(1) Following damage to anterodorsal CA1 cells and the alveus, acquisition was impaired but performance was normal when the task was learned preoperatively; postoperative acquisition and performance of the preoperatively learned task were impaired in animals with fimbrial lesions.
(2) APV also reduced the amplitude and duration of the IPSP induced by alveus stimulation.
(3) 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).
(4) After cutting through the alveus, stratum pyramidale (Spyr) and part of stratum radiatum (Srad), repetitive electrical stimulation of Schaffer collaterals and commissural fibers elicited decreases of [Ca2+]o in Srad, the synaptic area, but not in Spyr, the soma layer of the pyramidal neurons.
(5) The layers of the Hlc are: (1) the tangential layer; (2) the molecular layer; (3) the pyramidal layer; (4) the deep plexiform layer; (5) the alveus; and, (6) the ventricular ependyma.
(6) No detectable release was found when the cannula was located above the alveus, the fimbria or in the effluent of the slice.
(7) Specifically, neurons were identified in the alvear portions of the midline dorsal hippocampus as well as in the alveus and stratum oriens (occasionally) of CA 3.
(8) The lowest density was found in the alveus of CA(1) and CA(2) and the highest in the stratum granulosum of the area dentata.
(9) Tetanization of either the alveus or stratum oriens produced greater than 30 min depression of the radiatum field EPSP and population spike, but generally only in the presence of picrotoxin.
(10) Projections from the ventral subiculum course either obliquely through the angular bundle to innervate the amygdala and adjacent parts of the temporal lobe, or follow the alveus and fimbria to the precommissural fornix and medial corticohypothalamic tract.
(11) Numerous QPRT-i glial cells were also found along both sides of the fused hippocampal fissure and in the white matter including the alveus of Ammon's horn, whereas only a few were observed in the granule cell layer and the stratum pyramidale.
(12) In the hippocampus anti- and orthodromic activation across the alveus or the mossy fibre pathway led to a secondary staining of neighbouring pyramidal neurones and to a secondary staining of fibres which where afferent to the injected neurone.
(13) A high density of GABA-immunoreactive terminals was found at the limit of the stratum oriens with the alveus, in the stratum pyramidale and in the stratum lacunosum.
(14) In the monkey as well as in the rat, NPY-stained cells are present in the angular bundle and in the alveus.
(15) Antidromic population spikes, evoked from the alveus, were unaffected by NPY.
(16) The laminar profile of extracellular field potentials evoked by alveus or stratum radiatum stimulation was recorded at the CA1 region of guinea pig hippocampal slices.
(17) APV (50-100 microM) attenuated inhibition of the orthodromically evoked population spikes in the CA1 region produced by a conditioning stimulus to the alveus or to the stratum radiatum.
(18) In neurons within the foci, inhibitory postsynaptic potentials and the suppressing action of alveus stimulation on glutamate-induced single cell discharges remained unchanged during development of seizure activity, although excitatory postsynaptic potentials were potentiated.
(19) The membrane properties of interneurons situated near the border of stratum oriens and the alveus of the CA1 region were examined with intracellular recording and staining in rat hippocampal slices in vitro.
(20) The facilitation phenomenon appeared to be specific to the synapse of stratum radiatum afferents onto CA1 pyramidal cells since: (1) stimulation outside the radiatum layer did not produce the effect, (2) antidromic field potentials recorded in CA3 were unchanged, (3) EPSP threshold in CA1 was unchanged, and (4) alveus tetanization did not produce a facilitatory effect.
River
Definition:
(n.) One who rives or splits.
(n.) A large stream of water flowing in a bed or channel and emptying into the ocean, a sea, a lake, or another stream; a stream larger than a rivulet or brook.
(n.) Fig.: A large stream; copious flow; abundance; as, rivers of blood; rivers of oil.
(v. i.) To hawk by the side of a river; to fly hawks at river fowl.
Example Sentences:
(1) With fields and fells already saturated after more than four times the average monthly rainfall falling within the first three weeks of December, there was nowhere left to absorb the rainfall which has cascaded from fields into streams and rivers.
(2) In the far east is the arid, depressed country leading down Hell’s Canyon, which bottoms out at the Snake River, which the wolves crossed when they moved from Idaho, and which they now treat more as a crosswalk than a barrier.
(3) Living by the "Big River" as a child, Cash soaked up work songs, church music, and country & western from radio station WMPS in Memphis, or the broadcasts from Nashville's Grand Ole Opry on Friday and Saturday evenings.
(4) Infection level increased sharply in the age-group 6-10 years old among people residing far from the rivers.
(5) Philip Rivers intercepted on a slightly less deep heave in Washington!
(6) That has driven whole river systems to a complete population crash,” said Darren Tansley, a wildlife officer with Essex Wildlife Trust.
(7) Seventy-four strains of Aeromonas hydrophila isolated from water and sediments of the River Porma (León, N.W.
(8) I want to follow the west bank of the river south for some 100 miles to a bluff overlooking the river, where Sitting Bull is buried – and then, in the evening, to return to Bismarck.
(9) Biological monitoring was performed for one year at the site of an orange grove on the left bank of the river.
(10) Comparatively the virus strength sinks more slowly at 4 degrees C in the more mineralized river water (figure 2).
(11) Denni Karlsson and I are standing by a glacial river as it hammers through a rocky gorge.
(12) Masood’s car struck her, throwing her into the river.
(13) So Huck Finn floats down the great river that flows through the heart of America, and on this adventure he is accompanied by the magnificent figure of Jim, a runaway slave, who is also making his bid for freedom.
(14) Expect growing localised tensions around specific watersheds between one ethnic group and another, between farmers and cities, and so forth, he warns: “Rather than India versus Pakistan, it’s Karnataka versus Tamil Nadu over the allocation of a river that is shared between those two states.” The Water Stress Index , produced by UK risk analysis firm Maplecroft, provides an indication where water-related conflicts might be most likely to occur.
(15) The relatively small reservoir and the maintenance of a minimum flow of water on the trunk river means the plant will work on average at barely 40% of its 11,200MW capacity.
(16) Photograph: KHIZR KHAN This sombre, serene oasis overlooking the Potomac river might also prove the graveyard of Donald Trump’s ambitions for the US presidency.
(17) Larval populations from the three rivers were genetically distinct.
(18) Over 40% of fish originated from private fishfarms whereas 20% were of governmental origin (governmental fishfarms, rivers, lakes) and 20% from aquaria.
(19) This polymorphism enabled us to differentiate a Hudson River population from that encountered in the Maine rivers.
(20) In its more loose, common usage, it's a game in which the rivalry has come to acquire the mad, rancorous intensity of a Celtic-Rangers, a Real Madrid-Barcelona, an Arsenal-Tottenham, a River Plate-Boca Juniors.