A new study published in the journal Science suggests that low-mass stars called red supergiants may die explosively rather than fade away quietly. This discovery has significant implications for our understanding of nucleosynthesis, stellar structure, and the evolution of stars.
A new study suggests that a caspase-inhibiting drug could help delay ALS symptoms and prolong life. Researchers found that mice treated with zVAD-fmk lived 22% longer than untreated littermates, providing proof of principle for this potential treatment.
A study led by the National Institutes of Health (NIH) has identified key changes in surface proteins of the hepatitis C virus (HCV) that enable it to evade the immune system. The research found that these changes occur early in the infection process and can determine whether a person will develop chronic or acute HCV disease.
Hawaii's dry forests require more than just grazing removal to regenerate; invasive species like non-native rodents and fountain grass also play a significant role. Active management is necessary to control these invaders and reintroduce native species, say researchers.
Researchers discovered a robust immune response in adolescents infected with HIV, suggesting they may benefit from aggressive early treatment. The study found higher levels of CD8 naïve T lymphocytes, which could mount an effective immune response against the virus.
A new study has revealed that Italian wolves have maintained a pure population despite facing threats such as competition for food and space. The researchers analyzed mitochondrial DNA samples from over 100 Italian wolves, finding unique sequences that indicate the species has remained genetically distinct from feral dogs.
Researchers at UT Southwestern Medical Center have found evidence of brain-stem damage in Gulf War veterans who experience dizziness, suggesting that the symptoms are caused by chemical and nerve agent exposure. The study also highlights a higher risk of death in motor vehicle accidents among these veterans.
Researchers have identified conserved non-coding sequences (CNSs) in the human genome that regulate gene expression, using comparative analysis techniques with mice. These regulatory sequences were found to be present across various mammals, indicating their importance in biological functions.
Researchers found that Florida scrub-jays nesting along roadsides die at a higher rate than those on non-road territories, with up to half of new breeders dying in their first two years. The roadside death rate is particularly high for young fledglings and newly arrived breeders.
Researchers found that airborne sea salt particles undergo a chemical reaction in daylight to release chlorine molecules, which can influence ozone levels. This discovery suggests that sea salt particles may play a significant role in determining the levels of certain greenhouse gases and air pollutants in coastal urban areas.
A study of 99 mothers found that those who smoked during pregnancy had toddlers with higher levels of impulsivity, risk-taking, and rebelliousness. The researchers speculate that reducing maternal smoking could lead to a decrease in childhood negativity.
The decoded genetic information contains an estimated 10-15,000 genes linked to diseases such as kidney disease, cancer, and hypertension. Researchers can now mine this data for advances in basic understanding of life and applications like diagnosing and treating diseases.
A study of 294 adolescents found that having an adult mentor significantly reduces the likelihood of engaging in high-risk behaviors such as carrying a weapon, using illicit drugs, and smoking. Mentorship appears to be an effective strategy in reducing certain risk behaviors and their consequences.
Researchers found nearly 1,000 cave species in the continental US, with over 60% living in a single county or cave. Protecting land above caves is crucial to save these species from disruptions to vegetation and drainage basins.
A recent study updated the classic 'Stigler's Diet Problem' to reflect current dietary recommendations and prices. The results show that a woman's diet is approximately $115.40 cheaper than a man's, with daily costs of $535.27 for women and $651.27 for men.
The National Reading Panel concludes that a combination of teaching phonics, word sounds, and providing feedback on oral reading is the most effective way to teach children to read. The panel's rigorous scientific review identifies systematic phonics instruction as a key component of classroom reading instruction.
The journal features novel approaches to analyzing complex peptides, such as pramlintide, and developing injectable implants for sustained drug release. Liposomes are also explored as carriers for antimicrobial peptides like Leucinostatin A.