Results 71 to 80 of about 2,736,643 (134)

Root of unity symmetries in the 8 and 6 vertex models [PDF]

open access: yesarXiv, 2004
We review the recently discovered symmetries of the 8 and 6 vertex models which exist at roots of unity and present their relation with representation theory of affine Lie algebras, Drinfeld polynomials and Bethe vectors.
arxiv  

IMMUNOSUPPRESSION IN BROILERS EXPOSED TO INCREASED TEMPERATURE [PDF]

open access: yesJournal of Veterinary and Animal Sciences, 1998
Effect of prolonged and intermittent exposure to increased atmospheric temperature on the immune responses was studiedexperimentally in 154 broilers. It was observed that 40 ± 1 ° C for 29 days, 12 h.
S.J. Jamadar   +4 more
doaj  

The Eight Vertex Model.New results [PDF]

open access: yesarXiv, 2006
Whereas the tools to determine the eigenvalues of the eight-vertex transfer matrix T are well known there has been until recently incomplete knowledge about the eigenvectors of T. We describe the construction of eigenvectors of T corresponding to degenerate eigenvalues and discuss the related hidden elliptic symmetry.
arxiv  

Light microscopic investigations on the embryonic development of chicken bursa fabricii [PDF]

open access: yesEurasian Journal of Veterinary Sciences
In this study embryonic development of Chicken Bursa Fabricii (Avian cloacal bursa) was investigated by light microscopy. For this purpose 1 50 fertilised eggs of a domestic hybrid line, GXSX were used as a material. From 6th to 17 th days of hatching, 5
Nazlı Kocaöz   +2 more
doaj  

Growth of White Leghorn Chicken Immune Organs after Long-Term Divergent Selection for High or Low Antibody Response to Sheep Red Blood Cells

open access: yesAnimals
Long-term divergent selection from a common founder population for a single trait—antibody response to sheep erythrocytes 5 days post-injection—has resulted in two distinct lines of White Leghorn chickens with a well-documented difference in antibody ...
Christa F. Honaker   +3 more
doaj   +1 more source

The sl_2 loop algebra symmetry of the six-vertex model at roots of unity [PDF]

open access: yesJ.Statist.Phys. 102 (2001) 701-736, 1999
We demonstrate that the six vertex model (XXZ spin chain) with $\Delta=(q+q^{-1})/2$ and $q^{2N}=1$ has an invariance under the loop algebra of $sl_2$ which produces a special set of degenerate eigenvalues.
arxiv  

New Developments in the Eight Vertex Model [PDF]

open access: yesJ.Statist.Phys. 111 (2003) 323, 2002
We demonstrate that the Q matrix introduced in Baxter's 1972 solution of the eight vertex model has some eigenvectors which are not eigenvectors of the spin reflection operator and conjecture a new functional equation for Q(v) which both contains the Bethe equation that gives the eigenvalues of the transfer matrix and computes the degeneracies of these
arxiv  

Effects of in ovo administrated testosterone propionate at early embryonic period on chicken bursa fabricii [PDF]

open access: yesEurasian Journal of Veterinary Sciences
The aim of this study was to investigate the effects of in ovo administrated testosterone propionate (TP) on the embryonic development of bursa of Fabricius and also to determine the histological changes occuring at post-hathcing period.
Hasan Hüseyin Dönmez, İlhami Çelik
doaj  

Functional Equations and Fusion Matrices for the Eight Vertex Model [PDF]

open access: yesPubl.Res.Inst.Math.Sci.Kyoto 40:905-932,2004, 2003
We derive sets of functional equations for the eight vertex model by exploiting an analogy with the functional equations of the chiral Potts model. From these equations we show that the fusion matrices have special reductions at certain roots of unity.
arxiv  

Influence of Selenium on the Morphology of Immune System Organs in Healthy Broilers

open access: yesActa Veterinaria, 2019
This study aimed to establish the effect of dietary supplementation in broiler chickens of organic and inorganic selenium on the weight and structure of the thymus, bursa of Fabricius and spleen. Three dietary regimes were studied in Flex and F15 Hubbard
Korzeniowska Malgorzata   +3 more
doaj   +1 more source

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