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Wie man Atome bündelt

By Guest PostNovember 16, 2014Scienceashish kapoor, atome, biophysikalische chemie, coenzym nad, energie, julie irwin, kristine ehrich, max planck institut, mpi, rebecca reczek, sanionia uncinata, ursprung von planetenatmosphaeren, walk upright

Wenn Wissenschaftler chemische Reaktionen untersuchen, ist die Verbesserung der zeitlichen Auflösung eine ständige Herausforderung. Besonders Reaktionen, die sich nicht durch Licht auslösen lassen, sind auf kurzen Zeitskalen schwierig zu verfolgen. Ein Team von Forschern um Alec Wodtke am Max-Planck-Institut (MPI) für biophysikalische Chemie und an der Universität Göttingen hat jetzt ultrakurze Pulse von Atomen erzeugt. Die sogenannte bunch-compression-photolysis-Methode könnte helfen, zeitlich hochaufgelöste Experimente durchzuführen, bei denen atomare Kollisionen den Anfang bilden. (Nature Communications, 5. November 2014) (more…)

Why ‘I’m so happy I could cry’ makes sense

By Guest PostNovember 16, 2014Health, Sciencearvind murugan, geschaedigte nervenzellen, happy, matthew pinson, menachem stern, michela deleidi, ways to fold, yale psychologist

The phrase “tears of joy” never made much sense to Yale psychologist Oriana Aragon. But after conducting a series of studies of such seemingly incongruous expressions, she now understands better why people cry when they are happy.

“People may be restoring emotional equilibrium with these expressions,” said Aragon, lead author of work to be published in the journal Psychological Science. “They seem to take place when people are overwhelmed with strong positive emotions, and people who do this seem to recover better from those strong emotions.” (more…)

Skin Care Tips to Look Attractive In Winter

By Guest PostNovember 15, 2014Healthadrugrehab, concealing addiction, dehydration, fold under pressure, heart stents, origami, rehab clinics, satellite solar panels, self assembling structure, sleep, struggles with addiction, water

A person’s psyche and skin may rebel against seasonal changes, the skin thus needs to be nurtured to give it the healthy characteristics to boost one’s psyche. A change in the skin care routine is thus necessary during winter to prevent drying up and flaking of the skin. To look attractive in the winter the following skin care tips should be practiced:

Use of good moisturizers

Heavier, richer moisturizers help prevent environmental conditions and prevent moisture loss in over-heated rooms. Moisturizers with lanolin oils restores the skin’s natural protective layer and moisture balance to keep the skin soft. Products with alpha hydroxyl acids should be substituted with products enriched with natural cocoa butter and vitamin E which provides deep and long-lasting moisture and smoothies away dullness. (more…)

Sexualized Body Image Has Negative Effect on Young Adolescent Girls

By Guest PostNovember 15, 2014Scienceaustin, demokratie, ivan martin, knochenmark, maria bertel, negative effect, safety in texas, university of texas, vfgh, vfgh erkenntnisse, wesen der demokratie

AUSTIN, Texas — Middle-school girls who value sex appeal differ from their peers in troubling ways, according to new research from The University of Texas at Austin. (more…)

Eiszeitliches Klima: Parallelen zwischen Grönland und Mitteleuropa

By Guest PostNovember 15, 2014Environmentasset development program, deutschland, geologie, groenland, knochenbildung, knochengewebe, mitteleuropa, moe momayez, nanokristalle, oesterreich, phoenix semiconductor, protein kollagen, tadpole brains, ueberdosis calcium

Untersuchungen an Stalagmiten aus einer Höhle im Grenzgebiet zwischen Deutschland und Österreich liefern neue, präzise Daten über das Klima in Mitteleuropa für den Zeitraum vor 30.000 bis 60.000 Jahren. Ein Team um Dr. Gina Moseley vom Institut für Geologie konnte erstmals zeigen, dass sich klimatische Veränderungen mit ähnlich hoher Geschwindigkeit wie in Grönland vollzogen. (more…)

Ancient shellfish remains rewrite 10,000-year history of El Niño cycles

By Guest PostNovember 14, 2014Scienceamerican literary history, earth, elena schroeter, history, miner locations, mining sensor network, mollusk shells, native american linguistic, new antibiotic chemotypes, peru, sarah rivett, sophie gee, tartup guia, the global enlightenment, tropical pacific ocean, university of washington, unscripted america

The planet’s largest and most powerful driver of climate changes from one year to the next, the El Niño Southern Oscillation in the tropical Pacific Ocean, was widely thought to have been weaker in ancient times because of a different configuration of the Earth’s orbit. But scientists analyzing 25-foot piles of ancient shells have found that the El Niños 10,000 years ago were as strong and frequent as the ones we experience today. (more…)

In one of nature’s innovations, a single cell smashes and rebuilds its own genome

By Guest PostNovember 14, 2014Sciencealexander popp, benjamin leon bodirsky, DNA, existing antibiotic treatment, ilje pikaar, isabelle weindl, onions, princeton university, proteinreiche mikroben, sanjib bhakta, single cell, single celled organism, single molecules, Technology, therapeutic index

Life can be so intricate and novel that even a single cell can pack a few surprises, according to a study led by Princeton University researchers.

The pond-dwelling, single-celled organism Oxytricha trifallax has the remarkable ability to break its own DNA into nearly a quarter-million pieces and rapidly reassemble those pieces when it’s time to mate, the researchers report in the journal Cell. The organism internally stores its genome as thousands of scrambled, encrypted gene pieces. Upon mating with another of its kind, the organism rummages through these jumbled genes and DNA segments to piece together more than 225,000 tiny strands of DNA. This all happens in about 60 hours. (more…)

Positive Bilanz nach UN-Konferenz in Quito

By Guest PostNovember 14, 2014Environmentana granados, astronautennahrung, bonner konvention, claudia paladini, cms, diclofenac, hormontherapie, kuehe, lars lachmann, nabu, naturschutz, olaf tschimpke, schutz wandernder tierarten

Bonner Konvention empfiehlt Verbot von Bleimunition und Diclofenac

Am vergangenen Sonntag ging in der ecuadorianischen Hauptstadt Quito die 11. Vertragsstaatenkonferenz der UN-Konvention zum Schutz wandernder Tierarten (CMS) , nach dem Ort ihrer Unterzeichnung auch Bonner Konvention genannt, zu Ende. Der NABU zieht eine positive Bilanz: „Die Vertragsstaaten haben eine Reihe wegweisender Beschlüsse verabschiedet, die insbesondere unseren stark bedrohten Zugvögeln zugutekommen“, resümierte NABU-Präsident Olaf Tschimpke. (more…)

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