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Mosquitofish Genital Shape Linked to Presence of Predators

By Guest PostOctober 29, 2013Scienceblue holes, evolutionary changes, gambusia hubbsi, gambusia predators, justa heinen kay, male bahamas mosquitofish, male genital shape, mosquitofish genital shape, north Carolina, presence of predators, sperm transferring organ, state university, threat of predation

When predators lurk nearby, male Bahamas mosquitofish (Gambusia hubbsi) change mating strategies, rejecting elaborate courting rituals for more frequent and sometimes forceful encounters with females.

But as a recent North Carolina State University study shows, mating strategies aren’t the only things changing for G. hubbsi when predators abound. The shape and size of the male fish’s genitalia are also linked to the presence or absence of predators. (more…)

Creating fuel from sunlight

By Guest PostOctober 29, 2013Environment, Sciencecarbon dioxide byproduct, CO2, components of syngas, creating fuel, energy mix, fossil fuel, from, jane davidson, liquid hydrocarbon fuel, methane, natural, next generation, solar power, solar simulator, sunlight, syngas, synthetic gas, tom chase, university of minnesota

Turning fossil fuel into energy is easy: You just burn it. And live with the carbon dioxide byproduct. What if we could reverse the process and turn water and carbon dioxide back into fuel?

A dream solution, but it may seem like trying to put the genie back in the bottle. (more…)

Grandson of first chemotherapy doctor now teaches at Yale School of Medicine

By Guest PostOctober 28, 2013Healthchemical weapons, first chemotherapy doctor, guided treatments, gustaf lindskog, lymphocidal chemical, nitrogen mustard, thoracic surgeon

When Dr. Dieter Lindskog first began walking the halls of Yale School of Medicine a decade ago, people would stop him often to ask, “Are you by any chance related to …?” Now they stop him rarely, either because they know the answer or are too young to recognize the famous name — that of the grandfather who upended accepted tenets of medical practice and, in doing so, gave birth to the science and art of modern oncology. (more…)

Quelle der Artenvielfalt

By Guest PostOctober 28, 2013Natureblauen nils, horn von afrika, hotspot der biodiversitaet, nabu, natur, quelle der artenvielfalt, singvoegel, tanasee in aethiopien, unesco biosphaeren reservat, wasser, wasserfall

Jetzt spenden für den Tanasee in Äthiopien

Am Horn von Afrika liegt ein Land, ohne das unser Leben anders aussähe. Es wäre weniger genussreich und vielleicht sogar voller Entbehrungen. In Äthiopien wuchsen die ersten Kaffeepflanzen der Erde. Auch wichtige Getreidesorten entstammen wohl diesen Breiten. Biologen sprechen von einem Hotspot der Biodiversität.

Auch für unsere Vogelwelt ist diese Region unersetzlich. Am größten See Äthiopiens, dem Tanasee, überwintern viele unserer Kraniche, Rauchschwalben, Schafstelzen und weitere Wasser- und Singvögel. 15 Fischarten kommen nur in diesem See und nirgendwo sonst auf der Welt vor. Und 160 Baumarten wachsen nur hier! (more…)

Habitat research methods give a new peek at tiger life with conservation

By Guest PostOctober 28, 2013Naturebhim gurung, biodiversity, China, chitwan national park, conservation, habitat research, himalayan lowlands, human population, jianguo jack liu, michigan state university, neil carter, nepal, nepal tiger trust, panda, protected area, sustainability, systems integration, tiger habitat, tiger life

Twelve years ago, a team led by Jianguo “Jack” Liu at Michigan State University showed that China needed to revisit how it was protecting its pandas. Now research on tiger habitat in Nepal, published in Ecosphere journal of the Ecological Society of America, again shows that conservation demands not only good policy, but also monitoring even years down the road.

“Understanding long-term outcomes of conservation programs is crucial and requires innovative methods,” Liu said. “Now we’re learning that Nepal’s outstanding efforts to protect tigers are best supported with close monitoring because conservation situations are so dynamic. In both cases, the key is to understand how the people who live near the valued wildlife are faring as well.” (more…)

The 2014 Solar Decathlon Europe: Brown/RISD/Erfurt team designs Techstyle Haus

By Guest PostOctober 27, 2013Technologysolar decathlon, solar house, solar powered village, techstyle haus

Students at Brown, RISD, and the University of Erfurt are tackling a great challenge: Build a house that uses 90 percent less energy than a typical house, make it liveable, flexible, durable, and lightweight enough to be shipped from Providence to France — and design it better than 19 other top teams from around the world. That’s the Solar Decathlon. The Brown-RISD-Erfurt team calls its entry the “Techstyle Haus.” (more…)

Fact checking politicians gets results

By Guest PostOctober 26, 2013Politicsamerican politicians, democratic accountability, fact checkers, fact checking politicians

New research indicates that American politicians are affected by the practice of fact-checking, thereby reducing the risk of misinformation and strengthening democratic accountability. (more…)

Ghostly Specter Haunts the ‘Coldest Place in the Universe’

By Guest PostOctober 26, 2013Sciencealma, alma data, atacama large millimeter, big bang, boomerang nebula, coldest place, constellation centaurus, dwarf stars, ghost like appearance, ghostly specter haunts, lars ake nyman, NASA, patrick huggins, planetary nebula, raghvendra sahai, submillimeter array, telescope in chile, ultra cold object, universe, visible wavelengths, wouter vlemmings

At a cosmologically crisp one degree Kelvin (minus 458 degrees Fahrenheit), the Boomerang nebula is the coldest known object in the universe — colder, in fact, than the faint afterglow of the Big Bang, the explosive event that created the cosmos.

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) telescope in Chile have taken a new look at this object to learn more about its frigid properties and to determine its true shape, which has an eerily ghost-like appearance. (more…)

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