Researchers used a large database of ecological information to analyze over 100 animal populations in the wild. They found that generalist feeding organisms exhibit short cycle periods, typically four times as long as an animal's lifespan, while those that feed on one species have longer cycles.
In big cities like San Francisco, women value men with financial resources, while in smaller cities, emotional connections take precedence. Women's preferences vary by location and city size.
Recent clinical trials found that low-dose insulin injections do not delay or prevent type 1 diabetes in high-risk individuals, contrary to earlier animal studies and pilot trials. However, the trials revealed valuable insights into immune and metabolic markers for assessing diabetes risk and identifying potential prevention strategies.
The Q TRAP system combines triple quadrupole and ion trap mass spectrometry, enabling researchers to identify more proteins and metabolites with higher confidence and accuracy. This new technology is expected to increase productivity in drug discovery through improved metabolite identification.
Internal documents expose tobacco industry's secret lists of control advocates and researchers, aiming to discredit them. Industry agencies also conducted clandestine research on public health groups, including secretly recording meetings.
This study estimates the direct and indirect costs of prostate cancer in California for 1998, finding that hospitalization costs account for almost three-fifths of total costs. Prostate cancer adds significant costs to patients with comorbid conditions, such as heart disease or respiratory illness.
A new clinical trial has shown that a short-term use of a new drug can safely arrest the progression of Type 1 diabetes by targeting disease-causing T-cells. Patients who took the drug continued to produce their own insulin and needed less supplemental hormone, leading to improved metabolic control and reduced complications.
A team of researchers has demonstrated the first wireless communication system built entirely on a computer chip, breaking the need for wires to transmit information within the chip. This technology could lead to faster chips, tiny microphones, motion detectors, and other devices.
Tumor vaccines via dendritic cells aim to enhance the immune response against cancer cells Researchers found that dendritic cells can stimulate the production of antibodies and T-cells specific to cancer antigens
Directed antisense expression has been shown to moderate feeding behavior and weight gain in various animal models. This regulatory effect is attributed to the suppression of genes involved in energy homeostasis, ultimately leading to changes in food intake and body weight.
Researchers at Columbia University have discovered a correlation between earthquakes and ocean tides, with seismic activity increasing during tidal lows. This study suggests that the seafloor crust is breathing with the ocean tides, allowing for regular tidal scheduling of seismic energy release.
A new peptide developed by researchers at Yale University has shown promise in promoting new growth in injured spinal cords. The study confirmed that a molecule called Nogo blocks axon regeneration, but also demonstrated how to block its action with the peptide, allowing nerve fibers to grow back and restoring mobility to laboratory rats.
Researchers investigate NEMO submersion in virus-prone boys to identify potential risks and benefits. The study aims to provide a deeper understanding of the relationship between viral exposure and physiological responses.
Scientists warn of significant global impacts from glacier decline, with effects on agriculture, water supplies, and ecosystems. Glacier melting may lead to both serious problems and short-term increases in water availability.
A new study by Pamela Paxton found that organizations with strong connections to the larger community promote democracy, while isolated groups have a negative impact. Countries with more of these connected groups tend to score higher on measures of democracy.
The NASA spacecraft TIMED observes the global reaction of the upper atmosphere to solar activity, helping scientists understand why some solar events have significant geospace impact. Preliminary data from TIMED will be featured at the Spring 2002 American Geophysical Union meeting, May 31, in Washington, D.C.
A new study from Ohio State University found that students in racially diverse schools are more likely to form segregated friendships. The research suggests that schools can promote cross-racial friendships by encouraging extracurricular activities that bring together students of different races.
A new study suggests that global warming could lead to a shift in forest growth patterns, with temperate regions like North America potentially losing market share to subtropical regions. As temperatures rise, softwood species may migrate north and take over hardwood forests, leading to economic losses for growers.
Scientists have developed new methods to characterize diamonds, allowing them to link the stones' properties to their mine of origin. This study aims to shed light on plate tectonics, the Earth's formation, and processes deep in the Earth.
Women with irregular periods are at increased risk of developing osteoporosis later in life, according to a recent study. The research found that nearly all women with premature ovarian failure reported changes in their menstrual cycle, highlighting the importance of early evaluation and treatment.
Alzheimer's disease prevalence is projected to double by 2050 due to a growing population of older adults. A new report suggests that even with significant treatment breakthroughs, the burden on healthcare systems will increase threefold.
Scientists will study the properties of materials in low-gravity conditions to improve industry's high-tech products. Bubbles trapped in solid samples can cause internal cracks, diminishing a material's strength.
A stress detector has been developed to continuously monitor hydrocortisone levels in saliva, allowing for real-time stress evaluation. The device could aid military troops, pilots, and emergency personnel in maintaining combat readiness and making informed decisions.
A study published in the American Journal of Public Health found that tobacco industry youth anti-smoking programs were designed to serve the industry's political aims, rather than reducing smoking rates. The programs aimed to gather information on youth behavior and attitudes to inform marketing strategies.