bluuebunny/crossref_metadata_2025_split huggingface dataset:
Inflow Profiling in Challenging Complex Deep Gas Environment
Authors: AlSharif Tasneem , AlMalki Bandar , Bawazir Mustafa , Zeybek Murat , Zaouali Zouhir 
Published: December 2013

Abstract
Sustaining long-term well production in deep gas wells can exhibit unique challenges in shaly sands. The wells can be vertical or slanted gas producers and completed with stand-alone screens. The challenges were to quantify zonal contributions, detect smaller water entries on these high-temperature deep gas wells where reservoir heterogeneity with different depletion layers can result in strong crossflow, and evaluate the existing sand formation behind the screen to avoid restricting the wells’ productivity.
This paper describes an integrated approach taken to overcome these challenges with three field examples. A multiphase production logging tool was run to measure the water flow together with the gas contributions across the stand-alone screens on these wells. A pulsed neutron logging tool was run to identify the small amount of water by using a water flow log model. To assess and evaluate the conditions of sand behind the screens, two independent logging techniques were implemented: silica activation and carbon–oxygen inelastic silicon yield techniques.
A combination of pre-job planning, an optimized logging program, and proactive real-time monitoring allowed a safe logging operation by drastically minimizing the time exposed by the tool downhole in a high-temperature environment. Early monitoring of water production is important to achieve optimal well productivity and reduce the possibility of the hydrate formation obstructing the flow lines. The source of sand production and the quality of the packing behind the screen were also evaluated. This best practice was established in the field and will greatly improve well deliverability and maximize gas field production.
Measurement in Financial Reporting: The Need for Concepts
Authors: Barth Mary E. 
Published: December 2013

SYNOPSIS
The Conceptual Framework neither specifies the objective or definition of accounting measurement, nor provides a conceptual basis for choosing among alternative measurement bases. This paper offers a starting point for developing measurement concepts based on existing Framework concepts, including the objective of financial reporting, the qualitative characteristics of useful financial information, and the definitions of assets and liabilities. The paper focuses on subsequent measurement of individual assets and liabilities and concludes that fair value measurement is more consistent with existing concepts than either modified or unmodified historical cost. Although unmodified historical cost is consistent with some concepts, modified historical cost—which is widely used today—largely is not. Also, aggregate amounts, such as total assets and total liabilities based on modified or unmodified historical cost, lack meaning. Because financial statements include such aggregate amounts and changes in amounts of individual assets and liabilities determine comprehensive income, measurement concepts also need to contemplate these measurements.
Peregrine—Twenty Years of Fraudulent Cash Balances
Authors: Elder Randal J. , Janvrin Diane J. , Caster Paul 
Published: December 2013

ABSTRACT
In July 2012, Peregrine Financial Group filed for bankruptcy following the discovery that $215 million in customer balances had been embezzled. Investigation revealed that its Chief Executive Officer, Russell Wasendorf, Sr., fooled auditors and regulators for 20 years by preparing fictitious bank statements and cash balance confirmations to hide the theft of cash. The fraud was uncovered when Peregrine's regulator, the National Futures Association (NFA), demanded that Peregrine participate in an electronic confirmation process for verification of customer accounts. This case discusses how the fraud was allowed to go undetected for 20 years, the importance of auditing cash, and how new electronic confirmation technology improves the ability to authenticate confirmation responses. The case is suitable for use in both auditing and accounting information system courses.
Thermodynamic investigation of the binary and ternary complexes involving 1-aminocyclopropane carboxylic acid with reference to plant hormone
Authors: Shoukry Mohamed , Hassan Safaa 
Published: December 2013

Abstract
Complex formation equilibria of 1-aminocyclopropane carboxylic acid (ACC) and 3,3-bis(1-methylimidazol-2-yl) propionic acid (BIMP) with metal ions Cu2+, Ni2+, Co2+, Zn2+, Mn2+ and Fe2+ were investigated. ACC forms 1:1 and 1:2 complexes in addition to the hydrolysed form of the 1:1 complex, except in the case of Mn2+ and Fe2+, where the hydrolysed complex is not formed. BIMP forms 1:1 and 1:2 complexes in addition to the hydrolsed form of the 1:1 complex in the case of Mn2+ and Cu2+, however the hydrolysed complex is not detected for Ni2+, Co2+, Zn2+ and Fe2+. The concentration distribution diagrams of the complexes were determined. The Fe2+-complex with BIMP is exothermic and the thermodynamic parameters were calculated. The effect of organic solvent on the acid dissociation constants of 1-aminocyclopropane carboxylic acid (ACC) and 3,3-bis(1-methylimidazol-2-yl) propionic acid (BIMP) and the formation constants of Fe2+ complexes were investigated. Fe2+ forms a mixed-ligand complex with ACC and BIMP with stoichiometric coefficients 1:1:1. The formation constant was determined. The ternary complex is enhanced by back donation from the negatively charged 1-aminocyclopropane carboxylate to the π-system of BIMP. From the concentration distribution diagram, the ternary complex prevails in the physiological pH range.
Lead and cadmium atomic absorption determination in solid carbonized food samples using flame-furnace atomizer
Authors: Lugovyy Kostyantyn , Buhay Olexander , Alemasova Antonina 
Published: December 2013

Abstract
Direct atomic absorption solid sampling analysis using flame-furnace atomizer enables a significant decrease in the analysis duration, to avoid sample pollution and to exclude toxic reagents. The selection of the chemical modifiers decreasing the detection limit and improving the results repeatability is based on the analyte’s free atoms formation mechanism. The developed kinetic approach has allowed to determine pre-exponential factors k0 and apparent activation energies Ea of atomization processes for Pb(II) and Cd(II) compounds and to propose effective chemical modifiers sodium N,N-diethyldithiocarbamate and urea for food samples. The express and precision technique for lead and cadmium determination in food, using proposed chemical modifiers and carbonization techniques was developed.
Spectral properties and photophysical behaviour of water soluble cationic Mg(II) and Al(III) phthalocyanines
Authors: Idowu Mopelola , Arslanoğlu Yasin , Nyokong Tebello 
Published: December 2013

Abstract
Peripherally and non-peripherally tetrasubstituted-[(N-methyl-2-pyridylthio)]phthalocyaninato magnesium (II) (5 and 6) and chloro aluminium (III) (7 and 8) tetraiodide have been synthesized and characterized. The photophysical properties of the complexes in dimethyl sulfoxide (DMSO) and aqueous medium in the presence and absence of cremophore EL have been studied. These complexes show high solubility in aqueous medium though they were aggregated. The triplet state quantum yields (FT) and the triplet lifetimes (tT) were found to be higher in DMSO with ΦT ranging from 0.32 to 0.51, while tT ranged from 282 to 622 ms in DMSO, compared to aqueous medium (pH 7.4 buffer) where ΦT ranged from 0.15 to 0.19 and tT from 26 to 35 ms. Addition of cremophore EL in aqueous solution resulted in partial disaggregation and increased photoactivity. The fluorescence lifetimes of the complexes showed strong dependence on their immediate environment. The ionic magnesium(II) and aluminium(III) phthalocyanines strongly bind to bovine serum albumin (BSA).
Signed k-independence in graphs
Authors: Volkmann Lutz 
Published: December 2013

Abstract
Let k ≥ 2 be an integer. A function f: V(G) → {−1, 1} defined on the vertex set V(G) of a graph G is a signed k-independence function if the sum of its function values over any closed neighborhood is at most k − 1. That is, Σx∈N[v]
f(x) ≤ k − 1 for every v ∈ V(G), where N[v] consists of v and every vertex adjacent to v. The weight of a signed k-independence function f is w(f) = Σv∈V(G)
f(v). The maximum weight w(f), taken over all signed k-independence functions f on G, is the signed k-independence number α
sk(G) of G.
In this work, we mainly present upper bounds on α
sk (G), as for example α
sk(G) ≤ n − 2⌈(Δ(G) + 2 − k)/2⌉, and we prove the Nordhaus-Gaddum type inequality $$\alpha _S^k \left( G \right) + \alpha _S^k \left( {\bar G} \right) \leqslant n + 2k - 3$$, where n is the order, Δ(G) the maximum degree and $$\bar G$$ the complement of the graph G. Some of our results imply well-known bounds on the signed 2-independence number.
Some problems on narrow operators on function spaces
Authors: Popov Mikhail , Semenov Evgenii , Vatsek Diana 
Published: December 2013

Abstract
It is known that if a rearrangement invariant (r.i.) space E on [0, 1] has an unconditional basis then every linear bounded operator on E is a sum of two narrow operators. On the other hand, for the classical space E = L
1[0, 1] having no unconditional basis the sum of two narrow operators is a narrow operator. We show that a Köthe space on [0, 1] having “lots” of nonnarrow operators that are sum of two narrow operators need not have an unconditional basis. However, we do not know if such an r.i. space exists. Another result establishes sufficient conditions on an r.i. space E under which the orthogonal projection onto the closed linear span of the Rademacher system is a hereditarily narrow operator. This, in particular, answers a question of the first named author and Randrianantoanina (Problem 11.9 in [Popov M., Randrianantoanina B., Narrow Operators on Function Spaces and Vector Lattices, de Gruyter Stud. Math., 45, Walter de Gruyter, Berlin, 2013]).
Time-resolved multi-channel optical system for assessment of brain oxygenation and perfusion by monitoring of diffuse reflectance and fluorescence
Authors: Milej D. , Gerega A. , Kacprzak M. , Sawosz P. , Weigl W. , Maniewski R. , Liebert A. 
Published: December 2013

AbstractTime-resolved near-infrared spectroscopy is an optical technique which can be applied in tissue oxygenation assessment. In the last decade this method is extensively tested as a potential clinical tool for noninvasive human brain function monitoring and imaging. In the present paper we show construction of an instrument which allows for: (i) estimation of changes in brain tissue oxygenation using two-wavelength spectroscopy approach and (ii) brain perfusion assessment with the use of single-wavelength reflectometry or fluorescence measurements combined with ICG-bolus tracking. A signal processing algorithm based on statistical moments of measured distributions of times of flight of photons is implemented. This data analysis method allows for separation of signals originating from extra- and intracerebral tissue compartments. In this paper we present compact and easily reconfigurable system which can be applied in different types of time-resolved experiments: two-wavelength measurements at 687 and 832 nm, single wavelength reflectance measurements at 760 nm (which is at maximum of ICG absorption spectrum) or fluorescence measurements with excitation at 760 nm. Details of the instrument construction and results of its technical tests are shown. Furthermore, results of in-vivo measurements obtained for various modes of operation of the system are presented.
Acteurs et dynamiques de médiation dans une plateforme de formation à l’intercompréhension
Authors: Araújo e Sá Maria Helena , de Carlo Maddalena , Melo-Pfeifer Sílvia 
Published: December 2013

Résumé: Après une révision du concept de médiation, tel qu’il circule dans les espaces sociaux et en Didactique des Langues, nous analysons dans ce texte les forums de discussion plurilingues d’une session de formation de formateurs à l’intercompréhension en Langues Romanes (Galapro), pour y dégager les spécificités des dynamiques de médiation (en ce qui concerne le soutien relationnel et socio-affectif, la co-médiation et le rôle de l’artefact technologique). Cette analyse nous permettra de discuter le rapport entre les dynamiques de médiation décrites et les rares manifestations de désaccord dans la situation de formation observée.
Reflexive Modes and Narrative Production: Metatextual Discourse in Contemporary American Narrative
Authors: Mackay Ruth 
Published: December 2013

Abstract:Nearly half a century has passed since the emergence of metafiction as a critical category. The self-consciousness associated with metafiction, however, has undergone profound transformations in the intervening period. Self-reflexivity—often a comedic destabilization and a simultaneous celebration of narrative structure—continues to emerge in increasingly complicated ways. This article examines contemporary metatextual discourse within the specific histories of literature and television but reads individual texts within the context of changing production values. It argues that metatextuality is an aesthetic suited to the precise demands of a context characterized by new narrative forms and platforms for production.
Subarachnoid hemorrhage as a psychological trauma
Authors: Hütter Bernd-Otto , Kreitschmann-Andermahr Ilonka 
Published: December 2013

Object
Despite the progress made in the management of subarachnoid hemorrhage (SAH), many patients complain of persistent psychosocial and cognitive problems. The present study was performed to explore the significance of psychological traumatization by the bleeding with respect to psychosocial results after SAH.

Methods
A series of 45 patients were examined in a cross-sectional study an average of 49.4 months after SAH by means of a quality-of-life questionnaire, the Beck Depression Inventory, the German version of the Impact of Event Scale (IES), and a clinical interview (Structured Clinical Interview for DSM Disorders) to make the diagnosis of chronic posttraumatic stress disorder (PTSD). Twenty-nine patients underwent surgery for treatment of a ruptured aneurysm; the remaining 16 patients had SAH of unknown origin.

Results
Twelve patients (27%) exhibited PTSD, and almost two-thirds of the 45 patients in the study reported substantial fear of recurrent hemorrhage. Not only the presence of PTSD but the severity of psychological traumatization as assessed by the IES explained up to 40% of the variance of the self- and proxy-rated impairments. Multivariate analyses revealed psychological traumatization (IES) and neurological state on admission (Hunt and Hess grade) as substantial predictors of the self- and proxy-rated quality of life, explaining 31% and 42% of the variance, respectively.

Conclusions
Even several years after SAH, the severity of psychological traumatization by the bleeding substantially determines the degree of psychosocial impairment. In the future, this issue should be addressed in the care of these patients. Furthermore, the development of psychological interventions is called for to prevent the emergence of PTSD after SAH.
Jean Casimir-Perier, de la fortune financière à l'infortune caricaturale
Authors: Jarnier Jean-Luc 
Published: December 2013

La personne de Jean Casimir-Perier, éphémère président de la République (six mois) en 1894-1895, suscita de nombreuses charges graphiques. Son nom (son grand-père ayant été président du Conseil de Louis-Philippe) et sa fortune d’héritier (il fut le principal actionnaire de la Compagnie des mines d’Anzin) furent principalement à l’origine de l’ire que son accession aux plus hautes responsabilités déclencha. Ceci, à l’heure où la « question sociale » imprégnait fortement le débat public tant à la Chambre des députés que dans la presse d’opposition. Nous proposons, selon l’appartenance politique des journaux auxquels les caricaturistes participaient, de mettre en lumière leurs arguments graphiques. Nous nous attacherons plus particulièrement à examiner ceux venant étriller l’hôte de l’Élysée eu égard à sa fortune financière.
Poincaré dans la caricature allemande
Authors: Brouland Pierre 
Published: December 2013

Raymond Poincaré compte parmi les dirigeants de la Troisième République les plus caricaturés dans la presse allemande. Cette situation s’explique aisément par le fait qu’il occupe des fonctions de premier plan lors de deux moments particulièrement conflictuels dans les relations franco-allemandes : la Première Guerre mondiale et l’occupation de la Ruhr. Alors que les dessins allemands présentent Poincaré plutôt comme un personnage ridicule et il pitoyable pendant la Grande Guerre, cette image se métamorphose au début des années 1920. Poincaré devient désormais l’incarnation du nationalisme français et est présenté comme l’ennemi implacable du peuple allemand. Même après les accords de Locarno, cette vision négative de l’ancien président de la République perdure.
Self-Reported Changes in the Implementation of Hospital-Based Health Promotion in Taiwan
Authors: Lee Chiachi Bonnie , Chen Michael S. , Powell Michael John , Chu Cordia Ming-Yeuk 
Published: December 2013

Purpose. To evaluate the pattern of perceived changes in the implementation of the Health Promoting Hospital (HPH) Initiative. Design. This was a cross-sectional study with a self-administered questionnaire, asking the correspondents what changes they perceived before and after adopting the HPH initiative. Setting. This study was conducted with 55 hospitals committed to the HPH in Taiwan, and 52 completed the questionnaire. Subjects. One coordinator in each of the 55 hospitals served as subject. Intervention. HPH seeks to improve health gains for its stakeholders by developing structure, cultures, decisions, and process conducive to health promotion. Measures. Perceived changes were measured in the areas of more resource inputs, changing work models, realigned implementation strategies, more programs, higher service volume, and improved quality control. Regarding realigned strategies, emphasizing the impact of healthy public policies, supportive environments, staff participation, individual knowledge and skills, and reorienting health services were measured. Analysis. Descriptive analysis was used to examine the pattern of “prevalence of changes.” Results. Changes were more prevalent in the domains of patients and community (both with averaged ranks = 1.8); “realigning strategies” was the area in which more changes were perceived (average rank = 1). Emphases on healthy public policies and reorienting health services were the leading changes (both averaged ranks = 2.4) regarding realigning strategies. Conclusion. The HPH initiative appeared to be an effective approach to build organizational capacity for health promotion.
Patterns and Predictors of Health Behaviors among Racially/Ethnically Diverse Residents of Low-Income Housing Developments
Authors: Harley Amy E. , Yang May , Stoddard Anne M. , Adamkiewicz Gary , Walker Renee , Tucker-Seeley Reginald D. , Allen Jennifer D. , Sorensen Glorian 
Published: December 2013

Purpose. To examine behavioral patterns and sociodemographic predictors of diet, inactivity, and tobacco use among a diverse sample of residents from low-income housing developments. Design. In this cross-sectional survey study, households and residents were randomly selected using multistage cluster sampling. Setting. The study was conducted in 20 low-income housing developments in the Boston, Massachusetts, metropolitan area. Subjects. Subjects were 828 residents who completed the survey (response rate = 49.3%). Forty-one percent of participants were Hispanic and 38% were non-Hispanic Black. Measures. Outcomes measured were diet, inactivity, and tobacco use. Predictors measured were age, race/ethnicity, gender, education, country in which the subject was born, language spoken, and financial hardship. Analysis. Logistic regression analyses were conducted to examine the association of three health behaviors with sociodemographic factors. Results. Age, gender, language spoken, and financial hardship showed significant relationships with all three behaviors. For example, those who reported less financial hardship (odds ratio [OR] = 1.75) were more likely to eat healthier. Residents who spoke no English, or at least one language in addition to English, were significantly more likely to report healthier eating (OR = 2.78 and 3.30, respectively) than those who spoke English only. Men were significantly more likely to report less healthy eating (OR = 0.65) than were women. Similar trends emerged for inactivity and tobacco use. Conclusion. Effective health promotion interventions in low-income housing developments that leverage protective factors while addressing risk factors have the potential to reduce income-related health disparities in these concentrated resource-deprived neighborhoods.
Costs of and benefits resulting from public library e-government service provision: Findings and future directions from an exploratory study
Authors: Mandel Lauren H. , Spears Laura I. , Guenther Debra , McClure Charles R. 
Published: December 2013

As the public trusts the library to provide access and support to use computers and the Internet, much of the burden of e-government service provision has shifted from government agencies to public libraries. This unfunded mandate contributes to libraries’ financial burdens in a time of radical public library funding cuts. Public libraries need to be able to identify the precise costs of this service provision, as well as its benefits, in order to justify additional financial or other resources to support these services, especially high-speed broadband connections to facilitate access to and use of e-government services. This paper present the findings of an exploratory study designed to identify the range of costs Indiana public libraries incur in their provision of e-government services, as well as the benefits of that service provision. The multi-method research design employed in this study offers one possible approach by which other states might develop a comprehensive perspective, including costs, of their public libraries’ e-government service provision.
Role of the Renin-Angiotensin-Aldosterone System and the Glutathione S-Transferase Mu, Pi and Theta Gene Polymorphisms in Cardiotoxicity after Anthracycline Chemotherapy for Breast Carcinoma
Authors: Vivenza Daniela , Feola Mauro , Garrone Ornella , Monteverde Martino , Merlano Marco , Lo Nigro Cristiana 
Published: December 2013

Background Anthracyclines are among the most active drugs against breast cancer, but can exert cardiotoxic effects eventually resulting in congestive heart failure (CHF). Identifying breast cancer patients at high risk of developing cardiotoxicity after anthracycline therapy would be of value in guiding the use of these agents. Aims We determined whether polymorphisms in the renin-angiotensin-aldosterone system (RAAS) and in the glutathione S-transferase (GST) family of phase II detoxification enzymes might be useful predictors of left ventricular ejection fraction (LVEF) kinetics and risk of developing CHF. We sought correlations between the development of cardiotoxicity and gene polymorphisms in 48 patients with early breast cancer treated with adjuvant anthracycline chemotherapy. Methods We analyzed the following polymorphisms: p.Met235Thr and p.Thr174Met in angiotensinogen ( AGT), Ins/Del in angiotensin-converting enzyme ( ACE), A1166C in angiotensin II type-1 receptor ( AGTR1A), c.-344T>C in aldosterone synthase ( CYP11B2), p.Ile105Val in GSTP1. Additionally, we analyzed the presence or absence of the GSTT1 and GSTP1 genes. A LVEF <50% was detected at least once during the 3 years of follow-up period in 13 out of 48 patients (27.1%). Conclusion RAAS gene polymorphisms were not significantly associated with the development of cardiotoxicity. GSTM1 may be useful as a biomarker of higher risk of cardiotoxicity, as demonstrated in our cohort of patients (p=0.147).