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A methodological framework for improving air quality monitoring network *** to environment management

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Journal of Environmental Sciences 2021年第4期33卷 138-147页

作者： David galán-Madruga Department of Atmospheric Pollution National Center for Environment HealthHealth Institute Carlos IIICtra.Majadahonda a Pozuelo km 2228220 MadridSpain

This work aims to provide a methodology framework which allows to improve the performance and efficiency of an air quality monitoring network(AQMN).It requires to be constituted by a minimum and reliable number of measurement ***,the AQMN efficiency should be assessed over time,as a consequence of the possible emergence of new emission sources of air pollutants,which could lead to variations on their spatial distribution within the target ***_(10)particles data monitored by the Community of Madrid's(Spain)AQMN between 2008 and 2017 were used to develop a methodology to optimize the AQMN *** annual spatial distribution of average PM_(10)levels over the studied period monitored by all current stations vs those more representative was provided by a geographic information system(GIS),and the percentage of similarity between both postulates was quantified using simple linear regression(>95%).As one innovative tool of this study,the practical application of the proposed methodology was validated using PM_(10)particles data measured by AQMN during 2007 and 2018,reaching a similitude degree higher than 95%.The influence of temporal variation on the proposed methodological framework was around 20%.The proposed methodology sets criteria for identifying non-redundant stations within AQMN,it is also able to appropriately assess the representativeness of fixed monitoring sites within an AQMN and it complements the guidelines set by European legislation on air pollutants monitoring at fixed stations,which could help to tackle efforts to improve the air quality management.

关键词： Air quality Ambient air monitoring network PM_(10)particles Redundant stations Optimization Environment management

Recent advances and future therapy development for Alzheimer’s disease and related disorders

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Neural Regeneration Research 2024年第9期19卷 1877-1878页

作者： Megan Hong gal Bitan Department of Neurology David Geffen School of MedicineUniversity of California Los AngelesLos AngelesCAUSA Department of Chemistry and Biochemistry University of California Los AngelesLos AngelesCAUSA Molecular Biology Institute University of California Los AngelesLos AngelesCAUSA Brain Research Institute University of CaliforniaLos AngelesCAUSA

Over 55 million people globally live with Alzheimer’s disease(AD)or related dementias(ADRD)and the number is expected to double every twenty *** i l recent l y,onl y symptomatic treatments were available to patients with AD,including acetylcholine esterase inhibitors,of which the last one,gal.ntamine,was approved by the US Food and Drug Administration(FDA)in 2001.

关键词： Alzheimer globally patients

Metabolic cost of flight and aerobic efficiency in the rose chafer,Protaetia cuprea(Cetoniinae)

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Insect Science 2022年第5期29卷 1361-1372页

作者： Tomer Urca Eran Levin gal Ribak School of Zoology Faculty of Life SciencesTel Aviv UniversityTel AvivIsrael Steinhardt Museum of Natural History Israel National Center for Biodiversity StudiesTel AvivIsrael

Rose chafer beetles(Protetia cuprea)are pollinators as well as agricultural pests,flying between flowers and trees while foraging for pollen and *** the energy they expend on flying during foraging activity faces the challenge of measuring the metabolic rate(MR)of free-flying insects in an open *** overcame this challenge by using the bolus injection of ^(13)C Na-bicarbonate technique to measure their metabolic energy expenditure while flying in a large flight ***,we tracked the insects with high-speed cameras to extract their flight trajectory,from which we calculated the mechanical power invested in flying for each flight *** found that the chemical(metabolic)energy input converted to mechanical flight energy output at a mean efficiency of 10.4%±5.2%,with a trend of increased efficiency in larger conspecifics(efficiency scaled with body mass to the power of 1.4).The transition in the summer from a diet of pollen to that of fruits may affect the energy budget available for *** ***,feeding on apples ad libitum,increased their body mass by an average of 6%in 2 *** to our calculations,such a meal can power a 630-m flight(assuming a carbohydrate assimilation efficiency of 90%).Pollen,with a low water and carbohydrate content but rich in proteins and lipids,has a higher caloric content and should assimilate differently when converting food to flight *** high cost of aerial locomotion is inherent to the foraging behavior of rose chafers,explaining their short flight bouts followed by prolonged feeding activity.

关键词： aerobic eficieney bolus injection of^(13)C-Na-bicarbonate feeding capacity flight metabolic rate flower chafer bele free flight mechanical power

INVERSE COEFFICIEnt PROBLEMS FOR PARABOLIC HEMIVARIATIONAL INEQUALITIES

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Acta Mathematica Scientia 2011年第4期31卷 1318-1326页

作者：刘振海 I. Szntó Faculty of Mathematics and Computer Science Guangxi University for Nationalities Departamento de Matemtica Universidad Tcnica Federico Santa María

This paper is devoted to the class of inverse problems for a nonlinear parabolic hemivariational inequality. The unknown coefficient of the operator depends on the gradient of the solution and belongs to a set of admissible coefficients. It is proved that the convergence of solutions for the corresponding direct problems continuously depends on the coefficient convergence. Based on this result the existence of a quasisolution of the inverse problem is obtained.

关键词： parabolic hemivariational inequalities inverse coefficient problems existence of quasisolutions

APPROXIMATION By COMPLEX SZSZ-DURRMEyER OPERATORS IN COMPACT DISKS

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Acta Mathematica Scientia 2014年第4期34卷 1157-1165页

作者： Sorin G.gal Vijay GUPTA Department of Mathematics and Computer Science University of Oradea Str. Universitatii No. 1410087 OradeaRomania Department of Mathematics Netaji Subhas Institute of Technology Sector 3 DwarkaNew Delhi-110078India

In the present paper, we deal with the complex Szasz-Durrmeyer operators and study Voronovskaja type results with quantitative estimates for these operators attached to analytic functions of exponential growth on comp... 详细信息

关键词： complex Szasz-Durrmeyer operators Voronovksaja type result exact order of approximation in compact disks simultaneous approximation

In situ chemical fabrication of polyaniline/multi-walled carbon nanotubes composites as supports of Pt for methanol electrooxidation

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Science China Chemistry 2010年第9期53卷 2006-2014页

作者： gal Jean-yves UMR Laboratoire Hydrosciences Maison des Sciences de l'Eau de MontpellierUniversite Montpellier Ⅱ

In this study,platinum(Pt)-polyaniline(PANI)/MWnts catalysts were synthesized by two sequential ***,coreshell structural PANI/MWnts composites were fabricated by in-situ chemical oxidation polymerization,in which MWnts act as the core and PANI as the ***,Pt particles were deposited on the PANI/MWnts composites by a chemical reduction *** morphology and constitution of the products were characterized by FT IR,scanning electron microscopy,transmission electron microscopy and *** was observed that the Pt particles were smaller in size and more uniformly distributed on these composite supports than those on the reference,pure MWnt *** results showed higher Pt(111) content in the catalyst deposited on PANI/MWnts supports than that on *** cyclic voltammeter(CV) tests demonstrated that the electrode modified by Pt-PANI/MWnts ternary composite catalyst showed a higher catalytic stability than Pt-MWnt binary catalyst did,due to the synergic interaction between Pt and the composite support.

关键词： polyaniline multi-walled carbon nanotubes in situ polymerization methanol electrooxidation

Trajectory Attractors for Binary Fluid Mixtures in 3D

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Chinese Annals of Mathematics,Series B 2010年第5期31卷 655-678页

作者： Ciprian G.gal Maurizio GRASSELLI Department of Mathematics University of Missouri Dipartimento di Matematica "F. Brioschi" Politecnico di Milano

Two different models for the evolution of incompressible binary fluid mixtures in a three-dimensional bounded domain are *** consist of the 3D incompressible Navier-Stokes equations,subject to time-dependent external forces and coupled with either a convective Allen-Cahn or Cahn-Hilliard *** systems can be viewed as generalizations of the Navier-Stokes equations to two-phase *** the trajectory approach,the authors prove the existence of the trajectory attractor for both systems.

关键词： Navier-Stokes equations Allen-Cahn equations Cahn-Hilliard equations Two-phase fluid flows Longtime behavior Trajectory attractors

Feature engineering methodology for congestion forecasting

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Journal of Traffic and Transportation Engineering(English Edition) 2022年第6期9卷 1055-1068页

作者： Ayelet gal-Tzur Shlomo Bekhor yana Barsky Department of Industrial Engineering and Management Ruppin Academic CenterEmek Hefer 40250Israel Faculty of Civil and Environmental Engineering Israel Institute of TechnologyHaifa 32000Israel Transportation Research Institute Israel Institute of TechnologyHaifa 32000Israel

Short-term traffic forecasting is a key element in proactive traffic management,e.g.,mitigating the negative effect of impending congestion through appropriate capacity allocation at signalized *** this study,we develop a data-driven methodology for reliably and robustly predicting impending stable *** incorporating feature engineering techniques into an iterative machine learning process,we develop a prediction model that can be intuitively understood by traffic experts and is amenable to diagnostics during *** iterative machine learning process combines the embedded and filter approaches for feature selection with the use of expert knowledge to create aggregative input *** embedded approach is represented by application of a decision tree algorithm,while the filter approach is reflected in use of the mean decrease in accuracy output of a random forest algorithm for identifying expressive *** tested the methodology by applying it to field data from a sub-network in Tel *** demonstrated a reduction in the number of decision tree input variables from 66 raw variables to the five most effective aggregative ones,while achieving statistically significant improvement in all performance *** identification rate of stable congestion increased from 65%to 74%while the robustness of the results was enhanced:the standard deviations of the identification and false alarm rates fell from 8%to 3%,respectively,to 5%and 2%.

关键词： Intelligent transportation systems Advanced traffic management systems Congestion forecasting Data mining Feature engineering

Negative regulation of receptor tyrosine kinases: unexpected links to c-Cbl and receptorubiquitylation

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Cell Research 2005年第1期15卷 66-71页

作者： Chanan RUBIN,gal GUR,yosef yARDEN Department of Biological Regulation The Weizmann Institute of Science Rehovot 76100 Israel Department of Biological Regulation The Weizmann Institute of Science Rehovot 76100 Israel Department of Biological Regulation The Weizmann Institute of Science Rehovot 76100 Israel

Intracellular signals mediated by the family of receptor tyrosine kinases play pivotal roles in morphogenesis, cell fate determination and pathogenesis. Precise control of signal amplitude and duration is critical for the fidelity and robustness of these processes. Activation of receptor tyrosine kinases by their cognate growth factors not only leads to propagation of the signal through various biochemical cascades, but also sets in motion multiple attenuation mechanisms that ulti- mately terminate the active state. Early attenuators pre-exist prior to receptor activation and they act to limit signal propagation. Subsequently, late attenuators, such as Lrig and Sprouty, are transcriptionally induced and further act to dampen the signal. Central to the process of signaling attenuation is the role of the E3 ubiquitin ligase c-Cbl. While Cbl- mediated processes of receptor ubiquitylation and endocytosis are relatively well understood, the links of Cbl to other negative regulators are just now beginning to be appreciated. Here we review some emerging interfaces between Cbl and the transcriptionally induced negative regulators Lrig and Sprouty.

关键词： endocytosis growth factor oncogene signal transduction ubiquitin tyrosine kinase.