998 resultados para Pohjois-Karjalan historia 4 : 1809-1939 : maakunnan synty


Relevância:

30.00% 30.00%

Publicador:

Resumo:

Aspects related to hatching, time-lapse between presenting the blood-meal and beginning of feeding, feeding time, postfeed defecation delay, mortality, and fecundity for each stage of Meccus longipennis life-cycle were evaluated. The bugs were maintained in a dark incubator at 27 ± 1ºC and 80 ± 5% rh, were fed weekly and checked daily for ecdysis or death. The hatching rate observed for 300 eggs was 76.7% and the average time of hatching was 19.8 days. Mean time-lapse between presentation of the blood meal and the beginning of feeding was under 5 min in nymphal stages and postfeed defecation delay was under 10 min in most stages, except in fourth and fifth stages. Mean feeding time was longer than 10 min in most stages, except in fourth stage. One hundred thirty-one nymphs (N) (65.5%) completed the cycle and the average time from NI to adult was 192.6 ± 34.8 days. The average span in days for each stage was 18.1 for NI, 21.4 for NII, 29.5 for NIII, 45.5 for NIV and 55.9 for NV. The number of bloodmeals at each nymphal stage varied from 1 to 5. The mortality rate was 3.29 for NI, 6.8 for NII, 2.92 for NIII 3.76 for NIV, and 10.16 for NV nymphs. The average number of eggs laid per female in a 9-month period was 615.6. Based on our results, we conclude that M. longipennis has some biological and behavioral characteristics which influence its capacity of becoming infected and transmitting Trypanosoma cruzi to human populations in those areas of Mexico where it is currently present.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Este estudio tiene el objetivo de describir la evolución de los cuidados paliativos, reflexionando sobre la posibilidad de su origen en las culturas primitivas y su relación con el inicio del culto a los muertos. Se describe el cambio producido en las estructuras, las interacciones simbólicas y sociales implicadas en el desempeño de cuidados paliativos durante la prehistoria: unidad funcional, marco funcional y elemento funcional. El marco teórico se fundamenta en la historia cultural, el modelo estructural dialéctico y el interaccionismo simbólico. Se aplicaron técnicas de categorización y análisis de la historia cultural y el estructuralismo dialéctico. Los cuidados paliativos ya existían en las sociedades primitivas vinculados, en gran medida, a los ritos de transición con un alto contenido simbólico. Las estructuras sociales: unidad funcional, marco funcional y elemento funcional; constituyen los pilares sobre los que se sustentaron los cuidados paliativos en las sociedades prehistóricas.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Kirje

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Collection : Collection de documents inédits sur l'histoire de France

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Collection : Collection de documents inédits sur l'histoire de France

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Collection : Collection de documents inédits sur l'histoire de France

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Collection : Collection de documents inédits sur l'histoire de France

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Collection : Collection de documents inédits sur l'histoire de France

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Collection : Collection de documents inédits sur l'histoire de France