University of Illinois Students experiencing the visualizations for themselves on a visit to NSCA |
Sunday, October 31, 2010
AVL - Creating the Future
Tuesday, October 19, 2010
In-vitro fertilization
32 years ago, Robert G Edwards developed technology called in-vitro fertilization. In this process, egg cells are fertilized by sperm outside the body, and then placed into the uterus of a woman in hopes of a successful pregnancy. After 4 million successful births, Edwards is being rewarded with the Nobel Prize for Medicine at the age of 85. While this was a breakthrough in science, it was met with more controversy than acclaim, as people considered this procedure unnatural and immoral. Today, this procedure is rather common and accepted. But now, the thing to worry about is how far people will take this power. Advances in IVF technology could lead to more than the creation of life, but rather the designing of life, through genetic engineering. This new idea is being received in the same way Edwards’ idea was 32 years ago. The thought that this could lead to a superhuman race has sparked another controversy.
Written and recorded in Room 1 Gregory Hall
Thursday, October 14, 2010
Environment Saver at UIUC
Floating telescoping weir skimmer/ Photo by Hsin Yu Chang |
Illinois Sustainability Technology Center
Friday, October 8, 2010
Galaxy Zoo Podcast
In my profession, journalists are trying to figure out what comes next for journalism. Stories created by members of the public are called citizen journalism or participatory journalism. Some journalists say we need more direct work from the public. The world of science also is figuring out both how to tell the story of science to the public, and how to involve the members o f the public in discovery. Web projects allow that. At Galaxy Zoo, people get to classify galaxies according to their shapes. To do this, viewers look at pictures of galaxies taken by the Hubble telescope. They decide if a galaxy is spiral or elliptical and classify the direction of its rotation. Apparently people are better at identifying the shapes than supercomputers are, so regular people add to the data. At Galaxy Zoo, everybody can be an astronomer. Everybody can be a scientist. This is Jennifer Follis for Science and the Media.
Thursday, October 7, 2010
Smart diet, better outcome
Then how? While the majority of people want to be fit, not all of them achieve their goals because it is not an easy task losing weight while keeping the body healthy. Apart from the fact that it is a hard task losing weight, a lot of people do experience that their effort does not pay off. In order to efficiently lose weight and not damage the body’s overall functioning, it is important to know what to do and what to avoid.
Many people know that low-fat diet is necessary in keeping the body in shape, but they seem to ignore the impact carbohydrates have upon the body. Carbohydrates are, just like fats, stored as extra body fat when surplus calories remain. And, because it is easy to consume carbohydrates from many different sources, people tend to eat excessive amount of carbohydrates while not noticing it. In order to lose weight, people should not only reduce the amount of fat they consume but also cut off the amount of carbohydrates they eat throughout the day.
What about protein? Protein is important because it keeps the person from losing muscles when the calorie intake is significantly reduced. Muscles are very important in losing weight, because more muscle results in higher metabolism, which means that the person can eat more and still lose weight. (Kim, 2010) This is the main reason muscular exercise is more important than aerobic exercise in losing weight. More muscle, as stated above, increases the body’s metabolism, and later on prevents the so-called yo-yo effect in which the lost weight comes back rapidly. Foods that are low in fat and high in protein include chicken breast and beans. One thing to be careful about protein is that the surplus is stored as fat, just like any other nutrients.
Of course, it is important to exercise both aerobically and muscularly. However, one cannot lose weight if he/she does not change his/her diet. Eat smart and lose your weight efficiently. Always remember that vegetables can help you fill up your stomach without many calories being taken in, and that drastically reducing calorie intake can have detrimental effects to your body, such as hair loss.
Information source taken from: Korean Ministry of Health & Welfare
Wednesday, October 6, 2010
Dispersants: Dish Soap or Deadly Poison?
The use of dispersants has long been controversial due to the unknown effects they may have on the environment. Dispersants act like dish soap: think of them working like your lemon-scented dish detergent you use to clean your dinner plates. They have properties to separate the oil into smaller droplets so that the cleaning process is easier. However, unlike dish soap, dispersants contain potentially hazardous chemicals. The effects of these chemicals are currently indefinite, though there have been reports of BP spill workers becoming ill due to exposure to dispersants. If there is notable harm, why aren’t dispersants being used in moderation? Scientists admit it was logical to use dispersants at first, but we should be trying to eliminate the reliance on something that could potentially cause greater harm in the future.
Tim Lindsey, a scientist working at the ISTC at the University of Illinois Urbana-Champaign, is one of the people who is researching an alternative to separating oil from water without the use of dispersants. He firmly believes that “one should not optimize only one component if an entire system is at stake.” Currently, Lindsey is testing out an oil skimmer and filter that would separate oil from water without the use of harmful chemicals. There are people all over the world like Lindsey trying to solve problems, but at the same time keeping in mind the long-term effects of their findings.
Maybe It's Not So Random...
How many times have you said that something is “so random”? How many times is that something really random? If you think about it, we throw the term around all the time, but never really think about what it entails. Radio Lab DJs Jad and Robert explore the wonder of randomness in an episode called Stochasticity. Stochasticity is, as they put it, "a wonderfully slippery and smarty-pants word for randomness."
Tuesday, October 5, 2010
The Proper Flow of Energy
Energy is one of the most expensive resources we use, yet it is also a resource we tend to waste quite often. Well, located at the University of Illinois at Champaign-Urbana lies the Illinois Sustainable Technology Center (ISTC). The ISTC is here to help us with our terrible waste habits, which is a global problem.
Energy inefficiency is a common flaw of the world. People always tend to go with the lowest bidder, but in the long run may end up spending more money while using too much energy. Problems like these are the ISTC’s specialty. Their goal is to help organizations discover the problems of being wasteful.
According to the ISTC, the problem of being wasteful starts with the system. “The key to sustainability is the development and implementation of better systems,” said Tim Lindsey, a representative of the ISTC. In a class visit to the center, Lindsey pointed out that the ISTC works to find better solutions to run a system more energy efficiently. When doing this, the ISTC does a lot of research. After the research aspect of their job is complete, they help spread the word to businesses all over the world by providing their knowledge.
Once businesses realize the problems of their inefficient habits, they improve their habits. Therefore, instead of paying more for energy in the long run, businesses learn to pay more now and use less energy, thus saving money in the future. It is small concepts like these, that the ISTC provides, which can be a big difference to many businesses.
The ISTC has a motto they go by. Lindsey said, “You become more sustainable when you become less wasteful.” They truly embody this type of character. By providing ways for businesses to become less wasteful, they help them become more energy efficient and make it possible for businesses to keep a little bit more change in their pockets, which is always a good thing.
Understand The World Better With Visualization
Less Talk is More Annoying
Yes, this chatter and noise may be annoying and distracting to most, which seems harmless, but there may be other serious side effects. Ever try studying, reading a book, or even focusing on something while listening to a "halfalogue"? If so, you would probably find this task very difficult. Personally, I find it very frustrating to listen to someone talk on the phone because I find myself always thinking about what the other person is saying on the other end of the phone. Emberson says this makes my brain try to focus more intensely, in order to fill in the missing holes in the conversation and make sense of everything.
Imagine if you heard only half of a scary murder story. You might find yourself asking questions like: How did it end? Did anyone get hurt? Who was the killer? These questions are similar to the questions you may be asking yourself when listening to half of a cell-phone speech. Because the speech is less predictable, it causes the brain to focus on the unheard speech instead of the intended task, therefore decreasing the progress on the intended activity. Emberson has also done studies to prove that unheard cell-phone chatter causes the brain to have slower reaction times, specifically in driving.
So, the next time you can't focus on your studies, you might want to blame your neighbor sitting on the bus next to you on the phone before you blame yourself.
Sunday, May 2, 2010
Flexible Electronic Sensors
This spring a group of researchers developed a flexible electronic sensor to better map the electrical system of the heart. This sensor will allow doctors to view the heart as a whole, thus making better judgments on where a short circuit is occurring.
John A. Rogers, a professor of material science and engineering at University of Illinois Urbana-Champaign, has been working on this project for seven years. He is a huge contributor to the whole process and believes that these sensors will enhance the world of surgical techniques, sooner rather than later.
Essentially, this team has created an integrated circuit that will record electrical activity of the heart to get a complete understanding of the inside of a body. This idea of using a computer chip to diagnose a problem is not unheard of; Toyota places a box filled with sensors, circuits and computer chips into every car made to track the car’s record and to then diagnose the cause of an accident. Though a car might be able to handle these big, hard, brittle and rigid devices, the human body cannot. Instead this new sensor is small, soft, stretchable and flexible for easier insertion into a body.
These tiny wafers are inserted in through the chest wall, placed on the heart tissue and every few minutes moved around to get the whole picture of the heart of a pig, the only test subject used so far. The surgery technique used is less intrusive than before, using only a tiny incision because only a small instrument is needed to place the sensor on the designated location. This new surgery also improves the stability of the body during surgery and minimizes the inflammation afterwards. The activity of the sensors provides a full evaluation of the heart’s rhythms, allowing the doctors to figure out a way to treat cardiac arrhythmias.
What makes these electronic sensors unique in the field of sensors, is their ability to move without dissolving in the body’s liquid. There are 2,016 silicon nanomembrane transistors in every sensor that is covered with three layers of thin silk. These transistors will monitor the electricity coursing through the heart, and work together to complete the map of the heart. Rogers and his team had tried multiple materials to cover the sensor without taking the flexibility from the device. Either these other materials compromised the stretchablity, or were too thick. They came across a silk substance and finally found that three layers was the right amount to allow the wafer to work. The silk helps provide a barrier for the sensor so it can still flex easily without getting tangled once touching the wet heart. Because the wafer is small and bendable, no large probes are needed in surgery to adjust the sensor. No adhesives are needed to make the sensor adhere without being stuck on the organ; the sensor can easily be lifted off, moved, or taken out. The twelve researchers believe this is a completely unique concept in the world of medicine.
Rogers has said he is hoping his research will lead to many advances within the health community, including finding reasons for disabilities in the brain, innovations in the eye, and development of better prosthetics.
Ahlberg, Liz. “Flexible electronics could help put off-beat hearts back on rhythm.” News Bureau/ Illinois. N.p., 24 Mar. 2010. Web. 19 Apr. 2010.
“ Biocompatible Electronics Could Enable New Surgical Applications, Put Off-Beat Hearts Back On Rhythm.” Medical News Today. N.p., 26 Mar. 2010. Web. 21 Apr. 2010.
“A Conformal, Bio-Interfaced Class of Silicon Electronics for Mapping Cardiac Electrophysiology.” Science Translational Medicine 24 Mar. 2010: 10. PDF file.
“Dissolvable Flims of Silk Fibroin for Ultrathin Conformal Bio-Integrated Electronics.” Nature Materials 18 Apr. 2010: 26. PDF file.
“Flexible silicon device could help put offbeat hearts back on rhythm.” Buzz 7. N.p., 25 Mar. 2010. Web. 21 Apr. 2010.
Hsu, Jeremy. “Flexible Sensor Array Wraps Beating Hearts to Map Cardiac Activity in Real Time.” PopSci The Future Now. N.p., 26 Mar. 2010. Web. 19 Apr. 2010.
“Materials and Mechanics for Stretchable Electronics.” Science AAAS 26 Mar. 2010: 6. PDF file.
Rogers, John A. “A Conformal, Bio-Interfaced Class of Silicon Electronics for Mapping Cardiac Electrophysiology.” Science AAAS. N.p., 24 Mar. 2010. Web. 19 Apr. 2010.
“Supplementary Materials for A Conformal, Bio-Interfaced Class of Silicon Electronics for Mapping Cardiac Electrophysiology.” Science Translational Medicine AAAS 24 Mar. 2010: 83. PDF file.