The financial assistance of the Analytical Division of the American Chemical Society through an award of a 1976-77 full year fellowship to L.M.U. is gratefully acknowledged. Research support provided by the State of New Jersey under provisions of the Independent Colleges and Universities Utilization Act is also gratefully acknowledged.

This exploratory article describes the planning and execution of an accessible library makerspace event for people with disabilities (specifically, patrons with cognitive and visual impairments). We begin with a literature review on the maker movement and a description of makerspaces in libraries. We highlight the insufficient focus on making these makerspaces accessible for people with all abilities. Next, we describe the design of the makerspace event that we implemented at a local public library and extrapolate the on-the-go modifications that we made for patrons with cognitive and visual impairment who attended the event. Based on the lessons learned through the implementation of this event, we provide suggestions for creating accessible makerspace events in libraries, including concrete recommendations on the design of the stations.As libraries evolve librarians seek new ways to serve the public and fulfill their mission. One recent development is the so-called maker movement, which gives library patrons the opportunity to experiment and tinker 1 in on-site makerspaces or maker-themed events. Lauren Britton (2012) writes:

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A variational procedure for calculating the two-body T matrix T, (p, p';s) is proposed, and studied numerically for the case of the Reid So soft core potential. The method is based on a variational principle of the Schwinger type, in which the trial functions are themselves offenergy-shell T matrices with fixed s andp (or fixed s andp'), which are expressed as linear combinations of a convenient basis set. The variationally calculated T matrix turns out to have the interesting form T =V+VAN'V, where 6' is a finite-rank approximation to the full Green's function, of rank equal to the number of basis functions. It also turns out that for potentials of finite rank the approximation is exact, provided that the space spanned by the basis functions includes the form factors of the potential. Numerical results are given for the Reid potential at energies from -50 to 300 MeV, and show good convergence for both onand off-shell T matrix elements. The nonvariational estimates obtained directly from the trial functions also converge quite well, but less rapidly than the variational results.

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