2 edition of Ontogenesis of mammals in microgravity found in the catalog.
Ontogenesis of mammals in microgravity
by National Aeronautics and Space Administration, Ames Research Center, National Technical Information Service, distributor in Moffett Field, Calif, [Springfield, Va
Written in English
|Statement||edited by O.G. Gazenko.|
|Series||NASA technical memorandum -- 103978., NASA technical memorandum -- 103978.|
|Contributions||Gazenko, O. G., Ames Research Center.|
|The Physical Object|
PROF. H. F. OSBORN, in the American Naturalist for June, gives an account of recent researches upon the sucsion of the teeth in mammals. He says:— “The recent studies of Kükenthal, Röse, and. These two processes, ‘ontogeny’ and ‘phylogeny’, describe respectively the development of an organism and the history of evolution of a set of species. Because the ontogeny of similar species are similar it became clear that they went through many.
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Ontogenesis of mammals and gravity. Serova LV(1). Author information: (1)RF State Scientific Center-Institute of Biomedical Problems of RAS, Moscow, Russia. [email protected] The results of the experiments with Wistar rats in microgravity and 2G hypergravity are summarized.
Their analysis allows to conclude that adaptive potentials of adult Cited by: 1. COVID Resources. Reliable information about the coronavirus (COVID) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this ’s WebJunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus.
Ontogeny (also ontogenesis or morphogenesis) is the origination and development of an organism (both physical and psychological, e.g., moral development), usually from the time of fertilization of the egg to adult. The term can also be used to refer to the study of the entirety of an organism's lifespan.
Ontogeny is the developmental history of an organism within its own lifetime, as distinct. Part of the Heidelberg Science Library book series (HSL) Abstract At that time, the idea prevailed that development is a continuous progress from the inferior to the superior, especially since excavations had fostered the concept of a history of living beings (phylogenesis) as a continuously ascending development of species.
Ontogenesis, Ethnogenesis, Sociogenesis and Phylogenesis Every human being is a product of at least four interconnected processes of development. Ontogenesis of mammals in microgravity book In his classic work, “The Morphology of Organisms,” published inthe biologist Ernst Haeckel coined the term phylogeny, by which is meant the evolutionary development of a species or other.
Ontogenesis definition ata free online dictionary with pronunciation, synonyms and translation. Look it up now. Mammalian sex determination depends on SRY gene on Y e of Y chromosome will lead germ cells differentiate into oogonia and enter meiosis.
Female sexual development can be thus seen to be a default pathway. Gravity and microgravity. The primary issue to be considered in off-Earth reproduction is the lack of gravitational acceleration.
Life on Earth, and thus the reproductive and ontogenetic processes of all extant species and their ancestors, evolved under the constant influence of the Earth's 1g gravitational field. Gazenko OG () Ontogenesis of mammals in microgravity. Nauka Publishers, Moscow Google Scholar Gualandris-Parisot L, Husson D, Bautz A et al () Effects of space environment on embryonic growth up to hatching of salamander eggs fertilized and developed during orbital flights.
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Ontogenesis. Ontogeny recapitulates phylogeny as the post-larval gill experiences a gradual transition from a homorhabdic condition, with a single, non-plicate inner demibranch, to a heterorhabdic, plicate, reflected gill consisting of both inner and outer demibranchs (Kingzett, ; From: Developments in Aquaculture and Fisheries Science, Effects of misdirected 1G vector or microgravity on gastrulation have apparently not yet been directly tested in mammals.
Gravity sensing in individual cells in mammals has also not yet been defined. Unlike frog, where free-living embryos arise from oocytes with maternally differentially-deposited nutritional heavy yolk, mammalian embryos rely.
Ontogenesis comprises the developmental processes and acquisitions specific to the individual, in constrast to phylogenesis, which involves the processes of evolution and acquisition particular to a species. Ontogenesis and phylogenesis are not independent from one another: Individual acquisitions are only possible within the fixed limits of.
"By combining recent advances in the physical sciences with some of the novel ideas, techniques, and data of modern biology, this book attempts to achieve a new and different kind of evolutionary synthesis.
The mammary apparatus of the mammalia: in the light of ontogenesis and phylogenesis. Mammals; Mammary glands. 18 MAMMARY APPARATUS OF THE MAMMALIA bloodvessels (Fig.
6c). Internally to the cutis the beginnings of the trunk muscles were distinctly seen. Further, the primordia of the skin muscle were visible as thickenings of the cutis, which.
1. Introduction “Aging in Space” is a problem that is widely considered and discussed, because “human adaptation to microgravity has all the features of accelerated aging” .In the opinion of , the progress in microgravity research will expand our understanding of the basic mechanisms of aging and improve many of health-related problems on earth.
As a phenomenon, ontogenesis covers all manifestations of living, providing the continuity of life on all the levels of its organization, ensures lifespan of a species, regardless of the individual‘s life, and thus the dynamic stability of the cycle of matter and energy flows, the.
‘Delineation of species has traditionally been based on morphological characteristics, especially macroconidium ontogeny, and species have been named based on host association.’ ‘Heterometry should be applicable only to morphological features that.
Elucidation of the range and mechanisms of the biological effects of microgravity is one of the urgent fundamental tasks of space and gravitational biology.
The absence of forbidding on plant growth and development in orbital flight allows studying different aspects of plant adaptation to this factor that is directly connected with development of the technologies of bioregenerative life.
with minimal access to microgravity, considerable insight has been gained about how gravitational environments can affect biological systems (e.g., Refs.
9, 10, 13, 15,16, 21, 38, and 51).During the previous four decades, numerous observations have directed which gravitational biology questions should, and now can, be studied carefully.Plants will play a critical role in the survival of human beings on long-duration space missions, probably beginning pretty soon with a mission to Mars.
Plants can adapt to extreme environments on Earth, and model plants have been shown to grow and develop through a full life cycle in microgravity. In space, long-term human space exploration missions require a life support system in which.periods in a microgravity environment.
Thus it is now possible to study in greater detail the role of gravity in phylogenesis and ontogenesis. Experi-ments can range from those conducted on the simplest levels of organization of the components that comprise the neuromotor system to .