Artículos de revista: Envíos recientes
Mostrando ítems 821-840 de 887
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Description of the female of lyssomanes miniaceus, with a new distribution record for L. belgranoi (araneae: salticidae)
(Instituto de Ciencias Naturales, 2017-06-11)Numerous new spider species are waiting to be described, and in many cases knowledge is incomplete because species are known from a single sex. In this contribution the female of the jumping spider Lyssomanes miniaceus is ... -
Electrochemical oxidation of the antiretroviral drug nelfinavir on modified screen-printed electrodes
(Wiley VCH Verlag, 2016)This paper describes the voltammetric study of the electrochemical oxidation of the antiretroviral drug Nelfinavir using a screen-printed sensor modified with carbon nanotubes. The performance of the sensor in the determination ... -
Mebendazole spectrophotometric determination. Theoretical and experimental study of the interaction with sodium hydroxide
(Asian Journal of Science and Technology, 2016-11-30)USP, EP, and Argentinian Pharmacopoeia proposed HPLC-UV for quantitative quality control of mebendazole (MBZ) tablets. In this work, a spectrophotometric method is proposed. A mebendazole solution was prepared by dissolving ... -
Caracterización de asignaturas del ciclo básico de la licenciatura en biología de la FACENA (UNNE), en función del desempeño de sus estudiantes
(Escuela de Perfeccionamiento en Investigación Operativa, 2015-11)Este trabajo tiene por objetivo caracterizar a las asignaturas del Ciclo Básico de la Licenciatura en Ciencias Biológicas de la Facultad de Ciencias Exactas y Naturales y Agrimensura de la Universidad Nacional del Nordeste, ... -
Nutritional parameters of “mete cocido” with milk prepared from two species of ilex and their comercial mixture for school age population
(Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias, 2018-05-29)The infusion at 1.5% of yerba mate (Ilex paraguariensis A.St.-Hil.) (Ip) corresponds to "cooked mate" (MC), whose combination with milk (50:50 v/v) (M) and refined sugar (S) is the "mate cocido with milk", ... -
Comunidades de aves de bosques y pastizales en los afloramientos rocosos aislados del Paraje Tres Cerros, Corrientes, Argentina
(Universidad de Costa Rica, 2016-05-18)Isolated rocky outcrops can act as patch habitats that host great biodiversity through the diversity of microhabitats, presence of restricted taxa and the high turnover of species in the patch matrix. The isolated rocky ... -
Theoretical characterization of molecular complexes formed between triplet vinyl nitrene and lewis acids
(Springer, 2015)In the current work, the complexes formed between triplet vinyl nitrene (3CH2CHN) and some Lewis acids YA (LiH, LiF, BeH2, BeF2, BH3, BF3, ClH, ClF, HCl, HF) have been investigated through calculations of the electronic ... -
Brown rice authenticity evaluation by spark discharge-laser-induced breakdown spectroscopy
(Elsevier, 2019-06-08)Rice is the most consumed food worldwide, therefore its designation of origin (PDO) is very useful. Laserinduced breakdown spectroscopy (LIBS) is an interesting analytical technique for PDO certification, since it provides ... -
Non essential element concentrations in brown grain rice : assessment by advanced data mining techniques
(Springer, 2017-04-10)The concentrations of 17 non-essential elements (Al, As, Ba, Be, Cd, Ce, Cr, Hg, La, Li, Pb, Sb, Sn, Sr, Th, Ti, and Tl) were determined in brown grain rice samples of two varieties: Fortuna and Largo Fino. The samples ... -
Tracing the geographical origin of Argentinean lemon juices based on trace element profiles using advanced chemometric techniques
(Elsevier, 2016-07-02)This study examines the application of chemometric techniques associated with trace element concentrations for origin evaluation of lemon juice samples. Seventy-four lemon juice samples from three different provinces of ... -
Multivariate classification of honeys from Corrientes (Argentina) according to geographical origin based on physicochemical properties
(Elsevier, 2016-05-14)Honey is the natural sweet substance produced by Apis mellifera bees and is studied in different countries and zones because of the interest of consumers in origin and quality of food. The Corrientes Province (Argentina) ... -
Classification of organic olives based on chemometric analysis of elemental data
(Elsevier, 2018)The aim of this study was to discriminate organic from conventional olive samples based on the levels of macro and trace elements, combined with chemometric techniques. Ten elements (Na, K, Ca, Fe, Mg, Cu, Zn, Se, S and P) ... -
Determining the geographical origin of Sechium edule fruits by multielement analysis and advanced chemometric techniques
(Elsevier, 2016)This paper describes the determination and evaluation of the major and trace element composition (Al, As, Ba, Ca, Cd, Co, Cu, Fe, K, Mg, Mn, Na, Pb, Sr and Zn) of Sechium edule (Jacq) Swartz fruits collected from four ... -
Trace element concentrations in commercial gluten free amaranth bars
(Springer, 2015)Gluten-free foods are specially designed to be consumed by people who suffer from celiac disease or some type of gluten intolerance. Few studies are currently available about trace element contents in gluten-free ... -
In situ late triassic fossil conifer woods from the fluvial channel deposits of the Soturno River (Caturrita formation, Rio Grande do Sul, Brazil)
(Czech Geological Society, 2016)Three new fossil gymnosperm woods are described from a new outcrop exposed on the margins of the Soturno River, State of Rio Grande do Sul, eastward located in relation to other well-known petrified forests from São Pedro ... -
Maderas neógenas de Cerro Pampa, Catamarca, Argentina
(Museo Argentino de Ciencias Naturales Bernardino Rivadavia, 2018)Por primera vez se da a conocer el registro de maderas angiospérmicas de Fabaceae de la localidad de Cerro Pampa (Catamarca). Estratigráficamente proceden de los sedimentos de la Formación Chiquimil que pertenece al Grupo ... -
Analytical method for the determination of surfactants with fluorescent activity, present in liquid effluents from textile industries, by HPLC fluorescence
(Science Domain International, 2017)In textile industries effluents we can be found surfactants of various characteristics, alkalis, and sulfides partially or totally hydrolyzed dyes, among other things, which are used as dyeing material. This study aims to ... -
Multielemental composition and nutritional value of "dumosa" (Ilex dumosa), "yerba mate" (I. paraguariensis) and their commercial mixture in different forms of use
(Universidad Nacional de Cuyo. Centro Coordinador de Ediciones Académicas, 2016)The multielement composition and nutritional value of "dumosa" (Ilex dumosa) (ID), "yerba mate" (I. paraguariensis) (IP) and their commercial 70:30 mixture (ID:IP, w/w) in crude drug, brewed mate and tea-bag-like infusion ... -
Multiway calibration strategy with chromatographic data exploiting the second order advantage for quantitation of three antidiabetic and three antihypertensive drugs in serum samples
(Elsevier, 2018)This paper proposes a multiway calibration strategy implementing the modeling with MCR-ALS and U-PLS/RBL of second-order chromatographic data for quantitation of six analytes: gliclazide, glibenclamide, glimepiride, atenolol, ... -
Chemometric optimization and validation of a novel dispersive liquid liquid microextraction HPLC method for gliclazide, glibenclamide and glimepiride quantitation in serum samples
(Elsevier, 2016)A dispersive liquid–liquid micro extraction (DLLME) liquid chromatographic method that allows extraction and separation of gliclazide, glibenclamide and glimepiride from serum was developed and optimized with the use of ...
