Although ghetto fiction is concerned with the geographical peripheries of white metropolis, its long-term strategy is to effect a radical restructuring of cityscape. This is not to state a criticism of neocolonial val...Although ghetto fiction is concerned with the geographical peripheries of white metropolis, its long-term strategy is to effect a radical restructuring of cityscape. This is not to state a criticism of neocolonial values upon which the city is built in opposition to the ghetto but rather of demonstrating the extent to which the white city and the ghetto are already deeply implicated within each other. In a ghetto novel, the white city is the subtext that we must recover, because history of ghetto formation itself is the subject of its discourse. Revaluation of the ghetto prepares us for later attempts to revive an urban and "ghettocentric" American identity. In contrast to some ghetto fiction where the ghetto is denounced as a place adverse to emancipatory "progress", Nicholasa Mohr's literary ghetto in Nilda (I 986) is not a narrative reinforcing the stereotypical representations of how racioethnic urban life and violent crime define each other. It is not, in other words, a location of unproblematic inherited identities but a place where orientations and identifications are negotiated.展开更多
Five factors expressing greenbelt quality and one factor expressing quantity were adopted for evaluation of the residential greenbelt, and the AHP (Analytical Hierarchy Process) method was used to determine the valu...Five factors expressing greenbelt quality and one factor expressing quantity were adopted for evaluation of the residential greenbelt, and the AHP (Analytical Hierarchy Process) method was used to determine the value of factors. Thirty residential areas were selected as the samples. Two principal components were extracted and their expression was constructed by method of factor anlysis, therefore, quality evaluation of residential greenbelt was obtained. The accuracy of the function and implement quality classification toward the residential greenbelts in Xinxiang City were validated by clustering analysis method. The results showed that the greenbelt quality of fourteen residential areas was higher than the average level, of which eleven were newly-built residential areas. The 30 residential areas were classified into three types according to their greenbelt features and their formation by clustering analysis method. Finally rational proposal basing on aforesaid evaluating results was proposed for construction and renewal of residential greenbelt, upon which directive basis was provided for construction and renewal of residential greenbelt.展开更多
The paper considers developmental problems of the rural settlements in Bosnia and Herzegovina, which are results of long-term disparity in the regional development in the period 1991-2012. In this paper it is consider...The paper considers developmental problems of the rural settlements in Bosnia and Herzegovina, which are results of long-term disparity in the regional development in the period 1991-2012. In this paper it is considered the recent migration from rural to urban areas and the depopulation of the rural areas. The result of these trends reflects the development of the new infrastructure and tertiary activities. In these investigations, statistical data processed and geovisualised in GIS were used. The obtained data indicate extremely unequable regional arrangement of the population in the rural areas and socio-economic development.展开更多
The increasing amounts of artificial marine substrates, in many parts of the world have been proposed as a potential driver of Aurelia spp. blooms, on account of providing extra habitats for the settlement and the pro...The increasing amounts of artificial marine substrates, in many parts of the world have been proposed as a potential driver of Aurelia spp. blooms, on account of providing extra habitats for the settlement and the proliferation of the benthic stage(polyps). Previous experiments have mainly focused on the substrate choices of Aurelia spp. planulae. However, substrate preferences for the proliferation and immigration of polyps have not been reported. We monitored the propagation and immigration of Aurelia aurita(s. l.) polyps on two natural and nine artificial substrates at constant temperature(20±0.5°C) and salinity(30±0.5) in beakers and a glass aquarium in the laboratory, respectively. The results showed that, among artificial substrates, the highest number for polyp proliferation and immigration was found on nets, rigid polyvinyl chloride plates(RPVC), and wood. The lowest density of polyps was present on iron plates. Among natural substrates, the asexual reproduction rate of polyps on Patinopecten yessoensis(Jay, 1857) shells was significantly higher than Azumapecten farreri(Jones & Preston, 1904). On the account of the distinction in the roughness, chemical properties and biofilms of these material surfaces, bare artificial or natural substrates discriminatively affect the proliferation and the immigration of Aurelia spp. polyps at laboratory. These observations suggest that, even in the natural environment, different materials and texture may influence the composition and the abundance of the fouling communities and the assemblages of polyps and, indirectly, have effects on the amounts of released medusae.展开更多
The location of the homestay agglomeration is closely related to its proximity to the resources environment and the humanities and social environments. From the macroscopic and microscopic aspects, this study uses the...The location of the homestay agglomeration is closely related to its proximity to the resources environment and the humanities and social environments. From the macroscopic and microscopic aspects, this study uses the analytic hierarchy process and the expert consultation method to construct a relatively comprehensive evaluation system including economic and environmental factors, tourism development factors, geographical environment factors, supporting facilities and operating conditions. The evaluation index system consists of 20 evaluation indexes and 35 evaluation factors. Taking the Baileqiao in Hangzhou and Qianjiadian Town in Beijing as examples, the evaluation indexes are verified and applied. The results show that the main factors affecting the location of the homestay agglomeration are the economic and environmental factors. The evaluation index system is composed of a target layer, a comprehensive evaluation layer, a factor evaluation layer and an index layer. The target layer takes reas on able locati on of the homestay agglomerati on as the overall objective;the comprehe nsive evaluati on layer includes economic and environ mental factors (0.4396), tourism development (0.3039), geographic and enviro mental factors (0.1405), and supporting facilities (0.0545). The comprehensive evaluation scores of Baileqiao and Qianjiadia n homestay agglomerations are 92.644 and 88.734, respectively, indicati ng that both are reas on able homestay sites. This study is helpful for promoting the understanding of the homestay agglomeration location selection and the development and construction of homestay agglomeration sites.展开更多
文摘Although ghetto fiction is concerned with the geographical peripheries of white metropolis, its long-term strategy is to effect a radical restructuring of cityscape. This is not to state a criticism of neocolonial values upon which the city is built in opposition to the ghetto but rather of demonstrating the extent to which the white city and the ghetto are already deeply implicated within each other. In a ghetto novel, the white city is the subtext that we must recover, because history of ghetto formation itself is the subject of its discourse. Revaluation of the ghetto prepares us for later attempts to revive an urban and "ghettocentric" American identity. In contrast to some ghetto fiction where the ghetto is denounced as a place adverse to emancipatory "progress", Nicholasa Mohr's literary ghetto in Nilda (I 986) is not a narrative reinforcing the stereotypical representations of how racioethnic urban life and violent crime define each other. It is not, in other words, a location of unproblematic inherited identities but a place where orientations and identifications are negotiated.
基金supported by the Science and Technology Project of Henan Provincial Science and Technology Department (No.0424490012 )Major Program of Henan Institute of Science and Technology (No.040132)
文摘Five factors expressing greenbelt quality and one factor expressing quantity were adopted for evaluation of the residential greenbelt, and the AHP (Analytical Hierarchy Process) method was used to determine the value of factors. Thirty residential areas were selected as the samples. Two principal components were extracted and their expression was constructed by method of factor anlysis, therefore, quality evaluation of residential greenbelt was obtained. The accuracy of the function and implement quality classification toward the residential greenbelts in Xinxiang City were validated by clustering analysis method. The results showed that the greenbelt quality of fourteen residential areas was higher than the average level, of which eleven were newly-built residential areas. The 30 residential areas were classified into three types according to their greenbelt features and their formation by clustering analysis method. Finally rational proposal basing on aforesaid evaluating results was proposed for construction and renewal of residential greenbelt, upon which directive basis was provided for construction and renewal of residential greenbelt.
文摘The paper considers developmental problems of the rural settlements in Bosnia and Herzegovina, which are results of long-term disparity in the regional development in the period 1991-2012. In this paper it is considered the recent migration from rural to urban areas and the depopulation of the rural areas. The result of these trends reflects the development of the new infrastructure and tertiary activities. In these investigations, statistical data processed and geovisualised in GIS were used. The obtained data indicate extremely unequable regional arrangement of the population in the rural areas and socio-economic development.
基金Supported by the State Key Program of National Natural Science of China(No.41230963)the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDA11020305)+1 种基金the Shandong Joint Fund for Marine Ecology and Environmental Sciences(No.U1406403)the National Natural Science Foundation of China(No.41506144)
文摘The increasing amounts of artificial marine substrates, in many parts of the world have been proposed as a potential driver of Aurelia spp. blooms, on account of providing extra habitats for the settlement and the proliferation of the benthic stage(polyps). Previous experiments have mainly focused on the substrate choices of Aurelia spp. planulae. However, substrate preferences for the proliferation and immigration of polyps have not been reported. We monitored the propagation and immigration of Aurelia aurita(s. l.) polyps on two natural and nine artificial substrates at constant temperature(20±0.5°C) and salinity(30±0.5) in beakers and a glass aquarium in the laboratory, respectively. The results showed that, among artificial substrates, the highest number for polyp proliferation and immigration was found on nets, rigid polyvinyl chloride plates(RPVC), and wood. The lowest density of polyps was present on iron plates. Among natural substrates, the asexual reproduction rate of polyps on Patinopecten yessoensis(Jay, 1857) shells was significantly higher than Azumapecten farreri(Jones & Preston, 1904). On the account of the distinction in the roughness, chemical properties and biofilms of these material surfaces, bare artificial or natural substrates discriminatively affect the proliferation and the immigration of Aurelia spp. polyps at laboratory. These observations suggest that, even in the natural environment, different materials and texture may influence the composition and the abundance of the fouling communities and the assemblages of polyps and, indirectly, have effects on the amounts of released medusae.
基金China National Tourism Administration’s 10000 Travel Talent Program(WMYC20171039)National Natural Science Foundation of China(41801139,41731286)
文摘The location of the homestay agglomeration is closely related to its proximity to the resources environment and the humanities and social environments. From the macroscopic and microscopic aspects, this study uses the analytic hierarchy process and the expert consultation method to construct a relatively comprehensive evaluation system including economic and environmental factors, tourism development factors, geographical environment factors, supporting facilities and operating conditions. The evaluation index system consists of 20 evaluation indexes and 35 evaluation factors. Taking the Baileqiao in Hangzhou and Qianjiadian Town in Beijing as examples, the evaluation indexes are verified and applied. The results show that the main factors affecting the location of the homestay agglomeration are the economic and environmental factors. The evaluation index system is composed of a target layer, a comprehensive evaluation layer, a factor evaluation layer and an index layer. The target layer takes reas on able locati on of the homestay agglomerati on as the overall objective;the comprehe nsive evaluati on layer includes economic and environ mental factors (0.4396), tourism development (0.3039), geographic and enviro mental factors (0.1405), and supporting facilities (0.0545). The comprehensive evaluation scores of Baileqiao and Qianjiadia n homestay agglomerations are 92.644 and 88.734, respectively, indicati ng that both are reas on able homestay sites. This study is helpful for promoting the understanding of the homestay agglomeration location selection and the development and construction of homestay agglomeration sites.