bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effects of C and heat treatment on microstructure, mechanical, and tribo-corrosion properties of VAlTiMoSi high-entropy alloy coating
Authors: Fu Zhengyi , Ding Sansan , Tian Aiqin , Chen Dawei , Chen Xu , Lin Huaqiang , Li Zhongwen , Sun Xiaohong , Meng Xiangjian , Zhou Wei 
Published: June 2024

Abstract
High-entropy alloy (HEA) coatings have demonstrated great potential in anti-wear applications. To further improve the mechanical and tribo-corrosion properties of the HEA coatings, the VAlTiMoSi, (VAlTiMoSi)80C20, and (VAlTiMoSi)60C40 coatings were successfully deposited by DC magnetron sputtering. The microstructure, mechanical, and tribo-corrosion properties of as-deposited and heat-treated coatings were analyzed. All the as-deposited HEA coatings were BCC + amorphous phases. The thermal effect promoted the formation of intermetallic compounds, and the C inhibited the formation of Mo3Si and Ti5Si4. The hardness and elastic modulus of the heat-treated VAlTiMoSi coating were 20.1 and 294.0 GPa, respectively. The heat-treated (VAlTiMoSi)60C40 coating showed the lowest wear rate, namely 5.2 × 10−14 m3·Nm−1, and the best formation ability of passive film in 3.5 wt% NaCl solution.
Efecto de la fuente de carbohidratos sobre el balance energético-nitrogenado y las emisiones de metano de vacas lecheras lactantes
Authors: Posada-Ochoa Sandra L. , Rosero-Noguera Ricardo , Villegas-Henao Gustavo A. 
Published: June 2024

The chemical characteristics of Cenchrus clandestinus grass, nutritional base in dairy production systems, demand the energy supplementation. Corn grain is the most used food for this purpose, but considering its demand and prices, the objective of this work was to evaluate its partial replacement by alternative non-fibrous carbohydrates sources on methane emissions, energy and nitrogen balance and productive performance of dairy cows. Sixteen multiparous Holstein cows were fed Cenchrus clandestinus plus one of four concentrate supplements formulated with corn (Zea mays) or a partial replacement of corn with sorghum (Sorghum vulgare), cassava (Manihot esculenta) or citrus pulp (Citrus sp.). Inclusion of sorghum, cassava or citrus pulp did not affect dry matter intake, dry matter digestibility, enteric methane emissions, energy and nitrogen balance, milk yield or composition. The results allow to conclude that these ingredients can partially replace corn in the diet of lactating dairy cows.
Hospital Quality Indicators for Opioid-Exposed Infants: Results From an Expert Consensus Panel
Authors: Harrison Jordan M. , Stein Bradley D. , Loch Sarah F. , Lorch Scott A. , Patrick Stephen W. 
Published: June 2024

OBJECTIVE
To elicit expert consensus on quality indicators for the hospital-based care of opioid-exposed infants.

METHODS
We used the ExpertLens online platform to conduct a 3-round modified Delphi panel. Expert panelists included health care providers, parents in recovery, quality experts, and public health experts. We identified 49 candidate quality indicators from a literature review and environmental scan. A total of 32 experts rated the importance and feasibility of the indicators using a 9-point Likert scale (Round 1), reviewed and discussed the initial ratings (round 2), and revised their original ratings (Round 3). Numeric scores corresponded with descriptive ratings of “low” (1–3), “uncertain” (4–6), or “high” (7–9). We measured consensus using the RAND/UCLA Appropriateness Method.

RESULTS
Candidate quality indicators assessed structures, processes, and outcomes in multiple domains of clinical care. After the final round, 36 indicators were rated “high” on importance and feasibility. Experts had strong consensus on the importance of quality indicators to assess universal screening of pregnant people for substance use disorder, hospital staff training, standardized assessment for neonatal opioid withdrawal syndrome, nonpharmacologic interventions, and transitions of care. For indicators focused on processes and outcomes, experts saw feasibility as dependent on the information routinely documented in electronic medical records or billing records. To present a more complete picture of hospital quality, experts suggested development of composite measures that summarize quality across multiple indicators.

CONCLUSIONS
A panel of experts reached consensus on a range of quality indicators for hospital-based care of opioid-exposed infants, with potential for use in national benchmarking, intervention studies, or hospital performance measurement.
A Relationship between Classical and Bayesian Estimation Procedures through Fisher Information
Authors: Bhunia Shreya , Seal Babulal 
Published: June 2024

The aim of this article is to investigate the association between the classical and Bayesian approaches through Fisher information. For any particular distribution, the computation of Fisher information is quite significant, as it provides the amount of information about the unknown parameter inferred from the observed data and is related to classical methods of estimation. Also, in the light of some prior knowledge, we may estimate the unknown parameter through Bayesian approach. Specifically, we want to see a relationship between information and Bayes estimation. In this article, the scale parameter of the one-parameter exponential distribution is estimated under the weighted squared error and Kullback-Leibler distance loss functions. The information acquired from both the classical and Bayesian methodologies have been connected through the risk intensity and error intensity which have been introduced in this article. The results of extensive simulation studies using these intensity measures show that the Bayes estimator performs more intensely as the amount of Fisher information increases. It is seen that the Fisher information, which is pivotal to many classical estimation methods, has a relationship with the Bayesian method depending on prior distribution, at least in this case, as the intensity measures of the Bayes estimator decrease with the increase in information. Further, to comprehend the theoretical notion of association, two real-life datasets have been included to show usefulness in practical field.
Single-Station Back-Azimuth Determination with the Receiver Function Rotation Technique Validated by the Locations of Earthquakes, Impacts, and Explosions
Authors: Sun Weijia , Tkalčić Hrvoje , Tang Qingya 
Published: June 2024

Abstract
The success of seismometer installations on the ocean floor, polar regions, remote continental areas, and even other planets’ surfaces has sparked renewed interest in determining the location via the azimuthal direction of a seismic event recorded by a single station, also known as the back azimuth (BAZ). However, classical algorithms for the BAZ estimate, like principal component and polarization analyses based on P-wave particle motions, are prone to ambiguities of 180°. Motivated by the sensor orientation correction techniques used for ocean-bottom seismometers and land stations for known event locations, we explore a receiver function rotation (RFR) method to determine the BAZ for events recorded by a single station. It is a parameter search over a range of horizontal component rotation angles from 0° to 360°. The fundamental feature of the method is that the direct P wave in the radial receiver function (RF) will have the maximum amplitude when the rotation from the ZNE system (vertical, north–south, and east–west) to ZRT (vertical, radial, and tangential) is aligned with the BAZ of the incoming P wave. Hence, the largest amplitude at zero time of the ensemble of RFs computed for different horizontal component rotations shows the optimal BAZ, which is consequently free of the 180° ambiguities. The technique’s performance is validated using the well-documented location of the 2017 Democratic People’s Republic of Korea nuclear explosion and over 1200 cataloged earthquakes on the two permanent stations in Australia. We further benchmark the RFR algorithm by the locations of two ground-truth Martian impact events documented by the orbital camera and recorded by InSight’s seismometer. Our method helps enhance the reliability of BAZ estimation as a complementary scheme to other methods. It can be used in remote areas on Earth and on the future missions to the Moon and other planets.
THE GLOBAL PHENOMENON OF CRYPTOCURRENCIES: COMPARA TIVE ANALYSIS OF MARKET TRENDS IN RUSSIA AND THE WORLD
Authors: Афанасьев Д.Г. 
Published: June 2024

В статье рассматриваются понятие и виды криптовалют, анализируется нормативно-правовая база технологии блокчейн в России и за рубежом, а также исследуются перспективы развития криптовалют. В статье представлен подробный обзор криптовалют и их различных видов, включая Bitcoin, Ethereum и Ripple. Обсуждаются преимущества и проблемы, связанные с использованием криптовалют, такие как их децентрализованный характер, анонимность и проблемы регулирования. Анализируются усилия российского правительства по разработке нормативной базы для блокчейна и криптовалют, включая принятие закона «О цифровых финансовых активах», который призван регулировать выпуск, распространение и обмен цифровых финансовых активов в России.
The article examines the concept and types of cryptocurrencies, analyzes the regulatory framework of blockchain technology in Russia and abroad, and explores the prospects of cryptocurrency development. Th e article provides a detailed overview of cryptocurrencies and their various types, including Bitcoin, Ethereum and Ripple, discusses the advantages and problems associated with the use of cryptocurrencies, such as their decentralized nature, anonymity, and regulatory issues. The author analyzes the Russian government’s efforts to develop a regulatory framework for blockchain and cryptocurrencies, including the adoption of the law “On Digital Financial Assets”, which is intended to regulate the issuance, distribution and exchange of digital financial assets in Russia.
BASIC SCHOOLS OF THE RUSSIAN ACADEMY OF SCIENCES: RESULTSBASED MANAGEMENT
Authors: Химиченко А.А. 
Published: June 2024

В статье представлен опыт реализации федерального проекта «Базовые школы РАН» (на примере Московской области), проведен анализ экономической и образовательной деятельности общеобразовательных организаций на основе результатов государственной итоговой аттестации, участия учащихся в олимпиадах и конкурсах, проектно-исследовательской деятельности обучающихся и педагогов, публикационной активности и привлечения ученых РАН для организации учебно-воспитательного процесса в общеобразовательной организации. На основании предложенных критериев оценки деятельности общеобразовательных организаций, участвующих в реализации проекта, определены школы-лидеры, которые активно вовлекаются в процесс диссеминации управленческих и педагогических практик в учреждения региона.
The article presents the experience in implementation of the federal project “Basic Schools of the Russian Academy of Sciences” (on the example of the Moscow region). analyzes economic and educational activity on the basis of the state final attestation results, students’ participation in Olympiads and competitions, students’ and teachers’ project and research activities, publication activity and involvement of scientists of the Russian Academy of Sciences for organising the educational process in general education school. Based on the proposed criteria for assessing the activity of educational organisations participating in the project, we have identified the leading schools, which are intensively involved in the dissemination of management and pedagogical practices for institutions in the region.
In vino veritas, in aqua sanitas. La poétique sympotique dans le poème Tempus fugit (conte) de Tadeusz Różewicz
Authors: Hobot-Marcinek Joanna 
Published: June 2024

Le sujet des présentes réflexions est le phénomène et le topos du symposion et ses réinterprétations contemporaines dans les œuvres séniles de Tadeusz Różewicz. Dans ses œuvres tardives, le poète joue volontiers le rôle de sage et de bouffon, alliant le sérieux à la gaieté et le trivial au sublime. Les références de Różewicz aux règles de la poétique sympotique et le jeu du poète avec les conventions sympotiques sont un élément clé du poème tempus fugit (conte), qui est une référence littéraire au Banquet de Platon, au Banquet des savants d’Athénée et au Banquet de Xénophon. Le poème tempus fugit (conte) est donc une description de débats humoristiques et intellectuels sur la cuisine, les arts visuels, la littérature ou la philosophie, menés par le poète avec ses amis Ryszard Przybylski (essayiste, traducteur, historien des littératures polonaise et russe), Piotr Lachmann (metteur en scène et fondateur du théâtre expérimental « Poza ») et Jerzy Nowosielski (peintre, scénographe, théologien orthodoxe et créateur d’icônes). Le contexte interprétatif du poème dont il est question dans l’article est la correspondance à long terme du poète avec Ryszard Przybylski et son essai critique « Notes à Nowosielski ».
BESS Revolutionizes Renewable Stability in Indonesia
Authors: Zuhri Muhamad Saifudin , Jamaluddin Jamaluddin , Ayuni Shazana Dhiya , Anshory Izza 
Published: June 2024

This study examines the integration of Battery Energy Storage Systems (BESS) with Solar Power Plants (PLTS) to enhance electrical grid stability in Indonesia, where 90% of electricity is from fossil fuels. The intermittent nature of PLTS often destabilizes the network, causing frequency hunting or blackouts. Using Etap 12.6 software, simulations showed that adding BESS to hybrid PLTS-PLTD systems significantly mitigates these issues. For instance, a 50% drop in PLTS power without BESS required a 55% increase in PLTD power, but with BESS, this increase was only 34%. Thus, BESS is crucial for stabilizing renewable energy integration and supporting Indonesia’s Net-Zero Emissions goal.
Highlights:

BESS Stabilizes Power: Reduces impact of PLTS power fluctuations on PLTD.
Simulation Insight: 50% PLTS drop increases PLTD by 34% with BESS.
Net-Zero Goal: BESS supports Indonesia’s renewable energy and emission targets.

Keywords: Renewable Energy, Solar Power, Battery Storage, Electrical Grid Stability, Indonesia
The role of secondary metabolites of Pontederia parviflora Alexander and Salvinia auriculata Aubl. in phytoremediation of cadmium contaminated water
Authors: Rodrigues Augusto César , Nocchi Samara Requena , Raposo Jorge , Nascimento Valter Aragão , Carollo Carlos Alexandre 
Published: June 2024

Abstract

Heavy metals represent a serious source of water and soil contamination, mainly due to their non-biodegradable nature. Their bioaccumulation occurs in plants and other trophic levels, including animals, consequently affecting humans and causing various side effects. Phytoremediation offers a biological, cost-effective, and environmentally friendly cleaning solution, utilizing plants to remove contaminants from soil and water. This study aims to establish the chemical composition of Pontederia parviflora and Salvinia auriculata using liquid chromatography and evaluate the role of their secondary metabolites in passive phytoremediation by these plants. Although the results are not aligned with the initial hypothesis of metal removal from the liquid medium (sequestration and chelation of metals), the amount of metal removed still represents a positive outlook for technique enhancement. Furthermore, this research challenges the notion presented in the literature, as secondary metabolites were considered contaminant sequesters. The removal of these metabolites from the biomass of these macrophytes did not significantly impact their phytoremediation performance.
Research on Risk Factors Identification and Action Pathways of Mangrove Carbon Sink Projects from the Perspective of Supply Entities
Authors: He Yixiong , Wang Yanwei , Xie Sumei 
Published: June 2024

Abstract

Mangrove carbon sink is one of important and strategic ways of addressing the problem of carbon emissions, and mangrove carbon sink projects are important carriers to realize the value of mangrove carbon sink. There are various risks involved in the process of developing mangrove carbon sink projects as they will have a significant impact on the successful development of these projects. From the perspective of the supply entities, this article divides the entire life cycle of mangrove carbon sink projects into five stages: (1) decision stage, (2) design stage, (3) construction stage, (4) verification and filing stage, and (5) operation and maintenance stage. With the goal of achieving project success a risk measurement and evaluation model is hereby established, and the impact paths and coefficients of 61 risk factors in the entire life cycle of mangrove carbon sink projects are obtained. The research results indicate that: (a) different life cycle stages exhibit different risk impact paths and coefficients, with the design stage and the operation and maintenance stage bearing the greatest impact of risk in the project; (b) for mangrove carbon sink projects, policy risks, technical risks, and market risks are the three major types of risks that require special attention; (c) about 1/4 of all the risk factors belong to the category of first level risk. These research results can provide a theoretical basis for the effective implementation of risk management plans for mangrove carbon sink projects, so as to ensure greater project effectiveness, promote the development of mangrove carbon sink projects, and ultimately contribute to the realization of the goal of carbon neutrality.
Rapid Development of a Registry to Accelerate COVID-19 Vaccine Clinical Trials
Authors: Kublin James , Abernethy Neil , McCloskey Kylie , Trahey Meg , Rinn Laurie , Broder Gail , Andrasik Michele , Laborde Rebecca , McGhan Daniel , Spendolini Scott , Marimuthu Senthil , Kanzmeier Adam , Hanes Jayson 
Published: June 2024

Abstract

Background
The unprecedented scientific response to the SARS-Cov-2 pandemic in 2020 required the rapid development and activation of extensive clinical trial networks to study vaccines and therapeutics. The COVID-19 Prevention Network (CoVPN) coordinated hundreds of sites conducting phase 2 and 3 clinical trials of vaccines and antibody therapeutics. To facilitate these clinical trials, the CoVPN Volunteer Screening Registry (VSR) was created to collect volunteer information at scale, identify volunteers at risk of COVID-19 who met enrollment criteria, distribute candidates across clinical trial sites, and enable monitoring of volunteering and enrollment progress.
Methods
We developed a secure database to support three primary web-based interfaces: a national volunteer questionnaire intake form, a clinical trial site portal, and an Administrative Portal. The Site Portal supported filters based on volunteer attributes, visual analytics, enrollment status tracking, geographic search, and clinical risk prediction. The Administrative Portal supported oversight and development with pre-specified reports aggregated by geography, trial, and trial site; charts of volunteer rates over time; volunteer risk score calculation; and dynamic, user-defined reports.
Findings
Over 650,000 volunteers joined the VSR, and 1094 users were trained to utilize the system. The VSR played a key role in recruitment for the Moderna, Oxford-AstraZeneca, Janssen, and Novavax vaccine clinical trials, provided support to the Pfizer and Sanofi vaccine and prophylactic antibody clinical trials, and enhanced the diversity of trial participants. Clinical trial sites selected 166,729 volunteer records for follow-up screening, and of these 47·7% represented groups prioritized for increased enrollment. Despite the unprecedented urgency of its development, the system maintained 99·99% uptime.
Interpretation
The success of the VSR demonstrates that information tools can be rapidly yet safely developed through a public-private partnership and integrated into a distributed and accelerated clinical trial setting. We further summarize the requirements, design, and development of the system, and discuss lessons learned for future pandemic preparedness.
Macro Watershed Management- Flood Forecasting for Rivers, Gumara and Megech Employing Flood Frequency Analysis, Upper Blue Nile Basin, Ethiopia
Authors: Endalew Walelign Kassie 
Published: June 2024

Abstract

Adverse Climate variations are adversely impacting the hydrological cycles which is causing abnormal flooding and drought conditions in the region, including Ethiopia. Severe environmental and socioeconomic consequences result from extreme weather occurrences like floods. Therefore, evidence-based hydrological data is essentially required for accurate estimations of extreme events (flood and drought) predictions for prudent management of available water resources. When managing and developing water resources, accurate flood predictions and peak flow estimations are crucial. Flooding is one of the major problems in Ethiopia. Over the past few decades, both frequency and magnitude have quickly grown in scope and complexity. Both changes in land use and climate change are the main drivers for the flooding scenarios in the country. The flood frequency analysis methods were used for forecasting the incoming flood of the two rivers. The result of the study shows that General Parto and General logistic distributions are the best-fitted probability distributions for the Gumera and Megech Rivers. Using these best-fit probability distributions, flood magnitudes for 10, 25, 50, 100, and 200-year return periods were forecasted. The result also shows the incoming flood increased from 310.8 (10-year return period) to 413.3 (200-year return period) in Gumara River and increased from 245.3 (10-year return period) to 323.7 (200-year return period) in Megech River.
Morphological and phylogenetic analyses reveal the taxonomic distinctiveness between Nymphaea pygmaea and N. tetragona (Nymphaeaceae)
Authors: Naito Hanaka , Kato Syou , Shutoh Kohtaroh , Shiga Takashi 
Published: June 2024

Abstract

In this study, we aimed to clarify the taxonomic identity between Nymphaea tetragona, which has a red to purple stigmatic disk and the widest distribution range among the genus, and Nymphaea pygmaea, which has a yellow stigmatic disk and is ordinarily treated as a synonym of N. tetragona, based on detailed morphological measurements and phylogenetic analyses. Through morphological analysis, we assessed 26 quantitative characters of 111 individuals from 15 populations. Seventeen characters were significantly different between the two species; however, these characters overlapped. Principal component analysis based on 13 morphological characters revealed different trends in the morphology of the two species. In DNA analysis, one nuclear ribosomal DNA region, internal transcribed spacer (ITS) region, and one chloroplast DNA region (rps4-trnF) were compared. The ITS region showed differences in 18–19 substitutions and two indels between N. pygmaea and N. tetragona. Additionally, the two species were closely related within the subgenus Nymphaea, and N. tetragona and Nymphaea leibergii formed a robust monophyletic group with N. pygmaea as a sister taxon. These results indicate that N. tetragona and N. pygmaea have differentiated morphologically and genetically, thus making these two species taxonomically distinct.