Signature Function
Mostrando 1-12 de 109 artigos, teses e dissertações.
-
1. Characterization of CBD-CdS Doped with Some Rare Earths III (Eu3+,Ce3+) as Function of Synthesis Time
Rare earths (Europium, cerium)-doped CdS nanofilms are prepared using the growth technique chemical bath deposition (CBD) at the reservoir temperature of 70±2°C varying the synthesis time in a wide range. For the rare earths doped CdS nanofilms the synthesis time was ranged from 80 to 135 min. The rare earths molar concentration was in the range 0.0≤x≤
Mat. Res.. Publicado em: 01/02/2018
-
2. Does comorbid bipolar disorder increase neuropsychological impairment in children and adolescents with ADHD?
Objective: To assess differences in executive functioning between children and adolescents with attention-deficit/hyperactivity disorder (ADHD) comorbid or not with bipolar disorder (BD), and to study the neuropsychological profile of subjects with the comorbidity in a clinical sample from a developing country. Method: Case-control study comparing 23 partic
Rev. Bras. Psiquiatr.. Publicado em: 2014-03
-
3. Estudo dos genes NDRG1, Par-4, osteonectina e pontina, em tecido mamário hiperplásico através de técnica de imunohistoquímica / Study of NDRG1, Par-4, osteonectin and pontin expression in hyperplastic breast lesions with immunohistochemical technique
INTRODUCTION: Breast cancer is a leading cause of death among women all over the Word. Proliferative lesions of the breast are believed to be precursors of or markers of increased risk for breast carcinoma. Although the active research in the field of breast cancer, the early molecular events associated with cancer evolution and progression are still poorly
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/05/2011
-
4. Vehicle dynamic response due to pavement roughness
The goal of the present study is the development of a spectral method to obtain the frequency response of the half-vehicle subjected to a measured pavement roughness in the frequency domain. For this purpose, a half-vehicle dynamic model with a two-point delayed base excitation was developed to correlate with the spectral density function of the pavement rou
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2011-09
-
5. A formação do gosto musical na crítica jornalística de Herbert Caro no Correio do Povo (1968-1980) : da torre de marfim ao rés do chão
This dissertation intends to analyze how the critic Hebert Caro (1906-1991) entices the liking of classical music, considering that journalism has the mediation function of approximating readers to specialized fields and that the criticism is a fertile expression in this sense. German Jew rooted in Brazil in 1935, Caro was an active figure in Porto Alegre¿s
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
-
6. Levantamento dos níveis de radioatividade natural em águas do alto Vale do Ribeira à planície costeira do litoral sul do Estado de São Paulo / Assessment of natural radioctivity levels in waters from Higher Ribeira Valley until the southern Sao Paulo State coastal plain
The complex exchange of fluvial, subsurface and seawater within a coastal area directly affects global biogeochemical cycles and the application of isotopic tracers, mainly natural radionuclides from U and Th series, is a powerful tool to track sources and sinks of trace elements and nutrients to this systems. The unique Ra signature applied to quantify the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/11/2010
-
7. EstatÃstica de contagem de carga e efeitos de interferÃncia em sistemas mesoscÃpicos
In this thesis we presented a detailed study about full counting statistics of transmitted charge and accumulated phase and the quantum interference corrections to the average conductance and the average shot-noise power in non-ideal ballistic chaotic cavities. In the theoretical analysis of this mesoscopic system, we obtained analytical expressions for the
Publicado em: 2009
-
8. Um exame da adjetivação no uso efetivo da língua na prática social do discurso publicitário
This dissertation is situated on the area of Critical Discourse Analysis, focusing both on a socio-cognitive perspective and on Social Semiotics, and its theme is the adjectivation processes found in written advertisements published in different magazines. The general purpose is to contribute for studies of Portuguese as it is spoken in Brazil and used in ad
Publicado em: 2009
-
9. A paternidade autoral em Memórias Póstumas de Brás Cubas no contexto do modelo realista-naturalista do século XIX
The purpose of this study is to investigate how the authoral division is processed in the romance Memórias Póstumas de Brás Cubas and what it represents to the realistic-cienficist literary patterns of the XIX century. Having as a central focus the questioning about the authorial signature, the critical analysis concentrated itself in the strategies of th
Publicado em: 2008
-
10. Métodos para aproximação poligonal e o desenvolvimento de extratores de características de forma a partir da função tangencial
Whereas manually drawn contours could contain artifacts related to hand tremor, automatically detected contours could contain noise and inaccuracies due to limitations or errors in the procedures for the detection and segmentation of the related regions. To improve the further step of description, modeling procedures are desired to eliminate the artifacts in
Publicado em: 2008
-
11. Classificação estrutural de famílias de proteínas com base em mas de contatos.
The objective of this work was to verify if it is possible to classify protein chain structures using only the chemical interactions between its residues. Through contact maps and using three different metrics based on image processing techniques we have showed that we are able to classify such structures in families of similar structure and function with pr
Publicado em: 2008
-
12. Morfologia e dinâmica das irregularidades ionosféricas de pequena escala e imageamento ionosférico por GPS / Morphology and dynamic of small-scale ionospheric irregularities and ionospheric imaging by GPS
The signals received from the Global Positioning System (GPS) satellites were used to study the behavior of three important geophysical parameters of the ionosphere: small-scale irregularities, their zonal drift velocities and the Total Electron Content (TEC). From the fluctuations (scintillations) in the amplitude of the GPS L1 signal (1575.42 MHz), detecte
Publicado em: 2008