Results 31 to 40 of about 1,314,404 (270)

A Low Frequency Survey of the Galactic Plane Near l=11 degrees: Discovery of Three New Supernova Remnants [PDF]

open access: yes, 2003
We have imaged a 1 deg^2 field centered on the known Galactic supernova remnant (SNR) G11.2-0.3 at 74, 330, and 1465 MHz with the Very Large Array radio telescope (VLA) and 235 MHz with the Giant Metrewave Radio Telescope (GMRT).
Anantharamaiah K. R.   +19 more
core   +1 more source

Data analysis techniques: a tool for cumulative exposure assessment. [PDF]

open access: yes, 2014
International audienceEveryone is subject to environmental exposures from various sources, with negative health impacts (air, water and soil contamination, noise, etc.or with positive effects (e.g. green space).
Deguen, Séverine   +5 more
core   +4 more sources

Exploring the Relationship between Urban Park Greenery at Different Levels and Physical Activity: A Study Using the Hierarchical Linear Model

open access: yesLand, 2023
Urban parks play a pivotal role in shaping physical activity (PA), yet our comprehension of the specific influence of park greenery remains limited. In this study, we focused on three Shanghai urban parks, conducting a comprehensive year-long on-site ...
Zheng Tao   +4 more
doaj   +1 more source

Mixed-Morphology Supernova Remnants in X-rays: Isothermal Plasma in HB21 and Probable Oxygen-Rich Ejecta in CTB 1 [PDF]

open access: yes, 2010
(Abridged) We present an analysis of X-ray observations made of the Galactic supernova remnants (SNRs) HB21 (G89.0+4.7) and CTB 1 (G116.9+0.2), two well-known mixed-morphology (MM) SNRs.
Angelini   +58 more
core   +2 more sources

Urban-rural air humidity differences in Szeged, Hungary [PDF]

open access: yes, 1999
Measurements of vapour pressure, taken four times a day over a 3-year period, were used to investigate the urban influence on diurnal and annual patterns of vapour pressure differences. The examined settlement is a medium-sized city without significant
Acs   +35 more
core   +1 more source

No Consistent Evidence for Advancing or Delaying Trends in Spring Phenology on the Tibetan Plateau [PDF]

open access: yes, 2017
Vegetation phenology is a sensitive indicator of climate change and has significant effects on the exchange of carbon, water, and energy between the terrestrial biosphere and the atmosphere.
Badeck   +69 more
core   +3 more sources

Using deep learning to examine street view green and blue spaces and their associations with geriatric depression in Beijing, China

open access: yesEnvironment International, 2019
Background: Residential green and blue spaces may be therapeutic for the mental health. However, solid evidence on the linkage between exposure to green and blue spaces and mental health among the elderly in non-Western countries is scarce and limited to
Marco Helbich   +5 more
doaj   +1 more source

Testing Low Complexity Affine-Invariant Properties [PDF]

open access: yes, 2012
Invariance with respect to linear or affine transformations of the domain is arguably the most common symmetry exhibited by natural algebraic properties.
Bhattacharyya, Arnab   +2 more
core   +2 more sources

Identification of Inequities in Green Visibility and Ways to Increase Greenery in Neighborhoods: A Case Study of Wuhan, China

open access: yesApplied Sciences
The rapid increase in urban population density driven by urban development has intensified inequity in urban green space distribution. Identifying the causes of changes in green equity and developing strategies to improve urban greening are crucial for ...
Xiaohua Guo   +3 more
doaj   +1 more source

Effect of Urban Green Space in the Hilly Environment on Physical Activity and Health Outcomes: Mediation Analysis on Multiple Greenery Measures

open access: yesLand, 2022
Background: Green spaces reduce the risk of multiple adverse health outcomes by encouraging physical activity. This study examined correlations between urban green space and residents’ health outcomes in hilly neighborhoods: if they are mediated by ...
Peijin Sun, Yan Song, Wei Lu
doaj   +1 more source

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