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O poder da geometria e da perspectiva na concepção do objecto artístico

Santos, Pedro Miguel Filipe dos, 1963-
Fonte: Universidade de Lisboa Publicador: Universidade de Lisboa
Tipo: Dissertação de Mestrado
Publicado em //2010 POR
Relevância na Pesquisa
16.3%
Tese de mestrado, Desenho, Universidade de Lisboa, Faculdade de Belas-Artes, 2010; The present Dissertation is an analysis of the importance of Geometry and Perspective in the conception of the artistic object, in particular painting and drawing. It is in this context that this work is developed through a journey which begins in the Classical period, goes through all the most relevant aspects of perspective representation of the Renaissance and ends in the Baroque period, with the analysis of the painting of the ceiling of São Paulo church in Lisbon. In the beginning of this Dissertation we refer the first attempts to represent depth throughout art history, with Greek examples in ceramics and architecture and a special emphasis on the Parthenon in Athens. In the Renaissance, the importance of the lessons of Alberti and Piero della Francesca produce an impact in this period’s painting, influencing some circles of painting workshops and artists and putting perspective on a par with mathematics, in the sphere of the scientific knowledge of the time. Still in this same period, but in Northern Europe, the treaty of Jean Pelerin, known as Viator, with its first edition in 1505, more practical and with more diversified solutions which deny many a time the characteristic centralism of the Italian perspective...

Young Children’s Competency to Take the Oath: Effects of Task, Maltreatment, and Age

Lyon, Thomas D.; Carrick, Nathalie; Quas, Jodi A.
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
EN
Relevância na Pesquisa
16.06%
This study examined maltreated and non-maltreated children’s (N = 183) emerging understanding of “truth” and “lie,” terms about which they are quizzed to qualify as competent to testify. Four- to six-year-old children were asked to accept or reject true and false (T/F) statements, label T/F statements as the “truth” or “a lie,” label T/F statements as “good” or “bad,” and label “truth” and “lie” as “good” or “bad.” The youngest children were at ceiling in accepting/rejecting T/F statements. The labeling tasks revealed improvement with age and children performed similarly across the tasks. Most children were better able to evaluate “truth” than “lie.” Maltreated children exhibited somewhat different response patterns, suggesting greater sensitivity to the immorality of lying.

2.5-year-olds Succeed at a Verbal Anticipatory-Looking False-Belief Task

He, Zijing; Bolz, Matthias; Baillargeon, Renée
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
EN
Relevância na Pesquisa
26.43%
Recent research suggests that infants and toddlers succeed at a wide range of nonelicited-response false-belief tasks (i.e., tasks that do not require children to answer a direct question about a mistaken agent’s likely behavior). However, one exception to this generalization comes from verbal anticipatory-looking tasks, which have produced inconsistent findings with toddlers. One possible explanation for these findings is that toddlers succeed when they correctly interpret the prompt as a self-addressed utterance (making the task a nonelicited-response task), but fail when they mistakenly interpret the prompt as a direct question (making the task an elicited-response task). Here, 2.5-year-old toddlers were tested in a verbal anticipatory-looking task that was designed to help them interpret the anticipatory prompt as a self-addressed utterance: the experimenter looked at the ceiling, chin in hand, during and after the prompt. Children gave evidence of false-belief understanding in this task, but failed when the experimenter looked at the child during and after the prompt. These results reinforce claims of robust continuity in early false-belief reasoning and provide additional support for the distinction between nonelicited- and elicited-response false-belief tasks. Three accounts of the discrepant results obtained with these tasks—and of early false-belief understanding more generally—are discussed.

Efficiency of different airborne disinfection products for reducing the risk of Aspergillus fumigatus infection from hospital false ceiling exposure

Loeffert, S; Gustin, M-P; Cassier, P; Bouche, P; Lion, C; Massacrier, M; Perraud, M; Vanhems, P
Fonte: BioMed Central Publicador: BioMed Central
Tipo: Artigo de Revista Científica
Publicado em 16/06/2015 EN
Relevância na Pesquisa
26.06%

MTR Safety , MTR Safety. Platform screen doors. The false ceiling over the platform is being removed in preparation for the installation of the platform screen decors. This is the first stage in the HK$2 billion project to install platform screen decors

Fonte: Asian Studies, Baker Institute for Public Policy, Rice University Publicador: Asian Studies, Baker Institute for Public Policy, Rice University
ENG
Relevância na Pesquisa
26.06%
The origin of the image is Domestic. Watermark Unknown.

A System For Computer-Assisted Surgery With Intraoperative CT Imaging

Oentoro, Anton
Fonte: Quens University Publicador: Quens University
Tipo: Tese de Doutorado Formato: 3188530 bytes; application/pdf
EN; EN
Relevância na Pesquisa
16.06%
Image-guided interventions using intraoperative three-dimensional (3D) imaging can be less cumbersome than systems dependent on preoperative images, especially by needing neither image-to-patient registration nor a lengthy process of segmenting and generating a 3D model. In this dissertation, a method for computer-assisted surgery using direct navigation on intraoperative images is presented. In this system the registration step of a navigated procedure was divided into two stages: preoperative calibration of images to a ceiling-mounted optical tracking system, and intraoperative tracking during acquisition of the 3D image. The preoperative stage used a custom-made multi-modal calibrator that could be optically tracked and also contained fiducial spheres for radiological detection; a robust registration algorithm was used to compensate for the high false-detection rate that arose from the optical light-emitting diodes. Intraoperatively, a tracking device was at- tached to bone models that were also instrumented with radio-opaque spheres; a calibrated pointer was used to contact the latter spheres as a validation. The fiducial registration error of the calibration stage was approximately 0.1 mm with the Innova 3D X-ray fluoroscope and 0.7 mm with the mobile-gantry CT scanner. The target registration error in the valida- tion stage was approximately 1.2 mm with the Innova 3D X-ray fluoroscope and 1.8 mm with the mobile-gantry CT scanner. These findings suggest that direct registration can be a highly accurate means of performing image-guided interventions in a fast...

Estrutura metálica do teto falso da sala de comando da central Venda Nova III – acompanhamento da conceção, fabrico e montagem

Silva, João Luís Parente da
Fonte: Instituto Politécnico do Porto Publicador: Instituto Politécnico do Porto
Tipo: Dissertação de Mestrado
Publicado em //2014 POR
Relevância na Pesquisa
46.68%
O primeiro objetivo deste relatório, que adiante se desenvolve, é apresentar o trabalho realizado para a obtenção de conhecimentos que justifiquem a atribuição do grau de mestre em engenharia, no ramo das construções. O estágio, que a este trabalho dá sustentação, foi feito na empresa Metaloviana, onde foi possível acompanhar as várias fases de conceção, fabrico e montagem de um teto falso, designadamente na sala de comando da central Venda Nova III, de aproveitamento hidroelétrico. Tendo Portugal objetivos cada vez mais ambiciosos na utilização de energias renováveis, aproveitando, entre outros, os recursos hídricos para a produção de eletricidade, a EDP Produção fez estudos onde verificou que a realização de reforços de potência em aproveitamento já existentes, seria uma forma economicamente bastante atrativa e ao mesmo tempo responderia às crescentes solicitações energéticas. É neste âmbito que se insere o Reforço de Potência em Venda Nova III. A empresa Metaloviana, com instalações fabris em Viana do Castelo, tem todo um historial e capacidade, reconhecida nacional e internacionalmente. Este, confere a certeza de ter acompanhado um trabalho de ponta, devidamente creditado e fundamentado numa qualidade e mérito...

Knowing Right From Wrong In Mental Arithmetic Judgments: Calibration Of Confidence Predicts The Development Of Accuracy

Rinne, Luke F.; Mazzocco, Michèle M. M.
Fonte: Public Library of Science Publicador: Public Library of Science
Tipo: Artigo de Revista Científica
Publicado em 02/07/2014 EN
Relevância na Pesquisa
16.06%
Does knowing when mental arithmetic judgments are right—and when they are wrong—lead to more accurate judgments over time? We hypothesize that the successful detection of errors (and avoidance of false alarms) may contribute to the development of mental arithmetic performance. Insight into error detection abilities can be gained by examining the “calibration” of mental arithmetic judgments—that is, the alignment between confidence in judgments and the accuracy of those judgments. Calibration may be viewed as a measure of metacognitive monitoring ability. We conducted a developmental longitudinal investigation of the relationship between the calibration of children's mental arithmetic judgments and their performance on a mental arithmetic task. Annually between Grades 5 and 8, children completed a problem verification task in which they rapidly judged the accuracy of arithmetic expressions (e.g., 25+50 = 75) and rated their confidence in each judgment. Results showed that calibration was strongly related to concurrent mental arithmetic performance, that calibration continued to develop even as mental arithmetic accuracy approached ceiling, that poor calibration distinguished children with mathematics learning disability from both low and typically achieving children...

An Exact Formula for the Average Run Length to False Alarm of the Generalized Shiryaev-Roberts Procedure for Change-Point Detection under Exponential Observations

Du, Wenyu; Sokolov, Grigory; Polunchenko, Aleksey S.
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Relevância na Pesquisa
26.32%
We derive analytically an exact closed-form formula for the standard minimax Average Run Length (ARL) to false alarm delivered by the Generalized Shiryaev-Roberts (GSR) change-point detection procedure devised to detect a shift in the baseline mean of a sequence of independent exponentially distributed observations. Specifically, the formula is found through direct solution of the respective integral (renewal) equation, and is a general result in that the GSR procedure's headstart is not restricted to a bounded range, nor is there a "ceiling" value for the detection threshold. Apart from the theoretical significance (in change-point detection, exact closed-form performance formulae are typically either difficult or impossible to get, especially for the GSR procedure), the obtained formula is also useful to a practitioner: in cases of practical interest, the formula is a function linear in both the detection threshold and the headstart, and, therefore, the ARL to false alarm of the GSR procedure can be easily computed.; Comment: 9 pages; Accepted for publication in Proceedings of the 12-th German-Polish Workshop on Stochastic Models, Statistics and Their Applications