The Royal Society

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Neural events underlying learning in insects: changes in pacemaker
The Royal Society - Tập 195 Số 1120 - Trang 395-415 - 1977
Marjorie H. Woollacott, Graham Hoyle
Computer-controlled operant-conditioning training procedures were used to raise (up-learning) or lower (down-learning) the mean frequency of discharge of the anterior adductor coxa motoneurone of the locust Schistocerca gregaria . Intracellular recordings were made from the soma of the motoneurone during training. The neurone ...... hiện toàn bộ
Breeding habits of Windermere charr, Salvelinus willughbii (Günther), and their bearing on speciation of these fish
The Royal Society - Tập 163 Số 991 - Trang 232-284 - 1965
W E Frost
In Windermere charr, Salvelinus willughbii, are either (1) autumn spawners, main breeding period November, most spawning on the lake shore, in shallow water, some in the main inflowing stream; or (2) spring spawners, main breeding period February-March, spawning in the lake only and in deep water. The comparison of these two is mainly based on the autumn spawners netted on the...... hiện toàn bộ
The fate of haemoglobin in Rhodnius prolixus (Hemiptera) and other blood-sucking arthropods
The Royal Society - Tập 131 Số 865 - Trang 313-339 - 1943
V. B. Wigglesworth
In Rhodnius most of the haemoglobin ingested is broken down in the lumen of the gut to protohaematin which is excreted unchanged. But a small amount is absorbed and circulates in the haemolymph as kathaemoglobin (parahaematin). This is taken up by the salivary glands where it appears as a cherry-red pigment with properties sim...... hiện toàn bộ
Fatty acid modifies Ca 2+ -dependent potassium channel activity in smooth muscle cells from the human aorta
The Royal Society - Tập 237 Số 1288 - Trang 259-266 - 1989
Pìotr Bregestovski, Victoria M. Bolotina, V. N. Serebryakov
By using the patch–clamp technique the effect of 2-decenoic acid (DA) on Ca 2+ -activated potassium (K + ) channels in the membrane of smooth muscle cells from the human aorta was studied. In the presence of 0.5 μM Ca 2+ and 2 mM Mg ...... hiện toàn bộ
Role of excitatory amino acid receptors in synaptic transmission in area CA1 of rat hippocampus
The Royal Society - Tập 236 Số 1285 - Trang 373-384 - 1989
S.N. Davies, Graham L. Collingridge
The new antagonist 6-cyano-7-nitroquinoxaline-2,3-dione (CNQX), which blocks responses to kainate and quisqualate, has been used in conjunction with D-2-amino-5-phosphonovalerate (APV), which blocks selectively responses to N -methyl-D-aspartate (NMDA), to determine the role of excitatory amino acid receptors in synaptic trans...... hiện toàn bộ
Four new species of choanoflagellates from Arctic Canada
The Royal Society - Tập 189 Số 1094 - Trang 15-27 - 1975
Irene Manton, J. Sutherland, B. S. C. Leadbeater
By means of electron microscopy applied to wild material prepared as dry whole mounts, descriptions are given of external morphology, including lorica construction, of four new species of collared flagellates, namely: Pleurasiga caudata, Salpingoeca longicaudata, Parvicorbicula serrulata and Diaphanoec...... hiện toàn bộ
Problems of structure and biology in a large collared flagellate ( Diaphanoeca grandis Ellis) from arctic seas
The Royal Society - Tập 213 Số 1190 - Trang 15-26 - 1981
Irene Manton, G. B. Bremer, K. Oates
On the basis of wild material processed into dry who mounts immediately following collection in two arctic localities (Hudson Bay and under sea ice in North Alaska), new insight has been obtained into lorica structure and development in Diaphanoeca grandis (Choanoflagellata) by means of scanning electron microscopy supplementi...... hiện toàn bộ
Crystallographic studies of the activity of hen egg-white lysozyme
The Royal Society - Tập 167 Số 1009 - Trang 378-388 - 1967
C. C. F. Blake, L.N. Johnson, G. A. Mair, A. C. T. North, D. C. Phillips, V. R. Sarma
The chemical evidence for the enzymic activity of lysozyme will be discussed in detail by other speakers at this meeting, but in order to describe our crystallographic studies of the interactions between the enzyme and its substrates it is necessary to summarize briefly what was known about them at the beginning of our work. Simultaneously with his discovery of lysozyme Flemin...... hiện toàn bộ
Cytochrome and cytochrome oxidase
The Royal Society - Tập 127 Số 847 - Trang 167-191 - 1939
D. Keilin, E. F. Hartree
It was previously shown that the addition of cytochrome c to a heart-muscle preparation greatly increases its power of catalysing the oxidation of such substances as p -phenylene diamine, hydroquinone, cysteine and ascorbic acid. It was demonstrated that the oxidations of thes...... hiện toàn bộ
Vitamin A and reproduction in rats
The Royal Society - Tập 159 Số 976 - Trang 510-535 - 1964
Jeffrey P. Thompson, J. M. Howell, G. A. J. Pitt
Retinoic acid (vitamin A acid), the carboxylic acid corresponding to the primary alcohol retinol (vitamin A), has previously been thought to fulfil all the functions of vitamin A except in vision, since rats fed a diet deficient in retinol but supplemented with retinoic acid grow well, outwardly appearing healthy, yet become blind. This paper reports that female rats on such a diet had nor...... hiện toàn bộ
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