Monitoring of virgin coconut oil (VCO) adulteration with palm oil using fourier transform infrared spectroscopy.

Virgin coconut oil (VCO) may be adulterated with cheaper oils, such as palm oil (PO). Thus, the detection and quantification of VCO adulteration with PO was monitored using Fourier transform infrared (FTIR) spectroscopy, combined with chemometrics of partial least square (PLS) and discriminant analysis at frequency regions of 3,010–3,000, 1,660–1,650 and 1,120–1,105/cm. Attenuated total reflectance (ATR) measurements were made on pure VCO and that adulterated with varying concentrations of PO (0.5–50% w/w in VCO). PLS calibration exhibited a good relationship between actual and FTIR-predicted values with coefficient of determination (R2) of 0.999 and standard error of calibration of 0.533. The cross validation was performed by removing one standard at a time, and the final R2 value of 0.996 and standard error of prediction of 0.953 were obtained. The discriminant analysis using seven principal components was able to classify pure VCO and that adulterated with PO

Analysis of cod-liver oil adulteration using Fourier Transform Infrared (FTIR) spectroscopy.

Analysis of the adulteration of cod-liver oil with much cheaper oil-like animal fats has become attractive in recent years. This study highlights an application of Fourier transform infrared (FTIR) spectroscopy as a nondestructive and fast technique for the determination of adulterants in cod-liver oil. Attenuated total reflectance measurements were made on pure cod-liver oil and cod-liver oil adulterated with different concentrations of lard (0.5–50% v/v in cod-liver oil). A chemometrics partial least squares (PLS) calibration model was developed for quantitative measurement of the adulterant. Discriminant analysis method was used to classify cod-liver oil samples from common animal fats (beef, chicken, mutton, and lard) based on their infrared spectra. Discriminant analysis carried out using seven principal components was able to classify the samples as pure or adulterated cod-liver oil based on their FTIR spectra at the selected fingerprint regions (1,500–1,030 cm−1)

« Je leur dis souvent : “faites-le comme si vous chantiez une chanson” »

Après s’être fait particulièrement remarquer depuis deux ans avec son adaptation des Misérables de Victor Hugo, Tempête sous un crâne, et avec l’Opérette, un acte de l’Opérette imaginaire de Valère Novarina, la compagnie Air de Lune menée par Jean Bellorini, jeune metteur en scène, présente cette année une nouvelle création, Paroles Gelées, épopée fantaisiste autour de l’œuvre de Rabelais. La troupe dans Paroles Gelées © Pierre Dolzani Laura Obled. Dans vos deux derniers spectacles, Tempêt..

La era de la Tecnología y los nuevos medios probatorios. El correo Electrónico y su valor probatorio

Con la utilización de las nuevas tecnologías en las relaciones comerciales, se abandona el soporte de los mensajes sobre papel y se lo reemplaza por soportes magnéticos o electrónicos. Sin dudas el comercio electrónico es un reflejo del proceso de globalización mundial de la economía donde el espacio y el tiempo se desnaturalizan. En la evolución del comercio electrónico donde el derecho, como regulador de conductas humanas, es llamado a conformar el necesario estado de seguridad jurídica, por ejemplo, ante la hipótesis de un conflicto de intereses generado por el incumplimiento de obligaciones emergentes de un contrato celebrado electrónicamente

NF-Y recruitment of TFIID, multiple interactions with histone fold TAF(II)s

The nuclear factor y (NF-Y) trimer and TFIID contain histone fold subunits, and their binding to the CCAAT and Initiator elements of the major histocompatibility complex class II Ea promoter is required for transcriptional activation. Using agarose-electrophoretic mobility shift assay we found that NF-Y increases the affinity of holo-TFIID for Ea in a CCAAT- and Inr-dependent manner. We began to dissect the interplay between NF-Y- and TBP-associated factors PO1II (TAF(II)s)-containing histone fold domains in protein-protein interactions and transfections. hTAF(II)20, hTAF(II)28, and hTAF(II)18-hTAF(II)28 bind to the NF-Y B-NF-YC histone fold dimer; hTAF(II)80 and hTAF(II)31-hTAF(II)80 interact with the trimer but not with the NF-YB-NF-YC dimer. The histone fold alpha2 helix of hTAF(II)80 is not required for NF-Y association, as determined by interactions with the naturally occurring splice variant hTAF(II)80delta. Expression of hTAF(II)28 and hTAF(II)18 in mouse cells significantly and specifically reduced NF-Y activation in GAL4-based experiments, whereas hTAF,120 and hTAF(II)135 increased it. These results indicate that NF-Y (i) recruits purified holo-TFIID in vitro and (ii) can associate multiple TAF(II)s, potentially accommodating different core promoter architectures

Centro Metropolitano de Artes Escénicas y Musicales de Bogotá

La ciudad de Bogotá, al contar con varios tipos de festivales de música y con el Festival Iberoamericano de Teatro el cual es uno de los mas grandes en el mundo, evidencia claramente la necesidad de un espacio para grandes aglomeraciones, el cual tenga la capacidad de albergar distintos tipos de escenarios y practicas artísticas. Pretende transformar al parque en un epicentro multidisciplinar. El proyecto está ubicado estratégicamente en el centro metropolitano mas grande de la ciudad: el parque Simón Bolívar.The city of Bogota has many kinds of music festivals and one of the biggest theater shows in the world. this is why, the city is in the need for a bigger space where it can gather great amounts of people, and the possibility to manage different kinds of scenography and stages as well. The theater is located in a strategically center, the biggest metropolitan center in the city, Simon Bolivar metropolitan park.Arquitecto (a)Pregrad