A microscopic fungus infecting common eastern US grass, tall fescue, can significantly impact plant diversity and local ecosystems. The fungus alters the host plant's growth, making it more toxic to other herbivores and drought-resistant.
Scientists from NASA and Colorado State University present research on the link between water vapor and climate change, highlighting its significant impact on global warming. Water vapor's unique molecular structure and potential heat stored within it influence storm formation and atmospheric circulation.
The North Carolina Health Professions 1998 Data Book shows a 5.4% increase in doctors and a 19.2% rise in nurse practitioners, with the greatest growth in rural counties. However, disparities remain, with some counties having no dentists or just one dentist per 9,000 residents.
Researchers have found that smoke from forest fires practically shuts off the 'warm rain' processes that create rain in tropical clouds. The cloud tops must grow above the freezing level for an alternative mechanism to start producing rain. This study, based on TRMM data, provides direct evidence of the impact of smoke on rainfall.
Researchers at the University of Illinois have isolated and characterized an insulin gene from the marine mollusk Aplysia californica. The study reveals a unique peptide, the 'D' peptide, which is separated from the standard two-chain insulin structure by a 'C' peptide.
A study found that 80% of colonic bacteria contain a gene resistant to tetracycline, highlighting rapid spread of resistance genes. The discovery suggests that other resistance genes are also moving along with the tetracycline resistance gene.
The conference will focus on ibogaine's mechanism of action and clinical, cultural, and political issues surrounding its use. Leading experts in neuroscience, ethnography, and sociology will present on the compound's effects and potential applications.
A cluster of 256 Intel Pentium III microprocessors linked together has created the largest
Researchers have successfully synthesized a look-alike enzyme for hydrogenase, which could lead to an inexpensive and abundant supply of hydrogen. The new version contains 25 atoms instead of thousands found in natural enzymes, but still needs improvement to fully function as a catalyst.
A new questionnaire effectively screens primary care patients for sleep apnea, identifying nearly half of high-risk patients. A man with severe adult-onset rheumatoid arthritis also experienced remission after a stem-cell transplant from his healthy twin, believed to be the first case of its kind.
A study led by University of Southern California researchers found that tamoxifen therapy for breast cancer increases the risk of endometrial cancer by about 50 percent. The risk is higher in women who have previously used estrogens, are overweight, or have a history of estrogen replacement therapy.
NASA scientists find that jet aircraft add a few tens of parts per trillion of nitrogen oxides to the atmosphere, increasing ozone levels. However, the impact is too small to detect, but as air traffic increases, understanding these effects becomes crucial for global climate research.