Search results for "process"

Late Jurassic (Kimmeridgian–Tithonian) stable isotopes (δ18O, δ13C) and Mg/Ca ratios: New palaeoclimate data from Helmsdale, northeast Scotland

2010

Abstract The data presented here provide the first detailed stable isotope ( δ 18 O, δ 13 C) and geochemical (Mg/Ca) investigation of Kimmeridgian–Tithonian belemnites from the Helmsdale Coast, Scotland, UK. Oxygen and carbon stable isotope values from well preserved specimens range from − 2.8 to + 0.3‰ and from − 2.3 to + 2.8‰ respectively. The oxygen isotope data are consistent with palaeotemperatures of up to 24 °C in the Early Kimmeridgian cymodoce Zone and down to 11 °C in the Mid Tithonian rotunda–fittoni Zones. These estimates are strongly supported by the Mg/Ca data, which also indicate a cooling episode (and very similar palaeotemperatures, 11–22 °C) at this time. The cooling event…

A 2600-year record of past polycyclic aromatic hydrocarbons (PAHs) deposition at Holzmaar (Eifel, Germany)

2014

Polycyclic aromatic hydrocarbons (PAHs) are a proxy for climate- and human-related historical fire activity which has rarely been used beyond 1800 AD. We explored the concentration and composition patterns of PAHs together with other proxies (charcoal, C, N, S, δ13C, δ15N, and δ34S) in a sediment core of Holzmaar as indicators of variations in climate and anthropogenic activity over the past 2600 years. The concentrations of pyrogenic PAHs remained low (< 500 ng g− 1) from the pre-Roman Iron Age (600 BC) until the first significant increases to ca. 1000–1800 ng g− 1 between 1700 and 1750 AD related to regional iron production. The highest increases in pyrogenic PAH concentrations occurred w…

Unraveling environmental histories from skeletal diaries — Advances in sclerochronology

2013

High-resolution proxy archives from aquatic settings are essential to better understand processes and mechanisms of global change. During the last decade, it has become increasingly evident that calcified tissues of bivalve mollusks and cold-water corals, in particular, can significantly increase our knowledge of seasonal to multi-decadal paleoclimate and paleoenvironmental variability in the extratropical oceans and coastal marine settings. Daily, tidal, fortnightly and annual growth patterns of periodically formed skeletal hard parts provide a means to place the proxy record in a precise temporal context. Their extreme longevity coupled with the running similarity between growth increment…

Variation in Sr uptake in the shell of the freshwater gastropod Bithynia tentaculata from Lake Arreo (northern Spain) and culture experiments

2010

The Sr uptake features in Bithynia tentaculata aragonite shells from monthly collections in Lake Arreo (northern Spain) over a two-year period are compared with those from the same species grown in culture experiments with similar waters under controlled temperature. The shell aragonite of B. tentaculata from Lake Arreo formed in isotopic equilibrium with the lake water. A comparison of the stable oxygen isotope values (δ18O) from the shells and waters allowed the selection of suitable shells for Sr uptake studies. The Sr/Ca molar ratio in B. tentaculata shells (Sr/Cashell) from the lake and from the culture experiments positively correlate with some chemical parameters like conductivity an…

«La speranza di avere altri figli»: bios e democrazia nel logos epitaphios di Pericle

2020

Questo contributo esamina, nella consolatio ad parentes che chiude il logos epitaphios, il modo in cui Pericle propone di superare il lutto che ha colpito alcuni padri nel primo anno di guerra, invitandoli in primo luogo a generare altri figli. Ciò consentirebbe a quei padri di superare la potenziale aporia tra l’agire nell'interesse strettamente individuale e l’agire nell’interesse della grandezza della polis, obliando il dolore privato con la procreazione di altri figli e con l’onore garantito dalla memoria pubblica: verrebbe così ripristinato l’equilibrio necessario tra partecipazione democratica, condizione di rischio condivisa e adeguatezza del processo deliberativo. All’interno della …

Beam-induced and cosmic-ray backgrounds observed in the ATLAS detector during the LHC 2012 proton-proton running period

2016

This paper discusses various observations on beam-induced and cosmic-ray backgrounds in the ATLAS detector during the LHC 2012 proton-proton run. Building on published results based on 2011 data, the correlations between background and residual pressure of the beam vacuum are revisited. Ghost charge evolution over 2012 and its role for backgrounds are evaluated. New methods to monitor ghost charge with beam-gas rates are presented and observations of LHC abort gap population by ghost charge are discussed in detail. Fake jets from colliding bunches and from ghost charge are analysed with improved methods, showing that ghost charge in individual radio-frequency buckets of the LHC can be resol…

Борьба с преступностью на современном этапе

1980

В сборнике научных трудов включены научно-исследовательские работы посвященные различным проблемам борьбы с преступностью и совершенствования уголовного и уголовно-процессуального законодательства, рассматриваются и некоторые дискуссионные вопросы криминологии а криминалистики.

Совершенствование форм и методов борьбы с преступностью

1989

Настоящий сборник результат содружества криминалистов трех университетов: Берлинского университета им.Гумбольдта, Щецинского университета и Латвийского государственного университета. Реформа уголовно-процессуального законодательства требует учета всего спектра высказанных суждений о правовой регламентации уголовного судопроизводства и осуществляемой на её основе криминалистической деятельности.

DISCIPLINA INTERNA E DIMENSIONE SOVRANAZIONALE DEL “GIUSTO PROCESSO” IN MATERIA TRIBUTARIA

2012

Translation ‘going social’? Challenges to the (Ivory) Tower of Babel

2010

The discussion of “turns” or “paradigmatic shifts” which we can witness in the last few years in Translation Studies undoubtedly testifies to the discipline’s increasing establishment and recognition within the scientific community and of the increasing practice of a transdisciplinary research. These shifts also include what has been called the “sociological turn”, which comprises the cluster of questions dealing not only with the networks of agents and agencies and the interplay of their power relations, but also the social discursive practices which mould the translation process and which decisively affect the strategies of a text to be translated. This paper seeks to foreground some of t…