Listar Universitas Scientiarum por fecha de publicación
Mostrando registros 21-40 de 560
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RÁPIDA Y PERTINENTE BÚSQUEDA POR INTERNET MEDIANTE OPERADORES BOOLEANOS
(Pontificia Universidad Javeriana, 2003-07-10)Internet is a great and modern tool to look for information about a particular problem, it is like to have simultaneous access to several libraries in the orld. In any search one usually gets a huge of information and some ... -
UNA NOTA SOBRE EL ESPACIO NULA
(Pontificia Universidad Javeriana, 2003-07-10)The nula number was introduced by L. Lareo and O. Acevedo in order to represent the information that sequences of nucleotides carry on. We want to identify some algebraic properties on the nula set, providing it with an ... -
ANÁLISIS Y PREDICCIÓN DE LA SERIE DE TIEMPO DEL PRECIO EXTERNO DEL CAFÉ COLOMBIANO UTILIZANDO REDES NEURONALES ARTIFICIALES
(Pontificia Universidad Javeriana, 2003-07-10)This article intends to design a non linear model for analysis and prediction of the time-series concerning the external price of Colombian coffee using rtificial Neural Networks. The main purpose is to compare the realm ... -
EDITORIAL
(Pontificia Universidad Javeriana, 2003-07-10)En el acontecer histórico del progreso de los pueblos siempre es posible encontrar aportes a la matemática que fueron originados por la necesidad que tuvo el hombre de resolver algún problema particular. Por ejemplo el ... -
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LA REGLA DE CRAMER A PARTIR DEL PRODUCTO GENERALIZADO EN Rn
(Pontificia Universidad Javeriana, 2003-07-10)The vector product and the triple product are defined In the Euclidian Vector space Â3. Through the eometric interpretation of these products, we can define the product vector in the vector spaces, Â2, Â 4and Ân . With the ... -
OBTENCIÓN DE LA MATRIZ DE VARIANZAS Y COVARIANZAS A TRAVÉS DE LOS PRODUCTOS KRONECKER PARA MODELOS BALANCEADOS
(Pontificia Universidad Javeriana, 2003-07-10)We present a method for constructing variance and covariance matrices for balanced design using the Kronecker product. The method can be applied to fixed, random, or mixed models with any number of factors. The covariance ... -
Evaluación de la influencia de la agitación y de la concentración de formadehído en la detoxificación de la toxina tetánica
(Pontificia Universidad Javeriana, 2003-08-06)The study’s objective was to determinate the optime conditions to make detoxification the tetanus toxin. A total of 12 test (6 by each lot of the TT003 and TT007 toxin), where three different concentrations of formaldehyde ... -
GENERACIÓN DE POLINOMIOS DE SCHUBERT CON COCOA II: GRAFOS RC.
(Pontificia Universidad Javeriana, 2004-01-10)The Schubert polynomial associated to a permutation w is encoded by some rc graphs. We develop a computer program for computing Schubert polynomials using the moves on these graphs. -
INDICADORES DE CONTAMINACIÓN FECAL EN BIOSÓLIDOS APLICADOS EN AGRICULTURA
(Pontificia Universidad Javeriana, 2004-01-10)Wastewater treatment produce sludge as a by - product. Its characteristics depends of the wastewater origin and the treatment used for its depuration. Disposition of this material in agriculture, soil recuperation, ... -
SEGUIMIENTO Y CONTROL DE BIODETERIORO MICROBIOLÓGICO EN DOCUMENTOS DE INTERÉS HISTÓRICO EN EL ARCHIVO GENERAL DE LA NACIÓN
(Pontificia Universidad Javeriana, 2004-01-10)Starting from the support papers (manual, bond and newspapers ), photography with gelatin and silver emulsion and planes with support in textile fiber of Colombia’s General Archive, different isolation tests and identification ... -
EXPERIENCIAS PARA LA COMPRENSIÓN DE LA BIOLOGÍA CELULAR (ESTUDIO DE CASO)
(Pontificia Universidad Javeriana, 2004-01-10)In this paper, several teaching experiences for understanding the structure and function of prokaryotic and eukaryotic cells are described. These experiences were carried out in courses for ecology students. Applying the ... -
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BIOLOGÍA DE LAS CÉLULAS DENDRÍTICAS HUMANAS
(Pontificia Universidad Javeriana, 2004-01-10)Antigen presenting cells are capable of capturing and processing antigenic peptides to be presented to T lymphocytes in the context of the Major Histocompatibility Complex. These peptides derived from self or no self ... -
NARINGENIN ENHANCED EFFICIENCY OF GUS ACTIVITY IN Passiflora mollissima (H.B.K.) Bailey
(Pontificia Universidad Javeriana, 2004-01-10) -
ESTRUCTURA TRIDIMENSIONAL DE LA CITOQUININA N-BENZIL 9 (2 TETRAHIDROPIRANYL) ADENINE UTILIZANDO EL MÉTODO DE RESONANCIA MAGNÉTICA NUCLEAR
(Pontificia Universidad Javeriana, 2004-01-10)In order to understand the biological function of the molecules that form living beings, it is necessary to know their three-dimensional structure, because this verifies that the function depends more on the space distribution ... -
PRIMEROS ANTECEDENTES SOBRE LO INFINITAMENTE PEQUEÑO
(Pontificia Universidad Javeriana, 2004-01-10)The mathematical concept of something infinitely small was achieved thanks to arduous work of humanity throughout many centuries. The first achievements related to the topic exist, fundamentally, because of the developments ... -
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CONTROL MICROBIOLÓGICO SOBRE Streptococcus Mutans Y SU ACCIÓN ACIDOGÉNICA
(Pontificia Universidad Javeriana, 2004-03-10)The actions made by health institutions in the prevention and control of dental caries have not been enough to achieve an important reduction of this disease. At the present moment, the microbiological control or replacement ... -
KMP-11: proteína 11 de Membrana de Kinetoplástidos
(Pontificia Universidad Javeriana, 2004-03-10)The kinetoplastid membrane protein KMP-11 is a 11kDa glycoprotein, is present on the surface of all stages of parasites life cycle, but is expressed at higher levels in vector insect stages. The characteristics presented ...