Physicists Ponder Atoms Without Nuclei

first_imgThis illustration ashows the absolute value of the real part of the two-electron wave function for the H-initial state (a) before and (b) after an attosecond full-cycle pulse with a half-cycle momentum transfer equal to 10 atomic units and pulse duration equal to 0.6 atomic units. The arrow in (b) points in the direction in which the wavepacket is displaced with respect to the nucleus and the CM denotes the center of mass of the wavepacket. The small cut in the wavepacket in (b) is due to the electron-electron repulsion in the continuum. Image Credit: Darko Dimitrovski. Explore further What to call such a system is not yet an urgent matter, since, for now, an atom without a nucleus is just a hypothetical concept. But physicists John Briggs and Darko Dimitrovski from the University of Freiburg in Germany have recently described how such an atom might be created with the use of an attosecond laser. Capable of generating pulses that last just one billionth of a billionth of a second (10-18 seconds), an attosecond laser could possibly “detach” the electrons from an atom and – keeping their shape largely intact – remove them from being centered around the nucleus.“I would not call it an ‘atom,’” Briggs told PhysOrg.com. “Maybe an ‘atom without a nucleus’ or a ‘filleted atom.’ However, one should not forget that when several electrons are involved, once the nucleus is away, the electrons will repel themselves, and the ‘atom’ will be destroyed. Nevertheless, coincident detection of the electrons should allow reconstruction of the initial wavepacket.” Briggs said that he is not aware of the idea of an atom without a nucleus being proposed before. But such a thing could potentially be created because the duration of an attosecond laser pulse is much shorter than the orbital time of an atom’s ground-state electrons. In a hydrogen atom, for example, an electron takes about 24 attoseconds to orbit the nucleus. Besides being short, the attosecond laser pulse must also be very strong, with an electric field equal to or greater than the nuclear field experienced by a bound electron.The researchers propose that a single short (10-attosecond), strong (1018-watt) laser pulse interacting coherently with the ground electrons could be used to remove all the electrons from an atom, completely ionizing the atom. In the first half-cycle of a pulse, several atomic units of momentum would be transferred, causing the electrons to accelerate away from the nucleus without changing the form of their initial wavefunction.Normally, an electron wavepacket that leaves an atom spreads out and loses its shape, and the electrons quickly repel each other and fly apart. However, due to the extremely short attosecond pulse, the wavepacket has almost no time to spread. Although a single half-cycle pulse can produce this wavepacket, electromagnetic theory shows that a half-cycle alone cannot be produced. So the researchers use the second half-cycle pulse to stop the electron wavepacket from moving away from the nucleus, producing a stationary atomic electron cloud spatially distant from its nucleus. Instead of being centered around the original nucleus, the wavepacket has shifted and is centered around the pulse’s mean momentum. The researchers explain that this scheme could apply not only to single- or multi-electron atoms, but also to molecules. The greatest challenge, of course, is in building an attosecond laser with such a short, strong pulse. A sufficient attosecond laser – once it exists – could enable researchers to test Briggs and Dimitrovski’s proposal. Using different half-pulses, researchers could create atoms without nuclei, as well as slow down electron wavepackets for extraction by detector fields. “We conceived this as a ‘sexy’ little experiment,” Briggs explained. “However, the real message of the paper is that one should be able to fully ionize an atom or molecule (or even clusters of atoms or plasmas) and then control and manipulate, by further half-cycle momentum kicks, the state of the continuum electron wavepacket. The possibility of observing rather directly the spatial bound-state atomic wavefunction moving nucleus-free, essentially undistorted, is just one example of this general technique that the development of strong attosecond lasers will make realizable.”More information: Briggs, John S.; and Dimitrovski, Darko. “Ionization in attosecond pulses: creating atoms without nuclei?” New Journal of Physics 10 (2008) 025013.Copyright 2008 PhysOrg.com. All rights reserved. This material may not be published, broadcast, rewritten or redistributed in whole or part without the express written permission of PhysOrg.com. 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.center_img You might remember learning in sixth grade science class that isotopes are atoms that have lost or gained a few neutrons, and ions are atoms that have lost or gained a few electrons. But what about an atom that has lost its entire nucleus – when essentially all that remains are the electrons whizzing around in their defined orbits? What happens when you explode a chemical bond? Citation: Physicists Ponder Atoms Without Nuclei (2008, March 19) retrieved 18 August 2019 from https://phys.org/news/2008-03-physicists-ponder-atoms-nuclei.htmllast_img read more

Atomtronic transistor and diode could advance quantum computing

first_img Can alkaline earth metals be used in quantum computing? (PhysOrg.com) — What if atoms could be used to perform the functions currently the province of electronic devices? The goal of atomtronics is to do just that by creating analogues to the common items found in electronic devices. Ron Pepino, a graduate student at JILA and the University of Colorado, believes that he and his colleagues have found a way to create the atomtronic versions of diode and transistor circuits. The work of Pepino, Cooper, Anderson and Holland is described in Physical Review Letters: “Atomtronic Circuits of Diodes and Transistors.” Citation: Atomtronic transistor and diode could advance quantum computing (2009, October 9) retrieved 18 August 2019 from https://phys.org/news/2009-10-atomtronic-transistor-diode-advance-quantum.html “In our work, we create a one-to-one analogy between conventional electronic circuits and atoms trapped in optical lattices,” Pepino tells PhysOrg.com. “In this analogy, the current carriers — the electrons — are replaced with neutral, ultracold atoms, the semiconductor material that the electrons traverse is replaced with an optical lattice, and the electric potential difference — which induces the flow of electrons around the circuit — is replaced by a chemical potential difference”“The dynamics of atoms in optical lattices, which are basically crystals of light, have been studied both theoretically and experimentally for many years now. We add to this field by theoretically demonstrating that the electronic properties of the diode and transistor can be observed in specifically tailored optical lattices,” Pepino continues.The team at JILA believes that it is possible to emulate the behavior of a semiconductor diode in these atomic systems. “We have predicted that you can take the optical lattice, manipulate its experimentally-tunable parameters in a specific way, and recover diode-like phenomena,” Pepino explains, “Our simulations show that this augmented optical lattice will allow atoms to flow across it from left to right, for example, but forbids the atoms to traverse the lattice going the other way. We have modeled this, and we think it might work.”Pepino and his peers have also modeled an atomtronic transistor. “All modern electronics contain transistors; they are the fundamental building blocks of electronics and computers. Naturally, we want an atomtronic version.” The transistor designed by Pepino and his colleagues exhibits on/off switching behavior, and acts as an amplifier. By configuring the optical lattice in a manner discussed in their article, they show that it is possible to recover the characteristics of the conventional electronic transistor in the atomic world. He points out that atomtronics probably won’t replace electronics. “Atoms are sluggish compared to electrons, and that means that you probably won’t see atomtronics replace current electronic devices. What atomtronics might be useful for is the field of quantum information.” Because electrons lose any possible initial quantum state as they bounce around through the energy dissipating semiconductor or metallic systems, they are ill-equipped for quantum computing. “In quantum computing, you store a quantum state on an object, perform operations on the object and then read out the final state. If the system is not coherent, the initial stored information is lost,” Pepino points out. “Atoms trapped in optical lattices have been considered extensively for specific quantum computing schemes due to their inherent energy conserving characteristics. The dynamics of our atomtronic devices would be coherent and potentially useful in quantum computing.” He also suggests that there is the possibility that atomtronics could be useful in obtaining sensitive measurements. At the very least, he concludes, “atomtronic systems provide a nice test of fundamental concepts in condensed matter physics.”While these ideas have been modeled, they have yet to be built. Pepino says that an effort is under way to set up experiments that could provide a proof of principle for the work being done at JILA and the University of Colorado by experimental collaborator and co-author Dana Anderson.More information: Pepino, et. al. “Atomtronic Circuits of Diodes and Transistors,” Physical Review Letters (2009). Available online: http://link.aps.org/doi/10.1103/PhysRevLett.103.140405 Copyright 2009 PhysOrg.com. All rights reserved. This material may not be published, broadcast, rewritten or redistributed in whole or part without the express written permission of PhysOrg.com.center_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. Explore furtherlast_img read more

New theory suggests platybelodon had a separate trunk

first_imgOsborn’s reconstruction of Platybelodon from his 1936 book Proboscidea. Credit: American Museum of Natural History, via the Biodiversity Heritage Library/Wired By most standards, the platybelodon was an odd looking animal—while resembling modern elephants, it also had a protruding lower jaw with horizontal teeth that Sanders believes were used in a scythe-like manner to mow down grass for consumption. Platybelodon fossils were first discovered and described back in the early 1920’s. Since that time, many more fossils (particularly in China) have been found helping to give researchers a better picture of what the animal actually looked like. It’s now pretty clear that they lived approximately 8 to 20 million years ago in Africa, Asia and even made their way to North America. But because their upper mouth region, snout or trunk, was made of softer material that didn’t fossilize very well, researchers have not been able to see what the upper part of the mouth or trunk actually looked like. For that reason, they have had to put forth theories to explain why an animal would grow a lower jaw the way it did and how an upper mouth or trunk might make best use of what it had—otherwise, neither would have evolved the way it did.The earliest depictions of platybelodon show an elephant-like creature with a dexterous upper mouth and large, equally dexterous tongue. The thinking, by one of the first to try to understand how the animal looked—Henry Osborn—was that platybelodon simply used its mouth parts to grab food and eat it, much like most other grazers. Paleontologist David Lambert, suggested back in 1992, however, that careful study of the teeth on the bottom jaw indicated the animal used them for slicing grass, a feat which would have been difficult for a simple normal grazer. Now, Sanders is weighing in, suggesting that the answer is simple—platybelodon had a trunk like modern elephants, but rather than simply using it to yank food from the ground to stuff into its mouth, it used it to hold onto thick tough grasses while sawing with its lower teeth. That would explain, he says, why the trait evolved—it was a way to help feed a large animal that had to subsist on grass that was too tough to simply yank from the ground. New advance on Platybelodon from the Linxia Basin of China 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. (Phys.org) —Noted paleontologist William Sanders of the University of Michigan has suggested via email to Matt Simon of Wired Magazine, that earlier depictions of platybelodon with a gaping mouth are likely misrepresenting what the ancient elephant-like animal actually looked like.center_img Explore further Citation: New theory suggests platybelodon had a separate trunk (2013, October 7) retrieved 18 August 2019 from https://phys.org/news/2013-10-theory-platybelodon-trunk.html © 2013 Phys.orglast_img read more

Russian magic once again

Delhiites, it is time to rediscover the romance of Russia that Bollywood once created soon after Independence. So from Russian theatre to ballet, you can catch them all in your city itself. And all this, thanks to a protocol that was signed on Monday between the Indian Council for Cultural Relations [ICCR] and the Ministry of Russian Federation. As a result, a festival that will showcase Russian culture in India will be held later this month and will go on till early November. Not just Delhi, those living in Mumbai and Bangalore will also get a chance to be a part of this cultural extravaganza. Also Read – ‘Playing Jojo was emotionally exhausting’A total of 65 artistes and delegates will travel from Russia for the festival and they will be provided with hospitality by ICCR. A similar cultural programme will take place in Russia next year.In India though, expect performances by soloists of the Bolshoi, Marinsky and Mikhailovsky Theatres, St Petersburg Folk ensemble Barynya, the troupe of the Russian Academic Youth Theatre and a photo exhibition.The two-day festival in Delhi will see joint performances by folk dance ensemble Barynya and the State Academic Youth Theatre [RAMT]. The next day, there will be a performance of Russian Bolshoi Ballet and Marinsky and Mikhailovsky Theatres, St Petersburg. Also Read – Leslie doing new comedy special with NetflixBarynya originally is a Russian folk dance accompanied by music. The word barynya was used by simple folk as a form of addressing a woman of a higher class. The Barynya dance is an alternation of chastushkas and frenetic dancing. The dance doesn’t adhere to a choreography and consists mainly of fancy stomping and traditional Russian squatwork — knee bending. Go for this.DETAILWhat: Barynya and State Academic Youth Theatre [RAMT] When: 29 October At: FICCI Auditorium, What: Bolshoi Ballet and Marinsky and Mikhailovsky Theatres When: 1 NovemberAt: Siri Fort AuditoriumTimings: 7 pm read more

Taking to the streets

first_imgPromoting, professionalising and branding street foods in its own master style, the National Association of Street Vendors of India (NASVI) has announced a grand Street Food Festival at the sprawling Jawaharlal Nehru Stadium complex. The theme slogan of this culinary carnival would be ‘Swad hai, Romanch hai, Street Foods ki Baat hi kuchh aur hai’.This winter delight set to attract thousands of foodies across India over three days will have master street food vendors of different regions of India and other countries with their signature dishes  having age old stamps of culinary tradition and culture. Also Read – ‘Playing Jojo was emotionally exhausting”Not just a unique battle of tastes, the carnival will be an advocacy event with a difference wherein the executives and functionaries of tourism, food processing, health, labour and employment departments and boards, and representatives of culinary institutes, development agencies, media and academic institutions would join together to share, acknowledge and celebrate the potentials and the possibilities of street food vending sector,’ said Arbind Singh, NASVI national coordinator while announcing the dates and venue of the festival. Also Read – Leslie doing new comedy special with Netflix’It will be an occasion to reassert that the grassroots street food entrepreneurs play a wonderful role in poverty reduction, employment generation and enterprise building, and they make cities charming for all,’ Singh added.NASVI feels that the street food vendors are disadvantaged because there is usually no support from formal institutions to improve their businesses or protect them from external influences. The usual response at policy level towards street food vendors is poor.They often have no legal status, resulting in victimisation by the police, public health institutions and local government authorities.So head over and show these guys some of your support and also – tuck in!WHEN: 20, 21 and 22 Dec, 12 noon-10 pmWHERE: Jawaharlal Nehru Stadium, Gate No: 14Entry by ticket: Rs 30 per Personlast_img read more

Silent Encounters

first_imgArtist Amit Bharis is all set to take over the Capital with his magical canvases. Bhar belongs to the artistic tradition which is inspired by silent moods and contemplative conditions. His images are easy and uncomplicated, caressed by a mysterious but pleasant feeling. There is no room for strong, emotional outbursts in his works; they are never to be touched by anger, apprehension, anguish, or bitterness. Instead, Bhar’s art takes the course of a pilgrimage or a spiritual sojourn where negative thoughts are systematically filtered and eliminated; and in their place feelings of all-pervasive love, subtlety and gentle playfulness come to rest. Bhar’s works represents a meditative reflection, unburdened ambiance and a nuanced poignancy of an empowered spirit. It is clear that for the artist, creativity is an act of devotion, an act of connection, and a process of sharing. His paintings are acts of revelation, of affection, of softly spoken discourse, of giving as well as receiving. Also Read – ‘Playing Jojo was emotionally exhausting’Bhar chooses the realistic mode for his artistic expression – a mode that is at once, penetrative, insightful and striking. The artist sees and perceives all things made by man and nature with all the care and grace they deserve. His paintings are filled with hues that pleases the eye. Bhar’s skill lies  in mixing colours, perfecting the line and forming a texture. He also captures the nuances of a magical moment, a silent chant, a personalized mantra. Light is his biggest source of stimulation; the shadow, a willing and worthy companion.Bhar’s art is about positive energy and joyous associations, be it with the serene Ganga herself with her sensuous waves and ripples; or the Enlightened One himself exuding both tranquillity and expansion at the same time. Don’t miss this one!When: 1st March till 15th March, 2014Where: ART INDUS, 37, Santushti Shopping Complex, Chanakyapurilast_img read more

Indian employees to see 108 salary hike in 2015

first_imgAccording to Towers Watson 2014-15 Asia-Pacific Salary Budget Planning Report, Pakistan, Bangladesh and Vietnam are set to lead the way with over 11 per cent overall salary increases while India is placed at the fourth position with an increase of 10.8 per cent. The report added that though salary across the regions are set to rise, a corresponding rise in inflation would mean that pay increases in ‘real terms’ would be eroded significantly in the coming year. Also Read – I-T issues 17-point checklist to trace unaccounted DeMO cashChina is expected to see the highest salary increase — 5.2 per cent in real terms in the region, followed by Pakistan (4.5 per cent), Bangladesh (4.3 per cent), Vietnam (4.1 per cent) and Sri Lanka (3.8 per cent). India was ranked sixth with a corresponding real increase of 3.5 per cent. ‘We foresee an increased economic growth in Asia Pacific in 2015 in light of a declining unemployment rate and rising GDP in the region,’ Towers Watson Data Services practice leader, Asia Pacific Sambhav Rakyan said. Also Read – Lanka launches ambitious tourism programme to woo Indian tourists‘This, in turn, will lead to inflationary pressures that affect real salary increases. Indians will only see an effective salary increase that is one-third of the overall salary increase due to such pressures,’ Rakyan added.The report further noted that in 8 out of the 10 sectors surveyed, the pay raises for Executive Directors and Senior Management in India are expected to be higher than or equal to 2014 with the professional services sector particularly standing out at 4.5 per cent. In India all employees — from production workers to executive directors — are set to have higher pay raises than last year.last_img read more

DGH to renegotiate fiscal terms with Cairn India

first_imgThe Oil Ministry has asked sectoral regulator DGH to renegotiate fiscal terms of Cairn India’s Rajasthan oil block before its licence can be extended beyond the contractual period.“We have asked DGH to renegotiate terms with both the contractors, Cairn and Oil and Natural Gas Corp (ONGC),” a senior government official said.Cairn’s contractual term for exploring and producing oil from the Rajasthan Block RJ-ON-90/2 expires in 2020 and the company has made a formal application for extending the licence by another 10 years saying that the block also has significant potential to produce natural gas. Also Read – I-T issues 17-point checklist to trace unaccounted DeMO cashAs per the Production Sharing Contract (PSC), the licence can be extended by 5 years if it is oil bearing, and by 10 years if it has natural gas potential. ONGC, which is the licensee of the block, has agreed to 10 year extension but asked the ministry to decide if fiscal terms need to be renegotiated. The official said the ministry put the Directorate General of Hydrocarbons on the job after the Law Ministry opined that fiscal terms can be renegotiated while granting extension beyond contractual period. Also Read – Lanka launches ambitious tourism programme to woo Indian touristsThe government can look at raising its share of oil from the fields from a current cap of up to 50 per cent as well as allowing state-owned ONGC to raise its stake. Asked for an opinion on the issue by the Oil Ministry, the Law Ministry stated that the extension of contract can be done only on “mutually agreed terms and conditions” by all parties to the contract ie government, ONGC and Cairn. He said the ministry has stated that the PSC for the Rajasthan block clearly states that extension can be granted on “mutually agreed” terms and conditions. The phrase mutual agreement clearly indicates a new agreement implying thereby that the parties to the agreement are at liberty to renegotiate the terms and conditions of the contract including fiscal terms and conditions, it has opined. Accordingly, the administrative ministry can renegotiate the terms and conditions in the best interest of the Union of India before granting extension and there appears to be no legal objection in this regard, it added.On the term of extension, it left it to the oil ministry to decide based on ground facts. ONGC holds 30 per cent interest in the Rajasthan block.Contractually the Rajasthan block is to return to ts licensee, ONGC after its term expires in 2020. Cairn India is the operator of the block with 70 per cent interest.last_img read more

Drivers protest against plying of illegal autos

first_imgKolkata: The drivers of Baguiati-Ultadanga auto rickshaw route suspended their service alleging that several autos are plying illegally on the same route. It has been alleged that the drivers of such auto-rickshaws behave badly with the passengers.According to the sources, the number legal autos on the Baguiati-Ultadanga route is around 350. But every day approximately 600 autos ply on the same route. The auto drivers with legal documents alleged that over 250 autos are plying without any valid papers. “As people do not know about these autos, they tend to blame all the auto drivers in case of extra fare or rude behaviour,” said an auto driver. Also Read – Rain batters Kolkata, cripples normal lifeThe auto drivers on Friday afternoon stopped their service protesting against the illegal auto drivers. They demanded strict action against the illegal autos plying on their mentioned regularly. Due to plying of illegal autos, the legal auto drivers’ earning have came down. In the evening, the number of autos that ply has become low compared to the number of passengers. Sources informed that several autos do not have any insurance as they are not authorised by the Regional Transport Authority (RTA). Thus, the passengers of those autos will not get any compensation if the auto meets with an accident.last_img read more

Amid festive rush Kolkatans face harrowing time as cab crisis cripples city

first_imgKolkata: Several passengers and daily commuters in the city faced immense trouble while reaching their destinations on Tuesday, as some errant cab drivers forced them to get off and snatched the keys from the drivers to force them to go for strike.According to the accused drivers, they are protesting against the Ola and Uber authorities regarding several issues. Later, the West Bengal Online Cab Operators Guild (WBOCOG) intervened and service normalised from the afternoon. Also Read – Rain batters Kolkata, cripples normal lifeWBOCOG president Madan Mitra on Tuesday warned the drivers not to go for any strike. He also stated that the Ola and Uber authorities are doing injustice to the drivers and cab operators. On December 27, the guild authorities led by Mitra will meet Transport minister Suvendu Adhikari regarding the problem. It was on Monday when some online cab drivers went to Uber’s office in Salt Lake, where they were heckled. Later, the angry drivers decided to go for a strike till Wednesday. However, the guild requested the drivers not to go on strike. Mitra also got in touch with them and asked for the same. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedAccording guild leaders, when the news of forceful strike reached them on Tuesday morning, they intervened and warned the strike supporters to restrain themselves, adding that strict action would be taken otherwise. Due to the issue, cabs at the Kolkata Airport were very low in number. General Secretary of the guild Indranil Banerjee stated that the situation has now been normalised. No effect of the strike will be there from Wednesday. On Tuesday Mitra said: “No strike of Ola and Uber will be tolerated. By taking the guild’s and my name, some miscreants tried to go for a strike forcibly by dragging out passengers from cabs and snatching the keys from the drivers. We are trying to locate them. We are going to sit with Transport minister Suvendu Adhikari regarding the problem on December 27. The Ola and Uber authorities are behaving like fascists.”last_img read more

Smartphone addiction may create personal social problems

first_imgPeople who use smartphones in excess may experience personal, social and workplace problems warn new research.In the study, participants who identified themselves as “addicts” and “fanatics” exhibited signs that could indicate depression, social isolation, social anxiety, shyness, impulsivity and low self-esteem. “Our smartphones have turned into a tool that provides short, quick, immediate satisfaction, which is very triggering,” said Isaac Vaghefi, Assistant Professor at the Binghamton University-State University of New York. Also Read – Add new books to your shelf”Our neurones get fired and dopamine is being released, and over time this makes us acquire a desire for quick feedback and immediate satisfaction. This process also has contributed to developing shorter attention spans and being more and more prone to boredom,” Vaghefi said.The umbrella term “technology addiction” refers to addictive behaviour related to social media, excessive texting, information overload, online shopping, gambling, video gaming, online pornography and overall smartphone usage. Also Read – Over 2 hours screen time daily will make your kids impulsiveAccording to the study, seven per cent were identified as “addicts” and 12 per cent as “fanatics.” Both groups experience personal, social and workplace problems due to a compulsive need to be on their smartphones, according to the study published in the Information Systems Journal.Females were most likely to exhibit susceptibility to addiction.”While self-identified ‘addict’ users were in the minority, I predict technology addiction will increase as technology continues to advance and application, game and gadget developers find new ways to ensure users’ long-term engagement with technology,” Vaghefi said. The researchers said that if you constantly check your smartphone, even when it does not ring or vibrate, or you get paranoid when the smartphone is not with you, seeking professional help might be a good idea. Moreover, if you use technology as a way of escaping problems or relieving feelings of helplessness, guilt, anxiety or depression, or you ignore what is happening in real time in favour of what is happening virtually, you might then be a right candidate to seek professional help, the researchers said.last_img read more

Gay couples too face domestic violence

first_imgWhile intimate partner violence is a prevalent and pressing concern in heterosexual relationships, gay couples too may be at an increased risk of physical and sexual violence, emotional abuse as well as controlling behaviour, finds a study.According to researchers, the violence links back to HIV prevention because men in abusive relationships may find it hard to negotiate for condom use or even when and how they have sex. A gay man who is struggling with his identity might lash out at his partner with physical or emotional abuse as a stress response behaviour – similar to heterosexual couples, where an unemployed man lashes out at his female partner because he feels inadequate. Also Read – Add new books to your shelfThe study makes a strong connection between internalized homophobia and violence, the findings showed.”If you just looked at physical and sexual violence in male couples, it’s about 25 to 30 per cent, roughly the same as women,” said Rob Stephenson, Professor at the University of Michigan in the US.”We’re stuck in this mental representation of domestic violence as a female victim and a male perpetrator, and while that is very important, there are other forms of domestic violence in all types of relationships,” Stephenson added. Also Read – Over 2 hours screen time daily will make your kids impulsiveThe research is important because it debunks that stereotype, and accounts for controlling and isolating behaviours as well as physical abuse, Stephenson said.For the study, published in the American Journal of Men’s Health, the researchers recruited 320 men (160 couples) to independently complete individual surveys measuring demographic information, partner violence experience and perpetration, and individual and relationship characteristics that may shape the experience of violence. They found that 46 per cent of the 320 men (160 couples) experienced some form of intimate partner violence in the last year – physical and sexual violence, emotional abuse and controlling behaviour.The Supreme Court in India has began hearing a number of petitions challenging Section 377 of the Indian Penal Code which criminalises consensual homosexuality for people who identify as lesbian, gay, bisexual, and transgender.last_img read more

Massive fire erupts at multistoreyed building near Exide Crossing

first_imgKolkata: A major fire broke out at a multi-storeyed building near Exide crossing on Friday morning. Twelve fire tenders were pressed into action and the flames was doused after almost three hours. None was hurt or trapped in the building.On Friday morning, around 9:30 am, fire broke out at an office of an interior decoration company on the 4th floor of a multi-storied building located on 60, Chowringhee Road, popularly known as Mukherjee Building. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: MamataWithin a few minutes thick black smoke covered the entire Exide crossing and Bishop Lefroy Road. Occupants of the building ran out of the apartment in panic and people residing in adjacent buildings also got frightened seeing the thick black smoke and they too rushed out of their homes. Police and fire brigade were immediately informed. Primarily three fire tenders were sent to douse the flames but fire fighters realised that the intensity of the fire is quite high and therefore fire brigade control room was asked to send more fire tenders. Later, in two phases eight more fire tenders were sent at the incident site. Also Read – Lightning kills 8, injures 16 in stateAt the first, fire fighters evacuated all the apartments adjacent to Mukherjee building. While a section of firefighters sprayed water from the ground floor, other firefighters divided into two groups sprayed water from other buildings. The Disaster Management Group (DMG), Kolkata Municipal Corporation (KMC) and Calcutta Electric Supply Corporation (CESC) also joined the fire fighters to bring the flames under control. The situation turned serious when a major vertical crack developed on the building due to the heat. Soon, a huge portion of the building collapsed. According to firefighters, the building was weak and therefore it collapsed but necessary safety precautions were taken in this regard. Fire minister Sujit Bose and Director General of Fire Jag Mohan arrived at the spot to take stock of the situation. After an elaborate discussion with the fire officials, Bose said: “Senior officials have visited the spot. The flames were brought under controlled after two hours. Though a part of the building collapsed, no one is trapped or injured. Some parts of the apartment need to be demolished. KMC will take a decision on that. An inquiry will be conducted to find out whether the building authorities have mandatory fire license and no objection certificates. Stringent action will be taken if negligence is found on anybody’s part. Some residents told me that they were alerted by the fire alarm.” According to CESC, engineers reached the site within 20 minutes and found that the fire erupted on the 4th floor of the multi-storied building. After consulting the fire brigade officials, power supply to the affected building was re-energised within 5 minutes. CESC engineers and workers kept a minute-to-minute watch till the fire was completely doused. Later, after the clearance given by the fire brigade, power supply was restored.last_img read more

Undiagnosed thyroid increases infertility risk

first_imgOver 20 per cent women in India live with an undiagnosed thyroid problem and do not even realise that it is the cause of various health issues including infertility, health experts have said. Thyroid is a small butterfly-shaped gland in the neck that produces thyroid hormones that help regulate the human body’s energy use. Sometimes the thyroid makes too much or too little of these hormones. When thyroid hormone production drops (hypothyroidism), the body’s processes slow down and change. On the other hand, overactive levels of the hormone (hyperthyroidism) can speed up the body’s functions. Also Read – Add new books to your shelfHypothyroidism or an underactive thyroid could make women unable to conceive. Low levels of thyroid hormone can interfere with ovulation, which impairs fertility, the experts said. “Thyroid is a very common problem especially post 25 years of age and women are four times more prone to thyroid disorders than men,” experts said. “Undiagnosed and untreated thyroid disease can be a cause for infertility or frequent miscarriage.” Infertility symptoms can include disturbed menstrual cycle, heavy and less frequent periods, low basal body temperature and difficulty in conceiving. Also Read – Over 2 hours screen time daily will make your kids impulsiveLow thyroid levels, which make the ovaries less able to produce progesterone, also lead to symptoms of premenstrual syndrome (PMS), affecting about 70 per cent of women. An undiagnosed thyroid problem could also be the cause of other health issues including symptoms such as weight gain, fatigue, constipation, muscle and joint aches, sluggishness, intolerance towards cold weather, abnormal and irregular periods and sleeplessness, among others. “Infertility is a major health threat due to thyroid and many other conditions that are often the direct result of undiagnosed and untreated thyroid conditions,” explained experts. “In order to lead a healthy life I would recommend that all patients who recognize any of these symptoms should go for a TSH test,” experts noted. Hyperthyroidism can be treated in many ways such as TSH (thyroid stimulating hormone) test, chest X-ray, T4 or thyroxin test. However, a doctor chooses the line of treatment on the basis of a number of variables like the underlying cause of hyperthyroidism, the age of the patient, the size of the thyroid gland and the presence of coexisting medical illnesses. Maintaining a healthy lifestyle, including getting proper diagnosis, weight loss, ample sleep, de-stressing, regular exercise, not ignoring early symptoms and an adequate diet are essential.last_img read more

VIDEO Projected 1st rounder Ed Oliver went off on head coach Major

first_imgHouston star defensive tackle – and projected high first rounder – Ed Oliver didn’t play in the Cougars 48-17 thumping of Tulane, but he saw plenty of action on the sidelines when an argument with Head Coach Major Applewhite over a coat went nuclear on national television.The scene unfolded when Applewhite saw Oliver – inactive for the fourth game in a row – standing on the sidelines in an oversized team coat. Applewhite told Oliver to remove the coat because it violated a team rule that only dressed, active players get to wear the specific jackets.After Applewhite got grabby and tried to physically remove the coat, Oliver lost it and began screaming at his head coach all the way to the locker room while being restrained by teammates after the half ended. It’s hard to blame Oliver. It sounds like a dumbass rule and Applewhite doesn’t need to be grabbing all over him on national TV, or ever. It’s bush league.Oliver didn’t return to the sidelines for the second half, and he shouldn’t be in any hurry to return at all. He’s better off getting healthy to help his draft stock instead of risking injury for Major Coatsnatcher.Major Applewhite told Ed Oliver he couldn’t wear one of those black jackets…… And Ed Oliver went off. #Houston pic.twitter.com/2n9MF41u55— #FreePhillipDorsett (@ftbeard_17) November 16, 2018last_img read more