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Mostrando ítems 2067-2086 de 2524
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Seasonal precipitation in south-central Chile: Trends in extreme events since 1900
(UNAM. CENTRO CIENCIAS ATMOSFERA, 2021-09)We study a regional precipitation time series built upon seven meteorological records from south-central Chile (SCC; 37 degrees-42 degrees S), which altogether cover the period 1900-2019. As a first objective, we investigated ... -
Seasonality Analysis of Sentinel-1 and ALOS-2/PALSAR-2 Backscattered Power over Salar de Aguas Calientes Sur, Chile
(MDPI Multidisciplinary Digital Publishing Institute, 2020-03)Seasonal changes control the development of salt crust over the Salar de Aguas Calientes Sur located in Andes Highlands, Chile. Precipitations throughout the Altiplanic winter (December to March) and austral winter (June ... -
Secondary Circulating Prostate Cells Predict Biochemical Failure in Prostate Cancer Patients after Radical Prostatectomy and without Evidence of Disease
(CIENCIAS, 2013)Introduction. Although 90% of prostate cancer is considered to be localized, 20%-30% of patients will experience biochemical failure (BF), defined as serum PSA >0.2 ng/mL, after radical prostatectomy (RP). The presence of ... -
Secuenciación del gen CFTR en un grupo de pacientes chilenos con fibrosis quística
(Facultad de Ciencias, 2014)Introducción: La fibrosis quística (FQ) es un trastorno autosómico recesivo causado por mutaciones en el gen CFTR, en el cual se han identificado más de 1.900 mutaciones diferentes. En Chile, el panel diagnóstico con las ... -
Secuencias de Pregunta, Respuesta y Seguimiento en Situaciones de Juego y Cuentos en el Nivel Inicial
(Escuela de Fonoaudiología, Universidad Mayor, Chile, 2021-05)El lenguaje que utilizan las maestras tiene importantes asociaciones con el lenguaje de los niños/as a su cuidado. Un aspecto importante es el tipo de preguntas que realizan las maestras y la forma en que dan seguimiento ... -
Security evaluation in wireless networks
(Springer, 2018)In the last years, the breathtaking development of technology has had as principal focus the growth of mobile and wireless devices. The last is more predominant in the market due to the apogee of the wireless networks. ... -
La seducción en El nido de la serpiente. Memorias del hijo del heladero de Pedro Juan Gutiérrez
(Estudios Interdisciplinarios, 2018)El nido de la serpiente. Memorias del hijo del heladero del escritor cubano Pedro Juan Gutiérrez desata la conjura del mal y del principio de incertidumbre, logrando un efec to de ilusión y de reversibilidad que atenta ... -
Segmento II del Hígado ¿Segmento Lateral Izquierdo o Segmento Posterior Lateral Izquierdo?
(CIENCIAS, 2015)La división del hígado en segmentos se basa en que, a partir del hilio, cada una de las ramas de la vena porta está acompañada por una arteria y un conducto biliar. El conocimiento preciso de las estructuras vasculares ... -
Selección de color dentario: comparación de los métodos visual y espectrofotométrico
(Facultad de Ciencias, 2016)Introducción: En odontología la selección de color se realiza mediante métodos visuales o instrumentales: el primero, ampliamente utilizado, es subjetivo e influenciado por diversos factores, en tanto el instrumental con ... -
Self-Compatibility Not Associated with Morphological or Genetic Diversity Reduction in Oil-Rewarding Calceolaria Species
(MDPI Multidisciplinary Digital Publishing Institute, 2020-10)One of the most common evolutionary transitions in angiosperms is the reproductive change from outcrossing to selfing, commonly associated with changes in floral biology and genetic diversity. Here, we aim to test whether ... -
Self-contradiction for type-2 fuzzy sets whose membership degrees are normal and convex functions
(ELSEVIER SCIENCE BV, 2018)In order to detect contradictory information or to avoid conflicting outputs in processes of inference, the contradiction has been studied in the framework of fuzzy logic. It was found that a set A is N -self-contradictory ... -
Semi-exact solutions of sextic potential plus a centrifugal term
(SPRINGER, 2020-11)We revisit the one-dimensional quantum system of a sextic potential added with a centrifugal term, V(x)=ax(-2)+bx(2)+cx(4)+dx(6), where the parameters a,b,c and d are arbitrary. We find that its solutions can be expressed ... -
Senescent Schwann cells induced by aging and chronic denervation impair axonal regeneration following peripheral nerve injury
(Wiley-Blackwell, 2023-12-07)Following peripheral nerve injury, successful axonal growth and functional recovery require Schwann cell (SC) reprogramming into a reparative phenotype, a process dependent upon c-Jun transcription factor activation. ... -
Senior Citizens’ Training Experience in Secure Electronic Payment Methods
(Proceedings of Seventh International Congress on Information and Communication Technology, 2022-07-27)Virtual training is a mechanism that enables contemporary society to be literate, allowing up-to-date information on the technological environment, improving cognitive abilities as well as soft skills required in the ... -
Sensing Electrochemical Signals Using a Nitrogen-Vacancy Center in Diamond
(MDPI, 2021-02)Chemical sensors with high sensitivity that can be used under extreme conditions and can be miniaturized are of high interest in science and industry. The nitrogen-vacancy (NV) center in diamond is an ideal candidate as a ... -
Sensitivity analysis of geometrical parameters to study haemodynamics and thrombus formation in the left atrial appendage
(WILEY, 2018)The left atrial appendage (LAA) is a complex and heterogeneous protruding structure of the left atrium (LA). In atrial fibrillation patients, it is the location where 90% of the thrombi are formed. However, the role of the ... -
Sensitivity of Water Price Elasticity Estimates to Different Data Aggregation Levels
(SPRINGER, 2021-05-13)The empirical literature on residential water demand employs various data aggregation methods, which depend on whether the aggregation is over consumption, sociodemographic variables, or both. In this study, we distinguish ...