4,281 research outputs found
The New Left and the Human Service Professions
There are three characteristics of the New Left which had impact on social and human service professionals. Egalitarianism produced distrustof orthodox professional detachment from and power over poor and minority persons. The movement also gave expression to guilt, for some, over their privileged backgrounds. The New Left\u27s decentralist views about power produced an orientation to local insurgency: the organization of neighborhood and community activist organizations. In combination, for those influenced by the movement and entering the professions, a characteristic type of new professionalism arose: advocacy for the interests and organizations of the oppressed. Illustrations of this process are found in city planning and the academic disciplines, as well as other traditional and social service professions
Problems of Advocacy
The recent past has seen the erosion, and among some, the rejection, of social science neutrality and professional detachment. Among the typical expressions of a new professionalism is the underdog advocate, who wishes to lend his or her skills to the cause of less-than-equal groups in the society. The paper analyzes the problems confronting such advocates. The first is the discrepancy between career routes and success behavior on one hand, and the needs of poor people on the other. The second is the difficulty encountered by middle strata professionals in cross-class and cross-cultural communication, including their own ignorance of the structure and dynamics of minority and poor peoples\u27 communities. The third problem faced by the advocates is that the mere addition of their expert skills to the struggles of the deprived is not necessarily or usually adequate in terms of power resources. If advocates have, however, a modest definition of their possible accomplishment, and if they view underprivileged groups as the main actors in their own behalf, their roles may be defined more realistically
Corn production : a 4-H project
November, 1949."University of Missouri College of Agriculture and the United States Department of Agriculture Cooperating"--Page [12].Title from caption
Corn production : a 4-H project
University of Missouri College of Agriculture and the United States Department of Agriculture cooperating."December, 1943."Title from cover
Anisotropic determined up to 92 T and the signature of multi-band superconductivity in Ca(PtAs)((FePt)As) superconductor
The upper critical fields, (), of single crystals of the
superconductor
Ca(PtAs)((FePt)As)
( 0.246) are determined over a wide range of temperatures
down to = 1.42 K and magnetic fields of up to 92 T. The
measurements of anisotropic () curves are performed in pulsed
magnetic fields using radio-frequency contactless penetration depth
measurements for magnetic field applied both parallel and perpendicular to the
\textbf{ab}-plane. Whereas a clear upward curvature in
() along \textbf{H}\textbf{c} is
observed with decreasing temperature, the ()
along \textbf{H}\textbf{ab} shows a flattening at low temperatures.
The rapid increase of the () at low
temperatures suggests that the superconductivity can be described by two
dominating bands. The anisotropy parameter,
, is 7 close
to and decreases considerably to 1 with decreasing temperature,
showing rather weak anisotropy at low temperatures.Comment: 4pages, 3figures, accepted PRB Rapid Communicatio
Functional correlates of optic flow motion processing in Parkinson’s disease
The visual input created by the relative motion between an individual and the environment, also called optic flow, influences the sense of self-motion, postural orientation, veering of gait, and visuospatial cognition. An optic flow network comprising visual motion areas V6, V3A, and MT+, as well as visuo-vestibular areas including posterior insula vestibular cortex (PIVC) and cingulate sulcus visual area (CSv), has been described as uniquely selective for parsing egomotion depth cues in humans. Individuals with Parkinson’s disease (PD) have known behavioral deficits in optic flow perception and visuospatial cognition compared to age- and education-matched control adults (MC). The present study used functional magnetic resonance imaging (fMRI) to investigate neural correlates related to impaired optic flow perception in PD. We conducted fMRI on 40 non-demented participants (23 PD and 17 MC) during passive viewing of simulated optic flow motion and random motion. We hypothesized that compared to the MC group, PD participants would show abnormal neural activity in regions comprising this optic flow network. MC participants showed robust activation across all regions in the optic flow network, consistent with studies in young adults, suggesting intact optic flow perception at the neural level in healthy aging. PD participants showed diminished activity compared to MC particularly within visual motion area MT+ and the visuo-vestibular region CSv. Further, activation in visuo-vestibular region CSv was associated with disease severity. These findings suggest that behavioral reports of impaired optic flow perception and visuospatial performance may be a result of impaired neural processing within visual motion and visuo-vestibular regions in PD.Published versio
The VISTA Science Archive
We describe the VISTA Science Archive (VSA) and its first public release of
data from five of the six VISTA Public Surveys. The VSA exists to support the
VISTA Surveys through their lifecycle: the VISTA Public Survey consortia can
use it during their quality control assessment of survey data products before
submission to the ESO Science Archive Facility (ESO SAF); it supports their
exploitation of survey data prior to its publication through the ESO SAF; and,
subsequently, it provides the wider community with survey science exploitation
tools that complement the data product repository functionality of the ESO SAF.
This paper has been written in conjunction with the first public release of
public survey data through the VSA and is designed to help its users understand
the data products available and how the functionality of the VSA supports their
varied science goals. We describe the design of the database and outline the
database-driven curation processes that take data from nightly
pipeline-processed and calibrated FITS files to create science-ready survey
datasets. Much of this design, and the codebase implementing it, derives from
our earlier WFCAM Science Archive (WSA), so this paper concentrates on the
VISTA-specific aspects and on improvements made to the system in the light of
experience gained in operating the WSA.Comment: 22 pages, 16 figures. Minor edits to fonts and typos after
sub-editting. Published in A&
Thrombospondin-3 augments injury-induced cardiomyopathy by intracellular integrin inhibition and sarcolemmal instability.
Thrombospondins (Thbs) are a family of five secreted matricellular glycoproteins in vertebrates that broadly affect cell-matrix interaction. While Thbs4 is known to protect striated muscle from disease by enhancing sarcolemmal stability through increased integrin and dystroglycan attachment complexes, here we show that Thbs3 antithetically promotes sarcolemmal destabilization by reducing integrin function, augmenting disease-induced decompensation. Deletion of Thbs3 in mice enhances integrin membrane expression and membrane stability, protecting the heart from disease stimuli. Transgene-mediated overexpression of α7β1D integrin in the heart ameliorates the disease predisposing effects of Thbs3 by augmenting sarcolemmal stability. Mechanistically, we show that mutating Thbs3 to contain the conserved RGD integrin binding domain normally found in Thbs4 and Thbs5 now rescues the defective expression of integrins on the sarcolemma. Thus, Thbs proteins mediate the intracellular processing of integrin plasma membrane attachment complexes to regulate the dynamics of cellular remodeling and membrane stability
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Electronic Health Record-Based Surveillance for Community Transmitted COVID-19 in the Emergency Department
Introduction: SARS-CoV-2, a novel coronavirus, manifests as a respiratory syndrome (COVID-19) and is the cause of an ongoing pandemic. The response to COVID-19 in the United States has been hampered by an overall lack of diagnostic testing capacity. To address uncertainty about ongoing levels of SARS-CoV-2 community transmission early in the pandemic, we aimed to develop a surveillance tool using readily available emergency department (ED) operations data extracted from the electronic health record (EHR). This involved optimizing the identification of acute respiratory infection (ARI)-related encounters and then comparing metrics for these encounters before and after the confirmation of SARS-CoV-2 community transmission.Methods: We performed an observational study using operational EHR data from two Midwest EDs with a combined annual census of over 80,000. Data were collected three weeks before and after the first confirmed case of local SARS-CoV-2 community transmission. To optimize capture of ARI cases, we compared various metrics including chief complaint, discharge diagnoses, and ARI-related orders. Operational metrics for ARI cases, including volume, pathogen identification, and illness severity, were compared between the pre- and post-community transmission timeframes using chi-square tests of independence.Results: Compared to our combined definition of ARI, chief complaint, discharge diagnoses, and isolation orders individually identified less than half of the cases. Respiratory pathogen testing was the top performing individual ARI definition but still only identified 72.2% of cases. From the pre to post periods, we observed significant increases in ED volumes due to ARI and ARI cases without identified pathogen.Conclusion: Certain methods for identifying ARI cases in the ED may be inadequate and multiple criteria should be used to optimize capture. In the absence of widely available SARS-CoV-2 testing, operational metrics for ARI-related encounters, especially the proportion of cases involving negative pathogen testing, are useful indicators for active surveillance of potential COVID-19 related ED visits
Implementing fluorescent MOFs as down-converting layers in hybrid light-emitting diodes
One of the most important non-radiative relaxation processes that limits the quantum yield of a fluorophore is related to aggregation of the molecules in the solid-state causing excimer quenching. To limit this quenching mechanism, the fluorophore can be contained within a well-ordered 3D system that minimises aggregation through rigid bonds and spatial separation in a defined topological construct. Herein, the synthesis, characterisation and application as a down-converter of a new luminescent 3D material (MOF-BTBMBA) that incorporates a building block based on a benzothiadiazole (BT) derivative (BTBMBA) in a metal-organic framework (MOF) is presented. Notably, photoluminescent quantum yield and hybrid LED performance are significantly improved for the MOF-based device compared to that prepared with the free ligand, highlighting the effectiveness of the rigid scaffold arrangement
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