bluuebunny/crossref_metadata_2025_split huggingface dataset:
Salt‐assisted acetonitrile extraction and HPLC‐QTOF‐MS/MS detection for residues of multiple classes of pesticides in human serum samples
Authors: Yin Xue‐feng , Fang Bing , Zhang Xiao‐xu , Li Jin‐wang , Li Yi‐xuan 
Published: July 2020

AbstractDetecting pesticide residues in human serum is a challenging process. In this study we developed and validated a method for the extraction and recovery of residues of multiple classes of pesticides from serum using one reagent. Salt‐assisted acetonitrile extraction and high‐performance liquid chromatography with quadrupole time of flight tandem mass spectrometry were used to quantitate 34 pesticides classified in nine groups of chemicals in human serum samples, which are frequently detected in food. The recoveries for 33 of analyzed pesticides ranged from 86 to 112% with relative standard deviations below 15%. The limits of quantitation and linearity of 31 of the pesticides were 1 µg/L and >0.990, respectively. The lower limit of quantitation has been reported in the literature particularly for multi‐classes pesticide mixtures in human serum. The salt–acetonitrile reagent was allowed to achieve good recoveries and detection limits, which could be attributed to salt altering the solvent polarity, preferentially collecting the organic phase in the solution, and promoting the extraction. The developed method was applied for two organophosphate pesticide metabolites, diethylphosphate and 3,5,6‐trichloro‐2‐pyridinol, in serum from rats that were fed a nonlethal quantity of chlorpyrifos. The concentrations of these two were 252.18 ± 15.47 and 0.63 ± 0.23 µg/L, respectively.
Rapid determination of aflatoxin B1 by an automated immunomagnetic bead purification sample pretreatment method combined with high‐performance liquid chromatography
Authors: Zhang Bo , Yu Leitao , Liu Zhenjiang , Lu Hongyang , Fu Xiaoling , Du Daolin 
Published: July 2020

AbstractWe aimed to establish an automated versatile sample preconcentration method based on the modified immunomagnetic beads, which was utilized to enrich for aflatoxin B1 from the matrices. The critical main parameters affecting the extraction efficiency, such as usage amount of immunomagnetic beads, reaction time, elution time, and blending way were investigated. Under the optimized conditions, the content of aflatoxin B1 was analyzed by high‐performance liquid chromatography, the mobile phase consists of water–acetonitrile–methanol (42:18:10, v/v/v), and fluorescence detection was performed with excitation and emission wavelengths at 360 and 440 nm, respectively. Moreover, the performance of preconcentration method was compared with the conventional method based on the immunoaffinity column. The accuracy of two clean‐up methods was within the error range. In addition, the stability and recyclability of the immunomagnetic beads was studied by recycling them five times. The results for the respective analysis in various samples demonstrated that the developed extraction platform provides a promising approach that is simple, rapid, sensitive, and easy to use.
The influence of neophobia and enduring food involvement on travelers' perceptions of wellbeing—Evidence from international visitors to Iran
Authors: Pourfakhimi Shahab , Nadim Zahra , Prayag Girish , Mulcahy Rory 
Published: July 2020

AbstractThis study adopts PERMA as the theoretical lens to analyze the influence of neophobia (reluctance to try new food) and enduring involvement on travelers' perceptions of the contribution of authentic food experiences to their well‐being. Based on a survey of international visitors to Iran, the results show that authentic food experiences are strongly associated with positive emotions and meaningfulness of a trip. Higher food involvement and lower neophobia are associated with stronger perceptions that authentic food experiences contribute to well‐being. Furthermore, this study demonstrates the applicability of the PERMA model for understanding multiple dimensions of well‐being emanating from tourism experiences.
Polarization‐Enabled Steering of Surface Plasmons Using Crossed Reciprocal Nanoantennas
Authors: Tyagi Dhruv , Chen Tzu‐Yu , Huang Chen‐Bin 
Published: July 2020

AbstractDirectional control over optical near‐fields using plasmonic structure is highly desirable for the realization of photonic nanocircuitry. A simple plasmonic nanostructure is designed to allow polarization‐sensitive directional launching and steering of surface plasmon polaritons (SPPs). In the past, polarization‐controlled SPP steering has been limited to wavelength demultiplexing that severely limits the realization of multiple output SPP‐based circuits excited by a monochromatic source. Based on crossed Babinet‐inverted nanoantennas, steering of SPPs in the first quadrant with very high sensitivity to the linear polarization of the exciting source is numerically and experimentally demonstrated. The same device also functions as a power‐splitter under a particular optical polarization. The results of this study can open up a new avenue towards full coherent control of SPPs and should accelerate the pace for the realization of highly functioning next‐generation optical nanocircuits.
Experimental study on the corrosion behavior of X70 steel under asymmetric dynamic DC interference
Authors: Qin Huimin , Du Yanxia , Lu Minxu , Sun Xuepeng , Zhang Yi 
Published: July 2020

AbstractThe corrosion behavior of X70 steel in simulated soil environment under asymmetric dynamic direct current (DC) interference was studied by immersion tests. The experimental results showed that the negatively asymmetric dynamic DC interference would induce localized corrosion. Under the same dynamic period of 160 ±80 s, when the negative half‐wave current density remained stable at −10 mA/cm2 and the positive half‐wave one decreased from 7 to 1 mA/cm2, the equivalent diameters of the localized corrosion zones became smaller and the steel samples demonstrated typical pitting corrosion morphologies. To further explore the effect of asymmetric dynamic DC interference on the localized corrosion behavior of carbon steel, a variety of experimental measurements were carried out including real‐time DC potential monitoring, in‐situ near‐surface pH measurements, cyclic voltammetry, and Mott–Schottky tests. It was found that the localized corrosion behavior was probably related to the breakdown of passive film formed on the metal surface exposed to negatively asymmetric DC current generated high pH conditions.
A Large‐Scale Full GBA1 Gene Screening in Parkinson's Disease in the Netherlands
Authors: den Heijer Jonas M. , Cullen Valerie C. , Quadri Marialuisa , Schmitz Arnoud , Hilt Dana C. , Lansbury Peter , Berendse Henk W. , van de Berg Wilma D.J. , de Bie Rob M.A. , Boertien Jeffrey M. , Boon Agnita J.W. , Contarino M. Fiorella , van Hilten Jacobus J. , Hoff Jorrit I. , van Mierlo Tom , Munts Alex G. , van der Plas Anne A. , Ponsen Mirthe M. , Baas Frank , Majoor‐Krakauer Danielle , Bonifati Vincenzo , van Laar Teus , Groeneveld Geert J. 
Published: July 2020

AbstractBackgroundThe most common genetic risk factor for Parkinson's disease known is a damaging variant in the GBA1 gene. The entire GBA1 gene has rarely been studied in a large cohort from a single population. The objective of this study was to assess the entire GBA1 gene in Parkinson's disease from a single large population.MethodsThe GBA1 gene was assessed in 3402 Dutch Parkinson's disease patients using next‐generation sequencing. Frequencies were compared with Dutch controls (n = 655). Family history of Parkinson's disease was compared in carriers and noncarriers.ResultsFifteen percent of patients had a GBA1 nonsynonymous variant (including missense, frameshift, and recombinant alleles), compared with 6.4% of controls (OR, 2.6; P < 0.001). Eighteen novel variants were detected. Variants previously associated with Gaucher's disease were identified in 5.0% of patients compared with 1.5% of controls (OR, 3.4; P < 0.001). The rarely reported complex allele p.D140H + p.E326K appears to likely be a Dutch founder variant, found in 2.4% of patients and 0.9% of controls (OR, 2.7; P = 0.012). The number of first‐degree relatives (excluding children) with Parkinson's disease was higher in p.D140H + p.E326K carriers (5.6%, 21 of 376) compared with p.E326K carriers (2.9%, 29 of 1014); OR, 2.0; P = 0.022, suggestive of a dose effect for different GBA1 variants.ConclusionsDutch Parkinson's disease patients display one of the largest frequencies of GBA1 variants reported so far, consisting in large part of the mild p.E326K variant and the more severe Dutch p.D140H + p.E326K founder allele. © 2020 The Authors. Movement Disorders published by Wiley Periodicals LLC. on behalf of International Parkinson and Movement Disorder Society.
Wilson's Disease in Finland: A Nationwide Population‐Based Study
Authors: Sipilä Jussi O.T. , Hietala Marja , Kytö Ville , Kaasinen Valtteri 
Published: July 2020

AbstractBackgroundData on the epidemiology and prognosis of Wilson's disease are scarce, and no clinical data are available from Finland.MethodsAll persons diagnosed and treated for Wilson's disease in Finnish hospitals in 1998 to 2017 were identified. Data were collected from national registries and patient charts.ResultsThe point prevalence was 0.45/100,000 (95% confidence interval, 0.29–0.67) on December 31, 2017, but no more than 0.35/100,000 (95% confidence interval, 0.21–0.55) among native Finns. Annual incidence was 0.016/100,000 (95% confidence interval, 0.0093–0.026). Median age at diagnosis was 15.8 years (interquartile range, 8.3–32.2; range, 3.8–48.1 years). Upon presentation, liver damage was observed in 58%, neurological signs and symptoms (most often tremor and dysarthria) in 40%, and 32% of patients were asymptomatic. Patients had poorer long‐term survival (hazard ratio, 2.92 for death; P = 0.005) compared with matched controls.ConclusionsWilson's disease is very rare in Finland. Patients have an increased risk of death indicating an unmet treatment need. © 2020 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society
Indexing Age-0 Walleye Abundance in Northern Wisconsin Lakes before Fall
Authors: Boehm Hadley I. A. , Gostiaux Jason C. , Hansen Gretchen J. A. , Hennessy Joseph M. , Isermann Daniel A. 
Published: July 2020

Abstract
Recruitment of age-0 Walleye Sander vitreus is often indexed using fall electrofishing surveys. However, collecting fish before fall may provide timely information regarding stocking decisions and factors influencing recruitment. We evaluated sampling methods for age-0 Walleye in northern Wisconsin lakes that could be used to assess recruitment in spring and summer. Initial assessments on two lakes indicated surface tows of ichthyoplankton nets at night during May to early June and 0.64-cm-micromesh gill nets set in July provided the highest catches of age-0 Walleye among the methods we evaluated. Additional sampling on 13 lakes over 2 years indicated catch per effort (CPE) of age-0 Walleye using these two methods did not correlate with age-0 CPE in fall electrofishing. However, presence or absence of age-0 Walleye in micromesh gill nets was 92% accurate in predicting whether age-0 CPE in fall electrofishing was ≥15 fish/h, the threshold above which eventual recruitment to the fishery is expected to occur. Micromesh gill netting may provide a useful tool for allocating fingerling Walleye that are stocked in fall, a resource that is often limited due to space and forage constraints associated with propagation. Additionally, our sampling protocol may help to identify timing of potential recruitment bottlenecks occurring in some lakes.
Fluorescent cyclic peptides for cell imaging
Authors: Mendive‐Tapia Lorena , Wang Jinling , Vendrell Marc 
Published: July 2020

AbstractFluorescent cyclic peptides are excellent chemical scaffolds to build optical agents for molecular imaging. In addition to their favorable physicochemical properties, they can be modified with multiple organic fluorophores and generate useful probes for biological assays targeting specific proteins, namely receptors or enzymes. In this article, we review recent advances in the synthetic approaches for the preparation of fluorescent cyclic peptides as well as some of their applications in biological imaging, from in vitro live‐cell imaging studies to in vivo characterization of preclinical models.
Analysis and design of covariance inflation methods using inflation functions. Part 1: Theoretical framework
Authors: Duc Le , Saito Kazuo , Hotta Daisuke 
Published: July 2020

AbstractWe propose a unifying theory for covariance inflation (CI) in the Ensemble Kalman Filter (EnKF) that encompasses all existing CI methods and can explain many open problems in CI. Each CI method is identified with an inflation function that alters analysis perturbations through their singular values. Inflation functions are usually considered as functions of singular values of background or analysis perturbations. However, we have shown that it is more fruitful if inflation functions are viewed as functions of reduction factors of background singular values after assimilation. These factors indeed comprise the spectra of linear transformations between background and analysis perturbations. To be an inflation function, a function has to satisfy three conditions: (a) the functional condition: all reduction factors must increase, (b) the no‐observation condition: when no observations are assimilated, analysis perturbations are identical to background perturbations, and (c) the order‐preserving condition: inflated analysis singular values must have the same order as background singular values. If the upper‐bound condition, that is, inflated analysis error variances must be less than observation error variances, is imposed, the resulting inflation functions are shown to be equivalent to prior inflation functions which are functions of singular values of background perturbations. This condition is necessary if we want to inflate analysis increments in posterior CI. It turns out that the relaxation‐to‐prior‐spread method and the relaxation‐to‐prior‐perturbation method belong to the class of linear inflation functions. In this class, we also have constant inflation functions, multiplicative inflation functions and parameter‐varying linear inflation functions. More interesting, the Deterministic EnKF is found to belong to the class of quadratic inflation functions. This quadratic class introduces an elegant form for computing analysis perturbations through the Kalman gain. Higher‐order polynomial and non‐polynomial forms of inflation functions are less appealing in practice due to high computation cost and difficulty in determining free parameters.
Dressing‐Controlled Quantum Steering in Energy‐Level Cascaded Parametric Amplified Four‐Wave Mixing Processes
Authors: Liu Yuliang , Li Kangkang , Li Wei , Li Sifan , Cai Yin , Zhang Yanpeng 
Published: July 2020

AbstractEinstein–Podolsky–Rosen (EPR) steering for multipartite systems plays an important role in several quantum technologies and applications, e.g., quantum communication and quantum metrology. In this study, an energy‐level cascaded four‐wave mixing (EC‐FWM) process modulated by the dressing effect is proposed to generate three‐ and four‐mode EPR steering in the atomic medium of rubidium. The energy‐level simultaneously cascaded FWM and the energy‐level ordinally cascaded FWM are compared in three‐mode EPR steering, and monogamy relations for Gaussian steerability are also verified. Furthermore, multipartite EPR steerability is controlled by actively adjusting the dressing field. Different types of EPR steerability exhibit different modulation results when the dressing conditions of enhancement and suppression are satisfied. The proposed scheme exhibits advantages such as scalability, flexibility, and simplified experimental setup and can construct controllable large‐scale quantum networks.
Carbon‐Based Adsorbents from Naturally Available Bermuda Grasses: Removal of TDS and Arsenic Ions
Authors: Chini Mrinmoy Kumar , Purohit Smruti , Bheemaraju Amarnath , Chakraborty Tanmoyendu , Singh Kishan Pal , Ivaturi Aruna , Satapathi Soumitra 
Published: July 2020

AbstractIn the present study, we have reported the synthesis of nano porous carbon material (GC) by the thermal treatment of the commonly available Bermuda grasses, and metal oxides doped bio‐compatible polymer chitosan‐GC based porous cross‐linked composites (CHGCCZ) as adsorbent materials for the removal of total dissolved solids (TDS) and efficient removal of arsenic (As(V)) ions from aqueous medium, respectively. The synthesized adsorbents have been characterized by FTIR, PXRD, FESEM, TGA, and the systematic investigations have shown that the incorporation of GCs into cross‐linked matrix makes them porous, more resistant to degradation, and suitable adsorption matrix for the toxic As(V) removal. The presence of As(V) ions is quantified by Inductively Coupled Plasma Optical Emission Spectroscopy (ICP‐OES) measurements. The amount of TDS and arsenic concentration was reduced to the minimum value of 103 ppm (average value∼119 ppm) from 414 ppm and 7.7 ppm from very high concentration of 10.15 ppm, respectively. The recyclability test has also been performed after regeneration of the CHGCCZ and the initial findings has been found to be promising. Therefore, we have systematically investigated the efficacy of TDS removal by GCs and As(V) adsorption properties of metal oxide doped cross‐linked CHGCCZ composite from the aqueous system and demonstrated the regeneration process for CHGCCZ in our study.
Validity and reliability of contingent valuation and life satisfaction measures of welfare: An application to the value of national Olympic success
Authors: Humphreys Brad R. , Johnson Bruce K. , Whitehead John C. 
Published: July 2020

AbstractThe contingent valuation method (CV) has long been used to estimate nonmarket values of environmental and other public goods and amenities. Recently, life satisfaction (LS) measures have been used to estimate nonmarket values. This article empirically compares CV and LS measures of welfare. We elicit willingness‐to‐pay (WTP) estimates for medals won by Canadian athletes and LS measures using Canadian survey data collected before and after the 2010 Winter Olympic Games. These data permit comparative analyses of reliability and validity of CV and LS measures. Both exhibit econometric reliability. CV and LS WTP estimates for medals increase after the Olympics. CV measures of WTP exhibit temporal reliability but LS measures of welfare lack temporal reliability and are significantly greater than CV measures.
Effect of Two Different Drying Methods on Molecular Structure, In Vitro Digestibility and Chemical Properties of Oca Tuber Flour
Authors: Gonzalez‐Cervantes María Eugenia , Palma‐Rodríguez Heidi María , Hernandez‐Uribe Juan Pablo , Guzman‐Ortiz Fabiola Araceli , Vargas‐Torres Apolonio 
Published: July 2020

AbstractOca tuber flours (Oxalis tuberosa) are obtained by freeze‐drying (OFFD) and heat‐drying (OFHD), and their physicochemical, thermal, rheological, antioxidant, and structural properties are studied. Amylose content is 16.03% and 18.81% in OFFD and OFHD, respectively. Total starch, resistant starch, and integrated dietary fiber are higher in OFFD. The thermal properties, final viscosity, and pasting temperature of the flours are not affected by the drying process. The use of heat to obtain Oca tuber flour causes a considerable reduction in total phenolic compounds and antioxidant activity. However, the same process leads to higher digestion rate and glycemic index. Microscopy analysis shows better dispersion of the starch granules (less agglomeration) in OFFD with irregular granule shapes. These results could facilitate the selection of the best method to obtain Oca tuber flour, which could help to expand the use of this tuber as an ingredient in industrial food products.
A new innovation paradigm: European cohesion policy and the retreat of public science in countries in Europe's scientific periphery
Authors: Švarc Jadranka , Dabić Marina , Daim Tugrul U. 
Published: July 2020

AbstractThis article seeks to undertake a critical assessment of the changing position of public science in the entrepreneurial ecosystem of the countries on the periphery of European research. These countries are driven by new innovation paradigm based on entrepreneurship, which are implemented within the European Smart specialization strategy (S3). This article argues that S3 is widely implemented in the cohesion countries and, while it provides substantial resources for science, technology, and innovation, it fails to provide sustainability in the public research sector. This has direct implications for policies concerning innovation and entrepreneurial ecosystems. In order to prove the thesis, the article provides theoretical argumentation for emergence of a new innovation paradigm, driven by the rise of the entrepreneurial ecosystem, its incorporation into S3, and a consequent retreat of science policy in favor of entrepreneurial policy. The empirical analysis is focused on the funding trends seen in the business and public research sectors over the last decade (2008–2017), which have clearly shown that S3 has not contributed, despite expectations, to an increase in public expenditure for science. This signifies S3's neglect of public research within entrepreneurial ecosystems and challenges the ability of S3 to reduce wide disparities in research and innovation performance across the European Union. This ultimately endangers the innovation potential of the entrepreneurial ecosystem itself.
Retracted: Comparative appraisals of legal and institutional framework governing gas flaring in Nigeria's upstream petroleum sector: How satisfactory?
Authors: Olujobi Olusola Joshua , Olusola‐Olujobi Temilola 
Published: July 2020

AbstractRetraction: Olujobi, O.J., & Olusola‐Olujobi, T. (2020). Comparative appraisals of legal and institutional framework governing gas flaring in Nigeria's upstream petroleum sector: How satisfactory?. Environmental Quality Management, https://doi.org/10.1002/tqem.21680The above article from Environmental Quality Management published online on 3 July 2020 in Wiley Online Library (wileyonlinelibrary.com) in Early View has been retracted by agreement between the journal Editor in Chief, Jega Jegatheesan and Wiley Periodicals, LLC. The retraction has been agreed due to unattributed overlap with a previously published article from the same group of authors.