Month: August 2019

Month: August 2019

first_imgHoverit explains that sitting in the levitating lounger is “like floating on a cloud.” Credit: Hoverit, Ltd. Citation: Hoverit Unveils MagLev Chair (2008, January 17) retrieved 18 August 2019 from https://phys.org/news/2008-01-hoverit-unveils-maglev-chair.html The company has not released many details about how the magic is done, but they confirm that the chair gives the sensation of floating on air. The product is hand-built, and designed with state-of-the-art CAD software. The base of the chair floats up and down on two guide bars, presumably so that it won´t float away. The base has castor wheels to make the two-piece furniture easy to move.The Lounger not only feels unique, but it looks stylish, as well. The magnetic furniture is made of clear acrylic which allows you to see every component. Although there is no word yet on when it will go on sale (or its price), each lounger comes with a clear anti-scratch mat and a limited edition certificate and serial number.Thanks to the magnetic field it exudes, perhaps the floating chair will also have health benefits, the company suggests. According to its Web site, “Permanent magnets can also help back, muscular problems and headaches, so our furniture not only looks good – it may make you feel good too.”Hoverit will be demonstrating its revolutionary magnetic furniture at the Ideal Home Centenary Show, which takes place March 14 – April 6 in Earls Court London.via: InventorSpot.comMore information:Hoverit.co.uk British company Hoverit, Ltd., has recently introduced “The Lounger,” a chair that defies gravity by hovering a few inches above its base. The Lounger uses permanent magnets in the chair and base to life the chair in the air. 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


Month: August 2019

first_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. Citation: AMD Athlon X2 7750 Black Edition 2.7GHz CPU (2008, December 17) retrieved 18 August 2019 from https://phys.org/news/2008-12-amd-athlon-x2-black-27ghz.html Cinematic Shooter to Leverage AMD’s Advanced 64-bit Architecture for Improved Game Performance AMD has now taken everything they have learned with the Phenom series and built on it for the AMD Athlon X2. The Athlon X2 Series offers some of the same features as the past Athlon X2 series processors, but adds new ones, like an L3 Cache, HyperTransport 3.0 and a max TDP of 95 watts.The Athlon X2 7750 has 2 x 512MB of L2 Cache and 2MB shared of L3 Cache. This new version of the Athlon X2 now runs on a HyperTransport 3.0 bus, which for the X2 7750, with an HT speed of 1800MHz gives you a maximum 3,600MTs or 7,200MBs. The X2 7750 also features a maximum TDP (thermal design power) of 95 watts. According to AMD this is the maximum amount of power the CPU will draw and dissipate under normal operating conditions.The new AMD Athlon series comprises the 2.5GHz Athlon X2 7550, which will be available only to system builders, and the 2.7GHz Athlon X2 7750 BE (Black Edition) with an unlocked multiplier for improved overclocking priced at $79. © 2008 PhysOrg.comcenter_img (PhysOrg.com) — AMD has introduced a new dual-core desktop processors aimed at the value end of the consumer market. The new Athlon X2 7000 series, which is available now, are the company’s first dual core chips based on its Phenom quad design. Explore furtherlast_img read more


Month: August 2019

first_img As all those who have taken very many chemistry courses know, the Haber-Bosch process involves heating a potassium-doped iron catalyst under high pressure, then mixing it over with hydrogen gas to generate the end product, ammonia.What Holland and his team are trying to do is recreate the same process using a different catalyst. Instead of the regular iron catalysts used in current processes, they would like to use a soluble iron catalyst, which most agree would allow for the process to work under room temperatures. Unfortunately, work by others in trying the same thing has thus far resulted in less than dramatic results, i.e. not enough ammonia was produced.This new research however looks more promising. What the team has done so far is develop a new iron material that will react with nitrogen gas when exposed to potassium which generates a material that has two nitrides which contain a mixed iron nitride core – which will react with hydrogen gas to create a reasonably large amount of ammonia.While this doesn’t exactly solve the puzzle of how to get the H-B process to work at room temperature and at normal pressure (because the iron is consumed, thus it’s not truly catalytic) it is a step in the right direction, and the team is optimistic that because of knowledge gained in their experiments, they will be able to build a complex that is truly catalytic, which will then lead to a real solution to the underlying problem. (PhysOrg.com) — The Haber-Bosch process, known throughout the world as the means by which ammonia is made for use in fertilizer, has been under study for at least as long as the agricultural revolution has been underway. While the current system clearly works, it’s been used to feed the billions of people on the planet for the past several decades; it’s also costly due to the high temperature and pressure involved. If a way could be found to produce the same result at non-elevated temperatures, the production costs would come down dramatically resulting in reduced food prices the world over. No small thing considering we just welcomed the seven billionth person just last week. The good news is that some progress is being made. Patrick Holland and his colleagues at the University of Rochester, and at the Max Planck Institute in Germany, describe in their paper published in Science, how they have been making inroads into using a soluble iron compound to promote the process. Flow diagram for the Haber Bosch process. Image: Wikipedia. Explore further © 2011 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 Citation: Researchers moving closer to a soluble solution to Haber-Bocsh process (2011, November 11) retrieved 18 August 2019 from https://phys.org/news/2011-11-closer-soluble-solution-haber-bocsh.html Journal information: Science More information: N2 Reduction and Hydrogenation to Ammonia by a Molecular Iron-Potassium Complex, Science 11 November 2011: Vol. 334 no. 6057 pp. 780-783. DOI: 10.1126/science.1211906ABSTRACTThe most common catalyst in the Haber-Bosch process for the hydrogenation of dinitrogen (N2) to ammonia (NH3) is an iron surface promoted with potassium cations (K+), but soluble iron complexes have neither reduced the N-N bond of N2 to nitride (N3–) nor produced large amounts of NH3 from N2. We report a molecular iron complex that reacts with N2 and a potassium reductant to give a complex with two nitrides, which are bound to iron and potassium cations. The product has a Fe3N2 core, implying that three iron atoms cooperate to break the N-N triple bond through a six-electron reduction. The nitride complex reacts with acid and with H2 to give substantial yields of N2-derived ammonia. These reactions, although not yet catalytic, give structural and spectroscopic insight into N2 cleavage and N-H bond-forming reactions of iron. New revelations in ammonia synthesislast_img read more


Month: August 2019

first_img Explore further Research questions the educational possibilities of some TV and computer games A position winning for white and one not winning. Image from “Learning Games from Videos Guided by Descriptive Complexity” by Łukasz Kaiser 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. Citation: Computer turns into boardgame master of all it surveys (2012, July 10) retrieved 18 August 2019 from https://phys.org/news/2012-07-boardgame-master-surveys.html More information: liafa.jussieu.fr/~kaiser/pub/l … ptive_complexity.pdf “The presented algorithm requires only a few demonstrations and minimal background knowledge, and, having learned the rules, automatically derives position evaluation functions and can play the learned games competitively,” according to the paper. “Our main technique is based on descriptive complexity, i.e., the logical means necessary to define a set of interest. We compute formulas defining allowed moves and final positions in a game in different logics and select the most adequate ones.”He used software that processed video clips to recognize the board, pieces, moves, and outcomes. The system could examine viable moves, draw data from all possible outcomes, and proceed with an optimal calculated move. The video recognition procedure was implemented in C++ and the game learning algorithm in OCaml. Both were integrated with Toss, a game playing program. Toss is an open source project hosted by SourceForge and distributed under the BSD license.He used relational structures that recognize rows, columns and diagonals of a boardgame, and made use of different logic systems —pure first-order, existential and guarded. Additionally, a General Game Playing program enhanced the system’s learning power to play tactically and know legal moves. (General Game Playing is the design of AI programs that can play more than one game successfully. The system is valued by researchers for use beyond gaming to an intelligence support for search and rescue missions.)Kaiser said he chose to use games as a primary learning tool because they are models of real-world interaction scenarios, making the results significant in a broader context. “Systems able to learn from visual observations are of central importance in many fields, especially in autonomous robotics and interactive computer vision,” he said.The tests for Kaiser’s experiment were run on a laptop with 4GB RAM and a2.13GHz Intel L9600 processor. The computer’s performance depends on the complexity of the game. Nonethtless, observers agree that the significance of Kaiser’s efforts is to demonstrate that software can learn the rules of a game with a modest amount of external input. © 2012 Phys.Org (Phys.org) — Igniting interest in computer logic and gaming, a paper titled “Learning Games from Videos Guided by Descriptive Complexity” shows how computer systems can successfully learn how to play boardgames, just by its watching two-minute videos of humans playing and can then proceed to try to beat them at their own game. Łukasz Kaiser, the author of the paper, studies logic and games at Paris Diderot University in France. His research effort was to introduce a system for learning board game rules from brief videos and demonstrate it on several well-known games—such as Connect4,Gomoku, Pawns, and Breakthrough.last_img read more


Month: August 2019

first_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. Journal information: Journal of Systematic Palaeontology © 2013 Phys.org More information: The oldest known metriorhynchid super-predator: a new genus and species from the Middle Jurassic of England, with implications for serration and mandibular evolution in predacious clades, DOI:10.1080/14772019.2012.704948AbstractThe Oxford Clay Formation of England has yielded numerous sympatric species of metriorhynchid crocodylomorphs, although disagreement has persisted regarding the number of valid species. For over 140 years teeth reminiscent of the genus Dakosaurus have been known from the Oxford Clay Formation but these have never been properly described and their taxonomy and systematic affinity remain contentious. Furthermore, an enigmatic mandible and associated postcranial skeleton discovered by Alfred Leeds in the Fletton brick pits near Peterborough also remains undescribed. We show that this specimen, and several isolated teeth, represents the oldest known remains of a large-bodied predatory metriorhynchid. This material is described herein and referred to Tyrannoneustes lythrodectikos gen. et sp. nov. This species has a unique occlusal pattern: the dentition was arranged so that the posterior maxillodentary teeth interlock in the same plane and occlude mesiodistally. It is the first described crocodylomorph with microscopic denticles that are not contiguous along the carinae (forming short series of up to 10 denticles) and do not noticeably alter the height of the keel. Additionally, the dorsally expanded and curved posterior region of the mandible ventrally displaced the dentary tooth row relative to the jaw joint facilitating the enlargement of the dentition and increasing optimum gape. Therefore, Tyrannoneustes would have been a large-bodied marine predator that was well-suited to feed on larger prey than other contemporaneous metriorhynchids. A new phylogenetic analysis finds Tyrannoneustes to be the sister taxon to the subclade Geosaurini. An isolated tooth, humerus, and well-preserved mandible suggest a second species of metriorhynchid super-predator may also have lived in the Oxford Clay sea. Finally, we revise the diagnoses and descriptions of the other Oxford Clay metriorhynchid species, providing a guide for differentiating the many contemporaneous taxa from this exceptional fossil assemblage. Father of flying fish found in China, palaeontologists say Explore furthercenter_img Tyrannoneustes lythrodectikos, meaning “tyrant swimmer that bites” in Latin, was found in 1919 in a clay pit near the British town of Peterborough (the Oxford Clay Formation) by an amateur bone collector. Since that time it has resided, hidden away in Glasgow’s Hunterian museum. The skeletal remains include a jawbone with serrated teeth that the researchers, from the University of Edinburgh describe as an indication that the creature was a super-predator – one that preys on animals that are as big as it is, or even bigger.The research team, led by Mark Young, says the time period during which the tyrant swimmer lived would have had it swimming in the shallow seas that covered much of Europe and England – along with other large marine predators. At the time, the area consisted of a chain of islands. They believe T. lythrodectikos would have been a very strong swimmer – it had a fluked tail and forelimbs that resembled flippers and was able to open its mouth very wide to allow for biting into large prey. It would have been both a formidable hunter and an elusive target for other larger marine animals. But if caught, would not have been difficult to eat as it lacked the bony armor of other species of the time.The Middle Jurassic period, as has been glamorized by Hollywood, was a time during which many very large animals existed, many of them predatory. Their existence, scientists say, indicates a time when there was a very healthy food chain.The team adds that the species is the oldest known super-predator, and notes that little research had been done on the skeletal remains over the near century since it was brought to the museum. They also report that no stomach contents were found, thus they can’t say for sure what the animal ate. (Phys.org)—Researchers examining a fossil specimen discovered in a museum storage bin have found it to be the remains of a super-predator that lived during the Jurassic Period, around 165 million years ago. They describe the specimen, named Tyrannoneustes lythrodectikos, in their paper published in the Journal of Systematic Palaeontology, as looking like a cross between a modern dolphin and a shark or crocodile. Credit: University of Edinburgh Citation: Fossil remains in museum found to be 165 million year old marine super-predator (2013, January 29) retrieved 18 August 2019 from https://phys.org/news/2013-01-fossil-museum-million-year-marine.htmllast_img read more


Month: August 2019

first_imgA composite image of the Western hemisphere of the Earth. Credit: NASA Three researchers in France have authored “How ocean waves rock the Earth: Two mechanisms explain microseisms with periods 3 to 300 s,” published in Geophysical Research Letters, a journal of the American Geophysical Union (AGU). The paper attempts to explain the source of Earth’s ringing sound. Could it be because of earthquakes? Scientists were aware that earthquakes could cause the Earth to ring, for days or months. That reason did not fit other instances. Even in the absence of earthquakes, seismologists said in the 1990s, the planet constantly vibrates at very low frequencies, which they could make out with seismic instruments. But why? Call it the mystery of the Noise—this continuous vibration draws scientists to search for explanations. Wired.co.uk brought out some interesting points about the low-frequency sound, which though inaudible to human ears can be detected by seismic instruments. There was a range of thoughts about why. “Theories suggested everything from electromagnetic radiation to earthquakes and secret military operations might be to blame. Although the sound is almost certainly too faint for humans to hear, some people claim to be plagued by a ‘tinnitus’-like noise—including many residents of Bristol in the 70s, who said the sound caused headaches and even nosebleeds.”Nanci Bompey in the AGU GeoSpace blog reviewed the theories which the authors of the recent paper examined. One such theory had to do with ocean waves moving in opposite directions. Colliding waves make weak, “microseismic” waves that add up to a generalized ringing. They used models and found that opposing ocean waves could initiate a kind of seismic waves – those that take 13 seconds or less to complete one oscillation. The theory did not hold up when it came to slower oscillating seismic waves.The researchers then examined the theory that suggests the movement of waves over the bottom of the ocean generates slower oscillating, very long waves. “Long ocean waves can extend all the way down to the seafloor. As they make their way back and forth to the open ocean from the coast, these long waves travel over the bumpy ocean bottom. The pressure of the ocean waves on the seafloor generates seismic waves that cause the Earth to oscillate, said Fabrice Ardhuin, a senior research scientist at Centre National de la Recherche Scientifique in Brest, France, and lead author of the new research.” So one can also point to pressure of these long ocean waves on the sea floor.The authors’ conclusion, said Bompey, was that “instead of one theory explaining all of the microseismic activity, both theories are needed – one to explain the shorter seismic waves and another to explain the longer seismic waves responsible for the Earth’s hum.”Ardhuin said that understanding where the seismic signals were coming from could help researchers look for fainter seismic signals. That, he said, could allow them to better detect faint earthquakes far away from seismic stations or nuclear explosions. Explore further Citation: Source of Earth’s ringing? French team views ocean waves (2015, April 20) retrieved 18 August 2019 from https://phys.org/news/2015-04-source-earth-french-team-views.html More information: Ardhuin, F., Gualtieri, L. and Stutzmann, E. (2015), How ocean waves rock the Earth: Two mechanisms explain microseisms with periods 3 to 300 s. Geophys. Res. Lett., 42: 765–772. DOI: 10.1002/2014GL062782AbstractMicroseismic activity, recorded everywhere on Earth, is largely due to ocean waves. Recent progress has clearly identified sources of microseisms in the most energetic band, with periods from 3 to 10 s. In contrast, the generation of longer-period microseisms has been strongly debated. Two mechanisms have been proposed to explain seismic wave generation: a primary mechanism, by which ocean waves propagating over bottom slopes generate seismic waves, and a secondary mechanism which relies on the nonlinear interaction of ocean waves. Here we show that the primary mechanism explains the average power, frequency distribution, and most of the variability in signals recorded by vertical seismometers, for seismic periods ranging from 13 to 300 s. The secondary mechanism only explains seismic motions with periods shorter than 13 s. Our results build on a quantitative numerical model that gives access to time-varying maps of seismic noise sources.center_img © 2015 Phys.org URI oceanography student uses crashing waves on shorelines to study Earth’s interior Journal information: Geophysical Research Letters 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


Month: August 2019

first_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. Artist’s impression of the two-qubit logic gate device developed at UNSW. Each electron qubit (red and blue in the image) has a ‘spin’, or magnetic field, indicated by the arrows. Metal electrodes on the surface are used to manipulate the qubits, which interact to create an ‘entangled’ quantum state. Credit: Tony Melov/UNSW © 2015 Phys.org (Phys.org)—It was another good week for physics; the Nobel Prize in physics was awarded to Takaaki Kajita of Japan and Arthur McDonald of Canada for discovering a missing piece in the neutrino mass puzzle. And a team working in Australia announced that a crucial hurdle was overcome in quantum computing—they demonstrated a two-qubit logic gate, and did it in silicon. Also a pair of physicists Hal Haggard and Carlo Rovelli in France asked: What are white holes? They are looking into whether the whole idea might be more then purely theoretical. Citation: Best of Last Week—White holes, elephants and cancer and the impact of dominating parents (2015, October 12) retrieved 18 August 2019 from https://phys.org/news/2015-10-weekwhite-holes-elephants-cancer-impact.htmlcenter_img Explore further Nobel Prize for missing piece in neutrino mass puzzle (Update) In other news, a team of researchers with the University of Illinois partnered with a group in Hungary and together they found that an AI machine achieved an IQ test score of a young child. The machine was ConceptNet, a project at MIT, and the findings represent another leap for computer smarts. Also, a company called Light introduced a multi-aperture computational camera—it is actually 16 cameras in one box taking pictures using ten of the lenses at a time to capture multiple focal lengths. And a trio of researchers with Wayne State University and Pennsylvania State University announced that they had found a way to convert harmful algal blooms into high-performance battery electrodes. Also a team at the University of Southampton in the U.K. found a new way to weigh a star—by using math models, theory, super-fluidity and glitches in pulsars . Also researchers at Arizona State University made worldwide headlines due to a Newsweek article on how elephants provide big clues in the fight against cancer—turns out they have a gene that is 20 times more prevalent than in any other mammal. Also another team of researchers at Harvard University announced that they had massively edited the genome of pigs to turn them into perfect human organ donors.And finally, if you are the offspring of a domineering mom or dad, a team of researchers at the University of Sussex in the U.K. has conducted a study that shows how dominant parents affect kids’ self-worth. And it depends, apparently, on which country you grow up in.last_img read more


Month: August 2019

first_img No peak in sight for evolving bacteria Explore further Escherichia coli. Credit: Rocky Mountain Laboratories, NIAID, NIH © 2015 Phys.org One of the foundations of evolution is that organisms change due to challenges they face in their environment, as new challenges arise, those adaptations that best suit the situation are favored, leading to an improvement in fitness. Some prior research has suggested that such adaptations would follow a hyperbolic curve—evidence from this long term effort, suggests that a power-law curve might be more accurate, at least in one such case.The LTEE began in 1988 when a team of researchers at the university, led by Richard Lenski, took a single sample of e. coli, separated it into 12 separate identical flasks held in identical environments and then watched and to see how they might evolve over the years. Periodically, samples have been removed and studied with some being put into deep freeze for later study. Over the past 27 years, the bacteria has produced thousands of new generations—one reached 50,000—offering the researchers a unique opportunity to see evolution in action.In comparing the current generations with the thousands that came before them, the team acknowledged that they fully expected that increases in fitness would level off, and perhaps stop altogether because of the unchanging environment in which they lived—there were no new challenges and all of the samples lived almost exactly the same way. The team did note that there were differences in degrees of sustained fitness among samples in the flasks, but they were minor. They also noticed that while the increases in fitness had slowed over the years, it did not appear to be on a course that would show it stopping at any point. Thus, they suggest it appears to follow more of a power-law curve than anything else. For that reason, the researchers have advised that the experiment continue, allowing future researchers to see if the bacteria will offer any other surprises. Citation: Long term study shows bacteria continue to show sustained fitness in unchanging environment (2015, December 16) retrieved 18 August 2019 from https://phys.org/news/2015-12-term-bacteria-sustained-unchanging-environment.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. More information: Richard E. Lenski et al. Sustained fitness gains and variability in fitness trajectories in the long-term evolution experiment with , Proceedings of the Royal Society B: Biological Sciences (2015). DOI: 10.1098/rspb.2015.2292AbstractMany populations live in environments subject to frequent biotic and abiotic changes. Nonetheless, it is interesting to ask whether an evolving population’s mean fitness can increase indefinitely, and potentially without any limit, even in a constant environment. A recent study showed that fitness trajectories of Escherichia coli populations over 50 000 generations were better described by a power-law model than by a hyperbolic model. According to the power-law model, the rate of fitness gain declines over time but fitness has no upper limit, whereas the hyperbolic model implies a hard limit. Here, we examine whether the previously estimated power-law model predicts the fitness trajectory for an additional 10 000 generations. To that end, we conducted more than 1100 new competitive fitness assays. Consistent with the previous study, the power-law model fits the new data better than the hyperbolic model. We also analysed the variability in fitness among populations, finding subtle, but significant, heterogeneity in mean fitness. Some, but not all, of this variation reflects differences in mutation rate that evolved over time. Taken together, our results imply that both adaptation and divergence can continue indefinitely—or at least for a long time—even in a constant environment. (Phys.org)—A team of researchers working on Michigan State University’s Long-Term Evolution Experiment (LTEE) has found that even after nearly thirty years living in an unchanging environment, generations of Escherichia coli continue to show improvements in fitness. In their paper published in Proceedings of the Royal Society B, the team describes the nature of their long term experiment and their surprise at the continual evolution of the simple bacteria. Journal information: Proceedings of the Royal Society Blast_img read more


Month: August 2019

first_imgEach individual was randomly given either a testosterone-boosting medication or a placebo and was assigned to a task designed to measure aggression. The men were told they would be playing a computer game against a player who was in another room. (The player was actually fictitious.) In the game, participants received points that they could exchange for money at the end of the task. They had to press a key 100 times to earn a single point worth 50 cents. Throughout the game, the computer screen would signal that the player had lost a point, indicating that the other, unseen player had stolen a point from them. In response, the men could either continue earning points by pressing the key, press a different “protect” key to safeguard their points for a variable amount of time, or press a third “steal” key to take a point away from the other player. One of the key targets in a new study is testosterone — although people often link the hormone with aggressive behavior, there is limited evidence to back that popular notion. To explore the relationship further, an international research team led by Shawn N. Geniole at the University of Vienna decided to investigate the neurobiological aspects of aggression and personality in men. Their findings are reported in Psychological Science. The scientists recruited men ages 18 to 40 for the study. The 322 participants completed personality questionnaires. Geniole’s team used the responses to develop a personality-risk score for each participant, with higher scores indicating greater dominance, less self-control, and more focus on their own needs and preferences. The participants provided saliva samples that the researchers used to determine baseline testosterone concentration; they also provided mouthwash samples that were used to extract DNA. Researchers have begun to investigate whether hormonal and genetic factors, when combined with certain personality traits, have something to do with aggressive behavior. This research did not look at behavior beyond the aggressive behavior shown in the experimental task. But the findings raise the possibility that the men who have a fiery interaction of testosterone, personality, and a certain genetic feature are the same guys who cut you off in traffic and speed through red lights. If the results hold up in real-world scenarios, scientists may someday be able to use a blend biological and psychological measures to identify people at greatest risk for dangerous driving. Some of the participants were told they would not get to keep the points they stole. In other words, they would only be able to reduce the other player’s earnings but would reap no financial benefit as a result. Previous research using this experimental approach has shown that people who self-report as aggressive tend to steal more points compared with less-aggressive individuals.   Geniole and colleagues suspect that the combination of testosterone, high personality risk, and a certain genetic trait combine to increase aggression, in part by increasing activity in reward-related regions of the brain. The researchers are interested in expanding on these findings by looking at other anger-related brain responses and investigating whether the effects are similar in women. For many people, driving seems to provide an outlet for their most pugnacious tendencies. They’re the people who cut you off, flash their headlights and honk, and recklessly weave in and out of traffic at high speed. And they’re a danger. The American Automobile Association recently estimated that 56% of car accidents result from aggressive driving. Reference Are these drivers simply more easily provoked by congested roads, or are they more prone to risk-taking? Could biology be at play? Results showed that men with higher personality-risk scores (suggesting high dominance and low self-control) were more vulnerable to the aggression-inducing effects of testosterone than were men with lower risk scores. But the testosterone effects seemed especially potent for men with a specific characteristic in the androgen receptor (AR) gene, which directs the development of male sexual characteristics. Additionally, these men reported experiencing more pleasure (but less anger) in the game. Next, the participants filled out a questionnaire rating the extent to which stealing points felt good and the level of anger they felt when their partner stole their points. The researchers then collected a second round of testosterone and DNA samples. Geniole, S. N., Procyshyn, T. L., Marley, N., Ortiz, T. L., Bird, B. M., Marcellus, A. L., … Carré, J. M. (2019). Using a psychopharmacogenetic approach to identify the pathways through which—and the people for whom—testosterone promotes aggression. Psychological Science, 30(4), 481–494. doi.org/10.1177/0956797619826970.last_img read more


Month: August 2019

first_imgPets are a part of your family, understood. You choose to make them a part of your celebrations, understood. But many do not understand the grave effect which the celebrations might have on them. Since Holi is just round the corner, here are a few tips to keep your pooch all safe and secure whilst the joy is on.Most dog owners feel that as long as they use dry colours on their pets, there’s no harm. But the truth is, the presence of lead, which acts as an accumulative poison, makes these colours a high-risk material for pets. Inhalation of colour powder may cause nasal irritation and possibly respiratory allergy or infection. Pet parents also need to know that most dogs get paranoid when you rub colours on them, since it very often gets into their eyes and nose, making them very uncomfortable. They also tend to lick their body, and the taste of dry colours makes them prone to throwing up. Some breeds are so sensitive that they gets rashes. Also Read – ‘Playing Jojo was emotionally exhausting’According to Dr KG Umesh, Waltham Scientific Communication Manager, South Asia Mars India, ‘We must ensure that during celebrations like these, we keep our dogs safe from the colours. We advice people not to try using kerosene, spirits or any hair oil to clean the colour off their coat. A good light shampoo should suffice. If the dog has been hit in the eye by a water balloon, wash the eye with clean water, and if irritation persists, bring the dog to a vet.’ Also Read – Leslie doing new comedy special with Netflix‘It is extremely important to understand that some breeds of dogs are more susceptible to the accidents than others. Puppies, aged dogs and short hair coat dogs are more predisposed to falling victim to these colours than long hair coat breeds. The reason being that sparsely coated regions of body are commonly affected by colours. The pet owner should keep the pet away from children who tend to throw water balloons at the pet and also avoid taking their dogs at places and at times when they are likely to be the target of such insensitive play,’ he added.Indulging in variety of sweets is also customary during Holi. Care should be taken as these foods are rich in butter, cream and sugar and does not go down well with canines and can give them an upset stomach. Keep your pets happy during Holi and double the celebrations!last_img read more


Month: August 2019

first_imgA 100 Many-Splendoured Things displays works of all contemporary art forms i.e. paintings, sculptures, etchings, prints,  post-modern forms such as installations and digital art. The art pieces on display conjure up a world in them and communicate something unique and authentic in different modes. Some of them express the different aspects of time while others speak of the ‘imagined’ and ‘conceived’ realities.This  melange intends to underline the ‘new art experience’ that has emerged in Indian art in recent times. Also Read – ‘Playing Jojo was emotionally exhausting’A large number of senior artistes who have contributed to the Indian art in a significant way as well as members of later generation who have created a niche for themselves in the art world are participating in this show. Every artistes in the exhibition uses a different and unique language such as abstractions or figurative forms,  modernistic or post-modern expressions with their free-flowing, instantaneous aesthetics, and exploration and improvisation of new and unexpected spaces.The show has a well- arranged orchestration of lines, strokes, shapes, colours, textures, and figuration. Also Read – Leslie doing new comedy special with NetflixThe works exhibited deal with the ideas of tradition and modernity. While working in the ‘modern’ and ‘global’ idioms of the day with utmost ease, most of the artistes seem quite aware of their tradition, their ‘rootedness’ in their original landscapes, and have made very meaningful use of being in the two worlds. How the tradition and the nativity meet the modernity and post-modernity, how the ‘local’ conjures up with the ‘global’ and what dimensions are thereby explored can beseen in this particular show.   This show also explicitly expresses the fusion of what is called Indian and Western in the artistic creations.Interestingly, most of the works show that the uniqueness of contemporary Indian art lies in the fact that in spite of it being an integral parat of the global art world, it has the strength of turning the colloquial and native experiences into universal ones. The works represented in this show conjure up a world in them and communicate something unique and authentic in different modes.Where: The Stainless Gallery, Mathura Road When: February 6 – 9 Timings: 11:00 am to 7:00 pmlast_img read more


Month: August 2019

first_imgVisitors thronged India’s first national tribal festival Vanaj, featuring around 900 artists across the country in New Delhi. The week-long the first National Tribal Festival Vanaj got a colourful kick start with Union Minister of Tribal Affairs Jual Oram inaugurating it at Central Park Connaught Place on February 13, amid folk lore’s from artistes coming from the far flung areas of our country. On this occasion the minister announced that this festival will now be an annual feature.  Also Read – ‘Playing Jojo was emotionally exhausting’The five-day event is being organised by the government to conserve and promote the distinctive cultures of the tribal by providing them a national platform. The carnival will run till February 18, showcasing the rich diversity in tribal art and culture. Tribal products, medicines, paintings, art and handicrafts will be put on sale at an exhibition.This festival marks active participation by the artistes from across the length and breadth of the country. It is also a part of the vision of the Prime Minister for uplifting the quality of Tribal lives and will provide an opportunity to the residents of the national capital to enjoy and appreciate the rich tribal culture and heritage.  Also Read – Leslie doing new comedy special with NetflixThe opening ceremony saw Dance performances by the tribal artists from four States. The dances were by Kutia Kondh, Dhemsa and Munda Tribes from Odisha be followed by Dobru and Flute Instrument performance from Gujrat, dance-Toda and Kaniyan from Tamil Nadu and Pandvani gayan and Gond style Karma dance from Madhya Pradesh. In addition the East Zone Cultural Centre presented marvelous performance by the artistes hailing from the north eastern states of our country – Manipur, Meghalaya and Sikkim north eastern states of our country which receive loud cheering from the spectators irrespective of language barriers.  Approximately 900 participants from Assam, Chhattisgarh, Gujarat, Himachal Pradesh, Jharkhand, Kerala, Madhya Pradesh, Maharashtra, Nagaland, Odisha, Rajasthan, Sikkim, Tamil Nadu and West Bengal would be participating. While this would help advertise our diversity, it also helps in national integration. The festival is also intended to conserve and promote the distinctive cultures by providing them a national platform amongst other things.last_img read more


Month: August 2019

first_imgThe Government has asked state-owned oil companies to hold special camps in flood-hit Chennai to replace documents of liquefied petroleum gas (LPG) connections as well as cylinders lost in the natural calamity at concessional rates. Oil Minister Dharmendra Pradhan “has instructed the oil marketing companies to provide all possible relief to the flood and rain ravaged people of Chennai,” an official statement said.For documents lost in the floods, the companies will organise a special camp for issue of documents on priority basis. In cases where cylinders are lost, the companies will charge a nominal Rs 200 per cylinder from below poverty line (BPL) families for the replacement.For above poverty line (APL) families, the affected ones will have to pay Rs 1,200, the manufacturing cost of a cylinder, for the replacement.  “The above proposed measures to be undertaken by the companies are expected to  provide necessary relief to the  affected and distressed people,” the statement added.last_img read more


Month: August 2019

first_imgKolkata: Miscreants tried to extort money from acquaintances of a doctor after hacking his e-mail ID. On November 12 around 4:20 pm, the ID was hacked and a mail was sent. It was found that several people had received thesame mail. The Head of the Department (HOD) of Oncology department at Calcutta Medical College and Hospital, Dr Shibashis Bhattacharya alleged that on November 12 he got a phone call from one of his friends claiming that he sent a mail saying he is in danger and in need of Rs 40,000. Also Read – Rain batters Kolkata, cripples normal lifeOn hearing this, Bhattacharya suspected his e-mail account was hacked. He immediately rushed to a cyber cafe and changed the password. But that did not help. A few hours later, the same mail was sent to another person close to Bhattacharya. It read: ‘I hope you’re doing okay and this e-mail finds you well. Please where are you at the moment? I’m having such a frustrating ordeal right now and need an urgent favor from you. I’m unavailable over the phone, so I will appreciate if you could email me back as soon as you get this.’ Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedWhen the recipient replied through e-mail he was asked to transfer Rs 40,000 to one bank account. It was also mentioned that Bhattacharya was out of town and the money is urgently needed for a person’s surgery close to him. As he is out of the town, he is asking him to provide the money. Everyone found the matter to be fishy and did not tranfer the money. When Bhattacharya came to know that several people in his circle had received the same mail, he lodged a complaint with Cyber Crime Cell in Lalbazar. “I lodged a complaint with the police. They told me that sleuths are probing in to the matter. Thankfully nobody transferred the money to the account otherwise it would have been a disaster,” said Bhattacharya.last_img read more


Month: August 2019

first_imgFrom its superfood properties to its sustainability, Avola almond can help in filling the lost protein and fiber in your body to the fitter you. Avola almonds are bigger in size from the normal variety and are usually used in pastries. Femalefirst.co.uk listed down the benefits of Avola almonds and why one should take it on daily basis:Avola almonds have three times more polyphenol content than Californian almonds. Polyphenol is an antioxidant said to prevent degenerative diseases such as cancer, making it a superfood nut. Also Read – Add new books to your shelfThe water used to grow avola almonds is natural rain water making them the most sustainable nut in the world. Good for you and the environment.Chemical-free and highest concentration of nutrients per gram than any other nut. The nut’s natural hard casing protects it from the elements, ensuring it is not penetrated by any chemicals and also retains nutrients making the avola crop very nutrient rich, which keeps you healthy.Avola almonds are a great way to get your protein hit from a natural source and they are also low in saturated fat. Also Read – Over 2 hours screen time daily will make your kids impulsiveFrom combatting signs of ageing to boosting immunity, Vitamin E has many antioxidant properties and are packed into avola almonds. Vitamin E also promotes good circulation, regulates blood sugar, keeps your heart healthy, and protects against certain cancers.Potassium, calcium, magnesium, phosphorous, and iron are all found in avola almonds and magnesium is the most represented mineral in the nut, which keeps your heart healthy and aids metabolism for weight loss.The nuts are a fantastic source of fibre to help maintain a healthy weight and lower cholesterol levels.last_img read more


Month: August 2019

first_imgWhile strolling or running are beneficial for heart health, light physical activity, such as gardening and folding clothes, may also lower the risk of cardiovascular diseases (CVD) in older women, say researchers. The study showed that such activities might be enough to significantly reduce stroke or heart failure by up to 22 per cent and the risk of heart attack or coronary death by as much as 42 per cent. The association was strong across all racial and ethnic groups, noted the study published in the journal JAMA Network Open. Also Read – Add new books to your shelf”The higher the amount of activity, the lower the risk,” said co-author Andrea LaCroix, Researcher at the University of California, San Diego. “And the risk reduction showed regardless of the women’s overall health status, functional ability or even age. In other words, the association with light physical activity was apparent regardless of these other factors,” LaCroix added. For the study, researchers studied nearly 6,000 women aged 63 to 97. They were made to wear a device which measured their movement 24 hours a day for seven consecutive days. The device was also calibrated by age to distinguish between light, and moderate-to-vigorous physical activity. Most people do not think of folding clothes or walking to the mailbox as physical activity of any kind, the researchers said. “This study suggests that for older women, any and all movement counts towards better cardiovascular health.”last_img read more


Month: August 2019

first_imgEver since two atomic bombs were dropped during World War II, the world has been rightly terrified of nuclear war. The idea of several nations using weapons of mass destruction against each other has left civilians uneasy in the following decades. Even with the end of World War II, the Cold War was quick to begin, due to rising tensions between the Soviet Union and the West. This was a war of ideas, collectivism versus individualism, communism versus capitalism. With both sides suspicious of one another and compounding power, the 45-year-long hostility led to constant fear of nuclear weapons being launched.Throughout this time period, the United States was under no delusions. Should open war break out with the Soviet Union, the decision to use nukes would be swift and both sides would end up firing their arsenals upon one another.The Pantex Plant nuclear weapons assembly and disassembly facility, Carson County, Texas.Therefore, whoever had the most amount of doomsday weapons would be the one making the demands. Both sides rushed into the nuclear arms race, working to produce enough nuclear weaponry to end the world several times over.It was during this production phase that the United States began to transport their nuclear arsenal across the country in what were known as White Trains. These trains were white and heavily armed, complete with sniper turrets, armor and armed guards within. The white trains were made to be inconspicuous, moving nukes across the states to silos without attracting much attention.The white trains would be in operation until 1987 and run by the Department of Energy. While the trains were a national secret, kept hidden to avoid enemy spies from taking notice of weapons being transported, eventually, the citizenry of America took notice. With tensions and fears of nuclear war increasing, especially with the arrival of Ronald Reagan in the 80s, citizens began to speak out about nuclear proliferation. Anti-nuclear leagues began to protest and thousands took to the streets to fight the government’s war preparation policies.Weapons being assembled at Pantex in 1944.One man, Jim Douglas, had moved into a house not too far from a naval base where a white train would roll in, delivering its deadly payload to be loaded onto nuclear subs. This inspired him to begin a citizen’s protest of the use of these white trains to transport weapons of mass destruction. He and his wife started a non-violent campaign to draw attention to these trains.Streamliner Trains – America’s Beautiful LocomotivesWith the aid of the Ground Zero Center for Nonviolent Action, they staged protests all along the route of these trains.Communication networks were formed across America, informing protesters of the routes of these trains. Posters were made, calling for the end to the nuclear arms race and placed along the routes. Prayer vigils and peaceful demonstrations would spring up when a train arrived into town, giving away the position of these white trains to the media.In a particularly memorable act of protest, a nun stood boldly on the tracks, forcing the train to slam to halt before it ran her over.These protests were successful in creating pressure on the Department of Energy, but they refused to buckle. Instead, they tried to get smarter, changing the color of their trains, but the protesters were too savvy to be fooled by that.The trains didn’t move particularly fast, due to their builds and payloads. The unique outfitting of the trains was also a dead giveaway. It didn’t take much to figure out if a train was carrying nuclear armaments or not.This 87 foot railcar, painted as an ordinary Westinghouse railcar (one of the contractors), was a prototype built to carry and launch a single, nuclear-tipped LGM-118A. Photo by Gregory J Kingsley –CC BY-SA 3.0Protesters were arrested for their actions, as the DOE attempted to make it illegal to reveal the position of these trains. However, pressure from the public was too great and in 1987, the white train program was formally discontinued.This was not a tremendous victory for the protesters, however. No matter how noble their ideals were, the United States government simply changed their policy about transporting nuclear weaponry. Instead of using trains, which were easy to track, they switched to using special trucks that would be able to drive across the highways of America, transporting the weapons in secret. This practice of using Safeguard Transporters remains in use today.Read another story from us: During the Cold War space race, the CIA once kidnapped a Soviet space probe, studied it for a night, and returned it without anyone realizingIt is fortunate that in spite of all the preparations, the threats, and the ever-growing nuclear stockpiles, the Cold War never erupted into a hot war. The war of ideas ended without a single missile ever being fired.Andrew Pourciaux is a novelist hailing from sunny Sarasota, Florida, where he spends the majority of his time writing and podcasting.last_img read more


Month: August 2019

first_imgMassachusetts is home to much of the United States’ early history. It was there in Provincetown that the Mayflower pilgrims landed. It was there that the Boston Tea Party happened which was a major turning point to the American colonies become independent. Boston is also home to many significant and historical real estate sites. Among these is Paul Revere’s house, the oldest house in the city and home to one of the most famous revolutionary figures. “Boston, USA – June 9, 2012: The famous Paul Revere house on the Freedom Trail in Boston. Paul Revere was a silversmith and important member of the American Revolution whose famous nighttime ride to warn of the arrival of British forces is an important moment of American history.”Paul Revere was born in Boston on January 1, 1735, the son of French Huguenot immigrant Apollos Rivoire and Bostonian Deborah Hichborn. Rivoire had his own shop as a goldsmith, and changed his name to sound more British, according to Biography.com. The Reveres lived in North End, a part of the city that could be rough at times.The young Paul Revere apprenticed with his father, and became a devoted silversmith. After his father’s demise in 1754, Revere had to take care of his mother and his six siblings, and became the owner of the family shop at just 19-years-old.Paul RevereRevere’s family life was indeed troubled. He married Sarah Orne in 1757, and had eight children from this first marriage. Orne died unexpectedly in 1773. Revere remarried soon after with Rachel Walker, and had another eight children with his second wife.He was able to craft all kinds of objects with his skills in working silver, and in 1756 expanded his business to offer additional services. According to The American Revolutionary War and The War of 1812: People, Politics, and Power by Britannica Educational Publishing, he “also crafted surgical instruments, sold spectacles, replaced false teeth, and engraved copper plates”. It is in fact one of those that gave him his fame.Antique photograph of Paul Revere’s House, BostonThrough his talents in both business and silversmithing, Revere acquired links with wealthy upper class customers from the Boston aristocracy, as well as other artisans like him. Revere himself became a wealthy man. At that time however, the American colonies were hit hard by a series of taxes the British parliament had imposed on them, and particularly the city of Boston.“Boston, USA – June 9, 2012: The famous Paul Revere house on the Freedom Trail in Boston. Paul Revere was a silversmith and important member of the American Revolution whose famous nighttime ride to warn of the arrival of British forces is an important moment of American history.”Recognizing the struggle of many of his clients, and perceiving that this could threaten his own business, Revere joined the patriots’ movement in opposing these taxes. With his background as an artisan rising on the social ladder, he acted as a link between Boston’s middle and upper classes. Revere became friendly with Dr. Joseph Warren, who would later lead the Massachusetts militia at the battle of Bunker Hill on June 17, 1775.The historic landmark, Paul Revere’s home in the north end of Boston MassachusettsRevere became one of the leaders of the colonists, and gained tremendous fame. On March 5, 1770, a group of Patriots called the Sons of Liberty protested the British soldiers stationed in Boston, which they saw as an occupying force. Things turned violent and ended badly for three of them.Paul Revere’s House in Boston in the North End.Revere used the event and his talent to tell the story on a copper plate. The engraving became a famous political cartoon, as well as a propaganda piece against the British. But Revere’s most notable act is undoubtedly the Midnight Ride, during which he took a major part in the beginning of the American Revolutionary War (1775-1783).Boston, Massachusetts, USA, 1957. Street scene at the North Square in Boston with the Paul Revere HouseAs tensions between the colonists and the British rose, the British army decided to launch a surprise attack on the towns of Concord and Lexington, arresting revolutionaries John Hancock and Samuel Adams on the night of April 18, 1775. Joseph Warren informed Revere of the army’s plan, as reported by the official website of Paul Revere House museum.Revere had requested that the Sons of Liberty use lanterns in Boston’s North End to warn him of where the British would come from. One lantern meant they would come from the land, two lanterns meant they came from the sea, which they did.Paul Revere’s House in Boston in the North EndAfter receiving the two lanterns signal, Revere rode his horse all night from Boston to Lexington to warn his fellow patriots of the incoming soldiers, and gather men to oppose them. The faceoff between the British army and the colonists resulted in the battle of Lexington, recognized as the first battle of war.Paul Reveres’ house on the historic Boston Freedom TrailRevere bought the house that is now a museum in 1770. After he sold it in 1800, the house became first a sailor’s boarding house, and an immigrant tenement in the second half of the 19th century. The ground floor was used to host different shops over the years, including a candy store, a cigar factory, an Italian bank, and vegetable and fruit business.“Boston, USA – June 9, 2012: The famous Paul Revere house on the Freedom Trail in Boston. Paul Revere was a silversmith and important member of the American Revolution whose famous nighttime ride to warn of the arrival of British forces is an important moment of American history.”John P. Reynolds Jr., Paul Revere’s great-grandson, bought the house in 1902, to prevent its demolition. Because of its status as the home of an icon of the City of Boston and the American Revolution, Reynolds was able to raise $30,000 in funds to preserve the house. It became one of the earliest house museum of the United States when it opened its doors to the public in April 1908.Read another story from us: This Year’s European Capital of Culture is Also its Oldest City – Take a TourPaul Revere’s house tells the story of life as it was for colonial Americans, and what his personal story in the revolution was. As the oldest building in the city, it is a magnificent testimony to Boston’s significance in America’s early days.Correction: An earlier version of this article had a typo in the title stating 1860 house. It has been corrected to reflect the accurate date of 1680. The correction was made on 7/9/19.last_img read more


Month: August 2019

first_imgDraymond Green and the Warriors continued to limp into the All-Star break with a 123-117 loss to the Blazers in Portland last night, but it wasn’t the only L Draymond took on the night.While Green was speaking with the media after the game, Blazers guard – and Ohio State alum – Evan Turner interrupted the Q & A like Pauly Walnuts to collect from Green on a couple of bets the two placed on the Ohio State/Michigan State basketball and football games this year.Green owed Turner $200 since the Buckeyes stomped the Spartans on the football field (48-3) and on the hardwood (80-64). Green settled up on the spot and went back to taking questions. A bet is a bet, even of it’s only a couple hundy between millionaires.Watch Evan Turner do what he’s done best throughout his entire NBA career. Get paid:Evan Turner comes calling for his $100 mid Draymond Green interview after Ohio State’s win over Michigan State and gets his money!! pic.twitter.com/z1qIps4Ma4— Anthony Slater (@anthonyVslater) February 15, 2018last_img read more


Month: August 2019

first_img The post fight press conference was kind of weird,too. Did you ever watch Fight Cub, and wonder what it would look like as an actual, real-life sanctioned sport? If you did, the Bare Knuckle Fighting Championship main event over the weekend between Artem Lobov and Jason Kight provided some ugly answers.On their last couple brain cells, the two squared off and basically landed haymakers on each other – minus the gloves – for 5 rounds until both their faces resembled bloody pieces of meat. It’s either grotesque or awesome depending on your point of view, or Tyler Durden’s. Like we said, it’s hard to tell the winner from the loser at the end of this one. Advertisementlast_img