Paper Girls Is the Perfect Comic for Your ’80s Nostalgia Trip

Wired News - Wed, 05/10/2016 - 11:00am
Brian K. Vaughan's '80-set comic book series, now a year old, is a vibrant, re-readable sci-fi series about friendship, time-travel, and rad bikes. The post Paper Girls Is the Perfect Comic for Your '80s Nostalgia Trip appeared first on WIRED.
Categories: Science

San Francisco’s Iconic Fog Sure Looks Stunning From Above

Wired News - Wed, 05/10/2016 - 11:00am
The Golden Gate Bridge is pretty. But nothing is quite as gorgeous as the fog. The post San Francisco's Iconic Fog Sure Looks Stunning From Above appeared first on WIRED.
Categories: Science

On @Jack’s One Year Anniversary, Twitter Remains a Mess

Wired News - Wed, 05/10/2016 - 11:00am
Jack Dorsey took over as CEO of Twitter one year ago today. And very little has changed. The post On @Jack's One Year Anniversary, Twitter Remains a Mess appeared first on WIRED.
Categories: Science

To Help Cool the Climate, Add Aerosol

Wired News - Wed, 05/10/2016 - 11:00am
Opinion: As counterintuitive as it seems, deliberately injecting sufficient aerosol into the upper atmosphere to keep global temperatures in check would very clearly save lives. The post To Help Cool the Climate, Add Aerosol appeared first on WIRED.
Categories: Science

'Alien Megastructure' Star Keeps Getting Stranger

Space.com - Wed, 05/10/2016 - 11:00am
Newly analyzed observations by NASA's planet-hunting Kepler space telescope show that the star KIC 8462852 — whose occasional, dramatic dips in brightness still have astronomers scratching their heads — has also dimmed overall during the last few years.
Categories: Science

Firefly Space Systems Furloughs Staff After Investor Backs Out

Space.com - Wed, 05/10/2016 - 10:17am
Firefly Space Systems, a Texas company developing a small launch vehicle, has furloughed its entire staff after an investor backed out, forcing the firm to consider alternative vehicle concepts or even a sale of the company.
Categories: Science

What's Out There? 'Star Men' Doc Tackles Life Questions Through Science

Space.com - Wed, 05/10/2016 - 10:09am
The documentary "Star Men" follows a reunion of four prominent astronomers, and takes a compassionate look at aging, death and humanity's search for meaning.
Categories: Science

Messier 78 Nebula - Visible vs. Infrared Views Reveals Hidden Stars | Video

Space.com - Wed, 05/10/2016 - 10:00am
The European Southern Observatory's Visible and Infrared Survey Telescope for Astronomy (VISTA) captured imagery of the the nebula and it acts like a "dustbuster" revealing new stars.
Categories: Science

Indonesia Wants To Criminalize Memes

Slashdot - Wed, 05/10/2016 - 10:00am
While the United States has the First Amendment to justify the spread of memes that may ridicule political figures for example, the Indonesian government doesn't. In fact, it is looking to criminalize internet users for posting memes. The Daily Dot reports via Jakarta Post: Its Electronic Information and Transactions Law (ITE) punishes any electronic media communication that incites fear or embarrassment under its defamation article. The public has continuously called for the article's removal, but instead Indonesia is introducing more restrictions to freedom of expression. Posting memes, texts, pictures, or videos would be punishable if found to have a defamatory or slanderous tone. According to the Indonesian government, this provision stands to prevent and control cyberbullying. But it can further be used as a political tool against opposition during elections. Since its implementation in 2008, 200 people have been prosecuted according to data from the Southeast Asia Freedom of Expression Network. Among the most notable cases, was the prosecution of Prita Mulyasari in 2009 for complaining about Omni International Hospital services on an online mailing list.

Read more of this story at Slashdot.

Categories: Science

'Vacationauts': Space Tourism Posters for the Final Frontier (Gallery)

Space.com - Wed, 05/10/2016 - 9:44am
The world's first multimedia space advertising campaign encourages people who vacation in Florida to add some space to their fun in the sun by watching a rocket launch.
Categories: Science

Become a 'Vacationaut'! New Ad Campaign Launches to Boost Space Tourism

Space.com - Wed, 05/10/2016 - 9:44am
Space Florida, a state-run space development agency, has teamed up with Paradise Advertising to launch the world's first multimedia space advertising campaign.
Categories: Science

Hurricane Matthew Swirls Toward US in New Satellite Photos

Space.com - Wed, 05/10/2016 - 9:23am
On Tuesday (Oct. 4), NASA's Terra satellite captured the swirling clouds of Hurricane Matthew blanketing Haiti, the Dominican Republic, Puerto Rico and much of eastern Cuba.
Categories: Science

Boeing CEO Vows To Beat Elon Musk To Mars

Slashdot - Wed, 05/10/2016 - 7:00am
An anonymous reader quotes a report from Bloomberg: Boeing Chief Executive Officer Dennis Muilenburg sketched out a Jetsons-like future at a conference Tuesday, envisioning a commercial space-travel market with dozens of destinations orbiting the Earth and hypersonic aircraft shuttling travelers between continents in two hours or less. And Boeing intends to be a key player in the initial push to send humans to Mars, maybe even beating Musk to his long-time goal. "I'm convinced the first person to step foot on Mars will arrive there riding a Boeing rocket," Muilenburg said at the Chicago event on innovation, which was sponsored by the Atlantic magazine. Like Musk's SpaceX, Boeing is focused on building out the commercial space sector near earth as spaceflight becomes more routine, while developing technology to venture far beyond the moon. The Chicago-based aerospace giant is working with the National Aeronautics and Space Administration to develop a heavy-lift rocket called the Space Launch System for deep space exploration. Boeing and SpaceX are also the first commercial companies NASA selected to ferry astronauts to the International Space Station. Boeing built the first stage for the Saturn V, the most powerful U.S. rocket ever built, which took men to the moon. Nowadays, Muilenburg sees space tourism closer to home "blossoming over the next couple of decades into a viable commercial market." The International Space Station could be joined in low-earth orbit by dozens of hotels and companies pursuing micro-gravity manufacturing and research, he said. Muilenburg said Boeing will make spacecraft for the new era of tourists. He also sees potential for hypersonic aircraft, traveling at upwards of three times the speed of sound.

Read more of this story at Slashdot.

Categories: Science

New catheter lets doctors see inside arteries for first time

Kurzweil AI - Wed, 05/10/2016 - 5:24am

Image-guided catheter with a camera the size of a grain of salt (credit: Avinger)

A new safer catheter design that allows cardiologists to see inside arteries for the first time and remove plaque from only diseased tissue has been used by interventional cardiologists at UC San Diego Health.

The new image-guided device, Avinger’s Pantheris, allows doctors to see and remove plaque simultaneously during an atherectomy — a minimally invasive procedure that involves cutting plaque away from the artery and clearing it out to restore blood flow.

Left: OCT imaging fiber on cutter allows for seeing the layers and disease. Center: the torque shaft, cutter window, and apposition balloon prove the direction and precision to avoid disruption of layers. Right: the cutter and nose-cone allow for capturing and removing only diseased tissue. (credit: Avinger)

The new technology treats patients suffering from the painful symptoms of peripheral artery disease (PAD), a condition caused by a build-up of plaque that blocks blood flow in the arteries of the legs and feet, preventing oxygen-rich blood from reaching the extremities. Patients with PAD frequently develop life threatening complications, including heart attack and stroke; in some severe cases, patients may even face amputation.

PAD affects nearly 20 million adults in the United States and more than 200 million globally.

“Peripheral artery disease greatly impacts quality of life, with patients experiencing cramping, numbness and discoloration of their extremities,” said Mitul Patel, MD, cardiologist at UC San Diego Health. “This new device is a significant step forward for the treatment of PAD with a more efficient approach for plaque removal and less radiation exposure to the doctor and patient.”

Pantheris allows interventional cardiologists to see the layers and disease (left) and remove just the disease (right) (credit: Avinger)

X-ray technology was previously used during similar procedures, but those images are not as clear and do not allow for visualization inside the blood vessel. The new catheter, with a fiber optic camera the size of a grain of salt on the tip, is fed through a small incision in the groin that does not require full anesthesia. Once inside, the interventional cardiologist is able to see exactly what needs to be removed without damaging the artery wall, which can cause further narrowing.

Pantheris was approved by the FDA in March 2016. So far, cardiologists at UC San Diego Health have used the new catheter on 10 patients undergoing an atherectomy procedure, with successful results.

Avinger | PML0290-D Pantheris Animation

Abstract of Utility of Image-Guided Atherectomy for Optimal Treatment of Ambiguous Lesions by Angiography

Peripheral endovascular interventions have been limited by multiple shortcomings, including difficulty in assessment of the 3-dimensional nature of obstructive plaque within the vasculature with only contrast angiography and 2-dimensional fluoroscopy. Herein, we present a case of pseudodissection seen angiographically post CTO crossing, which was accurately assessed as eccentric plaque using OCT imaging and treated using an OCT-guided directional atherectomy device, preventing bail-out stenting.

Categories: Science

The Genius Behind ThatMexicanThing.com? It Wasn’t the Clinton Campaign

Wired News - Wed, 05/10/2016 - 4:24am
The savviest online move of the vice-presidential debate seemed like some classic HRC get-out-the-youth tactics, but it turned out to be a lone wolf move. The post The Genius Behind ThatMexicanThing.com? It Wasn't the Clinton Campaign appeared first on WIRED.
Categories: Science

The Vice Presidential Debate Was a Lot More Fun on Twitter

Wired News - Wed, 05/10/2016 - 3:52am
On TV, the vice presidential debate was a snoozer. Twitter told the real story. The post The Vice Presidential Debate Was a Lot More Fun on Twitter appeared first on WIRED.
Categories: Science

Genetically engineered peptides on 2D nanosheets form bio-nano interfaces

Kurzweil AI - Wed, 05/10/2016 - 3:51am

A top view of GrBP5 nanowires on a 2-D surface of graphene (credit: Mehmet Sarikaya/Scientific Reports)

Engineers at the University of Washington have created genetically engineered peptides that self-assemble into arrays of nanowires on two-dimensional nanosheets (single-layer graphene and molybdenum disulfide) to relay information across a bio-nano interface — a first step towards fully self-assembled future biomedical and electro-optical bionanoelectronic devices.

Arrays of peptides could provide organized scaffolds for functional biomolecules, enabling nanoscale bioelectronics interfaces. And designed peptides could be incorporated with metal ions or nanoparticles with specific physical characteristics, thus fine-tuning 2D device performance for chemical and biological sensors.

A bridge between biology and technology

“Bridging this divide would be the key to building the genetically engineered biomolecular solid-state devices of the future,” said UW professor Mehmet Sarikaya in the Departments of Materials Science & Engineering, senior author of an open-access paper published Sept. 22 in Scientific Reports.

The UW team is also planning to develop genetically engineered peptides with specific chemical and structural properties. Their ideal peptide would change the physical properties of synthetic materials and respond to that change. That way, it would transmit “information” from the synthetic material to other biomolecules — bridging the chemical divide between biology and technology.

The peptides function through molecular recognition — the same principles that underlie biochemical interactions such as an antibody binding to its specific antigen or protein binding to DNA.

A schematic showing GrBP5 peptide self-organization with a series of surface processes on graphene: binding, diffusion and self-organization (credit: Yuhei Hayamizu et al./Scientific Reports)

In exploring the properties of 80 genetically selected peptides — which are not found in nature but have the same chemical components as peptides in all proteins — the researchers discovered that one peptide, GrBP5, showed promising interactions with the semimetal graphene. They tested GrBP5’s interactions with several other 2-D nanomaterials that “could serve as the metals or semiconductors of the future,” Sarikaya said.

Their experiments revealed that GrBP5 spontaneously organized into ordered nanowire patterns on graphene. With a few mutations, GrBP5 also altered the electrical conductivity of a graphene-based device, the first step toward transmitting electrical information from graphene to cells via peptides.

New bio-optoelectronic devices

Sarikaya’s team also modified GrBP5 to produce similar results on semiconductor material molybdenum disulfide (MoS2) and other materials* by converting a chemical signal to an optical signal. And they computationally predicted how different arrangements of GrBP5 nanowires would affect the electrical conduction or optical signal properties of each material.

A top view image of GrBP5 nanowires on a 2-D surface of molybdenum disulfide (credit: Mehmet Sarikaya/Scientific Reports)

The researchers are also seeking a peptide that could interact with materials such as gold, titanium, and even a mineral in bone and teeth.

Funded by the National Science Foundation, the UW, the National Institutes of Health, and the Japan Science and Technology Agency, the research is the focus of a new endeavor funded by the National Science Foundation’s Materials Genome Initiative. UW’s CoMotion is also working with Amazon to develop nano-sensors to detect early stages of pancreatic cancer.

* Other semiconducting 2D transition metal dichalcogenides (WSe2, WS2, MoSe2) along with insulating hBN, all with unique electronic and optical properties, were also tested.

Abstract of Bioelectronic interfaces by spontaneously organized peptides on 2D atomic single layer materials

Self-assembly of biological molecules on solid materials is central to the “bottom-up” approach to directly integrate biology with electronics. Inspired by biology, exquisite biomolecular nanoarchitectures have been formed on solid surfaces. We demonstrate that a combinatorially-selected dodecapeptide and its variants self-assemble into peptide nanowires on two-dimensional nanosheets, single-layer graphene and MoS2. The abrupt boundaries of nanowires create electronic junctions via spatial biomolecular doping of graphene and manifest themselves as a self-assembled electronic network. Furthermore, designed peptides form nanowires on single-layer MoS2 modifying both its electric conductivity and photoluminescence. The biomolecular doping of nanosheets defined by peptide nanostructures may represent the crucial first step in integrating biology with nano-electronics towards realizing fully self-assembled bionanoelectronic devices.

Categories: Science

'Great Pacific Garbage Patch' Far Bigger Than Imagined, Aerial Survey Shows

Slashdot - Wed, 05/10/2016 - 3:30am
An anonymous reader quotes a report from The Guardian: The vast patch of garbage floating in the Pacific Ocean is far worse than previously thought, with an aerial survey finding a much larger mass of fishing nets, plastic containers and other discarded items than imagined. A reconnaissance flight taken in a modified C-130 Hercules aircraft found a vast clump of mainly plastic waste at the northern edge of what is known as the "great Pacific garbage patch," located between Hawaii and California. The density of rubbish was several times higher than the Ocean Cleanup, a foundation part-funded by the Dutch government to rid the oceans of plastics, expected to find even at the heart of the patch, where most of the waste is concentrated. The heart of the garbage patch is thought to be around 1m sq km (386,000 sq miles), with the periphery spanning a further 3.5m sq km (1,351,000 sq miles). The dimensions of this morass of waste are continually morphing, caught in one of the ocean's huge rotating currents. The north Pacific gyre has accumulated a soup of plastic waste, including large items and smaller broken-down micro plastics that can be eaten by fish and enter the food chain. Following a further aerial survey through the heart of the patch on Sunday, the Ocean Cleanup aims to tackle the problem through a gigantic V-shaped boom, which would use sea currents to funnel floating rubbish into a cone. A prototype of the vulcanized rubber barrier will be tested next year, with a full-sized 100km (62-mile) barrier deployed by 2020 if trials go well. "Normally when you do an aerial survey of dolphins or whales, you make a sighting and record it," said Boyan Slat, the founder of the Ocean Cleanup. "That was the plan for this survey. But when we opened the door and we saw the debris everywhere. Ever half second you see something. So we had to take snapshots -- it was impossible to record everything. It was bizarre to see that much garbage in what should be pristine ocean."

Read more of this story at Slashdot.

Categories: Science

Examining the social networks of sharks

Science Daily - Wed, 05/10/2016 - 2:42am
Researchers studied the “social networks” of sand tiger sharks and found they spend a surprising amount of time together. The findings will assist future efforts to identify places where human impacts may be affecting one portion of the sand tiger life cycle disproportionately.
Categories: Science

Revising the meaning of 'prion'

Science Daily - Wed, 05/10/2016 - 2:41am
Using an unbiased screen in yeast, a team of scientists have identified dozens of prion-like proteins that could change the defining characteristics of these unusual proteins.
Categories: Science