Tag: 爱上海XW

H5N1 virus found near home of Indonesian victims

first_imgJul 27, 2005 (CIDRAP News) – Indonesian investigators found the H5N1 avian influenza virus in chicken droppings near the home of three people who died of the virus this month, according to a report published yesterday.Health Minister Siti Fadillah Supari said further tests were needed to determine if the victims, a man and his two young daughters who lived in a Jakarta suburb, became infected through contact with the droppings, according to the report by Agence France-Presse (AFP).”It’s suspected to be the cause of the infection, but it requires another stage of examination to determine this is the case,” Supari said. Officials have said they had no evidence that the victims had any exposure to sick poultry, but they lived a few miles from farms where poultry and pigs were found to be infected this year.H5 outbreak in JapanIn other developments, Japanese officials have reported another outbreak of avian flu on a poultry farm near where several outbreaks have been reported since late June, according to a Reuters story today.Some chickens on the farm tested positive for an H5 virus, and fuller identification of the virus was still awaited, a local official in Ibaraki prefecture, northeast of Tokyo, told Reuters. The previous outbreaks in the area were identified as involving an H5N2 virus, which is less virulent than H5N1 and has not been known to cause illness in humans.The latest outbreak is on a farm with 35,000 birds, about 4 miles from where the first recent outbreak surfaced in late June, the report said. Since then, authorities have destroyed chickens at seven neighboring farms, after they tested positive for antibodies to the virus.An avian flu outbreak reported in southwestern Siberia last week was tentatively identified as H5N2. Conclusive identification of the virus in the outbreak in the Novosibirsk region was still awaited, according to a Reuters report published yesterday.Gennady Onischenko, Russia’s top epidemiologist, said the outbreak was Russia’s first avian flu outbreak, Reuters reported. He said the disease had killed 1,135 birds.Reports from Thailand, PhilippinesIn a report to the World Organization for Animal Health (OIE) last week, Thailand said recent avian flu outbreaks had killed more than 16,000 birds and forced the destruction of more than 120,000.Outbreaks occurred in eight villages in Suphan Buri province, about 60 miles north of Bangkok, the report said. Initial reports on Jul 11 had cited five outbreaks in the area, ending a 3-month stretch with no poultry outbreaks in Thailand.All the cases occurred on farms or at other sites where traditional husbandry methods were used and biosecurity was minimal. The largest outbreak killed 14,880 birds and forced the culling of 107,120, the report said.The cases were detected during Thailand’s second nationwide active surveillance campaign, scheduled to run from Jul 1 to 31, officials told the OIE. Thailand has had 17 human cases of H5N1 infection, with 12 deaths, but none this year.Filipino officials told the OIE last week that testing in Australia had confirmed the previously reported finding of a low-pathogenic flu virus in ducks from one location, but found no virus in chickens. Authorities reported on Jul 8 that an H5 virus had been found in ducks on one farm north of Manila, marking the Philippines’ first avian flu outbreak in recent years.Tests at the Australian Animal Health Laboratory detected evidence of low-pathogenic H5 and H9 viruses in samples from ducks but not from chickens, the Filipino report said. Tests showed no sign of H5N1 viruses in any of the samples. Virus isolation tests using fertilized chicken eggs also were negative.Officials said they concluded that the Philippines is free of H5N1 and has no low-pathogenic flu in chickens. Further, officials said, “The Philippines has had previous LPAI [low pathogenic avian influenza] exposure in ducks, but the LPAI virus is no longer present and therefore we do not have active LPAI, even in ducks.”Authorities concluded that the original finding by a Filipino government lab of a flu virus in ducks was probably a false-positive, possibly because an inappropriate primer was used in the reverse-transcriptase polymerase chain reaction test, the report says.Hong Kong lab suspends researchIn Hong Kong, a laboratory that had been criticized by the Chinese government for its research on avian flu said it was suspending the research while seeking government permission for it, according to a Reuters report published yesterday.In late May, the Joint Influenza Research Centre published an article in Nature saying that infected wild birds in western China might have picked up the H5N1 virus from poultry farms in southern China. The center is operated by Hong Kong University and Shantou University.A day after the article was published, Jia Youling, head of the veterinary bureau in the Chinese Ministry of Agriculture, criticized the findings and said no avian flu had broken out in southern China this year, Reuters reported. Jia also said the joint laboratory had inadequate biosecurity and had not received government approval to conduct avian flu research.A few days later, the government issued new regulations restricting H5N1 research to three governments labs and requiring labs to obtain government permission before doing research on deadly pathogens, the story said.A statement by the joint research center said it complied fully with World Health Organization safety standards for work on avian flu viruses but was suspending its work on H5N1 while it applied for government authorization.See also:Thai report to the OIEftp://ftp.oie.int/AVIAN%20INFLUENZA/infos_san_archives/eng/2005/en_050722v18n29.pdfFilipino report to the OIEftp://ftp.oie.int/AVIAN%20INFLUENZA/infos_san_archives/eng/2005/en_050715v18n28.pdflast_img read more

Read More

‘Rosa Parks Human Rights Day’ to be considered

first_img AD Quality Auto 360p 720p 1080p Top articles1/5READ MOREPettersson scores another winner, Canucks beat KingsHutchinson said such a resolution would make Los Angeles the nation’s first city to declare a Rosa Parks Human Rights Day. The proposal has been endorsed by civil rights leader the Rev. Al Sharpton. 160Want local news?Sign up for the Localist and stay informed Something went wrong. Please try again.subscribeCongratulations! You’re all set! Black civil rights activists will call on the City Council today to declare Saturday “Rosa Parks Human Rights Day” to mark the 52nd anniversary of Parks’ refusal to move from her seat on a bus in Montgomery, Ala. Earl Ofari Hutchinson, president of the Los Angeles Urban Policy Roundtable, said Parks’ act was a turning point in the civil rights movement, and commemorating it would send a message that efforts must continue to fight bigotry and intolerance. “Today the forces of intolerance are alive and well in America and Los Angeles,” Hutchinson said. Hutchinson cited “the spate of hanging nooses, the rise in hate crimes nationally, black and Latino gang hate violence in L.A.” as the basis for his call. last_img read more

Read More

Lorch strikes late to stun hosts Egypt

first_imgSouth Africa will now take on Nigeria in the quarter finals. (PHOTO/Agencies)AFCON 2019Egypt 0-1 South Africa Cairo International Stadium, CairoSunday, 06-07-2019Thembinkosi Lorch late strike was enough to send South Africa into the last eight as they dumped out Mohamed Salah’s Egypt in their home Africa cup of Nations.Bafana Bafana prevailed 1-0 to stun the Egyptians at Cairo International Stadium on Saturday evening.The South Africans showed plenty of attacking intent in the first period and had the better chances of the half.Percy Tau and Kamohelo Mokotjo were both denied by Egyptian custodian Mohamed El Shenawy.The Pharaohs’ best chance of in the first half fell to Mahmoud Ahmed Ibrahim Hassan ‘Trezeguet’ in the 24th minute when he was set up by Salah but his effort was tame and straight to South Africa goalkeeper Ronwen Williams.At halftime, it was goalless as the home side and record Africa Cup of Nations holders were frustrated.In the 57th minute, Trezeguet had another decent chance when Salah picked him with a perfect ball but his shot went straight to Williams.With only five minutes to normal time, Lebo Mothiba played a square ball to Lorch on the counter and the midfielder fired past El Shenawy to silence the fully packed Cairo International stadium.South Africa will take on Nigeria on Wednesday 10th July in the quarterfinals of the competition.The other game on Saturday-Nigeria 3-2 CameroonComments Tags: AFCON 2019EgyptKamohelo MokotjoMohammad SalahPercy TauSouth AfricaThembinkosi Lorchtoplast_img read more

Read More

VR optics could help old folks keep the world in focus

first_imgThe complex optics involved with putting a screen an inch away from the eye in VR headsets could make for smartglasses that correct for vision problems. These prototype “autofocals” from Stanford researchers use depth sensing and gaze tracking to bring the world into focus when someone lacks the ability to do it on their own.I talked with lead researcher Nitish Padmanaban at SIGGRAPH in Vancouver, where he and the others on his team were showing off the latest version of the system. It’s meant, he explained, to be a better solution to the problem of presbyopia, which is basically when your eyes refuse to focus on close-up objects. It happens to millions of people as they age, even people with otherwise excellent vision.There are, of course, bifocals and progressive lenses that bend light in such a way as to bring such objects into focus — purely optical solutions, and cheap as well, but inflexible, and they only provide a small “viewport” through which to view the world. And there are adjustable-lens glasses as well, but must be adjusted slowly and manually with a dial on the side. What if you could make the whole lens change shape automatically, depending on the user’s need, in real time?That’s what Padmanaban and colleagues Robert Konrad and Gordon Wetzstein are working on, and although the current prototype is obviously far too bulky and limited for actual deployment, the concept seems totally sound.Padmanaban previously worked in VR, and mentioned what’s called the convergence-accommodation problem. Basically, the way that we see changes in real life when we move and refocus our eyes from far to near doesn’t happen properly (if at all) in VR, and that can produce pain and nausea. Having lenses that automatically adjust based on where you’re looking would be useful there — and indeed some VR developers were showing off just that only 10 feet away. But it could also apply to people who are unable to focus on nearby objects in the real world, Padmanaban thought.This is an old prototype, but you get the idea.It works like this. A depth sensor on the glasses collects a basic view of the scene in front of the person: a newspaper is 14 inches away, a table three feet away, the rest of the room considerably more. Then an eye-tracking system checks where the user is currently looking and cross-references that with the depth map.Having been equipped with the specifics of the user’s vision problem, for instance that they have trouble focusing on objects closer than 20 inches away, the apparatus can then make an intelligent decision as to whether and how to adjust the lenses of the glasses.In the case above, if the user was looking at the table or the rest of the room, the glasses will assume whatever normal correction the person requires to see — perhaps none. But if they change their gaze to focus on the paper, the glasses immediately adjust the lenses (perhaps independently per eye) to bring that object into focus in a way that doesn’t strain the person’s eyes.The whole process of checking the gaze, depth of the selected object and adjustment of the lenses takes a total of about 150 milliseconds. That’s long enough that the user might notice it happens, but the whole process of redirecting and refocusing one’s gaze takes perhaps three or four times that long — so the changes in the device will be complete by the time the user’s eyes would normally be at rest again.“Even with an early prototype, the Autofocals are comparable to and sometimes better than traditional correction,” reads a short summary of the research published for SIGGRAPH. “Furthermore, the ‘natural’ operation of the Autofocals makes them usable on first wear.”The team is currently conducting tests to measure more quantitatively the improvements derived from this system, and test for any possible ill effects, glitches or other complaints. They’re a long way from commercialization, but Padmanaban suggested that some manufacturers are already looking into this type of method and despite its early stage, it’s highly promising. We can expect to hear more from them when the full paper is published.last_img read more

Read More