255 research outputs found
Clinical Service Delivery along the Urban/Rural Continuum
Background: Engagement in the core public health functions and ten essential services remains the standard for measuring local health department (LHD) performance; their role as providers of clinical services remains uncertain, particularly in rural and underserved communities.
Purpose: To examine the role of LHDs as clinical service providers and how this role varies among rural and nonrural communities.
Methods: The 2013 National Association of County and City Health Officials (NACCHO) Profile was used to examine the geographic distribution of clinical service provision among LHDs. LHDs were coded as urban, large rural, or small rural based on Rural/Urban Commuting Area codes. Bivariate analysis for clinical services was conducted by rural/urban status. For each service, the proportions of LHDs that directly performed the service, contracted with other organizations to provide the service, or reported provision of the service by independent organizations in the community was compared.
Results: Analyses show significant differences in patterns of clinical services offered, contracted, or provided by others, based on rurality. LHDs serving rural communities, especially large rural LHDs, tend to provide more direct services than urban LHDs. Among rural LHDs, larger rural LHDs provided a broader array of services and reported more community capacity for delivery than small rural LHDs- particularly maternal and child health services.
Implications: There are capacity differences between large and small rural LHDs. Limited capacity within small rural LHDs may result in providing less services, regardless of the availability of other providers within their communities. These findings provide valuable information on clinical service provision among LHDs, particularly in rural and underserved communities
Local Health Department Clinical Service Delivery along the Urban/Rural Continuum
Background: Engagement in the core public health functions and ten essential services remains the standard for measuring local health department (LHD) performance; their role as providers of clinical services remains uncertain, particularly in rural and underserved communities.
Purpose: To examine the role of LHDs as clinical service providers and how this role varies among rural and nonrural communities.
Methods: The 2013 National Association of County and City Health Officials (NACCHO) Profile was used to examine the geographic distribution of clinical service provision among LHDs. LHDs were coded as urban, large rural, or small rural based on Rural/Urban Commuting Area codes. Bivariate analysis for clinical services was conducted by rural/urban status. For each service, the proportions of LHDs that directly performed the service, contracted with other organizations to provide the service, or reported provision of the service by independent organizations in the community was compared.
Results: Analyses show significant differences in patterns of clinical services offered, contracted, or provided by others, based on rurality. LHDs serving rural communities, especially large rural LHDs, tend to provide more direct services than urban LHDs. Among rural LHDs, larger rural LHDs provided a broader array of services and reported more community capacity for delivery than small rural LHDs- particularly maternal and child health services.
Implications: There are capacity differences between large and small rural LHDs. Limited capacity within small rural LHDs may result in providing less services, regardless of the availability of other providers within their communities. These findings provide valuable information on clinical service provision among LHDs, particularly in rural and underserved communities
Internally driven large-scale changes in the size of Saturnâs magnetosphere
Saturnâs magnetic field acts as an obstacle to solar wind flow, deflecting plasma around the planet and forming a cavity known as the magnetosphere. The magnetopause defines the boundary between the planetary and solar dominated regimes, and so is strongly influenced by the variable nature of pressure sources both outside and within. Following from Pilkington et al. (2014), crossings of the magnetopause are identified using 7 years of magnetic field and particle data from the Cassini spacecraft and providing unprecedented spatial coverage of the magnetopause boundary. These observations reveal a dynamical interaction where, in addition to the external influence of the solar wind dynamic pressure, internal drivers, and hot plasma dynamics in particular can take almost complete control of the systemâs dayside shape and size, essentially defying the solar wind conditions. The magnetopause can move by up to 10â15 planetary radii at constant solar wind dynamic pressure, corresponding to relatively âplasma-loadedâ or âplasma-depletedâ states, defined in terms of the internal suprathermal plasma pressure
Myosin VI-Dependent Actin Cages Encapsulate Parkin-Positive Damaged Mitochondria.
Mitochondrial quality control is essential to maintain cellular homeostasis and is achieved by removing damaged, ubiquitinated mitochondria via Parkin-mediated mitophagy. Here, we demonstrate that MYO6 (myosin VI), a unique myosin that moves toward the minus end of actin filaments, forms a complex with Parkin and is selectively recruited to damaged mitochondria via its ubiquitin-binding domain. This myosin motor initiates the assembly of F-actin cages to encapsulate damaged mitochondria by forming a physical barrier that prevents refusion with neighboring populations. Loss of MYO6 results in an accumulation of mitophagosomes and an increase in mitochondrial mass. In addition, we observe downstream mitochondrial dysfunction manifesting as reduced respiratory capacity and decreased ability to rely on oxidative phosphorylation for energy production. Our work uncovers a crucial step in mitochondrial quality control: the formation of MYO6-dependent actin cages that ensure isolation of damaged mitochondria from the network
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Integrated Platform for Testing MEMS Mechanical Properties at the Wafer Scale by the IMaP Methodology
Extracts basic mechanical properties such as Young's modulus and cantilever curvature
The SPRY domainâcontaining SOCS box protein SPSB2 targets iNOS for proteasomal degradation
Macrophages lacking SPSB2 have increased NO production and enhanced pathogen-killing capabilities due to decreased ubiquitin-mediated destruction of iNOS
Light-induced dynamic structural color by intracellular 3D photonic crystals in brown algae
A photosynthetic algal intracellular organelle containing a living opal responds dynamically to environmental illumination.</jats:p
The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the extended Baryon Oscillation Spectroscopic Survey and from the second phase of the Apache Point Observatory Galactic Evolution Experiment
The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) has been in
operation since July 2014. This paper describes the second data release from
this phase, and the fourteenth from SDSS overall (making this, Data Release
Fourteen or DR14). This release makes public data taken by SDSS-IV in its first
two years of operation (July 2014-2016). Like all previous SDSS releases, DR14
is cumulative, including the most recent reductions and calibrations of all
data taken by SDSS since the first phase began operations in 2000. New in DR14
is the first public release of data from the extended Baryon Oscillation
Spectroscopic Survey (eBOSS); the first data from the second phase of the
Apache Point Observatory (APO) Galactic Evolution Experiment (APOGEE-2),
including stellar parameter estimates from an innovative data driven machine
learning algorithm known as "The Cannon"; and almost twice as many data cubes
from the Mapping Nearby Galaxies at APO (MaNGA) survey as were in the previous
release (N = 2812 in total). This paper describes the location and format of
the publicly available data from SDSS-IV surveys. We provide references to the
important technical papers describing how these data have been taken (both
targeting and observation details) and processed for scientific use. The SDSS
website (www.sdss.org) has been updated for this release, and provides links to
data downloads, as well as tutorials and examples of data use. SDSS-IV is
planning to continue to collect astronomical data until 2020, and will be
followed by SDSS-V.Comment: SDSS-IV collaboration alphabetical author data release paper. DR14
happened on 31st July 2017. 19 pages, 5 figures. Accepted by ApJS on 28th Nov
2017 (this is the "post-print" and "post-proofs" version; minor corrections
only from v1, and most of errors found in proofs corrected
Anti-HIV-1 activity of anionic polymers: a comparative study of candidate microbicides
BACKGROUND: Cellulose acetate phthalate (CAP) in soluble form blocks coreceptor binding sites on the virus envelope glycoprotein gp120 and elicits gp41 six-helix bundle formation, processes involved in virus inactivation. CAP is not soluble at pH < 5.5, normal for microbicide target sites. Therefore, the interaction between insoluble micronized CAP and HIV-1 was studied. Carbomer 974P/BufferGel; carrageenan; cellulose sulfate; dextran/dextrin sulfate, poly(napthalene sulfonate) and poly(styrene-4-sulfonate) are also being considered as anti-HIV-1 microbicides, and their antiviral properties were compared with those of CAP. METHODS: Enzyme linked immunosorbent assays (ELISA) were used to (1) study HIV-1 IIIB and BaL binding to micronized CAP; (2) detect virus disintegration; and (3) measure gp41 six-helix bundle formation. Cells containing integrated HIV-1 LTR linked to the ÎČ-gal gene and expressing CD4 and coreceptors CXCR4 or CCR5 were used to measure virus infectivity. RESULTS: 1) HIV-1 IIIB and BaL, respectively, effectively bound to micronized CAP. 2) The interaction between HIV-1 and micronized CAP led to: (a) gp41 six-helix bundle formation; (b) virus disintegration and shedding of envelope glycoproteins; and (c) rapid loss of infectivity. Polymers other than CAP, except Carbomer 974P, elicited gp41 six-helix bundle formation in HIV-1 IIIB but only poly(napthalene sulfonate), in addition to CAP, had this effect on HIV-1 BaL. These polymers differed with respect to their virucidal activities, the differences being more pronounced for HIV-1 BaL. CONCLUSIONS: Micronized CAP is the only candidate topical microbicide with the capacity to remove rapidly by adsorption from physiological fluids HIV-1 of both the X4 and R5 biotypes and is likely to prevent virus contact with target cells. The interaction between micronized CAP and HIV-1 leads to rapid virus inactivation. Among other anionic polymers, cellulose sulfate, BufferGel and aryl sulfonates appear most effective in this respect
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