bluuebunny/crossref_metadata_2025_split huggingface dataset:
Enhancing Electrocatalytic N2 Conversion to NH3 by MnO2 Ultralong Nanowires with Oxygen Vacancies
Authors: Wang Guangbin , Zhao Renna , Ma Fahao , Wang Zeyan , Wang Peng , Liu Yuanyuan , Cheng Hefeng , Dai Ying , Zheng Zhaoke , Huang Baibiao 
Published: April 2021

Background:
At present, industrial synthesis of NH3 mainly relies on the Haber-Bosch
process, which is characterized by harsh reaction conditions and high energy consumption. Electrochemical
nitrogen reduction is considered to be a mild and sustainable alternative method for producing
NH3, but efficient electrocatalyst under ambient conditions is the prerequisite for NH3 production.

Objective:
To demonstrate that CP@MnO2 ultralong nanowires are a highly-efficient electrocatalyst
for N2 reduction reaction (NRR) under ambient conditions.

Methods:
The α-phase MnO2 synthesized by one-step hydrothermal method has an ultralong nanowires
structure and oxygen vacancy defects. The catalysts were characterized by XRD, TEM, XPS,
etc. The produced NH3 was estimated by indophenol blue method by UV-vis absorption spectra.

Results:
Such catalyst attains high Faradaic efficiency (FE) of 8.8% and a large NH3 yield of
1.13×10−10 mol cm−2 s−1 at −0.7 V versus reversible hydrogen electrode in 0.1 M Na2SO4. In addition,
the catalyst also shows high electrochemical stability and selectivity for NH3 formation.

Conclusion:
MnO2 ultralong nanowires can expose higher density of active sites and the spontaneously
formed oxygen vacancies can manipulate the electronic structure of manganese oxides and provide
coordination unsaturation sites (CUS) to enhance the adsorption of N2, which is the main reason for
the high activity of the catalyst.
Atuação de egressos(as) das licenciaturas em Educação do Campo
Authors: Molina Mônica Castagna , Pereira Marcelo Fabiano Rodrigues 
Published: April 2021

RESUMO
Este texto almeja refletir sobre a práxis de egressos da Licenciatura em Educação do Campo, objetivando perceber como esta foi abordada na produção do conhecimento científico na pós-graduação. Procedeu-se à análise de 25 pesquisas (teses e dissertações), buscando examinar os resultados em relação aos três perfis de formação pretendidos pelo curso: a) inserção e atuação dos egressos nas Escolas do Campo e os desafios da docência por área de conhecimento; b) inserção e atuação dos egressos em seus territórios, na gestão de processos educativos comunitários e c) tensões e contradições que envolvem seu ingresso/permanência no mundo do trabalho. As pesquisas analisadas reafirmam que o Projeto Político Pedagógico das LEdoCs, dada a sua materialidade de origem, vinculada à luta da classe trabalhadora, tem conseguido garantir um novo perfil de educadores às Escolas do Campo, porém a continuidade de tal projeto de formação enfrenta ameaças em diferentes ordens.
Palavras-chave: Licenciatura em Educação do Campo. Egressos. Trabalho. Escolas do Campo. Práxis.
Influence Mechanism of the Affordances of Chronic Disease Management Apps on Continuance Intention: Questionnaire Study
Authors: Liu Yongmei , Jiang Fei , Lin Peiyang 
Published: April 2021

Background
Mobile health apps are becoming increasingly popular, and they provide opportunities for effective health management. Existing chronic disease management (CDM) apps cannot meet users’ practical and urgent needs, and user adhesion is poor. Few studies, however, have investigated the factors that influence the continuance intention of CDM app users.

Objective
Starting from the affordances of CDM apps, this study aimed to analyze how such apps can influence continuance intention through the role of health empowerment.

Methods
Adopting a stimulus-organism-response framework, an antecedent model was established for continuance intention from the perspective of perceived affordances, uses and gratifications theory, and health empowerment. Perceived affordances were used as the “stimulus,” users’ gratifications and health empowerment were used as the “organism,” and continuance intention was used as the “response.” Data were collected online through a well-known questionnaire survey platform in China, and 323 valid questionnaires were obtained. The theoretical model was tested using structural equation modeling.

Results
Perceived connection affordances were found to have significant positive effects on social interactivity gratification (t717=6.201, P<.001) and informativeness gratification (t717=5.068, P<.001). Perceived utilitarian affordances had significant positive effects on informativeness gratification (t717=7.029, P<.001), technology gratification (t717=8.404, P<.001), and function gratification (t717=9.812, P<.001). Perceived hedonic affordances had significant positive effects on function gratification (t717=5.305, P<.001) and enjoyment gratification (t717=13.768, P<.001). Five gratifications (t717=2.767, P=.005; t717=4.632, P<.001; t717=7.608, P<.001; t717=2.496, P=.012; t717=5.088, P<.001) had significant positive effects on health empowerment. Social interactivity gratification, informativeness gratification, and function gratification had significant positive effects on continuance intention. Technology gratification and enjoyment gratification did not have a significant effect on continuance intention. Health empowerment had a significant positive effect on continuance intention. Health empowerment and gratifications play mediating roles in the influence of affordances on continuance intention.

Conclusions
Health empowerment and gratifications of users’ needs are effective ways to promote continuance intention. The gratifications of users’ needs can realize health empowerment and then inspire continuance intention. Affordances are key antecedents that affect gratifications of users’ needs, health empowerment, and continuance intention.
Impact of Face-to-Face Teaching in Addition to Electronic Learning on Personal Protective Equipment Doffing Proficiency in Student Paramedics: Protocol for a Randomized Controlled Trial
Authors: Stuby Loric , Currat Ludivine , Gartner Birgit , Mayoraz Mathieu , Harbarth Stephan , Suppan Laurent , Suppan Mélanie 
Published: April 2021

Background
The COVID-19 pandemic has brought attention to the importance of correctly using personal protective equipment (PPE). Doffing is a critical phase that increases the risk of contamination of health care workers. Although a gamified electronic learning (e-learning) module has been shown to increase the adequate choice of PPE among prehospital personnel, it failed to enhance knowledge regarding donning and doffing sequences. Adding other training modalities such as face-to-face training to these e-learning tools is therefore necessary to increase prehospital staff proficiency and thus help reduce the risk of contamination.

Objective
The aim of this study is to assess the impact of the Peyton 4-step approach in addition to a gamified e-learning module for teaching the PPE doffing sequence to first-year paramedic students.

Methods
Participants will first follow a gamified e-learning module before being randomized into one of two groups. In the control group, participants will be asked to perform a PPE doffing sequence, which will be video-recorded to allow for subsequent assessment. In the experimental group, participants will first undergo face-to-face training performed by third-year students using the Peyton 4-step approach before performing the doffing sequence themselves, which will also be video-recorded. All participants will then be asked to reconstruct the doffing sequence on an online platform. The recorded sequences will be assessed independently by two investigators: a prehospital emergency medicine expert and an infection prevention and control specialist. The assessors will be blinded to group allocation. Four to eight weeks after this first intervention, all participants will be asked to record the doffing sequence once again for a subsequent skill retention assessment and to reconstruct the sequence on the same online platform to assess knowledge retention. Finally, participants belonging to the control group will follow face-to-face training.

Results
The study protocol has been presented to the regional ethics committee (Req-2020-01340), which issued a declaration of no objection as such projects do not fall within the scope of the Swiss federal law on human research. Study sessions were performed in January and February 2021 in Geneva, and will be performed in April and June 2021 in Bern.

Conclusions
This study should help to determine whether face-to-face training using the Peyton 4-step approach improves the application and knowledge retention of a complex procedure when combined with an e-learning module.

International Registered Report Identifier (IRRID)
PRR1-10.2196/26927
GESTÃO DEMOCRÁTICA DA EDUCAÇÃO SOB OS OLHOS E CORPOS DE JOVENS INTERNADOS PERANTE A LEI
Authors: Cardoso Junior Washington Luis de Andrade , Cunha Maria Couto 
Published: April 2021

Este artigo é parte do resultado de uma dissertação de mestrado que estudou a gestão democrática e o direito à educação em escolas públicas inseridas em Unidades de Internação, pesquisa desenvolvida em um programa de Pós-Graduação em Educação. A investigação partiu de uma inspiração marxista, tendo como referenciais teóricos os conceitos de hegemonia de Gramsci (1968), de Aparelhos Ideológicos do Estado, de Althusser (1985) e a docilidade dos corpos, de Foucault (1999). Seu objetivo foi, além de um estudo sobre a legislação que normatiza a oferta de educação escolar para a população jovem submetida a medidas restritivas de liberdade, analisar as percepções dos sujeitos inseridos em duas escolas vinculadas a um sistema municipal de ensino e dos demais profissionais das unidades de internação (gerentes, professores, educadores sociais, alunos) localizadas em Comunidades de Atendimento Socioeducativo de Internação (CASE), sobre os limites e possibilidades da Gestão Democrática nessa realidade educacional singular. O presente texto faz um recorte dos resultados da pesquisa de campo realizada sobre tais percepções. Os resultados apontam as dificuldades encontradas nas duas escolas pesquisadas de se exercitar a gestão democrática nos moldes como este princípio é colocado na legislação educacional vigente e na literatura pertinente desse campo do conhecimento, mesmo que alguns depoimentos dos colaboradores da pesquisa mostrassem possibilidades da efetivação de alguns indicadores dessa modalidade de gestão.
Claves en la construcción del conocimiento de la educación inclusiva
Authors: González Aldo Ocampo 
Published: April 2021

la teoría de la educación inclusiva al explicitar una naturaleza abierta exige pensar acerca de lo que esta hace en el mudo y cómo resuelve determinados problemas, intentando visualizar sobre qué otras cosas articula su trabajo. La educación inclusiva al no pertenecer con exactitud a la regionalización significada como educación especial, reafirma que sus contornos definitorios han sido establecidos mediante un conjunto de equívocos de aproximación al propio término. El objetivo de este trabajo es analizar algunas de sus premisas heurísticas para comprender sus mecanismos de producción del conocimiento. El método empleado es el de revisión documental crítica. Entre sus principales conclusiones el trabajo identifica que la estructura de conocimiento de lo que denominamos educación inclusiva queda integrada por una diversidad de voces que contribuyen a la comprensión de variaos tópicos y vínculos con las diversas estructuras del mundo y sus sistemas, exigiendo la adopción de nuevos métodos para problemas que no logran ser comprendidos bajo el purismo conservador del trabajo metodológico. Los territorios de lo inclusivo construyen una epistemología neo-materialista.
(DE)FORMATION JOURNEY IN THE ELIAS CANETTI AUTOBIOGRAPHY NARRATIVE
Authors: Matos-de-Souza Rodrigo 
Published: April 2021

This article addresses the Elias Canetti’s autobiography from a formative point of view searching for another meaning for the trip concept, in which desire and pleasure are not present, as one would expect from a sightseeing tour or trekking, but a journey that, involuntary and forcibly, crosses the individual, (de)forming them. Accordingly, the refuge, the escape, the self-exile, they relate a path of personal tragedies that gains other meanings when narrated. Elias Canetti’s autobiographical narrative is divided in three volumes – “The tongue set free”, “The torch in my ear” and “The play of the eyes” – and tells us about the author’s migratory routes across a Europe crumbling under wars and totalitarian regimes which arose in the first half of the 20th century. His testimony is an account of a world that catches a glimpse of totalitarian experiences and the trivialization of evil that marks the history of Western civilization. Elias Canetti’s writings narrates the roads he had to take to avoid direct contact with the Great Wars, and exposes certain (de)formative aspects of migration, as well as how these experiences, so open to uncertainties and rid of any guaranties, appear before the eyes of a young man from a rich family, whose mother tried to protect from the perils of the world. This feature is one of many highlights, a sine qua non element in his stories, because that is where all the terror and pain lie for those who flee their homeland to venture into foreign lands in an almost instinctive attempt to survive. It is in this sense that we work the concept of (de)formation in its relation with the concept of journey.
Diagnóstico socio ambiental de la “Finca La Vieja”, (Municipio de Cimitarra-Santander) como estrategia para determinar su potencial ambiental en la recuperación del ecosistema
Authors: Varón Román Yenni Alejandra , Quitian Rojas Alba Lucia 
Published: April 2021

La fragmentación de bosques y la degradación de hábitats asociadas son consideradas como las principales causas de la pérdida de biodiversidad en Colombia, es ese sentido que urgen acciones que mitiguen y restablezcan ecosistemas afectados, para ello, una de las estrategias más importantes es la recuperación y restauración de ecosistemas. Sin embargo, ante estas estrategias surgen también una serie de implicaciones relacionadas con la ausencia de información o su falta de accesibilidad, tal como lo son datos actualizados de la flora y fauna amenazada, información satelital de las zonas afectadas, entre otras. En consideración, el presente documento tuvo como objetivo generar un diagnóstico socioambiental a partir de la caracterización del relicto boscoso asociado a la finca “La Vieja” y demás fincas asociadas, con el fin de determinar su potencial ambiental en la restauración del ecosistema local y el mantenimiento de los servicios que ecosistémicos. En ese contexto, el presente diagnóstico se desarrolló considerando factores biofísicos como la vegetación, la fauna y el componente social. Para dicho fin, se tuvo en cuenta información secundaria de instituciones y entidades regionales, así como de información recolectada a partir de recorridos en campo, entrevistas, diálogos con la comunidad y observaciones directa del estado de los principales sistemas boscosos. Como resultado de esta investigación se estimó que el estado actual de las fincas es óptimo en términos de la diversidad de fauna encontrada y del estado sus principales sistemas boscosos, de la misma manera se detectaron zonas de bosque débilmente conectadas por lo cual se propone un mapa de conectividad biológica.
La caracterización del ecosistema se desarrolló considerando factores biofísicos como la vegetación, la fauna y el componente social. Para dicho fin, se tuvo en cuenta información segundaria de instituciones y entidades regionales. Así mismo se llevaron a cabo recorridos en campo, se aplicaron entrevistas, se generaron diálogos con la comunidad y se observó de manera directa el estado de los principales sistemas boscosos.
A partir de la georreferenciación se generaron mapas relacionados con los cambios de la cobertura vegetal, usos del suelo y se propone así mismo un mapa de conectividad biológica, todo esto con el objetivo conocer el estado de los bosques a nivel de paisajes y formular mejores estrategias que permitan la conectividad del sistema boscoso.
Efficacy and Safety of Mulberry Twig Alkaloids Tablet for the Treatment of Type 2 Diabetes: A Multicenter, Randomized, Double-Blind, Double-Dummy, and Parallel Controlled Clinical Trial
Authors: Qu Ling , Liang Xiaochun , Tian Guoqing , Zhang Gaili , Wu Qunli , Huang Xiumei , Cui Yazhong , Liu Yuling , Shen Zhufang , Xiao Changqing , Qin Yingfen , Miao Heng , Zhang Yongyan , Li Ziling , Ye Shandong , Zhang Xuezhi , Yang Jing , Cao Guiwen , Li Yi , Yang Gangyi , Hu Ji , Wang Xiaoyue , Li Zhengfang , Li Yukun , Zhang Xiuzhen , Zhang Guangde , Chen Li , Hua Wenjin , Yu Ming , Lu Chunyan , Zhang Xiaomei , Jiang Hong 
Published: April 2021

OBJECTIVE
This study aimed to evaluate the efficacy and safety of mulberry twig alkaloids (Sangzhi alkaloids [SZ-A]) in the treatment of type 2 diabetes (T2D).

RESEARCH DESIGN AND METHODS
This was a multicenter, randomized, double-blind, double-dummy, and parallel controlled noninferiority clinical trial that was conducted for 24 weeks. A total of 600 patients were randomly allocated to the SZ-A group (n = 360) or acarbose group (n = 240). The primary efficacy end point was the change of glycosylated hemoglobin (HbA1c) compared with baseline. In addition, adverse events (AEs), severe AEs (SAEs), treatment-related AEs (TAEs), and gastrointestinal disorders (GDs) were monitored.

RESULTS
After treatment for 24 weeks, the change in HbA1c was –0.93% (95% CI –1.03 to –0.83) (–10.2 mmol/mol [–11.3 to –9.1]) and –0.87% (–0.99 to –0.76) (–9.5 mmol/mol [–10.8 to –8.3]) in the SZ-A and acarbose groups, respectively, and the least squares mean difference was –0.05% (95% CI –0.18 to 0.07) (–0.5 mmol/mol [–2.0 to 0.8]) between the two groups, with no significant difference on the basis of covariance analysis (P &gt; 0.05). The incidence of TAEs and GDs was significantly lower in the SZ-A group than the acarbose group (P &lt; 0.01), but no differences for AEs or SAEs between the two groups were observed (P &gt; 0.05).

CONCLUSIONS
SZ-A exhibited equivalent hypoglycemic effects to acarbose in patients with T2D. Nevertheless, the incidence of TAEs and GDs was lower following SZ-A treatment than acarbose treatment, suggesting good safety.
Usos de objetos y anticipaciones corporales en el desarrollo temprano
Authors: Vietri Maximiliano , Alessandroni Nicolás , Piro María Cristina 
Published: April 2021

Existe evidencia de que las interacciones diádicas contribuyen con la emergencia de la comprensión intencional. No obstante, poco se sabe acerca del rol que las interacciones triádicas (adulto-objeto-bebé) tienen en este proceso. Presentamos un análisis cualitativo de cuatro observaciones realizadas en el hogar, en Ensenada (Buenos Aires, Argentina). Dichas observaciones fueron un recorte de un estudio más amplio en el que se observaron, una vez por mes a lo largo de 7 meses, las interacciones de bebés con sus tutores y objetos. Los resultados muestran que los bebés anticipan corporalmente las acciones que los adultos realizan empleando objetos en situaciones de interacción triádica (adulto-objeto-bebé). La participación de los bebés en interacciones triádicas contribuye con la emergencia de anticipaciones corporales cada vez más complejas, coordinadas con el comportamiento de los demás y ajustadas a los usos canónicos de los objetos. Se defiende que estas anticipaciones son casos de comprensión intencional enactiva.
Isotherm and kinetics of methylene blue removal byMusa acuminatapeel adsorbents
Authors: Noor Nurul Huda Mohd , Zaini Muhammad Abbas Ahmad , Yunus Mohd Azizi Che 
Published: April 2021

AbstractAdsorbents were derived from banana peel through chemical treatment using phosphoric acid, potassium hydroxide, and sodium hydroxide to adsorb methylene blue from water. The adsorption of methylene blue was performed at varying concentrations and contact times. The equilibrium data fitted well with Langmuir equation, with a maximum monolayer adsorption capacity of 99.28 mg/g (28%). Phosphoric acid-treated adsorbent exhibits a greater capacity despite a lower affinity than the other adsorbents. A two-stage batch adsorber model was developed to optimize the adsorbent dosage for performance evaluation. Banana peel is a promising resource of adsorbent for wastewater treatment.
Designing of the Machine for Cutting Transport Belts: Conceptual Works
Authors: Kale Aashutosh , Biszczanik Aleksandra , Wałęsa Krzysztof , Kukla Mateusz , Berdychowski Maciej , Wilczyński Dominik 
Published: April 2021

Abstract
Belt conveyors are commonly employed in manufacturing and excavation processes. One of the basic components of such equipment are flat transport belts which can be monolithic or composite. In both cases, the belts are most often made of plastic materials. The manufacturing process of flat transport belts usually involves two stages. During the first stage, belts of very high length of up to several hundred meters are manufactured with use of the correct technology for a given belt type. In order to be usable in the finished conveyor system, correct length of such belts is to be achieved. Considering the above, the subsequent stage of manufacturing requires cutting the belts down to the appropriate length and very often joining the ends to form a closed loop with specific circumference. In an attempt to answer the demand of the manufacturing industry, the authors took up design works on an automated device for crosswise cutting of monolithic and composite belts. This article presents three construction concepts of the authors’ own design together with an analysis of construction and operating factors which affect their usability. The presented discussion leads to selecting one of the solutions for which a drive system concept designed by the authors is proposed. Additionally, an analysis of the influence of the cutting knife geometry on cutting force is provided.
The Evaluation of Arthrospira platensis Bioactivity and their Dietary Supplementation to Nile Tilapia Vegetarian Diet on Growth Performance, Feed Utilization, Body Composition and Hemato-Biochemical Parameters
Authors: Mansour Abdallah Tageldein , Alsaqufi Ahmed Saud , Alkhamis Yousef A. , Al-Gazar Faten Fathy , Zaki Mohamed Abdullah , Nour Abdel Aziz Moussa , Ramadan Khaled M. A. 
Published: April 2021

Abstract
The present study aimed to identify the carotenoid content and evaluate the antioxidant activities of spirulina, Arthrospira platensis (in vitro), and the effect of its supplementation to a vegetarian diet on growth performance, feed utilization, body proximate composition and physiological status of Nile tilapia, Oreochromis niloticus (in vivo). The carotenoid content of spirulina was identified by UPLC-MS/MS and showed that trans and cis β-carotene were the major carotenoids (88.3%) followed by β-cryptoxanthin and zeaxanthin. The antioxidant activity of spirulina was determined in water and crude carotenoid extracts by 2,2-diphenyl-1-picryhydrazyl (DPPH) scavenging assay, both extracts showed a significant free radical scavenging capacity. In addition, Nile tilapia fry (0.83 ± 0.01 g) was fed a vegetarian diet supplemented with different levels of spirulina for 12 weeks. The results revealed that the highest growth performance and nutrient utilization were recorded with 0.5% spirulina and the peak response determined at 0.63%-0.65% using polynomial second order regression. Also, the hemoglobin content improved in a quadratic regression model with the peak at 0.67% spirulina. Plasma total protein and lipid contents increased significantly with spirulina levels over 0.50%. Moreover, the aminopeptidase activities and glucose level decreased significantly with increasing spirulina levels. The current study recommended the supplementation of the Nile tilapia vegetarian diet with spirulina at levels of 0.63-0.65% for better growth performance and physiological status.