Propuestas para una segmentación estratégica del mercado ecológico

[ES] La creciente concienciación medioambiental y la necesidad de atender a las nuevas demandas ecológicas del mercado, obligan a las empresas a desarrollar instrumentos de análisis para ahondar en su conocimiento. La segmentación de mercados es un instrumento analítico válido para inferir características diferenciales de los consumidores ecológicos y adecuar la estrategia de marketing a las preferencias de los segmentos detectados. En este trabajo analizamos las limitaciones de los criterios de segmentación tradicionales y las ventajas de las segmentaciones multicriterio para recoger la complejidad inherente al consumidor ecológico y definir la estrategia de marketing ecológico. Así mismo, presentamos algunas de las segmentaciones del mercado ecológico más relevantes.

Mechanisms involved in Escherichia coli and Serratia marcescens removal during activated sludge wastewater treatment

Wastewater treatment reduces environmental contamination by removing gross solids and mitigating the effects of pollution. Treatment also reduces the number of indicator organisms and pathogens. In this work, the fates of two coliform bacteria, Escherichia coli and Serratia marcescens, were analyzed in an activated sludge process to determine the main mechanisms involved in the reduction of pathogenic microorganisms during wastewater treatment. These bacteria, modified to express green fluorescent protein, were inoculated in an activated sludge unit and in batch systems containing wastewater. The results suggested that, among the different biological factors implied in bacterial removal, bacterivorous protozoa play a key role. Moreover, a representative number of bacteria persisted in the system as free-living or embedded cells, but their distribution into liquid or solid fractions varied depending on the bacterium tested, questioning the real value of bacterial indicators for the control of wastewater treatment process. Additionally, viable but nonculturable cells constituted an important part of the bacterial population adhered to solid fractions, what can be derived from the competition relationships with native bacteria, present in high densities in this environment. These facts, taken together, emphasize the need for reliable quantitative and qualitative analysis tools for the evaluation of pathogenic microbial composition in sludge, which could represent an undefined risk to public health and ecosystem functions when considering its recycling.

Analysis and Use of Information and Communication Tools in Economics of Climate Change

16 p.

Analysis of Spanish text-thesaurus as a complex network

[EN]Based on the theoretical tools of Complex Networks, this work provides a basic descriptive study of a synonyms dictionary, the Spanish Open Thesaurus represented as a graph. We study the main structural measures of the network compared with those of a random graph. Numerical results show that Open-Thesaurus is a graph whose topological properties approximate a scale-free network, but seems not to present the small-world property because of its sparse structure. We also found that the words of highest betweenness centrality are terms that suggest the vocabulary of psychoanalysis: placer (pleasure), ayudante (in the sense of assistant or worker), and regular (to regulate).

Characteristics of the sportsmanship and unsportsmanlike conduct evaluation tools in youth sport

World Conference on Psychology and Sociology 2012