Effects of ecosystem protection on scallop populations within a community-led temperate marine reserve

This study investigated the effects of a newly established, fully protected marine reserve on benthic habitats and two commercially valuable species of scallop in Lamlash Bay, Isle of Arran, United Kingdom. Annual dive surveys from 2010 to 2013 showed the abundance of juvenile scallops to be significantly greater within the marine reserve than outside. Generalised linear models revealed this trend to be significantly related to the greater presence of macroalgae and hydroids growing within the boundaries of the reserve. These results suggest that structurally complex habitats growing within the reserve have substantially increased spat settlement and/or survival. The density of adult king scallops declined threefold with increasing distance from the boundaries of the reserve, indicating possible evidence of spillover or reduced fishing effort directly outside and around the marine reserve. However, there was no difference in the mean density of adult scallops between the reserve and outside. Finally, the mean age, size, and reproductive and exploitable biomass of king scallops were all significantly greater within the reserve. In contrast to king scallops, the population dynamics of queen scallops (Aequipecten opercularis) fluctuated randomly over the survey period and showed little difference between the reserve and outside. Overall, this study is consistent with the hypothesis that marine reserves can encourage the recovery of seafloor habitats, which, in turn, can benefit populations of commercially exploited species, emphasising the importance of marine reserves in the ecosystem-based management of fisheries

Cytocentrifugation of cerebrospinal fluid with dextran. Improvement of the standard technique using the cytospin apparatus

A method of processing cerebrospinal fluid (CSF) with a dextran solution admixture is described for use with the Cytospin apparatus. The method gave better results than the standard technique, and, compared with the CSF sedimentation method, it provided a reliable, although decreased, cell recovery and a higher quality of cell morphology.SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Fundamental aspects of the developing brain: Synapse formation

The phenomena presiding over synaptogenesis in the developing brain, notably death of neurons and the nerve growth factor are described as well as the neurobiological and ultrastructural features of synapse maturation. Synapse and connection specificity in the brain versus plasticity are given consideration. Infantile neuroaxonal dystrophy is suggested as a possible example of defective synaptogenesis.SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Neurologie infantile: (données classiques et récentes)

1 édition 1 tirage Année Académique 1978-1979MED-LICENCEinfo:eu-repo/semantics/published

Séméiologie neurologique (préparation aux démonstrations): séméiologie neurologique de l'enfant

1e doctorat en médecine chir. et acc.info:eu-repo/semantics/published

Abrégé de neurologie infantile

Année Académique 1978-1979 édition revue et corrigéeinfo:eu-repo/semantics/publishe

The diencephalic syndrome in infants: A review in relation to optic nerve glioma

A study of the diencephalic syndrome in cases so far collected from the literature was carried out on the clinical, macroscopic and histological brain findings found recorded in, respectively, 29, 25 and 34 cases. For comparison, 3 further cases with this syn- drome were described, in which a diagnosis of optic nerve glioma could be made. The review of the 39 cases with the diencephalic syndrome has shown that in 90°/o of these patients an extensive glioma of the 3rd ventricle had been present. 70% of these patients had additional glioma of optic nerves and/or chiasm with an equal amount of infants having diminished visual acuity in one or both eyes. From these, so far unreported, findings, strong suggestive evidence was thus presented that the ‘diencephalic syndrome’ described in infants was indeed a mor¬bid entity, namely, a hypothalamo-optic glioma. The further question whether this brain tumour was a primary optic nerve rather than a primary diencephalic glioma could presently not be firmly answered from the reviewed data of the literature. © 1972 S. Karger AG, Basel.SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Burkitt lymphoma. EBV nucleoid-like structures and lack of capsids in lymphoblasts

Burkitt lymphoma biopsies and the CSF malignancy have been investigated ultrastructurally. The tumor cells were found to contain vermicellar bodies formed by rod-like structures similar to those suggested to represent HSV nucleods in HSV encephalities. But, unlike the HSV disease and BL in culture, no nucleocapsids nor empty capsids were detected. It is suggested that the rods in the Burkitt lymphoblasts may well represent EBV nucleoids and that the absence of capsids may be another characteristic of the EBV in BL in situ.SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Histological Evidence of Optic Chiasma Glioma in the “Diencephalic Syndrome”

Diencephalic syndrome of infancy occurred in an infant in whom an optic chiasma glioma was confirmed by clinical signs and histological examination. It is, to our knowledge, the first histological examination of the optic pathways and evidence of optic chiasma glioma to be reported in this syndrome. © 1973, American Medical Association. All rights reserved.SCOPUS: ar.jinfo:eu-repo/semantics/publishe

CSF cells in tuberculous meningitis. Humoral and cellular immune response

In 10 patients with tuberculous meningitis both T and B lymphocyte activation was observed in the CSF from clinical onset of disease. During the course of the illness, the humoral response remained most marked, disappearing by 2 months, while the cellular immune response continued for about another 3 months. This contrasts with acute viral meningitis, in which both responses cease within 1-2 weeks of disease.SCOPUS: ar.jinfo:eu-repo/semantics/publishe