Science
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4,610 Essays on Science. Documents 2,281 - 2,310
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Ink Jet Computer Printers
Ink jet computer printers Well, I’m going to talk about ink jet computer printers, that I believe everybody knows, because we use them almost every day. I will present you what types of ink jet printers we know and how works each of them. After my presentation or at home you should do the exercises, I (mr. somebody) gave you. We know different types of ink jet printers like thermal ink jets, piezoelectric ink jets
Rating:Essay Length: 697 Words / 3 PagesSubmitted: January 13, 2010 -
Insects and Arachnids
Insects And Arachnids Our group studied insects and arachnids. First I will tell you about arachnids. Arachnids are made up of 2 body sections , the head and the body . [ we made the picture of the spider.] On the spider there are on the head the fangs. The spider has 8 legs, and an exoskeloton . Within the arachnids group there are the spiders, scorpions , ticks, and mites . Insects are
Rating:Essay Length: 442 Words / 2 PagesSubmitted: December 9, 2009 -
Installation and Useful Commands of Linux Fc 3
Linux Installation Process: FEDORA CORE-3 REDHAT LINUX 12 Switch on the compute and press “Delete” button to access BIOS settings Select Boot using right arrow key () Choose CD-ROM as the First Priority Boot Device Insert Linux installation CD-1 into the CD-ROM Press F10 Click “OK”, Booting will start now Press “Enter” for graphical mode Click on “Test” or you can skip it Click on “OK” To start installing Linux click on “Continue” Click on
Rating:Essay Length: 565 Words / 3 PagesSubmitted: January 27, 2010 -
Insulin
Insulin In 1943, Fredrick Sanger set out to figure out the structure of insulin. He spent the next 12 years looking for the answer. A bit after that he broke the insulin molecule into pieces. After splitting the chanis of amino acids into short fragments, Snager came to understand how they fit together. He learned that insulin is made up of two linked chains, one containing 30 amino acids and the other containing 21. In
Rating:Essay Length: 372 Words / 2 PagesSubmitted: February 26, 2010 -
Insulin Synthesis
Insulin Synthesis The discovery of insulin was one of the greatest events in medical history. The existence of insulin is as necessary as that of glucose (the body’s basic unit of fuel). Both of them are related and required for life. In order for the glucose to be regulated, insulin circulates through blood vessels and bind with particular (insulin) receptors, promoting interactions essential for the wellbeing of the body’s internal mechanisms. Insulin is a
Rating:Essay Length: 771 Words / 4 PagesSubmitted: June 1, 2010 -
Integumentary System
The Integumentary System The Integumentary System, consisting of the skin, hair and nails, act as a barrier to protect the body from the outside world. It also has several other functions in the body. The word INTEGUMENT comes from a Latin word that means to cover. The most important function of the integumentary system is protection. This system 1) serves as a barrier against infection and injury, 2) helps to regulate and maintain body temperature,
Rating:Essay Length: 279 Words / 2 PagesSubmitted: December 22, 2009 -
Intelligent Design
The origin of humans is the most complex issues we face. I find it hard to explain to anyone who we are, or how we came to be. There is a great saying; the dead know only thing it’s better to be alive. Like most people I wonder about the mysteries of the universe. Regardless of your personal perception three things are certain in this life. You are born, you pay taxes, and you will
Rating:Essay Length: 1,131 Words / 5 PagesSubmitted: April 2, 2010 -
Interaction with Abiotic Components
Interaction between Abiotic and Biotic Components All living organisms depend upon their environment for survival essentials: 1) food 2) shelter 3) breeding site. In turn the organism interacts with the environment in several ways. For example a plant uses the environment for the three purposes named above but in turn it also removes carbon dioxide and water from the air, it gets eaten by an animal or a parasite and it depends on the soil
Rating:Essay Length: 692 Words / 3 PagesSubmitted: January 6, 2010 -
Internal Combustion Engine
Internal combustion engine automobiles were first produced in Germany by Karl Benz in 1885-1886, and Gottlieb Daimler between 1886-1889. Karl Benz began to work on new engine patents in 1878. At first he concentrated on creating a reliable two-stroke gas engine, based on Nikolaus Otto's design of the four-stroke engine. A patent on the design by Otto had been declared void. Benz finished his engine on New Year's Eve and was granted a patent for
Rating:Essay Length: 591 Words / 3 PagesSubmitted: December 1, 2009 -
Internal Structure of a Rat
Introduction: We will be examining the internal structure of a rat. They're will be many similarities in organ structure, but will also provide us with a visual perspective of the functions of each organ and its location. Materials: Rat, Dissecting Tray, Gloves, Dissecting kit, Pins, Paper towels Procedure: The dissection begins with putting on gloves on both hands then placing the rat on its back on a dissecting tray. When that is completed, we
Rating:Essay Length: 648 Words / 3 PagesSubmitted: November 23, 2015 -
Internet of Things
The Internet of Things is connection between the internet and computing devices in objects, allowing them to send and receive data. Related is the Internet of Everything, which brings together people, process, data, and things to make networked connections more relevant and valuable. This internet of change suggests a possible wide range of new innovations which can yield significant benefits to business and the global economy. This rapid development can be equated to the industrial
Rating:Essay Length: 323 Words / 2 PagesSubmitted: December 10, 2017 -
Internet Payment Services
ABSTRACT Research on Internet Economics attempts to improve our understanding of the Internet as an economic system. Recently proposed and implemented payment methods follow one of three models: electronic currency, credit-debit, and secure credit card transactions. Such payment services have different strengths and weaknesses with respect to the requirements of security, reliability, scalability, anonymity, acceptability, customer base, convertibility, efficiency, ease of integration with applications, and ease of use. Within this paper I shall analyze these
Rating:Essay Length: 1,037 Words / 5 PagesSubmitted: May 18, 2010 -
Internet Piracy
He doesn't wear a stocking mask over his face, and he doesn't break a window to get into your house. He doesn't hold a gun to your head, nor does he ransack your personal possessions. Just the same he's a thief. Although this thief is one you'll not only never see,but you may not even realize right away that he's robbed you. The thief is a computer hacker and he "enters" your home via your
Rating:Essay Length: 1,515 Words / 7 PagesSubmitted: January 25, 2010 -
Interphase
How Much Time Do Cancerous and Apical Meristem Cells Spend in Each Mitotic Stage in Comparison to Normal Animal Cells? Introduction The cell cycle is the cycle of growth by which eukaryotic cells asexually reproduce by replicating themselves. The process of replicating a cell’s DNA and dividing into two cells is called mitosis. Mitosis consists of five main stages. These include interphase, prophase, metaphase, anaphase, and telophase. In order to ensure proper cell replication, cells
Rating:Essay Length: 1,564 Words / 7 PagesSubmitted: November 8, 2009 -
Interpretation Is Everything: No Pain, No Gain
Lynn Young Physical Activity Shelly Hodge 10/12/2017 Interpretation is everything: no pain, no gain No pain, no gain is an old idiom, and It can be found in biblical text, poetry, and your local gym. As far as the fitness myth is concerned the saying likely came about because of the resulting soreness after a workout. Thus, no pain, no gain. Now when you are exercising there are two different types of pain, beneficial and
Rating:Essay Length: 359 Words / 2 PagesSubmitted: December 10, 2017 -
Interpreting Karyotypes
Interpreting Karyotypes Purpose: To evaluate the impact of biotechnology on the individual, society and the environment, including medical and ethical issues and analyze how heredity and family history can impact personal health. Background information: Several human genetic disorders are caused by extra, missing, or damaged chromosomes. In order to study these disorders, cells from a person are grown with a chemical that stops cell division at the metaphase stage. During metaphase, a chromosome exists as
Rating:Essay Length: 672 Words / 3 PagesSubmitted: March 5, 2017 -
Intraspecific Competition: The Response of The Sunflower (genus Helianthus) to Increasing Density
INTRASPECIFIC COMPETION: THE RESPONSE OF THE SUNFLOWER (genus HELIANTHUS) TO INCREASING DENSITY. INTRODUCTION All species, including plants, are impacted by density. Plants, of course, cannot leave their habitat as animals can, so they tend to respond in different ways to density. As populations grow more dense, they compete for resources such as food and space and are more prone to disease. Less dense populations are more susceptible to predation pressure. It is hypothesized that as
Rating:Essay Length: 495 Words / 2 PagesSubmitted: February 10, 2010 -
Intro on the Spider
Seeing how it takes spiders quite some time to catch a fly or two they can go for days without eating a single thing because spiders have slow metabolisms. When food is present though spiders can consume in large amounts. Many spiders can devour prey their own size or smaller. When the insect attaches itself to the sticky web the spider will sense its presence through the sensors on its feet. The spider will then
Rating:Essay Length: 302 Words / 2 PagesSubmitted: December 23, 2009 -
Introduction to Embryonic Stem Cells
Introduction When an egg is fertilized by a sperm to make a human embryo, that single fertilized egg cell divides millions of times to form the approximately six billion cells that make up the human body. These types of cells (4 to 7 day old embryo) are called embryonic stem cells that are unspecialized and have the ability to renew themselves and give rise to specialized cell types (they have not yet developed into
Rating:Essay Length: 482 Words / 2 PagesSubmitted: January 29, 2010 -
Introduction to Myasthenia Gravis
Introduction to Myasthenia Gravis Myasthenia Gravis, also Known as “grave muscle weakness” is a chronic muscle disease that causes abnormally rapid fatigue of the skeletal muscle system, which are the voluntary muscles. The affected muscles tire quickly but regain strength after a period of rest. Myasthenia Gravis is termed an autoimmune disease. The immune system usually makes antibodies to attack bacteria, viruses and germs. With the autoimmune disease, the immune system makes antibodies against parts
Rating:Essay Length: 636 Words / 3 PagesSubmitted: February 15, 2010 -
Introduction to Scanning Electron Microscopy
Introduction To Scanning Electron Microscopy At the completion of the prac, the practical experience of operating a scanning electron microscope is sufficient to operate the particular machine in the future. During the experiment, two different gold plated samples are analysed under the SEM and compositional and topographic information is identified and analysed. Both the information is derived by changing the working distance, accelerating voltage, aperture size, probe current, resolution and magnification. AIM To analyse samples
Rating:Essay Length: 333 Words / 2 PagesSubmitted: March 23, 2010 -
Introduction to the Muscular
12 Introduction to the Muscular ANSWERS TO PRE- LAB ASSIGNMENTS Pre-Lab Activity 1: 1. a. Muscle b. Fascicle c. Muscle fiber d. Endomysium e. Perimysium f. Epimysisum 2. a. T-tubule b. Sarcoplasmic reticulum c. Nucleus d. Triad e. Sarcolemma f. Terminal cisternae g. Myofibril h. Mitochondrion Pre-Lab Activity 2: 1. a. 2. c. 3. Motor neuron, muscle fiber 4. Neurotransmitter Pre-Lab Activity 3: 1. a 2. c 3. glycerol 4. Z-discs 5. They slide past
Rating:Essay Length: 3,321 Words / 14 PagesSubmitted: November 7, 2018 -
Introductory Theory on Fluidization
2. THEORY 2.1 Packed columns and Fixed Beds A packed column consists of specifically shaped particles contained within a column. Generally a packed column is used to bring two phases in contact with one another. Normally one fluid will wet the packing and flow as a film over its surface. The second fluid will pass through the remaining volume of the column. This promotes a high interfacial area between the two phases and a high
Rating:Essay Length: 855 Words / 4 PagesSubmitted: April 20, 2010 -
Invaisive Species
Discussion The presence of Bythotrephes in Harp Lake showed a significantly greater mean length (mm) and lower mean abundance (daphnia/m3) of the Daphnia population. However, there was no significant change in the biomass (µg/m3). The differences in length and abundance suggest that the invasive species can possibly be correlated with increased predation, competition and overall disturbance of the steady state equilibrium in the given aquatic ecosystem, Harp Lake. The significant decrease in the abundance of
Rating:Essay Length: 541 Words / 3 PagesSubmitted: March 25, 2010 -
Invasive Organisms
Invasive organisms are alien, exotic or non-indigenous species that originally evolved somewhere else in the world then were transported for a reason or accidentally to a habitat that is not their own. Though many species have already done this on their own through natural processes it is the great expanse of human exploration along with human colonization that has caused great increases in the scale of invasions by non-indigenous organisms. (10) The most widely
Rating:Essay Length: 2,275 Words / 10 PagesSubmitted: February 17, 2010 -
Invasive Species
Many things can disrupt and alter ecosystems. Huge benefactors of disrupting ecosystems are invasive species. Invasive species are non-native organisms alien to the ecosystem. They are capable of mobbing aggressively into a habitat and take over the resources including sunlight, food, water, nutrients and space. Usually and most likely their invasion causes economic or environmental harm or harm to human health. Invasive species can be plants, animals or any other living organism whose introduction is
Rating:Essay Length: 1,992 Words / 8 PagesSubmitted: December 14, 2009 -
Invasive Species
Hog Farming In a little over a decade the U.S. has seen a massive shift in the agricultural economy from smaller, family owned farms to larger corporate farms. This has lead to many families that once relied on farming being forced to sell their farms to larger corporate farms and sometimes leaves families impoverished. As these corporations have grown more powerful economically they have also grown more powerful politically. Some corporate farmers have used this
Rating:Essay Length: 3,179 Words / 13 PagesSubmitted: December 16, 2009 -
Invasive Species
The invasive species are harmful for native systems and time and money should be invested to prevent these species from spreading and damaging systems that they are not native to. Strict rules for environmental obedience are necessary and good. Much more needs to be done to protect our planets and its biodiversity from the invasion of alien species. When non-native species from other ecosystems are introduced, they can upset that balance and bring harm to
Rating:Essay Length: 902 Words / 4 PagesSubmitted: February 12, 2010 -
Investigate the Kinetics of a Common Inorganic Reaction
Planning (a): Aim: In this experiment, we are going to investigate the reaction between NaOH and HCl. The aim of the experiment is to find the rate equation for the reaction. The rate equation has the general form: Rate = k[NaOH]x[HCl]y Rate : Speed of the reaction k : Rate constant [NaOH]x : NaOH raised to the power of x. The value for x can only be determined experimentally and is referred to as “the
Rating:Essay Length: 307 Words / 2 PagesSubmitted: December 2, 2009 -
Investigating Chemical Equilibrium
Experiment 12A: Investigating Chemical Equilibrium Courtney.K March.3rd, 2017 Block 4 Purpose: As on page 163 “Essential experiments for chemistry” experiment 12A: Investigating chemical equilibrium. Materials: As on page 164 “Essential experiments for chemistry” experiment 12A: Investigating chemical equilibrium. Procedure: As on page 164-166 “Essential experiments for chemistry” experiment 12A: Investigating chemical equilibrium. Omit step 4. Observations: Part 1: HBcg ←→ Bcg- + H+ Initial colour of bromcresol green in water: Blue Reagent added Stress Colour
Rating:Essay Length: 923 Words / 4 PagesSubmitted: April 18, 2017