Beale ruled out of Brisbane Tens

first_imgBeale was ruled out of the Brisbane Tens with an elbow injury, less than a day after being named in the Waratahs squad for the tournament.The 29-year-old is one of the tournament’s promotional ambassadors, suffered the injury in training last week and was unable to shake it off in time.Beale will still travel with the team and fulfil his ambassadorial role but his absence on the field is a blow to the tournament, with many teams already reluctant to bring their top-line stars.Hayman said it was disappointing to see a draw card like Beale pull out.”It’s important – people want to see stars playing and it’s a shame that he’s not going to be there,” he said.”The details around that I don’t really want to comment on but he’s a guy that has been around and played at an international level for a good amount of time”He brings a bit of wow factor so it’s obviously a shame that he’s not going to be there.”Brisbane would have been Beale’s first run with the Waratahs since he injured his knee playing for the side in 2016, before a stint in England, but that return will have to wait.“I’m absolutely gutted that I won’t be able to take the field,” Beale said.“I’ve been looking to this tournament from the moment I re-signed with the Waratahs.”It was going to be a real highlight of the season, so I’m bitterly disappointed to miss out.”Beale’s Wallabies teammate Samu Kerevi was full of praise for Beale, having played with him during last year’s Test season.”Kurtley is an exceptional player,” he said.”Especially playing with him on the Spring Tour for the first time for myself playing alongside him – he has an exceptional brain and the way he looks at footy.”You won’t see him in the Tens but you will see him at Super Rugby.”Beale will be monitored in the coming days to determine his availability for the Waratahs’ final Super Rugby trial against the Rebels on February 15 and round one a week later.The Waratahs play the Chiefs, Highlanders and French side, Pau in their Brisbane Tens pool matches.last_img read more

Continue Reading →

Three in a row for Naggo Head

first_imgNaggo Head won their third straight INSPORTS Primary Schools Athletics Championships at the National Stadium yesterday. The Floyd Coke-coached Naggo Head tallied 238 points to top the championships comfortably ahead of second-placed Greater Portmore on 147. They were followed by Spanish Town (95), Lyssons (86), Rousseau (82), Belmont Park (80), Harbour View (77), Lawrence Tavern (70), Portsmouth (63), St John’s (58), Excelsior (37) and Half-Way Tree (32). Alana Reid set the tone for Naggo Head’s victory when she clocked 13.06 seconds to win the girls’ Class One 100m. Reid’s teammate, Juwanna Whitehorne, was third in 13.55 while second went to Tonie-Ann Forbes from Rock Hall in 13.48. The Portmore-based Naggo Head were also the leading team in relays, winning four out of 12 relays. Old Harbour’s Christopher Scott captured the boys’ Class One 100m in 12.46 seconds ahead of Naggo Head’s Yourie Lawrence (12.79), and Antonio Forbes of Belmont Park. STANDOUT PERFORMERS St John’s Asanneya Tomlin was among the standout performers of the championships after she captured Class One girls 200m and 400m. Tomlin, who the 200m on Friday, returned to compete the double when she won the 400m in 1:00.22 yesterday. Quaycian Davis from Naggo Head finished second in 1:00.84 while third went to Domoya Compass of Greater Portmore in 1:02.46. Lyssons’ Quana Walker completed the Class Two sprint double when she won the 100m in 13.56. Chennel Thompson of St Richards was second in 13.63 while third went to Sashauna Smith from Mineral Heights in 13.65. Belmont Park’s Akeem Weir crossed the line first in the Class One boys 400m event, but he was disqualified after he was adjudged to have run out of his lane. The race was awarded to Ronaldo Reid in 56.96. Second went to Kevaughn Thomas of Jessie Ripoll in 59.56 while Stevenson Madden of Naggo Head was third in 59.79.last_img read more

Continue Reading →

NGSA results to be released July 3

first_imgStudents who wrote the National Grade Six Assessment earlier this year will be able to access their results on July 3, 2019.Along with the announcement of the top performers, persons can view their score online with their respective candidate number among other details. This assessment marks the completion of the primary education programme and determines which secondary institution these students would be placed at.The two-day examination was written on April 17 and 18, covering four key subject areas. This year saw an increase in the candidates from 14,551 to 14,715.The NGSA performance is calculated by adding five per cent of each candidate’s Grade Two scores in Mathematics and English, and 10 per cent of the Grade Four score in the same subjects.This is then added to a further 85 per cent of each candidate’s score in those subjects at the Grade Six Assessment. The combined scores in Mathematics and English are then added to the scores gained in Science and Social Studies.However, prior to this, the students had to write the National Grades Two and Four Assessments back in 2012 and 2014 respectively. A percentage of the marks from all three assessments will be calculated to determine the overall performance of each student.Last year, Nalia Rahaman of Westfield Prep was named the top performer, having obtained a perfect score.last_img read more

Continue Reading →

Spectacular Padderborn goal helps thrash Bolton in pre-season

first_img1 Padderborn goal against Bolton Bolton were well beaten by German second division side Padderborn in the club’s pre-season match in Austria.Neil Lennon’s side were hammered 4-1 with the third goal being a superb 40-yard volley from Marcel Ndjeng.last_img

Continue Reading →

THANKS GUYS! RORY AND MAXI STEP DOWN FROM COUNTY TEAM

first_imgDonegal team manager Jim Mc Guinness with his assistants Rory Gallagher and Maxi Curran oversee the warm-up prior to their Ulster Senior Football Championship semi-final victory over Down at Breffni Park earlier this seasonDD EXCLUSIVE: THEY helped bring us tears of a joy a year ago.But today there can only be tears of sadness as Rory Gallagher and Maxi Curran step down from the Donegal county management team.The affable Fermanagh man worked as Jim McGuinness’s No2 on the road to 2012 All-Ireland glory. But work and family commitments have forced both Rory and Maxi to stand aside for the assault on Sam in 2014.Thanks guys! THANKS GUYS! RORY AND MAXI STEP DOWN FROM COUNTY TEAM was last modified: September 17th, 2013 by John2Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pocket (Opens in new window)Click to share on Telegram (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to share on Skype (Opens in new window)Click to print (Opens in new window) Tags:Jim McGuinnessMaxi CurranRory Gallagherlast_img read more

Continue Reading →

Cross Country Ready To Race In Indianola

first_imgThe Drake University cross teams return to central Iowa to compete this week at the Grand View Viking Invitational on Friday afternoon with the women’s race starting at 5 p.m. followed by the men’s race at 5:45 p.m.The meet was originially schedule to be contested at Des Moines’ Water Works Park, however, due to wet conditions it has been moved to Pickard Park in nearby Indianola, Iowa. The park is located at 1468 Hwy 92 East in Indianola.The Bulldogs head into the meet looking to recover from two hard weeks of training and racing to open the season. Friday’s races will serve as another opportunity for the youthful Bulldog teams to gain valuable collegiate racing experience while allowing some competitors to recover from early season injuries.Drake’s women’s team opens the afternoon with a 5-kilometer race followed by a 6-kilometer men’s competition. The women’s team has won the competition four years in a row and took the top two individual spots at last year’s Viking Invitational. Drake’s men won the team title last season and have done so three times in the last five years. Following Friday’s competition, the Bulldogs will have a week off from competition to prepare for the Chile Pepper Festival in Fayetteville, Ark., on Oct. 1. Print Friendly Versionlast_img read more

Continue Reading →

49ers 26, Seahawks 23: First win in 11 meetings comes in OT

first_imgDRAFT STATUS: The Raiders and Arizona Cardinals each fell to 3-11 and thus leapfrogged the 49ers (4-10) atop the 2019 NFL Draft board. The 49ers are at No. 4 between the New York Jets (4-10) and Jacksonville Jaguars (4-10) based on strength of schedule.WINNING DRIVE: Trent Taylor’s 15-yard punt return to the 49ers’ 38-yard line gave them their best starting field position of the game. Matt Breida opened with carries of 4 and 7 yards before aggravating an ankle injury on a 5-yard loss. Dante Pettis (5 catches, 83 yards) then drew a pass-interference penalty, and Jeff Wilson Jr. followed runs of 16, 3 and 4 yards to set up Gould’s winner with 3:06 left.Taylor said of his return: “I just needed a little crease and did what I could to give us good field position. Little stuff like that adds up.”DEFENSIVE PLAY OF THE DAY: Buckner produced a huge, third-down sack after Solomon Thomas and Ronald Blair pressured Russell Wilson out of the pocket, forcing the Seahawks to settle for a tying field goal (23-23 with 5:21 to go).That was Buckner’s 11th sack this season. No. 10 set up a third-and-18 scenario in the third quarter, and he led the 49ers with  11 tackles, four for loss. Buckner also sacked Wilson twice two weeks ago.“Shoot, four times in one year? That’s a great year,” Buckner said. “He’s a hard man to get with his low center of gravity and quickness. It’s definitely a relief.” He also called it “gratifying” to reach his preseason goal of becoming the first 49er with double-digit sacks since Aldon Smith (19 1/2 in 2012).OFFENSIVE PLAY OF THE DAY: Mullens opened a fourth-quarter drive by dropping a perfect pass over Dante Pettis’ shoulder for a 30-yard gain to the Seattle 45. “That was absolutely insane, a heck of a pitch-and-catch by those two,” George Kittle said.BEST SPECIAL-TEAMS PLAY: Gould’s winning field goal deserves its own category. So let’s recognize Richie James’ 97-yard kickoff return, a swift response to the Seahawks’ opening-series touchdown. James benefited from terrific blocks by Tarvarius Moore, Mark Nzeocha and James Onwualu, and a not-so-great tackle attempt by kicker Sebastian Janikowski.Said James: “When I saw the kicker on the left, I was like, ‘I’ve got to make him miss and then I’m going to keep running.” It was the 49ers’ first kickoff return for a touchdown since Ted Ginn Jr. in the 2011 opener against the Seahawks at Candlestick.TURNOVER TREND: The 49ers failed to record a takeway for the sixth consecutive game, and incredibly they are 3-3 in that span. They have a league-low five takeaways on the season. Mark Nzeocha did force a Wilson fumble but the Seahawks retained possession for an ensuing punt.WORST INJURY: Cornerback Ahkello Witherspoon (right knee) got hurt on the defense’s opening series, and he will undergo an MRI on Monday for what the 49ers initially are calling a sprain; they haven’t ruled out torn ligaments. Tarvarius Moore replaced him and played quite well through a rib injury.CELEK TIME: Tight end Garrett Celek delivered his second touchdown this season and first since the home opener, scoring on a 41-yard catch-and-run past Seahawks safety Tedric Thompson, who slipped on the play. That gave the 49ers a 14-6 lead.“I’ve been waiting all year (because) Celek Time is just infectious. It’s so much fun,” Kittle said. “The whole sideline and stadium just loves it.”Celek Time ⌚️#SEAvsSF pic.twitter.com/gTTuBMFUxp— San Francisco 49ers (@49ers) December 16, 2018KICKING IT: Gould’s first point-after kick gave him 1,500 career points, and then came more work. His third field goal of the game, a 45-yard attempt, put the 49ers ahead 23-20 with 9:51 to go. He is 29-of-30 on field-goal attempts this season, a contract year. Shanahan said he wants to re-sign him, and Gould said of that: “I”m not worried about that. What’s it matter if I get signed today, or two days from now, three months from now? It hasn’t been much of a conversation,” Gould said. “… I’d love to be here.”MULLENS STOCK: Mullens (20-of-29, 275 yards, 1 TD) improved to 3-1 at Levi’s Stadium. Sherman said of him: “He’s shown he can play in the league. I just hope we keep him because teams need a quarterback. This guy isn’t just playing conservative football.” Mullens refrained from patting himself on the back, adding: “If you want to look at a textbook, collective team win, I believe that was it.”BEST RALLY: Jeff Wilson Jr. rallied to set up the winning field goal with a 16-yard run to the Seahawks 25. That helped make up for a lost fumble on his first carry, reminiscent of his lost fumble two weeks ago at Seattle. He lost a yard on his his next carry, dropped a third-quarter screen pass and also drew an unsportsmanlike-conduct penalty for flipping the ball at a Seahawks lineman. Wilson got a chance at redemption, and, “It was awesome the way it ended, because it should give him confidence and make him ready for next week,” Shanahan said.TOUGHEST RUN: Seahawks rusher Chris Carson (22 carries, 119 yards) bulled his way in for a tying touchdown on fourth-and-1 to make it 20-20. He slipped out of D.J. Jones’ grasp, lunged from Elijah Lee’s ankle tackle and slammed into D.J. Reed at the goal line.SECOND-BEST DRIVE: Starting at their own 2-yard line, the 49ers marched 98 yards for a second-quarter touchdown and 14-6 lead. Clutch, third-down completions to Taylor and Pettis set up Celek’s 41-yard touchdown reception 9:29 before halftime.WORST DEFENSIVE PLAY: Free safety Antone Exum whiffed in the open field on Doug Baldwin’s 35-yard touchdown catch, trimming the 49ers’ lead to 14-13 with 5:19 until halftime. Could Exum’s form been impacted by the $53,482 fine he drew last game for unnecessary roughness?Sidenote: Adrian Colbert, the opening-game starter at free safety, is recovering well from a season-ending leg injury and a stabilizing screw soon will be removed from his right ankle.KITTLE COUNT: Coming off last Sunday’s 214-yard outing (first half), tight end George Kittle had catches of 21, 20 and 10 yards, and he also drew a pass-interference penalty in the fourth quarter.WORST DRIVE: The 49ers got the ball with 2:37 remaining at their own 20, and after completions to Matt Breida (9 yards) and Pettis (8 yards), Mullens got sacked twice by Jarran Reed, and those were sandwiched around a Taylor drop.WORST PENALTY: Linebacker Fred Warner draws a Clay Matthews-esque roughing-the-passer penalty to open a fourth-quarter series, as officials ruled he drove Wilson into ground after Wilson threw away the ball.BEST PENALTIES: Pettis’ ability to draw pass interference on the winning drive was huge, but let’s go with Taylor’s down-field block that provoked a retaliatory strike and subsequent unnecessary-roughness penalty on cornerback Justin Coleman in the fourth quarter. The Seahawks got penalized 14 times for 148 yards.TOUGHEST CATCH: Bourne lined up in the left slot, went over the middle, jumped to grab Mullens’ pass, got upended by the shoulder of Griffin and still came down with the 12-yard catch at the 49ers’ 29-yard line. It helped spark the 98-yard, second-quarter drive.FIELD POSITION: The 49ers first three offensive series began inside their 10-yard line: at the 8, 1 and 2.Related Articles Two weeks after losing 43-16 at Seattle, the 49ers have won two in a row for the first time since last December’s 5-0 finish with then-quarterback Jimmy Garoppolo.“They flat out embarrassed us two weeks ago. … It was a long two weeks, for sure,” said DeForest Buckner, who had 11 tackles and raised his season sack total to 11 with Sunday’s pair. “Everyone wanted to get out there and redeem themselves.”Left tackle Joe Staley and tight end Garrett Celek are the only 49ers left from the 2013 team that last beat Seattle, to which Staley said of Sunday’s result: “It feels good, but it stinks that we had to go through a streak like that. I just wish we had more to play for this year.”Let’s get to the highs and lows from the 49ers’ penultimate home game, with the NFC North-winning Chicago Bears due in next Sunday: 49ers Deebo Samuel helping key playoff run as respected rookie (CLICK HERE, if you are unable to view this video or photo gallery on your mobile device.)SANTA CLARA – It took 5 years and 10 straight losses to the Seattle Seahawks before the 49ers finally beat their NFC West rival again, doing so in overtime Sunday 26-23.The 49ers (4-10) won it on Robbie Gould’s fourth field goal, a 36-yard attempt amid rare rain at Levi’s Stadium, where the Seahawks (8-6) had won all four of their previous visits.“Obviously it means a lot beating Seattle for me,” former Seahawk Richard Sherman said. “But it’s the way guys showed up and kept battling. … We’re out there with an incredibly young team. I’m guessing we’re putting out the youngest guys in the league at this point.” Kurtenbach: The 49ers need a new identity — it’s up to Jimmy Garoppolo to provide itcenter_img Roger Craig, high-kicking 49ers running back, has 50-50 chance for induction to Hall of Fame NFL picks Week 16: 49ers rebound, Raiders fall, Patriots clinch 49ers vs. Rams: 5 keys to winning on Saturday night stage last_img read more

Continue Reading →

Boks defeat England, unbeaten on tour

first_img26 November 2012The Springboks completed an unbeaten end-of-year tour with a 16-15 win over England at Twickenham on Saturday. In a battle of two evenly matched teams, the bounce of the ball and a strange decision helped South Africa to victory.The Boks benefited from one of the freakiest tries one will ever see to score their only try, while England captain Chris Robshaw made one of the daftest decisions he will ever make to keep his side from challenging for the win at the end of the contest.Down by four points, with only two minutes and 20 seconds to play, Robshaw chose to kick at the posts instead of kicking the ball out in the corner and going for victory with a try from the lineout. It was a puzzling decision that drew massive boos from the crowd. It also took a minute-and-a-half off the clock and left the Springboks to hold on for only a minute more.‘Very tough’It was, nonetheless, a good performance from the Boks in testing, rainy conditions. “It was very tough out there today. It could have gone either way. England is a quality side,” South Africa’s coach Heyneke Meyer said afterwards.“Our defense was awesome,” he added. “There wasn’t any space and it was a wet ball. But our discipline was very good.“We talked about it before the time and we really did well with that. We only conceded one try on the whole tour and I am very happy about that.”Reflecting on his first year in charge of the men in green and gold, Meyer said: “It was a tough year for us. We lost around 10 players after the World Cup last year and another 10 through injury.Guts“We probably would have lost a match like this earlier in the year, but this time our guts have won it for us. That is what you need to win World Cups.”Captain Jean de Villiers was a happy man after the victory and unbeaten tour run was secured. “It is great. We came over here wanting three wins and we got that, so we’re pretty happy tonight,” he said.“I think we put ourselves under a lot of pressure and made it difficult for ourselves, but earlier in the year we probably would’ve lost this game and we learned from it, stuck through it and got through it.”Best gameIn the week preceding the test, Meyer had urged flyhalf Patrick Lambie to play his natural game and even though the conditions were difficult Lambie showed signs of the vision and attacking instincts that had stood out for the Sharks. It was his best game on tour.At the back, Zane Kirchner excelled in conditions tailor-made for his conservative approach. His steadiness under the high ball was exceptional.In the wet, though, plenty was going to depend on the battle between the two forward packs.South Africa struggled in the set pieces in the first half, with Nigel Owen penalising tighthead Jannie du Plessis a good number of times for scrumming in. On most of those occasions, he appeared to have pinged the wrong player as English loosehead Alex Corbisiero continually turned inwards. Pat Cilliers, a more mobile man, however, steadied the Springbok scrum in the second half as Du Plessis took a well-deserved break after a very long season.Man of the matchAt the back of the scrum, Man of the match Duane Vermeulen was superb. He turned over ball, carried it up well and put in plenty of big hits. He is a very physical player and takes a step back for no one.Vermeulen’s fellow loose forwards, Willem Alberts and Francois Louw, also put in a huge amount of work, and Marcel Coetzee, as he had done throughout the tour, was excellent off the bench. His tackle rate is astounding and his work rate equally good.Lock Eben Etzebeth continued his growth and was a constant threat to steal ball at the front of the lineout as England struggled against the South African big men. It’s astonishing to think that Etzebeth only recently turned 21 and was playing Varsity Cup rugby last year.LineoutsOn the subject of lineouts, the Springboks were brilliant throughout their tour. In their three tests against Ireland, Scotland and England, they never once conceded their own throw-in. Give credit to the lineout jumpers and to hooker Adriaan Strauss too.Playing in place of Bismarck du Plessis and serving as vice-captain, Strauss was one of the Boks best players on tour. His throwing in was superb, his scrumming strong and his work around the park outstanding. His two tries in the test against Scotland were just reward for an outstanding tour.When Saturday’s match began, England were full of fire. They charged down scrumhalf Ruan Pienaar’s first attempt at a kick and then caught Patrick Lambie in possession as he tried to tidy up and forced a penalty out of the flyhalf.Early leadToby Flood, sporting a wonderful “Movember ” Pancho Villa-style moustache, missed the kick, but three minutes later he was on target.The Springboks got back on level terms when Etzebeth stole an England throw-in, giving the Boks attacking ball. After taking it up through a number of phases, England conceded a penalty and Lambie landed the resulting kick at goal from a wide angle.When Jannie du Plessis was blown up by referee Owens at scrum time, Flood was given another opportunity to score and he responded well by splitting the uprights and putting England 6-3 ahead.LevelThat lead lasted only two minutes, however, as Robshaw was penalised for breaking his bind in the set piece and Lambie kicked the penalty.England then launched a series of attacks at the Springboks, but the South African defence was resolute and drove the English back until, after 20 phases, Vermeulen forced a penalty with his attempt to steal possession.An easy penalty by Lambie, after an English defender had entered a ruck from the side, put the Springboks 9-6 ahead. They were to remain in front for the rest of the game.Bizarre tryFour minutes into the second half, South Africa’s lead was extended to 10 points after a bizarre try.The Boks were heavily on attack deep in the England 22 when Ruan Pienaar fed Juandre Kruger, who spilt the ball backwards in a tackle. Scrumhalf Ben Youngs hacked the ball ahead, but straight into JP Pietersen. It rebounded towards the try line where Willem Alberts gathered it up and crashed over for the five-pointer.“All tries are worth five points and we’ll definitely take that one. It was a well-worked try, ” Springbok skipper Jean de Villiers smiled after the game. “Sometimes the bounce of the ball goes your way and definitely tonight it did.”PenaltyIt took England 15 minutes to fnd a reply through Owen Farrell, who had replaced an injured Flood early in the match. He knocked over a penalty after Vermeulen was blown up at a ruck to make it 16-9.With eight minutes to go, Farrell was again on target after Francois Louw was blown up for playing the ball at a ruck while off his feet.England kept pressuring South Africa and with only two minutes remaining were awarded another penalty, which is when Robshaw made his silly decision. It brought England to within a point of South Africa, but almost extinguished their chances of victory.When England lock Mouritz Botha knocked on Lambie’s kick off, South Africa had the ball back and the result was all but confirmed.Would you like to use this article in your publication or on your website? See: Using SAinfo materiallast_img read more

Continue Reading →

Computer Modelers Earn Chemistry Prize

first_imgHow does that work? The question is the starting point for anyone who tinkers with an engine, a watch, or in the case of this year’s winners of the Nobel Prize in chemistry, the proteins inside our bodies. Today, three U.S.-based chemists shared this year’s prize for developing computer models that reveal how proteins and other compounds undergo chemical reactions.All three of this year’s chemistry laureates are naturalized U.S. citizens. Martin Karplus of Harvard University and the University of Strasbourg in France was born in 1930 in Vienna and moved to the United States just before the outbreak of World War II. Michael Levitt of Stanford University’s School of Medicine in Palo Alto, California, was born in Pretoria in 1947, and today is a British, U.S., and Israeli citizen. And Arieh Warshel of the University of Southern California in Los Angeles was born in 1940 in Kibbutz Sde-Nahum, Israel, and still holds Israeli citizenship.The three pioneered new tools for studying chemistry in motion. By the 1970s, researchers had a good idea of what many molecules, including large proteins, looked like. Tools such as x-ray crystallography and nuclear magnetic resonance spectroscopy provided images of molecules in atomic detail. But those pictures were static. They didn’t reveal the intricate dance of electrons and atoms involved in the making and breaking of chemical bonds.Sign up for our daily newsletterGet more great content like this delivered right to you!Country *AfghanistanAland IslandsAlbaniaAlgeriaAndorraAngolaAnguillaAntarcticaAntigua and BarbudaArgentinaArmeniaArubaAustraliaAustriaAzerbaijanBahamasBahrainBangladeshBarbadosBelarusBelgiumBelizeBeninBermudaBhutanBolivia, Plurinational State ofBonaire, Sint Eustatius and SabaBosnia and HerzegovinaBotswanaBouvet IslandBrazilBritish Indian Ocean TerritoryBrunei DarussalamBulgariaBurkina FasoBurundiCambodiaCameroonCanadaCape VerdeCayman IslandsCentral African RepublicChadChileChinaChristmas IslandCocos (Keeling) IslandsColombiaComorosCongoCongo, The Democratic Republic of theCook IslandsCosta RicaCote D’IvoireCroatiaCubaCuraçaoCyprusCzech RepublicDenmarkDjiboutiDominicaDominican RepublicEcuadorEgyptEl SalvadorEquatorial GuineaEritreaEstoniaEthiopiaFalkland Islands (Malvinas)Faroe IslandsFijiFinlandFranceFrench GuianaFrench PolynesiaFrench Southern TerritoriesGabonGambiaGeorgiaGermanyGhanaGibraltarGreeceGreenlandGrenadaGuadeloupeGuatemalaGuernseyGuineaGuinea-BissauGuyanaHaitiHeard Island and Mcdonald IslandsHoly See (Vatican City State)HondurasHong KongHungaryIcelandIndiaIndonesiaIran, Islamic Republic ofIraqIrelandIsle of ManIsraelItalyJamaicaJapanJerseyJordanKazakhstanKenyaKiribatiKorea, Democratic People’s Republic ofKorea, Republic ofKuwaitKyrgyzstanLao People’s Democratic RepublicLatviaLebanonLesothoLiberiaLibyan Arab JamahiriyaLiechtensteinLithuaniaLuxembourgMacaoMacedonia, The Former Yugoslav Republic ofMadagascarMalawiMalaysiaMaldivesMaliMaltaMartiniqueMauritaniaMauritiusMayotteMexicoMoldova, Republic ofMonacoMongoliaMontenegroMontserratMoroccoMozambiqueMyanmarNamibiaNauruNepalNetherlandsNew CaledoniaNew ZealandNicaraguaNigerNigeriaNiueNorfolk IslandNorwayOmanPakistanPalestinianPanamaPapua New GuineaParaguayPeruPhilippinesPitcairnPolandPortugalQatarReunionRomaniaRussian FederationRWANDASaint Barthélemy Saint Helena, Ascension and Tristan da CunhaSaint Kitts and NevisSaint LuciaSaint Martin (French part)Saint Pierre and MiquelonSaint Vincent and the GrenadinesSamoaSan MarinoSao Tome and PrincipeSaudi ArabiaSenegalSerbiaSeychellesSierra LeoneSingaporeSint Maarten (Dutch part)SlovakiaSloveniaSolomon IslandsSomaliaSouth AfricaSouth Georgia and the South Sandwich IslandsSouth SudanSpainSri LankaSudanSurinameSvalbard and Jan MayenSwazilandSwedenSwitzerlandSyrian Arab RepublicTaiwanTajikistanTanzania, United Republic ofThailandTimor-LesteTogoTokelauTongaTrinidad and TobagoTunisiaTurkeyTurkmenistanTurks and Caicos IslandsTuvaluUgandaUkraineUnited Arab EmiratesUnited KingdomUnited StatesUruguayUzbekistanVanuatuVenezuela, Bolivarian Republic ofVietnamVirgin Islands, BritishWallis and FutunaWestern SaharaYemenZambiaZimbabweI also wish to receive emails from AAAS/Science and Science advertisers, including information on products, services and special offers which may include but are not limited to news, careers information & upcoming events.Required fields are included by an asterisk(*)To explore how reactions take place, researchers in the middle of the 20th century built simulations of molecular motion. The simulations took mathematical models for the forces between atoms and used them to calculate how molecules hold together, move, and react. Later, chemists incorporated the models into computer codes that could run more complex simulations. By the late 1960s, there were two such approaches. One used equations of classical Newtonian physics to model the motions of atoms and bonds in molecules like balls connected by springs. Because this approach was mathematically tractable for large numbers of atoms, it enabled researchers to simulate proteins and other large molecules. In 1969, Levitt and Warshel, then both at the Weizmann Institute of Science in Rehovot, Israel, designed just such a program that could track the movements of proteins and other large biomolecules. But it couldn’t calculate the changes in energy involved when chemicals react and form new molecules.Meanwhile, at Harvard, Karplus was deeply enmeshed in the second approach to simulation, called quantum chemistry. This approach was far better at simulating the motion of electrons and atomic nuclei involved in chemical reactions. But it was so computationally demanding that it was useful only in solving the behavior of small molecules.The effort to bring the quantum and classical worldviews together “was a fairly natural progression,” Levitt says. In 1970, Warshel visited Karplus’s lab and brought his classical program with him. The two soon constructed a program that welded their approaches, treating mobile electrons—called pi electrons—with a quantum chemical treatment and atomic nuclei with a classical approach. They then used this to calculate the behavior of linear organic molecules. Although the molecules were far smaller than proteins, the simulation marked the first successful construction of a hybrid model.Karplus and Warshel’s program worked only for flat “planar” molecules. But in 1976, Warshel and Levitt followed it up with a more general approach, and showed that it worked for simulating the behavior of the protein lysozyme, an antibacterial compound that was the first enzyme to have its structure solved by x-ray diffraction. “The prize recognizes developments that started over 40 years ago that still reverberate today through much of chemistry and biology,” says Klaus Schulten, a computer modeling expert at the University of Illinois, Urbana-Champaign.Today, those reverberations include related hybrid “multiscale models” capable of simulating more than 4 million atoms, which researchers are using to reveal the complex chemistry involved in everything from the translation of genes into proteins to the conversion of sunlight into chemical fuel that is at the heart of photosynthesis. Such processes are so complex, Schulten and others say, that they are impossible to study without computers. Now, thousands of researchers are hard at work in the field. Still, Schulten says, the Nobel Committee got it right: “If you had to single somebody out, I think there’s a good case to be made that these three were the right choice.”Even so, Warshel says that he was wary when he reached for the ringing phone this morning at 2 a.m. “I checked to see if they talked in a Swedish accent just to be sure.”last_img read more

Continue Reading →

Landslides sever Imphal-Assam link

first_imgIncessant rain over the past few days in Manipur has triggered multiple landslides in the State and on the national highways that snake through the hills.Government officials on Saturday said that three landslides on NH-37, which connects Imphal to Assam, buried or stranded several vehicles and have rendered large portions of the highway non-motorable. The police said that debris was being cleared and the highway may be reopened soon.The officials said that landslides were reported at Lukhambi, Kotland and Nung.last_img read more

Continue Reading →