Interactions between humans and environment in Middle Holocene: comparative study of two Chalcolithic sites to the East of Carpathians

Archaeobotanical, archaeozoological and archaeological studies carried out in Chalcolithic sites to the East of Carpathians (i.g. Poduri-Dealul Ghindaru, and Hoisești), contributed to reconstruct the environmental context of the settlements, and to evidence diverse human activities in the are

CONTRIBUTIONS TO THE STUDY OF VEGETATION IN TINOVUL MARE (POIANA STAMPEI – DISTRICT OF SUCEAVA)

We analyze in this paper the association Vaccinio – Betuletum pubescentis Libbert 1933 from the class Vaccinio – Piceetea Br.-Bl. in Br.-Bl. et al. 1939, from the phytocoenological point of view as well as from the point of view of the bioforms, floristic elements and ecological indice

APRÈS LE DÉLUGE : ÉVOLUTION GÉOMORPHOLOGIQUE DU DELTA DU DANUBE APRÈS LA RECONNEXION MER NOIRE - MÉDITERRANÉE ET SES IMPLICATIONS SUR LE PEUPLEMENT ÉNÉOLITHIQUE / CHALCOLITHIQUE

International audienceIn this work, we document the evolution of the upper Danube delta (i.e. blocked delta) using archaeological, geomorphological and geoarchaeological approaches, after the discovery, in the 90's, of the oldest human settlement (Eneolithic/Chalcolithic) close to Mila 23 district. In-site and out-site fieldwork allows us to refine the Danube delta early evolution from 5,600 to 4,000 cal. yr BC. During this period, it functions like a fresh bayhead delta, flowing into a huge lagoon isolated from the open sea by the Letea-Caraorman spit. Then, lagoon water level rose rapidly due to an eustatic rise, and possibly from an unusual highstand of sealevel resulting from wet conditions. The settlement was then partially flooded and abandoned around 4,450 cal. yr BC.Dans ce travail, l'évolution de la zone interne du delta du Danube est appréhendée à partir de travaux géoarchéologiques et géomorphologiques réalisés dans le district de Mila 23, suite à la découverte de la plus vieille occupation humaine (énéolithique/ chalcolithique) du delta dans les années 90. Les travaux sur site et hors site ont permis de préciser les stades précoces de l'évolution du delta entre 5 600 et 4 000 ans cal. av. J.-C. Celui-ci évolue comme un delta lagunaire en eau douce, s'épandant dans un large lagon séparé de la mer par la ride de Letea-Caraorman. La remontée rapide du niveau lagunaire, sous l'effet de la remontée eustatique et peut-être d'une sur cote liée à un événement humide, ont conduit à une submersion partielle du site et probablement à son abandon vers 4 450 ans cal. av. J.-C

Cardiomiopatia takotsubo – modificări electrocardiografice

Background. Takotsubo cardiomyopathy (CMP) or „broken heart” syndrome is characterized by clinical changes and reversible electrocardiographic signs similar to acute myocardial infarction with normal angiographic arteries in postmenopausal women Objective of the study. Evaluation of electrocardiographic changes in Takotsubo cardiomyopathy. Material and Methods. Analysis of cardiological literature with selection of clinical cases of patients with Takutsubo cardiomyopathy for electrocardiographic criteria detection to make an early diagnosis and the correct choice for the management. Results. Patients with Takotsubo CMP have the following symptoms: constrictive retrosternal pain, inspiratory dyspnea, palpitations and hemodynamic changes. Electrocardiographic pattern: precordial leads, spike torsades caused by an elongated QT interval. Markers of myocardial injury are normal or lightly raised. Echocardiographically we conclude reversible modifications: segmental akinesia, hipokinesia or dyskinesia, diminished contractility of left ventricule. Normal coronary arteries are found at coronaroangiography. Treatment: beta-blockers, converting-enzyme inhibitors, antiarrhythmic drugs, anticoagulants, sedatives. Conclusion. Takutsubo cardiomyopathy is induced by a stress with secondary catecholamine excess, with myocardial acute infarction clinical and paraclinical like signs, with intact coronary arteries and with fast improvement of the disorder evolution (days or weeks) and a low death rate 0-8%. Introducere. Cardiomiopatia (CMP) Takotsubo sau sindromul „inimii frânte”, este caracterizată prin modificări clinice și electrocardiografice reversibile, similare infarctului miocardic acut pe artere coronariene angiografic normale la femeile în postmenopauză cu supraviețuire în 92%. Scopul lucrării. Evaluarea criteriilor electrocardiografice în cardiomiopatia Takotsubo. Material și Metode. Revista literaturii în domeniu cu selectarea cazurilor clinice a pacienților cu cardiomiopatie Takotsubo pentru detectarea criteriilor electrocardiografice în vederea stabilirii precoce a diagnosticului și alegerea managmentului adecvat. Rezultate. Pacienții cu CMP Takotsubo prezintă simptome: dureri retrosternale constrictive, dispnee inspiratorie, palpitații, dereglări hemodinamice. Electrocardiografic depistăm: supradenivelare a segmentului ST cu unde T negative în derivațiile precordiale, torsada vârfurilor cauzată de alungirea intervalului QT. Marcherii injuriei miocitare normali sau ușor crescuți. Ecocardiografic putem depista modificări reversibile: achinezie, hipochinezie sau diskinezie segmentară, scăderea contractilității VS. La coronaroangiografie artere coronariene normale. Tratament: beta blocante, inhibitori ai enzimei de conversie, antiaritmice, anticoagulante, sedative. Concluzii. Cardiomiopatia Takotsubo este indusă de un stres, cu exces de cateholamine secundare, cu semne clinice și paraclinice similare infarctului miocardic acut, pe coronariene intacte cu o îmbunătățire rapidă a evoluției maladiei (zile sau săptămâni) și o rată scăzută a mortalității 0-8%

The subfossil tree deposits from the Garonne Valley and their implications on Holocene alluvial plain dynamics

International audienceSubfossil tree trunks deposits are common in large rivers, but their status as a source for dating alluvial sequences and palaeoenvironmental studies is still discussed. Particularly their origin and the process(es) of deposition as well as a possible remobilization were pointed as a limit to their use to document river alluvial changes. In this work we report the discovery of the largest subfossil trunks deposits in the Garonne valley. These new data are compared to the previous ones. A set of 17 tree trunks and more than 300 smaller wood fragments were collected. The xylologic study shows the prevalence of Quercus and a single occurrence of Ulmus. These two hardwood species are commonly associated with riparian forest. The 14C dating carried out on seven trunks and a single branch of Quercus on the outermost identified growth rings, indicates age ranging from 8400-8000 cal. BP for the oldest fragment (bough) to 4300-4000 cal. BP for the most recent tree trunk. Radiocarbon ages of the trunks are aggregated into two main periods: 5300-5600 cal. BP (four trunks) and 4300-4000 cal. BP (three trunks). The radiocarbon (charcoal) dating of the top of the alluvial sequence overlaying the trunks gives an age between 1965-1820 and 1570-1810 cal. BP, i.e. between the 2nd and the 5th c. AD. In addition, the discovery of two unpublished subfossil tree trunks deposits in Finhan are reported (six trunks). At the light of these results, we discuss previously proposed models for the Garonne floodplain building

Aftermath of the flooding : geomorphological evolution of the Danube delta after the black sea-mediterranean reconnection and its implications on eneolithic settlements

International audienceIn this article we document the evolution of the internal area of the Danube Delta (i.e. the blocked delta) starting from the geo-archaeological and geomorphological investigations performed at Mila 23 district, following the discovery of the oldest human settlement in the Delta. The in-site and out-site field work and coring allowed us to specify the delta's early stages of evolution from 5600 to 4000 CAL BC. During this period, the site evolves as a freshwater bay-head delta flowing into a huge lagoon isolated from the open sea by Letea-Caraorman spits. The rapid sedimentation rate in the lagoon is interpreted as a response to base-level rise and overflooding as a result of humid conditions during 6-5 ky RCC, leading to the partial submersion of the site and probably to its abandonment around 4450 CAL BC

Azimuthal anisotropy of charged jet production in root s(NN)=2.76 TeV Pb-Pb collisions

We present measurements of the azimuthal dependence of charged jet production in central and semi-central root s(NN) = 2.76 TeV Pb-Pb collisions with respect to the second harmonic event plane, quantified as nu(ch)(2) (jet). Jet finding is performed employing the anti-k(T) algorithm with a resolution parameter R = 0.2 using charged tracks from the ALICE tracking system. The contribution of the azimuthal anisotropy of the underlying event is taken into account event-by-event. The remaining (statistical) region-to-region fluctuations are removed on an ensemble basis by unfolding the jet spectra for different event plane orientations independently. Significant non-zero nu(ch)(2) (jet) is observed in semi-central collisions (30-50% centrality) for 20 <p(T)(ch) (jet) <90 GeV/c. The azimuthal dependence of the charged jet production is similar to the dependence observed for jets comprising both charged and neutral fragments, and compatible with measurements of the nu(2) of single charged particles at high p(T). Good agreement between the data and predictions from JEWEL, an event generator simulating parton shower evolution in the presence of a dense QCD medium, is found in semi-central collisions. (C) 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).Peer reviewe

Forward-central two-particle correlations in p-Pb collisions at root s(NN)=5.02 TeV

Two-particle angular correlations between trigger particles in the forward pseudorapidity range (2.5 2GeV/c. (C) 2015 CERN for the benefit of the ALICE Collaboration. Published by Elsevier B. V.Peer reviewe

Event-shape engineering for inclusive spectra and elliptic flow in Pb-Pb collisions at root(NN)-N-S=2.76 TeV

Peer reviewe