This article is a brief empirical attempt to identify rural areas in the Southeast United States that have consistently attracted older migrants since 1950 and to ascertain the social, demographic, and geographic characteristics of these areas of destination that differentiate them from otherwise (initially) similar areas. These counties are followed over the successive censuses from 1950 through 1990, identifying those that have consistently experienced elderly in-migration at a rate substantially greater than the overall level. These retirement counties are concentrated in Florida, on the fringes of or adjacent to metropolitan areas or in mountain and coastal locations. The article presents regression analysis of geographic, demographic, and economic/structural correlates of migration. This analysis suggests that retirees are attracted to coastal locations whose existing populations have consistently achieved some measure of prosperity and are not dissimilar from the retirees themselves.
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http://dx.doi.org/10.1093/geront/41.2.220 | DOI Listing |
FEBS Open Bio
January 2025
Institute of Neurophysiology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Germany.
Neurotransmitter release is triggered in microseconds by the two C domains of the Ca sensor synaptotagmin-1 and by SNARE complexes, which form four-helix bundles that bridge the vesicle and plasma membranes. The synaptotagmin-1 CB domain binds to the SNARE complex via a 'primary interface', but the mechanism that couples Ca-sensing to membrane fusion is unknown. Widespread models postulate that the synaptotagmin-1 Ca-binding loops accelerate membrane fusion by inducing membrane curvature, perturbing lipid bilayers or helping bridge the membranes, but these models do not seem compatible with SNARE binding through the primary interface, which orients the Ca-binding loops away from the fusion site.
View Article and Find Full Text PDFBioData Min
January 2025
The Department of Computational Biomedicine, Cedars-Sinai Medical Center, Los Angeles, CA, 90069, USA.
Background: With recent advances in single cell technology, high-throughput methods provide unique insight into disease mechanisms and more importantly, cell type origin. Here, we used multi-omics data to understand how genetic variants from genome-wide association studies influence development of disease. We show in principle how to use genetic algorithms with normal, matching pairs of single-nucleus RNA- and ATAC-seq, genome annotations, and protein-protein interaction data to describe the genes and cell types collectively and their contribution to increased risk.
View Article and Find Full Text PDFBMC Public Health
January 2025
Social Environment and Health Program, Institute for Social Research, University of Michigan, 426 Thompson St., Ann Arbor, MI, 48104, USA.
Introduction: Levels of plant-based aeroallergens are rising as growing seasons lengthen and intensify with anthropogenic climate change. Increased exposure to pollens could increase risk for mortality from respiratory causes, particularly among older adults. We determined short-term, lag associations of four species classes of pollen (ragweed, deciduous trees, grass pollen and evergreen trees) with respiratory mortality (all cause, chronic and infectious related) in Michigan, USA.
View Article and Find Full Text PDFJ Gen Intern Med
January 2025
Department of Medicine, Harvard Medical School, Boston, MA, USA.
Background: Accounting for approximately 1 in 4 community-dwelling adults in the United States (US), people with disabilities (PWD) experience significant disparities in health care quality, access, and outcomes. At the same time, US physicians have reported feeling unprepared to care for PWD and have revealed significant negative bias about this population.
Objective: To understand how physicians are trained to care for PWD in US medical schools.
Exp Brain Res
January 2025
Ashton Graybiel Spatial Orientation Laboratory, Brandeis University, MS 033, 415 South Street, Waltham, MA, 02453, USA.
Younger adults (YA) and older adults (OA) used a joystick to stabilize an unstable visual inverted pendulum (VIP) with a fundamental frequency (.27 Hz) of half that of bipedal human sway. Their task was to keep the VIP upright and to avoid ± 60° "fall" boundaries.
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