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48 articles from PhysOrg

Cooking up a new theory for better accelerators

While particle accelerators may be on the cutting edge of science, the building and preparation of some particle accelerator components has long been more of an art form, dependent on recipes born of trial and error. Now, Ari Deibert Palczewski hopes to change that. A staff scientist at the Department of Energy's Thomas Jefferson National Accelerator Facility, Palczewski has been awarded a DOE...

US corn yields get boost from a global warming 'hole'

The global average temperature has increased 1.4 degrees Fahrenheit over the last 100 years. In contrast, the Corn Belt of the U.S., one of the most agriculturally productive regions of the world, has experienced a decrease in temperatures in the summer during the growing season. Known as the "U.S. warming hole," this anomalous cooling phenomenon, which occurred in tandem with increasing rainfall,...

Genetic risk factor for laryngeal paralysis in miniature bull terriers identified

Laryngeal paralysis is a serious and sometimes deadly disease in some dog breeds that prevents proper opening of the larynx for breathing. In a new study published 24th October in PLOS Genetics, a team of German specialists in canine head and neck surgery and geneticists from the University of Bern identify a mutation responsible for laryngeal paralysis in Miniature Bull Terriers, enabling the...

Higher local earthworm diversity in temperate regions than in the tropics

In any single location, there are typically more earthworms and more earthworm species found in temperate regions than in the tropics. Global climate change could lead to significant shifts in earthworm communities worldwide, threatening the many functions they provide. These are the two main results of a new study published in Science. The research was led by scientists from the German Centre for...

Researchers design tunable, self-recovering dyes for use in next-generation smart devices

The building blocks of rationally designed chemicals are simple elements: carbon, hydrogen, oxygen and so on. These elements can be combined in myriad ways to accomplish a variety of chemicals with different characteristics. Even the same chemical can be treated differently—with pressure or heat, for example—to show drastically different properties. A simpler version is to think of how water...

The shelf life of pyrite

The last 2.6 million years are characterized by glacial cycles, a regular alternation of cold and warm periods. It is widely accepted that changes in the concentrations of carbon dioxide and other greenhouse gases in the atmosphere were largely responsible for these natural fluctuations of cold and warm periods. What exactly triggers the increase in carbon dioxide concentrations that causes the...

GIS-based analysis of fault zone geometry and hazard in an urban environment

Typical geologic investigations of active earthquake fault zones require that the fault can be observed at or near the Earth's surface. However, in urban areas, where faults present a direct hazard to dense populations, the surface expression of a fault is often hidden by development of buildings and infrastructure. This is the case in San Diego, California, where the Rose Canyon fault zone trends...

Schools have critical role to play in supporting adolescents fleeing armed conflict

Communities in high income countries around the world continue to receive record-setting numbers of newcomers fleeing armed conflict. Although education is known to be highly important for refugee and migrant children, relatively little is known about the diversity of associated school-based programs and their likely value in supporting the mental health and psychosocial well-being of the children...

Iron availability in seawater, key to explaining the amount and distribution of fish

People tend to pay more attention to how much food they are eating than to how rich their diet is in essential micronutrients like iron. However, if we do not get enough iron, we can become anemic, which leaves us sluggish and can impair growth and development. In the same way, biologists do not usually consider insufficient iron supply as being an important factor for the nutrition of wild...

Extracting hidden quantum information from a light source

Current super-resolution microscopes or microarray laser scanning technologies are known for their high sensitivities and very good resolutions. However, they implement high light power to study samples, samples that can be light sensitive and thus become damaged or perturbed when illuminated by these devices.

120-year-old extinct lizard specimen revealed by mitochondrial DNA

Together with a Ukrainian colleague, Senckenberg researchers examined the 120-year-old specimen of a "Crimean lizard." Until now, these animals had been considered a species of green lizard restricted to the Crimean Peninsula. Based on the complete mitochondrial genome, the team was able to show that these reptiles actually represent a species introduced from Italy. The results emphasize the...

Women CEOs judged more harshly than men for corporate ethical failures

People are less likely to support an organization after an ethical failure if the business is led by a woman, according to a study published by the American Psychological Association. However, organizations led by women endure less negative backlash for competence failures than those headed by men.