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Tag: "layers" at biology news

Definitive evidence found of a swimming dinosaur

...st traces, possible undertracks preserved in lower layers of sediment. "The trackway at La Virgen del Campo opens the door to several new areas of research," said Costeur. "New biomechanical modeling will increase our understanding of dinosaur physiology and physical capabilities, as well as our view of...

How to look at dinosaur tracks

.... In the latter case, erosion may expose prominent layers of concentric circles extending from the former location of the true track. These “undertracks?reveal the squishing and displacement of sand when the heavy dinosaur took a step. “The tracks and undertracks of large theropods found in the [Middle J...

Hearts of male and female rainbow trout are different

...microscopy was used to capture images of ventricle layers and analyzed for layer cross-sectional areas. Lactate concentration and net lactate release from cardiac tissue was also examined. Results The researchers found: ventricle strips from males and females had similar rates of oxygen ...

The longest carbon nanotubes you've ever seen

...--a catalyst made of alternating metal and ceramic layers atop an oxidized-silicon wafer base--which served as the foundation for growth. "This process is revolutionary because it allows us to keep the catalyst 'alive' for a long period of time thus, providing fast and continuous transport of the carbon ...

Scientists develope a new model of artificial canine skin

...ctions between the cell populations of the various layers is of vital importance for skin biology, but these...to air. The cells proliferated forming the various layers of the epidermis. The model develops a morphological structure similar to that of canine skin. Ad...

Magnetic computer sensors may help study biomolecules

...sciences. Spin valves are made by stacking thin layers of materials with different magnetic properties. T...ngth to align the electron "spins" in the magnetic layers in the same (on) or opposite (off) directions. NIST researchers made an array of spin valves, each a...

Researchers learn what sparks plant growth

...ture, the scientists examined shoots and the three layers of tissues that make up the shoot system: the epid...duction and uptake of the hormone in the different layers of plant tissues. According to Chory, brassinolide is a potent growth hormone involved in the plant’...

Stem cells act through multiple mechanisms to benefit mice with neurodegenerative disease

...bryonic stem cells were grown without mouse feeder layers and in a "defined" culture medium that is compatible with clinical use and demonstrating for the first time that such preparations are consistent with a therapeutic impact. Sandhoff results from a genetic mutation that reduces the body's supply...

Synthetic peptide targets latent papilloma virus infections

...infectious viruses only in the top, differentiated layers of tissue. Previous work showed that the bovine papilloma virus hitchhikes by throwing out a thumb - in actuality, a protein called E2 - that latches onto a cellular protein that, in turn, attaches to histone proteins that envelop the chromosome, t...

Progress toward artificial photosynthesis?

...made of flat, graphite-like layers. The individual layers consist of ring systems involving carbon and nitrogen atoms. This porous material, called graphitic carbon nitride, is very heat-stable and, although it enters into many chemical interactions, it is so stable that it nearly always re-forms—an ideal c...

Scientists re-grow dental enamel from cultured cells

... Harvard Medical School reported the use of feeder layers for culturing epithelial cells from the skin (the 3T3-J2 cells used in the current study were gifted by Dr. Green). The cell-scaffold approach is based on tissue-engineering technology developed at the Forsyth Institute (MA) and was applied by one of...

Biologically inspired sensors can augment sonar, vision system in submarines

... components are first cast in place on sacrificial layers using photolithography and planar deposition. A small amount of magnetic material is electroplated onto each of the parts, which are then freed from the substrate by an etchant. When a magnetic field is applied, the induced torque causes the pieces t...

DNA layer reduces risk of reserve parts being rejected

...ion technique. With this technique, ultra-thin DNA layers can be built up and immobilized. The first layer a...the surface by means of adsorption. The subsequent layers remain in place due to electrostatic interactions. This makes it possible to build up multiple layer...

Ultrathin films deliver DNA as possible gene therapy tool

...rst in one solution, then another. The individual layers are so thin it would take roughly 10,000 of them t... the layer-cake design. The researchers alternate layers of DNA with layers of a polymer that is stable when dry but that degrades when exposed to water. Be...

Volcanic eruptions, ancient global warming linked

...and from northern Europe through analyzing the ash layers deposited toward the end of the peak of the volcan...tical ages, they were able to positively match ash layers in east Greenland with those in marine sediments in the Atlantic Ocean. "We think the first volca...

Coated nanoparticles solve sticky drug-delivery problem

The layers of mucus that protect sensitive tissue throughout ...ticles, the researchers also discovered that mucus layers have much larger pores than previously thought, providing a doorway that should allow larger and lon...

ASU researchers test antibacterial effects of healing clays

..."bread" is composed of three regions, two silicate layers with tetrahedral rings bounding an octahedral core. The "peanut butter" is the charged cations, for example, potassium, that stick to the negatively charged tetrahedral ring surface. And the jelly? Organic compounds or other species of any or no char...

German researchers develop first non-invasive test to measure skin aging

...er-based technique images the fabric of the deeper layers of the skin, combining methods for imaging collagen and elastin, whose degeneration causes the appearance of wrinkles and the progressive loss of skin smoothness. The technique measures relative amounts of collagen and elastin by a single factor, whi...

Tearing down the fungal cell wall

... this gene could serve as a physical bridge in the layers of the cell wall or function as a regulator of cell wall biosynthesis. Future work will focus on identifying the role of the product of the AbNPS2 gene which should allow us to get an important handle on the precise series of molecular events that gi...

Bones at the nanoscale

...re is applied to a bone, this is ab-sorbed by soft layers at successively lower length scales, and less than a fifth of the strain is actually noticed in the mineral phase. The soft structures form a single rigid unit at the next level and so on, enabling the tissue to sustain large strains. This is why the...

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(Date:10/15/2014)... 2014 NXT-ID, Inc. (NASDAQ: NXTD and ... the growing mobile commerce market releases photos and video of the ... Monday October 13 th . Gino Pereira ... and angel investor Mr. Chad A. Verdi rang the ... thanked his investors and employees "for their work and dedication in ...
(Date:10/14/2014)... of years since T. rex took its ... scientists is breathing life back into dinosaurs using high-powered ... research has important implications for how dinosaurs used their ... sense of smell and cool their brains. , ... student Jason Bourke, lead author of the new study ...
(Date:10/14/2014)... – Scientists from The Scripps Research Institute (TSRI) have ... Health (NIH) to lead an investigation of Lassa fever ... Africa. The study aims to understand how Lassa fever ... others survive the inflection. , "The ultimate goal ... how Lassa fever virus causes disease and develop new ...
Breaking Biology News(10 mins):Photo Release: NXT-ID Inc. Rings Opening Bell of the NASDAQ Stock Market October 13th 2Photo Release: NXT-ID Inc. Rings Opening Bell of the NASDAQ Stock Market October 13th 3Dinosaur breathing study shows that noses enhanced smelling and cooled brain 2Dinosaur breathing study shows that noses enhanced smelling and cooled brain 3Scripps Research Institute team receives $6.6 million to investigate deadly Lassa virus 2
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