Results 41 to 50 of about 75,496 (347)
Journal of the European Mathematical Society, 2009 For a finite Coxeter group W and a Coxeter element c of W, the c -Cambrian fan is a coarsening of the fan defined by the ...
Reading, Nathan, Speyer, David E
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A new euarthropod from the Cambrian Stage 4 Guanshan Biota of South China [PDF]
Acta Palaeontologica Polonica, 2022 A new small euarthropod Astutuscaris bispinifer gen. et sp. nov. is described from the early Cambrian Stage 4 Guanshan Biota in Yunnan, China. This new euarthropod possesses a wide head shield, a pair of possible eyes, paired frontalmost appendages ...
DE-GUANG JIAO, KUN-SHENG DU
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Литосфера, 2018 Granitoids of Ishirim anticlinorium which is one of the major Precambrian structures of the North Urals, are poorly studied by modern geochemical and isotope-geochronological methods that led to the existence of different points of view on formation ...
Georg A. Petrov +2 more
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New data on the anatomy of fuxianhuiid arthropod Guangweicaris spinatus from the lower Cambrian Guanshan Biota, Yunnan, China [PDF]
Acta Palaeontologica Polonica, 2020 The fuxianhuiid arthropod Guangweicaris spinatus, from the lower Cambrian (Series 2, Stage 4), Guanshan Biota (Wulongqing Member, Canglangpu Formation), located in the vicinity of Kunming (Yunnan Province, southwest China), is redescribed based on new ...
Hong Chen +4 more
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Current Biology, 2002 What is it? Many things, but all connected to the emergence of the principal metazoan phyla, that is the assembly of the triploblastic body plans in three superclades — deuterostomes (you and sea-urchins), ecdysozoans (worm, flies and, oh yes, penis worms), and lophotrochozoans (annelids, brachiopods, molluscs).
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Cancer Medicine, Volume 11, Issue 24, Page 4865-4879, December 2022., 2022 Key steps in the oncology care pathway activity were retrospectively analyzed and compared in this comprehensive and cross‐sectional study, between the different time settings in the COVID‐19 pandemic. Oncology care were heavily disrupted during the first and second COVID‐19 outbreak waves with decrease in screening and diagnosis activity as well as an
Léonard Laurent +19 more
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Cambrian Chordates and Vetulicolians [PDF]
Geosciences, 2019 Deuterostomes make a sudden appearance in the fossil record during the Early Cambrian. Two deuterostome groups, the chordates and the vetulicolians, are of particular interest for understanding the evolutionary dynamics of the Cambrian evolutionary event.
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La performance des PMEs internationales: État des lieux et pistes de recherches futures
Canadian Journal of Administrative Sciences / Revue Canadienne des Sciences de l'Administration, Volume 39, Issue 4, Page O65-O84, December 2022., 2022 Résumé Notre étude a pour objectif d’évaluer l’état des connaissances et de formuler un agenda de recherche dans le domaine de la performance des PMEs internationales. Au travers d'une revue de 231 contributions publiées entre 1993 et 2019, nous identifions (i) les principaux débats théoriques (ii) les facteurs clés de succès et mesures de la ...
Philippe Lamb +2 more
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Sequence stratigraphy, chemostratigraphy and facies analysis of Cambrian Series 2 – Series 3 boundary strata in northwestern Scotland [PDF]
, 2016 Globally, the Series 2 – Series 3 boundary of the Cambrian System coincides with a major carbon isotope excursion, sea-level changes and trilobite extinctions.
Faggetter, Luke +14 more
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