Search results for "Raj"

Evaluation of split-window and dual-angle correction methods for land surface temperature retrieval from Envisat/Advanced Along Track Scanning Radiom…

2006

[1] Land surface temperature (LST) can be derived from thermal infrared remote sensing data provided that atmospheric and emissivity effects are corrected for. In this paper, two correction methods were evaluated using a database of ground LST measurements and concurrent Envisat/Advanced Along Track Scanning Radiometer (AATSR) data. They were the split-window (SW) method, which uses two channels at 11 and 12 μm, and the dual-angle (DA) method, using one single channel (11 μm) at two observation angles (close to nadir and around 55° forward). The ground LST measurements were performed in a large, flat, and thermally homogeneous area of rice fields during the summers of 2002–2005, when the cr…

Evolution Within a Bizarre Phylum: Homologies of the First Echinoderms

1998

SYNOPSIS. The Extraxial/Axial Theory (EAT) of echinoderm skeletal homologies describes two major body wall types: axial and extraxial. The latter is subdivided into perforate and imperforate regions. Each of the regions has a distinctly different source in early larval development. Axial skeleton originates in the rudiment, and develops in association with the pentaradially arranged hydrocoel according to specific ontogenetic principles. Perforate and imperforate extraxial regions are associated with the left and right somatocoels respectively, are not governed by ontogenetic principles of plate addition, and are products of the non-rudiment part of the larval body. The morphology of even t…

Fermionic superfluidity in optical lattices

2008

Visual category representations in the infant brain

2021

SUMMARYVisual categorization is a human core cognitive capacity1,2that depends on the development of visual category representations in the infant brain3–7. However, the exact nature of infant visual category representations and their relationship to the corresponding adult form remains unknown8. Our results clarify the nature of visual category representations from electroencephalography (EEG) data in 6- to 8-month-old infants and their developmental trajectory towards adult maturity in the key characteristics of temporal dynamics2,9, representational format10–12, and spectral properties13,14. Temporal dynamics change from slowly emerging, developing representations in infants to quickly e…

"Tässä ryhmässä olen aika hyvä" : ekologinen näkökulma kielenoppijaidentiteetteihin peruskoulun viidennen ja kuudennen luokan englannin opetuksessa

2012

A test of the effort equalization hypothesis in children with cerebral palsy who have an asymmetric gait.

2022

Healthy people can walk nearly effortlessly thanks to their instinctively adaptive gait patterns that tend to minimize metabolic energy consumption. However, the economy of gait is severely impaired in many neurological disorders such as stroke or cerebral palsy (CP). Moreover, self-selected asymmetry of impaired gait does not seem to unequivocally coincide with the minimal energy cost, suggesting the presence of other adaptive origins. Here, we used hemiparetic CP gait as a model to test the hypothesis that pathological asymmetric gait patterns are chosen to equalize the relative muscle efforts between the affected and unaffected limbs. We determined the relative muscle efforts for the ank…

A Trajectory-Driven 3D Channel Model for Human Activity Recognition

2021

This paper concerns the design, analysis, and simulation of a 3D non-stationary channel model fed with inertial measurement unit (IMU) data. The work in this paper provides a framework for simulating the micro-Doppler signatures of indoor channels for human activity recognition by using radiofrequency-based sensing technologies. The major human body segments, such as wrists, ankles, torso, and head, are modelled as a cluster of moving point scatterers. We provide expressions for the time variant (TV) speed and TV angles of motion based on 3D trajectories of the moving person. Moreover, we present mathematical expressions for the TV Doppler shifts and TV path gains associated with each movin…

Argumentación, arbitraje y arbitrariedad: las contradicciones del Tribunal Constitucional en el recurso directo de nulidad contra laudos.

2013

Este artículo analiza una sentencia del Tribunal Constitucional de Bolivia desde el punto de vista de la argumentación de las decisiones judiciales. En ella, el Tribunal sostuvo que las pretensiones de nulidad contractual no eran materia arbitrable. A este artículo no le concierne el fondo de esta afirmación, sino las implicancias de la misma respecto a los anteriores precedentes del propio Tribunal Constitucional. En este sentido, el artículo concluye que, para dictar la sentencia en análisis, el Tribunal ha violado sus propios precedentes respecto al recurso directo de nulidad (que es el recurso específico que produjo la sentencia en comento), respecto a la licitud de someter pretensiones…

Del salón familiar a las salas de estreno : cine doméstico español y reciclaje audiovisual

2018

International audience; El presente artículo ofrece una aproximación a los reciclajes contemporáneos del cine doméstico español y analiza cómo, en el proceso de reapropiación, las imágenes ajenas pierden su naturaleza original y se resemantizan a través de la exhibición pública, fuera del círculo familiar para el que fueron concebidas originalmente. El estudio se centra en cuatro largometrajes documentales –Un instante en la vida ajena (José Luis López-Linares, 2003), Barcelona, abans que el temps ho esborri (Mireia Ros, 2010), El Perro Negro: Stories from the Spanish Civil War (Péter Forgács, 2005), El gran vuelo (Carolina Astudillo, 2014)– y en un original y multifacético proyecto transme…

ELSA 2014 Cohort: Risk Factors Associated With Heavy Episodic Drinking Trajectories in Argentinean College Students

2020

Heavy episodic drinking (HED) is highly prevalent in college students. In Argentina, there is a notable lack of longitudinal studies examining drinking trajectories. The present study identified HED trajectories in Argentinean college students during the first 3 years of college (seven waves) and examined the association between risk factors for alcohol use and HED trajectories. The sample was composed of 1,240 college students [63.1% women, aged 18–25 years (M = 19.1 ± 1.7)] who completed at least three waves (the first data collection and ≥2 follow-ups). For 3 years, participants completed seven surveys that measured HED frequency, age of drinking onset, drunkenness occurrence, trait impu…