bluuebunny/crossref_metadata_2025_split huggingface dataset:
Change in symptomatic burden and life satisfaction during short‐term psychotherapy: Focusing on the role of family income
Authors: Behn Alex J. , Errázuriz Paula A. , Cottin Marianne , Fischer Candice 
Published: December 2017

AbstractObjectiveThe article examines the role of family income on the relationship between change in symptomatic burden and change in life satisfaction during six sessions of naturalistically delivered individual psychotherapy.MethodFive hundred and thirty‐two clients receiving psychotherapy were assessed at baseline and on a session‐to‐session basis with the OQ‐30.2 and with a life satisfaction questionnaire. Data were analysed using a bivariate latent class model with structured residuals that included cross‐lagged and autoregressive components between residual scores at each time point. Adjusted family income and a binary low versus high‐income group variable were added as exogenous baseline covariates at different stages of the analyses.ResultsRegardless of income level, clients show improvement in psychological distress and life satisfaction as a function of time during treatment. Initial levels and improvement in life satisfaction are related to initial levels and improvement in psychological distress, and lower family income is related to slower decreases in psychological distress. When the whole sample is analysed, psychological distress and life satisfaction show reciprocal prospective relationships at the within‐person level. When models are estimated by income group, casual relationships at the within‐person level vary as a function of income.ConclusionFamily income level appears to play a significant role in the relationship between symptom improvement and life satisfaction during psychotherapy.
Screening for mental health needs of New Zealand youth in secure care facilities using the MAYSI‐2
Authors: McArdle Sean , Lambie Ian 
Published: December 2017

AbstractBackgroundYoung people admitted to secure facilities generally have particularly high rates of mental, emotional and behavioural problems, but little is known about the mental health needs of this group in New Zealand.AimsTo describe prevalence of probable mental health disorder and related needs among young people in secure facilities in New Zealand.MethodsMassachusetts youth screening instrument – second version (MAYSI‐2) data were obtained from the records of young people admitted to one secure care facility (n = 204) within a 12 month period. We used descriptive statistics to determine prevalence of problems overall and multivariate analysis of variance to compare MAYSI‐2 scores between gender and ethnic groups.ResultsNearly 80% of these young people scored above the ‘caution’ or ‘warning’ cut‐off on the MAYSI‐2, a substantially higher proportion than reported in studies in other countries. There was a tendency for girls and for Maori and Pacific Islander subgroups to have a higher rate of probable psychopathology.ConclusionsYoung people in secure facilities in New Zealand have substantial service needs. Early intervention that engages them in services upon first contact with the youth justice system might help reduce this burden. Further validation of the MAYSI‐2 in New Zealand may be warranted because of the unique ethnic make‐up of these young offenders. Copyright © 2017 John Wiley & Sons, Ltd.
Predictors of patient radiation exposure during transcatheter aortic valve replacement
Authors: Goldsweig Andrew M. , Kennedy Kevin F. , Kolte Dhaval , Abbott J. Dawn , Gordon Paul C. , Sharaf Barry L. , Sellke Frank W. , Ehsan Afshin , Sodha Neel R. , Rutar Frank , Aronow Herbert D. 
Published: December 2017

AbstractBackgroundTranscatheter aortic valve replacement (TAVR) exposes patients to radiation.ObjectivesWe sought to identify factors associated with higher radiation exposure and to quantify their relative influence, which may inform reduction of this hazard.MethodsAll TAVR procedures at Rhode Island Hospital between March 20, 2012 and February 12, 2017 were included. Procedures were performed by two co‐primary operators using a Siemens Artis Zeego system. Radiation metrics were generated by the imaging system. The primary metric was dose‐area product (DAP, Gy*cm2), and secondary metrics were reference point air kerma (mGy) and fluoroscopy time (minutes). Data collected for the STS/ACC TVT Registry were utilized to develop a multivariable linear regression model predicting DAP.ResultsIn 294 TAVRs, median DAP was 169 Gy*cm2 [interquartile range (IQR) 106–238]. The r2 values for the full 27‐variable DAP model and reduced eight‐variable model were 0.457 and 0.420, respectively. Valve area, aortic insufficiency, and procedure year (suggesting absence of a learning curve) were non‐significant predictors in the full model, while increasing weight, cutdown transfemoral access, higher pre‐procedure creatinine and hemoglobin, and vascular complications predicted higher DAP in both models. Results were unchanged when DAP was log‐transformed. Secondary models for air kerma and fluoroscopy time revealed similar predictors.ConclusionFactors associated with increased procedural complexity and duration as well as radiation attenuation and scatter predict increased patient radiation exposure during TAVR. Modification of procedural technique, especially using percutaneous femoral vascular access, may facilitate reduction in exposure.
ANALYSIS OF THE VERTICAL SHEAR DESIGN MODEL FOR STEEL‐CONCRETE COMPOSITE SLABS
Authors: Pereira Miguel , Simões Rui , Duarte João 
Published: December 2017

AbstractUsually, the design of composite slabs with short spans, or with current spans with the longitudinal shear behaviour improved by reinforcing systems, is governed by the vertical shear resistance. Nevertheless, the vertical shear resistance of composite slabs, according with european standard EN 1994‐1‐1, is calculated in the same way as reinforcing concrete slabs, being the contribution of the steel sheet not taken into account adequately. In this paper, a reflection and a comparison between vertical shear design models according different standards or methodologies are presented. It is also presented the results of a short experimental programme, composed by 2 experimental tests in composite slabs with short spans, carried out in the Department of Civil Engineering of University of Coimbra.
COMPARISON OF DESIGN FOR COMPOSITE BEAMS IN STEEL AND CONCRETE ACCORDING TO EUROCODE 4 AND CHINESE DESIGN CODES
Authors: Zhang Qingjie , Schäfer Markus 
Published: December 2017

AbstractIn this article, the design of composite beams in steel and concrete based on EN1994‐1‐1 and Chinese JGJ138‐2016 is compared. In general, design according to Eurocode 4 is more detailed. Differences of effective width between both codes are explained in theory and through parameter studies. Allowance for moment redistribution is also compared. For bending moment resistance, the comparison is carried out with a parameter study on single span beams. For longitudinal shear design, the resistance of shear studs, minimum shear connection degree, the arrangement of shear studs, longitudinal shear resistance in concrete slabs based on both codes are compared.
EFFECT OF AN INTERFACE DEFECT IN A PATCH/LAYER JOINT UNDER DYNAMIC TIME HARMONIC LOAD
Authors: Kirilova Elisaveta G. , Becker Wilfried , Ivanova Jordanka A. , Petrova Tatyana S. 
Published: December 2017

AbstractThe study deals with the response of a smart patch/layer joint with interface defect (gap) subjected to dynamic time harmonic mechanical and electric load at environmental conditions. In order to find the axial displacements, shear stress and interface debond length in a closed analytical form a 1D modified, shear lag analysis is used. At given joint geometry and three different positions of the gap, a genetic algorithm is implemented to find the values of the model parameters at which a vanishing/minimal debond length is ensured. Moreover, for each optimal solution the influence of the length of the gap as well as the model parameters on the length of the interface debond length is investigated.
EXPERIMENTAL ANALYSIS OF UNSTIFFENED CYLINDRICALLY CURVED PANELS
Authors: Ljubinkovic Filip , Martins João Pedro , Gérvasio Helena , da Silva Luís Simões , Leitao Carlos 
Published: December 2017

AbstractThe main goal of this research is to characterize the structural behavior of panels as the individual members under compressive stresses. Two unstiffened curved panels subjected to pure compression are experimentally and numerically examined. The thickness of the panels is constant and equal to 4 mm, whereas the radius is equal to 20 m. The results will be used to calibrate numerical models, which will be further used for the parametric study. One of the main goals of the study is a use of Digital Image Correlation System (ARAMIS) to measure full‐field 3D deformations, strains and stresses of the panel during the load application.
EXPERIMENTAL AND NUMERICAL DYNAMIC ANALYSIS OF STEEL‐CONCRETE COMPOSITE FOOTBRIDGES SUBJECTED TO PEDESTRIANS WALKING
Authors: da Silva Irwing Aguiar Ribeiro , da Silva José Guilherme Santos 
Published: December 2017

AbstractThis research work aims the evaluation of the dynamic structural response of steel‐concrete composite footbridges, based on the experimental tests and numerical modelling. The investigated structural system is related to a real and existing steel‐concrete pedestrian footbridge, which presents two spans of 29.5m and 24m, respectively, and a total extension of 53.5m. The structural model is located at the Osvaldo Aranha Street, next of the new Maracanã Stadium, at the city of Rio de Janeiro/RJ, Brazil. Based on the developed analysis methodology, the dynamic structural response of the investigated footbridge is compared to the limits proposed by design standards and recommendations, aiming to evaluate the performance of the structure when the human comfort is considered.
INFLUENCE OF THE DEGREE OF SHEAR CONNECTION ON THE LOAD CARRYING CAPACITY OF A COMPOSITE BEAM IN FIRE
Authors: Pfenning Samuel , Tresch Jürgen , Pennisi Luca , Brunkhorst Sven , Mensinger Martin 
Published: December 2017

AbstractThis paper discusses the influence of elevated temperatures on the partial connection theory of composite beams with headed stud shear connectors. The load carrying behaviour of headed stud shear connectors in fire situation and its influence on the degree of shear connection of the composite beam is elaborated. Furthermore, the influence of the degree of shear connection on the load carrying behaviour of a single span composite beam is shown. Results suggest, that the degree of shear connection has only influence on the load carrying capacity of composite beams at ambient temperature, at elevated temperatures the softening of the steel section due to the rising temperature is the predominant factor.
NEXT GENERATION OF EUROCODE 3 – EVOLUTION BY IMPROVEMENTS AND HARMONIZATION
Authors: Kuhlmann Ulrike , Schmidt‐Rasche Christina 
Published: December 2017

AbstractThis paper gives an overview on recent work regarding the revision of EN 1993 on European level including selected scientific and technical issues and a summary of the activities executed within the European Standardization committee CEN/TC250/SC3 “Design of Steel Structures” under the chair of Prof. Dr.‐Ing. Ulrike Kuhlmann. This includes the description of current normative developments for the 2nd generation of Eurocodes which aim at an evolution by improvements and harmonization of the existing codes. More specific tasks are described to be realized by Project Teams in the frame of the so‐called Mandate M/515 to further develop all Eurocodes. In addition, a technical review of selected rules is given on a number of issues, which support the code revision and reflect well the recent tendencies in steel structures.
ROBUSTNESS, REDUNDANCY AND PROGRESSIVE COLLAPSE OF FIXED OFFSHORE STRUCTURES
Authors: Refachinho Miguel , Rigueiro Constança , Martins João Pedro , Matos Rui 
Published: December 2017

SummaryThe purpose of this paper is to present an evaluation of the robustness of fixed offshore structures, through the understanding of, i) major historical accidents, and its repercussions in the codes and regulations, ii) review the methods used to assure robustness, with special focus in offshore standards, but also with civil Eurocodes; iii) Robustness assessment and measurement and, iv) which factors and mechanical properties of structures influences robustness. To be able to measure the Robustness of a structure under accidental or unforeseen events it is necessary to quantify its ultimate capacity and establish its post collapse behaviour. Therefore, a case study consisting of Non‐Linear analysis (pushover) of a four‐legged jacket is developed using USFOS software, where several structural properties are made variable and the effect in the robustness is measured.
SEISMIC RESPONSE OF STEEL MOMENT FRAMES WITH SEMI‐CONTINUOUS JOINTS
Authors: SATO Atsushi , WALD František 
Published: December 2017

AbstractLoad action due to seismic is computed based on design spectrum, where it is determined by elastic response spectrum and behaviour factor. The difference of cyclic behaviour of the dissipative zones may influence the energy absorption capacity; semi‐continuous joints that are allowed to use in steel moment frames may affect the response of the structure under seismic event. However, Ch.6 in EN 1998–1:2004 does not have any specific rules that can evaluate the semi‐continuous joints effects. Time‐history analysis under 44 ground motions was conducted, and the effect of semi‐continuous joints to the maximum storey drift ratio was evaluated. Finally, sample result that can evaluate the joint effect was shown.
SIMPLE FIRE DESIGN OF COLD‐FORMED STEEL C‐SECTION BEAMS WITH LATERAL–TORSIONAL BUCKLING
Authors: Laím Luís , Rodrigues João Paulo C. 
Published: December 2017

AbstractFire design rules for cold‐formed steel beams are commonly based on past research on hot‐rolled steel beams. Hence this paper present a methodology for calculating the fire response of unrestrained cold‐formed steel C‐section flexural members, based on guidelines of EN1993‐1.2 for fire design of steel beams and on results of experimental and numerical studies. European fire design rules were found to be unsafe or over‐conservative, depending on their relative slenderness and serviceability load applied on the beams. Therefore, new formulae for lateral–torsional buckling of unrestrained cold‐formed steel C‐section flexural members, which approximate better their real behaviour in case of fire, are proposed. Comparison with numerical moment capacities demonstrates the accuracy of the new design methodology.
Suifficent choice of material to avoid brittle fractures of foundation components of offshore wind power plants made of steel in accordance with EC3 part 1‐10
Authors: Kühn Bertram , Krieglstein Tim 
Published: December 2017

AbstractThe choice of material for steel constructions in maritime environments, e.g. wind power plants, is not included in EC3 yet. On the other hand rules for a suifficent choice of material for structures in maritime environments do not exist. Till now, no physically based design method for the choice of steel grade in such environments exist. But a suitable and demand oriented choice of steel grade is very important for an economic design. A failure due to brittle fracture is avoided by a suitable choice of steel grade or rather by limitation of the maximum plate thickness. A physically based design method is given in EC3 part 1–10. Here table 2.1 shows the values of the maximum plate thickness in dependence of the steel grade and reference temperature. All data in table 2.1 were determined on the basis of assumptions with a clear focus on bridge constructions. Therefore, it is doubtful if table 2.1 can also be used for offshore wind power plants. For example crack growth parameters (constants in Paris‐law) have an influence on the brittle fracture design which are different for regular conditions of bridges in comparison to maritime environments. A research project was carried out at the University of applied sciences Mittelhessen (THM). As a first step it was investigated which individual boundary conditions differ between bridge construction and foundations in maritime environments. In the second step tabulated values of the maximum plate thickness with the adapted boundary conditions were determined based on the same calculation algorithm as EC3 part 1‐10. Finally a recommendation for the practice‐oriented use of Table 2.1 was developed for foundation components of offshore wind power plants.
Room‐Temperature Phosphorescence in Pure Organic Materials: Halogen Bonding Switching Effects
Authors: Xiao Lu , Wu Yishi , Yu Zhenyi , Xu Zhenzhen , Li Jinbiao , Liu Yanping , Yao Jiannian , Fu Hongbing 
Published: December 2017

AbstractOrganic room‐temperature phosphorescence (ORTP), when combined with external stimuli‐responsive capability, is very attractive for sensors and bio‐imaging devices, but remains challenging. Herein, by doping two β‐iminoenamine‐BF2 derivatives (S‐2CN and S‐2I) into a 4‐iodoaniline (I−Ph−NH2) crystalline matrix, the formation of S‐2CN⋅⋅⋅I−Ph−NH2 and S‐2I⋅⋅⋅I−Ph−NH2 halogen bonds leads to bright‐red RTP emissions from these two host–guest doped crystals (hgDCs) with quantum efficiencies up to 13.43 % and 15.96 %, respectively. Upon treatment with HCl, the competition of I−Ph−NH2⋅HCl formation against S‐2I⋅⋅⋅I−Ph−NH2 halogen bonding switches off the red RTP from S‐2I/I−Ph−NH2 hgDCs, whereas the stable halogen‐bonded S‐2CN⋅⋅⋅I−Ph−NH2 ensures red RTP from S‐2CN/I−Ph−NH2 hgDCs remains unchanged. A security protection luminescence pattern by using these different HCl‐responsive RTP behaviors was designed.
Synthesis of Nanostructured Mat as Flexible Electrode for Advanced Lithium Ion Batteries Via Electrospinning
Authors: Liu Jifei , Dai Jianfeng , Wang Qing , Li Weixue 
Published: December 2017

AbstractThe ions transport channel like network structure is build between active materials, due to its unique low dimensional properties. Microstructure indicates that the tiny LiFePO4 nanoparticles with average size of ≈7–9 nm embedded in the amorphous carbon matrix. When the LiFePO4‐CNFs is directly applied as flexible cathode electrode for lithium‐ion battery, which has high initial discharge capacity of 134 mAh g−1 at 0.5 C (1C = 170 mAh g−1) rate and stability cycling performance after 300 cycles. Further electrochemistry investigation reveals that the flexible one‐dimentional structure of CNFs enable it to release the mechanical deformation resulting from lithium ion insert and extract the electrodes, which resulted in a superior diffusion coefficient of lithium ions up to 2.4 × 10−12 cm2 s−1.
Reinforcing the Holistic Perspective of Sustainability: Analysis of the Importance of Sustainability Drivers in Organizations
Authors: Lozano Rodrigo , von Haartman Robin 
Published: December 2017

AbstractAlthough several sustainability drivers have been recognized for different organizations, there has been limited research on analyzing which are considered to be the most important. A survey was sent to more than 1,502 organizations, of which 108 completed all the questions. The survey responses were analyzed using descriptive statistics, rankings in order of importance, comparison between types of organizations, and analyses of the interlinkages between drivers. This paper provides depth to the sustainability drivers’ discussion by: (1) expanding it to the three types of organizations; (2) providing the importance of each driver; (3) offering a ranking of the drivers; (4) analyzing the relations between drivers to categorize them; and (5) assessing the relations between the drivers’ categories. This research highlights the importance of recognizing the drivers that have the highest importance and influence for each type of organization, in order to foster them and make organizations more sustainable. Copyright © 2017 John Wiley & Sons, Ltd and ERP Environment
Starbon/High‐Amylose Corn Starch‐Supported N‐Heterocyclic Carbene–Iron(III) Catalyst for Conversion of Fructose into 5‐Hydroxymethylfurfural
Authors: Matharu Avtar S. , Ahmed Suleiman , Almonthery Badriya , Macquarrie Duncan J. , Lee Yoon‐Sik , Kim Yohan 
Published: December 2017

AbstractIron–N‐heterocyclic carbene complexes (Fe‐NHCs) have come to prominence because of their applicability in diverse catalytic reactions, ranging from C−C cross‐coupling and C−X bond formation to substitution, reduction, polymerization, and dehydration reactions. The detailed synthesis, characterization, and application of novel heterogeneous Fe‐NHC catalysts immobilized on mesoporous expanded high‐amylose corn starch (HACS) and Starbon 350 (S350) for facile fructose conversion into 5‐hydroxymethylfurfural (HMF) is reported. Both catalyst types showed good performance for the dehydration of fructose to HMF when the reaction was tested at 100 °C with varying time (10 min, 20 min, 0.5 h, 1 h, 3 h and 6 h). For Fe‐NHC/S350, the highest HMF yield was 81.7 % (t=0.5 h), with a TOF of 169 h−1, fructose conversion of 95 %, and HMF selectivity of 85.7 %, whereas for Fe‐NHC/expanded HACS, the highest yield was 86 % (t=0.5 h), with a TOF of 206 h−1, fructose conversion of 87 %, and HMF selectivity of 99 %. Iron loadings of 0.26 and 0.30 mmol g−1 were achieved for Fe‐NHC/expanded starch and Fe‐NHC/S350, respectively.
Transfer function‐matched capacitor‐current sensing and its circuit implementation for high‐frequency power converters
Authors: Lu Weiguo , Yan Shidong , Yang Yidi , Fang Huimin 
Published: December 2017

SummaryIt would effectively achieve a fast load transient response in switching‐mode power converters when introducing capacitor current into the feedback control loop. In these schemes, an accurate and rapid sensing of capacitor current is crucial in the control circuit design. On this issue, a paralleled nonintrusive sensing scheme for capacitor current is proposed in this paper, which is implemented by matching the transfer functions of the sensing circuit and the sensed capacitor branch. With the proposed transfer function matching approach, 4 possible circuit topologies are derived in theory, and on this basis, a parameter design flow chart is given for 2 of candidate topologies. With the application of the proposed capacitor‐current sensing circuit to a constant‐frequency hysteresis controlled Buck converter, a fast and accurate sensing of capacitor current is achieved in experiment, as well as a fast load transient response.