Spatial Distribution

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Yukiko Higa - One of the best experts on this subject based on the ideXlab platform.

  • Dengue Vectors and their Spatial Distribution
    Tropical Medicine and Health, 2020
    Co-Authors: Yukiko Higa
    Abstract:

    Japanese Society of Tropical MedicinAbstract: The Distribution of dengue vectores, Ae. aegypti and Ae. albopictus, is affected by climatic factors. In addition, since their life cycles are well adapted to the human environment, environmental changes resulting from human activity such as urbanization exert a great impact on vector Distribution. The different responses of Ae. aegypti and Ae albopictus to various environments result in a difference in Spatial Distribution along north-south and urban-rural gradients, and between the indoors and outdoors. In the north-south gradient, climate associated with survival is an important factor in Spatial Distribution. In the urban-rural gradient, different Distribution reflects a difference in adult niches and is modified by geographic and human factors. The direct response of the two species to the environment around houses is related to different Spatial Distribution indoors and outdoors. Dengue viruses circulate mainly between human and vector mosquitoes, and the vector presence is a limiting factor of transmission. Therefore, Spatial Distribution of dengue vectors is a significant concern in the epidemiology of the disease. Current technologies such as GIS, satellite imagery and statistical models allow researchers to predict the Spatial Distribution of vectors in the changing environment. Although it is difficult to confirm the actual effect of environmental and climate changes on vector abundance and vector-borne diseases, environmental changes caused by humans and human behavioral changes due to climate change can be expected to exert an impact on dengue vectors. Longitudinal monitoring of dengue vectors and viruses is therefore necessary

  • Dengue Vectors and their Spatial Distribution
    Tropical Medicine and Health, 2011
    Co-Authors: Yukiko Higa
    Abstract:

    The Distribution of dengue vectors, Ae. aegypti and Ae. albopictus, is affected by climatic factors. In addition, since their life cycles are well adapted to the human environment, environmental changes resulting from human activity such as urbanization exert a great impact on vector Distribution. The different responses of Ae. aegypti and Ae albopictus to various environments result in a difference in Spatial Distribution along north-south and urban-rural gradients, and between the indoors and outdoors. In the north-south gradient, climate associated with survival is an important factor in Spatial Distribution. In the urban-rural gradient, different Distribution reflects a difference in adult niches and is modified by geographic and human factors. The direct response of the two species to the environment around houses is related to different Spatial Distribution indoors and outdoors. Dengue viruses circulate mainly between human and vector mosquitoes, and the vector presence is a limiting factor of transmission. Therefore, Spatial Distribution of dengue vectors is a significant concern in the epidemiology of the disease. Current technologies such as GIS, satellite imagery and statistical models allow researchers to predict the Spatial Distribution of vectors in the changing environment. Although it is difficult to confirm the actual effect of environ- mental and climate changes on vector abundance and vector-borne diseases, environmental changes caused by humans and human behavioral changes due to climate change can be expected to exert an impact on dengue vectors.

  • Dengue Vectors and their Spatial Distribution.
    Tropical medicine and health, 2011
    Co-Authors: Yukiko Higa
    Abstract:

    The Distribution of dengue vectors, Ae. aegypti and Ae. albopictus, is affected by climatic factors. In addition, since their life cycles are well adapted to the human environment, environmental changes resulting from human activity such as urbanization exert a great impact on vector Distribution. The different responses of Ae. aegypti and Ae albopictus to various environments result in a difference in Spatial Distribution along north-south and urban-rural gradients, and between the indoors and outdoors. In the north-south gradient, climate associated with survival is an important factor in Spatial Distribution. In the urban-rural gradient, different Distribution reflects a difference in adult niches and is modified by geographic and human factors. The direct response of the two species to the environment around houses is related to different Spatial Distribution indoors and outdoors. Dengue viruses circulate mainly between human and vector mosquitoes, and the vector presence is a limiting factor of transmission. Therefore, Spatial Distribution of dengue vectors is a significant concern in the epidemiology of the disease.Current technologies such as GIS, satellite imagery and statistical models allow researchers to predict the Spatial Distribution of vectors in the changing environment. Although it is difficult to confirm the actual effect of environmental and climate changes on vector abundance and vector-borne diseases, environmental changes caused by humans and human behavioral changes due to climate change can be expected to exert an impact on dengue vectors. Longitudinal monitoring of dengue vectors and viruses is therefore necessary.

E. B. Fish - One of the best experts on this subject based on the ideXlab platform.

  • Spatial Distribution of PLAYA BASINS on the
    2020
    Co-Authors: J. P. Quillin, R. E. Zartman, E. B. Fish
    Abstract:

    There are approximately 20,500 playa basins on the Texas High Plains. The position, Distribution, and alignment of playa basins can be observed on maps or aerial photographs. Latitude and longitude coordinates, in degrees, for the center of mass of each playa were the inputs used to quantify the Spatial Distribution. Pointto-point and origin-to-point functions were analyzed to quantify the Spatial Distribution of playa basins. Counties north of the Canadian river and along the Caprock escarpment have clustered playa basin Distributions. Counties southwest of this region have high playa density and regular Spatial Distribution. The counties in the far southwestern portion of the Texas High Plains have low playa density and clustered Spatial Distribution patterns.

  • Spatial Distribution of Playa Basins on the Texas High Plains
    Texas Journal of Agriculture and Natural Resources, 2016
    Co-Authors: J. P. Quillin, R. E. Zartman, E. B. Fish
    Abstract:

    There are approximately 20,500 playa basins on the Texas High Plains.  The position, Distribution, and alignment of playa basins can be observed on maps or aerial photographs.  Latitude and longitude coordinates, in degrees, for the center of mass of each playa were the inputs used to quantify the Spatial Distribution.  Point-to-point and origin-to-point functions were analyzed to quantify the Spatial Distribution of playa basins.  Counties north of the Canadian river and along the Caprock escarpment have clustered playa basin Distributions. Counties southwest of this region have high playa density and regular Spatial Distribution.  The counties in the far southwestern portion of the Texas High Plains have low playa density and clustered Spatial Distribution patterns.

J. P. Quillin - One of the best experts on this subject based on the ideXlab platform.

  • Spatial Distribution of PLAYA BASINS on the
    2020
    Co-Authors: J. P. Quillin, R. E. Zartman, E. B. Fish
    Abstract:

    There are approximately 20,500 playa basins on the Texas High Plains. The position, Distribution, and alignment of playa basins can be observed on maps or aerial photographs. Latitude and longitude coordinates, in degrees, for the center of mass of each playa were the inputs used to quantify the Spatial Distribution. Pointto-point and origin-to-point functions were analyzed to quantify the Spatial Distribution of playa basins. Counties north of the Canadian river and along the Caprock escarpment have clustered playa basin Distributions. Counties southwest of this region have high playa density and regular Spatial Distribution. The counties in the far southwestern portion of the Texas High Plains have low playa density and clustered Spatial Distribution patterns.

  • Spatial Distribution of Playa Basins on the Texas High Plains
    Texas Journal of Agriculture and Natural Resources, 2016
    Co-Authors: J. P. Quillin, R. E. Zartman, E. B. Fish
    Abstract:

    There are approximately 20,500 playa basins on the Texas High Plains.  The position, Distribution, and alignment of playa basins can be observed on maps or aerial photographs.  Latitude and longitude coordinates, in degrees, for the center of mass of each playa were the inputs used to quantify the Spatial Distribution.  Point-to-point and origin-to-point functions were analyzed to quantify the Spatial Distribution of playa basins.  Counties north of the Canadian river and along the Caprock escarpment have clustered playa basin Distributions. Counties southwest of this region have high playa density and regular Spatial Distribution.  The counties in the far southwestern portion of the Texas High Plains have low playa density and clustered Spatial Distribution patterns.

Chen Shao-fang - One of the best experts on this subject based on the ideXlab platform.

  • The Color Spatial Distribution for Image Retrieval
    Modern Computer, 2020
    Co-Authors: Chen Shao-fang
    Abstract:

    This paper presents a new concept,color Spatial Distribution density,gives its computing method and proves the method's rationality and validity.The color Spatial Distribution density can provide the color Spatial Distribution information for CBIR(Content Based Image Retrieval).The results of the test in the paper proves that we can improve the efficiency and the accuracy with using the color Spatial Distribution and histogram for image retrieval.

R. E. Zartman - One of the best experts on this subject based on the ideXlab platform.

  • Spatial Distribution of PLAYA BASINS on the
    2020
    Co-Authors: J. P. Quillin, R. E. Zartman, E. B. Fish
    Abstract:

    There are approximately 20,500 playa basins on the Texas High Plains. The position, Distribution, and alignment of playa basins can be observed on maps or aerial photographs. Latitude and longitude coordinates, in degrees, for the center of mass of each playa were the inputs used to quantify the Spatial Distribution. Pointto-point and origin-to-point functions were analyzed to quantify the Spatial Distribution of playa basins. Counties north of the Canadian river and along the Caprock escarpment have clustered playa basin Distributions. Counties southwest of this region have high playa density and regular Spatial Distribution. The counties in the far southwestern portion of the Texas High Plains have low playa density and clustered Spatial Distribution patterns.

  • Spatial Distribution of Playa Basins on the Texas High Plains
    Texas Journal of Agriculture and Natural Resources, 2016
    Co-Authors: J. P. Quillin, R. E. Zartman, E. B. Fish
    Abstract:

    There are approximately 20,500 playa basins on the Texas High Plains.  The position, Distribution, and alignment of playa basins can be observed on maps or aerial photographs.  Latitude and longitude coordinates, in degrees, for the center of mass of each playa were the inputs used to quantify the Spatial Distribution.  Point-to-point and origin-to-point functions were analyzed to quantify the Spatial Distribution of playa basins.  Counties north of the Canadian river and along the Caprock escarpment have clustered playa basin Distributions. Counties southwest of this region have high playa density and regular Spatial Distribution.  The counties in the far southwestern portion of the Texas High Plains have low playa density and clustered Spatial Distribution patterns.