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Curvature in Biological News

Study links low-frequency hearing to shape of the cochlea

... establishes a direct link between the cochleas curvature and the low-frequency hearing limit of more than ... hearing evolved. It turns out that it is the curvature of the cochlea, not its size, that is highly ... and a busy street. The idea that the cochleas curvature has a significant effect on hearing has been ...

Carnegie Mellon develops computer model to study cell membrane dynamics

... membrane structures, each disk bent the membrane slightly. This local curvature spread around a disk like a little halo. When two disks approached one ... proteins can indeed aggregate and facilitate vesiculation based on their curvature imprint alone. Our simulations show that proteins need not interact ...

Researchers discover how stealthy HIV protein gets into cells

... Wong said. Something about the TAT protein had induced a saddle splay curvature in the membrane. This shape resembles a saddle (like that of a Pringles ... to buckle in two different directions, bringing on the saddle splay curvature that allowed the pores to form. When another positively charged amino ...

Study examines genetic defects linked to body abnormalities in patients with childhood cancer

... prevalence of body abnormalities, such as asymmetric lower limbs and curvature of the spine, suggesting that the genetic defect responsible for the ... (such as differing length in limbs; broad hands or feet; prominent ears; curvature of the spine). The patient group consisted of 898 long-term survivors of ...

Hind wings help butterflies make swift turns to evade predators, study finds

... flight trajectories; then they analyzed and plotted on a computer the insects' flight velocity, acceleration, how fast they changed direction, the curvature of their path and more. They found that clipping the back wings did not affect basic flight, but "we were able to show that removing the hind wings ...

New filtering technology has environmental, industrial applications

... of the material like a layer of cream," Youngblood said. When a fluid lands on the surface of the material, it forms beads having a distinctive curvature determined by the "contact angle" of the substance. The higher the contact angle, the more a material is likely to form beads. Lowering the contact ...

Biochemists reveal details of mysterious bacterial microcompartments

... structures. "This principle of closing a structure by combining a large number of hexagons with a small number of pentagons to create a piece of curvature has been understood by architects, molecular biologists studying viruses and soccer ball manufacturers." That principle is also understood by ...

Reconstructing the biology of extinct species: A new approach

... a highly significant statistical relationship between the radius of curvature of the semicircular canals and the species' habitual way of moving. More ... species consistently have semicircular canals with a larger radius of curvature than do slower-moving ones. For example, a small, fast-moving leaper like ...

Scientists characterize proteome of human cornea

... or astigmatism. These vision disorders are often the result of incorrect curvature or irregular shape of the cornea and are the most common vision disorders ... arise from cornea swelling (Fuchs' dystrophy) or thinning and change of curvature of the cornea (keratoconus)." In order to learn more about the cornea ...

New designer lipid-like peptide with lipid nanostructures for drug delivery systems

... Academy of Sciences and of Centre for Biomedical Engineering, Massachusetts Institute of Technology, Cambridge, USA report the study of “Tuning curvature and Stability of Monoolein Bilayers by Designer Lipid-Like Peptide Surfactants” in the May 30th issue of the online, open-access journal PLoS ONE. ...

Matrilin-3 gene discovered to prevent onset of osteoarthritis

... as multiple epiphyseal dysplasia (MED), a disorder that begins in childhood and can include malformation of the hands, feet and knees and abnormal curvature of the spine. In this study, researchers knocked out matrilin-1 and -3 in mice in order to study their link to osteoarthritis. When matrilin-1 ...

Gene loss accelerates aging

... of premature aging observed in these p63 deficient mice (image available on request) were hair loss, reduced fitness and body weight, progressive curvature of the spine, and a shortened lifespan. "Aging and cancer are two sides of the same coin. In one case, cells stop dividing and in the other, they ...

Potential treatments for neurofibromatosis

... over a lifetime. Some NF 1 patients also develop numerous light brown (café-au-lait) spots on the skin, enlargement and deformation of bones and curvature of the spine (scoliosis), and in many instances, learning disorders. Occasionally, tumors may develop in the brain, on cranial nerves, or on the ...

U-M scientist to talk about tissue engineering at AAAS

... therapy approach works, Krebsbach said the next step would be working with engineers to develop anatomically correct scaffolding with the same curvature and contours of natural bones. That would help a patient develop new bone almost indistinguishable from nature's original equipment. Many ...
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(Date:8/28/2014)... (ESA) is pleased to announce the selection of Dr. ... Honorary Membership acknowledges those who have served ESA for ... affairs of the Society that has reached an extraordinary ... ESA Governing Board and then voted on by the ... Awards Ceremony at Entomology 2014, ESA,s Annual Meeting in ...
(Date:8/28/2014)... expansion of marine protected areas is needed to protect ... to investigators from the Wildlife Conservation Society and other ... saving the largest numbers of species, often at the ... ecological functions. , Many vital ecological functions ... also are food for millions of people. This ...
(Date:8/28/2014)... healthier for your neighbors than traditional cigarettes, but ... a new study from USC. , Scientists studying ... decrease in exposure to harmful particles, with close-to-zero ... to some harmful metals in second-hand e-cigarette smoke ... tobacco smoke contains high levels of polycyclic aromatic ...
Breaking Biology News(10 mins):Fred Baxendale selected as Honorary Member of the Entomological Society of America 2Study finds marine protected areas inadequate for protecting fish and ocean ecology 2Second-hand e-cig smoke compared to regular cigarette smoke 2
(Date:8/31/2014)... 31, 2014 To make it easy ... they can trust, NutriGold is shipping complimentary samples of ... has been set up to make taking advantage of ... According to Priya Khan, Director of Research and Development ... one of our products, they are entrusting us with ...
(Date:8/31/2014)... Rockville, MD (PRWEB) August 31, 2014 ... electronic health records (EHR) software firm that focuses ... overall practice success found a congruent commitment with ... In Sports . , “We create an environment ... and effortlessly, allowing more time with patients,” says ...
(Date:8/31/2014)... Richmond, CA (PRWEB) August 31, 2014 ... program of the California State Library, celebrates 30 ... and their families. Since its inception, California’s Library ... a million Californians learn to read and write. ... this volunteer-based program, the state is launching a ...
(Date:8/31/2014)... Wine only protects against cardiovascular disease (CVD) in people ... Veritas (IVV) study presented at ESC Congress today by ... Taborsky said: "This is the first randomised trial comparing ... of atherosclerosis (1) in people at mild to moderate ... was only protective in people who exercised. Red and ...
(Date:8/30/2014)... A retrievable and repositionable transcatheter aortic valve is ... according to research presented at ESC Congress 2014 ... direct flow medical (DFM) transcatheter aortic valve has ... the potential to improve transcatheter aortic valve implantation ... , Dr Pyxaras said: "TAVI is well established ...
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