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  • 1
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    Cambial zones in gills of Bivalvia (1975)
    Springer
    Details
    Publication Date: 1975-01-01
    Print ISSN: 0025-3162
    Electronic ISSN: 1432-1793
    Topics: Biology
    Published by Springer
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    PAPER CURRENT
  • 2
    Electronic Resource
    Electronic Resource
    Cambial zones in gills of Bivalvia (1975)
    Springer
    Marine biology 31 (1975), S. 175-180 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Localization and intensity of cell division in the gills of 9 species of Bivalvia were studied. In addition, deoxyribonucleic acid (DNA) synthesis in the gills of two species of mussels (Crenomytilus grayanus and Mytilus edulis) and of the scallop Mizuhopecten yessoensis was investigated by means of radioautography using thymidine-H3. In all bivalves examined, the distribution of branchial cell division was very uneven. Distinctly visible zones exhibited considerably higher mitotic and DNA-synthesizing activities than the remaining branchial epithelium. Topography of these zones appeared similar in all Filibranchia and Eulamellibranchia examined. Areas with enhanced cell division in the gills of Bivalvia are considered as cambial zones or “points of growth”, apparently serving as a source of growth and/or renewal of the entire organ.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00391629
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Mitotic activity of the corneal epithelium in animals kept at different temperatures (1964)
    Springer
    Bulletin of experimental biology and medicine 55 (1964), S. 103-105 
    Details
    ISSN: 1573-8221
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary A study was made of the effect of different temperatures on the mitotic activity of the rat and mouse corneal epithelium. As established, additional energy expenditure of the organism connected with the heat production requirements when suddenly placing the animals in conditions of cold, caused a marked depression of the mitotic activity of the corneal epithelium, accompanied by intensified gaseous exchange and reduction of the blood sugar content. In starving rats and mice kept in optimal temperature conditions it was possible to prolong the normal mitotic activity of the corneal epithelium. The extent of body weight loss in these animals was decreased.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00800214
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  • 4
    Electronic Resource
    Electronic Resource
    The daily periodicity of the mitotic activity in the corneal epithelium of starving rats and mice (1961)
    Springer
    Bulletin of experimental biology and medicine 52 (1961), S. 845-848 
    Details
    ISSN: 1573-8221
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The author studied the 24 hour periodicity of mitotic activity in rats belonging to three different weight groups and mice during starvation. In heavy rats (250–260 g) and in those of moderate weight (150–160 g) starved for 2–5 days no statistically authentic differences were noted either in the 24 hour rhythm of mitosis, or in the mean 24 hour number of the latter (in comparison with control). Only in rats of low weight (50–60 g) and in mice the mitotic activity decreased considerably at the end of the experiment with prolonged starvation. However, the 24 hour rhythm of mitosis was retained to some extent. The 24 hour mitotic curves were characterized by a rise during the morning and reduction in the evening both in the animals on normal diet and in the starving ones.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00811649
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  • 5
    Electronic Resource
    Electronic Resource
    Dynamics of the mitotic activity in corneal epithelium of white mice during fasting (1961)
    Springer
    Bulletin of experimental biology and medicine 50 (1961), S. 728-730 
    Details
    ISSN: 1573-8221
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The dynamics of mitotic activity of corneal epithelium was studied in fasting white mice. The animals were deprived of food for a period of 1 to 6 days. A sharp decrease of mitotic activity, appearing from the second day of fasting, remained on the same level with more prolonged food deprivation as well. In mice which received only carbohydrates (sugar and glucose) the mitotic activity of the corneal epithelium remained normal up to 4 days inclusively; after the fifth day of experiment, however, the mitotic activity decreased. The loss of weight in mice given water only was four times greater then in those fed on carbohydrates.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00796049
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  • 6
    Electronic Resource
    Electronic Resource
    Relationship between changes in mitotic activity of the corneal epithelium and body weight of fasting animals (1961)
    Springer
    Bulletin of experimental biology and medicine 50 (1961), S. 1317-1321 
    Details
    ISSN: 1573-8221
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Fasting for 24 hours did not change the number of dividing cells of the corneal epithelium in rats with the average weight of 55–60 g, whereas 48-hour fasting was accompanied by its intensification; mitotic activity was found to be considerably reduced after 72 hr of the experiment. After an initial rise, observed for up to 72 hr of fasting, the mitotic activity was found to decrease on the 4th, 5th, 6th, and 7th days in rats with an average weight of 157 g. The maximal reduction of mitotic activity (34%) and of the body weight (35%) was revealed on the 7th experimental day. In rats with average weight of 332 g the mitotic activity increased by 13% on the average (as compared with controls) during fasting from 2 to 7 days. Reduction in the number of dividing cells in this weight group was noted after 9 days of fasting. The most rapid reduction of the weight and mitotic activity occurred in rats with the least weight. In medium-weight and high-weight rats such changes took place later. Intensification of metabolism in the fasting animals, connected with the increased energy expenditure for replenishment of thermal requirements (with the animals kept at 16°C) produced maximal reduction of mitotic activity and the greatest loss of weight in the smallest rats.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00785393
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  • 7
    Electronic Resource
    Electronic Resource
    Cell division and metabolic processes taking place within the organism (1958)
    Springer
    Bulletin of experimental biology and medicine 45 (1958), S. 628-631 
    Details
    ISSN: 1573-8221
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Data concerning the study of interrelationship between the mitotic activity of the corneal epithelium and the basal metabolic rate in mice are presented in this paper. Mice which were kept in individual cages and several mice kept together in one cage were used in this experiment. Oxygen consumption in mice kept in individual cages is permanently increased. The increased number of mitoses in the corneal epithelium corresponds to the rise in oxygen consumption by these animals. Increased number of mitoses is due to a more or less proportional increase of all stages of division. The authors came to the conclusion that the relative length of the interphase in the life cycle of a cell is decreased in animals with high basal metabolic rate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00784984
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  • 8
    Electronic Resource
    Electronic Resource
    Duration of mitosis in the corneal epithelium of fasting animals (1964)
    Springer
    Bulletin of experimental biology and medicine 57 (1964), S. 90-93 
    Details
    ISSN: 1573-8221
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary X-ray irradiation was used to study the duration of mitosis in the corneal epithelium of albino rats after 2, 3, and 7 days of starvation. As established, after 2 and 3 days of starvation there was no difference in the rate or number of mitoses in starving and control animals. It was concluded from these data that the period, of interkinesis was the same in experimental and control animals. In rats starving for 7 days the rate of mitosis proved to be some-what increased; however, the main cause of reduction of the number of dividing cells was the increase of the length of interkinesis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00783485
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  • 9
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    Computer vision based individual fish identification using skin dot pattern (2021)
    In:  Scientific Reports
    Details
    Publication Date: 2021-09-16
    Description: Precision fish farming is an emerging concept in aquaculture research and industry, which combines new technologies and data processing methods to enable data-based decision making in fish farming. The concept is based on the automated monitoring of fish, infrastructure, and the environment ideally by contactless methods. The identification of individual fish of the same species within the cultivated group is critical for individualized treatment, biomass estimation and fish state determination. A few studies have shown that fish body patterns can be used for individual identification, but no system for the automation of this exists. We introduced a methodology for fully automatic Atlantic salmon (Salmo salar) individual identification according to the dot patterns on the skin. The method was tested for 328 individuals, with identification accuracy of 100%. We also studied the long-term stability of the patterns (aging) for individual identification over a period of 6 months. The identification accuracy was 100% for 30 fish (out of water images). The methodology can be adapted to any fish species with dot skin patterns. We proved that the methodology can be used as a non-invasive substitute for invasive fish tagging. The non-invasive fish identification opens new posiblities to maintain the fish individually and not as a fish school which is impossible with current invasive fish tagging.
    Language: English
    Type: info:eu-repo/semantics/article
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