Results 31 to 40 of about 11,633 (157)
Metodología para la determinación de usos del suelo mediante procesamiento de imágenes satelitales
Iteckne, 2010 Mediante los sistemas satelitales ubicados en órbita alrededor del planeta es posible realizar el seguimiento de gran cantidad de sucesos ocurridos en las diferentes latitudes del globo terráqueo.
John Jairo Sanabria Sarmiento +1 more
doaj +1 more source
Curating landscapes to encourage care for biodiversity through arts and citizen science
People and Nature, EarlyView.Abstract This study investigates how combining Citizen Science and Art workshops within curated wildflower meadows can generate repeated, positive experiences with nature, and foster a sense of care for it. The project aimed to increase awareness, encourage responsibility, and develop competencies related to urban nature.
Elisa Olivares Esquivel +2 more
wiley +1 more source
Pest Management Science, EarlyView.Phenoxazinones caused differential types of phytotoxic effects in C. campestris early development. APO is a coherent lead inhibiting C. campestris germination and early seedling growth. Abstract BACKGROUND 2‐Amino‐3H‐phenoxazin‐3‐one (synonym: questiomycin A; abbreviated as APO or Phx‐3) is a naturally occurring phenoxazinone‐type allelochemical with ...
Cristina Díaz‐Franco +5 more
wiley +1 more source
PROTOCOLO DE PROYECTOS DE INVESTIGACIÓN
Hallazgos, 2015 Es muy común que los protocolos de proyectos se dediquen a señalar los elementos que componen la formulación y, en algunos casos, la secuencia de presentación y aprobación del proyecto en una organización. En este sentido, el protocolo que se presenta a
William Mantilla Cárdenas
doaj +1 more source
Exact Robust Filtering and Differentiation Based on Sliding Modes and Homogeneity
International Journal of Robust and Nonlinear Control, EarlyView.ABSTRACT This article addresses the problem of online estimation of the derivatives of a signal corrupted by measurement noise. The measured signal is modeled as the sum of a smooth nominal component and a uniformly bounded noise term. A key objective is to attenuate the effect of high‐frequency noise.
Jaime A. Moreno, Arie Levant
wiley +1 more source
High‐Order Sliding‐Mode control for MIMO Systems
International Journal of Robust and Nonlinear Control, EarlyView.ABSTRACT This paper extends Lyapunov‐based homogeneous high‐order sliding‐mode control to a class of uncertain non‐square multi‐input multi‐output (MIMO) nonlinear systems with a well‐defined vector relative degree. The considered systems admit a normal‐form representation with an uncertain but full‐row‐rank input‐gain matrix.
Jaime A. Moreno, Angel Mercado‐Uribe
wiley +1 more source
Ultrasound in Obstetrics &Gynecology, EarlyView.ABSTRACT Objective To evaluate whether fetuses exposed to threatened preterm labor (PTL) without intra‐amniotic infection or inflammation (IAI), who were born ≥ 34 weeks' gestation, show signs of cardiac remodeling and dysfunction at admission and 4 weeks after the episode of threatened PTL.
C. Murillo +11 more
wiley +1 more source
BJOG: An International Journal of Obstetrics &Gynaecology, EarlyView.ABSTRACT Objectives To quantify the discrepancy between anatomical and motor levels in foetuses with open spinal dysraphism and identify prenatal factors associated with this difference. We also examined associations between anatomical level and ultrasound findings. Design Retrospective observational study.
Silvia Arévalo +8 more
wiley +1 more source
Acta Médica Peruana, 2013 Introducción: El poco conocimiento en investigación de estudiantes de Medicina y el hecho de realizar sus tesis de pregrado en corto tiempo, pone en duda la calidad de las mismas.
Edson Mandujano-Romero +1 more
doaj
Estado actual del conocimiento de los mamíferos fósiles de Chile
Estudios Geologicos, 2010 Se presenta una revisión de los mamíferos fósiles de Chile, de ambientes terrestres y acuáticos, conocidos hasta el año 2008; no se consideran aquellos registros de dudosa asignación o que no pudieron ser localizados.
Jhoann Canto +2 more
doaj +1 more source