Proximal in Biological News

Olympus broadens portfolio with new biliary metallic stent

... markers that allow physicians to determine the position of the stent under an X-ray prior to deployment. A black marker is positioned at the proximal end of the stent facilitating endoscopic confirmation of the stent during deployment. The ease of deployment combined with superior radial support ...

New and improved tomato analyzer

... elongated or "pear" shape. Visual observation supported that the software accurately measured the degree of pear shape. Additional tests to determine proximal end angle, the shape of the fruit nearest the stem, showed comparable results between the two methods. This adds to the software's versatility of ...

New 'smart' materials for the brain

... Unlike the metal electrodes that are currently used in research and clinical applications, the nanotubes can create shortcuts between the distal and proximal compartments of the neuron, resulting in enhanced neuronal excitability. The study was conducted in the Laboratory of Neural Microcircuitry at ...

Caltech-led researchers find negative cues from appearance alone matter for real elections

... of appearance on electoral success: work by political scientists studying real voting decisions and work by cognitive neuroscientists studying the proximal mechanisms of the effects of inferences on decisions. The fMRI studies are an important step in the latter direction." ...

Humans have caused profound changes in Caribbean coral reefs

... Coral reefs in the Caribbean have suffered significant changes due to the proximal effects of a growing human population, reports a study published in the Proceedings of the Royal Society of London, B. It is well acknowledged ...

Biophysical Society announces winners of 2008 Minority Travel Awards

... Mutagenesis of the Bt Toxin Cyt1A for Intramolecular Distance Determination by FRET. Joseph Sabat, Albert Einstein College of Medicine, proximal Ligand Switching Mechanism of iNOS. Kumar Sinniah, Calvin College, The Effect of Divalent Cations (Mg2+, Zn2+, Mn2+, and Ca2+) on the ...

Family conditions may affect when girls experience puberty

... sexual characteristics later than their peers. Consistent with the theory, quality of parental investment emerged as a central feature of the proximal family environment in relation to the timing of puberty, according to Bruce J. Ellis, associate professor of family studies and human development at ...

Clot-dissolving agent may be beneficial in treatment of severe frostbite

... 97 of 234 (41 percent) among those who did not receive tPA. “Moreover, no proximal [closer to the body than the fingers or toes] amputations were required in ... hours in our series,” the authors write. “The control group underwent 14 proximal amputations, including five below the knee. The preservation of limbs, ...

Plant-derived molecules, genetic manipulation point to future chemoprevention methods

... the colon tumors in IGF-deficient mice were less likely to be found in the proximal colon; 25 percent of tumors were in the proximal colon of deficient mice, compared to 60 percent in the control mouse ...

Fat overrides effects of vitamin C

... will be presenting her results at the Society of Experimental Biology’s Annual Main Meeting on Monday 2nd of April. The incidence of cancer of the proximal stomach has been increasing over the last 20 years for which environmental factors, such as diet, certainly play a part. Nitrite, which is present in ...

How the octopus forms an elbow

... remarkably simple mechanism for adjusting the length of the arm segments according to where the object is grasped along the arm. The arm also forms a proximal joint near where the arm meets the body, and a distal joint near the suckers that have grasped the food. The medial joint typically exhibits the most ...

USC researchers track down the stem cells that create feathers

... their progeny is displaced upward to create a feather. When the bird molts, the quill of the feather is dislodged from the follicle with a tapered proximal opening-the very feature that has historically made feathers so useful as writing implements-leaving behind a ring of stem cells for the creation of ...

Bioartificial kidney under study at MCG

... immune system. The new device for kidney failure adds billions of kidney cells that can perform many of these important kidney functions. Human proximal tubule cells are collected from kidneys obtained by the National Disease Research Interchange, a nonprofit organization that provides researchers ...