Aerodynamic Sensing for a Fixed Wing UAS Operating at High Angles of Attack

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/97104/1/AIAA2012-4416.pd

Sentrin/sumo Specific Proteases As Novel Tissue-selective Modulators Of Vitamin D Receptor-mediated Signaling

published_or_final_versio

A prospective randomized trial of content expertise versus process expertise in small group teaching

Article deposited according to agreement with BMC, December 6, 2010.YesFunding provided by the Open Access Authors Fund

Steady free-surface flow at the stern of a ship

New solutions for steady two-dimensional free-surface flow past a curved plate are considered here. They can be interpreted as approximations to the flow locally at the stern of a ship. Weakly nonlinear solutions are derived analytically and nonlinear solutions are computed by boundary integral equation methods. Analysis in the phase plane provides a way to determine the geometries of hulls that give rise to wave-free stern flows. These waveless flows are desirable as they reduce ship-drag

Cosmological Black Holes as Seeds of Voids in Galaxy Distribution

Deep surveys indicate a bubbly structure of cosmological large scale which should be the result of evolution of primordial density perturbations. Several models have been proposed to explain origin and dynamics of such features but, till now, no exhaustive and fully consistent theory has been found. We discuss a model where cosmological black holes, deriving from primordial perturbations, are the seeds for large-scale-structure voids. We give details of dynamics and accretion of the system voids-cosmological black holes from the epochs $(z\simeq10^{3})$ till now finding that void of $40h^{-1}Mpc$ of diameter and under-density of -0.9 will fits the observations without conflicting with the homogeneity and isotropy of cosmic microwave background radiation.Comment: to appear in Astronomy & Astrophysic

Ambiente de apoio a um laboratório virtual: uma percepção dos alunos sobre a sua importância no processo aprendizagem

Neste artigo é discutido o impacto relevante causado pelo uso de simulações na aprendizagem significativa. O acesso às simulações na área de Física representa um incremento considerável na compreensão conceitual dos alunos. Foi utilizado um Ambiente de Apoio a Laboratórios Virtuais e, a partir da análise dos registros no ambiente, das interações dos alunos, dos questionários aplicados, das entrevistas com o professor e do acompanhamento do rendimento dos alunos, foram levantados indícios capazes de sustentar o impacto positivo do uso do ambiente na aprendizagem. O trabalho encontrou suporte teórico nas teorias de aprendizagem construtivistas, especialmente no que tange à aprendizagem significativa de Jonassen, incluindo sua transposição para Ambientes de Aprendizagem Construtivista. Os indícios e as reflexões realizadas apontam que a integração do ambiente às práticas pedagógicas da disciplina beneficiaram significativamente a aprendizagem dos alunos.In this paper we discuss the use of simulations, causing a relevant impact to the meaningful learning. The access to the virtual simulations in the Physics field represents a considerable increase of conceptual understanding to the students. A Support Environment to Virtual Laboratories was used and from its records analysis, students` interactions, applied questionnaires, interviews with teachers, and we have found indications to support the positive impact of the environment in the learning process. The theoretical support of this paper is based on the constructive learning theories, especially the one referred in Jonassen’s Meaningful Learning, including his Constructive Learning Environments transpositions. The observations point that the integration of the virtual environment with the educational practices of the Physics significantly improves the learning process of the students.IV Workshop de Tecnología Informática Aplicada en Educación (WTIAE)Red de Universidades con Carreras en Informática (RedUNCI

Ambiente de apoio a um laboratório virtual: uma percepção dos alunos sobre a sua importância no processo aprendizagem

Neste artigo é discutido o impacto relevante causado pelo uso de simulações na aprendizagem significativa. O acesso às simulações na área de Física representa um incremento considerável na compreensão conceitual dos alunos. Foi utilizado um Ambiente de Apoio a Laboratórios Virtuais e, a partir da análise dos registros no ambiente, das interações dos alunos, dos questionários aplicados, das entrevistas com o professor e do acompanhamento do rendimento dos alunos, foram levantados indícios capazes de sustentar o impacto positivo do uso do ambiente na aprendizagem. O trabalho encontrou suporte teórico nas teorias de aprendizagem construtivistas, especialmente no que tange à aprendizagem significativa de Jonassen, incluindo sua transposição para Ambientes de Aprendizagem Construtivista. Os indícios e as reflexões realizadas apontam que a integração do ambiente às práticas pedagógicas da disciplina beneficiaram significativamente a aprendizagem dos alunos.In this paper we discuss the use of simulations, causing a relevant impact to the meaningful learning. The access to the virtual simulations in the Physics field represents a considerable increase of conceptual understanding to the students. A Support Environment to Virtual Laboratories was used and from its records analysis, students` interactions, applied questionnaires, interviews with teachers, and we have found indications to support the positive impact of the environment in the learning process. The theoretical support of this paper is based on the constructive learning theories, especially the one referred in Jonassen’s Meaningful Learning, including his Constructive Learning Environments transpositions. The observations point that the integration of the virtual environment with the educational practices of the Physics significantly improves the learning process of the students.IV Workshop de Tecnología Informática Aplicada en Educación (WTIAE)Red de Universidades con Carreras en Informática (RedUNCI

Event Texture Search for Phase Transitions in Pb+Pb Collisions

NA44 uses a 512 channel Si pad array covering $1.5 <\eta < 3.3$ to study charged hadron production in 158 A GeV Pb+Pb collisions at the CERN SPS. We apply a multiresolution analysis, based on a Discrete Wavelet Transformation, to probe the texture of particle distributions event-by-event, allowing simultaneous localization of features in space and scale. Scanning a broad range of multiplicities, we search for signals of clustering and of critical behavior in the power spectra of local density fluctuations. The data are compared with detailed simulations of detector response, using heavy ion event generators, and with a reference sample created via event mixing. An upper limit is set on the probability and magnitude of dynamical fluctuations