Exploring the characteristics of viscoelastic fluids

first_img Copyright 2010 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 This material may not be published, broadcast, rewritten or redistributed in whole or part without the express written permission of PhysOrg.com. Teran works in the Department of Mathematics at the University of California, Los Angeles. He collaborated with Lisa Fauci at Tulane University and Michael Shelley at New York University to create a computer model depicting what happens when a free swimmer moves through a viscoelastic fluid. Their results can be seen in Physical Review Letters: “Viscoelastic Fluid Response Can Increase the Speed and Efficiency of a Free Swimmer.”“Our experiment is a computer simulation that is more representative of the real medium than simpler models relying on a more standard Newtonian fluid. The simpler models work out nice mathematically, but they are not a very accurate description of the physics that are happening,” Teran explains.With the simpler models, a wave is often depicted as moving through the fluid, with no head or tail. Additionally, these simpler models only account for the viscosity of the fluids, rather than including an element of elasticity. Teran and his peers added a free swimmer with a head and a tail, and included information representing tail undulations. They also used a viscoelastic Boger fluid in their calculations to more accurately represent the actual conditions.“What we found defies conventional wisdom,” Teran says. “When you think of a viscous fluid, like mud or honey, the fact that it is hard to swim through comes to mind. It’s inherently resistant to shear, and it is more likely to stop you. If you add elasticity, it seems like it should be even harder to swim through, since a viscoelastic fluid has a memory and resists changing shape. However, we found that a free swimmer ends up going faster in a viscoelastic fluid than a just plain viscous fluid.”The answer lies in the tail motion of the swimmer. “If you accentuate the tail motion, as seen in a lot of microscopic swimmers, you see them able to move faster because they can use the elasticity in the fluid to sort of push off. It’s leverage for use in biology.”Teran believes that the work he had done with Fauci and Shelley has implications for a number of biological applications. “The most obvious is in reproduction and fertility,” he points out. “Understanding how sperm locomote could be helpful in figuring out how to aid in reproduction. Teran also insists that understanding how these fluids work could have other uses in some engineering and biological functions. “There are a wide range of applications for fluids, and understanding their dynamics could be useful.”Next, Teran, Fauci and Shelley hope to improve their model. “So far, we have only done this in a two dimension model,” Teran says. “We also used a Boger fluid, which is a kind of crude viscoelastic fluid. It’s simplistic and easier to tune to a given physical setting. But now that we know our model works, we want to ramp it up, improving the computer code. Three dimensional modeling is one natural extension, as is using a more complex fluid to even more accurately represent real world conditions.”Hopefully, a better model will provide scientists and mathematicians with a better understanding of fluid dynamics. “Fundamentally, this could be a real help to science,” Teran says, “and there are applications that could come out of this better understanding.” Citation: Exploring the characteristics of viscoelastic fluids (2010, February 4) retrieved 18 August 2019 from https://phys.org/news/2010-02-exploring-characteristics-viscoelastic-fluids.html Explore further More information: Joseph Teran, Lisa Fauci, Mischael Shelley, “Viscoelastic Fluid Response Can Increase the Speed and Efficiency of a Free Swimmer,” Physical Review Letters (2010). Available online: link.aps.org/doi/10.1103/PhysRevLett.104.038101center_img How to Rip a Fluid (PhysOrg.com) — There are many microorganisms out there, navigating through complex biological fluids. “One of the most common migrations takes place with spermatozoa as it navigates the female reproductive tract,” Joseph Teran tells PhysOrg.com. “But there are other organisms that move through difficult environments as well, and we want to gain a better understanding of how these organisms move through viscoelastic fluids, like those found in biology.” 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

Vehicle shock absorber recovers energy from bumps in the road

first_img(PhysOrg.com) — In the past decade, regenerative braking systems have become increasingly popular, recovering energy that would otherwise be lost through braking. However, another energy recovery mechanism that is still in the research stages is regenerative suspension systems. This technology has the ability to continuously recover a vehicle’s vibrational energy dissipation that occurs due to road irregularities, vehicle acceleration, and braking, and use the energy to reduce fuel consumption. Citation: Vehicle shock absorber recovers energy from bumps in the road (2010, March 17) retrieved 18 August 2019 from https://phys.org/news/2010-03-vehicle-absorber-recovers-energy-road.html Copyright 2010 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. More power from bumps in the road: Energy-harvesting shock absorbers Explore further In the regenerative shock absorber, a smaller magnetic tube slides inside a larger, hollow coil tube, producing a magnetic flux. The researchers estimate that, for typical driving conditions, the system can improve fuel efficiency by 2-10%. Image credit: Zuo, et al.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. When placed in the vehicle suspension, vibrations in the suspension cause the coil tube to move relative to the magnetic tube. As the copper coils move inside this magnetic field, a voltage is generated. The electricity can then be used to recharge the vehicle’s battery.By recovering the vehicle’s vibrational energy and using it to drive the vehicle, the researchers hope that regenerative suspension system technology will be able to increase fuel efficiency and cut down on pollution. They note that, in the US, automobiles are a major source of several pollutants in the atmosphere, including 70% of the carbon monoxide, 45% of the nitrogen oxide, and 34% of the hydrocarbons. Further, fuel efficiency has lots of room for improvement: currently, only 10-16% of a vehicle’s fuel energy is used to drive the vehicle, i.e. to overcome the resistance from road friction and air drag. The rest is lost due to braking, vibrational energy dissipation, and other forms of loss.“Regenerative braking harvests large amount of power in a very short time, in an intermittent manner,” Zuo said. “However, the regenerative shock absorbers can harvest the power in a continuous way. On the smooth highway road, the regenerative shock absorbers can improve the fuel efficiency by 2%, and on bumpy roads up to 10% increase can be expected.”In the future, the researchers plan to increase the energy density and efficiency of the system by further increasing the magnetic field intensity and improving the harvesting electrical circuit. The New York State Energy Research and Development Authority (NYSERDA) will provide funding to support Zuo on this research and development work.“We believe there is still room for improvement in the overall design of the regenerative system, and we are working on such improvement under funding support from NYSERDA,” Zuo said. More information: Lei Zuo, Brian Scully, Jurgen Shestani, and Yu Zhou. “Design and characterization of an electromagnetic energy harvester for vehicles suspensions.” Smart Mater. Struct. 19 (2010) 045003 (10pp). Doi:10.1088/0964-1726/19/4/045003 In a recent study, Professor Lei Zuo, Brian Scully, Jurgen Shestani, and Yu Zhou, all mechanical engineers from the State University of New York at Stony Brook, have designed and tested a retrofit regenerative shock absorber that recovers a vehicle’s vibrational energy. The researchers built a 1:2 scale prototype of the regenerative shock absorber, and demonstrated its ability to harvest 2-8 watts of power during typical driving conditions at a speed of about 45 mph. They predict that a full-scale system on a four-wheel car should be able to recover up to 256 watts under these driving conditions.“For typical driving conditions, we are predicting the ability to harvest approximately 64 watts per wheel, for a total of approximately 256 watts,” Zuo told PhysOrg.com. “This value increases considerably when the system is used on irregular roads.”The purpose of the shock absorber in a vehicle’s suspension system is to reduce the vehicle’s vibration by dissipating the vibrational energy. About 10 years ago, researchers began looking into recovering the vibrational energy using various magnetic devices. In general, these systems work by first absorbing the kinetic energy of suspension vibration between the wheel and a sprung mass, and then converting that energy into useful electric power. Zuo and his team’s shock absorber consists of two tube-like components: a smaller magnetic tube slides inside a larger, hollow coil tube. The coil component is made of copper coils wound around a plastic delrin tube, while the magnetic component is made of ring-shaped magnets separated by ring-shaped magnetically permeable spacers. The magnets are aligned with like-poles facing each other to produce a radially emitted magnetic flux. The magnetic tube is also surrounded by a high magnetically permeable material in order to further “pull” the magnetic flux outward. As Zuo explained, having a high magnetic flux is key to the design. “The power we regenerate is proportional to the square of the magnetic flux across the coils,” he said. “Therefore, if we increase the flux by two times, the peak power output will increase by four times.”last_img read more

Direct imaging of active orbitals in quantum materials

first_imgIn their experiment, Tjeng ad his colleagues used synchrotron radiation as an ‘undulator’ beamline, to deliver monochromatic x-rays with high intensities. They directed the x-ray beam at a sample, specifically a single crystal; then they detected and analyzed the scattered x-rays.”By looking at the intensity of a particular atomic process (in our case ‘the 3s-to-3d excitation’) as a function of the orientation of the sample with respect to the transferred photon-momentum and by displaying these intensities on a polar plot, we obtained a direct image of the 3d orbital.,” Tjeng said.In their study, Tjeng and his colleagues were able to demonstrate the effectiveness, both in terms of power and accuracy, of the imaging technique proposed by them. They successfully applied their method on a textbook example, the x2y2/3z2-r2 orbital of the Ni2+ ion in a NiO single crystal. “By being able to directly image the orbitals that are active in a material, we will have a better and more precise insight in the behavior of the electrons that are responsible for the properties of the material,” Tjeng said. This is especially important for the design of new materials with new or optimized properties, which is highly desired by both the physics and chemistry research communities.” Tjeng and his colleagues have presented a tangible and efficient alternative to current methods for studying orbitals in quantum materials, which could ultimately enhance research in both physics and chemistry. In their future work, they plan to use their technique to study other complex materials. In addition, they would like to improve the apparatus and instruments employed by their method, so that it can become a standard source of measurement, such as single crystal x-ray or neutron diffraction measurement. © 2019 Science X Network A first for quantum physics: Electron orbitals manipulated in diamonds Citation: Direct imaging of active orbitals in quantum materials (2019, April 17) retrieved 18 August 2019 from https://phys.org/news/2019-04-imaging-orbitals-quantum-materials.html “Initially, all of this was theory,” Tjeng said. “We then set out to do the experiment, investing and upgrading an existing instrument at the PETRA-III synchrotron facility, in order to have sufficient signal, considering that this is a very photon hungry experiment. After some efforts, we were indeed able to observe the signal and the results that we had envisioned.” 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. In a recent study published in Nature Physics, a team of researchers at Max Planck Institute Dresden, Heidelberg University, University of Cologne, and DESY- Hamburg attempted to image a material’s active orbitals directly in real space, without any modeling. The imaging technique they devised is based on s-core level and non-resonant inelastic X-ray scattering.”We are interested in how materials attain their properties,” Hao Tjeng, one of the researchers who carried out the study, told Phys.org. “We want to know how these can be explained on the basis of the behavior of the electrons in the materials. We are mostly interested in transition metal (3d, 4d, 5d) and rare-earth-based (4f) materials, since they offer a wealth of fascinating and tunable properties, important for fundamental science and for numerous other applications.”When they first started working on their study, Tjeng and his colleagues knew that the quantum mechanical equations that they would need to solve were unsolvable, as the relevant calculations would take an infinite amount of time. They thus realized that it would be far more practical and useful to image the orbitals in practical experiments. “Usually, in order to determine what type of quantum mechanical states are realized in a material, one carries out spectroscopic measurements,” Tjeng explained. “These have their merits, but also their limitations: one still need to do calculations to extract the information, and quite often the results are not accurate or reliable. We were thus looking for a new method that can provide a direct image of the quantum mechanical state straight for the experiment. Maurits Haverkort and I realized that inelastic x-ray scattering could provide such an opportunity.”Using X-rays and large momentum transfers, the researchers were able to observe atomic transitions in the sample that would otherwise be forbidden in standard experiments, such as x-ray or optical absorption spectroscopy. Haverkort and Tjeng realized that by making a transition from a spherical atomic state (e.g. 3s) they could attain the shape of a 3d orbital with respect to the photon momentum transfer. Credit: Yavas et al. Journal information: Nature Physics In quantum materials based on transition metals, rare-earth and actinide elements, electronic states are characterized by electrons in orbitals d and f, combined with the solid’s strong band formation. Until now, to estimate the specific orbitals that contribute to the ground state of these materials and determine their physical properties, researchers have primarily relied on theoretical calculations and spectroscopy methods. More information: Hasan Yavaş et al. Direct imaging of orbitals in quantum materials, Nature Physics (2019). DOI: 10.1038/s41567-019-0471-2 Credit: Yavas et al. Explore furtherlast_img read more

A closer look a magnesium shows very small samples are much more

first_img More information: Bo-Yu Liu et al. Large plasticity in magnesium mediated by pyramidal dislocations, Science (2019). DOI: 10.1126/science.aaw2843 Citation: A closer look a magnesium shows very small samples are much more ductile than thought (2019, July 9) retrieved 18 August 2019 from https://phys.org/news/2019-07-closer-magnesium-small-samples-ductile.html This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. Explore further Making lighter vehicles with magnesium alloys Journal information: Sciencecenter_img A team of researchers affiliated with several institutions in China and the U.S. has found that very small samples of magnesium are much more ductile than thought. In their paper published in the journal Science, the group describes their study of the metal using an electron microscope and what they found. Gwénaëlle Proust, with the University of Sydney, has published a Perspective piece on the work done by the team in the same journal issue. © 2019 Science X Network As engineers around the world look for ways to make more efficient cars, planes and other vehicles, they are studying new, lighter materials. One such material, magnesium, is interesting because it is just as strong as aluminum, but 35 percent lighter. Up until now, the metal has rarely been used because it is too difficult to process into parts. It is also much less resistant to corrosion. Still, interest in the metal persists—many in the field believe it is only a matter of finding the right elements to mix with it. In this new effort, the researchers report that they have found very small samples of magnesium are more ductile than previously thought.The reason that magnesium is less amenable to conformity than other bendable metals is because of the way its atoms arrange themselves. Atoms such as aluminum are arranged in a cubic structure, which makes it relatively easy to make desired deformities. Magnesium atoms, in sharp contrast, are arranged in a hexagonal pattern. Prior research has shown that when a metal such as aluminum is deformed at room temperature, atoms are displaced along a line in the crystal allowing for dislocations in multiple ways. With magnesium, the possibilities are more limited. To better understand those limitations, the researchers used electron microscopy mechanical testing techniques on a micron-sized sample of magnesium. The technique allowed them to see exactly what happened while applying sheer forces at the atomic level and at room temperature.The researchers report that the crystal showed surprising ductility—they were able to force dislocations along two planes, something not seen in larger samples. They plan to keep working with the metal to see if they can find a way to force similar dislocations in larger samples—possibly paving their way for use in real-world applications. In situ TEM compression test showing that dislocation slip is responsible for the plastic deformation of an Mg single-crystal pillar under c-axis compression. (A) Hexagonal unit cell showing the loading orientation. (B) Stress-strain curve. (C) Snapshots showing an increase in dislocation density during compression. The dark-field TEM observation is conducted under a two-beam condition. Credit: Science (2019). DOI: 10.1126/science.aaw2843last_img read more

Metro celebrates

first_imgSet up at the Patel Chowk Metro station, the touch screen information system comprises of a touch screen kiosk along with a 65-inch high definition monitor, where visitors will be able to watch informational films on various aspects related to the Metro.‘The idea behind this museum is to exhibit our work. We wanted to give out information and share new developments,’ said Anuj Dayal, DMRC executive director for corporate communications.He said that the idea for this museum surfaced six years back. Also Read – ‘Playing Jojo was emotionally exhausting’‘I had visited London, and after seeing the London Transport museum I thought we too should have one such museum dedicated to the Delhi metro,’ he explained.The museum which was opened to the public on 1 January 2009, has various display panels, photographs and exhibits that trace the genesis of the Delhi Metro.As part of the celebrations, three new souvenir items – room thermometer, stationary kit and an umbrella were added for sale at the museum’s souvenir counter. An inter-school quiz competition was also organised in which students from Kendriya Vidyalaya, Chhawla, DMRC’s children home at Tis Hazari and East Point School, Vasundhara Enclave participated.last_img read more

Integration of work in the journey of the life

first_imgComprising of forty paintings that showcase the artist’s voyage across forty years, the exhibition 40 Years, 40 Works by Niren Sen Gupta explores his spiritual journey, the aesthetic nuances he distilled over the years. The abstract figures and the colours radiating energies off the canvas talk of the artist’s spiritual journey integrated into his work. He finds ready inspiration in the wisdom of the Ramakrishna Mission, in the monks he portrays in saffron robes, symbolizing the spirit of sacrifice. He uses symbolism in elements like the lotus; the auspicious banana tree and the usage of bright colours which help enforce the underlined message that there is hope for all mankind in a sublime and subtle manner. Also Read – ‘Playing Jojo was emotionally exhausting’Born in Bengal in 1940, Gupta imbibed the love, affection and the artistic bend of mind from his mother. Her lasting imprints can be seen in the way he portrays women in his works. He has participated in various group shows in India and abroad. He has been celebrated nationally through coveted awards like AIFACS Award, Maha Kaushal Award and Bangladesh National award. A senior artist-cum-art-educator Sengupta retired as the principal of College of Art, Delhi. He created his own brand, focusing mostly on Buddhist legends. The Prince or The Princess became the symbols of his work. Imbued with a sculptural style, which may even be termed as ‘Cubism’ (a geometrical approach to both figures and objects) Sengupta chissels his faces to show their various aspects and features. Even the rest of the picture space is filled with geometrically oriented objects (clothes and limbs too get the scene treatment). Colours, generally in a contrasting mode, are used as separating hues that define the form, finally. Things spiritual are the realm in which the artist delves with ease. However, he is prolific in his output and has experimented with various colour orientations. Of late, he has been touching upon themes that do not depend on the historic persona for their impact. Work like The Spiritual Journey features only a religious figure while retaining an spiritual environment.last_img read more

Soon fouryear integrated BEd course likely

first_imgKolkata: West Bengal University of Teachers’ Training Education Planning and Administration (WBUTTEP&A) is planning to introduce a 4 year integrated course on BA and BEd and BSc and BEd from the academic year 2018, that begins from July.The university, popularly known as BEd University, is working on a war footing to finalise the syllabus and other necessary parameters for commencement of the integrated course.It may be mentioned that till date, students have to pursue three year degree or pass courses in BA and BSc and then do a two year BEd course for taking up teaching in schools. Also Read – Heavy rain hits traffic, flightsThe integrated course will be of 4 years duration and will save a year for the students. Moreover, once a student seeks admission in an institution for BA or BSc now, he/she can do BEd from the same place.It is often found that students find it difficult to get admitted to BEd colleges after completing their degree course, due to the paucity of the number of seats in government and government-aided BEd colleges.”We feel this course will surely give a new dimension to those who want to take up teaching as a career option,” Soma Bandyopadhyay, vice-chancellor of WBUTTEP&A said. Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killedThe university will introduce the integrated course in phases in the different BEd colleges. “More than 10 colleges have written to us, stating that they have the infrastructure in place for starting this course,” a senior university official said.It has been learnt that WBUTTEP&A presently has as many as 413 colleges, including private BEd colleges under its aegis. The university that had started functioning on January 2015 with the initiative of the Mamata Banerjee government, has ushered in a uniform curriculum at all the BEd institutions and has contributed in reducing the fake or unaffiliated BEd colleges in the state.”BEd colleges in five districts – East and West Burdwan, Purulia, Bankura, and Birbhum are yet to come under WBUTTEP&A umbrella and we are working towards this,” the official said.last_img read more

CPM vote bank plummets to near nonexistence in Paschim Burdwan

first_imgKolkata: At a time when CPI-M is holding its Party Conference in Hyderabad to determine the future course of action, the party’s erosion of vote bank has hit rock bottom in Paschim Burdwan – once a stronghold of the party.Burdwan, then an undivided district, was a stronghold of CPI-M for decades. The Burdwan lobby used to control the party in Kolkata. There were great leaders from Burdwan, which included Benoy Chowdhury, Hare Krishna Konar, Rabin Sen, Mansoor Habibullah and Meheboob Zahedi. Also Read – Heavy rain hits traffic, flightsNow, the top leaders of the party from Burdwan are Madan Ghosh, Nirupam Sen, Mrinal Banerjee, Jiban Roy and Bansagopal Chowdhury among others. After bifurcation of the district, agrarian Burdwan falls under Purba Burdwan, while industrial Burdwan, which includes Asansol, Durgapur, Ranigunj and Andal, are parts of Paschim Burdwan.In Gram Panchayat, there are 833 seats. For these, CPI-M has fielded 337 candidates, with Congress fielding 26 candidates. CPI, which is a Left Front constituent, has fielded 20 candidates. Trinamool Congress has nominated 971 candidates, while BJP has nominated 253 candidates. Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killedIn Panchayat Samity, there are 161 seats. CPI-M and Congress have nominated 77 and 8 candidates respectively. BJP has fielded 56 candidates, while Trinamool Congress has fielded 196 candidates.In Zilla Parishad, there are 17 seats. CPI-M and Congress have fielded 15 and 6 candidates respectively. BJP and Trinamool Congress have nominated 19 and 17 candidates respectively.Political experts feel that the indifference of party leaders has failed to stop erosion of the mass base in Burdwan district. Congress has virtually become non-existent, with the party fielding 26 candidates in the 833 member Gram Panchayat, 8 candidates in the 161 member Panchayat Samity and only 6 candidates in the 17 member Zilla Parishad.CPI-M could not fill up even half of the Gram Panchayat and Panchayat Samity seats.There is a mass exodus from CPI-M to BJP. In industrial Burdwan, BJP has consolidated its base over the years. Though Trinamool had lost both the Durgapur seats in the 2016 Assembly election, CPI-M had failed to use the situation in its favour and now, BJP has developed its contacts in the grassroot level.last_img read more

Man arrested with explosives

first_imgHours before visit of US President Barack Obama, the Ghaziabad police have arrested a person carrying explosives at the Delhi-Ghaziabad border on Sunday. Police said that a huge quantity of explosives were recovered from his car. The explosives were illegal and he was trying to escape with them before he was apprehended. The police, however, have claimed to investigate the matter but have denied any link with the US President’s visit.The police were informed about the presence of few suspected elements along the border region. Suspecting foul-play ahead of the high-profile visit, security along border areas had been enhanced. Also Read – Company director arrested for swindling Rs 345 croreAt around 11:30 pm at Sangam Vihar under the jurisdiction of Loni police station, a Maruti 800 car was spotted in the area. When the police intercepted the vehicle, Jahiruddin, the occupant of the car, attempted to escape but was forced to stop. During the search of the vehicle, as many as 78 packets of explosives were found following which arrests were made.The police claimed that during the interrogation, Jahiruddin said that he was transporting the explosives to Farrukh Nagar, an area known for factories of local crackers. The cops, however, failed to explain why such a large quantity of explosives were being carried to the border area ahead of the US President’s visit. “We have arrested the suspected person and are investigating the matter. Although there is no connection with the visit of the US President, we are investigating the matter with utmost urgency,” said an official investigating the matter.last_img read more

Man held with pistol in Metro

first_imgA 25-year-old man was arrested for allegedly carrying a country-made pistol in the Delhi Metro here, an official said on Sunday. According to officials, the incident occurred on Saturday around 9:15 pm at the Peeragarhi Metro station when security officials of Central Industrial Security Force (CISF) detected a pistol in the baggage of a passenger. “The 25-year-old passenger, identified as Delhi resident Munna Pandey, was handed over to Delhi police. Pandey could not give a satisfactory reply as to why was the fire arm present in his baggage. Carrying of arms and ammunition in the Delhi Metro is prohibited and prosecutable under law,” a senior officer said.The Delhi Police later arrested Pandey and seized the weapon, the officer said.last_img

Interaction with nature good for elderly

first_imgReinforcing the beneficial influence of nature on humans, a study highlights the importance of everyday contact with nature for well being in later life.Natural environment is known to promote physical, mental and spiritual healing and green and blue spaces promoted feelings of renewal, restoration and spiritual connectedness.“We zoomed into everyday life for seniors between the ages of 65 and 86. We discovered how a relatively mundane experience, such as hearing the sound of water or a bee buzzing among flowers, can have a tremendous impact on overall health,” said lead author Jessica Finlay, a former research assistant on the project from the University of Minnesota. Also Read – ‘Playing Jojo was emotionally exhausting’Published in the journal Health and Place, the study showed that by incorporating smaller features, like a koi pond or a bench with a view of flowers, public health and urban development strategies can optimise nature as a health resource for older adults. Many people overcome barriers like chronic illness, disability and progressing old age by connecting with green and blue spaces.While younger generations may use green and blue spaces more to unwind, the participants used nature to be active physically, spiritually and socially in later life. Also Read – Leslie doing new comedy special with Netflix“Accessibility to everyday green and blue spaces encourages seniors to simply get out the door. This in turn motivates them to be active physically, spiritually and socially, which can offset chronic illness, disability and isolation,” Finlay said.Natural environments enable older adults to uphold daily structure in retirement and provide opportunities for diverse activities outside the home. This is important to quality of later life by decreasing boredom, isolation and loneliness, as well as boosting one’s sense of purpose and accomplishment.“This research is more than anecdotal; it gives credence to some small but significant elements of everyday later life. Hopefully it will help urban planners and developers build communities that span a lifetime.”last_img read more

59 IEDs recovered from Latehar jungles

first_imgBased on leads provided by a Maoist, security forces on Friday recovered 59 improvised explosive devices concealed in the jungles in Naxal-affected Latehar district, police said.The recovery was made after a Maoist Mithilesh Yadav, who was arrested from Gumla district recently, provided the police the leads, Superintendent of Police (Operation) Manish Bharti said.Bharti told newsmen that the security personnel, including 214 battalion of CRPF, Kobra, district armed Police, launched a massive search in the Kumandih jungle of Mudhar and Ranidah. Also Read – Rain batters Kolkata, cripples normal lifeIn the course of the search operation, the security personnel stumbled upon 59 IEDs concealed in the jungles of Kumandih under Manika police station limits.The bomb disposal squad of Jharkhand Jaguar battalion defused the bombs on the spot, he said. Meanwhile, security personnel on Friday arrested a Maoist with arms and ammunition from Derawan village under Chandwa police station during the anti-Naxal operation. Superintendent of Police Anup Birtheray said Puran was an active member of Rabindra Ganju-led squad.last_img read more

Of exclusive chefs and connoisseurs

first_imgHow does one gets to taste the dishes made by the Head of State’s chef? The only way is to be invited by the President of that particular country or be related to the Chef. But since the rise of Club des Chefs des Chefs in 1977, this has become easy as the club, comprising of Head of State’s Chefs from over 25 countries, come together every year for philanthropic causes.This year, the group of top chefs will head to the national Capital for six days beginning from October 23 and will promote culinary diplomacy. The delegates will also travel to Agra and Jaipur as a part of their trip. Also Read – ‘Playing Jojo was emotionally exhausting’The October 25 charity dinner will be prepared by a team of five CCC chefs for around 200 guests.  The charity dinner this year on October 25 will have 200 seats reserved at the Imperial hotel. “The money thus raised will be donated for social uplift; the beneficiary for this year will be decided in the days to come. Last time, it was for the children of Haiti,” said Gilles Bragard, the executive secretary of Paris-based non-profit organisation he founded in 1977. A demonstration of Indian cooking and sari-draping, a high tea with the President at Rashtrapati Bhavan will be held and a charity dinner which will channel the money thus raised for a philanthropic cause will be the highlights of the October 23-28 event. The Imperial will be the family hotel of the assembly. Also Read – Leslie doing new comedy special with Netflix“CCC is an exclusive club where each nation is represented by just one member—the principal chef of the head of state. It has two women,” said Bragard. “The annual general assembly is thus a sort of G20 on gastronomy,” he added. The Club des Chefs des Chefs (CCC)—the exclusive gastronomic society with a four-decade history and the elite confederation comprises of two dozen members from countries where they work as the principal chef for their constitutional head. Venu Rajamony, press secretary to the President of India, said that the country has a rich variety of cuisines that could please and surprise the people of the world.Montu Saini, Executive Chef to the President of India, said he found it a matter of pride for the country to host the “culinary ambassadors across the globe”.last_img read more

Tips to avoid deception while buying gold

first_imgWhen you step out to buy gold jewellery, be wary of getting duped. Check for purity and hallmark besides buy-back policy, says an expert.Here are a few tips form an expert that can help consumers avoid getting tricked:Gold purity: When it comes to purity, most gold jewellery has markings inside that indicate its Caratage. Pure gold is too soft to use for jewellery. The most common ‘Carat’ options are 18K, 22K or 24K.Hallmarkings: The hallmark is usually found on the inside part of each piece, and will indicate the gold content. Every piece of gold should have a Bureau of Indian Standards (BIS) hallmark. The value of your jewellery is determined by the certification it carries.   Also Read – Add new books to your shelfWeight: Gold jewellery is usually weighed in grams. The higher the gram weight, the more expensive the piece. Buy-back policies: Ask the jeweller or salesperson about return policies as to what amount of labour wastage percentage they deduct when you come back to return the piece and if there are some other ways to reinvent the old piece of jewellery and by not selling it off.Certificate of authenticity: If you are buying gold studded with diamonds, having a certificate of authenticity ensures that you are purchasing a quality piece of jewellery. It should also indicate the briefing about the piece you purchase, so every detail regarding the product is given on the authenticity card.Bills: Retaining a record of purchase is important while buying and selling gold jewellery. The invoice doubles as a record of gold purity.last_img read more

Fire audit of unaffected blocks to be conducted at Bagri Market Hakim

first_imgKolkata: In his first visit to the Fire Directorate on Mirza Ghalib Street after taking over as the state Fire minister, Firhad Hakim made it clear that fire audit will be conducted for all the blocks at Bagri Market, which have not been damaged by the fire that broke outin September. “We will carry out fire audit of five blocks at the market which remained unaffected in the major fire. Fire licences will be issued to the traders only after we get a nod from the audit team,” Hakim said. Also Read – Rain batters Kolkata, cripples normal life “IIT Roorkee which inspected Bagri Market right after the incident of fire has already given its clearance to the five unaffected blocks. It is yet to give clearance to the one block that was severely affected. The senior engineers of KMC and Fire department will visit IIT Roorkee and discuss the issue with the latter following which we will decide on its fate,” the minister said. The minister claimed 100 percent debris of the damaged market place has Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killedbeen cleared. He also announced that the Fire department will develop a fire station at Burrabazar area and develop the infrastructure so that water from River Ganga can be brought through a pipeline to ensure uninterrupted availability of water during a fire breakout. This issue will be taken up with the Kolkata Port Trust (KoPT). Talking about modernization plans, the minister said a proposal will be soon forwarded for the recruitment of women fire fighters. “We are procuring as many as 100 motorbikes with fire fighting infrastructure so that fires on narrow lanes and bylanes can be addressed efficiently,” Hakim added. Immediately after taking charge of the Fire department, Hakim had maintained that fire audit will be compulsory for the high-rises, shopping malls, market complexes and business establishments of similar nature once in a year. Malls and market places might also lose their right to do business if they don’t conduct the audit every year. Fire drills have also been made mandatory every three months. He also announced that all the fire stations will be connected through GPS system so that if there is any distress call at 101 the nearest fire station can respond at the earliest. The Fire department is also thinking of developing logistic park adjacent to the markets so that people can collect goods from there. This will reduce the burden of combustible substances in the market.last_img read more

10 minutes of exercise will boost kids heart health

first_imgEncouraging your children to engage in as little as 10 minutes a day in high-intensity physical activity could help them reduce their risk of developing heart problems and metabolic diseases such as diabetes, researchers say.The findings showed that replacing light-intensity physical activity with brief periods of vigorous exercise may provide significant cardiometabolic benefits in young people with relatively large waist measurements and elevated levels of insulin in their blood. Also Read – Add new books to your shelf”The results suggest that substituting modest amounts of vigorous physical activity for longer duration light exercise may have cardiometabolic benefits above and beyond those conveyed by moderate activity and the avoidance of sedentary behaviour,” said lead author Justin B. Moore, Associate Professor at Wake Forest Baptist Medical Center in North Carolina, US. For the study, published in the journal Medicine and Science in Sports and Exercise, researchers analysed data from 11,588 young people aged four to 18 who were included in 11 International Children’s Accelerometry Database studies in the US, Brazil and European countries. Also Read – Over 2 hours screen time daily will make your kids impulsiveThe researchers focused on those records that included the child’s age, gender, level of physical activity and at least one biomarker – a measurable indicator of a medical state or condition – of a cardiometabolic risk. These included weight circumference, systolic and diastolic blood pressure and bloodstream levels of HDL (“good”) cholesterol, LDL (“bad”) cholesterol, triglycerides, glucose and insulin. “A relatively brief but intense dose of physical activity – perhaps as little as 10 minutes a day, which is certainly feasible for most youth – could turn out to be part of a ‘prescription’ for children to achieve or maintain cardiac and metabolic health,” Moore added.last_img read more

Nona and Item bag META best play awards

first_imgThe theatre fraternity came together in the national Capital for a red-carpet awards gala at the 13th Mahindra Excellence in Theatre Awards (META) festival. Promoted by the Mahindra Group as part of its cultural outreach programmes, and curated by Teamwork Arts, the week-long extravaganza came to an end as the best of the year from Indian theatre were awarded the coveted META at the gala awards night at Kamani Auditorium on Thursday.For the first time in META history, two plays, Nona and Item, bagged the award for Best Play. Leading the awards tally, Nona bagged a total of four awards including Best Director (Jino Joseph), Best Stage Design (Jino Joseph) and Best Light Design (Sajas Rahman and Abid PT). This is the second victory for Jino Joseph at META who won the 2015 META for Best Director, Best Production and Best Original Script with Matthi. Also Read – Add new books to your shelfA first-time entrant at META, Kshitish Date (Natak Company) won the Best Play for Item along with co-artiste, Sainath Ganuwad who won the META for Best Actor in a Lead Role (Male) for his brilliant portrayal of L. Rakesh, the on-stage narrator of the play. The Umbilical Theatre (Hojang Taret), also a first-time entrant to META walked away with three awards. The Best Actor in a Supporting Role (Female) was also presented to Srishti Shrivastava from Shikhandi: The Story of the In-Betweens. Also Read – Over 2 hours screen time daily will make your kids impulsiveEminent theatre veteran, Vijaya Mehta was conferred with the META Lifetime Achievement Award for her contribution to Indian theatre. In a message to META and to theatre artists as well as audiences, she said, “I love and admire the generation shaping the art world and theatre today. I find them smart, wise and aware – perhaps in a different way from my own generation of the 1950s of the pre and post-Independence period. It is nice to know that young people are recognising and are aware of my work.”last_img read more

A Performer like no Other – How Andy Kaufman turned Network TV

first_imgFor legendary comedian Andy Kaufman, life was a performance. A simple skit or funny character wasn’t enough for the envelope-pushing performer, who was best known for playing surreal out-of-towner Latka Gravas in the sitcom Taxi. His humor was showcased on comedy institution Saturday Night Live, where audiences got a flavor of his disruptive style. Kaufman didn’t just shatter conventions — he ground them up and made them into jewelry.The cast of the TV series Taxi (clockwise from top: Tony Danza, Randall Carver, Andy Kaufman, Danny DeVito, Judd Hirsch, Jeff Conaway and Marilu Henner) pose for a portrait in 1979 in Los Angeles, California. Photo by Harry Langdon/Getty ImagesA 2016 Mental Floss article described the kind of situation people found themselves in if they watched Kaufman doing his thing on stage. “Many crowds had streamed into comedy clubs only to endure Kaufman napping in a sleeping bag,” it wrote.Or, even more bafflingly, “reading earnestly from The Great Gatsby, threatening to start all over again if they interrupted.”SNL didn’t appreciate his freewheeling approach of going off-script. However ABC’s rival show Fridays was happy to play along. A short-lived attempt to repeat the success of NBC’s star-making product, Fridays got by on the skin of its comedic teeth.SNL’s main stage during rehearsal, 2008. Photo by Rex Sorgatz CC BY 2.0Featuring future Seinfeld talent Larry David, Michael Richards and Larry Charles, the program rolled out the welcome mat for Kaufman on three occasions. On only his first appearance in 1981, he made sure it became one for the books.Like SNL, Fridays offered viewers a range of sketches and one in particular got the anarchic Kaufman treatment. A pair of couples are out at a restaurant but one by one they excuse themselves to go and get high in the bathroom.So far, so funny. And Fridays had a reputation for going places its bigger counterpart didn’t go — their sketches included the brutal Great Muppet Hunt and Groucho Marx/Iran piece A Night In Tehran.Andy Kaufman during performance at Carnegie Hall. Photo by Ted Thai/The LIFE Picture Collection/Getty ImagesHowever not long into the performance, which co-starred Richards, Kaufman began acting up. He’d excused himself to go get high but as he sat back down it became clear he wasn’t happy with how things were going.Admitting to his cast mates and the audience that he didn’t play stoned very well, the mayhem escalated when Richards went off stage before returning to drop cue cards in Kaufman’s face.There then ensued a fight between Kaufman and everyone else, such as Richards and even the crew as they anxiously tried to wrap up the sketch. Looking back on the incident for the home entertainment release in 2013, LA Weekly called it “a Rashomon event with conflicting stories as to what really happened.”Tony Clifton cartoon. Photo by Greg Williams CC BY-SA 2.5The curtain was finally pulled on the action and speculation was rife that Kaufman had suffered a meltdown.In fact he’d simply done what he was known for, engineering a publicity stunt that helped the under-appreciated Fridays go on longer than it perhaps ordinarily would have done.Over 30 years after the chaos aired, cast and crew chose the release to lift the lid on what actually took place. Entertainment Weekly mentioned co-creator John Moffitt’s revelation in 2013 that the “Kaufman incident was totally planned and some of the cast, including Richards, were in on it.”Andy Kaufman. Photo by Reckon CC BY SA 2.0Entertainment Weekly wrote, “With Andy, you simply never knew what was real and what was fake.” He wanted the audience on the edge of their seats, taking them somewhere they weren’t used to on network television.He continued to keep his fans and unsuspecting people on edge, via characters such as an evil professional wrestler. Kaufman was willing to risk his safety as well as his reputation.Arguably the best tribute came from Jim Carrey, who played Kaufman in Man On The Moon (1999). His insistence on staying in character as the unpredictable star was extensive enough to get its own documentary (Jim & Andy: The Great Beyond).Read another story from us: The Scream of Sam Kinison – Religious Preacher Turned Rock Star ComedianHis career was spectacular in places but frustratingly short-lived. Kaufman passed away from lung cancer just three years after the Fridays sketch got the nation talking. Perhaps appropriately, some think he faked his demise.last_img read more

US Soccer culture needs less arrogance and more accountability

first_imgDon’t be fooled into buying into this version of Alex SmithThe Chiefs are playing better than the any team in the NFL, and Alex Smith is playing better than he has at any point in his career. Even though it’s tempting to buy into the narrative that this version of Smith is different than the game manager, who has struggled in the playoffs throughout his career, Colin isn’t drinking the Kool-Aid.Smith looks great right now, but Colin warns that when the weather gets cold and the playoffs start, Smith will still struggle, like he always has. Statistically, in his career, all of his numbers dip, and he has a losing record when the temperature drops.This isn’t the first time Smith has come out of the gates fast, but he’ll prove that he’s still the same Alex Smith once the second season starts.Guests:Joel Klatt – FS1 College Football Analyst is in-studio to explain why people comparing Jim Harbaugh are clueless; why Sam Darnold isn’t struggling as bad as some contend; and his Almost Upset of the Week.Antonio Cromartie – NFL Cornerback is in-studio talking semi-retirement; anthem protest; Jerry Jones mandate to players; and why he thinks his protest got him cut from the Colts.Alexi Lalas – Fox Sports Soccer Analyst joins the show to discuss the massive failure of the U.S. to qualify for the World Cup; and what needs to change in the USMNT culture to avoid this happening again.Nick Swisher – FS1 MLB Analyst joins the show to talk about Strasburg’s reluctance to pitch in an elimination game; and his prediction for Yankees/Indians Game 5 tonight. U.S. Soccer culture needs less arrogance and more accountabilityThe U.S. Men’s Soccer Team failed to qualify for the World Cup after suffering an all-time embarrassing loss to Trinidad and Tobago. The loss, combined with wins by Honduras and Panama, means the U.S. will miss the World Cup for the first time since 1986, and Colin was shocked at how indifferent the players and coaches seemed after the game. He was more upset about the loss than they seemed to be.The reality is that U.S. soccer team has been overly arrogant for a long time, despite never winning anything of significance, and the players never hold themselves accountable for their failures. This is one they can’t hide from.If the U.S. wants to compete going forward, they need to adopt the international model of developing players and start sending the young talent overseas to play against the best competition, and scrap the pay-for-play model at the youth level that has produced a team full of entitled, soft suburban kids, and has bypassed talent that doesn’t have the financial means to enter the youth development system.last_img read more

VIDEO LaVar Ball reviews Lonzos rookie year and unveils the new 500

first_img‘LaVar Ball’ has been out of sight in Lithuania for the better part of the NBA season, but returned to review Lonzo’s rookie year in a return appearance to SNL’s Weekend Update.Not surprisingly LaVar thought Lonzo killed it by averaging 50 points, 100 assists and 500 touchdowns per game. He also unveiled a new addition to the Big Baller line with the ZoTeva, a $500 version of the notoriously uncomfortable 90’s sandal whose backstrap is guaranteed to rip the skin off the back of your heel every time.The wheels never stop turnin’.last_img