Lab report

Repeatability measurements were taken on a bolt to get the total length, and also measuring the low rate of a faucet by measuring the amount of time it took to fill a beaker. To ensure a more accurate sample, twenty measurements of each section were obtained. For the batch measurement portion of this lab, a multi-meter was used to measure the resistance in a pack of ten resistors. Each member measured the resistors twice to allow for more precise statistical analysis.After all measurements were recorded, statistical analysis such as mean, standard deviation, and true mean range with 90%, 95%, and 99% confidence intervals were used to obtain the results. Once calculations were made, it was determined that there was error in this vibratory due to the environment and to human error, however all of the results fell within the ranges of confidence for each given section. Relevance In this experiment length, flow rate, and resistance was measured and the true mean was calculated. It was ob served that the true mean varied depending on the variation of the sample mean and sample standard deviation.It was shown that the population mean, or true mean, could not be found exactly, but could be estimated as a range with a certain level of confidence with the measurement of the sample mean and sample standard deviation. The knowledge practiced in this lab can be lawful in future experiments if say a company needs to estimate the population average with a specified level of confidence of a bolt that they only have a few samples of. Introduction There are multiple ways of measurement, as well as, many different types of ways to analyze raw data.In this lab the objective is to experiment with two different types of measurements, repeatability and batch measurements. Theoretically the bolt length plus the cap thickness (B+C) should be equal to the measured total length of the bolt(A). Taking multiple measurements done by multiple people until twenty samples re obtained measuring all four components of the bolt and obtaining the raw data of bolt measurements. By having multiple people take measurements a small amount of human error is removed in case one person didn't measure as accurate.By having multiple measurements done by each person a bigger sample size is obtained, and bigger sample size typically means more accurate results. After the measurements were made a sample mean was calculated, as well as, a sample standard deviation for all four components of the bolt. The sample mean and sample standard deviation were 2 lactated to estimate the true mean of the population with a level of confidence of 90 and 95 percent. Once the true mean of each component was estimated a comparison was made between the total length(A) and the sum of the cap thickness(S) and bolt length(C).In theory (B+C) should equal the total length of the bolt(A), as they represent the same length. Though they should be the same, they are not. The sum of measurements, (B) and (C) yield a much wider range of true mean than the measurement of (A). This difference is created by multiple types of error such as, human error, maybe reading the caliper wrong. Or error such as mechanical error, maybe the caliper itself was broken or not calibrated. In the second module of this lab the flow rate of the faucet water is measured using a stop watch and a mall beaker.Obtaining the flow rate of the water in 20 different samples, then summarizing the raw data into sample mean and sample standard deviation. With the sample mean and standard deviation, the true mean is to be estimated with a confidence level of 90 percent and then again with 95 percent. In the third module the measurements were made in batches. The measurements of batches of resistors were measured with a Center Multi-meter to make sure they all locked in at the same resistance. The resistors measured in this lab were quite strong, getting up to kick.Each group member measured the batch of resistors twice, then a pooled mean and pooled standard deviation was calculated. Pooling all the members samples together gives us one large sample and a more accurate estimate of the true mean. Using these calculated pooled mean and standard deviation the true mean was found as a range with a 99 percent level of confidence, and then again with a 95 percent level of confidence. The experimental setup and procedures are described in section The results of the experiments can be found n section {V} followed by conclusions in section {VI}.The appendix with the data chart can be found in section{Veil} Testing the repeatability of the measurements and taking the sample average and sample standard deviation to compare with each other, as well as, estimate the population mean and standard deviation. In three different modules linear dimension, flow rate, and resistance were measured. The primary objectives of this lab are to practice using devices that measure length and flow rate, to apply statistical principl es to raw data sets, and to become familiar with use off multi-meter. Formulas Used: Sample MeanStandard Deviation True Mean Range 3 Experiment: Equipment: Pittsburgh 6†³ Caliper Bolt Cent-Tech Digital Multi-meter CTD 10 pack of electrical resistors (gold, yellow, red, yellow) mall Beaker Digital Stopwatch Procedure: This experiment utilizes the billeted above. The experiment is broken down into three sections. First take the caliper and the bolt, calibrate the caliper to make sure that accurate measurements are collected. Measure the complete length of the bolt, thickness of the head, width of the threads and the length of the bolt to the base of the head.Repeat the measurement a total of twenty times split evenly between the roof members and record the results. Second, take a mall beaker and a stopwatch to the sink and turn the water faucet on to attain a constant flow rate of water. Use the stopwatch to measure the time it takes from the first drop of water entering the beak er to the instant the water begins to overflow from the top of the beaker. Empty the beaker of water repeat this measurement a total of twenty times split evenly between the group members and record the results. For the last portion of this lab, take a pack of resistors and the multi-meter.Set the millimeter to the appropriate reference resistance and begin measuring each of the sisters one at a 4 time. Each member will measure the set of resistors twice for a total of twenty resistance measurements per each member of the group. Record the measurements from each member and calculate the true mean resistance. Procedure Changes: The only change/ improvement made to the experiment was during the batch measurement section. It was found that more accurate readings of each resistor could be attained by taping the resistor pack to the table to keep it in place while using the probes to measure the resistance.This change will allow the group to move quicker through the experiment and not to make any mistakes such as possibly measuring the same resistor twice in a row. The experimental procedure is very straight forward and the group should not encounter any difficulties. Results/Discussion This lab required three different modules to be completed with two different types of measurements: batch and repeatability. The bolt measurement along with the volume flow rate were to be completed using repeatability, while the resistance module used batch measurements.The data was to be recorded and put into tables and analyzed using the mean, standard deviation, and true mean to determine whether the measurements were in the desired confidence intervals. 5 Linear Dimension Module: The first set of data was recorded using a manual caliper and a bolt. Four measurements were to be taken from the bolt: length, cap thickness, bolt length, and major diameter. These measurements lead to some error as expected, mostly human error and calibration of the manual calipers. There was also so me error due to the uneven sides of the bolt and the angle at which the calipers were held against the bolt.Table la. Shows the summarized data falls within the 95% Confidence Interval. Measurement Total Length (A) Cap Thickness (B) Bolt Length (C) Major Diameter (D) B+C Sample Mean (in. ) (in. ) 2. 2661 0. 0033 0. 2825 0. 0031 1 . 9791 0. 0262 . 30327 0. 0007 2. 2616 0. 0268 Table la. Statistics of Bolt Measurements (95%) [2. 265, 2. 267] [0. 2810, 0. 2839] [1. 967, 1. 991] [0. 3024, 0. 3030] [2. 249, 2. 274] The second part of the linear module was to compare the difference between the total length (A) and the sum of cap thickness and bolt length (B+C).The results show that there was a lower CLC with the total length measurement than with the addition of two parts. This is most likely because of the accuracy of two measurements has more mom for error from the angle of the calipers and human error. Table b. Shows the comparison of the two measurements. The full experimental data fo r the linear module is listed in Table A in the Appendix. Table b. Comparison of bolt statistics Flow Rate Module: Measurement of the flow rate from a sink using a stopwatch and beaker was the second of the repeatability measurements.This module produced the most error most likely from human error with stopping and starting of the stopwatch. The inconsistent flow from the sink also contributed to some of the error. The standard aviation in this experiment was high, but after 6 calculating the true mean range for a 90% and 95% confidence interval, the sample mean falls within both ranges with a few outliers. Table LLC. Shows the summary of the data. The full experimental data is listed in Table B in the Appendix . (ECMA/min) 5300. 95 CLC (ECMA/metro) 138. 835 [5247. 27, 5354. 3] Table LLC. Flow Rate Module Statistics 95% CLC (ECMA/metro) [5235. 97, 5365. 93] Resistance Module: In the final part of this lab, resistors were to be measured in batches from each of the group members. This section of the lab showed the most precision with the least error. From the color coded bands on the ten resistors, it was concluded that the value of the resistors was 470 sq. All of the results in table old. Show that the resistors were only reading 400 sq. All 60 recorded measurements were close to 400 ink which could be from mislabel resistors.The pooled mean of the three samples does fall within the 90% and 95% confidence intervals even with including some outliers in the data. The full experimental data can be found in Table C in the Appendix. Sample Mean (Q) 400. 033 99% (Q) 1. 588 [399. 02, 401. 05] Table old. Resistance Module Statistics 95% CLC (sq) [399. 29, 400. 78] Conclusion: This laboratory focused on repeatability measurements, batch measurements, and statistical concepts/ principles to analyze the collected data. This was achieved through the use of a caliper, stopwatch, and a digital multi-meter for measurement purposes.Using these tools, the group is able to meas ure length, flow rate, and resistance. The statistical concepts used in this lab were sample mean, standard deviation, true mean, and the range and level of confidence. The results of the linear dimension module prove that there is always going to be a small amount of human error when using devices such as a manual caliper. That error is relatively larger when trying to sum two measurements as compared to measuring a total length . The measurement of the bolt as a whole has a narrower CIA and true mean range of [2. 265, 2. 267].The 7 standard deviation for total length (A) [0. 0033 in. ] supports the theory that measuring the entire length at once is more accurate than summing the cap thickness (B) and bolt length (C) together, which is evident by analyzing the standard deviation of (B+C) [0. 0268 in. ]. The results of the flow rate module show that there is significantly far more human error when trying to measure the time it takes for water o fill a beaker. This can be attributed to response time of starting/stopping the stopwatch. The standard deviation [138. 835 /min] seems high, but calculations show that the sample mean [5300. 5 /min] falls within the true mean range for CLC [5247. 27, 5354. 63 /metro] and also for 95% CLC [5235. 97, 5365. 93 /min]. The results of the resistance module indicated a difference between the sample mean [400. 033 sq] of the batch measurements and the supposed value of the resistors [470 sq] according to the color coded bands. This was the most precise module with a standard deviation of [1. 588 sq] and all the pooled means fall within he 95% CLC with a true mean range of [399. 29, 400. 78 sq], and the 99% CLC with a range of [399. 02, 401. 05 sq].This laboratory experiment allowed the group to differentiate between repeatability measurements and batch measurements and apply the statistical theories learned in lecture to analyze the collected data. To minimize error percentage, calibrating the caliper before each measurement m ight be advantageous. Another advantage might be making markings on the bolt where each member of the group takes measurements instead of at random/different spots each time. Lab Report Lab Report 3 In this lab, we will take a trip to the planetarium lab and will learn about Right ascension and declination, and altitude and zenith. After looking at the different points shown, we will log the altitude and zenith in the chart in our lab manual. Now we will look at the same points and label the right ascension and declination. Then we will learn about the easiest way to locate the star Polaris. As we started the first program, we answered a few questions to make sure we knew the general idea of stars.Then we labeled the altitude and azimuth of five objects. Aldebran had a altitude of 54o and an azimuth of 203o. Betelgeuse had an altitude of 47o and an azimuth of 203o. Castor had an altitude of 62o and an azimuth 118o. Deneb had an altitude of 13o and an azimuth of 328o. Elnath had an altitude of 68o and an azimuth of 184o. After that, we looked at the right ascension and declination (RA and DEC). Aldebran had a RA of 4. 6 hours and a DEC of 16o. Elnath had an RA of 5. 3 hours and a DEC of 28o. Betelgeuse had an RA of 5. hours and a DEC of 8o. Castor had an RA of 7. 6 hours and a DEC of 32o. Deneb had an RA of 20. 7 hours and a DEC of 46o. Finally we looked at the Big Dipper and the Cassopia to find the star Polaris. This lab was super cool, I loved it. The planetarium was great way to learn more about the different constellations and stars in the sky. I never knew that Polaris was so close to the Big Dipper. Finding the all the right ascensions and declinations of the objects were fairly easy and felt like I learned to do it pretty easily now. Lab Report Example lab report of Synthesis of potassium tris (oxalato) ferrate (III) trihydrate Posted by  Nurul Yunaliyana Experiment 5: Synthesis of potassium tris (oxalato) ferrate (III) trihydrate Purpose: to synthesis potassium tris (oxalato) ferrate (III) trihydrate ,K3 [Fe (C2O4)3]. 3H2O. Introduction: Ferrous ammonium sulfate, Fe(NH4)2(SO4)2. 6H2O is dissolved in a slightly acid solution, excess oxalic acid, H2C2O4, is added and the following reaction takes place: Fe(NH4)2(SO4)2. 6H2O + H2C3O4 FeC2O4(s) + H2SO4 + (NH4)2SO4 + 6H2O FeC2O4 is finely divided precipitate and tends to be colloidal.However, heating the solution causes it to coagulate and facilitates separating the precipitate from the solution. Potassium oxalate is added to the FeC2O4 precipitate, which produces a slightly basic solution for the oxidation of the ferrous ion to the ferric ion, by hydroxide, H2O2. The following reaction takes place: H2O + HO2- +2Fe2+ 2Fe3+ + 3OH- The OH- ion concentration of the solution is hi gh enough so that some of the Fe3+ reacts with OH- to form ferric hydroxide(brown precipitate) as follows: Fe3+ + 3OH- Fe(OH)3 With the addition of more H2C2O4, the Fe(OH)3 dissolves and the soluble complex K3[fe(c2o4)3]. h20 is formed according to : 3k2C2O4 + 2Fe(OH)3 + 3H2C2O4 2K3[Fe(c2o4)3]. 3H20 + 3h2o Ethanol is added to the solution to cause the complex iron salt to precipitate. Data analysis and Discussion: In this experiment, I have studied how to synthesis coordination compound. Coordination compounds are formed when a neutral metal atom: Fe acting as a Lewis acid, reacts with some neutral molecules, acting as Lewis bases; or when a metallic cation, acting as a Lewis acid, reacts with any of a variety of organic or inorganic molecules, cations, or anions, acting as Lewis bases.These Lewis bases: C2O4 and H2O are called ligands. (Lewis acids are electron pair acceptors and Lewis bases are electron pair donors. Ferrous ammonium solution is added with oxalic acid dihydrate sol ution will form yellow solution with yellow precipitate. Fe(NH4)2(SO4)2. 6H2O + H2C3O4 FeC2O4(s) + H2SO4 + (NH4)2SO4 + 6H2O Then it is heated to boiling and the supernatant is decanted. As it is added with solid potassium oxalate, it is allowed to heat at 40 0 C and drop wise added with H2O2 and the solution turns to brown with precipitate for the oxidation of the ferrous ion to the ferric ion.H2O + HO2- +2Fe2+ 2Fe3+ + 3OH- Fe3+ + 3OH- Fe (OH) 3 Next, more oxalic acid dihydrate is added until the solution turns to colourless. 3k2C2O4 + 2Fe (OH) 3 + 3H2C2O4 2K3 [Fe (c2o4)3]. 3H20 + 3h2O The colourless solution is boiled then it turns to pale green solution. The solution is filtered then leaves for crystallization. After that, the green crystal is filtered and washed with 1:1 ethanol/ water and cooled acetone. The mass of bright (luminescent) green crystals is obtained which is 3. 2822 g. So, the percent yield of K3[Fe(C2O4)3]. H2O that I have obtained is 47. 72 %. The precautions tha t we must take are while heat the solution of ferrous ammonium sulfate and solution of oxalic acid dihydrate as it will bump. Next, beware of temperature (at least 40 0 C) of solution when add H2O2 into the solution. The next experiment is determination of the percentage of ligands in coordination compounds. Conclusion : I have studied how to synthesis coordination compound which is potassium tris (oxalato) ferrate (III) trihydrate ,K3 [Fe (C2O4)3]. H2O. The mass of bright (luminescent) green crystals is obtained which is 3. 2822 g. So, the percent yield of K3[Fe(C2O4)3]. 3H2O that I have obtained is 47. 72 %. Reference: 1. Hadariah Bahron, Kamariah Muda, S. Rohaiza S. Omar, Karimah Kassim (2011). Inorganic Chemistry. Experiments for Undergraduates, UPENA UiTM 2008. http://chem. science. oregonstate. edu/courses/ch221-3s/ch223s/2010_U_session_1/Report_Guideline_Green_Crystal_Sp_2010. pdf Lab Report Lab #7 Purpose: The purpose of this experiment is to analyze known solutions of Ba(NO3)2, Ca(NO3)2, Mg(NO3)2 and Sr(NO3)2 (alkaline earths) and known solutions of NaBr, NaCl and NaI (halogens). Then we are given an unknown solution to determine what ions are present. Materials: 1. Test tubes 2. Test tube holder 3. Pipet 4. 1 M H2SO4 5. 0. 1 M Na(NO3)2 6. 0. 1 M Ca(NO3)2 7. 1 M Na2CO3 8. 0. 25 M (NH4)2C2O4 9. 0. 1 M KIO3 10. Bromine water 11. Chlorine water 12. Iodine water 13. 0. 1 M NaCl 14. 0. 1 M NaBr 15. 0. 1 M NaI 16. Unknown (E) Methods:Alkaline Earths 1. Wash the test tubes of any residue 2. Add 12 drops of 1m H2SO4 to four test 3. Then add 12 drops of 0. 1m Ba(NO3)2 to one test tube containing 1M H2SO2 4. Add 12 drops of 0. 1m Ca(NO3)2 to another test tube containing 1M H2SO2 5. Add 12 drops of 0. 1m Mg(NO3)2 to another test tube containing 1M H2SO2 6. Add 12 drops of 0. 1m Sr(NO3)2 to the final test tube containing 1M H2SO2 7. Observe and take notes on the precipitate or the lack of precipitate in each reaction 8. Clean the test tubes after taking notes . Repeat the procedure, but now with 12 drops of 1m Na2CO3 in each test tube 10. Add 12 drops of 0. 1M Ca(NO3)2 to another test tube containing 1M Na2CO3 11. Add 12 drops of 0. 1M Mg(NO3)2 to another test tube containing 1M Na2CO3 12. Add 12 drops of 0. 1M Sr(NO3)2 to the final test tube containing 1M Na2CO3 13. Observe and take notes on the precipitate or the lack of precipitate in each reaction 14. Clean the test tubes after taking the notes 15. Repeat the process with 12 drops of 0. 25M (NH4)2C2O4 16.Observe and take notes on the precipitate or the lack of precipitate in each reaction 17. Clean the test tubes after taking the notes 18. Repeat the process with 12 drops of 0. 1M KIO3 19. Observe and take notes on the precipitate or the lack of precipitate in each reaction 20. Clean the test tubes after taking the notes 21. Repeat the process with 12 drops of unknown (E) 22. Observe and take notes on th e precipitate or the lack of precipitate in each reaction and deduct if it’s Ba(NO3)2, Ca(NO3)2, Mg(NO3)2 or Sr(NO3)2. 23. Clean the test tubes after taking the notesHalogens 1. Place a few drops of bromine water into the test tube and add 12 drops of heptane and shake 2. Repeat the process with chlorine water and iodine water and note any color changes in each 3. Clean the test tubes after taking the notes 4. Get three test tubes and add 12 drops of bromine water to each test tube with 12 drops of HEP 5. Add 12 drops of 0. 1M NaCl to the first test tube, 12 drops of 0. 1M NaBr to the second test tube and 12 drops of 0. 1M NaI to the third test tube 6. Note the color of each reaction 7. Clean the test tubes after taking the notes . Repeat the steps but with 12 drops of chlorine water in each test tube with 12 drops of HEP 9. Observe the color of each reaction 10. Clean the test tubes after taking the notes 11. Repeat the steps but with 12 drops of iodine water in each test tu be with 12 drops of HEP 12. Observe the color of each reaction 13. Clean the test tubes after taking the notes 14. Repeat the steps but with 12 drops of unknown (E) in each test tube with 12 drops of HEP 15. Observe the color of each reaction and deduct if the unknown is either NaBr, NaCl or NaI Results:Alkaline | H2SO4| Na2CO3| (NH4)2C2O4| KIO3| Ba(NO3)2| Cloudy white| Very cloudy white| White precipitate sits on bottom| Tiny amounts of white precipitate| Ca(NO3)2| No reaction | Cloudy white| Cloudy white precipitate| No reaction| Mg(NO3)2| No reaction| White film on top| No reaction | No reaction| Sr(NO3)2| White precipitate on top| White cloudy solution with some white precipitate| Faint white cloudy foggy precipitate| Little amounts of tiny white precipitate| Unknown (E) | No reaction | White film on top| No reaction| No reaction| .Unknown Alkaline Earth: Mg(NO3)2 Reaction between Halogens and Halides | NaBr| NaCl| NaI| Unknown (E)| Bromine water| Light faint yellow| Golden yell ow| Faint yellow tint| Light faint yellow| Chlorine water| Dark yellow amber | Colorless| Light yellow| Dark yellow amber| Iodine water| Light yellow tint| Dark red color| Light yellow| Light yellow tint| Unknown Halogen: NaBr Color of Halogens in solution | Br2| Cl2| I2| Water| Orangey-Brown| Colorless| Brown| HEP| Orange| Colorless| Purple | Conclusion: Lab Report In order to determine the relationship between coffee consumption and two types of vital signs, respiration rate and blood pressure, my group (Group 4) designed a lab that measured the respiration rate and blood pressure of two participants, once after consuming water and then again after consuming coffee. After testing two participants blood pressure and respiration rate, it was found that the vital signs of the participants remained the same after consuming water but decreased slightly after consuming coffee.This lab is significant because it demonstrates that the consumption of coffee, on the contrary to Group 4’s hypothesis, caused a decrease in the vital sign measurements of the two participants rather than increasing as we initially hypothesized. This lab was done to determine and compare the effects that coffee drinking has on blood pressure and the respiration rate in two participants.The hypothesis configured by our group was that after drinking 1 cup of water the par ticipant’s blood pressure and respiration rate would remain constant, but after the drinking 1cup of coffee the participants blood pressure and respiration rate would increase as a result of the common compounds found in coffee. The control in this experiment is 1 cup of water, because the participant’s blood pressure and respiration rate are being measured, but they have not been exposed to the common compounds found in coffee.The dependent variable in the study is the participant’s blood pressure and respiration rate because the vital signs are the component in the experiment that are being measured. The independent variable is what is changed in the experiment and in this experiment that would be the amount of the common compounds the participants consume in 1 cup of coffee. The results of our lab disproved our hypothesis, that consuming coffee would increase the participant’s blood pressure and respiration rate, as seen in Table 1, Graph 1, and Graph 2.Although our expectations of the measurement of vital signs after consuming 1 cup of water were correct, we had expected the results from the measurement of both the respiration rate and the blood pressure to noticeably increase after consuming coffee due to the common compounds found in coffee. The lab, actually, resulted in the decrease of respiration rate and blood pressure after the consumption of coffee.The study preformed by the National Cancer Institute measured the association between coffee and its affects on health, as a result of reading this article I conducted a study that worked off the same principle. However, in the lab I attempted to narrow the causal relationship between the two by measuring the participant’s vital signs, respiration rate and blood pressure, in relationship to consuming coffee versus water and any potential periods or repeated periods of evaluated or descended vital signs has to the longevity of one’s life.The results of the lab sup port the findings of the National Cancer Institute because the article states that consuming coffee has positive affects on health and our lab concluded that coffee consumption lowers blood pressure, which is necessary for a person that may struggle with high blood pressure to become healthy. During the lab, the participants physiology, blood pressure and respiration rate, was lowered after consuming coffee, this served to calm the participant’s vital signs. To improve the validity of the study a few changes could be made to improve the results.For example, I believe that the vital signs were not effected greatly because of the time span used to complete the study, after drinking the coffee we immediately took the vital signs instead of waiting for the full effect to take place. An additional reason for the higher levels of the vital signs before the consumption of coffee could have been due to activities done prior to the lab thus increasing the vital sings measured after dr inking water. To improve upon these imperfections, the study could be done earlier in the day and with more resting periods before vital signs are taken.This lab was designed to determine the relationship between coffee consumption and two types of vital signs, respiration and blood pressure. The lab measured the respiration rate and blood pressure of two participants, once after consuming water and then again after consuming coffee. I hypothesized that the consumption of coffee would dramatically increase the participant’s respiration rate and blood pressure due to the consumption of the common compounds found in coffee that typically raise energy levels and alertness.However, the lab resulted in slightly lower respiration rates and blood pressure after the consumption of coffee than water as seen in Table 1, Graph 1, and Graph 2. The lab is significant because it demonstrates that the consumption of coffee, in contrast to our hypothesis, caused a decrease in the vital sign measurements of the two participants rather than increasing as we originally hypothesized. Works Cited National Institues of Health. â€Å"Coffee drinkers have lower risk of death, study suggests. † ScienceDaily, 19 May 2012. Web. 9 Oct. 2012 Lab report Repeatability measurements were taken on a bolt to get the total length, and also measuring the low rate of a faucet by measuring the amount of time it took to fill a beaker. To ensure a more accurate sample, twenty measurements of each section were obtained. For the batch measurement portion of this lab, a multi-meter was used to measure the resistance in a pack of ten resistors. Each member measured the resistors twice to allow for more precise statistical analysis.After all measurements were recorded, statistical analysis such as mean, standard deviation, and true mean range with 90%, 95%, and 99% confidence intervals were used to obtain the results. Once calculations were made, it was determined that there was error in this vibratory due to the environment and to human error, however all of the results fell within the ranges of confidence for each given section. Relevance In this experiment length, flow rate, and resistance was measured and the true mean was calculated. It was ob served that the true mean varied depending on the variation of the sample mean and sample standard deviation.It was shown that the population mean, or true mean, could not be found exactly, but could be estimated as a range with a certain level of confidence with the measurement of the sample mean and sample standard deviation. The knowledge practiced in this lab can be lawful in future experiments if say a company needs to estimate the population average with a specified level of confidence of a bolt that they only have a few samples of. Introduction There are multiple ways of measurement, as well as, many different types of ways to analyze raw data.In this lab the objective is to experiment with two different types of measurements, repeatability and batch measurements. Theoretically the bolt length plus the cap thickness (B+C) should be equal to the measured total length of the bolt(A). Taking multiple measurements done by multiple people until twenty samples re obtained measuring all four components of the bolt and obtaining the raw data of bolt measurements. By having multiple people take measurements a small amount of human error is removed in case one person didn't measure as accurate.By having multiple measurements done by each person a bigger sample size is obtained, and bigger sample size typically means more accurate results. After the measurements were made a sample mean was calculated, as well as, a sample standard deviation for all four components of the bolt. The sample mean and sample standard deviation were 2 lactated to estimate the true mean of the population with a level of confidence of 90 and 95 percent. Once the true mean of each component was estimated a comparison was made between the total length(A) and the sum of the cap thickness(S) and bolt length(C).In theory (B+C) should equal the total length of the bolt(A), as they represent the same length. Though they should be the same, they are not. The sum of measurements, (B) and (C) yield a much wider range of true mean than the measurement of (A). This difference is created by multiple types of error such as, human error, maybe reading the caliper wrong. Or error such as mechanical error, maybe the caliper itself was broken or not calibrated. In the second module of this lab the flow rate of the faucet water is measured using a stop watch and a mall beaker.Obtaining the flow rate of the water in 20 different samples, then summarizing the raw data into sample mean and sample standard deviation. With the sample mean and standard deviation, the true mean is to be estimated with a confidence level of 90 percent and then again with 95 percent. In the third module the measurements were made in batches. The measurements of batches of resistors were measured with a Center Multi-meter to make sure they all locked in at the same resistance. The resistors measured in this lab were quite strong, getting up to kick.Each group member measured the batch of resistors twice, then a pooled mean and pooled standard deviation was calculated. Pooling all the members samples together gives us one large sample and a more accurate estimate of the true mean. Using these calculated pooled mean and standard deviation the true mean was found as a range with a 99 percent level of confidence, and then again with a 95 percent level of confidence. The experimental setup and procedures are described in section The results of the experiments can be found n section {V} followed by conclusions in section {VI}.The appendix with the data chart can be found in section{Veil} Testing the repeatability of the measurements and taking the sample average and sample standard deviation to compare with each other, as well as, estimate the population mean and standard deviation. In three different modules linear dimension, flow rate, and resistance were measured. The primary objectives of this lab are to practice using devices that measure length and flow rate, to apply statistical principl es to raw data sets, and to become familiar with use off multi-meter. Formulas Used: Sample MeanStandard Deviation True Mean Range 3 Experiment: Equipment: Pittsburgh 6†³ Caliper Bolt Cent-Tech Digital Multi-meter CTD 10 pack of electrical resistors (gold, yellow, red, yellow) mall Beaker Digital Stopwatch Procedure: This experiment utilizes the billeted above. The experiment is broken down into three sections. First take the caliper and the bolt, calibrate the caliper to make sure that accurate measurements are collected. Measure the complete length of the bolt, thickness of the head, width of the threads and the length of the bolt to the base of the head.Repeat the measurement a total of twenty times split evenly between the roof members and record the results. Second, take a mall beaker and a stopwatch to the sink and turn the water faucet on to attain a constant flow rate of water. Use the stopwatch to measure the time it takes from the first drop of water entering the beak er to the instant the water begins to overflow from the top of the beaker. Empty the beaker of water repeat this measurement a total of twenty times split evenly between the group members and record the results. For the last portion of this lab, take a pack of resistors and the multi-meter.Set the millimeter to the appropriate reference resistance and begin measuring each of the sisters one at a 4 time. Each member will measure the set of resistors twice for a total of twenty resistance measurements per each member of the group. Record the measurements from each member and calculate the true mean resistance. Procedure Changes: The only change/ improvement made to the experiment was during the batch measurement section. It was found that more accurate readings of each resistor could be attained by taping the resistor pack to the table to keep it in place while using the probes to measure the resistance.This change will allow the group to move quicker through the experiment and not to make any mistakes such as possibly measuring the same resistor twice in a row. The experimental procedure is very straight forward and the group should not encounter any difficulties. Results/Discussion This lab required three different modules to be completed with two different types of measurements: batch and repeatability. The bolt measurement along with the volume flow rate were to be completed using repeatability, while the resistance module used batch measurements.The data was to be recorded and put into tables and analyzed using the mean, standard deviation, and true mean to determine whether the measurements were in the desired confidence intervals. 5 Linear Dimension Module: The first set of data was recorded using a manual caliper and a bolt. Four measurements were to be taken from the bolt: length, cap thickness, bolt length, and major diameter. These measurements lead to some error as expected, mostly human error and calibration of the manual calipers. There was also so me error due to the uneven sides of the bolt and the angle at which the calipers were held against the bolt.Table la. Shows the summarized data falls within the 95% Confidence Interval. Measurement Total Length (A) Cap Thickness (B) Bolt Length (C) Major Diameter (D) B+C Sample Mean (in. ) (in. ) 2. 2661 0. 0033 0. 2825 0. 0031 1 . 9791 0. 0262 . 30327 0. 0007 2. 2616 0. 0268 Table la. Statistics of Bolt Measurements (95%) [2. 265, 2. 267] [0. 2810, 0. 2839] [1. 967, 1. 991] [0. 3024, 0. 3030] [2. 249, 2. 274] The second part of the linear module was to compare the difference between the total length (A) and the sum of cap thickness and bolt length (B+C).The results show that there was a lower CLC with the total length measurement than with the addition of two parts. This is most likely because of the accuracy of two measurements has more mom for error from the angle of the calipers and human error. Table b. Shows the comparison of the two measurements. The full experimental data fo r the linear module is listed in Table A in the Appendix. Table b. Comparison of bolt statistics Flow Rate Module: Measurement of the flow rate from a sink using a stopwatch and beaker was the second of the repeatability measurements.This module produced the most error most likely from human error with stopping and starting of the stopwatch. The inconsistent flow from the sink also contributed to some of the error. The standard aviation in this experiment was high, but after 6 calculating the true mean range for a 90% and 95% confidence interval, the sample mean falls within both ranges with a few outliers. Table LLC. Shows the summary of the data. The full experimental data is listed in Table B in the Appendix . (ECMA/min) 5300. 95 CLC (ECMA/metro) 138. 835 [5247. 27, 5354. 3] Table LLC. Flow Rate Module Statistics 95% CLC (ECMA/metro) [5235. 97, 5365. 93] Resistance Module: In the final part of this lab, resistors were to be measured in batches from each of the group members. This section of the lab showed the most precision with the least error. From the color coded bands on the ten resistors, it was concluded that the value of the resistors was 470 sq. All of the results in table old. Show that the resistors were only reading 400 sq. All 60 recorded measurements were close to 400 ink which could be from mislabel resistors.The pooled mean of the three samples does fall within the 90% and 95% confidence intervals even with including some outliers in the data. The full experimental data can be found in Table C in the Appendix. Sample Mean (Q) 400. 033 99% (Q) 1. 588 [399. 02, 401. 05] Table old. Resistance Module Statistics 95% CLC (sq) [399. 29, 400. 78] Conclusion: This laboratory focused on repeatability measurements, batch measurements, and statistical concepts/ principles to analyze the collected data. This was achieved through the use of a caliper, stopwatch, and a digital multi-meter for measurement purposes.Using these tools, the group is able to meas ure length, flow rate, and resistance. The statistical concepts used in this lab were sample mean, standard deviation, true mean, and the range and level of confidence. The results of the linear dimension module prove that there is always going to be a small amount of human error when using devices such as a manual caliper. That error is relatively larger when trying to sum two measurements as compared to measuring a total length . The measurement of the bolt as a whole has a narrower CIA and true mean range of [2. 265, 2. 267].The 7 standard deviation for total length (A) [0. 0033 in. ] supports the theory that measuring the entire length at once is more accurate than summing the cap thickness (B) and bolt length (C) together, which is evident by analyzing the standard deviation of (B+C) [0. 0268 in. ]. The results of the flow rate module show that there is significantly far more human error when trying to measure the time it takes for water o fill a beaker. This can be attributed to response time of starting/stopping the stopwatch. The standard deviation [138. 835 /min] seems high, but calculations show that the sample mean [5300. 5 /min] falls within the true mean range for CLC [5247. 27, 5354. 63 /metro] and also for 95% CLC [5235. 97, 5365. 93 /min]. The results of the resistance module indicated a difference between the sample mean [400. 033 sq] of the batch measurements and the supposed value of the resistors [470 sq] according to the color coded bands. This was the most precise module with a standard deviation of [1. 588 sq] and all the pooled means fall within he 95% CLC with a true mean range of [399. 29, 400. 78 sq], and the 99% CLC with a range of [399. 02, 401. 05 sq].This laboratory experiment allowed the group to differentiate between repeatability measurements and batch measurements and apply the statistical theories learned in lecture to analyze the collected data. To minimize error percentage, calibrating the caliper before each measurement m ight be advantageous. Another advantage might be making markings on the bolt where each member of the group takes measurements instead of at random/different spots each time. Lab Report Lab Report 3 In this lab, we will take a trip to the planetarium lab and will learn about Right ascension and declination, and altitude and zenith. After looking at the different points shown, we will log the altitude and zenith in the chart in our lab manual. Now we will look at the same points and label the right ascension and declination. Then we will learn about the easiest way to locate the star Polaris. As we started the first program, we answered a few questions to make sure we knew the general idea of stars.Then we labeled the altitude and azimuth of five objects. Aldebran had a altitude of 54o and an azimuth of 203o. Betelgeuse had an altitude of 47o and an azimuth of 203o. Castor had an altitude of 62o and an azimuth 118o. Deneb had an altitude of 13o and an azimuth of 328o. Elnath had an altitude of 68o and an azimuth of 184o. After that, we looked at the right ascension and declination (RA and DEC). Aldebran had a RA of 4. 6 hours and a DEC of 16o. Elnath had an RA of 5. 3 hours and a DEC of 28o. Betelgeuse had an RA of 5. hours and a DEC of 8o. Castor had an RA of 7. 6 hours and a DEC of 32o. Deneb had an RA of 20. 7 hours and a DEC of 46o. Finally we looked at the Big Dipper and the Cassopia to find the star Polaris. This lab was super cool, I loved it. The planetarium was great way to learn more about the different constellations and stars in the sky. I never knew that Polaris was so close to the Big Dipper. Finding the all the right ascensions and declinations of the objects were fairly easy and felt like I learned to do it pretty easily now. Lab Report Example lab report of Synthesis of potassium tris (oxalato) ferrate (III) trihydrate Posted by  Nurul Yunaliyana Experiment 5: Synthesis of potassium tris (oxalato) ferrate (III) trihydrate Purpose: to synthesis potassium tris (oxalato) ferrate (III) trihydrate ,K3 [Fe (C2O4)3]. 3H2O. Introduction: Ferrous ammonium sulfate, Fe(NH4)2(SO4)2. 6H2O is dissolved in a slightly acid solution, excess oxalic acid, H2C2O4, is added and the following reaction takes place: Fe(NH4)2(SO4)2. 6H2O + H2C3O4 FeC2O4(s) + H2SO4 + (NH4)2SO4 + 6H2O FeC2O4 is finely divided precipitate and tends to be colloidal.However, heating the solution causes it to coagulate and facilitates separating the precipitate from the solution. Potassium oxalate is added to the FeC2O4 precipitate, which produces a slightly basic solution for the oxidation of the ferrous ion to the ferric ion, by hydroxide, H2O2. The following reaction takes place: H2O + HO2- +2Fe2+ 2Fe3+ + 3OH- The OH- ion concentration of the solution is hi gh enough so that some of the Fe3+ reacts with OH- to form ferric hydroxide(brown precipitate) as follows: Fe3+ + 3OH- Fe(OH)3 With the addition of more H2C2O4, the Fe(OH)3 dissolves and the soluble complex K3[fe(c2o4)3]. h20 is formed according to : 3k2C2O4 + 2Fe(OH)3 + 3H2C2O4 2K3[Fe(c2o4)3]. 3H20 + 3h2o Ethanol is added to the solution to cause the complex iron salt to precipitate. Data analysis and Discussion: In this experiment, I have studied how to synthesis coordination compound. Coordination compounds are formed when a neutral metal atom: Fe acting as a Lewis acid, reacts with some neutral molecules, acting as Lewis bases; or when a metallic cation, acting as a Lewis acid, reacts with any of a variety of organic or inorganic molecules, cations, or anions, acting as Lewis bases.These Lewis bases: C2O4 and H2O are called ligands. (Lewis acids are electron pair acceptors and Lewis bases are electron pair donors. Ferrous ammonium solution is added with oxalic acid dihydrate sol ution will form yellow solution with yellow precipitate. Fe(NH4)2(SO4)2. 6H2O + H2C3O4 FeC2O4(s) + H2SO4 + (NH4)2SO4 + 6H2O Then it is heated to boiling and the supernatant is decanted. As it is added with solid potassium oxalate, it is allowed to heat at 40 0 C and drop wise added with H2O2 and the solution turns to brown with precipitate for the oxidation of the ferrous ion to the ferric ion.H2O + HO2- +2Fe2+ 2Fe3+ + 3OH- Fe3+ + 3OH- Fe (OH) 3 Next, more oxalic acid dihydrate is added until the solution turns to colourless. 3k2C2O4 + 2Fe (OH) 3 + 3H2C2O4 2K3 [Fe (c2o4)3]. 3H20 + 3h2O The colourless solution is boiled then it turns to pale green solution. The solution is filtered then leaves for crystallization. After that, the green crystal is filtered and washed with 1:1 ethanol/ water and cooled acetone. The mass of bright (luminescent) green crystals is obtained which is 3. 2822 g. So, the percent yield of K3[Fe(C2O4)3]. H2O that I have obtained is 47. 72 %. The precautions tha t we must take are while heat the solution of ferrous ammonium sulfate and solution of oxalic acid dihydrate as it will bump. Next, beware of temperature (at least 40 0 C) of solution when add H2O2 into the solution. The next experiment is determination of the percentage of ligands in coordination compounds. Conclusion : I have studied how to synthesis coordination compound which is potassium tris (oxalato) ferrate (III) trihydrate ,K3 [Fe (C2O4)3]. H2O. The mass of bright (luminescent) green crystals is obtained which is 3. 2822 g. So, the percent yield of K3[Fe(C2O4)3]. 3H2O that I have obtained is 47. 72 %. Reference: 1. Hadariah Bahron, Kamariah Muda, S. Rohaiza S. Omar, Karimah Kassim (2011). Inorganic Chemistry. Experiments for Undergraduates, UPENA UiTM 2008. http://chem. science. oregonstate. edu/courses/ch221-3s/ch223s/2010_U_session_1/Report_Guideline_Green_Crystal_Sp_2010. pdf Lab Report Lab #7 Purpose: The purpose of this experiment is to analyze known solutions of Ba(NO3)2, Ca(NO3)2, Mg(NO3)2 and Sr(NO3)2 (alkaline earths) and known solutions of NaBr, NaCl and NaI (halogens). Then we are given an unknown solution to determine what ions are present. Materials: 1. Test tubes 2. Test tube holder 3. Pipet 4. 1 M H2SO4 5. 0. 1 M Na(NO3)2 6. 0. 1 M Ca(NO3)2 7. 1 M Na2CO3 8. 0. 25 M (NH4)2C2O4 9. 0. 1 M KIO3 10. Bromine water 11. Chlorine water 12. Iodine water 13. 0. 1 M NaCl 14. 0. 1 M NaBr 15. 0. 1 M NaI 16. Unknown (E) Methods:Alkaline Earths 1. Wash the test tubes of any residue 2. Add 12 drops of 1m H2SO4 to four test 3. Then add 12 drops of 0. 1m Ba(NO3)2 to one test tube containing 1M H2SO2 4. Add 12 drops of 0. 1m Ca(NO3)2 to another test tube containing 1M H2SO2 5. Add 12 drops of 0. 1m Mg(NO3)2 to another test tube containing 1M H2SO2 6. Add 12 drops of 0. 1m Sr(NO3)2 to the final test tube containing 1M H2SO2 7. Observe and take notes on the precipitate or the lack of precipitate in each reaction 8. Clean the test tubes after taking notes . Repeat the procedure, but now with 12 drops of 1m Na2CO3 in each test tube 10. Add 12 drops of 0. 1M Ca(NO3)2 to another test tube containing 1M Na2CO3 11. Add 12 drops of 0. 1M Mg(NO3)2 to another test tube containing 1M Na2CO3 12. Add 12 drops of 0. 1M Sr(NO3)2 to the final test tube containing 1M Na2CO3 13. Observe and take notes on the precipitate or the lack of precipitate in each reaction 14. Clean the test tubes after taking the notes 15. Repeat the process with 12 drops of 0. 25M (NH4)2C2O4 16.Observe and take notes on the precipitate or the lack of precipitate in each reaction 17. Clean the test tubes after taking the notes 18. Repeat the process with 12 drops of 0. 1M KIO3 19. Observe and take notes on the precipitate or the lack of precipitate in each reaction 20. Clean the test tubes after taking the notes 21. Repeat the process with 12 drops of unknown (E) 22. Observe and take notes on th e precipitate or the lack of precipitate in each reaction and deduct if it’s Ba(NO3)2, Ca(NO3)2, Mg(NO3)2 or Sr(NO3)2. 23. Clean the test tubes after taking the notesHalogens 1. Place a few drops of bromine water into the test tube and add 12 drops of heptane and shake 2. Repeat the process with chlorine water and iodine water and note any color changes in each 3. Clean the test tubes after taking the notes 4. Get three test tubes and add 12 drops of bromine water to each test tube with 12 drops of HEP 5. Add 12 drops of 0. 1M NaCl to the first test tube, 12 drops of 0. 1M NaBr to the second test tube and 12 drops of 0. 1M NaI to the third test tube 6. Note the color of each reaction 7. Clean the test tubes after taking the notes . Repeat the steps but with 12 drops of chlorine water in each test tube with 12 drops of HEP 9. Observe the color of each reaction 10. Clean the test tubes after taking the notes 11. Repeat the steps but with 12 drops of iodine water in each test tu be with 12 drops of HEP 12. Observe the color of each reaction 13. Clean the test tubes after taking the notes 14. Repeat the steps but with 12 drops of unknown (E) in each test tube with 12 drops of HEP 15. Observe the color of each reaction and deduct if the unknown is either NaBr, NaCl or NaI Results:Alkaline | H2SO4| Na2CO3| (NH4)2C2O4| KIO3| Ba(NO3)2| Cloudy white| Very cloudy white| White precipitate sits on bottom| Tiny amounts of white precipitate| Ca(NO3)2| No reaction | Cloudy white| Cloudy white precipitate| No reaction| Mg(NO3)2| No reaction| White film on top| No reaction | No reaction| Sr(NO3)2| White precipitate on top| White cloudy solution with some white precipitate| Faint white cloudy foggy precipitate| Little amounts of tiny white precipitate| Unknown (E) | No reaction | White film on top| No reaction| No reaction| .Unknown Alkaline Earth: Mg(NO3)2 Reaction between Halogens and Halides | NaBr| NaCl| NaI| Unknown (E)| Bromine water| Light faint yellow| Golden yell ow| Faint yellow tint| Light faint yellow| Chlorine water| Dark yellow amber | Colorless| Light yellow| Dark yellow amber| Iodine water| Light yellow tint| Dark red color| Light yellow| Light yellow tint| Unknown Halogen: NaBr Color of Halogens in solution | Br2| Cl2| I2| Water| Orangey-Brown| Colorless| Brown| HEP| Orange| Colorless| Purple | Conclusion:

Dhaping human behaviour Essay

Socialisation is the lifelong process by which human behaviour is shaped through experience in social institutions (e.g. family, which is a crucial factor in primary socialisation). Through socialization, individuals learn the values, norms (formal and informal rules), and beliefs of a given society.  In considering the nature of the self, it is necessary to include a still more fundamental social scientific issue – the extent to which human beings are being formed by biological inheritance (i.e. genetic determinism), or through socialisation (i.e. cultural determinism); the issue called nature-nurture debate. Another way to put this is the difference between instinct and learned behaviour, where instinct is inherited, and learned behaviour acquired through socialisation. Sociologists does not really consider instinctive behaviour; therefore, most sociologists would only accept there are inborn needs of food, shelter and sex. Other than these three, sociologists prefer the fact that human behaviour is shaped by social experience rather than that it is biologically ‘given’.  However, although the direction of sociology is towards social explanation, there is no contradiction between social and biological explanations of behaviour. It is just a matter of empirical research by biologists, sociologists, social biologists and by other relevant subject specialists to find explanations of human behaviour. According to sociologist Charles Cooley, there are two types of socialisation: primary and secondary. Those factors that are involved in primary socialisation are usually small, involve face-to-face interaction and communication and allow the individual to express the whole self, both feelings and intellect. Usually, those factors are the family, peer groups, of close friends and closely-knit groups of neighbours. Within these groups, through personal experience, the individual learns ‘primary values’ such as love, loyalty, justice, sharing, and etc. Freud claimed that the first few years of a person’s life – those usually spent amongst primary groups – are the most important in forming the structure of the person’s character. In contrast, secondary groups are usually large, more impersonal and formally organised, and exist for specific purposes. In the secondary stage, the individual learns by himself or herself more values and norms which are to be applied for the individual to fit in. This includes learning how to organise and conduct oneself in formal contexts (backgrounds) and how to behave towards people who have different degrees of status and authority. One of the crucial agents of secondary socialisation is school. Trade unions and professional associations, also secondary socialisation agents, can affect an individual’s behaviour when an individual agrees to conform to the beliefs, aims and regulations of the organisation. Therefore, indirectly, the individual accepts a socialising influence on his or her conduct. In both primary and secondary groups, the mass media (e.g. radio, television, the cinema) also plays a vital part in socialising individuals. For example during primary socialisation, by watching certain cartoons, a child (although indirectly) can already be socialised of his or her gender roles, such as patriarchal ideology (e.g. where the cartoon might portray the girl as the weaker one, always being bullied and being the helpless, damsel in distress; while the boy will then be the hero). Later, during secondary socialisation, magazines (a form of mass media) can also reinforce gender roles such as saying that girls must learn to cook so that they could cook for their husbands later in marriage. One way of studying the role of society in shaping human behaviour is to examine the development of individuals who were either completely or nearly excluded from any social interaction for a period of their lives. This includes cases of those who spent most of their childhood isolated from others in the wild (such as the ‘Wild boy of Aveyron’ and the two girls, ‘Wolf children of Bengal’) and those who were cut off from others through confinement (imprisonment), also during childhood (such as the cases of Anna and Isabelle). The case of the wolf children revealed that their behaviour was very similar to the wolves that had apparently raised them. They preferred raw meat, moved on all fours and lacked any form of speech. There is a more recent case described by O’Donnell where a 14 year old boy found in the Syrian desert had exceptional speed and had adopted some of the behavioural characteristics of the gazelles he was found with.

GROUP CYCLES Term Paper Example | Topics and Well Written Essays - 250 words

GROUP CYCLES - Term Paper Example But after I got into the team, I learned that being in it wasnt so glamorous and exciting as Id previously thought. Before long I discovered that the head cheerleader and another cheerleader were having intense arguments on how to lead the team. This period was very stormy and difficult for us. What I have learned and experienced through being in the team was how to cope with difficult and complex social situations. I had to learn how to manage the fragile situation between the two feuding cheerleaders and this helped me develop a skill of conflict resolution. After having experienced that, I now know how to solve conflicts that arise in my daily life much better. Still, although Ive gained much from that experience, I wouldnt want to be in a cheerleading team again. Now Im in college as a Psychology student and Ive recently learned that what Id gone through with the cheerleading team was a process of group development, which can be divided into a few stages of a model. Now I could i dentify that weve gone through the stages of forming, storming, norming and then

Hygiene Essay Example | Topics and Well Written Essays - 1500 words

Hygiene - Essay Example Hygiene simply refers to a science that deals with the preservation of health. Hygiene can also be identified as a set of practices that are associated with, or help in the preservation of health. Hygiene recommendations and requirements will vary under different situations both in society and in the medical field. This is because the perception of hygiene among different ethnic groups or cultures may vary and also the hygiene recommendations in a particular field of medicine may vary from those in a different field. The main reason why hygiene is emphasized on in the medical field is because it reduces the risk of spreading diseases. It controls the multiplication and spread of organisms that cause diseases in everyday life settings. There are different types of hygiene that are essential in the preservation of health, for example, hand hygiene. This is the most common societal form of hygiene. It is also referred to as hand washing and health experts recommend the washing of hands with a hand sanitizer such as soap. Hand hygiene is essential in preventing the spread of diseases in everyday life because the hands come in to contact with many things, such as unclean surfaces, and for this reason, it so happens that hands are more prone to transferring bacteria that will cause diseases. Other forms of hygiene may include food hygiene, laundry hygiene, and personal hygiene among many others. In the field of medicine, hygiene is summed up in to medical hygiene. This refers to the practices which regulate the administration of medicine and medical care. The main agenda of medical hygiene is to minimize the spread of diseases or even to prevent diseases from spreading. For example, if there is a patient who has been diagnosed or is showing symptoms of a particular infectious disease, then the prudent medical hygiene procedure that should be followed is isolation. The medical term used for isolation is quarantine. Hand hygiene is also pertinent to medical hygiene. Me dical practitioners are required to wash their hands before handling a patient. This requirement is emphasized more when one is about to enter an operating room but the role that hand hygiene plays in the general hospital or health care setting cannot be overlooked because some bacteria that spread diseases are easily transmittable. In the 20th century, an outbreak of a number of highly infectious and deadly diseases was experienced. One such disease was Ebola. The rate of transmission of these viruses necessitated the tightening of medical hygiene and since then, such practices as proper disposal of medical waste is a key element in medical hygiene. The Role of Hygiene in Adult Nursing Adult nursing is the field of nursing which deals with and cares for adult patients who are suffering from acute and long term illnesses and diseases (Baughan & Smith, 2009). An adult nurse’s primary duty is to support the patient in their recovery process. This kind of support is offered by t he use of care plans, and by carrying out care procedures and assessment. Apart from this, the adult nurse should educate the patient on how they can promote good health. This is where hygiene comes in. Hygiene is important in adult nursing and any other kinds of medical practice because it also helps the patient to recover from the diseases or illnesses that they are suffering from (Bullock, Clark & Marlone, 2012, p. 344). It is evident that adults, especially those who are well advanced in age, have immune systems and bodies which are more prone to diseases. This is because the immune system weakens gradually as the body itself ages. When an adult patient is infected by disease causing bacteria, they are

Critically evaluate the idea that increasing self-esteem is associated Essay

Critically evaluate the idea that increasing self-esteem is associated with better academic performance - Essay Example However the same holds true for adults who are under the aegis of an educational institution. The paper has taken a deep and incisive look at the psychological aspects which have both benefited and hampered the academic performance ranks of the students. Self-esteem and self-awareness are important tenets of an individual who is willing to gain an insight as per his actions, behaviors and manifestations. Academic performance is the sole domain of a student who wants to achieve success within his educational curriculum so that his future life could be secured. This, he does in order to have an educational pattern which is filled with success right from the outset of his acquiring the same. Therefore it is pretty important to suggest that academic performance depends a great deal on the way the students perceive their own lives and see this within the contexts of their perceptional abilities and self-esteem issues. However these could easily be marred by the consistent self-denial representations of the wrongs that hamper any student at a given time or even the misquoted ideals that have sprung up with the passage of time. All of these topics are deemed as significant when one tries to measure the righteousness of a student’s a cademic abilities and skills in the long run. Low self-esteem is indeed an epidemic, more so because it asks of the student to display a sense of negativity related with his own educational journey (Baumeister et al, 2003). When the same is measured from an academic performance yardstick, there are serious shortfalls which could easily be highlighted. These include the exact patterns as to how the student fell from a position of significance within the educational realms to one of an area of inferiority. Also the exact rationale for his jealousy with regards to other students is ascertained and the logical conclusions are drawn up in the light of the same. There are other avenues where global and

Redbox Essay Example | Topics and Well Written Essays - 250 words

Redbox - Essay Example ly, the Redbox provided video games that are good sources of entertainment of children thereby relieving their parents once they are in stores and restaurants among other places (Redbox Corporate Managemen 00: 01:46). Notably, other than being initiated by the McDonald’s management, the Redbox was introduced to other retail outlets including mass retailers, grocery and convenience stores, and pharmacies among other fast food restaurants. Finally, it is worth noting that despite the Redbox not only started its operation as a movie selling store kiosk, but also majored on items including grocery items including eggs, milk, and sandwiches. However, of all the store kiosks, the DVD rental kiosks became more successful of the other grocery kiosks thereby making the company to focus on the DVD market (Redbox Corporate Managemen 00: 08:22). Notably, the same success of the DVD kiosks has made the company to be thinking of expanding the market to other regions with the immediate region in mind being

The project management in the construction and operation of a Assignment

The project management in the construction and operation of a restaurant - Assignment Example The technical component is necessary to recognize the critical activities that influence the total length of time a project takes to finish. The human resource elements deal with the issues of headship and worker inspiration within a group or team atmosphere. A project is an organized activity to accomplish an objective. It can be defined as a series of related tasks that are directed towards a common output which will be completed during a period of time. It is the planning, directing and controlling resources (people, equipment, material) to meet the technical, cost and time constraints of the project. A project is a completely new task; thus there are no repetitive activities. It will be operated for the first time and the challenge cannot be predicted which may incur in future. The team members have to be conscious about their work and should monitor whether they can achieve the desired objective. Thus there will be continuous evaluation, monitoring, controlling till the project is completed. In short, we can say that the project management has taken place during the overall life of the project. New project team will be formed and after accomplishing its objective, it will be dispersed. Thus there will be more time required for the team members to perform effectively and there should be a conscious effort to ensure the participation of the team members by way of effective communication and motivation. Responsibilities of the project manager: Project managers characteristically have a distinctive role within the conventional organisation structure. Most project management squads are multidisciplinary in character, concerning a wide variety of abilities and organisational units. Frequently these teams consist of people from engineering, operations and marketing, and from support services that include risk management, systems operations, auditing, and legal groups. Accordingly, today's project managers have to often cross conventional functional lines to achieve the support necessary for the completion of a project. In most occasions, this support is requested without formal authority. Therefore, the project manager must make a combined culture that relies a lot on social skills as well as practical expertise. Without the authority of a traditional functional manager and the allied system of rewards and penalties, project managers have to make their authority by building trust, respect, and credibility among project members, as well as by representing sound decision making - all within an exciting work situation. High-performance project teams: In today's multifaceted and hi-tech sophisticated environment, the cluster has remerged in significance in the structure of project teams, the qualities of a project team and its vital performance relied on many aspects that involve both people and structural matters. Even though each organisation has its own methods of performance, there is common agreement among project managers on which aspects are separated into the following four categories: 1. Task-associated variables are direct measures of task performance, such as the skill to generate standard results on time and within budget, inventive performance, and the skill to change. 2.

LLB Assignment Example | Topics and Well Written Essays - 2500 words

LLB - Assignment Example The author asks Kaplan why he believes that the Balanced Scorecard had become so entrenched in the business world and its internal process and matrix. To which Kaplan sites what he feels is the tremendous communication gap between those creating the strategy and vision of the company at the top, and those that are attempting to implement that strategy on the front lines and in the real world at the bottom, so to speak. Kaplan states that the Balanced Scorecard helps to bridge the gap between the vision of upper management and the implementation of that vision into strategy by the staff. When asked if this system is still useful today and not â€Å"passà ©Ã¢â‚¬  as others have said, Kaplan responds by stating that book sales are still high and the attendance at Balanced Scorecard conferences are growing. He also sites that many countries Asia are implementing the technique in their larger organizations and he has also seen a rise of its use in many non-profit companies both here and abroad. Kaplan also believes that many companies are still struggling with getting their strategies out into practical business practice and that these companies have failed to utilize most of the non-financial metrics in their business evaluations, leaving them in the dust as far as any progress is concerned. He is currently working on another concept called a Strategy Map, which will hopefully guide companies along the process of strategy implementation. Kaplan believes that the Balanced Scorecard will be a valuable business tool for many years to come and he would like to see much more research done in the area of creating excitement and greater participation by employees to help them with the task of strategy implementation. By giving employees proper motivation he believes that any strategy can succeed, and will certainly fail without

An Urban Tourism Experience Essay Example | Topics and Well Written Essays - 3000 words

An Urban Tourism Experience - Essay Example Through the development of a narrative of the experience of being out in the field, the study uses thematic descriptions in order to define the way in which the experience of Rome can be brought into context with the modern experience. The themes that emerge in the development of the case are defined by the overall Roman culture through which an understanding leads to a sense of pride in the Italian lifestyle. A definition of urban tourism can simply be made by stating that it is tourism that has a city or cities as a destination for holiday. A more complex version of the definition, however, involves the desire to seek out other cultures and explore social meaning and context through first hand experiences. While urban tourism needs an additional amount of information in order to have real meaning, the ability to go to an urban center and taste the nature of the culture through experience can expand the understanding that one has about that locale. The culture of a city comes from the incidental and unintentional things that are encountered. The development of an urban tourism encounter is based upon the development of a conglomeration of disciplines so that the holiday creates a sense of the environment, not just the concept of the outsider who is looking in on a culture as if it were a zoo. Many travellers see the world as if it is a zoo for their observation, but not a place in which to immerse oneself in the culture of a city is to discover something more than just what can be observed. Urban tourism types of travel have the ability to create a connection to the observed culture that is based upon seeing their world through eyes that have been taught to look. Through information from outside sources, through learning a bit of the language of the city that is the focus of the travel, and through looking for aspects of the city that are not intended for the eyes of the traveller, the culture begins to emerge. 1.1 Research Questions The following research questions have been developed in order to frame the inquiry that this study has endeavoured to create: What is the cultural experience that defines the urban tourism event in Rome? What appears to be the hidden culture that the facade created for tourists has tried to dissuade tourists from observing? What are the cultural meanings that the urban tourist can readily observe within the experience of the city of Rome? What experiences in the city of Rome can become part of a profile of its identity? 2. Literature Review 2.1 Urban Tourism Buhalis and Darcy (2011, p. 123) discuss the nature of tourism by writing that â€Å"Travel involves the movement away from home with its gendered responsibilities and expectations, as well as the movement towards other worlds and possible selves experienced within a relation to difference†. The experience of immersing oneself into another culture is defined both by the lived experiences of the indigenous population, combined with the public identity of the locale that has been created through carefully cult ivated perceptions about the regions.

Customer Service- Reflection Paper Assignment Example | Topics and Well Written Essays - 250 words

Customer Service- Reflection Paper - Assignment Example My perspective on customer service centers on the immense benefits that it has on the organization. In this regard, therefore, I believe that it is essential for any organization to undertake customer service in order to equip employees with excellent customer relations qualities (Online Trainees, 2013). When I first learnt about customer service, I found some ideas quite interesting to me. One of the most interesting ideas was research; I came to learn that any customer training program has to incorporate research. This helps the organization to understand the needs of their customers. Another important idea is training; employees have to be subjected to training on a continuous basis as this helps them the needs of customers. My philosophy of customer service is based on the belief that customers are crucial in determining the success of an organization. As such, employees of the customer service department should possess the requisite knowledge on how to handle customers. As a customer service manager, I will apply the concepts of this course my job. The principles will help me manage my staff and teach them skills on how to handle customers with care. Apple can be credited as a company that provides excellent customer service. Over the years, Apple has provided customer service through an online platform that allows customers to get support from the staff. Through such a platform, customers can gain knowledge on the products offered by the company and the availability of the

Pedro Paramo Essay Example for Free

Pedro Paramo Essay The novel Pedro Paramo is about a young man who loses his mother and decides to take a journey to a ghost town called Comala to find his father, but instead dies of fear and finds out his father is dead. A central theme that runs through Juan Rulfo’s Pedro Paramo is the nature of hope and despair in a person’s life, which Rulfo demonstrates by Pedro Paramo’s love for Susana, Juan Preciado’s journey to Comala for his father, and Susana San Juan’s desire for her deceased husband. Rulfo exhibits Pedro Paramo’s hope for a future with Susana as a sometimes- ositive nature followed by the negative nature of despair he experiences from her demise. Pedro talks about how he has hoped Susana would return to him after many years of being gone since they were children: â€Å"I waited thirty years for you to return, Susana. I wanted to have it all. Not just part of it, but everything there was to have, to the point that there would be nothing left for us to want, no desire but your wishes† (Rulfo 82). Pedro has been persistent about Susana’s return after a long thirty years. He has loved for Susana since their childhood when they flew kites together, and thinks she will come to ove him upon her return. He went through all the trouble to gain power and land out of the hope that Susana would return and he could meet any request she wished. Pedro is talking to Don Fulgor about the plan to get rid of Susana’s father Bartolome San Juan: â€Å"We need it to be so. She must be left without family. We’re called on to look after those in need. You agree with that, don’t you† (Rolfo 85)? Pedro still hopes that Susana will realize she needs to return to him and come to love him. He believes that it will be easier for her to realize this once Don Fulgor as an order kills her father in the mines. Once he is alone with Susana he plans to comfort her now that her father is not with her or a distraction anymore. Pedro is miserable because Susana has just died: â€Å"I will cross my arms and Comala will die of hunger. † (Rulfo 117) Pedro is mainly portrayed as a selfish man, but not when it comes to Susana. According to Dorotea Pedro really did love Susana and wanted the best for her. When she died he lost it, he plummeted into depression and did not speak to anyone, because Susana meant the most to him. He promised vengeance on the town of Comala for not caring enough about Susana’s death. He choose to sit down and watch Comala collapse, because no money would circulate through the town since he owned all of it. The character Juan is like Pedro because he based his choice to go on a journey on a ray of hope only to fall into the shadows of despair. Rulfo displays Juan Preciado’s search for his father in Comala is based on hope of finding answers to his questions about his father, but is greeted with melancholy news. Juan’s mother Doloritas has just died and she had asked him to go to Comala and make Pedro pay them back for not being there to be a husband or father: â€Å"But before I knew it y head began to swim with dreams and my imagination took flight. Little by Little I began to build a world around a hope centered of the man called Pedro Paramo, the man who had been my mother’s husband. That was why I had come to Comala† (Rulfo 3). Juan’s mother wanted him to go to Comala to get what he deserves from Pedro and receive payback, but Juan quickly changed his mind about why he was going to Comala. Juan has never seen his father so he is quite ecstatic to see who Pedro is and what he looks like. Juan hopes that he will arrive in Comala to find his father Pedro and start a ew life for himself, and that they will develop a father and son relationship. Juan has received some disappointing information about his father from Abundio: â€Å"You were mistaken about the house. You told me the wrong place. You sent me ‘south of nowhere,’ to an abandoned village. Looking for someone who’s no longer alive† (Rulfo 8). Juan is speaking to his mother aloud out of anger about why she sent him to a ghost town to look for someone who is not alive anymore. Abundio had told Juan that Pedro was dead and that he represented ‘living bile’ to him. Juan has been stripped of any hope he had about is plans to find his father Pedro and answer any questions. Juan is dead and is in a coffin talking with Dorotea: â€Å"You’d have done better to stay home. Why did you come here? I told you that at the very beginning. I came her to find Pedro Paramo, who they say was my father. Hope brought me here† (Rulfo 60). Juan reminds Dorotea that he came to Comala to find his father mainly because he had hope. It is tragic how Juan dies out of fear and without any hope but sorrow. Juan died with despair knowing that his father Pedro was a horrible man and a dead man. Juan has lost his own life and everyone close o him, just like Susana who has lost her lover and father only to loose her own life shortly after. Rulfo demonstrates that Susana San Juan hopes to reunite with her deceased husband due to her craziness, and that once she figures out he is dead she does not know how to live without him. Susana is in her home dreaming about her deceased husband Florencio: â€Å"And what I want is his body. Naked and hot with love; boiling with desire; stroking my trembling breast and arms. My transparent body suspended from his. My lustful body held and released by his strength† (Rulfo 100-101). Upon her return to Pedro Susana persistently hopes that her dead husband will return to her. She believes this because she was driven crazy by a series of grave robbing’s with her father at a young age. She hopes for his return so much that she often has intense dreams with detailed memories of her lover. Susana is in her bed thinking about her dream she just had: â€Å"What shall I do now with my lips without his lips to cover them? What shall become of my poor lips† (Rulfo 101)? Susana has now realized that her deceased husband Florencio will never come back to life. She has suddenly lost all of her hope and is now filled with espair and fear of what will come. She never plans on being with Pedro and worries about what will happen to her lips since her deceased husband is the only one she wanted kissing her lips. Pedro is thinking about Susana in his thoughts while she is sleeping: â€Å"But what world was Susana San Juan living in? That was one of the things Pedro Paramo would never know† (Rulfo 95). Susana might live in the normal world but does not act like it, because she has crazy thoughts and dreams. Pedro will never know what is going on with Susana. She is always thinking about her dead husband because she lives in denial and is on Fantasy Island. The novel Pedro Paramo was about a young man who lost his mother and decided to take a journey to a ghost town called Comala to find his father, but instead died of fear and found out his father was dead. Juan Rulfo used the concept of the nature of hope and despair in a person’s life as a central theme for Pedro Paramo, and demonstrated it by using Pedro Paramo’s love for Susana, Juan Preciado’s journey to Comala for his father, and Susana San Juan’s desire for her past husband. Rulfo’s novel Pedro Paramo is an insightful source of how quickly a person’s hope can be taken and turned into despair.

Introduction To Social Work Practice

Introduction To Social Work Practice A referral has been made by the PSNI because they are concerned about two children aged 18 months and 4 years old following their attendance at an incident of domestic violence the previous Saturday evening. Area Child Protection Committee (ACPC,2005, 9.25) state Child protection is everyones business . Gateway teams have been established within the five Health and Social Care Trusts in Northern Ireland, to deal with all referrals both from professionals and members of the public who are concerned about a childs well being. Social work is a profession that embraces the principles of The Human Rights Act 1998(HRA). The Children Order (Northern Ireland) 1995 (Order 1995) underpins all aspects of the powers and duties of the social work mandate governed by social work law. The Northern Ireland Social Care Council (NISCC) code of practice reflect profession ethical and values which are intertwined with law, societal values and are at the heart of how workers conduct their practice. Article 66 of the Children Order places a duty on workers to investigate all allegations or suspicions of abuse likely to cause harm to a child. The Family Homes and DV (Northern Ireland) Order 1998 has been incorporated into the Children Order. Article 12 A, identifies the risk of harm to a child from witnessing DV, (Order, 1995). The social work role is to assess and intervene if a child is in need or at risk of significant harm. Article 17 of the Order defines a child in need as unlikely to achieve or maintain a reasonable standard of health or development without the provision of services by the Health and Social Services Trust or if the child is disabled (Order, 1995). Upon recite of this referral the worker must take time to tune in to the potential risks and appropriate action as a result of this information. The worker needs to contact the PSNI and clarify the details of the referral including the severity of the DV. Multi-agency working is a key function of social work in the area of child protection and fundamental to assessment of risk. Joint working protocols exist between the PSNI and workers in Northern Ireland. The lone working policies acknowledge, violence against workers is not unheard of and the PSNI will accompany the worker to enable them to carry out the initial assessment if needed. NI is a country emerging from conflict; however, stereotypical attitudes and beliefs about the PSNI and some members of the community are deep rooted. The worker needs to assess how s/he can proceed safely. According to the Order 1995, the welfare of the child is paramount. Social workers try to build positive relationships with parents and families. The Article 8 European Convention of Human Rights offers, à ¢Ã¢â€š ¬Ã‚ ¦ protection for a persons private and family life, home and correspondence from arbitrary interference by the State, (www.yourrights.org). An over authoritarian approach may serve to alienate parents but this does not mean the worker takes unnecessary risks regarding her own or others safety, (NISCC, 2004, 4.3). The social worker is obliged to screen details of the people involved against the e-information system and the child protection register (CPR), for current or previous social service involvement. Names of the children need to be entered individually; it is not uncommon for one child in a family to be registered and another not. If the family or children have had previous involvement with social services and the case is now closed the manual records need to be accessed and read. If the worker has any ambiguity about the interpretation of the information, clarity must be sought with the principal social worker or whoever is the relevant party. Workers are accountable for the quality of their work. (NISCC, 2004,6.0) At present the worker has no way of identifying the level of risk posed to these two children. DV is a contributory factor in half of all the serious case reviews and 75% of the cases on the child protection register. (Hester, et al.1998). When all background information is gathered the worker needs to communicate her findings both in writing and verbally to the supervisor/team leader/manager, whom in turn has ultimate responsibility for prioritising the referral based on the available information. Failure to follow the risk assessment policies and procedures and effectively use information can have fatal consequences for the service user. If this referral was to result in a child/ren getting harmed the social work could be held personally culpable. Ignorance is not an excuse, (Stafford and Hardy 1996 cited Calder, 2003, p.8). Brearley, 1982, suggests risk is calculated by the likelihood of the variation of possible outcomes Past knowledge provides a reasonable basis for prediction of harm. Stafford and Hardy (1996 cited Calder, 2002, p.8.) The Children Order, Cooperating to Safeguard Children, 2003 and Our Children and Young People Our Shared Responsibility, 2006-2016 expresses the need for workers and all professionals to communicate. Partnership recognises the expertise of other professionals and agencies, including the parents when it comes to the protection of children. (NISCC, 2004,6.7) The ACPC policy states a child must be seen and spoken to by the worker within 24 hours and that an initial assessment of need is completed within 7 working days of receiving the referral (ACPC,2005,para 9.25). The worker will undertake the initial assessment with the family. Milner and O Byrne (2002) describe social work as a goal directed activity. The worker needs to know the possible impact of DV on the health and development of children this age and be able to recognise the signs and symptoms of abuse. The NISCC code of practice states a worker needs to adequately prepare and plan all aspects of work, (NISCC, 2004 6.4). According to Parker and Bradley, (2003) assessment is a balance between art and science. There are no scientific tools, which can predict human behaviour or eliminate risks totally. Social work training and education equip social workers with the knowledge and skills to practice. (NISCC, 2004) The social work profession is grounded in the humanistic principles before any direct interaction takes place the worker needs to reflect on what the serious nature of what she is intending to do. In the area of child protection there is a considerable power imbalance between the worker and service user. The worker is effectively calling the competency of the parents into question. Workers could expect parents to be less than welcoming. It is hardly surprising given the invasiveness and instructiveness of the investigative role of child protection. People may feel intimidated and fearful that their children might be taken into care. This can result in hostility, anger and resentment towards the worker. (Adams, et al, 2009 p224). According to Farmer and Owen, (1995) Mullender, (1996) and (Mc Williams and Mc Kiernan (1995), DV is always about power and control. Their research is overwhelmingly based on male to female abuse but they do acknowledge the existence of violence against men and reciprocal violence. The worker needs to be consciously aware of this and respect the marginalized and vulnerable position of victim and abuser of DV. The worker needs to modify her own practice to address these issues sensitively and in a manner that will not further the oppression of the victim. Various trains of thought exist as to whether empathy is a character trait or a learned skill that develops through continuous practice but it is crucial that the worker understand the importance of the perspective of the service user. Schulman 1984(cited in Cournoyer. p.22) states, Preparatory empathy involves putting yourself in the clients shoes and trying to view the world through their eyes. Beckett and Maynard (2005) believe in the name of respect, parents have a right to know why their family is being investigated and why the worker wants to see and speak to their children. Informing the parents of their rights, including their right to complain, taking time to explain the investigation process and taking time to actively listen to parents and encouraging them to express their views will at least go in some way to upholding public trust and confidence in the social work profession. The involvement of the gateway worker will be time limited. If this family need further intervention the gateway worker needs to set the precedence for further social work involvement. If a family have a negative experience of one social worker they are likely to perceive all social workers to behave the same. Cleaver, et al (1995) stresses the need for the worker to be open and honest from the start of the process, if any trust is to be established. Much of the assessment relies on participation of the parent, without which the worker will have great difficulty making an accurate assessment and as a result the children or the family may not get the support they need and the appropriate intervention to either meet their needs or keep them safe. (Parker and Bradley, 2003) In the spirit of social justice and ethical practice holding the balance between the safety of the children, the importance of family life to a child and the need to avoid unnecessary interference underpins every part of the Childrens Order as it applies in practice (Children Order, 1995). Professional ethics requires the worker to critical reflect at every stage of the process in order to think logically and make sense of what is happening. Awareness of their own prejudices and discriminatory attitudes and a willingness to challenge them means the worker can begin to approach this family in a genuine and anti oppressive manner. According to Preston-Shoot and Agass (1990, p38) reactions can be determined by the workers own personal history and current emotional experiences. A worker who has grown up in a home where DV has been an issue may have very different feelings compared to a social worker who has never had personal experience of DV. Workers have a professional duty under the NISCC codes of practices and in the interests of social justice not to just maintain but promote the dignity and worth of all services users. Banks (2006, p3) states, Professional values need to distinguish between personal values. If the worker has concerns she can explore them through supervision either with her team or senior. Pauline Hardiker has developed the single assessment framework tool for assessing the needs of children-Understanding Needs of Children in Northern Ireland (UNOCINI) tool. The UNOCINI adopts an holistic view to assessing the needs of children. It has three interlinked areas of assessment. The needs of the child, the capacity of their parents to meet their needs and the wider family and environmental factors, such as employment and housing issues are assessed as having an impact the childs life and well being. Our Young People Our Shared Responsibility, 2006-2016 is the Governments Ten Year Strategys pledge, which reflects the prevention through early intervention social policy ethos and parental responsibility and partnership principles of the Children Order are fundamental to the UNOCINI. Social workers have an ethical commitment, to promote social justice and equality to support parents in need, to bring up their children. The aim is early identification of need, purposeful intervention, with the objective of preventing difficulties escalating and promoting the strengths and resilience of the family. Threshold of needs correspond with risk. The thinking behind this is to promote a shared understanding between professionals to identify concerns, risk, needs and strengths, particularly in the area of communication. DV is cited in threshold three of needs, (DHSSPSNI, 2007). Mullender et al, (2004) believes children face three risks: the risk of observing traumatic events, the risk of being abused themselves, and the risk of being neglected. Jean Paiget (1896-1980) is instrumental in constructing the idea that healthy children develop through a serious of ordered sequences, known as milestones. No two children will follow exactly the same pattern but it would be reasonable to expect that a child of 18 months would be starting to talk, walk and explore their environment. A 4-year-old would be able to walk, talk in sentences, and be out of nappies. Osofsky, (2004,p4) stresses, Trauma due to domestic violence interferes with a childs development. Mullender et al (2004) whilst agreeing with Osofsky suggests that protective factors, such as a supportive not violent adult, a placid temperament and the childs young age and lack of ability to full appreciate what is happening might help reduce the risks to children. She does point out that each child is different and will respond differently. Professional ethics and values of the social work profession emphases the need to treat each child as an individual (NISCC, 2004, 1.1). The key factors in the parenting and child domain are basic care, ensuring safety, emotional warmth, stimulation, guidance and boundaries and stability. (Howarth, 2004,p24) A report by Davenport in 1984 cited in Howarth (2004) discovered DV has a very negative impact on the mental health of the victim. Parents are more likely to respond with irritability and anger or fail to respond at all, rendering them emotionally unavailable to their children. Attachment theory believes that if a childs primary attachment is damaged in the first or second year of their life they are at significantly increased risk of developing problems later in life. Fahlberg (1991, p.64) states The primary task to be accomplished during the first year of life is for the baby to develop trust in others and à ¢Ã¢â€š ¬Ã‚ ¦ explore their environmentà ¢Ã¢â€š ¬Ã‚ ¦ children growing up in a violent household may be too frightened to show inquisitiveness. Humphreys et al (2006) explored the emotional turmoil of children drawn into participating in the violence leaving the child confused and afraid and the parent undermined as a valued human being in their own eyes and the in the eyes of the child. Humphreys has also drawn attention presumed attitudes that expect all mothers to love their children and treat them the same. The child that looks like the abuser or the child that is born as a result of rape may be more vulnerable to harm than the child who is none of these things. Maslows higher hierarchy of needs believes that a child needs to feel safe and have a sense of belongingness within their family if they are to achieve their full potential, (Hoghughi and Long, 2004). Without this they are unlikely to achieve their full potential. Smale and Tuson, (1993 cited Coulshed and Orme 1998) recommend the exchange model where all people are seen as experts on their own problems and the emphasis is on the exchange of information rather than the worker being the expert. Listening is a core skill of any communication process. Social workers have been ridiculed in the past for their know it all approach, often leaving families stigmatised and traumatised because of their investigations but without any purposeful intervention. Lord Lamming (Laming report, 2003 cited in Wilson and James, 2008, p.254) following the death of Victoria Climbe, is clear that the aim of communication with children or about children is to gain a comprehensive understanding of a day in the life of a child. Children may engage through play. The worker could ask the child what TV programmes they watch or who makes dinner or puts them to bed. DV is not just about controlling people it involves controlling the household movements. The social worker needs to maintain vigilance for any visible signs of injury and needs to ask the child what happened. Workers should engage parents at every stage of the process. The worker needs to ask the parents permission to share and collate the information; however, regardless if they agree or not the information will need to be shared in the interest of child protection. All social work involvement needs to be proportionate to the age and developmental needs of the children and the nature and severity of the risks, concerns and strengths of the individual child and their respective family. Farmer and Owen, (1995, p79) has highlighted that in the face of allegations couples often from a defensive alliance against outside agencies. They may have conflicting and confusing feelings of love and hate towards each other. Thompson,(2006) advised couples often have multiple truths of events and experiences. This advises the worker not to be drawn into giving personal judgements or opinions. Thompson,(2006) focuses on the personal, cultural and structural model of oppression, (PCS) which might explain why women do not leave. Dobash and Dobash, (1979 cited in Cleaver, 1999) suggest that on a personal level women feel shame and guilt; they know their children are affected and they dont report DV or seek support because they fear they will not be believed or that they may be killed for reporting it. The impact of violence can lead to the woman feeling worthless and isolated. Culturally women are brought up from childhood to be caretakers, to comfort others and as a result of this they may believe that they are responsible for the abusers attacks, if they were a better wife, mother, cook, and then the violence would stop. The patriarchal nature of society often sees many women dependant for finance on a man. Thompson (2006) remarks, bring a child up in poverty is not impossible but it is hard. Structurally, the lack of affordable housing and a lack of confidence in the legal system are barriers that prevent women from leaving an abusive partner. Family Homes and DV (Northern Ireland) Order 1998,Article 29 gives courts the power to remove an suspected abuser from the family home instead of removing the children. (Children Order, 1995) but this does not guarantee safety. The new Government have warned of social welfare cut backs; the worker has to balance the needs of the family against available scarce recourses. Banks (2003 p101) states, a worker needs to be able to challenge agency policies and practicesà ¢Ã¢â€š ¬Ã‚ ¦Professional code of ethics along with education will have a role to play in this. A worker needs time to complete an accurate assessment. Heavy caseloads and a lack of resources have contributed to failure to protect in the past. Empowerment is about actively finding ways that the victim can make use of intervention to help themselves move towards the survivor role and care and their children without the support of the state. Conclusion Accurate, precise recording are vitally important to child protection and helps build the picture of childrens lives. The risks and strengths posed to them will provide the basis for shared understanding, analysis, decision-making and plans about the children and their family. The social worker on the Gateway team is responsible for drawing all the strands of information together. Health visitors, GP, PSNI, extended family all hold key pieces of information that could protect these children. The Gateway team is responsible for convening the initial case conference. All stakeholders need to contribute. Similar treads of poor communication, lack of interagency working and inaccurate recording, has consistently reappeared throughout Serious Case Reviews. In 1973 Maria Colwell aged 7 was beaten to death by her stepfather. In 2007 Arthur Mc Enhill set fire to his home killing his whole family, 7 in total and the same year 17month old Peter Connolly died after suffering horrific abuse. Domestic violence was a key feature in all of these tragedies. Pemberton, (2010, p17) advises, Patterns in social history and behaviour can be detected and something, which may appear insignificant in isolation, can be identified as a key warning sign in context Word Count: 3244