Architecture Separation from Nature During the 20th Century. Lattakia City as an example

The Human society and its development has a great link with architecture that forms a phenomenon with different objectives; the most important of these are the social ones that make what is called "the built environment" that stemmed spontaneously from its role in satisfying human needs, especially the social ones. This role was reduced at the beginnings of the pervious century and the result was a separation between architecture and its community in Lattakia city as a kind of aesthetic and sensual pollution for its buildings keeping it away from its peculiarity as a living phenomenon that is linked with its era and society. A system that moved from identifying the human architecture to strengthen the relation between humans and nature, and the relation between nature and its surrounding, the current situation and reasons that led to this separation between the urban architecture and its natural surroundings. The research concludes with recommendations and conclusions that might be a core to re-establish the relation between the architecture and surroundings through its regaining its role.

Conditions of separating acetone from aqueous sodium chloride solutions and the nature of hydrolysed molecules and ions

The method of separation of acetone from its solutions by the ‘Salting out’ effect was studied. This was interpreted by association of water molecules to the salt ions formed so decreasing the number of free water molecules because of the formation of a new liquid phase the solubility of organic compound in which is less than in water. Separation of acetone, can be explained qualitatively but not quantitatively. Its mechanism and the molecular and ionic constructions can not be fully understood by salting out alone. In order to achieve better explanation, the thermal and concentrations conditions of acetone separation were determined. Results have shown that separation takes place, when a second turbid pronounce phase was taken place by heating the mixture to a certain temperature. A complete separation occurs when reaching some higher temperatures. The state of the hydrolysed molecules of both salt and acetone was shown quantitatively.