This study reports the occurrence of Austrodiplostomum compactum metacercariae in the freshwater fish Schizodon intermedius (ximborê/piava) from a Neotropical reservoir in the Paranapanema River, state of São Paulo, Brazil. From a total of 75 fish collected, we found 38 infected with A. compactum metacercariae (prevalence = 50.67%) in the eyes. The mean intensity of infection and mean abundance...

This is a summary of research which appears in a preprint of the same title. We prove a K-resolution theorem for simply connected CW-complexes K in extension theory in the class of metrizable compacta X. This means that if dimX ≤ K (in the sense of extension theory), n is the first element of N such that G = πn(K) 6= 0, and it is also true that πn+1(K) = 0, then there exists a metrizable compac...

Interest in calcifying coralline algae has been increasing over the past years due to the discovery of extensive coralline algal dominated ecosystems in Arctic and Subarctic latitudes, their projected sensitivity to ocean acidification and their utility as palaeoenvironmental proxies. Thus, it is crucial to obtain a detailed understanding of their calcification process. We here extracted calcif...

Let X be a compactum and let A = {(Ai, Bi) : i = 1, 2, . . .} be a countable family of pairs of disjoint subsets of X. Then A is said to be essential on Y ⊂ X if for every closed Fi separating Ai and Bi the intersection ( ⋂ Fi) ∩ Y is not empty. So A is inessential on Y if there exist closed Fi separating Ai and Bi such that ⋂ Fi does not intersect Y . Properties of inessentiality are studied a...

We prove that for every compactum X and every integer n ≥ 2 there are a compactum Z of dim ≤ n and a surjective UV n−1-map r : Z −→ X having the property that: for every finitely generated abelian group G and every integer k ≥ 2 such that dimG X ≤ k ≤ n we have dimG Z ≤ k and r is G-acyclic, or equivalently: for every simply connected CW-complex K with finitely generated homotopy groups such th...

This study was aimed at evaluating the infection levels of Austrodiplostomum compactum metacercariae in 378 specimens of Plagioscion squamosissimus ('corvina' or 'pescada branca') from the Nova Avanhandava reservoir, low Tietê River, São Paulo State, Brazil. High prevalence, mean intensity of infection and abundance were observed in P. squamosissimus during most of the study, with the exception...

Essential oils of seven Moroccan Labiatae were chemically analysed by GC-MS and evaluated for their in vitro antifungal activity against Botrytis cinerea. Among them, Origanum compactum and Thymus glandulosus greatly inhibited the growth of the mycelium. The inhibition of Botrytis cinerea was 100% for both oils at 100 ppm, while the IC(50)s were 35.1 and 79.2 ppm, respectively. Mentha pulegium ...

Questo contributo presenta tre brevi note di lettura su altrettanti passi del Filostrato (IV 51, 1-8; IV 56, 4-8) e Ninfale fiesolano (229, 1-5) Giovanni Boccaccio, volte alla ricerca probabili fonti modelli classici mediolatini finora sfuggiti all’attenzione degli studiosi.