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Yale Discovery of ‘Young’ Supermassive Black Holes Challenges Current Theory

By Guest PostDecember 9, 2011Scienceastronomers, big bang, black hole, brooke simmons, Chile, current theory, data, earth time, eilat glikman, ezequiel treister, fast growing, Galaxy, host galaxies, Hubble Space Telescope, kevin schawinski, mass range, Milky Way, priyamvada natarajan, supermassive black holes, universidad de concepcion, yale discovery, yale university

Astronomers at Yale University have discovered what appear to be three fast-growing supermassive black holes in a relatively young, still-forming galaxy.

The discovery raises the possibility that this type of black hole continues to form billions of years after the Big Bang, challenging current theory. Astronomers previously thought all supermassive black holes emerged soon after the birth of the universe 13.7 billion years ago. (more…)

Yale-led Team Finds CO2 Levels Plunged as Antarctica Froze

By Guest PostDecember 3, 2011Environmentalgae, atmosphere, carbon dioxide levels, climate transition, co2 and climate change, critical condition, cryosphere, earth, eocene epoch, eocene to oligocene, freezing of antarctica, fundamental link, geochemist, global climate change, global cooling, greenhouse gases, ice sheets, icing of antarctica, mark pagani, matthew huber, molecules, oligocene, polar ice caps, robert m deconto, sea level, temperatures, yale university, zhonghui liu

A Yale University-led research team has found evidence that carbon dioxide levels in Earth’s atmosphere plunged prior to and during the initial icing of Antarctica, about 34 million years ago. The new findings provide further evidence of atmospheric carbon dioxide’s role as a major trigger of global climate change.

“CO2 is tracking global cooling at that time,” said Yale geochemist Mark Pagani, lead author of a paper published online Dec. 1 in the journal Science. “It’s important to demonstrate that there are obvious linkages between CO2 and climate change. It’s one more piece of evidence that CO2 is a primary lever on climate.” (more…)

Watching the Nervous System Being Wired in Real Time

By Guest PostDecember 2, 2011Sciencebill hathaway, daniel colon ramos, imaging technology, living organism, migration of cells, nervous system, neurodevelopmental atlas, new diseases, single cell, worm, yale, yale cell biologist, yale university

Thanks to a new imaging technology developed at Yale, the National Institutes of Health and Sloan-Kettering, scientists can now see for the first time the development of a living organism at the level of a single cell.

One of the developers, Yale cell biologist Daniel Colon-Ramos, illustrates the power of the new technology in this video that shows the migration of cells that will form the nervous system in a developing worm. (more…)

Len Peters: Preparing for the Technological Future

By Guest PostNovember 21, 2011Technologychief information security officer (ciso), columbia business school, customer satisfaction, digital assets, fantastic technology service, information technology services (its), infrastructure’s strategy, ipads, len peters, preparing for the technological future, rich mikelinich, susan gonzalez, town hall meeting, transformative technological change, university broadens, yale university, yalenews

In a recent Town Hall meeting with staff in Information Technology Services (ITS) and IT partners from across campus, Yale’s Chief Information Officer Len Peters pointed out some of the technological changes that have taken place in the past 10 years — listing facts that might make some of today’s students think he was talking about an ancient world.

Just a decade ago, he noted, text messaging and smart phones weren’t being used on campuses (although nearly 70% of students had cell phones), and less than 30% of students had some form of wireless computer setup. (more…)

Yale Engineers Invent Novel Way to Sort Microparticles – By Size

By Guest PostNovember 18, 2011Scienceayse rezzan kose, complex fluids based on size, concentrating synthetic microscopic, diagnostic, eric gershon, ferro-microfluidic cytometer, high-throughput cytometers, highly efficient technique for separating, hur koser, isolating rare liquid-borne pathogens, magnetic nanoparticles, microparticles into separate, monitoring tumor cells in bloodstreams, next-generation nanocytometer, pharmaceutical applications, rapidly assessing blood cell counts, rapidly isolate, rare bacteria for environmental testing, significant clinical, sorting, yale university

Engineers at Yale University have developed a new, highly efficient technique for separating, sorting, and concentrating synthetic microscopic particles within complex fluids based on size.

The new technique suggests the possibility of significant clinical, diagnostic, and pharmaceutical applications, such as isolating rare liquid-borne pathogens, monitoring tumor cells in bloodstreams, and rapidly assessing blood cell counts, for example. (more…)

Battle between the Placenta and Uterus could Help Explain Preeclampsia

By Guest PostOctober 12, 2011Sciencebaby’s placenta, brews in the mother’s womb, cure for preeclampsia, disease of pregnancy, dr. harvey j. kliman, father’s biological goal, lymphocytes, mother during pregnancy, mother’s uterus, online issue of reproductive sciences, preeclampsia, protein 13, trophoblasts, yale school of medicine, yale university

A battle that brews in the mother’s womb between the father’s biological goal to produce the biggest, healthiest baby possible vs. the mother’s need to live through delivery might help explain preeclampsia, an often deadly disease of pregnancy. The fetus must be big enough to thrive, yet small enough to pass through the birth canal. In a new study, Yale researchers describe the mechanism that keeps these conflicting goals in balance. (more…)

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‘Back-up system’ Reduces Heart Disease Deaths

By Guest PostOctober 3, 2011Health, Scienceback up system, blood vessels, bypass vessels, christian seiler, clotted coronary artery, coronary artery disease, coronary collaterals, counterpulsation, g csf, growth factor, heart disease, heart main arteries, pascal meier, patients with a heart attack, role of natural bypass vessels, university of bern, yale university

Small bypass vessels which act as a ‘back-up system’ for the heart’s main arteries play a significant role in reducing the mortality of patients with coronary artery disease, according to new research. (more…)

Primitive Birds Shared Dinosaurs’ Fate

By Guest PostSeptember 25, 2011Sciencearchaic birds, bird fossils, chicxulub meteorite, cretaceous bird, cretaceous period, dinosaurs 65 million years ago, fossil birds, nicholas longrich, team of paleontologists, yale university

A new study puts an end to the longstanding debate about how archaic birds went extinct, suggesting they were virtually wiped out by the same meteorite impact that put an end to dinosaurs 65 million years ago.

For decades, scientists have debated whether birds from the Cretaceous period — which are very different from today’s modern bird species — died out slowly or were killed suddenly by the Chicxulub meteorite. The uncertainty was due in part to the fact that very few fossil birds from the end of this era have been discovered. (more…)

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