bluuebunny/crossref_metadata_2025 huggingface dataset:
Guest Editorial: Why Can’t We Apply Advanced Technologies More Often to Vertical Wells in Mature Fields?
Authors: Hull Rob
Published: July 2017

Guest editorial

When I started working in the oil and gas business in the 1970s, we spent a great deal of time designing vertical wells. The horizontal well was by and large a far-fetched idea on everyone’s wish list—the capability to have a completion go through the sweet spot was almost too good to be true. Fast forward to 2017 and we are now drilling horizontals everywhere, surpassing drilling times again and again.

But what about vertical wells, are we not still drilling those? The answer is “Yes, we are.” From 2011 to 2016, the industry drilled 117,624 vertical wells in the United States while, in that same time frame, it drilled 84,200 horizontals.

The fact is, vertical wells still have several key applications: They are typically used as the preliminary wellbore in exploration, production, and acreage delineation, and can be used for infill drilling, injection, and disposal.

So, can we not apply advanced technologies more often to mature vertical wells? We can, but two factors need to be considered when doing so—technology and cost.

First, embracing advanced technologies. Some energy and production companies lead the way in innovation while others are more risk-adverse. Regardless, new technologies are consistently being developed, refined, and eventually adopted more broadly.

For example, vertical injection wells can be refractured using more advanced diversion technology, ultimately extending the life of the well or even potentially adding more reserves. Or we can accurately apply acid in a vertical well to establish better communication with a reservoir. Such applications are now part of the mature field landscape, but the widespread adoption of newer technologies often moves at a glacial pace.

The second factor is cost. We know that the application of advanced technologies can prolong the life of mature fields, but it has to be done cost-effectively. Mature fields are exceptionally cost-sensitive, and any high-dollar application must yield acceptable returns: You are not going to pump an expensive chemical into a well for a 0.5% return—it just does not make sense.

Looking ahead, the well intervention market for mature fields will be demanding more and more of our attention. By 2019, it is expected to be in the range of USD 13 billion per year globally.
Technology Update: Real-Time, Single-Run CT System Provides Selective Perforating and Activation
Authors: Altinkopru Teoman
Published: July 2017

Technology Update

Deeper boreholes and longer, more deviated laterals are driving an evolution in well intervention operations, opening opportunities for the industry to develop challenging wells in new frontiers as intervention capability expands to support the most complex wells and completions.

From a service company standpoint, this phenomenon has challenged the industry to make continued improvements in the delivery of well intervention services and technologies to meet the needs of customers and do the job right, the first time. Development of advanced equipment, such as coiled tubing (CT) and other downhole tools that transmit critical data and measurements in real time, is helping operators move into these new arenas and produce from wells that once would have been inaccessible to intervention methods.

By far the most used and exposed piece of equipment in the oil field, CT has been a critical tool in moving well intervention services forward. The need for accurate, real-time data in CT operations will continue to be a key driver for further innovation. Downhole tools that can provide real-time information on depth, pressure, and temperature and depth correlation are critically important and represent a significant change from the requirements of 10 or 20 years ago in shallow, vertical wells, where a 0.1% discrepancy was acceptable.

For example, intervention in an offshore well of more than 20,000 ft requires better resolution and greater accuracy in the critical parameters, such as depth, pressure, and the specific activity of the CT than intervention in shorter wells in less challenging settings.

In this situation, a stimulation treatment to increase the productivity of a well with lower drawdowns on the reservoir can take 2 or more days to run in and out of the hole. Traditionally, operators have used surface measurements to infer the depth from length measurements, with little information and control over what the CT is doing downhole. In a difficult horizontal well, reliance on those assumptions can very easily lead to discrepancies in measurements and inaccurate decision making.

Schlumberger made a conscious decision more than 10 years ago to focus on developing high-tech sensors that provide real-time downhole measurements for greater accuracy. Today, tools that deliver the capability to digitally operate key well intervention services and equipment are aiding rig crews in conducting efficient, safer well interventions.
Collapse Analysis of Perforated Pipes Under External Pressure
Authors: Carpenter Chris
Published: July 2017

This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 184946, “Collapse Analysis of Perforated Pipes Under External Pressure,” by K. BeltrÁn and T. Netto, Federal University of Rio de Janeiro, prepared for the 2017 SPE Latin American and Caribbean Mature Fields Symposium, Salvador, Bahia, Brazil, 15–16 March. The paper has not been peer reviewed.

This work is a study of collapse pressure of perforated pipes to evaluate the effect of lateral perforations on the radial resistance of pipes under external pressure. These types of pipes represent a simple and economical technology widely used as sand-control meshes or perforated liners.

Introduction

One of the most common challenges to high flow rates in mature fields is the migration of sand to the well. High rates of oil production together with maximum sand retention is the optimal result. In accomplishing this complex goal, perforated pipes play a vital role because they are a simple and inexpensive application, and they are widely used in the industry. Failures of such pipes are directly related to the collapse resistance of a pipe weakened by the perforations. Such failures can occur because of the plugging of holes or changes in differential pressure. This study might contribute to future prediction of collapse pressures of perforated pipes without resorting to costly full-scale experiments.

Methodology Development

Geometric Properties. This study involves four intact and eight perforated specimens as study bodies. All of them were obtained from four pipes designated as T3, T4, T5, and T6. A special nomenclature was defined to identify each one with a sequence of letters and numbers. An explanation of this nomenclature is shown in Fig. 1.

The geometrical properties were obtained by means of a physical mapping, taking 10 measurements in the longitudinal direction and five in the circumferential direction to calculate the average thickness, average diameter, and initial imperfections (ovalization and eccentricity) of each specimen.

Material Properties. The mechanical properties were also determined for each specimen by means of traction tests on 18 proof bodies, including some in the longitudinal direction and others in the circumferential direction. After processing the results, the average curves and values for the mechanical properties for each tube were defined. Because of the remarkable differences in shape and behavior of the curves, an average curve was calculated also. The results of monotonic traction tests in the circumferential direction are shown in Table 4 of the complete paper, and the plots are shown in Figs. 3 and 4 of the complete paper.
Technology Focus: EOR Operations (June 2017)
Authors: Goodyear Stephen
Published: July 2017

Technology Focus

When I started editing this section in 2015, the year after the oil-price crash, many industry commentators were predicting a strong recovery in oil price by now; instead, the concept of “lower for longer” has become the present reality. Now, many commentators expect a shortfall in supply by the mid-2020s and the effect of shorter-cycle shale oil developments to be just two of the factors affecting price in the future.

Sometimes, I hear the view that, without high oil prices, enhanced oil recovery (EOR) does not have a place in the mix of projects delivering the new production needed over the next decade. However, high oil prices are not the whole story. High oil prices may cause an over-heated market that squeezes the value from EOR. By their nature, EOR projects are often longer-term investments, so investing in new EOR projects at a time when real-term costs are at their highest (pushed by the high oil price) may not be the best strategy.

Significant progress in cost reduction has been made in the industry following the price downturn, not only in the direct cost of construction and operations but also through a determined drive to simplify and streamline new projects in concepts selected for facilities and wells. Through this competitive scoping, project economics can be improved to deliver more-robust investment opportunities.

The discipline of a lower-for-longer world can create the conditions in which long-term investment decisions can be made. In the mix of new projects needed to fill any production shortfall in the coming decade, brownfield improved and enhanced oil recovery can compete with the alternatives available to the industry.

SPE continues to play an important role in sharing best practices to allow the industry to reap the benefit of project learnings, and I hope you find that the selected papers and recommended reading provide useful insights.

Recommended additional reading at OnePetro: www.onepetro.org.

SPE 180755 Enhanced SAGD Startup Techniques for Improved Thermal Efficiency and Conformance—A Field-Test-Based Investigation by J.M. Dragani, Cenovus Energy, et al.

SPE 180739 Results of a Polymer-Flooding Pilot in the Tambaredjo Heavy-Oil Field, Suriname by E. Delamaide, IFP Technologies, et al.

SPE 183362 Successful Flood-Front and Breakthrough Prediction of Miscible WAG in a Complex Carbonate Reservoir—A Case Study by Z.U.R. Qureshi, ADCO, et al.
Overview of Carbon Dioxide Injection and Water-Alternating-Gas Sensitivity
Authors: Wilson Adam
Published: July 2017

This article, written by Special Publications Editor Adam Wilson, contains highlights of paper SPE 179569, “Overview of CO2 Injection and WAG Sensitivity in SACROC,” by Reza Barati Ghahfarokhi, SPE, The University of Kansas, and Steve Pennell, Michael Matson, SPE, and Mark Linroth, SPE, Kinder Morgan, prepared for the 2016 SPE Improved Oil Recovery Conference, Tulsa, 11–13 April. The paper has not been peer reviewed.

This paper presents an overview of the SACROC Unit’s activity focusing on different carbon dioxide (CO2) injection and water-alternating-gas (WAG) projects that have made the SACROC unit one of the most successful CO2 injection projects in the world. The main objectives of this were was to review CO2 injection and injection-rate losses with respect to the CO2/WAG miscible displacement process in the SACROC Unit and recommend an injection strategy for WAG-sensitive patterns.

Introduction

The Kelly-Snyder field is the largest of a chain of fields along the Pennsylvanian Horseshoe atoll in the Midland Basin. Within this field, the Scurry Area Canyon Reef Operators Committee (SACROC) Unit covers approximately 56,000 acres with 2,800 million STB of original oil in place (OOIP). Limestone is the dominant mineral within the Canyon Reef formation, and less than 3% of the formation exists as thin sections of shale (1–10 ft in thickness) that are important stratigraphic markers. The formation is divided into four major zones: the Cisco, the Green Zone (GZ), the Upper Middle Canyon, and the Lower Middle Canyon (LMC). Of these, the GZ shows the highest matrix permeability, significant nonmatrix-flow features, and high-conductivity channels. Moreover, the transition zone (TZ) below the oil/water contact has recently been developed in parts of the SACROC Unit.

Review

Primary Production. Completed in November 1948, the Standard No. 1 Jessie Brown 2 was drilled to 6,700 ft and produced 530 B/D from the Canyon Reef Formation. Located 9 miles northwest of Snyder, Texas, this well was the discovery well of the North Snyder field. The Texas Railroad Commission eventually merged this field with the neighboring Kelly field upon recognizing that both fields produce from the same reservoir. The reservoir thickness varies from 10 ft on the flanks to 900 ft on the crest of the reef. A map of the unit’s 3D structure and thickness is shown in Fig.  1. By late 1950, 1,600 production wells had been drilled on the Kelly- Snyder field on irregular 40-acre spacing.
Modeling Surface Soil Moisture from Microwave Remote Sensing Data in Solani River Catchment, Uttarakhand, India
Authors: Said Saif
Published: July 2017

The spatiotemporal variation of surface soil moisture is a key subject variable need to be assessed accurately since it plays a crucial role in partitioning of rainfall into runoff and infiltration. Active microwave remote sensing has offered prominent potential towards accurate estimation of surface soil moisture. Present study utilizes ERS-2 SAR image for estimating surface soil moisture by incorporating the effect of topography, vegetation and surface roughness over three land cover types namely; sugarcane, wheat and barren land through Multiple Linear Regression (MLR) approach. Five independent variables considered for MLR analysis include backscatter coefficient (σ0 ), local incidence angle (αi), surface roughness height (hs), Leaf Area Index (LAI) and Plant Water Content (PWC), respectively. Results indicate retrieval of soil moisture within ± 20% accuracy for all the three land cover types with higher accuracy for barren land (i.e. R2 ~ 0.78 and RMSE = 1.31) as compared to the other two land cover types (i.e. sugarcane; R2 ~ 0.67 and RMSE = 3.60 and wheat; R2 ~ 0.72 and RMSE = 1.94). The present study reveals the effectiveness of MLR approach in the retrieval of surface soil moisture using fewer numbers of variables.
Predicting Factors of Depression, Antidepressant Use and Positive Response to Antidepressants in Perinatal and Postpartum Women
Authors: Vu Huyen , Shaya Fadia T.
Published: July 2017

Background:

In the United States, there is a disparity in knowledge of nationwide depression prevalence, the antidepressant use and the antidepressant responses during perinatal/postpartum periods.

Objective:

This study investigated the predicting factors of depression, antidepressant use and positive antidepressant response during the perinatal/postpartum periods.

Method:

The 2007-2012 National Health and Nutrition Examination Surveys (NHANES) were combined to identify adult pregnant women, those within the 18-month postpartum period (n=492) and their depression statuses via demographics, health care accessibility, antidepressant use and illicit drug use information. The characteristics of different study groups were compared (depression versus no-depression groups, antidepressant users versus non-antidepressant users, and antidepressant responders versus antidepressant non-responders). Multivariable logistic regression analysis was used to predict factors of perinatal depression (PND)/ postpartum depression (PPD), antidepressant use and antidepressant positive response in PND/PPD.

Results:

PND/PPD individuals had higher rates of mental health visits. No predicting factor for developing PND/PPD was shown. Antidepressant users were significantly older with insurance and recent health checkups/ mental visits. Being below the poverty level and having some health care accessibility are predictors for being on antidepressants. Recent non-illicit drug use is a predictor for PND/PPD symptom improvement while on antidepressants.

Conclusion:

The group of those with social-economic disadvantages was more likely to be on antidepressants for PND/PPD. Illicit drug users were less likely to show improvement with antidepressants. The safety and efficacy of antidepressant use during this period is controversial. More studies need to focus on the barriers involving antidepressant treatments, the safety and outcomes of antidepressants for PND/PPD management.
The Effects of Ramadan Fasting on Anterior Segment Parameters, Visual Acuity and Intraocular Pressures of the Eye
Authors: Selver Ozlem Barut , Palamar Melis , Gerceker Kevser , Egrilmez Sait , Yagci Ayse
Published: July 2017

Objective:

It is aimed to determine whether fasting during Ramadan has any significant effect on anterior chamber parameters, visual acuity and intraocular pressures.

Methods:

31 fasting (Group 1) and 30 non-fasting healthy volunteers (Group 2) were enrolled. All cases underwent an ophthalmological examination and anterior segment parameter evaluation (central corneal thickness (CCT), anterior chamber depth (ACD), anterior chamber volume (ACV), anterior chamber angle (ACA), pupil size) with Pentacam before and after the breaking of the Ramadan fast in Group 1, before and after dinner in Group 2.

Results:

The mean age was 43.35 ± 13.20 in Group 1, 43.17 ± 12.90 in Group 2 (p= 0.955). No significant difference was detected in any of the parameters in both groups.

Conclusion:

There is a need for more detailed and associated studies to understand better about the influence of Ramadan fast on various ocular parameters.
Efficacy and Safety of Switching from Prostaglandin Analog Therapy to Prostaglandin / Timolol Fixed Combination or Prostaglandin / Brimonidine Therapy
Authors: Inoue Kenji , Masumoto Mieko , Ishida Kyoko , Tomita Goji
Published: July 2017

Background:

To compare the safety and efficacy between switching to prostaglandin/timolol fixed combination eye drops (PG/timolol FCs) and adding brimonidine to PG analogue monotherapy.

Methods:

Eyes of 53 patients with primary open-angle glaucoma or ocular hypertension who were receiving PG analogue monotherapy were included. Participants were randomly divided into two treatment groups: one was prescribed PG/timolol FCs (switched group), and for the other, 0.1% brimonidine was added to the PG analogue (added group). Intraocular pressure (IOP), blood pressure, and pulse rate were measured after 1 and 3 months and compared to baseline values. Participants were also surveyed to determine if they had experienced systemic or topical adverse events at each study visit. IOP changes at 1 and 3 months were compared between groups.

Results:

Three months after changing medication, mean IOP was 14.6 ± 2.4 mmHg in the switched group and 13.7 ± 1.8 mmHg in the added group; both were significantly lower than the baseline values (switched group, 16.5 ± 2.7 mmHg; added group, 15.8 ± 2.3 mmHg; both P < 0.001). Neither the mean nor the percentage reductions in IOP were significantly different between groups at 1 and 3 months. In the added group, diastolic blood pressure was lower than that at 1 and 3 months, systolic blood was lower than that at 3 months (P < 0.01). The patients who had experienced systemic or topical adverse events were 53.8% in the added group and 40.7% in the the changed group, which was equivalent between groups (P =0.4142). Three patients (11.5%) in the added group, but none from the switched group, were excluded from analyses because of adverse events (not significant, P = 0.217).

Conclusion:

Switching from a PG analogue to PG/timolol FCs or to PG with brimonidine was equally safe (systemically and topically) and effective in reducing IOP. Thus, PG with brimonidine might be appropriate medication in patients who cannot use PG/timolol FCs due to repiratory or circulatory disease.
A realidade do Ensino Religioso no Estado do Amapá: proposta de criação do primeiro curso de Licenciatura em Ciência da Religião
Authors: Custódio Elivaldo Serrão , Reis Marcos Vinícius De Freitas , Bobsin Oneide
Published: July 2017

O presente trabalho tem por objetivo trazer reflexões sobre a realidade do Ensino Religioso no estado do Amapá, bem como a proposta de criação do primeiro curso de licenciatura em Ciência da Religião no estado. Trata-se do resultado de um estudo exploratório, de natureza qualitativa, que adotou a pesquisa bibliográfica e a análise documental como forma de investigação. No primeiro momento, abordamos os desafi os e as dificuldades da formação de professores/as de Ensino Religioso no estado. Em seguida, apresentamos uma análise sucinta da proposta de criação do curso de licenciatura em Ciência da Religião pela Universidade Federal do Amapá (UNIFAP), levando em consideração o histórico da proposta, seus objetivos, concepção epistemológica, dificuldades encontradas e a importância desse curso para a sociedade amapaense.
O ser humano cooperador com Deus: Ética cristã a partir dos dois regimentos e três estamentos na teologia de Martim Lutero
Authors: Wachholz Wilhelm
Published: July 2017

A doutrina da justificação por graça através da fé, que caracteriza a teologia de Martim Lutero, perpassa também sua última grande obra, a Preleção sobre Gênesis. Tudo que Deus criou é bom e serve para o benefício do ser humano. Pelo pecado, contudo, o ser humano se afastou de Deus e de toda a criação, da vida para a morte. Deus, em sua misericórdia e graça, não abandona o ser humano, mas o procura, chama para a reconciliação, cuja expressão mais concreta é o próprio Cristo. Deus reconcilia o ser humano, tornando-o justo para relações justas. O objetivo deste artigo é analisar, na teologia de Lutero, o ser humano justificado por Deus para ser justo cooperador de Deus para o melhoramento do mundo. O percurso da análise considerará a queda do ser humano no pecado, a relação entre os dois regimentos e os três estamentos, bem como ministérios e vocação com vistas à cooperação da pessoa cristã com Deus através de igreja, economia e política.
A Reforma do Século XVI e suas implicações para a atualidade: da prática da excomunhão aos gestos de reconciliação
Authors: Wolff Elias
Published: July 2017

O artigo faz uma análise da Reforma do século XVI centrado em três elementos que estão na origem das questões teológicas e pastorais do processo reformatório: a prática das indulgências, as 95 Teses de Lutero e a bula Exsurge Domine do papa Leão X. Aponta para uma nova compreensão desses elementos dentro de dois horizontes: os resultados das novas pesquisas sobre a pessoa e o ensino de Lutero; e o atual contexto do diálogo católico- -luterano. A partir disso, mostra elementos da Reforma que podem ser acolhidos como herança comum para católicos e luteranos em nossos dias e pergunta pela possibilidade de uma revisão da excomunhão de Lutero, de modo a favorecer os esforços por uma comunhão na fé entre católicos e luteranos.
Two-stage forearm brachio-basilic loop arteriovenous graft for hemodialysis
Authors: Donfrid Branislav , Lozance Olivera , Stefanovic Zvezdan , Jankovic Aleksandar , Dimkovic Nada
Published: July 2017

Introduction. The autologous radio-cephalic arteriovenous fistula (AVF) is the best vascular access for patients on chronic hemodialysis. In some patients with inadequate blood vessels, it is necessary to create proximal AVF, or arteriovenous grafts. High percentage of primary graft failure is noted in cases where diameters of the brachial artery and the basilic vein are insufficient. The aim of this work was to introduce a new surgical technique for arteriovenous creation in patients with inadequate blood diameter. Case outline. The authors have proposed implantation of brachio-basilic polytetrafluoroethylene AV forearm loop graft in two acts. In the first act, the native brachio-basilic AVF was created in the distal region of the arm by side-to-end anastomosis. Three to four weeks after the first act, significant dilatation of brachial artery and basilic vein was noted (confirmed by the use of color duplex sonography technique). During the second act, polytetrafluourethylene graft was implanted by end-to-end anastomosis on the dilated basilica vein. Conclusion. AV graft that was created in two acts has sufficient blood flow without early or late complications. Primary patency was 30 months and secondary patency was 50 months. As an original method in the current literature, we recommend it in different clinical settings when there are no better alternatives for vascular access.
Características histopatológicas para el desarrollo de cáncer gástrico en pacientes con dispepsia
Authors: Alvarado Gallo Virgilio Pelayo , Naranjo Raffo Linda Patricia
Published: July 2017

Introducción: en la patogénesis del cáncer gástrico el único método de diagnóstico es el estudio histopatológico que suele realizarse en etapas tardías. La detección oportuna de las lesiones preneoplásicas, disminuirían los cambios irreversibles de la mucosa gástrica y a su vez la incidencia de su malignidad. Objetivos: determinar las características histopatológicas preneoplásicas para el desarrollo de cáncer gástrico y su asociación con la edad y el sexo. Materiales y métodos: se realizó un estudio observacional, transversal y descriptivo donde se incluyó 1025 endoscopías digestivas con resultados histopatológicos en el área de gastroenterología del hospital Universitario de Guayaquil, periodo 2014-2015. Resultados: de los 1025 casos, el 80.8 % ya tenían cambio en la mucosa gástrica representada por signos histológicos crónicos, cuyos síntomas inespecíficos se presentaban en un 79 %; el 17.3 % presentaron signos preneoplásicos cuyos síntomas inespecíficos ocurrieron en un 75.8 %. El principal motivo de estudio en todas las lesiones histológicas fue la dispepsia. Conclusiones: los síntomas inespecíficos tuvieron un alto porcentaje de sospecha para indicar la realización de una endoscopía digestiva alta, de ahí la importancia de optimizar la historia clínica, en busca de síntomas precoces, factores de riesgo que contribuyan al desarrollo de neoplasia gástrica.
Megalitiasis de la vía biliar intra y extrahepática. Presentación atípica. Informe de un caso
Authors: Neira Borja James Edward , Vela Intriago Rodrigo Alexander , Paredes Calahorrano Diego Rafael , Neira Verduga María De Fátima
Published: July 2017

Las vías biliares intra y extrahepáticas suelen ser un lugar de formación de cálculos de diverso tamaño, pero se han descrito casos aislados de megalitiasis. El objetivo es presentar un caso clínico, cuadro biliar, sin evidencia clínica de colestasis, secundario a litiasis gigante intra y extrahepáticas; se realiza una revisión bibliográfica. Caso clínico de varón de 59 años, con patología cardiaca concomitante, que presenta cuadro de varios días de evolución, caracterizado por dolor abdominal de tipo cólico en hipocondrio derecho, sin signos de colestasis, sin ictericia, sin náuseas, pero con deterioro del sensorio. Pruebas específicas para vías biliares alteradas, con hiperbilirrubinemia, colangiorresonancia revela litiasis de gran tamaño, colangiografía retrógrada reveló vías biliares intra y extrahepáticas dilatadas, se realizó esfinterotomía endoscópica y evacuación de ductos biliares de manera parcial, por lo que se procedió a acto quirúrgico mediante colecistectomía, coledocotomía y anastomosis del colédoco al duodeno, con resolución del cuadro. Se concluye que la megalitiasis, es de presentación atípica. Las caracteristicas de esta entidad, revelan un espectro diferente de manifestaciones tanto clínicas como de laboratorio.
Diagnóstico temprano de quiste hemofílico. Reporte de caso
Authors: Marin Panchez Rocio Elizabeth , Almeida Betty Cristina , Monserrate Coello Lorena , Rizzo Delgado Teresa
Published: July 2017

Los trastornos hereditarios de la coagulación con mayor incidencia en la edad pediátrica son la hemofilia A (deficiencia factor VIII), la hemofilia B o enfermedad de Christmas (deficiencia factor IX) y la enfermedad de Von Willebrand. Siendo la hemofilia una enfermedad de tipo hereditario ligado al cromosoma X que se manifiesta con ausencia o disminución de la función de los factores de coagulación (factor VIII y IX) que impide una correcta hemostasia y consecuentemente hemorragias tanto interna como externas. Existen varias complicaciones causadas por esta patología siendo la más infrecuente el quiste hemofílico. Por este motivo se presenta el caso clínico de un paciente de 14 años de edad con diagnóstico de hemofilia reciente y a pesar de recibir tratamiento específico persistió la tumoración a nivel gemelar izquierdo. El principal objetivo es dar a conocer la importancia del diagnóstico temprano junto al manejo multidisciplinario
Manejo de escenarios mediante clima y suelo en la producción de caña de azúcar (Saccharum officinarum) 2010-2020: Valle del Grullo-Autlán, Costa Sur de Jalisco / Management of climate and soil scenarios in the production of sugarcane (Saccharum officinarum) 2010-2020: Valle del Grullo-Autlán, Southern Coast of Jalisco
Authors: Sandoval-Legazpi J. de J. , Figueroa-Rangel B. L. , Pérez Mares J. G.
Published: July 2017

Los modelos como herramientas de simulación constituyen un medio para entender la complejidad de un determinado sistema; los modelos se consideran elementos disponibles y necesarios para entender las hipótesis en sus procesos. Un modelo permite generar situaciones reales y complejas con base en sistemas de simulación que admiten tomar decisiones de cualquier índole. Este trabajo presenta, con apoyo del software VENSIM, escenarios propicios para la producción de caña de azúcar en el Valle El Grullo-Autlán, así como la validación del mismo con apoyo del software SPSS (versión 15.0). Los resultados muestran la manera como los factores suelo y precipitación repercutirán directamente y a futuro en la producción de caña por hectárea en el Valle El Grullo-Autlán. En este caso, el modelo cuadrático y el cúbico fueron estadísticamente significativos para el caso de la precipitación, no así la temperatura, lo que se suma al historial de temperaturas de los últimos 14 años en la región, el cual no presenta injerencia alguna hasta el momento. La producción ton/ha para el periodo 2010-2020 reflejará un aumento estimado de entre 3 y 8 ton/ha, según estos factores. Pero también se observa que de existir excedentes en el factor lluvia y pérdidas en materia orgánica, la producción tenderá a disminuir.
Permanent Switchboard Monitoring using Embedded Web Server
Authors: F. Fioretti  , S. Pasqualini  , A. Andreoli  , P. Pierleoni
Published: July 2017

The proposed paper discusses the realization of a system  prototype  able  to  perform  a  permanent  monitoring  of  a  switchboard  in  order  to  allow  the  manufacturer  the  complete  management of all the measurable quantities in the switchboard, specially the sensed voltage for each line. The main purpose is to prevent any fault that can affect the switchboard and provide an  instant  alarming  if  anomalous  values  are  revealed.  The  significant   aspect   of   our   prototype   is   the   internetworking   between   several   standard   network   protocols.   In   fact,   the   acquisition  network  sends  the  acquired  data  using  the  EIA  485  serial protocol. These data are then collected into an embedded web  server  ad-hoc  developed.  The  server  can  be  connected  to  the  Internet  in  a  wired  and/or  wireless  way  using  the  IEEE  802.3   (Ethernet)   and   the   IEEE   802.11   (Wi-Fi)   protocols.   Finally, the web server uses standard TCP/IP protocols, such as HTTP   to   manage   the   web   pages   and   SMTP   to   dispatch   automatic alarm notifications via e-mails.
“Los gerundios ‘analógicos’ en la historia del español”
Authors: Pato Enrique , O´Neill Paul
Published: July 2017

Fecha de recepción: 1 de diciembre de 2012.Fecha de aceptación: 3 de octubre de 2013. El presente trabajo se centra en la documentación y en la distribución geográfica (histórica y actual) de los llamados gerundios ‘analógicos’ del español (tuviendo, quisiendo), sobre la base de los datos de varios corpus lingüísticos (CORDE, CREA, Corpus del español, ALPI y COSER). Revisamos las explicaciones analógicas previas sobre estas formas y establecemos una explicación sobre la extensión del tema de perfecto al gerundio, basada en el condicionamiento fonológico. También defendemos que la explicación fonológica está en relación con las nociones estables del cambio morfológico, desde la teoría de la morfología natural.
“«Tu mihi…»: variaciones bucólicas sobre un ritual de dedicatoria, de Virgilio a Góngora”
Authors: Béhar Roland
Published: July 2017

Fecha de recepción: 12 de febrero de 2013.Fecha de aceptación: 28 de marzo de 2013. La dedicatoria de la primera Égloga de Garcilaso de la Vega (“El dulce lamentar…”) tiene como modelo la dedicatoria de la Égloga VIII de Virgilio, pero también la de la Égloga V de las Piscatoriae de Sannazaro.Se rastrea la importancia de este segundo modelo para los imitadoresde Garcilaso. Su “patrón triádico” enfatiza la importancia de la caza, presente en Sannazaro pero no en Virgilio. Adquiere tanto en las dedicatorias de la primera Soledad y del Polifemo de Góngora una importancia central, demostrando cuánto el poeta cordobés le debe al modelo piscatorio del napolitano Sannazaro.
Karl Kohut y María Cristina Torales Pacheco (eds.), Desde los confines de los imperios ibéricos: los jesuitas de habla alemana en las misiones americanas. Vervuert-Iberoamericana, Frankfurt/M.-Madrid, 2007; xxxvii + 741 pp. (Textos y Estudios Coloniales y de la Independencia, 16).
Authors: Espinosa Valdivia Carmen
Published: July 2017

Se reseña el libro Desde los confines de los imperios ibéricos:los jesuitas de habla alemana en las misiones americanas.
Fernando Serrano Mangas, El secreto de los Peñaranda: el universo judeoconverso de la Biblioteca de Barcarrota. Siglos XVI y XVII. Alborayque, Extremadura, 2010.
Authors: Pineda Martínez Aramiz
Published: July 2017

Se reseña el libro: El secreto de los Peñaranda: el universo judeoconverso de la Biblioteca de Barcarrota. Siglos XVI y XVII.
Revista “Diálogos”. Antología. Selección y presentación de José María Espinasa. El Colegio de México, México, 2008; 451 pp. (con un DVD).
Authors: Stanton Anthony
Published: July 2017

Se reseña el libro: Revista “Diálogos”. Antología.
Antonio Cajero Vázquez, Gilberto Owen en “Estampa”. Textos olvidados y otros testimonios.El Colegio de San Luis, San Luis Potosí, 2011; 106 pp.
Authors: Ugalde Quintana Sergio
Published: July 2017

Se reseña el libro:Gilberto Owen en "Estampa". Textos olvidados y otros testimonios.
EVALUATION OF IN VITRO ANTIVIRAL ACTIVITY OF HYPERICUM MYSORENSE F. HEYNE AGAINST HSV-2
Authors: S Marimuthu , Mohamed M Sheik Noor , P Saravanan , D Anand , S Rajarajan
Published: July 2017

The medicinal plants have played a vital role in drug discovery. Many plants are used traditionally for the treatment of different types of viral disorders and other infectious diseases. Herpes simplex virus (HSV) is a ubiquitous organism that causes infections in human populations throughout the world. It causes a variety of diseases ranging in severity from mild to life-threatening. The present study was to evaluate antiviral activity of Hypericum mysorense F. Heyne ethanolic leaf extract against herpes simplex virus type 2 (HSV-2) using HEp-2 cell line. The toxic free concentrations of ethanolic extract were determined using MTT assay, followed by anti HSV-2 activity and a positive control was maintained. 50µg/ml of ethanol extract was observed to be maximum non toxic free concentration against HEp-2 cell line and also exhibited significant inhibitory activity against HSV-2.
Trilhando saberes: a trajetória da criação de um grupo em contexto colaborativo
Authors: Rodrigues Zionice , Quintiliano Luciane de Castro , Santos Helen de Freitas
Published: July 2017

Esta história de experiências procura descrever as principais ações que três licenciandas em Matemática, uma professora da Educação Básica da rede estadual de ensino, um professor Professor Coordenador do Núcleo Pedagógico da rede estadual paulista, duas professoras de Informática e duas professoras de Prática de Ensino de Matemática do Instituto Federal de Educação, Ciência e Tecnologia de São Paulo - campus Birigui  tem desenvolvido num Grupo Colaborativo de Educação Matemática e Cientifica vinculado ao CNPq.
Grupo colaborativo contribuindo para a formação dos licenciandos em matemática
Authors: Attie João Paulo , Oliveira Juliene Santos , Souza Tiago de Jesus
Published: July 2017

Neste trabalho, descreve-se, de início, as dificuldades na formação para a carreira de professor de Matemática, abordando algumas características e problemas da fase inicial da docência, especialmente a grande distância entre o que é estudado e exigido no curso de licenciatura e a realidade da vida profissional. Este artigo pretende mostrar de que formas a participação em um grupo colaborativo pode contribuir, na formação do futuro docente, para minimizar algumas das dificuldades existentes nos primeiros contatos com a vida profissional. Como exemplo, testemunhamos o desenvolvimento de um grupo colaborativo no Programa Institucional de Bolsa de Iniciação à Docência (PIBID–Matemática) da Universidade Federal de Sergipe. Os resultados apontam para significativas contribuições, devidas à participação nesse grupo, para todos os integrantes, diminuindo assim este distanciamento entre a realidade da academia e a realidade escolar.
Economics of Sustainable Development as a Trend in Modern Economics: An Overview
Authors: Zalega Tomasz
Published: July 2017

The concept of sustainable development, and thus the evolution of the economics of sustainable development, became a subject of increased interest for researchers and businesses after the first UN Conference in Stockholm in 1972, and then after the second Earth Summit in Rio de Janeiro two decades later. It is at the second Earth Summit with its “Environment and Development” motto, which was attended officially by 172 countries and approximately 2400 representatives of nongovernmental organisations, where unsustainable consumption Summary Economics of Sustainable Development  as a Trend in Modern Economics: An Overview and production were recognised as the most important causes of growing global development problems. Attempts were made to find models of sustainable and stable economic development that took into account the protection of ecosystems from overexploitation and determinants of ecological human activity. It was no accident that this process coincided with the progress of economics of sustainable development. This article aims at providing an insight into economics of sustainable development and presenting its historical roots. The issues herein do not describe its whole range, but only selected elements. The structure of this article is as follows. The first part focuses on the origins, concept and principles, objectives and orders of sustainable development. Further, the concept and assumptions of sustainable development economics and homo sustinens as the basic underlying notion are discussed.
Logistyka zwrotna w łańcuchu dostaw
Authors: Janczewski Jerzy
Published: July 2017

W artykule przedstawiono dwa wyróżniające się obszary procesów logistyki zwrotnej związane ze sprzedażą i wykorzystaniem produktów oraz procesów po ich zużyciu. Dokonano analizy zwrotów i form logistyki zwrotnej oraz przedstawiono wyniki badań, które dają obraz rozpowszechnienia różnego rodzaju zwrotów produktów pomiędzy uczestnikami łańcucha dostaw (business-to-business) a użytkownikiem końcowym (firma – konsument). Szczególną uwagę zwrócono także na główne problemy zarządzania powrotami wynikające z różnorodności produktów.
Chmura produktowa innowacją zmieniającą oblicze produktu na przykładzie samochodu
Authors: Stopczyński Bartłomiej
Published: July 2017

Rozwój Internetu i nowoczesnych technologii powoduje transformację formy poszczególnych produktów na rynku. Obecnie sam Internet konwertowany jest do tzw. Internet 3.0 (Internet rzeczy). Jednocześnie wybrane produkty przekształcane są w inteligentne produkty połączone. Cechuje je ciągły dostęp do Internetu, który wykorzystuje w codziennym funkcjonowaniu, networking i pewien stopień autonomii funkcjonowania. W ramach tych produktów rośnie znaczenie ich elementów wirtualnych (system operacyjny, aplikacje, produkt chmurowy), z drugiej strony maleje znaczenie elementów tradycyjnych. Samochód jest jednym z elementów, który przekształca się w inteligentny, podłączony do sieci produkt. W artykule autorka stawia pytanie, jak Internet wpływa na kształt produktu (w tym przypadku samochodu). Celem artykułu jest określenie kierunku, w jakim ewoluują samochody pod wpływem ewolucji samego Internetu. Źródłem informacji umożliwiających uzyskanie odpowiedzi będzie dostępna literatura.
Ground state of nuclei in the Barium region within the Highly Truncated Diagonalization Approach
Authors: Hao Tran Viet Nhan , Tung Nguyen Hoang , Aloys Nizigama , Le Nguyen Nhu
Published: July 2017

The ground state of some Barium isotopes has been investigated in the framework of the parity-symmetry projection of the Highly Truncated Diagonalization Approach (HTDA), which is suited to treat the correlations in an explicitly particle-number conserving microscopic approach. A Skyrme energy -density functional using the SkM∗ interactions has been considered to treat the particle-hole channel, whereas a density-independent δ force has been adopted for the residual interaction. The obtained results are compared with the previous calculations using the Woods-Saxon potentials
INVESTIGATING THE MULTIPLE RECOLLISION OF THE NONSEQUENTIAL DOUBLE IONIZATION PROCESS
Authors: Vinh Pham Nguyen Thanh
Published: July 2017

We systematically investigate the contribution of recollision dynamics to the nonsequential double ionization process (NSDI) of Ar atom for a wide range of laser intensity. The result shows that the first- and second-recollision scenarios have significant contribution to the NSDI events. Moreover, we figure out that the impact of double-recollision trajectories decreases as the laser intensity increases. Besides, many details of multiple recollisions are also investigated in this paper.
Emigration of Nepalese People and Its Impact
Authors: Kunwar Laxman Singh
Published: July 2017

This paper reflects the emigration history of Nepalese people and their destinations with role of remittances in country of origin (Nepal). The number of emigrants and share of remittances in terms of GDP has been increased but at the same time various negative impacts have been emerged in Nepalese society. In addition trade deficit has been increased and Nepalese emigrants who are working abroad are not being able to receive their rights at their working place. Discriminations in terms of earning and other privileges are common for Nepalese emigrants and due lack of skills, trainings and low level of education mainly 3D (Difficult, Dirty, Dangerous) jobs secured at their working places, as a result the earning/remittances are also low. This paper is based on secondary sources of information and briefly explains the history of emigration and its impacts in socio-economic sectors of Nepal. Economic Journal of Development Issues Vol. 19 & 20 No. 1-2 (2015) Combined Issue, Page: 77-82
Evaluation of ‘Visual prostate symptom score’ in men with benign enlargement of prostate in a tertiary care center in midwestern Nepal
Authors: Gupta Dipesh Kumar
Published: July 2017

Introduction: Quantification of lower urinary tract symptoms (LUTS) in patients with benign enlargement of prostate (BEP) is required to initiate and regulate treatment. Among many, International Prostate Symptom Score (IPSS) is standard though it is time consuming and difficult to understand by many patients. A recent Visual Prostate Symptom Score (VPSS) which is presumed to be simpler and well understood by patients with lower educational status has been in use.

Methods: This is a prospective observational study conducted in Nepalgunj Medical College, Nepalgunj. In a total of 79 patients, 25 patients of LUTS because of other causes were excluded and 54 patients clinically diagnosed with BEP were enrolled for the study over a period of one year. Symptom evaluation was done in all with both IPSS and VPSS and uroflowmetry parameters were also recorded. The IPSS and VPSS were compared with each other and also with uroflowmetry parameters.

Results: Mean age of the patients was 67 years and mean prostate volume was 48 gm. The patients who mostly were farmers had median eighth grade of education. Fourteen were illiterates and 40 were literate patients. Significant number of patients required assistance of a medical personnel to complete IPSS (p= <0.001) including those in literate group as well (p= <0.001). Time taken to complete VPSS was significantly less (p= 0.019). Total IPSS correlated with total VPSS ((r= +0.36; p=0.007). There was negative and significant correlation of VPSS with uroflowmeter parameters while IPSS failed to do so.

Conclusion: VPSS is an easy and reliable tool to assess symptom severity in cases of BEP presenting with LUTS. It has the added advantage of utility in assessment of LUTS in patients with lower educational status. Moreover, the patients take shorter time to complete the questionnaire.  
Building Evaluation Culture and Capacity in a Community-Level Program: Lessons Learned from Evaluating Youth Futures
Authors: Runnels Vivien , Andrew Caroline , Rae Jennifer
Published: July 2017

Abstract: Youth Futures is a complex program supported by a local partnership aimed at increasing access to post-secondary education among youth from lower-income family backgrounds. Although program stakeholders have recognized the importance of evaluation since the program’s inception, embedding an evaluative culture and building capacity for evaluation practice in the context of this partnership-led program has been challenging. We describe our experiences and the lessons that have been learned about generating and sustaining interest in evaluation among a diverse group of stakeholders. The article proposes some recommendations for others who endeavour to conduct evaluation work in community contexts.
Method for temporal keyhole lobectomies in resection of low- and high-grade gliomas
Authors: Conner Andrew K. , Burks Joshua D. , Baker Cordell M. , Smitherman Adam D. , Pryor Dillon P. , Glenn Chad A. , Briggs Robert G. , Bonney Phillip A. , Sughrue Michael E.
Published: July 2017

OBJECTIVE

The purpose of this study was to describe a method of resecting temporal gliomas through a keyhole lobectomy and to share the results of using this technique.

METHODS

The authors performed a retrospective review of data obtained in all patients in whom the senior author performed resection of temporal gliomas between 2012 and 2015. The authors describe their technique for resecting dominant and nondominant gliomas, using both awake and asleep keyhole craniotomy techniques.

RESULTS

Fifty-two patients were included in the study. Twenty-six patients (50%) had not received prior surgery. Seventeen patients (33%) were diagnosed with WHO Grade II/III tumors, and 35 patients (67%) were diagnosed with a glioblastoma. Thirty tumors were left sided (58%). Thirty procedures (58%) were performed while the patient was awake. The median extent of resection was 95%, and at least 90% of the tumor was resected in 35 cases (67%). Five of 49 patients (10%) with clinical follow-up experienced permanent deficits, including 3 patients (6%) with hydrocephalus requiring placement of a ventriculoperitoneal shunt and 2 patients (4%) with weakness. Three patients experienced early postoperative anomia, but no patients had a new speech deficit at clinical follow-up.

CONCLUSIONS

The authors provide their experience using a keyhole lobectomy for resecting temporal gliomas. Their data demonstrate the feasibility of using less invasive techniques to safely and aggressively treat these tumors.