Non-targeted strategies based on high-performance liquid chromatography with ultraviolet detection (HPLC-UV) and fluorescence (HPLC-FLD) fingerprints were evaluated to accomplish the classification authentication of instant coffee (40 samples), decaf (26 chicory (22 samples, including both ground instant), as well detect quantify frauds adulteration by multivariate chemometric methods. HPLC-UV ...

We present two new methods for purifying dinosterol (4a,23,24-trimethyl-5a-cholest-22E-en-3b-ol) from sediments for the purpose of hydrogen isotope analysis via gas chromatography–isotope ratio mass spectrometry (GC–IRMS). The first method uses reversed phase-high performance liquid chromatography (RP-HPLC) to purify dinosterol from structurally similar 4a-methyl sterols that co-elute on GC ana...

As part of its 100th-anniversary celebration, the Pan American Health Organization has named 12 persons as "Public Health Heroes of the Americas" in recognition of their noteworthy contributions to public health in the Region of the Americas. Over the course of this year, the Revista Panamericana de Salud Pública/Pan American Journal of Public Health will be carrying pieces written by or about ...

ACKNOWLEDGEMENT I take this opportunity to express my sincere gratitude to Dr. Asha Kishore, Professor of Neurology and Movement Disorders expert, SCTIMST, my guide for the study, for her expert guidance, constant review, kind help and keen interest at each and every step during the completion of the study. Centre for Health Science Studies for helping me with the statistical analysis of this s...

Sr. Editor. En la relación médico-paciente, la comunicación de malas noticias se convierte en una experiencia difícil para el profesional de la salud, debido que la expresión verbal de una mala noticia trascenderá otras esferas en la percepción del paciente, y que afectará negativamente sus expectativas y proyectos de vida personal, familiar y social. Vinculado a ello, Robert Buckman, médico on...

A study of the phase and rheological behavior of sucrose hexadecanoate (C16SE)/cosurfactant/water systems in the presence of solubilized oil, using complementary techniques such as dynamic light scattering and small angle X-ray scattering, is presented. Viscoelastic wormlike micellar solutions are found when a nonionic lipophilic cosurfactant is added to C16SE aqueous systems. Contrary to previ...

Se evaluó el contenido de catequina en cortezas las especies forestales Pinus patula, oocarpa y Eucaliptus grandis, cultivadas Departamento del Cauca-Colombia. Los extractos etanólicos se obtuvieron evaluando mejores condiciones tamaño partícula, tiempo agitación, relación disolvente-corteza, temperatura agitación. El determinó usando cromatografía líquida alta resolución (HPLC) con detector ul...

If we are to believe the Daily Mail, US scientists have cloned the first human embryo — and destroyed it. This revelation came in the form of a Daily Mail ‘exclusive’, which appeared on 17 June. The headline announced the “first cloned human embryo,” and was accompanied by a front-page picture of a “12-day-old male human embryo consisting of 400 cells” that was reported to have been incinerated...