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A Closer Look at the Perfect Fluid

By Guest PostJanuary 1, 2015ScienceBerkeley, big bang, density, elementary particles, hira peracha, mps, mps disorders, mucopolysaccharidosis, quark gluon plasma, quarks, ratio, shunji tomatsu, viscosity

Researchers at Berkeley Lab and their collaborators have honed a way to probe the quark-gluon plasma, the kind of matter that dominated the universe immediately after the big bang.

By combining data from two high-energy accelerators, nuclear scientists have refined the measurement of a remarkable property of exotic matter known as quark-gluon plasma. The findings reveal new aspects of the ultra-hot, “perfect fluid” that give clues to the state of the young universe just microseconds after the big bang. (more…)

Meteorite That Doomed Dinosaurs Remade Forests

By Guest PostDecember 18, 2014Scienceandreas schlosser, angiosperms, benjamin blonder, brian enquist, carbon dioxide, christopher jung, conifers, darm giftstoffe, darmflora, dinosaurs, dirk schindler, floodplain, gait related disorders, gefaltetes gift, hell creek formation, jonathan matthis, laurent vallee, meteorite, north dakota, parietal cortex, plant fossils, ratio, spiritual experience, stromverbrauchs in deutschland, that, therapie bakterieller infektionen, variable climate, watch your step, windenergieanlagen

The impact decimated slow-growing evergreens and made way for fast-growing, deciduous plants, UA researchers say, and that provides an explanation for those fall colors.

The meteorite impact that spelled doom for the dinosaurs 66 million years ago decimated the evergreens among the flowering plants to a much greater extent than their deciduous peers, according to a study led by UA researchers. The results are published in the journal PLoS Biology. (more…)

The water in your bottle might be older than the sun

By Guest PostOctober 23, 2014Scienceabsolute zero, alexander peltzer, astronomers, billion years, dresdner frauenkirche, erbgut, Galaxy, genom, george baehr, heavy water, kay nieselt, planet forming disk, ratio, solar system, university of michigan

ANN ARBOR — Up to half of the water on Earth is likely older than the solar system itself, University of Michigan astronomers theorize.

The researchers’ work, published in the current issue of Science, helps to settle a debate about just how far back in galactic history our planet and our solar system’s water formed. Were the molecules in comet ices and terrestrial oceans born with the system itself—in the planet-forming disk of dust and gas that circled the young sun 4.6 billion years ago? Or did the water originate even earlier—in the cold, ancient molecular cloud that spawned the sun and that planet-forming disk? (more…)

Facial Research

By Guest PostFebruary 23, 2013Scienceaggression, any prejudicial beliefs, automatic, b leitner, context, controversial social behaviors, eric hehman, expression of prejudice, facial, facial research, fwhr, greater fwhr, matthew p deegan, predict, racial prejudice, ratio, reporting prejudices, samuel l gaertner, social dominance, structure of face, testosterone related behaviors, university of delaware, width to height

Structure of face may help predict expression of prejudice, researchers report

The structure of a man’s face may indicate his tendency to express racially prejudiced beliefs, according to new research published in Psychological Science, a journal of the Association for Psychological Science.

Studies have shown that facial width-to-height ratio (fWHR) is associated with testosterone-related behaviors, which some researchers have linked with aggression. But psychological scientist Eric Hehman of Dartmouth College and colleagues at the University of Delaware speculated that these behaviors may have more to do with social dominance than outright aggression. Hehman conducted the research while he was a graduate student at UD. (more…)

Saber-toothed Cats and Bear Dogs: How They Made Cohabitation Work

By Guest PostNovember 8, 2012Scienceanalysis, batallones, bear dog, carbon 12, carbon isotope, cat species, catherine badgley, cats, cerro, de, extinct mammals, food web, fossilized fangs, geological pits, habitat, history, late, los, machairodus aphanistus, madrid, mammalian predator, michigan, miocene, miocene period, neutrons, nucleus, palaeontologist, promegantereon ogygia, ratio, saber toothed, soledad domingo, stable, tooth enamel, u m museum, university, woodland area

ANN ARBOR — The fossilized fangs of saber-toothed cats hold clues to how the extinct mammals shared space and food with other large predators 9 million years ago.

Led by the University of Michigan and the Museo Nacional de Ciencias Naturales in Madrid, a team of paleontologists has analyzed the tooth enamel of two species of saber-toothed cats and a bear dog unearthed in geological pits near Madrid. Bear dogs, also extinct, had dog-like teeth and a bear-like body and gait. (more…)

Omega-3 Supplements May Slow a Biological Effect of Aging

By Guest PostOctober 5, 2012Healthaging, alzheimer's disease, american, arthritis, balance, beom seuk hwang, biological process, blood, blood cell, cardiovascular system, cell, coronary, daily intake, dha, diabetes, diet, DNA, docosahexaenoic acid, eicosapentaenoic acid, elissa epel, elizabeth blackburn, epa, f2 isoprostanes, fatty acid, fish oil, free radical, good fat, heart, heart disease, il 6, immune system, inflammation, inflammatory marker, interleukin 6, jan kiecolt glaser, jue lin, martha belury, ohio state, oil, omega 6, omega-3, oxidative stress, placebo group, polyunsaturated fatty acid, ratio, rebecca andridge, reduce, ron glaser, segment, supplement, telomeres, type 2, white, william malarkey

COLUMBUS, Ohio – Taking enough omega-3 fatty acid supplements to change the balance of oils in the diet could slow a key biological process linked to aging, new research suggests.

The study showed that most overweight but healthy middle-aged and older adults who took omega-3 supplements for four months altered a ratio of their fatty acid consumption in a way that helped preserve tiny segments of DNA in their white blood cells. (more…)

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