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Science

Scientists Discover That Exercise Changes Your DNA 28

Posted by samzenpus
from the a-whole-new-you dept.
HughPickens.com writes The human genome is astonishingly complex and dynamic, with genes constantly turning on or off, depending on what biochemical signals they receive from the body. Scientists have known that certain genes become active or quieter as a result of exercise but they hadn't understood how those genes knew how to respond to exercise. Now the NYT reports that scientists at the Karolinska Institute in Stockholm have completed a study where they recruited 23 young and healthy men and women, brought them to the lab for a series of physical performance and medical tests, including a muscle biopsy, and then asked them to exercise half of their lower bodies for three months. The volunteers pedaled one-legged at a moderate pace for 45 minutes, four times per week for three months. Then the scientists repeated the muscle biopsies and other tests with each volunteer. Not surprisingly, the volunteers' exercised leg was more powerful now than the other, showing that the exercise had resulted in physical improvements. But there were also changes within the exercised muscle cells' DNA. Using technology that analyses 480,000 positions throughout the genome, they could see that new methylation patterns had taken place in 7,000 genes (an individual has 20–25,000 genes).

In a process known as DNA methylation, clusters of atoms, called methyl groups, attach to the outside of a gene like microscopic mollusks and make the gene more or less able to receive and respond to biochemical signals from the body. In the exercised portions of the bodies, many of the methylation changes were on portions of the genome known as enhancers that can amplify the expression of proteins by genes. And gene expression was noticeably increased or changed in thousands of the muscle-cell genes that the researchers studied. Most of the genes in question are known to play a role in energy metabolism, insulin response and inflammation within muscles. In other words, they affect how healthy and fit our muscles — and bodies — become. Many mysteries still remain but the message of the study is unambiguous. "Through endurance training — a lifestyle change that is easily available for most people and doesn't cost much money," says Sara Lindholm, "we can induce changes that affect how we use our genes and, through that, get healthier and more functional muscles that ultimately improve our quality of life."

+ - Colorado sued by neighboring states over legal pot-> 2

Submitted by SternisheFan
SternisheFan (2529412) writes "The attorneys general of Nebraska and Oklahoma sued Colorado in the U.S. Supreme Court on Thursday, arguing state-legalized marijuana from Colorado is improperly spilling across state lines.

The suit invokes the federal government's right to regulate both drugs and interstate commerce, and says Colorado's decision to legalize marijuana has been "particularly burdensome" to police agencies on the other side of the state line.

In June, USA TODAY highlighted the flow of marijuana from Colorado into small towns across Nebraska: felony drug arrests in Chappell, Neb., just 7 miles north of the Colorado border have skyrocketed 400% in three years.

"In passing and enforcing Amendment 64, the state of Colorado has created a dangerous gap in the federal drug control system enacted by the United States Congress. Marijuana flows from this gap into neighboring states, undermining plaintiff states' own marijuana bans, draining their treasuries, and placing stress on their criminal justice systems," says the lawsuit. "The Constitution and the federal anti-drug laws do not permit the development of a patchwork of state and local pro-drug policies and licensed distribution schemes throughout the country which conflict with federal laws.""

Link to Original Source
NASA

Kepler Makes First Exoplanet Discovery After Mission Reboot 12

Posted by samzenpus
from the look-what-we-found dept.
astroengine writes NASA's Kepler space telescope has detected its first new extrasolar planet after mission engineers were able to save the mission from a premature death after two of the exoplanet hunter's four stabilizing reaction wheels failed last year. Called "K2," the extended mission arose from an "innovative idea" that appears to have given the prolific telescope a new lease on life. "Last summer, the possibility of a scientifically productive mission for Kepler after its reaction wheel failure in its extended mission was not part of the conversation," said Paul Hertz, NASA's astrophysics division director at the agency's headquarters in Washington D.C. "Today, thanks to an innovative idea and lots of hard work by the NASA and Ball Aerospace team, Kepler may well deliver the first candidates for follow-up study by the James Webb Space Telescope to characterize the atmospheres of distant worlds and search for signatures of life."

+ - Kepler Makes First Exoplanet Discovery After Mission Reboot->

Submitted by astroengine
astroengine (1577233) writes "NASA’s Kepler space telescope has detected its first new extrasolar planet after mission engineers were able to save the mission from a premature death after two of the exoplanet hunter’s four stabilizing reaction wheels failed last year. Called “K2, the extended mission arose from an “innovative idea” that appears to have given the prolific telescope a new lease on life. “Last summer, the possibility of a scientifically productive mission for Kepler after its reaction wheel failure in its extended mission was not part of the conversation,” said Paul Hertz, NASA’s astrophysics division director at the agency’s headquarters in Washington D.C. “Today, thanks to an innovative idea and lots of hard work by the NASA and Ball Aerospace team, Kepler may well deliver the first candidates for follow-up study by the James Webb Space Telescope to characterize the atmospheres of distant worlds and search for signatures of life.”"
Link to Original Source
Blackberry

Review: The BlackBerry Classic Is One of the Best Phones of 2009 90

Posted by samzenpus
from the if-it-aint-broke dept.
Molly McHugh writes When Apple launched the iPhone in 2007, and I owned a BlackBerry Curve. To me, my BlackBerry was close to being the absolute perfect smartphone. Today, BlackBerry revealed the Classic, a phone that is designed to make me—and everyone who owned a BlackBerry before the touchscreen revolution—remember how much we loved them.

+ - The BlackBerry Classic is one of the best phones of 2009->

Submitted by Molly McHugh
Molly McHugh (3774987) writes "When Apple launched the iPhone in 2007, and I owned a BlackBerry Curve. To me, my BlackBerry was close to being the absolute perfect smartphone. Today, BlackBerry revealed the Classic, a phone that is designed to make me—and everyone who owned a BlackBerry before the touchscreen revolution—remember how much we loved them."
Link to Original Source
Crime

FBI Confirms Open Investigation Into Gamergate 310

Posted by samzenpus
from the looking-into-it dept.
v3rgEz writes In a terse form letter responding to a FOIA request, the FBI has confirmed it has an open investigation into Gamergate, the loose but controversial coalition of gamers calling for ethics in gaming journalism — even as some members have harassed and sent death threats to female gaming developers and critics.
Earth

Satellite Captures Glowing Plants From Space 33

Posted by samzenpus
from the getting-that-glow dept.
sciencehabit writes About 1% of the light that strikes plants is re-emitted as a faint, fluorescent glow—a measure of photosynthetic activity. Today, scientists released a map of this glow as measured by the Orbiting Carbon Observatory-2, a NASA satellite launched in July with the goal of mapping the net amount of carbon in the atmosphere. The map reveals that tropical rainforests near the equator are actively sucking up carbon, while the Corn Belt in the eastern United States, near the end of its growing season, is also a sink. Higher resolution fluorescence mapping could one day be used to help assess crop yields and how they respond to drought and heat in a changing climate.

+ - Skeptics would like media to stop calling science deniers "skeptics"->

Submitted by Layzej
Layzej (1976930) writes "Prominent scientists, science communicators, and skeptic activists, are calling on the news media to stop using the word “skeptic” when referring to those who refuse to accept the reality of climate change, and instead refer to them by what they really are: science deniers. “Not all individuals who call themselves climate change skeptics are deniers. But virtually all deniers have falsely branded themselves as skeptics. By perpetrating this misnomer, journalists have granted undeserved credibility to those who reject science and scientific inquiry.”"
Link to Original Source
China

Investigation: Apple Failing To Protect Chinese Factory Workers 159

Posted by samzenpus
from the HR-needs-to-be-better dept.
mrspoonsi writes with the findings of an investigation into working conditions at a factory that makes Apple products. Poor treatment of workers in Chinese factories which make Apple products has been discovered by an undercover BBC Panorama investigation. Filming on an iPhone 6 production line showed Apple's promises to protect workers were routinely broken. It found standards on workers' hours, ID cards, dormitories, work meetings and juvenile workers were being breached at the Pegatron factories. Apple said it strongly disagreed with the programme's conclusions. Exhausted workers were filmed falling asleep on their 12-hour shifts at the Pegatron factories on the outskirts of Shanghai. One undercover reporter, working in a factory making parts for Apple computers, had to work 18 days in a row despite repeated requests for a day off. Another reporter, whose longest shift was 16 hours, said: "Every time I got back to the dormitories, I wouldn't want to move. Even if I was hungry I wouldn't want to get up to eat. I just wanted to lie down and rest. I was unable to sleep at night because of the stress."
Security

Critical Git Security Vulnerability Announced 122

Posted by samzenpus
from the protect-ya-neck dept.
An anonymous reader writes Github has announced a security vulnerability and has encouraged users to update their Git clients as soon as possible. The blog post reads in part: "A critical Git security vulnerability has been announced today, affecting all versions of the official Git client and all related software that interacts with Git repositories, including GitHub for Windows and GitHub for Mac. Because this is a client-side only vulnerability, github.com and GitHub Enterprise are not directly affected. The vulnerability concerns Git and Git-compatible clients that access Git repositories in a case-insensitive or case-normalizing filesystem. An attacker can craft a malicious Git tree that will cause Git to overwrite its own .git/config file when cloning or checking out a repository, leading to arbitrary command execution in the client machine. Git clients running on OS X (HFS+) or any version of Microsoft Windows (NTFS, FAT) are exploitable through this vulnerability. Linux clients are not affected if they run in a case-sensitive filesystem....Updated versions of GitHub for Windows and GitHub for Mac are available for immediate download, and both contain the security fix on the Desktop application itself and on the bundled version of the Git command-line client."

+ - Critical Git security vulnerability announced

Submitted by Anonymous Coward
An anonymous reader writes "Github has announced a security vulnerability and has encourage users to update their Git clients as soon as possible. The blog post reads in part: "A critical Git security vulnerability has been announced today, affecting all versions of the official Git client and all related software that interacts with Git repositories, including GitHub for Windows and GitHub for Mac. Because this is a client-side only vulnerability, github.com and GitHub Enterprise are not directly affected. The vulnerability concerns Git and Git-compatible clients that access Git repositories in a case-insensitive or case-normalizing filesystem. An attacker can craft a malicious Git tree that will cause Git to overwrite its own .git/config file when cloning or checking out a repository, leading to arbitrary command execution in the client machine. Git clients running on OS X (HFS+) or any version of Microsoft Windows (NTFS, FAT) are exploitable through this vulnerability. Linux clients are not affected if they run in a case-sensitive filesystem....Updated versions of GitHub for Windows and GitHub for Mac are available for immediate download, and both contain the security fix on the Desktop application itself and on the bundled version of the Git command-line client.""
Yahoo!

Marissa Mayer's Reinvention of Yahoo! Stumbles 187

Posted by samzenpus
from the best-laid-plans dept.
schnell writes The New York Times Magazine has an in-depth profile of Marissa Mayer's time at the helm of Yahoo!, detailing her bold plans to reinvent the company and spark a Jobs-ian turnaround through building great new products. But some investors are saying that her product focus (to the point of micromanaging) hasn't generated results, and that the company should give up on trying to create the next iPod, merge with AOL to cut costs and focus on the unglamorous core business that it has. Is it time for Yahoo! to "grow up" and set its sights lower?
Sony

US Links North Korea To Sony Hacking 176

Posted by samzenpus
from the who's-to-blame dept.
schwit1 writes Speaking off the record, senior intelligence officials have told the New York Times, CNN, and other news agencies that North Korea was "centrally involved" in the hack of Sony Pictures Entertainment. It is not known how the US government has determined that North Korea is the culprit, though it is known that the NSA has in the past penetrated North Korean computer systems. Previous analysis of the malware that brought down Sony Pictures' network showed that there were marked similarities to the tools used in last year's cyber-attack on South Korean media companies and the 2012 "Shamoon" attack on Saudi Aramco. While there was speculation that the "DarkSeoul" attack in South Korea was somehow connected to the North Korean regime, a firm link was never published.
Education

Startup Helps You Build Your Very Own Picosatellite On a Budget 21

Posted by samzenpus
from the to-infinty-and-beyond dept.
Zothecula writes A Glasgow-based startup is reducing the cost of access to space by offering "satellite kits" that make it easier for space enthusiasts, high schools and universities alike to build a small but functional satellite for as little as US$6,000 and then, thanks to its very small size, to launch for significantly less than the popular CubeSats.

The use of anthropomorphic terminology when dealing with computing systems is a symptom of professional immaturity. -- Edsger Dijkstra

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