511 research outputs found
The Joint Educational Consortium and The Hot Springs Arts Center Presents The Hot Springs-Arkadelphia Chamber Orchestra and Bach Chorus
This is the concert program of The Joint Educational Consortium and The Hot Springs Arts Center Presents The Hot Springs-Arkadelphia Chamber Orchestra and Bach Chorus, directed by James Arthur Smith and Charles S. Rye, choral director. The concert was held on May 6, 1990, at St. Luke\u27s Episcopal Church in Hot Springs, Arkansas, and on May 7, 1990, in OBU\u27s Mabee Fine Arts Recital Hall
Photo- and Electroproduction of Eta Mesons
Eta photo- and electroproduction off the nucleon is investigated in an
effective lagrangian approach that contains Born terms and both vector meson
and nucleon resonance contributions. In particular, we review and develop the
formalism for coincidence experiments with polarization degrees of freedom. The
different response functions appearing in single and double polarization
experiments have been studied. We will present calculations for structure
functions and kinematical conditions that are most sensitive to details of the
lagrangian, in particular with regard to contributions of nucleon resonances
beyond the dominant (1535) resonance.Comment: 24 pages RevTeX/LaTeX2.09, NFSS1, 13 figures (in separate file
(tar,gzip and uue)), accepted for publication in Z. Phys.
Representations of the family in postwar British amateur film: family histories in the Lane and Scrutton collection at the East Anglian Film Archive
This article examines the construction of the postwar British family in amateur film with reference to the Sidney Lane and Cecil Scrutton collection held at the East Anglian Film Archive (EAFA), particularly the films covering 1948 – 1961. Heather Norris Nicholson argues that home movies contribute to 'an understanding of leisure and visual-related practices of consumption as well as the social processes by which people came to give themselves, and others, identities' in the mid-twentieth century (Nicholson, 2004, p. 323). By considering the social and historical contexts in which these home movies were produced, and using accompanying notes by one of the filmmaker’s sons, the leisure time films of Lane and Scrutton can be analysed in order to understand how the amateur cine hobby ideologically constructed family, community and national identity in postwar Britain. The images of Christmas parties, daytrips and holidays in these films reveal much about this particular family, and are therefore very illuminating to the social historian and film scholar of today
Photo- and Electron-Production of Mesons on Nucleons and Nuclei
In these lectures I will show some results obtained with the chiral unitary
approach applied to the photo and electroproduction of mesons. The results for
photoproduction of and , together with
related reactions will be shown, having with common denominator the excitation
of the resonance which is one of those dynamically generated in
the chiral unitary approach. Then I will show results obtained for the reaction which reproduce the bulk of the data except for a
pronounced peak, giving support to a new mesonic resonance, X(2175). Results
will also be shown for the electromagnetic form factors of the
resonance, also dynamically generated in this approach. Finally, I will show
some results on the photoproduction of the in nuclei, showing that
present experimental results claiming a shift of the mass in the
medium are tied to a particular choice of background and are not conclusive.
One the other hand, the same experimental results show unambiguously a huge
increase of the width in the nuclear medium.Comment: Lecture at the "International School of Nuclear Physics", 29th Course
Quarks in Hadrons and Nuclei, Erice, Italy, September 2007. Note added in
Proofs concerning the mixed events technique and other comments on omega
productio
The Concentration of Affluence in the United States, 1990
The author examines the concentration of affluent households in affluent neighborhoods in U.S. metropolitan areas in 1990. The rate of concentrated affluence, the percentage of affluent households living in affluent neighborhoods, is considered for the total population and separately for blacks and whites. Also, differences in the rate of concentrated affluence between blacks and whites are explored. Models of concentrated affluence that incorporate variables suggested by the literature on economic restructuring in the late twentieth century and by the literature on racial differences in the residential return to individual resources are developed and tested. In general, variables measuring industry/occupation employment mix influence the rate of concentrated affluence mainly through the levels of income they generate. Racial differences in the rate of concentrated affluence are influenced more by income differences between blacks and whites than by residential segregation.Yeshttps://us.sagepub.com/en-us/nam/manuscript-submission-guideline
meson photoproduction on proton
The cross section is estimated for the invariant mass
distribution in the reaction in the GeV region. This reaction is
assumed to proceed through the formation of the meson in the
intermediate state, since the production cross section for this meson in the
reaction in GeV region is significant and it has large branching
ratio (88.8%) in the channel. The cross sections for this
reaction have been calculated using the energy dependent reaction amplitude,
i.e., , extracted from the latest meson
photoproduction data. We use established procedure to calculate other factors,
like width and propagator of the meson, so that our calculation can
provide reliable cross section. The calculated results reproduce the measured
invariant mass distribution spectra in the
reaction.Comment: 13 pages, 5 figure
Baryon Resonances in the Double Pion Channel at Jefferson Lab (CEBAF): Experimental and Physical Analysis Status and Perspectives
Decay of light quark excited baryons in the double pion channel is discussed, as a particular way of investigating poorly know baryon resonances and searching for "missing states" predicted by quark models. A possible approach to the data analysis is discussed and some preliminary data from the CLAS collaboration at Jefferson Laboratory are presented
The role of rewards and demands in burnout among surgical nurses
Job rewards have both, an intrinsic and an extrinsic motivational potential, and lead to employees’ development
as well as help them to achieve work goals. Rewards can balance job demands and protect from burnout. Due to changes on
the labour market, new studies are needed. The aim of our study was to examine the role of demands and individual rewards
(and their absence) in burnout among surgical nurses. Materials and Methods: The study was conducted in 2009 and 2010
with 263 nurses who worked in surgical wards and clinics in hospitals in Southern Poland. The hypotheses were tested by
the use of measures of demands and rewards (Effort-Reward Imbalance Questionnaire by Siegrist) and burnout syndrome
(Maslach Burnout Inventory). A cross-sectional, correlational study design was applied. Results: Nurses experienced the
largest deficiencies in salary and prestige. Exhaustion was explained by stronger demands and lack of respect (large effect).
Depersonalization was explained by stronger demands, lack of respect and greater job security (medium effect). Reduced
personal achievement was explained by more demands and greater job security (small effect). Conclusions: Excessive demands and lack of esteem are key reasons for burnout among surgical nurses. Job security can increase burnout when too
many resources are invested and career opportunities do not appear. These results may help to improve human resource
management in the healthcare sector
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