759 research outputs found
Integração de bases de dados utilizando a mobilidade do código
Full text linkDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico.O objetivo deste trabalho é mostrar a integração de bases de dados distintas, como tema de dissertação do curso de Pós-Graduação da Universidade Federal de Santa Catarina. Esta integração permite utilizar bancos de dados existentes nas empresas que não podem ser desprezados a curto prazo. Para tal, a utilização de agentes móveis permite que esta integração seja transparente para o usuário, visto que o agente é o responsável pela pesquisa de informações armazenadas nesses bancos. Além disso, os agentes móveis também são responsáveis pela comunicação com outros agentes, particionando as tarefas entre agentes estáticos com a finalidade de acesso aos dados em uma determinada base
Reclamações ambientais em Aveiro, Portugal: atores, preocupações, padrão territorial e resoluções
Full text linkThis paper presents an environmental diagnosis based on public complaints on environmental
issues submitted to the Environmental Department of the Aveiro City Council, Portugal, between
2000 and 2005. It discusses the potential influences of these in local environmental planning
and governance. The paper has been organised into five sections. The first of these introduces
the study. The second section focuses on the conceptual approaches relating to environmental
grassroots movements, the main actors involved in these movements and the role played by
local government. It also contains a brief review of the most recent urban environmental
quality challenges in the European context together with a description of the main features of
the associated political and legal framework in Portugal. The third section describes the case
study and the methodology used. The results of the empirical study are detailed in the fourth
section. The final section critically analyses these results with emphases on the temporal
evolution of the submission of complaints, the actors involved, the local environmental problems
and their associated spatial pattern as well as the responses given by the City Council. This
information may then be used to provide a useful indicator for the perception of environmental
quality as well as a credible instrument for the visualisation and evaluation of local performance
in terms of environmental planning and management.AlBan Programme - n. E05M053040B
Spektrální diagnostika B[e] hvězd
No full textTitle: Spectroscopic diagnosis of B[e] stars Author: Nela Dvořáková Department: Astronomical Institute of Charles University Supervisor: doc. Mgr. Daniela Korčáková, Ph.D. The B[e] stars is a common designation for a diverse group of stars of different types and evolutionary stages exhibiting forbidden emission lines and a strong infrared excess. We focus on the most mysterious group, called the FS CMa stars. These stars have the potential to help us understand the formation of strong magnetic fields in stars. The most recent and the most likely scenario explaining the nature of at least some of the FS CMa stars has to do with the chaotic process of stellar mergers. This process itself is not yet well known, however, the FS CMa group potentially contain a whole evolutionary sequence of mergers. Apart from the B[e] features or the multiperiodic behaviour, observed in spectroscopy as well as photometry, one needs to account for the strong magnetic field found in the FS CMa star IRAS 17449+2320 (Korčáková et al., 2022). This is what led to the first magneto-hydrodynamic simulations of the matter accretion onto a post-merger (Moranchel-Basurto et al., 2023, 2024). One of the consequences of such a magnetic field could be the presence of a corona-like region which may be confirmed by the...Název: Spektrální diagnostika B[e] hvězd Autor: Nela Dvořáková Oddělení: Astronomický Ústav Karlovy University Vedoucí práce: doc. Mgr. Daniela Korčáková, Ph.D. B[e] hvězdy jsou společný název pro různorodou skupinu hvězd různých typů a vývojových stádií, která se vyznačuje zakázanými emisními čarami a výrazným nadbytkem energie v in- fračervené oblasti. Zaměřujeme se na tu nejzáhadnější podskupinu nazývanou FS CMa hvězdy. Tyto hvězdy nám mohou pomoci porozumnět tvorbě silných magnetických polí ve hvězdách. Tím nejnovějším a zároveň nepravděpodobnějším vysvětlením pro původ některých FS CMa hvězd je chaotický proces splynutí dvou hvězd neboli mergeru. Samotný proces není ještě dobře známý, avšak, mezi FS CMa hvězdami se možná skrývá celá vývojová posloupnost takových mergerů. Kromě spektrálních charakteristik, typických pro B[e] hvězdy, a multiperiodicity, která se pozoruje, jak ve spektroskopii, tak ve fotometrii, je třeba vzít v úvahu silné magnetické pole objevené u FS CMa hvězdy IRAS 17449+2320 (Korčáková a kol., 2022). Tento objev vedl k prvním magneto-hydrodynamickým simulacím akrece hmoty na produkt po mergeru (Moranchel-Basurto a kol., 2023, 2024). Přítomnost oblasti podobné...Astronomický ústav UKAstronomical Institute of Charles UniversityFaculty of Mathematics and PhysicsMatematicko-fyzikální fakult
Spectroscopic diagnosis of B[e] stars
No full textTitle: Spectroscopic diagnosis of B[e] stars Author: Nela Dvořáková Department: Astronomical Institute of Charles University Supervisor: doc. Mgr. Daniela Korčáková, Ph.D. The B[e] stars is a common designation for a diverse group of stars of different types and evolutionary stages exhibiting forbidden emission lines and a strong infrared excess. We focus on the most mysterious group, called the FS CMa stars. These stars have the potential to help us understand the formation of strong magnetic fields in stars. The most recent and the most likely scenario explaining the nature of at least some of the FS CMa stars has to do with the chaotic process of stellar mergers. This process itself is not yet well known, however, the FS CMa group potentially contain a whole evolutionary sequence of mergers. Apart from the B[e] features or the multiperiodic behaviour, observed in spectroscopy as well as photometry, one needs to account for the strong magnetic field found in the FS CMa star IRAS 17449+2320 (Korčáková et al., 2022). This is what led to the first magneto-hydrodynamic simulations of the matter accretion onto a post-merger (Moranchel-Basurto et al., 2023, 2024). One of the consequences of such a magnetic field could be the presence of a corona-like region which may be confirmed by the..
Bauxites and related paleokarst in Southern Italy, Sicily and Sardinia
No full textA brief summarization of general geological and stratigraphical setting and genetical characteristics of bauxite deposits and related paleokarst in Peninsular Italy, Sicily and Sardinia is presented. The most important features and data are demonstrated in maps, diagrams and tables. -Author
Modulatory effects of transcranial direct current stimulation (tDCS) on words and non-words reading task
No full textTITLE:
Modulatory effects of transcranial direct current stimulation (tDCS) on words and non-words reading task
AUTHOR(S):
Margherita Forgioneb, Patrizio Tressoldi b, Daniela Mapelli b, Paulo Sergio Boggio a
a Centro de Ciências Biológicas e da Saúde, Universidade Presbiteriana Mackenzie, Sao Paulo
b Dipartimento di Psicologia Generale, Università degli Studi di Padova, Italia
INTRODUCTION:
In recent past tDCS has gained much attention for rehabilitation purposes. Moreover, few studies have been conducted to investigate its efficacy on reading process. The aim of these studies was to investigate the role of left and right posterior temporal cortex in words and non-words reading process, through tDCS. We focused on the online task to see if it can influence the subjects’ performance. We hypothesized that the anodal stimulation would facilitate the task execution compared to sham and cathodal, in terms of reaction times and accuracy.
METHOD:
Twenty good readers were tested in 3 sessions (sham, anodal, cathodal), with different online task (text reading or music listening). tDCS was applied bilaterally over posterior temporal lobe, with a current of 1,5 mA, lasting for 20 minutes. Participants had to read aloud words or non-words, before and after stimulation. We recorded reaction times and accuracy for words and non-words, before and after stimulation.
RESULTS:
Regarding reaction times, we found significant effect of cathodal tDCS in short words reading task. Similarly, we also found an improvement in reading accuracy for non-words after tDCS. The online task doesn’t seem to affect the performance.
CONCLUSIONS:
We found a modulatory effect of cathodal tDCS in words reading task, suggesting a compensatory mechanisms of the right hemisphere. To verify this hypothesis, we are investigating different montages, involving left or right hemisphere. Further studies are necessary to understand the modulation effects of this technique, in addition with other methodologies, such as eye tracker, and with clinical sample, in particular dyslexics
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Recent B-physics results at CDF
No full textBetween 1992 and 1996 CDF collected about 100 pb{sup {minus}1} of data at a {radical}s = 1.8 TeV at the Fermilab Tevatron collider. This data sample led to a large number of precision measurements of B hadrons properties including their masses, lifetimes and neutral B meson oscillation parameters and the discovery of the B{sub c} meson. Here the author reports on three recent results: the measurement of the B{sup +} production cross section, the search for radiative penguin B hadron decays and the measurement of the CP violating parameter sin 2{beta}. These results are significant examples of the breadth of the CDF program. In 2001 the main injector will allow the Tevatron initially to deliver 1 fb{sup {minus}1} per year at {radical}s = 2 TeV. The CDF detector will undergo major upgrades which will further increase the B physics reach
Kalim Kashani
No full textKalīm Kāshāni, Abū Ṭālib (b. Hamadān, ca. 990-94/1581-85; d. Kashmir, 1061/1651), Persian poet and one of the leading exponents of the so-called Indian style (sabk-i hindī) particularly evident in his lyrics (ghazals). Poet laureate at the court of the Mughal emperor Shāh Jahān (1037-67/1628-57), he was author of a collection of original poems in different genres and a long narrative poem dedicated to celebrate his patron
Safety behaviors, compulsive behaviors, and therapist extensiveness as predictors of outcome in behavior for youth OCD
No full textThe efficacy of behavior therapy in treating adult OCD is well-documented and early trials in youth populations are encouraging (March et al., 1994; Piacentini et al., 2002; POTS Team, 2004), however, residual symptoms often persist. The study of process variables can provide suggestions for improving the development, delivery, and outcomes of psychological therapies (Kazdin & Nock, 2003). One potentially important variant in exposure procedures identified by the literature has been the use of safety behaviors. However, it has been difficult to draw conclusions regarding the effect of safety behaviors on OCD treatment because the term has been interpreted broadly across studies and results have been mixed. The current study uses observational coding of existing data to assess three predictors of outcome within two early exposure sessions and two late exposure sessions of a manualized exposure and response prevention program. Participants include 43 youth (ages 8 – 17 years) diagnosed with a principal OCD diagnosis who received a 12-week exposure and response prevention program. Predictors assessed via observational coding include safety behaviors (avoidance and escape), compulsive behaviors, and therapist extensiveness (therapist ability to engage the client in difficult exposures). Outcome was measured by symptom report (CY-BOCS) at midtreatment and post-treatment. It was hypothesized that higher average occurrence of safety and compulsive behaviors during exposure tasks would predict higher OCD symptoms while lower ratings of therapist extensiveness would predict higher OCD symptoms at mid-treatment and post-treatment. Interaction effects were also investigated. Multiple regression analyses demonstrated a significant relationship between safety behaviors exhibited during the early exposure phase and OCD symptoms at mid-treatment in the expected direction, B = 0.31, t = 2.09, p<.05, R2=.25. However, safety behavior in the late phase was not related to OCD symptoms at post-treatment nor was safety behavior throughout treatment significantly related to OCD symptoms at posttreatment. Significant findings involving compulsive behaviors, therapist extensiveness, and interaction effects did not emerge. Methodological limitations, such as restricted range of the independent variables and the need for a more frequently administered dependent variable, and recommendations for future studies are discussed.Psy.DIncludes bibliographical referencesby Daniela Colognor
Zona de amortecimento: principal estratégia na contenção de ambientes descaracterizados e invasão de espécies vegetais exóticas na estação ecológica de carijós
Full text linkTCC (graduação em Agronomia) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, 2009Apesar da grande importância econômica e ecológica dos manguezais, o ritmo de sua destruição fez com que este ecossistema sofresse intensa perda de suas áreas e as poucas que restam mesmo protegidas por lei, continue sob risco de perda de sua biodiversidade por meio da contaminação ambiental por espécies exóticas. Visando contemplar a preservação de áreas de mangue e restinga, estas inseridas dentro da Unidade de Conservação Estação Ecológica de Carijós, foi realizado por meio da identificação das áreas de vegetação modificadas no entorno da Unidade, a caracterização desses ambientes e o levantamento das espécies exóticas que estão invadindo tais áreas. Pode-se verificar o estabelecimento de 23 espécies exóticas identificadas no entorno da UC, algumas com possibilidades de sérios riscos de poluição biológica. Visando contemplar a preservação da UC é proposto o manejo para eliminar e principalmente estratégias de contenção do desenvolvimento de espécies exóticas nas áreas de proteção utilizando-se do instrumento de implantação da Zona de Amortecimento na Unidade, com restrições de uso do solo e ampliação de áreas de proteção
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