bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ansiedad en tiempos de aislamiento social por COVID-19. Chota, Perú - 2020
Authors: Oblitas Gonzales Anibal , Sempertegui Sánchez Nancy 
Published: June 2021

Objetivo: Identificar el nivel de ansiedad según características sociodemográficas de los adultos en aislamiento social obligatorio por COVID-19 en un barrio de una ciudad de Perú.Materiales y métodos: Estudio descriptivo de corte transversal, desarrollado durante una parte del periodo que el aislamiento social obligatorio en el Perú (marzo - junio). El instrumento fue entregado a domicilio, y recogido ya sea en el domicilio o enviado al correo electrónico del investigador entre en 7° y 12º día de aislamiento. Con una población de 142 adultos y una muestra de 67. Se identificó los niveles de ansiedad mediante la Escala de Autoevaluación de la Ansiedad de Zung (1971), y un cuestionario con nueve variables sociodemográficas.Resultados: La ansiedad alcanzó al 43.3% de participantes, 20.9% presentan ansiedad leve, 13.4% moderada, y 9.0% severa. El nivel de ansiedad según variables sociodemográficas fue más frecuente en el sexo femenino, en personas de 40 a más años, casados/convivientes y divorciados/separados, en los que llevan entre 10 a 12 días de aislamiento, cuando se está en compañía de alguien, cuando hay afectación económica o cuando no realizan actividades distractoras.Conclusión: Los niveles de ansiedad durante una pandemia pueden llegar a reducirse cuando; la duración del aislamiento es el más corto posible, la persona recibe información precisa, se informa de medios de comunicación confiables, cuenta con el suministro suficiente para disminuir la frecuencia de salidas, tiene una situación financiera estable, realiza actividades lúdico/recreativas, y cuando mejora la comunicación (física o virtual).
Representações sociais sobre a enfermagem durante a pandemia da covid-19
Authors: Góis Amanda Regina da Silva , Barbosa Paulo Filipe Cândido 
Published: June 2021

Objetivo: apreender as representações sociais elaboradas nos portais jornalísticos sobre a enfermagem durante a pandemia da covid-19.
Síntese de conteúdo: estudo documental e descritivo-exploratório fundamentado na teoria dasrepresentações sociais. Coletaram-se notícias de portais jornalísticos mais acessados no Brasil vinculados à mídia impressa, publicadas entre 26 de fevereiro e 12 de maio de 2020. Analisaram-se os dados por meio do software Analyses Multidimensionnelles de Textes et de Questionaires, o Iramuteq, versão 0.7 alpha 2. A análise das notícias revelou conteúdos representacionais sobre os profissionais de enfermagem como aqueles que cuidam de pessoas, que precisam de proteção para continuar cuidando e que são a maior força de trabalho nos sistemas de saúde.
Conclusão: o fenômeno do novo coronavírus tem permitido a transformação dos conteúdos representacionais e a ressignificação de imagens identitárias sobre quem são os profissionais de enfermagem e sua importância para a saúde.
Ideological and political horizon shifts in Transylvanian Hungarian poetry during the communist period and after the 1989 Regime Change
Authors: Szilveszter László Szilárd 
Published: June 2021

AbstractAlthough the communist regime, in literature as well as in all areas of social life, aimed at uniformity and creating an “art” serving propaganda purposes in the entire Central and Eastern European region, the Romanian Stalinist “cultural project” differed in many respects from that of other countries, e.g. Hungary's. In this era, the discourse emphasizing revolutionary transformation and radical policy change decisively builds on the image of the enemy; and the fault-lines between past and present, old and new, and the idea of the need for continuous political struggle also prevail in both poetry and prose as eternal actualities.For the Transylvanian Hungarian community, the 1989 Regime Change was supposed to mean the end of nationalist dictatorship, of the infinitely intensified ideological/political terror, of the deliberate policy of ethnic homogenization, and the solution of minority issues as well as of internal and external conflicts. Nevertheless, after a few months of cloudless enthusiasm, in 1990, Transylvanian Hungarians had to face the rearrangement of previous power structures; they confronted national and ethnic conflicts, disguised assimilation, and economic vulnerability. This paper aims to present the ideological/political characteristics which determined Transylvanian Hungarian poetry during the Communist Dictatorship and after the 1989 Regime Change.
Aktivitas Antibakteri Membran Nanokomposit Kitosan/Nanopartikel Perak
Authors: Notriawan Doni , Nesbah Nesbah , Ernis Gustria , Fadhila Muhammad Adeng , Wibowo Risky Hadi , Pertiwi Reza , Ilfanisari Vinolla 
Published: June 2021

The aim of this study was to make and test the antibacterial activity of chitosan/silver nanoparticles nanocomposite membranes. Nanocomposite membranes were synthesized by chitosan with pluronic using acetic acid as a solvent. Silver nanoparticles were synthesized using the green synthesis method and the makasar fruit (Brucea javanica L. Merr) peel extract as a bioreductor. The silver nanoparticles were composited with a chitosan/pluronic mixture and printed on a glass plate. Nanocomposite membranes were characterized using the FTIR spectrophotometer and the scanning electron microscope (SEM). Nanocomposite membrane were tested for antibacterial activity against Escherechia coli. The UV-Vis spectra showed the formation of silver nanoparticles which were indicated by the absorption at 454 nm and the absorbance value of 0.405. Characterization using FTIR showed no new functional groups formed in the composites of chitosan and pluronic. SEM results showed the difference between the chitosan membrane and the nanocomposite membrane. The surface of nanocomposite membrane showed uneven compared to the chitosan membrane. Nanocomposite membranes have antibacterial activity to inhibit E. coli growth. Keywords: nanocomposite, chitosan/silver nanoparticles, antibacterial Penelitian ini bertujuan untuk membuat dan menguji aktivitas antibakteri membran nanokomposit kitosan/nanopartikel perak. Membran nanokomposit dibuat dengan mensintesis kitosan dengan pluronik menggunakan pelarut asam asetat. Nanopartikel perak disintesis menggunakan metode green synthesis dengan ekstrak kulit buah makasar (Brucea javanica L. Merr) sebagai bioreduktor. Nanopartikel perak dikompositkan dengan campuran kitosan/pluronik dan dicetak di atas plat kaca. Membran nanokomposit dikarakterisasi menggunakan spektrofotometer FTIR dan scanning electron microscope (SEM). Membran nanokomposit dilakukan uji aktivitas antibakteri terhadap Escherechia coli. Spektra UV-Vis menunjukkan terbentuknya nanopartikel perak yang ditandai adanya serapan pada panjang gelombang 454 nm dan absorbansi 0,405. Karakterisasi dengan FTIR menunjukkan tidak adanya gugus fungsi baru yang terbentuk pada komposit dari kitosan dan pluronik. Hasil SEM menunjukkan adanya perbedaan antara membran kitosan dengan membran nanokomposit. Permukaan membran nanokomposit terlihat tidak rata dibandingkan membran kitosan. Membran nanokomposit memiliki aktivitas bakteri sehingga dapat mengambat pertumbuhan bakteri E. coli. Kata kunci: nanokomposit, kitosan/nanopartikel perak, antibakteri
Riesgos psicosociales intralaborales en docentes de una universidad pública de Tabasco
Authors: Pérez Alcázar Diana Isabel , Vicente Ruiz María Asunción , De la Cruz  García Carmen , Fuentes Álvarez María Trinidad 
Published: June 2021

Introducción. El docente universitario de tiempo completo asume nuevas funciones como investigador, tutor, gestor, además de impartir docencia en pregrado y posgrado, en base a competencias, afronta cambios en los enfoques pedagógicos, tecnológicos y metodológicos. Las transformaciones que están ocurriendo, afectan las relaciones personales y las condiciones salariales, respaldadas por continuas evaluaciones, que ejercen influencia sobre las condiciones de trabajo, el bienestar psicológico y la salud física de los docentes del área de salud. Objetivo. Determinar los factores de riesgo psicosociales intralaborales en docentes de Educación Superior de Ciencias de la Salud. Método. Enfoque cuantitativo, diseño no experimental, observacional, de tipo de estudio descriptivo, transversal, muestra conformada por 42 docentes de la División Académica de Ciencias de la Salud de una universidad pública de Tabasco, México. Se utilizó el instrumento de factores de riesgo psicosociales intralaborales. Resultados. Los dominios y dimensiones intralaborales más afectados con riesgo psicosocial muy alto fueron: control sobre el trabajo, 57.1 % (n= 24), la dimensión participación y manejo del cambio 42.9% (n= 18). Liderazgo y relaciones sociales en el trabajo 45.2% (n=19), características del liderazgo 38.1% (n= 16). Recompensa 38.1% (n=16), reconocimiento y compensación 40.5% (n= 17) y Demandas del trabajo 28.6% (n= 12), demandas ambientales y de esfuerzo físico 50.0% (n=21). Conclusión. Los docentes universitarios del área de salud presentan riesgo psicosocial alto debido a factores intralaborales, liderazgo y relaciones sociales en el trabajo institucional, que repercute en la toma de decisiones, relacionada con las normas de las actividades académicas, la cantidad y el ritmo de trabajo, aunado a la falta de intervención en procesos de cambios en la institución que afecta la salud mental y el desempeño laboral. Son necesarias futuras intervenciones para disminuir los factores de riesgo psicosociales como el estrés, mejorar el ambiente laboral y la calidad de vida de los docentes.

Palabras Claves: Factores de Riesgo, Psicosocial, Intralaboral, Docentes.
Are Patients Equally Satisfied with Advanced Practice Providers Compared with Surgeons in a Pediatric Fracture Clinic?
Authors: Ho Christine A. 
Published: June 2021

Purpose:
The purpose of this study was to evaluate whether patient satisfaction, as measured by the National Research Corporation Connect Scorecard, was equivalent for advanced practice providers (APPs) and pediatric orthopaedic fellowship–trained surgeons (MDs).

Methods:
Scorecard results from both APP and MD fracture clinics were compiled from August 2015 to August 2017. APPs (n = 12) had 17,402 independent fracture clinic visits with 4,243 scorecards completed; MDs (n = 10) had 11,623 fracture clinic visits with 2,282 scorecards completed. Scores were compared using the t test.

Results:
APPs had higher mean patient satisfaction scores in every category when compared with MDs. Statistically significantly higher APP scores were seen for “Provider spent enough time with patient” (85.4 vs. 80.7, p = 0.032), “Provider showed respect for what patient said” (96.0 vs. 93.4, p = 0.020), and “Provider Communication Composite” (92.1 vs. 89.4, p = 0.022). APPs with > 6 years of pediatric orthopaedic experience had higher scores in every category when compared with APPs with < 6 years of experience. Statistically significantly higher scores were seen for experienced APPs compared with less experienced APPs for “Provider explained things understandably” (p = 0.019), “Provider listened carefully” (p = 0.025), “Provider knew medical history” (p = 0.023), and “Provider Communication Composite” (p = 0.019).

Conclusions:
Patients are equally satisfied with pediatric orthopaedic APPs when compared with pediatric orthopaedic surgeons for their child's fracture care; in fact, APPs may have higher communication skills compared with physicians. With the increasing shift in pediatric fracture care from the general orthopaedist to the pediatric orthopaedists' office, APPs can treat pediatric fractures without a decrease in patient satisfaction.
Theoretical analysis on stress distribution characteristics around a shallow buried spherical
Karst cave containing fill materials in limestone strata
Authors: Xie Peng , Ma Shaokun , Wen Haijia , Li Liangyong 
Published: June 2021

Abstract
The prime objective of the article is to present the spatial characteristics of stress distribution around a shallowly buried spherical Karst cave containing fill materials in limestone strata. Firstly, considering the external load effects, stress field in the Earth’s crust, internal filling, and the Karst landform characteristics in China, a spatial axial-symmetrical model was established. Concurrently, combining available work and the concept of elasticity, the boundary conditions were determined. Subsequently, Love displacement method was introduced, in addition to the expressions of stress components were gained. The diagram characteristics of each stress component were summarized, which are affected by various influencing factors. Finally, in order to prove the rationality of the general solution, a comparison between numerical simulation result and theoretical calculation result was carried out, as well as the maximum error between theoretical calculation value and numerical simulation value is less than 5%. Thus, the analytical solution could represent the spatial characteristics of stress distribution around a shallowly buried spherical Karst cave containing fill materials in limestone strata.
Study on the Uptake of Aqueous Zinc Ion Onto a Novel Organic Acid Modified Biosorbent
Authors: Aniagor Chukwunonso O. , Hussein D. M. , Farag S. , Hashem Ali 
Published: June 2021

Abstract
Alhagi Graecorum (AG) is an invasive plant with a massive/robust root structure that can grow up to 12 feet into the ground. The present study exploited the rich cellulosic content in this ‘AG’ root for the synthesis of a novel biosorbent (‘MA’). This low-cost biosorbent, with high carboxyl content of 447.22 (m. eq /100 g sample) was utilised for aqueous zinc ion sequestration. The surface functional groups and textural characteristics required for an efficient heavy metal binding was identified on ‘MA’ using Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). Sip isotherm emerged as the model of best fit for equilibrium studies, hence, Zn (II) ion sorption onto ‘MA’ is believed to occur via a hybrid blend of homogenous monolayer and heterogeneous multilayer adsorption. Meanwhile, the Elovich (SNE = 1.0429), intraparticle diffusion (SNE = 1.0205) and pseudo-first-order (SNE = 1.0455) provided the best fitting for 200, 400 and 600 mg/L adsorption system, respectively. The maximum adsorption capacity of 188.67 mg/g was recorded at optimum adsorption conditions, with the predominance of the electrostatic and electron-donor-acceptor interaction mechanism. The abundant surface oxygenous functional groups on ‘MA’ positively influenced its adsorption capacity; thus, making it a promising biosorbent for aqueous Zn (II) uptake.
Improving Checklists of Alien Plants with Digitised Herbarium Collections: The Example of D.R. Congo (Africa)
Authors: Bordbar Farzaneh , Meerts Pierre 
Published: June 2021

Abstract
The Democratic Republic of the Congo (D.R. Congo) represents a striking gap of knowledge on alien plant species. In this paper, we use digitised herbarium collections to assemble a checklist of alien plant species in D.R. Congo and to examine patterns in the alien flora. The new checklist comprises 426 alien species i.e., 182 (42.5%) casuals, 244 (57.5%) naturalised of which 80 (19% of aliens) are invasive. Discrepancies with previous databases are discussed. For many species in previous databases, we failed to find evidence for occurrence outside cultivation. A total of 158 taxa were not included in previous lists, 44 of which are new to D.R. Congo. Considering the size of the country and its rich native flora, the alien flora of D.R. Congo does not appear to be species rich. The alien flora is particularly rich in Fabaceae (15%) and in annual species (36%). America is by far the most important source continent (65%) and the proportion of annuals of American origin is particularly large among the most widespread species. Invasive success is discussed in terms of residence time. The very low number of new species records after 1960 is most likely accounted for by decreasing sampling effort. The results illustrate how herbarium collections can be used to critically revise existing checklists of alien species in tropical Africa. Field work is urgently needed to improve coverage of recent introductions and to monitor the status of alien species, especially in protected areas and around botanic gardens.
New Volvovirus Isolate From Domesticated House Cricket, Acheta Domesticus (Orthoptera: Gryllidae)
Authors: Homchan Somjit , Gupta Yash Munnalal 
Published: June 2021

Abstract
BackgroundDNA viruses have a broad variety of genetic material. Most viral DNA experiments focused on those with recognized pathogenic characteristics. Herein, we employed hybrid approach to systematically identify viral DNA from the Acheta domesticus genome and also curated primer library to reconfirm the infection of Acheta domesticus volvovirus (AdVVV) from A. domesticus samples obtained from breeding facility in Thailand. Methods and ResultsThe AdVVV nucleotide sequence was anchored and examined from genome sequence of A. domesticus. Subsequently, we sequenced the overlapping amplified DNA to assemble the whole genome of AdVVV isolate. The genome sequence began with the putative nonanucleotide origin of replication (1-TAGTATTAC), and had four open reading frames. The circular nature of AdVVV was confirmed as typical stemloop assembled by complementary initial and ending nucleotides sequences. The newly discovered volvovirus isolates from Thailand is also highly homologous (97.34 -98.77 %) with previously identified volvovirus sequences and having identical gene organization. This correlation is particularly surprising considering that the identified volvovirus considerably mutated compared to previously discovered volvovirus isolates. ConclusionsThis research appears to be the first to find volvovirus isolates from Thailand with an alternative approach to identify viral isolates. These results widen our knowledge on rapidly evolving volvovirus, and provide insights for better identification and the phylogenetic analysis based on different segments of viral genome. Also, the alternative method used in the present study will aid in the detection of DNA viruses and the assembly of their genomes.
Study of Micro-porosity in Electron Beam Butt Welding
Authors: Das Debasish , Dinda Soumitra , Das Amit Kumar , Pratihar Dilip Kumar , Roy Gour G 
Published: June 2021

Abstract
As complete elimination of porosity from the weld is very difficult, the next option available is to minimize this weld porosity, which is crucial for the safe performance of the welded components. However, this investigation through experiments alone is very tedious and time consuming. Additionally, very limited models are available in the literature for accurate prediction of different porosity attributes. The present study, thus, addressees both the experimental as well as modelling aspect on the study of micro-porosity during Electron Beam Welding (EBW) of SS304 plates. Welding parameters are reported to have significant influence on the micro-porosity. Hence, the influences of these parameters on micro-porosity attributes, namely pores number, average diameter, and sphericity are extensively studied experimentally employing optical microscopy (OM), scanning electron microscopy (SEM), X-ray computed tomography (XCT), and Raman spectroscopy. This is followed by an elaborate modelling through seven popular and well-recognized Machine Learning Algorithms (MLAs) namely, Multi-Layer Perceptron (MLP), Support Vector Regression (SVR), M5P model trees regression, Reduced Error Pruning Tree (REPTree), Random Forest (RF), Instance-based k-nearest neighbor algorithm (IBk) and Locally Weighted Learning (LWL). These different techniques enhance the chance of obtaining the better predictions of the said micro-porosity attributes by overcoming the effect of data-dependence and other limitations of individual MLAs. The different model-predicted micro-porosity data are also validated through experimental data. Statistical tests and Monte-Carlo reliability analysis are additionally utilized to evaluate the performances of the employed algorithms. IBk and MLP are overall found to perform well.
Pb-0.6%Sb/α-PbO2/β-PbO2-MnO2 Electrode Electrodeposited In Methanesulfonic Acid With Application To The Electrocatalytic Degradation of AYR Wastewater
Authors: Yu Bohao , Zhan Zhenyu , Yang Yunbo , Xu Ruidong , Wang Xuanbing 
Published: June 2021

Abstract
In the present work, a novel Pb-0.6%Sb/α-PbO2/β-PbO2-MnO2 composite electrode with high electrocatalytic activity was obtained by electrodeposition in methanesulfonic acid and further investigated in the electrochemical degradation of alizarin yellow R(AYR) wastewater. The selection of temperature ranges was found to cause a quantitative difference in the formation of α/β-PbO2 phases. In this way, both phases were simultaneously electrodeposited in the same methanesulfonic acid, and electrodes with corresponding proportions of phases were fabricated. Furthermore, performance tests indicated that composite electrodes with the most appropriate corresponding proportions of phases co-deposited with proper amount of MnO2 could obviously improve the COD removal efficiency and degradation efficiency of AYR to 78.1% and 80.3%. They also showed commendable recyclability and fine economic applicability. Ultimately, the paper proposed a proper electrocatalytic degradation pathway of AYR based on the identification of the major intermediate products. The results proved that MnO2-co-doped composite electrodes had more promising application potential in the electrocatalytic degradation of AYR wastewater.
Analysis of Exposure To Radon in Bulgarian Rehabilitation Hospitals
Authors: Ivanova Kremena Georgieva , Djuvnakova Desislava , Stojanovska Zdenka , Djounova Jana , Kunovska Bistra , Chobanova Nina 
Published: June 2021

Abstract
Mineral springs are used in spa resorts throughout the world. Radon is a natural radioactive source, which can dissolve, accumulate, and be transported by water. This study investigates the radon concentration in air and water in 12 Bulgarian rehabilitation hospitals and presents the assessment of the exposure to radon in them. The measurements were performed at 401 premises within 21 buildings, using two types of passive detectors for a dry and wet environment that were exposed from February, 2019 to June, 2019. The radon concentration varied from 19 to 2550 Bq/m3 with an arithmetic mean and a standard deviation of 102 Bq/m3 and 191 Bq/m3, respectively. The hypothesis that in hospitals the source of radon, besides soil under the buildings, is also the mineral water that is used for treatment, was tested. Thermal water samples were procured sequentially from a spring and baths to analyse the reduction of radon concentration in them till reaching the premises. The results show that the concentration of radon decreased by approximately 50%. Further, the correlation analysis applied to the data proved the relation of the levels of indoor radon in the treatment rooms with those in the water. Mineral water used in rehabilitation hospitals have radon transfer coefficients ranging from 4.5·10− 4 to 8.4·10− 3. In addition, an analysis of the exposure of patients and workers to radon in rehabilitation hospitals based on the indoor radon levels and period of exposure was performed.