Serotonin is a biogenic amine that modulates smooth muscle contractions of the crop and gizzard of the earthworm, Lumbricus terrestris. |
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Given their consistent morphology, these structures are considered biogenic. |
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Pelagic biogenic sediments consist of the fine-grained skeletal debris of marine planktonic and benthonic organisms. |
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Some of our results suggest that the extractable agent in nest soil is organic, and possibly biogenic. |
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Some other possible mechanisms could include increased dust deposition, volatile biogenic emissions, or tectonic activity. |
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This is due to the special biogenic amine in chocolate, which can change internal secretions. |
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Despite the oceanic setting, the incoming Atlantic Plate carries significant sedimentary and biogenic influxes derived from nearby South America. |
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Cnidarians contain chemical synapses and release neurotransmitters, including biogenic amines and peptides. |
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Aldh's are considered to be general detoxifying enzymes that oxidize toxic biogenic and xenobiotic aldehydes. |
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Time parameters should take into account the time mutability of the content of biogenic substances. |
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The isotopic composition of these recrystallized bones is therefore a mixture between two endmember compositions, one biogenic and one diagenetic. |
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The gridded area emissions consist of biogenic, mobile, nonmobile sources, and minor point sources grouped as area sources. |
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Carbidopa: In the absence of biogenic amine precursors, carbidopa is singularly inert pharmacologically. |
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During the first stage, biogenic methane is the only hydrocarbon generated in commercial quantities. |
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With the exception of lignin, which gives the wood its consistency, these bacteria can degrade virtually all types of biogenic material. |
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Another possible application is improving the efficiency of methods for the production of biogenic fuels based on woody biomass. |
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This uses not only the whole plants of the species mentioned above, but can even utilise wood and biogenic waste. |
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For example, some species depend on complex three dimensional biogenic structures, such as reefs, for shelter from predators. |
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With a lot of his own money and years of painstaking work, Schmid has developed a process that converts biogenic waste into biogas. |
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Allochthonous sediments enter the cave system through a number of processes, including aeolian, fluvial, colluvial, biogenic, glacial, marine, and human activity. |
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It is thus important to determine the order of magnitude of the acceleration effect on biogenic weathering by soil microorganisms, lichens and vascular plants. |
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This would permit survival of an intermittent bottom-dwelling fauna whose activities would result in the mixing of the biogenic input to destroy any lamination. |
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The closest things are some other halogenated pyrroles found in some marine bacteria, lending credence to the theory that this is a biogenic material. |
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Under such conditions biogenic carbonate may be replaced by phosphorite. |
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Continental rises form as a result of three sedimentary processes: mass wasting, the deposition from contour currents, and the vertical settling of clastic and biogenic particles. |
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Anchovies are associated with scombroid-poisoning due to biogenic amine contents such as histamine, putrescine and cadaverine. |
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Effect of the extract of Rhodiola rosea L on the content of the brain biogenic monamines. |
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In comparison, a milk of mediocre quality contains little biogenic bacteria since the quality of the biochemical environment is inadequate for their development. |
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The calculations were performed using an extensive data base of anthropogenic and biogenic emissions of nitrogen species and volatile organic compounds. |
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Conservation of vegetation and of the oceans' potential with regard to increasing flow volumes through biogenic processes, and particularly the action of phyto and zooplankton, is essential. |
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Scombrotoxin is attributed mainly to Enterobacteriaceae which can produce high levels of histamine and other biogenic amines in the fish muscle when products are not immediately chilled after catching. |
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Hyaluronic acid contains glucuronic acid, a representative biogenic carboxylic, and GlcNAc, a representative biogenic amine. |
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The biogenic silica composing the cell wall is synthesised intracellularly by the polymerisation of silicic acid monomers. |
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Where clastic sediment inputs are small, biogenic sedimentation can dominate especially nearshore sedimentation. |
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These waters have among the lowest levels of salinity in the Arctic basin as well as a very high oxygen content and increased biogenic elements. |
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Abiogenic sand contains a small amount of calcium carbonate particles and will also react to the vinegar, but not as dramatically as biogenic sand. |
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The revolutionary bioreactor transforms biogenic fats and oils into biodiesel with unprecedented speed of only 2-3 seconds. |
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The fossil record includes a progression from early biogenic graphite, to microbial mat fossils, to fossilized multicellular organisms. |
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The very clean environment of the Whistler mountain sites provides a unique opportunity to study this biogenic aerosol without the presence of regional pollution. |
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Lu-Hf isotope systematics of fossil biogenic apatite and their effects on geochronology. |
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Pelagic sediments, either terrigenous or biogenic, are those that are deposited very slowly in the open ocean either by settling through the volume of oceanic water or by precipitation. |
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Changes in seafloor spreading rates and glaciations have caused sea levels to rise and fall, greatly altering the deep-sea sedimentation pattern of both terrigenous and biogenic sediments. |
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Increased biogenic carbon content in sediment increases the consumption of oxygen by lakebed organisms and can result in oxygen depletion in the deeper layers of the lakes. |
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The effects of sample treatment and diagenesis on the isotopic integrity of carbonate in biogenic hydroxylapatite. |
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In humans, it is estimated that several hundreds distinct members direct responses to a wide variety of chemical transmitters, including biogenic amines, amino acids, peptides, lipids, nucleosides and large polypeptides. |
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The information on biogenic aerosol formation and cloud properties will be incorporated into air quality and climate models to increase the predictive capacity of these tools. |
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Post-combustion processes generally use a recyclable solvent to trap CO2 in the emission stream, though some projects are attempting to demonstrate biogenic capture through photosynthetic algae. |
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Besides biogenic solid wastes, effluents loaded with organic pollutants from industry and handicrafts lend themselves particularly well to decomposition by methanation. |
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In June 2005, the Board issued a Safety Advisory regarding areas that may contain biogenic gas deposits within the western half of the Northwest Territories, in particularly in the Mackenzie Delta. |
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The food items were re-classified into seven major groups comprising detritus, pisces, insects macrophyte materials, mud, nematoda and biogenic sand. |
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Most of the BioConcept racing car parts are built from biogenic materials. |
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Crystalchemical controls on rare-earth element concentrations in fossil biogenic apatites and implications for paleoenvironmental reconstructions. |
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This hypothesis is based on the record of fossils and biogenic substances from periods before 50,000 years ago and the human artifacts found after 50,000 years ago. |
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The search for explanations of how mesophytes can survive in the desert brought me to the field of biogenic weathering and climatic changes in the Near East. |
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The goethite crystals are stable and well formed for a biogenic crystal. |
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They've also been able to characterize 145 of them, including such attributes as their proteolytic and lipolytic activities, flavor development and biogenic amine production. |
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The most common biogenic amines found in foods are histamine, tyramine, cadaverine, 2-phenylethylamine, spermine, sperm idi ne, putrescine, tryptamine, and agmatine. |
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If primary biogenic sources such as spicules and radiolarians existed, the biological elements have been obliterated by dolomitization and other processes. |
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Biogenic gas is created by methanogenic organisms in marshes, bogs, landfills, and shallow sediments. |
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Biogenic reefs are created by living stone coral, Astrangia poculata, certain shellfishes, and polychaete worms, such as Sabellaria vulgaris. |
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Biogenic materials consisting of cryptogams and plant fragments are also present. |
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The Biogenic Seaweed Antioxidant Broth delivers potent fucoidan, vitamins, and probiotics from various seaweeds to the epidermal basal layer. |
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Biogenic aragonite, like that composing the shells of most mollusks, dissolved rapidly on the sea floor after death. |
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Biogenic amines are well preserved by picrates such as Bouin but are also well preserved by formalin. |
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