Lietuvos kvartero storymes geologiniu strukturu turio ivertinimas [Assessing the volumes of geological structure of the Quaternary
 Delgado G.E., Mora A.J., Contreras J.E., Grima-Gallardo P., Duran S., Munoz M., Quintero M.: "Crystal structure characterization of the quaternary
compounds CuFeAl[Se.sub.3] and CuFeGa[Se.sub.3]", Crystal Research and Technology, Vol.
Cambrian limestone groundwater samples were collected by stratification sampling at leakage points under the shaft, mixed groundwater samples were collected using the drilling method, and groundwater samples in the Quaternary
aquifer were collected from a motor-pumped well for civil use.
This shows that the quaternary
nitrogen present in three oil shale samples has a high thermal stability.
Tables 1 and 2 indicate that the quaternary
ammonium salts are the main substrate in the reaction that results in N-alkylation and the formation of a tertiary amine.
chitosan N-[(-2hydroxy-3-triethyl ammonium) propyl] chitosan chloride (HTCC) was synthesized by reacting chitosan with 3-chloro-2-hydroxy propyl triethyl ammonium chloride, as in the following Schemes:
The P4 network is supported by the Wonca International Classification Committee website under the Quaternary
Prevention rubric (http://www.ph3c.
The dataset is from the quaternary
structure library PiQSi (http://www.PiQSi.org/) built by Levy .
has been characterized by a series of ice ages interrupted by interglacial periods in middle-high latitudes of the Northern Hemisphere.
This temperature is the lifetime temperature of the quaternary
The TEA quatemary ammonium fabric softening material contains at least 10% monoester, by weight of the quaternary
material, and has an IodineValue of between 0-60.The single long chain cationic surfactant is a quatemized amido-amine surfactant and preferably has a methylsulphate counterion.
As the annual conference was held for the first time in the Baltic region (Vilnius, Lithuania to be specific), which experienced substantial glaciation during the Quaternary
period, leaving distinctive geomorphological features, the conference theme was chosen to be "History of Quaternary Geology and Geomorphology." The focus however goes beyond the Baltic to cover the history of research and scholarly debates about Quaternary geology and geomorphology in different parts of the world, as well as some current research topics.