Malthus + 200: Disastrous 'Correction' Looms
ITHACA, N.Y. -- Two hundred years after the essay that put "Malthusian" in the lexicon, the consequences of overpopulation are more dire than ever, warns Cornell University anthropologist David Price. "Since the productive capacity of the planet is finite, a disastrous Malthusian correcti...New Study Of BRCA1 Shows No Need For Widespread Screening Of American Women
...sity of Washington in Seattle, draw thisconclusion after a case-control study of women of all ages with breast cancer,selected without regard to their family history. Their study is published in the March 25 issue of JAMA, the Journal ofthe American Medical Association. "Most of the inheri......alternative wheelchair designs nearly 10 years ago after watching an elderly man's unsuccessful struggle to push his wheelchair over a step in a park. Kumar and colleagues at Penn's General Robotics and Active Sensory Perception (GRASP) Lab specialize in designing machines that can walk as nimbly as goats ...Mathematics Reveals New Pattern Of Brain Cell Activity
...cells and then releasing it. The cells bounce back after they are released and pass the signal alongby suppressing other cells. Scientists observed inhibitory signaling amongbrain cells in the past, but assumed it couldn’t produce the smoothwaves that mark synchronous brain activities such as sleep. ...Chromosomal Abnormalities Key For Prediting Leukemia Outcome
...s who were continuouslydisease-free for five years after diagnosis were cured.” The study, which... in the study, 56 (9 percent) were alive fiveyears after diagnosis. Of these, nine died of AML between 5 and 10 years,one died of AML 11 years after diagnos...Caribbean Lizards Evolve Independently
... Examination of the populations 15 years after their establishmentconfirmed this prediction. "This finding is very exciting because it allows us to understand howspecies adapt to their environment at two very different time scales," saidLosos. "Our studies throughout the Caribbean reveal...'Mean Gene' Found In Africanized Honey Bees
...ivestock or pets. Honey bees lose their stingers after an attack, which causes them to die. A very aggressive colony of bees can lose thousands of its bees when they stage an attack. The aggressiveness of Africanized bees forces beekeepers to don protective clothing, which is hot, uncomfortable and cum...American Society Of Gene Therapy To Hold Its First Annual Meeting
...f social events, tours andtrips before, during and after the conference has been arranged. For further information and a meeting program, call the ASGT NationalOffice at (609) 848-1000, ext. 208, or visit the ASGT homepage at http://www.asgt.org, where registration materials may be downloaded. M...US-Cuban Scientific Collaborations Jeopardized By Travel Restrictions
...ial, and approval for entry at the "lastminute" or after the date of the requested time of travel, causing scientists tomiss important US or international meetings. The report states that according to anecdotal evidence collected by the AAASScience and Human Rights Program, younger Cuban scientists appea...... patients, treated tumors exhibited stable disease after E1A therapy. Targeted Genetics plans to initiate Phase II clinical trials for the treatmentof head and neck cancer in the second half of 1998. "This is extremely exciting for Targeted Genetics because the work presented atAACR validates our E1A appro...New Test Opens Window On Corrosive Free-Radical Activity In Individuals
... elevated during the critical period ofreperfusion after bypass surgery or treatment for a heart attack. In a report published in the October 15 issue of the Journal of ClinicalInvestigation, high levels of both 8-epi-PGF2alpha and IPF2alpha-I wereidentified in atherosclerotic plaque tissue removed...One Year Follow-Up Of Non-Invasive Angina Treatment Suggests A Lasting Benefit
... angioplasty or as a follow-up whenangina persists after these procedures, according to Tony Chou, UCSF ass...day, 80 patients were tracked for ayear on average after completion of the treatment. Forty randomly selectedstudy participants who received the active coun...Study Finds Some People Are 'Born To Smoke'
...entional parentalwisdom that a child who gets sick after sneaking a cigarette will be deterredfrom subsequent smoking. Current smokers were just as likely as non-smokers toexperience nausea or coughing when they smoked the first time, but it did notdissuade them from continuing to light up....Tiny Worm Reveals Workings Of Suspected Tumor Protein
...the RNAi worm offspring can be analyzed a few days after theinjection, says Shi. The embryos amazed...hours,then they hatch. But Shi found no hatchlings after that time. Stuck inside theireggshells were balls of cells without intestine, muscle, skin, or mouth...... At follow-up examinations, one to six months after the last injection,blood pressure in the individua...rs in the last 11 treatments. Four weeks after the first 2,000-microgram injection, a second2,000-microgram injection was made, increasing the tota...EPA Should Redirect Some Research on Toxic Airborne Particles
...riety of othersources. The standards were changed after several epidemiological studies foundassociations between exposure to the particles and serious health consequences,including the exacerbation of asthma and other respiratory tract diseases --which in some cases were leading to premature deaths. The...Echocardiography Is Effective In Measuring Microvascular Damage From Heart Attacks
...ce imaging atdetecting small blood vessel blockage after a heart attack, according toresearchers at Johns H...locked, preventing return of normal bloodflow even after the body recovers from a heart attack. This can put a patientat risk for later complications, such ......ium homeostasis during pregnancy and lactation and after the resumption of menses, a longitudinal compariso...rly in lactation at 2 mo postpartum (EL), and 5 mo after resumption of menses. Intestinal calcium absorption was determined from the enrichment of the first ...Crystal Structure Of The Archaeal Chaperonin Thermosome, A Protein-Folding Machine, Determined
...e to adopt their structure in a very short time after synthesis in the presence of a large number of other cellular components that could interfere with this process. Therefore a class of proteins, the chaperones, has evolved that rescues the folding intermediates from aggregation. A special......," Fred Betz, an NSFprogram officer, said recently after hearing Costerton and Davies talk abouttheir work. "It may be simple. It may be complex. But that's the next step." The agency has begun funding the next step--the development of chemicalmessages that would confuse the bacteria and usher in ...