Preparation And Characterization Of Cassiterite (SNO2) And Its Application In The Hydrogenation Of Methyl Esters.

Tin oxide (IV) or cassiterite obtained by the controlled precipitation method was characterized by different physical and chemical techniques such as TEM, surface area, XRD and RTP for the determination of the morphology, particle size distribution and reduction temperature of the system and then, a pure catalyst and doped with tin (Sn) and nickel (Ni) is employed in the hydrogenation of methyl esters from palm oil. Monitoring the reaction was carried out by gas chromatography and it was found that the Sn-doped system showed a higher activity towards hydrogenation. The products obtained during and after the reaction were analyzed by FT-IR. We found that the hydrogenation of double bonds of the carbon chain was the main reaction, but there were also products resulting from isomerization and surprisingly a small fraction of fatty alcohols with tin-based catalyst Sn/SnO2

Territory (ies) and multicultural identities. The agoras as spaces of identity in the communities of the Cauca corridor.

The Cauca corridor, comprised between Santander de Quilichao and Piendamó populations, is one of the many territorial realities that enrich both cultural and ethnographic diversity of Colombia. Many “new” dynamics are occurred in this region about this diversity, and the project that we present is focused on – from the creation-researching- and by means of a direct interpretation that territorial diversity. Based on the photography and the sound landscape, we pretend to show a possible idea of cultural territory (ies), and it is surrounding the exhibiting sketch that this idea of “habitat” has been forming. The difficulties that the project tackles put the focal point to demonstrate that “other” visions are possible thanks to the reflective spaces suggested by visual design and art; and especially define the problem around the new identitarian narratives arose from post-conflict. Supported by qualitative methodology, ethnographically, the project goes deep into the exploration of the multicultural territoriality. First, developing inspection dynamics and documentation of visual and sound perspectives around the socio-cultural speech and then, implementing from visual fields (photographic image) and sound (soundscapes) a contest understanding, of actors and/ or “places”. We wanted to show a territory self-constructed as a defined cultural imaginary

Territory (ies) and multicultural identities. The agoras as spaces of identity in the communities of the Cauca corridor.

The Cauca corridor, comprised between Santander de Quilichao and Piendamó populations, is one of the many territorial realities that enrich both cultural and ethnographic diversity of Colombia. Many “new” dynamics are occurred in this region about this diversity, and the project that we present is focused on – from the creation-researching- and by means of a direct interpretation that territorial diversity. Based on the photography and the sound landscape, we pretend to show a possible idea of cultural territory (ies), and it is surrounding the exhibiting sketch that this idea of “habitat” has been forming. The difficulties that the project tackles put the focal point to demonstrate that “other” visions are possible thanks to the reflective spaces suggested by visual design and art; and especially define the problem around the new identitarian narratives arose from post-conflict. Supported by qualitative methodology, ethnographically, the project goes deep into the exploration of the multicultural territoriality. First, developing inspection dynamics and documentation of visual and sound perspectives around the socio-cultural speech and then, implementing from visual fields (photographic image) and sound (soundscapes) a contest understanding, of actors and/ or “places”. We wanted to show a territory self-constructed as a defined cultural imaginary

SERS-based molecularly imprinted plasmonic sensor for highly sensitive PAH detection

A novel hybrid plasmonic platform based on the synergetic combination of a molecularly imprinted polymer (MIP) thin film with Au nanoparticle (NPs) assemblies, noted as Au@MIP, was developed for surface-enhanced Raman scattering (SERS) spectroscopy recognition of polycyclic aromatic hydrocarbons (PAHs). While the MIP trapped the PAH close to the Au surface, the plasmonic NPs enhanced the molecule's Raman signal. The Au@MIP fabrication comprises a two-step procedure, first, the layer-by-layer deposition of Au NPs on glass and their further coating with a uniform MIP thin film. Profilometry analysis demonstrated that the thickness and homogeneity of the MIP film could be finely tailored by tuning different parameters such as prepolymerization time or spin-coating rate. Two different PAH molecules, pyrene or fluoranthene, were used as templates for the fabrication of pyrene- or fluoranthene-based Au@MIP substrates. The use of pyrene or fluoranthene, as the template molecule to fabricate the Au@MIP thin films, enabled its ultradetection in the nM regime with a 100-fold improvement compared with the nonimprinted plasmonic sensors (Au@NIPs). The SERS data analysis allowed to estimate the binding constant of the template molecule to the MIP. The selectivity of both pyrene- and fluoranthene-based Au@MIPs was analyzed against three PAHs of different sizes. The results displayed the important role of the template molecule used for the Au@MIPs fabrication in the selectivity of the system. Finally, the practical applicability of pyrene-based Au@MIPs was shown by performing the detection of pyrene in two real samples: creek water and seawater. The design and optimization of this type of plasmonic platform will pave the way for the detection of other relevant (bio)molecules in a broad range of fields such as environmental control, food safety, or biomedicine.Fil: Castro-Grijalba, Alexander. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina. Universidad Nacional de San Luis. Facultad de Ciencias de la Salud. Laboratorio de Quimica Analitica Ambiental.; Argentina. Universidad de Vigo; EspañaFil: Montes-García, Verónica. Universidad de Vigo; EspañaFil: Cordero-Ferradás, María José. Universidad de Vigo; EspañaFil: Coronado, Eduardo A.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: Pérez-Juste, Jorge. Universidad de Vigo; EspañaFil: Pastoriza-Santos, Isabel. Universidad de Vigo; Españ

Protocolo de manejo nutricional en pacientes con accidente cerebro vascular

La enfermedad o accidente cerebro vascular es una patología neurológica de gran de impacto en SaludPública debido a su alta incidencia. Es la tercera causa más común de muerte después de la enfermedadcoronaria y de todos los tipos de cáncer y la primera causa de invalidez y una de las causas principales dediscapacidad a largo plazo. La disfagia es un síntoma muy frecuente presente en este tipo de pacientes, estoaumenta la incidencia de desnutrición y neumonías por aspiración. Todos los pacientes ingresados condiagnóstico de accidente cerebrovascular deben ser sometidos a una evaluación nutricional al ingresohospitalario, a fin de diagnosticar en forma precoz la presencia de disfagia, y el estado nutricional. Estospacientes por lo general se encuentran desnutridos al ingreso o en peligro de desnutrición, por la que el iniciode una terapia nutricional oportuna, constituye parte fundamental del tratamiento para una evoluciónfavorable en esta patología

Legal and Forensic Medicine Specialty in Spain: the consolidation by the medical residency system

The specialty of Legal and Forensic Medicine (Medicina Legal y Forense [MLF]) emerged through the need for doctors to serve the Justice Administration as advisors to the Courts and Tribunals in the resolution of medical/biological issues arising in the field of law enforcement, establishing a bridge between medicine and law. MLF started in 1843 when Pere Mata's plan to reform the teaching of Medicine at Spanish universities included MLF as an individual discipline in the studies of Medicine and Surgery, and the first MLF chair was created at the Universidad Central of Madrid. Later, in 1855, the role of the forensic doctor was established with the enactment of the Health Law, which led to the creation of the Corps of Forensic Doctors (Cuerpo de Médicos Forenses [CMF]) in 1862.1 Since then, academic legal medicine and the professional legal medicine practiced by the forensic doctors of the Justice Administration have become somewhat separated. On the one hand, academic MLF, under the university faculty, has been primarily concerned with the provision of undergraduate teaching, as well as MLF research and knowledge transfer. On the other hand, the practical aspects involved in assisting the Justice Administration has fallen in the main to professional MLF

First approach to the trophic ecology and diet of the rainbow runner, elagatis bipinnulata (quoy and amp; gaimard, 1825) (pisces: carangidae), in the central colombian caribbean

The rainbow runner (Elagatis bipinnulata) scores high in trophic level (4.24) but it is not a voracious fish (Q/B = 10.8). Its diet is dominated by the dwarf herring (Jenkinsia lamprotaenia), eats more in the dry season, than in the rainy season and significantly more in the afternoon that in the morning suggesting preference for daylight feeding. Primera aproximación a la ecología trófica del salmón, Elagatis bipinnulata (Quoy y Gaimard, 1825) (Pisces: Carangidae), en el Caribe central colombianoEl salmón (Elagatis bipinnulata) marca alto en nivel trófico (4,24) pero no es un pez voraz (Q/B = 10,8). Su dieta está dominada por la sardina enana (Jenkinsia lamprotaenia), come más en la época seca que en la época de lluvia y come significativamente más en la tarde que en la mañana, lo cual sugiere preferencia por la alimentación diurna

Identifying associations between diabetes and acute respiratory distress syndrome in patients with acute hypoxemic respiratory failure: an analysis of the LUNG SAFE database

Background: Diabetes mellitus is a common co-existing disease in the critically ill. Diabetes mellitus may reduce the risk of acute respiratory distress syndrome (ARDS), but data from previous studies are conflicting. The objective of this study was to evaluate associations between pre-existing diabetes mellitus and ARDS in critically ill patients with acute hypoxemic respiratory failure (AHRF). Methods: An ancillary analysis of a global, multi-centre prospective observational study (LUNG SAFE) was undertaken. LUNG SAFE evaluated all patients admitted to an intensive care unit (ICU) over a 4-week period, that required mechanical ventilation and met AHRF criteria. Patients who had their AHRF fully explained by cardiac failure were excluded. Important clinical characteristics were included in a stepwise selection approach (forward and backward selection combined with a significance level of 0.05) to identify a set of independent variables associated with having ARDS at any time, developing ARDS (defined as ARDS occurring after day 2 from meeting AHRF criteria) and with hospital mortality. Furthermore, propensity score analysis was undertaken to account for the differences in baseline characteristics between patients with and without diabetes mellitus, and the association between diabetes mellitus and outcomes of interest was assessed on matched samples. Results: Of the 4107 patients with AHRF included in this study, 3022 (73.6%) patients fulfilled ARDS criteria at admission or developed ARDS during their ICU stay. Diabetes mellitus was a pre-existing co-morbidity in 913 patients (22.2% of patients with AHRF). In multivariable analysis, there was no association between diabetes mellitus and having ARDS (OR 0.93 (0.78-1.11); p = 0.39), developing ARDS late (OR 0.79 (0.54-1.15); p = 0.22), or hospital mortality in patients with ARDS (1.15 (0.93-1.42); p = 0.19). In a matched sample of patients, there was no association between diabetes mellitus and outcomes of interest. Conclusions: In a large, global observational study of patients with AHRF, no association was found between diabetes mellitus and having ARDS, developing ARDS, or outcomes from ARDS. Trial registration: NCT02010073. Registered on 12 December 2013