Crystalline rock outcrops in the Atlantic Forest of northeastern Brazil: Vascular flora, biological spectrum, and invasive species

We studied the vegetation of two crystalline rock outcrops in the Atlantic Forest of northeastern Brazil. We recorded typically rupicolous species, which are rare or classified as extremely endangered, such as Aechmea guainumbiorum, found exclusively in one of the study sites. In both areas there was a predominance of therophytes over other life-forms, in contrast to observations made in rock outcrops of the southern Atlantic Forest. Therophytes also stood out in other rock outcrops at similar latitudes as our study site, regardless of the surrounding vegetation. Plants of other life-forms had significantly lower richness and showed adaptations to drought, such as succulent stem, pseudobulbs, dense pilosity, and underground storage organs. Our results suggest that invasive species may modify the vegetation of crystalline rock outcrops, as they change the number of species of all life-forms in comparison between sites. Hence, our results present the biological identity of these rupicolous habitats, which are marginal to forests, and point to the need for conserving them, in order to protect the Atlantic Forest's biodiversity. © 2013 Botanical Society of Sao Paulo.

Evidence for euphotic zone anoxia during the deposition of Aptian source rocks based on aryl isoprenoids in petroleum, Sergipe-Alagoas Basin, northeastern Brazil

Four crude oil samples from the Sergipe-Alagoas Basin, northeastern Brazil, were analyzed using full scan gas chromatography-quadrupole mass spectrometry (GC-qMS) for biomarkers, in order to correlate them using aromatic carotenoids thereby enhancing knowledge about the depositional environment of their source rocks. The geochemical parameters derived from saturated fractions of the oils show evidence of little or no biodegradation and similar thermal maturation (Ts/(Ts+Tm) for terpanes, C29 αββ/(αββ+ααα), C27, and C29 20S/(20S+20R) for steranes). Low pristane/phytane ratios and the abundance of gammacerane and β-carotane are indicative of an anoxic and saline depositional environment for the source rocks. Moreover, we identified a large range of diagenetic and catagenetic products of the aromatic carotenoid isorenieratene, including C40, C33, and C32 diaryl isoprenoids and aryl isoprenoid derivatives with short side chains and/or additional rings. These results indicate anoxia in the photic zone during the deposition of the source rocks. © 2013 The Authors.

Eu não sei fazer música, mas eu faço: a banda de rock paulista Titãs

Pós-graduação em Ciências Sociais - FFC

Design com identidade: por meio de estudos sócio-culturais e dos signos

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Avaliação da interface de cinco sistemas de implantes e seus respectivos abutments com auxílio do método de microscopia eletrônica de varredura

Pós-graduação em Odontologia - FOA

Influência do tipo de fundição e uso de retificação na interface pilar/cilindro protético na adaptação marginal e tensão peri-implantar sobre conexão protética tipo Micro-Unit

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Corpos modernos e vigorexia na rede social virtual: ideais midiáticos e suas influências na imagem corporal masculina

Pós-graduação em Desenvolvimento Humano e Tecnologias - IBRC

A Assembléia Constituinte de 1823 e sua posição em relação à construção da cidadania no Brasil

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

A interface música e linguística como instrumental metodológico para o estudo da prosódia do português arcaico

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Mapeamento geológico - estrutural do astroblema de cerro do Jarau - RS Brasil

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Estudo de controladores aplicados a inversores para UPS com operação ilhada

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

The use of instantaneous phase for improving sparse arrays images

Sparse arrays have pitch larger than half-wavelength (lambda/2) and there is a reduced number of elements in comparison with a full-populated array. Consequently, there is a reduction in cost, data acquisition and processing. However, conventional beamforming techniques result in large side and grating lobes, and consequently in image artifacts. In this work the instantaneous phase of the signals is used in a beamforming technique instead of the instantaneous amplitudes to improve images obtained from sparse arrays configurations. A threshold based on a statistical analysis and the number of signals used for imaging is applied to each pixel, in order to determine if that pixel is related to a defect or not. Three sets of data are used to evaluate the technique, considering medical and non-destructive testing: a simulated point spread function, a medical phantom and an aluminum plate with 2 lambda-, 7 lambda- and lambda-pitch, respectively. The conventional amplitude image is superposed by the image improved by the instantaneous phase, increasing the reflectors detectability and reducing artifacts for all cases, as well as dead zone for the tested plate.

Instantaneous Phase Threshold for Reflector Detection in Ultrasonic Images

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

A simple and fast method for assessment of the nitrogen-phosphorus-potassium rating of fertilizers using high-resolution continuum source atomic and molecular absorption spectrometry

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Aikido: via para ascese marcial

Aikido is a Japanese martial art developed in the 20th century by Morihei Ueshiba. This self defense art, as it is known, is trained around the world as a noncompetitive practice. This work aimed to investigate and circumscribe the history of this martial art presenting features of its singularity. Akido´s Cultural History was used as a theoretical approach to build the historical background. The work was divided in five chapters as respectively named and described: Japan´s historical contextualization - it seeks to show the changing processes that happened in Japan which were arising from the insertion of other cultures, and how that insertion led the country to modernize itself and turn into a great world power. The ancient art: Aiki Jujutsu Daitoryu - talks about this samurai martial art which ensured the Aikido to obtain as the source technique the aiki, and the Xintoist practice. The history of a master: Morihei Ueshiba - presents some defining facts and moments from the master Ueshiba´s history, which points both to the changes occurred in the country, and to the ones that led the master to justify and broadcast the martial art. Aikido: The Budo art - portraits the Aikido´s meaning and the way that it was built to present the Aikido as a Budo art. And to finalize, Martial asceticism - seeks to make the dialogue between the cultures, from the meaning of this chapter title words (martial asceticism), as well as to point facts from the contemporaneity which provoke reflections upon the present practice