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Social Hymenoptera show two contrasting strategies of colony reproduction. A reproductive female can raise the first generation of brood alone (independent foundation), or a colony can divide into… Expand
Proceedings of the Royal Society of London…
For more than 20 years, sex allocation in hymenopteran societies has been a major topic in insect sociobiology. A recurring idea was that relatedness asymmetries arising from their haplodiploid sex… Expand
Monodispersed PLGA microspheres containing rifampicin (RFP) have been prepared by solvent evaporation method using a Shirasu porous glass (SPG) membrane. The microspheres were spherical and their… Expand
Foraging strategy of ant workers has been studied from several aspects, however, the mode of prey retrieval and factors affecting it have been rarely studied to date, even thought it is an important… Expand
Queen behaviour of Leptothorax acervorum collected in northern Japan was observed in four functionally monogynous colonies (one functional mated egg-laying queen with some supernumerary mated but… Expand
Ant fauna was investigated in the Bogor Botanic Garden (Kebun Raya Bogor), West Java, Indonesia, by the following sampling methods: (1) collection of ants on tree trunks, (2) collection of litter… Expand
Trillium tschonoskii Maxim. is a myrmecochorous perennial herb which grows in single-species stands in the cool temperate broad-leaved deciduous woodland of Hokkaido, northern Japan. Its many-seeded… Expand
Five nests of Myrmecia froggatti were dug out in the dry Eucalyptus woodland around Mt. Gournet, Queensland, northern Australia. Nest structure was simple; a single, vertical unbranched shaft that… Expand
The behavior of the queen and workers in the amblyoponine ant Prionopelta kraepelini was observed and compared with th at of the queen and workers of P. amabilis. The queen fed mainly on larval… Expand
Journal of controlled release : official journal…
We examined the phagocytic activities of alveolar macrophages (NR8383 cells) toward poly(lactic-co-glycolic) acid (PLGA) microspheres (MS) loaded with the anti-tuberculosis agent rifampicin (RFP),… Expand