What do cheese, jeans and wine all have in common? They get better with time. New research from Florida State University finds that's also true of teenagers' attitudes toward law enforcement as they become adults.
* This article was originally published here
Monday, 8 April 2019
TossingBot can grab objects and toss them in specified bins
A group at Google with assistance from teams at Columbia and Princeton Universities and MIT has developed a robot that is able to grab a single object from among other objects in a box and toss it into a specified bin. In their paper uploaded to the arXiv preprint server, the team describes the challenges of the work and how well it turned out.
* This article was originally published here
* This article was originally published here
Mystery of negative capacitance in perovskite solar cells solved
On the verge of outcompeting current thin-film solar cells, perovskite solar cells seem to embody an ideal solar cell with high efficiency and low cost. However, they have poor long-term stability, which remains a challenge. Related to this are peculiar phenomena occurring in perovskite materials and devices, where very slow microscopic processes cause a kind of "memory effect."
* This article was originally published here
* This article was originally published here
Cold plasma can kill 99.9% of airborne viruses, study shows
Dangerous airborne viruses are rendered harmless on-the-fly when exposed to energetic, charged fragments of air molecules, University of Michigan researchers have shown.
* This article was originally published here
* This article was originally published here
High rate of sex before age 13 among boys from metropolitan areas
Using information from two national surveys, researchers from Johns Hopkins Medicine and the Guttmacher Institute have found that in some metropolitan areas, more than a quarter of young, African American men reported having sexual intercourse before age 13, and for about 45 percent of them, the sex was either unwanted or experienced with "mixed feelings."
* This article was originally published here
* This article was originally published here
Advance boosts efficiency of flash storage in data centers
MIT researchers have designed a novel flash-storage system that could cut in half the energy and physical space required for one of the most expensive components of data centers: data storage.
* This article was originally published here
* This article was originally published here
Selecting the best features for phishing attack detection algorithms
In recent decades, phishing attacks have become increasingly common. These attacks allow attackers to obtain sensitive user data, such as passwords, usernames, credit card details, etc., by tricking people into disclosing personal information. The most common type of phishing attack is email scams in which users are led to believe that they need to give their details to an established or trusted entity, while they are, in fact, sharing this data with someone else.
* This article was originally published here
* This article was originally published here
Carbon lurking in deep ocean threw ancient climate switch, say researchers
A million years ago, a longtime pattern of alternating glaciations and warm periods dramatically changed, when ice ages suddenly became longer and more intense. Scientists have long suspected that this was connected to the slowdown of a key Atlantic Ocean current system that today once again is slowing. A new study of sediments from the Atlantic bottom directly links this slowdown with a massive buildup of carbon dragged from the air into the abyss. With the system running at full speed, this carbon would have percolated back into the air fairly quickly, but during this period it just stagnated in the depths. This suggests that the carbon drawdown cooled the planet—the opposite of the greenhouse effect we are seeing now, as humans pump carbon into the atmosphere. But if the current keeps slowing now, we should not expect it to help us out by storing our emissions; possibly to the contrary. The study, led by researchers at Columbia University's Lamont-Doherty Earth Observatory, appears this week in the journal Nature Geoscience.
* This article was originally published here
* This article was originally published here
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