bluuebunny/crossref_metadata_2025_split huggingface dataset:
Fish otoliths from the Paleocene (Selandian) of West Greenland
Authors: Schwarzhans Werner 
Published: November 2023

Fish otoliths are described from the Middle Paleocene from Nuussuaq in central West Greenland. A total of 24 species is described, 7 as newly established and 4in open nomenclature. All specimens were obtained from the Sonja lens of the Agatdal Formation (Selandian) in the central part of the Nuussuaq peninsula. This is the first record of fossil otoliths from Greenland. The faunal association is interpreted as shallow shelf, near shore neritic but nevertheless shows a high degree of similarity with time equivalent otolith based teleost faunas from deeper environments from the U.S. Gulf coast and Europe (Denmark), the latter having been recently reviewed and described by Schwarzhans, 2003.
7 new species are introduced and described. The new taxa are: Neoscopelus nuussuaqensis, genus ?Percopsiformorum resonus, Palaeomorrhua thulei, genus Veliferidarumgroenlandicus, Hoplostethus durus, genus Berycidarum tener, genus Acropomatidarum rosenkrantzi.
A systematic approach to the study of the image of modern students
Authors: Andreeva Elena Vasilevna 
Published: November 2023

The object of the study is the image of a student of a professional educational institution (university). The subject of the research is the use of a systematic approach in the study of the processes of formation and development of the image of students. The purpose of the study was to determine the place of the image in the system of vocational education, its function, to identify the factors that ensure the process of formation and development of the student's image. The study was conducted on the basis of the Department of Socio-Cultural Service and Tourism of the Institute of Languages and Culture of the Peoples of the North-East of the Russian Federation of the M. K. Ammosov NEFU. Based on the provisions of T. Parsons' theory of systems and structural and functional analysis, the results of research by domestic and foreign scientists on the problems of the formation of the image of adolescents, young people, including in the learning process, the author considers vocational education as a social system in which the image of a student performs several functions. Both theoretical and empirical methods were used in the work, which allowed to develop a model of the image of a student of a vocational educational institution, to summarize the results of a study on the image of students of the Northeastern Federal University. The novelty of the study is that a model of the image of a student of a vocational educational institution was developed, on the basis of which the structure of the image of students of a higher educational institution was studied, processes that occur within the image as a system, conditions and factors that determine changes in the structure of the image. Based on the conducted research, conclusions are drawn that the image of students is a subsystem of the social system of vocational education, simultaneously acting as a mechanism for its preservation, as well as an independent system generating changes within itself, which ensures its safety, balance and unity. The condition for preserving the image as a system is a change in the structure of the image that occurs in the educational environment of the university due to the integration of various types of educational, scientific, project and organizational activities.
Creation of an interactive map of the disappeared settlements of the Omsk region through the use of GIS technologies
Authors: Sokolova Evgeniya Valer'evna , Petrov Mikhail Aleksandrovich 
Published: November 2023

The article is devoted to the study of the possibilities of using geographical information systems to study the process of forming a rural settlement network of the territory. The object of the study is the formation of a map of rural settlements of the Omsk region. The subjects of study are the disappeared villages of the Omsk region. The purpose of the study is to show the possibilities of geographical information systems for visualizing the map of disappeared villages. In the course of the work, the authors collected and digitized significant cartographic material reflecting the territory of the Omsk region within modern borders. This made it possible to study and analyze the historical traces of the disappeared villages on maps and plans. The authors consider in detail such issues as the development of an electronic map of rural settlements and an interactive map of disappeared villages, which allows to accumulate information collected from various sources, including non-traditional ones for historical science. On the basis of digitized materials using GIS technologies, a vector electronic map of the Omsk region was formed, on which the historical picture of the formation of the rural settlement network of the territory is reflected in layers. In the course of the study, the authors established the possibilities of systematization and registration of these cartographic materials into a single interactive map of the region with embedded attributive (semantic) data in the form of historical references and photographic materials. The novelty of the research lies in its interdisciplinarity: the use of modern information systems when working with traditional historical sources (cartographic materials) opens up new opportunities for researchers. The experience of developing an interactive map of disappeared villages using geographic information systems is necessary to summarize information and form a general picture of the development of the territory in certain periods of time. The practical significance of the research lies in the fact that the created interactive map allows you to preserve the history of the disappeared villages in a single systematized space, demonstrates new possibilities of historical research. The results of the work will be useful not only to the scientific community, but also to practical teachers who will be able to use the map in their professional activities and involve schoolchildren in work to refine and supplement the map data.
Advances and Perspectives of Ion‐Intercalated Vanadium Oxide Cathodes for High‐Performance Aqueous Zinc Ion Battery
Authors: Bai Youcun , Qin Yuan , Hao Jiangyu , Zhang Heng , Li Chang Ming 
Published: November 2023

AbstractRechargeable aqueous zinc‐ion batteries (AZIBs) are recognized as one of the most competitive next generation energy storage systems due to the high theoretical capacity (820 mAh g−1), abundant reserves, low expense, and environmental friendliness. However, in comparison to that monovalent ion secondary battery, the multivalent ion rechargeable battery faces larger metal ion sizes and higher charge/discharge number in the electrochemical reaction process, thereby suffering from larger steric resistance and the electrostatic repulsion in the intercalation–deintercalation process. At present, a great deal of research has shown that the guest ion pre‐embedded host structured cathodes can effectively alleviate the above problems and improve the comprehensive performance of aqueous zinc ion battery. In this review, the development of vanadium oxide ion‐intercalated cathode materials in AZIBs is reviewed, mainly including MXV2O5∙nH2O, MXV3O8∙nH2O, MXV6O13∙nH2O, MXV6O16∙nH2O, and MXV10O25∙nH2O type materials. The reaction mechanisms and electrochemical performance of these materials are described, and the future research directions are prospected. It is expected to provide fundamental and engineering guidance for the development of high performance AZIBs cathode materials.
Local Geometric Distortion to Stimulate Oxygen Reduction Activity of Atomically Dispersed Zn‐Nx Sites for Zn–Air Batteries
Authors: Tan Yangyang , Zhang Zeyi , Chen Suhao , Wu Wei , Yu Liyue , Chen Runzhe , Guo Fei , Wang Zichen , Cheng Niancai 
Published: November 2023

AbstractLocal geometric strain engineering is useful for modulating the performance of nitrogen‐coordinated transition metal‐carbon catalysts. However, realizing the nano‐level strain is technically challenging. Additionally, the structure‐property relationship between strain degree and performance remains poorly understood. Herein, it is conceptually predict that geometric bending induces more electron transfer from Zn to the coordinated N in Zn─N─C, leading to a positive shift of the d‐band center of the Zn atom, which promotes the adsorption reduction process of the O2 molecule and thus increases the intrinsic oxygen reduction reaction (ORR) activity. Moreover, a low‐temperature non‐saturated coordination strategy is proposed to prepare spherical porous carbon catalysts with surface‐enriched geometrically bent (20‐50°) Zn─N─C sites. Benefiting from the highly active Zn─N─C sites, large specific surface area and abundant pore structure, the optimized catalyst (S─Zn─N─C‐950) exhibited excellent intrinsic alkaline ORR activity (half‐wave potential E1/2 = 0.89 V) and high zinc‐air battery performance (peak power density of 229.2 mW cm−2), exceeding that of commercial Pt/C catalysts. Density functional theory (DFT) calculations show that when the geometrical bending angle is 30–45°, Zn centers with suitable charge transfer to the surrounding N can produce a moderate adsorption strength to the oxygen intermediate state, resulting in optimal ORR activity.
Electrode Protection and Electrolyte Optimization via Surface Modification Strategy for High‐Performance Lithium Batteries
Authors: Zhang Yong , Wang Jirong , Xue Zhigang 
Published: November 2023

AbstractLithium batteries have become one of the best choices for energy storage due to their long lifespan, high operating voltage‐platform and energy density without any memory effect. However, the ever‐increased demands of high‐performance lithium batteries indeed place a stricter request to the electrodes and electrolytes materials, and electrode‐electrolyte interface. Various strategies are developed to enhance the overall performances of current lithium batteries, and among them, artificial modification of battery components is regarded as one of the most effective. However, systematic summery surrounding surface modifications is rare. In this review, the structural instability of the bare electrodes and the main defects of unmodified separator/solid electrolytes are briefly presented. Then diverse and advanced surface‐engineering strategies for both the cathode and anode materials, as well as the separator/solid electrolytes are carefully summarized. More importantly, the prospects of surface modification and challenges of current methods for constructing high‐performance lithium batteries are pointed out.
A Single NIR‐II Laser‐Triggered Self‐Enhancing Photo/Enzyme‐coupled Three‐in‐One Nanosystems for Breast Cancer Phototheranostics
Authors: Dai Rong , Liu Qi , Zhang Binyue , Zhang Xin , Gao Mengting , Li Dongsheng , Kang Weiwei , Chen Lin , Zhao Mingxin , Zheng Ziliang , Zhang Ruiping 
Published: November 2023

AbstractMultifunctional phototheranostics, employing precise and non‐invasive techniques, is widely developed to enhance theranostic efficiency of breast cancer (BC), reduce side‐effects, and improve quality of life. Integrating all phototheranostic modalities into a single photosensitizer for highly effective BC treatment is particularly challenging due to the potential inefficiency and time consumption associated with repeated switching of multiple‐wavelength lasers. Herein, a novel single NIR‐II laser‐triggered three‐in‐one nanosystem(PdCu NY) is rationally designed, which enables dual‐modal (NIR‐II FL/NIR‐II PA) imaging‐guided self‐enhancing photothermal‐photodynamic therapy (PTT‐PDT) in NIR‐II window. The PdCu NY based on optimal Pd/Cu molar‐ratio(1:11) can be easily fabricated and large‐scale production for simultaneous PTT‐PDT against BC under a single 1064nm laser irradiation. Significantly, the PdCu NY acted as a promising photocatalyst for decomposition of H2O into O2 upon the same laser irradiation. In addition, the inherent catalase (CAT)‐like activity of PdCu NYs enables photo‐enzyme dual‐catalytic O2 supply to effectively alleviate hypoxia, achieving self‐enhanced PDT efficiency. These PTT‐PDT self‐enhanced nanosystems demonstrate precise lesion localization and complete tumor ablation using a single 1064nm laser source by “one‐laser, multi‐functions” strategy. More importantly, this study not only reports a three‐in‐one PdCu‐based phototheranostic agent, but also sheds light on the exploration of versatile biosafety nanosystems for clinical applications.
Polyelectrolyte‐Cation Complexes Using PAsp‐Sr Complexes Induce Biomimetic Mineralization with Antibacterial Ability
Authors: Xu Yuedan , Shen Dongni , Zhou Zihuai , Sun Yi , Pan Xinni , Liu Wei , Chu Chun Hung , Zhang Ling , Hannig Matthias , Fu Baiping 
Published: November 2023

AbstractRemineralized dentin with an antibacterial ability is still a significant challenge in dentistry. Previously, a polyelectrolyte‐calcium complexes pre‐precursor (PCCP) process is proposed for rapid collagen mineralization. In the present study, the expansion concept of the PCCP process is explored by replacing the calcium with other cations, such as strontium. The results of transmission electron microscopy (TEM), 3D stochastic optical reconstruction microscopy, energy‐dispersive X‐ray analysis, Fourier transform infrared spectroscopy, and high‐resolution TEM with selected area electron diffraction demonstrate that biomimetic mineralization of collagen fibrils and demineralized dentin could be fulfilled with Sr&F‐codoped hydroxyapatite (HAp) after they are treated with poly‐aspartic acid‐strontium (PAsp‐Sr) suspension followed by a phosphate&fluoride solution. Moreover, dentin remineralized with Sr&F‐codoped HAp exhibits in vitro and in vivo antibacterial ability against Streptococcus mutans. The cytotoxicity and oral mucosa irritation tests reveal excellent biocompatibility of mineralization mediums (PAsp‐Sr suspension and phosphate&fluoride solution). The demineralized dentin's mechanical properties (elastic modulus and microhardness) could be restored almost to that of the intact dentin. Hence, the expansion concept of the PCCP process that replaces calcium ions with some cationic ions along with fluorine opens up new horizons for generating antibacterial remineralized dentin containing ions‐doped HAp with excellent biocompatibility via biomimetic mineralization technology.
Materials Strategies Tackling Interfacial Issues in Catalyst Layers of Proton Exchange Membrane Fuel Cells
Authors: Tang Meihua , Yan Huangli , Zhang Xianming , Zheng Zhenying , Chen Shengli 
Published: November 2023

AbstractThe most critical challenge for the large‐scale commercialization of proton exchange membrane fuel cells (PEMFCs), one of the primary hydrogen energy technologies, is to achieve decent output performance with low usage of platinum (Pt). Currently, the performance of PEMFCs is largely limited by two issues at the catalyst/ionomer interface, specifically, the poisoning of active sites of Pt by sulfonate groups and the extremely sluggish local oxygen transport toward Pt. In the past few years, emerging strategies are derived to tackle these interface problems through materials optimization and innovation. This perspective summarizes the latest advances in this regard, and in the meantime unveils the molecule‐level mechanisms behind the materials modulation of interfacial structures. This paper starts with a brief introduction of processes and structures of catalyst/ionomer interfaces, which is followed by a detailed review of progresses in key materials toward interface optimization, including catalysts, ionomers, and additives, with particular emphasis on the role of materials structure in regulating the intermolecular interactions. Finally, the challenges for the application of the established materials and research directions to broaden the material library are highlighted.
Robust and Flame‐Retardant Zylon Aerogel Fibers for Wearable Thermal Insulation and Sensing in Harsh Environment
Authors: Hu Peiying , Wu Fushuo , Ma Bingjie , Luo Jie , Zhang Peigen , Tian Zhihua , Wang Jin , Sun ZhengMing 
Published: November 2023

AbstractThe exceptional lightweight, highly porous, and insulating properties of aerogel fibers make them ideal for thermal insulation. However, current aerogel fibers face limitations due to their low resistance to harsh environments and a lack of intelligent responses. Herein, a universal strategy for creating polymer aerogel fibers using crosslinked nanofiber building blocks is proposed. This approach combines controlled proton absorption gelation spinning with a heat‐induced crosslinking process. As a proof‐of‐concept, Zylon aerogel fibers that exhibited robust thermal stability (up to 650 °C), high flame retardancy (limiting oxygen index of 54.2%), and extreme chemical resistance are designed and synthesized. These fibers possess high porosity (98.6%), high breaking strength (8.6 MPa), and low thermal conductivity (0.036 W m−1 K−1). These aerogel fibers can be knotted or woven into textiles, utilized in harsh environments (−196–400 °C), and demonstrate sensitive self‐powered sensing capabilities. This method of developing aerogel fibers expands the applications of high‐performance polymer fibers and holds great potential for future applications in wearable smart protective fabrics.
Cr3+‐Yb3+‐Ni2+ Tri‐Doped NIR Phosphors with Spectral Output Covering NIR‐I and NIR‐II Regions
Authors: Jiang Lipeng , Zhang Liangliang , Jiang Xue , Xie Jihuan , Lv Guocai , Su Yanjing 
Published: November 2023

AbstractTo realize efficient and broadband near infrared (NIR) light in both NIR‐I and NIR‐II regions, Gd3Mg0.5Al1.5Ga2.5Ge0.5O12 (GMAGG): Cr3+, Yb3+, Ni2+ phosphors are prepared in this study. The effects of Cr3+‐Yb3+ co‐doping and Cr3+‐Yb3+‐Ni2+ tri‐doping on the luminescence properties are investigated. GMAGG: Cr3+, Yb3+ exhibits high internal quantum efficiency (IQE) of 96.4%, and near‐zero thermal quenching (96.5%@423 K) in 650–1100 nm. By constructing energy transfer from Cr3+ to Ni2+, the emission range of GMAGG: Cr3+, Yb3+, Ni2+ is further extended to 650–1700 nm with a high IQE of 28% and good thermal stability (66%@423 K). The NIR LEDs prepared with GMAGG: 0.04Cr3+, 0.008Yb3+, and GMAGG: 0.04Cr3+, 0.008Yb3+, 0.04Ni2+ exhibit 57.5 and 8.1 mW at an input current of 100 mA, respectively. The results show that GMAGG: Cr3+, Yb3+, Ni2+ is a promising NIR phosphor for NIR light sources.
Microfluidic Organoid Cultures Derived from Pancreatic Cancer Biopsies for Personalized Testing of Chemotherapy and Immunotherapy
Authors: Choi Daheui , Gonzalez‐Suarez Alan M. , Dumbrava Mihai G. , Medlyn Michael , de Hoyos‐Vega Jose M. , Cichocki Frank , Miller Jeffrey S. , Ding Li , Zhu Mojun , Stybayeva Gulnaz , Gaspar‐Maia Alexandre , Billadeau Daniel D. , Ma Wen Wee , Revzin Alexander 
Published: November 2023

AbstractPatient‐derived cancer organoids (PDOs) hold considerable promise for personalizing therapy selection and improving patient outcomes. However, it is challenging to generate PDOs in sufficient numbers to test therapies in standard culture platforms. This challenge is particularly acute for pancreatic ductal adenocarcinoma (PDAC) where most patients are diagnosed at an advanced stage with non‐resectable tumors and where patient tissue is in the form of needle biopsies. Here the development and characterization of microfluidic devices for testing therapies using a limited amount of tissue or PDOs available from PDAC biopsies is described. It is demonstrated that microfluidic PDOs are phenotypically and genotypically similar to the gold‐standard Matrigel organoids with the advantages of 1) spheroid uniformity, 2) minimal cell number requirement, and 3) not relying on Matrigel. The utility of microfluidic PDOs is proven by testing PDO responses to several chemotherapies, including an inhibitor of glycogen synthase kinase (GSKI). In addition, microfluidic organoid cultures are used to test effectiveness of immunotherapy comprised of NK cells in combination with a novel biologic. In summary, our microfluidic device offers considerable benefits for personalizing oncology based on cancer biopsies and may, in the future, be developed into a companion diagnostic for chemotherapy or immunotherapy treatments.
Isolation of an Anionic Dicarbene Embedded Sn2P2 Cluster and Reversible CO2 Uptake
Authors: Ebeler Falk , Vishnevskiy Yury V. , Neumann Beate , Stammler Hans‐Georg , Ghadwal Rajendra S. 
Published: November 2023

AbstractDecarbonylation of a cyclic bis‐phosphaethynolatostannylene [(ADC)Sn(PCO)]2 based on an anionic dicarbene framework (ADC = PhC{N(Dipp)C}2; Dipp = 2,6‐iPr2C6H3) under UV light results in the formation of a Sn2P2 cluster compound [(ADC)SnP]2 as a green crystalline solid. The electronic structure of [(ADC)SnP]2 is analyzed by quantum‐chemical calculations. At room temperature, [(ADC)SnP]2 reversibly binds with CO2 and forms [(ADC)2{SnOC(O)P}SnP]. [(ADC)SnP]2 enables catalytic hydroboration of CO2 and reacts with elemental selenium and Fe2(CO)9 to afford [(ADC)2{Sn(Se)P2}SnSe] and [(ADC)Sn{Fe(CO)4}P]2, respectively. All compounds are characterized by multinuclear NMR spectroscopy and their solid‐state molecular structures are determined by single‐crystal X‐ray diffraction.
An Aqueous Rechargeable Al‐Ion Battery Based on Cobalt Hexacyanoferrate and Al Metal
Authors: Yuan Xinhai , Yuan Xuelong , Zhang Shuaishuai , Chen Peng , Wu Xiongwei , Ye Jilei , Liu Lili , Fu Lijun , Wang Tao , Ozoemena Kenneth I. , Wu Yuping 
Published: November 2023

AbstractLike other aqueous batteries, aqueous rechargeable Al‐ion batteries (ARAIBs) have attracted much attention due to their high safety and low cost. However, the low energy density of ARAIBs limits its popularization and application. In order to solve this problem, in addition to choosing Al metal as the negative electrode, it is also necessary to choose a suitable positive electrode material. Here, a cubic phase cobalt hexacyanoferrate (CoHCF) with excellent rate and cycling performance is used as the positive electrode material. Due to the reversible catalysis of the Cl−/Cl0 reaction at high potential in saturated AlCl3 solution, it has the characteristics of high capacity up to 103.5 mAh g−1. Combined with the Al metal as negative electrode, an ARAIB with an average discharge voltage of 1.56 V and an energy density of 155 Wh kg−1 is constructed, which shows outstanding cycling and rate performances.