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Kanesatake community at odds with council

first_imgAPTN National NewsA public meeting was planned for Wednesday night in Kanesatake to discuss the current council.A referendum was held last month asking people whether they supported the grand chief or an opposition group of chiefs.That referendum didn’t seem to accomplish much.APTN’s Danielle Rochette has the story.last_img

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Jamaicans Urged Not To Relax Against The Mosquito

first_imgFacebook Twitter Google+LinkedInPinterestWhatsAppKINGSTON, Aug. 4 (JIS): The Ministry of Health is urging members of the public to take precautionary measures to prevent vector borne diseases by adopting several simple practices to reduce the mosquito population.Due to the drought conditions being experienced across the island, the widespread use of water storage containers act as breeding sites that have the potential to increase the mosquito population. Health Minister, Hon. Dr. Fenton Ferguson, says vector borne diseases are on the rise globally, which puts Jamaica at risk.“The prevalence of vector borne diseases has been on the rise, with estimates indicating that the number of cases of dengue, for example, has increased 30 fold over the last 50 years. This is of great concern because some of the diseases that now threaten the health of the region of the Americas, including Jamaica, are those which are transmitted in the same way as the Dengue virus,” he noted.The Aedes aegypti mosquito, which is commonly found in every parish across the island, is the vector through which Dengue, Malaria, Chikungunya, and the Zika viruses are transmitted.At a recent meeting with local government officials in Kingston, Dr. Ferguson said a national approach to vector management is needed to reduce the mosquito population.“Control strategies focusing on source reduction are crucial. These involve the removal of larval/pupal habitat from the environment, or targeting the immature stages of the mosquito,” he said. Dr. Ferguson outlined several measures to control and reduce the breeding of mosquitoes, such as preventing water from settling in shallow areas and in containers; and filling shallow depressions in the ground, where water may settle, with soil or sand. In the case of water storage containers, the Ministry recommends covering or punching holes in the containers. Cooking oil can also be poured on the surface of water in water storage containers to prevent mosquitoes from laying their eggs.Other measures include: regular cleaning of containers where water is stored to prevent mosquito larvae from maturing; and the proper disposal of containers. Persons are also encouraged to use Abate larvicide to prevent the breeding of mosquitoes.The Ministry is urging persons to protect themselves against infection of vector borne viruses by using insect repellents containing DEET, mosquito nets and destroyers. Screens should also be installed on windows and doors. Facebook Twitter Google+LinkedInPinterestWhatsApp Related Items:Aedes aegypti mosquito, Chikungunya, Dengue, Malaria, zika virus CANADIAN GOVERNMENT ADDS CARICOM NATIONS TO WATCH LIST Airliners spraying for Zika prevention; Zika impacting tourism arrivals Recommended for you MORE THAN PREGNANT WOMEN need to be concerned about Zikalast_img read more

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Catalans protest for separatists release

first_imgPeople hold banners reading `Freedom` and wave Catalan pro-independence `Estelada` flags during a demonstration in Barcelona calling for the release of jailed separatist leaders. Photo: AFPHundreds of thousands of Catalans marched Saturday to demand the release of regional officials jailed for their push for independence from Spain, which has left the country mired in a political crisis.The more than two-hour long protest in Barcelona, the Catalan capital, came a day after the region’s parliament speaker-one of dozens of lawmakers sacked by Madrid last month-was released from jail after posting 150,000 euros ($175,000) bail.The demonstrators gathered on an avenue next to the regional parliament building waving Catalan independence flags and chanting “Freedom!” while some held up banners announcing: “SOS Democracy”.Children in riding helmets climbed castells-the region’s traditional human towers-as others held placards bearing caricatures of some jailed lawmakers.Barcelona municipal police put turnout for the march at some 750,000 people as crowds stretched for more than 15 blocks along the boulevard.The Catalonia crisis has caused concern in the European Union as the bloc deals with Brexit and uncertainty over the fate of the region’s 7.5 million people. More than 2,400 businesses have moved their legal headquarters elsewhere.On Wednesday a general strike called by a pro-independence union caused travel chaos, blocking 60 roads and train lines including Spain’s main highway link to France and the rest of Europe.Since lawmakers in Catalonia-a wealthy region with its own language and distinct culture-declared independence on October 27 following a banned referendum, pro-separatist officials have come under huge pressure from Madrid.The central government has dismissed Catalan leader Carles Puigdemont, his government and the parliament, suspended the region’s autonomy and called for new elections there on December 21.Barcelona’s popular mayor earlier slammed the actions of Puigdemont’s government.“They’ve provoked tensions and carried out a unilateral independence declaration which the majority do not want,” Ada Colau told a meeting of her party members.“They’ve tricked the population for their own interests.”Eight members of the axed Catalan cabinet are currently detained on charges of sedition, rebellion and misuse of public funds.A further six fired officials including parliament speaker Carme Forcadell were granted bail this week on similar charges by Spain’s Supreme Court.Puigdemont is in self-imposed exile in Belgium awaiting a hearing on possible extradition back to Spain after Madrid issued an EU-wide warrant.“The situation is sad, the politicians haven’t done their jobs,” said Robert Muni, who was protesting with his children, although some protesters shouted their support for Puigdemont, “our president”.‘We want freedom’Puigdemont and four ex-ministers say they are in Brussels because they cannot be guaranteed a fair trial back home.“Although some of us are far away from you and others are in prison, we have an opportunity to express loudly and clearly that we want freedom and democracy,” Puigdemont told Catalan television.Saturday’s protest was organised by two pro-independence lobby groups, ANC and Omnium, whose two leaders are also detained.“We don’t know what’s going to happen but we know what we want: the release of political prisoners,” said demonstrator Maria Angels Quintana.Puigdemont has said he travelled to Brussels after declaring independence in order to raise international awareness on the treatment of separatists in Spain.But the European Union, nervous that Catalan independence could stir up separatist tensions in several member states, has repeatedly backed the government of Prime Minister Mariano Rajoy over the crisis.Some participants at the rally betrayed their frustration at the lack of support from Brussels for their cause, holding banners printed in English asking “Europe, where are you?”Rajoy himself will be in Barcelona on Sunday-his first visit to Catalonia since the independence crisis erupted-to show support for his Popular Party candidates in next month’s vote.last_img
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Physicists find quantum coherence and quantum entanglement are two sides of the

first_img More information: Alexander Streltsov, et al. “Measuring Quantum Coherence with Entanglement.” Physical Review Letters. To be published.Also at arXiv:1502.05876 [quant-ph] Journal information: Physical Review Letters Close relatives with the same rootsAlthough physicists have known that coherence and entanglement are close relatives, the exact relationship between the two resources has not been clear. It’s well-known that quantum coherence and quantum entanglement are both rooted in the superposition principle—the phenomenon in which a single quantum state simultaneously consists of multiple states—but in different ways. Quantum coherence deals with the idea that all objects have wave-like properties. If an object’s wave-like nature is split in two, then the two waves may coherently interfere with each other in such a way as to form a single state that is a superposition of the two states. This concept of superposition is famously represented by Schrödinger’s cat, which is both dead and alive at the same time when in its coherent state inside a closed box. Coherence also lies at the heart of quantum computing, in which a qubit is in a superposition of the “0” and “1” states, resulting in a speed-up over various classical algorithms. When such a state experiences decoherence, however, all of its quantumness is typically lost and the advantage vanishes.The second phenomenon, quantum entanglement, also involves superposition. But in this case, the states in a superposition are the shared states of two entangled particles rather than those of the two split waves of a single particle. The intrigue of entanglement lies in the fact that the two entangled particles are so intimately correlated that a measurement on one particle instantly affects the other particle, even when separated by a large distance. Like coherence, quantum entanglement also plays an essential role in quantum technologies, such as quantum teleportation, quantum cryptography, and super dense coding. Converting one to the otherIn a paper to be published in Physical Review Letters, physicists led by Gerardo Adesso, Associate Professor at the University of Nottingham in the UK, with coauthors from Spain and India, have provided a simple yet powerful answer to the question of how these two resources are related: the scientists show that coherence and entanglement are quantitatively, or operationally, equivalent, based on their behavior arising from their respective resource theories. © 2015 Phys.org Explore further Physicists show ‘quantum freezing phenomenon’ is universal 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. The physicists arrived at this result by showing that, in general, any nonzero amount of coherence in a system can be converted into an equal amount of entanglement between that system and another initially incoherent one. This discovery of the conversion between coherence and entanglement has several important implications. For one, it means that quantum coherence can be measured through entanglement. Consequently, all of the comprehensive knowledge that researchers have obtained about entanglement can now be directly applied to coherence, which in general is not nearly as well-researched (outside of the area of quantum optics). For example, the new knowledge has already allowed the physicists to settle an important open question concerning the geometric measure of coherence: since the geometric measure of entanglement is a “full convex monotone,” the same can be said of the associated coherence measure. As the scientists explained, this is possible because the new results allowed them to define and quantify one resource in terms of the other.”The significance of our work lies in the fact that we prove the close relation between entanglement and coherence not only qualitatively, but on a quantitative level,” coauthor Alex Streltsov, of ICFO-The Institute of Photonic Sciences in Barcelona, told Phys.org. “More precisely, we show that any quantifier of entanglement gives rise to a quantifier of coherence. This concept allowed us to prove that the geometric measure of coherence is a valid coherence quantifier, thus answering a question left open in several previous works.”While the results show that coherence and entanglement are operationally equivalent, the physicists explain that this doesn’t mean that are the exact same thing, as they are still conceptually different ideas. “Despite having the same roots of origin, namely quantum superposition, coherence and entanglement are conceptually different,” said coauthors Uttam Singh, Himadri Dhar, and Manabendra Bera at the Harish-Chandra Research Institute in Allahabad, India. “For example, coherence can be present in single quantum systems, where entanglement is not well-defined. Also, coherence is defined with respect to a given basis, while entanglement is invariant under local basis changes. In all, we believe coherence and entanglement are operationally equivalent but conceptually different.” Future quantum connectionsThe operational equivalence of coherence and entanglement will likely have a far-reaching impact on areas ranging from quantum information theory to more nascent fields such as quantum biology and nanoscale thermodynamics. In the future, the physicists plan to investigate whether coherence and entanglement might also be interconverted into a third resource—that of quantum discord, which, like entanglement, is another type of quantum correlation between two systems.”Our future plans are diverse,” Adesso said. “On the theoretical side, we are working to construct a unified framework to interpret, classify and quantify all different forms of quantum resources, including and beyond entanglement and coherence, and highlight the interlinks among them from an operational perspective. This will allow us to navigate the hierarchy of quantumness indicators in composite systems with a common pilot, and to appreciate which particular ingredients are needed in various informational tasks. “On the practical side, we are investigating experimentally friendly schemes to detect, quantify, and preserve coherence, entanglement and other quantum correlations in noisy environments. More fundamentally, we hope these results will inspire us to devise scalable and efficient methods to convert between different quantum resources for technological applications, and bring us closer to understanding where the boundaries of the quantum world ultimately lie in realistic scenarios.” (a) Input states that are fully incoherent (S and A) cannot be converted to entanglement via incoherent operations. (b) On the other hand, when the input state of S has any nonzero coherence, the coherence can be converted to entanglement via incoherent operations. The new results show that, in such a scenario, the input coherence and the output entanglement are quantitatively equivalent. Credit: Streltsov, et al. Citation: Physicists find quantum coherence and quantum entanglement are two sides of the same coin (2015, June 25) retrieved 18 August 2019 from https://phys.org/news/2015-06-physicists-quantum-coherence-entanglement-sides.html (Phys.org)—Quantum coherence and quantum entanglement are two landmark features of quantum physics, and now physicists have demonstrated that the two phenomena are “operationally equivalent”—that is, equivalent for all practical purposes, though still conceptually distinct. This finding allows physicists to apply decades of research on entanglement to the more fundamental but less-well-researched concept of coherence, offering the possibility of advancing a wide range of quantum technologies.last_img read more