Intramolecular Cannizzaro desymmetrization of tetraethylene glycol assisted by a cation binding template

Abstract-The synthesis of desymmetrized tetraethylene glycol possessing a benzyl alcohol and a benzoic acid end group via a Cannizzaro reaction is reported. The barium cation template used was found to be essential for a successful transformation

Alcaloides en la flora de Andalucia. III

Se han estudiado 79 especies vegetales características de la flora de Andalucía con objeto de determinar la presencia cualitativa y cuantitativa de alcaloides. Se ha encontrado presencia de alcaloides en 16 especies, de las cuales 6 se describen por primera vez. Se han registrado los espectros de masas de los extractos alcaloídicos de varias especies y se ha establecido su relación con los alcaloides presentes.79 different species from the Andalusian flora have been screened for the presence of alkaloids. Of these, 16 species were found to contain alkaloids and 6 of them are reported for the first time. A relationship between mass spectra and alkaloid contents has been established for several species

Alcaloides en la flora de Andalucía. II

Se han estudiado 105 especies vegetales características de la flora de Andalucía con objeto de determinar la presencia cualitativa y cuantitativa de alcaloides. Se ha encontrado presencia de alcaloides en 31 especies, de las cuales 19 se describen por primera vez.One hundred and five different species from the Andalusian flora have been screened for the presence of alkaloids. Of these, 31 species were found to contain alkaloids and 19 of then are reported for the first time

Alcaloides en la flora de Andalucia, I

Se han estudiado 106 especies vegetales características de la flora de Andalucía con objeto de determinar la presencia cualitativa y cuantitativa de alcaloides. Se ha encontrado presencia de alcaloides en 37 especies, de las cuales 20 (54 0) se describen por primera vez.One hundred and six different species from the Andalusian flora have been screened for the presence of alkaloids. Of these, 37 species were found to contain alkaloids and 20 of them (540) are reported for the first time

Enhanced functionality for donor-acceptor oligothiophenes via Inclusion of BODIPY : synthesis, electrochemistry, photophysics and model chemistry

We have synthesized several new push-pull oligothiophenes based on the BODIPY moiety as the electron acceptor and the well known oligothiophenes substituted with N,N-dialkylamino groups to enhance the electron donor ability. A complete characterization of the electronic properties has been done consisting of their photophysical, electrochemical and vibrational properties. The compounds have been studied after chemical treatment with acids and after oxidation. In this regard, they can be termed as NIR dyes and amphoteric redox electroactive molecules. We have described the presence of dual fluorescence in these molecules and fluorescence quenching either by energy transfer or, in the push-pull molecules, by the electron exchange. The combination of electrochemical and proton reversibility combined with the interesting optical properties of the new species offer an interesting platform for sensor and material applications.DGES, MEC (Spain) and Fundação para a Ciência e a Tecnologia (FCT

Integrative and Collaborative Approach in the Chronic Management of Obesity in Primary and Tertiary Care Setting: Vall Hebron-SAP Muntanya Healthcare Route

Integrative approach; Obesity; Primary careEnfoque integrador; Obesidad; Atención primariaEnfocament integrador; Obesitat; Atenció primàriaIntroduction: In the context of obesity pandemic, the health care providers involved in the primary care should have a significant role. Several guidelines for the management of obesity in primary care were proposed recently. In general lines, these guidelines include recommendation on the baseline assessment, therapy, and algorithm for referral to specialized obesity clinic and follow-up. Nevertheless, at present, there is no guideline or protocol that continuously and bidirectionally links the two settings: primary care and specialized obesity clinic. Methods: We present a model of continuous, bilateral, and integrative interaction between primary care units and reference tertiary care setting in the chronic management of obesity that is already implemented in a public health system. Results: The novelty of our algorithm is that incorporates the support and continuous communication with the specialized obesity clinic of the tertiary care setting from the beginning in the management of a patient with obesity, in a bidirectional manner. Conclusion: This kind of bidirectional and continuous collaboration will help engage health care providers in the management of obesity, optimize efforts, shorten the time until proper intervention, personalize the approach and, finally, save costs for the health system

Phytochemical variations within populations of Platycapnos saxicola Willk

Abstract The amounts of sinoacutine, glaucine and protopine were used to identify three phytochemical groups from the six known populations of Platycapnos saxicola Willk. A combination of GC/MS and 1 H-NMR have been used for the identification and quantitation of the alkaloids.

Programación de mundos virtuales: experiencia docente en un curso no reglado

Una particularidad de las carreras de Informática es que tratan sobre el estudio de una tecnología en constante cambio y evolución. Los cursos complementarios especiales que ofrecen algunas universidades, permiten a los alumnos acceder a las últimas tecnologías de forma práctica sin necesidad de esperar a un cambio en los planes de estudio. Además, su convalidación por créditos de libre elección les permiten aparecer en el expediente académico oficial del alumno. Presentamos nuestra experiencia en uno de estos cursos, dedicado a la creación de mundos virtuales, indicando su estructura y sus características. Esta experiencia nos ha permitido constatar las ventajas de plantear cursos sobre tecnologías emergentes y el interés que despiertan entre los alumnos, especialmente si, como ocurre en este, se caracterizan por su aplicabilidad y su interactividad

Alcaloides en la flora de Andalucia. II

One hundred and five different species from the Andalusian flora have been screened for the presence of alkaloids. Of these, 31 species were found to contain alkaloids and 19 of then are reported for the first time.Se han estudiado 105 especies vegetales características de la flora de Andalucía con objeto de determinar la presencia cualitativa y cuantitativa de alcaloides. Se ha encontrado presencia de alcaloides en 31 especies, de las cuales 19 se describen por primera vez