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Women scientists in primatology are poorly represented at symposia organized by men, but receive equal representation when symposia organizers are women or mixed groups, according to an analysis published in PLOS ONE. 

The authors examined female participation at major scientific conferences for primate scientists and anthropologists, where symposia are largely by invitation but posters and other talks are initiated by participants. They found that within the field of primatology, women give more posters than talks, whereas men give more talks than posters. Their analysis also shows that symposia organized by men on average included half the number of women authors (29%) than symposia organized by women or both men and women (58 to 64%). 


While in deep sleep, our hippocampus sends messages to our cortex and changes its plasticity, possibly transferring recently acquired knowledge to long-term memory.

How exactly is this done? Scientists from the Max Planck Institute for Biological Cybernetics have developed a multimodal methodology called "neural event-triggered functional magnetic resonance imaging" (NET-fMRI) and presented the very first results obtained using it in experiments with both anesthetized and awake, behaving monkeys.


The dwarf planet Makemake is about two thirds of the size of Pluto and farther from the Sun - but closer than Eris, the most massive so-called dwarf planet in the Solar System after the confusing reconfiguration by the International Astronomical Union that said Pluto was not a planet but then was, only a special non-planet along with others.

Like Eris, but unlike Pluto, Makemake has no atmosphere, making it even less sensical as a planet.


Researchers have unveiled a new way to use sunlight to produce steam and other vapors without heating an entire container of fluid to the boiling point. The research could lead to inexpensive, compact devices for purification of drinking water, sterilization of medical instruments and sanitizing sewage. 

Metallic nanoparticles - so small that 1,000 would fit across the width of a human hair - absorb large amounts of light, resulting in a dramatic rise in their temperature. That ability to generate heat has fostered interest among scientists in using nanoparticles in a range of applications. These include photothermal treatment of certain forms of cancer, laser-induced drug release and nanoparticle-enhanced bioimaging.
A new approach to invisibility cloaking goes beyond transformation optics and those tiresome Harry Potter analogies. It is instead for us at sea to shield floating objects, like oil rigs and ships, from rough waves and is based on the influence of the ocean floor's topography on the various "layers" of ocean water.

Reza Alam, assistant professor of mechanical engineering at the University of California, Berkeley, will describe at the American Physical Society's (APS) Division of Fluid Dynamics (DFD) meeting how the variation of density in ocean water can be used to cloak floating objects against incident surface waves
Work-hour caps for surgical residents designed to lessen complication rates have not accomplished that. Instead, the period after work-hour limits were introduced saw an uptick in complication rates , according to findings which raise concerns that limiting residents' work hours isn't really a benefit.

The analysis was designed to evaluate the patient safety impact of rules limiting the hours worked by residents, a measure introduced in 2003. The goal of the limits, a maximum of 88 hours per week, was to reduce the risk of errors and injury related to resident fatigue.