نتایج جستجو برای: deserts
تعداد نتایج: 2047 فیلتر نتایج به سال:
The growing obesity epidemic in the United States has served as the catalyst for promoting studies examining linkages between modifiable features of neighborhood food environments and the risk of being overweight and/or obese. Past studies have used several data sources to measure various dimensions of local food environments (e.g., number of fast food restaurants, number of grocery stores), in...
BACKGROUND Food deserts, areas that lack full-service grocery stores, may contribute to rising rates of obesity and chronic diseases among low-income and racial/ethnic minority residents. Our corner store project, part of the Centers for Disease Control and Prevention's Communities Putting Prevention to Work initiative, aimed to increase availability of healthful foods in food deserts in Nashvi...
Gene clusters (red) and deserts (green) group together in characteristic patterns. Dendrites with excess nectin 1 aberrantly touch each other (arrowheads). G ene-poor chromosomal regions are more often found in the nuclear periphery, and gene-rich regions are more often found in the nuclear interior. But Shopland et al. (page 27) are the fi rst to analyze how multiple gene-poor and gene-rich re...
As invasive grasses and fire increase in frequency and extent in North American deserts, they have the potential to affect animal communities through bottom-up forces. We experimentally tested the effects of fire on rodent communities of the Great Basin and Mojave Deserts. Fire decreased the abundance, richness, and diversity of rodents in the Great Basin after fire. In the Mojave, abundance wa...
Global patterns in diversity were estimated for cyanobacteria-dominated hypolithic communities that colonize ventral surfaces of quartz stones and are common in desert environments. A total of 64 hypolithic communities were recovered from deserts on every continent plus a tropical moisture sufficient location. Community diversity was estimated using a combined t-RFLP fingerprinting and high thr...
The purpose of this study is to examine the relationship between dollar store expansion and food access. We begin by documenting growth stores over time comparing areas with without poor Using a time-varying measure accessibility, we identify persistent access challenges, where supermarket large grocery have been absent for entire period (2000–2017), track into these areas. use combination geoc...
It will be a surprise to many biologists that snails are found in large numbers on the dry, barren surfaces of certain hot deserts. The present study is concerned with one such snail, Sphincterochila boissieri, which occurs in the deserts of the Near East. Live specimens of this snail, withdrawn in the shell and dormant, can be found on the desert surface in mid-summer, fully exposed to sun and...
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