Wildlife Photographer of the Year: How many crocodiles can you see?
Gharial crocodiles may number less than 1,000 individuals in the wild - but there is always hope.
https://medicalmask.com.ua/face-masks/ mask surgical face medical.
Автоматическая линия для производства медицинских масок
https://sukhomlin.com/avtomaticheskaya-liniya-dlya-proizvodstva-meditsinskih-masok/
https://maskmakingmachine.com.ua
Far-right Patriot Prayer group says fatal shooting victim in Portland was a supporter
"I have regrets that Jay was shot," group founder Joey Gibson said of Saturday night's deadly confrontation after a pro-Trump caravan entered the city.
Алюминий в чушках
Первичный алюминий А0 (технической чистоты) поставляется по ГОСТ 11069-2001.
Содержание алюминия не менее 99,70%.
Содержание других веществ:
кремний 0,15
железо 0,16
медь 0,01
марганец 0,03
магний 0,02
цинк 0,04
галлий 0,03
титан 0,01
прочие примеси не более 0,03 каждой в отдельности.
Слиток отмечается двумя черными вертикальными полосами.
Алюминий А0 поставляется чушками. Вес одной чушки: 14-16 килограмм. Чушки упаковываются в пачки, вес каждой пачки от 800 до 1000 кг. Купить алюминий А0 в чушках вы можете в компании "Алюминий" алюминиевой производство чушки. Минимальная партия поставки алюминия А0 от 20 тонн. По договоренности возможна поставка меньшего тоннажа, но не менее одной пачки слитков. Т. е. пачки не распаковываются.
Trump White House Warns Colleges: Don't Send Your COVID-Infected Students Home!
Top White House officials rang the alarm bell during a call with the nation's governors on Monday, pleading with them to advise college presidents in their states to keep COVID-infected students on campus or risk another major outbreak. "We know that what happened across the South [in June] was primarily driven by 18-to-25 year olds, across the South, with asymptomatic spread," said Dr. Deborah Birx, the Coronavirus Response Coordinator for the White House Coronavirus Task Force. "Sending these individuals back home in their asymptomatic state to spread the virus in their home town or among their vulnerable households could really recreate what we experienced over the June time frame in the South. So I think every university president should have a plan for not only testing but caring for their students that need to isolate."The comments represent one of the most explicit acknowledgments to date that the White House's aggressive push to bring students back to campus this fall has created serious risks for increased COVID transmission. It also underscores just how fragile the current situation is at college campuses across the country. Emails Show Chaos and Confusion at Ole Miss Over Coronavirus ExposureAccording to a New York Times tracker of COVID-19 at American colleges and universities, some 26,000 cases have emerged at over 750 institutions since the novel coronavirus hit the United States early this year. At the University of Alabama system alone, over 1,300 cases have been reported, according to the school's own coronavirus case tracker.Those spikes in infections have put college and university officials in a difficult position over how to manage community spread on their campuses. On Monday, The Daily Beast reported that students and professors at the University of Mississippi—a state where GOP Gov. Tate Reeves explicitly cited saving college football to justify a mask mandate—felt the administration was pressuring exposed (if not infected) students to return home to their families. Transparency concerns about outbreaks, and the prospect of students bringing coronavirus back to their older, possibly immunocompromised relatives, have also followed outbreaks at other major southern colleges like Alabama. The University of North Carolina at Chapel Hill, meanwhile, shut down in-person instruction for undergrads just one week into the semester last month, and at least some students were reportedly set to head home without being tested for COVID-19. The University of Notre Dame, in Indiana, and Michigan State University also quickly pivoted to online learning last month.Despite these cases, the White House has been adamant that schools not only open their doors to on-campus learning this fall but that fall sports—specifically football—proceed as usual. Justifying this stance, top administration officials have downplayed the severity of transmission and infection among younger populations. President Donald Trump himself has insisted—despite inconclusive evidence, at best, to support his claim—that healthy college athletes are "not going to have a problem" with the disease. In fact, powerhouse college football programs like Texas Tech and Oklahoma have reported recent outbreaks among their active players.University of Alabama to Profs: Don't Tell Students About COVID-Infected ClassmatesSpeaking to governors on the call Monday, Vice President Mike Pence echoed Birx's admonition that infected students remain isolated on campus for fear that asymptomatic transmission could impact wider populations. "In general, we want to encourage, even when you have test positivity on campuses, we want to encourage universities to have students remain on or near campus and minimize the potential exposure to the larger community," said Pence. "We really believe—and I spoke to a university president just the other day—in suspending classes for a few weeks, have people study in their rooms, and... that kind of isolation."We believe, let's have the testing, let's have the mitigation efforts, good practices in place," Pence added. "But we really believe that remaining on or near campus is the best course possible for the overall health and well-being [of the community]."Read more at The Daily Beast.Got a tip? Send it to The Daily Beast hereGet our top stories in your inbox every day. Sign up now!Daily Beast Membership: Beast Inside goes deeper on the stories that matter to you. Learn more.
магазин Алюминий предлагает: уголок алюминиевый 30х15х2 https://goo.gl/maps/dQtFQEon34D2
Will the new 15-minute COVID-19 test solve US testing problems?
On Aug. 26, the Food and Drug Administration granted an Emergency Use Authorization to a new rapid antigen test for COVID-19 called the BinaxNOW test.I study public health policy to combat infectious disease epidemics. Testing is one of the most powerful tools available to fight the spread of COVID-19. The new test is inexpensive, rapid and easy to use. It will massively scale up access to testing, but hurdles remain in achieving widespread, frequent COVID-19 testing. What type of test is BinaxNOW?The credit-card-sized test is an antigen test that detects a specific viral protein from SARS-CoV-2. It costs US$5 and doesn't require a lab or a machine for processing. Performing the test is simple. A health care worker or technician would use a swab to collect a sample from less than 1 inch inside the nostril. They would then combine the sample with a few drops of chemicals inside the test card. Within 15 minutes, the test strip would show a positive or negative result. The test is also paired with an app that produces a digital code that can be scanned to show proof of a recent negative COVID-19 test. What does the Emergency Use Authorization allow for?The BinaxNOW test is currently only authorized for patients who have had COVID-19 symptoms for seven days or less, which is when virus levels in the body are likely to be high. It must be prescribed by a physician and performed by a trained technician or other health care worker. The PCR test for COVID-19 is currently widely used and considered the gold standard, but requires patient samples to be sent to a lab and can take days to provide results. The new antigen test is designed to be a cheap and quick alternative to PCR testing for diagnostic purposes in a medical setting. It would add critical capacity to an overstretched testing system.The emergency use authorization provides preliminary authorization for doctors to prescribe the antigen test while the full FDA approval process is ongoing. The authorization could be revoked if the test is not as accurate or reliable as expected.[Get the best of The Conversation, every weekend. Sign up for our weekly newsletter.] How accurate is this test?Abbott, the health technology company that produces the test, reports that when patients had symptoms the test was in agreement with PCR testing for 97.1% for COVID-19 positive cases and 98.5% for COVID-19 negative cases. This is high enough for diagnostic settings where accuracy is critical. However, the true accuracy could be lower because the performance testing group was only 102 people and the accuracy hasn't been validated by the FDA as part of the full approval process. There will inevitably be some false negatives and false positives with the BinaxNOW test since accuracy isn't 100%, but the FDA will monitor the data to make sure the test meets the reported accuracy. Can this test be used for widespread screening?The BinaxNOW test is cheap, rapid, able to be mass-produced and easy to use outside a lab. This makes it a promising candidate for widespread screening. However, the test is currently only authorized for people with COVID-19 symptoms.This is an obstacle because an estimated 40% of all COVID-19 cases are asymptomatic and these people likely don't know that they're contagious. To maximize the effectiveness of any COVID-19 screening program, it is important to test people whether they have symptoms or not.Health care providers are able to prescribe the BinaxNOW test for asymptomatic patients for off-label use, but health officials don't yet know how accurate the test is when performed on asymptomatic people. Is this test a game-changer?The massive expansion of testing access made possible by the BinaxNOW test will almost surely outweigh the downsides of a small number of inaccurate results. Abbott plans to manufacture 50 million tests per month starting in October. This will quickly exceed the 76 million COVID-19 tests the U.S. has performed over the last six months.Widespread, frequent testing is effective at slowing the spread of the coronavirus. The new testing capacity made possible by the authorization of this rapid antigen test represents a major advance in bringing the pandemic under control.This article is republished from The Conversation, a nonprofit news site dedicated to sharing ideas from academic experts.Read more: * Antigen tests for COVID-19 are fast and easy – and could solve the coronavirus testing problem despite being somewhat inaccurate * Rapid screening tests that prioritize speed over accuracy could be key to ending the coronavirus pandemicZoë McLaren does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.
Алюминиевая гранула
Гранула алюминиевая, фото из Instagram. Хэштеги: #производство, #алюминий, #гранула. Аккаунт: @alyuminiy_com
With peak of hurricane season almost here, forecasters watch four areas for tropical development
The most active day of the hurricane season is around Sept. 10. As the season's peak nears, forecasters are watching four areas for development.
Уголок равнополочный является сегодня довольно популярным материалом. С ним взаимодействуют во многих отраслях. Это обусловлено отменными эксплуатационными данными изделий: он прочный и в то же время легкий. Поэтому их все чаще можно увидеть там, где невозможно применение его аналога из стали.
Помимо перечисленных характеристик, равнополочные уголки отличаются долговечностью, переносимостью воздействия как высоких, так и низких температур. Алюминиевый равнополочный уголок обладает высокой устойчивостью к коррозии, ультрафиолетовых лучей, химических жидкостей, кислот и влаги. При взаимодействии с воздухом на его поверхности возникает окисная пленка, которая играет роль барьера и увеличивает период его эксплуатации.
Также на уголки равнополочные может быть нанесено покрытие одним из методов:
- распыление полимерной порошковой краски;
- декорирование и ламинирование;
- анодирование (путем создания на поверхности алюминия оксидного слоя).
Разные составы цветовых решений позволяют вписать их в производственный цикл для производства шкафов-купе, гардеробных комнат и прочей домашней мебели. Вышеприведенные нюансы помогут оценить их особенности, анодированные равнополочные уголки пользуются популярностью у многих потребителей - организаций и частных лиц.
Еще одно достоинство заключается в том, что они без каких либо проблем поддаются практически любой механической обработке. Его можно сверлить, шлифовать и придавать ему разлиную форму. Для их скрепления используются саморезы.
Как делаются уголки равнополочные
Производство их, как правило, осуществляется экструзией или гибкой. В зависимости от технологии выделяют вот два типа:
- прессованные;
- гнутые.
При этом они могут поступать в продажу в исходном состоянии или подвергнутые одному из нескольких способов термообработки. Экструдируют их на мощных гидравлических прессах через формообразующий элемент - фильеру, или так называемую матрицу. Гнут на гибочных станках. Стоить отметить, что им свойственно иметь более десятков тысяч размеров. Наиболее маленьким считается размер 10х10х1 мм, его противоположность, габарит 200 мм шириной и 200 мм высотой.
И так, подведем итоги: сплошной профиль, гораздо надежнее поливинилхлорида и дерева, так как не боится температурных скачков, алюминию не страшны жара и морозы, он устойчив к негативным атмосферным проявлениям. Они, профили, не воспламеняются и не поддерживают процесс горения, не продуцируют токсинов даже в случае нагревании, что дает возможность использовать их в жилых помещениях. Они не выделяет в атмосферу ядовитых веществ, абсолютно безвредны для человека. И монтировать их - одно удовольствие, скажем так, достаточно просто. Кроме того, они просты в обслуживании. И самое главное, они отличаются доступной ценой.
Где купить алюминиевый равнополочный уголок оптом и в розницу?
В магазинах расположенных по адресам: магазин Алюминий Бережанская 9 Киев, магазин Алюминий Кокчетавская 12 Харьков или в интернет магазине https://kzask.ua/ugolokrav/, вы также можете купить равнополочные алюминиевые уголки по цене производителя.
5 things to know about Japan's World War II surrender
Wednesday is the anniversary of the formal Sept. 2, 1945, surrender of Japan to the United States, when documents were signed officially ending years of bloody fighting in a ceremony aboard the USS Missouri in Tokyo Bay. A: An abbreviation for Victory over Japan Day, marked by the United States and its allies in the war and by the Asian victims of Japan who won their liberation from years of atrocities and oppression. Others, including the United States, mark the day on Sept. 2, while the Philippines, China and Russia observe Sept. 3.
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