bluuebunny/crossref_metadata_2025 huggingface dataset:
Analyzing the impact of system architecture on the scalability of OLTP engines for high-contention workloads
Authors: Appuswamy Raja , Anadiotis Angelos C. , Porobic Danica , Iman Mustafa K. , Ailamaki Anastasia
Published: December 2017

Main-memory OLTP engines are being increasingly deployed on multicore servers that provide abundant thread-level parallelism. However, recent research has shown that even the state-of-the-art OLTP engines are unable to exploit available parallelism for high contention workloads. While previous studies have shown the lack of scalability of all popular concurrency control protocols, they consider only one system architecture---a non-partitioned, shared everything one where transactions can be scheduled to run on any core and can access any data or metadata stored in shared memory.

In this paper, we perform a thorough analysis of the impact of other architectural alternatives (Data-oriented transaction execution, Partitioned Serial Execution, and Delegation) on scalability under high contention scenarios. In doing so, we present Trireme, a main-memory OLTP engine testbed that implements four system architectures and several popular concurrency control protocols in a single code base. Using Trireme, we present an extensive experimental study to understand i) the impact of each system architecture on overall scalability, ii) the interaction between system architecture and concurrency control protocols, and iii) the pros and cons of new architectures that have been proposed recently to explicitly deal with high-contention workloads.
Scalable database logging for multicores
Authors: Jung Hyungsoo , Han Hyuck , Kang Sooyong
Published: December 2017

Modern databases, guaranteeing atomicity and durability, store transaction logs in a volatile, central log buffer and then flush the log buffer to non-volatile storage by the write-ahead logging principle. Buffering logs in central log store has recently faced a severe multicore scalability problem, and log flushing has been challenged by synchronous I/O delay. We have designed and implemented a fast and scalable logging method, E
leda
, that can migrate a surge of transaction logs from volatile memory to stable storage without risking durable transaction atomicity. Our efficient implementation of E
leda
is enabled by a highly concurrent data structure, G
rasshopper
, that eliminates a multicore scalability problem of centralized logging and enhances system utilization in the presence of synchronous I/O delay. We implemented E
leda
and plugged it to WiredTiger and Shore-MT by replacing their log managers. Our evaluation showed that E
leda
-based transaction systems improve performance up to 71 x, thus showing the applicability of E
leda.
An analytical study of large SPARQL query logs
Authors: Bonifati Angela , Martens Wim , Timm Thomas
Published: December 2017

With the adoption of RDF as the data model for Linked Data and the Semantic Web, query specification from end-users has become more and more common in SPARQL endpoints. In this paper, we conduct an in-depth analytical study of the queries formulated by end-users and harvested from large and up-to-date query logs from a wide variety of RDF data sources. As opposed to previous studies, ours is the first assessment on a voluminous query corpus, spanning over several years and covering many representative SPARQL endpoints. Apart from the syntactical structure of the queries, that exhibits already interesting results on this generalized corpus, we drill deeper in the structural characteristics related to the graph and hypergraph representation of queries. We outline the most common shapes of queries when visually displayed as undirected graphs, and characterize their (hyper-)tree width. Moreover, we analyze the evolution of queries over time, by introducing the novel concept of a streak, i.e., a sequence of queries that appear as subsequent modifications of a seed query. Our study offers several fresh insights on the already rich query features of real SPARQL queries formulated by real users, and brings us to draw a number of conclusions and pinpoint future directions for SPARQL query evaluation, query optimization, tuning, and benchmarking.
Stylus
Authors: He Liang , Shao Bin , Li Yatao , Xia Huanhuan , Xiao Yanghua , Chen Enhong , Chen Liang Jeff
Published: December 2017

RDF is one of the most commonly used knowledge representation forms. Many highly influential knowledge bases, such as Freebase and PubChemRDF, are in RDF format. An RDF data set is usually represented as a collection of
subject-predicate-object
triples. Despite the flexibility of RDF triples, it is challenging to serve SPARQL queries on RDF data efficiently by directly managing triples due to the following two reasons. First, heavy joins on a large number of triples are needed for query processing, resulting in a large number of data scans and large redundant intermediate results; Second, weakly-typed triple representation provides suboptimal random access - typically with logarithmic complexity. This data access challenge, unfortunately, cannot be easily met by a better query optimizer as large graph processing is extremely I/O-intensive. In this paper, we argue that strongly-typed graph representation is the key to high-performance RDF query processing. We propose
Stylus
- a strongly-typed store for serving massive RDF data. Stylus exploits a strongly-typed storage scheme to boost the performance of RDF query processing. The storage scheme is essentially a materialized join view on entities, it thus can eliminate a large number of unnecessary joins on triples. Moreover, it is equipped with a compact representation for intermediate results and an efficient graph-decomposition based query planner. Experimental results on both synthetic and real-life RDF data sets confirm that the proposed approach can dramatically boost the performance of SPARQL query processing.
An authorization model for multi provider queries
Authors: De Capitani di Vimercati Sabrina , Foresti Sara , Jajodia Sushil , Livraga Giovanni , Paraboschi Stefano , Samarati Pierangela
Published: December 2017

We present a novel approach for the specification and enforcement of authorizations that enables controlled data sharing for collaborative queries in the cloud. Data authorities can establish authorizations regulating access to their data distinguishing three visibility levels (no visibility, encrypted visibility, and plaintext visibility). Authorizations are enforced in the query execution by possibly restricting operation assignments to other parties and by adjusting visibility of data on-the-fly. Our approach enables users and data authorities to fully enjoy the benefits and economic savings of the competitive open cloud market, while maintaining control over data.
GPU rasterization for real-time spatial aggregation over arbitrary polygons
Authors: Zacharatou Eleni Tzirita , Doraiswamy Harish , Ailamaki Anastasia , Silva Cláudio T. , Freire Juliana
Published: December 2017

Visual exploration of spatial data relies heavily on spatial aggregation queries that slice and summarize the data over different regions. These queries comprise computationally-intensive point-in-polygon tests that associate data points to polygonal regions, challenging the responsiveness of visualization tools. This challenge is compounded by the sheer amounts of data, requiring a large number of such tests to be performed. Traditional pre-aggregation approaches are unsuitable in this setting since they fix the query constraints and support only rectangular regions. On the other hand, query constraints are defined interactively in visual analytics systems, and polygons can be of arbitrary shapes. In this paper, we convert a spatial aggregation query into a set of drawing operations on a canvas and leverage the rendering pipeline of the graphics hardware (GPU) to enable interactive response times. Our technique trades-off accuracy for response time by adjusting the canvas resolution, and can even provide accurate results when combined with a polygon index. We evaluate our technique on two large real-world data sets, exhibiting superior performance compared to index-based approaches.
Persistent impairment in working memory following severe hyperglycemia in newly diagnosed type 2 diabetes
Authors: Cerasuolo Joseph , Izzo Anthony
Published: December 2017

Acute hyperglycemia has been shown to cause cognitive impairments in animal models. There is growing appreciation of the numerous effects of hyperglycemia on neuronal function as well as blood–brain barrier function. In humans, hypoglycemia is well known to cause cognitive deficits acutely, but hyperglycemia has been less well studied. We present a case of selective neurocognitive deficits in the setting of acute hyperglycemia. A 60-year-old man was admitted to the hospital for an episode of acute hyperglycemia in the setting of newly diagnosed diabetes mellitus precipitated by steroid use. He was managed with insulin therapy and discharged home, and later, presented with complaints of memory impairment. Deficits included impairment in his declarative and working memory, to the point of significant impairment in his overall functioning. The patient had no structural lesions on MRI imaging of the brain or other systemic illnesses to explain his specific deficits. We suggest that his acute hyperglycemia may have caused neurological injury, and may be responsible for our patient’s memory complaints.

Learning points:

Acute hyperglycemia has been associated with poor outcomes in several different central nervous system injuries including cerebrovascular accident and hypoxic injury.

Hyperglycemia is responsible for accumulation of reactive oxygen species in the brain, resulting in advanced glycosylated end products and a proinflammatory response that may lead to cellular injury.

Further research is needed to define the impact of both acute and chronic hyperglycemia on cognitive impairment and memory.
Provider Perspectives on Use of Medical Marijuana in Children With Cancer
Authors: Ananth Prasanna , Ma Clement , Al-Sayegh Hasan , Kroon Leah , Klein Victoria , Wharton Claire , Hallez Elise , Braun Ilana , Michelson Kelly , Rosenberg Abby R. , London Wendy , Wolfe Joanne
Published: December 2017

BACKGROUND:

Although medical marijuana (MM) may have utility in the supportive care of children with serious illness, it remains controversial. We investigated interdisciplinary provider perspectives on legal MM use in children with cancer.

METHODS:

We sent a 32-item, cross-sectional survey to 654 pediatric oncology providers in Illinois, Massachusetts, and Washington characterizing MM practices, knowledge, attitudes, and barriers. Forty-eight percent responded; 44% (n = 288) were included in analyses. Providers were stratified by status as legally eligible to certify (ETC) for MM. We used Fisher’s exact and Wilcoxon rank tests and univariate and multivariate logistic regression models for group comparisons.

RESULTS:

The provider median age was 35 years (range 22–70 years); 33% were ETC (83 physicians; 13 Washington state advance practice providers). Thirty percent of providers received ≥1 request for MM in the previous month. Notably, only 5% of all providers knew state-specific regulations. ETC providers were more likely to know that MM is against federal laws (P < .0001). Whereas most providers (92%) reported willingness to help children with cancer access MM, in adjusted models, ETC providers were less likely to indicate approval of patient MM use by smoking, oral formulations, as cancer-directed therapy, or to manage symptoms (P < .005 for all). Forty-six percent of all providers cited the absence of standards around formulations, potency, or dosing to be the greatest barrier to recommending MM.

CONCLUSIONS:

Most pediatric oncology providers are willing to consider MM use in children with cancer and receive frequent inquiries. However, ETC providers endorse less favorable attitudes overall. The absence of standards is an important barrier to recommending MM.
A new species of Catasetum (Orchidaceae: Catasetinae) from Casanare, Colombia
Authors: Bonilla Morales Miguel M. , Mosquera Hernández Johan de J. , Petini-Benelli Adarilda Petini-Benelli
Published: December 2017

Una nueva especie de Catasetum fue encontrada en el departamento de Casanare hacia el oriente de Colombia, en la bioregión de la Orinoquía. Se describe e ilustra la especie y se estipulan parámetros asociados a su fenología, distribución y estado de conservación. La nueva especie, Catasetum lucisuareziae, es comparable con otras especies que se encuentran en la misma región, como C. rectangulare y C. callosum, pero difiere de ellas principalmente por su labelo trilobulado y la presencia de dos callos subglobulares en la base.
A new fragment of the Altun Yaruk in old Uigur from Tuyuk
Authors: Tieshan Zhang
Published: December 2017

The fragment we are publishing here is preserved in the Academia Turfanica. It belongs to the second chapter of the first volume of the Altun Yaruk Sudur in old Uigur. There are some words that are apparently different from the other version(s) of the text.
The importance of the archives of Venice, Bologna and Modena for the Crimean studies
Authors: Yaşa Firat
Published: December 2017

This paper deals with the material of Italian archives related to the history of Crimea. It demonstrates that only a few scholars have dedicated their research to Crimean studies and published papers in Turkey or elsewhere in recent years. Turkish historians have tended mainly to focus on the Ottoman Empire. Although some publications about the Crimean Khanate have been produced in historical literature during the last twenty years, the sources they use are mostly limited to either Russian or Ottoman archives. Italian archives are usually disregarded despite being important sources for historians interested in the Crimea. My aim is to guide researchers who wish to study this subject using Italian archives. First, information about archive catalogues directly connected to relations between the Khanate and the Italian city-states, such as Bologna, Modena and Venice is given. Then some examples of the documents, including letters, dispacci, reports and missionary records, considered to be relevant to the Crimean Khanate, will be presented.
Zu den mit ägyptisch ’irp „Wein“ gebildeten Wortspielen
Authors: Bojowald Stefan
Published: December 2017

This paper gives an overview of plays on words with the Egyptian irp ‘wine’. In total, seven examples could be found, which are introduced individually and, as much as possible, reduced to origins related to sounds. The relatively large number of plays on words built with irp ‘wine’ can be explained by the importance of wine in cultural history.
Slʿ as a coinage term in the South Semitic and Nabataean inscriptions
Authors: Al-Qudrah Hussein
Published: December 2017

Through the examination of direct epigraphic sources, this paper will trace the South Semitic (Ancient South and North Arabian) and Nabataean inscriptions, whereas other Semitic texts will be studied later in a separate study. The paper studies the historical background of coin usage in the Ancient Near East, mainly in the area of ancient South and North Arabia. In addition to the occurrences of the term, an etymological attempt will also be put forward that explains the origins of the term within the Semitic languages.
Wellness module for medical teachers: A pilot study
Authors: Deshpande Saee , Chari Suresh
Published: December 2017

This article was migrated. The article was not marked as recommended. BackgroundHealth promotion and disease prevention should be facilitated at workplace by advocating a healthy diet and physical activity. In view of many lifestyle disorders health professionals also need to give attention to improve their health behavior.Behavior change plan have been effective in achieving this goal however, it has not been investigated for healthcare professionals.Therefore, wellness module was developed and evaluated regarding its effectiveness in promoting health behavior.MethodTotal sample size is 30 (10 from medical, dental and physiotherapy). 24 responded (response rate 80%). A format for wellness was circulated amongst them and their pre and post test scores were recorded. Qualitative evaluation was done by semi-structured interviews of participants.ResultsOut of 30, 24 faculty responded for follow up (response rate 80%). Wellness goals : 13 physical fitness, 8-nutrition, 2-recreation and 1- safety. Self reported progress showed that 85% achieved target completely and 15% partially.Themes from semi-structured interviews: were barriers for achieving target are lack of time, laziness/ apathy, temptations, sickness, injury/pain. Behaviors reported as important towards goal attainment were time management, feedback partner, self control, visual cues. Benefits of the BCP as reported by participants were increased stamina, feeling of well being.ConclusionWellness module involving behavior change plan was well received by faculty and effective in promoting positive health behavior.
Effect of sonic versus ultrasonic activation on aqueous solution penetration in root canal dentin.
Authors:   School of Dentistry, Universidad Austral de Chile, Valdivia, Chile., Macías Dámaris , Bravo Víctor ,   School of Dentistry, Universidad Austral de Chile, Valdivia, Chile., Echeverría Diego ,   School of Dentistry, Universidad Austral de Chile, Valdivia, Chile.
Published: December 2017

The aim of this study was to observe the penetration of an aqueous solution into the root canal dentin under sonic activation and ultrasonic activation. Materials and Method: This study consisted of experimental in vitro research. In order to achieve a closed system, the apex of 45 single-rooted teeth was sealed with wax. The step-back technique was manually performed using a K50 apical master file and 3 groups were organized according to the protocol of the final irrigant activation: Group I: non-activated Chinese ink for 30 seconds, Group II: Chinese ink sonically activated with EndoActivator for 30 seconds, and Group III: Chinese ink ultrasonically activated with Varios 350 equipment for 30 seconds. Teeth were sectioned longitudinally, and the samples obtained were observed under a stereomicroscope at 1X magnification in order to be photographed and scanned to calculate the penetration area using the Image J software. The tinted radicular area was evaluated in relation to the total area of the root dentin. The Tukey’s post-hoc test and ANOVA were used for the statistical analysis (p<0.05). Results: Group I and II obtained 9.13% and 9.42% penetration respectively, while in group III the highest degree of dye infiltration was achieved (13.9%), being statistically significant (p<0.001). Conclusions: Ultrasonic activation produced a significantly higher penetration of the dye when compared to conventional activation and sonic activation.
Vida, historia y milagros de la cumbia peruana: la chicha no muere ni se destruye, sólo se transforma
Authors: Bailón Jaime
Published: December 2017

El presente artículo es una crónica de la evolución de la chicha o cumbia peruana. La chicha es un género musical producto de una multiplicidad de agenciamientos y punto de encuentro de matrices culturales local y global; destacan entre los más importantes el huayno mestizo, la cumbia colombiana y ritmos cubanos diversos. Tal diversidad parece ser el secreto de la extraordinaria vitalidad de la chicha, característica que le ha permitido resistir los embates de la producción discográfica transnacional.
En el cruce de caminos. Identidad, cosmovisión y chamanismo Tsachila de Montserrat Ventura i Oller
Authors: Fiallo Monedero Liliam
Published: December 2017

Resumen de En el cruce de caminos. Identidad, cosmovisión y chamanismo Tsachila
The History of a Decision: A Standard Vibration Test Method for Qualification
Authors: Rizzo Davinia , Blackburn Mark
Published: December 2017

As MIL-STD-810G, Environmental Engineering Considerations and Laboratory Tests, and subsequent versions have incorporated multiple-degree-of-freedom (MDOF) vibration test methodologies, it is important to understand the history and factors that drove the original decision in MIL-STD-810 to focus on single-degree-of-freedom (SDOF) vibration testing. Examining the thought process behind early MIL-STD-810 vibration test methods is useful when considering MDOF testing now that it is feasible with today's technology and documented in MIL-STD-810. This paper delves into the details of the decision made in the 1960s to develop the SDOF vibration testing standards in MIL-STD-810 beyond the limitations of technology at the time. This paper also considers the implications for effective test planning today considering the advances in test capabilities and improvements in understanding of the operational environment.
Edición e edicións: a propósito de crítica textual e lírica medieval (profana) galego-portuguesa (II)
Authors: Arbor Aldea Mariña
Published: December 2017

Este artigo constitúe unha revisión histórica e crítica do labor ecdótico realizado no ámbito da lírica profana galego-portuguesa desde a década de 1960, momento en que a denominada “escola italiana” comeza os seus traballos. O estudo contempla as edicións preparadas polas denominadas escolas “pisana”, “barese” e “romana”, ademais de por diversos investigadores independentes en Italia, para despois analizar os traballos preparados no Brasil e para centrarse, finalmente, na Península Ibérica, que se converte, con Galicia á cabeza, e a partir da década dos ’80, no baricentro da actividade editorial en materia de lírica profana galego-portuguesa.
Recensión: Héctor Cajaraville Araújo, Os xogos de palabras na prensa gratuíta en galego: De Luns a Venres
Authors: Varela Armas Luz
Published: December 2017

Recensión: Héctor Cajaraville Araújo, Os xogos de palabras na prensa gratuíta en galego: De Luns a Venres, Santiago de Compostela: Universidade de Santiago de Compostela, Servizo de Publicacións e Intercambio Científico, 2015, 216 páxinas.
Onsite Reuse of Reclaimed Wastewater in Winter to Determine Potential for Pollutant Runoff
Authors: Griffin Joshua , Mancl Karen M.
Published: December 2017

The objectives of this study were to determine the impact of reclaimed wastewater irrigation in freezing conditions on the quality of runoff and to observe how soils respond to irrigation in freezing temperatures. Onsite irrigation systems were constructed on 6 bermed lots on a hillside in Coshocton County, Ohio. All runoff was collected in gutters at the bottom of the hill. Two lots were irrigated with artificial reclaimed wastewater, 2 with well water, and 2 were unirrigated. Runoff was collected through an average winter (2013) and a severe winter (2014). The infiltrative capacity of the plots was maintained during the average winter and yielded runoff on only one day. During the severe winter, runoff occurred on 11 days; of the regulated pollutants, only ammonia was significantly higher than the control plots. The volumes that ran off were lower than what was applied and the contaminate concentrations were lower than what was applied and did not exceed National Pollutant Discharge Elimination System (NPDES) effluent limits. The indication is that even in the worst-case scenario most of the pollutants were assimilated on site.
BIOÉTICA, BIODIVERSIDAD Y DESARROLLO HUMANO EN LA CIUDAD DE BOGOTÁ D.C.: Reflexión a partir de criterios bioéticos para la resolución de conflictos ambientales
Authors: Osorno Acosta Viviana
Published: December 2017

La ciudad de Bogotá D.C. se encuentra en constante expansión, lo que ha obligado a los ciudadanos a ubicarse en los diferentes terrenos disponibles, que en muchos casos suelen ser áreas consideradas protegidas dada su importancia ecológica como reservorios de biodiversidad. Es ahí, cuando aparece el conflicto entre desarrollo y la biodiversidad urbana, donde las decisiones que se tomen pueden llevar a la pérdida irreversible del equilibrio ecosistémico de estas áreas protegidas, y los beneficios que estos ofrecen a los seres humanos. De acuerdo a lo anterior, este articulo plantea una reflexión a partir criterios bioéticos para la resolución de los conflictos ambientales que surgen cuando se contempla el desarrollo humano de Bogotá, desde una perspectiva económica que no contempla la conservación de la biodiversidad. A partir de dicha reflexión, surge como posibilidad considerar el principio de precaución antes de tomar decisiones que tengan consecuencias irreversibles sobre la vida de la ciudad.  
Presentación
Authors: Escobar Triana Jaime
Published: December 2017

Presentación del Número Especial 11(3) de la Revista Colombiana de Bioética
Calvin’s reply to Sadolet as an extension of his pastoral ministry
Authors: Khumalo Thapelo
Published: December 2017

In his concise autobiography in the dedication to the Psalms commentary Calvin made it plain that his role was primarily as a pastor; he compared his role in the church to that of King David in Israel: “And yet, as he [David] was elevated from the sheepfolds to the highest position of authority, so God took me [Calvin] also from obscure and small beginnings and honored me with the office of herald and minister of the gospel.” (Calvin, 1958:51.) Beza (1564:9), Calvin’s contemporary biographer, in Life of John Calvin also described Calvin as primarily engaged in pastoral ministry. This paper will investigate and analyse the theological acumen and the pastoral tone in Calvin’s treatise, Reply by John Calvin to the Letter by Cardinal Sadolet to the Senate and People of Geneva. This reply to Sadolet exudes outstanding intellectual brilliance and an unwavering pastoral concern that characterised Calvin’s entire ministry and literature. A study of this treatise reveals that even in this theological work, Calvin was practising his pastoral ministry.
A relação entre a memória social e sociocognição: busca do contexto social na Organização do Conhecimento
Authors: Do Carmo Juliana Rabelo , Karpinski Cezar , Bräscher Marisa
Published: December 2017

Este artigo tem como objetivo evidenciar a relação entre memória social e cognição social e as perspectivas de compreensão do contexto para organização do conhecimento. A pesquisa é exploratória e adota como procedimento metodológico a pesquisa bibliográfica. O estudo compreende a memória social como fonte de conhecimento que pressupõe a experiência coletiva de um grupo. Caracteriza a sociocognição, os estudos sobre a linguagem e as discussões que este campo contempla sob a perspectiva do paradigma da cognição social. Aponta a interseção entre a memória social e a sociocognição, no ponto em que, para a interpretação da memória é necessário a compreensão do seu contexto, que possui características sociocognitivas de seus interlocutores, ou seja, a visão de mundo de quem o interpreta. O campo da memória discursiva sociocognitiva é interpretado como o âmbito onde se constituem as práticas sociocomunicativas de representação e memória. A pesquisa mostra que as questões sobre o discurso, os contextos de uso, as intenções comunicativas e sociais efetivadas pelos falantes são elementos de estudo no campo da memória discursiva sociocognitiva. Constata que a base indicada pela sociocognição para os estudos da memória social, fornece subsídios para a organização do conhecimento no que diz respeito às formas como as comunidades discursivas produzem e organizam seus conhecimentos socialmente construídos.
Análise de assunto de acórdãos jurisprudenciais
Authors: Ferreira Ana Carolina , Maculan Benildes Coura Moreira dos Santos
Published: December 2017

Esta pesquisa contextualiza o processo da análise de assunto no âmbito dos acórdãos jurisprudenciais, tendo em vista a relevância desse tipo documental no contexto jurídico como mecanismo de defesa de direitos e de teses jurídicas. Conceitua-se a fonte de informação jurisprudencial, apresentando suas características, funções e estrutura. São também apresentados os requisitos essenciais das sentenças, de acordo com o Novo Código de Processo Civil, de 2015. Os referenciais teóricos da indexação, em especial, da etapa da análise de assunto, são explorados com foco na aplicação da metodologia da análise conceitual de acórdãos proposta por Guimarães (1994), adaptada ao contexto dos tribunais de contas.
Migrações de retorno ao Nordeste: dinâmicas, motivações e novos desafios frentes às consequências desse fenômeno migratório
Authors: Benini Élcio Gustavo , Do Nascimento Daniel Teotônio , Leite Maicon Moreira
Published: December 2017

A dinâmica demográfica brasileira, sobretudo na primeira metade do século XX, foi intensamente caracterizada pelo deslocamento de massas rumo aos maiores centros urbanos do país. Entretanto, nas duas últimas décadas do século, observou-se um fluxo migratório considerável de pessoas que retornavam aos seus Estados de origem. Assim, esta pesquisa teve como objetivo ampliar o entendimento dessa dinâmica populacional caracterizado como migração de retorno, notadamente realizado entre migrantes nordestinos que deixam as duas maiores regiões metropolitanas nacionais e retornam à terra natal. A partir do processo de interpretação das variações registradas a fim de entender a razão dos números da migração, conclui-se que uma significativa fração da população, principalmente a de menor condição financeira, é suscetível às consequências que as transformações de caráter fundamentalmente econômico e relacionada à qualidade e projeção de vida lhe impõe, independendo da região de morada, forçando até mesmo o retorno.
Macrófitas aquáticas de um rio temporário no semiárido nordestino
Authors: Batista dos Santos Maria Rosiane , De Abreu Maria Carolina , Peron Ana Paula , Meireles de Deus Maria Do Socorro
Published: December 2017

O papel das macrófitas nos ecossistemas aquáticos pode ser avaliado a partir da determinação da sua biomassa, obtendo-se informações relacionadas ao tempo de crescimento, armazenamento de nutrientes, fluxos de energia e realocação de nutrientes. Os objetivos deste estudo foram identificar as espécies de macrófitas aquáticas em duas áreas de coletas no rio Guaribas e verificar as diferenças de biomassa das espécies encontradas para essas áreas. Foram definidos dois locais de amostragem ao longo do rio, na zona rural e urbana da cidade. As plantas que se encontravam dentro do quadrado foram coletadas com a mão,e as submersas com um gancho com pontas de ferro, colocadas em sacos plásticos devidamente identificados e levadas ao laboratório para identificação e pesagem da biomassa. Foram registradas nove espécies e Eichhornia crassipes e Salvinia auriculata apresentaram os maiores valores de peso seco, para a zona urbana e Chara cf. guairensis para a zona rural.
A inclusão de alunos com necessidades educativas especiais: um desafio para a universidade
Authors: Pacifico Marcos Vinicius Dimas , Martins Nayara Da Silva Cesario
Published: December 2017

A inclusão na universidade é um direito de acadêmicos com necessidades educativas especiais, garantindo uma educação de qualidade a todos. Delinear-lhes os obstáculos para tal inclusão se configura como principal objetivo deste trabalho, que é descritivo de caráter exploratório, qualitativo, realizado por revisão bibliográfica, buscando artigos na Biblioteca Virtual de Saúde (BVS), com base de dados na Literatura Latino-Americana e do Caribe em Ciências da Saúde (LILACS), artigos em português, de 2005 e 2015, relacionados à questão norteadora. Essa inclusão implica desafios, destacando-se: barreiras arquitetônicas, falta de recursos adequados às necessidades educacionais, despreparo e dificuldades dos professores em promover e lidar com a inclusão, além das principais medidas realizadas para incluí-los na universidade. Assim, ao iniciar a vida na universidade para esses acadêmicos, evidencia-se a necessidade de uma diversidade de aperfeiçoamento como em estruturas físicas, elaboração curricular direcionada, formação curricular dos professores e inserção de tecnologias assistivas.
Programming of Cell Resistance to Genotoxic and Oxidative Stress
Authors: Velegzhaninov Ilya O. , Ievlev Vitaliy A. , Pylina Yana I. , Shadrin Dmitry M. , Vakhrusheva Olesya M.
Published: December 2017

Different organisms, cell types, and even similar cell lines can dramatically differ in resistance to genotoxic stress. This testifies to the wide opportunities for genetic and epigenetic regulation of stress resistance. These opportunities could be used to increas the effectiveness of cancer therapy, develop new varieties of plants and animals, and search for new pharmacological targets to enhance human radioresistance, for example, for -manned deep space expeditions. Based on the comparison of transcriptomic studies in cancer cells, in this review we propose that there is a high diversity of genetic mechanisms of development of genotoxic stress resistance. This review focused onpossibilities and limitations of the proposed regulation of the resistance of normal cells whole organisms to genotoxic and oxidative stress by overexpressing of stress-response genes. Moreover, the existing experimental data on the effect of such overexpression on the resistance of cells and organisms to various genotoxic agents has been analyzed and systematized. We suggest that the recent advances in the development of multiplex and highly customizable gene overexpression technology that utilizes the mutant Cas9 protein and the wealth of available data on gene functions and their signal networks open new opportunities for research in this field.
Buckling Analysis of Tubular Strings With Connectors Constrained in Vertical and Inclined Wellbores
Authors: Huang Wenjun , Gao Deli , Liu Yinghua
Published: December 2017

A new concept is proposed in the local tubular mechanical model, which provides a more-sophisticated description of tubular mechanical behaviors from a local perspective. The principles and assumptions for the local mechanical model are presented. Under these assumptions, the mechanical behaviors of tubular strings with connectors under nonbuckling/lateral-buckling, interhelical-buckling, and intrahelical-buckling modes in vertical and inclined wellbores are studied. The critical interhelical-buckling and intrahelical-buckling loads are deduced with the assumed load-displacement curve and potential-energy factor. The contact states under every buckling mode are divided into no contact, point contact, and wrap contact, and the critical contact loads are deduced with critical contact conditions. The results of critical buckling loads, critical contact loads, contact forces, and maximum bending moments are compared, and these results are given in explicit forms for the convenience of application. The results show that buckling mode transforms from nonbuckling/lateral buckling to interhelical buckling to intrahelical buckling, and contact state transforms from no contact to point contact to wrap contact with the increase of axial force. The effects of connectors on buckling behaviors are determined by both the geometric and mechanical parameters of tubular strings with connectors. Connectors can inhibit the buckling problem and increase the axial force and torque transfer, but may increase the possibility of tubular failure. Therefore, these two effects of connectors should be considered comprehensively in the optimal design of connectors on tubular strings.
Best Practices for Wellbore Cleanup and Displacements in Openhole Sand-Control Completions
Authors: Beldongar M.. , Agee D.. , Kumar A.. , Offenbacher M.. , Flamant N.. , Lees A.. , Gadiyar B.. , Parlar M..
Published: December 2017

At some stage after drilling to target depth and before pumping the gravel-packing treatment or before putting the well on production, the drilling fluid is typically displaced from the wellbore. Practices in the industry vary significantly depending on the primary drivers of the completion engineers, sometimes with undesirable results. Inefficient wellbore displacements can cause a variety of problems, including increased nonproductive time, reduced well productivity, and incomplete gravel packing through various mechanisms.

In this paper, we detail our best practices to ensure efficient wellbore displacements for sand-control completions on the basis of learnings from more than 500 openhole completions throughout the world from 2013 through 2016. In the design phase, these involve various compatibility tests, some of which are not commonly performed, and/or potential problems that cannot be identified easily when they are performed using conventional test procedures. Additional considerations include the modeling of fluid/fluid displacements and determining the fluid properties, pump rates, and fluid volumes required for effective displacements in a given wellbore geometry and flow paths. On the rigsite, they involve several quality-control tests, some of which have not been implemented previously.
Indonesian Fan Girls’ Perception towards Soft Masculinity as Represented By K-pop Male Idols
Authors: Ayuningtyas Paramita
Published: December 2017

This article aimed to examine how fan girls perceive this new form of masculinity represented by K-pop male idols (termed as soft masculinity). This research used a mixed method in collecting the data from a questionnaire distributed via e-mail and Line to twenty fan girls from various fandoms in April 2016. The result shows that the respondents are aware that in the entertainment business, gender identity can be modified and presented as a part of marketing strategy. In addition, they only see the soft masculinity delivered by K-pop male idols as a form of performance.
The Use of Locative Nouns Li, Shang, and Zhong as Mandarin Language Adposition
Authors: Trihardini Ayu
Published: December 2017

The purpose of this study was to analyze locative nouns (li, shang, and zhong) that may function as postpositions and therefore Mandarin language considered to have circumposition. The collected data were sentences taken from Chinese short stories by Lu Xun and the articles in the tabloid. Because the object of this study consisted of language in texts, hence observation and documentation method were needed. The analysis of data used distribution method with dissipative technic, substitution technic, and insert technic. Through dissipative and insert technic, the distribution of the adpositional phrase could be known. Through substitution technic, the distribution of the adpositional phrase and the use of preposition related tosemantic was conducted. The study shows, in some context of adpositional phrase, locative nouns li, shang, and zhong may function as postpositions, while the use of preposition zai, is optional, and the options provide the same meaning. Based on this result, Mandarin locative nouns should be considered as postpositions.
Implemented PWIM in Developing Students’ Communicative Competence of SMK Islam Wijaya Kusuma Jakarta
Authors: Nurani Siti , Rosyada Amrina
Published: December 2017

The research aimed at determining the significant effect of implemented Picture Word Inductive Model (PWIM) in developing students’ communicative competence in SMK Islam Wijaya Kusuma Jakarta. The students’ communicative competence was measured quantitatively by conducting the experiment method. There were 47 of the eleventh-grade students as samples chosen randomly by using purposive sampling technique. The data were performed by using the test instrument with two groups on post-test design; one group became the experiment class and the other group became the control class. The questionnaire was assigned to students at the end of the lesson. The post-poster cycle assessment was given as a basis of measurement in analyzing students’ communicative competence. The data were analyzed by using t-test two tailed formula to find out the significant difference of each class of the sample (simple effect). Findings have shown that there is a significant effect of using PWIM to students’ communicative competence which is reflected from the enhancement of students’ comprehension toward the pronunciation, fluency, grammar, vocabulary as well as the increase of their motivation and creativity experiencing thelearning process more communicatively.
Loss and Gain in Translation of Culture-Specific Items in Ahmad Tohari’s Lintang Kemukus: A Semantic Study
Authors: Tiwiyanti Leni , Retnomurti Ayu Bandu
Published: December 2017

Culture-specific items (CSIs) are difficult to translate since they are related to cultural knowledge and cultural background of the given culture. The distance and differences between two different cultures determine the extent of the gain or loss that will be exprienced by the CSIs as they are translated. From Indonesian into English The purposes of this research were to identify the translation procedures applied in translating CSIs which caused loss and gained in the translation process and to identify how the translator compensated the loss in translating CSIs. The method used was qualitative descriptive method. The result shows that loss is more prevalent than gain although the translator has enough knowledge on the source text culture as he has spent some years doing some researches in Banyumas society. There are two kinds of losses found in this research; inevitable and avertable losses. Translation procedures used which result in loss in translation are translation by a more general word (subordinate), translation by a more neutral/less expressive word and translation by cultural substitution. Gain is realized mostly through the creativity of the translator when they are able to explain the culture-specific items for effectivecommunication. In order to compensate the loss that might have occurred, translator uses some translation procedures. They are translation by loan word with explanation, translation by paraphrase using related word, and translation by paraphrase using unrelated word. In short, gain in translation for better communication is not easy to achieve especially in the case oftranslating CSIs.
Stylistic Analysis of Maya Angelou’s Equality
Authors: Isti'anah Arina
Published: December 2017

This research presented the stylistic analysis of a poem by Maya Angelou, Equality. The poem was chosen as it became Angelou’s one of well-known poems. The Stylistic analysis aimed at comprehending the meanings of either literary or non-literary text by means of observing the language device used in the texts. In this article, the stylistic analysis was conducted to analyze Maya Angelou’s Equality. To achieve the goal of stylistic analysis, there were some language levels to observe; they were phonological, graphological, grammatical, and semantic levels. In the phonological level, the repetition of rhyme in some stanzas, assonance, consonance, and alliteration were used to voice Angelou’s dream about freedom for black people. In the graphological level, the use of prominent punctuation in stanzas 3, 6, and 9 stressed equality as the requirement for the freedom she expected. In the grammatical level, Angelou used pronoun I and you as the dominant words in the poem, revealed different class the poet experienced in the country. The use of metaphors in the poem brought the same meaning as freedom, voice, effort, and racism that black people experienced in America. This research concludes that stylistics applies to analyze literary work so that thorough appreciation to it can be achieved.
Cooperative Integrated Reading and Composition (CIRC) and Reading Motivation: Examining The Effect on Students’ Reading Ability
Authors: Mubarok Husni , Sofiana Nina
Published: December 2017

This study examined the effect of Cooperative Integrated Reading and Composition (CIRC) and reading motivation on students’ reading ability. The design of the study was the factorial design of experimental research. The research was conducted on one state junior high school in Jepara Municipality under the Ministry of National Education. The independentvariable of this research was teaching strategies which were classified into two; those who used CIRC as the experimental group and those who used conventional teaching strategy as the control group; while reading motivation, as the moderator variable, was classified into high and low motivation. Students’ reading ability was considered as a dependent variable. This research used 68 students as respondents selected through simple random sampling. The research was analyzed by using multifactor analysis of variance (two-way ANOVA). The research reveals that teaching strategies differ significantly from one another in their effect on the students’ reading ability. The students with high motivation perform better in their reading ability than low-motivation students, regardless of the teaching strategy used. Nevertheless, there is no significant interactioneffect of teaching strategy and reading motivation on students’ reading ability. It means that the effect of teaching strategy on the students’ reading ability does not depend on the students’ reading motivation where F-test (3,326) is lower than (<) F-table 3,99. at 0,05 significance level.
Chevy Corvette: Icon Of American Life In The Fifties
Authors: Wishnoebroto Wishnoebroto
Published: December 2017

Cars not only function simply as a mean of transportation. Like paintings, the design of a car could represent a certain cultural and social phenomenon of a country. The design of Chevrolet (Chevy) Corvette is very different compared to its competitors in the 50s. The size, engine, weight, and the materials of this car were chosen based on the assumption that speed and agility is on top of everything. It was not surprising that in the 50s, the year when the first Corvette was designed and launched, The US was involved in a cold war with the Soviets. Arm race and competition to be the first was the major issue and Corvette was the first car that suggests this spirit. This paper tries to show the distinctiveness of Corvette and how it can be used to explain the character of American people in the fifties.
The Establishment and Development of Confucius Institute
Authors: Bin Zhang
Published: December 2017

Confucius Institute has been established in the global range. This is a brand of Chinese culture initiatives, as well as the inevitable result of the international "Chinese craze" and also the strong support for the international promotion of the Chinese .Confucius Institute for Teaching Chinese as a foreign language to the main teaching content, adopts a flexible and diverse school running management. Though this initiative there will be a wide-spread Chinese civilization, the promotion of cultural exchanges between China and foreign countries and finally will display the style and image of the Orient big country. This is very significant as to accelerate the development of overseas Chinese education and also lets the world know more about China in order to be closer to China which will be a far-reaching significance.
Students’ Attitude on The Use of Facebook And Blog In Writing Class and Their Writing Competence
Authors: Rifai Irfan
Published: December 2017

Article aims to investigate the relationship between students’ attitudes on the use of Facebook and blog as learning tools in writing class. Two groups of students were made as experimental and control group. The experimental group used Facebook and blog in as learning tools for thirteen sessions while the control group only used Binusmaya, local multi channel learning. It was assumed that Facebook and blog would be able to help students in three level of writing mastery: the vocabulary, the accuracy and the fluency in writing. Students’ attitudes were gathered through survey and the results compared to their final test scores. The result shows that students’ lack of enthusiasm was in line with students’ level of achievement in writing and that Facebook and blog did not give significant influence on improving students’ writing competence.