EssayZap  
Enter Topic  

» Get Science and Nature Papers

Turner Syndrome

... He published a comprehensive medical description of the syndrome. It was not until 1959, that it became clear the syndrome was due to lack of sex chromosome material. Turner's Syndrome is a rare chromosomal disorder that affects one in approximately 2,500 females. Females normally have two X- chromosomes. However, in those with Turner's Syndrome, one X chromosome is absent or is damaged. OTHER NAMES Depending on the doctor, Turner's Syndrome may be diagnosed with one of the following alternative names: 45 - X Syndrome, Bonnevie- Ulrich Sy ...

Number of words: 1105 | Number of pages: 5

Als

... In , these neurons deteriorate to a point that all movement, including breathing, halts. Muscle weakness first develops in the muscles of body parts distant from the brain, such as the hands, and subsequently spreads through other muscle groups closer to the brain. Such early symptoms as this, however, can hardly be noticed. Early symptoms of are very slight and often overlooked. They begin as simple things, such as tripping or dropping things. Twitching or cramping of muscles and abnormal fatigue of the arms and legs may soon follow, ca ...

Number of words: 682 | Number of pages: 3

Animal Uses

... sacrifice about 64 million animals a year (Curtis 658). This number includes hundreds of thousands of dogs, cats, apes, monkeys, horses, ponies, calves, sheep, goats, pigs, and a couple million rabbits, hamsters, guinea pigs, birds, rats and mice (Curtis 658). These animals are subjected to experiments that often cause pain and even death. According to Cutis, about 25 cosmetic companies including Avon and Revlon, have cooperated in conducting animal tests to see if there product are irritating (664). These experiments were tested ...

Number of words: 738 | Number of pages: 3

Electrolytes

... electrolytes release many ions and conduct electricity well. Weak electrolytes, like acetic acid, don’t release many ions and conduct poorly. Non electrolytes, like sugar, release no ions and form non conducting solutions. A couple electrolytes conduct electricity as solids. These solid electrolytes have ions that can move and carry charges without solvents. There are two ways to be able to have ions that are able to conduct electricity, the dissociation of Ionic Compounds, and the Ionization of Polar Covalent Molecular Substa ...

Number of words: 612 | Number of pages: 3

Diabetes 2

... treatment also caused new islet cells to grow where there had been few or none. Since then, in a report in the May 1997 Journal of Clinical Investigations, the researchers have identified the gene that Ilotropin triggers, the one involved in regenerating the islet cells. If the human version of the same gene could be turned on in similar fashion, type I insulin dependent diabetics and type II's who inject insulin might have their natural insulin-producing apparatus restored. What is Diabetes? Well, this disease is known as "diabetes mellitu ...

Number of words: 697 | Number of pages: 3

Theory And Research

... methods that will be emphasized. In a survey research, people are asked questions either through the use of questionnaires or during an interview. Unlike the experiment approach, the condition and situation in a survey requires no manipulation. All the subject have to do is to answer questions. Good quantitative research is determined by validity and reliability of the research method used (Teevan, 1995:161). Therefo re, the straight correlation study method used in the survey research of "Horatio Alger lives" lack components of validity an ...

Number of words: 1799 | Number of pages: 7

Biology 2

... mechanical constraints." In other words, they were interested in the specifications of the flight-initiating jumps, and also interested about how the bat is able to utilize its wing for more than one purpose such as crawling, or moving without flight. The hypothesis that was being implemented was that "the wing is expected to have design features that allow both powered flight and the generation of violent jumps." The Demodus rotundus demonstrates intricate movements including flight-initiating jumps and because of this the wing is ex ...

Number of words: 516 | Number of pages: 2

The Language Of The Cell

... all living things, whether they were plants or animals, were made up of cells. This whole idea has been given credit to an English Physicist, Robert Hook (1635-1703), when he looked at a thin slice of cork under powerful hand lens. Hook discovered a large number of cells. Rudolf Virchow (1821-1902) propounded this idea, that the cell is a basic structure and functional unit for all living organisms. A cell can be a wide range of shapes and sizes, although most cells are microscopic. Inside a cell membrane, a nucleus can be seen. The n ...

Number of words: 1502 | Number of pages: 6

Euthanasia

... to initiate extraordinary or even ordinary medical treatment, as moral. Another position advocates that passive euthanasia is acceptable when the person to die has consented. Other positions include situations where a terminally ill patient is unable to consent as justifiable, because it resolves a hopeless situation. Conversely, even with this gradation, some opponents to euthanasia believe that voluntary, passive euthanasia is the same as suicide; involuntary euthanasia is considered to be murder. Because euthanasia poses classi ...

Number of words: 1923 | Number of pages: 7

Bubonic Plague 2

... began to cool in the 14th century, and perhaps this so-called little Ice Age had something to do with it becoming more active than normal (Knox 2). Whatever the reason, we know that the outbreak began there and spread outward. While it did go west, it spread in every direction, and the Asian nations suffered as cruelly as anywhere. In China, for example, the population dropped from around 125 million to 90 million over the course of the 14 century. The plague moved along the caravan routes toward the West. By 1345 it had made it’s way t ...

Number of words: 575 | Number of pages: 3

Memory

... brain which changes the physical structure (Loftus p. 392). It has been found after many research , that new memory is stored in a section of the brain called the hippocampus (Loftus p. 392). Memory is acquired by a series of solidifying events , but more research is still needed to discover and fully understand (Loftus p. 392). Memory is broken down into three systems or categories . These different systems are sensory memory , short-term , and long-term memory. Sensory memory is the shortest and less extensive of the others. It can hold mem ...

Number of words: 1045 | Number of pages: 4

A Critique Of The Stanford Experiment

... college students and had some agree to be prisoners and the rest would be guards for the prisoners. Both groups received no training on what to do or act like. They had to get all of their knowledge of what to do from outside sources, such as television and movies. The guards were given uniforms and night sticks and told to act like an ordinary guard would. The prisoners were treated like normal criminals. They were finger printed and booked, after that they were told to put on prison uniforms and then they were thrown into the sla ...

Number of words: 592 | Number of pages: 3

Pages: 1 ... 117 118 119 120 121 122 123 124 125 126 127 next »