bluuebunny/crossref_metadata_2025_split huggingface dataset:
Psychometric properties of the Civilian version of the Mississippi PTSD scale
Authors: Lauterbach Dean , Vrana Scott , King Daniel W. , King Lynda A. 
Published: June 2007

AbstractThe psychometric properties of the Civilian Mississippi Posttraumatic Stress Disorder (PTSD) Scale were explored. The Mississippi is internally consistent (α ≅ 89, split‐half r ≅ 80), and it can discriminate between traumatized and nontraumatized respondents. However, its relationship with measures of PTSD was weaker than its relationship with measures of depression and anxiety, suggesting that it may be more of a general measure of distress. The results of a series confirmatory factor analyses provided mixed results. These findings were discussed along with recommendations for use of this instrument.
EMDR minus eye movements equals good psychotherapy
Authors: Hyer Lee , Brandsma Jeffrey M. 
Published: June 2007

AbstractEye Movement Desensitization and Reprocessing (EMDR) is a therapy roughly equal in efficacy to others currently available. It is argued that this treatment method is efficacious independent of the value of its component parts (e.g., eye movements) and is successful because it applies common and generally accepted principles of psychotherapy. Ten curative principles of this procedure are discussed as reflective of sound psychotherapy practice. It is hoped that an understanding of this therapy from the perspective of the practice and theory of psychotherapy will assist in its study.
Adult memories of childhood trauma: A naturalistic clinical study
Authors: Herman Judith L. , Harvey Mary R. 
Published: June 2007

AbstractThe clinical evaluations of 77 adult psychiatric outpatients reporting memories of childhood trauma were reviewed. A majority of patients reported some degree of continuous recall. Roughly half (53%) said they had never forgotten the traumatic events. Two smaller groups described a mixture of continuous and delayed recall (17%) or a period of complete amnesia followed by delayed recall (16%). Patients with and without delayed recall did not differ significantly in the proportions reporting corroboration of their memories from other sources. Idiosyncratic, trauma‐specific reminders and recent life crises were most commonly cited as precipitants to delayed recall. A previous psychotherapy was cited as a factor in a minority (28%) of cases. By contrast, intrusion of new memories after a period of amnesia was frequently cited as a factor leading to the decision to seek psychotherapy. The implications of these findings are discussed with respect to the role of psychotherapy in the process of recovering traumatic memories.
N,N,N‐Trimethylchitosan Chloride as a Gene Vector: Synthesis and Application
Authors: Mao Zhengwei , Ma Lie , Jiang Yan , Yan Ming , Gao Changyou , Shen Jiacong 
Published: June 2007

AbstractN,N,N‐Trimethylchitosan chloride with different degrees of quaternization has been synthesized and characterized by 1H NMR spectroscopy. The particle size ranges from 150 to 600 nm, which is dependent on the N/P ratio and is less influenced by the degree of quaternization. The majority of the particles have a spherical morphology. The zeta potential of the particles increases with the N/P ratio and the quaternization degree of TMC. Short‐term contact experiments show good biocompatibility of TMC, but long‐term contact experiments reveal its high toxicity. This study suggests that TMC is a promising gene carrier, but further modification is still required to improve its cytocompatibility.magnified image
EGF‐like peptides mediate FSH‐induced maturation of cumulus cell‐enclosed mouse oocytes
Authors: Downs Stephen M. , Chen Jing 
Published: June 2007

AbstractThis study was carried out to examine the participation of epidermal growth factor (EGF)‐like peptides in the induction of germinal vesicle breakdown (GVB) in mouse cumulus cell‐enclosed oocytes (CEO). The EGF‐like peptide, amphiregulin (AR), dose‐dependently stimulated meiotic resumption in CEO, but not denuded oocytes (DO) maintained in meiotic arrest with 300 µM dbcAMP. The EGF receptor (EGFR) kinase inhibitor, AG1478, blocked meiotic resumption induced by FSH and AR in CEO, but had no effect in DO. FSH‐induced maturation was also suppressed by antisera to both EGFR and EGF. Maturation occurred with slightly faster kinetics in AR‐stimulated CEO when compared to FSH‐stimulated CEO. When CEO were maintained in meiotic arrest with a low level of dbcAMP, FSH was initially inhibitory to maturation and later stimulatory; the stimulatory phase was prevented by AG1478, indicating mediation by EGF‐like peptides. Pulsing CEO with high levels of dbcAMP also stimulated GVB and could be blocked by AG1478. Treatment of arrested CEO with PKC agonists stimulated maturation and this was prevented with AG1478 as well as antibodies to EGFR. FSH‐induced maturation of dbcAMP‐arrested CEO was blocked by bisindolylmaleimide I (BIM‐I), an inhibitor of PKC, implicating PKC in FSH action. EGF‐stimulated CEO failed to resume maturation in the presence of glycerrhetinic acid, a gap junction inhibitor, suggesting transfer of positive signal through the cell–cell coupling pathway. These data support the idea that EGF‐like peptides provide a common pathway mediating the meiosis‐inducing influence of FSH, cAMP pulsing, and PKC activation in mouse CEO by a gap junction‐dependent process. Mol. Reprod. Dev. 75: 105–114, 2008. © 2007 Wiley‐Liss, Inc.
Integrated production scheduling and preventive maintenance planning for a single machine under a cumulative damage failure process
Authors: Kuo Yarlin , Chang Zi‐Ann 
Published: June 2007

AbstractThis paper finds the optimal integrated production schedule and preventive maintenance plan for a single machine exposed under a cumulative damage process, and investigates how the optimal preventive maintenance plan interacts with the optimal production schedule. The goal is to minimize the total tardiness. The optimal policy possesses the following properties: Under arbitrary maintenance plan when jobs have common processing time, and different due dates, the optimal production schedule is to order the jobs by earliest due date first rule; and when jobs have common due date and different processing times, the optimal production schedule is shortest processing time first. The optimal maintenance plan is of control limit type under any arbitrary production schedule when machine is exposed under a cumulative damage failure process. Numerical studies on the optimal maintenance control limit of the maintenance plan indicate that as the number of jobs to be scheduled increases, the effect of jobs due dates on the optimal maintenance control limit diminishes. © 2007 Wiley Periodicals, Inc. Naval Research Logistics, 2007
Network disconnection problems in a centralized network
Authors: Myung Young‐Soo , Kim Hyun‐Joon 
Published: June 2007

AbstractWe consider three network disconnection problems in a centralized network where a source node provides service to the other nodes, called demand nodes. In network disconnection problems, each demand node gets a certain benefit when connected to a source node and a network attacker destroys edges to prevent demand nodes from achieving benefits. As destroying edges incurs expenses, an attacker considers the following three different strategies. The first is to maximize the sum of benefits of the disconnected nodes while keeping the total edge destruction cost no more than a given budget. The second is to minimize the total destruction cost needed to make a certain amount of benefits not accomplished. The last is to minimize the ratio of the total destruction cost to the benefits not accomplished. In this paper, we develop exact algorithms to solve the above three problems. © 2007 Wiley Periodicals, Inc. Naval Research Logistics, 2007
Examinations for terminal condition of Lagrange multiplier for heat transfer control problems
Authors: Kurahashi T. , Kawahara M. 
Published: June 2007

AbstractThis paper presents a method to express the terminal condition of Lagrange multiplier by the solution of the steady adjoint equation. In the control problem based on the adjoint equation method, the terminal condition of Lagrange multiplier has been set zero to satisfy the stationary condition of the extended performance function. Therefore, there is a possibility that the control value near the terminal time cannot be appropriately expressed. To solve this problem, a method to express the terminal condition of Lagrange multiplier by the solution of the steady adjoint equation is proposed and examined. Finally, to confirm the propriety of the proposed method, this method is applied to the sequential control problem, and some remarks are made. Copyright © 2007 John Wiley & Sons, Ltd.
Convergence of a difference scheme for the heat equation in a long strip by artificial boundary conditions
Authors: Han Houde , Sun Zhi‐zhong , Wu Xiao‐nan 
Published: June 2007

AbstractThe numerical solution of the heat equation on a strip in two dimensions is considered. An artificial boundary is introduced to make the computational domain finite. On the artificial boundary, an exact boundary condition is proposed to reduce the original problem to an initial‐boundary value problem in a finite computational domain. A difference scheme is constructed by the method of reduction of order to solve the problem in the finite computational domain. It is proved that the difference scheme is uniquely solvable, unconditionally stable and convergent with the convergence order 2 in space and order 3/2 in time in an energy norm. A numerical example demonstrates the theoretical results.© 2007 Wiley Periodicals, Inc. Numer Methods Partial Differential Eq 2007
Discontinuous Galerkin finite element methods for variational inequalities of first and second kinds
Authors: Djoko J.K. 
Published: June 2007

AbstractWe develop the error analysis for the h‐version of the discontinuous Galerkin finite element discretization for variational inequalities of first and second kinds. We establish an a priori error estimate for the method which is of optimal order in a mesh dependant as well as L2‐norm.© 2007 Wiley Periodicals, Inc. Numer Methods Partial Differential Eq 2007
Numerical solution to a linearized KdV equation on unbounded domain
Authors: Zheng Chunxiong , Wen Xin , Han Houde 
Published: June 2007

AbstractExact absorbing boundary conditions for a linearized KdV equation are derived in this paper. Applying these boundary conditions at artificial boundary points yields an initial‐boundary value problem defined only on a finite interval. A dual‐Petrov‐Galerkin scheme is proposed for numerical approximation. Fast evaluation method is developed to deal with convolutions involved in the exact absorbing boundary conditions. In the end, some numerical tests are presented to demonstrate the effectiveness and efficiency of the proposed method.© 2007 Wiley Periodicals, Inc. Numer Methods Partial Differential Eq 2008
EI/MS fragmentation of abieta‐8,11,13‐triene diterpenoid derivatives as a tool to identify swartziarboreols in Swartzia extracts
Authors: Santos Celira Caparica , Magalhães Eva Gonçalves , Magalhães Aderbal Farias 
Published: June 2007

AbstractA systematic molecular fragmentation pathway (SMFP) was designed as an identifier to detect swartziarboreols (abieta‐8,11,13‐triene diterpenoid derivatives) in Swartzia extracts. The SMFP was rationalised through the interpretation of the EI/MS of swartziarboreols isolated from S. arborescens and S. langasdorffii and by analogy with the fragmentations observed for previously isolated compounds. Two pairs of swartziarboreol epimers were identified by GC‐MS in an extract of S. langsdorffii using SMFP. Acetylation and methylation of the dichloromethane extract furnished, respectively, 3 and 4, which suggested the occurrence of a new natural orthodiphenolic swartziarboreol. Copyright © 2007 John Wiley & Sons, Ltd.
Identification and quantification of C21 steroidal saponins from radix cynanchi atrati by high‐performance liquid chromatography with evaporative light scattering detection and electrospray mass spectrometric detection
Authors: Liang Mingjin , Zheng Zhaoguang , Yuan Ying , Kong Lingyi , Shen Yunheng , Liu Runhui , Zhang Chuan , Zhang Weidong 
Published: June 2007

AbstractHigh‐performance liquid chromatography coupled with electrospray tandem mass spectrometry (HPLC‐ESI/MS) and evaporative light scattering detection (HPLC‐ELSD), respectively, has been performed for the simultaneous identification and quantification of six C21 steroid saponins, including cynanversicoside A, B, D, G, glaucoside C and glaucogenin C‐3‐O‐β‐d‐thevetopyranoside in Radix Cynanchi Atrati. The extraction of the C21 steroidal saponins was performed using a B‐811 Buchi Universal Extraction System in Warm Solvent Mode, and the analyte was concentrated by column chromatography before HPLC analysis. The chromatographic separation was performed on an Agilent Zorbax Extend C18 analytical column efficiently using gradient elution with acetonitrile and water. The method was validated with acceptable linearities (r > 0.9991) and recoveries (98.2–101.3%). The limits of detection of the C21 steroid saponins were from 0.2 µg for glaucogenin C‐3‐O‐β‐d‐thevetopyranoside to 0.5 µg for cynanversicoside B. The intra‐ and inter‐day precisions of the method were evaluated and were less than 5.0%. The method was successfully used to analyse 20 batches of Radix Cynanchi Atrati. The content of C21 steroid saponins in the plant material varied significantly from habitat to habitat, confirming the necessity to control the quality of Radix Cynanchi Atrati during its preparation and application in the clinic. Copyright © 2007 John Wiley & Sons, Ltd.
Does offering and performing prenatal screening influence women's attachment to their unborn child? A longitudinal randomized controlled trial
Authors: Kleinveld Johanna H. , Timmermans Daniëlle R. M. , van den Berg Matthijs , van Eijk Jacques Th. M. , Ten Kate Leo P. 
Published: June 2007

AbstractObjectiveThe question addressed was: Does offering prenatal screening and receiving a negative screening outcome influence women's attachment to their unborn child?MethodsWomen were offered a nuchal translucency measurement, maternal serum screening, or no screening at all in a randomized controlled trial. Attachment was measured by a self‐developed questionnaire at four points in time: before screening was offered, after the offer, after receiving the negative screening result (or at comparable points in time) and in the last trimester of pregnancy. In the last trimester, the Prenatal Attachment Inventory was also filled in.ResultsWomen who had been offered screening (n = 1031) showed more attachment (F(1,1415) = 19.42, p < .001) compared to women who had not been offered screening (n = 387). This difference disappeared later in pregnancy. At all points in time, negatively screened women (n = 466) had equal levels of attachment compared to screening decliners (n = 565). No difference was observed between women who received a negative result of the ultrasound screening (n = 285) as compared to the blood screening (n = 162).ConclusionOffering prenatal screening seems to temporarily increase attachment. However, this difference is very small. Attachment is not influenced by whether a blood screening or an ultrasound screening is performed. Copyright © 2007 John Wiley & Sons, Ltd.
A further case with a small supernumerary marker chromosome (sSMC) derived from chromosome 1—evidence for high variability in mosaicism in different tissues of sSMC carriers
Authors: Fickelscher Ina , Starke Heike , Schulze Eberhard , Ernst Günther , Kosyakova Nadezda , Mkrtchyan Hasmik , MacDermont Kay , Sebire Neil , Liehr Thomas 
Published: June 2007

AbstractA prenatally ascertained case with a de novo small supernumerary marker chromosome (sSMC) derived from chromosome 1 is reported. Due to a fetal heart defect the parents decided in favour of an induced abortion. Postmortem, a molecular cytogenetic study on eleven formalin fixed, paraffin‐embedded tissues of the fetus was performed, to further characterize the levels of mosaicism of the sSMC(1). sSMC presence varied between 13 and 62% within different tissues of sSMC carriers. This finding is something common in sSMC carriers and could explain why up to the present no clinical correlations for sSMC mosaicism and clinical outcome in the corresponding carriers could be established. Copyright © 2007 John Wiley & Sons, Ltd.
Doping phosphoric acid in polybenzimidazole membranes for high temperature proton exchange membrane fuel cells
Authors: He Ronghuan , Li Qingfeng , Jensen Jens Oluf , Bjerrum Niels J. 
Published: June 2007

AbstractPolybenzimidazole (PBI) membranes were doped in phosphoric acid solutions of different concentrations at room temperature. The doping chemistry was studied using the Scatchard method. The energy distribution of the acid complexation in polymer membranes is heterogeneous, that is, there are two different types of sites in PBI for the acid doping. The protonation constants of PBI by phosphoric acid are found to be 12.7 L mol−1 (K1) for acid complexing sites with higher affinity, and 0.19 L mol−1 (K2) for the sites with lower affinity. The dissociation constants for the complexing acid onto these two types of PBI sites are found to be 5.4 × 10−4 and 3.6 × 10−2, respectively, that is, about 10 times smaller than that of aqueous phosphoric acid in the first case but 5 times higher in the second. The proton conducting mechanism is also discussed. © 2007 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 45: 2989–2997, 2007
Preparation and properties of novel thermotropic liquid crystalline hyperbranched polyesters composed of five‐membered heterocyclic mesogen by A2 + B3 approach
Authors: Sato Moriyuki , Matsuoka Yoichi , Yamaguchi Isao 
Published: June 2007

AbstractNew thermotropic liquid crystalline (LC) hyperbranched (HB) polyesters containing 2,5‐diphenyl‐1,3,4‐thiadiazole (DTD) unit as mesogen in the interiors were prepared at various mole ratios (A2/B3) by melt and solution polycondensations of a dioxydiundecanol of DTD (A2) and 1,2,3‐propanetricarboxylic acid (B3) via the A2 + B3 approach and their LC and optical properties were investigated. FTIR and 1H‐NMR spectroscopies indicated that all the expected HB polyesters, which show good solubilities in organic solvents, are produced without gelation during the polymerization. Among them, the HB polymer prepared in the mole ratio of A2/B3 = 3/2 by the solution polycondensation had the highest inherent viscositiy. DSC measurents, polarizing microscope observations of optical textures, and X‐ray analyses suggested that the LC properties of HB polymers depend on the polymerization methods and the feed mole ratios. In the HB polymers prepared using the melt polycondensation, only the polymer prepared in the mole ratio of A2/B3 = 3/1 formed a highly‐ordered, tilted, crystal‐like smectic phase, but all the polymers prepared by the solution polycondensation formed highly‐ordered, tilted, smectic phases. Solution and solid‐state UV‐vis and photoluminescent (PL) spectra indicated that the HB polymers show maximum absorbances and blue‐light emission on the basis of the DTD unit, where the Stokes‐shifts were observed, probably because of intermolecular aggregation effects © 2007 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 45: 2998–3008, 2007
Optical characterization of ZnSe/ZnMgSSe microdisks with embedded CdSe quantum dots
Authors: Renner Johannes , Worschech Lukas , Mahapatra Suddhasatta , Brunner Karl , Forchel Alfred 
Published: June 2007

AbstractWe report on photoluminescence (PL) studies of ZnSe/ZnMgSSe microdisks with embedded CdSe quantum dots. The multilayer structure was grown by molecular beam epitaxy with a single layer of self‐assembled quantum dots. Microdisks were realized by electron beam lithography and etching techniques. To avoid absorption losses, the GaAs substrate was removed totally. Optical confinement is demonstrated by the appearance of whispering gallery modes. Lasing of quantum dots with low thresholds and β factors close to unity were observed, reflecting an excellent coupling of the microdisk modes with the quantum dots. At room temperature, optical modes with quality factors of several thousands dominate in the quantum dot spectrum in the green spectral range. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Magneto‐optics of modulation doped quantum wells based on II–VI semiconductor compounds
Authors: Astakhov G. V. , Ossau W. 
Published: June 2007

AbstractWe review on optical studies of exciton‐electron interaction in modulation doped quantum wells (QWs) based on ZnSe and CdTe semiconductor compounds. The optical properties of QWs containing diluted two‐dimensional electron gases (2DEGs) are well described in terms of charged excitons (trions). Their parameters such as oscillator strength, binding energy, and fine structure are considered in details. In case of moderate densities of 2DEGs, when the Fermi energy falls between the trion and exciton binding energies, the optical properties can be understood in terms of combined exciton‐electron excitations. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Optical studies of structural and magnetic anisotropies in epitaxial CdSe/ZnSe quantum dots
Authors: Kiessling T. , Astakhov G. V. , Platonov A. V. , Mahapatra S. , Slobodskyy T. , Ossau W. , Schmidt G. , Brunner K. , Molenkamp L. W. 
Published: June 2007

AbstractWe summarize experimental studies on the optical polarization properties of MBE‐grown shape‐asymmetric self‐assembled CdSe/ZnSe quantum dots (QDs). The zero magnetic field fine structure splitting of excitonic transitions in structurally anisotropic QDs gives rise to an effective linear‐to‐circular and circular‐to‐linear optical polarization conversion upon resonant excitation of the QD ensemble. The effect is qualitatively modelled in terms of a pseudospin formalism. Furthermore, we show how an in‐plane magnetic field leads to a complex rotation behavior of the axis of the optical polarization. Our analysis based on the exciton pseudospin Hamiltonian unambiguously displays that these effects are induced by isotropic and anisotropic contributions to the heavy hole Zeeman term. Likewise we show that the latter mechanism can be used to tune the optical respone of shape‐anisotropic QDs such that the optical polarization properties are equal to QDs of perfect D2d symmetry. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Hot filament effects on CVD of carbon nanotubes
Authors: Choi Seungho , Lee Soonil , Koh Ken Ha 
Published: June 2007

AbstractWe grew vertically aligned CNTs via HFCVD using mixtures of methane and hydrogen as feedstock, and investigated the dependence of CNT growth on feedstock composition, filament temperature, and filament types. At the filament temperature of 2050 °C tungsten filaments were more efficient for CNT growth than tantalum ones, and higher CNT growth rates were observed when tungsten filaments were operated at 1900 °C. Regardless of filament temperatures and types, monotonic increase in growth rate of vertically aligned CNTs was observed as we increased the methane concentration in the feedstock. In‐situ investigation of feedstock dissociation revealed the generation of various radical species, and, moreover, a strong correlation between CNT growth rates and relative mole fractions of single‐carbon radicals. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)