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1998

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Articles 541 - 546 of 546

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The Dynamics Of Ethnic Residential Patterns In The Toronto Census Metropolitan Area (Ontario), Marinel Mandres Jan 1998

The Dynamics Of Ethnic Residential Patterns In The Toronto Census Metropolitan Area (Ontario), Marinel Mandres

Theses and Dissertations (Comprehensive)

Responding to contemporary urban changes and increasing social complexities, this research endeavours to determine whether recently arrived immigrants still follow residential configurations as prescribed by traditional urban ecological models or whether ethnic groups are displaying a new dispersed (i.e. ‘shot gun’) domiciliary pattern characterized by enclave scattering. A new conceptual model describing various spatial outcomes relative to primary destinations of initial immigrant settlement and subsequent relocation is developed according to propositions discussed in the literature review. Subsequent statistical analyses focus upon the hypothesized post-1980 areal placement of six ethnic groups (Greek, Jewish, Multiethnic, Aboriginal, Chinese, and Jamaican) using the British …


Modelling Spatial Processes: The Identification And Analysis Of Spatial Relationships In Regression Residuals By Means Of Moran's I (Germany), Michael Tiefelsdorf Jan 1998

Modelling Spatial Processes: The Identification And Analysis Of Spatial Relationships In Regression Residuals By Means Of Moran's I (Germany), Michael Tiefelsdorf

Theses and Dissertations (Comprehensive)

This thesis deals with the implementation, identification and analysis of relationships between geo-referenced objects. Significant spatial relationships manifest themselves in a spatial process which is modelled on a combination of spatial structure and spatial autocorrelation levels. Simple spatial structures reflect plain spill-over effects between adjacent spatial objects, whereas theoretical guided spatial structure mirror functional exchange relationships within the system of spatial objects. In empirical work, the underlying spatial process is unknown. The linking mechanism between a hypothetical spatial structure and a stochastic input must be identified from the observed data. This is accomplished here by means of the test statistic …


Labour Market Marginalisation Of Young Latinos In San Antonio, Texas: A Geographical Perspective Of Neighbourhood Processes, Harald Sven Bauder Jan 1998

Labour Market Marginalisation Of Young Latinos In San Antonio, Texas: A Geographical Perspective Of Neighbourhood Processes, Harald Sven Bauder

Theses and Dissertations (Comprehensive)

Latinos cluster in the lower segments of the U. S. labour market and therefore suffer disproportionately from labour market marginalisation and poverty. This dissertation examines supply side forces of the ethnic division of labour. Expanding upon structuration theory and realism, the research investigates the role of place in shaping career decisions of Latino youth. A case study of greater San Antonio, Texas, uses quantitative analysis of U. S. Census data to examine the patterns of youth labour market marginalisation in census tracts. In addition, qualitative in-depth interview analysis was conducted with twenty-nine youth and seventeen community-based institutions in two selected …


Land Transformation, Highly Governed Landscapes And Landscape Health: A Case Study Of The Lower Piave Area Of Northeastern Italy, Pietro Bertollo Jan 1998

Land Transformation, Highly Governed Landscapes And Landscape Health: A Case Study Of The Lower Piave Area Of Northeastern Italy, Pietro Bertollo

Theses and Dissertations (Comprehensive)

This dissertation examines the issue of biophysical landscape health. Its primary objective is to produce an interpretation of biophysical landscape health for the highly governed landscapes of the Lower Piave area of northeastern Italy. Highly governed landscapes are considered to be those which are highly controlled by humans to an even greater degree than normal cultural landscapes. An example is reclaimed agricultural landscapes such as those of the northeastern Italian coastal belt, from which the Lower Piave case study is drawn. These landscapes are highly governed because without constant human intervention, they would revert back to their former marsh state. …


Ecological Impact Of Arsenic, Chromium And Lead From Application Of Recovered Screened Material On Florida Soils, Dimitrios. Scarlatos Jan 1998

Ecological Impact Of Arsenic, Chromium And Lead From Application Of Recovered Screened Material On Florida Soils, Dimitrios. Scarlatos

Electronic Theses and Dissertations 1990 - 1999

Disposal of construction and demolition (C&D) debris is a major problem. During recycling operations, the debris is passed over screens, generating what is called Recovered Screened Material (RSM). Previous analyses of RSM indicated high arsenic (As) levels. Thus, RSM is disposed in landfills in spite of the fact that natural soils may contain As levels higher than the proposed concentrations for soil clean-up goals. RSM samples were collected and analyzed from seven C&D debris recycling facilities and from other sites. The average arsenic content found in RSM ranged between residential and industrial clean-up goals. Chromium and lead levels in RSM …


Event-Based Data Model For Transportation Information Systems, Dongmei Wang Jan 1998

Event-Based Data Model For Transportation Information Systems, Dongmei Wang

Electronic Theses and Dissertations 1990 - 1999

Trip-based data can provide important information about travel patterns and travel characteristics of people. To handle this type of transportation movement data in GIS (Geographic Information Systems), a new data model is needed to incorporate different aspects of a transportation movement with its spatial properties. From the study presented in this thesis, an event-based data model for transportation movement data was developed with the concepts of object orientation, feature-based approach, and relative referencing methods. The implementation of this new data model with a prototype system shows the capability of this data model in handling transportation movement data. This data model …