45,240 research outputs found
War Gender and Dancing: Gettysburg College and the USO During World War II
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
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
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 Jy. 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 ( =
-2.4 0.1) and fluctuation analysis suggests nearly 60 sources per
arcmin are present at the 1 Jy 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
Method and apparatus for optically modulating light or microwave bea
Hysterisis in Food Safety Investments
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 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,
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