Results 121 to 130 of about 116,651 (290)
Análisis de series temporales pluviométricas en la Cuenca del Duero [PDF]
Time series of monthly rainfall values, given in mm/m2, for eight stations in the Spanish Duero river basin are analysed. They have been recorded during a long period of time, ranging from 83 to 140 years.
Herrero, Miguel A., Álvarez, Rodrigo
core +1 more source
Peptide Sequencing With Single Acid Resolution Using a Sub‐Nanometer Diameter Pore
Advanced Functional Materials, EarlyView.To sequence a single molecule of Aβ1−42–sodium dodecyl sulfate (SDS), the aggregate is forced through a sub‐nanopore 0.4 nm in diameter spanning a 4.0 nm thick membrane. The figure is a visual molecular dynamics (VMD) snapshot depicting the translocation of Aβ1−42–SDS through the pore; only the peptide, the SDS, the Na+ (yellow/green) and Cl− (cyan ...
Apurba Paul +8 more
wiley +1 more source
Modelos para series temporales heterocedásticas
, 1994 Muchas series temporales financieras observadas con frecuencias elevadas y algunas series macroeconómicas son condicionalmente heterocedásticas. La modelización de la varianza condicional de dichas series es importante desde un punto de vista teórico para cualquier modelo que tenga en cuenta la incertidumbre.
openaire +2 more sources
Advanced Functional Materials, EarlyView.Guided by the golden ratio, a class of aperiodic architected metamaterials is introduced to address the intrinsic trade‐off between strength and toughness. By unifying local geometric heterogeneity with global order, the golden‐ratio‐guided aperiodic architecture promotes spatial delocalization of damage tolerence regions, leading to more tortuous ...
Junjie Deng +9 more
wiley +1 more source
Epidemiologia e Serviços de SaúdeOBJETIVO: analisar as tendências das taxas de mortalidade infantil (TMI) e seus componentes em Guarulhos-SP, no período 1996-2011. MÉTODOS: regressão linear segmentada, para estimar as variações percentuais anuais (VPA).
Daniel Hideki Bando +6 more
doaj +1 more source
¿Quo Vadis? Reclutamiento y Contratacion de Trabajadores Migrantes y su Acceso a la Seguridad Social: dinamicas de los sistemas de trabajo temporal migratorio en Norte y Centroamerica [PDF]
, 2013 Different regions and countries of the world face a serious need to design and make use of necessary policies and resources to better manage worker migration, thus ensuring the welfare and human rights of these people who, in the end, are of benefit to ...
Alejandra Costanza, Gisele Lisa Bonnici
core
Advanced Functional Materials, EarlyView.Thermoelectric temperature sensors are developed that directly measure heat changes during optical‐based neural stimulation with millisecond precision. The sensors reveal the temperature windows for safe reversible neural modulation: 1.4–4.5 °C enables reversible neural inhibition, while temperatures above 6.1 °C cause permanent thermal damage.
Junhee Lee +9 more
wiley +1 more source
¿Es el coeficiente de Hurst un buen indicador de extinción de especies?
Pensamiento Matemático, 2011 La dimensión fractal de las fluctuaciones de los tamañospoblacionales se puede utilizar como un estimador del riesgo deextinción de una especie. El problema en la medición de esta dimensión fractal suele ser la longitud de la serie temporal, normalmente ...
Adela Salvador Alcaide +2 more
doaj
Test de independencia en series temporales
, 2013 Escuela Técnica Superior de Ingeniería ...
openaire +1 more source
Advanced Functional Materials, EarlyView.Two‐photon lithography (TPL) enables 3D magnetic nanostructures with unmatched freedom in geometry and material choice. Advances in voxel control, deposition, and functionalization open pathways to artificial spin ices, racetracks, microrobots, and a number of additional technological applications.
Joseph Askey +5 more
wiley +1 more source