Melania Trump honors Sandhya Ekneligoda at US event

“Sandya represents the dedication and perseverance of women from all ethnicities across Sri Lanka who are seeking information about their missing loved ones,” said U.S. Ambassador to Sri Lanka Atul Keshap.  “The American people support their efforts as a step towards a brighter future of truth, reconciliation, and lasting peace for all Sri Lankans.”“Pursuing the truth is not a crime.  Protecting the perpetrators is,” said Sandya about her campaign.The 13 honorees were chosen for their advocacy on issues as diverse as combatting early child marriage, gender-based violence, human trafficking, improving interfaith relations, and preserving the environment.  They will travel to cities across the United States to discuss the challenges they have faced and inspire others to action. Mrs. Trump applauded the honorees as “true heroes,” saying they’ve “fought on the frontlines against injustice.”The First Lady declared that “we are all ultimately members of one race. The human race.” Ekneligoda’s husband, a well-known political cartoonist and journalist disappeared in January 2010 but she resolved to seek the truth about his fate. She appeared in court more than 80 times in the face of obstructionist judges and authorities. US First Lady Melania Trump, today, honored 13 extraordinary women, including Sandhya Ekneligoda, with the Secretary of State’s International Women of Courage Award.The award recognizes women around the globe who have shown exceptional courage and leadership in advocating for women’s rights, empowerment, and justice, often at great personal risk. The State Department said that a member of the majority Sinhalese community in Sri Lanka, Sandhya has become a symbol for the many thousands of persons — including from the Tamil minority — who have suffered the loss of disappeared relatives over the course of the 27-year civil war and earlier insurrections. Since the inception of this award in 2007, the Department of State has honored nearly 100 women from 60 different countries, including Jansila Majeed of Puttalam in 2010 for her advocacy on behalf of internally displaced persons. (Colombo Gazette) read more

In Uzbekistan Annan discusses pressing international concerns with senior officials

Arriving at midday in the capital, Tashkent, the Secretary-General spoke briefly at the airport with Foreign Minister Abdulaziz Komilov before meeting with the UN country team, according to a UN spokesperson in New York. The Secretary-General then visited the Uzbek Parliament, where he met privately with committee chairs and other parliamentary leaders to discuss democratic and economic reforms, environmental issues and the protection of women. The talks also focused on ways the UN could assist in those areas, spokesperson Hua Jiang said. After the talks at the Parliament, Mr. Annan met with President Islam Karimov and with Foreign Minister Abdulaziz Komilov. At a press encounter afterwards, Mr. Annan said he and the President had discussed the international fight against terrorism, water management, regional environmental issues, good governance, and cooperation between the Government and the UN High Commissioner for Human Rights. Of UN-Uzbek relations, the Secretary-General said, “They’re good, and we would want to strengthen it further.” In the evening, the President hosted a dinner in honour of the Secretary-General and his wife, Nane. Before travelling to Uzbekistan, the Secretary-General concluded his visit to Kazakhstan this morning, meeting with the UN country team to discuss the Kazakh Government’s progress in achieving the Millennium Development Goals. After that, Mr. Annan addressed both houses of the Kazakh Parliament, noting the challenges of globalization, which in some areas has led to a reaction where communities turn inward – increasing the dangers of intolerance and xenophobia. By contrast, the Secretary-General said, the people and Parliament of Kazakhstan “are living examples of the dialogue among civilizations.” read more

CPP Investment Board buys share of Brazilian shopping centre company for 480M

by The Canadian Press Posted Jul 29, 2013 6:29 pm MDT CPP Investment Board buys share of Brazilian shopping centre company for $480M AddThis Sharing ButtonsShare to TwitterTwitterShare to FacebookFacebookShare to RedditRedditShare to 電子郵件Email TORONTO – The Canada Pension Plan Investment Board said Monday it has signed an agreement to acquire a 27.6 interest in Brazil’s Aliansce Shopping Centers S.A.The US$480 million deal with General Growth Properties Inc. is expected to close in fall 2013.“Acquiring an interest in Aliansce allows us to gain scale in a key target segment with a diversified portfolio of high-quality, modern shopping centres located throughout Brazil including the economically dominant southeast and fast-growing northeast regions,” said Peter Ballon, vice-president and head of real estate investments for CPPIB in the Americas.“We look forward to working with Aliansce’s experienced management team, whom we know well, as we look to expand our retail platform in Brazil.”Aliansce owns, manages and develops enclosed shopping centres in Brazil, and has a portfolio of 17 assets and two development projects located in various regions across the country including Sao Paulo, Rio de Janeiro and Salvador.Prior to this transaction, CPPIB held a real estate portfolio in Brazil valued at more than C$900 million. The portfolio includes interests in retail and office properties.The CPP Investment Board is a professional investment management organization based in Toronto that invests money not needed by the Canada Pension Plan to pay benefits. The CPP fund currently totals some $183.3 billion. read more

Beyond chess Computer beats human in ancient Chinese game

by Malcolm Ritter, The Associated Press Posted Jan 27, 2016 2:33 pm MDT Last Updated Jan 27, 2016 at 3:00 pm MDT AddThis Sharing ButtonsShare to TwitterTwitterShare to FacebookFacebookShare to RedditRedditShare to 電子郵件Email FILE – A player places a black stone while his opponent waits to place a white one as they play Go, a game of strategy, in the Seattle Go Center, Tuesday, April 30, 2002. The game, which originated in China more than 2,500 years ago, involves two players who take turns putting markers on a grid. The object is to surround more area on the board with the markers than one’s opponent, as well as capturing the opponent’s pieces by surrounding them. A paper released Wednesday, Jan. 27, 2016 describes how a computer program has beaten a human master at the complex board game, marking significant advance for development of artificial intelligence. (AP Photo/Cheryl Hatch) Beyond chess: Computer beats human in ancient Chinese game NEW YORK, N.Y. – A computer program has beaten a human champion at the ancient Chinese board game Go, marking a significant advance for development of artificial intelligence.The program had taught itself how to win, and its developers say its learning strategy may someday let computers help solve real-world problems like making medical diagnoses and pursuing scientific research.The program and its victory are described in a paper released Wednesday by the journal Nature.Computers previously have surpassed humans for other games, including chess, checkers and backgammon. But among classic games, Go has long been viewed as the most challenging for artificial intelligence to master.Go, which originated in China more than 2,500 years ago, involves two players who take turns putting markers on a checkerboard-like grid. The object is to surround more area on the board with the markers than one’s opponent, as well as capturing the opponent’s pieces by surrounding them.While the rules are simple, playing it well is not. It’s “probably the most complex game ever devised by humans,” Dennis Hassabis of Google DeepMind in London, one of the study authors, told reporters Tuesday.The new program, AlphaGo, defeated the European champion in all five games of a match in October, the Nature paper reports.In March, AlphaGo will face legendary player Lee Sedol in Seoul, South Korea, for a $1 million prize, Hassabis said.Martin Mueller, a computing science professor at the University of Alberta in Canada who has worked on Go programs for 30 years but didn’t participate in AlphaGo, said the new program “is really a big step up from everything else we’ve seen…. It’s a very, very impressive piece of work.”___Online:Information about Go: Nature: Malcolm Ritter at His work can be found at read more

NDP calls proposed law to define privatize a back door to selling

by Jennifer Graham, The Canadian Press Posted Oct 27, 2016 10:57 am MDT Last Updated Oct 27, 2016 at 5:43 pm MDT AddThis Sharing ButtonsShare to TwitterTwitterShare to FacebookFacebookShare to RedditRedditShare to 電子郵件Email REGINA – Saskatchewan Premier Brad Wall is defending proposed legislation that defines the term “privatize,” which the Opposition says is a back door to allow Crown corporations to be sold.The province tabled a bill Wednesday that it says clarifies what would be considered privatization and gives the government flexibility to restructure Crown corporations while maintaining ownership.The proposed law would allow the government to sell up to 49 per cent of a company without it being considered privatization.“I think this definition ensures that we will not be privatizing the Crown corporations per that Act, that we will not see the control lost in Saskatchewan, but that we can have perhaps some equity investment in the Crowns or partners in the Crowns,” Wall said Thursday.“That could see them healthier in terms of their balance sheets and maybe expanding and creating new jobs in Saskatchewan, while not losing those Crown corporations to the province.”NDP Leader Trent Wotherspoon said Crown corporations deliver a huge economic and public benefit.Crown Investments Corp., the holding company for the province’s commercial Crown corporations, provided a $297.2 million dividend to the government’s general revenue fund in 2015-2016.“This would be a massive erosion of control,” said Wotherspoon.“It’s a major betrayal and we’ll fight it every step of the way.”Wotherspoon also said that Wall has repeatedly promised not to privatize Crowns and never mentioned selling equity in the corporations in the Saskatchewan election in April.“And if the premier wanted to advance a privatization scheme, he should have been honest to Saskatchewan people,” said Wotherspoon.The issue of privatization has been hotly debated in Saskatchewan for more than a decade.In the 2003 provincial election, the NDP repeatedly said the Saskatchewan Party would sell the Crowns.At the time, Saskatchewan Party leader Elwin Hermanson said that he had no plan to privatize Crowns, but would consider offers from the private sector. It was considered the party’s downfall and the NDP won the election.The legislation does not mean that a sale of SaskTel, the provincially-owned telecommunications company, is completely off the table.But the premier said any offer for SaskTel would have to “check off a whole bunch of boxes,” including generate a significant amount of cash — preferably enough to eliminate the debt — create jobs and provide better phone service.Wall insists there’s no offer right now.He said privatizing SaskTel or any Crown corporation would need to be approved by the public.“We’ve now defined privatization and if we were to move on a privatization, which would be selling more than 50 per cent of a company to someone else, that’s not our call because we’ve campaigned against that,” said Wall.“And so we would at least offer that to the people to decide in a referendum.” NDP calls proposed law to define ‘privatize’ a back door to selling Crowns read more

Mens basketball Chris Holtmann beat North Carolina as a firstyear head coach

Then-Butler head coach Chris Holtmann coached the 2014-15 Bulldogs to a surprise 23-11 with a win against No. 5 North Carolina in his first season as head coach. Credit: Courtesy of John Fetcho | Butler AthleticsChris Holtmann wasn’t officially the guy until after he secured the biggest win of his early coaching career.He was Butler’s interim head coach at the start of the 2014-15 season and took his team to the Battle 4 Atlantis tournament in the Bahamas during Thanksgiving weekend. Their first opponent: No. 5 North Carolina.“To be honest,” former Butler guard Alex Barlow said, “I didn’t know what to expect.”Barlow said he wondered if the moment of Holtmann’s first truly big game as head coach would get to him.It did not.Butler shocked the Tar Heels, 74-66. The Bulldogs shot only 30.6 percent from the field and turned the ball over 19 times, but they grabbed 29 offensive rebounds and allowed just eight fastbreak points.That win put Butler on course for a 23-11 season and an NCAA Tournament bid, following a 14-17 season the year prior. It also was a main factor in Holtmann’s promotion from interim to full-time head coach. He then quickly entered the conversation of college basketball’s best up-and-coming coaches.“We got out there, and it was just like we were playing Chattanooga,” Barlow said. “It had no different feel. And at that moment, I’m like, we got ourselves a really good coach.”Holtmann had bested future hall-of-famer Roy Williams in his first season as a head coach at a major program.He has a similar opportunity Saturday when Ohio State battles the fifth-ranked Tar Heels in New Orleans.At 10-3 with wins against Wisconsin and Michigan, the Buckeyes have been somewhat of a surprise in college basketball in the first year of the Holtmann regime. Picked to finish in the bottom third of the Big Ten by several media outlets, Ohio State is now in a similar position to that Butler team three years ago. An upset win against the Tar Heels can vault the Buckeyes into the national picture and significantly boost their NCAA Tournament resume before January.“We’re going to really talk to our guys about just staying in the moment and staying really focused on doing what you know is expected to do and then cut loose and play aggressively,” Holtmann said. “I don’t have any, at least I haven’t had any kind of Knute Rockne speeches in my bag.”He didn’t have that moment in 2014 either. There wasn’t one or two main factors to why Butler won that day. Barlow and Kellen Dunham — another Butler guard on that team — said it had to do with Holtmann simply convincing them they were the better team.“He believed in us from the start,” Dunham said. “He’s like, ‘Guys, I’m serious. I look around the country and I’d go with you guys every day of the week. I’m not going to trade any one of you guys for anybody.’ “For a coach to say that, as cheesy as it sounds, it’s like, man, I want to go dive on the floor for this guy.”Holtmann had three days to prep his players before they played North Carolina in the Bahamas for the first game of the 12-team tournament. Normally, a player might expect a coach to have a higher level of intensity in the practices leading up to that caliber of a showdown. It was quite the opposite.Dunham said Holtmann was pretty much the same the whole week as he was preparing for other games. He tried to drown out the hype the media put on the game and laid out the tendencies of each player on the scouting report, humanizing would-be lottery picks in future NBA drafts. The only difference, Barlow said, was how much they practiced on transition defense and rebounding.“If you would have told me we shot as poorly as we did, would we have won the game? I would’ve been surprised,” he said. “But we got so many extra possessions, we had a lot of 3s and we did a great job with all of our defensive keys.”Alex Barlow (3) celebrate near the end of a 56-48 win against Texas in the second round of the NCAA Tournament at the Consol Energy Center in Pittsburgh on March 19, 2015. He was Butler’s leading scorer against North Carolina in 2014. Credit: Courtesy of TNSButler trailed by just three at halftime and executed its offense well, despite a low shooting percentage. Barlow, who had 11 points at halftime, said he remembered Holtmann entering the locker room and delivering the same message, instilling the same confidence he had all week with the players — they were going to win that game.Barlow hit two 3s to open the half for his game-high 17 points and Butler didn’t turn back. With stellar play on the boards and getting back in transition — something echoed by Ohio State forwards Jae’Sean Tate and Keita Bates-Diop Thursday — Butler made a statement it could beat any team.The same statement Ohio State hopes to make Saturday.Butler led by as much as much as 14 with eight minutes left. North Carolina ended up cutting its deficit to three with 37 seconds remaining.At any point where Holtmann’s inexperience in big games would show, this had to be the moment. The double-digit lead had shrunk to one possession. However, Barlow said Holtmann didn’t show an ounce of nervousness, which reminded him of former Butler head coach Brad Stevens, now the Boston Celtics head coach.“I think coach Holtmann’s kind of like that in the fact that he was always like, ‘Guys, we’re going to win this game,” Barlow said.Dunham said he gets frustrated thinking about how poorly he shot in that game — 3-for-17 — but remembers that game as one that put the Bulldogs on a track to the NCAA Tournament and as a turning point in the team’s trust in Holtmann as the guy moving forward.“It instilled a lot of confidence that we could beat just about anybody in the country if we buy into what coach Holtmann’s saying,” he said.Ohio State has surpassed early expectations. That Butler team did the same. The only difference is Holtmann hasn’t had that signature win against a ranked opponent with the Buckeyes just yet. The same opponent can provide Holtmann with another career-defining victory in his first season at another major program.Ohio State junior guard C.J. Jackson (3) talks with head coach Chris Holtmann during a timeout in the first half of the game against Radford on Nov. 12. Credit: Jack Westerheide | Photo Editor“Whether or not they can beat North Carolina this weekend, I don’t know … But what I do know is those guys will believe they can beat them because of coach Holtmann, because of the assistant coaches there with them,” Barlow said. “Coach Holtmann has gotten those guys to buy in. He’s gotten them to believe they’re better than what they were supposed to be. And when you have that type of confidence, you can beat anybody on any given night.”This won’t be Holtmann’s only chance in his inaugural season to secure a win against a top team. However, the opportunity presented to him against the Tar Heels comes with the territory of knowing how to complete the task.“It was one of your coaching moments that you reflect back on and you’ll never forget because when you’re coaching a new group and you just got the position and you’ve been named interim and you’re kind of on a day-to-day contract,” Holtmann said Thursday when asked about the 2014 game. “To have a moment like that for us as a group and as a team after what we had been through was pretty special given the caliber of program that we were playing.” read more

Which Positions Teams Valued Most in the 2014 NFL Draft

The first pick of this year’s NFL Draft, Jadeveon Clowney, is a defensive end, and his selection marks the first time since 2006 that a defensive player was taken No. 1 overall. But does that mean teams put more emphasis on defensive prospects as a whole this year? And while we’re at it, how much did they invest in each position?We can begin to answer these questions by looking at how many Jimmy Johnson draft-value-chart points teams devoted to each position (3,000 points for the top pick, 2,600 for the second, etc.). “The Chart,” as it’s affectionately known in NFL circles, isn’t a very good gauge of the relative value of each draft spot, but that’s mainly because NFL general managers tend to overvalue the right to pick early. Research on draft-day trades has shown The Chart does a great job of describing how valuable teams perceive each slot to be, which is a more relevant shade of meaning for our questions anyway.As it turns out, while Clowney and the 3,000 draft points the Houston Texans spent on him were a feather in the cap for defense, teams spent the majority of their draft points on the other side of the ball this year. Specifically, they used 52.9 percent of points on players listed at offensive positions, 47.1 percent on defenders and 0.03 percent (21.1 draft points) on punters and kickers.How do those proportions compare to other drafts? Well, last year, the numbers were flipped: 52.2 percent of draft points were devoted to defense, 47.6 to offense and 0.2 percent to specialists. The long-term tendency, though, is somewhere in between. Over the last 10 years’ worth of drafts, the average NFL team spent 50.3 percent of its draft points on offense, 49.3 on defense and 0.3 percent on special teamers. Here’s what that looks like graphically:Positionally, you might think this was a big year for defensive linemen, given Clowney’s top billing. But overall, defensive linemen received only 17.7 percent of all draft points, 3 percent below the position’s overall 2004 to 2014 average of 20.7 percent. (Meanwhile, their counterparts on the offensive line were up 3.4 percentage points to 20.5 percent.) Quarterbacks were also down 1.8 percent compared to their long-term average, and running backs had a 3.9 percent shortfall. The big winners of this year’s draft, then, appear to be pass-catchers: Teams spent 3.5 percent more on wide receivers and 1.3 percent more on tight ends than those positions’ usual distribution.Here’s the summary of the percentage of draft points spent on each position over the last 10 years of drafts:These long-term percentages can also give us an idea of how general managers tend to value positions relative to one another, but we need to adjust for how many players in each position are typically on the field at any given time — something we can do thanks to Pro Football Focus’s snap counts. Armed with that data, I computed an “index” of how important teams seem to consider a given position (given the amount of draft investment in it) relative to the average player on the same side of the ball.Teams spent 15.2 percent of their points on running backs over the past decade, despite running backs only making up, on average, 1.3 of the 11 offensive players (11.8 percent) on the field for any given snap. Running backs have an index of 128, then — meaning teams used 28 percent more draft points on them than we’d expect.This metric is far from perfect — the draft is a fundamentally forward-looking endeavor, while the snap counts are retrospective and track an entirely different set of players — but it provides a good reference point when comparing this year’s draft to the long-term valuation of each position. read more

Exhausted filthy but unbowed the birth of the SAS

first_imgWidely dispersed, the assault force was in no position to mount an attack and decided to trek the 36 hours back to the rendezvous point to be collected by their “taxi service” of LRDG trucks.By the end of the operation, 32 of the 53 “operatives” had either been lost, killed or captured. Men of the SAS, returning from a 3-month trip behind enemy lines during war in North AfricaCredit:Hulton Archive/Getty Images Capt Jake Easonsmith of the LRDG who took the photograph of the aftermath of Operation SquatterCredit:The family of the late Lt-Col ‘Jake’ Easonsmith, DSO, MC A wealth of detail of the early days of the Special Air Service (SAS)  has been disclosed in a recently completed 13-year-project to commemorate every member of the regiment killed in the Second World War.The 800-page roll of honour for the SAS and its forerunner, the Long Range Desert Group (LRDG), contains the stories of 374 men who died during the conflict.Published for the 75th anniversary of the SAS’s founding, the three-volume memorial  has been compiled from an exhaustive trawl of service records, operational reports, medal citations, memoirs, diaries and letters from next of kin.Its author, a former soldier who uses the pen name Ex-Lance-Corporal X, has shed light on the earliest chapters of the regiment and saved stories that risked being lost as veterans died out. On December 9 the SS Sebastiano Venier was attacked by a British submarine, HMS Porpoise, that was unaware its prey was carrying 2,000 prisoners in its hold.Pte Keith’s family were later told the Italians had declared their son missing after the vessel was sunk.The author’s painstaking research has also for the first time found the date of the founding of what was then known as L Detachment, SAS Brigade. He was also given an MBE after being stationed with the 22 SAS in Malaysia and is reported to have also worked in the Oman-Yemen conflict before retiring to Portugal.Captain Jake EasonsmithJohn Richard Easonsmith, of Bristol, England, reached Lieutenant Colonel rank in 1943, having been awarded the Military Cross and a DSO.After assuming command of the Long Range Desert Group, he was later killed on Leros, aged 34.Lieutenant William (Bill) FraserLieutenant Fraser later became Captain and led the SAS’s Operation Houndsworth on June 10th 1944.Winning the the Military Cross and bar, and the Croix de Guerre with Palm, Fraser retired from service after the Second World War.Captain David StirlingAfter founding the SAS, Stirling became a colonel, and later founded the Capricorn Africa Society – a society for promoting an Africa free from racial discrimination.Stirling was knighted in 1990 – having been awarded a DSO and OBE – and died later that year aged 74.Lieutenant Paddy MayneRobert Blair ‘Paddy’ Mayne, of County Down, Ireland, served until 1945, receiving a DSO with three bars and a Legion D’honneur and Croix de Guerre.After a short period in the Falkland Islands with the British Antarctic Survey, Mayne became a solicitor, and then Secretary to the Law Society of Northern Ireland, before dying in 1955 after a reported car crash aged 40. The author’s painstaking research has also for the first time found the date of the founding of the SASCredit:The family of the late Lt-Col ‘Jake’ Easonsmith, DSO, MC (LRDG) The research has also uncovered more detail of what happened to some of those lost on the raidCredit:The family of the late Lt-Col ‘Jake’ Easonsmith, DSO, MC (LRDG) On its first mission, the newly-formed unit had been due to parachute deep into enemy territory On its first mission, the newly-formed unit parachuted deep into enemy territory in LibyaCredit:The family of the late Lt-Col ‘Jake’ Easonsmith, DSO, MC A 1943 file marked ‘most secret’ concluded that after the first operation it was “found inadvisable to carry out any more parachute operations in Western Desert. Long range operations proved much more successful.”Difficulties of parachuting in the desert included “changeable weather, difficulties of accurate navigation owing to lack of landmarks, casualties on landing owing to rough country”.Capt Easonsmith took the picture as he commanded the LRDG patrol that drove behind enemy lines to pick up the survivors. Standing next to then Capt Stirling, who is seen wearing sunglasses, is another key SAS figure Blair “Paddy” Mayne, who took over as leader of the SAS later in the war when Stirling was captured in 1943. The research has also uncovered more detail of what happened to some of those lost on the raid “Not only are their stories engagingly human but they underline the commitment made by those who died in the course of their duty, many in horrific circumstance, and the courage they displayed in meeting their deaths.”Much of the information has come from next of kin contacted by the author.Alex van Straubenzee, whose uncle Maj Ian Fenwick of D Squadron, 1st SAS, was killed in action in August 1944 whilst behind the lines in France, said: “It’s an absolutely stunning piece of work. The author has done it so meticulously and it’s beautifully written.”Profits from The SAS and LRDG Roll of Honour 1941-47 will go to Combat Stress. In the photograph of the survivors of the first ever SAS operation are some of the regiment’s most famous figures. The pictures were published for the 75th anniversary of the SAS’s founding Mayne, a lieutenant at the time of the raid, had been an Irish rugby international before the war and went on to become one of the most decorated officers of the conflict, winning four Distinguished Service Orders, the Legion d’Honneur and the Croix de Guerre. It has generally been accepted that Stirling came up with the idea sometime in July 1941, though the actual founding date has remained unknown.But documents recovered by the author and service records show the first detachment was formed on August 28 – the day The Originals first assembled  at their makeshift camp at Kabrit in Egypt.The roll of honour has also confirmed the identities and details of six soldiers from the SAS and seven from the LRDG who were either unknown, or until now had only been suspected of being members.Poor paperwork, secrecy, spelling mistakes and wartime confusion meant that some casualties were only recorded according to their parent unit, with no mention of them being attached to the SAS.In some cases the research has put names to casualties described in operational reports, but whose identities were not known.As a result some new names have already been added to the SAS official memorials in Hereford and Stirling.The author said his research had also recognised 21 French and Greek nationals killed while officially attached to the British SAS.“This is the first time that illustrated biographical entries have been written for each wartime casualty of the SAS and LRDG, with new casualties having been identified,” the author told the Sunday Telegraph. The elite troops who became part of the regiment’s early historyCorporal Jeff du VivierJeffrey Du Vivier, from Troon, Scotland, won the Military Medal having been promoted to sergeant  in charge of training at the Special Raiding Squadron in Egypt.He was wounded in battle days before the end of the war and later worked as a porter at the Prestwick Airport Hotel, Greater Glasgow, before dying in 2010 aged 94.PCT Johnny CooperJohnny Cooper, of Oadby, Leicestershire, was later promoted to Lieutenant Colonel and awarded a DCM. The picture was taken by then Capt ‘Jake’ Easonsmith, who at the time was an officer in the LRDG, and shows the aftermath the SAS’s disastrous first raid, codenamed Operation Squatter.Only a few months earlier, a young Scots Guards officer called Lt David Stirling had proposed creating a force of raiders to operate deep behind enemy lines, attacking air fields, supply trains and ammunition dumps.On its first mission, the newly-formed unit parachuted deep into enemy territory to destroy aircraft at Axis airfields, in preparation for a major British offensive to relieve the siege of Tobruk.The raid on the night of November 16-17 had been meant to demonstrate the effectiveness of Stirling’s new force, but proved to be a costly failure. Exhausted and filthy, the soldiers of the newly-formed SAS stand side-by-side in the desert.Hours earlier, an abortive raid had seen more than half their comrades either killed or captured, but the men of the soon-to-be-famous force still manage to raise a grin.The newly-discovered photograph from 1941 is the only known picture of the elite unit’s first ever raid, carried out by founder members known as the Originals.This extraordinary historical document has been discovered as part of research which has also determined the founding date of the secretive unit as August 28, 1941 – 75 years ago today. Planes took off from Kabrit in Egypt, to deliver the parachuting raiding party to airfields at Tmimi and Gazala, West of Tobruk in Libya.The operational order noted: “It is most important that the enemy should be unaware of your having landed or of your presence.”But one plane was shot down with the loss of 13 parachutists and crew and the others jumped into heavy rain and a gale. Containers of equipment were blown away and parachutists were badly injured as they landed on rough ground in high winds. Men of the Long Range Desert Group returning from a 3-month trip behind enemy lines during war in North Africa Several of the survivors from Operation Squatter went on to be killed in missions later in the war.Capt Easonsmith himself was killed in 1943 in an ambush on the Greek island of Leros and the photo – showing in the foreground his silhouette holding the camera – remained with his family, who had no idea it showed the first SAS raid.The research has also uncovered more detail of what happened to some of those lost on the raid, such as Pte Douglas Keith.He is often recorded as dying from his wounds soon after the raid, but in fact the soldier had been made prisoner by the Italians and the following month was put on a transport ship from Benghazi across the Mediterranean, along with other PoWs. The author’s painstaking research has also for the first time found the date of the founding of the SAS Want the best of The Telegraph direct to your email and WhatsApp? Sign up to our free twice-daily  Front Page newsletter and new  audio briefings.last_img read more

Column Who really benefits from the new carrot and stick approach to

first_imgTHE MINISTER FOR Social Protection Joan Burton announced new opportunities and sanctions for the social welfare system; new carrots and new sticks. That the carrots aren’t very wholesome and that the sticks are quite ferocious hasn’t been much picked up in the media so far.First of all the bright new opportunities: JobsBridge, the government funded intern system has been extended from 9 to 18 months. Effectively it’s a longer bridge, which goes to show that the existing bridge didn’t have any jobs at the end of it – rather like the pot of gold at the end of the rainbow. In JobsBridge, an unemployed person works for a company who may or may not eventually have an opening for them, in exchange for a €50 top up on their dole. Effectively, they are often working for less than the minimum wage, in the frequently vain hope that there will be a real job for them in the future.The unemployed do not benefit from this systemWho benefits from this system? Clearly, it is employers who get labour for nothing. Furthermore, the implicit threat that real jobs could be replaced by interns is also significant. And though the state has to pay for all of this, the government benefits in that JobsBridge reduces the official numbers of long-term unemployed, even though they don’t actually find jobs.Over 80,000 people are currently part of publicly funded activation programmes, and therefore not counted on the live-register or in the overall unemployment rate. So Joan & Co look good.The existing sanction for non-compliance with the Active Labour Market Policies of the social welfare system is a reduction of payment from 188 to 144 per week. This is well below the poverty line. And remember that the unemployed already suffer disproportionately from food and fuel poverty and indebtedness. What is non-compliance? It includes not meeting with officers for assessment, failure to demonstrate job-seeking activities or refusal to take up training or education or even a JobsBridge place. Over 1,500 people have been sanctioned this year to date.What is “non-compliance”?The new sanction in the social welfare system is that non-compliance with the system can be punished by a withholding of payments for up to nine weeks. Nine weeks is 63 days, which is approximately how long each of the Hunger Strikers took to die in the maze prison. But of course, the unemployed who are cut adrift for nine weeks have recourse to soup-kitchens and charity and begging! So that’s ok, right?Of course, the unemployed are receiving benefits from the state, and therefore they should comply with the system. The system is supposed to be there to help them. However, with so many unemployed, and so few job opportunities, surely any help offered will be taken up by sufficient numbers, that sanctions should be unnecessary. Furthermore, the threat of sanctions increase the stress levels of all the unemployed; and the unemployed have twice the national incidence of depression and three times their incidence of suicide. There is no need to kick people when they are down.Is it ok to cut people off?But the real moral question here is how we treat those who genuinely do not comply. Beyond those who do not wish to take an absurd JobsBridge internship or be forced to change profession in order to fit in with the current demands of the labour market, it is probable that there are some people who are not genuinely seeking work. They are using tax-payers money and giving nothing back. Is it ok to cut these people off without any means of subsistence?I don’t think so. At present there are over four thousand people convicted of criminal offences in Irish prisons. None of them are allowed to go hungry. Clearly, inmates have not complied, often in very serious ways, with the laws of the land. The state feeds and houses them at significantly more cost than a basic social welfare payment. In fact, since the state is the primary guardian of the human rights of its citizens, making even non-compliers effectively destitute is surely a legal as well as a moral failure.These new carrots and sticks will do nothing for the real economy; their real effect is to make the lives of all of the unemployed more unpleasant. It is not ‘Social Protection’ at all.Tom Boland lectures in Sociology at Waterford Institute of Technology and is co-ordinator of the Waterford Unemployment Experiences Research Collaborative. To read more articles by Tom for click here.last_img read more

Notion Ink Adam tablet previewed

first_imgOne of the most talked about tablets leading up to CES 2011 was the Notion Ink Adam and its Pixel Qi display. Engadgeteer Joanna Stern went hands-on with the tablet and posted a 5 minute preview of it in action.For the most part it seems like an above-average tablet with a slick UI, though one without a marketplace (yet). Things get more impressive at the 4 minutes mark, when they take the tablet outside into direct sunlight. It works great in sunlight (unlike the iPad) thanks to the use of the Pixel Qi display.The article has a full run-down on the tablet, covering apps, the 10-inch display, the hardware, and all that good stuff. Here is the big take-away though: “at the moment the Adam is one of the most impressive tablets we’ve seen.”The big question now is when it will be released.Read more at Engadget.last_img read more

Une feuille pour remplacer le nucléaire

first_imgUne feuille pour remplacer le nucléaire ?Le Massachusetts Institute of Technology (MIT) a mis au point une technologie capable de produire les éléments nécessaires à la production d’électricité. Pas une découverte nous direz-vous…Sauf que là,  la génératrice est une simple feuille.Voilà peut-être l’alternative au nucléaire dont tout le monde rêve. Le Massachusetts Institute of Technology (MIT) a ainsi dévoilé le fruit de ses dernières recherches dans le domaine de la production électrique. Il s’agit d’une feuille composée d’une cellule solaire en silicium avec différents matériaux catalytiques attachés sur les deux côtés. Il suffit ensuite de la plonger dans de l’eau et de l’exposer à la lumière solaire pour qu’elle produise rapidement des bulles d’oxygène sur un côté et d’hydrogène sur l’autre. En plaçant ces deux types de bulles dans une pile à combustible, elles se combinent de nouveau en eau tout en produisant de l’électricité dans ce processus, explique le Professeur Daniel Nocera. Un procédé intelligent puisqu’il fait appel à des matériaux bon marché et abondants, le silice, le cobalt ou encore le nickel. La feuille est ainsi pourvue d’une fine couche de semi-conducteurs en silice, un matériau largement utilisé dans la fabrication des cellules solaires et qui a la capacité de transformer l’énergie solaire en un flux continu d’électricité à l’intérieur de la feuille. Le cobalt va ensuite jouer le rôle de catalyseur libèrant l’oxygène d’une part, tandis que le nickel, le molybdène et le zinc de l’autre face libèrera l’hydrogène. Le 4 octobre 2011 à 09:20 • Maxime Lambertlast_img read more

Vitesse de sédimentation définition comment se passe lexamen quels sont les risques

first_imgVitesse de sédimentation : définition, comment se passe l’examen, quels sont les risques pour la santé ?Également appelée réaction de Biernacki, la vitesse de sédimentation est un examen biologique fréquemment prescrit par les médecins afin de détecter un éventuel mécanisme inflammatoire.Qu’est-ce que la vitesse de sédimentation ?Il s’agit d’un test médical d’orientation qui permet au médecin d’affiner son diagnostic. En effet, la vitesse de sédimentation correspond à la durée qu’il faudra aux globules rouges et aux autres éléments sanguins en suspension dans le plasma pour se précipiter au fond d’un tube à sédimentation de Westergreen gradué de 0 à 200 mm. Le taux de sédimentation est ainsi exprimé en mm/h. Ce dernier varie en fonction de la concentration des protéines contenue dans le sang, susceptible de fluctuer en présence d’un processus inflammatoire. Il faut savoir qu’une inflammation entraîne une augmentation du taux de protéines inflammatoires et d’immunoglobulines. De fait, la vitesse de sédimentation s’impose comme un marqueur non spécifique de l’inflammation.Vitesse de sédimentation : comment se déroule l’examen ?À l’instar de nombreuses analyses sanguines, la vitesse de sédimentation nécessite la réalisation d’une prise de sang dans une veine du pli du coude. Il est préférable d’effectuer cet examen en étant à jeun et, si possible, en dehors de la période menstruelle. Le prélèvement ainsi effectué par un professionnel est conservé dans un tube renfermant une substance anticoagulante (1 volume de citrate de sodium pour 4 volumes de sang). Le tube est positionné verticalement. La vitesse de sédimentation est alors évaluée en hauteur de cellules sédimentées (mm) mesurée au bout d’1 heure puis de 2 heures, même s’il existe certaines techniques plus rapides. Bien qu’ils soient rares, les risques induits lors d’un prélèvement sanguin existent, mais restent minimes : hémorragie, syncope, hématome, infection… Les résultats sont généralement obtenus par le patient 24h après la prise de sang.Vitesse de sédimentation : quels sont les risques pour la santé ? À lire aussiCancers digestifs : les dépister grâce à un test sanguinLors de la 1re heure, les valeurs normales de la vitesse de sédimentation doivent être comprises entre 4 mm et 8 mm chez la femme et entre 3 mm et 6 mm chez l’homme. Elles doivent être inférieures à 20 mm à la 2e heure. Si les résultats de l’examen sont anormaux, cela ne signifie pas pour autant que le patient souffre d’une pathologie. Pour arriver à un diagnostic précis, le médecin doit alors envisager d’autres examens plus spécifiques. En effet, les causes d’une vitesse de sédimentation élevée sont nombreuses : anémie, grossesse, insuffisance rénale, hypercholestérolémie (excès de cholestérol), maladie auto-immune… Un taux anormalement bas, quant à lui, peut indiquer la présence, entre autres, d’une anémie falciforme (drépanocytose), d’une insuffisance cardiaque, d’une cryoglobulinémie, d’une hémoglobinopathie ou encore d’une hyperviscosité.Le 29 mars 2017 à 12:01 • Maxime Lambertlast_img read more

Manchester City unexpectedly falls to Lyon

first_imgManchester City, one of the Champions League favourites, has fallen short of expectation in their first outing this season.The concern that they may not be on the same Champions League form as in the previous season has been mounted by their defeat to Lyon, claims Mirror.The result which City got out of their opening game in the Champions League was obviously not what Pep Guardiola had expected from them. The shock of the defeat was obvious across the lines of his face as he watched the game from where he was sitting away, still serving his ban from last season.Premier LeaguePremier League Betting: Match-day 5 Stuart Heath – September 14, 2019 Going into the Premier League’s match-day five with a gap already beginning to form at the top of the league. We will take a…It was the fourth straight time that Lyon is beating City in the Champions League and it was a total fall for City. Even the energy in their performance was not such that could instil fear on any opponent.Although City’s form cannot yet be called questionable, with four wins and a draw in the Premier League coming before a loss in the Champions League. However, it is possible that Guardiola would see this as a huge slack.last_img read more

No laws requiring public to be informed when sex offenders are released

first_imgFacebook Twitter Google+LinkedInPinterestWhatsAppProvidenciales, TCI, September 9, 2016 – There are no laws in the Turks and Caicos which require the prison or police to inform the public that a violent sex offender has completed prison time.  The Governor’s Office is the only entity responding so far to our queries on Robert Jackson, aka Black.Jackson had been incarcerated for a string of violent home invasions, one involving a pregnant woman who was sexually assaulted; that case was from 2008.  The Governor’s Office said and I quote:“I can understand the concerns that have been expressed to you. However, Mr Jackson served all of the period that he was committed to prison to serve and was released accordingly. There is no requirement within Prisons Ordinance for any victim or community notification when anyone is released from prison without this being for the purposes of parole. Although it is possible for prisoners to seek voluntary supervision upon release, there is no statutory supervision requirements contained within the Prisons Ordinance.” End quote.The Governor adds that the Police are aware of Mr. Jackson’s release from Her Majesty’s Prison on September 2nd, 2016. Facebook Twitter Google+LinkedInPinterestWhatsApp Related Items:no laws requiring public to be informed when sex offenders are released, police aware of mr. jackson’s release, robert jackson released from prison, sex offender back on streets of TCIlast_img read more

Washington ethics panel tosses free meal complaint

first_imgOLYMPIA — A legislative ethics panel this week dismissed a complaint about some Washington state lawmakers accepting free meals from lobbyists, but it encouraged the Legislature to clarify how frequently such meals should be permitted.The Legislative Ethics Board’s Wednesday decision, which was released publicly Friday, said that if the Legislature doesn’t address the issue in the 60-day session beginning in January, the panel will work to establish rules on an enforceable standard.The investigation was prompted by a complaint filed after The Associated Press and a consortium of public radio stations found that the state’s 50 most active lobbyists pampered legislators with $65,000 in free meals in the first four months of this year. Washington ethics law prohibits public officials from accepting free meals on more than “infrequent occasions,” but the panel noted that the rule is not clearly defined in the Ethics in Public Service Act.“The absence of any standard or guidance has created a situation where legislators do not know at what point their actions may constitute a violation of the Act,” the ruling reads. “Because of the uncertainty surrounding the statute the Board is divided on the question of whether there is reasonable cause to believe the Act has been violated in this case.”The ethics complaint focused on the top five recipients identified by reporters: Republican Sens. Doug Ericksen of Ferndale, Steve Litzow of Mercer Island, Joe Fain of Auburn, Mike Hewitt of Walla Walla and Mark Schoesler of Ritzville.last_img read more

21 will exercise GDPR rights to have data removed from past and

first_imgMore than one-fifth (21%) of respondents plan to exercise their rights under the General Data Protection Regulation (GDPR) to have their data removed from current and previous employers, according to research by analytics organisation SAS.Its survey of 2,000 UK consumers also found that 22% of respondents will request to access the personal data that their current employer and past employers hold about them.The research also found:17% of respondents will ask their employers to stop using their personal data for marketing purposes.21% of respondents will seek human intervention over automated decisions for performance assessments at work.19% of female respondents will exercise their right to erase their personal data from employers, compared to 23% of male respondents.48% of respondents plan to activate their rights under GDPR, and 15% intend to activate their rights in the same month that GDPR comes into force (25 May 2018).Charles Senabulya, vice president and country manager at SAS UK and Ireland, said: “Finding customer zero is a huge challenge for some organisations. Personal data is often stored in thousands of databases and organisations will need to find, evaluate and categorise every piece of data relating to each customer to ensure compliance.“Overcoming this challenge presents an opportunity for organisations as they form a new type of relationship with their customers that is bound by integrity, understanding and respect for their individual choices. We are entering a new data era that requires a firm grip of customer data. One that rewards consumers as well as protects their right to privacy.”Read more about the implications of GDPR for employers in Ruth Buchanan: The new General Data Protection Regulation is just around the corner.last_img read more

Implementing a Mobile Strategy as an Independent Publisher

first_imgIn addition, Flash-based advertising will not display correctly on iPhones and iPads and certain javascript functionality can be compromised. Video is another important consideration, as the video itself must be coded to be mobile friendly or potentially your video will not playback properly on certain mobile devices. Many third party providers that deliver video will have smart delivery to ensure that if the agent is mobile, both size and codec, are delivered versus video delivered to a PC.On some site platforms such as WordPress and others, there are plug-ins that can be installed and configured to add custom CSS styling to site content and strip out most everything except for main post entries and simplify the navigation menus for easier mobile browsing. The plug-ins detect the agent and automatically display the mobile style and framework. This makes mobilizing a site a very simple process. For other platforms, more custom CSS and coding strategies may be needed to do a clean mobile conversion. The Design World site was built custom on .NET / C# and in our case presented substantially more work to do a clean mobile version in parallel to the main site development. In this case, we built a stand-alone site ( for mobile content. This also provided more control in cross linking other site content and custom advertising options. On special campaigns or product launches, a mobile microsite is very effective since it is built basically from the ground up to be optimized for mobile devices. The challenge with mobile re-direction is that with devices such as the iPad, directing to a mobile version of your site might be sub optimal, as the real estate and function of a tablet is a much different experience. Fortunately the agent varies slightly on tablet devices and code on a site can direct a tablet browser back to the main site, or even another custom coded site specifically for tablets.App Versus Site?There are multiple versions of your Web site to accommodate mobile users and smartphone applications bring up even more considerations. With Design World Magazine and network of over 25 Web sites, we decided an app would be an excellent way to aggregate select content from across many sources. In early 2010 we surveyed our audience and BlackBerry devices came back at the top of use list, so the decision was made to start there first. We then contracted with a developer that ended in a compete failure based in large part on the complexity in app creation for RIM devices. The proliferation of different RIM devices and different programming requirements for the devices convoluted our efforts. In addition, the developer indicated they could program for Apple iOS and the Android platform, so there was some level of distraction.From our first setback, we took a quick look at the market and decided to hit the iPad / iPhone first. When we started we did not anticipate how high the iPad consumption would be, but then no one did. We also decided to do a + App, meaning it would run native for both iPad and iPhone. In the end, our early mistake proved to be a good decision and enabled us to make the right bet with the iPad app development project. With the Design World + App we decided on a third party (Mutual Mobile) team as we lacked the appropriate coding experience internally and Apple has a fair amount of requirements on optimizing applications for audio and video streaming over cellular networks, functionality. Internally we have enough software development expertise to manage the process, but this too can be challenging in writing the specification and keeping features locked in a schedule. Otherwise, feature creep will kill deadlines and budget.While managing our iPad app, we also decided to build our own app for our community site, The platform for this site uses a public API (application programming interface), so data can be passed to and from the site via the API. In conjunction with another SaaS site, we were able to spin up a lightweight App for the iPhone using the EngineeringExchange API along with feeds to form the site around blog posts, forums and video. We were able to give members the ability to log into their accounts, update their status and blog post from their iPhones. It took three submissions to the App store to get approved, thereby validating our decision to use an experienced third party on the iPad App. However, we were able to mitigate a rather large expense while continually build a better user experience and capture some intellectual capital. To contrast, the Engineering Exchange App took a total of two months, a fair amount of fixed overhead and a minimum monthly fee to launch and maintain. This also based on having the API and many RSS feeds ready to roll into the app to use as the conduit for data transfer. The Design World + App took over seven months to develop, lots of project management time and so far over $25,000. What’s Next For now, we are on the sidelines with Microsoft. Android is an important player, but code developed for the iPad is not very portable to Android ‘Honeycomb’ apps. The notion of HTML5 may alleviate some issues, but its hard to see convergence anytime soon. HTML5 promises the idea of “develop once, distribute to many” and HTML5 has very media rich features to produce app-like native performance from a Web-based protocol. Apps, however, are firmly entrenched and offer performance advantages, offline advantages and act as a kind of ‘pay-wall’ (for paid apps) that a lot of publishers are seeking.Including a clean, mobile-friendly version of your Web site and smart re-direction based on agent is the overall foundation of any mobile strategy. Looking at applications across various platforms if they fit your business model is essential as the technology is moving fast on this front. Finally, if print is still part of your mix, utilizing QR codes can bridge print to online in an efficient way. Marshall Matheson is SVP of online media at WTWH Media. Mobile advertising in the United States by several estimates will reach a total of $5 billion in 2015. While a large share goes to b-to-c publishers, the trend represents opportunity for b-to-b publishers as well. With all the potential (and potential for confusion) here are a few tips on implementing a mobile strategy, especially if your just now evaluating your mobile plan. Mobilizing your Web SitesOne of the first areas to address with your mobile strategy is with your current Web site. Depending on your site platform(s) and content, this process is relatively simple. As a visitor arrives on your site, you can install code that reads the agent of the visitor. The agent is basically which Web browser, spider or otherwise is hitting the site. If the agent is a Web browser associated with a mobile device, a re-direct to mobile content can be implemented. While the Web browsers on smart phones continue to get better, the real estate presents the limiting factor. So while on the iPhone a standard Web site may look good, browsing, clicking and zooming can present challenges. last_img read more

WHS GIRLS TENNIS Wildcats Near Perfect Against Stoneham

first_imgWILMINGTON, MA — The WHS Girls Varsity Tennis Team defeated Stoneham, 5-0, on Monday, April 29, 2019 at Wilmington High School.Wilmington senior Emily Hill defeated Sophia Perillo, 6-0, 6-0.Wilmington junior Carolyn Roney defeat Stephanie Lee, 6-0, 6-1.Wilmington senior Lia Kourkoutas defeated Bridget Trecy, 6-0, 6-0.Wilmington senior Jessica D’Arco and sophomore Lauren D’Arco defeated Sydney Shephard and Tara Hacke, 6-0, 6-1.Wilmington sophomore Vrdhi Shah and sophomore Johanna Robinson defeated Maryjane McAllister and Brynn Hespeler, 6-4, 7-6 (7-4).Like Wilmington Apple on Facebook. Follow Wilmington Apple on Twitter. Follow Wilmington Apple on Instagram. Subscribe to Wilmington Apple’s daily email newsletter HERE. Got a comment, question, photo, press release, or news tip? Email this:TwitterFacebookLike this:Like Loading… RelatedWHS GIRLS TENNIS: Wildcats Defeat Stoneham & Wakefield On Back-To-Back DaysIn “Sports”WHS GIRLS TENNIS: Wilmington Sweeps MelroseIn “Sports”WHS GIRLS TENNIS: Wildcats Win Third Matchup In Three DaysIn “Sports”last_img read more

Porsches Taycan covered 21281 miles in 24 hours at Nardo

first_img Porsche The reason why those figures, especially the average speed and temperature numbers, matter is that electric vehicles have historically had the problem of losing power and efficiency as their battery packs start to heat up with use. That the Taycan was able to maintain such high average speeds over such a long distance at such high ambient temperatures tells us a lot about the level of engineering that Porsche has put into the Taycan.This is part of why we’re so excited for the first all-electric Porsche, even more so than with other carmakers, because there are very few other organizations that have Porsche’s resources, engineering ability and bull-headed commitment to avoiding compromise.Porsche’s Taycan is slated to make its global debut on Sept. 4.  Share your voice 42 Photos Enlarge ImagePorsche’s electric Taycan managed to travel over 2,000 miles in 24 hours at the Nardo test track in Italy. Porsche Everything that Porsche builds has some kind of sporting pretenses as well as a serious commitment to build quality. To see if its first fully-battery electric vehicle, the Taycan, can live up to Porsche buyers’ expectations, the company decided to take it to the Nardo test track in Italy and run it until it broke.Except it didn’t break. Porsche announced on Monday that the Taycan ran for a nearly continuous 2,128.1 miles in 24 hours with breaks only for fast charging and driver changes and was able to maintain an average speed between 121 and 133 mph. And it was able to do that with track temperatures well above 120 degrees and ambient temperatures of up to 107 degrees. Porsche Taycan on ice in Sweden 2019 Chevy Camaro ZL1 Convertible review: A topless thrill ride 2020 BMW 745e xDrive review: A plush plug-in with power and presence 2 More From Roadshow Tags 2020 BMW M760i review: For both the driver and the driven Porsche Electric Cars Performance Cars Commentslast_img read more

Wake cloaking simulated in lab objects move through water without leaving a

first_img Explore further More information: Fluid flow control with transformation media, Yaroslav A. Urzhumov, David R. Smith, arXiv:1106.2282v1 [physics.flu-dyn] introduce a new concept for the manipulation of fluid flow around three-dimensional bodies. Inspired by transformation optics, the concept is based on a mathematical idea of coordinate transformations, and physically implemented with anisotropic porous media permeable to the flow of fluids. In two different situations – for an impermeable object situated either in a free-flowing fluid or in a fluid-filled porous medium – we show that the object can be coated with a properly chosen inhomogeneous, anisotropic permeable medium, such as to preserve the streamlines of flow and the pressure distribution that would have existed in the absence of the object. The proposed fluid flow cloak completely eliminates any disturbance of the flow by the object, including the downstream wake. Consequently, the structure helps prevent the onset of turbulence by keeping the flow laminar even above the typical critical Reynolds number for the object of the same shape and size. The cloak also cancels the viscous drag force. This concept paves the way to energy-efficient, wake-free propulsion systems, which control and prevent wake formation through a smart spatial distribution of propulsion forces.via PhysicsWorld Citation: Wake cloaking simulated in lab – objects move through water without leaving a trace (2011, July 25) retrieved 18 August 2019 from Velocity pro le and streamlines of flow around and through the porous spherical shell surrounded by a viscous fluid. (See ref. below for details). Image credit: arXiv:1106.2282v1 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. © 2010 ( — Metamaterials researchers Yaroslav Urzhumov and David Smith, working at Duke University have built a simulation of an object that can move through water without leaving a trace and claim it’s a concept that could be built and used in the real world provided more research is done. In their paper, published on arXiv, the two describe how they programmed the use of metamaterials applied to an object, along with tiny water pumps, into a model to simulate an actual object moving through water without dragging some of the water with it that would normally cause turbulence. The two show, by use of a sphere, how an object could be covered with several layers of a mesh of wire or blades, from large ones nearest the object, too much smaller ones farthest away. The idea is to make up for the difference in movement between the object, and the stillness of the water it’s moving through, all while parting the water in ways gentle enough to cause cloaking and then allowing it to reseal after the object passes. The metamaterials provide the cloaking, while pumps are used to move the water at differing speeds in the different layers to keep the water from being dragged along as the object moves through it.The paper comes after what seems like one announcement after another in new cloaking technologies; first an invisibility cloak, then ones that cloaked sound, electric and ocean waves and even a time cloaking device; all are based on new so-called metamateriasl (materials with properties not found in nature).The advantages of the use of such technology are obvious; without drag, boats or submarines could go farther and faster while using less fuel, and if they ran nearly silent in doing so, it would herald the age of new stealth boats and ships that would be difficult if not impossible to detect by enemies looking for them. In the model created, the object was bullet sized and moves just a few millimeters per second, but the authors suggest that if an actual boat was to be made, it might make more sense to try to reduce just the drag, rather than try to hide the wake as well, as that would likely be much easier to actually make. The authors do not plan to try to build a real world boat, due they say, to lab constraints, but suggest a collaboration with another facility might be feasible. Next generation cloaking device demonstratedlast_img read more