Awareness Article #1 is due Friday, March 26, 2010.
Reminders:
1. Make sure you follow the format, a significant portion of your marks are based on proper format.
2. Complete the article in a word document and save it. Then copy and paste the content into your blog post. This provides you a backup in case an error occurs during the post.
3. There are a number of valuable sources found under the Science Links.
Friday, March 19, 2010
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17 comments:
Brain Abnormalities Identified That Result from Prenatal Methamphetamine Exposure
Author: None
Date: March, 17, 2010
Website: http://www.sciencedaily.com/releases/2010/03/100316174208.htm
Submitted by: Nick Rodriguez
Summary: Have you ever wondered what would happen if a child was born and was exposed by meth? Mothers who are pregnant and have abused methamphetamine show brain abnormailities that are more deadly than kids who are exposed to alchohol. Researchers have identifyed undefendable brain structures and will help predict learning and behavioral problems in meth-exposed kids.
Two additional sources related to the topic:
http://esciencenews.com/articles/2010/03/16/brain.abnormalities.identified.result.prenatal.meth.exposure
http://www.physorg.com/news187978787.html
Title: INERTIA?
Author: kalpande
Date of article: 2009(published).
Obtain: from science book of physics.
Submitted By: Nishadh, R.
Summary:
What is inertia? . Inertia is nothing but the kind of catagorized part of force. Inertia described as the manager of the motion of any object or the ability of force to change the motion of object. For example if anyone keeps a plate on a table, and there is no one there to pick up or to do something motion with it. So basically the plate will remain stable, motionless in other words any object continous its motion(whether it is uniform motion or not) unless the externel force acts on it. These was the example of stable motion but in space is any object thrown or push it will not stop moving infact nothing can stop itself from moving. And if you start walking in space it is almost impossible to stop yourself from moving unless other force acts to stop yourself (like something holds you from moving). But this does not happen on earth that because inertia decides the behavior i.e. in earth the force like gravity acts on object to stop it .
Two additional sources.
(1) Form book of physics.
(2) http://en.wikipedia.org/wiki/Inertia
Title: Elusive Protein Points to Mechanism Behind Hearing Loss
Author: Rockefeller University
Date: January 2, 2010
Website: http://www.sciencedaily.com/releases/2009/12/091231153045.htm
Submitted by: Stephanie B
Summary: The scientist used zebra fish larvae for their tests on hearing loss. A. James Hudspeth suggested that the cause may be from a faulty pathway that translates sound wave to electrical impulses so the brain can understand. There were no problems structure wise found in the deaf zebra fishes’ inner ears, which contain sound sensors called hair cells. The cells were formed into hair like projections called stereocilia, which when it is deflected to the tallest member decodes sound into a neutral code. While other tests showed that the deaf zebra fishes’ hair cells might as well not be there. When the DNA of the deaf zebra fish and the non-deaf zebra fish were looked into, they zeroed in on the certain gene which encodes for the protein Tmie. They realized that the gene had two mutations, which resulted in severely shortened protein which affect how the hair-like sensors worked, leading up to hearing loss. These test then confirmed their earlier studies with lab mice that showed abnormalities in the hair cells.
Source 1: http://www.newsciencemagazine.com/2010/01/02/elusive-protein-points-to-mechanism-behind-hearing-loss/
Source 2: http://www.wired.com/wiredscience/2010/01/hearing-gain/
Title:Are Hand Sanitizers Better Than Handwashing Against the Common Cold?
Author: they didn't include the author in science daily
Date:March 24,2010
Submitted by: John T.
Summary: This article is all about hand sanitizer is better than using soap and water in killing germs in our hands .The researcher of this is University of Virginia School of Medicine.They say that the hand sanitizer is better to use than using water and soap when washing hands because the hand sanitizer has a ethanol and organic acids that kills virus and rhinovirus.Rhinovirus is a virus that cause colds.Hand to hand contact is the one cause of getting the rhinovirus because you are spreading virus when you shake hands to another person.In the study researchers they compare the hand sanitizer and soap and water when washing hands. When the result is done they figured out that if you use a hand sanitizer that have ethanol and organic acids you can remove 81% of rhinovirus in your hands while the water and soap it only removes 31% of rhinovirus.They say that using a hand sanitizer with ethanol and organic acids can minimize the transmission of viruses.
Source 1:http://www.sciencedaily.com/releases/2010/03/100323223948.htm
Source 2http://www.sciencedaily.com/releases/2008/08/080825203224.htm
Sweeeet! The skinny on sugar substitutes.
By, Emily Sohn
Posted: January 9, 2008
Website: http://www.sciencenewsforkids.org/articles/20080109/Feature1.asp
Submitted By: Adriana C.
Summary: Have you ever been tempted by cookies, candies, soda or chocolate? Well, you are not the only one. These sweet treats may taste great, but are extremely high it sugar which is lots and lots of unnecessary calories. Because these items are so high in calories, people often resort to diet sodas, or food that is made with artificial flavouring which tastes great and has almost no calories. But the question is, are these food and drinks really healthier for you than regular junk food? The answer is undecided. Some say that the artificial chemicals cause things like cancer, allergies and other health issues. While others disagree. Aside from people’s opinions on the sweeteners, over 200 million people in the United States consume sugar-free products. Some people claim that something in some of these products known as aspartame, causes people to gain more weight than regular products that contain more sugar than artificial chemicals. Just think about these things the next time you’re buying something at the store. Should you buy the sugar-free products that claim to contain “less calories”, or will you purchase the regular chocolate bar that has loads of sugar and high calorie intake? The decision is yours!
Two additional sources on related topic:
Source 1: http://www.time.com/time/health/article/0,8599,1711763,00.html
Source 2: http://nutrition.suite101.com/article.cfm/healthy-natural-sweeteners-to-replace-sugar
Title: Is it true that your heart stops when you sneeze and that it’s impossible to keep your eyes open?
Author: Jacquelyn Rudis
Date: November 10, 2008
Website: http://healthlibrary.epnet.com/getcontent.aspx?token=a4c1f00b-d245-44f2-a90e-20b047f84a6a&chunkiid=157001
Written by: Nikki Oldfield
No, this fact is false. When you sneeze your heart doesn’t stop beating. Just before the time you feel a sneeze coming on you breathe in and the pressure in your chest will increase. As you let the sneeze out you exhale forcefully and the pressure drops, but it doesn’t stop. The reason why when people sneeze others will say “god bless you” because people believe that when you sneeze your soul leaves your body, and if nobody “blesses you” evil spirits could enter. It is a false fact that it’s impossible to keep your eyes closed when you sneeze, because it really just depends on the person. It is however a common belief that shutting your eyes when you sneeze is necessary. The reason why many people do tend to shut their eyes when they sneeze is because the nerves connected with your nose or connected and fairly close to your eye nerves, making your body automatically shut your eyes when you sneeze.
Additional Sources:
1. http://healthlibrary.epnet.com/getcontent.aspx?token=a4c1f00b-d245-44f2-a90e-20b047f84a6a&chunkiid=157001
2. http://www.whyzz.com/is-it-true-that-your-heart-stops-when-you-sneeze
Awareness Article #2
Title: Are You Certain You’ve Never Had a Placebo?
Author: Timothy Wogan
Date Article was Written or Posted: 17 Jul 2007
Website:
http://www.firstscience.com/home/articles/humans/are-you-certain-you-ve-never-had-a-placebo-page-2-1_33823.html
Submitted by: Katelyn Knight
Summary: This Article was about how Doctors have discovered that giving a patient a people placebo can work just as effective as the actual treatment. Some of the placebo treatments they have used are injections, radiation and even placebo surgery. The article explains how a placebo can relax someone and lead someone to recovery without any medication or therapy. Resarchers and doctors started trial to test if the placebo they give people works better than the medication. The placebo and medication looked exactly alike and there were two different groups, one taking the test drug and the other, the placebo. Neither of the groups knew about this trial. Using Placebo surgery you have to be very careful to make the same incisions and what not so if someone who actually had the surgery compared the scars with someone who had the plcaebo surgery, that it’s the same scars.
Two Additional Sources related to the Topic:
http://www.nytimes.com/library/magazine/home/20000109mag-talbot7.html
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=1297390
Article Summary #2
by Attyah Jansen March 23, 2010
Source: http://www.sciencedaily.com/releases/2010/03/100322182014.htm
Article Author: (adapted information by) Catholic university – Campobasso
Written on: March 23, 2010
The Article I red is called “Alcohol in moderation is good for sick hearts too”
Basically, the Article is explaining that small doses of alcohol such as two glasses of wine or the same amount of alcohol in the beverage as two glasses of wine is great for the heart.
There have been a lot of conflicts on whether a person that has already had a heart attack, or stroke that consumed alcohol in moderation, would either not change or it would have a negative impact, but they have now stated that a small amount (2 glasses of wine), actually reduces risk of death in people who have in the past suffered from an ischemic Vascular disease. This also works with perfectly healthy people to, the moderated consumptions are assumed to reduce about 20%.
However when talking about Alcohol in moderation the moderation is the key word. It is defiantly not good for you if you consume a week’s worth of alcohol in a couple days, too much alcohol can do damage to your health. The liver, Heart, kidneys, and Brian all get affected by too much alcohol consumption so it’s very important that you take this “treatment” seriously and be careful.
Other related sources http://www.sciencedaily.com/releases/2006/12/061212091918.htm
http://www.sciencedaily.com/releases/2009/06/090601090035.htm
Title: Depressions Evolutioniary Roots
Author: Paul W. Andrews & J. Anderson Thomson Jr.
Date: January 2010
Website: http://www.scientificamerican.com/article.cfm?id=depressions-evolutionary-roots
Submitted by: Annie L.
Summary: This article explains why depression happens in our lives. The article states that depression is a form of adaptation in peoples lives allowing their brains develope into finding the solutions to their problems, and improve their state at mind at solving complicated social problems. It states that the brain is crucial in improving survival and reproduction therefore the pressure on our brain begins to leave causing a large malfunction causing depression. The article compares depression to obesity, and claims it is a problem that shows up because our 'modern conditions' are much more different. The article states that; therapy helps patients with depression to engage with their brain and help them find the end to their problems, stopping their depressive state. (Which usually begins taking place at around adolescence and young adults)
Title: the physics of the guitar
Author: Sam Hokin
Date: March 2010
Website: http://www.bsharp.org/physics/guitar
Submitted by: Harveen G
Summary: The physics used in overtones or harmonic guitar strings are very similar to other string instruments, as they satisfy relations of wavelengths and frequency in the strings. The waves travel faster depending on the string tension, and the frequency therefore changing the pitch of the strings. Strings all must have different wave lengths to make different sounds, that is done by different tensions between the stings that connect on both ends, and by having different mass density from the thinnest string to the thickest. What makes a guitar sound interesting is how much a single string vibrates using rich, strong harmonics. Playing one note on a guitar sounds different than any other string instrument because the overtone on a guitar determined by the size and shape of the frets causes the note to rise and drop in time making it fade away.
Additional Sources
Source 1: http://www.physicsclassroom.com/mmedia/waves/gsl.cfm
Source 2: http://www.ultimate-guitar.com/columns/music_theory/the_physics_of_sound.html
Article Title:Teenagers Programmed to Take Risks
Author: University College London
Date of Article: March 25th 2010
Website: http://www.sciencedaily.com/releases/2010/03/100324211144.htm
Submitted by: Laura A.
Summary:
Researchers did an experiment to see which age group was most likely to take risks. The experiment had 86 men and boys play a computer games that involved decision making and getting points. The researchers found that teenagers were the ones taking the most risks. They also noticed that teens that made riskier decisions and still won were the most happy about their win. The researchers concluded that teenagers, mostly 14 year olds were the ones that took the most risks because of the thrill they got from it.
2 additional sources on related topics:
http://www.indianexpress.com/news/teenagersprogrammedtotakeriskstudy/595610/
http://www.onenewspage.com/news/Science/20100325/9469467/Teenagers-programmed-to-take-risks.htm
How Dead Stars Make Planets
Author: Ker Than
Date article Posted: April 5th, 2006
Website: http://www.space.com/scienceastronomy/060405_supernova_disk.html
Submitted by: Abby Eyford
Summary:
According to this article, Earth is not the center of attention or one of only planets in the universe. New planets are formed when the dead stars outside of the Milky Way die out. When they first are dead they become Nuclear Stars but if the stars solar masses are large enough, the star gets a life back. The stars life is now the life of a planet because of the “fall back” method. The planet formation of these once dead stars are similar to young stars and not alike the gas giants. These new planets are fresh, rocky, small planets.
Additional Sources:
http://www.space.com/scienceastronomy/aas_earthsize_020329.html
http://www.space.com/scienceastronomy/060220_mm_sound_supernova.html
Title: Could Wearing a Helmet be bad for a Biker’s Health?
Author: no author listed
Date: Jan. 27, 2010
Website: http://www.sciencedaily.com/releases/2010/01/100127111112.htm
Submited by: Alan B
Summary:
A study at the University of Bath is questioning whether wearing a helmet is having other, negative effects on the riders health. The study is not questioning the need for helmets, but whether the helmet is bad for a person’s hearing and ability to concentrate. The professors have proven that the level of noise inside the helmet is high enough to damage hearing but haven’t determined which has the greater effect on hearing damage, vibration or air movement. The professors are working to reduce the level of noise which in turn would allow the user to be able to concentrate more freely.
Additional sorces:
http://www.healthyhearing.com/releases/45828-why-wearing-helmet-could
http://www.bath.ac.uk/news/2010/01/27/bikers-health/
Calcium Might Fight Cancer
Coco Ballantyne
Feb 24, 2009
http://www.scientificamerican.com/blog/post.cfm?id=calcium-might-fight-cancer-2009-02-24
Allison S.
This article talked about how calcium could help to reduce the risk or cancer for men and women. In the article they talked about how researchers surveyed nearly 500,000 men and women. In the survey they found out that the ones who drank about 4.5 cups of milk per day had a seven percent less chance of getting cancer. This study was watched for seven years, and the researchers found out that women were most affected by drinking the milk, where as the affect on men was less significant. There are still many who think there is still more research that needs to be done, this study only shows how the calcium is affecting the digestive system and not the whole body. These tests showed that its not calcium alone that would help your chances of not getting cancer, but also vitamin D intake may also play a large role. One of the researchers Marji McCullough says that people should think about reaching the levels of calcium and some vitamin intake but not to think, the more the better.
Source 1: http://food-facts.suite101.com/article.cfm/research-shows-that-your-diet-can-fight-cancer
Source 2: http://www.cancer.org/docroot/NWS/content/NWS_2_1x_Study_Calcium_May_Reduce_Risk_Of_Colon_Cancer.asp
Are hand sanitizers better then cleaning your hands with soap
Story Source:
Adapted from materials provided by American Society for Microbiology.
http://www.sciencedaily.com/releases/2010/03/100323223948.htm
Submitted by Johnathan o
They has been a new study that says hand sanitizers are better than washing
your hands with soap. It’s said when you use a hand sanitizer it gets rid of 80%
of the rhinovirus when soap get rid of 31% of the rhinovirus. The reason why
hand sanitizer works much better is because they contain ethanol and organic
acids. You can stop the infection of the rhinovirus by 4 hours if you use hand
sanitizers. Ethanol works much better because of it can disinfectants your
hand in more of a effective way then using what most people do the washing
they hands with water and soap. The organic acids help with the to stop the
recovery of I virus. So ethanol hand sanitizer is good in the removal of the
rhinovirus the just washing with water and soap.
Source
http://www.asm.org/
http://biology.about.com/od/microbiology/a/handsanitizers.htm
Title: The Physics of Figure Skating
Author: Clara Moskowitz
Date: February 17, 2010
Website: http://www.foxnews.com/scitech/2010/02/17/physics-figure-skating/Submitted by: Jade R.
Have you ever wondered how figure skaters make it look like they are floating on ice? It all comes down to physics. According to this article there are three important things to think about while figure skating; friction, momentum and Newton's third law. Friction is important in figure skating because it allows skaters glide on the ice and it also allows skaters to start and stop their motion. Momentum is important because it allows skaters to have faster and tighter turns. Newton's third law ("For every action, there is an equal and opposite reaction") is also important because it explains how skaters can propel themselves on the ice.
Additional Sources
Source 1: http://www.stuffintheair.com/the-physics-of-ice-skating.html
Source 2: http://www.madsci.org/posts/archives/feb98/887635696.Ph.r.html
Title: A Blind Man Sees
Author: Christie Nicholson
Date: January 5, 2009
Website: http://www.scientificamerican.com/podcast/episode.cfm?id=a-blind-man-sees-09-01-05
Submitted by: Leigh T.
Summary: A paper in Current Biology had said that a patient who suffered from strokes destroyed his visual cortex and his ability to see. The visual cortex is a part of your brain that processes what we see. However, researchers discovered that this patient was still gathering some information through his eyes. They decided to try a test on him that would normally be thought as impossible for a blind person to do. They asked this patient to find his way through a hallway while having to avoid obstacle such as boxes and chairs. He had to do all of this with the hardship of not being able to use his cane. The patient had no trouble getting through the hallway without his cane. What happened was that the visual information that he was “seeing” got through to his brain in different paths than the visual cortex.
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