228 research outputs found
Grading Market Eggs
Mrs. Jones was ordering her morning\u27s groceries. One No. 2 can of early June peas, extra sifted, one peck of Baldwin: apples, U. S. No. 2, one crate of fancy grade navel oranges, mediums, and-oh, yes, a dozen eggs
New England Bears a Leader...
New England,80 years ago, was a country where Puritan farmers fought to scrape a living from hard, rocky soil; where women, bound by the conventions of centuries, were little more than chattels of men; where higher education for women was unheard of, and where pitifully little was known of disease and its causes and practically nothing of the food needs of the body
Mayonnaise or Turtle Soup...
Two years ago I was in the final throes of being a senior. That involves much dashing about to assorted business meetings of doubtful importance, shuddering over practical exams and initiating spinach into the lives of objecting youngsters. I was eventually stamped and filed on the shelf marked Recent Graduates - No Experience
The National School Lunch Program: Background, Trends, and Issues
The National School Lunch Program (NSLP) is the Nation’s second largest food and nutrition assistance program. In 2006, it operated in over 101,000 public and nonprofit private schools and provided over 28 million low-cost or free lunches to children on a typical school day at a Federal cost of $8 billion for the year. This report provides background information on the NSLP, including historical trends and participant characteristics. It also addresses steps being taken to meet challenges facing administrators of the program, including tradeoffs between nutritional quality of foods served, costs, and participation, as well as between program access and program integrity.National School Lunch Program, child nutrition, obesity, food assistance, Agricultural and Food Policy, Health Economics and Policy, Public Economics,
An acoustic analog to the dynamical Casimir effect in a Bose-Einstein condensate
We have realized an acoustic analog to the Dynamical Casimir effect. The
density of a trapped Bose-Einstein condensate is modulated by changing the trap
stiffness. We observe the creation of correlated excitations with equal and
opposite momenta, and show that for a well defined modulation frequency, the
frequency of the excitations is half that of the trap modulation frequency.Comment: Includes supplemental informatio
Adjustment and Achievement of Students Who Received Aid to Dependent Children and Students Who Did Not Receive Aid to Dependent Children, 1962-1963, Newton Junior High School
87 leave
The Iowa Homemaker vol.12, no.9
Mayonnaise or Turtle Soup… By Jean B. Guthrie, ‘31
This Little Pig Went to Market… By Margaret Stover
Diet to Be Fat or to Be Thin… By Ella Gertrude McMullen
Cutting the Cost of College… By Regina Kilde
Sub-Poissonian number differences in four-wave mixing of matter waves
We demonstrate sub-Poissonian number differences in four-wave mixing of
Bose-Einstein condensates of metastable helium. The collision between two
Bose-Einstein condensates produces a scattering halo populated by pairs of
atoms of opposing velocities, which we divide into several symmetric zones. We
show that the atom number difference for opposing zones has sub-Poissonian
noise fluctuations whereas that of nonopposing zones is well described by shot
noise. The atom pairs produced in a dual number state are well adapted to sub
shot-noise interferometry and studies of Einstein-Podolsky-Rosen-type
nonlocality tests.Comment: 4 pages, 3 figure
Spontaneous Four-Wave Mixing of de Broglie Waves: Beyond Optics
We investigate the atom-optical analog of degenerate four-wave mixing of
photons by colliding two Bose-Einstein condensates (BECs) of metastable helium
and measuring the resulting momentum distribution of the scattered atoms with a
time and space resolved detector. For the case of photons, phase matching
conditions completely define the final state of the system, and in the case of
two colliding BECs, simple analogy implies a spherical momentum distribution of
scattered atoms. We find, however, that the final momenta of the scattered
atoms instead lie on an ellipsoid whose radii are smaller than the initial
collision momentum. Numerical and analytical calculations agree well with the
measurements, and reveal the interplay between many-body effects, mean-field
interaction, and the anisotropy of the source condensate
Multilevel drivers of human immunodeficiency virus/acquired immune deficiency syndrome among black Philadelphians: Exploration using community ethnography and geographic information systems
Background: Unequal human immunodeficiency virus (HIV)/acquired immune deficiency syndrome (AIDS) distribution is influenced by certain social and structural contexts that facilitate HIV transmission and concentrate HIV in disease epicenters. Thus, one of the first steps in designing effective community-level HIV/AIDS initiatives is to disentangle the influence of individual, social, and structural factors on HIV risk. Combining ethnographic methodology with geographic information systems mapping can allow for a complex exploration of multilevel factors within communities that facilitate HIV transmission in highly affected areas. Objectives: We present the formative comparative community-based case study findings of an investigation of individual-, social-, and structural-level factors that contribute to the HIV/AIDS epidemic among Black Philadelphians. Methods: Communities were defined using census tracts. The methodology included ethnographic and geographic information systems mapping, observation, informal conversations with residents and business owners, and secondary analyses of census tract-level data in four Philadelphia neighborhoods. Results: Factors such as overcrowding, disadvantage, permeability in community boundaries, and availability and accessibility of health-related resources varied significantly. Furthermore, HIV/AIDS trended with social and structural inequities above and beyond the community's racial composition. Discussion: This study was a first step to disentangle relationships between community-level factors and potential risk for HIV in an HIV epicenter. The findings also highlight stark sociodemographic differences within and across racial groups and further substantiate the need for comprehensive, community-level HIV prevention interventions. These findings from targeted U.S. urban communities have potential applicability for examining the distribution of HIV/AIDS in broader national and international geosocial contexts
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