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mass in Biological News

AGU journal highlights -- Aug. 6, 2009

... chemicals get to the stratosphere How ocean mass flows around Antarctica A 3-D model of ocean ... 10. How ocean mass flows around Antarctica Understanding the ... circulation and the climate system. To study mass flows in the Southern Ocean near Antarctica and ...

Reducing risk of hospitalization in the elderly

... of a person's risk of hospitalization than muscle mass or size. The relative risk for hospitizations ... for those with poor walking or less dense muscle mass "Our research suggests that we need to ... of sarcopenia today tend to focus on lean mass or muscle size, our study shows that is looking ...

DOE-funded research projects win 46 R&D 100 Awards for 2009

... the U.S. flammability tests. The PCM adds thermal mass to buildings, thus generating heating and cooling ... Kinetic-Energy-Reducing Inlet System for mass Spectrometers - permits high-resolution mass analysis of large, intact biological molecules ...

Study explains potential failure of oral contraceptives with obese women

... generally do not include people with a high body mass index," Cherala said. "But body weight and ... of whom were of normal weight and 10 with a "body mass index" of more than 30 a common measure of ... women just considered "overweight," with a body mass index of 25-30, may also be at increased risk of ...

Two dietary oils, two sets of benefits for older women with diabetes

... total body fat and lowered the women's body mass index (BMI), a common health measure of weight ... determine the women's baseline and follow-up lean mass and fat throughout their bodies and specifically ... CLA supplementation significantly decreased body mass index and total body fat over both diet periods, ...

New biomarker method could increase the number of diagnostic tests for cancer

... and Faculty Director of the Sandler-Moore mass Spectrometry (SMMS) Core Facility; Simon Allen, ... Most proteomic technologies have been based on mass spectrometry, a decades-old technology that ... which proteins are in a specimen based on the mass and electric charge of fragments of each protein. ...

New research shows dinosaurs may have been smaller than we thought

... in the dinosaur community to estimate the mass of dinosaurs. "The original equation used by ... fairly accurate results when determining the mass of smaller animals, but when used on larger ... developed a new equation for calculating dinosaur mass based on bone dimensions. This equation doesn't ...

Dino-not-so-soaring

... statistical model used to calculate dinosaur mass is flawed, suggesting dinosaurs have been oversized. Widely cited estimates for the mass of Apatosaurus louisae , one of the largest of the dinosaurs, may be double that of its actual mass (38 tonnes vs. 18 tonnes). "Paleontologists ...

An easy way to find a needle in a haystack by removing the haystack

... technique, called MAILD, is based on classical mass spectrometry (MALDI-TOF/MS) and enables ... the invention is protected by patent. mass spectrometry is an analytical technique used to ... of chemical compounds. In the last two decades mass spectrometry found vast applications in biology, ...

USC researchers present diabetes findings at American Diabetes Association Scientific Sessions

... Induced Hypoglycemia). Pancreatic Beta Cell mass in Development of Diabetes Tom Buchanan, ... his research on the role of pancreatic beta cell mass in the regulation of blood sugar, and whether it is possible to modulate beta cell mass to prevent type 2 diabetes. Buchanan will ...

New book suggests Earth perhaps not such a benevolent mother after all

... at conditions that existed during numerous mass extinction events in Earth's history. In a ... and of Earth and space sciences, says numerous mass extinctions show that our planet behaves in ... of Gaia," he said. He notes that of 15 mass extinction events in Earth's history, only the ...

Princeton geoscientist offers new evidence that meteorite did not wipe out dinosaurs

... 65 million years ago, some phenomenon triggered mass extinctions on the land and oceans. This event ... struck Earth just at the boundary and caused the mass extinction of dinosaurs and many other animals. ... down after the impact. If this impact caused the mass extinction, then the foraminifera above the ...

American Chemical Society Weekly PressPac -- April 8, 2009

... "Use of Differential Isotopic Labeling and mass Spectrometry To Analyze Capacitation-Associated ... the enzymatic activity of the ricin protein by mass spectrometry, and identifying the ricin protein by its amino acid sequence through mass spectrometry. In laboratory tests using small ...

Orientation of antenna protein in photosynthetic bacteria described

... the first time combined chemical labeling with mass spectroscopy to verify the orientation. The team ... where the label is in the protein by using mass spectroscopy. That's a kind of footprinting ... were done in the Blankenship lab, while the mass spectrometry analysis was done in the Washington ...

April 2009 Geology and GSA Today media highlights

... sulfur cycle associated with the Late Ordovician mass extinction in South China Tonggang Zhang et ... Canada. Pages 299-302. The Late Ordovician mass extinction took place in the Hirnantian Stage ... of the sulfur and carbon cycle accompanying the mass extinction, and their isotopic data suggest ...

As good as it gets: Octogenarian muscles don't get stronger with exercise

... Octogenarian women were unable to increase muscle mass after a 3-month weight lifting program targeted ... had found that 70-year-old women gained 5% muscle mass with resistance training. The biopsy results ... that it is better to build as much muscle mass as possible earlier in life to ensure more muscle ...

AGU journal highlights -- March 25, 2009

... chloride increases the total reactive chlorine mass by 20 to 40 percent in the atmosphere of ... particles exposed to sulfuric acid increase in mass when relative humidity rises because the acid-coated soot absorbs water. An increase in particle mass is often accompanied by a decrease in size, ...

'Fattysaurus' or 'thinnysaurus'? How dinosaurs measure up with laser imaging

... Acrocanthosaurus probably weighed in at a similar mass to MOR555 and other medium sized adult T. rex ... calculation of body segment masses, centres of mass and moments of inertia for each animal all the ... organs to find the maximum plausible range of mass for the animals. Even scientists cannot be sure ...

The continents as a heat blanket

... of warm water in a cooking pot. This heat-driven mass transport is called convection. On the Earth's ... interior does not generally lead to a chaotic mass transport within the Earth's mantle. On the ... the Earth's mantle and the associated convective mass flow. In other words the continents act as a ...

UC San Diego and Genentech scientists develop potentially disruptive antibody sequencing technology

... and director of the new Center for Computational mass Spectrometry (CCMS) at UC San Diego. "This ... technique with protein sequencing based on mass spectrometry. While mass spectrometry routinely is used to sequence short ...

Genes for 9 health indicators

... insulin, C-reactive protein, as well as body mass index and blood pressure. Eight 'environmental' ... data such as environmental influences and body mass index. Three regions were associated with LDL or ... was divided into normal or elevated body mass index. "Our population sample allows us to ...

Adiponectin is a metabolic link between obesity and bone mineral density

... known that excess body weight and elevated body mass index are strongly correlated with high bone ... of fragility fracture associated with low bone mass and osteoporosis. The strength of the femur neck, ... adiponectin was associated with lower bone mass and weaker bones in growing mice compared to ...

AGU journal highlights: Nov. 11, 2008

... To investigate the total loss of the ice sheet's mass from 1958 through 2008, Rignot et al. study two ... from remote sensing techniques; and surface mass balance, which is derived from a model of melting ... accumulation. The authors find that surface mass balance and temporal variability in ice discharge ...

Extinction by asteroid a rarity

... out to be wrong. For geologists who study mass extinctions, the silver bullet is a giant ... the prime suspect only in the most recent of five mass extinctions, said USC earth scientist David ... these two specific times that are associated with mass extinction suggests at the very least that maybe ...

Mass extinctions and the evolution of dinosaurs

... a slow and complicated event, and driven by two mass extinctions. "The sheer size of dinosaurs ... million years ago and survived the Late Triassic mass extinction (228 million years ago), when some 35 ... groups did not happen until after the much bigger mass extinction some 200 million year ago, at the ...

October 2008 GEOLOGY and GSA TODAY media highlights

... the spatial and temporal variability of heat and mass exchanges between the solid earth and the oceans ... and biotic recovery was delayed relative to other mass extinctions. A major unresolved question has been ... in the immediate aftermath of latest Permian mass extinction. These fossils present a record of ...

September Geology and GSA Today media highlights

... The GSA TODAY article studies the end-Permian mass extinction in the marine realm, examining ... region during the last ice age removed a large mass of sedimentthis would have resulted in ... years has resulted in replacement of that mass and in large-scale subsidence. The subsidence ...

Dying frogs sign of a biodiversity crisis

... other plant and animal species add up to a new mass extinction facing the planet. "There's no question that we are in a mass extinction spasm right now," said David Wake, ... of new species. Extreme cases of this are called mass extinction events, and there have been only five ...

UCSB researcher leads worldwide study on marine fossil diversity

... periods (also known as the "mother of all mass extinctions") - Alroy said this report shows that ... that there have been only three truly major mass extinctions in the fossil record. "For many ... has been saying that there have been five major mass extinctions, and it's gotten into the public ...

The mystery of mass extinctions is no longer murky

... If you are curious about Earth's periodic mass extinction events such as the sudden demise of ... that is the primary cause of the world's periodic mass extinctions over the past 500 million years. ... think there may have been as many as 23 mass extinction events, many involving simple forms of ...

Tests show LLNL detection instrument can monitor the air for all major terrorist threat substances

... using a system called Single-Particle Aerosol mass Spectrometry, or SPAMS, is described in the June ... Airport. As part of a background study, the mass spectrometry system analyzed the air for about ... the instrument in the form of single-particle mass spectra," Frank said. "As a result, we get ...

U.S. IEEE members to report on Sci-Tech at California newspapers

... WASHINGTON -- Two IEEE-USA Engineering mass Media Fellows, Wendy Hansen and Maddalena ... her application to join the IEEE-USA Engineering mass Media Fellows program, Hansen indicated that she ... students have been chosen as IEEE-USA Engineering mass Media Fellows; and have helped journalists in ...

New technique determines the number of fat cells remains constant in all body types

... during the teenage years. Changes in fat mass in adulthood can be attributed mainly to changes ... annually at all adult ages and levels of body mass index. Neither fat cell death nor its ... a direct correlation between the measures of fat mass (measured from ...

Arable land can have a negative impact on air quality

... moving from the Black Sea to Italy, the air mass quickly drifted to Central Europe. Just one day ... rapidly. The researchers estimated the total mass of the dust cloud to be at least 60,000 tons. ... to more than 600 wagonloads of sand. The actual mass was probably much greater still, since the ...

Testosterone replacement theraphy beneficial in men 60 and older

... known as bone mass). Reduced bone density or bone mass means there is less cushioning to protect the ... of care used to improve bone strength and muscle mass in males. However, TRT use has been the subject ... at least a protective effect on existing bone mass over time by preventing unwanted increases in ...

Ibuprofen or acetaminophen in long-term resistance training increases muscle mass/strength

... over placebo in the amount of quadriceps muscle mass and muscle strength gained during three months of ... time period would significantly increase muscle mass and strength. They expected the placebo group to ... to exercise. Another is the loss of muscle mass that takes place when astronauts are exposed to ...

UC San Diego researchers eliminate drug discovery bottleneck

... NRPs through an innovative collaboration between mass spectrometry experts at the UCSD Skaggs School of ... beads, then the new algorithms both decipher the mass of each bead based on the mass spectrometry and determine the order of the beads ...

Antarctic ice loss

... Increasing amounts of ice mass have been lost from West Antarctica and the ... week in Nature Geoscience. Meanwhile the ice mass in East Antarctica has been roughly stable, with ... The authors conclude that the Antarctic ice sheet mass budget is more complex than indicated by the ...

December GEOLOGY and GSA TODAY media highlights

... global climate system; cause of the end-Permian mass extinction; Olduvai Basin lake cycles and ... 1083-1086. Earth witnessed its most severe mass extinction 250 million years ago. This extinction ... the marine photic zone euxinia, the faunal mass extinction, and the cyanobacterial expansion all ...

Ozone can affect heavier people more

... the first evidence that people with higher body mass index (BMI) may have a greater response to ozone ... healthy, non-smoking men and women to see if body mass index (BMI)a measure of the amount of fat a ... To examine the question of whether higher body mass index influences ozone responses in humans, the ...
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