139,236 research outputs found
Oral and Maxillo-facial Bone Reconstruction
No full textContains fulltext :
127344.pdf (Publisher’s version ) (Open Access)Radboud Universiteit Nijmegen, 17 juni 2014Promotores : Jansen, J.A., Tideman, H. Co-promotor : Goh, B.T
Paule Jansen
No full textHimelfarb Hélène. Paule Jansen. In: Cahiers Saint Simon, n°23, 1995. Anecdotes et historiettes. p. 112
Plangebied Rijnenburg, gemeente Utrecht; archeologisch vooronderzoek: een bureau en inventariserend veldonderzoek
No full textCoordinaten:131750/451775
Datum einde onderzoek: 2008, rapportage:22-05-2009
Projectmedewerkers: B. Jansen, J. van Eijk, C. Schamp, I. Briels
Complextype(n): xxx
Datering: IJZ/ROM, ME
Diversen: Jansen, B. en E. v.d. Laan, Plangebied Rijnenburg, gemeente Utrecht; archeologisch vooronderzoek: een bureau en inventariserend veldonderzoek, RAAPrapport 1867 (WEESP, 2009
Phylogenetic revision of Minyomerus Horn, 1876 sec. Jansen & Franz, 2015 (Coleoptera, Curculionidae) using taxonomic concept annotations and alignments
No full textabstract: This contribution adopts the taxonomic concept annotation and alignment approach. Accordingly, and where indicated, previous and newly inferred meanings of taxonomic names are individuated according to one specific source. Articulations among these concepts and pairwise, logically consistent alignments of original and revisionary classifications are also provided, in addition to conventional nomenclatural provenance information. A phylogenetic revision of the broad-nosed weevil genera Minyomerus Horn, 1876 sec. O’Brien & Wibmer (1982), and Piscatopus Sleeper, 1960 sec. O’Brien & Wibmer (1982) (Curculionidae [non-focal]: Entiminae [non-focal]: Tanymecini [non-focal]) is presented. Prior to this study, Minyomerus sec. O’Brien & Wibmer (1982) contained seven species, whereas the monotypic Piscatopus sec. O’Brien & Wibmer (1982) was comprised solely of P. griseus Sleeper, 1960 sec. O’Brien & Wibmer (1982). We thoroughly redescribe these recognized species-level entities and furthermore describe ten species as new to science: M. bulbifrons sec. Jansen & Franz (2015) (henceforth: [JF2015]), sp. n., M. aeriballux [JF2015], sp. n., M. cracens [JF2015], sp. n., M. gravivultus [JF2015], sp. n., M. imberbus [JF2015], sp. n., M. reburrus [JF2015], sp. n., M. politus [JF2015], sp. n., M. puticulatus [JF2015], sp. n., M. rutellirostris [JF2015], sp. n., and M. trisetosus [JF2015], sp. n. A cladistic analysis using 46 morphological characters of 22 terminal taxa (5/17 outgroup/ingroup) yielded a single most-parsimonious cladogram (L = 82, CI = 65, RI = 82). The analysis strongly supports the monophyly of Minyomerus [JF2015] with eight unreversed synapomorphies, and places P. griseus sec. O’Brien & Wibmer (1982) within the genus as sister to M. rutellirostris [JF2015]. Accordingly, Piscatopus sec. Sleeper (1960), syn. n. is changed to junior synonymy of Minyomerus [JF2015], and its sole member P. griseus sec. Sleeper (1960) is moved to Minyomerus [JF2015] as M. griseus [JF2015], comb. n. In addition, the formerly designated type M. innocuus Horn, 1876 sec. Pierce (1913), syn. n. is changed to junior synonymy of M. microps (Say, 1831) [JF2015] which has priority. The genus is widespread throughout western North America, ranging from Canada to Mexico and Baja California. Apparent patterns of interspecific diversity of exterior and genitalic morphology, varying host plant ranges, overlapping and widely extending species distributions, suggest an early origin for Minyomerus [JF2015], with a diversification that likely followed the development of North American desert biomes. Three species in the genus – i.e., M. languidus Horn, 1876 [JF2015], M. microps [JF2015], and M. trisetosus [JF2015] – are putatively considered parthenogenetic.The final version of this article, as published in ZooKeys, can be viewed online at: https://zookeys.pensoft.net/articles.php?id=600
J. Lafaurie, B. Jansen et A. N. Zadoks-Josephus-Jitta, Le trésor de Wieuwerd.
No full textBastien Pierre. J. Lafaurie, B. Jansen et A. N. Zadoks-Josephus-Jitta, Le trésor de Wieuwerd.. In: Revue numismatique, 6e série - Tome 4, année 1962 pp. 337-338
Béatrice Jansen et A.-N. Zadoks-Josephus-Jitta, Looking Back at « Frisians, Franks and Saxons ».
No full textLafaurie Jean. Béatrice Jansen et A.-N. Zadoks-Josephus-Jitta, Looking Back at « Frisians, Franks and Saxons ».. In: Revue numismatique, 6e série - Tome 3, année 1961 p. 244
Bernhard Jansen, S. J., Wege der Weltweisheit
No full textKremer René. Bernhard Jansen, S. J., Wege der Weltweisheit. In: Revue néo-scolastique de philosophie. 27ᵉ année, Deuxième série, n°7, 1925. p. 324
A PTAS for Packing Hypercubes into a Knapsack
No full textWe study the d-dimensional hypercube knapsack problem ({d}-D Hc-Knapsack) where we are given a set of d-dimensional hypercubes with associated profits, and a knapsack which is a unit d-dimensional hypercube. The goal is to find an axis-aligned non-overlapping packing of a subset of hypercubes such that the profit of the packed hypercubes is maximized. For this problem, Harren (ICALP'06) gave an algorithm with an approximation ratio of (1+1/2^d+ε). For d = 2, Jansen and Solis-Oba (IPCO'08) showed that the problem admits a polynomial-time approximation scheme (PTAS); Heydrich and Wiese (SODA'17) further improved the running time and gave an efficient polynomial-time approximation scheme (EPTAS). Both the results use structural properties of 2-D packing, which do not generalize to higher dimensions. For d > 2, it remains open to obtain a PTAS, and in fact, there has been no improvement since Harren’s result.
We settle the problem by providing a PTAS. Our main technical contribution is a structural lemma which shows that any packing of hypercubes can be converted into another structured packing such that a high profitable subset of hypercubes is packed into a constant number of special hypercuboids, called -Boxes and -Boxes. As a side result, we give an almost optimal algorithm for a variant of the strip packing problem in higher dimensions. This might have applications for other multidimensional geometric packing problems
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