What is it like to be the curator of Great Cats at the National Zoo? We interviewed Craig Saffoe to hear firsthand.

The post What is it like to be curator of Great Cats at the National Zoo? appeared first on Smithsonian Insider.

Scientists from the Migratory Bird Center of the Smithsonian Conservation Biology Institute are using transmitters to track the movements of shorebirds–the long-billed curlew, red knot, […]

The post Studying migratory connectivity of shorebirds on the Texas coast appeared first on Smithsonian Insider.

Identifying and understanding the migratory connectivity of birds throughout an entire annual cycle (not just the times of year they are in your back yard), […]

The post Video: Protecting songbirds by Better Understanding their Migratory connectivity appeared first on Smithsonian Insider.

Meet Amy Homma, the Director of Digital Learning at Art Lab+. Learn how Smithsonian’s Hirshhorn Museum and Sculpture Garden has created a dynamic program to […]

The post An Active Environment With Smithsonian Educator: Amy Homma appeared first on Smithsonian Insider.

The scientists staked out dozens of the gingers night and day while the plants flowered, but no long-proboscid pollinator ever appeared. Climate change, they surmised, was responsible for the loss of this highly specialized and now, perhaps forever unknown insect.

The post With specialist pollinator absent, Himalayan gingers must adapt appeared first on Smithsonian Insider.

Orchids are beautiful, but their beauty can be deceiving. Most orchids don’t have any nectar, yet they cheat their pollinators into thinking that they do […]

The post The Secret Life of Orchids – Part II: Pollinators appeared first on Smithsonian Insider.

Finding a mouse in your morning coffee might give you an unwelcome jolt, but there’s a strong connection between small mammals, birds and the plantations […]

The post Of mice and macchiato: Bird Friendly coffee gives a paw-up to small mammals as well appeared first on Smithsonian Insider.

What might lure someone away from the sunny beaches and lush forests of Brazil to the concrete jungle of Washington, D.C.? For wood anatomist Marcelo […]

The post Rigid yet flexible: Anatomy of woody vines has its grip on botanist Marcelo Pace appeared first on Smithsonian Insider.

Millions, if not billions, of specimens reside in the world’s natural history collections, but most of these have not been carefully studied, or even looked […]

The post Using digitized Botany specimens, AI excels in simple curatorial tasks appeared first on Smithsonian Insider.

The title complex, Cu(L)2 or [Cu(C15HF10O2)2], comprising one copper ion and two fully fluorinated ligands (L−), was crystallized with 3,4-ethyl­ene­dioxy­thio­phene (EDOT, C6H6O2S) as a guest mol­ecule to give in a di­chloro­methane solution a unique co-crystal, Cu(L)2·3C6H6O2S.

Compared with X-rays, electron diffraction faces a crucial challenge: dynamical electron scattering compromises structure solution and its effects can only be modelled in specific cases. Dynamical scattering can be reduced experimentally by decreasing crystal size but not without a penalty, as it also reduces the overall diffracted intensity. In this article it is shown that nanometre-sized crystals from organic pharmaceuticals allow positional refinement of the hydrogen atoms, even whilst ignoring the effects of dynamical scattering during refinement. To boost the very weak diffraction data, a highly sensitive hybrid pixel detector was employed. A general likelihood-based computational approach was also introduced for further reducing the adverse effects of dynamic scattering, which significantly improved model accuracy, even for protein crystal data at substantially lower resolution.

Diffuse scattering is a rich source of information about disorder in crystalline materials, which can be modelled using atomistic techniques such as Monte Carlo and molecular dynamics simulations. Modern X-ray and neutron scattering instruments can rapidly measure large volumes of diffuse-scattering data. Unfortunately, current algorithms for atomistic diffuse-scattering calculations are too slow to model large data sets completely, because the fast Fourier transform (FFT) algorithm has long been considered unsuitable for such calculations [Butler & Welberry (1992). J. Appl. Cryst. 25, 391–399]. Here, a new approach is presented for ultrafast calculation of atomistic diffuse-scattering patterns. It is shown that the FFT can actually be used to perform such calculations rapidly, and that a fast method based on sampling theory can be used to reduce high-frequency noise in the calculations. These algorithms are benchmarked using realistic examples of compositional, magnetic and displacive disorder. They accelerate the calculations by a factor of at least 102, making refinement of atomistic models to large diffuse-scattering volumes practical.

Structure-mining finds and returns the best-fit structures from structural databases given a measured pair distribution function data set. Using databases and heuristics for automation it has the potential to save experimenters a large amount of time as they explore candidate structures from the literature.

(The Paypers) Financial institutions (FIs) working in digital assets have been required by US regulatory bodies to pay attention to their anti-money laundering and...

Supporters of the late educator and civil rights advocate Sal Castro are working to keep his Chicano Youth Leadership Conference alive.; Credit: Crystal Marie Lopez/Flickr

When he died in 2013, Sal Castro drew praise as a Southern California civil rights leader who championed educational opportunities for generations of students of Mexican descent.

While a high school teacher in 1968, he helped thousands of students stage massive walkouts in Los Angeles' east side to protest high dropout rates and poor schooling that ignored their cultural background.

Supporters say his most influential legacy is the Chicano Youth Leadership Conference that he founded in 1963 as a weekend camp in the Santa Monica mountains. The gathering functioned as a cultural pep rally and intensive college application session.

“There was quite a large group of people that knew that this is not something that could die with him. That is when we had the idea to form a foundation to make sure that we keep his legacy alive,” said Myrna Brutti, the conference’s director.

Castro struggled to raise money for the conference, which counts among its alumni such well-known leaders as former Los Angeles Mayor Antonio Villaraigosa and filmmaker Moctesuma Esparza.

The Sal Castro Foundation typically spends about $60,000 to pay for the camp, including food and bus transportation. The group raises the money so that students can attend for free.

Applications to the next conference on March 6 have been sent to LAUSD high school campuses, targeting low-income Latinos, with a Feb. 20 deadline. Organizers hope in years ahead to open the conference to other Southland schools.

Brutti, a middle school principal, said she sees many more college application and high school to college bridge programs today. But a large group of high school students still go without college counseling, she said.

“These are 4.0, 3.7, 3.9, 4.2 [grade-point average] students that graduate from high school and go directly into the workforce because no one has taken the time to really go in depth on…what is available to them,” Brutti said.

The conference gives students like high school junior Savannah Pierce a broader view of their post-graduation choices. She attended the conference in October.

“I never really gave much thought to getting a doctorate degree,” Pierce said. “I thought I was going to do my four years of undergraduate and maybe graduate school. I never realized how many options and opportunities there were.”

When Castro talked to students of Mexican descent, he often transitioned seamlessly between English and Spanish, giving brief lessons on Mexican history and notable Mexicans. The current conference leaders are keeping that tradition alive.

“I never realized how deep and important my culture is and how rich it is with knowledge, and how hard people have worked in the past to get me where I am today,” Pierce said.

Other resources for students seeking help with college applications include:

1. California college and career planning

2. The College Board’s college planning helper

3. The Princeton Review’s college helper

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

A scientifically accurate and valid epidemiologic study of reproductive problems among the families of veterans exposed to radiation from atomic bombings and nuclear weapons tests is not feasible, concluded an Institute of Medicine (IOM) committee in a new report.

Incineration is widely used in the United States to reduce the volume of waste. Hundreds of incinerators -- including industrial kilns, boilers, and furnaces -- combust municipal and hazardous waste, while many more are used to burn medical waste.

Scientific evidence links mold and other factors related to damp conditions in homes and buildings to asthma symptoms in some people with the chronic disorder, as well as to coughing, wheezing, and upper respiratory tract symptoms in otherwise healthy people, says a new report from the Institute of Medicine of the National Academies.

Use of protective face coverings will be one of many strategies used to slow or prevent transmission of the flu virus in the event of a pandemic, even though scientific evidence about the effectiveness of inexpensive, disposable medical masks and respirators against influenza is limited.

Long-term population trends for some North American pollinators -- bees, birds, bats, and other animals and insects that spread pollen so plant fertilization can occur -- are demonstrably downward, says a new report from the National Research Council.

To transform the offshore oil and gas industry’s safety culture, operators, contractors, subcontractors, associations representing these groups, and federal regulators should collaborate to foster safety throughout all levels of the industry and confront challenges collectively, says a new report from the National Academies of Sciences, Engineering, and Medicine.

A profusion of biotechnology products is expected over the next five to 10 years, and the number and diversity of new products has the potential to overwhelm the U.S. regulatory system, says a new report from the National Academies of Sciences, Engineering, and Medicine.

A new book from the National Academies of Sciences, Engineering, and Medicine outlines how educators can develop and adapt student assessments for the classroom that reflect the approach to learning and teaching science described in the Next Generation Science Standards (NGSS) and similar standards.

The number of patients in the U.S. awaiting organ transplantation outpaces the amount of transplants performed in the U.S., and many donated organs are not transplanted each year due to several factors, such as poor organ function, says a new report from the National Academies of Sciences, Engineering, and Medicine.

Black lung disease cases in coal miners have been increasing since 2000 for uncertain reasons.

The U.S. Environmental Protection Agency has issued a proposed rule for strengthening transparency in regulatory science (April 30, 2018, 83 Federal Register 18768), which stipulates that EPA will ensure that the data and models underlying the pivotal science that informs significant regulatory actions are made publicly available, in a format that allows for outside analysis and validation.

The science questions that could be answered by an electron ion collider (EIC) – a very large-scale particle accelerator – are significant to advancing our understanding of the atomic nuclei that make up all visible matter in the universe, says a new report by the National Academies of Sciences, Engineering, and Medicine.

The National Academy of Medicine (NAM) along with the U.S. Food and Drug Administration’s Center for Tobacco Products (CTP) have named the 2018-2019 class of FDA Tobacco Regulatory Science Fellows.

Half-facepiece reusable elastomeric respirators are an effective and viable option for protecting health care workers from exposure to airborne transmissible contaminants or infectious agents — for example, influenza virus — during day-to-day work or with a sudden or rapid influx of patients, such as during a public health emergency, says a new report from the National Academies of Sciences, Engineering, and Medicine.

A commentary published in Nature calls for a moratorium on clinical uses of heritable human genome editing and the establishment of an international governance framework.

Medicine regulatory authorities — including the U.S. Food and Drug Administration (FDA) — should strengthen cooperation with other countries’ regulators to ensure the quality, safety, and efficacy of medicines, says a new report from the National Academies of Sciences, Engineering, and Medicine.

The federal government should foster collaboration and decrease obstacles that can keep foreign atomic, molecular, and optical (AMO) physicists from working in the United States, if the nation is to maintain its position as leader in these fields, says a new report from the National Academies of Sciences, Engineering, and Medicine.

The goal of achieving universal health coverage by 2030 — one of the United Nations’ Sustainable Development Goals — necessitates that countries strengthen their food and drug regulatory systems as a whole, says a new report from the National Academies of Sciences, Engineering, and Medicine.

Healthy People 2030 (HP2030) – which will set national objectives for improving the health of all Americans from 2020 to 2030 – should include in its Leading Health Indicators (LHIs) voting as a measure of civic engagement, the health effects of climate change, and indicators of racial and ethnic residential segregation, says a new report from the National Academies of Sciences, Engineering, and Medicine.

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

The Department of Toxic Substances Control is claiming that FedEx Ground has mishandled hazardous materials in packages. ; Credit: Thomas Hawk/via Flickr

State regulators have sued FedEx Ground, claiming the company mishandled hazardous chemicals at facilities throughout California during the last 5 years.  

An investigation into a fire four years ago in San Diego prompted a wider inquiry into how FedEx handles restricted chemicals in statewide shipping at all of its facilities.

Regulators claim FedEx didn’t handle thousands of damaged and hazardous packages properly. The state’s complaint claims FedEx would remove damaged packages from shipping and store them for lengthy periods of time in salvage drums, which were moved from hubs to terminals within the company’s network of facilities.  

These packages contained goods ranging from insecticides and acids to old batteries and other flammable and toxic materials – pretty small shipments, less than 65 pounds, but investigators say they’ve found problems with more than 20 tons of goods shipped over a 5-year period.

Each violation alleged in the state’s lawsuit carries a penalty of up to 25-thousand dollars. In a written statement, FedEx spokeswoman Katie Wassmer says the company "complies with all applicable local, state and federal reporting requirements." 

The state-court complaint is the latest legal salvo in a dispute among California and local officials and FedEx.

Earlier this spring, FedEx sued the DTSC and district attorneys from three cities, including Los Angeles, seeking a declaration that federal law pre-empts California's waste handling laws, and that state officials are incorrectly interpreting laws governing FedEx. 

"To preserve our rights as a federally-registered motor carrier, FedEx Ground filed suit in federal court" said Wassmer. "We are confident that a thorough review of the regulatory framework through the judicial process will support our position."

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

The entrance to the planned 17,000 sq.-foot Korean American National Museum to be built in Koreatown. ; Credit: Morphosis Architects

The Korean American National Museum is on pace to break ground next year on the corner of Vermont and Sixth.

New designs unveiled this week show an airy, modern-looking building that will include elements of Korean design and house photographs and other artifacts.  

Read more on LAist.com.

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

There are still a couple dozen tickets left for one of the most interestingly-cast performances of H.G. Wells, Orson Welles and Howard Koch's "War of the Worlds." On Saturday, Jan. 17,  generations of Star Trek actors will take on the world's most famous radio show.

The cast — directed by Jim Fall — features: René Auberjonois (“Star Trek: Deep Space Nine”), Michael Dorn (“Star Trek: TNG”), Dean Haglund (“The X-Files”), Walter Koenig ("Star Trek"), Linda Park ("Star Trek: Enterprise"), Jason Ritter (“The Event”), Tim Russ (“Star Trek: Voyager”), Armin Shimerman (“Star Trek: Deep Space Nine”) and Wil Wheaton, playing... Orson Welles.

The performance is a fundraiser for Sci-Fest LA, the new annual science fiction play festival, so tickets aren't cheap — but they're scarce, and this looks like a memorable night.

KPCC and "Off-Ramp" celebrated the 75th anniversary of the broadcast last year by distributing the original 1938 performance, and a new documentary, internationally... introduced by George Takei, another original Trek actor you might have heard of.

War of the Worlds: Sat., Jan. 17,  8 PM; The Acme Theatre, 135 North La Brea Ave. LA CA 90036

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

The serious inflammatory syndrome sending some children and teens to the hospital remains extremely uncommon, doctors say. But if your child spikes a high, persistent fever, and has severe abdominal pain and vomiting that doesn't make them feel better, call your doctor as a precaution.; Credit: Sally Anscombe/Getty Images

Sixty-four children and teens in New York State are suspected of having a mysterious inflammatory syndrome that is believed to be linked to COVID-19, the New York Department of Health said in an alert issued Wednesday. A growing number of similar cases — including at least one death — have been reported in other parts of the U.S. and Europe, though the phenomenon is still not well-understood.

Pediatricians say parents should not panic; the condition remains extremely rare. But researchers also are taking a close look at this emerging syndrome, and say parents should be on the lookout for symptoms in their kids that might warrant a quick call to the doctor — a persistent high fever over several days and significant abdominal pains with repeated vomiting, after which the child does not feel better.

"If [the child is] looking particularly ill, you should definitely call the doctor," says Dr. Sean O'Leary, a pediatric infectious disease specialist at Children's Hospital Colorado Anschutz Medical Campus and member of the infectious disease committee for the American Academy of Pediatrics.

The new condition associated with COVID-19 is called Pediatric Multi-System Inflammatory Syndrome. Symptoms include persistent fever, extreme inflammation, and evidence of one or more organs that are not functioning properly, says cardiologist Jane Newburger, a professor of pediatrics at Harvard Medical School and director of the Kawasaki Program at Boston Children's Hospital.

"It's still very rare, but there's been a wave of cases. Physicians and scientists are working hard to understanding the mechanisms at play, and why only some children are so severely affected," Newburger says.

Some symptoms can resemble features of Kawasaki Disease Shock Syndrome. Kawasaki Disease is an acute illness in children involving fever, together with symptoms of rash, conjunctivitis, redness in the lips, tongue and mucous membranes of the mouth and throat, swollen hands and/or feet, and sometimes a large group of lymph nodes on one side of the neck, says Newburger. Some children with the condition develop enlargement of the coronary arteries and aneurysms in those blood vessels.

A small percentage of Kawasaki cases go on to develop symptoms of shock – which can include a steep drop in systolic blood pressure and difficulty with sufficient blood supply to the body's organs. Kawasaki disease and KDSS more often affect young children, although they can sometimes affect teens, Newburger says.

Some cases of the new inflammatory syndrome have features that overlap with KD or with KDSS — including rash, conjunctivitis, and swollen hands or feet. The new inflammatory syndrome can affect not only young children but also older children and teens.

But patients with the new syndrome have lab results that look very different, in particular, "cardiac inflammation to a greater degree than we typically see in Kawasaki shock syndrome," which is usually very rare, O'Leary says. In New York City and London, which have seen large numbers of cases of COVID-19 cases, "those types of patients are being seen with greater frequency."

Some patients "come in very, very sick," with low blood pressure and high fever, O'Leary says. Some children have had coronary artery aneurysms, though most have not, he adds.

Other patients exhibit symptoms more similar to toxic shock syndrome, with abdominal pain, vomiting and diarrhea and high levels of inflammation in the body, as well as the heart, O'Leary says. Most cases are treated in the intensive care unit, he says. Treatment includes intravenous immunoglobulin, which can "calm the immune system," says Newburger, as well as steroids and cytokine blockers.

The evidence so far from Europe, where reports of the syndrome first emerged, suggests most children will recover with proper supportive care, says O'Leary, though one adolescent, a 14-year-old boy in London, has died, according to a report published Wednesday in The Lancet.

Most children with the syndrome, O'Leary and Newburger note, have either tested positive for a current infection with the coronavirus, or for antibodies to the virus, which would suggest they were infected earlier and recovered from it.

And, according to case reports, some of the kids with the inflammatory syndrome who tested negative on coronavirus tests had been exposed at some point to someone known to have COVID-19. The inflammatory syndrome can appear days to weeks after COVID-19 illness, doctors say, suggesting the syndrome arises out of the immune system's response to the virus.

"One theory is that as one begins to make antibodies to SARS-COV-2, the antibody itself may be provoking an immune response," says Newburger. "This is only happening in susceptible individuals whose immune systems are built in a particular way. It doesn't happen in everybody. It's still a really uncommon event in children."

In late April, the U.K.'s National Health Service issued an alert to pediatricians about the syndrome. Reports have also surfaced in France, Spain and Italy, and probably number in the dozens globally, Newburger and O'Leary say, though doctors still don't have hard numbers. Newburger says there needs to be a registry where doctors can report cases "so we can begin to generate some statistics."

"Doctors across countries are talking to each other, but we need for there to be some structure and some science so that everybody can interpret," she says.

Earlier this week, the New York City Health Department issued an alert saying 15 children ranging in age from 2 to 15 had been hospitalized with the syndrome. Newburger says that she's been contacted about cases in New Jersey and Philadelphia, as well.

While the syndrome's precise connection to the coronavirus isn't yet clear, O'Leary says the fact that the children in most of these cases are testing positive for exposure to the virus, one way or another, provides one point of evidence. The sheer number of cases — small in absolute terms, but still "much higher than we would expect normally for things like severe Kawasaki or toxic shock syndrome" — provides another, he says.

And then there's the fact that most reports of the syndrome have come out of the U.K. and New York City, places that have been hit with large numbers of COVID-19 cases.

"It's pure speculation at this point," he says, "but the U.K. cluster kind of went up about a month after their COVID-19 infections went up, which would suggest that it is some kind of an immune phenomenon."

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

Brad Bird accepts the Best Animated Feature Award for Incredibles 2 during The National Board of Review Annual Awards Gala at Cipriani 42nd Street on January 8, 2019 in New York City. ; Credit: Dia Dipasupil/Getty Images for National Board

Brad Bird has made a name for himself as the director of new age, animated classics, like “The Iron Giant” and “The Incredibles”. Now he’s teaming up with Turner Classic Movies to share his picks for classic movie watching that will keep you busy and entertained while you’re stuck at home.

Bird has curated a list of his favorite films which will air on this season’s “The Essentials” with TCM Primetime host Ben Mankiewicz. Every Saturday from May up to January of next year, TCM will air one of twenty movies chosen by Bird. His list includes big-name classics that any movie buff will recognize, like “Casablanca” and “Dr. Strangelove”. But Bird throws in a few surprises, one being that there are no animated films on his list. Another surprising thing viewers will notice is that about a third of the films included are musicals, like “Singin’ In The Rain” and “Guys And Dolls”. With TCM’s seemingly infinite library of movie classics to choose from, Bird says narrowing it down to only twenty favorites was a challenge. According to Bird, his list comprises movies that are not only entertaining but “transcend time” and “speak in a language that is still in many ways current”.

“The Essentials” was filmed in early December, but Bird’s list is coming out during a time when movie-going is looking very different these days. The virus has put the entire film industry on pause, with studios halting production and theaters closing their doors indefinitely. In lieu of new movie releases and regular theater-going, many are taking the opportunity to revisit the classics and Bird’s list provides a starting guide for which ones should be on your watch-list.

Today on FilmWeek, Brad Bird joins us to talk about his favorite movies, what projects he has lined up, and his thoughts on how the film industry is adjusting to and getting through the pandemic.

TCM’s “The Essentials” will air on Saturdays at 8 p.m. beginning May 2. For the full list and schedule of films, click here.

Guest:

Brad Bird, animator, director and screenwriter whose directing credits include Pixar’s “Ratatouille” and “The Incredibles” films and Disney’s “The Iron Giant”; he tweets at @BradBirdA113

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

Shares of Kraton Corp. traded 24% higher after the specialty polymers and high-value biobased products maker reported that net income in Q1/20 increased to $209.0 million, compared to $13.6 million in Q1/19.

A new study has investigated the possibility of a regional industrial symbiosis of metal industries across the Sweden-Finland border. The analysis suggests that it is technologically feasible, but that regulatory support may be inefficient, particularly with respect to changing the status of a waste product to a by-product.

Current knowledge on the availability of mineral resources is explored in a recent study, which focuses on phosphorus as a key example. Static measures of availability, such as the consumption-to-production ratio, are useful as early warning signals, the researchers suggest, but more dynamic indicators that consider technological development and population change are needed to better inform policy.

A new study has investigated the possibility of a regional industrial symbiosis of metal industries across the Sweden-Finland border. The analysis suggests that it is technologically feasible, but that regulatory support may be inefficient, particularly with respect to changing the status of a waste product to a by-product.