Search results for "MNA"
showing 10 items of 1167 documents
Occurrence of a sibling species complex within neotropical lymnaeids, snail intermediate hosts of fascioliasis.
2002
The delimitation of cryptic species within the genus Lymnaea, which are the main vectors of fascioliasis, remains a topic of controversy. An analysis of genetic variability based on 12 enzyme loci revealed different fixed alleles at 9 loci between two sympatric samples of Lymnaea viatrix at the type locality in Lima, Peru. The absence of heterozygotes within this locality indicates the presence of isolated populations or cryptic species within L. viatrix. Significant genetic differences were also found between these two L. viatrix samples from Lima and other populations of L. viatrix in South America and in addition to species such as L. truncatula, L. cubensis and L. columella. Moreover, t…
Ketogenic diet does not affect strength performance in elite artistic gymnasts
2012
Abstract Background Despite the increasing use of very low carbohydrate ketogenic diets (VLCKD) in weight control and management of the metabolic syndrome there is a paucity of research about effects of VLCKD on sport performance. Ketogenic diets may be useful in sports that include weight class divisions and the aim of our study was to investigate the influence of VLCKD on explosive strength performance. Methods 8 athletes, elite artistic gymnasts (age 20.9 ± 5.5 yrs) were recruited. We analyzed body composition and various performance aspects (hanging straight leg raise, ground push up, parallel bar dips, pull up, squat jump, countermovement jump, 30 sec continuous jumps) before and after…
Latviešu studentu korporācijas Lettonia kantikums
2003
Europa traicionada
2002
Reviewing lymnaeid vectors of fascioliasis by ribosomal DNA sequence analyses.
2005
AbstractSnails of the family Lymnaeidae are of great parasitological importance due to the numerous helminth species they transmit, mainly trematodiases (such as fascioliasis) of considerable medical and veterinary impact. The present knowledge of the genetics and host–parasite relationships of this gastropod group is far from adequate. Fascioliasis is caused by two species, Fasciola hepatica and F. gigantica, which, as in the case of other trematodes, show a marked snail host specificity. Many lymnaeid species involved in fascioliasis transmission still show a confused systematic-taxonomic status. The need for tools to distinguish and characterize species and populations of lymnaeids is ev…
Perspectiva del alumnado de ramas de educación sobre las actividades multimedia e interactivas H5P
2022
H5P es software libre que permite crear de forma relativamente sencilla más de 48 objetos desarrollados especialmente para el aprendizaje en línea, entre ellos, imágenes interactivas 360º, presentaciones interactivas y vídeos interactivos. H5P es una tecnología educativa novedosa y todavía hay pocos estudios sobre ella, aunque presenta potencial pedagógico. En este estudio se analiza la perspectiva del alumnado universitario de ramas de educación (futuros/as maestros/as, profesores/as, y educadores/as) sobre la utilidad didáctica de cuatro tipos de contenido H5P: arrastra las palabras, ordena los párrafos, completa los huecos y vídeo interactivo. Los/as participantes cursaban el grado en Ma…
Sombras en Lisboa
2000
Roads, travelling and communication in the Polish – Lithuanian Commonwealth in the 18th century. Russian and West European visitors’ perspective
2020
W artykule przedstawiony został stan techniczny dróg lądowych i rzecznych, mostów, grobli oraz pozostałej infrastruktury komunikacyjnej w Polsce na podstawie relacji podróżników z zagranicy, w tym Rosjan. Stan oraz jakość lądowych i rzecznych środków transportu był oceniany przez cudzoziemców bardzo nisko, podobnie jak jakość usług oferowanych w przydrożnych karczmach w Polsce i na Litwie. W rezultacie podróżowanie w XVIII w. po Rzeczypospolitej mogło stanowić interesujące doświadczenie. Tak goście z Rosji, jak i z krajów zachodniej Europy natrafiali na wiele przeszkód w trakcie podróży, postrzegając przy tym kraj jako pełen paradoksów. Fatalny stan dróg, przerażające swoim standardem karcz…