Say Media’s tech site ReadWrite has named a new editor-in-chief. Again.Industry vet Owen Thomas has agreed to come to ReadWrite, replacing Dan Lyons who joined the company in October. Lyons left on April 1 for a position at marketing software company, HubSpot.Thomas–one of several candidates for the gig, according to Say Media spokesmen via TechCrunch–had most recently been West Coast Editor for Business Insider, but held editorial leadership roles at several big-name brands before that, including VentureBeat, NBC Universal and Gawker’s Valleywag. “A decade ago, Richard MacManus launched ReadWrite by noting how the Web was beginning to fulfill its potential as a two-way medium–one meant for conversation, not broadcasting,” Thomas says in a release. “I’m proud to build on that heritage by leading a team that will explore where technology is taking us next, with an analytical and critical eye.”Prepared statements aside, Thomas is known for his snark. It’s a voice that that fits in with the Say Media’s trademarked “Point-of-View Publishing” and a general rise in first-person storytelling.”Owen is a brilliant writer with great experience covering every aspect of the technology industry,” says Kate Lewis, senior vice president and editorial director at Say Media. “He has a distinct point-of-view and a cleverness that makes his work resonate both inside and outside of his community.”Thomas’ hire comes a little over two years after Say Media acquired the site in December of 2011, and just six months following its rebranding from ReadWriteWeb to ReadWrite.To stay updated on the latest FOLIO: news, become a Facebook fan and follow us on Twitter!
Kinja originally launched in December of 2012. “To paraphrase Nick [Denton, founder and CEO of Gawker Media], it was developed to solve the tragedy of comments that can be a toxic and poisonous section of a news site or blog,” says Lauren Bertolini, community development manager It is difficult to argue that Internet trolls have become an endemic problem for publishers looking to create quality conversations that engage serious readers. And while Bertolini doesn’t believe there is a way to rid the Web of trolls, she does believe there are better ways to control the conversations of Gawker’s approximately 20 million monthly site visitors. “If you give people the tools to engage and promote a discussion then hopefully they will utilize it,” Bertolini says. Social Media is in Kinja’s DNA, but its built around news content, thus making it a unique product. Registered users can create a homepage where they can post blogs, share content from users and editors and store comments posted on any of the Gawker Media sites. Users can also follow writers, other users and integrate social media platforms like Facebook and Twitter into their homepage. Editors from each vertical will have the same tools available and are expected to be active members of the community. This incentivizes both the reader and the writer to participate in a manner that keeps the conversation moving forward. “The revamped commenting system debuting today will refine and sharpen that heckling, and make it more likely, we hope, that informed sources and subjects will bring their voices to bear on our stories, unmediated and of their own volition,” explains Gawker editor-in-chief John Cook in a post about the new platform. “It banishes untrusted or new sources to the outer reaches in a ‘pending queue,’ while privileging and highlighting threads started by readers that have been found useful in the past.”Bertonlini adds that while Gawker is primarily a news-producing operation, the ability for readers to contribute to the content by having a conversation around it is important. “We produce news and that’s what our foundation is. We understand the tools that you need to create content and we wanted a platform that was simple and easy to use that can build a rich story and conversation. We are giving people control of the conversation,” she says.Social blogging is not a new concept, but Kinja is unique in that it merges professional and amateur content into one space. This of course raises provocative questions about crowdsourcing content: How could this impact professional journalists? Will readers ultimately take control of content? Bertolini says that is not a concern for the company: “Our content is still edited by John Cook or our other editors and they will always decide what gets posted. The editors are still in control. But we have hired people out of comments.” Gawker Media rolled out its redesigned platform this week across all of its verticals, which include Gawker, Jezebel, Deadspin and a just re-introduced, Silicon Valley-focused Valleywag. Along with all this is a significant upgrade to Gawker’s homegrown commenting platform Kinja, which has been tweaked to surface more constructive content and “banish” pointless or excessively harsh commenters.
Dan Cohen AUTHOR Hampton, Va., home of Langley AFB and the former Fort Monroe, is on the front lines of the battle against rising sea levels. Water levels in the Hampton Roads region are expected to rise by up to five feet, while the land sinks up to 7.5 inches, by 2100, a net rise which tops the rate of any place on the East Coast. But the city has taken multiple steps to prepare for one of the most conspicuous effects of climate change, reports the Washington Post.Hampton now requires first floors of new buildings to be three feet higher than the Federal Emergency Management Agency (FEMA) requirement. Officials also are considering installing pervious pavement for sidewalks and parking lots, which will allow standing water to drain into the ground slowly. The city purchased and demolished 18 frequently flooded homes before converting the tract into a large drainage area that also provides a marsh habitat for wildlife and native plants. A plan to elevate more than 35 homes, partially supported by FEMA, is under way as well. And over the next five years, the city is investing $26 million in water quality projects to slow erosion and reduce tidal surges.Next month, Hampton will release a plan for adding more resilient infrastructure to a waterway which leads from the James River to Langley AFB, in an effort to mitigate the impact of flooding throughout the city’s core.Washington Post photo by Vicki Cronis-Nohe
$4,689 Now playing: Watch this: Adorama 4 Computers Desktops Best Buy Mentioned Above Apple iMac Pro Preview • iMac Pro puts the soul of a Mac Pro in an iMac body CNET may get a commission from retail offers. $4,999 $4,649 Apple Apple $4,999 Jun 14 • Apple Music vs. Apple Podcast vs. Apple TV: What’s the difference? The 2013 Apple Mac Pro. Sarah Tew/CNET In London last week to speak at a video games industry conference, I found myself in Harrods, the famously extravagant department store with everything from gourmet food to expensive suits to collectible coffee table books the size of actual coffee tables. (Editor’s note: Apple unveiled a new Mac Pro at WWDC on Monday.)Naturally, I had to check out the technology section, a long series of corridors filled with high-end gear, from £700 David Lynch Edition Bang & Olufsen speakers to a £1,200 Alligator skin iPhone case.Read more: Meet the new Mac ProIn the dedicated Apple nook of the store, I saw an old friend that I had not expected to. Right next to all the relatively new iPad Pros and Apple Watches, I saw a prominently displayed Mac Pro desktop. It looked just as it had in 2013, when that bold design launched, and yes, Harrods was selling it at its full price ($3,000 and up). Long before butterfly keyboards and Touch Bars, the Mac Pro was the Apple design it was popular to hate on. The design was radical for 2013, coming after years of traditional desktop towers. At the time, I found the change bold and forward-looking, but in hindsight, it was too focused on aesthetics and not enough on functionality. With extremely limited upgradability compared to the old tower design, the Mac Pro could not keep up with the growing demands of creative power users in an evolving world of 4K/8K video, HDR photography and VR/AR development. Get a look at that interior. Sarah Tew/CNET At the time, I said, “Apple’s new Mac Pro is a stunningly fresh take on the desktop computer. But it’s probably not for you.” One reason was that nearly any expansion would have to happen via externally attached Thunderbolt devices, and even in casual use, all those cables quickly added up to a cluttered workspace.From my original review: “Components are built around something Apple calls a unified thermal core. A small lock switch is moved to the unlocked position, and the entire outer sleeve of the system lifts off, exposing the interior… the idea being promulgated here is that your expandability should flow outward, not inward.”But it was that very thermal core that prevented the Mac Pro from keeping up customers’ needs, especially for graphics power. By 2017, the company had essentially thrown up its hands in the matter, giving the same trash can chassis a reasonable spec upgrade, but then shifting the conversation to a completely different future version of the Mac Pro desktop that would trade the now 6-year-old design for something new and modular. The 2013 Mac Pro next to an even older tower Mac Pro. Sarah Tew/CNET We’ve been waiting ever since, and in the meantime, Apple execs have dropped a handful of hints, most centered on a “not now,” “not yet,” “maybe next year,” message. An upgraded all-in-one desktop, called the iMac Pro, has attempted to fill some of that marketplace hole, but that system has similar expandability limitations and is also based on a very mature iMac design (plus you’re stuck with a computer and display built into a single unit). This week’s WWDC keynote may be where that wait ends. While the Harrods sales staff may not have read into it yet, the Apple rumor mill is all-in on a new the Mac Pro at least making a preliminary appearance at Monday’s keynote. Follow along with us at our Apple WWDC 2019 keynote liveblog and video stream, starting Monday, June 3, 9:30 a.m. PT. Aug 19 • iOS 13 and iPadOS: How to join the beta, use the best new features on your iPhone and iPad See It Apple iOS 13: New Siri voice, camera tools, Dark Mode for iPhone New Mac Pro makes its debut, starts at $5,999 Apple gives the iPad its own OS Returning to Apple’s WWDC after 20 years, now with 5 OSes instead of 1 Get all the latest from WWDC reading • Trash can redux: Reexamining the legacy of the 2013 Apple Mac Pro Hands-on with Apple’s new Mac Pro desktop See also See It Apple iMac Pro See All Share your voice See It Tags WWDC 2019 See it Jul 5 • RIP, iTunes. This is what happens to your Apple music now Comments WWDC 2019 3:15 Jun 30 • iOS 13 and iPadOS public betas: How to download and install them now •
HSBC in tax dodge claims4.1K viewsHSBC in tax dodge claims4.1K views00:00 / 00:00- 00:00:0000:00HSBC in tax dodge claims4.1K viewsBusinessIt’s been called the biggest banking leak in history – accusations that HSBC helped wealthy clients to dodge tax. Thousands of accounts at the world’s second biggest bank reportedly show the lender’sVentuno Web Player 4.50It’s been called the biggest banking leak in history – accusations that HSBC helped wealthy clients to dodge tax. Thousands of accounts at the world’s second biggest bank reportedly show the lender’s
Avengers: Endgame posterTwitterAvengers: Endgame is all set to release on April 26 and ahead of the theatrical release, the filmmakers held a press conference. To make things more interesting, the Marvel superheroes spared some empty chairs at the press conference with a view to honouring the heroes they lost in Avengers: Infinity War.It is a known fact that quite a lot of superheroes were killed off in the previous Avengers film, Infinity War. Thanks to Thanos, superheroes such as Spider-Man, Doctor Strange, Black Panther, Scarlett Witch, Winter Soldier, Nick Fury, Star-Lord, Drax, to name a few. Their loss wasn’t unrecognised by the Marvel heroes as the Endgame heroes honoured their colleagues. By symbolising honour towards the heroes who were once Avengers, quite a few chairs were kept empty.The same was shared by a New York Times journalist on his Twitter feed as part of the live-feed. In the picture, with the Avengers logo, most of Endgame’s actors such as Karen Gillan, Paul Rudd, Scarlett Johansson, Kevin Feige, Robert Downey Jr., Don Cheadle, Chris Hemsworth, Danai Gurira, Jeremy Renner, Anthony Russo, Chris Evans, Joe Russo, Brie Larson, and Mark Ruffalo including filmmaker Joe Russo, were all part of the press conference.The ‘Avengers: Endgame’ LA press conference left empty chairs for their fallen comrades ?(via @kylebuchanan) pic.twitter.com/sblRvdHxKa— Fandom (@getFANDOM) April 7, 2019Avengers: Endgame press conferenceTwitterSpoiler related questions were subtly dodged by all the actors but they mostly spoke about their experiences of being a part of MCU. While honouring the fallen comrades was a good strategy, it is certain that most or maybe all of them will come back to life. Considering how Tom Holland is already promoting Spider-Man: Far From Home where he deals with a new villain (Mysterio), it is obvious that the superheroes plan to bring back their Avengers colleagues.With only a few more days to go before the release of Avengers: Endgame, all eyes are on the calendar. To promote the film, Marvel Studios is taking a lot of efforts to spread the word that one of the biggest franchise films is coming to an end. Avengers is one of the only franchises to have a plethora of actors joining hands. With every part, the Avengers family only grew at an exponential rate. Starting from just a few Avengers tackling Loki in the first film to adding more comrades to their team as new challenges befell them. We sure would like to know how the remaining Avengers plan to bring back the dead.
Online marketplace Snapdeal has invested $20 million in gojavas, a third party logistics player, a company statement said here on Wednesday.This is the second round of investment made by Snapdeal in the company.”The investment in gojavas is in line with Snapdeal and gojavas’s strategic partnership signed earlier this year to build capacities for the future and strengthen the supply chain ecosystem,” the statement said.The company is working consistently for the last 8-10 months to strengthen its supply chain and logistics. It has invested $100 million in the last six months to improve its delivery timelines by 70 percent.It will invest an additional $200 million in the next 12 months to further strengthen its supply chain.The statement said the partnership between Snapdeal and gojavas has proved to be mutually beneficial. “The companies have worked together to build capacity and expand reach.””gojavas’s reach expanded to include 150 more cities within 100 days of having entered into a partnership with Snapdeal. gojavas currently delivers to 350 cities,” it added.”With the freshly infused funds, our aim is to help gojavas become more successful and further expand their reach. Our teams will continue to work together closely in the future as well,” Rohit Bansal, co-founder, Snapdeal said.”Our strategic partnership with Snapdeal has helped us become one the largest independent logistics players in the country with current revenue run rate of Rs.500 crore, while keeping our operations sustainable and efficient because of the higher visibility of future sales and targeted cities for expansion,” Vijay Ghadge, chief operating officer, gojavas said.
Gold jumped to its highest in nearly three weeks on Monday as Asian equities slid and the dollar held close to six-month lows, burnishing demand for the safe-haven metal.Weak economic data and uncertainty over U.S. monetary policy have sparked risk-averse sentiment in the market, underpinning demand for safety assets such as gold and the Japanese yen, which is trading near levels not seen since 2014.Spot gold rose to $1,250.46 an ounce early on Monday, its highest since March 22. It later pared some gains to trade up 0.8 percent at $1,249.70 an ounce by 0202 GMT, following its best weekly gain in five weeks last week.”Markets are still jittery about what’s going on in the global economy and gold is the preferred safe-haven,” said OCBC Bank analyst Barnabas Gan.Gold will remain elevated in the short term, Gan said, but he expected the metal to give back some of its gains later in the year as the Federal Reserve carried out two rate hikes.Higher rates would weigh on gold by lifting the opportunity cost of holding non-yielding bullion.Waning expectations for further rate increases this year helped gold to its best quarter in nearly 30 years in the three months to March.Fed Chair Janet Yellen on Thursday said the U.S. economy is on a solid course and still on track to warrant further interest rate hikes. The U.S. central bank raised rates in December for the first time in nearly a decade.New York Fed President William Dudley on Friday said the central bank must approach further rate hikes cautiously and gradually because of lingering external risks to the U.S. economy, despite some strength at home and welcome hints of inflation.The dollar slid 0.15 percent against a basket of major currencies, falling close to last week’s low of 94.015, also the lowest since mid-October.MSCI’s broadest index of Asia-Pacific shares outside Japan eased 0.4 percent, while Japan’s Nikkei stock index fell nearly 2 percent.Data on Friday showed hedge funds and money managers cut their net long positions in gold futures and options in the week to April 5, but still not far from a two-month high.Assets in SPDR Gold Trust, the world’s largest gold-backed exchange-traded fund, fell 0.22 percent to 817.81 tonnes on Friday.
File photo of MS Dhoni.IANSFormer Indian captain and cricket legend Mahendra Singh Dhoni may be dropped from the Indian squad as he is not in the future plans of Team India, the Times of India reported. According to reliable sources quoted by TOI, Dhoni is not the same batsman that he used to be and MSK Prasad will speak to him about retirement so that he retires and youngsters get chances.”We’re surprised that he’s not done it so far. There are youngsters like Rishabh Pant waiting to grab their chance. As we saw in the World Cup, Dhoni isn’t the same batsman anymore. Despite coming in at No. 6 or 7, he was struggling to force the pace, and it was hurting the team,” said a source from BCCI.This source also stated that MSD has no chance of getting selected for the West Indies series as he is not an automatic pick anymore. The likes of Dhoni and Pant didn’t play a big part in India’s victory with the bat.Twitter/BCCI”I don’t think he’s in the selectors’ plan for the 2020 T20 World Cup too. He must quit international cricket gracefully. He isn’t an automatic pick any more,” the anonymous official added.He also mentioned that the board did not want to distract him before the World Cup talking about retirement but the time has come for the 38-year-old to take a call.”We didn’t want to distract him, and he too must have wanted the team, and himself, to be focused on the Cup. But the time to take a call is now. He has nothing left to achieve or prove in international cricket anymore.” India were undone by a smart and determined Kiwi side.Twitter/Cricket World CupThe former Indian captain had to face a lot of criticism from cricket fans and former cricketers during the ICC Cricket World Cup for scoring at a slow rate during the death overs of matches. The World Cup-winning captain could not perform up to expectations as a finisher and it looked like age has taken a toll on him. Probably the time has come to say goodbye to, according to some, the greatest captain ever of Indian ODI cricket team.
By Mark F. Gray, Staff Writer, firstname.lastname@example.orgA Bowie man was indicted on 20 counts for defrauding the United States Department of Veterans Affairs (V.A.) of $300,000 by a federal grand jury for allegedly using his business to deceive a program for disabled military veterans on April 22.Francis Engles, 63, is alleged to have used his company, Engles Security Training School, which he co-owned and operated, to overcharge the V.A.’s Vocational Rehabilitation and Employment (VR&E) program for services that either were shortened, or not performed altogether. After an extensive federal investigation, Engles was arrested on April 18 then indicted four days later.A Bowie man was indicted on 20 counts for defrauding the United States Department of Veterans Affairs of $300,000, after turning in misleading information about a program for disabled veterans on April 22. (Courtesy Photo)According to the Soldier of Fortune military blog, the formal announcement was made by representatives of the law enforcement agencies who collaborated on the investigation. Assistant Attorney General Brian A. Benczkowski of the Justice Department’s Criminal Division, U.S. Attorney Jessie K. Liu for the District of Columbia, Special Agent in Charge Matthew J. DeSarno of the FBI’s Washington Field Office Criminal Division and Special Agent in Charge Kim Lampkins of the V.A. Office of Inspector General (OIG), Mid-Atlantic Field Office made the public statement after unsealing the indictment.Engles Security became an approved vendor of the VR&E program in 2015. The VR&E program is designed to help disabled military veterans with education and employment-related services. The Temple Hill-based company specialized in security guard and related courses. The indictment claims Engles falsified documents regarding how he administered it’s course.However, the investigation found evidence that the company provided veterans far less than what Engles presented to the Veterans Administration. He allegedly submitted documents to the V.A. stating that he was providing 15 veterans with months-long courses for 40 hours per week and over 600 total hours. However, in some instances, he allegedly offered only a few hours of class per day, while claiming that the students were in class for 40 hours per week.According to the indictment, Engles frequently cancelled classes without notice or any provision to make them up. Instructors often were late and ended class early. Engles is also alleged to have ended some classes after less than a month although he represented to the V.A. that the veterans’ classes would last for several months.The elaborate scheme also included Engles allegedly creating and sending to the V.A. “Certificates of Training” stating that veterans had completed courses that they had not completed or taken. Engles allegedly submitted letters to the V.A. falsely stating that the veterans had been employed by his private security business. Engles also allegedly instructed veterans to sign attendance sheets representing that they had attended class sessions, which they didn’t attend.Engles allegedly charged the VA thousands of dollars more for veterans’ courses than he charged non-veterans who took the same or similar courses. The V.A. paid Engles Security over $300,000 for the education of 15 veterans.The FBI’s Washington Field Office and the V.A. OIG are leading the investigating the case. Trial Attorney Simon J. Cataldo of the Criminal Division’s Public Integrity Section and Assistant U.S. Attorney David Misler of the U.S. Attorney’s Office for the District of Columbia are lead in prosecuting the case.There hasn’t been an announcement about when the trial will begin or what jurisdiction will hear it.
ABC News is getting in on the parade of traditional media outlets launching daily news podcasts.Starting March 28, ABC News debut “Start Here,” a twenty-minute session hosted by Brad Mielke that taps ABC News personnel and offers insight on events shaping the world. New episodes will post each weekday at 6 a.m. eastern on Apple Podcasts, TuneIn, Spotify, Stitcher, Google Play Music and the ABC News app. “We’ve got the global resources of ABC News at our disposal so we can tackle each day’s most important and interesting stories. Sometimes, we’ll be making news with our investigative reporting or high-profile interviews. But, always, we will provide depth and context and a unique presentation that is contemporary and interesting,”said Steve Jones, vice president and general manager of ABC Radio, via email. He added: “Our presentation will be smart without being pretentious.”Podcasting has been around for years, but the medium has become more viable as more consumers gain access to mobile devices capable of streaming digital audio or show interest in a new phalanx of connected home devices, such as Amazon’s Alexa, that allow for content to be beamed via broadband to home speakers. The New York Times and NPR have both found traction with sundry podcasts in recent months. Data released by Nielsen earlier this week suggest the number of homes that define themselves as “avid fans” of podcasts rose to 16 million in the fall of 2017, compared with 13 million during the same period in 2016. ABC Radio’s Jones said the median age of podcast listeners is 29.ABC News has been experimenting with new kinds of digital audio for a few years, Jones said, launching an ABC News audio channel on the ABC News app about three years ago. Executives considered a podcast about top stories, but also felt the content might become dated very quickly. “But, as smart speakers began driving increases in consumer listening, we determined it was time to synthesize our resources in to a podcast that could become a new, daily habit,” he said.Each episode will feature four to six stories with an emphasis on taking listeners right to the scene of compelling moments using natural sound and on-location reporting. Each day Mielke will talk to ABC News veterans including Martha Raddatz, Chief Global Affairs Correspondent; Jonathan Karl, Chief White House Correspondent; Juju Chang, “Nightline” co-anchor; and Rebecca Jarvis, Chief Business, Technology and Economics Correspondent. “Many of the same names and faces you see on TV or on your social media feed will join ‘Start Here’ to further report on the stories driving each news cycle,”said Jones.Mielke is an ABC News reporter based in New York. He served as Campaign Digital Journalist during the 2016 election. Since that time, he has hosted several politics shows on ABC Radio and He reports on breaking news events on ABC News Digital. Popular on Variety ×Actors Reveal Their Favorite Disney PrincessesSeveral actors, like Daisy Ridley, Awkwafina, Jeff Goldblum and Gina Rodriguez, reveal their favorite Disney princesses. Rapunzel, Mulan, Ariel,Tiana, Sleeping Beauty and Jasmine all got some love from the Disney stars.More VideosVolume 0%Press shift question mark to access a list of keyboard shortcutsKeyboard Shortcutsplay/pauseincrease volumedecrease volumeseek forwardsseek backwardstoggle captionstoggle fullscreenmute/unmuteseek to %SPACE↑↓→←cfm0-9Next UpJennifer Lopez Shares How She Became a Mogul04:350.5x1x1.25×1.5x2xLive00:0002:1502:15
, Nanotechnology Fig. 2. Capillarity-induced skin folding. (A) Optical microscope image of an array of wrinkles and folds around the boundary of a water droplet placed on a wrinkled surface (t = 20 min, ε ≈ −0.03). The blue arrow indicates a water filament. (B) Schematic illustrations of the wrinkle-to-fold transition of the skin due to surface tension forces of water. Representative AFM images and the line profiles are shown below the illustrations. (C) Schematic illustrations and optical microscope images showing the evolution of localized folds with increasing ε (t = 10 min). A water droplet was placed on the surface before compression; the blue arrow and red triangles indicate the formation of a water filament and localized folds, respectively. (D and E) The peak-to-peak distance of wrinkles (LW) and folds (LF) and the length (l) and spacing (s) of the folds as a function of t. (E, Inset) Schematic illustration showing the top view of an array of folds at the boundary. (F) LW and LF as a function of |ε| (t = 3 min). (F, Inset) Line profiles of the folds for |ε| ≈ 0.02, 0.08, and 0.17. (Scale bars: A, 10 μm; B, 5 μm; and C, 50 μm.). Credit: Nagashimaa S, Haa HD, Kima DH, Košmrljb A, Stone HA, Moon M-W (2017) Spontaneous formation of aligned DNA nanowires by capillarity-induced skin folding. Proc Natl Acad Sci USA 114:24 6233-6237. Journal information: Proceedings of the National Academy of Sciences “This phenomenon can be considered a lithography-free method that allows for ready fabrication of arrays of nanomaterials, where their size, length, and periodicity could robustly be tuned,” he continues. “Moreover, not only water but other liquids could be used to carry nanomaterials and to induce the wrinkle-to-fold transition.”Moon describes several examples of potential de novo fabrication and analysis techniques, including nanoscale lithography, nanoimprint, growth by chemical vapor deposition, and chemical reaction. “Our method can potentially be used for the fabrication of 1-dimensional nanowires or nanoarrays for application to DNA analysis with very dilute or small amounts of DNA; DNA templates as new metal or ceramic nanostructures; and DNA treatment devices for healing modified DNA. In addition, one can adopt this technique to handle protein, blood, or nanoparticles at nanoscale.”Košmrlj and Stone tell Phys.org that one area of planned research is focused on nonlinear analysis and modeling for improved quantitative understanding of the capillarity-induced wrinkle-to-fold transition. “Since our system is composed of the mechanical behavior of the fold transition triggered by liquid surface tension, the wrinkle-to-fold transition that we’ve found is associated with large deformations where conventional linear elasticity theory does not apply. While the basic mechanisms can be explained within the linear theory, quantitative comparison with experiments can only be achieved by taking into account geometrical and material nonlinearities. We are therefore performing numerical simulations by coupling liquid surface tension and solid deformation, as well as performing analysis with perturbation series, where nonlinearities of elastic structures can be studied systematically.””I also think that the challenges ahead are to find how to achieve larger areas for DNA pattern formation,” Moon says. “In fact, our latest results—obtained after this PNAS article was accepted—shows some impressive progress for the region with wrinkle-to-fold transition in larger areas, such as the entire area underneath a water droplet. Another area to be studied, Moon continues, concerns the fact that biological morphogenesis of skin–substrate systems are ubiquitous in organisms where water is a major constituent. “We’re trying to find situations where our findings are applicable. Active collaborations with experts in the field would be helpful.” The researchers might also investigate materials other than PDMS. “Yes. other polymers can work if they possess the basic factors to govern the fold transition, these being the thinness of the nano-skin and soft body materials, and surface hydrophilicity to ensure sufficient surface reaction with liquid,” Moon notes. Assistant Professor and lead author So Nagashima, Assistant Professor Andrej Košmrlj, Donald R. Dixon ’69 and Elizabeth W. Dixon Professor Howard A. Stone, and Principal Research Scientist Myoung-Woon Moon discussed the paper they and their co-authors published in Proceedings of the National Academy of Sciences. “I think that the most challenging aspect of devising our method for utilizing a thin skin template that responds to water by dynamically changing its surface morphology was finding the conditions where the wrinkle-to-fold transition occurs,” Moon tells Phys.org. “The critical conditions as a function of the applied strain, initial wrinkle geometries, and thickness of the skin layer determined by oxygen plasma treatment duration were difficult to find.” Moon adds that the observation technique for the dynamic transition was limited to only optical microscopes whose highest optical resolution falls between 100 to 1000 nm in the width of nanowires, this being due to the dynamic transition taking place at the submicron scale.When inducing a template surface wrinkle-to-fold transition by exploiting the capillary forces of water containing DNA molecules, Stone points out, the observation that water changes the wrinkle-to-fold transition is new. “As far as we know, ours is the first study to show this effect, as is demonstrating one use of such folds for the alignment of DNA. Moreover, control of surface tension or resultant capillary forces and the area for fold formation is relatively hard—and by adding DNA molecules to water, it appears that the surface tension is changed, so the fold transition length was shorter.”Template preparation used an oxygen plasma treatment of prestretched polydimethylsiloxane (or PDMS, a polymeric organosilicon compound) substrates for varying durations. “In fact,” Moon explains, “the manipulation of PDMS with prestretching strain is a relatively well-developed method as is the oxygen plasma treatment: both have been discussed in the literature. We can make the samples with various sizes of a few millimeters to a few centimeters, which can be also made on much larger area.” Moon notes that the researchers can also vary polydimethylsiloxane’s mechanical properties—to make it more stretchable, soft or flexible—by changing the ratio of elastomer and cross-linker for PDMS preparation. Fig. 1. Spontaneous formation of aligned DNA nanowires. (A) Schematic illustrations of the spontaneous formation of an array of DNA nanowires by the skin folding induced by water filaments containing DNA molecules. (B) Sequential optical microscope images of a droplet of DNA solution spreading over wrinkles (t = 5 min, ε ≈ −0.03); the wrinkle-to-fold transition occurs at the boundary and propagates with the edge of the droplet. (C) AFM image of an array of DNA nanowires extending from the boundary (t = 2 min, ε ≈ −0.02). The line profiles for each region are shown next to the image. (Scale bars: B, 50 μm and C, 4 μm.). Credit: Nagashimaa S, Haa HD, Kima DH, Košmrljb A, Stone HA, Moon M-W (2017) Spontaneous formation of aligned DNA nanowires by capillarity-induced skin folding. Proc Natl Acad Sci USA 114:24 6233-6237. Citation: Of wrinkles and wires: Capillarity-induced skin folding spontaneously forms aligned DNA nanowire (2017, June 19) retrieved 18 August 2019 from https://phys.org/news/2017-06-wrinkles-wires-capillarity-induced-skin-spontaneously.html Other possible future research interests and additional innovations mentioned by the authors include:- theoretical analysis to elucidate the underlying physics related to the water-induced surface folding- exploit the underlying physics to develop a robust and mass fabrication method for inducing the wrinkle-to-fold transition- find and discuss morphological changes in nature where water is likely a key factor- apply the current study’s results to DNA analysis or DNA drug devices- 2-D/3-D sensors, diagnostic tools, and drug-release systems- templates for fabricating 1-dimensional nanomaterials- methods for local patterning”I believe that this work is beneficial to materials science for nanowire templates, mechanics for fluidic channels, and biology for quantitative analysis of DNA or other biomolecules,” Moon concludes. Explore further , Journal of Biomedicine and Biotechnology More information: Spontaneous formation of aligned DNA nanowires by capillarity-induced skin folding, PNAS (2017) 114:24 6233-6237, doi:10.1073/pnas.1700003114Related:1DNA nanowire fabrication, Nanotechnology (2006) 17:R14m https://core.ac.uk/download/pdf/1559975.pdf2DNA-Templated Self-Assembly of Protein Arrays and Highly Conductive Nanowires, Science (2003) 301:5641 1882-1884, doi:10.1126/science.10893893Nanowire-Based Sensors for Biological and Medical Applications, IEEE Transactions on NanoBioscience (2016) 15:3 186-199, doi:10.1109/TNB.2016.25282584DNA-Based Applications in Nanobiotechnology, Journal of Biomedicine and Biotechnology (2010) Article ID 715295, doi:10.1155/2010/7152955Nanowire nanosensors, Materials Today (2005) 8:5, doi:10.1016/S1369-7021(05)00791-1 A key aspect of the study was confirming that the new method reliably manipulates DNA nanowire size, geometry, and alignment. “By adjusting the conditions for stretching strain, plasma treatment duration, and post-compression of the stretched PDMS, DNA nanowires can be a half cylinder, a perfect cylinder, or undulated wire shape,” Moon tells Phys.org. “By changing the wrinkle geometries such as the amplitude—which is governed by the strain—one can control the distance between wires in the fold channel.” Wider distances between wires, he continues, can be accomplished by compressing the PDMS less, while compressing the substrate more yields smaller distances.To address these challenges, the scientists discovered a transformation resulting from capillary forces that act at the edge of a water droplet that can, with only 1% compression, transform wrinkles into folds, which in the absence of a liquid drop form only at very high (~30%) compression. In addition, Moon adds, smaller substances such as biomolecules or nanoparticles can follow the water channel to form aligned 1-dimensional nanostructures. “Smaller is better. Less is more. We’ve found that the wrinkle-to-fold transition takes place more easily when the following factors become smaller: compression level, skin thickness, droplet volume, size of the sample surface, and static contact angles of droplets.”Based on their findings, the authors stated that their approach could lead to new ways of fabricating functional materials. “Our key finding is that one can change wrinkles into localized folds by simply exploiting the capillary forces of water on wrinkled surfaces under very small strain of about 1% in compression,” Nagashima tells Phys.org. “Recent studies reported in the literature have demonstrated that such wrinkle-to-fold transitions can help develop systems that dynamically change their properties according to the surface morphology. However, inducing the transition in the absence of water is difficult to achieve in practice because, in general, large compression needs to be applied to the skin-substrate system, which hinders wider applications. Our study reveals that even 1% of compression, which is the critical level for creating wrinkles in our case, is large enough to trigger the transition to folds locally when water is present.” Nagashima notes that while the compression level required to induce the transition might differ according to the skin-film system used, only a small compression level would be necessary in combination with water. Observation of the phase transition of liquid crystal defects for the first time Fig. 3. Tunable DNA nanowires. (A) Bright- and dark-field optical microscope images of DNA nanowires created by the capillarity-induced wrinkle-to-fold transition. After evaporation of the droplet, the strain was adjusted to see the structure inside the folds. (B) Confocal microscope images of an array of DNA nanowires extending from the boundary to the locations indicated by the yellow triangles. (C) AFM images of DNA nanowires obtained using wrinkles prepared with various ε (t = 10 min). After the folds were formed, the strain was adjusted to ε ≈ 0.00. The line profiles of the nanowires indicated by the green dotted lines are shown in the images. (D) Height of the nanowires as a function of t (ε ≈ −0.03). (E) Changes in shape of a DNA nanowire from straight to wrinkled with an increase in tensile strain. (F) The wavelength (black symbols) and amplitude (orange symbols) of the wrinkled DNA nanowires as a function of applied tensile strain. (G and H) The line profiles of the DNA nanowire and the skin surface before and after application of the tensile strain (i.e., ε ≈ −0.02 and 0.05, respectively). The color of the profiles corresponds to that of the dotted lines indicated in the AFM images shown in E. (Scale bars: A and B, 10 μm; C, 2 μm; and E, 1 μm.). Credit: Nagashimaa S, Haa HD, Kima DH, Košmrljb A, Stone HA, Moon M-W (2017) Spontaneous formation of aligned DNA nanowires by capillarity-induced skin folding. Proc Natl Acad Sci USA 114:24 6233-6237. , Science (Phys.org)—Nanowires fashioned from DNA (deoxyribonucleic acid)—one of several type of molecular nanowires incorporating repeating molecular units—are exactly that: Geometrically wire-like DNA-based nanostructures defined variously as having a 1~10 nm (10−9 m) diameter or a length-to-diameter ratio >1000. While nanowires can be made from several organic and inorganic materials, DNA nanowires have been shown to provide a range of valuable applications in programmed self-assembly1,2 of functional materials—including metallic and semiconductor nanowires for use in electronic devices—as well as biological, medical, and genetic analysis applications3,4,5. That being said, DNA nanowire adoption has been limited due to historical limitations in the ability to control their structural parameters—specifically, size, geometry and alignment. Recently, however, scientists at Korea Institute of Science and Technology and Princeton University leveraged the capillary forces of water containing DNA molecules to demonstrate size-controllable straight or undulated aligned DNA nanowires that were spontaneously formed by water entering wrinkled channels of a compressed thin skin on a soft substrate, which subsequently induced a wrinkle-to-fold transition. © 2017 Phys.org This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
Police search for missing woman Driver named following fatal collision Hello and welcome to StokeonTrentLive’s breaking news service bringing you all the latest updates from Stoke-on-Trent and North Staffordshire on Monday, June 17. Our team of reporters will be updating this live service with all the latest on the traffic and travel and weather updates – as well as news and entertainment through the day. We’ll be bringing you the very latest updates in our live news feed below. For the latest news and breaking news visit www.stokeontrentlive.co.uk Get all the big headlines, pictures, analysis, opinion and video on the stories that matter to you. Read MoreTop stories on StokeonTrentLive Dad slams ‘disgusting’ hospital window Follow StokeonTrentLive Download our app – You can download our free app for iPhone and iPad from Apple’s App Store , or get the Android version from Google Play. Follow StokeonTrentLive on Facebook – Like our Facebook page to get the latest news in your feed and join in the lively discussions in the comments. Click here to give it a like! Follow us on Twitter – For breaking news and the latest stories, click here to follow SOTLive on Twitter . Follow us on Instagram – Featuring pictures past and present from across Stoke-on-Trent, North Staffordshire & South Cheshire – and if you tag us in your posts, we could repost your picture on our page! We also put the latest news in our Instagram Stories. Click here to follow StokeonTrentLive on Instagram.Key EventsSainsbury’s sign catches fire09:1622:43End of live reporting20:37A500 roadworks20:20Scheduled reoad works.A53 Leek New Road in both directions closed due to resurfacing work during the night from Sandbach Road to A5272 Hanley Road (Holden Bridge). Between 6:57 and 5:00 Mondays to Fridays until 5:00 on 21st June. 19:30Longport trafficBrownhills Road / Davenport Street / Newcastle Street busy but moving between A500 (Porthill Bank) and Tunstall.19:02Heavy traffic on Leek Road Heavy traffic on A53 Leek New Road at A5009 Baddeley Green Lane.17:58Smallthorne roundaboutsUsual congestion on A5272 Hanley Road / High Lane around Moorland Road (Smallthorne Roundabouts). 17:10M6 reopen after fallen tree All lanes open, fallen tree removed on M6 Southbound between J16 A500 (Stoke-On-Trent / Crewe) and J15 A500 D Road (Stoke-On-Trent). Lane one (of three) was closed. 16:55Fallen tree on M6 One lane closed due to fallen tree on M6 Southbound between J16 A500 (Stoke-On-Trent / Crewe) and J15 A500 D Road (Stoke-On-Trent). Traffic is coping well. Lane one (of three) is closed. 16:14M6 in StaffordshireTwo lanes closed and queuing traffic due to accident on M6 Northbound from J13 A449 (Stafford South) to J14 A34 (Stafford North). Travel time is 15 minutes. Lanes two and three (of three) are closed. 15:50Chell Street busyA5272 Chell Street busy but moving at A5272 Merrick Street / B5047 Hulton Street (Providence Square).15:44Chell traffic Slow traffic on A527 Biddulph Road coming from Brindley Ford Southbound at A5272 High Lane roundabout. 15:37One lane on M6 blocked15:34A50 westbound easingTraffic easing, earlier broken down vehicle on A50 Westbound between A518 Derby Road (Water Bridge roundabout) and B5030 Ashbourne Road (McDonalds roundabout). Lane one (of two) was closed. All restrictions were lifted prior to 13:55. There was a separate break down within the queues.15:13M6Toll issues15:05M6 in Cheshire One lane blocked and slow traffic due to broken down van on M6 Northbound from J18 A54 Middlewich Road (Middlewich / Holmes Chapel) to J19 A556 (Knutsford). Lane one (of four) is blocked. Affecting traffic heading towards Warrington.12:1140-minute delays on A50 One lane closed and queuing traffic due to shed load and lorry having a tyre changed on A50 Westbound between Derby Road (Cubley, Sudbury) and A518 Derby Road (Water Bridge roundabout, Uttoxeter). Travel time is 40 minutes.Lane One (of Two) is closed. 12:00The week ahead…In need of a forecast for the week ahead? Here you go… ��️⚡️⚠️ pic.twitter.com/GYKwoEkD44— Met Office (@metoffice) June 17, 201911:43Traffic still heavy on Victoria RoadHeavy traffic on A50 Victoria Road at A5007 City Road. 11:03Lane closure due to shed load on A50One lane closed and queuing traffic due to shed load on A50 Westbound from Derby Road (Cubley, Sudbury) to A518 Derby Road (Water Bridge roundabout, Dovefields Industrial Estate).Lane One (of Two) is closed. Also not helped by traffic leaving Download Festival. 11:03Storms a-coming…⚠️A #thunderstorm warning will be in force from 1800 on Tuesday until 2100 on Wednesday ⚠️ Here are the details ⚡️ pic.twitter.com/e0MDdlLfVq— Met Office (@metoffice) June 17, 201910:13Breakdown on M6Lane 1 is closed between #J16 #Barthomley and #J17 #Sandbach #M6 due to a live lane breakdown. #TrafficOfficers en route to assist clearing. Please obey the lane closure signals @NWmwaypolice— Highways England (@HighwaysNWEST) June 17, 201909:31Leek Road busy at Joiners SquareA52 Leek Road in both directions busy but moving at A50 Lichfield Street (Joiners Square). 09:30Fallen tree in IpstonesHigh Street in both directions partially blocked, heavy traffic due to falling tree colliding with a telegraph pole from Belmont Road to Brookfields Road.Police are waiting for services to come and deal with fallen telegraph pole and cabling. 09:16KEY EVENTSainsbury’s sign catches fireMore here09:15Breakdown at J15 of M6M6 Southbound lane closed on exit slip road, queuing traffic due to broken down vehicle at J15 A500 D Road (Stoke-On-Trent).Lane one (of two) is closed heading up to the motorway bridge. 08:41Breakdown on M6Broken down vehicle in lane 1 (of three), #M6 northbound J14 #StaffordNorth to J15 #StokeOnTrent. #Freerecovery and#TrafficOfficers en route to deal— Highways England (@HighwaysWMIDS) June 17, 201908:21Slow in Werrington Road Slow traffic on A52 Werrington Road Westbound before A52 Leek Road (Lime Kiln Traffic Lights). Travel time is four minutes. 08:21Busy at Porthill and Lime Kiln banks- A527 Porthill Road busy but moving at A500 D Road / Longbridge Hayes Road / Longbridge Hayes Road (Porthill Bank).- Heavy traffic on Bucknall Road inbound from A52 Leek Road (Lime Kiln Traffic Lights) to Hanley Town centre. 08:20Heavy traffic on Vicky Road Heavy traffic on A50 Victoria Road at A5007 City Road. 07:54Busy in Hanley RoadA5272 Hanley Road / High Lane busy but moving around Moorland Road (Smallthorne Roundabouts) Punter found hiding in bushes
August 24, 2007 This continues our 8/10 and 8/22/07 report of interior work of the first floor apartment in Unit 9. This apartment will be completely finished for handicapped access. Alumnus Adam Nordfors returned for a few weeks this summer to lead one of the construction teams. Here he teaches installation of metal studs to one of the workshop participants. This continues our 8/10 and 8/22/07 report of interior work of the first floor apartment in Unit 9. This apartment will be completely finished for handicapped access. Alumnus Adam Nordfors returned for a few weeks this summer to lead one of the construction teams. Here he teaches installation of metal studs to one of the workshop participants. [Photo & text: sa] Insulation on the inner walls is complete in the lightscoop area and workshop participants Youn Joong Shuk and Ji Seon Yeong continue to cut and install insulation panels in the main room and on the ceiling. [Photo & text: sa] [from left] Workshop participant Davide Vadala installs side supports for metal studs under the ceiling. Workshop participants Youn Joong Shuk and Ji Seon Yeong. This report continues on 8/27/07 [Photo & text: sa]
Fox International Channels has launched its Fox Crime channel on South African pay TV platform DStv.The thematic channel, branded locally as FOXCRIME, will have FIC’s noir drama coproThe Bridge, and franchise crime properties including Criminal Minds, CSI and Blue Bloods as well as a classic crime block comprising NYPD Blue, Remington Steel,CHIPS and Streets of San Francisco.It will also include crime-themed documentaries including an African-focused slot entitled Case Files: Africa that will cover infamous cases from across the continent.“FOXCRIME’s steady subscriber growth and enduring rating’s success since its original 2006 launch in Italy, is the product of a killer mix of addictive crime programming and FOX brand sensibility,” said Alessandro Tucci, senior VP and general manager for FIC Africa.FOXCRIME now reaches 26.6 million homes worldwide. It joins FOX, National Geographic Channel and Nat Geo Wild on the MultiChoice-owned DStv platform, which has 1.5 million subscribers.
US digital video ad spend grew by 42% over the past year to total US$7.46 billion in 2015, according to AOL’s 2015 State of the Video Industry report.The study said that in the next four years the video ad-spend figure will nearly double, reaching more than US$13 billion by 2019.“For the sixth consecutive year, digital video has been growing and shows no signs of stopping. For many in the video space, this is a great problem to have. But, with more dollars piling into video, new opportunities are emerging quickly,” said AOL.The report found that nearly 40% of buyers, more than twice as many as in 2012, said their increased digital spend is coming directly from broadcast TV, with 31% saying they were funding their digital video efforts with cable television dollars.Some 90% of buyers also said they are shifting dollars from linear TV to digital channels, reallocating an average of 10% of their television budgets.“Of marketers who are moving TV dollars towards digital channels, 88% are shifting that television spend to some form of video, such as desktop, mobile or over-the-top,” said AOL.“63% of buyers claimed that the bulk of this shifted spend is going to desktop video, with 55% directing the reallocation to mobile video.”Overall, AOL said that digital ad spend in the US is projected to total more than US$58 billion in 2015 and is projected to reach US$93.7 billion by 2019, with much growth acceleration coming from digital video.
Ukrainian telco Kyivstar has added a number of new channels to its TV programming line-up.The operator has added news channel PravdaTUT to its line-up, along with Ukrainian information and music service RTI, a TV version of a radio service.Kyivstar has also added Tsentralny Kanal, a channel focusing on life and culture in the Ukrainian capital, Kyiv, and Radio Free Europe/Radio Liberty and Voice of America’s news service Nastoyashcheye Vremya (Current Time).The latter channel was recently added to rival cable operator Volia’s TV offering.Last week Kyivstar also removed Russian channel Karusel from the line-up of its Home TV package after the country’s National Council for Television and Radio Broadcasting removed the channel from the list of service that it said met the requirements of the European Convention on Trans-frontier Television.