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#1 24-05-2018 03:56:33

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Date d'inscription: 26-04-2018
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CANBERRA Nike Air Max 97 Nederland , Aug. 9 (Xinhua) -- Two separate studies undertaken by scientists in Australian have come up with new ways to deal with the eradication of pests such as feral pigs, rabbits and mice, which cost the local agricultural economy more than one billion Australian dollars (800 million U.S. dollars) every year.


Researchers from the Commonwealth Scientific and Industrial Research Organization (CSIRO) has developed a technology-based system whereby pests get scared away from crucial agriculture, while in a separate development, researchers from the University of Adelaide attacked the problem using complex genetic development.


CSIRO scientist Dr Ash Tews said that the trials of autonomous Vertebrate Pest Detect-and-Deter (VPDaD) technology are underway Nike Air VaporMax Roze Nederland , which uses a series of sensor-driven lights and sounds to prevent pests from causing damage.


"One of the interesting issues with existing deterrent technologies is that, not only do animals become de-sensitized to them, but smarter ones can even learn to use the deterrents as an indication of a food source, which is the opposite of their purpose," Tews was quoted in a CSIRO press release published on Wednesday.


The autonomous technology CSIRO scientists developed allows the system to recognize animal behaviours in response to deterrents and modify the deterrent strategy until the desired effect is achieved.


"This allows the system to be more effective over long periods of time such as the key threat times during crop growing."


Tews said while the technology was only in a testing phase Nike Air VaporMax Wit Nederland , ultimately the CSIRO wants to "scale-up the technology and roll it out across Australia".


And while the CSIRO has been busy implementing technology in the fight against invasive and damaging pest species, scientists at the University of Adelaide in South Australia believe they may soon be able to eradicate pests by implanting them with "infertility genes".


According to the university's mathematical ecologist, Dr Thomas Prowse, researchers could use a process called gene drive to cause an inheritance of a gene which would render pests, such as mice Nike Air VaporMax Grijs Nederland , infertile.


In a press release also published on Wednesday, Prowse said that if 100 "infected" mice were released on, for example, an island of 50,000 mice Nike Air VaporMax Rood Nederland , they would be eradicated within five years.


"If viable, this technology offers a humane, targeted solution for invasive species control," Prowse said.


"This could complement or even replace traditional control methods such as culling, trapping and poison baiting Nike Air VaporMax Blauw Nederland , as well as more advanced biocontrols such as rabbit haemorrhagic disease."


The research indicates that controlling invasive pest populations using gene drives may be feasible, but certainly the hype around this new technology is still some way ahead of the science.


Prowse's colleague and molecular geneticist at the university, Professor Paul Thomas said that new "CRISPRCas9 gene editing technology" was responsible for the breakthrough.


"(This new) gene editing technology enables the gene drive to replicate itself during egg and sperm production this ensures that it is passed on to the next generation and ultimately results in spread through the entire population," Thomas said in the press release.


"Our results indicate that placing the gene drive in a fertility or viability gene will eventually cause the population to crash."


He said there was still lab work to be conducted to ensure the process of gene driving works, implementation of such a plan was still some time away.


"The next necessary step will be development of gene drives in laboratory mice under secure conditions to enable improved modelling of this potential for pest eradication Nike Air VaporMax Heren Nederland ," he said.


"This will provide the critical data needed to debate the important questions that remain around biosecurity, regulation and ethics."


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LAGOS, June 11 (Xinhua) -- Nigeria has concluded plans to invite 35 players to camp on June 15 Nike Air VaporMax Zwart Nederland , ahead of the forthcoming 11th World Junior Softball Championship scheduled to hold in Oklahoma, U.S.


The players would commence a 40-day program in southern city of Port Harcourt and other locations in the country ahead of the competition, Kehinde Laniyan, the scribe of Nigeria Baseball and Softball Association (NBSA) told reporters in Lagos on Thursday.


Laniyan said the players were selected from tryouts that were held in southwest city of Ibadan and Port Harcourt in May.


The Nigerian official said 20 players would be eventually selected based on merit to represent the country at the championship.


The scribe appealed to corporate organizations and philanthropists to support the team' s preparations for the event.


Nigeria is in pool A alongside Ecuador, China Nike Air VaporMax Dames Nederland , Britain and Japan.


No fewer than 18 teams will participate at the World Baseball Softball Confederation (WBSC) sanctioned event holding from Aug. 9 to Aug. 15 in Oklahoma.

" Clockwise from top: A tribute is left at Robin Williams' star on the Hollywood Walk of Fame on Monday; in 1998 after winning Best Performance by an Actor in a Supporting Role for his part in Good Will Hunting; reacting to a question at the Consumer Electronics Show in Las Vegas in 2006; on the set of ABC's Mork and Mindy in 1978. Photos by AFP AP Reuters

The 63-year-old is thought to have committed suicide.


On Sina Weibo alone, 30 million comments had been made on one feed by Tuesd.

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