A new syndrome called “Long COVID” has emerged amongst the survivors of acute COVID-19 infection. Its protracted and debilitating nature will almost certainly result in many short and long-term disability claims. Insurers need to understand the nature of Long COVID, including its definition, its prevalence, its natural history, and underlying risk factors. This article will summarize current knowledge of Long COVID and provide a perspective on its evolution and its impact.

The Columbia The Columbia guide to Irish American history / Timothy Meagher. 18 Jun 2018. Early American Newspapers. Over 700 historical newspapers from 23 U.S. states and the District of Columbia. Series 1, 1690-1876: From Meagher pays special attention to Irish American families and the roles of men and women, the emergence of the Irish as a governing class in American politics, the paradox of their combination of fervent American patriotism and passionate Irish nationalism, and their complex and sometimes tragic relations with .

Here we report a scalable colloidal templating approach for fabricating periodic arrays of metallic and silicon nanorings with complex nanostructures. Non-close-packed monolayer silica colloidal crystal prepared by a simple spin-coating technology is first used as template for making periodic arrays of mushroom-like composite nanostructures consisting of silica spherical caps and polymer stems. Subsequent metal sputtering and reactive ion etching lead to the formation of ordered asymmetric nickel nanorings which can be further utilized as etching masks for patterning periodic arrays of symmetric silicon nanorings. Moreover, periodic arrays of metallic and silicon concentric double nanorings can be fabricated by using the asymmetric nickel nanorings as templates. We have also demonstrated that gold concentric double nanorings show strong surface-enhanced Raman scattering (SERS) with a SERS enhancement factor of ∼9.5 × 10(7) from adsorbed benzenethiol molecules. The SERS enhancement and the electric field amplitude distribution surrounding gold concentric double nanorings have been calculated by using finite element electromagnetic modeling. This new colloidal templating technique is compatible with standard microfabrication and enables wafer-scale production of a variety of periodic nanorings with hierarchical structures that could find important technological applications in plasmonic and magnetic devices.

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Pancreatic cysts are more common than before, largely because of widespread abdominal imaging. Pancreatic cystic neoplasms (PCN) are relevant to risk selection on 2 counts: they constitute more than 50% of all pancreatic cysts and, in contrast to the other 2 cyst types, are capable of malignant transformation. The majority of PCNs are benign at time of diagnosis and will follow a benign course. The challenge is to identify those PCNs that are malignant or will undergo malignant transformation with time. The purpose of this article is to provide pointers that can help meet this challenge while also summarizing the ongoing debate about their optimal management.