South African student Buyisiwe Sondezi makes history

first_imgDr Buyisiwe Sondezi is the first woman in Africa to be awarded a PhD in experimental physics. (Image: Yandisa Monakali, UJ.• Cape bones add new chapter to human history • Leading African researchers hunt down Ebola • Doctors on the forefront of innovation • South African women on Forbes Africa tech list • R1-billion investment in science for the people Ndaba DlaminiDr Buyisiwe Sondezi, a student at the University of Johannesburg (UJ), is the first woman in Africa to be awarded a doctoral degree in experimental physics of highly correlated matter.Sondezi graduated as a Doctor of Physics at UJ in September this year. The title of her thesis was “The physical properties of ferromagnetic CeTX compounds, where T is Copper and Gold and X is Silicon and Germanium”.In particular, Sondezi worked on quantum criticality in matter, which is a quantum mechanical property that characterizes the birth of collective behaviour in matter at extremely low temperatures, according to Professor André Strydom, Sondezi’s doctoral thesis supervisor from the Department of Physics.Sondezi’s research drawing global attention“The theme of Sondezi’s research for her PhD and her contributions in published papers are very topical. This research direction is drawing a great deal of attention worldwide, because it is widely recognised as a frontier in the Physics of highly correlated matter,” he says, adding that Sondezi is one of very few women in Africa to employ the technique of inelastic neutron scattering as part of the research in her PhD.“In particular, Dr Sondezi worked on quantum criticality in matter, which is a quantum mechanical property that characterizes the birth of collective behaviour in matter at extremely low temperatures.”Sondezi’s doctoral thesis describes behaviour contrary to established laws and paradigms of Physics. Strydom says he proposed that Sondezi investigate the behaviour of a highly correlated spin system by way of the three magnetic compounds named in the title of her thesis. In essence, her thesis poses the question: “Is it possible to induce fluctuations in a lattice when it undergoes a phase transition into a highly ordered ferromagnetic spin system by applying a magnetic field orthogonal to the direction of the spin arrangement?”.Sondezi’s experimental research investigating this question opened up even more perplexing questions. The project is ongoing and with collaborators in Europe now also involved, there is a fascinating journey of search and discovery that lies ahead, according to Strydom. Dr Buyisiwe Sondezi applys a micro-spot welding pin on a fine gold wire to be attached on an electrical restistivity sample. (Image: Yandisa Monakali, UJ).Venturing into quantum physicsDuring her PhD studies, Sondezi says she found quantum “criticality interesting, although it was extremely difficult”. “Nevertheless, I did it to know what is really happening. In experimental Physics, the only interpretation possible is based on the data you get from the machine,” she says.There was also another challenge that drew Sondezi to venture into quantum physics. She says there are very few people who are in this field. “That drove me into embarking on this, although that had its own difficulties. As I went through my PhD, there were cases where fundamental expertise were needed and could not be easily obtained from other colleagues in the field of magnetism. In cases of this kind of speciality (highly correlated condensed matter) in the absence of Prof Strydom due to conferences and research visits, finding someone to assist me was difficult,” she says.Sondezi’s journey to become a top physicist started way back at a rural school near Newcastle, KwaZulu-Natal. The school had no laboratory and learners had to rely “on what the text book said”. “I had to picture how things are, because the school had no lab. I was just told if you mix ‘one’ and ‘two’ you get a ‘three’,” says Sondezi.After high school, Sondezi enrolled at Vista University in Soweto, which is now part of the University of Johannesburg, graduating with a BSc with major in physics, chemistry and statistics. Deciding to further her studies, Sondezi went to do her honours degree in physics at the same institution.“My first-year Physics lecturer was Prof Hartmut Winkler, who is the Head of Department at Physics now. I saw him as a person who knew what he was doing. He explained things so well and made it clear. I think I first fell in love with physics that year,” she says.After her honours, she went to do her Masters Degree in Physics, researching properties of solar cells, and started a PhD in the same direction. However, the experimental Physics of highly correlated matter beckoned. She switched to her eventual PhD topic with Strydom and started again in 2007. Dr Buyisiwe Sondezi does a liquid nitrogen transfer into the vessel of a superconducting quantum interference devise read more

Find Smokey Bear trackables and help prevent wildfires!

first_imgIt’s always wildfire season somewhere in the U.S., and Smokey Bear is counting on you and your families to be part of the solution by using fire responsibly to reduce human-caused wildfires.Though Smokey has been essential to the reduction of unwanted, human-caused wildfires over the last 75 years, he still needs help. Even today, nearly 9 out of 10 wildfires nationwide are caused by people. In fact, his message is even more relevant today as people are living closer and closer to wildlands and more frequently choosing outdoor recreation activities. Smokey may be 75, but he’s still going strong and his message is more important now than ever before.To celebrate Smokey’s 75th birthday, Geocaching HQ is partnering with the Smokey Bear Wildfire Prevention campaign from the USDA Forest Service, the National Association of State Foresters and the Ad Council to create custom Smokey Bear trackables. Request an iconic Smokey Bear trackable at geocaching.com/SmokeyBear and share your geocaching outings with #SmokeyBear75.Share with your Friends:More SharePrint RelatedHappy Birthday and Happy GeoTour, Smokey Bear!July 2, 2019In “Community”How the geocaching community celebrated Smokey Bear’s 75th birthdayNovember 5, 2019In “Community”MAT – the Travel Bug® that TeachesSeptember 18, 2012In “Learn”last_img

5 Big Tech Companies That Are Killing It On Facebook

first_img john paul titlow 4. Dell You may not think of Dell as all that sexy of a brand thes days, but it’s got the most-liked Facebook page in the Computers/Technology category. With nearly 5 million fans, it’s also one of the fastest-growing. Dell’s Facebook page contains a lot of tacky self-advertising, but the PC vendor also mixes it up with links to “how-to” articles related to computing and technology. That can be pretty handy for the many people who need help with their technology purchases or experience problems down the line. Dell also uses Facebook to administer customer support, which is either smart and proactive – or a response to getting lots of customer complaints via Facebook. An entire tab of the Dell Facebook page is dedicated to support, but the company might want to pay more attention to the comments under each post, where frustrated users sometimes chime in with tech-support problems. Link: Dell on FacebookMetrics: Dell’s AppData stats It’s taken for granted these days that if you run a business, you need to be on Facebook. And while any monkey can click the “Create Page” button, it takes a smart strategy to wind up with the kind of Facebook numbers that are truly brag-worthy.Of course, it doesn’t hurt to be a huge corporation with major brand recognition. But size doesn’t necessarily translate into a solid Facebook presence, either. Heck, the biggest tech company of all apparently doesn’t even need Facebook to succeed. Other than for iTunes, Apple doesn’t maintain any official corporate presence on Facebook. Of those tech giants that do, some are doing a better job than others. Using a mix of metrics and subjective observations, we’ve rounded up five of the savviest tech giants on Facebook. These are by no means the only good examples (and plenty of smaller companies have better, more personable and more creative presences on Facebook), but it’s hard to argue with hard numbers. 5. Amazon It comes as no shock that Amazon has 16 million fans on Facebook. The e-commerce giant sells a ton of things to a ton of people every day, so of course it has a strong presence on the world’s biggest social network. But it’s not just that Amazon has a lot of fans. It’s actually doing a pretty decent job of engaging those fans, despite the occasional corny pun or spam commenter. (A user called “Kindle Fire Giveaway” sure does chime in a lot.) With an inventory as infinite as Amazon’s, it can be hard to know which items to promote. To avoid spamming millions of people with irrelevant products, it tends to choose general-interest items and use Facebook to publicize special sales. Amazon also asks a lot of questions, which is an effective – if patently obvious – way to drive up comments. On any given day, about half a million people are talking about Amazon on Facebook, according to AppData. It’s the fourth most-liked page for a retail company (followed by Walmart, Target and Converse), but it’s growing much faster than all of those pages, adding a quarter of a million new fans per week.Link: Amazon on FacebookMetrics: Amazon’s AppData stats Facebook is Becoming Less Personal and More Pro… 1. YouTubeAside from Facebook itself, YouTube is the most beloved tech brand on the gargantuan social network. In fact, it’s the third most popular Facebook page overall. In a way, though, YouTube’s Facebook page wins by default – it does eactly what everybody else on the Internet does: share YouTube videos. Hard to go wrong with that. When you like YouTube on Facebook, you get exactly what you expect: Viral videos. It’s light on the hackneyed marketing copy and heavy on the snowball fights, news bloopers and One Direction videos. So many One Direction videos. The numbers speak for themselves. Each post yields thousands of likes and almost as many shares. That sharing metric is one of the toughest to drive for a normal brand on Facebook. For YouTube, it just comes naturally. Link: YouTube on FacebookMetrics: YouTube’s AppData stats Related Posts Guide to Performing Bulk Email Verificationcenter_img The Dos and Don’ts of Brand Awareness Videos Tags:#Facebook#social media A Comprehensive Guide to a Content Audit 2. Microsoft (XBox)Plenty of people find Microsoft to be easy to poke fun at, but you’ve really got to hand it to whoever’s managing the fan page for XBox. With 20 million likes, it has twice as many fans as Windows, the most widely used desktop operating system on the planet. Of course, it’s easier to love a gaming and entertainment console than it is to adore the software that powers your PC at work. If social media is all about fostering community and dialogue, XBox has it nailed. The page routinely posts updates and teasers about new games, products and events, with many of its posts getting thousands of likes and dozens of shares. And the XBox team manages to do it without the crutch of inauthentic tricks (“Like this to show read more

10 months agoMaguire: Leicester didn’t deserve Crystal Palace defeat

first_imgMaguire: Leicester didn’t deserve Crystal Palace defeatby Paul Vegas10 months agoSend to a friendShare the loveLeicester City defender Harry Maguire insists they didn’t deserve defeat at Crystal Palace on Saturday.Maguire felt City should have created more chances with the possession they had in the second half but lamented Jamie Vardy’s bad luck after goalkeeper Vicente Guaita pushed his effort onto the post and it rebounded straight back into his arms.“Everyone is disappointed,” Maguire told LCFC TV.“We have worked tirelessly all week trying to put on a good performance this week and the first 20 minutes we started pretty slow.“There was not really any tempo from either team. They probably edged the first 20 minutes, but apart from the first 20 minutes I would say we were the better team and in control of the game.“They then scored when we were playing our best football and in our first spell of pressure. To be fair to the lad it is a great strike, a great finish. We’ll look back and we will work hard.” About the authorPaul VegasShare the loveHave your saylast_img

10 months agoReal Madrid fullback Carvajal: We should’ve finished off Villarreal

first_imgReal Madrid fullback Carvajal: We should’ve finished off Villarrealby Carlos Volcano10 months agoSend to a friendShare the loveReal Madrid fullback Dani Carvajal admits they blew two points for their draw with Villarreal.Real kicked off 2019 with a 2-2 draw against the Yellow Submarine.Carvajal lamented, “We had some real chances to finish the game and make it 1-3, but in the end, we drew and dropped two points. We needed those three points to close the gaps on the leader. Now we need to keep working hard and rack up some points. This is not an easy place to come play. We’re disappointed because we were ahead for practically the whole match and not winning really stings.””We knew that they would have to push forward and leave the defence open. Before finishing with a draw, we had two massive chances to kill it off, we did not finish and they nicked a goal at the end.” About the authorCarlos VolcanoShare the loveHave your saylast_img

10 days agoLindelof urging Man Utd teammate Pogba to stay

first_imgTagsTransfersAbout the authorPaul VegasShare the loveHave your say Lindelof urging Man Utd teammate Pogba to stayby Paul Vegas10 days agoSend to a friendShare the loveVictor Lindelof has urged Manchester United teammate Paul Pogba to stay at the club.Pogba has been linked with a move to Real Madrid in January.”So, he has a contract with the club and is a very important player for us,” he said.”I am very happy to have him as a teammate.”Not only because he is a good person but also because he is a good footballer.”We have a very good relationship, a nice and kind guy who is very fun to hang out with.”There is nothing more to it. We live very close to each other too, so that makes things easier.” last_img

Guardiola claps back at Toures racism accusations

first_imgPep Guardiola has hit back at Yaya Toure, claiming the accusations made by the midfielder that he is racist are nothing more than just a lie.Toure will be leaving Manchester City in this summer as soon as his contract expires, which is probably the main reason why he took a jab at the manager, suggesting he has issues with players of African decent.“He was cruel to me,” Toure stated. “Do you really think Barcelona could have done that with Iniesta? I came to wonder if it was not because of my colour.”“I am not the first to talk about these differences in treatment. In Barca, some have also asked the question. Maybe we Africans are not always treated by some in the same way as others.”“When we realise that he often has problems with Africans wherever he goes, I ask myself questions…”norwich city, manchester city, premier leagueReport: City are stunned by Norwich George Patchias – September 14, 2019 Manchester City was stunned by Norwich City in todays Premier League clash.Much has been made in recent days of the potential impact of Aymeric…“When the day comes that he picks a team featuring five Africans – and not naturalised Africans – I promise I will send him a cake!”Guardiola clapped back, claiming this was a lie and nothing else.“It’s a lie and he knows it.”“We were together for two years and now this is when he says it,” Guardiola said, according to TalkSport.“He never told me face to face.”last_img

Kolasinac reveals Arsenal support after error at United

first_imgSead Kolasinac has revealed how Arsenal players supported him after his gaffe handed Jesse Lingard a goal in their 2-2 draw at United on Wednesday.Arsenal had just taken the lead through a Marcos Rojo own goal, but one minute, an error by Kolasinac gifted United an equalizer.After the game, Unai Emery praised Kolasinac for his overall performance to lift his spirit as he looked miserable.“It’s a good feeling coming into the dressing room like that,” Kolasinac told Sky Sports.Harry Maguire, Manchester UnitedLiverpool legend Nicol slams Harry Maguire’s Man United form Andrew Smyth – September 14, 2019 Steve Nicol believes Harry Maguire has made some “horrendous mistakes” recently, and has failed to find his best form since joining Manchester United.“Especially after knowing you’ve made a mistake and that mistake has potentially cost us two points. It made me feel better.“The manager told me in no uncertain terms not to get too down about it, and that did help me. Everyone in the team too, it wasn’t just the coaching staff.“All the players came over and they consoled me and told me not to get too down about it, and it gives you belief and confidence. You notice then we’re a tight-knit team and I think it’s a positive.”last_img

Children love Treasure Beach Christmas Party with Beaches Resort TCI

first_imgFacebook Twitter Google+LinkedInPinterestWhatsAppProvidenciales, 15 Dec 2015 – One thousand children of Beaches Resort employees were treated to a Christmas party today at Treasure Beach. The children not only hung out with celebrities like Santa and Mrs. Claus but Ernie and The Count of Sesame Street. Staff told Magnetic Media the party is an annual tradition which does make them feel good about being on Team Beaches. The 1,000 children today who got eats and drinks and presents took the number of children treated over the Christmas holidays by Beaches Resort TCI to 3,000 in all. Facebook Twitter Google+LinkedInPinterestWhatsApp PNP Party says it led wooden pier removal by Beaches Royal Turks and Caicos Islands Police Force’s mission to combat abusive images of children online Related Items:beaches resort and spa, children, christmas party, treasure beach Recommended for you Beaches puts former Premier on blast about controversial pierlast_img