The maximum range of perpendicular momentum transfer (qz) has been tripled for X-ray scattering from liquid surfaces when using a double-crystal deflector setup to tilt the incident X-ray beam. This is achieved by employing a higher-energy X-ray beam to access Miller indices of reflecting crystal atomic planes that are three times higher than usual. The deviation from the exact Bragg angle condition induced by misalignment between the X-ray beam axis and the main rotation axis of the double-crystal deflector is calculated, and a fast and straightforward procedure to align them is deduced. An experimental method of measuring scattering intensity along the qz direction on liquid surfaces up to qz = 7 Å−1 is presented, with liquid copper serving as a reference system for benchmarking purposes.

Fluctuation X-ray scattering (FXS) offers a complementary approach for nano- and bioparticle imaging with an X-ray free-electron laser (XFEL), by extracting structural information from correlations in scattered XFEL pulses. Here a workflow is presented for single-particle structure determination using FXS. The workflow includes procedures for extracting the rotational invariants from FXS patterns, performing structure reconstructions via iterative phasing of the invariants, and aligning and averaging multiple reconstructions. The reconstruction pipeline is implemented in the open-source software xFrame and its functionality is demonstrated on several simulated structures.

Three-dimensional cryo electron microscopy reconstructions are obtained by extracting information from a large number of projections of the object. These projections correspond to different `views' or `orientations', i.e. directions in which these projections show the reconstructed object. Uneven distribution of these views and the presence of dominating preferred orientations may distort the reconstructed spatial images. This work describes the program VUE (views on uniform grids for cryo electron microscopy), designed to study such distributions. Its algorithms, based on uniform virtual grids on a sphere, allow an easy calculation and accurate quantitative analysis of the frequency distribution of the views. The key computational element is the Lambert azimuthal equal-area projection of a spherical uniform grid onto a disc. This projection keeps the surface area constant and represents the frequency distribution with no visual bias. Since it has multiple tunable parameters, the program is easily adaptable to individual needs, and to the features of a particular project or of the figure to be produced. It can help identify problems related to an uneven distribution of views. Optionally, it can modify the list of projections, distributing the views more uniformly. The program can also be used as a teaching tool.

Polymer-derived ceramics (PDCs) remain at the forefront of research for a variety of applications including ultra-high-temperature ceramics, energy storage and functional coatings. Despite their wide use, questions remain about the complex structural transition from polymer to ceramic and how local structure influences the final microstructure and resulting properties. This is further complicated when nanofillers are introduced to tailor structural and functional properties, as nanoparticle surfaces can interact with the matrix and influence the resulting structure. The inclusion of crystalline nanofiller produces a mixed crystalline–amorphous composite, which poses characterization challenges. With this study, we aim to address these challenges with a local-scale structural study that probes changes in a polysiloxane matrix with incorporated copper nanofiller. Composites were processed at three unique temperatures to capture mixing, pyrolysis and initial crystallization stages for the pre-ceramic polymer. We observed the evolution of the nanofiller with electron microscopy and applied synchrotron X-ray diffraction with differential pair distribution function (d-PDF) analysis to monitor changes in the matrix's local structure and interactions with the nanofiller. The application of the d-PDF to PDC materials is novel and informs future studies to understand interfacial interactions between nanofiller and matrix throughout PDC processing.

Neutron spectroscopy uniquely and non-destructively accesses diffusive dynamics in soft and biological matter, including for instance proteins in hydrated powders or in solution, and more generally dynamic properties of condensed matter on the molecular level. Given the limited neutron flux resulting in long counting times, it is important to optimize data acquisition for the specific question, in particular for time-resolved (kinetic) studies. The required acquisition time was recently significantly reduced by measurements of discrete energy transfers rather than quasi-continuous neutron scattering spectra on neutron backscattering spectrometers. Besides this reduction in acquisition times, smaller amounts of samples can be measured with better statistics, and most importantly, kinetically changing samples, such as aggregating or crystallizing samples, can be followed. However, given the small number of discrete energy transfers probed in this mode, established analysis frameworks for full spectra can break down. Presented here are new approaches to analyze measurements of diffusive dynamics recorded within fixed windows in energy transfer, and these are compared with the analysis of full spectra. The new approaches are tested by both modeled scattering functions and a comparative analysis of fixed energy window data and full spectra on well understood reference samples. This new approach can be employed successfully for kinetic studies of the dynamics focusing on the short-time apparent center-of-mass diffusion.

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.

Presented and discussed here is the implementation of a software solution that provides prompt X-ray diffraction data analysis during fast dynamic compression experiments conducted within the dynamic diamond anvil cell technique. It includes efficient data collection, streaming of data and metadata to a high-performance cluster (HPC), fast azimuthal data integration on the cluster, and tools for controlling the data processing steps and visualizing the data using the DIOPTAS software package. This data processing pipeline is invaluable for a great number of studies. The potential of the pipeline is illustrated with two examples of data collected on ammonia–water mixtures and multiphase mineral assemblies under high pressure. The pipeline is designed to be generic in nature and could be readily adapted to provide rapid feedback for many other X-ray diffraction techniques, e.g. large-volume press studies, in situ stress/strain studies, phase transformation studies, chemical reactions studied with high-resolution diffraction etc.

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.

With the emergence of ultrafast X-ray sources, interest in following fast processes in small molecules and macromolecules has increased. Most of the current research into ultrafast structural dynamics of macromolecules uses X-ray free-electron lasers. In parallel, small-scale laboratory-based laser-driven ultrafast X-ray sources are emerging. Continuous development of these sources is underway, and as a result many exciting applications are being reported. However, because of their low flux, such sources are not commonly used to study the structural dynamics of macromolecules. This article examines the feasibility of time-resolved powder diffraction of macromolecular microcrystals using a laboratory-scale laser-driven ultrafast X-ray source.

High-energy X-ray diffraction methods can non-destructively map the 3D microstructure and associated attributes of metallic polycrystalline engineering materials in their bulk form. These methods are often combined with external stimuli such as thermo-mechanical loading to take snapshots of the evolving microstructure and attributes over time. However, the extreme data volumes and the high costs of traditional data acquisition and reduction approaches pose a barrier to quickly extracting actionable insights and improving the temporal resolution of these snapshots. This article presents a fully automated technique capable of rapidly detecting the onset of plasticity in high-energy X-ray microscopy data. The technique is computationally faster by at least 50 times than the traditional approaches and works for data sets that are up to nine times sparser than a full data set. This new technique leverages self-supervised image representation learning and clustering to transform massive data sets into compact, semantic-rich representations of visually salient characteristics (e.g. peak shapes). These characteristics can rapidly indicate anomalous events, such as changes in diffraction peak shapes. It is anticipated that this technique will provide just-in-time actionable information to drive smarter experiments that effectively deploy multi-modal X-ray diffraction methods spanning many decades of length scales.

Coherent diffractive imaging with X-ray free-electron lasers could enable structural studies of macromolecules at room temperature. This type of experiment could provide a means to study structural dynamics on the femtosecond timescale. However, the diffraction from a single protein is weak compared with the incoherent scattering from background sources, which negatively affects the reconstruction analysis. This work evaluates the effects of the presence of background on the analysis pipeline. Background measurements from the European X-ray Free-Electron Laser were combined with simulated diffraction patterns and treated by a standard reconstruction procedure, including orientation recovery with the expand, maximize and compress algorithm and 3D phase retrieval. Background scattering did have an adverse effect on the estimated resolution of the reconstructed density maps. Still, the reconstructions generally worked when the signal-to-background ratio was 0.6 or better, in the momentum transfer shell of the highest reconstructed resolution. The results also suggest that the signal-to-background requirement increases at higher resolution. This study gives an indication of what is possible at current setups at X-ray free-electron lasers with regards to expected background strength and establishes a target for experimental optimization of the background.

This article demonstrates the feasibility of obtaining accurate pair distribution functions of thin amorphous films down to 80 nm, using modern laboratory-based X-ray sources. The pair distribution functions are obtained using a single diffraction scan without the requirement of additional scans of the substrate or of the air. By using a crystalline substrate combined with an oblique scattering geometry, most of the Bragg scattering of the substrate is avoided, rendering the substrate Compton scattering the primary contribution. By utilizing a discriminating energy filter, available in the latest generation of modern detectors, it is demonstrated that the Compton intensity can further be reduced to negligible levels at higher wavevector values. Scattering from the sample holder and the air is minimized by the systematic selection of pixels in the detector image based on the projected detection footprint of the sample and the use of a 3D-printed sample holder. Finally, X-ray optical effects in the absorption factors and the ratios between the Compton intensity of the substrate and film are taken into account by using a theoretical tool that simulates the electric field inside the film and the substrate, which aids in planning both the sample design and the measurement protocol.

High-pressure crystallographic data can be measured using a diamond anvil cell (DAC), which allows the sample to be viewed only along a cell vector which runs perpendicular to the diamond anvils. Although centring a sample perpendicular to this direction is straightforward, methods for centring along this direction often rely on sample focusing, measurements of the direct beam or short data collections followed by refinement of the crystal offsets. These methods may be inaccurate, difficult to apply or slow. Described here is a method based on precise measurement of the offset in this direction using a confocal optical device, whereby the cell centre is located at the mid-point of two measurements of the distance between a light source and the external faces of the diamond anvils viewed along the forward and reverse directions of the cell vector. It is shown that the method enables a DAC to be centred to within a few micrometres reproducibly and quickly.

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.

A neutron time-of-flight (TOF) powder diffractometer with a continuous wide-angle array of detectors can be electronically focused to make a single pseudo-constant wavelength diffraction pattern, thus facilitating angle-dependent intensity corrections. The resulting powder diffraction peak profiles are affected by the neutron source emission profile and resemble the function currently used for TOF diffraction.

Using a 5 µm-diameter X-ray beam, we collected scanning X-ray microdiffraction in both the small-angle (SAXS) and the wide-angle (WAXS) regimes from thin sections of fixed human brain tissue from Alzheimer's subjects. The intensity of scattering in the SAXS regime of these patterns exhibits essentially no correlation with the observed intensity in the WAXS regime, indicating that the structures responsible for these two portions of the diffraction patterns, which reflect different length scales, are distinct. SAXS scattering exhibits a power-law behavior in which the log of intensity decreases linearly with the log of the scattering angle. The slope of the log–log curve is roughly proportional to the intensity in the SAXS regime and, surprisingly, inversely proportional to the intensity in the WAXS regime. We interpret these observations as being due to the presence of sub-micrometre-sized voids formed during dehydration of the fixed tissue. The SAXS intensity is due largely to scattering from these voids, while the WAXS intensity derives from the secondary structures of macromolecular material surrounding the voids. The ability to detect and map the presence of voids within thin sections of fixed tissue has the potential to provide novel information on the degradation of human brain tissue in neurodegenerative diseases.

Soft X-ray spectroscopy is an important technique for measuring the fundamental properties of materials. However, for measurements of samples in the sub-millimetre range, many experimental setups show limitations. Position drifts on the order of hundreds of micrometres during thermal stabilization of the system can last for hours of expensive beam time. To compensate for drifts, sample tracking and feedback systems must be used. However, in complex sample environments where sample access is very limited, many existing solutions cannot be applied. In this work, we apply a robust computer vision algorithm to automatically track and readjust the sample position in the dozens of micrometres range. Our approach is applied in a complex sample environment, where the sample is in an ultra-high vacuum chamber, surrounded by cooled thermal shields to reach sample temperatures down to 2.5 K and in the center of a superconducting split coil. Our implementation allows sample-position tracking and adjustment in the vertical direction since this is the dimension where drifts occur during sample temperature change in our setup. The approach can be easily extended to 2D. The algorithm enables a factor of ten improvement in the overlap of a series of X-ray absorption spectra in a sample with a vertical size down to 70 µm. This solution can be used in a variety of experimental stations, where optical access is available and sample access by other means is reduced.

We present first hard X-ray photoelectron spectroscopy (HAXPES) results of aqueous salt solutions and dispersions of gold nanoparticles in liquid cells equipped with specially designed microfabricated thin silicon nitride membranes, with thickness in the 15–25 nm range, mounted in a high-vacuum-compatible environment. The experiments have been performed at the HAXPES endstation of the GALAXIES beamline at the SOLEIL synchrotron radiation facility. The low-stress membranes are fabricated from 100 mm silicon wafers using standard lithography techniques. Platinum alignment marks are added to the chips hosting the membranes to facilitate the positioning of the X-ray beam on the membrane by detecting the corresponding photoemission lines. Two types of liquid cells have been used, a static one built on an Omicron-type sample holder with the liquid confined in the cell container, and a circulating liquid cell, in which the liquid can flow in order to mitigate the effects due to beam damage. We demonstrate that the membranes are mechanically robust and able to withstand 1 bar pressure difference between the liquid inside the cell and vacuum, and the intense synchrotron radiation beam during data acquisition. This opens up new opportunities for spectroscopic studies of liquids.

Conic sections are commonly used in reflective X-ray optics. Hyperbolic mirrors can focus a converging light source and are frequently paired with elliptical or parabolic mirrors in Wolter type configurations. This paper derives the closed-form expression for a mirror-centered hyperbolic shape, with zero-slope at the origin. Combined with the slope and curvature, such an expression facilitates metrology, manufacturing and mirror-bending calculations. Previous works consider ellipses, parabolas, magnifying hyperbolas or employ lengthy approximations. Here, the exact shape function is given in terms of the mirror incidence angle and the source and image distances.

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.

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The general equation of the δ direct methods is established and applied in its difference form to the definition of one of the two residuals that constitute the SMAR phasing algorithm. These two residuals use the absolute value of ρ and/or the zero conversion of negative Fourier ripples (≥50% of the unit-cell volume). Alternatively, when solved for ρ, the general equation provides a simple derivation of the already known δM tangent formula.

Source: Streetwise Reports 11/06/2024

Golden Cariboo Resources Ltd. (GCC:CSE; GCCFF:OTC; A0RLEP:WKN; 3TZ:FSE) has reported encouraging results from its 2024 field campaign. During the exploration, the company collected 16 rock samples from the Halo zone, North Hixon zone, and Pioneer area. These samples revealed promising gold mineralization in the region. Notable highlights from the Halo zone include grab samples from newly exposed outcrops, with assays reaching 8.47 g/t Au (grams per tonne, gold), 6.59 g/t Au, and 2.39 g/t Au. These samples were taken from altered andesite tuff with quartz-carbonate veins located approximately 101 meters northeast of the nearest drill collar.

Sampling near the Pioneer showing, situated one-kilometer north-northwest of the Halo zone, also returned assays of 1.13 g/t Au and 0.40 g/t Au. The fieldwork's findings have significantly extended the strike length of known gold mineralization by one kilometer and expanded the surface footprint of mineralization to the northeast. Despite challenging glacial cover, Golden Cariboo's team continues to uncover significant gold-bearing outcrops.

The report also underscored the strategic advantages of the property's location, infrastructure, and proximity to Highway 97, which reduces exploration and operational costs. Wortel detailed Golden Cariboo's drilling campaign, which includes results such as Hole QGQ24-013, which intersected 136.51 meters at 1.77 g/t gold, including a higher-grade interval of 23.89 meters at 3.32 g/t gold.

Valuation metrics from the report included a projected fair value of CA$0.40 per share, representing a 74% potential upside from the current trading price of CA$0.23, and doesn't include the added value from recent, significant exploration success. Despite acknowledging the high risks associated with early-stage exploration projects, Couloir Capital emphasized the long-term value potential in a Tier 1 mining jurisdiction, reinforced by the company's experienced management team and promising geological trends.

Frank Callaghan, President and CEO of Golden Cariboo, stated in the news release, "Although there is a lot of glacial cover on this project, our geologists still managed to find new gold-bearing outcrops in areas of great significance. We have now expanded the surface footprint of gold mineralization at the Halo zone to the northeast and increased the strike length of our gold trend. We're in a very large gold system that is being demonstrated by multiple, varied work programs."

Mining and Metals Market

On October 29, Kitco reported that gold prices had reached nearly US$2,800. This price represents a 35% increase for the year. The rise was attributed to multiple factors, including "geopolitical conflicts, Federal Reserve interest rate normalization, continued strong demand from global central banks, and uncertainties about the upcoming presidential election and potential fiscal stimulus." Analysts at Kitco described this combination of elements as a "perfect storm." They noted it had driven investor sentiment and reinforced gold's value as a hedge against economic turmoil.

LiveMint, on October 30, highlighted the substantial returns seen in gold over the past year. Despite this impressive performance, some analysts expressed caution regarding gold's future trajectory. Ajay Kedia, Director of Kedia Advisory, suggested that while gold prices may see a short-term rally, "investors may have to remain cautious on the yellow metal in the second half of 2025." Kedia noted that gold prices could experience profit-taking and a slowdown if interest rate cuts by the Federal Reserve do not materialize as quickly as expected. Nonetheless, gold has continued to serve as a preferred asset for those seeking stability, especially in times of economic and political uncertainty.

In a November 4 report, Egon von Greyerz, Founder and Chairman of Matterhorn Asset Management, provided a historical perspective on gold's role in preserving wealth. Von Greyerz discussed how gold had consistently retained value, even as fiat currencies depreciated over time. He emphasized, "Gold held in the investor's name in safe vaults and jurisdictions outside the financial system is the ultimate form of wealth preservation." Von Greyerz also pointed to gold's outperformance since the 1970s, stating that gold had increased 78 times since President Nixon ended the gold standard in 1971. He argued that gold's journey was "only starting now," citing the ongoing destruction of fiat money value through global debt expansion and monetary policies.

Cariboo Catalysts

According to Golden Cariboo Resources' Q1 2024 investor presentation, the company is advancing exploration on its 3,814-hectare Quesnelle Gold Quartz Mine property, located in British Columbia's historic Cariboo Mining District. The asset benefits from 160 years of mining history and is road-accessible, facilitating year-round exploration. The 2024 exploration program, including trenching and a proposed 2,500-5,000m Phase 2 drilling campaign, aims to delineate the gold system further and complete a National Instrument 43-101 compliant resource estimate.

The property, encircled by Osisko Development Corp. on three sides, holds the potential for high-grade, multi-ounce gold targets. Management is focusing on a multi-phase exploration strategy. This includes trenching to assess shallow overburden and mapping and sampling to refine drill targets. The team's experience and the property's historical and geological significance position Golden Cariboo as a promising exploration venture.

The proposed drilling and development efforts reflect a systematic approach to unlocking value in this underexplored yet historically significant gold camp as the company progresses toward realizing a resource estimate.

Expert Analysis

Golden Cariboo Resources Inc. received favorable coverage from Couloir Capital in a report released on September 3, 2024. Senior Mining Analyst Ron Wortel issued a Buy recommendation for the company, noting the significant potential for discovering a large gold resource at the Quesnelle Gold Quartz property. Wortel highlighted that the property, located in British Columbia's historic Cariboo Mining District, lies along the same geological trend as Osisko Development's projects, suggesting the possibility of tapping into similar high-grade mineralization systems.

The report also underscored the strategic advantages of the property's location, infrastructure, and proximity to Highway 97, which reduces exploration and operational costs. Wortel detailed Golden Cariboo's drilling campaign, pointing out positive early results, such as Hole QGQ24-08, which intersected 263 meters at 0.29 g/t gold, including a higher-grade interval of 200 meters at 0.58 g/t gold. The analyst described these findings as indicative of "bulk-tonnage targets," with visible gold observed in several drill cores, bolstering the outlook for continued exploration success. [OWNERSHIP_CHART-11131]

Valuation metrics from the report included a projected fair value of CA$0.40 per share, representing a 286% potential upside from the current trading price of CA$0.14. Despite acknowledging the high risks associated with early-stage exploration projects, Couloir Capital emphasized the long-term value potential in a Tier 1 mining jurisdiction, reinforced by the company's experienced management team and promising geological trends.

Ownership and Share Structure

According to Golden Cariboo, management and insiders own 30% of Golden Cariboo Resources. President and CEO Frank Callaghan owns 16.45% or 6.93 million shares; Elaine Callaghan has 0.97% or 0.41 million shares; Director Andrew Rees has 0.79% or 0.33 million shares; and Director Laurence Smoliak has 0.3% or 0.13 million shares.

Retail investors hold the remaining. There are no institutional investors.

The company said it has 50.3 million shares outstanding, 24.83 million warrants, and 3.8 million options.

Its market cap is CA$9.7 million. Over the past 52 weeks, Golden Cariboo has traded between CA$0.08 and CA$0.36 per share.

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Important Disclosures:

1. Golden Cariboo Resources Ltd. has a consulting relationship with Street Smart an affiliate of Streetwise Reports. Street Smart Clients pay a monthly consulting fee between US$8,000 and US$20,000.
2. As of the date of this article, officers and/or employees of Streetwise Reports LLC (including members of their household) own securities of Golden Cariboo Resources Ltd.
3. James Guttman wrote this article for Streetwise Reports LLC and provides services to Streetwise Reports as an independent contractor.
4. This article does not constitute investment advice and is not a solicitation for any investment. Streetwise Reports does not render general or specific investment advice and the information on Streetwise Reports should not be considered a recommendation to buy or sell any security. Each reader is encouraged to consult with his or her personal financial adviser and perform their own comprehensive investment research. By opening this page, each reader accepts and agrees to Streetwise Reports' terms of use and full legal disclaimer. Streetwise Reports does not endorse or recommend the business, products, services or securities of any company.

For additional disclosures, please click here.

( Companies Mentioned: GCC:CSE; GCCFF:OTC; A0RLEP:WKN;3TZ:FSE, )

Attorney General Merrick Garland ordered a pause on federal executions Thursday while the Justice Department reviews policies and procedures on capital punishment.; Credit: Win McNamee/Getty Images

Attorney General Merrick Garland has imposed a moratorium on scheduling federal executions, the Department of Justice announced on Thursday. The department will review its policies and procedures on capital punishment, following a wave of federal executions carried out under the Trump administration.

In a memo to the Justice Department, Garland justified his decision to halt the deeply controversial practice, citing factors including its capricious application and outsized impact on people of color.

"The Department of Justice must ensure that everyone in the federal criminal justice system is not only afforded the rights guaranteed by the Constitution and laws of the United States, but is also treated fairly and humanely. That obligation has special force in capital cases," Garland said in the memo.

"Serious concerns have been raised about the continued use of the death penalty across the country, including arbitrariness in its application, disparate impact on people of color, and the troubling number of exonerations in capital and other serious cases," he added. "Those weighty concerns deserve careful study and evaluation by lawmakers."

Under former President Donald Trump, the federal government carried out its first executions in a generation last year, with 13 inmates put to death in Trump's final year in office. That included an unprecedented number of federal killings carried out in the last days of his single-term presidency, bucking a nearly century-and-a-half practice of pausing capital punishments during the presidential exchange of power.

Then-Attorney General William Barr said the executions were being carried out in cases of "staggeringly brutal murders." Civil rights activists had rallied to spare the lives of those on death row. Concerns of how humanely the sentences could be carried out, as well as the recent exonerations of a number of death row inmates, were major factors in the demonstrations to cease state-sanctioned killings.

"The Department must take care to scrupulously maintain our commitment to fairness and humane treatment in the administration of existing federal laws governing capital sentences," Garland said in his memo on Thursday.

President Biden, who nominated Garland to the top law enforcement post, opposes capital punishment. During his campaign, Biden pledged to pass legislation to end the federal death penalty.

Some congressional Democrats have been working on such legislation, but no action has been taken. Some progressives and activists opposed to capital punishment had been expressing frustration that they have not seen more movement on the issue from Biden.

"A moratorium on federal executions is one step in the right direction, but it is not enough," said Ruth Friedman, director of the Federal Capital Habeas Project. "We know the federal death penalty system is marred by racial bias, arbitrariness, over-reaching, and grievous mistakes by defense lawyers and prosecutors that make it broken beyond repair."

Friedman said Biden should commute all federal death sentences, warning that a pause alone "will just leave these intractable issues unremedied and pave the way for another unconscionable bloodbath like we saw last year."

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

Source: Dr. Ram Selvaraju 10/18/2024

H.C. Wainwright & Co. analyst Dr. Ram Selvaraju, in a research report published on October 18, 2024, reiterated a Buy rating on Anavex Life Sciences Corp. (AVXL:NASDAQ) with a price target of US$40.00. The report follows Anavex's announcement of encouraging preliminary electroencephalography (EEG) biomarker results from Part A of the ongoing Phase 2 clinical study of ANAVEX3-71 for schizophrenia treatment.

Selvaraju highlighted the significance of these results, stating, "Preliminary results demonstrated a dose-dependent effect of ANAVEX3-71 on two key EEG biomarkers in patients with schizophrenia. Treatment with ANAVEX3-71 vs. placebo resulted in improvements in 40 Hz Auditory Steady-State Response (ASSR) Inter Trial Coherence (ITC) and Resting State Alpha Power."

The analyst viewed these developments positively, noting, "These results provide evidence of CNS target engagement and potential therapeutic effects of ANAVEX3-71 in schizophrenia. The observed changes reversed known EEG and ERP biomarker abnormalities associated with schizophrenia."

Regarding Anavex's lead candidate, blarcamesine, Selvaraju stated, "Anavex remains committed to completing the Marketing Authorization Application (MAA) submission to the European Medicines Agency (EMA) under the Centralized Procedure petitioning for approval of blarcamesine for treatment of Alzheimer's disease (AD) in 4Q24."

The report also highlighted Anavex's progress with other clinical programs, including a pivotal Phase 2b/3 trial in Parkinson's disease and potential trials in Rett syndrome and Fragile X Syndrome.

Selvaraju's valuation methodology for Anavex Life Sciences is based on a discounted cash flow (DCF) approach. He explained, "We utilize a discounted cash flow (DCF)-driven methodology, which ascribes a total value of roughly US$3.25B to blarcamesine alone without ascribing value to any other pipeline assets. We employ a 50% probability of approval in Rett syndrome; 60% in Parkinson's disease dementia (PDD); and 50% in AD."

The analyst added, "Further, we apply a 12% discount rate and 1% terminal growth rate. We derive a total firm value of ~US$3.4B, which yields a 12-month price objective of US$40 per share, assuming 84.8M shares outstanding as of end-F2Q25."

Selvaraju also outlined several risk factors, including potential negative clinical data, regulatory approval challenges, and commercialization difficulties.

In conclusion, H.C. Wainwright & Co.'s maintenance of a Buy rating and US$40 price target reflects a positive outlook on Anavex Life Sciences' clinical progress and potential in developing treatments for neurological disorders. The share price at the time of the report of US$5.51 represents a potential return of approximately 626% to the analyst's target price, highlighting the significant upside potential if the company's clinical development plans prove successful.

Important Disclosures:

1. This article does not constitute investment advice and is not a solicitation for any investment. Streetwise Reports does not render general or specific investment advice and the information on Streetwise Reports should not be considered a recommendation to buy or sell any security. Each reader is encouraged to consult with his or her personal financial adviser and perform their own comprehensive investment research. By opening this page, each reader accepts and agrees to Streetwise Reports' terms of use and full legal disclaimer. Streetwise Reports does not endorse or recommend the business, products, services or securities of any company.
2. This article does not constitute medical advice. Officers, employees and contributors to Streetwise Reports are not licensed medical professionals. Readers should always contact their healthcare professionals for medical advice.

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Disclosures for H.C. Wainwright & Co., Anavex Life Sciences Corp., October 18, 2024.

This material is confidential and intended for use by Institutional Accounts as defined in FINRA Rule 4512(c). It may also be privileged or otherwise protected by work product immunity or other legal rules. If you have received it by mistake, please let us know by e-mail reply to unsubscribe@hcwresearch.com and delete it from your system; you may not copy this message or disclose its contents to anyone. The integrity and security of this message cannot be guaranteed on the Internet. H.C. WAINWRIGHT & CO, LLC RATING SYSTEM: H.C. Wainwright employs a three tier rating system for evaluating both the potential return and risk associated with owning common equity shares of rated firms. The expected return of any given equity is measured on a RELATIVE basis of other companies in the same sector. The price objective is calculated to estimate the potential movements in price that a given equity could reach provided certain targets are met over a defined time horizon. Price objectives are subject to external factors including industry events and market volatility.

H.C. Wainwright & Co, LLC (the “Firm”) is a member of FINRA and SIPC and a registered U.S. Broker-Dealer. I, Raghuram Selvaraju, Ph.D. , certify that 1) all of the views expressed in this report accurately reflect my personal views about any and all subject securities or issuers discussed; and 2) no part of my compensation was, is, or will be directly or indirectly related to the specific recommendation or views expressed in this research report; and 3) neither myself nor any members of my household is an officer, director or advisory board member of these companies. None of the research analysts or the research analyst’s household has a financial interest in the securities of Anavex Life Sciences Corp. (including, without limitation, any option, right, warrant, future, long or short position). As of September 30, 2024 neither the Firm nor its affiliates beneficially own 1% or more of any class of common equity securities of Anavex Life Sciences Corp.. Neither the research analyst nor the Firm knows or has reason to know of any other material conflict of interest at the time of publication of this research report.

The research analyst principally responsible for preparation of the report does not receive compensation that is based upon any specific investment banking services or transaction but is compensated based on factors including total revenue and profitability of the Firm, a substantial portion of which is derived from investment banking services. Mr. Selvaraju, who is [the][an] author of this report, is the Chairman of and receives compensation from Relief Therapeutics Holding SA, a Swiss, commercial-stage biopharmaceutical company identifying, developing and commercializing novel, patent protected products in selected specialty, rare and ultra-rare disease areas on a global basis ("Relief"). You should consider Mr. Selvaraju's position with Relief when reading this research report. The firm or its affiliates received compensation from Anavex Life Sciences Corp. for non-investment banking services in the previous 12 months. The Firm or its affiliates did not receive compensation from Anavex Life Sciences Corp. for investment banking services within twelve months before, but will seek compensation from the companies mentioned in this report for investment banking services within three months following publication of the research report. The Firm does not make a market in Anavex Life Sciences Corp. as of the date of this research report. The securities of the company discussed in this report may be unsuitable for investors depending on their specific investment objectives and financial position. Past performance is no guarantee of future results. This report is offered for informational purposes only, and does not constitute an offer or solicitation to buy or sell any securities discussed herein in any jurisdiction where such would be prohibited. This research report is not intended to provide tax advice or to be used to provide tax advice to any person. Electronic versions of H.C. Wainwright & Co., LLC research reports are made available to all clients simultaneously. No part of this report may be reproduced in any form without the expressed permission of H.C. Wainwright & Co., LLC. Additional information available upon request. H.C. Wainwright & Co., LLC does not provide individually tailored investment advice in research reports. This research report is not intended to provide personal investment advice and it does not take into account the specific investment objectives, financial situation and the particular needs of any specific person. Investors should seek financial advice regarding the appropriateness of investing in financial instruments and implementing investment strategies discussed or recommended in this research report. H.C. Wainwright & Co., LLC’s and its affiliates’ salespeople, traders, and other professionals may provide oral or written market commentary or trading strategies that reflect opinions that are contrary to the opinions expressed in this research report. H.C. Wainwright & Co., LLC and its affiliates, officers, directors, and employees, excluding its analysts, will from time to time have long or short positions in, act as principal in, and buy or sell, the securities or derivatives (including options and warrants) thereof of covered companies referred to in this research report. The information contained herein is based on sources which we believe to be reliable but is not guaranteed by us as being accurate and does not purport to be a complete statement or summary of the available data on the company, industry or security discussed in the report. All opinions and estimates included in this report constitute the analyst’s judgment as of the date of this report and are subject to change without notice. Securities and other financial instruments discussed in this research report: may lose value; are not insured by the Federal Deposit Insurance Corporation; and are subject to investment risks, including possible loss of the principal amount invested.

( Companies Mentioned: AVXL:NASDAQ, )

Source: Streetwise Reports 11/08/2024

Vertex Pharmaceuticals Inc. (VRTX:NASDAQ) has reported a robust financial performance for the third quarter of 2024. The report has demonstrated the company's continued revenue growth and the strengthening of its innovative pipeline. For Q3 2024, Vertex's product revenue reached US$2.77 billion, a 12% increase from the previous year. This was primarily driven by strong demand for its TRIKAFTA®/KAFTRIO® therapies. Based on this momentum, Vertex raised its full-year product revenue guidance to a range of US$10.8 billion to US$10.9 billion, citing a solid trajectory in its cystic fibrosis (CF) portfolio and expected future launches.

In Q3, the company made notable advancements in its pipeline. Three programs have begun moving into Phase 3 clinical development: suzetrigine in diabetic peripheral neuropathy (DPN), povetacicept in IgA nephropathy (IgAN), and VX-880 in type 1 diabetes (T1D). Vertex is also preparing for the launch of two potential treatments in early 2025, with PDUFA dates set for January 2 for the vanzacaftor triple therapy for CF and January 30 for suzetrigine, the latter being a pain medication in a new therapeutic class aimed at reducing reliance on opioids.

GAAP and Non-GAAP net income both reached US$1.0 billion, largely driven by increased product revenue, which offset rising R&D and SG&A expense. This was s due to investments in global commercialization and late-stage clinical development. For Q3, Vertex's combined R&D and SG&A expenses were US$1.2 billion and US$1.1 billion, respectively, an increase from last year attributed to new global program advancements and upcoming launch support.

Vertex's cash position remained strong, with US$11.2 billion in cash, cash equivalents, and marketable securities as of September 30. The decline from US$13.7 billion at the end of 2023 primarily reflects the acquisition of Alpine Immune Sciences and share repurchases under the company's buyback program.

A Look At Biotechnology and Pharma

The U.S. Pharmaceuticals Report for 2024 by Nova One Advisor detailed the size and growth trajectory of the U.S. pharmaceutical market. Valued at US$602.19 billion in 2023, the sector is projected to exceed US$1 trillion by 2033. The report pointed to a "high healthcare expenditure provided by government bodies" as a primary growth driver, further bolstered by the aging population's demand for advanced treatments.

In an October 24 article, The Investing News Network reported on a dynamic landscape within the biotechnology sector. The report highlighted advancements in AI-powered drug discovery. Despite a cautious investment climate, interest remained strong in AI's potential to reshape healthcare, with venture capital investment reaching US$6.59 billion. At the HealthTech Ignite conference, Susie Roberts from Relay Therapeutics expressed confidence, noting, "We will definitely see AI design drugs in the next 10 years."

On November 4, Yahoo! Finance shared insights from MIT professors Andrew Lo and Dennis Whyte. They emphasized that biotechnology's rapid advancement over the past five decades offers valuable lessons for future innovation. In their research paper, Lo and Whyte proposed initiatives to accelerate biotechnology's growth, underscoring the importance of "reducing risk and uncertainty" to foster a robust investment ecosystem that supports groundbreaking discoveries.

Catalysts Driving Vertex Pharma

According to Vertex's November 2024 investor presentation, the company sees multiple growth catalysts over the next few years. Vertex aims to meet its goal of achieving "five launches in five years," focusing on expanding the treatable patient base in CF with vanzacaftor triple, addressing critical needs in sickle cell disease (SCD) and beta thalassemia (TDT) with CASGEVY, and launching suzetrigine for acute pain management.

Additionally, Vertex expects its expansive R&D pipeline to support long-term growth. This includes pivotal clinical trials for VX-880 in T1D, povetacicept in IgAN, and NaV1.8 pain inhibitors like suzetrigine, indicating a commitment to treating a range of chronic and life-threatening conditions with limited therapeutic options.

By driving advancements in CF therapies, diversifying its portfolio with novel pain treatments, and pursuing accelerated approvals for renal and blood-related disorders, Vertex is strategically positioning itself to sustain growth and achieve several near-term milestones.

What Are Experts Saying About Vertex?

In a November 5, 2024, H.C. Wainwright & Co. update, the analysts highlighted promising data from Vertex's recent Phase 2 trial for suzetrigine, which showed encouraging reductions in pain intensity. [OWNERSHIP_CHART-4085]

The analysts noted that suzetrigine's peripheral nervous system-specific mechanism could potentially address "a significant, unmet medical need worldwide" in non-opioid pain management. They set a price target of US$600.00, projecting Vertex's continued growth from its strong cystic fibrosis franchise and pipeline expansion.

From the November 7 Kingswood Capital Partners report, analysts noted Vertex Pharmaceuticals' "sustained execution" in advancing product development programs and achieving robust operating margins, enabling "continued, significant investments" in both its pipeline and commercial capabilities. The firm maintained a "Buy" rating with a 12-month target price of US$550.00, attributing this outlook to Vertex's deep cash resources and historical successes in clinical trials.

Ownership and Share Structure

According to Refinitiv, 95.44% of Vertex Pharmaceuticals is held by Institutions. The top among them are Capital World Investors at 10.37%, The Vanguard Group at 8.88%, BlackRock Institutional Trust with 5.49%, State Street Global Advisors (US) with 4.55%, and Fidelity Management and Research with 4.11%. Strategic Investors hold .12%. The rest is retail.

The company's market cap is US$129,395.59 million with 257.07 million free float shares. The 52 week range is US$341.90–$510.64.

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Important Disclosures:

1) James Guttman wrote this article for Streetwise Reports LLC and provides services to Streetwise Reports as an employee.

2) This article does not constitute investment advice and is not a solicitation for any investment. Streetwise Reports does not render general or specific investment advice and the information on Streetwise Reports should not be considered a recommendation to buy or sell any security. Each reader is encouraged to consult with his or her personal financial adviser and perform their own comprehensive investment research. By opening this page, each reader accepts and agrees to Streetwise Reports' terms of use and full legal disclaimer. Streetwise Reports does not endorse or recommend the business, products, services or securities of any company.

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( Companies Mentioned: VRTX:NASDAQ, )

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As search and rescue efforts at the site of the Surfside, Fla., condo collapse stretch into day nine, officials have said that the number of confirmed fatalities has risen to 20, while the number of people unaccounted for has dropped from 145 to 128.

Miami-Dade County Mayor Daniella Levine Cava told reporters Friday that one of the two fatalities recovered overnight was the 7-year-old daughter of a firefighter for the city of Miami.

"It goes without saying that every night since this last Wednesday has been immensely difficult for everybody, particularly the families that have been impacted," Levine Cava said. "But last night was truly different and more difficult for our first responders. These men and women are paying an enormous human toll each every day, and I ask that all of you please keep all of them in your thoughts and prayers."

"They truly represent the very best in all of us, and we need to be there for them as they are here for us," she said.

The number of people who have been accounted for has grown to 188, officials also confirmed Friday. In many cases, detectives followed leads regarding individuals who were unaccounted for but then reached them and discovered they were safe.

They even discovered additional family members who were safe and who could have been in the building, and added them to the tally of accounted for individuals.

Officials have not yet released the names of all of the dead and missing people, and asked Friday that the privacy of the families be respected.

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

Crews searching the building collapse site in Surfside, Fla., have discovered four more victims since Monday, bringing the death toll to 32. Authorities have identified 26 of the bodies.

Another 113 people were unaccounted for, though local officials said they had only been able to confirm that about 70 of those people were in the building at the time of the collapse nearly two weeks ago.

Detectives are continuing to follow up on reports submitted about possible victims in the partial collapse, but in some cases they have been unable to reach those who submitted the tips in the first place.

"People call anonymously. People call and don't leave return phone numbers. People call with partial information, not enough to really secure whether that person may or may not have been in the building," Miami-Dade County Mayor Daniella Levine Cava told reporters on Tuesday.

Some of the reports of possible victims are also incomplete, she said, including a name but no apartment number or no date of birth.

Levine Cava urged people who are missing loved ones to communicate with local authorities. She said there may also be victims of the collapse who have not been reported missing.

The rescue effort stopped briefly overnight due to lightning from a passing storm. Surfside Mayor Charles Burkett said high winds were hampering the cranes moving heavy debris from the collapse site.

Lt. Gov. Jeanette Nuñez said Florida has declared a state of emergency ahead of Tropical Storm Elsa, which is expected to reach hurricane strength before making landfall Wednesday morning on the state's west coast.

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

Lindsey Smith was recognized by the North Carolina Society for Public Health Education as a new health educator in North Carolina who has made outstanding contributions to the profession.

RealtyAnalytix Advisors, LLC announces the introduction of Catawba Industrial Commons, a multi-tenant industrial campus offering the most attractive, affordable and functional manufacturing, distribution and warehousing space in the Greater Catawba County region.

Furniture manufacturer Lee Industries, Inc. plans to expand their manufacturing capabilities in Catawba County by extensively redeveloping and renovating the former Conover Chair facility in Conover, N.C. and adding 75 new employees beginning in late 2011. The company will be hiring cutters, sewers, spring-up associates, inside and outside upholsterers, shipping personnel, support staff and more. The average employee wage is expected to be $41,045, nearly $7,000 more than the average pay for workers living in Catawba County.

Students work on a classroom exercise at a school in Kibera, a poor neighborhood in Nairobi, Kenya.; Credit: Tony Karumba/AFP via Getty Images

You'd think the best way to get girls to succeed in school would to be design programs specifically for them — offer them mental health support or free menstrual pads.

But a new study, published in May in the journal World Bank Economic Review, begs to differ. Researchers David Evans and Fei Yuan reviewed 267 studies of education programs from 54 low- and middle-income countries to find the most effective ways to get more girls in school and improve their learning. Globally, more than 130 million girls remain out of school, according to the World Bank, due to poverty, child marriage and violence.

Instead of only examining girls' education programs, they looked at all kinds of programs. To measure access, they analyzed enrollment rates, attendance, drop-out, graduation and completion rates, and to measure performance, they looked at test scores.

Their biggest finding is that gender-neutral programs — such as handing out cash aid to families of school-aged children — can be just as effective at improving girls' education as programs designed just for girls.

The study is among the first to look both at ways to boost girls' access to school as well as their classroom performance, says Markus Goldstein, lead economist at the World Bank's Africa Gender Innovation Lab, who did not work on the report.

We spoke with Evans, a senior fellow at the Center for Global Development, and Yuan, a doctoral candidate in education policy and program evaluation at Harvard University, to discuss the best ways to boost education for girls in low- and middle-income countries. This interview has been edited for length and clarity.

What inspired you to conduct this study?

Evans: A lot of the previous work that examined this issue have focused on programs targeted to needs that are unique to girls, such as menstrual health. Those are worthy interventions, but if we only focus on programs that target girls, we might miss programs that benefit girls a lot but happen to help boys as well.

That's why we decided to look at all of the interventions we know of to identify the ones that are most effective at improving outcomes for girls, regardless of whether they're specifically for girls or not.

You found that the most effective programs for getting more girls into school cut the cost of education for students, regardless of gender, and their families. What are some examples of programs that worked well?

Evans: A lot of the most effective programs are ones that either eliminate school fees, provide scholarships or provide families a cash transfer to cover the other costs of having their daughter in school.

For example, in Ghana, lots of girls and boys pass their secondary school entrance exam, but they don't have the money to pay school fees. So, a program there provided scholarships to students who had already passed the entrance exam. It dramatically increased the high-school graduation rate of girls by 66%.

But the most effective interventions are those that address costs related to specific obstacles that girls face in a particular setting. In Afghanistan, for example, a [non-gendered] program built schools in rural communities. It decreased [the cost of] travel to school for both girls and boys and led to a more than 50% increase in girls' participation in primary school. That's dramatic.

Which programs were the most helpful for improving a girl's school performance, as opposed to just getting them into the classroom?

Evans: The most effective interventions to increase learning were programs that improved the quality of teaching. But it's not just throwing teachers into a conference room and giving them some lecture. It's also not about throwing fancy technology, like laptops or tablets, at classrooms. Hardware doesn't work. It's distracting for teachers and students.

Instead, a literacy program – which included coaching teachers, providing them with detailed teachers' guides and providing students with books – had a big impact on girls' education [in terms of test scores] in Kenya. So did another program in Kenya that helped teachers to teach children in a language they spoke at home (rather than English).

Were there any other types of programs that helped girls learn better in the classroom?

Yuan: Another intervention worth mentioning is called Teaching at the Right Level, based in India. The idea is that students in the same classroom may have many different reading levels. But because of constraints like large class sizes, teachers may not be able to tailor their teaching to the right level for every student. This leaves some students behind.

Teaching at the Right Level facilitated summer camps in which children were grouped by reading level, instead of age or grade. This allowed teachers to target their teaching to the specific levels of these students. In one region, after 50 days of focused teaching in these camps, children at the lowest achievement levels in India were able to catch up to the learning level of the third-highest achieving state in the country.

Many of the high-impact interventions you're referencing don't target girls specifically. Are you saying that girls' programs aren't necessary?

Evans: Not at all! We particularly focused on how to increase access to education and improve quality of learning. Some [girl-focused] programs have other goals – such as reducing violence against girls, improving girls' psychological and emotional wellbeing, reducing adolescent pregnancy or helping girls to transition from school to the workforce.

But when teaching is of bad quality, we just need to help schools improve the teaching. That's not necessarily a gender-specific problem.

Wouldn't it be more cost-effective to just offer scholarships or cash transfers to girls only instead of both genders, especially if far fewer girls are attending school than boys?

Evans: Sure, if you don't have the budget to waive school fees for everyone, eliminating school fees for girls is an effective way to do a girl-targeted program. That's what The Gambia did. But sometimes general, non-targeted interventions are more politically palatable for governments, since constituents have both daughters and sons.

Were you concerned that some of the gender-neutral programs might benefit boys more than girls?

Evans: That was something we were worried about – increasing inequality. But we found that overall, the impact of gender-neutral programs tends to be slightly larger on girls than boys both in terms of access and learning. These differences, for the most part, were not statistically significant. They were small. But it does mean that these general, non-targeted interventions are not increasing inequality between boys and girls. If anything, they're likely to decrease it.

What changes do you hope to see in how we work on girls' education around the world?

Evans: We want to make sure that people who care about girls' education draw on the full toolbox of programs that can improve girls' education. That includes girl-targeted programs. It also includes general programs.

We don't anyone to walk away from this and say, 'Oh, we don't need to worry about girls.' Instead, it means that if we are worried about girls, we have a broader array of tools to help them.

Joanne Lu is a freelance journalist who covers global poverty and inequity. Her work has appeared in Humanosphere, The Guardian, Global Washington and War is Boring. Follow her on Twitter: @joannelu

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

Good morning and welcome. There has been unprecedented interest in recent years about whether marijuana or its constituent compounds should be used as medicine. Since 1996, voters in seven states have approved the medical use of marijuana.

No single approach -- technical, legal, economic, or educational -- will be sufficient to protect children from online pornography.

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.

Nurses roles, responsibilities, and education should change significantly to meet the increased demand for care that will be created by health care reform and to advance improvements in Americas increasingly complex health system, says a new report from the Institute of Medicine.

Increasing the minimum age of legal access (MLA) to tobacco products will prevent or delay initiation of tobacco use by adolescents and young adults, particularly those ages 15 to 17, and improve the health of Americans across the lifespan, says a new report from the Institute of Medicine.

Hydraulic fracturing has a low risk for inducing earthquakes that can be felt by people, but underground injection of wastewater produced by hydraulic fracturing and other energy technologies has a higher risk of causing such earthquakes, says a new report from the National Research Council.

A new report from the Institute of Medicine and National Research Council proposes priorities for a research agenda to improve understanding of the public health aspects of gun-related violence, including its causes, health burden, and possible interventions.

The Institute of Medicine today presented the Gustav O. Lienhard Award to Linda Aiken, Claire M. Fagin Leadership Professor of Nursing at the University of Pennsylvania School of Nursing, for her rigorous research demonstrating the importance of nursing care and work environments in achieving safe, effective, patient-centered, and affordable health care.

Efforts to convert civilian research reactors from weapon-grade highly enriched uranium (HEU) to low enriched uranium (LEU) fuels are taking significantly longer than anticipated, says a congressionally mandated report from the National Academies of Sciences, Engineering, and Medicine.

Ovarian cancer should not be categorized as a single disease, but rather as a constellation of different cancers involving the ovary, yet questions remain on how and where various ovarian cancers arise, says a new congressionally mandated report from the National Academies of Sciences, Engineering, and Medicine.

A new report from the National Academies of Sciences, Engineering, and Medicine urges Congress, federal and state agencies, and regulatory institutions to significantly increase their support for innovation for what the report’s study committee calls “increasingly clean” electric power technologies – nuclear power, carbon capture and storage, and renewables such as solar and wind. Some of these technologies have seen recent cost and price declines and are cost-competitive in certain locations.

Rising levels of noise in the ocean have been identified as a growing concern for the well-being of marine mammals, but other threats such as pollution, climate change, and prey depletion by fisheries may also harm marine mammals and influence their response to additional noise.

Despite progress in recent decades, more than 10,000 alcohol-impaired driving fatalities occur each year in the U.S. To address this persistent problem, stakeholders -- from transportation systems to alcohol retailers to law enforcement -- should work together to implement policies and systems to eliminate these preventable deaths, says a new report from the National Academies of Sciences, Engineering, and Medicine.

A new congressionally mandated report from the National Academies of Sciences, Engineering, and Medicine takes a comprehensive look at evidence on the human health effects of e-cigarettes.

A single breakthrough discovery for managing citrus greening in Florida in the future is unlikely, says a new report by the National Academies of Sciences, Engineering, and Medicine.