The effect of caffeine on typing speed‚ accuracy and heart beat 1. Introduction Caffeine is a substance found in coffee‚ tea and most sodas. When it is consumed‚ it is a mild stimulant. The energy drink‚ Monster‚ contains caffeine‚ which has the ability to manipulate adenosine (adrenaline)‚ a substance present in the brain that is used to transmit brain signals to different parts of the body. Adenosine causes an increase in alertness and awareness. Modern studies show that there is direct benefits
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sitting up. The sample included 408 women in a university hospital in Turkey. Women were randomly assigned to four groups in equal numbers of 102. Data collection and analysis. Data were collected through two instruments: Demographic and Pregnancy History Form and NST tracing. Main outcome measures were percentage of reactive NST and number of minutes for reactivity in each position. Results. There were significant (P < 0Æ05) differences among four groups. Supine position
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ENN103F/102/1/2013 Tutorial Letter ENN103F/102/1/2013 English for Academic Purposes ENN103F SEMESTER 1 Department of English Studies Correction on First Semester Assignment One for March 2013 Bar code DEAR STUDENTS OF ENN103F Please be advised that Assignment One on the printed Tutorial Letter 101/3/2013 on pages 12 - 14 has a number of both typographical and numerical mistakes. This happened as a result of a number of factors: the initial assignment reading was too costly for
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Biology Lab Report Research Question: Effects of pH on amylase activity Introduction: Amylase is an enzyme that is in human’s saliva as well as the pancreas. Enzymes are biological catalysts that speed up a chemical reaction. They break down complex molecules into simple ones. In this case‚ amylase converts starches (complex molecule) into simple sugars. That is why foods like potatoes for example‚ may taste sweet to us‚ because they contain starch. The optimum pH for pancreatic
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Quantitative Methods and Report Writing Tutorial 1 Zikmund Chapter 1 Pg 16: Q1‚ 10 Zikmund Chapter 5 Pg 102: Q2 Pg 103: Case 5.1 1. Which of the following organizations are likely to use business research? Why? How? a. Manufacturer of breakfast cereals b. Manufacturer of nuts‚ bolts and other fasteners c. The Federal Trade Commission d. A hospital e. A company that publishes business textbooks 10. Is it possible to make sound managerial decisions without business research? What advantages
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unshared pair of electrons. In the substitution reaction‚ the nucleophile donates an electron pair to the substrate‚ leading to the formation of a new bond to the nucleophile‚ while breaking the existing bond to the leaving group” (Solomons and Fryhle 99-102). The two types of nucleophilic substitution reactions‚ SN1 and SN2‚ are identified based on whether the different steps occur simultaneously (SN1) or in two separate steps (SN2). To synthesize the t-butyl chloride‚ the t-butyl alcohol goes through
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Monarch cycle Ergometer for three minutes. We tried to make sure that each subjects was able to keep the Monarch at around 60 as the speed limit. The last 15 minutes of the cycle‚ another subjects measured the rate by placing two fingers around the wrist and tested the radial artery to check for the Heart Rate‚ this was later documented on the Excel Sheet. Exercising Blood Pressure: After checking the Heart RAte the subject which was on the Monarch cycle for three minutes‚ the subjects then went back
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niggers and trash he works for!” (Lee pg.102). later as Scout and Jem are passing the house of Ms.Dubose Scout states “For a few minutes he simply went mad….he did not begin to calm down until he had cut the tops off every camellia bush Ms.Dubose owned……By that time I was shrieking‚ Jem yanked my hair‚ said he didn’t care‚ he’d do it again if he got a chance‚ and if I didn’t shut up he’d pull every hair out of my head‚ I didn’t shut up and he kicked me.”(Lee pg.102-103). This quote states that Scout was
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the neck it is sometimes more difficult to locate and so most people tend to measure it from the wrist. For a healthy person of my age a pulse rate between 60 and 100 is considered to be normal. When I was at rest my heart rate was 82 bpm (Beats per minute). This could be inaccurate due to being nervous though I took my pulse reading both manually and on a machine and it came back the same both times‚ which may increase the reliability of the
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Table 2: Temperature measurements. Water Temperature (°C) Temperature (°F) Temperature (K) Hot from tap 53 C 127.4 F 326.15 K Boiling 99 C 210.20 F 372.15 K Boiling for 5 minutes 101 C 213.8 F 374.15 K Cold from tap 25 C 77 F 298.15 K Ice water – 1 minute 10 C 50 F 283.15 K Ice water – 5 minutes 5 C 41 F 278.15 K Data Table 3: Mass measurements. Object Estimated Mass (g) Actual Mass (g) Actual Mass (kg) Pen or pencil 2 g 7.2 g 0.0072 kg 3 Pennies 4 g 7.6 g 0
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