bluuebunny/crossref_metadata_2025 huggingface dataset:
Stimulation Design and Treatment in the Sycamore Formation of the South Central Oklahoma Oil Province Area of the Anadarko Basin
Authors: Jackson James , Calvin James , Drake Brandon
Published: January 2018

The South Central Oklahoma Oil Province (SCOOP) and the Sooner Trend, Anadarko, Canadian, and Kingfisher (STACK) play areas of the Anadarko basin continue to grow and gain prominence. Perhaps the two most widely known formations in these areas are the Meramec and Woodford Shale; however, other formations also contain hydrocarbon potential. The objective here is to present an overview of the Sycamore formation and associated treatment design and discuss production analysis.

As development continues in both the SCOOP and STACK areas, more formations, such as the Sycamore, are being explored. Currently, development of this formation has been limited and minimal research has been published about this formation in recent years. Operators are now beginning to consider it for potential development for horizontal completions; therefore, it is important to develop a better reservoir understanding to apply appropriate technologies and more effectively complete wells drilled in this formation. Through analysis of studies conducted in the area of interest and data gathered about the formation, an appropriate stimulation treatment was formulated.

This paper discusses using several technologies, such as diversion and microproppant, in the fracture stimulation designs and the resulting impact on production for a well drilled in the Sycamore formation in Grady County, Oklahoma in the SCOOP area. The stimulation designs' components and technologies used were selected based on an understanding of the area. Successful completion techniques used in other formations were also incorporated into the stimulation designs. The production results from this particular well example are encouraging and are among the best in the area. The well's performance demonstrates the high degree of potential of the Sycamore formation.

This paper provides an overview of the Sycamore formation, completion and treatment design analyses, technologies used, petrophysical and formation evaluation studies conducted in the area, production analysis, and associated numerical and analytical modeling.
Mitigating Risks in Hydraulic Fracture Design for a Complex Carbonate Reservoir
Authors: Izadi Ghazal , Barton Colleen , Cruz Leonardo , Franquet Javier , Hoeink Tobias , Laer Pierre Van
Published: January 2018

We use advanced modeling techniques to optimize wellbore landing, completion configuration, and stimulation treatments in a complex carbonate reservoir in the Middle East. The reservoir, where target formations are highly laminated, naturally fractured, and stresses are transitional as a function of depth, presents conditions for which a more sophisticated stimulation design approach is required. A meticulous analysis of wellbore image logs and detailed forward modeling of the geometry of the drilling induced tensile fractures revealed that in situ stresses rapidly transition between strike-slip and reverse faulting as a function of depth. The log-derived geomechanical model was calibrated against wellbore failure observations, laboratory measurements, and mini-frac test results. The stresses and rock properties were mapped to the 3D reservoir volume assuming a horizontally layered formation. Models of hydraulic fracture propagation in the presence of natural fractures and laminations under vertically heterogeneous stress conditions were investigated using a 3D simulator that couples geomechanics, fracture mechanics, fluid behavior, and proppant transport. Modeling results reveal hydraulic fracture propagation is profoundly influenced by the complex stresses and structures in this reservoir. Simulation results indicate that vertical hydraulic fracture propagation (height, growth) is controlled by stress contrasts, stress state, elastic, and strength variations between adjacent formations, and the frictional strength of weak bedding discontinuities that are ubiquitous in tight formations. Results also show limited height growth within a reverse-faulting zone where modeling predicts a tendency for the development of horizontal limbs ("T-shaped" fractures). Hydraulic fracture geometry is significantly different in the presence of weak bedding compared to bedding with sufficient strength to transmit crack tip stresses across the interfaces. Significant amounts of fluid and proppant can be diverted into created horizontal fractures in this reservoir. Increasing fluid viscosity improves the propped surface area and controls the height growth within the zone of interest. Capturing such subsurface complexities and using them to simulate hydraulic fracture propagation helps us to improve treatment designs, reduce operational costs, and ultimately improve hydrocarbon recovery. This study illustrates that for more complex reservoirs where spatial heterogeneities, preexisting natural fractures, or transitional stress states are present, using advanced 3D modeling is essential. Through parametric stimulation modeling, design parameters can be refined to achieve optimal solutions to better manage the controllable drilling, completion, stimulation, and production parameters that present the primary risks to development in tight/unconventional reservoirs.
Mapping Proppant Distribution in Hydraulic Fractures in Cased Wellbores Using Low Frequency Downhole Electrical Measurements
Authors: Zhang Peng , Sen Mrinal K. , Sharma Mukul M. , Gabelmann Jeff , Glowka David
Published: January 2018

A tool concept using downhole electrical measurements for mapping electrically conductive proppant in hydraulic fractures is presented in this paper. The method relies on direct excitation of the casing, which overcomes the severe limitations of induction tools in cased wellbores. An array of insulating gaps is installed and cemented in place as a permanent part of the casing string. The electrical measurements are done by imposing a voltage across each insulating gap, one at a time, before and after hydraulic fracture operations. The voltages across other insulating gaps near the transmitter gap are recorded.

The proposed tool's response to the geometry of a single fracture was modeled by solving for the electrical potential using a finite volume method. Preliminary results have shown that the electrically conductive proppant alters the path of the electrical current in the formation and this is recorded as differential signals by the string of insulating gaps surrounding the source gap. The measured differential signals are highly sensitive to a fracture's location, size, and orientation, and less sensitive to the fracture shape. However, to enable the implementation of such a practical system, various aspects of the tool need to be further investigated. Following our previous work, this paper focuses on forward modeling of the tool's response to multiple fractures, which demonstrates the influence of these fractures to the signals and provides important guidance for inverse modeling. Parametric inversion of fractures from synthetic data, generated by exciting various insulating gaps, is solved by using Very Fast Simulated Annealing (VFSA).

Simulation results show that when multiple hydraulic fractures are present, the voltages measured at the receiver gaps are primarily determined by the geometry of the fracture, which is in direct contact with the excited section of casing. When two fractures touch the same casing section, they induce very similar voltages to those from a single fracture with equivalent conductance. Preliminary inversion results from synthetic data indicate that the proposed VFSA can solve for the multiple fractures' conductance and size at the same time, without requiring a large number of forward simulations. Even with noisy synthetic data, VFSA is able to make good estimates of the fractures' geometries. This indicates that the VFSA technique is a proper and robust inversion technique for the measured voltages at various receiver gaps.
Experimental and Numerical Investigation of Shear Stimulation and Permeability Evolution in Shales
Authors: Ye Zhi , Sesetty Varahanaresh , Ghassemi Ahmad
Published: January 2018

The shearing of pre-existing fractures plays an important role in the permeability enhancement of shale reservoirs during hydraulic fracturing or refracturing treatments. The process reactivates pre-existing fractures around a hydraulic fracture causing them to slip and dilate and can also cause fracture propagation in the shear and tensile modes creating secondary cracks resulting in increased permeability. However, laboratory data on fluid flow and fracture slip in reservoir rocks particularly shale rocks are rare, and the mechanisms of permeability evaluation with shear slip and dilation are still not well understood. In this work, we present the results of laboratory scale shear stimulation tests and numerical simulations to illustrate fracture permeability changes with fracture shear slip and complex network formation. Eagle Ford shale samples containing a natural fracture have been used to run triaxial shear tests and injection-induced shear tests. The multistage triaxial shear test has been performed to measure fracture mechanical properties including shear strength, friction angle, normal stiffness, and shear stiffness; the injection-induced shear test has been used to investigate fracture dilatant shear slip and the coupled permeability evolution. The multistage triaxial shear test show that this type of Eagle Ford fracture has a 37° friction angle, and average 1.39*106 psi/in. normal stiffness and 1.11*106 psi/in. shear stiffness. In the injection-induced shear test, we achieved 6 times increase in flow rate even with only a small induced shear sliding (<0.1 mm or <0.004 inch). Furthermore, permeability evolution during injection-driven shearing tends to linearly evolve with the shear slip and dilation. The irreversible behavior of shear slip was found to explain the permeability hysteresis during shear sliding. The relevant laboratory data has been used in numerical simulations to quantify the impact of shear slip along natural fractures during stimulation. This has been achieved using a newly developed complex fracture network model which robustly simulates hydraulic fracture propagation in a naturally fractured reservoir. The numerical results indicate that shear slip induced permeability enhancement in ultra-low permeability reservoirs is a critical component of stimulation particularly when most of the natural fractures are mechanically closed and may not be favorable for proppant placement.
Seismic Attributes Application for the Distributed Acoustic Szensing Data for the Marcellus Shale: New Insights to Cross-Stage Flow Communication
Authors: Ghahfarokhi Payam Kavousi , Carr Timothy , Song Liaosha , Shukla Priyavrat , Pankaj Piyush
Published: January 2018

Recently, oil and gas companies started to invest in fiber optic technology to remotely monitor subsurface response to stimulation. Distributed Acoustic Sensing (DAS) and Distributed Temperature Sensing (DTS) record vibration and temperature around the fiber, respectively. In this research, we introduce new seismic attributes calculated from the DAS data that could suggest cross-stage fluid communication during hydraulic fracturing. The DAS data covers the entire 28 stimulated stages of the lateral MIP-3H well close to Morgantown, WV. We calculated the energy attribute for the DAS data of the studied stages. Subsequently, a Hilbert transform is applied to the DAS data to evaluate the instantaneous frequency of each trace in the DAS. In addition, we applied a fast Fourier transform to each trace for all the SEGY files to calculate the dominant frequency with a 30 second temporal window. The dominant frequency is compared to the DTS data and energy attribute for the stages in the horizontal MIP-3H well. The DTS analysis shows that stimulation of the stages 10 causes a temperature rise in the previous stage 9; in contrast, stage 18 stimulation does not affect stage 17 temperature. We suggest that the common low frequency zone identified in instantaneous frequency and dominant frequency attributes between stages 10 and 9 is related to presence of fluid and gas that transferred cross-stage during hydraulic fracturing. The fluid and results in the frequency damping of the vibrations around the fiber. We show that the frequency attribute reveals increases detail about the stimulation than conventional signal energy attribute of the DAS data.
The Impact of Stress on Propped Fracture Conductivity and Gas Recovery in Marcellus Shale
Authors: El sgher Mohamed , Aminian Kashy , Ameri Samuel
Published: January 2018

It is commonly observed that the production rates from unconventional reservoirs decline rapidly as compared to conventional reservoirs. The net stress increases with the production because the pore (fluid) pressure decreases while the overburden pressure remains constant. This leads to the fracture compaction and conductivity impairment due to proppant embedment. Even though advances in technology have unlocked considerable reserves of hydrocarbon, the impact of the net stress changes on proppant conductivity, i.e. stress-dependent propped fracture conductivity, is not well understood.

The objective of this study is to investigate the impact of the net stress propped fracture conductivity from the horizontal wells with multiple hydraulic fractures completed in Marcellus Shale. A commercial reservoir simulator was used to develop the base model for a Marcellus Shale horizontal well. The model incorporated various storage and production mechanisms inherent in Shales i.e. matrix, natural fracture, and gas adsorption as well as the hydraulic fracture properties (half-length and conductivity). The core, log, completion, stimulation, and production data from wells located at the Marcellus Shale Energy and Environment Laboratory (MSEEL) were utilized to generate the formation and completion properties for the simulation model. MSEEL is a Marcellus Shale dedicated field laboratory and a research collaboration between West Virginia University, Ohio State University, The National Energy Technology Laboratory, and Northeast Natural Energy. Precision laboratory equipment was utilized to determine rock petrophysical properties such as permeability and porosity. Additionally, the natural fracture closure stress values were determined by an innovative experimental technique using core plug samples. The relation between fracture conductivity and the net stress were obtained from published studies (SPE 181867) on core plugs collected from Marcellus shale at two different locations. This relation was incorporated in the model to investigate the geomechanical impact of hydraulic fracture on the gas production. The model was used to perform a number of parametric studies to investigate geomechanical effects for fracture conductivity on gas recovery from Marcellus shale.

The production data from two horizontal wells at the MSEEL site, were utilized for production history matching both with and without geomechanical effects. The inclusion of the geomechanical effect in the model improved the predictions particularly at the early stages of the production. Simulation results show geomechanical effects of fracture conductivity on gas production performance for Elimsport and Allenwood samples, which were cut parallel and perpendicular to the bedding planes. Moreover, the results indicate that the geomechanical effects have a significant impact on gas production when the pressure in the vicinity of the well has declined.
Anaesthetic management of parathyroid crisis in a paraplegic patient during parathyroidectomy
Authors: Gu changping , Li Guanjun , Hou Ming , Feng Hai , Bi Yanbin , Wang Yuelan
Published: January 2018

Chronic renal failure is often accompanied by secondary hyperparathyroidism that can be effectively treated by parathyroidectomy. However, there is a risk of parathyroid crisis during the operation. A 64‐year‐old patient with paraplegia and chronic renal failure showed progression to hyperparathyroidism and developed parathyroid crisis during parathyroidectomy. Emergency treatment included rehydration, calciuresis, intravenous injection of vasoactive agents and bisphosphonate therapy to mitigate the life‐threatening complications of hyperparathyroid crisis. The case shows that special attention needs to be paid to paraplegic patients undergoing parathyroidectomy.
METER, FEEL, AND PHRASING IN WEST AFRICAN BELL PATTERNS: THE EXAMPLE OF ASANTE KETE FROM GHANA
Authors: Paulding Ben
Published: January 2018

This article offers an analysis of west African bell patterns, positioning them as an entry to musical analysis of west African drumming. How can bell patterns be used as a tool by researchers to establish meter? What information do they provide about the â€œfeelâ€ of the music? And finally, how do these patterns interact with the underlying meter and feel, and what does this reveal about phrasing in west African music? To answer these questions, this article examines the case of the dawuro iron bell in Asante Kete drumming from Ghana. A close analysis of the Kete dawuro bell pattern reveals that the Kete pattern may be represented in an â€œAfrican 12/8â€ or ternary-quadruple meter, emphasizes the importance of the half-time 2-feel embodying the Asante maxim of â€œnot hurryingâ€, and demonstrates the highly motile and â€œgoal-orientedâ€ phrasing exemplified in Keteâ€™s timeline patterns. To the broader west African and diasporic scholarly communities, this article presents a model for inferring meter, feel, and phrasing through close analysis of west African bell patterns.
KNOWLEDGE TRANSFER: INDIGENOUS AFRICAN MUSIC IN THE SOUTH AFRICAN MUSIC CURRICULUM
Authors: Carver Mandy
Published: January 2018

The need for redress in South African education includes calls for the decolonisation of the curriculum. In music education, this could imply a straight forward swap of content, replacing the â€˜hegemonicâ€™ Western classical canon with orally transmitted musical traditions in Africa. However, the picture clouds somewhat when the epistemological framework of the discipline of (Western) music is retained for the â€˜decolonisedâ€™ curriculum, as this results in a disjuncture between the practice of African music and the way it is understood on a conceptual level in the curriculum. Drawing on the theories of Basil Bernstein and Karl Maton, this article probes the nature of the knowledge articulated in the South African secondary school, the basis of its specialisation, and its potential to equip students with knowledge that allows boundary crossing.
Factors affecting equity mutual fund performance: evidence from Indonesia
Authors: Gusni  , Silviana  , Hamdani Faisal
Published: January 2018

The evaluation of equity mutual fund performance and identification factors that affect mutual fund performance is of great interest to an investor in Indonesia. This study investigates the performance of equity mutual fund by using risk-adjusted performance proposed by Treynor (1965) and examines factors affecting mutual fund performance by using the ability of investment manager (market timing and stock selection skill), fund size, and inflation. To achieve the objectives of this study, a total of 19 equity mutual funds was selected using purposive sampling method from the period from 2011 to 2015. A panel data analysis method has been used to analyze the effect of those factors on the equity mutual fund performance. The result showed that equity mutual fund performance tends to fluctuate in Indonesia. Equity mutual fund performance influenced by stock selection skill and inflation, meanwhile, market timing skill and fund size have no significant effect on the equity mutual fund performance.
Introducing modified version of penguins search optimization algorithm (PeSOA) and its application in optimal operation of reservoir systems
Authors: Mansouri Afshin , Aminnejad Babak , Ahmadi Hassan
Published: January 2018

In the current study, modified version of the penguins search optimization algorithm (PeSOA) was introduced, and its usage was assessed in the water resources field. In the modified version (MPeSOA), the Gaussian exploration was added to the algorithm. The MPeSOA performance was evaluated in optimal operation of a hypothetical four-reservoir system and Karun-4 reservoir as a real world problem. Also, genetic algorithm (GA) was used as a criterion for evaluating the performance of PeSOA and MPeSOA. The results revealed that in a four-reservoir system problem, the PeSOA performance was much weaker than the GA; but on the other hand, the MPeSOA had better performance than the GA. In the mentioned problem, PeSOA, GA, and MPeSOA reached 78.43, 97.46, and 98.30% of the global optimum, respectively. In the operation of Karun-4 reservoir, although PeSOA performance had less difference with the two other algorithms than four-reservoir problem, its performance was not acceptable. The average values of objective function in this case were equal to 26.49, 23.84, and 21.48 for PeSOA, GA, and MPeSOA, respectively. According to the results obtained in the operation of Karun-4 reservoir, the algorithms including MPeSOA, GA, and PeSOA were situated in ranks one to three in terms of efficiency, respectively.
Taxa fotossintética em macieiras tratadas com metamitron
Authors: GABARDO Gentil Carneiro , PETRI José Luiz , HAWEROTH Fernando José , COUTO Marcelo , KRETZSCHMAR Aike Anneliese , SANTOS-E-SILVA Carlos Davi
Published: January 2018

Metamitron (MM) um herbicida que inibe a fotossíntese, foi, recentemente, relatado como efetivo para raleio de pós floração em macieira, porem pouco se sabe sobre o seu período de interferência sobre a taxa fotossintética e possíveis interferências no desenvolvimento dos frutos após sua aplicação. O objetivo deste estudo foi avaliar a resposta da aplicação diferentes concentrações de MM, na taxa fotossintética, índice de clorofila, taxa de crescimento e redução da frutificação em macieiras ‘Fuji Suprema’ e ‘Maxi Gala’. O experimento foi conduzido em pomar experimental no município de Caçador, SC, na safra 2014/2015. O delineamento experimental foi em blocos casualisados com quatro tratamentos (0ppm, 350ppm, 700ppm e 1050ppm de MM) e cinco repetições de uma planta, aplicados na fase em que os frutos se encontravam com diâmetro entre 20mm e 25mm, em ambas as cultivares. As variáveis analisadas foram: taxa fotossintética, índice de clorofila, taxa de crescimento dos frutos e redução da frutificação. Independentemente da concentração de MM aplicada se observou redução da taxa fotossintética em ambas as cultivares de macieira avaliadas. A aplicação de MM não promoveu a queda de frutos, independentemente da concentração aplicada, devido a época de aplicação tardia, porém afetou o crescimento dos frutos na ‘Maxi-Gala’. Aplicações foliares de MM em macieiras ‘Maxi Gala’ e ‘Fuji Suprema’ reduzem a taxa de fotossíntese de forma proporcional a sua concentração.
Programação Oficial 3o SiGA - Territórios Hídricos e Mercados Ambientais
Authors: Costa Erli Schneider
Published: January 2018

Programação Oficial 3o SiGA - Territórios Hídricos e Mercados Ambientais
Caracterização da produção artesanal de queijo colonial na região do Vale do Taquari
Authors: DALTOÉ Vanessa Cristina Bouvié , KOLCHINSKI Eliane Maria , PADILHA Rosiele Lappe , BIONDO Elaine , SANT'ANNA Voltaire
Published: January 2018

A produção artesanal de queijo colonial em municípios do Vale do Taquari é uma herança cultural dos imigrantes italianos. O presente trabalho teve por objetivo iniciar a contextualização do processo histórico e descrever as características da produção artesanal do queijo colonial em municípios da região do Vale do Taquari. Para compreender o contexto histórico da produção artesanal de queijo colonial, optou-se pela pesquisa qualitativa com viés etnográfico. A pesquisa envolveu três produtores artesanais de queijo colonial, dois produtores do município de Encantado e um produtor do município de Relvado, aqui denominados A, B, e C, respectivamente. Através dos relatos foi possível constatar que o processamento do queijo colonial é uma herança cultural, passada de geração em geração pelas matriarcas.  Atualmente, a atividade continua sendo desenvolvida com exclusividade pela mulher, contudo, não foi observada a perpetuação do saber-fazer para as filhas ou outros familiares. A descrição do processo de fabricação artesanal de queijo colonial foi semelhante entre as produtoras que participaram do presente estudo sendo possível estabelecer um fluxograma básico das etapas envolvidas no processamento. Observou-se que, apesar da disponibilidade de queijos no mercado formal, a procura por produtos coloniais é constante preservando assim a diversidade, o saber-fazer e o modo de vida, contribuindo para a valorização dos produtos coloniais e, consequentemente, para a permanência das famílias no meio rural. Ressalta-se ainda que o presente trabalho compõe o início do processo de caracterização da produção artesanal de queijo colonial na região do Vale do Taquari com margem para a elaboração de inúmeros trabalhos.
Estudo de um consórcio de microalgas na remoção de nutrientes de efluentes de curtume
Authors: PENA Aline de Cassia Campos , FONTOURA Juliana T. da , TRIERWEILER Luciane F. , GUTTERRES Mariliz
Published: January 2018

A microalgas se multiplicam rapidamente em águas ricas em nutrientes ou eutrofizadas, principalmente com altas cargas de fósforo e nitrogênio. Algumas pesquisas têm buscado por espécies capazes de crescer em efluentes industriais explorando as vantagens das microalgas em remover os nutrientes dos efluentes e gerar biomassa com valores agregados. O presente trabalho teve como o objetivo testar um consórcio de microalga no tratamento de efluente de curtume. Foi acompanhado o crescimento das microalgas no efluente e a remoção de nutrientes associada a este processo. O consórcio se mostrou eficiente acarretando remoções de Nitrogênio e Fósforo de 88,61% e 92,58%, respectivamente e foi possível isolar uma cultura unialgal do microrganismo mais representativo.
Educação ambiental como perspectiva de redução do descarte de resíduos sólidos e rejeitos nos ambientes costeiros
Authors: MACIEL Francine de Oliveira , KISCPORSKI Priscilla da Silva , COSTA Erli Schneider
Published: January 2018

O descarte inadequado de resíduos sólidos e rejeitos é um dos principais problemas que atinge os ambientes costeiro e marinho. Materiais sintéticos de difícil decomposição como os derivados do petróleo podem prejudicar organismos marinhos e influenciar na presença de turistas no litoral. Este trabalho teve com objetivo, por meio de ações de educação ambiental, sensibilizar os veranistas na praia de Torres (RS) sobre as consequências do descarte indevido de resíduos sólidos no ambiente marinho e costeiro. Os resultados sugerem que grande parte da população litorânea (residentes e/ou turistas) desconhece o impacto ambiental gerado nos ecossistemas marinhos pelo excesso de resíduos sólidos e rejeitos antrópicos.
Equation to Fat Percentage Estimation in Women with Reduced Bone Mineral Density
Authors: Oselame Cristiane da Silva , Oselame Gleidson Brandão , de Matos Oslei , Neves Eduardo Borba
Published: January 2018

Introduction:

The measurement of body fat is a way to obtain information about the characteristics that can lead to a framework of certain diseases. Thus, women in postmenopausal period experience significant variations in the body composition and fat distribution.

Objective:

To develop an equation to estimation of the body fat percentage in women with osteopenia / osteoporosis based on anthropometric measurements easily obtainable.

Methods:

The sample consisted of 74 women participating in the study group of the Physical Exercise Program for Osteoporosis Federal Technological University of Paraná, all in postmenopausal period and with osteopenia or osteoporosis. It evaluated body composition and bone mineral density by absorptiometry Radiological Dual Energy (DXA), anthropometry and body circumferences (waist, abdomen and hips), and nutritional status by the Body Mass Index (BMI) as the World Health Organization classification.

Results:

The sample can be characterized by the following average data: age of 59.32 ± 6.96, 27.14 ± 3 BMI 90, Waist Hip Ratio of 0.85 ± 0.08 and Body fat percentage 40.35 ± 4.04. The proposed equation was Body Fat Percentage (BFP) = 14,419 + (0.405 x BMI) + (0.147 x HC) using only two predictor variables, BMI and hip circumference (PQ).

Conclusion:

The standard error of estimate of the proposed equation was 2.89 (R2 = 0.501) can be considered low average values for the percentage of fat in this population, suggesting that the equation can be used to estimate the percentage of body fat in postmenopausal women.
Relationship Between Knee Valgus and Ground Reaction Force in Soccer Players Using Soccer Boots Landing on an Official Artificial Turf
Authors: Claudino João Gustavo , Mezêncio Bruno , Soncin Rafael , Pennone Juliana , Pinho João Pedro , Borges Eduardo , Castiglio Leonardo , Miyashiro Pedro Sampaio , Pomi Eric , Masuko Wellington , Soares Vinicius , Dias Paulo , Goés Luiz Henrique , Piazzi Alessandro Fromer , Amadio Alberto Carlos , Serrão Júlio Cerca
Published: January 2018

Introduction:

There is a high incidence of Anterior Cruciate Ligament (ACL) injuries in soccer and 37% of this happens during landing after a jumping event. The measure of valgus knee moment during landing of a Drop Jump (DJ) has been considered a gold standard test to predict the risk of ACL injury in young athletes. Furthermore, researchers have used 2D frontal angle of the knee trying to make a practical tool to evaluate this injury risk, however, to the best of our knowledge, there is no studies about the relationship between mechanical load and 2D dynamic knee valgus parameters.

Purpose:

To verify the relationship between kinetics and kinematics ACL injury risk factors: the GRF and the a) peak knee valgus; b) valgus knee displacement in soccer players wearing soccer boots landing on an official synthetic turf.

Methods:

Twenty Brazilian soccer players, 15-17 years old, with 176.6 ± 6.4 cm of height and 67.4 ± 8.1 kg of body mass participated in this study. Following familiarization, subjects performed the DJ from a height of 40 cm. They landed on two force plates synchronized with Vicon system for kinetic and kinematic analyses, respectively.

Results:

Only valgus knee displacement (-1.4 ± 7.0 °) and antero-posterior component of GRF (-0.402 ± 0.097 BW) presented a significant relationship (r = 0.353; p = 0.025).

Conclusion:

There is a significant correlation between knee valgus displacement and GRF antero-posterior component for soccer players in an official artificial turf using soccer boots.
Modelando la relación entre el ingreso agregado y las emisiones de dióxido de carbono en los países en desarrollo: El caso de la República Dominicana
Authors: Sánchez-Fung José R.
Published: January 2018

La investigación estima la relación entre el ingreso agregado y las emisiones de dióxido de carbono para la República Dominicana. El análisis econométrico emplea series estadísticas que abarcan medio siglo y produce evidencia sobre la curva de Kuznets para el medio ambiente natural, mostrando que el nivel de ingreso per cápita anual alrededor del cual las emisiones de dióxido de carbono se estabilizan es US$1,600. Las estimaciones contribuyen con la literatura que sugiere la existencia de una curva de Kuznets más plana y desplazada hacia la izquierda.
El computador como determinante del acceso a Internet en hogares de la República Dominicana
Authors: Gómez Mazara Fabricio
Published: January 2018

La literatura relevante sobre los impactos del uso de Internet en el bienestar de los hogares ha identificado dos problemas centrales: el primero, denominado “doble causalidad” o “causalidad simultánea”, parte del principio de que el uso de Internet estaría determinado por un conjunto de indicadores de bienestar, tales como el ingreso familiar y el nivel educativo del jefe o de la jefa de hogar. En este trabajo se utilizó un modelo econométrico de probabilidad respecto de hogares que tienen o no computador y acceso a Internet. Los resultados confirman que variables como el ingreso, la educación y las zonas rurales / urbanas son determinantes claves de la difusión de las TIC.
Identificando exportaciones dominicanas sensibles al Tratado Trans-Pacífico (TTP)
Authors: Isa Contreras Pável
Published: January 2018

El Tratado Trans-Pacífico (TTP), un propuesto mega-acuerdo económico entre 12 economías del mundo, siete de Asia y cinco de América, tendría el potencial de desplazar del mercado estadounidense las exportaciones originarias de terceros países, como la República Dominicana. Este análisis identifica las exportaciones dominicanas hacia Estados Unidos que, por su importancia para el país, por las Ventajas Comparativas Reveladas de esos productos de países socios de Estados Unidos en el TTP, y por las barreras arancelarias que serían desmontadas como resultado del acuerdo, podrían ser sensibles al mismo. Se concluye que un total de 13 partidas arancelarias podrían ser afectadas y cinco países podrían ser beneficiarios. No obstante, casi la totalidad del efecto desplazamiento se concentra en prendas de vestir y Vietnam sería el gran beneficiario. El efecto específico sobre las exportaciones dominicanas podría ser muy pequeño porque el efecto global también lo es y se distribuiría entre un gran número de países suplidores.
Construyendo Sistemas de Monitoreo y Evaluación Eficaces para Proyectos de Educación: Experiencias del Proyecto Leer
Authors: Mencía Ripley Aída , Ruíz-Matuk Carlos , Sánchez-Vincitore Laura V.
Published: January 2018

Los proyectos locales en materia educativa son cada vez más numerosos y ambiciosos en su alcance. Dichos proyectos presentan oportunidades idóneas para diseñar intervenciones efectivas, sistematizarlas y producir un alto volumen de trabajos científicos. Para ello, es crucial crear sistemas robustos de medición que permitan la toma de decisiones basadas en evidencia, la corrección de aspectos de la intervención que no se comportan de la manera esperada, y la medición misma del impacto del proyecto. Este abordaje permite realizar proyectos educativos efectivos, apegados a la ética y la protección de poblaciones vulnerables.
Eugenio María de Hostos en tiempos líquidos: la vigencia de su pensamiento social
Authors: Cabrera Collazo Rafael L.
Published: January 2018

Analizar resumen según el género.
Sarcóide recidivante em glande de um equino: Relato de caso
Authors: De Abreu Daniel , Eloy Nunes da Cunha Marta , Moura Ferreira Margareth , Luiz de Araújo Anderson , Caribé Ayres Maria Consuêlo , Viana Menezes Roberto
Published: January 2018

Sarcoids are fibroblast and non-metastatic skin tumors, representing the most common tumors in horses. Its etiopathogenesis is related to bovine papillomavirus type 1 and type 2 infections, being the transmission and dissemination to other parts of the body of the same animal associated with bites, friction, fomites and insects. Clinical behavior is locally aggressive due to infiltrative capacity, as well as being refractory to different forms of therapies. The sarcoids are classified in six forms according to their clinical presentations, being these: hidden, verrucous, nodular, fibroblastic, mixed and malignant. The objective of this study is to report a clinical case of recurrent sarcoid in the equine glans, attended at the equine clinic of the Centro de Desenvolvimento da Pecuária of the Universidade Federal da Bahia, located in the municipality of Santo Amaro – BA. In the present case, an equine presented a tumor mass in the region of the glans, where a mass examination and histopathological examination were carried out; characteristics compatible with the sarcoid were observed. After five months of surgical intervention, the sarcoid presented recurrence with treatment instituted with an association between partial penectomy, ointment based on acyclovir 5% and autohemotherapy.
OS EMPREENDIMENTOS DE FEIRAS LIVRES DO MUNICÍPIO DE SANTA MARIA/RS – CARACTERIZAÇÃO E SUSTENTABILIDADE
Authors: Silva Andrea Da , Haetinger Claus
Published: January 2018

As feiras livres têm uma grande importância para a comunidade local, ao homem do campo e à agricultura familiar, pois se apresentam como um caminho de desenvolvimento e fortalecimento da cadeia produtiva. O presente artigo busca caracterizar os empreendimentos de feiras livres do município de Santa Maria/RS, e averiguar sua sustentabilidade sob os aspectos - social, econômico e ambiental. Os procedimentos metodológicos adotados foram a pesquisa documental e o estudo de campo, ocorrido no período de outubro de 2015 a janeiro de 2016, em nove feiras livres, valendo-se das técnicas de entrevista e observação in loco. A análise aponta entre os principais resultados: i) predomínio de feirantes oriundos de uma agricultura convencional, que conta com a força de trabalho familiar; ii) desinteresse do jovem pelo trabalho do campo; iii) feirantes que, na sua maioria, admitem o uso de insumos químicos no processo de cultivo de alimentos; iv) falta de assistência de técnica e de orientação por parte do poder público e de entidades ligada ao setor; v) infraestrutura carente e inadequada de trabalho dos feirantes, além de problemas no cumprimento das normas higiênico-sanitárias. Conclui-se, a necessidade de melhor organização, formação e assistência técnica aos feirantes, pois requer melhorias no trabalho, na produção e no comércio, e consequentemente, uma ação mais efetiva para o fortalecimento da agricultura familiar e da atividade laboral do feirante; assim como, a necessidade de um programa de qualificação às feiras livres, para que possa assegurar sua continuidade e espaço mercadológico.
ESTIMATIVA DA EROSÃO LAMINAR NA BACIA HIDROGRÁFICA DO RIBEIRÃO JOÃO LEITE – GO A PARTIR DE ANÁLISE ESPACIAL DE DADOS
Authors: Ribeiro Silva Elaine Eluizy , Lopes Estéfane Silva , De Sousa Luana Regina Pires , Macedo Marina Alberti , Bolina Cecília De Castro , Gomes Marcelus Isaac Lemos
Published: January 2018

No ano de 2009 foi construída a barragem do Ribeirão João Leite, localizada na região central do Estado de Goiás, obra que garante parte do abastecimento de água da população de Goiânia-GO e região metropolitana por 25 anos. A tendência de crescimento populacional a ser atendida por esta barragem indica a necessidade de preservação da qualidade da água distribuída a seus consumidores. Baseado neste fato, o presente estudo tem o objetivo de quantificar a perda de solos por erosão laminar na bacia hidrográfica do Ribeirão João Leite, no ano de 2011 para verificar o potencial de erosão no manancial. A perda de solo foi estimada de forma quantitativa por meio da Equação Universal de Perda de Solos, utilizando para tanto, um Sistema de Informações Geográficas ArcGis 9.3 para processamento, tratamento e produção de informações. O cálculo feito através desta Equação foi realizado por meio da inclusão de um algoritmo para o cálculo automatizado dos fatores topográfico, de potencial natural à erosão laminar, de perda de solo por erosão laminar, e comprimento de rampa. O Sistema de Informações Geográficas se mostrou altamente eficiente no sentido de possibilitar a obtenção de informações macros de forma rápida. O resultado obtido mostrou que 74,01% da área da bacia possuem fraco potencial e 25,99% da área da bacia possui moderado a forte potencial a erosão, necessitando assim, de práticas conservacionistas para evitar erosões mais acentuadas.
ANÁLISE DO DESEMPENHO DO PROCESSAMENTO DE ERVA-MATE NO ARRANJO PRODUTIVO LOCAL ALTO TAQUARI – RS
Authors: Chechi Leticia Andrea , Silveira Caroline Soares da , Schultz Glauco
Published: January 2018

O Polo Ervateiro do Alto Taquari - RS é um importante produtor e beneficiador de erva-mate no Estado e a nível nacional. A problemática deste trabalho se refere a importância do fornecimento local de matéria-prima, equipamentos, relações estabelecidas e mão de obra no desempenho produtivo deste APL ervateiro. Nesse contexto, o objetivo do estudo é discutir a dinâmica de processamento da erva-mate no APL ervateiro do Alto Taquari, através de características produtivas locais, e a relação destas com os resultados apresentados pela matriz importância-desempenho. A pesquisa foi realizada no polo ervateiro do Alto Taquari – RS, mais especificamente nos municípios de Ilópolis, Arvorezinha, Anta Gorda e Putinga, no segundo semestre de 2015 e no segundo semestre de 2016, sendo entrevistados 35 gestores de ervateiras e 6 agentes locais. Os resultados mostraram que os fatores de produção como custo e qualidade da matéria-prima, custo e capacitação da mão de obra, disponibilidade de assistência técnica são considerados adequados no APL, em relação à sua importância e desempenho. Os fatores que necessitam de ações para o seu melhoramento, como disponibilidade de matéria-prima e de mão de obra, revelam a característica de relações específicas em uma mistura de cooperação e competição, enquanto o custo de aquisição e porte e capacidade de maquinários, sugere, de acordo com a pesquisa realizada, ser uma dificuldade desta tipologia de arranjo. Conclui-se que, com a maioria dos fatores analisados alocados na zona adequada da matriz importância - desempenho, o processamento da erva-mate no Alto Taquari é considerado satisfatório.
UNIDADES DE CONSERVAÇÃO E COMUNIDADES LOCAIS: GESTÃO DE CONFLITOS E INSTRUMENTOS DE PARTICIPAÇÃO
Authors: Miranda da Silva Matheus , Ferreira dos Santos Isadora , Canuto Silva Fernanda Rafaela , Palhares Teixeira Camila
Published: January 2018

O debate conservacionista em torno da criação e implantação de áreas protegidas tem ganhado força nas últimas décadas. A visão de um ambiente intocável, separado do homem, proporcionou, às unidades criadas a partir do modelo aplicado desde a criação do Yellowstone National Park, a necessidade de iniciar processos de expulsão dos habitantes que nela residiam, gerando enormes conflitos com esta população. Este artigo tem por objetivo analisar as relações entre as unidades de conservação e as comunidades que nela sustentam-se, a partir do levantamento de pontos de colisão de interesse e dos instrumentos legais para a inserção das comunidades locais na vida e tomada de decisões nas unidades de conservação. Uma metodologia exploratória-descritiva baseou esta pesquisa, por meio do desenvolvimento de uma pesquisa bibliográfica sobre os aspectos relevantes à temática. A partir do levantado, elucidou-se a situação dos conflitos entre a implantação de unidades e as populações locais, e o potencial da aplicação de ferramentas de participação na integração das comunidades na gestão das áreas protegidas, considerando-se todo o contexto político-histórico e demandas da região.
FORMAÇÃO COM PROFESSORES DE EDUCAÇÃO BÁSICA UTILIZANDO A RELAÇÃO DE MENTORING INTEGRANDO RECURSOS TECNOLÓGICOS NO PLANEJAMENTO DE AULAS
Authors: De Aguiar Reinaldo Pereira , Quartieri Marli Teresinha
Published: January 2018

Este artigo vem socializar contribuições que ocorreram no planejamento da prática pedagógica de professores, do Ensino Médio e dos Anos Finais do Ensino Fundamental em São Francisco do Conde no Estado da Bahia, utilizando-se a relação de mentoring com o uso de recursos tecnológicos. A pesquisa que tem a temática de formação de professores, com cunho qualitativo, caracterizada como um estudo de caso, sendo utilizados os seguintes instrumentos de coleta de dados: entrevistas, questionários e observação participante. Os resultados constatados foram: a) Uso do aparelho móvel do celular como alternância à insuficiência, e até mesmo inexistência ao recurso tecnológico do computador; b) Mentoring pode auxiliar na integração de recursos tecnológicos no planejamento pedagógico; c) Uso do recurso tecnológico da rede social – o blog – construído para uma das Escolas. Assim, o desenvolvimento desse trabalho oportunizou ao pesquisador e pesquisadas na busca de novas práticas pedagógicas e um ensino-aprendizagem diferente.
PEDAGOGIA EMPREENDEDORA NA UNIVERSIDADE: DIVERSAS PERCEPÇÕES
Authors: Silva Deborah Breda , Henz Fernanda , Martins Silvana Neumann
Published: January 2018

A nova configuração de mundo, globalizado e tecnológico, exige sujeitos empreendedores, proativos, dinâmicos, estrategistas, cooperativos, que saibam arriscar, ousar e inovar a fim de atender às constantes mudanças e a exigência de profissionais capazes de utilizar sua criatividade para gerar inovação. Nesse sentido, o papel que a universidade desempenha é complexo, e deve visar o acompanhamento do dinamismo da contemporaneidade. Assumir esse papel de formação de indivíduos com perfis diferenciados necessita da quebra da postura de ensino tradicional, e a busca por novas formas de ensinar e de aprender. A educação transformadora propicia ambientes de ensino e de aprendizagem favoráveis à formação desses novos sujeitos, que sejam empreendedores e protagonistas em relação a sua aprendizagem, de forma que saibam lidar com as demandas impostas pelo mercado de trabalho, pelo seu contexto social e pela sua própria vida. A Pedagogia Empreendedora, associada às Metodologias Ativas, surgem com um primeiro passo potencializador para a mudança do sistema de ensino. Com o objetivo de atender a esse novo fazer pedagógico e a melhoria do ensino, este estudo traz para reflexão a percepção de acadêmicos em relação ao desenvolvimento da pedagogia empreendedora nas aulas de graduação. De modo geral, percebeu-se que os métodos ativos de ensino propostos por esta metodologia favoreceram o ambiente de aprendizagem, à medida que permitiu que os estudantes se tornassem mais ativos, criativos e empreendedores. Os resultados apontaram que, na percepção dos sujeitos participantes desta pesquisa, a pedagogia empreendedora e as metodologias ativas promoveram evolução no aprendizado e crescimento pessoal.
SITUACIÓN Y DESAFÍOS DE LA FORMACIÓN Y CAPACITACIÓN DE DOCENTES
Authors: Pereira Vilmar Alves
Published: January 2018

Este artículo fue producido a partir de mi participación en el III Foro Internacional de Formación y Desarrollo Docente desde “la innovación y creatividad para la educación integral y de calidad”, organizado por el Ministerio de Educación de Nicaragua – MINED- en la ciudad de Managua. De esta forma, el trabajo que aquí presento en forma de narrativa discute los desafíos de la formación docente en torno de la siguiente sistematización: en un primer momento establezco problematizaciones sobre el contexto actual y la lógica neoliberal en la educación. Aproximo a esa problematización más cuestionamientos sobre la formación política del educador popular y los compromisos que conlleva; un segundo momento, presento fundamentos teóricos sobre el paradigma de Educación que está internalizado en nuestra trayectorias formativas y nuestra constitución docente (Paradigma Positivista); en el tercero presento desafíos de la formación docente teniendo por referencia el contexto actual brasileño de golpe político con sus implicancias directas de encogimiento de derechos en la educación y el contexto nicaragüense de ampliación de derecho a la educación, de protagonismo de los sujetos y de abertura democrática en el sentido de las posibilidades de una educación libertadora.