This contribution deals with lab-on-chip technology, which emerged during past years between imaging methods. Diffractive field according to Lorenz-Mie-Debye theory is created by light irradiating the sample positioned near digital sensor. The diffracted wave interferes with the incident wave and creates a digital hologram from which the amplitude and phase fields are subsequently reconstructed. Main advantages of this technology are the simplicity and compactness of the system with low weight and dimension. These properties allow big reduction in price compared to the methods which use optical elements and also the possibility for creating a device useable not only in specialized laboratories but even outside. Furthermore this method achieves submicron resolution in wide field of view. and Tento příspěvek se zabývá technologií lab-on-chip, jež v posledních letech vstupuje na pole zobrazovacích metod. Vzorek umístěný blízko digitálního senzoru, na který dopadá světelná vlna, vytváří difrakční pole podle teorie Lorenz-Mie-Debye. Difraktovaná vlna interferuje s dopadající vlnou a vytváří digitální hologram, z kterého je následně zrekonstruováno amplitudové i fázové pole. Hlavními výhodami lab-on-chip jsou jednoduchost a kompaktnost systému s nízkou hmotností a rozměrem. Tyto vlastnosti umožňují velké snížení ceny v porovnání s metodami využívajícími optické elementy a možnost tvorby skladného zařízení použitelného i mimo specializované laboratoře. Metoda dále dosahuje submikronového laterálního rozlišení v širokém zorném poli.
Lasiotocus lizae sp. n. (Digenea: Monorchiidae) was collected from the intestine of Liza carinata (Valenciennes) (Mugilidae, Perciformes) in the Taiwan Straits, China. L. lizae is most similar to Lasiotocus glebulentus Overstreet, 1971 from the intestine of Mugil cephalus from the Northern Gulf of Mexico in having tightly compacted vitellaria, a genital pore sinistral to the midline, the ovary usually dextral to the acetabulum, the similar sucker ratio, and in the presence of both a canalicular and uterine seminal receptacle. It differs from L. glebulentus in its cirrus sac ending anterior to rather than posterior to acetabulum, in the ending position of caeca, in smaller eggs, and in having a single rather than several conspicuous concretions in excretory vesicle.
Heritage preservation is one of the fields where the results of the ethnological studies may be applied. The professional goals of Czech ethnographers include above all the documentation, but at the same time the care of monuments. It implies systematic field work: research, written as well as photographic documentation, registration, comparative studies. Classification of the detected artifacts of vernacular architecture is only one aspect of the professional ethnographic work in the institutes of heritage preservation. Close cooperation of researchers in those institutes with universities and museums, especially with the regional ones, may be considered as relatively successful.
The videos, DVDs and CDs dealing with vernacular architecture technology and with the traditional procedures in the building trade are an extraordinary evidence of this symbiosis. From the point of view of the monument preservation, those films are drawn up as documentary films, however, the individual building operations are demonstrated herein. Screenplays of those films were elaborated with regard to the participation of the museum experts. the synergy of the ethnologists engaged in the monument preservation and the municipal government and state administration with their aim to enhance local or regional tradition cannot be overlooked. Participation inpreservation of a number of objects of vernacular architecture in particular villages enables the contemporary generation to learn about local building traditions, handcraft production, etc. Environment created like this is an ideal starting point for common cultural activities, stimulation of interest in the native place and region, previous generations and their way of life.