Lab Reports Samples For Students

Introduction

Lab is a simple word used to shorten the word laboratory. It is a place in which experiments are carried out. These experiments include medical, physical and biological experiments (Martin 2004). Research is also done in laboratories. Laboratory equipment is an apparatus used in conducting experiments. Lab equipments vary from one laboratory to the other. Lab equipment integrity means using the equipments in the laboratory in the best way in order to produce accurate data that is used in research and experiments (Melissa 2000).

Objectives

The main objective of making a report on lab equipment integrity is to develop a complete program that provides ...

Lab Report

Objective: To explore the characteristics of three single-phase transformers in a three-phase configuration.
Figure 1: Lab 1, Diagram.
- Star- Star (Y-Y) Connection
In star- star or Y-Y connection, each phase is 120° out of period with the extra two periods. In the same way, each secondary winding is 120° out of phase with the other two phases. Every primary winding is magnetically connected with secondary winding using the common leg. When talking about primary to secondary phases we will see that there is no phase difference in primary-secondary connections. It simplifies that both, primary and derived ...

Section

Introduction
The purpose of this lab was to investigate the stoichiometry and find out the mole ratios of simple acid-base reactions experimentally. The reactions studied in this experiment were the following:
HCl + NaOH → H2O + HCl
H2SO4 + 2NaOH → 2H2O + Na2SO4
H2SO4 + Ba(OH)2 → 2H2O + BaSO4
HCl + Ba(OH)2 → 2H2O + BaCl2
In the chemical reactions, the compounds react in distinct molar proportions or ratios which are constant to the peculiar reaction. The ratios determining the quantities of substances reacting are called stoichiometric coefficients. The reactions between strong acids and bases are relatively simple and non-reversible reactions the “end” of ...

Lab coats are usually knee-length, white overcoats that are worn by students, medical professionals, or researchers while working in labs. The most important purpose of a lab coat is to ensure safety. The following are a couple of possible accidents that can occur in a lab which can lead to severe damages in the absence of a lab coat.
1) Chemical spills: While working with chemicals, there is always a danger of splashes from toxic or corrosive elements which can react adversely with the skin. A lab coat generally gives a thick layer of protection to ensure that such chemicals do not directly come ...

Abstract

Human activities have a significant influence on marine life. Pollutants from landfills, dumps, mines, farms, etc. can pollute the ocean and later through the food chain cause harm to all land animals and humans as well. Protein is a very important structural component of an organism. Using protein for energy is an inefficient form of metabolism and in the long run detrimental to the organism. A significant low level of protein content was noticed in Mytilus californianus or (mussels) obtained from the polluted environment when compared to the tissue of Mytilus californianus obtained from pristine environment. Organism that are ...

Windows Server 2008 R2: Active Directory and Server Manager Remoting

Internet Explorer was used to access the TechNet-Virtual Lab in order to use the Active Directory and Server Manager Remoting for Windows Server 2008 R2. The Tech-Net Virtual Lab offers curious users and potential customers an opportunity to try Windows Server products for free. The Virtual Lab may have been essentially designed for IT Professionals and Developers because those are the two choices under the Drop Down menu titled ‘Job Role’ at the top left of the Home page with the URL address technet.microsoft.com. The Virtual Labs are available for brand new applications including Cloud and Cloud Services, Windows ...

Introduction and Background

In assessing the impact of microbes in the New South Wales (NSW) health system, it was discovered after laboratory testing evaluating Part A and B categories different types of colonies were discovered, for laboratory 1 evaluations. In laboratory 11specimens used in this experiment were blood, urine, cerebrospinal fluid; sputum, swabs from and

Mucous membranes.

Bacteria colony morphology:-. E Coli. This bacterium appeared to be creamy, shinny and rose to a level of 2-3 mm. M Luteus. This one was yellow shinny circular and rose to 1-2 mm. Fungal colony morphology; Saccharomytes cerevsaie ( yeast) and Aspergillus nidulans ( Mould ). Precautions must be taken while ...

The lower parts of St. Johns River is an estuarine river that has salinity rivers fluctuating with changes in tides. The dark coloration of the rivers is due to the extremely high levels of tannins from decaying matter. Turbidity, the dark coloration and other matters prevent the penetration of light deep into the water. As such, the growth of submerged vegetation happens in the shallow regions of the river. The river is fed from tributaries some of which are salty, the Atlantic ocean, tributaries and human wastes from industries and treatment plants for waste water. The lab report presents ...

Lab 2: What I liked

I liked the fact that the abstract was straightforward and direct. As soon as I read the first sentence, I knew what this lab was about and what the experimenter was trying to measure.
I also liked that the experimenter was honest in that he or she is uncertain of the values that were calculated or the way that the experiment was performed. Rather than reporting false values to make the lab report look better, the experimenter acknowledged that the outcome of the lab was not optimal. That is ultimately more useful for the people trying to learn ...

LAB REPORT-CONTROL SYSTEMS

Abstract
Filters are widely applied in many fields and are found in most of the devices. Such areas include low-pass filters installed in the landline telephones, a high-pass filters that are installed in the DSL modems with high-bandwidth and a band-pass filter installed in the cell-phone. The latter enables one to hear only the person to whom you are speaking, but not any other person around you even if they too are on their calls. Finally is the band-reject filter that helps to reject any AC power signal with a frequency of 50Hz or 60Hz when operating the sensitive ...

Introduction

OPNET Modeler can be used in order to create and analyze network models; therefore, it can do organizational scaling to deal with a specific ‘what if’ problem. In addition, use of Project Editor is necessary in order to create a small network, gather and collect statistics about network effectiveness and performance, run a network simulation, and analyze the received results and statistics. Moreover, designing a new network can be made easier if a group of several scenarios is combined in order to explore different network aspects.
In this lab report not only Loads and Delays on the first floor ...

Introduction

Torsion test is very important test to know the resistance of material of a material when it is subject to torsion. Resistance of torsion can be denoted by shear modulus which is derived from performing torsion test and creating a graph of angle of twist vs torsion. By measuring the slope of the graph shear modulus is evaluated. Another property of material, Young’s modulus, can also be determined from the value of shear modulus if value of Poisson’s ratio is known. In this lab experiment two metals were ...

Lab Report: Internal Resistance of a Battery

Lab Report: Internal Resistance of a Battery

Abstract

This purpose of this lab is to demonstrate the effect of internal resistance of a household battery on circuits and to measure the power transfer through it. The battery is connected in series with a rheostat that acts as a variable resistor. The value of resistance is varied across the available rheostat range. The voltage at the output is measured across rheostat and its effect on the charge depletion of battery is analyzed. The hypothesis of the experiment is that as the current flowing through the load increases with decrease in resistance, the battery tends to ...

Abstract

Concrete acts as one of the most essential and cost-effective construction material made from a mixture of sand, cement, aggregates, and water. Cement acts as a binder for holding all the components together. Engineers working in the construction site must understand the purpose of the construction because different structures require different concrete strengths. The strength of cement paste used controls the overall strength of concrete that depends on the water-cement ratio. The following experiment was conducted to investigate different mechanical and physical properties of concrete.

Objective: To determine mechanical properties of concrete.

Materials used: Aggregate (coarse and fine), sand, cement, water, compressive machine, cylindrical and rectangular molds, timer, ...

Lab number/title:

Introduction
Purpose of the lab experiment was to gain knowledge about structural properties of wood. In this lab experiment, a species of wood was tested. Four parameters namely Modulus of rupture, compressive strengths parallel to the Grain in longitudinal Orientation as well as perpendicular to the Grain in radial Orientation were found out by carrying out the experiment. Wood is an important construction material for possessing some outstanding structural properties. Application of wood can be seen as a compressive member. Being an anisotropic material, its properties change with direction with respect to wood's grain structure. Engineering properties of this material ...

Abstract

This lab experiment involved P-Methyl-Acetanilide synthesis from acetic anhydride and a solution of sodium acetate. Different techniques were used in this lab exercise including; vacuum filtration, crystallization, and spectral analysis. The main aim of performing this experiment was to synthesise, isolate, evaluate and analyse P-Methyl-Acetanilide product. We synthesised the product and then, isolated the product by the process of the vacuum filtration. We evaluated the products purity by melting point analysis and performed a spectral analysis (1HNMR spectroscopy) later. The 1HNMR spectroscopy interpretation is a method/ technique used to determine the structures of organic compounds that are unknown (Pavia 128). It stands ...

Introduction

The neurophysiology of nerve pulses in the cell were the subject of the online laboratory experiment in order to better understand neuron communication from inside a cell to the outside of a cell. One of the incredible characteristics of the nervous system is its capability to communicate due to the existence of neurons. Neurons show a measurable response to their environment by producing an electrical signal. We can smell due to olfactory sensory neurons that can directly react to perfume, food or anything with an odor; these odors are the sensory stimuli. The function of the receptor potential is to trigger an ...

Lab- Accumulator

Purpose
The purpose of this lab report is to understand the working of accumulator machine in the various working environment.
Theory
A useful application of the accumulator is to provide the ready source of the hydraulic power; thus the pump is running constantly. This application permits the small pump and the accumulator are to deliver a high output for the required intervals of time. The pressure switch is being used to charge the accumulator in the pressure level. The hydraulic solid pressure is sufficient for this operation. The regular piston accumulator is used as the mounting bar. ...

Introduction

Accurate and precise measurements are of uttermost importance to chemists everywhere. A measurement is said to be accurate when it is very close to the accepted value. A precise measurement is one in which repeated measures yields values or figures that are very close to one another. However, not all measuring instruments have an equal ability to give accurate and precise measurements. In any given experiment, the techniques and the equipment used to collect data should essentially be of the same precision. In the course of an experiment, there are bound to be less precise measurements and it these ...

Introduction

A theoretical research was conducted to demonstrate and to understand several fundamentals of hydraulics. This lab entailed information gathering and analysis of hydraulic fundamentals. It employed the use of both primary sources and secondary sources to collect relevant information on the selected topics on hydraulic fundamentals. The aim of the lab was to research and understand several fundamentals of hydraulics. The fundamentals were identified, defined and described in a non-technical manner. Additionally, the importance of the hydraulic fundamentals was briefly discussed. The scope of the lab was confined to a list of hydraulic fundamentals which included hydraulic head, the ...

Lab report

Abstract
The objective of this experiment was to determine the influence of phase transformation on the microstructure and mechanical properties of plain carbon steel type AISI C1045. The testing of metals is necessary to learn what metal is suitable for construction of a specific item by testing how microstructures react during phase transformations. The metal used during the experiments was samples of AISI C1045 Steel also called carbon steel alloy. The samples each underwent tests for Heat Energy (ft-lb) and Hardness (HRC) at five temperatures; 70°F (assumed to be room temperature, 400°F, 700°F, 1000°F and ...

Electrophilic Aromatic Substitution to yield 4-Bromoacetanilide

Introduction
Halogenation is a common process in organic synthesis. It is used in industrial and research synthesis as halogenated compounds are used for numerous widely used goods, including plastics. The lab aimed to perform monohalogenation of acetanilide. The reaction is specific since it is performed without catalyst. The typical halogenation is realized in presence of Lewis acid. Halogens molecules are electrophilic, and do not actively react. In presence of Lewis acid, the interaction is rather active.2
The lab used catalyst-free halogenation. The acetanilide molecule contains the acylated amine. As a result, the electronic density is shifted towards the amine ...

The outline is used to help a student write a paper in the most proper way because it serves to make the writer when researching and writing gather ideas and put them in the one place while properly organizing the themes which will be used in the paper. It is very useful to create an outline for research because research is consisted of extensive work on finding the proper sources which will be used in the final paper.
An outline serves the purpose of helping a researcher create a clear concept and make concise ideas related to the theme. “ ...

Section

Introduction
The purpose of this lab was to find the amount and percentage of nickel present in an unknown compound using the "mole method." The unknown nickel compound was dissolved in water and treated with dimethylglyoxime and ammonia solutions to obtain the precipitate of known chemical composition (bis(dimethylglyoximo)nickel(II)), which then was weighed and using this data the amount and percentage of nickel in the initial compound were found. The insoluble Ni(DMG)2 complex is formed in two steps. First, the dimethylglyoxime reacts with hydroxide ion formed through the ammonia hydrolysis to produce dimethylglyoximate anion:
C4H8N2O2( ...

Objective

Main objectives of this lab are:
learn and practice to use a graduated cylinder, pipet, and buret for volume measurements;
determine average volume of a water drop using volumetric ware;
find the density of liquid and a solid using mass and volume measurements.

Hypothesis

Average percent difference indicates volumetric ware’ accuracy and precision. In this lab pipet out of all volumetric ware will have the highest accuracy and precision and, therefore, lowest average percent difference.

Materials

In this lab, the following materials were used:
graduated cylinders;
beakers;
burets;
plastic droppers;
pipets;
rubber stoppers;
unknown liquids.

Procedure

The graduated cylinder
The graduated cylinder ...

Forensic investigations have gained widespread application by law enforcement agencies during the analysis of a crime (Tewari and Ravikumar 2000). Forensic experts have a tough task because they have to use samples collected from a crime scene to reveal the culprits. In this case, the investigator has to determine which of the two companies (A or B) is responsible for the pollution that was reported.
The samples that were collected have been analyzed using Fourier Transform Infrared (FTIR) spectroscopy. This form of spectroscopy is employed to produce an infrared spectrum of not only photoconductivity and emission, but also absorption of a substance ...

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 ...

Lab Report

Abstract:
In this lab, we used our existing knowledge of electrical circuits and laws, to analyze and practice voltage division and current division theories. For the first part, we set up the voltage divider circuit as from the pre-lab shown in Figure 1, and measured all the voltages, and currents for every resistor.
Figure 1: Voltage division circuit
We then analyzed the circuit from the point of view of Kirchhoff’s voltage law (KVL), and calculated the error between the measured and predicted values. According to KVL, the sum of voltage drops across each of the ...

Section ____________________

Stoichiometric Data (For any reactants that are part of the balanced equation, base on the amounts measured in lab)
Figure 3-sulfolene
Figure IR spectrum for cis-4-Cyclopentant – 1,2 dicarboxylic acid anhydride
Figure from experiment in the text

NMR 1 from lab results endo norbornene-cis-5,6 dicarboxylic anhydride

Figure 2 from lab results the exo norbornene-cis-5,6 dicarboxylic anhydride (less stable)
Theoretical from http://www.ch.ic.ac.uk/local/organic/pericyclic/p1_sigma.html

Discussion

Figure 1.The diene (1,3 butadiene) plus the ethane (sulfolene) produce a cyclohexene (either the endo or exo isomer depending on reaction conditions).
Figure 2. Under acidic conditions to sulfuric acid the endo isomer plus water form the less stable exo isomer
...

Report for product transporting

Introduction
Preparation of protein EcCLpS in lab environment requires much time as well as controlled environment. ClpS protein is a member of the Clp family of proteins displaying modular structure. It is essentially a bacterial adaptor protein. Artificially prepared CLpS protein is sought by companies, especially pharmaceutical companies, for research; especially for ELISA, western blot experiments, antibody production, Right-Over –Expression Lysate and Left Control. It is researched for its application as antigen standard for colipase. As it is a specialized production, care has to be taken in its handling and dispersing to the end client. Specific conditions need to be maintained ...

Introduction

The objective of this experiment is to study the effect of a solute on the freezing point of a solvent. When a solute is added to a pure solvent, the freezing point of the solvent is lowered as compared to its pure form. This decrease in freezing point of the solvent is known as “Freezing Point Depression”. A similar phenomenon occurs in the boiling of such solvents, but instead of decreasing, the boiling point is increased due to the addition of the solute. This phenomenon is known as “Boiling Point Elevation”. Such phenomena, including others, are known as colligative ...

Introduction

A refrigerator is an electrical device used in temperature maintenance below ambient temperatures. To achieve this function, the refrigerator should be able to create a heat sink at cold room temperatures a temperature that should be lower than the ambient temperature while at the same time also rejecting heats having higher temperatures than the ambient temperatures. To achieve this refrigerant is forced to undergo evaporation at temperatures lower than the ambient temperature(Griffiths, 1937). When the refrigerant is compressed at high pressure and condensing temperatures above the ambient temperature results in the loss of heat and condensation back to ...

Introduction

Bend (flexure) testing is often done in springs as well in brittle materials whose behaviors of failure are linear like concrete, wood, plastic, glass and ceramics. Bend testing is suitable for evaluating the strength of brittle materials where the results of tensile tests aren’t easy to interpret due to the breaking of specimens around the gripping (Schoffstall, Charles, and Robert 234). In bend testing experiment, smooth rectangular specimens without notches are recommended under three or four point bend arrangements. Figure I below illustrates three point and four point bend arrangements respectively.
Figure 1. Bend testing of a smooth ...

Introduction

Acids and bases are chemicals with a wide range of applications both industrially and on small-scale basis. According to Arrhenius, an acid is a substance that liberates H+ when placed in water (Slabaugh & Spencer, 167). On the other hand, a base is a substance that liberates OH- when placed in water (Slabaugh & Spencer, 167). To illustrate, pure water dissociates partially to produce hydrogen ions and hydroxide ions as shown in the equation below:
H2Ol H+aq+ OH-aq
In the above equation, water dissociates to produce H+ and OH-. If an acidic substance is placed in water, it reacts with ...

Introduction

The objective of this report is to summarize the key methods, procedures, goals and objectives, and takeaways from a series of individual laboratory experiments conducted throughout the course. Specifically, it is a summary of Exercises 1 on Phylum Porifera (Sponges), 2 on Phylum Cnidaria (Hydras), 3 on Phylum Platyhelminthes (Planarians), 4 on Phylum Annelida (Clamworms and Earthworms), 5 on Phylum Mollusca (Clams), and other exercises on Phylum Arthropoda (Crayfish), Deuterostome (Phylum Echinodermata, Sea Star), among others. Despite their number, the individual laboratory experiments, in fact, have one thing in common. That is their key objective is to be able ...

Introduction

A number of equipments are used in carrying out experimental activities in the laboratory. Knowledge of the use of these equipments is very critical to the success of experimental activities in the lab as well as ensuring the safety of the components as well as the person carrying out the experiments.
2. Purpose
The purpose of this experiment on equipment usage and measurement is to be familiar with the way to properly handle and use laboratory equipment and based on the knowledge of the equipment learnt know how to set up experiments using these equipment.
3. Equipment

The equipment used in this particular laboratory setup include the following

Function generator
...

Abstract

The main aim of performing this experiment was to study the behaviour of the voltage across a capacitor as it charge and discharge through a known resistor. From the experiment, it was seen that charge/ discharge of a capacitor follows an exponential function. We also studied about the time constant RC of the circuit.

Introduction

We carried out a lab experiment on an RC circuit recorded and calculated the results so as to determine the time constant. We found out that as capacitance decreases, time constant also decreases and increase in resistance lead to increase in time constant

Objective

Investigating the behaviour of a charged capacitor ...

The experiment involved using the simple paper chromatography technique in the separation of a black marker ink as described in the science project lab’s website (Science Project Lab, 2014).

Materials Used

Coffee filter
1-liter glass jar
Paperclip.
Pencil
Water soluble black marker
Scissors.
Vinegar and glass cleaner
Procedure
The chromatography strip was obtained from coffee filter and cut into a peace that can fit into the jar. A line was drawn one inch from the bottom of the strip. A line was drawn using the black marker along the marked line. The solvent (glass ...

Introduction

All organisms including human beings are exposed to a myriad of toxins from within the environment .The food we eat, the water we drink and the air we breathe, soaps ,cosmetics and other chemicals used in our daily lives contain toxins. Almost everything within the environment if taken in sufficient amounts can turn out to be poisonous or harmful .Therefore; there is a need to apply quick and cheap methods of testing and to determine the amounts of toxins in substances. Toxicity presents a complex variation between individuals. An amount that can harm one individual may not harm the other person.
...

Abstract

This report is supposed to address the relationship between the characteristics of Coarse Woody Debris (CWD) and its associated invertebrate community. For the purposes of this report, students will be introduced to data collection methods as well as identification and enumeration of soil invertebrates related to coarse woody debris. Coarse woody debris can be said to be the dead woody particles found mainly above the soil surface. These dead woody materials are always in different stages of decomposition depending on when the dead material started decomposing.
For the purposes of this report, only dead wood above 8 cm ...

Lab partner's name:

TA’s name:
Section no
Objective:
Purpose of this lab experiment was to gain knowledge about rotational motion from an energy viewpoint and to perceive how moment of inertia depends on the rotation axis for a given object. During this experiment a constant torque created a constant angular acceleration for a rigid body rotating about its center of mass.

Experimental Data:

Dimension of steel box = 0.05m x 0.04m. X 0.03m.
Mass = 0.442 kg;
Hanging mass = 20 g.

Medium Pulley:

1) Long -ways (longer axis):
Slope = 27± 0.35 ; Slope indicates angular acceleration i.e. α.
ωi = 0.45 rad/sec ϴi = 0.157 rad
...

Gravimetric analysis

Introduction
Gravimetric analysis is a method of measuring of mass of chemical substances. This analysis can be classified in two types; precipitation and volatilization (Bassett et al.). In precipitation method some steps, involved to determine quantify of the chemical substances, are separation of an ion in aqueous solution by a reaction, filtering and washing the precipitate, converting the precipitate to a substance of known composition, and lastlytaking weight of the precipitate as well asevaluating its mass. The chemical substance must be precipitated fully.Theunknown amount of original ion can be evaluated from the mass and known composition of the precipitate. Gravimetric method ...

Introductory physics lab

Lab report #4
Section 214

Objective:
Hook’s is a fundamental topic of physics and few divisions of engineering like Civil and Mechanical engineering. This law helps to perceive elastic property of a material. As per this principle of physics, force needed to compress or extend a spring by some amount of distance is proportional to the distance. If F is force and x is distance, then as per Hook's law, F = -k.X, where k is termed as stiffness and it is constant for a material rather the spring. Purpose of this experiment was to find spring constant (k).

Equipment:

Following equipments ...

Lab Partner’s Name(s)

TA’s Name
Abstract
The permeability of free space is an important physical constant when dealing with electromagnetic theory in physics. By carrying out this lab experiment knowledge about procedure to find this physical constant was gained. During this experiment several safety issues as well as various careful measures were taken as group members were dealing with current and sensitive balancing device.

Objectives

Purpose of this experiment was to calculate an experimental value for μ0, the permeability of free space after balancing repulsive magnetic force between two wires with antiparallel currents by utilizing a known gravitational ...

Management

Manulife financial corporation: life insurance
Introduction
Manulife Financial is a Canadian based financial services company that has its principle operations in Canada, Asia and the United States. Since its inception in 1887, Manulife has built a solid global presence that provides its clients with trustworthy, reliable, strong and forward thinking solutions for some of their most significant financial decisions.
It has an international network of employees who are more than 84,000 including agents who offer clients a broad range of wealth management services and products as well as financial protection. Manulife offers commercial, personal, corporate and investment banking products ...

Group number: 7

Section SLN: 7242S
TA’s name:
Part 3: Wooden block with one weight.
Mass of the wooden block, mb = 0.122 kg
Mass of the heavy weight 1, mw1 = 0.494 kg
=====================================================================

Part 4: Statistical distribution of data.

The attached histogram has been created for the
static / kinetic (select one)frictional force data.
III. Data Analysis.

Part I: Determination of the coefficient of static friction

- Based on the data collected for the wooden block carrying two weights and sliding along the lab table the coefficient of static friction was determined as follows:
(Show equation and sample calculation)
fs = μs N
where fs =Average ...

Lab Report

Abstract:
In this lab, we practiced making combinational circuits using the given resistors. We also learnt how to use a potentiometer in a simple circuit. For the combination of resistors, the voltage drops across individual resistors, along with the currents were measured. The current values were compared with the current values predicted by Ohm’s law, which states that V=IR, where V is the voltage, I is the current, and R is the value of resistance.
In the first part of the lab, a potentiometer was connected in series with a 100Ω resistor and a LED, connected to a 10V source. Initially, the ...

Aims and Objectives of the Experiment

The main objective of this experiment is to determine the concentration of different substances. This is achieved by determining the end point(s) of different titrations using the automated potentiometric titrator. These points are known as equivalence points. The units of measurement are the standard units used in titrations i.e. Molarity (moles/liter) of substances used while the quantities of these substances are measured in mL (milliliter).

Theory and Principles

Potentiometric titration is a volumetric method which measures the potential between two electrodes, namely reference and indicator, with the change in the volume of the reagent that is added, known as the titrant. ...

B. OBJECTIVE

C. METHODOLOGY
Over a period of time of four week study three generations of flies starting with a parental (P) generation that has already separate the flies in each generation of each cross into males and females and separate the flies according to their mutations. Based on the observed numbers of each phenotype in each generation of each cross hypothesize the parental cross and use the chi-square (x2) test and if there is little difference between the observed results and the expected results, the chi-square will have a low value, thus, the hypothesis will be supported in this case.
...

Executive Summary

Eldredge, Inc. is a major provider of by-product management services with the specific goal of performing these services in a responsible and environmentally conscious manner. With Eldredge’s multi-disciplined professional staff, field technicians and logistics specialists, Eldredge offers a complete spectrum of environmental services. Eldredge Inc. is headquartered in West Chester, PA and it provides services in the industrial, refinery, commercial, government, and utility markets. Eldredge, Inc. operates four main business units including:
1) Waste Transportation
2) Industrial Field Services
3) By-Product & Waste sourcing
4) Oil Reclamation & Water Treatment
Eldredge’s facility is permitted to handle an array of ...

Abstract3

Lab Four: Casting Footwear and Tire Impressions..4

Method.5

Material
Procedure
Results7
Discussion7
Appendix..9
Abstract
The following lab reports gives an account of experiementation with the casting of two different types of impression, using plaster of paris.
Keywords: footwear, tire, impressions, Plaster of Paris, casting
Lab Four: Casting Footwear and Tire Impressions
In the experiment conducted we took a casting from the track made by our footwear, as well as tire impressions, in ordeto determine which left more detail, or allowed for the simpler casting. For this experiment we used plaster of paris in order to create the needed casts, understanding ...

Nursing:

Purpose
The aim of the lab was to investigate what happens when a natural physical barrier suddenly splits a species within a given population.

Introduction

A species is a group of organisms within a population that can interbreed under natural conditions to produce fertile and viable offspring (The University of Miami, n.d.). In this context, a species exhibits reproductive isolation, in which physical and behavioral traits allow them to reproduce only with organisms that possess similar traits (Howard & Berlocher, 1998). Speciation describes how new sets of species are created and occurs when a group of organisms within a species separates ...

While working in the laboratory it is extremely important to remember safety rules. It is not allowed to work in the laboratory without special clothes – robe and safety goggles. Leaving the premises of the laboratory with a robe on is also prohibited. Using protective clothing helps to prevent chemical burns in case of dangerous substances being spilt. Students are not allowed to eat and store food in the laboratory as it might become contaminated. It is prohibited to take utensils and reagents out for laboratory. Personal belongings (bags, folders, etc.) should be kept in specially designated areas, not on ...

Report: Design and Fabrication a Business Card Holder

Introduction
In the current semester, all students have been assigned the task of designing and fabricating a business cardholder. Through the course of the semester, we have learned many techniques and acquired skills in the design and manufacture of 6061-T6 aluminum stock parts. Working hands-on in the cardholder business improved our understanding of the manufacturing techniques and other skills taught in class. The experience has prepared students for entry into the engineering industry.

The assignment involved cutting and machining a 6061-T6 aluminum bar to create a business cardholder while documenting each step of the process in order to make ...

1. Research the history of health information technology and trends in the management of health records.

Information Technology was introduced in healthcare in the late 1970s, when Medicare started to use computers widely in healthcare. Although punch cards and first computers were in use since the 1950s as well. Insurance companies can be considered as pioneers of Health Information Technology. It was in the 1990s, when the integration of computers with clinical systems was initiated. After that, health applications were developed by vendors to be run on integrated computers. After the evolution of LANs and WANs in computer ...

Experiment 2: Motion in one dimension

Introduction:
Motion of a body in one dimension is basic study in physic and to have knowledge about motion in one dimension it is necessary to be acquainted with two fundamental laws of physics. One of them is Newton’s laws of motion and another is Newton’s law of gravity. There are three laws in Newton’s laws of motion, but in this paper only Newton’s second law of motion has been discussed. If force is applied on a body, the same will move as a result of applied force on the body. The body will remain in same ...

Distinguishing Two Forest Communities in North Jersey by Tree Density, Species, Dominance, Importance, Diversity and Richness

Abstract
This is a study undertaken to compare and contrast richness, dominance and importance of sixteen tree species between two tree communities. The sixteen tree species have been listed in the appendix at the end of this paper. This study is a continuation of what was done earlier by ecology students in their previous year of study. The methods applied are absolutely the same, in order to make collected data comparable with each other. The three specific factors studies are relative dominance, relative density, and relative importance of the species occurring in these two forest areas.

Introduction

There are many advantages ...

Identification of mystery microbe based on its morphology and biochemical properties

The experiment was conducted to detect the species of a given mystery microbe. The microbe was subjected to a battery of tests in order to identify its physical and biochemical characteristics. Based on the tests, different possible microbe species were eliminated to finally arrive at the right conclusion. The possible microbes included Escherichia coli, Providencia alcalifaciens, Enterobacter aerogenes, Staphylococcus epidermidis, Klebsiella pneumonia, Micrococcus luteus, Serratia marcescens, Mycobacterium smegmatis, Sarcina aurantiaca, Pseudomonas aeruginosa and Bacillus licheniformis.
The first test conducted was to detect the Gram staining properties of the given microbe. This helped in identifying whether the given microbe had a thin ...

Abstract

The report presents the results of a microbiological experiment to confirm the hypothesis that as leftover food sits out over time, the number of bacteria in the food will increase. The study was undertaken to indicate the risk of bacterial contamination and the importance of proper storage technique. The study was performed using a liquid food (corn tortilla soup) which was exposed to the external environment at room temperature. The control group in our experiment was the same food stored in a zip lock bag and refrigerated.
The soup was tested over a period of time, which served as the independent variable, ...

Microbiology laboratory report

Abstract
Bacteriophages are intracellular parasitic viruses that infect bacteria to carry out their multiplication. During the lytic infection cycles, phages lyse the host cells forming a clear zone called plaque on the agar media. The experiment is aimed to measure the number of plaques created when the virus T4 infects the host bacteria and their genetic material integrates into the genetic material of the host cell. This happens because the E.coli becomes resistant to T4 bacteriophage. The T4 phage was diluted in a test tube and then E.coli bacteria was added in the tubes. The mixture was poured with soft ...