منابع مشابه
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Some animals have evolved the use of environmental materials as "portable armour" against natural enemies. Portable bags that bagworm larvae (Lepidoptera: Psychidae) construct using their own silk and plant parts are generally believed to play an important role as a physical barrier against natural enemies. However, no experimental studies have tested the importance of bags as portable armour a...
متن کاملEpidemiological surveillance and control of rubella in Singapore, 1991-2007.
INTRODUCTION We reviewed the epidemiological features of rubella in Singapore and the impact of the national immunisation programme in raising the population herd immunity against rubella, with special reference to females in the reproductive age group, and in the elimination of congenital rubella syndrome (CRS). MATERIALS AND METHODS Epidemiological data on all reported cases of rubella and ...
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With reasonable definitions, optimal control is possr%le for both classical and quanta1 systems with new -approaches called PISC(Paralle1) and NISC(Neura1) from analogy with RISC(Reduced Instruction Set Computing). If control equals interaction, observation and comparison to some figure of merit with interaction via external fields, then optimization comes from varying these fields to give desi...
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ژورنال
عنوان ژورنال: Arthropod Management Tests
سال: 1995
ISSN: 2155-9856
DOI: 10.1093/amt/20.1.317b