Results 31 to 40 of about 719,902 (313)

Winter Wheat Green-up Date Variation and its Diverse Response on the Hydrothermal Conditions over the North China Plain, Using MODIS Time-Series Data

open access: yesRemote Sensing, 2019
Vegetation phenology plays a critical role in the dynamic response of terrestrial ecosystems to climate change. However, the relationship between the phenology of winter wheat and hydrothermal factors is inadequate, especially in typical agricultural ...
Linghui Guo   +5 more
doaj   +1 more source

Spatial pattern of ASG-EUPOS sites

open access: yesOpen Geosciences, 2017
The article presents the spatial pattern analysis of the ASG-EUPOS permanent GNSS stations in Poland. Using different methods and tools (nearest neighbour, Riplay’s K-function, morphology of Thiessen polygons) we proved that the station distribution ...
Calka Beata   +2 more
doaj   +1 more source

Monitoring wetland plant diversity from space: Progress and perspective

open access: yesInternational Journal of Applied Earth Observations and Geoinformation
Wetlands are the one of ecosystems with the highest biodiversity, ecological service functions and carbon storage. Affected by the synergistic impacts of human activities and climate change, the global wetland area has decreased by 35 % since 1970, with ...
Weiwei Sun   +10 more
doaj   +1 more source

Are There Sufficient Landsat Observations for Retrospective and Continuous Monitoring of Land Cover Changes in China?

open access: yesRemote Sensing, 2019
Unprecedented human-induced land cover changes happened in China after the Reform and Opening-up in 1978, matching with the era of Landsat satellite series.
Yan Zhou   +7 more
doaj   +1 more source

Autocorrelation of Spatial Based Dengue Hemorrhagic Fever Cases in Air Putih Area, Samarinda City

open access: yesJurnal Kesehatan Lingkungan, 2020
Introduction: Dengue Hemorrhagic Fever (DHF) is the disease that spread quickly in tropical and subtropical regions. DHF can spread quickly because the dengue virus is transmitted through the Aedes aegypti and Aedes albopictus into the human body. One of
Syamsir Syamsir   +1 more
doaj   +1 more source

Comparing spatial patterns of 11 common cancers in Mainland China

open access: yesBMC Public Health, 2022
Background A stronger spatial clustering of cancer burden indicates stronger environmental and human behavioral effects. However, which common cancers in China have stronger spatial clustering and knowledge gaps regarding the environmental and human ...
Lin Zhang   +4 more
doaj   +1 more source

Modelling Spatial Patterns

open access: yesJournal of the Royal Statistical Society Series B: Statistical Methodology, 1977
Summary Spatial point processes may be analysed at two levels. Quadrat and distance methods were designed for the sampling of a population in the field. In this paper we consider those situations in which a map of a spatial pattern has been produced at some cost and we wish to extract the maximum possible information.
openaire   +2 more sources

Efficacy and Safety Analysis of Roxarestat in Regulating Renal Anemia in Patients on Maintenance Hemodialysis

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Objective To compare the efficacy and safety of roxarestat versus recombinant human erythropoietin (rhEPO) in the management of renal anemia in patients undergoing maintenance hemodialysis. Methods This was a prospective, open‐label, randomized controlled trial.
Lingling Chen, Junjie Zhu, Qiaonan Ge
wiley   +1 more source

The Spatial Pattern of Urban Residential Blight [PDF]

open access: yes, 1971
This thesis seeks to describe and explain the spatial pattern of urban residential blight. The empirical analysis is limited to one study area; that of the Chicago metropolitan area. The data are U.S.
Mercer, John
core  

The spatial diffusion of fertility decline in Egypt (1950–2006)

open access: yesGenus, 2021
While the Egyptian fertility transition has been widely addressed in the literature, few researches have studied the spatial dimension of fertility.
Yoann Doignon   +2 more
doaj   +1 more source

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