bluuebunny/crossref_metadata_2025_split huggingface dataset:
Mindfulness‐based cognitive therapy reduces chronic cancer‐related fatigue: a treatment study
Authors: van der Lee Marije L. , Garssen Bert 
Published: December 2010

AbstractIntroduction: About one‐third of cancer survivors suffer from severe chronic fatigue. Aim of this study was to evaluate the efficacy of mindfulness‐based cognitive group therapy in reducing severe chronic fatigue in cancer survivors with mixed diagnoses.Patients and Methods: Participants (n = 100) were randomly selected from a cohort and allocated to an intervention and a waiting list condition. Analyses were based on 59 participants in the intervention condition and 24 in the waiting‐list condition. Fatigue severity (Checklist Individual Strength), functional impairment (Sickness Impact Profile) and well being (Health and Disease‐Inventory) were assessed before and after the 9‐week intervention. The intervention group had a follow‐up 6 months following the intervention.Results: At post‐treatment measurement the proportion of clinically improved participants was 30%, versus 4% in the waiting list condition (χ2 (1) = 6.71; p = 0.007). The mean fatigue score at post‐measurement was significantly lower in the intervention group than in the waiting list group corrected for pre‐treatment level of fatigue. The mean well‐being score at post‐measurement was significantly higher in the intervention group than in the waiting list group corrected for pre‐treatment level of well‐being. The treatment effect was maintained at 6‐month follow‐up. No difference between the two conditions was found in functional impairment.Discussion: Mindfulness‐based cognitive therapy is an effective treatment for chronic cancer‐related fatigue. Copyright © 2010 John Wiley & Sons, Ltd.
Being active or flexible? Role of control coping on quality of life among patients with gastrointestinal cancer
Authors: Cheng Cecilia , Chan Nga‐yan , Chio Jasmine Hin‐man , Chan Pierre , Chan Annie On‐on , Hui Wai‐mo 
Published: December 2010

AbstractObjectives: This study examined the link between coping and quality of life among patients with gastrointestinal (GI) cancer. Two hypotheses were tested. The active‐personality hypothesis states that quality of life is associated with the predominant use of primary control coping (PCC) in general. The situational‐flexibility hypothesis states that quality of life is related to flexible deployment of PCC and secondary control coping (SCC) according to situational controllability.Methods: Participants were 180 Chinese adult patients diagnosed with colon or liver cancer. Their perceived controllability of stressors, coping, and quality of life were compared with those of a sex‐and age‐matched community sample.Results: Three groups with distinct coping patterns were identified: (a) a flexible group characterized by the use of PCC in controllable situations but SCC in uncontrollable situations, (b) an active group characterized by predominant use of PCC in most situations, and (c) a passive group characterized by predominant use of SCC or avoidant coping in most situations. Patients in the active and the flexible groups had higher perceived controllability and psychological well‐being scores than those in the passive group.Conclusions: Our results provide support for both the active‐personality and the situational‐flexibility hypotheses among GI cancer patients. Clinical and research implications of the findings are discussed. Copyright © 2010 John Wiley & Sons, Ltd.
Dysplasia severity, but not experiences during colposcopy, predicts adherence to follow‐up colposcopy
Authors: Kola Susanna , Walsh Jane C. 
Published: December 2010

AbstractObjective: Patient adherence with treatment recommendations is an essential factor for the effectiveness of cervical cancer screening programs. Psychological factors may play a role in patient adherence to cervical cancer screening. The present study aimed to extend knowledge of women's adherence to follow‐up colposcopy, by examining possible predictive biopsychosocial variables measured at colposcopy and objective attendance rates from patients' medical files.Methods: Baseline data on psychosocial factors (e.g. demographic variables, state anxiety, and pain) were collected from 141 women prior to undergoing colposcopy for the first time (M age = 29.63, SD = 8.39). Experiences of colposcopy and adherence to follow‐up (within two years) were assessed subsequently.Results: There were no associations between adherence and demographic variables. Women with severe dysplasia were more likely to adhere to follow‐up colposcopy than women with other histology grades. Women who did not attend for follow‐up reported significantly greater state anxiety and pain unpleasantness following colposcopy than women who did attend. A multivariate logistic regression analysis revealed that the psychological experiences of colposcopy did not predict adherence status. However, dysplasia severity made a significant contribution to the model. The odds of adhering to colposcopy for patients with severe dysplasia were 3.57 times higher than for patients with normal histology, and 4.35 times higher than for patients with moderate dysplasia (p = 0.005).Conclusions: Colposcopy‐related experiences do not appear to be strong predictors of adherence, but women with dysplasia grades other than ‘severe’ should be targeted for follow‐up recommendations and advice. Copyright © 2010 John Wiley & Sons, Ltd.
Analysis of quantum levels for self‐assembled InGaAsN/GaP quantum dots
Authors: Fukami F. , Umeno K. , Furukawa Y. , Urakami N. , Mitsuyoshi S. , Okada H. , Yonezu H. , Wakahara A. 
Published: December 2010

AbstractWe develop the design method of luminescence device with the strained quantum dots (QDs) on Si using a theoretical analysis on realistic structure. We have calculated numerically the first electron and heavy‐hole quantum levels of self‐assembled InGaAsN/GaP QDs using the finite element method, the model‐solid theory and the band‐anticrossing model. The calculation results indicate that N incorporation into InGaAs QDs drastically reduces the conduction band minimum (∼120 meV/N at%), and that it is shown enough energy difference between the first electron‐quantum level and GaP X‐state when N composition is 1∼2%. For self‐assembled In0.5Ga0.5As0.99N0.01/GaP QDs, the calculated transition energy at room temperature (RT) nearly matches with the measured photoluminescence (PL) peak energy. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Growth of AlPN by solid source molecular beam epitaxy
Authors: Kawai Tsuyoshi , Yamane Keisuke , Furukawa Yuzo , Okada Hiroshi , Wakahara Akihiro 
Published: December 2010

AbstractWe reported the growth of AlPN by solid source molecular beam epitaxy (MBE). N content in AlPN showed less temperature dependence than GaPN. The surface morphology degraded at lower growth temperatures even though the N contents were almost the same. A cross‐sectional transmission electron microscopy (X‐TEM) image revealed that the surface roughening leads to stacking faults. In the case of films grown above 600 °C, atomically smooth surface was obtained. A dislocation‐free AlPN layer with abrupt GaP/AlPN heterointerface was obtained (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Density functional theory for green chemical catalyst supported on S‐terminated GaN(0001)
Authors: Yokoyama Mami , Tsukamoto Shiro , Ishii Akira 
Published: December 2010

AbstractA novel function of nitried‐based semiconductor is suc‐ cessfully developed for organic synthesis, in which palladium supported on the surface of S‐terminated GaN(0001) serves as a unique green chemical catalyst.In this study we determined the structure of Pd‐catalyst supported on Sterminated GaN(0001) surface by means of the density functional theory (DFT) within a Local Density Approximation (LDA).The important role of S on the case of GaN substrate is to make the number of the valence electron to be close to0, in contrust to the case of GaAs (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
MnSb‐based spin LED with side‐wall emission
Authors: Terui W. , Munekata H. , Hanna T. , Yoshida D. 
Published: December 2010

AbstractCombination of the spin‐dependent optical transition and the spin current would lead us to the opportunity of developing photo‐ and light‐emitting diodes that respectively senses and emits circularly polarized light. Here, we describe preparation of spin LED consisting of an epitaxial MnSb spin injection layer and GaAs‐AlGaAs double hetero‐structures, and show characteristics of EL from a side wall emission. Taking advantage of remnant state of ferromagnet, circular polarization emission has been realized without application of an external field. Demonstration of electrical switching of circular polarization has been carried out with alternative switching between two spin‐LEDs having antiparallel magnetization configuration. While the technique used in the present demonstration was a crude one, it certainly show the feasibility of building a compact and robust light source whose circular polarization is controlled electrically. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Study of the conduction‐type conversion in Si‐doped (631)A GaAs layers grown by molecular beam epitaxy
Authors: Cruz‐Hernández E. , Vázquez‐Cortés D. , Shimomura S. , Méndez‐García V. H. , López‐López M. 
Published: December 2010

AbstractWe report the Si‐doping of GaAs (631)A layers grown by molecular beam epitaxy under different As overpressure. From Hall effect measurements, we have found that the increase of the As pressure induces conduction conversion from p‐ to n‐type, which is presumably related to lattice site switching of Si occupying an As site (where Si is acceptor) to a Ga site (where Si acts as a donor). This conversion is also studied by photoluminescence (PL) spectroscopy. The sharp conductivity conversion, at a critical As pressure value of 1.4‐1.7 x 10‐5 mbar is reflected in the optical properties of the samples by a change of As vacancy defects into pairs of Ga vacancy and Ga antisite defects. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Photocurrent characteristics in p‐i‐n diodes with built‐in coupled or uncoupled multi‐quantum wells
Authors: Noda Takeshi , Mano Takaaki , Sakoda Kazuaki , Sakaki Hiroyuki 
Published: December 2010

AbstractWe studied photocurrent characteristics in AlGaAs p‐i‐n diodes, where coupled or uncoupled GaAs/AlGaAs multi‐quantum wells (MQWs) were embedded in their intrinsic layers, to investigate how the electronic–coupling in the MQWs affects the device performance of MQW‐based solar cells. Measurements were done at 77 K to suppress thermal processes. When carriers were generated only in QWs, the photocurrent (PC) in the coupled MQW sample decreased substantially as soon as the forward‐bias voltage V is raised above ∼0.5 V and became almost zero at V ∼1 V. By contrast, in the uncoupled MQW sample the PC did not exhibit such a step‐like decrease but only gradually decreased up to V ∼1.2 V. This step‐like loss in PC observed in the coupled MQW structure is presumably attributable to the accumulation of photogenerated carriers in its MQW region. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
In vitro anti HSV‐1 and HSV‐2 activity of Tanacetum vulgare extracts and isolated compounds: An approach to their mechanisms of action
Authors: Álvarez Ángel L. , Habtemariam Solomon , Juan‐Badaturuge Malindra , Jackson Caroline , Parra Francisco 
Published: December 2010

AbstractHerpes simplex viruses (HSV‐1 and HSV‐2) are responsible for long‐term latent infections in humans, with periods of recurring viral replication associated to lesions around the lips, eyes, mucous membrane of the oral cavity or the genitals. The lack of an effective vaccine, the moderate to high toxicity of the available synthetic antiherpes compounds and the appearance of resistant viral strains emphasize the need for new inhibitors. Tanacetum vulgare, commonly known as tansy, has been used for treating rheumatic pain, skin eruption and diuretic conditions as well as an anthelmintic, antihypertensive, stimulant, emmenagogue, carminative, antiseptic, antihypertensive, antispasmodic and antioxidant agent. The anti HSV‐1 activity of tansy aerial parts, ethyl acetate extract and the isolated compound parthenolide, has been reported recently. In this work, through a comprehensive mechanistic‐based antiherpetic activity study, it was revealed that constituents other than parthenolide are responsible for the antiviral activity of tansy. Copyright © 2010 John Wiley & Sons, Ltd.
A comparative study of phase II robust multivariate control charts for individual observations
Authors: Chenouri Shoja'eddin , Variyath Asokan Mulayath 
Published: December 2010

AbstractUse of Hotelling's T2 charts with high breakdown robust estimates to monitor multivariate individual observations are the recent trend in the control chart methodology. Vargas (J. Qual. Tech. 2003; 35: 367‐376) introduced Hotelling's T2 charts based on the minimum volume ellipsoid (MVE) and the minimum covariance determinant (MCD) estimates to identify outliers in Phase I data. Studies carried out by Jensen et al. (Qual. Rel. Eng. Int. 2007; 23: 615‐629) indicated that the performance of these charts heavily depends on the sample size, amount of outliers and the dimensionality of the Phase I data. Chenouri et al. (J. Qual. Tech. 2009; 41: 259‐271) recently proposed robust Hotelling's T2 control charts for monitoring Phase II data based on the reweighted MCD (RMCD) estimates of the mean vector and covariance matrix from Phase I. They showed that Phase II RMCD charts have better performance compared with Phase II standard Hotelling's T2 charts based on outlier free Phase I data, where the outlier free Phase I data were obtained by applying MCD and MVE T2 charts to historical data. Reweighted MVE (RMVE) and S‐estimators are two competitors of the RMCD estimators and it is a natural question whether the performance of Phase II Hotelling's T2 charts with RMCD and RMVE estimates exhibits similar pattern observed by Jensen et al. (Qual. Rel. Eng. Int. 2007; 23: 615‐629) in the case of MCD and MVE‐based Phase I Hotelling's T2 charts. In this paper, we conduct a comparative study to assess the performance of Hotelling's T2 charts with RMCD, RMVE and S‐estimators using large number of Monte Carlo simulations by considering different data scenarios. Our results are generally in favor of the RMCD‐based charts irrespective of sample size, outliers and dimensionality of Phase I data. Copyright © 2010 John Wiley & Sons, Ltd.
Delay‐dependent robustH∞controller synthesis for discrete singular delay systems
Authors: Feng Zhiguang , Lam James , Gao Huijun 
Published: December 2010

AbstractIn this paper, the problems of delay‐dependent robust stability analysis, robust stabilization and robustH∞control are investigated for uncertain discrete‐time singular systems with state delay. First, by making use of the delay partitioning technique, a new delay‐dependent criterion is given to ensure the nominal system to be regular, causal and stable. This new criterion is further extended to singular systems with both delay and parameter uncertainties. Then, without the assumption that the considered systems being regular and causal, robust controllers are designed for discrete‐time singular time‐delay systems such that the closed‐loop systems have the characteristics of regularity, causality and asymptotic stability. Moreover, the problem of robustH∞control is solved following a similar line. The obtained results are dependent not only on the delay, but also on the partitioning size and the conservatism is non‐increasing with reducing partitioning size. These results are shown, via extensive numerical examples, to be much less conservative than the existing results in the literature. Copyright © 2010 John Wiley & Sons, Ltd.
ℋ︁2/ℋ︁∞ output information‐based disturbance attenuation for differential linear repetitive processes
Authors: Paszke Wojciech , Rogers Eric , Gałkowski Krzysztof 
Published: December 2010

AbstractRepetitive processes propagate information in two independent directions where the duration of one is finite. They pose control problems that cannot be solved by application of results for other classes of 2D systems. This paper develops controller design algorithms for differential linear processes, where information in one direction is governed by a matrix differential equation and in the other by a matrix discrete equation, in an ℋ︁2/ℋ︁∞ setting. The objectives are stabilization and disturbance attenuation, and the controller used is actuated by the process output and hence the use of a state observer is avoided. Copyright © 2010 John Wiley & Sons, Ltd.
Insomnia severity, combat exposure and mental health outcomes
Authors: Wright Kathleen M. , Britt Thomas W. , Bliese Paul D. , Adler Amy B. 
Published: December 2010

AbstractFew studies have examined insomnia severity as a moderator of the impact of combat experiences on posttraumatic stress disorder (PTSD) and alcohol problems, such that combat exposure is expected to have more negative consequences for soldiers who report insomnia. In this study, a sample of 522 military personnel completed measures of PTSD and alcohol problems prior to a 12‐month deployment to Iraq, and then completed measures assessing insomnia severity, combat exposure, PTSD, alcohol problems and overall distress 3 months post‐deployment. Results of a moderated multiple regression indicated that insomnia severity interacted with combat exposure to predict PTSD and alcohol problems after controlling for pre‐deployment baseline measures of these outcomes, such that the relationship between combat exposure and the mental health symptoms was stronger when insomnia severity was greater. Results are discussed from the perspective of the role of insomnia in the development of PTSD and alcohol problems, as well as from an occupational health perspective where insomnia may deprive individuals of the resources they need to recover from the effects of severe occupational stressors found in high risk occupations. Published in 2010 by John Wiley & Sons, Ltd.
Phase transition in spatial epidemics using cellular automata with noise
Authors: Sun Gui‐Quan , Jin Zhen , Song Li‐Peng , Chakraborty Amit , Li Bai‐Lian 
Published: December 2010

AbstractOne of the central issues in studying the complex population patterns observed in nature is the role of stochasticity. In this paper, the effects of additive spatiotemporal random variations—noise—are introduced to an epidemic model. The no‐noise model exhibits a phase transition from a disease‐free state to an endemic state. However, this phase transition can revert in a resonance‐like manner depending on noise intensity when introducing nonzero random variations to the model. On the other hand, given a regime where disease can persist, noise can induce disappearance of the phase transition. The results obtained show that noise plays a tremendous role in the spread of the disease state, which has implications for how we try to prevent, and eventually eradicate, disease.
Transienter neonataler Diabetes und Hypomethylierungssyndrome
Authors: Bens S. , Siebert R. , Caliebe A. 
Published: December 2010

Zusammenfassung
Der transiente neonatale Diabetes (TNDM) ist definiert als Manifestation einer diabetogenen Stoffwechsellage in den ersten Lebenswochen und Normalisierung des Glukosestoffwechsels bis zum 18. Lebensmonat. Zu den klinischen Kardinalsymptomen zählen intrauterine Wachstumsverzögerung, Hyperglykämie und Dehydratation bei fehlender Ketoazidose. Die Ätiologie des TNDM ist sehr heterogen. In 70% der Fälle ist die Erkrankung mit Aberrationen in der Chromosomenregion 6q24 assoziiert. Diese Chromosomenregion enthält die genomisch geprägten Gene PLAGL1/ZAC und HYMAI. Durch eine paternale uniparentale Disomie 6 (upd(6)pat), eine paternale Duplikation der geprägten Region in 6q24 oder durch Imprintingdefekte des maternalen Allels kommt es zu einer Überexpression des paternal exprimierten Gens PLAGL1. Imprintingdefekte können isoliert oder im Rahmen eines Hypomethylierungssyndroms mit Beteiligung mehrerer geprägter Loci des Genoms auftreten. Hypomethylierung an multiplen Loci wurde bis jetzt bei Patienten mit TNDM, Silver-Russell-Syndrom (SRS) und Beckwith-Wiedemann-Syndrom (BWS) beobachtet. Das Wiederholungsrisiko hängt wesentlich von der Ursache des TNDM an. Chromosomale Aberrationen der Eltern unter Beteiligung des Chromosoms 6 erhöhen das Risiko sowohl für eine UPD des geprägten Bereichs in 6q24 als auch für eine paternale Duplikation. Jedoch entstehen sowohl UPD als auch Duplikationen zumeist de novo.
Prader-Willi-Syndrom und Angelman-Syndrom
Authors: Albrecht B. , Buiting K. 
Published: December 2010

Zusammenfassung
Das Prader-Willi-Syndrom (PWS) und das Angelman-Syndrom (AS) sind distinkte neurogenetische Erkrankungen, die durch den Funktionsverlust geprägter Gene in der Region 15q11q13 hervorgerufen werden. Ein etwa 2 Mb großer Bereich in 15q11q13 unterliegt einer elternspezifischen Prägung („genomic imprinting“). Infolge der Prägung unterscheiden sich die väterliche und mütterliche Kopie dieses Bereichs in der DNA-Methylierung und der Genexpression. Die häufigsten Ursachen für PWS und AS sind eine 5–7 Mb große interstitielle Deletion in der chromosomalen Region 15q11q13, eine uniparentale Disomie 15, ein Imprintingdefekt oder im Fall von AS eine Mutation im UBE3A-Gen. Mikrodeletionen bei einer kleinen Anzahl von Patienten mit einem Imprintingdefekt haben zur Identifizierung eines Imprinting-Centers (IC) „upstream“ vom SNURF-SNRPN-Gen geführt, das die Imprintumschaltung in cis reguliert. Das IC hat eine zweiteilige Struktur: Einen zentromerischen Teil, der bei Patienten mit AS deletiert ist und für die mütterliche Prägung notwendig ist, und einen telomerischen Teil, der bei Patienten mit PWS deletiert ist und der für die Aufrechterhaltung der väterlichen Prägung notwendig ist.