In this paper, we define a new type of product of association schemes (and of the related objects, permutation groups and orthogonal block structures), which generalizes the direct and wreath products (which are referred to as “crossing” and “nesting” in the statistical literature.) Given two association schemes Qr for r = 1, 2, each having an inherent partition Fr (that is, a partition whose e...

Este texto reseña la película Sorry We Missed You (2019) dirigida por Ken Loach. Particularmente, se enfoca en caracterización de las tendencias del trabajo hacia informacionalización y plataformización el capitalismo actual, cuyo grado penetración observa distinta medida historias los protagonistas, representando éstas una buena antesala su pleno impacto.

Emerging technologies have led to an increase in species observations being recorded via digital images. Such visual records are easily shared, and are often uploaded to online communities when help is required to identify or validate species. Although this is common practice, little is known about the accuracy of species identification from such images. Using online images of newts that are na...

Submerged macrophytes are essential elements of sublittoral ecosystems to maintain a diverse fish fauna. The aim this study was assess juvenile associated with macrophyte habitats in the Curonian Lagoon by means modified pop net method. We focused on two dominant littoral different structure (pondweed and charophyte stands). nets sampling carried out sites located freshwater oligohaline part la...