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The use of thermography in surveys of monuments
Valach, Jaroslav ; Eisler, Marek
Thermography expands the portfolio of methods that can be used to study the properties of objects in the surrounding world. As recently as a decade ago, the technology was frowned upon for potential military applications controlled, which limited competition in the offer of products and manufacturers and led to high prices of devices based on these principles. It was only thanks to the release of this control that it happened to expand production and make simplified products available to mass use, so get it today for example, a customer can purchase a smartphone with an additional thermographic module for only with a small price increase. Together with the availability of equipment, we observe an increase in the application of thermography in many areas, including surveys of buildings and monuments.
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Glycobiology of the head and neck cancer
Valach, Jaroslav ; Smetana, Karel (advisor) ; Dřízhal, Ivo (referee) ; Říhová, Blanka (referee)
iii Abstract Glycobiology represents a very progressive subject of cell biology. Protein-saccharide interactions play not only supporting and cell organization role, but they also represent medium for information storage and its decoding. Galectins, group of animal lectins (saccharide-binding proteins), which have selective affinity to ß-galactosides, are multifactorial molecules. They participate in cell-cell and cell-matrix interaction, transmembrane signaling, apoptosis, pre- mRNA splicing and are also present in various types of carcinomas. High expression of galectin-1 has been detected in cancer stroma originated from squamous cell epithelium. In the previous study we established that the fibroblasts - myofibroblasts transition, apart from the known TGF- beta, is also induced by galectin-1. We compared relationship between galectin-1 expression, presence of myofibroblasts and gene expression in tissue samples from patients with head and neck squamous cell carcinoma. Cancer stroma with myofibroblasts was rich in galectin-1 expression in comparison with stroma without myofibroblasts. Moreover, we used microarray analysis (ILLUMINA) to compare the whole genome transcriptome from samples with and without presence of galectin-1. High expression of galectin-1 in tissue samples corresponded with expression...
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The method of conservation, preservation, and restoration of subjects of cultural heritage on the ceramic basis (fired/unfired clay)
Štefcová, P. ; Kadeřábková, J. ; Polák, L. ; Valach, Jaroslav ; Vavřík, Daniel
The ceramic (decorative or utility) accompanies humanity from prehistoric times to the present days. Therefore, ceramic play important role in collections in all institutions. Due to the nature of the material are those items extremely sensitive to mechanical damage. The submitted method explains the damage mechanism or destruction of the items of cultural heritage. The method also summarizes recommendations for designing the optimal condition of depositing, exhibiting, conservation/restoration, and the manipulation with such sensitive material. Including a description of several methods useful to make quality documentation and replication of cultural heritage items (3D models). \n
Plný tet:  PDF
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The method of conservation, preservation and restoration of subjects of cultural heritage on the ceramic basis (fired/unfired clay)
Štefcová, Petra ; Kadeřábková, Jana ; Polák, Ladislav ; Valach, Jaroslav ; Vavřík, Daniel
The ceramic (decorative or utility) accompanies humanity from prehistoric times to the present days. Therefore, the ceramic play important role in collections in all institutions. Due to the nature of the material are those items extremely sensitive to mechanical damage. The submitted method explains the damage mechanism or destruction of the items of cultural heritage. The method also summarizes recommendations for designing the optimal condition of depositing, exhibiting, conservation/restoration, and the manipulation with such sensitive material. Including a description of several methods useful to make quality documentation and replication of cultural heritage items (3D models).
Fulltext: PDF
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Summary report on radiographic documentation of figurative decorations in the Bučovice castle ceremony hall
Valach, Jaroslav ; Eisler, Marek
This report summarizes the results of radiographic and endoscopic investigation of stucco and figural decorations located in the ceremony hall at the castle in Bučovice, Vyškov county. The internal structure of the statues and ornaments and their varying degree of fracture damage was documented using a portable set comprised of source and recording plates. The support structures used by the original artists as a vantage point for the modelling of their intended shapes were revealed and examined by means of radiography and endoscopy. This data is important for the art historian’s investigation of this cultural monument. Included in the report is a set of photographs and radiographs and their interpretation.
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Utilization of image and signal processing techniques for assessment of built heritage condition
Koudelka_ml., Petr ; Koudelková, Veronika ; Doktor, Tomáš ; Kumpová, Ivana ; Kytýř, Daniel ; Valach, Jaroslav
Historical buildings represent invaluable heritage from the past and therefore their protection is a very important task. Assessment of their condition must not cause damage accumulation thus the least possible volume removed from the structure is essential. As many historical buildings in the Czech Republic are built using sandstone that can be considered as a typical heterogeneous system, statistical signal processing is a promising approach for determination of the representative volume element (RVE) dimensions. Such calculations can be carried out on the domain of logical arrays representing binary images of the materials microstructure. This paper deals with processing of image data obtained using SEM-BSE and high resolution flatbed scanner for determination of RVE dimensions. Advanced image processing techniques are employed and results from calculation using grayscale data are presented and compared with results calculated on the basis of color input images.
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Glycobiology of the head and neck cancer
Valach, Jaroslav ; Smetana, Karel (advisor) ; Dřízhal, Ivo (referee) ; Říhová, Blanka (referee)
iii Abstract Glycobiology represents a very progressive subject of cell biology. Protein-saccharide interactions play not only supporting and cell organization role, but they also represent medium for information storage and its decoding. Galectins, group of animal lectins (saccharide-binding proteins), which have selective affinity to ß-galactosides, are multifactorial molecules. They participate in cell-cell and cell-matrix interaction, transmembrane signaling, apoptosis, pre- mRNA splicing and are also present in various types of carcinomas. High expression of galectin-1 has been detected in cancer stroma originated from squamous cell epithelium. In the previous study we established that the fibroblasts - myofibroblasts transition, apart from the known TGF- beta, is also induced by galectin-1. We compared relationship between galectin-1 expression, presence of myofibroblasts and gene expression in tissue samples from patients with head and neck squamous cell carcinoma. Cancer stroma with myofibroblasts was rich in galectin-1 expression in comparison with stroma without myofibroblasts. Moreover, we used microarray analysis (ILLUMINA) to compare the whole genome transcriptome from samples with and without presence of galectin-1. High expression of galectin-1 in tissue samples corresponded with expression...
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