87,901 research outputs found
[print] Nieuwjaarsgroeten van de lossers van de Gentse barge.
No full textInscriptie: 'De Bargie lossers allegaer, Wensghen ul een Nieuwjaer', gevolgd door enkele monogrammenOnderaan rechts: 'F. Wau. f.' (gegraveerd door F. Wauters)Bijzondere collectie
Nieuwen almanach der konst-schilders, vernissers, vergulders en marmelaers, voor het jaer Ons Heere Jesu Christi M.DCC.LXXVII. [...].
No full textVanderhaeghen, F. Bib. gantoise 5079Er is ook een andere uitgave onder de titel: Nieuwen verlichter der konst-schilders, vernissers, vergulders en marmelaers [...] zonder de inleidende kalenderGravures: J. L. Wauters (portret van Rubens in volume 1)Datum uit titelEuropeana-GoogleBook
Het bloedig lyden van Jesus-Christus verbeeldt in het onbloedig sacrificie van de H. Misse : Verciert met printen, geestelyke bemerkingen en gedichten.
No full textMet 35 gravures, de laatste gesigneerd Wauters 1746Vanderhaeghen, F. Bib. gantoise ; 3932Europeana-GoogleBooksVander Haeghen, Ferdinand François ErnestVander Haeghen, Ferdinand François Ernes
Quantization of the Hall conductivity in the Harper-Hofstadter model
No full textWe study the robustness of the quantization of the Hall conductivity in the Harper-Hofstadter model towards the details of the protocol with which a longitudinal uniform driving force Fx(t) is turned on. In the vector potential gauge, through Peierls substitution, this involves the switching on of complex time-dependent hopping amplitudes e-iAx(t) in the ◯ direction such that ∂tAx(t)=Fx(t). The switching on can be sudden, Fx(t)=θ(t)F, where F is the steady driving force, or more generally smooth Fx(t)=f(t/t0)F, where f(t/t0) is such that f(0)=0 and f(1)=1. We investigate how the time-averaged (steady-state) particle current density jy in the ŷ direction deviates from the quantized value jyh/F=n due to the finite value of F and the details of the switching-on protocol. Exploiting the time periodicity of the Hamiltonian Ĥ(t), we use Floquet techniques to study this problem. In this picture the (Kubo) linear response F→0 regime corresponds to the adiabatic limit for Ĥ(t). In the case of a sudden quench jyh/F shows F2 corrections to the perfectly quantized limit. When the switching on is smooth, the result depends on the switch-on time t0: For a fixed t0 we observe a crossover force F∗ between a quadratic regime for F<F∗ and a nonanalytic exponential e-γ/|F| for F>F∗. The crossover F∗ decreases as t0 increases, eventually recovering the topological robustness. These effects are in principle amenable to experimental tests in optical lattice cold atomic systems with synthetic gauge fields
Beschryvinge van het zeven honderdjaerig jubilé van den heyligen Macarius, bezonderen patroon tegen de peste : het welk geviert zal worden binnen deze stad van Gend [...] te beginnen met den 30. Mey tot den 15. Juny 1767., met de voordere uytlegginge van de plechtigheden, cavalcade, vercierselen, vierwerk [...].
No full textHerkomst: dono ... Carolus HulinHerkomst: Ex libris Prosper ClaeysHerkomst: Don F. Vander HaeghenEuropeana-GoogleBooksAlles vercierd met kopere plaetenMet dubbele platen ; Ex. BIB.ACC.032318 : Zonder platenEr is ook een andere editie bij Jan Meyer (8° formaat)Samengesteld door Jan Meyer ; met gravures van P. Wouter, I.L. Wauters fils en F. Heylbrouck naar tekeningen door Emmanuel Van Reysschoo
Beschryvinge van het zeven honderdjaerig jubilé van den h. Macarius, bezonderen patroon tegen de peste. Het welk geviert zal worden binnen deze stad Gend [...] te beginnen met den 30. Mey tot den 15. Juny 1767., met de voordere uytlegginge van de plechtigheden, cavalcade, vercierselen, vierwerk [...].
No full textVanderhaeghen, F. Bib. gantoise 3858Herkomst: Prosper ClaeysHerkomst: Prosper ClaeysHerkomst: Dezen boek behoort toe aen J. Cnudde ; Don F. Vander HaeghenEuropeana-GoogleBooksSamengesteld door Jan Meyer ; met gravures van P. Wouter, I.L. Wauters fils en F. Heylbrouck naar tekeningen door Pieter Norbert Van ReysschootDe pagina nummering springt van XXVIII tot XXIZonder de platenZonder de platenEr is ook een andere editie bij Jan Meyer (4° formaat)Vander Haeghen, Ferdinand François Ernes
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Le Testament d'Ermesinde, Ctesse de Luxembourg, par Alphonse Wauters,...
No full textExtrait du "Compte rendu des séances de la Commission royale d'histoire"... 4e série, t. XI, n° 4, 1883. - Don Delisle-Burnouf
Within-sex density dependence and population dynamics of red squirrels Sciurus vulgaris
No full text1.
Social organization and dispersal of red squirrels (
Sciurus vulgaris
L.) differ between
sexes, and intrasexual competition is intense. Therefore, we predicted that demographic
parameters should be gender-specific: that is density-dependent factors will be more
strongly related to density of the same sex than to density of the opposite sex. We studied
the relative importance of within- and between-sex density-dependent factors and of
density-independent factors (habitat type, food abundance, winter temperature) on different
demographic parameters, in two populations in northern Belgium.
2.
Spring density of males was positively correlated with tree-seed abundance in the
previous year, but this was not the case for females. None of the population parameters
we measured differed between habitats, indicating that the same density-dependent and
density-independent mechanisms prevailed in coniferous and deciduous habitat.
3.
Within each sex, we found several demographic parameters that were dependent on
the densities of the same sex; however, none of these parameters was found to be
dependent on the density of the opposite sex.
4.
Reproductive rate increased with food abundance and decreased with female density.
Adult survival of females decreased with female density in autumn–winter, while survival
of adult males in spring–summer increased with the size of the previous year’s seed crop.
5.
Immigration rate of males was higher in spring than in autumn, and spring immigration
increased with food abundance. Male recruitment rate, in both seasons,
increased with food abundance, but was male density dependent. However, spring–
summer loss rates also increased when food supplies were good, suggesting that despite
high food availability, emigration of juvenile and subadult males increased when intrasexual
competition was intense. Recruitment rate of females decreased with increasing
female density. After a good seed crop, more subadult females dispersed, but their settlement
success (recruitment) was lower at high female density.
6.
Seed crop size positively affected red squirrel densities through increased reproduction,
immigration and adult survival of males, but density-dependent reproduction and withinsex
density-dependent recruitment of locally born juveniles and dispersing subadults limit
the fluctuations in numbers and regulate densities in winter–early spring, as well as in summer
- …
