45,240 research outputs found

    War Gender and Dancing: Gettysburg College and the USO During World War II

    Full text link
    Made up of women and the men who could not join the military, the home front was more than just victory gardens and factory jobs. Although factory work was seen as a way for women both to help the war effort and at the same time gain some independence outside the home, not every woman was ready to hang up her dress and start donning pants full time. There was a middle ground where women were able to break traditional feminine roles yet still keep their dresses and serve the servicemen fighting the war between victory gardens and factory jobs; a balance was found in volunteer organizations designed to serve the military. The largest and most well-known organization on the home front was the United Services Organization, more commonly referred to as the USO. After the outbreak of World War II, USO canteens start to appear everywhere across the United States in towns and cities alike. Gettysburg, Pennsylvania was one of many towns with their own USO branch. The Gettysburg branch was supported by the female students at Gettysburg College and the Army Air Corps detachment stationed on campus which provided an opportunity for local young women to explore new social roles while supporting the war effort. [excerpt

    Optically induced free carrier light modulator

    Get PDF
    Signal carrier laser beam is optically modulated by a second laser beam of different frequency acting on a free carrier source to which the signal carrier laser is directed. The second laser beam affects the transmission characteristics of the free carrier source to light from the signal carrier laser, thus modulating it

    The Nature of Radio Emission from Distant Galaxies

    Full text link
    I describe an observational program aimed at understanding the radio emission from distant, rapidly evolving galaxy populations. These observations were carried out at 1.4 and 8.5 GHz with the VLA centered on the Hubble Deep Field. Further MERLIN observations of the HDF region at 1.4 GHz provided an angular resolution of 0.2" and when combined with the VLA data produced an image with an unprecedented rms noise of 4 μ\muJy. All radio sources detected in the VLA complete sample are resolved with a median angular size of 1-2". The differential count of the radio sources is marginally sub-Euclidean (γ\gamma = -2.4 ±\pm 0.1) and fluctuation analysis suggests nearly 60 sources per arcmin2^2 are present at the 1 μ\muJy level. A correlation analysis indicates spatial clustering among the 371 radio sources on angular scales of 1- 40 arcmin. Optical identifications are made primarily with bright (I = 22) disk systems composed of irregulars, peculiars, interacting/merging galaxies, and a few isolated field spirals. Available redshifts span the range 0.2 - 3. These clues coupled with the steep spectral index of the 1.4 GHz selected sample are indicative of diffuse synchrotron radiation in distant galactic disks. Thus the evolution in the microjansky radio population is driven principally by star-formation. I have isolated a number of optically faint radio sources (about 25% of the overall sample) which remain unidentified to I = 26-28 in the HDF and flanking optical fields. Several of these objects have extremely red counterparts and constitute a new class of radio sources which are candidate high-z dusty protogalaxies.Comment: dissertation summary to be published in PASP, sucessfully defended on May 19, 1999 at the University of Virginia, committee composed of R. W. O'Connell (UVa), K. I. Kellermann (NRAO), E. B Fomalont (NRAO), T. X. Thuan (UVa), P. Humphreys (UVa), and J. Wall (Oxford

    Method and apparatus for optical modulating a light signal Patent

    Get PDF
    Method and apparatus for optically modulating light or microwave bea

    Hysterisis in Food Safety Investments

    Get PDF
    Concerns regarding the safety and integrity of the fresh produce supply chain are becoming all too common in the media. In 2006, an outbreak of E. coli O157:H7 from farms in Central California sickened almost two hundred people and lead to the deaths of three. Estimated costs to the industry ranged from 100permonthto100 per month to 200 million until spinach sales returned to normal. By some accounts, the spinach industry has yet to recover and may not for years to come. The incident, however, has lead to a host of initiatives from industry officials, legislators and fresh produce retailers to ensure the safety of fresh produce. The necessary technology and best practices knowledge exists, yet some growers have not made the investment required to ensure that such outbreaks do not happen again in the future.Agribusiness, Agricultural and Food Policy, Farm Management, Food Consumption/Nutrition/Food Safety, Industrial Organization,
    corecore