The jaguar, Panthera onca, has become an animal in danger of extinction over recent decades, due to the fragmentation and deterioration of its habitat, as well as hunting and illegal animal smuggling. As a result of this vulnerability, no individuals have been seen in the centre of Mexico since the start of the 20th Century. However, Mexican and Spanish scientists have now managed to photograph a male jaguar in this region.

Could a hereditary illness ever spread by contamination? Researchers at the CNRS Laboratoire d’enzymologie et biochimie structurales, studying Huntington’s disease in collaboration with Professor Ron Kopito’s team at Stanford University, have shown that the normal form of huntingtin protein can acquire an abnormal form without any modification of its genetic code. These researchers observed that clumps of abnormal huntingtin protein, characteristic of Huntington’s disease, could induce clumping in the normal form of the protein.

Think there's not enough time to do everything you need to do?   You may just need to change your perception, says Michael DeDonno, a doctoral student in psychology at Case Western Reserve University.

If you don't think you have enough time, you've already given up.

DeDonno recently studied 163 subjects performing the Iowa Gambling Task (IGT), a popular psychological assessment tool, to investigate the effect of perceived time pressure on a learning-based task. His study, the first to look at the relationship between perceived time pressure and IGT performance, was published in the December issue of Judgment and Decision Making. 

Scientists have used a computer simulation to predict what the very early Universe would have appeared like 500 million years after the Big Bang.  The images, produced by scientists at Durham University's Institute for Computational Cosmology, show the "Cosmic Dawn" - the formation of the first big galaxies in the Universe.


Universe 590 million years after the Big Bang. Credit:Alvaro Orsi, Institute for Computational Cosmology

Demands on telescope technology are rapidly increasing as astronomers look at fainter and fainter objects in the night sky. The large amount of light collection area required to view very dim objects poses a number of significant engineering problems to future telescope designers. To collect short-wavelength radio waves, for instance, an antenna miles across would be required. This has led engineers to construct multiple small telescopes whose signals can be integrated, providing the necessary level of detail.

Physicians have known for years that there exists a link between cardiac surgery and a subsequent decline in cognitive function of patients.  According to recent research, “previous studies have reported an 11% to 75% incidence of postoperative cognitive decline among cardiac surgery patients” (Slater et. al). However, until recently, the cause for this link was largely unknown.  Coronary Artery Bypass Grafting (CABG) surgery, continues to produce clinical results demonstrating cognitive decline in some patients despite improved surgery practices.

What do men want?

Biology’s simple answer is that men want to survive to pass on their genes. But when you throw this goal into a complex society of competing men, discerning women and morality, biology gets confused.

For better or for worse, behavioral economics has the answers.

I have been working in research for 36 years now.  As the millennium turned, and our department found itself being starved of staff like the Hodja’s Donkey, I found myself being called upon to assume some small teaching roles.  I found two incompatible things: one, that I really enjoy teaching, even more than research; two, that there is so much physics that I never had learned properly.

There's no question younger scientists who have only really known the Bush presidency believe that Bush was a problem in science, despite the budget increases and the fact that a lot of really terrific science got done in the last 8 years - so they may not see that a stimulus package in science under a president everyone has enthusiasm for could be setting us up for the very same funding bubble (and collapse) that occurred under Bush.

You mat have read recently about chemical fossils discovered in sedimentary rocks in Oman.   Those fossil steroids, remnants of a type of sponge known as Demosponges, are between 635 and 750 million years old. They date back to around the time of the Marinoan glaciation, the last of the huge ice ages at the end of the Neoproterozoic era.