bluuebunny/crossref_metadata_2025_split huggingface dataset:
Preparation and Characterization of Bi3+‐TiO2 and its Photocatalytic Activity
Authors: Zuo H. , Sun J. , Deng K. , Su R. , Wei F. , Wang D. 
Published: April 2007

AbstractBi3+‐TiO2 photocatalysts were prepared by doping bismuth ion into the TiO2 structure in a sol‐gel process. The catalyst samples were then characterized by UV‐vis diffuse reflectance spectra (DRS), X‐ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FT‐IR), X‐ray diffraction (XRD) and transmission electron microscopy (TEM). Rodamine‐B (RhB) was used in this study as a model chemical with the aim of organic pollutants control. The photocatalytic degradation of RhB demonstrated that an optimal loading of bismuth 0.7 at. % achieved the highest photodegradation rate, with the rate constant increasing by a factor of 3.89 over neat TiO2 (P25) under UV illumination (λ ≥ 320 nm). The degradation of p‐nitrobenzonic acid (pNBA) was also examined to prevent/preclude/exclude/ the photosensitization pathway. GC‐MS results show that pNBA can be effectively degraded and minerized to small molecules, such as quinone, acetic acid and formic acid.
Generation of a conditional knockout allele for mammalian Spen protein Mint/SHARP
Authors: Yabe Daisuke , Fukuda Hitoshi , Aoki Misayo , Yamada Shuichi , Takebayashi Shinji , Shinkura Reiko , Yamamoto Norio , Honjo Tasuku 
Published: April 2007

AbstractThe Spen protein family is found in worms, flies, and mammals, and is implicated in diverse biological processes from embryogenesis to aging. Spen proteins have three N‐terminal RNA recognition motifs and a C‐terminal SPOC domain. The mammalian Spen proteins Mint and its human ortholog SHARP interact with the Notch‐signaling mediator RBP‐J as well as Msx2 and several unliganded nuclear hormone receptors, and impart transcription‐repressing activity to these molecules by recruiting corepressors through the SPOC domain. Despite these in vitro findings, Mint/SHARP's physiological role is largely unknown, because Mint germline knockouts are embryonic lethal. To analyze Mint/SHARP function in postnatal mice, we created Mint‐floxed mice that allow the Cre/loxP‐mediated conditional knockout of Mint. We analyzed Mint and RBP‐J epistasis during Notch‐dependent splenic B‐lymphocyte development, and found that Mint suppresses Notch signaling through RBP‐J. In addition, Mint deficiency caused severe hypoplasia in postnatal brain, suggesting it may regulate neuronal cell survival. genesis 45:300–306, 2007. © 2007 Wiley‐Liss, Inc.
HPRT minigene generates chimeric transcripts as a by‐product of gene targeting
Authors: Holcomb Valerie B. , Kim Tae Moon , Dumitrache Lavinia C. , Ma Sheng‐Mei , Chen Ming‐Jiu , Hasty Paul 
Published: April 2007

AbstractThe HPRT minigene is a selection cassette used for gene targeting in mouse embryonic stem (ES) cells and, it is unique since selection may be applied for its presence and absence. This minigene has two exon clusters separated by a small intron and splicing sequences. We find these exon clusters splice into exons from the target gene forming two different classes of chimeric transcripts. The first class is expressed by the endogenous promoter and includes upstream target gene exons spliced into minigene exons 3–8. The second class is expressed by the minigene's PGK promoter and includes minigene exons 1–2 spliced into downstream target gene exons. These chimeric transcripts may produce chimeric proteins that could influence phenotype. Therefore, we have designed two floxed HPRT minigenes that permit removal of either the 5′ half of the minigene or the entire minigene via Cre‐mediated recombination. genesis 45:275–281, 2007. Published 2007 Wiley‐Liss, Inc.
Facial expressions of emotions: a methodological contribution to the study of spontaneous and dynamic emotional faces
Authors: Tcherkassof Anna , Bollon Thierry , Dubois Michel , Pansu Pascal , Adam Jean‐Michel 
Published: April 2007

AbstractThis paper addresses methodological considerations relevant to nonverbal communication of emotion research. In order to gather more information about the interpretations given to spontaneous and dynamic facial expressions, two main objectives guide the present exploratory research. The first one is to obtain naturalistic recordings of emotional expressions in realistic settings that are ‘emotional enough’. The second one is to address the issue of dynamic judgments of facial expressions of emotion, that is real‐time emotional recognition. An innovative device has been created for this specific purpose. Results show that, although the social nature of the eliciting situation is minimal, the experience of some emotions is reflected on the encoders' faces while being covertly videotaped in natural conditions. Moreover, results show the utility to investigate dynamic emotional judgments of spontaneous and dynamic expressions since observers seem to be sensitive to the slightest facial expression change in making their emotional judgments. A promising paradigm is thus proposed for the study of the dynamics of real‐time nonverbal emotional interaction. Copyright © 2007 John Wiley & Sons, Ltd.
Are two informants better than one? Parent–child agreement on the eating styles of children who are overweight
Authors: Braet Caroline , Soetens Barbara , Moens Ellen , Mels Saskia , Goossens Lien , Van Vlierberghe Leen 
Published: April 2007

AbstractAimIt is currently unknown to what extent the view of a child with overweight on its' own eating behaviour converges with parental perception regarding this behaviour and how parent–child agreement is influenced by overweight status and age.MethodYoungsters (N = 498; range 7–15 years; 37% boys) referred for weight treatment to an outpatient University centre filled in the Dutch Eating Behaviour Questionnaire—child version (DEBQ‐child version; Van Strien & Braet, unpublished work), prior to treatment, while their parents reported on their child's eating behaviour by completing the DEBQ‐parent version (Braet & Van Strien, 1997).ResultsParents scored significantly higher when reporting on the emotional eating and external eating behaviour of their child, while they scored lower for restrained eating (all p < 0.001). Comparisons between the subscales of the DEBQ‐parent version and the DEBQ‐child version revealed significant positive correlations of r = 0.45 for emotional eating, r = 0.35 for external eating and r = 0.36 for restrained eating (all p < 0.01); convergence is lowest for the age group younger than 10 (p < 0.05). Both versions of the DEBQ displayed low correlations with the degree of overweight of the child.DiscussionParents and children displayed moderate to good agreement with regard to emotional eating, external eating and restrained eating. However when only one perspective can be assessed, possible biases must be taken into account. In that case, the use of appropriate age‐specific norms is indicated. Copyright © 2007 John Wiley & Sons, Ltd and Eating Disorders Association.
Comparison of landslide susceptibility maps generated through multiple logistic regression for three test areas in Korea
Authors: Lee Saro 
Published: April 2007

AbstractThe aim of this study was to apply, verify and compare a multiple logistic regression model for landslide susceptibility analysis in three Korean study areas using a geographic information system (GIS). Landslide locations were identified by interpreting aerial photographs, satellite images and a field survey. Maps of the topography, soil type, forest cover, lineaments and land cover were constructed from the spatial data sets. The 14 factors that influence landslide occurrence were extracted from the database and the logistic regression coefficient of each factor was computed. Landslide susceptibility maps were drawn for these three areas using logistic regression coefficients derived not only from the data for that area but also using those for each of the other two areas (nine maps in all) as a cross‐check of method validity. For verification, the results of the analyses were compared with actual landslide locations. Among the nine cases, the Janghung exercise using the logistic formula and the coefficient for Janghung had the greatest accuracy (88·44%), whereas Janghung results, when considered by the logistic formula and the coefficient for Boeun, had the least accuracy (74·16%). Copyright © 2007 John Wiley & Sons, Ltd.
A combined simulation–genetic algorithm optimization model for optimal rule curves of a reservoir: a case study of the Nam Oon Irrigation Project, Thailand
Authors: Suiadee Watchara , Tingsanchali Tawatchai 
Published: April 2007

AbstractA combined simulation–genetic algorithm (GA) optimization model is developed to determine optimal reservoir operational rule curves of the Nam Oon Reservoir and Irrigation Project in Thailand. The GA and simulation models operate in parallel over time with interactions through their solution procedure. A GA is selected as an optimization model, instead of traditional techniques, owing to its powerful and robust performance and simplicity in combining with a simulation technique. A GA is different from conventional optimization techniques in the way that it uses objective function information and does not require its derivatives, whereas in real‐world optimization problems the search space may include discontinuities and may often include a number of sub‐optimum peaks. This may cause difficulties for calculus‐based and enumerative schemes, but not in a GA. The simulation model is run to determine the net system benefit associated with state and control variables.The combined simulation–GA model is applied to determine the optimal upper and lower rule curves on a monthly basis for the Nam Oon Reservoir, Thailand. The objective function is maximum net system benefit subject to given constraints for three scenarios of cultivated areas. The monthly release is calculated by the simulation model in accordance with the given release policy, which depends on water demand. The optimal upper and lower rule curves are compared with the results of the HEC‐3 model (Reservoir System Analysis for Conservation model) calculated by the Royal Irrigation Department, Thailand, and those obtained using the standard operating policy. It was found that the optimal rule curves yield the maximum benefit and minimum damages caused by floods and water shortages. The combined simulation–GA model shows an excellent performance in terms of its optimization results and efficient computation. Copyright © 2007 John Wiley & Sons, Ltd.
The relationships of antisocial behavior with attachment styles, autonomy‐connectedness, and alexithymia
Authors: Bekker Marrie H. J. , Bachrach Nathan , Croon Marcel A. 
Published: April 2007

AbstractThe present study was aimed at investigating the relationships among attachment styles, autonomy‐connectedness (self‐awareness, sensitivity to others, and capacity for managing new situations), alexithymia, and antisocial behavior among 202 college students (67 men and 135 women). We were particularly interested in sex differences in the levels of these variables as well as their associations. Sex differences were expected in types of insecure attachment styles, patterns of autonomy‐connectedness, and levels of self‐reported antisocial and passive‐aggressive behavior. All expected sex differences were indeed found. Furthermore, the model that we hypothesized was partly confirmed: For men, anxious attachment had a stronger direct and positive effect on antisocial behavior than for women, and the positive effect of anxious attachment on passive‐aggressive behavior was smaller for women than for men. Interestingly, capacity for managing new situations had a main and mediating effect on antisocial behavior. Sensitivity to others appeared as a mediator between anxious attachment style and passive‐aggressive behavior. Contrary to expectations, fantasizing (a component of alexithymia) had a strong, negative association with antisocial behavior. The results are discussed against the background of other recent findings concerning alexithymia and autonomy‐ connectedeness. © 2007 Wiley Periodicals, Inc. J Clin Psychol.
The voices acceptance and action scale (VAAS): Pilot data
Authors: Shawyer Frances , Ratcliff Kirk , Mackinnon Andrew , Farhall John , Hayes Steven C. , Copolov David 
Published: April 2007

AbstractAcceptance and mindfulness methods that emphasise the acceptance rather than control of symptoms are becoming more central to behavioural and cognitive therapies. Acceptance and Commitment Therapy (ACT) is the most developed of these methods; recent applications of ACT to psychosis suggest it to be a promising therapeutic approach. However, investigation of the mechanisms of therapy within this domain is difficult because there are no acceptance‐based measures available specifically for psychotic symptoms. This paper describes the preliminary evaluation of a self‐report instrument designed to assess acceptance‐based attitudes and
actions in relation to auditory and command hallucinations. Following initial scale development, a 56‐item version of the Voices Acceptance and Action Scale (VAAS) was administered to 43 participants with command hallucinations as part of their baseline assessment in a larger trial. Measures of symptoms, quality of life, and depression were also administered. The scale was examined for reliability using corrected item total statistics. Based on this method, 31 items were retained. Internal consistency and test‐retest reliability for the 31‐item VAAS were acceptable. Subsequent examination of construct validity showed the VAAS to correlate significantly in the expected directions with depression, quality of life, and coping with command hallucinations. It also discriminated compliance from non‐compliance with harmful command hallucinations. Although these results are preliminary and subject to a number of limitations, the VAAS shows promise as a useful aid in the assessment of the psychological impact of voices. © 2007 Wiley Periodicals, Inc. J Clin Psychol.
Health disparities and culturally specific treatment: Perspectives and expectancies of African American smokers
Authors: Webb Monica S. , Francis Joan , Hines Bill C. , Quarles Frankie B. 
Published: April 2007

AbstractResearchers suggest that culturally specific (CS) interventions are important in addressing smoking‐related health disparities. Yet, little research has examined the perspectives of African American smokers regarding these efforts. This qualitative study sought to gain insight into perceptions related to (a) the smoking prevalence among African Americans, (b) smoking‐related health disparities, (c) expectancies for CS interventions, (d) methods of recruiting research participants, and (e) key intervention components. Six focus groups were conducted with 41 African American smokers (aged 21–64) at a community health center. Content analyses revealed several themes, including the perception that smoking is normative among African Americans, limited knowledge of racial health disparities, mixed perceptions regarding race as a risk factor for illness, and mixed expectancies for the efficacy of CS interventions. In conclusion, individual differences, such as smoking norms, knowledge of health disparities, and intervention expectations may influence receptivity to CS treatments. Implications for tobacco interventions among African Americans are discussed. © 2007 Wiley Periodicals, Inc. J Clin Psychol.
Autoalignment of intervertebral disks
Authors: Peschl Simone , Mader Irina , Strecker Ralph , Hennig Jürgen 
Published: April 2007

AbstractPurposeTo develop an automated planning method to obtain double oblique slices for clinically relevant diagnoses of spine‐related pathologies.Materials and MethodsThirty healthy volunteers, 18 patients with cervical spine (c‐spine) pathologies, and 15 patients with lumbar spine (l‐spine) pathologies were included in this study. The planning method requires no interaction and is calculated online on the MR scanner after two sagittal acquisitions (a MR myelogram and standard T2‐weighted (T2W) acquisition). The planning of the subsequent double oblique slice packets is calculated automatically. The results from the volunteers were evaluated visually by an operating technician. The results obtained in a clinical trial from interactive planning by an operating technician and from automated planning were compared.ResultsVisual assessment of the planned slices in the T2W images of all subjects confirmed the accuracy and robustness of the method for both applications. The differences in positions and orientations between interactively and automatically planned transverse series were within the range of interindividual variability.Conclusionhe new approach can be used to automatically plan double oblique MR images for examination of spine‐related pathologies with high reliability and robustness. The major advantage is that simultaneous planning in the transversal–coronal and transversal–sagittal orientations can be performed without any additional measurement. Another advantage is that standardized localization of the nerve roots in the center of the image can be obtained. J. Magn. Reson. Imaging 2007;25:938–946. © 2007 Wiley‐Liss, Inc.
Assessing normal pulse wave velocity in the proximal pulmonary arteries using transit time: A feasibility, repeatability, and observer reproducibility study by cardiovascular magnetic resonance
Authors: Bradlow William M. , Gatehouse Peter D. , Hughes Ray L. , O'Brien Aoife B. , Gibbs John S.R. , Firmin David N. , Mohiaddin Raad H. 
Published: April 2007

AbstractPurposeTo calculate pulse wave velocity (PWV) in the proximal pulmonary arteries (PAs) by cardiovascular magnetic resonance (CMR) using the transit‐time method, and address respiratory variation, repeatability, and observer reproducibility.Materials and MethodsA 1.9‐msec interleaved phase velocity sequence was repeated three times consecutively in 10 normal subjects. Pulse wave (PW) arrival times (ATs) were determined for the main and branch PAs. The PWV was calculated by dividing the path length traveled by the difference in ATs. Respiratory variation was considered by comparing acquisitions with and without respiratory gating.ResultsFor navigated data the mean PWVs for the left PA (LPA) and right PA (RPA) were 2.09 ± 0.64 m/second and 2.33 ± 0.44 m/second, respectively. For non‐navigated data the mean PWVs for the LPA and RPA were 2.14 ± 0.41 m/second and 2.31 ± 0.49 m/second, respectively. No statistically significant difference was found between respiratory non‐navigated data and navigated data. Repeated on‐table measurements were consistent (LPA non‐navigated P = 0.95, RPA non‐navigated P = 0.91, LPA navigated P = 0.96, RPA navigated P = 0.51). The coefficients of variation (CVs) were 12.2% and 12.5% for intra‐ and interobserver assessments, respectively.ConclusionOne can measure PWV in the proximal PAs using transit‐time in a reproducible manner without respiratory gating. J. Magn. Reson. Imaging 2007;25:974–981. © 2007 Wiley‐Liss, Inc.
Detection of myocarditis by contrast‐enhanced MRI in patients presenting with acute coronary syndrome but no coronary stenosis
Authors: Codreanu Andrei , Djaballah Wassila , Angioi Michael , Ethevenot Gérard , Moulin Frederic , Felblinger Jacques , Sadoul Nicolas , Karcher Gilles , Aliot Etienne , Marie Pierre Y. 
Published: April 2007

AbstractPurposeTo prospectively assess the use of cardiac MRI with delayed contrast enhancement (DCE) for identifying patients with active myocarditis among those presenting with acute coronary syndrome (ACS) but no coronary stenosis.Materials and MethodsA total of 27 consecutive patients (age = 45 ± 17 years; 14 male) presenting with ACS (chest pain, positive troponin‐I) and no coronary stenosis, underwent cardiac MRI 9 ± 7 days after pain onset and 8 ± 5 months later (N = 19). Steady‐state free‐precession pulse (SSFP) sequence was applied for the assessment of myocardial function and both inversion‐recovery (IR) and SSFP sequences were used for analyzing the topography and extent of DCE areas. Rest sestamibi‐gated‐single photon emission CT (SPECT) was also systematically performed.ResultsSubepicardial DCE pattern typical of acute myocarditis was documented in 12 patients (44%). Ischemic DCE pattern (transmural or subendocardial focal DCE) was documented in 12 of the 15 remaining patients (44%). Patients with subepicardial DCE had: higher C‐reactive protein (CRP) levels (38 ± 32 vs. 14 ± 24 mg/mL; P = 0.04), lower Framingham cardiovascular risk (3 ± 3% vs. 9 ± 5%; P < 0.001), lower incidence of perfusion SPECT defects (17% vs. 73%; P = 0.01), higher left ventricular (LV) end‐diastolic volume (77 ± 16 vs. 64 ± 10 mL/m2; P = 0.02), and higher regression of DCE areas at follow‐up (−65 ± 17% vs. −18 ± 23%; P = 0.002).ConclusionDCE pattern of active myocarditis can be seen in patients presenting with ACS but no coronary stenosis. J. Magn. Reson. Imaging 2007;25:957–964. © 2007 Wiley‐Liss, Inc.
Multiple regression method for pulmonary apparent diffusion coefficient measurement by hyperpolarized 3He MRI
Authors: Yu Jiangsheng , Ishii Masaru , Kadlecek Stephen , Lipson David A. , Emami Kiarash , Clark Timothy W. , Rajaei Sheeva , Rizi Rahim R. 
Published: April 2007

AbstractPurposeTo develop and validate a new multiple regression technique for the separation of flip angle effect in pulmonary apparent diffusion coefficient (ADC) measurement.Materials and MethodsHyperpolarized 3He MRI (HP 3He MRI) ADC measurements were performed on phantom, pig, and human models. The diffusion‐sensitization sequence is modified from a standard gradient echo (GRE) sequence with a nonlinear progression in the bipolar gradient amplitude with each image. In the self‐diffusion phantom experiment, four images were acquired with base gradient factor b0 = 0.15 second/cm2; in the pig and human experiment, six images were acquired with base gradient factor b0 = 1.4 second/cm2.ResultsThe self‐diffusion coefficient measured in the phantom experiment was 1.98 ± 0.16 cm2/second. The measured uncertainty curve was consistent with the theoretically predicted curve. The measured in vivo ADC values (three coronal slices in the supine direction) were 0.20/0.16/0.13 cm2/second and 0.20/0.18/0.16 cm2/second for pig and human experiments, respectively.ConclusionWith the introduction of a nonlinear progression in the diffusion‐sensitization gradients, the multiple regression technique is capable of separating the flip angle effect in ADC measurement. In addition, this technique can perform a rigorous measurement uncertainty analysis and provide the optimal scan parameters that yield best noise performance. J. Magn. Reson. Imaging 2007;25:982–991. © 2007 Wiley‐Liss, Inc.