Search results for " Petr"

Millennial-scale climate variability during the last 12.5 ka recorded in a Caribbean speleothem

2013

Abstract We present a speleothem stable oxygen isotope record for the last 12.5 ka based on two stalagmites from western Cuba. The δ18O signal is interpreted to represent past precipitation variability. Both stalagmites show a pronounced transition from higher δ18O values (indicating drier conditions) to more negative δ18O values (suggesting wetter conditions) between 10 and 6 ka. This transition is also visible in a planktonic δ18O record off Haiti. On orbital timescales, the δ18O value of Caribbean precipitation, thus, strongly resembles the oxygen isotope composition of Caribbean surface water. On millenial timescales, the speleothem δ18O record shows a high correlation to a North Atlant…

Ice age at the Middle–Late Jurassic transition?

2003

A detailed record of sea surface temperatures in the Northern Hemisphere based on migration of marine invertebrate fauna (ammonites) and isotopic thermometry (δ18O values of shark tooth enamel) indicates a severe cooling at the Middle–Late Jurassic transition (MLJT), about 160 Ma ago. The magnitude of refrigeration (1–3°C for lower middle latitudes) and its coincidence in time with an abrupt global-scale fall of sea level documented through sequence stratigraphy are both suggestive of continental ice formation at this time. Ice sheets may have developed over the high-latitude mountainous regions of Far-East Russia. The drastic cooling just post-dated the Middle–Late Callovian widespread dep…

Preface to the Special Issue on ‘‘Applications and developments of magnetic resonance techniques in geosciences’’

2011

Hipofīzes neiroendokrīno audzēju raksturīgo mikro RNS identificēšana un izpēte pacientu plazmā

2021

Cirkulējošās plazmas mikro RNS (miRNS) ir plaši pētīts biomarķieris ļaundabīgo audzēju diagnostikā, bet saistībā ar hipofīzes neiroendokrīnajiem audzējiem (PitNET) tās ir maz izpētītas. Darbā, izmantojot nākamās paaudzes sekvencēšanu, tika analizētas miRNS izmaiņas pacientu plazmas paraugos pirms un 24 stundas pēc ekstirpācijas, kā arī novērtēts miRNS saturs plazmā no pacienta, kuram tika veikta bilaterālā inferioro petrozālo sinusu katetrizācija (BIPSS). Pirms un pēc ekstirpācijas cirkulējošo miRNS sastāvs tika analizētas 34 pacientos un diferenciālekspresijas analīzē statistiski būtiskas izmaiņas (P < 0,05) 24 stundas pēc PitNET ekstirpācijas tika detektētas 22 miRNS, no kurām 15 bija aug…

Animal consciousness : Peter Olivi on cognitive functions of the sensitive soul

2009

Geochemical fingerprints of brannerite (UTi 2 O 6 ): an integrated study

2020

AbstractBrannerite (UTi2O6) is among the major uranium-bearing minerals found in ore deposits, however as it has been long considered as a refractory mineral for leaching it is currently disregarded in ore deposits. Brannerite is found in a variety of geological environments with the most common occurrences being hydrothermal and pegmatitic. On the basis of scanning electron microscopy observations coupled with electron probe micro-analyses and laser ablation inductively-coupled plasma mass spectrometer analyses, this study describes the morphological features and the major- and trace-element abundances of brannerite samples from five hydrothermal and five pegmatitic localities across the w…

Stalin’s critique of the idea of the class character of language

2020

Shedding light on the different Soviet linguistic approaches to the phenomenon of the class character of language, this paper shows that Stalin’s 1950 critique of Nikolaj Marr’s views echoed criticism that had already been addressed to Marr by his contemporaries. The idea of the class character of language did not amount to a single coherent theory, in Soviet linguistics, of social and linguistic structures, but in many cases remained an abstract theoretical construct. Even if some linguists manifestly subscribed to the Marrist dogma, it did not immediately follow that the idea of the class character of language had exerted significant influence on the actual analysis of language material. …

Zur Explizierung als Übersetzungsstrategie : Explikationen in der finnischen Übersetzung von Petra Hammesfahrs Erzählung Der Blinde

2006

Recognition of earthquake-induced damage in the Abakainon necropolis (NE Sicily): results from geo-morphological, geophysical and numerical analyses

2017

Seismotectonic activity and slope instability are a permanent threat in the archaeological site of Abakainon and in the nearby village of Tripi in NE Sicily. In recent times, signs of an ancient earthquake have been identified in the necropolis of Abakainon which dating was ascertained to the first century AD earthquake. The site is located on a slope of Peloritani Mts. along the Tindari Fault Line and contains evidence for earthquake-induced landslide, including fallen columns and blocks, horizontal shift and counter slope tilting of the tomb basements. In this paper, we used an integrated geomorphological and geophysical analysis to constrain the landslide. The research was directed to th…

Sequestrati dalla vendetta: “rimanere chiusi fuori dall’oggetto”

2013

RiassuntoA partire dal loro lavoro di psicoterapeute e attraverso alcuni frammenti clinici che si riferiscono ad un gruppo di adolescenti svoltosi in un quartiere a rischio di Palermo, le Autrici analizzano la dimensione mafiosa non restringendola al solo comportamento criminale; piuttosto declinandola lungo alcuni significanti: non identità e gruppo mafioso che colonizza e sottomette lo psichismo del singolo; fantasmi familiari potenti e spietati che impediscono il costituirsi di sé originali e autonomi; personalità impastate di indifferenza emotiva e vendicatività. Significanti che rendono conto delle vaste aree di desertificazione e pietrificazione – resistenza al cambiamento – avvertita…