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New coating creates ‘superglass’

first_imgA new transparent, bioinspired coating makes ordinary glass tough, self-cleaning and incredibly slippery, a team from Harvard University reported online July 31 in Nature Communications.The new coating could be used to create durable, scratch-resistant lenses for eyeglasses, self-cleaning windows, improved solar panels and new medical diagnostic devices, said principal investigator Joanna Aizenberg, who is the Amy Smith Berylson Professor of Materials Science at the Harvard School of Engineering and Applied Sciences (SEAS), a core faculty member at the Wyss Institute for Biologically Inspired Engineering, and professor of chemistry and chemical biology.The new coating builds on an award-winning technology that Aizenberg and her team pioneered called Slippery Liquid-Infused Porous Surfaces (SLIPS)—the slipperiest synthetic surface known. The new coating is equally slippery, but more durable and fully transparent. Together these advances solve longstanding challenges in creating commercially useful materials that repel almost everything.The tiny, tightly packed cells of the honeycomb structure, shown here in this electron micrograph, make the SLIPS coating highly durable.SLIPS was inspired by the slick strategy of the carnivorous pitcher plant, which lures insects onto the ultraslippery surface of its leaves, where they slide to their doom. SLIPS’ thin layer of liquid lubricant allows liquids to flow easily over the surface, much as a thin layer of water on an ice rink helps an ice skater glide. (See video.) Unlike earlier water-repelling materials, SLIPS repels oil and sticky liquids like honey, and it resists ice formation and bacterial biofilms as well.Aizenberg and her colleagues sought to develop a coating that accomplishes this, but extends those capabilities further. The new SLIPS design surpasses existing coatings, which can be quite robust but not slippery or transparent, or, alternatively, transparent but not mechanically stable or repellent enough, Aizenberg said.“The SLIPS-like coating is mechanically stable and has a long-lasting performance as a slippery surface because it’s composed of a sturdy honeycomb-like structure that holds lubricant in tiny, container-like pits,” said lead author Nicolas Vogel, a postdoctoral fellow in applied physics at SEAS.To create this coating, the researchers corral a collection of tiny spherical particles of polystyrene, the main ingredient of Styrofoam, on a flat glass surface like a collection of Ping-Pong balls. They pour liquid glass on them until the balls are more than half buried in glass. After the glass solidifies, they burn away the beads, leaving a network of craters that resembles a honeycomb. They then coat that honeycomb with the same liquid lubricant used in SLIPS.Applying the SLIPS-like coating to glass slides confers unmatched mechanical robustness. Slides treated this way withstood damage and remained slippery after various treatments that can scratch and compromise ordinary glass surfaces and other popular liquid-repellent materials, including touching, peeling off a piece of tape, and wiping with a tissue.These glass slides with the SLIPS coating also repelled a variety of liquids, just as SLIPS does, including water, octane, wine, olive oil and ketchup. And, like SLIPS, the coating reduced the adhesion of ice to a glass slide by 99 percent. Keeping materials frost-free is important because adhered ice can take down power lines, decrease the energy efficiency of cooling systems, delay airplanes, and lead buildings to collapse.By adjusting the width of the honeycomb cells to make them much smaller in diameter than the wavelength of visible light, the researchers made the coating completely transparent.The researchers were also able to apply the SLIPS-like coating to glass slides in a pattern that confines liquid to specific areas—an ability that’s important for various lab-on-a-chip applications and medical diagnostics.“We set ourselves a challenging goal: to design a versatile coating that’s as good as SLIPS but much easier to apply, transparent, and much tougher—and that is what we managed,” Aizenberg said.The team is now honing its method to better coat curved pieces of glass as well as clear plastics such as Plexiglas, and to adapt the method for the rigors of manufacturing.“Joanna’s new SLIPS coating reveals the power of following nature’s lead in developing new technologies,” said Donald E. Ingber, founding director of the Wyss Institute, Professor of Bioengineering at SEAS, and Judah Folkman Professor of Vascular Biology at Harvard Medical School and Boston Children’s Hospital. “We are excited about the range of applications that could use this innovative coating.”This work was funded by the Advanced Research Projects Agency—Energy (ARPA-E), the Air Force Office of Scientific Research, and the Wyss Institute. Nicolas Vogel received funding from the Leopoldina Fellowship program. In addition to Vogel and Aizenberg, the research team included: Rebecca A. Belisle, a former Wyss research assistant who is now a graduate student in materials science and engineering at Stanford University; Benjamin Hatton, formerly a research appointee at SEAS and a technology development fellow at the Wyss Institute who is now an assistant professor of materials science and engineering at the University of Toronto; and Tak-Sing Wong, a former postdoctoral research fellow at the Wyss Institute who is now an assistant professor of mechanical and nuclear engineering at Penn State University.last_img read more

Costamare Secures Loan, Reports Strong Quarter

first_imgGreece-based containership owner Costamare has entered into a loan agreement to finance the acquisition of 7,471 TEU containership, Maersk Kowloon.The 2005-built vessel was acquired in the previous quarter and commenced its 5-year charter to Maersk Line.The loan facility, agreed in August 2017 with an undisclosed European financial institution, will be repayable over 5 years, Costamare said.The company unveiled the financing deal as part of its financial report for the third quarter and nine months ended September 30, 2017.Although its net income decreased for the nine-month period to USD 70.2 million from USD 92.7 million seen in the first three quarters of 2016, Costamare’s net income for the third quarter rose.The company ended the quarter with a net income of USD 24.1 million, compared to a net income of USD 20.6 million reported in the third quarter of 2016.In August and September 2017 the company sold the 1988-built container vessels Mandraki and Mykonos for demolition and recorded an accounting gain of USD 1.5 million.last_img read more

Color Run raises nearly $10,000

first_img Drive-thru flu shot clinics scheduled – September 18, 2020 Real Estate Transfers Week of Sept. 17 – September 18, 2020 Bio ELLSWORTH — Almost 200 runners participated in the Ellsworth Public Library’s Rainbow Readers Race on Sunday. The color run raised almost $10,000 for the library’s building and renovation fund. Latest posts by (see all)center_img Latest Posts Donald Trump Jr. to host Holden campaign event – September 18, 2020 This is placeholder textThis is placeholder textlast_img

The Latest: Bach says future may see fewer sports events

first_imgThe Italian sports minister says it is increasingly unlikely the soccer season will resume.Italian Premier Giuseppe Conte announced Sunday that professional sports teams can resume training on May 18. That means Serie A could resume playing games in June.But Vincenzo Spadafora tells Italian television channel LA7 that “resuming training absolutely does not mean resuming the season.”He adds that he sees “the path to restarting Serie A getting ever narrower” and that if he was among the presidents of soccer teams “I would be thinking about next season.”The French government called off the season in that country on Tuesday and Spadafora says that could push Italy to do the same. April 29, 2020 This year’s Vuelta was set to start on Aug. 14. New dates have not been announced.___More AP sports: https://apnews.com/apf-sports and https://twitter.com/AP_Sports,Tampa Bay Lightning advance to face Dallas Stars in Stanley Cup finals, beating New York Islanders 2-1 in OT in Game 6 The Latest: Bach says future may see fewer sports events Bach cited “financial pressure” on organizers and the need to address climate change and says “we may also have to look more closely into the proliferation of sports events.”The IOC president cautions in a letter to Olympic officials and athletes worldwide “the current health crisis will lead to a long and deep economic crisis” which will affect sports.Bach says “governments must include sport in their economic support programs” so it can be part of a worldwide recovery.The IOC has proposed saving money on staging the Tokyo Olympics in 2021 to help offset the Olympic body’s extra costs of hundreds of millions of dollars because of the postponement.___center_img Share This StoryFacebookTwitteremailPrintLinkedinRedditThe Latest on the effects of the coronavirus outbreak on sports around the world:___IOC President Thomas Bach says the future of sports after the coronavirus pandemic might mean fewer international events. ___The Spanish Vuelta cycling race will not start in the Netherlands as originally planned.This year’s race was set to begin in the Dutch regions of Utrecht and North Brabant but the changes in the cycling calendar because of the coronavirus pandemic forced organizers in the Netherlands to cancel the country’s participation.Dutch organizers say the project “had been designed as a big summer party” which would not be able to happen because of the changes in the Vuelta’s original dates. They say they “preferred to request the official departure’s cancellation.”Spanish organizers say they hope to plan a new start in the Netherlands “in the very near future.” Associated Press last_img read more

USC overcomes poor shooting, ends streak

first_imgIt won’t be remembered as an offensive masterpiece, but the USC women’s basketball team has to feel good after snapping a five-game losing streak Saturday night against Washington.USC (14-11, 8-6) scraped and clawed its way to a narrow 56-51 win over the Huskies (9-16, 4-11) despite shooting just 34 percent from the field. A newfound commitment to rebounding and tenacious defense carried the Women of Troy to victory.“We do a lot of rebounding and beat on each other in practice,” junior center Kari LaPlante said. “It’s finally paid off. We came out there with a lot of energy and passion.”Redshirt junior guard Jacki Gemelos and LaPlante said the crowd and an unusual pregame pep talk by USC coach Michael Cooper gave the Women of Troy an added boost. Cooper played the team a recording of a halftime speech by former Indiana coach Bob Knight.“It was inspiring,” Cooper said. “It had me inspired earlier in the day so I thought I’d play it for the team.”Whatever Knight said in the speech worked. USC was the more active team for much of the game and came up with seemingly every loose ball. In an unfamiliar turn of events, the Women of Troy outrebounded Washington 36-30 and grabbed 15 offensive rebounds.Freshman forward Christina Marinacci played well in her second career start, and set the tone for the game with three early offensive rebounds. She finished with five points, four rebounds and three steals.“Starting her gives us another player that’s going to go with [LaPlante] and put her head under the basket,” Cooper said. “Good things happen when you get a rebounder like that.”Poor shooting by Washington helped the Women of Troy take a 28-22 lead into the locker room at halftime. The Huskies made just 8-of-27 shots in the half and turned the ball over nine times.Washington guard Kristi Kingma kept the Huskies close in the first half with 12 points. Kingma finished with a game-high 15 points but was largely ineffective in the second half.“Our focus [in the first half] was on [guard Sami] Whitcomb,” Cooper said. “I don’t think we made too much of an adjustment in the second half, other than [we] just paid more attention to her and guarded her.”A slow start to the second half by USC allowed the Huskies to build a 44-38 lead with 10 minutes left in the game. Washington knocked down nine of its first 12 shots in the half and looked to be well on its way to victory before a series of clutch plays by USC turned the game around.Senior guard Daniela Roark started the run with a baseline three-pointer that pulled the Women of Troy to within two points. Sophomore guard Briana Gilbreath tied the game at 44 with an offensive rebound and putback. Gemelos knocked down a deep three-pointer against the shot clock to give USC a one-point lead it would not relinquish.The play of the game came courtesy of LaPlante, who hit a turnaround jumper in the post that gave USC a 54-51 lead with 22 seconds left. Sophomore guard Ashley Corral stole the ball and knocked down two free throws for the final margin.Gemelos led the Women of Troy with 13 points in just 19 minutes. LaPlante and Gilbreath added 10 points apiece for USC.“It’s not bittersweet anymore,” Gemelos said after picking up her first win in five tries. “It feels great.”USC beat the Huskies 69-65 earlier this season in Seattle. The Women of Troy travel north to take on the Oregon schools next week.last_img read more

Syracuse lacrosse opponent preview: What to know about No. 11 Duke

first_imgThen-junior attack Tim Barber secured the game-winning goal with 3:15 left in the game, before the Orange barely staved off two late goals by the Blue Devils to cut the deficit to one. The game was a fragment of what the team’s regular-season matchup was like, when SU stomped on Duke in the Carrier Dome, 19-7. In that game, Syracuse held 6-foot-5 midfielder Myles Jones to just one point, and Ben Williams went 14-of-22 from the X.“Our poles did a really good job on him,” defender Brandon Mullins said of defending Jones. “Peter Macartney and Scott Firman held him in check. We got up on him early and I think it kind of rattled their team as a whole.”In the postseason rematch, the ultra-athletic Jones burned Syracuse for five points, and Williams met his match in Kyle Rowe at the X, who won 19-of-30 draws. SU still just barely skirted by in the championship win.The Duke report: The Blue Devils impressively have three 20-plus goal-scorers, and three more who have between 15-18 tallies this season. By comparison, Nick Mariano is the Orange’s leading goal-scorer with 14, with Dylan Donahue trailing at 11, and three more tied with 10, though the Blue Devils have played four more games than SU.“Very good team,” Syracuse head coach John Desko said of Duke. “The offensive end of the field they really put six really good players out there. Their midfield is more of a motor than their attack. I think their attack, they have some capable dodgers back there.”It’s a midfield anchored by Jones, a perennial Tewaarton Award candidate. He has both 18 goals and assists, showcasing a balanced style of play that usually doesn’t accompany a player of his size.Rowe has returned as the Blue Devils’ primary faceoff man, and he’s won at a 69 percent clip from the X. He kept SU’s Williams in check like no other opponent did last season, an effort not lost on Desko less than a year later.Starting goalkeeper Danny Fowler returns this year, and he’s allowed a touch over nine goals per game this season, while Syracuse’s nearly 14 goals per game is fourth-best in the nation.“We don’t want this goalie to get hot,” Desko said. “He’s been a little bit up and down but he’s had some big saves for them. So we’ve got to figure him out, so we’ve gotta be patient.” Related Stories Derek DeJoe has become Syracuse’s most efficient shooterSyracuse leans on Kevin Rice, Randy Staats to beat Duke for 1st ACC championship in program historySyracuse overcomes Ben Williams’ struggles at faceoff X, pulls out win over DukeSyracuse locks down Duke midfielder Myles Jones with thorough game plan in 19-7 winFast reacton: 3 quick takeaways from No. 3 Syracuse’s 11-10 overtime loss to No. 8 Johns Hopkins How Duke beats Syracuse: The Orange has shown weakness when getting blitzed on offense by teams with a plethora of options. Last week, Syracuse’s man-down defense blinked and yielded two crucial goals late in the second half. The Blue Devils bring forth a comprehensive, dynamic offense, and it deserves to be emphasized that the offense’s best all-around player (Jones), isn’t even on the attack.If the core of offensive players made up of Jones, Deemer Class, Jack Bruckner and others can bully Syracuse around enough and force the Orange into causing unnecessary penalties, scoring lanes will begin to open up for Duke.The Blue Devils will also be in a great spot if Rowe can replicate last season’s effort against Williams on Saturday. Syracuse is only as great as its offense is, and its offense is only as great as Williams is, who feeds his offensive teammates the ball after dashing from the X.“They have a great faceoff guy, so it’ll be a real battle there,” Desko said. “Teams might have the ball equally, which means we have to do a better job offensively, not get the turnovers we had a week ago and just play better lacrosse all-around.”Numbers to know:3 – Nick Mariano, Syracuse’s leading goal-scorer, has scored three goals in three straight games, and three goals in four of the last five games.16 – In each game this season Williams has won at least 16 faceoffs, an amount that would boost the Orange on Saturday afternoon going up against Rowe.31 – While taking a backseat in his scoring responsibilities this season, Dylan Donahue still holds the second-longest goal-scoring streak in the country at 31 straight games.Player to watch: Myles JonesIt’s difficult to pick against one of the largest physical specimens in the college lacrosse landscape. His size allows him to effortlessly push aside defenders, and Mullins said the Orange has been using 6-foot-3 midfielder Pat Carlin to mock Jones’ presence on scout team practice this week. Jones, the No. 1 overall pick in this year’s Major League Lacrosse draft, will likely force the defense to slide and how the rest of SU’s unit responds could dictate the outcome of the game. Comments Published on March 25, 2016 at 11:29 am Contact Connor: [email protected] | @connorgrossman Logan Reidsma | Senior Staff Photographer Syracuse isn’t alone trying to wash away the sting of a blown, overtime loss. Three days after SU allowed Johns Hopkins to score the game’s final three goals last Saturday in an 11-10 win, Duke surrendered an 8-3 lead by allowing Air Force to score seven of the game’s last eight goals to snatch a 10-9, overtime win.Now the two losing teams clash for their annual regular-season meeting, this one held at Koskinen Stadium in Durham, North Carolina. The No. 3 Orange (5-1, 1-0 Atlantic Coast) square off with the No. 11 Blue Devils (6-4) on Saturday at noon.Here’s everything you need to know about this weekend’s matchup.All-time series: Syracuse leads 9-5Last time they played: Playing its second game in three days, SU took down Duke, 15-14, en route to its first ACC tournament championship. The Orange was fueled off a combined 12 points from attacks Kevin Rice and Randy Staats, and senior midfielder Nicky Galasso also chipped in a hat trick. Of the 22 points Syracuse benefitted from, only five of those remain within players still on the roster.AdvertisementThis is placeholder text Facebook Twitter Google+last_img read more

This Republican says pornography is a reason for school shootings

first_imgThese 10 charts show the gun culture in the US, and break down deaths and mass shootings.Now, one Republican is offering some reasons for the surge of school shootings lately. Rep. Diane Black, who is running for governor of Tennessee, made the comments to local pastors at a meeting last week.HuffPost obtained the audio clip. In it, Black claims the country’s youth are ‘going in the wrong direction’.‘There are not any more guns but why does this keep happening?’ she asks, then gives reasons like deterioration of the family, violent movies, and, finally, pornography.‘It’s available on the shelf when you walk in the grocery store. Yeah, you have to reach up to get it, but there’s pornography there,’ she continued.‘All of this is available without parental guidance. I think that is a big part of the root cause.’Ultimately, she said she believes a decrease in violence will come from focusing on the family. eTN Chatroom for Readers (join us) Share this:TwitterFacebookLike this:Like Loading… The United States has a gun problem, particularly with mass shootings and school shootings. Society isn’t good for youth | Photo: Facebook/Rep. Diane Blackcenter_img GAYSTARNEWS- She further told the pastors: ‘We need to find ways that even if we have a pregnancy where both parents aren’t married they still understand they are a parent and what that momma is carrying is the most important thing.’Teens rising upMost recently, a shooter killed eight students and two teachers at a school in Texas.The most prominent this year to reignite this conversation in full force was the Parkland shooting. The Florida shooting left 17 students and faculty members dead. Numerous LGBTI organizations condemned the attack.However, instead of students turning towards violence, they have instead adopted activism.Though it was not a school shooting, one of the most violent mass shootings in recent years, the Pulse nightclub massacre, is preparing for the two-year mark soon.Got a news tip? Want to share your story? Email us . ‘Skinhead lesbian’, House candidate attacks Parkland survivor Emma GonzalezEmma Gonzalez, Parkland’s gun control activist honored with LGBTI awardOrlando rally marks two years since Pulse shootingRead the full article on Gaystarnews:  :https://www.gaystarnews.com/article/republican-pornography-school-shootings/last_img read more