Search results for "Bain"
showing 10 items of 422 documents
Effectiveness of theophylline to increase cyclic AMP levels and force of contraction in electrically paced guinea-pig auricles. Comparison with isopr…
1977
The effects of theophylline (3×10−5 M–5×10−3 M), isoprenaline (10−6 M), excess calcium (7.2 mM) and ouabain (3×10−7 M) on force of contraction and c-AMP content were studied in electrically driven (frequency 3 Hz) left auricles isolated from guinea pigs pretreated with reserpine.
Quelles adéquations des marchés fonciers et immobiliers aux transformations socio-économiques des familles dans les territoires périurbains ?
2013
Economical influence and competition into urban area. Measuring test
1986
Définition et propriétés générales de l'indicateur d'influence effective, illustration sur un exemple numérique (agglomération découpée en six zones). Résultats d'une application au cas de l'agglomération dijonnaise (découpage en 20 quartiers; les douze communes périphériques sont retenues dans l'application). On relie onze fonctions de biens et de services: alimentation; équipement de la personne, équipement de la maison; autres commerces spécialisés; pharmacie, optique, orthopédie; services médicaux; services paramédicaux; bureaux de poste; banques et établissements financiers; éducation secondaire spécialisée; hôtellerie. Test de plusieurs simulations relatives à diverses répartitions de…
Modeling urban growth by cellular automata
1996
International audience; The structural development of human settlements can be characterized as a complex highly feedbacketed process. The assumption that this process is governed by rather few fundamental laws stimulated a considerable research in the field of urban growth during the last decade. Aiming at the comprehension of the basic underlying dynamics different approaches from the field of self-organizing systems have been proposed. In this paper we present a "cellular model" of urban growth dynamics based on the work of White, Engelen and Uljee. As a starting point this model throws some light on the mechanism of urban growth. But even more important, it raises a lot of questions con…
Numerical simulation of heat transfer, fluid flow and elements diffusion during laser welding of dissimilar steels
2017
The design of new steel grades offering equivalent mechanical performances for lower thicknesses and the added value with the possibility to join two different steel grades, require development and control of joining processes. Thanks to high precision and good flexibility, the laser welding became one of the most used processes for joining of dissimilar welded blanks. The prediction of local chemical composition in the weld formed between dissimilar steels in function of the welding parameters is essential because the dilution rate and the distribution of alloying elements in the melted zone determine the final tensile strength of the weld. The goal of the present study is to create and to…
COMPARATIVE STUDY ON THE ELECTROPHYSIOLOGICAL EFFECTS OF MONENSIN ON ATRIAL AND VENTRICULAR MUSCLE PREPARATIONS OF GUINEA-PIG HEART
1995
The effects of monensin (10 µmol/L) alone and in presence of verapamil (3 µmol/L) or ouabuin (1 µmol/L) or glibenclamide (10 µmol/L) or BaCl2 separately were studied on the electrophysiological properties represented by force of contraction, duration of action potential, and membrane resting potential of isolated atrial and ventricular muscle of guinea –pig heart. Monensin induced a transient increase in the force of contraction of atrial and ventricular muscles. It caused a decrease in action potential duration of papillary muscle, this effect was reversed by glibenclamide. Monensin increased the action potential duration of atrial muscle in absence or presence of glibenclamide. In presenc…
Sudrabaino mākoņu novērojumi Latvijā 1957.-1983.gadā: žurnālu saturs un digitalizēšanas metodika
2022
Latvijas Astronomijas biedrības arhīvā glabājas mezosfēras mākoņu (MC) novērojumu žurnāli par laika posmu no 1957. līdz 1983. gadam.. Tā kā pēdējos gados ir pieaugusi interese par MK novērojumu vēsturisko statistiku klimata pārmaiņu kontekstā, ir veikta šo žurnālu digitalizācija. Materiālā ir aprakstīts novērojumu žurnālu saturs un to digitalizācijas metodika. Paši digitalizētie žurnāli ir pieejami šajā LU repozitorija kolekcijā, kā MS Excel faili.
Novērotāju piezīmes, kas apjoma dēļ nav ievietotas tieši digitalizētajos žurnālos
2022
Mezosfēras mākoņu novērojumos sastopamas novērotāju piezīmes, kas sava apjoma dēļ nav ievietojamas žurnāla failā. Vairākos gadījumos novērotāji žurnālos ir arī pievienojuši grafiskas skices. Attiecīgās piezīmes tāpēc ievietotas atsevišķā teksta failā. Tās attiecas uz visu novērojumu periodu no 1957. līdz 1983.gadam un ir sakārtotas hronoloģiskā secībā. --//-- Mesospheric Cloud observation logs contain notes made by observers in the form of longer texts or graphic sketches. They are not included in the log files, as it would make them difficult to see and use. This volume contains notes on the entire observation period 1957-1983. They are arranged by observation sites in chronological order.