Analysis of small-angle scattering (SAS) data requires intensive modeling to infer and characterize the structures present in a sample. This iterative improvement of models is a time-consuming process. Presented here is Scattering Equation Builder (SEB), a C++ library that derives exact analytic expressions for the form factors of complex composite structures. The user writes a small program that specifies how the sub-units should be linked to form a composite structure and calls SEB to obtain an expression for the form factor. SEB supports e.g. Gaussian polymer chains and loops, thin rods and circles, solid spheres, spherical shells and cylinders, and many different options for how these can be linked together. The formalism behind SEB is presented and simple case studies are given, such as block copolymers with different types of linkage, as well as more complex examples, such as a random walk model of 100 linked sub-units, dendrimers, polymers and rods attached to the surfaces of geometric objects, and finally the scattering from a linear chain of five stars, where each star is built up of four diblock copolymers. These examples illustrate how SEB can be used to develop complex models and hence reduce the cost of analyzing SAS data.

This article describes a correction procedure for the removal of indirect background contributions to measured small-angle X-ray scattering patterns. The high scattering power of a sample in the ultra-small-angle region may serve as a secondary source for a window placed in front of the detector. The resulting secondary scattering appears as a sample-dependent background in the measured pattern that cannot be directly subtracted. This is an intricate problem in measurements at ultra-low angles, which can significantly reduce the useful dynamic range of detection. Two different procedures are presented to retrieve the real scattering profile of the sample.

Macromolecular crystallography contributes significantly to understanding diseases and, more importantly, how to treat them by providing atomic resolution 3D structures of proteins. This is achieved by collecting X-ray diffraction images of protein crystals from important biological pathways. Spotfinders are used to detect the presence of crystals with usable data, and the spots from such crystals are the primary data used to solve the relevant structures. Having fast and accurate spot finding is essential, but recent advances in synchrotron beamlines used to generate X-ray diffraction images have brought us to the limits of what the best existing spotfinders can do. This bottleneck must be removed so spotfinder software can keep pace with the X-ray beamline hardware improvements and be able to see the weak or diffuse spots required to solve the most challenging problems encountered when working with diffraction images. In this paper, we first present Bragg Spot Detection (BSD), a large benchmark Bragg spot image dataset that contains 304 images with more than 66 000 spots. We then discuss the open source extensible U-Net-based spotfinder Bragg Spot Finder (BSF), with image pre-processing, a U-Net segmentation backbone, and post-processing that includes artifact removal and watershed segmentation. Finally, we perform experiments on the BSD benchmark and obtain results that are (in terms of accuracy) comparable to or better than those obtained with two popular spotfinder software packages (Dozor and DIALS), demonstrating that this is an appropriate framework to support future extensions and improvements.

The pair angle distribution function (PADF) is a three- and four-atom correlation function that characterizes the local angular structure of disordered materials, particles or nanocrystalline materials. The PADF can be measured using X-ray or electron fluctuation diffraction data, which can be collected by scanning or flowing a structurally disordered sample through a focused beam. It is a natural generalization of established pair distribution methods, which do not provide angular information. The software package pypadf provides tools to calculate the PADF from fluctuation diffraction data. The package includes tools for calculating the intensity correlation function, which is a necessary step in the PADF calculation and also the basis for other fluctuation scattering analysis techniques.

The capillary wave model of a liquid surface predicts both the X-ray specular reflection and the diffuse scattering around it. A quantitative method is presented to obtain the X-ray reflectivity (XRR) from a liquid surface through the diffuse scattering data around the specular reflection measured using a grazing incidence X-ray off-specular scattering (GIXOS) geometry at a fixed horizontal offset angle with respect to the plane of incidence. With this approach the entire Qz-dependent reflectivity profile can be obtained at a single, fixed incident angle. This permits a much faster acquisition of the profile than with conventional reflectometry, where the incident angle must be scanned point by point to obtain a Qz-dependent profile. The XRR derived from the GIXOS-measured diffuse scattering, referred to in this paper as pseudo-reflectivity, provides a larger Qz range compared with the reflectivity measured by conventional reflectometry. Transforming the GIXOS-measured diffuse scattering profile to pseudo-XRR opens up the GIXOS method to widely available specular XRR analysis software tools. Here the GIXOS-derived pseudo-XRR is compared with the XRR measured by specular reflectometry from two simple vapor–liquid interfaces at different surface tension, and from a hexadecyltri­methyl­ammonium bromide monolayer on a water surface. For the simple liquids, excellent agreement (beyond 11 orders of magnitude in signal) is found between the two methods, supporting the approach of using GIXOS-measured diffuse scattering to derive reflectivities. Pseudo-XRR obtained at different horizontal offset angles with respect to the plane of incidence yields indistinguishable results, and this supports the robustness of the GIXOS-XRR approach. The pseudo-XRR method can be extended to soft thin films on a liquid surface, and criteria are established for the applicability of the approach.

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 spatial orientation of α lamellae in a metastable β-Ti matrix of Timetal LCB (Ti–6.8 Mo–4.5 Fe–1.5 Al in wt%) was examined and the orientation of the hexagonal close-packed α lattice in the α lamella was determined. For this purpose, a combination of methods of small-angle X-ray scattering, scanning electron microscopy and electron backscatter diffraction was used. The habit planes of α laths are close to {111}β, which corresponds to (1320)α in the hexagonal coordinate system of the α phase. The longest α lamella direction lies approximately along one of the 〈110〉β directions which are parallel to the specific habit plane. Taking into account the average lattice parameters of the β and α phases in aged conditions in Timetal LCB, it was possible to index all main axes and faces of an α lath not only in the cubic coordinate system of the parent β phase but also in the hexagonal system of the α phase.

Small-angle scattering (SAS) is a key experimental technique for analyzing nanoscale structures in various materials. In SAS data analysis, selecting an appropriate mathematical model for the scattering intensity is critical, as it generates a hypothesis of the structure of the experimental sample. Traditional model selection methods either rely on qualitative approaches or are prone to overfitting. This paper introduces an analytical method that applies Bayesian model selection to SAS measurement data, enabling a quantitative evaluation of the validity of mathematical models. The performance of the method is assessed through numerical experiments using artificial data for multicomponent spherical materials, demonstrating that this proposed analysis approach yields highly accurate and interpretable results. The ability of the method to analyze a range of mixing ratios and particle size ratios for mixed components is also discussed, along with its precision in model evaluation by the degree of fitting. The proposed method effectively facilitates quantitative analysis of nanoscale sample structures in SAS, which has traditionally been challenging, and is expected to contribute significantly to advancements in a wide range of fields.

A deep-learning algorithm is proposed for the inpainting of Bragg coherent diffraction imaging (BCDI) patterns affected by detector gaps. These regions of missing intensity can compromise the accuracy of reconstruction algorithms, inducing artefacts in the final result. It is thus desirable to restore the intensity in these regions in order to ensure more reliable reconstructions. The key aspect of the method lies in the choice of training the neural network with cropped sections of diffraction data and subsequently patching the predictions generated by the model along the gap, thus completing the full diffraction peak. This approach enables access to a greater amount of experimental data for training and offers the ability to average overlapping sections during patching. As a result, it produces robust and dependable predictions for experimental data arrays of any size. It is shown that the method is able to remove gap-induced artefacts on the reconstructed objects for both simulated and experimental data, which becomes essential in the case of high-resolution BCDI experiments.

Using the well known Rn ratio method, a protocol has been elaborated for determining the lattice direction for the 15 most common cubic zone axis spot patterns. The method makes use of the lengths of the three shortest reciprocal-lattice vectors in each pattern and the angles between them. No prior pattern calibration is required for the method to work, as the Rn ratio method is based entirely on geometric relationships. In the first step the pattern is assigned to one of three possible pattern types according to the angles that are measured between the three reciprocal-lattice vectors. The lattice direction [uvw] and possible Bravais type(s) and Laue indices of the corresponding reflections can then be determined by using lookup tables. In addition to determining the lattice direction, this simple geometric analysis allows one to distinguish between the P, I and F Bravais lattices for spot patterns aligned along [013], [112], [114] and [233]. Moreover, the F lattice can always be uniquely identified from the [011] and [123] patterns.

Small-angle X-ray and neutron scattering (SAXS and SANS) patterns from certain semicrystalline polymers and liquid crystals contain discrete reflections from ordered assemblies and central diffuse scattering (CDS) from uncorrelated structures. Systems with imperfectly ordered lamellar structures aligned by stretching or by a magnetic field produce four distinct SAXS patterns: two-point `banana', four-point pattern, four-point `eyebrow' and four-point `butterfly'. The peak intensities of the reflections lie not on a layer line, or the arc of a circle, but on an elliptical trajectory. Modeling shows that randomly placed lamellar stacks modified by chain slip and stack rotation or interlamellar shear can create these forms. On deformation, the isotropic CDS becomes an equatorial streak with an oval, diamond or two-bladed propeller shape, which can be analyzed by separation into isotropic and oriented components. The streak has elliptical intensity contours, a natural consequence of the imperfect alignment of the elongated scattering objects. Both equatorial streaks and two- and four-point reflections can be fitted in elliptical coordinates with relatively few parameters. Equatorial streaks can be analyzed to obtain the size and orientation of voids, fibrils or surfaces. Analyses of the lamellar reflection yield lamellar spacing, stack orientation (interlamellar shear) angle α and chain slip angle ϕ, as well as the size distribution of the lamellar stacks. Currently available computational tools allow these microstructural parameters to be rapidly refined.

Unlike most of the periodic table, many rare-earth elements display considerable resonant scattering for thermal neutrons. Although this property is accompanied by strong neutron absorption, modern high-intensity neutron sources make diffraction experiments possible with these elements. Computation of scattering intensities is accomplished by fitting the variation in resonant scattering lengths (b0, b' and b'') to a semi-empirical Breit–Wigner formalism, which can be evaluated over the range of neutron energies useful for diffraction, typically E = 10–600 meV; λ = 0.4–2.8 Å (with good extrapolation to longer wavelengths).

Structural modelling of operando pair distribution function (PDF) data of complex functional materials can be highly challenging. To aid the understanding of complex operando PDF data, this article demonstrates a toolbox for PDF analysis. The tools include denoising using principal component analysis together with the structureMining, similarityMapping and nmfMapping apps available through the online service `PDF in the cloud' (PDFitc, https://pdfitc.org/). The toolbox is used for both ex situ and operando PDF data for 3 nm TiO2-bronze nanocrystals, which function as the active electrode material in a Li-ion battery. The tools enable structural modelling of the ex situ and operando PDF data, revealing two pristine TiO2 phases (bronze and anatase) and two lithiated LixTiO2 phases (lithiated versions of bronze and anatase), and the phase evolution during galvanostatic cycling is characterized.

The Q resolution in Bonse–Hart double-crystal diffractometers is determined for a given Bragg angle by the value of the crystallographic structure factor. To date, the reflections Si 220 or Si 111 have been used exclusively in neutron scattering, which provide resolutions for triple-bounce crystals of about 2 × 10−5 Å−1 (FWHM). The Darwin width of the GaAs 200 reflection is about a factor of 10 smaller, offering the possibility of a Q resolution of 2 × 10−6 Å−1 provided crystals of sufficient quality are available. This article reports a feasibility study with single-bounce GaAs 200, yielding a Q resolution of 4.6 × 10−6 Å−1, six times superior in comparison with a Si 220 setup.

Small-angle neutron scattering is a widely used technique to study large-scale structures in bulk samples. The largest accessible length scale in conventional Bragg scattering is determined by the combination of the longest available neutron wavelength and smallest resolvable scattering angle. A method is presented that circumvents this limitation and is able to extract larger length scales from the low-q power-law scattering using a modification of the well known Porod law connecting the scattered intensity of randomly distributed objects to their specific surface area. It is shown that in the special case of a highly aligned domain structure the specific surface area extracted from the modified Porod law can be used to determine specific length scales of the domain structure. The analysis method is applied to study the micrometre-sized domain structure found in the intermediate mixed state of the superconductor niobium. The analysis approach allows the range of accessible length scales to be extended from 1 µm to up to 40 µm using a conventional small-angle neutron scattering setup.

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.

Presented here is an effective approach to desmearing slit ultra-small-angle neutron scattering (USANS) data, based on complementary small-angle neutron scattering (SANS) measurements, leading to a seamless merging of these data sets. The study focuses on the methodological aspects of desmearing USANS data, which can then be presented in the conventional manner of SANS, enabling a broader pool of data analysis methods. The key innovation lies in the use of smeared SANS data for extrapolating slit USANS, offering a self-consistent integrand function for desmearing with Lake's iterative method. The proposed approach is validated through experimental data on porous anodized aluminium oxide membranes, showcasing its applicability and benefits. The findings emphasize the importance of accurate desmearing for merging USANS and SANS data in the crossover q region, which is particularly crucial for complex scattering patterns.

In synchrotron X-ray radiography, achieving high image resolution and an optimal signal-to-noise ratio (SNR) is crucial for the subsequent accurate image analysis. Traditional methods often struggle to balance these two parameters, especially in situ applications where rapid data acquisition is essential to capture specific dynamic processes. For quantitative image data analysis, using monochromatic X-rays is essential. A double multilayer monochromator (DMM) is successfully used for this aim at the BAMline, BESSY II (Helmholtz Zentrum Berlin, Germany). However, such DMMs are prone to producing an unstable horizontal stripe pattern. Such an unstable pattern renders proper signal normalization difficult and thereby causes a reduction of the SNR. We introduce a novel approach to enhance SNR while preserving resolution: dynamic tilting of the DMM. By adjusting the orientation of the DMM during the acquisition of radiographic projections, we optimize the X-ray imaging quality, thereby enhancing the SNR. The corresponding shift of the projection during this movement is corrected in post-processing. The latter correction allows a good resolution to be preserved. This dynamic tilting technique enables the homogenization of the beam profile and thereby effectively reduces noise while maintaining high resolution. We demonstrate that data captured using this proposed technique can be seamlessly integrated into the existing radiographic data workflow, as it does not need hardware modifications to classical X-ray imaging beamline setups. This facilitates further image analysis and processing using established methods.

The design and first results of a high-transmission soft X-ray spectrometer operated at the X-SPEC double-undulator beamline of the KIT Light Source are presented. As a unique feature, particular emphasis was placed on optimizing the spectrometer transmission by maximizing the solid angle and the efficiencies of spectrometer gratings and detector. A CMOS detector, optimized for soft X-rays, allows for quantum efficiencies of 90% or above over the full energy range of the spectrometer, while simultaneously offering short readout times. Combining an optimized control system at the X-SPEC beamline with continuous energy scans (as opposed to step scans), the high transmission of the spectrometer, and the fast readout of the CMOS camera, enable the collection of entire rapid resonant inelastic soft X-ray scattering maps in less than 1 min. Series of spectra at a fixed energy can be taken with a frequency of up to 5 Hz. Furthermore, the use of higher-order reflections allows a very wide energy range (45 to 2000 eV) to be covered with only two blazed gratings, while keeping the efficiency high and the resolving power E/ΔE above 1500 and 3000 with low- and high-energy gratings, respectively.

The UAE has announced the introduction of 'Palm ID' technology, a payment solution that utilises the unique vein patterns in individuals' palms for...

The finale of the 2013 Americana Music Association Honors and Awards show.; Credit: Folk Alley

The 2014 Americana Music Awards are Wednesday at 5 p.m. Pacific/8 p.m. Eastern. You can watch the full show live from the Ryman Auditorium in Nashville, Tenn. below, including performances by Loretta Lynn, Jackson Browne, Emmylou Harris, Patty Griffin and more.

Read a full list of the nominees below:

Album of the Year

• Build Me Up From Bones by Sarah Jarosz
• The Lights From The Chemical Plant by Robert Ellis
• The River And The Thread by Rosanne Cash
• Southeastern by Jason Isbell

Artist of the Year

• Rosanne Cash
• Rodney Crowell
• Robert Ellis
• Jason Isbell

Duo/Group of the Year

• The Avett Brothers
• The Devil Makes Three
• Hard Working Americans
• Lake Street Dive
• The Milk Carton Kids

Song of the Year

• "Cover Me Up" by Jason Isbell
• "A Feather's Not A Bird" by Rosanne Cash
• "Ohio" by Patty Griffin
• "Only Lies" by Robert Ellis

Emerging Act of the Year

• Hurray For The Riff Raff
• Parker Millsap
• St. Paul & The Broken Bones

Keyshia Cole performs during the 4th annual BET Honors at the Warner Theatre on Jan. 15, 2011 in Washington, DC.; Credit: Kris Connor/Getty Images

Police say Grammy-nominated R&B singer Keyshia Cole has been arrested on suspicion of battery after an altercation early Friday morning in Los Angeles.

Los Angeles police officer Nuria Vanegas says Cole was arrested around 5 a.m. after someone initiated a private person's arrest. The 32-year-old was booked on suspicion of battery and released from custody Friday afternoon.

Police did not release any further details about the incident.

An email message sent to Cole's publicist was not immediately returned.

Cole's second album, 2007's "Just Like You," produced the songs "Let It Go," ''I Remember" and "Heaven Sent."

Full Text:

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

The United States Environmental Planning Agency (USEPA) has announced that Catawba County will be classified as �attainment� from its current �nonattainment� designation for Particulate Matter 2.5 (PM 2.5) on December 19, 2011. PM 2.5 (fine particle pollution) refers to tiny particles of droplets in the air that are two and one half microns or less in width. Two and one half microns is about thirty times smaller than the width of a human hair.

Catawba County Attorney Debra Bechtel has been named County Attorney of the Year by the North Carolina County Association of County Attorneys. Bechtel was recognized for her service to Catawba County and for her service to the association and local governments across the state.

D.C. Attorney General Karl Racine, pictured in 2019, is hoping to change how the justice system handles cases involving 16- and 17-year-olds who are charged as adults.; Credit: Claire Harbage/NPR

A new proposal from D.C. Attorney General Karl Racine could overhaul the way juveniles are charged as adults and offer greater opportunities for rehabilitation than a federal prison.

If passed, the proposal would impact people like Charlie Curtis, who was charged with armed robbery and sent to adult court at the age of 16 — a decision that he said left him confused and adrift.

Curtis said he had problems reading and writing back then, let alone asking the court to appoint him a lawyer. After his conviction, he spent years in a federal prison in New Jersey.

"It's a little bit of everything," Curtis said. "A little scary, a little nervous, you got to grow up real fast. You're not in the high school gym no more."

Curtis returned home when he was 22. It would be a while before he stabilized, got a good job driving a truck and started a family that grew to include three children. He now volunteers to help other young people leaving jail and prison — trying to offer the support he got too late.

What the legislation would change

NPR has learned Racine will introduce legislation in the D.C. Council Wednesday to ensure that 16- and 17-year-olds accused of certain crimes start in the family court system.

"Children should be treated like children, including 16- and 17-year-olds, notwithstanding the seriousness of their alleged offense," Racine said.

The proposed legislation would apply to teens charged with murder, first-degree sexual abuse, and armed robbery, among other crimes. Currently, the lead federal prosecutor in D.C. can file those kinds of cases directly in adult court — without any say from a judge — even if those defendants ultimately plead guilty to lesser charges.

D.C. has no federal prisons of its own, so young people convicted as adults can spend years in other states, at great distances from their families. The D.C. attorney general said the majority of underaged defendants charged as adults return home to the District before they are 21, but without the benefit of access to educational programs, vocational training and mentoring they could have received if their cases had been handled in the family courts.

"The adult system doesn't work that way," Racine said. "Federal Bureau of Prisons people will tell you the adult system is not made for kids."

Eduardo Ferrer, the policy director at the Georgetown Juvenile Justice Initiative, said research demonstrates charging young people in the adult system decreases public safety by making it more likely they'll break the law in the future. Most charging decisions in these cases in D.C. are made within a half a day, without the benefit of a longer review of the facts of the case and the background of the teenager, he said.

"The process in D.C. right now, because the U.S. Attorney's Office does not exercise discretion often in terms of keeping kids down in juvenile court, is more of a sledgehammer," Ferrer said. "What we really need is a scalpel."

The U.S. Attorney's Office in Washington and the Metropolitan Police Department did not return calls for comment about the proposal. But its supporters expect some resistance when it's ultimately considered by the City Council.

Ferrer pointed out that the legislation still leaves room for a judge to transfer a young person in D.C. into adult court if the judge has concerns about the ability for rehabilitation and worries about public safety. "The reality is that a young person still can be transferred to adult court," he said. "The difference is we're taking the time to get it right."

The potential impact

The vast majority — 93% — of the 16- and 17-year-olds who are charged as adults in D.C. are Black. One of them is the son of Keela Hailes. In 2008, he was charged with armed robbery. Hailes said she wasn't consulted about decisions about what was best for her son.

"It's like my son went from a 16-year-old to a 30-year-old overnight," Hailes said.

Her son was convicted and sent to federal prison in North Dakota, too far for her to visit regularly as she had done in the D.C. area. Her son, now 30 years old, is incarcerated again. Hailes said she wishes he would have had more options years ago — a chance for an education, and time spent in a juvenile facility instead of around adults in prison.

She said science suggests young people have less judgment and maturity because their brains are still developing. She thinks the new proposal will make a "huge difference" for juveniles in the legal system in the District.

The proposal is the latest in a series of steps Racine has taken to overhaul juvenile justice in D.C. He pushed the courts to stop shackling young defendants; started a restorative justice program for juveniles to meet with and make amends to victims; and worked to limit the ability of police to put handcuffs on most people under age 12.

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

Focused attention by world leaders is needed to address the substantial challenges posed by disposal of spent nuclear fuel from reactors and high-level radioactive waste from processing such fuel for military or energy purposes.

Representatives from academies and research organizations around the world sent messages of condolence and support to members, officials and staff of the U.S. National Academies in the wake of terrorist attacks on the World Trade Center and the Pentagon. The following are excerpts from some of these messages.

Every year, approximately 100 million* adult Americans experience chronic pain, a condition that costs the nation between $560 billion and $635 billion annually, says a new report from the Institute of Medicine.

The U.S. electric power delivery system is vulnerable to terrorist attacks that could cause much more damage to the system than natural disasters such as Hurricane Sandy, blacking out large regions of the country for weeks or months and costing many billions of dollars, says a newly released report by the National Research Council.

It is now possible to estimate the influence of climate change on some types of extreme events, such as heat waves, drought, and heavy precipitation, says a new report from the National Academies of Sciences, Engineering, and Medicine.

The U.S. Department of Health and Human Services (HHS) should lead efforts among federal partners and stakeholders to design, implement, and evaluate a multipronged, evidence-based national strategy to reduce stigma toward people with mental and substance use disorders, says a new report from the National Academies of Sciences, Engineering, and Medicine.

U.S. adults perform comparably to adults in other economically developed countries on most measures of science knowledge and support science in general, says a new report from the National Academies of Sciences, Engineering, and Medicine.

Higher education leaders, policymakers, and the private sector should take a range of actions to strengthen STEM programs and degree attainment in the nation’s Minority Serving Institutions (MSIs), says a new report from the National Academies of Sciences, Engineering, and Medicine.

U.S. colleges and universities should take a more intentional, inclusive, and evidence-based approach to mentoring students in STEMM (science, technology, engineering, mathematics, and medicine) – a shift that could engage and help retain a broader group of students in these fields, says a new report from the National Academies of Sciences, Engineering, and Medicine.

While video games often give us a way to explore other worlds, they can also help us learn more about our own — including how to navigate a pandemic. That was the premise underlying “Jamming the Curve,” a competition that enlisted over 400 independent video game developers around the world to develop concepts for games that reflect the real-world dynamics of COVID-19.

Learning experiences in computing that are designed with attention to K-12 students’ interests, identities, and backgrounds may attract underrepresented groups to computing better than learning experiences that mimic current professional computing practices and culture do, says a new report from the National Academies of Sciences, Engineering, and Medicine.

In addition to jet propellant 8 (JP8), the U.S. Army should incorporate the use of diesel and renewable biodiesel as the primary sources of energy brought to the battlefield through 2035 to maximize warfighting capabilities, says a new report from the National Academies of Sciences, Engineering, and Medicine.

The National Academies’ Committee on Human Rights issued a statement expressing concern at reports of indiscriminate military attacks in Ukraine that have included health facilities, and supported global calls to respect and protect access to health care in Ukraine, and in all conflict setting

Overall cigar consumption has increased since the 1990s, but there is limited research on “premium” cigars. A new report examines the short- and long-term health effects of premium cigars, who is using them and how often, and marketing practices and consumer perceptions.

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.

Strengthening and expanding critical safety net programs is necessary to address the COVID-19 pandemic’s effects on children and families, says a new report that examines the substantial toll the pandemic has taken on their health and well-being, especially those in marginalized communities.

This week, ESET experts released several research publications that shine the spotlight on a number of notable campaigns and broader developments on the threat landscape

As the UK mulls new rules for ransomware disclosure, what would be the wider implications of such a move, how would cyber-insurance come into play, and how might cybercriminals respond?

The widespread IT outages triggered by a faulty CrowdStrike update have put software updates in the spotlight. Here’s why you shouldn’t dread them.

Attributing a cyberattack to a specific threat actor is a complex affair, as evidenced by new ESET research published this week

Ever alert to fresh money-making opportunities, fraudsters are blending physical and digital threats to steal drivers’ payment details

Jiro's Pick this week is Home Battery Energy Management System by Rodney Tan.I met Dr. Rodney Tan at a virtual educator workshop we held last year, and there I learned that he is very active in the... read more >>

Meta has been designing prototypes for chatbots that can have humanlike discussions with its users, as the company attempts to boost its engagement with its social media platforms, according to the report, citing people with knowledge of the plans.

PITTSBURGH (September 2, 2016) ... The potential to develop "materials that compute" has taken another leap at the University of Pittsburgh's Swanson School of Engineering, where researchers for the first time have demonstrated that the material can be designed to recognize simple patterns. This responsive, hybrid material, powered by its own chemical reactions, could one day be integrated into clothing and used to monitor the human body, or developed as a skin for "squishy" robots.

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