Mathematics Reveals New Pattern Of Brain Cell Activity
...ooth. But we discovered that it can producea very smooth wave that will spread through other cells, just li... The researchers found that the key to producing a smooth wave was notwhether a cell communicates in an excitatory or inhibitory way, but ratherwhich cells it......es, H2S is produced in the brain and ininvoluntary smooth muscle. An understanding of the role of H2S in these tissuesmay have many therapeutic applications, for example, in the control of bloodpressure. (Hideo Kimura, Ph.D., Salk Institute for Biological Studies, SanDiego, CA) An investigation of how ti...Biochemist Solves Riddle Of Collagen Stability
... bovine collagen is used to provide fuller lips or smooth away wrinkles. But those improvements don't last, Raines said, because the material starts breaking down after a few months. Collagen loses its stability over time by actually unraveling at the molecular level, which makes it susceptible to enzymes t...New Study Shows White Males Have More Receptors For Patent Blood-Vessel Contracting Substance
...es vessels toconstrict, is located in the vascular smooth muscle, and ETB, located in theendothelium, usually causes vasodilation, depending on the species and tissuelocation. The current study showed that males had a 75-25 ratio of ETA receptorsto ETB, while in females the numbers were closer to 50-50. Mal...Biggest Acoustics Meeting Ever
...edges arebetter at shielding sound than those with smooth walls. Penelope Menounou and her colleagues at theUniversity of Texas ( menounou@mail.utexas.edu ) have come up with an explanation for this phenomenon(1aNSb2). Maria Heckl of Keele University in England ( m.a.heckl@maths.keele.ac.uk ) will describe ...Engineered Neo-Organs For Bladder Replacement
...autologous cells from the bladder epithelium, plus smooth muscle cells. The cells had been expanded separately from a previously harvested autologous bladder biopsy. The researchers performed preoperative and postoperative urinary flow and X-ray studies. After their initial operation and recovery, the an...Scientist Receives Prestigious Award
...ls. He showed thatit controls the tone of vascular smooth muscle integral to cardiovascularfunction. This discovery has spurred further research to develop drugs to blockthe hormone's action, and clinical trials are now under way. "We try to identify individuals who show clear signs of brilliantcare...New Evidence For Growth Factor Role In Crohns Disease
...uring this thickening, wholesections of intestinal smooth muscle cells can become encased in a denseovergrowth of fibrous collagen. According to the UNC scientist, the new findings raise the possibility thattreatment aimed at blocking IGF-I in the bowel could prevent fibrosiscomplications, such as in......f their mating display.As it turns out, the mites' smooth moves do indeed boost their chances ofattracting a mate. Another example can be found among moths that have evolvedthe ability to detect the ultrasonic echolocation calls of bats, a key predator.A subset of this group, more recently evolved, can also...Angry Biotech Firms Are Blaming The Industry Leader For Bringing Modified Crops Into Disrepute
...ing themood in Europe. Monsanto was convinced that smooth acceptance of transgenic soyain the US would be mirrored in Europe. The entire industry is now having to deal with the consequences of thatmiscalculation. Though wary of breaking a tradition of solidarity againstopponents of genetic engineeri...Nuts And Oats May Build A Strong Heart
...xseed and flaxseed oil anda leafy vegetable called smooth purslane which is eaten mainly in Greece.Albert stressed that her results are preliminary because the questionnairesasked only whether the physicians had eaten nuts, not what kind or how many theyate. Also, other factors of diet or risk factors for ......akes blood vessels dilate by relaxing the vessels' smooth muscles.Nitric oxide is a key component to blood pressure. Levels of nitric oxide normally rise when someone is in a stressful situation. A lack of nitric oxide in the bloodstream, or a lack of reactivity by the blood vessels to nitric oxide, can n...Flexible Membranes - Moving Through The Twilight Zone Between The Nano- And The Microworld
...themicrometer scale is well understood in terms of smooth surfaces as described bydifferential geometry. In ...kness, however, the membranes are found to undergo smooth bendingundulations. Using these computer simulations, it was even possible to estimate the bendingri...New Coating Process May Prevent Body From Rejecting Medical Implants
..., a layer of the desired proteins is spread over a smooth surface likemica. The proteins and mica are then coated with a thin layer of sugarmolecules. Next, a Teflon-like fluoropolymer coating is applied to the surfacethrough a gas-phase plasma deposition process. The coating is then peeled offthe mica and ...Functional Arteries Grown From Cells Using Novel System That Simulates Fetal Environment
...After eight to 10 weeks within the bioreactor, the smooth muscle cellsproliferated and filled all the spaces...major problem facing researchers is that while pig smooth musclecells grow easily and rapidly outside the body in tissue culture, similar humancells are more ......iscosity, adhesion and other properties needed for smooth application of the coatings, said Schwerzel. The researchers also must explore other catalysts used to trigger the curing process. "These are solvable issues," Schwerzel added, "but they will take some time and effort in both b...Mathematics reveals inner workings of potassium pipeline
..., for example, developnew ways of affecting airway smooth muscle, which might have implications forasthma," said MacKinnon....Mechanical forces found to exert larger role in blood vessel health and disease
...transmural fluid flow stimulates thecontraction of smooth muscle cells, which lie deep within the vessel wal... pressure. To estimate the shear stress levels on smooth muscle cells, the group used acomputer simulation often used to model the flow of oil through sandst......um developed a new class of transformers that will smooth out the uneven voltages that plague today's grid and prematurely age electrical hardware ranging from light bulbs to motors to power supplies in electronic equipment. They are designed with so-called "solid state" technology, meaning they rely primar...