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newcomers to the Asian

in Salary Structure Fri May 25, 2018 11:59 am
by DMT • 355 Posts

WASHINGTON, March 22 (Xinhua) -- U.S. researchers said Wednesday they have developed a low-cost and easy-to-use smartphone device that can accurately measure semen quality in seconds.


More than 45 million couples worldwide are affected by infertility, but current standard methods for evaluating semen quality, which require testing in a clinical setting, are expensive, labor-intensive and slow to return results, according to the study published in the U.S. journal Science Translational Medicine.


"Men have to provide semen samples in these rooms at a hospital, a situation in which they often experience stress, embarrassment, pessimism and disappointment," Hadi Shafiee, principal investigator at the Brigham and Women's Hospital, said in a statement.


"We wanted to come up with a solution to make male infertility testing as simple and affordable as home pregnancy tests."


In the new study, Shafiee and colleagues created a portable device that quantified sperm concentration and motility in seconds, using the processing power and camera found in widely-available smartphones.


The analyzer, assembled for a total materials cost of less than five U.S. dollars, consists of an optical attachment that can connect to a smartphone and a disposable microchip onto which a semen sample can be loaded.


The researchers analyzed 350 specimens, demonstrating that the device was able to detect abnormal semen with either insufficient sperm concentrations or low levels of motility with an accuracy of 98 percent.


"This test is low-cost, quantitative, highly accurate and can analyze a video of an undiluted, unwashed semen sample in less than five seconds," said Shafiee.


What's more, the test was so user-friendly that 10 volunteers with no formal training correctly classified more than 100 semen samples.


Study co-author John Petrozza, director of the Massachusetts General Hospital Fertility Center, called the ability to bring point-of-care sperm testing to consumers or health facilities with limited resources "a true game changer."


"More than 40 percent of infertile couples have difficulty conceiving due to sperm abnormalities," Petrozza said. "This development will provide faster and improved access to fertility care.... we have really been able to create a product that will benefit a lot of people."


The researchers said the smartphone-based fertility test could be also used by men to monitor their semen at home after undergoing vasectomies or by animal breeders to confirm the virility of a sample.


Australia versus China: It should be one of the great rivalries in Asian soccer.


That it isn't Chris Wagner Jersey , at least right now, is a reflection on how long the two regional powerhouses have taken to embrace the world's most popular game.


But the times are changing quickly and on Thursday, the two nations will lock horns in the quarterfinals at the Asian Cup.


The stakes are high and in years to come, this match could be remembered as the start of a long battle for Asian supremacy.


The countries have played each other 10 times before, with Australia winning five times, China four times and the other match drawn, but this will be the first time in a major competition.


There are more than just bragging rights on the line. Neither team have won the Asian Cup before and both have even grander ambitions, investing millions of dollars to develop the talent they need to become contenders at the World Cup.


Although Australia are newcomers to the Asian Cup, -entering the competition for the first time in 2007 after ditching Oceania in search of tougher competition, the pressure is on.


The popularity of the sport in Australia has been rising steadily since the Socceroos ended a 32-year drought by qualifying for the 2006 World Cup and winning the Asian Cup on home soil would be a major shot in the arm for the code.


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