A new hair follicle mite species, Apodemodex cumulus, is described from female and male specimens collected from the muzzle, lower jaw and vertex of Mediterranean water shrews, Neomys anomalus Cabrera taken in South Bohemia, Czech Republic. A new, at present monotypie genus Apodemodex is erected for this mite species. Diagnostic for the new genus are the morphology of the gnathosoma (the characters including conspicuous continuous arched antero-lateral contours of massive ventral face) and the morphology of the leg claws, which are deeply bifurcate and without spur.
The effect of repeated infestations of BALB/c mice with Ixodes ricinus (L.) nymphs on tick borne encephalitis (TBE) virus infection was studied. Enhancement of nymphal feeding, occurring in noninfected mice during the quaternary infestations, was less apparent or absent in female nymphs engorged on TBE virus infected mice. The mice infected with TBE virus during quaternary tick infestation survived significantly longer (P < 0.01) than mice infected with TBE virus during the primary tick infestation. The mean titre of virus in murine blood (determined by plaque assay) was significantly lower (P < 0.01) and the number of nymphs acquiring virus was reduced (P < 0.05) when feeding on hosts infected during the quaternary infestation. The results indicate that repeated infestations of I. ricinus nymphs on BALB/c mice, although enhancing tick feeding, reduced infection with TBE virus when inoculated intraperitoneally.
The article is directed to the nanophotonics dealing with optical, electrooptical and optoelectrical phenomena under standpoint of photons and photon flows and their control in nanomaterials and optical and electronical nanosystems. It deals with relationship between the electromagnetic (photonic) radiation and plasmons which mutual conversions belong to fundamental phenomena of the plasmon nanophotonics, together with propagation and detection of plasmons. After linearized mathematical reprezentation of plasmons, the article presents examples of two basic concrete methods for effective mutual conversion (coupling) of the optical radiations and surface plasmons in the nanophotonical systém formed by a dielectric-metal interface., Článek je zaměřen k nanofotonice, která obecně studuje optické, elektrooptické a optoelektrické jevy z hlediska fotonů a fotonových proudů a jejich kontrolovaného ovládání v nanomateriálech a optických a elektronických nanosystémech. Týká se vztahu mezi elektromagnetickým (fotonovým) zářením a plazmony, jejichž vzájemné přeměny patří vedle šíření a detekce plazmonů k fundamentálním jevům plazmonové nanofotoniky. Po linearizované matematické reprezentaci plazmonů jsou v článku prezentovány příklady dvou základních konkrétních metod k účinné vzájemné přeměně (vazbě) optických záření a povrchových plazmonů u nanofotonického systému, tvořeného rozhraním mezi dielektrikem a kovem., and Autoři: Jan Hrdý a Jan Hrdý jr.