bluuebunny/crossref_metadata_2025_split huggingface dataset:
Morphological and magnetic analysis of Fe nanostructures on W(110) by using scanning tunneling microscopy and Lorentz microscopy
Authors: Schaefer Erik D. , Chernov Sergey V. , Sapozhnik Alexey A. , Kostyuk Dmytro M. , Zaporozhchenko Anna V. , Protsenko Serhiy I. , Bode Matthias , Nepijko Sergej A. , Elmers Hans-Joachim , Schönhense Gerd 
Published: January 2016

Abstract
We investigated morphological features and magnetic properties of epitaxial Fe nanostructures (films, stripes and nanoparticles) on a W(110) surface with monoatomic steps preferentially along the

direction. The nanostructures were prepared in ultra-high vacuum by using electron-beam evaporation and subsequent annealing at different temperatures. Scanning tunneling microscopy measurements in-situ revealed elongated Fe nanostructures with aspect ratios of up to

. The observable shape and orientation (along or perpendicular to the monoatomic steps of the substrate) of the nanostructures depended substantially on the preparation parameters. By capping the system with 7 monolayers of Pt, the magnetic properties of selected Fe nanostructures could be analyzed ex-situ using Lorentz microscopy revealing diversified results. Depending on the size and shape, different magnetization structures, such as single domain, two domains and vortex, were observed. A precise intensity profile analysis demonstrated that the magnetic field values of different magnetic structures are close to each other and equal 2.4 T.
H2O beams for zinc oxide film growth produced by a Pt-catalyzed H2–O2 reaction at various divergent aperture angles of a de Laval nozzle
Authors: Teraguchi Yusuke , Ishidzuka Yuki , Nakamura Tomoki , Takahashi Kazumasa , Tamayama Yasuhiro , Harada Nobuhiro , Yasui Kanji 
Published: January 2016

Abstract
High-energy H2O beams generated by a de Laval nozzle, meant for the growth of zinc oxide thin films through chemical vapor deposition, were assessed based on compressible flow theory at various divergent aperture angles. In this process, high temperature H2O was generated by a catalytic reaction between H2 and O2 on Pt nanoparticles and effused through the nozzle into the reaction zone. The theoretical beam temperature distributions, reduced scaling parameters and mean cluster sizes of the H2O beams generated at angles between 50 and 90° were evaluated. The reduced scaling parameters of the H2O beams for all angles were calculated to be less than 200 and the mean cluster sizes were estimated to be less than one irrespective of the divergent aperture angle of the nozzle, suggesting that clusters are not formed in the H2O beam in our apparatus. The crystallinity and electrical properties of the zinc oxide films grown using various divergent aperture angles were also evaluated.
The body speaks: physical and psychological aspects of stress in nursing professionals
Authors: Filgueira Martins Rodrigues Cláudia Cristiane , Pereira Santos Viviane Euzébia 
Published: January 2016

Objetivo: Identificar os efeitos do estresse no corpo físico e mental dos profissionais de enfermagem que atuam na UTI de um hospital universitário em Natal, RN. Método: Tratou-se de um estudo qualitativo de abordagem descritiva realizado junto a vinte e um profissionais de enfermagem da referida instituição. A coleta de dados se deu a partir de uma entrevista semiestruturada. Esta iniciou após a aprovação do estudo no CEP-HUOL sob nº de CAAE No 0037.0.294.000-11. A análise desses dados se deu por análise de conteúdo. Resultados: A categoria resultante da análise desses dados foi intitulada de “o corpo que sofre: as manifestações do estresse” e dentre os sintomas mais evidenciados pelos entrevistados destaca-se o cansaço físico e mental; dores musculares, desequilíbrio no ciclo do peso. Conclusão: Esses sintomas contribuem para o estresse profissional e diminuem a qualidade de vida desses trabalhadores em seu ambiente de atuação.
Care and culture: an interface in the nursing knowledge production
Authors: Denardin Budó Maria de Lourdes , Schimith Maria Denise , Neumaier Alves Camila , Wilhelm Laís Antunes , Ressel Lúcia Beatriz 
Published: January 2016

Objetivo: Caracterizar as produções científicas relacionadas à interface cuidado, enfermagem e cultura nos periódicos brasileiros nos últimos 26 anos. Método: Trata-se de uma revisão integrativa da literatura. A coleta de dados ocorreu em janeiro de 2013, nas bases de dados Literatura Latino-Americana e do Caribe em Ciências da Saúde, Scientific Electronic Library Online e Literatura Internacional em Ciências da Saúde. Resultados: Denota-se o entendimento de que somos seres socioculturais, cujo comportamento é construído individualmente, sendo tal processo ininterrupto e inacabado, uma vez que as relações humanas são permanentemente reconstruídas. Conclusão: A interpretação cultural dos eventos da área da saúde permite entender seus significados e a que se relacionam, de forma que possibilita uma vivência qualitativa mais significativa da prática de enfermagem, tanto para as enfermeiras, quanto para os sujeitos de seus cuidados.
Enhancing Wound Healing With Sprayable Hydrogel Releasing Multi Metallic Ions: Inspired by the Body's Endogenous Healing Mechanism
Authors: Ghosal Doyel , Majumder Nilotpal , Das Pratik , Chaudhary Shivani , Dey Sovan , Banerjee Priya , Tiwari Preeti , Das Piyali , Basak Piyali , Nandi Samit K , Ghosh Sourabh , Kumar Sachin 
Published: September 2024

AbstractIn the pursuit of new wound care products, researchers are exploring methods to improve wound healing through exogenous wound healing products. However, diverging from this conventional approach, this work has developed an endogenous support system for wound healing, drawing inspiration from the body's innate healing mechanisms governed by the sequential release of metal ions by body at wound site to promote different stages of wound healing. This work engineers a multi‐ion‐releasing sprayable hydrogel system, to mimic this intricate process, representing the next evolutionary step in wound care products. It comprises Alginate (Alg) and Fibrin (Fib) hydrogel infused with Polylactic acid (PLA) polymeric microcarriers encapsulating multi (calcium, copper, and zinc) nanoparticles (Alg‐Fib‐PLA‐nCMB). Developed sprayable Alg‐Fib‐PLA‐nCMB hydrogel show sustained release of beneficial multi metallic ions at wound site, offering a range of advantages including enhanced cellular function, antibacterial properties, and promotion of crucial wound healing processes like cell migration, ROS mitigation, macrophage polarization, collagen deposition, and vascular regeneration. In a comparative study with a commercial product (Midstress spray), developed Alg‐Fib‐PLA‐nCMB hydrogel demonstrates superior wound healing outcomes in a rat model, indicating its potential for next generation wound care product, addressing critical challenges and offering a promising avenue for future advancements in the wound management.
Metal Halide Perovskite Nanocrystals‐Intermediated Hydrogel for Boosting the Biosensing Performance
Authors: Li Hongxia , Hu Yanan , Zhang Yan , Zhang Hao , Yao Dong , Lin Yuehe , Yan Xu 
Published: September 2024

AbstractMetal‐halide perovskites have become attractive nanomaterials for advanced biosensors, yet the structural design remains challenging due to the trade‐off between environmental stability and sensing sensitivity. Herein, a trinity strategy is proposed to address this issue by integrating Mn (II) substitution with CsPb2Cl5 inert shell and NH2‐PEG‐COOH coating for designing Mn2+‐doped CsPbCl3/CsPb2Cl5 core/shell hetero perovskite nanocrystals (PMCP PNCs). The trinity strategy isolates the emissive Mn2+‐doped CsPbCl3 core from water and the Mn2+ d–d transition generates photoluminescence with a long lifetime, endowing the NH2‐PEG‐COOH capped Mn2+‐doped CsPbCl3/CsPb2Cl5 PNCs with robust water stability and oxygen‐sensitive property. Given the structural integration, photoluminescent hydrogel biosensors are designed by embedding the PMCP PNCs into the hydrogel system to deliver on‐site pesticide information on food products. Impressively, benefiting from the dual enzyme triggered‐responsive property of PMCP PNCs, the hydrogel biosensor is endowed with ultra‐high sensitivity toward chlorpyrifos pesticide at the nanogram per milliliter level. Such a robust PMCP PNCs‐based hydrogel sensor can provide accurate pesticide information while guiding the construction of photoluminescent biosensors for upcoming on‐site applications.
Spatial Structure of Electron Interactions in High‐entropy Oxide Nanoparticles for Active Electrocatalysis of Carbon Dioxide Reduction
Authors: Cai Wenwen , Cao Xueying , Wang Yueqing , Chen Song , Ma Jizhen , Zhang Jintao 
Published: September 2024

AbstractHigh‐entropy oxides (HEOs) exhibit distinctive catalytic properties owing to their diverse elemental compositions, garnering considerable attention across various applications. However, the preparation of HEO nanoparticles with different spatial structures remains challenging due to their inherent structural instability. Herein, ultrasmall high‐entropy oxide nanoparticles (less than 5 nm) with different spatial structures are synthesized on carbon supports via the rapid thermal shock treatment. The low‐symmetry HEO, BiSbInCdSn‐O4, demonstrates exceptional performance for electrocatalytic carbon dioxide reaction (eCO2RR), including a lower overpotential, high Faraday efficiency across a wide electrochemical range (−0.3 to −1.6 V), and sustained stability for over100 h. In the membrane electrode assembly electrolyzer, BiSbInCdSn‐O4 achieves a current density of 350 mA cm−2 while maintaining good stability for 24 h. Both experimental observations and theoretical calculations reveal that the electron donor–acceptor interactions between bismuth and indium sites in BiSbInCdSn‐O4 enable the electron delocalization to facilitate the efficient adsorption of CO2 and hydrogenation reactions. Thus, the energy barrier of the rate‐determining step is reduced to enhance the electrocatalytic activity and stability. This study elucidates that the spatial structure of metal sites in HEOs is able to regulate CO2 adsorption status for eCO2RR, paving the way for the rational design of efficient HEO catalysts.
Oxidation State and Halogen Influence on the NHC‐Gold‐Halide‐Catalyzed Cyclization of Propargylic Amides
Authors: Sargentoni Nicola , Galassi Rossana , Luciani Lorenzo , Rominger Frank , Rudolph Matthias , Hashmi A. Stephen. K. 
Published: September 2024

AbstractThe homogeneously catalyzed cycloisomerization reaction of propargylic amides was tested as benchmark reaction for two homologous series of Au(I) and Au(III) complexes with NHC ligands. This reaction is known to afford either aromatic oxazoles or dihydrooxazoles, depending on the oxidation state of the applied gold catalysts. For this purpose, symmetric and unsymmetric NHC ligands with mixed alkyl or benzyl substituents (1,3‐dimethyl‐imidazolyl‐2yl or 1‐benzyl‐3‐methyl‐imidazolyl‐2‐yl) and the corresponding Au(I) and Au(III) derivatives were prepared and characterized by analytical methods, IR and 1H and 13C NMR spectroscopies, and by X‐ray diffraction methods. Ten NHC‐gold(I) and NHC‐gold(III) complexes were tested on the cyclization reactions by adding gold catalysts in the presence and absence of AgPF6. Noteworthy, only the 1‐benzyl‐3‐methyl‐gold(III) trichloride was able to give selectively the aromatic oxazole without the addition of the silver salt. Interestingly, on contrary to what is reported in the literature, the use of gold(I) or gold(III) complexes does not influence the chemoselectivity of the cyclization reaction, while the halide bound to the metal does. In this regard, a mechanism purposing the dihydrooxazole as an intermediate for the formation of aromatic oxazole is proposed.
Material Trends and Clinical Costings in Systematically Identified CDER‐Approved Nanomedicines
Authors: Jarrett Thomas Ryan , Pregelj Lisette , Bell Craig Andrew , Fletcher Nicholas Lyle , Thurecht Kristofer James 
Published: September 2024

AbstractResearch into mechanisms and potential applications of nanomaterials in medicine has expanded steadily in recent decades, with increasing translational focus. Development costs, including for clinical trials, are often cited as factors limiting the translational viability of novel nanomedicines, especially compared to small new molecular entities (NMEs) and therapeutic biologics. Yet, to date, there has been no systematic investigation into the clinical programs or costs of translating and commercializing nanomedicines, nor a comparison to NMEs and therapeutic biologics, to support these claims. Here, nanomedicines approved by the United States Food and Drug Administration's Center for Drug Evaluation and Research (CDER) from 2011 to 2023 are systematically identified and categorized. Nanomedicines were identified as formulations where submicron particle size contributes to product function. Like biologics and NMEs, nanomedicines are most frequently approved for oncological indications. Notably, all anti‐cancer nanomedicines are indicated to treat orphan diseases, which is representative of the potential for nanomedicines to occupy pharmaceutical niches in treating diseases affecting smaller patient cohorts. The median estimated cost of pivotal trials for nanomedicines is 47% that of biologics and NMEs approved in the same timeframe. The findings indicate higher manufacturing costs in nanomedicine development may be mitigated by savings elsewhere, increasing translational viability.
Dual Polyanion Mechanism for Superionic Transport in BH4‐Based Argyrodites
Authors: Wang Pengbo , Liu Haoyu , Patel Sawankumar , Roberts Jason E. , Chen Yudan , Ogbolu Bright , Francisco Brian E. , Hu Yan‐Yan 
Published: September 2024

AbstractPolyanion rotations are often linked to cation diffusion, but the study of multiple polyanion systems is scarce due to the complexities in experimentally determining their dynamic interactions. This work focuses on BH4‐based argyrodites, synthesized to achieve a high conductivity of 11 mS cm−1. Advanced tools, including high‐resolution X‐ray diffraction, neutron pair distribution function analysis, and mutinuclear magic‐angle‐spinning nuclear magnetic resonance (NMR) spectroscopy and relaxometry, along with theoretical calculations, are employed to unravel the dynamic intricacies among the dual polyanion lattice and active charge carriers. The findings reveal that the anion sublattice of Li5.07PS4.07(BH4)1.93 affords an even temporal distribution of Li among PS43− and BH4−, suggesting minimal trapping of the charge carriers. Moreover, the NMR relaxometry unveils rapid BH4− rotation on the order of ∼GHz, affecting the slower rotation of neighboring PS43− at ∼100 MHz. The PS43− rotation synchronizes with Li+ motion and drives superionic transport. Thus, the PS43− and BH4− polyanions act as two‐staged dual motors, facilitating rapid Li+ diffusion.
Microwave‐Assisted PtRu Alloying on Defective Tungsten Oxide: A Pathway to Improved Hydroxyl Dynamics for Highly‐Efficient Hydrogen Evolution Reaction
Authors: Zhou Bowen , Wang Juping , Guo Lingfei , Li Hongdong , Xiao Weiping , Xu Guangrui , Chen Dehong , Li Caixia , Du Yunmei , Ding Hao , Zhang Yihe , Wu Zexing , Wang Lei 
Published: September 2024

AbstractPlatinum (Pt)‐based compounds are the benchmarked catalysts for hydrogen evolution reaction (HER) but exhibit slow kinetics in alkaline environments. The *OH accumulation on Pt surface can block active sites, affecting proton reduction and water re‐adsorption. Alloying Ruthenium (Ru) with Pt sites can significantly modulate the adsorption and desorption of water dissociation intermediates. Choosing suitable supports and utilizing metal‐support interaction (MSI) is crucial for active site optimization. PtRu alloy anchored on tungsten oxide (WO3) with rich oxygen vacancies (OV) is prepared through an ultrafast microwave‐assisted approach. Benefiting from the coupling effects between alloying and MSI, PtRu/WO3‐OV exhibits exceptionally high HER activity. In 1 m KOH, 1 m KOH + seawater, and 0.5 m H2SO4, it requires ultralow overpotentials of 9, 26, and 6 mV to achieve 10 mA cm−2, respectively. The designed catalyst surpasses commercial Pt/C in mass activity and demonstrates considerable potential for intermittent energy integration. Density functional theory reveals that alloying Ru with Pt sites significantly reduces the energy barrier of dissociating *OH, modulating blockage on the surface and then promoting the overall alkaline HER process. This study offers insights into the rapid synthesis of non‐carbon supported catalysts with Pt site modulation for alkaline hydrogen generation.
Regulating Water Activity and Solvation Structure via Zwitterion‐Enhanced Polymer Electrolyte for Long‐Life Zn‐Ion Hybrid Capacitors with Low‐Temperature Applicability
Authors: Jin Chunjiang , Yang Congcong , Xie Liheng , Mi Hongyu , Yin Hong , Xu Bo , Guo Fengjiao , Qiu Jieshan 
Published: September 2024

AbstractThe development of aqueous Zn‐based energy storage systems is plagued by poor cyclability and limited operating temperatures caused by Zn anode issues and highly active water. Herein, a frost‐tolerant hydrogel electrolyte (PABCHE) promoted by hydroxyl‐rich β‐cyclodextrin (β‐CD) and zwitterionic betaine (BA) additives is fabricated in situ to protect Zn anodes and enhance low‐temperature adaptability. Both additives synergistically disrupt the hydrogen‐bonding network between water molecules to remarkably reduce the freezing point of PABCHE and alleviate water‐associated side effects. Zwitterionic BA constructs ion‐migration channels and regulate Zn2+ solvation structure, promoting uniform and rapid transport of Zn2+. Additionally, PABCHE renders the Zn2+ homoepitaxially depositing along the (002) plane to achieve dendrite‐free Zn anodes. As a result, versatile PABCHE enables Zn//Zn cells to cycle stably for 1100 and 3600 h at 20 and −20 °C, respectively. Furthermore, the Zn‐ion hybrid capacitors optimized by PABCHE deliver favorable cyclability over 30000 cycles at 20 °C (with a capacity retention of 81.8%) and −20 °C (with a capacity retention of 84.2%). Additionally, PABCHE can be applied as a flexible strain sensor for real‐time monitoring of physiological activities. This work offers valuable insights for developing antifreeze hydrogel electrolytes toward applications of dendrite‐free low‐temperature Zn‐based devices and strain sensors.
Two‐Electron Phenothiazine Based Cathode Achieved by Raising HOMO Energy Level for High Performance Lithium Organic Battery
Authors: Zhang Sen , Cai Jia , Li Heyang , Xing Fangfang , Chen Ling , Wang Xiujuan , He Xiaoming 
Published: September 2024

AbstractRedox‐active p‐type phenothiazine based organic cathodes have captured increasing attention for lithium‐organic batteries due to their high voltage output and rich chemical modification. However, their capacities are generally limited to one redox event per molecule; while the di‐cation states are subject to rapid decomposition and cannot be effectively utilized. Herein, a scalable synthesis of phenothiazine‐based polymer (MPT‐CC) is reported, that can fully utilize the two‐electron storage by raising its highest occupied molecular orbital (HOMO). Lithium‐organic batteries using this polymer as cathode displayed a high specific capacity of 178 mAh g−1 at 0.2 A g−1. This polymer also displays excellent cycling stability. After 1000 cycles at 0.2 A g−1, a stable capacity of 194 mAh g−1 with ≈100% capacity retention can be obtained. Even at 2 A g−1 after 10,000 cycles, 98 mAh g−1 can be reversibly achieved. Its practical applicability has been successfully demonstrated in MPT‐CC//graphite full cell, also displaying good performance. This work contributes to a major advancement of phenothiazine‐based polymer design for high performance energy storage devices.
Soybean prediction using computationally efficient Bayesian spatial regression models and satellite imagery
Authors: Fischer Richard J. , Rekabdarkolaee Hossein Moradi , Joshi Deepak R. , Clay David E. , Clay Sharon A. 
Published: September 2024

AbstractPreharvest yield estimates can be used for harvest planning, marketing, and prescribing in‐season fertilizer and pesticide applications. One approach that is being widely tested is the use of machine learning (ML) or artificial intelligence (AI) algorithms to estimate yields. However, one barrier to the adoption of this approach is that ML/AI algorithms behave as a black block. An alternative approach is to create an algorithm using Bayesian statistics. In Bayesian statistics, prior information is used to help create the algorithm. However, algorithms based on Bayesian statistics are not often computationally efficient. The objective of the current study was to compare the accuracy and computational efficiency of four Bayesian models that used different assumptions to reduce the execution time. In this paper, the Bayesian multiple linear regression (BLR), Bayesian spatial, Bayesian skewed spatial regression, and the Bayesian nearest neighbor Gaussian process (NNGP) models were compared with ML non‐Bayesian random forest model. In this analysis, soybean (Glycine max) yields were the response variable (y), and spaced‐based blue, green, red, and near‐infrared reflectance that was measured with the PlanetScope satellite were the predictor (x). Among the models tested, the Bayesian (NNGP; R2‐testing = 0.485) model, which captures the short‐range correlation, outperformed the (BLR; R2‐testing = 0.02), Bayesian spatial regression (SRM; R2‐testing = 0.087), and Bayesian skewed spatial regression (sSRM; R2‐testing = 0.236) models. However, associated with improved accuracy was an increase in run time from 534 s for the BLR model to 2047 s for the NNGP model. These data show that relatively accurate within‐field yield estimates can be obtained without sacrificing computational efficiency and that the coefficients have biological meaning. However, all Bayesian models had lower R2 values and higher execution times than the random forest model.
Thiol‐Ene Coupling Reaction for Functionalization of Non‐Activated Alkenes: An Experimental Study on the Chemistry of the Methyl Oleate Amination
Authors: Polo Mara L. , Echeverri David A. , Soria Laureana R. , Vaillard Victoria A. , Meira Gregorio R. , Vaillard Santiago E. , Ríos Luis A. , Estenoz Diana A. 
Published: September 2024

AbstractThis work investigates the functionalization of molecules with non‐activated internal double bonds via thiol‐ene coupling (TEC) reaction. A comprehensive study of the reaction between cysteamine hydrochloride (CAHC) and methyl oleate (MO) was carried out. A series of reactions were conducted under different operating conditions in order to assess their effect on conversion and selectivity. Different conditions were considered like the type of atmospheres and solvents, a portionwise addition of CAHC, reagents concentrations, and excess of CAHC. Maximum conversion and selectivity were reached under inert atmosphere, diluted conditions, ethanol as solvent, and the addition of CAHC at the beginning of the reaction with a molar ratio of CAHC/MO of 3/1. This provides an approach for analyzing more complex reaction systems.
Gold Catalyzed [3+2] Oxidative Annulation of 1,3‐Enynes with Indoles
Authors: Zou Qiang , Wang Yu‐Jiang , Wan Ya‐Ru , Chen Zili 
Published: September 2024

AbstractAn efficient new method has been developed for the synthesis of ketone‐integrated cyclopentene‐fused indoline derivatives with a high regioselectivity through gold‐catalyzed oxidative cyclo‐coupling of 1,3‐enynes with indoles by using 2,6‐dichloropyridine N‐oxide as the terminal oxidant. A plausible mechanism has been proposed, in which, a cascade process of nucleophilic trapping of the vinyl gold carbene surrogate with indole followed by the subsequent intramolecular cyclization provides the dearomative formal [3+2] cycloaddition product. In addition, a scale‐up reaction and further derivation via cyclopentene's epoxidation & hydrazone derivative's 1,5‐ electrocyclization have been performed.