Search results for "Distal segment"
showing 3 items of 3 documents
Digitiform Sensilla on the Maxillar Palp of Coleoptera
1981
The fine structure of the digitiform sensilla on the distal segment of the maxillar palps of Tenebrio and Dermestes is described. Each sensillum is associated with a single sensory cell and three enveloping cells, which enclose two receptor lymph cavities. The inner receptor lymph cavity of both species shows a different structural feature. Branches of the outer dendritic segments, which contain numerous microtubules, run to the tip of the hairshaft. A dendritic sheath extends to the apex of the peg. The hairshaft possesses a second canal, which is free of dendrites. The poreless hairshaft is inserted in a cuticular canal; the longer distal part of the shaft is positioned in a narrow superf…
Die digitiformen Sensillen auf dem Maxillarpalpus von Coleoptera
1980
The digitiform sensilla on the distal segment of the maxillar palps ofAgabus bipustulatus (L.) andHydrobius fuscipes (L.) were investigated by electron microscopic methods. Each sensillum is innervated by a single bipolar sensory cell. The sensilla ofHydrobius are associated with three enveloping cells, which enclose an inner and outer receptor lymph cavity. A single enveloping cell only is found in the completely differentiated sensilla ofAgabus. These sensilla do not form an outer lymph cavity. The area beneath the hair base is filled by the distal process of the enveloping cell and by extensions of epidermal cells. Only one extra-cellular space exists, which seems to be homologous to an …
Results after one year of rotavirus universal mass vaccination in Sicily
2015
Background Rotavirus (RV) vaccination is the best strategy to prevent hospitalizations due to rotavirus gastroenteritis (RVGE) and is strongly recommended by international health authority [1]. The Sicilian Health Department introduced rotavirus universal mass vaccination (RUMV) into regional immunizations schedule in 2013 (mean vaccination coverage = 31%). Intussusception is the invagination of one segment of the intestine within a more distal segment and even though the etiology is still unknown, in 1998, a relationship with a tetravalent rotavirus vaccine that was promptly withdrawn was suggested [2]. Post licensure surveillance studies have not confirmed previous findings and no increas…