bluuebunny/crossref_metadata_2025 huggingface dataset:
Logística de combustíveis e análise envoltória de dados: avaliação do desempenho de uma rede de postos do Alto Paranaíba e triâgulo mineiro
Authors: Peixoto Maria Gabriela Mendonça , Lopes Bruno Eduardo Silva , Arantes Vagner Alves , Campos Larissa Sousa , Mendonça Maria Cristina Angélico , Musetti Marcel Andreotti
Published: September 2016

O objetivo deste trabalho envolve avaliar o desempenho dos processos de escoamento de combustíveis de uma rede formada por oito postos, localizada na região do Triângulo Mineiro e Alto Paranaíba, por meio da aplicação da técnica de Análise Envoltória de Dados (DEA). Para alcançar este objetivo, a eficiência foi calculada por meio da aplicação do modelo CCR com orientação para o output e, para tanto, foram utilizados dados secundários referentes aos anos de 2012 e 2013. O método de pesquisa utilizado foi o quantitativo, com um breve complemento da pesquisa qualitativa, e abordagem de pesquisa exploratória; foram realizadas entrevistas sem a utilização de um questionário formalizado, via conversas de caráter profissional. Dos resultados obtidos, cabe destacar que apenas três, das oito DMUs, atingiram a fronteira de eficiência, isto é, 2 e 4, em 2012, e 2 e 6, em 2013. Neste contexto, pôde-se observar, portanto, importantes indícios de que a localização das DMUs, e o porte de cada uma delas, não necessariamente exerce influência sobre a eficiência, mas sim em relação ao volume movimentado.
The Temple of Mysterious Virtue – 29th anniversary celebrations, December 27 2013 – Jan 31st 2014, Singapore
Authors: Graham Fabian , Graham Fabian
Published: September 2016

Since the mid-1990s, Singapore’s Chinese religious landscape has seen the rapid development and popularisation of Netherworld spirit medium (tang-ki) cults based around the channelling and worship of two Underworld deities, Tua Ya Pek and Di Ya Pek. Emphasizing Earthly morality and post-mortal punishments in the Underworld, the tradition has developed a distinctive ritual and material culture. The Temple of Mysterious Virtue illustrates this culture, is broadly representative of successful tang-ki temples where both Underworld and Heaven deities are channelled in a multi-ethnic environment, and where orthodox Taoist priests and tang-ki mutually reinforce each other’s legitimacy through ritual cooperation.
Influence of N-vynilcarbazole on the photopolymerization process and properties of epoxy-acrylate interpenetrating polymer networks
Authors: Samoilenko Tetiana F. , Iarova Natalia V. , Ostapiuk Svitlana M. , Tkalich Maksym H. , Vorontsova Liubov O. , Klymchuk Dmytro O. , Brovko Oleksandr O.
Published: September 2016

Photocured simultaneous epoxy-acrylate interpenetrating polymer networks (IPNs) were formed both under irradiation by UV-lamp and natural sunlight. The conversion degrees of functional groups were calculated by using data obtained from Fourier transform infrared (FTIR) spectroscopy. The influence of N-vynilcarbazole (NVC) as a photosensitizer on the kinetics of IPN photopolymerization was investigated. The conversion degrees of epoxy groups were revealed to increase significantly with the addition of NVC to the given systems. The phase morphology of IPNs was analyzed by optical and scanning electronic microscopy as well as by dynamic mechanical analysis (DMA). The data obtained using DMA method, which was used for analyzing the IPN samples with different component ratios, indicate the formation of both phase-separated and single-phase IPNs. The phase separation is occurred only in NVC-containing 50:50 IPN.
Development of a screening system for inteins active in protein splicing based on intein insertion into the LacZα-peptide
Authors: Neugebauer Maximilian , Böcker Jana K. , Matern Julian C.J. , Pietrokovski Shmuel , Mootz Henning D.
Published: September 2016

Protein splicing by inteins has found diverse applications in biotechnology, protein chemistry and chemical biology. Inteins display a wide range of efficiencies and rates unpredictable from their amino acid sequences. Here, we identified positions T22S and S35 in the LacZα peptide as intein insertion sites that strictly require protein splicing, in contrast to cleavage side-reactions, to allow for complementation of β-galactosidase activity. Both thecis-variant of the M86 mutant of theSspDnaB intein and a split form undergoing proteintrans-splicing gave rise to formation of blue colonies in the β-galactosidase read-out. Furthermore, we report the two novel, naturally split VidaL T4Lh-1 and VidaL UvsX-2 inteins whose N-terminal fragments consist of only 15 and 16 amino acids, respectively. Initial biochemical characterization with the LacZα host system of these inteins further underlines its utility. Finally, we used the LacZα host system to rapidly identify amino acid substitutions from a small randomized library at the structurally conserved intein position 2 next to the catalytic center, that are tolerated for protein splicing activity of the M86 intein. These findings demonstrate the potential of the system for initial testing and directed evolution of inteins.
Serious Gaming in Augmented Reality using HMDs for Assessment of Upper Extremity Motor Dysfunctions
Authors: Cidota Marina A. , Lukosch Stephan G. , Dezentje Paul , Bank Paulina J. M. , Lukosch Heide K. , Clifford Rory M. S.
Published: September 2016

For a better understanding of how different disorders affect motor function, a uniform, standardized and objective evaluation is a desirable goal for the clinical community. We explore the potential of Augmented Reality (AR) combined with serious gaming and free hand tracking to facilitate objective, cost-effective and patient-friendly methods for evaluation of upper extremity motor dysfunction in different patient groups. In this paper, we describe the design process of the game and the system architecture of the AR framework to meet these requirements. Furthermore, we report our findings from two pilot studies we conducted with healthy people aged over 50. First, we present a usability study (n = 5) on three different modalities of visual feedback for natural hand interaction with AR objects (i. e., no augmented hand, partial augmented hand and a full augmented hand model). The results show that a virtual representation of the fingertips or hand improves the usability of natural hand interaction. Secondly, a study about game engagement is presented. The results of this experiment (n = 8) show that there might be potential for engagement, but usability needs to be improved before it can emerge.
Acylindrical hyperbolicity, non-simplicity and SQ\hbox{-}universality of
groups splitting over ℤ
Authors: Button Jack O.
Published: September 2016

We show, using acylindrical hyperbolicity, that a finitely
generated group splitting over

ℤ

${\mathbb{Z}}$

cannot be simple. We also obtain
SQ-universality in most cases, for instance a balanced group (one where
if two powers of an infinite order element are conjugate then they are
equal or inverse) which is finitely generated and splits over

ℤ

${\mathbb{Z}}$

must either be SQ-universal or it is one of exactly seven virtually
abelian exceptions.
Models for New Corrugated and Porous Solar Air Collectors under Transient Operation
Authors: Adnan Abed Qahtan , Badescu Viorel , Ciocanea Adrian , Soriga Iuliana , Bureţea Dorin
Published: September 2016

Mathematical models have been developed to evaluate the dynamic behavior of two solar air collectors: the first one is equipped with a V-porous absorber and the second one with a U-corrugated absorber. The collectors have the same geometry, cross-section surface area and are built from the same materials, the only difference between them being the absorbers. V-corrugated absorbers have been treated in literature but the V-porous absorbers modeled here have not been very often considered. The models are based on first-order differential equations which describe the heat exchange between the main components of the two types of solar air heaters. Both collectors were exposed to the sun in the same meteorological conditions, at identical tilt angle and they operated at the same air mass flow rate. The tests were carried out in the climatic conditions of Bucharest (Romania, South Eastern Europe). There is good agreement between the theoretical results and experiments. The average bias error was about 7.75 % and 10.55 % for the solar air collector with “V”-porous absorber and with “U”-corrugated absorber, respectively. The collector based on V-porous absorber has higher efficiency than the collector with U-corrugated absorber around the noon of clear days. Around sunrise and sunset, the collector with U-corrugated absorber is more effective.
Doctors, chefs or hominin animals? Non-edible plants and Neanderthals
Authors: Hardy Karen , Buckley Stephen , Huffman Michael
Published: September 2016

In 2013, Hardyet al.offered a broad behavioural context for the hypothesis that the ingestion of non-nutritional plants (yarrow and camomile) by Neanderthals was for the purpose of self-medication. Chemical traces of these plants had been detected in samples of dental calculus from Neanderthals at the site of El Sidrón, Spain, along with traces of bitumen and wood smoke, as well as starch granules that showed evidence of roasting (Hardyet al.2012). Subsequently, the presence of traces of resin and a piece of non-edible conifer wood were also identified from these samples (Radiniet al.2016). Although not rejecting our interpretation for the presence of these two non-edible plants as evidence of medicinal plant use, two recent articles offer alternative scenarios for why and how those plants may have reached the mouth and, eventually, the dental calculus of the individual concerned. Buck and Stringer (2014) suggest that the plants were not deliberately ingested, and that the traces of yarrow and camomile were in fact embedded in the chyme, or stomach contents, of herbivore prey. Kriefet al.(2015) propose two hypotheses: first, they suggest that the plants could have been used to flavour meat; second, while not ruling out the possibility that they could be medicinal, they argue on a technical point that the plants were not self-administered but were provided by a caregiver. Here, we examine these suggestions and consider their probability and feasibility as alternatives to our original proposal of self-medication.
The Vikings in Ireland: longphuirt and legacy
Authors: Richards Julian D.
Published: September 2016

Viking graves and grave-goods in Ireland is the longawaited outcome of the Irish Viking Graves Project, which ran from 1999–2005. The project originated at a conference held in Dublin in 1995, at which the limited understanding of Viking burials was identified as a significant shortcoming of the Irish archaeological record. Stephen Harrison was appointed as Research Assistant, and began the major task of making sense of the antiquarian records of the Royal Irish Academy. The primary aim of this work was the creation of the first accurate and comprehensive catalogue of all Viking graves and grave-goods in Ireland. With this volume, that aim has been handsomely achieved.
New Palaeolithic and Mesolithic sites in the eastern Aegean: the Karaburun Archaeological Survey Project
Authors: Çilingiroğlu Ç. , Dinçer B. , Uhri A. , Gürbıyık C. , Baykara İ. , Çakırlar C.
Published: September 2016

Despite ongoing fieldwork focusing on the Palaeolithic and Mesolithic periods of the Aegean, the eastern part of this region, especially western Turkey, remains almost entirely unexplored in terms of early prehistory. There is virtually no evidence from this area that can contribute to broader research themes such as the dispersal of early hominins, the distribution of Early Holocene foragers and early forager-farmer interactions. The primary aim of the Karaburun Archaeological Survey Project is to address this situation by collecting data from the eastern side of the Aegean Sea, thereby contributing to the currently debated issues of Aegean and Eastern Mediterranean prehistory.
The first record of Pseudopaludicola atragula Pansonato, Mudrek, Veiga-Menoncello, Rossa-Feres, Martins & Strüssmann, 2014 (Anura: Leptodactylidae) in the state of Goiás, central Brazil
Authors: Andrade Murilo Sousa , Ramalho Werther Pereira , De Carvalho Thiago Ribeiro , Maciel Natan Medeiros
Published: September 2016

Pseudopaludicola atragula is one of the most recently described species for the genus. Distributional records for this species were restricted to two muni­cipalities in northwestern São Paulo state. Herein, we extend its distribution range and report the first record of the species in Cerrado areas of the state of Goiás, central Brazil.
Formação de doutores no Brasil e no exterior: impactos na propensão a migrar
Authors: Ramos Milena Yumi , Velho Lea
Published: September 2016

Este texto reflete sobre a formação de doutores no Brasil e no exterior e o engajamento desses recursos humanos qualificados nos fluxos migratórios internacionais. Tal questão é observada a partir dos estudos sobre brain drain e desenvolvimentos teóricos posteriores, incluindo as concepções mais modernas de circulação de talentos e diásporas intelectuais. Verifica-se que a propensão de doutorandos brasileiros a migrar tem sido, historicamente, e ainda é comparativamente baixa. Mudanças recentes na política de formação de doutores no Brasil, reduzindo a oferta de bolsas para treinamento pleno no exterior, vêm reforçando essa tendência. Os impactos dessa política na dinâmica de produção de conhecimento no país e sua influência nas oportunidades de inserção de pesquisadores brasileiros em redes globais de pesquisa permanecem, no entanto, desconhecidos.
Optimizing Safety of Iliac Bone Harvest Using an Acumed Drill: A Simulated Radiographic Study of 100 Patients
Authors: Stranix John T. , Cuzzone Daniel , Ly Catherine , Topilow Nicole , Runyan Christopher M. , Ream Justin , Flores Roberto L.
Published: September 2016

Objective

To determine the potential risk of visceral injury during Acumed drill iliac crest cancellous bone graft harvest.

Design

Radiographic iliac crest anatomic analysis with simulated drill course to measure cancellous bone available for harvest and proximity of vulnerable pelvic structures.

Setting

Single institution, tertiary care university hospital.

Patients and Participants

One hundred pelvic computed tomography scans performed on children 8 to 12 years old without traumatic or neoplastic pathology.

Interventions

Radiographic simulation of Acumed drill course within iliac bone.

Main Outcome Measures

(1) Potential for pelvic visceral injury. (2) Volume of cancellous bone safely available for harvest.

Results

Superior and medial cortical thickness at the reference point remained stable across age groups; however, lateral cortical thickness increased with age (3.13 to 3.74 mm, P < .001). Cancellous bone width increased with age at all depths measured ( P < .001). Through radiographic simulation, the drill could reach the bowel in 4% of cases and only through gross deviation (>30°) from the plane of the ilium. There were no cases of simulated bowel perforation within 3 cm of the reference point. The maximum cancellous volume safely harvested increased with age: 24 cc in 8-year-olds to 36 cc in 12-year-olds ( P < .001).

Conclusions

Acumed assisted iliac crest bone graft harvest is a safe technique in which substantial amount of cancellous bone can be obtained. The low risk of bowel perforation can be further minimized by limiting the depth of drill bit penetration to less than 3 cm.
Incidência de Neoplasia Intra-Epitelial Cervical Registrada no Posto Central de Tangará da Serra-MT no Período de 2009 a 2011
Authors: Pedrozo Aniely Loiza , Medina Loriane Tagliari
Published: September 2016

O interesse pelo Papilomavírus Humano surgiu devido à associação do vírus com o câncer cervical. Atualmente, consiste em um grave problema de saúde pública por ser uma das principais causas de mortalidade mundial. O objetivo do presente trabalho é quantificar os números de casos de neoplasia intra-epitelial cervical registrados no Posto Central, entre os anos de 2009 a 2011, em mulheres a partir dos 18 anos, moradoras do município de Tangará da Serra-MT. As informações foram obtidas no banco de dados implantado no Posto Central de Tangará da Serra-MT, o SISCOLO (Sistema de Informação do Câncer do Colo do Útero). A amostra foi constituída de 28 mulheres, obedecendo aos critérios propostos de inclusão e exclusão. Após a análise dos dados, verificou-se que, no ano de 2009, quinze mulheres apresentavam neoplasia intra-epitelial cervical (NIC), 53% caracterizada por NIC III, 20% NIC I e 27% NIC II. Em 2010, metade da amostra apresentava NIC II e a outra metade NIC III. Já em 2011, existiam registros de 7 mulheres com neoplasia intra-epitelial cervical, sendo que NIC II e NIC III apresentaram distribuição semelhante e NIC I apresentou menor incidência. Conclui-se que a incidência de neoplasia intra-epitelial cervical em mulheres de Tangará da Serra-MT tem diminuído com o passar dos anos, não mostrando variação na idade das mulheres afetadas pelas lesões,
que se encontram dentro do grupo de adulta-idosa. Ressalta-se a importância da detecção precoce das lesões precursoras da cérvice, uma vez que, quando diagnosticadas nos estágios iniciais das neoplasias intra-epiteliais cervicais, aumentam-se as possibilidades de cura e evita-se a progressão da lesão para carcinoma invasivo.
Participación de la comunidad internacional en la construcción de Laboratorios de Paz en Colombia: El caso de Viotá, Cundinamarca
Authors: Cepeda Ladino Julio César
Published: September 2016

Los Laboratorios de Paz han sido programas de cooperación al desarrollo por parte de actores internacionales como la Unión Europea en países con conflicto armado interno como Colombia. Concretamente, los diálogos de paz adelantados en el segundo decenio del siglo XXI entre el Gobierno Nacional y la guerrilla de las FARC permiten considerar la factibilidad de construir Laboratorios de Paz con la participación de la comunidad internacional en escenarios de postconflicto armado en Colombia. El caso del municipio de Viotá, Cundinamarca, el cual se encuentra en un proceso complejo de reconstrucción de su tejido social, representa la oportunidad de diseñar, formular e implementar un Laboratorio de Paz capaz de ser sostenible en una etapa de postconflicto en el país. Para ello, será fundamental contar con el apoyo de actores sociales e instancias de carácter local, regional, nacional e internacional en aras de que esta experiencia pueda ser replicada en otros municipios de Colombia.
George Ridpath’s use of evaluative adjectives as manipulative and persuasive strategies during the War of the Spanish Succession (1710-1713)
Authors: Sánchez Ruiz Raquel
Published: September 2016

This paper analyses evaluative adjectives in George Ridpath’s political writings during the War of the Spanish Succession (1710-1713), in a corpus which comprises two journals, four years and 291 numbers, with the purpose of examining how this author used language as a weapon to shape and manipulate Great Britain’s public opinion during the Stuart period. For that, I have employed Wilson’s approach to Political Discourse Analysis (2001) and van Dijk’s polarisation (1999) as well as Allan and Burridge’s understanding of euphemism and dysphemism (1991). The results permit to value Ridpath’s contribution as a very influential but controversial pamphleteer who wrote about the War of the Spanish Succession within Great Britain’s context.
An analysis of the textbooks for teaching English for medical purposes in the former Degree in Medicine at the University of Las Palmas de Gran Canaria
Authors: Vera-Cazorla María Jesús
Published: September 2016

The process of building the European Higher Education Area has fostered the internationalization of higher education and placed special emphasis on the prominent role of learning foreign languages. The implementation of the new degrees has included the so-called language requirement that must be taken into account when developing new teaching materials for the grades. In this paper we analyse various methodological and educational aspects in the six textbooks that were used to teach English for Health Sciences, ten optional subjects of the former Degree in Medicine. The ultimate goal of the analysis of the aforementioned books is to develop a taxonomic model that serves for the creation of supporting materials to be used in the optional subject of the new Degree in Medicine at the University of Las Palmas de Gran Canaria.
Angielski handel zewnętrzny (i kolonialny) w dobie wojny o imperium (1740–1765)
Authors: Robak Piotr
Published: September 2016

Artykuł prezentuje rozwój angielskiego handlu zewnętrznego (i kolonialnego) w okresie dwóch kontynentalnych konfliktów zbrojnych, toczonych także na morzach i w koloniach, w które zaangażowana była Wielka Brytania w latach 1739–1763. Zaprezentowana analiza tego handlu została oparta na szacunkowych danych statystycznych za lata 1740–1765 (stąd ramy chronologiczne artykułu) i przeprowadzona w odniesieniu do dwóch głównych obszarów multilateralnej wymiany: europejskiej i oceanicznej, w tym kolonialnej. Z poczynionych przez Autora ustaleń wynika, że rynki europejskie utrzymały dominującą pozycję w angielskim handlu zewnętrznym w omawianym okresie, choć rozwijały się w sposób zróżnicowany regionalnie i w ogólnym dodatnim bilansie mniej dynamicznie niż na rynkach zamorskich (i kolonialnych). Te bowiem, rozłożone na obszarach: atlantyckim i azjatyckim, odnotowały istotny wzrost wartości i wielkości wymiany, zwłaszcza w odniesieniu do rynków amerykańskich (Ameryka Północna i Indie Zachodnie), mimo że w ogólnym bilansie zachowały stały charakter deficytowy. Jednakże oceaniczny (i kolonialny) import decydował w dużej mierze o rosnącym europejskim reeksporcie angielskiego handlu zewnętrznego, pozwalając mu utrzymać stały dodatni bilans handlowy we wspomnianych latach. Na powyższe zróżnicowanie wielkości i dynamiki rozwoju angielskiego handlu zewnętrznego miały oczywisty, choć nie wyłączny, wpływ toczące się długotrwałe zmagania wojenne. Na niektórych rynkach europejskich (zwłaszcza euroatlantyckim i lewantyńskim) przyniosły one widoczny regres obrotów, natomiast w sferze pozaeuropejskiej okazały się często czynnikiem sprzyjającym intensyfikacji wymiany handlowej, co niewątpliwie było efektem brytyjskiej dominacji zbrojnej na morzach i w koloniach. Ta sytuacja ukształtowała w pewnej mierze przekonanie brytyjskich merkantylistów i polityków, głównie od lat pięćdziesiątych XVIII w., że wojna służy rozwojowi angielskiego handlu zamorskiego.
Health Care Use and Spending for Medicaid Enrollees in Federally Qualified Health Centers Versus Other Primary Care Settings
Authors: Nocon Robert S. , Lee Sang Mee , Sharma Ravi , Ngo-Metzger Quyen , Mukamel Dana B. , Gao Yue , White Laura M. , Shi Leiyu , Chin Marshall H. , Laiteerapong Neda , Huang Elbert S.
Published: September 2016

Objectives. To compare health care use and spending of Medicaid enrollees seen at federally qualified health centers versus non–health center settings in a context of significant growth.

Methods. Using fee-for-service Medicaid claims from 13 states in 2009, we compared patients receiving the majority of their primary care in federally qualified health centers with propensity score–matched comparison groups receiving primary care in other settings.

Results. We found that health center patients had lower use and spending than did non–health center patients across all services, with 22% fewer visits and 33% lower spending on specialty care and 25% fewer admissions and 27% lower spending on inpatient care. Total spending was 24% lower for health center patients.

Conclusions. Our analysis of 2009 Medicaid claims, which includes the largest sample of states and more recent data than do previous multistate claims studies, demonstrates that the health center program has provided a cost-efficient setting for primary care for Medicaid enrollees.
Work-Related Depression in Primary Care Teams in Brazil
Authors: da Silva Andréa Tenório Correia , Lopes Claudia de Souza , Susser Ezra , Menezes Paulo Rossi
Published: September 2016

Objectives. To identify work-related factors associated with depressive symptoms and probable major depression in primary care teams.

Methods. Cross-sectional study among primary care teams (community health workers, nursing assistants, nurses, and physicians) in the city of São Paulo, Brazil (2011–2012; n = 2940), to assess depressive symptoms and probable major depression and their associations with job strain and other work-related conditions.

Results. Community health workers presented higher prevalence of probable major depression (18%) than other primary care workers. Higher odds ratios for depressive symptoms or probable major depression were associated with longer duration of employment in primary care; having a passive, active, or high-strain job; lack of supervisor feedback regarding performance; and low social support from colleagues and supervisors.

Conclusions. Observed levels of job-related depression can endanger the sustainability of primary care programs.

Public Health implications. Strategies are needed to deliver care to primary care workers with depression, facilitating diagnosis and access to treatment, particularly in low- and middle-income countries. Preventive interventions can include training managers to provide feedback and creating strategies to increase job autonomy and social support at work.
Tuberculosis in Jails and Prisons: United States, 2002−2013
Authors: Lambert Lauren A. , Armstrong Lori R. , Lobato Mark N. , Ho Christine , France Anne Marie , Haddad Maryam B.
Published: September 2016

Objectives. To describe cases and estimate the annual incidence of tuberculosis in correctional facilities.

Methods. We analyzed 2002 to 2013 National Tuberculosis Surveillance System case reports to characterize individuals who were employed or incarcerated in correctional facilities at time they were diagnosed with tuberculosis. Incidence was estimated with Bureau of Justice Statistics denominators.

Results. Among 299 correctional employees with tuberculosis, 171 (57%) were US-born and 82 (27%) were female. Among 5579 persons incarcerated at the time of their tuberculosis diagnosis, 2520 (45%) were US-born and 495 (9%) were female. Median estimated annual tuberculosis incidence rates were 29 cases per 100 000 local jail inmates, 8 per 100 000 state prisoners, and 25 per 100 000 federal prisoners. The foreign-born proportion of incarcerated men 18 to 64 years old increased steadily from 33% in 2002 to 56% in 2013. Between 2009 and 2013, tuberculosis screenings were reported as leading to 10% of diagnoses among correctional employees, 47% among female inmates, and 42% among male inmates.

Conclusions. Systematic screening and treatment of tuberculosis infection and disease among correctional employees and incarcerated individuals remain essential to tuberculosis prevention and control.
Changes to the Design of the National Health Interview Survey to Support Enhanced Monitoring of Health Reform Impacts at the State Level
Authors: Blewett Lynn A. , Dahlen Heather M. , Spencer Donna , Rivera Drew Julia A. , Lukanen Elizabeth
Published: September 2016

Pursuant to passage of the Patient Protection and Affordable Care Act, the National Center for Health Statistics has enhanced the content of the National Health Interview Survey (NHIS)—the primary source of information for monitoring health and health care use of the US population at the national level—in several key areas and has positioned the NHIS as a source of population health information at the national and state levels.

We review recent changes to the NHIS that support enhanced health reform monitoring, including new questions and response categories, sampling design changes to improve state-level analysis, and enhanced dissemination activities.

We discuss the importance of the NHIS, the continued need for state-level analysis, and suggestions for future consideration.
Posterior Tibial Arterial System Deficiency Mimicking Chronic Exertional Compartment Syndrome
Authors: Lavery Kyle P. , Parcells Bertrand W. , Hosea Timothy
Published: September 2016

Case:

A 15-year-old female competitive high school basketball player presented as an outpatient with a 3-month history of bilateral exertional calf pain. Patient history and compartment pressure measurements were consistent with the diagnosis of chronic exertional compartment syndrome, and the patient underwent bilateral fasciotomies. Postoperatively, her symptoms recurred and she was found to have a deficient posterior tibial arterial system bilaterally, as confirmed on advanced imaging.

Conclusion:

We advocate the careful consideration of vascular etiologies in athletes who present with exertional leg pain.
Balancing Artificial Lift, Chemical Injection To Achieve Production Goals Over Life of Well
Authors: Phelps Rainer
Published: September 2016

Technology Update

Production engineers are often asked to manage both the artificial lift (AL) system and the upstream chemical injection program for a project. Frequently the two services are managed separately, without considering the implications of each on the achievement of targeted levels of high-quality fluid production over the life of the well. For example, how do chemical treatments for scale, asphaltenes, and paraffin affect the AL system? How does one maintain integrity while protecting the AL system metallurgy from corrosion?

One answer is to look at production holistically in an approach called production enrichment to determine what is necessary to meet production objectives without jeopardizing the electrical submersible pump (ESP) equipment. This approach requires

Integrating chemical and AL expertise to understand the chemical composition of fluid streams and their effect on the AL system, and to deploy the best solution for chemical injection and AL

Meeting production levels and fluid quality objectives over the life of the well

Avoiding nonproductive time, well intervention, and equipment replacement costs

Confirming safety and environmental sustainability

Holistic Approach

The first step in production enrichment is analyzing the fluids and operational parameters of the well to fully understand the reservoir and wellbore challenges, and the production system requirements. The fluid analysis and production operation assessment confirm that the chemical treatment addresses the production fluid challenges and the AL system metallurgy.

Integrated, remote monitoring and automation of the upstream chemical program and the AL system help ensure that chemical injection rates remain at optimal levels and the AL system remains unencumbered by scale, asphaltenes, or paraffin, and runs at its best efficiency point (Fig. 1). Additionally, remote monitoring and automation substantially reduce trips to wellsites to check chemical tank levels and artificial lift parameters.

An integrated incident review and analysis process optimizes field management. Safety and environmental sustainability are enhanced, and health, safety, and environmental risk is mitigated, by using chemistries specifically designed to minimize the environmental impact of production operations, and by safer AL systems that have less potential for surface leaks and emissions.

Operators are reaping the benefits of production enrichment in applications ranging from enhanced oil recovery (EOR) CO2 flooding to shale plays and ultradeepwater.
Do Data-Mining Methods Matter? A Wolfcamp Shale Case Study
Authors: Wilson Adam
Published: September 2016

This article, written by Special Publications Editor Adam Wilson, contains highlights of paper SPE 173334, “Do Data-Mining Methods Matter? A Wolfcamp Shale Case Study,” by Ming Zhong, SPE, Baker Hughes; Jared Schuetter and Srikanta Mishra, SPE, Battelle Memorial Institute; and Randy F. LaFollette, SPE, Baker Hughes, prepared for the 2015 SPE Hydraulic Fracturing Technology Conference, The Woodlands, Texas, USA, 3–5 February. The paper has not been peer reviewed.

Data mining for production optimization in unconventional reservoirs brings together data from multiple sources with varying levels of aggregation, detail, and quality. The objective of this study was to compare and review the relative utility of several univariate and multivariate statistical and machine-learning methods in predicting the production quality of Permian Basin Wolfcamp shale wells. Methods considered were standard univariate and multivariate linear regression and the advanced machine-learning techniques support vector machine, random forests, and boosted regression trees.

Introduction

In the last few decades, because of the diminishing availability of conventional oil reserves, unconventional reservoirs are fast becoming the mainstream source of energy resources. In the meantime, with technology advances in data collection, storage, and processing, the oil and gas industry, along with every other technical industry, is experiencing an era of data explosion. One of the more frequently asked questions is, “How can these massive amounts of data in unconventional jobs be used to understand better the relationship between operational parameters and well production?” To tackle this problem, raw data usually need to be pulled from multiple data sources, a data-cleanse job needs to be run, and the information needs to be merged into a joint data set for subsequent analysis.

Here, a data set from Permian Basin Wolfcamp shale wells is used as a case study to illustrate the implementation of several popular analytic methods in data mining. The study area is within the Delaware basin in west Texas. Fig. 1 is color-contoured on the top of the Wolfcamp and highlights the basin structure in the greater area, with the deep basin in purple and the shallowest Wolfcamp contours in red. Well locations are bubble mapped on top of the contours. The bubble-map color scheme has the best monthly oil production per completed foot of lateral (log 10 scale) shown in red and the poorest wells shown in purple.

The data set contains 476 Wolfcamp shale horizontal wells with production histories from the Permian Basin. Three production metrics serve as target variables in each method: the cumulative oil production of the first 12 producing months in barrels, the maximum monthly oil production of the first 12 producing months in barrels (MMO12), and the derived production efficiency by MMO12 over the total lateral length in barrels per foot.

Well-architecture variables included operator, well azimuth, drift angle, true vertical depth in feet, and cumulative lateral length in feet.
Integrated Approach to Sand Management in Mature-Field Operations
Authors: Carpenter Chris
Published: September 2016

This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 174180, “Integrated Approach to Sand Management in Mature-Field Operations,” by M. Ruslan and P.Y. Lee, Dong Energy, prepared for the 2015 SPE European Formation Damage Conference, Budapest, Hungary, 3–5 June. The paper has not been peer reviewed.

An integrated approach to sand management is crucial to address sanding risk in producers and injectors in a North Sea mature field. The concept incorporates the Lean Six Sigma approach and is developed with a major focus on the rehabilitation of mature fields, where each barrel of oil counts and uncertainty (both technical and economical) is an increasing challenge. High decline in productivity and increased operational challenges are common issues for mature fields.

Introduction

The Siri asset comprises a series of marginal mature fields. They are located 220 km from the coast parallel to the northwestern edge of the Danish sector of the North Sea, with average water depth of 60 m. The relatively weak cemented fine- to very-fine-grained Paleogene sandstones from the Siri Canyon in the Danish North Sea are characterized by high content of glauconite, occasionally greater than 30%. The high glauconite content is a result of the sand being stored at the sediment-starved Stavanger platform before being shed into the North Sea by density and mass flows. After deposition, controlled by seafloor topography and pre-existing gullies, the sands experience remobilization in various degrees.

The reservoir quality is generally good, with high porosities and high permeability. The asset is currently under waterflooding secondary recovery, with the main objective being pressure support and displacement efficiency in respective parts of the reservoir. Multiple enhanced-oil-recovery projects are ongoing or under evaluation, such as simultaneous water and gas injection and huff ’n’ puff gas injection.
Una representación basada en Semat y RUP para el Método de Desarrollo SIG del Instituto Geográfico Agustín Codazzi
Authors: Durango Vanegas Claudia Elena , Zapata Jaramillo Carlos Mario
Published: September 2016

Los Sistemas de Información Geográfica (SIG) constituyen un apoyo importante para el análisis y solución de problemas en áreas, como: salud, hidrología, ingeniería y gestión territorial, entre otras. El desarrollo metodológico de los SIG no incluye especificaciones propias; por el contrario, son propuestas modificadas de otros métodos, que contienen los mismos productos de trabajo, actividades y recursos de los métodos tradicionales de desarrollo, tales como el Rational Unified Process (RUP). Uno de esos métodos es del Instituto Geográfico Agustín Codazzi (IGAC). Semat (Teoría y Métodos de la Ingeniería de Software) es una iniciativa que ayuda a capturar elementos esenciales y comunes, universales a todos los esfuerzos de desarrollo de software. En busca de las especificaciones propias de los métodos de desarrollo de SIGs, en este artículo se propone una representación basada en el núcleo de Semat del método IGAC para identificar la relación con el método tradicional Proceso Unificado de Racional (RUP). Con esta representación es posible determinar las prácticas asociadas con el método IGAC que se heredan de los métodos tradicionales.
Fitorremediación de mercurio a partir de elodea sp
Authors: Jaramillo F. María Consuelo , Zapata O. Luisa Fernanda , Marulanda L. Tatiana
Published: September 2016

El mercurio es un contaminante derivado de la minería, el cual es altamente tóxico para plantas, animales y el ser humano.  El mercurio se bioacumula en plantas y peces que son de consumo humano. En esta investigación se evaluó la capacidad de biorremediación del ion mercurio por la planta macrofita Elodea sp. Tallos de 35-36 cm de la planta fueron sometidos a diferentes concentraciones de solución de HgCl2. Las concentraciones evaluadas fueron de 0,39mg/ml, 1,55mg/ml y de 6,25mg/ml, aunque la planta Elodea sp mostró un gran desempeño en las tres soluciones, con la concentración de 1,55mg/ml obtuvo un porcentaje de remoción del 100%, lo cual lo convierte en las condiciones a las que debe ser removido el mercurio.
Identificación y control de un Vehículo Aéreo no Tripulado tipo Quadcopter
Authors: Muñoz Gutiérrez Pablo Andrés , Giraldo Suárez Eduardo , Bonilla Becerra Jhon Abraham
Published: September 2016

En este artículo se describe el modelo dinámico de un vehículo aéreo no tripulado tipo QuadCopter, se linealiza alrededor de un punto de operación y se aplica un controlador por realimentación de estados que logra llevar el sistema a un estado estable en 100ms. Se aplica un algoritmo de identificación MIMO por mínimos cuadrados al modelo no linealizado obteniendo un error medio cuadrático de 0.2562 grados en una simulación de 50s; se aplica un controlador LQR que logra controlar e identificar el sistema inicial en un tiempo de 3.7s y se compara con un controlador PID convencional obteniendo como resultado un menor tiempo de establecimiento y mejor seguimiento de referencia en el controlador LQR.
Modelo basado en SIG para el estudio de la mortalidad por enfermedad cerebro-vascular
Authors: Tangarife Villa Carlos Alberto , Londoño Ciro Libardo
Published: September 2016

En los últimos 15 años el estudio para una de las tres primeras causas de muerte a nivel mundial –enfermedad cerebrovascular (ECV)– se caracteriza por utilizar el enfoque epidemiológico tradicional y sus técnicas de análisis estadístico bivariado y multivariado orientadas a identificar su composición según variables de persona y explorar relaciones con sus determinantes pero sin impactar significativamente su ocurrencia, sin embargo, en el presente artículo se identifica como alternativa de análisis la modelación espacio-temporal con SIG a niveles de desagregación detallados; en este sentido el análisis comparativo de los modelos utilizados en los estudios conocidos, desvela el uso de datos y técnicas de análisis espacial básicas para identificar patrones como los evidenciados en los cinturones de diabetes y ECV en USA o el clúster colombiano de enfermedades del aparato circulatorio identificado en la región andina que sugiere un comportamiento similar para la ECV. El panorama anterior demanda la combinación de enfoques con énfasis en sus técnicas de análisis avanzadas –análisis multi-criterio, kriging, interpolación, correlación y regresión espacial– soportadas con SIG y por lo tanto, como contribución final se propone un modelo integrado dirigido a impactar positivamente la mortalidad por ECV.
Alternativas para la detección y monitoreo de amenazas sísmicas basadas en arduino
Authors: Vargas Jiménez Danilo Santiago , Rodríguez Espinosa Erika Vanessa , Otero Foliaco Jair Enrique
Published: September 2016

El objetivo de este documento es exponer algunos proyectos basados en la placa de hardware libre arduino que son utilizados para la detección y/o monitoreo de amenazas sísmicas. La importancia de esta investigación se centra en la identificación de estrategias que hacen uso de herramientas de libre acceso para detección temprana de posibles amenazas, además del monitoreo y búsqueda de personas en catástrofes. Por otro lado, se busca evidenciar los beneficios involucrados en aspectos de tiempo y reacción al momento de interactuar con estas problemáticas. La metodología implementada para cumplir el objetivo, se basó en el rastreo bibliográfico de proyectos de investigación realizados en un periodo no mayor a 5 años. Donde se resaltaba el uso de arduino para gestionar amenazas sísmicas. Dentro de las conclusiones principales de esta investigación, se resalta la evolución constate que presenta los sistemas sísmicos debido al uso de tecnologías emergentes que mejoran la ejecución, utilizando servicios de respuesta como SMS en celulares y/o correo electrónicos.
Correlación de la gestión de riesgos profesionales en la productividad de las empresas del sector cerámico del Valle de Aburra
Authors: Montoya Rivas Gian Paolo , Montoya Rivas Renata , Botero Giraldo Julián
Published: September 2016

La investigación sobre el Análisis y evaluación de Riesgos profesionales para las empresas del sector cerámico del Valle de Aburrá, se fundamenta en la necesidad actual en cuanto al cumplimiento de las normas de Salud e Higiene ocupacional, según la normatividad y las leyes establecidas por los gobiernos, en cada país. Estas regulaciones nacen a partir del control que han realizado los ministerios de salud, frente al tema de incidentes, accidentes, enfermedades profesionales, indemnizaciones por inhabilidades parciales y/o permanentes, que limitan la productividad y recargan las obligaciones económicas y la rentabilidad de las mismas. Productividad es la cualidad o condición de ser productivos. Es la cualidad que indica qué tan bien se están utilizando la mano de obra, el capital, los materiales y la energía. Es un concepto que guía la administración de un sistema de producción y mide su éxito. Partiendo de estas definiciones se hace necesario realizar un análisis de Correlación, el cual según busca medir el grado de asociación entre dos variables dependientes una de otra.
Analysis and projection of runoff variation in three Chinese rivers
Authors: Li Lingqi , Krasovskaia Irina , Xiong Lihua , Yan Lei
Published: September 2016

Runoff variability is investigated separately for the Wei, the Bei, and the Qing Rivers in China with a focus on their respective differences in monthly flow patterns and flow duration curves (FDCs) between years with and without annual runoff deficit. The number of deficit runoff years increased in the Wei River and changed slightly in the Bei and Qing Rivers, respectively. Monthly flow variation patterns and FDCs differ between deficit and non-deficit years. The deficit years generally demonstrate earlier and more dispersed flow maxima. Deficit runoff years are contingent with the negative phase of the Polar-Eurasian Oscillation and vice versa, while generally they show contingency with the positive phase of the SST (Niño 3.4) and vice versa. The correlation between the human activity factors and the weights obtained by decomposing the runoff series into empirical orthogonal functions indicated that the human impact on the runoff variation was detectable: 22–25% in the Wei River, 28% in the Bei River, and negligible in the Qing River. We projected FDCs by weighting the distinctly different FDCs for deficit/non-deficit years according to several precipitation scenarios.
Improving wheat and soil productivity through integrated nutrient management and efficient planting system
Authors: SINGH A. K. , Sharma H. B. , Meena B. L. , Phogat B. S.
Published: September 2016

A field experiment was conducted to developed improved wheat and soil production system through integrated nutrient management (INM) and efficient planting system (EPS) in split plot design (SPD) with 20 treatment combinations. Treatments were consist of two planting systems (conventional and FIRB) and 10 fertility treatments viz., control, RDF, 75% RDF + FYM, 75% RDF + FYM + Zn, 75% RDF + FYM + Biofertilizer (BF) , 75% RDF + FYM + BF + Zn, RDF + FYM, RDF + FYM + Zn, RDF + FYM + BF and RDF + FYM + BF + Zn. The yield contributing characters of wheat viz., number of spikes / plant and number of grains/ spike were recorded significantly higher when the crop was supplied with combined application of RDF or 75% RDF along with FYM, biofertilizer and zinc over control and treatment receiving RDF only. In case of wheat yield, 10.8 and 11.3 per cent higher yield were registered with FIRB planting system over conventional system during 2007-08 and 2008-09. However in case of integrated nutrient management, RDF + FYM + BF + Zn treatment produced 50.39 and 52.73 q/ha wheat yield respectively. The grain and straw yields increased significantly with treatment RDF + FYM + Zn over control and RDF alone. The increase in grain yield with application of RDF + FYM + BF + Zn over RDF alone was 16.8 and 14.1 per cent during 2007-08 and 2008-09, respectively. The treatment receiving fertilizer showed a higher harvest index over unfertilized control. No significant difference between planting systems was recorded in respect of available nitrogen, phosphorus, potassium and organic carbon status of soil after harvest of crop during both the years of investigation. However, a higher net positive NPK balance under FIRB planting was observed over conventional planting system. A lower bulk density in the surface soil was observed under FIRB planting system as compared to conventional planting system during both years of field study. The FIRB system of planting and combined application of RDF or 75% RDF along with FYM, biofertilizers and zinc not only gave higher productivity and profitability of wheat but also have positive effect on soil physico-chemical properties which resulted into better rhizospheroc environment.