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New mayor reflects on ‘exciting and innovative’ New Haven

By Guest PostJanuary 9, 2014Politicsalaina pritchard, america, assa abloy, coliseum, economic development corporation, economically dynamic place, elm haven, ethnic heritage center, Europe, first planned city, m env d, mayor, new haven, new mayor, nhpd, route 34, state capitol, toni nathaniel harp, waterbury, yalenews

Toni Nathaniel Harp ’78 M.Env.D., first came to New Haven — a place known as America’s first planned city — in 1976, to study environmental and physical planning at the Yale School of Architecture. She remained in the city after graduation, making a career in community services and serving as a New Haven alderman and Connecticut state senator.

She won election to the ultimate New Haven planning job — mayor — on Nov. 5, 2013, and was sworn in as the city’s 50^th mayor on Jan. 1, becoming the first woman to be the city’s chief executive and the first Yale graduate in the mayor’s office in 33 years. (more…)

New Study Reveals the Biomechanics of How Marine Snail Larvae Swim

By Guest PostDecember 24, 2013Environment, Natureatlantic slipper limpet, biomechanics, cilia, crepidula fornicate, dianna padilla, epifluorescent microscopy image, Europe, evolution collected, houshuo jiang, karen chan, larvae, marine ecosystem, marine snail larvae, microorganisms freely swimming, microscopic video, nuisance, oceanographic institution, stony brook university, swim, vessel of seawater, video, whoi, woods hole

Equipped with high-speed, high-resolution video, scientists have discovered important new information on how marine snail larvae swim, a key behavior that determines individual dispersal and ultimately, survival.

Researchers from the Woods Hole Oceanographic Institution (WHOI) and Stony Brook University grew Atlantic slipper limpet larvae, which are slightly larger than a grain of sand, and recorded microscopic video of them swimming. In previous studies, it has been commonly thought that larvae swim faster when they beat their hair-like cilia faster. However, this new microscopic video and research shows that this is not the case. (more…)

‘Tiger stripes’ underneath Antarctic glaciers slow the flow

By Guest PostNovember 30, 2013Environmentantarctic glaciers, antarctic ice, bed of rock, british antarctic survey, climate change, douglas macayeal, Europe, flow of glaciers, friction zones, massive antarctic glaciers, mathematical modeling, North America, olga sergienko, pattern, pine island glacier, princeton university, richard hindmarsh, satellite measurements, sea-level rise, sediment, thwaites glacier, tiger stripes, university of chicago, warming climate, west antarctica

Narrow stripes of dirt and rock beneath massive Antarctic glaciers create friction zones that slow the flow of ice toward the sea, researchers at Princeton University and the British Antarctic Survey have found. Understanding how these high-friction regions form and subside could help researchers understand how the flow of these glaciers responds to a warming climate.

Just as no-slip strips on flooring prevent people from slipping on a wet floor, these ribs or “tiger stripes” — named in reference to Princeton’s tiger mascot — provide friction that hinders the glaciers from slipping along the underlying bed of rock and sediment, the researchers report online in the journal Science. (more…)

Dogs likely originated in Europe more than 18,000 years ago, UCLA biologists report

By Guest PostNovember 16, 2013Nature, Scienceancient dog fossil, ancient hunter, carnivore, co evolutionary process, coyotes, daniel greenfield, dog, dog like animals, dogs from europe, domestic dogs, druid peak, east asia, Europe, european hunter, european wolves, evolutionary biology, finland, fossil, genetic analysis, genetic data, illinois, klaus koepfli, koster archaeological site, late pleistocene, middle east, middle east origin, migration, mitochondrial dna, modern dogs, North America, olaf thalmann, old world, origin, proximity to humans, robert wayne, species, two wolves, ucla biologist, university of turku, western russia, wolf like animals, yellowstone national park

Wolves likely were domesticated by European hunter–gatherers more than 18,000 years ago and gradually evolved into dogs that became household pets, UCLA life scientists report.

“We found that instead of recent wolves being closest to domestic dogs, ancient European wolves were directly related to them,” said Robert Wayne, a professor of ecology and evolutionary biology in UCLA’s College of Letters and Science and senior author of the research. “This brings the genetic record into agreement with the archaeological record. Europe is where the oldest dogs are found.” (more…)

Tropical forest carbon absorption may hinge on an odd couple

By Guest PostOctober 7, 2013Environmentabsorb, atmosphere, carbo loading bacteria, carbon absorption, carbon dioxide, carbon sink, component of biodiversity, david medvigy, dylan craven, Europe, excess nitrogen, human activities, infectious bacteria, jefferson hall, journal nature, lars hedin, legume family, michiel van breugel, models, nitrogen, nitrogen fixation, nitrogen fixing trees, non legume trees, North America, photosynthesis, princeton university, rhizobia, root nodules, sarah batterman, stri, tropical forest, united states

A unique housing arrangement between a specific group of tree species and a carbo-loading bacteria may determine how well tropical forests can absorb carbon dioxide from the atmosphere, according to a Princeton University-based study. The findings suggest that the role of tropical forests in offsetting the atmospheric buildup of carbon from fossil fuels depends on tree diversity, particularly in forests recovering from exploitation.

Tropical forests thrive on natural nitrogen fertilizer pumped into the soil by trees in the legume family, a diverse group that includes beans and peas, the researchers report in the journal Nature. The researchers studied second-growth forests in Panama that had been used for agriculture five to 300 years ago. The presence of legume trees ensured rapid forest growth in the first 12 years of recovery and thus a substantial carbon “sink,” or carbon-storage capacity. Tracts of land that were pasture only 12 years before had already accumulated as much as 40 percent of the carbon found in fully mature forests. Legumes contributed more than half of the nitrogen needed to make that happen, the researchers reported. (more…)

Maths predicts rise and fall of empires

By Guest PostOctober 5, 2013General, Scienceafrica, americas, ancient empires, asia, cavalry, chariots, computer model, empires, Europe, evolution, evolutionary driver, fall, grid cell, human history, math, mathematical model, mathematical simulation, military innovation, old world, predict, predict the future, quantitative accuracy, rise, sergey gavrilets, simulate warfare, socio cultural evolution, tom currie, university of connecticut, university of exeter

Researchers have developed a new mathematical model that accurately describes the evolution of ancient empires.

The computer model can predict with 65% accuracy where and when the largest complex societies arose in human history.

The research, which suggests that intense warfare is the evolutionary driver of large complex societies, is published in the journal Proceedings of the National Academy of Sciences (PNAS). It was carried out by researchers from the University of Exeter in collaboration with University of Connecticut and the National Institute for Mathematical and Biological Synthesis (NIMBioS) in the US. (more…)

Surveying Ice and Fire: The First Map of All of Iceland’s Glaciers and Subglacier Volcanic Calderas Released

By Guest PostSeptember 26, 2013Environmentdanish geodetic survey, Europe, eyjafjallajökull, glacier, glacier outburst flood, glaciers of iceland, Iceland, icelandic meteorological office, imo, landsat, largest ice cap, little ice age, map, oddur sigurosson, spot, usgs, vatnajokull, volcanic calderas, volcano glaciological hazard

For the first time, all of Iceland’s glaciers are shown on a single map, produced by the Icelandic Meteorological Office (IMO), in collaboration with the U. S. Geological Survey (USGS) and Iceland Geosurvey. The map is the first to incorporate historical data and coverage from aerial photographs and remote sensing satellites, such as Landsat and SPOT, to show the change in the areal extent of glaciers during the past century.

Iceland has about 300 glaciers throughout the country, and altogether, 269 glaciers, outlet glaciers and internal ice caps are named. The glaciers that lack names are small and largely newly revealed, exposed by melting of snow pack due to warmer summer temperatures. The number of identified glaciers has nearly doubled at the beginning of the 21^st century. (more…)

IBM Commits $1 Billion to Fuel Linux and Open Source Innovation on Power Systems

By Guest PostSeptember 17, 2013Technologyaustin, big data, brad mccredie, cloud, ecosystem skills, Europe, fuel linux, ibm, ibm power7, jeopardy game, linuxcon conference, new orleans, new york, open source innovation, power systems, prototype, texas, watson

NEW ORLEANS, LA – 17 Sep 2013: At LinuxCon 2013 today, IBM announced plans to invest $1 billion (USD) in new Linux and open source technologies for IBM’s Power Systems servers. The investment aims to help clients capitalize on big data and cloud computing with modern systems built to handle the new wave of applications coming to the data center in the post-PC era.

Two immediate initiatives announced, a new client center in Europe and a Linux on Power development cloud, focus on rapidly expanding IBM’s growing ecosystem supporting Linux on Power Systems which today represents thousands of independent software vendor and open source applications worldwide. Specific details of both initiatives include: (more…)

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