End Of World Population Growth Projected For 21st Century
...percent chance that the world'spopulation will not reach 11.5 billion – double today's population –within the next century, if ever. The projections are the first fullyprobabilistic ones ever released and reflect the impact of alternativeassumptions for birth rates, migration and death rates. Bas...Cornell Scientists Find Way To Boost Rice Crop Yield -- They'll Walk On The Wild Side
...om 1965 to 1995, the world's population doubled to reach its current size of 5.7 billion people. With global estimates of 8.9 billion people to feed by the year 2030, the Cornell scientists are looking for ways to improve production of staple food crops. "We've been breeding rice for 70 years, with the sa...Methane Deep In Ocean Crust Could Feed Chemical-Hungry Microorganisms
... volcanoes, the places where lava has been able to reach the surface of the seafloor rather than remaining locked below. In addition, Kelley and Gretchen Fruh-Green, a colleague from Zurich, Switzerland, have done the first-ever isotopic work on rocks from layer three and the methane does not appear to c...Overweight Cats Risk Disease And Premature Death, Cornell Study Finds
... skin conditions, probably because the cats cannot reach all parts of their bodies to groom themselves properly. Obese cats are twice as likely to die in middle age, which for cats is 6 to 12 years. Extremely thin cats are more likely to be presented to veterinarians for diarrhea. Veterinarians in the s...Purdue Researchers Prod Plants To Clean Up Pollution
...due.edu Mary Alice Webb is on sabbatical. You can reach her via e-mail at webb@btny.purdue.edu Writer: Rebecca J. Goetz, (765) 494-0461; e-mail, rjg@aes.purdue.edu Purdue News Service: (765) 494-2096; e-mail, purduenews@uns.purdue.edu...Ozone 'Chat Room' Provides Real-Time Air-Quality Research
...al research, Husar and Schichtel have been able to reach some tentative conclusions that implicate their own region, the Midwest. Also, they are seeing new trends in the South. "There is something special about the Midwest," says Husar. "There is always a pool of ozone in the greater Ohio River Valley -...Merging Physics And Neuroscience: First Evidence Of Self-Organized Criticality In Brain Networks
...s inmany interconnected cells allows the system to reach a criticalstate, permitting propagation of a spira...est-known example involves sandpilesthat gradually reach a critical state -- leading to avalanches ofvarying sizes -- as grains of sand are slowly added. Th...Jefferson Scientists Discover Mechanism Of Viral Link To Disease Commonly Associated With Asbestos
...nd cannot produce its protein, the cell may not reach its natural stage of programmed cell death. Instead, the cell continues to live and grow out of control - possibly leading to tumor formation and cancer. In the July 1996 issue of Clinical Cancer Research, Dr. Giordano's team reporte...Maternal Lead Exposure Linked To High Numbers Of Cavities
... blood of women who arepregnant. These high levels reach the fetus at a time critical tothe development of teeth and salivary glands. The scientistsdiscovered another possibility: They found that pups of exposedrats produced 30 percent less saliva, which protects teethagainst cavities by neutralizing acids...Researchers To Investigate Years Before Menopause
...s hope to shed light on the years before women reach menopause and investigate how their health and reproductive histories affect the patterns of change. "Anything that takes us a step further in identifying the changes leading up to menopause will be very helpful," says Dr. James W. W...Further Proof That An Altered Rb-2/p130 Gene Leads To Lung Cancer
...ed and cannot produce pRb-2 , the cell may not reach its normal stage of programmed death. It continues to divide, leading to cancer. Last July, reporting in Clinical Cancer Research , Giordano’s team described a study of 77 tumor samples from patients with surgically resected lung...Colorado State Anthropologist Finds Fossil Treasures In Africa
...op Room, making the fossils much more difficult to reach and remove. To access these fossils,the research team dangles in harnesses and other rock-climbing equipment as high as 15 feet above the cave floor, carrying drills andother excavation tools. The main chamber below the Drop Room, known as the atriu...Limits Of Life On Earth: Are They The Key To Life On Other Planets?
... Japan Trench, a deep-sea location where pressures reach many tons per square inch. How does one study the ancient climate of Mars? James Kasting of Pennsylvania State University hopes to look back through time and see what the paleoclimate on Mars was like. Early Mars appears to have had a warm and w...Early Career Development Grants Foster Faculty Research And Education
... an annual budget of about $3.3billion. NSF funds reach all 50 states, through grants to more than 2,000 universities and institutions nationwide. NSF receives more than 50,000 requests for funding annually, including at least 30,000 new proposals. NATIONAL SCIENCE FOUNDATIONEXAMPLES OF 1997 CAREER A...'Rolling Circles' Provide New Way to Amplify and Detect DNA
...s start at one end of a strand and workuntil they reach the other end. But Kool's strands are circular,not linear -- since there is no end, the polymerase keeps going until it runs out of raw material or spontaneously falls off. "This is how some viruses replicate themselves," says Kool."We tapped ...UF Researchers Identify Virus That May Cause Epidemic Disease In Sea Turtles
...them. "It takes sea turtles a long time to reach sexualmaturity," Klein said. "So what this disease does isit affects juveniles and young adults and removes them from thepopulation so they can't go on to become breeders." More than 50 percent of the green turtles living in theIndian River L...Garlic Prevents Hardening Of Aorta, New Study Shows
...ount of time pulses of blood from the hearttook to reach the femoral artery in the leg. Researchers measured the PWV for subjects at rest and during mild exercise. On the average, the stiffness of the aortas of subjects in the garlic groupmeasured 15 percent less. “The effect was larger than we...Columbia Researchers Identify Gene For Inherited Baldness
...ogy at Columbia-Presbyterian. "It is nowwithin our reach to design ways to grow hair, remove hair, even dye hairgenetically and -- best yet -- this can all be accomplished topically, reducingpossible side effects." Dr. Christiano's team noticed striking similarities between hairlessmice tha...Ant Pheromone May Aid Alzheimer's Patients
...ted trail to a source offood; by the time the ants reach the prey item, they are excited enough toattack with venom that contains the pheromone they were following. -- ZIGZAG PATH: The pheromone trail left by an ant, such as the "A. rudis", isnot the shortest distance between two points to begin with, an...Short-Course TB Prophylaxis Effective In HIV-Infected Individuals
...ort-course regimen may help extend the reach of therapy in certain high-risk groups, including HIV-infected individuals and children living in households with people with infectious TB." Dr. Gayle adds that although preventive therapy for infected individuals in these ...