Diana Shipping Inks Charter Deal with Ausca

first_imgzoomIllustration. Source: PxHere under CC0 Creative Commons license Greek dry bulk owner Diana Shipping has entered into a time charter contract with Hong Kong-based Ausca Shipping Limited for one of its Panamax dry bulk vessels.Under the deal, the company’s 73,593 dwt Arethusa was scheduled to start working for Ausca Shipping on May 2 at a gross charter rate of USD 9,150 per day.The charter contract for the 2007-built unit was signed for a period of twelve to fifteen months.Diana Shipping said that the employment is expected to generate around USD 3.29 million of gross revenue for the minimum scheduled period of the time charter.The vessel was previously chartered by Rotterdam-based Glencore Agriculture at a rate of USD 12,600 per day.last_img

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UK HC allows Mallya to appeal against his extradition

first_imgLondon: In a reprieve to embattled liquor tycoon Vijay Mallya, the UK High Court Tuesday allowed him to appeal against his extradition order signed off by the UK home secretary Sajid Javid to face alleged fraud and money laundering charges amounting to Rs 9,000 crores in India.A two-member bench of the Royal Courts of Justice comprising Justices George Leggatt and Andrew Popplewell made the conclusion after hearing the arguments. The bench said that the arguments can be reasonably made on some of Westminster Magistrates’ Court Chief Magistrate Judge Emma Arbuthnot’s conclusions in her prima facie case ruling. Also Read – How a psychopath killer hid behind the mask of a devout laity!The High Court judges ruled that the 63-year-old former Kingfisher Airlines boss was permitted to appeal on only one limited ground to be able to address the admissibility of some of evidence and interpretations made by the lower court. They have given directions to submit a draft for the appeal to proceed and ascertain the time frame for the hearing. Ahead of the hearing, Mallya told reporters outside the court that he was feeling “positive”. Representatives from the Indian High Commission in London were present in court to observe the proceedings. Also Read – Encounter under way in Pulwama, militant killedMallya, accompanied by his son Sidharth and partner Pinky Lalwani, watched from the bench as his barrister Clare Montgomery began by reiterating many of her arguments laid out during the extradition trial at Westminster Magistrates’ Court last year and characterised aspects of Chief Magistrate’s ruling as “plain wrong”. She claimed to have “chased down” and countered many of the claims in the case put forward by the Indian authorities and dismissed the conclusion that there was a “clear and unequivocal false statement” made by Mallya about profits being made by a struggling Kingfisher Airlines at the time the loans were being sought. “The conclusions are in effect a false dichotomy [Arbuthnot] failed to recognise that there was a straightforward business failure,” said Montgomery, as she claimed the case presented by the Indian authorities had moved on in essence from that ruled upon by the lower court. She also questioned the admissibility of many witness statements and once again highlighted the badly paginated documents submitted by the government of India in the extradition case. The judges made a few interventions to indicate that the offence for which Mallya is wanted by the Indian justice system is not materially different between English and Indian law. “Your starting point is that the judge [Arbuthnot] has made findings of a prima facie case on allegations that you haven’t had a chance to answer,” noted Judge Leggatt, in an early observation on the grounds for the appeal. PTIlast_img read more

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Global Governance Sovereignty Foundation Launches in Rabat

By Alexandra GrittaRabat – The Global Governance & Sovereignty Foundation (GGSF) hosted a launching conference on Monday in Rabat. The brand new think tank hosted under the theme, “Sovereignty and Globalization: Which Model of Development for the African Continent?” According to a press release provided to Morocco World News, the event was designed to explore “the best strategy for achieving a structural transformation essential to consolidate the growth of African countries” through constructive debate. The event also sought to bring together “stakeholders to discuss issues of interest and strengthens a network of researchers, experts, and representatives of public and private sectors to provide innovative solutions and strategic foresight.”African ambassadors to Morocco, experts, researchers, representatives of public and private institutions, representatives of international and regional organizations, and representatives of international development agencies were in attendance.Participants discussed four major topics: regional economic communities and ECOWAS, regional integration organizations and CEMAC, issues surrounding ZLEC (Continental Free Trade Area), and the role of African media in regional integration.Global Governance & Sovereignty Foundation is a “non-profit operating think tank that promotes comprehensive research and accurate practices through a global perspective.” read more

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UN expert highlights need for sustained action to promote human rights in

In opening the annual debate on the situation of human rights in Iraq in the UN Commission on Human Rights, Special Rapporteur Andreas Mavrommatis stressed that since “war, with all its horrors” had begun, there is now an “imperative necessity” for continued action to promote human rights in Iraq, and eventually, to ensure the effective application of civil, political, economic, social and cultural rights for the future.”This presupposes an adequate UN human rights presence in Iraq which, in cooperation with the authorities, could assist in the gradual attainment of full compliance with international human rights norms,” said Mr. Mavrommatis. While it might seem inappropriate to talk about the future while people are being killed, he added, it was crucial to redouble UN efforts to secure the fundamental freedoms of the Iraqi people.”Our thoughts are with Iraqi civilians, especially innocent women and children who have already suffered so much in the past,” the Rapporteur said, stressing that the international community now expected the war to end at the “soonest and that events such as the carnage in the market place of Baghdad would not occur again.”Emphasizing that respect for the right to life enjoined combatants to abort the process when the targeting of “assets” entails foreseeable risks to civilians, Mr. Mavrommatis echoed Secretary-General Kofi Annan’s call that parties should scrupulously observe international humanitarian law and shield the civilian population from the consequences of war.Although the events in Iraq forced him to postpone his second substantive visit to Iraq, Mr. Mavrommatis said he would continue dealing with information regarding serious allegations of human rights violations, including assisting in the process of tracing and accounting for Kuwaiti prisoners of war and missing persons, other missing persons including Iraqis, and the issue of people expelled or forced to relocate.He reiterated his determination to deal with all human rights questions in full cooperation with the authorities, without prejudging any issue, and with the main intention being to ensure the enjoyment of human rights by all the Iraqi people without fear, favour or discrimination. read more

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Former Clemson QB Kelly Bryant headed to Missouri

CLEMSON, S.C. — Former Clemson starting quarterback Kelly Bryant says he’ll play his final season at Missouri.Bryant released a video on social media that ended with a player in a Missouri uniform and fans chanting “M-I-Z” for its nickname “Mizzou.”Bryant had visited several schools after he announced his transfer from Clemson because he was demoted as starting quarterback behind freshman Trevor Lawrence. Others he met with included Arkansas, Auburn, Mississippi State and North Carolina.The 6-foot-3, 225-pound Bryant helped Clemson win an Atlantic Coast Conference title and reach the College Football Playoff in 2017. He started the first four games for Clemson this season before Lawrence took the starting job. Bryant was 16-2 as Clemson’s starter. He threw for 3,263 yards, 15 touchdowns and nine interceptions the last two seasons.___More AP college football: https://apnews.com/Collegefootball and https://twitter.com/AP_Top25The Associated Press read more

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Laser beams could be used to protect sheep from sea eagles

first_imgA sea eagle apparently carrying a lambCredit:Deadline News Sea eagles are considerably larger than golden eaglesCredit:Deadline News The rare raptors are have been the subject since 1975 of a successful, but controversial, reintroduction programme in different parts of Scotland, most recently on the east coast. He added that if the laser trial was successful it could be rolled out under licence to other areas where the birds were causing problems.Farmers and crofters in areas including the Isle of Skye and the Gairloch peninsula have complained of the birds killing lambs and larger ewe hoggs (sheep up to 18 months old).Last May, a photograph emerged of a sea eagle carrying a new born lamb in its talons as it flew over the village of North Connel in Argyll. Laster beams could be shone on to Highland hillsides in a bid to protect flocks of sheep from Britain’s biggest bird of prey.The technology is to be trialled in Argyll in an area where crofters and farmers have repeatedly complained that Scotland’s white-tailed sea eagles are taking their livestock.The unusual move will be tried along with other measures, including cutting down trees close to one lambing area in a bid to stop the huge raptors nesting in them and preying on lambs.The conservation agency Scottish Natural Heritage said the trials would be “carefully monitored”, with lasers being shone on to the hills and not directly at birds.David Colthart, a farmer and member of the Argyll and Lochaber Sea Eagle Stakeholder Group, said not all sea eagles were a problem but some did prey on lambs. sea eagle Want the best of The Telegraph direct to your email and WhatsApp? Sign up to our free twice-daily  Front Page newsletter and new  audio briefings. sea eagle Ross Lilley, SNH’s sea eagle project manager, said the “serious concerns” of some farmers and crofters about the impact of sea eagles on livestock had been acknowledged.He added: “At this point, no trials on laser-scaring deterrents for sea eagles have been undertaken.”They are under consideration along with other options. A carefully monitored trial will be critical to make sure lasers are a safe and effective method before we proceed any further.”A report in 2016 predicted the number of sea eagles was likely to reach around 220 pairs by 2025, with potential for a much larger population by 2040. Sea eagles became extinct in the UK in 1916, largely due to persecution.last_img read more

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Is Sonys PlayStation Network rebranding really necessary

first_imgAs device manufacturers eye the living room as the next great uncharted frontier (with an increasing nervousness about Apple’s impending TV set), they look for any “in” that they already have. Video game consoles provide as good of an entryway to the living room as there is.We’ve already seen Microsoft expand the Xbox 360 software to include some TV integration, including voice control. Now Sony is preparing to make a similar shift, by transforming the PlayStation Network  (PSN) into a full-fledged entertainment suite. To match that change, it will soon be rebranded as the Sony Entertainment Network.The kicker is, the PlayStation Network is already an entertainment suite. In addition to playing and purchasing games, you can already rent and buy movies, stream music, and watch Netflix and Hulu Plus.Why would Sony bother? Apparently it thinks that the moniker “PlayStation Network” has too many associations that aren’t working to its benefit. In addition to its longstanding association with video games, it also reminds people of the company’s great PR disaster of 2011. That’s when the PSN was hacked, passwords and credit card information was stolen, and Sony had to pay millions of dollars in identity theft insurance, free games, and months of free premium access.It’s understandable why Sony would make this move, but is it worth it? On the one hand, you’re stating “this isn’t just video games anymore, it’s a full-fledged entertainment suite.” But you’re also foregoing an established househould name in favor of a new brand that isn’t familiar. Additionally, outside of Netflix and Hulu Plus apps on various TV platforms, smart TV hasn’t really taken off. Manufacturers are assuming that Apple will storm in with its iTV, help to create the next big thing, and they will all ride Tim Cook’s coattails into the promised land.That’s making lots of assumptions though. First, Apple’s TV set is completely unconfirmed. It could be a product that doesn’t hit the market for another year or two (content deals could throw a wrench into the works). When it does launch, who’s to say that these other TV sets will fare any better next to it than Android tablets have next to the iPad?This integrated living room fever among manufacturers reeks of a desperation to not be beaten again by Apple. Instead of obsessing about your competition’s next move, why not find your own unique brand of innovation and design, and evolve that through the years? That’s what Apple did in the late 90s and early 2000s, and it has worked out pretty well.last_img read more

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Seagate starts shipping a 5mm thick 500GB hard drive

first_imgThe future of storage in ultra-thin portable devices such as Ultrabooks is clearly SSDs, but the major storage companies haven’t given up on traditional hard drives just yet. Back in April, Western Digital shipped a 5mm thick 500GB hard drive, and now Seagate is doing the same to offer up some healthy competition in the form of the Laptop Ultrathin hard drive.There doesn’t seem to be much differentiating the UltraSlim Western Digital and new Seagate drives. They are both the same size, offer the same amount of storage, and prices start at $89. That makes them significantly cheaper than an SSD, albeit slower and more power hungry. But even with that being the case, both Asus and Dell have apparently already placed orders for the new drives for use in laptops and tablets.One area of the drives where Seagate and Western Digital do differ, however, is in the connectors used. WD opted for a new integrated connector that combines power and data transmission. Seagate on the other hand is sticking with the more traditional SATA connection and separate power connector. That should make it easier to use the drive with existing hardware designs, albeit at the cost of an extra cable.The space and cost saving a 5mm hard drive offers should enable lower-end laptops and budget Ultrabooks to get a little thinner. Alternatively, battery capacity could be increased, and hopefully that’s the route taken by most vendors. I think for the most part laptops and Ultrabooks are thin enough, we just want to be able to use them for longer away from a power outlet.last_img read more

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Les chimpanzés savent identifier les besoins dun congénère

first_imgLes chimpanzés savent identifier les besoins d’un congénèrePubliant leurs travaux dans PNAS, des chercheurs japonais ont prouvé expérimentalement que des chimpanzés, sollicités par un congénère, sont capables, comme le font les humains, d’identifier les besoins de celui-ci et de lui donner l’outil adéquat.  Des chercheurs de l’Université de Kyoto ont mis en place des expériences comportementales pour évaluer la capacité des chimpanzés à s’aider l’un l’autre. Première expérience : deux de ces primates ont été placés dans deux salles contiguës séparées par une cloison opaque, l’un avec une tâche à accomplir mais sans les outils nécessaires, le second disposant de ces outils (7 au total). À lire aussiMaladie de Charcot : symptômes, causes, traitement, où en est on ?Résultat : le premier singe a bien sollicité de l’aide à son voisin en tapant sur la paroi de séparation et en tendant la main à travers un trou ménagé à travers celle-ci. Or, bien que celui-ci ne pouvait connaître le besoin exact de son congénère, le second lui a fourni un à un tout l’assortiment d’outils. Une preuve déjà remarquable de solidarité. Dans un deuxième temps, l’expérience a été répétée, les deux animaux étant cette fois-ci séparés par une cloison transparente leur permettant de s’observer mutuellement. Dans la plupart des cas, le primate détenteur des outils a su sélectionner et donner au singe ‘bricoleur’, parmi tous les objets disponibles – qu’il a examinés – celui qui était approprié. Cette aide ciblée implique que le sujet disposant des outils a été à même de se faire une représentation des besoins de l’autre : c’est un des aspects de la théorie de l’esprit, déjà connue des psychologues (chez l’homme), que les éthologues viennent de mettre en lumière chez le chimpanzé.   Le 12 février 2012 à 09:44 • Maxime Lambertlast_img read more

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Sex offenders say island water makes them sick

first_imgMCNEIL ISLAND, Wash. (AP) — Scores of sex offenders ordered to live on a secluded island in Washington state say the often cloudy, brown water there is making them sick, and records show the water system has been plagued by problems for more than a decade.About 200 residents of the Special Commitment Center have filed a federal lawsuit alleging that the facility is violating their rights by forcing them to drink contaminated water that causes stomach pain and skin rashes and has been blamed for unexplained deaths.The executive who oversees the center says the water turns brown periodically when the pipes are flushed, and he insists the cloudiness is only an aesthetic effect that causes no harm. But an Associated Press review of state Department of Health records shows that the water has repeatedly exceeded standards for various chlorine-related chemicals and has been cited for violations dating back to 2006.Health reports say the facility’s water treatment plant has been “on the verge of failure” since 2013, and a former plant operator told health officials in 2015 that the water’s cloudiness readings were being manipulated to make the water look cleaner than it was.J.D. McManus, who has lived at the center southwest of Seattle since 2001, said his friends on McNeil Island in south Puget Sound have contracted diseases from the water and he has suffered ill effects such as developing hives after taking a shower.last_img read more

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High water bills result in changes at San Diego Public Utilities Department

first_img March 9, 2018 Posted: March 9, 2018 , High water bills result in changes at San Diego Public Utilities Department 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 SettingsThe San Diego Public Utilities Department is making some changes after customers reported outrageously high water bills.Employees will be re-trained and new customer service staff will be added to several departments. This was announced in a public hearing meeting with the PUD hosted by Councilmember David Alvarez. The city’s environmental committee is still investigating and working to fix the issue.Deputy Director of the San Diego Public Utility, Brent Eidson, joined Good Morning San Diego this morning to give us a better understanding of this billing issue and what’s being done to fix it. Updated: 11:33 AM Categories: Local San Diego News FacebookTwitterlast_img read more

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Leavitts lead dips slighty in Vancouver mayoral race

first_imgVancouver City Councilman Bill Turlay on Wednesday wasn’t ready to give up hopes of unseating Mayor Tim Leavitt, whose lead narrowed by 55 votes. “Looks like it’s a pretty steep hill to climb, but we haven’t given up yet,” Turlay said. Leavitt led Turlay by 1,406 votes Election Night. After 3,300 more ballots in the race were tabulated on Wednesday, Leavitt had a 1,351 vote edge. The latest returns show Leavitt with 52.6 percent to Turlay’s 46.7 percent. To win, Turlay would need roughly three out of every five outstanding ballots to go his way. About 6,700 ballots remain to be counted in the Vancouver race.The additional 10,161 ballots countywide tallied by election workers Wednesday didn’t sway margins much in other races, either. The new vote total raises turnout to 27.48 percent. About 24,000 ballots remain to be tallied countywide. Vancouver Councilman Jack Burkman maintained his lead over Micheline Doan, 52.27 percent to 47.27 percent. Political newcomer Alishia Topper, development director for the Fort Vancouver National Trust, remained ahead in her race to unseat Councilwoman Jeanne Stewart, 52.26 percent to 47.26 percent. Council candidate Anne McEnerny-Ogle continued to lead her opponent, Frank Decker, 57.18 percent to 42.42 percent.last_img read more

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TS EAMCET web options process to begin tomorrow

first_imgThe web option process in Telangana for seat allotment in engineering colleges will begin tomorrow. The students are advised to choose the web options until June 8, 2019. Though the TAFRC announced the fee structure for the colleges, the government has to issue a GO approving it. The GO is expected to release today if not the colleges are told to continue the counselling process by announcing a temporary fee structure. Also Read – Secunderabad: Major General N Srinivas Rao makes farewell visit to AOC Advertise With Us However, the GO will be issued and the fees will be confirmed by the colleges before the start of the fee payment process. On Thursday, the TAFRC fixed the fee structure for 103 colleges and a meeting was held on the same day. TSCHE chairman Papireddy, education secretary Janardhan Reddy and EAMCET convenor Naveen Mittal attended the meeting.last_img read more

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Reliance Jio 4G service Low 3G subscriber base could hit growth

first_imgReliance Jio, the telecom arm of Mukesh Ambani-owned Reliance Industries, is all set for a limited formal launch of its 4G services on 27 December, coinciding with the Group’s founder Dhirubhai Ambani’s 83rd birth anniversary.The largest holder of 751MHz spectrum in India, Reliance Jio will be offering free 4G connections and Voice over LTE (VoLTE)-enabled handsets at discounted rates to Reliance Group employees on a trial basis, while the commercial launch is expected later, around April-May next year.”We are happy to share that we will unveil Jio to our colleagues first, on the eve of our founder chairman’s birth anniversary,” said the invitation emailed to the group’s more than 20,000 employees from Chairman Mukesh Ambani and wife Nita Ambani, reported The Economic Times.The launch will feature a programme by Shah Rukh Khan and A R Rehman.But Reliance Jio may be premature in terms of rolling out 4G services even if it is by April next year, if the low subscriber base for 3G services is any indication.The number of subscribers with 3G connection is at a low 9%, or 93 million, out of a subscriber base of 981 million. The top five circles are Mumbai, Delhi, Kerala, Karnataka and Tamil Nadu, out of 22 circles, said BusinessLine, referring to a CLSA report.Bharati Airtel and Vodafone have a dominating position in the five circles. These are the subscribers who are predominantly expected to migrate to 4G services.The adoption of 3G services is likely to pick up, but gradually, according to an analyst at EY. “I don’t think the penetration is low as 3G is in the process of evolving,” said Prashant Singhal, telecom leader at the consultancy firm.On the positive side, the higher average revenue per user (ARPU) of 3G subscribers augurs well for Reliance Jio, which is rolling out its 4G services, as these subscribers are likely to adopt it, giving the company an edge over rivals Bharati Airtel and Vodafone. The ARPU of 3G subscribers in the five circles was Rs 225, according to the CLSA report.Bharti Airtel launched its 4G services in August this year.The total revenues of telecom service providers stood at Rs 28,819.48 crore for the quarter ending September, 2015, down 2% from Rs 29,914.99 crore in the April to June quarter, according to the Cellular Operators of India (COAI).Bharti Airtel reported revenues of Rs 10,921.35 crore, followed by Vodafone at Rs 8,185 crore. Idea Cellular grossed Rs 6,857.80 crore.The ARPU also saw a decline of 3.9%, from Rs 138.03 in the April-June quarter to Rs 132.63 in the September quarter.last_img read more

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Road crash kills Rangpur LGED additional chief engineer

first_imgRoad Accident LogoThe additional chief engineer of Rangpur division Local Government Engineering Department (LGED) was killed in a road accident on Dinajpur-Gobindaganj highway on Thursday morning.The deceased is Afzal Hossain, 59.Afzal was killed on the spot after the vehicle carrying him hit a roadside tree in Uchitpur area of Dinajpur around 10:00am, Birampur upazila engineer Mahmud Zaman told Prothom Alo.Details of the incident are yet to be known.last_img

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Dhaka road crash kills woman

first_imgRoad accident illustration by Prothom AloA woman was killed in a road accident at Signboard area in Jatrabari on early Saturday while taking her newborn great-granddaughter home.The victim was identified as Halima Begum, 60. She hailed from Murma village of Munshiganj sadar upazila, reports UNB.Police said Halima and her son Habibur Rahman had gone to Sylhet to bring her granddaughter and newborn great-granddaughter home.They reached Signboard area around 4am and were waiting in front of a petrol pump for another vehicle to travel to Munshiganj when Halima was hit by a passenger bus around 4:15am.She was taken to Dhaka Medical College Hospital but succumbed to her injuries around 5am, said sub-inspector Jahirul Islam of Jatrabari police station.A police team was near the petrol pump when the accident took place. Jahirul said they seized the bus and detained its driver from the spot.last_img read more

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Can a Smart Headband Cure Depression

first_img FDA Approves First New Major Depression Drug in DecadesScientists Uncover 124 New Genes Associated With Neuroticism Stay on target As of 2015, South Korea had the fourth-highest suicide rate globally, according to the World Health Organization (WHO).But social stigmas associated with depression and mental illness—the leading causes of self-inflicted death—often keep people from seeking treatment.Not for much longer, though, if local startup Ybrain is successful.Based in the Seoul Capital Area, the firm creates wearable technology “to diagnose and treat neuropsychiatric disorders.” It made headlines in 2014 when it raised $3.5 million to focus on health care wearables.Ybrain has since created a treatment device for migraines and a diagnosis support device—both currently in development. Now, it’s working on a new gadget designed for people suffering major depressive disorder.As reported by The Korean Herald, the Mindd wearable headband uses transcranial direct current stimulation (tDCS) to deliver a stream of electricity to the frontal lobe. Users feel a tingling sensation as the electric waves pass through their head to the area of the brain where decreased activity is associated with depression.Ybrain’s Mindd wearable (via Park Hyun-koo/The Korea Herald)Lightweight (only 150 grams) and portable, Mindd is ideal for outpatients, who can continue the hospital treatment in the comfort of their own home.“Though we’ve begun by deploying our device at only hospitals for now, our broader goal is to help anyone with depression easily receive treatment from home and to eventually raise depression treatment rates around the world,” CEO Lee Ki-won (pictured), a former researcher at Samsung Electro-Mechanics, told the Herald.Users can also track activity levels and sleep patterns with a connected smartphone app, which automatically shares collected data with the doctor. Try doing that with a bottle of Lexapro, Prozac, or Zoloft.Already deployed in a dozen South Korean hospitals, the Mindd is expected to reach another 150 this year, with the aim of treating at least 3,000 people. An upgraded dry-type model (which uses hydrogel material instead of a saline-soaked pad) is also in the works.Hoping to take its technology global, Ybrain is working with the Harvard Medical School on a 500-person clinical study, which uses Mindd.last_img read more

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Hydroxyl radicals speed up zeolite formation

first_img Explore further Journal information: Science Researchers from Jilin University in China have elucidated a part of the mechanism of zeolite crystallization and have demonstrated that forming hydroxyl radicals (•OH) using UV irradiation produces highly crystalline zeolites in less time than typical syntheses because it speeds up the nucleation process. Their work appears in Science.Upon baking an alumino-silicate species, in varying proportions in a strong base and in the presence of a cation, researchers are able to make many types of zeolite structures. Feng, et al. wanted to see how the formation of hydroxyl radicals would affect zeolite synthesis. They first compared Na2O-Al2O3-SiO2-H2O systems made under UV conditions and under typical conditions, or what they call “dark conditions.” XRD and SEM studies showed that Na-X, NaZ-21, and Na-A were formed after twenty-four hours under UV conditions, but were still amorphous under dark conditions.They then wanted to test the effects of different densities of UV irradiation on the system. They used zeolite Na-A at 298K and tested it with UV irradiation of 2.0, 4.0, and 8.0 mW/cm2 as well as under dark conditions. They observed a defined crystal after 52, 40, and 36 hours, respectively.They then tested the effects of using a smaller molar ratio of Na2O/SiO2 (3.08 vs 4.4). This should reduce the concentration of OH- and would provide further insight into the mechanism. Under dark conditions crystals were formed after 55 hours. Under UV conditions, crystals were formed after 40 hours, which is faster than the higher molar ratio under dark conditions.Electron paramagnetic resonance (EPR) spectroscopy was used to identify the radical species in both the light and dark conditions, confirming the presence of hydroxyl radicals in the UV conditions. Additional tests showed that hydroxyl radicals are present in zeolites formed from the dark conditions but in lower concentrations. Another way to form hydroxyl radical is to use Fenton’s reagent, a strong oxidant. Using silicalite-1 as an example, Feng, et al. found that Fenton’s reagent makes a higher concentration of hydroxyl radicals than UV irradiation. Long-range order of silicalite-1was observed after 40 hours, compared to 50 hours after UV irradiation and 70 hours under dark conditions. This provides further proof that the concentration of hydroxyl radicals affects the rate of zeolite crystallization.Finally, Feng, et al. tested whether the presence of hydroxyl radicals speeds up both nucleation and crystal growth, or if it only affects one of these steps. By pretreating zeolite Na-A with UV irradiation and then allowing crystallization under dark conditions, they determined that hydroxyl radicals likely speed up the nucleation stage. The crystal growth stage remained constant under both UV and dark conditions. This research provides valuable insight into the zeolite crystallization mechanism, which can facilitate a more efficient production process in zeolite synthesis. 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. © 2016 Phys.org Credit: Guodong Feng, et al.center_img (Phys.org)—Zeolite is a Greek word that literally means a boiling stone. They are porous materials used as adsorbents, catalysts, and as ion-exchangers, and used for water filtration, detergents, and air separation, among other things. Typically zeolites are made in the laboratory using a sol-gel process that involves baking the alumino silicate mixture in an oven for several days. While the crystallization process involves bond formation, breakage, and re-formation, the details of this mechanism are largely unknown. Researchers find definitive evidence of how zeolites grow More information: G. Feng et al. Accelerated crystallization of zeolites via hydroxyl free radicals, Science (2016). DOI: 10.1126/science.aaf1559AbstractIn the hydrothermal crystallization of zeolites from basic media, hydroxide ions (OH–) catalyze the depolymerization of the aluminosilicate gel by breaking the Si,Al–O–Si,Al bonds and catalyze the polymerization of the aluminosilicate anions around the hydrated cation species by remaking the Si,Al–O–Si,Al bonds. We report that hydroxyl free radicals (•OH) are involved in the zeolite crystallization under hydrothermal conditions. The crystallization processes of zeolites—such as Na–A, Na–X, NaZ–21, and silicalite-1—can be accelerated with hydroxyl free radicals generated by ultraviolet irradiation or Fenton’s reagent. Citation: Hydroxyl radicals speed up zeolite formation (2016, March 28) retrieved 18 August 2019 from https://phys.org/news/2016-03-hydroxyl-radicals-zeolite-formation.htmllast_img read more

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Google changes layout of mobile Google Search pages

first_imgGoogle changes layout of mobile Google Search pages by Martin Brinkmann on May 23, 2019 in Google – 24 commentsGoogle revealed a change to its mobile search results pages yesterday that is already being rolled out to all users of the search engine.Google Search is the world’s most popular search engine and while it lags behind in some regions, it dominates most.The design refresh of the mobile search results pages aims to better guide customers “through the information available on the web”. Google notes in the announcement that the new design puts a “website’s branding [..] front and center” so that customers “better understand where the information is coming from”.Site names and icons are displayed on top of the page or site title in the new design. Previously, each entry started with the page title followed by the site icon and (part of its) URL. Now, entries start with the icon and URL, and then the actual page title.Google believes that the new design makes it easier to scan the results page. Advertisement uses the same format but instead of an icon Ad is shown in its place.It is hard to say if that makes it harder to spot advertisement; the old design draw borders around Ad which helped distinguish it from regular content. I’d say ads blend in even better than before, and that will surely drive more clicks to them.Depending on your query, you may get several pages worth of advertisement and other Google-powered features before the first organic search result. The company plans to put even more features and services (that it controls) on search results pages in the future.As we continue to make new content formats and useful actions available—from buying movie tickets to playing podcasts—this new design allows us to add more action buttons and helpful previews to search results cards [..]Google is still not honoring its quality guidelines when it comes to advertisement (which it enforces on sites), and the injection of even more Google-powered snippets will will keep Internet users even longer on Google’s properties.If you don’t like where this is heading, try Startpage Search or DuckDuckGo instead.Tip: check out these five tips to get the most out of Startpage.Now You: What is your take on the redesign? More money into Google’s pockets, more control, and more feature snippets, or beneficial to users (in short or long run)?SummaryArticle NameGoogle changes layout of mobile Google Search pagesDescriptionGoogle revealed a change to its mobile search results pages yesterday that is already being rolled out to all users of the search engine.Author Martin BrinkmannPublisher Ghacks Technology NewsLogo Advertisementlast_img read more

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