Non-cellulosic structural polysaccharides in algal cell walls - III. Mannan in siphoneous green algaeThe Royal Society - Tập 169 Số 1015 - Trang 127-145 - 1968
Eva S. Frei, R. D. Preston
The cell walls of a number of green seaweeds, all members of the Codiaceae and the Dasy-cladaceae and includingCodiumandAcetabularia, are shown to containβ-1.4-linked mannan as the sole crystalline polysaccharide in the complete absence of cellulose. The X-ray diagram of the native mannan (almost identical wit...... hiện toàn bộ
Role of excitatory amino acid receptors in synaptic transmission in area CA1 of rat hippocampusThe 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
Predictive coding: a fresh view of inhibition in the retinaThe Royal Society - Tập 216 Số 1205 - Trang 427-459 - 1982
Mandyam V. Srinivasan, Simon B. Laughlin, Andreas Dubs
Interneurons exhibiting centre-surround antagonism within their receptive fields are commonly found in peripheral visual pathways. We propose that this organization enables the visual system to encode spatial detail in a manner that minimizes the deleterious effects of intrinsic noise, by exploiting the spatial correlation that exists within natural scenes. The antagonistic surround takes...... hiện toàn bộ
Breeding habits of Windermere charr, Salvelinus willughbii (Günther), and their bearing on speciation of these fishThe 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
Large-amplitude elongated-body theory of fish locomotionThe Royal Society - Tập 179 Số 1055 - Trang 125-138 - 1971
M. J. Lighthill
The elongated-body theory of the reactive forces on a fish moving in water (that is, forces resulting from the inertia of associated water movements) is extended so that a prediction of instantaneous reactive force between fish and water is obtained for fish motions of arbitrary amplitude, regular or irregular (§2). A preliminary application of the theory to the balance of rea...... hiện toàn bộ
Virus interference. I. The interferonThe Royal Society - Tập 147 Số 927 - Trang 258-267 - 1957
A. Isaacs, J. Lindenmann
During a study of the interference produced by heat-inactivated influenza virus with the growth of live virus in fragments of chick chorio-allantoic membrane it was found that following incubation of heated virus with membrane a new factor was released. This factor, recognized by its ability to induce interference in fresh pieces of chorio-allantoic membrane, was called interferon. Followi...... hiện toàn bộ
Mechanical properties of mother of pearl in tensionThe Royal Society - Tập 196 Số 1125 - Trang 443-463 - 1977
John D. Currey
Mother of pearl, or nacre, is one of a number of characteristic skeletal structures of molluscs, occurring in cephalopods, gastropods and bivalves. It consists of plates of aragonite, about 0.3 μm thick, arranged in sheets, with a tenuous protein matrix. Mechanical tests of nacre from all three classes show that it has a tensile strength of between 35 and 110 MN m
...... hiện toàn bộ
Morphogenesis of human placental chorionic villi: cytoskeletal, syncytioskeletal and extracellular matrix proteinsThe Royal Society - Tập 212 Số 1188 - Trang 305-316 - 1981
Colin Ockleford, Jennifer Wakely, R.A. Badley
Immunocytochemical and ultrastructural methods were used to investigate the distribution of a family of structural proteins in the human placenta near term. These reveal the distribution of cytoskeletal and ‘syncytioskeletal’ components that may account for some of the more obvious micromorphological features of placental structure. In the syncytiotrophoblast a potentially supporting struc...... hiện toàn bộ