Solar cycle variation in Sun-as-a-star Ca II 854.2 nm bisectors

The bisector of the strong chromospheric Ca II 854.2 nm line has an inverse-C shape the cause of which is not yet fully understood. We show that the amplitude of the bisector in Sun-as-a-star observations exhibits a solar cycle variation with smaller amplitudes during highest activity. The line core intensity is lower during solar minima while the part of the bisector most sensitive to the line core shows no systematic change with activity. Our results support the use of Ca II 854.2 nm bisectors in studying the relationship between convection and magnetic fields, not only in the Sun but in other stars as well.Comment: Accepted to Ap

How Giving Contests Can Strengthen Nonprofits and Communities

Presents a case study of Give to the Max Day: Greater Washington, its financial performance and impact on area nonprofits' relationships with donors, capacity building, and the sector. Outlines successful strategies and tips for nonprofits and organizers

Hispanics, Health Insurance and Health Care Access

Compares the insurance status, usual healthcare provider, reasons for not having a usual provider, health status, and healthcare experiences of Latinos/Hispanics who are not citizens or legal permanent residents with those of Latinos/Hispanics who are