bluuebunny/crossref_metadata_2025_split huggingface dataset:
Diseño de una propuesta didáctica para el uso de simuladores virtuales en la rama sanitaria de Formación Profesional
Authors: Romero Lopez Daniel , De Benito Crosetti Bárbara 
Published: July 2020

En este artículo se presenta el diseño, desarrollo y validación de una propuesta didáctica basada en el uso de simuladores virtuales, con la que se pretende conseguir una mejora en la preparación práctica del alumnado, llevada a cabo en un ciclo de Formación Profesional (FP) del ámbito sanitario. Las posibilidades de trabajar experiencias prácticas son escasas durante la formación del alumnado en los centros de Formación Profesional, debido a la carencia de espacios y oportunidades, algo fundamental para la preparación del periodo final de prácticas en los centros sanitarios. Para ello se utiliza un simulador virtual en el módulo de Tomografía Computarizada, permitiendo poner en práctica los conocimientos teóricos que van adquiriendo los alumnos durante su formación. Los resultados obtenidos permiten apreciar las ventajas de la simulación como medio de aprendizaje en la enseñanza relacionada con el ámbito clínico.
This article presents the design, development and validation of a didactic proposal based on the use of virtual simulators, with the intention of achieving an improvement in the practical preparation of students, carried out in a cycle of Vocational Training in the health field. The possibilities of working with practical experiences are scarce during the training of students in vocational training centers, due to the lack of spaces and opportunities, which is fundamental for the preparation of the final period of internships in health centers. For this reason, a virtual simulator is used in the Computerized Tomography module, allowing to put into practice the theoretical knowledge that students acquire during their training. The results obtained allow us to appreciate the advantages of simulation as a learning tool in teaching related to the clinical field.
Análisis de la competencia digital docente del profesorado de colegios rurales agrupado de la provincia de Albacete
Authors: Ruiz Ruiz Maria Del Pilar 
Published: July 2020

La transmisión de la cultura digital es uno de los retos más destacados del actual sistema educativo. La Unión Europea se plantea a través de la Estrategia Europa 2020 mejorar la accesibilidad, el uso y la calidad de las Tecnologías de la Información y de la Comunicación (TIC) en las zonas rurales. Para que ello sea posible, se precisan de recursos materiales y profesionales digitalmente competentes. En este estudio se pretende conocer la realidad que viven las escuelas rurales, de la provincia de Albacete, en lo que respecta a la calidad de la TIC, los recursos disponibles y las competencias digitales de sus docentes. Para ello, se ha empleado una metodología descriptiva y se ha utilizado el cuestionario como instrumento de recogida de información. Los resultados demuestran que las intenciones políticas no concuerdan con la realidad encontrada en nuestros datos. Las infraestructuras tecnológicas carecen de la calidad suficiente que posibiliten un acceso a internet de forma segura y eficaz. Por otro lado, los docentes que desempeñan su labor en estos centros hacen un uso limitado de las tecnologías en estas aulas, caracterizadas por ser multinivel, debido a la falta de formación en competencias digitales.
The transmission of digital culture is one of the most important challenges of the current education system. The European Union proposes, through the Europe 2020 Strategy, to improve the accessibility, use and quality of Information and Communication Technologies (ICT) in rural areas. For this to be possible, digitally competent material and professional resources are required. This study aims to know the reality of rural schools in the province of Albacete, in terms of the quality of ICT, the available resources and the digital skills of their teachers. For this, a descriptive methodology has been used and the questionnaire has been used as an information collection instrument. The results show that the political intentions do not match the reality found in our data. Technological infrastructures lack sufficient quality to enable internet access in a safe and efficient way. On the other hand, teachers who carry out their work in these centers make limited use of the technologies in these classrooms, characterized by being multilevel, due to the lack of training in digital skills.
A Multifunctional Blue‐Emitting Material Designed via Tuning Distribution of Hybridized Excited‐State for High‐Performance Blue and Host‐Sensitized OLEDs
Authors: Zhang Han , Zhang Bing , Zhang Yiwen , Xu Zeng , Wu Haozhong , Yin Ping‐An , Wang Zhiming , Zhao Zujin , Ma Dongge , Tang Ben Zhong 
Published: July 2020

AbstractActualizing full singlet exciton yield via a reverse intersystem crossing from the high‐lying triplet state to singlet state, namely, “hot exciton” mechanism, holds great potential for high‐performance fluorescent organic light‐emitting diodes (OLEDs). However, incorporating comprehensive insights into the mechanism and effective molecular design strategies still remains challenging. Herein, three blue emitters (CNNPI, 2TriPE‐CNNPI, and 2CzPh‐CNNPI) with a distinct local excited (LE) state and charge‐transfer (CT) state distributions in excited states are designed and synthesized. They show prominent hybridized local and charge‐transfer (HLCT) states and aggregation‐induced emission enhancement properties. The “hot exciton” mechanism based on these emitters reveals that a balanced LE/CT distribution can simultaneously boost photoluminescence efficiency and exciton utilization. In particular, a nearly 100% exciton utilization is achieved in the electroluminescence (EL) process of 2CzPh‐CNNPI. Moreover, employing 2CzPh‐CNNPI as the emitter, emissive dopant, and sensitizing host, respectively, the EL performances of the corresponding nondoped pure‐blue, doped deep‐blue, and HLCT‐sensitized fluorescent OLEDs are among the most efficient OLEDs with a “hot exciton” mechanism to date. These results could shed light on the design principles for “hot exciton” materials and inspire the development of next‐generation high‐performance OLEDs.
Biomimetic Molecule Catalysts to Promote the Conversion of Polysulfides for Advanced Lithium–Sulfur Batteries
Authors: Ding Xinwei , Yang Shuo , Zhou Suya , Zhan Yingxin , Lai Yuchong , Zhou Xuemei , Xu Xiangju , Nie Huagui , Huang Shaoming , Yang Zhi 
Published: July 2020

AbstractTo overcome the shuttle effect in Li–S batteries, novel biomimetic molecule catalysts are synthesized by grafting hemin molecules to three functionalized carbon nanotube systems (CNTs–COOH, CNTs–OH, and CNTs–NH2). The Li–S battery using the CNTs–COOH@hemin cathode exhibits the optimal initial specific capacity (1637.8 mAh g−1) and cycle durability (up to 1800 cycles). Various in situ characterization techniques, such as Raman spectroscopy, Fourier‐transform infrared reflection absorption spectroscopy, and UV–vis spectroscopy, combined with density functional theory computations are used to investigate the structure–reactivity correlation and the working mechanism in the Li–S system. It is demonstrated that the unique structure of the CNTs‐COOH@hemin composite with good conductivity and adequate active sites resulting from molecule catalyst as well as the strong absorption to polysulfides entrapped by the coordinated Fe(III) complex with FeO bond enables the homogeneous dispersion of S, facilitates the catalysis and conversion of polysulfides, and improves the battery's performance.
Heterogeneous Single‐Atom Catalysts for Electrochemical CO2 Reduction Reaction
Authors: Li Minhan , Wang Haifeng , Luo Wei , Sherrell Peter C. , Chen Jun , Yang Jianping 
Published: July 2020

AbstractThe electrochemical CO2 reduction reaction (CO2RR) is of great importance to tackle the rising CO2 concentration in the atmosphere. The CO2RR can be driven by renewable energy sources, producing precious chemicals and fuels, with the implementation of this process largely relying on the development of low‐cost and efficient electrocatalysts. Recently, a range of heterogeneous and potentially low‐cost single‐atom catalysts (SACs) containing non‐precious metals coordinated to earth‐abundant elements have emerged as promising candidates for the CO2RR. Unfortunately, the real catalytically active centers and the key factors that govern the catalytic performance of these SACs remain ambiguous. Here, this ambiguity is addressed by developing a fundamental understanding of the CO2RR‐to‐CO process on SACs, as CO accounts for the major product from CO2RR on SACs. The reaction mechanism, the rate‐determining steps, and the key factors that control the activity and selectivity are analyzed from both experimental and theoretical studies. Then, the synthesis, characterization, and the CO2RR performance of SACs are discussed. Finally, the challenges and future pathways are highlighted in the hope of guiding the design of the SACs to promote and understand the CO2RR on SACs.
Tailoring Polymer Colloids Derived Porous Carbon Spheres Based on Specific Chemical Reactions
Authors: Wang Tao , Okejiri Francis , Qiao Zhen‐An , Dai Sheng 
Published: July 2020

AbstractPorous carbon spheres derived from polymer colloids with regular geometry, monodispersed morphology, well‐controlled contents and structures play important roles in many areas of application, such as energy storage/conversion, gas adsorption/separation, catalysis, and chemo‐photothermal therapy. Suitable polymerization reaction and synthetic strategy are both critical for the obtainment of stable polymer colloids as carbon precursors. Basic polymerization reactions are the cornerstones of synthetic strategies, which directly provides the direct molecular‐based design of functionalized polymer/carbon spheres. Thus, this progress report mainly focuses on the summary of suitable polymerization reactions for colloidal polymer derived porous carbon spheres. Recent advances in the synthetic strategies and applications are also discussed, including their corresponding polymerization reactions. Finally, the perspectives for the development of polymer derived porous carbon spheres are provided based on the controlled synthesis of polymer colloids and optimization over the carbonization process to achieve highly functionalized carbon spheres for practical applications.
Oxygen‐Detecting Synaptic Device for Realization of Artificial Autonomic Nervous System for Maintaining Oxygen Homeostasis
Authors: Qian Chuan , Choi Yongsuk , Choi Young Jin , Kim Seongchan , Choi Yoon Young , Roe Dong Gue , Kang Moon Sung , Sun Jia , Cho Jeong Ho 
Published: July 2020

AbstractIncorporation of various functions of a biological nervous system into electronic devices is an intriguing challenge in the realization of a human‐like recognition and response system. Emerging artificial synaptic devices capable of processing electronic signals through neuromorphic functions operate such biomimetic systems similarly to biological nervous systems. Here, an oxygen‐sensitive artificial synaptic device that simultaneously detects oxygen concentration and generates a synaptic signal is demonstrated. The device successfully achieves an interconversion between the excitatory and inhibitory modes of the synaptic current at various oxygen concentrations by virtue of an oxygen‐sensitive trilayered organic double heterojunction. The oxygen‐induced traps in the organic layer modulate the majority charge carrier from holes to electrons, and this modulation induces an interconversion between the excitatory and inhibitory modes according to the environmental oxygen condition. Finally, the proposed synaptic device is applied to the realization of a negative feedback system for regulation of oxygen homeostasis, which mimics the human autonomic nervous system. The oxygen‐sensitive synaptic device proposed in this study is expected to open up new possibilities for the development of a biomimetic neural system that can respond appropriately to various environmental changes.
Laser‐Induced Silicon Oxide for Anode‐Free Lithium Metal Batteries
Authors: Chen Weiyin , Salvatierra Rodrigo V. , Ren Muqing , Chen Jinhang , Stanford Michael G. , Tour James M. 
Published: July 2020

AbstractThe development of a rechargeable Li metal anode (LMA) is an important milestone for improved battery technology. Practical issues hindering LMAs are the formation of Li dendrites and inactive Li during plating and stripping processes, which can cause short circuits, thermal runaway, and low coulombic efficiency (CE). Here, the use of a laser‐induced silicon oxide (LI‐SiOx) layer derived from a commercial adhesive tape to improve the reversibility of Li metal batteries (LMBs) is studied. The silicone‐based adhesive of the tape is converted by a commercial infrared laser into a homogeneous porous SiOx layer deposited directly over the current collector. The coating results in superior performance by suppressing the formation of Li dendrites and inactive Li and presenting higher average CE of 99.3% (2.0 mAh cm−2 at 2.0 mA cm−2) compared to bare electrodes. The thickness and morphology of the deposited Li is investigated, revealing a different mechanism of Li deposition on coated electrodes. The laser coating affords a method that is fast and avoids the use of toxic organic solvents and extensive drying times. The improved performance with the SiOx coating is demonstrated in LMB with a zero‐excess (“anode‐free”) configuration where a 100% improved performance is verified.
An Ultrahigh Energy Density Flexible Asymmetric Microsupercapacitor Based on Ti3C2Tx and PPy/MnO2 with Wide Voltage Window
Authors: Li Xingxing , Ma Yanan , Shen Peizhi , Zhang Chuankun , Cao Minglei , Xiao Shaojun , Yan Jinfeng , Luo Shijun , Gao Yihua 
Published: July 2020

AbstractTi3C2Tx MXene, as a new 2D material, with unique physical and chemical properties, is ideal for building high performance miniaturized electrochemical energy storage devices. However, the operating voltage window of Ti3C2Tx based microsupercapacitor (MSC) in symmetric structure is very narrow (≤0.6 V), which affects its practical application. Herein, a flexible asymmetric microsupercapacitor (AMSC) based on Ti3C2Tx//polypyrrole (PPy)/MnO2 is reported, where Ti3C2Tx is deposited on graphite paper (GP) by electrophoresis method as negative electrodes, MnO2 and PPy are electrochemically deposited on GP successively as positive electrodes, and polyvinyl alcohol/sulfuric acid (PVA/H2SO4) as the quasi‐solid electrolyte. This AMSC based on Ti3C2Tx//PPy/MnO2 operates at 1.2 V voltage window, which is two times wider than symmetric Ti3C2Tx based MSC. And its maximum areal capacitance and areal energy density can reach up to 61.5 mF cm−2 and 6.73 µWh cm−2 respectively. Moreover, three above AMSCs in series connection can turn on three lights after being charged. And the AMSC also shows high flexibility under mechanical bending level (bending angle with 0°–180°). The flexible AMSC based on Ti3C2Tx//PPy/MnO2 with ultrahigh energy density is a promising candidate for exploiting and fabricating next‐generation miniature integrated energy storage devices.
High‐Tc Enantiomeric Ferroelectrics Based on Homochiral Dabco‐derivatives (Dabco=1,4‐Diazabicyclo[2.2.2]octane)
Authors: Fu Da‐Wei , Gao Ji‐Xing , He Wen‐Hui , Huang Xue‐Qin , Liu Yu‐Hua , Ai Yong 
Published: July 2020

Abstract1,4‐Diazabicyclo[2.2.2]octane (dabco) and its derivatives have been extensively utilized as building units of excellent molecular ferroelectrics for decades. However, the homochiral dabco‐based ferroelectric remains a blank. Herein, by adding a methyl (Me) group accompanied by the introduction of homochirality to the [H2dabco]2+ in the non‐ferroelectric [H2dabco][TFSA]2 (TFSA=bis(trifluoromethylsulfonyl)ammonium), we successfully designed enantiomeric ferroelectrics [R and S‐2‐Me‐H2dabco][TFSA]2. The two enantiomers show two sequential phase transitions with transition temperature (Tc) as high as 405.8 K and 415.8 K, which is outstanding in both dabco‐based ferroelectrics and homochiral ferroelectrics. To our knowledge, [R and S‐2‐Me‐H2dabco][TFSA]2 are the first examples of dabco‐based homochiral ferroelectrics. This finding opens an avenue to construct dabco‐based homochiral ferroelectrics and will inspire the exploration of more eminent enantiomeric molecular ferroelectrics.
Engineering Platinum–Oxygen Dual Catalytic Sites via Charge Transfer towards Highly Efficient Hydrogen Evolution
Authors: Lu Fei , Yi Ding , Liu Shoujie , Zhan Fei , Zhou Bo , Gu Lin , Golberg Dmitri , Wang Xi , Yao Jiannian 
Published: July 2020

AbstractA dual‐site catalyst allows for a synergetic reaction in the close proximity to enhance catalysis. It is highly desirable to create dual‐site interfaces in single‐atom system to maximize the effect. Herein, we report a cation‐deficient electrostatic anchorage route to fabricate an atomically dispersed platinum–titania catalyst (Pt1O1/Ti1−xO2), which shows greatly enhanced hydrogen evolution activity, surpassing that of the commercial Pt/C catalyst in mass by a factor of 53.2. Operando techniques and density functional calculations reveal that Pt1O1/Ti1−xO2 experiences a Pt−O dual‐site catalytic pathway, where the inherent charge transfer within the dual sites encourages the jointly coupling protons and plays the key role during the Volmer–Tafel process. There is almost no decay in the activity of Pt1O1/Ti1−xO2 over 300 000 cycles, meaning 30 times of enhancement in stability compared to the commercial Pt/C catalysts (10 000 cycles).
Formyl MIDA Boronate: C1 Building Block Enables Straightforward Access to α‐Functionalized Organoboron Derivatives
Authors: Ivon Yevhen M. , Mazurenko Ivan V. , Kuchkovska Yuliya O. , Voitenko Zoya V. , Grygorenko Oleksandr O. 
Published: July 2020

AbstractFormyl MIDA boronate has been known to be an elusive type of acylboronate that has not been obtained to date. In this work, an approach to the one‐pot preparation and chemical transformations of formyl MIDA boronate were developed to provide new types of α‐functionalized organoboron compounds. Among them are acylboronate reagents which present boron‐substituted analogues of ynones and β‐dicarbonyl compounds. The developed synthetic procedures, utilizing formyl MIDA boronate, are tolerant to diverse functional groups, making this reagent an advantageous C1 building block for extending the scope of organoboron chemistry.
Motivations and impacts of sustainability reporting in the Indo‐Pacific region: Normative and instrumental stakeholder approaches
Authors: Qian Wei , Tilt Carol , Dissanayake Dinithi , Kuruppu Sanjaya 
Published: July 2020

AbstractDespite the elusive debate on different stakeholder approaches to sustainability reporting in the developed world, few studies have so far explored stakeholder influences on management perceptions of the motivations for and the impact of sustainability reporting in the developing country contexts. Using a survey questionnaire complemented by a series of interviews with business managers in five countries in the Indo‐Pacific region, this study investigates the motivations and impacts of the rapidly growing sustainability reporting practice in this emerging area. The study finds that corporate sustainability reporting in the Indo‐Pacific region is generally driven more by normative and regulatory stakeholder pressures than by economic considerations, especially for larger companies and companies with more overseas presence. However, in terms of the perceived impacts of sustainability reporting, economic benefits feature more prominently in both survey and interview data. It appears that companies believe they receive a win–win outcome by “doing good,” although their “doing good” is more from a normative and regulatory call than from a belief in business cases.
Interaction between severe chronic kidney disease and acute kidney injury in predicting mortality after transcatheter aortic valve implantation: Insights from the Italian Clinical Service Project
Authors: Adamo Marianna , Provini Martino , Fiorina Claudia , Giannini Cristina , Angelillis Marco , Testa Luca , Barbanti Marco , Merlanti Bruno , Poli Arnaldo , Ferrara Erica , Latib Azeem , Reimers Bernhard , Maffeo Diego , Bruschi Giuseppe , Montorfano Matteo , Petronio Anna Sonia , Bedogni Francesco , Tamburino Corrado , Metra Marco , Curello Salvatore 
Published: July 2020

AbstractAimsWe aim at exploring whether severe chronic kidney disease (CKD) may modify the impact of acute kidney injury (AKI) post‐transcatheter aortic valve implantation (TAVI) on early, mid, and long‐term mortality.Methods and resultsThe analysis included 2,733 TAVI patients from the Italian Clinical Service Project. The population was stratified in four groups according to the presence of baseline severe CKD and postprocedural AKI. All‐cause mortality was the primary end point. Postprocedural AKI is associated with an increased risk of early and mid‐term mortality after TAVI regardless of baseline severe CKD. Preprocedural severe CKD is associated with an increased risk of long‐term mortality after TAVI regardless of postprocedural AKI. No interaction between preprocedural severe CKD and postprocedural AKI was observed in predicting mortality at both 30‐day (CKD: hazard ratio [HR] = 2.65, 95% confidence interval [CI] = 1.15–6.12; no‐CKD: HR = 3.83, 95% CI = 2.23–6.58; Pint = .129) and 1‐year (CKD: HR = 2.29, 95% CI = 1.37–3.82; no‐CKD: HR = 2.47, 95% CI = 1.75–3.49; Pint = .386). Preprocedural severe CKD is an independent predictor of postprocedural AKI (HR = 2.17, 95% CI = 1.56–3.03; p < .001) as well as general anesthesia and access alternative to femoral. Among no‐AKI patients, those with severe CKD at admission underwent kidney function recovery after TAVI (serum creatinine at baseline 2.24 ± 1.57 mg/dL and at 48‐hr 1.80 ± 1.17 mg/dL; p = .003).ConclusionsPreprocedural severe CKD did not modify the impact of postprocedural AKI in predicting early and mid‐term mortality after TAVI. Closely monitoring of serum creatinine and strategies to prevent AKI post‐TAVI are needed also in patients without severe CKD at admission.
Fluorinated Oleophilic Electrochromic Copolymer Based on 3‐(N‐Trifluoroacetamido)thiophene and 3,4‐Ethylenedioxythiophene (EDOT)
Authors: Wang Hu , Shen Yiyao , Ma Peihua , Bonnefont Antoine , Lv Yaokang , Ruhlmann Laurent , Ni Hang , Liu Wuchan , Zhang Cheng 
Published: July 2020

AbstractA new fluorine‐containing monomer 3‐(N‐trifluoroacetamido)thiophene (F‐TH) was synthesized and characterized for the first time. Its molecular structure was determined through a single‐crystal X‐ray study. F‐TH functions as a building block in electropolymerization with 3,4‐ethylenedioxythiophene (EDOT) and subsequently gives a novel conjugated copolymer P(F‐TH : EDOT). Compared with the parent homopolymer poly(3,4‐ethylenedioxythiophene) (PEDOT) film, the sponge‐like nanoporous P(F‐TH : EDOT) film has a slightly larger band gap with a reduced hydrophilic and increased oleophilic surface. Spectroelectrochemical analysis results reveal that P(F‐TH : EDOT) exhibits excellent electrochromic performances with a higher optical contrast (55 %) and much shorter coloring time (0.70 s) than that of PEDOT (43 %, 1.54 s). The coloration efficiency value of P(F‐TH : EDOT) achieves up to 167.9 cm2/C, 55 % higher than that of PEDOT (108.1 cm2/C). These improved electrochromic properties of P(F‐TH : EDOT) are probably related with the enhanced wettability to electrolyte solution.