RESUMO
RESUMEN Los desastres socioambientales afectan desigualmente a las zonas rurales en comparación con las urbanas. Esta realidad hace que la movilización de recursos comunitarios sea esencial para afrontar estos eventos. El objetivo de este trabajo fue analizar la construcción de significados derivados del proceso de intervención comunitaria posterior a un desastre (incendio forestal) entre la comunidad La Palma y el equipo de la Fundación Tierra de Esperanza, planteando como pregunta de investigación ¿Qué significados compartidos surgen del proceso de intervención vivenciado por la comunidad de La Palma y el equipo interventor? El estudio tuvo un diseño fenomenológico, utilizando análisis interpretativo del discurso. Los resultados muestran la emergencia de categorías vinculadas a procesos identitarios, ruralidad, y el despliegue de procesos psicosociales durante la experiencia de intervención vinculados con el afrontamiento comunitario, apoyo social, rol clave de liderazgos femeninos y aprendizajes de la comunidad. Se discute cómo la toma de conciencia de esta comunidad rural incrementó su capacidad de agencia ante eventos en los que cuentan con escaso apoyo gubernamental.
ABSTRACT Socio-environmental disasters affect rural areas unequally, compared to urban areas. This reality makes the mobilization of community resources essential when facing these events. The objective of this study was to analyze the construction of meanings derived from the process of community intervention after a disaster (forest fires) between the La Palma community and the Tierra de Esperanza Foundation team, posing as a research question: What shared meanings emerge from the intervention process experienced by the La Palma community and the intervention team? The study had a phenomenological design, using interpretative discourse analysis. The results show the emergence of categories linked to identity processes, rurality, and the unfolding of psychosocial processes during the intervention experience, linked to community coping, social support, the key role of female leadership, and community learning. It is discussed how the awareness of this rural community increased its capacity for agency in the face of events with little government support.
RESUMO
The knowledge of the host-guest complexes using cyclodextrins (CDs) has prompted an increase in the development of new formulations. The capacity of these organic host structures of including guest within their hydrophobic cavities, improves physicochemical properties of the guest. In the case of pesticides, several inclusion complexes with cyclodextrins have been reported. However, in order to explore rationally new pesticide formulations, it is essential to know the effect of cyclodextrins on the properties of guest molecules. In this study, the inclusion complexes of bentazon (Btz) with native ßCD and two derivatives, 2-hydroxypropyl-ß-cyclodextrin (HPCD) and sulfobutylether-ß-cyclodextrin (SBECD), were prepared by two methods: kneading and freeze-drying, and their characterization was investigated with different analytical techniques including Fourier transform infrared spectroscopy (FT-IR), differential thermal analysis (DTA), X-ray diffractometry (XRD) and differential pulse voltammetry (DPV). All these approaches indicate that Btz forms inclusion complexes with CDs in solution and in solid state, with a stoichiometry of 1:1, although some of them are obtained in mixtures with free Btz. The calculated association constant of the Btz/HPCD complex by DPV was 244±19 M(-1) being an intermediate value compared with those obtained with ßCD and SBECD. The use of CDs significantly increases Btz photostability, and depending on the CDs, decreases the surface tension. The results indicated that bentazon forms inclusion complexes with CDs showing improved physicochemical properties compared to free bentazon indicating that CDs may serve as excipient in herbicide formulations.