نتایج جستجو برای: spatial estimates

تعداد نتایج: 527599  

2011
Thomas J. Rodhouse Kathryn M. Irvine Kerri T. Vierling Lee A. Vierling

Monitoring programs that evaluate restoration and inform adaptive management are important for addressing environmental degradation. These efforts may be well served by spatially explicit hierarchical approaches to modeling because of unavoidable spatial structure inherited from past land use patterns and other factors. We developed bayesian hierarchical models to estimate trends from annual de...

Journal: :Brain stimulation 2015
Mitesh Patel R Edward Roberts Qadeer Arshad Maroof Ahmed Mohammed U Riyaz Adolfo M Bronstein

Peripheral galvanic vestibular stimulation (GVS) has been shown to temporarily ameliorate left spatial neglect [1]. Specifically, anodal (facilitatory) stimulation over the left mastoid bone coupled with cathodal (inhibitory) over the right mastoid reduces visuospatial‐neglect scores in line cancellation [2] and line bisection tasks [3, 4]. This montage increases activity in the left vestibular...

Journal: :محیط شناسی 0
علیرضا نورپور دانشیار گروه مهندسی محیط زیست، دانشکدۀ محیط زیست، دانشگاه تهران سید محمد علی فیض دانشجوی کارشناسی ارشد مهندسی محیط زیست، دانشکدۀ محیط زیست، دانشگاه تهران

introduction studies about the health effects of long-term average exposure to outdoor air pollution have played an important role in the recent health impact assessments. exposure assessment for epidemiological studies of long-term exposure to ambient air pollution remains a difficult challenge because of substantial small-scale spatial variation. current approaches for assessing intra-urban ai...

2007
Tullio Buccellato

This paper analyses the process of convergence across the regions of Russia using spatial econometrics tools in addition to the traditional β-convergence techniques as derived from the neoclassical theoretical setting. The spatial component appears to be non-negligible and, consequently, conventional convergence estimates suffer a bias due to spatial dependence across observations. Furthermore,...

2014
James P. LeSage

There is near universal agreement that estimates and inferences from spatial regression models are sensitive to particular specifications used for the spatial weight structure in these models. We find little theoretical basis for this commonly held belief, if estimates and inferences are based on the true partial derivatives for a well-specified spatial regression model. We conclude that this m...

2008
Xia Feng Brad R. Humphreys

This paper estimates the intangible benefits of a two sports facilities in Columbus, Ohio on residential property values. We estimate a spatial hedonic model that avoids biased and inconsistent estimates in the presence of uncorrected spatial autocorrelation. The results suggest that the presence of sports facilities in Columbus have a significant positive distance-decaying effect on surroundin...

2002
JONATHAN C. MATTINGLY

We prove spatial analyticity for solutions of the stochastically forced Navier Stokes equation, provided that the forcing is sufficiently smooth spatially. We also give estimates, which extend to the stationary regime, providing strong control of both of the expected rate of dissipation and fluctuations about this mean. Surprisingly, we could not obtain non-random estimates of the exponential d...

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