bluuebunny/crossref_metadata_2025_split huggingface dataset:
Residuos químicos en alimentos de origen animal: problemas y desafíos para la inocuidad alimentaria en Colombia
Authors: Lara Dildo Márquez 
Published: August 2016

La inocuidad de los alimentos de origen animal puede verse afectada por residuos de origen químico, lo que constituye un peligro para la salud pública. Las sustancias químicas están ligadas inevitablemente a las explotaciones ganaderas debido al uso de medicamentos para tratar infecciones, infestaciones parasitarias y en los procesos de limpieza y desinfección de utensilios, así como en el control de arvenses. Los residuos de origen químico en los alimentos de origen pecuario son indeseables puesto que pueden ser nocivos para el consumidor. En la actualidad, la presión de los consumidores para que se produzcan alimentos libres de residuos que atentan contra la salud de los seres humanos está jalonando en todo el mundo cambios en los modelos de producción agropecuarios que tienden al desarrollo de sistemas de producción más sostenibles. Si bien en Colombia los conocimientos sobre residualidad química en alimentos son escasos, se están haciendo esfuerzos para superar esta carencia en los sectores gubernamental, académico y de investigación, a fin de llevar al país a una situación favorable respecto de la inocuidad alimentaria que le permita enfrentar adecuadamente los desafíos que plantea el comercio internacional de alimentos.
The transformation of rivers’ temperature regime downstream of reservoirs
Authors: Kirvel Ivan , Kukshinov Mikhail , Kirvel Pavel 
Published: August 2016

Abstract
The article is dedicated to the problem of the transformation of rivers’ temperature conditions influenced by artificial reservoirs. A quantitative estimation of average water temperatures over ten days, and maximum and average annual water temperatures of regulated rivers downstream of reservoirs was made on the basis of the data analysis of a complete period of instrumental observations of the Republican Hydrometeorological Centre of the Republic of Belarus. It is established that the character and the parameters of the transformation of temperature conditions of the regulated rivers along with morphometric features of the reservoirs are determined by the meteorological conditions of the year and the operating conditions of the water-engineering system. The length of the cooling period effect varies from 20 days downstream of small reservoirs to 50-70 days downstream of small and average size reservoirs. The warming effect is less significant by temperature, but lasts longer and is appreciable around 200-240 days in a year. An increase in the average annual water temperature up to 0.5°C and a decrease in maximum temperature down to 1.1°C are observed in the tail-water of average size storage pools. Small size storage pools demonstrate an annual increase in annual water temperature up to 0.3°C and a decrease in maximum temperature down to 0.3°C. Small size water pools show an increase both in annual water temperature up to 0.5°C and maximum water temperature up to 0.3°C. Typical changes in temperature conditions of rivers are observed for a distance of 130 kilometres below the dam of average size water pools, along 70 kilometres in small water pools and along 30 kilometres in tiny ones.
Integration of the LIDAR data and bathymetric measurements in the assessment of water resources and morphometric parameter changes – based on Lake Kiedrowickie
Authors: Piasecki Adam , Skowron Rajmund 
Published: August 2016

Abstract
The aim of this paper was to present the possibility of integrating LIDAR data with bathymetric measurements in order to assess the changes in water resources and morphometric parameters. The area of study was Lake Kiedrowickie (Poland). A change in most of the morphometric parameters has been observed. Especially important was the drop in water resources which amounted to more than 30%. A significant decrease (13.4%) was also observed in case of the lake surface. In conclusion we state that the integration of valid bathymetric measurements with the LIDAR data gives the full capability to model the changes of lake morphometric parameters with unprecedented accuracy. A significant complementarity and synergy of applying both techniques has been stressed.
Developments in large-scale coastal flood hazard mapping
Authors: Vousdoukas Michalis I. , Voukouvalas Evangelos , Mentaschi Lorenzo , Dottori Francesco , Giardino Alessio , Bouziotas Dimitrios , Bianchi Alessandra , Salamon Peter , Feyen Luc 
Published: August 2016

Abstract. Coastal flooding related to marine extreme events has severe socioeconomic impacts, and even though the latter are projected to increase under the changing climate, there is a clear deficit of information and predictive capacity related to coastal flood mapping. The present contribution reports on efforts towards a new methodology for mapping coastal flood hazard at European scale, combining (i) the contribution of waves to the total water level; (ii) improved inundation modeling; and (iii) an open, physics-based framework which can be constantly upgraded, whenever new and more accurate data become available. Four inundation approaches of gradually increasing complexity and computational costs were evaluated in terms of their applicability to large-scale coastal flooding mapping: static inundation (SM); a semi-dynamic method, considering the water volume discharge over the dykes (VD); the flood intensity index approach (Iw); and the model LISFLOOD-FP (LFP). A validation test performed against observed flood extents during the Xynthia storm event showed that SM and VD can lead to an overestimation of flood extents by 232 and 209 %, while Iw and LFP showed satisfactory predictive skill. Application at pan-European scale for the present-day 100-year event confirmed that static approaches can overestimate flood extents by 56 % compared to LFP; however, Iw can deliver results of reasonable accuracy in cases when reduced computational costs are a priority. Moreover, omitting the wave contribution in the extreme total water level (TWL) can result in a  ∼  60 % underestimation of the flooded area. The present findings have implications for impact assessment studies, since combination of the estimated inundation maps with population exposure maps revealed differences in the estimated number of people affected within the 20–70 % range.
MABEL photon-counting laser altimetry data in Alaska for ICESat-2
simulations and development
Authors: Brunt Kelly M. , Neumann Thomas A. , Amundson Jason M. , Kavanaugh Jeffrey L. , Moussavi Mahsa S. , Walsh Kaitlin M. , Cook William B. , Markus Thorsten 
Published: August 2016

Abstract. Ice, Cloud, and land Elevation Satellite-2 (ICESat-2) is scheduled to launch in late 2017 and will carry the Advanced Topographic Laser Altimeter System (ATLAS), which is a photon-counting laser altimeter and represents a new approach to satellite determination of surface elevation. Given the new technology of ATLAS, an airborne instrument, the Multiple Altimeter Beam Experimental Lidar (MABEL), was developed to provide data needed for satellite-algorithm development and ICESat-2 error analysis. MABEL was deployed out of Fairbanks, Alaska, in July 2014 to provide a test dataset for algorithm development in summer conditions with water-saturated snow and ice surfaces. Here we compare MABEL lidar data to in situ observations in Southeast Alaska to assess instrument performance in summer conditions and in the presence of glacier surface melt ponds and a wet snowpack. Results indicate the following: (1) based on MABEL and in situ data comparisons, the ATLAS 90 m beam-spacing strategy will provide a valid assessment of across-track slope that is consistent with shallow slopes (< 1°) of an ice-sheet interior over 50 to 150 m length scales; (2) the dense along-track sampling strategy of photon counting systems can provide crevasse detail; and (3) MABEL 532 nm wavelength light may sample both the surface and subsurface of shallow (approximately 2 m deep) supraglacial melt ponds. The data associated with crevasses and melt ponds indicate the potential ICESat-2 will have for the study of mountain and other small glaciers.
Mémoire émotionnelle et activités électrocorticales en schizophrénie
Authors: Lavoie Marc E. , Champagne Julie , Glaser Emma , Mendrek Adrianna 
Published: August 2016

Contexte L’altération des fonctions émotionnelles ainsi que de la mémoire des personnes atteintes de schizophrénie est connue depuis plus d’un siècle. Toutefois, les structures cérébrales touchées ainsi que les stades de traitement affectés restent encore mal compris.
Objectif Approfondir de quelles façons la valence et l’activation émotionnelle affectent la mémoire épisodique et l’activité cérébrale associée chez des patientes atteintes de schizophrénie.
Hypothèse L’activité des régions frontales associées à certains types de stimuli émotifs sera généralement affectée dans la population clinique, et ce, en réponse aux stimuli à fortes activations émotionnelles.
Participantes Seize patientes atteintes de schizophrénie dans une phase stable de leur maladie furent appariées à 17 participantes contrôles sur la base de l’âge, de la dominance manuelle et du statut socio-économique.
Instrument et mesures L’EEG a été enregistré à partir de 60 électrodes fixées dans un casque en lycra élastique. Ces signaux ont été moyennés pour obtenir les composantes N200, P300, ainsi que la LPC afin de cibler les processus mnésiques et émotionnels.
Résultats Pour la N200 et la P300 frontale, la magnitude de l’effet de mémoire observé chez les patientes schizophrènes est augmentée significativement dans l’hémisphère frontal droit en réponse aux stimuli à valences déplaisantes, alors que l’augmentation de cet effet s’effectue dans les deux hémisphères chez les participantes contrôles.
Conclusion Une altération électrocorticale précoce reflétant la familiarité et la mémoire aux stimuli déplaisants est présente chez les patientes, alors que les processus tardifs de récollection consciente (LPC pariétale) ne seraient pas atteints.
Compressed sensing: Radar signal detection and parameter measurement for EW applications
Authors: Rao M. Sreenivasa , Naik K. Krishna , Reddy K. Maheshwara 
Published: August 2016

AbstractState of the art system development is very much required for UAVs (Unmanned Aerial Vehicle) and other airborne applications, where miniature, lightweight and low‐power specifications are essential. Currently, the airborne Electronic Warfare (EW) systems are developed with digital receiver technology using Nyquist sampling. The detection of radar signals and parameter measurement is a necessary requirement in EW digital receivers. The Random Modulator Pre‐Integrator (RMPI) can be used for matched detection of signals using smashed filter. RMPI hardware eliminates the high sampling rate analog to digital computer and reduces the number of samples using random sampling and detection of sparse orthonormal basis vectors. RMPI explore the structural and geometrical properties of the signal apart from traditional time and frequency domain analysis for improved detection. The concept has been proved with the help of MATLAB and LabVIEW simulations.
Spatial Bayesian hierarchical modeling of precipitation extremes over a large domain
Authors: Bracken C. , Rajagopalan B. , Cheng L. , Kleiber W. , Gangopadhyay S. 
Published: August 2016

AbstractWe propose a Bayesian hierarchical model for spatial extremes on a large domain. In the data layer a Gaussian elliptical copula having generalized extreme value (GEV) marginals is applied. Spatial dependence in the GEV parameters is captured with a latent spatial regression with spatially varying coefficients. Using a composite likelihood approach, we are able to efficiently incorporate a large precipitation data set, which includes stations with missing data. The model is demonstrated by application to fall precipitation extremes at approximately 2600 stations covering the western United States, −125°E to −100°E longitude and 30°N–50°N latitude. The hierarchical model provides GEV parameters on a 1/8° grid and, consequently, maps of return levels and associated uncertainty. The model results indicate that return levels and their associated uncertainty have a well‐defined spatial structure. Maps of return levels provide information about the spatial variations of the risk of extreme precipitation in the western US and is expected to be useful for infrastructure planning.
A fuzzy Bayesian approach to flood frequency estimation with imprecise historical information
Authors: Salinas José Luis , Kiss Andrea , Viglione Alberto , Viertl Reinhard , Blöschl Günter 
Published: August 2016

AbstractThis paper presents a novel framework that links imprecision (through a fuzzy approach) and stochastic uncertainty (through a Bayesian approach) in estimating flood probabilities from historical flood information and systematic flood discharge data. The method exploits the linguistic characteristics of historical source material to construct membership functions, which may be wider or narrower, depending on the vagueness of the statements. The membership functions are either included in the prior distribution or the likelihood function to obtain a fuzzy version of the flood frequency curve. The viability of the approach is demonstrated by three case studies that differ in terms of their hydromorphological conditions (from an Alpine river with bedrock profile to a flat lowland river with extensive flood plains) and historical source material (including narratives, town and county meeting protocols, flood marks and damage accounts). The case studies are presented in order of increasing fuzziness (the Rhine at Basel, Switzerland; the Werra at Meiningen, Germany; and the Tisza at Szeged, Hungary). Incorporating imprecise historical information is found to reduce the range between the 5% and 95% Bayesian credibility bounds of the 100 year floods by 45% and 61% for the Rhine and Werra case studies, respectively. The strengths and limitations of the framework are discussed relative to alternative (non‐fuzzy) methods. The fuzzy Bayesian inference framework provides a flexible methodology that fits the imprecise nature of linguistic information on historical floods as available in historical written documentation.
Supported Gold Nanoparticles‐Catalyzed Microwave‐Assisted Hydration of Nitriles to Amides under Base‐Free Conditions
Authors: Kumar Sandeep , Sharma Saurabh , Das Pralay 
Published: August 2016

AbstractPolystyrene‐supported gold (Au@PS) nanoparticles were synthesized by the reduction deposition approach and well characterized by UV‐visible, XRD, TEM, SAED, EDX, and XPS studies. The Au@PS was applied as catalyst for the hydration of nitriles to amides in water under microwave irradiation. Several functionalized aromatic, heterocyclic and aliphatic nitriles were found to be active for synthesis of the corresponding amides where no activation of water by base, ligand and support is needed. Easy recovery, negligible leaching and recyclability for up to eight runs are added advantages of the catalyst under water‐mediated reaction conditions.magnified image
Influence of Hydrogen on Catalytic Properties of Ziegler‐Natta Catalysts Prepared by Different Methods in Ethylene Polymerization
Authors: Niyomthai Thanyathorn , Ratchadaphet Aniroot , Jongsomjit Bunjerd , Praserthdam Piyasan 
Published: August 2016

AbstractEthylene homopolymerization by two types of Ziegler‐Natta catalyst including ZN‐THF and ZN‐EtOH catalysts was compared. The influences of hydrogen pressure and reaction time on catalytic activity using different types of catalyst were investigated. The EDX analysis and surface area measurement confirmed that ZN‐EtOH catalyst had better active center distribution than that of ZN‐THF. Thus, the ZN‐EtOH catalyst could retard the effect of hydrogen and show higher activity with increased hydrogen pressures. However, catalytic activity was lower with high hydrogen pressure. Moreover, polymerization time also has an influence on activity. Both catalysts showed the similar result where an increase in polymerization time can improve yield of polymer, but it decreased activity. In addition, it is seen that the increase in hydrogen pressure leads to decrease the melting temperature for polyethylenes, but it increases the crystallinity.
A system of delivering medical staff members by helicopter to manage severely wounded patients in an area where medical resources are limited
Authors: Ishikawa Kohei , Omori Kazuhiko , Ohsaka Hiromichi , Jitsuiki Kei , Yoshizawa Toshihiko , Oode Yasumasa , Sakurada Mutsumi , Mogami Atsuhiko , Yanagawa Youichi 
Published: August 2016

AimWe review the case of a severely injured patient to evaluate the system of delivering medical staff by helicopter in areas with limited medical resources.MethodsThe patient's chart was reviewed, summarized, and presented.ResultsA 22‐year‐old woman attempted a suicidal fall after using a knife to stab herself. She was transported to a local hospital. A radiological study revealed fractures to the patient's face and the base of her skull, pneumocephalus, traumatic subarachnoid hemorrhage, stab wounds to the neck and chest, pneumothorax, unstable pelvic fracture, and right femoral shaft fracture. Her circulation status became unstable. We sent medical staff members to the local hospital by doctor helicopter. The patient underwent tracheal intubation and the insertion of a chest drain, and was evacuated by doctor helicopter. After aggressive intensive treatments in our hospital, the patient finally obtained social rehabilitation.ConclusionIn an area where medical resources are limited, sending trained physicians to a referring hospital to appropriately prepare a severely wounded patient for transportation might be the key for the patient to maximize his or her chance of survival.
Inhibition wirkstoffresistenter Mutationsvarianten der Rezeptortyrosinkinase EGFR
Authors: Engel Julian , Becker Christian , Lategahn Jonas , Keul Marina , Ketzer Julia , Mühlenberg Thomas , Kollipara Laxmikanth , Schultz‐Fademrecht Carsten , Zahedi René P. , Bauer Sebastian , Rauh Daniel 
Published: August 2016

AbstractDie zielgerichtete Therapie erworbener Wirkstoffresistenz stellt die größte Herausforderung in der Behandlung von EGFR‐abhängigem nicht‐kleinzelligen Lungenkrebs (NSCLC) dar. Hier berichten wir über die strukturbasierte Entwicklung, Synthese und biologische Evaluierung einer neuen Klasse von kovalenten EGFR‐Inhibitoren, die sich durch eine exzellente Inhibition wirkstoffresistenter, EGFR‐mutierter Zellen auszeichnet. Röntgenkristallstrukturen in Kombination mit Bindungskinetiken führen zu einem tieferen Verständnis des Inhibitionsmechanismus in EGFR‐T790M und liefern Erkenntnisse über Schlüsselaspekte für die effektive Inhibition der kürzlich entdeckten tertiären EGFR‐C797S‐Mutation.
Redox‐Dependent Transformation of a Hydrazinobuckybowl between Curved and Planar Geometries
Authors: Higashibayashi Shuhei , Pandit Palash , Haruki Rie , Adachi Shin‐ichi , Kumai Reiji 
Published: August 2016

AbstractA red‐fluorescent heterobuckybowl with an embedded hydrazine structure was synthesized from a cyclobiphenothiazine derivative via a strained cyclobicarbazole. The hydrazinobuckybowl was found to possess bowl and twist structures in the neutral state, a shallow bowl structure in the monocation state, and a planar structure in the dication state by means of X‐ray crystallographic analysis, DFT calculations, and a comparison of experimental and calculated 13C NMR chemical shifts. The hydrazinobuckybowl is the first buckybowl that changes its geometry between curved bowl/twist structures and a planar structure depending on the oxidation state. The drastic geometrical change was possible as a result of the presence of two heteroatoms in the bowl skeleton and the multiple reversible redox reactions of the compound. Owing to the two kinds of bowl and twist conformations, the bowl‐inversion dynamics of the hydrazinobuckybowl were found to follow a triple‐well potential model.
Enantiodivergent Atroposelective Synthesis of Chiral Biaryls by Asymmetric Transfer Hydrogenation: Chiral Phosphoric Acid Catalyzed Dynamic Kinetic Resolution
Authors: Mori Keiji , Itakura Tsubasa , Akiyama Takahiko 
Published: August 2016

AbstractReported herein is an enantiodivergent synthesis of chiral biaryls by a chiral phosphoric acid catalyzed asymmetric transfer hydrogenation reaction. Upon treatment of biaryl lactols with aromatic amines and a Hantzsch ester in the presence of chiral phosphoric acid, dynamic kinetic resolution (DKR) involving a reductive amination reaction proceeded smoothly to furnish both R and S isomers of chiral biaryls with excellent enantioselectivities by proper choice of hydroxyaniline derivative. This trend was observed in wide variety of substrates, and various chiral biphenyl and phenyl naphthyl adducts were synthesized with satisfactory enantioselectivities in enantiodivergent fashion. The enantiodivergent synthesis of synthetically challenging, chiral o‐tetrasubstituted biaryls were also accomplished, and suggests high synthetic potential of the present method.
Preparation and characterization of innovative cellulose diacetate/epoxy resin blends modified by isophorone diamine
Authors: Ye Ming , Zhu Nianqing , Ni Zhongbin , Dong Weifu , Chen Mingqing 
Published: August 2016

ABSTRACTCellulose diacetate (CA)/epoxy resin (EP) blends with excellent mechanical performance were prepared with simple blending followed by curing with isophorone diamine (IPDA). The reaction between the amino groups of IPDA and epoxide groups of EP was confirmed by Fourier transform infrared spectroscopy. Scanning electron microscopy revealed that the cured EP particles gradually became larger and closer to each other to form semi‐interpenetrating polymer networks in the CA matrix; this contributed to the improved mechanical properties of the CA/EP blends. Dynamic rheological experiments indicated that the CA/EP blends with semi‐interpenetrating polymer networks retained processability. After the introduction of a low content (5–10 phr) of IPDA, the mechanical properties of the CA/EP blends were significantly enhanced. With the addition of 20–30‐phr IPDA, the CA/EP blend exhibited a tensile strength of 77 MPa, a flex strength of 65 MPa, a flex modulus of 2.6 GPa, and a hardness of 94 HD; these values were much higher than those of the pristine CA/EP binary blend. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 44151.
Improving thermo‐oxidative degradation resistance of bamboo fiber reinforced polymer composites with antioxidants. Part II: Effect on other select properties
Authors: Ren D. , Zhang X. X. , Wang H. K. , Li W. J. , Yu Y. 
Published: August 2016

ABSTRACTThe first of this two‐article study showed that the addition of antioxidants can significantly improve the thermo‐oxidative resistance of bamboo fiber reinforced polypropylene composites (BFPCs). In this article, the effect of antioxidants on water absorption, thermal stability, crystallinity, and the dynamic mechanical properties of the composites were investigated. The results showed that the addition of antioxidants resulted in a slight increase in water absorption, but this increase can be reduced by controlling the ratio of the primary and secondary antioxidants. The glass transition temperature (Tg) of composites also slightly increased. However, the effects of antioxidants on the crystallinity as well as other thermal properties of BFPCs were small or even insignificant. The different combinations, ratios, and the adding amounts of antioxidants show tiny differences for all these properties. As a whole, the addition of minor antioxidants in the bamboo fiber (BF) polymer composites will not produce obvious negative effects on their overall performances. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 44199.