bluuebunny/crossref_metadata_2025_split huggingface dataset:
Randomized controlled trial of a group peer mentoring model for U.S. academic medicine research faculty
Authors: Pololi Linda H. , Evans Arthur T. , Brimhall-Vargas Mark , Civian Janet T. , Cooper Lisa A. , Gibbs Brian K. , Ninteau Kacy , Vasiliou Vasilia , Brennan Robert T. 
Published: August 2023

Abstract

Introduction:
Midcareer is a critical transition point for biomedical research faculty and a common dropout point from an NIH-funded career. We report a study to assess the efficacy of a group peer mentoring program for diverse biomedical researchers in academic medicine, seeking to improve vitality, career advancement, and cross-cultural competence.

Methods:
We conducted a stratified randomized controlled trial with a waitlist control group involving 40 purposefully diverse early midcareer research faculty from 16 states who had a first-time NIH R01 (or equivalent) award, a K training grant, or a similar major grant. The yearlong intervention (2 to 3 days quarterly) consisted of facilitated, structured, group peer mentoring. Main study aims were to enhance faculty vitality, self-efficacy in achieving research success, career advancement, mentoring others, and cultural awareness and appreciation of diversity in the workplace.

Results:
Compared to the control group, the intervention group’s increased vitality did not reach statistical significance (P = 0.20), but perceived change in vitality was 1.47 standard deviations higher (D = 1.47, P = 0.03). Self-efficacy for career advancement was higher in the intervention group (D = 0.41, P = 0.05) as was self-efficacy for research (D = 0.57, P = 0.02). The intervention group also valued diversity higher (D = 0.46, P = 0.02), had higher cognitive empathy (D = 0.85, P = 0.03), higher anti-sexism/racism skills (D = 0.71, P = 0.01), and higher self-efficacy in mentoring others (D = 1.14, P = 0.007).

Conclusions:
The mentoring intervention resulted in meaningful change in important dimensions and skills among a national sample of diverse early midcareer biomedical faculty. This mentoring program holds promise for addressing the urgencies of sustaining faculty vitality and cross-cultural competence.
‘The most humane of all weapons’: Discrimination, airpower, and precision doctrine
Authors: Goddard Stacie E. , Larkin Colleen 
Published: August 2023

AbstractHow did the norm of discrimination become the dominant yardstick to measure the ethics of US airpower? Conventional accounts suggest that as elites and publics embraced norms of discrimination, this pushed US air forces to adopt a precision doctrine, one that demands accurately striking military, and not civilian, targets. Relying on a pragmatic reading of norm contestation and settling, we suggest that conventional explanations have the causal story reversed: it was not the strengthening of the norm of discrimination that led US air forces to commit to precision bombing. It was the commitment to precision bombing that led to the strengthening of the norm of discrimination. As precision technology became available during the interwar period, air-force officers co-opted the language of discrimination to justify their emerging doctrine. This co-optation of the language of discrimination would not only settle these norms as the guiding ethics of airpower. It would also transform them, redefining these norms in ways that privileged the process of precision targeting, rather than the outcome of civilian harm.
ON THE ANTI-CANONICAL GEOMETRY OF WEAK -FANO THREEFOLDS, III
Authors: JIANG CHEN , ZOU YU 
Published: August 2023

AbstractFor a terminal weak
${\mathbb {Q}}$
-Fano threefold X, we show that the mth anti-canonical map defined by
$|-mK_X|$
is birational for all
$m\geq 59$
.
Quality analysis of publicly available information about hypoplastic left heart syndrome
Authors: Brennan Zachary , Sharaf Omar M. , Treffalls John A. , Roa-Vidal Natalia , Weinstein Douglas J. , Bassuk Jonah S. , Stukov Yuriy , Peek Giles J. , Bleiweis Mark S. , Jacobs Jeffrey P. 
Published: August 2023

AbstractPurpose:Publicly available health information is increasingly important for patients and their families. While the average US citizen reads at an 8th-grade level, electronic educational materials for patients and families are often advanced. We assessed the quality and readability of publicly available resources regarding hypoplastic left heart syndrome (HLHS).Methods:We queried four search engines for “hypoplastic left heart syndrome”, “HLHS”, and “hypoplastic left ventricle”. The top 30 websites from searches on Google, Yahoo!, Bing, and Dogpile were combined into a single list. Duplicates, commercial websites, physician-oriented resources, disability websites, and broken links were removed. Websites were graded for accountability, content, interactivity, and structure using a two-reviewer system. Nonparametric analysis of variance was performed.Results:Fifty-two websites were analysed. Inter-rater agreement was high (Kappa = 0.874). Website types included 35 hospital/healthcare organisation (67.3%), 12 open access (23.1%), 4 governmental agency (7.7%), and 1 professional medical society (1.9%). Median total score was 19 of 39 (interquartile range = 15.8–25.3): accountability 5.5 of 17 (interquartile range = 2.0–9.3), content 8 of 12 (interquartile range = 6.4–10.0), interactivity 2 of 6 (interquartile range = 2.0–3.0), and structure 3 of 4 (interquartile range = 2.8–4.0). Accountability was low with 32.7% (n = 17) of sites disclosing authorship and 26.9% (n = 14) citing sources. Forty-two percent (n = 22) of websites were available in Spanish. Total score varied by website type (p = 0.03), with open access sites scoring highest (median = 26.5; interquartile range = 20.5–28.6) and hospital/healthcare organisation websites scoring lowest (median = 17.5; interquartile range = 13.5–21.5). Score differences were driven by differences in accountability (p = 0.001) – content scores were similar between groups (p = 0.25). Overall readability was low, with median Flesch–Kincaid Grade Level of 11th grade (interquartile range = 10th–12th grade).Conclusions:Our evaluation of popular websites about HLHS identifies multiple opportunities for improvement, including increasing accountability by disclosing authorship and citing sources, enhancing readability by providing material that is understandable to readers with the full spectrum of educational background, and providing information in languages besides English, all of which would enhance health equity.
Unhealthy weight among young children in the Middle East and North African region
Authors: Jones-Antwi Rebecca , Cunningham Solveig A 
Published: August 2023

AbstractObjective:To understand early-life growth in the Middle East and North Africa (MENA) region, and how it has changed over time, we estimated the prevalence of wasting and overweight at ages under 5 years.Design:Cross-sectional data from twenty-nine Demographic and Health Surveys with direct anthropometric data and parent-reported demographic information were examined. The study utilised the WHO Child Growth Standards to classify overweight (weight-for-height z-score ≥ 2 sd above the median), wasting (weight-for-height z-score ≤ 2 sd below the median) and unhealthy weight defined as either wasting or overweight.Setting:Nationally representative for nine of the MENA countries (Armenia, Azerbaijan, Egypt, Jordan, Mauritania, Morocco, Tunisia, Turkey and Yemen).Participants:Children under age 5 from nine MENA countries between 1987 and 2016 (n 155 961).Results:Across the region, at the most recent time point, between 7·3 and 23·6 % of children experienced unhealthy weight (Jordan – 7·3 %, Egypt –23·6 %); 1·7 and 16·6 % had wasting (Turkey, Yemen) and 2·0 and 15·0 % had overweight (Yemen, Egypt). Overweight was more common than wasting in all countries except Yemen and Mauritania. Between 1987 and 2016, the prevalence of unhealthy weight in the region increased (10·0–18·4 %) due to increases in both wasting and overweight. Boys had a higher prevalence of unhealthy weight than girls.Conclusion:Undernutrition continues to be a problem in some countries in the MENA region, and overnutrition is emerging as a health concern in many countries in the region. Countries in the region must advance programmes that reduce undernutrition while not overlooking or inadvertently promoting overnutrition.
Some differences, many similarities: comparing Europe’s responses to the 1973 oil crisis and the 2022 gas crisis
Authors: Schramm Lucas 
Published: August 2023

AbstractScholars of European integration are primarily interested in explaining change and variation over time. Indeed, given that integration has progressed over 50 years and competences have been transferred to the European level in policy fields, including energy, fast and coordinated action in the face of a major external threat might have been anticipated. Yet, as this article documents, member states struggled to establish a cohesive and solidary European response to the 2022 gas crisis, just as they had failed to cooperate effectively during the 1973 oil crisis. Building on recent literature on European polity development and integration through crises, this article argues that differences in national crisis affectedness and energy structures hampered cooperation. Such asymmetries became particularly visible on the part of France and Germany, the Union’s two largest member states, who could have provided regional political leadership. Consequently, both the 1973 and 2022 energy crises led to very limited steps in European integration and collectively suboptimal policy outcomes, such as high energy prices and uneven access to energy resources.
Balancing EC‐Earth3 Improving the Performance of EC‐Earth CMIP6 Configurations by Minimizing the Coupling Cost
Authors: Acosta M. C. , Palomas S. , Tourigny E. 
Published: August 2023

AbstractEarth System Models (ESMs) are complex systems used in weather and climate studies generally built from different independent components responsible for simulating a specific realm (ocean, atmosphere, biosphere, etc.). To replicate the interactions between these processes, ESMs typically use coupling libraries that manage the synchronization and field exchanges between the individual components, which run in parallel as a Multi‐Program, Multiple‐Data application. As ESMs get more complex (increase in resolution, number of components, configurations, etc.), achieving the best performance when running in High‐performance Computing platforms has become increasingly challenging and of major concern. One of the critical bottlenecks is the load‐imbalance, where the fastest components will have to wait for the slower ones. Finding the optimal number of processing elements to assign to each of the multiple independent constituents to minimize the performance loss due to synchronizations and maximize the overall parallel efficiency is impossible without the right performance metrics, methodology, and tools. This paper presents the results of balancing multiple Coupled Model Intercomparison Project phase 6 configurations for the EC‐Earth3 ESM. We will show that intuitive approaches can lead to suboptimal resource allocations and propose new setups up to 25% fasters while reducing the computational cost by 72%. We prove that new methods are needed to deal with the load‐balance of ESMs and hope that our study will serve as a guide to optimize any other coupled system.
Late Cretaceous‐Recent Tectonostratigraphic Evolution of the Yucatan Back‐Arc Basin, Northern Caribbean Sea
Authors: Ramos Juan Pablo , Mann Paul 
Published: August 2023

AbstractThe 110,000 km2 Yucatan Basin in the northern Caribbean Sea is critical for understanding the Late Cretaceous to Recent tectonic evolution of the Caribbean‐North American plate boundary. This study integrates gravity, magnetic, and a 5,500 km grid of 2D seismic data to carry out a tectonostratigraphic analysis of the Yucatan Basin. These data provide the first recognition of 38–102 km‐long spreading ridges that constrain a SW‐NE opening direction in the western Yucatan Basin. The age of this oceanic crust is constrained to be late Paleocene‐middle Eocene (57–42 Ma) based on heat flow measurements, depth‐to‐seafloor, and three sedimentary sequences inferred to be Eocene—Recent in age based on stratigraphic correlations to distant wells. We interpret the Yucatan Basin as a back‐arc basin formed during the northeastward movement of the Caribbean volcanic arc that is now exposed in Cuba, evolved during the early Cretaceous to middle Eocene, and was terminated by collision with the Bahama carbonate platform during the late Paleocene to middle Eocene. We identify regional, left‐lateral strike‐slip faults that extend into the Cuban volcanic arc, as observed in other active back‐arc basins. We propose that the Yucatan back‐arc basin once formed the northwestern extension of age‐equivalent back‐arc basins in Hispaniola, where the basin is inverted, topographically elevated, and strongly shortened, and in the Lesser Antilles where the Paleogene back‐arc basin has remained undeformed and submarine. This once‐continuous back‐arc basin was disrupted and left‐laterally offset by ∼500 km during the Late Eocene‐Recent formation of the Cayman trough strike‐slip system.
Experimental and Theoretical Investigation of Alkene Transformations in Oceanic Hydrothermal Fluids: A Mechanistic Study of Styrene
Authors: Aspin Alexandria , Smith Benjamin , Burcar Ethan , Firestone Zackary , Yang Ziming 
Published: August 2023

AbstractNatural organic matter plays an important role in oceanic hydrothermal systems through a combination of geological and chemical processes. However, identifying the hydrothermal pathways of organic compounds is still quite limited, preventing us from understanding how organic matter is transformed in hydrothermal systems. In this study, we focus on the reaction pathways of alkenes, which represent a key functional group intermediate linking the most abundant hydrocarbons in seafloor hydrothermal environments. Three major pathways are observed for alkenes under mild hydrothermal conditions, including hydration, oxidation, and dimerization. The pathway distributions of alkenes can be affected by the presence of dissolved metal salts; hydration of alkenes is driven by metal ions via the change of solution pH, while alkene dimerization is controlled by pH and the type of metal cations and complexes. Overall, this study identifies alkene hydrothermal pathways and highlights the important roles of metal salts in controlling hydrothermal transformations.
Optimizing Injection Locations Relaxes Altitude‐Lifetime Trade‐Off for Stratospheric Aerosol Injection
Authors: Sun Hongwei , Bourguet Stephen , Eastham Sebastian , Keith David 
Published: August 2023

AbstractStratospheric Aerosol Injection (SAI) aims to offset some climate hazards by injecting aerosols into the stratosphere to reflect solar radiation. The lifetime of injected particles influences SAI's radiative efficacy—the ratio of radiative forcing to particle mass flux. We employ a Lagrangian trajectory model with particle sedimentation to simulate how background circulations influence the transport of passive particles (without microphysical growth) in the stratosphere and quantify sensitivities of particle lifetime to injection locations. At 20 km, optimizing injection locations can increase particle lifetime by >40%. Injection strategies can be constrained to maintain an interhemispheric balance of particle lifetime without significantly decreasing total lifetime. Generally, increasing injection altitude increases particle lifetime while also increasing costs and environmental impacts of deployment aircraft. Optimizing injection latitude and longitude can relax this altitude‐lifetime trade‐off by increasing lifetime without needing to increase altitude, which warrants further testing in global climate models with aerosol microphysics.
Plasmaspheric High‐Frequency Whistlers as a Candidate Cause of Shock Aurora at Earth
Authors: Liu Nigang , Su Zhenpeng , Jin Yuyue , He Zhaoguo , Yu Jiang , Li Kun , Chen Zuzheng , Cui Jun 
Published: August 2023

AbstractAuroral brightening driven by interplanetary shocks on Earth's closed magnetic field lines is commonly attributed to the 0.1–10 keV electron precipitations by electron cyclotron harmonic waves and whistler‐mode chorus waves in the low‐density region. In contrast, we propose here a new candidate driver, high‐frequency whistlers in the high‐density plasmasphere. Theoretical calculations predict the comparable abilities of whistler‐mode waves with sufficiently high frequencies inside the plasmasphere and chorus waves outside to produce auroral electron precipitations. Such expected waves are further verified to exist following an interplanetary shock. The shock perpendicularly accelerated source electrons inside the plasmasphere and then produced strong high‐frequency whistler‐mode waves. These waves appeared as a hybrid of chorus and hiss in the frequency‐time spectrogram and probably resulted from a combination of linear and nonlinear instabilities. Our findings demonstrate that interplanetary shocks can promptly promote energy transfer toward the ionosphere from the inner high‐density magnetosphere.
Fe–Mg Isotopes Trace the Mechanism of Crustal Recycling and Arc Magmatic Processes in the Neo‐Tethys Subduction Zone
Authors: Chen Long , Li Dong‐Yong , Deng Jiang‐Hong , Li San‐Zhong , Somerville Ian , Chen Yi‐Xiang , Zhao Zi‐Fu , An Wei , Li Xiao‐Hui 
Published: August 2023

AbstractThere has been intense debate on the mechanism of crustal recycling in subduction zones, and Fe–Mg isotopes may provide new constraints on this issue. This study reports Fe–Mg isotope data for mafic plutonic rocks from the eastern and central Gangdese arc, along with their associated trench sediments in southern Tibet. The δ26Mg values of the eastern Gangdese arc rocks show negative correlations with (87Sr/86Sr)i and (206Pb/204Pb)i values, but positive correlations with εNd(t) and εHf(t) values. Conversely, the δ56Fe values of the eastern Gangdese arc rocks show positive correlations with (87Sr/86Sr)i and (206Pb/204Pb)i values, but negative correlations with εNd(t) and εHf(t) values. The Mg and Fe isotopic compositions of the central Gangdese arc rocks are comparable with those of the eastern ones, but they do not correlate with Sr–Pb–Nd–Hf isotopic compositions. Notably, the Fe–Mg isotopic compositions of most arc rocks fall between those of local trench sediments and the mantle wedge. Combined qualitative analyses and quantitative simulations suggest that: (a) the Fe–Mg isotope variations observed in the eastern Gangdese arc rocks highlight the important role of source mixing between sediment‐derived melts and peridotite, whereas (b) the Fe–Mg isotope variations observed in the central Gangdese arc rocks reflect the superposition of carbonated serpentinite‐derived Mg‐rich fluids‐peridotite source mixing and source melting. The strong correlations between Fe–Mg isotope ratios and traditional geochemical tracers provide further evidence for the recycling of crustal materials in subduction zones via various types of slab‐derived fluids and melts.
Influence of Clay‐Containing Sediments on Methane Hydrate Formation: Impacts on Kinetic Behavior and Gas Storage Capacity
Authors: Constant Agnissan Art‐Clarie , Guimpier Charlène , Terzariol Marco , Fandino Olivia , Chéron Sandrine , Riboulot Vincent , Desmedt Arnaud , Ruffine Livio 
Published: August 2023

AbstractOn Earth, natural hydrates are mostly encountered in clay‐rich sediments. Yet their formation processes in such matrices remain poorly understood. Achieving an in‐depth understanding of how methane hydrates accumulate on continental margins is key to accurately assess (a) their role in sustaining the development of some chemosynthetic communities at cold seeps, (b) their potential in terms of energy resources and geohazards, and (c) the fate of the methane releases, a powerful greenhouse gas, in this changing climate. This study investigated the formation of methane hydrates and their gas storage capacity (GSC) in clay‐rich sediments. A set of hydrate experiments were performed in matrices composed of sand, illite‐rich clay, and montmorillonite‐rich clay at different proportions aiming to determine the role of mineralogy on hydrate formation processes. The experiments demonstrate that a clay content of 10% in a partially water saturated sand/clay mixture increases the induction time by ∼60%, irrespective of the nature of the clay used. The increase in water saturation in the two matrices promotes hydrate formation. Micro‐Raman spectroscopic analyses reveal that increasing the clay content leads to a decrease in the hydrate small‐cage occupancy, with an impact on the storage capacity. Finally, the analyses of collected natural samples from the Black Sea (off Romania) enable us to estimate the GSC of the deposit. Our estimates is different from previous ones, and supports the importance of coupling multiscale properties, from the microscale to the geological scale, to accurately assess the total amount of methane hosts in hydrate deposits worldwide.
Four‐Beams‐Reconfigurable Circular‐Ring Array Antennas for Monopulse Radar Applications
Authors: Battaglia Giada M. , Isernia Tommaso , Palmeri Roberta , Morabito Andrea F. 
Published: August 2023

AbstractWe propose a new approach to the mask‐constrained power synthesis of reconfigurable circular‐ring array antennas for monopulse radar applications. By resorting to Orbital Angular Momentum vortex beams, and without increasing either the complexity of the beam forming network or the signal processing times with respect to the state‐of‐art solutions, the proposed method allows improving the precision pointing with respect to usual techniques. The overall synthesis is cast as a Convex Programming optimization problem aimed at reducing as much as possible the number of control points of the array, and it is tested in relevant application scenarios.
The use of neuroimaging techniques in the early and differential diagnosis of dementia
Authors: Chouliaras Leonidas , O’Brien John T. 
Published: August 2023

AbstractDementia is a leading cause of disability and death worldwide. At present there is no disease modifying treatment for any of the most common types of dementia such as Alzheimer’s disease (AD), Vascular dementia, Lewy Body Dementia (LBD) and Frontotemporal dementia (FTD). Early and accurate diagnosis of dementia subtype is critical to improving clinical care and developing better treatments. Structural and molecular imaging has contributed to a better understanding of the pathophysiology of neurodegenerative dementias and is increasingly being adopted into clinical practice for early and accurate diagnosis. In this review we summarise the contribution imaging has made with particular focus on multimodal magnetic resonance imaging (MRI) and positron emission tomography imaging (PET). Structural MRI is widely used in clinical practice and can help exclude reversible causes of memory problems but has relatively low sensitivity for the early and differential diagnosis of dementia subtypes. 18F-fluorodeoxyglucose PET has high sensitivity and specificity for AD and FTD, while PET with ligands for amyloid and tau can improve the differential diagnosis of AD and non-AD dementias, including recognition at prodromal stages. Dopaminergic imaging can assist with the diagnosis of LBD. The lack of a validated tracer for α-synuclein or TAR DNA-binding protein 43 (TDP-43) imaging remain notable gaps, though work is ongoing. Emerging PET tracers such as 11C-UCB-J for synaptic imaging may be sensitive early markers but overall larger longitudinal multi-centre cross diagnostic imaging studies are needed.