Search results for "Cod"

'Le lacrime del coccodrillo'

2008

On FE-grid relocation in solving unilateral boundary value problems by FEM

1992

We consider FE-grid optimization in elliptic unilateral boundary value problems. The criterion used in grid optimization is the total potential energy of the system. It is shown that minimization of this cost functional means a decrease of the discretization error or a better approximation of the unilateral boundary conditions, Design sensitivity analysis is given with respect to the movement of nodal points. Numerical results for the Dirichlet-Signorini problem for the Laplace equation and the plane elasticity problem with unilateral boundary conditions are given. In plane elasticity we consider problems with and without friction. peerReviewed

Reproduction of Baltic cod, Gadus morhua (Actinopterygii: Gadiformes: Gadidae), in the Gotland Basin: Causes of annual variability

2015

Background. The Gotland Basin spawning ground is one of three main spawning areas of Baltic cod, Gadus morhua Linnaeus, 1758. The threshold water parameters for cod development are the salinity exceeding 11‰ and the oxygen level above 2 mL· L–1. Such conditions are only present when the 11‰ isohaline is above the 2 mL· L–1 isooxygen. In such situation the water volume between the isolines is called the “suitable reproduction volume”. When the position of the isolines is reversed, the salinity and the oxygen level of the water layer demarcated by them are below the required thresholds and as such the water is unsuitable for the cod development. We refer to it as the “unsuitable reproduction …

Biodiversity in the era of the market globalization: some cases from the marine realm

2015

The over-exploitation of the most consumed species has determined an increase in demand of frozen or trasformed fishery products importated from different countries. This caused an increase of food fraud represented by the substitution of a species with another with less eco- nomical value but which presents similar morphological characeristics. The use of modern tools as the DNA barcoding is crucial for traceability of such products and provides the consumer the necessary information about the exact identification of the species and their origin. The Italia and European Union food stuff are controlled thanks to laws, while for many non UE products are not expected any control inspection

Ancora sulle stele e le edicole dipinte di Lilibeo: immagini, formule, funzioni

2020

Il contributo esamina le stele e i naiskoi funerari dipinti di Lilibeo (Sicilia), recentemente incrementati da due nuove acquisizioni. Sono presi in considerazione i (pochi) dati contestuali, oltre a tipologia, iconografia e formule epigrafiche, allo scopo di mettere in luce specificità, funzioni e messaggi di tali manufatti. Alcuni elementi “trasversali” di carattere antiquario e stilistico, oltre ai dati epigrafici, attestano una sostanziale contemporaneità delle stele più semplici con singolo personaggio stante, con melograno in mano, e dei più elaborati naiskoi con “Totenmahlmotiv”, nella tarda età repubblicana. Le chiare differenze di morfologia, iconografia, formule epigrafiche e luog…

Il riconoscimento della paternità nella relazione educativa

2009

The radio antipodal and radio numbers of the hypercube

2011

International audience; A radio k-labeling of a connected graph G is an assignment f of non negative integers to the vertices of G such that |f(x) − f(y)| \ge k + 1 − d(x, y), for any two vertices x and y, where d(x, y) is the distance between x and y in G. The radio antipodal number is the minimum span of a radio (diam(G) − 1)-labeling of G and the radio number is the minimum span of a radio (diam(G))-labeling of G. In this paper, the radio antipodal number and the radio number of the hypercube are determined by using a generalization of binary Gray codes.

Allium aetnense (Amaryllidaceae), a new species from Sicily.

2013

A new species from Mt Etna (Sicily), Allium aetenense of A. sect. Codonoprasum, is described and illustrated. It is a diploid species (2n = 16) that grows on basaltic rocks in the mountain belt and shows close relationships with A. tenuiflorum of the Italian peninsula. Its morphology, karyology, leaf anatomy, seed coat microsculpturing, ecology and taxonomic position are examined.

HERPETOFAUNA DI HUTAN DATARAN RENDAH HAYA, MAMBERAMO, PAPUA

2008

<p><em>During about 19 days field work survey (7-25 February 2008) on the Haya lowland forest area, Mamberamo Papua. Eksploration is the methods used in this study. Reptiles and amphibians were collected by hand on the night and day in several type of habitat (plains, swamp, oxbowlake, stream, creeks and hills). The result showed that 48 species of herpetofauna (21 species frogs, 19 species of lizard, six species of snakes and one species of turtles and crocodile) were found.</em></p>

Dynamics of Ostracoda (Crustacea) assemblages in a Mediterranean pond system (Racó de l'Olla, Albufera Nat. Park) with focus on the exotic speciesCan…

2013

Coastal pond systems can account for a rich aquatic faunal diversity and complex functioning due to interplay between freshwater wetlands and marine influences. Within the large Albufera wetland Natural Park, Raco de l'Olla is constituted by a set of permanent and temporary ponds with strict protection level for migrating bird conservation. Its terrestrial faunal diversity and dynamics has been partially characterized in previous studies, but nothing was known about its ostracod communities. Benthic samples collected monthly for 1 year in 11 points through the pond system, together with limnological information, allowed establishing a sound knowledge on its ostracod community and population…