نتایج جستجو برای: spatial segregation

تعداد نتایج: 387556  

Journal: :Journal of the Optical Society of America. A, Optics, image science, and vision 2012
Bonnie Cooper Hao Sun Barry B Lee

Gratings that contain luminance and chromatic components of different spatial frequencies were used to study the segregation of signals in luminance and chromatic pathways. Psychophysical detection and discrimination thresholds to these compound gratings, with luminance and chromatic components of the one either half or double the spatial frequency of the other, were measured in human observers...

Journal: :iranian journal of public health 0
ss hashemi nazari m mahmoodi ma mansournia k holakouie naieni

background: there is a great amount of literature concerning the effect of racial segregation on health outcomes but few papers have discussed the effect of segregation on the basis of social, demographic and economic characteristics on health. we estimated the independent effect of segregation of determinants of socioeconomic status on infant mortality in iranian population. methods: for measu...

In this study, an Eulerian-Eulerian multi-fluid model (MFM) was used to simulate the segregation pattern of a conical fluidized bed containing ternary mixtures of equidensity TiO2‌ particles. Experimental 'freeze–sieving' method was employed to determine the axial mass fraction profiles of the different-sized particles, and validate the simulation results. The profiles of mass fraction for larg...

2012
Dustin T. Duncan Jared Aldstadt John Whalen Kellee White Marcia C. Castro David R. Williams

BACKGROUND Multiple and varied benefits have been suggested for increased neighborhood walkability. However, spatial inequalities in neighborhood walkability likely exist and may be attributable, in part, to residential segregation. OBJECTIVE Utilizing a spatial demographic perspective, we evaluated potential spatial inequalities in walkable neighborhood amenities across census tracts in Bost...

Journal: :Social Inclusion 2021

A paradigm shift is taking place in spatial segregation research. At the heart of this understanding connectedness different life domains and availability new datasets that allow for more detailed studies on these connections. In thematic issue underpinnings social inequalities we will outline foundations ‘vicious circles segregation’ framework to shed light questions such as: What role residen...

Journal: :Institute for Analytical Sociology dissertation series 2021

Studies on ethnic residential segregation analyze how the inter-neighborhood mobility of individuals shapes their spatial distribution across cities. This literature has shown that ...

2002
CLIFFORD E. KRAFT PATRICK J. SULLIVAN ALEXANDER Y. KARATAYEV LYUBOV E. BURLAKOVA JEFFREY C. NEKOLA LADD E. JOHNSON DIANNA K. PADILLA

Assessing the spatial distribution of organisms across landscapes is a key step toward determining processes that produce observed patterns. The spatial distribution of an invasive aquatic mollusk, the zebra mussel (Dreissena polymorpha), was examined in two lake-rich areas (Belarus and midwestern United States) with contrasting invasion histories. Spatial distribution patterns of invaded lakes...

2017
Jonathan Rokem Laura Vaughan

This paper assesses ways in which urban segregation is shaped and transformed by Jerusalem’s public transport network, enhancing mobility and potential group encounters. We suggest that segregation should be understood as an issue of mobility and co-presence in public space, rather than the static residential-based segregation that continues to be a central focus of debate in urban studies. We ...

2017
Amy L. Bottomley Andrew T. F. Liew Kennardy D. Kusuma Elizabeth Peterson Lisa Seidel Simon J. Foster Elizabeth J. Harry

Productive bacterial cell division and survival of progeny requires tight coordination between chromosome segregation and cell division to ensure equal partitioning of DNA. Unlike rod-shaped bacteria that undergo division in one plane, the coccoid human pathogen Staphylococcus aureus divides in three successive orthogonal planes, which requires a different spatial control compared to rod-shaped...

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