1. This document is HS918, one of a series of the Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Publication date: May 2003. Please visit the EDIS Web site at http://edis.ifas.ufl.edu. 2. Daniel J. Cantliffe, professor and chair, Horticultural Sciences Department; John J. Vansickle, professor, Food an...

Finding influential spreaders of information and disease in networks is an important theoretical problem, and one of considerable recent interest. It has been almost exclusively formulated as a node-ranking problem— methods for identifying influential spreaders rank nodes according to how influential they are. In this work, we show that the ranking approach does not necessarily work: the set of...

KN) name -(1940). We should like to express our gratitude to the CERN Track Chamber Division, and specially to Professor Ch. Peyrou, Dr. R. Armenteros, and Dr. D. E. Plane, for supplying the film and the beam. This work would not have been possible without the encouragement and advices of Dr. R. Barloutaud, and one of us (J.G. ) would like to thank Professor A, Berthelot and Dr. A. Leveque for ...

In the context of two-path convexity, we study the rank, Helly number, Radon number, Caratheodory number, and hull number for multipartite tournaments. We show the maximum Caratheodory number of a multipartite tournament is 3. We then derive tight upper bounds for rank in both general multipartite tournaments and clone-free multipartite tournaments. We show that these same tight upper bounds ho...

abstract: subgroup j avian leukosis virus (alv-j) was isolated in the late 1980s from meat-type chickens in the united kingdom. alv-j with exception of some acute variants, cause myeloid leukosis in meat-type chickens with long incubation period.in this study while the status of avian leukosis virus subgroup j in six different strain of broiler grandparent flocks of iran evaluated, the evaluati...