A new study shows that iron-bearing rocks that formed at the ocean floor 3.2 billion years ago carry unmistakable evidence of oxygen. The only logical source for that oxygen is the earliest known example of photosynthesis by living organisms, say geoscientists.
Kids who are taught to reason about the mental states of others are more likely to use deception to win a reward, according to new research.
Repeating aloud boosts verbal memory, especially when you do it while addressing another person.
A new discovery documents the intricate arrangement of the muscles and ligaments that controlled the main feathers of the wing of an ancient bird, supporting the notion that at least some of the most ancient birds performed aerodynamic feats in a fashion similar to those of many living birds.
American placebo: New analysis of chronic pain drug trials shows increasing placebo responses over time, in the US only
Rising placebo responses may play a part in the increasingly high failure rate for clinical trials of drugs designed to control chronic pain caused by nerve damage, suggests a new report. Surprisingly, however, the analysis of clinical trials conducted since 1990 found that the increase in placebo responses occurred only in trials conducted wholly in the US; trials conducted in Europe or Asia showed no changes in placebo responses over that period.
A rabbit virus currently being developed for cancer therapy can be paired with one of several existing drugs to deliver a more potent punch to a deadly type of brain tumor cell, researchers have found.
A potential treatment for a serious clotting condition that can strike patients who receive heparin to treat or prevent blood clots may lie within reach by elucidating the structure of the protein complex at its root.
Researchers have proposed a strategic approach for information spreading via Facebook using cancer screenings as a health intervention. They use Facebook to identify social clusters and opinion leaders and mathematically determine the best way to spread information, using health information as the subject.
New work demonstrates an improved three-dimensional energy storage device constructed by trapping functional nanoparticles within the walls of a foam-like structure made of nanocellulose. The foam is made in one step and can be used to produce more sustainable capacitor devices with higher power density and faster charging abilities compared to rechargeable batteries. This development paves the way towards the production of lightweight, flexible, and high-power electronics for application in wearable devices, portable power sources and hybrid vehicles.
Children's self-esteem is linked to the behavior of who is considered the most powerful parent within the household, new research suggests.
HIV particles are effectively trapped by the cervicovaginal mucus from women who harbor a particular vaginal bacteria species, Lactobacillus crispatus. The findings could lead to new ways to reduce or block vaginal transmission of HIV and other sexually transmitted infections.
A new study on Homo naledi, the extinct human relative whose remains were discovered in a South African cave and introduced to the world last month, suggests that although its feet were the most human-like part of its body, H. naledi didn't use them to walk in the same way we do. Analysis of 107 foot bones indicates that H. naledi was well adapted for standing and walking on two feet, but that it also was likely comfortable climbing trees.
Researchers have a new genome screen that has identified partner molecules of cell-waste disposal proteins. They applied their new method to identify other clock partners that target a multipurpose cell nucleus receptor for disposal.
Pools of fatty molecules self-assemble around treated water droplets to create a cell-like bioreactor that could offer substantial advantages for carrying out complex synthesis processes, say scientists.
The marijuana extract tetrahydrocannabinol (THC) isn't effective in preventing nausea and vomiting after surgery in patients at high risk of this common complication, reports a study.
How long do neutrons live? The answer could change how we think everything from the cosmos to coffee cups. Yet, scientists don’t agree on the neutron longevity. The disagreement is fanned by the limitations of today’s instruments. Now, a highly efficient detector is helping to resolve the puzzle.
In 2014, the Majorana Demonstrator started its search for neutrinoless double beta decay. Observation of this decay would have profound implications for our understanding of physics, including providing hints as to how the Big Bang produced more matter than it did antimatter.
A new genus and species has been discovered on a remote, mountainous island in Indonesia. This new discovery is the third new genus described by this group of scientists since 2012, and identifies a rodent with features never seen by the scientific community before.
All relatives of individuals with colorectal cancer are at increased risk for this cancer, regardless of the age of diagnosis of the index patient in the family, according to a new study.
By providing a novel taxonomic 'cybercatalog' of the southern African flower-loving (apiocerid) flies, the authors demonstrate how the network of taxonomic knowledge can be made available through links to online data providers. The information is not only available to the reader, who follows the links, but also to machines making use of the growing number of digital online resources.
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