According to a study published Monday in the Proceedings of the National Academy of Sciences, brains can't really fit into the categories of "male" or "female" -- their distinguishing features actually vary across a spectrum. Researchers led by University of Tel-Aviv studied brain scans of some 1,400 individuals and could not find a single pattern that distinguishes between a male brain and a female brain.
Researchers for the first time have attempted to measure all the material leaving and entering a mountain range over more than a million years and discovered that erosion caused by glaciation during ice ages can, in the right circumstances, wear down mountains faster than plate tectonics can build them.
Many human gene variants have evolved specifically to protect older adults against neurodegenerative and cardiovascular diseases, thus preserving their contributions to society, report University of California, San Diego School of Medicine researchers in the November 30 issue of Proceedings of the National Academy of Sciences.
Can any cancer cell form another tumor, or is it only select cancer stem cells that give rise to new cancer cells? The answer, a new study finds, is both.
If Pleistocene megafauna -- mastodons, mammoths, giant sloths and others -- had not become extinct, humans might not be eating pumpkin pie and squash for the holidays, according to an international team of anthropologists.
Army ants construct complex bridges from their own bodies to span gaps and create shortcuts in the floor of the tropical forests of Central America, according to a new study published in the Proceedings of the National Academy of Sciences.
Army ants construct complex bridges from their own bodies to span gaps and create shortcuts in the floor of the tropical forests of Central America, according to a new study published in the Proceedings of the National Academy of Sciences.
Non-healing chronic wounds are a major complication of diabetes. The reasons why diabetic wounds are resistant to healing are not fully understood, and there are limited therapeutic agents that could accelerate or facilitate their repair. University of Notre Dame researchers have discovered a compound that accelerates diabetic wound healing, which may open the door to new treatment strategies.
The readings were collected during brain surgery as the conscious patients played an investment game, demonstrating rapid dopamine release encodes crucial information. The findings have implications for Parkinson’s disease and disorders such as depression and addiction.
Scientists from the Florida campus of The Scripps Research Institute (TSRI) have shown for the first time how a previously unknown process works to promote infection in a number of dangerous viruses, including dengue, West Nile and Ebola.
A tooth fossil, believed to be about 110,000 years old, has yielded DNA from a vanished branch of the human tree, mysterious cousins called the Denisovans. The tooth was found in a cave in Siberia in 2010. Scientists describe their newest Denisovan DNA analysis in Proceedings of the National Academy of Sciences.
Using large-scale computer modeling, researchers have shown the effects of confinement on macromolecules inside cells – and taken the first steps toward simulating a living cell, a capability that could allow them to ask “what-if” questions impossible to ask in real organisms.
Global energy demand from developed nations has an adverse impact on freshwater resources in less developed nations according to a new study.
Researchers at University of California, San Diego School of Medicine, Ludwig Cancer Research and Isis Pharmaceuticals demonstrate a commercially feasible way to use RNA to turn the CRISPR-Cas9 system on and off as desired — permanently editing a gene, but only temporarily activating CRISPR-Cas9. The study is published November 16 by Proceedings of the National Academy of Sciences.
Since the first laser was invented in 1960, they’ve always given off heat — either as a useful tool, a byproduct or a fictional way to vanquish intergalactic enemies. University of Washington researchers are the first to solve a decades-old puzzle — figuring out how to make a laser refrigerate water and other liquids under real-world conditions.
A recently published study from two Iowa State University scientists shows that a gene found only in a single plant species can increase protein content when introduced into staple crops.
New research from Argonne, Scripps Research Institute and Rice University now allows researchers to manipulate nature’s biosynthetic machinery to produce more effective antibiotics and cancer-fighting drugs.
Analysis results in greater understanding of important biological traits related to crop drought tolerance
Analysis results in greater understanding of important biological traits related to crop drought tolerance
Results of a new laboratory study by Johns Hopkins Kimmel Cancer Center researchers suggests that some rare “missense” mutations in the HER2 gene are apparently not — on their own — capable of causing breast cancer growth or spread.
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