4 research outputs found
Online Search Tool for Graphical Patterns in Electronic Band Structures
We present an online graphical pattern search tool for electronic band
structure data contained within the Organic Materials Database (OMDB) available
at https://omdb.diracmaterials.org/search/pattern. The tool is capable of
finding user-specified graphical patterns in the collection of thousands of
band structures from high-throughput ab initio calculations in the online
regime. Using this tool, it only takes a few seconds to find an arbitrary
graphical pattern within the ten electronic bands near the Fermi level for
26,739 organic crystals. The tool can be used to find realizations of
functional materials characterized by a specific pattern in their electronic
structure, for example, Dirac materials, characterized by a linear crossing of
bands; topological insulators, characterized by a "Mexican hat" pattern or an
effectively free electron gas, characterized by a parabolic dispersion. The
source code of the developed tool is freely available at
https://github.com/OrganicMaterialsDatabase/EBS-search and can be transferred
to any other electronic band structure database. The approach allows for an
automatic online analysis of a large collection of band structures where the
amount of data makes its manual inspection impracticable.Comment: 8 pages, 8 figure
Immunization status in chronic obstructive pulmonary disease: A multicenter study from Turkey
OBJECTIVE: The purpose of this study is to detect the prevalence and the factors associated with influenza and pneumococcal vaccination and outcomes of vaccination during 2013-2014 season in patients with chronic obstructive pulmonary disease (COPD) in Turkey
Immunization status in chronic obstructive pulmonary disease: A multicenter study from Turkey
OBJECTIVE: The purpose of this study is to detect the prevalence and the
factors associated with influenza and pneumococcal vaccination and
outcomes of vaccination during 2013-2014 season in patients with chronic
obstructive pulmonary disease (COPD) in Turkey.
METHODS: This was a multicenter retrospective cohort study performed in
53 different centers in Turkey.
RESULTS: During the study period, 4968 patients were included. COPD was
staged as GOLD 1-2-3-4 in 9.0\%, 42.8\%, 35.0\%, and 13.2\% of the
patients, respectively. Influenza vaccination rate in the previous year
was 37.9\%; and pneumococcus vaccination rate, at least once during in a
life time, was 13.3\%. Patients with older age, higher level of
education, more severe COPD, and comorbidities, ex-smokers, and patients
residing in urban areas had higher rates of influenza vaccination.
Multivariate logistic regression analysis showed that advanced age,
higher education levels, presence of comorbidities, higher COPD stages,
and exacerbation rates were associated with both influenza and
pneumococcal vaccination. The number of annual physician/outpatient
visits and hospitalizations due to COPD exacerbation was 2.73 +/- 2.85
and 0.92 +/- 1.58 per year, respectively. Patients with older age, lower
education levels, more severe COPD, comorbid diseases, and lower body
mass index and patients who are male and are residing in rural areas and
vaccinated for influenza had significantly higher rates of COPD
exacerbation.
CONCLUSIONS: The rates of influenza and pneumococcal vaccination in COPD
patients were quite low, and the number of annual physician/outpatient
visits and hospitalizations due to COPD exacerbation was high in Turkey.
Advanced age, higher education levels, comorbidities, and higher COPD
stages were associated with both influenza and pneumococcal vaccination