Global Warming Would Foster Spread Of Dengue Fever Into Some Temperate Regions
..., the fewer mosquitoes are necessary tomaintain or spread dengue in a vulnerable population. ... change may have asubstantial global impact on the spread of dengue fever." The study was funded in part by the Climate Policy and AssessmentD......virulent clones of meningitidis are introduced and spread slowlyin certain segments of the population. Detecting these changes may improveunderstanding of meningococcal outbreaks and the ability to prevent them. ### ...Prostate Cancer Switch May Yield Map Of Cancer Machinery, Targets For Drugs
... controls -- becoming "androgen-independent" -- to spread throughout the body.This phenomenon was originally observed by McKeehan, and the Duke medical centerresearchers began exploring its molecular mechanism. The three scientists discovered the switch as a short stretch of RNAnestled in the string...Mathematics Reveals New Pattern Of Brain Cell Activity
...ed that it can producea very smooth wave that will spread through other cells, just like an excitatorysignal,” said Terman. “An inhibitory signal just travels muchslower.” The researchers found that the key to producing a smooth wave was notwhether a cell communicates in an excitatory or i...Liquid Crystals Light Up Simple Chemical Test
...s present in a test sample. First the researchers spread an ultrathin layer of gold atop an inch-squareglass plate, creating a microscopic landscape of gentle, parallel hillsand valleys. Within that landscape they placed a field of molecular receptors witha particular affinity for the target antibodies. N...American Museum Of Natural History Holds Symposium On Biodiversity And Human Health Issues
...diversity is a crucial factor in the emergence and spread ofinfectious diseases and its protection is theref...em alteration and degradation and the emergenceand spread of malaria, human immunodeficiency virus (HIV), hantavirus,hemorrhagic fevers, and Lyme disease. S...'Mean Gene' Found In Africanized Honey Bees
...al release from a Brazilian geneticist in 1956 and spread rapidly through South and Central America. Since then they have spread steadily north, entering Mexico in 1988. By 1991, almost 100 percent of the feral honey bees in Mexi......semetabolism) or benign, or whether the cancer has spread to any other organsystems of the body, he said here today at a national meeting of the AmericanChemical Society, world's largest scientific society. Such studies are being used to detect and stage ...Kaposi's Sarcoma Caused By Virus Usually Transmitted Through Homosexual Sex, According To UCSF Study
... use of available anti-viral drugs toinhibit viral spread within the body." Hopefully, he says, "this would, inturn, suppress development of Kaposi's sarcoma itself."...Purdue Research Helps Keep Phosphorus Out Of Surface Water
...lines will tell producers how much manure they can spread on land without over-applying phosphorus. The guid...l find that they produce more manure than they can spread on the land they own. "When manure is applied to meet the nitrogen needs of the crop, it exceeds the...Scientists Discover A Secret Of Bacterial Communication
...ch to it. At first thebacterial cells multiply and spread across the surface, but when they reach acertain density, they build a complex biofilm structure with built in watertunnels to carry nutrition into the cells and carry the waste out. Scientistscall this process differentiation. The message that initi......tant strains. Current therapies simplyprevent the spread of HIV to new cells. To address the larger issue, said Levy, research should focus on what appears tobe a natural immunity to the virus in some people. These infected individualsremain healthy for more than 15 years without any treatment. Being abl...Invasive Weeds Pose Major Threat To American Landscape
.... The report's authors blame the increase and spread of invasive plants on anincreasing human population that has led to greater disturbance of the land,increased demand for food and fiber, overuse of public land for recreation and commercial purposes, increasedinternational travel and globalization of...Web Site Offers Comprehensive Information On Mad Cow Disease
...oductsof other ruminants -- one way the disease is spread -- and Great Britain'sban on certain cuts of meat have renewed interest in the site. Visitors will find basic information on BSE and on Creutzfeldt-Jakobdisease -- BSE's human variation -- and possible links between the two diseases.Students and oth...Wistar Research Yields Information About Colorectal Cancer Cell Invasion
...t immunesystem responses to prevent the growth and spread of the tumor cells. Studies of the GA733 antigen are part of a $6.6 million program project fundedby the National Cancer Institute, for which Dr. Herlyn is the principalinvestigator. The primary goal of the project is to evaluate the humoral andcel...Composting Livestock Waste Provides Benefits
...carcasses. Dairy farms scrape the stalls daily and spread the manure on farm fields, but hog farms, beef fee.... "In all weather, 365 days of the year, we had to spread the manure on the fields. It was hard to find good people to do it, it was hard on the equipment, an...New Vancomycin Structure May Point To Path For Overcoming Antibiotic Resistance
...e called enterococcus. Given the fast-paced global spread of theresistant staph -- the first case in the world occurred only in May of lastyear, in Japan -- there is reason to fear the proliferation of bacteriaunresponsive to vancomycin and other current drugs. "Once a few bacteria become resistant...Hopkins Scientists Clock The Speed Of Comprehension
...he brain where it's applied, but the effectdoesn't spread to other nearby areas and is safely reversible." That makes the current a good test of whether a brain area is criticalfor a task, Hart notes. "We were able to show that an area known as the left occipitotemporalgyrus, located on the ...Gene Therapy May Suppress Uterine Fibroids
...erapy Christman uses has been shown to inhibit the spread of malignant cancer cells, but malignancies grow too fast and DNA delivery systems currently are too imperfect to make gene therapy more than a subordinate cancer treatment, he says. On the other hand, uterine leiomyoma cells are benign and slow-gro...Researchers Demonstrate That COX-2 Inhibits Angiogenisis In Tumor Cells
...sis, an important component in the development and spread of cancer. "What we found is that NSAIDs can work in two ways -- by inhibiting theenzyme cyclooxygenase-2 (COX-2) in the tumor cells, which then preventsproduction of factors that prompt angiogenesis, and by inhibitingcyclooxygenase-1 (COX-1)...