Molecular biologist explains how THC kills cancer completely | Intellihub News

Molecular biologist explains how THC kills cancer completely
From Compultense University in Madrid, Spain, Dr. Christina Sanchez has been studying the anti-tumor effects of THC, the main psychoactive component of cannabis, for over a decade. She delivers sound information that explains exactly how THC kills cancer cells entirely – without adverse effects to healthy cells.

Her research is an addition to other’s work, such as British scientist, Wai Liu, an oncologist at the University of London’s St. George’s medical school. Liu’s research also reveals how THC has ‘potent anti-cancer activity,’ and can significantly ‘target and switch off’ pathways that allow cancers to grow.

Liu points out that pharmaceutical companies spend billions on drugs that do the very same thing, while the cannabis plant does it naturally. In the following video, Dr. Sanchez explains exactly how THC does the dirty work of eliminating cancer cells by activating the body’s own cannabinoid receptors, creating endocannabinoids. What’s more, is cannabis can do this without any psychoactive effects.

“There’s quite a lot of cancers that should respond quite nicely to these cannabis agents,” Liu said. “If you talk about a drug company that spent billions of pounds trying to develop these new drugs that target these pathways, cannabis does exactly the same thing – or certain elements of cannabis compounds do exactly the same thing – so you have something that is naturally produced which impacts the same pathways that these fantastic drugs that cost billions also work on.”


http://intellihub.com/molecular-biologist-explains-thc-kills-cancer-completely/

Columbia University Fired Two Eminent Public Intellectuals. Here’s Why It Matters.

columbia_university_statue_cc_img_0
Columbia University

About a month ago, The New York Times’s Nicholas Kristof wrote a much-discussed columncalling for academics to take on a greater role in public life. Most professors, he lamented, “just don’t matter in today’s great debates,” having instead burrowed into rabbit holes of hyper-specialization. PhD programs, he wrote, “have fostered a culture that glorifies arcane unintelligibility while disdaining impact and audience.” Professors, Kristof pleaded, “don’t cloister yourselves like medieval monks—we need you!”


Exquisite, Disturbing Objects From 500 Years of Human Anatomical Science

For centuries people have been simultaneously fascinated by what’s inside the human body and squeamish about getting close enough to a cadaver to actually find out. “There’s this tension between the desire to know, and what it takes to get that knowledge,” said David Jones, a historian of science at Harvard Medical School and one of the curators of a new exhibit on the history of anatomy at Harvard’s Collection of Historical Scientific Instruments.

The Body of Knowledge exhibit, which opened last week and runs through December 5, illustrates some of the ways in which people have wrestled with that tension through the ages. Science, culture, and religion have all played a role.

“People have been opening up and breaking apart human bodies for a very, very long time,” said Katherine Park, a science historian at Harvard and another of the exhibit’s organizers. “But it’s meant different things in different times and different places.”

Honeybees reveal that evolution is stranger than you ever realized

Honeybees reveal that evolution is stranger than you ever realizedSEXPAND

Darwin’s idea of natural selection is simple. Good mutations are passed on, because the animals who have them will survive to reproduce. But how do you pass on those good mutations in honeybee colonies, where most bees are sterile workers who never have babies? A group of researchers decided to find out.

Photo of a perfect worker bee, with nectar in her belly and pollen on her legs, by Alex Wild

York University biologist Amro Zayed worked with a team of Canadian and Saudi Arabian researchers to unravel a genetic mystery that has long intrigued evolutionary biologists. Worker bees are the most important part of any bee colony, gathering food, building the hive, taking care of babies, and maintaining the temperature inside the hive at what Zayed calls a “balmy 33 degrees Celsius.” If a worker has a mutation that makes it better at finding food in a new region, evolutionary reason would predict that mutation ought to be passed along to the next generation of workers. But how can it be, if only the queen bee is having babies?

Honeybees reveal that evolution is stranger than you ever realized
http://io9.com/why-honeybees-are-a-strange-example-of-darwinian-evolut-1538074226

Facebook just did something amazing to crummy meme sites. And what they do next might shock everyone

Wow. Facebook just did something amazing to crummy meme sites. And what they do next might shock everyoneThe social media networking site Facebook recently rejiggered the algorithm it uses to determine what its users see highlighted on their “news feeds,” the center column of shared links, pictures and posts that determines most of what a user sees at the site.

There is a decent chance that this change will in large part determine what you read on the Internet in 2014. Maybe not “you,” the regular Salon reader or relative of the author, but “you” the person who clicked on this story because someone you know shared it on Facebook or Twitter. The purpose of the Facebook change was to encourage the sharing of more “high-quality” news content — that is, to make sure you are more likely to see it when “high-quality” news content is shared, because Facebook’s news feed algorithms do as much hiding as highlighting — and the result seems to have been an immediate decline in the traffic of all the sites that spent 2013 mastering the art of blowing up on Facebook. (Well, all of them but one, but we’ll get to that.)

There is an entire ecosystem of these sites — one industry publication uses the term “viral publishers,” which works as well as anything else — and if you use Facebook regularly you probably clicked on a link from one of them at some point in 2013. Elite Daily, Distractify, ViralNova and the grandaddy of them all, Upworthy, the site that essentially invented and perfected the form in the space of a year. Upworthy’s headlines may be mockable (I Thought I Knew How to Goad Readers Into Clicking on Something Stupid, but What I Learned Next Changed Everything), but they definitely seemed to work.

Tim Berners-Lee: We need to re-decentralize the Web


Twenty-five years after the Web’s inception, its creator has urged the public to reengage with its original design: a decentralized Internet that remains open to all.

Speaking with Wired editor David Rowan at an event launching the magazine’s March issue, Tim Berners-Lee said that although part of this is about keeping an eye on for-profit Internet monopolies such as search engines and social networks, the greatest danger is the emergence of a balkanized Web.

“I want a Web that’s open, works internationally, works as well as possible, and is not nation-based,” Berners-Lee told the audience, which included Martha Lane Fox, Jake Davis (aka Topiary) and Lily Cole. He suggested one example to the contrary: “What I don’t want is a Web where the Brazilian government has every social network’s data stored on servers on Brazilian soil. That would make it so difficult to set one up.”

It’s the role of governments, startups, and journalists to keep that conversation at the fore, he added, because the pace of change is not slowing—it’s going faster than ever before. For his part, Berners-Lee drives the issue through his work at the Open Data Institute, World Wide Web Consortium, and World Wide Web Foundation, but also as an MIT professor whose students are ”building new architectures for the Web where it’s decentralized.” On the issue of monopolies, Berners-Lee did say that it’s concerning to be “reliant on big companies and one big server,” something that stalls innovation, but that competition has historically resolved these issues and will continue to do so.

Key quantum computing components squeezed onto a single chip

Researchers are a little bit closer to a practical quantum computer after a University of Bristol team discovered how to produce and control photons–a key component of quantum computing–on the same chip as other essential parts. They published their work in Nature Photonics today.

Before now, researchers had developed parts that produce and detect photons, AKA the particles that make up light, but they were always located on their own chips. In order to make a computer cost and energy efficient, it’s important that all the components be packed onto one chip.

Key quantum computing components squeezed onto a single chip
http://gigaom.com/2014/01/30/key-quantum-computing-components-squeezed-onto-a-single-chip/

The Best “Entry Level” Science Fiction Books to Convert Your Friends

A lot of the greatest science fiction and fantasy books are not for newbies. They can be daunting for new readers, because they assume you’ve already read a lot of science fiction and fantasy. But what are the best “entry level” science fiction and fantasy books? We asked some top editors and writers, and here are their picks.

Top image: Childhood’s End by Arthur C. Clarke.

There’s been a lot of talk about the need for “entry level” science fiction and fantasy recently, spurred by writers like John Scalzi and editors like Patrick Nielsen Hayden. The great strength of science fiction and fantasy is the wealth of ideas the genre contains, and the long-running dialogue among authors, and between authors, editors, and readers. But that strength can also create a huge barrier to entry for new readers.

So we asked a dozen of our favorite writers and editors to name their favorite “entry level” SF books, including Scalzi and Nielsen Hayden. Here’s what they told us!

Patrick Nielsen Hayden (executive editor with Tor Books)

From SF books published in the last ten or fifteen years, my off-the-cuff answer would be Robert Charles Wilson’s Spin. The events that make this novel science fiction are so vast and inexplicable that, for quite a lot of the “story time,” “science” is as much at a loss to explain them as normal people are. Ultimately there are some (well-crafted) expository lumps of astrophysics, relativity, etc., but these come along only after the entire scientific world has spent quite a few years being as baffled as a normal person would be. This gives Wilson the space to tell a story grounded in the emotional reactions of believable, present-day people to mind-boggling changes in the cosmic scheme of things, a story that can be read and enjoyed unimpeded by the need to swallow big gulps of the usual scenario-justifying science-fictional expository doubletalk. By the time small doses of dense SFnal exposition are actually necessary, even the kind of readers who are usually thrown out of a normal SF novel by the “as you know, Bob” conversation in Chapter Two are so immersed in the human drama that they take it in effortlessly.

The Best “Entry Level” Science Fiction Books to Convert Your Friends
http://io9.com/the-best-entry-level-science-fiction-books-to-convert-1510802842

Facebook will lose 80% of users by 2017, say Princeton researchers

Facebook has spread like an infectious disease but we are slowly becoming immune to its attractions, and the platform will be largely abandoned by 2017, say researchers at Princeton University.

The forecast of Facebook’s impending doom was made by comparing the growth curve of epidemics to those of online social networks. Scientists argue that, like bubonic plague, Facebook will eventually die out.

The social network, which celebrates its 10th birthday on 4 February, has survived longer than rivals such as Myspace and Bebo, but the Princeton forecast says it will lose 80% of its peak user base within the next three years.

John Cannarella and Joshua Spechler, from the US university’s mechanical and aerospace engineering department, have based their prediction on the number of times Facebook is typed into Google as a search term. The charts produced by the Google Trends service show Facebook searches peaked in December 2012 and have since begun to trail off.

“Ideas, like diseases, have been shown to spread infectiously between people before eventually dying out, and have been successfully described with epidemiological models,” the authors claim in a paper entitled Epidemiological modelling of online social network dynamics.

Facebook will lose 80% of users by 2017, say Princeton researchers
http://www.theguardian.com/technology/2014/jan/22/facebook-princeton-researchers-infectious-disease

Facebook’s Teenage Exodus, In One Chart

When did Facebook stop being cool? Was it when the social network let in high schoolers? Or when moms and grandmas started saturating it? Regardless, the company has been worried about teenagers leaving the world’s largest social network for hipper alternatives, such as Snapchat andTumblr. On Wednesday, a marketing firm quantified this mass exodus, finding the number of teenagers have dropped by 3 million over three years.

An iStrategyLabs report found teenage users ages 13 to 17 have declined 25% within the last three years to 9.8 million in January 2014. Meanwhile, the 55-and-older subset have taken to the social network, with more than 28 million users in that demographic, an 80% growth over the same period.

Use among high school students is also down 59% to 3 million users from 7.3 million in 2011. Facebook’s bread and butter, college students, aren’t sticking to the network either, with user numbers declining 59% to 4.8 million users from 11.7 million. However, with early adopters graduating, the alumni base has grown 64.6%, from 36.4 million to 60 million.

We’ve reached out to iStrategyLabs to learn more about the methodology used in this study. We will update this post with any additional information we receive.

Facebook’s Teenage Exodus, In One Chart
http://www.fastcompany.com/3024963/fast-feed/facebooks-teenage-exodus-in-one-chart