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Results for “IMAGINATION”

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At least 721 records · Page 40Linked to original sources

PubMed1978

[Morphogenesis of the imaginal abdominal epidermis in Calliphora erythrocephala (Insecta,Diptera)].

The morphogenesis of the abdominal epidermis in Calliphora erythrocephala begins by a cellular proliferation which proceeds slowly in larvae and rapidly in pupae. This allows histoblasts to glide and invade the whole abdominal surface. As soon as the new epidermal sheet has become continuous, differentiation begins. Generalized epidermal cells show an intense activity which leads to the deposition of imaginal cuticle from the 6th day after pupation onwards. After cuticle deposition they darken and become inactive although they remain alive, even after emergence. Trichogen and tormogen cells are even more active than generalized epidermal cells, especially the trichogen cell in which polyribosomes and microtubules are abundant. The former are possibly involved in microtubule synthesis. After cuticle deposition the trichogen and tormogen cells undergo degeneration. Their nuclei contract, rough endoplasmic reticulum breaks down and cytoplasm breaks up into fragments through infoldings which proliferate from the plasma membrane. Finally only generalized epidermal cells and sensory cells remain alive in the adult.

Abdomen↗

PubMedDate not supplied

[Facultative imaginal diapause in Xenopsylla conformis (Siphonaptera) fleas].

The factors favouring the cessation of reproduction in X. conformis are laid in the preimaginal state. The drop in temperature during the formation of imago at the pupal stage is a signal for the cessation of reproduction. Imagos hatched at a temperature lower than that of developmental conditions of preimaginal stages do not start reproduction and enter facultative imaginal diapause state. With further decrease in temperature the state of fleas intensifies. With the rise of temperature fleas come out of diapause. In autumn coming out of diapause begins at a temperature higher than 20 degrees, on the 8th--9th day. The lower air temperature the more rapid is coming out of diapause, at a rise of temperature of 3 to 5 degrees.

Animals↗

PubMed1982

[Effect of difluron (dimilin) on larvae, imagines and eggs of Epilachna varivestis Muls. through application to the host plant].

Dimilin active ingredient diflubenzuron) is an insecticide influencing the chitin synthesis. The paper investigates its effect under application via the host plant. After oral intake with the food, the larvae of Epilachna varivestis Muls. (Mexican bean beetle) could not carry out the next molting and died. Imagines which had taken up Dimilin laid fewer eggs than untreated beetles, and no larvae hatched from the eggs. Direct treatment of the cluster of eggs with Dimilin also affected their development, depending on the degree of concentration. Freshly laid eggs were more susceptible than older ones. Contact with the treated non-host plant Vicia faba also caused disturbances in the development. The sensitive phase in the second instar lies between 24 and 48 hours after the previous molt. 3 to 6 hours exposition time are sufficient to inhibit the molting of the larvae, 9 hours suppressed the molting completely. The concentration limit for larvae of Epilachna varivestis lies between 1.0 and 2.5 ppm.

Animals↗

PubMed1995

Clinical work and cultural imagination.

With illustrations from clinical experience in India, this paper discusses the question of the cultural rootedness of psychoanalysis as a therapeutic method and some of the cultural differences, chiefly, the dominance of the theme of "maternal enthrallment," both in Indian cultural imagination and in clinical work with male patients.

Adult↗

PubMed1996

Body dysmorphic disorder: diagnosis and treatment of imagined ugliness.

Body dysmorphic disorder (BDD), a preoccupation with an imagined or slight defect in appearance, has been described for more than a century and reported around the world. However, this distressing and impairing disorder often goes undiagnosed, even though available data suggest that it is relatively common. Virtually any body part can be the focus of concern, with preoccupations most often involving the hair, nose, or skin. Most patients engage in excessive and repetitive behaviors such as mirror checking, skin picking, and reassurance seeking. Insight is generally poor, and many patients are frankly delusional. Most patients experience significant impairment in functioning, and suicide attempts are relatively common. Although the majority of patients with BDD seek often costly nonpsychiatric treatment-most often, surgical or dermatologic-such treatment usually appears to be unsuccessful. In contrast, preliminary data from open studies suggest that the serotonin reuptake inhibitors are often, and perhaps preferentially, effective for BDD. Augmentation, combination, and switching strategies may be useful in treatment-resistant cases. Preliminary data suggest that cognitive-behavioral strategies using exposure and response prevention may also be effective. Investigation of all aspects of this understudied disorder, including controlled treatment trials, is greatly needed.

Adult↗

PubMedDate not supplied

Religious insistence on medical treatment. Christian theology and re-imagination.

Families and surrogates sometimes use religious themes to justify their insistence on aggressive end-of-life care. Their hope that "God will work a miracle" can halt negotiations with health care professionals and lead to litigation. The possibility of "re-imagining" religious themes, to broaden their scope and present a wider vision of the Christian tradition, may offer a solution.

Attitude to Death↗

PubMedDate not supplied

[Effect of larval feeding and imaginal supplementary nutrition on the degree of autogeny and fertility of Culex pipiens molestus mosquitoes at different periods of the year].

Studies of ovogenesis of C. p. molestus at different food regimes (water, sugar, blood) have shown that in winter the imaginal feeding with carbohydrates nearly twice increases the degree of autogenity and fecundity of these mosquitoes. In warm seasons the carbohydratous feeding does not affect the autogenity but increases the fecundity of females and maturation of their ovaries. Poor larval feeding decreases only slightly the autogenity and sharply decreases the fecundity of females. Blood feeding favours the maturation of ovaries in most members of C. p. molestus and the growth of their fecundity.

Animals↗

PubMed1965