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Combinatorial Dyson-Schwinger equations and inductive data types

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Frontiers of physics 2016年第3期11卷 179-193页

作者： Joachim Kock departament de matemhtiques Universitat Autdnoma de Barcelona Spain

The goal of this contribution is to explain the analogy between combinatorial Dyson-Schwinger equations and inductive data types to a readership of mathematical physicists. The connection relies on an interpretation of combinatorial Dyson-Schwinger equations as fixpoint equations for polynomial functors （established elsewhere by the author, and summarised here）, combined with the now-classical fact that polynomial functors provide semantics for inductive types. The paper is expository, and comprises also a brief introduction to type theory.

关键词： Dyson-Schwinger equations type theory inductive types bialgebras polynomialfunctors

True cicadas (Cicadidae) as prey for the birds of the Western Palearctic: a review

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Avian Research 2020年第2期11卷 174-182页

作者： Pere Pons departament de Ciències Ambientals Universitat de Girona

Background:True cicadas(Cicadidae)are large and temporarily abundant *** availability may produce demographic and behavioural effects on bird populations,as happens with forest avifauna feeding on periodical cicadas in North *** Europe,the Near East and North Africa,knowledge of cicada predation by birds is ***:To help fill this gap,I consulted Cramp’s Birds of the Western Palearctic,conducted a search of online databases and used search engines to generate a database of Western Palearctic birds known to eat ***:A total of 105 species(16%of those occurring in the region)belonging to 13 orders,and comprising 20 of the 33 passerine families,were found to consume cicadas.I estimated that 69 of these bird species are known to consume cicadas within the limits of the Western *** terrestrial birds predate on cicadas,preferably on *** predators include cuckoos,owls,bee-eaters,woodpeckers,falcons,reed-warblers,larks,crows and jays,buntings,shrikes,pipits and wagtails,flycatchers and chats,tits,sparrows,leaf-warblers,starlings,warblers and thrushes,but also terns and *** are consumed by some passerines,owls and *** can make up as much as 70%of food items delivered to *** of stomach contents and neck collar samples are the most common methods used in diet ***:Available knowledge is biased towards species that have been more intensively studied,and often lack proper quantification of prey *** studies about the relative importance of cicadas as prey for birds in the Western Palearctic are needed.I suggest using non-invasive studies based on pellets and droppings and prioritizing declining bird species.

关键词： Bird species Cicadidae Cramp’s handbook Diet studies Predator-prey relationships

Corrigendum to“Moult intensity constraints along the complete moult sequence of the House Sparrow(Passer domesticus)”[Avian Res.14(2023)100125]

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Avian Research 2023年第4期14卷 716-717页

作者： Santi Guallar Javier Quesada departament de Vertebrats Museu de Ciències Naturals de BarcelonaBarcelona08003CataloniaSpain

In the original version of this article,we published a figure showing a gap in the confidence intervals for body and tail due to data paucity for mid stages of moult ***,we amended this problem adding data from the 2023 moulting season,during which we obtained 139 moult records from 98 *** final sample size used for plotting these results are shown in the caption *** amendment corroborates the conclusion already stated:body moult does not seem to be under physiological constraints,although primary moult appears to be tightly controlled to reduce aerodynamic losses.

关键词： constraints stated conclusion

Direct Electrochemical Determination of Glyphosate Herbicide Using a Screen-Printed Carbon Electrode Modified with Carbon Black and Niobium Nanoparticles

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Journal of Analysis and Testing 2023年第4期7卷 425-434页

作者： Julia Oliveira Fernandes Cassiano Augusto Rolim Bernardino Juliana dos Santos Fernandes Claudio Fernando Mahler Bernardo Ferreira Braz Luiz Henrique Carpenter dos Santos Rodrigo JoséCorrêa Ricardo Erthal Santelli Braulio Soares Archanjo Emerson Schwingel Ribeiro Fernando Henrique Cincotto departament of Analytical Chemistry Institute of ChemistryFederal University of Rio de JaneiroRio de Janeiro 21941-909Brazil departament of Civil Engineering COPPEFederal University of Rio de JaneiroRio de Janeiro 21941-598Brazil National Institute of Science&Technology of Bioanalytics(INCTBio) CampinasSão Paulo 13083-862Brazil departament of Inorganic Chemistry Institute of ChemistryFederal University of Rio de JaneiroRio de Janeiro 21941-909Brazil Unesp National Institute of Alternative Technologies for DetectionToxicological Assessment and Removal of Micropollutants and Radioactives(INCT-DATREM)AraraquaraSão Paulo 14800-060Brazil National Institute of Metrology Quality and TechnologyInmetroAv.Nossa Senhora das Graças50XerémDuque de Caxias 25250-020Brazil

Glyphosate is a herbicide that has been widely used worldwide and is used in agricultural areas to control weeds and unwanted *** sensors developed from different nanomaterials have high efficiency,excellent cost-benefit,and fast analysis time for detecting traces of environmental *** study aimed to produce an electrochemical sensor with disposable screen-printed electrodes based on carbon black modified with niobium nanoparticles to determine glyphosate in aqueous *** morphology,structure and electrochemical performance of the sensor were characterized by scanning electron microscopy,energy-dispersive X-ray spectroscopy,X-ray diffraction and cyclic *** pulse voltammetry in BR buffer solution at pH 5.0 allowed the generation of a method to quantify glyphosate concentration in a linear range of 5.90-172.30μmol/L(1.00-29.13μg/mL),with a limit of detection calculated at 3.07μmol/L(0.52μg/mL).The method efficiently quantified glyphosate in real water samples and showed no interference from K^(+),Na^(+),Ca^(2+),Mg^(2+)ions or thiamethoxam,imidacloprid and carbendazim pesticides.

关键词： Glyphosate Electrochemical sensor Carbon black Niobium nanoparticles

Modified Hawking effect from generalized uncertainty principle

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Communications in Theoretical Physics 2021年第1期73卷 62-67页

作者： Jaume Giné departament de Matemàtica Universitat de LleidaCataloniaSpain

We use the generalized uncertainty principle to compute the first correction to the Hawking temperature associated to Hawking *** this value we obtain a new evaporation time and entropy of any Schwarzschild black hole... 详细信息

关键词： Hawking effect quantum fluctuations uncertainty principle

PHASE PORTRAITS OF THE LESLIE-GOWER SYSTEM

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Acta Mathematica Scientia 2022年第5期42卷 1734-1742页

作者： Jaume LLIBRE Claudia VALLS departament de Matematiques Universitat Autonoma de Barcelona08193BellaterraBarcelonaCataloniaSpain departamento de Matematica Instituto Superior TecnicoUniversidade de LisboaAu.Rovisco Pais 1049-001LisboaPortugal

In this paper we characterize the phase portraits of the Leslie-Gower model for competition among *** give the complete description of their phase portraits in the Poincarédisc(i.e.,in the compactification of R^(2) adding the circle S1 of the infinity)modulo topological *** is well-known that the equilibrium point of the Leslie-Gower model in the interior of the positive quadrant is a global attractor in this open quadrant,and in this paper we characterize where the orbits attracted by this equilibrium born.

关键词： predator-prey models Leslie-Gower system Poincare compactification global phaseportraits

Microstructure and magnetocaloric properties of partially crystallized Gd_(60)Co_(30)Fe_(10)amorphous alloy prepared by different solidification cooling rates

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Rare Metals 2022年第1期41卷 246-253页

作者： Hui-Yan Zhang Zi-Yang Zhang Ya-Fang Xu Ai-Lin Xia Wei-Huo Li Fa-Chao Wang Shuang-Shuang Chen Gerard Sisó Key Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials(Anhui University of Technology) Ministry of Education School of Materials Science and Engineering Anhui University of Technology departament d’Enginyeria Electro`nica-Escola d’Enginyeria Universitat Autònoma de Barcelona

The Gd_(60)Co_(30)Fe_(10)alloy ribbons with different solidification cooling rates were prepared by modifying the melt-spinning speed of 6.0,12.5,25.0 and 50.0 m·s^(-1)·With cooling rate decreasing,the(Fe,Co)5 Gd and hcp-Gd nanocrystalline was in situ precipitated among the amorphous matrix,which resulted in the composition change of the amorphous *** of the only slight amount of crystalline phase in Gd_(60)Co_(30)Fe_(10)alloys,the magnetic and magnetocaloric properties mainly depend on the amorphous phase,and all the magnetic entropy change versus temperature(|Δ|SMI-T)curves are table-like,indicating the suitability for Ericsson *** magnetic transition temperature of the Gd_(60)Co_(30)Fe_(10)alloy at a melt-spinning speed of 6.0 m·s^(-1) shifted obviously to the lower value with the applied magnetic fields *** peak value of magnetic entropy change(|ΔSMpk|)is 2.19 J·kg^(-1)·K^(-1)at217 K under the magnetic field change of 0-2 T,and the table-like region is 200-230 *** was proved that the moderate reduction of the cooling rate will not deteriorate the magnetocaloric performance of the Gd_(60)Co_(30)Fe_(10)ribbons seriously.

关键词： Magnetic refrigeration Amorphous-nanocrystalline composite In situ precipitation Magnetocaloric effect

Iterated Inverse Images of Plane Curve Singularities

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Acta Mathematica Sinica,English Series 2011年第12期27卷 2319-2328页

作者： Eduardo CASAS-ALVERO Joaquim ROE departament d＇Algebra i Geometria Universitat de Barcelona Gran Via 585 08007 Barcelona Spain departament de Matematiques Universitat Autonoma de Barcelona 08193 Bellaterra （Barcelona） Spain

We describe the evolution of certain multiplicities and intersection numbers of plane curve singularities under the iterated action of an analytic morphism.

关键词： Plane curve singularity analytic morphism dynamics of intersection

A configurational approach to innovation performance:The role of creativity

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International Journal of Innovation Studies 2023年第3期7卷 189-204页

作者： Victor del-Corte-Lora Teresa Martinez-Fernandez Teresa Vallet-Bellmunt Norat Roig-Tierno departament of Business Administration and Marketing Universitat Jaume I12071CastellSpain Department of Economy and Social Sciences Universitat Politecnica de Valencia46022ValenciaSpain

In this study,we analyze new ways of conceptualizing improvements in firms'innovation by implementing the"right-factors configuration,"illustrated through an analog of a recipe and its ***,we research the multiple combinations of three ingredients(creativity,innovation networks,and resources)required to accomplish the innovation *** a sample of firms from a Spanish science and technology park,we apply qualitative comparative analysis(QCA)-specifically,fuzzy-set QCA(fsQCA)-to test the importance of each component in technological and non-technological ***,the results suggest a map of combinations of innovative ingredients with eight possible ***,they show that the only ingredient needed is the combination of a creative climate and creative ***,the methods of obtaining technological and non-technological innovations *** implications for management and policymakers are discussed,and directions for future research are highlighted.

关键词： Creativity Innovation networks Resources Innovation Creative climate Creative intensity Institutions fsQCA