The tank behaved like a pressure cooker, say experts

Obama cast the US response to the virus as an outgrowth of tribalism as he sought to emphasise the urgency of the November election

During his call with 3,000 members of the Obama Alumni Association, Obama urged his supporters to show their full support towards Democratic presidential candidate Joe Biden.

Climate change and urbanisation 'threaten groundwater', say scientists  ENDS Report

Among different types of polymorphism, disappearing polymorphism deals with the metastable kinetic form which can not be reproduced after its first isolation. In the world of coordination polymers (CPs) and metal–organic frameworks (MOFs), despite the fact that many types of supramolecular isomerism exist, we are unaware of disappearing supramolecular isomerism akin to disappearing polymorphism. This work reports a MOF with dia topology that could not be reproduced, but subsequent synthesis yielded another supramolecular isomer, a double-pillared-layer MOF. When perylene was added in the same reaction, the disappeared dia MOF reappeared with perylene as a guest in the channels. Interestingly, the photoluminescence of the dia MOF with a perylene guest is dominated by the emission of the guest molecule. The influence of guest molecules on the stabilization of the supramolecular isomers of a MOF opens up a strategy to access MOFs with different structures.

Double-sided Fresnel zone plates are diffractive lenses used for high-resolution hard X-ray microscopy. The double-sided structures have significantly higher aspect ratios compared with single-sided components and hence enable more efficient imaging. The zone plates discussed in this paper are fabricated on each side of a thin support membrane, and the alignment of the zone plates with respect to each other is critical. Here, a simple and reliable way of quantifying misalignments by recording efficiency maps and measuring the absolute diffraction efficiency of the zone plates as a function of tilting angle in two directions is presented. The measurements are performed in a setup based on a tungsten-anode microfocus X-ray tube, providing an X-ray energy of 8.4 keV through differential measurements with a Cu and an Ni filter. This study investigates the sources of the misalignments and concludes that they can be avoided by decreasing the structure heights on both sides of the membrane and by pre-programming size differences between the front- and back-side zone plates.

When a natural disaster strikes, it devastates lives and homes, and can even destroy a culture’s identity and history. After a disaster, humanitarian response is […]

The post Protecting Puerto Rico’s heritage from another disaster appeared first on Smithsonian Insider.

As the host of PBS’s “Scientific American Frontiers,” Alan Alda has interviewed scientists, physicists, neuroscientists, and academics. Forging a connection with these guests through freewheeling […]

The post Alan Alda: Relating Through Improvisation appeared first on Smithsonian Insider.

Residents of the southeastern United States might occasionally come across an oddity along a barbed-wire fence: a series of insects, mice or even small birds […]

The post Tiny, fierce and disappearing: breeding program aims to help the loggerhead shrike appeared first on Smithsonian Insider.

Visa has teamed up with Kenyan telecom Safaricom, operator...

On average, Americans die sooner and experience higher rates of disease and injury than people in other high-income countries, says a new report from the National Research Council and Institute of Medicine.

The increase in the number of children from low-income families who are receiving federal disability benefits for speech and language disorders over the past decade parallels the rise in the prevalence of these disorders among all U.S. children, says a new report by the National Academies of Sciences, Engineering, and Medicine.

A new report from the National Academies of Sciences, Engineering, and Medicine identifies six promising practices to improve health care for individuals with social risk factors for poor health care outcomes, such as people who are in a low socio-economic position, reside in disadvantaged neighborhoods, identify as a racial or ethnic minority, or possess limited health literacy.

Today the science academies of the G7 countries and seven additional academies issued three joint statements to their respective governments to inform discussions during the G7 summit to be held in May in Japan, as well as ongoing policymaking.

A new report from the National Academies of Sciences, Engineering, and Medicine says that Medicare’s value-based payment programs could take into account social risk factors – such as low socio-economic position, residence in disadvantaged neighborhoods, or race and ethnicity – but any proposal to do so will entail both advantages and disadvantages that need to be carefully considered.

Assistive products and technologies – such as wheelchairs, upper-limb prostheses, and hearing and speech devices – hold promise for partially or fully mitigating the effects of impairments and enabling people with disabilities to work, but in some cases environmental and personal factors create additional barriers to employment, says a new report from the National Academies of Sciences, Engineering, and Medicine.

In a letter to the U.S. Department of State, the presidents of the National Academy of Sciences, National Academy of Engineering, and National Academy of Medicine expressed concern that a proposal to add supplemental questions for visa applicants.

The academic biomedical research community should improve its ability to mitigate and recover from the impacts of disasters, says a new report from the National Academies of Sciences, Engineering, and Medicine.

Our ability to observe and predict severe weather events and other disasters has improved markedly over recent decades, yet this progress does not always translate into similar advances in the systems used in such circumstances to protect lives.

A new report from the National Academies of Sciences, Engineering, and Medicine examines to what extent and in which ways health care utilization -- such as in-patient hospitalizations, emergency department use, and hospital readmission -- reflects disease severity, disability, and ability to perform gainful activity.

While a variety of services and programs exist to support the needs of children with disabilities and their families, a focus on achieving specific near- and long-term goals that help prepare for adulthood and coordination of care within and across service sectors are integral to encouraging healthy growth and development, says a new report from the National Academies of Sciences, Engineering, and Medicine.

The U.S. Department of Veterans Affairs (VA) should expand the requirement in its disability compensation process regarding who can diagnose traumatic brain injury (TBI) to include any health care professional with pertinent and ongoing brain injury training and experience, says a new congressionally mandated report from the National Academies of Sciences, Engineering, and Medicine.

Assessments of a person’s ability to function at work provide important information for disability determinations, and many validated tests are available to assess work-related physical and mental functions.

A National Academies of Sciences, Engineering, and Medicine study that is now underway aims to identify best practices for collecting, recording, and reporting death and illness data during and immediately after large-scale weather disasters.

Summer is a chance for children and youth to continue developing, but for those living in disadvantaged communities, summertime experiences can lead to worse health, social, emotional, academic, and safety outcomes, says a new report from the National Academies of Sciences, Engineering, and Medicine.

One of the features of the Windows 10 Start Menu is a built-in Bing search when a local search fails to find anything. Whether it be due to privacy reasons, bugs, or just personal dislike, this article will explain how to disable Bing search in the Start Menu. [...]

US President Barack Obama and Republican Presidential nominee Mitt Romney debate on October 16, 2012 at Hofstra University in Hempstead, New York. Undecided voters asked questions during a town hall format.; Credit: STAN HONDA/AFP/Getty Images

There continue to be questions about how moderators approach Presidential debates and about whether the extra time President Obama has received in the first two debates indicates moderator bias in his favor. 

I had chalked up the concerns to Republican hyper-partisanship, such as we saw with many Democrats criticizing Jim Lehrer for his moderating — as though Obama would’ve won the first debate if only Lehrer had asserted himself more.   However, even CNN has been doing significant follow-up on its own Candy Crowley’s performance in debate number two. 

Maybe it’s not just hardcore GOP loyalists who are questioning Crowley’s decision-making on when to cut in and when to allow the candidates to take more time. I thought she did pretty well, but there are plenty of critics.

As someone who has moderated hundreds of debates, I thought I’d share my thoughts on what we’ve seen so far in this election. Though I’ve never moderated a Presidential debate, with its incredible level of attention, concern about rules, and demands by campaigns, there are certain fundamentals regardless of the office or issue at stake.

Time Doesn't Matter...Too Much
First, as strange as this may sound, the time taken by each candidate has little to do with who has an advantage.   Yes, it’s always possible for a candidate to use another minute to fire off the defining line of the night. However, the well-practiced zingers or essential policy explainers are not left to the end of a candidate’s statement, as the clock is running out. 

I’m sure Mitt Romney wasn’t thinking after the last debate, “If only I would’ve had that extra 90-seconds, and Obama hadn’t gotten 90 more than he deserved.”  Both men front-loaded their major talking points and were going to get them in. Neither man could legitimately say he didn’t have a chance to make his strongest points. At some point, a time advantage could make a difference in who wins or loses, but an extra 90-seconds in a debate longer than 90-minutes isn’t going to do it.

Serving The Audience
As a moderator, you also have to think about what best serves your audience. I never guarantee candidates equal time, as it’s my job to serve the listeners, not their campaigns. I strive to get close to equal time, but can’t make any guarantee. Some speakers get to the point succinctly and have their points well put together. Others are messier in their arguments and eat up time just building up any head of steam. 

If the moderator holds to a strict time limit, you run the risk of frustrating listeners by cutting off the rambler just as the candidate is getting to the point. There are methods a moderator can use to help guide the speaker toward being more succinct, but there’s no guarantee the person will be able to comply.

Isn’t this inherently unfair to the succinct speaker? No. The purpose of the debate is to allow the ideas to compete.  It’s not a boxing match that’s about landing punches in a given time. The succinct debater has a big advantage, regardless of how much time the candidate has. That’s why Mitt Romney’s victory in the first debate was so lopsided — he won on the conciseness and clarity of his answers, coupled with Obama’s inability to get to his central points.  Obviously, there are those who thought Obama’s arguments were still more compelling than Romney’s, and that Romney lacked essential details.  However, for most viewers of the first debate, it was stylistically no contest.

Equal Time Is Not A Guarantee
When candidates are allowed to talk to each other directly, it’s very difficult to assure equal time. Even CNN’s clock that registers elapsed time for each candidate is subject to squishiness. Unless a debate is extremely formal, with carefully controlled time limits and a ban on candidates following-up with each other, you’re only going to have an approximation of time balance. I thought Crowley did pretty well to land the second debate with the balance she did. I’m not sure I could get it that close for a debate of that length. She had the added challenge of trying to determine when to cut in on President Obama’s lengthier answers. Also, Romney’s speaking rhythm allows more space for interruption. It’s tougher to break in on Obama.

Moderating Is A Balancing Act
Moderators are always trying to balance a need to move on to the next topic with allowing a candidate to answer an opponent’s charge. Sometimes, you open that door for a candidate, only to regret it later when the politician starts into a monologue, instead of confining the response to the previous challenge. Sometimes moderators, having gotten burned, will become less tolerant of such expansive rebuttals, as the debate goes on. Moderators are always juggling competing goals, and it’s a difficult job (at least for me).

Unfortunately, there are those who think debate moderators attempt to influence the outcome of the debate and the performances of the candidates. Maybe I’m naïve, but I can’t imagine any journalist who’s worked hard enough to get to the position of Presidential debate moderator subordinating his or her career in an effort to getting someone elected. Mainstream political journalism is like national sports reporting. You really don’t care who wins the Super Bowl, you want great story lines to explore with your audience. Yes, sports reporters have affinities for the hometown teams of their youth, but that can’t compete with the professional goal of covering great stories. 

Yes, most journalists in mainstream media probably have a stronger cultural and political affinity for Obama, as he’s more like them. However, it doesn’t mean a journalist is going to sacrifice the better story to intentionally provide a benefit to the President.

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

Education Secretary Betsy DeVos says there is 'no reason' to waive main parts of the federal special education law.; Credit: Alex Brandon/AP

U.S. Education Secretary Betsy DeVos will not recommend that Congress waive the main requirements of three federal education laws, including the Individuals with Disabilities Education Act, known as IDEA. The federal law ensures that children with disabilities have a right to a free, appropriate public education whenever and wherever schools are operating.

When Congress passed the coronavirus relief package, known as the CARES act, they included a provision that allowed the Secretary to request waivers to parts of the special education law during the pandemic. The concern was that holding strictly to IDEA and other laws could hinder schools in the urgency to move schooling from the classroom setting to online and home-based approaches.

Th waiver provision, however, made disability advocates nervous. "We're talking about waiving a civil right for our most vulnerable people in our society, children who don't vote, who have no voice, who are relying on their parents to advocate for them," Stephanie Langer, a Florida civil rights attorney who focuses on education and disability, told NPR in March.

But the Education Department came to the conclusions that in general, big changes weren't needed. "While the Department has provided extensive flexibility to help schools transition," Devos said in a statement, "there is no reason for Congress to waive any provision designed to keep students learning."

While the bulk of the IDEA remains unchanged, Devos did issue limited waivers to a few sections of the law, including one that will extend the timeline schools have to offer services. The provision that bans discrimination based on disability status, will go untouched.

"This is truly a celebration," says Kelly Grillo, a special education coordinator in Indiana. "My teams are elated to keep IDEA intact. Waivers would seriously threaten equitable education."

As schools and learning have moved online, one of the biggest challenges has been providing special education. School districts were concerned they might get sued if their digital offerings couldn't meet the needs of their students with disabilities, though the Education Department issued guidance in March telling schools to be flexible, writing in a fact sheet that disability law, "should not prevent any school from offering educational programs through distance instruction."

Educators say that flexibility helped them improve their offerings for students. "This situation made us get creative and actually allowed us to have an all-hands-on-deck approach," says Grillo.

But advocates warn there are still areas to watch, including in New Jersey, where parents have been asked to waive their right to sue before districts are able to provide their children with special education services.

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

The Deepwater Horizon accident raised concerns about the safety of deepwater drilling. From an analysis of risk assessments in the Norwegian Oil & Gas (O&G) Industry, a new study suggests that current safety approaches and indicators are limited and more extensive monitoring of drilling operations is needed to avoid events similar to Deepwater Horizon.

By analysing previous disasters, lessons learnt can be incorporated into policies and plans to manage the effects of future disasters. A recent study examining the 2009 L’Aquila earthquake in Italy suggests that although the national response effectively dealt with the emergency, longer-term measures to help local populations cope with the aftermath of the disaster need to be set out more clearly.

In the aftermath of natural disasters, displaced communities require temporary accommodation. A new study has examined how the built environment of these temporary communities influences their recovery and resilience, using accommodation set up after Hurricane Katrina as a case study. It highlights the importance of developing transitional built environments that consider the social and mental health needs of a community.

Managing landscapes effectively requires the involvement of a wide variety of stakeholders. The views and interests of these different groups can be effectively integrated by agri-environment 'collaboratives' — a type of bridging organisation which can be found in varying forms in Europe. Using data from Germany and the Netherlands, a study concludes that these groups make important contributions to landscape management, ranging from implementing policy to generating income.

One method that has been proposed for removing carbon dioxide (CO2) from the atmosphere is to ‘fertilise’ the ocean to encourage phytoplankton (algae) blooms. A recent study has outlined the environmental, legal and social implications of large-scale fertilisation of the sea with urea in the Sulu Sea off the coast of the Philippines.

Tiny organisms called phytoplankton, which are crucial components of marine ecosystems, have been slowly disappearing over the last century, according to researchers. The decline is worrying because it may have profound effects on marine life, fisheries and carbon cycling. The study suggests the decline in phytoplankton could be linked to climate change.

A recent report has summarised what is currently known about the effects of ocean fertilisation as a climate change mitigation measure. The report highlights gaps in scientific understanding of the long term-effects of large-scale ocean fertilisation activities and raises questions about the effectiveness of the approach and the possibility of unintended impacts.

New research investigating the effects of naturally occurring iron fertilisation in the sea suggests that large scale geoengineering projects designed to sequester carbon in the deep sea could have a dramatic impact on marine ecosystems. The study found that the organic matter arriving at the sea floor and the species that live there are very different, depending on whether waters are fertilised by iron leached from nearby islands or not.