Social scientists have studied it‚ lawyers have tried to fix it and post-feminist society is over it. But women are still outnumbered by men in math‚ science and engineering fields. Most overt discrimination against women in the sciences has been reduced or eliminated in recent decades through legal‚ academic‚ corporate and government measures. But a climate that is less than fully friendly to women remains‚ and its texture is often still so taken for granted that it tends to be invisible. The
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Every step in this experiment has reasons behind its application. One determines the masses of the crucible and barium chloride hydrate for obvious data collection and calculation purposed. The heating of the sample slowly for 10 minutes is done to remove the water from the sample. A constant mass for the sample must be obtained so therefore it must be done slowly because if not you may loose mass from the sample. At the point where the crystalline solid changes to a powdery solid the sample must
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U‚ and C for the nucleotides guanine‚ adenine‚ uracil and cytosine) that directs synthesis of specific proteins‚ while many viruses encode their genetic information using an RNA genome. Some RNA molecules play an active role within cells by catalyzing biological reactions‚ controlling gene expression‚ or sensing and communicating responses to cellular signals. One of these active processes is protein synthesis‚ a universal function whereby mRNA molecules direct the assembly of proteins on ribosomes
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The cobalt (II) chloride is added with hydrochloric acid‚ which a pink solution is formed. When the test tube is placed in a water bath with 60 ‚ the solution turns from light pink to dark pink. This is because the cobalt(II) chloride dissolve in solution is an endothermic reaction which it tend s to form blue cobalt (II) chloride in the solution. The dark pink solution is formed instead of light pink because the dark pink
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SYNTHESIS OF SILVER NANOPARTICLES AND ITS CYTOTOXIC EFFECT AGAINST THP-1 CANCER CELL LINE 1 * Department of Biotechnology‚ Modern College‚ Shivajinagar‚ University of Pune‚ Pune‚ India. Mrs Rebecca Thombre email rebecca.thombre@gmail.com Telephone 9822224957 020 400966725 ABSTRACT: Nanotechnology is a field of science which involves the synthesis and applications of nanoparticles. Silver nanoparticles (AgNp) have applications in various fields due to their unique
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ISE: The Determination of Chloride Unknown: #34 I. Purpose: In experiment V‚ “ISE: The Determination of Chloride”‚ the concentration of an Unknown Chloride solution‚ and the Wt% of NaCl in a sample of celery salt‚ were both determined. To determine the concentration of an Unknown Chloride solution‚ a Calibration plot is first prepared. The Calibration plot is made by first measuring a series of known concentrations of Cl- (with the same activity of the unknown solution) and obtaining
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well as the density was calculated. The same process was performed to calculate the density of an unknown substance. The third part Section C 5-25% of sodium chloride was prepared by the instructor. For each percent concentration of sodium chloride a 25 mL was prepared. Weighing the graduated cylinder before and after the sodium chloride was transferred the density were calculation. Pre- Laboratory Questions: 1. A metal sphere weighing 15.45 g is added to 21.27 mL of water in a graduated cylinder
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Week #2 Post Lab 1.) Define the following: electrolyte‚ nonelectrolyte Electrolyte: A substance that dissolves in water to form solutions that conduct electricity. Nonelectrolyte: A compound that doesn’t dissociate into ions when dissolved in water. 2.) Using examples in the last link‚ draw beakers showing atomic scale representations of aqueous solutions of the following compounds. Classify each as an electrolyte or nonelectrolyte. * Ba(OH)2 (aq) * NH3 (aq) * C3H7OH (aq)
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Protein synthesis is one of the most fundamental biological processes. To start off‚ a protein is made in a ribosome. There are many cellular mechanisms involved with protein synthesis. Before the process of protein synthesis can be described‚ a person must know what proteins are made out of. There are four basic levels of protein organization. The first is primary structure‚ followed by secondary structure‚ then tertiary structure‚ and the last level is quaternary structure. Once someone understands
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Introduction: The purpose of this lab was to learn how to use salicylic acid to make aspirin. Aspirin is the most widely used over-the-counter drug in the world. The average tablet contains about 325 milligrams of acetylsalicylic acid with an inert binding material such as starch. Aspirin is used to relieve pain‚ reduce inflammation‚ and lower fever. Aspirin originally was derived by boiling the bark of the white willow tree. Although the salicin in willow bark has analgesic properties‚ purified
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