1,604 research outputs found
O/IR Polarimetry for the 2010 Decade (GAN): Science at the Edge, Sharp Tools for All
Science opportunities and recommendations concerning optical/infrared
polarimetry for the upcoming decade in the field of Galactic science.
Community-based White Paper to Astro2010 in response to the call for such
papers.Comment: White Paper to the Galactic Neighborhood (GAN) Science Frontiers
Panel of the Astro2010 Decadal Surve
Tuberculose em Salvador: custos para o sistema de saúde e para as famílias
OBJECTIVE: Tuberculosis is one the greatest causes of mortality worldwide, but its economic effects are not well known. This study had the objective of estimating the costs to the public and private healthcare systems and to families of tuberculosis treatment and prevention. METHODS: This study was made in the municipality of Salvador, State of Bahia, Brazil, in 1999. Data for estimating the costs to the healthcare system were collected from the Department of Health, healthcare facilities and a philanthropic institution. The public and private costs were analyzed using cost accounting methodology. Cost data relating to families were collected by means of questionnaires, and included data on transportation, food and other expenses, and also income losses associated with this disease. RESULTS: The average cost of treating one new case of tuberculosis was approximately US186,00 (US$103); para o tratamento de um paciente multiresistente o custo foi 27 vezes mais alto. Os custos para o serviço público corresponderam a 65% em internações, 32% em tratamento e apenas 3% em prevenção. As famílias comprometeram cerca de 33% da sua renda com despesas relacionadas a tuberculose. CONCLUSÕES: Apesar do fato das famílias não terem que pagar por medicamentos e tratamento, dado que este serviço é oferecido pelo Estado, os custos familiares ligados a perda de rendimentos devido a doença foram muito elevados. A proporção utilizada em prevenção pelo serviço público é pequena. Um maior investimento em campanhas de prevenção poderia não somente diminuir o número de casos, mas também, levar a um diagnósticos precoce, diminuindo os custos associados à hospitalização. A falta de um sistema integrado de custos não permite a visualização dos custos nos diversos setores
Patient and Physician Factors Associated with First Diagnosis of Non-affective Psychotic Disorder in Primary Care
Primary care physicians play a central role in pathways to care for first-episode psychosis, and their increased involvement in early detection could improve service-related outcomes. The aim of this study was to estimate the proportion of psychosis first diagnosed in primary care, and identify associated patient and physician factors. We used linked health administrative data to construct a retrospective cohort of people aged 14-35 years with a first diagnosis of non-affective psychosis in Ontario, Canada between 2005-2015. We restricted the sample to patients with help-seeking contacts for mental health reasons in primary care in the six months prior to first diagnosis of psychotic disorder. We used modified Poisson regression models to examine patient and physician factors associated with a first diagnosis of psychosis in primary care. Among people with early psychosis (n = 39,449), 63% had help-seeking contacts in primary care within six months prior to first diagnosis. Of those patients, 47% were diagnosed in primary care and 53% in secondary/tertiary care. Patients factors associated with lower likelihood of diagnosis in primary care included male sex, younger age, immigrant status, and comorbid psychosocial conditions. Physician factors associated with lower likelihood of diagnosis in primary care included solo practice model, urban practice setting, international medical education, and longer time since graduation. Our findings indicate that primary care is an important contact for help-seeking and diagnosis for a large proportion of people with early psychosis. For physicians less likely to diagnose psychosis in primary care, targeted resources and interventions could be provided to support them in caring for patients with early psychosis
Understanding Polarized Foreground from Dust: Towards Reliable Measurements of CMB Polarization
Science opportunities and recommendations concerning optical/infrared
polarimetry for the upcoming decade in the field of cosmology. Community-based
White Paper to Astro2010 in response to the call for such papers.Comment: White Paper to the Cosmology and Fundamental Physics (GCT) Science
Frontiers Panel of the Astro2010 Decadal Surve
O/IR Polarimetry for the 2010 Decade (PSF): Science at the Edge, Sharp Tools for All
Science opportunities and recommendations concerning optical/infrared
polarimetry for the upcoming decade in the fields of planetary systems and star
formation. Community-based White Paper to Astro2010 in response to the call for
such papers.Comment: White Paper to the Planetary Systems and Star Formation (PSF) Science
Frontiers Panel of the Astro2010 Decadal Surve
The Second APOKASC Catalog: The Empirical Approach
We present a catalog of stellar properties for a large sample of 6676 evolved
stars with APOGEE spectroscopic parameters and \textit{Kepler} asteroseismic
data analyzed using five independent techniques. Our data includes evolutionary
state, surface gravity, mean density, mass, radius, age, and the spectroscopic
and asteroseismic measurements used to derive them. We employ a new empirical
approach for combining asteroseismic measurements from different methods,
calibrating the inferred stellar parameters, and estimating uncertainties. With
high statistical significance, we find that asteroseismic parameters inferred
from the different pipelines have systematic offsets that are not removed by
accounting for differences in their solar reference values. We include
theoretically motivated corrections to the large frequency spacing () scaling relation, and we calibrate the zero point of the frequency of
maximum power () relation to be consistent with masses and radii
for members of star clusters. For most targets, the parameters returned by
different pipelines are in much better agreement than would be expected from
the pipeline-predicted random errors, but 22\% of them had at least one method
not return a result and a much larger measurement dispersion. This supports the
usage of multiple analysis techniques for asteroseismic stellar population
studies. The measured dispersion in mass estimates for fundamental calibrators
is consistent with our error model, which yields median random and systematic
mass uncertainties for RGB stars of order 4\%. Median random and systematic
mass uncertainties are at the 9\% and 8\% level respectively for RC stars.Comment: 29 pages, 26 figures. Submitted ApJSupp. Comments welcome. For access
to the main data table (Table 5) use
https://www.dropbox.com/s/k33td8ukefwy5tv/APOKASC2_Table5.txt?dl=0; for
access to the individual pipeline values (Table 6) use
https://www.dropbox.com/s/vl9s2p3obftrv8m/APOKASC2_Table6.txt?dl=
The epidemiology, pathogenesis, transmission, diagnosis, and management of multidrug-resistant, extensively drug-resistant, and incurable tuberculosis.
Global tuberculosis incidence has declined marginally over the past decade, and tuberculosis remains out of control in several parts of the world including Africa and Asia. Although tuberculosis control has been effective in some regions of the world, these gains are threatened by the increasing burden of multidrug-resistant (MDR) and extensively drug-resistant (XDR) tuberculosis. XDR tuberculosis has evolved in several tuberculosis-endemic countries to drug-incurable or programmatically incurable tuberculosis (totally drug-resistant tuberculosis). This poses several challenges similar to those encountered in the pre-chemotherapy era, including the inability to cure tuberculosis, high mortality, and the need for alternative methods to prevent disease transmission. This phenomenon mirrors the worldwide increase in antimicrobial resistance and the emergence of other MDR pathogens, such as malaria, HIV, and Gram-negative bacteria. MDR and XDR tuberculosis are associated with high morbidity and substantial mortality, are a threat to health-care workers, prohibitively expensive to treat, and are therefore a serious public health problem. In this Commission, we examine several aspects of drug-resistant tuberculosis. The traditional view that acquired resistance to antituberculous drugs is driven by poor compliance and programmatic failure is now being questioned, and several lines of evidence suggest that alternative mechanisms-including pharmacokinetic variability, induction of efflux pumps that transport the drug out of cells, and suboptimal drug penetration into tuberculosis lesions-are likely crucial to the pathogenesis of drug-resistant tuberculosis. These factors have implications for the design of new interventions, drug delivery and dosing mechanisms, and public health policy. We discuss epidemiology and transmission dynamics, including new insights into the fundamental biology of transmission, and we review the utility of newer diagnostic tools, including molecular tests and next-generation whole-genome sequencing, and their potential for clinical effectiveness. Relevant research priorities are highlighted, including optimal medical and surgical management, the role of newer and repurposed drugs (including bedaquiline, delamanid, and linezolid), pharmacokinetic and pharmacodynamic considerations, preventive strategies (such as prophylaxis in MDR and XDR contacts), palliative and patient-orientated care aspects, and medicolegal and ethical issues
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