Will Raiders’ Vontaze Burfict have season-long suspension shortened?

first_imgRaiders linebacker Vontaze Burfict will find out next week whether his season is truly over or not when his appeal of a season-long suspension for another illegal hit is heard on Tuesday.Burfict won’t play Sunday in London, but the fate of the rest of his season lies in the hands of Hall of Fame linebacker Derrick Brooks, the appeals officer appointed by the league and the players’ association to adjudicate the appeal.The NFL Network’s Ian Rapoport first reported Burfict’s case will be …last_img

Respect the Conch Shell

first_imgEngineers and materials scientists seem to never run out of examples in nature that should fill us with awe.  In the Feb. 19 issue of Nature,1 Rosamund Daw brings our attention to the construction ability of the conch shell:Giant conches are seldom treated with the respect they deserve.  Their impressive shells are prized as holiday souvenirs, but size and aesthetics are only half the story.  At the microscopic scale, they are one of nature’s greatest engineering masterpieces: a stunningly intricate hierarchical architecture of inorganic crystals, interwoven with organic molecules.Recent experiments have shed light on the ways these marine organisms build and repair their shells.  An organic layer is deposited, providing a base on which fine crystals of aragonite form perpendicular to the organic layer.  Then a three-layered, cross-lamellar structure grows a few millimeters thick, forming the body of the shell.  The result is a strong, exceedingly fine structure, often decorated with streaks or spots of intricate colors, with bumps and horns and geometric spiral shapes.    Broken shell?  No problem.  When experimenters drilled a hole into the shells of living conches, a new organic layer was formed within 24 hours, upon which new aragonite crystals grew to begin the repair process.    There’s still much to learn about the “complex process of shell formation,” Daw says.  “It remains to be discovered how the interplay of organic and inorganic components is controlled at the molecular level, in conch shells as well as in other mineralized structures.”1Rosamund Daw, “Materials Science: Give a shell a break,” Nature 427, 691 (19 February 2004); doi:10.1038/427691a.This could be a teachable moment on your family’s next trip to the beach.  Tell the kids that this construction project the conch performs is the envy of materials scientists.  Teach them that complex processes that build things do not just happen.  DNA, genes, enzymes, signalling, feedback and quality control all contribute to the work of art that is a seashell.(Visited 11 times, 1 visits today)FacebookTwitterPinterestSave分享0last_img read more

Championing menstrual health with an eye on Guinness

first_imgThe Kendriya Vidyalaya (KV) school near Pune Airport was on Monday transformed into a beehive of activity as 1,700 adolescents gathered in the school premises to attempt a Guinness World Record on generating awareness on menstrual health and hygiene.Organisers of the event claimed that this was the largest ever group of adolescent girls and boys “under one roof” for such a awareness session. on menstrual health and hygiene.The programme was the joint initiative of the Bengaluru-based Motherhood Hospital, a leading healthcare chain specialising in women and children’s health and the Pune-based Spherule Foundation, an NGO that works on women’s empowerment and health-related issues.“We were recently approached by the Records Committee of the Guinness Book of World Records who encouraged us to conduct this event on a larger scale as we had been specializing in the field of women and children’s health. Hence, we tied up with the Spherule Foundation to conceptualize this event of educating adolescent girls and boys on the importance of menstrual health and hygiene,” said Dr. Rajeshwari Pawar, consultant, gynaecologist and obstetrician, Motherhood Hospitals.In her 40-minute address, Dr. Pawar addressed the students in a lively 40-minute speech in which she spoke of the importance of menstrual hygiene and busted stereotypes and myths associated with the subject.She said the unique initiative was aimed at dispelling the many doubts faced by young girls regarding menstruation.“The point of this gathering is to spark awareness among girls and boys on a subject often swept under the carpet,” said Dr. Pawar.She observed that a 2016 survey conducted by UNICEF in the Indian hinterland showed that 80% of the subjects stored their menstrual cloth in an unsanitary place for further use while 50% failed to dry their menstrual rags outside and in full sunlight which is an essential condition required to kill bacteria. “Our joint initiative is trying to help our society understand the importance of menstruation and how to overcome the stigma around it,” remarked Dr. Pawar.“The global silence and shame around menstruation is alarming. In India alone, 23 million girls drop out of schools annually. This translates into one in every five girls owing to lack of menstrual hygiene management facilities, like availability of sanitary napkins and a logical awareness of menstruation,” said Dr. Geeta Bora, Founder, Spherule Foundation.Speaking on the initiative, Vijayarathna V, CEO, Motherhood Hospitals, said: “There is a huge societal gap and lack of knowledge on menstrual hygiene. In India barely 18% of 355 million menstruating women use sanitary napkins with the rest unable to afford them, often resorting to using unhygienic substances such as newspapers, sand, leaves, mud or unsterilised clothes leading to vaginal and urinary tract infections, infertility and other reproductive health complications.”last_img read more