2008 ozone hole larger than last year

Tweet

The 2008 ozone hole – a thinning in the ozone layer over Antarctica – is larger both in size and ozone loss than 2007 but is not as large as 2006.

Study: Even occasional smoking can impair arteries

Tweet

Athens, Ga. – Even occasional cigarette smoking can impair the functioning of your arteries, according to a new University of Georgia study that used ultrasound to measure how the arteries of young, healthy adults respond to changes in blood flow.

Barcelona Declaration 2008: Challenges and Pathways to Earth Sustainability

Tweet

Rong Li Lab probes mechanism of asymmetry in meiotic cell division

Tweet

The Stowers Institute's Rong Li Lab has characterized a mechanism that allows for asymmetrical cell division during meiosis in oocytes. By tracking chromosome movement in live mouse oocytes, the team discovered that chromosomes can recruit to their vicinity a protein called formin-2. This protein allows the oocyte to retain the majority of the cytoplasm – a requirement for embryonic development after fertilization – while the other daughter cell (called a polar body) resulting from the asymmetric division gets only a minimal amount and subsequently dies.

Herbal menopause therapy a good fit for breast cancer patients?

Tweet

COLUMBIA, Mo. – When it comes to understanding the effectiveness and safety of using herbal therapies with other drugs, much is unknown. Now, a University of Missouri researcher will study how black cohosh - an herbal supplement often used to relieve hot flashes in menopausal women - interacts with tamoxifen, a common drug used to treat breast cancer.

Why could prednisolone suppress the hepatic ischemia-reperfusion injury?

Tweet

U of T creates fake proof personality test

Tweet

TORONTO, ON. - Psychologists from the University of Toronto have developed a personality inventory that can predict who will excel in academic and creative domains, even when respondents are trying hard to fake their answers.

What is the influence of tumor removal on the serum level of carbohydrate's antibody?

Tweet

Hack-a-vote: Students at Rice learn how vulnerable electronic voting really is

Tweet

This week undergraduate and graduate students in an advanced computer security course at Rice University in Houston are learning hands-on just how easy it is to wreak havoc on computer software used in today's voting machines.

As part of his advanced computer science class, Rice University Associate Professor and Director of Rice's Computer Security Lab Dan Wallach tests his students in a unique real-life experiment: They are instructed to do their very best to rig a voting machine in the classroom.

Here's how the experiment works:

What is the pathogenesis of liver damage induced by ethanol?

Tweet

They investigated the effects of ethanol on the IGF-I system with the involvement of JNK1/2 activity and ADH by using each chemical inhibitor in primary cultured rat hepatocytes. The results indicate that ethanol inducedp-JNK1/2 activation is associated with the IGF-I system and cell viability in hepatocytes. Furthermore, alcohol dehydrogenase is involved in the relationship between ethanol-induced inactivation of p-JNK1/2 and the changes of the IGF-I system and cell viability.