BACKGROUND Numerous surveys reveal high levels of pesticide residue contamination in honey bee comb. We conducted studies to examine possible direct and indirect effects of pesticide exposure from contaminated brood comb on developing worker bees and adult worker lifespan. METHODOLOGY/PRINCIPAL FINDINGS Worker bees were reared in brood comb containing high levels of known pesticide residues (...

Colonies of honeybees, Apis mellifera, initiate new comb construction only when two conditions are met: (1) they are currently collecting nectar and (2) they have filled their available comb beyond a threshold level with brood and food. In this study I explored how the individual workers responsible for building might use readily accessible local cues to acquire this global information on colon...

We demonstrate self-seeded generation of a broadband comb in a highly nonlinear fiber resonator. When pumped with a cw laser, the fiber cavity generates a comb with two characteristic spacings. Hyperparametric modes spaced by approximately 2 THz create the base structure of the comb, while commensurate Brillouin modes spaced by approximately 10 GHz populate the intermediate frequency gaps. The ...

colorectal cancer is the second leading cause of cancer death worldwide. through risk assessment of malignancy in polyps, screening programs can achieve the best results. this study aimed to determine the association between the grade of dysplasia and the location of colorectal polyps. 240 colorectal adenomatous polyps which were referred to department of pathology at rasoul-e-akram hospital be...

The genera Odontacolus Kieffer and Cyphacolus Priesner are among the most distinctive platygastroid wasps because of their laterally compressed metasomal horn; however, their generic status has remained unclear. We present a morphological phylogenetic analysis comprising all 38 Old World and four Neotropical Odontacolus species and 13 Cyphacolus species, which demonstrates that the latter is mo...

lnstitut fur Meereskunde an der Universitat Kiel, Abteilung Marine Mikrobiologie, Dusternbrooker Weg 20, D-24105 Kiel, Germany Sequences of the 16s rDNA from all available type strains of Chromatium species have been determined and were compared to those of other Chromatiaceae, a few selected Ectothiorhodospiraceae and Escherichia coli. The clear separation of Ectothiorhodospiraceae and Chromat...

Three myrmecophilous genera of Aleocharinae (Staphylinidae) associated with Leptogenys distinguenda (Emery, 1887) and Leptogenys mutabilis (Smith, 1861) are reviewed with descriptions of new taxa: Maschwitzia Kistner, 1989, Togpelenys Kistner, 1989 and Witteia Maruyama & von Beeren, gen. n. (type species: Witteia dentilabrumMaruyama & von Beeren, sp. n.). The following new combinations are prop...

Pacificulla Park, gen. nov. related to Crocanthes Meyrick is described from New Guinea, based on the type species P. flaviagra Park, sp. nov. Five additional species are described: P. esdiparki Park, sp. nov., P. searsi Park, sp. nov., P. callisomata Park, sp. nov., P. cervicalis Park, sp. nov., and P. kekamatana Park, sp. nov. The following six new combinations are proposed, the species of whi...

A new genus of the spider subfamily Coelotinae, Sinocoelotes gen. n., with nine new species, is described from Yunnan and Sichuan Provinces in southern China. The new species are: Sinocoelotes cangshanensis sp. n. (♀), Sinocoelotes hehuaensis sp. n. (♂♀), Sinocoelotes luoshuiensis sp. n. (♀), Sinocoelotes mangbangensis sp. n. (♀) from Yunnan; Sinocoelotes kangdingensis sp. n. (♀), Sinocoelotes ...

Ten genera of Physoderina from the Oriental Region are diagnosed and described, and twenty six species representing eight genera (Paraphaea Bates, Anchista Nietner, Metallanchista gen. n., Diamella nom. n., Allocota Motschulsky, Orionella Jedlička, Endynomena Chaudoir and Dasiosoma Britton (Oriental species only)) are revised. Keys to genera and species are provided, along with distribution map...