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first_imgNo makeup artist on set? Your actors could end up with shiny skin. Here’s how you can minimize the problem in post-production.All images courtesy of the author.Unwanted shine is every narrative filmmaker’s headache from time to time. It can distract from the story, and it lends an amateur air feel to the production. For example, here is a still from a project I’m currently working on.While there isn’t anything inherently wrong with the picture at the surface level, upon closer inspection we can see a problem.In the shot, the left side of the actor’s cheek is showing unwanted shine. These are specular highlights that are somewhat brighter than normal facial highlights. This sort of shine can be the result of sweat or makeup, and the reflection becomes slightly stronger than the skin tone. It’s important to note that these highlights are different from seeing the side of an actor’s face completely clipped due to improper exposure.For some, this may not be a dilemma. However, when someone brought up the skin shine here, it was all I could see when the actor moved his head.Let’s look at how you can fix this problem. We’re not going to be able to eradicate the shine, but we will be able to dull the glossy texture.In the shot, the actor is wearing a dirt makeup mixture of Aloe Gator SPF Gel and Mehron Star Blend Cake Makeup: ebony color. This was the mixture makeup artists on Terminator: Salvation used to give the characters a “lived-in” dirt effect. The Gator Gel is a substance similar to petroleum jelly, and it’s giving the actor an oily complexion. At the time, we didn’t have any HD translucent powder, which would neutralize the shine, and as a result, we now have to fix this problem in post.For this specific task, we’re going to be working in DaVinci Resolve. So head on over to the color window and find your clip.Using the HSL qualifier, select the specular highlights, and minimize the selected area using the luminance and saturation controls. You want to avoid bringing neutral skin into your selection, but if it’s unavoidable, don’t worry: we can fix that a little later.Next, you want to blur the selection from around 75-150. The amount of shine will dictate how much blur you use.You now want to lower the gain/highlights to minimize the shine, but we don’t want to kill the natural vibrancy of the area, so we’re also going to slightly increase the gamma/midtones. This will reduce the shine, but maintain the overall luminance. If you find that part of the area has become discolored, gently introduce a similar color in the gain color balance controls.Our final image will look like the following. You can now see that the shine is significantly less noticeable, and it looks a lot more natural. There is a slight discrepancy in exposure between the two images. But as the scene has yet to be graded, that is very easy to fix later.Depending on the intensity of the shine, this fix may not always work. Highlights are the enemy when working with digital, and you’re going to want to minimize any post-production work that involves healing them. In this case, we should have had a makeup artist at the ready with the HD powder to avoid this issue, but that’s low-budget filmmaking for you.Looking for more DaVinci Resolve tips? Check out these articles.Reduce Unwanted Skin Shine In Post-Production with DaVinci ResolveEmploy the Usage Tab to Simplify a DaVinci Resolve ProjectDaVinci Resolve Tip: Use Color Keys to Fix White BalanceDaVinci Resolve: Enhance Your Sky in Under Five MinutesSpeed Change Techniques In DaVinci ResolveInterested in our entire collection of Resolve articles? Check them out here.last_img read more

first_imgThe initial trends in the counting of 32 Sikkim Assembly seats and the lone Lok Sabha seat indicate a close contest where the Opposition Sikkim Krantikari Morcha (SKM) is leading over the Sikkim Democratic Front (SDF), that has remained in power for 25 years.Out of seven Assembly seats for which the trends are out the SKM is leading in four and the SDF in three. In the Lok Sabha seat, Indra Hang Subba of the SKM is leading over the SDF’s D.B. Katwal by a margin of over 6,350 votes. The SKM led by P.S. Goley is taking of SDF’s Pawan Chamling who has the record of being the longest serving Chief Minister of the country. The vote share at the Assembly level also indicate a close contest where the SKM’s vote share of 47.6 % whereas the SDF has secured 47.1 % votes.last_img read more

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first_imgLiverpool midfielder Fabinho: Alisson best goalkeeper in Englandby Freddie Taylor10 months agoSend to a friendShare the loveFabinho says Liverpool teammate Alisson is the Premier League’s best goalkeeper.The Brazilian’s gaffe allowed Jesse Lingard to equalise during Liverpool’s 3-1 victory over the Red Devils on Sunday.But Fabinho has stuck by his compatriot.”When we entered the locker room, we even talked, but I did not even focus on that,” he added. “[Alisson] came to comment, but I said “no, bro, let it go”.”These plays will always happen. And what are we going to talk about Alisson? He was very important in our qualification for the last 16 of the Champions League, days before.”Without a doubt, he is the best goalkeeper of the English League. There is a lot of confidence.” About the authorFreddie TaylorShare the loveHave your saylast_img read more

first_imgWillian enjoying Chelsea veteran roleby Freddie Taylor25 days agoSend to a friendShare the loveChelsea winger Willian is enjoying his different role within the squad this season.The Brazilian is now one of the senior members of the team, given the youth injection from manager Frank Lampard this summer.And Willian is happy to pass on his knowledge to the youngsters. But he insists that he has a lot to offer on the pitch as well. More than anything, he is happy at the club.”I enjoy it a lot,” he said to the club’s website.”I enjoy myself, I enjoy it with my team-mates and I have pleasure to play with them and this is what I want – to have pleasure, play, enjoy myself on the pitch and get the results.” About the authorFreddie TaylorShare the loveHave your saylast_img read more

first_imgSky UK CEO Stephen van Rooyen has criticised the floating of plans by the Remote Gambling Association (RGA), which represents gambling firms including Bet365, Paddy Power and Ladbrokes, to voluntary implement a ‘whistle-to-whistle’ ban on TV advertising of their services during the airing of sports fixtures on TV.Stephen Van RooyenIn an article published in The Times, Van  Rooyen said that “the inconvenient truth” was that “over 80% of the gambling industry’s advertising is in the largely unregulated online world” and that a ban on TV advertising would not address this issue.“If the RGA and gambling companies are serious about protecting vulnerable gamblers, then they should start by looking at where they spend the most money, what has the least level of regulation and where there is most evidence of harm: the online world,” he said.Van Rooyen’s intervention follows reports last week that the RGA was ready to voluntarily agree a TV ad ban during sports broadcasts that began before the 21:00 ‘watershed’ amid growing concern about the societal impact of the UK’s gambling habit.The RGA responded to a BBC report of the plan by denying that a complete ban had yet been agreed.Van Rooyen denied that his views were those of “a broadcaster scared of losing TV ad revenue”, pointing out that the pay TV operator had agreed to limit the number of gambling ads to one per commercial break.He said that TV advertising is “already highly regulated” and that online advertising, by contrast, is not regulated to anything like the same extent. Van Rooyen said that pulling TV advertising would simply shift advertising “even further online”  enabling targeting of the vulnerable via smartphones, tablets and computers, as well as depriving broadcaster of ad revenue in favour of gambling firms and online technology companies that avoid their tax commitments.last_img read more

Source:https://news.northwestern.edu/stories/2018/december/fitness-instructors-comments-shape-womens-body-satisfaction Reviewed by James Ives, M.Psych. (Editor)Dec 14 2018Exercise has been called a double-edged sword for women when it comes to body image as some types of exercise seem to improve body esteem, whereas others have the potential to lower it.In other words, from a psychological perspective, not all fitness approaches are created equal.A new Northwestern University study found that while exercise, in this case, a 16-minute conditioning class, generally improved women’s mood and body satisfaction, women felt even better if the instructor made motivational comments that focused on strength and health instead of on losing weight or changing the appearance of one’s body.”Our goal was to determine whether the psychological outcomes of a fitness class might vary based on whether the instructor made motivational comments based on health verses appearance,” said Renee Engeln, lead author of the study and professor of instruction in psychology in the Weinberg College of Arts and Sciences at Northwestern.Related StoriesA short bout of exercise improves brain function, study revealsIt’s never too late to take up exercise, advise researchersLiver fat biomarker levels linked with metabolic health benefits of exercise, study findsAfter taking the class, women reported more positive emotions and felt more satisfied with the shape of their body if the instructor said things like, “This exercise is crucial to developing strength in the legs; these are the muscles that truly help you run, jump, sprint like a super hero!” Those randomly assigned to the class in which the instructor made appearance-focused comments like, “This exercise blasts fat in the legs, no more thunder thighs for us! Get rid of that cellulite!” didn’t show those same improvements.”We also asked the women to list three words that described how they felt at the end of class,” said Engeln, author of “Beauty Sick” (HarperCollins, 2017). “Those who heard appearance-focused comments were much more likely to write things like ‘ashamed’ and ‘disgusted with myself.’ Those in the health-focused classes were more likely to write things like ‘accomplished’ and ‘strong.'”Engeln said the study is one more reminder that words really matter.”The women in this study all did the same exercises, in the same room, with the same music playing,” Engeln added. “Yet just modifying the script the fitness instructor used had a meaningful impact on the way they felt about themselves afterward.”If we want people to stick with exercise, we need to remove shame from the equation. This study points to an easy and cost-free step that fitness instructors can take to make their classrooms healthier, more inclusive and more inspiring.””Tone it Down: How Fitness Instructors’ Motivational Comments Shape Women’s Body Satisfaction” published online and will be in the December print issue of the Journal of Clinical Sport Psychology. In addition to Engeln, co-authors include Margaret Shavlik of Vanderbilt University and Colleen Daly of Northwestern. read more

first_img Source:https://www.utsouthwestern.edu/newsroom/articles/year-2019/two-hit-model.html Reviewed by James Ives, M.Psych. (Editor)Apr 12 2019Nearly half of current hospital admissions for heart failure are caused by a type of disease with no treatment options. Cardiology researchers at UT Southwestern Medical Center are changing that reality with a fresh approach, recently published in Nature.”There are two types of heart failure. One is called HFrEF, for which we have a number of therapies, including medications, devices, and transplants. The other – HFpEF – has zero options,” explained UT Southwestern Chief of the Division of Cardiology and Professor of Internal Medicine and Molecular Biology Dr. Joseph Hill.”HFpEF is the single greatest unmet need in cardiology. Finding a new way to examine it represents a significant advance, as it provides a model necessary to develop and test therapies that could save lives worldwide,” said Dr. Hill, who holds the James T. Willerson, M.D. Distinguished Chair in Cardiovascular Diseases and the Frank M. Ryburn, Jr. Chair in Heart Research.The Centers for Disease Control and Prevention estimates that 5.7 million people have heart failure in the U.S.Heart failure with preserved ejection fraction (HFpEF) is a lethal disorder for which there are no effective clinical therapies. The heart muscle becomes too stiff to pump blood efficiently. Most HFpEF patients are obese, have diabetes, and have metabolic syndrome.Heart failure with reduced ejection fraction (HFrEF) functions differently. In HFrEF, also known as systolic HF, the heart muscle is not able to contract adequately and, therefore, expels less oxygen-rich blood into the body. Previous heart failure models of HFpEF focused on raising the levels of an enzyme called NO, or nitric oxide synthase.However, in HFpEF, there is actually too much of the NO enzyme. A strike on this target – with a medical inhibitor, for example – would solve the problem. According to Dr. Hill, there are already FDA-approved drugs that inhibit this NO-synthesize enzyme, which could facilitate developing new treatments rapidly.The two-hit modelRelated StoriesTeam approach to care increases likelihood of surviving refractory cardiogenic shockCancer incidence among children and young adults with congenital heart diseaseLiver fat biomarker levels linked with metabolic health benefits of exercise, study findsDr. Hill’s team looked at current, ineffective models of HFpEF and concluded that none of them correctly mirrors the realities they see clinically in human patients. They found that combining a high-fat diet with a drug that raises blood pressure gave them a “two-hit” model, like a one-two punch to the disease.Next, the team examined results of their model at the cellular level and compared them with human cells. They found that they had replicated the human condition, thereby providing scientists an accurate biological picture that can greatly advance the development of new treatments.”A recognized research gap in the HFpEF field is the lack of relevant experimental models that adequately represent the progression of this complex disorder. This study is an example of how advances in HFpEF models can lead to a better understanding of the disease pathophysiology and new ideas for therapeutic strategies,” said Dr. Bishow Adhikari, a program officer for the study and a scientist with the National Heart, Lung, and Blood Institute, part of the National Institutes of Health, which helped fund the study.Millions of people worldwide have both obesity and diabetes. The research team believed that these two conditions would lead to HFpEF – a hypothesis they confirmed by duplicating the disease conditions and examining changes at the molecular level.”Heart failure is one of only two forms of cardiovascular disease that is increasing. It’s exploding around the world,” Dr. Hill said. “We dance around the edges of it, treating patients’ diabetes, blood pressure, and other conditions. With this model, we’ll be able to get to the underlying cause so we can get to the root of the problem.”The UT Southwestern researchers are currently taking steps toward moving into human clinical trials based on findings in their preclinical two-hit model. With time, they expect that all heart failure patients will have treatment options.last_img read more

first_img This article was reprinted from khn.org with permission from the Henry J. Kaiser Family Foundation. Kaiser Health News, an editorially independent news service, is a program of the Kaiser Family Foundation, a nonpartisan health care policy research organization unaffiliated with Kaiser Permanente. Reviewed by James Ives, M.Psych. (Editor)Jun 24 2019In the 25 years since she snorted her first line of meth at a club in San Francisco, Kim has redefined “normal” so many times. At first, she said, it seemed like meth brought her back to her true self — the person she was before her parents divorced, and before her stepfather moved in.”I felt normal when I first did it, like, ‘Oh! There I am,'” she said.Kim is 47 now, and she has been chasing normal her entire adult life. That chase has brought her to some dark places, so she asked us not to use her last name. For a long time, meth, also known as speed, was Kim’s drug of choice.Then she added heroin to the mix. She tried it for the first time while she was in treatment for meth.”That put me on a nine-year run of using heroin. And I thought, ‘Oh, heroin’s great. I don’t do speed anymore.’ To me, it saved me from the tweaker-ness,” Kim said, referring to the agitation and paranoia many meth users experience, and how heroin, an opiate, calmed that.Now, Kim has finished treatment for both drugs.Kim was part of the previous meth wave, in the ’90s, and now she’s part of a new meth epidemic that has been sweeping through parts of the United States, especially the West. Deaths involving methamphetamine are up. Hospitalizations are up.Seeking A ‘Synergistic High’Researchers who have tracked drug use for decades believe the new meth crisis got a kick-start from the opioid epidemic.”There is absolutely an association,” said Dr. Phillip Coffin, director of substance use research at the San Francisco Department of Public Health.Across the country, more and more opioid users say they now use meth as well, up from 19% in 2011 to 34% in 2017, according to a study published last year in the journal Drug and Alcohol Dependence. The greatest increases were in the western United States.That research suggests efforts to get doctors to cut down on writing opioid prescriptions may have driven some users to buy meth on the street instead.”Methamphetamine served as an opioid substitute, provided a synergistic high, and balanced out the effects of opioids so one could function ‘normally,'” the researchers wrote.It’s kind of like having a cup of coffee in the morning to wake up, and a glass of wine in the evening to wind down: meth on Monday to get to work, heroin on Friday to ease into the weekend.Amelia said that’s how her drug use evolved to include meth — she also asked that we use only her first name because she has used illegal substances.At first, drugs were just a fun thing to do on weekends — ecstasy and cocaine with her friends. Then, on Monday, Amelia went about her workweek.”I’m a horse trainer, so I worked really hard, but I also partied really hard,” she said.Then one weekend, when Amelia was feeling kind of hung over from the night before, a friend passed her a pipe. She said it was opium.”I thought it was like smoking weed or hash, you know? I just thought it was like that,” Amelia said.She grew to like the opium stuff. Eventually, Amelia met up with her friend’s dealer.”The woman said, ‘How long have you been doing heroin for?’ and my jaw nearly hit the ground,” Amelia said. “I was just really, honestly shocked. I was like, ‘What? I’ve been doing heroin this whole time?’ I felt really naive, really stupid for not even putting the two together.”Pretty soon, Amelia started feeling sick around the same time every day. It was withdrawal symptoms, a clear sign she was becoming dependent on the drug. Her weekend smoke became her daily morning smoke. Then it was part of her lunch-break routine.”I just kind of surrendered to that and decided, ‘Screw it,'” she said. “‘I’ll just keep doing it. I’m obviously still working; I’m fine.'”Related StoriesCannabidiol reduces cue-induced craving and anxiety in individuals with history of heroin abuseOpioids are major cause of pregnancy-related deaths in UtahFlorida is the latest Republican-led state to adopt clean needle exchangesA heroin habit is expensive. Amelia was working six days a week to pay for it. Any horses that needed to be ridden, any lessons that needed to be taught, she said ‘yes,’ because she wanted the money.But bankrolling her heroin habit was exhausting. One day, one of the women she worked with at the horse barn offered her some meth as a pick-me-up.Meth is comparatively cheap. It became the thing that kept Amelia going so she could earn enough money to buy heroin.”The heroin was the most expensive part,” she said. “That was $200 a day at one point. And the meth was $150 a week.”This pattern lasted for three years, until Amelia discovered she was pregnant. As soon as her daughter was born, she entered a residential treatment program in San Francisco, called the Epiphany Center, that would accept her and her baby.”I was OK with being a drug addict. I was OK with that being my life,” she said. “But I wasn’t OK with having kids and letting that be part of my life.”Rehab Admissions On The Rise For Users Who Mix Meth, HeroinAdmissions to drug rehabilitation for heroin have remained steady in recent years in San Francisco. But the number of heroin addicts reporting methamphetamine as a secondary substance problem has been rising. In 2014, 14% of heroin users said meth was also a problem. Three years later, 22% said so.”That is very high,” said Dr. Dan Ciccarone, a physician and professor at the University of California-San Francisco who has been studying heroin for almost 20 years. “That’s alarming and new and intriguing and needs to be explored.”The speedball — heroin and cocaine — is a classic combination, he said.”It’s like peanut butter cups, right? Chocolate and peanut butter together,” he said. “Methamphetamine and heroin are an unusual combination.”The meth-and-heroin combo is referred to as a goofball, Ciccarone added, because it makes the user feel “a little bit silly and a little bit blissful.”For Kim, adding heroin to her methamphetamine habit compounded her use. “I ended up doing both, at the same time, every day, both of them,” she said.It was all about finding the recipe to what felt normal. Start with meth. Add some heroin. Touch up the speed.”You’re like a chemist with your own body,” she said. “You’re balancing, trying to figure out your own prescription to how to make you feel good.”Now Kim is trying to find balance without drugs. She’s been sober for a year. So has Amelia, the horse trainer. Her sobriety anniversary is her daughter’s birthday.This story is part of a partnership that includes KQED, NPR and Kaiser Health News.last_img read more

first_imgBritain’s first 5G phone network went live on Thursday, but customers won’t be able to buy a Huawei 5G phone Explore further British mobile phone operator EE on Thursday became the first in the country to launch a high-speed 5G service, but without smartphones from controversial Chinese technology giant Huawei. Panasonic joins firms stepping away from Huawei after US ban EE, which is a division of British telecoms giant BT, has launched 5G in six major cities comprising Belfast, Birmingham, Cardiff, Edinburgh, London and Manchester—and more hubs will follow.”From today, the UK will be able to discover 5G for the first time thanks to EE,” it announced in a statement, after an official launch featuring a performance from chart-topping grime act Stormzy on a boat on London’s River Thames. Next-generation 5G mobile networks offer almost instantaneous data transfer that will become the nervous system of Europe’s economy in strategic sectors like energy, transport, banking and health care.EE had announced last week that it would make its 5G network available to the public—but would not sell Huawei’s first 5G phone, the Mate 20 X 5G.However, the Chinese company still provides 5G network infrastructure equipment to EE.”We are very pleased to be one of the partners supporting EE with a new era of faster and more reliable mobile connectivity over 5G in the UK,” a Huawei spokesperson told AFP on Thursday.Rival British mobile phone giant Vodafone will launch its own 5G services on July 3 in seven UK cities—but it has also paused the sale of the Huawei Mate 20 X 5G smartphone.Vodafone does not use Huawei in its core UK network but uses a mixture of Ericsson and Huawei technology in its radio access network or masts, according to a company spokesman. He added that there are “multiple” layers of security between the masts and the core network.Huawei faces pushback in some Western markets over fears that Beijing could spy on communications and gain access to critical infrastructure if allowed to develop foreign 5G networks.The Chinese company flatly denies what it describes as “unsubstantiated claims” about being a security threat.US internet titan Google has meanwhile started to cut ties between its Android operating system and Huawei, a move that affects hundreds of millions of smartphone users, after the US government announced what amounts to a ban on selling or transferring technology to the company.Earlier this week, Huawei asked a US court to throw out US legislation that bars federal agencies from buying its products.The US moves against Huawei come as the Washington and Beijing are embroiled in a wider trade war.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. © 2019 AFP Citation: Telecoms giant EE launches Britain’s first 5G services (2019, May 30) retrieved 17 July 2019 from https://phys.org/news/2019-05-telecoms-giant-ee-britain-5g.htmllast_img read more

first_imgOmer Tanovic, a Ph.D. candidate in the Department of Electrical Engineering and Computer Science, joined the Laboratory for Information and Decision Systems (LIDS) because he loves studying theory and turning research questions into solvable math problems. But Omer says that his engineering background—before coming to MIT he received undergraduate and master’s degrees in electrical engineering and computer science at the University of Sarajevo in Bosnia-Herzegovina—has taught him never to lose sight of the intended applications of his work, or the practical parameters for implementation. 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 Maximization of Vaccinations “Every cell tower has to have some kind of PAPR reduction algorithm in place in order to operate. But the algorithms they use are developed with little or no guaranties on improving system performance,” Omer says. “A common conception is that optimal algorithms, which would certainly improve system performance, are either too expensive to implement—in terms of power or computational capacity—or cannot be implemented at all.”Omer, who is supervised by LIDS Professor Alexandre Megretski, designed an algorithm that can decrease the PAPR of a modern communication signal, which would allow the power amplifier to operate closer to its maximum efficiency, thus reducing the amount of energy lost in the process. To create this system he first considered it as an optimization problem, the conditions of which meant that any solution would not be implementable, as it would require infinite latency, meaning an infinite delay before transmitting the signal. However, Omer showed that the underlying optimal system, even though of infinite latency, has a desirable fading-memory property, and so he could create an approximation with finite latency—an acceptable lag time. From this, he developed a way to best approximate the optimal system. The approximation, which is implementable, allows tradeoffs between precision and latency, so that real-time realizations of the algorithm can improve power efficiency without adding too much transmission delay or too much distortion to the signal. Omer applied this system using standardized test signals for 4G communication and found that, on average, he could get around 50 percent reduction in the peak-to-average power ratio while satisfying standard measures of quality of digital communication signals.Omer’s algorithm, along with improving power efficiency, is also computationally efficient. “This is important in order to ensure that the algorithm is not just theoretically implementable, but also practically implementable,” Omer says, once again stressing that abstract mathematical solutions are only valuable if they cohere to real-world parameters. Microchip real estate in communications is a limited commodity, so the algorithm cannot take up much space, and its mathematical operations have to be executed quickly, as latency is a critical factor in wireless communications. Omer believes that the algorithm could be adapted to solve other engineering problems with similar frameworks, including envelope tracking and model predictive control.While he has been working on this project, Omer has made a home for himself at MIT. Two of his three sons were born here in Cambridge—in fact, the youngest was born on campus, in the stairwell of Omer and his wife’s graduate housing building. “The neighbors slept right through it,” Omer says with a laugh.Omer quickly became an active member of the LIDS community when he arrived at MIT. Most notably, he was part of the LIDS student conference and student social committees, where, in addition to helping run the annual LIDS Student Conference, a signature lab event now in its 25th year, he also helped to organize monthly lunches, gatherings, and gaming competitions, including a semester-long challenge dubbed the OLIDSpics (an homage to the Olympic Games). He says that being on the committees was a great way to engage with and contribute to the LIDS community, a group for which he is grateful.”At MIT, and especially at LIDS, you can learn something new from everyone you speak to. I’ve been in many places, and this is the only place where I’ve experienced a community like that,” Omer says.As Omer’s time at LIDS draws to an end, he is still debating what to do next. On one hand, his love of solving real-world problems is drawing him toward industry. He spent four summers during his Ph.D. interning at companies including the Mitsubishi Electric Research Lab. He enjoyed the fast pace of industry, being able to see his solutions implemented relatively quickly.On the other hand, Omer is not sure he could ever leave academia for long; he loves research and is also truly passionate about teaching. Omer, who grew up in Bosnia-Herzegovina, began teaching in his first year of high school, at a math camp for younger children. He has been teaching in one form or another ever since.At MIT, Omer has taught both undergraduate- and graduate-level courses, including as an instructor-G, an appointment only given to advanced students who have demonstrated teaching expertise. He has won two teaching awards, the MIT School of Engineering Graduate Student Extraordinary Teaching and Mentoring Award in 2018 and the MIT EECS Carlton E. Tucker Teaching Award in 2017.The magnitude of Omer’s love for teaching is clear when he speaks about working with students: “That moment when you explain something to a student and you see them really understand the concept is priceless. No matter how much energy you have to spend to make that happen, it’s worth it,” Omer says. Provided by Massachusetts Institute of Technology Omer Tanovic says that his engineering background has taught him never to lose sight of the intended applications of his work, or the practical parameters for implementation. Credit: Massachusetts Institute of Technologycenter_img Explore further This story is republished courtesy of MIT News (web.mit.edu/newsoffice/), a popular site that covers news about MIT research, innovation and teaching. “I love thinking about things on the abstract math level, but it’s also important to me that the work we are doing will help to solve real-world problems,” Omer says. “Instead of building circuits, I am creating algorithms that will help make better circuits.”One real-world problem that captured Omer’s attention during his Ph.D. is power efficiency in wireless operations. The success of wireless communications has led to massive infrastructure expansion in the United States and around the world. This has included many new cell towers and base stations. As these networks and the volume of information they handle grow, they consume an increasingly hefty amount of power, some of which goes to powering the system as it’s supposed to, but much of which is lost as heat due to energy inefficiency. This is a problem both for companies such as mobile network operators, which have to pay large utility bills to cover their operational costs, and for society at large, as the sector’s greenhouse gas emissions rise.These concerns are what motivate Omer in his research. Most of the projects that he has worked on at MIT seek to design signal processing systems, optimized to different measures, that will increase power efficiency while ensuring that the output signal (what you hear when talking to someone on the phone, for instance) is true to the original input (what was said by the person on the other end of the call).His latest project seeks to address the power efficiency problem by decreasing the peak-to-average power ratio (PAPR) of wireless communication signals. In the broadest sense, PAPR is an indirect indicator of how much power is required to send and receive a clear signal across a network. The lower this ratio is, the more energy-efficient the transmission. Namely, much of the power consumed in cellular networks is dedicated to power amplifiers, which collect low-power electronic input and convert it to a higher-power output, such as picking up a weak radio signal generated inside a cell phone and amplifying it so that, when emitted by an antenna it is strong enough to reach a cell tower. This ensures that the signal is robust enough to maintain adequate signal-to-noise ratio over the communication link. Power amplifiers are at their most efficient when operating near their saturation level, at maximum output power. However, because cellular network technology has evolved in a way that accommodates a huge volume and variety of information across the network—resulting in far less uniform signals than in the past—modern communication standards require signals with big peak-to-average power ratios. This means that a radio frequency transmitter must be designed such that the underlying power amplifier can handle peaks much higher than the average power being transmitted, and therefore, most of the time, the power amplifier is working inefficiently—far from its saturation level. Citation: Making wireless communication more energy efficient (2019, July 4) retrieved 17 July 2019 from https://phys.org/news/2019-07-wireless-energy-efficient.htmllast_img read more

first_imgglobal expansion Ireland has started wooing Kerala-based companies to set up units there by using that country as a base to access European markets. Tanaz Buhariwalla, Country Director – India at IDA Ireland, who was here for a road-show, told presspersons that there has been increased interest from Indian companies to use Ireland as their base for growth in Europe. This interest has spiked since Brexit, as companies were concerned about how they would service the European markets from the UK. Over 40 Indian companies from the IT, services, medical devices, engineering and pharmaceuticals sectors have set up shop in Ireland. “We are excited at the response received from Kochi-based companies that we are in discussion with. We are looking at companies engaged in food processing, agri, IT, life sciences and healthcare workers,” she said. IDA Ireland, the nodal agency to attract investments, is engaging with organisations in IT services, fintech, pharmaceuticals and medical devices, among others. Currently, six of the top 10 Indian IT services companies operate out of Ireland, including TCS, HCL, Wipro, Infosys and Mindtree.Indian and Irish companies are increasingly looking for opportunities to collaborate in key knowledge sectors, and it is encouraging to note the increase in conversations between companies of the two countries. Indian companies are turning to Ireland to benefit from the well-developed sectoral clusters there, and to gain access to valuable European markets, she added. SHARE SHARE EMAIL Brexit Published on August 03, 2018 Kerala companies Tanaz Buhariwalla, Country Director – India at IDA Ireland Ireland COMMENT SHARE COMMENTSlast_img read more

first_imgElection officials carry Electronic Voting Machines (EVM) after collecting them from a distribution centre ahead of the Lok Sabha polls, in Assam’s Dibrugarh district   –  PTI Voters, majority being women, queued up early morning even before polling had began. An estimated 59.5 per cent of the electorate exercised their franchise till 3 pm in five parliamentary constituencies in Assam on Thursday, state Chief Electoral Officer Mukesh Sahu said.Malfunctioning of EVMs have been reported from some booths in the constituencies and have been replaced but the exact number can be ascertained only after the polling personnel returned with the machines, Sahu told PTI.Tezpur, Kaliabor, Jorhat, Dibrugarh and Lakhimpur Lok Sabha constituencies have an electorate of 76,03,458, including 38,65,334 male, 37,37,970 female and 154 of the third gender, who will decide the fate of 41 candidates.Tezpur has recorded the highest of 63.01 percentage followed by Jorhat with 62 per cent and Kaliabor with 60 per cent while Dibrugarh and Lakhimpur recorded 59.9 and 53 per cent respectively.There was all-round enthusiasm among all sections of voters in all the five constituencies to exercise their franchise since early morning.First time voters, women, people with disabilities and elderly citizens came out in large numbers to exercise their franchise and long queues were seen before polling booths through the day.Most of the 225 model polling stations have been decorated with balloons and flowers, while the first voter was offered the traditional Assamese ‘gamusa’Arrangements for drinking water, baby feeding rooms and resting place for the elderly have also been made.In many polling stations, ‘Selfie Point’ has been set up where voters, both young and old, were seen taking selfies after exercising their franchise.Among the prominent candidates to cast their votes in the first half of the day was Chief Minister Sarbananda Sonowal at 153 Asam Sahitya Sabha in Dibrugarh, former CM Tarun Gogoi, his wife Dolly and son Gaurav, who is the sitting MP and contesting Congress candidate from Kaliabor.Lakhimpur Congress candidate Anil Borgohain was the first to cast his ballot at an all-woman polling booth, while his BJP rival and sitting MP Pradan Barua exercised his franchise at Dhemaji.Jorhat BJP candidate and state minister Tapan Gogoi and his Congress rival Sushanta Borgohain, former Union minister and Dibrugarh Congress candidate Paban Singh Ghatowar, Kaliabor AGP-BJP candidate Monimadhab Mahanta accompanied by his brother and state Minister Keshab Mahanta also exercised their franchise in their respective home towns.In Tezpur both Congress candidate M G V K Bhanu and his BJP rival and state minister Pallab Lochan Das arrived at the famed Mahabhairav Temple at the same time to offer prayers before going to the polling station to exercise their franchise.The duo greeted each other, shook hands and even posed together for photographers before leaving the temple premises for their respective polling booths.Polling in Assam will take place in three phases on April 11, 18 and 23. SHARE Action in Andhra Pradesh polls; low voter turnout in Telangana Elections 2019 COMMENTcenter_img Published on SHARE SHARE EMAIL RELATED April 11, 2019 COMMENTSlast_img read more

first_imgThe administration of Puerto Rico Gov. Ricardo Rosselló was engulfed in crisis as top officials resigned and political allies in the U.S. territory withdrew their support after a trove of private messages were leaked. Puerto Rico’s former Chief Financial Officer Christian Sobrino and Secretary of State Luis Rivera Marín resigned their positions on Saturday, after the disclosure of nearly 900 pages of private messages between Gov. Rosselló and top administration officials that included vulgar insults toward prominent public…last_img read more