Monthly Archives: August 2019

Archive of posts published in the specified Month

Aug
31

New simulations suggest runaway stars may be outcasts from binaries

first_img © 2011 PhysOrg.com The two suggest that on occasion some big stars move close enough to binaries (paired stars) that they get pulled into their gravitational field, resulting in an unbalanced state as the trio moves awkwardly through space. After some time passes, the big star gets the boot and as a result of the buildup of energy created between the three, is sent hurtling out into space, becoming a runaway star.Such stars have been the focus of much attention as they travel so much faster than all the other stars around them. Most in the Milky Way Galaxy by contrast plod along at a measly five kilometers per second, so it’s not difficult to see why the speedsters would draw so much attention. Prior to this research, some suggested the big stars got their speed from being near another star that exploded. Other’s theorized that they’d maybe simply paired with another star and the two began moving around one another at a faster clip, similar to ball room dancers. Though in this case, the two would have wound up flinging one another apart in opposite directions in their grand finale.To back up their theory, Fujii and Zwart built a computer simulation of star clusters and found that over time each cluster did indeed include binaries that attracted other stars that were eventually sent packing by the original two. The researchers believe this proves that the majority, if not all runaway stars became such due to being rejected as a temporary third mate for binaries.This new thinking came about when two stars last year were spotted speeding away from a dense group of star clusters believed to be less than two million years old, which seemed to fly in the face of the exploding partner idea, as such stars aren’t thought to explode until reaching at least three million years of age.At any rate, as time passes, it should be easy enough to prove this new theory; all scientists have to do is trace back the trajectories of speeding stars to see if they came from identifiable binaries. How single stars lost their companions Journal information: Science Citation: New simulations suggest runaway stars may be outcasts from binaries (2011, November 18) retrieved 18 August 2019 from https://phys.org/news/2011-11-simulations-runaway-stars-outcasts-binaries.html More information: The Origin of OB Runaway Stars, Published Online November 17 2011. Science DOI: 10.1126/science.1211927 www.sciencemag.org/content/ear … 1/16/science.1211927 Explore further (PhysOrg.com) — For at least half a century, astronomers have been perplexed by so-called runaway stars; big monsters that hurtle around galaxies at some thirty kilometers per second without apparent reason. Now however, astrophysicists Michiko S. Fujii and Simon Portegies Zwart describe in their paper published in Science, how they believe that the big stars get their speed as a result of being hurled out and away from binary star couplings that occur within the centers of clusters of stars. 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

Aug
31

Researchers find positive visual contagion in Barbary macaques

first_imgBarbary macaques. Credit: Wikipedia/Flickr/Karyn Sig Prior research has shown that humans sometimes engage in what is known as positive visual contagion. This is when an individual encounters another individual behaving in a positive way and responds by behaving in a positive way. An example would be a person entering their office in the morning and encountering someone who seems to be in a cheerful mood—just seeing that person being cheerful can have a positive impact on the person seeing it. When the second person then behaves in a positive way and is seen by a third person who is then impacted, the reason for labeling it as a contagion becomes clear. Until now, it has not been known if positive visual contagion occurs with other animals, though there has been some anecdotal evidence suggesting it does—usually for a short time. In this new effort, the researchers report seeing such behavior in Barbary macaques, and that some episodes lasted up to a half-hour. The researchers studied 20 of the female macaques living in a partially free-range park. Because grooming has been shown to be a positive experience, they used it as a measure when conducting their positive visual contagion experiments. They also used more clear cues such as hugging and touching. The researchers also watched for other behaviors such as scratching or yawning—signs of unhappiness or stress. If a macaque stopped performing such an activity upon witnessing something positive, it was counted as an example of positive visual contagion.The researchers report that they witnessed several examples of positive visual contagion between the macaques. When one of the individuals was feeling nervous, for example, they became visibly less agitated when watching others grooming or being groomed. They also made themselves more readily available for such activities. They were also seen to cuddle more and to offer food to others. More information: Observing grooming promotes affiliation in Barbary macaques, Proceedings of the Royal Society B (2018). rspb.royalsocietypublishing.or … .1098/rspb.2018.1964 Explore further Journal information: Proceedings of the Royal Society B Citation: Researchers find positive visual contagion in Barbary macaques (2018, December 12) retrieved 18 August 2019 from https://phys.org/news/2018-12-positive-visual-contagion-barbary-macaques.htmlcenter_img 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. A pair of researchers at the University of Roehampton has found that captive Barbary macaques are capable of engaging in positive visual contagion—a behavior normally only seen in humans. In their paper published in Proceedings of the Royal Society B, Juliette Berthier and Stuart Semple describe their experiments with Barbary macaques living in a park in the U.K. and what they learned from it. © 2018 Science X Network Positive emotions more contagious than negative ones on Twitterlast_img read more

Aug
31

A simple love story

first_imgItalian filmmaker Alessandro D’Alatri has rolled out a story about young love and small-town life in the form of his latest flick Sul Mare (On the Sea).Shot in the settings of a warm and gentle island, the movie offers a lot more than just depthless teen romance.A ‘country boy’ falls in love with a ‘city girl’ who reciprocates his love and a sweet love story is in the making until the guy thinks that his lady love has jilted him.The love story is at times effective and most of the times simple yet sweet. The soft romance offers amusement until it graduates towards a discordant end which is both soft and tragic.The lead actor, Dario Castillo, plays the part of a guy with a broken heart pretty well, considering the fact that this is his debut flick.Martina Cidecasa, who plays the love interest of Dario, looks pretty in her role. Go for this one.DETAILAt: Italian Embassy Cultural Centre, 50E, Chandragupta Marg, ChanakyapuriWhen: 5 & 8 DecemberTimings 6.30 pm and 2 pm, respectivelyPhone 26871901last_img read more

Aug
31

Talk of the day

first_imgNational Museum is all set to organise its sixth lecture. The talk will focus on the topic ‘Indian Museum – becoming more relevant’. Museum professional Vinod Daniel will be delivering the lecture. The talk will highlight on how museums internationally are better connecting their collections to communities, addressing contemporary issues, better managing their collections and having more effective audience engagement. It will also deal with some of the broader challenges that museums internationally face and the measures that are being taken to make them more sustainable.Daniel is the Chairman of AusHeritage, CEO of India Vision Institute and the Vice Chair of the International Council of Museum-Committee for Conservation. Over his career of more than two decades, he had worked at the J Paul Getty Trust in Los Angeles and the Australian Museum and has handled on projects in over 35 countries. He is currently working on projects with Egypt, USA, Australia, India and Germany.last_img read more

Aug
31

All the beats matched

first_imgThe story of Satyabhama, the second consort of Lord Krishna, came alive in the Capital stage as renowned Kuchipudi dancer Meenu Thakur presented The Glimpses of Bhamakalapam on 23 August at Epicentre, Gurgaon. Renowned Kathak exponent Nalini Kamalini  was the cheif guest for the evening.The artiste depicted the vanity, envy and anger of the divine damsel. She displayed tremendous energy in a break less performance that continued for an hour. Audiences were enthralled by her emotive facial expresions and scintillating feet movements. There were a number of foreign nationals who were watching an Indian classical dance performance for the first time.While intereacting with them, Thakur explained the essence of the portrayal of Satyabhama.last_img read more

Aug
31

Of mythology and art

first_imgThe Kalakshetra Repertory Company presenting six parts of the vintage Ramayana production, featuring some of its best artists from 15 – 20 November at Meghdoot I, at the capital’s Sangeet Natak Akademi. The festival was inaugurated by  Minister of Culture, Dr Mahesh Sharma on 15 November.The representatives of Kalakshetra present at the press meet were – director, Priyadarsini Govind, Senior Guru, Prof A Janardhanan, Heads of Concert Section Jyolsna Menon and Nandini Nagaraj, and senior performing artists and Faculty members Sri Haripadman and Shaly Vijayan. Kalakshetra is renowned for its dance dramas, many of which were meticulously crafted by Rukmini Devi herself. An ardent lover of music, Rukmini Devi invited several great musicians to Kalakshetra, and together, they composed and produced over thirty dance dramas based on traditional forms. It is to her credit that, sixty years later, they have retained their freshness and beauty. The Kalakshetra productions are today recognized for their in-depth research, impeccable technique and refined aesthetics. The most significant of these is the famous ‘Ramayana’ series. In 1955, Rukmini produced the first of the Ramayana dance-dramas – Sita Swayamvaram, with the music composed by the legendary Sri Vasudevacharya of Mysore. Rukmini Devi based her production largely on Valmiki’s classical version, which runs into 24,000 stanzas. She completed the Ramayana series – six in all – in 1969, 14 years after she began the venture.Besides this, the classic play ‘Waiting For Godot’ featuring Naseeruddin Shah was also performed on 15 November. When: On till 20 November Where : Sangeet Natak Akademilast_img read more

Aug
31

Garia woman bitten by Tarantula claims doctor

first_imgKolkata: Scare of Tarantula spiders has reached the city with a woman getting admitted to a private nursing home in Garia after being bitten by a spider. The woman identified as Putul Pailan was performing puja at her home when she was bitten. The family members of Putul claimed that the doctor said the latter was bitten by a Tarantula spider.The insect had somehow stealthily crept inside the flowers kept for puja and as soon as the woman tried to pick up the flowers, she was bitten. The spider was killed and then brought to the nursing home along with the patient. Also Read – Heavy rain hits traffic, flightsThe woman, a resident of Rakshit More area, claimed that she lost sensation on her hand as soon as she received the bite. The scare of Tarantula has already reached the districts after a person died at Debra in West Midnapore in a suspected Tarantula spider bite. The youth identified as Pintu Sahoo was admitted to Egra super specialty hospital on Sunday night and he succumbed to his injuries within hours. The insect has also been spotted in Mahisadal and Patashpur in Medinipur.According to a forest department official, there are 100 types of Tarantula in the world. The big size insects are found in Africa, South America, some parts of Asia and Australia.last_img read more

Aug
31

Of feminism and beyond

first_imgThe discussion Women in Disaster and Destitution being the 11th one in its series celebrating Feminism Beyond Boundaries began with a video which showed the troubles which young girls and women have to go through when their parents/guardians force them into prostitution. Professor Nimesh G Desai, the Director of Institute of Human Behaviour and allied sciences (IHBAS) talked about the possible reasons behind such a situation where women are prone to exploitation at the event held at Oxford Bookstore, Connaught Palace. Also Read – ‘Playing Jojo was emotionally exhausting’Women suffer because when they’ve lost their loved ones. No one to looks after them, which therefore make them vulnerable to exploitation. The victims of disaster are more prone to sexual violence due to the absence of safety in the make-shift tents.  It was discussed that, what makes a nation come together and protest is class bias, which means that an individual may connect with the emotions of another individual if there is a mutual sense of belonging to the same economical strata of society. When Millennium Post asked Desai about the presence of inherent misogyny in individuals, he answered, “ It is a secondary issue compared to other primary issue that play a major role in the lives of these women.” Along with feminism the class-based approach of individuals in a society was also deeply analysed.last_img read more

Aug
31

New dynamic fare for appbased cabs from July 20

first_imgKolkata: The new “dynamic fare” for the app-based cabs is going to be effective from July 20.The dynamic fare will not exceed more than 45 percent of the charges for air-conditioned metered taxis approved by the government. The approved fare for an air-conditioned metered taxi is Rs 18.75 and the waiting or ride-time charges and service charges will get added.According to a press communiqué issued by the state Transport department on Friday, both the app-based cab aggregators have informed the department about the changes to be brought about in the pricing pattern following the meeting. State Transport minister Suvendu Adhikari held a meeting with authorities of the app-based cab aggregators on July 4 in this connection. It may be mentioned that the state Transport department had been receiving repeated complaints of high surge fare for app-based cab services for the past few months. As a result, the state Transport department had initiated finding a solution and held meetings with the operators. Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killedIt may be mentioned that both the companies shall also try to limit the total number of rides that would be charged with dynamic fares, which are more than the authoritative price for air-conditioned meter taxis, to within 25 percent of the total rides for a month. The aggregators also agreed to have a good number of rides with fares below the authoritative prices. At the same time, both the companies would be submitting monthly compliance reports with aggregated data to the Transport department that will evaluate the scenario within three months. The companies have also requested the state Transport department to take steps to issue new permits for commercial cars and bike-taxis in order to increase the availability of the vehicles. Also Read – Naihati: 10 councillors return to TMC from BJPMeanwhile, the state Transport department has also taken steps to ensure that the commission system of payment for drivers and conductors of private buses are abolished and salaries are started. The step has been taken to bring down the rate of accidents caused due to racing between two or more buses. It would come into effect from August 1. The top brass of the state Transport department already held meetings with representatives of the bus owners’ associations. Sources said a committee has also been formed to prepare a time-table based on which the buses will be plying in a particular area.last_img read more

Aug
31

Coastal districts likely to face heavy rainfall today

first_imgKolkata: The coastal districts of Bengal may witness heavy rainfall in the next 24 hours, while the city and its adjoining districts will receive scattered rainfall.The Regional Meteorological Centre at Alipore on Sunday said that a low pressure trough has been formed over Bay-of-Bengal, which will bring rainfall in East Midnapore and South 24-Parganas. Heavy rain will be accompanied by strong winds and thunderstorm, particularly in the two districts. Also Read – Rain batters Kolkata, cripples normal lifeAn alert has been issued to the fishermen, asking them not to voyage into the sea till August 15, as it may turn turbulent. Those who are out in the sea have been asked to return.Some restrictions were imposed on the visitors while taking bath in the sea at Digha and Mandarmani on Sunday, following the alert. The local administrations have taken all measures to check any mishap.Digha and Mandarmani recorded a huge number of tourists on Sunday. Many people from the city and other parts of the state visited beach towns on Saturday. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedThe district police officers maintained surveillance in the beaches and conducted campaigns to make people aware about the rough sea. According to local administration, there were high waves in Digha on Sunday and the condition may continue for the next 24 hours. Policemen have been posted near the sea beaches from Saturday in the wake of the weather prediction.The Met officials on Sunday warned of spells of thundershowers accompanied by strong winds in some South Bengal districts, while moderate rain may lash parts of Kolkata and its adjoining suburbs on Monday. According to the Met office, a low pressure trough formed over Bay-of-Bengal may lead to depression near the state’s coastline, causing a heavy downpour in Gangetic Bengal over the next 24 hours. The situation may improve from Tuesday evening. Rain will be accompanied by strong breeze in some of the districts in South Bengal.The weather office said that the districts like North 24-Parganas, Nadia, Murshidabad and Hooghly will also see light rainfall due to the low pressure trough.last_img read more