Month: August 2019
(Phys.org)—Technologists generally agree that power amplifiers have proven to be inefficient pieces of hardware. Turning electricity into radio signals, they eat into the battery life of smartphones and they waste power. One may find that a cellular phone cannot stream live video without running down the battery in minutes. Now a team of engineers have come up with an alternative amplifier technology that can extend smartphone battery life. Eta Devices, based in Cambridge, Massachusetts with an office in Stockholm, and cofounded by two MIT electrical engineering professors, Joel Dawson and David Perreault, offers a new amplifier design. The result is described in Technology Review as a “blazingly fast electronic gearbox.” The engineers call their approach “asymmetric multilevel outphasing (AMO).” It is able to “intelligently” select, among voltages that can be sent across the transistor, the one that minimizes power consumption. Toshiba develops the circuit technique for power efficiency improvement in CMOS power amplifier for mobile phones © 2012 Phys.org Explore further In 2009, Dawson and Perreault, along with SungWon Chung, Philip Godoy, Taylor Barton, and Everest Huang, wrote a paper to describe AMO, calling it a new outphasing transmitter architecture in which “the supply voltage for each power amplifier can switch among multiple levels.” They said the AMO modulation technique was found to increase overall efficiency over a much wider output power range than the standard LINC system while maintaining high linearity. “This architecture results in significant efficiency improvement over previous methods.”Dawson, quoted in Technology Review, said that today’s power amplifiers used in both phones and cellular base stations are inefficient, “pulling a lot of energy just to keep the thing on.” The more data needed to send, the worse it gets. “With high data rate communication, you wind up needing far more standby power than signal power. This is why the phone is warm,” he said. Smartphone battery life, however, is not first in line for Eta Devices, which has been working on their concept, reaching various “milestones” along the way of their R&D. The company will attempt to prove itself next year in applications for Long Term Evolution (LTE) base stations. They hope to reduce base station energy usage by impressive amounts. In large base stations, the power amplifier takes as much as 67 percent of the power, with another 11 percent for air-conditioning. The new amplifier would reduce overall power consumption by half, according to Eta Devices CEO, Mattias Astrom. The company will launch its product in February at Mobile World Congress in Barcelona. Next will come a chip-scale version of the technology, which is still in development, to increase the battery life of smartphones. They hope for a smartphone chip that can lead to a single-power amplifier to handle the different modes and frequencies used by global standards, including CDMA, GSM, and 4G/LTE. Eta Devices has funding from Ray Stata, cofounder of Analog Devices and Stata Venture Partners. Asymmetric multilevel outphasing (AMO) architecture. Credit: SungWon Chung et al. Citation: Ex-MIT company rethinks power-feasting amplifiers (2012, November 1) retrieved 18 August 2019 from https://phys.org/news/2012-11-ex-mit-company-rethinks-power-feasting-amplifiers.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.
The innovative radar has also been tested in different scenarios. Here the system demonstrator has been moved in a maritime scenario, controlling the naval traffic in the port of Livorno, in collaboration with the local Port Authority. Credit: Antonella Bogoni Journal information: Nature More information: A fully photonics-based coherent radar system, Nature 507, 341–345 (20 March 2014) DOI: 10.1038/nature13078AbstractThe next generation of radar (radio detection and ranging) systems needs to be based on software-defined radio to adapt to variable environments, with higher carrier frequencies for smaller antennas and broadened bandwidth for increased resolution. Today’s digital microwave components (synthesizers and analogue-to-digital converters) suffer from limited bandwidth with high noise at increasing frequencies, so that fully digital radar systems can work up to only a few gigahertz, and noisy analogue up- and downconversions are necessary for higher frequencies. In contrast, photonics provide high precision and ultrawide bandwidth, allowing both the flexible generation of extremely stable radio-frequency signals with arbitrary waveforms up to millimetre waves, and the detection of such signals and their precise direct digitization without downconversion. Until now, the photonics-based generation and detection of radio-frequency signals have been studied separately and have not been tested in a radar system. Here we present the development and the field trial results of a fully photonics-based coherent radar demonstrator carried out within the project PHODIR27. The proposed architecture exploits a single pulsed laser for generating tunable radar signals and receiving their echoes, avoiding radio-frequency up- and downconversion and guaranteeing both the software-defined approach and high resolution. Its performance exceeds state-of-the-art electronics at carrier frequencies above two gigahertz, and the detection of non-cooperating aeroplanes confirms the effectiveness and expected precision of the system. The research team while testing the photonics-based coherent radar system on the roof of the laboratory in Pisa, Italy, detecting the aerial traffic from the close airport. Credit: Antonella Bogoni The radar system the team built is still just a prototype, though it does appear feasible. The team tested its abilities by monitoring real aircraft taking off at a nearby airport and then comparing what they observed with data from traditional electronic signal based systems. They report that the systems matched very closely. That of course is just an initial test, as McKinney notes, much more research and testing will need to be done before the researchers will know if such a system could provide better results than conventional systems. Also, another area of concern is range, which could impact jitter, and thus the accuracy of the system. © 2014 Phys.org This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. A quiet phase: NIST optical tools produce ultra-low-noise microwave signals The radar system, part of a project known as PHODIR (Photonics-based fully digital radar) is an effort to improve the tracking and speed calculation abilities of current electronic signal based systems. It’s well understood that making improvements in such a system will require higher frequency signals, something that can’t be done with current systems due to an increase in noise that creates more uncertainty in the signals received. For that reason, scientists have been looking to use lasers—such signals are much more stable.Building a radar system using a laser requires an optical mode of oscillation that is able to maintain a highly stable phase relationship—that’s the hurdle the researchers had to overcome. They used a mode-locked laser, it allowed for establishing a periodic sequence of laser pulses that exhibited low timing jitter. Using it, in conjunction with a computer running software they wrote, they were able to produce an RF signal with low phase noise by adding an optical filter located past the laser, which was sent to a photo diode, allowing for two optical modes to be selected. (Phys.org) —A team of researchers in Italy has developed the first fully photonics-based coherent radar system. In their paper published in the journal Nature, the team describes how they built their new radar system and what it might mean for the future of radar systems. Jason McKinney of the US Naval Research Laboratory offers a News & Views perspective piece on the development of the radar system in the same issue and outlines issues involved with attempting to implement such a system into real world applications. Citation: Researchers develop fully photonics-based radar system (Update) (2014, March 20) retrieved 18 August 2019 from https://phys.org/news/2014-03-fully-photonics-based-laser.html Explore further
More information: Po-Chun Hsu, et al. “Personal Thermal Management by Metallic Nanowire-Coated Textile.” Nano Letters. DOI: 10.1021/nl5036572 A team of researchers led by Professor Yi Cui, along with PhD student Po-Chun Hsu and others at Stanford University, have published a paper on the AgNW-coated textiles in a recent issue of Nano Letters.As the researchers explain, most strategies to reduce indoor heating focus on improving the insulation of the buildings, such as by using high R-value insulation and low-emissivity windows. However, a large portion of the energy is still wasted on heating empty space and inanimate objects. To avoid this waste, the researchers have used a new strategy called “personal thermal management,” which focuses on heating people. They’ve demonstrated that clothing dipped in a solution of metallic nanowires, such as AgNWs, achieves this goal by both providing passive insulation and allowing for active heating when connected to an external power source.The main advantage of the AgNW-coated clothing is that it reflects over 90% of an individual’s body heat (i.e., infrared radiation) back to the individual. This reflectance is much higher than even the warmest wool sweater, as the average clothing material reflects back only about 20% of body heat. This increase in reflectance is due to differences in the materials’ emissivity, which is a measure of heat radiation. Low-emissivity materials like silver, which has an emissivity of 0.02, emit less radiation and so provide much better insulation than high-emissivity materials like common textiles, which have an emissivity of about 0.8.Of course, wearing clothing made completely of silver would be impractical and uncomfortable, not to mention expensive. A main reason for this discomfort is that silver, like all metals, is not breathable. For example, Mylar blankets, which are made of aluminum and plastic, are extremely warm but are not vapor-permeable, causing moisture to accumulate on a person’s skin. The new AgNW-coated clothing, on the other hand, is breathable due to the nanowires’ porous structure. The large spacing between nanowires of about 300 nm offers plenty of room for water vapor molecules, which are about 0.2 nm, to pass through. The 300-nm spacing is still much too small to allow body heat to pass through, since human body radiation has a wavelength of about 9 µm and so interacts with the nanowire cloth as if it were a continuous metal film, and is reflected. Explore further Clothing coated in AgNWs would feel virtually identical to normal clothing because such a small amount of AgNW solution is required to achieve high reflectivity. Dip-coating cotton cloth into the AgNW solution adds a mass of just 0.1 g/m2, which would be less than 1 gram for an entire outfit. Only a small fraction of this mass is silver, so the cost would be relatively inexpensive. Using other metals such as copper, nickel, or aluminum, which have similar properties as silver, could further reduce costs.Besides providing high levels of passive insulation, AgNW-coated clothing can also provide Joule heating if connected to an electricity source, such as a battery. The researchers demonstrated that as little as 0.9 V can safely raise clothing temperature to 38 °C, which is 1 °C higher than the human body temperature of 37 °C.Variables such as outdoor temperature, length of the winter season, and home size make it difficult to calculate exactly how much energy a person would save by wearing AgNW-coated clothing. However, the researchers have calculated a rough savings estimate of 8.5 kWh of heating energy per person per day, or 1,000 kWh per year assuming that the heating system operates for four months per year. This estimate is based on the average person requiring 367 W of heating power, compared with 12 W required by the AgNW-coating clothing when actively operating. The researchers note that a 1,000 kWh savings in power consumption is equivalent to the power generated by a 2-square-meter solar panel. Plus, fabrication, installation, and maintenance of the solar panel would likely cost much more than the AgNW-coated clothing.When testing the durability of the AgNW-coated clothing, the researchers found that the clothing could withstand multiple wash cycles while maintaining its electrical properties. Surprisingly, the electrical resistance decreased after the first two wash cycles, possibly due to the removal of extra coating on AgNWs and an increase in packing density of the nanowire mesh, and the resistance stabilized after the third wash cycle.The researchers also fabricated and tested clothing coated in a carbon nanotube solution. However, although carbon nanotubes are conductive and therefore suitable for Joule heating, their high emissivity of 0.98 does not enable them to reflect body heat nearly as well as the AgNW coating. 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. © 2015 Phys.org (a) Illustration showing that body heat passes through normal cloth but is reflected by AgNW cloth. (b, c) Photos of AgNW cloth and CNT cloth showing their flexibility. (d, e) SEM images of AgNW cloth and CNT cloth. Credit: Hsu, et al. ©2014 American Chemical Society Journal information: Nano Letters Nanowire clothing could keep people warm—without heating everything else Citation: Super-insulated clothing could eliminate need for indoor heating (2015, January 8) retrieved 18 August 2019 from https://phys.org/news/2015-01-super-insulated-indoor.html (Phys.org)—By wearing clothes that have been dip-coated in a silver nanowire (AgNW) solution that is highly radiation-insulating, a person may stay so warm in the winter that they can greatly reduce or even eliminate their need for heating their home. Considering that 47% of global energy is spent on indoor heating, and 42% of that specifically for residential heating, such highly insulating clothing could potentially have huge cost savings.
The researchers, led by Assistant Professor Da Deng at Wayne State University, have published a paper on the novel approach in a recent issue of the journal Chemistry of Materials.”A large number of eggs are consumed daily, but the disposal of eggshell waste is still a challenging task,” Deng told Phys.org. “We outline an idea of the direct use of waste eggshells (or ‘trash’) as a unique reaction system (or ‘treasure’) for the synthesis of 1D nanorod arrays on eggshell membrane protein fibers. We prepared a composite of crystalline Co9S8 nanorod arrays on carbon fibers that demonstrate promising performance in both lithium- and sodium-ion batteries.”An eggshell has two main parts: the hard shell, which is made mainly of calcium carbonate; and the thin membrane that lines the inside of the hard shell. The membrane is made of protein fibers that contain sulfur and carbon. (The foul odor of rotten eggs is due to the hydrogen sulfide that is released when these sulfide proteins decompose.) In order to recycle eggshells for existing uses, such as fertilizer and dietary supplements, the two parts must be separated using expensive separation processes. One advantage of recycling the eggshells as multifunctional reactors for making battery electrodes is that the two parts do not need to be separated, since both parts are used together.A partially intact hard shell, curved like a small vase, is first placed in a larger container and used to separate two solutions: sodium hydroxide (NaOH) on the outside, and cobalt(II) sulfate (CoSO4) on the inside. If these two solutions were to rapidly come into contact with each other, they would react to form crystalline microparticles of cobalt(II) hydroxide (Co(OH)2). The eggshell keeps the two solutions separated for the most part, but since the shell is semi-permeable, it allows some OH- ions to diffuse very slowly from the outside to the inside of the shell. After about four days, the OH- ions raise the pH of the inside solution from 4.8 to 7, making it less acidic. This provides the right conditions for Co(OH)2 to form in the amorphous form instead of the crystalline form. © 2016 Phys.org Study finds color and thickness of eggshells in wild birds related to light level exposure (a) Photo of the experimental setup using an eggshell as a reactor. (b) Illustration of the reactor system. Credit: Meng et al. ©2016 American Chemical Society Journal information: Chemistry of Materials Explore further The advantage of having Co(OH)2 in the amorphous form is that it forms a coating on pieces of the eggshell membrane inside the shell. The coated membrane is then removed from the solution and heated for about two hours, which leads to both carbonization and sulfurization. The protein fibers are carbonized, meaning they turn into carbon fibers and, in doing so, they release sulfur. The sulfur reacts with the Co(OH)2 to form cobalt sulfide (Co9S8) nanorods. Cobalt sulfide is a commonly used battery electrode material, though not usually in nanorod form.The final product—carbon fibers coated with cobalt sulfide nanorods—can easily be turned into a slurry for use as battery electrodes. The researchers found that the initial battery prototype exhibits a good performance, including maintaining a stable capacity (540 mAh/g) over 300 cycles at low current, though the capacity decreases at higher currents. This cycling rate outperforms that of lithium-ion batteries that use cobalt sulfide films as electrodes. The researchers attribute this improvement to the cobalt sulfide’s nanorod structure. They explain that the nanorods are firmly attached on the carbon fibers, and the carbon fibers enhance contact between the electrode and electrolyte to improve the flow of current.Although this method requires that the eggshells be kept mostly intact, the researchers think that this requirement could be met by eggs prepared in commercial facilities.”Food manufacturers use a large quantity of eggs,” Deng said. “They could provide the eggshells needed. Our technology requires the use of the eggshells in the form of a container, not in the form of pieces of totally smashed eggshells. If the eggs could be broken by an egg cracking machine into containers, it should be possible to preserve the form needed as ‘reactors.’ For example, a half eggshell could still function as a container, but a smaller container as compared to the one we demonstrated in our paper, where we carefully cut a small hole in the eggshell.”Looking forward, cobalt sulfide has many other applications besides as a battery electrode material, such as in supercapacitors, solar cells, and catalysis. Usually, preparing nanostructured cobalt sulfide requires high pressures, toxic and expensive materials, and complex methods. With further refinements, the eggshell method could help alleviate some of these problems. In addition, future research on this method of using eggshells as reactors could lead to the synthesis of other types of nanostructured materials for a variety of uses.”We plan to explore the direct use of the eggshell reactor system to synthesize many other functional materials, which can find applications beyond batteries,” Deng said. Citation: Scientists make battery electrodes from waste eggshells (2016, June 9) retrieved 18 August 2019 from https://phys.org/news/2016-06-scientists-battery-electrodes-eggshells.html More information: Xinghua Meng and Da Deng. “Trash to Treasure: Waste Eggshells Used as Reactor and Template for Synthesis of Co9S8 Nanorod Arrays on Carbon Fibers for Energy Storage.” Chemistry of Materials. DOI: 10.1021/acs.chemmater.6b01142 (Phys.org)—Americans consume 76 billion eggs per year, and while some of the eggshell waste is used for fertilizer or dietary supplements, the majority of these eggshells are thrown away. In a new study, researchers at Wayne State University in Detroit have developed a method to recycle eggshells, using them as “chemical reactors” to synthesize sulfur-containing nanorods that can be used as battery electrodes. 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.
All the dance enthuisiasts can head over to experience some great ballet performances as Shriram Bharatiya Kala Kendra is up with their 11th Festival of Ballets that kick started on 9 May. The first day of the festival featured the dance performance Meera. The performance brought up the glory lies in her ability to articulate through her poetry the turbulence that transpired in her life. Meera’s life seems to be an allegory for most women, that centuries later, her name lives on. Wherever she went, through the effervescence of her poetry, she spread the message of liberation and urged an inner awakening. The performance was choreographed by Shashidharan Nair and the music was given by Shubha Mudgal under the production and direction by Shobha Deepak Singh. Also Read – ‘Playing Jojo was emotionally exhausting’The second day of the festival (10 May) will feature the performance Shree Durga. The performance is choreographed by Shashidharan Nair and the vocal composition is by Shanti Sharma. The performance highlights that Durga and Kali are not vehicles of a bygone era but remain pertinent today. One reads daily about the atrocities on women. When the Gods give boons they themselves become victims of these boons and it is then that they invoke Shree Shakti; feminine power, to vanquish demons in society. Female power conquers over mindless demons of society. Also Read – Leslie doing new comedy special with NetflixOn the third day (15 May), the festival will present Karna. It is choreographed by Late Guru Krishna Chandra Naik and Shashidharan Nair. The music is given by Barun Gupta. Towards no other persona of the epic of Mahabharata do circumstances remain consistently so hostile. Karna’s life and times are frozen in their entirety and his fortunes into a perpetual predicament. This ballet is dedicated to all the Karnas natural and unnatural, who are denied the rightful place in the social milieu, seen in its correct perspective. Karna’s life has been so unfair that it immediately elicits sympathy. His life in the epic is resplendent with magnificent misadventures and acts of valour. The closing day of the festival (17 May) will be featuring Kumar Sambhava. The music is been given by Barun Gupta and the scripting is done by Neelabh. The act is directed by Shobha Deepak Singh. It is an endearing story of the demon Tarak, who enjoyed sacred protection in the form of a boon of invincibility from Lord Brahma, of which he took blatant advantage and wreaked havoc on earth. In desperation, mankind appealed to Brahma and the gods to save them from Tarak’s oppression and Lord Brahma said that Tarak could only be killed by the son of Lord Shiva and Parvati, with the intervention of Kamdeva, the god of love. Shiva and Parvati married. After a peaceful existence in the mountains, Kartikeya, their eldest son who was incubated in six wombs of celestial virgins, was born to allow the world to rejoice. Kartikeya was taught by Shiva. At the end of his training Shiva asked his son to lead the army into battle and rid the world of Tarak. After a ferocious battle, Kartikeya mustered all his powers and released a deadly bolt against Tarak, that instantly saw him crash to the ground, dead. And so, the darkness lifted from the heavens and earth and the gods and humans rejoiced. Kamdeva’s death and his wife Rati’s lamentation offer the poignant and sad reality of a tale, where good and evil coexist.Where: Kamani Auditorium, 1 Copernicus MargWhen: 10, 15, 17 May Timing: 7-8.30 pm
A photographer, a writer and an IPS officer, Somesh Goyal has enthralled the audiences across India through his rare collection of photographs. Goyal who has been into photography for the last four decades recently came up with his work Yellowstone: The Artist’s Point at AIFACS that provided a glimpse of the world’s first national park. The show exhibited the pictures taken by him at Yellowstone. Yellowstone is the world’s first national park and one of the largest in the contiguous United States. The park is located at the headwaters of the Yellowstone river, from which it takes its historical name. Home to a remarkable diversity of mammals, birds and fish, it’s one of the world’s foremost wildlife sanctuaries. Here, every season brings special wonders and each of the park’s varied landscapes offers a range of exciting experiences. The park is home to seven species of conifer trees, more than 1,000 species of native vascular plants, 67 species of mammals and more than 320 bird species!
Providing help to friends, acquaintances, and even strangers can reduce the effects of daily stress on our emotions and our mental health, says a study.“Our research shows that when we help others, we can also help ourselves,” explained study author Emily Ansell of the Yale University School of Medicine in the US. “Stressful days usually lead us to have a worse mood and poorer mental health, but our findings suggest that if we do small things for others, such as holding a door open for someone, we won’t feel as poorly on stressful days,” Ansell noted. Also Read – ‘Playing Jojo was emotionally exhausting’In the study, people used their smartphones to report on their feelings and experiences in daily life. A total of 77 adults, ranging from 18 to 44 years old, participated in the 14-day study.The participants received an automated phone reminder every night that prompted them to complete their daily assessment. They were asked to report any stressful life events they experienced that day across several domains such as interpersonal, work/education, home, finance, health/accident, and the total number of events comprised the measure of daily stress. The results indicated that helping others boosted participants’ daily well-being. Also Read – Leslie doing new comedy special with NetflixA greater number of helping behaviours was associated with higher levels of daily positive emotion and better overall mental health.“It was surprising how strong and uniform the effects were across daily experiences,” Ansell said. “For example, if a participant did engage in more prosocial behaviours on stressful days, there was essentially no impact of stress on positive emotion or daily mental health. And there was only a slight increase in negative emotion from stress if the participant engaged in more prosocial behaviours,” Ansell pointed out.The study was published in the journal Clinical Psychological Science.
Kolkata: This is a sight which one can behold only in the City of Joy. When the fire-fighters were giving their best to douse the devastating fire at Bagree Market, a group of locals came forward to support them by distributing water, food and tea.It was from almost 3 am on Sunday that the fire-fighters were battling hard to control the fire. They worked under an extremely difficult situation with heavy smoke billowing out of the windows of the building. Additional policemen were also deployed at the spot to ensure that the fire-fighters could work without facing any difficulty. Personnel of the Disaster Management Group were also there to restore normalcy at the earliest. Also Read – Rain batters Kolkata, cripples normal lifeApart from the men in uniform, another set of people were found working relentlessly, distributing food and water among those who were battling the blaze. The firefighting continued for more than 19 hours and the group of people had been working since morning. In a bid to ensure that the rescuers get food, around 500 packets containing pulao were distributed. Again, in the evening, tea was distributed and another 1,000 food packets were distributed after sundown. It may be mentioned that whenever there is any such situation, a good number of people from the city come together to carry out such works. The same thing was witnessed when the Vivekananda Flyover collapsed and the rescue work continued for three to four days. Food and water were distributed so that people working at the spot could get some food as and when required. Some locals from Ekbalpore came to the site where the Majerhat bridge caved-in on September 4 and they were found distributing cakes, biscuits and water among the rescuers.
Consuming a Mediterranean diet rich in vegetable fats such as olive oil or nuts does not lead to significant weight gain compared to a low-fat diet, finds a new research.The findings showed that fats from nuts, fish and phenolic-rich vegetable oils found in the Mediterranean diet are healthier than fats from meat and processed foods. “Our study shows that a Mediterranean diet rich in vegetable fats had little effect on bodyweight or waist circumference compared to people on a low-fat diet,” said lead author Ramon Estruch from the University of Barcelona, Spain. Also Read – ‘Playing Jojo was emotionally exhausting’A Mediterranean diet has been known to reduce mortality, heart diseases as well as cancer.However, the fear of eating an all fat diet means that a low-fat diet continues to be recommended as a means of weight loss, the researchers said. “The study certainly does not imply that unrestricted diets with high levels of unhealthy fats such as butter, processed meat, sweetened beverages, deserts or fast foods are beneficial,” Estruch added. For the study, published in ‘The Lancet Diabetes & Endocrinology’ journal, the team included 7447 participants (men and women) aged 55-80 who were randomly assigned to one of three groups – an unrestricted calorie Mediterranean diet rich in olive oil (2543), an unrestricted calorie Mediterranean diet rich in nuts (2454), or a low-fat diet where the advice was to avoid all dietary fat (2450). Also Read – Leslie doing new comedy special with NetflixAfter five years, the low-fat diet group (from 40 per cent to 37.4 per cent) showed a decrease in the total fat intake and both Mediterranean diet groups (40 per cent to 41.8 per cent in olive oil; 40.4 per cent to 42.2 per cent in nuts) showed slight increase. The percentage of energy intake from protein and carbohydrate decreased in both Mediterranean diet groups.On an average, participants in all three groups lost some weight with the greatest weight loss seen in the Mediterranean diet with olive oil group (0.88 kg weight reduction in the olive oil group, compared to 0.60 kg for the low-fat diet group and 0.40 kg for the nuts group). “Calorie-obsessed caveats and warnings about healthier, higher-fat choices such as nuts, phenolic-rich vegetable oils, yoghurt should also be dropped. We must abandon the myth that lower-fat, lower-calorie products lead to less weight gain,” commented Dariush Mozaffarian, Professor at Tufts University in the US, in a linked article.
According to the researchers, such rude behaviour is common at a politically-charged workplace and this incivility is fast spreading.Experiencing such rude behaviour reduces employees’ self-control and leads them to act in a similar uncivil manner, say Russell Johnson and colleagues from Michigan State University. “People who are recipients of incivility at work feel mentally fatigued because uncivil behaviours are somewhat ambiguous and require employees to figure out whether there was any abusive intent,” said Johnson, associate professor of management. Also Read – Add new books to your shelf“This mental fatigue, in turn, led them to act uncivil toward other workers. In other words, they paid the incivility forward,” he noted in a paper which appeared in the Journal of Applied Psychology.While curt remarks and other forms of incivility do not involve openly hostile behaviour such as bullying and threats, they are a frequent occurrence in the workplace and have a significant effect on employees.For the study, 70 employees filled out a survey relating to incivility and its effects three times a day for 10 consecutive workdays. Interestingly, the researchers found that “incivility spirals” – when acts of incivility lead to subsequent acts of incivility – can occur unintentionally. Also Read – Over 2 hours screen time daily will make your kids impulsive“When employees are mentally fatigued, it is more difficult for them to keep their negative impulses and emotions in check, which leads them to be condescending and rude to colleagues,” Johnson noted.The study also found that incivility spirals occurred in workplaces that were perceived as political (where co-workers “do what is best for them, not what is best for the organisation”).“Being the victim of incivility leaves employees depleted because they must expend energy to understand why they were targeted and how to respond,” the study stated.One way to reduce perceptions of politics, the study says, is by providing clear feedback to employees regarding the types of behaviours that are desired, the authors wrote.
Kolkata: A businessman was allegedly assaulted by some members of a local club at Byantra in Howrah.According to sources, some local club members had organised Raksha Kali Puja for which they were collecting donations in the locality. It is alleged that they had demanded huge amount of money from local shop owners also. Some had negotiated and gave them money and other gave things needed for the puja. Club members approached Safiulla Qureshi alias Munna, who own a grocery shop located on the Belilious Road in Howrah for donation. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: MamataThey reportedly demand money and a few things. According to sources, Qureshi told the club members that he was not in a position to meet their demands. Hearing this club members allegedly misbehaved with him. Later, they demanded 100 kg sugar for the puja. But, Qureshi again stated that he can’t meet the demands. This time, the club members allegedly abused him and used filthy languages. Qureshi and club members got involved in an altercation. Also Read – Lightning kills 8, injures 16 in stateAfter a while, the club members left the place threatening Qureshi. It is alleged that on Saturday night around 40 youths attacked Qureshi with iron rods, bamboo and sticks. He was beaten up badly. When Qureshi was bleeding profusely from his face and nose, miscreants allegedly took about Rs 15,000 from his pockets. Later, Rs 10,000 was taken out from the cash box of his shop. Hearing Qureshi screaming for help, other local business persons rushed to his shop. Sensing resistance, miscreants fled the scene. Qureshi was rushed to a local hospital where he was treated and later discharged. Following treatment, Qureshi lodged a complaint at the Byantra police station against the club members. No one was arrested till Sunday night.
Enter a world of technology breakthroughs, with the real story of starting up and unadulterated entrepreneurship; get an enormous amount of practical advice, tips and ideas to make a student brilliant; flick through a moving personal story and the ultimate guide to making the 50s the most fabulous decade of your life yet. Finally, let go of outdated and traditional ways of closing the skills gap, and embrace the urgency of “re-skilling” and “upskilling” the workforce as seniors in business organisations. Also Read – Add new books to your shelf Here are some books you can read on diverse issues: 1. Why I Stopped Wearing My Socks by Alok Kejriwal By the time he was 20, Alok Kejriwal had his life pre-planned for him. He would inherit the family business of manufacturing socks and be the hard-working, money minting, quintessential Marwari businessman, forever. Except that it didn’t turn out that way. A few years after surviving the family set-up, something turned up that sent Alok on a completely different career path: The Internet! Also Read – Over 2 hours screen time daily will make your kids impulsiveA crazy business idea Alok had turned out to be a winner and contests2win.com was born. Soon, Alok was fighting and thriving in a world completely different from the one he had grown up in. A world where technology breakthroughs, VCs and out-of-the-box thinking decided the real winners. ‘Why I Stopped Wearing My Socks’ is Alok’s story of starting up and unadulterated entrepreneurship. It traces his roller-coaster ride as an aspiring entrepreneur; traversing through a variety of business ideas in the family business up to his big breakthrough as one of India’s first entrepreneurs to tap the power of the internet. It details the amazing success of contests2win.com and Mobile2win, a venture eventually acquired by The Walt Disney Company. The chapters in the book are actual stories, throbbing with memorable anecdotes, that conclude with crisp learning for the readers. 2. The Art of Being a Brilliant Teacher by Gary Toward, Chris Henley and Andy Cope Teaching is an art. With the right techniques, guidance, skills and practice, teachers can masterfully face any situation the classroom could throw at them. With their fresh perspectives, sage advice and humour, Andy, Chris and Gary show teachers how to unleash their brilliance. For any teacher who has had a classroom full of angels who suddenly turn into devils for some unknown reason, or who realise too late that their best-laid lesson plans will go nowhere, or who is that teacher who has had their energy sapped by a negative colleague, this book will help rescue them. These problems and many others can be helped by reading this book which contains an enormous amount of practical advice, tips and ideas to make anyone brilliant. 3. Feisty at Fifty by Sudha Menon If you ever thought that women in their 50s must lead dull, boring lives, Sudha Menon is here to bust your myths and show you that life indeed begins at 50. Join this wise and witty 50-something in pursuing middle-aged sexiness, nailing the work-life balance, taking on the FOMO (fear of missing out), celebrating mid-life discoveries and generally feeling great about ourselves. Hilarious yet poignant, ‘Feisty at Fifty’ is both a moving personal story and the ultimate guide to making the 50s the most fabulous decade of your life yet. 4. The Expertise Economy; by Kelly Palmer and David Blake Keeping people’s skills in sync with fast-changing markets is the biggest challenge of our time. For companies and their employees to succeed, they need to focus on building skills for the future. ‘The Expertise Economy’ shows how the most forward-thinking companies big and small are transforming their employees into experts and ultimately, creating their biggest competitive advantage. The authors provide the latest scientific research on how people really learn and concrete examples from companies in both Silicon Valley and worldwide who are driving the conversation about how to create experts and align learning innovation with business strategy. It includes interviews with people from top companies like Google, LinkedIn, Airbnb, Unilever, NASA, and MasterCard; thought leaders in learning and education like Sal Khan and Todd Rose; among others. The book dares you to let go of outdated and traditional ways of closing the skills gap, and challenges business leaders to embrace the urgency of “re-skilling” and “upskilling” the workforce.
Army life is known for its adventure, but there are a few officers, serving and retired, who are experiencing this by going beyond the framework of their duties. They do so through the wanderlust and passion for biking as they go on uncharted routes of picturesque places and feel the nature closely. The bike provides them freedom and mobility and an unmatched sense of thrill. For these soldiers, there cannot be any better mode of transport than the motorcycle, which gives them the experience of travelling on all sorts of roads and even taking to places that are difficult to reach. Also Read – Add new books to your shelfSharing his adventures with motorcycles, Lt Gen (retired) Satish Dua said, “I had a love for the bike when I was very young. By the time I got commissioned, I already had two bikes, a Yezdi and a Bullet.” After retirement this hero of 2016 surgical strike took up biking as a hobby and now he travels with his two sons enjoying every moment of his ride. “I now own a Ducati and a Bullet and I take good care of them,” said the former Army officer. Also Read – Over 2 hours screen time daily will make your kids impulsive”I never gave up my love for bikes. when I was Major General in North East, instead of going in the staff car I used to go in a Bullet to the office. Even when I was the corps commander in Srinagar I used to ride a bike to my office.” “When I got posted in the Army Headquarters, I came to office only a couple of times on bike as in Delhi it is not conducive to ride a motorcycle,” the officer added. His love for the bike was such that the day he retired, instead of going in a car, he chose to ride his bike to his home and his gesture was appreciated by many. “When I took over as Corps Commander in Srinagar in 2015, I went from Pathankot to Manali to Rohtang Pass on motorbike with my sons. Monsoon had set in and many people advised me not to take this ride. But I went on till Ladakh, where we went to the eastern-most part up to the Pangong Tso lake. I drove 50 km along the lake. It was simply mesmerising – you riding along the beautiful lake and enjoying your drive along with the nature.” This was not the end for the Army soldier as again in the summer of 2016, he went to Gurez across Razdan Pass on motorbike and that too in uniform. “Similarly when I was the General Officer Commanding (GOC) in the northeast, I had gone to Aizwal from Silchar on motorcycle and again in uniform,” Lt Gen Dua said. “I just like it… Open air, the nature and the best part is you can stop anywhere without getting down and take out your phone and click a picture.” Talking about his Himachal trip, the bike lover soldier said he took a ride from Chandigarh along Sutlej and Beas rivers and then to Manali to Rohtang tunnel and came back to Kullu. This was not the first time that he was riding through these routes, as he had done so in 1984. Besides love for bike riding, Lt Gen Dua also has a passion for horseriding and loves riding his favourite horse called ‘Govindaa’. Another senior army officer Lt Gen DR Soni is also a diehard bike lover, who does not leave a chance to be on his bike. He said of all the bike brands, his all time favourite will be the ‘Bullet’ and he proudly calls himself a “Bullet Man”. “I love bikes very much. When I was in the Armoured Corps, I used to go on the bikes. In one unit with 20-25 officers there were at least five to seven Royal Enfields and three or four Jawas, one or two Yezdis and an equal number of scooters,” Lt Gen Soni said. He also recalled how during one of his younger days he decided to take a bike ride from Gwalior to Delhi. “I started off for the road trip on my bike without listening to anyone. For me life was full of fun with adventure and there was never a thought that I will die,” the officer said. “I enjoyed all my rides,” he added. His passion for bike was such that he would ride 100 kms only to watch a movie at a different place and he mostly loved riding bike during rains. This biker has an advice for all passionate bike riders “never drink and drive and always wear a helmet”. Colonel Deepankar Zinta, who is also a serving officer at the Headquarters Army Training Command, Shimla said he had the love for riding bike at a very young age. The officer said that when he was commissioned into the Indian Army in 1997, a friend of his got injured during a routine exercise. His Bullet motorcycle was at the service centre. “He asked me to collect the bike from the service centre. I used to call Bullet a ‘Milkman Bike’. I drove his ‘Milkman bike’ from Pune to Ahmednagar and fell in love with the machine and bought a Bullet for myself. “I travelled a lot with my bike. Bike has always been my passion and they will remain forever,” the officer added.
New 55 plus community offers resort-style living in WestboroughBy Bonnie Adams, Managing EditorDel Webb Chauncy Lake will offer resort-style living in a 55-plus active adult community.Photo/submittedWestborough – This December, the first building of phase one in the 55-plus active adult community Del Webb Chauncy Lake will be welcoming its new homeowners. Located off of Lyman Street, at the site of the former Westborough State Hospital, the 38-acre property will offer homeowners “resort-style” living and single level floor plans that will allow them to live comfortably and elegantly, without the burdens of traditional home ownership.The property is quiet and peaceful, in a country setting, yet also close to shopping and restaurants in Westborough as well as neighboring Marlborough and Northborough and easy access to Routes 9, I-495 and I-90.The company’s Life Tested ® designs show that homeowners in this age group want to live a balanced life that is maintainable and fiscally manageable, according to Melanie Chatterton, Del Webb’s sales manager for the property.“Our mantra is really all about reinvesting in yourself and right-sizing for the life you now want to lead,” she added.Each of the buildings will be four levels, with elevator access. There are seven home designs available to choose from. Homes will range from one bed/one bath on the first floor, 1,030 square feet at $309,995 up to two bed/two bath, 1,469 square feet on the fourth floor, at $455,995. Homeowners will be able to choose things such as flooring, cabinets and countertops. Underground parking will provide safety as well as protection from New England’s winters.“You can really personalize it to your taste. The nice thing is you can choose the items that you find value in, making it distinctly yours,” Chatterton said.The first building, due to be finished in December, is already 65 percent sold. Most of the new homeowners are from the area or have some connection to the area, Chatterton said.“They are looking to stay close to their family but just wanted to have a lifestyle that afforded them more freedom from the demands of taking care of a home. This offers flexibility – a ‘lock and leave situation’ that will allow them to either travel extensively or perhaps live in a warmer part of the country for a few months, then return to Westborough,” she said.As beautiful and spacious as the new homes will be, the outdoor setting will be just as nice.The property is perched on a hill overlooking Lake Chauncy, just minutes from the town beach allowing for swimming, boating, fishing and walking on the town-owned 28-mile Charm Bracelet trails.Three gazebos will be built on the property allowing for new friends to gather and enjoy each other’s company.One of the highlights will be the Lakeside Club, a full featured recreation center complete with a fitness room, game rooms, crafts studio and large multi-purpose rooms that residents can book for their own private events. Outside will be a large heated swimming pool, and tennis and pickleball courts.“This center will really be the heart of the community,” Chatterton said. “There will be a full-time lifestyle director on site that will help plan fun activities based on the desires and interests of the homeowners.”Homeowners will be able to bring their beloved pets to Del Webb Chauncy Lake as well. There are no restrictions as to size or breed, although there is a two-pet limit.“We know people love their pets so we will offer things like dog walking groups and ‘Yappy Hours,’” Chatterton said.Home models will be set up in the new building once it opens for prospective homeowners to tour. Until then, those interested may contact the company to see similar layouts in other Del Webb properties.“We know that this is more than buying a home; this is an emotional lifestyle change,” Chatterton said. “We are here to help you through every decision and answer every question.”For more information, visit www.delwebb.com/homes/massachusetts/greater-boston-area/westborough or contact Chatterton at 508-621-2465 or Melanie.Chatterton@delwebb.com.
Advertisement Until his recent stint on ABC’s “The Bachelorette”, Jordan Rodgers was a marginally successful quarterback at Vanderbilt who bounced around several NFL teams as a backup. His biggest claim to fame is being the brother of Packers All-Pro quarterback Aaron Rodgers.Jordan shocked many Bachelorette viewers, mostly sports loving boyfriends forced to watch the show with their significant other, when he took a shot at his brother on a recent episode. Jordan revealed that he and Aaron do not have a close relationship, or really much of a relationship at all.“It’s just the way he’s chosen to do life,” Jordan lamented. “I chose to stay close with my family and my parents and my brother.”Today in “Read Between the Lines”, Colin and Jason were asked if it’s wrong to criticize Aaron Rodgers for his bother’s comments. Colin said Aaron shouldn’t take heat for the comments because he has other obligations as a franchise quarterback that may limit his “bro” time. “The super successful sibling, often, can’t always be at every family picnic. I’m sorry if Aaron Rodgers can’t be with the “fam”, because he’s preparing to face somebody in the NFC Championship.”Jason agreed that it’s off base to criticize Aaron Rodgers for his relationship with his brother, and he had harsh criticism for Jordan Rodgers using Aaron as his meal ticket to the Bachelorette.“Who is Jordan Rodgers without Aaron Rodgers? Would he be on the Bachelor, or Bachelorette, or whatever show it is, if he wasn’t Aaron Rodgers’ brother? That’s the only reason he’s on there. He’s using Aaron Rodgers to build up himself. This is disgusting.”It’s sad, but sometimes siblings just don’t get along. Jordan likes engagement rings, Aaron prefers Super Bowl rings.“The super successful sibling can’t be at every family picnic” @ColinCowherd on Rodgers relationship with his “fam.”https://t.co/abLXKlRO9c— Speak For Yourself (@SFY) July 12, 2016
Advertisement Today in The Herd, Nick Wright filled in for Colin, and pointed out that even though Harbaugh might be the best football coach on any level, throwing temper tantrums to local reporters over nothing questions isn’t a good look.“When you make 35 times what the governor makes, you’re gonna have to answer questions like the governor. That’s the rules. And to get so abrasive about it. Like those guys are asking you, ‘What did you and your wife do last night?’ They’re not. You had some players missing, two of them were suspended, which two? That’s part of the job.”Harbaugh and the Wolverines are a preseason Top 5 team in many preseason polls, but the question with Harbaugh isn’t whether he’ll win, it’s how long does he stay before his abrasive personality wears out his welcome with his employer. Enjoy every second of Harbaugh, Michigan fans, you never know how long it’s gonna last before he takes a blowtorch to the whole thing.Bet YES on both of these:Jim Harbaugh coaches in National Championship in next 3 yrs & isn’t at Michigan in 5 yrs.https://t.co/X6nl0ZR7Tb— Herd w/Colin Cowherd (@TheHerd) August 16, 2016 Jim Harbaugh is the Gary Busey of college football coaches. Part of the Harbaugh secret sauce is that he’s always unpredictable and has a look in his eye like a guy that could shank you with a toothbrush. He gets people out of their comfort zone and revels in the awkward aftermath. To his utter delight, he has gotten under the skin of Nick Saban and other coaches by aggressively pushing the envelope in recruiting with satellite camps and other nontraditional tactics, including, but not limited to, sleepovers and rap video cameos.When dealing with the media, Harbaugh often looks like he would prefer ripping their still-beating hearts out of their chests and howling maniacally in the moonlight while bathed in their blood, rather than answering basic questions.Yesterday, Captain Comeback had another cringe worthy exchange with the local press. He got testy when asked follow up questions about two players that were suspended and did not appear in the team photo. He wasn’t amused with follow up, and walked out of the press conference, in vintage Harbaugh fashion.Jim Harbaugh was pissed at this press conference today ? pic.twitter.com/SVgVs9XG4t— Kenny E (@Kenny_623) August 16, 2016
Everybody loves a good hockey fight, but goalie fights are next level. In a recent ECHL clash of the titans between the Cincinnati Cyclones and the Quad City Mallards, the two teams’ goaltenders squared up on the ice to throw them thangs.The fight didn’t last long, the Mallards Adam Vay made quick work of Cincy goalie Michael Howser with a vicious one-punch knockout. Vay now has more knockouts than Floyd Mayweather has in the last 5 years.The NHL has phased out fighting in favor of skill, but minor league hockey is all about brawling.If Vay was 1/2 as good of a goaltender as he is a knockout artist, maybe he wouldn’t be playing in Quad City.
The reloaded Browns are hoping to buck 20 years of losing and turn the ‘Factory of Sadness’ into a winner, and among those hoping to do the seemingly impossible is wide receiver Jarvis Landry. If Landry’s performance on the season premiere of HBO’s Hard Knocks is any indication, the relentless losing may be about to end.During a wide receivers meeting, Landry stood up before his teammates and basically called out anyone in the room who wasn’t all in to practice and compete everyday to be great. With help of plenty of explicit language, Landry put his foot in the ground and said the losing culture is done.The Browns have needed this speech since 1999, but better late than never. These Browns feel a little different.Jarvis Landry’s (@God_Son80) speech on tonight’s premiere of #HardKnocks. Well done, Juice! pic.twitter.com/wITFqKlRxQ— uSTADIUM (@uSTADIUM) August 8, 2018 Advertisement
This hands-on workshop will give you the tools to authentically connect with an increasingly skeptical online audience. July 2, 2014 Communication stays within silos instead of spreading across the company. Security talks occur at a low level, and are rarely brought to executives attention. Security professionals warnings are too technical in nature, and don’t translate the threats into easy-to-understand language. Criticisms of existing practices are often filtered out before being presented to management. 5 min read Related: Microsoft Takes to the Front Lines in the War on Cybercrime Security pros can effectively tackle these issues by taking the following actions: Ensure that cross-functional teams are allowed to communicate risks effectively, and that awareness of these risks spread beyond the walls of the IT department. People in engineering, sales and marketing also need to be aware of security risks. IT professionals must turn technical details of security risks into information that can be easily comprehended and digested by upper management. Finally, it is the responsibility of the CIO or top IT executive to address these issues directly with the CEO and executive team. This way, the issues are brought directly to their attention, and facts are not filtered out by intermediate players. Opinions expressed by Entrepreneur contributors are their own. As more data moves into the cloud and across other devices, companies face a greater risk of losing sensitive information to attackers or unauthorized users. Ultimately, organizations that invest in more robust data protection face lower costs in the long run. That’s the message that executives need to hear.Click to Enlarge+ Enroll Now for Free When it comes to cyber security, most CEOs don’t get it. That was the conclusion of a recent survey of IT security professionals on the state of their companies’ defenses against data leaks or malicious attacks.The survey, sponsored by Websense and conducted by the Ponemon Institute, exposes the lack of communication between IT and upper management about the importance of cyber security and the damage a data breach can do to a company’s public image and bottom line.More than half of security professionals believe that their organizations’ security controls don’t provide adequate protection against advanced cyber attacks, according to more than 5,000 IT professionals from 15 countries including the U.S. The same portion of IT professionals said that executives fail to appreciate the value of putting effective security controls in place, and do not equate a data breach with financial loss. This echoes a similar study conducted last year, also by the Ponemon Institute, which concluded that a majority of IT professionals fail to communicate security risks effectively to upper management.Related: CEOs Can No Longer Sit Idly By on CybersecurityIt’s time for a wakeup call. As the size and cost of data breaches continue to mount, CEOs must recognize the importance of protecting their companies’ sensitive data. In this modern era, all enterprises are involved in handling valuable information. There is simply no room for lax practices, a concept that should be understood at all levels and not just among rank-and-file IT workers.These reports show that along with managing and developing defenses against emerging security threats, IT security professionals also need to focus on informing upper management about the seriousness of security threats and convincing them to allocate adequate resources to protect against data breaches.The high cost of low security. Financial repercussions of a data breach are huge — an average of $5.4 million per organization, according to the 2014 Websense-Ponemon report. Last year, we witnessed massive data breaches that took place due to malicious programs such as the RAM Scraper malware and Ransomware.The Target breach that affected millions of customers was the result of malware accessing point of sale terminals within the company’s retail facilities. Target suffered a huge loss as a result of the data breach — possibly as much as $1 billion.CEOs and CIOs ultimately bear the responsibility of data breaches, which means there should be major incentives for everyone to help create better communication channels and work together to ensure implementation of strong security policies and practices within the organization.Senior managers tend to view IT security as a luxury, not a necessity, and often fail to account for the financial implications of a data breach. In the midst of developing new products and services, security takes a backseat, as adding additional layers of security controls can impact time to market and potentially create a less-than-optimal user experience.A stitch in time saves nine. While executives may view the longer product development cycles and additional security protocols as a drain on productivity, studies show that productivity costs are much greater for companies that fail to implement adequate security practices in advance.Related: Cyber Safeguard Faces Big HurdleAccording to a study sponsored by HP Enterprise Security, 30 percent of the cost of a data breach was due to business disruption or lost productivity. The study found that companies that invest in adequate resources, appoint a high-level security leader, and employ certified or expert staff have cybercrime costs that are lower than companies that have not implemented these practices. The cost savings for companies deploying proper security governance practices is estimated at more than $1 million on average, according to the study.So why are so few companies putting adequate focus on security and protecting sensitive data? Less than a third of companies have a crisis-containment plan in place for security breaches and failures, according to a report sponsored by IBM. The problem, we believe, lies in IT professionals not communicating the real costs and benefits of a comprehensive security strategy.How to tell your boss to boost security protocols. To see how the communication between IT professionals and executives can be improved, it helps to take a look at the 2014 Websense-Ponemon report. The report found several key reasons why communication between executives and IT is so ineffective: Free Workshop | August 28: Get Better Engagement and Build Trust With Customers Now