Assessment of newly developed coatings merely by the means of laboratory methods, which define the main properties of the coating such as hardness, composition or friction parameters, is nowadays far from being sufficient. The gained information is often irrelevant with the real performance of the coatings during the machining. Since it is necessary to secure systematicness and repeatability of the results also the ''field test'' directly at customers can be excluded. Inevitable complement to both mentioned methods is thus laboratory testing of the coating impact on the cutting process. The main goal of the cooperation of SHM and VCSVTT was to set up a functional methodology for efficient testing of protective coatings on milling tools. and Posuzování nově vyvíjených povlaků pouze laboratorními metodami, které určí hlavní vlastnosti povlaku jako je tvrdost, složení nebo frikční parametry, je dnes nedostatečné. Získané informace jsou totiž mnohdy nerelevantní se skutečnými výkony povlaků při obrábění. Jelikož je třeba zajistit systematičnost a opakovatelnost výsledků, je možné vyloučit i tzv. ''terénní zkoušky'' přímo u zákazníků. Nezbytným doplňkem obou uvedených postupů je proto laboratorní testování vlivu povlaku na řezný proces. Hlavním cílem spolupráce firmy SHM Šumperk a Výzkumného centra pro strojírenskou výrobní techniku a technologii (VCSVTT) bylo vytvoření funkční metodiky pro efektivní testování ochranných povlaků frézovacích nástrojů.
Caryospora duszynskii Upton, Current et Barnard, 1984 was successfully transmitted to snakes of the genus Elaphe by feeding them previously infected mice. Fifty thousand oocysts were orally administered to two mouse strains, BALB/c and Crl:CD-1(ICR)BR, which were subsequently fed to captive-born coccidia-free Elaphe guttata (L.) in two respective independent experiments. Both E. guttata expelled C. duszynskii oocysts in their faeces, beginning on day 18 and 26 post infection (p.i.) and shed oocysts continuously through the end of the experiment, day 230 and 135 p.i., respectively. There were no parasitic stages or lesions in mice, as revealed by histological examination. Experiments proved that rodents serve as paratenic hosts for C. duszynskii. In summary we discuss the life-cycle strategies of Caryospora spp. in reptiles and present three general modes of their development.
Sciadicleithrum meekii sp. n. is described from the gills of the cichlid fish Cichlasoma meeki (Brind) from cenotes (= sinkholes) of the Yucatan Peninsula, Mcxico.The new species differs from congeners by having a dorsal hamuli with a prominent superficial root articulated with a straight shaft and curved point, and a vagina with a coiled tube comprised of one ring.