Rabat- The Middle East and Africa (MEA) has seen a decline in sales of tablets, reported the latest ‘Middle East and Africa Quarterly Tablet Tracker’ from International Data Corporation (IDC).The region’s tablet market shrink 13.3% in Q2 of 2015 in comparison to Q2 of the previous year.The latest data shows that the overall market totaled 3.52 million units for the quarter, with Middle East shipments declining 18.8% year on year. In contrast, Africa performed much better, with shipments increasing 2.0% over the same period“Market saturation continues to inhibit the growth of tablets in Middle Eastern countries, while poor consumer sentiment caused by the effects of low crude oil prices is compounding the issue,” says Fouad Rafiq Charakla, senior research manager for personal computing, systems, and infrastructure solutions at IDC. “In light of these circumstances, the commercial sector – spurred by some large-scale education deals – holds the key to driving growth in the region’s tablet market over the coming quarters.”Samsung continued to lead the tablet market in Q2 2016 with 20.8% share. Yet, the company has seen a decline in shipments by 35.3%, according to IT Africa.Lenovo remained in second place with 12.9%, and has suffered a 15.1% decline in shipments. Huawei leaped above Apple to rank third in the market after its shipments increased 179.3% year on year to give it 10.0% share. Apple followed closely behind in fourth place with 9.3% share, having seen its shipments decline 28.1%.In the last five years, mobile phone and tablets have become integral for Moroccans who rely on them to communicate and navigate the web.But some experts say there is a trend away from tablets. “Tablets have traditionally been used for content consumption rather than content creation, and as consumers have gradually transitioned to bigger smartphones, the majority of content consumption activities have shifted in the same direction and away from tablets,” says Nakul Dogra, a senior research analyst for personal computing, systems, and infrastructure solutions at IDC.
Category: fnuolivahycpuibq Foreign Ministry funds wasted on adult films
Foreign Ministry funds were used on extravagances – including adult films, $200 shots of cognac and $288 steaks by the former Government, Parliament was told today.Foreign Minister Mangala Samaraweera claimed that in the Washington DC embassy over 330, 000 US dollars was missing in one property transaction. He said that from the Foreign Ministry expenses alone over 339 million rupees were wasted on 5 lobbying firms between 2009 and 2014 that produced no results, while many of our capable diplomats were kept idle for political reasons. “The Foreign Ministry also became a site of political patronage – the Former Monitoring MP cronies’ children, the CHOGM babes and boys, were appointed to Foreign Ministry positions without proper procedure. They were paid through the Kadirgamar Institute of which former Foreign Minister was Chairman of the Board. Millions of rupees were wasted, mainly through the Foreign Minister’s vote, on extravagances – including adult films, $200 shots of cognac and $288 steaks,” he said.The Minister was speaking during the 2016 budget allocation for the Foreign Ministry. (Colombo Gazette) The Minister also said that many other payments were made through the Presidential Secretariat and Central Bank.
Category: fnuolivahycpuibq Tillakaratne Dilshan enters politics joins SLPP
Tillakaratne Dilshan captained the Sri Lanka cricket team and was best known for the ‘Dil scoop’ when he played for Sri Lanka. (Colombo Gazette) Former Sri Lankan cricketer Tillakaratne Dilshan has entered politics and extended support to the Sri Lanka Podujana Peramuna (SLPP).Dilshan obtained the membership of the SLPP today, the SLPP media unit said.
Category: fnuolivahycpuibq Afghanistan UN food agency chief appeals for donor generosity to save lives
“We must move with speed and determination,” said Catherine Bertini, WFP Executive Director. “Millions of lives are at stake. This week we have made an important start with the resumption of some overland food deliveries. We have to build on this if we are to avoid a humanitarian disaster.”WFP food deliveries now average 500 tonnes a day – enough to feed about 1 million people. The agency is aiming to deliver as much as 52,000 tonnes per month, the amount necessary to feed the 6 million people identified as most in need, as well as the 1.5 million people possibly expected to seek refuge outside Afghanistan.According to the agency, the severity of the crisis inside Afghanistan varies from region to region, with the mountainous central highlands posing the most difficult challenge in terms of delivery. “Once the snows start in mid-November, most roads will be impassable,” Ms. Bertini said. “We estimate that 100,000 families will be cut off from food deliveries. Unfortunately, given the current situation on the ground, it is impossible to pre-position the necessary supplies to last these people through the winter. Without food, they will either have to leave their homes in search of supplies or die.”In response, WFP is planning to airdrop food to the area. However, a number of conditions must be met before this operation can begin. “Before we can go ahead, we need to identify safe air corridors and obtain approval to use them from the Afghan authorities,” Ms. Bertini said. “As well, we need to get approval for our staff to operate the drop-zones to ensure proper targeting and crowd control.”In addition, the agency chief said WFP could use a method known as “snowdrops,” which don’t require drop-zone teams. This involves dropping small 300-gram packets of food rather than the 50-kilo bags used in conventional airdrops, thereby avoiding injuring those on the ground. However, she pointed out that “snowdrops” are not effective if used from high altitudes, as the packets tend to scatter.Currently, WFP is feeding about one million people inside Afghanistan using existing foodstocks. Ever since the crisis began on 11 September, WFP operations have been hampered by security concerns, a ban on communications equipment, a strained distribution and monitoring system, as well as difficulties in securing necessary commercial trucking, particularly in the rural areas.
Category: fnuolivahycpuibq Wireless WASPs let loose in underground mines
CSIRO is excited about a new wireless tracking technology – it can hone in on mine workers deep underground, helping to save lives and boost productivity. WASP (Wireless Ad hoc System for Positioning) can track people and objects to an accuracy of about 0.5 m, a great improvement on conventional methods such as GPS and WiFi-based tracking, which in underground environments are either inaccurate or don’t work at all. It was commercialised by mining communication company Minetec and incorporated into its Trax+Tags II suite, which was launched at AIMEX in Sydney.“WASP is critical to modern underground mining and will significantly improve productivity, lower operational costs, and reduce health and safety issues for mining operations,” says Andy Sheppard, Executive General Manager of Minetec.“The high resolution situational awareness improves the accuracy of forecasted productivity thus closes the gap between planned and actual targets. “It is a revolutionary technology that offers a highly accurate, cost-effective tracking solution for underground mining and we are hoping to expand its use for aboveground in the near future.”Wireless systems expert Dr Mark Hedley who led the project, says WASP uses small mobile tags attached to vehicles or mine workers together with a series of reference nodes placed at known locations around the area being monitored.“These nodes communicate wirelessly, calculating the arrival time of signals, allowing the system to accurately track the location and speed of objects as they move through an underground mine pit or tunnel,” he says.“The technology can be used to locate workers in emergency situations and has the ability to act as a network that could send sensor data such as a worker’s heart rate, core temperature or gas or radiation levels in the surrounding environment.”
Category: fnuolivahycpuibq Poll Should ESB workers be barred from striking
Yes (2035) YesNoI don’t knowVoteRead: ESB unions issue strike threat ahead of meeting next week>Read: Charity warns ESB strike would ‘hurt most vulnerable’>Read: Aaron McKenna: Essential utilities like the ESB should be protected from strikes> I don’t know (1335) WORKERS AT THE ESB have served strike notice on their employers after discussions with management over a pension scheme failed.Today, with the threat of a strike looming, Aaron McKenna argues in an Opinion & Insight column that ESB workers should be banned from striking and causing a total or partial power failure.Only a small number of groups, such as rank and file gardaí, are barred from striking in this country.McKenna argues that “special arrangements” could be made in the dispute, in order to avoid an electricity strike and its knock-on effects.We ask: Should ESB workers be barred from striking? Poll Results: No (3850)
Category: fnuolivahycpuibq Le satellite Glory va étudier les effets des aérosols
Le satellite Glory va étudier les effets des aérosolsDes scientifiques français du CNES participent à la mission Glory, un satellite qui sera lancé mercredi pour étudier l’effet des aérosols sur la Terre.L’irradiance solaire (la puissance d’un rayonnement électromagnétique par unité de surface) est l’une de nos principales sources de chaleur. Il convient d’étudier les effets des nombreux aérosols utilisés sur la planète afin de déterminer des changements dans notre climat. C’est le but du satellite Glory, qui sera lancé le 23 février depuis la base de Vandenberg en Californie et à laquelle participent des scientifiques du CNES. Il devrait fournir de nouvelles données sur le bilan radiatif de la Terre. Le satellite sera équipé de trois instruments, le TIM (Total Irradiance Monitor) composé de 4 radiomètres pointés vers le Soleil pour mesurer son irradiance, l’APS (Aerosol Polarimetry Sensor), un radiomètre qui mesure la polarisation du rayonnement solaire réfléchi par les surfaces, les aérosols et les nuages, et la Cloud camera, un imageur qui fournit le contexte nuageux pour l’APS. “Les mesures réalisées par Glory permettront d’affiner l’étude des variations saisonnières de concentration d’aérosols et de l’irradiance solaire qui nous parvient”, explique ainsi Anne Lifermann, Ingénieur mission au CNES. Ces aérosols agissent comme un parasol et ont un effet direct qui refroidit le système ainsi qu’un effet indirect, moins connu, sur les nuages dont ils modifient les propriétés radiatives. “Or dans les données du GIEC (Groupe d’experts Intergouvernemental sur l’Evolution du Climat, ndlr), ces deux effets présentent une marge d’incertitude importante, d’où la nécessité de les étudier pour mieux comprendre leur rôle dans le bilan radiatif de la Terre et l’évolution du climat”, continue-t-elle. Le 21 février 2011 à 14:26 • Emmanuel Perrin
Category: fnuolivahycpuibq Draco un traitement efficace contre tous les virus
Draco, un traitement efficace contre tous les virus ?Des chercheurs du Massachusetts Insitute of Technology (MIT) tentent de mettre au point un traitement révolutionnaire qui pourrait lutter efficacement contre tous les virus. Celui-ci, baptisé “Draco”, s’est pour l’heure montré efficace contre 15 virus parmi lesquels celui de la grippe H1N1.Cela parait trop beau pour être vrai et pourtant. Le magazine Time rapporte que des chercheurs du MIT essaient de mettre au point un traitement qui pourrait être efficace contre tous les virus. Ce traitement baptisé “Draco” (pour Double-stranded RNA Activated Caspase Oligomerizers) s’est déjà montré efficace, sur des cellules humaines et animales infectées par 15 virus différents dont celui de la grippe H1N1, du rhume commun, de la dengue, de la polio et plusieurs types de virus responsables de fièvres hémorragiques.Les premiers résultats, publiés dans la revue scientifique PLOS One, ont été obtenus en poussant des cellules infectées à s’autodétruire. Le traitement amènerait en fait toutes les cellules touchées par le virus à l’apoptose, la mort cellulaire programmée, rapporte Le Monde. En effet, quand un virus attaque des cellules saines, il s’approprie leurs capacités à se répliquer et les utilise pour se multiplier. Lors de ce processus,”le virus produit des ARN double-brin, un marqueur indiquant que la cellule est infectée”, précise Time magazine. Ensuite, quand le virus a fini de se répliquer, il tue la cellule hôte et passe aux suivantes.Ainsi pour combattre l’infection virale, “les cellules humaines disposent de protéines qui s’attachent à l’ARN double-brin et déclenche une cascade de réactions qui stoppe la réplication des virus”. Mais Todd Rider, l’un des responsables du programme, a eu l’idée de combiner ces protéines avec une autre protéine qui pousse les cellules au suicide. Résultat : le traitement génère une autodestruction de toutes les cellules infectées, rapporte Le Monde. Un traitement aussi efficace contre le VIH ? À lire aussiGaz du sang : définition, comment cela se passe, y a-t-il des risques ?En laboratoire, Draco a ainsi déjà permis de guérir des souris infectées par le H1N1 et les scientifiques chargés du projet espèrent obtenir l’autorisation de pratiquer d’autres essais cliniques animaux avant de passer à l’être humain. Selon le quotidien britannique The Daily Mail, ce nouveau médicament pourrait être commercialisé “d’ici à dix ans”. Un délai qui apparait court au vu du chemin à parcourir mais indispensable si l’on considère les nombreuses perspectives. S’il s’avère réellement efficace, Draco pourrait en effet permettre de combattre efficacement des virus contre lesquels les traitements sont actuellement limités, notamment les hépatites et le VIH, responsable du sida. “Il est certainement possible que le traitement ne fonctionne pas avec certains virus, mais pour le moment, nous n’en avons pas trouvé”, assure Todd Rider, qui précise qu'”en théorie, ça devrait marcher contre tous les virus”.Le 24 août 2011 à 15:24 • Maxime Lambert
Category: fnuolivahycpuibq Nokia un BatLumia 900 en préparation
Nokia : un Bat-Lumia 900 en préparation ?Comme les petites copines du célèbre héros masqué au fond d’une bat-cave, de nombreuses rumeurs envahissent la Toile concernant une édition limitée du Nokia Lumia 900.Sortira, sortira pas ? La rumeur enfle sur le web et ne semble pas prête à baisser les armes : Nokia sortirait très bientôt une version très spéciale du Lumia 900, à l’effigie du Caped Crusader, aka The Dark Knight aka Bruce Wayne, aka…Batman !Ce n’est pas la première fois que la firme finlandaise proposerait un tel produit (Nokia l’avait déjà réalisé pour le Lumia 800 – notre photo), et il faut bien dire que l’un des plus beaux smartphone du moment frappé du sigle du plus mystérieux des super héros de DC Comics, il y a de quoi piétiner comme un pingouin !D’après le site Pocket-Lint (lien non disponible), Nokia aurait indiqué que cette édition serait élaborée avec une coque en polycarbonate, avec le logo du célèbre héros réalisé au laser.À lire aussiDengue : symptômes, traitement, prévention, où en est-on ?Dernier détail et non des moindres : il n’y aurait que très peu d’exemplaires, et ceux-ci seraient vendus à un prix légèrement supérieur à celui du smartphone “classique”.Les intéressés n’ont plus qu’à préparer leurs bat-mobiles pour foncer au premier signal !Le 29 mai 2012 à 10:30 • Maxime Lambert
Category: fnuolivahycpuibq The Walking Dead Game And Telltale Games Comes To An End In
Stay on target Sorry, You Can’t Date Keanu Reeves in ‘Cyberpunk 2077”Star Wars Pinball’ Has Your Favorite Brand in Ball Form Update: The Walking Dead game reaching its conclusion isn’t the only good news for fans of former Telltale developers. Several veterans of the shuttered adventure game team just formed AdHoc Studio, a new company for making interactive narrative entertainment. And if Black Mirror: Bandersnatch is any proof, people like that sort of things these days.It’s been a long and bloody journey, a struggle rivaling that of any zombie apocalypse survival story, but at last we know when Telltale’s The Walking Dead is pushing one more time past the finish line. Episode 4 “Take Us Back” ends Clementine’s seven-year-saga on March 26, the same day as the physical release on Nintendo Switch, PC, Xbox One, and PlayStation 4. And not only will we put this episodic adventure game series to rest, but really pour one out for Telltale Games as a whole.The arc of Telltale’s The Walking Dead is a serious example of life imitating art in video games, like Phantom Pain levels of meta. Telltale had been known for solid episodic adventure game before. But The Walking Dead rocketed the studio to new heights with its focus on well-written player-crafted narrative driven by high-stakes emotion choices, not just annoying puzzles. Players felt as if it was their personal responsibility to prepare young Clem for the new world. It was the best Walking Dead story in any medium (and had some of the coolest Black characters in video games). It was totally new.And Telltale spent the rest of its existence trying to chase that high. After the first season, key Walking Dead creative talent left to form Campo Santo, developers of Firewatch. Later Walking Dead seasons suffered as a result. Other great Telltale games did launch during this time, particularly the Batman games. But the studio also started pumping its own precarious adventure game market with less-than-great licensed products. They managed to make a Game of Thrones game nerds didn’t care about.Unfortunately, this business model (and severe mismanagement) led to more and more instability at the company itself as it struggled to maintain its rapidly expanding size. And eventually the bubble burst last year when Telltale dramatically went bankrupt, taking with it countless hardworking game developers (who really really really need to unionize).Caught in the middle of all this was the fourth, final season of The Walking Dead. Telltale managed to put out two pretty well-received episodes of Clementine’s final journey. But once Telltale collapsed the last two episodes were put in jeopardy since the people making it were justifiably more concerned with having money for food than finishing a video game. Ultimately, Skybound Games, the video game imprint of Walking Dead creator Robert Kirkman’s entertainment company, wrangled enough surviving developers to finish the project.So as cathartic as it may be to see Telltale’s The Walking Dead ride off into the sunset on March 26, instead of abruptly cutting to black, real-life tragedy hangs over the game regardless. It really is like a zombie movie. If you want to remember more Telltale games, we’ve ranked them all right here.
Category: fnuolivahycpuibq Have a child who is turning 3 soon
Is your son or daughter turning 3 years old soon? The Columbian is looking for a child to follow during the third year of his or her life as part of a series examining what it’s like to be a 3-year-old in Clark County. A reporter and photographer will attend the child’s third birthday celebration, check in with the family for updates throughout the year and bookend the series on his or her fourth birthday. We’re specifically looking to follow a child who will turn 3 years old in January, February or March of this year.If you’re open to sharing your experiences with The Columbian and our readers, reach out to reporter Calley Hair at email@example.com.
Category: fnuolivahycpuibq Sixth Annual PAWmicon Draws in Large Crowd
Categories: Local San Diego News FacebookTwitter Posted: July 16, 2018 KUSI’s Sandra Maas and Allen Denton with details. SAN DIEGO (KUSI) – While San Diego’s biggest event Comic-Con is just a few days away, The Helen Woodward Animal Center decided to throw an event of their own- it’s called PAWmicon. The Animal Center’s 6th annual event was the biggest ever at Hazard Center in Mission Valley! Updated: 8:26 PM 00:00 00:00 spaceplay / pause qunload | stop ffullscreenshift + ←→slower / faster ↑↓volume mmute ←→seek . seek to previous 12… 6 seek to 10%, 20% … 60% XColor SettingsAaAaAaAaTextBackgroundOpacity SettingsTextOpaqueSemi-TransparentBackgroundSemi-TransparentOpaqueTransparentFont SettingsSize||TypeSerif MonospaceSerifSans Serif MonospaceSans SerifCasualCursiveSmallCapsResetSave Settings July 16, 2018 Sandra Maas, Allen Denton Sandra Maas, Allen Denton, Sixth Annual PAWmicon Draws in Large Crowd
Category: fnuolivahycpuibq Court rules holiday does not need to be retroactively recalculated if hours
The Court of Justice of the European Union (CJEU) has held that employees’ accumulated holiday does not need to be retroactively recalculated following an increase in their hours.In the case of Kathleen Greenfield vs The Care Bureau, Greenfield worked part time with a holiday entitlement of 5.6 weeks a year, and took all her accrued annual leave for that period. From August 2012, her hours increased to an average of 41.4 hours a week and her employer specified that all hours, including overtime, would be used to calculate paid annual leave.Greenfield requested a week of paid leave in November 2012, which was denied on the basis that she had taken her full entitlement in June and July 2012, while working fewer hours.When Greenfield’s employment ended in May 2013, she was not paid in lieu of accrued annual leave, as she had taken it all.She argued that the EU Framework Agreement on equal treatment of part-time workers and the Working Time Directive meant that the UK Working Time Regulations should be interpreted to provide that the leave she had already accrued on fewer hours should be adjusted to reflect her new working hours and not the hours worked at the time the leave was taken.The CJEU held that employers are not obliged to provide that entitlement to paid annual leave already accrued, and possibly taken, be recalculated retrospectively according to an employee’s new working pattern.However, the Court did rule that the employer should recalculate annual leave for the period after the increase in hours.The Court had previously held that a change in working hours, particularly a reduction, cannot reduce the right to annual leave that the worker has accumulated during the period when they had worked increased hours.Jillian Naylor, employment partner at Linklaters, said: “Calculating annual leave for workers on part time or variable hours can be difficult for employers. Most employers will not recalculate accrued holiday when a worker increases or decreases their hours.“This is a common sense decision and will be a relief for employers in this situation as it confirms that their existing practice is correct.”BESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswyBESbswy
Category: fnuolivahycpuibq Lightning strikes kill 8 in four districts
Lightning. File photoEight people were killed in lightning strikes in Sirajganj, Sunamganj, Magura and Rangamati districts on Sunday, reports UNB.According to reports reaching the UNB news desk, Shamsul Mondol, 57, and his son Arman Ali, 17, of Kazipur upazila in Sirajganj were killed when a streak of thunderbolt struck them while working on their peanut field at a char along the Jamuna River.In another incident, Abdul Quader, 37, son of Aher Monadol of Pestak Kura village, was killed in a lightning strike while cutting paddy on his field amid rain, said Kamarkhand police station officer-in-charge Abu Oabida.In Magura, three people were killed by lightning strikes in separate places of the district.The deceased are Alam, 35, of Bulugram, Shibananda, 40, of Araisat village and Mehedi, 18, of Sadar upazila.Alam and Shibananda were killed when a thunderbolt hit them during rains while Mehedi died as he fell from an electric pole after being hit by a thunderbolt while working.In Rangamati, Mansura Begum, 32, of Baghaichhari upazila, was killed in a lightning strike while bringing back home her cattle from field around 10:00am, said Baghaichhari police station officer-in-charge Amir Hossain.In Sunamganj, Liton Mia, 30, a farmer of Syedpur village in Sadar upazila, was killed when a thunderbolt struck him while working on his cropland around 8:30 am.
Category: fnuolivahycpuibq Texas Governor Greg Abbott Delivers 2017 State Of The State Speech Update
Share Andrew SchneiderTexas legislators gather for the 2017 State Of State Speech at the capitol in Austin.UPDATE 12:42 p.m.: Texas gov. Greg Abbott told lawmakers Tuesday to get to work on better funding for the state’s beleaguered child welfare system and banning so-called “sanctuary cities.”Abbott used his second State of the State address to echo president Donald Trump’s executive actions that would withhold taxpayer funding to local governments that don’t comply with federal immigration agents. But Abbott wasn’t specific about what a Texas anti-sanctuary law should look like.The Texas’ child welfare crisis has resulted in rising deaths and hundreds of allegedly abused or mistreated children going unseen by state investigators. The problem has worsened despite Abbott ordering an overhaul last year.Abbott also ordered an immediate hiring freeze of state employees to address a budget deficit. He also called on lawmakers to craft a budget that does not dip into state government reserves, or “rainy day fund.”Abbott is also calling for a review of the state’s school finance system that the Texas Supreme Court ruled was only barely constitutional last summer. Abbott also called for school vouchers, an effort that has stalled repeatedly in Texas legislature despite steadfast support from top conservatives.For more on Abbott’s speech, read the tweets below from Houston Public Media/News 88.7 Government and Politics Reporter Andrew Schneider, who was at the state capitol for the speech.PREVIOUSLY: Texas Gov. Greg Abbott is laying out a new agenda that’s expected to enthusiastically embrace President Donald Trump’s crackdown on so-called “sanctuary cities.”Abbott on Tuesday will deliver his State of the State address to the Republican-controlled legislature at a time when Trump’s executive actions on immigration and building a border wall promise to heavily impact Texas.Abbott hasn’t commented on Trump banning immigrants from seven Muslim-majority countries, which has sparked protests nationwide.One Trump policy Abbott clearly backs is denying funds to local governments that don’t fully cooperate with federal immigration agents. Abbott has said he also wants criminal penalties.You can see live video of the speech below, plus live tweets from Houston Public Media/News 88.7 Government and Politics Reporter Andrew Schneider, who’s at the state capitol for the speech.
Category: fnuolivahycpuibq As OPEC Meets Houston Is Better Prepared To Withstand The Fallout
Edmund D. Fountain/ProPublica/Texas TribuneOPEC – the Organization of Petroleum Exporting Countries – met today in Vienna, Austria. The likely No. 1 item on members’ agenda is the recent decline of – and volatility in – oil prices.Saudi Arabia proposed OPEC and its allies, like Russia, cut crude oil production by a million barrels a day. Russia said it’ll go along with production cuts. But Saudi Arabia’s suggestion is less than some think is needed to address an oversupply of oil, and it led to crude oil prices to fall – again.The recent decline of – and volatility in – oil prices has led to some hand-wringing as we appear headed for another surplus in oil in early 2019.So, what does this mean for the oil and gas industry here in Houston? Which sectors could benefit, and which could be hurt? After dramatically low prices a few years ago, are Greater Houston oil producers and related businesses better prepared for another round of lower prices?In the audio above, Craig Cohen talks it over with energy analyst Loren Steffy, managing director for 30 Point Strategies, a writer-at-large for Texas Monthly, and a columnist for EnergyVoice.com. Share
Category: fnuolivahycpuibq LongLasting Quantum Memory Leads to LongDistance Quantum Communication
Citation: Long-Lasting Quantum Memory Leads to Long-Distance Quantum Communication (2008, October 7) retrieved 18 August 2019 from https://phys.org/news/2008-10-long-lasting-quantum-memory-long-distance.html “Our work opens up new avenues for extending the coherence time of a quantum memory towards the seconds regime,” co-author Chih-Sung Chuu of the University of Heidelberg told PhysOrg.com. He added that a storage time of a few seconds could result in a communication distance of a few thousand miles.Most quantum memory devices reported to date use magneto-optical traps, rather than optical traps, to confine groups of atoms. However, the magnetic field limits the storage time by causing the atoms’ ground state to broaden. The broadening lingers even when the magnetic field is temporarily turned off during storage, and, without the magnetic field’s confinement, the atoms begin to diffuse after a few hundred microseconds. With this limited storage time, quantum communication cannot reach very long distances.By using an optical trap instead, the scientists could eliminate the negative effects of the magnetic field on storage time. The optical trap is formed by a tightly focused laser beam, which can trap atoms at a density of one trillion atoms per cubic centimeter. Then, a right-circularly polarized “write” beam of about 100,000 photons illuminates the group of atoms. Later, a left-circularly polarized “read” beam converts the quantum state of the atoms into a photon.“The ‘write’ beam probabilistically generates a quantum state in the atoms by interacting with them,” Chuu explained. “The ‘read’ beam is used to convert the quantum state into a photon, which can be detected by a single-photon detector.”In their demonstration, the scientists achieved storage times of 60 microseconds, but they explain that this is currently limited by the high temperature of the experiment. Cooling the atomic ensemble to a lower temperature (submicro-Kelvin, or very near absolute zero) could limit the thermal motion of the atoms, and extend the storage time. With cooler temperatures and by using an optical lattice for additional confinement, the physicists expect to achieve a storage time of several seconds. By increasing the storage time of a quantum memory device, the scientists have taken another step toward realizing long-distance quantum communication, which could be used to build quantum computers, among other innovations. Quantum computers could be extremely quick at solving certain problems, such as factoring, which would make them useful for applications that require large amounts of computing power. More information: Chuu, Chih-Sung; Strassel, Thorsten; Zhao, Bo; Koch, Markus; Chen, Yu-Ao; Chen, Shuai; Yuan, Zhen-Sheng; Schmiedmayer, Jörg; and Pan, Jian-Wei. “Quantum Memory with Optically Trapped Atoms.” Physical Review Letters 101, 120501 (2008).Copyright 2008 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. The basis for quantum communication is the ability to entangle two photons, A and B, where one photon, B, is sent down a transmission channel. There is also a third photon, C, which is entangled to a quantum state but not to the other two photons. A quantum state may be represented by a group of atoms that shares a superposition between two ground states (in superposition, both ground states exist simultaneously, and there is a certain probability that the atoms are in one ground state or the other).When physicists perform entanglement swapping by making a Bell state measurement on photons A and C, photon B also becomes immediately entangled to the quantum state, even though it has already traveled down the transmission channel. The site where the sent photon becomes entangled with the quantum state is called a quantum repeater. Quantum repeaters, which occur throughout the transmission channel, can generate and store entanglement in order to boost the signal, with the aim of getting the entangled state to reach the other end. Entanglement can be stored by some sort of quantum memory device until, ultimately, the quantum state is “read” by being converted into another photon.The key is that the quantum state should stay entangled with the sent photon for as long as possible, in order to maintain the quantum correlation throughout the transmission channel. Without a quantum memory, there is a small probability that quantum information can be transmitted over large distances, but the probability is exponentially dependent on the transmission length. With quantum memory, the transmission probability is only polynomially dependent on the length, greatly reducing the waiting time for a successful transmission. Physicists are currently working to improve the storage times of quantum memory devices. Recently, a team of scientists from the University of Heidelberg in Germany, the University of Science and Technology of China in Heifei, China, and the Atominstitute der Österreichischen Universitäten in Vienna, Austria, has demonstrated a new way to extend the storage time of quantum memory devices. For the first time, the scientists successfully used an optical trap to confine a group of atoms, in which the quantum state is stored. The scientists predict that the method could greatly exceed previous storage times that are on the order of microseconds. (PhysOrg.com) — Physicists have taken a step closer to realizing long-distance quantum communication, in which a quantum state is transferred from one location to another by becoming entangled with a traveling photon. Explore further Optimizing the growth of coatings on nanowire catalysts (A) In the scientists’ apparatus, the atomic ensemble is confined in an optical trap formed by a focused laser beam. This beam is overlapped with counterpropagating “write” and “read” beams. The resulting Stokes and anti-Stokes photons are detected, serving as a useful probe for quantum memory storage. (B) An absorption image of the optically trapped atoms. Image: Thorsten Strassel. 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.
Category: fnuolivahycpuibq iPhone 7 reveal Confession in 1989 abduction case Creepy clowns in Carolina
Man chases creepy clown into the woods in North Carolina with a machete.Some people don’t like clowns. But one man with a machete chased a person wearing a clown mask into the woods. https://t.co/9Vmr2Mktzg— NBCWashington (@nbcwashington) September 7, 2016 RIP #HIddleswift. Sometimes forever means three months.Taylor Swift and Tom Hiddleston split after being mocked all summer. What now? https://t.co/SVa84xPOQv— The Independent (@Independent) September 7, 2016 Confession in 1989 abduction and killing of Jacob Wetterling.Mother of Jacob Wetterling needs ‘time to heal’ after 27-year ordeal – video https://t.co/HXGs0Xfffa— The Guardian (@guardian) September 6, 2016 Advertisement Drone video of three whales under a boat. Dallas Morning News endorses Clinton. 1st Dem endorsement since 1945.We recommend @HillaryClinton for U.S. president https://t.co/eWtGJexQqz pic.twitter.com/CazHEkM2pX— Dallas Morning News (@dallasnews) September 7, 2016 Apple expected to reveal iPhone 7 today.What to expect from today’s #AppleEvent: https://t.co/anT5s1tXqr pic.twitter.com/oRctpMbkld— Forbes (@Forbes) September 7, 2016 Bill Cosby rape trial set for June 2017.Pennsylvania judge sets Bill Cosby’s trial for June 2017 https://t.co/HPtsbxMggz pic.twitter.com/FoEmUfNcxi— The Atlantic (@TheAtlantic) September 7, 2016 Jackie Chan breaks a cement block while holding an egg. Incompetent Congress can’t pass Zika bill.Zika outbreak: US Congress blocks Zika funding bill https://t.co/RRKmC8Wm9E— BBC Science News (@BBCScienceNews) September 7, 2016
Category: fnuolivahycpuibq Sunwings latest 737 MAX update plus new Countdown to Summer Sale
Share Posted by TORONTO — Sunwing has announced additional flying capacity and a reconfigured schedule without the Boeing 737 MAX 8 following the extension of the aircraft’s grounding.According to Sunwing’s latest operational update, schedule changes for departures up to and including Monday, Sept. 2 have now been made and are reflected in its flight times on sunwing.ca and across its reservation system.If a customer’s travel plans have been affected, “we will be communicating this directly to their travel agent, as appropriate,” said Sunwing. “We are currently still finalizing any schedule adjustments beyond this departure date and are working hard to ensure these changes will have minimal impact on our operations and on customer experience.”In other Sunwing news, the company has launched its ‘Countdown to Summer Sale’, which runs until June 21 and includes savings of up to 30% on select departures to top-rated resorts across the Caribbean, Mexico and Central America. Plus, depending on the resort, clients can enjoy more savings with Kids Stay, Play and Eat FREE deals, no single parent supplement fees, exclusive inclusions and more.More news: Sunwing to further boost Mazatlán service with new flights from Ottawa“There are several hidden costs associated with staycations that many don’t always account for when planning,” said Jacqueline Grossman, Vice President of Marketing and Corporate Communications. “Between booking activities to keep children entertained, steep gas prices and food and beverage, the costs of vacation close to home can add up quickly. When you opt for an all-inclusive, resort-based vacation down south, food and entertainment options are often included, meaning that your travel budget goes much further.”As part of the sale, clients can book a wide variety of resorts including the family-friendly Grand Princess All Suites and Spa Resort in Riviera Maya, which offers a kids club, water sports and the Platinum Club. There’s also the Riu Negril in Jamaica, recently renovated and home to a kids pool with water slides, kid-friendly dining options and RIU-topia inclusions like unlimited reservation-free dining at specialty restaurants, spa credits and complimentary Wi-Fi.All Sunwing vacation packages include return flights on Sunwing Airlines. Sunwing’s latest 737 MAX update, plus new ‘Countdown to Summer Sale’ Monday, June 17, 2019 Travelweek Group Tags: Boeing 737 MAX, Sunwing << Previous PostNext Post >>
Category: fnuolivahycpuibq 05 pay increase approved for minimumwage workers in private sector
Private-sector workers making minimum wage will receive a 0.5 percent hike starting July 1.The National Wages Council, which includes representatives from the government, employers chambers and labor unions, agreed on the figure Wednesday evening after a negotiation that extended for over three hours at the Labor Ministry.Labor Minister Carlos Alvarado proposed the agreed-upon figure, which represents an increase of ₡500 ($0.91) per every ₡100,000 ($182) of monthly salary.According to Costa Rica’s labor laws the wage hike is only mandatory for workers who receive the minimum wage at their job category.In addition, the Wages Council approved a 2 percent increase for monthly salaries of domestic workers.Council members unanimously passed the government’s proposal of 0.5 percent, after rejecting various workers’ unions requests ranging from 2.13 to 3.5 percent.Employers’ proposal of 0 percent also was rejected. Employers’ chambers claimed there were no grounds to increase wages as inflation recorded in the last 12 months was -0.43 percent, “meaning real wages actually grew during that period,” they said.Council President Dennis Cabezas, who represents workers’ unions, noted that the approved hike is the lowest of the past three years.“People feel that macroeconomic indicators do not keep a correct relation with their daily expenses,” Cabezas said. He added that it is contradictory that officials report a negative inflation figure but people feel their salary buys fewer things every month.The National Workers Union stated in a public release that the approved increase is insufficient and will have a negative impact on the country’s working class.Employers’ chambers leaders responded by saying they approved the wage hike even though the calculation formula supported their proposal of not doing any increase.Franco Pacheco, leader of the Union of Private-Sector Chambers and Associations, said he accepted the government’s proposal mostly to promote dialogue and reach agreements between the sectors.Last year the Wages Council approved a 0.67 percent hike for the private sector that went into effect in January.Changes in wage calculation formulaMinister Alvarado said that the National Wages Council also approved a proposal to review the calculation formula used to set wage increases, as the country’s economic context has changed.Alvarado said council members unanimously approved the review, which should be completed within three months.Council members use a calculation formula that takes into account the projected inflation for the next semester, plus a compensatory adjustment consisting of the difference between that projected inflation and the inflation recorded the previous semester.According to the National Statistics and Census Institute, private-sector workers represent 85 percent of the country’s total workforce, estimated at 2.06 million people.Minimum wage in Costa Rica varies by profession and job category. See the full list of minimum wages in force for the first semester of this year here. Facebook Comments Related posts:Salary increase for private sector set at 1.14 percent Private-sector employers offer 0.94 percent wage increase for second half of 2015 Salary increase for private sector set at 2.01 percent Is Costa Rica’s gender wage gap really among the world’s lowest?