Search results for "GC"

First Evidence of Contourite Drifts in the North-Western Sicilian Active Continental Margin (Southern Tyrrhenian Sea)

2021

We present the results of an integrated geomorphological and seismo-stratigraphic study based on high resolution marine data acquired in the north-western Sicilian continental margin. We document for the first time five contourite drifts (marked as EM1a, EM2b, EM2, EM3a, and EM3b), located in the continental slope at depths between ca. 400 and 1500 m. EM1a,b have been interpreted as elongated mounded drifts. EM1a,b are ca. 3 km long, 1.3 km wide, and have a maximum thickness of 36 m in their center that thins northwards, while EM1b is smaller with a thickness up to 24 m. They are internally characterized by mounded seismic packages dominated by continuous and parallel reflectors. EM2 is loc…

Stress sensitivity of stylolite morphology

2009

International audience; Stylolites are rough surfaces that form by localized stress-induced dissolution. Using a set of limestone rock samples collected at different depths from a vertical section in Cirque de Navacelles (France), we study the influence of the lithostatic stress on the stylolites morphology on the basis of a recent morphogenesis model. We measured the roughness of a series of bedding-parallel stylolites and show that their morphology exhibits a scaling invariance with two self-affine scaling regimes separated by a crossover-length (L) at the millimeter scale consistent with previous studies. The importance of the present contribution is to estimate the stylolite formation s…

SELFIE for Teachers: autoriflessione sulla competenza digitale degli insegnanti

2022

A livello nazionale ed internazionale, cresce sempre di più la necessità e l’interesse di fornire ai docenti le competenze adeguate per poter utilizzare in modo efficace le tecnologie digitali nei processi di insegnamento e apprendimento (OECD, 2019). Nell’ambito della diffusa attenzione sullo sviluppo delle competenze digitali si pone l’accento sulla riflessione personale che i docenti possono effettuare sulle competenze di cui dispongono (La Marca, 2019; Gulbay, 2018). Attraverso la ricerca, condotta nell’anno accademico 2021/2022, si intendono esaminare i risultati emersi dall’autoriflessione e autovalutazione sulle competenze digitali di 2224 docenti siciliani di scuola dell’infanzia, p…

Principi di concorrenza e obblighi di motivazione nel procedimento di costituzione di società in house

2019

L’articolo analizza la disciplina degli obblighi di motivazione analitica previsti dalla normativa italiana – ed in particolare dal d.lg. 19 agosto 2016, n. 175 (Testo unico in materia di società a partecipazione pubblica) – per la costituzione o l’acquisto di partecipazioni in “società in house”. L’A. sostiene che, sebbene più rigorosa rispetto alla corrispondente disciplina europea, la normativa italiana sia compatibile con i principi, europei e nazionali, in materia di libera concorrenza e auto-determinazione della p.a. This article analyzes the detailed explanation that the public administration must give in order to create “in-house companies” according to Italian legislation addressed…

Le società in house tra autoproduzione e mercato. Alcune considerazioni sulla costituzione di società in house alla luce del d.lgs. 19 agosto 2016 n.…

2020

L'articolo analizza la disciplina inerente la costituzione delle società in house, così come disciplinata dal recente Testo unico sulle società a partecipazione pubblica (D.lgs. n. 175/2016). Particolare attenzione è dedicata agli obblighi motivazionali di cui all'art. 5 TUSP, interpretati nel quadro europeo dell'in house providing, ed al successivo controllo da parte dell'AGCM.

Complete genome sequence of the methanogenic neotype strain Methanobacterium formicicum MF(T.).

2014

The neotype strain Methanobacterium formicicum MFT (DSM1535), a hydrogenotrophic methanogenic Archaeon, was isolated from a domestic sewage sludge digestor in Urbana (IL, USA). Here, the complete genome sequence of the methanogen is reported. The genome is 2,478,074 bp in size, featuring a GC content of 41.23%. M. formicicum MFT encodes several genes predicted to be involved in adaptation to abiotic stress such as high osmolarity. The strain MFT is of biotechnological importance since M. formicicum strains are often found in production-scale biogas plants and it is suggested as a starter culture for the anaerobic biomethanation process. (C) 2014 Elsevier B.V. All rights reserved.

Caractérisation et diagenèse thermique des roches mères pétrolières de la série des Schistes d'âge néocomien moyen-barrémien dans le bassin intérieur…

2006

8 pages; International audience

Poszukiwanie związków biologicznie aktywnych zawartych w oleju z nasion chaulmoogra Hydnocarpus wightianus blume

2023

Coherent conditional probabilities and proper scoring rules

2011

In this paper we study the relationship between the notion of coherence for conditional probability assessments on a family of conditional events and the notion of admissibility with respect to scoring rules. By extending a recent result given in literature for unconditional events, we prove, for any given strictly proper scoring rule s, the equivalence between the coherence of a conditional probability assessment and its admissibility with respect to s. In this paper we focus our analysis on the case of continuous bounded scoring rules. In this context a key role is also played by Bregman divergence and by a related theoretical aspect. Finally, we briefly illustrate a possible way of defin…

Hydrogen isotopes (δ2H) of polyunsaturated fatty acids track bioconversion by zooplankton

2022

1. Organisms at the base of aquatic food webs synthesize essential nutrients, such as omega-3 polyunsaturated fatty acids (n-3 PUFA), which are transferred to consumers at higher trophic levels. Many consumers, requiring n-3 long-chain (LC) PUFA, such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), have limited ability to biosynthesize them from the essential dietary precursor α-linolenic acid (ALA) and thus rely on dietary provision of LC-PUFA. 2. We investigated LC-PUFA metabolism in freshwater zooplankton using stable hydrogen isotopes (δ2H) of fatty acids as tracers. We conducted feeding experiments with the freshwater keystone grazer Daphnia to quantify changes in the δ2…