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Mostrando ítems 4101-4110 de 9579
A planetary system and a highly eccentric brown dwarf around the giant stars HIP 67851 and HIP 97233
(EDP Sciences, 2015)
Context. So far more than 60 substellar companions have been discovered around giant stars. These systems present physical and orbital properties that contrast with those detected orbiting less evolved stars.
Aims. We ...
Microwave-assisted synthesis of localized surface plasmon resonance enhanced bismuth selenide (Bi2Se3) layers for non-enzymatic glucose sensing
(Elsevier, 2020)
Three-dimensional (3D) bismuth selenide (Bi2Se3) nanostructures were synthesized by microwave synthesis using
water as a solvent and hydrazine hydrate as a reducing agent and exfoliated into few layers of Bi2Se3. Bi2Se3- ...
Gene and protein expression of connexins 37 and 43 in cumulus-oocytes complexes throughout the canine oestrous cycle
(CSIRO, 2020)
The aim of this study was to evaluate the expression of connexin (Cx) 37 and Cx43 in canine cumulus-oocyte complexes (COCs) during the oestrous cycle. Cx localisation was analysed by immunohistochemistry and immunofluorescence, ...
Criptoporidium en Pacientes con VIH/SIDA en el Hospital Naval de Guayaquil 2009 - 2011.
(Universidad de Guayaquil. Facultad Piloto de Odontología. Escuela de Postgrado "Dr. José Apolo Pineda"., 2013)
Se realizó un estudio descriptivo retrospectivo de corte transversal, en la presente investigación realizamos un estudio de prevalencia de Cryptoporidium en 151 muestras de heces de todos los pacientes que acuden a la ...
“Diseño De Un Sistema Computarizado Inteligente Para La Detección Sísmica Y Alerta Temprana Con Comunicación Ethernet Y Tecnología Móvil”
(Universidad De Guayaquil.Facultad De Ciencias Matemáticas Y Físicas.Carrera De Ingeniería En Networking Y Telecomunicaciones, 2017-12-14)
Los movimientos sísmicos son fenómenos naturales que ocurren con frecuencia en el mundo y son imposible de predecir, por lo tanto, el estar preparados resulta vital, ya que es difícil que durante un sismo se puedan tomar ...
Cellular and molecular changes associated with somatic embryogenesis induction in Agave tequilana
(2012)
In spite of the importance of somatic embryogenesis for basic research in plant embryology as well as for crop improvement and plant propagation, it is still unclear which mechanisms and cell signals are involved in acquiring ...
Sistema embebido para medir distancias entre objetos.
(2014-12-09)
El propósito de esta tesina es presentar el desarrollo alcanzado con la integración de un micro controlador de 8 bits, basado en el conjunto de instrucciones MCS-51™, con un par de sensores de distancia.
El primer sensor ...
Intrahippocampal Inoculation of Aβ1–42 Peptide in Rat as a Model of Alzheimer’s Disease Identified MicroRNA-146a-5p as Blood Marker with Anti-Inflammatory Function in Astrocyte Cells
(MDPI, 2023)
Circulating microRNAs (miRNAs) have aroused a lot of interest as reliable blood diagnostic biomarkers of Alzheimer's disease (AD). Here, we investigated the panel of expressed blood miRNAs in response to aggregated ...
Análisis teórico para el Diseño de un fotodetector no lineal ultra-rápido en la banda c de telecomunicaciones ópticas hecho a partir de una guía de onda de múltiples pozos cuánticos
(2019-09-04)
Este trabajo pretende obtener por medio de estudios teóricos y computacionales las características optimas para una guía de onda (WaveGuide o WG) rectangular basada en semiconductores que conforman múltiples pozos cuánticos ...
Reduced complexity MLSD receivers for nonlinear optical channels
(Institute of Electrical and Electronics Engineers, 2014-02)
We present a novel maximum likelihood sequence detection (MLSD) receiver structure for nonlinear channels. This scheme is derived by treating the NLC as a multiple input/multiple output system. Then, orthogonal signal ...