Determination of Calcium ions in milk using titration. Background Calcium is a mineral which is essential to the human body. In fact 1.5% of the human body is made up of calcium‚ and not just the obvious uses such as bone and teeth formation but it is also a vital factor in many enzyme reactions‚ for example blood clotting. It also partakes in the regulation of the hearts rhythm. Lack of the crucial mineral can result in the build up of cadmium and lead‚ both of which are toxic. along
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THE EFFECTS OF HEAVY METAL MUSIC ON AGGRESSION IN COLLEGE STUDENTSSHALEEN L. COSSDEPARTMENT OF PSYCHLOYOLA UNIVERSITY NEW ORLEANSSponsored by: MUKUL BHALLA (bhalla@loyno.edu) ABSTRACT Abstract The purpose of the present research was to examine the effect of heavy metal music on levels of aggression in college students. A 30-item questionnaire was created by the researchers. The questionnaire measured aggression by means of a self-reported scale of levels of aggression in response to potentially
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Identification of A Mixed Culture Unknown An experiment such as this one serves the purpose of allowing us‚ the students‚ to apply what we already know about any organism and any laboratory procedure to the difficult task at hand. It is possible to identify a mixed culture by running familiar experiments on the unknown bacteria and taking information already known about specific bacteria and applying it to the results. This helps to slowly eliminate any bacteria that do not correspond with the
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Title: Specific Heat Capacities of Metals Experiment Date: 3/28/2012 Report Date: 4/4/2012 Purpose: The purpose of the lab is to measure the specific heat capacities of aluminum‚ steel and brass. Theory: The amount of heat (ΔQ) required to change the temperature of an object is proportional to the mass (m) of the object and the temperature change (ΔT) of the object. ΔQ= cmΔT where c is called as the specific heat capacity of the material. In the calorie units system the unit of quantity
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Investigation - Solution Colour and Ion Concentration Aim: To investigate whether solution colour can be used to reliably determine the concentration of coloured ions in a solution. Hypothesis: the concentration of permanganate ions in the solution is inversely proportional to the percentage transmission of light through the solution. Dependent variable: concentration of permanganate ions. Independent variable: percentage transmission of light through the solution. Equipment: 20 ml
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2.3.2 Counter Ion “Most bacterial cell walls are charged with a negative charge‚ so most antibacterial polymers must be charged with a positive charge to facilitate the adsorption process. The composition of the counter ion‚ or polymer-linked ions‚ is used to balance the charge‚ it also affects the antibacterial activity. The counter ion has positive charge‚ which is a strong ion-pair with the polymer will inhibit the antibacterial activity because it will prevent the polymer from interacting with
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I. Title Identification of an Unknown Plasmid In this experiment‚ we determined the phenotypic capability of an unknown plasmid along with its size. With the use of gel electrophoresis‚ we analyzed the gel photograph by using a standard DNA marker‚ Lambda HindIII‚ and came to a conclusion based on our results. II. Abstract Two experiments were done to identify an unknown plasmid. The success of these experiments came from the use of modern day technology involving gel electrophoresis
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Good evening Dr. Behizadeh‚ I hope this email finds you well. I first would like to start out by saying that it was a privilege to be in your class last semester and I really learned a lot. I am writing you this email today because I have an escalating dilemma that I need some resources on. I recently received a job opportunity from a private school that I am currently working at‚ and things seemed to be going well. At the beginning of the school year I was receiving complaints about
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Jacqueline Funes Professor Rosemblatt March 18‚ 2015 Midterm: Identifications 1.The Haitian Revolution: In 1791‚ the Haitian Revolution began. The slaves‚ who wanted revenge and freedom‚ revolted and burned plantations and executed Frenchmen. The people in Cuba knew of this happening and the “fear of the black” developed. The non-blacks did not want anything similar to the Haitian Revolution to start in Cuba. While innumerable slave ships came in from Africa‚ the citizens of Cuba became more
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wound healing and recovery especially in severely wounded patients. One of the approaches for treating wounds is the use of biocompatible composites incorporated with antibacterial agent to improve wound healing and diminish the wound infection risk 2. Ion-exchange zeolite has gained attention due to its renewable nature‚ good biocompatibility and excellent
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