1,721,168 research outputs found
Opgraving Voerendaal Romeinse villa Ten Hove
No full textHet betreft de opgraving van een Romeinse villa te Voerendaal, toponiem Ten Hove. Uit de opgravingen, van 1983 tot en met 1987, blijkt dat het villaterrein al bewoond was voordat de eerste villa gebouwd werd. Her en der zijn sporen gevonden van afvalkuilen en van eenvoudige gebouwtjes. De inheemse nederzetting wordt gedateerd rond de eerste eeuw voor Chr. De villa blijkt in verschillende fasen te zijn gebouwd. Zowel de hoofd- als bijgebouwen waren door latere sloop- en nieuwbouwwerken niet overal goed bewaardTussen het begin van de 2e eeuw tot het einde van de 3e eeuw bereikte de villa haar grootste omvang: het totale complex van stenen gebouwen had een lengte van 190 m. Er zijn tal van verschillende gebouwen aangetroffen, waaronder vertrekken met pleisterwerk en muurschilderingen, de stookplaats van de hypocaustum, een voorraadkelder, een horreum, thermen en een smidse. Gedurende het onderzoek is er ook onderzoek gedaan naar plantenresten (spelt, verschillende soorten tarwe en gerst)
<p class="Body">First report on Rhabdocoela (Rhabditophora) from deep parts of Skagerrak, with the description of four new species (Erratum)
No full textWILLEMS, W., SANDBERG, M. I., JONDELIUS, U. (2007): <p class="Body">First report on Rhabdocoela (Rhabditophora) from deep parts of Skagerrak, with the description of four new species (Erratum). Zootaxa 1632 (1): 68, DOI: 10.11646/zootaxa.1632.1.6, URL: http://dx.doi.org/10.11646/zootaxa.1632.1.6</p>
On ideals in group algebras: An uncertainty principle and the Schur product
Full text linkIn this paper, we investigate some properties of ideals in group algebras of finite groups over fields. First, we highlight an important link between their dimension, their minimal Hamming distance and the group order. This is a generalized version of an uncertainty principle shown in 1992 by Meshulam. Secondly, we introduce the notion of the Schur product of ideals in group algebras and investigate the module structure and the dimension of the Schur square. We give a structural result on ideals that coincide with their Schur square, and we provide conditions for an ideal to be such that its Schur square has the projective cover of the trivial module as a direct summand. This has particularly interesting consequences for group algebras of p-groups over fields of characteristic p
Reygel, P.C., Willems, W.R. & Artois, T.J. (2011) Koinocystididae and Gnathorhynchidae (Platyhelminthes: Rhabdocoela: Kalyptorhynchia) from the Galapagos, with the description of three new species. Zootaxa, 3096, 27-40.
No full textREYGEL, P. C., WILLEMS, W. R., ARTOIS, T. J. (2011): Reygel, P.C., Willems, W.R. & Artois, T.J. (2011) Koinocystididae and Gnathorhynchidae (Platyhelminthes: Rhabdocoela: Kalyptorhynchia) from the Galapagos, with the description of three new species. Zootaxa, 3096, 27-40. Zootaxa 3132 (1): 68, DOI: 10.11646/zootaxa.3132.1.4, URL: http://dx.doi.org/10.11646/zootaxa.3132.1.
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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