A team of scientists discovered the oldest known dinosaur fossils in Madagascar, dating back to 230 million years ago. The fossils were found by a young local boy named Mena who led researchers to a hill with a mound of bones, sparking an eight-year dig that yielded spectacular results.
A study by University of Michigan researchers found that living in segregated cities with high levels of poverty is associated with higher mortality rates, particularly for cancer. The analysis revealed a strong correlation between segregation and increased susceptibility to illness and death among both black and white populations.
A study of 11 young men found that sleep debt increased glucose concentrations in the blood, while altering cortisol levels and thyroid hormone regulation. The research suggests that persistent sleep debt may exacerbate age-related chronic disorders.
A team of paleontologists has discovered jaws from two of the oldest dinosaurs ever found, along with eight other prehistoric animals, in a rich bed of fossils in Madagascar. The discovery provides a unique glimpse into the mid-late Triassic Period and illuminates scientific understanding of this era.
Growing neurons have a limited time to create connections before risking a 'clockwork death' due to lack of life-sustaining chemical signals. Researchers discovered an intermediate control mechanism, called en passant, which helps prevent miswiring by providing support as axons pass through the target region.
The Clemson University Genomics Institute is leading a three-year project with international partners to identify all 40,000 genes in rice and locate their position on 12 chromosomes.
A landmark study found that preschool educational interventions provided to children from birth to kindergarten had positive effects lasting until age 21. Young adults who received high-quality child care scored higher on mental development tests, reading, mathematics achievement, and were more likely to attend college.
Researchers at Purdue University will study the three-dimensional structure of several types of viruses, including yellow fever and hepatitis C viruses, using a combination of X-ray crystallography and molecular biology techniques. The goal is to develop drugs that prevent infection by similar viral pathogens.
A recent study by Penn State researchers found that severe poverty can lead to violent behavior in psychiatric patients. The study surveyed 293 patients and found that 23% showed violent behavior after discharge, with 14% committing a violent act during the follow-up period.
A new U-M study examines 11 college campuses' efforts to promote racial harmony and identifies areas for improvement. The study's findings highlight the importance of sustaining programs after grants expire, as communication barriers can persist without continued effort.
A new botulinum toxin type B medication has shown significant improvements in pain, disability, and disease severity in cervical dystonia patients. The treatment's benefits lasted for 12-16 weeks with no serious adverse side effects reported.
A CU study of ice-age sediment cores found that temperature fluctuations in the warm Atlantic Ocean were as large as those seen during the last ice age, raising concerns about future climate change. The research suggests that human-induced changes to ocean circulation could trigger global climate impacts.
A Mayo Clinic study found a significant increase in migraine headaches among women between 1980 and 1994, with the highest incidence among young women. The study suggests that stress-related factors, such as increased work demands and single-parent households, may contribute to this trend.
A recent Yale Cancer Center study reveals that many experienced cancer genetic counselors would pursue genetic testing for BRCA or HNPCC mutations despite concerns about discrimination. However, the majority would not bill insurance companies or use aliases, and would only share test results with physicians.
A large study by the Fred Hutchinson Cancer Center found no association between vasectomy and increased prostate cancer risk. Additionally, dietary supplementation with vitamins C and E was linked to a lower risk of prostate cancer. Men who took zinc supplements also saw a significant reduction in risk.
A University of Michigan team found that applying repeated strain during tissue development increases the expression of key structural protein genes and improves cell organization, leading to stronger tissues. This approach could improve engineered tissues' strength and potentially be used to investigate disease mechanisms.
Gamma-ray bursts remain a mystery despite over 2,500 recorded events and numerous burst sources identified. Scientists caution against interpreting data carefully due to potential systematic errors in measurement systems.