Mapping State Unemployment

In this data snapshot, authors Michael Ettlinger and Jordan Hensley report the relative level of initial unemployment claims for the week ending March 28 as a share of the labor force, and the “insured unemployment” as a share of the February labor force for the week ending March 21. Hawaii, Michigan, and Pennsylvania top the list of initial unemployment claims

Budgeting for Growth and Prosperity: A Long-Term Plan to Balance the Budget, Grow the Economy, and Strengthen the Middle Class

Proposes reducing the deficit by investing in education, infrastructure, and technology; spending more efficiently; bolstering the social safety net; containing healthcare costs; simplifying the tax code; and raising gas and financial transaction taxes

Experiencing architecture, Ljubljana Island

This workshop took place at the Florjančič studio in order to support 4th year students in designing their urban development projects in the city of Ljubljana. To serve this purpose, the workshop provided students with an opportunity to raise their awareness of a particular aspect of architecture and the city: the way it is experienced. The task was to design the undeveloped banks of the Ljubljanica River and Gruber Canal - but with an alternative perception in mind: not just as a sequence of river banks, but as parts that form a continuous promenade encircling the city which provides a whole range of spatial experiences

Optical shaping of gas targets for laser plasma ion sources

We report on the experimental demonstration of a technique to generate steep density gradients in gas-jet targets of interest to laser–plasma ion acceleration. By using an intentional low-energy prepulse, we generated a hydrodynamic blast wave in the gas to shape the target prior to the arrival of an intense CO$_{2}$ (${\it\lambda}\approx 10~{\rm\mu}\text{m}$) drive pulse. This technique has been recently shown to facilitate the generation of ion beams by shockwave acceleration (Tresca et al., Phys. Rev. Lett., vol. 115 (9), 2015, 094802). Here, we discuss and introduce a model to understand the generation of these blast waves and discuss in depth the experimental realisation of the technique, supported by hydrodynamics simulations. With appropriate prepulse energy and timing, this blast wave can generate steepened density gradients as short as $l\approx 20~{\rm\mu}\text{m}$ ($1/e$), opening up new possibilities for laser–plasma studies with near-critical gaseous targets.</jats:p