Publications by authors named "D L Sagan"

Food insecurity is a mechanism through which the mental health impacts of systemic social inequities multiply across the lifespan. Federally administered food assistance programs improve food security, but their impact on mental health is less clear. We conducted a systematic review of all studies that reported an association between food assistance participation and mental health (N = 34), and a multilevel meta-analysis among studies that met inclusion criteria and reported sufficient statistical results (n = 21; k = 44).

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  • - The text discusses the design of sagittally focusing x-ray crystal spectrometers that use elliptical profiles to enhance plasma diagnostics, especially in scenarios with high neutron emissions.
  • - These spectrometers are designed with adjustable radii of curvature to focus on different photon energies and optimize the arrangement to minimize neutron background interference.
  • - Two spectrometer designs are proposed: one for x-ray continuum spectroscopy with high magnification and limited resolution, and another for time-resolved spectroscopy with high demagnification aimed at improving spectral resolution, which have been validated through ray tracing.
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  • A retrospective study of 704 adults in Jaworzno, Poland, assessed awareness of Lyme disease and antibody levels for B. burgdorferi after recent tick bites.
  • Among participants, 79.3% had contact with ticks, with 25.99% testing positive for IgG antibodies and 25.57% for IgM antibodies using ELISA tests.
  • The study concluded that the ELISA method yielded consistent serological results, correlating with survey responses about tick exposure and subsequent tests for antibodies.
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Introduction And Objective: Lung cancer is the most common malignant tumour. More than 80% of all diagnosed cases are non-small cell carcinoma which can be effectively treated by radical resection. Despite significant progress in the field of diagnostic and therapeutic methods, the results of lung cancer treatment are still unsatisfactory.

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Background: This study examined student and caregiver preference for school communication and explored the feasibility and acceptability of a digital tool to assist with communication about school meal program between schools and families.

Methods: The study used qualitative methodology through youth focus groups and caregiver semi-structured phone interviews. The study was conducted in 4 high schools in a large, urban city.

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