Metal surface can repel electric charges

first_img Explore further The electric charge packet investigated here is a transverse packet, which is elongated in the direction perpendicular to its motion (motion is indicated by the v arrow). Unlike point charges and longitudinal packets, a fast-moving transverse packet that travels parallel to a metal surface can be repelled by that surface. Credit: Primož Rebernik Ribič ©2012 American Physical Society (Phys.org)—Metals are known for being good electrical conductors. Due to this property, a stationary electric point charge placed outside a metal will cause the electrons in the metal to redistribute in such a way that the point charge will always be attracted toward the metal surface. However, a new study shows that a metal surface will repel an electric charge packet moving parallel to it when the charge packet has a certain geometry and travels at a sufficiently high energy. It’s not just metal surfaces that repel electric charges; any surface will repel this kind of charge packet since the repulsion is caused by the properties of the packet, not the surface. The counterintuitive phenomenon could have implications for improving particle accelerator experiments. Citation: Metal surface can repel electric charges (2013, January 8) retrieved 18 August 2019 from https://phys.org/news/2013-01-metal-surface-repel-electric.html Journal information: Physical Review Letters Primož Rebernik Ribič, a physicist at Ecole Polytechnique Fédérale de Lausanne (EPFL) in Lausanne, Switzerland, has published his study on metal and other surfaces repelling electric charges in a recent issue of Physical Review Letters.As Ribič explains, the interaction between solid surfaces and point charges has been extensively studied, with a classic article by Bolotovskii on the subject published in 1962. More recently, scientists have thoroughly studied the interaction between solid surfaces and charge packets that are elongated in the longitudinal direction (parallel to their motion). However, much less is known about transverse packets, which are elongated in the direction perpendicular to their motion. Ribič has found that the behavior of these packets unexpectedly departs from that of the other two charge geometries.Ribič explains that the phenomenon is easier to understand if one considers the special case of a charge packet moving parallel to the surface of a dielectric. In this case, the packet experiences a force due to two kinds of electromagnetic waves excited in the solid: evanescent waves and Čerenkov waves. Evanescent waves, which exist very close to the surface of the solid, always contribute an attractive force to the charges at all energies. However, the contribution from Čerenkov waves, which travel into the solid, is zero or attractive at low energies, but becomes repulsive at high energies. The reason for this change at high energies is that radiating Čerenkov waves carry a certain momentum into the solid. This momentum has to be balanced by the charge packet, which results in a repulsive force.So at low energies, the attractive components dominate the transverse force, regardless of the charge packet geometry. But even though the Čerenkov contribution becomes repulsive at high energies, previous research has shown that, for point charges, the total force remains attractive at all energies. Electric charge disorder: A key to biological order? More information: Primož Rebernik Ribič. “Can a Metal Surface Repel Electric Charges?” Physical Review Letters 109, 244801 (2012). DOI: 10.1103/PhysRevLett.109244801 Copyright 2013 Phys.org All rights reserved. This material may not be published, broadcast, rewritten or redistributed in whole or part without the express written permission of Phys.org. When investigating transverse charges, however, Ribič discovered a different result. He found that the geometry of the transverse charges suppresses the evanescent waves, which decreases their attractive contribution and allows the Čerenkov wave repulsion to dominate at high energies to produce an overall repulsive force. This effect is due to the fact that a “long” charge packet, i.e., one with a high ratio of transverse to longitudinal size, will suppress evanescent waves propagating at large angles with respect to the packet velocity. When this ratio is increased infinitely, resulting in a line charge with infinite transverse length, the range of angles is reduced to zero. In other words, all waves except those propagating in the forward direction, i.e., Čerenkov waves, are suppressed. Ribič showed that repulsion can occur between a transverse charge packet and either a dielectric or a metal surface, implying that the repulsive interaction is caused by the geometry of the packet. However, the case with the metal surface is the most interesting. Ribič explained that the finding that a metal surface can repel certain kinds of electric charges will change the way scientists solve problems involving electric charges.”In electrostatics, one is used to solving problems with simple charge geometries using the so-called method of images,” Ribič told Phys.org. “For a single point charge above a metal surface, the force between the charge and the metal is equal to the force between the original charge and an opposite charge placed at twice the distance of the original charge from the surface. This also works for line charges and sheets. This method will always give you an attractive force. The method doesn’t work anymore for charges moving at relativistic speeds, which the paper demonstrates. Besides the standard attractive interaction, which is due to evanescent waves, there is also repulsive interaction due to propagating Čerenkov waves. One has to take this into account whenever dealing with charge distributions other than point charges.”The results not only add to scientists’ understanding of fundamental electrodynamics, but could also prove useful for designing particle accelerator experiments. When a high-energy charge gets close to the surface of an accelerator wall, it produces transverse and longitudinal wakefields that can negatively affect the beam properties. Ribič predicts that manipulating the packet geometry may help alleviate this effect.In the future, Ribič hopes that further investigations into the largely neglected effects of charge geometry will have even greater fundamental and practical consequences.”We will probably also check what happens with other geometries,” he said. “One interesting example would be a ring of charge with a large radius. For an infinitely large ring, one should also get repulsion between a ring that is placed into a guiding tube of an accelerator. Then the question is how the ring and tube radius affect the interaction. We are also planning to explore the interaction between charges and anisotropic media (such as uniaxial dielectrics).” 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

How does complex behavior spontaneously emerge in the brain

first_img Citation: How does complex behavior spontaneously emerge in the brain? (2013, August 26) retrieved 18 August 2019 from https://phys.org/news/2013-08-complex-behavior-spontaneously-emerge-brain.html A spatial representation of the background avalanche activity in a circular culture with a 2.5-mm radius and density of 300 neurons per mm. Only the top 1% of the most active connections is shown. Different colors correspond to different neuron communities, according to a community detection algorithm. Credit: Javier G. Orlandi, et al. ©2013 Macmillan Publishers Limited In a new study published in Nature Physics, a team of researchers from Spain has shown that emergence in neuronal networks can be explained as a noise-driven phenomenon that is controlled by the interplay between network topology and intrinsic neuronal dynamics. In this scenario, a randomly fired pulse propagates through the network and is amplified by noise focusing, which the researchers describe as an implosive concentration of spontaneous activity. “From the experimental point of view, we show that in neuronal cultures, the emergence early in the development of collective spontaneous activity is dominated by the presence of activity waves that initiate in specific regions of the culture, in a similar way as it happens in vivo,” lead author Javier G. Orlandi at the University of Barcelona told Phys.org. “And with the help of simulations, we also show that you don’t need any special mechanism to explain this behavior, just the right combination of network structure and dynamics. These waves emerge naturally from the noise focusing effect, in which individual firings propagate and concentrate in specific regions to later generate these activity waves.”The researchers arrived at this explanation by combining high-resolution calcium imaging experiments of rat cortical neurons with simulations. The experiments revealed that bursts of neuronal pulses are controlled by waves that originate at small areas called nucleation sites. Although previous research has hinted at the existence of such waves, this study is the first that provides sufficiently high resolution to measure the wave velocity for the first time. The random nature of the wave initiation from spontaneous neuronal firing also supports the idea that it is a noise-driven phenomenon, in which the waves are later amplified to become global bursts.The view of emergence in neural networks as a noise-driven phenomenon differs from the common view in which the bursts of neuronal pulses are controlled by specific leader neurons assisted by the network architecture. In the noise-driven explanation, the nucleation sites do not actively initiate the firing process, but collect and amplify the firing activity that originated elsewhere.As the researchers explain, understanding the full implications of noise focusing in the brain remains a question for future research.”The mechanism of noise focusing emerges naturally in any system with interconnected integrate-and-fire units (like neurons), so its effect should also be present in the brain,” Orlandi said. “If this effect is important in the brain, or by contrast, if the brain has other mechanisms to counter its effect, is still an open question. It could be that noise focusing is responsible for the generation of waves of activity during development, like in the retina, and that it helps the maturation of specific neuronal pathways.”In the future, the researchers plan to further investigate neuronal activity through more in-depth investigations.”We want to see what happens in more complex neuronal systems, like slices or electrode recordings from anaesthetized animals, and see if we find the same effect in there,” Orlandi said. “We know that activity waves are present in these systems, but we still need to see how these waves form exactly, if it is also due to noise focusing or due to something else. It would also be extremely interesting to check what role noise focusing plays in social networks, for example in rumor spreading.”In this analogy, the points of a rumor’s origins can be compared to the nucleation sites where waves originate, and the spreading of a rumor to the brain’s collective neuronal firing. More information: Javier G. Orlandi, et al. “Noise focusing and the emergence of coherent activity in neuronal cultures.” Nature Physics. DOI: 10.1038/NPHYS2686 Journal information: Nature Physics Coherence activity in neuronal cultures from noise focusingcenter_img Explore further (Phys.org) —The idea of emergence, in which complex behavior spontaneously emerges out of simple interactions, exists in a wide variety of areas, such as economics, the Internet, and urban development. But perhaps the ultimate example of emergence is in the brain, where thousands of randomly firing neurons spontaneously reach a coherent state of collective, periodic firing that underlies all brain functions. Despite significant progress, the mechanisms responsible for the origin and maintenance of spontaneous neuronal activity are still poorly understood. © 2013 Phys.org. All rights reserved. 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

Fossil find shows ancient beaked whale hunted fish in shallow waters

first_img © 2015 Phys.org Rarely-seen whale washes up on Massachusetts beach Modern Ziphiidae dive down to great depths to find prey such as fish and squid—their dolphin-like snouts and teeth allow them to capture prey and eat it, a marked difference from other whales that suck in huge amounts of water and filter the small creatures in it as their means of sustenance. The fossil that was found, the group claims, is the first known example of a ziphiid eating fish near the surface.The researchers believe the whale captured and consumed a large number of sardine-like fish, then a very short time later, died, possibly due to also ingesting a toxin of some sort, fell to the ocean floor and was entombed—but not before disgorging some of the contents of its belly. The fossil was found embedded in rock with multiple small fish inside of its body and in the immediate area surrounding it. Dating of material in the rock placed the age of the whale and surrounding fish to approximately nine to ten million years ago, placing them in the Late Miocene.The fossils were all in remarkably good shape—the team could make out scales on the fish, which is why they believe that they had not had much time to be digested before the whale that ate them died. More importantly, the fish were not deep sea dwellers, which indicated that the whale hunted near the surface at least part of the time. The number of fish, 40 to 60 of them, and their average size of 39 centimeters, the team notes, is in line with a bellyful of fish caught by the whales’ modern cousins. They note also that dolphins moved into the area not much later, displacing the whales, forcing them to seek food in deeper waters. Explore further Life reconstruction of three individuals of the extinct beaked whale Messapicetus gregarius preying upon a school of aged sardines Sardinops sp. (average body length 38.8 cm) in the upper part of the water column along the coast of nowadays Peru. The front individual is an adult male, whereas the last in the background is a female. Illustration by A. Gennari. Credit: Proceedings of the Royal Society B, Published 9 September 2015.DOI: 10.1098/rspb.2015.1530 (Phys.org)—A team of researchers from several institutions in Europe and Peru has found evidence of an ancient ziphiid (toothed beaked whale) that unlike its modern ancestors, hunted near the surface of the sea. In their paper published in Proceedings of the Royal Society B, the group describes their study of the whale fossil found in a dolomite concretion beneath the sea bed off the coast of Peru last year.center_img Journal information: Proceedings of the Royal Society B More information: No deep diving: evidence of predation on epipelagic fish for a stem beaked whale from the Late Miocene of Peru, Proceedings of the Royal Society B, Published 9 September 2015.DOI: 10.1098/rspb.2015.1530AbstractAlthough modern beaked whales (Ziphiidae) are known to be highly specialized toothed whales that predominantly feed at great depths upon benthic and benthopelagic prey, only limited palaeontological data document this major ecological shift. We report on a ziphiid–fish assemblage from the Late Miocene of Peru that we interpret as the first direct evidence of a predator–prey relationship between a ziphiid and epipelagic fish. Preserved in a dolomite concretion, a skeleton of the stem ziphiid Messapicetus gregarius was discovered together with numerous skeletons of a clupeiform fish closely related to the epipelagic extant Pacific sardine (Sardinops sagax). Based on the position of fish individuals along the head and chest regions of the ziphiid, the lack of digestion marks on fish remains and the homogeneous size of individuals, we propose that this assemblage results from the death of the whale (possibly via toxin poisoning) shortly after the capture of prey from a single school. Together with morphological data and the frequent discovery of fossil crown ziphiids in deep-sea deposits, this exceptional record supports the hypothesis that only more derived ziphiids were regular deep divers and that the extinction of epipelagic forms may coincide with the radiation of true dolphins. Citation: Fossil find shows ancient beaked whale hunted fish in shallow waters (2015, September 9) retrieved 18 August 2019 from https://phys.org/news/2015-09-fossil-ancient-beaked-whale-fish.html 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

Latest study of Tabbys star offers more weirdness

first_img Explore further A pair of researchers has added more evidence regarding the oddity of KIC 8462852, aka Tabby’s Star. Benjamin Montet with the California Institute of Technology and Joshua Simon with Observatories of the Carnegie Institution of Washington have uploaded a paper to the arXiv preprint server detailing their study of the star by analyzing data from the Kepler space observatory over the past four years. They found that the star has been decreasing in brightness at an unprecedented rate. © 2016 Phys.org 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. Allen Telescope Array. Credit: Seth Shostak, SETI Institute Citation: Latest study of Tabby’s star offers more weirdness (2016, August 9) retrieved 18 August 2019 from https://phys.org/news/2016-08-latest-tabby-star-weirdness.htmlcenter_img Journal information: arXiv More information: arxiv.org/abs/1608.01316AbstractKIC 8462852 is a superficially ordinary main sequence F star for which Kepler detected an unusual series of brief dimming events. We obtain accurate relative photometry of KIC 8462852 from the Kepler full frame images, finding that the brightness of KIC 8462852 monotonically decreased over the four years it was observed by Kepler. Over the first ~1000 days, KIC 8462852 faded approximately linearly at a rate of 0.341 +/- 0.041 percent per year, for a total decline of 0.9%. KIC 8462852 then dimmed much more rapidly in the next ~200 days, with its flux dropping by more than 2%. For the final ~200 days of Kepler photometry the magnitude remained approximately constant, although the data are also consistent with the decline rate measured for the first 2.7 yr. Of a sample of 193 nearby comparison stars and 355 stars with similar stellar parameters, 0.6% change brightness at a rate as fast as 0.341 +/- 0.041 percent per year, and none exhibit either the rapid decline by >2% or the cumulative fading by 3% of KIC 8462852. We examine whether the rapid decline could be caused by a cloud of transiting circumstellar material, finding while such a cloud could evade detection in sub-mm observations, the transit ingress and duration cannot be explained by a simple cloud model. Moreover, this model cannot account for the observed longer-term dimming. No known or proposed stellar phenomena can fully explain all aspects of the observed light curve. New study supports natural causes, not alien activity, explain mystery star’s behavior The tale of Tabby’s Star began in September of last year when Louisiana State University astronomer Tabetha Boyajian reported anomalies in the unusual light curve of star KIC 8462852—over the years 2009 to 2013, its light appeared to dip in ways that did not conform to what would be expected if it were due to a planet passing in front of it, temporarily blocking some of its light. Her paper led to observations, commentaries and theories from others in the space community, though no one was able to come up with a reasonable explanation for what she had found. One researcher actually proposed that it might be due to alien activity. Then, earlier this year, Bradley Schaefer with Louisiana State University published results of his efforts studying photographic plates that had captured the star going back to the 19th century—he reported that the light from the star had dimmed 19 percent over just the past century. His report was not received warmly by all, as many suggested his data or approach was likely flawed.But now, another team has found something similar. Montet and Simon studied images from the space-based Kepler observatory and found that light from Tabby’s Star had decreased in brightness by approximately .34 percent a year for 1000 days starting in 2009, which was actually twice the rate that Schaefer had found. Even stranger, they found that over the next 200 days, the brightness of the star dimmed by another 2.5 percent before it finally leveled out.Various scientists have offered possible explanations for the strange behavior of Tabby’s star—from comet swarms to planetary remnants to the construction of a Dyson Sphere-like structure around the star to capture its energy by aliens—but so far, none of the theories has been able to take into account all of the odd observations. That may change soon, however, as Boyajian, the astronomer who first noticed the star’s strange behavior, ran a successful crowdsourcing campaign to pay for time at the Las Cumbres Observatory Global Telescope Network over the course of a year—this will give her a chance to catch the star in the act of blinking, allowing her to alert the rest of the astronomy community, which will presumably its sights on the star at once, and in so doing, perhaps solve the mystery.last_img read more

A psychologist explains why everyone is obsessed with a new viral app

first_imgTo learn about these effects, Business Insider spoke with William Chopik, social-personality psychologist and professor at Michigan State University, who said that the filter may be good for coming to terms with old age, but, like other social media, it might appeal to users’ vanity. If you’ve ever wanted to find out how you’ll look in, say, 40 years, you can do it on a controversial app that’s going viral, FaceApp. …center_img “People are naturally drawn to know more about themselves,” Chopik told Business Insider. “Life is really uncertain, so any type of feedback that helps us predict what the future is like is useful.” Read the whole story: Business Insiderlast_img

Exfoliate Hyderate and Glow

first_imgExfoliating the skin with body a scrub and hydrating it with a good summer lotion are important things that can help your skin to get a glow and look younger.Dead cells can be knocked off to get radiant skin by following few basic steps religiously, says Manoj Khanna of Enhance Cosmetic and Aesthetic Studio. Exfoliate your body: It’s very important to exfoliate your skin. No matter how much lotion you use, you’re never going to have glowing skin if you don’t exfoliate. Grab a body scrub and hit the shower. Gently rub your exfoliator in circular movements on your entire body from the shoulders down and rinse clean. Also Read – ‘Playing Jojo was emotionally exhausting’Continue to do this two- three times a week for year-round beautiful skin. Go for fresh sunscreen: Throw away last year’s unused sunscreen for a new bottle. Buy a new sunscreen that has Ultraviolet aging and Ultraviolet burning products and comes in SPF 30 and SPF 70.Reapply every one to two hours that you are in the sun to ensure a summer full of safe sun fun. Hydrate your body with a summer-scented lotion: Find a fruity summery lotion, which is light and fast absorbing. Gels and purees are perfect fast absorbers. Make sure you apply it right after you dry off from your shower. Also Read – Leslie doing new comedy special with NetflixDon’t forget your feet: Winter boots have long since been packed away; it’s sandal season ladies! Either go and get a pedicure, or give yourself an at-home pedicure. Scrub off the dead dry skin to reveal your sandal ready feet. Keep a foot scrub and file in your shower, and scrub your feet a few times a week. Avoid makeup: During summer, less makeup is best. If you intend to use foundation, then also apply face powder with SPF to avoid patchy skin. To protect your lips, always use a gloss or a lip balm with an SPF 15 to make them feel fresh. Avoid eye makeup in summer. Exfoliating is a good idea during summer because it unclogs  sweat pores as well allowing the body to breathe.last_img read more

Flying high

first_imgAakashan is a fusion of Australian and Indian traditional aerial acrobatics arts. The show was developed and directed by Catherine Daniel an Australian physical theater practitioner in collaboration with Indian choreographer Vikram Mohan, Carly Sheppard, an indigenous Australian contemporary and tradition dancer and the Kalakar Trust.Aakashan was presented and performed by young artists who belong to traditional artist families having low- income backgrounds. The show’s daring aerial acrobatics feats performed include the aptly named gazelle split, half angel, mermaid, bow and arrow & sleeping beauty.  All these elements require incredible stamina and endurance to perform. Also Read – ‘Playing Jojo was emotionally exhausting’Speaking on the occasion Sterre Sharma, founder Kalakar Trust said, ‘I am proud that the youngsters in this show showed the strength to succeed in spite of the challenges they have faced every day of their life.’Founded by 1992 by Sharma, The Kalakar Trust has grown to benefit more than 1200 families of mostly puppeteers, dancers, musicians, acrobats, and magicians.  The funding for the Trust comes from the sale of Sharma’s paintings.  The basic aim of the Trust is to keep the traditional art of these communities alive by providing education, health services, drinking water, income generation arts and community management.The Kalakar Trust is an NGO working for the up-liftment of underprivileged artists living in Delhi slums. The major project is in Katputli colony, West Delhi. The basic aim of the trust is to keep the traditional art of these communities alive by providing education, health services, drinking water, income generation arts and community management.last_img read more

3 injured in DalitJat clash

first_imgThree persons, including a minor, were injured after a clash broke out between members of two communities in Jat Mujhera village, police said on Saturday.A panchayat was convened under New Mandi Police Station on Friday evening to resolve some dispute between Jaat and Dalit communities when the discussions turned violent as the two sides resorted to stones pelting and firing, SP city Sarvan Kumar said.Three persons — Ravish (32), Pradeep (28) and Andnaveen (17), who belonged to the Dalit community were shot at and injured in the incident, he said. The victims were shifted to a nearby hospital and are in a critical condition.Police have registered a case against nine persons and have arrested two accused in this connection.last_img

Governor to meet SEC chief today take stock of poll prep

first_imgKolkata: Governor Keshari Nath Tripathi will hold a meeting with state Election Commissioner A K Singh on Wednesday, to take stock of the preparations for the ensuing Panchayat elections, the dates for which was announced by the state Election Commission (SEC) on Saturday.Sources in the Raj Bhavan said that Singh had sought the time from the Governor, to discuss certain aspects of security and other things related to poll-preparedness. “The stand of the state government in various matters related to the polls and the allegations made by the Opposition will also come up for discussion in the meeting,” a top official of SEC said. Also Read – Heavy rain hits traffic, flightsMeanwhile, the state government once again engaged in a shadow duel with the Governor, over BJP state President Dilip Ghosh’s comment that the Governor was reportedly “worried about violence in Bengal and wanted Central forces in the state during the Panchayat polls.” State Education minister and Trinamool Congress secretary general Partha Chatterjee told mediapersons: “People of Bengal have stopped considering the Governor as a neutral person. We have never heard from the Governor that he wants Central Forces. But Dilip babu (Dilip Ghosh) has said so. Why should things said to a delegation come out in public? Why are the Opposition scared of the rule of law?” Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killedGhosh, along with BJP leader Mukul Roy, led a delegation and met Tripathi on Tuesday afternoon. It may be mentioned that one person has died in alleged clashes over submission of nomination forms ahead of the Panchayat polls. The filing of nominations had started on Monday, soon after the SEC put forth the notification, declaring the election dates. Clashes were reported from Bankura’s Onda, Lalbagh in Murshidabad, Arambagh in Hooghly district, Suri and Labhpur in Birbhum.”The Opposition has started visiting the Governor with an attempt to disturb the smooth poll process and the development taken up by the government under the leadership of Mamata Banerjee,” Chatterjee said.last_img read more

Cops use body lights to increase visibility in beaches

first_imgKolkata: Taking a unique initiative to help tourists easily identify policemen and civic volunteers even after sunset, the policemen on Digha and Mandarmani beaches have been provided with uniforms fitted with LED lights.The LED lights of blue and red colour are fitted on the shoulder of the uniform and are visible even from a distance. The lights are commonly called “body lights” by the police.It may be recalled that similar LED lights were first introduced by Kolkata Traffic Police and on-duty traffic constables and sergeants put the lights on after sunset while performing duty on road. It helps to identify them easily. Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killedAt present, Digha and Mandarmani are the most famous seaside destinations at East Midnapore. Lakhs of people visit Digha every year and on almost every day, thousands of people gather at the sea beach after sunset. Similarly, many people also prefer to visit Mandarmani for its serenity. The district police have taken several steps to ensure safety and security of the visitors at both the tourist spots.There are around 65 policemen and civic volunteers who are provided with body lights. Fifty of them are posted at Digha while 15 are at Mandarmani. Also Read – Naihati: 10 councillors return to TMC from BJPThe policemen and civic volunteers keep patrolling the sea beach to avoid any untoward incident. They keep watch to ensure that no tourist goes close to the sea after sunset, as it may lead to an accident. They also ensure that the tourists are not disturbed by anyone else.Often tourists need to approach police to seek some sort of help. Since the LED lights are visible even from a distance, a tourist can directly reach an on-duty policeman or a civic volunteer, instead of searching here and there.V Solomon Nesakumar, Superintendent of Police of East Midnapore district, said: “The basic idea is to help tourists as much as possible and the body lights will help them easily identify policemen in case they need any help. At the same time, manpower has also been increased to avoid any untoward incident at the beaches.”last_img read more

Affiliated colleges write to CU for extension of admission dates

first_imgKolkata: A number of colleges affiliated to Calcutta University have written to the varsity, urging it to extend the admission dates.There are 1.3 lakh seats in colleges under CU, out of which 40,000 are lying vacant, even though the last date for admission has already elapsed on July 10.According to sources in Calcutta University, seats have been lying vacant in a number of colleges, including Sris Chandra college, North City College, South City College, Dum Dum Motijhil College, Lake Town College and Bidhannagar College to name a few. Also Read – Sowing activities on track with ample rain in S Bengal districtsInitially, the date for completion of admission was fixed on July 6 and was later extended to July 10 in the wake of allegations of extorting money for college admission.These colleges have written to the university with the appeal to extend the dates further.It may be mentioned that the Higher Secondary examination results were published in the first week of July and the admission process was kicked off on June 21.However, soon after the admission process began, there were allegations of extortion in the name of admission from a number of colleges in the city, including Surendranath College, Jaipuria College, South City College, Dinabandhu Andrews College, etc. Also Read – Son-in-law arrested in connection with Garden Reach murder incidentSimilar allegations also surfaced from colleges in North 24-Parganas, affiliated under West Bengal State University.Chief Minister Mamata Banerjee instructed the state Education department to admit students online, so that they no longer need to turn up physically for the purpose.The police have also cracked the whip and arrested a number of people including students, for being involved in this unfair practice.”We have found out that the colleges located close to railway stations in the suburbs of the city already have their seats filled up,” a senior official of CU said. He expressed his optimism that if the dates are extended then seat occupancy will normalise.last_img read more

Bdesh Mukti Jodhas celebrate Vijay Diwas at Fort William

first_imgBangladeshi ‘Mukti Jodhas’ (freedom fighters), Indian war veterans and serving officers of the Armed Forces on Wednesday commemorated their victory over Pakistani forces during the 1971 Liberation War here.Vijay Diwas celebrations at Eastern Command assume a special significance as Mukti Jodhas and Indian war veterans, who fought shoulder to shoulder, reunite every year to celebrate the momentous occasion in history.Lt Gen Praveen Bakshi, General Officer Commanding-In-Chief (GOC-in-C) of Eastern Command, Air Vice Marshal K P Nair and a large number of serving and retired personnel of the three Services paid homage by laying wreaths at Vijay Smarak (War Memorial) in Fort William.Bangladesh Food Minister Md Qamrul Islam also placed wreath along with other serving and retired officers of the 30-member Bangladeshi delegation who were present on the occasion.last_img read more

CISF detains one at airport recovers over 176 grams of gold

first_imgKolkata: CISF detained a person from Kolkata Airport on charges of smuggling gold on Sunday morning. Around 176.9 grams of gold was found in his possession.Sources said constable Hirday Bhanu Mondal of CISF noticed suspicious movement of a passenger near customs lock gate, situated between international arrival conveyor belt 15 and 16 of the airport.Mondal immediately informed the matter to other officers. One Ateesh Kumar Gupta, a resident of Gorakhpur in Uttar Pradesh, was detained as he attempted to pass on a packet from the customs bound area to arrival visitors’ area. When searched, CISF personnel found 176.9 grams of gold in his possession, including a gold bar weighing 162.5 grams and a finger ring weighing 14.4 grams, worth around Rs 5.50 lakh in total. The person later confessed that the gold was given to him by a passenger called Somnath, who had arrived on a private airline flight from Bangkok at 6.10 am on Sunday. Immediately, details of the person were conveyed to the Customs officials. Gupta was later released.last_img read more

Flight passenger dies at Kolkata Airport

first_imgKolkata: A passenger of a Kolkata-Chennai flight died on Monday due to cardiac arrest at the Netaji Subhas Chandra Bose International Airport. He felt uneasy after boarding the flight and was taken to the medical facility at the Kolkata Airport and later rushed to R G Kar Medical College and Hospital where he was declared brought dead. Sources informed that the passenger, identified as Himangshu Das (30), came to Kolkata Airport from Silchar with two of his family members on Monday morning. He was going to Chennai for medical purpose. Around 3 pm, he along with his family members boarded the Air India Kolkata-Chennai flight. Also Read – Rain batters Kolkata, cripples normal lifeWhen the flight was about to start, Das told his family members that he was feeling unwell and collapsed on the seat. As he became unconscious, his family members immediately informed the flight crew about his health. Without wasting any time, a medical emergency was declared and on-duty doctor was called in. Das was taken to the airport’s medical facility. Later the doctor from the airport authority suggested to admit Das to a hospital. Immediately, an ambulance was arranged and Das was taken to R G Kar where he was declared brought dead. Doctors suspect that Das had a cardiac arrest just after boarding the flight. Due to this, the flight’s take off from Kolkata happened a few minutes later. Police was informed about the incident. Later cops took charge of the body and sent it for autopsy examination.last_img read more

Forest department set to brand Sunderbans honey

first_imgKolkata: The state Forest department is all set to brand honey found in the Sunderbans and make it more popular and readily available to more and more people in the state. The responsibility of developing the branding has been taken up by the West Bengal Forest Development Corporation Ltd (WBFDCL).”A large section of people in the Sunderbans earn their bread through collection and sale of honey. People have a belief that honey collected from bee hives in the forest are more nourishing. If we can create a branding following proper procedure then it will surely boost the income prospect of those associated with the honey business,” a senior official of WBFDCL said. Also Read – Rain batters Kolkata, cripples normal lifeThe department will train the villagers about the modern and scientific process of manufacture of quality honey. The finished product will then be tested by Food Safety and Standards Authority of India (FSSAI) who will give certification. “These are essential parameters for creating a proper branding,” the official added. The WBFDCL will video the entire process of the honey production and make arrangements for showcasing it in different resorts both in South and North Bengal. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killed “This will make people more convinced about the quality of honey and with the products being made available at all these resorts it will boost the income of those associated with the honey collection,” said the official. It may be mentioned that the state Forest department has already started taking steps to stop villagers from the Sunderbans venture into the core area of the forest for collection of honey, by encouraging the villagers to take up apiculture right in their native villages. People, roaming around in deep forests for honey collection or fishing in the creeks of the river, are very often mauled by tigers. As per estimates of researchers every year, around 50 fishermen or honey collectors are killed in tiger attacks. “We want to bring down the number of human deaths due to tiger attack to zero. Keeping this in mind, we will help villagers in taking up apiculture in all possible forms right in the villages so that they do not need to venture into deep forests. We are taking assistance from experts of Bidhan Chandra Krishi Viswavidyalaya,” said a senior official of the Forest department.last_img read more

Fahion hacks for a quick new look

first_imgYour clothes portray your style and your fashion choices. They radiate your confidence and make you feel good. Some people dress eccentrically to stand out in a crowd. Fashion is an art and art is always versatile which not only relates to the dress you are wearing but everything that integrates into your outfit. In order to succeed, fashion brands have no choice but to be creative. But don’t worry; we always have a solution and you don’t have to burn a hole in your pocket to become a style expert. It’s time to upgrade your cupboard with chic styling ideas. Also Read – Add new books to your shelfNeck-tie for watch strapGot some old-ties dead in your cupboard from high school times? Time for some watch makeover! This is something really comfortable, colorful and economical at the same time. Just cut off the old and worn-out strap from your watch and replace it with a colorful neck-tie you have. Simply roll the tie on your wrist 1-2 times and tie a small knot to have the comfortable look. You can also add some beads and chain locks at the ends. Besides that, it’s easily washable, unlike leather straps. Also Read – Over 2 hours screen time daily will make your kids impulsiveFishnets and ripped jeansThe ‘ripped jeans’ trend has completely flooded the planet. It is so common to see people pairing these up with t-shirts or crop tops. But there’s always something different that can be done. You can wear fishnet stockings under your ripped jeans to have a completely different and attractive look. All it takes is the right amount of inspiration to work them into your existing wardrobe. Let them peek out from under your jeans, or show a few inches of fishnet just above your pants’ waistband. Scarf for sandal strapsSummer is the ultimate season for sandals, but don’t just settle for plain flip flops. With a little creativity, you can make cute ‘scarf sandals’ out of your old flats. All you need is a cheap pair of flip flops, a colorful scarf, and scissors. Cut the scarf in two and start wrapping half of it on the strap of your slippers and tie a little knot at the end. You can wrap the remaining length of the scarf around your ankle to create a sandal look. You can use small hooks, beads or simple knots to hold the ends together. If you ever get bored, you can just change up the scarf and give your sandals a whole new look.Sock bootsAll you need to make your own ‘sock boot’ is a pair of pointy-toed pumps, thin knit socks, and a piece of sandpaper. Simply roll the sock over the heel of your pumps, cut a hole at the heel and slide it through the sock and stick sandpaper (or non-slip grips) at the bottom of the sole to avoid any skidding. This will also save the lives of so many innocent animals killed to make those expensive leather boots. Another thing you can do is to wear a similar color stockings under a tying-sandal to get the perfect boot look for summers. The fitting of these boots are much more attractive than the regular boots, less warm and don’t restrict movement.Go ahead and apply these fashion hacks to have your own unique look this summer.last_img read more

Over 100 films in 7 days to sensitize kids

first_imgThe coming week of December will see over 100 feature films, short films, and documentaries being screened at the Sirifort auditorium till December 17. Organized by Smile foundation, the much-awaited third edition of the ‘Smile International Film Festival for Children and Youth’ (SIFFCY) will open (on December 11) with ‘Village Rockstars’ – a critically acclaimed and award winning Indian film – in order to stimulate discussion among the youth and sensitize them about various issues. Also Read – Add new books to your shelfSIFFCY is the only children and youth film festival that showcases films catering to children and youth. Apart from showcasing the films, the festival also supports emerging filmmakers and recognizes the pioneers and leaders of the industry. SIFFCY has received over 2000 entries this year from over 100 countries.This year, the highlight of this one-of a kind festival will be the Dutch Cinema for which top 10 Dutch films have been curated and will be presented by Gert Herman from the European Children’s Film Association. Also Read – Over 2 hours screen time daily will make your kids impulsiveSIFFCY will also highlight burning issues of cleanliness, environment and climate change through a special selection of films and discussion forums – called SIFFCY goes Green, to create awareness on the environmental issues amongst children and youth.”Apart from film screenings, every year SIFFCY also organizes film making workshops with an objective to engage, educate and empower our children and youth. SIFFCY has been hosting various workshops in a special section called “Take One”. This year the workshop will be hosted by internationally acclaimed UK based organisation- ‘Films without Borders’ with the idea of engaging and educating children on filmmaking. The other highlight of the festival includes a special delegation from Japan coming to present a film on ‘Love and humanity against war’ (A film on selfless service of mankind post World War II)”, said Jitendra Mishra, Festival Director, SIFFCY.Other film line ups include: The day my father became a bush – a film about war through the eyes of a little girl, Cloud boy, a joint production by Belgium, Sweden, Norway, Netherlands, Junod from Japan, and Nafas and Glasses from Iran.last_img read more

Femaledominated workplaces offer less flexible timing

first_imgIf you work in a female-dominated workplace, chances of having access to flexible working arrangements could be less and not more as commonly assumed, new research suggests. The study looked at individuals in 27 countries across the European Union. It found that the best workplaces for providing flexibility were gender-neutral – where men and women were equally represented.The research, published in the journal European Journal of Industrial Relations, provides evidence to ‘reject the assumption’ that women have better access to flexible working arrangements and that female-dominated workplaces are better at providing them, said researcher Heejung Chung of University of Kent in Britain. Also Read – Add new books to your shelf”Working in female-dominated jobs and/or sectors significantly reduces access to schedule control for both men and women,” the study said. It is commonly assumed that the low wages often found in female-dominated workplaces can be justified through better provision of family-friendly arrangements, but this research provides evidence that low wages are accompanied by worse working conditions for many.The implication for policy makers is that the group of the population that may be in most need of flexible work arrangements may be unable to gain access to them.last_img read more

Election Commission showcauses Dilip Ghosh

first_imgKolkata: The Election Commission (EC) has served a show-cause notice to BJP state president Dilip Ghosh for his controversial remarks regarding the Commission itself.The office of the Chief Electoral Officer (CEO) in the state has sought a clarification as to why he made such an obnoxious comment regarding the EC. The remarks came from Ghosh two days ago after the election personnel removed a banner that was allegedly carrying his photograph and Ram Navami greetings. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: MamataWhile talking to a private television channel, Ghosh said he would have taken off the trousers of the election personnel who had dared to remove the banner, had he been present there at the spot. The CEO office has taken a strong objection to Ghosh’s remarks. According to a senior official at the CEO office, Ghosh’s statements were derogatory in nature and hence, he has been asked to clarify why he made such a statement. Ghosh had allegedly used Ram Navami greetings and posters during his election rally flouting the Model Code of Conduct (MCC) set up by the Election Commission of India. Also Read – Lightning kills 8, injures 16 in stateThe state has once again witnessed processions where weapons were brandished during the Ram Navami celebrations this year. After his controversial remarks, Ghosh had, however, claimed that he did not flout any MCC violation by putting a banner greeting people on the occasion of Ram Navami. He went ahead and added that he is entitled to put out a banner as he has been a local MLA. The Commission, however, seems unmoved and has show-caused him. The CEO office wanted to know from Ghosh if he has conducted an election rally using various posters of Ram Navami or if any weapons were used during the rally. Earlier, Ghosh was seen displaying swords and maces during Ram Navami celebrations in Kharagpur. The Kolkata Police along with its state counterpart said no political, apolitical and religious organisations have been allowed to carry out rallies with arms. Chief Minister Mamata Banerjee, while addressing a rally in Siliguri, criticised the BJP for taking out armed rallies and said they were trying to “sell religion” for political advantage. “Whose throat do you want to slit with swords? Whose head do you want to smash with the mace,” she had questioned while addressing a rally in favour of party’s Darjeeling Lok Sabha seat candidate Amar Singh Rai.last_img read more

IMA slams idea of Bridge Course for dentists

first_imgKolkata: The Indian Medical Association (IMA) has condemned the idea of ‘Bridge Course’ to create cadres of mid-level health practitioners by allowing dentists to practice mainstream medicine in various health centres.Niti Aayog, along with the health ministry, is examining a proposal to introduce Bridge Course for the dentists so that they can be used as mid-level health providers in various health centres across the state, particularly where there is a crisis of MBBS doctors. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: MamataDr Santanu Sen, national president of IMA, declared that there is no shortage of doctors in the country. “Around 63,250 MBBS graduates come out of 494 medical colleges in the country. But India has only 23,729 post graduate seats,” Dr Sen said. “The fact remains that the government does not have the capacity to absorb the rest of them. Every year the unemployment among young medical graduates is a great cause of concern. The frustration of these youngsters with an undergraduate degree has to be addressed first,” he added. Also Read – Lightning kills 8, injures 16 in stateCondemning the idea of mid-level practitioners, IMA secretary general Dr RV Asokan said the government’s attempt to provide half baked medical care to the citizens through mid-level practitioners is dangerous. “The government should give permanent posting to MBBS graduates in 1.5 lakh health and wellness centres. Ad Hoc postings are not acceptable,” he said. It may be mentioned here that a meeting on this proposal is scheduled to be held at Niti Aayog on April 22.last_img read more