bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Modified Procedure for the Preparation of 5‐Nitro‐2‐furylmethylene Diacetate and Its Use in the Synthesis of Some Novel (5‐Nitro‐2‐furyl)azomethines via 5‐Nitro‐2‐furaldehyde.
Authors: VLAOVIC D. , MILIC B. LJ. , MACKENZIE K. 
Published: May 2016

AbstractA series of title compounds such as (VII) or (IX) are prepared (29 examples).
ChemInform Abstract: Allylation‐Assisted Addition of Nitromethane to 2H‐1‐Benzopyran‐2‐ones Substituted in Position 3.
Authors: BOJILOVA A. , KOSTADINOVA T. , IVANOV C. 
Published: May 2016

AbstractThe addition of the nitro compounds (II) to benzopyran derivatives, e.g. (I), proceeds without ring opening only in the presence of All‐Br (III).
Greatly Enhanced Stability of Supported Copper Nanocatalyst with a Thin Nitrogen‐Doped Carbon Overlayer for Transfer Dehydrogenation
Authors: Hu Qi , Yang Lan , Fan Guoli , Li Feng 
Published: May 2016

AbstractIn the present study, we report a facile synthetic approach for supported copper nanocatalysts with a thin nitrogen‐doped carbon (CN) overlayer. This Cu@CN catalyst was directly generated by a thermal decomposition of Cu‐Al layered double hydroxide (CuAl‐LDH)/melamine hybrid precursor, and employed in the liquid‐phase transfer dehydrogenation of primary aliphatic alcohols. The strategy was found to be useful for the formation of a very thin in situ formed CN overlayer of 0.5–0.7 nm in thickness on copper nanoparticles of about 8.5 nm in diameter. Compared with uncoated copper‐based catalyst derived from pristine CuAl‐LDH, as‐fabricated Cu@CN catalyst showed significantly enhanced catalytic activity, which was attributed to the surface cooperative effect among strong Lewis base sites originating from the CN layer, well‐dispersed Cu0 nanoparticles and Cu+ species, thereby greatly promoting the activation of hydroxyl group in primary aliphatic alcohols and the following abstraction and transfer of hydrogen. Most importantly, the thin CN overlayer could successfully stabilize copper nanoparticles, thus preventing the leaching and the growth of copper species over the course of the reaction. This work offers a new strategy for fabricating cost‐effective, highly efficient and extremely stable supported copper catalysts for the transfer dehydrogenation of primary aliphatic alcohols.
Amperometric Biosensor for Continuous Monitoring Irgarol 1051 in Sea Water
Authors: Salvador J.‐Pablo , Marco M.‐Pilar 
Published: May 2016

AbstractIrgarol 1051 is one of the most employed antifouling agents and is one of the most commonly found in marine environment. According to its widespread use the European Comission turned its attention on this agent as one of the priority substances that has to be controlled. The aim of this article is to develop an immunosensor for the determination of Irgarol 1051 in sea water for implementation in a flow analysis system. The transducing principle employed for its development was an amperometric detection using gold screen printed electrodes which were functionalized for the covalent immobilization of the immunoreagents. The detection of Irgarol 1051 was performed using specific antibodies working under competitive indirect format. The immunosensor was demonstrated to measure directly in sea water with high detectability, accurately and robust. The system allows consecutive measurements using the same chip owing to an easy regeneration process. The limit of detection reached was 0.15±0.09 nM (0.038±0.022 µg ⋅ L−1) measured directly in sea water.
Study of the damage of reinforced concrete shear walls during the 2010 Chile earthquake
Authors: Jünemann Rosita , de la Llera Juan C. , Hube Matías A. , Vásquez Jorge A. , Chacón Matías F. 
Published: May 2016

SummaryReinforced concrete shear wall buildings have shown, in statistical terms, an adequate performance in past seismic events. However, a specific damage pattern was observed in 2010 Chile earthquake in some shear walls located in the lower building stories, usually associated with high axial stresses, lack of transverse reinforcement, and vertical irregularity. Results show that the nature of this failure led to a sudden degradation in strength and stiffness of walls and resulted in very limited ductility. This research aims to study analytically this damage pattern of shear wall buildings during the 2010 earthquake. By starting with two‐dimensional inelastic pushover finite element models using diana, two walls that were severely damaged during the earthquake were studied in detail using different load patterns and stress–strain constitutive relationships for concrete in compression. These models were validated with experimental data of four reinforced concrete walls available in the literature. It can be shown that the geometry of the damage in the building walls cannot be correctly represented by conventional pushover load patterns that ignore the lateral and axial interaction. Indeed, the failure mechanism of walls shows strong coupling between lateral and vertical deformations within the plane of the wall. Results shown for a three‐dimensional inelastic analysis of the building are consistent with these two‐dimensional results, and predict a brittle failure of the structure. However, these models predict a large increase in axial load in the walls, which needs to be validated further with more experimental and analytical studies. Copyright © 2016 John Wiley & Sons, Ltd. Copyright © 2016 John Wiley & Sons, Ltd.
Stabilization of sunflower oil with pussy willow (Salix aegyptiaca) extract and essential oil
Authors: Sayyari Zahra , Farahmandfar Reza 
Published: May 2016

AbstractThe aim of present study was to evaluate antioxidant efficacy of pussy willow extract (PWE) and essential oil (PWEO) in stabilization of sunflower oil (SFO) during ambient storage (60 days at 25°C). Initially, total phenolic (TP) and total flavonoid (TF) contents were evaluated. Then, PWE, PWEO, and TBHQ were added to SFO. Peroxide value (PV), carbonyl value (CV), total polar compound (TPC), acid value (AV), and Oxidative stability index (OSI) were measured every 15 days. The results showed that PWE had higher TP and TF than PWEO (TP: 966.72 mg GAE/g and 355.8472 mg GAE/g, respectively; TF: 619.45 mg/100 g and 195.45 mg/100 g, respectively). Furthermore, according to all stabilization parameters, PWE had higher antioxidant efficacy followed by TBHQ, PWEO, and control, respectively. Therefore, PWE has antioxidant activity and it may be recommended as natural strong antioxidants to suppress lipid oxidation.
Selective visual attention to emotional words: Early parallel frontal and visual activations followed by interactive effects in visual cortex
Authors: Schindler Sebastian , Kissler Johanna 
Published: May 2016

AbstractHuman brains spontaneously differentiate between various emotional and neutral stimuli, including written words whose emotional quality is symbolic. In the electroencephalogram (EEG), emotional–neutral processing differences are typically reflected in the early posterior negativity (EPN, 200–300 ms) and the late positive potential (LPP, 400–700 ms). These components are also enlarged by task‐driven visual attention, supporting the assumption that emotional content naturally drives attention. Still, the spatio‐temporal dynamics of interactions between emotional stimulus content and task‐driven attention remain to be specified. Here, we examine this issue in visual word processing. Participants attended to negative, neutral, or positive nouns while high‐density EEG was recorded. Emotional content and top‐down attention both amplified the EPN component in parallel. On the LPP, by contrast, emotion and attention interacted: Explicit attention to emotional words led to a substantially larger amplitude increase than did explicit attention to neutral words. Source analysis revealed early parallel effects of emotion and attention in bilateral visual cortex and a later interaction of both in right visual cortex. Distinct effects of attention were found in inferior, middle and superior frontal, paracentral, and parietal areas, as well as in the anterior cingulate cortex (ACC). Results specify separate and shared mechanisms of emotion and attention at distinct processing stages. Hum Brain Mapp 37:3575–3587, 2016. © 2016 Wiley Periodicals, Inc.
Highly efficient nonrigid motion‐corrected 3D whole‐heart coronary vessel wall imaging
Authors: Cruz Gastão , Atkinson David , Henningsson Markus , Botnar Rene M. , Prieto Claudia 
Published: May 2016

PurposeTo develop a respiratory motion correction framework to accelerate free‐breathing three‐dimensional (3D) whole‐heart coronary lumen and coronary vessel wall MRI.MethodsWe developed a 3D flow‐independent approach for vessel wall imaging based on the subtraction of data with and without T2‐preparation prepulses acquired interleaved with image navigators. The proposed method corrects both datasets to the same respiratory position using beat‐to‐beat translation and bin‐to‐bin nonrigid corrections, producing coregistered, motion‐corrected coronary lumen and coronary vessel wall images. The proposed method was studied in 10 healthy subjects and was compared with beat‐to‐beat translational correction (TC) and no motion correction for the left and right coronary arteries. Additionally, the coronary lumen images were compared with a 6‐mm diaphragmatic navigator gated and tracked scan.ResultsNo significant differences (P > 0.01) were found between the proposed method and the gated and tracked scan for coronary lumen, despite an average improvement in scan efficiency to 96% from 59%. Significant differences (P < 0.01) were found in right coronary artery vessel wall thickness, right coronary artery vessel wall sharpness, and vessel wall visual score between the proposed method and TC.ConclusionThe feasibility of a highly efficient motion correction framework for simultaneous whole‐heart coronary lumen and vessel wall has been demonstrated. Magn Reson Med 77:1894–1908, 2017. © 2016 International Society for Magnetic Resonance in Medicine
Separation of collagen‐bound and porous bone‐water longitudinal relaxation in mice using a segmented inversion recovery zero‐echo‐time sequence
Authors: Marcon Magda , Keller Daniel , Wurnig Moritz C. , Weiger Markus , Kenkel David , Eberhardt Christian , Eberli Daniel , Boss Andreas 
Published: May 2016

PurposeCortical bone mechanical properties are related to the collagen‐bound water (CBW) and pore water (PW) components of cortical bone. The study evaluates the feasibility of zero‐echo‐time imaging in mice in vivo for longitudinal relaxation time (T1) measurements in cortical bone and separation of CBW and PW components.MethodsZero‐echo‐time data were acquired at 4.7 Tesla in six mice with 14 different inversion times (0–2,600 ms). Region‐of‐interest analysis was performed at level of femur diaphysis. The T1 of cortical bone and of CBW (T1cbw) and PW (T1pw) as well as the CBW fraction (cbwf) was computed using a mono‐exponential and a bi‐exponential fitting approach, respectively. The sum of the squared residuals (Res) to the fit was provided for both approaches.ResultsFor the mono‐exponential model, mean T1 ± standard deviation (SD) was 1,057 ± 160 ms. The bi‐exponential approach provided a reliable separation of two different bone‐water components, with a mean T1cbw of 213 ± 95 ms, T1pw of 2,152 ± 894 ms, and cbwf of 7.4 ± 2.7 %. Lower Res was obtained with bi‐exponential approach (P < 0.001), and Res mean values ± SD were 0.016 ± 0.007 (bi‐exponential) and 0.033 ± 0.016 (mono‐exponential).ConclusionZero‐echo‐time imaging allows for longitudinal relaxation measurements of cortical bone in vivo in mice models, with a reliable separation of PW and CBW components using a bi‐exponential curve fitting approach. Magn Reson Med 77:1909–1915, 2017. © 2016 International Society for Magnetic Resonance in Medicine
Electron transport mechanism in rf‐sputtered amorphous zinc oxynitride thin films
Authors: Reinhardt Anna , Frenzel Heiko , von Wenckstern Holger , Spemann Daniel , Grundmann Marius 
Published: May 2016

AbstractAbstractauthoren We discuss the carrier transport mechanism in amorphous zinc oxynitride (ZnON) thin films fabricated by means of long‐throw magnetron sputtering. ZnON films were radio‐frequency sputtered from a metallic zinc target in a reactive atmosphere consisting of , , and Ar. The electrical conductivity of the films was controlled via variation of the deposition pressure and substrate temperature. Room temperature deposition yields amorphous, n‐type semiconducting ZnON thin films with a maximum Hall mobility of and carrier concentrations of . The mobility can be further increased up to the range by moderate substrate heating or annealing up to while maintaining the amorphous phase. From temperature‐dependent Hall effect measurements, we deduced that a percolation conduction model is most likely for the electron transport in the as‐grown ZnON thin films. For annealed samples, a quasi‐metallic behavior is observed.
Correlated probit analysis of repeatedly measured ordinal and continuous outcomes with application to the Health and Retirement Study
Authors: Grigorova D. , Gueorguieva R. 
Published: May 2016

The Health and Retirement Study was designed to evaluate changes in health and labor force participation during and after the transition from working to retirement. Every 2 years, participants provided information about their self‐rated health (SRH), body mass index (BMI), smoking status, and other characteristics. Our goal was to assess the effects of smoking and gender on trajectories of change in BMI and SRH over time. Joint longitudinal analysis of outcome measures is preferable to separate analyses because it allows to account for the correlation between the measures, to test the effects of predictors while controlling type I error, and potentially to improve efficiency. However, because SRH is an ordinal measure while BMI is continuous, formulating a joint model and parameter estimation is challenging. A joint correlated probit model allowed us to seamlessly account for the correlations between the measures over time. Established estimating procedures for such models are based on quasi‐likelihood or numerical approximations that may be biased or fail to converge. Therefore, we proposed a novel expectation–maximization algorithm for parameter estimation and a Monte Carlo bootstrap approach for standard errors approximation. Expectation–maximization algorithms have been previously considered for combinations of binary and/or continuous repeated measures; however, modifications were needed to handle combinations of ordinal and continuous responses. A simulation study demonstrated that the algorithm converged and provided approximately unbiased estimates with sufficiently large sample sizes. In the Health and Retirement Study, male gender and smoking were independently associated with steeper deterioration in self‐rated health and with lower average BMI. Copyright © 2016 John Wiley & Sons, Ltd.
Intraoperative Near‐infrared Imaging for Parathyroid Gland Identification by Auto‐fluorescence: A Feasibility Study
Authors: De Leeuw Frederic , Breuskin Ingrid , Abbaci Muriel , Casiraghi Odile , Mirghani Haïtham , Ben Lakhdar Aïcha , Laplace‐Builhé Corinne , Hartl Dana 
Published: May 2016

AbstractBackgroundParathyroid glands (PGs) can be particularly hard to distinguish from surrounding tissue and thus can be damaged or removed during thyroidectomy. Postoperative hypoparathyroidism is the most common complication after thyroidectomy. Very recently, it has been found that the parathyroid tissue shows near‐infrared (NIR) auto‐fluorescence which could be used for intraoperative detection, without any use of contrast agents. The work described here presents a histological validation ex vivo of the NIR imaging procedure and evaluates intraoperative PG detection by NIR auto‐fluorescence using for the first time to our knowledge a commercially available clinical NIR imaging device.MethodsEx vivo study on resected operative specimens combined with a prospective in vivo study of consecutive patients who underwent total or partial thyroid, or parathyroid surgery at a comprehensive cancer center. During surgery, any tissue suspected to be a potential PG by the surgeon was imaged with the Fluobeam 800 ® system. NIR imaging was compared to conventional histology (ex vivo) and/or visual identification by the surgeon (in vivo).ResultsWe have validated NIR auto‐fluorescence with an ex vivo study including 28 specimens. Sensitivity and specificity were 94.1 and 80 %, respectively. Intraoperative NIR imaging was performed in 35 patients and 81 parathyroids were identified. In 80/81 cases, the fluorescence signal was subjectively obvious on real‐time visualization. We determined that PG fluorescence is 2.93 ± 1.59 times greater than thyroid fluorescence in vivo.ConclusionsReal‐time NIR imaging based on parathyroid auto‐fluorescence is fast, safe, and non‐invasive and shows very encouraging results, for intraoperative parathyroid identification.
Utilization of Waste Glass Micro-particles in Producing Self-Consolidating Concrete Mixtures
Authors: Sharifi Yasser , Afshoon Iman , Firoozjaei Zeinab , Momeni Amin 
Published: May 2016

Abstract
The successful completion of the present research would be achieved using ground waste glass (GWG) microparticles in self-consolidating concrete (SCC). Here, the influences of GWG microparticles as cementing material on mechanical and durability response properties of SCC are investigated. The aim of this study is to investigate the hardened mechanical properties, percentage of water absorption, free drying shrinkage, unit weight and Alkali Silica Reaction (ASR) of binary blended concrete with partial replacement of cement by 5, 10, 15, 20, 25 and 30 wt% of GWG microparticles. Besides, slump flow, V-funnel, L-box, J-ring, GTM screen stability, visual stability index (VSI), setting time and air content tests were also performed as workability of fresh concrete indicators. The results show that the workability of fresh concrete was increased by increasing the content of GWG microparticles. The results showed that using GWG microparticles up to maximum replacement of 15 % produces concrete with improved hardened strengths. From the results, when the amount of GWG increased there was a gradual decrease in ASR expansion. Results showed that it is possible to successfully produce SCC with GWG as cementing material in terms of workability, durability and hardened properties.
The effect of negative experiences on delinquent behavior of youth in a social withdrawal situation
Authors: Chan Gloria Hongyee , Lo T. Wing 
Published: May 2016

ABSTRACTThis study examines the relationship between negative experiences, negative emotions, and delinquent behavior among young people in a social withdrawal situation. There were 533 participants in this study and various quantitative analyses were utilized. Results showed that participants with a longer period of social withdrawal were generally less affected by negative experiences, while those with a higher level of social withdrawal were more affected by negative experiences, particularly negative relationships with other people. Also, both negative emotions and higher level of social withdrawal mediated the relationship between negative experiences and involvement in delinquent behavior, with negative emotions displaying a higher mediating effect. This reflects that the root of delinquent behavior is the negative experiences which arouse negative emotions, rather than the social withdrawal behavior itself. Results imply that practitioners should first explore the negative experiences suffered by these young people, so as to provide them the most appropriate support.
The configuration between supply chain integration and information technology competency: A resource orchestration perspective
Authors: Liu Hefu , Wei Shaobo , Ke Weiling , Wei Kwok Kee , Hua Zhongsheng 
Published: May 2016

AbstractResearch indicates that deploying appropriate information technology (IT) competency in a manner that fits the supply chain integration (SCI) of a firm induces superior firm performance; however, our understanding of how to empirically conceptualize and assess the performance effect of the fit remains limited. Drawing upon resource orchestration theory and the literature on fit assessment methodologies, our study employs both a contingency and a configuration perspective to conceptualize and operationalize “fit.” The results of a survey of 196 firms in China provide the first empirical evidence for the existence and nature of interrelationships between multiple components of SCI and IT competency and their effects on firm performance. In particular, fit as “moderation” approach indicates that IT competency could strengthen the relationship between SCI and both operational and financial performance. Fit as “profile deviation” approach further reveals that the more similar the IT competency configurations are to those of the top performers in the high‐level SCI group, the higher their operational and financial performance are. However, in the medium‐ and low‐level SCI groups, the SCI‐IT competency fit is significantly positively associated with financial performance and insignificantly associated with operational performance. The theoretical contributions and managerial implications of the study are discussed.
PDE5A Polymorphisms Influence on Sildenafil Treatment Success
Authors: Marchal-Escalona Cristobal , Herrera-Imbroda Bernardo , Clemente-Postigo Mercedes , Alcaide-Torres Juan , Quiñonero Antonio , Marchal Marta , Queipo-Ortuño María Isabel , Aragón Isabel María , Martín-Morales Antonio , Lara María Fernanda , Cardona Fernando 
Published: May 2016

ABSTRACT

Introduction
Diabetes and cardiovascular disease are risk factors for erectile dysfunction (ED). Selective inhibitors of the type 5 phosphodiesterase are the first option for treating ED. However, it is unknown why there are patients with low response to this treatment. Polymorphisms in the PDE5A gene may influence the response to PDE5 inhibitors treatment.

Aim
The aim of this study is to analyze the relationship between PDE5A polymorphisms, diabetes, and the efficacy of sildenafil treatment.

Methods
A Spanish prospective cohort of 170 Caucasian male patients diagnosed with ED and ischemic heart disease treated with angioplasty was studied.

Main outcome measures
ED was evaluated according to the 5-item version of the International Index for Erectile Function before and after treatment with sildenafil 50 mg. The gene sequence of the PDE5A gene was analyzed for the presence of rs12646525 and rs3806808 polymorphisms. Glucose and glycosylated hemoglobin levels were measured in blood serum samples. The relationship between treatment response, genotype, and glycemic status was analyzed.

Results
Patients with G-allele of rs3806808 polymorphism showed a worse response to the treatment compared to TT-homozygote patients. Nondiabetic G-allele carriers showed a worse treatment response than TT-homozygotes patients. These differences were not seen in diabetic patients. There were no significant differences in treatment response according to the rs12646525 polymorphism in total population or according to the glycemic status. Logistic regression analysis showed that nondiabetic carriers of the major allele of both the rs12646525 and rs3806808 polymorphism had a significantly higher likelihood to respond to the treatment than diabetic patients carriers of the minor allele (P &lt; .05).

Conclusion
The response to sildenafil treatment depends on polymorphisms in the PDE5A gene and the glycemic status of the patients.