Ultraviolet Resonance Lamp-Patent

Development of ultraviolet resonance lamp with improved transmission of radiatio

Development of an optimized second harmonic generator cell Final scientific report, 12 Jun. 1969 - 12 Mar. 1970

Optimized second harmonic generator cel

Improved ultraviolet resonance lamp

Removal of the seal area from the path of the lamp discharge eliminates the gradual deterioration of lithium fluoride window surfaces from condensation of products formed by interaction of a resonant rare-gas discharge with window sealing materials. The discharge is confined to the inner tube

The Spin and Flavour Dependence of High-Energy Photoabsorption

We review the present data on high-energy, spin-dependent photoabsorption. We find a strong isotriplet term in $(\sigma_A - \sigma_P)$ which persists from $Q^2 \sim 0.25$GeV$^2$ to high $Q^2$ polarised deep inelastic scattering. For $Q^2 \sim 4$GeV$^2$ and $x$ between 0.01 and 0.12 the isotriplet part of $g_1$ behaves as $g_1^{(p-n)} \sim x^{-{1 \over 2}}$, in contrast to soft Regge theory which predicts that $g_1^{(p-n)}$ should converge as $x \to 0$. The isotriplet, polarised structure function $2x g_1^{(p-n)}$ is significantly greater than the isotriplet, unpolarised structure function $F_2^{(p-n)}$ in this kinematic region. We analyse the low $Q^2$ photoabsorption data from E-143 and SMC and use this data to estimate the high-energy Regge contribution to the Drell-Hearn-Gerasimov sum-rule.Comment: 19 pages, LaTeX, 3 figures generated as g1,g1F2 and A1.te

A program to evaluate dye lasers as high power, pulsed, visible light sources

Spectral emission of visible from Q switched dye laser

The Drell-Hearn-Gerasimov Sum-Rule at Polarized HERA

We discuss the potential of polarized HERA to measure the spin dependent part of the total photoproduction cross-section at large $\sqrt{s_{\gamma p}}$.Comment: 7 pages, LaTeX, 1 figure generated as fig1.tex. To appear in Proc. Workshop on ``Physics with Polarized Protons at HERA'

“Resistance is our Culture”: An Archival Exploration of Oromo Diaspora Organizing

The Oromo people of the Horn of Africa have been engaged in a struggle for liberation and justice since their colonization by the Abyssinian Empire in the 1880s. Despite, beyond, and against this discursive violence, Oromo people have been creating liberatory spaces and alternative stories of Oromo life. In this article I explore resistance writing and organizational materials created by members of the Oromo diaspora in the 1970s and 1980s. This archival collection, housed in Berlin, Germany, shares a story of transnational solidarity. It also demonstrates the power of the archive itself as an active participant in documenting, remembering, and supporting the Oromo struggle

The Impact of a Clinical Faculty Institute on Participants\u27 Skills for Mentoring Novice Teachers, Grades K-8

A seven-day Clinical Faculty Institute was implemented to increase the skills of mentor teachers and to develop a cadre of Clinical Faculty for the four participating colleges and universities. The 128 participants entered with some confidence in their ability to mentor novice teachers in areas typically taught in methods courses; whereas, they displayed minimal confidence in skills typically taught in supervisory courses. By the end of the Institute, participants showed significant changes in their self-perceptions of skills in twenty areas, with post-scores clustering between 3.5 and 3.9 on a four-point scale. Future institutes should focus on supervisory skills and then emphasize more reflection upon the congruence of teaching, with the best practices articulated in national standards