Search results for "Lenin"
showing 10 items of 22 documents
Non-hydrolysable macromolecular constituents from outer walls of Chlorella fusca and Nanochlorum eucaryotum
1992
Abstract Many green microalgae possess a thin trilaminar outer wall (TLS) with a very high resistance to chemical degradation. TLS are known to play an important protective role in living cells. They are also selectively preserved during fossilization and thus provide a major contribution to the fossil organic matter of a number of sedimentary rocks. However, little information is available on TLS chemical structure. Examination of the TLS of Chlorella fusca (a lacustrine Chlorophycea) and of Nanochlorum eucaryotum (a recently discovered marine Chlorophycea) indicated that (i) they exhibit morphological features commonly observed in other green microalgae, (ii) their non-hydrolysable macrom…
Suomi, Venäjä ja Neuvostoliitto Lenin-museon näyttelyiden kuvaamina
2017
Tutkielma käsittelee Lenin-museon vuosien 1972 ja 2016 näyttelyitä. Tarkastelen, kuinka näyttelyt kuvaavat museon muuttuneita suhteita Leniniin, kommunismiin, Neuvostoliittoon ja Venäjään. Käsittelen myös näyttelyn tekstien ja fyysisten ominaisuuksien kehittymistä. Minusta on ajankohtaista tarkastella Suomen ja Venäjän suhteiden kehittymisen historiaa Venäjän ja länsimaiden suhteiden kiristyessä muun muassa Ukrainan kriisin vuoksi. Tutkielma toteutetaan vertaamalla vuoden 1972 näyttelyn luetteloa ja omia havaintojani vuoden 2016 näyttelystä. Analyysissäni hyödynnän kriittistä diskurssianalyysiä ja näyttelyanalyysiä. Vuoden 2016 näyttelyn dokumentoinnissa kerään aineistoni valokuvaamalla, vi…
Vida de Lenin : dedicada a los trabajadores del Universo
Dysfasiakuntoutuksen muutos kahden tapausselosteen valossa
1998
Modernista postmoderniin : tutkijaliittolaisen marxismin kehityslinjoja 1970-luvulta 1990-luvulle
1997
In vivo monitoring of alkaloid metabolism in hybrid plant cell cultures by 2D cryo-NMR without labelling
2003
Non-invasive measurements of alkaloid metabolism in plant cell suspension cultures of a somatic hybrid from Rauvolfia serpentina Benth. ex Kurz and Rhazya stricta Decaisne were carried out. When cell samples were taken sequentially from a stock feeding experiment, measuring times for in vivo NMR of 40 min were sufficient for following conversions of alkaloids at the natural abundance of 13C. Degradation of ajmaline added to the cells at 1.6 mM concentration to raumacline could be monitored after 96 h on a standard 800 MHz NMR instrument (Avance 800). Feeding vinorine an intermediate of ajmaline biosynthesis at 1.8 mM showed with a 500 MHz CryoProbe that the alkaloid enters two metabolic rou…
Enzymatic Formation of Raucaffricine, the Major Indole Alkaloid ofRauwolfia serpentinaCell-Suspension Cultures
1991
The major alkaloid from Rauwolfia serpentina cell-suspension cultures, the glucoalkaloid raucaffricine (2), was enzymatically formed from vomilenine (1) and UDPG in presence of microsomal-bound enzyme. This glucosyltransferase exhibits a relatively high substrate specificity with strong preference for 1 and UDPG. The apparent Km values for 1 and UDPG were 40 μM and 0.8 mM, respectively, for raucaffricine formation. Optimum transferase activity was observed at 50° and pH 6.3. The taxonomic distribution of this enzyme seems to be very limited because transferase can he exclusively detected in raucaffricine-producing plant cells.