bluuebunny/crossref_metadata_2025_split huggingface dataset:
Evaluation of the Feasibility of a Telemedical Examination of the Hip and Pelvis – Early Lessons from the COVID-19 Pandemic
Authors: Jaenisch Max , Kohlhof Hendrik , Touet Amadeo , Kehrer Michael , Cucchi Davide , Burger Christof , Wirtz Dieter Christian , Welle Kristian , Kabir Koroush 
Published: December 2020

Abstract
Introduction Due to the current COVID-19 pandemic, the German Health Ministry has issued restrictions applying to the field of orthopaedics and trauma surgery. Besides postponement of elective surgeries, outpatient consultations have been drastically reduced. Parallel to these developments, an increase in telemedical consultations has reflected efforts to provide sufficient patient care. This study aims to evaluate the feasibility of a clinical examination of the hip joint and pelvis by way of a telemedical consultation.
Materials and Methods Twenty-nine patients of a German university clinic were recruited and assessed in both telemedical and conventional examinations. Agreement between the two examinations was then assessed, and connections between the observed agreement and patient-specific factors such as age, BMI and ASA classification were investigated.
Results The inspections agreed closely with a mean Cohenʼs kappa of 0.76 ± 0.37. Palpation showed adequate agreement with a mean Cohenʼs kappa of 0.38 ± 0.19. Function showed good agreement with a mean Cohenʼs kappa of 0.61 ± 0.26 and range of motion showed adequate agreement with a mean Cohenʼs kappa of 0.36 ± 0.19. A significant positive correlation was observed between the number of deviations in the different examinations and age (p = 0.05), and a significant positive correlation was shown between the number of non-feasible examinations and age (p < 0.01), BMI (p < 0.01) and ASA classification score (p < 0.01).
Discussion Inspection and function can be reliably evaluated, whereas the significance of palpation, provocation and measurement of range of motion is limited. The small sample size puts limitations on the significance of a statistically relevant correlation between patient-specific factors such as age, BMI and ASA classification score and valid and successful implementation of a telemedical examination. The authors recommend targeted patient selection. If, however, patients are being evaluated who are very old (> 75 years), obese (BMI > 30) or with multiple comorbidities (ASA 3 and above), caution is advised. Large, prospective studies are needed in the future to fully validate telemedical consultations in the fields of orthopaedics and trauma surgery.
Conclusion A telemedical examination of the hip joint and pelvis can be performed with certain limitations. Patient-specific factors such as age, BMI, and extent of comorbidities appear to have a relevant impact on validity and execution of the examination. Patients with multiple comorbidities (ASA 3 and above), advanced age (> 75 years) or obesity (BMI > 30) should, whenever possible, be examined in a conventional outpatient setting.
A atuação do médico residente em ortopedia e traumatologia em um hospital de grande porte do Sistema Único de Saúde: Qual a visão do usuário?
Authors: de Oliveira Luiz Felippe Mokdeci Martins , Ramallo Daniel Alves , Möller João Victor Silveira , Leal Ana Carolina , Ribeiro Gabriel Araujo , Guimarães João Antonio Matheus 
Published: December 2020

ResumoObjetivo Avaliar o conhecimento de pacientes atendidos em um hospital-escola acerca da formação acadêmica e profissional do médico residente em ortopedia e traumatologia, bem como sua área de atuação, e determinar a percepção de conforto e segurança do paciente em relação a ser assistido pelo médico residente em diferentes etapas do tratamento.Métodos Foi realizado um estudo transversal com pacientes internados em um hospital de ortopedia de grande porte do Sistema Único de Saúde (SUS). Os dados foram coletados a partir da aplicação de um questionário contendo 19 questões objetivas que avaliaram parâmetros sociodemográficos e a percepção do paciente quanto à atuação do residente. Os dados foram analisados de forma a avaliar a frequência das respostas obtidas.Resultados Foram avaliados 152 participantes, predominantemente do sexo masculino (62,5%) e com idade entre 36 e 55 anos (41,3%). Apenas 43,3% tinham conhecimento sobre a formação acadêmica do residente. Os pacientes relataram se sentir mais seguros e confortáveis em serem assistidos pelo médico em conjunto com o residente na consulta ambulatorial (43,3%), na enfermaria (39,3%) e durante a cirurgia (61%). Quanto à atuação do residente, 80,2% afirmaram que o médico residente melhora a comunicação entre o paciente e o cirurgião principal, entretanto e apenas 11% disseram se sentir seguros e confortáveis sendo cuidados exclusivamente por residentes no ambiente cirúrgico, caso fosse permitido.Conclusão A participação de médicos residentes nos cuidados é bem recebida pelos pacientes, desde que em companhia do médico assistente. Os pacientes identificam nos residentes uma ponte facilitadora na comunicação com os médicos assistentes.
Análisis bibliométrico y de mapeo de la educación en cirugía laparoscópica y robótica en urología
Authors: Torres Lynda , Pedraza Adriana , Arroyo Lisset , Mesa Melanie López de , Tobar Verónica , Perdomo Pamela , Cárdenas Ana Maria , Solano Catalina 
Published: December 2020

Resumen
Objetivo Se realizó un análisis bibliométrico para conocer la situación actual de la educación en cirugía laparoscópica y robótica en urología.
Métodos La búsqueda fue realizada en la base de datos MEDLINE y EMBASE en marzo de 2020, a través del facilitador de búsqueda: FABUMED y PUBMED-PUBREMINER, utilizando los siguientes criterios (Laparoscopy OR robotics) AND (education urology) AND (1988:2019[dp])) y establecer los artículos disponibles respecto a educación en cirugía laparoscópica en urología. Adicionalmente se realizó un análisis de mapeo bibliométrico así como mapas de redes de colaboración.
Resultados Se obtuvieron 1383 revisiones en la literatura publicadas en 172 revistas. Las revistas con más publicaciones fueron: Journal of Endourology (167) y factor de impacto (FI) 2.26, BJU International (101, FI 4.52) Urology (90, FI 1.86) y Journal of Urology (71, FI 5.6). La producción total se dio en 49 países, los países con mayor número de publicaciones fueron Estados Unidos con 362 (26.1%) y Reino Unido 152 (10.9%), Latinoamérica estuvo encabezada por Brasil con 17 publicaciones.
Conclusiones El mayor número de publicaciones se observó a partir del 2006 years durante la última década ha estado liderado por Estados Unidos. En Colombia la investigación de educación en cirugía laparoscópica y robótica es mínima, posiblemente por carecer de programas de entrenamiento en los programas de residencia. Este análisis bibliométrico permite mostrar que la producción bibliográfica en esta área puede depender de que existan programas formales de entrenamiento que a futuro beneficien a toda la comunidad urológica.
Factores asociados a la histología de masa residual retroperitoneal post quimioterapia en tumor testicular de células germinales
Authors: Torres Lynda , Ramos Jose Gustavo , Varela Rodolfo , Godoy Fabian , Orrego Paola Andrea , Mosquera AysaVanessa , Vecino Sandra Viviana Pulido 
Published: December 2020

Resumen
Objetivo El objetivo de este estudio es describir las características y factores relacionados con la histología de la masa residual postquimioterapia en pacientes con tumor de células germinales de origen testicular sometidos a linfadenectomía retroperitoneal durante 12 años de seguimiento.
Métodos Retrospectivamente se recolectaron datos clínicos, quirúrgicos y patológicos de la historia clínica de los pacientes en un centro de referencia de manejo de cáncer durante un periodo de 12 años. Se estimó la asociación entre los datos recolectados con la histología del tumor residual post quimioterapia.
Resultados Se incluyeron 64 pacientes, la edad promedio fue 28.1 años, el tamaño promedio de masa residual fue de 6.7 cm. La histología de la masa residual fue teratoma en 60.9%, necrosis 26.5% y tumor viable 12.5%. El grupo pronóstico tiene asociación con la histología de la masa retroperitoneal. Las masas con histología de necrosis tuvieron menor tamaño con media 6.5 cm mientras que otras histologías tuvieron tamaño promedio de la masa residual de 10.4 cm.
Conclusiones La LNDRP-PC es el estándar de tratamiento en masas residuales retroperitoneales después de quimioterapia y puede generar sobre-tratamiento hasta en 50% de los casos. El teratoma en la histología testicular está relacionado mayor tamaño de la masa residual retroperitoneal. Las características histológicas de la masa residual son comparables con otras series.
Estado actual de las mujeres en la fuerza laboral en urología. Análisis bibliométrico
Authors: Solano Catalina , Ortiz Ana María Cárdenas , Jaimes Luz Marina Bernal , Saavedra Daisy Ximena Roa , Ospino Catalina Osorio , Basto Catalina Sánchez 
Published: December 2020

ResumenIntroducción Las mujeres han incursionado y aumentado en todas las áreas médico quirúrgicas y específicamente en la Urología, representando aproximadamente un 10% de esta fuerza laboral.Objetivo Describir el estado actual de las mujeres en la fuerza laboral en Urología a nivel mundial.Métodos Análisis bibliométrico basado en búsqueda retrospectiva de la literatura del año 1969 a 2019, mediante base de datos: MEDLINE, FABUMED y PubReminder®, utilizando términos de búsqueda: (workforce) AND (urology), incluyendo: artículos de revista, artículos originales de investigación, reseñas, ensayos y otros informes científicos. Se obtuvo el factor de impacto (FI) mediante Journal Citation Reports 2017/2018. A través de Scopus se obtuvo el h-index (HI). Las variables analizadas fueron: número total de publicaciones, revistas, autores, instituciones, porcentaje de publicaciones por revista y país, patrón de producción científica a lo largo del período estudiado. Se realizó análisis de mapeo bibliométrico con software VOSviewer®.Resultados Se encontraron un total de 352 revisiones desde el año 1969 hasta 2019. El mayor porcentaje de publicaciones fueron en la última década. Se encontraron en total 131 revistas, de ellas, 28 específicas de urología. La revista con mayor número de publicaciones fue el Journal of Urology. El 90% de los autores provienen de Estados Unidos y del total de artículos solo dos autores principales eran mujeres.Conclusiones El interés por determinar el papel de la mujer en la fuerza laboral urológica es reciente y se correlaciona con el aumento de la representación femenina en esta área.
Shared syntactic representations in bilinguals
Authors: Song Yoonsang , Lai Ryan K. Y. 
Published: December 2020

Abstract
The current study explores the nature of constituent-structure-independent structural priming across the two
languages of bilinguals. Specifically, this study tests whether such cross-linguistic priming involves the priming of
functional-level syntactic representations shared between the languages, which can be distinguished from the priming of mainly
non-syntactic information (e.g., information structure, thematic-role order). Critical prime sentences consisted of Cantonese
actives in the Object-Subject-Verb (OSV) order and passives where the patient was grammatically topicalized with the same topic
particle. Target responses were produced in English actives or passives. The results show that robust priming from Cantonese
Topic-Passives to English passives occurred, but no cross-linguistic priming was observed for Cantonese Topic-OSV active primes.
The Topic-OSV active and Topic-Passive constructions share information structure, and are formed in different constituent
structures from English actives and passives. Therefore, the robust cross-linguistic passive priming by Topic-Passive primes
should in large part be ascribed to functional-level syntactic representations of passive constructions shared by Cantonese and
English.
A change of setting
Authors: García-Amaya Lorenzo 
Published: December 2020

AbstractThough study abroad (SA) is becoming an increasingly popular educational avenue for second-language (L2) learners, there is little knowledge of what factors create a successful learning experience. One methodological approach is to consider the amount of time students use their L2 while abroad, and subsequently consider what factors (linguistic, personal, or social) might lead to increased or diminished L2 use. The current study examines data collected in 2010, in which 27 learners from an intensive overseas-immersion program in Spain completed the Language Contact Profile (LCP). Throughout the program, the learners were bound to a language commitment, pledging to speak, read, and write only in their L2. The results presented here, both quantitative and qualitative, suggest that the language pledge was largely followed, reflecting high levels of L2 use; the results also allude to some advantages and disadvantages of using the LCP to track language use.
Electronic and structural properties of single-crystal Jahn–Teller active Co1+x
Mn2−x
O4 thin films
Authors: Blanchet Miles D , Heath Jonathan J , Kaspar Tiffany C , Matthews Bethany E , Spurgeon Steven R , Bowden Mark E , Heald Steve M , Issacs-Smith Tamara , Kuroda Marcelo A , Comes Ryan B 
Published: December 2020

Abstract
Recent investigations on spinel CoMn2O4 have shown its potential for applications in water splitting and fuel cell technologies as it exhibits strong catalytic behavior through oxygen reduction reactivity. To further understand this material, we report for the first time the synthesis of single-crystalline Co1+x
Mn2−x
O4 thin films using molecular beam epitaxy. By varying sample composition, we establish links between cation stoichiometry and material properties using in-situ x-ray photoelectron spectroscopy, x-ray diffraction, scanning transmission electron microscopy, x-ray absorption spectroscopy, and spectroscopic ellipsometry. Our results indicate that excess Co ions occupy tetrahedral interstitial sites at lower excess Co stoichiometries, and become substitutional for octahedrally-coordinated Mn at higher Co levels. We compare these results with density functional theory models of stoichiometric CoMn2O4 to understand how the Jahn–Teller distortion and hybridization in Mn–O bonds impact the ability to hole dope the material with excess Co. The findings provide important insights into CoMn2O4 and related spinel oxides that are promising candidates for inexpensive oxygen reduction reaction catalysts.
New barrier layer design for the fabrication of gallium nitride-metal-insulator-semiconductor-high electron mobility transistor normally-off transistor
Authors: Cozette Flavien , Hassan Bilal , Rodriguez Christophe , Frayssinet Eric , Comyn Rémi , Lecourt François , Defrance Nicolas , Labat Nathalie , Boone François , Soltani Ali , Jaouad Abdelatif , Cordier Yvon , Maher Hassan 
Published: December 2020

Abstract
This paper reports on the fabrication of an enhancement-mode AlGaN/GaN metal-insulator-semiconductor-high electron mobility transistor with a new barrier epi-layer design based on double Al0.2Ga0.8N barrier layers separated by a thin GaN layer. Normally-off transistors are achieved with good performances by using digital etching (DE) process for the gate recess. The gate insulator is deposited using two technics: plasma enhance chemical vapour deposition (sample A) and atomic layer deposition (sample B). Indeed, the two devices present a threshold voltage (V
th) of +0.4 V and +0.9 V respectively with ΔV
th about 0.1 V and 0.05 V extracted from the hysteresis gate capacitance measurement, a gate leakage current below 2 × 10−10 A mm−1, an I
ON/I
OFF about 108 and a breakdown voltage of V
BR = 150 V and 200 V respectively with 1.5 µm thick buffer layer. All these results are indicating a good barrier surface quality after the gate recess. The DE mechanism is based on chemical dissolution of oxides formed during the first step of DE. Consequently, the process is relatively soft with very low induced physical damages at the barrier layer surface.
Self-powered circularly polarized light detector based on asymmetric chiral metamaterials
Authors: Yin Zhihua , Hu Xuemeng , Zeng Jianping , Zeng Yun , Peng Wei 
Published: December 2020

Abstract
Circularly polarized light (CPL) has been given great attention because of its extensive application. While several devices for CPL detection have been studied, their performance is affected by the magnitude of photocurrent. In this paper, a self-powered photodetector based on hot electrons in chiral metamaterials is proposed and optimized. CPL can be distinguished by the direction of photocurrent without external bias owing to the interdigital electrodes with asymmetric chiral metamaterials. Distinguished by the direction of photocurrent, the device can easily detect the rotation direction of the CPL electric field, even if it only has a very weak responsivity. The responsivity of the proposed detector is near 1.9 mA/W at the wavelength of 1322 nm, which is enough to distinguish CPL. The detector we proposed has the potential for application in optical communication.
Effects of high temperature annealing and laser irradiation on activation rate of phosphorus
Authors: Li Shaojie , Han Peide 
Published: December 2020

Abstract
Thermal annealing and laser irradiation were used to study the activation rate of phosphorus in silicon after ion implantation. The activation rate refers to the ratio of activated impurity number to the total impurity number in the sample. After injecting phosphorus with the dose and energy (energy = 55 keV, dose = 3 × 1015 cm–2), the samples were annealed at different temperatures, and laser irradiation experiments were performed after annealing. The experimental results showed that the activation rate of phosphorus was the highest at 850 °C, and the highest activation rate was 67%. Upon femtosecond laser irradiation samples after thermal annealing, while keeping the crystalline silicon surface without damage, the activation rate was improved. When the energy-flux density of the femtosecond laser was 0.65 kJ/cm2, the activation rate was the highest, increasing from 67% to 74.81%.
RF performance evaluation of p-type NiO-pocket based β-Ga2O3/black phosphorous heterostructure MOSFET
Authors: Yadava Narendra , Mani Shivangi , Chauhan R. K. 
Published: December 2020

Abstract
The radio-frequency (RF) performance of the p-type NiO-pocket based β-Ga2O3/black phosphorous heterostructure MOSFET has been evaluated. The key figure of merits (FOMs) for device performance evaluation include the transconductance (g
m) gate dependent intrinsic-capacitances (C
gd and C
gs), cutoff frequency (f
T), gain bandwidth (GBW) product and output-conductance (g
d). Similarly, power-gain (G
p), power added efficiency (PAE), and output power (P
OUT) are also investigated for large-signal continuous-wave (CW) RF performance evaluation. The motive behind the study is to improve the β-Ga2O3 MOS device performance along with a reduction in power losses and device associated leakages. To show the applicability of the designed device in RF applications, its RF FOMs are analyzed. With the outline characteristics of the ultrathin black phosphorous layer below the β-Ga2O3 channel region, the proposed device results in 1.09 times improvement in f
T, with 0.7 times lower C
gs, and 3.27 dB improved G
P in comparison to the NiO-GO MOSFET. The results indicate that the designed NiO-GO/BP MOSFET has better RF performance with improved power gain and low leakages.
The removal of Pb2+ ion by MnFe2O4/waste tea leaves biochar and mechanism of adsorption
Authors: Suwunwong Thitipone , Danwittayakul Patsara , Thanomsilp Chuleeporn , Siriwat Piyanuch , Chantrapromma Suchada , Phoungthong Khamphe 
Published: December 2020

Abstract
In order to transform waste tea leaves into a useful/valuable material for removal of Pb2+ ions from wastewater, MnFe2O4/biochar was synthesized. The tea waste was pyrolyzed at 500 °C to obtain the biochar. Effects of the composition of tea leaves on the physicochemical properties of biochar were evaluated. Biochar and MnFe2O4/biochar were mainly organic matter. Regarding inorganic components, aside from Fe and Mn there were considerable albeit small amounts of the mineral elements K and Ca in the MnFe2O4/biochar. The MnFe2O4/biochar is porous with a specific surface area of 24.38 m2 g−1, and the surface is loaded with MnFe2O4 and amorphous MnO2 particles. Also carboxylic acid, hydroxyl, and carbonyl functional groups were formed on the MnFe2O4/biochar surfaces. The surface area and pore volume characteristics of the MnFe2O4/biochar were also increased compared with the baseline biochar, and the prepared MnFe2O4/biochar had mesostructure. The modification of biochar into MnFe2O4/biochar improved adsorption of Pb2+ ions with the removal increased to ∼98%. The Freundlich isotherm and the pseudo-second order kinetic models matched well Pb2+ adsorption onto the MnFe2O4/biochar.
Effects of CuSn33 content on the microstructure and mechanical properties of Al/Cu bimetallic foams
Authors: Feng Qiang , Ma Shengshou , Liao Changzhong , Xie Yuhuan , Duan Zhiwei 
Published: December 2020

Abstract
A new type of Al/Cu bimetallic foams with double grade plateau stresses was prepared by employing powder metallurgy sintering method. The addition of CuSn33 is to improve the microstructure and mechanical properties of Al/Cu bimetallic foams. The effects of CuSn33 content on the phase components, lattice parameter, crystallize size and microstrain of Cu-matrix were investigated with utilizing Rietveld method. Results show that there is a linera relationship between CuSn33 content and lattice parameter, and the linear fitting equation was also simulated. The addition of CuSn33 can refine the crystallite and increase the microstrain when the Sn with larger atomic radius dissolves into Cu-matrix alloy. However, the microstrain value drops dramatically when the precipitated δ-phase appears from the supersaturated solute elements. Segregation caused by the residual Sn in the Cu-matrix primarily appears near to the border of Al2Cu and Cu-matrix. The compressive stress-strain curves of Al/Cu bimetallic foams with 5 typical stages are radically different from the single component metal foams, including twice quasi-linear regions, twice collapse plateaus, and the densification region. The effects of CuSn33 content on the elastic modulus of Al/Cu bimetallic foams, microhardness of Cu-matrix and the absorbed energy density have also been investigated.
Biofabrication of silver nanoparticles using Ostericum koreanum plant extract for treatment of allergic rhinitis in nursing care
Authors: Xiaoshang Gao , Murakonda Gopi Krishna , Mu Yingmei 
Published: December 2020

Abstract
In this work, the biofabrication of silver nanoparticles (Ag NPs) was carried out using leaf extract of Ostericum koreanum. The formation of crystalline Ag NPs was studied by using X-ray diffraction and UV–visible spectroscopy. HRTEM analysis confirmed the formation of spherical shaped Ag NPs with a mean size of 20 to 25 nm. FTIR spectroscopy confirmed the capping of Ag NPs with Ostericum koreanum extract polyphenols. On the other hand, Ag NPs were noticed to inhibit mRNA expressions and productions of inflammatory cytokines such as interleukin IL-6, (IL)-1β as well as tumor necrosis factor-α on phorbol 12-myristate 13-acetate plus A23187 (PMACI) stimulated human mast cell lines (HMC-1 cells). Ag NPs abolished the nuclear factor-κB and caspase-1 activations in HMC-1 cells, and decreased the expressions of IκB kinaseβ (IKKβ) and receptor interacting protein2 (RIP2). Additionally, Ag NPs increased the expression of IKKβ and RIP2 alone in regular condition. Ag NPs also inhibited the phosphorylation of protein kinase regulated by extracellular signal and anti-dinitrophenyl IgE-activated passive cutaneous anaphylaxis. The results of this work revealed that the biofabricated Ag NPs successfully enhanced the allergic inflammatory reaction of the mast cell implying their use for potential treatment of allergic diseases mediated by mast cell.