Camera-traps capture wild chimps' nighttime raiding activities

Wild chimpanzees living in disturbed habitat may use innovative strategies, like foraging crops at night, to coexist with nearby human activities, according to a study published October 22, 2014 in the open-access journal PLOS ONE by Sabrina Krief from Muséum...

Thermal paper cash register receipts account for high bisphenol A (BPA) levels in humans

Vom Saal's team is providing the first data that BPA from thermal paper used in cash register receipts accounts for high levels of BPA in humans.Bisphenol A (BPA) is a chemical that is used in a variety of consumer products, such as water bottles, dental composites and resins used to line metal food and beverage...

Big black holes can block new stars

This is elliptical galaxy NGC 1132, as seen by NASA's Chandra X-Ray Observatory; the blue/purple in the image is the X-ray glow from hot, diffuse gas that is not forming into stars.Massive black holes spewing out radio-frequency-emitting particles at near-light speed can block formation of new stars in aging galaxies, a study has found.

Backpack physics: Smaller hikers carry heavier loads

A group of backpackers hike on an Outward Bound course in the La Sal Mountains, UT.Hikers are generally advised that the weight of the packs they carry should correspond to their own size, with smaller individuals carrying lighter loads. Although petite backpackers might appreciate the...

University of Tennessee study finds fish just wanna have fun

A cichlid fish strikes a bottom-weighted thermometer that would immediately right itself. It was often struck repeatedly in bouts.Fish just want to have fun, according to a University of Tennessee, Knoxville, study that finds even fish "play."

New tracers can identify frack fluids in the environment

Scientists have developed new geochemical tracers that can identify hydraulic fracturing flowback fluids that have been spilled or released into the environment.

A global surge of great earthquakes from 2004-2014 and implications for Cascadia

The last ten years have been a remarkable time for great earthquakes. Since December 2004 there have been no less than 18 quakes of Mw8.0 or greater -- a rate...

Penn researchers untangle the biological effects of blue light

This image depicts Geoffrey K. Aguirre, MD, PhD, a behavioral neurologist and associate professor in the department of Neurology; Manuel Spitschan, a Penn graduate student in psychology; and David Brainard, PhD, RRL professor of Psychology, director of the Vision Research Center and director of the Institute for Research in Cognitive Science; found that melanopsin, a protein and short wave-sensitive S-cones, both in the retina, have opposite effects and compete for control of the pupil in response to blue light.Blue light can both set the mood and set in motion important biological responses. Researchers at the University of Pennsylvania's School of Medicine and School of Arts and Sciences have...

Heavy metal frost? A new look at a Venusian mystery

Venus is hiding something beneath its brilliant shroud of clouds: a first order mystery about the planet that researchers may be a little closer to solving because of a new...

John Lennon commemorated by naming a new tarantula species from South America after him

A newly described tarantula species from Western Brazilian Amazonia was named Bumba lennoni in honor of John Lennon, a founder member of the legendary band the Beatles. The new species...

Physicists solve longstanding puzzle of how moths find distant mates

The way in which male moths locate females flying hundreds of meters away has long been a mystery to scientists.

This is the Huan Tran Telescope in the Atacama Desert of Chile. The POLARBEAR microwave bolometers are mounted on the telescope to study the polarization of light from a period 380,000 years after the Big Bang.

Cutting the ties that bind

An oocyte with decreased Topoiosmerase II levels in heterochromatic region of the X chromosome (green) failed to separate while heterochromatic region of the 4th chromosome (red) is stretched into abnormal projections.The development of a new organism from the joining of two single cells is a carefully orchestrated endeavor. But even before sperm meets egg, an equally elaborate set of choreographed...

Exploring X-Ray phase tomography with synchrotron radiation

Phase-contrast imaging is a technique for scanning the volumes of soft tissues like tumors or internal organs, but with much greater contrast than conventional CT scans. This image shows a non-invasive 'slice' of a rat's heart tissue made with X-ray phase tomography by propagation-based imaging, which provides sharper data with higher resolution than phase tomography using X-ray grating interferometry (see image #2).X-ray phase tomography is an imaging technique that uses penetrating X-rays to create volumetric views through "slices" or sections of soft biological tissues, such as tumors, and it offers strongly...

Triplet threat from the sun

This is the initial UV excitation leading to photofragmentation.The most obvious effects of too much sun exposure are cosmetic, like wrinkled and rough skin. Some damage, however, goes deeper -- ultraviolet light can damage DNA and cause proteins...

Whole exome sequencing closer to becoming 'new family history'

Approximately one-fourth of the 3,386 patients whose DNA was submitted for clinical whole exome testing received a diagnosis related to a known genetic disease, often ending a long search for...

Paper-based synthetic gene networks could enable rapid detection of ebola and other viruses

Synthetic gene networks hold great potential for broad biotechnology and medical applications, but so far they have been limited to the lab. A study published by Cell Press October 23rd...

Massive debris pile reveals risk of huge tsunamis in Hawaii

Hawaii's evacuation maps are based in part on the 1946 tsunami, the most destructive tsunami in Hawaii's recent history. But new research shows that mammoth tsunamis, many times the size of the 1946 event, have struck the island in the past, and may again in the future.A mass of marine debris discovered in a giant sinkhole in the Hawaiian islands provides evidence that at least one mammoth tsunami, larger than any in Hawaii's recorded history, has...

Fast modeling of cancer mutations

Sequencing the genomes of tumor cells has revealed thousands of genetic mutations linked with cancer. However, sifting through this deluge of information to figure out which of these mutations actually...

UNH scientist: Cosmic rays threaten future deep-space astronaut missions

Crewed missions to Mars remain an essential goal for NASA, but scientists are only now beginning to understand and characterize the radiation hazards that could make such ventures risky, concludes...

What americans fear most -- new poll from Chapman University

Chapman University has initiated the first comprehensive nationwide study on what strikes fear in Americans in the first of what is a planned annual study. According to the Chapman poll,...

Improved electricity access has little impact on climate change

Improving household electricity access in India over the last 30 years contributed only marginally to the nation's total carbon emissions growth during that time, according to a new study published...

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