Search results for "GAN"

Ļeņina pioneeri: rakstu krājums pioneeru darbineekeem [Ļeņina pionieri...]

1925

Ŗakstu krājums izdots Jāņa Mušperta un Kārļa Priednieka redakcijā

Max Filke (1855-1911) i jego warsztat kompozytorski na przykładzie preludiów organowych ze zbioru Eduarda Stehlego

2020

Looking at the tradition and heritage of the Silesian land, it can be concluded that over the centuries it has become a culturally distinct European borderland formed by the influence of three mutually interpenetrating cultures: Polish, Czech and German, as well as different religions: Catholic and Protestant. All these factors have made the map of Silesia a peculiar mosaic of multicultural colors, thanks to which this area was marked by the unusually rich legacy of centuries-old activities of distinguished figures for whom the mentioned diversity was a source of creative inspiration. The nineteenth century became an extremely interesting historical moment. Europe was overwhelmed by the spr…

Roku rokā pie darba: "Šalkones" 15 gadi [LU studentu biedrība Šalkone]

1938

Saturs: 1923.-1938. g. Šalkones tapšana un izveidošanās -- Šalkones seniori 15 gados : [portreti] -- Šalkones vecbiedri : [portreti] -- Šalkones aktīvie un pasīvie biedri : [portreti] -- Šalkones kandidāti : [portreti].

Pazemes ūdeņu mikrobioloģiskais sastāvs Viduslatvijas zemienes dienvidu daļā

2018

Mūsdienās kvalitatīvi ūdens resursi kļūst arvien nepieejamāki. Pazemes ūdeņi ir viens no galvenajiem dzeramā ūdens resursiem, tādēļ ir svarīgi apsekot to kvalitāti. Darbā tika pētīts Viduslatvijas zemienes pazemes ūdeņos esošo mikroorganismu sastāvs. Paraugi iegūti no četriem Skaistkalnes urbumiem, četriem avotiem (Bārbeles, Beipartu, Iecavas, Sērenes) un Iecavas upes. Paraugi tika uzsēti uz agarizētām barotnēm, noteiktas baktēriju koloniju veidojošās vienības/ml, izolētas baktēriju tīrkultūras, un ar BBL Crystal™ identifikācijas sistēmu noteiktas baktēriju sugas. Pazemes ūdens paraugos identificētas 16 baktēriju un 3 sēņu sugas. Piecas no sugām pieder pie 2.grupas patogēnām baktērijām. Par…

The chemical composition of the aerial parts essential oil of Achillea cretica L. (Asteraceae) growing wild in Crete (Greece)

2022

Achillea cretica (L.) (Asteraceae) is a suffruticosa camefite plant, mainly distributed in Crete, Aegean Islands, and eastern Mediterranean area. In the present study, the chemical composition of the essential oil from aerial parts of a not previously investigated accession of Achillea cretica, collected in Crete, was analysed by GC-MS. The results showed the presence of large quantity of α-bisabolol (53.88%) followed by the related compound α-bisabolol-oxide (2.76%), and spathulenol (5.94%). Based on the composition of the essential oils of all the other Achillea taxa, several consideration have been carried out.

An arthritogenic alphavirus uses the α1β1 integrin collagen receptor

2005

Ross River (RR) virus is an alphavirus endemic to Australia and New Guinea and is the aetiological agent of epidemic polyarthritis or RR virus disease. Here we provide evidence that RR virus uses the collagen-binding alpha1beta1 integrin as a cellular receptor. Infection could be inhibited by collagen IV and antibodies specific for the beta1 and alpha1 integrin proteins, and fibroblasts from alpha1-integrin-/- mice were less efficiently infected than wild-type fibroblasts. Soluble alpha1beta1 integrin bound immobilized RR virus, and peptides representing the alpha1beta1 integrin binding-site on collagen IV inhibited virus binding to cells. We speculate that two highly conserved regions with…

Discovery of α2β1 integrin ligands : tools and drug candidates for cancer and thrombus

2011

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…

The chemical composition of the aerial parts essential oil of Ferulago nodosa (L.) Boiss. (Apiaceae) growing wild in Crete (Greece)

2023

Ferulago nodosa (L.) Boiss. (Apiaceae) is a species occurring in the Balkan-Tyrrhenian area being present in Crete, Greece, Albania, and probably in Macedonia. Although the western disjointed population of Sicily has been classified as an endemic sub-species, F. nodosa subsp. geniculata (Guss.) Troia & Raimondo, its official acceptance is quite controversial. In order to verify the existence of two different sub-species, we investigated the chemical composition of the essential oil of F. nodosa, collected in Crete (Greece), not previously reported, and we compared it with the previously oil compositions reported in literature. Main constituents of the Cretan accessions of F. nodosa were…

Characterization and antimicrobial activity of the volatile components of the flowers of Magydaris tomentosa (Desf.) DC. collected in Sicily and Alge…

2014

The essential oils of the flowers of Magydaris tomentosa (Desf.) DC. (Apiaceae) collected in Sicily (MSi) and Algeria (MAl), respectively, were obtained by hydrodistillation, and their compositions were analysed. The analyses allowed the identification and quantification of 23 components in MSi and 60 compounds in MAl, respectively, showing a very different profile in the composition of the two populations. The main components of MSi were cembrene (28.2%), α-springene (17.5%) and β-springene (14.8%), also present in MAl but in lesser amount (0.4%, 1.8% and 0.9%, respectively), whereas the principal constituents of MAl were (E)-nerolidol (35.4%), α-costol (13.3%) and β-costol (6.8%). Both MS…