bluuebunny/crossref_metadata_2025_split huggingface dataset:
Perrhenate and Pertechnetate Behavior on Iron and Sulfur-Bearing Compounds
Authors: Anderson B. Elizabeth , Becker U. , Helean K. B. , Ewing R. C. 
Published: October 2011

AbstractInvestigations on the behavior of the radioactive element technetium frequently use a stable isotope of rhenium as an analogue. This is justified by citing the elements' similar radii, major oxidation states of +7 and +4, and eH-pH diagrams. However, recent studies (e.g.,[1] have shown this analogy to be imperfect. Therefore, one goal of our study is to compare the behavior of these elements with emphasis on the adsorption of perrhenate and pertechnetate (the major forms of Re and Tc in natural waters) on mineral surfaces.Quantum mechanical calculations were performed on the adsorption of these two anions on relaxed clusters of the well-characterized sulfide galena (PbS) and some other Fe and S-bearing materials. With these calculations, we gain insight into differences between the anions' adsorption behavior, including geometry, adsorption energies, and electronic structure. Differences between interactions on terraces and step edges, the effects of co-adsorbates such as Na+ and Cl-, and chloride complexation are also explored. The influence of water was calculated using homogeneous dielectric fluids.As a complement to the calculations, batch sorption tests are in progress involving ReO4-/TcO4- solution in contact with Fe metal, 10% Fe-doped hydroxyapatite, goethite, hematite, magnetite, pyrite, galena, and sphalerite.
Coupling Hydrological and Geochemical Simulations to Assess Spatial Heterogeneity and Chemical Evolution of Groundwaters at Two Candidate Repository Sites in Sweden
Authors: Puigdomenech Ignasi , Gimeno María José , Gómez Javier B. , Puigdomenech Ignasi 
Published: October 2011

AbstractThe chemical composition of groundwater surrounding a high level radioactive waste re-pository is of importance to many factors that affect repository performance. The geochemical characteristics of Swedish groundwater systems are governed by successive mixing events be-tween several end-member waters during their paleogeographical evolution. An approach is pro-posed here to investigate the spatial and temporal evolution of groundwater geochemical condi-tions by coupling hydrogeological and geochemical models in a sequential way.The procedure combines hydrogeological results by others of a discrete fracture net-work using CONNECTFLOW with a mixing and reaction-path simulation using PHREEQC. The hydrological results contain mixing proportions of four reference waters (a deep brine, gla-cial meltwater, marine water, and meteoric infiltration) at each time step and at every node of the 3D model domain. In this work mixing fractions are fed into PHREEQC using software devel-oped to build formatted input files and to extract the information from output files for subsequent plotting and analysis. The geochemical calculations included both chemical mixing and equilib-rium reactions with selected minerals: calcite, chalcedony and an Fe(III) oxyhydroxide.Some results for the Forsmark site, about 170 km north of Stockholm, Sweden, are graphi-cally presented. Cross sections, where each node is color-coded with respect to an important variable (pH, Eh or concentrations of main elements), are used to visualize the future evolution of the site. Sensitivity analyses were made to evaluate the effects of the different reactions and/or assumptions. The proposed methodology has proved useful for evaluating the future geochemical evolution of the repository sites and to increase the confidence in the site descriptions.
Water, Vapor, and Salt Dynamics in a Hot Repository
Authors: Bahrami Davood , Danko George , Walton John 
Published: October 2011

AbstractThe purpose of this paper is to report the results of a new model study critically examining the high temperature nuclear waste disposal concept at Yucca Mountain using MULTIFLUX, an integrated in-drift- and mountain-scale thermal-hydrologic model. In addition to new results the paper summarizes results of a previous study. The results show that a large amount of vapor flow into the drift is expected during the period of above-boiling temperatures in the emplacement drift. This phenomenon makes the emplacement drift a water/moisture attractor for thousands of years during the above-boiling temperature operation.The evaporation of the percolation water into the drift gives rise to salt accumulation in the rock wall, especially in the crown of the drift for about 1500 years in the example. The deposited salts over the drift footprint, almost entirely present in the fractures, may enter the drift either by rock fall or by water drippage. During the high temperature operation mode the barometric pressure variation creates fluctuating relative humidity in the emplacement drift with a time period of approximately 10 days. Potentially wet and dry conditions and condensation on the surfaces over salt-laden drift wall sections are unfavorable to the storage environment. Corrosive salt accumulation during the above-boiling temperature operation must be sufficiently addressed to fully understand the waste package environment during the thermal period. Until the questions are resolved, a below-boiling repository design is favored where the Alloy-22 will be less susceptible to localized corrosion.
Specialized Disposal Sites for Different Reprocessing Plant Wastes
Authors: Forsberg Charles W. , Driscoll Michael J. 
Published: October 2011

AbstractOnce-through fuel cycles directly dispose of one primary waste form: spent nuclear fuel (SNF). In contrast, the reprocessed SNF yields multiple waste streams with different chemical, physical, and radionuclide characteristics. These different characteristics of each waste stream imply that there are potential cost and performance benefits to developing different disposal sites that best match the disposal requirements of each waste stream. Disposal sites as defined herein may be located in different geologies or in a single repository containing multiple sections, each with different design characteristics. The paper describes the results of a series of studies on disposal options for specific wastes and the potential for a waste management system that better couples various reprocessing plant wastes with disposal facilities.
Paraffin Wax Deposition: Mitigation & Removal Techniques
Authors: Al-Yaari Mohammed 
Published: October 2011

Abstract
Flow assurance is critical and difficult for deepwater pipeline since the seawater temperature, surrounding pipeline, is usually much colder than the surface air temperature. In the deepwater, the fluid heat can be quickly lost to the water if there is no thermal insulation layer surrounding the pipe wall. When the inner wall temperature falls below the crude oil cloud point temperature, wax deposition occurs. Such problem starts when paraffin components in crude oil precipitate and deposit on the cold pipeline wall. Whereas wax precipitation during oil flow results in wax deposition and flow restriction, wax precipitation during a production shutdown results in problems when attempting to restart the flow.
In this review, wax deposition problem in flow and during the shut-in conditions are discussed. Also, proposed wax deposition physics and mechanisms are outlined. Furthermore, different wax deposition mitigation techniques are explained. These techniques include: Cold Flow, Chemical Additives and Different Pipes and Coatings Techniques. In addition, different wax deposition removal techniques are reviewed. These techniques include: Fused Chemical Reaction, Mechanical Techniques, Heat Application, Chemical Additives, Magnetic Fluid Conditioning (MFC) technology and Use of Microbial Products.
Artificial Intelligence Application in Reservoir Characterization and Modeling: Whitening the Black Box
Authors: Anifowose Fatai Adesina 
Published: October 2011

AbstractThere are two schools of thought on the application of Artificial Intelligence (AI) techniques in reservoir characterization and modeling. The first school considers AI as a step forward in the future of reservoir characterization and modeling in line with the increased advancement in technology. The other school argues that AI techniques are "black boxes" with vague architectures, whose concepts do not follow fundamental petroleum engineering principles.This paper presents AI as a "white box", highlighting its basic concepts, revealing the architectural composition of some of its techniques, and showcasing examples of its successful applications in various reservoir characterization and modeling tasks. AI techniques are used in the prediction of oil and gas reservoir properties such as porosity, permeability, water saturation, well-bore stability and identification of lithofacies. The recent developments in the hybridization and "ensemblage" of some AI techniques are also discussed.The outcome of this paper will provide a better understanding of the basic concepts of AI and offer a strong background for further study of AI techniques. Overall, it will provide an appraisal of the successful applications of AI in petroleum engineering and increase the necessary synergy required for a multi-disciplinary collaboration among petroleum engineers, computer scientists and mathematicians; and to ensure the delivery of the future AI-driven/AI-assisted reservoir models for better exploration, production and management of petroleum resources.
Être, penser, créer : quand la guerre attaque le cadre et que le transfert contre-attaque
Authors: Khair Badawi Marie-Thérèse 
Published: October 2011

Résumé Quand le traumatisme est dans la réalité de l’analyste et de l’analysant, qu’il attaque le cadre, que devient le rôle de l’analyste ? Comment transformer ? À travers trois situations cliniques, l’auteure essaye de montrer de quelle manière l’articulation transféro-contre-transférentielle – l’interrelation – va organiser la situation, si l’analyste demeure analyste, en arrivant à créer et penser sa clinique face à l’imprédictible d’une situation que la guerre impose. On verra ainsi comment il peut maintenir le travail du négatif à la périphérie de son cadre.
Mort d'âme dans contexte social et/ou professionnel
Authors: Pirlot Gérard 
Published: October 2011

Résumé S’interroger sur les liens entre l’intrapsychique et l’environnement social relève, chez le psychanalyste, de sa sensibilité, de son histoire, de son expérience sociale et professionnelle précédant et accompagnant celle de son exercice analytique. Après avoir rappelé les liens entre l’anthropologie sociale de S. Freud et les descriptions du narcissisme postmoderne actuel, la friabilité de la fonction symbolique et la nébuleuse émotionnelle qui ne sont pas sans envahir le cadre psychanalytique, l’auteur propose une vignette clinique dans laquelle la souffrance au travail de son patient relevait également pour lui de défenses inconscientes. Cette souffrance professionnelle fit peser un sentiment contre-transférentiel durable d’impuissance, ceci jusqu’à un moment mutatif du processus analytique. Celui-ci permit alors de comprendre que, dans le « baquet » analytique, les processus psychiques se découvrent toutefois comme irréductibles aux éléments sociaux et professionnels avec lesquels ils avaient jusque-là été tissés.
Pratique analytique d'un psychisme d'équipe pour adolescents
Authors: Kebir Abdel-Karim 
Published: October 2011

Résumé Comment qualifier l’action d’un psychanalyste au sein d’un centre médico-psychologique pour adolescents ? Au sein d’une équipe pluridisciplinaire, la confrontation collective au psychisme adolescent pris dans ses turbulences environnementales est mise en jeu groupale de forces psychiques complexes relevant spécifiquement d’un travail analytique, capacité de travail contre-transférentiel étendue au groupe soignant qui peut faire parler d’un psychisme d’équipe. À partir des enjeux d’adolescence, des attentes de société à cet égard et de leurs évolutions, notamment pour les adolescences dites difficiles, cette notion est explorée comme support possible d’une pratique analytique ; une illustration clinique en montre le potentiel thérapeutique.
La tour de Babel. Émergence d'une approche psychanalytique de groupe avec des réfugiés
Authors: Welsh Geneviève 
Published: October 2011

Résumé Un groupe de réfugiés du Sud-Est Asiatique suivis en psychiatrie, peu mobilisés par le travail individuel. Au départ groupe à médiation culturelle, il se réanime et évolue d’une position maniaque à une ébauche de partage de deuils, peut-être à la faveur d’un processus de psychanalyse de groupe naissant ?
Work-in-Progress on a Thin IEEE1451.0-Architecture to Implement Reconfigurable Weblab Infrastructures
Authors: Costa Ricardo Jorge Guedes Silva Nunes , Alves Gustavo Ribeiro Costa , Rela Mário Zenha 
Published: October 2011

Institutions have been creating their own specific
weblab infrastructures. Usually, they use distinct software and
hardware architectures comprehending instruments and
modules (I&M) able to be parameterized but difficult to be
shared. These aspects are impairing their widespread in
education, since collaboration between institutions, in
developing and sharing resources, is still low. To handle both
aspects, this paper proposes the adoption of the IEEE1451.0 Std.
with FPGA technology for creating reconfigurable weblab
infrastructures. It is suggested the adoption of an IEEE1451.0
infrastructure with compatible instruments, described in
Hardware Description Languages (HDL), to be reconfigured in
FPGA-based boards. Besides an overview of the IEEE1451.0
Std., this paper presents a solution currently under development
which seeks to enable the reconfiguration and the remote control
of weblab infrastructures using a set of IEEE1451.0 HTTP
commands.
Tumor Stress Inside Out: Cell-Extrinsic Effects of the Unfolded Protein Response in Tumor Cells Modulate the Immunological Landscape of the Tumor Microenvironment
Authors: Mahadevan Navin R. , Zanetti Maurizio 
Published: October 2011

Abstract
The unfolded protein response (UPR) is a eukaryotic cellular adaptive mechanism that functions to cope with stress of the endoplasmic reticulum (ER). Accumulating evidence demonstrates that the tumor microenvironment contains stressors that elicit a UPR, which has been demonstrated to be a cell-intrinsic mechanism crucial for tumorigenesis. In addition, the UPR is a source of proinflammatory signaling whose downstream mediators may hamper antitumor immunity. We discuss how the UPR may impair Ag presentation, which could result in defective T cell priming, also leading to tumor escape and growth. Further, we discuss the recent finding that ER stress and attendant proinflammation can be transmitted from ER-stressed tumor cells to myeloid cells. The ideas presented suggest that, in addition to being a cell-intrinsic mechanism of tumor survival, the tumor UPR can serve as a cell-extrinsic regulator of tumorigenesis by remodeling the immune response in the tumor microenvironment.
Early Mitoxantrone-Induced Cardiotoxicity Detected in Secondary Progressive Multiple Sclerosis
Authors: Namaka M.P. , Turcotte D.A. , Klowak M. , Leong C.M. , Grossberndt A. , Le Dorze J-A. , Prout M.E. , Andresen S. , Vuong L. , Melanson M.J. , Frost E.E. , Doupe M. 
Published: October 2011

Background and purpose Mitoxantrone (MX) (Novantrone®) is approved in Canada for certain refractory cancers and acute non-lymphocytic leukemias. It has FDA approval as an immunomodulatory agent for use in secondary progressive multiple sclerosis (SPMS). The general aim of this study is to evaluate the efficacy, safety, and tolerability of MX in SPMS. Experimental approach A single-centre, open-label, non-randomized study was conducted in patients with a ≥6 month history of SPMS. The primary parameters used to assess efficacy and safety were EDSS scores and the multiple-gated acquisition scan (MUGA) scores, respectively. Key results The MX-treatment group experienced a high dropout rate due to significantly reduced ventricular ejection fraction. EDSS scores from baseline to follow-up revealed no statistical difference between active control and MX-treatment groups. Conclusion: MX treatment may not slow disease progression in certain forms of SPMS and may be associated with a high risk of cardiotoxicity.
An Evaluation of the Usability of a Computerized Decision Support System for Nursing Homes
Authors: Ehnfors M. , Fruhling A. , Ehrenberg A. , Fossum M. 
Published: October 2011

SummaryBackground: Computerized decision support systems (CDSSs) have the potential to significantly improve the quality of nursing care of older people by enhancing the decision making of nursing personnel. Despite this potential, health care organizations have been slow to incorporate CDSSs into nursing home practices.Objective: This study describes facilitators and barriers that impact the ability of nursing personnel to effectively use a clinical CDSS for planning and treating pressure ulcers (PUs) and malnutrition and for following the suggested risk assessment guidelines for the care of nursing home residents.Methods: We employed a qualitative descriptive design using varied methods, including structured group interviews, cognitive walkthrough observations and a graphical user interface (GUI) usability evaluation. Group interviews were conducted with 25 nursing personnel from four nursing homes in southern Norway. Five nursing personnel participated in cognitive walkthrough observations and the GUI usability evaluation. Text transcripts were analyzed using qualitative content analysis.Results: Group interview participants reported that ease of use, usefulness and a supportive work environment were key facilitators of CDSS use. The barriers identified were lack of training, resistance to using computers and limited integration of the CDSS with the facility’s electronic health record (EHR) system. Key findings from the usability evaluation also identified the difficulty of using the CDSS within the EHR and the poorly designed GUI integration as barriers.Conclusion: Overall, we found disconnect between two types of nursing personnel. Those who were comfortable with computer technology reported positive feedback about the CDSS, while others expressed resistance to using the CDSS for various reasons. This study revealed that organizations must invest more resources in educating nursing personnel on the seriousness of PUs and poor nutrition in the elderly, providing specialized CDSS training and ensuring that nursing personnel have time in the workday to use the CDSS.
The Value of Duplex Ultrasound in the Prediction of Brachial Dialysis Access Induced Ischemia Syndrome (DAIIS)
Authors: Thermann Florian , Junge Udo 
Published: October 2011

Purpose Dialysis access induced ischemia syndrome (DAIIS) is a serious complication of Vascular Access (VA) surgery. It mainly occurs in brachial VA. The aim of this prospective study was to ascertain whether early detection of DAIIS following brachial VA is possible, enabling immediate therapy. Materials and Methods One hundred and three patients undergoing brachial VA-surgery were surveyed. Duplex ultrasound was performed before and directly after surgery and the flow amplitudes of the distal ulnar and radial arteries were measured. Clinical follow up was performed after two months. In addition, specific patient characteristics were assessed. Results Sixteen patients (15.5%) developed DAIIS with the need for surgical intervention. Statistical analysis revealed a statistically significant correlation between post-operative flow amplitudes of the distal arteries measured by duplex ultrasound and the development of DAIIS. Conclusions According to our data, measurement of the flow-amplitudes of distal arteries by duplex ultrasound shortly after surgery predicts the development of DAIIS. This makes immediate therapy possible. We recommend early post-operative duplex-ultrasound investigation following the creation of a brachial VA.
Transportation Relationships in the Supply Chain: Questioning Extant Theories and Methods
Authors: Golicic Susan L. , Mentzer John T. 
Published: October 2011

AbstractCollaborative relationships in the supply chain have been researched in various literatures for decades. This research has drawn on and created numerous constructs and theories describing different relationships, their antecedents and outcomes. Inconsistencies still exist in the phenomena that connect the various constructs as well as how these connections are viewed by the buyer and supplier. The purpose of the current research is to examine these connections using a relationship common to every supply chain—a transportation relationship—thus beginning a discourse on the future of interfirm relationship theories and methods to create and test them. Through a model built using extant theory and a survey of shippers and motor carriers, study results exemplify the potential for clarification that exists in this important area of research faces. Implications for transportation practice and relationship theory as well as opportunities for future research are discussed.
Long‐Term Orientation of International Road Transport Firms in Their Relationship with Shipping Companies: The Case of Short Sea Shipping
Authors: López‐Navarro Miguel Ángel , Moliner‐Tena Miguel Ángel , Rodríguez‐Artola Rosa María 
Published: October 2011

AbstractThe use of short sea shipping by international road transport firms and their transformation into multimodal logistical operators involves substantial adjustments to the operational model these firms have traditionally used. For this reason, their long‐term involvement with this mode of transport will be conditioned by their expectations concerning the future opportunistic behaviors of their new suppliers, the shipping companies. According to transaction cost analysis, this article argues that a road transport firm’s level of uncertainty about the future behavior of a shipping company can be reduced by two main factors: the shipping company’s reputation and the road transport firm’s trust (in this study we distinguish the two dimensions or motives of trust: honesty and benevolence). Using the partial least squares (PLS) approach, and data from a sample of 106 “road transport firm–shipping company” relationships, we estimated a model to analyze the joint effect of trust and reputation dimensions on the long‐term orientation of international road transport firms in their relationships with shipping companies.
Evaluating Transportation Research Journal Quality Using the Author Affiliation Index
Authors: Gorman Michael F. , Kanet John J. , Christ Dominique 
Published: October 2011

AbstractPrevious research by Gorman and Kanet (2011) reports survey responses on transportation‐related research journal quality. In addition to ranking research journal quality, respondents in that survey also provided their opinions regarding the quality of research institutions around the world. We evaluate the consistency of these two responses with the Author Affiliation Index (AAI), which evaluates journal quality by measuring the percentage of authors coming from top research institutions. We find that the AAI produces a journal ranking that is highly correlated with our opinion survey; that is, the best‐rated research institutions publish more frequently in the bestrated journals. Based on these observations, we suggest the AAI is a low‐cost alternative to opinion surveys and other means of journal quality evaluation.