bluuebunny/crossref_metadata_2025_split huggingface dataset:
Spatio-temporal Brain Dynamics Mediating Post-error Behavioral Adjustments
Authors: Manuel Aurelie L. , Bernasconi Fosco , Murray Micah M. , Spierer Lucas 
Published: October 2011

Abstract
Optimal behavior relies on flexible adaptation to environmental requirements, notably based on the detection of errors. The impact of error detection on subsequent behavior typically manifests as a slowing down of RTs following errors. Precisely how errors impact the processing of subsequent stimuli and in turn shape behavior remains unresolved. To address these questions, we used an auditory spatial go/no-go task where continual feedback informed participants of whether they were too slow. We contrasted auditory-evoked potentials to left-lateralized go and right no-go stimuli as a function of performance on the preceding go stimuli, generating a 2 × 2 design with “preceding performance” (fast hit [FH], slow hit [SH]) and stimulus type (go, no-go) as within-subject factors. SH trials yielded SH trials on the following trials more often than did FHs, supporting our assumption that SHs engaged effects similar to errors. Electrophysiologically, auditory-evoked potentials modulated topographically as a function of preceding performance 80–110 msec poststimulus onset and then as a function of stimulus type at 110–140 msec, indicative of changes in the underlying brain networks. Source estimations revealed a stronger activity of prefrontal regions to stimuli after successful than error trials, followed by a stronger response of parietal areas to the no-go than go stimuli. We interpret these results in terms of a shift from a fast automatic to a slow controlled form of inhibitory control induced by the detection of errors, manifesting during low-level integration of task-relevant features of subsequent stimuli, which in turn influences response speed.
Recipes for Correcting the Impact of Effective Mesoscale Resolution on the Estimation of Extreme Winds
Authors: Larsén Xiaoli Guo , Ott Søren , Badger Jake , Hahmann Andrea N. , Mann Jakob 
Published: October 2011

AbstractExtreme winds derived from simulations using mesoscale models are underestimated because of the effective spatial and temporal resolutions. This is reflected in the spectral domain as an energy deficit in the mesoscale range. The energy deficit implies smaller spectral moments and thus underestimation in the extreme winds. The authors have developed two approaches for correcting the smoothing effect resulting from the mesoscale model resolution that impacts the extreme wind estimation by taking into account the difference between the modeled and measured spectra in the high-frequency range. Both approaches give estimates of the smoothing effect that are in good agreement with measurements from several sites in Denmark and Germany.
Long-Term Biological Variation of Serum Protein Electrophoresis M-Spike, Urine M-Spike, and Monoclonal Serum Free Light Chain Quantification: Implications for Monitoring Monoclonal Gammopathies
Authors: Katzmann Jerry A , Snyder Melissa R , Rajkumar S Vincent , Kyle Robert A , Therneau Terry M , Benson Joanne T , Dispenzieri Angela 
Published: October 2011

BACKGROUND
We analyzed serial data in patients with clinically stable monoclonal gammopathy to determine the total variation of serum M-spikes [measured with serum protein electrophoresis (SPEP)], urine M-spikes [measured with urine protein electrophoresis (UPEP)], and monoclonal serum free light chain (FLC) concentrations measured with immunoassay.

METHODS
Patients to be studied were identified by (a) no treatment during the study interval, (b) no change in diagnosis and &lt;5 g/L change in serum M-spike over the course of observation; (c) performance of all 3 tests (SPEP, UPEP, FLC immunoassay) in at least 3 serial samples that were obtained 9 months to 5 years apart; (d) serum M-spike ≥10 g/L, urine M-spike ≥200 mg/24 h, or clonal FLC ≥100 mg/L. The total CV was calculated for each method.

RESULTS
Among the cohort of 158 patients, 90 had measurable serum M-spikes, 25 had urine M-spikes, and 52 had measurable serum FLC abnormalities. The CVs were calculated for serial SPEP M-spikes (8.1%), UPEP M-spikes (35.8%), and serum FLC concentrations (28.4%). Combining these CVs and the interassay analytical CVs, we calculated the biological CV for the serum M-spike (7.8%), urine M-spike (35.5%), and serum FLC concentration (27.8%).

CONCLUSIONS
The variations in urine M-spike and serum FLC measurements during patient monitoring are similar and are larger than those for serum M-spikes. In addition, in this group of stable patients, a measurable serum FLC concentration was available twice as often as a measurable urine M-spike.
Regulation of the hypothalamic-pituitary-adrenal axis by neuropeptides
Authors: Aguilera Greti 
Published: October 2011

Abstract
The major endocrine response to stress occurs via activation of the hypothalamic-pituitary-adrenal (HPA) axis, leading ultimately to increases in circulating glucocorticoids, which are essential for the metabolic adaptation to stress. The major players in the HPA axis are the hypothalamic neuropeptide, corticotropin releasing hormone (CRH), the pituitary hormone adrenocorticotropic hormone, and the negative feedback effects of adrenal glucocorticoids. In addition, a number of other neuropeptides, including vasopressin (VP), angiotensin II, oxytocin, pituitary adenylate cyclase activating peptide, orexin and cholecystokinin, and nesfatin can affect HPA axis activity by influencing the expression and secretion of CRH, and also by modulating pituitary corticotroph function or adrenal steroidogenesis. Of these peptides, VP co-secreted with CRH from axonal terminals in the external zone of the median eminence plays a prominent role by potentiating the stimulatory effect of CRH and by increasing the number of pituitary corticotrophs during chronic challenge. Although the precise role and significance of many of these neuropeptides in regulating HPA axis activity requires further investigation, it is likely that they are part of a multifactorial system mediating the fine tuning of HPA axis activity during adaptation to a variety of physiological and stressful conditions.
Alles in Ordnung!
Authors: Ellinger Tobias , Oettershagen Philip , Laschke Matthias , Hassenzahl Marc 
Published: October 2011

Zusammenfassung
Aufräumen ist nicht nur eine lästige Bürde. Die eigene Ordnung vermittelt uns auch das Gefühl von Sicherheit. Die vorliegende Arbeit stellt ein persuasives Konzept vor, das zu einem freudvollen Aufräumen am Schreibtisch motiviert. Konzept, Interaktion als auch die spätere formale Gestaltung adressieren das Erleben von Sicherheit und Autonomie.
Inhibition of c-Jun N-Terminal Kinase Attenuates Low Shear Stress-Induced Atherogenesis in Apolipoprotein E-Deficient Mice
Authors: Wang Juan , An Feng Shuang , Zhang Wei , Gong Lei , Wei Shu Jian , Qin Wei Dong , Wang Xu Ping , Zhao Yu Xia , Zhang Yun , Zhang Cheng , Zhang Ming-Xiang 
Published: October 2011

AbstractAtherosclerosis begins as local inflammation of arterial walls at sites of disturbed flow, such as vessel curvatures and bifurcations with low shear stress. c-Jun NH2-terminal kinase (JNK) is a major regulator of flow-dependent gene expression in endothelial cells in atherosclerosis. However, little is known about the in vivo role of JNK in low shear stress in atherosclerosis. We aimed to observe the effect of JNK on low shear stress-induced atherogenesis in apolipoprotein E-deficient (ApoE−/−) mice and investigate the potential mechanism in human umbilical vein endothelial cells (HUVECs). We divided 84 male ApoE−/− mice into two groups for treatment with normal saline (NS) (n = 42) and JNK inhibitor SP600125 (JNK-I) (n = 42). Perivascular shear stress modifiers were placed around the right carotid arteries, and plaque formation was studied at low shear stress regions. The left carotid arteries without modifiers represented undisturbed shear stress as a control. The NS group showed atherosclerotic lesions in arterial regions with low shear stress, whereas the JNK-I group showed almost no atherosclerotic lesions. Corresponding to the expression of proatherogenic vascular cell adhesion molecule 1 (VCAM-1), phospho-JNK (p-JNK) level was higher in low shear stress regions with NS than with JNK-I inhibitor. In HUVECs under low shear stress, siRNA knockdown and SP600125 inhibition of JNK attenuated nuclear factor (NF)-κB activity and VCAM-1 expression. Furthermore, siRNA knockdown of platelet endothelial cell adhesion molecule 1 (PECAM-1) (CD31) reduced p-JNK and VCAM-1 levels after low shear stress stimulation. JNK may play a critical role in low shear stress-induced atherogenesis by a PECAM-1-dependent mechanosensory pathway and modulating NF-κB activity and VCAM-1 expression.
Alignment of Nephrology Training with Workforce, Patient, and Educational Needs
Authors: Lane Cathie , Brown Mark 
Published: October 2011

Summary

Background and objectives
Competency-based training programs focus on the product of training rather than the process with the desired attributes and skills set of the specialist directing the training program. These ideal skills and qualities have yet to be formally identified for nephrology training. The objectives of our study were: (1) to define the attributes of a “high quality” nephrologist from the perspectives of the trainer (nephrologist), trainee, and renal patient and (2) identify components and relative frequencies of nephrologists' work practice.

Design, setting, participants, & measurements
Four substudies were undertaken, utilizing a combined quantitative and qualitative approach: (1) a national nephrology workforce study, (2) in-depth interviews of nephrology patients, (3) in-depth interviews of nephrology trainees, and (4) in-depth interviews of practicing nephrologists.

Results
Patients value good communication skills above other attributes. Nephrologists and trainees identify particular personal attributes, a holistic and evidence-based approach to patient care, and good clinical skills as paramount. Although nephrologists spend most of their time in clinical practice, substantial time is also spent in research, teaching, and administrative work.

Conclusions
For the first time, an evidence-based approach has been used to help define qualities desired in a practicing nephrologist. Along with training and assessment in clinical practice, this research supports nephrology training programs incorporating training in basic interventions, research skill acquisition, administration, and teaching. Training toward high standards in advanced communication and the maintenance of a holistic approach to patient care are necessary.
Serum Erythropoietin Level and Mortality in Kidney Transplant Recipients
Authors: Molnar Miklos Z. , Tabak Adam G. , Alam Ahsan , Czira Maria E. , Rudas Anna , Ujszaszi Akos , Beko Gabriella , Novak Marta , Kalantar-Zadeh Kamyar , Kovesdy Csaba P. , Mucsi Istvan 
Published: October 2011

Summary

Background and objectives
Posttransplant anemia is frequently reported in kidney transplant recipients and is associated with worsened patient survival. Similar to high erythropoiesis-stimulating agent requirements, resistance to endogenous erythropoietin may be associated with worse clinical outcomes in patients with ESRD. We examined the association between serum erythropoietin levels and mortality among kidney transplant recipients.

Design, setting, participants, & measurements
We collected sociodemographic, clinical, medical, and transplant history and laboratory data at baseline in 886 prevalent kidney transplant recipients (mean age 51 ± 13 [SD] years, 60% men, 21% diabetics). A solid-phase chemiluminescent immunometric assay was used to measure serum erythropoietin. Cox proportional hazards regression was used to model the association between baseline serum erythropoietin levels and all-cause mortality risk.

Results
During the median 39-month follow-up, 99 subjects died. The median serum erythropoietin level was 10.85 U/L and hemoglobin was 137 ± 16 g/L. Mortality rates were significantly higher in patients with higher erythropoietin levels (crude mortality rates in the highest to lowest erythropoietin tertiles were 51.7, 35.5, and 24.0 per 1000 patient-years, respectively [P = 0.008]). In unadjusted and also in adjusted Cox models each SD higher serum erythropoietin level significantly predicted all-cause mortality: HR1SD increase 1.22 and 1.28, respectively. In adjusted Cox models each SD higher serum erythropoietin/blood hemoglobin ratio also significantly predicted all-cause mortality: HR1SD increase 1.32. Serum erythropoietin predicted mortality in all analyzed subgroups.

Conclusions
In this sample of prevalent kidney transplant recipients, higher serum erythropoietin levels were associated with increased mortality.
Organotin(IV) complexes of carboxylic acid derivatives
Authors: Matela Garima , Aman Robina 
Published: October 2011

Abstract
A comprehensive review, >100 references, on organotin(IV) complexes of the carboxylic acid derivatives are presented with special reference to their methods of synthesis, spectroscopic and structural studies and their biological activities. The structures of these complexes are discussed on the basis of IR, multinuclear (1H-, 13C- and 119Sn-) NMR.
The influence of precursor’s composition and concentration on cadmium doped TiO2 film
Authors: Andronic Luminita , Duta Anca 
Published: October 2011

Abstract
The purpose of this article is to emphasize that new nanomaterials offer a number of attractive alternatives for solar energy use in wastewater photocatalysis. The wastewater from the textile industry contains dyes and heavy metals. Thin films of cadmium doped TiO2 (Cd-TiO2) were coated by a doctor blade using TiO2 Degussa P25 and cadmium precursor (cadmium nitrate). The photocatalytic efficiency of cadmium doped TiO2 is strongly influenced by crystal structure, particle size, particle morphology, porosity and doping. The pore size distribution and the roughness analysis have been studied by the atomic force microscopy (AFM) of the thin films. The photocatalytic activity of the samples was tested in Methyl orange and Methylene blue photodegradation. Cadmium doped TiO2 catalyst does not significantly decrease the efficiency of photodegradation processes, and, in some situations, improves dye photodegradation.
Erratum to: ”Selective separation of some ecotoxic transition metal ions from aqueous solutions using immobilized macrocyclic material containing solid phase extraction system”
Authors: Rahman Ismail , Furusho Yoshiaki , Begum Zinnat , Sabarudin Akhmad , Motomizu Shoji , Maki Teruya , Hasegawa Hiroshi 
Published: October 2011

Abstract
The original version of the article was published in Cent. Eur. J. Chem. 9(6) (2011), pp 1019–1026. Unfortunately, the original version of this article contains mistakes in the body of Fig. 1. Here we display the corrected version of the Fig. 1.
Richardson Extrapolation combined with the sequential splitting procedure and the θ-method
Authors: Zlatev Zahari , Faragó István , Havasi Ágnes 
Published: October 2011

Abstract
Initial value problems for systems of ordinary differential equations (ODEs) are solved numerically by using a combination of (a) the θ-method, (b) the sequential splitting procedure and (c) Richardson Extrapolation. Stability results for the combined numerical method are proved. It is shown, by using numerical experiments, that if the combined numerical method is stable, then it behaves as a second-order method.
Fibrinogen and cellular adherability on differently treated titanium as implants
Authors: Fojt Lukáš , Klapetek Petr , Strašák Luděk , Vetterl Vladimír 
Published: October 2011

Abstract
Adsorption of human plasma fibrinogen, osteoblasts, and fibroblasts on differently treated titanium samples as implants were examined in this study. Titanium samples were mechanically polished, chemically etched (with and without surface material loss), and grinded. The main goal of this study is to find the best surface treatment of titanium for its possible use as implants. Atomic force microscopy was used to evaluate the adsorption of human plasma fibrinogen onto the titanium samples. Cell counting was used to determine the adherability of osteoblasts and fibroblasts on the titanium samples. Our preliminary results show that the etched titanium surface with surface material loss is the best surface treatment used in our experiments.
Grandeurs et misères de l'allocation personnalisée d'autonomie en France
Authors: Hébert Réjean 
Published: October 2011

Le vieillissement de la population et la pandémie de maladies chroniques qui l’accompagne obligent à prioriser le financement des soins à long terme qui deviendront de plus en plus importants. De nombreux pays ayant fait face à cette situation ont mis sur pied un financement public distinct via une assurance universelle couvrant les soins à domicile et en institution comme c’est le cas en France avec l’Allocation personnalisée d’autonomie (APA). À la lumière des comparaisons internationales, nous identifions certaines lacunes de l’APA, notamment : la fragmentation des services, une évaluation qui n’utilise pas un outil suffisamment détaillé et validé, le rôle limité des équipes d’évaluation, l’insuffisance du plan d’aide, un ticket modérateur qui limite l’accessibilité et augmente le reste à charge, les problèmes liés à l’utilisation de l’emploi direct et la diversité importante des sources et des canaux de financement. L’APA mériterait d’être corrigée afin de rendre cette mesure de protection sociale plus performante et d’assurer sa pérennité dans un contexte financier difficile.
À quel âge est-on vieux ?
Authors: Ennuyer Bernard 
Published: October 2011

Âge chronologique, âge biologique, âge social, etc., l’âge a de multiples significations et représentations. Ces dernières renvoient d’abord, essentiellement à l’analyse de leur construction sociale et donc au fonctionnement social. Comment et pourquoi notre société classe et catégorise les individus quasi uniquement en fonction de leur âge, telle est donc notre interrogation. Dans une société française qui « vieillit » plutôt bien, mais qui reste, malgré tout, phobique de son vieillissement, « A quel âge est-on vieux ? » est une de ces questions dont la réponse se prête à toutes les manipulations possibles illustrant parfaitement la phrase célèbre de Pierre Bourdieu « l’âge est une donnée biologique socialement manipulée et manipulable ». Ces catégorisations et ces classements par âge qui touchent aussi bien les « jeunes » que les « vieux » sont , pour nous, des facteurs de ségrégation sociale et de réification des individus. L’assignation à « comportement d’âge » est une négation complète de la singularité et de l’essence même de l’être humain. Elle doit être combattue sans relâche !
Donner du temps pour les autres mais aussi pour soi
Authors: Malet Jacques , Bazin Cécile 
Published: October 2011

Aujourd’hui, quatre millions de Français de plus de 60 ans sont engagés bénévolement dans une association, voire dans plusieurs. Si l’on élargit l’observation aux autres sphères du bénévolat (dans les écoles, les mairies, les églises, les syndicats ou les partis politiques...), ils sont environ 6,7 millions : soit près d’un Français sur deux âgés de plus de 60 ans ! Soucieuses de jouer un rôle citoyen, utile aux autres, ces personnes engagées produisent du lien social, en même temps qu’elles donnent un sens à leur vie, trouvent un meilleur équilibre personnel, et peut-être même, selon de récentes études, une meilleure santé. Une belle convergence voit ainsi le jour entre une plus grande disponibilité, des volontés altruistes fortes, le souhait d’entretenir son propre épanouissement personnel et les attentes croissantes de la société telles que le soutien aux personnes les plus fragiles, la formation des jeunes, leur accompagnement dans des activités sportives, culturelles ou de loisirs... L’enjeu est fort au plan individuel comme au plan collectif. Il mérite que les pouvoirs publics et les partenaires sociauxle prennent en compte pour accompagner chacun dans cette étape de la vie.
Des technologies qui infantilisent et isolent ou des technologies créatrices de lien ?
Authors: Brugière Amandine 
Published: October 2011

Nous savons déjà que nous vivrons plus longtemps, et dans un monde encore plus connecté. Mais avons-nous vraiment réfléchi aux interférences entre ces deux tendances ? Il ne s'agit pas seulement de santé, de dépendance ou de maintien à domicile, mais aussi d'expérimenter d'autres formes d'activités, de relations, de services, de jeux, de projets collectifs qui s'adressent aux seniors comme aux autres, dans une société où cinq générations cohabiteront. Les réseaux numériques collaboratifs ont la capacité de devenir des médiateurs de reliance sociale.
Ticks on pastures and on two breeds of cattle in the Eastern Cape province, South Africa
Authors: Nyangiwe Nkululeko , Goni Sindisile , Hervé-Claude Louis P. , Ruddat Inga , Horak Ivan G. 
Published: October 2011

Many studies on the population dynamics of questing ticks on pastures and of parasitic ticks on cattle have been conducted. Few, however, have attempted to link the two in a single study. This study aimed to assess the population dynamics of questing ixodid ticks on pastures and of adult ticks on two breeds of cattle with different levels of susceptibility to tick infestation on the same pastures. Between January 2005 and December 2009 questing ixodid ticks were collected monthly from natural pastures at the Döhne Agricultural Development Institute and at the adjacent Campagna Production System in the Amahlathi District, Eastern Cape province, South Africa. Between February 2007 and January 2010 adult ticks were collected monthly from Bonsmara and Nguni cattle grazing these pastures. Ten tick species were collected from the pastures and 12 from the cattle. Significantly more questing larvae of Rhipicephalus appendiculatus, Rhipicephalus decoloratus, Rhipicephalus evertsi evertsi and Rhipicephalus microplus were recovered from the pastures grazed by Bonsmara cattle than from those grazed by Nguni cattle (p ≤ 0.05). Significantly more adult Hyalomma rufipes, Rhipicephalus follis, R. appendiculatus, R. decoloratus, R. evertsi evertsi and R. microplus were collected from the Bonsmara cattle than from the Nguni cattle (p ≤ 0.05). The study showed that Nguni cattle are less susceptible to tick infestation than are Bonsmara cattle and fewer questing ticks are collected from pastures grazed by Nguni cattle than by Bonsmara cattle.
Materials for Membrane Fuel Cells
Authors: Heinzel Angelika 
Published: October 2011

AbstractBrennstoffzellen als elektrochemische Energiewandler haben durch gezielte Materialentwicklung Anwendungsreife erlangt. Für die Membranbrennstoffzelle sind das insbesondere der ionenleitende, polymere Festelektrolyt, Edelmetall‐Nanokatalysatoren auf korrosionsstabilen Kohlenstoffträgermaterialien, Gasdiffusionsschichten mit ausgeklügeltem Porensystem sowie Werkstoffe für die Bipolarplatte, die für die Serienfertigung geeignet sind. Die Fortschritte der letzten Jahre auf dem Gebiet der Materialentwicklung sind beeindruckend und haben zu Brennstoffzellen mit hoher Leistungsdichte, einer guten Lebensdauer und mit robustem Betriebsverhalten geführt.