This thesis studies the non-verbal communication such as the body language in the context of a trade show. The non-verbal communication is one of the primary conveyors of messages and trade shows are one of the major channels were firms attract new customers. However the combination of trade shows and non-verbal communication is overlooked. The method consists of interviews with visitors and observations of the booths and the visitors. The setting was chosen as the annual Hannover Messe were five booths of Swedish firms were studied. The result indicates that firms can further improve their body language. Suggested improvements involve to not having the sales representative work in the booth. This is remarked as a taboo by authors within the area; still this action commonly occurs.  The booth design plays a prominent role in the visitor interactions so does the staffing. The way to approach a visitor is not differing much between the booths in the study however there are three possible ways to physically approach visitors as a sales representative. The best way has not been established and the visitor interviews gave a mixed result regarding this matter. Although the best way is not found all observed booths missed out on dialogs with prospective customers much due to that full attention was not directed towards the visitors. The authors want to emphasis on the adaptation towards visitor as an important pawn in the exhibiting, some sales representatives automatically does this.

Las manifestaciones patológicas de mayor importancia en los bloques de concreto de la albañilería armada son las eflorescencias y las fisuras; las primeras son estéticas y las segundas son estructurales. Estas patologías se originan por la porosidad del bloque; la cual facilita el ingreso de las sales procedentes de la brisa marina y niebla salina presentes en la atmósfera marina. Estas sales, por efecto del viento son arrastradas y depositadas en las viviendas construidas fuera del mar. Una solución a este problema es utilizar un material que minimice el avance de las fisuras y grietas, como son las nanoplaquetas de beterraga azucarera (NPB); las cuales son residuos vegetales procedentes de la industria alimentaria. En la presente investigación se aborda el estudio de los bloques de concreto fisurados, estudiándose para ello algunas propiedades mecánicas, físicas y químicas; los resultados muestran que con la adición de NPB la resistencia a la compresión y flexión aumentan, y la absorción y carbonatación disminuyen cuando se comparan con el concreto sin nanoaditivo. / The most important pathological manifestations in the concrete blocks of the armed masonry are the efflorescence and the fissures; the former are aesthetic and the latter are structural. These pathologies are caused by the porosity of the block; which facilitates the entry of salts from the sea breeze and salt mist present in the marine atmosphere. These salts, as a result of the wind are dragged and deposited in homes built outside the sea. A solution to this problem is to use a material that minimizes the progress of fissures and cracks, such as sugar beet nanoplatelets (BNP); which are plant residues from the food industry. In the present investigation the study of cracked concrete blocks is approached, studying some mechanical, physical and chemical properties; the results show that with the addition of BNP the compressive strength increases, and the absorption and carbonation decrease when compared to concrete without nanoadditive. / Tesis