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301.
In the experiments to be described two congenic inbred lines CB and CC and two recombinant lines CB.R1 and CC.R1 were used. All four lines differ only in regard to the major histocompatibility complex (MHC). To determine the percentage distributions of the two cell subsets in peripheral blood lymphocytes (PBL) in these lines, monoclonal antibodies to these two antigens were used. By FACScan there were more CD4+PBL in CB and CB.R1 lines (share B-F/B-L region, controlling class I/class II antigens with line CB) than CC and CC.R1, while the reverse was true with CD8+ subsets. There were more CD8+ PBL in the CC and CC.R1 lines and less in CB and CB.R1 lines. The ratio of CD4+ to CD8+ in CB chickens was 3.4 +/- 0.2 and in CC chickens 1.6 +/- 0.1. 相似文献
302.
303.
Alessandra Mascaro Massimo Farina Raffaella Gigli Carlo E Vitelli Lucio Fortunato 《World journal of surgical oncology》2010,8(1):1-17
A tremendous improvement in every aspect of breast cancer management has occurred in the last two decades. Surgeons, once solely interested in the extipartion of the primary tumor, are now faced with the need to incorporate a great deal of information, and to manage increasingly complex tasks. As a comprehensive assessment of all aspects of breast cancer care is beyond the scope of the present paper, the current review will point out some of these innovations, evidence some controversies, and stress the need for the surgeon to specialize in the various aspects of treatment and to be integrated into the multisciplinary breast unit team. 相似文献
304.
N Marques S C Afeche A A Benedito-Silva J Cipolla-Neto G Fortunato L A Paludetti E G Recine C Schott L S Menna-Barreto 《Chronobiologia》1988,15(3):235-241
We describe the didactic experience of graduate and post-graduate courses on chronobiology in S?o Paulo, Brazil. 相似文献
305.
Galactia dimorphophylla, a new species from northeastern Argentina and northern Uruguay, is described and illustrated. This new species is assigned
to sect. Odonia. A table distinguishing it from similar species in Southern South America is presented, and its relationships and distinguishing
characters including karyological features are discussed. 相似文献
306.
A dimension-reduced approach to space-time Kalman filtering 总被引:10,自引:0,他引:10
307.
Significant amounts of wealth have been exchanged as part of marriage settlements throughout history. Although various models
have been proposed for interpreting these practices, their development over time has not been investigated systematically.
In this paper we use a Bayesian MCMC phylogenetic comparative approach to reconstruct the evolution of two forms of wealth
transfers at marriage, dowry and bridewealth, for 51 Indo-European cultural groups. Results indicate that dowry is more likely
to have been the ancestral practice, and that a minimum of four changes to bridewealth is necessary to explain the observed
distribution of the two states across the cultural groups.
A preliminary version of this paper was presented at the 16th meeting of the Human Behavior and Evolution Society (HBES), Berlin 2004. Mark Pagel and Andrew Meade provided the software,
the coded linguistic data, and valuable advice on their use. LF is funded by Fondazione Ing. Aldo Gini (Italy), the ESRC (UK),
and the UCL Graduate School (UK). Five anonymous reviewers provided helpful comments.
The authors are based at the Department of Anthropology of UCL and members of the AHRC Centre for the Evolutionary Analysis
of Cultural Behaviour (CEACB). LF is studying towards a PhD, CH is a CEACB Senior Research Fellow, and RM is Professor of
Evolutionary Anthropology. 相似文献