(n.) A variety of trap or basaltic rock, containing small cavities, occupied, wholly or in part, by nodules or geodes of different minerals, esp. agates, quartz, calcite, and the zeolites. When the imbedded minerals are detached or removed by decomposition, it is porous, like lava.
(a.) Alt. of Amygdaloidal
Example Sentences:
(1) The anticonvulsant properties of the endogenous excitatory amino acid antagonist, kynurenic acid (KYA), were studied in prepubescent and adult rats using the amygdaloid kindling model of epilepsy.
(2) On the other hand, the limbic after-discharges to the hippocampal or amygdaloid stimulation were enhanced by Z. mioga as well as chlorpromazin, but they were inhibited by diazepam.
(3) Electrical amygdaloid kindling was carried out with a 15 min inter-stimulus interval (ISI) in a control situation with intravenous (i.v.)
(4) While acquisition was not influenced by saline injections into various other cerebral structures, it was significantly altered by similar injections into these amygdaloid nuclei, especially by those into the BL nucleus, suggesting that this nucleus is particularly involved in passive avoidance learning.
(5) In contrast, the efferent projections of the main olfactory bulb are distributed to the anterior olfactory nucleus, the tenia tecta, the olfactory tubercle, the pyriform cortex, the anterior cortical amygdaloid area, the posterolateral cortical amygdaloid area, and to the lateral entorhinal cortex.
(6) Amygdaloid kindling of rats produced an increase in hippocampal Met5-enkephalin-Arg6-Gly7-Leu8 and cholecystokinin immunoreactivities and simultaneously a decrease in dynorphin A1-8 content.
(7) Increased hippocampal DG uptake was correlated with prolonged amygdaloid after discharge duration but not with the behavioral seizure stage.
(8) These fibers terminate in the dorsal part of the medial amygdaloid nucleus and in the capsule of the central nucleus.
(9) The present study was designed to investigate the effects of electrical kindling in vivo on GABA immunoreactivity (GABA-IR) of the lateral and basolateral amygdaloid nuclei 2-6 months post-stimulation.
(10) Small bilateral electrolytic lesions in amygdaloid body restricted to basolateral, medial and central nuclei were produced.
(11) However, it is also apparent that the majority of putative transmitter types within the amygdaloid vagal projection still are unknown.
(12) Other areas related with the amygdaloid complex do not exhibit such an early increase, but this alteration occurs when the kindling process is fully established.
(13) This was particularly the case in the hypothalamus (areas of origin or termination of the tuberohypophyseal and incertohypothalamic dopamine systems) but also in the hippocampal formation (alveus, fimbria, hilus dentate gyrus), amygdaloid complex (anterior, basolateral, medial nuclei).
(14) Different effects of separate amygdaloid nuclei on insulin secretion were revealed in acute experiments.
(15) Effects of amygdaloid lesions on the switch-off behavior (SOB) and behavioral changes induced by a delayed reinforcement (DR) for SOB were investigated in 12 cats.
(16) These results indicate that terminals of intra-amygdaloid fibers expand from the cellular part to the molecular layer in the MAN and make synaptic contacts in this layer following the denervation of the AOB fibers.
(17) The findings provide further information about the synaptic organization of afferents to the amygdala, and indicate that single amygdaloid neurons play a role in the synaptic integration of input from these diverse sources.
(18) On the other hand suppression of dominance induced by clonidine given bilaterally into the cortical amygdaloid nucleus was resistant to desipramine treatment.
(19) The administration of 5 x 10(-8) moles of dibutyryl cyclic AMP through the cannula implanted into the amygdaloid complex also induced behavioral and electroencephalographic abnormalities similar to those found in the cholera toxin-treated animals.
(20) A moderate amount of amygdaloid terminals were located within the rostral A6 (locus coeruleus) and A2 (nucleus of the solitary tract) groups.
Decomposition
Definition:
(n.) The act or process of resolving the constituent parts of a compound body or substance into its elementary parts; separation into constituent part; analysis; the decay or dissolution consequent on the removal or alteration of some of the ingredients of a compound; disintegration; as, the decomposition of wood, rocks, etc.
(n.) The state of being reduced into original elements.
(n.) Repeated composition; a combination of compounds.
Example Sentences:
(1) The ADAM derivative of carnitine was separated from decomposition products of the reagent and related compounds such as amino acid derivatives on a silica gel column eluted with methanol-5% aqueous SDS-phosphoric acid (990:10:1).
(2) The decomposition of nafcillin and penicillin G solutions was hastened significantly by magnesium sulphate due to effect on the pH values of the solutions.
(3) The UV and IR absorption spectra of compounds present in the eluate were compared with those of model compounds that were assumed to exist in the gel as impurities after the polymerization (monomers and oligomers of hydroxyethyl methacrylate, decomposition products of initiators).
(4) The decomposition of nitrosourea is facilitated when a proton or lithium ion is positioned at the oxygen of the nitroso group.
(5) Inactivation is due to alkylation by 2-methylene-3(2H)-furanone, a decomposition product of the enzymic product 3'-keto-2'-deoxyuridine triphosphate.
(6) During heat treatment, decomposition to isopilocarpine predominated over decomposition to pilocarpic or isopilocarpic acid.
(7) The rate of decomposition of cis-4-OHCP was much faster in plasma than in buffer at pH 7.4.
(8) Hydroxyapatite thermal decomposition product is a mixture of alpha-tricalcium phosphate and tetracalcium phosphate.
(9) A quantitative assay has been developed for putrescine, cadaverine, histamine, and several free amino acids--lysine, arginine, and histidine--as a measure of decomposition.
(10) At temperatures of 200-300 degrees C hexamine decomposition is reported to produce mainly ammonia and formaldehyde.
(11) The hygienic control of polluted surface waters has to be correlated with measurements of the decomposition rate of heterotrophic microbial populations.
(12) Using the malonic acid concentration as a measure of decomposition, this method was used to determine the hydrolytic stability of Meldrum's acid and its skin penetration properties.
(13) Their growth development during the treatment agreed very well with the results of decomposition and deodorization.
(14) The kinetic 13C isotope effect on the decomposition of carbamoyl phosphate to cyanate and phosphate is 1.058.
(15) Enhanced esterification of cholesterol could function as an early primary factor injuring the myelin membrane, the lysocompounds may be involved at a later stage in the pathomechanism of myelin decomposition in the central nervous system.
(16) The cholesterol is possibly a decomposition product of the monohydrate.
(17) The importance of the decomposition of phosphatidylinosite and of its phosphate esters in binding of certain ligands to receptors is shown.
(18) By decomposition of reconstituted receptors with proteases, we demonstrated the homogeneous orientation of the receptor with its extracellular head group pointing to the convex side of the vesicles.
(19) The injected decomposition product was found to be solid at the time of sacrifice in all animals.
(20) The ion content of heart tissue was measured with flame spectrometer after the decomposition of myocardium by Lumatom tissue solubizer.