Search results for "I h"

A review of natural and modified betulinic, ursolic and echinocystic acid derivatives as potential antitumor and anti-HIV agents.

2003

The aim of this review is to update current knowledge on the betulinic, ursolic and echinocystic acids and their natural and semisynthetic analogs, focussing on their cytotoxic and anti-HIV activities. Then, the last results of the authors' team on unusual semisynthetic derivatives of these triterpenoids will be presented in order to establish structure/activity relationships.

Testing Hawking particle creation by black holes through correlation measurements

2010

Hawking's prediction of thermal radiation by black holes has been shown by Unruh to be expected also in condensed matter systems. We show here that in a black hole-like configuration realized in a BEC this particle-creation does indeed take place and can be unambiguously identified via a characteristic pattern in the density-density correlations. This opens the concrete possibility of the experimental verification of this effect.

PIGNATELLI, Ettore

2015

Profilo biografico di Ettore Pignatelli, viceré di Sicilia, conte di Monteleone (morto a Palermo nel 1535) Biographical profile of Hector Pignatelli, viceroy of Sicily, count of Monteleone (died Palermo, 1535)

Reseña histórica del Real Colegio de Corpus-Christi, fundado por el Beato Juan de Ribera

1868

SFINGOLIPIDOMICA DELLA NON ALCOHOLIC FATTY LIVER DISEASE IN BIOPSIE DI SOGGETTI CON STEATOSI METABOLICA E DA INFEZIONE DI HCV. STUDIO CINETICO DELLA …

2014

How do we understand other's intentions? - An implementation of mindreading in artificial systems -

Hidrotermālās apstrādes procesa ietekme uz Ca un Sr hidroksilapatītiem un to analīze

2015

Hidrotermālās apstrādes procesa ietekme uz Ca un Sr hidroksilapatītiem un to analīze. Aksjonova V., zinātniskā vadītāja: docente Dr.chem. Osīte A.. Bakalaura darbs, 28 lpp., 7 attēli, 25 literatūras avoti, 6 pielikumi, latviešu valodā. Darbā veikta ar stronciju aizvietotu hidroksilapatītu un hidroksilapatītu sintēze, sintezēto paraugu hidrotermāla apstrāde un iegūto paraugu raksturošana ar XRD un FTIR metodēm. Bakalaura darbā apkopota literatūra par hidroksilapatītu, stroncija hidroksliapatītu un peroksiapatītu struktūru, īpašībām un izmantošanu, stroncija un ūdeņraža peroksīda īpašībām. Apkopota informācija arī par izmantotajām analīzes metodēm.

Ar stronciju aizvietotu peroksīdapatītu sintēze

2016

Ar stronciju aizvietotu peroksīdapatītu sintēze. Lorence K., zinātniskā vadītāja Dr. ķīm., Osīte A. Maģistra darbs, 42 lappuses, 29 attēli, 1 tabula, 40 literatūras avoti, 2 pielikumi. Latviešu valodā. Darbā veikta ar stronciju aizvietotu kalcija fosfātu peroksīdapatītu sintēze. Literatūras apskatā apkopota informācija par hidroksilapatītu un peroksīdapatītu uzbūvi un sintēzēm un iespējamajām to analīzes metodēm.

Rtp1p Is a Karyopherin-Like Protein Required for RNA Polymerase II Biogenesis

2013

The assembly and nuclear transport of RNA polymerase II (RNA pol II) are processes that require the participation of many auxiliary factors. In a yeast genetic screen, we identified a previously uncharacterized gene, YMR185w (renamed RTP1), which encodes a protein required for the nuclear import of RNA pol II. Using protein affinity purification coupled to mass spectrometry, we identified interactions between Rtp1p and members of the R2TP complex. Rtp1p also interacts, to a different extent, with several RNA pol II subunits. The pattern of interactions is compatible with a role for Rtp1p as an assembly factor that participates in the formation of the Rpb2/Rpb3 subassembly complex and its bi…

Specific Defects in Different Transcription Complexes Compensate for the Requirement of the Negative Cofactor 2 Repressor in Saccharomyces cerevisiae

2007

Abstract Negative cofactor 2 (NC2) has been described as an essential and evolutionarily conserved transcriptional repressor, although in vitro and in vivo experiments suggest that it can function as both a positive and a negative effector of transcription. NC2 operates by interacting with the core promoter and components of the basal transcription machinery, like the TATA-binding protein (TBP). In this work, we have isolated mutants that suppress the growth defect caused by the depletion of NC2. We have identified mutations affecting components of three different complexes involved in the control of basal transcription: the mediator, TFIIH, and RNA pol II itself. Mutations in RNA pol II in…