Search results for " system"
showing 10 items of 57397 documents
Territorial Intelligence Communicational and Community System (TICCS)
2009
Information and Communication Sciences and Territorial Intelligence concept maintain multiple relations today. The method of territorial observation Catalyse, carried by the European Network of Territorial Intelligence, proposes a modelling under the shape of what Jean-Jacques Girardot calls a territorial intelligence community system (TICS, Girardot 2008). It is by the organization of the structuralization of the information, and by the conception of the process of communication that this kind of system takes life, and it is these aspects which we détail here to illustrate that both notions bring mutually. Experiments of research-action led in France, in Spain and in Europe feed these refl…
Audzēkņu instrumentspēles prasmju un ķermeņa darbības pilnveides mijsakarības trombona spēles mācību procesā mūzikas skolā
2015
Trombona spēles pedagoģija bieži vien izmanto paņēmienus un metodes, kas ir pretrunā ar cilvēka ķermeņa darbības fizioloģiskajiem principiem un var gan kavēt un ierobežot instrumentspēles prasmju attīstību, gan radīt kaitējumus mūziķa veselībai. Ārvalstu mūzikas pedagoģijas zinātniskajā literatūrā arvien lielāks uzsvars tiek likts uz cilvēka darbības psiholoģisko un fizioloģisko mehānismu un likumsakarību integrēšanu pedagoģiskajā procesā. Arī trombona spēles prasmju pilnveidi nepieciešams balstīt cilvēka ķermeņa darbības pamatprincipos. Mērķis: izpētīt trombona spēles prasmju pilnveides teorētiskos aspektus un izstrādāt ķermeņa darbības psihofizioloģiskajos pamatprincipos balstītu vingrinā…
CCDC 1490706: Experimental Crystal Structure Determination
2017
Related Article: Diego Rota Martir, Cristina Momblona, Antonio Pertegás, David B. Cordes, Alexandra M. Z. Slawin, Henk J. Bolink, and Eli Zysman-Colman|2016|ACS Applied Materials and Interfaces|8|33907|doi:10.1021/acsami.6b14050
Hydrothermal methane fluxes from the soil at Lakki plain (Nisyros Island, Greece)
2013
Μετρήσεις φυσικής ροής μεθανίου και διοξειδίου του άνθρακα από το έδαφος πραγματοποιήθηκαν με τη μέθοδο συγκέντρωσης θαλάμου στην περιοχή Λακκί της Καλδέρας της Νισύρου, καλύπτοντας έκταση περίπου 0.06 km2 συμπεριλαμβάνοντας τις περιοχές Καμινάκια, Στέφανος και Αλέξανδρο όπου παρατηρείται έντονη ατμιδική δραστηριότητας. Οι τιμές ροής που μετρήθηκαν σε 77 σημεία κυμαίνονται από –3.4 μέχρι 1420 mg m-2 d-1 για το CH4 και από 0.1, μέχρι 383 g m-2 d-1 για το CO2. Στις τρεις ατμιδικές περιοχές παρουσιάζονται διαφορετικοί ρυθμοί διαφυγής μεθανίου, ιδίως στα Καμινάκια όπου προέκυψαν οι μεγαλύτερες τιμές ροής. Η εξερχόμενη ποσότητα μεθανίου εκτιμάται σε 0.01 t a-1 από μια έκταση περίπου 2500 m2 στον…
α-Conotoxins EpI and AuIB switch subtype selectivity and activity in native versus recombinant nicotinic acetylcholine receptors
2003
The Xenopus laevis oocyte expression system was used to determine the activities of alpha-conotoxins EpI and the ribbon isomer of AuIB, on defined nicotinic acetylcholine receptors (nAChRs). In contrast to previous findings on intracardiac ganglion neurones, alpha-EpI showed no significant activity on oocyte-expressed alpha3beta4 and alpha3beta2 nAChRs but blocked the alpha7 nAChR with an IC50 value of 30 nM. A similar IC50 value (103 nM) was obtained on the alpha7/5HT3 chimeric receptor stably expressed in mammalian cells. Ribbon AuIB maintained its selectivity on oocyte-expressed alpha3beta4 receptors but unlike in native cells, where it was 10-fold more potent than native alpha-AuIB, had…
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…
The Use of Stable Isotope Ratio Analysis to Trace European Sea Bass (D. labrax) Originating from Different Farming Systems
2020
This study aimed to determine whether isotopic ratio mass spectrometry (IRMS) can discriminate farmed European sea bass according to different farming systems and geographic origins. Dicentrarchus labrax of commercial size from three different rearing systems (concrete tank inland, sea cages, and extensive methods in valleys or salt works) were collected at the trading period (autumn&ndash