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30662. Swinging arm profilometr jako nástroj pro měření tvaru rozsáhlých optických ploch
- Creator:
- Michal, Stanislav
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- interferometer, swinging arm profilometer, Lupho Smart, Faro laser tracker, stitching, Arduino, surface shape, interferometr, swinging arm profilometr, and tvar povrchu
- Language:
- Czech
- Description:
- The swinging arm profilometer (SAP) represents one of the few options for accurate measurement of large optical surfaces. Measured data are important information needed to refine the production process. The article describes the SAP measuring device and its principle. It also mentions device modifications and new procedures that simplified SAP alignment and positively influenced measurement accuracy. and Swinging arm profilometr představuje jednu z mála možností přesného měření rozsáhlých optických ploch. Data získaná měřením jsou důležitou informací nutnou ke zpřesnění výrobního procesu. V článku je popsáno měřicí zařízení SAP a jeho princip. Rovněž jsou zde zmíněny úpravy zařízení a nové postupy, které zjednodušily justáž SAPu a pozitivně ovlivnily přesnost měření.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
30663. Syllable sharing and inter-individual syllable variation in Anna´s hummingbird Calypte anna songs, in San Francisco, California
- Creator:
- Yang, Xiao-Jing, Lei, Fu-Min, Wang, Gang, and Jesse, Andrea J.
- Type:
- article and TEXT
- Subject:
- syllable type, inter-individual variability, and syllable sharing
- Language:
- English
- Description:
- We examined the song sharing and variation pattern of 44 Anna’s hummingbird males at syllable level in San Francisco, California. Full songs of Anna’s hummingbird were composed of repeated blocks of phrases. Each male sang from three to six syllable types and syllable repertoire size averaged 5.1. A total of 38 syllable types were identified in songs of the population examined, which can be classified into five basic syllable categories. Each syllable category exhibited different variability among individuals. We quantified the variation of each category and found the variability was highest in the first phrase of song. Using Jaccard’s similarity coefficient, we found the syllable sharing among birds was significantly greater within one sample site than between sites. Using Mantel tests, we demonstrated that syllable sharing among birds tended to decline with the increase of inter-individual geographic distance. A microgeographic song variation pattern that nearest neighbours tend to sing more similar songs than non-neighbours was supported in these analyses. However, hierarchical cluster analysis suggested not all individuals singing the most similar songs were nearest neighbors. It might be due to possible postbreeding immigration and song learning pattern that syllable is a unit of learning in this species.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/
30664. Sylva Daníčková: Skrytá poselství vědy - rozhovory s vědci
- Format:
- Type:
- article, recenze, model:article, and TEXT
- Subject:
- Věda. Všeobecnosti. Základy vědy a kultury. Vědecká práce, 20.-21. století, věda, intelektuální život, vědci, Česko, 12, and 00
- Language:
- Czech
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
30665. Symbiotické krevety
- Creator:
- Balzarová, Martina
- Type:
- article and TEXT
- Language:
- Czech
- Description:
- Některé mořské krevety (Caridea) žijí v symbiotických asociacích se sasankami (Actiniaria). Článek přibližuje výhodnost tohoto soužití, způsob aklimatizace krevet na žahavé buňky sasanek a příklady druhů žijících v Rudém moři. and Marine true shrimps (Caridea) are swimming decapod crustaceans. Some of them live in symbiotic associations with sea anemones (Actinaria). The article presents the co-existence and the way in which shrimps have been adapted to cnidocytes of the anemones.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/
30666. Symbióza kvantové teorie a funkcionální analýzy
- Creator:
- Bohata, Martin and Hamhalter, Jan
- Format:
- print, bez média, and svazek
- Type:
- model:article and TEXT
- Subject:
- kvantová teorie, funkcionální analýza, quantum theory, functional analysis, 6, and 53
- Language:
- Czech and English
- Description:
- Here we present some interesting aspects of interplay between quantum theory and functional analysis. We show that some of the deepest problems in both disciplines are unexpectedly equivalent. Starting from a historical point of view we comment on the following topics: connection between the structure of von Neumann algebras and the structure of quantum theories, construction of quantum integral and logic of quantum systems, Bell inequalities in light of Grothendieck inequality and operator space theory. Finally, we discuss bohrification and topos approach to quantum theory., Martin Bohata, Jan Hamhalter., and Obsahuje bibliografii
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
30667. Symbiózy krevet korálových útesů
- Creator:
- Zdeněk Ďuriš and Ostravská univerzita. Přírodovědecká fakulta
- Format:
- print, bez média, and svazek
- Type:
- article, text, články, journal articles, model:article, and TEXT
- Subject:
- Biologické vědy, krevety, korálové útesy, mořští bezobratlí, garnátovití, symbióza, shrimps, coral reefs, sea invertebrates, symbiosis, ektosymbióza, endosymbióza, Decapoda, Palaemonidae, 2, and 57/59
- Language:
- Czech
- Description:
- Většina krevet čeledi Palaemonidae obývajících tropická a subtropická moře Atlantského, Indického a Tichého oceánu se adaptovala k symbiózám se zástupci řady kmenů bezobratlých živočichů. Nejširší zastoupení symbiotických krevet je mezi těmi, které jsou ektosymbioticky vázány na těla žahavců, je mezi nimi i řada čističů ryb. Známa jsou i podobná soužití s ostnokožci, ale najdeme je i jako endosymbionty v mořských houbách, mlžích a v sumkách. Evoluce těchto korýšů byla zjevně úzce spojena se změnou hostitelských organizmů. Systematikou, ekologií a fylogenezí symbiotických krevet se zabývá tým Katedry biologie a ekologie PřF Ostravské univerzity., The majority of shrimp that belong to the Palaemonidae family (found in tropical and subtropical seas of the Atlantic, Indian and Pacific Oceans) live in symbioses with various invertebrate hosts. Most frequent are ecto-symbioses with cnidarians, including several cases of fish-cleaners. Similar associations are known with echinoderms, and other remarkable examples include endo-symbioses of shrimp with sponges, shrimp with bivalve molluscs, and shrimp with ascidians. Evolution of those shrimp was, evidently, closely related to multiple host-switching events. The systematics, ecology, and phylogeny of symbiotic shrimp are studied by a team from the University of Ostrava., and Zdeněk Ďuriš.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
30668. Symbol Indie - páv korunkatý
- Creator:
- Štěpánková, Tereza
- Format:
- Type:
- model:internalpart and TEXT
- Language:
- Czech
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
30669. Symbolické chování v revoluci 1848: revoluční móda
- Creator:
- Randák, Jan
- Format:
- Type:
- model:internalpart and TEXT
- Subject:
- revolution 1848/49, 1848-1849, symbolic behaviour, revolutionary fashion, national clothing, role of women in revolution of 1848/49, and public space
- Language:
- Czech
- Description:
- Revolution of the year 1848 constituted a specific space for human behaviour, permeated by symbols and metaphors. Under the sphere of outward behaviour comes also the peculiar problem of fashion of the time. This fashion we can call revolutionary in broader context, in Czech millieu it could be called national fashion. A prerequisite for spreading of concrete aspects of revolutionary fashion in Europe constituted the nascent „communication space“ that enabled, among others, also the trasfer of cloth designs. In the Czech lands the year 1848 was marked by the efforts for establishing the national style of dress. National clothing became a political symbol of the time, a way to acclaim liberties and constitutionalism. More pronounced was its national role. National clothing was perceived, together with language and national character, as an outward display of the the peculiarity of Czech nation. The most important was not the shape of the national clothing, but its very existence. On the other hand in European context we can talk about revolutionary fashion. As an example could serve the situation of German democrats and revolutionaries who did not have peculiar uniforms, but in most cases followed the style of their leaders. This relates especially to head covers as well as hairdressing. National and revolutionary dress served also as a means of symbolic occupation of public space. In the Czech lands this was true for ethnical competition with Bohemian Germans, in general context for „marking“ of revolution or liberal territory against conservative forces.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
30670. Symbolika bočního průčelí kostela sv. Tomáše na Malé Straně
- Creator:
- Popatanasovská, Bojana
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- art history, baroque architecture, emblematics, Kilián Ignác Dientzenhofer, Church, Lesser Town, Prague, dějiny umění, barokní architektura, emblematika, kostel, Praha, and Malá Strana
- Language:
- Czech
- Description:
- The main aim of this article is to present a new interpretation of the decoration of the lateral facade of the Augustinian Church of St Thomas in the Lesser Town of Prague, which was created during the reconstruction of the church by its architect Kilián Ignác Dientzenhofer in the first third of the 18th century. Drawing on recently discovered sources, it provides a new interpretation of the emblematic decoration of the portal of the lateral facade, both in the context of the painted decoration of the church interior and in relation to the social and theological conditions of the time. In particular, it proposes an interpretation of the four metopes in the entablature of the Doric order, for which the author or commissioner of the Baroque rebuilding of the church probably found inspiration in the emblematic album Devises et Emblèmes Anciennes & Modernes by the late 17th-century French writer and emblematist Daniel de La Feuille, on the basis of which the symbolism of these four metopes can be interpreted. The meaning of these four metopes is then related in the context of the entire decoration of the lateral facade of the temple also within the symbolism of the columnar orders, in this particular case the use of the Doric order. As it appears, the entire decoration of the lateral facade was systematically and purposefully chosen by the architect and contains extraordinary Christological symbolism that may be hidden to the modern observer at first glance.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public