All Outputs (1197)

The effects of brine on the invertebrate faunas of some inland waters
Thesis
Buckley, B. R. (1977). The effects of brine on the invertebrate faunas of some inland waters

The macroinvertebrate faunas of various inland saline waters in Cheshire and N.Staffordshire were investigated. The sites included a stream and a series of ponds on a commercial brinefield, a canal receiving a brine effluent, and a number of brine sp... Read More about The effects of brine on the invertebrate faunas of some inland waters.

Microbubble detection during extracorporeal circulation for open heart surgery
Thesis
Furness, A. (1977). Microbubble detection during extracorporeal circulation for open heart surgery

In a review of the scientific literature clinical and experimental evidence is produced to implicate microbubbles as a source of brain damage during extracorporeal circulation for open heart surgery. Direct evidence of tissue damage and definitive, q... Read More about Microbubble detection during extracorporeal circulation for open heart surgery.

Variable and constant errors of perceived angle size
Thesis
Hakiel, S. (1978). Variable and constant errors of perceived angle size

Experiments were carried out to characterise the perception of angles in terms of the acuity and constant error of comparisons of acute angle sizes. Both measures, determined by the forced choice method of constant stimululi, were found to increase l... Read More about Variable and constant errors of perceived angle size.

Ecology of the chironomidae (Diptera) in some gravel and sand pits
Thesis
Titmus, G. (1979). Ecology of the chironomidae (Diptera) in some gravel and sand pits

The chironomid faunasof several gravel and sand pits in Staffordshire and Buckinghamshire were investigated. The sites were chosen to reflect a cross-section of the lake types created by the aggregate extraction industry and were also of varying age.... Read More about Ecology of the chironomidae (Diptera) in some gravel and sand pits.

Chromatic, adaptive, and general properties of cat retinal ganglion and lateral geniculate cells: a mid-mesopic study
Thesis
(1978). Chromatic, adaptive, and general properties of cat retinal ganglion and lateral geniculate cells: a mid-mesopic study

Data were collected at the retinal ganglion (RGC) and lateral geniculate cell (LGC) levels in lightly anaesthetised cats at a mid- mesopic background adapting luminance. Investigation of the rod- and cone-mediated properties of cells was accomplished... Read More about Chromatic, adaptive, and general properties of cat retinal ganglion and lateral geniculate cells: a mid-mesopic study.

The McCollough effect: a study of some temporal characteristics
Thesis
(1978). The McCollough effect: a study of some temporal characteristics

A parametric study was made of the influence of the temporal parameters of stimulation on initial strength and rate of decay of the McCollough Effect. Using a tachistoscope to accurately control stimulus presentation timings, it was shown that the le... Read More about The McCollough effect: a study of some temporal characteristics.

The effects of hair cell damage on cochlear function
Thesis
(1978). The effects of hair cell damage on cochlear function

The main aim of this study was to investigate the threshold and tuning properties of cochlear nerve fibres in kanamycin treated guinea pigs having various degrees of hair cell loss restricted to outer hair calls (OHCs).
The frequency threshold curve... Read More about The effects of hair cell damage on cochlear function.

Protein catabolism in cultured rat yolk sac
Thesis
(1978). Protein catabolism in cultured rat yolk sac

An in vitro culture technique for the quantitation of pinocytosis
in the rat visceral yolk sac was modified, by removing calf serum from
the incubation medium, to permit determination of the rate of uptake of
substrates in the absence of competing... Read More about Protein catabolism in cultured rat yolk sac.

Protein and peptide catabolism within the rat yolk sac
Thesis
(1978). Protein and peptide catabolism within the rat yolk sac

Associative responses to colour and pattern in the human visual system
Thesis
(1978). Associative responses to colour and pattern in the human visual system

Psychophysical methods have been applied to the following four aspects of the McCollough effect with a view to the elucidation of its mechanism and its locus:
(1) time course of build-up and decay
(2) association of colour with scale of pattern... Read More about Associative responses to colour and pattern in the human visual system.

The coding of intensity in the peripheral auditory system of the cat
Thesis
(1978). The coding of intensity in the peripheral auditory system of the cat

A discrepancy exists between the dynamic range of peripheral auditory neurones and the range over which the human ear maintains fine intensity discrimination. Psychophysical experiments, using simultaneous high and low pass (bandstop) masking noise,... Read More about The coding of intensity in the peripheral auditory system of the cat.

The functional response of plants to trampling pressure
Thesis
(1978). The functional response of plants to trampling pressure

he responses of Calluna vulgaris, Phleum bertolonii and Plantago lanceolata to trampling pressure, applied at controlled intensities and frequencies, were investigated.
Substantial water stresses develop within shoots of C, vulgaris following damage... Read More about The functional response of plants to trampling pressure.

Peptide hydrolases of the brush border membrane from human small intestine
Thesis
(1978). Peptide hydrolases of the brush border membrane from human small intestine

A method has been developed for the purification of brush
border membranes from human small intestine. The method did not involve the use of EDTA-buffers or disruption of brush borders with high concentrations of Tris. On average, a 24-fold increas... Read More about Peptide hydrolases of the brush border membrane from human small intestine.

The mechanism of pinocytosis in the rat visceral yolk sac
Thesis
(1979). The mechanism of pinocytosis in the rat visceral yolk sac

The rat visceral yolk sac cultured in vitro was used as model system to study the mechanism of pinocytosis. Fluid-phase pinocytosis was completely inhibited at low temperature and on addition of metabolic inhibitors to the culture medium, was partial... Read More about The mechanism of pinocytosis in the rat visceral yolk sac.

Studies of the release of exogenous substances from rat liver lysosomes
Thesis
(1979). Studies of the release of exogenous substances from rat liver lysosomes

Factors involved in the induction of platelet aggregation during the collection and storage of human blood
Thesis
(1979). Factors involved in the induction of platelet aggregation during the collection and storage of human blood

In this thesis, some of the causes and mechanisms of platelet aggregation have been discussed. Platelet/granulocyte aggregates occur in stored blood and have been implicated in the development of respiratory distress syndrome following massive blood... Read More about Factors involved in the induction of platelet aggregation during the collection and storage of human blood.

The stimulus specificities of different components of pattern-onset visual evoked potentials in man
Thesis
(1979). The stimulus specificities of different components of pattern-onset visual evoked potentials in man

The transient visual evoked potential elicited by the onset of a briefly presented pattern typically contains three major components occurring within 200ms of stimulus onset. The first of these, Cl, is believed to originate in striate cortex, while t... Read More about The stimulus specificities of different components of pattern-onset visual evoked potentials in man.

A study of macromolecule absorption in vitro by the small intestine of adult rats
Thesis
(1980). A study of macromolecule absorption in vitro by the small intestine of adult rats

A method has been developed for the study of macromolecular uptake by the everted sacs of adult rat intestine in vitro. The method incorporated a preparation procedure which minimized temporary hypoxia in the tissue. The complex medium TC 199 contain... Read More about A study of macromolecule absorption in vitro by the small intestine of adult rats.

Studies on primary production, nutrients and decomposition in a mown grassland ecosystem
Thesis
(1980). Studies on primary production, nutrients and decomposition in a mown grassland ecosystem

The effects of mowing intensity and cessation of mowing on ecosystem structure and function in a semi-permanent grassland are studied, with particular application to amenity grasslands. Intensive mowing leads to increased investment in below-ground p... Read More about Studies on primary production, nutrients and decomposition in a mown grassland ecosystem.

Visual comparison of patterns: the significance of pattern transformation and pattern arrangement in the visual field
Thesis
(1980). Visual comparison of patterns: the significance of pattern transformation and pattern arrangement in the visual field

The two main types of scheme for the internal representation and internal processing of visual stimuli involve either a 'pointlllistic' internal representation to which various internal compensatory transformations can be applied, or a structured, in... Read More about Visual comparison of patterns: the significance of pattern transformation and pattern arrangement in the visual field.