Science
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4,609 Essays on Science. Documents 2,641 - 2,670
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Microorganisms
Microorganisms are referred as predominant source of commercial enzyme (Wiwapat et al., 2002, Kvesitadze, Kvesitadze 1990, Kutateladze et al., 2009). Due to diverse spectrum of applications enzyme production now became a multi-billion dollar business (Bhat, 2000). The market of the technical enzymes showed great diversity both in terms of the applications as well as the consumption. It has been evaluated that global sale of enzymes was $1.7–2 billion in 2005 which is expected to grow
Rating:Essay Length: 2,468 Words / 10 PagesSubmitted: September 7, 2014 -
Microscale Preparation of Methyl Orange
Microscale Preparation of Methyl Orange Conner Page | Background and significance The dyeing of fabric has been done for thousands of years but, it wasn’t until 1876 that Otto Witt made the first attempt to interpret color of dyes in terms of chemical structures. Witt proposed that dyes consist of conjugated P-bonded systems, chromophores, and salt forming groups, auxochromes, which are polar substituents that would modify color. A chromophore is an unsaturated, electron withdrawing group
Rating:Essay Length: 3,173 Words / 13 PagesSubmitted: May 7, 2015 -
Microwave Oven Inventor
Before 1947, nobody could heat water, melt butter, or even more popular, make popcorn! All of these ideas I just said can basically be only made with a microwave oven. To be more surprised, this invention was very accidental. Percy Lebaron Spencer invented the microwave oven. Percy Lebaron Spencer was born on July 19, 1894 on a Thursday in Howland, Maine. Percy had a rough and tough childhood. His father died when he was just
Rating:Essay Length: 442 Words / 2 PagesSubmitted: May 25, 2010 -
Mid-Term Break by Seamus Heaney
Tony Attwood Curtis Harrell ENGL 1023 9:30-10:45 T,TH Pg. 1 Mid-Term Break Response Essay In the poem Mid-Term Break by Seamus Heaney, he talks about an experience of a young man coming home from college because his younger brother has passed away in a car accident . This poem reminds me of when I had to go home my first year of college because my best friend from childhood passed away from an unexpected accident.
Rating:Essay Length: 1,349 Words / 6 PagesSubmitted: December 24, 2009 -
Milk and Rennin
Research into Enzymes – For Biology Rennin Rennet, substance found in the gastric juices of young milk-drinking mammals. Rennet contains a milk-coagulating enzyme, called rennin or chymosin, the active principle of rennet preparations used in making cheese and junket. Rennet extracts are commercially prepared from the inner lining of the fourth stomach of calves. Enzymes Enzymes are large proteins that speed up chemical reactions. In their globular structure, one or more polypeptide chains twist and
Rating:Essay Length: 1,734 Words / 7 PagesSubmitted: November 27, 2009 -
Mind and Brain
The brain is the control center for many actions that occur in the body. Its ability to conduct complex processes is due to the interconnecting of its 100 billion neurons. Neurons are able to communicate with each other through the neurotransmitters that are released at specialized junctions called synapses. These synapses are found in two locations where the pre-synaptic terminal is found at the tip of an axon and the post-synaptic terminal is on the
Rating:Essay Length: 660 Words / 3 PagesSubmitted: May 26, 2010 -
Mineral Requirements of Plants
With the worlds population growing constantly quicker and more reliable ways to produce foods need to be made. Through hydroponics more plants and crops can be created in a shorter amount of time. “Hydroponics is an excellent method of conducting research with controlled conditions of nutrient availability.” The problem is that if the exact amount of minerals are not used the produce may have negative side effects or unwanted results. Through the research of
Rating:Essay Length: 730 Words / 3 PagesSubmitted: December 10, 2009 -
Miracles on a Cellular Level
Miracles on a Cellular Level Medical science has grown by leaps and bounds over the course of the past few years. While some breakthroughs are hailed as tremendous accomplishments, others are seen under a much more scrupulous light. Stem cell research has taken its place at the front lines of the controversy. In past years the term, “stem cell,” has appeared frequently in various publications. The practice of stem cell research has come under fire
Rating:Essay Length: 3,140 Words / 13 PagesSubmitted: February 1, 2010 -
Misconcepualiztion of Hormone
MISCONCEPUALIZATION OF HORMONE RESEARCH Hormone research has been greatly influenced by cultural assumptions about the dimorphism of gender. Much of the scientific data produced and taken as ‘knowledge’ reaffirms social ideologies already thought to be true and uses this data to essentially prove these ideas. In the case of hormone research, ideas about the innate differences between males and females were imposed upon the scientific methodologies and the conclusions made. The misconception of estrogen
Rating:Essay Length: 956 Words / 4 PagesSubmitted: May 7, 2010 -
Miss
Aim To investigate the resistance of a wire using the equation V=IR Prediction I predict that resistance will be directly proportional to the length of the wire. *P.6a/P.8a Apparatus • Voltmeter • Ammeter • Piece of wood • Copper wire (100cm) • Crocodile clips • Connecting wires • 2 Cells Diagram Method • I am going to have my experiment all set out with the apparatus as in the diagram above. The copper wire of
Rating:Essay Length: 587 Words / 3 PagesSubmitted: December 21, 2009 -
Mistake
What was I thinking As I sit here I can’t seem to find the words to express my feelings to you in this letter. On that night I let my emotions take over my better judgment. I was ignorant in thinking of the consequences before my action. I can’t deny what I did no matter how much I wish I can go back in time to fix my mistake, but unfortunately that chance will never
Rating:Essay Length: 778 Words / 4 PagesSubmitted: December 28, 2009 -
Mitigation Strategies and Solutions: Energy Conservation
Energy Conservation 1 Mitigation Strategies and Solutions: Energy Conservation Katie Shuker Axia College of University of Phoenix Energy Conservation 2 Energy conservation is the practice of decreasing the quantity of energy used while achieving a similar outcome of end use. This practice may result in increase human comfort, personal security, national security, environmental value, and financial capital. Energy conservation is a reduction or elimination of unnecessary energy use. There are many activities that people can
Rating:Essay Length: 1,555 Words / 7 PagesSubmitted: May 13, 2010 -
Mitigation Strategies and Solutions: Energy Conservation
Mitigation Strategies and Solutions: Energy conservation SCI/275 Energy Conservation Energy conservation is an important topic that needs action to be taken immediately. If federal and local governments, the Environmental Protection Agency, industry, and individuals do not start to conserve energy then it will just continue to shorten the life expectancy of the fossil fuels we currently use. In addition, those fossil fuels release emissions that are harmful to the environment. There are several ways in
Rating:Essay Length: 2,374 Words / 10 PagesSubmitted: May 14, 2011 -
Mitosis and Meiosid
As viewed from a human perspective, nature has done some ingenious engineering to overcome some of the obstacles it has faced. Take the evolution of sex, for instance. To make the move from asexual to sexual reproduction, nature took a system by which parent cells reproduced simply by dividing (asexual reproduction) and altered it to allow two parent cells to combine to create offspring (sexual reproduction). It met this challenge by devising (again, speaking from
Rating:Essay Length: 1,665 Words / 7 PagesSubmitted: March 5, 2010 -
Mixer and Nozzle Process Description
Mixer The hot air that is forced out of the combustor and through the turbine continues to exit the engine at the rearward. Before exiting however, this air must be mixed with the cooler bypass air that did not go through the compressor and combustor. These two airstreams are mixed in order to quiet the engine. To understand how air can create noise, first consider the way water splashes and makes noise when a wave
Rating:Essay Length: 806 Words / 4 PagesSubmitted: November 30, 2009 -
Modeling of a Cross Flow Heat Exchanger
Cross Flow Heat Exchanger Experiment By Andres Rodriguez Abstract The design project of the group was to create an experiment for Thermo/Fluids Laboratory. The experiment will help aide the students in relating pressure drop and heat transfer in a cross flow heat exchanger. The experiment consists of three cross flow heat exchangers (bare inline, bare staggered, and finned staggered) that will cool hot water with current fan in the Laboratory. Optimal flow rates, pressure
Rating:Essay Length: 1,094 Words / 5 PagesSubmitted: January 4, 2010 -
Modelling Human Intelligence
Modeling Human Intelligence Levels of Organization in General Intelligence Notes 1. purpose of human intelligence modelling traditional AI - model a single thougt, model logic, not intelligence expert systems- model a large amount of knowledge, automate capabilities of eliminating solution states available as solution to a problem, not intelligence neural networks- reduce the concept of intelligence to the most basic of actions in the brain, neurons firing, that too statiscally defined , not model for
Rating:Essay Length: 2,026 Words / 9 PagesSubmitted: December 7, 2009 -
Modesto Junior College
Emphysema Emphysema Jennifer Davis Modesto Junior College ________________ Abstract Emphysema has long been lacking a clinical definition but instead is often defined in pathological terms. As a disease affecting the airspaces or parenchymal, and not the bronchi. The American Thoracic Society states that emphysema exists when “there is an anatomical alteration of the lung characterized by an abnormal enlargement of the airspaces distal to the non-respiratory bronchioles, accompanied by destructive changes of the alveolar walls”³.
Rating:Essay Length: 1,610 Words / 7 PagesSubmitted: March 16, 2019 -
Modified Waterfall Models
Introduction The subject of software engineering is not simply limited to prolific software development, but is primarily about developing good software by using knowledge of available theories with the help of various defined methods and effective use of tools in hand. There are various software development approaches defined and designed which can be employed during a software development process, these approaches are also referred to as "Software Development Process Models" (Jalote, 13). Each process model
Rating:Essay Length: 2,758 Words / 12 PagesSubmitted: May 9, 2010 -
Molar Volume of a Gas
Introduction Molar volume is the name given to the volume that one mole of any gas occupies at standard temperature and pressure. In chemistry, many of the materials worked with are gases. It is often easier to measure the volume of a sample of gas, rather than determine its mass. The main purpose of this lab is to determine the molar volume of hydrogen gas experimentally in order to compare it to the theoretical molar
Rating:Essay Length: 491 Words / 2 PagesSubmitted: January 23, 2010 -
Molecular Modeling
Molecular Modeling Exercise The purpose of the is lab was to practice modeling molecules and exploring the capabilities of the ChemOffice programs. The minimum energy was found for each of the three molecules tested and the strain energy at different dihedral angles was plotted. The first molecule, butane, was easily completed but amphetamine and U4EA caused some difficulty. The results of the last two were not very conclusive. INTRODUCTION The purpose of this lab
Rating:Essay Length: 686 Words / 3 PagesSubmitted: November 23, 2009 -
Molecular Modelling
Molecular modelling is the general term used to describe the use of computers to construct molecules and perform a variety of calculations on these molecules in order to predict their chemical characteristics and behaviour. The term molecular modelling is often used synonymously with the term computational chemistry. Computational chemistry is a broader term, referring to any use of computers to study chemical systems. Some chemists use the term computational quantum chemistry to refer to the
Rating:Essay Length: 484 Words / 2 PagesSubmitted: January 11, 2010 -
Molecular Structure
Molecular Structure Lab Objective: For this experiment we took two different molecule and virtually dissected them finding everything about them including: bond length, bond angles, the charge on each atom, the non bonded distances between atoms and the energy difference between the highest and lowest molecular orbital. Procedure: The procedure is to use HyperChem Lite to get the information needed from each molecule. But explained in full on page 16 and 17 in the
Rating:Essay Length: 319 Words / 2 PagesSubmitted: December 1, 2009 -
Momentum Lab Report
MOMENTUM LAB REPORT Oct. 27th, 2015 Mr.B.Chang, Block B Principal Investigator:Jeremy Huang Co-Investigator:McQueen Gu, Carol Li, Gail Nie, Rain Liu ________________ OBJECTIVE: * To verify that the momentum is conserved in a closed system by using the equipments which can be assembled like Figure 1. (Figure 1: The basic set up of the experiment that can verify the conservation of momentum.) * To verify that the total momentum is also conserved even the collision is
Rating:Essay Length: 2,175 Words / 9 PagesSubmitted: April 26, 2016 -
Monarch Butterfly
The monarch butterfly, as known as Danaus plexippus, is often called the milkweed butterfly because its larvae eat the milkweed plant. They are also sometimes called "royalty butterflies" because their family name comes from the daughter of Danaus, ruler of Argos. There are many other interesting facts about this butterfly including its anatomy and life cycle, where the butterfly lies on the food chain, the migration from Canada to Mexico, why the butterfly is
Rating:Essay Length: 1,052 Words / 5 PagesSubmitted: January 16, 2010 -
Monitering Fermentation of Glucose
Valentina Salloum chemistry report MONITERING FERMENTATION OF GLUCOSE AIM To investigate the fermentation of glucose and monitor the mass changes. Hypothesis * Monitoring the change in circumference of the balloon at regular intervals will show the conversion of the sugar to ethanol. * The circumference of the balloon will increase dramatically at first, as there is a sufficient supply of oxygen in order to allow the yeast to respire aerobically producing a large amount of
Rating:Essay Length: 1,129 Words / 5 PagesSubmitted: December 8, 2016 -
Monkeys Enjoy Music - Chimpanzee Music Preference
CHAMPANZEE MUSIC PREFERENCE Chimpanzee Music Preference Jordan Denos California State University Fullerton Introduction Music has always been a source of joy for humans. Every individual human has their own preference for what kind of music they enjoy. Since we are largely genetically similar to chimpanzees it would be safe to argue that they as well have a preference for certain types of music. A study conducted by Mingle et al. (2014) argued that chimpanzees prefer
Rating:Essay Length: 1,401 Words / 6 PagesSubmitted: March 12, 2015 -
Mononucleosis
Infectious mononucleosis is caused by the Epstein-Barr virus (EBV). It is a double stranded DNA virus indistinguishable from other members of the herpes virus group. It get its’ name from the mononuclear (single nucleus) cells. It is also known as the “kissing disease”, because the most frequent mode of transmission is intimate salivary contact. It can also be transmitted from shared drinking and eating utensils, toothbrushes, etc. Mono is not likely to spread by aerosol
Rating:Essay Length: 1,289 Words / 6 PagesSubmitted: June 2, 2010 -
Monopolul-Esec Al Pietei?
Monopolul-e?ec al pie?ei? Monopolul este cunoscut ca acea situa?ie de pia?? în care exist? un singur ofertant al unui produs care controleaza complet o anumita pia?a. Acesta este singurul care desf??oar? activit??i de produc?ie în ramura sa de activitate. Monopolul poate fi : - monopol natural -monopol inova?ional - monopol legal. În prima categorie economi?tii includ domenii ca cel al gazelor naturale,al electricit??ii,al telecomunica?iilor,deoarece se poate ajunge în situa?ia în care o singur? firm? s?
Rating:Essay Length: 961 Words / 4 PagesSubmitted: May 2, 2012 -
Moon
You can view either a map of the Earth showing the day and night regions at this moment, or view the Earth from the Sun, the Moon, the night side of the Earth, above any location on the planet specified by latitude, longitude and altitude, from a satellite in Earth orbit, or above various cities around the globe. Images can be generated based on a full-colour image of the Earth by day and night, a
Rating:Essay Length: 299 Words / 2 PagesSubmitted: January 13, 2010