bluuebunny/crossref_metadata_2025_split huggingface dataset:
Renal Allograft Outcomes From Spousal and Other Living‐Unrelated Donors
Authors: Lee Yu‐Ji , Lee Jung Eun , Kim Sung‐Joo , Kim Yoon‐Goo , Kim Dae Joong , Oh Ha‐Young , Huh Wooseong 
Published: July 2009

AbstractOBJECTIVEThe objective of this study was to compare renal allograft outcomes from spousal donors with those from other living‐unrelated donors (LUD), and to make the best use of spousal donors.METHODSFrom February 1995 to February 2006, 812 renal transplantations were performed at our center, of which 185 were from LUDs. A retrospective analysis was made of all recipients who successfully underwent living‐unrelated renal transplantation.RESULTSA total of 55 out of the 185 recipients received a kidney from their spouses. Compared with other LUDs, spousal donors were older and had poorer human leukocyte antigen (HLA) mismatching. The time from initiation of dialysis to transplantation was shorter in transplantation from spousal donors. The incidence of acute rejection within the first year after transplantation was more frequent in spousal grafts. However 1‐year and 5‐year survival rates for spousal and other living‐unrelated grafts were not significantly different (96.3% and 93.7% for spousal grafts versus 97.7% and 89.3% for other living‐unrelated grafts, p = .925). The survival rate for 5‐year patients was 96.4% and 97.5%, respectively.DISCUSSIONTransplantation from spousal donors has comparable outcomes to those of other LUDs, and shortens time spent on the waiting list. Therefore, spousal donation should be considered as a useful source to overcome an organ shortage.
Fatigue in People Undergoing Hemodialysis
Authors: Mollaoglu Mukadder 
Published: July 2009

AbstractBACKGROUNDFatigue, a common symptom reported by people with end‐stage renal disease (ESRD), is a nonspecific and invisible symptom and is a phenomenon that is poorly understood by healthcare professionals. There is limited understanding of the level of fatigue experienced by people with ESRD, with research currently limited to people treated with hemodialysis.AIMLevels of fatigue as experienced by people undergoing hemodialysis (HD) were assessed using the Visual Analog Scale for Fatigue (VAS‐F).METHODThe VAS‐F was completed by 138 people with ESRD who were patients of HD units in Sivas, Turkey. Demographic and renal health history data were also collected with a structured questionnaire. The statistical analyses used in order to evaluate the data include: student's t‐test, Kruskal‐Wallis test, Pearson correlation test, and logistic regression analysis.RESULTSThe level of fatigue experienced by people with HD in our study was high, and their energy level was low. Univariate analysis showed that levels of fatigue differed by gender, age, education, employment, and presence of anemia. However, logistic regression analysis, age, and duration of dialysis were found to be the independent predictors of fatigue.CONCLUSIONSThe results of the study indicated that high levels of fatigue are experienced. In order to improve patient care and promote patient's quality of life, nephrology professionals should understand the comprehensive assessment of fatigue and work with patients to initiate a range of strategies and interventions to address it.
Scopoletin induces apoptosis of fibroblast‐like synoviocytes from adjuvant arthritis rats by a mitochondrial‐dependent pathway
Authors: Li Ying , Dai Yue , Liu Mei , Pan Rong , Luo Yubin , Xia Yufeng , Xia Xiaofeng 
Published: July 2009

AbstractScopoletin is a naturally occurring coumarin compound found in many medicinal plants, such as Erycibe obtusifolia Benth and Aster tataricus. Our previous studies have demonstrated that this compound could ameliorate adjuvant‐induced arthritis in a rat model of human rheumatoid arthritis (RA). Since the proliferation of fibroblast‐like synoviocytes (FLS) plays a pivotal role in the formation and growth of pannus, which leads to subsequent joint destruction in RA, we examined the effects of scopoletin on FLS apoptosis. Primary FLS from adjuvant arthritis rats were purified and cultured, and then treated with increasing concentrations of scopoletin (250, 500, 1,000 µM) for 24 h. Scopoletin decreased the viability of FLS in a dose‐dependent manner and remarkably induced their apoptosis, as revealed by Hochest 33258 staining and flow cytometry analysis. Further experiments showed that scopoletin activated caspase‐3, depolarized mitochondrial membrane potential, regulated expression of bcl‐2 family members, and reduced the activation of NF‐κB proteins. These results indicated that scopoletin induced apoptosis of FLS through a mitochondrial‐dependent pathway, which may be mediated by inhibition of NF‐κB activation and promotion of caspase‐3 activation. Drug Dev Res, 2009. © 2009 Wiley‐Liss, Inc.
Cognitive profiles of chinese adolescents with dyslexia
Authors: Chung Kevin K. H. , Ho Connie Suk‐Han , Chan David W. , Tsang Suk‐Man , Lee Suk‐Han 
Published: July 2009

AbstractThe present study sought to identify cognitive abilities that might distinguish Hong Kong Chinese adolescents with and without dyslexia and examined the cognitive profile of dyslexic adolescents in order to better understand this important problem. The performance of 27 Chinese adolescents with childhood diagnoses of dyslexia was compared with 27 adolescents of the same chronological age (CA) and 27 of matched reading level (RL) on measures of literacy and cognitive abilities: Chinese word reading, one‐minute reading, reading comprehension, dictation, verbal short‐term memory, rapid naming, visual‐orthographic knowledge, morphological and phonological awareness. The results indicated that the dyslexic group scored lower than the CA group, but similar to the RL group, especially in the areas of rapid naming, visual‐orthographic knowledge and morphological awareness, with over half having multiple deficits exhibited 2 or more cognitive areas. Furthermore, the number of cognitive deficits was associated with the degree of reading and spelling impairment. These findings suggest that adolescents with childhood diagnoses of dyslexia have persistent literacy difficulties and seem to have multiple causes for reading difficulties in Chinese. Copyright © 2009 John Wiley & Sons, Ltd.
Moisture controls on CO2 exchange in a Sphagnum‐dominated peatland: results from an extreme drought field experiment
Authors: Strack M. , Waddington J. M , Lucchese M. C , Cagampan J. P 
Published: July 2009

AbstractPeatlands store globally significant quantities of soil carbon, and Sphagnum moss is the main peat forming vegetation type in bogs. Sphagnum moss productivity is driven by the moisture content of its apical cluster of branches, the capitulum. Capitulum moisture content is dependent on the arrangement of leaves, branches and stems for a given species and also on hydrological conditions of the underlying peat. Despite this link, the response of CO2 exchange in Sphagnum‐dominated peatlands to extreme drought is still unclear, particularly under field conditions.We used drainage to expose Sphagnum rubellum to extreme drought and monitored water table, volumetric water content (VWC), gross ecosystem photosynthesis (GEP), ecosystem respiration (ER) and net ecosystem exchange of CO2 (NEE) at plots in a 25 m transect perpendicular to a deep drainage ditch and compared results to an undrained site. VWC in the upper 10 cm of peat was strongly related to water table at depths shallower than 55 cm. Below this depth, near surface VWC remained relatively constant between 25 and 28% and Sphagnum GEP was effectively shut down. This also resulted in decreased ER at these locations. The combined effect was a linear relationship between VWC and NEE with moist sites acting as net CO2 sinks (up to −5 g CO2 m−2 day−1) whereas sites closest to the ditch were consistently small carbon sources. We suggest that understanding how climate change will alter peatland hydrology relative to the moisture thresholds of Sphagnum mosses is critical to determining the fate of their carbon sink function. Copyright © 2009 John Wiley & Sons, Ltd.
Synthesis, Insertion Reactivity, and Transmetalation Reactions of the Lithium Complex [{2‐(6‐R‐Pyr)(Me3Si)}CHLi·OEt2]2 (R = H or Me)
Authors: Chen Xia , Guan Lingling , Eisen Moris S. , Li Haifen , Tong Hongbo , Zhang Liping , Liu Diansheng 
Published: July 2009

AbstractTreatment of 6‐R‐2‐(Me3SiCH2)C5H3N (R = H or Me) with nBuLi in diethyl ether affords the dimeric lithium complexes [{2‐(6‐R‐Pyr)(Me3Si)}CHLi·OEt2]2 (Pyr = pyridine, C5H3N) in high yields. In these complexes, the two anionic ligands have different bonding modes. These complexes easily undergo insertion reactions with nitriles to form six‐membered cyclic dimeric complexes in good yields. Further transmetalations of the six‐membered cyclic complexes with CuCl, SnCl4, or CoCl2 allow the formation of new metal complexes that maintain the frameworks of the six‐membered metallacycles. All complexes represented above were fully characterized by methods including single‐crystal X‐ray crystallography. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)
X‐ray Structures, Spectroscopic and Magnetic Studies of a Coordination Polymer Series Based on a TTF Derivative and Paramagnetic Transition Metals
Authors: Olivier Jean , Golhen Stéphane , Świetlik Roman , Cador Olivier , Pointillart Fabrice , Ouahab Lahcène 
Published: July 2009

AbstractThe oxidation of 2,3,6,7‐tetrakis(2‐cyanoethylthio)tetrathiafulvalene (TCE‐TTF) with hexafluoroacetylacetonate (hfac) salts of paramagnetic (CoII, MnII) and diamagnetic (ZnII, CdII) ions in the presence of tetrahedral anions (BF4– and ClO4–) resulted in the isolation of four isostructural salts. The structure of these salts revealed an infinite two‐dimensional network due to the coordination of the nitrilo arms of TCE‐TTF to the metal. Short interplanar S···S interactions between two planes involving TCE‐TTF give a third dimension to this polymer. TTF ligands are fully oxidized, and hence these materials show semiconducting behaviour. Spectroscopic and magnetic studies of the paramagnetic‐transition‐metal‐containing polymers are also presented.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)
Synthesis of Chiral Bridled Porphyrins in their Two Enantiomeric Forms
Authors: Fateeva Alexandra , Pécaut Jacques , Bayle Pierre‐Alain , Maldivi Pascale , Dubois Lionel 
Published: July 2009

AbstractWe describe the synthesis of a new family of chiral bridled porphyrins. They were obtained by reaction between pyrrole and a chiral 2‐formylcyclohexanol derivative. Thanks to an enzymatic kinetic resolution method, these compounds were obtained in both enantiomeric forms. This resolution method allows easy synthesis of chiral precursors in high yield and on large scale. These new porphyrins exhibited an (αα)(αα) conformation and the less usual (αα)(ββ) one, depending of the bridle length.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)
Efficient Synthesis and Cytotoxic Activity of Some Symmetrical Disulfides Derived from the Quinolin‐4(1H)‐one Skeleton
Authors: Soural Miroslav , Hlaváč Jan , Hradil Pavel , Hajdúch Marián 
Published: July 2009

AbstractThe preparation of novel organic disulfides containing the 2‐(substituted phenyl)quinolin‐4(1H)‐one ring is described. The synthesis starts from thioanthranilic acid esterified with various bromoacetophenones. Cyclization of the resulting phenacyl thioanthranilates in trifluoroacetic acid afforded a mixture of 2‐(substituted phenyl)‐3‐sulfanylquinolin‐4(1H)‐ones and 3,3′‐disulfanediylbis[2‐(substituted phenyl)quinolin‐4(1H)‐ones]. Heating of the mixture in o‐xylene gave 3,3′‐disulfanediylbis[2‐(substituted phenyl)quinolin‐4(1H)‐ones]of high purity. The disulfides exhibited a significant in vitro cytotoxicity against various cancer cell lines including polyresistant subclones. The data obtained are reported and discussed.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)
Mimicking disliked others: Effects of a priori liking on the mimicry‐liking link
Authors: Stel Mariëlle , Blascovich Jim , McCall Cade , Mastop Jessanne , van Baaren Rick B. , Vonk Roos 
Published: July 2009

AbstractThe sharing of bodily states elicits in mimicker and mimickee corresponding conceptualisations, which facilitates liking. There are many studies showing the relatedness of mimicry and liking. However, the mimicry‐liking link has not been investigated under conditions in which the mimickee is liked or disliked a priori. In two studies, we examined moderating effects of a priori liking on the mimicry‐liking link. Liking was measured via self‐report measures (Studies 1 and 2) and behavioural measures using a virtual environment technology (Study 2). Results showed that when participants intentionally mimicked a disliked person, liking for that person was not improved, whereas when participants mimicked a liked person, liking for that person increased. These effects were shown to be mediated by affiliation. These studies not only provided further evidence of a link between mimicry and liking, but also demonstrated that this relationship is moderated by a priori liking. Copyright © 2009 John Wiley & Sons, Ltd.
The benefits of empathy: When empathy may sustain cooperation in social dilemmas
Authors: Rumble Ann C. , Van Lange Paul A. M. , Parks Craig D. 
Published: July 2009

AbstractCooperation in social dilemmas is often challenged by negative noise, or unintended errors, such that the actual behavior is less cooperative than intended—for example, arriving later than intended for a meeting due to an unusual traffic jam. The present research was inspired by the notion that doing a little more for one's interaction partner, which may be movitvated by empathetic feelings, can effectively reduce the detrimental effects of “negative noise,” or unintended incidents of noncooperation. Consistent with hypotheses, negative noise exhibited detrimental effects on cooperation, but such effects were absent when empathy‐motivated cooperation was present. We conclude that empathy has broad benefits for social interaction, in that it can be an effective tool for coping with misinterpreted behaviors, thereby maintaining or enhancing cooperation. Copyright © 2009 John Wiley & Sons, Ltd.
CE with a new electrochemiluminescent detection system for separation and detection of proteins labeled with tris(1,10‐phenanthroline) ruthenium(II)
Authors: Guo Longhua , Qiu Bin , Xue Linlin , Chen Guonan 
Published: July 2009

AbstractIn this article, a CE with a new electrochemiluminescent (ECL) detection system was developed. A microfluidic ECL detection cell with less than 0.5 μL dead volumes was developed and used as detector for this system. A hydrofluoric acid‐etched porous joint was made at 8 mm from the outlet of the separation capillary to isolate the CE high voltage from ECL detection. The proposed CE‐ECL system was applied for separation and detection of some proteins labeled with tris(1,10‐phenanthroline) ruthenium(II). High efficiency ECL‐enhanced reagent, tripropylamine, was infused to the detection cell as coreactant by a micro‐infusion system to obtain maximum and stable ECL signal. The performance of this setup was illustrated by the analysis of tris(1,10‐phenanthroline) ruthenium(II)‐labeled proteins. The background electrolyte for protein detection was 20 mM Tris‐CH3COOH with 2.0% m/m PVP at pH 4.0. Under the optimal conditions, the corresponding LOD were 2.2×10−10 M for HSA, 4.4×10−10 M for casein (α‐S1) and 5.1×10−10 M for cytochrome c. The proposed method was also successfully used for the trace analysis of albumin in human urine without any pretreatment.
Separation of peptides by open‐tubular capillary electrochromatography using Fe(III)‐deuteroporphyrin as a covalently attached stationary phase
Authors: Yone Ángel , Carballo Romina R. , Rezzano Irene N. , Vizioli Nora M. 
Published: July 2009

AbstractThe separation of seven biologically active peptides was attempted by open‐tubular capillary electrochromatography in fused‐silica capillaries chemically modified with iron (III)‐deuteroporphyrin using UV‐absorption detection at 214 nm. The effect of BGE pH and content of organic solvent modifier was investigated. The best separations were obtained in 25 mM phosphate (BGE), pH 4.0, containing 5% v/v ACN and 10 mM hydroquinone, which was added to prevent gas bubble formation. Considering the method sensitivity, lower concentration LODs were obtained for all peptides in their open‐tubular capillary electrochromatography separation as compared with their CZE separation in bare fused‐silica capillary. The iron (III)‐deuteroporphyrin column proved to be highly stable over time and showed acceptable precision of migration times and corrected peak areas (RSD in the range 2–4%).
The multi‐clump finite mixture distribution and model selection
Authors: Paul Sudhir R. , Banerjee Tathagata , Balasoorya Uditha 
Published: July 2009

AbstractIn practical data analysis, often an important problem is to determine the number of clumps in discrete data in the form of proportions. This can be done through model selection in a multi‐clump finite mixture model. In this paper, we propose bootstrap likelihood ratio tests to test the fit of a multinomial model against the single clump finite mixture distribution and to determine the number of clumps in the data, that is, to select a model with appropriate number of clumps. Shortcomings of some traditional large sample procedures are also shown. Three datasets are analyzed. Copyright © 2009 John Wiley & Sons, Ltd.
A compound Poisson model for the annual area burned by forest fires in the province of Ontario
Authors: Podur Justin J. , Martell David L. , Stanford David 
Published: July 2009

AbstractWe use the compound Poisson probability distribution to model the annual area burned by forest fires in the Canadian province of Ontario. Models for sums‐of‐random variables, relevant for modeling aggregate insurance claims and assessing insurance risk are also relevant in modeling aggregate area burned based on sums of sizes of individual fires. Researchers have fit the distribution of fire sizes to the truncated power‐law (or Pareto) distribution (Wardet al., 2001) and a four‐parameter Weibull distribution (Reed and McKelvey,2002). Armstrong (1999) fitted a lognormal distribution to annual proportion of area burned by forest fires in a region of Alberta. We derive expressions and moments for aggregate area burned in Ontario using fire data from the Ontario Ministry of Natural Resources (OMNR). We derive expressions for the distribution of area burned for “severe” and “mild” fire weather scenarios and for “intensive suppression” and “no suppression” scenarios (represented by the intensive and extensive fire protection zones of the province). These distributions can be used to perform risk analysis of annual area burned. Copyright © 2009 John Wiley & Sons, Ltd.
Berm formation and dynamics on a gently sloping beach; the effect of water level and swash overtopping
Authors: Jensen Stine G. , Aagaard Troels , Baldock Tom E. , Kroon Aart , Hughes Michael 
Published: July 2009

AbstractBerm formation and morphological development of the beach face have been observed during a neap–neap tidal cycle on the gently sloping and accreting beach at Vejers, Denmark. During the field campaign, an intertidal bar migrated onshore and stabilized as a berm on the foreshore. A new intertidal bar occurred on the lower beach face, migrated onshore on the rising tide and finally merged with the pre‐existing berm. As the tide continued to rise, the new berm translated further onshore as an intertidal bar to the uppermost part of the foreshore. The sediment transport during the berm transition was onshore directed in the upper swash and offshore directed in the lower swash. This berm development can be described through both the neap‐berm, ridge‐and‐runnel and berm‐ridge development concepts proposed by Hine (Sedimentology 1979; 26: 333–351), and all three stages were observed during only three tidal cycles. The main factors controlling this fast transformation were the gentle slope of the cross‐shore profile, rapid water level translation rates, substantial swash overtopping of the berm, and low infiltration rates. Despite the onshore migration of intertidal bars and berm formation, no net foreshore accretion took place during the field campaign. This was largely due to the formation of rip channels with strong rip currents cutting through the intertidal bars and the berm, which acted as a sediment drain in the profile. Copyright © 2009 John Wiley & Sons, Ltd.
Discontinuous Galerkin solution of preconditioned Euler equations for very low Mach number flows
Authors: Nigro A. , De Bartolo C. , Hartmann R. , Bassi F. 
Published: July 2009

AbstractIn this work we present a discontinuous Galerkin (DG) method designed to improve the accuracy and efficiency of the steady‐state solution at very low Mach number flows using an explicit scheme. The algorithm is based on a perturbed formulation of the compressible Euler equations and employs the preconditioning of both the instationary term of the governing equations and the dissipative term of the numerical flux function (full preconditioning approach).The performance of the scheme is demonstrated by solving an inviscid flow past a NACA0012 airfoil at different very low Mach numbers using various degrees of polynomial approximation. We present numerical results computed with and without perturbed variables, which illustrate the influence of the cancellation errors on both the convergence and the accuracy of the DG solutions at low Mach numbers. Copyright © 2009 John Wiley & Sons, Ltd.
Practical evaluation of five partly discontinuous finite element pairs for the non‐conservative shallow water equations
Authors: Comblen Richard , Lambrechts Jonathan , Remacle Jean‐François , Legat Vincent 
Published: July 2009

AbstractThis paper provides a comparison of five finite element pairs for the shallow water equations. We consider continuous, discontinuous and partially discontinuous finite element formulations that are supposed to provide second‐order spatial accuracy. All of them rely on the same weak formulation, using Riemann solver to evaluate interface integrals. We define several asymptotic limit cases of the shallow water equations within their space of parameters. The idea is to develop a comparison of these numerical schemes in several relevant regimes of the subcritical shallow water flow. Finally, a new pair, using non‐conforming linear elements for both velocities and elevation (P−P), is presented, giving optimal rates of convergence in all test cases. P−P1 and P−P1 mixed formulations lack convergence for inviscid flows. P−P2 pair is more expensive but provides accurate results for all benchmarks. P−P provides an efficient option, except for inviscid Coriolis‐dominated flows, where a small lack of convergence is observed. Copyright © 2009 John Wiley & Sons, Ltd.