Tag: "layered" at biology news

The origin of perennial water-ice at the South Pole of Mars

...r-ice. They are sitting on top of million-year old layered terrains and provide strong evidence for a recent glacial activity. However, only now a realistic explanation for the age of the deposits and the mechanism of their formation could finally be suggested. This was achieved thanks to the OMEGA mapping ...

Volcanic eruptions, ancient global warming linked

...d the Faeroe Islands, where they cooled, leaving a layered sequence of lava flows as deep as six kilometers in some places. Duncan said the eruptions are similar in scale with the well-known Deccan Flood Basalts in India. "They are also about 40 times as big as the Columbia River basalts in Oregon and Wash...

Invisible for electrons

...ce, flakes of varying thickness break off from the layered material. Some layers are thereby formed that are only one atom thick. In order to find these and further process them, the scientists used a microfabrication method that is also used in the production of microprocessors. As a base, the researchers u...

Orbiter provides new hints of past groundwater flows on Mars

...ks, and crossed by dark sand dunes. Within those layered deposits, the exquisitely detailed images show, th...tian surface for three years, is now exploring the layered deposits exposed by Victoria Crater. That crater sits on a vast plain just south of the Martian equ...

Dig deeper to find Martian life

...tested; dry regolith, water ice, and regolith with layered permafrost. The particle energies and radiation doses were measured on the surface of Mars and at regular depths underground, allowing the calculation of cell survival times. The team took the known radiation resistance of terrestrial cells combine...

Leibniz Prize winners 2007 announced

... of special exchange interactions in ferromagnetic layered systems (interlayer exchange coupling) is already a staple of modern textbooks on solid state physics. Bruno analysed several magnetic effects in quantum mechanics (Casimir effect, spin Hall effect) and examined the role of Berry phases in anisotr...

A new approach to growing heart muscle

...ormed in just four days after a million cells were layered on fibrin gel could contract with an active force of more than 800 micro-Newtons. That's still only about half the force generated within the tissue of an actual beating heart, but it's much higher than the forces created by engineered heart tissue s...

Sea urchin genome suprisingly similar to man and may hold key to cures

...regulate just one gene expression of a single-cell layered gut of the sea urchin larva, at least 14 proteins binding the DNA at 50 sites are needed, Calestani said. "Multiply that hundreds of times and you begin to understand the level of complexity involved in human development," she added. Using a "sim...

Origins of life

... widespread ecosystems. Although rare today, these layered deposits of calcium carbonate are found in shallow marine seas throughout 3.4 billion-year-old geologic records. Ancient stromatolites represent a mineral record of carbonate chemistry and the evolution of early life. In the Geology paper, Dr. Andres...

Newly discovered gene may hold clues to evolution of human brain capacity

...t and play a critical role in the formation of the layered structure of the human cerebral cortex. Cajal-Retzius neurons release a protein called reelin that guides the growth of neurons and the formation of connections among them. HAR1F is active at the same time as the reelin gene. "We don't know what i...

From climate dynamics to educational research...

...f this research is to develop basic principles for layered systems that react to their environment just like living skin, with sensory properties, protective properties and permeability, in order to assist in the development of functional technical components. This will involve cooperation between material s...

New Arctic fossils fill evolutionary gap between fish and limbed animals

...to the site. The fossils were recovered from the layered rock of the so-called Fram Formation, the deposits of meandering stream systems formed some 375 million years ago when North America was part of a supercontinent straddling the equator. These fossils and previously known fossil relatives suggest the ...

First Amazon-Andean crop plant transfer and corn processing in Peru 3600-4000 years ago

...eruvian cuisine like causa (mashed yellow potatoes layered with avocado and seafood) and carapulcra (dried potatoes and pork/chicken in peanut sauce) combine food crops from Amazon basin rainforests and Andean highlands. Smithsonian archaeologists and colleagues presenting in the prestigious journal, Nature...

Secrets of the sea yield stronger artificial bone

...he intricate structure of nacre, which is a finely layered substance found in some mollusk shells, such as oy...e to guide the process. Seawater can freeze like a layered material, so why not use this property to cast ceramics that mimic nacre," says Antoni Tomsia of Ber...

ASU geologists suggest Mars features are result of meteorite strikes, not of evaporated lakes

...oration Rover Opportunity landed has sediments and layered structures that are thought to be formed by the evaporation of an acidic salty sea. The prevailing thought is that when this Martian sea existed it may have supported life forms and thus would be a prime site to explore for fossils. However, ASU geo...

UK working with 20/20 GeneSystems

...rly detection of lung cancer using its proprietary layered peptide array (LPA) platform. "Our goal is to create the first accurate blood test for detecting lung cancer in its early, most treatable stages," said Jonathan Cohen, president and CEO of 20/20 GeneSystems Inc. "UK's partnership with 20/20 will all...

New cell transplantation technique restores insulin production in diabetics

...The sandwich technique is so-called because of the layered applications of gelfoam and coil used to close the access site." Dr. Krishnamoorthy said that even though percutaneous islet cell transplantation is currently an experimental procedure, the sandwich closure is a safe method that prevents many of the ...

Physics team puts new twist on spin hall effect

...he Hitachi device can be attributed to the special layered design of the semiconductor chip that yielded operation in a regime close to the intrinsic spin Hall effect. "They are both beautiful experiments, and one of the most remarkable aspects is that they seem to be exploring opposite regimes," Sinova add...

Flies have morning and evening clocks

... at hand, as researchers learn about an adaptable, layered system that has emergent properties at many levels of organization. Drosophila workers, who have been so effective at taking the clock apart, are now succeeding in putting it back together." Biological clocks in both flies and humans operate on a ...

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(Date:10/29/2014)... As bodies decompose, their types and numbers of ... provide could mean the difference between a closed ... University is using a more than $866,000 U.S. ... investigators examine these changing populations. The microbial communities ... of death, gender, race, socioeconomic relations and more, ...
(Date:10/29/2014)... potential of the Barcode of Life Data Systems ... Biodiversity Data Journal (BDJ) used specimen ... these into a human-readable text developed in manuscript within ... used to study the species distributions of ten Nearctic ... BOLD is originally designed to support the generation and ...
(Date:10/29/2014)... is a hormone released by the stomach and it ... as a psychoactive substance that primarily affects brain function, ... , This knowledge, combined with findings from animal studies, ... potential to stimulate alcohol craving. , Dr. Lorenzo Leggio ... that, as they had anticipated, alcohol craving was increased ...
Breaking Biology News(10 mins):MSU partners with Detroit to investigate death scenes 2Go straight and publish: From Barcode of Life Data Systems to scholarly publishing systems 2Ghrelin stimulates an appetite for drinking alcohol 2
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