Trina RoacheAPTN National News APTN is a media partner in the survey that gives us a glimpse at what non-Indigenous Canadians think, and what they know, about their Indigenous neighbors.The survey covered a wide array of topics, from racism, to residential schools, to reconciliation.It found there is a lack of awareness and understanding of Indigenous people among the Canadian public. At the same time, there is a strong desire to learn more. email@example.com
Agartala: The Election Commission on Thursday removed the returning officer of the Tripura West seat, where polling was held on the first phase on the Lok Sabha elections on April 11, an official said. “The Election Commission removed the returning officer of the Tripura West seat Sandeep Mahatme. Tripura East’s returning officer, Vikas Singh, has been appointed in his place,” an Election Commission official, who did not want to be identified, told IANS. Also Read – India gets first tranche of Swiss account details under automatic exchange framework Alleging large-scale rigging, booth capturing, intimidation and attacks on voters and polling agents by the ruling Bharatiya Janata Party (BJP) members and their goons, the opposition Communist Party of India-Marxist (CPI-M) and the Congress had been demanding re-polling in the constituency. They had also been demanding Mahatme’s removal. The EC order issued by Secretary Arvind Anand, and available with IANS, relieved Mahatme, the District Magistrate of West Tripura, from election-related duties. It also asked Vikas Singh, the District Magistrate of Dhalai, to join his new posting by Thursday. Also Read – Trio win Nobel Medicine Prize for work on cells, oxygen According to the official, Tripura’s Chief Electoral Officer Sriram Taranikanti has been asked to send a panel of names by Thursday to be appointed the new District Magistrate of Dhalai. While polling was held in Tripura West on April 11, voting in the Tripura East seat, slated for the second phase of April 18, was deferred to the third (April 23) by the poll panel, citing the “non-conducive security situation”.
Rabat – The US Department of State has announced the opening of the registration period for the diversity visa lottery for US permanent residence in 2020. The US grants 50,000 immigrant visas through the diversity visa lottery each year to foreign citizens of eligible countries, including Morocco, who have applied and qualified. Eligible countries are those that have sent fewer than 50,000 immigrants to the US in the past five years.The registration period began Wednesday, October 3, and will continue until 5 p.m. (Moroccan time) on November 6, 2018. All registrations should be submitted through dvlottery.state.gov. The US Department of State stressed that the application process is free. The department advised visa applicants to remain vigilant for fraudulent emails, websites, and letters claiming to be part of the diversity visa program.Read Also: General Information about Diversity Visa ProgramTo apply for the diversity visa, candidates must have obtained a Baccalaureate or diploma. Married couples can submit a joint application on the condition that both have at least a Baccalaureate degree.Applicants can check their if they have been selected through the Department of State’s secure online site on May 7, 2019. The department randomly selects applicants to proceed to the next stage.Although more than 100,000 Moroccans apply yearly for the visa, only 900-1,000 of those selected receive the permanent residence visas.Selected entrants are encouraged to complete the next stage of the online application immediately to schedule an interview appointment. Selected Moroccans would interview at the US Consulate in Casablanca. Before being interviewed, each applicant must pay the diversity visa lottery fee of approximately $220.Read Also: Donald Trump Vows to End Green Card Lottery, Family Sponsored Visas
24 November 2008Two United Nations disarmament events kick off today in the Republic of Korea (ROK) and Brazil as part of the world body’s efforts to promote the non-proliferation of weapons across the globe. The seventh annual Joint Conference on Disarmament and Non-proliferation issues, organized by the UN Office for Disarmament Affairs and the ROK, is taking place on Jeju Island from today through Wednesday.This year’s conference will focus on such concerns as revitalizing the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) process, the nuclear renaissance, a multilateral assurance mechanism for nuclear fuel supply, and non-proliferation challenges in North-East Asia.Some 40 representatives of governments, international organizations, academic and research institutions, as well as civil society are expected to participate.The annual event, which has been hosted by ROK since 2002, is a forum for dialogue and the exchange of views on pressing security and disarmament-related issues facing the international community, addressing particular disarmament and non-proliferation concerns in the Asia-Pacific region.Meanwhile, in the Brazilian city of São Paulo, the Office for Disarmament Affairs has organized a week-long workshop on implementing Security Council resolution 1540. That resolution, adopted by the Council in 2004, focuses on the non-proliferation of weapons of mass destruction.The workshop aims to enhance national capacities for the management of export control processes at a practical level as well as to improve information and experience-sharing between national expert control and enforcement authorities.
TORONTO — Home Capital Group Inc. (TSX:HCG) says it has reached an agreement to sell its payment processing and prepaid card business as it looks to further streamline operations.The Toronto-based alternative mortgage lender says the sale of the business will save about $20 million in annual salary and other operating costs, while giving up the $18 million in fees and other income it brought in.Home Capital had already signalled its intention to sell the division as a non-core operation, and says the impact from the sale on its full-year net income is insignificant.Earlier in October, the company said it had cut 65 jobs as part of a program to eliminate $15 million in annual costs that was largely complete.The company has been looking to restore soundness after allegations by regulators that it misled investors prompted a run on deposits by customers in April.Home Capital says it is still facing elevated expenses because of the scrutiny, and the need to borrow funds at higher rates to make it through the liquidity crunch.
“The highest levels of political leadership in the country must send a clear message that those responsible for this murder will be held to account,” said Acting High Commissioner for Human Rights Bertrand Ramcharan. “The problem of impunity remains a central obstacle to the process of building democratic institutions and advancing the enjoyment of human rights under the rule of law in Cambodia.”Chea Vichea, who presided over the Free Trade Union of Workers of the Kingdom of Cambodia, was shot dead last Thursday, the latest in a series of assassinations and attempted murders of prominent figures in Cambodia over the past year. Mr. Vichea reportedly had received a number of threats to his life in the months prior to his murder.Pointing also to reports of the murders of a number of local opposition activists in the last six months, Mr. Ramcharan said, “All States have an obligation to protect their citizens from arbitrary deprivation of life, and must be active in providing this protection where an individual has faced serious threats.”He said a thorough and impartial investigation must be publicly established and undertaken, identifying both those who were responsible for the killing of Mr. Vichea, as well as those who ordered it.”It is hoped that the prosecutions will take place in a fully transparent manner, in accordance with the due process guarantees contained in the Cambodian Constitution and the international human rights conventions to which Cambodia is a party,” Mr. Ramcharan said.
…was reportedly involved in a fightDead: Kevin KetwarooThe family of 28-year-old, Kevin Ketwaroo called “Wild Buck” whose body was discovered floating in a trench at Craig Side Line dam, East Bank Demerara (EBD) on Monday last are now searching for answers after a postmortem examination conducted on the mason determined that he died as a result of blunt trauma to the head along with compression injuries to the neck.Moreover, Ketwaroo’s family believes that he was murdered and thrown into the trench in which he was found, since according to them he was involved in a fight on Saturday last at the Third Street, Grove, Ball Field.However the persons that he reportedly fought with are yet to be identified by Police.INews had previously reported that the Friendship resident was pulled out of the trench at about 14:45h on the day in question in a partially decomposed state.Police have disclosed that according to the man’s younger sister who identified his body, she last saw him on August 1 at about 07:00h when he visited her home to borrow money.Ketwaroo’s wife has also allegedly told investigators that approximately one month ago, the deceased had physically abused her and as such, she had made a report at the Grove Police Station. However, when the ranks turned up to arrest the man, he had allegedly fled.To this end, the mason’s wife said that since then, she has been residing alone in Sophia, Georgetown.Persons in the Kaneville, East Bank Demerara area who have since been questioned by the Police have confirmed that Ketwaroo was indeed involved in a fight.His family is now pleading for anyone with information to urgently make contact with the Grove Police Station.Investigations are continuing. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)RelatedPartially decomposed body found in Craig trench identifiedAugust 7, 2018In “Crime”Update: Body fished out of Herstelling trench identifiedJuly 17, 2018In “Crime”Missing ex-officer who was fished out of canal died from blunt trauma- autopsyJanuary 14, 2019In “Crime”
Initiatives by Australia’s State Government of Victoria to develop its untapped gold potential are bearing fruit with proponents saying at least three of newly discovered orefields are expected to contain more than 1 Moz of gold. Addressing the second day in Melbourne of the Paydirt 2008 Victoria Resources Conference, Geoscience Victoria Director, Ms Kathy Hill, said the State’s A$9 million gold undercover assessment had now completed two of its three planned stages.“The results in the Bendigo zone for example, have provided the geoscience data pointing to a potential 30 Moz of gold in mesozonal orogenic deposits only, awaiting exploration and potential development,” Ms Hill said. “Our analysis has also delivered a confidence level of around 80% that the actual range could be as high as 50 Moz. Within this range, there are possibly 15 to 32 significant undiscovered ore fields each pointing to hosting around 250,000 oz of gold.“The work north of Bendigo has unlocked several basement highs, with the regional gravity data now intensified from 1500 m spacing to as close as 500 m spacing. Some initial drilling has already been initiated over these opportunities. Leviathan Resources announced last November, for example, gold intercepts in bedrock at 70 m depth, including intercepts of 1 m grading 160 g/t Au – so the value of the Geoscience Victoria work is setting the groundwork for future discoveries.”A new gold assessment over the Stawell region will be released at the Conference’s Technical Forum on August 27.Latest technologies are being used in Victoria’s work, including one that mimics bats’ night navigation technique, which has been used for the first time to image structures beneath the earth’s surface that played an important role in forming Victoria’s gold deposits. Speaking as he opened the conference, Energy and Resources Minister Peter Batchelor said the innovative approach being presented at the conference would produce deep seismic data that could help explorers better pinpoint new gold deposits.“Previously geologists have been able to map the land surface in Victoria and estimate what might be below, but this is the first time they have been able to directly image how faults behave deep in the earth’s crust,” Batchelor said. “The deep seismic study focused on an area nearly 400 km long, spanning western and central Victoria from Stawell to Cobram and has for the first time imaged the earth’s crust at depths of up to 40 km below the surface. Analysis of this seismic data has provided crucial evidence which supports the long held theory that Victoria’s gold came from faults deep below the surface.”The presentation at the conference, Tectonic Evolution of Western and Central Victoria: New Interpretations from the Deep Seismic Transect, showcases the results of one of a number of new geological studies that are either completed or currently being undertaken by GeoScience Victoria.Several projects are being released at the three-day conference to help industry better pinpoint resources in Victoria with the potential to be explored and exploited. GeoScience Victoria Senior Geologist Ross Cayley said the seismic survey used controlled energy waves to identify objects, a technology based on the same technique used by bats to navigate in darkness.“Bats direct controlled bursts of energy waves at objects and by listening to reflections of this energy bats can interpret their shape, distance and geometry,” Cayley said. “Using an advanced version of this technique used by bats, geologists can image objects deep beneath the surface of the earth, even when they may lie buried as is the case for this survey, at depths of up to 40 km. In the past these types of seismic surveys have mostly been used for offshore gas and oil exploration.“While there have been two small surveys carried out near Stawell previously, this is the first time geologists have been able to carry out a large-scale onshore seismic survey designed specifically to look into Victoria’s oldest rocks .” Cayley said to carry out the survey three specially constructed 15 t trucks were used. Each truck as a number of steel plates attached which send vibrations at various frequencies into the ground. Geophones, are then placed in the ground around the area to listen to reflections of the energy pulses.“This survey has proven that geologists have been on the right track about how gold deposits were formed in Victoria and it will now help us model the ancient fluid flow from the faults, which should help us better understand known minerals deposits, and perhaps more accurately locate new ones.”“It’s all about reducing exploration risk for mineral explorers,” Batchelor said. “The more information we make available to explorers, then potentially the lower the financial risks, which makes Victoria a better prospect for resources investment. The data collected will also feed into the 3D geological model of Victoria currently being developed by GeoScience Victoria. There are also plans to use the model to look at the last 500 million years of Victoria’s history and create detailed ‘snapshots’ of critical moments of mountain building and movement of mineral rich fluids from great depths within the earth beneath Victorians’ feet.”
Source: National GalleryTHE MONET PAINTING damaged in an incident in the National Gallery in Dublin two years ago is due to go back on display this morning following extensive repair work.A man is currently before the courts in connection with the incident, which happened in June 2012.The painting — ‘Argenteuil Basin with a Single Sailboat’ — was seriously damaged, and experts have been painstakingly working to restore the it for the past 18 months.Read: National Gallery ‘disappointed’ jury failed to reach a verdict in damaged Monet painting case
With the retirement of the Space Shuttle imminent, a lot of attention has been given to the spacecraft and the work that goes into preparing it for travel. What has seemed to go unnoticed are two lesser components which are necessary for any successful shuttle mission. The solid rocket boosters (SRBs), one attached to each side of the main rocket, give the spacecraft that extra push it needs to achieve orbit. Once their work is done, the SRBs gently fall away and out of sight of the Space Shuttle crew. The next time most of us see them again is when they are attached to another Space Shuttle ready for launch. What is missed is the effort that goes into recovering the SRBs from the Atlantic Ocean so as to be used again.For the first time, NASA has posted on YouTube an up-close, high-definition video of that recovery as carried out by crews aboard NASA’s two recovery vessels called the Liberty Star and Freedom Star. The video was shot during the launch of Discovery‘s final flight, STS-133, on February 24th. Pay particular attention to how the SRBs float straight up showing only a small part of their massive height with the rest under water much like an iceberg.Viewers will find particular interest in how divers swim to the bottom of the floating rockets to attach equipment to enable them to float horizontally before being towed into shore. Upon being returned to Hangar AF at Cape Canaveral, the rockets are processed and sent to Utah where they are refurbished and stored for possible future use.Be sure to look for the part of the video when the camera captures the sound of the boosters hitting the ocean. Upon hearing the sound, and seeing how massive these rockets are, most people will appreciate why you don’t want to be near these things when they hit.via YouTubeBrian’s OpinionWhile the high-definition video taking by NASA is stunning it is also bittersweet. The video is truly a testament to the hard working people behind the scenes that have supported the Space Shuttle over its many years of service. It is some of these same people who will be laid off when the Space Shuttle officially retires with the launch of Atlantis in June 2011. In July of last year, NASA got a head start on layoffs when it handed 1,300 pink slips to workers in lieu of the Space Shuttle program’s retirement this year.While I applaud the notion that America’s future in space travel should reside in commercial enterprise, I’m not a big fan of the current approach to do so. To me it’s no different than throwing your kid in the deep end of the pool before they have really had any swimming lessons. Since U.S. companies are not yet ready to take on some of the same responsibilities that were handled by the Space Shuttle program, the U.S. must pay Russia like a taxi driver for rides to the International Space Station. So, not only is the Moon no longer in reach, Earth’s orbit is no longer available for the U.S. without hitching a ride.As a result of this gap caused by the U.S. not preparing a suitable replacement for the Space Shuttle, workers, whose talents could have been re-purposed toward another manned spacecraft program, will now be lost as they hit the streets looking for another job. I can only hope enough of them land with a U.S. company so that a commercial spacecraft can be developed soon.
28,235 Views By Aoife Barry “It took over my life, really, for 10 years in a nice way,” says Howard when we speak. He’s in the midst of promoting the book, but he clearly hasn’t tired of talking about Browne.“It was a life’s work really, it’s just one of those books: when I look at it I feel like it’s a big accomplishment – and I don’t mean that in a big headed way.”He put years of work into I Read the News Today, travelling to England to do hours-long interviews, tracking down friends and family of Browne, and gaining the trust of those closest to the young man.In the end, he had 2.5 million words, which he had to whittle down to 110,000.“I didn’t want to finish the work on the book until I was sure I could speak to everybody I could possibly get,” says Howard. He would work on it for a few months of the year, in between writing his Ross O’Carroll Kelly books and other work.“It is a strange thing when somebody immortalises you in song as John Lennon did with Tara Browne – he made his name famous but somehow that shrank the story, it’s like he reduced Tara’s life to lines of a song, albeit one of the greatest songs ever written, but people know about Tara as the lucky man who made the grade and blew out his brains in the car,” says Howard. The Beatles at London airport prior to boarding plane for New York and a two-week tour of America on August 13, 1965. Source: AP/Press Association ImagesWhen he describes Browne’s almost unbelievable life, it’s clear why Howard was fascinated with him.His life transected with so many interesting people. He had all these wonderful people – he met Igor Stravinsky, met Humphrey Bogart and Truman Capote, Lucian Freud, he met Samuel Beckett… this was all before he was 12. Oct 30th 2016, 8:15 AM Tweet thisShare on FacebookEmail this article Source: Paul Howard/Twitter He was incredibly sophisticated because of who he had met and because of all the experiences he had. And because he had never gone to school.According to Howard, the Beatles song didn’t just reduce Browne’s life down to a few lines – it also downplayed the role he played in sixties London.“The song implies that he was a peripheral figure. In swinging London everybody knew who Tara Browne was, no one was in any doubt as to who he was,” assures Howard.He was a friend of the Rolling Stones and the Beatles, and especially close to Paul McCartney. He ran a shop called Dandy Fashions, and could be seen driving around London in his ill-fated Lotus Elan.He also came to prominence at a time when the 1960s were exploding in a technicolour riot in London. It was a time when “class was ceasing to matter – it didn’t matter if you were high born or so called low born, suddenly the world was a meritocracy and it was suddenly more about what you could say and what you could do”. Source: TheBeatlesVEVO/YouTube“It’s such a haunting piece of music”Howard’s parents lived in London during the 60s and had a deep love for the band – his father even saw the Beatles when they played the famed Cavern venue.They passed this love on to their child, with Howard – who grew up in England, later moving to Ireland as a schoolboy – having many memories of listening to his dad’s original copy of Sergeant Pepper’s Lonely Hearts Club Band, with its Peter Blake diorama on the front.“I think the first time I ever heard A Day in the Life I was really spooked by it,” says Howard now. “It’s such a haunting piece of music, that intro.”He always wondered about the veracity of the story behind the song, and a decade ago got to interview Tara Browne’s older brother, Garech de Bruin (a founding member of the Chieftains) on the 40th anniversary of Browne’s death.Howard “came away from it thinking I hadn’t done a really good job, I hadn’t even scratched the surface”.So he decided to set about and find the real story of Tara Browne’s life. “There are so many myths about Tara Browne and if you go on the internet you can find out hundreds of facts of his life that aren’t actually true,” he says. “So it was extracting the real person from the mythology – that was my job when I started to write the book.”“It’s very invasive, to write a biography” Source: SchroerHoward was conscious that by talking to those closest to Browne, he was delving into a sad and painful time of their life.“It’s very invasive to write a biography about somebody,” he says. “You are intruding into people’s lives and it’s even more sensitive when you are writing a biography of someone who is dead and someone who died at such a tender age.”Browne was taken from his brother just as they were getting very close, and also from his sons Julian and Dorian before they even had a chance to get to know their father.“I knew there was going to be a lot of stuff that I was going to be bringing up that would be difficult for them,” says Howard.One of the people he aso had to win over was Nicky, Browne’s estranged widow. She passed away four years ago but before her death she and Howard got to speak about her late husband.The couple had two young children and married while they were just teens. When Browne died, they were in the process of getting divorced. Marianne Faithfull. Source: PA Archive/PA ImagesOnce Howard had the imprimatur of the four key people in Tara Browne’s family, it became much easier to write the book.Two essential figures Howard got to interview were Marianne Faithfull and Anita Pallenberg, who both had key roles in the Swinging London scene.“It was not just a case of phoning her up and saying ‘I’ll chat to you next week’,” says Howard of Faithful. “I had to win her trust.” Pallenberg, meanwhile, took years to contact – it took letters, knocks on her door, and finally a phone call from Garech’s house ( Lugalla in the Wicklow Mountains) after two glasses for Dutch courage.“She was so sweet,” says Howard of Pallenberg, who was the former partner of Brian Jones and Keith Richards. “She said ‘the only reason I didn’t reply to your letters was I didn’t know if you had Garech’s approval’.”Howard was on the plane to meet her the following day – and proved to himself that, despite his fears, she was indeed a real person. ”To finally meet her was amazing – she was everything thing I thought she would be,” he recalls. “She was such a sophisticated lady, so smart. She has done so much living.”To sit down with a woman who was witness to so much of the 60s was one of the highlights of Howard’s journalistic career. Keith Richards of the Rolling Stones and Anita Pallenberg in 1969. Source: AP/Press Association ImagesYouthquake in LondonHoward was born in 1971, but the 60s are a period he has long been fascinated with.“The music in our house growing up, it was always 60s music. When we lived in England, Sunday lunch was always accompanied by the soundtrack of 60s music. It was what my parents used to call music from the good old days. In a strange way I grew up feeling nostalgic about an era I never ever lived through, and everything about the era excites me.”His mother and father would talk about the 60s being a very happy, optimistic time. “It was an ideal,” says Howard now. “They had a sense they could change things.”There were several reasons why the 60s were so unique, says Howard – from the UK bands taking US music and selling it back to the Americans, to the advent of the mini skirt, the appearance of the Pill, and Britain re-establishing itself post-empire.“[After WWII] London was still bomb scarred. A lot of people were still living on rationed food and suddenly the children of the Blitz – you could say a lot of these kids would have been conceived in air raid shelters – suddenly were coming-of-age teens in the early 60s.”These teens, unlike their parents or grandparents, didn’t have to fight a war, and conscription was gone.“They can suddenly see the future and define themselves in their own ways. Like our Celtic Tiger there was an economic boom – it was young people who had the money,” explains Howard. These kids with money were the taste-makers of their generation – if they said the Beatles were the next big thing, they became the next big thing, says Howard.You had all this fusty grey establishment being pushed to one side and this absolute youthquake appearing in London.The time was ripe for a figure like Tara Browne to make his mark.“It was an extraordinary time… when I read about it I get goosebumps, because I wish I was there. I think it is one of the great golden eras,” says Howard. Ringo Starr, left, and Paul McCartney Source: AP/Press Association ImagesIs there a lesson in Tara Browne’s story? “I don’t know if there is a lesson from it,” muses Howard.“Probably if there is a lesson, it’s that these eras come and go like the tides and eventually all the optimism dies and that’s the sad thing.“Tara died just on the cusp of when people realised that all this optimism they had for the world, about making the world a better place, it was optimism. And so Tara still represents to them the world when it was bright and happy, and people really did think they could for instance bring an end to Vietnam [War].”The process of writing the book has also had a personal lesson for Howard – it taught him the discipline of journalism again after years of writing fiction. “My stuff comes from my own sick imagination,” he laughs. “This was different – this was phone calls, detective work, and I loved that. I’d probably forgotten when I stopped being a journalist.”Now that he’s finished this decade-long labour of love, is Howard thinking about his next project? “I don’t know if I’d find another subject I’d consider worthy of 10 years,” he says.There is another Ross O’Carroll Kelly book due to be finished before Christmas, but Howard admits:“I’m sure in the new year I will be itching to get stuck into something. I loved doing the research for this. The 60s is something else.”Just like the story of Tara Browne, something else indeed.I Read the News Today, Oh Boy is out now.Read: These are the best books in Ireland right now – and you get to vote for your favourites> HE’S BEST KNOWN for creating the quintessential Dublin 4 jock Ross O’Carroll Kelly – but for the last 10 years, author and former journalist Paul Howard has also been working on a book about an entirely different individual.Howard has penned the biography of the fascinating Tara Browne, a young Irishman and Guinness heir whose death is explored in the Beatles song A Day in the Life.Browne died aged just 21 in a car crash in London, when his Lotus Elan collided with a parked lorry after driving through a red light.Son of Oonagh Guinness and Dominick Browne, Tara packed a lifetime into just over two decades. He was a socialite, friend to the Beatles and the Rolling Stones, heir to the Guinness empire, father, husband, lover, business owner and swinging Londoner.Howard told TheJournal.ie how he interviewed over 100 people in his quest to tell the real story of Browne’s life, moving past the online myths, and even the Beatles song itself, to uncover the young man’s essence. Image: /Photocall Ireland Short URL Spent ten years of my life researching the life and times of Tara Browne. A courier just arrived at my door with this. #emotional pic.twitter.com/wIe3Lb2uDy— Paul Howard (@AkaPaulHoward) September 29, 2016 http://jrnl.ie/3048964 12 Comments Ross O’Carroll Kelly creator uncovers the story of a tragic Irishman immortalised in a Beatles song We talk to Paul Howard about his new book. Sunday 30 Oct 2016, 8:15 AM Share49 Tweet Email1 Image: /Photocall Ireland He blew his mind out in a car / He didn’t notice that the lights had changed / A crowd of people stood and stared / They’d seen his face before / Nobody was really sure / If he was from the House of Lords – The Beatles, ‘A Day in the Life’
http://the42.ie/3179925 24,347 Views By Ryan Bailey Share Tweet Email Standing up and speaking out: Fionnuala McCormack on the rules denying her medals The three-time Olympian would prefer if someone else did the talking but as a runner who has consistently been denied medals by Kenyan-born athletes running for Turkey, McCormack is concerned by the lack of action from those at the top. Saturday 21 Jan 2017, 10:00 AM FIONNUALA MCCORMACK IS a long-distance runner. She is a professional athlete, who eats, drinks and sleeps athletics. She trains everyday, represents her country with pride and distinction and, nearly two decades on, still loves what she does; that will never change.A three-time Olympian, a two-time European Cross Country gold medallist and a 3000m European Indoor bronze medallist. A medal record which speaks for itself and positions her alongside the likes of Catherina McKiernan, Sonia O’Sullivan and Derval O’Rourke as one of Ireland’s most eminent athletes.We should, in truth, be talking about an illustrious 16-year international career and a superb performance at the most recent Olympic Games, during which McCormack finished 20th in just her second championship marathon; but first we need to address the elephant in the room. We need to talk about athletics and the issues infecting the sport.Her achievements may have placed her on a pedestal but McCormack would prefer not to be talking at all. If it was up to her, she’d just run yet there is a sense of responsibility there. A duty to speak up, raise concerns, ask questions, provoke a conversation and, in an ideal world, make a difference.So here she is. Again.In July of last year, McCormack gave a forthright and impassioned interview shortly after coming off the track at the European Athletics Championships in Amsterdam. She had just finished fourth in the 10,000m final, agonisingly missing out on Ireland’s first medal at the event. Source: James Crombie/INPHOThe Wicklow native recorded the second best time of her career over that distance but it wasn’t enough as Yasemin Can, the Kenyan-born Turkish runner, stormed to gold.Two months previously, Can – formerly Vivian Jemutai — and Meryem Akda had their switch of allegiance to Turkey approved by the International Association of Athletics Federation (IAAF). Neither had lived or trained there. It wasn’t unprecedented, but the anomalies in the system were beginning to be laid bare.In the heat of the moment, McCormack vented her frustration.She might regret it now — “I may have said too much” — but her words provoked a response. It wasn’t the way she wanted to hit the headlines that week, and the 32-year-old feels she may have been slightly misquoted, but it got people talking.“There doesn’t seem to be anything that can be done about it,” she said at the time.“Someone just needs to lay down the law and that should be the end of it. It doesn’t need to be something you have a debate about. It’s obvious.”Fast forward seven months and nobody has laid down the law. It remains patently unscrupulous and immoral but there’s still no debate.Yasemin Can and Meryem Akda are still running for Turkey, winning European medals for Turkey and not one thing is being done about it. Doping is inexcusable, country hopping is just wrong and the IAAF is burying its head in the sand and masquerading under false pretences.“It’s not normal what has happened and it’s just not just eligibility issues I don’t think,” McCormack tells The42.“To even change from one country to another like that with no connection is wrong but you also have to ask the wider question of how do you switch to one country with a questionable background and have large amounts of money involved and no eyebrows raised at the top? Source: Sasa Pahic Szabo/INPHO“I came straight off the track at the Europeans after coming fourth and I was frustrated with myself for coming fourth. I’ve come fourth in a lot of Europeans in both the track and the cross country and my frustration was completely with me when I came off the track and nothing to do with what happened in front of me.“I don’t want to be seen as someone who is giving out. I know you can’t win every time and that’s sport. I came fourth, an issue was brought up and I gave my opinion on it. It was pushed and pushed from there. I don’t want to have a go at people but sometimes athletes and coaches more often or not need to ask these questions.”McCormack has a lot of questions. By her own admission, she overthinks everything and it all stems from a genuine love of the sport. She gets so frustrated about it because athletics is her sport. It’s what she’s passionate about and, in her own words, all this hurts.It doesn’t hurt any more because she has been one of the athletes denied by the IAAF’s rules. It hurts because those at the top, those sitting on boards who are meant to be protecting, governing and promoting the sport, are making a joke out of it.“The fact that it’s allowed to happen is part of the problem and I don’t think we should not blame the individual athletes either because they’re adults and they’re making this decision but they shouldn’t be allowed make it,” she adds.“It’s purely money because it’s not patronage. They don’t sing the Turkish national anthem, they fly in from Nairobi for a race and warm-up separate to everyone else. The relationship isn’t even frosty between them and the Europeans. There just isn’t a relationship.“The questions I want to ask are how do they improve by two minutes over 10k in one year? To me that’s the massive problem. It’s kind of glossed over by the fact people are changing country but that has been happening for years and it’s turned into a complete farce really. McCormack after finishing fifth at the European Cross Country last December. Jan 21st 2017, 10:00 AM Ireland collapse in spectacular fashion as they suffer Afghanistan mauling in T20 final 20 Comments Source: Matthias Schrader“In a way I wonder why other people don’t talk about it and I wonder if it is better to keep the mouth shut. That’s not really what we’re there for but it is the athletes who have to say something at some point.”The issue reared its ugly head again in December last. At the European Cross Country Championships in Italy, Can and Akda stormed to gold and silver respectively. The gap between them and the rest of the field was such that it left another sour taste in the mouth.McCormack finished fifth that day in a time of 25:28 and had been in contention for bronze for much of the race but faded in the closing stages. She crossed the line 42 seconds behind Can.“At this stage I don’t really know what else I can say about it,” McCormack continues. “I can’t do anything about it, someone else has to do it and it’s at the top that it needs to be sorted out.“Sometimes I see it like a TV series being played out in front of us but the only positive thing is that in a world of war and terror, the inadequacies of sporting organisations are generally not matters of life and death.”It’s not, but it matters. It matters to McCormack and to those of us who want the sanctity of sport restored. Those of us who want athletics to be about athletics. Speed, power, endurance, close finishes. Sport at its purest form.All of this is evident in the video European Athletics produced at the end of 2016 but the ‘highlights reel’ doesn’t tell the whole story. It tells the story the governing body want to tell, or, more specifically, avoids the one they don’t want to face questions about. Source: European Athletics/YouTubeIn a video titled ‘the best moments of European Athletics in 2016′, the omission of a three-time gold medallist from that year speaks volumes. Yasemin Can is conspicuous by her absence.“Is this a case of European Athletics glossing over their inadequacies or avoiding the inevitable questions about athletes rising from mediocrity to becoming world-class Europeans on the other side of the world in a matter of months?” McCormack asks.“Would anyone other than an athlete who has been consistently denied medals by Turkish athletes even notice these anomalies? Should I even mention having noticed? Is it a sign of incompetence or just an oversight?”These questions reverberate, but McCormack’s focus remains on what she can control, and that is her training and steadfast commitment to a ‘hobby’ which has given her so much.A couple of weeks ago, McCormack finished ahead of Akda, but behind Can, to claim silver at the Great Edinburgh Cross Country. It was an encouraging start to a year which includes the World Athletics Championships in London this summer.“It doesn’t put me off at all,” she insists. “I try that bit harder. Last weekend [in Edinburgh] I was closer to Can and there is hope. Ideally you want to win but you want to run for enjoyment and as a passion and to represent your country even if I did have questions about who else is running.“With all the negativity in this sport, and I can be negative about it as well, you have to put all that to one side, ignore it and run for what you want to run for. Source: James Crombie/INPHO“It’s as simple as that and I don’t think it needs to put you off what you’re doing. Athletes from Turkey have done me out of medals a good few times so I suppose that is motivation as well but I don’t really feel like I need that to motivate me.”It must be stressed that McCormack is not resentful or bitter. She isn’t doing this for the publicity or the headlines. She doesn’t like the spotlight and certainly doesn’t like being quoted. If truth be told, she would prefer if this interview wasn’t published at all.She would be far happier if it was someone else doing the talking but this all fascinates her; the issues blighting athletics, the stench of injustice and the challenges faced by women in sport and, in particular, in minority sports.But she is the one doing the talking and standing up. She is the one raising questions and looking for answers.“Surely people can see that there is a problem here,” she adds. “Athletes have to take responsibilities for their actions but shouldn’t be aided in their amoral ways by amoral money grabbing, power-hungry federations and governing bodies.“It’s almost like a catch 22 situation. I just want to run but I think about these things a lot. You have to be so careful about what you say but then if you don’t say anything you’re not helping the cause or not creating the discussion.“I never started running to be famous. When I started running I never thought I’d go to the Olympics, I never thought about it that way. It’s just a hobby and one thing led to another and I’m competitive and love training so it just went from that.“I’m not on Twitter or any of that. I just want to get away from all that yet there’s time when I do recognise that I have to say things or put the questions out there or the ideas out there. To invoke an interest so the wider public can hold their own discussions and for this to be talked about.”Let’s hope McCormack gets people talking and the issues she raises stimulate some semblance of change or action from those in power. Meaningful action, not mumbling excuses.“You won’t want or need to listen to me any more,” McCormack adds. “But I hope my voice doesn’t fall on deaf ears any longer.”Fionnuala McCormack was speaking ahead of the Great Ireland Run. It takes place on Sunday 9 April 2017. More details available here.The42 is on Instagram! Tap the button below on your phone to follow us! Follow us: the42.ie Short URL McCormack after finishing fifth at the European Cross Country last December. Tweet thisShare on FacebookEmail this article
Découverte d’une nouvelle espèce de lézard minuscule Publiant ses travaux dans la revue Zootaxa, une équipe internationale de biologistes a identifié une nouvelle espèce de scinque – une famille de lézards – dans le nord-ouest de la Nouvelle-Calédonie.C’est dans un piège à insectes placé dans une garrigue d’acacias, à 400 mètres d’altitude, dans le massif d’Ouazangou, en Nouvelle-Calédonie, que des biologistes ont découvert un lézard juvénile de la famille des Scincidae (ou scinques). Mais celui-ci s’est révélé appartenir à une nouvelle espèce qu’ils ont nommée Caledoniscincus constellatus. D’autres spécimens ont également été trouvés sur la côte, à la Pointe de Vavouto.À lire aussiMaladie de Charcot : symptômes, causes, traitement, où en est on ?Avec 4,6 à 5,2 centimètres de longueur, les mâles sont encore plus petits que les femelles, qui mesurent jusqu’à 5,7 centimètres. Les individus des deux sexes présentent une surface ventrale jaune vif et une surface dorsale gris-brun avec de petites tâches blanches, ornée de rayures transversales bicolores chez le mâle et de tâches sombres chez la femelle.”La conservation de l’espèce est préoccupante compte tenu de sa distribution hautement restreinte dans une région qui a été, et continuera d’être, fortement impactée par l’occupation humaine. L’espèce serait classé comme ‘en danger critique d’extinction’ selon les critères de l’UICN [Union internationale pour la conservation de la nature]”, concluent les découvreurs cités par Sci-news. Le 23 mars 2012 à 14:02 • Maxime Lambert
Facebook Twitter Google+LinkedInPinterestWhatsApp Facebook Twitter Google+LinkedInPinterestWhatsApp#Bahamas, December 17, 2017 – Nassau – Issues which women face today including domestic violence, child abuse, unemployment, single parenting and sexism were among the issues discussed at a Women’s Forum put on by the Ministry of Social Services and Urban Development. The Forum, Monday, December 11th, 2017 at Gary and Myrtle Curry Youth Centre, Collins Avenue, brought to a close two weeks of events in observance of National Women’s Week 2017. The theme was “Strong Women, Strong Families, Strong Communities.”In addition to providing information, the Forum was designed to promote awareness of women’s issues, offer guidance and survival tips and help to improve the standards of women. Panelists for the Forum were: Rev. Gloria Ferguson, Mt. Ararat Baptist Church; Dr. Jacinta Higgs, educator and former Senator; Lillian Quant-Forbes, acting director, Department of Social Services; Senator Jasmine Dareus, Deputy Director, Urban Renewal Commission; Ramona Farquharson-Seymour, Counsel and Attorney-at-Law.The event was attended by: the Hon. Miriam Emmanuel, MP for MICAL, Sherrylee Smith, Permanent Secretary; Vaughn Miller, Parliamentary Secretary and senior government officials. The Hon. Lanisha Rolle, Minister of Social Services and Urban Renewal, said The Bahamas has a “strong” foundation laid by “strong” men and women and it is the duty of descendants, successors, and heirs to build upon that.“From 1962 to now, the women of The Bahamas have charted a course for the upward movement and equal advancement of women of all walks of life.Beginning with the Women’s Suffrage, a movement to ensure that women were and are given the right to vote; mothers, secretaries, housekeepers, housewives, teachers, all realized that women of every strata had and have a role to play in every sector and at every stage of this country’s development. Hence a strong foundation was laid by persons like Eugenia Lockhart, Mary Ingraham, Hon. Doris Johnson and others. As a result of their labour and sacrifice, women voted for the first time in 1962.”She said the work was continued by Janet Bostwick, Cynthia Pratt, Dame Ivy Dumont, Italia Johnson, Dame Joan Sawyer, Loretta Butler-Turner and wives of Bahamian prime ministers stood with their husbands and ensured that the voices of women were heard.“We live in this strong house built by women and having regard for their labour and sacrifice, we simply cannot come down,” said Minister Rolle.She declared that the women of The Bahamas are doing a great work and urged them to continue to work together to build strong women, strong families and strong communities. A question and answer period followed the discussion.The following numbers are available to get assistance:323-0171, 323-3859, 422-2763 and 322-2763.By: Kathryn CampbellPhoto captions:Header: Panelists in the Women’s Forum are pictured. From left: Senator Jasmine Dareus, Deputy Director, Urban Renewal Commission; Lilian Quant-Forbes, Acting Director; Ramona Farquharson-Seymour, Counsel and Attorney-At-Law; Rev. Gloria Ferguson and Dr. Jacinta Higgs, educator and former Senator.Insert 1: The Hon. Lanisha Rolle, Minister of Social Services and Urban Development, speaks at the Women’s Forum at Gary and Myrtle Curry Youth Centre.Insert 2: Audience at the Women’s Forum are pictured.Insert 3: Officials in attendance at the Women’s Forum. Shown from right Vaughn Miller, Parliamentary Secretary, The Hon. Miriam Emmanuel, MP for MICAL and Coralie Adderley, Chairperson, National Women Advisory Council. BIS Photos/Raymond A. Bethel, Sr. Related Items:
16 teams have qualified to the Round of 16 after coming on top in their respective groups. They will battle out for 13 days to crown only one champion.After very exciting and surprising results in the Group Stage of the 2019 AFC Asian Cup, the stage is set for the Round of 16.16 nations have come out on top and will face each other off for 13 days until the world knows who will be champion in February 1st.Hosts United Arab Emirates qualified in the first place of Group A with 5 points, followed by Thailand and Bahrain with 4.From Group B only two survived: Jordan surprised everyone by ending on first place with 7 points, while Australia ended up second with 6.As expected South Korea finished first of Group C with a perfect run of 9 points. China and Kyrgyzstan followed with 6 and 3 points respectively.Qatar will plan soon how to aim higher Manuel R. Medina – February 3, 2019 The Qatari national team won the AFC Asian Cup for the first time ever, but the 2022 FIFA World Cup hosts don’t want it to end there.Iran and Iraq tied with 7 points, but the Persians ended up first of Group D thanks to the goal difference. Vietnam squeezed in with 3 points.From Group E, Qatar and Saudi Arabia advanced to the next round with 9 and 6 units each.And from Group F, Japan claimed first place with 9 points, followed by Uzbekistan with 6 and Oman with 0.India, Palestine, Syria, Philippines, Yemen, Lebanon, North Korea, and Turkmenistan will have to wait four more years for the next edition of the AFC Asian Cup.Find out how the Round of 16 will be played here.
Operations resumed at Chattogram sea port on Saturday afternoon after a 30-hour disruption caused by cyclonic storm Fani, reports UNB.Normal cargo and containers handling started around 5:00pm, said Md Omar Faruk, secretary of Chattogram port authorities.Loading and unloading of goods from vessels resumed in the evening, he added.The weather office had announced danger level six for the port when cyclone Fani approached. It hit Bangladesh in the morning.Fani has now weakened into a well-marked low over the Mymensingh-Netrokona region.
UofL started out hot, jumping out to a 22-6 lead, and ended the first quarter with a 23-11 advantage. Story Links The Cardinals improved to 25-2 on the year and 12-2 in ACC conference play, while the Eagles fell to 14-14 overall and 3-12 in conference play. Durr finished with 23 points on 6-11 shooting, 1-3 from 3-point land, and was 10-13 from the free throw line. She added three rebounds and three steals. Box Score (PDF) Walz Postgame Video Highlights LOUISVILLE, Ky. – Asia Durr led the way with 23 points as No. 4 University of Louisville women’s basketball rolled past Boston College, 87-51, at the KFC Yum! Center on Sunday afternoon. UofL outrebounded Boston College, 38-27, and outscored their bench, 32-18. The Cardinals outrebounded the Eagles, 22-11, in the first half, led by Sam Fuehring’s six, and went to the break with a 45-27 lead. Boston College opened the second stanza on an 8-3 run to trim the lead to 13, but did not get any closer as Louisville cruised to a 36-point win. The Cardinals’ defense controlled throughout, as they finished with 11 steals, forced 24 turnovers, scoring 27 points off of those turnovers. Fuehring was 5-6 from the floor and finished with 11 points and seven rebounds. Kylee Shook had 14 points on 6-7 shooting, 2-2 from 3-point range, and pulled down seven rebounds. Lindsey Duvall tied a career-high with nine points on 2-3 shooting from beyond the arc. Photo Gallery Durr/Fuehring Postgame Video Next up, the Cardinals host senior night vs. No. 9 NC State on Thursday, Feb. 28 at 7 p.m. ET.Print Friendly Version
The multicolor CRISPR labeling system exploiting Cas9 orthologs. Designs of dCas9 (“d” for “nuclease-dead”) ortholog-fluorescent proteins: S. pyogenes Sp dCas9, N. meningitidis Nm dCas9 and S. thermophilus St1 dCas9 fused to NLSs and under the control of the CMV-TetO promoter. The cognate sgRNAs Sp sgRNA, Nm sgRNA, and St1 sgRNA are under the control of the U6 promoter, and their sequences are shown below, with the mutations in red and hairpin extensions in orange. Directed by the appropriate sgRNA, different chromosomal loci are expected to become fluorescently labeled with any one of the three spectral versions of dCas9. In the diagram, such hypothetical targeted sequences are indicated by the color matching a particular dCas9/sgRNA ortholog. Credit: (c) 2015 PNAS, doi: 10.1073/pnas.1420024112 © 2015 Phys.org (Phys.org)—Is there a way to peer inside the nucleus of a living cell and see how the genes interact? After the completion of the Human Genome Project in 2001, researchers have focused on epigenetic factors, spatial orientation, and non-coding repeated sequences, all of which affect genetic regulation and function. Hanhui Ma and Thoru Pederson from University of Massachusetts Medical School have demonstrated a new technique that resolves the spatial orientation between two target genetic repeated units within a living human cell. Their work is reported in the Proceedings of the National Academy of Sciences. Ma and Pederson have done prior work labeling genes with a fluorescent protein tag using TALEs technology. However, the CRISPR/Cas9 system has proven to be the formidable approach to gene editing because it is able to target more than one genetic sequence at a time.Other gene editing systems typically require a particular endonuclease to splice a specific gene, but for this system, Cas9 is used for all sequences, allowing for multiple targets within a single cell. Furthermore, to target a sequence, either for editing or labeling, researchers can make a synthetic RNA strand, known as the guide RNA, that is complementary to the target DNA sequence. While CRISPR/Cas9 has some limiting factors, such as off-target cuts or optimizing the PAM sequence, this is a robust method for targeting multiple genes.In this experiment, Ma and Pederson used a catalytically inactive Cas9 (dCas9) endonculease to insert a fluorescent protein tag on the target sequence without causing a break in the DNA strand. Their goal was to insert two different labels that would target two different sequences. This would allow them to study the gene regions relative to each other as well as see where repeated locations occurred. Their first step was to optimize their system. They chose to target the telomeric repeat for optimization and used three known Cas9 variants for the PAM sequences, S. pyogenes, Neisseria meningitidis, and Streptococcus thermophilus which were fused to red, green, and blue fluorescent proteins, respectively. Overall, the factors that they optimized were the choice of promotor driving the expression of dCas9, the number of fluorescent proteins fused in tandem, the length of guide RNAs, the PAM sequence choice, the choice of the sequence composition of the guide RNAs, and the number of nuclear localization signals. After optimizing these parameters, they were able to successfully observe all three targets.They then tested whether two different CRISPR/Cas9 systems can simultaneously label the same sequence. They used S. pyogenes and Neisseria meningitidis systems and targeted one strand of the telomeric repeat. They identified two similar patterns showing two flourescence markers on the same genetic targets. They tested co-expression using S. pyogenes and Streptococcus thermophiles, and obtained similar results.They then tested different, repeated chromosome-specific sequences. They chose two sequences on chromosome 9 and another sequence that is localized on chromosome 13. They were able to resolve the two sequences on chromosome 9 as being approximately two micrometers apart, which corresponds to the known distance between these sequences on the physical map of chromosome 9. They were also able to resolve two sequences between two different chromosomes, 9 and 13, that were even closer in proximity than the sequences on chromosome 9.Finally, they wanted to test the resolution of their technique by choosing two sequences that are closer together on the same chromosome than their initial test with chromosome 9. They looked at two sequences on chromosome 13 that are known to be 1.9 Mbp apart from each other. They were able to resolve these using their multicolor CRISPR/Cas9 technique, and proved that it can resolve sequences that are 2.0 to 1.9 Mbp apart.These experiments were able to resolve multiple interchromosome and intrachromosome target repeated sequences using flourescent protein tags. The authors are interested in looking at repeated sequence patterns that are specific for each chromosome. However, they envision this technique eventually being used for resolving two single-copy sequences. Citation: Color-coading gene sequences in human cells (2015, March 4) retrieved 18 August 2019 from https://phys.org/news/2015-03-color-coading-gene-sequences-human-cells.html More information: “Multicolor CRISPR labeling of chromosomal loci in human cells” Hanhui Ma, PNAS, DOI: 10.1073/pnas.1420024112AbstractThe intranuclear location of genomic loci and the dynamics of these loci are important parameters for understanding the spatial and temporal regulation of gene expression. Recently it has proven possible to visualize endogenous genomic loci in live cells by the use of transcription activator-like effectors (TALEs), as well as modified versions of the bacterial immunity clustered regularly interspersed short palindromic repeat (CRISPR)/CRISPR-associated protein 9 (Cas9) system. Here we report the design of multicolor versions of CRISPR using catalytically inactive Cas9 endonuclease (dCas9) from three bacterial orthologs. Each pair of dCas9-fluorescent proteins and cognate single-guide RNAs (sgRNAs) efficiently labeled several target loci in live human cells. Using pairs of differently colored dCas9-sgRNAs, it was possible to determine the intranuclear distance between loci on different chromosomes. In addition, the fluorescence spatial resolution between two loci on the same chromosome could be determined and related to the linear distance between them on the chromosome’s physical map, thereby permitting assessment of the DNA compaction of such regions in a live cell. Explore further End of CRISPR-CAS9 controversy Journal information: Proceedings of the National Academy of Sciences 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.
To explain the unconventional phenomenon, they proposed a gravity-driven assembly model where the salt-initiated aggregates grew gradually and settled down due to gravity to concentrate and evolve into a hydrogel at the bottom. The scientists supported this model using UV-VIS absorption spectra to visualize the entire process of gelation. Since hydrogels can self-repair, the materials displayed promising self-healing properties in diverse environments without external energy input. Du et al. conducted time-lapse characterization studies to test the extremely fast formation of aggregates with multiscale microstructures. Additionally, they competed time-lapse transmission electron microscopy (TEM) and in situ optical tests to reveal the evolutionary footprints of 3-D networks at different scales. Using the analytical techniques, the scientists observed the formation of gold nanoparticle (NP) dimers, followed by their gradual axial growth to form nanowire-structured networks during the sol-gel process of NMF fabrication. The scientists showed how the experimental outcomes varied the form (gel to powder) and color (black to brown) of the ions, to strongly correlate to the salting-out effects as dictated by the Hofmeister series (a classification of ions according to their ability to salt-out or salt-in proteins). They used time-lapse TEM imaging to further reveal the growth mode of NPs and the ligament size variation during network development and proposed a possible mechanism during NMF formation via the sol-gel process. Accordingly; The original NPs approached each other instantly on the addition of salts due to electrostatic screening.The ligands then partially stripped away from the NPs by oppositely charged cationsFollowed by the generation of NPs to form aggregates driven by the raised surface energy of uncapped NPsThe aggregates repeated the process across axial and radial directions For the aggregates to finally settle by gravity-driven sedimentation to form hydrogel at the bottom.The ability to systematically manipulate the ligament size and corresponding physical properties of NMAs was not previously realized. As a result, Du et al. deeply studied the gelation process to unlock specific ion effects and strategies of manipulation. For this, they deliberately selected specific salts (NH4SCN, NH4NO3 and KCl) as initiators. , Nature Analysis of the overall gelation process of gold NPs. (A) Digital photos of the gel preparation process. (B) Schematic demonstration of the gelation process and a corresponding force analysis. (C) The gradient distribution during the gelation characterized by ultraviolet-visible (UV-vis) absorption spectra. a.u., arbitrary units. (D) Several pieces of as-prepared hydrogels can assemble to one piece. (E to H) Time-lapse (E) UV-vis absorption spectra, (F) hydrodynamic size, (G) transmission electron microscopy (TEM), and (H) optical microscopy characterization during gelation. The inset in (E) shows the time-lapse UV-vis absorption evolution at 510 nm, which was recorded during the first minute upon reaction. (Photo credit: Ran Du.) Credit: Science Advances, doi: 10.1126/sciadv.aaw4590 During electrocatalysis of alcohol electro-oxidation reactions, the scientists showed that Au-Pd and Au-Pd-Pt aerogels performed substantially better compared with commercial Pd/C or Pt/C catalysts. The results also showed higher performance compared to previously reported NMAs such as Pd-Cu, Pd-Ni and Au-Ag-Pd aerogels. However, the scientists recorded considerable current decay for the Au-Pd and Au-Pd-Pt aerogels during long-term tests; a common issue for commercial catalysts. The optimized electrocatalytic potential will allow aerogels to function as anodic catalysts in various fuel cells and enhance electrical conductivity to facilitate efficient electron transfer during electrocatalysis.In this way, Du and co-workers developed a specific ion-directed gelation strategy to rapidly manufacture and flexibly manipulate NMAs at room temperature from a nanoparticle (NP) solution. Using the experimental results and DFT calculations they proposed an overall mechanism for the sol-gel process. The present work provides a new concept and straightforward approach to fabricate different NMAs. The work will pave the way forward for materials scientists to design on-target, versatile NMFs for a variety of applications using structure-performance relationships to form on-demand desirable properties. The NMFs exhibited superior performance as programmable self-propulsion devices, which the scientists proved using electrocatalytic alcohol oxidation reactions. The study provided a conceptually new approach to engineer and manipulate NMFs to provide an overall framework and understand the mechanisms of gelation. The work will pave the way forward to design on-target NMFs to investigate structural performance relationships for a variety of applications. Functional porous materials are an interesting topic at the cutting edge of materials science, combining porous structures and versatile compositions for multidisciplinary applications. Noble metal foams (NMFs) are a rising star in the foam family and have gained tremendous attention during their debut. The addition of noble metals into 3-D gel networks has enhanced NMFs with a variety of potential applications but their development is still in the early stages with limited fabrication strategies and lesser understood structural properties that cannot be well manipulated.Typically, NMFs are engineered using four classes of methods, which include:DealloyingTemplatingDirect freeze-drying, and The Sol-gel process.Of these, the sol-gel process has substantially produced nanostructured and high surface areas for NMFs under mild conditions to become a popular synthetic strategy. Nevertheless, the sol-gel process is at an infant stage with numerous mysteries surrounding the process; constraining its exploration to understand gelation mechanisms for on-demand manipulation. Analysis of the specific ion effects on the gelation behavior and ligament size. (A) Summary of the status of gels induced by different ions. The inverted triangle and the diffused circle indicated the gel and powder, and black and brown indicated the color of the products. (B) Zeta potential upon reaction and (C) dh versus the color and form of products. The data were obtained by averaging detailed values from the inset diagram. (D) The low-threshold gelation concentration of salts (cs) versus the used cations. (E) The ligament size (averaged over the anions used as in the inset diagram) of as-synthesized gold aggregates versus cations. (F) Time-lapse ligament size evolution of gold aggregates induced by three typical salts. (G) Proposed mechanism for gel formation. Credit: Science Advances, doi: 10.1126/sciadv.aaw4590 Noble metal foams (NMFs) are a new class of functional materials that contain both noble metals and monolithic porous materials for impressive multi prospects in materials science and multidisciplinary fields. In a recent study now published on Science Advances, Ran Du and a team of interdisciplinary researchers in Physical Chemistry, Materials Engineering and Physics developed highly tunable NMFs by activating specific ion effects to produce a variety of single/alloy aerogels. The new materials contained adjustable composition—with gold (Au), silver (Ag), palladium (Pd) and platinum (Pt)—and special morphologies. In the present work, Du et al. presented a method for rapid fabrication and flexible manipulation of NMFs by activating and designing specific ion effects. For this, they experimentally studied in depth gelation processes alongside complementary DFT calculations to outline the overall reaction process. Du et al. realized versatile compositions with multiple alloys, ligament sizes, specific surface areas and spatial element distribution during materials synthesis. The method and the enormous ion library developed in the work will offer unprecedented opportunities to manipulate NMFs and extend to diverse colloidal solution systems, as demonstrated with electrocatalytic alcohol oxidation and a dark-to-shining chemical reaction. More information: Ran Du et al. Specific ion effects directed noble metal aerogels: Versatile manipulation for electrocatalysis and beyond, Science Advances (2019). DOI: 10.1126/sciadv.aaw4590 A. G. Slater et al. Function-led design of new porous materials, Science (2015). DOI: 10.1126/science.aaa8075 S. S. KISTLER. Coherent Expanded Aerogels and Jellies, Nature (2008). DOI: 10.1038/127741a0 Versatile manipulation of NMAs. (A) Tailor the ligament size of gold gels by introducing NaOH/NaCl hybrid salts. (B) Ligament size of gold aerogels from different references of studies previously conducted. (C) The ligament size variation with Au/Pd ratio. (D) Ligament size modulation of Au-Pd, Au-Pt, Pd, and Ag gels using different salts. (E) The dependence of density, Brunauer-Emmett-Teller (BET) surface area, and Barrett–Joyner–Halenda (BJH) pore volume of aerogels versus ligament size. (F) Demonstration of the size-dependent mechanical properties of aerogels by bending with a tweezer. From left to right are Au-Ag-NH4F (5.8 ± 0.7 nm), Au-NH4SCN (8.9 ± 2.5 nm), Au-NH4NO3 (18.2 ± 4.0 nm), and Au-NaCl (64.0 ± 13.3 nm), respectively. (G to I) STEM–energy-dispersive x-ray spectroscopy (EDX) of three alloy gels with (G) homogeneous and (H and I) core-shell architectures. Credit: Science Advances, doi: 10.1126/sciadv.aaw4590 © 2019 Science X Network Citation: Specific ion effects directed noble metal aerogels (2019, June 5) retrieved 18 August 2019 from https://phys.org/news/2019-06-specific-ion-effects-noble-metal.html Demonstration of black gels, brown gels, and black powders as prepared in the study.Credit: Science Advances, doi: 10.1126/sciadv.aaw4590 Hard carbon nanofiber aerogel becomes superelastic Du et al. first added the gold nanoparticles (NP) solution with specific salts and grounded it from 4 to 12 hours to yield the hydrogel, then freeze-dried it further to obtain the corresponding aerogel. The NMFs indicated a robust gelation capacity and completely eliminated the need for expensive concentration processes. The approach used by the scientists uniquely allowed for rapid gelation of the metal precursors at low concentrations and ambient temperature. Journal information: Science Advances Demonstration of pressing original aerogels into shining materials. Credit: Science Advances, doi: 10.1126/sciadv.aaw4590 , Science They observed a brown color for the KCl-induced aerogel, while two other aerogels with smaller ligament sizes appeared black due to strong light absorption / scattering between nanosized domains. Changing the ligament size also changed their density, specific surface area and pore volume. The scientists showed improved outcomes for ligament size and additional properties by using hybrid-salts in the experimental setup. Based on the proposed gelation mechanism, they expanded the system to include noble metals and their alloys (Ag, Pd, and Pt). The present work provided set guidelines to engineer the physical parameters of NMAs. This is an important outcome since the physical and mechanical properties of NMAs currently remain a great challenge to be realized. The straightforward, synthetic approach introduced in the present work provided a variety of bimetallic and trimetallic gels with well defined, tunable core-shell architecture.Since metals are remarkably ductile, the scientists induced a dark-to-shining transition by manually rearranging the NMAs from the millimeter to micrometer scale to regain a metallic gloss with nanostructured “mirror surfaces.” Du et al. welded together different aerogels to form macroscopic heterostructures and the extraordinary plasticity of the materials allowed the scientists to arbitrarily shape and encase the NMAs within elastomers for use as flexible conductors. Using catalytic oxygen evolution they maintained the different NMAs as an alternative to the expensive Platinum-based conductors. Explore further 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. 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Solid is a set of conventions and tools developed by Tim Berners-Lee. It aims to build decentralized social applications based on Linked Data principles. It is modular, extensible and it relies as much as possible on existing W3C standards and protocols. This open-source project was launched earlier this month for “personal empowerment through data”. Why are people excited about Solid? Solid aims to radically transform the way Web applications work today, resulting in true data ownership as well as improved privacy. It hopes to empower individuals, developers, and businesses across the globe with completely new ways to build innovative and trusted applications. It gives users the freedom to choose where their data resides and who is allowed to access it. Solid collects all the data into a “Solid POD,” a personal online data repository, that you want to share with advertisers or apps. You get to decide which app gets your data and which does not. Best thing is that you don’t need to enter any data in apps that support Solid. You can just allow or disallow access to the Solid POD, and the app will take care of the rest on its own. Moreover, Solid also offers every user a choice regarding where their data gets stored, and which specific people or groups can access the select elements in a data. Additionally, you can link to and share the data with anyone, be it your family, friends or colleagues. Is Solid a trick or a treat? That being said, a majority of the companies on the web are extremely sensitive when it comes to their data and might not be interested in losing control over that data. Hence, wide adoption seems to be a hurdle as of now. Also, since its only launched this month, there isn’t enough community support around it. However, Solid is surely taking us a step ahead, to a more free and open Internet, and seems to be a solid TREAT (pun intended) for all of us. For more information on Solid, check out the official Inrupt blog.