Search results for "Nile"
showing 10 items of 619 documents
Urethrocutaneous fistula repair after hypospadias surgery
2003
OBJECTIVE To evaluate and compare the success rates of simple and layered repairs of urethrocutaneous fistulae after hypospadias repair. PATIENTS AND METHODS The charts of 72 children who developed fistulae after hypospadias repair were reviewed; 39 had a simple closure of the fistula, whereas 32 had a 'pants over vest' repair, in all cases after excluding an impairment of urine outflow. RESULTS The success rate at the first attempt was 74% for simple closure and 94% for the layered repair; at the second attempt it was 80% and 100%, the difference being statistically significant for both repairs. CONCLUSIONS Although probably far from an optimal technique for repairing urethrocutaneous fist…
Host searching in Argulus foliaceus L. (Crustacea: Branchiura): the role of vision and selectivity.
1998
In laboratory experiments, the swimming behaviour of the ectoparasite Argulus foliaceus and its infection rates on juvenile perch (Perca fluviatilis) and roach (Rutilus rutilus) were examined. The highest infection rate and a preference for perch juveniles were obtained in darkness, the lowest infection rate and a lack of preference in the light, when aquaria with glass walls (high reflectivity) were used. In the light, when aquaria were lined with black plastic (low reflectivity) an intermediate level of infection for perch and the highest for roach was recorded. Under such conditions roach were significantly more heavily infected than perch; an attack rate 4 times greater was recorded for…
A New Technique for Coronaplasty in Penile Reconstruction.
2018
Abstract Background The coronaplasty is an important step of the phalloplasty procedure as it creates a prominent coronal ridge and a constricted coronal sulcus, resulting in the transformation of a regular skin flap into a flap resembling a circumcised penis. Aim The aim of this article is to describe our new coronaplasty technique that exploits opposing contracting forces of 2 different skin grafts to hold the shape of a thick, distally based skin flap, resulting in a natural looking neo-phallus. Methods A distally based flap is raised at the junction of the middle and distal thirds of the neo-phallus. The dissection continues until adequate mobilization is obtained, so the flap can stand…
Effects of brofaremine (CGP 11 305A), a short-acting, reversible, and selective inhibitor of MAO-A on sleep, nocturnal penile tumescence and nocturna…
1987
The effects of brofaremine (CGP 11 305A), a short-acting, reversible and selective inhibitor of MAO-A, on sleep, nocturnal penile tumescence (NPT) and hormonal secretion during the night were studied during a long-term trial. Three healthy males underwent sleep-EEG and NPT recordings during consecutive nights (1) under placebo, (2) under stepwise increasing dosages of brofaremine and (3) under placebo after withdrawal. Hormone profiles were sampled during selected nights to analyze the plasma concentration of cortisol, HGH, prolactin, testosterone, LH and FSH. REM sleep was suppressed markedly under 150 mg brofaremine, while stages 1 and 2 increased. In comparison to the effect of irreversi…
Ecdysteroid-dependent larval-adult oviduct transformation in the milkweed bugOncopeltus fasciatus requires absence of juvenile hormone
1987
It has been tested whether juvenile hormone plays a role in the larval-adult transformation of lateral oviducts in the milkweed bug. The transformation is ecdysteroid-dependent, as was reported previously2. Application of precocene or juvenile hormone III proved that the absence of juvenile hormone is required.
Candidate target mechanisms of the growth inhibitor cyromazine: Studies of phenylalanine hydroxylase, puparial amino acids, and dihydrofolate reducta…
2000
Cyromazine, an insect growth regulator, affects larval and pupal cuticles in dipterans and some other insects. The mode of action of this aminotriazine is not known yet, though it has been shown not to inhibit the synthesis of chitin and cuticular proteins. Cyromazine may, however, act on some step(s) of sclerotization of the cuticle. In the present study, we have analyzed the key enzyme for the production of sclerotization agents, phenylalanine hydroxylase (PAH), using the enzyme from Drosophila, a cyromazine-sensitive insect. PAH was studied in vitro with cyromazine and three biologically less active derivatives at concentrations ranging from 1 μM to 1 mM. None of the compounds did signif…
Combining ontogenetic and evolutionary scales of morphological disparity: a study of early Jurassic ammonites
2007
SUMMARY Two major research themes in Evolutionary Developmental Biology and in Paleobiology, respectively, have each become central for the analysis and interpretation of morphological changes in evolution: the study of ontogeny/ phylogeny connections, mainly within the widespread and controversial framework of heterochrony; and the study of morphological disparity, the morphological signal of biodiversity, describing secular changes in morphospace occupation during the history of any given clade. Although enriching in their respective fields, these two themes have remained rather isolated to date, despite the potential value of integrating them as some recent studies begin to suggest. Here…
Néixer de les entranyes d'una dona morta: Pasolini i la generaciò dels fills
2016
Through the analysis of some poems of the vast production of Pier Paolo Pasolini I try to summarize some traits of the expressiveness of the poet, circumscribing its contours within the terms of the generational dialectic. A dialectic that assumes the features of an unresolved confrontation that sees the Poet withdrawing, self-exclusion, renouncing integration and beating the path of the outcast, who nourishes the victim's myth and assumes the connotations of the scapegoat to the extreme. In the complex symbolic network that Pasolini intertwines with reality, the relationship with the Mother and the Father takes on a peculiar meaning because it defines the impossibility of a transgeneration…
Differences in Inhibitory Control between Impulsive and Premeditated Aggression in Juvenile Inmates
2017
Inhibitory control dysfunction was considered a universal characteristic of violent offenders. The aim of this study was to examine differences in inhibitory control between two subtypes of violent youth; those displaying predominantly impulsive and those presenting predominantly premeditated aggression (PM). Forty-four juvenile offenders, defined on the basis of the Procedures for the Classification of Aggressive/Violent Acts (Stanford and Barratt, 2001) participated (N = 23: impulsive; N = 21 premeditated). A visual Go/NoGo task was used to compare behavioral responses and event-related potentials (ERPs) between groups. The task contained two letters (W and M), W was the Go stimulus and M…
La persistenza di povertà tra i giovani europei. Fattori di rischio, persistenza, correttivi
2011
Lo studio analizza i fattori associati alla persistenza di povertà fra i giovani in undici paesi europei. Oltre alle condizioni che spiegano normalmente la povertà e la sua persistenza (avere un basso livello di istruzione, vivere senza un partner, uscire dalla famiglia d’origine ed essere senza lavoro), emerge l’importanza del sistema di welfare nello smussare i principali fattori di rischio cui i giovani sono esposti nel processo di transizione allo stato adulto. Si evidenzia come per i giovani europei l’uscita dalla famiglia d’origine sia uno dei principali fattori di rischio, mentre la maggiore probabilità di sperimentare la povertà persistente da parte delle donne sia dovuta principalm…