bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effects of temporal hydrologic shifts on the population biology of an endangered freshwater fish in a dryland river ecosystem
Authors: Richmond Jonathan Q. , Gould Philip R. , Pareti Jennifer , Aitken Andrew , Morrissette Eric , Backlin Adam R. , Dellith Chris , Fisher Robert N. 
Published: August 2024

AbstractSpecies occupying dryland river ecosystems often experience “boom‐and‐bust” demographic cycles that coincide with shifts in habitat availability. Knowing whether declines are within natural thresholds versus those caused by acute human disturbance is critical for managing protected species. We investigated temporal shifts in abundance and habitat use of an endangered population of the threespine stickleback Gasterosteus aculeatus in southern California, where a Mediterranean climate leads to ephemeral habitat in one of the regions' least hydrologically modified rivers, the Santa Clara River. We conducted population surveys over a period of below‐average rainfall in the upper watershed in Soledad Canyon, with predefined reaches surveyed multiple times per year to capture different hydrologic conditions. Abundances were stable across years but varied significantly depending on location, with some reaches remaining dry and others drying seasonally to varying degrees. Occupancy models showed that the presence of stable perennial reaches, drying regime, and other site‐specific factors were important predictors of habitat use, and that certain reaches may be key to ensuring source‐sink dynamics as flow dissipates over the dry season. Low occupancy in two sections was driven by different predominant mechanisms, one by diel cycles of evapotranspiration and the other by cattails (Typha spp.), with both having greater effects during the hotter, drier parts of the year. As dryland river ecosystems are vulnerable to the effects of anthropogenic‐induced climate change, this study demonstrates how temporal monitoring can delimit dry‐state benchmarks for improving management interventions (i.e., translocation and habitat restoration) for protected species under conditions that are predicted to worsen in the coming years.
Response of wild aquatic insect communities to thermal variation through comparative landscape transcriptomics
Authors: Gamboa Maribet , Gotoh Yusuke , Doloiras‐Laraño Arnelyn , Watanabe Kozo 
Published: August 2024

AbstractFluctuations in temperature are recognized as a potent driver of selection pressure, fostering genomic variations that are crucial for the adaptation and survival of organisms under selection. Notably, water temperature is a pivotal factor influencing aquatic organism persistence. By comprehending how aquatic organisms respond to shifts in water temperature, we can understand their potential physiological adaptations to environmental change in one or multiple species. This, in turn, contributes to the formulation of biologically relevant guidelines for the landscape scale transcriptome profile of organisms in lotic systems. Here, we investigated the distinct responses of seven stream stonefly species, collected from four geographical regions across Japan, to variations in temperature, including atmospheric and water temperatures. We achieved this by assessing the differences in gene expression through RNA‐sequencing within individual species and exploring the patterns of community‐genes among different species. We identified 735 genes that exhibited differential expressions across the temperature gradient. Remarkably, the community displayed expression levels differences of respiration and metabolic genes. Additionally, the diversity in molecular functions appeared to be linked to spatial variation, with water temperature differences potentially contributing to the overall functional diversity of genes. We found 22 community‐genes with consistent expression patterns among species in response to water temperature variations. These genes related to respiration, metabolism and development exhibited a clear gradient providing robust evidence of divergent adaptive responses to water temperature. Our findings underscore the differential adaptation of stonefly species to local environmental conditions, suggesting that shared responses in gene expression may occur across multiple species under similar environmental conditions. This study emphasizes the significance of considering various species when assessing the impacts of environmental changes on aquatic insect communities and understanding potential mechanisms to cope with such changes.
Construction of a Defective Chiral Covalent Organic Framework for Fluorescence Recognition of Amino Acids
Authors: Yuan Luhai , Tang Xihao , Zhang Kai , Chen Hong , Yang Xi , Fan Jun , Xie Mubiao , Zheng Shengrun , Cai Songliang 
Published: August 2024

AbstractThe design and synthesis of chiral covalent organic frameworks (COFs) with controlled defect sites are highly desirable but still remain largely unexplored. Herein, we report the synthesis of a defective chiral HD‐TAPB‐DMTP COF by modifying the chiral monomer helicid (HD) into the framework of an achiral imine‐linked TAPB‐DMTP COF using a chiral monomer exchange strategy. Upon the introduction of the chiral HD unit, the obtained defective chiral HD‐TAPB‐DMTP COF not only displays excellent crystallinity, large specific surface area (up to 2338 m2/g) and rich accessible chiral functional sites but also exhibits fluorescence emission, rendering it a good candidate for discrimination of amino acids. Notably, the resultant defective chiral HD‐TAPB‐DMTP COF can be used as a fluorescent sensor for enantioselective recognition of both tyrosine and phenylalanine enantiomers in water, showing enhanced fluorescent responses for the L conformations over those of the D conformations with the enantioselectivity factors being 1.84 and 2.02, respectively. Moreover, molecular docking simulations uncover that stronger binding affinities between chiral HD‐TAPB‐DMTP COF and L‐tyrosine/L‐phenylalanine in comparison to those with D‐tyrosine/D‐phenylalanine play important roles in enantioselective determination. This work provides new insights into the design and construction of highly porous defective chiral COFs for enantioselective fluorescence recognition of amino acids.
Bewertung und Ertüchtigung von Bestandsbrücken
Authors: Pelke Eberhard 
Published: August 2024

AbstractZwei historiografische Kurzskizzen führen in die Begrifflichkeiten von Instandsetzung, Zustands‐ und Tragfähigkeitsbewertung zwischen 1700 und 2010 ein und werfen einen Blick auf die Entwicklung des Nachrechnens von Brückenbeständen. Anhand von Projektskizzen werden die versteckten Sicherheiten von bestehenden Straßenbrücken herausgearbeitet und Vorgehensweisen zur Erzielung leistungsfähiger Bauwerksertüchtigungen abgeleitet. Reale objektspezifische Verkehrslastmodelle, messwertkalibrierte Tragwerksanalysen und additive und zerstörungsarme Verstärkungsmethoden stehen dabei im Mittelpunkt. Einige kritische Anmerkungen zu Planungsbeschleunigungen und dem derzeitigen Zulassungswesen zusammen mit dem Wunsch, dass sich der Brückenbau im gemeinsamen Leitziel „Verkehr“ wiederfinden möge, weiten die Defintion der Ertüchtigung ganzheitlich auf und bieten so die Chance, eine Diskussion über den sinnvollen Umgang mit Bestandsbrücken im Zuge unserer Straßeninfrastruktur anzuregen.
Development and Upscaling of a Waterborne Formulation for High‐Energy Density NMC811 Cathodes
Authors: Sananes‐Israel Susan , Urdampilleta Idoia , Kvasha Galyna , Landa‐Medrano Imanol , de Meatza Iratxe 
Published: August 2024

AbstractThe pursuit of high‐energy lithium‐ion cells has led to an increase in the fraction of nickel in the LiNixMnyCozO2 (NMC, with x+y+z=1) layered oxide, a state‐of‐the‐art cathode material in electric vehicles. NMC is usually processed using organic solvents that are non‐sustainable. Nevertheless, increasing the Ni fraction entails a decrease in the electrode stability and the processability of this material in water. In this work, high‐nickel NMC materials have been subjected to water processing. In an initial stage, water sensitivity of the materials has been studied. Then, the formulation has been adapted to enhance the NMC fraction without penalizations in the electrochemical performance and compared to an organic solvent‐based formulation. The recipe developed, consisting of 93 % of NMC, has been successfully upscaled to a semi‐industrial coating line. The pH buffering has been observed as a critical step to mitigate lithium leaching and implement this process in an industrial environment. The obtained electrodes have been tested in single‐layer pouch cells using silicon‐based negative electrodes, also processable in water‐based slurries. The resulting cells provide limited cycling life due to the low cyclability of the negative electrode but evidence that it is industrially viable to manufacture high‐energy cells consisting only of water‐processed electrodes.
Corporate business strategy, CEO's managerial ability, and environmental disclosure: The perspective of stakeholder theory
Authors: Cahyono Suham , Harymawan Iman , Djajadikerta Hadrian Geri , Noman Abu Hanifa Md. 
Published: August 2024

AbstractThe adoption of business strategies at the corporate level is often associated with the resource‐based view theory. However, many scholars have not definitively determined whether aligning business strategies with the principles of the resource‐based view theory is consistent with the perspective presented by stakeholder theory. This study examines the relationship between corporate business strategies and environmental disclosure. Specifically, we investigate whether CEO's managerial ability may strengthen the association by emphasizing stakeholder theory to address this inquiry. Using a sample of 1243 publicly traded companies registered with the Carbon Disclosure Project (CDP) from 2015 to 2021, our findings indicate that a firm's chosen business strategy significantly influences its environmental disclosure practices. In particular, we observe that firms pursuing an innovation‐oriented business strategy (prospectors) are less inclined to disclose, initiate, or increase their environmental disclosures compared with those following a cost‐efficient business strategy (defenders). To address endogeneity and ensure robustness, we conduct a battery of tests, including the entropy balancing approach, two‐step generalized method of the moment using Arellano‐Bond estimation, Heckman two‐stage regression, and coarsened exact matching. This study offers valuable insights into the determinants of firms' environmental disclosure practices, with significant implications for policymakers, investors, and other stakeholders interested in promoting sustainability and corporate responsibility.
Three Undescribed Furanoditerpenoids from the Tinospora crispa that Inhibit NO Production
Authors: Van Quoc Nguyen , Huu Tai Bui , Hai Yen Pham , Huy Hoang Nguyen , Thuy Hang Dan Thi , Thanh Huong Phan Thi , Anh Bang Ngo , Thi Dung Duong , Thi Trang Do , Giang Le Duc , Van Kiem Phan 
Published: August 2024

AbstractPhytochemical study on the methanol extract of the stems of Tinospora crispa (L.) Hook.f. & Thomson led to the isolation of thirteen compounds including three undescribed cis‐clerodane‐type furanoditerpenoids (1–3) and ten known ones (4–13). Their chemical structures were determined by IR, HR‐ESI‐MS, 1D‐, and 2D‐NMR spectra. Compounds 2–4, 6 and 8 inhibited moderately NO production in LPS activated RAW 264.7 cells with the IC50 values of 83.5, 57.6, 75.3, 78.1, and 74.7 μM, respectively.
N,S‐Doped Zeolite‐Templated Carbon Like Supported NixFeySz as an Efficient Bifunctional Catalyst for Rechargeable Zinc Air Batteries
Authors: Loupias Lola , Boulé Roald , Benbakoura Nora , Compère Steven , Rousseau Julie , Maziere Laetitia , Pailloux Frédéric , Mauchamp Vincent , Pacaud Jérôme , Célérier Stéphane , Servat Karine , Napporn Teko W. , Morais Claudia , Sachse Alexander , Habrioux Aurélien 
Published: August 2024

AbstractA still unexplored class of heterostructured bifunctional catalysts for oxygen evolution (OER) and reduction (ORR) reactions is investigated: Ni−Fe sulfides deposited onto a N,S‐co‐doped zeolite‐templated carbon (ZTC) substrate achieved upon the impregnation of a ZTC with thiourea and Ni and Fe precursors (Ni/Fe atomic ratio of 1). By heat‐treating the impregnated ZTC substrate at 700 °C under N2 atmosphere the efficient bifunctional catalyst is generated. A difference of only 0.76 V is measured between the potential required to drive an OER current density of 10 mA cm−2 and the ORR half‐wave potential. Using electrochemical measurements and physico‐chemical characterizations, it is evidenced that OER activity results from the presence of a sulfide containing both Fe and Ni whereas the ORR activity originates from the N,S‐doped ZTC substrate. The selectivity of the ORR process is improved through the presence of sulfide phases. Compared to more conventional carbon substrate such as N,S‐co‐doped reduced graphene oxide, high specific surface area ZTC favors high ORR performances. The functional ZTC material was further successfully implemented as bifunctional air electrode in a coin‐type Zn‐air battery.
(La0.8Sr0.2)0.95Mn0.5Fe0.5O3Perovskite as anEfficient Bi‐Functional Electrocatalyst for Oxygen‐Involved Reaction and Zn‐Air Batteries
Authors: Bao Xinjun , Xia Sunan , Hou Jiwei , He Guangjun , He Bin , Zhang Zejie , Zhou Debi , Wang Hong‐En 
Published: August 2024

AbstractThe perovskite‐type oxide (La0.8Sr0.2)0.95Mn0.5Fe0.5O3, synthesized using lanthanum resources recovered from polishing powder waste and manganese resources obtained from zinc anode mud, was obtained via a facile polymer‐assisted combustion method, and further applied in zinc‐air batteries.The crystal phase and microstructure features of the thus‐obtained nanoparticles were characterized using X‐ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X‐ray photoelectron spectroscopy (XPS), and nitrogen adsorption‐desorption measurements. The results showed that the (La0.8Sr0.2)0.95Mn0.5Fe0.5O3 particles, with nanoscale size, possess a high specific surface area and a suitable Mn3+/Mn4+ molar ratio, which will benefit both the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER). As expected, the thus‐fabricated (La0.8Sr0.2)0.95Mn0.5Fe0.5O3 electrode exhibits a high current density of 71.2 and 85.2 mA cm−2 at −0.2 V and 0.6 V vs. Hg/HgO, respectively, which is superior to that of the commercial Pt/C catalyst (58 and 31 mA cm−2, respectively).Subsequently, this compound oxide can be an air electrode in a rechargeable zinc‐air battery. The assembled battery, using (La0.8Sr0.2)0.95Mn0.5Fe0.5O3 as the cathode, exhibits a discharge voltage of 1.05~1.16 V and a charge voltage of 2.03~2.13 V under 15 mA cm−2 for 150 h.The excellent electrochemical results presented in this study highlight the potential of (La0.8Sr0.2)0.95Mn0.5Fe0.5O3 as a highly efficient and commercially viable bifunctional electrocatalyst for applications in rechargeable zinc‐air batteries.
Low‐temperature performance of Na‐ion batteries
Authors: Li Meng , Zhuo Haoxiang , Jing Qihang , Gu Yang , Liao Zhou , Wang Kuan , Hu Jiangtao , Geng Dongsheng , Sun Xueliang , Xiao Biwei 
Published: August 2024

AbstractSodium‐ion batteries (NIBs) have become an ideal alternative to lithium‐ion batteries in the field of electrochemical energy storage due to their abundant raw materials and cost‐effectiveness. With the progress of human society, the requirements for energy storage systems in extreme environments, such as deep‐sea exploration, aerospace missions, and tunnel operations, have become more stringent. The comprehensive performance of NIBs at low temperatures (LTs) has also become an important consideration. Under LT conditions, challenges such as increased viscosity of electrolyte, abnormal growth of solid electrolyte interface, and poor contact between collector and electrode materials emerge. The aforementioned issues hinder the diffusion kinetics of sodium ions (Na+) at the electrode/electrolyte interface and cause rapid degradation of battery performance. Consequently, the optimization of electrolyte composition and cathode/anode materials becomes an effective approach to improve LT performance. This review discusses the conduction behavior and limiting factors of Na+ in both solid electrodes and liquid electrolytes at LT. Furthermore, it systematically reviews the recent research progress of LT NIBs from three aspects: cathode materials, anode materials, and electrolyte components. This review aims to provide a valuable reference for developing high‐performance LT NIBs.
Synthesis of a Multi‐Stimulus Responsive RGB Fluorescent Organic Molecule Based on Dark Through‐Bond Energy Transfer Mechanism
Authors: Li Kuiliang , Xie Wenqiang , Zhang Minggui , Fu Dexin , Hu Duo‐Duo , Yang Ping 
Published: August 2024

AbstractIn this study, a novel multi‐stimulus responsive RGB fluorescent organic molecule, RTPE‐NH2, was designed and synthesized based on the combination of aggregation‐induced emission tetraphenylethylene (TPE) luminophore and acid‐responsive fluorescent molecular switch Rhodamine B. RTPE‐NH2 exhibits aggregation‐induced emission behavior, as well as UV irradiation‐stimulus and acid‐stimulus responsive fluorescence properties. It could emit orange‐red (R), green(G), and blue(B) light in both solution and PMMA film under 365 nm excitation. The dark through‐bond energy transfer (DTBET) mechanism was proposed and supported by control experiments and TD‐DFT calculations. The synthesis and application of RTPE‐NH2 could accelerate the development of organic smart materials with high sensitivity and excellent optical properties.
Visible‐Light Mediated Nickel‐Catalyzed Asymmetric Difunctionalizations of Alkenes
Authors: Zhao Han‐Tong , Lin Jia‐Ni , Shu Wei 
Published: August 2024

AbstractDifunctionalizations of alkenes represent one of the most straightforward protocols to build molecular complexity due to the simultaneous construction of two vicinal bonds cross π‐bond of alkenes. It is extremely attractive yet challenging to control the stereochemistry outcome of this event. Over the past years, visible‐light and Ni‐catalyzed asymmetric difunctionalizations of alkenes provide an environmental benign and promising solution for the construction of saturated carbon centers with the control of regio‐ and enantioselectivity. In this Concept, the initiative and progress of regio‐ and enantioselective difunctionalizations of alkenes enabled by visible‐light and nickel catalysis has been summarized. Moreover, further efforts and directions for the development of visible‐light mediated Ni‐catalyzed asymmetric difunctionalizations of alkenes has been discussed.
Synthesis and Anticancer Evaluation of Disubstituted Benzimidazoles via One‐Pot Telescopic Grinding Approach
Authors: Das Soumyadip , Thansila Parvin N. , Maiti Barnali , Padmaja R. D. , Prathima T. S. , Balamurali M. M. , Chanda Kaushik 
Published: August 2024

AbstractBenzimidazole compounds are known for their broad spectrum therapeutic potentials. A small library of benzimidazole derivatives were designed and synthesized via a one‐pot telescopic grinding approach. The ability of these molecules as proposed anticancer agents were evaluated by their potential to bind to two important cancer pathway protein targets, human estrogen receptors and cyclin dependant kinases, 3ERT and 5FGK respectively. Further nucleic acid binding and reactive oxygen species (ROS) scavenging capacity being in the scope for anticancer potential evaluations, the ability of these molecules have been evaluated for the same. Further, to support the experimental and computational results, AI‐assisted tools were employed to predict the anticancer activity (PASS) as well as to identify false positives (PAINS). Also, the druggability of the proposed compounds was evaluated by following their pharmacokinetic parameters – ADME.
Influence of 3D Structural Design on the Electrochemical Performance of Aluminum Metal as Negative Electrode for Li‐Ion Batteries
Authors: Ricci Marco , Marras Sergio , Krammer Martin , Palanivel Molaiyan , Proietti Zaccaria Remo , Paolella Andrea 
Published: August 2024

AbstractAluminum (Al) is one of the most promising active materials for producing next‐generation negative electrodes for lithium (Li)‐ion batteries. It features low density, high specific capacity, and low working potential, making it ideal for producing energy‐dense cells. However, this material loses its electrochemical activity within 100 cycles, making it practically unusable. Several claims in the literature support the idea that a dual degradation mechanism is at play. First, the slow diffusion of Li in the Al matrix causes the electrochemical reactions to be partly irreversible, making the initial capacity of the cell drop. Second, the stress caused by cycling make the active material pulverize and lose activity. Recent work shows that shortening the diffusion path of Li by 3D structuring is an effective way to mitigate the first capacity loss mechanism, while alloying Al with other elements effectively mitigates the second one. In this work, we demonstrate that the benefits of 3D structuring and alloying are cumulative and that a mesh made of an Al‐magnesium alloy performs better than both a pure Al foil and a foil of an Al−Mg alloy.
Cooperative Anion‐π and C−H−Cl Interactions in Multifunctional Naphthalene‐Based Receptors for Chloride Recognition: Cage‐Size Modulation Through Substitution Patterns
Authors: Zayene Olfa , Hu Jun , Damond Aurélie , Roc Chantal , Marrot Jérôme , Gaucher Anne , Salpin Jean‐Yves , Prim Damien 
Published: August 2024

AbstractThis study introduces a novel approach for chloride recognition utilizing multifunctional naphthalene‐based receptors. By strategically modifying the substitution patterns on tetrafluoropyridines, a series of new receptors with customized cavities and enhanced binding capabilities were developed. Density functional theory (DFT) calculations and experimental studies combining NMR spectroscopy and mass spectrometry confirmed the efficacy of these receptors in capturing chloride ions. The relative chloride affinity order determined experimentally is in agreement with DFT predictions. The synergistic effect of anion‐π and C‐H…Cl interactions, mediated by the TFP groups, played a crucial role in achieving high binding affinity. This work provides valuable insights for designing future anion receptors with improved performance.