bluuebunny/crossref_metadata_2025_split huggingface dataset:
Increasing Drilling Efficiency in Saudi Arabia Gas Development Project: Consistent Incremental Gains Significantly Improve Project Economics
Authors: Ghoto Shabir , Kubaisi Abdullah , Platt James , Al Alsayednassir Alawi , Siddik Syed , Valliyappan Som , Karuppiah Venkatesh , Samy Ahmed , Khan Ajmal , Bits Smith 
Published: December 2015

Abstract
Because of high formation pressure in certain formations, there are three different casing designs available, including slim-bore wells and big-bore wells. The slim-bore wells are 12-in hole section applications, and big-bore wells drilled as 16-in hole sections. In 12-in slim-bore wells, a major challenge is to drill through different carbonate formations with unconfined compressive strength (UCS) between 10,000 and 30,000 psi with hard streaks peaking at 40,000 psi toward section end. Another challenge in the lower section is high formation abrasiveness, which increases PDC cutter wear rate and slows ROP to an unacceptable rate of less than 10 ft/h before reaching TD.
The challenges of this extensively drilled application are well known, and the most efficient bit design to date is a seven-bladed PDC with 16-mm cutters. The existing PDC delivers an acceptable ROP, but its dull condition suggests that a more efficient cutting structure would improve project economics in areas of slim-bore wells where the operator expected poor performance.
An R&D project to improve PDC bit performance produced a Conical Diamond Element (CDE) with twice the diamond thickness of a conventional PDC cutter. The CDE provides superior resistance to abrasive wear and impact load damage. To extract the maximum benefit from the CDE's enhanced durability, design engineers used a finite element analysis- based modeling system to position the element at bit center on the baseline design by reducing cutter volume. The new design would increase drilling efficiency at the center of the borehole, leading to higher ROP. This new type of PDC has also proven to reduce damage from torsional vibration for improved stability and borehole quality. The modeling system was also used to identify rpm and WOB combinations most likely to improve ROP and dynamic stability drilling through the difficult carbonate formations.
Two new 12-in bits were run in the satellite field wells and set new back-to-back benchmarks for the fastest ROP on their first run. In the X field, this bit achieved an 18% improvement in ROP (73.1 ft/h) compared with four offsets drilled with conventional PDC, resulting in a 10% reduction in cost per foot. In the Y field, the central CDE-type bit achieved a 9% improvement in ROP (72.8 ft/h) compared with a direct offset resulting in an 8% reduction in cost per foot. The authors will discuss operational challenges and the technical justification for running the CDE equipped PDC bit. The paper concludes with a discussion of economic benefits for the operator by utilizing this new technology.
Evaluating the Effects of Acid Stimulation Treatment Before and After Fines Migration on Petrophysical Properties in Sandstone Reservoirs
Authors: Hanafy Ahmed , Ali Abdalla , Nasr-El-Din Hisham A. , Heidari Zoya 
Published: December 2015

Abstract
Restoring formation damage by matrix acidizing is one of the common ways to increase productivity in sandstone formations. While sandstone formations are typically composed of the same types of minerals, the concentration and composition of these minerals, as well as the permeability and porosity of the matrix, can vary widely. Such variable petrophysical and compositional properties of sandstone formations can affect the severity of fines migration and the performance of acid stimulation treatments.
To evaluate the effect of acid stimulation on petrophysical properties before and after fines migration, coreflood experiments were conducted on Bandera sandstone cores. Half of the treatments were conducted on cores that were damaged by triggering fines migration by injecting deionized water, and the other half were conducted on undamaged cores. These cores contain a wide range of clay content, mineral compositions, permeability, pore size distribution, and porosity. A series of characterizing tests and measurements were performed before and after acid treatments. The objectives of this work include: (a) analyzing X-ray diffraction (XRD) and X-ray fluorescence (XRF) measurements to determine the mineralogy and elemental composition of the rocks, (b) interpreting computational tomography (CT) scans to evaluate pore-scale heterogeneity and acid effect on cementing material, and (c) evaluating permeability by flooding the core samples with brine.
More than 20 coreflood experiments were conducted at constant temperatures of 72, 150, and 250°F and constant acid concentration on 6 in. x 1.5 in. core samples at different injection rates. The CT- scans proved, quantified, and localized the fines migration in the damaged cores. The effect of fines migration on the acid stimulation treatment success in terms of increasing permeability and ultimately productivity was determined. Additionally, acid reaction increases porosity and permeability. However, treatment of damaged cores yielded different pore-size distribution and permeability compared to undamaged cores. Furthermore, combining CT-scan and inductively coupled plasma (ICP) results proved an extremely high sensitivity of fines migration toward HCl at temperatures 150 and 250°F resulted in porosity deterioration toward the outlet compared to the gained porosity at the inlet of the treated cores.
The literature is rich with discussions about sandstone acidizing and acid systems. However, this comparative study provides a more comprehensive understanding of the effect of fines migration on the success of the stimulation treatment and its effect on petrophysical properties. The outcome of this work will lead to a reliable design of matrix acid treatments and, hence, increase the chances of successful acid stimulation treatment that optimizes well productivity.
Mutation screening of the Otop1 gene in familial benign positional paroxysmal vertigo
Authors: Monzani Daniele , Fancello Tatiana , Alicandri-Ciufelli Matteo , Genovese Elisabetta , Tarugi Patrizia , Cavazza Elisa Aggazzotti , Percesepe Antonio 
Published: December 2015

Objectives:
Benign paroxysmal positional vertigo (BPPV) is a sporadic disorder in the vast majority of cases, although a familial, benign, recurrent form, in which the disease segregates in an autosomal dominant fashion has been described. After the evidence for a role of a novel murine gene, Otop1, in knock-out tlt (tilted) and mlh (Mergulhador) mice, lacking the perception of gravity and linear motion and showing a vestibular disorder due to non-syndromic agenesis of both utricular and saccular otoconia, we aimed at verifying the role of the human analogue of the Otop1 gene in BPPV pathogenesis in familial cases of BPPV, collected in our tertiary university referral centre.

Methods:
Starting in 2007, families with at least two living members thought to have BPPV were considered for inclusion in the present study. The cases were both retrospectively and prospectively identified over the following two years.

Results:
Seven familial aggregations of BPPV were identified and Otop1 mutation screening showed the presence of a heterozygous mutation in one family, c.1013G> C p.Arg338Pro, which was considered possibly deleterious using the prediction software. It was absent in 100 control alleles, but was also found in two as yet unaffected relatives.

Conclusions:
The results of a mutation screening of the Otop1 gene in familial cases of BPPV do not support a major role of the gene in the pathogenesis of the disease.
Evaluation of non-linear frequency compression hearing aids using speech P1-cortical auditory evoked potential
Authors: Hazzaa Nagwa , Hassan Dalia Mohamed , Hassan Abeer 
Published: December 2015

Objective:
To investigate the potential effects of frequency lowering technology on outcome measures of hearing aid efficacy. The detection of mid- and high-frequency syllables in children with sensorineural hearing loss (SNHL) fitted with non-linear frequency compression (NLFC) hearing aids was studied using speech P1 cortical auditory evoked potentials (CAEP).

Study design:
Thirty Arabic speaking children with bilateral high frequency SNH and with a history of regular binaural hearing aid use were included. All children were fitted with binaural Phonak Naida III UP with a NLFC feature. Verification of NLFC was achieved through aided sound field testing and aided speech P1-CAEP recordings. Aided P1-CAEPs were elicited using synthetic speech stimuli ‘da’ and ‘ga’. Fifteen age-matched normal hearing children served as a control group to provide a reference of typically maturing CAEPs without the influence of hearing impairment.

Results:
NLFC improved aided thresholds in the mid and high frequencies. No statistically significant difference existed between the control and study group in their CAEP responses to the ‘ga’ stimulus in both NLFC-disabled/enabled conditions. The ‘da’ stimulus elicited P1-CAEP in only 27% of the study group with the NLFC disabled condition; this increased to 83% with activation of NLFC. The P1-CAEP latency of the study group was prolonged compared to children of the control group for both stimuli. The presence of P1-CAEP to both ‘ga’ and ‘da’ stimuli was significantly negatively correlated with the age of the child, duration of hearing loss, and duration of hearing aid use.

Conclusion:
The NLFC significantly improved the audibility of high frequency sounds for children with severe high frequency SNHL. Speech P1-CAEP can be used as an objective validation tool in children to evaluate the benefit from NLFC especially when behavioural aided thresholds are difficult to obtain.
A PERIODIZAÇÃO NA HISTÓRIA DA LITERATURA BRASILEIRA
Authors: Fussato Nakasato Oscar 
Published: December 2015

<p><span>Desde<span class="apple-converted-space"> </span><em>Ensaio sobre a literatura<span class="apple-converted-space"> </span></em>(1836), de Gonçalves de Magalhães, até a<span class="apple-converted-space"> </span><em>História da literatura brasileira<span class="apple-converted-space"> </span></em>(edição no Brasil em 1997), de Luciana Stegagno Picchio, a periodização da nossa literatura passou por transformações que indicam uma evolução. De uma periodização condicionada a fatos políticos ou simplesmente cronológica passa-se a uma periodização estilística. Durante muito tempo fatos como a independência do país foram usados como divisores de águas entre períodos literários. A partir de<span class="apple-converted-space"> </span><em>A literatura no Brasil</em><span class="apple-converted-space"> </span>(1955)<em>,<span class="apple-converted-space"> </span></em>de Afrânio Coutinho, principalmente, passa-se a reconhecer a literatura como uma realidade estética autônoma.</span></p>
PAISAGEM DA JANELA
Authors: Fatima Menegazzo Nicodem Maria 
Published: December 2015

<p><span>Com a presente poesia, a autora auferiu o primeiro lugar da categoria no<span class="apple-converted-space"> </span><em>I Concurso Adélia Prado de Poesias e Contos</em>, da Unidade de Medianeira do CEFET/PR.</span></p>
Coronéis, Fantasmas e santos na literatura de ciclo do modernismo
Authors: Caixeta Nascentes Zama 
Published: December 2015

<p>Analisaremos a peça teatral <em>Zefa entre os homens</em> mostrando como a trama estrutura-se a partir das ideias de crime e castigo, sendo religiosa a razão da queda do poder dos coronéis. Na sequência, sobre os romances <em>Bangüê</em> e <em>Usina</em>, argumentaremos a favor da seguinte tese: a decadência dos proprietários de engenho e usina possui um motivo também religioso (castigo de Deus), e não apenas motivos econômicos (queda nos preços do açúcar, concorrência entre proprietários) ou psicológico (inaptidão para administração dos negócios agrários). Ao lado da tese da causação religiosa da decadência dos senhores do açúcar, comentaremos estes outros pontos comuns a essas três obras e a outras da nossa literatura: a existência de fantasmas e retratos nos antigos casarões e os elementos míticos-bíblicos urdidores do enredo.</p>
O trabalho com o texto nos ensinos médio e tecnológico
Authors: Dos Santos Nelson 
Published: December 2015

<span>Este trabalho, num primeiro momento, faz uma reflexão sobre o ensino de leitura e produção de texto nas escolas brasileiras, seus problemas mais freqüentes e procura mostrar, também, o que pensam alguns estudiosos da área da linguagem a respeito desta questão. Num segundo momento, relata como se deu a condução das atividades e quais foram os resultados </span><span class="apple-converted-space"><span> </span></span><span>de uma pesquisa realizada por meio da aplicação de técnicas de ensino de leitura e produção de texto argumentativo, baseadas na Teoria da Argumentação, de </span><span class="apple-converted-space"><span> </span></span><span>C. Perelman e na concepção dialógica de uso da linguagem, de M. Bakhtin, com uma das turmas dos cursos superiores de tecnologia da Unidade de Medianeira, do CEFET/Paraná.</span>
A paródia em "Conto barroco ou unidade tripartita"
Authors: José de Souza Frota Adolfo 
Published: December 2015

<p>O objetivo deste trabalho é analisar o “Conto barroco ou unidade tripartita”, de Osman Lins, da coletânea de narrativas <em>Nove novena</em>, no que concerne o seu caráter paródico. Destacaremos a maneira particular como o autor desloca o foco central da história em três partes, as personagens principais, que nos lembram as representações máximas do cristianismo, e, também, como o autor utiliza episódios bíblicos, e dá-lhes a sua interpretação, recontextualizando-os.</p>
A ética e a lei em Azdak, de O círculo de giz caucasiano
Authors: De Souza Alves Pereira Maurini 
Published: December 2015

<p class="estilocorpodetextoesquerda175cm"><span>O objetivo deste estudo é demonstrar, por meio de atitudes apontadas no texto embasadas em textos teóricos sobre o assunto, que Azdak, o juiz da obra “O Círculo de Giz Caucasiano” peça de Bertolt Brecht, apresenta uma postura ética coerente, transformada em lei - representada por ele mesmo - </span><span class="apple-converted-space"><span> </span></span><span>no momento subsequente, a qual é aplicada também coerentemente, apesar das aparentes contradições do personagem. Sendo que a ética apresentada era destoante da então defendida pelo poder estabelecido, o personagem pode ser considerado responsável pelo conflito ético apresentado na obra.</span></p>
IMAGINÁRIOS EM (DES)CONSTRUÇÃO: O LUGAR DO SUJEITO-PROFESSOR NO DISCURSO PUBLICITÁRIO GOVERNAMENTAL
Authors: Winchuar Marcio José De Lima , Venturini Maria Cleci 
Published: December 2015

<p>O presente artigo busca identificar os efeitos de sentido que sinalizam para a (des)construção da identidade do sujeito-professor por meio do discurso publicitário governamental. O funcionamento da publicidade pode produzir efeitos de sentidos que (re)produzem imaginários coletivos acerca desses sujeitos e, ao mesmo tempo, instauram outros. Para verificar como isso ocorre, pautamos nosso trabalho na análise de discurso, de orientação francesa e temos como <em>corpu</em>s de análise um vídeo que faz parte da campanha <em>seja um professor </em>do Ministério da Educação. A partir da materialidade, ressoam memórias pelas quais se produz o imaginário coletivo da sociedade e do que é ser professor na atualidade, à medida que o mesmo é representado como um profissional, cuja função é não só ensinar, mas promover o desenvolvimento de seu país.</p>
As cadeias globais de valor e a inserção da indústria brasileira
Authors: Ferreira Jonathan Dias , Schneider Mirian Beatriz 
Published: December 2015

<p>O objetivo deste trabalho foi estudar a situação do Brasil na chamada cadeia global de valor, como requisito para inserção internacional. Além disso, foi aplicado o Índice de Vantagem Comparativa (IVCR) com o objetivo de analisar a inserção da indústria brasileira no comércio mundial a partir dos anos 2000. Pode-se concluir que o Brasil participa na cadeia global de valor por ligações com outros países que utilizam insumos brasileiros em suas exportações. Analisando os produtos que compõem a participação do Brasil na cadeia global de valor, é possível notar que os mais presentes são para o fornecimento de recursos naturais, como a mineração, agricultura, metais básicos entre outros. Vale ressaltar que para o Brasil tirar proveito da cadeia global de valor, é preciso que o país participe das etapas de produção com maior valor agregado, que estimule investimentos e participação nas etapas de criação, de planejamento e desenvolvimento de novos produtos. </p>
Synchroniser les temps des acteurs autour du patient pour conjuguer qualité des soins, bien être au travail et efficience économique
Authors: Abad Monique , Johanet Stanislas 
Published: December 2015

Pour mesurer l’impact d’une amélioration de la synchronisation des temps médicaux et non médicaux autour du patient hospitalisé, les auteurs ont accompagné onze établissements de santé. Dans ces derniers, des actions de synchronisation des temps des professionnels ont été mises en œuvre dans les structures les plus sensibles : blocs opératoires, hospitalisation conventionnelle et ambulatoire, consultations externes, etc. Les auteurs analysent les effets induits sur ces sites de production de soins par une meilleure synchronisation des temps médicaux et non médicaux. Le soin réalisé par une équipe hospitalière est l’aboutissement d’une intervention collective. Mais collectif ne veut pas dire coordonné… Pour autant si de nombreuses publications font état d’une relation entre la sécurité des soins et la qualité de la communication au sein de l’équipe hospitalière (1), le sujet des impacts de la synergie temporelle des soignants autour du patient parait encore très peu exploré. Le projet d’accompagnement au développement de la synchronisation des temps médicaux et non médicaux a concerné onze établissements de santé essentiellement publics.
Les images de la police politique (DOPS) : utilisations, appropriations et controverses
Authors: Motta Rodrigo Patto Sá 
Published: December 2015

Cet article est un essai exploratoire sur les images des DOPS (Délégations ou Départements de l’ordre politique et social), qui étaient les principaux organes de la police politique au Brésil durant la majeure partie du XXe siècle. Ces images permettent deux approches possibles : d’une part, l’analyse de quelques photographies produites ou saisies par la police et la façon dont elles ont servi aux activités de surveillance et de répression des « subversifs » ; d’autre part, l’élaboration de réflexions préliminaires à partir des images critiques sur les DOPS, dont le but était de dénoncer les actions de la police politique et de décrire les policiers sous des traits négatifs. Le but de ce texte est de contribuer à l’historiographie qui examine les imaginaires et les usages politiques des images, ainsi qu’à l’étude des mécanismes de fonctionnement des appareils de répression politique.
Free Function Theory Through Matrix Invariants
Authors: Klep Igor , Špenko Špela 
Published: December 2015

Abstract
This paper concerns free function theory. Freemaps are free analogs of
analytic functions in several complex variables and are defined in terms of freely
noncommuting variables. A function of g noncommuting
variables is a function on g-tuples of square matrices
of all sizes that respects direct sums and simultaneous conjugation. Examples of
such maps include noncommutative polynomials, noncommutative rational functions,
and convergent noncommutative power series.
In sharp contrast to the existing literature in free analysis, this article
investigates free maps with involution, free analogs of real analytic functions.
To get a grip on these, techniques and tools from invariant theory are developed
and applied to free analysis. Here is a sample of the results obtained. A
characterization of polynomial free maps via properties of their
finite-dimensional slices is presented and then used to establish power series
expansions for analytic free maps about scalar and non-scalar points; the latter
are series of generalized polynomials for which an invarianttheoretic
characterization is given. Furthermore, an inverse and implicit function theorem
for free maps with involution is obtained. Finally, with a selection of carefully
chosen examples it is shown that free maps with involution do not exhibit strong
rigidity properties enjoyed by their involutionfree counterparts.
Successful Implementation of Clinical Information Technology
Authors: Hill V. , Bruner K. , Maciaz G. , Saucedo L. , Catzoela L. , Ramirez R. , Jacobs W.J. , Nguyen P. , Patel L. , Webster S.L. , Gellert G.A. 
Published: December 2015

SummaryObjectives: To identify and describe the most critical strategic and operational contributors to the successful implementation of clinical information technologies, as deployed within a moderate sized system of U.S. community hospitals.Background and Setting: CHRISTUS Health is a multi-state system comprised of more than 350 services and 60 hospitals with over 9 000 physicians. The Santa Rosa region of CHRISTUS Health, located in greater San Antonio, Texas is comprised of three adult community hospital facilities and one Children’s hospital each with bed capacities of 142–180. Computerized Patient Order Entry (CPOE) was first implemented in 2012 within a complex market environment. The Santa Rosa region has 2 417 credentialed physicians and 263 mid-level allied health professionals.Methods: This report focuses on the seven most valuable strategies deployed by the Health Informatics team in a large four hospital CHRISTUS region to achieve strong CPOE adoption and critical success lessons learned. The findings are placed within the context of the literature describing best practices in health information technology implementation.Results: While the elements described involved discrete de novo process generation to support implementation and operations, collectively they represent the creation of a new customer-centric service culture in our Health Informatics team, which has served as a foundation for ensuring strong clinical information technology adoption beyond CPOE.Conclusion: The seven success factors described are not limited in their value to and impact on CPOE adoption, but generalize to – and can advance success in – varied other clinical information technology implementations across diverse hospitals. A number of these factors are supported by reports in the literature of other institutions’ successful implementations of CPOE and other clinical information technologies, and while not prescriptive to other settings, may be adapted to yield value elsewhere.