Researchers at Pontifical Catholic University of Rio Grande do Sul have recently carried out a study aimed at evaluating people's perceptions of geometric features, personalities and emotions presented in video sequences with virtual humans. Their study, outlined in a paper pre-published on arXiv, merges computer science tools with psychology research practices.
* This article was originally published here
Friday 17 May 2019
New laws of robotics needed to tackle AI: expert
Decades after Isaac Asimov first wrote his laws for robots, their ever-expanding role in our lives requires a radical new set of rules, legal and AI expert Frank Pasquale warned on Thursday.
* This article was originally published here
* This article was originally published here
Nanoscale sculpturing leads to unusual packing of nanocubes
From the ancient pyramids to modern buildings, various three-dimensional (3-D) structures have been formed by packing shaped objects together. At the macroscale, the shape of objects is fixed and thus dictates how they can be arranged. For example, bricks attached by mortar retain their elongated rectangular shape. But at the nanoscale, the shape of objects can be modified to some extent when they are coated with organic molecules, such as polymers, surfactants (surface-active agents), and DNA. These molecules essentially create a "soft" shell around otherwise "hard," or rigid, nano-objects. When the nano-objects pack together, their original shape may not be entirely preserved because the shell is flexible—a kind of nanoscale sculpturing.
* This article was originally published here
* This article was originally published here
Sedimentary, dear Johnson: Is NASA looking at the wrong rocks for clues to Martian life?
In 2020, NASA and European-Russian missions will look for evidence of past life on Mars. But while volcanic, igneous rock predominates on the Red Planet, virtually the entire Earth fossil record comes from sedimentary rocks.
* This article was originally published here
* This article was originally published here
Helping robots remember: Hyperdimensional computing theory could change the way AI works
The Houston Astros' José Altuve steps up to the plate on a 3-2 count, studies the pitcher and the situation, gets the go-ahead from third base, tracks the ball's release, swings ... and gets a single up the middle. Just another trip to the plate for the three-time American League batting champion.
* This article was originally published here
* This article was originally published here
Dangerous pathogens use this sophisticated machinery to infect hosts
Gastric cancer, Q fever, Legionnaires' disease, whooping cough—though the infectious bacteria that cause these dangerous diseases are each different, they all utilize the same molecular machinery to infect human cells. Bacteria use this machinery, called a Type IV secretion system (T4SS), to inject toxic molecules into cells and also to spread genes for antibiotic resistance to fellow bacteria. Now, researchers at Caltech have revealed the 3-D molecular architecture of the T4SS from the human pathogen Legionella pneumophila with unprecedented details. This could in the future enable the development of precisely targeted antibiotics for the aforementioned diseases.
* This article was originally published here
* This article was originally published here
Black women more likely to die of breast cancer, especially in the South
When Felicia Mahone was 27, she felt her breast and found a mass. Breast cancer had killed nearly all the women in her family—her mother, two aunts and two cousins. Her doctor, though, downplayed the lump, assuring her everything would be all right.
* This article was originally published here
* This article was originally published here
Scientists capture first-ever video of body's safety test for T-cells
For the first time, immunologists from The University of Texas at Austin have captured on video what happens when T-cells—the contract killers of the immune system, responsible for wiping out bacteria and viruses—undergo a type of assassin-training program before they get unleashed in the body. A new imaging technique that allowed for the videos, described today in the journal Nature Communications, holds promise for the fight against autoimmune disorders such as Type 1 diabetes.
* This article was originally published here
* This article was originally published here
Sleep duration tied to adverse measures of glycemia
(HealthDay)—Self-reported short and long sleep are both associated with adverse measures of glycemia among adults with prediabetes, according to a study published online May 10 in Diabetes Care.
* This article was originally published here
* This article was originally published here
For many HIV+ women, daily survival takes precedence over viral suppression
According to scientists who study women infected with HIV, statistics often paint an impressionist view of the lives of these women that misses the granular detail that tells the real story. The imprecise big picture is that most of this population is doing a good job at suppressing the virus, but facts gathered on the ground show that many struggle with issues of daily living that can make taking a pill to keep HIV at bay difficult.
* This article was originally published here
* This article was originally published here
Americans increasingly open about mental health
(HealthDay)—Americans are becoming more positive about mental health, although some stigma remains, according to the results of a new poll released by the American Psychological Association (APA).
* This article was originally published here
* This article was originally published here
Researchers unravel mechanisms that control cell size
Working with bacteria, a multidisciplinary team at the University of California San Diego has provided new insight into a longstanding question in science: What are the underlying mechanisms that control the size of cells?
* This article was originally published here
* This article was originally published here
'Foldable' PC? Lenovo ThinkPad laptop screen bends in half like a book
Samsung has gained a lot attention lately for its Galaxy Fold hybrid smartphone/tablet, though given the recent display snags that have prompted a delay in the product's release, not necessarily for all the right reasons.
* This article was originally published here
* This article was originally published here
Study proposes new standards for safely performing 'Brazilian butt lift'
A new anatomic study highlights critical technical issues to ensure safe performance of the increasingly popular "Brazilian butt lift—a procedure using the patient's own fat to augment and improve the appearance of the buttocks. The study appears in the May issue of Plastic and Reconstructive Surgery, the official medical journal of the American Society of Plastic Surgeons (ASPS).
* This article was originally published here
* This article was originally published here
Research reveals insulin-producing beta cells may change function in diabetes
A revolutionary new study using only materials derived from humans has revealed that insulin-producing beta cells can change their function in diabetes—and that this change may be reversible.
* This article was originally published here
* This article was originally published here
Colorectal cancer incidence on the rise among young adults in several high-income countries
The incidence of colon and rectal cancer in adults younger than 50 years has increased substantially over the latest available 10-year period in several high-income countries, going against a decline or stabilisation trend in the incidence of colorectal cancers within the overall populations of high-income countries.
* This article was originally published here
* This article was originally published here
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