Effect of the Culture Nutrients on the Biomass and Lipid Productivities of Microalgae Dunaliella tertiolecta Teresa M. Mata*, Ricardo Almeida, Nídia S. Caetano LEPAE – Laboratory for Process, Environmental and Energy Engineering, Faculty of Engineering, University of Porto (FEUP), R. Dr. Roberto Frias S/N, 4200-465 Porto, Portugal Department of Chemical Engineering, School of Engineering (ISEP)...

We introduce an e cient algorithm to compute the homomorphism induced in (relative) homology by a continous map. The algorithm is based ∗Research supported in part by NSF Grant 0107396 †Partially supported by the Polish Committee for Scienti c Research (KBN), grant no. 2 P03A 041 24. ‡Partially supported by the Polish Committee for Scienti c Research (KBN), grant no. 2 P03A 041 24. Permanent ad...

Instituto de Engenharia Mecânica e Gestão Industrial (INEGI). Faculdade de Engenharia da Universidade do Porto (FEUP). Departamento de Engenharia Mecânica e Gestão Industrial (DEMEGI). Rua Dr. Roberto Frias, s/n – 4200-465 Porto, Portugal. e-mail: {victor.albuquerque, tavares}@fe.up.pt 2 Centro de Investigação e Desenvolvimento em Engenharia Mecânica (CIDEM). Departamento de Engenharia Mecânica...

El Estado de Guanajuato es el principal productor trigo (Triticum aestivum L.) la región Bajío que segunda zona productora este cereal en México. En ciclo otoño-invierno (OI)1998-99 se sembraron 98 072 ha trigo, con una producción 510 894 t, logr´ó gran medida satisfacer demanda regional. Sin embargo, siembran predominantemente variedades gluten débil y poco fuerte (3900 1999-00), cuya por indu...

Euphorbia thymifolia (Euphorbiaceae) is a prostrate herb, distinguished from similar species by the combination of serrate leaf margin, puberulous ovary/fruit with capitate styles and pedicel not accrescent in fruit, splitting involucre cyathia during maturation. In this paper we present first record E. for state Acre, Alto Juruá region, municipality Cruzeiro do Sul, residential sidewalk crack ...