bluuebunny/crossref_metadata_2025_split huggingface dataset:
Estrategias para la Transformación Digital de un Centro Educativo: una revisión sistemática
Authors: Garcia Grau Francesc , Valls Bautista Cristina , Lázaro Cantabrana José Luis 
Published: December 2022

The use of digital technology favors the development of the teaching and learning process of the student and the transfer of information to the entire educational community. This study aims to identify the actions and mechanisms that an educational institution must take into account in its digital transformation through the use of digital technology. This research is approached as a systematic review based on the PRISMA 2020 model, between January 2011 and February 2021. In the study, after applying the different inclusion criteria in 69 references, the analysis of 13 publications is carried out. Through the ATLAS.ti software. 9.1.3 (2089), a content study is carried out based on the established codes. The main result of this sistematic review indicates that an educational institution must know the degree of digital maturity of all its components (students, teachers and center) and the state of its infrastructure. This knowledge is necessary in the implementation of strategic plans to improve the use of digital technology, both at a methodological and instrumental level, and thus facilitate digital transformation at the level of infrastructure, digital competence of teachers and digital competence of students through didactic methodologies that facilitate it together with digital inclusion.
El uso de la tecnología digital favorece el desarrollo del proceso de enseñanza-aprendizaje del alumno y la transferencia de información a toda la comunidad educativa. El presente estudio pretende identificar las acciones y los mecanismos que debe tener en cuenta una institución educativa en su transformación digital a través del uso de la tecnología digital. Esta investigación se aborda como una revisión sistemática basada en el modelo PRISMA 2020, entre enero de 2011 y febrero de 2021. En el estudio, después de aplicar los distintos criterios de inclusión en 69 referencias, se realiza el análisis de 13 publicaciones. A través del software ATLAS.ti. 9.1.3 (2089), se realiza un estudio de contenido a partir de los códigos establecidos. El principal resultado de esta revisión sistemática indica que una institución educativa debe conocer el grado de madurez digital de todos sus componentes (alumnos, docentes y centro) y el estado de su infraestructura. Este conocimiento resulta necesario en la implementación de planes estratégicos para mejorar el uso de la tecnología digital, tanto a nivel metodológico como instrumental, y así facilitar la transformación digital a nivel de infraestructuras, de competencia digital del profesorado y de competencia digital del alumnado a través de metodologías didácticas que la faciliten junto a la inclusión digital.
Implicaciones técnicas y prácticas de las Redes Adversarias Generativas a la Ciencia Abierta en Educación
Authors: Bethencourt-Aguilar Anabel , Castellanos-Nieves Dagoberto , Sosa-Alonso Juan José , Area-Moreira Manuel 
Published: December 2022

Generative Adversarial Networks (GANs), which are characteristic of Artificial Intelligence, allow the creation of synthetic anonymised data useful for Open Science in educational research. This study experiments with the creation of artificial data from a dataset obtained from a survey on levels of use of digital tools and frequency of personal activities with technology. The original data belong to a sample of students from postgraduate degrees at the University of La Laguna. The results show an adequate degree of similarity between the original data set and the set artificially created through predictive algorithms. Obtaining synthetic datasets equivalent to the original ones in structure, shape and extension allows the release of the data to the academic community, safeguarding the protection of confidential information and contrasting a technique that allows the promotion of Open Science from the collection and processing of the data. Generative Adversarial Networks can be used in educational research for the purpose of transparency in methodological and technical procedures and the dissemination of datasets for academic, research and educational purposes.
Las Redes Adversarias Generativas (GAN), propias de la Inteligencia Artificial, permiten la creación de datos sintéticos anonimizados útiles para hacer Ciencia Abierta dentro de la investigación educativa. El presente estudio realiza una experimentación en la creación de datos artificiales a partir de un conjunto de datos obtenidos de una encuesta sobre niveles de uso de herramientas digitales y la frecuencia de actividades personales con tecnología. Los datos originales pertenecen a una muestra de alumnado de las titulaciones de postgrado de la Universidad de La Laguna. Los resultados muestran un grado de similitud adecuado entre el conjunto de datos original y el conjunto creado artificialmente a través de algoritmos predictivos. La obtención de conjuntos de datos sintéticos equivalentes a los originales en estructura, forma y extensión permite la liberación de los datos a la comunidad académica salvaguardando la protección de la información confidencial y contrastando una técnica que permite impulsar la Ciencia Abierta desde la obtención y tratamiento de los datos. Las Redes Adversarias Generativas pueden ser utilizadas en la investigación educativa con fines hacia la transparencia en los procedimientos metodológicos y técnicos y a la difusión de conjuntos de datos para fines académicos, investigativos y educativos.
Effects of saddle tilt and stirrup length on the kinetics of horseback riders
Authors: Elmeua González Marc , Šarabon Nejc 
Published: December 2022

Background
How the modification of saddle fitting parameters in horse riding affects rider’s kinetics is very uncertain. The aim of this study is to describe how manipulating the two main adjustments that an end-user is likely to perform (saddle tilt and stirrup length) affects the biomechanics of a horse rider on a living horse.

Methods
Eleven showjumpers volunteered to take part in this study. Each participant performed a 120-strides standardization trial at trot and canter, with 0° saddle tilt and stirrup length that would position the rider’s knee at 90°. Following the standardization trial, four interventions were performed, which consisted of 60 strides with 60 mm shorter stirrups, 60 mm longer stirrups, 4° forward tilted saddle and 4° backward tilted saddle. Stirrup and rein tension forces were measured with tension loadcells. A symmetry index was calculated. Acceleration was measured with inertial measuring units at the helmet and back of the rider and shock attenuation was calculated.

Results
Shortening the stirrups and adjusting saddle tilt significantly enhanced shock attenuation at canter and increased force on the stirrups at trot and canter (p < 0.05). Lowering the stirrups reduced rein tension forces (p = 0.01). At trot, adjusting saddle tilt and stirrup length enhanced symmetry index on the bit (p < 0.05). These results allowed for general guidelines to be proposed, although individualization became an evident part of any saddle setup design due to a high inter-subject variability.
Prevalence, classification and dental treatment requirements of dens invaginatus by cone-beam computed tomography
Authors: Yalcin Turgut Yagmur , Bektaş Kayhan Kıvanç , Yilmaz Ayca , Göksel Sevde , Ozcan İlknur , Helvacioglu Yigit Dilek 
Published: December 2022

Background
This study aimed the evaluation of the prevalence, characteristics, types of dens invaginatus (DI) and co-observed dental anomalies to understand dental treatment requirements in anterior teeth that are susceptible to developmental anomalies by using cone-beam computed tomography (CBCT).

Methods
In this retrospective study, the anterior teeth of 958 patients were evaluated by using CBCT for the presence of DI. The demographic features, types of DI and treatment requirements were also recorded. The association between sex and the presence of DI was evaluated using chi-squared test.

Results
Seventy-three DI anomalies were detected in the anterior teeth of 49 patients (18 females, 31 males). The frequency of DI was 5.11% and the most frequently involved teeth were lateral (57.53%). Forty-six teeth were classified as Type I (63.01%), 24 as Type II (32.87%), and three as Type III (4.10%). Apical pathosis was found to be 20.54% in all DIs detected and accounted for all Type III and one-third of Type II.

Conclusions
CBCT imaging can be effective in the detection of dental anomalies such as DI and planning for root canal therapy and surgical treatments. Prophylactic interventions might be possible to prevent apical pathosis with the data obtained from CBCT images.
Lipid Abnormalities among Libyan HIV-Infected Patients Receiving Antiretroviral (ARV) Drugs and ARV Naïve Patients
Authors: Younis M. Y. G. , El-Sherif Mona , Alhaddad Ahmed B. 
Published: December 2022

Introduction: Majority of untreated or Anti-Retroviral (ARV) treated HIV subjects may experience a lot of metabolic alterations including dyslipidemia, lipodystrophy and insulin resistance.
Aim: Due to the shortage of research data related to HIV infection. We conducted this study to assess the lipid profile in HIV infected subjects and to find a correlation between liver function enzymes and other biomarkers and serum lipid alterations among Libyan HIV subjects.
Materials and Methods: Case control study included 121 Libyan HIV-1 positive subjects (101 subjects were on First-line ARV treatment regimens and 21 untreated "Naïve") from Benghazi Medical Center (BMC) and Benghazi center for infectious diseases and immunology (BCIDI) during 2018-2019 to evaluate lipid profile and other biochemical parameters. Control group included 70 age-matched HIV negative individuals. The age range of the study participants was 20-45 years.
Results: The means of CD4 count in the ARV treated HIV subjects were significantly (P <0.014) lower compared CD4 count of untreated HIV group. The mean total cholesterol (TC) level of ARV treated HIV subjects (174 ± 42 mg/dl) was significantly (P<0.012) increased compared to untreated HIV subjects (149 ± 31mg/dl). In accordance, LDL-C levels showed a significant (P <0.014) increase in the ARV treated HIV subjects compared to the untreated HIV subjects. On the other hand, mean HDL-C showed no significant alteration in the ARV treated HIV subjects compared to untreated HIV subjects.
Conclusion: In ARV-treated HIV patients showed higher TC and LDL-C suggesting a role of these drugs upon lipid metabolism.
The mechanism by which HIV drugs affect lipid profile need to be fully understood by further research.
Unaltered HDL-C and LDL/HDL atherogenic risk ratio indicate reduced risk for developing cardiovascular disease among HIV subjects.
3D Printable Ultra‐Highly Porous and Mechanically Strong Foam Materials for Multiple Applications
Authors: Wang Chao , Zhang Youfei , Zhang Boran , Yang Jinlong 
Published: December 2022

AbstractHighly porous foam ceramics exhibit broad prospects for multifunctional applications. With the facile Pickering‐based foaming technique, wet foams consisting of nanoparticles (NPs) may exhibit high strengths. However, they also experience linear shrinkages as high as 50% after drying and sintering process. Suitable solutions for improving this situation have not been found yet. This work develops a method for fabricating NP‐made foam ceramics by tuning the interfacial chemistry of this Pickering system. Trace amounts of ethanol are used to adjust the adsorbing behavior of surfactants on the silica surface to enhance the energy of attachment of the Pickering systems. Combined with the altered capillary forces, the linear shrinkages of the foam ceramic are considerably lowered. The pore wall of the obtained foam ceramics can be tuned to either closed or open due to the “coffee ring” effect by adjusting the solid content and sintering temperature. The samples present high thermal insulating properties and high mechanical strength even the unsintered ones, which also show good stability in liquid environments. Combined with the direct ink writing (DIW) technique, these freely shaped materials with tunable pore structures can be readily exploited in tissue scaffolds, catalyst carriers, thermal insulators, battery electrodes, and liquid/gas filtration, etc.
All Two‐dimensional Integration‐Type Optoelectronic Synapse Mimicking Visual Attention Mechanism for Multi‐Target Recognition
Authors: Chen Yabo , Kang Yan , Hao Hao , Xie Xiangnan , Zeng Junwei , Xu Tao , Li Cheng , Tan Yinlong , Fang Liang 
Published: December 2022

AbstractThe human visual attention mechanism enables them to rapidly perceive important information and objects in a complex external scene; this effectively solves the problems of data redundancy, low‐resolution images, and substantial computing resources. The process by which the attention system reconstructs the visual information can be considered as integrating internal attention signals with external visual details in the postsynaptic neuron. However, electronic devices that simulate visual attention modulation by incorporating device characteristics into neuromorphic vision systems (NVSs) to achieve visual attention behavior are rarely reported. Herein, a synapse device that integrates optical and electrical stimulation is designed using ReS2/hBN/monolayer graphene heterojunction to mimic attention regulation and integrate multiple neuron signals successfully. The synapse array can imitate perceptual learning of the human visual system (HVS) to realize visual preprocessing, such as image contrast improvement and weak signal enhancement at the sensory terminal, and overcome data redundancy. Moreover, by applying gate voltage pulses, electric‐tunable synaptic plasticity is successfully observed, attributed to the carrier trapping and de‐trapping mechanism in the floating layer. Attention stabilization, fluctuation, distraction, and reinforcement are exhibited, simulating the attention behaviors of the HVS. Thus, an NVS with attention mechanism is established depending on the optoelectronic hybrid synaptic plasticity of the device, which successfully mimics the HVS to perform a multi‐target recognition task. Furthermore, the effect of device defects on the NVS is rarely evaluated, in which a method is provided to analyze the application results of the NVS when considering uniformity and fault rate. This study may provide new inspiration for developing neuromorphic vision systems for autonomous driving and brainwave control in the future.
Ultra‐Wideband Electrostrictive Mechanical Antenna
Authors: Xu Jianchun , Li Zhao , Pan Xuchao , Wen Xi , Cao Jinqing , Gong Wen , Yang Shaolong , Lei Ming , Yao Fangzhou , Bi Ke 
Published: December 2022

AbstractMechanical antennas based on piezoelectric materials can effectively reduce the size of long wave antennas down to 1/1000 of the wavelength (from km scale to mm level). However, the narrow bandwidth and weak field intensity seriously restrict its practical applications in transmission distance and channel capacity. Here, a mechanical antenna‐based electrostrictive effect of relaxor ferroelectric ceramic (PMN‐PT) is proposed to improve radiation capacity and achieve ultra‐wideband characteristics (10 kHz–1 MHz). Due to the ultra‐high dielectric constant at working temperature and the relationship between the strain and applied field intensity, the proposed antenna gets rid of the dependence on the poled materials and exhibits excellent communication properties beyond traditional mechanical antennas, which are experimentally demonstrated by a practical wireless communication system. Only using a single proposed mechanical antenna with 8 mm diameter and 3 mm thickness, the effective communication with a transmission distance of 200 m can be realized. This design offers a promising way of constructing mechanical antennas for long‐wave communication.
Embossed Template Induced Particles Assembly for Heterostructures and the Application in High‐Security Encryption
Authors: Guo Dan , Ruan Jun , Xu Yanan , Li Kaixuan , Han Yu , Guo Jinxin , Zhang Xinping , Li Yixuan , Ge Kun , Zhai Tianrui , Song Yanlin 
Published: December 2022

AbstractThe coassembly of primary particles into heterostructures represents a significant strategy for advanced fabrication of multi‐functional materials or devices, and templated assembly has shown remarkable advantage for deterministic placement of particles and the efficient integration with substrates. However, template induced particles coassembly, which is significant for integrating multicomponents at desired positions, is still challenging. Herein, a facile strategy of embossed templateinduced particles coassembly for diverse superstructures and precise patterns is reported. Tunable region selective assembly of particles is demonstrated by controlling the resistance force via designing the embossed edge and surface roughness of the template. Through regulating the template morphologies and particles composition, well‐controlled coassembly of “flower” shaped heterostructure and chiral superstructure arrays are realized. Furthermore, the printable nanomaterials self‐assembly template is employed to achieve totally bottom‐up fabrication of excitation responsive heterostructure arrays, in which the multi‐photons process based energy transfer is studied to show the application in high‐secure encryption. With the advantage of accurate position and compatible to different materials, this strategy is expected to provide a promising platform for fabricating micro/nanoscale advanced devices.
Tuning a Solvation Structure of Lithium Ions Coordinated with Nitrate Anions through Ionic Liquid‐Based Solvent for Highly Stable Lithium Metal Batteries
Authors: Huang Gaoxu , Liao Yaqi , Zhao Xianming , Jin Xiaopan , Zhu Zhipeng , Guan Mengjia , Li Yongsheng 
Published: December 2022

AbstractRational design of promising electrolyte is considered as an effective strategy to improve the cycling stability of lithium metal batteries (LMBs). Here, an elaborately designed ionic liquid‐based electrolyte is proposed that is composed of lithium bis(trifluoromethanesulfonyl)imide as the lithium salt, 1‐ethyl‐3‐methylimidazolium nitrate ionic liquid ([EMIm][NO3] IL) and fluoroethylene carbonate (FEC) as the functional solvents, and 1,2‐dimethoxyethane (DME) as the diluent solvent. Using [EMIm][NO3] IL as the solvent component facilitates a special Li+‐coordinated NO3− solvation structure, which enables the continues electrochemical reduction of solvated NO3− and the formation of remarkably stable and conductive solid electrolyte interface. With FEC as another functional solvent and DME as the diluent solvent, the formulated electrolyte delivers high oxidative stability and ionic conductivity, and endows improved electrochemical reaction kinetics. Therefore, the formulated electrolyte demonstrates exceedingly reversible and stable Li stripping/plating behavior with high average Coulombic efficiency (98.8%) and ultralong cycling stability (3500 h). Notably, the high‐voltage Li|LiNi0.8Co0.1Mn0.1O2 full cell with IL‐based electrolyte exhibits enhanced cyclability with a capacity retention of 65% after 200 cycles under harsh conditions of low negative/positive ratio (3.1) and lean electrolyte (2.5 µL mg−1). This study creates the first NO3−‐based ionic liquid electrolyte and evokes the avenue for practical high‐voltage LMBs.
Tapered Cross Section Photoelectron Spectroscopy Provides Insights into the Buried Interfaces of III‐V Semiconductor Devices
Authors: Maheu Clément , Zare Pour Mohammad Amin , Damestoy Iban , Ostheimer David , Mellin Maximilian , Moritz Dominik C. , Paszuk Agnieszka , Jaegermann Wolfram , Mayer Thomas , Hannappel Thomas , Hofmann Jan P. 
Published: December 2022

AbstractInterfaces are key elements that define electronic properties of the final device. Inevitably, most of the active interfaces of III–V semiconductor devices are buried and it is therefore not straightforward to characterize them. The Tapered Cross Section Photoelectron Spectroscopy (TCS‐PES) approach is promising to address such a challenge. That the TCS‐PES can be used to study the relevant heterojunction in epitaxial III–V architectures prepared by metalorganic chemical vapor deposition is demonstrated here. A MULTIPREP polishing system that enables controlling the angle between the sample holder and the polishing plate has been employed to improve the reproducibility of the polishing procedure. With this procedure, that preparing the TCS of III–V semiconductor devices with tapering angles lower than 0.02° is possible is demonstrated. The PES provides then information about the buried interfaces of Ge|GaInP and GaAs|GaInP layer stacks. Both, chemical and electronic properties have been measured by PES. It evidences that the preparation of the TCSs under an uncontrolled atmosphere modifies the pristine properties of the critical buried heterointerfaces. Surface states and reaction layers are created on the TCS surface, which restrict unambiguous conclusions on buried interface energetics.
Thin Films of Solvatomagnetic CN‐Bridged Coordination Polymers: From Micro to Nanoscale
Authors: Pacanowska Aleksandra , Fitta Magdalena , Kozieł Marcin , Nowicka Beata 
Published: December 2022

AbstractTwo types of thin films differing in thickness and morphology of microporous CN‐bridged hybrid organic–inorganic {[NiII(cyclam)]3[MIII(CN)6]2∙nH2O}n (M = Cr or Fe, cyclam = 1,4,7,11‐tetraazacyclotetradecane) coordination networks are obtained by using physical and chemical deposition techniques. By adsorption on the PET/ITO substrate of the pre‐formed nano‐sized crystallites from water suspension, films of 1–2 µm thickness composed of 40–200 nm size particles are obtained. The use of chemical sequential growth method, in which the coordination framework is anchored to the gold surface and built directly on the substrate from the cationic and anionic building blocks, reduces the film thickness to 100 nm and drastically improves film morphology. Both types of thin films show solvatomagnetic behavior characteristic for bulk compounds and change magnetic characteristics, including the shape of the magnetic hysteresis, under different humidity conditions.
Pressure‐Temperature Dual‐Parameter Flexible Sensors Based on Conformal Printing of Conducting Polymer PEDOT:PSS on Microstructured Substrate
Authors: Meng Xiangyou , Mo Lixin , Han Shaobo , Zhao Jing , Pan Yaqin , Wang Fangdong , Fang Yi , Li Luhai 
Published: December 2022

AbstractFlexible sensors play an important role in collecting stimuli information and sending them to a central processing unit or cloud for analysis and decision‐making. As much information is needed to be collected, the fabrication of multiparameter flexible sensors is becoming increasingly urgent. To this end, conducting polymer‐based composites have been proven as promising materials for developing pressure‐temperature dual‐parameter sensors. However, fabrication of ideal dual‐parameter sensors with fully decoupled pressure‐temperature readings, good sensitivity, and a simple preparation process remain challenges. Here, a strategy of fabricating a pressure‐temperature dual‐parameter sensor based on conformal printing of conducting polymer poly(3,4‐ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) on the surface of microstructured polydimethylsiloxane (PDMS) substrate is demonstrated. It is found that secondary doped PEDOT:PSS provides temperature‐independent conductivity. Combined with the sea‐island microstructured PDMS substrate, a screen‐printed flexible sensor demonstrates fully decoupled pressure‐temperature reading ability, competitive sensitivity, and good stability. The excellent sensing properties of the devices, with a maximum pressure sensitivity of 134.25 kPa−1and linear response region over 300 kPa as well as highly sensitive temperature sensing for finger touch, together with their unique advantages of low‐cost and large‐area fabrication, make the printed flexible dual‐parameter sensors promising applications in electric‐skin (e‐skin), human‐machine interaction, and robotics.