From lunch counters to bus boycotts, the African American fight for integration and equality touched every aspect of life. What you may not be familiar […]

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A new type of X-ray LLL interferometer, a `hard' interferometer, which has both a base and a `ceiling', is tested for experimental investigations. The tested interferometer has no preliminary uncontrollable moiré and can be used for object and deformation investigations.

The federal government should not rely on polygraph examinations for screening prospective or current employees to identify spies or other national-security risks because the test results are too inaccurate when used this way.

A new rapid expert consultation from a standing committee of the National Academies of Sciences, Engineering, and Medicine.

Researchers are scrambling to find effective treatments for COVID-19, which has infected more than 1 million people around the word.

When it comes to COVID-19 testing, questions remain about which of the tests available are reliable, how much testing is needed, and how to ensure access to testing. The latest COVID-19 Conversations webinar explored the challenges ahead.

Exide begins to remove lead-polluted soil on Monday morning at a house on the 1200 block of La Puerta Street in Boyle Heights.; Credit: Maya Sugarman/KPCC

All five members of the Los Angeles County Board of Supervisors have signed a letter imploring California Gov. Jerry Brown to intervene in the state’s handling of contamination around the Exide Technologies plant in Vernon.

The letter criticizing the state’s “piecemeal approach to an urgent environmental hazard” comes as workers paid for by Exide are removing lead-contaminated topsoil from two homes near the intersection of Olympic and Indiana avenues in L.A. 

Signed Tuesday, the letter asks for “guaranteed state funding to immediately begin testing” at 37 more homes also sampled, but to less specific degrees, during November 2013. In the words of the board, “further testing and remediation of the other 37 homes has not been confirmed and may not begin until at least October 2014 because Exide has not yet agreed to comply with DTSC directives issued last March.”

The supervisors also say the state has “reneged” on its commitments to test for lead inside the homes as well as outside.

The Department of Toxic Substances Control says that the two homes workers are at this week will be cleaned inside and out — even without indoor testing.  The DTSC’s Rizgar Ghazi said Monday that crews will use HEPA filters, vacuums and shampooing equipment on “basically any flat surface” inside the two residences.

Read the L.A. Board of Supervisors’ letter to Gov. Brown here:

http://www.scribd.com/doc/236655733/LA-County-Supervisors-Letter-to-Gov-Brown-8-12-14

This content is from Southern California Public Radio. View the original story at SCPR.org.

Phlebotomists process specimens of people getting tested for coronavirus antibodies in Spring Valley. ; Credit: Yana Paskova/Getty Images

As of Tuesday afternoon, L.A. County has at least 1,314 deaths and 27,836 confirmed cases of coronavirus.

New confirmed infections per day in the U.S. exceed 20,000, and deaths per day are well over 1,000,000 according to figures from Johns Hopkins University. And public health officials warn that the failure to flatten the curve and drive down the infection rate in places could lead to many more deaths — perhaps tens of thousands — as people are allowed to venture out and businesses reopen. From the marbled halls of Italy to the wheat fields of Kansas, health authorities are increasingly warning that the question isn’t whether a second wave of coronavirus infections and deaths will hit, but when — and how badly. President Donald Trump said his COVID-19 task force would keep working but focus more on rebooting the economy. According to the Orange County Register, more OC beaches received approval to open with limited hours.

Today on AirTalk, we get the latest on COVID-19. Do you have questions for our infectious disease specialist? Join the conversation by calling 866-893-5722. 

With files from LAist and the Associated Press 

Guest: 

Peter Chin-Hong, M.D., infectious disease specialist and professor of medicine at the UCSF Medical Center; he tweets @PCH_SF

This content is from Southern California Public Radio. View the original story at SCPR.org.

; Credit: Alyson Hurt/NPR

To safely phase out social distancing measures, the U.S. needs more diagnostic testing for the coronavirus, experts say. But how much more?

The Trump administration said on April 27 the U.S. will soon have enough capacity to conduct double the current amount of testing for active infections. The country has done nearly 248,000 tests daily on average in the last seven days, according to the nonprofit Covid Tracking Project. Doubling that would mean doing around 496,000 a day.

Will that be enough? What benchmark should states try to hit?

One prominent research group, Harvard's Global Health Institute, proposes that the U.S. should be doing more than 900,000 tests per day as a country. This projection, released Thursday, is a big jump from its earlier projection of testing need, which was between 500,000 and 600,000 daily.

Harvard's testing estimate increased, says Ashish Jha, director of the Global Health Institute, because the latest modeling shows that the outbreak in the U.S. is worse than projected earlier.

"Just in the last few weeks, all of the models have converged on many more people getting infected and many more people [dying]," he says.

But each state's specific need for testing varies depending on the size of its outbreak, explains Jha. The bigger the outbreak, the more testing is needed.

Thursday Jha's group at Harvard published a simulation that estimates the amount of testing needed in each state by May 15. In the graphic below, we compare these estimates with the average numbers of daily tests states are currently doing. (Jump to graphic)

Two ways to assess whether testing is adequate

To make their state-by-state estimates, the Harvard Global Health Institute group started from a model of future case counts. They calculated how much testing would be needed for a state to test all infected people and any close contacts they may have exposed the virus. (The simulation estimates testing 10 contacts on average.)

"Testing is outbreak control 101, because what testing lets you do is figure out who's infected and who's not," Jha says. "And that lets you separate out the infected people from the non infected people and bring the disease under control."

This approach is how communities can prevent outbreaks from flaring up. First, test all symptomatic people, then reach out to their close contacts and test them, and finally ask those who are infected or exposed to isolate themselves.

Our chart also shows another testing benchmark for each state: the ratio of tests conducted that come back positive. Communities that see around 10% or fewer positives among their test results are probably testing enough, the World Health Organization advises. If the rate is higher, they're likely missing a lot of active infections.

What is apparent from the data we present below is that many states are far from both the Harvard estimates and the 10% positive benchmark.

Just nine states are near or have exceeded the testing minimums estimated by Harvard; they are mostly larger, less populous states: Alaska, Hawaii, Montana, North Dakota, Oregon, Tennessee, Utah, West Virginia and Wyoming.

Several states with large outbreaks — New York, Massachusetts and Connecticut among others — are very far from the minimum testing target. Some states that are already relaxing their social-distancing restrictions, such as Georgia, Texas and Colorado, are far from the target too.

Jha offers several caveats about his group's estimates.

Estimates are directional not literal

Researchers at the Global Health Initiative at Harvard considered three different models of the U.S. coronavirus outbreak as a starting point for their testing estimates. They found that while there was significant variation in the projections of outbreak sizes, all the models tend to point in the same direction, i.e. if one model showed that a state needed significantly more testing, the others generally did too.

The model they used to create these estimates is the Youyang Gu COVID-19 Forecasts, which they say has tracked closely with what's actually happened on the ground. Still the researchers caution, these numbers are not meant to be taken literally but as a guide.

If social distancing is relaxed, testing needs may grow

The Harvard testing estimates are built on a model that assumes that states continue social distancing through May 15. And about half of states have already started lifting some of those.

Jha says, that without the right measures in place to contain spread, easing up could quickly lead to new cases.

"The moment you relax, the number of cases will start climbing. And therefore, the number of tests you need to keep your society, your state from having large outbreaks will also start climbing," warns Jha.

Testing alone is not enough

A community can't base the decision that it's safe to open up on testing data alone. States should also see a consistent decline in the number of cases, of two weeks at least, according to White House guidance. If their cases are instead increasing, they should assume the number of tests they need will increase too.

And Jha warns, testing is step one, but it won't contain an outbreak by itself. It needs to be part of "a much broader set of strategies and plans the states need to have in place" when they begin to reopen.

In fact, his group's model is built on the assumption that states are doing contact tracing and have plans to support isolation for infected or exposed people.

"I don't want anybody to just look at the number and say, we meet it and we're good to go," he says. "What this really is, is testing capacity in the context of having a really effective workforce of contact tracers."

The targets are floors not goals

States that have reached the estimated target should think of that as a starting point.

"We've always built these as the floor, the bare minimum," Jha says. More testing would be even better, allowing states to more rapidly tamp down case surges.

In fact, other experts have proposed the U.S. do even more testing. Paul Romer, a professor of economics at New York University proposed in a recent white paper that if the U.S. tested every resident, every two weeks, isolating those who test positive, it could stop the pandemic in its tracks.

Jha warns that without sufficient testing, and the infrastructure in place to trace and isolate contacts, there's a real risk that states — even those with few cases now — will see new large outbreaks. "I think what people have to remember is that the virus isn't gone. The disease isn't gone. And it's going to be with us for a while," he says.

Daniel Wood contributed to this report.

This content is from Southern California Public Radio. View the original story at SCPR.org.

Wide receiver Wes Welker #83 of the Denver Broncos tries to avoid the tackle of free safety Earl Thomas #29 of the Seattle Seahawks during Super Bowl XLVIII at MetLife Stadium in this file photo taken February 2, 2014 in East Rutherford, New Jersey. Under a new drug policy agreed to by the NFL and the players union, Welker and two other suspended players will be allowed to return to the field.; Credit: Jeff Gross/Getty Images

The NFL said Wednesday that its new performance-enhancing drug policy will allow the Broncos' Wes Welker and two other suspended players to return to the field this week.

The deal with the players association also adds human growth hormone testing, ending several years of wrangling between the league and the union.

Welker, Dallas Cowboys defensive back Orlando Scandrick and St. Louis Rams wide receiver Stedman Bailey had been suspended for four games.

Under the new rules, players who test positive for banned stimulants in the offseason will no longer be suspended. Instead, they will be referred to the substance abuse program.

The league and union are also nearing an agreement on changes to the substance abuse policy. That could reduce Cleveland Browns receiver Josh Gordon's season-long ban.

Testing for HGH was originally agreed upon in 2011, but the players had balked at the science in the testing and the appeals process for positive tests. Under the new deal, appeals of positive tests in the PED program will be heard by third-party arbitrators jointly selected by the NFL and union. Appeals will be processed more expeditiously under altered procedures

Testing should begin by the end of the month.

The new rules also change the length of suspensions. Previously, all first-time violations of the performance-enhancing drug policy resulted in at least a four-game suspension.

Now, use of a diuretic or masking agent will result in a two-game suspension. The punishment for steroids, in-season use of stimulants, HGH or other banned substances is four games. Evidence of an attempt to manipulate a test is a six-game suspension.

A second violation will result in a 10-game ban, up from a minimum of eight games. A third violation is at least a two-year suspension. Before, the ban was at least a year.

Scientists have tested the behaviour of biodegradable plastics in managed composting and anaerobic conditions, as well as under simulated environmental conditions, such as in seawater or soil. This study found that blending different types of biodegradable plastics may open up new opportunities in relation to their end-of-life treatment — notably the potential to make one of the world’s best-selling biodegradable plastics, polyactic acid (PLA), home-compostable by blending it with another polymer (polycaprolactone — PCL). However, the researchers were also concerned that most materials tested could still cause plastic pollution as they failed to biodegrade sufficiently — and, in some cases, not at all, in particular, in soil and the marine environment.

Greenpeace ship blocked en route to protesting new oil find off the coast of Greenland.

Actress Daryl Hannah and landowner Eleanor Fairchild were taken into custody after standing in the way of heavy equipment being used to build the southern porti

Indoor air pollutants are all around us, from radon and rodents to VOCs and NO2.

Movie star Darryl Hannah and NASA scientist Dr. James Hansen were arrested along with dozens of others after blocking access to a coal facility.

When we heard about Food52's Holiday Recipes and Party Planning Guide ($3.99 for iPad and iPhone), we thought this app from New York Times writers Amanda Hesser

Testing for food safety brings to light many frightening food infractions; even an innocent-seeming pizza can be suspect.

The One Health Company seeks to find disease cures without killing animals.

Residents of a trailer park in Wyoming are fine with drinking bottled water, but the EPA says the park's owner should be doing more testing.

Emedivet is helping farmers keep track of their cows' health an implantable device, but the ultimate goal is to get the devices into humans.

Dozens of countries have banned cosmetics tested on animals, and now more U.S. states are doing the same.

DNA paternity testing in its purest form is the application of DNA technology to provide information about the parentage of an individual (usually a child). The mother of the child is rarely disputed, and most of the time DNA testing is requested to inform the likely father of a child.

Are parents using home drug test kits going too far or are they simply being responsible?

An app designed for coaches to gather specific soccer fitness testing data, fitcore5 will help coaches and athletes gain a better understanding of their current fitness levels and establish clearer goals for improvement.

Genomes - an organism's complete set of DNA, including all of its genes - of any two people are more than 99 per cent the same. Reference laboratory to be created by Pure Health in Middle East.

The marijuana presence is still less than alcohol at 0.08 BAC (which is at 27%), however, marijuana presence is up 41% in last 5 years. This is based on the 2017 NHTSA data of 17,326 drivers in fatal crashes with valid drug test performed.

Mandatory testing of fatal crash drivers a national priority. "Probable Cause" used as an excuse for not testing must no longer be allowed. Join our NATIONAL COALITION! madtests.com. Mandatory Alcohol/Drug testing of all fatal crash driver.

As soon as she saw the community spread of the COVID-19 virus in Washington State, Bedford Research Foundation's ("BRF") Clinical Laboratory Director Dr. Ann Kiessling sprang into action.

As part of its mission to support treatment of currently incurable diseases in communities, the Bedford Research Foundation clinical laboratory, located in Massachusetts, will begin offering a highly sensitive highly specific test for SARS-2.

Carl Nicoleau, MD, Ph.D. of Jackson Heights, NY has announced immediate, isolated testing for patients showing signs of the new, life-threatening disease on everyone's mind. The same medical facility will also be offering telemedicine appointments.

CoolTone is FDA-cleared for tightening the abdomen, thighs, and buttocks through magnetic muscle stimulation

With rising Medicare premiums and costs, financial planners must understand the risks associated with Medicare means testing

Going Against Federal Testing Guidelines in California's SB647(Mitchell) Could Cause Unsafe Jewelry to be Sold

Infidelity Historically Spikes on Valentine Day and Divorce The Day After.

Event will also outline practical, low cost water quality testing and treatment solutions that assist project managers and implementers in the field

Skin is the foundation of beauty. Intrinsic beauty is rooted in youthful skin. epiAGE, Inc. is launching a revolutionary direct-to-customer facial skin age service that can tell the intrinsic DNA age at specific spots on the facial skin.

This post will cover how testing is done for the coronavirus, why it's important in battling the pandemic, and how deep learning tools for medical imaging can help us improve the quality of COVID-19 testing.

The book Trustworthy Online Controlled Experiments: A Practical Guide to A/B Testing by Ron Kohavi (Microsoft, Airbnb), Diane Tang (Google) and Ya Xu (LinkedIn) is available for purchase, with the authors proceeds from the book being donated to charity.

Margaret Parker, MD, MCCM, speaks with Claudia Delgado-Corcoran, MD, MPH

Coronavirus testing: Over 15 lakhs tested till now for COVID-19, informs Harsh Vardhan

Texas A&M is the first US institution in the clinical trial to have federal clearance for testing on humans. Researchers hope to demonstrate that Bacillus Calmette-Guerin or BCG mitigates the effects of the novel coronavirus, allowing fewer people to be hospitalised or to die from COVID-19.

In the U.S., there are at least 25,000 cases across all 50 states, plus Puerto Rico, the U.S. Virgin Islands and Washington D.C. At least 323 have died from the virus.

Milwaukee Journal Sentinel: ‘We have to test more people’: Wisconsin expands coronavirus testing for African American, Latino and tribal communities. “All African Americans, Latinos and tribal community members in Wisconsin will have access to free COVID-19 testing under a plan announced Thursday by Gov. Tony Evers. Evers’ plan is an effort to combat the staggering … Continue reading ‘We have to test more people’: Wisconsin expands coronavirus testing for African American, Latino and tribal communities (Milwaukee Journal Sentinel)