V. Fonseca

Peroxidase-like Activity of G-Quadruplex/Hemin Complexes for Colorimetric Nucleic Acid Analysis: Loop and Flanking Sequences Affect Signal Intensity

Ryan P. Connelly, V. Fonseca, Yulia V. Gerasimova

Background/Objectives: Some G-quadruplex (G4)-forming nucleic acid sequences bind a hemin cofactor to enhance its peroxidase-like activity. This has been implemented in a variety of bioanalytical assays benefiting from analyte-dependent peroxidation of a chromogenic organic substrate (e.g., ABTS) to produce a color change. …

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Contribuições da neurolinguística discursiva para a educação básica inclusiva em Campinas

V. Fonseca

GRAVIDEZ NA ADOLESCÊNCIA: ASPECTOS BIOPSICOSSOCIAIS

Tiago Holanda Montezuma, J. Miranda, V. Fonseca, MARÍLIA NEUZA GOMES ROSA CORDEIRO et autres

Development of HPD Clusters for MAGIC-II

R. Orito, E. Bernardini, D. Bose, A. Dettlaff et autres

MAGIC-II is the second imaging atmospheric Cherenkov telescope of the MAGIC observatory, which has recently been inaugurated on Canary island of La Palma. We are currently developing a new camera based on clusters of hybrid photon detectors (HPD) for the upgrade of …

de, es, ch (code pays fourni par la source)

Optical Astronomy with Cherenkov Telescopes

E. Oñ-Wilhelmi, J. Cortina, Ocker C. de Jager, V. Fonseca

Afrique du Sud, es (code pays fourni par la source)

Detectivity of Unidentified EGRET Sources as Gamma-Ray Pulsars with the Magic Telescope

R. Orduña, C. Baixeras, Alberto Carramiñana, V. Fonseca

es, mx, br (code pays fourni par la source)

TeV gamma-ray observations of SS-433 and a survey of the surrounding field with the HEGRA IACT-System

F. Aharonian, A. G. Akhperjanian, M. Beilicke, K. Bernlöhr et autres

We present results of a search for TeV γ -ray emission from the microquasar SS-433 and the surrounding region covering a ~ field of view. Analysis of data taken with the HEGRA stereoscopic system of imaging atmospheric Čerenkov imaging telescopes reveals no …

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High-frequency modeling of GaN∕SiC blue light-emitting diodes

P. Antoranz, Jose Miguel Miranda, José Luis Sebastián, Montaña Cámara et autres

We report on this work a model to accurately predict the electrical behavior of double-heterostructure GaN∕SiC blue light-emitting diodes up to microwave frequencies. A procedure to extract the series resistance (Rs) from the reflection coefficient is suggested. This procedure offers the advantage …

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Detectivity of Unidentified Egret Sources as Gamma-Ray Pulsars with the Magic Telescope

R. Orduña, C. Baixeras, Alberto Carramiñana, V. Fonseca

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The unidentified TeV source (TeV J2032+4130) and surrounding field: Final HEGRA IACT-System results

F. Aharonian, A. G. Akhperjanian, M. Beilicke, K. Bernlöhr et autres

The unidentified TeV source in Cygnus is now confirmed by follow-up observations from 2002 with the HEGRA stereoscopic system of Cherenkov Telescopes. Using all data (1999 to 2002) we confirm this new source as steady in flux over the four years of …

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Determination of the night sky background around the Crab pulsar using its optical pulsation

Emma de Oña Wilhelmi, J. Cortina, O. C. de Jager, V. Fonseca

Afrique du Sud, es (code pays fourni par la source)

Observations of 54 Active Galactic Nuclei with the HEGRA system of Cherenkov telescopes

F. Aharonian, A. G. Akhperjanian, M. Beilicke, K. Bernlöhr et autres

A sample of 54 selected Active Galactic Nuclei (AGN) has been observed with the HEGRA stereoscopic system of Cherenkov Telescopes between 1996 and 2002 in the TeV energy regime. The observations were motivated by the positive results obtained for Mkn 421 and …

de, am, es, gb, ru, fr (code pays fourni par la source)