1,878 research outputs found
An Alternative Construction of the Quantum Action for Supergravity
We develop a method to derive the on-shell invariant quantum action of the
supergravity in such a way that the quartic ghost interaction term is explicity
determined. First, we reinvestigate the simple supergravity in terms of a
principal superfibre bundle. This gives rise to the closed geometrical BRST
algebra. Therefore we determine the open BRST algebra, which realizes the
invariance of the classical action. Then, given a prescription to build the
full quantum action, we obtain the quantum BRST algebra. Together with the
constructed quantum action this allows us to recover the auxiliary fields and
the invariant extension of the classical action.Comment: 17 pages, No figure
EFFECT OF CALVING INTERVAL ON MILK YIELD IN JERSEY COWS UNDER CONDITIONS OF SMALL FAMILY FARMS IN ALBANIA
Effect of calving interval on 305 day milk yield for first three lactations was studied in order to increase efficiency of selection schemes and to more efficiently manage Jersey cows that have been raised on small scale family farms in Albania. Results obtained by processing data of 1476 cows, managed in 935 small scale family farms, pointed out that current calving interval significantly affects on milk production for first three lactations (p<0.05). Preceding calving interval affected 305 day milk yield (p<0.05) in second lactation only. Linear regression model accounted for 20-25 % of the total variance of 305 day milk yield. Extension of calving interval over 420, 430, 450 days for first, second and third lactations respectively, did not increase milk production when converted to 305 day lactation. Stochastic relations between calving interval and calving age and month are moderated. Values of Pierson’s correlation coefficients ranged 0.38 to 0.69. Adjustment of milk production in order to reduce effect of calving interval on total phenotypic variance of milk yield is valid for first lactation only. Adjustment of 305 day milk yield for second and third lactations in order to reduce effects of factors “calving age and month” brings about, at the same time, elimination of calving interval effect
Off-shell BRST-VSUSY superalgebra for D=4 BF theories in the superconnection formalism
We propose the superconnection formalism to construct the off-shell
BRST-VSUSY superalgebra for D=4 BF theories. The method is based on the natural
introduction of physical fields as well as auxiliary fields via
superconnections and their associated supercurvatures defined on a superspace.
We also give a prescription to build the off-shell BRST-VSUSY exact quantum
action.Comment: Latex, 13 pages, no figures, comments and references adde
PRODUCT INGREDIENTS - ADVERTISING LABELING
The higher standard of life has also raised the market demand for variety of products while impacting the producers’ behavior in regards to marketing. One of the ways the producers offer and present to customers their products is through label advertising. Raised awareness among customers has made possible the demand for higher quality products, but are higher quality products being offered to citizens? This research has analyzed the food legislative framework, food product samples were analyzed, few local and international food shops were visited, and one to one interviews were conducted with consumers. Based on the results of the research, much remains to be desired from what is offered to the citizens by the producers, in the advertising label products they put tempting pictures for the consumer to buy the product, but not the true makeup of the product
On Auxiliary Fields in BF Theories
We discuss the structure of auxiliary fields for non-Abelian BF theories in
arbitrary dimensions. By modifying the classical BRST operator, we build the
on-shell invariant complete quantum action. Therefore, we introduce the
auxiliary fields which close the BRST algebra and lead to the invariant
extension of the classical action.Comment: 7 pages, minor changes, typos in equations corrected and
acknowledgements adde
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