bluuebunny/crossref_metadata_2025_split huggingface dataset:
Non-support for trainability of teammate recognition based on movement perception?
Authors: Steel Kylie Ann 
Published: June 2019

Accurate decisions are essential for successful performance in visually and temporally constrained sports environments such as water-polo. Visual cues (uniform and facial) can be obscured by other factors such as splash, or partial submersion, thus leading to misclassification of others as teammates and lost scoring affordances. Research suggests that similar to land gait recognition, swimming gait is also distinguishable from temporally occluded visual stimuli, thus allowing teammate recognition. This research demonstrates that while individuals have good perceptual ability it is rarely performed at a 100% rate. Therefore, the purpose of this study was to assess whether teammate recognition accuracy can be enhanced using a video-based training paradigm and, which factors affect this ability. N=12 females (Mage = 18.75yrs ± 2.5) completed a two-week video training intervention. Statistical analysis demonstrated that participant’s performance didn't change significantly after training (kick: p=0.814; stroke: p=0.939), nor was their ability dependant on experience in water-polo (kick: p=0.141; stroke: p= 0.169), skill level (kick: p=0.715; stroke: p=0.287), or training adherence (kick; p=0.536; stroke p=0.797). While some research suggests that recognition based on biological motion is trainable it was not corroborated in this study and thus requires further investigation as to the mechanisms that contribute to improvement.
E. P. Thompson
Authors: Martins Angela Maria Souza 
Published: June 2019

Este artigo analisa as contribuições de E. P. Thompson relativas a cultura, história e educação. Mostra como ele priorizou a inter-relação entre subjetividade e objetividade na construção do processo sócio histórico. Thompson realizou uma análise do contexto social e histórico, destacando a importância e a interferência da “agencia humana” no processo de formação de uma sociedade. Por isso, ele questionou veementemente a análise das formações histórico-sociais por meio da relação determinante entre base econômica e superestrutura. Considerou que as questões culturais, os valores e significados eram tão importantes quanto as questões econômicas e políticas. Havia uma relação dialética entre o cultural, o político e econômico. Esta perspectiva thompsiana o conduz a construção do que ele denominou de materialismo humanista que entrelaçou o cultural, o político e econômico, postura importante que criou um novo modo de pensar a história e o papel da educação na contemporaneidade. A educação deve ser considerada um aspecto fundamental da cultura, por isso imprescindível para a constituição de um projeto de sociedade.
A Drill Bit and a Drilling Motor With Embedded High-Frequency (1600 Hz) Drilling Dynamics Sensors Provide New Insights Into Challenging Downhole Drilling Conditions
Authors: Sugiura Junichi , Jones Steve 
Published: June 2019

Summary
Drilling motors are typically used in every well drilled globally with conventional steerable bottomhole assemblies (BHAs) and powered rotary–steerable BHAs. Downhole drilling dysfunctions are common when mud motors are pushed to the limit for maximum drilling performance. High–frequency (1600 Hz) continuous–recording compact drilling dynamics sensors were embedded into the bit, bit box, and top subassembly (sub) of the motor to better understand the dynamic role played by drilling conditions in different shales throughout North America.
In the drilling industry, most downhole measurements for drilling dynamics use relatively low–frequency sensors (up to 100 Hz). Typically, the measurements are burst and not continuous. These low–frequency burst acceleration devices cannot reliably measure high–frequency torsional oscillations (HFTOs), which are known to be problematic while drilling in certain shale basins. Newly developed high–frequency (1600 Hz) compact drilling dynamics sensors can now be embedded into the drill bit, mud–motor bit box, and top sub to record three–axis accelerations continuously at high–speed sampling rates. The embedded sensors do not add any extra length to the steerable motor and, therefore, capture the true dynamic response of the system.
Embedding the high–frequency sensors at both ends of the mud motor provides two unique data sets of dynamic measurements. With conventional steerable motors and motor–assist rotary–steerable systems (RSSs), HFTO dominant frequencies between 100 and 400 Hz were commonly observed. In some cases, HFTO dominant frequencies between 400 and 700 Hz and their harmonics were captured, which have not been previously reported. In most cases, the HFTO-induced acceleration amplitudes are between 20 and 200g (where g is the gravitational acceleration = 9.806 m/s2) peak (or between 40 and 400g peak to peak). On some occasions, ±200g self–perpetuating HFTO-induced accelerations were recorded in memory where their calculated angular acceleration is more than 25 000 rad/s2.
The transitions between low–frequency stick/slip and HFTOs were captured in high–speed recording. Negative string–rotation speeds were commonly observed at the top sub of the motor while in the rotary mode. It was noted that the bit would slow down to stop but never turn backward, resulting in the backward rotation of the motor top sub. During very–high–amplitude multiple–axis shocks at the bit, there was a significant increase in temperature because of the loss of energy from bit dysfunctions.
The newly reported drilling dynamics phenomena, such as multiple dominant HFTO frequency shifts, microsticks, and microslips, will be detailed in this paper. Monitoring and understanding high–frequency drilling dynamics dysfunctions allow us to make systematic changes to bits, BHAs, and drilling parameters to reduce the dysfunction magnitude, improve the overall drilling efficiency, and minimize component wear.
Computational and Experimental Study of Sand Entrapment in a Hydrocyclone During Desanding Operations in Oil Fields: Consequences for Leakage and Separation Efficiency
Authors: Khalde Chirag M. , Samad Abdus , Sangwai Jitendra S. 
Published: June 2019

Summary
In the oil and gas industry, upstream and downstream hydrocyclones are used extensively to separate heavy or dense particles from the formation water/reservoir fluids. These hydrocyclones, after a long period of operation, can fail as a result of wear-initiated leakage, thereby needing maintenance or replacement. A detailed investigation of this failure was carried out using computational fluid dynamics (CFD). One-way and two-way coupling of a discrete phase model was used along with the Reynolds stress turbulence model (RSM). Experimental studies were conducted to understand the flow dynamics within the hydrocyclone and to validate the computational model. Key findings, such as bifurcation of the inlet flow, local acceleration of fluid within the hydrocyclone, the impact of the sand drain pipe on fractional efficiency, and the impact of multiple particle sizes and density interactions on the degree of particle entrapment, are discussed in detail. The approach and results presented in this work provide useful insights and a systematic basis for improving the service life and separation efficiency of the hydrocyclone.
Intravenous Thrombolysis for Acute Mild Ischemic Stroke Patients: Higher ABCD2 Score Associated with Better Outcome
Authors: Li Runnan , Han Chunyan , Cai Xiuying , Kong Yan , Zhang Lulu , Lu Zhengyang , Liu Xueyun , Fang Qi , Zhu Juehua 
Published: June 2019

Abstract
Background: Up to 30% of patients with mild ischemic stroke suffer neurologic deterioration. However, optimal medical approaches of such patients remain controversial given the efficacy and safety of intravenous thrombolysis (IVT). The purpose of this study was to evaluate whether patients with acute mild stroke stratified with ABCD2 score (the risk of stroke on basis of age, blood pressure, clinical features, duration of symptoms, and presence of diabetes mellitus) could benefit from IVT.
Methods: Among 3321 patients with a final diagnosis of acute ischemic stroke, we retrospectively included 224 patients identified with acute mild neurologic deficits (National Institution of Health Stroke Scale, NIHSS ≤5) treated with or without IVT. Odds ratios (OR) with their confidence intervals (CI) for outcomes between groups were assessed by using multivariable binary logistic regression analyses. And the heterogeneity of treatment effect magnitude for excellent outcome at 90d (modified Rankin Scale [mRS] 0-1) was estimated in different subgroups.
Results: A total of 224 cases were enrolled, 106 receiving IVT and 118 treated with secondary stroke prevention strategies alone. At 7d, 30 (28.3%) patients with IVT treatment versus 16 (13.6%) patients not receiving IVT achieved significant improvement (≥4-point NIHSS score decrease or complete resolution; OR, 2.448; 95%CI, 1.204-4.977; P=0.013). At 90d, excellent outcome was achieved in 83 (78.3%) patients treated with IVT versus 77 (65.35%) patients without IVT treatment (OR, 3.156; 95%CI, 1.526-6.528; P=0.002), especially in those with ABCD2 score ≥5 (OR, 2.768; 95%CI, 1.196-6.406; P=0.017) and with stroke subtype of large artery atherosclerosis (OR, 5.616; 95%CI, 1.080-29.210; P=0.040). Besides, 7(6.6%) IVT-treated patients versus 2 (1.7%) non-IVT-treated patients developed intracranial hemorrhage (ICH; P=0.359), among these only 1 (0.9%) was symptomatic ICH in IVT group.
Conclusions: For acute mild ischemic stroke patients, we reassured the safety and especially the efficacy of IVT at 7- and 90-days. Patients with 5 or more of ABCD2 score and stroke subtype of large artery atherosclerosis might benefit more from IVT.
Projetos para envelhecer: etnografia das formas de sociabilidades e das trajetórias de vida de veteranos do remo
Authors: Vianna Luciano von der Goltz , Eckert (orientação) Cornelia 
Published: June 2019

Partindo de um exercício etnográfico, com pesquisa de campo iniciada em 2007, esse artigo busca compreender as práticas de sociabilidade relacionadas às trajetórias de vida dos integrantes de um grupo de senhores, veteranos do Remo no Clube de Regatas Guaíba-Porto Alegre. A expressão de seus saberes e práticas são construídas na observação participante no processo ritual que denominam “café na ilha do Oliveira” (pequena ilha do Delta do Jacuí) realizado nas manhãs dos domingos. O uso da imagem fotográfica e fílmica foi um importante recurso e motivo para o encontro intersubjetivo pesquisador/informante. A forma de narrar as experiências dos tempos vividos converge com as trajetórias de vida dos integrantes do grupo de veteranos, o que tece referências de pertença de identidade geracional tratadas a partir do tema da memória coletiva. Estas trajetórias são referidas ao processo de vida urbana e ao sistema de sentidos da sociedade complexa nas tensões e conflitos em torno dos valores de individualização e de hierarquização. Palavras chave: Trajetórias de vida. Projeto. Envelhecimento. Projects to aging: ethnography of forms of sociabilities and life trajectories of veterans of rowing Abstract Based on an ethnographic exercise, with field research started in 2007, this article seeks to understand the practices of sociability related to the life trajectories of members of a group of gentlemen, veterans of the Rowing Club Regatta Guaíba-Porto Alegre. The expression of their knowledge and practices are built on participant observation in the ritual process they call "coffee on the island of Oliveira" (small island in the Delta Jacuí) held on Sunday morning. The use of photographic and filmic image was an important resource and meeting ground for intersubjective researcher / informant. The way of narrating lived experiences of time coincides with the life trajectories of members of the veterans group, which weaves references generational identity of belonging treated as the theme of collective memory. These trajectories are referred to the process of urban life and the system of complex society in the sense of the tensions and conflicts around the values of individuation and hierarchy. Keywords: trajectories of life. Project. Aging.
Breves considerações sobre os territórios negros urbanos de Porto Alegre na pós-abolição
Authors: Bohrer Felipe Rodrigues 
Published: June 2019

O presente texto tem por objetivo realizar questionamentos teóricos-metodológicos sobre a investigação dos Territórios Negros de Porto Alegre no período da pós-abolição. A preocupação reside em salientar a importância de situar a pesquisa na atuação dos sujeitos em diálogo com o contexto na qual estão inseridas. Para isso, será realizado primeiramente uma revisão crítica da historiografia local para justificar o primeiro intento (atuação do sujeito), e, no segundo momento, iremos discutir a necessidade de vinculação ao contexto para sua melhor compreensão. Palavras chave: Territórios Negros Urbanos. Identidade Étnica. Pós-Abolição. Brief comments on the Territories Black Urban of Porto Alegre in post-abolition Abstract This paper aims to make theoretical and methodological questions about the investigation into the Black Urban Territories of Porto Alegre during the post-abolition. The concern is to emphasize the importance of situating the research in the performance of subjects in dialogue with the context in which they operate. This will be first performed a critical review of local history to justify the first attempt (the subject’s performance), and the second time, we will discuss the need for linking the context for better understanding. Keywords: Black Urban Territories. Ethnic Identify. Post-Abolition.
Do narrar o virtual e o real: experiência de uma tradução
Authors: Przybylski Mauren Pavão 
Published: June 2019

Esta reflexão pretende ver a memória não só como seletiva, mas como um processo de negociação que visa conciliar a memória coletiva e a individual. Para tanto, se pretende considerar imagens e discursos elaborados por sujeitos que ocupam um determinado espaço, espaço esse em que acontecem conflitos, convívio social, trocas de informações, sensibilidades e práticas que conferem sentidos e significados. A internet é, por sua vez, ferramenta de constituição de um sujeito plural. Ver e analisar a cidade não só por suas construções arquiteturais e por suas possíveis ocupações no espaço, mas, sobretudo, pela dimensão da existência, visto que ela é construída por homens e suas relações é o objetivo desta análise. Palavras chave: Memória. Internet. Espaço. Sujeito. Cidade. Narrating the virtual and real: experience of a translation Abstract This reflection aims to see not only how selective memory, but as a negotiation process that seeks to reconcile individual and collective memory. To do so, whether to consider pictures and speeches written by individuals who occupy a given space, the space in which conflicts occur, social interaction, information exchange, sensibilities and practices that give sense and meaning. The Internet is, in turn, a tool for creating a plural subject .View and analyze the city not only for their architectural constructions and their possible occupations in space, but mainly by the dimension of existence, since it is built by men and their relationships is the goal of this analysis. Keywords: Memory. Internet. Space. Subject. City.
An In Vitro Investigation of Anticaries Efficacy of Fluoride Varnishes
Authors: Dehailan L Al , Martinez-Mier EA , Eckert GJ , Lippert F 
Published: June 2019

SUMMARY
Most currently marketed fluoride varnishes (FVs) have not been evaluated for their effectiveness in preventing dental caries. The objective of this study was to investigate the anticaries efficacy, measured as fluoride release into artificial saliva (AS); change in surface microhardness of early enamel caries lesions; and enamel fluoride uptake (EFU) of 14 commercially available FVs and two control groups. Bovine enamel specimens (5×5 mm) were prepared and assigned to 18 groups (n=12). Early caries lesions were created in the specimens and characterized using Vickers microhardness (VHNlesion). FV was applied to each group of specimens. Immediately afterward, specimens were incubated in 4 mL of AS for 18 hours, which were collected and renewed every hour for the first six hours. AS samples were analyzed for fluoride using an ion-specific electrode. Specimens were then brushed for 20 seconds with toothpaste slurry and subjected to pH cycling consisting of a four-hour/day acid challenge and one-minute treatments with 1100 ppm F dentifrice for five days. Microhardness was measured following pH cycling (VHNpost). EFU was determined using microbiopsy. Acid resistance (eight-hour demin challenge) was performed after pH cycling, and microhardness was measured (VHNart) and compared with baseline values to test the FV impact after pH cycling. One-way analysis of variance was used for data analysis (α=0.05). FVs differed in their release characteristics (mean ± SD ranged from 14.97 ± 2.38 μg/mL to 0.50 ± 0.15 μg/mL), rehardening capability (mean ± SD ranged from 24.3 ± 15.1 to 11.7 ± 12.7), and ability to deliver fluoride to demineralized lesions (mean ± SD ranged from 3303 ± 789 μg/cm3 to 707 ± 238 μg/cm3). Statistically significant but weak linear associations were found between ΔVHN(post – lesion), EFU, and fluoride release (correlations 0.21-0.36). The results of this study demonstrated that differences in FV composition can affect their efficacy in in vitro conditions.
Expectativas hacia el alcohol en jóvenes universitarios y propuestas comunicacionales
Authors: Acosta Pérez Cristina Paola , Jimenez Sánchez Alvaro , Barba Guzmán Carmen Variña 
Published: June 2019

Introducción: Examinar el consumo de alcohol en una sociedad universitaria hace posible intervenir con rigor en aquellos fallos y conocer los factores que pueden promover o desalentar dicho uso en los estudiantes. Los jóvenes se caracterizan por estar atravesando una etapa evolutiva física-psicológica de gran interés, y a su vez, inmersa en un entorno sociocultural cambiante como es el paso de la secundaria a la universidad, superar la mayoría de edad y un estilo de vida abierto a nuevas experiencias como puede ser el consumo alcohólico.
Objetivo: Analizar la ingesta alcohólica en jóvenes estudiantes (18 a 25 años).
Material y Métodos: Se realizó una investigación cualitativa, se aplicó un cuestionario a 213 alumnos de la Universidad Técnica de Ambato, provincia Tungurahua, en el centro de la sierra ecuatoriana, para evaluar los aspectos relacionados con la ingesta alcohólica.
Resultados: Los resultados muestran la importancia del grupo de pares y la percepción de control en los consumidores de alcohol, así como también se observan expectativas relacionadas con el placer, el estímulo sexual o la facilitación social.
Conclusión: Es importante elaborar propuestas comunicacionales para solucionar los problemas relacionados con la ingesta alcohólica para mejorar la salud de la población
Determinantes de salud que influyen en la adherencia al tratamiento en pacientes con hipertensión arterial en Latinoamérica
Authors: Carrillo Bayas Gabriela Patricia 
Published: June 2019

Introducción: La adherencia terapéutica en enfermedades crónicas como la hipertensión arterial es un problema latente en nuestro país. Por lo que es esencial conocer los determinantes de salud que influyen en este proceso, para de desarrollar una educación sanitaria en la atención primaria de salud como en todos los niveles asistenciales, para una mejor adherencia al tratamiento farmacológico e higiénico dietético.
Objetivo: Identificar los determinantes de salud que influyen en la adherencia terapéutica de personas con hipertensión arterial en los países de Latinoamérica a partir de una revisión sistemática de la literatura científica.
Material y Métodos: Revisión bibliográfica basada en la metodología Prisma. La técnica utilizada para la recolección de datos fue la búsqueda de artículos publicados en las bases de datos Pubmed, Medline, Elsevier, Scielo, Scopus, Google Académico, en las temáticas: Adherencia Terapéutica, Hipertensión Arterial y Determinantes de salud en Latinoamérica durante el periodo 2015-2018.
Resultados: Se analizaron 20 artículos a doble ciego los cuales cumplieron con los criterios de inclusión, donde se evidencia una baja adherencia al tratamiento de la Hipertensión Arterial las cuales son provocadas por determinantes socioeconómicos, relacionados con el equipo de salud y relacionados con el paciente y la enfermedad. Conclusión: La adherencia terapéutica es un proceso complejo que está determinado por factores: socioeconómicos, relacionados con la asistencia sanitaria, la enfermedad, el tratamiento y el paciente, por lo cual se debe trabajar en cada uno de estos determinantes en conjunto con la política pública de salud para una mejor adherencia terapéutica, evitando complicaciones al pac iente y disminuyendo los gastos al estado.
Conclusiones: La adherencia terapéutica es un proceso complejo que está determinado en lo fundamental por los siguientes factores: socioeconómicos, los relacionados con el equipo de salud y asistencia sanitaria, la enfermedad, el tratamiento y el paciente.
Clinical practice of mininally invasive gynaecological surgeries
Authors: Bhandari Binaya Raj , Shrestha Ranjana , Pradhan Binita 
Published: June 2019

Introduction: Endoscopic gynaecological surgery which is a routine practice in outer world since last 40 years, is still at earlier phase in Nepal. This study was done to know the clinical practice of minimally invasive gynaecological surgeries in Minimally Invasive Diagnostic and Therapeutic (MIDAT) hospital.
Methods: A hospital based descriptive study was conducted in gynaecological department of MIDAT hospital over 16 months period from 1st Bhadra 2071 to 30th Poush 2072 (17th August 2014 to 14th January 2016) among 115 women who underwent minimally invasive gynaecological surgeries (MIGS). Patient demographics, types of surgeries, indications of laparoscopy and hysteroscopy, reason for laparoscopic conversion, complications of surgeries and hospital stay were analyzed.
Results: There were total 115 minimally invasive gynaecological surgeries done in MIDAT hospital during study period. Laparoscopic gynaecological surgeries and hysteroscopy were performed in 86 (75%) and in 29 (25%) women respectively. Among laparoscopy, laparoscopic hysterectomy {31 (36%)} was the more common operation. During laparoscopy, conversion to open was done in nine (10.5%) patients. Complications of MIGS were seen in three (3.5%) women.
Conclusions: MIGS has acceptable morbidity, smooth post operative recovery and shorter hospital stay. In recent time, MIGS is gradually becoming popular in Nepal.