Counting the twists in a helical light beam

first_img Read Full Story At a time when communication networks are scrambling for ways to transmit more data over limited bandwidth, a type of twisted light wave is gaining new attention. Called an optical vortex or vortex beam, this complex beam resembles a corkscrew, with waves that rotate as they travel.Now, applied physicists at the Harvard School of Engineering and Applied Sciences (SEAS) have created a new device that enables a conventional optical detector (which would normally only measure the light’s intensity) to pick up on that rotation.The device, described in the journal Nature Communications, has the potential to add capacity to future optical communication networks.last_img

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‘Finding Your Roots’ school curriculum receives $659,000

first_img“Finding Your Roots,” an innovative new curriculum utilizing?personalized genealogy and genetics to teach science and health to disadvantaged and minority students, based on Henry Louis Gates, Jr.’s PBS documentary series of the same name, has received two major external grants: a $355,000 grant from the Robert Wood Johnson Foundation for “Genetics and Genealogy Summer Camps for Middle School-Aged Youth,” and a $304,000 grant from the National Science Foundation for a companion program at the college level, “Personalized Genetics and Genealogy Exercises to Enhance Introductory Biology Courses.” Leading the curriculum working group are Gates, the Alphonse Fletcher University Professor and director of the Hutchins Center for African &?African American Research, and Nina Jablonski, the Evan Pugh Professor of Anthropology at Pennsylvania State University.“I conceived of this project after the first season of our PBS series aired in 2005, as I realized the impact that tracing one’s genealogy can have on the self-esteem of young people of color,” Gates explained. ?“As every amateur genealogist knows, reconstructing one’s ancestry is another way of learning about yourself. ?Far too many of our children have their passion for learning crushed in poor learning environments, both at home and at?school. ?Learning the art and science of ancestry tracing through DNA and archival records can help to regenerate that passion for learning, because it is so personal, and besides, it is fun.”“Finding Your Roots with Henry Louis Gates, Jr.,” the series that inspired the education initiative, will launch its third season on PBS on Jan. 5.last_img read more

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Taliban visit Moscow, voice hope US will honor peace deal

first_imgMOSCOW (AP) — The Taliban say after a round of talks in Moscow that they expect the United States to honor its pledge to withdraw all of its troops from Afghanistan by May. Taliban official Sher Mohammed Abbas Stanikzai, who led a delegation that met with senior Russian diplomats during two days of talks, insisted that the movement has fulfilled its end of the deal. White House and U.S. State Department officials have said that Biden’s administration plans to take a new look at the agreement, which was signed last February with Donald Trump’s White House. The Pentagon says the Taliban’s refusal to reduce violence in Afghanistan raises questions about the peace deal.last_img

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Is retiring at 75 becoming the new norm?

first_img 39SHARESShareShareSharePrintMailGooglePinterestDiggRedditStumbleuponDeliciousBufferTumblr For the vast majority of Americans, the career “finish line” is hitting a retirement number and being able to retire on their own terms. In reality, though, hitting the finish line is getting increasingly tough. Instead of the road to retirement being a straight line from Point A to B, it’s often filled with twists and turns.Unexpected expenses and other rising costs are making the trek to retirement quite the challenge, according to NerdWallet’s?2015 New Grad Retirement Report. Based on three key findings, the graduating class of 2015 faces the very real possibility that they may not retire until the age of 75. By comparison, the average retirement age today is 62.How retiring at 75 could become a realityWhat’s pushing Millenials to work until the ripe age of 75?The first big issue is the growing amount of student debt today’s graduates are dealing with. Average student debt these days is $35,051, up from $29,400 just three years prior, while starting wages are up only around $1,200 since 2012. With college becoming more of a requirement than an exception to land a job where economic advancement is possible, college tuitions have been rising at a pace that’s vastly outpacing wage growth and inflation. The result is more than $1.2 trillion in cumulative student loan debt. continue reading ?last_img read more

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PODCAST: Business continuity best practices

first_imgUntil recently, business continuity plans focused primarily on natural disasters and cyber events.That changed quickly with the onset of the coronavirus outbreak and protests over the murder of George Floyd, which require credit unions to address a host of new issues, business continuity experts say.This episode of the CUNA News Podcast features a conversation with two business continuity experts from Quantivate: Andrea Tolentino, principal solutions architect, and Linda Carlson, solutions consultantQuantivate is the technology provider for the Credit Union Compliance Management System and the provider of several modules that integrate with the platform, including a business continuity module. continue reading ? 1SHARESShareShareSharePrintMailGooglePinterestDiggRedditStumbleuponDeliciousBufferTumblrlast_img read more

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Turkey’s deadliest day in Syria worsens ties with Russia

first_imgAt stake is not only Turkey’s national security but also millions of Syrians who are likely to seek refuge in Turkey and in Europe as they escape Idlib, the last rebel stronghold in Syria. The latest attack makes it even more difficult for Turkey to prevent Syrian migrants from seeking refuge elsewhere, a senior Erdogan ally said, signaling growing frustration with European inaction.“Major escalation,” Tim Ash, a strategist at BlueBay Asset Management in London, said after Thursday’s clashes. “Turkey and Russia could be on the brink of actual war. It has been coming for a while. Where is NATO?”Crisis meetingErdogan met with his Defense Minister Hulusi Akar and top security officials from the military and intelligence agency for two hours following the clashes. Earlier in the day, Turkey said the rebels it supports retook the town of Saraqib from Syrian regime forces. After the meeting, Akar and the military’s top brass traveled to the Syrian border, NTV said. Turkish soldiers were stationed at several outposts in Idlib under a 2017 agreement with Russia and Iran to monitor a combat-free zone. Al-Assad’s forces have intensified attacks on rebel positions in the province in recent weeks, with some Turkish posts having been encircled.Erdogan has pledged to push back Syrian forces should they fail to lift their siege on Turkish posts by the end of this month and lobbied U.S and European powers to bring pressure to bear on both Syria and Russia. Turkey has asked the US to deploy Patriot missiles on the border with Syria to deter Russian air forces operating around Idlib, though Erdogan has already acknowledged that his request from the US isn’t likely to be fulfilled.Refugee exodusThursday’s attack — the single deadliest incident suffered by Turkey, which maintains NATO’s second-largest army, in the course of its campaign in Syria — raises the stakes significantly.Since the US withdrew its forces in October, war-torn Syria has become a big-power struggle between Russia and Turkey.Turkey, already the biggest host of refugees with more than 3.5 million Syrians accepted, says it can’t take any more if the Russian-backed attacks in Idlib unleash another wave. Hundreds of thousands are already on the move toward Turkey and the total number could exceed 2 million, Erdogan has said.Europe, and Germany in particular, will be watching developments with growing alarm. The prospect of Turkey waving through a flood of Syrian refugees through its borders is precisely what Chancellor Angela Merkel had hoped to avert and will further stoke anti-immigrant populist sentiment across the continent.Her open-door policy to Syria refugees back in 2015 fatally weakened her 15-year hold on power and unleashed the country’s far-right forces. Germany is now in the throes of a political battle where the pressure is building to take the country in a more conservative direction.Within hours of Thursday’s attack, spokesman of Erdogan’s ruling party Omer Celik said Turkey’s policy on Syrian refugees remains unchanged but that it’s getting increasingly difficult to “hold” them. Turkey and Russia are inching toward direct confrontation in Syria after an attack on Turkish positions in the war-torn nation killed at least 33 Turkish soldiers on Thursday.President Recep Tayyip Erdogan held a crisis meeting with his top security officials after Turkey’s military suffered its biggest single-day losses in an airstrike on their forces in Syria. Turkey will hit “all regime targets” using ground and air forces in retaliation, Erdogan’s office said after the meeting. As the toll of soldiers killed in the ambush rose, 32 others were wounded NTV reported on Friday, citing Rahmi Dogan, governor of Turkish border city Hatay.Turkey repeated calls upon Western allies for backing in the wake of Thursday’s clashes, with Foreign Minister Mevlut Cavusoglu speaking to NATO Secretary-General Jens Stoltenberg. Turkey has urged the US and EU powers to increase their support in the face of attacks on Turkish soldiers by Syrian forces operating under Russian air cover. But Erdogan’s efforts to drum up aid from his NATO partners that could strengthen his position have come to naught as he’s tried to persuade Russia’s Vladimir Putin to drop support for the regime in Damascus.center_img Topics :last_img read more

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Character home in blue-chip suburb needs a few minor tweaks

first_img109 Pearson Street, Kangaroo Point.A two-level character tin and timber home, on a 410sq m block, at Kangaroo Point has hit the market. More from newsCrowd expected as mega estate goes under the hammer7 Aug 2020Hard work, resourcefulness and $17k bring old Ipswich home back to life20 Apr 2020109 Pearson St, Kangaroo Point.The fully fenced home is being marketed by Belle Property — South Brisbane selling agent Avraam Nicolas.The property at 109 Pearson St, has VJ walls, a living room with enough space for a billiards table. The kitchen features granite bench tops. 109 Pearson St, Kangaroo Point.There are four bedrooms and two bathrooms.Mr Nicolas said: “With a fresh coat of paint and a few small improvements, this quality house can certainly represent the best of Kangaroo Point Family Living”.last_img read more

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Dominica Observes World Oceans Day with Social Media Campaign

first_img Share 28 Views ? no discussions Share Tweet LifestyleLocalNews Dominica Observes World Oceans Day with Social Media Campaign by: – June 8, 2020center_img Share Sharing is caring! The Fisheries Division of the Ministry of Blue and Green Economy, Agriculture and National Food Security joins to rest of the international community today June 8th to observe and celebrate the role of oceans in our everyday life and seeks to inspire actions globally to help protect the oceans and the sustainable use of marine resources?? This year’s theme is INNOVATION FOR A SUSTAINABLE OCEAN.Around the world countries and islands in close proximity to the ocean and whose populations rely heavily on the its resources whether through commerce and trade, tourism, food and research and development are engaged in various call to actions through lectures and panel discussions, arts, clean up campaigns and social media platforms. Globally including Dominica, 175 activities have been planned, along with 100 pledges for sustainable use of the oceans by groups and organizations and? 207 beach and underwater activities.In Dominica as we adhere to the Ministry of Health and Wellness and New Investment’s protocols we will engage in social media campaign, hashtag sustainable oceans, a panel discussion and quiz on DBS RADIO at 11am today and the circulation of a short video highlighting the work of a local female fisher and diver. The Ministry of the Blue and Green Economy Agriculture and National food Security also wants to encourage parents to direct the young children who are home and doing studies online to the UNITED NATIONS OCEAN DAY PORTAL by doing a quick search typing in the taskbar World Oceans Day for quick tips, videos and testimonials of the youth how they benefit and take care of this resourceful but fragile natural resource.last_img read more

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Brad Allen Miller, 42

first_imgBrad Allen Miller,42, Indianapolis, passed away on Wednesday, December 28, 2016 in Indianapolis.Born, August 4, 1974 in Jacksonville, Florida, he was the son of Timothy Miller and Sharon (Abbott) Woolston.Brad graduated in 1992 from Greensburg High School.He is survived by his mother, Sharon Woolston, Indianapolis; his father, Timothy Miller, Greensburg; one son, Noah Charles Fisher, Trenton, OH; one sister, Lacey (William) Martin, Indianapolis; grandparents, Esther Abbott, Greensburg, Jules Miller, Greensburg; two nieces, Tinley Martin, Indianapolis, Paisley Martin, Indianapolis; one nephew, Parker Martin, Indianapolis; one aunt, Nancy Redelman; two uncles, Mark Redelman, John Abbott; several great aunts, great uncles, and cousins.He was preceded in death by grandparents, William Abbott and Nellie Miller.Visitation will be held on Monday from 3 to 6:00 p.m. at the Porter-Oliger-Pearson Funeral Home in Greensburg.Memorials may be made to the family through the funeral home.Online condolences can be made to the family at www.popfuneralhome.comlast_img read more

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The Latest: Real Sociedad soccer players to resume training

first_img Share This StoryFacebookTwitteremailPrintLinkedinRedditThe Latest on the effects of the coronavirus outbreak on sports around the world:___Real Sociedad plans to have its players resume training individually this week. It would make it the first Spanish club to resume activities during the coronavirus pandemic. April 12, 2020 The Latest: Real Sociedad soccer players to resume training Associated Press center_img The club says players will have the option to start practicing at the team’s training center after the Spanish government decided to ease some of its lockdown measures.Non-essential workers will be allowed to return to their positions this week while observing social-distancing guidelines and other restrictions. Group activities will remain prohibited as Spain enters its fifth week of confinement because of the pandemic.It was not yet clear whether the government will allow Real Sociedad to open its training center, though, as most sports facilities are still supposed to remain closed.Real Sociedad says players have been training at home for the last month. The club prepared individual training routines for players and sent them stationary bicycles and treadmills. Spain has reported its lowest daily growth in confirmed coronavirus infections in three weeks, with the total at about 166,000. ___More AP sports: https://apnews.com/apf-sports and https://twitter.com/AP_Sports,Tampa Bay Lightning advance to face Dallas Stars in Stanley Cup finals, beating New York Islanders 2-1 in OT in Game 6last_img read more

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