Scientists have developed many theories to explain the Triceratops
horns. Some believe they were displays to attract mates, like the feathers of a peacock, others claim they were to fend off predators like the tyrannosaurus.
In a Plos one paper published in January 2008, researchers from the University of Wisconsin, The Alf Museum of Paleontology in California and The Royal Tyrell Museum of Paleontology in Canada, provided evidence that the horns were used to settle disagreements… Continue
Added by Jennifer Rust on January 29, 2009 at 8:00pm —
I'm a musician and I grew up in an environment where music was ubiquitous, so while I have a great sense of rhythm, it's always confused me that my brother didn't (despite that he's a musician as well, with perfect pitch, no less ::grumbles::). Turns out, it might be something our environment had nothing to do with.
From the article from USA Today:
"Studying children's sense of musical timing has long been challenging. The babies in the study couldn't even grab their toes,… Continue
Added by Kelly Lagor on January 26, 2009 at 6:32pm —
The FDA has given the go-ahead to the biotech firm Geron to treat spinal cord injury patients with human stem cells.
From the Wired article:
"The approval is expected to the first of several trials involving embryonic stem cells. A recent CAMR report found that nine companies, including Geron, were in the process of developing human embryonic stem cell treatments.
Embryonic stem cells are like blank slates that can be transformed into different types of tissue.… Continue
Added by Kelly Lagor on January 23, 2009 at 3:16pm —
A really cool article from the New Scientist website covers the slow unraveling of Darwin's idea of the tree of life, where all living organisms (the branches of the tree) come from a single ancestor (the trunk). The author relates the story of how after the discovery of the structure of DNA in 1953, scientists began comparing DNA sequences of ribosomes to fill in the tree, they began noticing some inconsistencies.
From the article:
"The problems began in the early 1990s… Continue
Added by Kelly Lagor on January 23, 2009 at 10:49am —
RNA (ribnucleic acid), is sometimes thought of as DNA's less important relative. But in vitro evolution is shining a new light on the importance of RNA. RNA is built like DNA, but can sometimes act like proteins. Using these two abilities together, RNA may have gained a foothold in the primordial environment and become the first life on planet Earth.
The Joyce Lab at the Scripps Research Institute has recently published a paper detailing the first system in which two RNA molecules… Continue
Added by Jennifer Rust on January 21, 2009 at 9:00am —
Elephants never forget, and this may be detrimental to the overall health and fitness of elephants who have been through traumatic events. The Mikumi National Park in Tanzania experienced extremely high rates of poaching prior to the ban on the ivory trade in 1989. Twenty years later researchers from the University of Washington Center for Conservation Biology looked at stress levels and reproductive output for elephants who had lost family members.
The study suggests that elephants who… Continue
Added by Jennifer Rust on January 20, 2009 at 3:00pm —
For anyone that knows some thing really cool and new about
science and you want to tell some one about it you could tell
me about it. Just leave it as a comment on my page or you
could ask me to invite you as a friend and you could tell me
all about your new science dicovery.
Added by Felix Padilla on January 20, 2009 at 11:00am —
Everyone knows about the flavors sweet, salty, bitter and sour. But there is another flavor which humans can detect known as umami. Umami may not be as famous as the other flavors people encounter, but that doesn't mean scientists are going to let the mechanism by which it is detected remain a mystery. A recent study published in PNAS has shown that detection of the flavor umami is the work of G-protein coupled receptors, which are also the receptors for sweet flavors. When these receptors… Continue
Added by Jennifer Rust on January 18, 2009 at 7:40pm —
I love articles like this. Sometimes I'm nostalgic for the less ethical days of science; the days of Zimbardo and his now infamous prison experiment. I understand why having safeguards in place are necessary for the safety of the subjects of research studies. The great thing about this article is that it turns this idea on its head - what about the safety of the researchers?
A particular study comes to mind (I can't remember the researcher who conducted it though - anyone know?)… Continue
Added by Kelly Lagor on January 17, 2009 at 4:58pm —
I'm just going to start off by saying that anything involving space-time or quantum physics hurts my brain. Many times, it's so beyond my every day experience with matter that my brain just puts its fingers in its ears and begins humming Camptown Races.
That having been said, an article appearing in a recent edition of New Scientist deals with a new discovery that bends the very idea of reality.
From the article:
"For many months, the GEO600 team-members had… Continue
Added by Kelly Lagor on January 17, 2009 at 4:47pm —
A recently published National Academy of Science report
"Each year, tens of millions of Americans, young and old, choose to learn about science in informal ways -- by visiting museums and aquariums, attending after-school programs, pursuing personal hobbies, and watching TV documentaries, for example. There is abundant evidence that these programs and settings, and even everyday experiences… Continue
Added by Tom Munnecke on January 16, 2009 at 9:20am —
I am a science and science fiction writer. Also founder organiser of PEOPLE'S SCIENCE a voluntary service organisation for the popularisation of science.
I am inclined to present a paper on the most pressing issues like global warming, ozone layer depletion, alternativre energy vehicle and other matters of interest.
I would welcome a travel grant and accommodation arrangement. as I am planning a trip to NASA., I want to make the festival a part of my… Continue
Added by K. MOHAN(Mohan Sanjeevan) on January 16, 2009 at 12:27am —
Darwin taught us all about the survival of the fittest - the "fitness function" by which life has evolved
over the past 4 billion years or so. However, we are the first generations of the first species to reach a point of intelligence that we can understand and affect our own evolution. This is not your grandfather's evolution. The birth control pill in the 60's allowed us shift our species' hormones and triggered a sexual revolution. Our understanding of DNA and the human genome… Continue
Added by Tom Munnecke on January 14, 2009 at 9:13am —
UCSD researcher Bing Ren has been granted $16.6 million from the National Institutes of Health to study how human genes are activated or inactivated.
The five-year grant supports research at the San Diego Epigenome Center, located at the Ludwig Institute for Cancer Research at UCSD. The center is studying changes in gene function unrelated to changes in a gene's DNA sequence, with the goal of gaining new insights into diseases.
The complete set of these epigenetic changes is called… Continue
Added by Bradley J. Fikes on January 13, 2009 at 6:55pm —
I am the coordinator of the Upward Bound program
here at San Deigo State University.
We conduct a five-week summer program on campus.
I am looking for qualified high school teachers
who are able to teach Bacteriology, Virology, Immunology.
If you are that person
if you have someone you know in mind
who fits this description ...
let me know -- you can e-mail at… Continue
Added by Brad Brown on January 12, 2009 at 12:36pm —
After reading several letters and an editorial in Science
about impact factors and the negative effect they have on science in general (DOI 10.1126/science.1165316 and Oct. 10, 2008 letters for example), I have decided to propose a new method of publication that may solve this problem.
This solution has three broad goals: 1. massive participation; 2. open access; and 3. fair evaluation of work.
First of all, this new… Continue
Added by Ben Gallarda on January 7, 2009 at 3:13pm —
Hi, I'm new to MySDscience, and just found out about it through the SDSF newsletter. I've been looking into the web site for the festival to try and get some solid information on events I can attend during discovery week, but I can't find any information on the dates or times of the individual events. Does any one know why that is, or where the information might be posted?
Added by Danee on January 7, 2009 at 1:32pm —
Blog Your Science Competition: Submit your blog posts describing your science interests or blog about your expertise or simply your
thoughts about science. Best blog stories (1 per month) will be
recognized, featured and the author will get a $20 Starbucks card.
(This is a monthly contest beginning at the 1st of the month).
Go Blog Now…
Added by Jose Morachis on January 4, 2009 at 3:34am —