bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pathological motivations for exercise and eating disorder specific health‐related quality of life
Authors: Cook Brian , Engel Scott , Crosby Ross , Hausenblas Heather , Wonderlich Stephen , Mitchell James 
Published: October 2013

ABSTRACTObjectiveTo examine associations among pathological motivations for exercise with eating disorder (ED) specific health‐related quality of life (HRQOL).MethodSurvey data assessing ED severity (i.e., Eating Disorder Diagnostic Survey), ED specific HRQOL (i.e., Eating Disorders Quality of Life Instrument), and pathological motivations for exercise (i.e., Exercise Dependence Scale) were collected from female students (N = 387) at seven universities throughout the United States. Regression analyses were conducted to examine the associations among exercise dependence, ED‐specific HRQOL and ED severity, and the interaction of exercise dependence and ED severity on HRQOL scores.ResultsThe overall model examining the impact of ED severity and exercise dependence (independent variables) on HRQOL (dependent variable) was significant and explained 16.1% of the variance in HRQOL scores. Additionally, the main effects for ED severity and exercise dependence and the interaction among ED severity and exercise dependence were significant, suggesting that the combined effects of ED severity and exercise dependence significantly impacts HRQOL.DiscussionOur results suggest that pathological motivations for exercise may exacerbate ED's detrimental impact on HRQOL. Our results offer one possible insight into why exercise may be associated with deleterious effects on ED HRQOL. Future research is needed to elucidate the relationship among psychological aspects of exercise, ED, and HRQOL. © 2013 Wiley Periodicals, Inc. (Int J Eat Disord 2014; 47:268–272)
How Do Proximal Hydroxy or Methoxy Groups on the Bidentate Ligand Affect [(2,2′;6′,2"‐Terpyridine)Ru(N,N)X] Water‐Oxidation Catalysts? Synthesis, Characterization, and Reactivity at Acidic and Near‐Neutral pH
Authors: Marelius David C. , Bhagan Salome , Charboneau David J. , Schroeder Kristine M. , Kamdar Jayneil M. , McGettigan Amanda R. , Freeman Benjamin J. , Moore Curtis E. , Rheingold Arnold L. , Cooksy Andrew L. , Smith Diane K. , Paul Jared J. , Papish Elizabeth T. , Grotjahn Douglas B. 
Published: October 2013

AbstractWater‐oxidation catalysts (WOCs) can potentially be improved by installing pendant electron‐donor groups that may also be proton donors or acceptors. We have modified one of the most well‐studied WOCs with alkoxy or hydroxy substituents on the bidentate bipyridine ligand (N,N), thereby forming [(terpy)RuII(N,N)X] (X = Cl, H2O; terpy = 2,2′;6′,2"‐terpyridine). A combination of NMR spectroscopy (particularly 15N chemical‐shift data), UV/Vis spectroscopy, X‐ray diffraction, and oxygen evolution data point to interesting and beneficial effects of an oxygenated group proximal to X. A methoxy group on the 2,2′‐bipyridyl (bipy) ring cis to X = Cl is shown to facilitate ionization of the chloride ligand in aqueous acetone, perhaps by acceptance of a hydrogen bond from the aquo ligand. Hydrogen‐bond donation of a proximal hydroxy group to a bound aquo ligand is shown by X‐ray diffraction. Distinct differences in pKa values for the 4,4′‐ and 6,6′‐dihydroxy bipy complexes are seen. In water oxidation driven by ceric ammonium nitrate, the 6,6′‐dimethoxy species is somewhat faster and longer‐lived than the analogue that lacks the oxygenated groups [a turnover number (TON) of 215 instead of 138 in 10 h, and a turnover frequency (TOF) of 0.36 min–1 instead of 0.23 over the same time period]. Taken together, oxygenated groups near the WOC active site are promising electron or proton donors and/or hydrogen‐bond acceptors, and are the subject of further scrutiny.
Kinetic Analysis of the Living Ring‐Opening Polymerisation of L‐Lactide with Tin(II) Initiators
Authors: Wang Lingfang , Bochmann Manfred , Cannon Roderick D. , Carpentier Jean‐François , Roisnel Thierry , Sarazin Yann 
Published: October 2013

AbstractA general kinetic model to describe the initiation and monomer depletion phases of the metal‐catalysed living ring‐opening polymerisation (ROP) of cyclic esters is presented. The model allows the description of ROP reactions in terms of rates of initiation (ki) and propagation (kp) and is in principle applicable to all metal‐mediated ROP reactions. The model was validated by curve‐fitting of data obtained for the living ROP of L‐lactide catalysed by a variety of tin(II) catalysts. The catalyst was chosen from tin(II) diisopropoxide or from heteroleptic complexes of the type (LOx)Sn(OR), in which (LOx) is an amino or aminoether phenolate ancillary ligand and OR is isopropoxide or O‐tert‐butyl lactate. All tested catalysts promote the controlled, living polymerisation of L‐lactide. No initiation phase was discerned for any of the considered catalysts in polymerisations performed at 60 °C, whereas at 25 °C initiation is an order of magnitude slower than propagation and, therefore, the inclusion of ki is required for an accurate kinetic description. Tin diisopropoxide is polymeric in the solid state, but it is dimeric in toluene solution. [Sn(OiPr)2]2 is an excellent example of an aggregated catalyst precursor and is catalytically more active than the heteroleptic (LOx)Sn(OR). As dissociation of the inactive dimer into a catalytically active monomeric complex is required, half‐order dependence on [metal] is to be expected and was indeed found. A method to estimate the related monomer–dimer equilibrium constant KD under polymerisation conditions is also provided.
Tris(3‐phenylpyrazolyl)methanide Complex of Calcium – Unprecedented Coordination Chemistry and Degradation Reaction
Authors: Müller Christoph , Görls Helmar , Krieck Sven , Westerhausen Matthias 
Published: October 2013

AbstractCalciation of tris(3‐phenylpyrazolyl)methane in tetrahydrofuran and recrystallization from a mixture of toluene and 1,2‐dimethoxyethane yielded [(dme)Ca{C(PzPh)3}2] (1). The molecular structure of this complex resembles a typical dialkylcalcium complex stabilized by long Ca–N contacts to two pyrazolyl fragments. The addition of 1,2‐bis(dimethylamino)ethane (tmeda) to 1 initiated the degradation of the latter and the formation of the dinuclear tmeda adduct [(tmeda)Ca(PzPh)2]2 (2), which is also accessible by calciation of 3‐phenylpyrazole in the presence of tmeda. The liberated bis(3‐phenylpyrazolyl)carbene dimerized, as revealed by mass spectrometric methods.
Interference versus filtering distortion trade‐offs in OFDM‐based cognitive radios
Authors: Maliatsos Konstantinos , Adamis Athanasios , Kanatas Athanasios G. 
Published: October 2013

ABSTRACTCognitive radio (CR) and opportunistic radio access came as a solution for the underutilisation of radio resources. An expected consequence is that the interference management procedures obtain high priority in CR research. While the vast majority of studies focus on interference phenomena towards the licensed primary system (PS), this paper analyses the effects of adjacent primary user (PU) signals to a CR system that uses orthogonal frequency division multiplexing (OFDM) modulation. The lack of orthogonality in OFDM receivers increases out of band interference. The ‘near PU–far CR’ scenario is introduced, an inverse equivalent to the ‘hidden terminal’ problem that may cause serious degradation in the receiver operation. An analytical interference model is developed, and direct filtering of the conventional OFDM waveform is investigated as a means to control interference from PU signals. Closed‐form expressions of the induced distortion are extracted. The results are used to evaluate a filtered‐based OFDM receiver via simulation and to prove that high‐rank filters at CR receivers may be quite beneficial even though OFDM modulation generally avoids their use. Copyright © 2013 John Wiley & Sons, Ltd.
A hybrid anycast network architecture and intelligent server selection strategy for multimedia services
Authors: Yuan Sha , Lin Tao , Zhang Guoqiang , An Wei , Li Yang , Song Ci 
Published: October 2013

ABSTRACTMultimedia services, which are experiencing an enormous popularity nowadays, have been regarded as one of the main applications of Future Internet. A key supporting technology behind these services is a scalable, intelligent and effective anycast service. Present anycast solutions are either based on route‐by‐name or lookup‐by‐name, which cannot fulfill the requirements of today's services. In this paper, we first propose an anycast network architecture that combines the merits of both the route‐by‐name and lookup‐by‐name schemes, which achieves good balance between routing scalability and forwarding efficiency, allows flexible server selection, quickly adapts to network changes and maintains flow affinity. Based on this architecture, practical anycast‐based server selection algorithms are presented with joint considerations of both network condition and server load condition. The proposed algorithms are evaluated through the discrete event network simulations using OMNET++ and the INET framework. Experiment results show that efficient server selection can be achieved. Copyright © 2013 John Wiley & Sons, Ltd.
Natural Gas Matters: State of Play in the Natural Gas Generation Market
Authors: Smead Richard G. 
Published: October 2013

AbstractA couple of months ago in this space, I explored the fit that the most likely level of LNG exports should have within the US supply‐demand balance for natural gas, concluding that the range of easily achievable shale development deliverabilities can certainly accommodate both exports and growth in power generation and industrial loads. I summarized the Energy Information Administration's forecast of the natural gas demand for generation and industrial use, and then layered on top of that a rough estimate of the industry's general expectation of additional growth.
Monetary Crisis: A 2013 Update
Authors: Wolf Fran , Tackett James A. 
Published: October 2013

AbstractWe are in the middle of possibly the most divisive debate in the economic history of the United States. Does the Federal Reserve's policy of quantitative easing (QE) make sense? Or is it, as one prominent critic has charged, a form of “monetary cocaine”—a dangerous business and consumer addiction to near‐zero interest rates? © 2013 Wiley Periodicals, Inc.
Managing Cash in Turbulent Times
Authors: Edwards James B. 
Published: October 2013

AbstractHow much cash does your business have? “Some days there is too much. Some days there is not enough. And then some days there is barely enough,” lamented one business owner. And he's not the only one with this problem, reveals the author of this article. Many business owners have trouble coping in this roller coaster era of prevailing crisis. But is there a solution? © 2013 Wiley Periodicals, Inc.
High‐Tech Sales Tax Evasion
Authors: Akaaboune Ouadie , Cali Jim 
Published: October 2013

AbstractDishonest businesses and individuals now have a high‐tech device to help them evade paying taxes: the tax zapper. The authors explain how it works, the threat it poses to honest companies, and what can be done to stop fraudsters who would use it. © 2013 Wiley Periodicals, Inc.
ESG Reporting: What Is Treasury's New Role?
Authors: Bean LuAnn 
Published: October 2013

AbstractTraditionally, treasurers are responsible for managing cash and market risk. That ensures that the company has sufficient funding and can manage complex compliance issues. But in recent years, the size and complexity of treasury management and compliance issues have expanded enormously. Today's treasurers not only oversee cash management, foreign exchange, and short‐term debt; they struggle with increased responsibilities in other areas: managing capital market activities, merger‐and‐acquisition activity, insurance and pension programs, credit and receivables management, and working capital projections. These newer tasks demand that treasurers take on a new role that requires under‐standing environmental, social, and corporate governance (ESG) reporting risk factors. What must today's treasurers and companies do to meet these new demands? © 2013 Wiley Periodicals, Inc.
Corporate Liquidity Disclosures: An Update
Authors: Cole Cathy J. 
Published: October 2013

AbstractAlthough the liquidity of U.S. companies has generally been improving since 2008, investors and creditors are always keenly interested in this area. And companies must discuss liquidity in the Management's Discussion and Analysis (MD&A) section of reports they file with the U.S. Securities and Exchange Commission (SEC). To help companies prepare these liquidity discussions, this article looks at what some Dow Jones Industrial companies are doing with MD&A. Since these are some of the country's most widely followed companies, examining their common practices may assist others in preparing MD&A. © 2013 Wiley Periodicals, Inc.
Assessing the Costs and Benefits of Investing in Cost System Accuracy
Authors: Stuart Nathan V. 
Published: October 2013

AbstractThis article presents a flowchart to help managers determine whether the benefits of implementing a multiple‐cost‐driver system to improve the accuracy of reported unit costs will outweigh the implementa‐tion costs. The flowchart disciplines decision makers to consider whether the firm produces multiple products, whether those products consume indirect resources in heterogeneous patterns, and whether the firm's competitive position truly depends on more accurately reported cost information. Careful use of this tool will increase the likelihood that investments in cost system accuracy will have positive net present values. © 2013 Wiley Periodicals, Inc.
Hospitalist Experiences, Practice, Opinions, and knowledge regarding peripherally inserted central catheters: Results of a national survey
Authors: Chopra Vineet , Kuhn Latoya , Flanders Scott A. , Saint Sanjay , Krein Sarah L. 
Published: October 2013

BACKGROUNDA Michigan survey found variation in hospitalist‐reported experience, practice, opinions, and knowledge related to peripherally inserted central catheters (PICCs). Whether these findings reflect a national trend is unknown.OBJECTIVETo investigate self‐reported PICC practice among adult hospitalists in the United States.METHODSSociety of Hospital Medicine‐administered, anonymous, Web‐based survey of practicing, adult, non‐Michigan hospitalists.RESULTSOf the 2112 hospitalists who were sent an electronic invitation, 381 completed the online survey (18%). Eighty‐six percent of hospitalists reported having placed a PICC solely for venous access (vs specific indications such as long‐term antibiotics or parenteral nutrition). Eighty‐two percent reported having cared for a patient who specifically requested a PICC. Only 25% of hospitalists reported examining PICCs for evidence of external problems, whereas 57% admitted to having, at least once, forgotten about the presence of a PICC. Only 9% of respondents knew that PICC tip verification was performed primarily to prevent venous thromboembolism. Finally, 42% of participants indicated that 10% to 25% of PICCs placed in their hospitals might be inappropriately placed and/or avoidable.CONCLUSIONSThis national survey highlights several potential opportunities to improve hospitalist PICC practices. A research agenda dedicated to this issue is necessary to improve patient safety and hospital‐based practice. Journal of Hospital Medicine 2013;8:635–638. © 2013 Society of Hospital Medicine
Farmers' accuracy interpreting seasonal climate forecast probability
Authors: Coventry W. L. , Dalgleish L. I. 
Published: October 2013

ABSTRACTWe explored errors interpreting the seasonal climate forecast (SCF) statement ‘In the next 3 months, the probability of exceeding median rainfall is 30%’ used by the Australian media. Study one comprised 73 farmers and 12 climate staff and (1) developed a five‐item multiple‐choice questionnaire assessing understanding for the SCF, and (2) assessed errors interpreting the statement. The farmers who incorrectly interpreted the statement (29%) as forecasting a wetter season than normal had a lower understanding of the statement, in contrast to farmers making the correct interpretation (56%) and the climate staff. The statement appeared to be misinterpreted as a specific value of rain that was above the median by 30%, because of (1) difficulty conceptualizing above median rainfall and below median rainfall as distinct events, and (2) the percentage being interpreted as a specific value and not as a notion of chance. Study two, with 72 laypersons, showed more errors and slower responses with statements of probabilities less than 50% (i.e. 30%) than statements of probabilities greater than 50% (i.e. 70%), explained by the positive connotation biases of the event above median rainfall and/or the use of the term probability.
A coupled analysis of cavity and pore volume changes for pulse tests conducted in soft clay deposits
Authors: Duhaime François , Chapuis Robert P. 
Published: October 2013

SUMMARYThis paper presents a new interpretation method for pulse tests, a field permeability test that allows for rapid measurements of hydraulic conductivity k in aquitards. This new method applies to soft clay deposits. To initiate a pulse test, a known volume of water is injected into the sand filter of a monitoring well isolated by a packer. The resulting pressure increase yields an outward movement of the sand filter cavity wall. After presenting the usual interpretation methods and their limits, this paper proposes a new interpretation method based on a coupled analysis of the pressure and displacement fields in the soil using the Biot–Darcy formulation. A series of analytical and numerical non‐dimensional velocity graphs, normalized plots of the mean hydraulic head difference versus its rate of change, are given. For a linear elastic material, these type curves show relatively small variations with the sand filter aspect ratio and the Poisson ratio of the tested clay. The type curves are also found to be independent of the clay compressibility (mv) and k, an important result. A series of pulse tests conducted in a soft marine clay deposit near Montreal, Canada, are interpreted with the proposed method. The hydraulic conductivity values calculated from these tests are closely correlated with independent estimates obtained using long‐duration variable‐head tests. Compared with previous interpretation methods, the proposed method allows soil volume changes to be reconciled with cavity expansion phenomena and the range of type curves available for the interpretation of test data to be constrained. Copyright © 2013 John Wiley & Sons, Ltd.
Variable selection on large case‐crossover data: application to a registry‐based study of prescription drugs and road traffic crashes
Authors: Avalos Marta , Orriols Ludivine , Pouyes Hélène , Grandvalet Yves , Thiessard Frantz , Lagarde Emmanuel ,   on behalf of the CESIR research group
Published: October 2013

ABSTRACTPurposeIn exploratory analyses of pharmacoepidemiological data from large populations with large number of exposures, both a conceptual and computational problem is how to screen hypotheses using probabilistic reasoning, selecting drug classes or individual drugs that most warrant further hypothesis testing.MethodsWe report the use of a shrinkage technique, the Lasso, in the exploratory analysis of the data on prescription drugs and road traffic crashes, resulting from the case‐crossover matched‐pair interval approach described by Orriols and colleagues (PLoS Med 2010; 7:e1000366). To prevent false‐positive results, we consider a bootstrap‐enhanced version of the Lasso. To highlight the most stable results, we extensively examine sensitivity to the choice of referent window.ResultsAntiepileptics, benzodiazepine hypnotics, anxiolytics, antidepressants, antithrombotic agents, mineral supplements, drugs used in diabetes, antiparkinsonian treatment, and several cardiovascular drugs showed suspected associations with road traffic accident involvement or accident responsibility.ConclusionThese results, in relation to other findings in the literature, provide new insight and may generate new hypotheses on the association between prescription drugs use and impaired driving ability. Copyright © 2013 John Wiley & Sons, Ltd.
Reduction of current collapse in AlGaN/GaN MISHEMT with bilayer SiN/Al2O3 dielectric gate stack
Authors: Anand M. J. , Ng G. I. , Vicknesh S. , Arulkumaran S. , Ranjan K. 
Published: October 2013

AbstractWe have studied the drain current dispersion characteristics of conventional AlGaN/GaN HEMTs and SiN/Al2O3/AlGaN/GaN metal‐insulator‐semiconductor high electron mobility transistors (MISHEMT) fabricated on silicon substrate. The fabricated MISHEMT exhibited an IDmaxof >1000 mA/mm and gmmax of 241 mS/mm. Compared to conventional AlGaN/GaN HEMTs, about an order of magnitude lower gate leakage current and a ∼ 60% reduction in drain current (ID) collapse was observed in the MISHEMTs. The observation of low ID collapse is due to the occurrence of low interface state density (6.39 × 1010 eV‐1 cm‐2) between the bilayer dielectric (SiN/Al2O3) and GaN surface which is confirmed through the AC‐conductance method. (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Current injected spectrum change in flat‐topped InAs/InP QD arrayed waveguide LED with different QD heights
Authors: Yoshikawa Shohei , Yamauchi Masayuki , Yamamoto Yuta , Shimomura Kazuhiko 
Published: October 2013

AbstractWe have investigated the current injected spectrum of flat‐topped LED using self‐assembled Stranski‐Krastanov (S‐K) InAs/InP quantum dots (QDs) grown by selective area low pressure metalorganic vapor phase epitaxy and a double‐capping procedure. Selective area growth using an SiO2 mask with narrow stripes was carried out to tailor a wide emission range for the QDs in sixteen arrayed waveguides. Each waveguide core con‐tained three stacked QD layers with different QD heights and Ga content in the GaInAs buffer layer. We have measured the spectrum change of current injection, and have estimated the intensity variation in each QDs layer. By increasing the FCL thickness of three QDs layers, output intensity of each layer has become equal, and we have obtained more than 500 nm spectrum width with flat‐topped spectrum shape. (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Polarization controlled emisson from closely stacked InAs/GaAs quantum dots
Authors: Suwa Masaya , Takahashi Akihiro , Ueda Tatsuya , Yusuke Bessho , Harada Yukihiro , Kita Takashi 
Published: October 2013

AbstractWe have controlled the electronic states of closely‐stacked InAs/GaAs quantum dots with a 4.0 nm spacer layer and investigated the optical gain characteristics. With an increase in the stacking‐layer number (SLN), the [001] transverse‐magnetic (TM) polarization component increases as well as the linear polarization anisotropy in the (001) plane becomes remarkable. These SLN‐dependent polarization characteristics result from the valence‐band mixing induced by the vertically‐coupled electronic states in stacked QDs. We have systematically studied polarized electroluminescence properties of a semiconductor‐optical amplifier devise containing 30‐stacked InAs/GaAs QDs. The net modal gain was analyzed by using the Hakki‐Paoli method. The injection current dependence of the gain spectra shows a state filling effect and a change in the contribution of the TM polarization component. The polarization insensitive gain feature within ±1 dB has been achieved in the low injection current condition. (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)