The study provides new evidence on the timing and migration path of early hominids out of Africa. Researchers used Earth's magnetic field reversals to determine a more precise age for the Erk-el-Ahmar site, which dates back around 300,000 years.
A study published in Women's Health Issues found that nutrition education significantly lowered the risk of cardiovascular disease in premenopausal women. The research showed that a six-month nutrition education program led to a reduction in fat intake and improved body composition, reducing the risk of heart disease.
A University of Cincinnati geologist has found that genera appearing after mass extinctions survived for longer periods than those that emerged at other times. The trend is attributed to their generalist characteristics, which allowed them to adapt to new geographic and environmental distributions.
Middle-aged women with obesity, stress, financial struggles, and certain medical conditions are more likely to experience daily functional limitations. A national survey of 16,000 women aged 40-55 found that these factors significantly impact physical function.
A GSA panel will explore critical questions about water usage, including who owns a given resource and how to prioritize uses. The dialogue aims to integrate scientific and religious perspectives on global sustainability.
Researchers aim to identify genetic differences that make people more susceptible to environmental hazards, with a focus on cancer development and birth defects. The consortium will use genomic approaches to monitor gene expression and predict individual risk based on genetic profile and environmental exposures.
Researchers studying eBay data identified four trends that explain price fluctuations in online auctions: the weekend effect, picture effect, reputation score effect, and auction length effect. These factors impact final prices of rare coin transactions on eBay.
Researchers analyzed growth bands in Antarctic scallop shells to understand climate change, finding a long-term warming trend since the early 1950s. The study also reveals seasonal temperature variations and the impact of glacial meltwater on coastal waters.
Recent research reveals a mix of natural and human-induced changes in Florida Bay, with a significant increase in the mussel species Brachidontes exustus and a decline in molluscan diversity. Understanding natural variability is crucial to restore ecosystems to their natural state.
A new compound has been developed that offers intense cooling properties without the taste or smell of mint. The compound is 35 times more powerful than mint and lasts twice as long, making it ideal for a range of consumer products.
A study of 60 older women found that those who were physically active reported higher quality of life and better physical health. The research revealed that even those living in assisted care facilities benefited from increased activity levels.
The USGS is studying the Chesapeake Bay Impact Structure to understand its influence on groundwater. Scientists are examining the composition, age, and structure of crystalline basement rocks to learn more about the impact event's effects.
Researchers have made a breakthrough discovery about the development of rod and cone photoreceptors, the light-sensitive cells in the retina that initiate vision. The study found that the retinal protein Nrl acts as a 'molecular switch,' signaling cells to develop into rods rather than cones.
Researchers analyzed sound waves from the Solar and Heliospheric Observatory to map the temperature and flow structure beneath sunspots. The study revealed fast-moving streams of hot plasma converging into a gigantic vortex that penetrates the solar surface.
Researchers found that PP-188 reduced crisis time by nine hours and crisis duration by 16 hours in patients taking hydroxyurea. In children under 15, the reduction was even more significant at 21 hours.
Researchers found that compound PP188 shortened crisis duration, particularly in patients taking hydroxyurea and children. The study showed a significant reduction in pain disappearance within a week for those treated with PP188 compared to placebo.
A two-year study of postmenopausal monkeys found tibolone improved bone mineral density while reducing cardiovascular risks compared to estrogen-based treatments. However, it may offer advantages in breast and uterine safety over other options.
Researchers found evidence of advanced stone tool technology and symbolic thinking in Africa, challenging the long-held assumption that modern human behavior emerged later. The discovery of 28 bone tools at Blombos Cave suggests that 'behavioral modernity' first evolved in Africa around 35,000 years ago.
Researchers studied coral outbreaks off the island of Curacao, finding high concentrations of metals and human pathogens near major oil refineries. The team suggests that environmental stresses caused by pollution may be weakening corals' resistance to bacterial infection.
Researchers found that CD4 cells help mediate damage during ischemia, and two specific molecules, CD28 and IFN-gamma, were identified as participating in the injury process. This challenges current ideas of T cell function and may lead to new treatments for conditions like strokes and heart attacks.
A Mayo Clinic study found that prophylactic mastectomy reduced the risk of breast cancer in women with BRCA1 and BRCA2 mutations by 89.5% to 100%. The study followed 26 high-risk women for 13.4 years without developing breast cancer, despite predicted risks of 6-9 cases.
A new database using Geographic Information System (GIS) allows geologists to interpret large amounts of data more easily. The system enables scientists to query and analyze data over a large area in various ways, leading to new insights into the tectonic history of regions. This advancement in science helps understand the Earth's regi...
Researchers at the Max Planck Institute developed a theory to explain lexical selection and form encoding in spoken word production. The theory proposes two major processing components: lexical selection and form encoding, which can be completed within two-thirds of a second.
Researchers found that prostate cancer patients who underwent seed implantation (brachytherapy) experienced more urinary, sexual, and bowel problems compared to those treated with high-quality conformal external-beam radiation. The procedure's invasive nature may contribute to the higher side effects.