New computer model can predict Indias pollution levels months earlier

first_imgNew Delhi: With the ‘smog season’ in northern Indian states just a few months away, US and Chinese scientists have developed a novel computer model that can help accurately predict air pollution levels in the region a season in advance. The statistical model, described in the journal Science Advances, uses certain climatic patterns related to the ocean which have a regulatory effect on the wintertime air pollution over northern India. India has emerged as one of the world’s most polluted countries, with particulate matter (PM) 2.5 levels spiking over 500 microgrammes per cubic metre in Delhi and many other north Indian states last year. Also Read – Swiggy now in 500 Indian cities, targets 100 more this year According to the State of Global Air 2019 report published earlier this year, over 1.2 million people died in India due to air pollution in 2017. The new model could allow the government to forecast aerosol pollution conditions in winter and accordingly improve plans for pollution control, researchers said. “We built a statistical prediction model, which uses two autumn temperature variation patterns as predictors. With it, we will know air pollution in winter,” said Meng Gao from School of Engineering and Applied Sciences, Harvard University in the US. Also Read – New HP Pavilion x360 notebook with in-built Alexa in India “In autumn, we have these indices calculated based on sea surface temperature and geopotential height fields, then the built model will tell you if the wintertime air pollution is severe or not, Gao told PTI. The researcher noted that India’s neighbour China is making every effort to control air pollution, and India has emerged as the world’s most polluted country, receiving worldwide attention with frequent winter haze extremes. The study found that the inter-annual variability of wintertime aerosol pollution over northern India is regulated mainly by a combination of El Nino — a climate cycle in the Pacific Ocean with a global impact on weather patterns — and the Antarctic Oscillation (AAO), a low-frequency mode of atmospheric variability of the southern hemisphere. “There is no such study for India that tells you what will happen for India as much as a season in advance. This study also tells you the dominant climate factor for Indian air pollution, which has not been done before,” said Gao, who is also associated with Hong Kong Baptist University in China. Both El Nino sea surface temperature (SST) anomalies and AAO-induced anomalies can persist from autumn to winter, offering prospects for a pre-winter forecast of wintertime aerosol pollution over northern India, researchers wrote in the research paper. The researchers, including those from Fudan University and Nanjing University of Information Science and Technology in China constructed a multivariable regression model incorporating El Nino and AAO indices for autumn to predict wintertime AOD. The prediction exhibits a high degree of consistency with observation, they noted. In his previous study, Meng highlighted the importance of power plant and residential emissions for health burden of air pollution in India. He said in order to alleviate the problem of air pollution, India could make efforts first in these two sectors. “They can use renewable production of electricity (wind, solar, etc) to replace coal-fired power plants, and reduce the usage of household cooking,” said Meng. He said that India should learn from Chinese government on how to implement policy. “But on specific policy, high quality research is needed for India as the conditions for these two countries are different. Indian government can increase funding in field as China did before,” he added.last_img read more

AARP News Publication Launches Online

first_imgAARP today has unveiled bulletin.aarp.org, the online presence of AARP Bulletin, the association’s news publication.The new site—called AARP Bulletin Today—features daily news, multimedia applications, and original content including columns such as Scam Alert, Save a Buck and Outrage of the Week. The site also includes feeds for breaking news targeted to the association’s members, who are aged 50 and older.The creation of AARP Bulletin Today is part of a larger relaunch of AARP.org. In addition to a redesign, the site now includes content from AARP the Magazine and an online social network. With nearly 40 million members, AARP this year celebrates its 50th anniversary. The association was founded in 1958 by Dr. Ethel Percy Andrus. AARP the Magazine was launched in 2002.last_img read more

Wilmingtons Latest Legal Notices Week of June 9 2019

first_imgWILMINGTON, MA — Below are the latest legal notices related to Wilmington, published during the week of Sunday, June 9, 2019:190693 — Benson — 26 Fairmeadow Road 190775 — Graham Estate190793 — Bids — Porous Pavement Sidewalk Shady Lane DrBurlington Self Storage Auction(NOTE: The above public notices is from MassPublicNotices.org.)Like Wilmington Apple on Facebook. Follow Wilmington Apple on Twitter. Follow Wilmington Apple on Instagram. Subscribe to Wilmington Apple’s daily email newsletter HERE. Got a comment, question, photo, press release, or news tip? Email wilmingtonapple@gmail.com.Share this:TwitterFacebookLike this:Like Loading… RelatedWilmington’s Latest Legal Notices (Week of June 23, 2019)In “Government”Wilmington’s Latest Legal Notices (Week of September 1, 2019)In “Government”Wilmington’s Latest Legal Notices (Week of August 11, 2019)In “Government”last_img read more

Japans Prime Minister Shinzo Abe clinches landslide victory in snap election

first_img Japans Prime Minister Shinzo Abe clinches landslide victory in snap election IBTimes VideoRelated VideosMore videos Play VideoPauseMute0:01/1:16Loaded: 0%0:02Progress: 0%Stream TypeLIVE-1:15?Playback Rate1xChaptersChaptersDescriptionsdescriptions off, selectedSubtitlessubtitles settings, opens subtitles settings dialogsubtitles off, selectedAudio Trackdefault, selectedFullscreenThis is a modal window.Beginning of dialog window. Escape will cancel and close the window.TextColorWhiteBlackRedGreenBlueYellowMagentaCyanTransparencyOpaqueSemi-TransparentBackgroundColorBlackWhiteRedGreenBlueYellowMagentaCyanTransparencyOpaqueSemi-TransparentTransparentWindowColorBlackWhiteRedGreenBlueYellowMagentaCyanTransparencyTransparentSemi-TransparentOpaqueFont Size50%75%100%125%150%175%200%300%400%Text Edge StyleNoneRaisedDepressedUniformDropshadowFont FamilyProportional Sans-SerifMonospace Sans-SerifProportional SerifMonospace SerifCasualScriptSmall CapsReset restore all settings to the default valuesDoneClose Modal DialogEnd of dialog window. COPY LINKAD Loading … Japans Prime Minister Shinzo Abes gamble paid off as his ruling bloc secured two-thirds of majority in the Lower House in the snap election. Following the results, Abe promised to deal firmly with North Korea amid the rising tensions in the region.center_img Closelast_img read more

Speed of light drops to zero at exceptional points

first_img More information: Tamar Goldzak et al. “Light stops at exceptional points.” Physical Review Letters. DOI: 10.1103/PhysRevLett.120.013901, Also at arXiv:1709.10172 [physics.optics] Light, which travels at a speed of 300,000 km/sec in a vacuum, can be slowed down and even stopped completely by methods that involve trapping the light inside crystals or ultracold clouds of atoms. Now in a new study, researchers have theoretically demonstrated a new way to bring light to a standstill: they show that light stops at “exceptional points,” which are points at which two light modes come together and coalesce, in waveguides that have a certain kind of symmetry. ‘Exceptional points’ give rise to counterintuitive physical effects Explore further Unlike most other methods that are used to stop light, the new method can be tuned to work with a wide range of frequencies and bandwidths, which may offer an important advantage for future slow-light applications.The researchers, Tamar Goldzak and Nimrod Moiseyev at the Technion – Israel Institute of Technology, along with Alexei A. Mailybaev at the Instituto de Matemática Pura e Aplicada (IMPA) in Rio de Janeiro, have published a paper on stopping light at exceptional points in a recent issue of Physical Review Letters.As the researchers explain, exceptional points can be created in waveguides in a straightforward way, by varying the gain/loss parameters so that two light modes coalesce (combine into one mode). Although light stops at these exceptional points, in most systems much of the light is lost at these points. The researchers showed that this problem can be fixed by using waveguides with parity-time (PT) symmetry, since this symmetry ensures that the gain and loss are always balanced. As a result, the light intensity remains constant when the light approaches the exceptional point, eliminating losses.To release the stopped light and accelerate it back up to normal speed, the scientists showed that the gain/loss parameters can simply be reversed. The most important feature of the new method, however, is that the exceptional points can be adjusted to work with any frequency of light, again simply by tuning the gain/loss parameters. The researchers also expect that this method can be used for other types of waves besides light, such as acoustic waves. They plan to further investigate these possibilities in the future. Citation: Speed of light drops to zero at ‘exceptional points’ (2018, January 31) retrieved 18 August 2019 from https://phys.org/news/2018-01-exceptional.htmlcenter_img © 2018 Phys.org Journal information: Physical Review Letters Artistic image. Credit: pixabay This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.last_img read more

DM wife assault man inside police station video goes viral

first_imgDarjeeling: A District Magistrate and his wife allegedly slapped and kicked a man and even threatened to kill him even as policemen were present, for allegedly posting indecent comments against the DM’s wife on social media. In a video that has gone viral, Alipurduar DM Nikhil Nirmal and his wife are purportedly seen repeatedly slapping and kicking the man at Falakata police station.Following this, there was widespread controversy and Nirmal has been sent on compulsory leave while Chiranjib Ghosh has taken over as the acting DM of Alipurduar. Binod Kumar Sarkar, the accused, was granted bail by the Additional Chief Judicial Magistrate II, Alipurduar, on Monday. Judge Purba Kundu raised questions as to why BDO Supratik Mazumdar had lodged the FIR against the accused and not the DM or his wife. The judge further questioned the DM’s action (beating up the accused inside a police station). A video clip has gone viral on Sunday showing Nirmal and his wife beating up Sarkar mercilessly inside Falakata police station while the man is seen begging for forgiveness. In the clip, Nirmal, after slapping Sarkar, threatens him with dire consequences. “No one will speak against me in my district. If I can put you in the slammer within half-an-hour, I can go to your house and kill you too,” threatens Nirmal in the clip. Also Read – Rain batters Kolkata, cripples normal lifeHis wife slaps and kicks the man and then orders for a baton to beat him up. The police later escort him out. Sarkar was arrested and charged under Sections 509 (eve teasing,) 354 (molestation) of the IPC along with Section 67 of the IT Act. While being taken to the Falakata Hospital, Sarkar stated that he was Nandini Krishnan’s (Ranjan’s wife) Facebook friend. The two had a disagreement while chatting and she added him to a group. In the group, others started abusing him. He simply retaliated with the comments. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedHuman Rights organisations, the civil society and netizens vehemently rebuked what they termed as the DM’s “high-handedness.” Community Human Rights, later during the day, lodged a complaint against the DM and his wife. Alipurduar Abhibhabok Mancha wrote a written complaint to the SP asking him to initiate legal action against the DM and his wife. “If my son has done anything wrong let the law take its course. Is it right for the DM to take law in his own hands and beat him up mercilessly?” questioned the mother of the accused. She had visited Falakata police station to lodge an FIR against the DM and his wife. “We have granted the DM 10 days of compulsory leave. As of now, Chiranjeeb Ghosh, the ADM, will take charge,” stated Barun Roy, Divisional Commissioner. 33-year-old Sarkar hails from Harinathpur, Deogaon Gram Panchayat, in Falakata. He is a private tutor by profession.last_img read more

SpaceXs Starhopper Test Vehicle Takes a Short RaptorPowered Trip

first_imgApril 4, 2019 This story originally appeared on Engadget 1 min read This hands-on workshop will give you the tools to authentically connect with an increasingly skeptical online audience. Free Workshop | August 28: Get Better Engagement and Build Trust With Customers Now As SpaceX proceeds with development of its Starship vehicle, its first testing out the spacecraft’s Raptor engines. Today a stubby Starhopper test vehicle mounted with a single engine — as opposed to the more advanced Phase 2 version shown above — completed its first tethered hop of just a few inches at the Texas launch site, as spotted by nearby observers. Elon Musk tweeted “All systems green” after the test, which may not have gone far but recalls the early days of Grasshopper rocket tests before we got used to the sight of Falcon 9 rocket engines returning to Earth after successful launches.Musk previously said that suborbital test flights would require three of the engines — the final version of Starship f.k.a BFR will have more — and we’ll be waiting to see when that happens.Starhopper completed tethered hop. All systems green. https://t.co/0m5Bm5slD2— Elon Musk (@elonmusk) April 4, 2019 Enroll Now for Freelast_img read more