Eur J Protistol
October 2024
This review aims to compile sparse information on the ecology of freshwater heterotrophic euglenoids and synthesize the main phenomena and hypotheses from published results. Apparently, heterotrophic euglenoids play a very important role in the nutrient flow of water ecosystems and are irreplaceable heterotrophic contributors in benthic communities, as their total biomass is by far the largest among heterotrophic flagellates. Even though they are obviously a very crucial part of the diversity of freshwater heterotrophic protists, and likely the most represented (in terms of biovolume) group of heterotrophic flagellates, there have been only a few attempts to elucidate their ecological preferences, roles, niches, and importance.
View Article and Find Full Text PDFThe aim of this work was to determine the changes in the chemical and physical-mechanical properties of gauze compresses under the influence of various sterilizations. Gauze compresses are made of cotton; therefore, all methods used focused on cotton. The methods used to test possible damage to cotton materials (pH value (pH paper, KI starch paper), yellowing test, Fehling reaction, reaction to the formation of Turnbull blue (Berlin blue), microscopic staining with methylene blue and swelling reaction with Na-zincate) did not show that the sterilizations affected the cotton compresses.
View Article and Find Full Text PDFThis study presents the results of a complex survey of freshwater heterotrophic euglenoids in the Czech Republic, including both literature data and own field surveys of 469 sites visited in the course of three years. The checklist includes 189 taxa in 28 genera: Anisonema (10), Astasia (26), Atraktomonas (1), Calycimonas (2), Chasmostoma (1), Dinematomonas (3), Distigma (8), Dylakosoma (1), Entosiphon (4), Euglena (1), Gyropaigne (1), Heteronema (19), Jenningsia (11), Khawkinea (1), Lepocinclis (1), Menoidium (7), Neometanema (3), Notosolenus (18), Petalomonas (40), Phacus (1), Ploeotia (2), Pseudoperanema (7), Rhabdomonas (5), Scytomonas (1), Sphenomonas (5), Teloprocta (1) Tropidocyphus (1), Urceolus (4), and 4 species of uncertain identity. In addition, a general description of habitat types in which the taxa were found and a review of the current taxonomy and nomenclature of included taxa are provided.
View Article and Find Full Text PDFHeterocytous cyanobacteria are among the most prolific sources of bioactive secondary metabolites, including anabaenopeptins (APTs). A terrestrial filamentous sp. CT11 collected in Costa Rica bamboo forest as a black mat, was studied using a multidisciplinary approach: genome mining and HPLC-HRMS/MS coupled with bioinformatic analyses.
View Article and Find Full Text PDFThis report describes the discovery of the rare euglenoid taxon Trachelomonas bituricensis var. lotharingia in a small mesotrophic pond in the Czech Republic. Only limited data are available on the distribution of this taxon as same as for typical variety of Trachelomonas bituricensis, even though this taxon is morphologically very well defined.
View Article and Find Full Text PDFVisual evoked potentials (VEPs) produced by pattern reversal were compared with those elicited by onset of motion in 37 amblyopic children (20 with anisometropic amblyopia, seven with strabismic amblyopia and 10 with both anisometropia and strabismus). The amplitudes and peak latencies of the main P1 peak in the pattern-reversal VEP and of the motion-specific N2 peak in the motion-onset VEP through the amblyopic eye were compared with those through the normal fellow eye. Regardless of the type of amblyopia, the amplitude of the pattern-reversal VEP for full-field stimulation was significantly smaller and its latency significantly longer through the amblyopic eye (P < 0.
View Article and Find Full Text PDFIn the opinion of some journalists and business leaders, Japan's preeminence in product quality is a direct consequence of lectures delivered 40 years ago in Tokyo by two Americans--W. Edwards Deming and Joseph M. Juran.
View Article and Find Full Text PDFScleroplastic surgery is known to encounter the pathogenetical agent when the progressive myopia develops. In the first part, the implemented surgical approaches as well as up-to-date surgical techniques are presented. The experimental part is reserved for the selection of material which is necessary to perform scleroplasties.
View Article and Find Full Text PDFSb Ved Pr Lek Fak Karlovy Univerzity Hradci Kralove
May 1991
A total of 50 children with unilateral amblyopia was treated by short term 10 minute-lasting weekly occlusions of visually well eye. During the occlusion the child is providing the intensive detailed activities under patient's supervision. After an approximately half-a-year lasting interval, the "eye-hand" exercise resulted in the mean improvement of visual acuity for 2.
View Article and Find Full Text PDFActa Neurobiol Exp (Wars)
December 1987
Sixty-four amblyopic children (mean age 7.5 years, age range 4-12 years) were subjected to treatment using slowly rotating patterns of different spatial frequencies. In 20 amblyopes square-wave gratings (spatial frequencies 0.
View Article and Find Full Text PDFSb Ved Pr Lek Fak Karlovy Univerzity Hradci Kralove Suppl
March 1988
Sb Ved Pr Lek Fak Karlovy Univerzity Hradci Kralove
April 1981
Sb Ved Pr Lek Fak Karlovy Univerzity Hradci Kralove
April 1979
Sb Ved Pr Lek Fak Karlovy Univerzity Hradci Kralove Suppl
May 1978
HL-A phenotype frequencies were studied in 36 patients with Sjögren's syndrome and compared with those of 350 healthy individuals from the same geographical area. Patients suffering from Sjögren's syndrome had a significantly higher frequency of HL-A8 (P corrected less than 0.01).
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