Search results for "prime"
showing 10 items of 853 documents
50 aniversario de la Escuela Diocesana de Asistentes Sociales de Valencia
2012
El artículo resume los recuerdos y vivencias de este grupo de profesionales en el 50 aniversario del inicio de la Escuela, que se celebró en el Col-legi Oficial de Diplomats en Treball Social i Assistents Socials de Valencia. The article sums up the memories and experiences of this group of professionals at the 50th Anniversary of the school's founding, which was held at the Col-legi Oficial de Diplomats en Treball Social i Assistents Socials de Valencia.
Insecticidal Activity of Strains of Bacillus thuringiensis on Larvae and Adults of Bactrocera oleae Gmelin (Dipt. Tephritidae)
1999
The olive fly, Bactrocera oleae, is the key pest on olives in the Mediterranean area. The pest can destroy, in some cases, up to 70% of the olive production. Its control relies mainly on chemical treatments, sometimes applied by aircraft over vast areas, with their subsequent ecological and toxicological side effects. Bacillus thuringiensis is a spore-forming soil bacterium which produces a protein crystal toxic to some insects, including the orders of Lepidoptera, Diptera, and Coleoptera and other invertebrates. The aim of this study was to search for isolates toxic to B. oleae. Several hundred B. thuringiensis isolates were obtained from olive groves and olive presses in different areas o…
Identification ofCandida albicansclinical isolates by PCR amplification of anEFB1gene fragment containing an intron-interrupted open reading frame
2000
The use of a single pair of primers, deduced from the intron and exon nucleotide sequences of the Candida albicans EFB1 gene, in polymerase chain reaction (PCR) assays performed with whole cells of both laboratory strains and clinical isolates of Candida species, resulted in the species-specific amplification of a 785 bp DNA fragment in C. albicans strains. Clinical C. albicans isolates were tested, and 85 out of 86 generated the expected PCR-amplified product; other Candida species, both laboratory strains and clinical isolates, as well as laboratory strains belonging to other fungal genera, including medically relevant taxa, failed to amplify any DNA fragment. In addition, unusual C. albi…
Fractional-Fourier-transform calculation through the fast-Fourier-transform algorithm.
1996
A method for the calculation of the fractional Fourier transform (FRT) by means of the fast Fourier transform (FFT) algorithm is presented. The process involves mainly two FFT’s in cascade; thus the process has the same complexity as this algorithm. The method is valid for fractional orders varying from −1 to 1. Scaling factors for the FRT and Fresnel diffraction when calculated through the FFT are discussed.
Contribution of Woldemar von Knieriem to the Training and Experimental Farm «Peterhof» of Riga Polytechnicum and Riga Polytechnic Institute
2019
The article is dedicated to Professor Woldemar von Knieriem (1849– 1935), who has made a significant contribution to the development of agricultural science, headed the Department of Agriculture of Riga Polytechnic Institute (1903–1906), as well as Training and Experimental Farm «Peterhof» (1880– 1915) near Olaine city. It became a model farm not only in the Baltic region but also throughout the Russian Empire. Professor W. von Knieriem was the Director of RPI (1906–1916), an outstanding organizer and author of scientific works. He provided students with extensive theoretical and practical knowledge in agriculture, focusing on practical, scientifically approbated lessons about the managemen…
Valorizzazione dell filiera del grano duro in Sicilia attraverso indagini sulla caratterizzazione nutrizionale delle materie prime e dei prodotti der…
2011
Factores de riesgo asociados a la aparición de nuevas lesiones de caries en primeros molares permanentes
2018
Objetivo: Se realizó un estudio retrospectivo longitudinal el cual fue aprobado por el Comité de Ética de la Universidad de Valencia. El objetivo principal fue determinar los factores asociados a la aparición de nuevas lesiones de caries en el primer molar permanente (PMP) en niños de 12 años pertenecientes al Departamento 9 de Salud del Hospital General de Valencia (al que corresponden los Centros de Salud (CS) de Alacuás, Xirivella y Paiporta) seguidos, desde antes de la erupción del PMP y a lo largo de un periodo de 5 y 7 años, a través de la evaluación de su historia clínica. Material y métodos: se listaron en 2015 los niños nacidos en 2005 en los 3 municipios. De este modo se obtuvo un…
Educatio siglo XXI : revista de la Facultad de Educación
2021
¿Qué capacidades cartográficas posee el alumnado de primer ciclo de Educación Primaria si se tienen en cuenta sus experiencias personales? Para responder a esta cuestión se ha realizado un estudio de casos en 2º curso de Educación Primaria, donde se comparan las habilidades cartográficas de un grupo experimental en el que se ha intervenido con otro de control sin intervención. A la muestra se le aplica un pretest y un postest para que realice una representación pictórica de un itinerario y responda a cuatro cuestiones. Los resultados obtenidos se han categorizado según las clasificaciones propuestas por Lynch (1960), Boardman (1986) y Bale (1989) para el análisis del espacio geográfico. Las…
Use of Specific Chemical Reagents for Detection of Modified Nucleotides in RNA
2011
International audience; Naturally occurring cellular RNAs contain an impressive number of chemically distinct modified residues which appear posttranscriptionally, as a result of specific action of the corresponding RNA modification enzymes. Over 100 different chemical modifications have been identified and characterized up to now. Identification of the chemical nature and exact position of these modifications is typically based on 2D-TLC analysis of nucleotide digests, on HPLC coupled with mass spectrometry, or on the use of primer extension by reverse transcriptase. However, many modified nucleotides are silent in reverse transcription, since the presence of additional chemical groups fre…
Historia de la educación : revista interuniversitaria
1987
Se exponen determinados aspectos relacionados con la infancia durante la Guerra Civil española. En concreto, se analiza el comportamiento de los niños en una guerra fratricida, en la que la infancia está sometida a presiones ideológicas. Expone la dificultad de los niños para entender el hecho de que aquel que ayer era ciudadano de una misma nación, hoy ya no lo sea, o que aquel que fue amigo, hoy deje de serlo. Las colonias de la guerra adquieren características de colonias permanentes, y no sólo para un mes de verano, asumiendo, sobre todo, el carácter de refugio protector de las calamidades de la guerra. Castilla y León Universidad de Salamanca. Facultad de Educación; Paseo de Canalejas,…