In a typical car crash scenario with a pedestrian involved, when the pedestrian is initially impacted by the car he then hits the ground. Most of the fatalities and life-threatening head injuries occur when there is not enough clearance between the bonnet of the car and the underlying engine components. This new model of pedestrian-friendly car bonnet hopes to make use of an aluminium mechanical energy absorber. The absorber hopes to work via a force-absorbing sheet of metal. The metal is etched into a grid format allows for an absorption of the impact energy with less resultant reaction forces, the forces which causes the impact injury. Basically, the bonnet is designed to collapse inward upon impact. When one considers that head impacts account for roughly 14% in the United States and 20% in Europe, this bonnet could save many lives. When the Head Impact Criteria test, a common test to measure the severity of a cars impact on the human head, was applied the test results showed that the Cellbond design reduced the Head Impact Criteria score by 50-60%.The Cellbond car bonnet is currently being assessed by a number of motor manufacturers and the research will continue. (PhysOrg.com) — Cellbond, a division of Encocam Ltd that specializes in impact absorption technology, have teamed up with researchers at Anglia Ruskin University in order to develop and test a new pedestrian-friendly car bonnet design. The new pedestrian-friendly bonnet was designed by Dr. Mehrdad Asadi, of Cellbond. He collaborated with Anglia Ruskin University’s Engineering Simulation Analysis and Tribology (EAST) Group. The bonnet is designed to cut down the number of fatalities and serious injuries that are caused by impacts with pedestrians in car accidents. Red Herring Launches New Research Division Explore further More information: www.cellbond.net/index.aspx Citation: Cellbond creates a pedestrian-friendly car bonnet designed to reduce head injury (2011, February 17) retrieved 18 August 2019 from https://phys.org/news/2011-02-cellbond-pedestrian-friendly-car-bonnet-injury.html © 2010 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.
Citation: Study finds brain locale of metamemory in macaque monkeys (2017, January 16) retrieved 18 August 2019 from https://phys.org/news/2017-01-brain-locale-metamemory-macaque-monkeys.html Journal information: Science Realizing that brain portions lighting up does not always prove that an area of the brain is actually involved in a given activity, the researchers embarked on the third step, numbing the part of the brain in the monkeys that lit up in the MRI machine and then seeing if it impacted their ability to play the memory game. The researchers report that it did, disabling the same part of the prefrontal brain reduced their confidence in their ability to recall a memory, though doing so did not reduce their ability to build new memories or to recall those they already had.The researchers suggest their research might be broadened to the study of metamemory in other animals and perhaps even in humans—and their approach could possibly be applied to other brain functions such as judging how strongly a person or animals feels about the strength of an emotion. Wild capuchin monkeys found able to remember where and when their food was hidden 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: ALMA observations of the multiplanet system 61 Vir: What lies outside super-Earth systems? arXiv:1705.01944 [astro-ph.EP] arxiv.org/abs/1705.01944AbstractA decade of surveys has hinted at a possible higher occurrence rate of debris discs in systems hosting low mass planets. This could be due to common favourable forming conditions for rocky planets close in and planetesimals at large radii. In this paper we present the first resolved millimetre study of the debris disc in the 4.6 Gyr old multiplanet system 61 Vir, combining ALMA and JCMT data at 0.86 mm. We fit the data using a parametric disc model, finding that the disc of planetesimals extends from 30 AU to at least 150 AU, with a surface density distribution of millimetre sized grains with a power law slope of 0.1+1.1−0.8. We also present a numerical collisional model that can predict the evolution of the surface density of millimetre grains for a given primordial disc, finding that it does not necessarily have the same radial profile as the total mass surface density (as previous studies suggested for the optical depth), with the former being flatter. Finally, we find that if the planetesimal disc was stirred at 150 AU by an additional unseen planet, that planet should be more massive than 10 M⊕ and lie between 10-20 AU. Lower planet masses and semi-major axes down to 4 AU are possible for eccentricities ≫ 0.1. (Phys.org)—Astronomers have recently presented new results of observations of a nearby planetary system known as 61 Virginis (or 61 Vir for short). The observations were focused on investigating the system’s debris disk, which could hold many clues to the nature of planetary formation beyond our solar system. The study is available in a paper published May 4 on the arXiv pre-print repository. Citation: Scientists investigate debris disk in a nearby planetary system (2017, May 11) retrieved 18 August 2019 from https://phys.org/news/2017-05-scientists-debris-disk-nearby-planetary.html Explore further 61 Vir is a G-type, 4.6-billion-year-old main-sequence star about the size of our sun, located approximately 28 light years away. The star is known to be orbited by at least three planets that are five, 18 and 23 times more massive than Earth. One of the most intriguing features of this system is a debris disk extending from 30 to at least 100 AU from the star.Debris disks are clouds of planetesimals and dust found in orbits around many stars. Studying such disks could improve our understanding about planet formation and the migration history of planets in planetary systems. With this aim in mind, a team of astronomers led by Sebastian Marino of the University of Cambridge in the U.K., has performed observations of 61 Vir’s debris disk using the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile. These observations were complemented by data from the Submillimetre Common-User Bolometer Array 2 (SCUBA2) installed in the James Clerk Maxwell Telescope (JCMT) at Mauna Kea Observatory in Hawaii.”In this paper, we present the first observations of 61 Vir with ALMA at 0.86 mm, obtained with the aim of studying its debris disc to reveal the location of the parent planetesimals, and place constraints on the presence of planets at large separations that can shape the mass distribution in the disc. (…) In order to obtain the best disc constraints, in our analysis we combine new ALMA band 7 observations and new data at 0.85 mm from SCUBA2 installed on JCMT, thus, incorporating information from small and large angular scale structure,” the researchers wrote in the paper.The new study reveals that the debris disk is larger than previously thought. Marino’s team found that it extends from 30 to at least 150 AU. Combined ALMA and SCUBA2/JMCT observations also show that at 0.86 mm the total disc emission is about 3.7 mJy and the disk has a surface density distribution of millimeter sized grains with a power law slope of approximately 0.1.Moreover, the researchers assume that a yet unseen fourth planet may lurk somewhere in the system between 61 Vir d at 0.5 AU and the inner edge of the disc. They argue that if the disc was stirred at 150 AU by an additional planet, that unseen alien world should have a mass of at least 10 Earth masses and should orbit its host at a distance between 10 and 20 AU.”We found that in order to have stirred the disc out to 150 AU, the planet must be more massive than 10 Earth masses and a semi-major axis between 10 and 20 AU if it has an eccentricity lower than 0.1. Otherwise, for higher eccentricities, it could have a lower mass and a semi-major axis between 4 and 20 AU,” the team concluded. ALMA band 7 (0.86 mm) continuum image of 61 Vir with natural weights and corrected by the primary beam response (FWHM∼ 1700). Credit: Marino et al., 2017. 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. © 2017 Phys.org Visualizing debris disk ‘roller derby’ to understand planetary system evolution
Two distinct styles of Indian Classic music, Carnatic and Hindustani are to meet at a juncture. ‘Interaction between Hinduastani and Carnatic Music’ is scheduled on 23 March at Indira Gandhi National Center for Arts, Janpath. Dr Karan Singh, President of Indian Council for Cultural Relations and a member of Rajya Sabha, will be inaugurating the event. Vocalists Dr T V Goplakrishnan and Dr Prabha Atre will be joining the Sitar of Pandit Nayan Ghosh in a session. Carnatic duo of Dr T V Gopla Krishnan and Madurai G S Mani will be joining their Hindustani counterpart Dr Prabha Atre following the first session. The event will be reaching its high point with the concert of Carnatic Vocalist K Ganesh Kumar. The event is presented by International Foundation of Fine Arts in association with Indira Gandhi National Center for Arts in association with the government.DETAILPlace: Indira Gandhi National Center for Arts,C V Mess, Janpath. Date: 23 MarchTime: First performance at 10.30 am
Her paintings are a reflection on recurring themes of fantasy and reality, which are painted in a combination of abstract and realistic styles.Mostly, her art is an expression of her life, moods and feelings, though the techniques to depict these change and evolve constantly.The participating artists are from Australia, Holland, India, Portugal and the United Kingdom. The show consists of 100 works, which include a range of drawings, paintings, photographs and digital artwork. All the art works are a reflection of the varied mix of nationalities, cultural backgrounds, interests and age groups. Also Read – ‘Playing Jojo was emotionally exhausting’Not bound to any particular genre this exhibition is made up of an interesting mix of different concepts, styles, methods and mediums creating a whole that is somehow greater than merely the sum of its parts. A special addition to the show is a selection of rare water colours by the late John Martyn, proceeds from the sale of his works will go towards the benefit of the John Martyn Memorial School for underprivileged children.When: 15-18 November, 11 am onwardsWhere: The Stainless Gallery
Kolkata: A person was injured when a bomb exploded beside the railway tracks in between Dum Dum and Dum Dum Cantonment railway station on Monday morning. The injured person, identified as 26-year-old Basudeb Biswas is a paper picker. The police have recovered a drum full of 29 crude bombs from there. According to police sources, Biswas had gone to pick papers beside the rail tracks at around 7.30 am. He found a metallic container and hit it hard on the ground in an attempt to break the same which exploded with a loud noise. Also Read – Heavy rain hits traffic, flightsPeople from the neighbourhood rushed to the spot and found Biswas writhing in pain with severe injuries in his right hand with blood oozing out. He was rushed to RG Kar Medical College and Hospital.Doctors informed that a portion of his right hand had been badly affected due to the intensity of the blast. He has been admitted to ICU and his condition is stated to be critical. Biswas is a resident of Sandalia in Barasat, North 24-Parganas.A police team from Dum Dum police station and Government Railway Police (GRP) rushed to the spot and found a drum full of bombs at the spot. One of the busiest train routes Sealdah – Bongoan runs through the area where the incident occurred. However, there was no disruption of train services due to the incident. Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killedLocals alleged that the place, in recent times, has become a haven of anti-socials who would indulge in all sorts of activities besides the railway tracks after sundown.”We have seen them drinking liquor or taking ganja but have never seen any firearms or bombs,” a local resident said.”We are investigating how so many bombs reached the spot and whether there was any plan in accumulating so many explosives at the place beside Bagjola Canal,” a senior police official of Barrackpore Commissionerate added.
Samajwadi Party supremo Mulayam Singh Yadav on Sunday accused the BJP and Prime Minister Narendra Modi of betraying the people by not fulfilling the promises made in the election manifesto and claimed his party has fulfilled all the promises it made during the Assembly polls.“BJP leaders and Modi are betrayer (dhohkebaj). They have made a number of promises during Lok Sabha elections but fulfilled none of them,” Yadav said while addressing a Panchyat sammelan here.He claimed that unlike others, SP acts on whatever it says. “SP government has fulfilled all the promises it made during assembly polls in three years. Though the promises were to be fulfilled in five years, but we did it early,” Yadav said.He also accused Modi of being rude and claimed that he had recently scolded a minister, who is very gentle, in his cabinet and even threatened to sack him.“Unhone (Modi) apne ek seedhe mantri ko daant kar kaha tumhe nikal denge. Wo pareshan tha ki kya ho gaya. (He scolded his ‘gentle’ minister, threatened to sack him. The minister was perturbed as to what he has done),” he said, adding that such behaviour was not meted in his party, where everyone was given due respect.
Kalimpong: In February, Chief Minister Mamata Banerjee’s visit to Darjeeling was marred due to the 104-day agonizing standoff over the statehood issue which left the people of the Hills not only jobless but they also became apprehensive about their future.Three months later when Banerjee’s convoy pulled up in front of Jarvie Hall, Dr. Graham’s Homes in Kalimpong on Wednesday for the administrative review meeting, the turnaround was evident with the region thronging with tourists.Emphasising on the development map, the Chief Minister advised the state government authorities in Darjeeling and Kalimpong districts to focus on the water crisis, sewerage, construction and upkeep of roads and waste management.Speaking at the administrative review meeting of the two districts in Kalimpong, she said: “Darjeeling and Kalimpong have immense potential. There is unmatched natural beauty here. It is your duty to present a clean and green Darjeeling to the tourists who visit these places. For the next two years, we should concentrate on four key areas — water, sewerage, roads and waste management.”She asked the GTA and Hill Municipalities to sit with the Municipal and PHE departments in Kolkata during the next 10 days and work out a consolidated plan to resolve the drinking water crisis in the Hills.She also insisted that henceforth funds for construction of houses of the beneficiaries through the 15 development boards should go directly to their bank accounts in two instalments. “We have received complaints that there are lots of gaps in the present system of allocation of funds by the boards. This has to stop and there should be a proper audit of the accounts,” she stated. The Chief Minister spoke on the new avenues for employment generation for the youth and stressed on skill development to impart training in beautician courses, hospitality, as tourist guides and in the medical field as well.”Buses can be given to youths and Self Help Groups through the Gatidhara scheme,” stated Banerjee.Speaking of the immense potential in the field of tourism, she added: “Tourism industry is one of the most important industries of Bengal. We are giving a lot of emphasis to North Bengal as this place has a lot to offer. All projects have to be finished on time.”She asked the state Tourism department and the GTA to renovate the Swiss Cottages in Mirik. De-siltation of the Mirik Lake, landscaping including gardens and pathways around the area is on the anvil.Inquiring about the progress of work at Tiger Hill, she stated that the gallery needs to be renovated. Around 19 tourist cottages are said to come up at Tiger Hill in Darjeeling. The Chief Minister also asked the Power department to look into the electricity problems faced by Lava, Loleygaon and Rishap in the Kalimpong district. Kalimpong MLA Sarita Rai requested the CM if a B Ed. College could be opened in Pedong in Kalimpong. The Chief Minister assured her that she would look into the matter.A proposal has also been given for six new police stations in Darjeeling and three in Kalimpong district. A new administrative building is being constructed in Kalimpong as well. Around 2 acre of land has been allotted for the Police Lines and correctional home in Kalimpong.Banerjee also inquired about the 100 day work scheme in Darjeeling and Kalimpong districts. Binay Tamang, Chairman, Board of Administrators, stated that around 500 schemes are underway in the GTA.”Land right documents (pattas) will be handed over to 271 beneficiaries from the forest villages of Kalimpong on Thursday at Lohapool,” stated Tamang. Banerjee also inaugurated a number of projects on Thursday.
Kolkata: The monsoon in Bengal is going to set in from June 9. There is prediction of sporadic but heavy rainfall with the monsoon setting in.According to the Indian Meteorological Department, “Conditions are also likely to become favorable for further advancement of South-West monsoon into most parts of Arabian Se…Chhattisgarh, Odisha, West Bengal and Sikkim, the remaining parts of Northeastern states and mostparts of Bay of Bengal during June 9 to 11.” Also Read – Heavy rain hits traffic, flightsIt has been further stated that a low pressure area is very likely to develop over North Bay of Bengal during next 48 hours, with the cyclonic circulation over West Central and adjoining North-West Bay of Bengal.It would lead to a depression in the “subsequent 48 hours”. As a result, it will move towards the West Bengal-Bangladesh coast.There was, however, a heavy downpour in the city and its adjoining areas on Thursday afternoon and the heavy shower continued at a stretch for around 45 minutes, bringing the movement of vehicles almost to a standstill, with people searching for shelters as the rainfall was also accompanied with lightning. Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killedThere was traffic congestion in certain areas and traffic sergeants took necessary measures to ease the movement of traffic as early as possible.It may be mentioned that there was a preparatory meeting of the state Irrigation department in North Bengal on Wednesday, to ensure that people do not face any inconvenience during monsoon.The temperature has dipped with the rainfall. The maximum temperature on Thursday was 36.5 degree Celsius, while the minimum temperature was 28.1 degree Celsius.On Friday, there will be partly cloudy sky with possibility of moderate rain or thunderstorm in Kolkata and the maximum temperature will remain around 36 degree Celsius, while the minimum temperature would be 28 degree Celsius.