450 research outputs found
Non-universal behavior for aperiodic interactions within a mean-field approximation
We study the spin-1/2 Ising model on a Bethe lattice in the mean-field limit,
with the interaction constants following two deterministic aperiodic sequences:
Fibonacci or period-doubling ones. New algorithms of sequence generation were
implemented, which were fundamental in obtaining long sequences and, therefore,
precise results. We calculate the exact critical temperature for both
sequences, as well as the critical exponent , and . For
the Fibonacci sequence, the exponents are classical, while for the
period-doubling one they depend on the ratio between the two exchange
constants. The usual relations between critical exponents are satisfied, within
error bars, for the period-doubling sequence. Therefore, we show that
mean-field-like procedures may lead to nonclassical critical exponents.Comment: 6 pages, 7 figures, to be published in Phys. Rev.
The nutritional impact of the Pre-School Health Programme at three clinics in Central Province, Kenya
Contains an account of a study of the effects of the Pre-School Health Programme at three clinics in different ecological zones in Central Province, Kenya. Two groups of mothers were selected for interviewing: recent entrants and longtime participants. The study concentrates on the following aspects: nutritional knowledge; maternal food preferences; food consumption of the children during the previous day; and nutritional status of the children. Conclusion: the strenght of the programme lies in the food distribution rather than in the educational component.ASC – Publicaties niet-programma gebonde
Этиопатогенетические аспекты терапии хронических воспалительных заболеваний органов малого таза
Наведено сучасні принципи лікування запальних захворювань жіночих статевих органів з урахуванням
етіопатогенезу запалення й особливостей продукції у цервікальному слизу запальних і протизапальних
цитокинів. Показано, що включення до комплексу терапії інтерферонів сприяє відновленню порушеного
імунологічного гомеостазу й зниженню ймовірності рецидивів захворювання.Modern principles of treatment of inflammatory diseases of female genitals taking into account an
etiopathogenesis of an inflammation and features of production in сervical mucous inflammatory and antiinflammatory
cytokines are resulted. Including in a complex of therapy of interferons is shown, that, promotes restoration of the
broken immunologic homeostasis and depression of probability of relapses of disease
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