Results 31 to 40 of about 3,320 (171)
CHIMIA, 1987 A relation has been observed for 4'-acceptor-substituted 4-dimethylamino-trans-stilbenes between the fluorescence depolarization and the rate constant of radiationless deactivation due to the adiabatic twisting around ethylene-bonding in the excited ...
Dieter Gloyna +2 more
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New Phytologist, Volume 251, Issue 4, Page 2266-2283, August 2026.Morphospace position and phylogenetic placements of Trimeriantha monopolyada. Summary Floral structure is a key aspect of angiosperm diversity. Recent research revealed that significant floral disparity was already present in the Cretaceous. However, our understanding of early floral diversity remains limited, as it is directly dependent on the fossil ...
Xieting Wu +7 more
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Moldau in Polnischen und Ungarischen Politik. Das Treffen in Levoca 1494 [PDF]
Codrul Cosminului, 2015 This paper refers to the Polish and Hungarian policy toward Moldova at the turn of 15th and 16th centuries. Different opinions about this policy should have been exposed and discussed during the negotiations in Levoča in 1494.
Niemczyk Katarzyna
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Alexander von Humboldt und die polnische Wissenschafts- und Kulturwelt
HiN - Alexander von Humboldt im Netz. Internationale Zeitschrift für Humboldt-Studien, 2017 Zusammenfassung Alexander von Humboldt war in Polen bereits im ausgehenden 18. Jahrhundert berühmt geworden. Er reiste mehrmals nach Polen und unterhielt Kontakte zu polnischen oder polnischstämmigen Wissenschaftlern.
Izabela Drozdowska-Broering
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Características Morfológicas e Bioquímicas do pólen coletado por cinco espécies de Meliponíneos da Amazônia Central [PDF]
Acta Amazonica, 2002 Durante um ano, o pólen transportado por Melipona compressipes manaosensis, Melipona seminigra merrillae, Melipona seminigra seminigra, Frieseomelitta sp. e Scaptotrigona sp. foi coletado diretamente das corbículas das operárias.
Antonio Carlos MARQUES-SOUZA +4 more
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Pollen longevity and viability dataset: an integrated resource for plant research and conservation
New Phytologist, Volume 251, Issue 4, Page 1631-1639, August 2026.The most common methods to estimate pollen viability. Summary Pollen viability and longevity are key traits in plant reproduction, with implications for gene flow, crop breeding, and ex situ plant conservation. However, published data on these traits remain dispersed across disciplines, languages, and methods, limiting their accessibility and reuse ...
Louise Winther +2 more
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Polske drømmer, polske skremmebilder
ArbeiderhistorieMålet med denne artikkelen er å analysere den norske venstresidens ulike fremstillinger av den polske fagbevegelsen Solidaritet i 1980–81. Hovedkildene er publikasjoner utgitt av de fire partiene på venstresiden, Det norske Arbeiderparti, Sosialistisk ...
Michał Gęsiarz
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Phosphoranaloga von Aminosäuren und Peptiden: Kettenverlängerung von Carbonylverbindungen
CHIMIA, 1982 Synthesis of carbonyl compounds 5 involving the Wittig-Horner reaction of diethyl-1-isocyanoalkylphosphonate 1 with carbonyl compounds 2 and subsequent hydrolysis of the vinyl isocyanides 3 formed is reported.
Janusz Rachoń
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On the Verbalization of Space and Direction Concepts
Gestalt Theory, 2020 The paper deals with selected problems of the verbalization of the concepts “place”, “space” and “direction”, with a special consideration of their successive development in language and in language acquisition. The theoretical background are assumptions
Kotin Michail L.
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The potential of seedbank digital information in plant conservation
PLANTS, PEOPLE, PLANET, Volume 8, Issue 4, Page 1017-1028, July 2026.Seedbanks are vital for biodiversity conservation, but their potential remains underutilised due to a limited understanding of the intraspecific genetic diversity they hold. By leveraging digitised data associated with seedbank collections, such as sampling locations, number of maternal plants and seed traits, we can attempt the estimation of genetic ...
Roberta Gargiulo +23 more
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