bluuebunny/crossref_metadata_2025_split huggingface dataset:
Local electronic structure constructing of layer‐structured oxide cathode material for high‐voltage sodium‐ion batteries
Authors: Yang Dongrun , Gao Xuan‐Wen , Gao Guoping , Lai Qingsong , Ren Tianzhen , Gu Qinfen , Liu Zhaomeng , Luo Wen‐Bin 
Published: May 2024

AbstractAs the cyclable sodium ions' primary suppliers, O3‐type layer‐structured manganese‐based oxides are recognized as one of the most competitive cathode candidates for sodium‐ion batteries. Suffering from complex structural transformations and transition metal migration during the sodium intercalation/deintercalation process, particularly at high voltage, the energy density and lifespan cannot satisfy the increasing demand. The orbital and electronic structure of the octahedral center metal element plays an important role in maintaining the octahedral structural integrity and improving the Na+ diffusivity by the introduced heterogeneous [Me–O] (Me: transition metals) chemical bonding. Herein, inspired by the 4f and 5d orbital bonding possibility from the abundant configuration of extranuclear electrons and large ion radius, O3‐type Na[La0.01Ni0.3Mn0.54Cu0.1Ti0.05]O2 was synthesized with a nearly single crystal structure. Based on the experimental and computational results, the introduced heterogeneous [La–O] chemical bond with larger bond strength can not only ensure the stability of the lattice oxygen framework and the reversibility of oxygen redox but also optimize the oxygen local electronic structure resulting from La 5d and O 2p orbital mixing due to O 2p → La 5d charge transfer. It delivers an optimal electrochemical performance with a high energy density and cycling lifespan.
Supramolecular Sequential Light‐Harvesting Systems for Constructing White LED Device and Latent Fingerprint Imaging
Authors: Zhang Qiaona , Cui Fengyao , Dang Xiaoman , Wang Qi , Li Zheng‐Yi , Sun Xiao‐Qiang , Xiao Tangxin 
Published: May 2024

AbstractThe fabrication of supramolecular light‐harvesting systems (LHS) with sequential energy transfer is of significance in utilizing light energy. In this study, we report the non‐covalent self‐assembly of a sequential LHS by pillar[5]arene‐based host‐guest interaction in water and its applications in white light‐emitting diode (LED) device and latent fingerprint imaging. The host‐guest complex WP5
G self‐assembles into nanoparticles in water and shows enhanced aggregation‐induced emission (AIE) effect. The nanoparticles can be further used to construct sequential LHS with fluorescent dyes 4,7‐di(2‐thienyl)‐benzo[2,1,3]thiadiazole (DBT) and sulforhodamine 101 (SR101). Impressively, the system shows white‐light emission when the molar ratio of WP5
G/DBT/SR101 is 1100/2/16. The material can be coated on a LED bulb to achieve white‐light emission. In addition, the sequential LHS exhibit multicolor fluorescence including red emission, which have been successfully applied to high‐resolution imaging of latent fingerprints. Therefore, we demonstrated a general strategy for the construction of sequential LHS in water based on macrocyclic host‐guest interaction and explored its multi‐functional applications in white‐light LED device and imaging of latent fingerprints, which will promote future development and application of supramolecular LHSs.
Luminescent Tetranuclear Copper(I) and Gold(I) Heterobimetallic Complexes: A Phosphine Acetylide Amidinate Orthogonal Ligand Framework for Selective Complexation
Authors: Shubham  , Naina Vanitha R. , Roesky Peter W. 
Published: May 2024

AbstractThe synthesis of phosphine acetylide amidinate stabilized copper(I) and gold(I) heterobimetallic complexes was achieved by reacting ligand [{Ph2PC≡CC(NDipp)2}Li(thf)3] (Dipp=2,6‐N,N′‐diisopropylphenyl) with CuCl and Au(tht))Cl, yielding the eight membered ring [{Ph2PC≡CC(NDipp)2}2Cu2] and the twelve membered ring [{Ph2PC≡CC(NDipp)2}2Au2]. {Ph2PC≡CC(NDipp)2}2Cu2] features a Cu2 unit, which is bridged by two amidinate ligands, served as a metalloligand to synthesize the heterobimetallic CuI/AuI complexes [{(AuX)Ph2PC≡CC(NDipp)2}2Cu2] (X=Cl, C6F5). In these reactions, the central ring structure is retained. In contrast, when the twelve membered ring [{Ph2PC≡CC(NDipp)2}2Au2] was reacted with CuX (X=Cl, Br, I and Mes), the reaction led to the rearrangement of the central ring structure to give [{(AuX)Ph2PC≡CC(NDipp)2}2Cu2] (X=Cl, Br, I and Mes), which feature the same the eight membered Cu2 ring as above. These compounds were also synthesized by a one‐pot reaction. The luminescent heterobimetallic complexes were further investigated for their photophysical properties.
Design, Synthesis, Antitumor Activity and NMR‐Based Metabolomics of Novel Amino Substituted Tetracyclic Imidazo[4,5‐b]Pyridine Derivatives
Authors: Perin Nataša , Lončar Borka , Kadić Matej , Kralj Marijeta , Starčević Kristina , Carvalho Rui A. , Jarak Ivana , Hranjec Marijana 
Published: May 2024

AbstractNewly prepared tetracyclic imidazo[4,5‐b]pyridine derivatives were synthesized to study their antiproliferative activity against human cancer cells. Additionally, the structure‐activity was studied to confirm the impact of the N atom position in pyridine nuclei as well as the chosen amino side chains on antiproliferative activity. Targeted amino substituted regioisomers were prepared by using uncatalyzed amination from corresponding chloro substituted precursors. The most active compounds 6 a, 8 and 10 showed improved activity in comparison to standard drug etoposide with IC50 values in a nanomolar range of concentration (0.2–0.9 μM). NMR‐based metabolomics is a powerful instrument to elucidate activity mechanism of new chemotherapeutics. Multivariate and univariate statistical analysis of metabolic profiles of non‐small cell lung cancer cells before and after exposure to 6 a revealed significant changes in metabolism of essential amino acids, glycerophospholipids and oxidative defense. Insight into the changes of metabolic pathways that are heavily involved in cell proliferation and survival provide valuable guidelines for more detailed analysis of activity metabolism and possible targets of this class of bioactive compounds.
Twisted Kähler–Einstein metrics in big classes
Authors: Darvas Tamás , Zhang Kewei 
Published: May 2024

AbstractWe prove existence of twisted Kähler–Einstein metrics in big cohomology classes, using a divisorial stability condition. In particular, when is big, we obtain a uniform Yau–Tian–Donaldson (YTD) existence theorem for Kähler–Einstein (KE) metrics. To achieve this, we build up from scratch the theory of Fujita–Odaka type delta invariants in the transcendental big setting, using pluripotential theory. We do not use the K‐energy in our arguments, and our techniques provide a simple roadmap to prove YTD existence theorems for KE type metrics, that only needs convexity of the appropriate Ding energy. As an application, we give a simplified proof of Li–Tian–Wang's existence theorem in the log Fano setting.
Seamless transfer of virtual synchronous generator using virtual synchronizing torque controller
Authors: Utkarsha Prateek , Swami Naidu N. K. 
Published: May 2024

AbstractInverter‐dependent renewable energy sources are being integrated into the grid, raising several stability‐related difficulties. This is because these renewable sources have less inertia than synchronous generators. Since the power grid's overall inertia has improved, the introduction of virtual synchronous generators (VSG) has gained much attention. A robust microgrid system requires an effortless transition from grid‐connected to autonomous mode. This can be easily achieved with the help of VSGs. The angle, frequency, and magnitude of the grid voltage needed for synchronization have traditionally been determined by phase‐locked‐loop (PLL). The virtual synchronizing torque and voltage‐based synchronization controller for simple switching between islanding and grid‐connected modes are presented in this study. The proposed method requires no additional controller to identify the unwanted islanding situations because the operating mode can be identified with the help of synchronizing torque. The proposed method does not need to shift to different control algorithms while changing between grid connection and stand‐alone modes. The effectiveness of the suggested controller is established by comparing the experimental prototype of the VSG incorporating the proposed controller to the existing synchronization methods.
Traditional paddy field‐supported bird diversity ignored by forest‐focused protection of ecosystems in tropical China
Authors: Zhang Mingxia , Xu Yuqing , Li Jiabin , Yang Jianbo , Wang Qiaoyan , Lin Qiaoli , Zhou Qihai , Wang Lin 
Published: May 2024

AbstractBiodiversity in tropical regions is facing threats from agricultural expansion and intensification. Therefore, a promising future for local ecosystem conservation depends not only on traditional protected areas but also on well‐managed agricultural landscapes. In this study, we compared the ecological traits of bird species in paddy fields outside of protected areas and natural forests within the protected areas of Xishuangbanna, southern China. There were 148 species in total, of which 98 were in forests and 55 in paddy fields. The abundance of birds in paddy fields was 176 per kilometer, which was much higher than the 60 per kilometer in forests. There were 26 law‐protected species observed, half of which were found in each habitat. The main functional groups living in nature reserves are invertivores and frugivores, whereas paddy fields provide habitats for aquatic predator and granivore bird species. Our results indicate that paddy fields act as a refuge for wetland and grassland bird species when natural wetlands disappear, highlighting the urgent need to focus more on wetland protection and eco‐friendly agricultural schemes at the landscape scale in future conservation policies.
Cardiac amyloidosis is not a single disease: a multiparametric comparison between the light chain and transthyretin forms
Authors: Neculae Gabriela , Adam Robert , Jercan Andreea , Bădeliță Sorina , Tjahjadi Catherina , Draghici Mirela , Stan Claudiu , Bax Jeroen J. , Popescu Bogdan A. , Marsan Nina Ajmone , Coriu Daniel , Jurcuț Ruxandra 
Published: May 2024

AbstractAimsSystemic amyloidosis represents a heterogeneous group of diseases resulting from amyloid fibre deposition. The purpose of this study is to establish a differential diagnosis algorithm targeted towards the two most frequent subtypes of CA.Methods and resultsWe prospectively included all consecutive patients with ATTR and AL evaluated between 2018 and 2022 in two centres in a score derivation cohort and a different validation sample. All patients had a complete clinical, biomarker, electrocardiographic, and imaging evaluation. Confirmation of the final diagnosis with amyloid typing was performed according to the current international recommendations. The study population included 81 patients divided into two groups: ATTR (group 1, n = 32: 28 variant and 4 wild type) and AL (group 2, n = 49). ATTR patients were younger (50.7 ± 13.9 vs. 60.2 ± 7.3 years, P = 0.0001), and significantly different in terms of NT‐proBNP [ATTR: 1472.5 ng/L (97–4218.5) vs. AL 8024 ng/L (3058–14 069) P = 0.001], hs‐cTn I [ATTR: 10 ng/L (4–20) vs. AL 78 ng/L (32–240), P = 0.0002], GFR [ATTR 95.4 mL/min (73.8–105.3) vs. AL: 68.4 mL/min (47.8–87.4) P = 0.003]. At similar left ventricular (LV) wall thickness and ejection fraction, the ATTR group had less frequently pericardial effusion (ATTR: 15% vs. AL: 33% P = 0.0027), better LV global longitudinal strain (ATTR: −13.1% ± 3.5 vs. AL: −9.1% ± 4.3 P = 0.04), RV strain (ATTR: −21.9% ± 6.2 vs. AL: −16.8% ± 6 P = 0.03) and better reservoir function of the LA strain (ATTR: 22% ± 12 vs. AL: 13.6% ± 7.8 P = 0.02). Cut‐off points were calculated based on the Youden method. We attributed to 2 points for parameters having an AUC > 0.75 (NT‐proBNP AUC 0.799; hs‐cTnI AUC 0.87) and 1 point for GFR (AUC 0.749) and TTE parameters (GLS AUC 0.666; RV FWS AUC 0.649, LASr AUC 0.643). A score of equal or more than 4 points has been able to differentiate between AL and ATTR (sensitivity 80%, specificity 62%, AUC = 0.798). The differential diagnosis score system was applied to the validation cohort of 52 CA patients showing a sensitivity of 81% with specificity of 77%.ConclusionsCA is a complex entity and requires extensive testing for a positive diagnosis. This study highlights a series of non‐invasive checkpoints, which can be useful in guiding the decision‐making process towards a more accurate and rapid differential diagnosis.
Direct Arylation of Benzoxazoles with Benzoyl Chlorides under Mild Conditions
Authors: Wang Feifei , Yang Zhiyong , Yan Jiaqi , Xue Qiuyan 
Published: May 2024

AbstractA mild and convenient method for the arylation of benzoxazoles with benzoyl chlorides is reported. This facile protocol used only N,N‐diisopropylethylamine (DIPEA) as an additive. Under the optimal reaction conditions, a wide range of benzoxazoles and benzoyl chlorides were tolerated. With this strategy, benzothiazoles and benzoyl chlorides also reacted well to afford the desired product 2‐aryl benzothiazoles in moderate yields.
Synthesis, Stability, Meisenheimer Complex Formation, and Charge‐Transfer Properties of Ultra‐Electron‐Deficient Tetracyano‐Naphthalene Diimides
Authors: Yadav Devendra , Kumar Yogendra , Husain Ch. Mudasar , Mahiya Kuldeep , Mukhopadhyay Pritam 
Published: May 2024

AbstractTetra‐cyano substituted naphthalene diimides (TCNDIs) with calculated LUMO of −5.2 eV, form one of the strongest electron‐acceptors known to date. However, the synthesis and isolation of this class of molecules remain challenging due to its reactivity emanating from its ultra‐electron‐deficiency. Herein we have established an improved synthetic methodology of TCNDIs with cost‐effective reagents and circumventing metallic catalysts. The synthesis is amenable to TCNDIs with the shortest axial alkyl groups, i. e., methyl group and also longer alkyl chains. We also gained insight on how axial alkyl chain lengths influence electron‐deficiency, Meisenheimer complex formation, reactivity, and charge‐transfer of TCNDIs from computation, spectroscopy, and electrochemical studies. The TCNDIs with Me/Et axial groups were found to be more susceptible to moist solvents vis‐à‐vis the TCNDIs with longer alkyl groups. The single crystal structures of the TCNDIs show infinitely π‐stacked structure, and a new C=O ⋅ ⋅ ⋅ C≡N or C≡N ⋅ ⋅ ⋅ π motif is discerned. Finally, toluene‐mediated charge‐transfer properties of TCNDIs in the single crystals as well as in solution have been examined.
Advancements and challenges in brain cancer therapeutics
Authors: Bai Fan , Deng Yueyang , Li Long , Lv Ming , Razzokov Jamoliddin , Xu Qingnan , Xu Zhen , Chen Zhaowei , Chen Guojun , Chen Zhitong 
Published: May 2024

AbstractTreating brain tumors requires a nuanced understanding of the brain, a vital and delicate organ. Location, size, tumor type, and surrounding tissue health are crucial in developing treatment plans. This review comprehensively summarizes various treatment options that are available or could be potentially available for brain tumors, including physical therapies (radiotherapy, ablation therapy, photodynamic therapy, tumor‐treating field therapy, and cold atmospheric plasma therapy) and non‐physical therapies (surgical resection, chemotherapy, targeted therapy, and immunotherapy). Mechanisms of action, potential side effects, indications, and latest developments, as well as their limitations, are highlighted. Furthermore, the requirements for personalized, multi‐modal treatment approaches in this rapidly evolving field are discussed, emphasizing the balance between efficacy and patient safety.
Commodity price volatility, institutions and economic growth: An empirical investigation
Authors: Houndoga Fréjus‐Ferry , Picone Gabriel 
Published: May 2024

AbstractThis article investigates the role of institutional quality in transmitting effects of commodity price volatility to economic growth. To do so, we collect data on 107 primary commodity exporting countries in both developing and developed ones over the period 1976–2015. Our empirical approach is based on Solow growth model framework (Solow, R. M. (1956). The Quarterly Journal of Economics, 70(1), 65) and consists of estimating a dynamic panel model using the two‐step system GMM estimator. Our results show evidence that commodity price booms are associated with good economic performances that are unfortunately wiped out by the negative effects of price volatility in developing commodity‐dependent countries (CDCs). The main channel through which this volatility affects economic growth turns out to be through factor productivity. Finally, we have formally established that the negative effect of price volatility in CDCs is mainly due to the poor quality of institutions in these countries. These results suggest that it is important for commodity‐exporting economies, especially developing CDCs, to work on building strong economic and political institutions to guard against the risk of commodity price volatility.
Enhancing sleep health in urban American Indian/Alaska Native adolescents: Implications for culturally tailored interventions
Authors: Dong Lu , Brown Ryan A. , Palimaru Alina I. , D'Amico Elizabeth J. , Dickerson Daniel L. , Klein David J , Johnson Carrie L. , Troxel Wendy M. 
Published: May 2024

AbstractBackgroundUrban American Indian/Alaska Native (AI/AN) adolescents are vulnerable to sleep and other health‐related disparities due to numerous social drivers, including historical trauma and relocation to urban areas. This study aims to identify strategies to increase protective factors and culturally tailor sleep health interventions for this population.MethodsUsing community‐based participatory research, the NAYSHAW study conducted in‐depth interviews with urban AI/AN adolescents aged 12–19 years to understand critical components needed for developing a culturally sensitive sleep health intervention. Data from two qualitative subsamples (N = 46) and parent surveys (N = 110) were analyzed, focusing on factors that affect sleep health behaviors, including parental involvement, technology, and traditional practices.ResultsKey findings include the detrimental impact of electronics use at night and protective effects of traditional practices on sleep. Parental involvement in sleep routines varied by adolescent's age. Adolescents desired sleep health education in interactive formats, whereas parents preferred workshops and digital applications for sleep health strategies. Findings suggest that interventions need to address electronics use and should also be culturally tailored to address the unique experiences of urban AI/AN adolescents.ConclusionsResults underscore the importance of utilizing community‐based strategies to develop culturally tailored sleep interventions for underserved populations, specifically urban AI/AN adolescents. Integrating traditional practices with evidence‐based sleep health strategies can provide a holistic approach to improving sleep and overall well‐being. Parental education and involvement will be critical to the success of such interventions.
Improvement on electrochemiluminescence properties of graphite carbon nitride by metal oxidation state regulation
Authors: Zou Rui , Guo Rui , Cheng Jinkui 
Published: May 2024

AbstractReasonable design is of great significance for improving the performance of electrochemiluminescence (ECL) co‐reactant accelerators. The different d‐band structure of metal single atoms will produce different oxidation states, which may change the adsorption of reaction intermediates to the catalyst and affect its catalytic activity. In this study, we have demonstrated that the ECL performances of graphite carbon nitride (CN) can be promoted by modulating the metal oxidation states of co‐reaction accelerator for the first time. The oxidation states of Au were modulated by the different electronic metal–support interaction (EMSI) between the co‐reaction accelerator (Au single atoms, Au nanoparticles [Au NPs]) and CN, and the effects of Au oxidation states on the ECL performances of CN were investigated. Comparison to pristine CN and CN nanosheets supported Au nanoparticles (Au NPs/CN), stronger and more stable ECL intensity of CN nanosheets supported Au single‐atoms (AuS/CN) was obtained. The ECL signal of AuS/CN was about 32.2 times that of the original CN, and 2.8 times that of Au NPs/CN in the same Au loading content (0.8%). Detailed mechanism revealed that AuS/CN with higher Au oxidation state has better conductivity and stronger catalytic activity, which promotes the electric reduction of CN and S2O82−, increases the lifetime of the excited state CN*, and significantly improves the ECL performance of CN. In addition, this work provides a detailed understanding of the essence of EMSI for the ECL intensity amplification and established a feasible method for the improvement of ECL capacities of co‐reactant accelerators.
Advancing the voice of women through doctoral education: Proposed models for dental hygienists and dental therapists
Authors: Bono Leciel K. , Gurenlian JoAnn 
Published: May 2024

AbstractThe increase in scientific knowledge, oral healthcare, new dental hygiene workforce models, and the latest clinical skills, have elevated the need for doctoral prepared dental hygienists and dental therapists. These oral care providers need to be empowered with advanced preparation in education, research, and leadership. Therefore, the purpose of this paper is to present two curricular models for a doctorate of philosophy and a doctorate of oral health practice recognizing that students may have different goals and interests in educational pursuits. The doctoral program models support the conduct of research and scholarship, which supports the research infrastructure of the profession and emphasizes the dissemination of scholarly works. Creation of doctoral programs for dental hygienists and dental therapists provides opportunities to broaden choices and strive for autonomy throughout their careers. These programs may support the development of additional scholars and advanced practitioners who can contribute to the scientific body of knowledge and create policies and pathways to improve population oral health.
Uncover your inner power: Breaking leadership biases in global healthcare
Authors: Hachem Lea El , Garcia M. Nathalia , Brady Michelle , Cain Lisa , Lopez‐Fuentes Ana N. 
Published: May 2024

AbstractWomen currently represent approximately 70% of the global healthcare workforce, 60.9% of the global dental workforce, 77.6% of the US healthcare workforce, and 36.7% of the US dental workforce. The American Dental Association states that the number of practicing women dentists in the United States has increased by 2.25 times since 2001, with a projected trajectory to level off by 2040. Despite having a major impact on the healthcare sector globally, women earn 24% less than men and only serve in 25% of senior leadership positions. In the US dental schools, only 14% of faculty serve in administrative roles, and as of April 2022, 28.6% of the US dental school deans were women, indicating gender underrepresentation in the highest roles of academic leadership. This corresponds to the data on gender parity still not being the norm in many societies and workplaces and can be attributed to public policies, stereotypical perceptions, and individual factors. Five key factors have been identified to be crucial for women's entry or advancement in global health leadership: a) public policy, b) community, c) institutional, d) interpersonal, and e) individual. Individual self‐improvement and institutional practices may be used to overcome these barriers to women's leadership in healthcare and shift the power dynamics toward reinforcing gender equality. These transformative changes are measured through women's collective capacities and skills, relationship dynamics, community perceptions, and environmental practices. This article recognizes the present obstacles to women in healthcare leadership and proposes strategies to achieve gender equality both through individual and institutional practices.