bluuebunny/crossref_metadata_2025_split huggingface dataset:
Role of the apparent diffusion coefficient in the differential diagnosis of gastric wall thickening
Authors: Onur Mehmet Ruhi , Ozturk Fatma , Aygun Cem , Poyraz Ahmet Kursad , Ogur Erkin 
Published: May 2012

AbstractPurpose:To evaluate the role of the apparent diffusion coefficient (ADC) measurement made using diffusion‐weighted magnetic resonance imaging (DWMRI) in the differential diagnosis of benign and malignant gastric wall thickening.Materials and Methods:Axial T2‐weighted and DWMRI at b 600 and b 1000 s/mm2 gradients were performed in 94 patients (44 patients with gastric malignancy and 50 patients with benign gastric diseases) with gastric wall thickening which was detected by multidetector computed tomography (MDCT). The ADC values of the gastric lesions and healthy gastric walls in patients with gastric malignancies and in patients with benign gastric diseases were used in the differential diagnosis of benign and malignant lesions of the stomach.Results:The mean ADC values were lower in patients with gastric malignancies (1.62 ± 0.57 and 1.40 ± 0.33 at b 600 and b 1000, respectively) compared to those with healthy gastric walls (2.95 ± 0.59 and 2.18 ± 0.48) and benign gastric diseases (3.08 ± 0.52 and 2.34 ± 0.42) at b 600 and b 1000 gradients (P < 0.0001).Conclusion:The ADC measurement on DWMRI may be used to differentiate between benign and malignant gastric diseases. J. Magn. Reson. Imaging 2012;36:672–677. © 2012 Wiley Periodicals, Inc.
Interrater reliabilities for two measures of nursing care quality
Authors: Ventura Marlene R. , Hageman Paul T. , Slakter Malcolm J. , Fox Richard N. 
Published: May 2012

AbstractThe intraclass correlation coefficient (ICC) was used to estimate the interrater reliability for two instruments designed to measure the quality of nursing care. The two instruments tested were the Quality Patient Care Scale (QualPacs) and the Methodology for Monitoring Quality of Nursing Care (Rush‐Medicus instrument). The following minimal standards were proposed for evaluating the results of interrater reliability: (a) the ICC estimate obtained must have a value of at least .75, and (b) the 95% confidence interval should not include zero, in order to ensure that the obtained value differs from zero in a nonchance fashion. The results demonstrated that the QualPacs instrument did not meet these criteria in any instance for the six subscales and one total‐scale score for two sets of observers in two replications. The Rush‐Medicus instrument met the criteria in only 12 of 20 instances of testing (five of the six subscales for two sets of observers in two replications). The authors highly recommend the routine performance of interrater reliability testing using the ICC prior to and during data collection and acceptance of the minimal standards of empirical verification suggested previously.
Elements and outcomes of a postpartum support group program
Authors: Cronenwett Linda R. 
Published: May 2012

AbstractQuestionnaires were sent to 90 women who had participated in a lay postpartum support group program to determine (a) the characteristics of the women who used this form of support, (b) the needs met by the group, (c) the types of discussions most meaningful to group members, and (d) the factors that influenced the group's effectiveness in providing support. Sixty‐six questionnaires were returned. The respondents were older, better educated, and more affluent than a random sample of childbearing women. They joined the group primarily to meet other women going through the same experience with whom they could share ideas and feelings. The most meaningful discussions for these women focused on personal issues rather than infant‐related issues. The presence of babies at group meetings adversely affected the regularity of attendance. Women who worked outside the home were significantly more likely to continue meeting with the group for over a year. Only 7 women thought the group would have been better for them if their husbands had been present.
Comparative analysis of nonverbal interpersonal communication of schizophrenics and normals
Authors: Hardin Sally Brosz 
Published: May 2012

AbstractThe nonverbal communications of schizophrenics and normals in dyadic interactions were analyzed and compared. Twelve purposively selected women were videotaped in normal‐normal, normal‐schizophrenic, and schizophrenic‐schizophrenic communication acts for 30 minutes. Using a PLATO IV computer program and a modified Kendon Kinesic Notation System, a priori sets of nonverbal behaviors were recorded at 1‐second intervals. Frequency and duration scores for the sets of nonverbal behaviors with corresponding communication meanings were totaled. A nested analysis of variance showed that the three groups differed significantly (p < .05) in engagement and defensiveness and that the normal interactors were the least imitative of the three groups. An analysis and description of the patterns of nonverbal communication also revealed differences, lending support to the theory of dysjunctive schizophrenic communication.
Cycle‐phase changes in perceived stress in women with varying levels of premenstrual symptomatology
Authors: Brown Marie Annette , Lewis Linda L. 
Published: May 2012

AbstractStress has been documented as a critical factor in understanding a variety of health problems. This study was designed to examine the relationships between symptom severity and perceived stress in women with varying severity levels of premenstrual symptoms. Perceived stress was evaluated before and after menstruation in 104 women. Women who had high levels of premenstrual symptomatology demonstrated significantly greater perceived stress in the premenstrual phase compared to the postmenstrual phase, while women with low levels of premenstrual symptomatology showed no cycle‐phase difference.
Mothers' self‐reports of parenthood across the first 6 months postpartum
Authors: Grace Jeanne T. 
Published: May 2012

AbstractA postpartum measure, What Being the Parent of a New Baby is Like, was administered to explore the development of maternal role for mothers (N = 76) at 1, 3, 4 1/2, and 6 months postpartum. Individual differences were relatively stable across time and accounted for much more variance than time effects. Mean scores on the Centrality (of baby) and Help (with parenting tasks) subscales decreased over time, and Evaluation (satisfaction with role performance) and Lifechange subscale scores increased. Primiparas demonstrated the steepest mean increase in Evaluation scores over time. Mean Evaluation scores for first‐(n = 29) and second‐time mothers (n = 33) were similar, but mothers of three or more children (n = 14) had significantly higher scores. Parity was also related inversely to amount of life change, and maternal education was related inversely to Evaluation and Centrality scores. Demographic, subscale, and contextual variable interrelationships were generally consistent with maternal role adaptation theory. Findings also suggest that parity effects are more complex than a dichotomous primipara/multipara representation.
The moderating effects of dispositional affectivity on relationships between job characteristics and nurses' job satisfaction
Authors: Agho Augustine O. 
Published: May 2012

AbstractUsing the job satisfaction model embedded in the Price‐Mueller nurse turnover model, the moderating effects of positive affectivity (PA) and negative affectivity (NA) on the relationships between the seven independent variables in the model and job satisfaction were examined. Multiple regression procedure was used to analyze data collected from 162 nursing employees of a 327‐bed Veterans Administration Medical Center. The major determinants of job satisfaction were found to be routinization, instrumental communication, and PA. The impact of participation, instrumental communication, integration, distributive justice on job satisfaction were found to be moderated by PA. NA moderated the impact of promotional opportunity on job satisfaction. These predictors, in conjunction with demographic variables, explained 45% of the variance of job satisfaction.
Men in academic school psychology: A national survey
Authors: Little Steven G. , Akin‐Little Angeleque , Palomares Ronald S. , Eckert Tanya L. 
Published: May 2012

AbstractThere is a paucity of research examining the experiences and perceptions of men employed as school psychology academicians. The purpose of this investigation was to ascertain male school psychology academicians' perceptions of their respective academic climates, levels of support, incidences of harassment, and levels of stress, and to compare these results with a previous survey conducted with women in similar positions. A total of 146 male school psychology academicians (41% response rate) completed the 48‐item survey entitled, “Men in School Psychology: Academia Questionnaire.'' The findings suggested that men were more likely than women to indicate that climate and opportunities within their department were equal, whereas women indicated that the climate and opportunities tend to favor men. When men indicated that inequalities exist, they reported believing that women were favored. Results are discussed in terms of implications for faculty in school psychology. © 2012 Wiley Periodicals, Inc.
Tracheostomy placement in infants with bronchopulmonary dysplasia: Safety and outcomes
Authors: Mandy George , Malkar Manish , Welty Stephen E. , Brown Rachel , Shepherd Edward , Gardner William , Moise Alicia , Gest Alfred 
Published: May 2012

AbstractOptimizing the timing and safety for the placement of a tracheostomy in infants with bronchopulmonary dysplasia (BPD) has not been determined. The purpose of the present study was to describe the data from a single institution about the efficacy and safety of tracheostomy placement in infants with BPD needing long‐term respiratory support. We established a service line for the comprehensive care of infants with BPD and we collected retrospective clinical data from this service line. We identified patients that had a trachostomy placed using the local Vermont‐Oxford database, and obtained clinical data from chart reviews. We identified infants who had a tracheostomy placed for the indication of severe BPD only. Safety and respiratory efficacy was assessed by overall survival to discharge and the change in respiratory supportive care from just before placement to 1‐month post‐placement. Twenty‐two patients (750 ± 236 g, 25.4 ± 2.1 weeks gestation) had a tracheostomy placed on day of life 177 ± 74 which coincided with a post‐conceptual age of 51 ± 10 weeks. At placement these infants were on high settings to support their lung disease. The mean airway pressure (MAP) was 14.3 ± 3.3 cmH2O, the peak inspiratory pressure was 43.7 ± 8.0 cmH2O, and the FiO2 was 0.51 ± 0.13. The mean respiratory severity score (MAP × FiO2) 1 month after tracheostomy was significantly (P = 0.03) lower than prior to tracheostomy. Survival to hospital discharge was 77%. All patients with tracheostomies that survived were discharged home on mist collar supplemental oxygen. In conclusion, the high survival rate in these patients with severe BPD and the decreased respiratory support after placement of a tracheostomy suggests that high ventilatory pressures should not be a deterrent for placement of a tracheostomy. Future research should be aimed at determining optimal patient selection and timing for tracheostomy placement in infants with severe BPD. Pediatr Pulmonol. 2013; 48:245–249. © 2012 Wiley Periodicals, Inc.
Longitudinal lung function and structural changes in children with primary ciliary dyskinesia
Authors: Magnin Marie Lémery , Cros Pierrick , Beydon Nicole , Mahloul Malika , Tamalet Aline , Escudier Estelle , Clément Annick , Le Pointe Hubert Ducou , Blanchon Sylvain 
Published: May 2012

AbstractBackground and ObjectivesFunctional and structural lung evaluations are part of the follow‐up of patients with primary ciliary dyskinesia (PCD). We aimed to evaluate transversal and longitudinal relationships between lung function test (LFT) and chest computed tomography (CT) in children with PCD, in stable clinical condition.Materials and MethodsData from children followed in the French National Center were retrospectively collected. Inclusion criteria were (i) definitive diagnosis of PCD, (ii) age less than 15 years at the beginning of follow‐up, (iii) at least 8 years of follow‐up, (iv) at least two couples of concurrent CT and LFT available in a phase of clinical stability of the lung disease without modification of the treatment regimen in the last 4 weeks. Twenty children (median age at entry 4.6 years, median follow‐up 15.4 years) were included. Concurrent LFT (blood gas and spirometry) and CT (score) results were recorded.ResultsLFT indices (PaO2 (n = 210), FVC, FEV1, FEF2575% (n = 195)) significantly decreased with age, and the mean annual decrease (z‐score (% predicted)) was −0.17 (−0.49%), −0.09 (−0.50%), −0.10 (−0.89%), and −0.07 (−1.73%), respectively. First CT (median age 8.7 years) revealed bronchiectasis (70%), mucous plugging (70%), peribronchial thickening (90%), parenchymal abnormalities (65%), and hyperinflation (50%). CT scores (n = 74) significantly increased with age, and was negatively correlated to PaO2, FVC, FEV1, and FEF2575% longitudinal changes.ConclusionIn stable clinical condition, functional, and structural progressive impairments significantly correlated in children with PCD. Further prospective studies, including large populations of patients with various levels of disease severity, are needed to confirm whether lung function follow‐up can be used to adjust CT frequency and help at minimizing the radiation burden in children with a good life expectancy. Pediatr Pulmonol. 2012. 47:816–825. © 2012 Wiley Periodicals, Inc.
Intractable cough in a preterm infant with ventriculoperitoneal shunt
Authors: Bar‐Yoseph Ronen , Livnat Galit , Guilburd Joseph , Vachyan Arcady , Ilivitzky Anat , Bentur Lea 
Published: May 2012

AbstractWe describe the case of an 8‐month‐old preterm female with a ventriculoperitoneal (VP) shunt who had an intractable resistant cough of three months duration without any identifiable cause. Reposition of the abdominal part of the VP shunt resulted in an immediate and lasting resolution of the cough. This is the first case report describing an infradiaphragmatic irritation as an etiology for persistent cough with ultimate resolution upon reposition of the shunt. Pediatr Pulmonol. 2013; 48:405–407. © 2012 Wiley Periodicals, Inc.
Optical characterization of Zn0.35Cd0.44Mg0.21Se crystalline alloy by polarization‐dependent contactless electroreflectance measurements
Authors: Dumcenco Dumitru , Levcenco Sergiu , Huang Ying‐Sheng , Hsu Hung‐Pin , Firszt Franciszek , Tiong Kwong‐Kau 
Published: May 2012

AbstractAn optical study of wurtzite Zn0.35Cd0.44Mg0.21Se crystalline alloy grown by the modified high‐pressure Bridgman method was carried out by polarization‐dependent contactless electroreflectance (CER) and temperature‐dependent photoluminescence (PL) in the temperature range of 10–300 K. The CER experiment revealed three well known wurtzite crystal lattice related excitonic features A, B, and C in the vicinity of band edge. The excitonic features A and B showed polarization‐dependent character, where both A and B excitons are present for E⊥c polarization and only B exciton is observed for E‖c polarization. Low temperature PL spectra of the investigated sample consisted of the excitonic line, the “edge emission” due to radiative recombination of shallow donor‐acceptor pairs and a broad band related to recombination through deep level defects. In addition, the transition energies and broadening parameters of the band‐edge excitonic transitions were evaluated and discussed. (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Fabrication of radiation imaging detector arrays using MOVPE grown thick single crystal CdTe layers on Si substrate
Authors: Yasuda K. , Niraula M. , Tachi T. , Fujimura N. , Inuzuka H. , Kondo T. , Namba S. , Muramatsu S. , Agata Y. 
Published: May 2012

AbstractWe present fabrication process of two‐dimensional (2D) energy discriminating pixel‐type imaging arrays. Each pixel in the array possesses a p‐CdTe/n‐CdTe/n+‐Si heterojunction diode structure. The array is fabricated using metalorganic vapour‐phase epitaxy grown thick layers of single crystal CdTe on (211)Si substrates. In order to avoid the charge sharing problem among the adjacent pixels, we used a mechanical saw based pixel pattering technique, which produced pixels that are isolated from each other by narrow vertical trenches. Preliminary evaluation with room‐temperature reverse biased dark current values exhibited uniform response from the entire pixels in the array. This opens a new possibility for developing large‐area imaging arrays in a simple and efficient way. (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Photoluminescence studies of CdS layers for solar cells
Authors: Gemain Frédérique , Robin Ivan‐Christophe , Renet Sébastien , Bernardi Sergio 
Published: May 2012

AbstractPhotoluminescence (PL) measurements were performed on polycrystalline CdS films grown by close space sublimation (CSS) or by chemical bath deposition (CBD) in order to observe the evolution of emission features according to the deposition technique and post‐deposition treatments. CdS is naturally n‐type because of the presence of sulphur vacancies and in most of the observed samples, a donor‐acceptor pair involving the sulfur vacancies could be identified at 1.65 eV. Different complexes emissions could be identified depending on the deposition technique and post‐growth treatment. The best efficiencies were measured on CdTe/CdS based solar cells for which the CdS layer presents an excitonic donor bound PL peak as well as an emission corresponding to interstitial cadmium (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Recent developments with live‐attenuated recombinant paramyxovirus vaccines
Authors: Bayon Jean‐Christophe Le , Lina Bruno , Rosa‐Calatrava Manuel , Boivin Guy 
Published: May 2012

SUMMARYThere is no vaccine currently approved for paramyxovirus‐induced respiratory diseases in humans, despite their major clinical importance. We review the development and evaluation of new vaccine strategies based on live‐attenuated chimeric and recombinant vaccines against human respiratory syncytial virus, human metapneumovirus and human parainfluenza viruses types 1 to 3, which are significant causes of upper and lower tract respiratory diseases. Most promising strategies are based on virus attenuation through (i) mutations in key genes involved in replication; (ii) deletion of accessory genes; or (iii) the use of a corresponding animal viral vector, such as bovine parainfluenza type 3 and Sendai virus, as a background for the expression of a viral glycoprotein. Indeed, the fusion (F), or attachment (HN/H/G) glycoproteins are the most immunogenic antigens in paramyxoviruses. For each strategy, we will review the immunogenicity (increase in neutralising antibody titres) and the protection conferred by the most promising recombinant vectored vaccines and list ongoing clinical trials. We will conclude by discussing the most important challenges regarding the introduction of such vaccines into immunisation programmes. Copyright © 2012 John Wiley & Sons, Ltd.
EROSION OF RIVER SANDBARS BY DIURNAL STAGE FLUCTUATIONS IN THE COLORADO RIVER IN THE MARBLE AND GRAND CANYONS: FULL‐SCALE LABORATORY EXPERIMENTS
Authors: Alvarez L. V. , Schmeeckle M. W. 
Published: May 2012

ABSTRACTThis research examines the mass failure and seepage erosion of sandbars due to rapid fluctuations in river stage using a full‐scale laboratory model. Hydroelectric dams operated to provide electricity at peak demand produce rapid river stage fluctuations. During decreasing river stage, the groundwater table becomes higher than the river stage, increasing pore water pressures and exfiltrating groundwater. This can cause seepage erosion and mass failures in the banks and bars. In the Colorado River in the Marble and Grand Canyons, maximal downramp and upramp rates have been imposed on the Glen Canyon Dam operations. Our experiments research the efficacy of these discharge ramp rate restrictions to reduce sandbar erosion. The laboratory model consists of a two‐dimensional sandbar face (8 m long, 2.5 m high and 0.5 m wide). Multiple experiments were conducted in a range of slopes, varying from 12° to 26°. An analysis of historical and current ramp rates at 47 locations along the river provided the basis of laboratory downramp rates in the range from 0.1 to 0.6 m h−1. Results show that bank stability is reached at a slope of approximately 14°. The erosion of intermediate slopes (18° – 22°) is controlled by seepage erosion, whereas the erosion of steep slopes (26°) is governed by mass failures. Erosion rates per diurnal cycle do not depend on ramp rates, but they increase with sandbar steepness. Therefore, steep sandbar faces would rapidly erode by mass failure and seepage erosion to shallower stable slopes in the absence of other erosion processes, regardless of dam discharge ramp rates. Our experiments only address seepage erosion and mass failure; increasing the daily magnitude and/or duration of peak discharge may increase the erosion of bars by turbulent sediment transport. Copyright © 2012 John Wiley & Sons, Ltd.
Impact of Depression, Fatigue and Disability on Quality of Life in Chinese Patients with Multiple Sclerosis
Authors: Chen Kelong , Fan Yongping , Hu Rui , Yang Tao , Li Kangning 
Published: May 2012

AbstractThe aim of this work is to investigate and analyze the main factors that influence the quality of life (QOL) of multiple sclerosis (MS) patients. The QOL (Multiple Sclerosis Impact Scale), disability (Expanded Disability Status Scale), fatigue (Modified Fatigue Impact Scale) and depression (Beck Depression Inventory) were assessed in 100 MS patients. Correlation analysis shows that QOL is positively correlated with disability status, fatigue and depression, i.e. the more severe the disability, fatigue and depression, the worse the QOL. Multiple linear regression analysis indicated that Expanded Disability Status Scale grade and fatigue have important predictive value on the somatic QOL of MS patients. On the other hand, depression and fatigue have important predictive value on the mental QOL of MS patients. The QOL of MS patients is influenced by various factors, nursing care that focuses on patient disability, fatigue and depression should be strengthened. Copyright © 2012 John Wiley & Sons, Ltd.