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4313. Collage as the Principle of Mythological Thinking and Postmodern Music

Creator:
David Kozel
Format:
print, bez média, and svazek
Type:
model:article and TEXT
Subject:
hudební estetika, musical aesthetics, hudební kompozice, composition (music), mytologie, mythology, 78.01, 78.02, 25, and (048.8)
Language:
Czech
Description:
Studie Davida Kozla je věnována formě hudební koláže ve vztahu k princpipu mytologického myšlení, stejně jako jejího použití v postmoderní hudební tvorbě., The term neo-mythologism can be used as an interpretative approach to reflect the new 20th-century music paradigm, which helps to explain changes in the understanding of basic structural elements of myth and music. The study identifies certain possible correlations between mythological thinking and music by analysing the concept of collage (bricolage). The underlying theoretical concept employed is Claude Lévi-Strauss’ structural anthropology as proposed in La Pensée Sauvage (1962). Collage is viewed as a manifestation of neo-mythologism and as a narrative in the postmodern musical discourse, which is accompanied by changes in the understanding of the essence of the musical matter and compositional techniques of composers. The compositional treatment of several different layers of the musical structure within a musical collage with a view to conveying a new meaning is in principle akin to how meaning is generated in mythological thinking through the combination of various materials., David Kozel., Rubrika: Studie, and České resumé na s. 192, anglický abstrakt na s. 181.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:private

4314. Collisional evolution of asteroids and asteroid families

Creator:
Paolicchi, P. and Zappalã, V.
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
catastrophic collisions, asteroids, and asteroid families
Language:
Czech
Description:
Catastrophic or nearly-catastrophic collisions are the most important physical process affecting the evolution of asteroids following the primordial phases. After a generál review of the current ideas about collisional evolution, also in the light of laboratory impact experiments, the problems concerning the interpretation of asteroid families as outcomes of catastrophic processes are discussed. Finally, it is shown how the present, non completely satisfactory, knowledge of collisional processes can give important indications on the early phases of evolution of the asteroid belt.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

4315. Colloquium sepulcrale iam septimum

Creator:
Jiří Roháček
Format:
print, bez média, and svazek
Type:
article, články, model:article, and TEXT
Subject:
Kulturní památky historického období obecně, sepulkrální památky, interdisciplinární aspekty, mezinárodní konference, sepulchral monuments, interdisciplinary aspects, international conferences, 8, and 904
Language:
Czech
Description:
Jiří Roháček.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

4316. Colon submucosal microdialysis: a novel in vivo approach in barrier function assessment - a pilot study in rats

Creator:
Norbert Cibiček, Helena Živná, Zdeněk Zadák, Jiří Kulíř, Čermáková, E., and Vladimír Palička
Format:
print, bez média, and svazek
Type:
article, články, model:article, and TEXT
Subject:
Biochemie. Molekulární biologie. Biofyzika, biochemie, tlusté střevo, potkan, biochemistry, large intestine, Rattus norvegicus, mikrodialýza, microdialysis, colon barrier function, Cr-EDTA permeability, 2, and 577
Language:
English
Description:
During shock, prognosis of a patient depends largely on intestinal barrier function. The potency of gut epithelium to represent an obstacle to toxins is determined by the blood supply. All established methods of mucosal function determination necessitate the functional involvement of bloodstream. Microdialysis allows monitoring of extracellular substances in the gut submucosa, but its potential use for gut barrier integrity assessment is unknown. Twelve rats underwent perfusion of the descending colon either with 20 % ethanol or control medium (vehicle). Both media contained equal amounts of a radioactive tracer substance (51Cr-EDTA). Mucosal permeability for 51Cr-EDTA was assessed by microdialysate to luminal perfusate activity ratios. Sampling was performed using the colon submucosal microdialysis technique. The group subjected to ethanol treatment had profound macro- and microscopical alterations in perfused colonic segment associated with a significant increase in tracer permeability during ethanol exposure (2.354±0.298 % for ethanol as opposed to 0.209±0.102 % for control group, p<0.01), which remained elevated for 60 min after cessation of ethanol administration (3.352±0.188 % for ethanol compared to 0.140± 0.0838 % for the control group, p<0.001). Submucosal microdialysis with radioactive tracer substance can be considered a feasible and advantageous alternative of gut barrier function estimation. Parallel monitoring of local tissue chemistry with this method remains a challenge in the future., N. Cibiček, H. Živná, Z. Zadák, J. Kulíř, E. Čermáková, V. Palička., and Obsahuje bibliografii a bibliografické odkazy
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

4317. Colonisation and extinction in relation to competition and resource partitioning in acanthocephalans of freshwater fishes of the British Isles

Creator:
Lyndon, Alastair R. and Kennedy, Clive R.
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
Acanthocephala, colonisation, extinction, fish, persistence, and resource partitioning
Language:
English
Description:
This paper challenges two paradigms long held in relation to the ecology of parasites in freshwater systems: (1) autogenic species are poorer colonisers than allogenic ones; and (2) parasites with direct life cycles are more successful colonisers than those with complex life cycles. Using new and existing data for Acanthocephala in freshwater fish from the British Isles, it is suggested that all six species present have been able to colonise and persist successfully, in spite of the supposed limitations of their autogenic life-style. It is proposed that these parasites have overcome these limitations by a variety of means, which apply equally to all species considered. Foremost among these is the utilisation of a migratory fish host as either a preferred or a suitable host in their life cycle, allowing colonisation of new areas and rescue effects in established areas, whilst equally important is the use of a common and widespread crustacean as the intermediate host. In addition, all six species appear to exhibit resource partitioning by host at either or both the larval and adult stages, thus reducing the potential for competition and further facilitating colonisation and survival. This hypothesis is supported by data from previous studies both on acanthocephalans from Europe and North America and on other autogenic parasites. It also provides an explanation for the apparently atypical host utilisation patterns of some acanthocephalan species in areas on the edge of their distributions, notably in Ireland.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

4318. Color image watermarking using regularized extreme learning machine

Creator:
Deng, Wanyu and Chen , Lin
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
Regularized extreme learning machine, watermarking, and information hiding
Language:
English
Description:
In this paper, a real-time watermarking scheme based on Regularized Extreme Learning Machine (RELM) is proposed. Using the information provided by the reference positions, RELM can be trained at the embedding procedure and watermark is adaptively embedded into the blue channel of the original image by considering the human visual system. Due to the extreme training speed (always hundreds of times faster than BP neural network and Support Vector Machine (SVM)) and good generalized performance, the trained RELM can exactly extract the watermark from the watermarked image against image processing attacks within very short time, and this makes this method applicable in real-time environment. Extensive experimental results illustrate that our technique outperforms Kutter's and Yu's method against simple and multiple attacks.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

4319. Colour image recognition based on single-layer neural networks of Min/Max nodes

Creator:
Holota, Radek
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
Neural network, image recognition, Min/Max nodes, colour, and face recognition
Language:
English
Description:
An image recognition system can be based on a single-layer neural network composed of Min/Max nodes. This principle is easy to use for greyscale images. However, this article deals with the possibilities of utilising neural nets for colour image recognition. Several principles are demonstrated and tested by recently developed software. A new modified Min/Max node Single Layer Net, suitable for recognition in HSV (Hue Saturation Value) colour space, is presented in this paper.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

4320. Colouring polytopic partitions in Rd

Creator:
Křížek, Michal
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
colouring multidimensional maps, four colour theorem, chromatic number, tetrahedralization, convex polytopes, finite element methods, domain decomposition methods, parallel programming, combinatorial geometry, and six colour conjectu
Language:
English
Description:
We consider face-to-face partitions of bounded polytopes into convex polytopes in d for arbitrary d ≥ 1 and examine their colourability. In particular, we prove that the chromatic number of any simplicial partition does not exceed d+ 1. Partitions of polyhedra in 3 into pentahedra and hexahedra are 5- and 6-colourable, respectively. We show that the above numbers are attainable, i.e., in general, they cannot be reduced.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

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