56 research outputs found

    Mein Name ist Bond, James Bond

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    35 Jahre James Bond im Kino und kein Ende abzusehen. Der bekannteste und erfolgreichste Filmspion der Welt schießt und liebt sich ins nächste Jahrtausend. Auch dieses Jahr wird der britische Geheimagent in "Tomorrow never dies" wieder auf der Leinwand zu sehen sein. Ein Teil der Zutaten, die Handlungsstruktur zu diesem altbewährten, gut geschüttelten Konzept, sei nachfolgend aufgeführt. Darüberhinaus geht es um einen Versuch, seine Popularität zu erklären, sowie um einen Ausblick in die Zukunft des Agenten

    Anatomical organization of the cerebrum of the praying mantis <em>Hierodula membranacea</em>

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    \ua9 2024 The Authors. The Journal of Comparative Neurology published by Wiley Periodicals LLC.Many predatory animals, such as the praying mantis, use vision for prey detection and capture. Mantises are known in particular for their capability to estimate distances to prey by stereoscopic vision. While the initial visual processing centers have been extensively documented, we lack knowledge on the architecture of central brain regions, pivotal for sensory motor transformation and higher brain functions. To close this gap, we provide a three-dimensional (3D) reconstruction of the central brain of the Asian mantis, Hierodula membranacea. The atlas facilitates in-depth analysis of neuron ramification regions and aides in elucidating potential neuronal pathways. We integrated seven 3D-reconstructed visual interneurons into the atlas. In total, 42 distinct neuropils of the cerebrum were reconstructed based on synapsin-immunolabeled whole-mount brains. Backfills from the antenna and maxillary palps, as well as immunolabeling of γ-aminobutyric acid (GABA) and tyrosine hydroxylase (TH), further substantiate the identification and boundaries of brain areas. The composition and internal organization of the neuropils were compared to the anatomical organization of the brain of the fruit fly (Drosophila melanogaster) and the two available brain atlases of Polyneoptera—the desert locust (Schistocerca gregaria) and the Madeira cockroach (Rhyparobia maderae). This study paves the way for detailed analyses of neuronal circuitry and promotes cross-species brain comparisons. We discuss differences in brain organization between holometabolous and polyneopteran insects. Identification of ramification sites of the visual neurons integrated into the atlas supports previous claims about homologous structures in the optic lobes of flies and mantises

    Meisterzeichnungen aus der Sammlung Franz Koenigs, Haarlem :

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    Contiene: v. [2]. Venezianische Meister / Bearbeitet von D. Freiherrn von Hadeln.Láminas enmarcadas en cartulina"400 numerierte exemplare ..."En carpeta.Copia digital. España : Ministerio de Cultura y Deporte. Subdirección General de Coordinación Bibliotecaria, 201

    The head direction circuit of two insect species

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    Recent studies of the Central Complex in the brain of the fruit fly have identified neurons with activity that tracks the animal’s heading direction. These neurons are part of a neuronal circuit with dynamics resembling those of a ring attractor. The homologous circuit in other insects has similar topographic structure but with significant structural and connectivity differences. We model the connectivity patterns of two insect species to investigate the effect of these differences on the dynamics of the circuit. We illustrate that the circuit found in locusts can also operate as a ring attractor but differences in the inhibition pattern enable the fruit fly circuit to respond faster to heading changes while additional recurrent connections render the locust circuit more tolerant to noise. Our findings demonstrate that subtle differences in neuronal projection patterns can have a significant effect on circuit performance and illustrate the need for a comparative approach in neuroscience

    Zum Oeuvre Paris Bordones

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    Zu Tizian in Padua

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