The shift toward participatory, advocacy and social architecture and planning that occurred in the 1960's and 70's in North America was illustrated with the work of the Community Design Centers. These Community Design Centers provided architectural, planning and technical services to low income groups with an emphasis on user participation. The Community Desgin Center provided a model by which the professional, the student and the community could work together as a team on current issues within the community. This study examines the basic notions of the Community Design Centers in order to determine the principles at work in the model. The Urban Design Center of Vancouver, 1970-76 is used as a specific case study. / Applied Science, Faculty of / Architecture and Landscape Architecture (SALA), School of / Graduate

No abstract included. / Arts, Faculty of / History, Department of / Graduate

No abstract included. / Arts, Faculty of / Vancouver School of Economics / Graduate

No abstract included. / Forestry, Faculty of / Graduate

No abstract included. / Arts, Faculty of / History, Department of / Graduate

No abstract included. / Arts, Faculty of / History, Department of / Graduate

No abstract included. / Science, Faculty of / Earth, Ocean and Atmospheric Sciences, Department of / Graduate

No abstract included. / Arts, Faculty of / History, Department of / Graduate

Field and culture studies have been carried out with the epiphytic red alga, Ceramium codicola J. Agardh, with the objective of determining what factors in its biology cause it to be limited to growth on one host plant, Codium fragile (Suringar) Hariot. A survey of epiphytes of C. fragile and C. setcheIIii confirm the absence of C. codicoIa on C. setcheIIii and shows that C. codicola is the most abundant epiphyte on C. fragiIe. More species of epiphytes were present in wave sheltered areas. C. codicoIa was not present in samples from the Strait of Georgia. In culture, C. codicoIa grew to reproductive maturity apart from C. fragiIe from spores, but the life history was not completed. The presence of living or extracted C. fragiIe or C. setcheIIii did not promote germination, growth or reproduction of C. codicola, and typically inhibited it. C. codicoIa did not grow well at temperatures above 15°C in culture; C. fragiIe, Ceramium pacificum and C. gardner i grew weII at 10-18°C. Rhizoids of C. codicola have bulbous tips, which appears to be genetically determined. Substratum can affect later development of these rhizoids, which may obscure the bulbous nature of the rhizoid tips. C. codicoIa is unable to produce digitate holdfasts on its rhizoid tips, as was observed in other Ceramium spp. , and may only be able to attach by entangling its rhizoids in loosely constructed substrata such as Codium spp. C. setcheIIii is not suitable because it is too compact, and penetration of rhizoids is inhibited. Field studies show that C. codicoIa is reproductive throughout the year, although reduced in the winter. Thallus length was also reduced in the winter. In addition, thalIi were longer in wave sheltered sites, and longer in the upper regions of their intertidal distribution. Male and female gametophytes and tetrasporophytes of C. codicola exhibit a hetermorphism in branching pattern. Gametophytes differ from tetrasporophytes by having more primary branches and larger angles of branching. Females differ from males by having a higher degree of proliferous branching, resulting in a higher number of primary branches and a higher branching ratio. Branching pattern in females may be the result of continued growth of involucral ramuli, and it may optimize reproductive potential. / Science, Faculty of / Botany, Department of / Graduate

The 1965 Hope Slide is one of the largest rock avalanche to have occurred in recent historic time. Although this landslide is very well known, virtually no comprehensive investigation was undertaken. This study represents a first, but essential, step to begin a detailed evaluation of the mass movement; it is also part of a research program investigating the landslide hazards along strategic transportation corridors in southwestern British Columbia (Savigny, 1990, in prep.). The geology at the slide site was confirmed to consist of greenstone and felsite, however, two varieties of each of the rock type were found: the greenstone occurs in a massive and a slightly schistose form, and the felsite occurs in a buff coloured and a greyish-white coloured variety. Discontinuities at the study site include two steeply dipping faults, three dominant sets (Jl, J2 and J3) and a shallower dipping set of joints, the orientations of the latter set closely relate to those of Jl, and a number of gouge filled shear zones along the buff felsite and greenstone contacts. The 1965 failure surface was probably controlled by two mechanisms, in which the steeper upper portion of the slope was largely controlled by pervasive step-like discontinuities (Jl and the shallower joints); the shallower lower part of the slope was controlled by gouge filled buff felsite-greenstone contacts. These two mechanisms also support the two slide events hypothesis put forward by Weichert et al. (1990), who suggested that the seismic signals recorded on the day of the landslide were the results, rather than the cause, of the mass movement(s). Based on the evidence found in this study, it is proposed that the lower slope (below the upper northeast trending fault) failed first along the gouge filled lithologic contacts, due to the debuttressing effects of the lower slope and the existing weakness along the joints, the upper slope subsequently failed. Slope stability analyses indicate that-the slope was in critical conditions prior to the 1965 slide. The results also demonstrate that the inherent weakness withinjthe rock mass was sufficient to explain the occurrence of failure without external influences. / Science, Faculty of / Earth, Ocean and Atmospheric Sciences, Department of / Graduate