Search results for " c.c."

Stable carbon and oxygen isotope fractionation in bivalve (Placopecten magellanicus) larval aragonite

2008

Abstract The relationship between stable isotope composition (δ13C and δ18O) in seawater and in larval shell aragonite of the sea scallop, Placopecten magellanicus, was investigated in a controlled experiment to determine whether isotopes in larval shell aragonite can be used as a reliable proxy for environmental conditions. The linear relationship between δ13CDIC and δ13Caragonite (r2 = 0.97, p  δ 13 C DIC = 1.15 ( ± 0.05 ) ∗ δ 13 C aragonite - 0.85 ( ± 0.04 ) The relationship between δ13CDIC and δ13Caragonite described for P. magellanicus resulted in larval shell aragonite that was depleted on average by 1.82‰ (SD = 0.22‰, range = 1.1–2.1‰) from predicted equilibrium values based on the r…

Carbon cycle and sea-water palaeotemperature evolution at the Middle-Late Jurassic transition, eastern Paris Basin (France).

2014

14 pages; International audience; A very high-resolution carbon and oxygen stable isotope analysis (bulk-carbonate) of a biostratigraphically well-constrained Callovian-Oxfordian series is provided here for the first time. The homogeneity of the clayey series and the weak diagenetic alteration allow the isotopic signal variations to be considered as primary in origin. A prominent and brief negative excursion in the δ13C curve (−2‰), occurring at the start of the Middle Callovian (Jason Zone - Obductum Subzone) and correlated regionally, suggests a possible methane release. The increasing δ13C values thereafter up to the Early Oxfordian, concomitant with a warming episode, highlight the buri…

Bliski Wschód w ogniu. Salaficki dżihadyzm w ujeciu Patricka Cockburna

2015

Celem rozdziału jest omówienie obrazu salafickiego dżihadyzmu w Libii, Iraku i Syrii, który od lat analizuje Patrick Cockburn - komentator i reporter londyńskiego dziennika ,, The Independent". Cockburn, jak ujęła to Claire Fox (The Institute of Ideas), pisze w sposób błyskotliwy, pogłębiony i krytyczny. Autor, najpierw skupił się na przebiegu i skutkach upadku, rządzonej przez pułkownika Muammara Kadafiego, Arabskiej Libijskiej Dżamahiriji, o którym zdecydowały naloty Paktu Północnoatlantyckiego (NATO). W drugiej części tekstu zostały opisane sukcesy Islamskiego Państwa Iraku i Lewantu (Islamie State of Iraq and al-Sham, ISIS), fundamentalistycznych (salafickich) dżihadystów, którzy kontro…

Three existence theorems for weak contractions of Matkowski type

2010

We prove three generalizations of Matkowski’s fixed point theorems for weakly contractions.

Georgii Trapezuntii Rhetoricorum libri quinque. Indicem capitum, ac rerum in hoc opere contentarum, in calcem operus reiecimus

Specialist work that analyzes the various aspects of rhetoric in a technical and preceptual way, referring to the Ciceronian lesson.