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Biomedical subjects

P Miceli

Publications and source records attributed to P Miceli.

5 recordsLinked to original sources
PubMed1996

Averaging temporal duration and spatial position.

Pigeons and humans performed on a task in which spatial position and elapsed time redundantly signaled the availability of reward. On each training trial, a landmark moved steadily across a monitor screen. After a fixed amount of time and movement, reward was available for a response. On occasional unrewarded tests, the landmark moved at 0.50, 0.75, 1.00, 1.50, or 2.00 times the training speed. In both pigeons and humans, the central tendency in the response distribution on tests differed across speeds, when measured in terms of both elapsed time and landmark position. Pigeons and humans seem to average a duration of time and a spatial position to find a single criterion time-place corresponding to the expected time-place of reward.

Animals↗
PubMed1989

[Vaginitis caused by Eikenella corrodens].

The Authors report a case of vaginitis caused by Eikenella corrodens (E.C.) and point out it is very rare all over the world (probably the first case reported in Italy). The E.C. was the only one isolated from the vaginal specimen. They emphasized the importance of bacteria isolation in subacute or relapsing vaginitis and relevant sensibility to antibiotic assays. These are generally neglected but still able to give unexpected results then allowing a target therapy.

Adult↗
PubMed1986

Mucosal changes associated with adenomatous colonic polyps.

In order to assess the presence of morphologically recognizable colonic nonneoplastic mucosal alterations that may be associated with adenomatous transformation the authors undertook a retrospective analysis of 984 colonic polyps removed between 1979 and 1983. There were 708 adenomatous and 276 nonadenomatous polyps, all colonoscopically removed. In addition to adenomatous mucosa, three different mucosal patterns were recognized and labeled as transitional, eosinophilic, and, hyperplastic. Each polyp, but not the polyp's shoulder, was scored by two pathologists for the presence of these changes. Analysis of the data (Pearson's chi-square test) demonstrated a strong association between eosinophilic and transitional mucosa as well as between eosinophilic mucosa and adenomas. There was also a strong negative association between both eosinophilic and transitional mucosa and hyperplastic mucosa. On the basis of these data, it is postulated that transitional mucosa, representing a nonspecific reactive mucosal phenomenon, may precede eosinophilic mucosa, which subsequently may represent fertile soil for adenomatous transformation.

Adult↗