7 Aug

Eutelsat 172B Eutelsats first highpower allelec

first_imgEutelsat 172BEutelsat’s first high-power all-electric satellite is to be shipped to French Guiana on March 20 ahead of its planned launch on an Ariane rocket on April 25.Eutelsat 172B will deliver increased capacity for applications including in-flight and maritime connectivity, cellular backhaul, corporate networks, video distribution and government services.The satellite will be located at 172° East, providing reach over the Asia-Pacific region and the Pacific Ocean.The satellite will replace the Eutelsat 172A satellite and will include C and Ku-band payloads connected to a range of footprints.A new Ku-band multi-beam payload delivering 1.8Gbps of throughput will serve what Eutelsat describes as the world’s fastest-growing region for air traffic, with over 8,000 aircraft to be delivered to the region by 2034.According to the operator, Eutelsat 172B will be a major growth platform for in-flight connectivity, thanks to a deal with Panasonic Avionics. Eleven elliptical spotbeams will enable Panasonic to bridge the West coast of North America to Asia and Australia.New technologies deployed on the craft include the Multi-Port Amplifier (MPA), an innovation that will dynamically distribute power between the 11 spotbeams in response to surges in capacity on board aircraft.The satellite is expected to enter service in third quarter 2017.last_img read more

18 Jul

KU Leuven scientists develop new vaccine against Zika virus

first_imgReviewed by Alina Shrourou, B.Sc. (Editor)Dec 19 2018Scientists at the KU Leuven Rega Institute in Belgium have developed a new vaccine against the Zika virus. This vaccine should prevent the virus from causing microcephaly and other serious conditions in unborn babies.In 2015 and 2016, the world was shocked by the sudden and massive outbreak of the Zika virus in Latin America. “The Zika virus is transmitted by the tiger mosquito and, in most cases, the patient experiences no or only mild symptoms,” says Professor Johan Neyts.”But when a pregnant woman contracts the virus, this can affect the brain development of the foetus. It can lead to microcephaly – whereby the infant has a smaller-than-average head – but also mental and other severe health issues”The outbreak of the virus in Latin America is currently under control. However, the virus remains present – in Latin America as well as in other areas with tiger mosquitoes – and there can be a new outbreak at any time. Therefore, scientists across the world are looking for an effective vaccine.Based on the yellow fever vaccineRelated StoriesNew shingles vaccine reduces outbreaks of painful rash among stem cell transplant patientsScripps CHAVD wins $129 million NIH grant to advance new HIV vaccine approachGeorgia State researcher wins $3.26 million federal grant to develop universal flu vaccineIt now appears that Professor Neyts, Dr Kai Dallmeier and their team have developed such a vaccine. “To do so, we made use of the yellow fever vaccine. The yellow fever virus is closely related to the Zika virus and is transmitted by the same mosquito. The vaccine is very safe and offers lifelong protection.””We replaced a piece of the genetic information of the yellow fever vaccine with the corresponding code of the Zika virus. To engineer the vaccine, we used a new technology that we’d developed earlier in our lab and that makes it possible to produce the vaccine in fermenters instead of in fertilized chicken eggs. Another important advantage is that the vaccine remains stable, even at high temperatures. This makes a world of difference for a vaccine that is also intended for use in the most remote corners of tropical and subtropical areas.””Together with the University of Liège, we then explored whether the vaccine was effective in pregnant mice. The vaccine was administered to female mice and, when these mice were a few days pregnant, the Zika virus was injected into their placenta. The pups of vaccinated mothers developed normally and the virus also couldn’t be found in their brains or other organs.”This complete protection is remarkable, says Kai Dallmeier. “We now intend to further develop the vaccine, which could then be used to quickly and effectively vaccinate the population in case of a new outbreak of the Zika virus. This should prevent a lot of suffering.”Source: https://nieuws.kuleuven.be/en/content/2018/game-over-for-zika-ku-leuven-researchers-develop-promising-vaccinelast_img read more

18 Jul

Bitcoin drops below 6000 for first time in three months

Bitcoin has plunged more than two thirds from its record highs in December 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 virtual currency fell to $5,992 for the first time since mid-November, according to Bloomberg News, the latest hammering for the cryptocurrency that saw a stratospheric 26-fold rise last year.Tuesday’s collapse comes just six weeks after bitcoin hit a record high of $19,511, fuelled by a flood of speculators looking to make a quick buck.Since those heady days the cryptomarket—which includes dozens of other units—has been pounded by news of crackdowns by governments including in China, Russia and South Korea, one of the biggest markets for the sector.On Thursday, India said it would “take all measures to eliminate” cryptocurrencies’ use as part of a payment system and in funding illegitimate activities, while Japanese authorities raided a virtual currency exchange after it lost $530 million to hackers.Central banks in Europe, Japan and the United States have also flagged concerns about the unit. This week several commercial lenders said they would stop allowing their customers to buy bitcoin through their credit cards owing to debt concerns.Stephen Innes, head of trading for Asia Pacific at Oanda, said “the dynamics behind the moves are regulatory clampdowns and investors losing confidence in crypto”.The sell-off on Tuesday was exacerbated by crushing losses on world stock markets, with the Dow on Wall Street suffering its biggest one-day points loss and wiping out all its 2018 gains.Panicked investors are fretting over rising US borrowing costs, leading them to cash in profits after a stellar couple of months that have seen many indexes hit record or all-time highs.Equities have enjoyed months of surges fuelled by optimism over the US economy, corporate earnings and the global outlook.But while traders have been piling into equities, pushing many global indexes to record or multi-year highs, there has been growing concern on trading floors about elevated US Treasury bond yields—at four-year highs—and the likelihood of fresh Federal Reserve interest rate rises.”The risk-off tone is hitting Bitcoin almost as hard as a global regulator and bank scrutiny,” said Greg McKenna, chief market strategist at AxiTrader. “The latest dent to the Cryptospace has been banks saying they are shutting down the ability of clients to buy bitcoin with their cards.””This could end up a full round trip back into the $1,850/$2,966 region.” © 2018 AFP Bitcoin plunged more than 20 percent to fall below $6,000 on Tuesday, its latest sharp loss following a series of setbacks, with a global stock market collapse fuelling the selling. Cryptocurrencies fall after Japan’s Coincheck halts withdrawals Citation: Bitcoin drops below $6,000 for first time in three months (2018, February 6) retrieved 18 July 2019 from https://phys.org/news/2018-02-bitcoin-months.html Explore further read more

18 Jul

Over 60 malaria cases in Delhi 27 of dengue

first_imgOver 60 malaria cases in Delhi, 27 of dengueAt least 66 malaria cases have been reported in Delhi this year, more than double the number of people affected by dengue, a municipal report released on Monday showed.advertisement Press Trust of India New DelhiJuly 15, 2019UPDATED: July 15, 2019 23:05 IST Representative image (PTI)At least 66 malaria cases have been reported in Delhi this year, more than double the number of people affected by dengue, a municipal report released on Monday showed.As many as 57 of these malaria cases were recorded in June.Last year, 2,798 dengue cases and four deaths were recorded by the South Delhi Municipal Corporation (SDMC), which tabulates the data on vector-borne diseases in the city.According to the report, till July 13 this year, 27 cases of dengue have been reported — 16 in June, three in May, two in April, four in March and one each in February and January.Cases of vector-borne diseases are usually reported between July and November, but the period may stretch to mid-December.Also, of the 66 cases of malaria eight were recorded in May and one in April — and 14 cases of chikungunya — nine in June, two in February and one each in March, April and May — have been recorded.The dengue victims last year included a minor boy. Three of the victims were identified as Aman Tiwari (13), Sanskriti (21) and Gagan (23).Doctors have advised people to take precautions to ensure that there is no breeding of mosquito larvae around them and urged them to wear full-sleeves and use mosquito nets.Water coolers should be dried up when not in use as mosquitoes carrying the dengue virus usually breed there, a doctor said.Civic bodies had also organised a workshop recently on prevention of vector-borne diseases.Mosquito-breeding has been reported in at least 38,512 households and 38,294 legal notices have been issued this year.Meanwhile, East Delhi Mayor Anju, Monday said from July 17-19, a public awareness campaign on dengue, malaria and chikungunya will be launched in all wards of east Delhi, which will be led by councillors.Of the total number of dengue cases last year, 141 were recorded in December, while 1,062 were reported in November, 1,114 in October, 374 in September, 58 in August, 19 in July, eight in June, 10 in May, two in April, one in March, three in February and six in January.The rest of the cases were reported from areas outside the jurisdiction of the three municipal corporations of Delhi.Also, 473 cases of malaria and 165 cases of chikungunya were reported last year.According to the SDMC, 10 people had died due to dengue in Delhi in 2017, of whom five were not residents of the national capital.Overall, the vector-borne disease had affected 9,271 people in the city in 2017.ALSO READ | 21 deaths reported in Assam due to Japanese EncephalitisALSO WATCH | Bihar encephalitis outbreak: Suspended doctor denies allegations, says name was not in duty rosterFor the latest World Cup news, live scores and fixtures for World Cup 2019, log on to indiatoday.in/sports. Like us on Facebook or follow us on Twitter for World Cup news, scores and updates.Get real-time alerts and all the news on your phone with the all-new India Today app. Download from Post your comment Do You Like This Story? Awesome! Now share the story Too bad. Tell us what you didn’t like in the comments Posted byAnupriya Thakur Tags :Follow MalariaFollow dengue Nextlast_img read more