ANN ARBOR, MI – APRIL 04: Head coach Jim Harbaugh of the Michigan Wolverines looks on during the Michigan Football Spring Game on April 4, 2015 at Michigan Stadium in Ann Arbor, Michigan. (Photo by Gregory Shamus/Getty Images)Michigan head coach Jim Harbaugh has done a nice job turning around the Wolverines in his first year on campus, and as such, UM fans are looking to celebrate him for Halloween. A quick look on social media reveals that dozens of Michigan supporters are going as Jim Harbaugh – khakis and all – for the holiday. Check it out:@CoachJim4UM @umichfootball @UMichAthletics I present the greatest Halloween costume ever JIM HARBAUGH!! pic.twitter.com/WetOpqNW5J— Jacob Anderson (@Go_Blue1415) October 29, 2015What’s better than Jim Harbaugh? TWO Jim Harbaughs! #GoBlue #Halloween pic.twitter.com/yvy2RLltxx— Susie Pearson (@SusiePearson02) October 28, 2015@umichfootball Happy Halloween Coach Harbaugh! Like my costume? Go Blue! pic.twitter.com/GaCUCqr6uO— Ty Seighman (@sig_ty) October 24, 2015In reality, it’s an easy costume to pull off. Still, we’ll give anyone props who promotes college football on Halloween.
Reviewed by Kate Anderton, B.Sc. (Editor)Jan 23 2019Subpopulations of oligodendrocytes, myelin-producing cells in the brain that are targeted by the immune system in multiple sclerosis (MS), are altered in MS and might therefore have additional roles in the disease than previously described. The results are published in the journal Nature, in a study led by researchers at Karolinska Institutet in Sweden and University of Edinburgh in the UK.Around the world 2.5 million people are living with MS. MS develops when the immune system’s white blood cells attack the insulating fatty substance known as myelin, which is produced by oligodendrocytes and coats nerve fibres in the central nervous system. This interferes with the proper transmission of nerve electric signals and causes the symptoms of the disease.Previously the researchers have investigated oligodendrocytes in a mouse model of MS and shown that they might have a significant role in the development of the disease. In the current study they have mapped oligodendrocytes in human samples from post-mortem brains of MS patients.”While we found some similarities between the mouse model of MS and human MS, our results also unveil differences. We found changes in different oligodendrocyte subpopulations in MS, suggesting a more complex role of these cells in the pathology of the disease, but also in regeneration of new cells,” says Gonçalo Castelo-Branco, Associate Professor at the Department of Medical Biochemistry and Biophysics, Karolinska Institutet, one if the lead researchers of the study.The results show that oligodendrocyte precursor cells, which are thought to have a crucial role in relapsing-remitting MS to restore myelin, are depleted in the progressive disease.”In addition, the proportions of different resident oligodendrocytes in the lesions are changed, along with their properties, suggesting that they might have important roles in MS,” says Eneritz Agirre, postdoctoral researcher in Castelo-Branco’s group at Karolinska Institutet.Related StoriesRush University Medical Center offers new FDA-approved treatment for brain aneurysmsAn active brain and body associated with reduced risk of dementiaSchwann cells induce self-repair of damaged nervesThe researchers used single-nuclei RNA sequencing, which allows determination of genetic activity of individual cells, to investigate the cellular composition of MS lesions with unprecedented resolution.”We found that oligodendrocytes are a diverse population of cells and that different types are likely to have different functions in the brain,” says Professor Charles ffrench-Constant, of the Medical Research Council Centre for Regenerative Medicine at the University of Edinburgh.”Understanding which types of oligodendrocytes are most beneficial in repairing myelin will be crucial for maximising the chances of developing much-needed treatments for MS,” says Professor Anna Williams of the Medical Research Council Centre for Regenerative Medicine at the University of Edinburgh.The researchers also found novel markers that can be useful for the neuropathological characterisation of MS.”Our findings illustrate the power of this technology to study the neuropathology of human diseases such as MS. We predict that the widespread use of this technology with larger numbers of samples will further enhance our understanding of MS and lead to revision of current concepts of the disease,” says Gonçalo Castelo-Branco.Another paper is published simultaneously in Nature, from Professor Jonas Frisén’s group also at Karolinska Institutet, arriving at overlapping conclusions, with a different methodology, Source:https://ki.se/en/
Citation: Algorithm successfully simulates color perception for #theDress image (2018, March 26) retrieved 18 July 2019 from https://phys.org/news/2018-03-algorithm-successfully-simulates-perception-thedress.html The matched color appearance of 15 observers distributed widely across this chart; not restricted to the diagonal line between A-1 and G-7 as it was assumed in previous studies on the appearance of #theDress image. Credit: Ichiro Kuriki Provided by Tohoku University Explore further A novel algorithm to simulate the color appearance of objects under chromatic illuminants has been proposed by Ichiro Kuriki of Tohoku University. The figure shows the result of applying this algorithm to #theDress image. 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. “#theDress image” refers to a photo that went viral on the internet in February 2015, when viewers disagreed over the colors seen in the dress. The discussion revealed differences in human color perception and prompted studies in vision science.How do we perceive colors? The details are not yet fully understood, even for colors that people easily experience. This remains one of the fundamental questions about vision. Objects reflect light from an illuminant on their surfaces. The light that falls on the retina is changed by an illuminant. However, people scarcely perceive object color shifts. Although slight color shifts remain, the human visual system is able to compensate for illuminant changes.Several groups have proposed algorithms to simulate these shifts in color appearance, but problems remain, including the issue of achromatic points. Achromatic points are a series of rays that appear colorless (white to black through gray) under a given illuminant, and they work as the basis to evaluate hue and vividness. Therefore, an achromatic point is a keystone in color appearance simulations, but previous models by other groups proposed complicated formulas to simulate achromatic points.Kuriki previously discovered a simple method to approximate these achromatic points under a chromatic illuminant. By combining this with a lightness adjustment, a simple algorithm was proposed to simulate the appearance of color under a colored illuminant. The algorithm was applied to #theDress image, widely acknowledged for its huge individual differences in color appearance. More information: Ichiro Kuriki, A Novel Method of Color Appearance Simulation Using Achromatic Point Locus With Lightness Dependence, i-Perception (2018). DOI: 10.1177/2041669518761731 Brightness and darkness as perceptual dimensions Such variability is known to originate from differences in the estimated color and intensity of the illuminant falling on the dress. For example, if a viewer assumed a bluish dim illuminant, they perceive the dress as white/gold. The color and intensity of illuminant was systematically varied and successfully simulated differences in color appearance of #theDress under various assumptions (Figure); one of these pieces may resemble what you perceive from #theDress image.The method is also capable of preserving the wider color range of the image’s darker parts, even when adjusted for the lightness to simulate a dimmer situation. This is advantageous for high dynamic range displays such as OLED screens. Simulation of individual differences in the appearance of #theDress image, including two extremes: white/gold (top left: A-1) and blue/black (bottom right: G-7). Original corresponds to the center (D-4). Credit: Ichiro Kuriki
Explore further The strike began in Barcelona last week and spread to Madrid at the weekend as drivers blocked main thoroughfares, demanding action from the government against what they believe is poor enforcement of regulations on VTCs (Tourism Vehicles with Chauffeur).On Monday, it spread even further to cities across the country.Elite Taxi, one of Spain’s taxi federations, tweeted Tuesday that its members and those of other associations had “reached a deal to continue with the stoppage” at least until Wednesday when a transport-related meeting takes place between the government and regional authorities.”We will be able to know more about the government’s intentions,” it said.The strike mirrors other similar work stoppages in European countries, as taxis across the continent complain ride hailing competitors are threatening their livelihoods, arguing for instance their licences are much more expensive than those for VTCs.In Madrid on Tuesday, white taxis blocked the main Paseo de la Castellana thoroughfare, joined by several Portuguese drivers who had come to show their support, their country’s green and red flag draped on their cars.In Barcelona, hundreds of black and yellow taxis remained parked on the Gran Via, one of the seaside city’s main roads.The strike started in the tourist magnet of Barcelona on Wednesday after the Spanish government appealed a ruling by the city’s authorities that limited the number of licences for Uber-style services.Taxi federations want the authorities to strictly enforce legislation under which there should be 30 traditional taxis for each VTC.Today there are only five traditional taxis for every VTC, they say, warning that they will extend their action to blocking ports, airports and even the border with France if Madrid fails to act.VTC drivers have in turn criticised their traditional taxi peers, charging some were attacked in Barcelona last week and arguing they are trying to forcefully retain their monopoly. 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. Madrid taxis join Barcelona strike against Uber © 2018 AFP Taxi drivers blocked a major avenue in Madrid on Tuesday as a strike against Uber-style ride hailing services was set to enter a second week Taxi drivers in Spain dug their heels in and vowed to continue Wednesday a strike against ride hailing competitors such as Uber and Cabify that has paralysed major cities. Citation: Taxi strike stretches into eighth day in Spain (2018, July 31) retrieved 18 July 2019 from https://phys.org/news/2018-07-taxi-eighth-day-spain.html
New Yolo anonymous Q&A app attracts millions of teenage users, has parents wary Freedom from social media’s tyrannyRecent studies highlight that young people are becoming increasingly dissatisfied with the narcissistic culture that dominates networks such as Facebook, Instagram and Snapchat. Due to the nature of their design, these platforms encourage people to present idealised versions of themselves. Not only is this emotionally taxing, but deploying the camera filters and other image augmentation tools involved in these idealised presentations means this process can involve a significant workload.Young people increasingly feel that social media can lead to anxiety and feelings of inadequacy that they take from constantly comparing themselves to unrealistic images of other people. In light of these pressures, it’s less surprising that young people are increasingly turning to various forms of anonymous interaction that free them from the need to present a perfect avatar.Instead, anonymous apps provide a forum for young people to engage in what they consider to be more authentic modes of interaction, expression and connection. This can take various forms. For some, anonymity opens up space to be honest about the problems they suffer and seek support for issues that carry stigma—such as anxiety, depression, self-harm, addiction and body dysphoria. It can provide an important outlet for catharsis and, at times, comfort.For others, anonymity gives them a way to pronounce their harsh “truths” on important social issues without fear of retribution for going against popular opinions of their peers. One aspect of the idealised self-presentation of social media is supporting certain views because they are seen to be fashionable among a certain group of people, rather than because they are truly held beliefs. This so-called “virtue signalling” is part of the debate about the authenticity of interactions online. While anonymity doesn’t necessarily create more intellectual discussion, it does provide a more open forum where people can represent their true opinions without fear of being ostracised or harassed for saying the wrong thing.A ban would be shortsightedAnonymity is not perfect, it is not always good, but equally it is not always bad. Cyberbullying is an undoubtedly a serious issue that needs to be tackled. Yet content moderation and the determination of what can, and cannot, be said or shared online is subjective. It is an imperfect system, but calls for an outright ban on anonymity may be short-sighted. They tend to underline the negative associations of anonymity without showing awareness of its positive potential. What is truly needed is education. Certainly more needs to be done to educate young people about the perils of social media consumption. Updated curricula in schools, colleges and universities can, and should, do much more in this respect. But equally, app designers and service providers need to become more aware of the negative effects that their offerings can have. Safeguarding should top the agendas of Silicon Valley companies, especially when they are targeting young people and freeing people to say whatever they like without fear of repercussions. Credit: Anotnio Guillem/Shutterstock Citation: Anonymous apps risk fuelling cyberbullying but they also fill a vital role (2019, July 11) retrieved 17 July 2019 from https://phys.org/news/2019-07-anonymous-apps-fuelling-cyberbullying-vital.html When the anonymous social media app YOLO was launched in May 2019, it topped the iTunes downloads chart after just one week, despite the lack of a major marketing campaign. Designed to be used with social network Snapchat, YOLO lets users invite people to send them anonymous messages. Its viral popularity followed that of other apps, such as the now infamously defunct Yik Yak as well as Whisper, Secret, Spout, Swiflie and Sarahah. All these cater to a desire for anonymous interaction online. The explosive popularity of YOLO has led to warnings of the same problem that led to Yik Yak’s shutdown, namely that its anonymity could lead to cyberbullying and hate speech. But in an age of online surveillance and self-censorship, proponents view anonymity as an essential component of privacy and free-speech. And our own research on anonymous online interactions among teenagers in the UK and Ireland has revealed a wider range of interactions that extend beyond the toxic to the benign and even beneficial.The problem with anonymous apps is the torrent of reports of cyberbullying, harassment and threats that appear to be even more of a feature than in regular social networks. Psychologist John Suler, who specialises in online behaviour, describes this phenomenon as the “online disinhibition effect”. This means people feel less accountable for their actions when they feel removed from their real identities.The veil provided by anonymity enables people to become rude, critical, angry, hateful and threatening towards one another, without fear of repercussion. But this opportunity for uninhibited expression is also what makes anonymous apps both attractive to and beneficial for people who want to use them in a positive way. Explore further This article is republished from The Conversation under a Creative Commons license. Read the original article. Provided by The Conversation 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.
Indo-Asian News Service LucknowJuly 13, 2019UPDATED: July 13, 2019 19:11 IST Special device is made with Israeli technique and is being manufactured by a Pune-based company | File photo from REUTERSHIGHLIGHTSDevice will produce beep sound and red light warning if driver feels sleepyEach device costs about Rs 40,000A proposal to acquire more of these devices will now be sent to state governmentThe Uttar Pradesh State Roadways Transport Corporation (UPSRTC) is planning to deploy special devices in buses that will prevent drivers from dozing off on long-distance routes.The device, equipped with special sensors, will initially warn the driver with a beep sound and red light in the event of him getting sleepy during driving and later slow down the vehicle and put emergency brakes to stop it altogether.A senior UPSRTC official said that a decision to this effect has been taken after the recent accidents on the Yamuna Expressway where drivers have apparently dozed off while driving.The official said that the special device is made with Israeli technique and is being manufactured by a Pune-based company. Each device costs about Rs 40,000.As a pilot project, the device is being used in two buses on the Lucknow-Nepalganj route and two others on the Lucknow-Gorakhpur route and the feedback has been good.A proposal to acquire more of these devices will now be sent to the state government.The UPSRTC official said that the device will be installed on the dashboard of the vehicle. The device will produce a beep sound and red light warning as soon as the driver’s hold on the steering wheel slackens due to slumber.In case, the driver does not react to the beep sound and the slackness continues, the device will automatically put brakes on the bus. The device will also keep an eye on the road ahead and alert the driver in case of over-speeding and overtaking.Uttar Pradesh Chief Minister Yogi Adityanath has already warned transport department officials, saying they cannot escape responsibility for road accidents by blaming drivers.He has asked the Yamuna Expressway authority to follow safety measures strictly. He further asked the department officials to deploy two drivers on state-run buses on routes more than 400 km long, so that they can drive the vehicle alternatively.Also Read | Need for speed on Yamuna Expressway remains uncontrolled despite deadly accidentsAlso Read | 29 dead as Delhi-bound bus falls into drain on Yamuna Expressway, several injuredAlso Watch | Bus travelling on Yamuna Expressway falls into drain, 29 dead, several injuredFor the latest World Cup news, live scores and fixtures for World Cup 2019, log on to indiatoday.in/sports. Like us on Facebook or follow us on Twitter for World Cup news, scores and updates.Get real-time alerts and all the news on your phone with the all-new India Today app. Download from Post your comment Do You Like This Story? Awesome! Now share the story Too bad. Tell us what you didn’t like in the comments Posted byMohak Gupta Tags :Follow UPSRTCFollow TransportFollow Uttar Pradesh UP roadways plans to deploy device to wake up drowsy bus driversThe special device is made with Israeli technique and is being manufactured by a Pune-based company. Each device costs about Rs 40,000.advertisement Next