bluuebunny/crossref_metadata_2025_split huggingface dataset:
Detecting bird movements with L‐band avian radar and S‐band dual‐polarization Doppler weather radar
Authors: Gauthreaux Sidney A. , Shapiro Ann‐Marie , Mayer Dave , Clark Barry L. , Herricks Edwin E. 
Published: December 2018

AbstractMarine surveillance radars with X‐band (3‐cm) and S‐band (10‐cm) wavelengths not only detect birds but also record return from insects, rain, ground objects and rough seas that often make discrimination of echoes from birds difficult. We compare the density of bird tracks recorded by an L‐band (ca. 23‐cm wavelength) avian radar at the Dallas/Fort Worth International Airport that does not detect insects and rain with the amount of mean bird reflectivity in resolution cells of a dual‐polarization S‐band Doppler weather surveillance radar. Radar data files of 1.5° scans gathered near midnight from January through May for the years 2014, 2015 and 2016 were processed by filtering radar resolution cells to retain only those with backscatter differential phase values characteristic of birds flying more or less perpendicular to the radar beam. In general, increases and decreases in the density of bird movements were correlated significantly between the two radars, but the lowR2values confirm that results obtained from one radar cannot be used to make quantitative estimates for the other. A decrease in the mean biomass index of migrating birds from January through May, and the difference in coverage volume and resolution between the two radars likely account for the lowR2values. Each type of radar has advantages and provides important information on bird movements at different spatial scales.
SingaCycleTM‐A1‐Catalyzed Successive Suzuki‐Miyaura and Buchwald Couplings for the Synthesis of Various New Pyridine Analogues
Authors: Anusha Gokanapalli , Reddy Motakatla Venkata Krishna , Govardhana Reddy Peddiahgari Vasu 
Published: December 2018

AbstractA new diversified, rapid and easily accessible, N‐heterocyclic carbene based palladacycle, SingaCycleTM‐A1 exploited for the cross coupling reactions on heterocyclic amines. This Pd‐NHC catalyst is considered to be merely stable and takes part in dynamic conversion of various organic functionalities. Herein, we report its first time use in the synthesis of C‐ and N‐ diaryl/ heteroaryl pyridine analogues from the less active parent 5‐bromopyridine‐2‐amine via sequential Suzuki‐Miyaura and Buchwald couplings. Surprisingly, both the coupling reactions proceed very smoothly and efficiently under mild reaction conditions in green solvent system (ethanol:water) at a faster rate. Moreover 1 mol% of the catalyst is sufficient to proceed the reactions and obtain comparatively better results.
Immobilization of Palladium on Modified Nanoparticles and Its Catalytic Properties on Mizoroki‐Heck Reaction
Authors: Asadbegi Sajad , Bodaghifard Mohammad Ali , Alimohammadi Elham , Ahangarani‐Farahani Rezvan 
Published: December 2018

AbstractPalladium is immobilized on modified magnetic nanoparticles via coordination with organic tags, characterized and is used as a highly effective and versatile catalyst for Mizoroki‐Heck reaction. The structure of this novel hybrid catalyst is confirmed by Fourier transform infrared, energy‐dispersive (EDS), X‐ray diffraction, transmission and scanning electron microscopy, ICP/OES, vibrating sample magnetometry and thermogravimetric analysis techniques. A wide range of substrates was coupled successfully under aerobic condition and good yields. Furthermore, this catalyst can be easily recovered by using a magnetic field and directly reused for at least six cycles without significant loss of its activity.
Synthetic Methodologies for Chelating Polymer Ligands: Recent Advances and Future Development
Authors: Dzhardimalieva Gulzhian I. , Uflyand Igor E. 
Published: December 2018

AbstractThis review summarizes recent progress in synthetic methodologies of chelating polymer ligands such as linear, branched, cross‐linked, grafted polymers, polymer films, liquid crystal polymers, dendrimers, star‐shaped and hyperbranched polymers. The features of methods for producing chelating polymer ligands are considered in detail: free‐radical (co)polymerization, living/controlled radical, metathesis, grafted, chemical oxidized, microwave‐assisted and asymmetric polymerization, electropolymerization, cyclopolymerization, polycondensation, post‐polymerization modification, click chemistry methods and “green” synthesis. The main directions of the development of synthetic chemistry of chelating polymeric ligands are analyzed. The bibliography includes works published in the last five years.
Influence of Polyunsaturated Fatty Acid Alkyl Esters on Biodiesel Fuel Properties: Optimization and Assessment
Authors: Singh Sunita , Sadhu Tithli , Dutta Susmita , Chakrabarty Jitamanyu 
Published: December 2018

AbstractThis work focuses on better understanding of how or in what way the individual polyunsaturated fatty acid alkyl esters contained in biodiesel are affecting the fuel properties. Effect of two such important polyunsaturated fatty acid alkyl esters (methyl linoleate and methyl linolenate) are analysed by optimizing their concentration using Response Surface Methodology. Alterations in the concentration of these fatty acid esters have produced evident changes in biodiesel fuel properties. Statistical analysis with R2 values of 0.8914 and 0.9845 imply that the model is substantial and fatty acid esters have vital impact on fuel density. Results suggest that methyl linolenate has significant effect on specific gravity of biodiesel proposing that methyl linolenate regulates the density of the fuel. Hence, enriching the biodiesel source with defined concentration of methyl linolenate might govern some critical parameters like engine output power and cetane number of fuel. Furthermore, biodiesel blends of five different oils have been compared to examine the scope of modifications needed to achieve higher percentage of biodiesel in the practically used blends.
Disposed Dry Cells as Sustainable Source for Generation of Few Layers of Graphene and Manganese Oxide for Solid‐State Symmetric and Asymmetric Supercapacitor Applications
Authors: Das Himadri Tanaya , Saravanya Selvaraj , Elumalai Perumal 
Published: December 2018

AbstractRecycling electronic wastes (e‐wastes) is one of the steps to build greener and cleaner environment. In this work, re‐using of disposed dry cell (zinc‐carbon battery) components to generate graphene and manganese oxide for energy storage application has been demonstrated. The obtained materials have been characterized by X‐ray diffraction, Fourier transformed infrared spectroscopy, Raman spectroscopy and scanning electron microscope. The electrochemical performances of the generated graphene and the MnO2 have been examined in 1M H2SO4. The symmetric (MnO2|PVA:H2SO4|MnO2) and asymmetric (Graphene|PVA:H2SO4|MnO2) supercapacitors were fabricated and their performances were evaluated. The fabricated proto‐type asymmetric device delivered energy density as high as 68 W h kg‐1 at power density of 8010 W kg‐1 with a wide operating potential up to 1.6 V. The device had a long life of 5000 cycles with high Coulombic efficiency as high as 90 %. The observed such an excellent electrochemical performances are attributed to the large surface area and high conductivity of the graphene nanonetwork and nanoporous MnO2 extracted from the disposed dry cell. The two asymmetric proto‐type devices connected in series could light an LED for about 10 min in one charge.
Nanoplumbing with 2D Metamaterials
Authors: Dangi Saroj , Riehn Robert 
Published: December 2018

AbstractComplex manipulations of DNA in a nanofluidic device require channels with branches and junctions. However, the dynamic response of DNA in such nanofluidic networks is relatively unexplored. Here, the transport of DNA in a 2D metamaterial made by arrays of nanochannel junctions is investigated. The mechanism of transport is explained as Brownian motion through an energy landscape formed by the combination of the confinement free energy of DNA and the effective potential of hydrodynamic flow, which both can be tuned independently within the device. For the quantitative understanding of DNA transport, a dynamic mean‐field model of DNA at a nanochannel junction is proposed. It is shown that the dynamics of DNA in a nanofluidic device with branched channels and junctions is well described by the model.
Site‐Selective and van der Waals Epitaxial Growth of Rhenium Disulfide on Graphene
Authors: Seo Jihyung , Lee Junghyun , Jeong Gyujeong , Park Hyesung 
Published: December 2018

AbstractThe surface property of growth substrate imposes significant influence in the growth behaviors of 2D materials. Rhenium disulfide (ReS2) is a new family of 2D transition metal dichalcogenides with unique distorted 1T crystal structure and thickness‐independent direct bandgap. The role of growth substrate is more critical for ReS2 owing to its weak interlayer coupling property, which leads to preferred growth along the out‐of‐plane direction while suppressing the uniform in‐plane growth. Herein, graphene is introduced as the growth substrate for ReS2 and the synthesis of graphene/ReS2 vertical heterostructure is demonstrated via chemical vapor deposition. Compared with the rough surface of SiO2/Si substrate with dangling bonds which hinders the uniform growth of ReS2, the inert and smooth surface nature of graphene sheet provides a lower energy barrier for migration of the adatoms, thereby promoting the growth of ReS2 on the graphene surface along the in‐plane direction. Furthermore, patterning of the graphene/ReS2 heterostructure is achieved by the selective growth of ReS2, which is attributed to the strong binding energy between sulfur atoms and graphene surface. The fundamental studies in the role of graphene as the growth template in the formation of van der Waals heterostructures provide better insights into the synthesis of 2D heterostructures.
Realization of distributed system models using code generation extensions
Authors: Hasanagić Miran , Tran‐Jørgensen Peter W. V. , Nilsson René S. , Larsen Peter Gorm 
Published: December 2018

SummaryDevelopment of distributed software systems is complex due to the distribution of resources, which complicates validation of system‐wide functionality. Such systems include various facets like functionality and distribution, each of which must be validated and integrated in the final software solution. Model‐based techniques advocate various abstraction approaches to cope with such challenges. To enhance model‐based development, this paper proposes (1) guidelines for development of distributed systems, where the different facets are introduced gradually through systematic modeling extensions, (2) code generation capabilities supporting technology specific realizations, and (3) demonstration of the applicability of our approach using an industrial case study involving the development of a harvest planning system, where the communication infrastructure paradigm changed late in the project. When developing this system, we spent most time validating system‐wide functionality. The model extensions allowed an easier change of the underlying communication paradigm and code generation supported realization of the different system representations.
Isolation of two major sesquiterpenes from the leaf essential oil of Eugenia uniflora by preparative‐scale high‐speed countercurrent chromatography
Authors: Marques André M. , de Aquino Victor Hugo C. , Correia Virginia G. , Siani Antonio Carlos , Tappin Marcelo Raul R. , Kaplan Maria Auxiliadora C. , Figueiredo Maria Raquel 
Published: December 2018

AbstractThe high‐speed countercurrent chromatography technique was employed to isolate two major compounds from the leaf essential oil of Eugenia uniflora L. (Myrtaceae). The volatile extract of Eugenia uniflora obtained by hydrodistillation was analyzed by gas chromatography coupled with flame ionization detection and gas chromatography coupled with mass spectrometry and shown to be almost exclusively constituted by sesquiterpenes, in which (+/‐)‐selina‐1,3,7(11)‐trien‐8‐one (A) and (+/‐)‐selina‐1,3,7(11)‐trien‐8‐one epoxide (B) were largely predominant. These two major compounds were separated by submitting the crude essential oil to countercurrent chromatography using hexane/acetonitrile 1:1 v/v as the solvent system, running in both the tail‐to‐head (mode I) and head‐to‐tail (mode II) modes. Upon running in mode I, a single application of the crude oil (800 mg) in the separation equipment coil afforded 78.2 mg of B (> 97.5% purity). Running in mode II produced 24.7 mg of A (92.5% purity) and 46.3 mg (93.1% purity) of B. The purity of each compound was determined by GC. For the first time, this technique was shown to be efficient to separate sesquiterpenes that are structurally very similar, affording high‐purity products in a short time with significant solvent savings.
Numerical study of the static and dynamic characteristics of reinforced concrete cassette structures for high‐rise buildings
Authors: Chen Zhi‐Peng , Wu Gang , Feng De‐Cheng , Ma Ke‐Jian 
Published: December 2018

SummaryHigh‐rise buildings are extensively built in China, and the structure of these buildings is composed of different types of conventional system of which framed structures are more commonly employed. A new cassette structure with advantageous performance properties is proposed. Static and dynamic numerical simulations were applied to investigate the characteristics of this new structure. First, the components and other details are presented. A comparative analysis was conducted between the cassette structure and traditional structures using eight finite models with fiber elements in three different heights. A static pushover analysis and an incremental dynamic analysis were conducted based on 18 near‐ground motion records recommended by the Federal Emergency Management Agency. The seismic characteristics, deformation curve, interstory drift, roof displacement, and fragility curve are investigated. Based on the analysis of the models with three different heights and the variety of seismic records, the economic advantage and application of cassette structures for building industrialization are also discussed.
Combined Plaque Incision, Buccal Mucosa Grafting, and Additional Tunica Albuginea Plication for Peyronie’s Disease
Authors: Cormio Luigi , Mancini Vito , Massenio Paolo , d’Altilia Nicola , Selvaggio Oscar , Di Fino Giuseppe , Selvaggi Gennaro , Carrieri Giuseppe 
Published: December 2018

Abstract

Introduction
Surgery remains the gold standard for treatment in stable patients with penile deformity associated to Peyronie’s disease (PD).

Aim
To evaluate the long-term results of plaque incision and buccal mucosa grafting (BMG), with or without additional tunica albuginea plication (TAP), in the correction of severe penile curvatures secondary to PD.

Methods
72 patients with severe curvature caused by PD, normal erections, and stable disease entered this prospective study. Preoperatively, they underwent penile duplex ultrasounds with measurement of curvature and length of affected side. All procedures were carried out by 1 surgeon. Patients were seen at 1, 3, 6, and 12 months postoperatively, then yearly. Subjective outcome was assessed by the Sexual Encounter Profile (SEP) questionnaire, and objective outcome was assessed by an intracavernous injection (ICI) test performed within the first year for evaluating penile rigidity, straightness, and length.

Main Outcome Measure
Long-term outcomes include penile straightening, penile shortening, and sexual satisfaction.

Results
Mean curvature was 71.32 ± 17.6° (range 40–110); 33 (45.8%) patients had a 2-sided curvature with a mean second curvature of 33.79 ± 12.2° (range 10–60). Additional TAP was needed in 60% of patients for complete straightening or graft stretching. All patients resumed unassisted intercourse 1 month after surgery; 4 (5.5%) refused follow-up, claiming excessive penile shortening. In the remaining 68, the ICI test showed no recurvature, shortening, or de novo erectile dysfunction. At mean follow-up of 62.01 ± 34.3 months (range 12–135), all were able to obtain an erection (SEP-1), 97.1% to penetrate (SEP-2), and 89.7% to successfully complete intercourse (SEP-3); 80.9% of them were satisfied with erection hardness (SEP-4) and 86.8% were overall satisfied (SEP-5), with the main reason for dissatisfaction being expectation of better length and rigidity.

Conclusion
BMG, with or without TAP, provides excellent long-term results and is safe and reproducible, representing a valuable treatment option for PD, but great care should be taken in patient counseling to avoid unrealistic expectations.
Rehabilitation‐induced brain changes detected through magnetic resonance imaging in children with neurodevelopmental disorders: A systematic review
Authors: Izadi‐Najafabadi Sara , Rinat Shie , Zwicker Jill G. 
Published: December 2018

AbstractAimThe aim of this study was to systematically review evidence about rehabilitation‐induced neuroplasticity measured by magnetic resonance imaging (MRI) in children with neurodevelopmental disorders.MethodThe following databases were searched: MEDLINE, EMBASE, CINAHL, and PsycINFO. Two independent reviewers screened articles according to inclusion criteria: (1) peer‐review study published in a scientific journal; (2) studies that evaluated a rehabilitation‐based intervention; (3) participants aged less than 19 years with a neurodevelopmental disorder; and (4) studies that used at least one MRI modality as an outcome measure. Twenty‐seven studies met the criteria for the review and their quality was assessed by two independent reviewers using the Effective Public Health Practice Project Quality Assessment Tool.ResultsBased on an assessment of bias and overall quality, 11% of the papers were rated as strong; 30% moderate; and 59% weak. Outcomes were categorized into structural connectivity, functional connectivity, cortical activation, and structural volume. Cortical activation and structural connectivity were the most commonly reported measures. Most studies were able to identify brain changes in children with neurodevelopmental disorders after therapy.InterpretationsRehabilitation is shown to induce MRI‐detectable neuroplastic changes in children with neurodevelopmental disorders. Structural connectivity might need greater intensity and/or duration of intervention to induce change.
Environmental and individual predictors of 25-hydroxyvitamin D concentrations in Denmark measured from neonatal dried blood spots: the D-tect study
Authors: Keller Amélie , Frederiksen Peder , Händel Mina N. , Jacobsen Ramune , McGrath John J. , Cohen Arieh S. , Heitmann Berit L. 
Published: December 2018

AbstractEnvironmental factors such as sunshine hours, temperature and UV radiation (UVR) are known to influence seasonal fluctuations in vitamin D concentrations. However, currently there is poor understanding regarding the environmental factors or individual characteristics that best predict neonatal 25-hydroxyvitamin D (25(OH)D) concentrations. The aims of this study were to (1) identify environmental and individual determinants of 25(OH)D concentrations in newborns and (2) investigate whether environmental factors and individual characteristics could be used as proxy measures for neonatal 25(OH)D concentrations. 25-Hydroxyvitamin D3 (25(OH)D3) was measured from neonatal dried blood spots (DBS) of 1182 individuals born between 1993 and 2002. Monthly aggregated data on daily number of sunshine hours, temperature and UVR, available from 1993, were retrieved from the Danish Meteorological Institute. The individual predictors were obtained from the Danish National Birth register, and Statistics Denmark. The optimal model to predict 25(OH)D3 concentrations from neonatal DBS was the one including the following variables: UVR, temperature, maternal education, maternal smoking during pregnancy, gestational age at birth and parity. This model explained 30 % of the variation of 25(OH)D3 in the neonatal DBS. Ambient UVR in the month before the birth month was the best single-item predictor of neonatal 25(OH)D3, accounting for 24 % of its variance. Although this prediction model cannot substitute for actual blood measurements, it might prove useful in cohort studies ranking individuals in groups according to 25(OH)D3 status.
Nutrition therapy for the management of cancer-related fatigue and quality of life: a systematic review and meta-analysis
Authors: Baguley Brenton J. , Skinner Tina L. , Wright Olivia R. L. 
Published: December 2018

AbstractCancer-related fatigue (CRF) is one of the most commonly reported disease- and treatment-related side effects that impede quality of life. This systematic review and meta-analysis describes the effects of nutrition therapy on CRF and quality of life in people with cancer and cancer survivors. Studies were identified from four electronic databases until September 2017. Eligibility criteria included randomised trials in cancer patients and survivors; any structured dietary intervention describing quantities, proportions, varieties and frequencies of food groups or energy and macronutrient consumption targets; and measures of CRF and quality of life. Standardised mean differences (SMD) were pooled using random-effects models. The American Dietetic Association’s Evidence Analysis Library Quality Checklist for Primary Research was used to evaluate the methodological quality and risk of bias. A total of sixteen papers, of fifteen interventions, were included, comprising 1290 participants. Nutrition therapy offered no definitive effect on CRF (SMD 0·18 (95 % CI –0·02, 0·39)) or quality of life (SMD 0·07 (95 % CI –0·10, 0·24)). Preliminary evidence indicates plant-based dietary pattern nutrition therapy may benefit CRF (SMD 0·62 (95 % CI 0·10, 1·15)). Interventions using the patient-generated subjective global assessment tool and prescribing hypermetabolic energy and protein requirements may improve quality of life. However, the heterogeneity seen in study design, nutrition therapies, quality-of-life measures and cancer types impede definitive dietary recommendations to improve quality of life for cancer patients. There is insufficient evidence to determine the optimal nutrition care plan to improve CRF and/or quality of life in cancer patients and survivors.
Dietary n-3 PUFA content as a modulator of the femur properties in growing pigs
Authors: Sobol Monika , Skiba Grzegorz , Raj Stanisława 
Published: December 2018

AbstractThe relationships between both dietary and empty body fatty acid composition and the morphometry, densitometry, geometry and biomechanical properties of the femur of growing pigs were analysed. A total of thirty-two pigs aged 115 d were divided into four groups (n 8 per group). The pigs were fed either a control diet (group C) or a diet supplemented with linseed oil (rich in α-linolenic acid (C18 : 3n-3), group L), fish oil (rich in EPA (C20 : 5n-3) and DHA (C22 : 6n-3), group F) and beef tallow (rich in SFA, group T). The diets differed in n-3 PUFA contents (0·63–18·52 g/kg) and n-6:n-3 PUFA ratios (0·91–14·51). At 165 d of age, the pigs were slaughtered and the fatty acids in the empty body were determined. Moreover, the left femur was dissected. The cortical wall thickness, cross-sectional area, cortical index, bone mineral content, bone mineral density, maximum elastic strength and maximum strength were lower (P<0·05) in the femurs of pigs from groups C and T than in those from groups F and L. Significant positive correlations were found between the densitometry, geometry and biomechanical properties of the femur and both dietary and empty body n-3 PUFA content, whereas significant negative correlations were observed between the same properties and both dietary and empty body n-6:n-3 PUFA ratio. The results of the present study suggest that in growing pigs α-linolenic acid has a similar positive effect on bone health to that of EPA and DHA.