bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ultrasonically Deposited Boron‐Doped Silicon Decorated with Laser‐Generated Iridium Nanoparticles as Manufacturing Approach for OER Electrodes in PEM Water Electrolysis
Authors: Kazamer Norbert , Tack Meike , Spree Mathias , Underberg Martin , Rost Ulrich , Reichenberger Sven , Cieluch Maximilian , Salih Haujin , Wirkert Florian , Böhm Leonard , Roth Jeffrey , Nallathambi Varatharaja , Gault Baptiste , Baer Christoph , Orend Kerstin , Barcikowski Stephan , Hülser Tim , Brodmann Michael 
Published: January 2025

AbstractThe study introduces flexible and scalable manufacturing approach for electrodes utilizing boron‐doped silicon as conductive support for iridium nanoparticles, addressing the challenges of cost and scarcity associated wit noble catalysts for oxygen evolution reaction (OER). Colloidal Ir nanoparticles are synthesized via pulsed‐laser ablation (≈4–7 nm) and decorated on B‐doped Si (≈100 nm) through electrostatic adsorption. Titanium substrates are ultrasonically sprayed with Si:B – Ir and Ir nanoparticles with very low iridium loading of 12 wt.%. Crystalline Ir phases (Ir(111), Ir(200)) are observed and known to enhance the OER mechanism. Additionally, atom probe tomography confirms that the Si support particles contained 0.03‐0.5 at% of boron throughout the entire particle, while electrical permittivity and through‐plane measurements reveal a positive impact of B‐doped Si on the electrical conductivity of the nanocatalysts and of the ultralow‐loaded catalyst coated Ti substrates (0.12 mgIr cm−2), respectively. Rotating disk electrode results show pronounced oxidation peaks for decorated Ir nanoparticles. The Si:B‐Ir 4 nm catalyst exhibits the highest turonover frequency (2.62 s⁻¹) and a competitive electrochemical surface area (25 m2 gIr−1) compared to Si:B‐Ir 7 nm (0.96 s⁻¹; 37.5 m2 gIr−1) and Ir black (0.24 s⁻¹; 5 m2 gIr−1). The overall analysis of the parameters highlights a performant catalytic efficiency, through balancing activity and reaction kinetics effectively.
Time‐Resolved and Blue‐Shifted Pure Room‐Temperature Phosphorescence by Dynamic Isolation of Triplet Exciton in Crystal
Authors: Wang Yike , Zhang Longyan , Zhang Jingyu , Sun Chengxi , Lv Qixin , Cui Dongyue , Li Ping , Zheng Chao , Chen Runfeng 
Published: January 2025

AbstractOrganic room‐temperature phosphorescence (RTP) with rich photophysical properties has attracted great interest, but it remains a big challenge to realize pure RTP without fluorescence in steady‐state photoluminescence (SSPL) and blue‐shifted RTP that intrinsically restricted by the spin‐forbidden intersystem crossing (ISC) and the radiative decay of the low‐lying triplet excited state. Herein, two fluorescence‐free RTP molecules based on β‐diketone‐bridged phenoselenazine/phenothiazine are developed, which contain either Se or S heteroatom in the phosphor to significantly promote ISC; and, both isolated and J‐aggregated phosphors are formed in crystal, where the J‐aggregation can not only facilitate the ISC for pure RTP but also strength the emission for high phosphorescent quantum yield of 22.3%, while the isolated phosphor affords longer RTP lifetime up to 131 ms. Excitingly, blue‐shifted (35 nm compare to SSPL) pure RTP from yellow‐green (525 nm) to cyan (490 nm) that dynamically depending on the time and temperature is observed for the first time. Experimental and theoretical results indicate that the regulation of time/temperature‐dependent RTP is attributed to the different lifetimes of the isolated and aggregated emission owing to the dynamic competition between different accumulation modes of phosphors in crystal aided by the interrupted conjugation by the sp3 C of β‐diketone.
Band Tailoring Enabled Perovskite Devices for X‐Ray to Near‐Infrared Photodetection
Authors: He Yi‐Chu , Dun Guan‐Hua , Deng Jun , Peng Jia‐Li , Qin Ken , Zhang Jia‐He , Geng Xiang‐Shun , Zhang Min‐Shu , Wang Ze‐Shu , Xie Yan , Bai Zhao‐Qiang , Xie Dan , Tian He , Yang Yi , Ren Tian‐Ling 
Published: January 2025

AbstractPerovskite semiconductors have shown significant promise for photodetection due to their low effective carrier masses and long carrier lifetimes. However, achieving balanced detection across a broad spectrum—from X‐rays to infrared—within a single perovskite photodetector presents challenges. These challenges stem from conflicting requirements for different wavelength ranges, such as the narrow bandgap needed for infrared detection and the low dark current necessary for X‐ray sensitivity. To address this, this study have designed a type‐II FAPbI3 perovskite‐based heterojunction featuring a large energy band offset utilizing narrow bandgap tellurium (Te) semiconductor. This innovative design broadens the detection range into the infrared while simultaneously reducing dark current noise. As‐designed device allows for the detection of near infrared band, achieving a detectivity of 6.8 × 109 Jones at 1550 nm. The low dark current enables X‐ray sensitivity of up to 1885.1 µC Gy⁻¹ cm⁻2. First‐principles calculations confirm the type‐II band structure alignment of the heterojunction, and a self‐driven response behavior is realized. Moreover, this study have developed a scalable 40 × 1 sensor array, demonstrating the potential for wide‐spectrum imaging applications. This work is expected to advance the application of perovskite‐based wide‐spectrum devices.
Multimodal imaging of murine cerebrovascular dynamics induced by transcranial pulse stimulation
Authors: Karakatsani Maria Eleni , Nozdriukhin Daniil , Tiemann Savannah , Yoshihara Hikari A. I. , Storz Rafael , Belau Markus , Ni Ruiqing , Razansky Daniel , Deán‐Ben Xosé Luís 
Published: January 2025

AbstractINTRODUCTIONTranscranial pulse stimulation (TPS) is increasingly being investigated as a promising potential treatment for Alzheimer's disease (AD). Although the safety and preliminary clinical efficacy of TPS short pulses have been supported by neuropsychological scores in treated AD patients, its fundamental mechanisms are uncharted.METHODSHerein, we used a multi‐modal preclinical imaging platform combining real‐time volumetric optoacoustic tomography, contrast‐enhanced magnetic resonance imaging, and ex vivo immunofluorescence to comprehensively analyze structural and hemodynamic effects induced by TPS. Cohorts of healthy and AD transgenic mice were imaged during and after TPS exposure at various per‐pulse energy levels.RESULTSTPS enhanced the microvascular network, whereas the blood–brain barrier remained intact following the procedure. Notably, higher pulse energies were necessary to induce hemodynamic changes in AD mice, arguably due to their impacted vessels.DISCUSSIONThese findings shed light on cerebrovascular dynamics induced by TPS treatment, and hence are expected to assist improving safety and therapeutic outcomes.Highlights
Transcranial pulse stimulation (TPS) facilitates transcranial wave propagation using short pulses to avoid tissue heating.
Preclinical multi‐modal imaging combines real‐time volumetric optoacoustic (OA) tomography, contrast‐enhanced magnetic resonance imaging (CE‐MRI), and ex vivo immunofluorescence to comprehensively analyze structural and hemodynamic effects induced by TPS.
Blood volume enhancement in microvascular networks was reproducibly observed with real‐time OA imaging during TPS stimulation.
CE‐MRI and gross pathology further confirmed that the brain architecture was maintained intact without blood–brain barrier (BBB) opening after TPS exposure, thus validating the safety of the procedure.
Higher pulse energies were necessary to induce hemodynamic changes in AD compared to wild‐type animals, arguably due to their pathological vessels.
Leveraging Iron in the Electrolyte to Improve Oxygen Evolution Reaction Performance: Fundamentals, Strategies, and Perspectives
Authors: Li Haiyan , Zhang Yuwei , Chen Yubo , Li Yang , Li Zhongjian , Yang Bin , Zhang Qinghua , Lu Jianguo , Lei Lecheng , Xu Zhichuan J. , Hou Yang 
Published: January 2025

AbstractElectrochemical water splitting is a pivotal technology for storing intermittent electricity from renewable sources into hydrogen fuel. However, its overall energy efficiency is impeded by the sluggish oxygen evolution reaction (OER) at the anode. In the quest to design high‐performance anode catalysts for driving the OER under non‐acidic conditions, iron (Fe) has emerged as a crucial element. Although the profound impact of adventitious electrolyte Fen+ species on OER catalysis had been reported forty years ago, recent interest in tailoring the electrode‐electrolyte interface has spurred studies on the controlled introduction of Fe ions into the electrolyte to improve OER performance. During the catalytic process, scenarios where the rate of Fen+ deposition on a specific host material outruns that of dissolution pave the way for establishing highly efficient and dynamically stable electrochemical interfaces for long‐term steady operation. This review systematically summarizes recent endeavors devoted to elucidating the behaviors of in situ Fe(aq.) incorporation, the role of incorporated Fe sites in the OER, and critical factors influencing the interplay between the electrode surface and Fe ions in the electrolyte environment. Finally, unexplored issues related to comprehensively understanding and leveraging the dynamic exchange of Fen+ at the interface for improved OER catalysis are summarized.
Defect‐Induced Electron Localization Promotes D2O Dissociation and Nitrile Adsorption for Deuterated Amines
Authors: Li Rui , He Meng , Cheng Chuanqi , Chen Fanpeng , Yang Lijun , Cui Jian‐Zhong , Liu Cuibo , Zhang Bin 
Published: January 2025

AbstractElectrochemical reductive deuteration of nitriles is a promising strategy for synthesizing deuterated amines with D2O as the deuterated source. However, this reaction suffers from high overpotentials owing to the sluggish D2O dissociation kinetics and high thermodynamic stability of the C≡N triple bond. Here, low‐coordinated copper (LC−Cu) is designed to decrease the overpotential for the electrosynthesis of the precursor of Melatonin‐d4, 5‐methoxytryptamine‐d4, by 100 mV with a 68 % yield (Faradaic efficiency), which is 4 times greater than that of high‐coordinated copper (HC−Cu). The low coordinated sites induced an enrichment of electrons to concentrate K+ ions hydrated deuterium water (K⋅D2O) and decrease the energy of the Volmer step via the polarization effect, leading to a continuous supplementation of *D for the reductive deuteration of nitriles. Moreover, the enhanced local electric field changes the adsorption configuration of nitriles from a semibridge model to a flat model, leading to faster reduction kinetics of nitriles with a high reaction rate at lower potentials. High deuterium incorporation, a wide substrate scope, and easy gram‐scale synthesis over LC−Cu at 300 mA rationalize the design concept. Furthermore, the enhanced antitumor and antioxidation effects of Melatonin‐d4 highlight the great promise of deuterated drugs.
Evaluating the linguistic coverage of OpenAlex: An assessment of metadata accuracy and completeness
Authors: Céspedes Lucía , Kozlowski Diego , Pradier Carolina , Sainte‐Marie Maxime Holmberg , Shokida Natsumi Solange , Benz Pierre , Poitras Constance , Ninkov Anton Boudreau , Ebrahimy Saeideh , Ayeni Philips , Filali Sarra , Li Bing , Larivière Vincent 
Published: January 2025

AbstractClarivate's Web of Science (WoS) and Elsevier's Scopus have been for decades the main sources of bibliometric information. Although highly curated, these closed, proprietary databases are largely biased toward English‐language publications, underestimating the use of other languages in research dissemination. Launched in 2022, OpenAlex promised comprehensive, inclusive, and open‐source research information. While already in use by scholars and research institutions, the quality of its metadata is currently still being assessed. This paper contributes to this literature by assessing the completeness and accuracy of OpenAlex's metadata related to language, through a comparison with WoS, as well as an in‐depth manual validation of a sample of 6836 articles. Results show that OpenAlex exhibits a far more balanced linguistic coverage than WoS. However, language metadata are not always accurate, which leads OpenAlex to overestimate the place of English while underestimating that of other languages. If used critically, OpenAlex can provide comprehensive and representative analyses of languages used for scholarly publishing, but more work is needed at infrastructural level to ensure the quality of metadata on language.
Unlocking the Photoluminescence and Photostability of Au11 Clusters through Pt‐Mediated Band‐Gap Engineering
Authors: Raufman Benjamin , Aligholizadeh Dariush , Connolly Catherine , Oliver Allen G. , Zhukovskyi Maksym , Qureshi Zaid S. , Topka Samantha , Sajini Devadas Mary 
Published: January 2025

AbstractAu nanoclusters often demonstrate useful optical properties such as visible/near‐infrared photoluminescence, in addition to remarkable thermodynamic stability owing to their superatomic behavior. The smallest of the 8e− superatomic Au nanoclusters, Au11, has limited applications due to its lack of luminescence and relatively low stability. In this work, we investigate the introduction of a single Pt dopant to the center of a halide‐ and triphenylphosphine‐ligated Au11 nanocluster, affording a cluster with a proposed molecular formula PtAu10(PPh3)7Br3. Electrochemical and spectroscopic analysis reveal an expansion of the HOMO–LUMO gap due to the Pt dopant, as well as relatively strong near‐infrared (NIR) photoluminescence which is atypical for an M11 cluster (λmax = 700 nm, Φ = 1.88 %). The Pt dopant additionally boosted photostability; more than tenfold. Lastly, we demonstrate the application of the PtAu10 cluster's NIR photoluminescence in the detection of the nitroaromatic compound 2,4‐dinitrotoluene, with a limit‐of‐detection of 9.52 μM (1.74 ppm). The notable ability of a single central Pt dopant to unlock photoluminescence in a non‐luminescent nanocluster highlights the advantages of heterometal doping in the tuning of both the optical and thermodynamic properties of Au nanoclusters.
Convective forces contribute to post‐traumatic degeneration after spinal cord injury
Authors: Kwon Hoi Y. , Streilein Christopher , Cornelison R. Chase 
Published: January 2025

AbstractSpinal cord injury (SCI) initiates a complex cascade of chemical and biophysical phenomena that result in tissue swelling, progressive neural degeneration, and formation of a fluid‐filled cavity. Previous studies show fluid pressure above the spinal cord (supraspinal) is elevated for at least 3 days after injury and contributes to a phase of damage called secondary injury. Currently, it is unknown how fluid forces within the spinal cord itself (interstitial) are affected by SCI and if they contribute to secondary injury. We find spinal interstitial pressure increases from −3 mmHg in the naive cord to a peak of 13 mmHg at 3 days post‐injury (DPI) but relatively normalizes to 2 mmHg by 7 DPI. A computational fluid dynamics model predicts interstitial flow velocities up to 0.9 μm/s at 3 DPI, returning to near baseline by 7 DPI. By quantifying vascular leakage of Evans Blue dye after a cervical hemi‐contusion in rats, we confirm an increase in dye infiltration at 3 DPI compared to 7 DPI, suggestive of higher fluid velocities at the time of peak fluid pressure. In vivo expression of the apoptosis marker caspase‐3 is strongly correlated with regions of interstitial flow at 3 DPI, and exogenously enhancing interstitial flow exacerbates tissue damage. In vitro, we show overnight exposure of neuronal cells to low pathological shear stress (0.1 dynes/cm2) significantly reduces cell count and neurite length. Collectively, these results indicate that interstitial fluid flow and shear stress may play a detrimental role in post‐traumatic neural degeneration.
Programming Green Light‐Responsive Hydrogels: From Photo‐Weakening to Photo‐Unresponsiveness and Photo‐Strengthening
Authors: Frank Saskia , Wegner Seraphine V. 
Published: January 2025

AbstractLight‐responsive hydrogels are highly valued for their dynamic mechanical properties and biocompatibility. In this study, we present a hydrogel system that can either soften or strengthen on green light exposure, or remain unresponsive to light, depending on the addition of adenosyl cobalamin (AdoCbl) and Co2+. These protein‐based hydrogels were formed using genetically encoded SpyTag‐SpyCatcher chemistry and included green light‐sensitive CarHc protein domains. As previously reported, these hydrogels formed in the dark with the addition of AdoCbl, due to the tetramerization of the CarHc domains. Upon green light exposure, the CarHc tetramers disassembled, leading to a rapid transition from gel to sol. Interestingly, we discovered that an excess of AdoCbl leads to photo‐strengthening rather than photo‐weakening. This occurred because light exposure induces interchain crosslinks between AdoCbl and poly‐histidine tags (His6‐tags) of the proteins. Furthermore, incorporating Co2+ ions enhanced hydrogel stiffness by coordinating to His6‐tags. This not only suppressed photo‐weakening but also promoted photo‐strengthening behaviour. These findings highlight the role of His6‐tags in photochemical crosslinking with excess AdoCbl and in coordination to Co2+ ions, providing a novel strategy for designing tuneable, light responsiveness in materials.
Decoupling in Sustainability Reporting: A Systematic Literature Review
Authors: Cepêda Catarina , Monteiro Albertina Paula , Aibar‐Guzmán Beatriz 
Published: January 2025

ABSTRACTDecoupling in sustainability reporting raises concerns about the credibility of sustainability disclosures. This study conducts a bibliometric review of 74 articles from 44 journals indexed in the Web of Science up to 2023, tracking key trends. The findings reveal two phases in research: an erratic growth from 2012 to 2017, followed by a surge from 2018 to 2023, with almost half of the publications in the last two years. Regulatory frameworks, particularly Directive 2014/95/EU, have notably influenced decoupling practises. Researchers use different proxies to measure decoupling, diverse theoretical lenses and empirical approaches, with China emerging as the most studied country. This study identifies five main research streams: characterisation, drivers, mitigating factors, impacts, and alternative views. Complementary analysis of recent publications confirms this trend, with the largest number of articles being published in 2024. The study contributes to the debate on the implications of decoupling for corporate transparency and accountability.
A novel method for objective quantification of apathy based on gaze and physiological reactivity to stimuli presented in a virtual reality environment
Authors: Ravona‐Springer Ramit , Koren Or , Galor Noam , Lapid Michal , Bahat Yotam , Fluss Ronen , Wilf Meytal , Zorani Shlomit , Rosenblum Uri , Beeri Michal Schnaider , Plotnik Meir 
Published: January 2025

AbstractINTRODUCTIONWe developed a tool for objective quantification of apathy.METHODSParticipants (n = 97; 67 with cognitive impairment, 30 cognitively normal; mean age = 74.3 ± 6.2 years, 56.7% females) were exposed to emotional and cognitive stimuli in a virtual reality environment. Gaze metrics (time to first fixation [TTFF] and total fixation duration [TFD]) and autonomic nervous system (ANS) reactivity were measured. Apathy and depression were clinically assessed using the Lille Apathy Rating Scale short version and the Geriatric Depression Scale 15‐item version, respectively. Cutoffs of ≥ –7 and ≥ 5 were used to define apathy and depression, respectively.RESULTSThe sample comprised 14 participants with apathy only, 9 with depression only, 10 with both, 63 with neither, and 1 with missing data. For all emotional stimuli, participants with apathy only showed longer TTFF (P = 0.039, effect sizes [ES] = 0.798), and shorter TFD (P = 0.023, ES = 0.578) compared to those without apathy or depression. ANS reactivity was not associated with apathy.DISCUSSIONApathy is associated with decreased gaze engagement at emotional stimuli.Highlights
Apathy measurement via questionnaires is limited by subjectivity biases.
Apathy measurement via questionnaires is limited by simplistic scoring.
We present a novel method for objective measurement of apathy.
Gaze characteristics reflect the emotional and cognitive components of apathy.
Computerized cognitive testing to capture cognitive decline in Alzheimer's disease: Longitudinal findings from the ARMADA study
Authors: Jutten Roos J. , Ho Emily H. , Karpouzian‐Rogers Tatiana , van Hulle Carol , Carlsson Cynthia , Dodge Hiroko H. , Nowinski Cindy J. , Gershon Richard , Weintraub Sandra , Rentz Dorene M. 
Published: January 2025

AbstractINTRODUCTIONTimely detection and tracking of Alzheimer's disease (AD) ‐related cognitive decline has become a public health priority. We investigated whether the NIH Toolbox for Assessment of Neurological and Behavioral Function—Cognition Battery (NIHTB‐CB) detects AD‐related cognitive decline.METHODSN = 171 participants (age 76.5 ± 8; 53% female, 34% Aβ‐positive) from the ARMADA study completed the NIHTB‐CB at baseline, 12 months, and 24 months. Linear mixed‐effect models correcting for demographics were used to examine cross‐sectional and longitudinal NIHTB‐CB scores in individuals across the clinical AD spectrum.RESULTSCompared to Aβ‐negative healthy controls, Aβ‐positive individuals with amnestic MCI or mild AD performed worse on all NIHTB‐CB measures and showed an accelerated decline in processing speed, working memory, and auditory word comprehension tests.DISCUSSIONThese findings support the use of the NIHTB‐CB in early AD, but also imply that the optimal NIHTB‐CB composite score to detect change over time may differ across clinical stages of AD. Future directions include replication of these findings in larger and more demographically diverse samples.Highlights
We examined NIH Toolbox—Cognition Battery scores across the clinical AD spectrum.
All NIH Toolbox tests detected cross‐sectional cognitive impairment in MCI‐to‐mild AD.
Three NIH Toolbox tests captured further decline over time in MCI‐to‐mild AD.
The NIH Toolbox can facilitate timely detection of AD‐related cognitive decline.
Access to 1, 2‐Dihydropyridine/Pyridine‐Fused Coumarins through [3+3] Annulation between 4‐Aminocoumarins and Propargylic Alcohols
Authors: Liu Minghui , Guan Pengcheng , Qu Yujie , Yan Feng , Feng Feng , Wang Chengyu 
Published: January 2025

AbstractTwo facile and diversified protocols for the chem‐selective synthesis of 1,2‐dihydropyridine‐fused coumarins and pyridocoumarins have been developed. Readily accessible substrates, mild reaction conditions and good functional group tolerance make these procedures attractive for the construction of various dihydropyridine‐fused coumarins and pyridocoumarins, which may enrich and develop the heterocyclic chemistry and medicinal chemistry.
The Determinants of Marginal Convenience Yield in Agricultural Commodity Markets
Authors: Bermpei Theodora , Triantafyllou Athanasios 
Published: January 2025

AbstractWe report a significant downward trend in the convenience yield for holding physical inventory in agricultural commodity futures markets, attributing this negative trend to speculative demand shocks, which in turn, leads in decreasing agricultural convenience yields. Moreover, agricultural convenience yields appear negative on average during the recent financialization (of commodities) period. We additionally show that the response of agricultural convenience yields to commodity price uncertainty and supply shocks is much less pronounced in magnitude and persistence compared to that of hedging demand shocks. Overall, our analysis verifies the Keynesian theory of normal backwardation by showing a long‐lasting positive response of agricultural convenience yields to a hedging demand shock, thereby leaving the hedging demand as the most significant factor explaining the less frequently observed backwardations in agricultural futures markets.