Development and evaluation of infrared sensitive image sensors for space astronomy

The experimental development and evaluation of infrared vidicons for use in solving high precision high flux broadband astronomical problems are discussed. Data cover the EOS, silicon, and doped germanium vidicons. Results are graphed and problems encountered using the vidicons in electrical cameras are reported

Honeylocust Twig-gall Midge (Diptera: Cecidomyiidae) in Michigan

Emergence and oviposition data were gathered for Neolasioptera brevis, a recently described pest of honeylocust. In 1984 the insects first emerged on 21 May and first oviposited on 4 June; in 1985 they first emerged on 28 April and first oviposited between 5-20 May. Average raceme length at emergence and at oviposition were 2.7 and 4.4 cm in 1984 and 2.6 and 4.8 cm in 1985. Approximate duration of the emergence period was one week. In 1985 observed oviposition wounds averaged 0.5/cm

‘Maturing Out’ as dilemmatic: Transitions towards relatively light drinking practices among UK University students

Objectives University students in the UK engage in relatively high alcohol consumption levels, yet young adults, including students, now drink less than previously and abstain more. Against this cultural backdrop, our objective was to further understanding of ‘maturing out’ of excessive drinking practices among students by focusing on drinking transitions that had taken place during university years. Design A qualitative interview study. Methods Semi‐structured interviews were conducted with ten 18‐ to 27‐year‐old UK undergraduate university students who self‐identified as light or non‐drinkers. Interviews were audio‐recorded, and anonymized interview transcripts were subjected to an experience‐focused application of thematic analysis. Results Participants reported dilemmas involved in transitions from relatively high to low levels of alcohol consumption. One dilemma was characterized by managing to drink less (or nothing) without cutting off social options with university friends/peers. A second dilemma concerned not wishing to fully abandon the pleasures and increased social confidence that alcohol consumption could afford. Results also demonstrated that self‐reported drinking could contradict participants’ self‐defined ‘light drinker’ status. Conclusions This study reinforces the view that ‘maturing out’ involves more than simply having gained new responsibilities during young adulthood. Recognition of these dilemmatic features of drinking transitions could be drawn on in novel campus‐based interventions. Such interventions may help strengthen realistic and sustainable moderate drinking by guiding students to anticipate potential difficulties involved in planned reductions in personal drinking but may also help foster students’ ability to view drinking choices as in transition rather than as permanent and enduring

Velocity dispersions in galaxies: 1: The SO galaxy NGC 7332

A Coude spectrum of the SO galaxy NGC 7332 with 0.9 A resolution from 4186 to 4364 A was obtained with the SEC vidicon television camera and the Hale telescope. Comparisons with spectra of G and K giant stars, numerically broadened for various Maxwellian velocity distributions, give a dispersion velocity in the line of sight of 160 + or - 20 km/sec with the best fit at G8III. The dispersion appears to be constant within + or - 35 km/sec out to 1.4 kpc (H = 100 km/sec/mpc). After correction for projection, the rotation curve has a slope of 0.16 km/sec/pc at the center and a velocity of 130 km/sec at 1.4 kpc where it is still increasing. For an estimated effective radius of 3.5 kpc enclosing half the light, the virial theorem gives a mass of 1.4 x 10 to the 11th power solar masses if the mass-to-light ratio is constant throughout the galaxy. The photographic luminosity is 8.3 x 10 to the 9th power solar luminosities so that the M/L ratio is 17

Cooperation and conflict: a case study in harmony and discord in Cleveland County, Oklahoma, 1889-1959

Thesis (M.A.)--University of Oklahoma