Limitation of size by hypoxia in the fruit fly Drosophila melanogaster

first_imgThe size of an organism is of fundamental importance in all biological processes. It dictates many of the critical interactions and physical factors that delimit the envelope within which an organism can grow. We investigated the effects of reduced oxygen on size and development in the fruit fly Drosophila melanogaster, and showed that limiting the oxygen in the environment limits both whole animal and cell size. When oxygen levels were reduced from 20% in nitrogen to 15%, 10% and 7.5%, there was a linear decrease in both male and female mass. Both cell size and cell number decreased in low oxygen, but changes in cell size accounted for a larger proportion of the overall change in fly size. Cell numbers decreased by a maximum of 11% between flies reared in 20% oxygen and those reared in 7.5% oxygen, whereas cell surface area decreased by 17%. Low oxygen levels increased development time and mortality, but reduced fecundity. Reducing the level of oxygen available significantly slowed development times, with flies reared in 10% oxygen emerging on average 1.5 days later than those in 20% oxygen. The effect of oxygen on size is reversible during embryonic and larval development up to the pupal stage, when final size is set.last_img read more

Exterus General Manager Earns Top Honors

first_imgExterus Technology for Business in Shelburne is pleased to announce that H. Wright Caswell was recently recognized by Xerox Corporation as one of the top sales agents in North America.Out of more than 3,200 sales agents and Xerox employees in the United States and Canada, Wright was one of just 18 chosen to compete in the Xerox North American Demorama competition in Orlando, Florida. After demonstrating the latest technology on one of the company’s newest, most advanced systems, Xerox executives placed him fourth best demo in North America. Wright was one of just three sales representatives chosen to compete two years in a row. Last year’s contest was held in Las Vegas, Nevada.Come meet Wright at the 1st Annual Exterus Fall Expo 2007 on November 27 at the Hilton Hotel in Burlington, Vermont! Visit www.exterusbusiness.com(link is external) for to register for the Expo or for more information on our products and services.last_img read more

East Patchogue Man DWI With Girl, Cops Say

first_imgSign up for our COVID-19 newsletter to stay up-to-date on the latest coronavirus news throughout New York An East Patchogue man has been arrested for driving drunk with his 15-year-old daughter in the vehicle early Sunday morning, Southampton Town Police said.Lawrence Clark was stopped for failing to maintain his lane while driving northbound on Ponquogue Avenue in Hampton Bays at 12:14 a.m.Officers found the 56-year-old man to be under the influence of alcohol, police said.Clark was charged with endangering the welfare of a child, driving while intoxicated as a felony following a prior conviction in the past decade and driving while intoxicated with a minor, a felony under Leandra’s Law.The girl was released to the custody of a family member and the vehicle was impounded.Clark will be arraigned at Southampton Town Justice Court.last_img read more

How Mourinho lured me into Inter Milan

first_img Loading… Eto’o insists the connection has never waned.He’ll always be a Nerazzurri. “That’s right, when you become an Inter fan once, you will die as an Inter fan,” he said. “There is no reason for this, it’s simply how it is, period.”Advertisement Inter Milan Treble, hero Samuel Eto’o, has revealed how Jose Mourinho lured him to play for Inter Milan. Eto’o revealed how Jose Mourinho signed him from Barcelona. “He called me speaking perfect French and said, ‘Eto’o, trust me. You’ll be very happy with the move to Inter, it will become like your home.’ He was right. read also:Eto’o backs Mbappe to take over from Messi as world’s best “Mourinho sent me a picture of a Nerazzurri shirt with the number 9 on it and wrote, it’s yours, it’s waiting for you.” FacebookTwitterWhatsAppEmail分享 Promoted Content6 Interesting Ways To Make Money With A Drone5 Of The World’s Most Unique Theme ParksTop 9 Scariest Haunted Castles In EuropeBirds Enjoy Living In A Gallery Space Created For ThemTop 10 Iconic Personalities On TV Now11 Most Immersive Game To Play On Your Table TopWho Earns More Than Ronaldo?7 Of The Most Incredible Antarctica Conspiracy Theories2020 Tattoo Trends: Here’s What You’ll See This Year10 Risky Jobs Some Women DoMeghan And Harry’s Royal Baby: Everything You Need To KnowThis Guy Photoshopped Himself Into Celeb Pics And It’s Hystericallast_img read more

Ireland team to face Japan named

first_imgIreland Head coach Joe Schmidt has named his side to take on Japan this Saturday morning.Simon Zebo is at full back with Conway and Earls on the wings while Ringrose and Scannell are in the centre.Paddy Jackson is partnered by Luke McGrath in the half backs. Cian Healy, Niall Scannell and John Ryan are the front row with Quinn Roux and Devin Toner in the second row.Rhys Ruddock Captains the side from the blindside while Dan Leavy is on the Openside and Jack Conan is number 8.Kieran Treadwell and Rory O’Loughlin are set to make their debuts off the bench. Photo: © worldrugby.orglast_img read more