Science
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4,610 Essays on Science. Documents 3,751 - 3,780
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Supplementary Chemicals
Acetone Acetone is a colourless liquid with a sweet odour. It is readily soluble in water, ethanol, ether and many other substances. The melting point is -95 C and boiling point is 56 C. It is highly flammable and explosive. Acetone is commonly found in nail polish. Since it is heavier than air, it travels on the ground. The vapour it gives out will irritate the eyes; damage the nervous system, liver, kidneys, gastrointestinal tract
Rating:Essay Length: 382 Words / 2 PagesSubmitted: December 13, 2009 -
Supply V. Demand: False Perceptions That Impact Crude Oil Pricing
Crude oil, being the leading provider of energy on this planet, is closely monitored, forecasted and heavily traded in the world market. The International Energy Agency (IEA) is one of the noted agencies in charge of accounting for current supply and estimating oil future demand. As Sohbet Karbuz reports in his article, Confessions of a Statistician, the accounting of these fundamentals is complex, requires significant guess work and be subject to fraud and misreported
Rating:Essay Length: 868 Words / 4 PagesSubmitted: March 10, 2010 -
Surgery: Treating the Severely Obese
Surgery: Treating the Severely Obese Lead in: According to the World Health Organization, globally there are now more than 1 billion overweight adults, and at least 300 million of them are obese. During the last 40 years, obesity has reached epidemic proportions. There are more obese people each year, and the severity is increasing. In the United States alone, 300,000 deaths are associated with obesity. Thesis: Many obese people fail diet after diet. For
Rating:Essay Length: 688 Words / 3 PagesSubmitted: November 18, 2009 -
Surgical Mishaps
Surgical Mishaps A majority of Americans have undergone surgery at some point in their lives. Doctors or nurses generally explain to the patients and their families how the procedure will be carried out, the risk factors, and the chances of recovery. What isn’t addressed is the rare and most unpredictable of surgical mishaps, a surgical fire. This can happen even during the most routine of procedures. Though the chances of a fire erupting on or
Rating:Essay Length: 662 Words / 3 PagesSubmitted: November 15, 2009 -
Surigao Youth Center: A Second Home for Everybody
SURIGAO YOUTH CENTER: A Second Home for Everybody Surigao Youth Center (SYC) was established in the year2006.It was a project of the population Commission office headed y Jupiter J. Correos and under the City Government headed by Hon. Mayor Alonso S. Casurra, City of Surigao .It was founded for the reason that to help the youth of the City of Surigao. Its Vision is to develop responsible young men and women of Surigao City with
Rating:Essay Length: 508 Words / 3 PagesSubmitted: June 1, 2010 -
Survey on the Aircraft Structure
INTRODUCTION: Engineering or Technician during routine inspection / check finds the damage on the upper part of an outer starboard of aircraft main plane, entered the details in the log book and photographed the damage which shows the details of damage which is useful in future. To classify the type and extent of damage, visual inspection was carried out which is not satisfactory and the damage was suspected to be hidden crack. Therefore initial preparation
Rating:Essay Length: 1,117 Words / 5 PagesSubmitted: July 28, 2014 -
Survey on the Aircraft Structure
INOCLAV DR NO : DRP-615-08 GENERIC : CO-AMOXICLAV BRAND : INOCLAV STRENGTH : 500 mg/125 mg FORM : Film-Coated Tablet COMPANY : Lloyd Labs Inc Co-amoxiclav is used for bacterial infections, such as some respiratory infections, or infections of the urine, skin, bones or mouth. It is also used to prevent an infection from occurring if, for example, you are having an operation and you are at particular risk of getting an infection. Type of
Rating:Essay Length: 499 Words / 2 PagesSubmitted: July 31, 2014 -
Survey Research
I f we look at the assignment/survey, a proper analysis requires us to asses all the choices made by the researchers who designed it. What are the necessary questions we need to ask ourselves? How does the setting or scene of a �firm’ instead of an �individual’ as a unit of analysis, influences our research design? How to deal with the content of the survey and minimize the survey errors? These are all questions that
Rating:Essay Length: 992 Words / 4 PagesSubmitted: January 20, 2010 -
Svante August Arrhenius
Svante August Arrhenius (1859-1927), born in Vik, Sweden, is often recognised as one of the founding fathers of modern physical chemistry. For his theory of electrolytic dissociation, Arrhenius received the Nobel Prize in chemistry in 1903. Furthermore, it is believed that his most remarkable contribution was his model of the greenhouse effect. Svante Arrhenius is mainly known for his equation representing the temperature dependence of chemical reaction rates: k=A exp(-E/RT) This equation with k being
Rating:Essay Length: 712 Words / 3 PagesSubmitted: April 16, 2017 -
Svkm's Narseemonjee Institute of Management Studies
SVKM's NarseeMonjee Institute of Management Studies (NMIMS) School of Distance Learning Subject: Information Systems for Managers Programme: All Semester: I Marks: 30 Q1. Define the term SYSTEM. Requirement analysis and definition is the foundation for any systems development. It is independent of the approach you take for design. Explain this statement with example. Ans: An information system (IS) - or application landscape - is any combination of information technology and people's activities using that technology
Rating:Essay Length: 423 Words / 2 PagesSubmitted: May 7, 2011 -
Swedish Insects
Swedish Insects Faulkner 'Competitve and Corporate Strategy - Irwin - 1996). It's another suitable way to analyze a company's competitive position in comparison to the offerings of competitors. As with Porter's Generic Strategies, Bowman considers competitive advantage in relation to cost advantage or differentiation advantage. There are six core Faulkner 'Competitve and Corporate Strategy - Irwin - 1996). It's another suitable way to analyze a company's competitive position in comparison to the offerings of competitors.
Rating:Essay Length: 659 Words / 3 PagesSubmitted: February 1, 2010 -
Sweeteners
Sweeteners Saccharin is an organic petroleum-based compound that is three to five hundred times sweeter than sucrose. It is non-nutritive because the human body is unable to metabolize the foreign chemical. Saccharin does not contribute calories; for this reason it is commonly used in diet foods. "The obese [feel] that saccharin is their lifeline to slimdom, and diabetics [claim] it is essential to control their blood sugar" (Brody 482). The same people who consume saccharin
Rating:Essay Length: 927 Words / 4 PagesSubmitted: November 30, 2009 -
Swing It Lab
Swing It Lab Purpose: 1) To determine the acceleration due to gravity, using the pendulum formula 2) To determine the effects of varying the displacement of the pendulum on the results Materials: string a nail on ceiling or a hanger running shoe duct tape stopwatch Procedure: 1) The materials were gathered. 2) The end of the string was tied to a horizontal bar (stable). 3) The other side of the string was tied to
Rating:Essay Length: 492 Words / 2 PagesSubmitted: November 21, 2009 -
Swordfish
Swordfish By: Alicia Grant The swordfish (Xiphias gladius Linnaeus 1758), also called the broadbill, is the only member of the family Xiphiidae. As its name implies, this magnificent fish is characterized by an upper jaw that extends to form a flat, sharp-edged "sword." The swordfish is a beautiful streamlined with the upper jaw carried forward into its sword fish beak, flattened from top to bottom and oval in section. The front dorsal fin is high,
Rating:Essay Length: 284 Words / 2 PagesSubmitted: November 10, 2009 -
Swordfish
Tina Valler Period 5/6 The swordfish was first described in 1758 by Linnaeus. It was given the name Xiphias gladius which is still used in present day. The Family of this fish is Xiphiidae, Order is Perciformes, and the Class is Actinopterygii. When it is translated into English, the Latin term gladius means "sword", referring to the long sword-like bill the fish possesses. Some of the English common names include broadbill, broadbill swordfish, and many
Rating:Essay Length: 1,087 Words / 5 PagesSubmitted: February 8, 2010 -
Synthesis
While many applications exploit the spatial confinement and field enhancement in the vicinity of plasmonic metal nanostructures, much less attention has been given to the field enhancement that occurs inside the metal. One phenomenon that hinges on this effect is the photoemission of electrons from nanostructured metals after excitation by ultrashort laser pulses. Several studies have investigated such ultrafast photoemission from planar films,(4) islandised metal films(5) and metallic gratings.(6, 7) In each of these studies,
Rating:Essay Length: 423 Words / 2 PagesSubmitted: February 15, 2016 -
Synthesis of an Orthopedic Cement by the Addition of Anhydrous Calcium Hydrogen Phosphate to Calcium Sulfate Hemihydrate
Abstract Commercially available calcium sulfate hemihydrate (CSH) powders were mixed with anhydrous calcium hydrogen phosphate (monetite) in order to develop a novel resorbable orthopedic cement. The setting solution, distilled water, converted the CSH into gypsum as proven by an X-ray diffraction. This conversion into gypsum is what gives the cement its high compressive strength. The addition of monetite gives the cement a high bioresorbablity and remodeling ability that is not present in the pure CSH
Rating:Essay Length: 855 Words / 4 PagesSubmitted: February 15, 2010 -
Synthesis of Asprin Lab Report
Synthesis of Asprin Lab Report Preston Pegram Lab Partner: Adam Ziegler Niedenzu Block III 16 December 2015 Introduction: The purpose of this lab is to make a small sample of acetylsalicylic acid, commonly known as aspirin, through an esterification reaction between salicylic acid and acetic anhydride. In an esterification reaction, esters form from carboxylic acids and alcohols in the presence of acid, which acts as the catalyst. Aspirin is a mild analgesic useful in the
Rating:Essay Length: 1,412 Words / 6 PagesSubmitted: January 3, 2016 -
Synthesis of Dibenzalaceton
Synthesis of Dibenzalacetone Objective :We want Synthesis Dibenzalaceton from Aceton and Benzaldehyde by Crestylization. Caculation: Mass Of Funeral Plus Product: 7.9182 g/mol Mass Funeral : 7.0582 g / mol Mass Of Product: 0.86 g/mol Mass of Aceton : 0.058g/mol O.o58g: 58.3g/mol= 9.94 mol Aceton 0.216g:106.13g/MOL=o.0020mol Benzealdehyde - Limted Reagent 0.0020molx234.30 g/mol =0.4686 g diBenzalaceton Mass of Benzelaldeheid : o.216 g Percent Yield: (Actual Yield : Theorical Yield)x100% = (0.86g: o.4686g)X100%= 40 % Percent Yield
Rating:Essay Length: 473 Words / 2 PagesSubmitted: February 14, 2010 -
Synthesis of Dibenzalacetone
Experiment2: Preparation of Dibenzalacetone Aim: Using the cabon-cabon bond making ability in carbonyl chemistry, Dibenzalacetone is synthesized from 2 equivalent of benzaldehyde and 1 equivalent of acetone in a base catalyzed reaction. Physical Data1: *detailed risk and safety phrases are attached. substance Hazards, risks and safety practices MW (g/mol) Amt. Used Mol. mp (K) bp (K) density(g/cm^3) acetone R11, R36, R67, S9, S25, S26 58.08 0.24 g 0.004 178.2 329.4 0.79 benzaldehyde R22, S24 106.13
Rating:Essay Length: 1,231 Words / 5 PagesSubmitted: November 20, 2009 -
Synthesis of Gold Nanoparticle
Synthesis of Nanoparticles for Bioimaging Abstract The goal was to prepare nanoparticles in microemulsions. The experimental procedure was learned by preparing silica and gold nanoparticles. Particle characterization was done using Dynamic Light Scattering. The size of the silica and gold nanoparticles was found to decrease with increased w/o. The aim of this experiment was to synthesis fluorescent nanoparticles and gold nanoparticles. These are commonly used in bioimaging. Introduction As researchers continue to develop a wide
Rating:Essay Length: 810 Words / 4 PagesSubmitted: March 17, 2010 -
Synthesis of Mdma
INTRODUCTION: All information here is to be used at your own risk. The procedures documented in this file, if carried out by unlicensed individuals would violate laws against controlled substances in most countries and could result in criminal charges being filed. If carried out by individuals unskilled at chemistry they could result in serious bodily harm. MDMA ("Ecstasy") is a semi-synthetic compound which can be made relatively easily from available precursors. Synthesis instructions exist which
Rating:Essay Length: 1,710 Words / 7 PagesSubmitted: January 23, 2010 -
System and Network Monitoring
System and network Monitoring INTRODUCTION As computers have gotten smaller and networks have gotten bigger, most of us have found ourselves worrying about more and more machines and network devices. In the old days, the typical installation of a small number of central servers, a larger number of ASCII terminals, and a few point-to-point serial or network links meant that a lot of system monitoring could be handled by periodic manual inspection or a few
Rating:Essay Length: 471 Words / 2 PagesSubmitted: January 19, 2010 -
System of Inquiry
Running Head: System of Inquiry System of Inquiry University of Phoenix Brendalyn Washington Ethics in Management PHL/323 Instructor, April Miller June 21, 2008 System of Inquiry Having a system of values, beliefs, and integrity written out in a document is vital to show maturity, acceptable behavior and responsibilities, high standards of practice, also a vehicle to demonstrate a business’s identity. There are codes of ethics in both personal and business perspectives. The development of a
Rating:Essay Length: 1,578 Words / 7 PagesSubmitted: June 10, 2010 -
Systemic Lupus Erythematosus
1) Systemic lupus erythematosus ("SLE") is a very serious, usually incurable and often fatal disease resulting (at least in large part) from production of a whole series of different anti-self antibodies, including antibodies against DNA (both double stranded and single stranded), phospholipids, collagen, histones and RNA. Note the contrast with most autoimmune diseases, in which only one self-antigen is attacked! SLE should not be confused with "Lupus vulgaris" which is a skin form of tuberculosis,
Rating:Essay Length: 269 Words / 2 PagesSubmitted: March 8, 2010 -
Systemic Lupus Erythematosus
Systemic Lupus Erythematosus (SLE) is a chronic, usually life-long, potentially fatal autoimmune disease characterized by unpredictable exacerbations and remissions with protean clinical manifestations. In SLE there is a predilection for clinical involvement of the joints, skin, kidney, brain, serosa, lug, heart and gastrointestinal tract. Women and minorities are disproportionately affected and SLE is most common in women of child-bearing age although it has ben reported in both extremes of life (e.g. diagnosed in infants and
Rating:Essay Length: 382 Words / 2 PagesSubmitted: March 10, 2010 -
Systemic Lupus Erythematosus Case Study
OBJECTIVES At the end of this Nursing Case Study, the student-nurse will be able to: General Objective:  Present the condition called Systematic Lupus Erythematosus in relation to the patient’s clinical manifestations, treatment and general health status Specific Objectives:  Identify the causes of Systematic Lupus Erythematosus that can be traced in relation to the case/condition of the patient  Explain the nursing care performed to the patient with Systematic Lupus Erythematosus  Distinguish the
Rating:Essay Length: 3,404 Words / 14 PagesSubmitted: March 30, 2010 -
Taiwan Facts
Taiwan, officially Republic of China, island (in 1994 est. population was 21,299,000), 13,885 sq mi, in the Pacific Ocean, separated from the mainland of S China by the 100-mi-wide (161-km) Taiwan Strait. The capital is TAIPEI. Other major cities include KAOHSIUNG, Tainan, Taichong, and Chilung. About one quarter of Taiwan's land area is cultivated; rice, wheat, sugarcane, and sweet potatoes are the most important crops. In the 1970s industry replaced agriculture as the major export
Rating:Essay Length: 339 Words / 2 PagesSubmitted: November 25, 2009 -
Tansition Metals
Name Symbol Electron Configuration Scandium Sc 1s2 2s2 2p6 3s2 3p6 3d1 4s2 Titanium Ti 1s2 2s2 2p6 3s2 3p6 3d2 4s2 Vanadium V 1s2 2s2 2p6 3s2 3p6 3d3 4s2 Chromium Cr 1s2 2s2 2p6 3s2 3p6 3d5 4s1 Manganese Mn 1s2 2s2 2p6 3s2 3p6 3d5 4s2 Iron Fe 1s2 2s2 2p6 3s2 3p6 3d6 4s2 Cobalt Co 1s2 2s2 2p6 3s2 3p6 3d7 4s2 Nickel Ni 1s2 2s2 2p6 3s2 3p6
Rating:Essay Length: 513 Words / 3 PagesSubmitted: December 15, 2009 -
Taoism and Chinese Medicine
Taoism and Chinese Medicine Taoism is an ancient religion usually associated with the Chinese culture. Sill practiced widely today, Taoism is accepted as more of a philosophy, rather than a religion. Currently, 20 million individuals observe Taoism as their religion. (Robinson, 2008) Since Taoists incorporate these teachings into their daily lives, through traditions and culture, connections between these are easily made. Chinese medicine is an aspect of Chinese life and culture, where Taoist principles
Rating:Essay Length: 1,000 Words / 4 PagesSubmitted: May 13, 2010