bluuebunny/crossref_metadata_2025_split huggingface dataset:
Lyrics only or lyrics with music? The effect of different lyric conditions on prosocial‐related outcomes
Authors: Yu Yue , Wu Di , Zhang Jian‐Xin , Fang Ping 
Published: May 2019

AbstractSeveral studies have examined the effect of music on prosocial behavior. However, they have not been able to explain whether lyrics with music or lyrics alone influence prosocial behavior. We conducted two studies to investigate this issue. We first validated the influence of prosocial lyrics (relative to neutral lyrics) on prosocial cognition and prosocial emotion (Study 1). Next, we examined the influence of different types of lyrics on prosocial behavior (willingness to participate in unpaid experiments) among college students under different lyric conditions (Study 2). The results are partly consistent with previous findings, and further reveal that lyrics may have an effect on prosocial cognition and emotion, and that different lyric conditions have a significant influence on prosocial behavior. Overall, we used the short‐term effect of the general learning model (GLM) to verify that prosocial lyrics in music can promote prosocial behavior among college students.
Impact of antibiotic treatment duration on outcomes in older men with suspected urinary tract infection: Retrospective cohort study
Authors: Ahmed Haroon , Farewell Daniel , Francis Nick A. , Paranjothy Shantini , Butler Christopher C. 
Published: May 2019

AbstractPurposeClinical guidelines recommend at least 7 days of antibiotic treatment for older men with urinary tract infection (UTI). There may be potential benefits for patients, health services, and antimicrobial stewardship if shorter antibiotic treatment resulted in similar outcomes. We aimed to determine if treatment duration could be reduced by estimating risk of adverse outcomes according to different prescription durations.MethodsThis retrospective cohort study included men aged greater than or equal to 65 years old with a suspected UTI. We compared outcomes in men prescribed 3, 5, 7, and 8 to 14 days of antibiotic treatment in a multivariable logistic regression analysis and 3 versus 7 days in a propensity‐score matched analysis. Our outcomes were reconsultation and represcription (proxy for treatment failure), hospitalisation for UTI, sepsis, or acute kidney injury (AKI), and death.ResultsOf 360 640 men aged greater than or equal to 65 years, 33 745 (9.4%) had a UTI. Compared with 7 days, men prescribed 3‐day treatment had greater odds of reconsultation and represcription (adjusted OR 1.48; 95% CI, 1.25‐1.74) but lower odds of AKI hospitalisation (adjusted OR 0.66; 95% CI, 0.45‐0.97). We estimated that treating 150 older men with 3 days instead of 7 days of antibiotics could result in four extra reconsultation and represcriptions and one less AKI hospitalisation. We estimated annual prescription cost savings at around £2.2 million.ConclusionsAntibiotic treatment for older men with suspected UTI could be reduced to 3 days, albeit with a small increase in risk of treatment failure. A definitive randomised trial is urgently needed.
Self‐assembled polyurea macromer nanodispersion and resulting hybrid polyurea‐acrylic emulsions and films
Authors: Drake Ian , Cardoen Gregoire , Hughes Andrew , Beshah Kebede , Kearns Kenneth L. , Zhang Tianlan , Reffner John , Wolf Casey , Even Ralph 
Published: May 2019

ABSTRACTA polyurea macromer (PUM) was synthesized and dispersed in basic conditions to form self‐assembled nanoparticles (<20 nm dispersions, up to 30 wt % aq. soln.). These nanoparticles enabled surfactant‐free emulsion polymerization to form hybrid polyurea‐acrylic particles despite the absence of a measureable water‐soluble fraction. The Tg of the starting PUM material was a strong function of the PUM's extent of neutralization and hydration (varying between 100 °C and >175 °C) due to changes in hydrogen and ionic bonding. Two separate hybrid polyurea‐acrylic emulsion systems were prepared: one by direct polymerization of (meth)acrylic monomers in the presence of the nanodispersion and a second by a physical blend of PUM nanodispersion with an acrylic latex control. The direct polymerization method resulted in a hybrid emulsion particle size that developed by a mechanism resembling conventional emulsion polymerization and was unlike that described for seeded polyurethane dispersion systems. Film hardness was shown to increase with increasing coating thickness for the hybrid film prepared by direct polymerization. The resulting mechanical properties could be explained by applying mechanical models for a composite foam structure. These results were unprecedented for normal elastomer films. © 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2019, 57, 1373–1388
One‐pot synthesis of organic–inorganic hybrid polyhedral oligomeric silsesquioxane microparticles in a double‐zone temperature controlled microfluidic reactor
Authors: Kibar Güneş , Çalışkan Umutcan , Erdem E. Yegân , Çetin Barbaros 
Published: May 2019

ABSTRACTPolyhedral oligomeric silsesquioxane (POSS) particles are one of the smallest organosilica nano‐cage structures with high multifunctionality that show both organic and inorganic properties. Until now poly(POSS) structures have been synthesized from beginning with a methacryl‐POSS monomer in free‐radical mechanism with batch‐wise methods that use sacrificial templates or additional multisteps. This study introduces a novel one‐pot synthesis inside a continuous flow, double temperature zone microfluidic reactor where the methodology is based on dispersion polymerization. As a result, spherical monodisperse POSS microparticles were obtained and characterized to determine their morphology, surface chemical structure, and thermal behavior by SEM, FTIR, and TGA, respectively. These results were also compared and reported with the outcomes of batch‐wise synthesis. © 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2019, 57, 1396–1403
Diagnostic Potential of Transferrin Glycoforms—A Lectin‐Based Protein Microarray Approach
Authors: Penezić Ana , Križakova Martina , Miljuš Goran , Katrlik Jaroslav , Nedić Olgica 
Published: May 2019

PurposeDisease or a specific condition may cause alteration of human transferrin (hTf) glycosylation pattern. A specific analytical platform, lectin‐based protein microarray, is designed and optimized for the investigation of hTf glycans, attached to the protein core in their native form.Experimental designhTf molecules isolated from healthy persons of different age, diabetes mellitus type 2 (T2DM) or colorectal carcinoma (CRC) patients are used for method validation. Reliability of the results is ensured by three criteria for the evaluation of hTf–lectin interactions: i) signal‐to‐noise ratio above 3, ii) signal intensity above 250 arbitrary units, and iii) hTf concentration ensuring high sensitivity of the assay.ResultsSix lectins, out of fourteen tested, satisfy the criteria. hTf is spotted at concentration of 50 µg mL−L. When physiological samples (isolated hTf) are analyzed, the highest potential to differentiate between population groups expresses Aleuria aurantia (AAL), Triticum vulgaris (WGA) and Phaseolus vulgaris (PHA‐E) lectins. The initial amount of hTf which can be analyzed is very low (75 pg).Conclusion and clinical relevanceResults confirm that a very sensitive, high‐throughput lectin‐based protein microarray platform can be formulated to detect changes in hTf glycan structures which can be considered as biomarkers of ageing or a disease.
Robust stabilization of spacecraft attitude motion under magnetic control through time‐varying integral sliding mode
Authors: Sofyalı Ahmet , Jafarov Elbrous M. 
Published: May 2019

SummaryMagnetic spacecraft attitude control is suitable for missions with moderate pointing and stabilization requirements. It would be especially preferable if an implemented three‐axis magnetic control law guarantees global and moreover robust stabilization. Motivated by this consideration, in this work, the integral sliding mode control method is successfully applied to the purely magnetic attitude control problem for the first time in literature. The resulting magnetic integral sliding mode control system, which is designed via Lyapunov's direct method by taking the four major environmental disturbance torques and the full inertia matrix uncertainty into account, has the expected insensitivity against environmental disturbances in the plane of continuous actuation. Along the instantaneous direction of underactuation, which continuously varies in control space as the satellite moves along the orbit, there is no counteraction to perturbations. However, as seen in the results of the high‐fidelity simulation, state trajectories are ultimately bounded in the vicinity of the reference state independently from the initial state thanks to the proven robustness of the global stability. Performance robustness of the obtained control system against disturbances and model uncertainty is evaluated to be superior through a couple of comparisons with existing control laws even though it is partial due to the intrinsic underactuation in the system.
A comparative review of network meta‐analysis models in longitudinal randomized controlled trial
Authors: Tallarita Marta , De Iorio Maria , Baio Gianluca 
Published: May 2019

Network meta‐analysis (NMA) technique extends the standard meta‐analysis methods, allowing pairwise comparison of all treatments in a network in the absence of head‐to‐head comparisons. Traditional NMA models consider a single endpoint for each trial. However, in many cases, trials in the network have different durations and/or report data at multiple time points. Moreover, these time points are often not the same for all trials. In this work, we review the most relevant methods that incorporate multiple time points and allow indirect comparisons of treatment effects across different longitudinal studies. In particular, we focus on the mixed treatment comparison developed by Dakin et al,[10] on the Bayesian evidence synthesis techniques—integrated two‐component prediction developed by Ding et al,[11] and on the more recent method based on fractional polynomials by Jansen et al.[12] We highlight the main features of each model and illustrate them in simulations and in a real data application. Our study shows that methods based on fractional polynomials offer a flexible modeling strategy in most applications.
Nonproportional hazards and unobserved heterogeneity in clustered survival data: When can we tell the difference?
Authors: Balan Theodor Adrian , Putter Hein 
Published: May 2019

Multivariate survival data are frequently encountered in biomedical applications in the form of clustered failures (or recurrent events data). A popular way of analyzing such data is by using shared frailty models, which assume that the proportional hazards assumption holds conditional on an unobserved cluster‐specific random effect. Such models are often incorporated in more complicated joint models in survival analysis.If the random effect distribution has finite expectation, then the conditional proportional hazards assumption does not carry over to the marginal models. It has been shown that, for univariate data, this makes it impossible to distinguish between the presence of unobserved heterogeneity (eg, due to missing covariates) and marginal nonproportional hazards. We show that time‐dependent covariate effects may falsely appear as evidence in favor of a frailty model also in the case of clustered failures or recurrent events data, when the cluster size or number of recurrent events is small. When true unobserved heterogeneity is present, the presence of nonproportional hazards leads to overestimating the frailty effect. We show that this phenomenon is somewhat mitigated as the cluster size grows.We carry out a simulation study to assess the behavior of test statistics and estimators for frailty models in such contexts. The gamma, inverse Gaussian, and positive stable shared frailty models are contrasted using a novel software implementation for estimating semiparametric shared frailty models. Two main questions are addressed in the contexts of clustered failures and recurrent events: whether covariates with a time‐dependent effect may appear as indication of unobserved heterogeneity and whether the additional presence of unobserved heterogeneity can be detected in this case. Finally, the practical implications are illustrated in a real‐world data analysis example.
An exploratory study on cooccurrence of design patterns and bad smells using software metrics
Authors: Sousa Bruno L. , Bigonha Mariza A. S. , Ferreira Kecia A. M. 
Published: May 2019

SummaryA design pattern is a general reusable solution to commonly recurring problems in software projects. Bad smells are symptoms existing in the source code that possibly indicate the presence of a structural problem that requires code refactoring. Although design pattern and bad smells be different concepts, literature has shown that they may be related and cooccur during the evolution of a software system. This paper presents an empirical study that investigates cooccurrences of design patterns and bad smells as well as identifies the main factors that contribute to the emergence of the relationship between them. We carried out a case study with five Java systems to: (1) investigate if the use of design pattern reduces bad smell occurrence, (2) identify cooccurrences of design patterns and bad smells, and (3) identify situations that contribute for the cooccurrence emergence. As the main result, we found that the application of design pattern not necessarily avoid bad smell occurrences. The results also show that some design patterns such as composite, factory method, and singleton, are intrinsically modular and might be useful in creating high‐quality systems. However, other design patterns such as adapter‐command, proxy, and state‐strategy, have presented high cooccurrence frequency with bad smells; therefore, they require attention in their implementation. Finally, via manual inspection in the components with cooccurrence, we found that the identified cooccurrences appeared due to poor planning and inadequate application of design patterns.
Strength development and acid resistance of geopolymer based on waste clay brick powder and phosphorous slag
Authors: Vafaei Mostafa , Allahverdi Ali 
Published: May 2019

AbstractThis study aims to investigate the strength development and durability of geopolymer mortars based on waste clay brick powder (WCBP) and phosphorus slag exposed to acid attack. WCBP was partially replaced with slag (8, 16, and 24 wt%) and resulting blends were activated by an aqueous solution of NaOH and sodium silicate with different SiO2/Na2O ratios (MS) and Na2O concentrations. The optimized geopolymer mortar specimens were also immersed in sulfuric and hydrochloric acid solutions of pH = 1 for 6 months to assess changes in their physical and structural properties. The results were compared with those of Portland cement and high alumina cement mortars as control specimens. The key durability parameters measured were the evaluation of mass change, compressive strength loss, and deteriorated depth. Complementary studies were also carried out using X‐ray diffractometry, Fourier transform infrared spectroscopy, and scanning electron microscopy in line with energy dispersive X‐ray techniques to quantify the compositional and microstructural changes. The results demonstrate a potential of value‐added reuse application for WCBP by adding a suitable amount of slag. The findings also showed that geopolymer mortars were less susceptible to acid attack than the control mortars; however, superior enhancement in durability properties was not achieved.
Investigation on properties of coarse reclaimed aggregates and their effects on concrete strength and workability
Authors: Ly Boi T. , Far Harry 
Published: May 2019

AbstractFresh concrete waste is constantly generated in concrete batch plants during the production of ready‐mix concrete, and this waste is generally dumped in landfills. Natural aggregates are a finite resource and therefore there is a need to recycle this fresh concrete waste. An on‐site reclaimer can recycle fresh concrete waste to produce reclaimed aggregate (RA) and eliminate the need to dump fresh concrete waste in landfills. This study investigates the properties of coarse RAs sampled from an Australian concrete batch plant. It was observed that the particle size distribution was highly varied, while particle density and water absorption were similar to their parent aggregate. It was also found that concrete containing coarse RAs exhibited a higher workability and lower compressive strength than concrete containing natural coarse aggregates. Utilization of coarse RAs in concrete application is a viable option; however, more research will need to be conducted in this area.
Tracer test analysis using flow and transport simulation code and new analytical transport model 27 April 2019
Authors: Mitrinović David , Kovačević Srđan , Vojt Predrag , Pušić Milenko , Dimkić Milan 
Published: May 2019

AbstractA convergent flow field tracer test, in two phases, with injection of sodium chloride solution, was conducted on a pumping well and neighboring piezometers belonging to the Kovin–Dubovac area drainage system, on the Serbian sector of the Danube River. The initial goal was to determine the values of hydrogeological parameters in order to analyze the results of the subsequent experiments involving injection of the selected solutes. SEAWAT code (through the Visual Modflow™ 2011 interface), as well as the newly developed analytical model for multilayer setting (1D transport solution for tracer injected as a Dirac impulse in a radial convergent flow field), was used to develop and calibrate a model of the studied portion of the aquifer. The new analytical model demonstrated a very good match to the measured values and to the results of numerical simulation, which indicates that it can be of great utility in characterizing transport conditions.Practitioner points

Results confirm the conclusions of research papers on tracer tests that 10‐m scale tests regularly point to heterogeneous aquifer.

New analytical 1D radial transport model for multilayer setting demonstrated a very good match with numerical simulation and experimental data.

Developed analytical model is usable for characterizing transport conditions in a radial convergent multilayer flow field or other settings.
Boundary element analysis of 3D shell‐like rigid electrically conducting inclusions in anisotropic thermomagnetoelectroelastic solids
Authors: Pasternak Iaroslav , Sulym Heorhiy , Ilchuk Nataliia 
Published: May 2019

AbstractThe paper presents general boundary element approach for analysis of thermomagnetoelectroelastic solids containing shell‐like electrically conducting inclusions with high magnetic permittivity. The latter are modeled with opened surfaces with certain boundary conditions on their faces. Rigid displacement and rotation, along with constant electric and magnetic potentials of inclusions are accounted for in these boundary conditions. Formulated boundary value problem is reduced to a system of singular boundary integral equations, which is solved numerically by the boundary element method. Special attention is paid to the field singularity at the front line of a shell‐like inclusion. Special shape functions are introduced, which account for this square‐root singularity and allow accurate determination of field intensity factors. Approaches for fast and accurate numerical evaluation of anisotropic thermomagnetoelectroelastic kernels are discussed, which are crucial in derivation of fast and precise boundary element approach. Numerical examples are presented.
Distraction by deviant sounds: disgusting and neutral words capture attention to the same extent
Authors: Parmentier Fabrice B. R. , Fraga Isabel , Leiva Alicia , Ferré Pilar 
Published: May 2019

Abstract
Several studies have argued that words evoking negative emotions, such as disgust, grab attention more than neutral words, and leave traces in memory that are more persistent. However, these conclusions are typically based on tasks requiring participants to process the semantic content of these words in a voluntarily manner. We sought to compare the involuntary attention grabbing power of disgusting and neutral words using them as rare and unexpected auditory distractors in a cross-modal oddball task, and then probing the participants’ memory for these stimuli in a surprise recognition task. Frequentist and Bayesian analyses converged to show that, compared to a standard tone, disgusting and neutral auditory words produced significant but equivalent levels of distraction in a visual categorization task, that they elicited comparable levels of memory discriminability in the incidental recognition task, and that the participants’ individual sensitivity to disgust did not influence the results. Our results suggest that distraction by unexpected words is not modulated by their emotional valence, at least when these words are task-irrelevant and are temporally and perceptually decoupled from the target stimuli.
Predicting mental health improvement and deterioration in a large community sample of 11- to 13-year-olds
Authors: Wolpert Miranda , Zamperoni Victoria , Napoleone Elisa , Patalay Praveetha , Jacob Jenna , Fokkema Marjolein , Promberger Marianne , Costa da Silva Luís , Patel Meera , Edbrooke-Childs Julian 
Published: May 2019

AbstractOf children with mental health problems who access specialist help, 50% show reliable improvement on self-report measures at case closure and 10% reliable deterioration. To contextualise these figures it is necessary to consider rates of improvement for those in the general population. This study examined rates of reliable improvement/deterioration for children in a school sample over time. N = 9074 children (mean age 12; 52% female; 79% white) from 118 secondary schools across England provided self-report mental health (SDQ), quality of life and demographic data (age, ethnicity and free school meals (FSM) at baseline and 1 year and self-report data on access to mental health support at 1 year). Multinomial logistic regressions and classification trees were used to analyse the data. Of 2270 (25%) scoring above threshold for mental health problems at outset, 27% reliably improved and 9% reliably deteriorated at 1-year follow up. Of 6804 (75%) scoring below threshold, 4% reliably improved and 12% reliably deteriorated. Greater emotional difficulties at outset were associated with greater rates of reliable improvement for both groups (above threshold group: OR = 1.89, p < 0.001, 95% CI [1.64, 2.17], below threshold group: OR = 2.23, p < 0.001, 95% CI [1.93, 2.57]). For those above threshold, higher baseline quality of life was associated with greater likelihood of reliable improvement (OR = 1.28, p < 0.001, 95% CI [1.13, 1.46]), whilst being in receipt of FSM was associated with reduced likelihood of reliable improvement (OR = 0.68, p < 0.01, 95% CI [0.53, 0.88]). For the group below threshold, being female was associated with increased likelihood of reliable deterioration (OR = 1.20, p < 0.025, 95% CI [1.00, 1.42]), whereas being from a non-white ethnic background was associated with decreased likelihood of reliable deterioration (OR = 0.66, p < 0.001, 95% CI [0.54, 0.80]). For those above threshold, almost one in three children showed reliable improvement at 1 year. The extent of emotional difficulties at outset showed the highest associations with rates of reliable improvement.