Essays on Experiment

The experiment aimed to show that Blm10 protein elevates the turnover of proteasomal substrate through an active gating mechanism. This was to be done by showing that Blm10 enhances degradation that is proteasome-mediated in vitro using hypophosphorylated unstructured tau-441 as the substrate.

The objective was achieved using various stains such as BY4741, yMS63, yMS94, yMS122b, yMS131, yMS152, yMS159, and yMS476 among others. To start with, the proteasomal activity was assayed by determining gate opening in yeast CP/20S proteasome by the C terminal peptides. Phenotypic analysis was also done by growing the stains overnight in YPD and diluted ...

Introduction

In my experiment, I used the sequential design as my experimental design. It guided me to agree with the hypothesis,” that emotionally loaded words like “sex” and “prostitute” must be exposed for a longer time to be perceived than neutral words. I conducted surveys so that I could come up with the findings and the conclusions of the experiment. The dependent variable in the experiment was the threshold in which the loaded words are used. The independent variable is the time taken in the surveys that I conducted.

The sequential experimental design requires the researcher to complete a ...

SCENARIO ONE

EXPERIMENT TO INVESTIGATE THE SUDDEN FLOW OF WATER IN THE TAPS AT HOME

This study is going to investigate the sudden floor of water in my house. Water running from the tap is usually enabled by many factors such as shortage in the reservoir tanks, absence of power to pump it up and down the reservoirs among other factors.

In my house, there is a massive water reservoir located at the top of the building. Water is pumped from the public water lines to the dam at the reservoir tank by use of electricity. Once the water is pumped, ...

Introduction

Enzyme refers to a molecule that is protein in nature and functions as a catalyst to speed up the rate of a given reaction. The understanding of the basic theory of enzyme kinetic is an essential in the understanding of the mechanisms involved in the activity of an enzyme, as well as in selecting the best method of analyzing the enzyme. There are several factors that have an effect on the rate of an enzymatic reaction. These factors include temperature, pH, enzyme concentration, as well as the concentration of the substrate (Worthington Biochemical Corporation, 2013).

The increase or decrease ...

Experiment 1: Interdependence of Species

Post Lab Questions

1. Hypothesis: Removal of one species alters the status of the entire ecosystem. It was confirmed in the experiment. When each of the species was removed, all the other species had to be adversely affected.

2. All species were removed at different times beginning with lichen, then tree, flower, bees and eventually humans respectively.

3. Since each of the species depends on one another, the elimination of any of them had a great effect on the rest. For instance, the removal of lichens adversely affected the tree, flower, bees and humans. It is the chief source ...

Introduction

Spectrophotometry refers to a method that is employed in the determination of the amount of light that is absorbed by a chemical substance. In chemistry, the term spectrophotometry refers to the determination of the reflection or transmission characteristics quantitatively material through a function of wavelength (NIST, 2012). The spectrophotometry analysis is carried out through the light intensity determination as a beam of light passes through a tube containing the sample solution. The process of analyzing solution concentration using spectrophotometer utilizes the fact that light possesses a dual nature. This is where the light may exist either as particle or ...

2) There are justifications on the presence of the moon. Perhaps, collision-ejection theory of the moon gives an explains on the issues. The theory asserts that the moon exists due to the formation of debris ejected from the earth, especially when objects crushed. Collision-ejection theory claims that the newly formed earth collided with mars at an angle, which splashed the layers of the earth surface into the orbit around it. This implies that the Earth crust and mantle formed the moon though condensation. There are various facts on the moon that the theory is consistent with. Some of the ...

Movie Review

In the film “Image is Powerful: a Cameron Russell TED Talk”, the model Cameron Russell explains how beauty is not always synonymous with happiness. A model at a young age, Russell proclaims that she was the result of a “genetic lottery”, in other words her appearance gave her advantages in life such as her career. However she also relates the downside of being objectified because of her looks.

In one instance she described a highly sexualized photo shoot that occurred when she was only 16 making her very uncomfortable about how she was valued only for her appearance.

In ...

Discuss the importance of external and internal validity and some of the threats to each of these.

Validity means a measurement quality indicating the extent to which the measure replicates the underlying construct, to be precise, whether it measures what it claims to measure. Internal validity may be important in determining the accuracy of the results. Given that samples may not be selected randomly, the results may perhaps be inaccurate. External validity maybe important in determining the “generalizability” of the population findings (Bernard, 2000). For instance, if the selected sample is only African-Americans under the age of 35, then it may be difficult to generalize the results to the entire U.S. population.

Internal validity threats include:

- Testing: this relates ...

Research Problem/Question: The researchers had based their research on the argument that violent especially shooting video games have become most important leisure activity among youth. With the increasing praise for such games in media and public, these games have stimulated aggressive behavior and feelings of inattention towards friends and family as the users have perceived these animated characters as social beings and they are not actively involved in social activities. Apart from enjoyment and stimulation of aggressive behavior, youths feel no wrong in killing; rather they enjoy playing these games. However, very little research has been ...

Measurement in this case refers to use and application of rules for assigning numbers to different objects. Different measurement scales are applied for different classes of objects. For instance, measuring a height of a sample population may be done in inches, whereas the weight of the sample population may be done in kilograms. The scale measurement constitutes three important properties. According to Kaplan and Saccuzzo (27), these are magnitude, absolute zero, and equal intervals. Magnitude refers to the ability to represent more, less or equal attributes of a given entity or object. This is clearly shown in a scale ...

This experiment was conducted to see if web sites look different in different browsers. The hypothesis for the experiment is that there would be less visual differences between web pages in the Windows browsers than there would be between the Windows browsers and the OS X browsers. Using the web page emulator Adobe Browserlab, two web sites were viewed in three different browsers, including Microsoft’s Internet Explorer 7.0 (IE) for Windows, Google’s Chrome 18.0 for Windows, and Apple’s Safari 5.1 for OS X.

The first web site viewed was ...

Consent is a fundamental element of ethical research. In this case, the experiment will be carried out on children and therefore a number of challenges will arise as regards consent due to their incompetency in making decisions on their participation in the research. As a precondition to acquiring consent, an independent review of the associated potential risks and benefits will be necessary (Hickey, 2007). Following an independent review of risks and potential benefits with a positive outcome, consent of participants will be sort. Due to a lack of cognitive powers and experience that would enable a meaningful understanding of ...

There are various development processes that a child goes through as he grows up. Through this development process, the children develop a form of communication as well as a language that they can best communicate in. this essay looks at various aspects of child development, and it is expected to shed more light on the development issues.

1. According to Plowden Report (1967, p. 2), language is the media through which people or other living beings use to relay information from one point to another. It is a way through which people pass on their ideas to others in ...

Library Assignment

A famous sociological study is The Stanford Prison Study conducted by Philip Zimbardo in the early 1970s. Using the library, find and read the Stanford Prison Study. Pay special attention to the outcome of the experiment. Discuss how Zimbardo’s findings apply to similar, real-life events happening today. Be sure to find and present examples of the concepts introduced in the experiment in your discussion. Please include a short introduction and a conclusion

Introduction:

The Stanford Prison Experiment was a landmark experiment in the history of prison operations. Here a number of males aged between 25 and 35 were allotted ...

Question one. List at list two main goal(s) of this publication

1).The purpose of the publication is to broaden the information available for the organizations involved in the fight against counterfeit organizations with vibration spectroscopy. 2.) The Second purpose of this publication is providing a model for identifying counterfeit products with genuine products.

Question two. Identify two analytical technique used in this publication and provide the basic theory of this technique.

The first analytical technique used in the journal is Raman spectroscopy. This technique is used in the study of rotational and vibration models in a system. The spectroscopic technique relies on the effect of inelastic scattering and Raman scattering of single wavelength light emitted from a laser in the near infrared, visible and near ultraviolet regions ...

In a quantitative research design for my problem statement, Arabic language instruction intervention will be implemented in an experimental group taking a 24 week course at the Defense Language Institute Foreign Language Center at the Presidio of Monterey, California. A control group with no intervention methods will also be studied at the same time. Information would be recorded via test scores at the end of the course; all participants would take the Oral Proficiency Interview (OPI), and the mean scores for both groups would be compared to determine whether the hypothesis (that the instructional methodologies ...

Aim: To measure the partition coefficient values of sulphamidine and acetylsulphamidine present in water/octanol solution at different pH.

Abstract: After measuring the pH of the buffer solution, two lots of eight bottles were prepared. 5ml of drug and 5 ml of buffer solution were added to each bottle and shaken for 30 minutes. Absorbance was then of the solutions in the bottles was then determined. Introduction: Partition coefficient gives a measure of how a substance distributes in two different phase at equilibrium. Partition coefficient is utile in estimating the distribution of the drug within the body. There are two types of drugs, hydrophobic and hydrophilic drugs. The hydrophobic drugs have high partition coefficient and are distributed in ...

Pretest and protest research design is an evolved version of posttest design. This design deal with issues of biasness arises due to allocation of respondents in to groups. In the Pretest and protest experimental research design influence independent variable over dependent variable determined. In Pretest and protest experimental research design total sample divided in to two parts, one part is experimental group and other is control group. In the study experimental group got introduced with variable whereas other control group remains intact. Under the research pre test and post test results for both the groups were compared. The difference ...

In this experiment we are using JAVA applet of wave model which is available at: http://www.colorado.edu/physics/2000/applets/fourier.html

Here we can change wavelength and amplitude of two waves and in the third graph we can see a wave combined from these two waves. By changing any of two waves we can observe how it affects wave on the third graph. 1. Let’s set in wave length equal to 50 and amplitude to 1 in the first and second graphs. In this case we can observe that in the third graph wavelength is two times bigger and amplitude is also two ...

Qualitative research is often divided into either experimental or quasi-experimental research. Experimental research typically involves a control group and an experimental group performing an action and a variation of an action, respectively, in order to gauge the differences in results that should occur. A quasi-experimental design is an experiment along the same lines, but there are some unique differences that set it apart. In this paper, the differences between experimental and quasi-experimental research will be examined (Cozby, 2008).

Experimental research is strong in internal validity - it allows for X to lead to Y, because ...

Threats to validity of a research design can lead the results of said research to be thrown into doubt. Both external and internal validity, in addition to construct validity, are factors that need to be considered when forming a research design. In this paper, the various threats to validity are compared and contrasted, and applied to my current research design involving second language interventions for teaching Arabic to military officers.

External validity involves the ability to link the current research in the sample to outside settings and situations. Threats to external validity include inferences that are wrongly inferred from ...

The variables

Stress can occur to any human being. Stress is a normal psychological and physical reaction to the demands of life particularly to traumatic incidences. The process of induced abortion or natural is a stressful time for many women (Adler, N. E., David, H. P., Major, B. N., Roth, S. H., Russo, N. F., & Wyatt, G. E. 1990, p. 41). The stress can occur before and after abortion. In this study we are focusing only on post abortion stress. Women who undergo abortion natural or induced are likely to experience acute stress i.e. Acute stress originates from the demands and ...

Objectives

The aim of this experiment is to study the effective thermal conductivity of a heat pipe. This is achieved by measuring the difference in temperature across the heat pipe and another conductor made of the same material and size. The temperature measurement for both the pipe and conductor is done under identical thermal conditions.

Apparatus

- Copper-water heat pipe – The specimen whose thermal conductivity is to be found. It is represented in Figure 1. - Solid Copper Wire – The reference material of same size. - Thermocouple (quantity – 3) – Temperature measuring instrument (analogue). - Multi-channel digital thermometer – Temperature measuring instrument (digital) ...

Abstract

The assessment of respiratory functions is mandatory in the diagnosis of lung diseases and related disorders. These functions are assessed by measuring the lung volumes and capacities. In the present experiment, we learnt the use and operation of BIOPAC airflow transducer for measuring the lung volumes. We understood the rationale behind the precautions taken while experimentation. We could successfully correlate the obtained results with the physiological conditions of the subjects of the study.

Experiment on Respiratory Volumes

Respiratory system is a vital system of human physiology. It is involved with the gaseous exchange wherein oxygen is inhaled and carbon dioxide is exhaled from ...

English

Introduction In his article, John Derbyshire wrote about the challenge of improving the children’s academic performance. He documented that a few years ago, New York City Mayor took the Rand Corporation’s service in raising the students of public schools’ examination score by providing cash bonuses for those teachers who will have an improved class. As he continued with his article, Derbyshire used different styles in writing to persuade his readers. Based on his attempts to persuade his audiences, rhetorical strategies were used such as logos, ethos and pathos. However, there were clear manifestations of logical fallacies in ...

Appeal to the Audience

The report talks about the importance of controller tunings in controlling industrial equipment. According to the report, controller valves are important in controlling the flow rat, the amount of input in machinery and also the amount of output of the machine. The importance of the controllers can be seen in controlling a water cooling machine in which case a slow controller would be inappropriate to be used. The importance of a feedback controller on the other hand is the essence that it enables the determination of an error that may occur between a set point and the process value ...

Introduction

The purpose of this experiment was to observe collisions between two carts, measure energy changes and classify the collisions. It was hypothesized the momentum would be conserved during the collisions.

- Consider a head on collision between two billiard balls. One is initially at rest and the other moves towards it. Sketch a position vs. time graph for each ball, starting with the time before the collision and ending a shot time afterward Before collision, ball 2 moves with a constant velocity towards ball 1. Therefore, its position changes with time while the position of ball 1 does not ...

Abstract

The experiment is aimed at constructing a step-up transformer. This is due to the type of materials being used and the number of rolls that the wire is rolled on the U-shaped material. This can easily be related to the alternating current that is tapped from one source to the other. This current can easily be measured in respect to the size of the voltage that is alternated in between the primary transformer and that of the secondary transformer. The number of coils in the primary material is two; the other secondary coil has four coils. The material used ...

Article Analysis

Abstract Introduction Methods First, all patients were admitted to the trial wards and those who met the inclusion criteria were considered. Secondly, the members were recommended by ward staff to the study nurses. Thirdly, the entry criteria included; age of 65 years and above; the pressure ulcer risk of 15 to 20 based on physiologic, demographic, and disease specific features and consent to regular examination of pressure areas. Also, the members were transferred to the trial beds after their consent was sought. In addition, the exclusion criteria were employed such as obesity greater than 155 kilograms, if the patient ...

Methods of Heat Transfer

Conduction The first method through which heat is transferred from one object to another is conduction. Conduction occurs in liquids and solids through transfer of kinetic energy present in one particle to the immediate particle(s) in its surrounding. By considering the bonds existing between atoms and molecules in solids as elastic links, the vibration of one particle due to increase energy level caused by heat, the next in its line vibrate too. This process is replicated in adjacent particles thereby allowing transfer of thermal energy from a body with a higher temperature as compared to the one with ...

Ryan Gleason

Salem Almansoori Introduction Ballistic pendulum as illustrated in Figure 1 below is a classical method of measuring the speed of bullets. This technique, which is commonly used in investigation of bullet speeds, relies heavily on the basic laws of conservation in physics. Figure 1 Ballistic Pendulum Set-up Figure 2 illustrates how the experiment is executed chronologically from the time the ‘bullet’ is launched to the time it ceases travelling at the maximum angular displacement. In the illustration, the bullet of mass, m and initial velocity, v hits a stationary pendulum cup and it is embedded in it to form ...

There is a time when advertisers need more than descriptive research to understand consumers current behaviors and attitudes. They sometimes require an understanding of cause and effect, which is obtained through experimental research in which an advertiser alters something in the consumer’s environment, or product in order to see what would happen. The goal of an experiment is usually to determine the effect of changes in one area on one or more other areas. An experiment is used to vary the amount of advertising placed in particular markets to determine how advertising weight affects target audience, advertising awareness ...

1. Abstract The sodium iodide scintillator detector is a very important type of inorganic scintillators. The main function of this scintillator is to detect gamma rays by interaction of ionizing radiation and the materials of that scintillator. In this experiment, we learned the applications of this detector and how the process of detecting happens. 2. Introduction This lab experiment is designed to make the student learn about scintillation detectors and how do they detect gamma and beta ray such as the effect of a sodium iodide NaI(Tl) scintillator. This type of detector the scintillation materials interact with ionizing ...

Research is critical to the advancement of any field, whether it is engineering, medicine or even management. However allowing researchers to conduct experiments without any supervision or without checking in with some regulatory authority might put them and others around them at risk. The premise of this paper is to argue that research regulation is necessary to ensure that civil rights of those involved with the experimental safeguarded. In the five case studies that were outlines for review, one common factor among them was that in cases when researchers were given freedom to perform experiments they put the results ...

#90457 1

In 1928, the penicillin was discovered. It was a powerful medicine with numerous possibilities to cure diseases. Doctors all over the world tried to find out new ways of using it. One of the theories stated that the penicillin could treat and prevent the syphilis and other sexually transmitted diseases. In order to prove this theory, the Guatemala Syphilis Experiment was begun. This experiment took place between 1946 and 1948. It was led and sponsored by the United States Public Health Service under the guidance of the physician John Charles Cutler. The Guatemala Experiment was one of ...

Abstract

The objective of this experiment is examination of diffraction and interference of visible light when it is passed across narrow double and single slits. In order to do so, the diffraction patterns of light will be investigated through collection of pertinent data relating to the distance between pattern’s centres and maxima. Of particular interest in this experiment is the varying intensity of light and respective positions on the display screen as ascertained trough measurement and calculation of width and separation distances for respective patterns. The experiment concludes by highlighting the wave attributes of visible light as manifested in ...

Abstract

All cells in a living organism require energy to drive various cellular activities such as transport of molecules and movement among others. The rate of cellular respiration may be affected by the substrate concentration, pH level and enzyme concentration among other factors. This experiment aimed to study the rate of cellular respiration in isolated mitochondria under different conditions. It was hypothesized that if the concentration of the substrate is increased then there will be an increase in the rate of cellular respiration. Mitochondrial suspension was used as the source of succinate that was used as the substrate. The level ...

- Anthropology by definition is the study of human beings present and past life with an intent of deducing ways of evading problem and ensure development of the human population. - In respect to the main objective of anthropology research done in this field ought to ensure that humane methods of conducting the same are well adhered to. - Conflicting to what ought to be the essence of anthropological research are the presentation of inhuman experiments, one example of this is that of Guatemala that entailed using prisoners as subjects for testing the effectiveness of penicillin in treating syphilis. ...

Abstract

A polymerase chain reaction also known as PCR refers to a technique that is used in the amplification of a DNA fragment making huge numbers of the original fragment. The process uses an enzyme known as DNA polymerase to multiply the DNA fragment. Other components that are necessary for a PCR reaction are the DNA template that is provided by the sample being multiplied, the primers, and nucleotides. The experiment aimed to examine a number of human DNA polymorphisms, the PV92 Alu polymorphism and the mitochondrial control region using human DNA. This was achieved by isolating the mitochondrial DNA ...

Introduction

A turbulent jet is a source of energy and momentum in a fluid tank. A jet is considered fully turbulent at a jet laminar for Rej below about 100 and Reynolds number Rej above about 1’000 – 2’000. Therefore, the limit between a turbulent jet and laminar is around the Reynolds number of 3’000 and the significant characteristics of the jet are its discharge and momentum flux.

Eq. 2; Qj = vjAj – jet volume flux Rej = vjdjv = jet Reynolds number Frj = vj√g'dj = densimetric jet Froude number

Where;

Vj is the jet velocity at entry point Aj is the ...

Introduction

The purpose of this experiment was to verify Newton’s second law of motion. The force and acceleration data was collected by Logger Pro for a cart moved back and forth. This data was used to analyse the relationship between force, acceleration and mass. It was hypothesised that the acceleration would directly be proportional to applied force but inversely proportional to the mass of the cart.

- When you push on an object, how does the magnitude of the forces affect its motion? If you push harder, is the change in motion smaller or larger? Do you think is ...

Introduction

The object of the paper is to analyze the above relationship over a range of pressures extending above and below atmospheric pressure. Data were obtained for the pressure and temperature of a saturated steam-water mixture in equilibrium over a wide range of pressures and temperatures. The “raw” experimental data are given at the end of this document and the apparatus used are described below.

The object of this exercise is to:

a) Use the raw data to produce a table of absolute pressure .v. absolute (thermodynamic) saturation temperature over the whole range of the data provided. b) Compare this data to equivalent data taken from steam ...

Abstract

The present paper examined water quality and contamination. The three experiments were conducted to find the effects of different pollutants on groundwater, processes of water treatment, and quality of bottled water. The contamination of groundwater was observed to evaluate the result of vitiating environment that has to be protected to ensure a safe future for the progeny. Water treatment processes have to be effective as well as economical, so that people in general worldwide can be benefitted. Treatment method like filtration has researched out for the benefit of people at large. Bottled water was analyzed considering safe for drinking. ...

Abstract

Water is one of the fundamental requirements for any form of living thing on earth. It is known for the many vital roles that it plays in the continued survival of animals and growth of plants. In animals, water plays an essential role in maintaining many processes that take place both in the system of the animal and the outside world as well. Water acts as a medium through which most chemical reactions take place within the body system of all animals. In plants, it plays several roles, mainly by allowing the absorption of dissolved nutrients and mineral salts ...

Abstract

This paper is an expository essay on the article” The influence of the feel of product packaging on the perception of the oral-somatosensory texture of food” presented by Betina Piqueras-Fiszman a,b,, Charles Spence (2012). Initial sections of the paper covers the expirmenet and method adopted in the article. The Later sections deals with critique and results of the experiment.

Introduction

The research has focused on the multisensory integration regarding the superior colliculus (SC) of the adult neurons (Betina & Spence, 2012). The core emphasis has been on perception of food texture and it also focuses on what may occur inside ...

Abstract. Oxidation of ethanol is carried out by the oxidizing agent, potassium dichromate. The oxidizing agent undergoes a color change followed by the completion of the reaction. This change of color is utilized to measure the absorbance of the solution. The concentration of the unknown ethanol sample is calculated by plotting an absorbance vs concentration graph of the standard solutions.

Module and group

Lab class completed - Introduction The aim of the experiment is to determine the concentration of ethanol by calorimetric determination method. The concentration of ethanol is measured following its oxidation with potassium dichromate. Potassium dichromate (K2Cr2O7) undergoes reduction, which ...

Sampling is the process of selecting a group of subjects to act as a representation of the entire target group. The selected representative portion of the population is called a sample, and it upon which generalizations of the research findings is done to apply to the whole target population. There is one principal way through which a sample might not be a representation of the entire population. This occurs when randomization is not done during the process of compiling the sample. It should be noted that randomization is the key to building an effective representative sample for the study. ...

[Institution’s Name]

Methods Online Discussions 2

Example 5.2 Grover's Corner DOT; Objective; "Discuss the challenges of determining external validity for one of the case examples presented in this chapter [Chapter 5]. What about the research problem might make the results externally valid? AND, what factors might limit the external validity of the findings? An analysis to determine the challenges of the external validity over the referred case can be observed from the multiple dimensions of extraneous variable that influence the variables of people, setting, time and places for accurate calculation. In particular, the presented case study, exhibit the readings on the measurement ...

Centripetal force

PHY 2091-01 Introduction The purpose for this experiment was to determine the centripetal force acting on a metal bob revolving on a Beck centripetal force apparatus. The mass, radius, and time for completing one rotation were measured and used to calculate the centripetal force. Weight of masses hanged on the metal bob was calculated and used to determine the static centripetal force. Calculated centripetal force and static centripetal force were then compared.

Data

The results obtained from the experiment are shown below: Data analysis The calculations are as shown below: Percent error in radius Percent error in radius (%σr) = (0.005/0.18)* ...

Objective

Purpose of this laboratory is to inspect the effect of precipitation hardening in Aluminum and steel alloys. Theory Hardness is a property of a material which delineates resistance to permanent or plastic deformation. For metals, hardness is generally defined as the resistance to indentation. One way to attain hardness is to look into the effect of precipitation hardening. This type of hardening helps to detain the yield strength in the material. There are four methods used to test hardness of a material: Rockwell, Brinell, Vickers, and Knoop. The Rockwell hardness test measures the depth of indentation, while the other ...

Executive summary

Online marketing has with time become the most convenient way of buying and selling merchandise. The online methods of payment are the most lucrative methods to earn cash fast with great ease. This is made possible by the several card companies including Visa and MasterCard. In the modern world, all needed is one to give the card number to the online store upon which funds are deducted, and hence payments made. This method of payment had become the most popular payment method up until other systems, where emails make payments we’re introduced. In the latter system, one needs ...

Introduction

There are many resemblances that can be observed in magnetic and electric phenomena. A magnet comprised of north and south poles which are opposite to each other. The opposite poles attract and likewise repel each other. A magnet has principle property to influence the surrounding space. This surrounding effect of a magnet is known as a magnetic field. Magnetic fields consist of lines of force and force of attraction and repulsion that travel/or move along the lines. The developed forces depend on strength and distance apart the poles. Figure 1: Magnetic lines of force for bar magnet A magnet ...

The notion good people change their behaviors when put in an evil environment was experimented by a team of researchers led by Dr. Zimbardo in the infamous Stanford Prison. Twenty- four volunteers were chosen to stay for two weeks in prison where they would be subjected to the harsh prison environment. For their participation, the volunteers who were divided to two groups, the prisoners and the guards would receive $15 a day as compensation (Zimbardo 244). Prisoners underwent extreme punishment, degradation and depression as they wholly started to believe they were actual prisoners. The guards enforced and abused their ...

The Title of the Article

The title indicates that the article is about morale and role strain of undergraduate nursing students in a pediatric clinical setting. However, Chen fails to specify the aspect of morale and role strain that the article seeks to deal with in the title. For instance, the title would have been more specific if it were stated as follows: causes of morale and role strain of undergraduate nursing students in a pediatric clinical setting. In this case, a reader would be able to tell that the article deals with the causes of morale and role strain. It therefore follows that ...

Description of a Design of an Experiment

A quasi experimental study is a research which helps to establish whether a certain program has an effect on what the participants are studying. This article will explain the details to be considered so as to have a successful research on the importance and benefits of learning music instruments on child development. The details to be considered are the participants, materials to be used and the procedure to go about through the research. The first step will be to choose the participants of research and the appropriate number. The participants of the experiments must be in the same course ...

A Review of a Journal article

What are the key objectives of the study? The key objective of the study is to guide the reader about all the aspects of the research processes, which mainly includes objective formulation, choosing appropriate research methods, securing participants of the research and data collection, analysis and interpretation.

What is the research problem?

The research problems refer from simple to complex, depending on the nature and number of variables (both dependent and independent) and the nature and relationship between the variables (Bryman, 2012, pp. 3). Once you understand the nature of the problem, it will make you able to develop the result of a specific ...

A collision refers to a physical situation where kinetic energy of momentum of an object is transferred from an object to the other one. In physics, collisions are classified as either elastic or inelastic. Conservation laws; energy conservation and momentum conservation are important tools in the analysis of collisions. Various literatures and experimental studies have confirmed that it is difficult to assess the interaction of bodies during collision. Therefore, main objective of this work is to demonstrate to relate the various parameters such as velocities and masses of the system using the principle of conservation of energy and momentum.

The momentum of an object of mass, m and velocity, v is represented mathematically as shown below:

...

Introduction and Theory

The main aim of this experiment is to investigate energy and momentum conservation in a closed system. Momentum and energy conservation principles are significant physical variables that engineers use when describing various physical phenomenon. Momentum of a body is a vector quantity, which is given by the product of its velocity and mass. In collision theory, the momentum of the body is always conserved when two bodies collide. The principle of momentum conservation applies to both elastic and inelastic conservation irrespective of the dynamic interaction between the two objects. This report demonstrates the application of momentum equation in determination ...

Group

Abstract Material selection is an important stage in engineering design. Engineers use various materials with different mechanical properties in building of structures. These mechanical properties include; tensile strength, yield strength, proof stress, Young's modulus, shears modulus of rigidity and ductility amongst others. Material selection increases the performance as well as durability of the engineering component. The expected life, cost, nature of loading and working environment are some of the factors that assist engineers to select materials for particular application. Therefore, engineers and designers must be able to determine the properties of these materials before they use them. Engineers use ...