Laboratory Techniques And Measurements Essay Examples

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Data Analysis And Experimental Uncertainty

1159 words - 5 pages laboratory reports never list misreading the instrument or getting the wrong units as a source of uncertainty! The Mean, Standard Deviation, and Standard Deviation of the Mean Random uncertainty is often associated with the concept of standard deviation. This is best il- lustrated by an example. Suppose ten students each measure the diameter of a steel ball with a micrometer caliper. For a variety of reasons we do not expect all the measurements to be identical. The sources of error include: • some students tighten the micrometer caliper more than others. • the steel ball may not be perfectly round. 2• some students may not exercise care to be sure they are measuring a "great VIEW DOCUMENT
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Operations Performance Analysis

1694 words - 7 pages addressing performance metrics and organizational performance. The first simulation focused on the needs of the University of Santagreen (UoS) and the other focused on Thistle Woods Hospital. This paper will address the indicators of each organization, metrics used for measurements, established standards for measurements, impact of systems thinking and the impact of enhancements on other parts of the organizations. Let us look at each area and how each organization measured up during the simulation.Performance IndicatorsPerformance indicators are measurements to quantify business goals VIEW DOCUMENT
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Jensen's, Gardner's, and Sternberg's theories of applications in measurement of general mental ability in the workplace.

857 words - 3 pages same person" (Jensen, 1998, p. 19).As a construct, the g factor can be represented with varying degrees of convenience, efficiency, and validity by a wide variety of vehicles (psychometric tests, laboratory techniques, physiological indices) (Jensen, 1998).To obtain what Jensen (1998) called the information-processing speed of the brain, you use a device that contains a black button surrounded by a semicircle of eight white buttons. The person being tested sits with her hand on the button box. She presses the black button on the box and waits for a beep; then, after a short but unpredictable interval VIEW DOCUMENT
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Animal Testing Essay

1017 words - 4 pages feasibility and the benefits of maintaining animals in natural habitats. (Bayne) Along with healthy environments the animals used for testing are tested under the three R’s. The three R’s stand for Refinement, Reduction, and Replacement. These three principles are used to regulate the testing of laboratory animals by reducing the number of animals used, refine the testing methods used, and replace tests that require living animals with non-animal techniques. (Three R’s) Today any test on a living animal that could cause it pain would require an anaesthic or painkiller to be given to the animal. This is insures that the animals are not suffering when these tests are done. Another thing to VIEW DOCUMENT
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Introduction to measurement Essay

1754 words - 7 pages AbstractSuccess in lab depends on how students can make precise observations, measurements and write data. This experiment was aimed to make students get acquainted with mass and volume measurement. Five 150-ml beakers, a volumetric pipette, the graduated cylinder were tested in a different measures design to determine variation in mass and in volume. Also the experiment included the first-hand view of volume additives on example of volumes of acetone and water in different ratios. This experiment helped students to develop skills of measurement. The objectives of this laboratory were to acquaint with mass, volume measurement, also to learn to use laboratory equipment, notebook VIEW DOCUMENT
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Alphone Bertillon's System Essay

1304 words - 5 pages distorted their faces while being photographed to disguise their appearance. Bertillon had a general understanding of the anthropological statistics and anthropometric techniques from the work of his father (bookrags.com). This was in the most basic sense the study of human statistics and the measurements and proportions of the human body. Bertillon was soon able to devise a system of identification of criminals which relied on 11 bodily measurements as well as the color of the eyes, hair, and skin. He also added standardized photographs of the criminals to his anthropometric data. (http://www.nleomf.org/) Bertillon believed that if several body measurements were taken and recorded the VIEW DOCUMENT
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The Impact of the Laboratory on Nineteenth-Century Medicine?

1598 words - 6 pages otherwise. With the emergence of the laboratory information from blood and urine could be tested and analysed to provide more subsistence to diagnosis. Temperature could be measured with the development of the thermometer and the breathing of a patient by the creation of the spirometer. The development of these apparatus allowed diagnosis and practice to be improved and to aid physicians in more solid diagnosis and symptoms wwere no longer diagnosed by characteristics. Even though small laboratory classes allowed students to learn new techniques and observe experiments. An 1864 picture (Book 2, p.94, fig 4.1) of a chemistry laboratory in Glasgow shows a small laboratory where students VIEW DOCUMENT
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Improving the Accuracy of Satellite-Derived Data

810 words - 3 pages the photodiode array spectrometer has to be evaluated. Correction for any inconsistency between laboratory and in-the-field measurements should be provided 6- Identify the temperature of the blackbody at the photodiode array spectrometer can be calibrated and develop a system to calibrate the spectrometer against it. 7- Develop the helicopter-based system and identify the supporting equipment that can be used a long with photodiode array instrument. These are required to include an imaging camera, and a global positioning system, so the spectral and imaging characteristics of the site can be presented along with its spatial information. VIEW DOCUMENT
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Cell volume lab Essay

536 words - 2 pages then we pressed "take reading". We inserted the concentration of distilled water in the table as 0mosm.We opened the program for laboratory 2. We placed the probe in one of the 12 solutions. We started recording by activating the start button. We continued recording until the readings are stable then we clicked the "stop" button. We used the "smart tool" to read the condutivity value and then we entered the data in the table.We removed the conductivity sensor from the beaker and then we shaked the sensor off. We made similar measurements of the remaining 12 NaCl solutions, and then we entered the data into the data table in the row labeled conductivity. We saved VIEW DOCUMENT
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Should Animals be used in invasive Laboratory techniques in psychological research

1525 words - 6 pages involved in experiments such as insight into problems. They would be presented with a problem that had a solution and where then observed as to how they would solve these problems. This experiment was conducted to study sudden insight into problem solutions (Morris & Maisto, 2001).There are strict guidelines that control the treatment of animals in invasive laboratory techniques. Psychologists using animals in research must ensure that "Appropriate consideration of (the animal's) comfort, health and humane treatment"(p.38). Further under these guidelines, animals may not be subjected to "pain, stress or privation" when an alternative procedure is available (APA, 1992; Morris &amp VIEW DOCUMENT
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Chemistry of the Stratosphere

995 words - 4 pages There are several techniques used to investigate the chemistry of thestratosphere. The first of these is monitoring which involvesanalysing the air using spectroscopy. Given that ozone absorbs in theinfra-red and ultra-violet regions of the spectrum, the concentrationon ozone in a sample can be calculated form the strength of itsabsorption (figure1). This has to be carried out at different timesand in different conditions to ensure any decrease is not due tonatural fluctuations.[IMAGE]Figure 1 - Ozone Distribution in the AtmosphereOnce the molecules present in the stratosphere are identified,laboratory measurements can be carried out to investigate thereactivity of the molecules VIEW DOCUMENT
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Biology: Separation of Proteins

1150 words - 5 pages a basis from which a detailed study of proteins is possible. Following our procedure we were successfully able to set up a quantifying assay to determine the amount of protein within a milk sample, although our yield percentage was rather low. However, errors in this lab (in the form of a low yield percentage) may have an origin from our last lab. In the process of extracting proteins from the milk sample, we may have inadvertently lost some of the protein through erroneous measurements, or perhaps through poor handling of either ammonium sulfate or the dialysis tubing. While not sufficient enough (at this point) to invalidate our results, they do explain the major difference between the expected and the actual amount of protein extracted. References: Laboratory Manual: Biological Sciences 112, University of California Department of Biological Sciences, Fall 2001. Campbell, N. A., Reece, J. B., & Mitchell, L. G. Biology: Fifth Edition. Addison Wesley Longman, Inc. Menlo Park, 1999. VIEW DOCUMENT
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Falsifiabiliyt Paper

537 words - 2 pages FALSIFIABILITY PAPER � PAGE \* MERGEFORMAT �1� Falsifiability PaperSociological researchers take the data that is accumulated during testing to analyze it in order to study their hypothesis. There are four common techniques used during sociological testing such as the observational study, the case study, the survey, and the experiment. One scientific method, also known as an experiment, is used to compare the facts, data, and information provided after testing, by using either dependent variables in an opened atmosphere or independent variables in a closed atmosphere.The two different styles of experimenting are known as field VIEW DOCUMENT
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Forensic science.

2904 words - 12 pages victim or a crime scene, is important physical evidence. Richard Saferstein explains, Physical evidence encompasses any and all objects that can establish that a crime has been committed or can provide a link between a crime scene and its victim or a crime and its perpetrator (31). I will now explain the appropriate techniques and ways a crime scene and physical evidence should be handled and examined.One of the first things an officer should do once he gets to the crime scene is to take control and secure the scene as quickly as possible. This is to prevent anyone from ruining evidence and to keep unauthorized VIEW DOCUMENT
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Forensic Science

3430 words - 14 pages checked. Anything, which can be used to connect a victim to a suspect or a suspect to a victim or a crime scene, is important physical evidence. Richard Saferstein explains, Physical evidence encompasses any and all objects that can establish that a crime has been committed or can provide a link between a crime scene and its victim or a crime and its perpetrator (31). I will now explain the appropriate techniques and ways a crime scene and physical evidence should be handled and examined. One of the first things an officer should do once he gets to the crime scene is to take control and secure the scene as quickly as possible. This is to prevent anyone VIEW DOCUMENT
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Forensic Science

2690 words - 11 pages direct area in which a victim or actual crime has occurred, butthe possibility of escape or access routes should also be checked. Anything,which can be used to connect a victim to a suspect or a suspect to a victim or acrime scene, is important physical evidence. Richard Saferstein explains,Physical evidence encompasses any and all objects that can establish that acrime has been committed or can provide a link between a crime scene and itsvictim or a crime and its perpetrator (31). I will now explain the appropriatetechniques and ways a crime scene and physical evidence VIEW DOCUMENT
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Accurately Predicting the Focal Length For Four Lens Systems

1786 words - 7 pages of 3.0%, a fractional error of 0.65%, and a discrepancy of 4.5σ. The compound lens system yielded a final image distance of 0.093 m for 0.1 m separation and a final image distance of 0.048 m for 0.2 m separation. The percent errors were 0.3% and 8.0% respectively. The unknown lens had a measured focal length of 0.14 m, a 7.7% percent error from the known value of 0.13 m. Systematic error within each of the experimental procedures could of arisen from subjectivity of the displayed image’s focus or lens damage in the form of scratches. However, the preciseness of the experimental measurements indicates that perhaps the manufacturer or the lenses misreported the focal length of the lens VIEW DOCUMENT
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Operation management

2051 words - 8 pages normal and abnormal values are performed and logged.4.1 What went wrong:But with all these techniques and precautions a problem raised when physicians in clinic send faulty test requisitions that lead results to be reported under wrong patient.4.2 Implementation of TQM:With this problem a group of Clinical Laboratory Staff including QC/QI coordinator made a TQM team to know why and what to do to reduce this.Implementation steps.Develop greater leadership support for an organization wide program.Train and involve more staff in monitoring and improvement activates.Set clear way of monitoring.Base decisions on indicator date and make VIEW DOCUMENT
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Quantum Limited Particle Sensing in Optical Tweezers

691 words - 3 pages led to a more complete biophysical understanding of the kinetics of molecular motors \cite{spudich, mehta, rosenfeld, spudich-cell, valentine, schnitzer, spudich-myosin6, bryant, dunn, okten, purcell, spudichrock} - a quintessential demonstration of new physical techniques yielding new insights into biology. Beam position and momentum sensing is particularly crucial for particle sensing in optical tweezers enabling high-precision particle position and force measurements \cite{langblock, gittes, pralle}. Therefore it is important that such measurements are performed optimally to achieve the highest measurement efficacy. Recently, Hsu {\it et al.} \cite{HsuJOB} showed that the conventional VIEW DOCUMENT
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Psychological Tests

2527 words - 10 pages Museum) where, for a small fee, people could have themselves measured on a number of physical and psychological attributes. He tried to relate intellectual ability to skills such as reaction time, sensitivity to physical stimuli, and body proportions. For example, he measured the highest and lowest pitch a person could hear and how well a person could detect minute differences between weights, colors, smells, and other physical stimuli. Despite the crude nature of his measurements, Galton was a pioneer in the study of individual differences. His work helped develop statistical concepts and techniques still in use today. He also was the first to advance the idea that intelligence can be VIEW DOCUMENT
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Structural Identification Of Unreinforced Masonry Structures

1857 words - 7 pages Olympic venues in China [2]. Several techniques can be used to carry out SHM; Structural Identification (St-Id) is one in which a great amount of research has been conducted lately. It is attractive because it makes it possible to reduce the gap between the constructed structural systems and their structural design models. The focus of this research is the application of Structural Identification (St-Id) to unreinforced masonry structures for SHM purposes.   The Structural Identification Paradigm Structural Identification (St-Id) is a developing area of Structural Engineering that has the potential to resolve a number of the issues pertaining to the maintenance of existing structures. The VIEW DOCUMENT
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Quality Management Organizations

541 words - 2 pages agency under the U.S. Department of Commerce. The NIST operates in several different fields and acts as a quality barometer especially in the area of weights and measurements (nist, 2014). NIST assists U.S organizations achieve excellence in quality by offering participation in the Baldridge Performance Excellence Program, calibration services, National Voluntary Laboratory Accreditation Program, and the NIST Quality System (nist, 2014). Each one of these programs is designed to aid U.S Organizations in achieving the highest levels of VIEW DOCUMENT
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Fracture and Fatigue of Amorphous Metals

2587 words - 10 pages rearrange into their preferred lower energy state and the result is a microstructure shown in Figure 1.1 b. This random atomic microstructure is also higher in energy than the crystalline form, as is clearly highlighted in Figure 1.1 c. It was discovered in the 1960s by Duwez et al. [8] that it was technically possible to cool a metal, in this case AuSi, rapidly enough to form a metallic glass. This, of course, sparked much interest in the possibility of producing other metallic glasses from different compounds. Early candidates typically required extremely high cooling rates and as a result special cooling techniques were developed. These cooling methods typically resulted in “splattered” or VIEW DOCUMENT
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Nissan VSS-From-Instrument Cluster Investigation

1743 words - 7 pages alternate installation was required where the installer attached a magnet package to the drive shaft of the vehicle to provide VSS and then used the 4024 E-Cruise I PCB. Rostra’s technicians report that module replacement was usually effective and magnet packs were used in persistent trouble cases. Next, two recently returned units were inspected by A.Morrison (Laboratory – Rostra) and E.Atkinson (Quality – Rostra); both units malfunctioned during in-vehicle testing. One unit would not function at all, and the other would have erratic unintended accelerations. Subsequently, an audit was performed by Rostra’s technicians and engineering on 10 units in stock; there was a 50% malfunction rate VIEW DOCUMENT
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The Function of Pharmacokinetics

1057 words - 4 pages different parts of an organism that have been isolated or grown in the laboratory settings. This method of study will help us to find the specific analysis than can be done with whole organisms The question that rises in this essay is how we describe a new approach to enumerate in vivo activities by simulating pharmacokinetic factors in vitro. The general approach to this question has to cover three specific areas. The areas are in vivo measurement of the drug therapeutic and toxic effects. Then we need to measure those effects by using pharmacokinetics measurements at the specific site of the body. At the end we need to use pharmacokinetic simulation of the time versus drug concentration VIEW DOCUMENT
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Light Intensity

942 words - 4 pages By looking at Table A in the microscopic light results, it can be seen that the results would obey the inverse square law. This was because as the distance increases the light intensity of the microscopic light decreases. The graphs that demonstrate the inverse square law can be seen in figure 1 and 3. Thus, it is evident that the relationship between light intensity varies inversely with the square of the distance holds truth in real-life situations and or under laboratory conditions. The reason for this was because figure 1 was tested in the dark room (under laboratory) whilst figure 3 was tested with other sources of lights (real-life situation) such as sunlight. Therefore, the results VIEW DOCUMENT
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Osseous surgey for crown lenghtening.a 6 month clinical study

5601 words - 22 pages : Twenty-five patients requiring crown length- ening of 43 teeth were included in this study. Clinical indices recorded at eight sites on each molar and six sites on each premolar included plaque, bleeding on probing, probing depth, and relative attachment level from a cus- tomized probing stent. Surgical measurements at the same sites included the distance from stent to alveolar bone both before and after osseous surgery and the dis- tance from flap margin to alveolar bone after suturing. Clinical measurements were repeated at 1, 3, and 6 months after surgery. Sites were divided into three groups. All sites on teeth targeted for crown lengthening were labeled treated sites (TT VIEW DOCUMENT
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The change in enthalpy for the combustion of magnesium metal

1139 words - 5 pages measurements, mathematical mistakes, incomplete reactions, poor heat collection, incorrect recording of data, and poorly calibrated tools. To avoid such error one should label all materials, check each tool before use, take extra care in reading and recording of measurements, double check all calculations, and most of all be patient, labs take time and a rushed procedure leads to inaccurate data and incorrect analysis. Sources Cited Cartwright, H.(last revised 2002, November 5). Chemical and other Safety Information. The Physical and Theoretical Chemistry Laboratory, Oxford University. [online]. (accessed 2002, December, 4) LeMay, H.E.,Beall, H., Roblee, K.M., and Brower, D.C. (1996).Chemistry: Connections to our changing world, Laboratory Manual. Upper Saddle River, NJ: Prentice Hall. VIEW DOCUMENT
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Measurement of Time Spent Communicating.

547 words - 2 pages The amount of time we spend communicating is outstanding. There have been multiple studies to find the actual amount of our waking lives spent communicating, and the percentage of time we spend in each division of communication. The article, "Measurement of Time Spent Communicating," is the result of a communication study of employees of a research and development laboratory. The study was based on two techniques: direct observation, and questionnaires. How much time do people spend VIEW DOCUMENT
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Research methods in Psychology.

1927 words - 8 pages scientific knowledgeScientific methodsScientific means "the research METHOD used to collect the data are:* Unbiased (do not favor one hypothesis over another)* Reliable (other qualified people can repeat the observation and obtain the same result).We discuss two methods Quantitative and Qualitative.Experiments.Most powerful scientific method:They provide the strongest tests of hypotheses about CAUSE & EFFECTSThe investigator carefully CONTROLS conditions - often in a laboratory - and takes MEASUREMENTS in order to discover CASUAL RELATIONSHIPS among VIEW DOCUMENT
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Physiology of the Circulatory System AP Biology

1246 words - 5 pages the stethoscope directly below the cuff in the bend of the elbow. The close the valve on the sphymomameter and inflate the cuff to 200 mmHg. Slowly release air, listening to the pulse. The first pulse heard is the Systolic pressure. Continue to release air. When a clear thumping sound grows louder then fades, that is the Diastolic pressure. Repeat the measurement two more times.In laboratory 10B record all measurements taken. Use the tables throughout Laboratory 10B to determine the individual fitness level ratings. First measure your blood pressure after reclining for five minutes VIEW DOCUMENT
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Adiponectin: a Novel Indicator of Malnutrition and Inflammation in Hemodialysis Patients.

2384 words - 10 pages patients (36 women & 44 men) gave their informed consent to participate in this study. This study was done in accordance with the Declaration of Helsinki and Good Clinical Practice guidelines and was approved by Ethical Committee of Shiraz University of Medical Sciences. All enrolled patients were hemodialyzed three times a week for 3 hours using low flux dialyzer with polysulfone/polyamide membranes and reverse osmosis purified water and bicarbonate containing dialysate. Biochemical Measurements In all hemodialysis patients, blood samples were taken after a long dialysis-free weekend interval before the next hemodialysis treatment. Serum levels of adiponectin, homocysteine, high sensitive VIEW DOCUMENT
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Regulatory Issues Impacting Development of an Emergency Preparedness and Management Plan

1744 words - 7 pages agencies in the case of a select agent or alleged plague. Special procedure should be established for laboratory personnel handling the suspected select agents. Proper techniques and equipment must be used by the laboratory technicians while testing or handling the samples (USDA NVSL diagnostic testing, 2010). As regards to select agents being transported from the facility to a confirmatory laboratory, such as the State Health Department or even the CDC, specific regulations must be followed as mandated by the United States Department of Transportation (DOT). Title 49: Transportation § 173.196 Category A Infectious Substances must be followed in accordance with the shipment of a Category A VIEW DOCUMENT
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Radio-frequency Plasmas

845 words - 3 pages measured using the technique of laser Thomson scattering. It was found that the distribution functions changed from a bi-Maxwellian at lower pressures to a single Maxwellian at higher pressures. These measurements provide independent confirmation of probe measurements made in similar discharges. The electron temperature and density of the cold group of electrons were measured with an accuracy of better than 10%. © 2001 American Institute of Physics.@DOI: 10.1063/1.1363695# Low pressure capacitively coupled radio-frequency ~rf! discharges are used widely in industrial applications, such as material processing for microelectronics. Measurement of the electron energy distribution VIEW DOCUMENT
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The Mystery of the Pyramids

5114 words - 20 pages these questions that will be examined so that we can gain a better understanding of why such seemingly enormous undertakings of pyramid construction were ever carried out. Why do some believe that the Great Pyramid (or the pyramid of the pharaoh Khufu or Cheops) at Ghiza was designed with clear mathematical links between the Pyramid's dimensions and the Earth's basic geophysical data and orbital astronomy? In 1865 Piazzi Smyth measured the Great Pyramid and synthesized many of John Taylor's ideas and theories presented in 1859 in The Great Pyramid, Why was It Built and Who Built It into his own theories (filling 600 pages of calculations) grounded in his measurements about extraordinary VIEW DOCUMENT
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Theory X

2035 words - 8 pages Y 1 42 32 Experimental problem solving I 1 6 24 Introductory Physics I 1 30 24 Introductory Pysics M 1 36 24 20 Modern Physics M 1 36 25 Wave Physics Y 2 18 22 10 Electromagnetic field theory Y Y 2 36 40 Electromagnetic field theory I I 3 26 18 Electromagnetism D 2 28 20 Engineering Mechanics D D 2 44 26 4 Modern Physics I 3 36 Thermodynamics and Statistical Mechanics Y 3 30 18 Modern Physics Y Y 3 42 34 Specialized courses, mainly aimed at the profiles "Applied Physics" and "Physical Electronics".Year Lecture Lesson Labwork hours hours hours Physical laboratory work, advanced course Y 4 12 84 Analytical Methods in Material Science Y 4 72 Mathematical Methods in Physics Y 4 48 VIEW DOCUMENT
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localization

1551 words - 6 pages are evaluated to establish causality within a credible confidence range.Descriptive research measures the sample at a moment in time and simply describes the sample's demography. Although this is not seen as a statistically robust or difficult exercise, a good description of the variables helps the researcher evaluate the statistical output in the proper context.�Some researchers think that quantitative research is better than qualitative research at establishing causality because of the precise measurements and controlled environment of experiments; however qualitative studies can also be used to establish causality but with less external validity. Laboratory experiments VIEW DOCUMENT
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paper

1257 words - 5 pages mistakenly labeled as a wash cloth). Training and education on the importance of these methods help reduce the possibility of contamination when performed correctly and maintain reliability of the evidence. The use of proficiency testing and audits will reduce the risk of contamination between sample and standards, reduce error rates and take corrective action for any discrepancies or mishaps including the evidence. Through proper training, evidence testing by a second individual and proper quality assurance and quality control techniques, a laboratory will lessen error rates found in biological samples therefore reducing the amount of false convictions that occur. 3 Guidelines and VIEW DOCUMENT
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Counterproductive Workplace Competition Part II: Problem Analysis Paper

522 words - 2 pages AbstractIt is important to frame a problem that you are attempting to solve in order to provide clear and concise understanding of the problem and its symptoms. By framing, or identifying the problem, we are better able to distinguish the symptoms, create multiple choices for solutions, and define measurements of success in problem resolution. By answering several key questions surrounding the problem, Team B will offer measurements to determine if problem is solved, a possible solution to the problem, and alternate options for problem solving. Our information comes from work experience and internet research.Counterproductive Workplace CompetitionPart II: VIEW DOCUMENT
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Usefulness and Reliability of Information Provided By Corporations

1685 words - 7 pages disclosures I have a better understanding of the importance of fair value. SFAS No. 157 addresses the need for guidance, priority, and disclosures needed in order to improve the decision making for users about the entity's financial position (Ryan, 2008). The fair value hierarchy mentioned in SFAS No. 157 prioritizes the data companies use for measuring fair value. Last, the disclosures give users the details of the measurements, valuation techniques used, and methods used to calculate the fair value. In conclusion, I agree with SFAS No. 157 emphasis on valuing assets or liabilities at fair value, because historical cost does not account for the change in value whether it be positive or VIEW DOCUMENT
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Geological Investigation

1322 words - 5 pages Geological investigation is the first step towards the completion of a building and is considered as the most important step as it identifies the feasibility of an area for construction and determines how the foundations and preventive measurements to be set up for the building. According to Sadhi (2012), one-third of the construction projects are delayed and half of over-tender cost on road projects are due to inadequate geological investigation or poor interpretation of the data. According to Ferrer Geological Consulting (n.d.), geological investigation is mandatory to ensure an adequate design of maximum safety concern and optimum economy benefit to be made and saving on the geological VIEW DOCUMENT
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The History of physics.

1326 words - 5 pages geometry and is said to have correctly predicted an eclipse of the sun. Many of his studies were in astronomy but he also observed static electricity. Phythogoras was a Greek philosopher. He discovered simple numerical ratios relating the musical tones of major consonances, to the length of the strings used in sounding them. The Pythagorean theorem was named after him, although this fundamental statements of deductive geometry was most likely first an idea from Egyptian methods of measurements. With the help of his followers he discovered that the earth was a sphere, but he did not believe it revolved around the sun. Democritus was the leader of a group called Atomists. Although they were unable VIEW DOCUMENT
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Carbon Emissions and Socioeconomic Issues

756 words - 3 pages forces to tackle identity crimes and criminals without greater success as rise in number of complex crimes and criminals have produced new challenges such as rise in the financial burden to individuals and society and for these reasons any approach to the concerns required more intense studies and investigations in the nature of the more recent project called ‘Super-Identity’ or 'SID' proposed by a team of international researchers who represent University of Southampton, Bath, Dundee, Kent, Leicester, Oxford, and Pacific Northwest National Laboratory (USA). The project promises to find completely new and innovative solutions with a different approach that guarantees protection of personal VIEW DOCUMENT
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AN EXPERIMENT TO FIND THE ACOUSTIC IMPEDANCE OF PARAFFIN AND WATER

1905 words - 8 pages obtained for the acoustic impedance will be used to find the reflection coefficient of the boundary. This value will be checked by measuring the amplitude of reflected waves off a boundary and then finding the reflection coefficient from these measurements. If the two values obtained for the reflection coefficient are close, then the acoustic impedance measurements will be validated. Theory When a sound wave travelling in a liquid hits a boundary with another material, some of the wave is reflected off the boundary. The amplitude of the reflected wave is given by the equation: R=A_R/A_I Where R is the reflection coefficient of the boundary, A_R is the amplitude of the reflected wave and VIEW DOCUMENT
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Distance Protection Algorithm for Three Terminal Transmission Lines Using Local Measurement

1420 words - 6 pages different sources. So far, different fault location algorithms for three-terminal transmission lines have been developed [1–18]. Several algorithms assume data to be available at local terminal known as one-ended fault location techniques [1-3]. Infeed currents and fault resistances are sources of errors in these fault location algorithms. Many other algorithms use data from more than one terminal. In [4] synchronized voltage and current waveforms measured at all three terminals are used to calculate the fault location. The authors utilized the prefault measurements at three terminals to synchronize the waveforms. An alternative approach is presented in [5] which similarly uses measurements VIEW DOCUMENT
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The Benefits Of Dr. Josef Mengele’s Research

1282 words - 5 pages , mandatory daily blood tests, and anthropological measurements. Normal medical precautions for patients were not used; for example, anesthesia was not administered, protective coverings during x-rays were not required, and consideration of blood loss was not a concern in the daily withdrawing of samples.Mengele studied maternal and fraternal twins. He was fascinated most by identical twins. Robert Lifton states in his book The Nazi Doctors, "Measurements were taken of the twin's skulls and bodies and various characteristics of the nose, lips, ears, hair and eyes". An anonymous patient said, "It was like a VIEW DOCUMENT
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Organic Synthesis of Aspirin Chemistry Formal Lab.

1385 words - 6 pages from the filter paper and glass surfaces in steps three to five in the laboratory manual3 (Page 44). Some of it was left over on the paper and glass surfaces. A solution for this is taking more care when transferring the product from the different surfaces. Another solution is that in step 5 of the lab3 (page 44 one could try to wash down the aspirin with four small 5mL portions of water rather than two large 10 mL portions as stated in the lab manual.Another source of error is not allowing enough time for the aspirin to recrystallize and precipitate in the ice bath. This would mean that some of the aspirin would be dissolved in solution and not be caught by the filter. A simple solution VIEW DOCUMENT
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The Progress and Setbacks in the Development of Commercial Nuclear Fusion

2160 words - 9 pages attributed to computer simulations built to model the forces acting on nuclei in the fuel capsule. The code implements well-tested theories and measurements from experiments, including measurements from hundreds of thermonuclear bomb explosions (Grant). All the data support the claim that inertial confinement could one day produce energy gain. As technology advances new ways of controlling the subtleties of laser properties are arising allowing for the more specific manipulation of direction and temperature. Nuclear fusion has significant advantages over other methods of harnessing energy. The fuel supply of hydrogen isotopes is nearly inexhaustible. While natural gases are limited and the VIEW DOCUMENT
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Protein Thermal Stability

2442 words - 10 pages chemical and physical nature such as the isoelectric point, solubility and size, and its biological attraction to other molecules all can be exploited to separate a particular protein from the solution in which is resides. Typically several steps are used to purify a particular protein. These include heating, acidification, subjecting a solution to reducing conditions, and drying. More sophisticated techniques include chromatography, ultra filtration, reverse osmosis, and high-pressure liquid chromatography (Kinsella and Whitehead 2001). The isolation of proteins from their original matrices allows for their use in different food systems to improve such qualities as nutritional value VIEW DOCUMENT
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Was Einstein right?

2104 words - 8 pages believe there may be physics beyond Einstein. Attempts to unify the interactions of physics in an overarching quantum model, such as string theory, all involve making small modifications of standard general relativity, not the least of which is moving from the four dimensions of space-time to 10 dimensions.The recent astronomical evidence that our universe is expanding faster with time rather than slower may require a return to what Einstein called his greatest blunder, the addition of a "cosmological term" to his equations.And laboratory scientists are making delicate measurements of the force of gravity between tiny objects separated by fractions of a millimetre to see if VIEW DOCUMENT