10 months agoMan Utd boss Mourinho: My 2 friends in the Premier League

first_imgMan Utd boss Mourinho: My 2 friends in the Premier Leagueby Paul Vegas10 months agoSend to a friendShare the loveManchester United boss Jose Mourinho says two of his fellow Portuguese are the Premier League managers who are closest to him.In an interview with Soccer AM, he revealed who his best pal is among the current crop of Premier League bosses. “Nuno (Espirito Santo) was my player so I have a relationship with him from before,” he said.”Marco (Silva at Everton) I have known for years and he’s a good guy too.”Former goalkeeper Nuno was at Porto for years in two separate spells, with Mourinho his boss from 2002-04.When asked if he ever had a night on the town with Nuno, Mourinho was a little more coy.”In spite of the fact that we are both now managers I think we have a thing that I was your manager and you were my player,” he added.”That’s nice for me. There is always that little thing in the relationship.” About the authorPaul VegasShare the loveHave your saylast_img read more

Plunging Calgary office values linked to high oil and gas unemployment rate

first_imgThe Canadian Press CALGARY — A commercial realtor says a 32 per cent decline in Calgary’s downtown office building property assessment this year will likely translate into lower costs for some tenants, but he doesn’t expect much improvement in the vacancy rate.Greg Kwong, Alberta managing director for realtor CBRE, says companies will have to start replacing the thousands of energy industry workers laid off following the oil price crash of late 2014 before the city’s downtown vacancy rate will recover from its year-end level of 26.4 per cent.Calgary Chamber of Commerce spokesman Mark Cooper says lower values in the downtown means property taxes are likely going to have to rise for businesses throughout the city to make up the difference.He says investor confidence needed for job creation in Calgary is low thanks to Alberta oil prices which failed to keep up with last year’s global oil price rally due to discounts blamed on a lack of export pipeline capacity.The city says the total assessed value of downtown office properties fell by $5 billion over the past year and now makes up only 18 per cent of the total non-residential base, down from about 32 per cent in 2015.It says the crescent-shaped Bow Tower, home to oil companies Cenovus Energy Inc. and Encana Corp., lost 18.6 per cent of its value in 2018, falling to about $779 million. In 2015, it was valued at $1.43 billion.Residential property assessments in Calgary are down one per cent compared with the previous year and retail assessments were little changed.last_img read more

BC Chamber of Commerce reports on the Budget 2019

first_imgThe BCCC shares the areas the Budget did not address issues identified by businesses;A commitment to a comprehensive review of the taxation system to make it fair and less cumbersome for businesses.A broad-based commitment to reduce the regulatory burden on businesses. VANCOUVER, B.C. – The BC Chamber of Commerce (BCCC) reports the Budget 2019 leaves business concerns to the side by falling short on addressing fundamental issues that affect B.C. businesses.The BCCC share there were some small wins in the budget, yet the budget failed to address key issues such as global tax competitiveness, reduced business confidence, and a slumping investment in BC businesses.“Our 2018 Collective Perspective Survey showed that confidence in the BC economy is declining in 50% of BC businesses.  “Current tax rates are hurting our ability to compete globally,” says Val Litwin, CEO of the BC Chamber of Commerce. This budget didn’t adequately address productivity or competitiveness in a way that will grow our economy, create meaningful employment, and generate the revenues we need to sustain a healthy prosperous province and country,” Litwin says. The BCCC shares the areas the Budget did deliver in areas significant to BC Businesses;Multiple funding mechanisms to ensure that high-speed internet access is Canada-wide by 2030, with $1.7 billion specifically earmarked for rural, remote and Northern communities.$631.2 million to expand Work-Integrated-Learning (WIL) programs, with a view to create up to 20,000 new WIL opportunities outside of STEM-related fields.$150 million to create new partnerships between government and industry to create up to 20,000 new WIL opportunities.Multiple funding mechanisms to enhance apprentice programs in skilled trades.$3 billion in tax incentives through the SR&ED tax incentive to support business research and development (R&D) in Canada. The program provides a 35-per-cent refundable tax credit to eligible small and medium-sized businesses.center_img A renewed commitment to eliminating inter-provincial trade barriers and mobility.Support for SMEs to find new export opportunities and expand Canada’s ability to diversify its trade.A clear strategy to move the Trans Mountain pipeline forward, given the significant investment made by Canadian taxpayers.Budget 2019 proposals the BCCC share, require more consideration and details before determining the impact on businesses;The Budget identified funding programs to develop “regulatory roadmaps” to address stakeholder issues and irritants. While these efforts align with the BC Chamber’s interest in reducing the regulatory burden on Canadian businesses, the Budget proposals, unfortunately, maintain a lacklustre, made-by-government solution to a made-by-government problem.The new Canadian Training Credit and EI Training Support Benefits to support the up-skilling and re-skilling of Canadians align with the BC Chamber’s recommendations. However, the potential impact on small businesses remains unclear. The BC Chamber needs more information and wants to see a commitment that business is consulted.The Budget offered little new information regarding the national pharmacare plan. The BC Chamber supports focusing on the 10% of Canadians that are uninsured or underinsured and also supports the value of bulk drug purchasing to help British Columbians manage costs.The BC Chamber supports the Global Talent Stream program but would like to see a commitment from the program to bring skilled immigrants to rural communities, where they are often most needed.The BC Chamber network will continue to engage with Federal representatives to prioritize restoring a competitive tax structure, reducing regulatory burdens, and increasing access to skilled labour as critical priorities to maintain prosperity for all British Columbians.last_img read more

Arrests made following attempted ATM thefts

first_imgA short time later the truck was located in Taylor, B.C.The suspects were seen fleeing on foot from the vehicle and arrested. Police Dog Services assisted in locating the passenger hiding in the grass, near the truck.Constable Chad Neustaeter, of the Fort St. John RCMP, says he was glad that nobody was injured during this incident.Douglas Goodings is facing charges of break and enter, flight from police, assaulting a Peace Officer with a weapon, and two counts of failure to comply with recognizance.  The male passenger was arrested on an outstanding warrant.Goodings is also facing additional charges for another attempted ATM theft which occurred on April 19 at a gas station at the west side of Fort St. John.Goodings remains in custody to attend court at a later date. FORT ST. JOHN, B.C. – On Sunday, April 20, before 5:00 a.m., Fort St. John RCMP received a report of a suspicious pickup truck with a tow rope hanging over the tailgate leaving a gas station on 96A Street.Police attended the scene and observed a smashed window and a broken ATM that was ripped from the wall.Officers made patrols and located the vehicle which then collided with a police vehicle in an effort to flee. The investigation is continuing and additional charges may follow.last_img read more

Program expansion provides respite funding for special needs children

first_imgSURREY, B.C. – With the expansion of a program, more than 1,300 additional families with children who have special needs will benefit from respite services by qualified caregivers.As of March 31, 2018, approximately 3,900 families were receiving respite services. This program expansion will provide for 1,300 additional families and provide an increase in the base funding amount each family can receive.“We’ve heard how incredibly important respite care is for families,” said Katrine Conroy, Minister of Children and Family Development. “Parents can get so caught up caring for a loved one that they forget to take time for themselves. They often don’t have the luxury of asking a friend, neighbour or relative to step in for them. Respite offers them a chance to recharge and the peace of mind that comes from having a skilled professional they can count on with the training to meet their child’s unique care needs.” Respite funding allows eligible families to purchase services from a qualified person who will care for the child while the parents attend to other family priorities. Services are provided in the child’s home, the respite caregiver’s home or within the community. Eligibility is not based on a specific diagnosis. Children may be eligible for the program if they are assessed as dependent in at least three of four areas of daily living (washing, bathroom assistance, eating and dressing), or have a palliative condition.According to the government, once families become eligible for respite funding, they are also able to access a range of other programs, including access to a child and youth care worker, behaviour supports, parenting skills training, counselling, housekeeping and life-skills programs for children.Government is developing a new plan to better support children and youth with special needs and their families. It will guide how the ministry invests in and delivers services for children and youth with special needs, and will roll out in spring 2020.The $6.3-million boost to the Province’s respite program was announced in Budget 2019, and changes began to come into effect April 1, 2019. Five million dollars is being used to provide respite services for families who had previously been on the waiting list. The remaining $1.3 million is increasing the base annual funding amount each family can receive from $2,800 to $3,080, marking the first increase in respite funding since 1989.For more information on services available; CLICK HERElast_img read more

13 killed in South Africa church collapse

first_imgJohannesburg: At least 13 people have died and many injured in South Africa after a wall collapsed at a Pentecostal church at the start of an Easter service, authorities said. The incident happened on Thursday night in the coastal province of KwaZulu-Natal and emergency medical services spokesperson Robert McKenzie linked the tragedy to heavy rainfall in the area, South Africa’s online news publication News24 reported. Authorities said 29 people were rushed to hospital after the collapse of the wall at the front of the Pentecostal Holiness Church and six of them were seriously injured. Provincial police spokesperson Colonel Thembeka Mbele said the area experienced a storm and heavy winds which are believed to have resulted in the incident. People were sleeping in the church when the brick wall collapsed, she added. Following the incident, a special prayer service was held in front of the church on Friday, according to local eNCA TV station.last_img read more

Spalletti bemoans penalty decision

first_imgInter Milan coach Luciano Spalletti has blamed a “clear as day” penalty decision after they lost 1-0 at home to Parma.There was also controversy in the match, as Dimarco appeared to make contact with the ball his elbow, but VAR officials refused to award Inter Milan a penalty. A decision that has drawn the ire of Spalletti.“Now I see the video, that really did look to be handball. I don’t know how VAR works, but he really did deflect the ball away from the goal with his arm. It was outstretched, that ball could’ve gone anywhere. That was clear as day.” Spalletti told Sky Sports Italia.“It’s disappointing that Parma came out to obstruct and time-waste, we even saw Luigi Sepe throw an extra ball on to the pitch to stop us taking a quick corner.”Spalletti also questioned his side’s attitude during the game.Romelu Lukaku, Serie A, Inter MilanCapello calls Lukaku “a modern striker” Manuel R. Medina – September 14, 2019 The former Italian manager believes Romelu Lukaku is perfectly suited for Antonio Conte’s Internazionale Milan in the Serie A.“I don’t understand this sluggish approach in some situations compared to others. Nothing is owed to us, no matter what our names are.“That attitude can at times come from the desire to do something more, it doesn’t work, so we get disorganised and the opposition takes advantage.“We messed up too many crosses, too many passes for the quality at our disposal. We introduced Matteo Politano for the second half to add fresh legs, but he looked weighed down by the pressure and could barely run. It’s not physical form or fitness training, it’s the desperate attempt to do more and it leads to fractures within the team’s organisation.“Now we must do well to analyse these games in the right way and realise we have the capability to do far more than this. If the players perform below their capabilities, that is the responsibility of the Coach.”last_img read more

Carrick believes Mourinho nurtures young players

first_imgThe Manchester United long-standing tradition of bringing through young players has continued with the Portuguese managerEnglish Premier League giants Manchester United have always been seen as one of the best clubs for a young player to develop.And former Red Devils midfielder Michael Carrick believes one of the positive sides of Mourinho’s tenure at United is his development of young talent.“He does get the history,” said Carrick to Sky Sports.“For the manager to put him [Rashford] in and play him… and Scott [McTominay] last year… and give them games, big games as well.”Roberto Firmino, LiverpoolVirgil van Dijk praises Roberto Firmino after Liverpool’s win Andrew Smyth – September 14, 2019 Virgil van Dijk hailed team-mate Roberto Firmino after coming off the bench to inspire Liverpool to a 3-1 comeback win against Newcastle United.“The manager has to take a lot of credit for that. That’s the constant challenge though, isn’t it? That’s what everyone wants to see, that next one,” he added.“They say it’s getting harder. But that’s a challenge for us as a club and for English football – you might not get tens and twenties, you might get five or six players – but it’s got to keep happening.”“At the end of the day, the academies are there to produce players and to give kids a chance of getting in first teams. Especially at United; you can’t ignore the history and traditions,” he continued.“When people ask me: ‘What’s my role now [at the club]?’ That’s a big part of the club. You can’t just neglect the history of the club and what it stands for. And bringing players through is a huge part of that. It’s always been that one, two, three, four – more players in some eras.”last_img read more

Valverde hails unbelievable Messi after 400th La Liga goal

first_imgBarcelona manager Ernesto Valverde believes Lionel Messi’s incredible statistics speak for themselves after he scored his 400th La Liga goalIn just 435 league games, Messi registered his 400th goal as Barcelona cruised to a comfortable 3-0 win over SD Eibar on Sunday with Luis Suarez netting the other two goals.“I think the figures speak for themselves,” Valverde told the club website.“We don’t know if anyone will ever get close to those statistics but he is unbelievable.”The victory at Camp Nou enabled Barcelona to maintain their lead in La Liga to five points from second-place Atletico Madrid after 19 games.FC Barcelona, Valencia CFMatch Preview: Barcelona vs Valencia Boro Tanchev – September 14, 2019 Is derby time in La Liga, as Barcelona welcomes Valencia to the Camp Nou Stadium tonight at 21:00 (CET).“We have finished the first half of the season,” continued Valverde.“We wanted to maintain the advantage we had over the teams that are chasing us and we have done that.“The game was a tough one, like all the games against Eibar. They always put you under pressure high up the field.“At the end of the day we were able to get around that and we are happy because we have reached the halfway point of the league season top of the table, after having some tricky moments so far.”The Catalan giants will next face Levante in the second leg of their last-16 Copa del Rey tie on Thursday, where they hope to overturn their 2-1 deficit at home.last_img read more

Going for Gold Bahamas MillerUibo tries for history

first_imgFacebook Twitter Google+LinkedInPinterestWhatsApp Related Items:#IAAFWorldChampionships2017, #magneticmedianews, #ShaunaeMillerUibotriesforgold Facebook Twitter Google+LinkedInPinterestWhatsAppUnited Kingdom, August 9, 2017 – London – Today, gold medalist Shaunae Miller-Uibo looks to add another gold to her collection as she is set to run in the 400m finals at the IAAF World Championships in London.#MagneticMediaNews#ShaunaeMillerUibotriesforgold#IAAFWorldChampionships2017 Recommended for you Disappointing 200m for TCIs Otuonyelast_img

PM Minnis Presented National Athletic Gear from the BAAAs

first_imgFacebook Twitter Google+LinkedInPinterestWhatsApp Facebook Twitter Google+LinkedInPinterestWhatsApp#Bahamas, September 29, 2017 – Nassau – The BAAAs presented Prime Minister Dr. the Hon. Hubert Minnis with a complete set of national athletic gear at the Office of the Prime Minister in a courtesy call on September 27, 2017.The Prime Minister is pictured chatting at the presentation with BAAA President Rosamunde Carey, centre, and Bahamian sprint Olympian Pauline Davis-Thompson.(Photo/Yontalay Bowe, OPM Media Services) Related Items:last_img

Future plc App Sales Pass 8 Million

first_imgIn its interim statement for its fiscal year ending September 30, Future plc is reporting continued growth in its app business. In the last year, since Apple launched Newsstand, the company has generated about $8 million in app sales, which is up from $5 million at its fiscal half-year.In July 2011, the company announced it was moving to a “primarily digital business,” and midway through its fiscal 2012, Future said digital advertising accounted for 44 percent of revenue—$15 million at the half, with a third of that in app sales. The company’s websites are reporting traffic gains as well, with visits up 50 percent, totaling 45 million uniques per month. Also encouraging for the company is improved performance of its struggling U.S. division. “In the U.S. we continue to make strong progress and are close to returning to profitability,” says the company in its interim statement. Early this year, Future sold its music titles to NewBay Media for $3 million as part of the company’s “recovery plan” for its U.S. group.More on this topic Future plc iPad App Sales Hit $5 Million Since Newsstand Debut Future PLC’s Digital Play Digital in the Black for First Time at Future Digital Revenues Rise, Print Continues to Fall for Future plc Future PLC Aims to Trim More Print Costs Future US Promotes Considine to PresidentJust In Meredith Corp. Makes Digital-Side Promotions | People on the Move TIME Names New Sales, Marketing Leads | People on the Move Four More Execs Depart SourceMedia in Latest Restructuring This Just In: Magazines Are Not TV Networks Editor & Publisher Magazine Sold to Digital Media Consultant Bonnier Corp. Terminates Editor-in-Chief for Ethics BreachPowered bylast_img read more

COMING TO THE SHRINERS Country Western Night On November 30

first_imgWILMINGTON, MA — The Aleppo Shriners are holding its annual Country Western Night, featuring The Goat Roper Band and DJ Rich & Kathleen Crocker, on Friday, November 30, 2018 in the Fez Room at the Shriners Auditorium (99 Fordham Road). Doors open at 6:30pm. Dance lessons begin at 8pm. Tickets cost $10. Kids 12 and under are FREE. All proceeds will benefit the Shriners Transportation Fund.Like Wilmington Apple on Facebook. Follow Wilmington Apple on Twitter. Follow Wilmington Apple on Instagram. Subscribe to Wilmington Apple’s daily email newsletter HERE. Got a comment, question, photo, press release, or news tip? Email wilmingtonapple@gmail.com.Share this:TwitterFacebookLike this:Like Loading… RelatedCOMING TO THE SHRINERS: Country Western Night On August 6In “Community”The Wilmington Insider For November 30, 2018In “5 Things To Do Today”SAVE THE DATE: Feztival of Trees Coming To Shriners Auditorium On November 22-24In “Community”last_img read more

WASHINGTON TO WILMINGTON The Latest News From Moulton Markey  Warren

first_imgWILMINGTON, MA — Below is the latest news from the offices of Congressman Seth Moulton, Senator Ed Markey, and Senator Elizabeth Warren.Congressman Seth MoultonRecent Press Releases and Statements from Congressman Moulton’s Office:NoneSenator Ed MarkeyRecent Press Releases and Statements from Senator Markey’s Office:Senator Markey Statement on Passing of President George H.W. BushPresident Signs Sens. Cruz, Markey’s Bipartisan National Timing Resilience and Security Act Into LawSenator Markey Statement on EPA Rule Roll-back For New Coal PlantsSenator Elizabeth WarrenRecent Press Releases and Statements from Senator Warren’s Office:Senators Warren & Cotton Introduce National POW/MIA Flag ActSenators Seek Expanded Investigation of Waste and Abuse in FEMA Contracts for Puerto Rico Hurricane RecoverySens. Warren, Markey & Rep. Lynch Introduce Concurrent Resolution To Commemorate The 75th Anniversary of the All-American Girls Professional Baseball LeagueLike Wilmington Apple on Facebook. Follow Wilmington Apple on Twitter. Follow Wilmington Apple on Instagram. Subscribe to Wilmington Apple’s daily email newsletter HERE. Got a comment, question, photo, press release, or news tip? Email wilmingtonapple@gmail.com.Thank You To Our Sponsor:Share this:TwitterFacebookLike this:Like Loading… RelatedWASHINGTON TO WILMINGTON: The Latest From Moulton, Markey & WarrenIn “Government”WASHINGTON TO WILMINGTON: The Latest News From Moulton, Markey & WarrenIn “Government”WASHINGTON TO WILMINGTON: The Latest News From Moulton, Markey & WarrenIn “Government”last_img read more

Googles new US data centers will run on 16 million solar panels

first_img Share your voice Tags 5 Comments Google Google plans to purchase 100 percent renewable energy for its data centers and offices in the US and around the world.  Google Google will amp up its expansion in the southeastern US with millions of solar panels. Google wants the electricity consumed by its new data centers in Yum Yum, Tennessee, and Hollywood, Alabama, to be “matched with 100 percent renewable energy from day one.” To meet this goal, the search giant said Wednesday it’s struck a multi-year deal with the Tennessee Valley Authority to purchase output from several new solar farms, which will total 413 megawatts of power from 1.6 million solar panels. The two largest solar farms will produce roughly 150 megawatts each, according to a Google blog post. They’ll be among the largest renewable energy projects in the Tennessee Valley region, Google said, and the biggest solar farms ever built for the search giant.Google said in 2016 that the company planned to source carbon-free electricity on a 24/7 basis for each data center. The search giant tried to reach 100 percent renewable energy purchasing goal in 2017. So far, Google has sourced carbon-free energy for its data centers in Finland, Netherlands, Taiwan, North Carolina and Iowa, according to Google’s October 2018 report. Tech Enabled: CNET chronicles tech’s role in providing new kinds of accessibility.CNET Magazine: Check out a sample of the stories in CNET’s newsstand edition. Tech Industry Sci-Tech Internet Serviceslast_img read more

Physicists propose mechanism that explains the origins of both dark matter and

first_imgThis 3D map shows the large-scale distribution of dark matter, reconstructed from measurements of weak gravitational lensing with the Hubble Space Telescope. The field of view covers about nine times the size of the full moon. Image credit: NASA/ESA/Richard Massey. Citation: Physicists propose mechanism that explains the origins of both dark matter and ‘normal’ matter (2010, December 10) retrieved 18 August 2019 from https://phys.org/news/2010-12-physicists-mechanism-dark.html Copyright 2010 PhysOrg.com. All rights reserved. This material may not be published, broadcast, rewritten or redistributed in whole or part without the express written permission of PhysOrg.com. (PhysOrg.com) — Through precise cosmological measurements, scientists know that about 4.6% of the energy of the Universe is made of baryonic matter (normal atoms), about 23% is made of dark matter, and the remaining 72% or so is dark energy. Scientists also know that almost all the baryonic matter in the observable Universe is matter (with a positive baryon charge) rather than antimatter (with a negative baryon charge). But exactly why this matter and energy came to be this way is still an open question. In a recent study, physicists have proposed a new mechanism that can generate both the baryon asymmetry and the dark matter density of the Universe simultaneously. UBC physicists make atoms and dark matter add up Explore further The scientists, Hooman Davoudiasl from Brookhaven National Laboratory in Upton, New York; David Morrissey and Sean Tulin from TRIUMF in Vancouver, British Columbia; and Kris Sigurdson from the University of British Columbia, also in Vancouver, have published their new proposal in a recent issue of Physical Review Letters. They’ve dubbed the new mechanism “hylogenesis” from the Greek words “hyle,” meaning “primordial matter,” and “genesis,” meaning “origin.” “There are two problems in theoretical physics we are trying to address at once,” Sigurdson said. “The baryon asymmetry (why do we have atoms but not antiatoms in the Universe?) has really been a problem since Paul Dirac proposed antimatter in 1928 and it was discovered in 1932. And what is the dark matter? Hints of dark matter have been around since Fritz Zwicky discovered missing mass in the Coma Cluster in 1933, but its identity is still unknown. This mechanism links the formation of atoms and dark matter and helps resolve the baryon asymmetry mystery, as the total dark plus visible baryon balance of the Universe is restored.”In this matter-formation scenario, a new particle X and its antiparticle X-bar (of equal and opposite charge) are produced in the early Universe. X and X-bar are capable of coupling to quarks (the basic components of baryonic matter, e.g., protons and neutrons) in the visible sector as well as particles in a “hidden” sector (so-called because the particles in it interact only feebly with the visible sector). In this scenario X and X-bar would have been produced when the Universe heated up after inflation, in the first moments after at the start of the big bang.Later, X and X-bar would decay, partly into visible baryons (specifically, a neutron made up of one up quark and two down quarks) and partly into hidden baryons. As the scientists explain, X decays to neutrons more often than X-bar decays to antineutrons. By the same amount, X-bar decays to hidden antiparticles more than X decays to hidden particles. In this scenario, the quarks would be the baryonic matter that makes up almost everything we see, and the hidden antibaryons would be what we know as dark matter. Through this yin-yang decay pattern, the positive baryon number of the visible matter is in balance with the negative baryon number of the dark matter. “The energy densities of visible and dark matter are really close to each other (differing by a factor of five),” Tulin said. “In many scenarios, the processes that generate visible and dark matter are unrelated, occurring during widely separated epochs in the early universe through completely different physics. So, this factor of five seems like either a really big coincidence, or it could be a clue that both kinds of matter had a common origin. I think this is the main reason to take seriously these unified models of visible and dark matter genesis.”The physicists predict that this matter-formation mechanism could provide an entirely new way to look for dark matter, since it would leave a signature that could be experimentally detected. As they explain, once in a while a dark matter antiparticle might collide with and annihilate an ordinary atomic particle, releasing a burst of energy. Although this is very rare, there is a chance that experiments on Earth that look for the spontaneous decay of protons could detect dark matter.“We plan to investigate, in more detail, the prospects for dark matter detection in nucleon decay experiments, as this constitutes a distinct signature of our proposal and can open up a new front in the experimental search for dark matter,” Davoudiasl said. “Other potential signals of hylogenesis can appear in astrophysical observations and perhaps particle accelerator data, and we intend to consider these possibilities in our future work as well.” More information: Hooman Davoudiasl, et al. “Unified Origin for Baryonic Visible Matter and Antibaryonic Dark Matter.” Physical Review Letters 105, 211304 (2010). DOI: 10.1103/PhysRevLett.105.211304 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.last_img read more

There and back again Extending optical storage lifetime by retrieving photon echoes

first_img © 2014 Phys.org , Physical Review Letters “For this reason, research on quantum optical memories attracted a lot of attention,” Akimov told Phys.org. “Current investigations of photon echoes have concentrated primarily on atomic vapors and rare earth crystals with long storage times, which are crucial for implementation of robust light-matter interfaces. However,” he noted, “light-matter coupling is weaker in these systems, so operation speed is not as fast as it could be in semiconductors. For example,” he illustrated, “efficient optical excitation in atomic systems is possible with optical pulses longer than one nanosecond, which slow down the operation speed by three orders of magnitude as compared to our protocol – and for rare earth crystals the pulse duration should be even longer.”In contrast to classical storage, quantum memory forbids measurement of the optical field during saving and retrieving processes. “In other words,” Akimov said, “storage of non-classical quantum light – such as squeezed light or a single photon – should occur without knowing which optical fields have been stored and retrieved, because otherwise the quantum state would be irreversibly destroyed during the measurement procedure. However, our protocol allows quantum storage since transfer between optical excitation and spin excitation does not require state measurement.” In other words, the new protocol transfers a quantum superposition between optically coupled states (optical excitation) and the other pair of states coupled by a magnetic field (spin excitation). In this process no measurement takes place – just the transformation between different excitations.Regarding the quantum well, the researchers specifically concentrated on an n-doped CdTe/(Cd,Mg)Te quantum well where storage time increased from picoseconds to tens of nanoseconds. The structures were grown by Prof. Grzegorz Karczewski and Prof. Tomasz Wojtowiczin the Institute of Physics, Polish Academy of Sciences in Warsaw using molecular beam epitaxy. (CdTe/(Cd,Mg)Te is a cadmium telluride compound in which some of the cadmium is replaced by magnesium.) “The cadmium telluride semiconductor quantum well structure is a model proof-of-principle system for extending the photon echo delay,” Akimov told Phys.org. “In such two-dimensional structures, the carriers are confined in one direction; this results in well-defined spin-level system and clean selection rules for optical transitions. Secondly, n-type doping of barriers with donors provides excess electrons in the quantum well which, again, are responsible for long-lived spin excitations.”That said, while using cadmium telluride quantum wells enabled very clean experiments on the ensemble of trions to be performed because their optical transitions are well isolated spectrally, the researchers had to maintain weak optical pulse intensity to prevent interactions between weakly localized trions. “In order to increase the efficiency and to achieve longer delays for photon echoes it is necessary to try different type of semiconductor nanostructures which can be also based on other compounds.,’ Akimov explained. “One of such candidates is the ensemble of quantum dots where the electrons and holes are localized much more strongly in all three dimensions. This is in contrast to quantum wells where strong confinement is present only along one direction.”Finally, Akimov noted that in semiconductors there are two types of fundamental optical excitations: excitons (electron-hole pairs bound by Coulomb interactions) and trions – charged excitons consisting of an exciton bound with an excess electron or hole. “A trion is a three-particle complex, and after its decay there’s always an excess carrier left,” he explained. “In our case, we deal with excess electrons which possess spin 1/2. Therefore, in contrast to excitons, it is possible to save information about optical excitation in the spin of the excess electrons left after trion recombination. This transformation is only possible when an external magnetic field is applied, since it allows us to mix the electronic states in the proper way.” The most salient advantage of quantum well structures is that exciton and trion resonances are spectrally well separated – meaning that picosecond laser pulses let the researchers address only the optical transition from excess electron to trion.For all of these seemingly daunting challenges, the researchers’ key insight was to study photon echoes emitted by trions in semiconductor nanostructures subject to an external magnetic field – and by then using a transient four-wave mixing (FWM) technique to measure magnetic-field-induced long-term photon echoes, they were able to show that photon echoes can be retrieved from excess electron spin ensembles. (Transient four-wave mixing belongs to time-resolved coherent spectroscopy based on non-linear optics, whereby interactions between two or three optical pulses in medium produce fourth optical field in the signal) “We used ultrashort optical pulses with duration of about one picosecond,” Akimov explained, “because efficient optical excitation in semiconductors is possible on the order of 0.1-1ps.” In addition, he said, the experiments had to be performed at extremely low temperatures – about two degrees above absolute zero – in order to keep the system robust against interactions with phonons (collective excitations, similar to quasiparticles, in a periodic, elastic arrangement of atoms or molecules in condensed matter, such as solids and some liquids), as well as to suppress other relaxation mechanisms which could lead to irreversible dephasing of optical and spin excitations and thereby loss of coherence. “From an experimental point of view,” he added, “our primary challenge was combining four-wave mixing with ultrashort picosecond pulses and external magnetic fields at low temperatures.”The current study demonstrates that photon echoes can be retrieved from the spin system on the timescale of 10-100 ns. “However,” Akimov said, “this time delay is still too short for practical applications. In order to solve this problem we need to extend the decay time of spin excitations.” There are two possible reasons for decay of spin excitations: dephasing of spins and irreversible spin relaxation through decoherence – that is, due to interaction with the environment. “The first point can be addressed by means of spin resonance techniques using dynamic decoupling,” he explained, “which is an approach largely the same as photon echo but based on periodic excitation of the spin ensemble with microwave pulses which lead to spin echoes. In that way it will be possible to keep the spin ensemble of excess electrons free of dephasing, and timescales up to tens or even hundreds of microseconds may be achieved. However, irreversible spin relaxation is more difficult to solve – but there are several attempts to reduce hyperfine interaction between nuclear and electron spins. One of the solutions would be to use compounds with isotopes carrying zero nuclear spin. In this case storage times in the milliseconds can be available.”In fact, Akimov added that the scientists plan to investigate extending the timescale of photon echoes further into the microsecond and millisecond range. “We’ll test other nanostructures, such as quantum dots with strong trion localization, and will search for new materials with suppressed spin excitation decay. In addition,” he said, “we’ll use spin resonance techniques in order to eliminate spin dephasing in the ensemble of excess electrons.”Akimov also mentioned applications beyond optical memory. “While most applications are related to optical memories where the optical information should be saved and released on demand,” he said, “there’s another fundamental aspect: Our studies combine optical and spin phenomena, and in this sense it’s very interesting to explore our approach for monitoring the time evolution of combined optical and spin excitations.”A unique feature of photon echo experiments is the dephasing which already occurs at the initial stage directly after excitation with the first pulse, where the sequence of two linearly polarized pulses create comprehensive spin distribution for excess electrons without net spin polarization. While each of the electrons has a certain well-defined spin, the ensemble spin polarization, or average spin, is zero – and the information about the optical pulses, such as polarization and interpulse delay, is encoded in the spins of excess electrons. “This differs from conventional techniques,” Akimov pointed out. “For example, in well-established pump-probe experiments the non-zero spin polarization in the system is first induced by a circularly polarized pump pulse, and then the evolution of the spin in time is probed.” The scientists therefore believe that their approach based on photon echoes in a magnetic field constitutes an interesting platform for fundamental spin studies.Along these exploratory lines, Phys.org asked Akimov if, given that storage times of seconds or longer might be possible by further exploiting the hyperfine interaction between electrons and nuclei in quantum dots, quantum wells and self-assembling quantum dots might at some point be combined in a single quantum system that emulates human short- and long-term memory. “I think we are still far from that,” he replied. “In order to achieve this goal it would be necessary to establish a net of such quantum dot ensembles, analogous to cells, which would communicate between each other.” He added that while he does not exclude such possibility, he emphasizes that such a quantum system would very complex and would contain and integrate far more than a simple set of quantum nanostructures. “Several challenging issues such as communication between different ensembles have to be addressed, and for that it is necessary to accomplish directed and selective coupling of light at the nanoscale in and out of the cells. Accordingly, realization of such a network would need integration of photonic crystals or waveguide layers which can be based on semiconductors. Nevertheless,” he concluded, “this is a special area of research which deserves a lot of attention.” 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. Scheme of photon echo experiment and optical properties of investigated structure. (A) The CdTe/(Cd,Mg)Te quantum well (QW) is optically excited with a sequence of three laser pulses with variable delays t12and t23 relative to each other. The resulting four-wave mixing transients |EFWM(t)| are detected in 2k2-k1 direction using heterodyne detection. All measurements are performed at temperature of 2 K. (B) Top: schematic presentation of exciton (X) and trion (T-) complexes in QW. The QW potential of conduction (CB) and valence (VB) bands leads to spatial trapping of electrons and holes. Bottom: Photoluminescence (PL) spectrum (solid line) measured for above-barrier excitation with photon energy 2.33 eV, demonstrating X and T- emission. The laser spectrum (dashed line) used in photon echo experiment is tuned to the low energy flank of T- emission line. (C) Four-wave mixing transients for t12 = 23 ps and t23 = 39 ps. Spontaneous (PE) and stimulated (SPE) photon echo signals appear at tref =2t12 and tref =2t12 +t23, respectively. (D) Decay of PE and SPE peak amplitudes. From exponential fits (dashed lines) we evaluate T2=72 ps and T1 = 45 ps. Credit: Ilya A. Akimov. Journal information: Nature Photonics Explore further Schematic presentation of the main mechanisms responsible for magnetic-field-induced stimulated photon echoes (SPE). The whole process comprises three steps: 1. pulse 1 creates the optical excitation (initialization—conversion of the optical field into a material excitation); 2. pulse 2 performs a transformation of the optical excitation into the spin system (storage); 3. pulse 3 stimulates the photon echo (readout). Optical pulses are circularly polarized. (A) Transfer of optical coherence into electron spin coherence (Sx and Sy components). The efficiency is maximum for t12=p/wL. (B) Creation of spectral spin fringes for electrons and trions (Sz and Jz components). This mechanism is most efficient for t12=2p/wL. The spectral spin gratings for electrons and trions are shown in (C) at the moment of creation by the second pulse (t=t12=2p/wL) and in (D) after trion recombination and before arrival of pulse 3 (t>>t12+T1). Credit: Ilya A. Akimov.center_img More information: Access to long-term optical memories using photon echoes retrieved from semiconductor spins, Nature Photonics (Published online 28 September 2014), doi:10.1038/nphoton.2014.219Related:1Magnetic-Field Control of Photon Echo from the Electron-Trion System in a CdTe Quantum Well: Shuffling Coherence between Optically Accessible and Inaccessible States, Physical Review Letters 109, 157403 (2 October 2012), doi:10.1103/PhysRevLett.109.157403 In their study, the researchers found that picosecond optical pulses and an applied weak transverse magnetic field led to the transfer of a short-lived optical excitation into a long-lived electron spin state. In turn, this induced stimulated photon echoes with high bandwidth on submicrosecond timescales that exceeded optical excitation lifetime by a factor exceeding three orders of magnitude. Moreover, the scientists state that the ability to address all three spin components –parallel and perpendicular to applied magnetic field – as well as the energy level structure of localized trions being identical in quantum wells and self-assembled quantum dots make their approach “highly appealing” for future memory device applications and may lead to the fabrication of semiconductor nanostructure-based optical memories.Dr. Ilya Akimov discussed the paper that he, Doctoral Student Lukas Langer and their co-authors from Dortmund, St-Petersburg and Warsaw published in Nature Photonics, starting with the main challenges in devising a new experimental approach to stimulated photon echoes by transferring the information contained in the optical field into a spin system, where it is decoupled from the optical vacuum field. “A photon echo can be considered as a flash of light initiated in a medium after a sequence of two or more optical pulses,” Akimov told Phys.org. “Properties of the photon echo pulse – that is, intensity, optical coherence and phase – are identical to the properties of the initial pulse; therefore this phenomenon can be used to store information in all-optical systems.” Photon echoes because they occur in structures which rapidly dephase optical excitation in response to the first pulse, but with the second pulse reverse the dephasing process. Akimov pointed out that the timescale at which photon echoes can be observed is determined by the period during which optical excitation coherence is preserved. “This is why photon echoes are coherent,” he explained. “If scattering processes are suppressed, optical excitation coherence is limited by its lifetime as governed by intrinsic properties of the materials. Nevertheless there is a general rule that the more efficient light-matter interaction, the faster decay into the ground state will be observed – for example, faster spontaneous emission due to the optical vacuum field. Here we have a dilemma,” he noted. “On the one hand, we’d like to excite the medium quickly with the shortest possible pulse, which requires strong light-matter interaction. However, this limits the timescale at which the photon echoes can be observed.” The opposite is also true: To observe long-lived photon echoes, materials with weak light-matter coupling are needed – and although semiconductor systems belong to materials with strong light-matter interaction, it’s possible to extend photon echo decay if the optical excitation is transferred into the spin excitation and then recovered back to the optical excitation – that is precisely what Akimov and co-authors have accomplished. Quantum holograms as atomic scale memory keepsake “In order to achieve this goal,” he said, “we’ve used semiconductor quantum wells with excess electrons.” (A quantum well is a thin layer which can confine quasiparticles – emergent phenomena that occur when a microscopically complicated system, such as a solid, behaves as if it contains weakly interacting particles in free space – in the dimension perpendicular to the layer surface.) What’s key is that the spin excitation coherence time of such electrons decays three orders of magnitude more slowly than the lifetime of optical excitations. “In our protocol the first pulse leads to optical excitation in semiconductor quantum well; next, after dephasing of the optical excitation the second pulse transfers optical excitation into the electron spin excitation; and finally – even after a long delay, which can be 1,000 times longer than the delay between the first and second pulses – we apply the third pulse.” This third pulse transforms spin excitation back to optical excitation and initiates rephasing, so that resulting photon echoes are retrieved from the spin ensemble – and therefore the third pulse can be associated with the readout of optical information previously saved by the optical-to-spin transformation induced by the second pulse.”The unique feature of photon echoes is that they contain the information about the first optical pulse,” Akimov pointed out. “Therefore, photon echoes can be used for information technology optical memory applications. Moreover, it’s possible to perform not only classical light storage but to use photon echoes for realization of quantum optical memories.” This is essential, he stresses, for the development of quantum information and communication systems which use the laws of quantum mechanics to significantly enhance the speed and capacity of future computers. Citation: There and back again: Extending optical storage lifetime by retrieving photon echoes from semiconductor spin excitations (2014, October 31) retrieved 18 August 2019 from https://phys.org/news/2014-10-optical-storage-lifetime-photon-echoes.html (Phys.org) —For all of their differences, classical and quantum communication have at least one thing in common: the importance of being able to store optical information. That being said, optical storage is a complex process that depends largely on the material being used to convert, store and retrieve this information in a controllable, consistent manner – a process especially prone to short optimal memory times when implemented in certain semiconductor quantum structures. Recently, however, scientists at Technische Universität Dortmund, Germany in collaboration with Saint Petersburg State University, Russia and Institute of Physics in Warsaw, Poland demonstrated magnetic-field-induced long-lived stimulated photon echoes1 – coherent optical phenomena in which resonant excitation of a medium by short optical pulses results in a delayed coherent optical flash response – in the electron–trion system, allowed the bidirectional coherent transfer of quantum information in a semiconductor between optical and spin excitations. (Trions are excitations comprising three charged quasiparticles – emergent phenomena that occur when a microscopically complex system, such as a solid, behaves as if it contained different weakly interacting particles in free space.)last_img read more

TMC GoM holds meet to foil BJPs conspiracy

first_imgKolkata: Following the direction of Chief Minister Mamata Banerjee, the Group of Ministers (GoM) on Monday held a detailed meeting to foil “BJP’s conspiracy” of restricting the state’s growth by calling bandh.After the meeting of the GoM, the state Parliamentary Affairs minister Partha Chatterjee said: “BJP is trying to disturb the peace in the state. The administration will take all necessary steps to ensure that everything functions normally like any other day on September 26.” Also Read – Rain batters Kolkata, cripples normal life”Necessary steps will be taken if BJP and its wings, including Bajrang Dal and RSS, threaten people to observe the bandh,” Chatterjee said, adding that the police have also been asked to maintain vigil to avoid any untoward incident in the state. He further said that all state government offices will function as usual. “We also urge private schools and colleges to keep the institutions open. The state government will ensure their safety and security,” Chatterjee said, adding that it would be a criminal offence if anyone damages public property. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedChatterjee said the state Transport department is also taking necessary steps to ensure that the public transport system does not get affected due to the bandh called on September 26. The matter will also be discussed with private operators. The state Transport minister Suvendu Adhikari has also been directed to take necessary steps in this connection. Chatterjee further said that the people of Bengal have never supported any bandh since 2011 and this time too the people will not support the same. “Calling a bandh is a conspiracy to purposefully restrict the growth of the state. Mamata Banerjee is working towards overall development of the state and there have been constant effort by them (BJP) to hamper the same. But the people of Bengal will never let it happen,” Chatterjee maintained. It may be mentioned that the Chief Minister had earlier said that there will be no bandh in the state as it leaves a negative impact on its image and at the same time, it leads to a huge financial loss with everything coming to a standstill on the day of bandh. The Chief Minister, who is at present in Milan, had set up the GoM before leaving for her visit to Germany and Italy. The GoM has been tasked with holding meetings and taking the final decision on various issues that are cropping up in the state, in the Chief Minister’s absence. The GoM has discussed various issues to ensure that people do not face any inconvenience after setting out of their homes on September 26.last_img read more

Laser tag and race track to debut on NCLs new Norwegian Bliss

first_img<< Previous PostNext Post >> Laser tag and race track to debut on NCL’s new Norwegian Bliss Monday, August 14, 2017 Posted by Travelweek Group center_img Share Tags: Norwegian Cruise Line LAS VEGAS — New details have emerged about the Norwegian Bliss, Norwegian Cruise Line’s 16th ship that will sail to Alaska, the Caribbean and the Mexican Riviera (select voyages) beginning in June 2018.Currently being constructed at MEYER WERFT in Germany and scheduled for delivery in Spring 2018, the custom-built ship will boast many firsts at sea, including the largest competitive race track at sea and an open-air laser tag course. These exclusive details were announced earlier this week by Andy Stuart, NCL president and chief executive officer at Virtuoso Travel Week at the Bellagio Hotel in Las Vegas.“Norwegian Bliss will no doubt be our most incredible ship to date. We have elevated Norwegian Bliss’s onboard experience to new heights, bringing the best features from across our fleet plus exciting new first-at-sea activities like the largest race track and new dining concepts to create the ultimate cruising experience,” said Stuart.The two-level electric-car race track – the longest at sea at nearly 1,000 feet – will feature four speed settings to accommodate novice, intermediate and advanced drivers, reaching up to 30 miles per hour with a special ‘turbo boost’ available on each lap. The electric cars will run silent but the sounds of a race car engine will still be piped in through speakers located in the car’s headrest to give racers a more authentic experience.The laser tag course, available both day and night, will be themed as an abandoned space station. Guests of all ages can go into stealth mode and compete against family and friends with state-of-the-art laser guns.To wind down, passengers can relax at the ship’s expansive pool and sundeck featuring two pools and six infinity hot tubs that scale the side of the ship. There’ll also be the Aqua Park with two multi-storey waterslides: the high-speed Ocean Loops free fall slide featuring two loops, and the tandem Aqua Racer, which will allow guests to race side-by-side on inner tubes.2017 Norwegian Joy Architecture Photo ShootNorwegian Bliss Architectural RenderingNorwegian Bliss Architectural RenderingFor younger guests, there’ll be the Kids’ Aqua Park, a watery wonderland of splash pads, water cannons, tipping buckets and slides, as well as the Splash Academy, the fleet’s award-winning complimentary youth program featuring age-appropriate supervised activities for kids aged three to 12. Teens aged 13 through 17 can also enjoy their own space aboard at Entourage, home to gaming stations, foosball, air hockey and a dance floor. Even the youngest of guests – ages six months to under three years old – will have a dedicated space onboard the Bliss at the fleet’s largest Guppies playroom.More news:  CIE Tours launches first-ever River Cruise CollectionDining will be both vast and varied, with restaurants like Q, the all-new Texas Smokehouse, and Los Lobos, which will serve elevated Mexican cuisine. Also onboard will be Cagney’s Steakhouse, The A-List Bar, Le Bistro for French food, La Cucina for Tuscan cuisine, Ocean Blue for fresh seafood, Jimmy Buffet’s Margaritaville at Sea, Teppanyaki for Japanese, the new Coco’s for à la carte dessert, and much more.Norwegian Bliss Architectural Rendering2017 Norwegian Joy Architecture Photo ShootNorwegian Bliss Architectural RenderingFor Wellness options the Mandara Spa on deck 16 aft will offer 24 treatment rooms, a full-service salon and barber shop, fitness centre and themal suite. At the fitness centre, guests can use state-of-the-art TechnoGym cardiovascular and strength training equipment, as well as sign up for personal training and group fitness classes like TRX, Norwegian Fight Club and RYDE Cycle. Equally impressive will be the thermal suite where guests can enjoy the vitality pool and heated whirlpool, steam room, sauna, snow room and 17 heated stone loungers. Passes to the thermal suite will be available for purchase for a limited number of guests each sailing.More news:  ‘Turn around year’ for TPI brings double-digit growthDuring her inaugural summer season, Norwegian Bliss will sail weekly seven-day Alaska cruises each Saturday from Pier 66 in Seattle where it will be the largest ship to ever seasonally homeport on the West Coast. A first for any ship on the West coast will be The Waterfront, a popular feature that debuted on Norwegian Breakaway in 2013. This outdoor promenade will be home to al fresco dining, bars and lounge spaces with spectacular views of Alaska’s scenery and wildlife.As for nightlife, Norwegian Bliss will offer deck parties at Spice H2O and an expansive casino featuring hundreds of slot machines and table games. In a first for Norwegian, the casino will now offer a smoking and non-smoking casino to cater to all guest preferences. There’ll also be the Tony-Award winning Jersey Boys musical production and two observation lounges from where guests can spot whales and watch the sunset.Accommodations onboard run the gamut, from luxury suites in The Haven by Norwegian, to Studio staterooms for solo travellers and new connecting staterooms for large groups and families.The ship’s itinerary will feature calls in Ketchikan, Juneau, Skagway and Victoria, British Columbia, along with scenic glacier cruising. Norwegian Bliss will sail her inaugural Winter season beginning in November 2018, sailing seven-day Eastern Caribbean cruises each Saturday from PortMiami, featuring calls in St. Thomas, US Virgin Islands; Tortola, British Virgin Islands and Nassau, Bahamas.last_img read more

HIGHEST EVER HOUSEHOLD WASTE RECYCLING RATE LAST Y

first_imgHIGHEST EVER HOUSEHOLD WASTE RECYCLING RATE LAST YEAR – DUFFY was last modified: February 14th, 2018 by John2John2 Tags: SINN Féin spokesperson on Energy, Environment and Climate Change Councillor Sandra Duffy has welcomed the news that the North of Ireland recorded its highest ever household waste recycling rate last year.Councillor Duffy was commenting on figures released by the Department of Agriculture, Environment and Rural Affairs which showed that recycling rates from July to September 2017 increased from 48.4% in the same period in 2016, to 51.5% in 2017.“Increases in household recycling rates are welcome and will result in much needed environmental improvements.“We should continue to focus on building a culture of recycling which includes learning from best practice, developing the right infrastructure, incentives and public awareness campaigns. “I would continue to encourage everyone in the Derry and Strabane Council area to reuse, reduce and recycle and hopefully next year we will be setting a new waste recycling record,” she added. ShareTweet COUNCILLOR SANDRA DUFFYDerry and Strabane CouncilHIGHEST EVER HOUSEHOLD WASTE RECYCLING RATE LAST YEAR – DUFFYSinn Feinlast_img read more