The damage threshold of an Au-coated flat mirror, one of the reflective optics installed on the FEL-2 beamline of the Dalian Coherent Light Source, China, upon far-UV free-electron laser irradiation is evaluated. The surface of the coating is characterized by profilometer and optical microscope. A theoretical approach of the phenomenon is also presented, by application of conventional single-pulse damage threshold calculations, a one-dimensional thermal diffusion model, as well as finite-element analysis with ANSYS.

Using a 1:1 cocrystal of (E)-N-(3,4-di­fluoro­phen­yl)-1-(pyridin-4-yl)methanimine with acetic acid, C12H8F2N2·C2H4O2, we investigate the influence of F atoms introduced to the aromatic ring on promoting π–π inter­actions. The cocrystal crystallizes in the triclinic space group P1. Through crystallographic analysis and com­putational studies, we reveal the mol­ecular arrangement within this co­crystal, demonstrating the presence of hydrogen bonding between the acetic acid mol­ecule and the pyridyl group, along with π–π inter­actions between the aromatic rings. Our findings highlight the importance of F atoms in promoting π–π inter­actions without necessitating full halogenation of the aromatic ring.

The synthesis, crystal structure and magnetic properties of an ox­am­ate-con­taining erbium(III) com­plex, namely, tetra­butyl­ammonium aqua­[N-(2,4,6-tri­methyl­phen­yl)oxamato]erbium(III)–di­methyl sulfoxide–water (1/3/1.5), (C16H36N)[Er(C11H12NO3)4(H2O)]·3C2H6OS·1.5H2O or n-Bu4N[Er(Htmpa)4(H2O)]·3DMSO·1.5H2O (1), are reported. The crystal structure of 1 reveals the occurrence of an erbium(III) ion, which is surrounded by four N-phenyl-substituted ox­am­ate ligands and one water mol­ecule in a nine-coordinated environment, together with one tetra­butyl­ammonium cation acting as a counter-ion, and one water and three dimethyl sulfoxide (DMSO) mol­ecules of crystallization. Variable-temperature static (dc) and dynamic (ac) magnetic mea­sure­ments were carried out for this mononuclear com­plex, revealing that it behaves as a field-induced single-ion magnet (SIM) below 5.0 K.

The large Bunyavirales order includes several families of viruses with a segmented ambisense (−) RNA genome and a cytoplasmic life cycle that starts by synthesizing viral mRNA. The initiation of transcription, which is common to all members, relies on an endonuclease activity that is responsible for cap-snatching. In La Crosse virus, an orthobunyavirus, it has previously been shown that the cap-snatching endonuclease resides in the N-terminal domain of the L protein. Orthobunyaviruses are transmitted by arthropods and cause diseases in cattle. However, California encephalitis virus, La Crosse virus and Jamestown Canyon virus are North American species that can cause encephalitis in humans. No vaccines or antiviral drugs are available. In this study, three known Influenza virus endonuclease inhibitors (DPBA, L-742,001 and baloxavir) were repurposed on the La Crosse virus endonuclease. Their inhibition was evaluated by fluorescence resonance energy transfer and their mode of binding was then assessed by differential scanning fluorimetry and microscale thermophoresis. Finally, two crystallographic structures were obtained in complex with L-742,001 and baloxavir, providing access to the structural determinants of inhibition and offering key information for the further development of Bunyavirales endonuclease inhibitors.

Crystallographic texture is a key organization feature of many technical and biological materials. In these materials, especially hierarchically structured ones, the preferential alignment of the nano constituents heavily influences the macroscopic behavior of the material. To study local crystallographic texture with both high spatial and angular resolution, we developed Texture Tomography (TexTOM). This approach allows the user to model the diffraction data of polycrystalline materials using the full reciprocal space of the crystal ensemble and describe the texture in each voxel via an orientation distribution function, hence it provides 3D reconstructions of the local texture by measuring the probabilities of all crystal orientations. The TexTOM approach addresses limitations associated with existing models: it correlates the intensities from several Bragg reflections, thus reducing ambiguities resulting from symmetry. Further, it yields quantitative probability distributions of local real space crystal orientations without further assumptions about the sample structure. Finally, its efficient mathematical formulation enables reconstructions faster than the time scale of the experiment. This manuscript presents the mathematical model, the inversion strategy and its current experimental implementation. We show characterizations of simulated data as well as experimental data obtained from a synthetic, inorganic model sample: the silica–witherite biomorph. TexTOM provides a versatile framework to reconstruct 3D quantitative texture information for polycrystalline samples; it opens the door for unprecedented insights into the nanostructural makeup of natural and technical materials.

Biological materials have outstanding properties. With ease, challenging mechanical, optical or electrical properties are realised from comparatively `humble' building blocks. The key strategy to realise these properties is through extensive hierarchical structuring of the material from the millimetre to the nanometre scale in 3D. Though hierarchical structuring in biological materials has long been recognized, the 3D characterization of such structures remains a challenge. To understand the behaviour of materials, multimodal and multi-scale characterization approaches are needed. In this review, we outline current X-ray analysis approaches using the structures of bone and shells as examples. We show how recent advances have aided our understanding of hierarchical structures and their functions, and how these could be exploited for future research directions. We also discuss current roadblocks including radiation damage, data quantity and sample preparation, as well as strategies to address them.

The title compound [systematic name: 1-(2-nitro­phen­yl)pyrrole-2,5-dione], C10H6N2O4, crystallizes in the monoclinic system (space group P21/n) with two mol­ecules in the asymmetric unit, which are linked by C—H⋯O hydrogen bonds. Hirshfeld surface analysis showed that the most significant contributions to the crystal packing are from H⋯O/O⋯H, H⋯C/C⋯H and H⋯H inter­actions, which contribute 54.7%, 15.2% and 15.6%, respectively. A DFT study was conducted using three different levels of theory [(B3LYP/6–311+G(d,p), wB97XD/Def2TZVPP and LC-wpbe/6–311(2 d,2p)] in order to determine the stability, structural and electronic properties of the title mol­ecule with a view to its potential applications and photochemical and copolymer properties.

Controlling the shape and size dispersivity and crystallinity of nanoparticles (NPs) has been a challenge in identifying these parameters' role in the physical and chemical properties of NPs. The need for reliable quantitative tools for analyzing the dispersivity and crystallinity of NPs is a considerable problem in optimizing scalable synthesis routes capable of controlling NP properties. The most common tools are electron microscopy (EM) and X-ray scattering techniques. However, each technique has different susceptibility to these parameters, implying that more than one technique is necessary to characterize NP systems with maximum reliability. Wide-angle X-ray scattering (WAXS) is mandatory to access information on crystallinity. In contrast, EM or small-angle X-ray scattering (SAXS) is required to access information on whole NP sizes. EM provides average values on relatively small ensembles in contrast to the bulk values accessed by X-ray techniques. Besides the fact that the SAXS and WAXS techniques have different susceptibilities to size distributions, SAXS is easily affected by NP–NP interaction distances. Because of all the variables involved, there have yet to be proposed methodologies for cross-analyzing data from two techniques that can provide reliable quantitative results of dispersivity and crystallinity. In this work, a SAXS/WAXS-based methodology is proposed for simultaneously quantifying size distribution and degree of crystallinity of NPs. The most reliable easy-to-access size result for each technique is demonstrated by computer simulation. Strategies on how to compare these results and how to identify NP–NP interaction effects underneath the SAXS intensity curve are presented. Experimental results are shown for cubic-like CeO2 NPs. WAXS size results from two analytical procedures are compared, line-profile fitting of individual diffraction peaks in opposition to whole pattern fitting. The impact of shape dispersivity is also evaluated. Extension of the proposed methodology for cross-analyzing EM and WAXS data is possible.

The influence of various combinations of residual stress, composition and grain interaction gradients in polycrystalline materials with cubic symmetry on energy-dispersive X-ray stress analysis is theoretically investigated. For the evaluation of the simulated sin2ψ distributions, two different strategies are compared with regard to their suitability for separating the individual gradients. It is shown that the separation of depth gradients of the strain-free lattice parameter a0(z) from residual stress gradients σ(z) is only possible if the data analysis is carried out in section planes parallel to the surface. The impact of a surface layer z* that is characterized by a direction-dependent grain interaction model in contrast to the volume of the material is quantified by comparing a ferritic and an austenitic steel, which feature different elastic anisotropy. It is shown to be of minor influence on the resulting residual stress depth profiles if the data evaluation is restricted to reflections hkl with orientation factors Γhkl close to the model-independent orientation Γ*. Finally, a method is proposed that allows the thickness of the anisotropic surface layer z* to be estimated on the basis of an optimization procedure.

Understanding the structure–property relationship in electrocatalysts under working conditions is crucial for the rational design of novel and improved catalytic materials. This paper presents the Aarhus University reactor for electrochemical studies using X-rays (AUREX) operando electrocatalytic flow cell, designed as an easy-to-use versatile setup with a minimal background contribution and a uniform flow field to limit concentration polarization and handle gas formation. The cell has been employed to measure operando total scattering, diffraction and absorption spectroscopy as well as simultaneous combinations thereof on a commercial silver electrocatalyst for proof of concept. This combination of operando techniques allows for monitoring of the short-, medium- and long-range structure under working conditions, including an applied potential, liquid electrolyte and local reaction environment. The structural transformations of the Ag electrocatalyst are monitored with non-negative matrix factorization, linear combination analysis, the Pearson correlation coefficient matrix, and refinements in both real and reciprocal space. Upon application of an oxidative potential in an Ar-saturated aqueous 0.1 M KHCO3/K2CO3 electrolyte, the face-centered cubic (f.c.c.) Ag gradually transforms first to a trigonal Ag2CO3 phase, followed by the formation of a monoclinic Ag2CO3 phase. A reducing potential immediately reverts the structure to the Ag (f.c.c.) phase. Following the electrochemical-reaction-induced phase transitions is of fundamental interest and necessary for understanding and improving the stability of electrocatalysts, and the operando cell proves a versatile setup for probing this. In addition, it is demonstrated that, when studying electrochemical reactions, a high energy or short exposure time is needed to circumvent beam-induced effects.

SUBGROUPS is a free online program at the Bilbao Crystallographic Server (https://www.cryst.ehu.es/). It permits the exploration of all possible symmetries resulting from the distortion of a higher-symmetry parent structure, provided that the relation between the lattices of the distorted and parent structures is known. The program calculates all the subgroups of the parent space group which comply with this relation. The required minimal input is the space-group information of the parent structure and the relation of the unit cell of the distorted or pseudo-symmetric structure with that of the parent structure. Alternatively, the wavevector(s) observed in the diffraction data characterizing the distortion can be introduced. Additional conditions can be added, including filters related to space-group representations. The program provides very detailed information on all the subgroups, including group–subgroup hierarchy graphs. If a Crystallographic Information Framework (CIF) file of the parent high-symmetry structure is uploaded, the program generates CIF files of the parent structure described under each of the chosen lower symmetries. These CIF files may then be used as starting points for the refinement of the distorted structure under these possible symmetries. They can also be used for density functional theory calculations or for any other type of analysis. The power and efficiency of the program are illustrated with a few examples.

Hard X-ray microscopes with 20–30 nm spatial resolution ranges are an advanced tool for the inspection of materials at the nanoscale. However, the limited efficiency of the focusing optics, for example, a Fresnel zone plate (ZP) lens, can significantly reduce the power of a nanoprobe. Despite several reports on ZP lenses that focus hard X-rays with 20 nm resolution – mainly constructed by zone-doubling techniques – a systematic investigation into the limiting factors has not been reported. We report the structural effects on the focusing and imaging efficiency of 20–30 nm-resolution ZPs, employing a modified beam-propagation method. The zone width and the duty cycle (zone width/ring pitch) were optimized to achieve maximum efficiency, and a comparative analysis of the zone materials was conducted. The optimized zone structures were used in the fabrication of Pt-hydrogen silsesquioxane (HSQ) ZPs. The highest focusing efficiency of the Pt-HSQ-ZP with a resolution of 30 nm was 10% at 7 keV and >5% in the range 6–10 keV, whereas the highest efficiency of the Pt-HSQ-ZP with a resolution of 20 nm was realized at 7 keV with an efficiency of 7.6%. Optical characterization conducted at X-ray beamlines demonstrated significant enhancement of the focusing and imaging efficiency in a broader range of hard X-rays from 5 keV to 10 keV, demonstrating the potential application in hard X-ray focusing and imaging.

A COVID-19 vaccination clinic last month in Auburn, Maine. A drop in life expectancy in the U.S. stems largely from the coronavirus pandemic, a new study says.; Credit: Robert F. Bukaty/AP

A new study estimates that life expectancy in the U.S. decreased by nearly two years between 2018 and 2020, largely due to the COVID-19 pandemic. And the declines were most pronounced among minority groups, including Black and Hispanic people.

In 2018, average life expectancy in the U.S. was about 79 years (78.7). It declined to about 77 years (76.9) by the end of 2020, according to a new study published in the British Medical Journal.

"We have not seen a decrease like this since World War II. It's a horrific decrease in life expectancy," said Steven Woolf of the Virginia Commonwealth University School of Medicine and an author of the study released on Wednesday. (The study is based on data from the National Center for Health Statistics and includes simulated estimates for 2020.)

Beyond the more than 600,000 deaths in the U.S. directly from the coronavirus, other factors play into the decreased longevity, including "disruptions in health care, disruptions in chronic disease management, and behavioral health crisis, where people struggling with addiction disorders or depression might not have gotten the help that they needed," Woolf said.

The lack of access to care and other pandemic-related disruptions hit some Americans much harder than others. And it's been well documented that the death rate for Black Americans was twice as high compared with white Americans.

The disparity is reflected in the new longevity estimates. "African Americans saw their life expectancy decrease by 3.3 years and Hispanic Americans saw their life expectancy decrease by 3.9 years," Woolf noted.

"These are massive numbers," Woolf said, that reflect the systemic inequalities that long predate the pandemic.

"It is impossible to look at these findings and not see a reflection of the systemic racism in the U.S.," Lesley Curtis, chair of the Department of Population Health Sciences at Duke University School of Medicine, told NPR.

"This study further destroys the myth that the United States is the healthiest place in the world to live," Dr. Richard Besser, president of the Robert Wood Johnson Foundation (an NPR funder), said in an email.

He said wide differences in life expectancy rates were evident before COVID-19. "For example, life expectancy in Princeton, NJ—a predominantly White community—is 14 years higher than Trenton, NJ, a predominantly Black and Latino city only 14 miles away," Besser said.

Life expectancy in the U.S. had already been declining — albeit slowly — in the years leading up to the pandemic. And the U.S. has been losing ground compared with other wealthy countries, said Magali Barbieri of the University of California, Berkeley, in an editorial published alongside the new study.

The study estimates that the decline in life expectancy was .22 years (or about one-fifth of a year) in a group of 16 peer countries (including Austria, Finland, France, Israel, the Netherlands and the United Kingdom) compared with the nearly two-year decline in the United States.

"The U.S. disadvantage in mortality compared with other high income democracies in 2020 is neither new nor sudden," Barbieri wrote. It appears the pandemic has magnified existing vulnerabilities in U.S. society, she added.

"The range of factors that play into this include income inequality, the social safety net, as well as racial inequality and access to health care," Duke's Curtis said.

So, what's the prognosis going forward in the United States? "I think life expectancy will rebound," Woolf of Virginia Commonwealth said.

But it's unlikely that the U.S. is on course to reverse the trend entirely.

"The U.S. has some of the best hospitals and some of the greatest scientists. But other countries do far better in getting quality medical care to their population," Woolf said. "We have big gaps in getting care to people who need it most, when they need it most."

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

From wooden boxes and nets to 3D printers and gene editing, USGS scientists use tools old and new to tackle the tricky problems of bat science

Actor Dwayne Johnson (L) and Simone Alexandra Johnson attend the People's Choice Awards 2017 at Microsoft Theater on January 18, 2017 in Los Angeles, California. ; Credit: Christopher Polk

When Dwayne "The Rock" Johnson debuted his Hollywood persona in World Wrestling Entertainment in 2003, he was two years removed from his first successful protagonist role in "The Scorpion King" and on the heels of more film success with roles in "The Rundown" and "Walking Tall." 

Little did anyone foresee that "Hollywood" Rock would buoy the overall representation for Asian and Pacific Islanders in popular film for the next 20 years.

Last week, the USC Annenberg Inclusion Initiative released a report documenting the prevalence of Asian and Pacific Islanders both on-and off-screen across the top-grossing films each year from 2007 to 2019.  Of the 1,300 films examined, only 44 featured API actors playing lead roles, nearly a third of which were played by Johnson. 

The report offers more staggering statistics:

• In 2019, over a quarter of API characters in the top-grossing films died. Most died by drowning, explosions, stabbing or suicides

• Of the over 51,000 speaking characters in the 1,300 films examined, only 6% were Asian, Asian American or Native Hawaiian/Pacific Islanders

• Only 50 of the 1,447 directors in the 1,300 films examined were of API heritage.

• In 2019, 67% of API characters played stereotyped roles

The release of this report comes at a time of rising anti-Asian hate crimes nationally, and the authors of the report believe the portrayal of Asian and Pacific Islanders in mass media contributes to that. Today on FilmWeek, we delve into the study's findings and discuss the history of API filmmakers and actors in Hollywood.

Guests: 

Nancy Wang Yuen, professor of sociology at Biola University in La Mirada; she is co-author of “The Prevalence and Portrayal of Asian and Pacific Islanders Across 1,300 Popular Films”; she tweets @nancywyeun

Justin Chang, film critic for the Los Angeles Times and NPR’s Fresh Air; he tweets @JustinCChang

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

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A National Science Foundation-funded research has discovered the root cause of why lithium metal batteries fail -- bits of lithium metal deposits break off from the surface of the anode during discharging and are trapped as "dead" or inactive lithium that the battery can no longer access. The discovery challenges the conventional belief that lithium metal batteries fail because of the growth of a layer, called the solid electrolyte interphase (SEI), between the lithium anode and the electrolyte. The researchers made their discovery by developing a technique to measure the amounts of inactive lithium species on the anode -- a first in the field of battery research -- and studying their micro- and nanostructures. The findings could pave the way for bringing rechargeable lithium metal batteries from the lab to the market.

Image credit: University of California - San Diego

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A new study shows that the West Antarctic Peninsula is experiencing some of the most rapid climate change on Earth, featuring dramatic increases in temperatures, retreats in glaciers and declines in sea ice. The Southern Ocean absorbs nearly half of the carbon dioxide -- the key greenhouse gas linked to climate change -- that is absorbed by all the world's oceans. The study tapped an unprecedented 25 years of oceanographic measurements in the Southern Ocean and highlights the need for more monitoring in the region. The research revealed that carbon dioxide absorption by surface waters off the West Antarctic Peninsula is linked to the stability of the upper ocean, along with the amount and type of algae present. A stable upper ocean provides algae with ideal growing conditions. During photosynthesis, algae remove carbon dioxide from the surface ocean, which in turn draws carbon dioxide out of the atmosphere. From 1993 to 2017, changes in sea ice dynamics off the West Antarctic Peninsula stabilized the upper ocean, resulting in greater algal concentrations and a shift in the mix of algal species. That's led to a nearly five-fold increase in carbon dioxide absorption during the summertime. The research also found a strong north-south difference in the trend of carbon dioxide absorption. The southern portion of the peninsula, which to date has been less impacted by climate change, experienced the most dramatic increase in carbon dioxide absorption, demonstrating the poleward progression of climate change in the region.

Image credit: Drew Spacht/The Ohio State University

Robin Heilweil, 6, wears a mask while swinging around with her kindergarten class this month at Kenter Canyon School in Los Angeles.; Credit: Sarah Reingewirtz/Los Angeles Daily News/Southern California News Group via Getty Images

New research released Friday by the Centers for Disease Control and Prevention reinforces an old message: COVID-19 spreads less in schools where teachers and staff wear masks. Yet the study arrives as states and school districts across the country have begun scaling back or simply dropping their masking requirements for staff and students alike.

With the majority of school-age children still too young to qualify for vaccination, Friday's research is the latest salvo in a simmering fight between public health officials and politicians — with parents lining up on both sides.

The new study comes from Georgia and compares COVID-19 infection rates across 169 K-5 schools. Some schools required teachers, staff and sometimes students to wear masks; some did not.

Between Nov. 16 and Dec. 11, researchers found that infection rates were 37% lower in schools where teachers and staff members were required to wear masks. The difference between schools that did and did not require students to wear masks was not statistically significant.

This is one more study showing that masking, among other mitigation efforts, "can reduce infections and ultimately save lives," said Dr. Sean O'Leary, a professor of pediatrics at the University of Colorado and vice chair of the Committee on Infectious Diseases for the American Academy of Pediatrics.

O'Leary points to a previous CDC study, of schools in Florida, that also found "a strong association with student mask requirements and lower rates of infections in students."

Like any study, Friday's release comes with caveats. Only 12% of schools invited to share their data did so. And it's always worth remembering: Correlation is not causation. Still, the results offer an important warning to states and school districts that are now lifting their school-based mask requirements, especially for adults: It's safer if you don't.

The latest, and perhaps broadest effort to change schools' masking policies comes from Texas, where Republican Gov. Greg Abbott issued an executive order Tuesday banning all mask mandates in the state's public schools. After June 4, the order says, "no student, teacher, parent or other staff member or visitor may be required to wear a face covering."

For Abbott, and many opponents of mask mandates, the move is about restoring a balance between safety and freedom. "We can continue to mitigate COVID-19 while defending Texans' liberty to choose whether or not they mask up," he said in announcing the order.

Zeph Capo, president of the Texas American Federation of Teachers, called the move "unconscionable" in a statement. "The governor's new verdict takes a blanket approach to addressing what is still extremely dangerous for some Texans — a return to school unmasked."

And Texas isn't alone. On Thursday, Iowa's Republican governor, Kim Reynolds, also signed a law banning schools from requiring masks. The justification is similar: "I am proud to be a governor of a state that values personal responsibility and individual liberties," Reynolds said in a statement.

"Whether a child wears a mask in school is a decision that should be left only to a student's parents," South Carolina Gov. Henry McMaster said last week as he issued an executive order allowing parents to opt their children out of school-based mask requirements.

Public health experts have been quick to sound the alarm.

"All along in this pandemic, we have seen the tragic consequences when politics start to play a role in public health decisions. And to me, this kind of maneuver smells like politics — to ban the requirements that are ultimately there to save lives," O'Leary said. "The body of evidence shows us that masks work."

And Dr. Aaron Milstone, a professor of pediatric infectious diseases at Johns Hopkins, likens the banning of mask mandates to having a variable speed limit.

"Unfortunately, with contagious diseases the decisions I make impact someone else," Milstone said. "It would be like saying: You can drive 55 mph if you think that's safe for you, but if someone else thinks they can safely drive 90 mph, their choice may wind up risking your life."

While the CDC recently scaled back its masking guidance for people who are fully vaccinated, the agency also reiterated that schools should continue to require universal masking, at least through the end of the current school year. Though one vaccine has been approved for use for 12- to 15-year-olds, those kids won't be considered fully vaccinated for another month.

Milstone said it's simply too early to talk about schools without masking. "Until vaccines are eligible for all children, it's hard to abandon the practices that we know work the best to prevent the spread of COVID."

Dr. Anthony Fauci, chief medical adviser to the White House, told CNBC this week that it is conceivable the CDC could recommend that middle and high schools be mask-free in the fall — if, that is, enough students 12 years of age and older get vaccinated.

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.

Evidence exists that people who lived or worked at Camp Lejeune Marine Base in North Carolina between the 1950s and 1985 were exposed to the industrial solvents tricholorethylene (TCE) or perchloroethylene (PCE) in their water supply, but strong scientific evidence is not available to determine whether health problems among those exposed are due to the contaminants, says a new report from the National Research Council.

Young athletes in the U.S. face a culture of resistance to reporting when they might have a concussion and to complying with treatment plans.

While workers in the engineering technology (ET) field play an important role in supporting U.S. technical infrastructure and the country’s capacity for innovation, there is little awareness of ET as a field of study or category of employment in the U.S., says a new report from the National Academy of Engineering.

The National Academies Committee on Genetically Engineered Crops - Past Experiences and Future Prospects authored an almost 600-page landmark report, released in May 2016. It was perhaps the most comprehensive analysis of genetically engineered crops to date.

In an August 18 letter, the U.S. Department of the Interior’s Office of Surface Mining Reclamation and Enforcement informed the National Academies of Sciences, Engineering, and Medicine that it should cease all work on a study of the potential health risks for people living near surface coal mine sites in Central Appalachia.

The U.S. Department of the Interior’s Bureau of Safety and Environmental Enforcement has ordered the National Academies of Sciences, Engineering, and Medicine to suspend all work on a study to review and update the bureau’s offshore oil and gas operations inspection program to enhance safety.

To answer significant questions about planetary systems, such as whether our solar system is a rare phenomenon or if life exists on planets other than Earth, NASA should lead a large direct imaging mission – an advanced space telescope – capable of studying Earth-like exoplanets orbiting stars similar to the sun, says a new congressionally mandated report by the National Academies of Sciences, Engineering, and Medicine.

The National Academies of Sciences, Engineering, and Medicine is forming a new committee to develop a research agenda and research governance approaches for climate-intervention strategies that reflect sunlight to cool Earth.

As jurisdictions around the nation explore how to shore up their voting systems against vulnerabilities revealed by the 2016 election, Congress held a hearing yesterday to learn more about cyberthreats and options for thwarting them.

The National Academies of Sciences, Engineering, and Medicine began a study this week to provide states and school districts with guidance about whether and how to safely reopen schools.

In response to a request from the National Institutes of Health (NIH) and Centers for Disease Control and Prevention (CDC), the National Academies of Sciences, Engineering, and Medicine and the National Academy of Medicine (NAM) have formed a committee that will develop an overarching framework to assist policymakers in the U.S. and global health communities in planning for equitable allocation of vaccines against COVID-19. The committee will hold its first meeting on July 24.

The National Academies of Sciences, Engineering, and Medicine started work on a new study last month that will provide advice to policymakers, corrections officials, and public health officials on best practices for mitigating the spread of COVID-19 in correctional facilities through large-scale release and decarceration efforts.

This summer, the Gulf Research Program (GRP) of the National Academies of Sciences, Engineering, and Medicine started work on a new study that will assess how climate disasters, oil spills, and long-term environmental changes such as sea level rise are affecting environmental restoration projects in the Gulf of Mexico. The study will help fulfill one of GRP’s top goals — monitoring progress and documenting how the Gulf is changing over time.

In 1998, the National Cancer Institute undertook a review of available knowledge about cigars. A new National Academies consensus study report provides a comprehensive update to the 1998 report. Steven Teutsch, the chair of the committee that wrote the report, shared some of the report’s key findings and research recommendations to move the field forward.

The U.S. should establish a new coordinated research program to investigate the impacts of exposure to low doses of radiation on human health, says a new report estimating that $100 million in funding will be needed annually for the next 15 years to answer key research questions.

Research by Rice University Earth scientists suggests that virtually all of Earth's life-giving carbon could have come from a collision about 4.4 billion years ago between Earth and an embryonic planet similar to Mercury.

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A University of Oklahoma study demonstrates for the first time that remote sensing data from weather surveillance radar and on-the-ground data from the eBird citizen science database both yield robust indices of migration timing, also known as migration phenology. These indices can now be used to address the critical gap in our knowledge regarding the cues that migrants use for fine tuning their migration timing in response to climate.

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Oceanographers from MIT and Woods Hole Oceanographic Institution report that the northeast Pacific Ocean has absorbed an increasing amount of anthropogenic carbon dioxide over the last decade, at a rate that mirrors the increase of carbon dioxide emissions pumped into the atmosphere.

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According to a new study by scientists at Scripps Institution of Oceanography at the University of California San Diego, a large earthquake on one fault can trigger large aftershocks on separate faults within just a few minutes. These findings have important implications for earthquake hazard prone regions like California where ruptures on complex fault systems may cascade and lead to mega-earthquakes.

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A recent study shows how the public's use of parks and other green spaces in metropolitan areas can be tracked using anonymized GPS data from people's smartphones, which could help guide their management.

Researchers at the Nicholson School of Communication and Media at the University of Central Florida are investigating how students view teachers who use artificial intelligence, and to make it more utility-driven by simplifying it.

Crucial for CIOs and CISOs to stay informed and proactive in the face of the evolving threats, reveals a study made exclusively available to ETCISO.

A study, by San Diego Zoo Global conservationists, released this week (Sept. 12, 2016) is shedding new light on how scientists evaluate polar bear diet and weight loss during their fasting season. On average, a polar bear loses up to 30 percent of its total body mass while fasting during the open-water season. Although some scientists previously believed land-based foods could supplement the bears' nutritional needs until the sea ice returns, a new study published in the scientific journal Physiological and Biochemical Zoology has revealed that access to terrestrial food is not sufficient to reduce the rate of body mass loss for fasting polar bears.

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A BT One Enterprise Cisco solution makes voice calls between the UK and India simple and immediate. In most cases they’re free of charge too. Best of all, the employees feel as one with the BT global team.

SASOL has adopted telepresence for collaboration between far-flung executives in Europe, North America and Africa. Running over the BT IP Connect global network it also enables federation with customers and suppliers. The solution’s earned Alec’s team a special recognition award from the CEO for bringing the company’s One SASOL philosophy and vision vibrantly to life

Care isn’t just part of the name at GSK Nutritional Healthcare. It’s at the heart of its customer help lines. But Ashley Thomas knew that the company’s legacy telephone technology was becoming a bit of a hindrance. Keen to boost customer service with new technology, a review of the market led Ashley to BT Cloud Contact

An infrastructure offering high levels of quality and flexibility was required as a platform for a new system. Buying or renting new servers – and connecting and configuring them in short timescales – would be an expensive and challenging task. The IMV technical team turned to BT and asked whether it would be possible to set up the system in a virtual environment .

Tesco, one of the world’s largest retailers, is using the BT Cloud Contact solution to give its UK customers an enhanced, more flexible and more responsive contact centre service.

For the first time, researchers from the Wellcome Trust Sanger Institute and their collaborators have been able to identify in human cancers two characteristic patterns of DNA damage caused by ionising radiation. These fingerprint patterns may now enable doctors to identify which tumours have been caused by radiation, and investigate if they should be treated differently.

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Study Links Altered Brain Chemistry, Behavioral Impairments in Fish Exposed to Elevated CO2 Research team studied damselfish behavior and physiology under ocean acidification conditions predicted for year 2300

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