This year’s race will be held Friday, April 13, with a Saturday, April 14 backup race date. In a release from race officials they stated that this year “will be a historic one to watch, as this will be the last as we know it. Officially, Arctic Man featuring skiers and snowboarders will not happen in 2019.” Roughly a dozen teams have signed up for this years event. The race will take place near Summit Lake on the Richardson Highway, just north of Paxon. The event consists of teams of two , with a skier and a snowmachiner. The skier goes down a mountain, is towed by the snowmachine up another incline, and the skier goes down again. Facebook0TwitterEmailPrintFriendly分享After over 32 years the popular Alaskan Winter/Spring Event, the Arctic Man Title Race, is ending, according to race organizers. Even though 2018 is the last year for the race, organizers say there will be plenty to do at Arctic Man in upcoming years.
Politics Internet Services Comments A petition to revoke Article 50, the clause triggering the UK’s exit from the EU, went viral on Thursday, causing Parliament’s petitions site to display a notice saying it was “down for maintenance.”The petitions site was unavailable for several short periods of time after gaining traction overnight on Wednesday. “We know that the Petitions site is experiencing problems due to the number of people using the site,” said a House of Commons spokesman. “This is a mixture of people signing petitions and refreshing the site to see changes to the number of signatures. We are working to get the problems fixed as soon as possible.”At the time of writing, the petition to stop Brexit had over 827,000 signatures. According to Parliament’s own rules, a petition will be considered for debate when it reaches 100,000 signatures and the government has three days to respond.A notice on Parliament’s petitions site. Screenshot/Katie Collins “The government repeatedly claims exiting the EU is ‘the will of the people’,” the petition reads. “We need to put a stop to this claim by proving the strength of public support now, for remaining in the EU. A People’s Vote may not happen — so vote now.”The number of signatures picked up steam following a speech by Prime Minister Theresa May on Wednesday evening, in which she claimed that the Brexit crisis was not her fault, but rather the fault of politicians who refused to vote for the deal she had negotiated with the EU.As it stands, the UK will either leave the EU on March 29 with May’s deal (which has been voted down three times in Parliament), leave the EU on March 29 with no deal at all (a prospect rejected by a separate vote in Parliament), or it can revoke Article 50 and choose not to leave at all. The Prime Minister is in Brussels on Thursday to ask all 27 EU member states for an extension in the hope that it will buy her more time to pass her deal and get it ratified to ensure a smooth transition.Spokespeople from the Prime Minister’s office didn’t immediately respond to request for comment. Share your voice 4 Tags
6 Best laptops for college students: We’ve got an affordable laptop for every student. Best live TV streaming services: Ditch your cable company but keep the live channels and DVR. One lucky person will receive this turntable, these speakers and a bonus Bluetooth speaker. CNET It’s giveaway time! And once again the fabulous Fluance folks are offering Cheapskate readers a shot at some fantastic audio gear. Welcome to the Fluance Sound Sweeps! Here’s what the grand prize winner will bring home: A limited-edition RT81 record player (white)A pair of limited-edition Ai40 powered bookshelf speakers (white)An Fi20 Bluetooth speaker (bamboo)Total value of that package: a cool $500. And two runners-up will each receive a Fluance Fi20 speaker (one in walnut, one in black ash) worth $150. The turntable and speakers, by the way, are indeed limited-edition items, announced just yesterday to help celebrate Fluance’s 20th anniversary. Only a small quantity will be produced, so this is your chance to own a little bit of Fluance history. What’s more, with promo code CNET10FLU, anyone can get $10 off any order of $100 or more between now and Aug. 27.Ready to enter? You’ve got until Sept. 6 to get it done. Hit up the form below for all the details, including the rules and requirements.If you have trouble seeing the form please check this link.Good luck!Update, 11:46 a.m. PT: Corrected promo code discount to $10 off. (It incorrectly said 10% earlier. We apologize for the mistake.)CNET’s Cheapskate scours the web for great deals on tech products and much more. For the latest deals and updates, follow the Cheapskate on Facebook and Twitter. Questions about the Cheapskate blog? Find the answers on our FAQ page, and find more great buys on the CNET Deals page. Share your voice CNET Giveaway The Cheapskate Comments Tags Audio
Timothy A. Clary/AFP/Getty ImagesNew records released by the Senate Judiciary Committee offer the most detail yet about a June 9, 2016, meeting at Trump Tower between top Trump campaign aides and a delegation of Russians after an offer of help in the contest against Hillary Clinton.The Senate Judiciary Committee unleashed a new tranche of records on Wednesday that offered the most detail yet about one of the most important subplots in the Russia imbroglio.The more than 2,500 pages in the trove add the most context yet about the meeting that took place on June 9, 2016, in Trump Tower between top Trump campaign aides and a delegation of Russians after an offer of help in the contest against Hillary Clinton.The document dump also helps put the meeting into the broader context about what is known about the Russian attack on the 2016 election and the ongoing investigation about whether any Americans were involved with it — and what still isn’t known.Here’s a look at three big reasons the Judiciary Committee release was important.1. The Russians apparently tried hard to collude with the Americans. But there’s no airtight case that the Americans reciprocated.By the time Donald Trump Jr. received emails that described an offer of help from Moscow in June, Russians had been drilling pilot wells into the Trump campaign for months.The Russian government had a long-standing relationship with Trump’s top national security aide, retired Lt. Gen. Mike Flynn. Russian agents had made overtures to foreign policy adviser George Papadopoulos in London in March 2016, according to court documents. Another Russian reached out via the National Rifle Association in May, according to one congressional report.In fact, the overture that Trump Jr. received in June 2016 wasn’t even the only such outreach of that month. Another request for a meeting came into the campaign via another avenue about the same time that Trump Jr. received his now well-known email on June 3. The message described, via intermediaries, an offer of help for the Trump campaign from Russia’s top federal prosecutor, Yuri Chaika.After all the earlier Russian attempts to get through, here was finally one known to have worked: “If it’s what you say, I love it, especially later in the summer,” Trump Jr. wrote to the intermediary who pitched him the meeting. He told Senate investigators that what he “loved” was the prospect of getting damaging information about Clinton.Trump Jr. invited his brother-in-law Jared Kushner and then-Trump campaign chairman Paul Manafort to host attorney Natalia Veselnitskaya, lobbyist Rinat Akhmetshin, real estate dealer Irakly Kaveladze and others.But Veselnitskaya didn’t bring high-powered “dirt” on Clinton that Trump Jr. had been promised, according to the accounts of people in the Judiciary Committee material. Instead, the tip she offered was about investors Dirk and Robert Ziff, who she alleged might have funneled money improperly out of Russia via Cyprus to the Democratic National Committee.That nugget didn’t impress Trump Jr. and the other Americans, according to their accounts, and evidently they did not express any desire to do the additional investigating that Veselnitskaya said would be necessary to substantiate and use it as a political weapon against Democrats.So although Trump Jr. did get something from his Russian guests, it was not the dirt on Clinton he was first promised, and not dirt sufficient for him to have made any kind of reciprocal commitment to Veselnitskaya or the others — at least according to his own testimony.Trump Jr. and Kushner say that ultimately, the meeting was of no consequence. Trump Jr. later released, on his own, the emails that set the process into motion that culminated in the meeting.For at least one other person inside this orbit, however, that move raised eyebrows. The Judiciary Committee released an email to Kaveladze from a redacted sender that referenced Trump Jr’s 2017 decision to unveil those messages: “Why did he release this email admitting to collusion?”2. It still isn’t clear what happened after the Trump Tower meeting.So one of the Russian pilot wells finally struck oil. The Russian government gets a meeting and conducts one, albeit — according to the Senate Judiciary Committee material — not along the lines of the initial premise as represented to Trump Jr.Why, though? And what happened next?It has become clear the Russian government was working to disrupt the election and that it was doing so to Trump’s benefit. But what role did the Kremlin envision Trump and his campaign playing in that scheme? Was the goal to enlist them in a cooperative effort and — assuming the accounts are accurate — did Veselnitskaya just botch the job?Or was the Russian goal of sowing chaos and mistrust within the United States more important to Moscow at that time than the goal of electing Trump? That’s what former CIA officer Daniel Hoffman has suggested: that this was about poisoning the well for everyone and planting a trap that was meant to be discovered.The meeting, in this view, was meant only to ensnare and embarrass the Trump camp in the way it has, according to Hoffman’s thesis, and thus befuddle Americans as to what went on behind the scenes in the presidential election.Why, then, would the Russians then arrange for WikiLeaks to begin releasing stolen emails that embarrassed the leadership of the Democratic National Committee the following month?Why wage such aggressive social media agitation against Clinton and in support of Trump? And why release emails later on to embarrass Clinton’s campaign chairman, John Podesta, hours after the appearance of the infamous Access Hollywood recording?There isn’t enough public evidence now to make the full story make sense. If people in Trump world used the June meeting in Trump Tower as the baseline to establish clandestine ties with the Russians, that would be significant — but there is so far no public evidence they did.Eduardo Munoz Alvarez/AFP/Getty ImagesDonald Trump Jr. arrives at Trump Tower in New York for meetings with then-President-elect Donald Trump on Nov. 17, 2016.President Trump, Trump Jr. and everyone else in the campaign denies there was any such conspiracy with the active measures the Russian government continued waging against the election. The House intelligence committee’s Republican majority has cleared Trump’s campaign of any wrongdoing.There were, however, continued contacts between people in Trump world and Russian officials. Manafort’s long-standing relationships with powerful Ukrainians, and through them powerful Russians, eventually were his undoing as campaign chairman.Then-Sen. Jeff Sessions met with Russia’s then-ambassador to the United States. A junior foreign policy adviser, Carter Page, traveled to Moscow twice as the year wore on. And Kushner and Flynn met or communicated with Russian officials after Election Day as well.The Senate Judiciary Committee material released on Wednesday increases the amount of noise about the story but does not help with distinguishing a new signal in the midst of it.3. How much did Donald Trump Sr. know about all this?President Trump has said different things at different times about what he accepts about Russia’s attack on the 2016 election — his latest position is that it took place but he will defend future elections strongly. Trump has been largely consistent, though, that he did not know in real time in June 2016 that his oldest son, son-in-law and campaign chairman hosted a foreign delegation bearing an offer of help from overseas.Trump Jr. stuck to that in the interview he gave to the Senate Judiciary Committee.Records show that Trump Jr. made a series of phone calls at the time he was setting up the meeting in Trump Tower. Two of them were to a blocked number. Trump Jr. was asked whether those calls were to his father. He said he couldn’t remember. Other witnesses have told the congressional committees that Trump uses a blocked number.If law enforcement investigators could substantiate that Trump Jr.’s calls did go to Trump Sr. during this period, that might undercut the president’s denials that he was aware of the Russian outreach.When asked about the process by which he and the White House crafted the initial statement about the meeting — a statement that did not accurately represent what the principals knew about it — Trump Jr. also told the committee he didn’t deal with his father. Instead, he said, he talked with then-White House Communications Director Hope Hicks, and he wasn’t aware of what she might have discussed with the president.In fact, Trump Jr. said, Hicks asked him whether he wanted to speak to the president and, in Trump Jr.’s telling, he said no: “I chose not to because I didn’t want to bring him into something that he had nothing to do with.”Copyright 2018 NPR. To see more, visit http://www.npr.org/. Share
Citation: Researchers discover first manganese based superconductor (2015, March 19) retrieved 18 August 2019 from https://phys.org/news/2015-03-manganese-based-superconductor.html Electron spin could be the key to high-temperature superconductivity (Phys.org)—A combined team of researchers from the Institute of Physics in China and the University of Tokyo has found the first instance of a manganese based superconductor. In their paper published in the journal Physical Review Letters, the team describes the technique they used to discover the superconductor properties in the material which many had thought would not be possible due to its high degree of magnetism. Pressure-temperature phase diagram of the helical magnet MnP . Although several different magnetic phases are indicated—helical (Screw), ferromagnetic (FM), and antiferromagnetic (AFM)—all are likely to be variants of the helical phase. Suppression of the magnetism by pressure gives rise to a superconducting phase, similar to what is observed in the related helical magnet CrAs [5, 6], as seen in the inset, where the resistivity versus temperature at a pressure of 8.1 GPa is plotted. Credit: Jin-Guang Cheng/Beijing National Laboratory 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. The content is provided for information purposes only. More information: Pressure Induced Superconductivity on the border of Magnetic Order in MnP, J.-G. Cheng, K. Matsubayashi, W. Wu, J. P. Sun, F. K. Lin, J. L. Luo, and Y. Uwatoko, Phys. Rev. Lett. 114, 117001 – Published 16 March 2015 . journals.aps.org/prl/abstract/ … ysRevLett.114.117001 . On Arxiv: arxiv.org/abs/1412.7883ABSTRACTWe report the discovery of superconductivity on the border of long-range magnetic order in the itinerant-electron helimagnet MnP via the application of high pressure. Superconductivity with Tsc≈1 K emerges and exists merely near the critical pressure Pc≈8 GPa, where the long-range magnetic order just vanishes. The present finding makes MnP the first Mn-based superconductor. The close proximity of superconductivity to a magnetic instability suggests an unconventional pairing mechanism. Moreover, the detailed analysis of the normal-state transport properties evidenced non-Fermi-liquid behavior and the dramatic enhancement of the quasiparticle effective mass near Pc associated with the magnetic quantum fluctuations. , arXiv Journal information: Physical Review Letters © 2015 Phys.org Until recently, the idea that a material such as manganese phosphide could have a superconducting state, was ruled out because conventional superconductors have a property where electrons formed couplets known as Cooper pairs—and magnetism disrupted them. But then it was found that using magnetism suppression techniques allowed researchers to discover superconductor states in some organic or even iron based materials where it wasn’t driven by Cooper pairs. In this new effort, the researchers worked backwards, subjecting materials to both a range of temperatures and varying degrees of pressure. That allowed them to test the properties of materials over a whole range of scenarios that might be likely to allow for a superconducting state to exist and to create phase diagrams. In so doing, they found that putting a sample of manganese phosphide in a freezer at 1K and then increasing pressure to 8 gigapascals suppressed its magnetism which led to a sudden drop in resistivity and thus a superconducting state. Also, because of the high percentage of volume fraction, the researchers were able to rule out the chance that the property was localized.Manganese phosphide is a helical magnet, the researchers note—which suggests that other materials with a magnetic spin that is shaped like a spiral might exist. But that isn’t the end of study for manganese phosphide, thus far nothing else is known about its superconducting state—that means more research will have to be done learn more about it in general and to find out if it might be useful for some applications. But meanwhile, because their technique worked so well, the researchers plan to carry out similar experiments on a wide variety of other materials to find out if some of them might have superconducting properties under certain conditions as well.
The choice to follow the loner track even if it means wasted resources probably sounds familiar. Such useless waste, a “tragedy of the commons,” as the authors call it, is one that societies face in all kinds of situations. Study author Jörg Gross, assistant professor at Leiden University’s Institute of Psychology, cites several examples of real-world problems from modern life that inspired the study, including use of public versus private transportation. After all, almost everyone needs to get from Location A to Location B. Rather than create universal public transit solutions, though, people more often turn to using private vehicles. The cultural aspect of these findings stands out, says Michael Varnum, assistant professor of psychology at Arizona State University, who was not involved in the study. “That these students live in the Netherlands is interesting,” he says, because Dutch society has a solid social safety net with good infrastructure, public health care and education. “I would guess that the effects observed in the present studies might be more pronounced in societies that have greater levels of income inequality and less generous public benefits, such as the U.S.” Researchers at Leiden University, the Netherlands, addressed that question using a computer game in which students had to decide whether to use a set of virtual resources to solve a problem individually or collectively. The investigators found that these study participants had a “remarkable tendency” to waste resources for the sake of an independent solution rather than efficiently using what in the social sciences is referred to as “the commons.” The study results were published April 17 in Science Advances. What credo would you choose: “Share and share alike?” or “To each his own”? The choice doesn’t relate only to material goods or socialism versus capitalism. It can also reflect attitudes about how we solve our collective problems, such as affordable access to health care or threats from climate change. Despite the existence of shared resources in our lives—water, air, land, tax dollars—some people will lean into a go-it-alone approach, with each individual deciding for themselves what’s best. Others will look to group decision-making. What’s the tipping point for shifting from maverick to team player? To observe these effects, Gross and co-author Carsten K.W. De Dreu, who is affiliated with both Leiden University and the University of Amsterdam, split up 160 participants into 40 groups of four people each. The groups faced a simulated problem that they could solve by committing sufficient resources to it individually or as a community. Participants, each given 100 resource points to start, could put their virtual resources into either a personal pool or a shared pool. Read the whole story: Scientific American
Kolkata: A clash broke out between the supporters of Trinamool Congress Chhatra Parishad (TMCP) and Akhil Bharatiya Vidyarthi Parishad (ABVP) in Acharya Prafulla Chandra College at New Barrackpore in North 24-Parganas on Monday afternoon. Several supporters of both the organisations were injured in the clash. According to sources, on Monday ABVP supporters went to submit a deputation to the principal of the college regarding alleged corruption in connection with the admission procedure. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: MamataAfter entering the college premises, the ABVP supporters got involved in an altercation with the TMCP supporters present there. The situation was initially handled by the police personnel deputed there, but it turned worse after the ABVP supporters came out of the principal’s room after submitting the deputation. It has been alleged that the ABVP supporters had brought some outsiders, who had verbally abused the TMCP supporters. When the TMCP supporters protested, the ABVP supporters allegedly resorted to hooliganism. Also Read – Lightning kills 8, injures 16 in stateThough police personnel were deputed at the spot to handle the situation, they failed as they were outnumbered. While the clash was going on, vehicular movement on Madhyamgram-Sodepur Road was obstructed as the clash reached the road. Later, a large contingent of police arrived and brought the situation under control. The ABVP supporters alleged that the TMCP supporters had attacked first. In the clash, several persons from both the organisations were injured. Two complaints have been lodged by both organisations against each other at New Barrackpore police station regarding the clash.