Awareness Article #2 is due Feb 27th, 2008.
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Sunday, February 8, 2009
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March 17, 2009
Drink Green Tea For Healthy Teeth And Gums
http://www.sciencedaily.com/releases/2009/03/090305183128.htm
Mar. 13, 2009 ScienceDaily
Periodontal disease is an inflammatory disease that affects the gums and the bone supporting teeth. Studies are showing that one cup of tea a day has the ability to reduce symptoms of periodontal disease because of the antioxidants in the tea. Antioxidants reduce the inflammation, which in turn improve the overall disease.
Laila Mirza
Title: Do Cell Phones Really Cause Cancer?
Author: Melinda Wenner
Date: November 21, 2008
Source: http://www.sciam.com/article.cfm?id=fact-or-fiction-cell-phones-can-cause-brain-cancer
This article explains whether or not cell phones can cause brain damage or not. Cell phones use non - ionizing radiation, which differs from the ionizing radiation of x rays and radioactive material in that it doesn’t have enough energy to knock around electrons or particles in the atoms. Cell phone radiation falls into the same category as microwaves, but Jorn Olsen, chair of epidemiology at the University of California, school of public health says, “That unlike microwaves, cell phones do not release enough radiation to damage DNA or genetic material, which can lead to cancer.” In conclusion, it is thought that cell phone’s don’t cause brain cancer.
Kayla M
Title: What's In A Breath of Fresh Air?
Author: Rhiannon Buck
Date: 20 Apr 2007
Source: http://www.firstscience.com/home/articles/nature/what-s-in-a-breath-of-fresh-air_21080.html
When ocean waves crash onto a beach, they could be doing more than entertaining beach goers. Moving water, moving air and sunlight all cause air molecules to break apart, releasing charged atoms, or ions, into the atmosphere. Negatively charged ions in sea air and that they could have health benefits which range from better circulation to improved moods. A lot of people have enough faith in these effects to purchase negative ion generators for their homes. Ocean air has a high percentage of ions. Surfer will try to find a perfect wave. These mainly come from ions of sodium, magnesium, chloride and sulphate present in sea water.
joti
Pathology
author: unknown
This article is about pathology and how different disease processes affect the human body and their physical or mental changes. There are many types of technology that help with pathology, and it now relies on advances in molecular biology and biotechnology. The job of a pathologist is to connect physiological changes with disease processes through various tests. There are many different branches of pathology, including anatomic and molecular pathology.
http://galenet.galegroup.com/servlet/SciRC?locID=winn39111&bi=SU&bt=pathology&c=1&t=1&ste=21&docNum=CV2430500309&st=b&tc=31&tf=16
http://galenet.galegroup.com/servlet/SciRC?locID=winn39111&bi=SU&bt=pathology&c=2&t=1&ste=21&docNum=CV2644031665&st=b&tc=31&tf=16
Climate Change and Atmospheric Circulation Will Make For Uneven Ozone Recovery
The Earth’s ozone layer should recover eventually, from an unplanned use of the chlorofluorocarbon (CFCs) and other ozone chemicals from the 20th century. An atmospheric scientist from the Goddard Earth Sciences and Technology Centre at the University of Maryland and other authors had said “Most studies of ozone and global change have focused on cooling in the upper stratosphere.” But they have found that circulation is just as important. In earlier studies, they have shown that greenhouse gases made the troposphere warmer. The troposphere cools the upper stratosphere. This slows down the chemical reaction that decreases the ozone in the upper stratosphere. It also allows the natural ozone to return to its natural state. The growth of greenhouse gases has changed the circulation of the stratospheric air mass. In the middle latitudes, the ozone is growing higher than it was before. The ozone layer in the tropics could fully recover on its own by the stratospheric circulation. Atmospheric chemical effects, wind changes, and solar radiation changes were placed on a detailed computer model to follow the changes of the ozone layer.
Katelyn R.
http://www.sciencedaily.com/releases/2009/04/090410143811.htm
http://www.nasa.gov/topics/earth/features/ozone_recovery.html
IS it safe to live near a gas station?
There are few negative affects that gas stations can do to the people live near it. Substances that come from car exhaust, which includes vapors from gasoline and carbon monoxide, cause ozone pollution. Most gas pumps have to have government regulated vapor-recovery boots on, which functions to limit the release of gas vapors while fueling the car or filling the main oil tanks. Unfortunately, some boots do not work properly and can cause respiratory problems like asthma. There are also some major problems from the underground gasoline storage tanks. These tanks often get rusted over time and can leak underground, which causes water and soil pollution. These days we cannot escape from these chemical toxins, but it is better to choose live away from a gas station.
http://www.sciam.com/article.cfm?id=is-it-safe-to-live-near-gas-station
Genetically Modified Organism Food
Publisher: Deborah B. Whitman
Nowadays, there are genetically modified foods (also called GMO) everywhere in local grocery stores. The benefits of applying bioengineering into food industry are various especially the products such as dairy and crops are more resistible to natural diseases, produces more and faster. However, people cannot guarantee what components the GMO products contain since producers do not label the components. Customers like us would like to know exactly what is in our food and we have right to look at. The workers need to think about people’s health risks, instead of thinking to earn a lot of money.
Links: - http://www.ornl.gov/sci/techresources/Human_Genome/elsi/gmfood.shtml
- http://www.cbc.ca/news/background/genetics_modification/
Title: Music to deaf ears: portable stereos, concerts boosting hearing loss in young, experts say
Author: Kelly, Anne
Date of Article: 05/25/2007
Source: http://web.ebscohost.com/ehost/detail?vid=4&hid=120&sid=76e842c2-f917-4f5f-afa6-baf3e9c29c63%40sessionmgr103&bdata=JnNpdGU9ZWhvc3QtbGl2ZQ%3d%3d#db=rch&AN=Q4K174786860207
Hearing loss is becoming more and more common in youth because of loud concerts, iPods and video games. Ear buds can raise the sound level 9 decibels because it is located so close to your ear drum, they drive the sound down into your ear. The closer to the ear drum, the larger the sound pressure, and the sooner serious hearing damage can occur. When you put your headphones on the music may sound loud, but your brain quickly adjusts making it sound normal. More people are being diagnosed with hearing loss due to noisy toys and portable listening devices.
http://www.hearnet.com/at_risk/risk_at_risk.shtml
http://www.wired.com/science/discoveries/news/2005/09/68844
Global Warming
Freedman, Bill; and Duncan, Laurie. Gale Encyclopedia of Science. Ed. K. Lee Lerner and Brenda Wilmoth Lerner. Online. Detroit: Gale Group, 2009.
http://galenet.galegroup.com/servlet/SciRC?locID=winn39111&bi=SU&bt=%2522Global+warming%2522&c=6&t=1&ste=21&docNum=CV2644031018&st=b&tc=63&tf=0
Global warming refers to a long term raise in the Earth’s average surface temperature that results in large scale changes in global climate, including rearrangement of climate areas defined by temperature, precipitation, and associated ecosystems. Between 1905 and 2005, the overall average global surface temperature on Earth increased by about 0.74°C (1.33°F). If global climate change proceeds, it will have substantial and disastrous climatic, ecological, and political consequences.
http://www.epa.gov/climatechange/
http://www.climatehotmap.org/
Jarrell
Can You Lose Your Fingerprints?
By Katherine Harmon
May 29, 2009
Chemotherapy and the drugs involved with it has more side effects then hair loss. The drug capecitabine has been known for giving hand–foot syndrome. The side effects of hand-foot syndrome is usually just pain, swelling and peeling on the palms and soles of the feet, but they have found some one who actually lost their finger prints because of this drug. Edward Richards, the director of the Program in Science, Law and Public Health at Louisiana State University and a forensics expert has also found that there are many other rashes or diseases that can cause finger print loss, but since the skin replaces and re-grows at such a fast rate that over time you can get your fingerprints back. That is, if you haven’t done anything to permanently damage the skin tissue.
http://www.scientificamerican.com/article.cfm?id=lose-your-fingerprints
http://www.cnn.com/2009/US/05/28/cancer.fingerprints/index.html
The science of shooting a basketball
Shooting a basketball is a science because for the ball to go in the hoop you need to have the right velocity, angle of release and spin on the ball. It is science that if you do not have the right spin on the ball it will not go in if it hits the rim because it will bounce to hard. If you dont have the right velocity the ball will either go to far or not far enough. The right angle of release is important because the ball needs to come down at a certain time. It also needs to go high because this can make it bounce softer if it hits the rim.
Teddy
http://www.coachlikeapro.com/basketball-shooting.html
http://www.youtube.com/watch?v=__k0_1QZSLM
Title: Staying green in the sun
Date of Article: May 26, 2009
Source: http://www.slate.com/id/2218948/
Sunscreen may be able to block out UV rays but it may also harm our bodies. Some sunscreens will have a combination of the 17 FDA approved ingredients. These include zinc oxide, titanium dioxide and carbon based chemicals. Certain chemicals can penetrate human skin and disrupt hormones, causing horrible mutations in the reproductive function. Any mineral that is harmful to humans can also be harmful to other wildlife. UV filters have been found in lakes, oceans and rivers around the world and tracing minerals back to their origins can be difficult.
Written by Nina Shen Rastogi
Submitted by Miko
Titles
- Bird Flight
- Birds
Authors
- Gordon Ramal
Date of Articles
- May 4, 2009
Sources
- http://www.earthlife.net/birds/flight.html
- http://wings.avkids.com/Book/Animals/intermediate/birds-01.html
Additional Source
- http://nature.ca/discover/exb/hwdbrdsfly/index_e.cfm
Summary
Birds are nature’s natural flyers, they have been doing it even before mankind came around. Birds’ bodies are specially designed for flight, they have feathers, have a nature to be in a hurry. Even their bones are specially designed, they have fewer of them and they are extremely light due to the fact that they are hollow, this unfortunately makes them easier to break.
Sources:
-http://id.mind.net/~zona/mstm/physics/light/rayOptics/reflection/reflection1.html
How do mirrors reflect light?
Lights moves at approximately 300,000 kilometers per second. Mirrors we see everyday which have very flat surfaces reflect some sort of light. In order for light to transfer, it has to follow the Law of Reflection. Rays of light approaching the mirror is known as the incident ray. The ray of light that leaves the mirror is known as the reflected ray. A line perpendicular to the surface is imagined at the point of reflection. This line is called a normal. The angle between the incident ray and the normal is called the angle of incidence, or the incident angle. The angle between the reflected ray and the normal is called the angle of reflection, or the reflected angle. The law of reflection says that when a ray of light reflects off a surface, the angle of incidence is equal to the angle of reflection.
http://www.perio.org/consumer/green-tea.htm
http://www.emaxhealth.com/1020/77/29684/green-tea-keeps-teeth-and-gums-healthy.html
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