bluuebunny/crossref_metadata_2025_split huggingface dataset:
Assessoramento remoto por meio de escritórios virtuais: uma categorização de serviços prestados
Authors: Paes Raul Vitor Oliveira , Santiago Cibelle da Silva 
Published: April 2020

O crescimento da profissão de secretário tem se materializado em outras formas de assessoria, com o intuito de acompanhar os novos modelos organizacionais que estão surgindo. Assim, é possível agregar valor a esta profissão a partir dos serviços que são prestados através dos Escritórios Virtuais. Nessa perspectiva, este trabalho tem como objetivo geral investigar os serviços prestados pelos assistentes remotos por meio de escritórios virtuais. A abordagem teórica foi centrada na assessoria e assessoramento virtual, bem como nos novos modelos organizacionais. A metodologia da pesquisa foi do tipo bibliográfica, exploratória e descritiva com a abordagem qualitativa. A coleta de dados foi feita com nove profissionais que atuam em escritório virtual, alcançados com questionário online da plataforma Google Forms, de forma que os dados foram analisados sob o método da análise de conteúdo de Bardin (2011). Os resultados mapearam os serviços mais oferecidos pelos escritórios virtuais secretariais, a saber: a) cadastro e atualização de clientes; b) organização de contas pessoais e profissionais em aplicativos de escritório ou com sistema online; c) organização de documentos para contabilidade; d) digitação, redação e revisão de documentos; e) gerenciamento de e-mails; f) elaboração de planilhas financeiras; g) elaboração de orçamentos diversos e h) consultoria e assessoria no planejamento e execução de eventos.
Governança cooperativa: mapeamento do perfil das publicações científicas internacionais (1991-2018)
Authors: Santos Ramon Rodrigues dos , Santos Joséte Florencio dos , Da Silva Alexsandra 
Published: April 2020

Este artigo buscou identificar os elementos que descrevem o perfil das publicações científicas sobre governança cooperativa nos periódicos indexados na base Scopus no período de 1991 a 2018, contemplando os termos Cooperative Governance e Gobernanza Cooperativa. Os principais resultados mostram que a produção científica internacional sobre a temática apresenta 94 trabalhos publicados, com destaque para o período mais recente, de 2016 a 2018. Em maioria, os artigos são classificados na área Social Sciences e Economics, Econometrics and Finance e são predominantemente produzidos por autores cujas instituições são sediadas nos Estados Unidos e Holanda. Em complemento, identificou-se que a rede de autores é isolada, não havendo cooperação entre os clusters e que os trabalhos citados concentram, dentre as suas palavras-chave, os termos “hazard model”, “borrower-dominated”, “saver-dominated” e “risco moral”.
Growth, Yield and Nutrient Use Efficiency of Corchorus olitorius under Irrigated and Rain-fed Conditions in Northeastern Benin (West Africa)
Authors: Katé Sabaï , Tovihoudji Pierre G. , Batamoussi-Hermann Michel , Sossa Elvire L. , Idohou Rodrigue , Agbangba Emile Codjo , Sinsin Brice 
Published: April 2020

Aims: Investigated the influence of organic manures (municipal solid waste compost [MSWC] and cow dung) and N-fertilizer on growth, yield and nutrient use efficiency of jute mallow (Corchorus olitorius L.) under two water regimes (rain-fed and irrigated).
Study Design: Randomized complete block.
Place and Duration of Study: Farm of Faculty of Agricultural Sciences, University of Parakou, Northern Benin (latitude 09°20’16.8’’N and longitude 002°38’54’’ E, 353 m asl), during 2013 rainy (June to August) and dry seasons (October to December 2013).
Methodology: Ten treatments derived from a factorial combination of five levels of organic manures (control, MSWC at 10 t/ha, MSWC at 20 t/ha, cow dung at 10 t/ha and cow dung at 20 t/ha) and two levels of N-fertilizer (0 kg and 50 kg urea/ha), arranged in a randomized complete block with three replicates were considered.
Results: Results showed that water regime significantly (p<.001) affected growth and yield of jute mallow. In addition, the growth and yield parameters showed significant differences (p<.001) in relation to different rates of organic manures. The integrated use of organic manure and urea increased plant height, number of leaves, stem diameter, number of branches, leaf growth parameters and leaf yield. The maximum amount of leaf yield (7554.88 kg/ha) was obtained with 20 tons/ha of MSWC and 50 kg urea/ha.
Conclusion: Fertilizer types also had highly significant effects on nutrient use efficiency. Application of these treatments could help to enhance yield and growth of the jute mallow.
Assessment of Vitamin D Knowledge and Awareness among Female Students of Applied Medical Sciences Faculty, Umm Al-Qura University
Authors: Mostafa Reham A. 
Published: April 2020

Background: Despite the numerous functions of vitamin D, there are still billions of people worldwidewho have vitamin D deficiency or insufficiency, and the highest prevalence is in the Middle East, mostly females.
Aim of The Study: This study aimed to assess the knowledge and behaviors of applied medical science female students regarding vitamin D. Participants and methods: A cross- sectional study was conducted at the Faculty of Applied Medical Sciences- Umm Al-Qura University. An electronic questionnaire was assigned for (156) students from female section and chosen from an age group (18-22 years) to assess their vitamin D knowledge and attitudes. Data analysis was done using the Statistical Package of the Social Science (SPSS) version 20, using frequency and chi-square test. A p-value less than or equal to 0.05 was considered significant.
Results: About 57% of the students were not aware that the overuse of sunscreen could block the ultraviolet rays from reaching the skin, thus decreased production of vitamin D. The overall knowledge of the students about vitamin D sources (fortified milk, mushrooms and eggs) was decent.
Conclusion: the students had a good background of vitamin D functions, sources, and deficiency symptoms but wasn't reflected on their behavior, this gap between their knowledge and their lifestyle must be filled through health education for better health.
Chemtrails are Not Contrails: Radiometric Evidence
Authors: Herndon J. Marvin , Hoisington Raymond D. , Whiteside Mark 
Published: April 2020

Aims: Concerted efforts are made to deceive the public into falsely believing the jet-emplaced tropospheric aerosol trails, called chemtrails by some, are harmless ice-crystal contrails from aircraft engine exhaust-moisture. Our objective is to use radiometric measurements in the range 250-300 nm to show that a typical chemtrail is not a contrail, and to generalize that finding with additional data.
Methods: We utilized International Light Technologies ILT950UV Spectral Radiometer mounted on a Meade LXD55 auto guider telescope tripod and mount assembly.
Results: Radiometric solar irradiance spectra data that included the transit of a typical tropospheric aerosol trail between radiometer-sensor and the solar disc showed significant absorption during the transit period. The during-transit absorption is wholly inconsistent with the almost negligible adsorption by ice, but is wholly consistent with absorption by aerosolize particulates, including coal fly ash. This result is consistent with other aerosol-trail physical phenomena observations.
Conclusions: The public and the scientific community have been systematically deceived into falsely believing that the pervasive, jet-sprayed ‘chemtrails’ are harmless ice-crystal contrails. We have presented radiometric measurements which unambiguously prove the falsity of that characterization for one specific, but typical instance. We show in a more general framework that the physical manifestations of the aerial trails are inconsistent with ice-crystal contrails, but entirely consistent with aerosol particulate trails. We describe potential reasons for the deception, and cite the extremely adverse consequences of the aerial particulate spraying on human and environmental health. For the sake of life on Earth, the modification of the natural environment by aerial particulate spraying and other methodologies must immediately and permanently end.
The Role of Environmental Distractions in the Experience of Fibrofog in Real‐World Settings
Authors: Kratz Anna L. , Whibley Daniel , Kim Samsuk , Williams David A. , Clauw Daniel J. , Sliwinski Martin 
Published: April 2020

ObjectivePerceived cognitive dysfunction in people with fibromyalgia (FM), “fibrofog,” is commonly reported and has been demonstrated in neurocognitive testing. Distractibility and inattention have been implicated as potential contributors to fibrofog, but the role of environmental distractions has not been explored. In this study, ambulatory assessment methods were used to examine whether FM is related to more environmental distractions and to examine the impact of distractions on subjective and objective cognitive functioning.MethodsFifty people with FM and 50 age‐, sex‐, and education‐matched controls without FM completed 8 consecutive days of ambulatory assessments. Five times per day, participants reported perceived cognitive functioning and environmental distractions and completed validated tests of processing speed and working memory.ResultsThe FM group reported distractions in a higher proportion of the ambulatory cognitive testing sessions (40.5%) compared with the group without FM (29.8%; P < 0.001) and more often reported multiple simultaneous distractions. For both groups, sound was the most common distraction. The group with FM reported more distractions caused by light, and the group without FM reported more social distractions. Group differences in subjective and objective cognitive functioning were not augmented during distraction relative to during periods of no distraction. There were no group differences in within‐person changes in cognitive functioning as a function of distraction.ConclusionThe group with FM reported more distractions than the group without FM; both groups reported poorer processing speed when distracted, and the effects of distraction on test performance did not differ significantly by group. Findings suggest that sensitivity to environmental distractions may play a role in the experience of cognitive dysfunction in FM.
Flexible Micropillar Array for Pressure Sensing in High Density Using Image Sensor
Authors: Cao Zimei , He Kaiyang , Xiong Wei , Chen Yan , Qiu Xianbo , Yu Duli , Guo Xiao‐Liang 
Published: April 2020

AbstractA stable flexible pressure array sensor is a key point for the development of smart robotics and prosthetic solutions. Traditional flexible pressure sensors are mainly based on piezoresistive, capacitive, and piezoelectric effect. However, pressure array sensors based on these principles need complicated wire links and complex fabrication processes. In addition, sensors based on capacitors are susceptible to interference, while piezoresistive sensors have drift problems. In this paper, a vision‐based flexible device integrating a transparent substrate with a black micropillar array is proposed. An image sensor is introduced to measure pillar sectional‐area variation caused by external pressure. Low‐cost precision machining is used to make the mold which avoids complex fabrication process in terms of lithography process. Fabricating micropillars and substrate respectively with Ecoflex gel and polydimethylsiloxane (PDMS) implies adhesion of two polymer materials. The sensor demonstrates a considerable pressure sensitivity of 0.133 kPa−1 in the pressure range 0–3 kPa owing to the softness of Ecoflex gel. Application in high‐density pressure distribution measurement such as braille reading and shape recognition is presented. The device is also believed to have promising potential applications in wearable devices, for example, arterial pulse signal measurements.
Rigid Oxygen‐Bridged Boron‐Based Blue Thermally Activated Delayed Fluorescence Emitter for Organic Light‐Emitting Diode: Approach towards Satisfying High Efficiency and Long Lifetime Together
Authors: Ahn Dae Hyun , Maeng Jee Hyun , Lee Hyuna , Yoo Hanjong , Lampande Raju , Lee Ju Young , Kwon Jang Hyuk 
Published: April 2020

AbstractThermally activated delayed fluorescence (TADF) materials have emerged as an efficient emitter for achieving high efficiency of blue organic light emitting diodes (OLEDs). However, it is challenging to satisfy both high device efficiency and long operational lifetime together. Here, highly efficient and electrochemically stable blue TADF emitter, 5‐(5,9‐dioxa‐13b‐boranaphtho[3,2,1‐de]anthracen‐7‐yl)‐10,15‐diphenyl‐10,15‐dihydro‐5H‐diindolo[3,2‐a:3′,2′‐c]carbazole (DBA‐DI) is designed and synthesized for high efficiency and long lifetime OLED. This emitter exhibits high photoluminescence quantum yield of 95.3%, small single‐triplet energy gap of 0.03 eV, short delayed exciton lifetime of 1.25 µs, and high bond dissociation energy (BDE). Also, phosphine oxide free high triplet energy host systems (single and mixed) and exciton blocking layer materials are analyzed using molecular and optical simulations to find an efficient host system with high BDE and suitable emission zone for high efficiency and stable OLEDs. The fabricated OLED with DBA‐DI and high triplet host exhibited a maximum external quantum efficiency (EQE) of 28.1% with blue CIE color coordinates of (0.16, 0.39) and long operational lifetime (LT50) of 329 h at the initial luminance of 1000 cd m−2. Furthermore, the mixed host‐based TADF device showed a slightly lower EQE of 26.4% and almost two times longer lifetime (LT50: 540 h) than the single host device.
Uniformity control and ultra‐micropore development of tubular carbon membrane for light gas separation
Authors: Li Jing‐Yi , Cheng Po‐Yu , Lin Min‐Der , Wey Ming‐Yen , Tseng Hui‐Hsin 
Published: April 2020

AbstractTubular carbon molecular sieve (CMS) membranes have been recognized as a potential module for commercial application due to its high mechanical strength and large surface area. However, the carbon layer uniformity was restricted by substrate texture and dope fluidity when the dip‐coating method was used. This study evaluated the influence of various parameters of dip‐coating with an integrated vacuum‐assisted system, including solvent vaporization rates, vertical immersion/withdrawal velocity, vacuum degree, dope composition, coating cycles on the microstructure, and gas separation performance of CMS membranes. Using vacuum assistance and a low‐vaporization solvent minimized the influence of viscosity and gravity on dope fluidity as a result of fast phase inversion. The as‐prepared tubular CMS membranes showed enhanced perm‐selectivity according to a H2/N2 gas selectivity of 8.8, a CO2/N2 gas selectivity of 6.7, a H2 permeability of 464 barrer, and a CO2 permeability of 356 barrer.
Is the middle cranial fossa a reliable predictor of temporal lobe volume in extant and fossil anthropoids?
Authors: Pearson Alannah , Polly P. David , Bruner Emiliano 
Published: April 2020

AbstractObjectivesWe investigate the suitability of middle cranial fossa (MCF) size as a proxy for temporal lobe volume (TLV), examining the strength of the association between TLV and MCF metrics and assess the reliability predicting TLV in fossil anthropoids. The temporal lobe of the primate brain is a multimodal association cortex involved in long‐term memory, auditory, and visual processing with unique specializations in modern humans for language comprehension. The MCF is the bony counterpart for the temporal lobe providing inferences for fossil hominin temporal lobe evolution. We now investigate whether the MCF is a suitable proxy for the temporal lobe.MethodsA sample of 23 anthropoid species (n = 232, including 13 fossil species) from computed tomography (CT) scans of ex vivo crania and magnetic resonance imaging (MRI) of the in vivo brain were generated into three‐dimensional (3D) virtual models. Seven linear metrics were digitally measured on the right MCF with right TLV calculated from in vivo MRI.ResultsRegression analyses produced statistically significant correlations between TLV and all MCF metrics (r ≥ 0.85; p ≤ 0.0009) with TLV predictions within ±1 standard error and three MCF metrics (posterior‐width, mid‐length, and mid‐width) the most reliable predictors of TLV with only one metric weakly associated with TLV.DiscussionThese findings indicate a strong association between the MCF and TLV, provide reliable predictors of fossil TLV that were previously unattainable, allow the inclusion of fragmentary fossil material, and enable inferences into the emergence of modern human temporal lobe morphology.
The 9‐Borataphenanthrene Anion
Authors: Bartholome Tyler A. , Kaur Aishvaryadeep , Wilson David J. D. , Dutton Jason L. , Martin Caleb D. 
Published: April 2020

AbstractThe 9‐borataphenanthrene anion is easily accessed by deprotonation of a 9,10‐dihydro‐9‐boraphenanthrene and its diverse reactivity is investigated. Alkylation occurs at the carbon atom adjacent to boron, and room temperature hydroboration occurs across the B=C bond. The π‐manifold of the central BC5 ring coordinates to chromium in an η6 fashion while only the B=C unit binds η2 to gold, indicating versatility of the 9‐borataphenanthrene anion as a ligand. Supporting calculations rationalize the reactivity and aromaticity is corroborated by nucleus‐independent chemical shift (NICS) indices.
A Two‐Dimensional Mesoporous Polypyrrole–Graphene Oxide Heterostructure as a Dual‐Functional Ion Redistributor for Dendrite‐Free Lithium Metal Anodes
Authors: Shi Haodong , Qin Jieqiong , Huang Kai , Lu Pengfei , Zhang Chuanfang (John) , Dong Yanfeng , Ye Mao , Liu Zhongmin , Wu Zhong‐Shuai 
Published: April 2020

AbstractGuiding the lithium ion (Li‐ion) transport for homogeneous, dispersive distribution is crucial for dendrite‐free Li anodes with high current density and long‐term cyclability, but remains challenging for the unavailable well‐designed nanostructures. Herein, we propose a two‐dimensional (2D) heterostructure composed of defective graphene oxide (GO) clipped on mesoporous polypyrrole (mPPy) as a dual‐functional Li‐ion redistributor to regulate the stepwise Li‐ion distribution and Li deposition for extremely stable, dendrite‐free Li anodes. Owing to the synergy between the Li‐ion transport nanochannels of mPPy and the Li‐ion nanosieves of defective GO, the 2D mPPy‐GO heterostructure achieves ultralong cycling stability (1000 cycles), even tests at 0 and 50 °C, and an ultralow overpotential of 70 mV at a high current density of 10.0 mA cm−2, outperforming most reported Li anodes. Furthermore, mPPy‐GO‐Li/LiCoO2 full batteries demonstrate remarkably enhanced performance with a capacity retention of >90 % after 450 cycles. Therefore, this work opens many opportunities for creating 2D heterostructures for high‐energy‐density Li metal batteries.
Investigation of Structural Evolution of SnO2 Nanosheets towards Electrocatalytic CO2 Reduction
Authors: Li Xiaogang , Dou Shuo , Wang Jiong , Wang Xin 
Published: April 2020

AbstractIn‐depth understanding of the catalytic active sites is of paramount importance for the design of efficient electrocatalysts for CO2 conversion. Here we highlight the structural evolution of SnO2 nanosheets for electrocatalytic CO2 reduction. The transformation of SnO2 into metallic Sn would occur on the surface of catalyst during the catalytic process, followed by enhanced selectivity and activity for the conversion of CO2 to HCOOH. Electrocatalytic characterization and structural analysis demonstrate that the metallic Sn derived from structural evolution plays a dominant role in the CO2 reduction to HCOOH. This work deepens the understanding of the catalytic mechanism and provides a new pathway for the rational design of advanced electrocatalysts for CO2 reduction.
Sulfur‐Doped Carbon‐Wrapped Heterogeneous Fe3O4/Fe7S8/C Nanoplates as Stable Anode for Lithium‐Ion Batteries
Authors: Chen Kang , Kong Xiangzhong , Xie Xuefang , Chen Jing , Cao Xinxin , Liang Shuquan , Pan Anqiang 
Published: April 2020

AbstractInvited for this month's cover picture is the group of Prof. Anqiang Pan at Central South University (P.R. China). The cover design is inspired by lotus petals and illustrates the morphology of the sulfur‐doped carbon wrapped heterogeneous Fe3O4/Fe7S8/C nanoplates. The excellent electrochemical performance can be attributed to the carbonaceous porous nanoplates structure, smaller crystallites and binary boundaries of Fe3O4/Fe7S8/C. Read the full text of the Article at 10.1002/batt.201900134.
Effectiveness of biogenic waste‐derived heterogeneous catalysts and feedstock hybridization techniques in biodiesel production
Authors: Etim Anietie O. , Musonge Paul , Eloka‐Eboka Andrew C. 
Published: April 2020

AbstractBiodiesel has the potential to contribute significantly to the elimination of the present global energy and climate change logjam, but its production and commercialization have been hindered by the diverse nature of the feedstocks used for production. This paper reviews the effectiveness of applying various types of crop and animal waste‐derived catalysts together with innovative feedstock hybridization as an economically viable technique for biodiesel production. Feedstock challenges, availability, and sustainability for large‐scale applications are addressed with a view to bridging the existing gaps. Challenges in the use of edible oils and algae oil sources and development remain, but the technique of feedstock hybridization appears to be very promising, innovative, and cost‐effective for biodiesel production. The present state of biodiesel production could be improved by the application of simple and cost‐effective technologies in the feedstock system. High free fatty acid (FFA) content is the major hurdle to the use of most oils, especially low‐grade/advanced oil feedstocks, in biodiesel production. This could be addressed through technological application of feedstock hybrids and biogenic waste‐derived heterogenous catalysts, and their biochemical modifications. Conventional technology for the large‐scale application of inorganically derived catalysts in biodiesel production with various characteristic differences is presented. Heterogenous catalysts derived from biogenic wastes and their modification could be used to overcome associated problems with the use of inorganic catalysts in biodiesel production. Biogenic waste‐derived heterogenous catalysts are renewable, available, eco‐friendly, and cost‐effective. Technological applications of heterogeneous catalysts derived from biogenic waste are outlined and reviewed, considering various materials and different modification techniques to identify appropriate options for scaling up development. This review also discusses fundamental considerations for the exploitation of feedstock hybrids to optimize biodiesel production and its sustainable development. © 2020 Society of Chemical Industry and John Wiley & Sons, Ltd