Updated: 43 min 37 sec ago
A team of scientists has described the most exceptionally preserved fossil bird discovered to date, in a newly published article. The new specimen from the rich Early Cretaceous Jehol Biota (approximately 131 to 120 million years old) is referred to as Eoconfuciusornis, the oldest and most primitive member of the Confuciusornithiformes, a group of early birds characterized by the first occurrence of an avian beak.
Most older Americans drink alcohol. Given that this segment of the population is projected to almost double by 2050, reaching 112 million, in the future, there will likely be many more older drinkers in the United States than currently. Importantly, older individuals are more sensitive to alcohol’s effects than their younger counterparts, and are also more likely to take prescription medications that can interact negatively with alcohol, potentially leading to falls and other injuries. This study examined trends in drinking status among U.S. adults 60 years of age and older.
Investigators have reported the discovery of a new gene that is associated with susceptibility to a common form of brain pathology called Tau that accumulates in several different conditions, including Alzheimer's disease, certain forms of dementia and Parkinsonian syndromes as well as chronic traumatic encephalopathy that occurs with repeated head injuries.
Researchers have revealed that declining plant diversity -- from habitat loss, human use, and other environmental pressures -- causes plants to flower earlier, and that the effects of diversity loss on the timing of flowering are similar in magnitude to the effects of global warming. The finding could have a powerful influence on the way scientists study ecosystem changes and measure the effects of global warming.
Moderate drinking is associated with a lower risk of several, but not all, cardiovascular diseases, finds a large study of UK adults. The finding that moderate drinking is not universally associated with a lower risk of all cardiovascular conditions suggests a more nuanced approach to the role of alcohol in prevention of cardiovascular disease is necessary.
Neurosurgeons hoping to successfully navigate the rapidly changing healthcare industry must advance their strategies and adapt new ways of thinking in order to continue to thrive in an evolving environment, say authors of a new report.
Inactive teens have weaker bones than those who are physically active, according to a new study.
A team of scientists has developed a new way to sequence genomes, which can assemble the genome of an organism, entirely from scratch, dramatically cheaper and faster.
One day, patients may be able to monitor their body's response to cancer therapy just by having their blood drawn. A new study has taken an important step in that direction by measuring a panel of cancer proteins in rare, individual tumor cells that float in the blood.
The near-paranoia related to Zika leading up to the 2016 Rio Games could have been avoided by heeding the lessons of previous epidemics, argues a new study.
Astronomers have identified a record breaking brown dwarf (a star too small for nuclear fusion) with the 'purest' composition and the highest mass yet known. The object, known as SDSS J0104+1535, is a member of the so-called halo -- the outermost reaches -- of our galaxy, made up of the most ancient stars.
A special kind of small sulfur-rich proteins, the metallothioneins, have an extraordinarily large capability for binding heavy metals. An international team of scientists has now discovered that the marine common periwinkle, which is widely considered a delicacy, contains the largest version of the protein found yet, with one additional cadmium-binding domain and a one-third higher detoxification capacity. This feature may help the snail survive in heavy-metal-polluted environments.
Carbapenems are among the 'antibiotics of last resort' and can fight infections for which other drugs have long lost their effectiveness. However, even carbapenem-resistant pathogenic strains have emerged over the last decades.
Scientists are evaluating the effectiveness of a new nanocoating for dental implants to reduce the risk of peri-implantitis.
The molecular causes of diseases such as Parkinson's need to be understood as a first step towards combating them. Chemists recently succeeded in analyzing what happens when selective mutations of the alpha-synuclein protein occur -- a protein that is closely linked to Parkinson's disease.
The fact that men are overrepresented in psoriasis registers and consume more psoriasis care have long led researchers to believe that the common skin disease disproportionately affects men. A unique study with 5,438 Swedish psoriasis patients now reveals that women have a statistically significant lower incidence of severe psoriasis compared to men.
Through experimental and computational tests, new research expands on the theory of virus surface hydrophobicity. By being slightly water-repellent, the outer layers of proteins in virus capsids affect how it interacts with cells and the environment. Understanding this more can improve vaccine production and virus detection.
A new project aims to create an efficient, simple-to-manufacture oxygen-evolution catalyst that pairs well with semiconductors for advanced solar cells. The technique could lead to unique catalysts for other applications.
Researchers have developed a new algorithm that predicts when a user will leave a mobile game. This information is useful for game studios so that they can design strategies to maintain the player's interest.
Researchers in the United States have developed a computer program that can simultaneously detect cancer and identify where in the body the cancer is located, from a patient's blood sample.