Charm Meson Mixing: An Experimental Review

We review current experimental results on charm mixing and CP violation. We survey experimental techniques, including time-dependent, time-independent, and quantum-correlated measurements. We review techniques that use a slow pion tag from D*+ --> pi+ D0 + c.c. decays and those that do not, and cover two-body and multi-body D0 decay modes. We provide a summary of D-mixing results to date and comment on future experimental prospects at the LHC and other new or planned facilities.Comment: 53 pages, 29 figures, 8 table

The State of Nonprofits in Southeast Louisiana: The Impact of COVID-19

The Greater New Orleans Foundation (GNOF) in partnership with the University of New Orleans’ (UNO) Political Science Department undertook a study to gain insights on the impact the ongoing COVID-19 pandemic is having on nonprofit organizations located in Southeast Louisiana and to share this information as a resource to philanthropy, nonprofits, and civic leaders in our region. GNOF and UNO conducted online and phone surveys beginning March 23, 2020 through April 13, 2020 which targeted 501(c)3 public charities, excluding churches, foundations, and unique groups of larger nonprofits such as hospitals, universities, and charter schools. Our research examined ten essential questions facing these nonprofit organizations, which were grouped in the following categories: 1) baseline nonprofit data, 2) COVID-19’s impact on nonprofits, and 3) responses and resources to COVID-19 for nonprofit and partners

Distribution of selected healthcare resources for influenza pandemic response in Cambodia.

INTRODUCTION: Human influenza infection poses a serious public health threat in Cambodia, a country at risk for the emergence and spread of novel influenza viruses with pandemic potential. Prior pandemics demonstrated the adverse impact of influenza on poor communities in developing countries. Investigation of healthcare resource distribution can inform decisions regarding resource mobilization and investment for pandemic mitigation. METHODS: A health facility survey performed across Cambodia obtained data on availability of healthcare resources important for pandemic influenza response. Focusing on five key resources considered most necessary for treating severe influenza (inpatient beds, doctors, nurses, oseltamivir, and ventilators), resource distributions were analyzed at the Operational District (OD) and Province levels, refining data analysis from earlier studies. Resources were stratified by respondent type (hospital vs. District Health Office [DHO]). A summary index of distribution inequality was calculated using the Gini coefficient. Indices for local spatial autocorrelation were measured at the OD level using geographical information system (GIS) analysis. Finally, a potential link between socioeconomic status and resource distribution was explored by mapping resource densities against poverty rates. RESULTS: Gini coefficient calculation revealed variable inequality in distribution of the five key resources at the Province and OD levels. A greater percentage of the population resides in areas of relative under-supply (28.5%) than over-supply (21.3%). Areas with more resources per capita showed significant clustering in central Cambodia while areas with fewer resources clustered in the northern and western provinces. Hospital-based inpatient beds, doctors, and nurses were most heavily concentrated in areas of the country with the lowest poverty rates; however, beds and nurses in Non-Hospital Medical Facilities (NHMF) showed increasing concentrations at higher levels of poverty. CONCLUSIONS: There is considerable heterogeneity in healthcare resource distribution across Cambodia. Distribution mapping at the local level can inform policy decisions on where to stockpile resources in advance of and for reallocation in the event of a pandemic. These findings will be useful in determining future health resource investment, both for pandemic preparedness and for general health system strengthening, and provide a foundation for future analyses of equity in health services provision for pandemic mitigation planning in Cambodia

Histomorphology of prepuberal ovaries in the South American fur seal (Arctocephalus australis Zimmerman, 1783)

The South American fur seal reproductive histophysiology is scarcely described. This study provides a histological description of prepuberal South American fur seal (Arctocephalus australis) ovaries as well as three-dimensional reconstructions of subcapsular crypts and primordial follicles. Ovaries from fresh dead animals were processed for histology and sliced into serial sections. A portion of the superficial cortex was photographed, and the images were processed using BioVis3d software in order to generate 3-dimensional reconstructions. A. australis prepuberal ovaries conform to the basic structure of pinnipedian species, with a subcapsular crypts system made up of interconnecting cisternae and tubules with multiple openings to the surface. Generally, the primordial follicles were arranged in a monolayer beneath the tunica albuginea and were closely associated with subcapsular crypts. The large number of interstitial cells distributed throughout the cortex was the main histological feature in comparison with previous reports in other seals. Three-dimensional reconstructions modelled the subcapsular crypts microarchitecture and showed the close spatial relationship between the crypts and the primordial follicles. Despite the fact that the general ovarian histological structure was similar to that of other pinnipeds, the large number of interstitial cells is a distinctive feature that raises the question about the origin and function in A. australis with regard to the steroidogenic activity reported in other seal species

How a Community Foundation’s Disaster Framework Guided Rapid Pandemic Response

Disasters create opportunities for philanthropy to rebuild equitably by prioritizing the most vulnerable community members in disaster response and addressing existing disparities and structural inequities in the recovery phase. As intermediaries between donors and local communities, community foundations are well-positioned to lead transformational disaster response. Through its experience with Hurricane Katrina and subsequent disasters in the region, the Greater New Orleans Foundation developed a flexible disaster framework that emphasizes four broad principles — resilience, sustainability, civic participation, and equity — and specific practices in each area to guide rapid and long-term disaster response and preparedness. This article describes how the foundation is applying that framework to respond to COVID-19 and concurrent disasters in ways that mitigate immediate harms while laying the groundwork for an equitable long-term recovery. Based on a review of organizational documents and interviews with high-level staff involved in disaster grantmaking over the past decade, the article details how the foundation inductively developed its disaster framework through experiences supporting nonprofits and community members after Hurricane Katrina and subsequent disasters. It then explains how the foundation has adapted the principles to pandemic response