1,923 research outputs found
A jornada de uma experiência: da improvisação à máscara teatral
TCC(graduação) - Universidade Federal de Santa Catarina. Centro de Comunicação e Expressão. Artes CênicasO presente estudo aborda um método de preparação de atores, que vai das
improvisações silenciosas até o uso de máscaras. Neste trabalho, percorro o processo
que vivenciei com a professora Maria de Fátima S. Moretti (Sassá Moretti), do curso
de Artes Cênicas/UFSC, nas aulas de Improvisação I e II até as aulas de Teatro de
Animação I, envolvendo máscaras neutras e larvárias, o que motivou a formação do
grupo de pesquisa Abaporu. Orientados pela já referida professora, o grupo tem em seu
cerne o trabalho com máscaras, sobretudo as máscaras larvárias e o estudo sobre a
pedagogia de Lecoq.This study addresses a method of actor's preparation, from silent improvisations to the
use of the masks. In this work, I travel over the process that I experienced with the
teacher Maria de Fátima de S. Moretti, at Performing Arts/UFSC) in the classes of
Improvisation I and II till Puppet Theater I, involving neutral and larval masks, class
that motivated the formation of the research's group Abaporu. With the guidance of this
teacher, the group has at its core the work with masks and especially with larval masks,
the study about Lecoq's pedagogy
The Desalination Process Driven by Wave Energy: A Challenge for the Future
The correlation between water and energy is currently the focus of several investigations. In particular, desalination is a technological process characterized by high energy consumptionnevertheless, desalination represents the only practicable solution in several areas, where the availability of fresh water is limited but brackish water or seawater are present. These natural resources (energy and water) are essential for each otherenergy system conversion needs water, and electrical energy is necessary for water treatment or transport. Several interesting aspects include the study of saline desalination as an answer to freshwater needs and the application of renewable energy (RE) devices to satisfy electrical energy requirement for the desalination process. A merge between renewable energy and desalination is beneficial in that it is a sustainable and challenging option for the future. This work investigates the possibility of using renewable energy sources to supply the desalination process. In particular, as a case study, we analyze the application of wave energy sources in the Sicilian context.Univ Palermo UNIPA, Dept Energy Informat Engn & Math Models, I-90128 Palermo, ItalyUniv Fed Sao Paulo UNIFESP, Dept Ciencias Exatas & Terra, BR-09910720 Sao Paulo, BrazilDepartament of Ciências Exatas e da Terra, Universidade Federal de São Paulo (UNIFESP), Sao Paulo 09910-720, BrazilWeb of Scienc
Quando as flores caem: O teatro lambe-lambe e a iluminação cênica como modelos de criação desierárquica
Através da análise da concepção do espetáculo de teatro lambe-lambe Quando as Flores Caem apresento o meu estudo de iluminação cênica no teatro de sombras em escala reduzida, com a perspectiva da desierarquização dos elementos cênicos através de uma relação de equilÃbrio na criação. A desierarquização é o movimento ou a ação de quebrar com as hierarquias, para que os elementos cênicos assumam um lugar de igualdade, com o mesmo valor hierárquico, de modo que, consequentemente, a criação se dá de forma integrada. Entre o processo e o espetáculo, apresento aqui um breve estudo de caso para o teatro lambe-lambe e a iluminação cênica.
Resonant optical control of the structural distortions that drive ultrafast demagnetization in CrO
We study how the color and polarization of ultrashort pulses of visible light
can be used to control the demagnetization processes of the antiferromagnetic
insulator CrO. We utilize time-resolved second harmonic generation
(SHG) to probe how changes in the magnetic and structural state evolve in time.
We show that, varying the pump photon-energy to excite either localized
transitions within the Cr or charge transfer states, leads to markedly
different dynamics. Through a full polarization analysis of the SHG signal,
symmetry considerations and density functional theory calculations, we show
that, in the non-equilibrium state, SHG is sensitive to {\em both} lattice
displacements and changes to the magnetic order, which allows us to conclude
that different excited states couple to phonon modes of different symmetries.
Furthermore, the spin-scattering rate depends on the induced distortion,
enabling us to control the timescale for the demagnetization process. Our
results suggest that selective photoexcitation of antiferromagnetic insulators
allows fast and efficient manipulation of their magnetic state.Comment: 7 pages, 5 figure
A procedure to evaluate the indoor global quality by a sub objective-objective procedure
This paper proposes two complementary procedures for assessing the indoor global
comfort: the first one, prevalently objective, is based on the acquisition of microclimate measured
data and computed subjective values; the second one, that is purely subjective, uses a questionnaire
drawn from the ISO/DP 10551 Recommendation. An application to some lecture-halls is here showe
A case study to the Evaluation of Global Environmental Quality, concerning thermal, acoustic and atmospheric conditions of urban areas
In this paper we propose an operative procedure aimed at assessing and check the global
environmental quality in the urban areas. This methodology is set up by using an ergonomic approach
that analyses the interaction man-environment in terms of cause-effect and uses information and data
from various sources contributing to the formation of discomfort degrees.[1-2] The representation
technique by normo-grams is used for showing some applications executed along the urban territory
of Palermo and allows to evaluate very simply all the parameters involved in human comfort. This
paper is divided in 5 sections, after the introduction in section 2 a review of the principal simple and
complex indexes is presented, in section 3 the methodology used to assess the air quality is presented
and in section 4 some experimental results on some areas of Palermo are presented, finally in section
5 some conclusions are drawn.[3-4
Abnormal temporal coupling of tactile perception and motor action in Parkinson's disease
Evidence shows altered somatosensory temporal discrimination threshold (STDT) in Parkinson's disease in comparison to normal subjects. In healthy subjects, movement execution modulates STDT values through mechanisms of sensory gating. We investigated whether STDT modulation during movement execution in patients with Parkinson's disease differs from that in healthy subjects. In 24 patients with Parkinson's disease and 20 healthy subjects, we tested STDT at baseline and during index finger abductions (at movement onset "0", 100, and 200 ms thereafter). We also recorded kinematic features of index finger abductions. Fifteen out of the 24 patients were also tested ON medication. In healthy subjects, STDT increased significantly at 0, 100, and 200 ms after movement onset, whereas in patients with Parkinson's disease in OFF therapy, it increased significantly at 0 and 100 ms but returned to baseline values at 200 ms. When patients were tested ON therapy, STDT during index finger abductions increased significantly, with a time course similar to that of healthy subjects. Differently from healthy subjects, in patients with Parkinson's disease, the mean velocity of the finger abductions decreased according to the time lapse between movement onset and the delivery of the paired electrical stimuli for testing somatosensory temporal discrimination. In conclusion, patients with Parkinson's disease show abnormalities in the temporal coupling between tactile information and motor outflow. Our study provides first evidence that altered temporal processing of sensory information play a role in the pathophysiology of motor symptoms in Parkinson's disease
Enhanced photogeneration of polaron pairs in neat semicrystalline donor-acceptor copolymer films via direct excitation of interchain aggregates
We investigate the photogeneration
of polaron pairs (PPs) in neat
films of the semicrystalline donor–acceptor semiconducting
copolymer PCPDTBT. Carefully selecting the solution-processing procedures,
we obtain films with different amounts of crystallinity and interchain
aggregation. We compare the photogeneration of PPs between the films
by monitoring their photoinduced absorption in ultrafast pump–probe
experiments, selectively exciting nonaggregated or aggregated polymer
chains. The direct photoexcitation of interchain π-aggregates
results in prompt (<100 fs) charge generation. Compared to the
case where nonaggregated chains are excited, we find an 8-fold increase
in the prompt PP to singlet-exciton ratio. We also show that highly
crystalline lamellar nanostructures not containing π-stacked
or any light-absorbing aggregates do not improve the efficiency of
PP photogeneration. Our results show that light absorption from interchain
aggregates is highly beneficial for charge photogeneration in semiconducting
polymers and should be taken into account when optimizing film morphologies
for photovoltaic devices
- …