Results 31 to 40 of about 23,287,430 (320)

Spatial–Temporal Evolution Characteristics of Landscape Ecological Risk in the Agro-Pastoral Region in Western China: A Case Study of Ningxia Hui Autonomous Region

open access: yesLand, 2022
Landscape ecological risk assessment can reflect the impact of landscape pattern on ecological processes and functions, and has become an important method for predicting and measuring the quality and dynamic evolution of the ecological environment ...
Hao Liu   +3 more
doaj   +1 more source

Analysis of Hotspots in Subsurface Drip Irrigation Research Using CiteSpace

open access: yesAgriculture, 2023
To investigate the research hotspots and development trends of subsurface drip irrigation (SDI) over the past 20 years, this study analyzed relevant literature from the Web of Science Core Collection spanning from 2002 to 2022.
Yatao Xiao   +4 more
doaj   +1 more source

A micro-epidemiological analysis of febrile malaria in Coastal Kenya showing hotspots within hotspots [PDF]

open access: yeseLife, 2014
Malaria transmission is spatially heterogeneous. This reduces the efficacy of control strategies, but focusing control strategies on clusters or ‘hotspots’ of transmission may be highly effective. Among 1500 homesteads in coastal Kenya we calculated (a) the fraction of febrile children with positive malaria smears per homestead, and (b) the mean age of
Bejon, P.   +15 more
openaire   +7 more sources

The Far-Ultraviolet Spectrum and Short Timescale Variability of AM Herculis from Observations with the Hopkins Ultraviolet Telescope [PDF]

open access: yes, 1998
Using the Hopkins Ultraviolet Telescope (HUT), we have obtained 850-1850 angstrom spectra of the magnetic cataclysmic variable star AM Her in the high state.
Beardmore A. P.   +16 more
core   +3 more sources

Investigation of spatial-physical development model based on spatial analysis, GIS and Holdern entropy model [PDF]

open access: yesInternational Journal of Human Capital in Urban Management, 2022
BACKGROUND AND OBJECTIVES: Irregular and unplanned development of cities has led to some difficulties with the natural environment and human well-being reflected in the inappropriate spatial structure.
M. Jahanbani, E. Lashkari
doaj   +1 more source

Vision-based analysis of pedestrian traffic data [PDF]

open access: yes, 2008
Reducing traffic congestion has become a major issue within urban environments. Traditional approaches, such as increasing road sizes, may prove impossible in certain scenarios, such as city centres, or ineffectual if current predictions of large growth ...
Kelly, Philip, O'Connor, Noel E.
core   +2 more sources

Systematic characterization of pan‐cancer mutation clusters

open access: yesMolecular Systems Biology, 2018
Cancer genome sequencing has shown that driver genes can often be distinguished not only by the elevated mutation frequency but also by specific nucleotide positions that accumulate changes at a high rate.
Marija Buljan   +3 more
doaj   +1 more source

The effect of fear of crime on public space use: The case of Rüsumat [PDF]

open access: yesSpatium
The growing populations of today’s cities, as well as the increase in alienation amongst their inhabitants, raises the perception of crime. People’s desire for communal areas such as public spaces is reduced when they feel unsafe in urban places.
Alkan İsra Nur, Kutay Karaçor Elif
doaj   +1 more source

The Identification of Hotspots in the Bioenergy Production Chain

open access: yesEnergies, 2020
Increasing interest in bioenergy production in the context of the transition towards a circular economy and the promotion of renewable energy has produced demands for optimization of the value chain of energy production to improve the environmental ...
Magdalena Muradin, Joanna Kulczycka
doaj   +1 more source

Synthetic Observations of Simulated Radio Galaxies I: Radio and X-ray Analysis [PDF]

open access: yes, 2003
We present an extensive synthetic observational analysis of numerically- simulated radio galaxies designed to explore the effectiveness of conventional observational analyses at recovering physical source properties.
Brunetti G.   +6 more
core   +2 more sources

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