How fast a lineage divides may explain why some areas contain more species than others. The Cape of South Africa is one of the most floristically diverse regions on Earth and many species are found nowhere else. There are two broad explanations for high species richness in the Cape: either the Cape represents an old, relatively undisturbed area that has accumulated species richness gradually over time or the recent onset of its Mediterranean-type climate triggered rapid diversification.
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Why does the sky glow?
Astronomers have found that the sky glows in very energetic X-rays. They think the X-rays are the last gasp of material being swallowed by massive black holes. These objects hide behind thick walls of gas and dust, walls so thick that only radio waves and very high-energy X-rays can escape. Even moderately energetic X-rays are blocked.
When astronomers find massive black holes swallowing their surroundings, they can identify them by their peculiar
Sexual reproduction can be thought of as a cooperative process in which two individuals come together to produce a new individual. It can also be viewed as a process in which two parties with differing interests, investment, and background interact to produce a new individual. From the former perspective, parental interests are unified (both wish to produce vigorous offspring), while the latter suggests possible conflict. This conflict can occur before or after fertilization. Before fertilizat
Breaking up families can be sad, but in a new method for selecting passive livestock animals, that’s a main ingredient for better long-term productivity, according to a Purdue University geneticist.
The new breeding program, designed to get the best out of the animals, is the first major advance in classical breeding in 20 years, said William Muir of the Purdue Department of Animal Sciences. By picking less aggressive individual animals from a broad range of families, t
Research reported in this week’s New England Journal of Medicine for the first time looks at the role of exercise capacity in predicting a woman’s risk of mortality
Researchers have developed a nomogram (alignment chart) specifically for women that can be used to predict their expected exercise capacity at any given age, as well as demonstrated that the resulting measure is a predictor of the risk of death. Women whose exercise capacity was less than 85 percent the age-predicted va
“Have you ever driven down the road and seen someone mowing the lawn wearing a mask? This is an example of the relationship between allergies and mold spores in lawns. Dr. Phil Colbaugh, research plant pathologist at the Texas Agricultural Experiment Station in Dallas, cites a common image seen in Texas throughout the warm weather months.
Colbaugh is studying the relationship between landscaping choices and practices, seasonal weather and potential exposure to allergenic m
ESA’s Venus Express spacecraft has just completed its last phase of testing in Europe and is ready to be shipped to its launch site at the Baikonur Cosmodrome in Kazakhstan.
One and a half years after its sister spacecraft Mars Express arrived at Mars, Europe’s newest planetary probe is ready to depart on the first leg of its journey to Earth’s own sister planet, the mysterious Venus.
Venus Express was proposed in 2001, as a mission concept to take as much as possible
Today's graphics hardware is very fast but realism can only be achieved by manually tweaking and approximating lighting and visual effects such as reflections…
Normally the measuring device of a force sensor is made of one piece of high-quality spring steel. Afterwards strain gauges are pasted on the device or the…
Since the discovery that short double-strand RNA molecules (siRNAs) can trigger sequence-specific degradation of target RNA in cells, great efforts are going…
The invention affects the novel bacterial enzyme 1,5-anhydro-D-fructose-reductase. In a regio- and stereoselective reaction 1,5-anhydro-D-fructose (AF) is…
The invention concerns a market ready and provable technical process for the “super activation” of polysaccharides (e.g. cellulose, starch, chitin) for the…
This invention covers a new process that allows the stabilization and activation of sensitive catalysts (respectively enzymes) to be used in organic…
The invention consists of a new system for the expression of proteins in E. coli and its applications.
Compared to the state of the art the new autodisplay…
The invention relates to a pharmaceutical composition comprising an inhibitor of SLY-1 (SH3 domain protein expressed in lymphocytes).Further Information: PDF Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V….
The novel conjugate molecules are provided for the manufacture of a medicament for gene therapy, apoptosis, or for the treatment of diseases such as cancer,…
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