bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Triple Porosity Model for Shale Gas Reservoirs
Authors: Dehghanpour Hassan , Shirdel Mahdy 
Published: November 2011

Abstract
Naturally fractured shale reservoirs with multiple hydraulic fractures have been repeatedly described by dual porosity models. In these models the reservoir volume is divided into extremely low permeable shale matrix blocks surrounded by a fracture network. The low permeability of the matrix blocks limits the gas flow from matrix to the fracture. However, in many shale reservoirs unexpected high gas production has been observed which cannot be justified with the conventional dual porosity models.
Recent discoveries reveal that natural and induced micro fractures, may serve as hidden pathways for the communication between matrix and fracture network. Hence, one idea to more reliably model the gas production in shale reservoirs is incorporating micro fractures in the Dual porosity models.
In this paper, we hypothesis that the matrix blocks considered in the dual porosity model can themselves be considered a dual porosity media. We assume that the overall matrix system is composed of sub-matrices with nano Darcy permeability and micro fractures with milli to micro Darcy permeability. We assume that viscous Darcy flow is dominant in macro and micro fracture networks, and diffusion and desorption mechanisms are dominant in sub-matrices. Furthermore, we extend the existing transient and pseudo-steady-state dual porosity formulations, and develop a triple porosity model for the inner shale reservoir. We perform sensitivity analysis to the non-dimensional parameters including inter-porosity transmissivity ratios and storativity of each medium on the pressure transient behavior. We observe that the proposed model can be appropriately used to see the effect of the properties of each medium on the pressure response.
Geological Characteristics and Integrated Development Plan for Giant Naturally Fractured Basement Reservoirs
Authors: Nguyen Ngoc T. , Dang Cuong T. , Bae Wisup , Chen Zhangxin , Nguyen Anh L. , Phung Thuoc H. , Tran Phuong L. , Minh Toan N. 
Published: November 2011

Abstract
A great portion of the world’s oil reserves is contained in naturally fractured reservoirs. As the conventional oil and gas reservoirs have become significantly depleted whereas energy demand is sharply increases, NFRs play an important role in oil exploration and makes a large contribution toward oil and gas production worldwide. However, characterization of fractured reservoir is very complex as compared as conventional reservoirs. Lacking of experiences during production stages may quickly destroy entire reservoir. Therefore, the successful case studies as well as failure lessons should be highlighted for improving recovery efficiency in such complex reservoirs.
This paper aims to introduce two historical case studies of successful development plan for giant fractured granite basement reservoirs in Viet Nam. These reservoirs contain huge hydrocarbon resources in basement source rock and present a unique geological characterization, very high heterogeneity, high temperature and closure stress. A detailed geological understanding of the reservoir, along with a creative reservoir simulation, is needed to determine the optimal recovery method for these reservoirs. These are the keys to having a successful operation, as well as reducing uncertainties and achieving the most efficient of oilfield management.
With a large database collected from over twenty years of production period of over 215 wells, the authors developed a workflow for integrating between static and dynamic data. The geological characterization of two typical basement reservoirs was thoroughly analyzed to figure out their effect on recovery schemes. A new approach for building geological model by artificial neuron network technique was introduced, and these integrated results have been served as input data for simulation with IMEX in CMG simulator. Based on the reservoir modeling, we proposed a promising method for improving oil recovery factor by optimizing the well network locations, application of horizontal well and gaslift. From our historical experiences, the authors introduce the most appropriate method for overcoming the challenge of waterflooding operation and stimulation for fractured basement reservoirs.
Does Audit Fee Homogeneity Exist? Premiums and Discounts Attributable to Individual Partners
Authors: Taylor Stuart D. 
Published: November 2011

SUMMARY
This paper investigates the implied assumption, made in many audit fee determination studies, that, within a given audit firm, all partners produce a statistically identical level of audit quality and earn a statistically identical level of audit fees. This is referred to as the “homogeneity assumption.” However, this is contradicted by the individual auditor behavioral literature, which shows that different individual auditor characteristics can have an impact on audit quality. Given the fact that audit partners differ in their quality, this paper hypothesizes that different audit partners will be able to earn differing levels of fees. This hypothesis is tested by estimating an audit fee model using data from 822 Australian publicly listed companies for the year 2005. Australia is an ideal audit market for this research, as the disclosure of the name of the audit engagement partner in the audit report is mandatory. The empirical results indicate that individual audit partners earn individual audit fee premiums (or discounts) that are not explainable by the audit firms of which they are members.
Data Availability: All data have been extracted from publicly available sources.
How Partners' Views Influence Auditor Judgment
Authors: Peytcheva Marietta , Gillett Peter R. 
Published: November 2011

SUMMARY
Prior research has shown that auditors who learn superiors' views before making their own judgment are influenced by them (e.g., Peecher 1996; Tan et al. 1997; Cohen and Trompeter 1998; Brown et al. 1999; Wilks 2002). We use the theory of motivated reasoning (Kunda 1990, 1999) to examine the malleability of individual auditors' judgments after auditors have reached their own independent conclusions. In a between-subjects experiment with practicing auditors and audit students, we find that auditors who learn the views of their superiors after reaching their own judgment subsequently report that their original, independent judgment had been the same as that of their superiors. Our findings provide evidence that knowledge of superiors' views biases auditors' reports of their prior independent judgments, potentially inhibiting discussion and resolution of contrary views. Moreover, in our study this bias is not significantly different from the influence superiors' views have on auditors who learn those views prior to reaching their own conclusions. We discuss the implications of these findings for audit practice.
Data Availability: Contact the first author.
Documentation Requirements and Quantified versus Qualitative Audit Risk Assessments
Authors: Piercey M. David 
Published: November 2011

SUMMARY
The “not documented, not done” requirements of Public Company Accounting Oversight Board (PCAOB) Auditing Standard No. 3 substantially increased auditors' obligations to document their risk assessments. This study examines a potentially unintended consequence of such a requirement on auditors who have pressure to reach lenient, client-preferred risk assessments. Because documentation requirements potentially expose auditors' lenient judgments to more ex post scrutiny (e.g., regulator inspection, litigation), one would ordinarily not expect that adding them would cause auditors with client pressures to become more lenient. However, I expect that adding documentation requirements leads auditors who assess risk in qualitative (rather than quantified) terms to engage more in a specific word-smithing strategy that is shown by prior research to help rationalize reaching more lenient audit conclusions. Thus, even though documentation potentially exposes more lenient judgments to scrutiny, I show that auditors assessing risk in qualitative terms respond to this pressure by rationalizing their lenient assessments even more vigilantly. This leads to more lenient judgments, ironically, as a result of adding the documentation requirement. Adding documentation requirements does not have this effect on quantified risk assessments. Prior research also suggests that auditors typically assess risk in words. Thus, under common conditions, the PCAOB's documentation requirements may have unintended effects, with adverse implications for audit effectiveness contrary to their regulatory intent.
Data Availability: Contact the author.
99mTc-ECD SPECT at rest and activation in young patients with schizophrenia
Authors: Nocuń Anna , Pawęzka Justyna , Chrapko Beata , Szymona Kinga , Smoleń Agata , Karakuła Hanna 
Published: November 2011

Abstract
The aim of the study was to localize brain parts involved in executive functions in patients with schizophrenia by means of 99mTc-ECD single photon emission computed tomography (SPECT) with 3-dimensional automatic software. We examined 12 men with schizophrenia (mean age 29±3.9 years). Brain perfusion SPECT was performed at rest and during Wisconsin Card Sorting Test (WCST). Two types of quantitative SPECT analysis were applied; voxel-based and volume of interest (VOI)-based. With voxel-based approach, rest and activation SPECT were compared. VOI-based analysis allowed for correlation of regional cerebral blood flow (rCBF) in 20 VOIs with WCST scores. In voxel-based analysis, the patterns of rCBF decrease and increase after activation varied between patients, with combinations of different brain regions involved. In VOI-based approach, the only statistically significant difference between activation and rest was rCBF decrease in the left basal ganglia (p=0.028). The thalami and right temporal cortex correlated with the greatest number of WCST scores, followed by left occipital cortex and left cerebellum. In conclusion, our results suggest that patterns of WCST activation and deactivation vary between patients with schizophrenia. Among the network of involved brain structures, right temporal cortex and thalami appear to play the major role.
Metastatic lung angiosarcoma from a femoral subperiosteal origin
Authors: Vassalou Evi , Perdikakis Evangelos , Giannikaki Elpida , Mavroudis Dimitris , Katonis Pavlos , Karkavitsas Nikolaos , Karantanas Apostolos 
Published: November 2011

Abstract
Primary malignant vascular bone tumors are unusual and include hemangioendothelioma, epitheloid hemangioendothelioma and angiosarcoma. Although few cases of primary bone angiosarcomas have been reported, those of femoral origin are even more infrequent. Such tumors diagnosis may be challenging due to their radiographic and histologic variety. We present a case of a 24-yearold woman with a subperiosteal diaphyseal angiosarcoma originating from the femoral bone and metastatic to the lung at the time of diagnosis. The clinical, histological and radiological features of this extremely rare lesion are presented.
Pattern recognition approach to classifying CYP 2C19 isoform
Authors: Krawczyk Bartosz 
Published: November 2011

Abstract
In this paper a pattern recognition approach to classifying quantitative structure-property relationships (QSPR) of the CYP2C19 isoform is presented. QSPR is a correlative computer modelling of the properties of chemical molecules and is widely used in cheminformatics and the pharmaceutical industry. Predicting whether or not a particular chemical will be metabolized by 2C19 is of primary importance to the pharmaceutical industry. This task poses certain challenges. First of all analyzed data are characterized by a significant biological noise. Additionally the training set is unbalanced, with objects from negative class outnumbering the positives four times. Presented solution deals with those problems, additionally incorporating a throughout feature selection for improving the stability of received results. A strong emphasis is put on the outlier detection and proper model validation to achieve the best predictive power.
Maintenance of Efficacy and Safety with Subcutaneous Golimumab Among Patients with Active Rheumatoid Arthritis Who Previously Received Intravenous Golimumab
Authors: TAYLOR PETER C. , RITCHLIN CHRISTOPHER , MENDELSOHN ALAN , BAKER DANIEL , KIM LILIANNE , XU ZHENHUA , MACK MICHAEL , KREMER JOEL 
Published: November 2011

Objective.To evaluate the efficacy/safety of subcutaneous (SC) golimumab in patients with rheumatoid arthritis (RA) who previously received intravenous (IV) golimumab with or without methotrexate (MTX).Methods.Adult patients with RA (n = 643) with persistent disease despite MTX (≥ 15 mg/wk for ≥ 3 months) were randomized to IV placebo + MTX (n = 129) or IV golimumab 2–4 mg/kg (± MTX) every 12 weeks (n = 514). Patients who completed the study through Week 48 could participate in the longterm extension (LTE), comprising open-label golimumab 50 mg SC every 4 weeks (± MTX) for 24 weeks (LTE-0 to LTE-24) followed by 16 weeks of safety followup (LTE-24 to LTE-40; MTX could be adjusted).Results.At Week 48, 28% (nominal p < 0.001 vs placebo), 11%, and 8% of patients who received IV golimumab + MTX, golimumab alone, and placebo + MTX, respectively, achieved ≥ 50% improvement in the American College of Rheumatology response criteria (ACR50). Among the 505 patients who entered the LTE and were still participating, the proportion of patients treated with golimumab 50 mg SC (± MTX) achieving an ACR50 response increased to 44% at both LTE-14 and LTE-24. ACR20, ACR70, and 28-joint Disease Activity Score using C-reactive protein exhibited similar response patterns as ACR50. Infections were the most commonly reported adverse events through the end of IV golimumab dosing (37% placebo + MTX, 45% golimumab, 51% golimumab + MTX) and with SC golimumab from LTE-0 through LTE-40 (35% golimumab, 36% golimumab + MTX). Concomitant MTX use yielded lower incidences of antibodies to SC golimumab and injection-related reactions.Conclusion.Clinical improvements observed in golimumab-treated patients were sustained or improved in patients switched from IV (2–4 mg/kg ± MTX) to open-label SC (50 mg ± MTX) golimumab. Both IV and SC golimumab demonstrated acceptable safety profiles (Clinicaltrials.govNCT00361335).
L'adolescent d'aujourd'hui, l'évolution de la famille et l'actuel malaise dans la culture
Authors: Richard François 
Published: November 2011

Résumé « L’adolescent d’aujourd’hui, l’évolution de la famille et l’actuel malaise dans la culture. » Cet article propose une hypothèse originale concernant la place de l’adolescent dans la famille, en la contextualisant dans la situation actuelle d’un Malaise dans la culture à certains égards différent de celui dépeint par Freud en 1929 – caractérisée par une complicité entre les discours moralisateurs et l’inflation de la logique de la violence, ainsi que par une coalescence du Surmoi et de l’agressivité. L’accent est mis sur la spécificité d’une interpellation directe de la subjectivité de l’interlocuteur, des fonctionnements en processus primaires sans limites, du recours paradoxal à l’excitation comme désexualisante et de l’externalisation de l’intériorité psychique. À partir de là sont interrogées les évolutions actuelles de la famille : l’exemple des relations fusionnelles entre filles et mères, l’affaiblissement de la fonction paternelle mais aussi l’invention de nouvelles modalités de cette fonction.
L'adolescence et les générations
Authors: Robert Philippe , Houssier Florian 
Published: November 2011

Résumé « L’adolescence et les générations. » La crise adolescente nécessite un réaménagement psychique individuel et groupal. Ce passage réinterroge la perméabilité potentielle de la frontière générationnelle. Les auteurs essaient de montrer comment l’imbrication du courant sensuel et du courant tendre fait écho dans la crise et comment ce moment réinterroge le narcissisme individuel et familial à travers le sentiment d’appartenance.
Travailler psychanalytiquement à plusieurs et avec la famille en institution
Authors: Penot Bernard 
Published: November 2011

Résumé « Travailler psychanalytiquement à plusieurs et avec la famille en institution. » Il s’agit du récit succinct de la genèse du dispositif de travail analytique à plusieurs soignants adopté par l’hôpital de jour du Cerep-Montsouris à partir des années 1970. L’expérience de l’auteur en matière de psychodrame psychanalytique et de travail de synthèse en équipe a permis de comprendre les phénomènes de transferts diffractés sur plusieurs soignants autour de chaque adolescent. Cela a amené à considérer que les soignants directement impliqués sur ce mode étaient les mieux placés pour mener à bien le travail avec la famille.
Embryonal carcinoma in androgen insensitivity syndrome
Authors: Barmon Debabrata , Kataki Amal Chandra , Sharma J D , Hafizur Rahman 
Published: November 2011

AbstractEmbryonal cell carcinoma is a rare clinical entity. We report a case of a 20-year-old patient who presented with lump lower abdomen for last two months with primary amenorrhea and poorly developed secondary sexual characteristics. Ultrasonography (USG) whole abdomen showed lower abdominal mass approximately 15΄15΄10 cm, probably neoplastic changes in intra-abdominal testis, with mild ascites, no uterus and ovaries. Fine needle aspiration cytology from the tumor mass reported the possibility of non-seminomatous germ cell tumor, possibly embryonal carcinoma. The patient received three cycles of neo-adjuvant chemotherapy (Regime Bleomycin, Etoposide and Cisplatin) followed by laparotomy, at laparotomy (L) orchidectomy with removal of tumor, (R) orchidectomy, omentectomy and appendisectomy was performed. Postoperatively the patient received two more cycles of chemotherapy of the same regime. The patient has been under close follow-up for the last three years with no evidence of disease.
Metastatic adenocarcinoma in a young male, 12 years after treatment of primary non seminomatous germ cell tumor
Authors: Coca Pragnya , Gundeti Sadashivudu , Uppin Shantiveer , Digumarti Raghunadharao 
Published: November 2011

AbstractA man aged 32 years presented with metastatic adenocarcinomatous deposits, 12 years after his initial diagnosis and treatment of immature teratoma of the testis. He was treated for his metastasis with local radiotherapy, failing which he underwent excision of the tumor and palliative chemotherapy. This case is presented for its rarity of occurrence, unique presenting features and difficulty in management.
Primary extraosseous intracranial Ewing′s sarcoma: Case report and literature review
Authors: Choudhury Krishnangshu Bhanja , Sharma Shyam , Kothari Ramesh , Majumder Anjali 
Published: November 2011

AbstractEwing′s sarcoma / peripheral primitive neuroectodermal tumors occur most often in bone and soft tissues of children and young adults. The intracranial manifestation of the disease is rare, and when present, this is often misdiagnosed with other varieties of primary brain tumors. We report such a case of extraosseous Ewing′s sarcoma, which was initially suspected to be a case of meningioma in an 11-year-old girl.
The Initiative to extend Medicare into Mexico: a case study in changing U.S. Health Care Policy
Authors: Ibarra Roberto A. 
Published: November 2011

This study examines the geo-political activities of interest groups, governments and multinational corporations involved in an initiative to extend Medicare to U.S. retirees residing in Mexico. If the initiative to change the current Medicare policy succeeds, the relocation of Medicare-eligible populations from the U.S. to Mexico is likely to increase; the U.S. is expected to gain cost-savings for taxpayers on Medicare; Mexico can develop senior-housing and options for long-term care it currently lacks; and foreign-led multinational corporations will increase their profits and dominance, fostering even more privatization in Mexico’s health care sector. By exploring new issues about retirement migration and health this study seeks to gain knowledge about the phenomena in a number of areas. First, the retirement migration of North Americans to Latin America is an under-studied phenomenon in the fields of social gerontology, migration research, and health policy studies. Second, the Medicare in Mexico initiative is even less well-known among health policy scholars than the retirement migration phenomenon into Mexico. Yet this initiative is inherently international in scope and involves a number of US-based institutions and interest groups actively promoting the project from within Mexico. Thus, the initiative has important geo-political and socio-economic implications for reforming health care systems in the U.S. and Mexico.
In Situ Generation of Few‐Layer Graphene Coatings on SnO2‐SiC Core‐Shell Nanoparticles for High‐Performance Lithium‐Ion Storage
Authors: Chen Zhongxue , Zhou Min , Cao Yuliang , Ai Xinping , Yang Hanxi , Liu Jun 
Published: November 2011

AbstractA simple ball‐milling method is used to synthesize a tin oxide‐silicon carbide/few‐layer graphene core‐shell structure in which nanometer‐sized SnO2 particles are uniformly dispersed on a supporting SiC core and encapsulated with few‐layer graphene coatings by in situ mechanical peeling. The SnO2‐SiC/G nanocomposite material delivers a high reversible capacity of 810 mA h g−1 and 83% capacity retention over 150 charge/discharge cycles between 1.5 and 0.01 V at a rate of 0.1 A g−1. A high reversible capacity of 425 mA h g−1 also can be obtained at a rate of 2 A g−1. When discharged (Li extraction) to a higher potential at 3.0 V (vs. Li/Li+), the SnO2‐SiC/G nanocomposite material delivers a reversible capacity of 1451 mA h g−1 (based on the SnO2 mass), which corresponds to 97% of the expected theoretical capacity (1494 mA h g−1, 8.4 equivalent of lithium per SnO2), and exhibits good cyclability. This result suggests that the core‐shell nanostructure can achieve a completely reversible transformation from Li4.4Sn to SnO2 during discharging (i.e., Li extraction by dealloying and a reversible conversion reaction, generating 8.4 electrons). This suggests that simple mechanical milling can be a powerful approach to improve the stability of high‐performance electrode materials involving structural conversion and transformation.
Armenin and Isoarmenin – Two Prenylated Coumarins from the Aerial Parts of Artemisia armeniaca
Authors: Mojarrab Mahdi , Delazar Abbas , Moghadam Sadeighe Bamdad , Nazemiyeh Hossein , Nahar Lutfun , Kumarasamy Yashodharan , Asnaashari Solmaz , Hadjiakhoondi Abbas , Sarker Satyajit Dey 
Published: November 2011

AbstractThe reversed‐phase (RP) preparative HPLC analyses of the MeOH extract of the aerial parts of Artemisia armeniaca yielded four prenylated coumarins, 7‐hydroxy‐8‐(4‐hydroxy‐3‐methylbutoxy)coumarin (named armenin), 8‐hydroxy‐7‐(4‐hydroxy‐3‐methylbutoxy)coumarin (named isoarmenin), lacarol, and deoxylacarol, together with five other compounds, including three flavonoid glycosides, quercetin 3‐O‐β‐D‐glucopyranoside, rutin, and kaempferol 3‐O‐β‐D‐glucopyranoside, and chlorogenic acid, and tryptophan. (10E,12Z)‐9‐Hydroxyoctadeca‐10,12‐dienoic acid (β‐dimorphecolic acid) was isolated from the CH2Cl2 extract. Armenin and isoarmenin were new coumarins. Structures of all compounds were determined by spectroscopic means, including UV, MS, 1D‐ and 2D‐NMR. The in vitro free‐radical‐scavenging property of the extracts and isolated compounds was evaluated by the 1,1‐diphenyl‐2‐picrylhydrazyl (DPPH) assay.