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21.
Daniel W. Harrington Kathi Wilson Susan J. Elliott Ann E. Clarke 《The Canadian geographer》2013,57(4):431-440
22.
F. Alan Hart Jeremy M. V. Storey Stuart J. Adams Robin P. Symonds J. Nicholas Walsh 《Journal of archaeological science》1987,14(6):577-598
Over 200 sherds of samian and colour-coated pottery of late 2nd or early 3rd century date have been analysed by inductively coupled plasma (ICP) emission spectrometry. Most of this material was excavated at Colchester, England; the remainder is related East Gaulish material. Some clay samples were also analysed. The material divides, after multivariate statistical analysis, into 11 clusters. These accord well with known archaeological evidence and suggest assignments of origin where these are uncertain. In particular, the archaeological evidence for a link between Colchester and the Sinzig potters is supported. 相似文献
23.
Tim Schwanen Martin Dijst Frans M. Dieleman 《Tijdschrift voor economische en sociale geografie = Journal of economic and social geography = Revue de géographie économique et humaine = Zeitschrift für ?konomische und soziale Geographie = Revista de geografía económica y social》2001,92(3):347-360
The use of the passenger car is a major cause of environmental degradation and increasing congestion on traffic arteries. Policy‐makers therefore seek ways to curtail this form of private transport. Scientific research can help them attain this goal by identifying factors that influence travel behaviour. This paper examines the mobility of senior citizens with respect to various leisure activities, an area that has remained under‐exposed. The analysis shows that older people prefer to take the car for trips in their leisure time. If they own a vehicle, they tend to use it frequently, irrespective of where they live. Characteristics of the residential environment mainly influence the modal choice of seniors who do not have a car of their own. Public transport is primarily used as a substitute for walking and cycling; public transport does not offer seniors a real alternative to the car. 相似文献
24.
MICHAEL BEDWARD CHRISTOPHER C. SIMPSON MURRAY V. ELLIS LISA M. METCALFE 《Geographical Research》2007,45(4):348-357
We consider the history of woodland clearing in central western New South Wales, Australia, which has led to the present highly cleared and fragmented landscape. A combined approach is used examining available historical land‐use data and using regression analysis to relate the pattern of cleared and wooded areas in the recent landscape to environmental variables, taking into account the contagious nature of clearing. We also ask whether it would be possible to apply a simple simulation modelling approach to reconstruct a credible historical sequence of clearing in the study area. The historical data indicate that annual clearing rates have varied substantially in the study area and selective tree removal (ringbarking and thinning) has been common. These findings make it unlikely that a simple simulation approach would replicate the spatial and temporal sequence of woodland loss. Our regression results show that clearing patterns can be related to environmental variables, particularly annual rainfall and estimated pre‐European vegetation type, but that patterns are dominated by contagion. 相似文献
25.
AMANDA C. HELDERMAN MAARTEN VAN HAM CLARA H. MULDER 《Tijdschrift voor economische en sociale geografie = Journal of economic and social geography = Revue de géographie économique et humaine = Zeitschrift für ?konomische und soziale Geographie = Revista de geografía económica y social》2006,97(2):111-125
It is well known that home ownership has an impeding effect on migration. However, the strong increase in home ownership in the Netherlands since the Second World War has not led to a decrease in migration. In this paper three factors are identified which may counterbalance the expected negative effect of increasing home ownership on migration. First, the composition of the population of homeowners has changed towards younger, more mobile households. Second, home ownership has become more common, possibly leading to greater dynamics within the owner‐occupied segment of the housing market. And third, macro factors such as economic growth may have led to more migration. Using the Housing Demand Surveys and logistic regression analysis, we investigated to what extent the effect of home ownership on migration changed in the Netherlands during the 1980s and 1990s. We find – contrary to what we expected – that during the research period the negative effect of home ownership on migration seems to have strengthened somewhat. Within the research period, however, this negative effect was compensated by a general rise in migration for both owning and renting households, possibly attributable to macro factors affecting migration, such as economic growth and changes in the housing market. 相似文献
26.
JUAN‐ANTONIO M
DENES JULIN L
PEZ‐COLS 《Tijdschrift voor economische en sociale geografie = Journal of economic and social geography = Revue de géographie économique et humaine = Zeitschrift für ?konomische und soziale Geographie = Revista de geografía económica y social》2007,98(3):325-335
The aim of this paper is to connect two processes that have been analysed independently to date and that have characterised the housing experience of the Spanish population. On the one hand, the consequences induced by the high density of Spanish urban spaces on other spatial spheres of people's lives and on the other hand, the traditional presence and the recent expansion of second home possession. In this context, we will demonstrate that, in Spain, a strong statistical relationship has been established between the location of main dwellings in a very dense urban context and a greater probability of having second homes. This relationship is better known in the scientific literature as the ‘compensation hypothesis’. 相似文献
27.
JOSEPH MENSAH 《The Canadian geographer》2008,52(3):309-330
Thanks to pioneering work within anthropology, students of international migration acknowledge that most immigrants do not sever their ties with the homeland, but rather maintain them through a variety of cross‐border relationships. While scholarly work has proliferated, since the early 1990s, over the transnational economic and political activities of immigrants, to date, only few analysts have examined the religious practices with which immigrants sustain memberships in multiple locations. In addition, most available studies on transnational migration has dwelled on qualitative methods, such as participant observation, focus groups discussions and in‐depth interviews with a handful of informants, with little or no inclination towards the quantitative measurement of key variables implicated in the process. The prevalence of ethnographic methods in this area of research has, quite understandably, engendered charges of exaggeration, given the tendency of such techniques ‘to sample on the dependent variable’, to borrow the phrase of Alejandro Portes. Using data collected from a survey among Ghanaian immigrant congregations in Toronto, this study seeks to statistically predict the propensity to engage in transnational religious practices by way of a binary logistic regression analysis. In addition, the study examines how the transnational religious activities of the sampled immigrants relate to, overlap with, and differ from other kinds of transnational practices they pursue. 相似文献
28.
José Gómez‐Zotano Jorge Alcántara‐Manzanares Emilio Martínez‐Ibarra José Antonio Olmedo‐Cobo 《Geographical Research》2016,54(4):461-470
This paper proposes an empirical climate classification method based on the application of multivariate statistics. In this method, the technique of supervised and unsupervised image classification is used to classify the data and define climatic units. envi software is used to perform the image classification, specifically, the Iterative Self‐Organizing Data Analysis Technique algorithm. Supervised classification is also applied based on reference variables, fundamental parameters and a classifier. The obtained results display greater objectivity, reliability, operability, accessibility and reproducibility than previous climate classifications devised for the region of Andalusia (Spain), taking into account that these previous classifications were not based on quantitative criteria. 相似文献
29.
The accumulated published database of stable lead isotope analyses of ore and slag specimens taken from Anatolian mining sites that parallel the Black Sea coast has been augmented with 22 additional analyses of such specimens carried out at the National Institute of Standards and Technology. Multivariate statistical analysis has been used to divide this composite database into five separate ore source groups. Evidence that most of these ore sources were exploited for the production of metal artefacts during the Bronze Age and Phrygian Period has been obtained by statistically comparing to them the isotope ratios of 184 analysed artefacts from nine archaeological sites situated within a few hundred kilometres of these mining sites. Also, Appendix B contains 36 new isotope analyses of ore specimens from Central Taurus mining sites that are compatible with and augment the four Central Taurus Ore Source Groups defined in Yener et al. (1991). 相似文献
30.
本文以华盛顿-巴尔的摩地区200年都市化发展史为例,通过Mapinf07．0得到两城市内、外接圆半径值。以Logistic模型为基础计算出其半径增长速率并进行对比分析。研究表明,巴尔的摩和华盛顿城市化区的扩展表现为核心与廊道的共同增长,但二者的增长速率不具有同步增长过程;1962年前华盛顿城市化区的空间形态要优于巴尔的摩,随后则相反。传统的双核廊道结构空间增长研究多以整体为对泉研究其增长过程,本文的创新特色在于通过对比分析两个城市内、外接圆半径的变化,来揭示双核廊道结构空间增长的特殊规律。 相似文献