A variety of procedures are used by psychologists to study the functions of different areas of the brain. Some of them are very old methods and outdated; some of them are most recent in origin and frequently used by modern investigators. The methods help us to study the localization of the functional areas of the brain. One of these methods is the stimulation method. A specific part of the brain may be stimulated either by electric current or by chemicals. Through electrical stimulation‚ we can
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A Lab 10.2 Determining the Concentration of Ammonia in Window Cleaner Solution Design (D) Aim To determine the concentration of ammonia‚ NH3‚ in the commercial window cleaner solution Background Window cleaner contains ammonia‚ NH3‚ a weak base‚ which helps remove dirt from glassware. The concentration of ammonia in the window cleaner solution varies by brands. Titrating the window cleaner solution with an acid of known concentration allows us to calculate the concentration of the ammonia
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Does concentration affect the speed of chemical reactions? Problem: We are proving that “concentration” (the amount of reactants) is one of the things that can affect the speed of chemical reactions. We are also finding a way to keep the lid on the film canister for the longest period of time. We are using vinegar and water as reactants and changing the concentration every time to see the difference between the rates of reactions speed. Materials: - 1 graduated cylinder - 1 film canister
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THE TEACHING METHOD USED BY THE TEACHERS AND ACADEMIC PERFORMANCE OF THE HIGH SCHOOL STUDENTS OF ROOSEVELT COLLEGE RODRIGUEZ DURING SCHOOL YEAR 2011-2012 A Research Paper Presented to MRS. MARIFE D. BALIWAS‚ M.A.Ed. Faculty of Roosevelt College Rodriguez Rodriguez‚ Rizal In partial fulfillment of the requirements For the Course Thesis Writing Research II By: Philbert S. Carmona Jr. Cole Isaac M. Gaspar Issey G. Hashimoto Julli Elaine J. Cabal
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What could you live without? Walking down the hallway‚ I was thinking about the topic “What could you live without” and I couldn’t think of many things. Things that we used in our life basically charge an important role of a human society. For example‚ foods‚ water‚ shelter‚ smart phone‚ clothes‚ computers and etc. As I was reading “What could you live without?” by Nicholas Kristof‚ it prompted a lot of ideas. I looked around my house and all the stuffs that I have is the stuff that we need it
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world be better off without‚ and why? One major substance in the world can change your life forever. The most popular invention that I feel the world can go without is Cocaine. This drug can cause much turmoil in your life. Just one try and you can become an addict. An addiction is a habit that can’t be broken unless you have assistance. Cocaine can cause you to have health issues‚ family issues and cause you to illhusinate. Cocaine is a white substance sold on the street. This is a drug that can
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Nowadays television has become an essential thing in every family. Televisions have sure play an important role people’s everyday live where some actually plan their time in front of television for their favorite shows. So could we actually live without tv? My answer is yes. First of all‚ there are many alternatives for television‚ such as internet. With the latest technology‚ we can easily find the information or entertainment we need from interest. For example‚ you would like to know more about
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This grinding machine is suitable for grinding and scattering the materials with coarse and hard particles or materials with pretended thickness phenomenon. After ground by this equipment‚ the material has even granularity and fine particles. In addition‚ it is also able to evenly mix several different materials so that it has been widely used in coating‚ paint‚ rubber‚ abrasive‚ ceramics‚ ore‚ coal‚ metal powder‚ hard alloy‚ magnetic materials and other materials. Generally speaking‚ there are
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I. Abstract This experiment aimed to determine the composition of Ni2+- ethylenediamine (en) complexes through Continuous Variations method as well as the number of ligands (n values). This nondestructive method is preferred in determining the amount of complexes present which will also not disrupt the equilibria. 0.3M concentrations of nickel sulfate hexahydrate and ethylenediamene are mixed at certain stoichiometric ratios of 0.3‚ 0.4‚ 0.5‚ 0.6‚ 0.7‚ 0.8 and 0.9 to form several complexes. Using
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equal opportunities of being chosen. Another it requires minimum advance knowledge of the population. And the key factor of simple random sampling is its representativeness of the population. c. Disavantage : However‚ sometimes random sampling method application impossible in practical terms. First‚ it is difficult to be able to have a complete list of all the objects in the target population. For example‚ when you want prospective study on the injuries caused by traffic accidents‚ we can not
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