Cell Phones Essays and Term Papers
Last update: July 19, 2014-
Osmosis in onion Cell
The aim of the sixteenth of November experiments was to observe how three different solutions with various sucrose concentration influenced osmosis in relation to three onion cells and the impact on the cells structure. A small square of a red onion skin (membrane) was observed under a microscope at high power (X40) magnification. The observation showed a large number of onion cells. The structure of one onion cell had a general rectangular shape with a
Rating:Essay Length: 670 Words / 3 PagesSubmitted: May 13, 2010 -
The Effect of Nonsteroidal Anti-Inflammatory Drugs on Chick Embryo Fibroblast Cells and Its Relation to Colon Carcinogenesis
The Effect of Nonsteroidal anti-inflammatory drugs on chick embryo fibroblast cells and its relation to colon carcinogenesis Abstract NSAID's are chemopreventive mediators of colon carcinogenesis, although their molecular pathway is unknown. Previous studies suggest that NSAID's best known effect is its inhibition of prostaglandin, a lipid that is derived from fatty acids. To study the effect of NSAID's on chick fibroblast cells, we sought to apply aspirin (a common NSAID) to these cells in
Rating:Essay Length: 1,104 Words / 5 PagesSubmitted: May 13, 2010 -
Sickle Cell Anemia
Sickle Cell anemia is a group of inherited red blood cell disorders, or a collection of recessive genetic disorders characterized by a hemoglobin variant called Hb S. Normal red blood cells are round like doughnuts, and they move through small blood tubes in the body to deliver oxygen. Sickle red blood cells become hard, sticky and shaped like sickles used to cut wheat. When these hard and pointed red cells go through the small
Rating:Essay Length: 1,361 Words / 6 PagesSubmitted: May 18, 2010 -
Stem Cell Essay
One of the greatest issues in the world today is the threat of neurodegenerative diseases. These diseases are responsible for about 60,000 deaths per year, many of which are preceded by up to several years of excruciating pain and suffering. These, among other health issues such as heart disease, arthritis, and diabetes, are treatable with stem cell therapy. With the myriad of diseases treatable with stem cell technology, it is surprising that more effort is
Rating:Essay Length: 289 Words / 2 PagesSubmitted: May 20, 2010 -
Sickle Cell Anemia
Sickle cell anemia is a hereditary disorder that mostly affects people of African ancestry, but also occurs in other ethnic groups, including people who are of Mediterranean and Middle Eastern descent. More than 70,000 Americans have sickle cell anemia. And about 2 million Americans - and one in 12 African Americans - have sickle cell trait (this means they carry one gene for the disease, but do not have the disease itself). Sickle cell anemia
Rating:Essay Length: 1,102 Words / 5 PagesSubmitted: May 20, 2010 -
Electrochemical Cells
ELECTROCHEMICAL CELLS 3-21-05 Purpose: In this experiment, several different half-cells will be prepared and connected to find the voltages generated. Also, the concentration will be change in one of the solutions to see how this affects the cell potential. Thirdly, the electrical potential of a cell containing silver and silver chloride will be measured. Lastly, a cell containing copper (II) and ammonia will be constructed. The potential and the Nernst equation will be used to
Rating:Essay Length: 737 Words / 3 PagesSubmitted: May 24, 2010 -
Stem Cell
Many people have not been fully informed on the topic of human pluripotent stem cell research. Most American have heard a lot on one side, and very little on the other. Hence, they have not and can not fully evaluate the facts and can only give snap decisions, according to religioustolerance.com. Having heard extensive lectures on both sides, I believe that embryonic stem cell research shows great promise in bettering the medical and scientific community.
Rating:Essay Length: 611 Words / 3 PagesSubmitted: May 27, 2010 -
Stem Cells
Stem cells show potential for many different areas of health and medical research, and studying them can help us understand how they transform into the dazzling array of specialized cells that make us what we are. Some of the most serious medical conditions, such as cancer and birth defects, are caused by problems that occur somewhere in this process. A better understanding of normal cell development will allow us to understand and perhaps correct the
Rating:Essay Length: 1,088 Words / 5 PagesSubmitted: May 28, 2010 -
The Cell as the Basic Unit of Life
Like cement sets the foundation for a house, the cell theory sets the foundation for biology. Schleiden and Schwann proposed the cell theory, which states that the cell is the basic unit of life and that new cells arise only from the reproduction of already existing cells via cell cycle, in 1839. Since the cell is the structural and functional unit of life as the house is for a community, without the house the community
Rating:Essay Length: 1,115 Words / 5 PagesSubmitted: May 31, 2010 -
The Development of Mobile Phones
The development of mobile phones brought convenient and advantages to the world. Communication between people and people are easier and fast. Though, the disadvantages brought along with the fast grown technology cannot be ignored. These problems not only influenced people personally but also the society. Symptoms caused by the radiation of mobile phones are one of the most argued problems. Many scientists believe that the radiation from the mobile phones may cause the users to
Rating:Essay Length: 299 Words / 2 PagesSubmitted: June 2, 2010 -
Doctors Accused of Doing Illegal Stem-Cell Trials Patients in Austria May Have Been Misled
Doctors accused of doing illegal stem-cell trials Patients in Austria may have been misled. Alison Abbott Patients treated outside of clinical trials in the Urology Department (inset) of the Medical University of Innsbruck may not have been insured.Clinical trials led by Hannes Strasser have come under scrutiny by an Austrian ethics committee.MEDICAL UNIV. INNSBRUCK An apparently successful stem-cell treatment for urinary incontinence is now being questioned after it has emerged that clinical trials for the
Rating:Essay Length: 1,193 Words / 5 PagesSubmitted: June 5, 2010 -
Sickle Cell Anemia
Sickle Cell Anemia Sickle cell anemia is an inherited blood disorder, characterized primarily by chronic anemia and periodic episodes of pain. The underlying problem involves hemoglobin, a component of the red cells in the blood. The hemoglobin molecules in each red blood cell carry oxygen from the lungs to the body organs and tissues and bring back carbon dioxide to the lungs. In sickle cell anemia, the hemoglobin is defective. After the hemoglobin molecules give
Rating:Essay Length: 687 Words / 3 PagesSubmitted: June 5, 2010 -
Drug Resistance Mechanisms in Cancer Cells
INTRODUCTION A major obstacle in the successful treatment of cancer is the development of resistance mechanisms to drug treatment. Various cellular changes that have been implicated in the development of drug resistance in cancer cells include: the increased expressions of P-glycoprotein (a multidrug transport protein) and multidrug resistance-associated protein (MRP-1); increased levels of the cellular detoxification protein, glutathione; and changes in the expression of apoptosis associated proteins such as Bcl-2, FasL and p53, which generally
Rating:Essay Length: 422 Words / 2 PagesSubmitted: June 5, 2010 -
Competition in the European Mobile Phone Industry
Competition in the European mobile phone industry: Introduction of UMTS in Spain Unique characteristics of the phone operator compared to traditional manufacturing sectors Many of the fundamental characteristics differ between manufacturing and services. These include the following: · Ability to develop and protect proprietary technologies: Imitation is simpler for a phone operator; manufacturing process/system patents are more difficult to obtain and protect. · Incremental nature of innovation versus discrete technology transition: Because of competitive pressures
Rating:Essay Length: 353 Words / 2 PagesSubmitted: June 6, 2010 -
Somatic Cell Nuclear Transfer
Somatic Cell Nuclear Transfer Somatic Cell Nuclear Transfer (SCNT), more commonly known as cloning, is a topic of great controversy and has undergone much research over the past few decades. Scientists have recently been successful at cloning certain mammals and are moving closer to the cloning of humans. Somatic Cell Nuclear Transfer of mammals is a complicated process in which the nucleus of an egg cell ooplasm is removed and replaced by the DNA containing
Rating:Essay Length: 481 Words / 2 PagesSubmitted: June 6, 2010 -
Embryonic and Adult Stem Cells
Stem cells relate to the person health of an individual. Stem cells have the remarkable ability to develop into many different cell types in the body. Able to be a repair system for the body, they can divide without limit to replenish other cells as long as the person alive and able to provide nutrients to the cells. When a stem cell divides, each new cell has the potential to either remain a stem
Rating:Essay Length: 1,098 Words / 5 PagesSubmitted: June 6, 2010 -
Cells
Welcome, welcome, welcome!!! Polly said you might drop by. If you would like, I'll introduce you to some of the real characters that inhabit the wonderful world of cells. "I'm Chloe the chloroplast. I'm a part of a plant cell. My job is to turn sunlight into sugar! Isn't that a grand job? Plant cells, and animal cells for that matter, are pretty sophisticated. Why don't I let you meet some of the more humble
Rating:Essay Length: 786 Words / 4 PagesSubmitted: June 7, 2010 -
Embryonic Stem-Cell Research
Embryonic stem-cell research is a big issue today. Embryonic stem-cell research destroys the stem cells of early embryos to create any cell in the human body like a bone marrow. It all started in the mid 1800s when scientists discovered that some cells could generate other cells. In 1994, President Clinton prohibited federal funding on research to support the creation human embryos for research purposes. Federal laws were put in place to prohibit the Department
Rating:Essay Length: 743 Words / 3 PagesSubmitted: June 7, 2010 -
Stem Cell Research
Stem cellular structures are cells found in most multi-cellular organisms. They are capable of retaining the ability to reinvigorate themselves through mitotic cell division and can differentiate into a diverse range of specialized cell types. Research in the stem cell field grew out of findings by Canadian scientists Ernest A. McCulloch and James E. Till in the 1960s.[1][2] The two broad types of mammalian stem cells are: embryonic stem cells that are found in blastocysts,
Rating:Essay Length: 1,010 Words / 5 PagesSubmitted: June 7, 2010 -
Mobile Phone
The effect of mobile phone radiation in humans is still being questioned. In Britain a 27 year old woman with a brain tumour is taking a mobile phone manufacturer to court who she blames for her tumour. A biologist, Roger Coghill has also been given permission to bring a case against a provider of mobile phone equipment for failing to warn people of radiation hazards. A wide variety of electrical devices contribute to electro smog,
Rating:Essay Length: 293 Words / 2 PagesSubmitted: June 8, 2010 -
Stem Cell Research
Stem cell research has been a controversial topic since its birth. Of course, anything that uses an embryo would be. With a topic like this, anything but a radical opinion seems heartless. Stem cell research could open doors for science, letting us test new drugs, which could one day cure cancer or AIDS. However, is that worth the cost of a human life? It’s impossible, from an unbiased standpoint, to decide which side is right
Rating:Essay Length: 720 Words / 3 PagesSubmitted: June 10, 2010 -
Stem Cell Research
Persuasive Essay Many controversial and moral stricken issues have been put into question in today’s modern society. Some of which include gay marriage, and abortion. Yet one of the most controversial has to be stem cell research. A Stem Cell is a “generic” cell that can make exact copies of itself indefinitely. It also has the ability to make specialized cells for various tissues in the body such as the heart muscle, brain and liver.
Rating:Essay Length: 1,016 Words / 5 PagesSubmitted: June 10, 2010 -
The Cell
The cell is the fundamental structural unit of all living organisms. Some cells are complete organisms, such as the unicellular bacteria and protozoa; others, such as nerve, liver, and muscle cells, are specialized components of multi-cellular organisms. Cells range in size from the smallest bacteria-like mycoplasmas, which are 0.1 micrometer in diameter, to the egg yolks of ostriches, which are about 8 cm (about 3 in) in diameter. Although they may differ widely in appearance
Rating:Essay Length: 3,220 Words / 13 PagesSubmitted: June 10, 2010 -
Launch of Skype Phone
Skype generates revenue through its premium offerings such as making and receiving calls to and from landline and mobile phones, as well as voicemail and call forwarding. Skype is linked with a growing network of hardware and software providers and is an eBay company. Skype joint up with 3 Mobile - a wireless carrier in Europe, Asia, and Australia, to launch a customized cell phone. This is the first time a mobile operator is allowing
Rating:Essay Length: 956 Words / 4 PagesSubmitted: June 10, 2010 -
Stem Cell Research
Stem Cell Research Miguel Amador Biology 131 November 8, 2003 Stem Cell Research Stem cells are located deep down in our bone marrow. They have the incredible ability of “generating an endless supply of red cells, white cells, and platelets”(1). They have been called the “Mother of all blood cells” due to their ability to regenerate the entire blood supply of a persons body. Just to think that this is possible is actually pretty incredible.
Rating:Essay Length: 1,197 Words / 5 PagesSubmitted: June 12, 2010