bluuebunny/crossref_metadata_2025_split huggingface dataset:
Bioelectrical impedance vector analysis in critically ill patients: a prospective, clinician-blinded investigation
Authors: Jones Sarah L. , Tanaka Aiko , Eastwood Glenn M. , Young Helen , Peck Leah , Bellomo Rinaldo , Mårtensson Johan 
Published: August 2015

Abstract
Introduction
Assessment of fluid status in critically ill patients is challenging. We aimed to assess the feasibility and validity of bioelectrical impedance vector analysis (BIVA) as a measure of hydration in critically ill patients.

Methods
We performed twice-daily BIVA measurements and fluid balance calculations and recorded physiological variables in mechanically ventilated patients within 24 h of intensive care unit (ICU) admission for up to 5 days. Treating clinicians were blinded to BIVA results.

Results
We performed 344 BIVA measurements in 61 patients. According to BIVA, 14 patients (23 %) were dehydrated, 22 (36 %) were normally hydrated and 25 (41 %) were overhydrated upon ICU admission. Patients with normal BIVA hydration were less sick, had fewer comorbidities and had less deranged physiology than patients found to be dehydrated or overhydrated with BIVA. Cumulative fluid balance increased in patients found to be dehydrated with BIVA by a mean of 3.4±2.2 L, whereas in patients found to be overhydrated with BIVA, it decreased by a mean of 4.5±6.9 L. In patients found to be normally hydrated with BIVA, fluid balance remained unchanged. BIVA-defined hydration increased with 1 L (median change 1.5 %, P =0.09) or 2 L (median change 0.7 %, P =0.09) of calculated fluid gains. BIVA-defined hydration decreased (median change −0.8 %, P =0.02) with a negative cumulative fluid balance of >2 L. BIVA-defined hydration between first and last measurement correlated with the corresponding change in fluid balance (ρ =0.25, P =0.05).

Conclusions
BIVA is feasible in critically ill patients. Its validity is supported by the observed characteristics of patients with different degrees of BIVA hydration upon admission and by different fluid management of such patients by blinded clinicians. The sensitivity of repeated BIVA hydration measurements to detect fluid accumulation or fluid balance changes <2 L was low, however. These contradictory findings provide the rational basis for studies of BIVA-assisted fluid management in ICU patients.
Esthetic Management of a Recurrent Peripheral Ossifying Fibroma
Authors: Hutton Stephen B. , Haveman Kevin W. , Wilson John H. , Gonzalez‐Torres Karen E. 
Published: August 2015

Introduction: A peripheral ossifying fibroma (POF) presents similarly to other soft tissue reactive lesions, such as pyogenic granuloma or peripheral giant cell granuloma, and yet the pathogenesis of POFs remains undetermined. Surgical excision is the standard of care for a POF, but given their propensity to present in the esthetic area and likelihood for recurrence, these lesions must be addressed with careful technique to prevent mucogingival defects. To the best of the authors’ knowledge, this is the first report to show that complete excision of a recurrent POF followed by a pouch recipient bed preparation for simultaneous soft tissue augmentation, and this technique may prove to be a novel and predictable approach to successfully treat such cases.Case Presentation: A 57‐year‐old female presented with a firm, sessile, painless, broad‐based, gingival mass between the maxillary central and lateral incisors. It was excised conservatively and allowed to heal by secondary intention. A histopathologic diagnosis of POF was made, but after 12 months, the mass recurred. Subsequent excision of the recurrent lesion was performed by removing the free gingival margin and surrounding tissues. All gingival and periosteal tissues involved were removed aggressively in addition to thorough root planing. Peripheral undermining of the marginal tissue was performed to create a pouch, preparing a recipient site for simultaneous soft tissue augmentation. Palatal connective tissue was harvested and sutured into the recipient site such that the tissue defect was filled, and the exposed root remained completely covered after 48 months.Conclusion: Aggressive surgical excision with simultaneous soft tissue augmentation may successfully resolve the pathologic process and ensure esthetic success in cases of recurrent POFs.
Diagnosis and Clinical Management of Human Papilloma Virus–Related Gingival Squamous Cell Carcinoma in a Patient With Leukemia: A Case Report
Authors: Yassin Alaa , Dixon Douglas R. , Oda Dolphine , London Robert M. 
Published: August 2015

Introduction: Close clinical inspection for intraoral lesions in patients with leukemia that develop chronic graft‐versus‐host disease (cGVHD) is critical. Additionally, neoplasias developing in bone marrow transplant patients after treatment for leukemia represent a significant obstacle for long‐term patient survival, necessitating lifetime follow‐up by health care providers. This case report describes the identification, diagnosis, and treatment of gingival squamous cell carcinoma (SCC) in a patient with leukemia who was treated previously with a stem cell transplant and referred for routine periodontal care.Case Presentation: A 53‐year‐old male was referred to the Department of Periodontics for an assessment of tooth #10 with 2+ mobility and associated cross‐bite occlusion. The patient was diagnosed with acute myeloid leukemia at age 39 years, received hematopoietic stem cell transplantation (HSCT), and later developed cGVHD followed by human papilloma virus (HPV) infections. During the periodontal evaluation, a large, non‐painful, exophytic, alveolar gingival mass was identified and later diagnosed as SCC. It is unusual that oral SCC presents as an exophytic, gingival swelling. The patient received comprehensive periodontal management in coordination with his otolaryngology team before and during the diagnosis of SCC secondary to cGVHD and HPV infection.Conclusions: Patients with a history of HSCT treatment for leukemia and subsequent cGVHD are at a high risk of developing second primary oral malignancies, including SCC. Exposure to oncogenic HPV infection may compound this risk. Therefore, it is important for dentists to be aware of special treatment concerns and to frequently screen these patients to achieve early diagnosis and treatment of these neoplasms.
Hierarchical Multiscale Methods for Life-Cycle-Production Optimization: A Field Case Study
Authors: Oliveira D. F. , Reynolds A. C. 
Published: August 2015

SummaryWe apply hierarchical multiscale techniques previously developed by the authors to estimate the well controls that maximize the net present value of the long-term production from a real field offshore Brazil. This field has been in production for several years, and it represents a significant share of the overall oil production for the country.The production-optimization step is preceded by a 10-year historical period, where seismic and production data were history matched by use of ensemble-based approaches. The well controls on a sequence of control steps (time intervals) are optimized for the next 10 years of production by use of the hierarchical-multiscale-optimization and the refinement-indicator-based hierarchical-multiscale-optimization techniques, which refine the control steps as the optimization proceeds. The performance of our approaches is compared with that of a reference case, which applies the well rates used to forecast the production of the real field, as well as with the performance of a standard optimization procedure that uses a fixed set of well controls and a simple procedure to refine control steps.
Optimal Decline Curve Analysis (DCA) Models for Liquid Rich Shale (LRS) Gas Condensate Reservoirs
Authors: Khanal A.. , Khoshghadam M.. , Lee W. J. 
Published: August 2015

Abstract
Arps' decline model was developed for the boundary dominated flow (BDF) regime that is reached quickly in conventional reservoirs. Without modification, the Arps model does not work well for unconventional reservoirs with long-duration transient flow and variable bottom-hole pressure. This paper presents results of a study of different decline models that are used to forecast production in LRS reservoirs with long-duration transient flow.
The study used synthetic future production data generated using reservoir parameters typical of those observed in practice. In traditional DCA, a single curve is fitted to the entire production data without using the historical pressure data. However, the first step in reliable DCA is to identify the different flow regimes using appropriate diagnostic plots and then fitting different flow regimes with different models. This procedure allows us to forecast future production using appropriate decline models.
The results from the study show that log-log pressure-normalized vs. time diagnostic plots correctly identify flow regimes in low permeability LRS plays. Pressure normalization removes the confounding effects of multiphase flow and variable pressure and allows us to predict the time at which we need to switch from transient to boundary-dominated-flow (BDF) DCA models. Pressure normalization can be used on rate restricted wells which would otherwise be not possible using only rate data. Hybrid models, in which early transient linear flow is fitted by models like Duong, or SEPD, followed by the Arps' decline model during BDF, were significantly more accurate than single-flow-regime models. The results from the study also showed that there is a long transition period between early transient linear flow to BDF due to the onset of multiphase flow. Each flow regime, including the transition flow regime, was modeled by calculating appropriate model parameters from available rate-pressure-time data. Hybrid models forecasted the gas EUR accurately. Condensate production was also estimated by using a method proposed by Yu which led to accurate forecasts for lean gas condensate samples.
LRS gas condensate reservoirs have fundamentally different flow behavior than traditional black oil/dry gas reservoirs, and we cannot forecast rates using traditional decline curve analysis without modification. We can use diagnostic plots to select appropriate decline curve methodology based on the type of reservoir fluid.
Dynamic Modeling of Hydraulic Fractures Using Multisegment Wells
Authors: Du Song , Yoshida Nozomu , Liang Baosheng , Chen Jianping 
Published: August 2015

Abstract
Hydraulic fracturing is a stimulation treatment routinely performed to create fracture network on low permeability reservoirs to enhance the productivity. Such induced fracture network has much higher conductivity and generally is treated through either local grid refinement (LGR) to capture the transient phenomenon or embedded discrete fracture model (EDFM). Both approaches require complex gridding meshes, leading to heavy computational time. LGR also requires the orthogonal orientation of hydraulic fracture with horizontal wellbore trajectory. Another challenge for LGR and EDFM comes from the dynamic meshing over the time, embedded from the request of infill drilling and re-fracturing due to the nature of the fast production decline in those hydraulically fractured wells. In the case of infill drilling or re-fracturing, the grids for the well or completion stages have to be generated from the beginning of simulation, causing computational inefficiency. In addition, sensitivity evaluation of well landing point, spacing and completion optimization needs easy preprocessing of model input and quick simulation time.
In this paper, we handled the above challenges through representing hydraulic fracture network with multisegment well (MSW) concept, offering an improved description of the wellbore physics over the conventional well modeling. Since MSW node system is independent upon reservoir grid system, fracture orientation can be at any angle freely with wellbore trajectory, which avoids the complex LGR or EDFM and reduces the number of grids. Meanwhile, MSW provides a flexibility of fracture geometry representation, enabling easy addition and alteration of fractures at any simulation time. We developed a user-friendly interface to process all the grid generation and seamlessly feed into reservoir simulator. We also linked the interface to our in-house uncertainty and optimization package to perform experimental design and automatically submit all the necessary simulations and statistically analyze the simulation results based on EUR and NPV objective functions.
Our MSW approach has been validated by comparing with the LGR through several benchmarking studies of a tight reservoir. A field case was demonstrated for infill drilling among existing vertical wells and re-fracturing operations. While the infill drilling of a well with hydraulic fractures is difficult by the other modeling approach, the MSW option makes it easy by just opening the wellbore with fractures at certain simulation time. The re-fracturing operation is modeled as the opening of the completion. These settings can be done for each well. Our approach also has potential to dynamically couple with stimulation design tools.
Linearized analysis of X-ray stress measurement using the Debye–Scherrer ring
Authors: Miyazaki Toshiyuki , Sasaki Toshihiko 
Published: August 2015

Abstract
A linearized analysis of the Debye–Scherrer ring (D–S ring) is proposed in this paper. In our previous works, the authors reported on a technique to calculate stress from the Fourier series of the normal strain of a D–S ring and demonstrated a technique to calculate stress from an imperfect D–S ring. In fact, the same equation can be deduced by linearizing the equation for the D–S ring. We analyzed the data from our previous work to demonstrate this technique. In addition, we propose a data selection technique that uses the distance between the measured data and the hyperplane.
Integrable Systems and Torelli Theorems for the Moduli Spaces of Parabolic Bundles and Parabolic Higgs Bundles
Authors: Biswas Indranil , Gómez Tomás L. , Logares Marina 
Published: August 2015

AbstractWe prove a Torelli theorem for the moduli space of semistable parabolic Higgs bundles over a smooth complex projective algebraic curve under the assumption that the parabolic weight
systemis generic. When the genus is at least two, using this result we also prove a Torelli theoremfor the moduli space of semistable parabolic bundles of rank at least two with generic parabolic weights.
The key input in the proofs is a method of J.C. Hurtubise.
Digitale identificatie
Authors: Zwanikken G.G. 
Published: August 2015

Digitale identificatie. Reactie op ‘De overheid als verschaffer en beschermer van digitale identiteiten’
Het toerekenen van rechtshandelingen blijkt uit de ondertekening. Voor de opkomst van de digitale werkelijkheid was een handtekening ‘de ouderwetse krabbel op een stuk papier’. Digitaal is die natte handtekening niet mogelijk; een scan, kopie of faxafdruk van een natte handtekening is geen echte handtekening en fraudegevoelig. Richting overheid wordt de digitale authenticiteit thans gewaarborgd door DigiD. DigiD is helaas zo lek als een mandje. De overheid werkt zelf de identiteitsfraude in de hand. Nederland loopt achter in het verschaffen van een digitale identiteit aan zijn burgers. De oplossing is de elektronische identiteitskaart in te voeren. Met een blik naar de Belgische regelgeving lijkt het een klusje van niks. De Belgische wetgeving is luid en duidelijk, is opgesteld in de Nederlandse taal en is mede gebaseerd op meer dan tien jaar ervaring met die elektronische identiteitskaart. Onder de noemer ‘beter goed gejat dan slecht verzonnen’ behoeft slechts artikel 3 van de Paspoortuitvoeringsregeling Nederland 2001 te worden aangevuld met de bepalingen zoals geregeld in België. Het kabinet dient de elektronische identiteitskaart in te voeren.
Bemiddeling bij Belgische class actions
Authors: Taeymans Marc 
Published: August 2015

Mediation in Belgian class actions
The author discusses the details of the new Belgian statute on class actions. An intriguing part of the new legislation is that friendly negotiations between the disputing parties are strongly encouraged, yet the intervention of a professional mediator is wholly absent from the law. This is surprising, as the author emphasizes, in view of the procedural safeguards that mediation entails, safeguards that could also be of use in mass litigation.
The path from ‘calculating the cost of conflicts’ towards ‘cooperation controlling’
Authors: Hauska Elvira , Exenberger Berndt 
Published: August 2015

The path from ‘calculating the cost of conflicts’ towards ‘cooperation controlling’
In this contribution the author(s) contend that controlling cooperation is a better appraoch to succesfully meet the mediation paradox (discussed a.o. by De Palo et al. in the European Parliament Rebooting study) and the conflict management paradox, than merely calculating the costs of conflicts. The author(s) discuss the phenomenon of denial gap, and summarize some of the results they achieved with their team spirit barometer in surveys among Austrian managers during the past few years.
Dynamics of thermally induced ice streams simulated with a higher‐order flow model
Authors: Brinkerhoff D. J. , Johnson J. V. 
Published: August 2015

AbstractWe use a new discretization technique to solve the higher‐order thermomechanically coupled equations of glacier evolution. We find that under radially symmetric continuum equations, small perturbations in symmetry due to the discretization are sufficient to produce the initiation of nonsymmetric thermomechanical instabilities which we interpret as ice streams, in good agreement with previous studieswhich have indicated a similar instability. We find that the inclusion of membrane stresses regularizes the size of predicted streams, eliminating the ill‐posedness evident in previous investigations of ice stream generation through thermomechanical instability. Ice streams exhibit strongly irregular periodicity which is influenced by neighboring ice streams and the synoptic state of the ice stream. Ice streams are not always the same size but instead appear to follow a temperature‐dependent distribution of widths that is robust to grid refinement. The morphology of the predicted ice streams corresponds reasonably well to extant ice streams in physically similar environments.
Best Practice Recommendations Still Fail to Result in Action: A National 10‐Year Follow‐up Study of Investigative Interviews in CSA Cases
Authors: Johnson Miriam , Magnussen Svein , Thoresen Christian , Lønnum Kyrre , Burrell Lisa Victoria , Melinder Annika 
Published: August 2015

SummaryThe present study examined a national sample of Norwegian investigative interviews in alleged child sexual abuse cases (N = 224) across a 10‐year period (2002–2012), in order to decide whether practice had improved over the decade in terms of the types of questions asked. The results indicate that the frequency of open‐ended, directive, option‐posing, and suggestive questions asked was unchanged during the 10‐year period, but that the frequency of repeated questions had increased significantly. When analyzed together with the results from a previous study of interview practice covering the period of 1990–2002, long‐term trends were found to be similarly stable, with no change in the frequency of open‐ended and suggestive questions asked over a 22‐year perspective. However, a decreasing frequency of option‐posing questions observed accompanied by an increasing frequency of directive questions may be considered a positive trend. Copyright © 2015 John Wiley & Sons, Ltd.
Facile synthesis of functional copolymers with pendant vinyl groups by using asymmetrical divinyl monomers
Authors: Yang Hongjun , Bai Tao , Xue Xiaoqiang , Huang Wenyan , Chen Jianhai , Qian Xiaolei , Jiang Bibiao 
Published: August 2015

ABSTRACTPolymers bearing pendant vinyl groups have attracted significant attraction because they can be further modified for required applications, but their syntheses are still a big challenge. Herein, allyl methacrylate was catalyzed using a phosphazene base to homopolymerize or copolymerize with 2‐(N, N‐dimethylamino) ethyl methacrylate, affording vinyl functional polymers, which were further successfully tailored by the thiol–ene coupling reaction. The result showed that both the homopolymerizations and copolymerizations could proceed at room temperature with very high monomer conversions. The contents of pendant double bonds in the copolymers were approximately equal to the monomer feeds, but the LCST of the statistical copolymers linearly decreased with increasing AMA content. This strategy offered a new scalable and facile strategy for vinyl functional polymers, would have a wide practical application in many fields. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42758.
Scalable Preparation of LiFePO4/C Nanocomposites with sp2‐Coordinated Carbon Coating as High‐Performance Cathode Materials for Lithium‐Ion Batteries
Authors: Kretschmer Katja , Sun Bing , Su Dawei , Zhao Yufei , Wang Guoxiu 
Published: August 2015

AbstractWe hereby report carbon‐coated LiFePO4 cathode materials prepared by industrial ball milling and a solid‐state reaction with Li2CO3, NH4H2PO4, and FeC2O4⋅2 H2O as starting materials. Soluble starch as the primary carbon source was investigated for its capability of generating a highly graphitic carbon coating, whilst sufficiently controlling the crystal growth of LiFePO4. XRD analysis, Raman spectroscopy, and electrochemical testing revealed the significant impact of the amount of starch added to the pre‐sintered precursor on phase purity, carbon quality, and electrochemical performance of the final LiFePO4/C composite. The optimum soluble starch content to achieve a highly sp2‐coordinated carbon coating is 10 wt %, which enabled our LiFePO4/C composite to achieve competitive reversible capacities as well as improved rate performance.
4,5‐Dihydro‐1,2,3‐oxadiazole: A Very Elusive Key Intermediate in Various Important Chemical Transformations
Authors: Banert Klaus , Singh Neeraj , Fiedler Benjamin , Friedrich Joachim , Korb Marcus , Lang Heinrich 
Published: August 2015

Abstract4,5‐Dihydro‐1,2,3‐oxadiazoles are postulated to be key intermediates in the industrial synthesis of ketones from alkenes, in the alkylation of DNA in vivo, and in the decomposition of N‐nitrosoureas; they are also a subject of great interest for theoretical chemists. In the presented report, the formation of 4,5‐dihydro‐1,2,3‐oxadiazole and the subsequent decay into secondary products have been studied by NMR monitoring analysis. The elusive properties evading characterization have now been confirmed by 1H, 13C, and 15N NMR spectroscopy, and relevant 2D experiments at very low temperatures. Our experiments with suitably substituted N‐nitrosoureas using thallium(I) alkoxides as bases under apolar conditions answer important questions on the existence and the secondary products of 4,5‐dihydro‐1,2,3‐oxadiazole.