bluuebunny/crossref_metadata_2025_split huggingface dataset:
Por uma geografia das comunidades tradicionais: metodologias participativas para a compreensão dos etnosolos na Colônia Z-29, Jaramataia-Alagoas
Authors: Pereira Jackson Belo , Oliveira Matteus Freitas de , Farias José Lucas Nunes de 
Published: February 2020

RESUMO: Este artigo tem como proposta discutir a importância do uso de metodologias participativas em pesquisas relacionadas a comunidades tradicionais. O Brasil possui inúmeras expressões culturais, e, por isso mesmo, comunidades indígenas, quilombolas, camponesas, pesqueiras, entre outras, mantêm relações socioespaciais singulares em seus territórios. A ciência tradicional hegemônica invisibilizou, por muito tempo, questões de pesquisa por meio de metodologias frias e escritas parciais que não alcançavam o território identitário dessas comunidades. Parte-se aqui da experiência de pesquisas realizadas na Colônia Z-29, no Povoado São Pedro, em Jaramataia, Alagoas, para compreender como saberes e fazeres ancestralizados são acionados para classificar, por meio de chaves de identificação, diferentes tipos de solos e seus usos. A partir da participação observante, foram realizadas rodas de conversa que foram potencializadas com o uso da técnica da mística, buscando conhecer as cosmologias pesqueiras com relação aos solos registradas em diário de campo do método geoetnográfico. Destaca-se que a abordagem etnopedológica não serviu apenas para classificar os solos partindo dos saberes tradicionais, mas refletiu a identidade, a coletividade e a ancestralidade de um povo que precisa de uma outra escrita acadêmica tão potente quanto suas oralidades.
PALAVRAS-CHAVE: Saberes e fazeres, Chaves de identificação, Participação observante, Geoetnografia, Rodas de conversa.
Agroecologia e horta escolar como ferramentas de educação ambiental e produção de alimentos naturais
Authors: Silva Lucas Francisco da , Barros Rubens Pessoa de , Pinheiro Rodrigo Almeida , Silva Jecilãine Efigênia da , Cabral Maria Jéssica dos Santos , Lima Jéssika Silva de 
Published: February 2020

RESUMO: A escola que adota a educação ambiental como instrumento de sensibilização deve orientar o aluno a buscar valores que conduzam a uma rotina harmoniosa com o ambiente em que está inserido. E, neste sentido, a horta escolar pode agir como um campo de ensino e aprendizagem dentro da escola, podendo ser acessado em muitos momentos pelos discentes e docentes da instituição que aderiram à técnica como uma ferramenta de ensino. Diante do que foi exposto, objetivou-se com esse trabalho utilizar técnicas agroecológicas associadas à educação ambiental para a construção de uma horta escolar na Escola Municipal Deputado José Lúcio de Melo. A ação foi desenvolvida no período de janeiro a março de 2019. Para a construção da horta, realizou-se o manejo do solo, adubação e posteriormente a semeadura de sementes e mudas nos canteiros. Diante da implantação da horta escolar, percebeu-se que se opondo ao modelo convencional, as técnicas agroecológicas têm um potencial para a produção de alimentos orgânicos, assim garantindo a manutenção e preservação do meio ambiente. O processo torna-se fundamental para o ensino e aprendizagem dos alunos, podendo ser constatado de acordo com as respostas obtidas do questionário sobre as experiências durante o processo de construção e acompanhamento da horta até o período de colheita. Por tanto, conclui-se que as técnicas agroecológicas associadas às práticas de ensino em educação ambiental foram fundamentais para o processo de implantação da horta escolar.
PALAVRAS-CHAVE: Orgânicos; Produção; Sustentabilidade.
Adaptation of Malt Barley (Hordeum Vulgare L.) Varieties in the highlands of North Gondar
Authors: Tahir Zeynu , Azanaw Asfaw 
Published: February 2020

Study was initiated with the objectives to identify high yielder malt barley varieties. The trial has been conducted during 2014 main season and laid out on randomized complete block design with three replications. Analysis of variance was computed using SAS, 2002. At Dabat, result showed that highly significant difference among the varieties (p < 0.05) for all agronomic traits. At Debark and Wegera the analysis of variance indicated that highly significant to a significant difference among varieties at p < 0.05 for days to heading, days to maturity, plant height, spike length, thousand seed weight and grain yield, and seed per spike. The combined analysis of variance showed that highly significant difference among varieties for days to heading, days to maturity, plant height, spike length, and grain yield. The location also contributed the significant effect for all yield components except biomass and grain yield. The interaction of location by genotype showed the highly significant difference on days to maturity and plant height. The average heading days ranged from 70-81 and the average maturity days were ranged from 127-136. Among the tested varieties, IBON-174/03 and SABINI exhibited highest grain yield. The overall combined analysis indicated that IBON-174/03 and SABINI were high yielder and well adapted at the tested sites. Therefore those varieties are recommended for production in the testes sites, and similar agro-ecologies.
Relación entre estrés percibido y calidad de sueño en enfermeras de turnos nocturno y rotativo
Authors: Peña-Rodríguez Iván-Alfredo , Nieto-Olarte Lina-Paola , Sánchez-Preciado Diana-Mayerli , Cortés-Lugo Rafael-Leonardo 
Published: February 2020

Objetivo: determinar si existe relación entre el estrés percibido y la calidad de sueño en las enfermeras de los turnos nocturno y rotativo de la empresa social del Estado Hospital San Rafael de Facatativá. Metodología: estudio transversal con alcance correlacional donde se evaluó el estrés percibido y la calidad de sueño por medio de la escala de estrés percibido - versión 14 y el índice de calidad de sueño de Pittsburg -versión colombiana, respectivamente, en una muestra de 98 enfermeras que cumplieron con los criterios de inclusión. Resultados: se presentó una prevalencia del 72,45 % de estrés percibido y del 79,59 % de mala calidad de sueño; entre estas dos variables se halló una correlación baja (r = 0,258; p = 0,010). Se puede asegurar con un 95 % de confianza que mientras una variable aumenta, la otra también lo hace, queriendo decir que a mayor puntaje en la escala de estrés percibido, mayor puntaje en el índice de calidad de sueño de Pittsburgh, lo que sugiere que el nivel de estrés es un factor que tiene relación directamente proporcional con el sueño, es decir, entre mayor estrés, peor calidad de sueño. Conclusiones: se concluye que sí existe relación entre el estrés percibido y la calidad de sueño, lo cual evidencia, por un lado, que en las enfermeras a mayor estrés, peor calidad de sueño, y por otro, que a peor calidad de sueño, mayor estrés.
Vigilancia epidemiológica de ciclopía en el Hospital Universitario del Valle, Cali (Colombia) 2004-2008
Authors: Saldarriaga Wilmar 
Published: February 2020

Objetivos: determinar y analizar la prevalencia de ciclopía en el Hospital Universitario del Valle (HUV) y buscar en los casos los factores etiológicos descritos en la literatura.Metodología: el presente es un estudio de corte transversal analítico, ensamblado a partir del sistema de vigilancia epidemiológica de malformaciones congénitas en el HUV y bajo la metodología del Estudio Colaborativo Latinoamericano de Malformaciones Congénitas (ECLAMC), se detectaron los casos de ciclopía acontecidos entre diciembre de 2004 y abril de 2008, se obtuvo el número de nacimientos y se encontró la prevalencia de ciclopía en el HUV. Gracias a un formato de entrevista del ECLAMC, se buscaron en las pacientes los factores que según la literatura se asocian con la ocurrencia de ciclopía. Se tomó fotos de cada uno de los casos.Resultados: durante el período comprendido entre diciembre de 2004 y abril de 2008 se presentaron 18.224 nacimientos en el HUV. De éstos, 8 presentaron ciclopía con una prevalencia de 1 en 2.278 nacimientos (43,8 por 100.000). Todos los casos se clasificaron según Meyer como tipo I y 3 casos presentaron etmocefalea. Se encontró exposición a misoprostol, alcohol y marihuana en un caso; diabetes en otro, marihuana en otro; un caso presentó trisomia 13 y otro en que no se obtuvo cariotipo los hallazgos sugirieron trisomía 13.Conclusiones: La ciclopía en Cali y el Valle del Cauca es considerada un evento endémico. Por lo cual, se necesita un sistema de vigilancia epidemiológico de malformaciones congénitas, holoprosencefalia y ciclopía para Cali y el Valle del Cauca. Además, se necesitan estudios controlados sobre factores de riesgo individuales y colectivos.
Congratulations! Journal of Robotics and Mechatronics Best Paper Award 2019
Authors: Editorial Office  
Published: February 2020

We are pleased to announce that the 12th Journal of Robotics and Mechatronics Best Paper Award (JRM Best Paper Award 2019) has been decided by the JRM editorial committee.
The following paper won the JRM Best Paper Award 2019, severely selected from among all 94 papers published in Vol.30 (2018). The Best Paper Award ceremony was held in Gakushi-Kaikan, Tokyo, Japan, on January 7, 2020, attended by the author and JRM editorial committee members who took part in the selection process. The award winner will also be announced on the JRM website and was given a certificate and a nearly US$1,000 honorarium.
JRM Best Paper Award 2019
Title: End-to-End Autonomous Mobile Robot Navigation with Model-Based System Support
Authors: Alexander Carballo, Shunya Seiya, Jacob Lambert, Hatem Darweesh, Patiphon Narksri, Luis Yoichi Morales, Naoki Akai, Eijiro Takeuchi, and Kazuya Takeda
J. Robot. Mechatron., Vol.30 No.4, pp. 563-583, August 2018
Global Excision of Severe Heterotopic Ossification of the Shoulder
Authors: Polfer Elizabeth M. , Nappo Kyle E. , Giuliani Jeffrey R. , Nesti Leon J. 
Published: February 2020

Case:
A 21-year-old man sustained a closed glenohumeral fracture/dislocation as a pedestrian struck by a motor vehicle. He was treated nonoperatively and developed severe post-traumatic heterotopic ossification (HO) with near-complete shoulder ankylosis. We present our technique for safe surgical excision.

Conclusions:
Excision led to improvements in motion and quality of life at 1 year postoperatively. Recommendations for successful HO excision around the shoulder include excision after at least 180 days, appropriate preoperative imaging to include cross-sectional imaging and a 3D model, intraoperative fluoroscopy, well-serviced instruments, preparation for iatrogenic fracture and/or neurovascular injury, meticulous hemostasis, postoperative HO prophylaxis, immediate postoperative therapy, and involvement of a multidisciplinary team.
Benthic Foraminifera Across the Cretaceous/Paleogene Boundary in the Eastern Tethys (Northern Alborz, Galanderud Section): Extinction Pattern and Paleoenvironmental Reconstruction
Authors: Rostami Masoud A. , Frontalini Fabrizio , Leckie R. Mark , Coccioni Rodolfo , Font Eric , Balmaki Behnaz 
Published: February 2020

AbstractExtinction patterns, paleobathymetric inferences, and paleoenvironmental changes based on benthic foraminifera were investigated across the Cretaceous/Paleogene (K/Pg) boundary at the Galanderud section (Northern Alborz, Iran), which contains one of the most continuous and expanded K/Pg transitions in the eastern Tethys. On the basis of benthic foraminiferal taxa abundance and distribution, an outer neritic to uppermost bathyal paleo-depositional setting is inferred. In addition, benthic foraminiferal assemblages and planktic/benthic ratios do not indicate any major change in relative sea level during latest Maastrichtian-early Danian time.Changes in benthic foraminiferal assemblages, morphotypes, diversity, heterogeneity, and benthic foraminiferal oxygen index, coupled with statistical analyses, define three intervals. In the first interval (uppermost Maastrichtian Plummerita hantkeninoides Zone), benthic foraminiferal assemblages are moderately to well preserved and highly diverse, with a combination of epibenthic and endobenthic taxa indicating stable, mesotrophic to weakly eutrophic, normal marine conditions. A major change in benthic foraminiferal assemblages at the K/Pg boundary defines a second interval (basal Danian Guembelitria cretacea and lower part of Parvularugoglobigerina eugubina Zones) that is marked by a decrease in the endobenthic morphogroups as well as a decrease in diversity, heterogeneity, genus and species richness. This second interval denotes highly oligotrophic conditions and a collapse in productivity and food availability due to the extinction of some primary producers, with the exception of the three chalk beds representing short-lived blooms of calcareous dinoflagellates. Benthic foraminifera do not show significant extinction at the end of the Cretaceous at this section with only about an 8% loss of species. Additionally, the abundance of some opportunistic species, including Cibicidoides pseudoacutus and Tappanina selmensis, may reflect instability in the benthic foraminiferal assemblages. The third interval (middle-upper part of the Pv. eugubina Zone) is characterized by the dominance of epibenthic morphogroups (up to 70% of the assemblages) with a partial recovery of endobenthic groups. The characteristics of the benthic foraminiferal assemblages indicate that the flux of food to the benthos had not fully recovered during the early Danian.
Los padres de familia y la sexualidad en la adolescencia
Authors: Balarezo López Gunther , Balarezo Galarreta José Manuel 
Published: February 2020

Se hizo una revisión bibliográfica de la literatura publicada sobre sexualidad en la adolescencia, y se analizarony resumieron los aspectos más relevantes. La adolescencia es una etapa en que se hace frente a una serie de cambiosbiopsicosociales, en la cual el hogar debería ser el primer centro de aprendizaje de cuestiones relacionadas con lasexualidad; pero, en la realidad, esto no ocurre, debido a que los padres muchas veces no tienen los conocimientosadecuados. Como consecuencia, los adolescentes tienen mitos y tabúes al respecto y buscan respuestas a sus dudasen medios que no son los más apropiados
Factors Influencing the Efficiency of Miscible Displacement
Authors: Blackwell R.J. , Rayne J.R. , Terry W.M. 
Published: February 2020

Published in Petroleum Transactions, AIME, Volume 217, 1959, pages 1–8.

Abstract
This paper presents results of an experimental investigation of factors that control the efficiency with which oil is displaced from porous media by a miscible fluid. The study was made to elucidate the relevant processes both on microscopic level (within individual or between neighboring pore spaces) and on macroscopic level (within a large sand body).
Mixing of miscible fluids on the microscopic level was studied in sand-packed tubes. It was found that molecular diffusion is the dominant dispersion mechanism for reservoir conditions of rate, length and pore sizes. Macroscopic channeling was studied for various mobility ratios in reservoir models-scaled to relate viscous gravitational, and diffusional forces. The formation of channels was due to viscous fingering, gravity segregation and variations in permeability. With adverse mobility ratios, it was found for reservoirs of realistic widths that diffusion will not be effective in preventing the formation and growth of fingers, even in homogeneous sands. At sufficiently low rates channeling was eliminated by gravity segregation in tilted reservoirs. The dependence of recovery on mobility ratio, length-to-width ratio, flow rate and angle of dip is presented.

Introduction
Oil recovery by solvent flooding is finding increasing application in the field. while the process promises high recoveries from the region swept by solvent, under adverse conditions only a small fraction of the reservoir volume may be swept at the time solvent breaks through to the producing well. Further, the high cost of the solvent encourages its use only as a bank whose size must be kept at a minimum. Thus, two important questions arise:what fraction of the reservoir can be swept, practically, by solvent? andwhat is the minimum size solvent bank that can be used to carry out the displacement?
The answers to these questions require knowledge of both macroscopic channeling processes and microscopic mixing processes. The studies described here were carried out to gain this knowledge. Microscopic mechanisms which cause mixing will be discussed first, because an understanding of these mechanisms is necessary for proper interpretation of the experimental work on channeling described later.
Predictive Action Planning for Hole Cleaning Optimization and Stuck Pipe Prevention Using Digital Twinning and Reinforcement Learning
Authors: Saini Gurtej Singh , Ashok Pradeepkumar , van Oort Eric 
Published: February 2020

Abstract
Poor hole cleaning leads to problems such as pack-offs, stuck pipe incidents, and lost circulation events due to increased equivalent circulating density (ECD). Hole cleaning issues can be mitigated by using a digital twinning system that constantly monitors borehole condition with real-time data and process models, and suggests optimal actions. The solution space of possible actions, however, is very large causing computational hurdles for real time implementation. This paper describes a time-efficient digital twinning approach that uses reinforcement learning (RL) to simulate scenarios corresponding to multiple hole cleaning actions.
Digital twinning of cuttings transport in a wellbore requires the development of a system with multiple integrated physics and data-based models to quantitatively detect symptoms of impending issues early, and to take actions to mitigate these problems. First, the state of the borehole is quantified in terms of ECD, concentration of cuttings in flow, and cuttings bed height. Next, a solution space of all legal and feasible actions based on the current system state is obtained. Finally, the alternate action sequences are evaluated to suggest the most suitable path forward.
To classify the state of the borehole in terms of ECD, cuttings bed height and cuttings concentration in the flow stream, hydraulics and cuttings transport models were implemented, tested and validated against real field and experimental data. Based on the state of the system, allowable actions were evaluated in terms of some combination of hole cleaning parameters that can be controlled in near real-time, such as flow rate, rotary speed, mud density, mud rheology and the weight on bit for rate of penetration (ROP) control. To limit the size of the solution space, those actions that were unrealistic for implementation in real-time were discarded. Also, any actions that violated the limits of the available drilling margin were discarded. Finally, by defining immediate rewards associated with different states-action pairs based on their effect on the wellbore stability and hole condition, the concepts of Markov reward process (MRP) and scenario realizations were used to suggest the optimal action for a given state.
The predicted output of the algorithm for multiple operational scenarios was validated by comparing it with actions that a hole cleaning / extended reach drilling (ERD) expert would have taken when given similar scenarios. The automated process of identifying hole cleaning system states, generating multiple viable hole cleaning action sequences, and finally evaluating the probability of successful hole cleaning for multiple actions in real-time and deciding the best course of action, is a novel contribution of this work. It will benefit practitioners who struggle with hole cleaning / stuck pipe-related non-productive time and pave the way for hole cleaning automation.
How Realistic is the Calculated Cementing Displacement Efficiency?
Authors: K. Foroushan Hanieh , M. Ozbayoglu Evren , J. Gomes Paulo 
Published: February 2020

Abstract
Primary cementing is a crucial task in the completion of oil and gas wells, as it is potentially meant to provide zonal isolation, and prevent uncontrolled flows and environmental hazards. Much research has been conducted to find the key techniques for obtaining the maximum displacement efficiency during cementing operations. Yet, it appears that the industry could benefit from more investigations on the complications involved in displacement processes.
In this work, a methodology is proposed in an attempt to obtain qualitative and quantitative predictions of displacement efficiency. This method, which appears to complement previously existing methods, introduces a combined analysis of instability of the interface between the two fluids with an analytical solution of fluid displacement flow in eccentric annuli. The analytical solution enables the time-dependent calculation of interface location and provides a quantitative judgement on the volume fraction of the displaced fluid left in the annular space. On the other hand, the instability models provide an insight on the degree of cement contamination, and guidelines on how to minimize the amount of inter-mixing.
The proposed approach was implemented for several displacement cases and the results were evaluated by both Computational Fluid Dynamics (CFD) simulations and experimental tests. Instability of the interface in all the cases was studied and the analysis provided more in-depth understanding of the effect of different parameters on displacement efficiency. Considering that in the existing analytical models, including the one presented in this work, the interface between the two fluids is supposed to be sharp, the calculated volume fraction of displacing fluid can be not necessarily a proper representative of the real displacement efficiency. It was observed that there can exist cases where the volume fraction of the displacing fluid did not necessarily indicate an inefficient displacement, whereas the instability analysis suggested that the corresponding design had to be avoided. This was also validated by CFD simulations. Moreover, the instability model can provide more information about the critical values of design parameters and propose optimized designs for the improvement of displacement efficiency.
The present work provides a versatile tool that enables quantitative determination of displacement efficiency, along with an enhanced judgement on the amount of inter-fluid mixing and cement contamination. The novel approach of coupling the instability analysis with displacement flow calculation not only offers improvements on displacement designs, but also assists to avoid any undesirable outcomes caused by ineffective cement placement.