How the brain decides between effort and reward

Science Daily - Wed, 28/09/2016 - 7:02pm
In a new study, researchers investigated what parts of the brain may be involved in deciding if something is worth the effort. The team found a relevant pattern of activity in three areas of the brain, the supplementary motor area (SMA), dorsal anterior cingulate cortex (dACC) and putamen.
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No Man's Sky Under Investigation For False Advertising

Slashdot - Wed, 28/09/2016 - 6:48pm
No Man's Sky is one of the most talked about games this year. The game sees the protagonist explore the space and experience uncertain places. But its controversial promotional material may also have played an instrumental role in making the title a sleeper-hit success. Polygon reports: No Man's Sky's promotional material has come under fire since launch, and it's now the subject of an ongoing investigation. The U.K.-based Advertising Standards Authority (ASA) confirmed to Polygon that it's received "several complaints about No Man's Sky's advertising," which angry customers have criticized as misleading. "I can confirm we have received several complaints about No Man's Sky advertising and we have launched an investigation," the ASA told Polygon. A representative for the ASA declined to comment on the particulars of the investigation, but a thread on the No Man Sky's subreddit details some of the most prominent issues Steam users have with the game's store page, which they passed on to the organization. Screens and video on Steam suggest a different type of combat, unique buildings, "ship flying behaviour" and creature sizes than what's found in the actual game itself. The store page overall has also been criticized for showing No Man's Sky with higher quality graphics than can be attained in-game.

Read more of this story at Slashdot.

Categories: Science

Early onset menopausal symptoms could predict heart disease

Science Daily - Wed, 28/09/2016 - 6:44pm
Women who experience hot flashes and night sweats earlier in life are more likely to die from cardiovascular disease (CVD) when compared to women with later onset menopausal symptoms, according to research. Up to 80 percent of women experience menopausal symptoms, particularly hot flashes and night sweats, at some point during the menopause transition.
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If legalizing pot, consider health, not profits, analysis says

Science Daily - Wed, 28/09/2016 - 6:42pm
A new analysis of marijuana legislation offers a framework for states that are considering legalizing the drug and want to protect public health, rather than corporate profits.
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Moderate alcohol use linked to heart chamber damage, atrial fibrillation in new study

Science Daily - Wed, 28/09/2016 - 6:34pm
Researchers have found that even moderate alcohol consumption may change the structure of the heart in ways that increase the risk of atrial fibrillation.
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Implicit bias may help explain high preschool expulsion rates for black children

Science Daily - Wed, 28/09/2016 - 6:31pm
Preschool teachers and staff show signs of implicit bias in administering discipline, but the race of the teacher plays a big role in the outcome, according to new research. The results help explain why black students tend to be suspended at much higher rates than white students, the authors say.
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New insight into eye diseases

Science Daily - Wed, 28/09/2016 - 6:30pm
Many diseases that lead to blindness, such as glaucoma and macular degeneration, are caused by the death of certain cells in the human retina that lack the ability to regenerate. But in species such as zebrafish these cells, known as Muller glial cells (MGs), do serve as retinal stem cells that are capable of generating new cells. In a new study, a research team investigated whether the regenerative power of cells in zebrafish could be recreated in mammals, specifically mice.
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Researchers identify treatment target for blinding diseases

Science Daily - Wed, 28/09/2016 - 6:19pm
A common pathway involved in photoreceptor death has been identified in retinitis pigmentosa, advanced dry age-related macular degeneration and other retinal diseases, with early evidence of a possible halt to vision loss related to treatment of the pathway.
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Identifying ecstasy's dangerous path

Science Daily - Wed, 28/09/2016 - 6:17pm
In an important discovery in the battle against the United States’ growing drug epidemic, an economist has found the Carolinas could be a hotspot for the trafficking and production of the drug Ecstasy.
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Acupuncture reduces hot flashes for half of women, study finds

Science Daily - Wed, 28/09/2016 - 6:17pm
Hot flashes – the bane of existence for many women during menopause – can be reduced in frequency by almost half for about 50 percent of women over eight weeks of acupuncture treatment, according to scientists.
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D-Wave Systems previews 2000-qubit quantum processor

Kurzweil AI - Wed, 28/09/2016 - 6:14pm

D-Wave 2000-qubit processor (credit: D-Wave Systems)

D-Wave Systems announced Tuesday (Sept. 28, 2016) a new 2000-qubit processor, doubling the number of qubits over the previous-generation D-Wave 2X system. The new system will enable larger problems to be solved and performance improvements of up to 1000 times.

D-Wave’s quantum system runs a quantum-annealing algorithm to find the lowest points in a virtual energy landscape representing a computational problem to be solved. The lowest points in the landscape correspond to optimal or near-optimal solutions to the problem. The increase in qubit count enables larger and more difficult problems to be solved, and the ability to tune the rate of annealing of individual qubits will enhance application performance.

According to D-Wave, users will be able to tune the quantum computational process to solve problems faster and find more diverse solutions when they exist. They will have the ability to sample the state of the quantum computer during the quantum annealing process, which will power hybrid quantum-classical machine learning algorithms that were not possible before.

The system will also allow for combining quantum processing with classical processing, improving the quality of optimization and sampling results returned from the system.

D-Wave’s first users conference, being held on September 28–29 in Santa Fe, New Mexico, features speakers from Los Alamos National Laboratory, NASA, Lockheed Martin, the Roswell Park Cancer Center, Oak Ridge National Laboratory, USC, and D-Wave, and a number of quantum software and services companies.

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