bluuebunny/crossref_metadata_2025_split huggingface dataset:
Risk Factors for Urolithiasis in Gastrostomy Tube Fed Children: A Case-Control Study
Authors: Johnson Emilie K. , Lightdale Jenifer R. , Nelson Caleb P. 
Published: June 2013

BACKGROUND AND OBJECTIVE:
Pediatric patients who are fed primarily via gastrostomy tube (G-tube) may be at increased risk for urolithiasis, but no studies have specifically examined risk factors for stones in this population. We aimed to determine clinical differences between G-tube fed (GTF) patients with and without stones, in hopes of identifying modifiable factors associated with increased risk of urolithiasis.

METHODS:
We conducted a retrospective case-control study, matching GTF patients with urolithiasis (cases) to GTF children without urolithiasis (controls) based on age (±1 year) and gender. Bivariate comparisons and matched logistic regression modeling were used to determine the unadjusted and adjusted associations between relevant clinical factors and urolithiasis.

RESULTS:
Forty-one cases and 80 matched controls (mean age 12.0 ± 6.5 years) were included. On bivariate analysis, factors associated with stone formation included: white race, urinary tract infection (UTI), topiramate administration, vitamin D use, malabsorption, dehydration, 2-year duration with G-tube, and whether goal free water intake was documented in the patient chart. On regression analysis, the following factors remained significant: topiramate administration (odds ratio [OR]: 6.58 [95% confidence interval (CI): 1.76–24.59]), UTI (OR: 7.70 [95% CI: 1.59–37.17]), and &lt;2 years with a G-tube (OR: 8.78 [95% CI: 1.27–52.50]).

CONCLUSIONS:
Our findings provide a preliminary risk profile for the development of urolithiasis in GTF children. Important associations identified include UTI, topiramate administration, and shorter G-tube duration, which may reflect subclinical chronic dehydration. Of these, topiramate use represents the most promising target for risk reduction.
Individual and Center-Level Factors Affecting Mortality Among Extremely Low Birth Weight Infants
Authors: Alleman Brandon W. , Bell Edward F. , Li Lei , Dagle John M. , Smith P. Brian , Ambalavanan Namasivayam , Laughon Matthew M. , Stoll Barbara J. , Goldberg Ronald N. , Carlo Waldemar A. , Murray Jeffrey C. , Cotten C. Michael , Shankaran Seetha , Walsh Michele C. , Laptook Abbot R. , Ellsbury Dan L. , Hale Ellen C. , Newman Nancy S. , Wallace Dennis D. , Das Abhik , Higgins Rosemary D. ,   for the Eunice Kennedy Shriver National Institute of Child Health and Human Development Neonatal Research Network
Published: June 2013

OBJECTIVE:To examine factors affecting center differences in mortality for extremely low birth weight (ELBW) infants.METHODS:We analyzed data for 5418 ELBW infants born at 16 Neonatal Research Network centers during 2006–2009. The primary outcomes of early mortality (≤12 hours after birth) and in-hospital mortality were assessed by using multilevel hierarchical models. Models were developed to investigate associations of center rates of selected interventions with mortality while adjusting for patient-level risk factors. These analyses were performed for all gestational ages (GAs) and separately for GAs &lt;25 weeks and ≥25 weeks.RESULTS:Early and in-hospital mortality rates among centers were 5% to 36% and 11% to 53% for all GAs, 13% to 73% and 28% to 90% for GAs &lt;25 weeks, and 1% to 11% and 7% to 26% for GAs ≥25 weeks, respectively. Center intervention rates significantly predicted both early and in-hospital mortality for infants &lt;25 weeks. For infants ≥25 weeks, intervention rates did not predict mortality. The variance in mortality among centers was significant for all GAs and outcomes. Center use of interventions and patient risk factors explained some but not all of the center variation in mortality rates.CONCLUSIONS:Center intervention rates explain a portion of the center variation in mortality, especially for infants born at &lt;25 weeks’ GA. This finding suggests that deaths may be prevented by standardizing care for very early GA infants. However, differences in patient characteristics and center intervention rates do not account for all of the observed variability in mortality; and for infants with GA ≥25 weeks these differences account for only a small part of the variation in mortality.
Differences in Characteristics of Dying Children Who Receive and Do Not Receive Palliative Care
Authors: Keele Linda , Keenan Heather T. , Sheetz Joan , Bratton Susan L. 
Published: June 2013

OBJECTIVE:Comparing demographic and clinical characteristics associated with receipt of palliative care (PC) among children who died in children’s hospitals to those who did not receive PC and understanding the trends in PC use.METHODS:This retrospective cohort study used the Pediatric Health Information System database. Children &lt;18 years of age who died ≥5 days after admission to a Pediatric Health Information System hospital between January 1, 2001, and December 31, 2011 were included. Receipt of PC services was identified by the International Classification of Diseases, Ninth Revision code for PC. Diagnoses were grouped using major diagnostic codes. International Classification of Diseases codes and clinical transaction codes were used to evaluate all interventions.RESULTS:This study evaluated 24 342 children. Overall, 4% had coding for PC services. This increased from 1% to 8% over the study years. Increasing age was associated with greater receipt of PC. Children with the PC code had fewer median days in the hospital (17 vs 21), received fewer invasive interventions, and fewer died in the ICU (60% vs 80%). Receipt of PC also varied by major diagnostic codes, with the highest proportion found among children with neurologic disease.CONCLUSIONS:Most pediatric patients who died in a hospital did not have documented receipt of PC. Children receiving PC are different from those who do not in many ways, including receipt of fewer procedures. Receipt of PC has increased over time; however, it remains low, particularly among neonates and those with circulatory diseases.
Deposition and characterization of nanostructured Cu2O thin-film for potential photovoltaic applications
Authors: Gupta Nishant , Singh Rajendra , Wu Fan , Narayan Jagdish , McMillen Colin , Alapatt Githin F. , Poole Kelvin F. , Hwu Shiou-Jyh , Sulejmanovic Dino , Young Matthew , Teeter Glenn , Ullal Harin S. 
Published: June 2013

Abstract
Functional oxide films with engineered ferroelectric properties
Authors: Wördenweber R. , Ehlig T. , Schubert J. , Kutzner R. , Hollmann E. 
Published: June 2013

ABSTRACTThe ferroelectric properties of anisotropically strained SrTiO3 films are analyzed by detailed measurements of the complex dielectric constant as function of temperature, frequency, bias voltage and electric field direction. The strain induces a relaxor-ferroelectric phase that persists up to room temperature. However, transition temperature and ferroelectric properties strongly depend on the orientation of the electric field and therefore on the amount of structural strain in the given electric field direction. Frequency and time dependent relaxation experiments reveal the presence and properties of polar nanoregions with randomly distributed directions of dipole moments in the film.
Geomechanics Coupled Simulation of Different Completion Schemes in a Stress Sensitive Reservoir
Authors: Restrepo A. , Rendon N. , Marin R. , Lara V. , Osorio G. , Velasquez J. , Lopez C. , Ocampo A. 
Published: June 2013

Abstract
The development of fields located in the Colombian Foothills face important challenges related to fluid compositional character, highly heterogeneous and stressed tectonic environments. Complex and high cost operations make well productivity maximization a key component for an optimal reservoir management strategy. Based on this high risk scenario and on the uncertainties related to complex geological heterogeneities, a coupled simulation excercise has been performed in order to estimate the best engineering solution that allows completing and producing future wells under the optimal scenario of initial and sustained productivity, operational flexibility and mitigation of investment risk.
The study herein presented includes a complete sensitivity analysis and uncertainty assessment of four different well completion schemes for production: a single vertical well, a vertical hydraulically fractured well and two multilateral wells, one with one producing branch and other with two producing branches. In all cases, a non-linear hypoelastic constitutive model was fully coupled to the reservoir simulator and permeability changes were included based on its dependence on the mean effective stress.
Results suggests that geomechanics effects can lead to significant variations in final recovery depending on completion scheme. This input becomes now critical for final well designs specially in naturally fractured - highly anisotropic zones in which conventional approaches have led to rapid water encroachment and/or near wellbore permeability reduction due to increased effective stress.
Evaluation of Scale Mitigation Options for a Mature Gas Field
Authors: Mokdad Belkhir , Akuanyionwu Obinna , Fava Guido , Wahid Fazrie , Elghanduri Khaled , Stefanescu Dan Paul 
Published: June 2013

Abstract
The deposition and accumulation of inorganic scales is a major concern for oil and gas producing companies worldwide. This concern typically stems from two main factors: the strong possibility of total production loss due to scale plugging of production conduits, and the significant impact that managing scaling challenges could have on field economics. These issues become even more pronounced for marginal and mature field developments.
Following the retrieval of scale deposits (predominantly calcite and halite) in a number of wells in a mature gas field in eastern Europe, implementing an effective scale-management strategy became top priority. This paper discusses the principal components of scale-management strategy formulation, including the procedures adopted to explicitly identify, assess, and rank at-risk producer wells in the field. A systematic approach was used to combine the main aspects of scale management, ranging from thermodynamic predictions of scale deposition to a scaling risk assessment. Additionally, the approach was adapted to address the significant degree of uncertainty emanating from the water chemistry and pressure/temperature history, eventually enabling the identification and proposal of adequate mitigation plans with attendant potential for optimization of field production.
Workflows developed on this field are described, including field results as examples. Our work helped to create a risk matrix and well ranking based on saturation ratio. It helped to characterize the location of the precipitating scale. Finally, we highlight the different remediation techniques that have been proposed and their success rate based on the recommendations following their field implementation three years later.
Reservoir Permeability from Wireline Formation Testers
Authors: Cantini Stefano , Baldini Davide , Beretta Enzo , Loi Daniele , Mazzoni Stefano 
Published: June 2013

Abstract
Permeability is an essential parameter in order to properly define well and reservoir performance. Permeability is also relevant in overall reservoir management and development, including reservoir simulation, gravity drainage, flood performance, assessment of gas or water coning.
Attempts to derive reservoir permeability with wireline formation testers started in the 70s, calculating drawdown mobility from pretests taken with a single probe. However, despite drawdown mobility provides valuable information about reservoir behavior, it is not comparable to reservoir permeability traditionally measured with Drill Stem Tests (DST). This is due to its limited depth of investigation, the upscaling difficulties and the fact that probe type tools do not develop a complete radial flow regime. In the 90s the introduction of the latest generation of wireline formation testers, equipped with straddle packer modules able to develop radial flow with radius of investigation in the order of tens of meters, enabled measurement of permeability at reservoir scale. These tests, called miniDST or IPTT (Interval Pressure Transient Testing), represent in some cases a valid alternative to conventional DST tests, especially for the environmental, safety and the economic aspects.
MiniDST/IPTT method is here described, from the design phase, very important in order to obtain a reliable test, to final interpretation, with a critical review of the method applicability, its limitations and comparison versus traditional DST. Latest developments in terms of hardware and interpretation techniques are included.
Case histories are also provided in order to demonstrate the IPTT application, its integration with the other permeability sources and the reservoir model, including comparison between simulated reservoir deliverability and measured well test rates.
Architecture and .NET Implementation of Multi- Robot Management System
Authors: Liekna Aleksis , Nikitenko Agris 
Published: June 2013

Abstract
In this paper we propose architecture for a multirobot management system, ways of identifying the implementation challenges and analyzing how to address these challenges by using out-of-the-box features provided by .NET framework. We make a departure from using agent or robot specific development tools in order to take a fresh look at one of the industry leading general purpose development platforms that is .NET framework to analyze its applicability to multi-robot system development. For verification of the proposed ideas in practice, a multi-robot system is implemented using physical iRobot Roomba robots as the robot platform.
Algorithm of Ontology Transformation to Concept Map for Usage in Semantic Web Expert System
Authors: Verhodubs Olegs , Grundspenkis Janis 
Published: June 2013

Abstract
The main purpose of this paper is to present an algorithm of OWL (Web Ontology Language) ontology transformation to concept map for subsequent generation of rules and also to evaluate the efficiency of this algorithm. These generated rules are necessary to supplement and even to develop SWES (Semantic Web Expert System) knowledge base. This paper is a continuation of the earlier research of OWL ontology transformation to rules.
L'« intégration linguistique » en question
Authors: Calinon Anne-Sophie 
Published: June 2013

Que signifie l’expression « intégration linguistique » ? L’objectif de cet article est de cerner ce que l’on entend par « intégration linguistique » dans les discours institutionnels et scientifiques pour, ensuite, en proposer une définition précise afin de renforcer la pertinence de son utilisation dans le champ de la sociolinguistique. Notre hypothèse principale est que cette expression ne « dit » pas, dans tous les sens du terme, ce qu’elle signifie. D’une part, l’analyse linguistique de cette locution permet de conclure que sa composition sémantique contribue à entretenir le mythe du rôle primordial et suffisant de la langue dans les processus d’intégration. D’autre part, les sens des occurrences de cette expression observés dans les discours académiques et institutionnels montrent qu’ils varient très fortement selon les utilisateurs et les contextes sociopolitiques dans lesquels ils apparaissent sans qu’ils ne soient clairement définis. Ce manque d’assises théoriques entraînerait une utilisation imprécise et marquée. En se basant sur ces différents éléments d’analyse discursive et linguistique, nous proposons que l’expression « intégration linguistique », dans les recherches scientifiques, soit restreinte au seul contexte micro, celui où les individus en situation de mobilité expriment, racontent comment la/les langue/s a/ont été un élément, une entrave, un objet de désir ou de rejet dans leurs processus d’intégration.
Atteindre l'interdiscours par la circulation des discours et du sens
Authors: Garric Nathalie , Longhi Julien 
Published: June 2013

Nous étudions, par deux exemples d’hétérogénéité non marquée (publicité Virgin Radio et allocution de M. Le Pen), les relations interdiscursives entre discours politique et discours publicitaire. À l’aide des notions d’interdiscours et de formation discursive (Pêcheux), prolongées par celles de doxa et de stéréotypie (Sarfati), nous décrivons les fonctionnements à l’œuvre, étudions leurs enjeux socio-idéologiques et envisageons leurs implications théoriques pour une sémantique discursive. La notion de frontière est ainsi abordée dans une perspective discursive, à travers notamment les relations entre idéologie et doxa, et le concept d’idéologisation. En questionnant les frontières du discours politique et publicitaire, nous montrons que le passage de l’un à l’autre dépasse le simple mimétisme stylistique, ou la stratégie rhétorique : ce changement importe avec lui un ensemble d'éléments propres à la situation d’échange, vus comme sémiotisation spécifique d’objets, dont la réussite dépend des topiques propres au genre et au discours. Le questionnement des frontières peut se situer à un niveau métadiscursif (cas de Marine Le Pen) montrant un dysfonctionnement socio-discursif dans l’espace public, mais l’interdiscursivité est aussi et surtout subversive, questionnant alors la frontière entre dicible et indicible, créant et confrontant des réseaux de conflictualité entre topiques divergentes.
Critical Thinking of Registered Nurses in a Fellowship Program
Authors: Zori Susan , Kohn Nina , Gallo Kathleen , Friedman M. Isabel 
Published: June 2013

Background:
Critical thinking is essential to nursing practice. This study examined differences in the critical thinking dispositions of registered nurses (RNs) in a nursing fellowship program.

Methods:
Control and experimental groups were used to compare differences in scores on the California Critical Thinking Disposition Inventory (CCTDI) of RNs at three points during a fellowship program: baseline, week 7, and month 5. The control group consisted of RNs who received no education in critical thinking. The experimental group received education in critical thinking using simulated scenarios and reflective journaling.

Results:
CCTDI scores examined with analysis of variance showed no significant difference within groups over time or between groups. The baseline scores of the experimental group were slightly higher than those of the control group. Chi-square analysis of demographic variables between the two groups showed no significant differences.

Conclusion:
Critical thinking dispositions are a combination of attitudes, values, and beliefs that make up one’s personality based on life experience. Lack of statistical significance using a quantitative approach did not capture the development of the critical thinking dispositions of participants. A secondary qualitative analysis of journal entries is being conducted.

J Contin Educ Nurs
2013;44(8):374–380.
A Moving Pseudo-Boundary MFS for Three-Dimensional Void Detection
Authors: Karageorghis Andreas , Lesnic Daniel , Marin Liviu 
Published: June 2013

AbstractWe propose a new moving pseudo-boundary method of fundamental solutions (MFS) for the determination of the boundary of a three-dimensional void (rigid inclusion or cavity) within a conducting homogeneous host medium from overdetermined Cauchy data on the accessible exterior boundary. The algorithm for imaging the interior of the medium also makes use of radial spherical parametrization of the unknown star-shaped void and its centre in three dimensions. We also include the contraction and dilation factors in selecting the fictitious surfaces where the MFS sources are to be positioned in the set of unknowns in the resulting regularized nonlinear least-squares minimization. The feasibility of this new method is illustrated in several numerical examples.
"I Always Had My Instrument": The Story of Gabriella Ramires
Authors: Kruse Adam J. 
Published: June 2013

Abstract
The purpose of this instrumental case study is to better understand the academic, social and musical experiences of a Chicana music education student. Semi-structured interviews with a third-generation Chicana student at a Midwestern university explored her academic, social, and musical experiences that preceded her pursuit of an undergraduate music education degree. Due to the current level of academic and social success enjoyed by this student and her access to a wealth of social capital and successful academic models, she is presented as a critical case. Barriers to academic and social pursuits as well as resilience to these barriers related closely to aspects of identity navigation and social capital interaction in this student’s experience. The role of music, music education, and specific music educators acted as crucial ingredients for her eventual success. Implications for music educators and researchers include a call for additional support and greater understanding of potentially marginalized student populations.
Trading Hindemith for "Hugs, High-fives, and Handshakes": One Preservice Music Teacher’s Decision to Teach Elementary General Music
Authors: Shouldice Heather Nelson 
Published: June 2013

AbstractExisting research suggests that the high school ensemble experience is often a strong influence in the decision to teach music and that the majority of music education students plan to teach in a secondary ensemble setting. The purpose of this instrumental case study was to explore the experiences and beliefs of one male undergraduate music education student who chose a student-teaching placement (and subsequent career) in an elementary general music setting rather than his original intent to become a band director. Analysis of interviews, email correspondence, teaching videos, and journal entries revealed four emergent themes in his decision to teach elementary general music: (a) the influence of undergraduate coursework, (b) the participant’s tendency to be student-centered, (c) the need for broadening students’ musical skills and understanding, and (d) dissatisfaction with the current band culture. Findings suggest that music teacher education and future music education research might focus on teacher/director role perceptions, beliefs about the purpose of music education, and critical incidents that can impact career decisions in preservice music teachers, as well as the role of music education coursework in music teacher identity development.
El friulano como resistencia de la identidad: Pasolini y Casarsa Della Delizia.
Authors: Rey Mimoso-Ruiz Bernadette 
Published: June 2013

En un momento en que Europa, la Unión Europea, representa una auténtica encrucijada donde se conjugan naciones, estados, culturas, lenguas… las maneras en que la universalidad del arte y la especificidad del idioma componen sus fuerzas respectivas —en unas tensiones tal vez, y a la vez, inevitables, necesarias, destructivas, productivas— suponen una llamada de atención para pensar la complejidad de las formas de comunicación en relación a las vías de acción política, a la vez que a los residuos psico-ontológicos e históricos de la condición original de toda producción cultural. Encontramos un vivo ejemplo de esta complejidad y de aquella composición de fuerzas en lo que supuso la producción poética temprana de uno de los talentos contemporáneos más polifacéticos y controvertidos, Pier Paolo Pasolini. Sus prácticas literarias, artísticas, existenciales, encuentran desde sus inicios —pero impregnan también todo el devenir de su obra— un factor a la vez de resistencia y de acción en la forma misma de su expresión a través de un idioma —el friulano— que atestigua la externalidad de una lucha geopolítica e histórica enlazada a una interioridad psico-genealógica. Todo lo cual nos puede aportar claves para comprender mejor nuestro tiempo —la idea misma de una Italia siempre convulsa (como hoy sigue siéndolo), de una España tensionada también por lenguas e identidades, de una Europa caleidoscópica— así como para conocer mejor al inconmensurable Pasolini desde su temprana emergencia. Todo ello en relación a las prácticas comunicativas, artísticas, culturales, ideológicas, identitarias…