easily be altered and can cause a problem that would ruin the evidence permanently causing it to jeopardize the case. Contamination can occur by either the number of personnel at the scene or the environmental conditions. When dealing with a death investigation it might be hard to prevent the amount of personnel. The first ones to arrive on the scene would be the first responders‚ along with paramedics‚ then followed by the investigators‚ coroner or medical examiners‚ at times the prosecuting attorneys
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Investigation of the rate of photosynthesis of pondweed. Research question: How does the concentration of sodium bicarbonate relate to the amount of oxygen produced by Elodea (Canadian pond weed) in the process of photosynthesis? Hypothesis: If there is an increase in concentration of sodium bicarbonate the amount of oxygen produced will increase because the sodium bicarbonate concentration will increase the carbon dioxide levels. Independent variable- Concentrations of sodium bicarbonate (8%
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Mayceemae M. Barnuevo CHEM 17.1 13L Group 1 February 7‚ 2014 February 19‚ 2014 Exercise 12 SOME INVESTIGATIONS ON THE CORROSION OF IRON I. Introduction Metals undergo natural destruction that allows a spontaneous deteriorating reaction where they return to their original state from where they are obtained upon contact with the surrounding‚ particularly when reacted to oxygen. Such phenomenon is known as corrosion (Zumdahl‚ 1998). This leads the surface of the materials to rust in due time. Usually
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Utilizing the Lab Results PS2200 - Criminal Investigation Unit 04 Assignment 01 As the lead homicide investigator for this case I had recently learned that the crime lab has concluded that the finger print that was recovered belonged to the boyfriend‚ they were from a piece of notebook paper found under the body of the victim. Interviews are conducted in criminal cases for the purpose of gathering information from people who have‚ or may have‚ knowledge needed in the investigation. (Swanson‚ Chamelin
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Application of Lean Manufacturing Principles for Process Time Reduction in Conveyor Pulley Manufacturing Shyam Rangrej1‚ Kaustubh Samvatsar1‚ Pinkal Rana1‚ Purvi Chauhan2‚ Saurin Sheth3 1UG Students of Production Engineering Department‚ 2Assistant Professor Birla Vishvakarma Mahavidyalaya‚ Production Engineering Department‚ V.V.NAGAR-388120 Birla Vishvakarma Mahavidyalaya‚ E-mail: shyamrang24@gmail.com V.V.NAGAR-388120 E-mail:pdchauhan@bvmengineering
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Introduction Chemical kinetics is the study of reaction rates. A reaction rate is the speed of the change in either reactants or products over a period of time. General kinetic rate equation is: Where [A] and [B] are the concentration of the species in the reaction. The variable k is the rate constant‚ which is a function of time and catalyst presence. The variables m and n are the order of reaction for their respective species concentration. The higher the value of the reaction order the
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In this lab we are going to be observing the decomposition of piglets over a month’s time. There are theory questions that have been given to us before and after the lab. We look back at our original theory to see where we went wrong‚ and then correct it. The lab was disgusting‚ surprising‚ and very interesting. The first questioned to be answered is which piglet decomposes faster‚ a piglet that is in its natural state‚ that is burnt‚ that is buried‚ and that is buried in a wooden box? With
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History 10 Diploma Prep: Historical Investigation - Essay Karl Marx and his developed theory of Marxism played a vital role in influencing Lenin’s efforts to overthrow the Provisional Government eventually leading to the Russian Revolution of 1917. “A spectre is haunting Europe - the spectre of Communism.”1‚ the opening sentence to The Communist
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Extended Experimental Investigation Year 11‚ Microbiology BYRNES‚ Olivia Extended Experimental Investigation Year 11‚ Microbiology BYRNES‚ Olivia Abstract The following report discusses whether the bacteria E.coli K12 are able to gain resistance to nickel and aluminium over generations. It discusses the importance of bacteria and how it is used throughout everyday life. It discusses that some bacteria is used for human applications and shows how it can be helpful in certain situations
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LAW TONG &AIDEN 2013/9/23 AP PHYSICS B Mr. Moss THE LAB OF ATWOOD Procedure: The purpose of this experiment was to verify the predictions of Newton’s Law for an Atwood machine‚ a simple machine constructed by hanging two different masses and from a string passing over pulleys and observing their acceleration.. Newton’s Law predicts that the acceleration should be proportional to the difference between the masses and proportional to their sum‚ where = 9.8 m/s2 is the
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