bluuebunny/crossref_metadata_2025 huggingface dataset:
UTILIDADE PERCEBIDA DO PLANEJAMENTO ORÇAMENTÁRIO: ESTUDO COMPARATIVO ENTRE EMPRESAS DO SETOR DE COMÉRCIO VAREJISTA DE MATERIAIS DE CONSTRUÇÃO E DE TRANSPORTE COLETIVO
Authors: Schnorrenberger Darci , Martins Vinicius , Lunkes Rogério João , Gasparetto Valdirene
Published: June 2017

Este artigo tem por objetivo identificar a utilidade percebida do planejamento orçamentário em empresas do setor de comércio varejista de materiais de construção e de transporte coletivo urbano, no auxílio à gestão. Trata-se de uma pesquisa descritiva com abordagem quali e quantitativa com aplicação de um questionário semiestruturado junto ao responsável pelo orçamento das empresas. Os resultados demonstram que: a) o planejamento é elaborado de forma distinta entre as empresas; b) diversos aspectos preconizados pela teoria também são utilizados nas empresas, tais como: projeção dos resultados e dos fluxos de caixa, análise contábil financeira, controles dinâmicos e diários, implantação da liderança, entre outros; c) a utilização dos recursos do planejamento orçamentário contribui para negociações mais eficientes com os diferentes públicos, resultando em melhorias na previsão de vendas, de compras, de investimentos, definição dos objetivos e fixação de metas, entre outros. Constatou-se que, mesmo em diferentes níveis e formas de uso, a maioria dos gestores considera o processo orçamentário um importante suporte e facilitador para gestão.
Reflexões Sobre as Práticas de Pesquisa em Administração
Authors: Terra Leonardo Augusto Amaral , Ganzert Christian Carvalho , Medeiros Mirna De Lima , Passador João Luiz
Published: June 2017

A administração como ciência ainda é relativamente nova e como tal, vivencia desordens internas, relativas ao seu objeto de pesquisa, sua relevância e sua própria forma de perceber o mundo. Entre Marx e Weber a ciência da administração se colocou frente a um dilema de ordem epistemológica, onde determinados paradigmas assumiram o papel de juízes da verdade. Este ensaio teórico sugere que, como uma ciência abrangente, a administração precisa reestabelecer o elo entre teoria e prática. Para tal, é preciso transcender as disputas epistemológicas e alargar a percepção da administração para abranger as características pertinentes a cada objeto de estudo.
A CIENTIFICIDADE DA ADMINISTRAÇÃO EM DEBATE
Authors: Taffarel Marinês , Silva Eduardo Damião da , Silva Eduardo Damião da
Published: June 2017

Neste artigo, busca-se apresentar uma discussão sobre a cientificidade da Administração, por ser essa uma questão ainda inconclusa no meio acadêmico. Para tanto, são apresentadas as principais razões destacadas na academia para a Administração ser classificada como ciência ou como prática. Posteriormente, com base na filosofia da ciência, buscam-se fundamentos sobre os critérios de demarcação científica, com o objetivo de verificar se a Administração pode ser considerada uma ciência, por meio de tais critérios e da observância dos princípios e das leis que a regem. Os resultados da discussão indicam que as principais razões para alguns autores não reconhecerem a cientificidade da Administração são pautadas especialmente nos argumentos de que constitui apenas uma aplicação de outras ciências, suas teorias são vagas e de pouca aplicabilidade e o ensino é voltado somente à prática. Por outro lado, as razões de a administração ser considerada uma ciência são especialmente fundamentadas na filosofia da ciência e nos critérios de demarcação científica: possibilidade de formular enunciados "Se, então”, ser livre de juízos de valor, estabelecer declarações ou assertivas válidas no tempo e no espaço, atender aos critérios de objetividade e falseabilidade, possuindo, portanto: objetivo, função e objeto.
Meditações Funcionalistas
Authors: Boava Diego Luiz Teixeira , Macedo Fernanda Maria Felício , Sette Ricardo Souza
Published: June 2017

Neste artigo apresentam-se as meditações funcionalistas, que se constituem em cinco reflexões teóricas sobre a administração. Trata-se de um texto crítico, que assume uma posição e que pretende debater temas importantes para a área. Não se busca desmerecer ou desqualificar o encontrado na atual realidade do ramo, apenas atingir aquela essência que fica mascarada em discursos romantizados e enviesados por um modo de ver pouco esclarecedor. Busca-se, assim, um novo modo de acesso ao fenômeno administrativo, através de uma análise filosófica sobre a temática, de forma a contemplar novas possibilidades de compreensão da realidade.
UMA ANÁLISE DAS ESCALAS DE MENSURAÇÃO DO CONSTRUTO “IMAGEM DE PAÍS”
Authors: Lopes Isadora Bacha , Giraldi Janaina De Moura Engracia
Published: June 2017

O presente trabalho tem como objetivo realizar uma revisão da literatura sobre o construto imagem de país, de forma a entende-lo mais profundamente e analisar as escalas de mensuração existentes. Foi possível perceber que as fronteiras entre os conceitos percepção, imagem e atitude são muito sutis. Além disso, muitas vezes a forma como o construto é conceituado não é a mesma pela qual ele é operacionalizado. A partir dos resultados obtidos nesta revisão, concluiu-se que a escolha da escala e da teoria a ser aplicada para medir imagem de país influenciam significativamente o resultado do trabalho.
GESTÃO DA QUALIDADE COMO ESTRATÉGIA PARA MELHORIAS NO RENDIMENTO OPERACIONAL DE INDÚSTRIAS QUEIJEIRAS
Authors: Rocha Luiz Célio Souza , Carvalhais Jéssica Fernandes , Martins Maurílio Lopes
Published: June 2017

Quando se analisa o setor de lácteos brasileiro, constata-se que muitas empresas ainda estão distantes da implementação de estratégias que possibilitem o alcance de diferenciais competitivos. O presente trabalho buscou quantificar as perdas operacionais em uma fábrica de queijo localizada no Município de Rio Pomba/MG considerando o não uso de um programa de garantia da qualidade que refletisse na melhoria da matéria-prima. Como resultado, obteve-se que o rendimento foi significativamente afetado pelo tempo de armazenamento. Por fim, conclui-se que a implementação da gestão da qualidade na indústria queijeira analisada melhoraria seu desempenho operacional e econômico.
A Percepção dos Gestores Sobre as Práticas de Retenção de Talentos Adotadas em uma Empresa de Logística e Distribuição
Authors: Rabêlo Alexandre Rabêlo , Avelino Mazza Adriana Carla
Published: June 2017

Empresas capazes de configurar recursos e capacidades, distintivamente, deverão fornecer aos clientes mais valor do que os competidores (TEECE et al., 1997). O objetivo da pesquisa foi descrever a percepção dos gestores quanto às práticas de retenção de talentos em uma empresa de Logística e Distribuição. Esta pesquisa é descritiva e qualitativa (SILVA; MENEZES, 2001). Coletaram-se os dados primários em maio de 2013. Buscou-se a entrevista como enfoque direto do estudo (YIN, 2005). Utilizou-se o software Atlas/ti 6.0 para associar dados. Como resultados, nota-se que a retenção de talentos tem várias acepções, por exemplo, desafios, desempenho, trabalho em equipe.
O VOLUNTARIADO SOCIAL E SUAS INTERRELAÇÕES COM A SUSTENTABILIDADE
Authors: Cenci Rosangela , Silva Rosária Maria Ferreira , Sehnem Simone , Filippim Eliane Salete
Published: June 2017

O artigo buscou identificar as principais dificuldades encontradas pela Associação Vida Cidadã (AVIC), na ótica do voluntariado. O estudo consiste em uma pesquisa de abordagem qualitativa, do tipo descritiva, cujo procedimento consiste em um estudo de caso. Foi possível observar que, na visão dos voluntários sujeitos da pesquisa, a principal dificuldade existente na organização é a sustentabilidade financeira. Os voluntários da organização vêem a humanização como o principal ponto forte da AVIC. Evidencia-se a predominância do entendimento de sustentabilidade pela integração das sustentabilidades (econômica, social, ambiental) com tendência de preferência para a dimensão social
ANÁLISE DA INTERDEPENDÊNCIA DO CAPITAL PSICOLÓGICO, PERCEPÇÕES DE SUPORTE E BEM-ESTAR NO TRABALHO
Authors: Souza Warton Silva , Siqueira Mirlene Maria Matias , Martins Maria do Carmo Fernandes
Published: June 2017

O objetivo deste estudo foi estudar a interdependência de algumas variáveis do comportamento organizacional, testando um modelo conceitual composto do capital psicológico, percepções de suporte e bem-estar no trabalho. Os participantes foram 152 trabalhadores que atuavam em organizações públicas e privadas. Como instrumento para coleta de dados foi utilizado um questionário de autopreenchimento composto de seis escalas que mediram as variáveis da pesquisa.  Os resultados obtidos demonstraram que os níveis das três dimensões de bem-estar no trabalho são impactados diretamente pelas percepções de suporte e estes por sua vez são influenciados pelo capital psicológico.
PROTECTIVE EFFECT OF IRIS GERMANICA L. IN Β-AMYLOID-INDUCED ANIMAL MODEL OF ALZHEIMER’S DISEASE
Authors: Borhani Mona , Sharifzadeh Mohammad , Farzaei Mohammad Hosein , Narimani Zahra , Sabbaghziarani Fatemeh , Gholami Mahdi , Rahimi Roja
Published: June 2017

Background: Alzheimer's disease (AD) is the most common cause of dementia that is an irretrievable chronic

neurodegenerative disease. In the current study, we have examined the therapeutic effects of Iris germanica extract on

Amyloid β (Aβ) induced memory impairment.

Materials and Methods: Wistar rats were divided into five groups of 8 per each. Groups were as followed: control

group which were normal rats without induction of AD, Aβ group which received Aβ (50 ng/side), iris 100 group

which received Aβ + Iris (100 mg/kg), iris 200 group which received Aβ + Iris (200 mg/kg), and iris 400 group which

received Aβ + Iris (400 mg/kg). AD was established by intrahippocampal injection of 50 ng/μl/side Aβ1-42. The day

after surgery, animals in treatment groups received different doses of the aqueous extract of Iris by gavage for 30 days.

Morris water maze test (MWM) was performed to assess the effects of I. germanica on learning and memory of rats

with Aβ induced AD.

Results: Data from MWM tests, including escape latency and traveled distance, demonstrated that I. germanica extract

could markedly improve spatial memory in comparison to control. Moreover, the plant had a significantly better effect

on the performance of AD rats in the probe test.

Conclusion: I. germanica extract can successfully reverse spatial learning dysfunction in an experimental model of

AD. Further neuro psyco-pharmacological studies are mandatory to reveal the mechanism of action of this natural

remedy in the management of AD symptoms.
RAW REHMANNIA RADIX POLYSACCHARIDE CAN EFFECTIVELY RELEASE PEROXIDATIVE INJURY INDUCED BY DUCK HEPATITIS A VIRUS
Authors: Song Meiyun , Chen Yun , Du Hongxu , Zhang Shuaibing , Wang Yixuan , Zeng Ling , Jintong Shi Jingjing Yang , Wu Yi , Wang Deyun , Hu Yuanliang , Liu Jiaguo
Published: June 2017

Background: Duck viral hepatitis (DVH), caused by duck hepatitis A virus (DHAV), is a fatal contagious infectious

disease which spreads rapidly with high morbidity and high mortality, and there is no effective clinical drug against

DVH.

Materials and Methods: Raw Rehmannia Radix Polysaccharide (RRRP), Lycii Fructus polysaccharides and

Astragalus Radix polysaccharides were experimented in vitro and in vivo. Mortality rate, livers change, liver lesion

scoring, peroxidative injury evaluation indexes in vitro and in vivo, and hepatic injury evaluation indexes of optimal

one were detected and observed in this experiment.

Results: RRRP could reduce mortality with the protection rate about 20.0% compared with that of the viral control

(VC) group, finding that RRRP was the most effective against DHAV. The average liver scoring of the VC, blank

control (BC), RRRP groups were 3.5, 0, 2.1. Significant difference (P
ANTI-ULCEROGENIC EFFICACY AND MECHANISMS OF EDIBLE AND NATURAL INGREDIENTS IN NSAID-INDUCED ANIMAL MODELS
Authors: Bi Weiping , Hu Lizhi , Man Mao-Qiang
Published: June 2017

Background: Nonsteroidal anti-inflammatory drugs (NSAIDs) are a class of the most commonly used medicines and proven to be effective for certain disorders. Some people use NSAIDs on daily basis for preventive purpose. But a variety of severe side effects can be induced by NSAIDs. Studies have shown that edible natural ingredients exhibit preventive benefit of gastric ulcer. This paper reviews the efficacy and safety of edible natural ingredients in preventing the development of gastric ulcer induced by NSAIDs in animal models.

Methods: A systematic literature search was conducted on PubMed, using the terms “herbal medicines” and “gastric ulcer”, “herbal medicines” and “peptic ulcer”, “food” and “peptic ulcer”, “food” and “gastric ulcer”, “natural ingredient” and “peptic ulcer”, “natural ingredient” and “gastric ulcer”, “alternative medicine” and “peptic ulcer”, “alternative medicine” and “gastric ulcer”, “complementary medicine” and “peptic ulcer”, “complementary medicine” and “gastric ulcer” in papers published in English between January 1, 1960 and January 31, 2016, resulting in a total of 6146 articles containing these terms. After exclusion of studies not related prevention, not in NSAID model or using non-edible natural ingredients, 54 articles were included in this review.

Results: Numerous studies have demonstrated that edible natural ingredients exhibit antiulcerogenic benefit in NSAID-induced animal models. The mechanisms by which edible, ingredient-induced anti-ulcerogenic effects include stimulation of mucous cell proliferation, antioxidation, inhibition of gastric acid secretion, as well as inhibition of H (+), K (+)- ATPase activities. Utilization of edible, natural ingredients could be a safe, valuable alternative to prevent the development of NSAID-induced gastric ulcer, particularly for the subjects who are long-term users of NSAIDs.
NEUROPROTECTIVE EFFECT OF TERMINALIA CHEBULA EXTRACTS AND ELLAGIC ACID IN PC12 CELLS
Authors: Shen Yuh-Chiang , Juan Chi-Wen Juan , Juan Chi-Wen Juan , Lin Che-San , Lin Che-San , Chen Chien-Chih , Chen Chien-Chih , Chang Chia-Lin , Chang Chia-Lin
Published: June 2017

Alzheimer’s disease (AD) is one of the most prevalent severe neurological disorders afflicting our aged population. The study was to determine neuroprotective effects of the Terminalia chebula extracts and ellagic acid by using beta-amyloid25-35 (Ab25-35)-induced cell cytotoxicity in undifferentiated rat pheochromocytoma (PC12) cellular model. The methanolic and water extracts of T. chebula and ellagic acid exhibited the strongest neuroprotective activity against Ab25-35-induced undifferentiated PC12 cell deaths at 0.5–5.0 ug/ml. The ellagic acid also exhibited the partial neuroprotective activity against H2O2-induced undifferentiated PC12 cell deaths at 0.5–5.0 ug/ml. The methanolic and water extracts of T. chebula and ellagic acid protected undifferentiated PC12 cells from the damaging effects of Ab25-35 in several ways: (1) by securing cell viability; (2) by suppressing reactive oxygen species production; and (3) by eliminating calcium ion influx. The T. chebula extracts maybe represent a promising plant-source for medicine in the application of the treatment of AD. Further investigation of the ellagic acid is necessary to verify the neuroprotective efficacy and mechanisms in vivo.
INHIBITORY EFFECT OF CHITOSAN OLIGOSACCHARIDE ON HUMAN HEPATOMA CELLS IN VITRO
Authors: Liu Likun , Yi Xin , Liu Jia , Zhang Ershao , Weiling Li
Published: June 2017

Background: Chitosan oligosaccharide, the degradation products of chitin, was reported to have a wide range of

physiological functions and biological activities. In this study, we explored the inhibitory effect of Chitosan

oligosaccharide on human hepatoma cells

Materials and Methods: MTT assay was applied to detect cell viability of the human hepatoma cells treated with

Chitosan oligosaccharide. Flow cytometric analysis was used to investigate the apoptosis of the human hepatoma cells

treated with Chitosan oligosaccharide. We employed western blot to investigate the underlying mechanisms involved in

the apoptosis.

Results: Our data indicated that chitosan oligosaccharide dose-dependently inhibited the growth of hepatoma cells and

induced apoptosis. On the molecular level, chitosan oligosaccharide decreased Bcl-2 and increased Caspase-3

expression which may be related to the apoptosis of hepatoma cells.

Conclusion: Our results provide an experimental basis for the clinical development of Chitosan oligosaccharide as a

novel anti-hepatoma drug.
PROTECTIVE EFFECT OF VANILLIC ACID ON OVARIECTOMY-INDUCED OSTEOPOROSIS IN RATS
Authors: Wang Yong Gui , Jiang Liang Bo , Gou Bo
Published: June 2017

Background: The need for an anti-osteoporotic agent is in high demand since osteoporosis contributes to high rates of

disability or impairment (high osteoporotic fracture), morbidity and mortality. Hence, the present study is designed to

evaluate the protective effects of vanillic acid (VA) against bilateral ovariectomy-induced osteoporosis in female

Sprague-Dawley (SD) rats.

Materials and Methods: Forty healthy female adult SD rats were separated in to four groups with sham-operated

control with bilateral laprotomy (Sham; n = 10), bilateral overiectomy (OVX; n = 10) group, OVX rats were orallay

administrated with 50 mg/kg b.wt of VA (OVX + 50 VA; n = 10) or 100 mg/kg b.wt of VA (OVX + 100 VA; n = 10)

for 12 weeks (post-treatment) after 4 weeks of OVX.

Results: A significant change in the body weight gain was noted in OVX group, while treatment with VA substantially

reverted to normalcy. Meanwhile, the bone mineral density and content (BMD and BMC) were substantially improved

on supplementation with VA. Also, the bone turnover markers like calcium (Ca), phosphorous (P), osteocalcin (OC),

alkaline phosphatase (ALP) and deoxypyridinoline (DPD) and inflammatory markers (IL-1β, IL-6, and TNF-α) levels

were markedly attenuated in VA-treated rats. Moreover, the biomechanical stability was greatly ameliorated with VA

administration. Both the dose of VA showed potent anti-osteoporotic activity, but VA 100 mg showed highest

protective effects as compared with 50 mg of VA.

Conclusion: Based on the outcome, we concluded that VA 100 showed better anti-osteoporotic activity by improving

BMD and BMC as well as biomechanical stability and therefore used as an alternative therapy for treating

postmenopausal osteoporosis.
Brechas en cobertura efectiva por nivel socioeconómico y condición de pobreza
Authors: Pablo Gutiérrez Juan
Published: June 2017

Objetivo. Analizar en el contexto de la ampliación en la protección en salud en México las brechas por nivel socioeconómico y condición de pobreza en la cobertura efectiva de intervenciones preventivas en México. Material y métodos. Datos de la Encuesta Nacional de Salud y Nutrición 2012 y 2006, utilizando indicadores de cobertura efectiva previamente propuestos, con una estratificación por quintil socioeconómico (SE) y por condición de pobreza multidimensional. Resultados. Para las intervenciones relacionadas con la vacunación, se identifica lo que se ha llamado equidad inmunológica. Para otros indicadores de servicios preventivos se observa una menor probabilidad de cobertura efectiva en el quintil de menor nivel SE y entre los pobres multidimensionales. Analizando las diferencias entre 2006 y 2012, no hay evidencia de que haya mejorado esta brecha. Conclusión. Aunque la protección en salud en México se ha incrementado de forma importante y ha reducido las brechas socioeconómicas, éstas siguen manifestándose en las coberturas efectivas de las intervenciones preventivas.
Violencia interpersonal en jóvenes mexicanos y oportunidades de prevención
Authors: Valdez-Santiago Rosario , Hidalgo-Solórzano Elisa , Mojarro-Íñiguez Mariana
Published: June 2017

Objetivo. Estimar la prevalencia de daños a la salud a causa de la violencia interpersonal en adolescentes y adultos jóvenes. Material y métodos. Se presenta información sobre las consecuencias de la violencia en México. Los datos provienen de la Encuesta Nacional de Salud y Nutrición 2012 realizada entre octubre de 2011 y mayo de 2012. El análisis estadístico consistió en calcular prevalencias e intervalos de confianza al 95% para el grupo de adolescentes y jóvenes. Resultados. Cuatro de cada cien jóvenes ha presentado daños a la salud a causa de la violencia interpersonal. La prevalencia de violencia interpersonal es mayor entre los hombres (5.0% hombres, 3.3% mujeres) y el grupo de edad más vulnerable es el de los hombres de 20 a 29 años para las mujeres el hogar es un espacio donde una de cada cuatro reporta sufrir violencia (24.5%). Conclusiones. Es necesario implementar medidas integrales para la población joven, dirigidas a evitar que este problema siga creciendo tanto en frecuencia como en sus diversas expresiones y espacios.
Clasificación socioeconómica de los hogares en la ENSANUT 2012
Authors: Gutiérrez Juan Pablo
Published: June 2017

Objetivo. Presentar el abordaje para el indicador socioeconómico generado para la ENSANUT 2012 y su validación. Material y métodos. El indicador que se reporta se basa en una imputación del nivel de ingreso (en deciles) de los hogares incluidos en la ENSANUT 2012, a partir de indicadores demográficos y socioeconómicos de los hogares, y utilizando como referencia la Encuesta Nacional de Ingresos y Gastos de los Hogares 2010. Resultados. El indicador generado permite identificar la heterogeneidad en indicadores socioeconómicos conocidos (años de estudios del jefe del hogar, ingreso, acceso a servicios, bienes del hogar). Conclusión. La heterogeneidad socioeconómica que captura el indicador propuesto permite identificar las  variaciones y brechas en resultados de salud y cobertura de programas, asociadas con el nivel socioeconómico.
Introduction. Obesity prevention
Authors: Barquera Simón
Published: June 2017

_
Interventions to increase physical activity and healthy eating among overweight and obese children in Mexico
Authors: M Eisenberg Christina , Sánchez-Romero Luz María , Rivera-Dommarco Juan A
Published: June 2017

Objetivo. El propósito del presente estudio fue realizar una revisión sistemática de la literatura en intervenciones relacionadas con la obesidad enfocadas en incrementar la actividad física y alimentación saludable en niños mexicanos con obesidad y sobrepeso. Material y métodos. La información forma parte de una revisión sistemática de la literatura enfocada en intervenciones para prevenir o tratar la obesidad en población latina habitante de Latinoamérica y Estados Unidos. La adecuación del diseño del estudio, la calidad de ejecución y el efecto de la muestra fueron evaluados para una submuestra de estos artículos. Resultados. Se incluyeron seis estudios dentro de la revisión. Cinco estudios encontraron una reducción en los resultados relacionados con la obesidad, mientras que un estudio encontró ganancias en el indice de masa corporal (IMC). Conclusiones. La actividad física y alimentación saludables fueron componentes constantes de las intervenciones para tratamiento de la obesidad. Esto resalta la importancia de entender las estrategias basadas en evidencia para guiar futuras investigaciones en la reducción de la obesidad infantil en México.
Tuberculosis stigma and perceptions in the US-Mexico border
Authors: M Moya Eva , W Lusk Mark
Published: June 2017

Objective. To examine the experiences and perspectives on the disease and stigma from the vantage point of the persons affected by TB in El Paso, Texas, and Juárez, México to inform research on health-related stigma and interventions. Materials and methods. Semi-structured interviews to study TB-related stigma and the impact on access and healthseeking behaviors with 30 Mexican-origin adults (18 years and older) undergoing TB treatment. Results. Barriers to accessing health services for TB; emotional distress due to their deteriorated physical and emotional condition; reactions ranging from depression, sadness; doubt, anger, and fear of rejection; distancing, fear of contagion, stigma, and feeling of discriminated against, and isolation from loved ones were reported. Conclusion. Stigma associated with TB is a barrier to health care access and to quality of life in tuberculosis management. Stigma adversely shapes the experience of treatment and recovery. Stigma is not a naturally occurring phenomenon, but something created by people and as such it can be “un-done” by those people as part of a collective which comprises society.
Russia’s Push for Oil and Gas Growth Stunted by Oversupplied Markets
Authors: Rassenfoss Stephen
Published: June 2017

Russia has shown a remarkable ability to add oil and gas production in the face of daunting obstacles. It has aggressively expanded in Asia, by rapidly adding production in east Siberia, as it builds pipelines to China and a liquefied natural gas (LNG) facility deep in the Arctic.

A panel of eight leaders from the Russian oil and gas business recently offered an impressive growth story in the face of international trade sanctions and oil prices that sunk into the USD-30/bbl range year ago. 

“I have an impression there is a kind of positive mood,” said Alexander Novak, Minister of Energy of the Russian Federation, at a panel session at the IHS Markit CERAWeek conference in Houston. “Prices are becoming stable, more predictable,” he said, but added “there is uncertainty about what comes next.”

As Novak was talking about how the oil-and-gas-driven Russian economy is growing again after a 2-year downturn, oil markets remain weak due to rising US unconventional oil production and lingering high inventories.

The upbeat feeling mentioned by Novak was largely the product of a deal between OPEC and major producers, particularly Russia, to reduce their output.

As of late March, Russia was less than halfway to meeting its pledge to cut output according to a report by Rystad Energy. That study showed that while the largest Russian producers had made cuts equal to about 50% of the 300,000 B/D commitment, those reductions were offset by rising production from independents, particularly by the biggest one in this group, Irkutsk Oil.

“We do not currently see any evidence of Irkutsk Oil or other smaller producers planning to comply with the reduction program targeted, and thus there exists an upside risk to the overall agreement,” said Veronika Akulinitseva, an analyst for Rystad Energy.

Russia remains the biggest supplier of gas to Europe, but an oversupply of gas there means it is scrambling to retain customers demanding lower prices. That is a big change from earlier this decade when gas supplies were tight, and Russia was able to demand top prices.

 “Those days are gone now” as the supply gap changed to a supply glut, said Maxim Nechaev, director of consulting in Russia for IHS Markit.
Next-Generation High-Torque Connection for Extended-Reach Wells
Authors: Wilson Adam
Published: June 2017

This article, written by Special Publications Editor Adam Wilson, contains highlights of paper SPE 183415, “Development of Next-Generation High-Torque Oil-Country-Tubular-Goods Premium Connection for Extended-Reach Wells,” by Jerry Buster and Justin Perkins, VAM, and Leonardo Azeredo, Vallourec, prepared for the 2016 Abu Dhabi International Petroleum Exhibition and Conference, Abu Dhabi, 7–10 November. The paper has not been peer reviewed.

Long laterals (>6,000 ft) are generating industry challenges that do not exist with shorter lateral wells (2,000–5,000 ft). These longer lateral wells require connections to be exposed to extreme torques, bending, and rotational loads that may render some commercially available connections ineffective in getting the string to location and could compromise sealability. This paper demonstrates how the latest generation of those connections has been tested and validated to extreme loads before being installed in the wellbore.

Introduction

Extended-reach drilling (ERD) has existed since the 1970s, and continuous development has pushed the lengths of the laterals. One of the main challenges in ERD is the drag friction force, mainly because of the string weight during its deployment in deviated sections and long horizontal laterals. As a consequence, conventional standard running practices are not effective for running the casing and liner.

To cope with this and reduce drag, one technical alternative used by operators is string rotation for casing and production liners and even for lower completions. Torque-and-drag analysis is one of the key factors to success on such projects. The longer the horizontal lateral departure, the higher the probability of requiring high torque. Torque also can be used to improve cementing quality, by use of string rotation during cementation.

Because high torque is required for ERD, both the connection and the tubular need to be able to withstand the high torque level and the connection needs to maintain its mechanical and sealability performance.

Methods

Connection Basics. The innovative connection presented in this paper was developed to meet the increasing challenges of ERD. The connection uses a threaded-and-coupled design that allows for maximum tensile efficiency along with maximum torque capacity (Fig. 1). The thread design is a self-locking dovetail concept that has excellent torque capacity. The seal design is a single internal metal-to-metal seal with radius-to-cone contact surfaces. This provides stable seal contact during all loading sequences and robust make-and-break performance.
Surface Modified Nanoparticles as Internal Breakers for Viscoelastic Surfactant Based Fracturing Fluids for High Temperature Operations
Authors: Sangaru Shiv Shankar , Yadav Prahlad , Huang Tim , Agrawal Gaurav , Chang Frank F.
Published: June 2017

This work presents new surface modified nanoparticles (SMN) that act as internal breakers for viscoelastic surfactant (VES) based fluids. Breaking profile is a key performance feature of a fracturing fluid. In addition to providing greater application latitude at high temperatures, the proposed solution is suited for gas wells or where there is less likelihood of encountering formation crude oil, which could also act as breaker for VES fluids.

The SMNs were prepared by organically modifying nanoparticles with specific surface capping agents that have functional groups with the ability to bind on to their surfaces by chemical or physical interactions. The base VES fluid was prepared from a mixture of sea water, ionic strength agents and a viscoelastic surfactant formulation. Varying amounts of SMNs were added to the base fluid and mixed vigorously to form a homogeneously dispersed fluid. The viscosities of the base fluid without SMNs and with varying amount of SMNs were monitored over time at fixed temperature to observe the breaking profile.

The base fluid consisting of VES dispersed in sea water with ionic strength agent exhibits stable viscosity for prolonged times. Compared to base fluid, addition of bare nanoparticles marginally improves the fluid's viscosity, although, the fluid does not break down to very low viscosity within desired time for convenient flowback operations. Slow viscosity drop is ideal from a fracturing fluid point of view that helps in efficiently placing the proppants inside of created fractures and eventual fluid cleanup. However, without the organically modified nanoparticles, the viscosity is too stable causing the post fracturing cleanup to be too slow. With the SMN the viscosity drop could be controlled and achieved in relatively shorter time. Further, with these breaker control over breaking time is also achievable. The SMN internal breakers interact with the worm like micelles and disrupt the gel formed by these elongated micellar structures.

The surface modified nanoparticles with a functional capping agent alters the way the nanoparticles interact with the wormlike micelles from electrostatic interactions to hydrophobic-hydrophobic interactions. This change provides an efficient mechanism for breaking the VES base fluids in absence of any external breaker with high temperature latitude.
A Multispecies Collecting Strategy for Crop Wild Relatives Based on Complementary Areas with a High Density of Ecogeographical Gaps
Authors: García Rosa M. , Parra‐Quijano Mauricio , Iriondo José M.
Published: June 2017

Amidst the general concern about the need to conserve crop wild relatives (CWR) as a source of genetic diversity potentially useful in crop breeding, recent studies have assessed global gaps in CWR conservation using predictive distribution approaches. However, few options are available to downscale such studies and conduct efficient seed‐collecting expeditions in specific target areas for ex situ conservation. A new type of optimized collecting design (OCD) to determine priority areas for collecting CWR is presented to fit this purpose. The new approach is based on the principles of complementarity and ecogeographical representativeness of ex situ collections, using ecogeographical variation as a proxy for genetic diversity of adaptive value. It aims to offer a collecting strategy that captures the maximum genetic diversity of adaptive value at a minimum cost. Ninety‐eight priority species related to cereal and legume crops, selected by the Spanish National Strategy for CWR Conservation, were targeted to illustrate this approach. The analysis resulted in a ranking of 10‐ × 10‐km areas containing decreasing richness of complementary ecogeographical gaps of selected CWR taxa. The top 10 complementary areas were overlapped with the Spanish Sites of Community Importance of the Natura 2000 network to prioritize collection in areas not covered by the network, which would be more exposed to habitat destruction and other anthropic risks. This new kind of OCD allows collectors to efficiently sample nonrepresented populations of many species growing in adaptive scenarios within a relatively reduced area at the same time.
Maize Yield as a Function of Water Availability across Precipitation Years in the North China Plain
Authors: Liu Zhandong , Qin Anzhen , Zhang Jiyang , Sun Jingsheng , Ning Dongfeng , Zhao Ben , Xiao Junfu , Liu Zugui , Duan Aiwang
Published: June 2017

Crop water production functions require precise knowledge of crop productivity across a wide range of soil water availability (WA). Field studies have demonstrated the yield response of maize (Zea mays L.) to WA, but the relationship has not been quantified across various precipitation years in the North China Plain (NCP). This study was conducted to investigate the effects of the simulated interannual variability in precipitation on maize yield in a winter wheat (Triticum aestivum L.) –summer maize double‐cropping system in the NCP, in 2014 and 2015. A rainfall simulator system was used to simulate contrasting precipitation years, including wet, normal, normal‐dry, and dry years. A fixed amount of 70 mm irrigation was applied at different growth stages of maize, including at planting (I70), at planting and tasseling (VT) stages (I140), and at planting, VT, and milk stages (I210). The objective was to quantify the relationships among crop production, water use, and WA for maize. We found that I210 improved soil water storage (SWS, mm) by 19 to 36% in the midseason of normal‐dry and dry years but had no effect in normal and wet years, compared with I70. Crop evapotranspiration (ETc, mm d−1) was least in the dry year with the I70 treatment and differed with maize growth phases, with the peak occurring midseason for maize in both years. Regression analyses showed that ETc was negatively related to SWS but positively related to WA. A quadratic function described grain yield responses to WA and ETc, with total WA of 478 mm and daily mean ETc of 5.1 mm d−1 producing greatest grain yield. With yield response function acquired, we conclude that target maximum yield of 11.6 Mg ha−1 can be achieved after probability of exceedance of precipitation equals 18 with irrigation water requirement applied.
Lidocaine overdose after continuous systemic administration for postoperative analgesia
Authors: FRANCHINA Sébastien , DEMEILLIERS‐PFISTER Gaelle , VEBER Benoit , DUREUIL Bertrand , COMPERE Vincent
Published: June 2017

We report the case of a 77‐year‐old male who had elective duodenopancreatectomy surgery. As part of a multimodal analgesia strategy a continuous infusion of lidocaine was administered peri‐operatively. Surgery was uneventful. On admission to post‐operative Intensive Care Unit (ICU), the patient presented with progressive neurological and haemodynamic failure due to a lidocaine overdose made by an error in the continuous systemic administration. Once the diagnosis was established, an infusion of lipid emulsion resulted in almost immediate haemodynamic recovery; full neurological recovery was however delayed for some hours. Continuous intravenous infusions of lidocaine can lead to systemic toxicity, therefore training in lidocaine administration, diagnosis of toxicity and its management are essential for all staff involved in the care of these patients.
Evaluation of multiple-locus variable-number tandem repeat analysis (MLVA) for genotyping of Escherichia coli isolated from Karaj River
Authors: Ranjbar Reza , Mostafavi Samaneh Shokouhi , Memariani Hamed
Published: June 2017

Most microbiological water quality regulations rely upon the detection of indicators of fecal pollution, such as coliform bacteria, or more specifically Escherichia coli. In order to further understand the source, fate, and implications for water quality regulation, environmental E. coli isolates should be assessed genetically to observe various levels of genotypic diversity. Multiple-locus variable-number tandem repeat (VNTR) analysis (MLVA) is a novel, simple and inexpensive polymerase chain reaction (PCR) based genotyping method which relies on the detection of different copy numbers inside each VNTR locus. In this study, we evaluated MLVA as a tool for the genotyping of E. coli strains of water samples collected from the Karaj River, Iran. Overall, high genetic diversity was observed among environmental E. coli isolates. We also proved the feasibility of MLVA as a complementary or even future replacement genotyping method for the average routine laboratory.
Ultrasound enhanced heterogeneous activation of peroxymonosulfate by a Co-NiOx catalyst
Authors: Wei Chenmo , Zhang Jing , Zhang Yongli , Zhang Gucheng , Zhou Peng , Li Wenshu , Liang Juan , Liu Ya , Zhang Wei
Published: June 2017

Sulfate radical-based advanced oxidation processes have had considerable attention due to the highly oxidizing function of sulfate radicals (SO4−·) resulting in acceleration of organic pollutants degradation in aqueous environments. A Co-Ni mixed oxide nanocatalyst, which was prepared by the sol-gel method, was employed to activate peroxymonosulfate (PMS, HSO5−) to produce SO4−· with Acid Orange 7 (AO7) selected as a radical probe. The catalyst was characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FT-IR) and transmission electron microscopy (TEM). The characterization results indicated that the ingredient of the catalyst had been changed and the amount of surface hydroxyl increased significantly with the addition of Ni. Therefore, it proved that Co-NiOx catalyst was more effective than CoOx to activate PMS. Moreover, ultrasound (US) can increase the degradation rate of AO7 and US/Co-NiOx/PMS system. This study also focused on some synthesis parameters and the system reached the maximum efficiency under the condition when [PMS] = 0.4 mM, [catalyst] = 0.28 g/L, Pus = 200 W. The AO7 removal in these systems follows first order kinetics. Last but not least, quenching studies was conducted which indicated that the amount of hydroxyl radicals (·OH) increases with the increase of initial pH and SO4−· was the primary reactive oxidant for AO7 degradation.
A novel biochar from Manihot esculenta Crantz waste: application for the removal of Malachite Green from wastewater and optimization of the adsorption process
Authors: Beakou Buscotin Horax , El Hassani Kaoutar , Houssaini Mohammed Amine , Belbahloul Mounir , Oukani Elhassan , Anouar Abdellah
Published: June 2017

The adsorptive removal of Malachite Green (MG) by a novel biochar namely Cassava Rind Carbon (CRC) was studied in a batch system. Moreover, Box-Behnken Response Surface Methodology was used to optimize operating conditions of the adsorption process. Characterization was done by Thermo Gravimetric Analysis (TGA), Attenuated Total Reflectance Fourier Transform Infra-Red Spectroscopy (ATR/FTIR), Brunauer–Emmett–Teller (BET) surface area, Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD) and pH zero charge point (pHZCP). The pseudo-second-order model and Langmuir model provided the best fit for kinetic and isotherm, respectively. The maximum capacity of dye adsorbed was 932.98 mg/g at 25 °C. The influence of temperature, the mass of adsorbent and the concentration of dye was studied. The optimal amount of adsorbed MG was 1,363.58 mg/g corresponding to 50 °C, 5 mg of CRC and 150 mg/L of dye. According to the high performance exhibited by CRC in this study, Manihot esculenta Crantz waste can be used as a better and low-cost biomass for wastewater decolourization.
Risk Factors for Acquisition of Fluoroquinolone or Aminoglycoside Resistance in Addition to Carbapenem Resistance in Pseudomonas aeruginosa
Authors: Kosai Kosuke , Kaku Norihito , Uno Naoki , Saijo Tomomi , Morinaga Yoshitomo , Imamura Yoshifumi , Hasegawa Hiroo , Miyazaki Taiga , Izumikawa Koichi , Mukae Hiroshi , Yanagihara Katsunori
Published: June 2017

Background:

Carbapenems, fluoroquinolones (FQs), and aminoglycosides (AGs) are key drugs for treating Pseudomonas aeruginosa infections, and accumulation of drug resistances make antibiotic therapy difficult.

Methods:

We evaluated 169 patients with imipenem (IPM)-resistant P. aeruginosa and compared patient background and microbiological characteristics between groups with or without FQ resistance. Similar analyses were performed for AG.

Results:

Of the 169 IPM-resistant strains, 39.1% showed resistance to FQs and 7.1% to AGs. The frequency of exposure to FQs within 90 days previously was higher in the group with FQ resistance (45.5%) than in the group without FQ resistance (13.6%). Similarly, 33.3% of patients in the group with AG resistance had been previously administered AGs, higher than the 7.6% of patients without AG resistance. Frequencies of metallo-β-lactamase (MBL) production were higher in the group with FQ or AG resistance (16.7% or 33.3%) than in the group without FQ or AG resistance (2.9% or 6.4%). Multivariate analyses showed exposures to FQs or AGs were related to the respective resistances. MBL production was a common factor for resistance to FQs or AGs, in addition to IPM-resistant P. aeruginosa.

Conclusion:

As well as promoting appropriate use of antibiotics, MBL production should be detected as a target of intervention for infection control.
The Diagnosis, Management and Complications Associated with Fractures of the Talus
Authors: J.R Barnett , MA Ahmad , W Khan , A. O’ Gorman
Published: June 2017

Fractures of the talus are uncommon injuries that can have devastating consequences. The blood supply to the talus is tenuous and injuries are associated with a higher incidence of avascular necrosis and malunion. Talar neck fractures are the most common fractures. This review looks at the different types of fractures of the talus, particularly focusing on talar neck fractures. The diagnosis and management are discussed as well as the complications.
Masyarakat Adat versus Korporasi: Konflik Sosial Rencana Pembangunan Pabrik Semen di Kabupaten Pati Jawa Tengah Periode 2013-2016
Authors: Suharko Suharko
Published: June 2017

Social confilct between indigenous community of Sedulur Sikep and PT SMS has arisen as a consequence of utilization of karst for cement plant in District of Pati, Central Java since 2010. Using secondary data collected from off line and on line media, and applying Wehr's model of conflict mapping, the article aims to map the conflict. For the corporation, karst can be mined and has a high economic value. For Sedulur Sikep, karst must be concerved because it covers water reservoir that is vital for its agricultural livelihood. From 2010 to 2014, while Sedulur Sikep continuesly rejected the establishment of the plant, PT SMS had completed environmental impact analysis. After Head of Pati district launched an environmental licence for PT SMS in the end of 2014, the two parties of conflict had been head to head in two levels of the administrative courts (PTUN Semarang and PTTUN Surabaya). The verdicts of court are not able to end the conflict yet. Opportunity to solve the conflict will depend on the results of strategic environmental analysis (KLHS) that was decided by the President as a reference for parties who plan to mine karst in mountain of Kendeng Utara, Central Java
Aktivisme Kelas Menengah Berbasis Media Sosial: Munculnya Relawan dalam Pemilu 2014
Authors: Jati Wasisto Raharjo
Published: June 2017

Emergence of voluntarism power that occured in 2014 election have indicated new form of middle class in Indonesia. Analyse on middle class always posited as either "leisure class" or "depedent class". However, in 2014 election, its class hass been transformed itselft as powerful actor from extra-parliamentary arena which able to persuade political succesion with Jokowi as pivotal person. Addresing to recent middle class, using of social media undoubtely become main factor to encouraging political awareness from middle class to be partisan voters. This article using cyberactvism perspective to elaborate more deeply toward middle class power in 2014 election.
BIOACTIVITIES OF THE ETHYL ACETATE EXTRACT OF RHODOCOCCUS QINGSHENGII STRAIN BJC15-A38 AN ENDOPHYTE OF AZADIRACHTA INDICA A. JUSS
Authors: Saini Preeti , Gangwar Madhurama , Kaur Amrinder
Published: June 2017

Objective: This study evaluated the antidiabetic activities of the ethyl acetate-methanol (4:1) extract (EA) of Rhodococcus qingshengii strain BJC15-A38 supernatant.Methods: In vitro alpha-amylase and alpha-glucosidase inhibitory assays, were used to determine the antidiabetic activity of EA (100, 250, 500, 750 and 1000 μg/ml). Also, the total phenol content of the extract was determined, followed by understanding the mode of α-amylase inhibition.Results: The crude extract from Azadirachta indica A. Juss. endophytic actinomycete Rhodococcus qingshengii strain BJC15-A38 was found to have significant inhibition against α-amylase (IC50 = 65.93 µg/ml) and α-glucosidase (IC50 = 929.56 µg/ml). The total phenol content of the crude was found to be 97.25±6.47 and 15.40±0.43 mg/g of the extract in terms of catechol and gallic acid equivalents respectively. Purification of the extract was carried out using silica gel column chromatography. Kinetic analysis revealed the mixed competitive with mixed competitive of inhibition towards α-amylase.Conclusion: The findings suggest that the extract of Rhodococcus qingshengii strain BJC15-A38 possesses antidiabetic effects.