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Showing 1 to 20 of 126 for “"Anoxia"”.
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Short term effects of hypoxia and anoxia on sediment biogeochemistry
Hypoxia and anoxia alter the behaviour, diversity and habitat of the benthic communities and cause accumulation of organic matter and nutrients. Most studies have focused on the effect of anoxia on benthic organisms and little information is available on nutrient sediment-water fluxes and rates of …
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Anoxia-Induced Changes in Action Potential Propagation in a Non-Myelinated Axon
Processing information in the nervous system is energetically expensive, constraining the ability of the system to survive disturbances caused by stress. While some organisms compensate for extreme changes in the abiotic features of their environment, the mechanisms underlying this are poorly …
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Micro-fading spectrometry: an ivestigation into display of traditional watercolour pigment in anoxia
In this work a novel micro-fading instrument has been developed that has increased structural stability, hence increasing the portability over previously reported instruments of this type. Using this instrument several new experimental methods have been developed and applied for the investigation …
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Anoxia tolerant hepatocytes : a model system for the study of metabolic and channel arrest
… to obtain. A cell level system that responses to anoxia in a fashion similar to that of the anoxia-tolerant animal from which it was obtained would be invaluable. Described here is a method for the isolation of anoxia tolerant hepatocytes from the freshwater turtle Chrysemys picta bellii. Freshly …
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La valoración psicológica del recién nacido y su utilización como pronóstico en casos anoxia
METODOLOGIA 1º. Clínico 2º. Experimental 3º. Estadístico 4º. Transversal, repetido 5º. Comparativo Analizando cada uno de ellos tenemos. 1º) El Método Clínico, es decir la valoración clínica, del estado del Recién Nacido es utilizado criterio de normalidad o anormalidad. Según exista o no …
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The crustacean zooplankton communities of three prairie lakes subject to varying degrees of anoxia
… prairie lakes subject to varying degrees of anoxia were studied for 14 months from February 1976 to April 1977. Ten or twelve samples were collected with a tube in both the deep and shallow zones of each lake once weekly during summer, biweekly in spring and fall and monthly during winter. …
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The Effect of Anoxia Upon Learning and Reversal of a Position Habit in The White Rat
Made available in DSpace on 2014-12-03T23:50:40Z (GMT). No. of bitstreams: 1 0010556.pdf: 5110268 bytes, checksum: 3e0cbb15c295530232c51c0cd8f289a9 (MD5) Previous issue date: 1954
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Anoxia-Mediated Electrical Suppression in the Cerebral Cortex of the Western Painted Turtle (Chrysemys picta bellii): Role of the Mitochondrion
… animals that are intolerant to severe hypoxia or anoxia, the brain undergoes irreparable harm within minutes of insufficient oxygen supply. The western painted turtle (Chrysemys picta bellii) has evolved the ability to survive winter months without access to air and does not experience any …
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The Proteomic Response of Gill Tissue in Tidally and Subtidally-Acclimated California Mussels, Mytilus californianus, to Acute Emersion-Induced Anoxia
… mussels regularly experience emersion-induced anoxia, in contrast to normoxic conditions experienced during submersion. We therefore hypothesized that acclimation to a tidal rhythm, as opposed to a rhythm of constant submersion, preconditions the proteome of the California mussel, …
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Cell Cycle Regulation by Post-Translational and Post-Transcriptional Mechanisms in an Anaerobic Extremist- the Anoxia Tolerant Turtle, Trachemys Scripta Elegans
… Rb/E2F1 mediated G1 arrest complex by 5 and 20 h anoxia, repectively. By 20 h anoxia, kidney tissue established a reversible state of G0, characterized by the prescence of a p130/E2F4 DNA-bound complex.Overall, results from this thesis indicate that both kidney and liver enter into a G1 arrest …
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Energy levels and anaerobic endproducts in the brains of two species of teleost fish at death in anoxic water
… basic to life and is also thought to be an anoxia-sensitive tissue. Therefore, during anoxia, the maintenance of energy within the brain is of paramount importance to the survival of the animal. Studies concerning energy levels and storage and the use of anaerobic metabolism in fish brains …
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The anaerobic resistance of Carassius auratus (L.)
… anaerobe", capable of surviving 5months of anoxia at low temperatures. In this respect it is unique among vertebrates. However, a careful examination of Blazka's methods and results reveals that the general acceptance of his conclusions is quite unjustified. Additional work is required to …
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The anaerobic resistance of Carassius auratus (L.)
… anaerobe", capable of surviving 5months of anoxia at low temperatures. In this respect it is unique among vertebrates. However, a careful examination of Blazka's methods and results reveals that the general acceptance of his conclusions is quite unjustified. Additional work is required to …
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Regulation of the Nuclear Factor of Activated T Cell (NFAT) Family of Transcription Factors in the Freeze Tolerant Wood Frog, Rana sylvatica
… dehydration when water exits as well as anoxia due to interruption of blood flow. Adapting to such challenges requires metabolic rearrangement, partially mediated by transcription factor control over gene expression. Here, involvement of the nuclear factor of activated T-cells (NFAT) …
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Oxygen dynamics in the bottom waters of lakes: Understanding the past to predict the future
… also found support for a previously-hypothesized Anoxia Begets Anoxia feedback, whereby bottom-water anoxia (i.e., no dissolved oxygen) in a given year promotes increasingly severe occurrences of anoxia in following summers. This finding demonstrates the need for forecasts of future oxygen …
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