Polar in Biological News

Early initiation of Arctic sea-ice formation

... Naln Ko of the University of Troms and Norwegian polar Insitute (Troms) analysed oceanic sediment cores ... propose that, like Synedropsis species found in polar regions today, the ACEX species were also sea-ice ... uniquely adapted for surviving the lengthy polar darkness and freezing temperatures. "These ...

Down Under dinosaur burrow discovery provides climate change clues

... Cretaceous Period, when some dinosaurs lived in polar environments. "This research helps us to better ... have yielded the best-documented assemblage of polar dinosaur bones in the world. During a hike to ... Antarctica, and dinosaurs roamed in prolonged polar darkness along forested southern Australia river ...

New, less invasive genetic test greatly improves pregnancy rates in older women with poor prognosis

... used to examine the fertilised eggs by looking at polar bodies, tiny cells that are a by-product of egg development. The chromosomes of polar bodies provide an indication of whether the corresponding egg is normal or abnormal; if the polar bodies have the wrong number of chromosomes, so ...

ESHRE launches international study of polar body screening

... to find out if a novel method of doing PGS using polar body biopsy and chromosome array analysis offers ... of PGS in one of each pair of 23 chromosomes in polar bodies, tiny cells that are a by-product of egg ... status of an oocyte in at least 90% of polar body biopsy attempts." The two centres chosen ...

New tracking approach will help protect polar bears

... Kingston, ON A new approach to tracking polar bears, developed by Queen's University ... allow us to annually survey all of the country's polar bears, non-intrusively, with Inuit involvement, ... approach to create a clearer picture of the polar bear population. First, a number of "hair traps" ...

SRI International announces findings from new upper atmospheric radar system for scientific research

... Image Measurements of Noctilucent Clouds and polar Mesospheric Summer Echoes," by Michael Taylor, ... AMISR also supported the International polar Year (IPY), an international research program focusing on the polar regions of the world. Jan Sojka, Ph.D., professor ...

Slicing chromosomes leads to new insights into cell division

... guiding chromosome movements. In this capacity, polar ejection forces would play a central role ... one had established a direct link until now. polar ejection forces are thought to arise out of the ... as chromosomes. Hunt's group hypothesized that polar ejection forces should be proportional to the ...

Plant Min protein sits tight and rescues E. coli

... protein (AtMinD) localizes in E. coli cells' polar regions keeping cell division at its correct ... Exactly why and how the AtMinD localizes to the polar region in E. coli cells is unknown, but one ... this bacterium, MinCD proteins are localized to polar regions without oscillation and there is no MinE. ...

Genome projects launched for three extreme-environment animals

... The three selected genomes are those of two polar animals: the polar bear and emperor penguin, and one altiplano ... and extreme environmental-adaptation. The polar bear is the world's largest land carnivore and is ...

Satellite snow maps help reindeer herders adapt to a changing Arctic

... and navigate. To help them adapt, the ESA-backed polar View initiative is providing them with ... foraging. For this reason, ICR partnered with polar View to examine how satellite observations could ... for such vast circumpolar regions. Under the polar View initiative, Kongsberg Satellite Services ...

Research plane Polar 5 on Arctic campaign

... March 24th 2009. The research aircraft polar 5 belongs to the Alfred Wegener Institute. It ... Institute. The operation of the research aircraft polar 5 will allow for the first time to carry out ... sea ice team of the Alfred Wegener Institute for polar and Marine Research in the Helmholtz Association ...

AGU journal highlights -- March 12, 2009

... explain Venusian vortices Model relates South polar ozone concentrations and wind patterns ... 3. Model relates South polar ozone concentrations and wind patterns The ... Observations and models have linked stratospheric polar ozone depletion with trends in the SAM. However, ...

Polar research reveals new evidence of global environmental change

... observations during the alternate seasons in both polar regions. A joint project of WMO and ICSU, IPY ... over the two-year period. "The International polar Year 2007 2008 came at a crossroads for the ... of WMO. "The new evidence resulting from polar research will strengthen the scientific basis on ...

February 2009 Geology and GSA Today media highlights

... brle." Is there an orbital signal in the polar layered deposits on Mars? J. Taylor Perron and ... their study, Perron and Huybers ask whether the polar ice caps on Mars contain a similar record of orbital changes. The martian polar caps contain hundreds of meters of layers ...

AGU journal highlights -- Dec. 31, 2008

... dioxide frost and dust cascading down a steep polar scarp near the north pole in discrete clouds. ... for these cascades in the context of the Martian polar spring environment and of the active, wind-driven ... also indirectly influence the retreat rate of the polar scarp in various ways. Title: Seasonally ...

UAF researchers to present at AGU press briefing

... in Flux: New Insights from the International polar Year, Tuesday, Dec. 16 at 9 a.m. Pacific Standard ... of studies conducted during the International polar Year, an international event focusing research efforts and public attention on the Earth's polar regions. Semiletov will speak on recent ...

Goose eggs may help polar bears weather climate change

... As polar bears adapt to a warming Arctica frozen seascape ... western Hudson Bay could provide at least some polar bears with an alternative source of food. This new analysis appears in polar Biology . "Over 40 years, six subadult male ...

ESA satellites focusing on the Arctic

... In situ research is difficult to carry out in polar Regions because of the remoteness and harshness ... about half of its radar instrument resources to polar area acquisitions. In 2007, ASAR data showed ... European and Canadian radar sensors. The polar View initiative, established by European and ...

FSU Historian's Arctic research has him sitting on top of the world

... from the National Science Foundation's Office of polar Programs. "There have been a lot of histories ... that one of the first in-depth discussions of polar warming occurred in the Pentagon -- it was ... When the United States got very interested in the polar regions during the Cold War, what was being ...

Study of polar dinosaur migration questions whether dinosaurs were truly the first great migrators

... EdmontonContrary to popular belief, polar dinosaurs may not have traveled nearly as far as ... According to Bell, the notion of migrating polar dinosaurs is not new; however, previously-held ... view of migration is feasible for some species of polar dinosaurs, it does not hold for all, Bell noted. ...

AGU journal highlights -- Oct. 16, 2008

... Haas: Alfred Wegener Institute for polar and Marine Research, Bremerhaven, Germany; now at ... Andreas Pfaffling: Alfred Wegener Institute for polar and Marine Research, Bremerhaven, Germany; now at ... Lasse Rabenstein: Alfred Wegener Institute for polar and Marine Research, Bremerhaven, Germany; ...

October 2008 GEOLOGY and GSA TODAY media highlights

... collapse J.A. Dowdeswell et al., Scott polar Research Institute, University of Cambridge, ... The rate of deglacial ice-sheet retreat across polar continental shelves, and possible ice-stream ... of seafloor morphology is available for many polar shelves and fjords. Dowdeswell et al. infer the ...

Experts meet on need for new rules to govern world's fragile polar regions

... and research activities in both of Earth's polar regions is urgently needed to reflect new ... conference marking the International polar Year. Due to climate change, the ancient ice ... "many experts believe this new rush to the polar regions is not manageable within existing ...

Arctic ice on the verge of another all-time low

... Envisat satellite suggest that the extent of polar sea-ice may again shrink to a level very close to ... Regarding the use of satellite data for polar research Miller continues, "The polar regions, especially the Arctic, are very ...

Successful series of measurements in Arctic sea ice

... N, Polarstern of the Alfred Wegener Institute for polar and Marine Research in the Helmholtz Association ... important region for the exchange of Atlantic and polar water masses. Here, warm and more saline Atlantic ... Return of Pacific waters near Greenland? The polar water near Greenland, which flows south along the ...

Dartmouth awarded NSF grant for new polar sciences, engineering grad program

... of an interdisciplinary doctoral program in the polar sciences and engineering with a focus on rapid ... educating and nurturing the next generation of polar and climate change researchers." What sets this grant apart is its focus not just on polar sciences, but on the political and human aspects ...

AGU journal highlights -- July 23, 2008

... spewing a sulfur dioxide cloud into the north polar stratosphere that reached roughly 15 kilometers ... impacts of Icelandic volcanic eruptions on the polar atmosphere and Arctic ozone loss. ... of general circulation in the midlatitude and polar stratosphere and mesosphere. Title: General ...

Wilkins Ice Shelf hanging by its last thread

... part of their contribution to the International polar Year (IPY) 2007-2008, a large worldwide science ... Satellite data are essential for observing polar regions. Envisat's ASAR instrument is able to ... "ESA is committed to continue monitoring the polar areas with Envisat and in the future with the ...

Even the Antarctic winter cannot protect Wilkins Ice Shelf

... part of their contribution to the International polar Year (IPY) 2007-2008, a large worldwide science ... a large IPY project the Global Interagency IPY polar Snapshot Year (GIIPSY) with the Byrd polar Research Centre. The goal of GIIPSY is to make ...

MBL awards journalism fellowships

... science and research techniques. The polar course gives journalists the unparalled ... & Engineering News Emily Stone, Freelance polar Fellows Alan Burdick*, Author & Freelance ... Journalists selected for the MBL's new polar Fellowship, created in conjunction with the ...

Federal polar bear research critically flawed, says study in INFORMS journal

... to determine if global warming threatens the polar bear population is so flawed that it cannot be used to justify listing the polar bear as an endangered species, according to a ... Interior Department to decide by May 15 whether polar bears should be listed under the provisions of ...

Arctic marine mammals on thin ice

... due to climate change could spell disaster for polar bears and other Arctic marine mammals. The April ... of threats to marine mammals. For some, such as polar bears, it is likely to reduce the availability of ... techniques. Species such as the walrus and polar bear fall under this category, while the beluga ...

Vanishing polar ice talk to be Webcast live, April 10

... change, will present Dramatic Changes in Earth's polar Ice: Are We Waking Sleeping Giants? at 7:30 p.m., ... in UD's William S. Carlson International polar Year Events--a year-long series of lectures, ... public awareness of the importance of the world's polar regions. ...

NOAA aircraft to probe arctic pollution

... tiny airborne particles that are polluting the polar region, forming an Arctic Haze every winter and ... suspect these pollutants are speeding up the polar melt. Called ARCPAC (Aerosol, Radiation, and ... project is a NOAA contribution to International polar Year 2008. The experiment will be coordinated ...

NASA expert to address Earth's vanishing polar ice, April 10, at UD

... change, will present Dramatic Changes in Earth's polar Ice: Are We Waking Sleeping Giants? at 7:30 p.m. ... in UD's William S. Carlson International polar Year Events--a year-long series of lectures, ... public awareness of the importance of the world's polar regions. Carlson, UD's president from 1946-50, ...

AGU Journal Highlights -- March 19, 2008

... and Bjrn Rost: Alfred Wegener Institute for polar and Marine Research, Bremerhaven, Germany; ... light emissions in Jupiters northern and southern polar regions facing Io. Scientists term these aurorae ... torus, this leading spot is seen in the northern polar regions, and vice versa. The authors hypothesize ...

Arctic climate models playing key role in polar bear decision

... federal decision about whether to protect the polar bear as a threatened species is as much about ... is currently considering a proposal to list the polar bear as a threatened species under the Endangered ... the physical climatologist on the International polar Bear Science Team and a professor of atmospheric ...

Half time in the International Polar Year 2007-2008

... of the first expeditions during the International polar Year 2007/08. From March 10 14, 2008 the most ... in Mnster in the frame of the 23rd International polar Meeting of the German Society of polar Research. In addition to scientific highlights, ...

Antarctic expedition provides new insights into the role of the Southern Ocean for global climate

... which is motivated by the International polar Year 2007/08 and whose goal it is to understand ... and within the framework of the International polar Year 2007/08, researchers from all over the world ... intensify research activities. The International polar Year provides a unique opportunity for combining ...

Researchers reveal HIV peptide's possible pathway into the cell

... lipids faces the exterior of the cell, with the polar end facing the outside of the cell. Another ... under the first layer, forming the bilayer. The polar end of the lower layer faces the interior of the ... achieve a more stable state, the surface of the polar cell membrane and the positively charged HIV ...