Kingston College (KC) continue to go about their business in a workmanlike manner; Calabar High had another so-so day; Christopher Taylor is at it again; and the Edwin Allen machine is cranking into high gear. The ISSA-GraceKennedy Boys and Girls’ Athletic Championships had its fair share of high points yesterday, and with today’s penultimate day of competition promising major excitement with the 100m finals and key hurdles and field events battles, it’s the KC faithful who are happiest at this stage. The boys from North Street lead the way with 37 points, with Jamaica College (JC) keeping them company with 33.5. Petersfield High’s team has impressed all week and they are currently third on 28 points, with St Jago as next best on 24, and defending champions Calabar in fifth with 23.5 points. Edwin Allen have been hitting the right keys so far, hardly putting a foot wrong since the opening day of competition. They are on course to defend their Girls’ title with 47 points after six events, 14 ahead of Hydel, with Excelsior in third place on 26 points. Holmwood (24) and St Jago (23) round out the top five. CLASS TWO’S DEJOUR RUSSELL Calabar will have to work deep into Saturday night if they are to retain their title, but they certainly have the tools to do so. “I am not perturbed. We still have enough depth to go on and win,” said Calabar’s head coach Michael Clarke. Taylor, who already helped himself to the 400m record on Tuesday, was clearly not satisfied as he powered through the line in his Class Two Boys’ 200m semi-final, stopping the clock at 20.80, which betters another Calabar man – Ramone McKenzie’s 20.89 run in 2007. His schoolmate, Dejour Russell, followed up that run with an impressive one of his own, clocking 21.08 to win his semi-final, knowing very well that the defending champions will be banking heavily on maximising points in this event in tomorrow’s final. Herbert Morrison scored an unlikely one-two in the Boys’ Class Three high jump final, pushing with gold-medal winner Antonio Hanson and his teammate, Javeir Hall, both clearing 1.85m, in the process pushing pre-Champs favourite Lamar Reid (Calabar), 1.75m into third place. Edwin Allen High’s Janique Burgher won the Class Three girl’s high jump event after clearing 1.70m ahead of Shauntia Davidson (Hydel), 1.65m, and Excelsior’s Kaliah Jones, who also cleared 1.65m. In a closely contested girls Class Four long jump final, St Jago’ Dayshanae Hall took home the gold with a 5.17m leap, finishing ahead of Edwin Allen’s Paula-Ann Chambers, 5.14m, and Excelsior’s Samoya Neil, 5.13m. Petersfield’s Sanjae Lawrence took gold in the Class One Boys’ discus event with a 53.90m heave to get the better of Excelsior’s Phillip Barnett, 53.78m, and Calabar’s Warren Barrett, who would have been disappointed with his 52.88m bronze-medal mark. The Boys’ Class Two shot put title was won by Petersfield’s Daniel Cope, with a distance of 16.81m. Second place went to Meadowbrook’s Cobe Graham, 16.22m, with another Petersfield athlete, Courtney Lawrence, 15.62m, taking third. Michael Campbell (JC), who clocked 10.83, and Jhevaughn Matherson (KC), 10.95, both dipped below 11 seconds despite a strong headwind in the Class One Boys’ 100m, with other podium contenders Raheem Chambers (St Jago), 11.02, and Nigel Ellis (St Elizabeth), 11.04, also looking comfortable in qualifying to today’s semi-finals. With Tyreke Wilson missing due to injury, his Calabar teammate Dejour Russell seems to have little to be worried about where the Class Two Boys 100m gold medal is concerned. Russell followed Wilson to the line in a Calabar one-two at last year’s championships, but he is expected to boss the event this time around. He was certainly commanding in winning his heat yesterday afternoon, stopping the clock at 11.49 with little effort. He was still making his way back to the Stadium East area when Munro College’s AndrÈ Edwards posted 10.95 to win his heat and perhaps give the Calabar man something to think about, with JC’s Chislon Gordon, 11.06, and Gary Gordon (St Jago), 11.28, also advancing impressively. Top-billed Jamaica College (JC) pair of defending Class One triple jump champion, O’Brien Wasome, who already won gold in the Class One Boys’ long jump on Wednesday, and record holder Clayton Brown will take their rivalry into today’s final after both booked safe passage from yesterday’s preliminary round. Wasome won his section with a 14.61m effort ahead of Calabar man Javier Lowe, 14.38m, and Old Harbour’s Ryan Brown, 14.15m. Brown was third in his section with a mark of 14.47m, but there is a lot more in the tank. Jordan Scott (Campion), 15.04m, led all qualifiers, with Calabar’s Gabriel Allen, 14.49m, also doing well to qualify. St Jago’s Keenan Lawrence is the form athlete in the Class Two Boys’ 1500m, with many expecting him to seriously test Kemoy Campbell’s record of 3:58.06 set in 2007 He was comfortable in qualifying for the final, winning his heat in 4:12.98 ahead of Calabar’s Kimar Farquharson, who posted 4:13.40 for second place. St Elizabeth Technical’s Dwight Mason was, however, the fastest among the qualifiers, stopping the clock at 4:12.89. The Class One equivalent saw Rusea’s athlete Akeem Colley, who won his heat in a season’s best 4:05.40, registering the quickest time going into the final, with gold-medal favourite and defending champion Shevan Parkes finishing second in a time of 4:06.01. Samara Spencer of Hydel High leads all qualifiers into tomorrow’s final of the Class One long jump – set for 4:53 p.m. – after registering a huge season best of 6.04 metres during yesterday’s prelims. Excelsior will seek to continue their fine showing at this year’s championships in the Class Four high jump final as their duo of Shantae Foreman and Daniel Harris both cleared 1.55m, with gold-medal favourite Foreman doing so on her first attempt. Amelia Davis of Wolmer’s Girl led six others who cleared 1.50m. RETAIN TITLE
Continue Reading Previous ADI: tiny µModule boost regulator for low voltage optical systemsNext How to create compliant documentation for your embedded system and avoid legal pitfalls Continuing to extend the breadth of its interconnect solutions, Harwin has announced the latest addition to the M40 series. With phosphor bronze contacts that are rated for currents of up to 1A, these lightweight, low profile 1mm pitch units are the smallest in the company’s portfolio of cable-to-board connectors. They have been developed specifically to attend to the needs of modern electronic designs, where densely populated PCBs are stacked closely together.M40 connectors are available in both single and double row options, with vertical and horizontal surface mount configurations for the shrouded male headers. This means they are versatile enough to serve a wide array of different layout requirements. Pre-cabled female contacts are available off-the-shelf, with complete cable assembly layouts on request, enabling customers to avoid making heavy investment on crimp tooling (plus all the training and procedural planning that goes with it). As a result, these connectors will prove particularly attractive for prototyping or small volume runs.Supporting 50 mate/un-mate cycles, these components have an insulation resistance of 100MΩ and cover an operational temperature range of -25 to +85°C. Located within an attractive price bracket, they are targeted at industrial control/monitoring, communications infrastructure, industrial drives and consumer electronics. They are supplied in either tube packaging or a tape-and-reel format, thus making them very well suited to automated production processes.Share this:TwitterFacebookLinkedInMoreRedditTumblrPinterestWhatsAppSkypePocketTelegram Tags: Chips & Components
Source:https://news.ncsu.edu/2019/04/ultrasound-aligns-living-cells-in-bioprinted-tissues/ Reviewed by James Ives, M.Psych. (Editor)Apr 11 2019North Carolina State University researchers have developed a technique to improve the characteristics of engineered tissues by using ultrasound to align living cells during the biofabrication process.”We’ve reached the point where we are able to create medical products, such as knee implants, by printing living cells,” says Rohan Shirwaiker, corresponding author of a paper on the work and an associate professor in NC State’s Edward P. Fitts Department of Industrial & Systems Engineering. “But one challenge has been organizing the cells that are being printed, so that the engineered tissue more closely mimics natural tissues.”We’ve now developed a technique, called ultrasound-assisted biofabrication (UAB), which allows us to align cells in a three-dimensional matrix during the bioprinting process. This allows us to create a knee meniscus, for example, that is more similar to a patient’s original meniscus. To date, we’ve been able to align cells for a range of engineered musculoskeletal tissues.”To align the cells, the researchers built an ultrasound chamber that allows ultrasonic waves to travel across the area where a bioprinter prints living cells. These ultrasonic waves travel in one direction and are then reflected back to their source, creating a “standing ultrasound wave.” The soundwaves effectively herd the cells into rows, which align with areas where the ultrasound waves and the reflected waves cross each other.”We can control the alignment characteristics of the cells by controlling the parameters of the ultrasound, such as frequency and amplitude,” Shirwaiker says.Related StoriesPassive cavitation imaging can estimate a drug’s dose and location in the brainUCLA physicians find more effective method for detecting prostate cancerUsing machine learning algorithm to accurately diagnose breast cancerTo demonstrate the viability of the UAB technique, the researchers created a knee meniscus, with the cells aligned in a semilunar arc – just as they are in a natural meniscus.”We were able to control the alignment of the cells as they were printed, layer by layer, throughout the tissue,” Shirwaiker says. “We’ve also shown the ability to align cells in ways that are particularly important for other orthopedic soft tissues, such as ligaments and tendons.”The researchers also found that some combinations of ultrasound parameters led to cell death.”This is important, because it gives us a clear understanding of both what we can do to improve tissue performance and what we need to avoid in order to preserve living cells,” Shirwaiker says.To that end, the researchers have created computational models that allow users to predict the performance of any given set of parameters before beginning the biofabrication process.One other benefit of the UAB technique is that it is relatively inexpensive.”There’s a one-time cost for setting up the ultrasound equipment – which can use off-the-shelf technology” Shirwaiker says. “After that, the operating costs for the ultrasound components are negligible. And the UAB technique can be used in conjunction with most existing bioprinting technologies.”We have a patent pending on the UAB technique, and are now looking for industry partners to help us explore commercialization,” Shirwaiker says.
COMMENTS Karnataka SHARE It is the “power struggle” between Congress leader and former Karnataka chief minister Siddaramaiah and current incumbent HD Kumaraswamy which has resulted in a political crisis in the state, senior BJP leader and Union minister Pralhad Joshi said on Sunday. Dubbing the Congress’s claim of a BJP hand behind the resignation of ruling alliance MLAs to destabilise the government in the state as “bogus”, Joshi said, “All this is happening because the Congress has become leaderless and rather than blaming others, they should settle their house first.” There is complete “anarchy” in Congress and its Karnataka unit is “functioning like an independent entity as central leadership has no say in the state unit,” Joshi, a former chief of the state BJP unit, told PTI. The crisis, which had been brewing ever since the BJP swept the parliamentary polls in the state, deepened as 13 Congress and JD(S) MLAs submitting their resignation to the speaker. The Congress and the JD(S) managed to win just one seat each in the state having 28 Lok Sabha constituencies. The BJP bagged 25 seats and an Independent supported by it won from Mandya. The wobbly coalition in power for 13 months has a strength of 118 in the 224-member assembly and faces the risk of losing majority if the resignations are accepted. Stating that the resignation of MLAs is a “game plan” of Siddaramaiah, Joshi said, “The current political crisis is actually an outcome of power struggle between Siddaramaiah and Kumaraswamy.” On one side Siddaramaiah wants to destabilise the government and on the other, Congress leader DK Shivakumar is working to save it, the BJP lawmaker from Dharwad in Karnataka said. Assembly Speaker Ramesh Kumar, who was not in his office when 12 of the rebel legislators of the coalition went there to put in their papers on Saturday, has said, “Whether the government will fall or survive” would be decided “in the Assembly”. The Assembly session will begin on July 12. The coalition partners, JD(S) and Congress, have been plagued by dissensions over allocation of ministerial berths and distribution of Lok Sabha seats. Published on July 07, 2019 COMMENT Karnataka Chief Minister HD Kumaraswamy and his predecessor Siddaramaiah (file photo). politics SHARE SHARE EMAIL
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