This is a holotype of <i>Yawunik kootenayi</i>.

Dark matter even darker than once thought

<p>This collage shows NASA/ESA Hubble Space Telescope images of six different galaxy clusters. The clusters were observed in a study of how dark matter in clusters of galaxies behaves when the clusters collide. 72 large cluster collisions were studied in total.

<p>The clusters shown here are, from left to right and top to bottom: MACS J0416.1-2403, MACS J0152.5-2852, MACS J0717.5+3745, Abell 370, Abell 2744 and ZwCl 1358+62.Astronomers using observations from the NASA/ESA Hubble Space Telescope and NASA's Chandra X-ray Observatory have studied how dark matter in clusters of galaxies behaves when the clusters collide. The results,...

Antarctic ice shelves rapidly thinning

A new study led by Scripps Institution of Oceanography at UC San Diego researchers has revealed that the thickness of Antarctica's floating ice shelves has recently decreased by as much...

The brain in the supermarket

Say you're out shopping for basic household goods -- perhaps orange juice and soup. Or light bulbs. Or diapers for your young child. How do you choose the products you...

Thousands of atoms entangled with a single photon

Physicists from MIT and the University of Belgrade have developed a new technique that can successfully entangle 3,000 atoms using only a single photon. The results, published today in the...

Wearable device helps vision-impaired avoid collision

Gang Luo, Ph.D., Associate Scientist at Mass. Eye and Ear/Schepens, and Assistant Professor of Ophthalmology at Harvard Medical School, adjusts the wearable device that his team created to help those who are visually impaired avoid collision while walking.People who have lost some of their peripheral vision, such as those with retinitis pigmentosa, glaucoma, or brain injury that causes half visual field loss, often face mobility challenges and...

Bats obey 'traffic rules' when trawling for food

Foraging bats obey their own set of 'traffic rules', chasing, turning and avoiding collisions at high speed, new research from the University of Bristol has found.

Antibiotic effectiveness imperiled as use in livestock expected to increase

Princeton University-led research found that antibiotic consumption in livestock worldwide could rise by 67 percent between 2010 and 2030, and possibly endanger the effectiveness of antimicrobials in humans. Pigs outpace chickens and cattle in estimates of antimicrobial consumption in countries in the Organization for Economic Co-operation and Development, which is a consortium of 34 nations that includes the United States and most of the European Union countries. The graph measures antibiotic consumption in milligrams (bottom bar) in cattle, chickens and pork per population correction unit, or PCU, which corresponds to 1 kilogram of the respective animal. The average amount of antibiotics increases from left to right. The researchers found that pigs could consume an average 172 mg of antibiotics per kilogram of animal compared to 148 mg for chickens and 45 mg for cattle.Antibiotic consumption in livestock worldwide could rise by 67 percent between 2010 and 2030, and possibly endanger the effectiveness of antimicrobials in humans, according to researchers from Princeton University, the...

To survive, a parasite mixes and matches its disguises, study suggests

This is a microscopy image of <i>Trypanosoma brucei</i>, the African sleeping sickness parasite.Orchestrated costume changes make it possible for certain nasty microbes to outsmart the immune system, which would otherwise recognize them by the telltale proteins they wear. By taking the first...

Researchers master gene editing technique in mosquito that transmits deadly diseases

Mosquito larvae from two different lines fluoresce in different colors thanks to genetic tags that were inserted using the CRISPR-Cas9 gene editing system.Traditionally, to understand how a gene functions, a scientist would breed an organism that lacks that gene -- "knocking it out" -- then ask how the organism has changed. Are...

Engineers develop new methods to speed up simulations in computational grand challenge

Stability regions |&sigma;(z)| ? 1 for the low-storage IMEXRK schemes considered in this paper.Engineers at the University of California, San Diego, have developed a new family of methods to significantly increase the speed of time-resolved numerical simulations in computational grand challenge problems. Such...

A peek at the secret life of pandas

A camera trap captures a panda walking through the snow in the Wolong Nature Reserve in Sichuan, ChinaReclusive giant pandas fascinate the world, yet precious little is known about how they spend their time in the Chinese bamboo forests. Until now.

Sexual selection isn't the last word on bird plumage, UWM study shows

The Gouldian finch was one of 977 species examined by UWM biologist Peter Dunn and his research partners in a worldwide study of the evolution of bird colors. This photograph shows a male.In the world of bird fashion, the guys seem to have all the fun: brighter feathers, sharper accessories, more pizzazz.

Big data allows computer engineers to find genetic clues in humans

Big data: It's a term we read and hear about often, but is hard to grasp. Computer scientists at Washington University in St. Louis' School of Engineering & Applied Science...

Common bacteria on verge of becoming antibiotic-resistant superbugs

Bacteria that cause many hospital-associated infections are ready to quickly share genes that allow them to resist powerful antibiotics. The illustration, based on electron micrographs and created by the Centers for Disease Control and Prevention, shows one of these antibiotic-resistant bacteria.Antibiotic resistance is poised to spread globally among bacteria frequently implicated in respiratory and urinary infections in hospital settings, according to new research at Washington University School of Medicine in...

Solving molybdenum disulfide's 'thin' problem

The promising new material molybdenum disulfide (MoS2) has an inherent issue that's steeped in irony. The material's greatest asset--its monolayer thickness--is also its biggest challenge.

30 new species discovered in Los Angeles in first-ever intensive urban biodiversity survey

Six of the 30 new fly species discovered in Los Angeles by the Natural History Museum of Los Angeles County's BioSCAN project. All these are flies in the family Phoridae, genus <i>Megaselia</i>, and were named to honor the collecting site hosts where the new species were found. From left to right, these specimens are: <i>Megaselia mikejohnsoni, M. creasoni, M. francoae, M. donahuei, M. lombardorum</i>, and <i>M. rodriguezorum</i>.A new paper to be published in the journal Zootaxa (April 6, 2015) describes 30 new insect species in a single genus, Megaselia, of the fly family Phoridae....

Honey bees use multiple genetic pathways to fight infections

These are bees on a hive.Honey bees use different sets of genes, regulated by two distinct mechanisms, to fight off viruses, bacteria and gut parasites, according to researchers at Penn State and the Georgia Institute...

New study shows bacteria can use magnetic particles to create a 'natural battery'

New research shows bacteria can use tiny magnetic particles to effectively create a 'natural battery.' According to work published in journal Science on 27 March, the bacteria can load electrons...

Intergenerational transmission of abuse and neglect more complicated than previously believed

A study led by Cathy Spatz Widom, Distinguished Professor of Psychology at John Jay College, found that offspring of parents with histories of child abuse and neglect are themselves at...

How did the chicken cross the sea?

Michigan State University is solving the mysterious ancestry of the feral chicken population that has overrun the Hawaiian Island of Kauai.It may sound like the makings of a joke, but answering the question of how chickens crossed the sea may soon provide more than just a punch line.

Bariatric surgery before joint replacement can improve outcomes in obese patients

This is Emily Dodwell, MD.Obesity is not only a risk factor for developing knee and hip arthritis. It is also linked to less favorable outcomes after joint replacement surgery. Two new studies at Hospital...

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