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Urban forest and environmental inequality in Campos dos Goytacazes, Rio de Janeiro, Brazil  

Microsoft Academic Search

Social and spatial inequality regarding environmental resources and services is one of most complex issues affecting contemporary urban life. The objective of this research is to study the spatial distribution of trees in public areas in Campos dos Goytacazes, Rio de Janeiro, Brazil. This research presents data gathered in ten neighborhoods in Campos. These neighborhoods were split into three distinct

Marcos A. Pedlowski; Victor Andrade Carneiro Da Silva; Janie Jasmim Corabi Adell; Nikolas C. Heynen



Identification and seasonal variation of atmospheric organic pollutants in Campos dos Goytacazes, Brazil  

Microsoft Academic Search

Organic aerosol samples collected during a 1 year study at three sites in the city of Campos dos Goytacazes, Rio de Janeiro, Brazil, were examined by gas chromatography and gas chromatography–mass spectrometry. Samples were acquired using a standard high-volume air sampler (Hi-Vol); extracts prepared and fractionated into aliphatic, aromatic and polar compounds. These compounds were quantified and their seasonal ambient

Débora de Almeida Azevedo; Celeste Yara Moreira dos Santos; Francisco Radler de Aquino Neto



Identification and seasonal variation of atmospheric organic pollutants in Campos dos Goytacazes, Brazil  

NASA Astrophysics Data System (ADS)

Organic aerosol samples collected during a 1 year study at three sites in the city of Campos dos Goytacazes, Rio de Janeiro, Brazil, were examined by gas chromatography and gas chromatography-mass spectrometry. Samples were acquired using a standard high-volume air sampler (Hi-Vol); extracts prepared and fractionated into aliphatic, aromatic and polar compounds. These compounds were quantified and their seasonal ambient concentration patterns discussed. High winter and low summer concentrations were observed for retene, polycyclic aromatic hydrocarbons and total suspended particulate matter (TSP), with a seasonal (winter) peak for all compounds studied. The higher concentrations observable from May to September may result from crop burning processes, which occur in the sugarcane plantations, mainly during this part of the year. The studied sites may be considered unpolluted as concentrations of benzo[a]pyrene and benzene were lower than the regulation lower limits. On the other hand, two sites were considered polluted by TSP determination.

de Almeida Azevedo, Débora; dos Santos, Celeste Yara Moreira; de Aquino Neto, Francisco Radler


Surface air radon progeny at São José dos Campos, Brazil  

NASA Astrophysics Data System (ADS)

Radon is a noble gas naturally occurring in the atmosphere with its progeny. Such progeny can be divided into short- and long-lived daughters. In the winter and spring of 2004 a field campaign at São José dos Campos (SJC, 23.1° S, 45.5° W, 600 m above sea level) in Brazil was conducted to determine the outdoor concentration of the short-lived 218Po, 214Pb, and 214Bi and the long-lived 210Po. It was adopted the methodology of measuring the integrated counts of alpha particles from atmospheric aerosols captured on a cellulose membrane filter sampled with outdoor surface air. Integrated counts for the short-lived daughters at 3 different minute-based periods of time were carried out immediately after the end of sampling and applied to a system of 3 equations, whose solution is the short-lived daughters' air concentrations. For 210Po the air concentration was directly released from alpha counts and volume of probed air. Radionuclides' uncertainties were calculated too. Average values of volume activity (25±21) (1 standard deviation, sd), (6±4), and (4±2) Bq m -3 for 218Po, 214Pb, and 214Bi, respectively, and (81±30) ?Bq m -3 for 210Po were found in the campaign. Atmospheric parameters of temperature, humidity, precipitation, pressure, and wind were taken during sampling. Correlation with temperature and humidity were obtained at 95% confidence level.

Silva, A. A.; Claro, L. H.


Processo de semeadura e o rendimento do milho na região dos Campos Gerais do Paraná  

Microsoft Academic Search

In the region of Campos Gerais, Paraná, Brazil, corn fields cover about one third of no-tillage summer cropland. Before introducing alternative forms of management, it is necessary to gather information on variables that influence crop yield. This paper was aimed at correlating corn yield with chemical and physical soil variables, and human variables, considering spatial variability in the region. The

Marcelo José; Colet I; Pedro Henrique; Weirich Neto II; Paulo William Garbuio



Ultrastructural, antigenic and physicochemical characterization of the Mojuí dos Campos (Bunyavirus) isolated from bat in the Brazilian Amazon region.  


The Mojuí dos Campos virus (MDCV) was isolated from the blood of an unidentified bat (Chiroptera) captured in Mojuí dos Campos, Santarém, State of Pará, Brazil, in 1975 and considerated to be antigenically different from other 102 arboviruses belonging to several antigenic groups isolated in the Amazon region or another region by complement fixation tests. The objective of this work was to develop a morphologic, an antigenic and physicochemical characterization of this virus. MDCV produces cytopathic effect in Vero cells, 24 h post-infection (p.i), and the degree of cellular destruction increases after a few hours. Negative staining electron microscopy of the supernatant of Vero cell cultures showed the presence of coated viral particles with a diameter of around 98 nm. Ultrathin sections of Vero cells, and brain and liver of newborn mice infected with MDCV showed an assembly of the viral particles into the Golgi vesicles. The synthesis kinetics of the proteins for MDCV were similar to that observed for other bunyaviruses, and viral proteins could be detected as early as 6 h p.i. Our results reinforce the original studies which had classified MDCV in the family Bunyaviridae, genus Bunyavirus as an ungrouped virus, and it may represent the prototype of a new serogroup. PMID:12048556

Wanzeller, Ana L M; Diniz, José A P; Gomes, Maria L C; Cruz, Ana C R; Soares, Manoel C P; de Souza, Wanderley; Travassos da Rosa, Amélia P A; Vasconcelos, Pedro F C




Microsoft Academic Search

RESUMEN Objetivos. Comparar la eficacia residual de dos insecticidas en el control vectorial del Triatoma infestans sobre tres tipos de vivienda en dos localidades de Arequipa, Perú. Material y métodos. Ensayo de campo, se utilizaron formulaciones de polvo mojado de deltametrina y lambdacihalotrina sobre diferentes sustratos (concreto, ladrillo y sillar) a dosis de 25 y 30 mg\\/m2 respectivamente. Se usó

Miriam Palomino; Pablo Villaseca; Fanny Cárdenas; Jenny Ancca; Maritza Pinto



Microsoft Academic Search

Este estudo atua com uma ferramenta de feedback quanto aos resultados obtidos com os programas educacionais em combate ao descarte incorreto de embalagens vazias no município de Campos Gerais no Sul do Estado de Minas Gerais. Os objetivos são mensurar a eficiência dos -programas educativos implementados por empresas e órgãos governamentais como forma de prevenção ao impacto ambiental causado pelo

Jairo Gustavo De Lima; Marcelo Marcio Romaniello; Cristhiane Oliveira Da Graca Amancio




Microsoft Academic Search

Resumo No sul do Brasil vegetação campestre e florestal interpenetram-se sob condições climáticas que seriam típicas de predomínio florestal. Evidências paleoecológicas indicam que as florestas no sul iniciaram sua expansão sobre os Campos a partir de alterações climáticas ocorridas há cerca de 4000 anos antes do presente, um processo que, parece, tende a continuar. A conservação dos Campos tem sido

Valério De Patta Pillar


Occurrence of Cryptosporidium andersoni in Brazilian cattle  

Technology Transfer Automated Retrieval System (TEKTRAN)

Feces were collected from 68 cattle, 1 to 12 mo of age, on 12 farms in the municipality of Campos dos Goytacazes, Rio de Janeiro, Brazil, and examined for the presence of Cryptosporidium sp. All samples were subjected to molecular analysis by polymerase chain reaction (nested PCR) of the 18S rRNA. F...


Multi-locus DNA sequencing of Toxoplasma gondii isolated from Brazilian pigs identifies genetically divergent strains  

Technology Transfer Automated Retrieval System (TEKTRAN)

Five Toxoplasma gondii isolates (TgPgBr1-5) were isolated from hearts and brains of pigs freshly purchased at the market of Campos dos Goytacazes, Northern Rio de Janeiro State, Brazil. Four of the five isolates were highly pathogenic in mice. Four genotypes were identified. Multi-locus DNA sequenci...


DOS basics  

SciTech Connect

DOS is an acronym for Disk Operating System. It is actually a set of programs that allows you to control your personal computer. DOS offers the capabilities to create and manage files; organize and maintain information placed on disks; use application programs such as WordPerfect, Lotus 123, Excel, Windows, etc. In addition, DOS provides the basic utilities needed to copy files from one area to another, delete files and list files. The latest version of DOS also offers more advanced features that include hard disk compression and memory management. Basic DOS commands are discussed.

O`Connor, P.



The Campo Imperatore Near Earth Object Survey  

Microsoft Academic Search

The CINEOS program (Campo Imperatore Near Earth Object Survey), started in 2001, is dedicated to the discovery and follow-up of Near Earth Objects, namely asteroids and comets which periodically approach or intersect the Earth's orbit. In particular CINEOS is addressed to the discovery of Atens and Inner Earth Objects (IEOs) by extending survey coverage at small solar elongations, and to

A. Boattini; A. Di Paola; F. Bernardi; F. De Luise; V. Casula; A. Giunta; D. Perna; N. Napoleone; A. Carusi; E. Dotto; G. B. Valsecchi



76 FR 6153 - Supplemental Environmental Impact Statement for the Proposed Campo Regional Landfill Project on...  

Federal Register 2010, 2011, 2012, 2013

...Supplemental Environmental Impact Statement for the Proposed Campo Regional...cooperation with the Campo Band of Mission Indians (Campo Band), Campo...Supplemental Environmental Impact Statement (SEIS) for the BIA Federal...SEIS because the Campo Band of Mission Indians, by Tribal...



75 FR 8986 - Draft Supplemental Environmental Impact Statement for the Proposed Campo Regional Landfill...  

Federal Register 2010, 2011, 2012, 2013

...Supplemental Environmental Impact Statement for the Proposed Campo Regional...Supplemental Environmental Impact Statement (DSEIS) for an amended lease...Final Environmental Impact Statement (FEIS) for the proposed...cooperation with the Campo Band of Mission Indians (Campo Band),...



"Ask Argonne" - Edwin Campos, Research Meteorologist, Part 2  


Argonne's Edwin Campos has for the last two decades studied weather, and in particular, clouds. His research can help make solar power a more viable option for the U.S. and the world. In this video, Dr. Campos answers questions that were submitted by the public in response to his introductory video: We will be posting a new "Ask Argonne" video every other month, on various topics. Keep an eye out for your next opportunity to submit a question and see if it gets answered - and if you get a shout-out on camera.


‘Little Ice Age’ glacier fluctuations, Gran Campo Nevado, southernmost Chile  

Microsoft Academic Search

Moraine systems of Glaciar Lengua (unofficial name) and neighbouring glaciers of Gran Campo Nevado (53°S) in the southernmost Andes were mapped and dated by dendrochronological means. They were formed around AD 1628, 1872\\/1875, 1886, 1902, 1912 and 1941 with the advance in the 1870s being calendar dated. Recessional moraines within each moraine system correspond to brief standstills or minor readvances.

Johannes Koch; Rolf Kilian



Dynamics of Stratospheric Winds in the Southern Hemisphere Dinamica DOS Ventos Estratosfericos No Hemisferio Sul.  

National Technical Information Service (NTIS)

High altitude balloons were used to study the characteristics of stratospheric wind dynamics in the southern hemisphere. Emphasis was placed on data obtained for the areas of San Jose dos Campos, and San Paulo, Brazil for the months of October 1976 to Feb...

I. M. Martin N. A. Buivan



Pygmy Rice Rat as Potential Host of Castelo dos Sonhos Hantavirus  

PubMed Central

To study the dynamics of wild rodent populations and identify potential hosts for hantavirus, we conducted an eco-epidemiologic study in Campo Novo do Parecis, Mato Grosso State, Brazil. We detected and genetically characterized Castelo dos Sonhos virus found in a species of pygmy rice rat (Oligoryzomys utiaritensis).

Travassos da Rosa, Elizabeth S.; Medeiros, Daniele B. A.; Nunes, Marcio R.T.; Simith, Darlene B.; Pereira, Armando de Souza; Elkhoury, Mauro R.; Lavocat, Marilia; Marques, Aparecido A.R.; Via, Alba Valeria; D'Andrea, Paulo; Bonvicino, Cibele R.; Lemos, Elba Regina S.



Fotometría CCD en el campo del cúmulo abierto Ruprecht 58  

NASA Astrophysics Data System (ADS)

La región de Vela-Puppis contiene varios cúmulos cuyo estudio puede brindarnos información acerca de la cinemática y el estado evolutivo de la población estelar en las zonas externas del disco galáctico. A través de observaciones CCD en los filtros UBV en el campo del cúmulo abierto Ruprecht 58 (?2000= 8h 14m 41s, ?2000=-31o 57'), se han determinado por primera vez los parámetros fundamentales de este cúmulo tales como distancia, enrojecimiento y edad. Se analiza también la estructura de su secuencia principal y la presencia de gigantes y binarias.

Giorgi, E. E.; Vázquez, R. A.; Seggewiss, W.; Ostrov, P.; Solivella, G. R.


MAG waves in magnetic and rotating stars (Campos, 2011)  

NASA Astrophysics Data System (ADS)

The expression for the energy flux of magnetoacoustic-gravity-inertial (MAGI) waves derived in the Part I (Campos, 2011MNRAS.410..717C) of the present paper is applied to the luminosity of stars, leading to more than 60 relations between observable stellar quantities. Three of these relations are compared with empirical data, viz. concerning stellar luminosity or brightness compared with (i) magnetic field strength for strong magnetic stars, (ii) rotation period for fast rotating stars and (iii) mass and temperature for stars in general. (4 data files).

Campos, L. M. B. C.



Estagio atual de conhecimento da geoquimica organica das bacias de Campos e Espirito Santo. (Actual stage of organic geochemical knowledge from Campos and Espirito Santo basins, Brazil).  

National Technical Information Service (NTIS)

Campos and Espirito Santo basins display several similar geochemical aspects. The microbial and other degradation processes caused changes in the composition of the oils in the reservoir rocks. The oils are biodegraded in different degrees, with the reser...

P. C. Gaglianone L. A. F. Trindade



Subsidence history and tectonic evolution of Campos basin, offshore Brazil  

SciTech Connect

The tectonic component of subsidence in the Campos basin reflects different stages of crustal reequilibration subsequent to the stretching that preceded the breakup of Pangea. Concomitant with rifting in the South Atlantic, Neocomian lacustrine rocks, with associated widespread mafic volcanism, were deposited on a vary rapidly subsiding crust. The proto-oceanic stage (Aptian) is marked by a sequence of evaporitic rocks whose originally greater sedimentary thickness is indicated by residual evaporitic layers with abundant salt flow features. An open marine environment begins with thick Albian/Cenomanian limestones that grade upward and basinward into shales. This section, with halokinetic features and listric detached faulting sloping out on salt, is characterized by an increased sedimentation rate. The marine Upper Cretaceous to Recent clastic section, associated with the more quiescent phase of thermal subsidence, is characterized by drastic changes in sedimentation rate. Stratigraphic modeling of the sedimentary facies suggests a flexurally controlled loading mechanism (regional compensation) with a temporally and spatially variable rigidity. Locally, the subsidence in the rift-phase fault-bounded blocks shows no correspondence with the overall thermal subsidence, implying that the crust was not effectively thinned by simple, vertically balanced stretching. Deep reflection seismic sections show a general correspondence between sedimentary isopachs and Moho topography, which broadly compensates for the observed subsidence. However, even the Moho is locally affected by crustal-scale master faults that apparently are also controlling the movement mechanisms during the rift-phase faulting.

Mohriak, W.U.; Karner, G.D.; Dewey, J.F.



"Ask Argonne" - Edwin Campos, Research Meteorologist, Part 1  


Dr. Edwin Campos is a Research Meteorologist at Argonne National Laboratory. For the last two decades, he has studied weather, and in particular, clouds. Clouds are one of the most uncertain variables in climate predictions and are often related to transportation hazards. Clouds can also impact world-class sporting events like the Olympics. You may have questions about the role of clouds, or weather, on our daily lives. How is severe weather monitored for airports? What is the impact of clouds and wind on the generation of electricity? One of the projects Edwin is working on is short-term forecasting as it relates to solar electricity. For this, Edwin's team is partnering with industry and academia to study new ways of forecasting clouds, delivering technologies that will allow the incorporation of more solar power into the electric grid. Post a question for Edwin as a comment below, and it might get answered in the follow-up video we'll post in the next few weeks.


``Campo del Cielo'' Meteorites: Astronomical Heritage and Cultural Colonialism  

NASA Astrophysics Data System (ADS)

In the province of Chaco, Argentina, there is a very unique dispersion of metallic meteorites called ``Campo del Cielo''. One of the meteoric fragments of this dispersion, the meteorite called ``El Chaco'', consisting of 37 tons, is the second heaviest in the world. These meteorites are of great importance to the worldview of the Moqoit, aboriginal people that inhabit this region. For the local Creole population the meteorites are also relevant, that's why they have being cited in numerous documents and reports since the colonial period. During the first months of 2012, two Argentine artists and the Artistic Director of the German contemporary art exhibition called dOCUMENTA (13) tried to move ``El Chaco'' meteorite to Germany in order to exhibit it as an artistic object. Due to the fact that moving the meteorite could have a negative impact according to the Moqoit cosmology and that they were not able to participate in the decision they begun a manifestation against the movement of El Chaco. The opposition made by aboriginal communities and experts in cultural astronomy was able to stop the transfer. The whole process and its impact on the local community have promoted a deep discussion about art, science and cultural colonialism. In this paper we aim to address this debate and its consequences. This will allow us to think about contemporary forms of colonialism that are hidden in many scientific and artistic projects. Furthermore, we aim to debate about the most effective ways of protecting astronomical heritage in the Third World.

López, Alejandro Martín; Altman, Agustina



Genetic data on 15 STR autosomal loci for a sample population of the Northern Region of the State of Rio de Janeiro, Brazil  

Microsoft Academic Search

Allele frequencies data, paternity and forensic parameters for 15 autosomal short tandem repeat (STR) autosomal markers (D8S1179, D21S11, D7S820, CSF1PO, D5S818, D3S1358, TH01, D13S317, D16S539, D2S1338, TPOX, D19S433, vWA, D18S51, FGA) were determined for a sample of 494 unrelated individuals undergoing kinship analysis and molecular cytogenetic testing from the population of the city of Campos dos Goytacazes, Northern State of

Eduardo Leal Rodrigues; Filipe Brum Machado; Marilia Mothé Arruda; Rodrigo Soares de Moura-Neto; Enrique Medina-Acosta



Petroleum geology of Campos Basin, Brazil: A successful case history of deep water exploration  

Microsoft Academic Search

Campos Basin, the most prolific Brazilian basin, produces almost 400,000 bbl of oil per day and contains 70% of the national reserves. The basin is located on the southeastern coast of Brazil, covering a prospectable area of 100,000 km² Campos is a passive continental margin basin originated by the breakup of Pangea and the rifting of the South American and

M. R. Franke; H. A. F. Lugon; W. L. Beraldo




Microsoft Academic Search

RESUMO - Avaliou-se a comunidade microbiana pela determinação do número, biomassa e atividade de microrganismos heterotróficos em amostras de solos sob mata ciliar e campo cerrado adjacentes, localizados na microrregião Campos da Mantiqueira (MG), no reservatório da hidrelétrica Itutinga\\/Cam argos, em Minas Gerais. As amostras de solos foram coletadas na profundidade de 0-20 cm, no período entre abril e maio



Basalt magmatism along the passive continental margin of SE Brazil (Campos basin)  

NASA Astrophysics Data System (ADS)

The SE-Brazil passive continental margin is characterized by tholeiitic magmatism that is particularly widespread in the marginal Campos basin, facing the inland flood basalts of the adjacent Paranà basin. Campos magmatism is represented by Early Cretaceous (EC; 134 122 Ma) flood basalts and minor Upper Cretaceous-Early Tertiary basalt flows and intrusives, which were emplaced in a basin with attenuated crustal thickness (20 km). Petrography, mineral chemistry, wholerock geochemistry and Sr-Nd isotope composition emphasize that the EC-Campos basalts have suffered extensive seawater interaction which caused enrichment in MgO, FeO total, K2O, Rb and Ba, and depletion in SiO2 and CaO, while Zr, Nb, Y and REE remained virtually constant in samples with loss-on-ignition values less than 4 wt%. In general, Campos basalts have bulkrock chemistry similar to those of the inland Parana tholeiites (140 130 Ma) with relatively low concentrations of incompatible elements and TiO2 (<2 wt%). Batch-melting calculations suggest that Campos basalt genesis requires a garnet-peridotite source and variable degree of melting (9 25%) in order to explain the rare-earth-element (REE) patterns with chondrite normalised La/Yb(N) ratio ranging from 0.9 1.0 to 4.4 7.1. The Sr-Nd isotopic data for the slightly altered Campos basalts, of both Early Cretaceous and Upper Cretaceous-Early Tertiary age, plot close to bulk earth, or in the enriched quadrant of the mantle array. Inter-element (La, Zr, Nb, Ba) ratios preclude for the Campos (and Paranà) basalt genesis any significant participation of N-type (Zr/Nb>16) MORB (mid-ocean-ridge basalt) mantle in simple binary mixing models. On the whole, the Early Cretaceous Campos basalts appear as an easterly, younger extension of the northern Paranà volcanism and probably erupted during early stages of the major riftingprocesses which caused continental thinning. It is notable that in the Campos marginal basin both the basalt magmatism contemporaneous with the continental break-up, as well as that which occurred after the S. America-Africa separation, appears substantially related to subcontinental lithosphere and a Dupal-like OIB (ocean-island basalt) (e.g. Tristan da Cunha) source components.

Mizusaki, A. M. P.; Petrini, R.; Bellieni, P.; Comin-Chiaramonti, P.; Dias, J.; de Min, A.; Piccirillo, E. M.




Microsoft Academic Search

The aim of this work is to develop a GIS application to give support to planning of ecotouristic trails in the State Park of Campos do J ordão (PECJ). The approach that was adopted to modelling the aplication involved a process of four stages: Application Domain Analysis, Conceptual Model, Logical Model and Physical Model. At the Conceptual level was adopted

Mônica M. S. Decanini



El dolor como terapia. La médula común de los campos de concentración nazis y franquistas  

Microsoft Academic Search

Los campos de concentración franquistas y los nazis evidencian un cuerpo común. En ambos se desarrollaba una terapia para los internos que tenía al cuerpo como vehículo de aprendizaje. El tratamiento político prescribía penalidades físicas — la suciedad, el hambre, la sed— y morales que debían conducir a los prisioneros a comprender la finalidad buscada por el Estado totalitario alemán

Mirta Núñez Díaz-Balart




Microsoft Academic Search

El salvaje metropolitano no es sólo un libro de antropología sino además un tratado hermenéutico sobre la filosofía del método que ayuda a los lectores más allá de su disciplina de base a hacer uso de la etnografía en sus trabajos de campo. En base a lo expuesto, Rosana Guber comienza su capítulo introductorio con un análisis sobre las limitaciones

Maximiliano Korstanje



Hydrology, morphology and sedimentology of the Campos continental margin, offshore Brazil  

Microsoft Academic Search

Slope sand deposits have accumulated from at least the Neogene to the Present on the southeastern Brazilian continental margin (Campos Basin area). This region shows sand accumulations concentrated on the upper portion and on the base of the continental slope with a middle to lower slope bypass zone. A synthesis of preliminary results, supported by recent cores, high-resolution geophysical surveys,

A. R. Viana; J. C. Faugeres; R. O. Kowsmann; J. A. M. Lima; L. F. G. Caddah; J. G. Rizzo



Turbidites associated with bentonites in the Upper Cretaceous of the Campos Basin, offshore Brazil  

Microsoft Academic Search

More than fifteen bentonite beds have been identified in the Santonian\\/Campanian section of the Campos Basin, offshore Brazil. These range in thickness up to 1 m and are mainly composed of interstratified illite\\/smectite. Relict textural features can still be observed, identifying them as former volcanic ash layers. They also display gradational or sharp contacts with the associated lithologies. In the

Luiz Fernando G. Caddah; Daisy B. Alves; Ana Maria P. Mizusaki




Microsoft Academic Search

This study was performed to identify the seabird species occurring on Ilhéu de Vila Franca do Campo (IVFC) off São Miguel island, Azores, giving a special emphasis on the description of their ecology and threats. Flush counts, ground searches and raft counts were conducted and two types of natural habitats were identified. The results confirmed the nesting of two endangered

Pedro Rodrigues; Joana Micael; Roshan K. Rodrigo; Regina T. Cunha


Descrição morfológica e fenologia floral em alfavaca do campo (Ocimum campechianum Mill.)  

Microsoft Academic Search

RESUMO Ocimum campechianum Mill, conhecida no nordeste brasileiro como alfavaca do campo, é uma importante fonte de óleos essenciais presentes nas folhas, inflorescências e sementes da planta adulta, cujas propriedades medicinais, aromáticas e condimentares são reconhecidas e empregadas na medicina natural e culinária regional. O objetivo deste trabalho foi realizar o estudo da morfologia floral e fenologia da floração em

Anderson Brito da Silva; Marcela Fonseca Souza; Alisson Harley; Brito da Silva



Microsoft Academic Search

Palabras clave: campos de golf, España, turismo. SUMMARY Golf has been one of the fastest-growing sports in Spain over the last two decades: the number of courses has tripled and the number of registered golfers has increased almost 18 times. The courses are distributed all over the country although the highest concentration continues to be found near the Mediterranean coast

Francisco Feo Parrondo



¡Dos es mejor que uno!  

Center for Food Safety and Applied Nutrition (CFSAN)

Text Version... 4 Page 5. Termómetros para refrigerador ¡Un elemento fundamental para la seguridad alimentaria! ... 5 0º F ! ¡Dos es mejor que uno! ... More results from


Stochastic modelling of turbidite reservoirs constrained by seismic information (Campos basin, offshore Brazil)  

Microsoft Academic Search

A new methodology of reservoir probabilistic modelling was applied at an oil field scale in the brazilian continental margin. The Namorado field, located in the Campos basin in the passive margin of eastern Brazil, is a mature oil field with 60 wells and 1326 km of 3D seismic lines. The reservoir (Albian\\/Cenomanian), deposited in an overall-transgressive context, produces from turbidite

J. Souza; G. Olinto; R. Eschard



Seismic stratigraphy and subsidence analysis of the southern Brazilian margin (Campos, Santos and Pelotas basins)  

Microsoft Academic Search

The Campos, Santos and Pelotas basins have been investigated in terms of 2D seismo-stratigraphy and subsidence. The processes controlling accommodation space (e.g. eustacy, subsidence, sediment input) and the evolution of the three basins are discussed. Depositional seismic sequences in the syn-rift Barremian to the drift Holocene basin fill have been identified. In addition, the subsidence\\/uplift history has been numerically modeled

Jorham Contreras; Rainer Zühlke; Scott Bowman; Thilo Bechstädt



Ricerche sull’azione del campo magnetico terrestre sopra i corpuscoli della radiazione penetrante  

Microsoft Academic Search

\\u000a Sunto  Se la radiazione penetrante giunge al limite dell’atmosfera come una radiazione corpuscolare avente un’energia di alcuni miliardi\\u000a di volt-elettrone, il campo magnetico terrestre dovrebbe dar luogo ad una forte dissimetria nella sua distribuzione di intensità\\u000a rispetto al piano del meridiano magnetico. L’esperiema eseguita per mettere in evidenza questa dissimetria ha dato esito negativo.

Bruno Rossi



The Study of Natural Radiation Distribution in Soil of Sao Bernardo do Campo  

SciTech Connect

We have studied the distribution of natural radioactivity in the soil of five sites of the city Sao Bernardo do Campo, Sao Paulo, Brazil. The main contribution of the radiation dose is due to the isotope {sup 40}K, with smaller contributions from the elements of the series of {sup 238}U and {sup 232}Th. The results indicate the dose in all of the studied areas is around the average international dose due to external exposure to gamma rays (0.48 mSv/yr) proceeding from natural terrestrial elements.

Matsumoto, M. M.; Silveira, M. A. G. [Centro Universitrio da FEI, Sao Bernardo do Campo, Sao Paulo (Brazil); Medina, N. H.; Umisedo, N. K. [Instituto de Fisica da Universidade de Sao Paulo, Sao Paulo (Brazil)



Petroleum geology of Campos Basin, Brazil: A successful case history of deep water exploration  

SciTech Connect

Campos Basin, the most prolific Brazilian basin, produces almost 400,000 bbl of oil per day and contains 70% of the national reserves. The basin is located on the southeastern coast of Brazil, covering a prospectable area of 100,000 km{sup 2} Campos is a passive continental margin basin originated by the breakup of Pangea and the rifting of the South American and African plates in the Early Cretaceous. The basin's sedimentary section encompasses three megasequences: nonmarine, transitional, and marine, ranging in age from Neocomian to Holocene. Hydrocarbon generation is related to nonmarine organic-rich shales and marls, and hydrocarbon entrapment assumes ascendent migration along fault planes and through salt gaps toward reservoirs ranging in age from Neocomian to Tertiary (mainly turbiditic sandstones). The first onshore stratigraphic well was drilled based on gravity surveys in 1958. The acquisition of new geophysical data, mainly seismic reflection data, followed after 1968. The first offshore well was drilled in 1971, and in 1974, the first oil field, Garopua, was discovered. Giant hydrocarbon accumulations have been discovered in water depths ranging from 400 to 1,800 m since 1984. As of mid-1989, 35 offshore oil fields have been discovered, 760 million bbl of oil, and 490 bcf of gas have been produced. The basin oil and equivalent gas reserves are estimated in 6.0 billion bbl, 60% of which is located in the deep-water giant oil fields.

Franke, M.R.; Lugon, H.A.F.; Beraldo, W.L. (Petrobras, Rio de Janeiro (Brazil))



Formation and exhumation of Permian granulites: case study from the polyphase Campo Unit (Central Alps)  

NASA Astrophysics Data System (ADS)

Studies on Wilson cycles usually focused on the formation, destruction and final integration of oceanic domains in orogens whereas the subsequent dismantling of mountain ranges and its importance for rift-systems is yet less understood. How orogenic inheritance influences the crustal thinning during rifting and the final architecture of rifted margins remains poorly depicted. To answer this question, we initiated a multidisciplinary research project coupling structural geology, igneous and metamorphic petrology and geochronology in selected areas of the Austroalpine nappes in SE-Switzerland and N-Italy, where remnants of a Jurassic continental margin have been previously described. We chose to focus on the Campo unit, due to a complete record of events from at least the Variscan orogeny to middle-Jurassic rifting, and a low-grade Alpine metamorphism. The Campo basement is composed of metamorphic rocks (metasediments and metabasites) of unknown age (probably Variscan), equilibrated in amphibolite-facies conditions. A gabbroic plutonic complex (the Sondalo gabbro), composed of gabbro-norites, quartz-diorites, olivine-gabbros was set in place in late-Carboniferous and early-Permian times between 280 and 300 Ma. This intrusion produced a metamorphic contact aureole. In its vicinity, surrounding crust was melted (as indicated by muscovite decomposition, abundant garnet and sillimanite crystallization). As consequence, granulitic rocks can be found in intra-plutonic positions. Interactions between mafic liquids and metapelites-derived liquids lead to complex magmatic patterns, including magma mingling and hybridization. The connection of acid melts produced by the partial melting of the crust causes the intrusion of granitoids (e.g. Val Ferrata granite). These structures are cross-cut by the Eita shear zone, which exhumed the Campo unit during the Jurassic rifting phase near to the seafloor. This exhumation is responsible for 40Ar/39Ar ages on muscovite and biotite, which are ranging between 180 and 200 Ma. Studying the Permian intrusions and their relation to the host rocks enables to establish a snapshot of the crust in Permian time and consequently to determine the pre-rift crustal structure and conditions. In order to get better constrains on P-T-t conditions before and during the rifting, we will use thermodynamic modeling and 40Ar/39Ar dating. This study will enable us to characterize more precisely the crustal evolution between the collapse of the Variscan orogen and the Mesozoic rifting, which is a prerequisite to understand and model the evolution of hyper-extended rifted margins.

Petri, B.; Mohn, G.; Manatschal, G.; Wijbrans, J.; Schulmann, K.



DOS: a scalable optical switch for datacenters  

Microsoft Academic Search

This paper discusses the architecture and performance studies of Datacenter Optical Switch (DOS) designed for scalable and high-throughput interconnections within a data center. DOS exploits wavelength routing characteristics of a switch fabric based on an Arrayed Waveguide Grating Router (AWGR) that allows contention resolution in the wavelength domain. Simulation results indicate that DOS exhibits lower latency and higher throughput even

Xiaohui Ye; Yawei Yin; S. J. Ben Yoo; Paul Vincent Mejia; Roberto Proietti; Venkatesh Akella



LP-DOS magnifies the PC screen  

Microsoft Academic Search

As a visually impaired computer user the author needed a simple solution that would allow him and others to see and use the vast range of PC text and graphics programs. He created LP-DOS (Large Print DOS). LP-DOS is a software package that can run on any PC or laptop. It can be used anywhere: business, home, or school. Once

D. Simkovitz



[Water fluoridation analysis of Campo Grande (MS) urban zone public supply].  


The objective of this study was to analyze the fluoride concentration on the water that flows of the tap in the urban area of the city of Campo Grande (MS). For the fluoride concentration analysis, it was collected water samples of 21 schools placed in the 7 sub districts of the city, in 3 different opportunities, was made by the specific electrode method (using an Orion 9609 BN combined fluoride measuring electrode, coupled with an Orion EA-940 digital potentiometer). The results showed that 63.5% of the water samples presented acceptable fluoride levels (between 0.60 and 0.80 ppm) and 36.5%, unacceptable levels. In relation to the condition of the collect places, 76.2% were considered appropriate and 23.8% were inappropriate. PMID:19721966

Bellé, Bruno Luiz Lessa; de Lacerda, Valéria Rodrigues; De Carli, Alessandro Diogo; Azfalon, Edílson José; Pereira, Paulo Zárate


Discovering research value in the Campo del Cielo, Argentina, meteorite craters  

NASA Astrophysics Data System (ADS)

The Campo del Cielo meteorite crater field in Argentina contains at least 20 small meteorite craters, but a recent review of the field data and a remote sensing study suggest that there may be more. The fall occurred ˜4000 years ago into a uniform loessy soil, and the craters are well enough preserved so that some of their parameters of impact can be determined after excavation. The craters were formed by multi-ton fragments of a type IA meteoroid with abundant silicate inclusions. Relative to the horizontal, the angle of infall was ˜9°. Reflecting the low angle of infall, the crater field is elongated with apparent dimensions of 3 × 18.5 km. The largest craters are near the center of this ellipse. This suggests that when the parent meteoroid broke apart, the resulting fragments diverged from the original trajectory in inverse relation to their masses and did not undergo size sorting due to atmospheric deceleration. The major axis of the crater field as we know it extends along N63°E, but the azimuths of infall determined by excavation of Craters 9 and 10 are N83.5°E and N75.5°E, respectively. This suggests that the major axis of the crater field is not yet well determined. The three or four largest craters appear to have been formed by impacts that disrupted the projectiles, scattering fragments around the outsides of the craters and leaving no large masses within them; these are relatively symmetrical in shape. Other craters are elongated features with multi-ton masses preserved within them and no fragmentation products outside. There are two ways in which field research on the Campo del Cielo crater field is found to be useful. (1) Studies exist that have been used to interpret impact craters on planetary surfaces other than the Earth. This occurrence of a swarm of projectiles impacting at known angles and similar velocities into a uniform target material provides an excellent field site at which to test the applicability of those studies. (2) Individual craters at Campo del Cielo can yield the masses of the projectiles that formed them and their velocities, angles and azimuths of impact. From these data, there is a possibility to estimate parameters for the parent meteoroid at entry and, thus, learn enough about its orbit to judge whether or not it was compatible with an asteroidal origin. Preliminary indications are that it was. Campo del Cielo is a IA iron meteorite and Sikhote-Alin, an observed fall, is a IIB iron meteorite in Wasson's classification. The Sterlitamak iron, also an observed fall, is a medium octahedrite in the Prior-Hey classification. It would be interesting to compare their orbital parameters.

Cassidy, William A.; Renard, Marc L.



Metallo-?-lactamase and genetic diversity of Pseudomonas aeruginosa in intensive care units in Campo Grande, MS, Brazil  

Microsoft Academic Search

Infection by Pseudomonas aeruginosa has spread worldwide, with limited options for treatment. The purpose of this study was to investigate metallo-?-lactamase-producing P. aeruginosa strains and compare their genetic profile using samples collected from patients in intensive care units. Forty P. aeruginosa strains were isolated from two public hospitals in Campo Grande, Mato Grosso do Sul State, from January 1st, 2007

Ana Claudia Souza Rodrigues; Marilene Rodrigues Chang; Gabriela Dorn Nóbrega; Mayara Souza Rodrigues; Nadia Cristina Pereira Carvalho; Beatriz Garcia Gomes; Dênio Lopes de Almeida; Karyne Rangel Carvalho; Marise Dutra Asensi



Style and pattern of salt diapirs due to thin-skinned gravitational gliding, Campos and Santos basins, offshore Brazil  

Microsoft Academic Search

Portions of seismic lines and a structure-contour map illustrate the patterns and shapes of salt diapirs and related structures in the Campos and Santos areas, off the Atlantic coast of Brazil. We interpret the structures both kinematically and mechanically, drawing on our experience with similar salt structures worldwide, with the results of recent physical modelling and with geometric restorations in

S. Demercian; P. Szatmari; P. R. Cobbold



Multi-locus DNA sequencing of Toxoplasma gondii isolated from Brazilian pigs identifies genetically divergent strains  

PubMed Central

Five Toxoplasma gondii isolates (TgPgBr1–5) were isolated from hearts and brains of pigs freshly purchased at the market of Campos dos Goytacazes, Northern Rio de Janeiro State, Brazil. Four of the five isolates were highly pathogenic in mice. Four genotypes were identified. Multi-locus PCR-DNA sequencing showed that each strain possessed a unique combination of archetypal and novel alleles not previously described in South America. The data suggest that different strains circulate in pigs destined for human consumption from those previously isolated from cats and chickens in Brazil. Further, multi-locus PCR-RFLP analyses failed to accurately genotype the Brazilian isolates due to the high presence of atypical alleles. This is the first report of multi-locus DNA sequencing of T. gondii isolates in pigs from Brazil.

Frazao-Teixeira, E.; Sundar, N.; Dubey, J. P.; Grigg, M. E.; de Oliveira, F. C. R.



Pollination of Cambessedesia wurdackii in Brazilian campo rupestre vegetation, with special reference to crepuscular bees.  


Cambessedesia wurdackii Martins (Myrtales: Melastomataceae) is presumably endemic to the Chapada Diamantina, Bahia State, Brazil. A majority of the species of this family are pollinated by diurnal bees that buzz the floral anthers to collect pollen. The present work examined the interactions between C. wurdackii and visiting bees, focusing on temporal, morphological, and behavioral features, especially in regards to the crepuscular bees Megalopta sodalis (Vachal) (Hymenoptera: Halictidae) and Ptiloglossa off. dubia Moure (Hymenoptera: Colletidae). The study was undertaken in an area of campo rupestre montane savanna vegetation located in the Chapada Diamantina Mountains of Bahia State, Brazil, between August/2007 and July/2008. Flowering in C. wurdackii occurred from April through July, with a peak in May. A total of 592 visits by diurnal and crepuscular bees to the flowers of C. wurdackii were recorded, with a majority of the visits made by M. sodalis and P. dubia (92%) near sunrise and sunset. The anthers of C. wurdackii are arranged in two tiers, which favors cross pollination. The morphological, temporal and behavioral characteristics of M. sodalis and P. dubia indicated that they were potential pollinators of C. wurdackii, in spite of the fact that the colorful and showy flowers of this species are more typical of a diurnal melittophilous pollination syndrome. PMID:22208813

Franco, Emanuella Lopes; Gimenes, Miriam



Lagoa Feia Formation (Lower Cretaceous), Campos basin, offshore Brazil - Rift-Valley-Stage Lacustrine carbonate reservoirs  

SciTech Connect

The Lagoa Feia Formation, buried in excess of 3000 m, is the exploration frontier of the prolific Campos basin. It contains the source beds of all the basin's oil in addition to having its own potential carbonate reservoirs. The faulted margins of the basin fed a system of alluvial fans, sand flats, and mud flats. Alternating dry and rainy period regulated the size and nature of contemporaneous basinal alkaline lakes. Dry periods corresponded to contracted playa lakes with ostracod carbonates and euxinic shales; rainy periods corresponded to expanded pluvial lakes with pelecypod banks. Subaqueous intrusions of basaltic magma generated hyaloclastites with kerolitic ooids and hyalotuffs. Petrographic analysis reveals 5 diagenetic stages: (1) syndepositional alteration of lithoclasts to trioctahedral smectites; (2) early dolomitization, early silicification, and cementation by bladed-rim calcite and zeolites; (3) freshwater-vadose dissolution of bioclasts and lithoclasts, freshwater-phreatic sparite cementation, and neomorphism; (4) mixed saline-freshwater silicification; and (5) burial with compaction, late dolomitization, and partial conversion of smectites to illite. Pelecypod limestones with primary interparticle, secondary intraparticle, moldic, and moldic-enlarged porosities are the potential reservoirs. Ideal conditions for porosity generation and preservation were subaerial exposure followed by rapid lake expansion and burial.

Bertani, R.; Petrobras, T.; Carozzi, A.V.



Pollination of Cambessedesia wurdackii in Brazilian Campo Rupestre Vegetation, with Special Reference to Crepuscular Bees  

PubMed Central

Cambessedesia wurdackii Martins (Myrtales: Melastomataceae) is presumably endemic to the Chapada Diamantina, Bahia State, Brazil. A majority of the species of this family are pollinated by diurnal bees that buzz the floral anthers to collect pollen. The present work examined the interactions between C. wurdackii and visiting bees, focusing on temporal, morphological, and behavioral features, especially in regards to the crepuscular bees Megalopta sodalis (Vachal) (Hymenoptera: Halictidae) and Ptiloglossa off. dubia Moure (Hymenoptera: Colletidae). The study was undertaken in an area of campo rupestre montane savanna vegetation located in the Chapada Diamantina Mountains of Bahia State, Brazil, between August/2007 and July/2008. Flowering in C. wurdackii occurred from April through July, with a peak in May. A total of 592 visits by diurnal and crepuscular bees to the flowers of C. wurdackii were recorded, with a majority of the visits made by M. sodalis and P. dubia (92%) near sunrise and sunset. The anthers of C. wurdackii are arranged in two tiers, which favors cross pollination. The morphological, temporal and behavioral characteristics of M. sodalis and P. dubia indicated that they were potential pollinators of C. wurdackii, in spite of the fact that the colorful and showy flowers of this species are more typical of a diurnal melittophilous pollination syndrome.

Franco, Emanuella Lopes; Gimenes, Miriam



[Work-related accidents on oil drilling platforms in the Campos Basin, Rio de Janeiro, Brazil].  


The offshore oil industry is characterized by complex systems in relation to technology and organization of work. Working conditions are hazardous, resulting in accidents and even occasional full-scale catastrophes. This article is the result of a study on work-related accidents in the offshore platforms in the Campos Basin, Rio de Janeiro State. The primary objective was to provide technical back-up for both workers' representative organizations and public authorities. As a methodology, we attempt to go beyond the immediate causes of accidents and emphasize underlying causes related to organizational and managerial aspects. The sources were used in such a way as to permit classification in relation to the type of incident, technological system, operation, and immediate and underlying causes. The results show the aggravation of safety conditions and the immediate need for public authorities and the offshore oil industry in Brazil to change the methods used to investigate accidents in order to identify the main causes in the organizational and managerial structure of companies. PMID:11241934

Freitas, C M; Souza, C A; Machado, J M; Porto, M F


[Hospitalization for primary care-sensitive conditions in Campo Grande, Mato Grosso do Sul State, Brazil, 2000-2009].  


This study analyzed the correlation between evolution in coverage of the Family Health Strategy (FHS) and the hospital admissions rate for primary care-sensitive conditions (PCSC) in Campo Grande, Mato Grosso do Sul State, Brazil, from 2000 to 2009. This was an ecological study using data from the Hospital Information System (SIH), available from the Information System of the Brazilian Unified National Health System (DATASUS) and the Brazilian Institute of Geography and Statistics (IBGE). Statistical analysis used Pearson's linear correlation coefficient and its significance. Campo Grande showed an inverse correlation, following the trend for the country as a whole, with a reduction in such admissions. The analysis of categories of hospital admissions showed a direct correlation with pulmonary tuberculosis, angina pectoris, and conditions related to prenatal care and childbirth. The results suggest that increased coverage of the FHS has contributed to a reduction in hospitalization rates for PCSC. PMID:22641508

Campos, Amanda Zandonadi de; Theme-Filha, Mariza Miranda



Summary of water resources for the Campo, Cuyapaipe, La Posta, and Manzanita Indian Reservations and vicinity, San Diego County, California  

USGS Publications Warehouse

Since 1945, precipitation and runoff in California on the Campo, Cuyapaipe, La Posta, and Manzanita Indian Reservations and surrounding areas generally have been below normal, and ground-water levels are declining. Most of the water is of excellent quality. The analysis of water from one well on the Campo Reservation indicates a concentration of nitrate that exceeds the recommended limit established in 1972 by the U.S. Environmental Protection Agency. Most wells and springs in the study area yield water for domestic purposes. The yields range from less than 1 gallon per minute to 210 gallons per minute. Most of the water is produced from shallow aluvial-filled channels or from consolidated rocks that are deeply weathered locally or highly fractured. The well data show that insufficient water is available on the four reservations for large-scale irrigation. (Woodard-USGS)

Moyle, W. R.; Downing, D. J.



Distribution, population density, and status of sympatric cercopithecids in the Campo-Ma’an area, southwestern cameroon  

Microsoft Academic Search

A study on species composition, distribution, and population density of cercopithecids in the Campo-Ma’an area, Southwestern\\u000a Cameroon, was undertaken from December 1997 until August 2000. A total of 665.5 km of line transects was used for the census.\\u000a Thirteen diurnal primate species including five endangered species (Gorilla g. gorilla, Pan troglodytes, Mandrillus sphinx, Colobus satanas, Cercocebus torquatus) were recorded in




Style and pattern of salt diapirs due to thin-skinned gravitational gliding, Campos and Santos basins, offshore Brazil  

NASA Astrophysics Data System (ADS)

Portions of seismic lines and a structure-contour map illustrate the patterns and shapes of salt diapirs and related structures in the Campos and Santos areas, off the Atlantic coast of Brazil. We interpret the structures both kinematically and mechanically, drawing on our experience with similar salt structures worldwide, with the results of recent physical modelling and with geometric restorations in section and in plan. Salt diapirs and related structures have a variety of structural styles, distributed in domains and provinces. Near the coast, there is an upper domain, 100 200 km wide, with a suite of structures that we attribute to horizontal downdip extension: these are salt rollers, in the footwalls of listric normal growth faults; salt walls of triangular cross section, beneath intersecting conjugate normal faults; turtle anticlines; and salt welds. Downslope extension started in the Albian and has continued to the present day. In the Campos area, from simple line balancing, the accumulated downslope displacement is about 100 km. Seawards of this, there is a lower domain, 100 400 km wide, with a different suite of structures, that we attribute to downdip contraction: these are growth folds of various wavelengths, in sedimentary sequences of various thicknesses; asymmetric salt walls, emplaced above reverse faults; deep basins, wedged down between conjugate reverse faults; and salt tongues above thrusts. For Campos, we estimate the total downslope contraction, accumulated since the Albian, to be about 100 km. From the balance between extension and contraction, we infer that the thin-skinned salt tectonics are gravitationally driven and independent of any basement tectonics. The structure-contour map on the top of the salt shows that structural style is variable also along strike. Seismic sections along regional contours indicate differing amounts of strain. On this basis, we distinguish five provinces, separated by NW-SE-trending lines. For the Northern Campos province, we infer radially convergent gliding; for the Campos or Cabo Frio provinces, radially divergent gliding; and for Northern Santos, divergent gliding at a large scale. The pattern in Southern Santos is complicated by right-lateral wrenching against the southern edge of the salt.

Demercian, S.; Szatmari, P.; Cobbold, P. R.



Distribution, population density, and status of sympatric cercopithecids in the Campo-Ma'an area, Southwestern Cameroon.  


A study on species composition, distribution, and population density of cercopithecids in the Campo-Ma'an area, Southwestern Cameroon, was undertaken from December 1997 until August 2000. A total of 665.5 km of line transects was used for the census. Thirteen diurnal primate species including five endangered species (Gorilla g. gorilla, Pan troglodytes, Mandrillus sphinx, Colobus satanas, Cercocebus torquatus) were recorded in the Campo Forest, the greatest part of which is a logging concession. Cercopithecus nictitans (1.43 groups/km2), C. cephus (1.13 groups/km2), C. pogonias (0.81 groups/km2), and C. torquatus (0.51 groups/km2) occurred at medium frequencies compared to figures from other Central African study sites. Mandrill densities estimated (0.27 groups/km2) show that the area is very important for the conservation of this rare species. Guenon densities found inside areas with a high level of human activities did not differ significantly from densities estimated in areas with a lower level of human activities. C. torquatus densities were significantly higher in the areas with a low level of human disturbance and encounter rates with Lophocebus albigena also indicate a preference of less disturbed areas. Mangabeys are thus likely to be adversely affected by human activities in the area. In the Ma'an Forest, which has not been logged yet, ten species were confirmed. The population densities of two guenons (C. nictitans and C. cephus) were estimated to be twice as high in the unlogged forest area as compared to the logged forest of Campo. Other species are rarer in the Ma'an Forest than in the Campo Forest. Although mangabeys are adversely affected by human activities, the results still indicate that selective logging may be compatible with the conservation of cercopithecids, if a reduced damage logging concept and antipoaching measures are implemented. Increased hunting activities following logging operations will definitely have a negative longterm impact on primate populations in the Campo-Ma'an area if no further, more effective conservation measures will regulate wildlife use in future. PMID:12145397

Matthews, Adele; Matthews, Andreas



A estabilidade dos PAHS em função da energia da radiação interestelar nas faixas UV e raios-X  

NASA Astrophysics Data System (ADS)

A nebulosa CRL 618, uma proto-nebulosa planetária cuja nuvem molecular espessa envolve uma estrela B0, contém uma grande quantidade de C2H2 e CH4. Estas moléculas são consideradas os tijolos da criação de grandes moléculas carbonadas como os Hidrocarbonetos Policíclicos Aromáticos (PAHs). Esta nebulosa, por estar exposta a intensos campos de UV e Raios-X, é uma região de fotodissociação molecular que propicia a formação de novas moléculas, confirmada pela presença de C4H2 e C6H6 (Benzeno), que é a unidade básica dos PAHs. Atribui-se a esta família de moléculas orgânicas duas propriedades fundamentais, a resistência para sobreviver ao campo de radiação UV interestelar e a geração das bandas de emissão não identificadas (UIR) observadas no infravermelho. No entanto, alguns autores questionam a resistência dos PAHs ao campo de radiação UV interestelar. Empregando a técnica de Espectrometria de Massas por Tempo de Vôo, no modo de coincidência fotoelétron-fotoíon, estudamos a ionização e fragmentação das seguintes moléculas: Benzeno, Benzeno deuterado, Naftaleno, Antraceno e Fenantreno. Utilizamos uma fonte de Hélio monocromática em 21,21 eV (584,5 Å) e a radiação Síncroton do Laboratório Nacional de Luz Síncroton (LNLS) em diferentes energias nas proximidades da borda do C 1s ( 290 eV). Comprovamos a estabilidade dos PAHs sob ação de UV (21,21 eV), onde eles apresentam um baixo nível de fotodissociação, produzindo fragmentos ionizados com rendimento total na ordem de 5 por cento em relação ao íon molecular pai. Entretanto, em altas energias, na faixa de Raios-X, a quebra destas moléculas torna-se mais intensa, com a produção de muitos fragmentos. Como uma das rotas de fragmentação do Naftaleno é [(C10H8) = > (C6H6+) + (C4H2) + (e-)], e como temos as evidências observacionais da existência do C4H2 e C6H6 na nebulosa CRL 618, sugerimos que este ambiente também possui o Naftaleno.

Pinotti, R.; Costa, R. K.; Boechat-Roberty, H. M.; Lago, A.; Souza, G. B.



Ground-water in the Teresina-Campo Maior area, Piaui, Brazil  

USGS Publications Warehouse

The Teresina-Campo Maior area lies in a presently developing farming and grazing region near the margin of drought-prone northeast Brazil where irrigated farming offers the best potential for economic development. The area comprises 9,700 square kilometers largely of catinga-covered tabular uplands which are drained by the perennial Rio Parnatba. The climate is hot and humid most of the year but with distinct wet and dry seasons. Temperature extremes range from 20?C to 39?C and the annum rainfall averages 1,200 millimeters. The area's ground-water reservoir is contained chiefly in sandstone aquifers of six westward-dipping sedimentary rock formations, all part of the Maranhao sedimentary basin. The youngest of these formations, namely the Piaut (Pennsylvarian), Poti (Mississippian), Longa (Upper Devonian), and Cabecas (Middle Devoniar), contain the principal aquifers. Precipitation is the primary source of recharge to these aquifers and is more than sufficient to replenish current withdrawals from wells. Underlying the principal aquifers are the untapped Pimenteiras and Serra Grande Formations (both Lower Devonian) which in areas adjacent to the report area are moderately good to excellent water producers. These aquifers are recharged principally by lateral inflow from the east. Water also occurs in the alluvial deposits (Quaternary) underlying the flood plain of the Rio Parnatba but recurrent and uncontrolled flooding at present (1966) precludes their development. Of little economic importance, because they lie above the zone of saturation, are the thin erosional remnants of the Pastos Bons (Upper Triassic), Matuca, and Pedra de Fogo (both Permian) Formations. There are in the report area about 200 drilled wells most of which are pumped with power-driven engines. The wells range from 40 to 500 meters deep but most do not exceed 150 meters, and practically all are completed open hole. Yields range from 500 liters per day for 6-inch-diameter domestic wells to 240,000 liters per hour for 10-inch high-capacity municipal wells. Although there are many more dug wells than drilled wells, dug wells account for less than 1 percent of the current (1966) draft. The current annual withdrawal from the principal aquifers is approximately 5 million cubic meters of which almost half is used for municipal supply and the rest for rural household and irrigation uses. Additional water for public supply is available from aquifers now being pumped, and larger yields probably could be obtained from rural wells designed to take full advantage of the aquifer. Analyses of 28 samples show that the chemical quality of the water is well below the accepted limits of mineral concentration for most uses. Water from the Longa Formation averages 842 milligrams per liter in total dissolved solids and is more mineralized than that in the Piaul and Port Formations which contain water averaging less than 300 milligrams per liter. The water in the Piaui and Poti aquifers is the most suitable in the area for irrigation and has SAR values of C1-S1 and C2-S1. The quantities of water currently being used for irrigation are relatively small (600,000 cubic meters annually) but will increase substantially when intensive irrigation becomes a reality. Divisio de Hydrogeologia da Superintendancia do Desenvolvimento do Nordeste estimates that about 2,500 million cubic meters of water per year would be needed to irrigate about 250,000 hectares in the Teresina-Campo Maior area (about 25 percent of the total area). This goal, however, is not likely to be realized as the water requirement is five times the estimated natural recharge to the aquifers of the area. Most of the water-bearing formations in the report area have barely been tapped and can be developed a great deal more. In fact, the current annual withdrawal from the principal aquifers is less than 0.0025 percent of a conservative estimate of annual replenishment from rainfall. Additionally, only the

Rodis, Harry G.; Suszczynski, Edison F.



Diversity in bee (Hymenoptera: Apoidea) and social wasp (Hymenoptera: Vespidae, Polistinae) community in "campos rupestres", Bahia, Brazil.  


Hymenoptera such as bees and social wasps are regular floral visitors in "campos rupestres" vegetation. A community of bees and social wasps was studied during floral visitation in an area of "campos rupestres", at Chapada Diamantina, BA, Brazil, from September 2001 to April 2002. The community was described in relation to diversity, evenness, and dominance rank, considering the individuals abundance (H' = 2.14/ J' = 0.55) and biomass (H' = 2.34/ J' = 0.60). Thirty nine bee (588 individuals/ 15.742 g) and 11 social wasp species (52 individuals/ 2.156 g) were collected, being the first report of social wasps for the Brazilian "campos rupestres". The main species regarding number of individuals were Trigona spinipes (Fabricius), Apis mellifera L., Frieseomelitta francoi (Moure), and Bombus brevivillus Franklin. About 48% of the species were represented by a single individual. There was an inversion in the dominance rank when the species biomass was considered. B. brevivillus, A. mellifera, T spinipes, and other species represented by 15 individuals or less, such as the social wasps Synoeca cyanea (Olivier), Polistes canadensis (L.) and Myschocyttarus drewseni (Saussure), and the bees Eufriesea nigrohirta (Friese), Xylocopa grisescens Lepeletier and Megachile (Pseudocentron) sp.l were the predominant species. The use of biomass in diversity analysis permitted to detect differences in the relative contribution of species in hierarchy dominance. The comparison between bee faunas from different areas indicates a large similarity of the sampled fauna in Palmeiras (Bahia State) with neighboring ecosystems, although with low values of similarity. PMID:17348126

da Silva-Pereira, Vivane; Santos, Gilberto M M


Strains of the East Asian (W/Beijing) Lineage of Mycobacterium tuberculosis Are DosS/DosT-DosR Two-Component Regulatory System Natural Mutants? †  

PubMed Central

As part of our ongoing efforts to uncover the phenotypic consequences of genetic variability among clinical Mycobacterium tuberculosis isolates, we previously reported that isolates of the “East Asian” or “W/Beijing” lineage constitutively overexpress the coordinately regulated transcriptional program known as the DosR regulon under standard in vitro conditions. This phenotype distinguishes the W/Beijing lineage from all other M. tuberculosis lineages, which normally induce expression of this regulon only once exposed to low oxygen or nitric oxide, both of which result in inhibition of bacterial respiration and replication. Transcription of the DosR regulon is controlled through a two-component regulatory system comprising the transcription factor DosR and two possible cognate histidine sensor kinases, DosS and DosT. Through sequence analysis of a carefully selected set of isolates representing each of the major M. tuberculosis lineages, we describe herein a naturally occurring frameshift mutation in the gene encoding the DosT sensor kinase for isolates of the most recently evolved W/Beijing sublineages. Intriguingly, the occurrence of the frameshift mutation correlates precisely with the appearance of the constitutive DosR regulon phenotype displayed by the same “modern” W/Beijing strains. However, complementation studies have revealed that the mutation in dosT alone is not directly responsible for the constitutive DosR regulon phenotype. Our data serve to highlight the evolutionary pressure that exists among distinct M. tuberculosis lineages to maintain tight control over DosR regulon expression.

Fallow, Ashley; Domenech, Pilar; Reed, Michael B.



The Dos Bocas dam in Puerto Rico.  

NSDL National Science Digital Library

The Dos Bocas dam in Puerto Rico was constructed in 1942 to generate hydroelectric power. Dams in this region prevent the migration of shrimp and fish to areas upstream of the dam. As a result, compared to similar reaches of undammed streams, areas that are upstream of dammed rivers have higher amounts of organic and inorganic nutrients as well as altered invertebrate populations. Loss of migratory shrimp and fish upstream from dams alters basal resources and assemblages of invertebrate competitors and prey. This photograph originally appeared on the cover of Ecological Applications (16:1) in February of 2006.

Klemow, Kenneth



Well-log signatures of alluvial-lacustrine reservoirs and source rocks, Lagoa-Feia Formations, Lower Cretaceous, Campos Basin, offshore Brazil  

Microsoft Academic Search

The Campos basin is situated in offshore southeastern Brazil. The Lagoa Feia is the basal formation in the stratigraphic sequence of the basin, and was deposited during rifting in an evolving complex of lakes of different sizes and chemical characteristics, overlying and closely associated with rift volcanism. The stratigraphic sequence is dominated by lacustrine limestones and shales (some of them

D. Abrahao; J. E. Warme



Morphophysiological differences in leaves of Lavoisiera campos-portoana (Melastomataceae) enhance higher drought tolerance in water shortage events.  


Lavoisiera campos-portoana Barreto (Melastomataceae) has two kinds of leaves, pubescent and glabrous, and branches may have one or both types of leaves at the same moment. The plant is endemic to high altitude rocky fields in Brazil where rainfall is very seasonal. We predicted that these two leaf types are adaptations to different regimes of water availability. In experimental conditions of drought stress, we measured relative water content (RWC), photosynthetic pigments, chlorophyll a fluorescence and osmotic potential, and we counted stomates and measured stomatal conductance on both sides of leaves and compared these between the two leaf types. Stomatal conductance and electron transport rate at a given photosynthetic photon flux were greater in pubescent leaves than in glabrous leaves, and both declined during drought stress. Excessive photon flux density in glabrous leaves was greater during stress and after rehydration. Photosynthetic pigment content and RWC did not change between leaves, and values reduced during the stress period. Both types of leaves showed osmotic adjustment capacity, which occurred earlier in glabrous ones. These morphophysiological differences highlight the adaptation strategies of this plant to withstand drought, since the glabrous portion of the plant presents a preventive behavior, while the pubescent portion only shows the same responses in more advanced stages of drought stress. PMID:21400250

França, Marcel Giovanni Costa; Prados, Lucas Martins Zimmer; de Lemos-Filho, José Pires; Ranieri, Bernardo Dourado; Vale, Fernando Henrique Aguiar



Genetic and morphological variation in the Bulbophyllum exaltatum (Orchidaceae) complex occurring in the Brazilian “campos rupestres”: implications for taxonomy and biogeography  

Microsoft Academic Search

The Bulbophyllum exaltatum complex comprises 15 described taxa, and present a number of unresolved taxonomic questions, especially among populations\\u000a found in the Brazilian campo rupestre vegetation. Allozymes were examined in 33 populations to determine the degree of genetic variability between them and their\\u000a degree of differentiation to better define the taxa of this group. Additionally morphometric analyses were also performed

P. Luz Ribeiro; E. Leite Borba; E. de Camargo Smidt; S. Mota Lambert; A. Selbach Schnadelbach; C. van den Berg



DosS Responds to a Reduced Electron Transport System To Induce the Mycobacterium tuberculosis DosR Regulon?  

PubMed Central

The DosR regulon in Mycobacterium tuberculosis is involved in respiration-limiting conditions, its induction is controlled by two histidine kinases, DosS and DosT, and recent experimental evidence indicates DosS senses either molecular oxygen or a redox change. Under aerobic conditions, induction of the DosR regulon by DosS, but not DosT, was observed after the addition of ascorbate, a powerful cytochrome c reductant, demonstrating that DosS responds to a redox signal even in the presence of high oxygen tension. During hypoxic conditions, regulon induction was attenuated by treatment with compounds that occluded electron flow into the menaquinone pool or decreased the size of the menaquinone pool itself. Increased regulon expression during hypoxia was observed when exogenous menaquinone was added, demonstrating that the menaquinone pool is a limiting factor in regulon induction. Taken together, these data demonstrate that a reduced menaquinone pool directly or indirectly triggers induction of the DosR regulon via DosS. Biochemical analysis of menaquinones upon entry into hypoxic/anaerobic conditions demonstrated the disappearance of the unsaturated species and low-level maintenance of the mono-saturated menaquinone. Relative to the unsaturated form, an analog of the saturated form is better able to induce signaling via DosS and rescue inhibition of menaquinone synthesis and is less toxic. The menaquinone pool is central to the electron transport system (ETS) and therefore provides a mechanistic link between the respiratory state of the bacilli and DosS signaling. Although this report demonstrates that DosS responds to a reduced ETS, it does not rule out a role for oxygen in silencing signaling.

Honaker, Ryan W.; Dhiman, Rakesh K.; Narayanasamy, Prabagaran; Crick, Dean C.; Voskuil, Martin I.



An active security protocol against DoS attacks  

Microsoft Academic Search

Denial of service (DoS) attacks represent, in today's Internet, one of the most complex issues to address. A session is under a DoS attack if it cannot achieve its intended throughput due to the misbehavior of other sessions. Many research studies dealt with DoS, proposing models and\\/or architectures mostly based on an attack prevention approach. Prevention techniques lead to different

Domenico Cotroneo; L. Peluso; Simon Pietro Romano; Giorgio Ventre




Microsoft Academic Search

The objective of this study was to analyze body adiposity, daily TV viewing and prevalence of obesity, and to identify associations between TV viewing and relative body fat in boys and girls aged 11 to 14 years attending two municipal schools in Campo Grande - Mato Grosso, Brazil. One school is located in the central region of the city and

Ana Janice Piovesan; Renato Shoei Yonamine; Adair da Silva Lopes; Ruy Correa Filho


Quantification of Meso-Scale Porosity From Borehole Wall Images. Example From the ALIANCE Campos Experimental Site, Mallorca, Spain.  

NASA Astrophysics Data System (ADS)

The porosity distribution in carbonates from reefal origin is controlled both by primary and diagenetic processes (fracturing, dolomitisation and dissolution). The study and characterisation of porosity in reservoirs therefore requires a multi-scale and multidisciplinary approach. The analysis of mm-scale digital borehole wall images provides a reliable and practical method to identify mesoscale (vuggy to karstic) porosity and/or fracture porosity, and a new method providing a quantitative analysis of such images is presented here. This new method is based on the analysis of borehole acoustic and optical images. These images have been collected from the MC2 corehole that penetrates the Miocene reefal carbonates of the Campos Coastal site (Mallorca, Baleares, Spain). These sites were drilled in the framework of the Advance Logging Investigations of Aquifers iN Coastal Environment (ALIANCE) European Community Program aimed at developing new techniques to investigate salt-water intrusion in coastal regions. This new method (i) is insensitive to potential eccentering bias of the borehole image logging tools, (ii) analyses vugs and background based on the greyscale colour of each digital images and (iii) calculates the percentage of vuggy/fracture porosity and its attributes in terms of pores size, shape and orientation distributions. Experimentation and comparison with classical porosity determinations (triple weight and Mercury (Hg) porosity) on core, image analysis of slabbed-core samples and thin sections showed that a simple greyscale threshold would not realistically differentiate between greyscale contrast of vugs and background. A moving average calculated around the circumference of the borehole and expressed as the background greyscale intensity is identified as a baseline from which to identify a local greyscale threshold for vugs. Once identified, the characterization of the pores intersected by the borehole as a function of depth and azimuth allow (i) to correlate porosity with lithology (natural gamma ray, velocity and electrical conductivity) as well as hydrological profiles (fluid temperature, pH, dissolved 02), (ii) to characterize lithological units, (iii) to identify the diagenetic processes leading to the present transport properties of the structure and (iv) to evaluate the impact of present brine intrusion several km into the island.

Pezard, P.; Gaillot, P.; Maria-Sube, Y.; Gouze, P.; Lotz, G.



Resist DoS attacks in UMTS-WLAN  

NASA Astrophysics Data System (ADS)

Wireless network is more vulnerable to denial of service (DoS) attacks than wired one. In this paper we propose two methods to resist DoS attacks in UMTS-WLAN network, one is active and the other is passive. These two are complementary to each other. In active DoS defense method, a mobile terminal generates an authorized anonymous ID (AAI) using its true ID such as IP address, MAC address, PIN code, or asymmetric key, and substitutes its true ID with the authorized anonymous ID. The mobile terminal may be authenticated by the UMTS-WLAN, however its true ID is anonymous to intending attackers. This method can be used to isolate de-authenticating/disassociating DoS attackers, spoofing power-save DoS attacker, etc. In passive DoS defense method, we propose a trace back scheme. We use covert channels in the header of mobile IP packets to trace back the malicious nodes by embedding some address information of intermediate nodes, and recovering the embedded information by the victim. After the victim successfully traces the attacking paths from malicious nodes, it can segregate the malicious nodes and protect itself. This method can be used to resist DoS attacks of mass-produced junk message congestions.

Qu, Huyu; Cheng, Qiang



The Astronomer/instrument Maker Campos Rodrigues and the Contribution of the Observatory of Lisbon for the 1900-1901 Solar Parallax Programme  

NASA Astrophysics Data System (ADS)

In 1900 the Permanent International Committee for Photographic Execution of the Sky-map promoted a comprehensive observational programme on the asteroid 433 Eros, in order to determine a new and more accurate value for the solar parallax. Although having but scarce material means, the Astronomical Observatory of Lisbon gave an important contribution to this programme. This was made possible by improvements introduced by the astronomer and instrument maker Campos Rodrigues in the instruments and observational methods then employed at the observatory. This case is presented here from the point of view of the relationship between scientists and the material culture of science.

Raposo, Pedro



DataPlus™ - a revolutionary applications generator for DOS hand ...  


Apr 3, 2013 ... - We Participate · Government Made Easy ... The user designs and tests the application on the desktop PC and then transfers it to a DOS field computer. Other features include: error checking, missing ...


Thorim Utilization in the Angra DOS Reis PWR.  

National Technical Information Service (NTIS)

A study was made on the use of thorium in the PWR Angra dos Reis 1 cell. Reactor calculations were made demostrating that a reduction in uranium ore comsuption of 30% is possible. (Atomindex citation 08:301655)

W. J. Oosterkamp F. Correa



Well-log signatures of alluvial-lacustrine reservoirs and source rocks, Lagoa-Feia Formations, Lower Cretaceous, Campos Basin, offshore Brazil  

SciTech Connect

The Campos basin is situated in offshore southeastern Brazil. The Lagoa Feia is the basal formation in the stratigraphic sequence of the basin, and was deposited during rifting in an evolving complex of lakes of different sizes and chemical characteristics, overlying and closely associated with rift volcanism. The stratigraphic sequence is dominated by lacustrine limestones and shales (some of them organic-rich), and volcaniclastic conglomerates deposited on alluvial fans. The sequence is capped by marine evaporites. In the Lagoa Feia Formation, complex lithologies make reservoirs and source rocks unsuitable for conventional well-log interpretation. To solve this problem, cores were studied and the observed characteristics related to log responses. The results have been extended through the entire basin for other wells where those facies were not cored. The reservoir facies in the Lagoa Feia Formation are restricted to levels of pure pelecypod shells (''coquinas''). Resistivity, sonic, neutron, density, and gamma-ray logs were used in this work to show how petrophysical properties are derived for the unconventional reservoirs existing in this formation. The same suite of logs was used to develop methods to define geochemical characteristics where source rock data are sparse in the organic-rich lacustrine shales of the Lagoa Feia Formation. These shales are the main source rocks for all the oil discovered to date in the Campos basin.

Abrahao, D.; Warme, J.E.



Levelling profiles and a GPS network to monitor the active folding and faulting deformation in the Campo de Dalias (Betic Cordillera, southeastern Spain).  


The Campo de Dalias is an area with relevant seismicity associated to the active tectonic deformations of the southern boundary of the Betic Cordillera. A non-permanent GPS network was installed to monitor, for the first time, the fault- and fold-related activity. In addition, two high precision levelling profiles were measured twice over a one-year period across the Balanegra Fault, one of the most active faults recognized in the area. The absence of significant movement of the main fault surface suggests seismogenic behaviour. The possible recurrence interval may be between 100 and 300 y. The repetitive GPS and high precision levelling monitoring of the fault surface during a long time period may help us to determine future fault behaviour with regard to the existence (or not) of a creep component, the accumulation of elastic deformation before faulting, and implications of the fold-fault relationship. PMID:22319309

Marín-Lechado, Carlos; Galindo-Zaldívar, Jesús; Gil, Antonio José; Borque, María Jesús; de Lacy, María Clara; Pedrera, Antonio; López-Garrido, Angel Carlos; Alfaro, Pedro; García-Tortosa, Francisco; Ramos, Maria Isabel; Rodríguez-Caderot, Gracia; Rodríguez-Fernández, José; Ruiz-Constán, Ana; de Galdeano-Equiza, Carlos Sanz



Levelling Profiles and a GPS Network to Monitor the Active Folding and Faulting Deformation in the Campo de Dalias (Betic Cordillera, Southeastern Spain)  

PubMed Central

The Campo de Dalias is an area with relevant seismicity associated to the active tectonic deformations of the southern boundary of the Betic Cordillera. A non-permanent GPS network was installed to monitor, for the first time, the fault- and fold-related activity. In addition, two high precision levelling profiles were measured twice over a one-year period across the Balanegra Fault, one of the most active faults recognized in the area. The absence of significant movement of the main fault surface suggests seismogenic behaviour. The possible recurrence interval may be between 100 and 300 y. The repetitive GPS and high precision levelling monitoring of the fault surface during a long time period may help us to determine future fault behaviour with regard to the existence (or not) of a creep component, the accumulation of elastic deformation before faulting, and implications of the fold-fault relationship.

Marin-Lechado, Carlos; Galindo-Zaldivar, Jesus; Gil, Antonio Jose; Borque, Maria Jesus; de Lacy, Maria Clara; Pedrera, Antonio; Lopez-Garrido, Angel Carlos; Alfaro, Pedro; Garcia-Tortosa, Francisco; Ramos, Maria Isabel; Rodriguez-Caderot, Gracia; Rodriguez-Fernandez, Jose; Ruiz-Constan, Ana; de Galdeano-Equiza, Carlos Sanz



The effect of an oil drilling operation on the trace metal concentrations in offshore bottom sediments of the Campos Basin oil field, SE Brazil.  


The concentrations of Al, Fe, Mn, Zn, Cu, Pb, Ni, Cr, Ba, V, Sn and As in offshore bottom sediments from the Bacia de Campos oil field, SE Brazil, were measured at the beginning and at 7 months after completion of the drilling operation. Concentrations of Al, Fe, Ba, Cr, Ni and Zn were significantly higher closer to the drilling site compared to stations far from the site. Average concentrations of Al, Cu, and in particular of Ni, were significantly higher at the end of the drilling operation than at the beginning. Comparison between drilling area sediments with control sediments of the continental platform, however, showed no significant difference in trace metal concentrations. Under the operation conditions of this drilling event, the results show that while changes in some trace metal concentrations do occur during drilling operations, they are not significantly large to be distinguished from natural variability of the local background concentrations. PMID:12222892

Rezende, C E; Lacerda, L D; Ovalle, A R C; Souza, C M M; Gobo, A A R; Santos, D O



Major controlling factors on hydrocarbon generation and leakage in South Atlantic conjugate margins: A comparative study of Colorado, Orange, Campos and Lower Congo basins  

NASA Astrophysics Data System (ADS)

We present a supra-regional comparative study of the major internal and external factors controlling source rock (SR) maturation and hydrocarbon (HC) generation and leakage in two pairs of conjugate margins across the South Atlantic: the Brazil (Campos Basin)-Angola (Lower Congo Basin) margins located in the "central segment", and the Argentina (Colorado Basin)-South Africa (Orange Basin) in the "southern segment". Our approach is based on the analysis and integration of borehole data, 1D numerical modeling, 2D seismic reflection data, and published reports. Coupling of modeling results, sedimentation rate calculation and seal-bypass system analysis reveal that: (1) oil window is reached by syn-rift SRs in the southern segment during the Early to Late Cretaceous when thermal subsidence is still active, while in the central segment they reach it in Late-Cretaceous-Neogene during a salt remobilization phase, and (2) early HC generation from post-rift SRs in the southern segment and from all SRs in the central segment appears to be controlled mainly by episodes of increased sedimentation rates. The latter seems to be associated with the Andes uplift history for the western South Atlantic basins (Campos and Colorado) and to a possibly climate-driven response for the eastern South Atlantic basins (Orange and Lower Congo). Additionally, we observe that the effect of volcanism on SR maturation in the southern segment is very local. The comparison of Cretaceous mass transport deposit (MTD) episodes with HC peak of generation and paleo-leakage indicators in the southern segment revealed the possible causal effect that HC generation and leakage have over MTD development. Interestingly, Paleogene leakage indicators, which were identified in the Argentina-South Africa conjugate margins, occur contemporaneously to low sedimentation rate periods. Nonetheless, present-day leakage indicators which were also identified in both pairs of conjugate margins might be related to seal failure events linked to eustatic sea-level drops.

Marcano, Gabriela; Anka, Zahie; di Primio, Rolando



[Nobody gives orders here: the meanings of work and health for settlers from the Landless Rural Workers' Movement].  


This paper discusses the partial results of qualitative research on lifestyles and meanings attributed to health and work among settlers from the Landless Rural Workers' Movement (MST) and identifies strategies developed by workers to maintain and/or promote health. The study was conducted in a rural settlement affiliated with the MST in Campos dos Goytacazes, Rio de Janeiro State, Brazil. The ergological approach was the main theoretical and methodological reference for understanding work from the perspective of "human activity". The study techniques included document analysis, participant observation, semi-structured interviews, and focus groups, and the data were submitted to thematic content analysis. The landless rural workers attributed the meanings of freedom and satisfaction to their work, associated with self-management and autonomy, which they reported as key elements for health. Although rural work was considered tiring, the work and way of life in the settlement provided this community with possibilities for ensuring their health and resisting the hegemonic agribusiness model. PMID:24005925

Santos, Júlio César Borges Dos; Hennington, Elida Azevedo



Genetic progress in the UNB-2U population of popcorn under recurrent selection in Rio de Janeiro, Brazil.  


As part of the Universidade Estadual do Norte Fluminense recurrent selection program of popcorn, we evaluated full-sib families of the sixth cycle of recurrent selection and estimated genetic progress for grain yield and expansion capacity. We assessed 200 full-sib families for 10 agronomic traits, in a randomized block design, with two replications within sets in two environments: Campos dos Goytacazes and Itaocara, in the State of Rio de Janeiro, Brazil. There were significant differences for families/"sets" for all traits, indicating genetic variability that could be exploited in future cycles. In the selection of superior progenies, the Mulamba and Mock index gave the best gains for popping expansion (PE) and grain yield (GY), with values of 10.97 and 15.30%, respectively, using random economic weights. By comparing the evolution of the means obtained for PE and GY in the cycles C(0), C(1), C(2), C(3), C(4), C(5), and predicted for C(6), a steady increase was observed for both PE and GY, with the addition of 1.71 mL/g (R(2) = 0.93) and 192.87 kg/ha (R(2) = 0.88), respectively, in each cycle. Given the good performance of this popcorn population in successive cycles of intrapopulation recurrent selection, we expect that a productive variety with high expansion capacity will soon be available for producers in the north and northwest regions of Rio de Janeiro State, Brazil. PMID:22653588

Ribeiro, R M; do Amaral Júnior, A T; Gonçalves, L S A; Candido, L S; Silva, T R C; Pena, G F



Improvement of a popcorn population using selection indexes from a fourth cycle of recurrent selection program carried out in two different environments.  


We estimated genetic gains for popcorn varieties using selection indexes in a fourth cycle of intrapopulation recurrent selection developed in the campus of the Universidade Estadual do Norte Fluminense. Two hundred full-sib families were obtained from the popcorn population UNB-2U of the third recurrent selection cycle. The progenies were evaluated in a randomized block design with two replications at sites in two different environments: the Colégio Estadual Agrícola Antônio Sarlo, in Campos dos Goytacazes, and the Empresa de Pesquisa Agropecuária do Estado do Rio de Janeiro (PESAGRO-RIO), in Itaocara, both in the State of Rio de Janeiro. There were significant differences between families within sets in all traits, indicating genetic variability that could be exploited in future cycles. Thirty full-sib families were selected to continue the program. The selection indexes used to predict the gains were those of Mulamba and Mock, Smith and Hazel. The best results were obtained with the Mulamba and Mock index, which allowed the prediction of negative gains for the traits number of diseased ears and ears attacked by pests, number of broken plants and lodging, as well as ears with poor husk cover. It also provided higher gains for popping expansion and grain yield than with the other indexes, giving values of 10.55 and 8.50%, respectively, based on tentatively assigned random weights. PMID:20309820

Amaral Júnior, A T; Freitas Júnior, S P; Rangel, R M; Pena, G F; Ribeiro, R M; Morais, R C; Schuelter, A R



Computer viruses: ways of reproduction in MS-DOS  

Microsoft Academic Search

The methods used by computer viruses to reproduce themselves in IBM PC-compatibles operating under MS-DOS are studied. The results can be of use for classification of viruses and the creation of anti-virus tools. Viruses are examined under the following headings: irritating viruses, viruses that damage files, viruses that damage the file system and viruses that injure the hardware

S. I. Shoutkov; A. V. Spesivtsev



When worlds collide - Mac to MS-DOS. [Data transfer to and from Apple Macintosh computers and MS-DOS based personal computers  

SciTech Connect

A number of methods and products, both hardware and software, to allow data exchange between Apple Macintosh computers and MS-DOS based systems. These included serial null modem connections, MS-DOS hardware and/or software emulation, MS-DOS disk-reading hardware and networking.

Busbey, A.B.



Infl uence of pre-salt alignments in the post- Aptian magmatism in the Cabo Frio High and its surroundings, Santos and Campos Basins, SE Brazil: an example of non-plume-related magmatism  

Microsoft Academic Search

This study of the Late Cretaceous and Early Tertiary magmatism in the offshore Cabo Frio area, at the border between the Santos and Campos Basins, SE Brazil, is based 2D and 3D seismic lines processed using amplitude Volume of Amplitudes (VA) and onshore mapping and offshore well data. The data suggest interpretations regarding genesis of this magmatism which do not

Sérgio Goulart Oreiro; José Antônio Cupertino; Peter Szatmari; Antônio Thomaz


Influence of pre-salt alignments in post-Aptian magmatism in the Cabo Frio High and its surroundings, Santos and Campos basins, SE Brazil: An example of non-plume-related magmatism  

Microsoft Academic Search

This study, based on interpretations of 2D and 3D seismic data, onshore satellite data, and offshore seismic mapping and well data, addresses the geological evolution of Late Cretaceous and Early Tertiary magmatism in the offshore Cabo Frio area, at the border between the Santos and Campos basins, SE Brazil. The analysis of the available data set suggests an alternative genesis

Sérgio Goulart Oreiro; José Antônio Cupertino; Peter Szatmari; Antônio Thomaz Filho




Microsoft Academic Search

Resumo - Este trabalho é pioneiro para a região Centro-Oeste do Brasil e visa ao aprofundamento da problemática do aproveitamento do Rio Araguaia como via navegável para transportar as safras de grãos das regiões Centro-Norte. O Programa de Desenvolvimento da Hidrovia Tocantins- Araguaia é uma iniciativa do Ministério dos Transportes para estabelecer a navegação fluvial confiável e segura em 2.242

Rone Antônio de Azevedo


Prospective study on the prevention of vertical transmission of HIV in Campo Grande, Mato Grosso do Sul, Brazil, from 1996 to 2001.  


This prospective study, involving 76 pregnant women infected with HIV, paired with their 79 exposed infants, was carried out between May 1996 and October 2001, at the Reference Department for Pregnant Women Infected with HIV in Campo Grande, Mato Grosso do Sul. The mean age of the pregnant women was 24 years; 88% (67/76) apparently were infected due to sexual practices; 88% (67/76) were housewives; 823% (63/76) graduated from junior high school; 14.5% (11/76) reported co-infection with Hepatitis C, 9.2% with Syphilis; 51% (39/76) learned the diagnosis during prenatal care; 67% (51/76) reported HIV clinical symptomatology and 9.2% (7/76) reported opportunistic infections. Elective cesareans were performed in 57% (43/76). The mean gestational age at delivery was 38 weeks and we found 12.5% (10/80) pronatis; 97% (74/76) had a ruptured membrane time after less than four hours and one child (1.3%) was nursed. ACTG 076 Protocol (AIDS Clinical Trial Group 076) was used in 80% (61/76) of the pregnant women, with 100% adherence; 62% (38/61) used zidovudine plus another antiretroviral in the gestation; 92% (73/79) of the infants used zidovudine after the birth and 19% (14/73) used zidovudine and lamivudine. The transmission rate in this study was 2.5%. PMID:15947843

Dal Fabbro, Márcia Maria Ferrairo Janini; Cunha, Rivaldo Venâncio da; Paniago, Anamaria Mello Miranda; Lindenberg, Andréa de Siqueira C; Freitas, Gisele Maria Brandão de; Nogueira, Susie Andries



Ultrafast ligand dynamics in the heme-based GAF sensor domains of the histidine kinases DosS and DosT from Mycobacterium tuberculosis†  

PubMed Central

The transcriptional regulator DosR from M. tuberculosis plays a crucial role in the virulence to dormancy transition of the pathogen. DosR can be activated by DosT and DosS, two histidine kinases with heme-containing sensor GAF domains, capable of diatomic ligand binding, To investigate the initial processes occurring upon ligand dissociation, we performed ultrafast time-resolved absorption spectroscopy of the isolated sensor domains ligated with O2, NO and CO. The results reveal a relatively closed heme pocket for both proteins. For DosT the yield of O2 escape from the heme pocket on the picoseconds timescale upon photodissociation was found to be very low (1.5%), similar to other heme-based oxygen sensor proteins, implying that this sensor acts as an effective O2 trap. Remarkably, this yield is an order of magnitude higher in DosS (18%). For CO, by contrast, the fraction of CO rebinding within the heme pocket is higher in DosS. Experiments with mutant DosT sensor domains and molecular dynamics simulations indicate an important role in ligand discrimination of the distal tyrosine, present in both proteins, which forms a hydrogen bond with heme-bound O2. We conclude that despite their similarity, DosT and DosS display ligand-specific different primary dynamics during the initial phases of intra-protein signaling. The distal tyrosine, present in both proteins, plays an important role in these processes.

Vos, Marten H.; Bouzhir-Sima, Latifa; Lambry, Jean-Christophe; Luo, Hao; Eaton-Rye, Julian J.; Ioanoviciu, Alexandra; Ortiz de Montellano, Paul R.; Liebl, Ursula



Estudio dinámico de un potencial perturbador dependiente de dos parámetros  

NASA Astrophysics Data System (ADS)

El objeto del presente trabajo consiste en el estudio dinámico de un sistema dinámico caracterizado por la función hamiltoniana correspondiente a un satélite planetario perturbado por la acción del Sol y del achatamiento del planeta madre. Cuando dicha Hamiltoniana se promedia respecto de los términos de corto período, esta queda con dos grados de libertad, y su estudio puede ser realizado con las herramientas clásicas de la dinámica no-lineal. Se tratará de determinar regiones regulares y caóticas de movimiento. En el caso de estas últimas, es de particular interés la determinación de su orígen.

Miloni, O.; Brunini, A.


Effects of non-aqueous fluids-associated drill cuttings discharge on shelf break macrobenthic communities in the Campos Basin, Brazil.  


This paper assesses the effects of non-aqueous fluids (NAF)-associated drill cuttings discharge on shelf break macrobenthic communities in the Campos Basin, off the southeast Brazilian coast, Rio de Janeiro State. Samples were taken with a 0.25-m2 box corer from surrounding two oil and gas wells on three monitoring cruises: before drilling, three months after drilling, and 22 months after drilling. Statistical methodologies used Bayesian geostatistical and analysis of variance models to evaluate the effects of the NAF-associated drill cuttings discharge and to define the impact area. The results indicated that marked variations were not observed in the number of families between cruises, though there were changes in the fauna composition. The changes seen in biological descriptors in both control and background situation areas were not considered significant, showing a temporal homogeneity in means. The impact area presented changes in biological descriptors of communities and trophic structure during the three cruises and such changes were correlated to chemical and physical variables related to the drilling activities, as a result of the mix of drill cuttings and sediment and the anoxic conditions established in the substrate. In that area, three months after drilling, a decrease in diversity and an increase in density, motile deposit-feeders and Pol/Crp ratio, and dominance of opportunistic organisms, such as the capitellid Capitella sp., were observed and, 22 months after drilling, an increase of diversity, reduction of dominance of capitellid polychaete, changes in the fauna composition, and a dominance of opportunistic burrowing and tube-building organisms were observed, indicating an ecological succession process. PMID:20524059

Santos, Maria Fernanda L; Silva, Janete; Fachel, Jandyra M G; Pulgati, Fernando H



The Dormancy Regulator DosR Controls Ribosome Stability in Hypoxic Mycobacteria*  

PubMed Central

It is thought that during latent infection, Mycobacterium tuberculosis bacilli are retained within granulomas in a low-oxygen environment. The dormancy survival (Dos) regulon, regulated by the response regulator DosR, appears to be essential for hypoxic survival in M. tuberculosis, but it is not known how the regulon promotes survival. Here we report that mycobacteria, in contrast to enteric bacteria, do not form higher-order structures (e.g. ribosomal dimers) upon entry into stasis. Instead, ribosomes are stabilized in the associated form (70S). Using a strategy incorporating microfluidic, proteomic, and ribosomal profiling techniques to elucidate the fate of mycobacterial ribosomes during hypoxic stasis, we show that the dormancy regulator DosR is required for optimal ribosome stabilization. We present evidence that the majority of this effect is mediated by the DosR-regulated protein MSMEG_3935 (a S30AE domain protein), which is associated with the ribosome under hypoxic conditions. A ?3935 mutant phenocopies the ?dosR mutant during hypoxia, and complementation of ?dosR with the MSMEG_3935 gene leads to complete recovery of dosR mutant phenotypes during hypoxia. We suggest that this protein is named ribosome-associated factor under hypoxia (RafH) and that it is the major factor responsible for DosR-mediated hypoxic survival in mycobacteria.

Trauner, Andrej; Lougheed, Kathryn E. A.; Bennett, Mark H.; Hingley-Wilson, Suzanne M.; Williams, Huw D.



33 CFR 105.245 - Declaration of Security (DoS).  

Code of Federal Regulations, 2013 CFR

...for requesting a DoS and for handling DoS requests from a vessel. (b) At MARSEC Level 1, a facility receiving a cruise ship or a manned vessel carrying Certain Dangerous Cargo, in bulk, must comply with the following: (1)...



Genetic data on 15 STR autosomal loci for a sample population of the Northern Region of the State of Rio de Janeiro, Brazil.  


Allele frequencies data, paternity and forensic parameters for 15 autosomal short tandem repeat (STR) autosomal markers (D8S1179, D21S11, D7S820, CSF1PO, D5S818, D3S1358, TH01, D13S317, D16S539, D2S1338, TPOX, D19S433, vWA, D18S51, FGA) were determined for a sample of 494 unrelated individuals undergoing kinship analysis and molecular cytogenetic testing from the population of the city of Campos dos Goytacazes, Northern State of Rio de Janeiro, Brazil. The loci with the highest polymorphism information content were D18S51 (0.874), D2S1338 (0.853), FGA (0.852), D21S11 (0.838). The combined power of discrimination and the combined power of exclusion were 0.999999999999999 and 0.999526684, respectively. At the available common loci CSF1PO, TH01, TPOX, vWA, D16S539, D7S820 and D13S317, allele frequencies were compared with population databases from State of Alagoas, State of Amazonas, State of São Paulo (Brazilian mulattoes, descendants of Europeans, Africans or Asians), State of Mato Grosso do Sul and State of Rio de Janeiro. No significant distances were observed. The interpopulation genetic distance (Fst coefficients) to the present database, ranged 0.0022 (p=0.446) (Northern State Rio de Janeiro-State of São Paulo European-descendants) to 0.0138 (p=0.993) (Northern State Rio de Janeiro-State of São Paulo Asian-descendants). The Asian-descendants Brazilians are the least admixed. All other groups are admixed as one unique population. PMID:19948317

Rodrigues, Eduardo Leal; Machado, Filipe Brum; Arruda, Marilia Mothé; de Moura-Neto, Rodrigo Soares; Medina-Acosta, Enrique



33 CFR 104.255 - Declaration of Security (DoS).  

Code of Federal Regulations, 2013 CFR

... 2013-07-01 false Declaration of Security (DoS). 104.255 Section 104.255 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY MARITIME SECURITY MARITIME SECURITY: VESSELS Vessel...



Measurements of degree of sensitization (DoS) in aluminum alloys using EMAT ultrasound.  


Sensitization in 5XXX aluminum alloys is an insidious problem characterized by the gradual formation and growth of beta phase (Mg(2)Al(3)) at grain boundaries, which increases the susceptibility of alloys to intergranular corrosion (IGC) and intergranular stress-corrosion cracking (IGSCC). The degree of sensitization (DoS) is currently quantified by the ASTM G67 Nitric Acid Mass Loss Test, which is destructive and time consuming. A fast, reliable, and non-destructive method for rapid detection and the assessment of the condition of DoS in AA5XXX aluminum alloys in the field is highly desirable. In this paper, we describe a non-destructive method for measurements of DoS in aluminum alloys with an electromagnetic acoustic transducer (EMAT). AA5083 aluminum alloy samples were sensitized at 100°C with processing times varying from 7days to 30days. The DoS of sensitized samples was first quantified with the ASTM 67 test in the laboratory. Both ultrasonic velocity and attenuation in sensitized specimens were then measured using EMAT and the results were correlated with the DoS data. We found that the longitudinal wave velocity was almost a constant, independent of the sensitization, which suggests that the longitudinal wave can be used to determine the sample thickness. The shear wave velocity and especially the shear wave attenuation are sensitive to DoS. Relationships between DoS and the shear velocity, as well as the shear attenuation have been established. Finally, we performed the data mining to evaluate and improve the accuracy in the measurements of DoS in aluminum alloys with EMAT. PMID:21232777

Li, Fang; Xiang, Dan; Qin, Yexian; Pond, Robert B; Slusarski, Kyle



Establishment and Characterization of a Human Ovarian Neoplastic Cell Line, DOs  

Microsoft Academic Search

A permanent human neoplastic cell line, DO-s, was established from ascites of a patient with a well-differentiated mucinous cyst-adenocarci- numa of the ovary. This cell line grew as vermiform, floating colonies of epithelial cells in culture. The karyotype of DO-s was of a human female; the chromosome number ranged from 54 to 66 with several abnormalities, mainly trisomy. Epithelial-like character

Tony W. Briers; Patricia Stroobants; Tanja M. Vandeputte; Etienne J. Nouwen; M. Viviane; Gerard Eestermans; D. Van Bockstaele; E. De Broe


Non-invasive tissue temperature measurements based on quantitative diffuse optical spectroscopy (DOS) of water  

NASA Astrophysics Data System (ADS)

We describe the development of a non-invasive method for quantitative tissue temperature measurements using Broadband diffuse optical spectroscopy (DOS). Our approach is based on well-characterized opposing shifts in near-infrared (NIR) water absorption spectra that appear with temperature and macromolecular binding state. Unlike conventional reflectance methods, DOS is used to generate scattering-corrected tissue water absorption spectra. This allows us to separate the macromolecular bound water contribution from the thermally induced spectral shift using the temperature isosbestic point at 996 nm. The method was validated in intralipid tissue phantoms by correlating DOS with thermistor measurements (R = 0.96) with a difference of 1.1 ± 0.91 °C over a range of 28-48 °C. Once validated, thermal and hemodynamic (i.e. oxy- and deoxy-hemoglobin concentration) changes were measured simultaneously and continuously in human subjects (forearm) during mild cold stress. DOS-measured arm temperatures were consistent with previously reported invasive deep tissue temperature studies. These results suggest that DOS can be used for non-invasive, co-registered measurements of absolute temperature and hemoglobin parameters in thick tissues, a potentially important approach for optimizing thermal diagnostics and therapeutics.

Chung, S. H.; Cerussi, A. E.; Merritt, S. I.; Ruth, J.; Tromberg, B. J.



A study of lasing wavelength by DOS in the temperature-tunable cholesteric liquid crystal lasers  

NASA Astrophysics Data System (ADS)

For the dye-doped cholesteric liquid crystal (CLC) laser system, we established the relationship between the density of optical state (DOS) and temperature based on the transmission coefficient of the CLC, and calculated the change of DOS distribution with the temperature that results in tunable lasing wavelength. The simulation was further verified by the experiment and it was found that the laser emission wavelength from the dye-doped CLC can be tuned from 662 to 622 nm by the temperature, which is in good agreement with our proposed theory.

Wu, Rina; Li, Yong; Wu, Jie; Ma, Ji; Dai, Qin



Reagent based DOS: A "Click, Click, Cyclize" strategy to probe chemical space†  

PubMed Central

The synthesis of small organic molecules as probes for discovering new therapeutic agents has been an important aspect of chemical-biology. Herein we report a reagent-based, diversity-oriented synthetic (DOS) strategy to probe chemical and biological space via a “Click, Click, Cyclize” protocol. In this DOS approach, three sulfonamide linchpins underwent cyclization protocols with a variety of reagents to yield a collection of structurally diverse S-heterocycles. In silico analysis is utilized to evaluate the diversity of the compound collection against chemical space (PC analysis), shape space (PMI) and polar surface area (PSA) calculations.

Rolfe, Alan; Lushington, Gerald. H.



Reagent based DOS: a "Click, Click, Cyclize" strategy to probe chemical space.  


The synthesis of small organic molecules as probes for discovering new therapeutic agents has been an important aspect of chemical-biology. Herein we report a reagent-based, diversity-oriented synthetic (DOS) strategy to probe chemical and biological space via a "Click, Click, Cyclize" protocol. In this DOS approach, three sulfonamide linchpins underwent cyclization protocols with a variety of reagents to yield a collection of structurally diverse S-heterocycles. In silico analysis is utilized to evaluate the diversity of the compound collection against chemical space (PC analysis), shape space (PMI) and polar surface area (PSA) calculations. PMID:20401396

Rolfe, Alan; Lushington, Gerald H; Hanson, Paul R



Teoria e institucionalização dos sistemas partidários após a terceira onda de democratização  

Microsoft Academic Search

Resumo Este artigo examina duas diferenças entre os sistemas partidários das democracias industriais avançadas e os de países menos desenvolvidos, particularmente em termos do nível de institucionalização. O argumento geral é que os sistemas partidários dos países menos desenvolvidos são menos institucionalizados. De modo mais específico, mostramos primeiro que a maioria das democracias e semi-democracias em países menos desenvolvidos têm

Scott Mainwaring; Mariano Torcal




Microsoft Academic Search

RESUMO: O estudo avaliou as condições atmosféricas que propiciaram a ocorrência de tornados em 29 de março de 2006 em Piracicaba e Santa Bárbara d'Oeste, assim como as características físicas dos locais. Levantou, ainda, os impactos causados em fontes diversas da imprensa, prefeituras e defesa civil, e por meio de questionários, a percepção da população. Em Santa Bárbara d'Oeste foram

Luci Hidalgo Nunes; Daniel Henrique Candido


Infrared and Isotopic Evidence for Diagenesis of Bone Apatite at Dos Pilas, Guatemala: Palaeodietary Implications  

Microsoft Academic Search

The use of stable carbon isotopic analysis of bone apatite to reconstruct prehistoric diets is hindered by the possibility of diagenetic alteration of carbonate during burial. We examine apatite preservation in Classic Period Maya skeletal remains from Dos Pilas, Guatemala, using Fourier transform infrared spectroscopy (FTIR). We use weight % CO2evolved from apatite, FTIR carbonate\\/phosphate absorbance ratios, phosphate peak splitting

Lori E. Wright; Henry P. Schwarcz



Function, regulation and pathological roles of the Gab/DOS docking proteins  

PubMed Central

Since their discovery a little more than a decade ago, the docking proteins of the Gab/DOS family have emerged as important signalling elements in metazoans. Gab/DOS proteins integrate and amplify signals from a wide variety of sources including growth factor, cytokine and antigen receptors as well as cell adhesion molecules. They also contribute to signal diversification by channelling the information from activated receptors into signalling pathways with distinct biological functions. Recent approaches in protein biochemistry and systems biology have revealed that Gab proteins are subject to complex regulation by feed-forward and feedback phosphorylation events as well as protein-protein interactions. Thus, Gab/DOS docking proteins are at the centre of entire signalling subsystems and fulfil an important if not essential role in many physiological processes. Furthermore, aberrant signalling by Gab proteins has been increasingly linked to human diseases from various forms of neoplasia to Alzheimer's disease. In this review, we provide a detailed overview of the structure, effector functions, regulation and evolution of the Gab/DOS family. We also summarize recent findings implicating Gab proteins, in particular the Gab2 isoform, in leukaemia, solid tumours and other human diseases.



Satellite Remote Sensing of Turbidity and Sediment Concentration in Lagoa dos Patos (Abstract Only).  

National Technical Information Service (NTIS)

The use of LANDSAT Multispectral Scanner (MSS) digital imagery for mapping water turbidity and suspended sediment in Lagoa dos Patos, Rio Grande do Sul was investigated. Field measurements were taken form vessels in a test area, Saco De Tapes when there w...

J. Taylor V. Patel A. Belward L. Beltrame M. Goncalves




Microsoft Academic Search

Resumo: Esta pesquisa analisa o papel das políticas públicas no processo de produção do solo urbano nos Alagados e as implicações dos movimentos populares reivindicando seu direito à cidade. Parte-se do princípio de que tais intervenções do Estado e da comunidade foram relevantes para a continuidade da luta pela morada e pela vida nos Alagados. Busca-se desvendar as contradições das

Janio Santos



Comparación de la citotoxicidad del amaranto en dos líneas celulares de mamífero utilizando bioensayos colorimétricos rápidos  

Microsoft Academic Search

Resumen: El amaranto es un colorante de color rojo amplia- mente utilizado en alimentación y cosmética. En la bibliografía consultada no se han encontrado referencias sobre la citotoxici- dad de este colorante por lo que se ha creído oportuno abordar su estudio. Este estudio se ha llevado a cabo en dos líneas celu- lares de naturaleza fibroblástica: línea celular 3T3

Santa María A; López A; Díaz MM; Ortiz AI



Avaliação da satisfação dos usuários de serviços de Fisioterapia Evaluation of Physical Therapy service user satisfaction  

Microsoft Academic Search

Resumo Objetivo: Caracterizar o perfi l sociodemográfi co e avaliar a satisfação dos usuários de serviços de Fisioterapia em Teresina (PI), com relação à agilidade para agendamento da consulta e atendimento, acolhimento, confi ança, ambiência, humanização, acessibilidade, efi cácia e expectativa sobre os serviços recebidos. Materiais e métodos: A amostra foi constituída por 376 pacientes selecionados em três clínicas de

Machado NP; Nogueira LT


Proximal segment position after distraction with the MD-DOS device  

Microsoft Academic Search

We investigated cephalometrically the movement of the proximal segment in the sagittal plane in patients treated with distraction (MD-DOS device) for mandibular lengthening. The proximal segment was anteriorly rotated, whilst the distal segment was posteriorly rotated after the lengthening procedure. Thus the angle of the jaw was advanced half the distance of the advancement of the distal segment. One possible

Kristoffel Hendrickx; Maurice Y. Mommaerts; Walter Jacobs; Johan V. S. Abeloos; Lucas F. Neyt; Calix A. S. De Clercq



Distillation Codes and Applications to DoS Resistant Multicast Authentication  

Microsoft Academic Search

Abstract: We introduce distillation codes, a method for streamingand storing data. Like erasure codes, distillation codesallow information to be decoded from a sufficiently largequorum of symbols. In contrast to erasure codes, distillationcodes are robust against pollution attacks, a powerfulclass of denial of service (DoS) attacks in which adversariesinject invalid symbols during the decoding process.We examine applications of distillation codes to

Chris Karlof; Naveen Sastry; Yaping Li; Adrian Perrig; J. D. Tygar




Microsoft Academic Search

Palavras-chave : macroalgas, ficocolóides, carragenanas, FTIR-ATR, FT-Raman Resumo: As Carragenanas (E-407) constituem um dos principais aditivos usados pela indústria alimentar, como agentes gelificantes, emulsionantes, estabilizantes e espessantes. São ingredientes naturais, usados há várias décadas na área alimentar e são considerados como seguros, tendo obtido a classificação GRAS ( Generally Recognised As Safe ). Neste trabalho foram analisadas a percentagem de

Leonel Pereira; Alan T. Critchley; Ana M. Amado; Paulo J. A. Ribeiro-Claro


Epiderme dos segmentos foliares de Mauritia flexuosa L. f. (Arecaceae) em três fases de desenvolvimento  

Microsoft Academic Search

RESUMO São apresentados os dados anatômicos da epiderme dos segmentos foliares de Mauritia flexuosa L. f. (Arecaceae) em três fases do desenvolvimento. Os segmentos foliares foram analisados em toda a extensão do limbo. As células intercostais da epiderme das faces adaxial e abaxial evidenciam-se com paredes sinuosas, retangulares e orientadas longitudinalmente em relação ao eixo do segmento foliar com acentuada

Mahedy Araújo Bastos Passos; Maria Sílvia de Mendonça



On the impact of DoS attacks on Internet traffic characteristics and QoS  

Microsoft Academic Search

The Internet is on the way of becoming the universal communication network, and then needs to provide various services with guaranteed quality for all kinds of applications. Denial of service (DoS) attacks are then more efficient in a guaranteed multi-services network than in the \\




Colze de tennis (tendinosi epicondília externa): tractament esclerosant ecoguiat amb polidocanol. A propòsit de dos casos  

Microsoft Academic Search

Dos pacients (2 homes de 42 i 55 anys) amb tendinosi epicondília externa dolorosa van ser tractats mitjançant un tractament innovador que es basa en l'esclerosi amb Polidocanol, un agent esclerosant, ecoguiada amb Power Color (PC) mitjançant Doppler color de polidocanol, un agent esclerosant. Després del tractament va haver-hi una marcada reducció del dolor recollida mitjançant una escala analògica visual

Guillermo Álvarez Rey; Ignacio Álvarez Rey; Guillermo Álvarez Bustos




Microsoft Academic Search

Ameaçada de extinção e com baixa taxa reprodutiva, um dos fatores limitantes à reprodução da arara-azul Anodorhynchus hyacinthinus, no Pantanal é a escassez de cavidades em árvores. Além disso, no mesmo período de reprodução das araras-azuis outras espécies de aves estão se reproduzindo e a disputa pelos ninhos é grande. Para minimizar este fator, instalamos 70 ninhos artificiais, no período

Rua Klaus Sturk; Jd Mansur; Neiva Maria; R. Guedes; Torborg Berge; Vanessa M. B; Márcia M. Volpe; Carolina Ribas; Arara Azul


Low-Budget, Cost-Effective OCR: Optical Character Recognition for MS-DOS Micros.  

ERIC Educational Resources Information Center

Discusses optical character recognition (OCR) for use with MS-DOS microcomputers. Cost effectiveness is considered, three types of software approaches to character recognition are explained, hardware and operation requirements are described, possible library applications are discussed, future OCR developments are suggested, and a list of OCR…

Perez, Ernest



Análise dos Conceitos Astronômicos Apresentados por Professores de Algumas Escolas Estaduais Brasileiras  

NASA Astrophysics Data System (ADS)

A razão para o desenvolvimento deste trabalho baseia-se no fato de que muitos professores da Educação Básica (EB) não lidam com conceitos relacionados à astronomia, e quando o fazem eles simplesmente seguem livros didáticos que podem conter erros conceituais. Como é de conhecimento geral a astronomia é um dos conteúdos a serem ensinados na EB fazendo parte dos Parâmetros Curriculares Nacionais e das Propostas Curriculares do Estado de São Paulo, mas é um fato, que vários pesquisadores apontam, a existência de muitos problemas no ensino da astronomia. Com o propósito de minimizar algumas dessas deficiências foi realizado um trabalho de pesquisa com a utilização de questionários pré e pós pesquisa, para tanto foi desenvolvido um Curso de Extensão Universitária para professores da Diretoria de Ensino Regional (DE) que abrange Mauá, Ribeirão Pires e Rio Grande da Serra (no Estado de São Paulo) com os seguintes objetivos: levantar concepções alternativas; subsidiar os professores por meio de palestras, debates e workshops, e verificar o sucesso da aprendizagem após o curso, adotando-se como referência, para a análise dos resultados, os dicionários de Língua Portuguesa (FERREIRA, 2004) e Enciclopédico de Astronomia e Astronáutica (MOUR?O, 1995). Portanto, dezesseis questões foram aplicadas antes e após o curso, assim pode-se verificar após a pesquisa que 100,0% dos professores sabiam os nomes das fases da Lua, 97,0% entenderam que o Sistema Solar é composto por oito planetas, 78,1% foram capazes de explicar como ocorre um eclipse lunar, um eclipse solar e um solstício, 72,7% sabiam como explicar a ocorrência das estações do ano; 64,5% explicaram corretamente a ocorrência do equinócio, 89,7% foram capazes de definir adequadamente o termo cometa; 63,6% definiram asteróide, 54,5% meteoro, 58,1% galáxia, e 42,4% planeta. Os resultados obtidos indicam uma aprendizagem significativa por parte dos participantes.

Voelzke, Marcos Rincon; Gonzaga, Edson Pereira



Análise cinemática bi-dimensional dos núcleos de NGC 4051 e NGC 4941  

NASA Astrophysics Data System (ADS)

Estudos recentes da cinemática da região dentro de 1 kpc do núcleo de galaxias Seyfert próximas usando espectroscopia de fenda longa com alta resolução espacial (~ 100 pc ou melhores) encontraram uma queda na dispersão de velocidades nas regiões centrais dentro de um raio de ~ 300 pc do núcleo. Essa queda vem sendo tentativamente explicada por um cenário evolutivo em que um evento de formação estelar recente cria as estrelas da região central em um disco de dimensões 300 pc. Desde sua criação, tais estrelas não tiveram tempo de "virializar", ou seja, seguir a distribuição radial de dispersões de velocidades determinada pelo campo gavitacional da galáxia e, portanto, a dispersão de velocidades medida nessa região do bojo acaba sendo menor do que a dispersão medida nas vizinhanças. No presente trabalho investigamos a cinemática estelar no núcleo das galáxias Seyfert NGC 4051 e NGC 4941 usando o tripleto do Ca ii (8500 Å) em absorção. Os dados foram obtidos com o IFU GMOS no telescópio Gemini. O elemento de resolução espacial nas galáxias é da ordem de 30 pc. No intervalo espectral coberto pelo espectrografo a linha [S iii] (9068 Å) também é visível, o que permite estudar a cinemática do gás na mesma região. Serão apresentados mapas bi-dimensionais da velocidade e dispersão de velocidades das estrelas e do gás, além de imagens na linha [S iii] que mapeia o gás de alta excitação.

Barbosa, F. K. B.; Storchi-Bermagnn, T.; Schmitt, H. R.; Cid Fernandes, R.; Winge, C.



First report of White spot syndrome virus in farmed and wild penaeid shrimp from lagoa dos patos estuary, southern brazil.  


In this study, we detected White spot syndrome virus (WSSV) in wild Farfantepenaeus paulensis collected in the Lagoa dos Patos estuary and cultivated Litopenaeus vannamei. This is the first report of WSSV in F. paulensis from Lagoa dos Patos and farmed L. vannamei shrimps in Rio Grande do Sul. PMID:24031739

Cavalli, Lissandra Souto; Romano, Luis Alberto; Marins, Luis Fernando; Abreu, Paulo César



Determinação espectrométrica dos flavonóides das folhas de Maytenus (Celastraceae) e de Passiflora (Passifloraceae) e comparação com método CLAE-UV  

Microsoft Academic Search

RESUMO: Este trabalho apresenta uma modificação dos procedimentos descritos nas Farmacopéias Francesa e Européia para a análise de flavonoides de Passiflora incarnata L., Passifloraceae, por espectrometria UV-Visível e propõe a sua aplicação na determinação dos flavonoides totais das folhas da espinheira-santa (Maytenus aquifolium Mart. e Maytenus ilicifolia (Schrad.) Planch., Celastraceae) e do maracujá (Passiflora edulis Sims. e Passiflora alata Curtis,

Regina de A. O. Chabariberi; Alessandra C. S. Pozzi; Maria Luiza Zeraik; Janete H. Yariwake




Microsoft Academic Search

Foi instalado um teste de procedência e progênie de Liquidambar styraciflua L. em Agudos, SP, em solo de areia quartzosa. Os materiais genéticos foram fornecidos pelo Oxford Forestry Institute, incluindo doze procedências da Guatemala, Honduras, Nicarágua, México e dos Estados Unidos, sendo testados juntamente com uma testemunha local, com duas a dez progênies por procedência. Medições efetuadas dos quatro até

Jarbas Y. Shimizu; Ivana H. Z. Spir


Observational Assessment of Preschool Disruptive Behavior, Part II: Validity of the Disruptive Behavior Diagnostic Observation Schedule (DB-DOS)  

ERIC Educational Resources Information Center

A study is conducted to determine whether the multidomain, multicontext Disruptive Behavior Diagnostic Observation Schedule (DB-DOS) is a valid observational method for assessing disruptive behavior of preschool children. It is concluded that the DB-DOS is a valid method for a direct observational assessment of clinically significant disruptive…

Wakschlag, Lauren S.; Briggs-Gowan, Margaret J.; Hill, Carri; Danis, Barbara; Leventhal, Bennett L.; Keenan, Kate; Egger, Helen L.; Cicchetti, Domenic; Burns, James; Carter, Alice S.



First report of White spot syndrome virus in farmed and wild penaeid shrimp from lagoa dos patos estuary, southern brazil  

PubMed Central

In this study, we detected White spot syndrome virus (WSSV) in wild Farfantepenaeus paulensis collected in the Lagoa dos Patos estuary and cultivated Litopenaeus vannamei. This is the first report of WSSV in F. paulensis from Lagoa dos Patos and farmed L. vannamei shrimps in Rio Grande do Sul.

Cavalli, Lissandra Souto; Romano, Luis Alberto; Marins, Luis Fernando; Abreu, Paulo Cesar




Microsoft Academic Search

RESUMO - Esta pesquisa teve por objetivo avaliar os riscos de acidentes em atividades de poda de árvores na arborização urbana do Distrito Federal. A coleta de dados foi feita com a aplicação de um questionário em forma de entrevista individual. Responderam ao questionário 94% dos funcionários, sendo 92% do total dos operadores de motosserra e 95% do total de

Nilton César Fiedler; Eduardo Hideki Sone; Ailton Teixeira do Vale; José de Fátima Juvêncio; Luciano José Minette


Stable Fly Project in Campo Grande, Brazil  

Technology Transfer Automated Retrieval System (TEKTRAN)

Andrew Li, Jerry Hogsette, and Adalberto Pérez de León, all USDA-ARS, and Lane Foil, LSU, are collaborating as consultants on an Embrapa-funded research project for the control of large stable fly populations associated with sugar cane production in Brazil. Our Brazilian counterpart, Dr. Paulo Cança...


Protecting Web Services against DoS Attacks: A Case-Based Reasoning Approach  

NASA Astrophysics Data System (ADS)

The real-time detection is a key factor to detect and block DoS attacks within Web services. DoS attacks can be generated for different techniques that take advantage of points vulnerable within Web services. This paper describes a novel proposal based on a real time agent to classify user requests and detect and block malicious SOAP messages. The classification mechanism is based on a Case-Base Reasoning (CBR) model, where the different CBR phases are time bounded. Within the reuse phase of the CBR cycle is incorporated a mixture of experts to choose the most suitable technique of classification depending on the feature of the attack and the available time to solve the classification. A prototype of the architecture was developed and the results obtained are presented in this study.

Pinzón, Cristian; de Paz, Juan F.; Zato, Carolina; Pérez, Javier


Mitigating DoS Attacks on the Paging Channel by Efficient Encoding in Page Messages  

NASA Astrophysics Data System (ADS)

Paging is an important mechanism for network bandwidth efficiency and mobile terminal battery life. It has been widely adopted by mobile networks, such as cellular networks, WiMax, and Mobile IP. Due to certain mechanisms for achieving paging efficiency and the convergence of wireless voice and data networks, the paging channel is vulnerable to inexpensive DoS attacks. To mitigate these attacks, we propose to leverage the knowledge of the user population size, the slotted nature of the paging operation, and the quick paging mechanism to reduce the length of terminal identifiers. In the case of a CDMA2000 system, we can reduce each identifier from 34 bits down to 7 bits, effectively doubling the paging channel capacity. Moreover, our scheme incurs no paging latency, missed pages, or false pages. Using a simulator and data collected from a commercial cellular network, we demonstrate that our scheme doubles the cost for DoS attackers.

Cai, Liang; Maganis, Gabriel; Zang, Hui; Chen, Hao


Determinação de elementos próprios dos asteróides troianos: comparação entre as teorias semi-analítica e sintética  

NASA Astrophysics Data System (ADS)

Além do cálculo semi-analítico de elementos próprios dos asteróides Troianos (Beaugé & Roig 2001, Icarus 153, 391), recentemente foi apresentado um novo conjunto destes elementos próprios determinado através de uma teoria sintética (Knenezevic & Milani 2003, comunicação pessoal). As bases de dados contendo estas determinações estão disponiveis na pagina web do Asteroid Dynamical Site ( Nesta comunicação apresentamos os primeiros resultados de um estudo comparativo entre ambos conjuntos de elementos próprios, analisando suas vantagens e desvantagens, assim como os limites de precisão de cada conjunto. Mostramos que os elementos próprios sintéticos são mais precisos que os smi-analíticos para grandes amplitudes de libração do ângulo s = l-lJup, embora acontece o contrario para os corpos cuja amplitude de libração é muito pequena. Finalmente discutimos a influencia destes erros na determinação de familias de asteroides e da estrutura resonante em torno dos pontos Lagrangeanos L4 e L5.

Roig, F.; Beaugé, C.



Slave Communities and Pottery Variability in Western Brazil: The Plantations of Chapada dos Guimarães  

Microsoft Academic Search

In the region of Chapada dos Guimarães, Western Brazil, planters relied heavily on slave labor during the eighteenth and nineteenth\\u000a centuries. In this article, we examine the locally produced pottery found on slaves contexts in five rural sites of this region.\\u000a Based in data from probate inventories and the pottery decorative variability we suggest that slaves used decorated pottery\\u000a to

Marcos André Torres de Souza; Luís Cláudio Pereira Symanski



A Comparison of Three LISP Interpreters for MS-DOS-Based Microcomputers  

PubMed Central

We report a comparison of three commercially available LISP interpreters running on MS-DOS-based microcomputers. Marked differences were found between the different products' memory addressing abilities, error handling and debugging facilities. Editing tools, tutoring environments, windowing, graphic capabilities, operating system and port call facilities are also contrasted. Speed was tested via a group of LISP functions (benchmarks) that attempt to isolate list manipulation, iteration, function calling, recursion and mathematical calculation performance.

Kahane, Stephen N.; Johannes, Richard S.



Sm-Nd-Pu timepieces in the Angra DOS Reis meteorite  

Microsoft Academic Search

Isotope ratios and age estimations are presented for the ultramafic pyroxenite Angra dos Reis meteorite. A pyroxene-phosphate internal isochron age of 4.55 plus or minus 0.04 eons was obtained, in agreement with reported Pb-Pb ages. It is suggested that Sm-146 decay led to an increase in the ratio of Nd-142 to Nd-144 in pyroxene, which is greater than the ratio

G. W. Lugmair; K. Marti



Age and isotopic relationships among the angrites Lewis Cliff 86010 and Angra DOS Reis  

Microsoft Academic Search

The paper presents results of a wide-ranging isotopic investigation of the the Antarctic angrite LEW-86010 (LEW), and reassesses the type angrite Angra dos Reis (ADOR) in order to obtain precise radiometric ages and initial Sr isotopic compositions, and to search for the erstwhile presence of the short-lived nuclei Sm-146 and Al-26 via their daughter products. The isotopic compositions of Sm,

G. W. Lugmair; S. J. G. Galer



An MS-DOS-based program for analyzing plutonium gamma-ray spectra  

Microsoft Academic Search

A plutonium gamma-ray analysis system that operates on MS-DOS-based computers has been developed for the International Atomic Energy Agency (IAEA) to perform in-field analysis of plutonium gamma-ray spectra for plutonium isotopics. The program titled IAEAPU consists of three separate applications: (1) a data-transfer application for transferring spectral data from a CICERO multichannel analyzer to a binary data file, (2) a

W. D. Ruhter; W. M. Buckley



An MS-DOS-based program for analyzing plutonium gamma-ray spectra  

Microsoft Academic Search

A plutonium gamma-ray analysis system that operates on MS-DOS-based computers has been developed for the International Atomic Energy Agency (IAEA) to perform in-field analysis of plutonium gamma-ray spectra for plutonium isotopics. The user interacts with the system by means of menus and screens that allow the user to select various applications and to enter information pertinent to a measurement. This

W. D. Ruhter; W. M. Buckley



An MS-DOS-based program for analyzing plutonium gamma-ray spectra  

Microsoft Academic Search

A plutonium gamma-ray analysis system that operates on MS-DOS-based computers has been developed for the International Atomic Energy Agency (IAEA) to perform in-field analysis of plutonium gamma-ray spectra for plutonium isotopics. The program titled IAEAPU consists of three separate applications: a data-transfer application for transferring spectral data from a CICERO multichannel analyzer to a binary data file, a data-analysis application

W. D. Ruhter; W. M. Buckley



Coordination of DNA Replication and Histone Modification by the Rik1-Dos2 Complex  

PubMed Central

Histone modification marks play an important role in many chromatin processes1,2. During DNA replication, both heterochromatin and euchromatin are disrupted ahead of the replication fork and then reassembled into their original epigenetic states behind the fork3,4. How the histone marks are faithfully inherited during each generation is still poorly understood. In fission yeast RNA interference (RNAi)-mediated histone methylation is cell-cycle regulated. Centromere repeats are transiently transcribed at S phase and processed into small interference RNAs (siRNAs) by RITS and RDRC complexes5-7. The small RNAs, in concert with silencing factors, including Dos1/Clr8, Dos2/Clr7, Rik1 and Lid2, promote heterochromatic H3K9 methylation by a histone methyltransferase, Clr48-13. H3K9 methylation serves as a binding site for Swi6, a structural and functional homolog of metazoan Heterochromatin Protein 1 (HP1)14. Here we characterize a silencing complex, which contains Dos2, Rik1, Mms19, and Cdc20 (DNA polymerase epsilon). The complex regulates RNA Pol II activity in heterochromatin, and is required for DNA replication and heterochromatin assembly. Our findings provide a molecular link between DNA replication and histone methylation, shedding light on how epigenetic marks are transmitted during each cell cycle.

Li, Fei; Martienssen, Rob; Cande, W. Zacheus



Coordination of DNA replication and histone modification by the Rik1-Dos2 complex.  


Histone modification marks have an important role in many chromatin processes. During DNA replication, both heterochromatin and euchromatin are disrupted ahead of the replication fork and are then reassembled into their original epigenetic states behind the fork. How histone marks are accurately inherited from generation to generation is still poorly understood. In fission yeast (Schizosaccharomyces pombe), RNA interference (RNAi)-mediated histone methylation is cell cycle regulated. Centromeric repeats are transiently transcribed in the S phase of the cell cycle and are processed into short interfering RNAs (siRNAs) by the complexes RITS (RNA-induced initiation of transcriptional gene silencing) and RDRC (RNA-directed RNA polymerase complex). The small RNAs together with silencing factors-including Dos1 (also known as Clr8 and Raf1), Dos2 (also known as Clr7 and Raf2), Rik1 and Lid2-promote heterochromatic methylation of histone H3 at lysine 9 (H3K9) by a histone methyltransferase, Clr4 (refs 8-13). The methylation of H3K9 provides a binding site for Swi6, a structural and functional homologue of metazoan heterochromatin protein 1 (HP1). Here we characterize a silencing complex in fission yeast that contains Dos2, Rik1, Mms19 and Cdc20 (the catalytic subunit of DNA polymerase-?). This complex regulates RNA polymerase II (RNA Pol II) activity in heterochromatin and is required for DNA replication and heterochromatin assembly. Our findings provide a molecular link between DNA replication and histone methylation, shedding light on how epigenetic marks are transmitted during each cell cycle. PMID:21725325

Li, Fei; Martienssen, Rob; Cande, W Zacheus



The Intraplate Seismogenic Zone of Porto dos Gauchos in the Amazon Craton, Brazil  

NASA Astrophysics Data System (ADS)

The Porto dos Gauchos Seismogenic Zone (PGSZ), in the center north of Mato Grosso State, in the contact between the southern Amazonian Craton and northern Parecis Basin, represents one of the most important area of seismic activity in Brazil, with the largest magnitude ever observed in the stable continent of the South America plate (6.2 mb on January 31, 1955). Focal mechanism studies indicated a pure reverse faulting regime with compressional SHmax. oriented in SE-NW direction. After the 1955 earthquake, located in Serra do Tombador, a recurrent seismicity has been detected in Porto dos Gauchos, 100 km northeast of Serra do Tombador. No recent events have been detected in the area of the 1955 epicenter, suggesting a long recurrence time or mislocation of Serra do Tombador earthquake. The Porto dos Gauchos recurrent seismicity has been observed since 1959, when a 4.5 macroseismic estimated magnitude was felt by local inhabitants settled in that remote area two years earlier. In subsequent years, with deployment of regional stations in Brazilian Amazon region earthquakes were detected in 1981 (3.8 mb), 1989 (3.3 mb), 1993 (3.8 mb), 1996 (4.4 mb), 1997 (3.3 mb), and finally on March 10, 1998 (5.1 mb). The aftershocks of 1998 main shock were studied with a local network with up to eight 3- component stations. Such network detected more than 2500 events until December of 2002, when the network was deactivated, but only 100 were accurately located. Based on this set of events and a controlled source experiment we determined a 1-D velocity model for the area, a composite focal mechanism with P wave polarities, spectral analysis studies to estimate the source dimension, stress drop and moment magnitudes for the main shock and some others events of the set. On March 23, 2005 another shock occurred in the same seismogenic area of Porto dos Gauchos, with magnitude 4.7 to 5.0. One week later five stations were installed again to monitor the aftershock activity, detecting more than 2000 events in three months. Hypocentral determination, with different hypocentral location programs (Hypocenter, Hypo71, Hypoinverse, Velest and NonLinLoc) and a composite focal mechanism indicated the same source location and similar fault regime (dextral transcurrent fault for both 1998 and 2005 sequences). In this work, besides a brief review of the seismotectonic of the PGSZ we intend to present additional results of better constrained composite focal mechanisms including the P, SH, and SV amplitudes ratios for the two sequences and an attempt to get focal mechanism solution for the main shock of March 1998 based on regional stations.

Barros, L. V.; Assumpcao, M. S.; Quintero, R. Q.



Quality control and assurance for validation of DOS/I measurements  

NASA Astrophysics Data System (ADS)

Ongoing multi-center clinical trials are crucial for Biophotonics to gain acceptance in medical imaging. In these trials, quality control (QC) and assurance (QA) are key to success and provide "data insurance". Quality control and assurance deal with standardization, validation, and compliance of procedures, materials and instrumentation. Specifically, QC/QA involves systematic assessment of testing materials, instrumentation performance, standard operating procedures, data logging, analysis, and reporting. QC and QA are important for FDA accreditation and acceptance by the clinical community. Our Biophotonics research in the Network for Translational Research in Optical Imaging (NTROI) program for breast cancer characterization focuses on QA/QC issues primarily related to the broadband Diffuse Optical Spectroscopy and Imaging (DOS/I) instrumentation, because this is an emerging technology with limited standardized QC/QA in place. In the multi-center trial environment, we implement QA/QC procedures: 1. Standardize and validate calibration standards and procedures. (DOS/I technology requires both frequency domain and spectral calibration procedures using tissue simulating phantoms and reflectance standards, respectively.) 2. Standardize and validate data acquisition, processing and visualization (optimize instrument software-EZDOS; centralize data processing) 3. Monitor, catalog and maintain instrument performance (document performance; modularize maintenance; integrate new technology) 4. Standardize and coordinate trial data entry (from individual sites) into centralized database 5. Monitor, audit and communicate all research procedures (database, teleconferences, training sessions) between participants ensuring "calibration". This manuscript describes our ongoing efforts, successes and challenges implementing these strategies.

Cerussi, Albert; Durkin, Amanda; Kwong, Richard; Quang, Timothy; Hill, Brian; Tromberg, Bruce J.; MacKinnon, Nick; Mantulin, William W.



Crystal Structures of the Response Regulator DosR From Mycobacterium Tuberculosis Suggest a Helix Rearrangement Mechanism for Phosphorylation Activation  

SciTech Connect

The response regulator DosR is essential for promoting long-term survival of Mycobacterium tuberculosis under low oxygen conditions in a dormant state and may be responsible for latent tuberculosis in one-third of the world's population. Here, we report crystal structures of full-length unphosphorylated DosR at 2.2 {angstrom} resolution and its C-terminal DNA-binding domain at 1.7 {angstrom} resolution. The full-length DosR structure reveals several features never seen before in other response regulators. The N-terminal domain of the full-length DosR structure has an unexpected ({beta}{alpha}){sub 4} topology instead of the canonical ({beta}{alpha}){sub 5} fold observed in other response regulators. The linker region adopts a unique conformation that contains two helices forming a four-helix bundle with two helices from another subunit, resulting in dimer formation. The C-terminal domain in the full-length DosR structure displays a novel location of helix {alpha}10, which allows Gln199 to interact with the catalytic Asp54 residue of the N-terminal domain. In contrast, the structure of the DosR C-terminal domain alone displays a remarkable unstructured conformation for helix {alpha}10 residues, different from the well-defined helical conformations in all other known structures, indicating considerable flexibility within the C-terminal domain. Our structures suggest a mode of DosR activation by phosphorylation via a helix rearrangement mechanism.

Wisedchaisri, G.; Wu, M.; Sherman, D.R.; Hol, W.G.J.



Measured oxygen fugacities of the Angra dos Reis achondrite as a function of temperature  

USGS Publications Warehouse

Measurements of the oxygen fugacity (f{hook}O2) as a function of temperature (T) were made on an interior bulk sample of the cumulate achondrite, Angra dos Reis. Data clustered between the f{hook}O2-T relationship of the iron-wu??stite assemblage and 1.2 log atm units above iron-wu??stite. Interpretation of the data indicates that, throughout most of the cooling history of the meteorite, f{hook}O2 values were defined by equilibria involving iron-bearing species at values close to the f{hook}O2 of the assemblage iron-wu??stite. Measured f{hook}O2 data are compatible with crystallization and cooling at pressures greater than 50 bars. ?? 1977.

Brett, R.; Stephen, Huebner, J.; Sato, M.



An MS-DOS-based program for analyzing plutonium gamma-ray spectra  

SciTech Connect

A plutonium gamma-ray analysis system that operates on MS-DOS-based computers has been developed for the International Atomic Energy Agency (IAEA) to perform in-field analysis of plutonium gamma-ray spectra for plutonium isotopics. The program titled IAEAPU consists of three separate applications: a data-transfer application for transferring spectral data from a CICERO multichannel analyzer to a binary data file, a data-analysis application to analyze plutonium gamma-ray spectra, for plutonium isotopic ratios and weight percents of total plutonium, and a data-quality assurance application to check spectral data for proper data-acquisition setup and performance. Volume 3 contains the software listings for these applications.

Ruhter, W.D.; Buckley, W.M.



Cell cycle-dependent deposition of CENP-A requires the Dos1/2-Cdc20 complex  

PubMed Central

Centromeric histone CENP-A, a variant of canonical histone H3, plays a central role in proper chromosome segregation. Loading of CENP-A at centromeres is cell cycle-regulated: parental CENP-A is deposited at centromeres during S phase, whereas newly synthesized CENP-A is deposited during later stages of the cell cycle. The mechanisms involved in deposition of CENP-A at centromeres during S phase remain poorly understood. In fission yeast, loading of CENP-A during S phase is regulated by the GATA-type factor, Ams2. Here we show that the Dos1/2-Cdc20 complex, previously characterized as a silencing complex essential for inheritance of H3K9 methylation during S phase, is also required for localization of CENP-Acnp1 at centromeres at this stage. Disruption of Dos1 (also known as Raf1/Clr8/Cmc1), Dos2 (also known as Raf2/Clr7/Cmc2), or Cdc20, a DNA polymerase epsilon subunit, results in dissociation of CENP-A from centromeres and mislocalization of the protein to noncentromeric sites. All three mutants display spindle disorganization and mitotic defects. Inactivation of Dos1 or Cdc20 also results in accumulation of noncoding RNA transcripts from centromeric cores, a feature common to mutants affecting kinetochore integrity. We further find that Dos1 physically associates with Ams2 and is required for the association of Ams2 with centromeric cores during S phase. Finally, we show that Dos2 associates with centromeric cores during S phase and that its recruitment to centromeric cores depends on Cdc20. This study identifies a physical link between DNA replication and CENP-A assembly machinery and provides mechanistic insight into how CENP-A is faithfully inherited during S phase.

Gonzalez, Marlyn; He, Haijin; Sun, Siyu; Li, Chen; Li, Fei



Structural Insight into the Heme-based Redox Sensing by DosS from Mycobacterium tuberculosis*S?  

PubMed Central

Mycobacterium tuberculosis is thought to undergo transformation into its non-replicating persistence state under the influence of hypoxia or nitric oxide (NO). This transformation is thought to be mediated via two sensor histidine kinases, DosS and DosT, each of which contains two GAF domains that are responsible for detecting oxygen tension. In this study we determined the crystal structures of the first GAF domain (GAF-A) of DosS, which shows an interaction with a heme. A b-type heme was embedded in a hydrophobic cavity of the GAF-A domain and was roughly perpendicular to the ?-sheet of the GAF domain. The heme iron was liganded by His-149 at the proximal heme axial position. The iron, in the oxidized form, was six-coordinated with a water molecule at the distal position. Upon reduction, the iron, in ferrous form, was five-coordinated, and when the GAF domain was exposed to atmospheric O2, the ferrous form was oxidized to generate the Met form rather than a ferrous O2-bound form. Because the heme is isolated inside the GAF domain, its accessibility is restricted. However, a defined hydrogen bond network found at the heme site could accelerate the electron transferability and would explain why DosS was unable to bind O2. Flavin nucleotides were shown to reduce the heme iron of DosS while NADH was unable to do so. These results suggest that DosS is a redox sensor and detects hypoxic conditions by its reduction.

Cho, Ha Yeon; Cho, Hyo Je; Kim, Young Min; Oh, Jeong Il; Kang, Beom Sik



Buffer zone monitoring plan for the Dos Rios subdivision, Gunnison, Colorado  

SciTech Connect

This report presents a plan for water quality monitoring at the Dos Rios subdivision (Units 2, 3, and the Island Unit) that is intended to satisfy the informational needs of residents who live southwest (downgradient) of the former Gunnison processing site. Water quality monitoring activities described in this report are designed to protect the public from residual contamination that entered the ground water as a result of previous uranium milling operations. Requirements presented in this monitoring plan are also included in the water sampling and analysis plan (WSAP) for the Gunnison Uranium Mill Tailings Remedial Action (UMTRA) Project site. The Gunnison WSAP is a site-specific document prepared by the U.S. Department of Energy (DOE) that provides background, guidance, and justification for future ground water sampling and analysis activities for the UMTRA Project Gunnison processing and disposal sites. The WSAP will be updated annually, as additional water quality data are collected and interpreted, to provide ongoing protection for public health and the environment.




T.D.S. spectroscopic databank for spherical tops: DOS version  

NASA Astrophysics Data System (ADS)

T.D.S. (Traitement de Donnees Spectroscopiques or Tomsk-Dijon-Spectroscopy project) is a computer package concerned with high resolution spectroscopy of spherical top molecules like CH4, CF4, SiH4, SiF4, SnH4, GeH4, SF6, etc. T.D.S. contains information, fundamental spectroscopic data (energies, transition moments, spectroscopic constants) recovered from comprehensive modeling and simultaneous fitting of experimental spectra, and associated software written in C. The T.D.S. goal is to provide an access to all available information on vibration-rotation molecular states and transitions including various spectroscopic processes (Stark, Raman, etc.) under extended conditions based on extrapolations of laboratory measurements using validated theoretical models. Applications for T.D.S. may include: education/training in molecular physics, quantum chemistry, laser physics; spectroscopic applications (analysis, laser spectroscopy, atmospheric optics, optical standards, spectroscopic atlases); applications to environment studies and atmospheric physics (remote sensing); data supply for specific databases; and to photochemistry (laser excitation, multiphoton processes). The reported DOS-version is designed for IBM and compatible personal computers.

Tyuterev, Vl. G.; Babikov, Yu. L.; Tashkun, S. A.; Perevalov, V. I.; Nikitin, A.; Champion, J.-P.; Wenger, Ch.; Pierre, C.; Pierre, G.; Hilico, J.-C.




SciTech Connect

A large sample of Herbig Ae/Be (HAeBe) candidates, distributed in different Galactic regions south to declination +30 deg., were identified by the Pico dos Dias Survey (a search for young stellar objects based on IRAS colors). Most of the candidates are nearby or associated with star-forming clouds, but several others are considered isolated objects. Aiming to verify the young nature of 93 HAeBe candidates, we searched for additional information that could be useful to confirm if they are pre-main-sequence (PMS) stars or evolved objects, which coincidentally show similar IRAS colors. By adopting a spectral index that is related to the amount of infrared excess and the shape of the spectral energy distribution, we have classified the sample according to three groups, which are analyzed on the basis of (1) circumstellar luminosity; (2) spatial distribution; (3) optical polarization; (4) near-infrared colors; (5) stellar parameters (mass, age, effective temperature); and (5) intensity of emission lines. Our analysis indicates that only 76% of the studied sample, mainly the group with intermediate to low levels of circumstellar emission, can be more confidently considered PMS stars. The nature of the remaining stars, which are in the other group that contains the highest levels of infrared excess, remains to be confirmed. They share the same characteristics of evolved objects, requiring complementary studies in order to correctly classify them. At least seven objects show characteristics typical of post-asymptotic giant branch or proto-planetary nebulae.

Sartori, Marilia J. [Laboratorio Nacional de Astrofisica/MCT, Rua Estados Unidos 154, 37504-364 Itajuba, MG (Brazil); Gregorio-Hetem, Jane [Universidade de Sao Paulo, IAG, Rua do Matao 1226, 05508-900 Sao Paulo, SP (Brazil); Rodrigues, Claudia V. [Instituto Nacional de Pesquisas Espaciais/MCT, Av. dos Astronautas 1758, 12227-010 Sao Jose dos Campos, SP (Brazil); Annibal Hetem [Fundacao Santo Andre, FAENG, Rua Principe de Gales 821, 09060-650 Santo Andre, SP (Brazil); Batalha, Celso [Evergreen Valley College, 3095 Yerba Buena Rd., San Jose, CA, 95135 (United States)], E-mail:



Avaliação do desempenho dos novos instrumentos de política de garantia de preços agrícolas de 2004 a 2007  

Microsoft Academic Search

O objetivo deste artigo é avaliar o desempenho dos instrumentos da Política de Garantia de Preços Agrícolas (PGPA), criados a partir de 2004, em termos de produtos e regiões. Os contratos de opção privada que começaram a ser criados a partir de 2004 possuem característica de transferir à iniciativa privada a responsabilidade de abastecer áreas previamente determinadas. O PEPRO -

Carlos Jose Caetano Bacha; Carlos Eduardo Caldarelli




Microsoft Academic Search

Un total de 50 muestras de hisopados nasales de becerros. con enfermedad respiratoria procedentes de dos fincas ubicadas en el estado Guárico. fueron analizados por estudios bacteriológicos. Los agentes bacterianos más frecuentes fueron Pasteurella multocida (28%), Streptococcus spp. hemolíticos (22%), Klebsiella pneumoniae (18%), Corynebacterium spp. (14%), Staphylococcus epidermidis (6%), Bacillus spp. (4%), Escherichia coli y Pseudomonas aeruginosa (2%). respectivamente. Se

Yuraima Pineda; Salin Mora; Jorge Santander


MS-DOS-based program for analyzing plutonium gamma-ray spectra. Volume 1. Data-analysis methodology and software.  

National Technical Information Service (NTIS)

A plutonium gamma-ray analysis system that operates on MS-DOS-based computers has been developed for the International Atomic Energy Agency (IAEA) to perform in-field analysis of plutonium gamma-ray spectra for plutonium isotopics. The user interacts with...

W. D. Ruhter W. M. Buckley



Queda dos homic?dios em S?o Paulo, Brasil: uma an?lise descritiva  

PubMed Central

Objetivo Descrever a evolução da mortalidade por homicídios no Município de São Paulo segundo tipo de arma, sexo, raça ou cor, idade e áreas de exclusão/inclusão social entre 1996 e 2008. Métodos Estudo ecológico de série temporal. Os dados sobre óbitos ocorridos no Município foram coletados da base de dados do Programa de Aprimoramento das Informações sobre Mortalidade, seguindo a Classificação Internacional de Doenças, Décima Revisão (CID-10). Foram calculadas as taxas de mortalidade por homicídio (TMH) para a população total, por sexo, raça ou cor, faixa etária, tipo de arma e área de exclusão/inclusão social. As TMH foram padronizadas por idade pelo método direto. Foram calculados os percentuais de variação no período estudado. Para as áreas de exclusão/inclusão social foram calculados os riscos relativos de morte por homicídio. Resultados As TMH apresentaram queda de 73,7% entre 2001 e 2008. Foi observada redução da TMH em todos os grupos analisados, mais pronunciada em homens (?74,5%), jovens de 15 a 24 anos (?78,0%) e moradores de áreas de exclusão social extrema (?79,3%). A redução ocorreu, sobretudo, nos homicídios cometidos com armas de fogo (?74,1%). O risco relativo de morte por homicídio nas áreas de exclusão extrema (tendo como referência áreas com algum grau de exclusão social) foi de 2,77 em 1996, 3,9 em 2001 e 2,13 em 2008. Nas áreas de alta exclusão social, o risco relativo foi de 2,07 em 1996 e 1,96 em 2008. Conclusões Para compreender a redução dos homicídios no Município, é importante considerar macrodeterminantes que atingem todo o Município e todos os subgrupos populacionais e microdeterminantes que atuam localmente, influenciando de forma diferenciada os homicídios com armas de fogo e os homicídios na população jovem, no sexo masculino e em residentes em áreas de alta exclusão social.

Peres, Maria Fernanda Tourinho; Vicentin, Diego; Nery, Marcelo Batista; de Lima, Renato Sergio; de Souza, Edinilsa Ramos; Cerda, Magdalena; Cardia, Nancy; Adorno, e Sergio



15-Deoxyspergualin (15DOS) for therapy in an animal model of multiple sclerosis (MS): Disease modifying activity on acute and chronic relapsing experimental allergic encephalomyelitis (EAE)  

Microsoft Academic Search

We examined the therapeutic effect of 15-DOS in the two models of acute and chronic relapsing EAE in Lewis rats. In the first model adult rats developed an acute severe EAE and by day 16 all animals died. Lewis rats treated with 15-DOS showed a delayed and reduced onset of clinical symptoms and mortality was prevented. In the second model

H. U. Schorlemmer; F. R. Seiler



Conhecimento dos profissionais de Saúde em relação às formas de cobrança em Unidade de Pronto Atendimento Health professionals knowledge of medical billing standards in an Emergency Department  

Microsoft Academic Search

rESUMo objetivos: Conhecer o perfil demográfico e profissional dos colaboradores da Unidade de Pronto Atendimento; verificar o conhecimento desses, referente aos preços dos medicamentos, materiais, procedimentos e os elementos que compõem a Taxa de Assistência Integrada. Métodos: Pesquisa descritiva, exploratória e prospectiva, de abordagem quantitativa. A amostra foi composta por 123 respondentes: 32 (26%) médicos, 30 (24,4%) enfermeiros e 61

Renata Donato Janeri; Milka de Almeida; Miriam Rodrigues de Medeiros; Sarah Munhoz


Cross-Reactive Immunity to Mycobacterium tuberculosis DosR Regulon-Encoded Antigens in Individuals Infected with Environmental, Nontuberculous Mycobacteria? †  

PubMed Central

Mycobacterium tuberculosis DosR regulon-encoded antigens are highly immunogenic in M. tuberculosis-infected humans and are associated with latent tuberculosis infection. We have investigated the hypothesis that infection with or exposure to nontuberculous mycobacteria (NTM) can induce cross-reactive immunity to M. tuberculosis DosR regulon-encoded antigens since responsiveness has been observed in non-M. tuberculosis-exposed but purified protein derivative-responsive individuals. M. tuberculosis DosR regulon-encoded antigen-specific T-cell responses were studied in peripheral blood mononuclear cells (PBMCs) of NTM-infected/exposed individuals. BLASTP was used to determine the presence of M. tuberculosis DosR regulon-encoded protein orthologs among environmental mycobacteria and nonmycobacteria. Significant gamma interferon production was observed in PBMCs from NTM-infected/exposed individuals in response to M. tuberculosis DosR regulon-encoded antigens. DosR regulon-encoded protein orthologs were prominently present in tuberculous and environmental mycobacteria and surprisingly also in nonmycobacteria. The ubiquitous presence of the highly conserved DosR master regulator protein Rv3133c suggests that this is a general adaptive bacterial response regulator. We report a first series of M. tuberculosis antigens to which cross-reactive immunity is induced by NTM infection/exposure. The high conservation of M. tuberculosis DosR regulon-encoded antigens most likely enables them to induce cross-reactive T-cell responses.

Lin, May Young; Reddy, T. B. K.; Arend, Sandra M.; Friggen, Annemieke H.; Franken, Kees L. M. C.; van Meijgaarden, Krista E.; Verduyn, Marleen J. C.; Schoolnik, Gary K.; Klein, Michel R.; Ottenhoff, Tom H. M.



Implementation of DoS attack and mitigation strategies in IEEE 802.11b/g WLAN  

NASA Astrophysics Data System (ADS)

IEEE 802.11 wireless Local Area Network (WLAN) becomes very prevalent nowadays. Either as a simple range extender for a home wired Ethernet interface, or as a wireless deployment throughout an enterprise, WLAN provides mobility, convenience, and low cost. However, an IEEE 802.11b/g wireless network uses the frequency of unlicensed 2.4GHz, which makes the network unsafe and more vulnerable than traditional Ethernet networks. As a result, anyone who is familiar with wireless network may initiate a Denial of Service (DoS) attack to influence the common communication of the network or even make it crash. In this paper, we present our studies on the DoS attacks and mitigation strategies for IEEE 802.11b/g WLANs and describe some initial implementations using IEEE 802.11b/g wireless devices.

Deng, Julia; Meng, Ke; Xiao, Yang; Xu, Roger



Efetividade no Ensino Superior Brasileiro: Aplicacao de Modelos Multin´õvel ` A Analise dos Resultados do Exame Nacional de Cursos  

Microsoft Academic Search

Este estudo tem por objetivo analisar o impacto de caracter´õsticas institucionais sobre o desempenho dos alunos no Exame Nacional de Cursos (Provao). Uma amostra de mais de 74.000 alunos dasareas de Administracao, Direito e Engenharia Civil que realizaram os exames no ano de 2000 foi analisada. Foram estimados modelos multin´õvel, pois estes dados apresentam uma n´õtida estrutura hierarquica. Relativamente aos

Maria Dolores Montoya Diaz



Video movie making using remote procedure calls and 4BSD Unix sockets on Unix, UNICOS, and MS-DOS systems  

SciTech Connect

We describe the use of the Sun Remote Procedure Call and Unix socket interprocess communication mechanisms to provide the network transport for a distributed, client-server based, image handling system. Clients run under Unix or UNICOS and servers run under Unix or MS-DOS. The use of remote procedure calls across local or wide-area networks to make video movies is addressed.

Robertson, D.W.; Johnston, W.E.; Hall, D.E.; Rosenblum, M.



Lack of Immune Responses to Mycobacterium tuberculosis DosR Regulon Proteins following Mycobacterium bovis BCG Vaccination  

Microsoft Academic Search

Mycobacterium bovis BCG is widely used as a vaccine against tuberculosis (TB), despite its variable protective efficacy. Relatively little is known about the immune response profiles following BCG vaccination in relation to protection against TB. Here we tested whether BCG vaccination results in immune responses to DosR (Rv3133c) regulon-encoded proteins. These so-called TB latency antigens are targeted by the immune

M. Y. Lin; A. Geluk; S. G. Smith; A. L. Stewart; A. H. Friggen; K. L. M. C. Franken; M. J. C. Verduyn; K. E. van Meijgaarden; M. I. Voskuil; H. M. Dockrell; K. Huygen; T. H. M. Ottenhoff; M. R. Klein



Research on a Denial of Service (DoS) Detection System Based on Global Interdependent Behaviors in a Sensor Network Environment  

PubMed Central

This research suggests a Denial of Service (DoS) detection method based on the collection of interdependent behavior data in a sensor network environment. In order to collect the interdependent behavior data, we use a base station to analyze traffic and behaviors among nodes and introduce methods of detecting changes in the environment with precursor symptoms. The study presents a DoS Detection System based on Global Interdependent Behaviors and shows the result of detecting a sensor carrying out DoS attacks through the test-bed.

Song, Jae-gu; Jung, Sungmo; Kim, Jong Hyun; Seo, Dong Il; Kim, Seoksoo



Research on a Denial of Service (DoS) detection system based on global interdependent behaviors in a sensor network environment.  


This research suggests a Denial of Service (DoS) detection method based on the collection of interdependent behavior data in a sensor network environment. In order to collect the interdependent behavior data, we use a base station to analyze traffic and behaviors among nodes and introduce methods of detecting changes in the environment with precursor symptoms. The study presents a DoS Detection System based on Global Interdependent Behaviors and shows the result of detecting a sensor carrying out DoS attacks through the test-bed. PMID:22163475

Song, Jae-gu; Jung, Sungmo; Kim, Jong Hyun; Seo, Dong Il; Kim, Seoksoo




Microsoft Academic Search

RESUMO: Objetivo: Identificar os indicadores de hemorragia letal em vítimas de trauma penetrante de tronco, admitidas com hipotensão arterial sistêmica e analisar sua aplicabilidade na seleção dos candidatos ao \\

José Gustavo Parreira


(Pu-244)-Xe formation and gas retention age, exposure history, and terrestrial age of angrites LEW86010 and LEW87051 - Comparison with Angra DOS Reis  

NASA Astrophysics Data System (ADS)

Isotopic abundances of noble gases in two angrites LEW86010 and LEW87051 were investigated and compared with those for the basaltic achondrite Angra dos Reis. An atomic ratio Pu-244/Nd-150 = 0.00136 was calculated for LEW86010, which corresponds to a fission Xe retention age 19 +/-40 Ma younger than that of Angra dos Reis, indicating that LEW86010 formed contemporaneously with Angra dos Reis, for which a formation age of 4550 Ma was previously estimated. The LEW87051 angrite showed the lowest nominal U/Th-(He-4) gas retention age (4 Ma) ever observed for a stone meteorite. The cosmic-ray exposure histories for the three angrites were found to be very different: ages of 17.6 +/-1.0 and 0.2 or greater were calculated for LEW86010 and LEW87051, respectively, compared to a previously reported exposure age of 55.5 for Angra dos Reis.

Eugster, O.; Michel, Th.; Niedermann, S.




Microsoft Academic Search

RESUMO ñ Esta pesquisa teve por objetivo avaliar os riscos de acidentes em atividades de poda de Ærvores na arborizaÁªo urbana do Distrito Federal. A coleta de dados foi feita com a aplicaÁªo de um questionÆrio em forma de entrevista individual. Responderam ao questionÆrio 94% dos funcionÆrios, sendo 92% do total dos operadores de motosserra e 95% do total de

Nilton CØsar Fiedler; Eduardo Hideki; Ailton Teixeira


The W-Beijing Lineage of Mycobacterium tuberculosis Overproduces Triglycerides and Has the DosR Dormancy Regulon Constitutively Upregulated?  

PubMed Central

The Beijing family of Mycobacterium tuberculosis strains has been associated with epidemic spread and an increased likelihood of developing drug resistance. The characteristics that predispose this family to such clinical outcomes have not been identified, although one potential candidate, the phenolic glycolipid PGL-tb, has been shown to mediate a fulminant lethal disease in mice and rabbits due to lipid-mediated immunosuppression. However, PGL-tb is not uniformly expressed throughout the Beijing lineage and may not be the only unique virulence trait associated with this family. In an attempt to define phenotypes common to all Beijing strains, we interrogated a carefully selected set of isolates representing the five extant lineages of the Beijing family. Comparison of lipid production in this set revealed that all Beijing strains accumulated large quantities of triacylglycerides in in vitro aerobic culture. This accumulation was found to be coincident with upregulation of Rv3130c, whose product was previously characterized as a triacylglyceride synthase. Rv3130c is a member of the DosR-controlled regulon of M. tuberculosis, and further examination revealed that several members of this regulon were upregulated throughout this strain family. The upregulation of the DosR regulon may confer an adaptive advantage for growth in microaerophilic or anaerobic environments encountered by the bacillus during infection and thus may be related to the epidemiological phenomena associated with this important strain lineage.

Reed, Michael B.; Gagneux, Sebastien; DeRiemer, Kathryn; Small, Peter M.; Barry, Clifton E.



Supporting Security against SYN Flooding Attack in Distributed DoS Via Measuring IPFIX-Based Traffic  

NASA Astrophysics Data System (ADS)

Distributed denial-of-service attacks on public servers after 2000 have become a serious problem. In the distributed denial-of-service (DDoS) attacks often seen recently, multiple distributed nodes concurrently attack a single server. To assure that network services will not be interrupted, faster and more effective defense mechanisms is needed to protect against malicious traffic, especially SYN floods. One problem in detecting SYN flood traffic is that server nodes or firewalls cannot distinguish the SYN packets of normal TCP connections from those of a SYN flood attack. Our method, FDFIX, relies on the use of monitoring and measurement techniques to evaluate the impact of DoS attacks. It uses flow based measurements. Capturing flow information is very important for detecting DoS and also other kinds of attacks. Flow monitoring allows detecting suspicious traffics and in the next step can analyze attacking flows and the results can be used for defense methods. Our method provides required information for many mechanisms that use traffic measurement as their input.

Alipour, H.; Kia, M. Kashefi; Esmaeili, M.


Assessment of human health risk from organochlorine pesticide residues in Cidade dos Meninos, Duque de Caxias, Rio de Janeiro, Brazil.  


This article presents the results of a heath risk assessment in Cidade dos Meninos, an area contaminated with organochlorine pesticide residues located in the county (municipality) of Duque de Caxias, Rio de Janeiro State, Brazil. The Agency for Toxic Substances and Disease Registry (ATSDR) risk assessment methodology was applied. The following organochlorine compounds exceeded the established limits and were considered target pollutants: HCH and its isomers (in eggs, milk, and soil); DDT and its metabolites; trichlorobenzenes; trichlorophenols; dioxins and furans (eggs and soil). For all the substances studied (with the exception of trichlorophenols), the estimated doses exceeded the minimum risk levels for chronically exposed children and adults. According to the ATSDR classification, the area was considered an "urgent public health hazard" because of its high and serious exposure to substances that are dangerous to human health. PMID:18392352

Asmus, Carmen Ildes R Fróes; Alonzo, Herling Gregorio Aguilar; Palácios, Marisa; Silva, Alexandre Pessoa da; Freitas Filhote, Maria Isabel de; Buosi, Daniela; Câmara, Volney de Magalhães



Long term exposure to organochlorine pesticides and thyroid function in children from Cidade dos Meninos, Rio de Janeiro, Brazil.  


A pesticide factory in Cidade dos Meninos village, Duque de Caxias County, Rio de Janeiro, Brazil, ended its activity in 1961, leading to widespread contamination of the environment by several organochlorine pesticides. The aim of this study was to investigate the effects of chronic exposure to organochlorine pesticides on thyroid hormone levels in children residing in Cidade dos Meninos. In a population-based survey carried out between 2003 and 2004, serum concentration of 19 pesticides and levels of free thyroxine (T4), total triiodothyronine (T3) and thyroid-stimulating hormone (TSH) were determined in 193 children younger than 15 years old. Multivariate linear regression was conducted to examine thyroid hormone levels according to quintiles of organochlorine exposure, controlling for age, gender and serum lipid content. Free T4 and TSH levels were within reference values (0.7-1.8 ng/dl and 0.35-5.5 mU/l), whereas total T3 was above the reference range (80-180 ng/dl) in 28% of children. More than 60% of the children had detectable levels of most organochlorine pesticides. With the exception of heptachlor and methoxychlor, total T3 levels showed a significant increasing linear trend regardless of pesticide type to which children were exposed. Free T4 levels were positively and significantly associated only with exposure to p,p'-DDD, endosulfan 1, and dieldrin. No significant trend was found for TSH. Data showed that exposure of children to organochlorine pesticides produced a significant increase in serum total T3 concentrations. The clinical implications of such a total T3 elevation and subsequent development are uncertain and warrant the need for health monitoring of these children. PMID:22776325

Freire, Carmen; Koifman, Rosalina Jorge; Sarcinelli, Paula; Rosa, Ana Cristina; Clapauch, Ruth; Koifman, Sergio



Application of geostatistical methods to arsenic data from soil samples of the Cova dos Mouros mine (Vila Verde-Portugal).  


A total of 286 soil samples were collected in the Cova dos Mouros area. All samples were dry sieved into the <200 mesh size fraction and analysed for Fe, Cu, Zn, Pb, Co, Ni, Bi and Mn by atomic absorption spectrometry (AAS) and for As, Se, Sb and Te by atomic absorption spectrometry-hydrid generation (AAS-HG). Only the results of arsenic are discussed in this paper although the survey was extended to all analysed chemical elements. The purpose of this study was to make a risk probability mapping for arsenic that would allow better knowledge about the vulnerability of the soil to arsenic contamination. To achieve this purpose, the initial variable was transformed into an indicator variable using as thresholds the risk-based standards (intervention values) for soils, as proposed by [Swartjes 1999. Risk based assessment of soil and groundwater quality in the Netherlands: Standards and remediation. J. Geochem. Explor.73 1-10]. To account for spatial structure, sample variograms were computed for the main directions of the sampling grid and a spherical model was fitted to each sample variogram (arsenic variable and indicator variables). The parameters of the spherical model fitted to the arsenic variable were used to predict arsenic concentrations at unsampled locations. A risk probability mapping was also done to assess the vulnerability of the soil towards the mining works. The parameters of the spherical model fitted to each indicator variable were used to estimate probabilities of exceeding the corresponding threshold. The use of indicator kriging as an alternative to ordinary kriging for the soil data of Cova dos Mouros produced unbiased probability maps that allowed assessment of the quality of the soil. PMID:16059781

Reis, A P; Sousa, A J; Da Silva, E Ferreira; Fonseca, E Cardoso



Escuelas de campo y adopción de ecotecnia agrícola  

Microsoft Academic Search

Farmer field Schools and adoption of agricultural ecotechnology. Farmer Field Schools (FFS) are a method of participative extension that allows farmers to develop analytical skills, critical thinking and creativity. This study was conducted in the Mazateca region of Oaxaca, which is characterized by its technological backwardness. It is scientifically, socially and ecologically relevant, in this context, to assess the scope

S. Orozco Cirilo; L. Jiménez Sánchez; N. Estrella Chulím; B. Ramírez Valverde; B. V. Peña Olvera; A. Ramos Sánchez; M. Morales Guerra



D. Ayala J. Campos M. Ferre S. Grau A. Puig  

Microsoft Academic Search

Volume rendering is a very active research field in Computer Graphics be- cause of its wide range of applications in various sciences, from medicine to flow mechanics. In this report, we survey a state-of-the-art on time-varying volume rende ring. We state several basic concepts and then we establish several criteria to c las- sify the studied works: IVR versus DVR,

D. Tost


Campos Basin, Marlin and other deep water fields.  

National Technical Information Service (NTIS)

This paper emphasizes the Brazilian deep water production history driven with the usage of floating production systems. The development of the Marlin and other deep water fields as well their features, is presented. Discoveries already made in waters deep...

A. C. Agostini



Offshore Heavy Oil in Campos Basin: The Petrobras Experience  

Microsoft Academic Search

This paper was selected for presentation by an OTC Program Committee following review of information contained in an abstract submitted by the author(s). Contents of the paper, as presented, have not been reviewed by the Offshore Technology Conference and are subject to correction by the author(s). The material, as presented, does not necessarily reflect any position of the Offshore Technology

A. C. Capeleiro Pinto; C. C. M. Branco; J. S. de Matos; P. M. Vieira; S. da Silva Guedes; C. Pedroso Jr; A. C. Decnop Coelho; M. M. Ceciliano



Diseño De Comunidades Emprendedoras, Solidarias Y Democráticas. Trabajo de campo: \\  

Microsoft Academic Search

The design of curriculum in entrepreneurship for youths is a field of work that can respond to its expectations of formation in the basic secondary one and can contribute in the economic development to local scale. It is proposed that learning in entrepreneurship should go beyond the traditional class and the ap- proximations al business plan format. A revision of

W. A. Flórez


Agrícola Ebro's tender offer for Campos Chilenos to control Iansa  

Microsoft Academic Search

Purpose – The purpose of this paper is to describe the wealth expropriation from minority to majority shareholders due to the lack of legislation protecting the interests of minority shareholders in an acquisition deal, validating the claims made on studies made by Zingales and by La Porta et al. Design\\/methodology\\/approach – Despite an overall takeover premium of nearly 250 percent,

Franco Parisi; Lance Nail; Vito Sciaraffia



Power-efficiency trade-off due to density of states (DOS) distortion in a molecular thermoelectric system  

NASA Astrophysics Data System (ADS)

The issue of how a distortion in the electronic DOS affects nanoscale thermoelectric performance is addressed within an ``electrical engineering'' perspective. This view point is based on the direct evaluation of the overall efficiency and power from device current-voltage characteristics and gives a more complete picture of the thermoelectric performance in comparison to the traditional ``figure of merit'' based material science approach. We use representative examples from molecular conduction to study the trade-off between maximum efficiency and the maximum power generated within the set up. The trade-off is maximum for the well known example of a sharply resonant molecular level which represents the ultimate distortion in the electronic density of states. As the distortion is reduced via contact induced broadening, we obtain a smaller trade-off between maximum power and efficiency. We then present the effects of self consistent charging, contact induced asymmetry and the HOMO-LUMO gap on the thermoelectric performance. In all cases we compare our non-equilibrium calculations with zT calculations, and our results depict that zT is not the sole metric for the assessment of nanoscale thermoelectric performance.

Desouza, Priyanka; Muralidharan, Bhaskaran




Microsoft Academic Search

RESUMO: O presente trabalho teve por objetivo avaliar a eficiência na remoção de poluentes no pré- tratamento, tratamento primário e secundário de águas residuárias da lavagem e despolpa dos frutos do cafeeiro. Foram coletadas amostras em sete pontos distintos, ao longo do sistema de tratamentos para análise da DBO, DQO, sólidos sedimentáveis (SP), sólidos totais (ST), sólidos fixos totais (SFT),

Roberta Alessandra; Bruschi GONÇALVES; Antonio Teixeira de MATOS


Evaluating Network-Based DoS Attacks under the Energy Consumption Perspective: New Security Issues in the Coming Green ICT Area  

Microsoft Academic Search

In the green Information and Communication Society (ICS), new form of Denial of Service (DoS) attacks may be put in place: exploiting the computational and storage resources of datacenters with the aim of consuming as much energy as possible, causing detrimental effects, from high costs in the energy bill, to penalization for exceeding the agreed quantity of CO2 emissions, up

Francesco Palmieri; Sergio Ricciardi; Ugo Fiore




Microsoft Academic Search

Esse artigo investiga os efeitos de notícias a respeito do mau da vaca louca ou BSE sobre o consumo das carnes bovina, suína e de aves nos EUA. Presume-se que o sistema nacional de identificação animal (NAIS) poderia em tese atenuar a percepção de risco dos consumidores sobre contrair o mau da vaca louca ao consumir carnes. Sistemas de equações

Moises de Andrade Resende Filho; Brian L. Buhr




Microsoft Academic Search

Resumo: O presente estudo sobre o mercado dos medicamentos genéricos visa demonstrar, dentre outras, a gestão da informação como mecanismo de apoio ao monitoramento tecnológico e tomada de decisão, tendo como vetor principal análise de patentes. Este estudo aplica a metodologia de inteligência competitiva no sentido de viabilizar a monitoração de drogas genéricas (ind. farmoquímica), bem como formulações (ind. farmacêutica),

Claudia CANONGIA; Adelaide ANTUNES; Maria de Nazaré PEREIRA


Análisis del comportamiento genético de dos grupos germoplásmicos complementarios de maíz Analysis of the genetic performance of two germoplasm complementary groups of maize  

Microsoft Academic Search

Resumen Cuando se está interesado en el mejoramiento de los híbridos resultantes del cruzamiento entre individuos de dos poblaciones, se recomienda conocer el comportamiento genético de las características de importancia económica de cada población, para elegir la estrategia de selección que permita obtener híbridos con mayores ventajas agronómicas. El método IV de los cruzamientos dialélicos propuestos por Griffing se ha

Humberto De León Castillo; José Espinoza Velásquez; Daniel Sámano Garduño



Microsoft Academic Search

Desde os anos 90 existe um esforço da União Européia em promover a proteção ecológica dos corpos d'água. Com a nova Diretriz da Água do Parlamento Europeu e do Conselho, de 23 de Outubro de 2000, pela primeira vez, uma orientação ecológica foi atingida na União Européia. Várias ações estão sendo implementadas, dentre elas ressalta-se o estabelecimento de um plano

Alessandra Maciel; Maria do Carmo Sobral; Günter Gunkel


Avaliação dos Efeitos da Radiação Gama nos Teores de Carotenóides, Ácido Ascórbico e Açúcares do Fruto Buriti do Brejo (Mauritia flexuosa L.)  

Microsoft Academic Search

RESUMO Buriti do Brejo (Mauritia flexuosa L.) é um típico fruto da Amazônia, Nordeste e Centro-Oeste brasileiro, muito utilizado na culinária para produção de sucos, doces e vinhos. É considerado uma excelente fonte de carotenóides precursores da vitamina A, apresentando maior concentração de ?-caroteno. Além dos carotenóides também encontramos ácido ascórbico e açúcares. O ácido ascórbico administrado em quantidades suficientes

Antonio Luís; Santos LIMA; Keila dos Santos; Cople LIMA; Maysa Joppert COELHO; Jaqueline Michele



Immunogenicity of Novel DosR Regulon-Encoded Candidate Antigens of Mycobacterium tuberculosis in Three High-Burden Populations in Africa? †  

PubMed Central

Increasing knowledge about DosR regulon-encoded proteins has led us to produce novel Mycobacterium tuberculosis antigens for immunogenicity testing in human populations in three countries in Africa to which tuberculosis (TB) is endemic. A total of 131 tuberculin skin test-positive and/or ESAT-6/CFP10-positive, human immunodeficiency virus-negative adult household contacts of active pulmonary TB cases from South Africa (n = 56), The Gambia (n = 26), and Uganda (n = 49) were tested for gamma interferon responses to 7 classical and 51 DosR regulon-encoded M. tuberculosis recombinant protein antigens. ESAT-6/CFP10 fusion protein evoked responses in >75% of study participants in all three countries. Of the DosR regulon-encoded antigens tested, Rv1733c was the most commonly recognized by participants from both South Africa and Uganda and the third most commonly recognized antigen in The Gambia. The four most frequently recognized DosR regulon-encoded antigens in Uganda (Rv1733c, Rv0081, Rv1735c, and Rv1737c) included the three most immunogenic antigens in South Africa. In contrast, Rv3131 induced the highest percentage of responders in Gambian contacts (38%), compared to only 3.4% of Ugandan contacts and no South African contacts. Appreciable percentages of TB contacts with a high likelihood of latent M. tuberculosis infection responded to several novel DosR regulon-encoded M. tuberculosis proteins. In addition to significant similarities in antigen recognition profiles between the three African population groups, there were also disparities, which may stem from genetic differences between both pathogen and host populations. Our findings have implications for the selection of potential TB vaccine candidates and for determining biosignatures of latent M. tuberculosis infection, active TB disease, and protective immunity.

Black, Gillian F.; Thiel, Bonnie A.; Ota, Martin O.; Parida, Shreemanta K.; Adegbola, Richard; Boom, W. Henry; Dockrell, Hazel M.; Franken, Kees L. M. C.; Friggen, Annemiek H.; Hill, Philip C.; Klein, Michel R.; Lalor, Maeve K.; Mayanja, Harriet; Schoolnik, Gary; Stanley, Kim; Weldingh, Karin; Kaufmann, Stefan H. E.; Walzl, Gerhard; Ottenhoff, Tom H. M.



Activation of ATP binding for the autophosphorylation of DosS, a Mycobacterium tuberculosis histidine kinase lacking an ATP lid motif.  


The sensor histidine kinases of Mycobacterium tuberculosis, DosS and DosT, are responsible for sensing hypoxic conditions and consist of sensor and kinase cores responsible for accepting signals and phosphorylation activity, respectively. The kinase core contains a dimerization and histidine phosphate-accepting (DHp) domain and an ATP binding domain (ABD). The 13 histidine kinase genes of M. tuberculosis can be grouped based on the presence or absence of the ATP lid motif and F box (elements known to play roles in ATP binding) in their ABDs; DosS and DosT have ABDs lacking both these elements, and the crystal structures of their ABDs indicated that they were unsuitable for ATP binding, as a short loop covers the putative ATP binding site. Although the ABD alone cannot bind ATP, the kinase core is functional in autophosphorylation. Appropriate spatial arrangement of the ABD and DHp domain within the kinase core is required for both autophosphorylation and ATP binding. An ionic interaction between Arg(440) in the DHp domain and Glu(537) in the short loop of the ABD is available and may open the ATP binding site, by repositioning the short loop away from the site. Mutations at Arg(440) and Glu(537) reduce autophosphorylation activity. Unlike other histidine kinases containing an ATP lid, which protects bound ATP, DosS is unable to accept ATP until the ABD is properly positioned relative to the histidine; this may prevent unexpected ATP reactions. ATP binding can, therefore, function as a control mechanism for histidine kinase activity. PMID:23486471

Cho, Ha Yeon; Lee, Young-Hoon; Bae, Young-Seuk; Kim, Eungbin; Kang, Beom Sik



ParticiPação dos Pais na tomada de decisões no atendimento odontológico de seus filhos PaRent' S ROle On the deCiSiOn taking Of theiR ChildRen' S dental tReatment  

Microsoft Academic Search

resumo Introdução: Segundo o Código de Ética Odontológica, é considerada infração o atendimento de pacientes infantis sem o consentimento dos pais ou responsáveis, salvo em situações de urgência. No tratamento odontopediátrico, é indispensável o esclarecimento dos pais em relação aos procedimentos a que seus filhos serão submetidos, as opções de tratamento existentes e seus custos, para que eles possam emitir

Monique Santos Machado; Helen Cristhiane; Muller Nagano; Juliana Yassue; Barbosa da Silva; Vera Lúcia Bosco


Cat?licos, fidelidade conjugal e AIDS: entre a cruz da doutrina moral e as espadas do cotidiano sexual dos adeptos1  

PubMed Central

Neste artigo discutimos a visão da Igreja Católica sobre sexualidade na interface com a epidemia do HIV/AIDS. Nossa reflexão está embasada em pesquisa etnográfica que envolveu dois meses de observação participante do cotidiano de católicos de um bairro popular da Região Metropolitana do Recife, além de contar com entrevistas a onze dos leigos engajados nos serviços religiosos da igreja do bairro e a oito sacerdotes que realizam seus trabalhos religiosos em outras localidades. Nelas abordamos diferentes temáticas relacionadas ao enfrentamento da epidemia da AIDS. Nesse contexto, conjugalidade e fidelidade se afiguram como importantes analisadores de como aqueles lidam com a epidemia, em uma variedade de re-descrições práticas e de re-interpretações conceptuais das assertivas do discurso moral religioso – ainda que, muitos impasses permaneçam em aberto em termos das prerrogativas da Igreja e seus possíveis rebatimentos na saúde sexual dos adeptos.

Rios, Luis Felipe; de Aquino, Francisca Luciana; Munoz-Laboy, Miguel; Oliveira, Cinthia; Parker, Richard



Stratigraphy of fluvial sediment sequences and their palaeoenvironmental information in the foreland of the Serra dos Órgãos, southeastern Brazil  

NASA Astrophysics Data System (ADS)

In the hinterland of Rio de Janeiro city the rivers Guapiaçu, Macacu and Iconha originate in the Serra dos Órgãos mountain range and drain into the Atlantic Ocean. Since their channelization in the 1950s, higher flow velocities caused an incision of the rivers into the valley fills. These circumstances provide the possibility to study the alluvial deposits along the streams during low water level and allow conclusions on palaeoenvironmental change and landscape history. Sedimentological investigations of 13 exposures as well as AMS 14C measurements were carried out to investigate sediment properties and reconstruct the sedimentation history within the floodplains. These results enable to distinguish three different facies units. A late Pleistocene Unit I can be detected at the base of the observed exposures and consists of clast-supported fine to coarse gravels. It can be assumed that the gravel bodies were formed by a climatically induced erosional-depositional cycle within a braided river system. The gravels are overlaid by Unit II, a grayish to bluish loam mainly of mid-Holocene age. During generally drier climates these loams have been deposited during high water stages or flooding events as a splay facies proximal to the rivers. A reduced flow competence and relatively stable morphodynamic conditions are assumed for that period. Unit III accumulated in the late Holocene typically consists of several meters of planar or cross bedded sands to fine gravels, interfingered by loamy inclusions, buried peat bogs and organic debris. Fining-upward sequences can be frequently studied within Unit III which were completed by loamy sediments in the uppermost parts of the exposures. The increased flow competence from Unit II to Unit III seems to be a fluvial response to the increased humidity of the late Holocene as well as the enhancement of El Niño-Southern Oscillation (ENSO). Heavy rainfall likely caused higher sediment supply from the steep slopes as well as a reworking of sediments followed by sedimentation in the floodplains. The development of the uppermost loams is attributed to deforestation and land use intensification in historical times which led to higher erosion rates and related sediment loads. An increased human impact can be postulated for the last 250 years.

Kirchner, André; Nehren, Udo; Heinrich, Jürgen



Corrosion of bronze alloy with some lead content: implications in the archaeometallurgical study of Late Bronze Age metal artefacts from Fraga dos Corvos (northern Portugal)  

Microsoft Academic Search

Distinguishing bronzes with low lead contentfrom those with high lead content through non-destructive surface techniques, such as energy dispersive X-ray spectrometry (EDXRF) performed over corrosion layers, can be very dubious. Three artefacts andfour metalfragments dated to the Late Bronze Age, found in a rock shelter at the Fraga dos Corvos archaeological site in northern Portugal, have been analyszed through non-invasive

Elin Figueiredoasb; Maria de Fátima Araújo; Cidade Estrada


The Serra Pelada Au-PGE deposit, Serra dos Carajás (Pará State, Brazil): geological and geochemical indications for a composite mineralising process  

Microsoft Academic Search

The Serra Pelada Au-PGE-rich deposit is located in the Serra dos Carajás, a leading mining area in Brazil. This region is characterised by a complex geological and structural framework and is affected by deep lateritisation which has lasted for more than 70 Ma. The Serra Pelada deposit is emplaced in a late-Archean low-grade metasedimentary sequence (Rio Fresco\\/Águas Claras Formation) which

Marilena Moroni; Vicente A. Girardi; Alfredo Ferrario



Exposure pathways to HCH and DDT in Cidade dos Meninos and its surrounding districts of Amapa, Figueiras and Pilar, metropolitan regions of Rio de Janeiro, Brazil.  


In 1989, the Rio de Janeiro State environmental agency (FEEMA) after a preliminary survey of the site known as Cidade dos Meninos, collected and disposed in a safe area tons of a pesticide that was spread in and around the ruins of an old hexachlorocyclohexane (HCH) factory. The aim of this article is three-fold: (i) To investigate the existing HCH and DDT contamination levels in soil, water, air, vegetables and grasses at the Cidade dos Meninos site and the surrounding districts of Amapa, Figueiras and Pilar; (ii) To identify the main environmental exposure pathways present in the study area, and (iii) To propose a health hazard classification for this area. The results showed the presence of high levels of total HCH and DDT in the environmental media samples, especially in those collected in the district Cidade dos Meninos. This district is also the one that produces more food (vegetables, milk and meat) for local and outside population. The environmental data correlated to the socio-economic, food diet and local health conditions led to the identification of four complete exposure pathways to HCH and DDT (surface soil, access road, food chain and ambient air). Using the ATSDR (1996) and Magalhães (2000) criteria the site was classified in two public health hazard categories: Category II - hazard for public health, and category III - indeterminate hazard for public health. PMID:16611565

Brilhante, Ogenis M; Franco, Robson



2.3 ? X-ray Structure of the Heme-Bound GAF Domain of Sensory Histidine Kinase DosT of Mycobacterium tuberculosis†  

PubMed Central

Mycobacterium tuberculosis responds to the changes in environmental conditions through a two-component signaling system that detects reduced O2 tension and NO and CO exposures via the heme-binding GAF domains of two sensory histidine kinases, DosT and DevS, and the transcriptional regulator DosR. We report the first x-ray structure of the DosT heme-bound GAF domain (GAFDosT) in both oxy and deoxy forms determined to a resolution of 2.3 Å. In GAFDosT, heme binds in an orientation orthogonal to that in the PAS domains via a highly conserved motif including invariant H147 as a proximal heme axial ligand. On the distal side, invariant Y169 is in stacking interactions with the heme with its long axis parallel and the plane of the ring orthogonal to the heme plane. In one of the two protein monomers in an asymmetric unit, O2 binds as a second axial ligand to the heme iron, and is stabilized via an H-bond to the OH-group of Y169. The structure reveals two small tunnel-connected cavities and a pore on the protein surface that suggest a potential route for O2 access to the sensing pocket. The limited conformational differences observed between differently heme iron-ligated GAFDosT monomers in the asymmetric unit may result from crystal lattice limitations since atmospheric oxygen binding likely occurs in the crystal as a result of x-ray induced Fe3+ photoreduction during diffraction data collection. Determination of the GAFDosT structure sets up a framework in which to address ligand-recognition, discrimination, and signal propagation schemes in the heme-based GAF domains of biological sensors.

Podust, Larissa M.; Ioanoviciu, Alexandra; Ortiz de Montellano, Paul R.



The Caenorhabditis elegans EGL-15 Signaling Pathway Implicates a DOS-Like Multisubstrate Adaptor Protein in Fibroblast Growth Factor Signal Transduction  

PubMed Central

EGL-15 is a fibroblast growth factor receptor in the nematode Caenorhabditis elegans. Components that mediate EGL-15 signaling have been identified via mutations that confer a Clear (Clr) phenotype, indicative of hyperactivity of this pathway, or a suppressor-of-Clr (Soc) phenotype, indicative of reduced pathway activity. We have isolated a gain-of-function allele of let-60 ras that confers a Clr phenotype and implicated both let-60 ras and components of a mitogen-activated protein kinase cascade in EGL-15 signaling by their Soc phenotype. Epistasis analysis indicates that the gene soc-1 functions in EGL-15 signaling by acting either upstream of or independently of LET-60 RAS. soc-1 encodes a multisubstrate adaptor protein with an amino-terminal pleckstrin homology domain that is structurally similar to the DOS protein in Drosophila and mammalian GAB1. DOS is known to act with the cytoplasmic tyrosine phosphatase Corkscrew (CSW) in signaling pathways in Drosophila. Similarly, the C. elegans CSW ortholog PTP-2 was found to be involved in EGL-15 signaling. Structure-function analysis of SOC-1 and phenotypic analysis of single and double mutants are consistent with a model in which SOC-1 and PTP-2 act together in a pathway downstream of EGL-15 and the Src homology domain 2 (SH2)/SH3-adaptor protein SEM-5/GRB2 contributes to SOC-1-independent activities of EGL-15.

Schutzman, Jennifer L.; Borland, Christina Z.; Newman, John C.; Robinson, Matthew K.; Kokel, Michelle; Stern, Michael J.



[Residual concentration of hexachlorocyclohexane in a contaminated site in Cidade dos Meninos, Duque de Caxias, Rio de Janeiro, Brazil, after calcium oxide treatment].  


Hexachlorocyclohexanes (HCHs) are currently considered potentially carcinogenic to humans. In Brasil, severe soil contamination by HCHs has been identified at Cidade dos Meninos, Duque de Caxias, Rio de Janeiro, where an old HCH factory was abandoned 40 years ago, leaving 1,700 local residents at risk. Calcium oxide treatment was performed on the most heavily contaminated (focus) area. Analysis of superficial soil samples collected years after treatment still showed high residual HCH. Contamination levels as high as 6,200mg/Kg and 7,320mg/Kg were found for alpha- and beta-HCH isomers. For the gamma- and delta-HCH isomers, concentrations reached up to 140mg/Kg and 530mg/Kg, respectively. The results showed that calcium oxide treatment was not efficient to decontaminate the soil in this area. PMID:12764460

de Oliveira, Rosália Maria; Bastos, Lúcia Helena Pinto; de Oliveira e Dias, Ana Elisa Xavier; da Silva, Sérgio Alves; Moreira, Josino Costa



pH Dependence of Cyanide Binding to the Ferric Heme Domain of the Direct Oxygen Sensor from Escherichia coli (EcDosH) and the Effect of Alkaline Denaturation†  

PubMed Central

The spectrum of the ferric heme domain of the direct oxygen sensor protein from Escherichia coli (EcDosH) has been measured between pH 3.0 and 12.6. EcDosH undergoes acid denaturation with an apparent pKA of 4.24 ± 0.05 and Hill coefficient of 3.1 ± 0.6 and reversible alkaline denaturation with pKA of 9.86 ± 0.04 and Hill coefficient of 1.1 ± 0.1. Cyanide binding to EcDosH has been investigated between pH 4 and 11. The EcDosH/cyanide complex is most stable at pH 9 with a KD of 0.29 ± 0.06 ?M. The kinetics of cyanide binding are monophasic between pH 4 and 8. At pH 8.5 and greater, the reaction is biphasic with the fast phase dependent upon the cyanide concentration and the slow phase independent of cyanide. The slow phase is attributed to conversion of denatured EcDosH to the native state, with a pH-independent rate of 0.052 ± 0.006 s?1. The apparent association rate constant for cyanide binding to EcDosH increases from 3.6 ± 0.1 M?1 s?1 at pH 4 to 520 ± 20 M?1 s?1 at 11. The dissociation rate constant averages (8.6 ± 1.3) × 10?5 s?1 between pH 5 and 9, increasing to (1.4 ± 0.1) × 10?3 s?1 at pH 4 and (2.5 ± 0.1) × 10?3 s?1 at pH 12.2. The mechanism of cyanide binding is consistent with preferential binding of the cyanide anion to native EcDosH. The reactions of imidazole and H2O2 with ferric EcDosH were also investigated and show little reactivity.

Bidwai, Anil K.; Ok, Esther Y.; Erman, James E.



Components of the Rv0081-Rv0088 Locus, Which Encodes a Predicted Formate Hydrogenlyase Complex, Are Coregulated by Rv0081, MprA, and DosR in Mycobacterium tuberculosis?†  

PubMed Central

Mycobacterium tuberculosis, the etiological agent of tuberculosis, remains a significant cause of morbidity and mortality throughout the world despite a vaccine and cost-effective antibiotics. The success of this organism can be attributed, in part, to its ability to adapt to potentially harmful stress within the host and establish, maintain, and reactivate from long-term persistent infection within granulomatous structures. The DosRS-DosT/DevRS-Rv2027c, and MprAB two-component signal transduction systems have previously been implicated in aspects of persistent infection by M. tuberculosis and are known to be responsive to conditions likely to be found within the granuloma. Here, we describe initial characterization of a locus (Rv0081-Rv0088) encoding components of a predicted formate hydrogenylase enzyme complex that is directly regulated by DosR/DevR and MprA, and the product of the first gene in this operon, Rv0081. In particular, we demonstrate that Rv0081 negatively regulates its own expression and that of downstream genes by binding an inverted repeat element in its upstream region. In contrast, DosR/DevR and MprA positively regulate Rv0081 expression by binding to recognition sequences that either partially or completely overlap that recognized by Rv0081, respectively. Expression of Rv0081 initiates from two promoter elements; one promoter located downstream of the DosR/DevR binding site but overlapping the sequence recognized by both Rv0081 and MprA and another promoter downstream of the DosR/DevR, Rv0081, and MprA binding sites. Interestingly, Rv0081 represses Rv0081 and downstream determinants following activation of DosRS-DosT/DevRS-Rv2027c by nitric oxide, suggesting that expression of this locus is complex and subject to multiple levels of regulation. Based on this and other published information, a model is proposed detailing Rv0081-Rv0088 expression by these transcription factors within particular growth environments.

He, Hongjun; Bretl, Daniel J.; Penoske, Renee M.; Anderson, David M.; Zahrt, Thomas C.



As tentativas dos cognitivistas pioneiros  

Microsoft Academic Search

The tentatives of the pioneer cognitivists. This paper intends to offer more exact information about Oswald Külpe and his application of the experimental method on cognitive processes. How do we think? Are perceptive images always necessary to create our thinking? What is the speed of our thinking and how do we solve problems? With the support of his students -

Reinier Johannes; Antonius Rozestraten; Dom Bosco



¡Dos es mejor que uno!  

Center for Food Safety and Applied Nutrition (CFSAN)

Text Version... Puerta a la Información de Seguridad Alimentaria del Gobierno: www. JMH Education Mark eting, Inc., New Y ork, NY More results from


Impact of natural climate change and historical land use on vegetation cover and geomorphological process dynamics in the Serra dos Órgãos mountain range in Rio de Janeiro State, Brazil  

Microsoft Academic Search

The Serra dos Órgãos mountain range in the hinterland of Rio de Janeiro contains extensive remnants of the Atlantic Forest (Mata Atlântica) biome, which once covered about 1.5 million km² from Northeast to South Brazil and further inland to Paraguay and Argentina. As a result of historical deforestation and recent land use intensification processes today only 5 to 8% of

U. Nehren; D. Sattler; J. Heinrich




Microsoft Academic Search

RESUMO: Para avaliar o efeito do comportamento de três espécies de abelhas na polinização e produção de morangos, flores primárias dos cultivares Oso Grande (OS) e Sweet Charlie (SC) foram expostas a diferentes tratamentos de polinização: OS - uma e quatro visitas por Trigona spinipes (Apidae), uma visita por Dialictus sp (Halictidae) e quatro visitas mistas (Apis mellifera e T.



Medida de Calor Espec´ ifico e Lei de Resfriamento de Newton: Um Refinamento na An ´ alise dos Dados Experimentais (Measurement of Specific Heat and Newton's Law of Cooling: A Refinement in the Analysis of the Experimental Data)  

Microsoft Academic Search

opria func ¸ ˜ ao que descreve a lei de resfriamento aos dados possibilitou a comparac ¸ ˜ ao imediata dos parˆ ametros obtidos experimentalmente com aqueles previstos pela teoria, e ha uma grande concordancia entre eles. A aplicac ¸ ˜ ao deste refinamento na determinac ¸ ˜ ao do calor espec´ ifico do alum´ inio indica que tal procedi-

Wilton Pereira da Silva; W. Precker




Microsoft Academic Search

Esse trabalho procura discutir a aplicação da lei 9.974\\/00 (prevenção ao impacto ambiental causado pelo descarte incorreto das embalagens de agrotóxicos) na região cafeeira no município de Lavras no Sul de Minas Gerais através da percepção dos agentes envolvidos na comercialização e destinação final das embalagens de agrotóxicos (produtores, revendas autorizadas e Ministério Público).---------------------------------------------This reserch aims to discuss the law

Marcelo Marcio Romaniello; Cristhiane Oliveira Da Graca Amancio; Walter Braga Junior



Evaluación en condiciones de campo de la vacuna inactivada de Anaplasma marginale denominada Plazvax  

Microsoft Academic Search

In order to determine the effectiveness of the Plazvax vaccine against bovine anaplasmosis, 32 susceptible bovines were used. A group of 24 animals was immunized against the rickettsia by inoculating them subcutaneously with 1 ml of the vaccine in two occasions, 21 days apart. Eight bovines remained as the control group and were not vaccinated. One month after the second

Julio Vicente; Figueroa Millan; Edmundo Enrique; Rojas Ramírez; Juan Alberto Ramos Aragón; Gabriela Granjeno Colín; Miguel Angel García Ortíz; Germinal Jorge; Canto Alarcón; Carlos Santiago Valencia; Fernando Parrodi


Su inversioni del campo elettrico terrestre a cielo sereno e una loro possibile spiegazione  

Microsoft Academic Search

\\u000a Sunto  Viene descritto un andamento anomalo del gradiente di Potenziale al Col d’Olen sul Monte Rosa durante una giornata che, dalle\\u000a condizioni atmosferiche, si poteva giudicare del tutto normale.\\u000a \\u000a Del fenomeno si dà una spiegazione plausibile dimostrando corne sia possibile la formazione di cariche spaziali solo che a\\u000a una certa distanza dalla stazione si trovino nubi o semplici strati di nebbia

G. Aliverti; M. C. Montù




Microsoft Academic Search

The present work, Brachiária decumbens Stapf., to the application of lime, nitrogen and zinc in the quality of dry matter to evaluate residual the reply of the during four cuts. For this, an experiment was installed in the UNESP\\/FEIS, Selvíria-MS, a distrofic Red Latosol (october\\/1996 may\\/1997). The experimental design was blocks randomized, in factorial project 3x3x2, with 4 repetitions. The

Massaru Kawatoko; Francisco Maximino Fernandes; Renato Mello Prado; Olair José Isepon


Produccion y Uso de Gliricidia: Manual de Campo (Gliricidia Production and Use).  

National Technical Information Service (NTIS)

Winrock International and the Nitrogen Fixing Tree Association (NFTA) have published NFTA's popular field manual Gliricidia Production and Use (Produccion y Uso de Gliricidia) in Spanish. Gliricidia is a versatile, fast-growing nitrogen fixing tropical tr...

J. Brewbaker P. Cheeke N. Glover C. Hughes D. Kass M. Kass B. Seibert J. Stewart J. Sumberg F. Wiersum



Velamo do campo: its volatile constituents, secretory elements, and biological activity.  


The volatile components from Croton campestris root bark were localized by an anatomical study and analyzed by gas chromatography-mass spectrometry for the first time. The roots of this plant showed secretory cells. These volatile constituents, isolated from the dichloromethane extract by hydrodistillation, were analyzed by gas chromatography-mass spectrometry. We found 69 components. They were characterized, and the major constituents of crude oil root barks were spathulenol (23.3%) and borneol (18.7%). Growth inhibitory activity of the active compounds in solution was evaluated by measuring minimal inhibitory concentrations using a broth micromethod. The minimal inhibitory concentration of root bark volatile constituents was 1.56 ?g/mL for Staphylococcus aureus, 3.125 ?g/mL for Candida albicans, and 6.25 ?g/mL for Aspergillusniger. PMID:22612296

El Babili, Fatiha; Roques, Christine; Haddioui, Laila; Bellvert, Floriant; Bertrand, Cédric; Chatelain, Christian



Notarios y agricultores: Crecimiento y atraso en el campo mexicano, 1780–1920  

Microsoft Academic Search

In 1909, with Mexico on the verge of revolution, a public notary from the central-plateau town of Jilotepec published a book that would deeply influence the tenor and tone of national resource policy in the twentieth century. Andres Molina Enriquez's Los Grandes Problemas Nacionales set forth a scathing critique of the hacienda system, faulting its feudalistic tendencies, venal landlords, and

Jeff M. Banister



Impact of natural climate change and historical land use on vegetation cover and geomorphological process dynamics in the Serra dos Órgãos mountain range in Rio de Janeiro State, Brazil  

NASA Astrophysics Data System (ADS)

The Serra dos Órgãos mountain range in the hinterland of Rio de Janeiro contains extensive remnants of the Atlantic Forest (Mata Atlântica) biome, which once covered about 1.5 million km² from Northeast to South Brazil and further inland to Paraguay and Argentina. As a result of historical deforestation and recent land use intensification processes today only 5 to 8% of the original Atlantic Forest remains. Despite the dramatic habitat loss and a high degree of forest fragmentation, the remnants are among the Earth’s most diverse habitats in terms of species richness. Furthermore, they are characterized by a high level of endemism. Therefore, the biome is considered a "hotspot of biodiversity". In the last years many efforts have been taken to investigate the Mata Atlântica biome in different spatial and time scales and from different scientific perspectives. We are working in the Atlantic Forest of Rio de Janeiro since 2004 and focus in our research particularly on Quaternary landscape evolution and landscape history. By means of landscape and soil archives we reconstruct changes in the landscape system, which are mainly the result of Quaternary climate variability, young tectonic uplift and human impact. The findings throw light on paleoecological conditions in the Late Quaternary and the impact of pre-colonial and colonial land use practices on these landscapes. In this context, a main focus is set on climate and human-driven changes of the vegetation cover and its consequences for the geomorphological process dynamics, in particular erosion and sedimentation processes. Research methods include geomorphological field studies, interpretation of satellite images, physical and chemical sediment and soil analyses as well as relative and absolute dating (Feo/Fed ratio and 14C dating). For the Late Quaternary landscape evolution, the findings are compared with results from paleoclimatic and paloecological investigations in Southeast and South Brazil using other dating techniques, such as pollen analysis. The impact of early civilizations on deforestation, forest fragmentation and geomorphological process dynamics is estimated on the basis of archaeological and anthropological findings. Furthermore, historical sources, such as written documents, maps, paintings and photographs, were collected and analysed to get a more detailed picture of the younger landscape history. As a result we present a landscape genetic model for the Late Quaternary in the Serra dos Órgãos mountain range and the Guanabara Basin. Based on a functional analysis of the natural process dynamics we reconstruct the human impact on the vegetation cover and related erosion and sedimentation processes in different time periods. According to this, the polycyclic climate fluctuations in the Pleistocene emerge as periods of stability and instability in the landscape system. During dry and cool periods of the Ice Ages forests drew back and erosion processes increased, causing higher erosion and deposition rates on slopes and stronger incision of river beds, accompanied by a deposition of gravels. The colluvial soils presently found in the mountain region were mainly deposited during the last instability period in the Late Pleistocene (Wisconsin) and Early Holocene. With the return of rainforests from their retreats under wetter climate conditions in the mid Holocene, slopes were stabilized under a dense vegetation cover. In the Late Holocene erosion conditions changed again with human deforestation and land use, which led to high erosion rates in the mountainous landscape. Concerning the human impact on rainforests and geomorphological process dynamics we give an overview of the pre-historical (Sambaqui, Tupi) and historical (colonial exploitation cycles) landscape transformation and degradation processes for different landscape units within the Serra dos Órgãos and its floodplains. The results not only give a detailed picture of historical land use patterns and landscape degradation processes, but also contribute to the understanding of rece

Nehren, U.; Sattler, D.; Heinrich, J.



Dos siglos de vida académica (Continuación)  

Microsoft Academic Search

Continuació dels articles encomanats al secretari (ara per un nou titular) en els quals es presenta un extracte dels fets a partir de les actes de les sessions de l'Acadèmia, fins al 1900, any a partir del qual ja es publicaven els extractes en el Butlletí. Aquí, com a final, s'hi presenten els dels anys del 1851 al 1900. I

Joaquim Miret i Sans; Ernest Moliner i Brasés



Dos siglos de vida académica (Continuación)  

Microsoft Academic Search

Continuació dels articles encomanats al secretari en els quals es presenta un extracte dels fets a partir de les actes de les sessions de l'Acadèmia, del 1729 fins al 1900, any a partir del qual ja es publicaven els extractes en el Butlletí. Aquí s'hi presenten els dels anys del 1791 al 1835, menys les dels 1808 al 21, les

Joaquim Miret i Sans



27 CFR 9.175 - Dos Rios.  

Code of Federal Regulations, 2013 CFR

...TREASURY ALCOHOL AMERICAN VITICULTURAL AREAS Approved American Viticultural Areas...Eel River and the Middle Fork of the Eel River...intersection with the eastern boundary of section...line, crossing the Middle Fork of the...



Evaluation of the DOS1600 Personal Dosimeter.  

National Technical Information Service (NTIS)

The U.S. Bureau of Mines (USBM) has tested a personal dosimeter for measuring radon decay products that is manufactured by Tom Scurry Associates. The tests were made to determine the accuracy of the dosimeter system for record keeping of radiation exposur...

R. F. Holub R. F. Droullard L. K. Killoran



Identifying DOS Attacks Using Data Pattern Analysis  

Microsoft Academic Search

During a denial of service attack, it is difficult for a firewall to differentiate legitimate packets from rogue packets, particularly in large networks carrying substantial levels of traffic. Large networks commonly use network intrusion detection systems to identify such attacks, however new viruses and worms can escape detection until their signatures are known and classified as an attack. Commonly used

Mohammed Salem; Helen Armstrong



Dos and Don'ts (Pregnancy)  


... and chemicals, such as cleaning solvents, lead and mercury, some insecticides, and paint. Pregnant women should avoid ... mackerel, shark, and tilefish, which are high in mercury. • Avoid cont act with rodents and with their ...



PubMed Central

Objetivo Realizar uma análise da inserção da ética e humanidades no currículo do Curso de Medicina da Escola Superior em Ciências da Saúde - ESCS, escola pública do Distrito Federal, Brasil, de forma a contribuir com o processo de gestão curricular. Metodologia O Estudo é de coorte e documental. Foram pesquisados 37 termos relacionados à ética e 36 referentes à humanização nos objetivos educacionais e conteúdo dos módulos temáticos, habilidades e atitudes e interação ensino-serviço-comunidade, de 1a a 4a série e no programa do internato no currículo (ano 2006) e no projeto pedagógico do Curso de Medicina (2001). Resultados Maior inserção da humanização, ética e bioética na 1a e 2a série, quando comparado à inserção na 3a e 4a série e no internato, (IC95%-?=0,034, pvalue=0,007). Unidade de habilidades e atitudes: freqüência das 3 temáticas no currículo da 1a a 4a séries (IC95%-?=0,026, pvalue=0,013). Quando comparada a inserção entre o internato e as quatro primeiras séries, observa-se que nestas a inserção da temática humanização é superior (IC95%-?=0,042, pvalue=0,029). Conclusão O currículo desenvolvido no ano de 2006 na ESCS apresentou correlação com o projeto pedagógico do curso e contemplou a temática de forma abrangente, em todas as séries e internato.

Novaes, Maria Rita Carvalho Garbi; Novaes, Luiz Carlos Garcez; Guilhem, Dirce; Lolas, Fernando; Silveira, Carla; Guiotti, Murilo



Abundancias químicas, campo magnético y composición isotópica en estrellas CP del grupo HgMn. I. HD 144206  

Microsoft Academic Search

Fine analyses of the HgMn CP star HD 144206 is presented using ATLAS9 model atmospheres which have the same bulk metallicity as the deduced abundances, and observational material of high resolution taken with the Telescopio Nazionale Galileo Galilei.

Z. López García; S. Malaroda; E. P. González; R. Tapia Vega; F. Leone



Riesgo laboral y residencial por exposición a campos electromagnéticos Labour and residential risk due to electromagnetic fields exposition  

Microsoft Academic Search

In the recent years, there has been an increment of ex- position to electromagnetic fields (EMF), specially residen- tial and labour exposure. Some scientist allege that exposure to electric and mag- netic fields generated mainly by electric power delivery sys- tems is responsible for health problems as reproductive dys- function, birth defects, neurological disorders and cancer. This article provides a

M. Física; Pastor Vega


Interactions between benthic macroinvertebrates and fishes in a low order stream in Campos de Cima da Serra, RS, Brazil.  


Benthic macroinvertebrates constitute the link between organic matter input in streams and fishes. However, the possibility of influence of predators on the invertebrates is still a controversial issue. The possibility of alteration of the benthic community by the modification in predation in a stream in the South of Brazil was studied by means of an exclusion experiment under semi-natural conditions. The exclusion showed an increase in the abundance of Plecoptera in the river where the rainbow trout was introduced, the larvae of Trichoptera also increased in abundance in the units of fish exclusion. This difference does not confirm the pressure applied by the trout on the benthic macro fauna due to differences in ichthyofauna and in the habitat of both rivers. Nevertheless, it points to the need for the development of studies concerning the trophic relations and the possible effects of this introduction in the aquatic biota. PMID:19197486

Winckler-Sosinski, L T; Silveira, T C L; Schulz, U H; Schwarzbold, A



Hot spot volcanic tracks and their implications for south American plate motion, Campos basin (Rio de Janeiro state), Brazil  

Microsoft Academic Search

The spatial and temporal arrangement of volcanism produced by hot spots potentially can reveal the history of lithosphere plate drift. From the age of these igneous bodies, it is possible to estimate not only the drift speed of plates but also the timing of eventual route changes. This article concentrates on the apparent link between both the Poços de Caldas–Cabo

Antonio Thomaz Filho; Pedro de Cesero; Ana Maria Mizusaki; Joana Gisbert Leão



Hot spot volcanic tracks and their implications for south American plate motion, Campos basin (Rio de Janeiro state), Brazil  

Microsoft Academic Search

The spatial and temporal arrangement of volcanism produced by hot spots potentially can reveal the history of lithosphere plate drift. From the age of these igneous bodies, it is possible to estimate not only the drift speed of plates but also the timing of eventual route changes. This article concentrates on the apparent link between both the Poços de Caldas

Antonio Thomaz Filho; Pedro De Cesero; Ana Maria Mizusaki; Joana Gisbert Leão



78 FR 2423 - Draft Environmental Impact Statement (DEIS) for the Proposed Shu'luuk Wind Project on the Campo...  

Federal Register 2010, 2011, 2012, 2013

...alternative that may include some solar energy generation. The approval...Reservation from the project collector substation to a San Diego...combination with up to 40 1-MW solar photovoltaic (PV) panels (totaling 40 MW from solar). Each turbine would...



Simulação de Escoamentos de Fumaça ou Gás em Grandes Ambientes com Obstáculos sob a Ação de Campos de Ventos  

Microsoft Academic Search

In this work, a computational model is proposed to simulation the large-scale smoke or gas flow in great environments in real time for given obstacle configuration and wind fields. These, modify the natural isotropic diffusion of the gases or smoke flow, dominating directionally its propagation. Moreover, the winds interaction with the obstacles may cause strong diffusion due to turbulent movements,

Katia Hardt; João Goedert; Luiz Paulo; Luna de Oliveira


Biological activities of ENEA in Emilia-Romagna region. (Attivita' in campo biologico dell'ENEA in Emilia-Romagna).  

National Technical Information Service (NTIS)

This report deals with the activities in the biologic field of the ENEA in the Emilia-Romagna region with some original papers of the Environmental Department researchers. These topics are treated: sewage purification and treatment; primary productivity i...

A. Andreotti G. Bortone S. Bruni M. Calamosca R. D'Orazi




Microsoft Academic Search

The optimization of the hydrocarbon's explotation in a field development project may be very complex, due to the uncertainties on the reservoir characterization. Different strategies may present great variations on fluid production (oil, water and gas) and on the costs and profits related to the explotation. A procedure to select strategies must consider the possibilities, compare them and choose the

Cristina C. Mezzomo; Álvaro F. Martini; Denis J. Schiozer


Evaluation on the effectiveness of actions for controlling infestation by rodents in Campo Limpo region, Sao Paulo Municipality, Brazil.  


Rodents are responsible for the transmission of more than 60 diseases both to human beings and to domestic animals. The increase in rodent infestation in a given area brings several health problems to the nearby population. Thus, when infestation increases, it is time to take intervention measures. Although many countries have implemented programs aimed at controlling rodent infestation, literature on studies evaluating the effectiveness of intervention measures in urban areas is scarce. Aimed at contributing to the understanding of rodents' population dynamics in urban areas, the objective of this study was to evaluate the effectiveness of the control methods proposed by "Programa de Vigilancia e Controle de Roedores do Municipio de Sao Paulo" (Program for Rodents Surveillance and Control in Sao Paulo Municipality), conducted on Jardim Comercial District. As a first step, a survey to assess infestation rates was conducted in 1529 dwellings located in the area studied. After that, a chemical control upon rodents was accomplished in every dwelling infested. One week and six months after completion of control measures, a new evaluation on infestation rates was carried out, in order to verify the effectiveness of the procedures taken and to estimate the re-infestation capacity. Initial infestation rate was 40.0%, and the final infestation rate, 14.4%. Therefore, the effectiveness of the control methods utilized was 63.8%. It can thus be concluded that the control methods applied were quite effective. PMID:20183196

de Masi, Eduardo; Vilaça, Pedro José; Razzolini, Maria Tereza Pepe



78 FR 37789 - Juan Narcizo Oyervides-Campos, Inmate Number #86526-279, Correctional Institution Reeves I & II...  

Federal Register 2010, 2011, 2012, 2013

...exported and attempting to export and attempting to cause to be exported from the United States to Mexico thirteen semiautomatic rifles, which were designated as defense articles on the United States Munitions List, without having first obtained from the...



A Rede Interartística Música-Cinema-Arte Seqüencial- Literatura em The Adventures of Lucky Pierre  

Microsoft Academic Search

RESUMO : Este trabalho examina o romance hiperficcional The Adven- tures of Lucky Pierre, de Robert Coover, como território interartístico no qual a escala musical serve de ponto de partida\\/fuga para o entrecruza- mento de linguagens, convenções e materialidades de outros campos ar- tísticos. Entre eles, o cinema, a arte seqüencial dos quadrinhos e a lite- ratura. A série de

Isabella Vieira de Bem



Microsoft Academic Search

La palabra viaje se compone de dos términos derivados del latín, vía que significa camino y cum que hace referencia a “contigo”. A diferencia de la peregrinación que significa “ir por el campo, del latín per agrere”, el viaje tiene como significación una especie de “acompañamiento”. Ello no supone, que viajar sea desplazarse acompañado necesariamente, sino por el contrario, que

Maximiliano E. Korstanje



Thermospheric neutral winds at low latitudes during the September-October 1986 Sundial campaign - Optical interferometer results  

Microsoft Academic Search

Results of Fabry-Perot interferometer determinations of near-equatorial thermospheric temperatures and winds are presented for the late September and early October 1986 period. Measurements were made from Arequipa, Peru and Sao Jose dos Campos, Brazil. The thermospheric temperatures during the night at Sao Jose averaged 915 K, with a measurement uncertainty of + or - 75 K. At both Arequipa and

M. A. Biondi; J. W. Meriwether Jr.; Y. Sahai; H. Takahashi



Salud ambiental urbana: aproximaciones antropológicas y epidemológicas sobre la evaluación de un programa de alcantarillado en un contexto de grandes desigualdades sociales  

Microsoft Academic Search

El objetivo de este artículo es analizar cómo las desigualdades sociales influyen en la salud ambiental urbana dentro de un contexto de desarrollo de saneamiento básico. El desafío principal de este texto es aplicar teóricamente este análisis desde la articulación de dos campos de saber diferenciados, la antropología médica y la epidemiología social, que comparten espacios de investigación comunes para

Cristina Larrea Killinger; Mauricio L. Barreto



A taxonomic review of species of the Neotropical pericaline genus Oreodicastes Maindron, 1905 (Coleoptera: Carabidae: Lebiini)  

Microsoft Academic Search

Based on adult character states, a key is provided to the seven known species of Oreodicastes Maindron 1905 (type species Oxyglossus subcyaneus Chaudoir 1843). Two new species (with type locality) are described: 0. virginia (Fazenda dos Campos, Virginia, state of Minas Gerais, Brazil) and 0. zikani (Macieiras, Itatihia, state of Rio de Janeiro, Brazil).

Danny Shpeley; George E. Ball



Micronucleus test and observation of nuclear alterations in erythrocytes of Nile tilapia exposed to waters affected by refinery effluent  

Microsoft Academic Search

Micronuclei and nuclear alterations tests were performed on erythrocytes of Oreochromis niloticus (Perciformes, Cichlidae) in order to evaluate the water quality from Paraíba do Sul river, in an area affected by effluents from an oil shale processing plant, located in the city of São José dos Campos, Brazil-SP. Water samples were collected on 2004 May and August (dry season) and

Tatiana da Silva Souza; Carmem S. Fontanetti



Caracterização da reflectância espectral de materiais urbanos com imagens do sensor HSS  

Microsoft Academic Search

This paper describes spectral reflectance characteristics of urban area materials measured with the airborne HSS (Hyperspectral Scanner System)\\/SIVAM. A 2.7 m spatial resolution HSS radiance image of São José dos Campos city, in São Paulo state (Brazil), was atmospherically corrected using FLAASH algorithm to retrieve surface reflectance. An EFFORT polishing was applied to minimize artifacts due to atmospheric correction. Image

Romero da Costa Moreira; Lênio Soares Galvão


Ionospheric studies using a low-latitude ionospheric model (LION-model) and ground-based ionosonde observations  

Microsoft Academic Search

Ionospheric observations made with ionosondes of the type CADI at S a o Jos e dos Campos 23 2 o S 45 9 o W dip latitude 17 6 o S and at Palmas 10 2 S 48 2 W dip latitude 5 7 S Brazil under conditions of high and low solar activity are presented and compared with ionospheric

V. G. Pillat; J. A. Bittencourt; P. R. Fagundes




Microsoft Academic Search

The city of São José dos Campos (São Paulo, Brazil) in recent years has shown strong growth and current increase in industrial economy, leading to a sharp urban development and consequent problems of air pollution. The ozone is a major greenhouse gas, present in the troposphere by photochemical reactions in natural emissions of anthropogenic and biogenic hydrocarbons such as volatile

A. Dos Santos Zepka; A. B. Sales; P. C. Alvalá



X-Ray Fluxes in the Atmosphere.  

National Technical Information Service (NTIS)

A short review of X-rays measurements in the atmosphere is presented. In this context, the measurements obtained with NaI (Tl) scintillation detectors on board stratospheric balloons launched from Sao Jose dos Campos - Brazil in 1981, are considered as a ...

O. Pinto Junior W. D. G. Alarcon



Entrenamiento en habilidades sociales: un método de enseñanza- aprendizaje para desarrollar las habilidades de comunicación interpersonal en el área de enfermería  

Microsoft Academic Search

Constituye el presente estudio una experiencia sobre la validez del entrenamiento en habilidades so - ciales en el área de la atención a pacientes en el campo de la enfermería. El estudio se ha realizado con un procedimiento experimental en el que se han utilizado dos grupos de alumnos de enfermería, uno de ellos figuraba como grupo control. Ambos grupos

Manuel Marín Sánchez; José M; León Rubio



Microsoft Academic Search

The present study aims at analyzing, after a previous selection, the efficiency of two different types of anti -graffiti products available in the Brazilian market, by means of molding mortar substrata coated by three types of ceramic boards and protected by two types of anti - graffiti products. Later on, it was made the measurement of the parameters of color

M. M. Resende; J. S. Medeiros



Microsoft Academic Search

SUMMARY The angular value of lumbar lordosis and the role of vertebral bodies and intervertebral discs in its constitution were studied in normal individuals. X-Ray images of lumbar spine were studied in 350 normal and asymptomatic individuals, ages ranging from 18 to 50 years old (average 29.0 years old ± 8.24), being 143 males and 207 females. The lumbosacral (L1S1)



Estudo de não gaussianidade nas anisotropias da RCF medidas Wmap  

NASA Astrophysics Data System (ADS)

A investigação do campo de flutuações da Radiação Cósmica de Fundo (RCF) pode oferecer um importante teste para os modelos cosmológicos que descrevem a origem e a evolução das flutuações primordiais. De um lado, apresenta-se o modelo inflacionário que prevê um espectro de flutuações adiabáticas distribuídas segundo uma gaussiana e, de outro, os modelos de defeitos topológicos (dentre outros) que descrevem um mecanismo para a geração de flutuações de isocurvatura que obedecem a uma distribuição não gaussiana. Este trabalho tem como objetivo caracterizar traços do modelo não gaussiano de campo misto (entre flutuações adiabáticas e de isocurvatura) nos mapas do Wilkinson Microwave Anisotropy Probe (WMAP). Simulações das anisotropias da RCF no contexto de mistura indicam traços marcantes na distribuição das flutuações de temperatura, mesmo quando consideradas pequenas contribuições do campo de isocurvatura (da ordem de 0.001). O efeito da mistura entre os campos resulta na transferência de potência de flutuações em escalas angulares intermediárias para flutuações em pequenas escalas angulares. Este efeito pode ser caracterizado pela relação entre as amplitudes dos primeiros picos acústicos no espectro de potência da RCF. Neste trabalho, investigamos a contribuição do campo de isocurvatura, no contexto de mistura, sobre as observações recentes da RCF realizadas pelo WMAP. As previsões do modelo de campo misto, uma vez confrontadas com as observações em pequenas escalas angulares, podem ajudar a revelar a natureza das flutuações primordiais.

Andrade, A. P. A.; Wuensche, C. A.; Ribeiro, A. L. B.



Corumbiara: o massacre dos camponeses. Rondônia\\/Brasil 1995  

Microsoft Academic Search

O massacre de Corumbiara mostra que o conflito na fazenda Santa Elina tem as mesmas características de milhares de conflitos por terra que aconteceram e acontecem no Brasil, e que o massacre de Corumbiara tem a mesma gênese de tantos outros massacres acontecidos contra camponeses, posseiros e índios ao longo de quinhentos anos de luta pelo acesso e posse à

Helena Angélica de Mesquita



Document Image Archive Transfer from DOS to Unix.  

National Technical Information Service (NTIS)

An R&D division of the National Library of Medicine has developed a prototype system for automated document image delivery as an adjunct to the labor-intensive manual interlibrary loan service of the library. The document image archive is implemented by a...

S. E. Hauser M. J. Gill G. R. Thoma



Spread-Identity mechanisms for DOS resilience and Security  

Microsoft Academic Search

The explosive growth in wireless (and wired) networking technologies and services indicates that multiple means of network connectivity will become available in the near future. For example, stationary and mobile hosts currently support Internet access via wired LANs, Wireless LANs\\/PANs (e.g., 802.11x, 802.15) or wide area wireless cellular phone and data networks (like GSM). In essence, heterogeneous multi-homing is now

Dhananjay S. Phatak



Dos and don'ts in response priming research  

PubMed Central

Response priming is a well-understood but sparsely employed paradigm in cognitive science. The method is powerful and well-suited for exploring early visuomotor processing in a wide range of tasks and research fields. Moreover, response priming can be dissociated from visual awareness, possibly because it is based on the first sweep of feedforward processing of primes and targets. This makes it a theoretically interesting device for separating conscious and unconscious vision. We discuss the major opportunities of the paradigm and give specific recommendations (e.g., tracing the time-course of priming in parametric experiments). Also, we point out typical confounds, design flaws, and data processing artifacts.

Schmidt, Filipp; Haberkamp, Anke; Schmidt, Thomas



Exercise beyond menopause: Dos and Don'ts.  


With a significant number of women belonging to the status of menopause and beyond, it is imperative to plan a comprehensive health program for them, including lifestyle modifications. Exercise is an integral part of the strategy. The benefits are many, most important being maintenance of muscle mass and thereby the bone mass and strength. The exercise program for postmenopausal women should include the endurance exercise (aerobic), strength exercise and balance exercise; it should aim for two hours and 30 minutes of moderate aerobic activity each week. Every woman should be aware of her target heart rate range and should track the intensity of exercise employing the talk test. Other deep breathing, yoga and stretching exercises can help to manage the stress of life and menopause-related symptoms. Exercises for women with osteoporosis should not include high impact aerobics or activities in which a fall is likely. The women and the treating medical practitioner should also be aware of the warning symptoms and contraindications regarding exercise prescription in women beyond menopause. The role of exercise in hot flashes, however, remains inconclusive. Overall, exercising beyond menopause is the only noncontroversial and beneficial aspect of lifestyle modification and must be opted by all. PMID:22408332

Mishra, Nalini; Mishra, V N; Devanshi



Los Dos Mundos: Rural Mexican Americans, Another America.  

ERIC Educational Resources Information Center

|This book explores race relations between Mexican Americans and Anglo Americans in "Middlewest," a fictitious name for an actual rural Idaho community with the highest proportion of Mexican Americans in the state. Many Mexican Americans in this predominantly agricultural area are current or former migrant workers. The first chapter describes…

Baker, Richard


Systems under Intelligent Distributed DoS Attacks  

Microsoft Academic Search

In the framework of a set of clients communicating with a critical server over the Internet, a recent approach to protect communication from Distributed Denial of Service (DDoS) attacks involves the usage of overlay systems. SOS, MAYDAY and I3 are such systems. The overlay system serves as an intermediate forwarding system between the clients and the server, where the systems

Xun Wang; Sriram Chellappan; Phillip Boyer; Dong Xuan


Chave de identifi cação dos Ctenophora da costa brasileira  

Microsoft Academic Search

Oliveira, O.M.P., Mianzan, H., Migotto, A.E. & Marques, A.C. Identifi cation key for the ctenophores from Brazilian coast. Biota Neotrop. Sep\\/Dez 2007 vol. 7, no. 3 http:\\/\\/\\/v7n3\\/pt\\/ abstract?identifi cation-key+bn03507032007. ISSN 1676-0603. Although ctenophores are abundant and ecologically important in the marine environment, they are poorly known in the Brazilian coast. The present study is a taxonomic key for the ctenophores

Otto Müller; Patrão de Oliveira; Hermes Mianzan; Alvaro Esteves Migotto; Antonio Carlos Marques


Dos and Don'ts of intermittent self-catheterisation.  


Clean intermittent self-catheterisation (CISC) is often a treatment option for both men and women with urinary retention and/or incontinence, particularly those with neurogenic bladder dysfunction. PMID:24121767

Woodward, Sue



ORAMUS(DOS). Ozone Risk AssessMent Utilities  

SciTech Connect

ORAMUS is a user-friendly, menu-driven software system that calculates and displays user-selected risk estimates for health effects attributable to short-term exposure to tropospheric ozone. Inputs to the risk assessment are estimates of exposure to ozone and exposure-response relationships to produce overall risk estimates in the form of probability distributions. Three fundamental models are included: headcount risk, benchmark risk, and hospital admissions. Exposure-response relationships are based on results of controlled human exposure studies. Exposure estimates are based on the EPA`s probabilistic national ambient air quality standards (NAAQS) exposure model, pNEM/Osub3, which simulates air quality associated with attainment of alternative NAAQS. Using ORAMUS, risk results for 27 air quality scenarios, air quality in 9 urban areas, 33 acute health endpoints, and 4 chronic health endpoints can be calculated.

Whitfield, R.G.; Jusko, M.J. [Argonne National Lab., IL (United States); Biller, W.F. [William F. Biller Consultants, East Brunswick, NJ (United States)



Dos Hermanas Chicanas: Overcoming Barriers to Professional Advancement  

ERIC Educational Resources Information Center

|Women and ethnic minorities face steep barriers to professional advancement, and those who rise to the executive level typically use a variety of strategies to overcome obstacles in their way. This study first reviewed the literature on barriers to professional advancement for women and ethnic minorities and the strategies that they report using…

Prospero, Moises



Metahistorias medievales: Dos heterolog\\\\'\\\\i as cr\\\\'onicas  

Microsoft Academic Search

My thesis is a metahistorical analysis of the late 14th and early 15th century works of Pero Lopez de Ayala and Leonor Lopez de Cordoba. It focuses on the relationship between history and fiction within these texts as well as between the texts themselves and the mythico-poetical and cultural structures which inform them.^ The canonical chronicles of Ayala reflect the

Ruth Lubenow Haji-Ghassemi



Sinopse dos marcos em matéria de segurança alimentar na ...  

Center for Food Safety and Applied Nutrition (CFSAN)

... 1995 Seafood Hazard Analysis Critical Control Point (Ponto de controle crítico para análise de risco em frutos do mar, HACCP na sigla em inglês ... More results from


Fotodermatitis de contacto por dexketoprofeno. Descripción de dos casos  

Microsoft Academic Search

Dexketoprofen is the active isomer of ketoprofen and likewise belongs to the group of non-steoidal anti-inflammatory drugs (NSAIDs) derived from propionic acid. We have recently studied, using patch and photopatch tests, two women with a characteristic clinical picture of contact photo-dermatitis who had used topical dexketoprofen (Enangel®) in the days before onset of the rash. In both cases we used

R. González-Pérez; I. Trébol; I. García-Ríos; M. A. Arregui; R. Soloeta-Arechavala



Animation of Disk Data Storage under MS-DOS  

NSDL National Science Digital Library

This is an animation with interactive buttons allowing the user to step through the components of a formatted disk. The illustration is that of a floppy disk, but the ideas apply to almost any disk format.

Ward, Charles




Microsoft Academic Search

This paper presents the origins and theoretical approachs for the study of the ceramists pre-historical groups of Brasilian Northeast. The studies concerning these groups, begining with evolutionist, diffusionist and arthistic aproachs, are going through a new critical reflexion phase, in which the cultural traces are viemed in a system perspectives within a ecological and archaeological framework to prevent the isolated



Suspeita de febre familiar dos cães shar-peis chineses  

Microsoft Academic Search

Chinese Shar-pei familial fever is a breed- associated hereditary autosomal recessive disease of Chinese Shar-pei dogs. A case of generalized amyloidosis in a 3- year-old female Chinese Shar-pei dog with a tentative diagnosis of familial Chinese Shar-pei fever is described. This animal had a clinical history of episodic bilateral swelling of the tarsal joints since 7-month-old. Vomiting, diarrhea, anorexia and

Médico Veterinário


Simulacao de aprendizado em teoria dos jogos aplicando modelos  

Microsoft Academic Search

Nos jogos repetidos com dois jogadores, pode- se escolher as chamadas estrategias mistas. Pesquisadores tem estudado os processos de aprendizado neste tipo de jogos, a saber, Fuden- berg, Quaegheber e de Cooman, entre outros. Serao apresentadas simulacoes de duas aborda- gens de aprendizado para jogos repetidos de dois jogadores: uma com modelo preciso de Dirich- let (MPD) e outra com

Lu ´ õs; H. de Santana; Francisco Ramos



Microsoft Academic Search

O objetivo desse trabalho é introduzir a memética, as investigações sobre os memes, unidades culturais de imitação que pretensamente são os átomos da cultura e da história. Partindo de uma analogia com a teoria do gene como nível fundamental de seleção, popularizada como a teoria do gene egoísta, a memética pretende propor modelos explicativos que podem ser úteis para compreender

Ricardo Waizbort


Histórias infantis: um recurso para a compreensão dos estados mentais  

Microsoft Academic Search

Children's storybooks: a resource to the understanding of mental states. This study examined a sample of 100 national children's storybooks directed to pre-school children aged four to six years to identify words\\/ utterances that denote mental states according to three views of analysis: via words and expressions in the text; via the pictures; and via presence of irony or false

Marisa Cosenza Rodrigues; Jacqueline Silva Rubac



The dos and do knots of central venous catheterization.  


Central venous catheterization plays an important role in patients with end-stage renal disease undergoing hemodialysis. Placement of a right subclavian hemodialysis catheter was complicated by looping and entrapment of the guidewire. Computed tomographic and three-dimensional scans were essential in locating and determining that the guidewire was outside the vessel. PMID:22414709

Vetrugno, Luigi; Piccoli, Gianluca; Costa, Maria Gabriella; Pompei, Livia; Chiarandini, Paolo; Morelli, Angelo; Della Rocca, Giorgio



Observations of GW\\/TID oscillations in the F2 layer at low latitude during high and low solar activity, geomagnetic quiet and disturbed periods  

Microsoft Academic Search

Ionospheric vertical sounding observations, using a digital ionosonde, are being carried out on a routine basis at Sao Jose dos Campos (23.2°S, 45.9°W; dip latitude 17.6°S, hereafter referred to as SJC), Brazil, located under the southern crest of the equatorial ionization anomaly (EIA), since August 2000. In this paper, we present and discuss the seasonal variation of gravity wave (GW)

V. Klausner; P. R. Fagundes; Y. Sahai; C. M. Wrasse; V. G. Pillat; F. Becker-Guedes



Quantificação de clorofilas em folhas de macieiras 'Royal Gala' e 'Fuji' com métodos ópticos não-destrutivos  

Microsoft Academic Search

RESUMO - O método-padrão para a quantificação de clorofilas em folhas é destrutivo e relativamente demorado. Com o advento dos medidores portáteis, a quantificação de clorofilas tornou-se fácil e rápida, podendo ser realizada de forma não-destrutiva a campo. Colorímetros também podem ser utilizados para a avaliação não-destrutiva da coloração de tecidos vegetais, e, portanto, para a quantificação de clorofilas em

Cassandro Vidal Talamini do Amarante; Cristiano André Steffens; Odimar Zanuzo Zanardi; Erlani de Oliveira Alves



Observations of daytime F2-layer stratification under the southern crest of the equatorial ionization anomaly region  

Microsoft Academic Search

Ionospheric vertical sounding observations are being carried out at Sao Jose dos Campos (23.2°S, 45.9°W; dip latitude 17.6°S), Brazil, under the southern crest of the equatorial ionization anomaly (EIA) since August 2000. In this paper, we present and discuss the observations of daytime F2-layer stratification near the crest of EIA, for the first time, under magnetically quiet high solar activity

P. R. Fagundes; V. Klausner; Y. Sahai; V. G. Pillat; F. Becker-Guedes; F. C. P. Bertoni; M. J. A. Bolzan; J. R. Abalde



Effectiveness of low-cost thermal vacuum tests of a micro-satellite  

Microsoft Academic Search

This paper presents the experience gained at the Integration and Tests Laboratory—LIT, National Institute for Space Research—INPE, in São José dos Campos, SP, from the thermal vacuum tests campaign of the SATEC protoflight spacecraft, held from February 6th to 12th, 2003. The Satélite Tecnológico (SATEC) is a micro-satellite made in Brazil, as a payload for the Brazilian launching vehicle VLS-1.3,

J. S. Almeida; M. B. Santos; D. L. Panissi; E. C. Garcia



Effectiveness of low-cost thermal vacuum tests of a micro-satellite  

Microsoft Academic Search

This paper presents the experience gained at the Integration and Tests Laboratory---LIT, National Institute for Space Research---INPE, in São José dos Campos, SP, from the thermal vacuum tests campaign of the SATEC protoflight spacecraft, held from February 6th to 12th, 2003. The Satélite Tecnológico (SATEC) is a micro-satellite made in Brazil, as a payload for the Brazilian launching vehicle VLS-1.3,

J. S. Almeida; M. B. Santos; D. L. Panissi; E. C. Garcia




Microsoft Academic Search

Evaluation of two herbicides and two application methods to control razorgrass (Paspalum virgatum) in grasslands. Field tests were conducted in San Carlos, Alajuela, to evaluate the efficacy of both glyphosate and fluazifop- butyl to control razorgrass (Paspalum virgatum) in grasslands. Glyphosate was :1,;) applied at 1.2% and 33% with a knapsack sprayer and a rope-wick applicator, ;.1., respectively. Fluazifop-butyl was

Milton Villarreal; Warner Vargas


Influência dos exercícios perineais e dos cones vaginais, associados à correção postural, no tratamento da incontinência urinária feminina  

Microsoft Academic Search

Influence of Perineal Exercises and Vaginal Cones in Association with Corrective Postural Exercises, on Female Urinary Incontinence Treatment Objective: To investigate the influence of perineal exercises and vaginal cones in association with corrective postural exercises for static normalization of the pelvis, on female urinary incontinence treatment. Method: Twelve women with urinary incontinence complaints (mean age: 52.3 ± 9.7) were assessed

LM Matheus; CF Mazzari; RA Mesquita; J Oliveira




Microsoft Academic Search

Two types of data-collectlng systems, field diarles and time sampling of behavíor, were used to study a juvenile gang in a marginal com- munity of Mexico City. These two ways of gathering data give us ím- portant Information conceming the gang. wlth regards lo social functio- níng, víolence, delinquency and dmg usage. Field diaries offer us a panoramlc, global vision


Resource management and fertility in Mexico's Sian Ka'an Biosphere Reserve: Campos, cash, and contraception in the lobster-fishing village of Punta Allen  

PubMed Central

This case study examines the link between marine resource management, and the universal contraceptive use among married couples in the lobster- fishing village of Punta Allen, located in the Sian Ka’an Biosphere Reserve, Quintana Roo, Mexico. Several reasons appear to contribute to small desired and actual family sizes. Some of these include a medical clinic staff effective in promoting family planning, cooperative and private resource ownership, changing cultural attitudes, geographical limitations to population and economic growth, and a desire to conserve the environment for aesthetic and economic motives. Lastly, families desired to preserve a sustained balance between benefiting from lobster harvests today and safeguarding this marine resource for their children in the future.

Carr, David L.



Elastic Stress Concentration of a Cruciform Joint Upon Bending Fattore di Intaglio in Campo Elastico Per Giunti a Croce Sollecitati a Flessione.  

National Technical Information Service (NTIS)

The influence of the geometry on the elastic stress concentration factor K sub t of a cruciform welded joint in bending was investigated. Complete penetration was assumed for the analysis, which was performed using the finite element method, with isoparam...

B. Atzori G. Monno



Apreciaciones generales sobre Cast. /X/ Cat. [X] en el campo de Tarragona (General Considerations on the Castilian /X/ and the Catalan [X] in Tarragona).  

ERIC Educational Resources Information Center

|Throughout the centuries in Spain, the Castilians and Catalans have shared cultural, social, political, generational, and human experiences. This exchange was bound to have a linguistic influence of the Castilian on the Catalan language. (In Catalonia bilingualism is prevalent, and in Castile it is not.) While there have been lexical changes, the…

Cerda Masso, Ramon



Restaurant and Champagne Lounge, Campo Santa Margherita, featuring Rizman Putra The Hyperbolic Alpha Male performance, and Giorgio Pulini aka RACH3 live dj set  

Microsoft Academic Search

Migration Addicts began as an ongoing project two years ago in Shanghai, investigating how migration re-determines issues related to human identity, gender and spiritual needs. The fast expansion of urban spaces, following the model of big cities, has led to new social conflicts within the social structure. Recently the tension between Western and Chinese traditional values and lifestyles, as well

Biljana Ciric; Htein Lin; Campo San Barnaba; Jin Shan; Campo San Polo; Li Pinghu; Campo San Salvatore; Huang Kui; Campo San Maurizio; Miljohn Ruperto; Josefina Posch; Campo Santo Stefano; Mogas Station; Belén Cerezo; Campo San Bortolomio; Yap Sau Bin; Piazza San Marco; Hasan Elahi; Campo Santa Margherita; Rizman Putra; Champagne Lounge



Bayesian spatial prediction of the area affected by drilling discharges from an exploratory well using water-based and non-aqueous-based fluids in Campos Basin, Brazil  

NASA Astrophysics Data System (ADS)

Toxic drilling fluids and cutting discharges from oil and gas wells adversely affect local environment near the well site. To determine their effects on benthic communities, it is essential to know both the fate of the discharged materials and the chemical concentrations to which biota were exposed during and after drilling. This paper describes a mapping procedure using Bayesian spatial models to define the deposition area of drilling cuttings and fluids from an exploratory well in a deep-sea site in the Campus Basin, RJ, Brazil, taking into account the concentrations of barium and light hydrocarbons used as chemical tracers. The statistical procedures used allow comparisons between sampled sites and the prediction of results at unsampled sites, as well as the delineation of affected areas. The probable impact of the use of non-aqueous fluid (NAF) was measured through observed changes in sea-floor sediments by using Before-After Control-Impact comparisons in a study with three moments: one before drilling and two after drilling.

Pulgati, F. H.; Fachel, J. M. G.; Ayup-Zouain, R. N.; Landau, L.



O ambiente de binárias de pequena massa em formação: o caso do glóbulo cometário CG30 e IRAS08076-3556  

NASA Astrophysics Data System (ADS)

Neste trabalho, combinamos observações de polarização linear no óptico (banda R), dados no infravermelho distante (IRAS) e observações de transições moleculares em radiofreqüências (CO e espécies isotópicas, HCN e HCO+) para analisar o glóbulo cometário (GC) CG30 (na região da IRAS Vela Shell), que apresenta objetos Herbig-Haro e ejeções de matéria, além de uma fonte pontual IRAS em seu interior. Os objetivos deste estudo são: determinar a eficiência de formação estelar nos glóbulos cometários, através da relação entre a massa total do GC e da massa das estrelas em formação; determinar como o campo magnético influencia na formação de estrelas no interior destes objetos; e analisar as modificações que ejeções de matéria de estrelas em formação causam no gás e no campo magnético dos GCs. Combinando nossos dados com trabalhos já publicados, mostramos que CG30 tem uma eficiência de formação estelar em torno de 3%; que o campo magnético é importante na manutenção da estrutura global do GC e demonstra sinais de torção e compressão; e que a ejeção bipolar de matéria das estrelas do par formam uma ejeção quadripolar, a qual influencia na densidade e temperatura do gás e no grau de polarização dos grãos de poeira associados ao gás do GC.

Hickel, G. R.; Vilas-Boas, J. W. S.



Nighttime thermospheric meridional neutral winds inferred from ionospheric h?F and hpF2 data  

NASA Astrophysics Data System (ADS)

Nighttime thermospheric meridional winds aligned to the magnetic meridian have been inferred using h?F and hpF2 ionosonde data taken from two equatorial stations, Manaus (2.9°S, 60.0°W, dip latitude 6.0°N) and Palmas (10.17°S, 48.2°W, dip latitude 6.2°S), and one low-latitude station, Sao Jose dos Campos (23.21°S, 45.86°W, dip latitude 17.26°S), during geomagnetic quiet days of August and September, 2002. Using an extension of the ionospheric servo model and a simple formulation of the diffusive vertical drift velocity, the magnetic meridional component of the thermospheric neutral winds is inferred, respectively, at the peak (hpF2) and at the base (h?F) heights of the F region over Sao Jose dos Campos. An approach has been included in the models to derive the effects of the electrodynamic drift over Sao Jose dos Campos from the time derivative of hpF2 and h?F observed at the equatorial stations. The magnetic meridional winds inferred from the two methods, for the months of August and September, are compared with winds calculated using the HWM-90 model and with measurements from Fabry Perot technique. The results show varying agreements and disagreements. Meridional winds calculated from hpF2 ionospheric data (servo model) may produce errors of about 59 m/s, whereas the method calculated from the F-region base height (h?F) ionospheric data gives errors of about 69 m/s during the occurrence of equatorial spread-F.

Muella, M. T. A. H.; Fagundes, P. R.; Bittencourt, J. A.; Sahai, Y.; Lima, W. L. C.; Becker-Guedes, F.; Pillat, V. G.


Nighttime thermospheric meridional neutral winds inferred from ionospheric h'F and hpF2 data  

Microsoft Academic Search

Nighttime thermospheric meridional winds aligned to the magnetic meridian have been inferred using h'F and hpF2 ionosonde data taken from two equatorial stations, Manaus (2.9°S, 60.0°W, dip latitude 6.0°N) and Palmas (10.17°S, 48.2°W, dip latitude 6.2°S), and one low-latitude station, Sao Jose dos Campos (23.21°S, 45.86°W, dip latitude 17.26°S), during geomagnetic quiet days of August and September, 2002. Using an

M. T. A. H. Muella; P. R. Fagundes; J. A. Bittencourt; Y. Sahai; W. L. C. Lima; F. Becker-Guedes; V. G. Pillat



Nighttime thermospheric meridional neutral winds inferred from ionospheric h? F and hpF2 data  

Microsoft Academic Search

Nighttime thermospheric meridional winds aligned to the magnetic meridian have been inferred using h?F and hpF2 ionosonde data taken from two equatorial stations, Manaus (2.9°S, 60.0°W, dip latitude 6.0°N) and Palmas (10.17°S, 48.2°W, dip latitude 6.2°S), and one low-latitude station, Sao Jose dos Campos (23.21°S, 45.86°W, dip latitude 17.26°S), during geomagnetic quiet days of August and September, 2002. Using an

M. T. A. H. Muella; P. R. Fagundes; J. A. Bittencourt; Y. Sahai; W. L. C. Lima; F. Becker-Guedes; V. G. Pillat



Topical Calendula officinalis L. successfully treated exfoliative cheilitis: a case report  

PubMed Central

Authors describe a case of recurrent exfoliative cheilitis that responded to treatment with a standardized topical preparation of Calendula officinalis L. An eighteen-year-old man was referred to UNESP - São Paulo State University, Department of Biosciences and Oral Diagnosis, São José dos Campos Dental School to investigate a chronic dry scaling lesion on his lips. The patient's main chief was aesthetic compromising. Corticoid therapy was suspended and Calendula officinalis ointment 10% for ad libitum use has been prescribed. The results presented allow the authors to consider Calendula officinalis L. as a potential therapy in cases of cheilitis exfoliative.



Solar tide in the atmospheric sodium layer  

NASA Astrophysics Data System (ADS)

Mesospheric sodium layer observations obtained during day and night with INPE's laser radar at Sao Jose dos Campos, SP (23 deg 12 min S, 45 deg 51 min W) are presented. The average variation of the layer during 24 hours displays oscillations with 12 hour and 24 hour periods. The results are interpreted with the aid of a theory of atmospheric wave propagation for minor constituent layers. Oscillations are separated into 24 hour and 12 hour components. The 24 hour component shows the characteristics of an evanescent mode with maximum density occurring at 3 hours. The 12 hour component shows propagation of phase with height and a vertical wavelength of approximately 54 km.

Batista, P. P.; Clemesha, B. R.; Kirchhoff, V. W. J. H.; Simonich, D. M.



A FORMAÇÃO TEOLÓGICA DOS LEIGOS PARA O EXERCÍCIO DOS MINISTÉRIOS ECLESIAIS E AS PRÁTICAS SOCIAIS The impact of the western religion orientalization processes. A survey with university students  

Microsoft Academic Search

It is discussed the proposal of theological and pedagogical training of Disciples of Jesus, for the exercise of ecclesial ministries and pastoral practices in the light of the conclusions of the Fifth Conference of the Church of Latin America and Caribbean (2007). It is stood out the worry of the Church to promote and train disciples and missionaries for the



Estudo dos efeitos da radiacao gama nas propriedades mecanicas e opticas dos policarbonatos. (Gamma radiation effect study in polycarbonate optical and mechanics properties).  

National Technical Information Service (NTIS)

Polycarbonates (PC) are used in different industrial applications due to their excellent dielectric characteristics, impact resistance, and high temperature resistance. In some of these applications, the polycarbonates are exposed to gamma radiation which...

E. S. Araujo



Results of investigation at the Miravalles geothermal field, Costa Rica. Resultados de las investigaciones en el campo geotermico de Miravalles, Costa Rica; Parte 2, Muestreo de fluidos pozo abajo  

SciTech Connect

Samples of the geothermal fluids in the Miravalles, Costa Rica, geothermal system were collected from production wellbores using downhole fluid samplers, from flowing wellheads using miniseparators, and from hot springs that discharge in the area. The reservoir fluid at Miravalles is a neutral-chloride-type water, but fumaroles and acid-sulfate springs are present within the main thermal area, and there are bicarbonate-rich hot springs that are clearly related to the neutral-chloride reservoir fluids. Dissolved gases are primarily a mixture of CO{sub 2} with air, but samples collected in the fumarolic areas also contain H{sub 2}S. Water-stable isotope analyses suggest local meteoric recharge, and the reservoir fluid shows oxygen isotopic shifts of about 2.5% due to high-temperature oxygen exchange between water and rock. Chemical geothermometer temperatures are consistent with the measured downhole temperature of 220{degrees} to 255{degrees}C. This pattern of neutral-chloride reservoir fluids with acid-sulfate springs near the source region and bicarbonate-rich chloride hot springs at the periphery of the system suggests a lateral outflow type of hydrothermal system. In addition to the geochemical evidence, temperature profiles from several of the wells show temperature reversals that are characteristic of lateral outflow plumes. We find no evidence for the underlying, higher temperature (300{degrees}C) system, which has been suggested by other investigators. 24 refs., 14 figs., 6 tabs.

Grigsby, C.O.; Goff, F.; Trujillo, P.E. Jr.; Counce, D.A.; Dennis, B.; Kolar, J.; Corrales, R. (Los Alamos National Lab., NM (USA); Instituto Costarricense de Electricidad, San Jose (Costa Rica))



Fields without Borders: An Anthology of Documentary Writing and Photography by Student Action with Farmworkers' Interns = Campos sin Fronteras: Una Antologia de Obras Escritas y Fotografia por Estudiantes Internos de Accion Estudiantil con Trabajadores Agricolas.  

ERIC Educational Resources Information Center

In this booklet, essays and poems, presented both in English and in Spanish, portray the feelings, conditions, and economic plight of migrant and seasonal farmworkers in North and South Carolina, often in their own words. A preface describes Student Action with Farmworkers summer internships in which college students spend 10 weeks working with…

Manly, Libby, Ed.; Okie, Alejandra, Ed.; Wiggins, Melinda, Ed.


Institutional Entrepreneurship and Collective Identity: the emergence of the HIV\\/AIDS policy field in Brazil Empreendedorismo Institucional e Identidade Coletiva: a emergência do campo da política em HIV\\/AIDS no Brasil  

Microsoft Academic Search

This study seeks to qualify the action of social entrepreneurs looking at the collective identity as an important resource and a defining element of discursive strategies directed to promote changes. We understand institutional entrepreneurship as a collective action that is both means of and a resource to promote changes. We examined the emergence of the Brazilian HIV\\/ AIDS policy and

Patricia Mendonça; Mario Aquino Alves; Luiz Claudio Campos


Seedling growth of the invader Calotropis procera in ironstone rupestrian fi eld and seasonally dry forest soils Crescimento de plântulas da espécie invasora Calotropis procera em solos de campos rupestres ferruginosos e fl oresta seca sazonal  

Microsoft Academic Search

The present study evaluated the growth, biomass allocation and nutrient content in seedlings of the invasive and exotic especies Calotropis procera (Aiton) W.T. Aiton (Apocynaceae), cultured in greenhouse, in soils from two different ecosystems: ironstone rupestrian fi elds (Canga) of Brumadinho, Minas Gerais; and seasonally dry forest (Caatinga), of Serra Talhada, Pernambuco. Seedlings from the Canga treatment were signifi cantly

Silvia H. F. de Oliveira; Daniel Negreiros; G. Wilson Fernandes; Newton P. U. Barbosa


Residência em Psicologia Hospitalar e da Saúde do HU\\/UFJF: consolidando práticas no campo da saúde Residence in Hospital and Health Psychology of the HU\\/UFJF: consolidating pratices in the camp of the health  

Microsoft Academic Search

The Federal University of Juiz de Fora's Residence in Hospital and Heath Psychology (HU\\/UFJF) started in 2004, offering two places per year through a sel ective process. This paper describes the experience obtained throughout the Course existence and the impact on the education of psychologists that will wo rk at hospitals, basic health units and others health institutions.

Cristiane Berriel Veroneze; Tânia Mara; Silva Benfica; Maria Stella Tavares Filgueiras; Suzana Fajardo Leal; Fernanda Deotti Rodrigues



Microsoft Academic Search

In this article we expose the existing problems in the analysis of the reflection levels of the speec h, either of physical education teachers or of sports trainers, in order to improve this aspect and to establish formative programs or to provide feedback to imporove this competency and the performance of the sportsmen. We define the concepts of reflectio n

J. Viciana; M. A. Delgado; Del Villar


Reflectancia Espectral Do Trigo Irrigado (Triticum Aestivum, L) Por Espectrorradiometria de Campo E Aplicacao Do Modelo Sail (Field Spectroradiometry and Sail Model Application to Irrigated Wheat (Triticum Aestivum, L) Canopies Spectral Reflectance).  

National Technical Information Service (NTIS)

Experimental data and results of SAIL model supported a study relating the spectral reflectance of wheat canopies (Triticum aestivum, L.) to their biophysical parameters which included an evaluation of the model potential for investigating such relationsh...

M. Demorissonvaleriano



Fields without Borders: An Anthology of Documentary Writing and Photography by Student Action with Farmworkers' Interns = Campos sin Fronteras: Una Antologia de Obras Escritas y Fotografia por Estudiantes Internos de Accion Estudiantil con Trabajadores Agricolas.  

ERIC Educational Resources Information Center

|In this booklet, essays and poems, presented both in English and in Spanish, portray the feelings, conditions, and economic plight of migrant and seasonal farmworkers in North and South Carolina, often in their own words. A preface describes Student Action with Farmworkers summer internships in which college students spend 10 weeks working with…

Manly, Libby, Ed.; Okie, Alejandra, Ed.; Wiggins, Melinda, Ed.


Induction of metallothioneins in Mullus barbatus as specific biomarker of metal contamination: A field study in the western Mediterranean Inducción de metalotioneínas en Mullus barbatus como biomarcador específico de contaminación metálica: Estudio de campo en el Mediterráneo occidental  

Microsoft Academic Search

Red mullet (Mullus barbatus, Linnaeus, 1758) is one of the fish species used as bioindicator in the Mediterranean Pollution Monitoring Programme (MEDPOL). This paper presents the results of a field study on the induction of hepatic metallothioneins (MT) in red mullet as specific biomarker of metal contamination. Specimens of M. barbatus were collected in six areas with different degrees of

J. Benedicto; J. Campillo



Day-to-day variability in the development of plasma bubbles associated with geomagnetic disturbances  

NASA Astrophysics Data System (ADS)

The development of equatorial ionospheric irregularities into large-scale ionospheric plasma bubbles continues to be an active area for scientific investigations. In this paper we present simultaneous ionospheric sounding observations carried out at Palmas (10.2 S, 48.2 W; located close to the magnetic equator) and Sao Jose dos Campos (23.2 S, 45.9 W; located under the southern crest of equatorial ionospheric anomaly), and OI 630.0 nm emission all-sky imaging observations carried out at the Astrophysics National Laboratory (LNA), Brazopolis (22.5 S, 45.6 W, altitude 1860 m; located close to Sao Jose dos Campos), Brazil, to study the day-to-day variability in the development of ionospheric plasma bubbles during geomagnetic disturbance in September - October, 2002. Also, we present simultaneous complementary vertical total electron content (VTEC) and phase fluctuation data obtained from the GPS (Global Position System) meridional chain operated by Brazilian Network for Continuous Monitoring (RBMC). On the four nights studied in the present investigation (one geomagnetically quiet and three geomagnetically disturbed) it has been observed that the geomagnetic disturbances, during this spring-equinox period, show strong effect on the generation and development of ionospheric plasma bubbles.

Abalde Guede, Jose Ricardo; Abalde Guede, Jose Ricardo; Sahai, Yogeshwar; Fagundes, Paulo Roberto; Becker-Guedes, Fabio; Bittencourt, Jose A.; Pillat, Valdir G.; Lima, Washington L. C.; Nicoli Candido, Claudia Maria


Estudio multicéntrico de infecciones respiratorias agudas bajas en niños hospitalizados menores de dos años  

Microsoft Academic Search

Introduction. Acute lower respiratory infections (ALRI) account for 50% of pediatric hospital admissions and 70% of pediatric outpatient visits in winter. In 1997, an inpatient epidemiological study of ALRI was undertaken. The objectives were to define etiologic viral agents, analyze epidemiological variables, establish the incidence of nosocomial viral infections, and determine risk factors for mortality due to ALRI. Population, material

Ana Lucía Clary; Teresa Pereira; Liliana Sapoznicoff; Norma Schenone



Jasmin i Frederic Mistral, dos models literaris per a Miquel dels Sants Oliver  

Microsoft Academic Search

M. S. Oliver l'any 1903 va publicar al Diario de Barcelona la secció «Literatura extrangera\\u000a», dedicada a l'anàlisi de l'obra d'alguns dels escriptors europeus més notables de l'època.\\u000aLa posició del crític, basada tant en criteris estètics com morals i polítics, s'expressava amb\\u000auna nitidesa absoluta. D'una banda, rebutjava tres tipus de literatura que aleshores tenien un\\u000agran predicament:

Damià Pons i Pons



Exposição ambiental a desreguladores endócrinos: alterações na homeostase dos hormônios esteroidais e tireoideanos  

Microsoft Academic Search

Environmental exposure to endocrine disruptors: alterations in steroidal and thyroid hormones homeostasis Endocrine disruptors, exogenous compounds that alter the endogenous hormone homeostasis, have been systematically discharged in the environment during the last 60 years. These contaminants have been related to the decrease of human sperm number and increased of the incidence of testicular, breast and thyroid cancer. During the same

Natália V. Moraes; Marcella D. Grando; Daniel A. R. Valerio; Danielle P. Oliveira


Um protocolo de perda de peso e a participação dos proprietários no tratamento da obesidade canina  

Microsoft Academic Search

The success of a weight loss program for pets depends on the owners collaboration. Their compliance is fundamental in establishing the correct food management. The objective of this study was to compare the effectiveness of a weight loss program in two groups of dogs, one maintained under experimental conditions and the other with their owners. The same hypocaloric food was

Aulus Cavalieri Carciofi; Karina Nogueira; Venturelli Gonçalves; Ricardo Souza Vasconcellos; Rodrigo Sousa Bazolli; Márcio Antonio Brunetto; Flávio Prada



“Entre Dos Mundos” (Between Two Worlds): Bicultural Skills Training with Latino Immigrant Families  

Microsoft Academic Search

This paper focuses on the acculturation model of second-culture-acquisition for Latino immigrants. Two theoretical frameworks,\\u000a assimilation and alternation theories, are compared within the acculturation model. Empirical research findings suggest that\\u000a assimilation is a risk factor for increases in negative health behaviors and mental health problems. Conversely, biculturalism\\u000a appears to be an emerging protective factor that buffers assimilation stress, enhances socio-cognitive

Martica L. Bacallao; Paul R. Smokowski



Efeito do praziquantel incorporado a lipossomas nos diferentes estágios de desenvolvimento dos ovos de Schistosoma mansoni  

Microsoft Academic Search

RESUMO A esquistossomose mansônica é causada pelo trematódeo digenético intravascular Schistosoma mansoni. Para o tratamento dessa enfermidade o praziquantel (PZQ) e a oxamniquina (OXA) são os fármacos escolhidos. No entanto, esses fármacos apresentam limitações quanto à ação e casos de resistência ou tolerância já foram relatados. Por esse motivo, são necessários os estudos de novas alternativas que visam melhorar os

M. C. Pinto; A. L. R. Souza; S. M. Allegretti


Análise da contaminação dos sistemas hídricos por agrotóxicos numa pequena comunidade rural do Sudeste do Brasil  

Microsoft Academic Search

Recent advances in analytical techniques allow identifying pesticide pollution in water systems. In small rural communities, the negative effects of pesticide pollution can be aggravated by the lack of infrastructure and adverse socioeconom- ic conditions. This study investigated pesticide pollution in potential water supply sources in a tomato growing area in Paty do Alferes, Rio de Janeiro State, Brazil. The

Marcelo Motta Veiga; Dalton Marcondes Silva; Lilian Bechara Elabras Veiga; Mauro Velho de Castro Faria



Granitic Rocks of the Rio dos Bugres Mine: Host Rocks of Fluorite Deposits in Southernmost Brazil  

Microsoft Academic Search

Most fluorite deposits in southernmost Brazil are hosted by Neoproterozoic granitic associations. Fluorite deposits are, nevertheless, much younger than granitic magmatism, and the only probable role of granitic rocks in fluorite genesis was as a source of F. This paper characterizes granitic-dioritic associations in which these fluorite lodes and veins are localized. The granitic suite includes quartz diorites, tonalites, biotite-bearing

J. A. Flores; L. V. S. Nardi; M. L. L. Formoso; A. Meunier; M. L. Pascal; M. Fonteilles; A. C. Ferreira



Notas sobre dos autores mejicoamericanos de California (Notes on Two Mexican-American Authors in California).  

ERIC Educational Resources Information Center

|This paper discusses the work of two Mexican American authors, Jose A. Villerreal and Richard Vazquez, using "Pocho" by Villarreal and "Chicano" by Vazquez as the focus for discussion. Both authors describe the world of Mexican Americans and their social conditions, and both underscore the need for conserving their native culture and reject the…

Moesser, Alba


Avaliação dos Principais Déficits e Proposta de Tratamento da Aquisição Motora Rolar na Paralisia Cerebral  

Microsoft Academic Search

RESUMO Sabendo-se que crianças com paralisia cerebral apresentam atraso para as aquisições motoras, este estudo teve por objetivo verificar os principais déficits e propor um tratamento visando a aquisição motora rolar em pacientes com paralisia cerebral, com idade maior que seis meses que ainda não apresentavam esta função. A partir de uma pesquisa bibliográfica previamente realizada foi elaborado um guia

Elaine da Silva Peixoto; Carla Mazzitelli


Protecting Web Services from DoS Attacks by SOAP Message Validation  

Microsoft Academic Search

Though Web Services become more and more popular, not only inside closed intranets but also for inter-enterprise communications, few eorts have been made so far to secure a Web Service's availability. Existing security standards like e.g. WS-Security only address message integrity and confidentiality, and user authentication and authorization. In this article we present a system for protecting Web Services from

Nils Gruschka; Norbert Luttenberger



Efficient Trapdoor-Based Client Puzzle Against DoS Attacks  

NASA Astrophysics Data System (ADS)

It is well known that authentication, integrity, and confidentiality are the most important principles of network security. However, recent reports about a number of prominent Internet service providers that broke down because of malicious attacks [2, 3, 32,32] urge people to realize that all security principles must be based on service availability. “Availability” in this context refers to a service that can be accessed within a reasonable amount of waiting time after a legitimate client sends a request.

Gao, Yi; Susilo, Willy; Mu, Yi; Seberry, Jennifer



Microsoft Academic Search

The globalized era, full of innovations, brought about an increase in the importance of information and knowledge in the business area, causing a migration from tangible (concrete) to intangible (abstract) assets inside the companies. This paper aims to evaluate how the assets (tangible and intangible) that compose the companies' capital (physical, financial, human and organizational) can be taken into account

Dalton Oswaldo BUCCELLI; Silvio POPADIUK



O papel dos Larídeos como portadores de Salmonella e Listeria spp  

Microsoft Academic Search

Resumo: Tal como noutros países, a população de gaivotas (larídeos) aumentou exponencialmente em Portugal. Para averi- guar as implicações na Saúde Pública deste sobrecrescimento, duzentas e oitenta e cinco amostras de fezes de gaivotas foram analisadas para dois agentes potencialmente patogénicos para o Homem, Salmonella spp. e Listeria sp. Isolou-se Salmonella sp em trinta e sete amostras (13%). Os serotipos

E. L. Duartea; M. M. Guerra; F. M. Bernardo; CIÊNCIAS VETERINÁRIAS


Determinación fotométrica de parámetros fundamentales de dos cúmulos abiertos del cuarto cuadrante Galáctico  

NASA Astrophysics Data System (ADS)

We present preliminary results obtained from a photometric analysis in the Washington system C and T_{1} passbands of two poorly known open clusters (OCs) located in the fourth Galactic quadrant: BH 84 and BH 211. Based on the best fits of theoretical isochrones to the (T_1,C-T_1) colour- magnitude diagrams, we derive the fundamental cluster parameters. The present results are part of a major project which aims to characterize almost a hundred OCs observed and analyzed in a homogeneous way. FULL TEXT IN SPANISH

Marcionni, N.; Parisi, M. C.; Clariá, J. J.; Ahumada, A. V.; Palma, T.; Piatti, A. E.


DOS Kapital: Has antitrust action against Microsoft created value in the computer industry?  

Microsoft Academic Search

Antitrust enforcement that efficiently constrains Microsoft's behavior benefits firms supplying complements to and\\/or substitutes for Microsoft's operating system and applications software. However, from 1991 through 1997, 29 reports of federal antitrust enforcement action against Microsoft were accompanied by declines in the value of an index of 159 computer industry firms (excluding Microsoft). The mean loss to those firms exceeded $1

George Bittlingmayer; Thomas W. Hazlett



Preventing DoS Attacks in Peer-to-Peer Media Streaming Systems  

Microsoft Academic Search

This paper presents a framework for preventing both selfi shness and denial-of-service attacks in peer-to-peer medi a streaming systems. Our framework, called Oversight, ach ieves prevention of these undesirable activities by run ning a separate peer-to-peer download rate enforcement protocol along with the underlying peer-to-peer media streaming protocol. This separate Oversight protocol enforces dow nload rate limitations on each participating

William Conner; Klara Nahrstedt; Indranil Gupta



Counter-orbiting tidal debris as the origin of the MW DoS  

NASA Astrophysics Data System (ADS)

The Milky Way satellite galaxies show a phase-space distribution that is not expected from the standard scenario of galaxy formation. This is a strong hint at them being of tidal origin, which would naturally explain their spacial distribution in a disc of satellites. It is shown that also their orbital directions can be reproduced with the debris of galaxy collisions. Both co- and counter-orbiting satellites are formed naturally in merger and fly-by interactions.

Pawlowski, M. S.




Microsoft Academic Search

The objective of this paper was to measure the econ omic impacts of three IAC peanuts cultivars. Incremental ratio on the production valu e and economic surplus based-methods were utilized in the impact evaluation. The results showed internal rate of return between 38.0 and 39.7 to the peanut genetic improvement inv estments in the State of São Paulo, Brazil, for



One? "Dos" Drei. A Study of Code Switching in Child Trilingualism  

ERIC Educational Resources Information Center

|This longitudinal study focuses on the language production of two siblings, aged 6 and 9 at the beginning of the data collection period, who have been brought up in a bilingual family in New York. The parents of the two girls are native speakers of German and Spanish, respectively, and English for them is the language of education and the larger…

Davidiak, Elena




Microsoft Academic Search

Microscopic identification of the hairs of Brazilian Alouatta Lacépède, 1799 species (Primates, Atelidae, Alouattinae). The hair structure of five species of Brazilian howler monkeys is described. The hairs were cleared to reveal the medulla cells and impressions were made of the cuticle. A new cuticle scale pattern and four new medulla cell patterns are described. The cuticle scales in Alouatta




Microsoft Academic Search

An analysis of the structure of two short stories by Carmen Martín Gaite: El Castillo de las Tres Murallas and El Pastel del Diablo (The Devil's Cake). These short stories follow the traditional structure of the quest and the journey, but they also propose an interpretatio n from within that reflects and completes the tale.




Microsoft Academic Search

The production of high quality coffee depends on the way the product is handled during post harvest procedures, mainly in the drying phase. The objective of this work was the evaluation of coffee quality from coffee fruits submitted to sun drying, after different periods of time in contact with the crop soil. It was studied the effect of on soil




Microsoft Academic Search

RESUMO - O município de Alta Floresta- MT situado na Amazônia norte Mato- grossense foi colonizado na década de 70. Neste local, a colonizadora INDECO, encontrou as condições ideais para instalar um projeto que deveria assentar pequenos agricultores da região sul (colonos) que estavam enfrentando problemas nas suas terras de origem. Esse projeto foi construído sobre o tripé Educação \\/



Costos secundarios por infecciones nosocomiales en dos unidades pediátricas de cuidados intensivos  

Microsoft Academic Search

Objective. We estimated associated costs to nosocomial infections in two pediatric intensive care units in Mexico City. Material and methods. A transversal study in the neonatal (NICU) and pediatric (PICU) intensive care units, was done. We reviewed use and cost of diagnostic procedu- res, medications, and excess of hospital stay. Results. There were 102 infections, 46 in the NICU and

Susana Navarrete-Navarro; Gerardo Armengol-Sánchez



Polarización e hibridación. Cuestionando dos fenómenos en las ciudades de nuestro tiempo  

Microsoft Academic Search

The main cities of our time - the time of globalization - confront socioeconomic and sociocultural phenomena manifested in physical-spatial segregations, producing dual urban structures that accentuate the social and economic polarization among their inhabitants. This unbalanced situation originates energetic migratory movements, of low-income individuals and social groups toward foreign urban contexts, in search of a better situation. The celerity

Huáscar Bolívar Vallejo


Network Flow Transshipment Model for Use on MS-DOS Micro Computers: Users Manual.  

National Technical Information Service (NTIS)

The Fortran-based microcomputer model for analysis of transportation transshipment problems adapted a Fortran IV program for mainframe computer developed by Dr. Ming H. Chow at Kansas State University in 1984. The program is a network flow model utilizing...

R. Phillips



Perfil e Padrões de Prática dos Fisioterapeutas no Futebol em Portugal - um Estudo Observacional  

Microsoft Academic Search

Introduction \\/ Relevance: Sports Physiotherapy is the area of physiotherapy involved in prevention, treatment and rehabilitation of disorders and \\/ or injuries resulting from sport and \\/ or physical activity, that involves models and standards of good practices that ensure the quality of the intervention. Objectives: The purpose of this study was to identify and characterize the profile and practice

Duarte Pereira


Análise de Tráfego Peer-to-Peer baseada na Carga Útil dos Pacotes  

Microsoft Academic Search

It is increasingly necessary to identify and successfully characterize peer-to-peer (P2P) traffic as it predominates in the Internet. Yet there is however no proven methodology to achieve this as it often hides itself behind well-known services and does not maintain fixed port numbers. This work analyses P2P traffic by examining packet load in the Brazilian academic network (RNP) and a

Guthemberg Silvestre; Carlos Kamienski; Stênio Fernandes; Dênio Mariz; Djamel Sadok


Dos and Don'ts of Giving OTC Cough and Cold Medicines to Your Child  


... things you can do to help your child sleep better. Funding and support for this material have been provided by the Consumer Healthcare Products Association. Written by editorial ...



Microsoft Academic Search

Recent subjective studies show that the performance of attention deficit hyperactivity disorder (ADHD) patients is affected by colors. This paper describes a quantitative performance evaluation of this behavior using computer games. Two versions were developed. Depending on the version, hints were represented in green and red or blue and yellow. The version were used with 32 volunteers, 16 with ADHD

A. P. Silva; A. F. Frère; L. F. Bissaco


Investigação da infância e crianças como investigadoras: metodologias participativas dos mundos sociais das crianças  

Microsoft Academic Search

In the second modernity the childhood participation is assumed as a fundamental principle to a large extent of the scientific speeches that are produced concerning childhood. The Sociology of Childhood, when considering the children as social actors and as citizens of rights, assumes the question of children's participation as central in the definition of a social statute of childhood and

Natália Fernandes Soares; Manuel Jacinto Sarmento; Catarina Tomás



Microsoft Academic Search

O Brasil é importante exportador de madeira do mundo, tendo como principais mercados de destino os Estados Unidos e a União Européia. Desse modo, nesse estudo pretende-se estimar as equações de oferta e demanda por exportação madeireira do Brasil para os Estados Unidos e a União Européia; identificar as fontes de comércio madeireiro do Brasil nos seus principais mercados de

Rachel Silva Almeida; Rosemeiry Melo Carvalho; Ruben Dario Mayorga Mera




Microsoft Academic Search

O objetivo deste estudo foi prospectar cenários para a unidade em estudo; e desenvolver um diagnóstico estratégico do processo de produção de óleos vegetais da organização em estudo. Quanto à metodologia, trata-se de uma pesquisa-ação, cujos dados foram obtidos por fontes primárias e secundárias. Para retratar a análise do ambiente interno e possibilitar acompanhamento das mudanças, pela proposta de Mintzberg,

Christian Drees; Eliane Moreira De Sa Souza; Odilon Jose De Oliveira Neto; Reginaldo Santana Figueiredo



On the Effectiveness of Secure Overlay Forwarding Systems under Intelligent Distributed DoS Attacks  

Microsoft Academic Search

Abstract In the framework of a set of clients communicating with a critical server over the Internet, a recent approach to protect communication,from Distributed Denial of Service (DDoS) attacks involves the usage of overlay systems. SOS, MAYDAY and I3 are such systems. The overlay system serves as an intermediate forwarding system between the clients and the server, where the systems

Xun Wang; Sriram Chellappan; Phillip Boyer; Dong Xuan



El laberinto espacio-temporal en dos relatos de El llano en llamas de Juan Rulfo  

Microsoft Academic Search

The pattern of Latin American Boom criticism developed by Donald L. Shaw established that Juan Rulfo's protagonists are universal, not regional. In this interpretative mode, espoused by Graciela B. Coulson and others, Rulfo's characters are viewed as powerless to alter their own destinies. Humans are dominated and doomed by the hostile natural world that surrounds them. However, through a detailed

Juan Martínez Millán




Microsoft Academic Search

In the last decades, Brazilian cities have had a faster urbanization process, which represents one of the main challenges for the public managers. Probably, more than a half of the global population lives in urban centers, what increases the necessity of solid waste management in these areas. The problematical that involves the waste, according to Ferreira (2000), exceeds the technique



Deposition dos and don'ts: strategies for the expert witness.  


The deposition is an important stage in the legal process, which poses special challenges for the deponent. This article reviews those challenges from the standpoint of the expert witness, addressing the stages of the deposition, the deposing attorney's strategies, the role and goals of the expert witness serving as the deponent, the approach to answering the attorney's questions, strategies for clarifying or reframing those questions, and the approaches to reviewing the deposition after the transcript has been printed. The article emphasizes tricks and traps used by the deposing attorney and how to avoid them. PMID:23107572

Gutheil, Thomas G



Ética Hoje: Características e Relação a partir dos Pensamentos Filosóficos de Apel e Ricoeur  

Microsoft Academic Search

In view of the crisis of metaphysics, decentralization of the subject and, especially, the crisis of ethical values in our time, we will establish the key features and a possible relationship between ethics and ethical discourse itself in the thoughts of the Apel and Ricoeur from the \\

Aluisio Antônio; Bezerra de Carvalho


Detecting Ringing-Based DoS Attacks on VoIP Proxy Servers  

Microsoft Academic Search

NGN (Next Generation Network) is often called all-IP network as the general idea behind NGN is that one network transports\\u000a all information and services. When NGN is deployed in a large scale, VoIP will eventually replace PSTN, the traditional model\\u000a of voice telephony. While VoIP promises both low cost and a variety of advanced services, it may entail security vulnerabilities.

Dae Hyun Yum; Sun Young Kim; Hokun Moon; Mi-yeon Kim; Jae-hoon Roh; Pil Joong Lee



Utilidad de dos marcadores biológicos de infección bacteriana en niños menores de 2 años  

Microsoft Academic Search

IntroductionProcalcitonin (PCT) increases in bacterial infections. C reactive protein (CRP) rises in inflammatory processes regardless of origin. Due to its shorter half-life and a more rapid increase, PCT offers potential advantages over CRP in the early diagnosis of bacterial infection.

José Luis Pascual Gómez; Matilde Palanca Giménez; Francisco Bermudo Guitarte; Miguel Valle Jiménez; Félix Gascón Luna




Microsoft Academic Search

A natural zeolite Cuban was used enriched for the cultivation of the marine microalgae Tetraselmis suecica and Chaetoceros ceratosporum, species used in the feeding of shrimp larvae in cultivation. Different zeolite concentrations were proven (5, 10 and 25 mg\\/L) adding it to the culture media Guillard \\

Sylvia Leal; Elvira Alfonso; Rafael Curbelo


Influencias africanas na lingua brasileira dos terreiros (African Influences in Brazilian Language of the Voodoo Rites).  

ERIC Educational Resources Information Center

Discusses how determination of lexical items with Sub-Saharan origin in songs of voodoo rites of candomble and umbanda in southern and northeastern Brazil is complicated by factors like existence of phonological correspondence without accompanying semantic correspondence, difficulty of determining meaning of word in a given text, and high…

Megenney, William W.



Comparação dos resultados do OPD-Scan e performance visual das lentes intraoculares monofocal e multifocal  

Microsoft Academic Search

Purpose: To compare the visual outcome, contrast sensitivity and wave- front analysis of patients that underwent cataract surgery and implantation of AcrySof SN60D3 multifocal intraocular lens with those who received the AcrySof SN60AT monofocal IOL. Methods: This was a prospective clinical trial of forty eyes that received the multifocal IOL and thirty-two eyes that received the monofocal IOL after phacoemulsification.

Wilson Takashi Hida; Newton Kara-José Junior; Emerson Alves; Marcel Tadeu; Lívio Neiva Cordeiro; Celso Takashi Nakano



Microsoft Academic Search

Resumo A busca por metodologias e formas de gestão capazes de garantir uma maior competitividade mundial exige que as organizações criem e implementem alternativas cada vez mais inovadoras. A terceirização como uma prática de gestão, vem suprir uma necessidade de especialização nas organizações. Criada inicialmente para atender as atividades denominadas atividade-meio. A terceirização evoluiu e já está sendo aplicada a

Mário César; Barreto Moraes; Sandra Regina; Bernardes Tratt; Graziela Dias Alperstedt; Sandro dos Santos



Aspectos linguisticos dos emprestimos em portugues (Linguistic Aspects of Adaptation into Portuguese).  

ERIC Educational Resources Information Center

Examines the process through which modern Portuguese borrows from other languages, mainly French and English. Portuguese adapts these derivatives to conform to its own rules of phonology, morphology, and semantics. (four references) (Author/CK)

Harmon, Ronald M.



Polímeros biodegradáveis - uma solução parcial para diminuir a quantidade dos resíduos plásticos  

Microsoft Academic Search

BIODEGRADABLE POLYMERS - A PARTIAL WAY FOR DECREASING THE AMOUNT OF PLASTIC WASTE. The large use of plastics has generated a waste deposit problem. Today plastic wastes represent 20% in volume of the total waste in the municipal landfills. To solve the disposal problem of plastics methods have been employed such as incineration, recycling, landfill disposal, biodegradation and the use

Sandra Mara Martins Franchetti; José Carlos Marconato



Maturação biológica, prática desportiva e somatótipo de crianças e jovens madeirenses dos 10 aos 16 anos  

Microsoft Academic Search

Biological maturation, sports practice and somatotype of children and youth aged 10 to 16 years of Madeira Islands The aim of this study is to quantify the possible changes in somatotype associated with physical activity and biological maturation. The sample comprised 309 subjects (157 boys and 152 girls) aged 10 to 16 years that participated in Madeira Growth Study. Physical

DL Freitas; CA Silva; JA Maia; GP Beunen; AL Rodrigues; MA Thomis


Dos nuevas especies del género Squatina (Chondrichthyes: Squatinidae) del Golfo de México  

Microsoft Academic Search

Two new species of the genus Squatina (Chondrichthyes: Squatinidae) from the Gulf of Mexico. Two undescribed species of the genus Squatina, caught by bottom-trawl during the OGMEX VIII, IX and PROBEMEX II oceanographic cruises were compared with S. dumeril Lesueur, 1818, the only well known spe- cies from the northern Gulf of Mexico. The collections were made off Tamaulipas, Veracruz

José Luis Castro-Aguirre; Héctor Espinosa Pérez; Leticia Huidobro Campos




Microsoft Academic Search

Temporalities are to be organized in the relation with several factors considered interchangeable. Among the most important factors we have: gender, social class, work, education, urbanization and industrialization. The research analyses the time use of a group of children from medium class. It also compares these data with the data acquired in the previous research with a group of children

Marie Jane; Soares Carvalho



Microsoft Academic Search

The Second World War (1939-1945) was the more intense armed conflict of the XX century. In addition to dozen of countries which has been directly involved, a number of another ones were forced to participate in both sides. Divided in Allied and Axis, the countries of all the world fought against each other, resulting the death of million of persons

Anysio Henriques Neto



Problema dos tres corpos em mecanica quantica. (Three-body problem in quantum mechanics).  

National Technical Information Service (NTIS)

Different methods used in the analysis of the scattering of an elementary particle by a system of two bound particles are compared. All particles are considered spinless and distinguishable from each other. Two approaches are used in the treatment of the ...

A. C. B. Antunes




Microsoft Academic Search

Anatomical description ofthe Scinaxfuscovarius fat bodies and testes (Anura, HyUdae). This report describes general anatomical and histological characteristics of the Scinax (uscovarius fat bodies and testes. From 15 adult males collected at the Botucatu city area (São Paulo, Brazil), ten animais were macroscopically observed and five were submitted to histological analysi. The testes are ovoid organs that are located ventrally

Carlos Alberto Vicentini


Energy policy: DOs and DON'Ts for the 1980s  

Microsoft Academic Search

The short term often seems more of a threat than the long term because possible oil-supply disruptions appear worse than the long-term economic adjustments. US energy use became 10% more efficient during the 1970s, and the number of Btus consumed per dollar of gross national product is declining as conservation becomes respectable. Better energy use requires that people have technical




Ultrafast display buildup with standard VGA on MS-DOS computers  

Microsoft Academic Search

Tachistoscopic examinations, determinations of reaction times after visual stimuli, and latency measurements of visual evoked\\u000a potentials require well-defined and often very fast display buildup on the monitor. Display buildup takes at least 14 msec\\u000a when a VGA board is used in standard video modes. This time can be reduced to 4 msec or less by reprogramming some registers\\u000a of the

Ingo Spitczok von Brisinski



Informática na Fisioterapia: Sistema Multimídia de Apoio ao Aprendizado dos Testes de Força Muscular  

Microsoft Academic Search

This work describes a tutorial system development for the support to muscular strength tests learning. These tests are essential for a physical therapy diagnosis. This subject is crucial for the physical therapist. Its importance and complexity motivated the development of TFM, a multimedia learning support system. It integrates hypertext, movies, animated pictures and sound as recommended by construtivism paradigm. We

Luciana V. Castilho; Heitor S. Lopes; Wagner R. Weinert


The Evidence Collection of DoS Attack in WLAN by Using WLAN Forensic Profiling System  

Microsoft Academic Search

Nowadays the more wireless mobile communication technology has been improved, the more wireless users has been increased. On the other hand, cyber crime in WLAN has been gradually increasing. To solve the cyber crime in wireless environment, WLAN forensic is not only counterproposal but also resolution of the cyber crime in WLAN. In this paper, we propose the evidence collection

Donghyuk Yim; Jae-Yoon Lim; Seunghwan Yun; Sun-Hee Lim; Okyeon Yi; Jongin Lim



Segurança Alimentar e Agricultura Familiar: Análise dos Programas Municipais de Araraquara-SP  

Microsoft Academic Search

O presente trabalho analisa as políticas públicas de segurança alimentar como instrumentos de desenvolvimento nos espaços locais e regionais voltados ao objetivo de elevar as condições de renda e de emprego na agricultura familiar. Mostra que mecanismos institucionais desenvolvidos a partir de políticas públicas participativas podem promover o desenvolvimento rural local e regional com possibilidades de inclusão social. Tal constatação

Luiz Manoel de Moraes Camargo Almeida; Thauana Paiva Gomes; Sonia Maria Bergamasco; Luiz Fernando Paulillo




Microsoft Academic Search

2 ). Losses of N and P were significantly higher in March than in September. In the bare soil, nutrient losses were higher in the Haplustoll than in the Ustipsamment, while with vegetation cover, erosion was of lesser importance, and similar for both soil types. Organic carbon was the soil constituent that suffered the highest losses due to water erosion.




Microsoft Academic Search

-1 (60N) were studied in a pot experiment in a glasshouse using urea labelled with 15 N applied at sowing to two soils: Bordenave (B, Typic Haplustoll), and Tres Arroyos (TA, Petrocalcic Argiudoll). Pots were destructively sampled at the fifth leaf, ear emergence, milky kernel and physiological maturity stages. Distribution of 15 N and 14 N in shoots and roots,




Microsoft Academic Search

Influence of local cooling and warming on the flexibility of the hamstring muscles Objective: The aim of this study was to analyze the acute and chronic effects of cooling and warming on hamstring muscle flexibility. Method: Forty volunteers were randomly included in one of four groups (n=10): 1) control group; 2) stretching group, using a sustain-and-relax technique on the hamstring

BRASILEIRO JS; FARIA AF E QUEIROZ; Jamilson Simões Brasileiro


Abelhas (Hymenoptera, Apoidea) Nidificando em Ninhos-Armadilha na Estação Ecológica dos Caetetus, Gália, SP  

Microsoft Academic Search

Trap-nesting bees (Hymenoptera, Apoidea) in the Caetetus Ecological Station, Gália, SP. This paper reports data obtained concerning the occupation of trap-nests by solitary bees in a study carried out in the Caetetus Ecological Station (22º20' e 22º30' S and 49º40' e 49º45' W), one of the larg- est and most important remnants of semideciduous forest in São Paulo state ,

Carlos Alberto Garófalo


Some Dos and Don'ts in Child and Adult Grammars  

Microsoft Academic Search

0. Abstract This talk focuses on the syntax of dummy 'do'. An analysis of standard English is proposed that will be used to also account for historical and dialectal variation, the related phenomenon of periphrastic 'tun' in colloquial German and neighboring Germanic dialects, and facts about English acquisition. The acquisition facts include children's early non-adult use of \\

Carson T. Schütze


Levantamento de conteúdos para fundamentação do ensino dos efeitos psico- comportamentais da massagem para bebês  

Microsoft Academic Search

Among the many effects produced by the massage, a noteworthy one is that it can function as a behavior modifier, such as working as an integration factor between parents and children. Aiming at selecting psychological and behavioral contents that are the foundation for the teaching of massage for babies in a population of lay mothers, a literature review comprehending at

Cláudia Marchetti; Vieira da Cruz; Fátima Aparecida Caromano


O marketing dos alimentos funcionais: reflexões sobre o mercado e os consumidores  

Microsoft Academic Search

With the sedentary lifestyle of the urban centres, the stress and the incorrect food habits, consumers start giving a special at- tention and value to health and well-being. Along with this tendency, appeared in the market new generations of products wish represent the concept of a healthy-life. Func- tional foods are among this group and show a considerable growth in

Hélder da Silva Oliveira; Paulo Ribeiro Cardoso


Respostas agudas pós-exercício dos níveis de lactato sanguíneo e creatinofosfoquinase de atletas adolescentes  

Microsoft Academic Search

RESUMO O crescente interesse de crianças e adolescentes por esportes competitivos induz a uma maior preocupação em prescrever trei- namentos adequados a essa população específica. O conhecimen- to do impacto da intensidade de treinamento físico competitivo sobre a saúde de adolescentes são ainda incipientes na literatura científica. Este estudo objetivou investigar as respostas agudas do lactato sanguíneo (Lac) e da

Carla Cristiane Silva; Tamara Beres Lederer Goldberg; Renata Campos Capela; Cilmery Suemi Kurokawa; Altamir dos Santos Teixeira; José Carlos Dalmas; Edílson Serpeloni Cyrino



Dos Puertorriquenos Visitan Puerto Rico (Two Puerto Ricans Visit Puerto Rico).  

ERIC Educational Resources Information Center

|These materials for Spanish instruction are based on the meeting and friendship of two Puerto Ricans arriving in Puerto Rico for visits to their hometowns, their discussions of Puerto Rican life, and a sightseeing tour of San Juan. Introductory passages to the visitors' dialogues are in English, and dialogues are in Spanish, with photographs,…

Tuttle, Harry Grover


Ensuring the Relocatability of Programs in the Operational System DOS Yes.  

National Technical Information Service (NTIS)

Specific modifications in the Disk Operational System Unified Series to insure the relocatability of programs stored permanently in the core image library is described. A self-relocating method for loading programs into the working memory with re-editing ...

S. K. Novoseltsev I. G. Orlov A. S. Chesalin



Comunicação e participação pais-filhos: correlação com habilidades sociais e problemas de comportamento dos filhos  

Microsoft Academic Search

The objectives of this study were to compare indicators of the involvement between parents with their children and to compare parental involvement with the children's repertoire of social skills as well as to behavior problems. 110 children from the 4th grade of Elementary School participated, using the Quality of Family Interaction from the children's viewpoint questionnaire (QIFVF), to assess the

Fabiana Cia; Renata Christian de Oliveira Pamplin; Zilda Aparecida Pereira Del Prette



A DoS Resilient Flow-level Intrusion Detection Approach for High-speed Networks  

Microsoft Academic Search

Global-scale attacks like viruses and worms are increas- ing in frequency, severity and sophistication, making it critical to detect outbursts at routers\\/gateways instead of end hosts. In this paper we leverage data streaming tech- niques such as the reversible sketch to obtain HiFIND, a High-speed Flow-level Intrusion Detection system. In contrast to existing intrusion detection systems, HiFIND 1) is scalable

Yan Gao; Zhichun Li; Yan Chen




Microsoft Academic Search

In this study, the karyotype and the meiotic index (MI) of cacaui ( Theobroma speciosum (L.) Willd.) were evaluated. For cytological analyses, T. speciosum seeds were allowed to germinate in a controlled environment. After germination, root meristems were collected and subjected to blocking procedures in order to accumulate cells in metaphase. Then, they were fixed in fresh solution of methanol:





Microsoft Academic Search

This work was designed to determine the influence of tributes on the optimum economical age of harvesting Eucalyptus spp. stands, to determine the number of cuttings between the reform of Eucalyptus spp. stands, to determine and analyze the contribution of tributes to the wood production costs. Many tributes are due on the forest sector. In this study, the tributes considered

José Luiz Pereira de Rezende; Antônio Donizette de Oliveira



"Mi Hija Vale Dos Personas": Latino Immigrant Parents' Perspectives about Their Children's Bilingualism  

ERIC Educational Resources Information Center

This paper presents the voices of 16 Latino immigrant parents whose children were upper elementary students in a bilingual education class in the southwestern United States. In interviews that focused on their children's language learning and usage, the parents spoke of a commitment to a better life for their children. All believed that English…

Worthy, Jo; Rodriguez-Galindo, Alejandra



Home before You Know It = De regres en casa en un dos por tres.  

ERIC Educational Resources Information Center

|The arrival of a newborn requires a great deal of adjustment. Intended for new and expectant parents, this booklet and companion video provide practical advice and hands-on demonstrations of the essentials of mother and baby care, from birth to the first visit to the pediatrician. The first part of the booklet, which comes in both English- and…

Vida Health Communications, Inc., Cambridge, MA.


Intermitência alfvênica gerada por caos na atmosfera solar e no vento solar  

NASA Astrophysics Data System (ADS)

Dados medidos no vento solar rápido proveniente dos buracos coronais revelam que os plasmas no meio interplanetário são dominados por flutuações Alfvênicas, caracterizadas por uma alta correlação entre as variações do campo magnético e da velocidade do plasma. As flutuações exibem muitas características esperadas em turbulência magneto-hidrodinâmica totalmente desenvolvida, tais como intermitência e espectros contínuos. Contudo, os mecanismos responsáveis pela evolução de turbulência Alfvênica intermitente não são completamente compreendidos. Neste trabalho a teoria de caos é usada para explicar como sistemas Alfvênicos, modelados pela equação Schrödinger não-linear derivativa e pela equação Kuramoto-Sivashinsky, podem se tornar fortemente caóticos à medida em que parâmetros do plasma são variados. Pequenas perturbações no parâmetro de dissipação podem fazer com que o sistema mude bruscamente de um regime periódico, ou fracamente caótico, para um regime fortemente caótico. As séries temporais das flutuações do campo magnético nos regimes fortemente caóticos exibem comportamento intermitente, em que fases laminares ou fracamente caóticas são interrompidas por fortes estouros caóticos. É mostrado que o regime fortemente caótico é atingido quando as soluções periódicas ou fracamente caóticas globalmente estáveis interagem com soluções do sistema que são fortemente caóticas, mas globalmente instáveis. Estas soluções globalmente instáveis são conjuntos caóticos não-atrativos conhecidos como selas caóticas, e são responsáveis pelos fortes estouros nos regimes intermitentes. Selas caóticas têm sido detectadas experimentalmente em uma grande variedade de sistemas, sendo provável que elas desempenhem um papel importante na turbulência intermitente observada em plasmas espaciais.

Rempel, E. L.; Chian, A. C.-L.; Macau, E. E. N.; Rosa, R. R.



Fisica a escala de Planck usando o principio de incerteza generalizado: efeitos nas flutuações primordiais e buracos negros  

NASA Astrophysics Data System (ADS)

Em escalas proximas à escala de Planck todas as teorias perturbativas de cordas produzem essenciamente a mesma relação de conmutação entre as coordenadas e impulsos (a chamada "álgebra deformada"), permitindo assim estudar a física resultante independentemente dos detalhes da teoria de cordas que seja considerada correta. Este resultado completamente geral, que inclui as interações gravitacionais junto com o resto dos campos pode ser considerada uma versão generalizada (GUP) do Princípio de Incerteza de Heisenberg. Aplicamos neste trabalho essas relações de conmutação para dois sistemas físicos bem definidos: buracos negros de massas próximas à massa de Planck, e flutuações quânticas em pequenas escalas antes do universo sofrer inflação. Obtemos dois resultados concretos dos efeitos do GUP : o primeiro é que o GUP impede a evaporação completa de buracos negros microscópicos na extensão do formalismo semiclássico, deixando assim remanescentes de pequena massa que já foram postulados como candidatos a matéria escura. O segundo resultado é o 'smoothing' das flutuações primordiais em pequenas escalas que levariam à produção de buracos negros primordiais após a inflação, impedindo assim a produção abundante destes últimos e predizendo abundancias atuais bem menores do que os limites disponíveis. Concluimos que, analogamente a utilização do Princípio de Incerteza de Heisenberg para estudar e determinar propriedades fundamentais das interações sem gravitação, o GUP e uma ferramenta poderosa para estudar uma ampla variedade de sistemas trans-Planckianos e predizer seu comportamento dispensando cálculos mais detalhados proprios da teoria quântica da gravitação.

Horvath, J. E.; Custódio, P. S.



Evidencia de alta concentración de masa en la región nuclear de una galaxia liner  

NASA Astrophysics Data System (ADS)

Usando técnicas de espectroscopía bidimensional en el telescopio de 1.54 m de Bosque Alegre, se obtuvo el campo de velocidades de la región nuclear de NGC 1672, galaxia LINER con un anillo circumnuclear de regiones HII. La curva de rotación media para los 2 kpc centrales sugiere la presencia de una gran concentración de masa (?c~ 1011Msolar /kpc3). Este resultado es respaldado por la presencia de ciertos caracteres morfológicos detectados en imágenes obtenidas con el mencionado telescopio. Según recientes simulaciones hidrodinámicas de galaxias barreadas, estos caracteres sugieren la presencia de altas densidades en las regiones nucleares. El análisis espectrofotométrico indicaría, además, la presencia de dos componentes en la emisión nuclear, con una diferencia de velocidades de ~ 200 km/s. La velocidad circular del gas ionizado a 125 pc del centro señalaría la existencia de una masa interior de ~ 7× 108Msolar .

Díaz, R.; Carranza, G.; Dottori, H.; Goldes, G.


F3-LAYER Seasonal Variations Near the Southern Crest of the Equatorial Ionospheric Anomaly as a Function of Solar Cycle  

NASA Astrophysics Data System (ADS)

The occurrence of an additional F3-layer has been reported at Brazilian, Indian and Asian sectors by several investigators. In this paper, we report F3-layer seasonal variations carried out at São José dos Campos (23.2 S, 45.0 W; dip latitude 17.6 S), near the southern crest of the equatorial ionospheric anomaly (EIA), Brazil, as a function of solar cycle. The period from September 2000 to August 2001 is used as representative of high solar activity (HSA) and the period from January 2006 to December 2006 as representative of low solar activity (LSA). This investigation shows that the frequency of occurrence of the F3-layer during HSA is 11 times more than during LSA.

Fagundes, P. R.; Klausner, V.; Bittencourt, J. A.; Sahai, Y.; Abalde, J. R.



Study of atmospheric discharges caracteristics using with a standard video camera  

NASA Astrophysics Data System (ADS)

In this study is showed some preliminary statistics on lightning characteristics such as: flash multiplicity, number of ground contact points, formation of new and altered channels and presence of continuous current in the strokes that form the flash. The analysis is based on the images of a standard video camera (30 frames.s-1). The results obtained for some flashes will be compared to the images of a high-speed CCD camera (1000 frames.s-1). The camera observing site is located in São José dos Campos (23°S,46° W) at an altitude of 630m. This observational site has nearly 360° field of view at a height of 25m. It is possible to visualize distant thunderstorms occurring within a radius of 25km from the site. The room, situated over a metal structure, has water and power supplies, a telephone line and a small crane on the roof. KEY WORDS: Video images, Lightning, Multiplicity, Stroke.

Ferraz, E. C.; Saba, M. M. F.


Electron microscopic and antigenic studies of uncharacterized viruses. II. Evidence suggesting the placement of viruses in the family Bunyaviridae.  


This is the second of three papers describing the use of electron microscopy and antigenic analyses intended to characterize and place in taxa more than 60 previously unclassified viruses. The first paper of the series describes the viruses we classified as provisional members of the families Arenaviridae, Paramyxoviridae, or Poxviridae; another paper, published separately, discusses the Rhabdoviridae. In this paper we report that electron microscopy provided sufficient evidence to place 17 of these viruses (Belem, Erve, Estero Real, Mojui dos Campos, Nyando, Odrenisrou, Okola, Pacora, Para, Santarem, Tanga, Telok Forest, Termeil, Thiafora, Thottapalayam, Wanowrie, and Yacaaba) in the family Bunyaviridae and to support the observations of others that Yogue and Kasokero viruses are members of this virus family. Subsequent antigenic studies allowed us to place some of these viruses in recognized antigenic groups and to establish new antigenic groups for others. PMID:2690776

Zeller, H G; Karabatsos, N; Calisher, C H; Digoutte, J P; Cropp, C B; Murphy, F A; Shope, R E



Nocturnal and seasonal variation in the mesospheric sodium layer  

NASA Astrophysics Data System (ADS)

The vertical profile of mesospheric sodium was measured by laser radar at Sao Jose dos Campos (23 deg S, 46 deg W) on 345 nights since 1972. Very large day to day variations are observed, both in the total abundance of sodium and in its vertical distribution, and only by averaging over a large number of measurements are consistent nocturnal and seasonal trends observed. An annual variation by a factor of two is observed in the total sodium abundance, with maximum in local winter, but no consistent annual variation is observed in the height or shape of the layer, nor in its nocturnal variation. The average nocturnal variation shows a small decrease in abundance before midnight, followed by a post-midnight increase. The height of maximum sodium concentration decreases throughout the night in all seasons, and the scale height of the topside of the layer increases.

Simonich, D. M.; Clemesha, B. R.; Kirchhoff, V. W. J. H.



The mesospheric sodium layer at 23 deg S - Nocturnal and seasonal variations  

NASA Astrophysics Data System (ADS)

The vertical profile of mesospheric sodium has been measured by laser radar at Sao Jose dos Campos (23 deg S, 46 deg W) on 344 nights since 1972. Large day-to-day variations are observed, but averaging over a large number of measurements consistently shows an annual variation by a factor of 2 in the sodium abundance, with maximum in local winter. The average nocturnal variation is consistent with photochemical control of the bottomside of the layer and diffusive control of the topside. Variations observed on individual nights appear to be mainly dynamic in origin. Vertical structure with a characteristic wavelength of the order of 10 km is frequently seen to propagate downward through the layer at rates between 1 and 4 km/h. Comparison of these results with twilight and daytime absorption abundances suggests a latitudinal asymmetry in the seasonal variation of abundance.

Simonich, D. M.; Clemesha, B. R.; Kirchhoff, V. W. J. H.



Mesospheric ozone from measurements of ground based sodium sounders  

NASA Astrophysics Data System (ADS)

Mesospheric sodium was monitored from the ground by simultaneous observations of the neutral sodium densities and the sodium glow intensity. (The first parameter was measured by laser radar and the second by a tilting filter photometer.) Based on the Na photochemistry the ratio intensity/abundance is proportional to the ozone density close to the height of peak sodium emission (89 km). Using a two year set of sodium data, taken at Sao Jose dos Campos (23 deg S, 46 deg W) a number of features of the ozone density variations were determined. The average nocturnal behavior is one of constant ozone density, and a strong peak in ozone concentration is observed in autumn. The results also imply that the reaction rate for Na + O3 yields NaO + O2 must be larger than the usually quoted value of 6.5 x 10 to the minus 12th power cu cm/sec.

Kirchhoff, V. W. J. H.; Clemesha, B. R.; Simonich, D. M.



Seasonal variation of ozone in the mesosphere  

NASA Astrophysics Data System (ADS)

The mesospheric ozone density at a height of 88 km has been deduced from simultaneous ground-based observations of neutral sodium density and sodium nightglow intensity, using a photochemical equilibrium model. The data have been obtained at Sao Jose dos Campos (23 deg S, 46 deg W). Sodium densities are measured as a function of height between 76 and 106 km by laser radar, and the nightglow intensities by a tilting filter photometer. The ozone density shows a strong seasonal variation with well defined maxima at the equinoxes, and a mean annual value of 8 x 10 to the 7th per cu cm. The average nocturnal variation shows a factor of 2 increase between sunset and sunrise.

Kirchhoff, V. W. J. H.; Clemesha, B. R.; Simonich, D. M.



Sodium nightglow measurements and implications on the sodium photochemistry  

NASA Astrophysics Data System (ADS)

Sodium nightglow measurements made at Sao Jose dos Campos (23.2 deg S) with a tilting filter photometer over a period of two years show that on the average the intensities reach a minimum close to local midnight. Between midnight and dawn the intensity remains fairly constant or increases slightly. The most consistent feature is the premidnight decrease in intensity. Seasonal variations show peak intensities at the equinoxes, the stronger one occurring in autumn. In a few cases the nocturnal variation does not follow the average trend, showing rather strong peaks in intensity which have been related to dynamic effects. Calculations based on the photochemistry described require the reaction rate for Na plus O3 yielding NaO(asterisk) plus O2 to be much larger than the rate for the analogous hydrogen reaction, in agreement with a recent suggestion in the literature that the above reaction proceeds through the so-called electron jump mechanisms.

Kirchhoff, V. W. J. H.; Clemesha, B. R.; Simonich, D. M.



Convenio-SEMA/ARH Relatorio Technico Sobre Levantamento dos Defensivos Agricolas Aplicados nas Bacias Hidrograficas dos Mananciais que Servem de Abastecimento Publico (Conference Technical Report on Survey of Farmland Protection in Hydrographic Basins of Sources Used for Public Supply).  

National Technical Information Service (NTIS)

This report is based on a 1975 study conducted by the Water Resources Administration, with the support of the Special Secretariat for Environmental Protection. It describes the types and quantities of farmland protection projects undertaken in the various...

R. P. Streitemberger A. Antunes de Almeida J. O. Picheth Neto



Avaliação do padrão de sono dos profissionais de Enfermagem dos plantões noturnos em Unidades de Terapia Intensiva Evaluation of the sleep pattern in Nursing professionals working night shifts at the Intensive Care Units  

Microsoft Academic Search

objective: This study aimed to assess the quality of sleep and verify the presence of excessive daytime somnolence in Nursing professionals working night shifts at the Intensive Care Units of the Central Institute of Hospital das Clínicas da Faculdade de Medicina da Universidade de São

Juliana Inhauser; Acioli Barboza; Edvaldo Leal de Moraes; Eloísa Aparecida Pereira; Rubens Nelson; Amaral de Assis


Evaluation of the sleep pattern in Nursing professionals working night shifts at the Intensive Care Units Avaliação do padrão de sono dos profissionais de Enfermagem dos plantões noturnos em Unidades de Terapia Intensiva  

Microsoft Academic Search

Objective: This study aimed to assess the quality of sleep and verify the presence of excessive daytime somnolence in Nursing professionals working night shifts at the Intensive Care Units of the Central Institute of Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo. Methods: Seventy-five Nursing professionals were evaluated: 33% were registered nurses and 66% were licensed

Juliana Inhauser; Acioli Barboza; Edvaldo Leal de Moraes; Eloísa Aparecida Pereira; Rubens Nelson; Amaral de Assis


Avaliação dos erros ou falhas de preenchimento dos atestados de óbito feitos pelos clínicos e pelos patologistas Comparison between death certificates filling errors or lack of filling fields done by pathologists and physicians  

Microsoft Academic Search

Introduction: The correct filling of Death Certificate (DC) is very important, however is usually neglected. Objectives: To compare DC filled by the pathologists and by the physicians, in relation to the number of mistakes and also the number of fields not filled. Methods: We compared all DC filled by physicians from the Hospital de Base (HB) and DC filled by

Cleber de Oliveira Stuque; José Antônio Cordeiro; Patricia Maluf Cury


Association of sulfur dioxide exposure with circulatory system deaths in a medium-sized city in Brazil.  


There is a demonstrable association between exposure to air pollutants and deaths due to cardiovascular diseases. The objective of this study was to estimate the effects of exposure to sulfur dioxide on mortality due to circulatory diseases in individuals 50 years of age or older residing in São José dos Campos, SP. This was a time-series ecological study for the years 2003 to 2007 using information on deaths due to circulatory disease obtained from Datasus reports. Data on daily levels of pollutants, particulate matter, sulfur dioxide (SO2), ozone, temperature, and humidity were obtained from the São Paulo State Environmental Agency. Moving average models for 2 to 7 days were calculated by Poisson regression using the R software. Exposure to SO2 was analyzed using a unipollutant, bipollutant or multipollutant model adjusted for mean temperature and humidity. The relative risks with 95%CI were obtained and the percent decrease in risk was calculated. There were 1928 deaths with a daily mean (± SD) of 1.05 ± 1.03 (range: 0-6). Exposure to SO2 was significantly associated with mortality due to circulatory disease: RR = 1.04 (95%CI = 1.01 to 1.06) in the 7-day moving average, after adjusting for ozone. There was an 8.5% decrease in risk in the multipollutant model, proportional to a decrease of SO2 concentrations. The results of this study suggest that residents of medium-sized Brazilian cities with characteristics similar to those of São José dos Campos probably have health problems due to exposure to air pollutants. PMID:22892828

Amancio, C T; Nascimento, L F C



Granular cell tumor presenting as a tongue nodule: two case reports  

PubMed Central

Introduction Granular cell tumor is an uncommon neoplasm that can occur in any part of the body, including the orofacial region. The tumor is usually benign, but there are reports of cases in which the tumor shows a locally aggressive behavior, malignancy, and distant metastases. The most widely accepted hypothesis is that granular cell tumor arises from the altered metabolism of Schwann cells. The tumor is typically asymptomatic and appears as a nodule that does not exceed 3 cm. Case presentation In case 1, a 26-year-old Caucasian man was seen at the Oral Medicine out-patient clinic of the São José dos Campos Dental School, Universidade Estadual Paulista, with a 'small blister on the tongue', which he had noted approximately three years ago. The nodule was located on the dorsum of the tongue, measured about 1.5 cm in diameter, and was not tender to palpation. Treatment consisted of an excisional biopsy performed on the basis of the diagnostic hypothesis of granular cell tumor, which was confirmed by microscopic analysis. In case 2, a 31-year-old Caucasian woman attended the out-patient clinic of the São José dos Campos Dental School, Universidade Estadual Paulista, with a five-year history of a 'painful lump on the tongue'. Intra-oral examination revealed the presence of a nodular lesion measuring approximately 0.8 cm in diameter, which was located deep in the submucosa of the right lateral margin of the tongue. Treatment consisted of an excisional biopsy performed on the basis of the differential diagnosis of neurofibroma and granular cell tumor. Microscopic analysis defined the final diagnosis of granular cell tumor. Conclusions Granular cell tumor is an uncommon tumor that must be carefully diagnosed and treated correctly.




Microsoft Academic Search

Palavras chaves: Marketing esportivo; Empreendimentos esportivos; Planejamento. Abstract. This study, of exploratory character, it has for intention to evaluate the main stages of the sports marketing adopted by the Organization Committee in the promotion of 71ª edition of the Open Games of the São Paulo state carried through in October of the 2007 in the city of Praia Grande. This





Microsoft Academic Search

This study, of exploratory character, it has for intention to evaluate the main stages of the sports marketing adopted by the Organization Committee in the promotion of 71ª. edition of the Open Games of the São Paulo state carried through iin October of the 2007 in the city of Praia Grande. This study used research of qualitative boarding, understanding, bibliographical

Bruno Araújo; Guedes Tegani


Impressos hospitalares e a dinâmica de construção de seus sentidos: o ponto de vista dos profissionais de saúde  

Microsoft Academic Search

Based on interviews in a hospital in Rio de Janeiro, the authors analyze strategies, in- terests, assumptions, and concerns among producers of patient information leaflets on infec- tious diseases. Most such publications followed a linear communications model, according to which health messages produce a sole and single effect on their audience. Visual communica- tions are seen as a field of

Brani Rozemberg; Ana Paula Penna da Silva; Paulo Roberto Vasconcellos-Silva



Cornell Produces a Video of Safety Dos and Don'ts for the YouTube Set  

ERIC Educational Resources Information Center

|Don't drink too much, download pirated files, light candles, or prop open doors. Warnings like those pervade the weighty work of admonition known as the student handbook. However, Allen J. Bova wonders, "Who ever reads that?" So Mr. Bova, director of risk management and insurance at Cornell University, tried to reach students with a video. This…

Lipka, Sara



SISTEMÁTICA, MORFOLOGIA E FISIOLOGIA Chave para as Espécies de Cigarrinhas (Hemiptera: Cicadellidae: Cicadellinae) Vetoras da Clorose Variegada dos Citros (CVC)  

Microsoft Academic Search

A key to the identification of Dilobopterus costalimai Young, Acrogonia sp., Oncometopia facialis (Signoret), Bucephalogonia xanthophis (Berg) e Plesiommata corniculata Young based on external morphology and male genitalia is presented. These sharpshooter leafhoppers are considered vec- tors of Xylella fastidiosa to citrus. The first four species are collected in several habitats such as orchard, forest, cultivable plain, swamp, sugar cane,




Microsoft Academic Search

Resumo Pretendeu-se identificar as percepções de professores de 1ºCEB, sobre as suas dificuldades sobre a educação sexual e analisar alguns factores individuais com influência nestas concepções. Os dados recolhidos por um questionário construído para o efeito foram tratados estatisticamente no programa SPSS. Os resultados sugerem maiores dificuldades na área de expressões da sexualidade e menores na de relações interpessoais. Como



Buen Comienzo, Buen Futuro: El Bebe de Dos Meses (Healthy Start, Grow Smart: Your Two-Month-Old).  

ERIC Educational Resources Information Center

|Distributed by the U.S. Departments of Agriculture, Education, and Health and Human Services, this Spanish-language pamphlet provides parents with information and advice about their infants in the second month of life. The pamphlet outlines typical infant behavior at 2 months of age, the need for regular visits to a physician, health insurance,…

Department of Education, Washington, DC.


[The occurrence, distribution and toxicity of cyanobacteria in the estuary of Lagoa dos Patos, Rio Grande do Sul].  


Several blooms of Microcystis aeruginosa have been observed in the Patos Lagoon estuary during the last fifteen years without a proper investigation of their ecological importance or possible toxicity. The present study has identified and quantified the presence of cyanobacteria in the Patos Lagoon estuary, particularly of M. aeruginosa. During this survey, identification and quantification of the main phytoplankton groups were done in relation to geographical distribution in the estuary. The presence of M. aeruginosa colonies in the estuarine region confirmed their superficial distribution throughout the estuarine waters during twelve months with a maximum of 1, 3.10(6) cells. L-1 in December, 1994 and a minimum of 1, 5.10(5) cells. L-1 in August, 1995 and also confirmed that M. aeruginosa originated from waters in the north of the estuary. The period of the highest cell and colonies densities was coincident with high chlorophyll-a levels in surface waters. Toxicity of M. aeruginosa bloom material was determined by bioassay and concentrations of hepatotoxins microcystins were identified by HPLC-DAD. M. aeruginosa blooms were considered highly toxic, presenting a 24 h-LD50 lower than 100 mg.Kg-1 b.w. and a toxin content higher than 1 d.w. Several microcystin variants were found in the extracts with microcystin-LR predominating. PMID:10765462

Matthiensen, A; Yunes, J S; Codd, G A



Evaluation of PTW Seven29 for tomotherapy patient-specific quality assurance and comparison with ScandiDos Delta4  

PubMed Central

For routine quality assurance of helical tomotherapy plans, an alternative method, as opposed to the TomoTherapy suggested cylindrical solid water phantom with film and ionization chamber, is proposed using the PTW Seven29 2D-ARRAY inserted in a dedicated octagonal phantom, called Octavius. First, the sensitivity of the array to pitch was studied by varying the pitch during planning to 0.287, 0.433, 1.0, and 2.0. For each pitch selected, the dependence on field size was investigated by generating plans with field widths (FWs) of 1.06 cm, 2.49 cm, and 5.02 cm, for a total of 12 plans. Secondly, a total of 15 patient QA plans were delivered using helical tomotherapy with the Delta4 and Seven29/Octavius for comparison. Using the clinical gamma criteria, 3% and 3 mm, all FW and pitch plans had a passing percentage of >90%. For patient QA plans, the average gamma pass percentage was 97.0% (94.4–99.8%) for the Delta4 and 97.6% (92.5-100.0%) for the Seven29/Octavius. Both the Seven29/Octavius and Delta4 performed to a high standard of measurement accuracy and had a 90% or greater gamma percent for all plans and were considered clinically acceptable.

Myers, Pamela; Stathakis, Sotirios; Gutierrez, Alonso N.; Esquivel, Carlos; Mavroidis, Panayiotis; Papanikolaou, Niko



Comparación de dos sistemas de medida de las concentraciones de glucosa en líquido cefalorraquídeo en la anestesia intradural hiperbara  

Microsoft Academic Search

® (Beckman Coulter) con las reali- zadas con un glucómetro Ascensia EliteXL&Elite ® durante la anestesia espinal, después de administrar 10 mg de bupivacaína hiperbara para así disponer de un método rápido y fiable al medir las cifras de glucorra- quia durante una anestesia espinal continua y seguir su evolución. PACIENTES Y MÉTODOS: Estudio prospectivo de 34 pacientes bajo anestesia

J. Sánchez Morillo; J. Soliveres Ripoll; N. Estañ Capell; C. Solaz Roldán; P. Viñals Bellido; C. Quiñones Torrelo




Microsoft Academic Search

Resumo - O presente estudo visa avaliar as perdas por vazamento para um setor da rede de distribuição de água da cidade de Piracicaba, SP, Brasil. Para tanto, utiliza-se um procedimento iterativo de avaliação hidráulica que considera as perdas por vazamento e a dependência das demandas com a pressão, acoplado ao simulador hidráulico EPANET 2 (Rossman, 2000), com vistas à

Alexandre Kepler Soares; Luisa Fernanda; Ribeiro Reis


Mamíferos carnívoros e sua relação com a diversidade de hábitats no Parque Nacional dos Aparados da Serra, sul do Brasil  

Microsoft Academic Search

Carnivore mammals and their relation with habitat diversity in Aparados da Serra National Park, southern Brazil. A survey of carnivore mammals was accomplished in Aparados da Serra National Park from February 1998 to March 2000. The park has 10,250 ha and is considered a biodiversity core area of the Atlantic Forest Biosphere Reserve in the Rio Grande do Sul State,

Maria de Fátima M. dos Santos; Mateus Pellanda; Ana Cristina Tomazzoni; Heinrich Hasenack; Sandra Maria Hartz




Microsoft Academic Search

The biological activity of brassinosteroid analogs MH5 and Biobras-6 (BB-6) was evaluated with the objective to determine its effects and establish appropriate doses as possible substitutes or hormonal complements in the process of embryogenic callus formation in potato (Solanum tuberosum, L. var. Desirée). Doses of 0.0001 until 0.25 mg.L -1 of both analogs and two control media were used, which

Olivia Moré; María M. Hernández; Miriam Núñez; Ana Estévez; María E. González



Microsoft Academic Search

We studied the diet of two species of owls, and assessed the rodents communities and their relative densities from March 1996 through February 1997 in the Mapimí Biosphere Reserve, Durango, México: Great Horned Owl (Bubo virginianus) and Barn Owl (Tyto alba). The objectives were to understand the predator-prey relationships by comparing the availability and use of rodents by these owls.

Elizabeth E. ARAGÓN; Benjamín CASTILLO; Alfredo GARZA


Avaliação dos sistemas de classificação e codificação das bacias hidrográficas brasileiras para fins de planejamento de redes hidrométricas  

Microsoft Academic Search

The available classification and codification systems of river basin used by ANEEL, ANA, IBGE, SRH e CNRH were evaluated and the Otto Pfafstetter' system was selected as the more appropriate in the planning of hydrometric networks. Palavras-chave: river basin, classification and codification systems, hydrometric networks, Otto-basin, bacias hidrográficas, sistemas de classificação e codificação, redes hidrométricas, ottobacias.

Wougran Soares Galvão


(BARS) -- Bibliographic Retrieval System, Sandia Shock Compression (SSC) database Shock Physics Index (SPHINX). PC/DOS version 4.0  

SciTech Connect

The Bibliographic Retrieval System (BARS) is a database management system specially designed to retrieve bibliographic references. Two databases are available, (i) the Sandia Shock Compression (SSC) database which contains over 5600 references to the literature related to stress waves in solids and their applications, and (ii) the Shock Physics Index (SPHINX) which includes over 6200 further references to stress waves in solids, material properties at intermediate and low rates, ballistic and hypervelocity impact, and explosive or shock fabrication methods. There is some overlap in the information in the two data bases.

Herrmann, W.; Parker, T.J. [Sandia National Labs., Albuquerque, NM (United States); Mulholland, K. [Career Services, Albuquerque, NM (United States)



Spatial distribution of metals in sediments of the Ribeira Bay, Angra dos Reis, Rio de Janeiro, Brazil.  


This study aims to analyze the spatial distributions of several metals in sediments from five sites in Ribeira Bay, Brazil. Ribeira Bay is a very important area to the local community, due to its artisan fishery, and it also has a biological relevance for many marine species that use mangroves as nursery and feeding sites. According to the results, the area was not considered a metal polluted area. Despite not having a significant source of metals inside the Bay nowadays, Ilha Grande Bay harbors a shipyard, an oil terminal, and a commercial port, as well as two thermonuclear power plants (Angra I e II), all of which indirectly influence the study area. PMID:20188384

Freret-Meurer, N V; Andreata, J V; Meurer, B C; Manzano, F V; Baptista, M G S; Teixeira, D E; Longo, M M



Significação dos processos de comunicação e interação: conceitos dialógicos de idosos residentes em uma instituição de longa permanência  

Microsoft Academic Search

This research has as general aim present dialogs between conceptions of communication and interaction processes in aging. Among the specific objectives, we identified the symbolic representations about technology and communicative processes, analyzed the feelings and meanings of experiences livied using these devices and correlated quantitative and qualitative datas. In this study participated old adults wider or equal than 60 years

Jaqueline Colombo Ely; Adriano Daniel Pasqualotti; Eugênio Giaretta; Felipe Keller; Lia Mara Wibelinger


Chironomidae (Diptera) do Rio Ribeira (divisa dos Estados de São Paulo e Paraná) numa avaliação ambiental faunística  

Microsoft Academic Search

Chironomidae (Diptera) in Rio Ribeira (border between the States of São Paulo and Paraná) in an Environmental faunistic evaluation- During a program of limnological characterization, the macrobenthic community was evaluated in a section of river Ribeira, in the area included of the future reservoir UHE Tijuco Alto. In the four expeditions, during XII\\/95 to IX\\/96, samples were collected in five

Susana Trivinho-Strixino; Giovanni Strixino




Microsoft Academic Search

Mitochondrial DNA sequence polymorphisms identification has important applications in the study of molecular genetic diversity level in domestic animal species. For these studies, the mtDNA control region of maternally inherited, known as D>loop is of particular interest. This study aims to identify mitochondrial D>loop haplotypes throughPCR>RFLPsintwopopulationsoffighting>ca ttle.Sampleswerecollectedfromanimalhairfolliclesfromtwo Mexican fighting>bull herds (Los Encinos (ENC, n= 22) and Montecristo (MC, n= 37)).

Williams Arellano; Ana Maria Sifuentes Rincón; Gaspar Manuel Parra Bracamonte


Avaliação da acurácia dos dados pós-processados de receptores GPS de navegação na determinação de coordenadas planimétricas  

Microsoft Academic Search

The free softwares ASYNC and GAR2RNX are able to read and record real-time observable from the L1 carrier, in binary file, through cable of the transfer connected on GPS receiver of navigation and a laptop through serial port, and also to convert RINEX for the format. In this work, we performed the post-processing this data using the technique of positioning

Julierme Wagner da Penha


Infertilidade associada a defeito microtubular dos espermatozóides de jumento (Equus asinus) avaliados por microscopia eletrônica de transmissão  

Microsoft Academic Search

A donkey infertility was described by transmission electron microscopy (MET). The spermiogram evaluated by light microscopy showed low sperm motility and high concentration of abnormal sperm with proximal cytoplasmic droplets. The material was evaluated by MET, where it was observed disarrangement of microtubules, causing irregular protrusions in the spermatic neck. The last test done was the in vivo fertility, using

André Maciel Crespilho; Fernanda da Cruz Landim-Alvarenga; Frederico Ozanam Papa



A DOS-based Version of the VICAR Image Processing System for Planetary Image Reduction, Navigation, and Measuring  

Microsoft Academic Search

The Video Image Communication and Retrieval (VICAR) Image Processing System, developed by the JPL Multimission Image Processing Laboratory, has been a standard tool for analyzing space-probe images since the 1960s. VMS versions through 8.0 are available. Yet now, the advent of powerful, inexpensive microcomputers has made possible \\

T. Hockey; C. Barnet




EPA Science Inventory

This ninth edition reports on a workshop on global climate change that was held in Cairo, Egypt, on May 10-12, 1999. The workshop represented a successful partnership between EPA's Office of International Affairs, Office of Research and Development (ORD), Office of Air and Radiat...



Microsoft Academic Search

Os imigrantes estabelecidos num país cuja língua não é a mesma de sua terra de origem enfrentam singulares problemas quando crianças, enquanto gerações posteriores a assimilam e precisam fazer frente às questões de identidade pessoal e cultural. A situação coloca desafios ainda mais complexos, quando a cultura dominante no país anfitrião subestima a língua materna do imigrante. Este artigo analisa

Lourdes C. Rovira


Avaliação do desempenho dos reagentes do tempo de tromboplastina parcial ativada utilizados para detectar o anticoagulante lúpico  

Microsoft Academic Search

Assessment of the performance of reagents of activated partial thromboplastin time used to detect the lupus anticoagulant abstract Introduction: The lupus anticoagulant is an immunoglobin which belongs to the antiphospholid antibodies family. Its in vitro function is to interfere with coagulation tests that are dependent on phospholipids. The activated partial thromboplastin time (APTT) is a test used as screening on

Iracema Carvalho Ferrari; Izolete Aparecida Thomazini Santos



Composição e atividades antioxidante e antimicrobiana dos óleos essenciais de cravo-da-índia, citronela e palmarosa  

Microsoft Academic Search

Composition and antioxidant and antimicrobial activities of clove, citronella and palmarosa essential oils. Antioxidant and antimicrobial activities, as well as the chemical composition of essential oils of clove (Caryophillus aromaticus L.), citronella (Cymbopogon winterianus) and palmarosa (Cymbopogon martinii) were studied. Antioxidant activity was evaluated by DPPH (2,2-diphenyl-1-picrylhydrazyl) method and the antimicrobial activity determined by the microdilution method. The minimal inhibitory



Efectos de dos métodos de termoterapia sobre la respuesta vascular aguda y parámetros hemodinámicos en un grupo de sujetos sanos  

Microsoft Academic Search

ObjectiveRecently, non-pharmacological resources to relieve pain like hot packs and ultrasound (US) have become common in clinical practice. However, little experimental evidence is available about the possible mechanisms through which these methods bring about pain relief. We aimed to determine the effects of hot packs and US on the acute vascular response and on hemodynamic parameters in healthy subjects.

R. Ramírez-Vélez; A. García Sánchez; C. J. Martínez Betancourt; C. A. Parra Galeano; J. G. Ortega; C. A. López Alban; R. A. Agredo Zúñiga


Desafíos laborales en América Latina después de dos décadas de reformas estructurales. Bolivia, Paraguay y Perú 1997-2008  

Microsoft Academic Search

El volumen reune diversos trabajos sobre los mercados laborales en los tres países durante la década comprendida entre 1997 y 2008. En los tres casos se hacen análisis globales de la situación laboral de cada país así como análisis particualres de las áreas rurales y las áreas urbanas. Lo que se encuentra es que los mercados laborales no se habrían

Julio Ramírez; Marcelo Perera; Cynthia González


Validade da velocidade crítica para a determinação dos efeitos do treinamento no limiar anaeróbio em corredores de endurance  

Microsoft Academic Search

Validity of the critical velocity for determination of the training effects on the anaerobic threshold in endurance runners. The objective of this study was to analyze the validity of the critical velocity (CV) to evaluate the anaerobic threshold (AnT), before and after two different training programs in endurance athletes. Seventeen male runners (33.4 ± 4.4 years; 62.7 ± 4.3 kg;

BS Denadai; MJ Ortiz; S Stella; MT Mello


Por que as firmas industriais dos países em desenvolvimento crescem após a estréia no mercado internacional? Evidências  

Microsoft Academic Search

Firstly, we show that innovative new-exporters in 2 001-2002 become larger and more productive than innovative non-exporters. However, our major contribution relies on the characterization o f the technological patterns behind the learning-by-exporting hypothesi s. Whilst innovative activities in general (but especially intramural R& D) were important to all firms, other sources of information were found to be very important

Bruno César Araújo; Sérgio Kannebley Jr; Beatriz Selan


Efeito dos estais no diagrama de radiacao de antenas Cassegrain. (Effect of struts on the radiation diagram of Cassegrain antennas).  

National Technical Information Service (NTIS)

This work presents a study on the effect of subreflector support members of Cassegrain antennas using the theory of scattering by cylindrical structures. Expression for the surface current densities and arbitrary cross sections cylinders are developed, an...

L. M. D. Henriques



Protective Action Evaluator for Chemical Emergencies: A user's manual (MS-DOS reg sign Version 1. 0)  

SciTech Connect

The protective action evaluator for chemical emergencies (PAECE) is a package of computer programs developed to simulate an emergency response to airborne release of chemical agents. This user's manual documents the use of PAECE in the evaluation of chemical agent emergencies in areas potentially affected by the Chemical Stockpile Emergency Planning Program (CSEPP). This research documents the development and use of a method for the evaluation of protective action alternatives in conjunction with potential chemical agent emergencies. The user's manual highlights the development of the PAECE model, the selection of appropriate parameters to represent various scenarios, generate results and interpret them in the analysis of protective action alternatives during the planning and preparedness phases of the CSEPP. The PAECE model is designed to evaluate protective actions in the context of potential accidents, the emergency management systems required to implement protective actions, and the anticipated consequences for human receptors. The implications and uncertainties of the model are discussed to provide potential users with insight into the use, limitations, and uncertainties associated with evaluating the effectiveness of protective action alternatives. While PAECE represents a unique and powerful tool to evaluate protective actions, the user must exercise caution when interpreting the results to avoid misrepresentation. The expected value interpretation of the PAECE results biases the results toward extreme values. Hence, the PAECE results have to be interpreted in the context exposures similar to those represented by the unprotected exposure and the protection capacity that tend to be associated with people completing the implementation of the required actions later than and earlier than average, respectively. 16 refs., 24 figs., 1 tab. (JF)

Rogers, G.O.; Sharp, R.D.



Spatial distribution of metals in sediments of the Ribeira Bay, Angra dos Reis, Rio de Janeiro, Brazil  

Microsoft Academic Search

This study aims to analyze the spatial distributions of several metals in sediments from five sites in Ribeira Bay, Brazil. Ribeira Bay is a very important area to the local community, due to its artisan fishery, and it also has a biological relevance for many marine species that use mangroves as nursery and feeding sites. According to the results, the

N. V. Freret-Meurer; J. V. Andreata; B. C. Meurer; F. V. Manzano; M. G. S. Baptista; D. E. Teixeira; M. M. Longo




Microsoft Academic Search

This study analyses the impact of institutional characteristics on the students' performance in the National Examination of Higher Education Courses (Provão). A sample of more than 92500 students from Management, Law and Civil Engineering who had made the tests in the year 2000 was analyzed. Multilevel models have been fitted because these data present an evident hierarchical structure. Regarding individual

Maria Dolores Montoya Diaz




Microsoft Academic Search

The response ofmaize towards application ofnitrogen, in rotation with Canavalia, under two cultivation types, at Río Hato, Panamá, 1993-94. An experiment was carried out for two consecutive years in order to evaluate the response of maize with the legume Canavalia ensiformis, and compared to a crop without legumes. The rotative plots were established at the beginning of the rainy season

Román Gordón; Jorge Franco; Nivaldo De Gracia; Andrés González



Interaccoes dos Metais Pesados com Organismos Biologicos e Proteinas (Interactions of Heavy Metals with Biological Organisms and Proteins).  

National Technical Information Service (NTIS)

The work developed consisted of determining parameters for the complexation of Cu(II), Pb(II) and Zn(II) with ligands of great structural complexity, including cell walls of microorganisms such as algae Selenastrum capricornutum Printz and bacteria Methan...

A. C. L. Conceicao



Avaliação dos fatores de risco para mucosite oral em um grupo de pa- cientes sob terapia de transplante  

Microsoft Academic Search

The bone marrow transplantation is a procedure where agressive medications are used. One of complications that determine the morbidity to the patients is the oral mucositis. Objective: to identify the risk factors associated with the appearance of early oral mucositis in patients undergoing bone marrow transplant (BMT) in Santa Casa Hospital in São Paulo. Material and method: we retrospectively re-

Ivo Bussoloti



Analise dos parametros de filme radiografico para uso em TC. (Parameter analysis of radiography film for TC use).  

National Technical Information Service (NTIS)

The possibilities of use x-ray industrial films on the projection survey for image processing, jointly with the noise analysis in films, when used as a radiation detectors in computerized tomography are studied. (C.G.C.). (Atomindex citation 22:060343)

L. S. Souza R. T. Lopes



Drenaje percutáneo de ascitis secundaria a pancreatitis aguda grave asociada a síndrome compartimental abdominal. Informe de dos casos  

Microsoft Academic Search

Summary Background: There are few reports that report the association between severe acute pancreatitis (SAP) and the presence of abdominal compartment syndrome (ACS). The aggressive treatment of ACS through a formal celiotomy, ascitic fluid evacuation and temporary abdominal closure (TAC) is associated with immediate improvement in all physiological parameters of a critically ill patient. Unfortunately, this surgical strategy carries a

Luis Alberto; Patricio Sánchez-Fernández; Carlos Salazar-Lozano; Humberto Salazar-Murillo



First approach to studies of sulphur electron DOS in prostate cancer cell lines and tissues studied by XANES  

NASA Astrophysics Data System (ADS)

Urological cancers comprise approximately one-third of all cancers diagnosed in men worldwide and out of these, prostate cancer is the most common one (WHO World Cancer Report, 2008). Several risk factors such as age, hormone levels, environmental conditions and family history are suspected to play a role in the onset of this disease of otherwise obscure aetiology. It is therefore the medical need that drives multidisciplinary research in this field, carried out by means of various experimental and theoretical techniques.Out of many relevant factors, it is believed that sulphur can take an important part in cancer transformations. We have investigated the prostate cancer cell lines and tissues, along with selected organic and inorganic compounds used as references, by the X-ray absorption fine structure spectroscopy near the sulphur edge energy region. Particularly, the comparison of the experimental results collected during XANES measurements and theoretical calculations of electron density of states with use of the FEFF8 code and LAPW (linearised augmented plane-wave) method has been performed and in this work the first results of our studies are presented.

Kwiatek, Wojciech M.; Czapla, Joanna; Podgórczyk, Magdalena; Kisiel, Andrzej; Konior, Jerzy; Balerna, Antonella



Efeito da idade cronológica na distribuição dos futebolistas por escalões de formação e pelas diferentes posições especificas  

Microsoft Academic Search

Relative age effects among youth soccer players according to playing positions This study analysed the distribution of the birthdates from soccer players according to each player's age-group and specific position on the field. The players from the Lisbon Soccer Association (n=188) were divided into their age-groups during the 2004\\/2005 season: Under 8s (n=26), Under 11s (n=39), Under 13s (n=43), Under

H. A. Folgado; P. F. Caixinha; J. Sampaio; V. Maçãs


Geomorphologic Evolution of a Sand Spit Located in the Mouth of a Choked Coastal Lagoon. Lagoa dos Patos: Southern Brazil  

Microsoft Academic Search

The estuarine portion of the Patos Lagoon behaves as a choked lagoon where circulation patterns are driven mostly by wind and freshwater runoff which can reach up to 10,000 m3\\/s during the rainfall season. Wind direction influences both local and large-scale circulation patterns. Under NE winds pressure gradient raises along the inlet and retreating coastal waters favors flushing of the

J. A. Antiqueira; L. J. Calliari; J. A. S. Fontoura


Nuclear Geophysics in Space and Atmospheric Research at INPE/BRAZIl (Instituto de Pesquisas Espasciais, San Jose dos Compos, Brazil).  

National Technical Information Service (NTIS)

During the last years, INPE's research in Nuclear Geophysics has developed in fields of interest to the Institute, the scientific community and the society in general. In the space research field it may be considered as a contribution to the history of me...

D. J. R. Nordemann E. B. Pereira E. V. A. Marinho F. Sircilli Neto



Gordon and Mike's ICT Podcast: The Jester and DoS, Preventing Attacks, Seizure of Domain Names and Other Topics  

NSDL National Science Digital Library

Gordon and Mike's ICT Podcast offers perspectives on the information and communication technologies (ICT) industries from Gordon Snyder and Mike Qaissaunee. In this podcast, the hosts discuss a variety of topics including a recent website attack and how to prevent such attacks, the seizure of domain names by the Department of Homeland Security, Google and bugs in Flash and more. Running time for the show is 32:30.This podcast is available for direct download in mp3 format from the Libsyn site, or click here to subscribe to the whole series in iTunes.

Snyder, Gordon F.; Qaissaunee, Michael



A influência da ocupação profissional na flexibilidade global e nas amplitudes angulares dos membros inferiores e da lombar  

Microsoft Academic Search

Resumo - O desenvolvimento tecnológico no ambiente de trabalho gerou um au- mento no tempo em que os indivíduos permanecem sentados enquanto trabalham em escritórios. Isto pode estar influenciando negativamente capacidades físicas inatas como a flexibilidade da cadeia posterior do corpo, porém poucos são os estudos que avaliaram a influência do trabalho nesta capacidade física. Esta avaliação pode contribuir para

Sandra Aliberti; Bergson Weber; Cabral Queiroz; Denise Pripas; Isadora Kieling; Adriana Elisa Sellmer; Amaro Malvestio; Marcel Tomonori Sera


Pustulosis aguda exantemática generalizada: aportación de dos casos Acute Generalized Exanthematic Pustulosis: A Report of Two Cases  

Microsoft Academic Search

Summary Amicrobian pustulosis is referred to a group of entities with several sterile pustules, with a sudden onset and a rapid and selflimited resolution, simmetrically distributed in face and groins, usually related to drug intake or viral infection. We report two cases of acute generalized exanthematous pustulosis in two patients without personal or family history of psoriasis. The lesions appeared

Susana Mallo; Emilia Fernández; Esther Cardeñoso; Jorge Miguel Ingelmo; Agustín Martín Pascual; Susana Mallo García


Development of pediatric sleep questionnaires as diagnostic or epidemiological tools: a brief review of dos and don'ts.  


Questionnaires are a useful and extensively used tool in clinical sleep medicine and in sleep research. The number of sleep questionnaires targeting the pediatric age range has tremendously increased in recent years, and with such explosion in the number of instruments, their heterogeneity has become all the more apparent. Here, we explore the theoretical and pragmatic processes required for instrument design and development, i.e., how any questionnaire, inventory, log, or diary should be created and evaluated, and also provide illustrative examples to further underline the potential pitfalls that are inherently embedded in every step of tool development. PMID:20952230

Spruyt, Karen; Gozal, David




Microsoft Academic Search

The business, in the present world configuration, is characterized by globalization, production proc- esses' automation and fast technological evolution (including hardware, software and telecommunications). These changes lead to the valorization of human resources and information as strategic resources for the or- ganizations to promote competitive advantage and to guarantee their survival. In this context, organizations' needs for information exchange and

Fábio Câmara; Araújo de Carvalho; Ernesto Escosteguy Castro; M. Eng; Aline França de Abreu


LEVANTAMENTO DOS FATORES DE RISCO PARA DOENÇAS CRÔNICAS EM UNIVERSITÁRIOS Survey on risk factors for chronic diseases in college students  

Microsoft Academic Search

The study proposed to identify the risk factors for diabetes mellitus (DM), systemic arterial hypertension (HAS) and cardiovascular diseases (DCV) in college students of a private institution in the city of Fortaleza. Two hundred students joined in the study, being submitted to an evaluation survey, in which were obtained data on: sex, age, history of tobacco use, alcoholism, sedentariness and

Vívian Saraiva Veras; Luciana Zaranza Monteiro; Camila Aparecida Pinheiro; Antônia Tayana da Franca; Mônica Helena; Neves Pereira; Renan Magalhães Montenegro


HiFIND: A high-speed flow-level intrusion detection approach with DoS resiliency  

Microsoft Academic Search

Global-scale attacks like worms and botnets are increasing in frequency, severity and sophistication, making it critical to detect outbursts at routers\\/gateways instead of end hosts. In this paper, leveraging data streaming techniques such as the reversible sketch, we design HiFIND, a High-speed Flow-level Intrusion Detection system. In contrast to existing intrusion detection systems, HiFIND: (i) is scalable to flow-level detection

Zhichun Li; Yan Gao; Yan Chen



Comportamento dos sistemas de medicao em funcao da tarifa horosazonal - THS. (Measure systems behaviour based in season custom tariff).  

National Technical Information Service (NTIS)

The different measure systems are evaluated, based in the season custom tariff establishment, resulting in the load modulation and load reduction, during peak hour. Comparative analysis of the load curves are elaborated before and after the new tariff int...

S. Yshimaru A. A. Castro



A influência dos captadores de vento na ventilação natural de habitações populares localizadas em climas quentes e úmidos  

Microsoft Academic Search

Warm humid regions cover great part of the Brazilian territory. In those regions, natural ventilation associated to solar protection is the most efficient building design strategy to reach thermal comfort by passive means. One of the strategies to increase natural ventilation in buildings is the use of wind-catchers, which consist of shafts with openings located above the roof, designed to

Denise Gonçalves Ferreira Lôbo; Leonardo Salazar Bittencourt


Modelos cosmologicos tipo Bianchi I, II, VIII, IX e Kantowski-Sachs com fluido perfeito e campos eletromagneticos com corrente de condutividade. (Bianchi - I, II, VIII, IX and Kantowski-Sachs-like cosmological models with perfect fluid and electromagnetic fields with conductivity current).  

National Technical Information Service (NTIS)

Three processes of solutions of the Einstein-Maxwell equations for Bianchi - I, II, VIII, IX and Kantowski-Sachs-like cosmological models with perfect fluid in magnetohydrolodynamical regimem are presented. Diagonal Bianchi-like models are considered with...

R. Portugal



Protección contra babesiosis bovina con una vacuna mixta de Babesia bovis y Babesia bigemina derivada de cultivo in vitro bajo una confrontación de campo. Inmunización en un área libre de la enfermedad Protection against bovine babesiosis with a mixed in vitro culture-derived Babesia bovis and Babesia bigemina vaccine under field challenge. Immunization in a disease-free area  

Microsoft Academic Search

In Mexico, there is an attenuated live vaccine against bovine babesiosis that has been shown to confer protection to susceptible cattle immunized and challenged under controlled conditions. Immunized cattle survive a challenge using known numbers of virulent parasites of both Babesia bovis and Babesia bigemina. However, stress-inducing field situations such as transportation or tick-transmitted infection have not been taken into

Germinal Jorge; Cantó Alarcón; Jesús Antonio; Álvarez Martínez; Edmundo Enrique; Rojas Ramírez; Juan Alberto Ramos Aragón; Juan Joel Mosqueda Gualito; Carlos Agustín Vega; Julio Vicente; Figueroa Millán



Geracao de Feixes de Eletrons em Movimento Ciclotronico e Sua Interacao Com Campos Eletromagneticos em Cavidades Fracamente Irregulares: Um Estudo Aplicado a Elaboracao Conceitual de Um Girotron de 35 GHz (Generation of Electron Beams in Cyclotron Motion and Its Interaction with Electromagnetic Fields in Weakly Irregular Cavities: An Applied Study and Conceptual Design of a 35 GHz Gyrotron).  

National Technical Information Service (NTIS)

An investigation is presented for different phenomena that occur in a gyrotron: (1) generation and transport of helical electron beams; (2) interaction of electrons in cyclotron motion with a transverse electric mode in resonant cavities operating near cu...

J. J. Barrosodecastro



Regulation of Short-Term Interest Rates through Monetary Action (Régulation des taux d'intérêt à court terme par l'action monétaire) (Regulación de las tasas de interés a plazo mediante la intervenció en el campo monetario)  

Microsoft Academic Search

La libéralisation croissante des mouvements de capitaux internationaux et la progression de l'intégration économique ont mis en lumière le problème de la prévention des trop grandes différences de taux d'intérêt à court terme entre pays à marchés monétaires développés. L'avantage d'un tel contrôle est déterminé, en partie, par l'aptitude des autorités monétaires à intervenir facilement et à bref délai en

William H. White



Phenology of pea crop (Pisum sativum L. var. Santa Isabel) in the Bogotá plateau at open field and under plastic cover Fenología del cultivo de arveja (Pisum sativum L. var. Santa Isabel) en la sabana de Bogotá en campo abierto y bajo cubierta plástica  

Microsoft Academic Search

The assessment of environment effects on plant development is important to identify suitable zones and schedule crop production. In this research, plant development of pea (Pisum sativum L. var. Santa Isabel) was evaluated under Bogotá flat highland, Colombia, environmental conditions (2640 m over sea level, 14°C, 80% R.H., rainfall of 800 mm\\/year). Two experiments were done under plastic cover (21°C

Julio Ricardo; Galindo Pacheco; Jairo Clavijo Porras



Ricostruzione del campo di vento mediante modello 'mass consistent' e simulazione della dispersione di inquinanti passivi sul terreno complesso e superficie disomogenea. (Wind field modelling: Mass consistent model and simulation of atmospheric dispersion of passive pollutants over complex terrain and heterogeneous surfaces).  

National Technical Information Service (NTIS)

Numerical modeling techniques are applied to study the atmospheric dispersion of passive pollutant over complex terrain. A code uses the winds provided by a diagnostic wind model utilizing terrain following coordinates, to advect and diffuse the effluent....

M. Busuoli G. Zanini



Efeito do campo magnetico planar sobre as propriedades de transporte eletrico na heterojuncao n-AlGaAs/GaAs e medidas de fotoluminescencia em amostras de GaAs. (Effect of planar magnetic field on electron transport properties of n-AlGaAs/GaAs heterojunction and photoluminescence measures in GaAs samples).  

National Technical Information Service (NTIS)

The effects of magnetic fields applied parallel to the interface of an heterojunction n-Al Ga As is studied. A qualitative analysis has shown that this field modifies the Fermi surface of the two dimensional electron gas (2 DEG) confined on the heterojunc...

A. R. Alves



Ondas de choque em jatos de quasares e objetos BL Lacertae  

NASA Astrophysics Data System (ADS)

Este trabalho é parte de um projeto que vem sendo realizado há dois anos no CRAAM, cujos objetivos principais são analisar e aplicar um modelo generalizado de ondas de choque em jatos relativísticos de plasma, presentes em quasares e objetos BL Lacertae, para explicar a variabilidade observada nestes objetos. O método consiste em uma decomposição de curvas de luz em séries de explosões similares, em várias freqüências, baseando-se em uma evolução espectro-temporal média das explosões. A partir da evolução média, um ajuste de cada explosão é feito com base em equações empíricas, modificando-se apenas parâmetros específicos de cada explosão. Inicialmente o modelo foi aplicado ajustando-se as curvas de luz a explosões delineadas por uma evolução do choque em três estágios, segundo a predominância do processo de emissão: síncrotron, Compton e adiabático. Entretanto, nesta nova fase de projeto, visando uma parametrização mais concisa, uma otimização do algoritmo de ajuste e uma convergência mais rápida, a formulação para cada evento foi assumida com uma evolução em apenas dois estágios: subida e descida. Isto possibilitou uma ótima delineação das curvas de luz das fontes OV236, OJ287, 3C273 e BL Lac, entre 1980 e 2000, nas freqüências 4.8, 8.0, 14.5 e 22 GHz, utilizando-se dados do Observatório da Universidade de Michigan, do Observatório do Itapetinga (Atibaia SP) e do Observatório Metsähovi. Como conclusões importantes, verificou-se que: os parâmetros ajustados descrevem o comportamento do jato; os valores do índice que descreve a expansão do jato sugerem que o mesmo se expande de uma forma não-cônica; o campo magnético é turbulento atrás da frente de choque; e as peculiaridades das explosões são devidas à influência de grandezas tais como o coeficiente da distribuição espectral de energia dos elétrons, a intensidade de campo magnético e o fator de feixe Doppler, no início do choque.

Melo, F. E.; Botti, L. C. L.



Open-field host specificity test of Gratiana boliviana (Coleoptera: Chrysomelidae), a biological control agent of tropical soda apple (Solanaceae) in the United States  

SciTech Connect

An open-field experiment was conducted to assess the suitability of the South American leaf feeding beetle Gratiana boliviana Spaeth for biological control of Solanum viarum Dunal in the USA. An open-field test with eggplant, Solanum melongena L., was conducted on the campus of the University of Buenos Aires, Argentina, and a S. viarum control plot was established 40 km from the campus. One hundred adult beetles were released in each plot at the beginning of the experiment during the vegetative stage of the plants, and forty additional beetles were released in the S. melongena plot at the flowering stage. All the plants in each plot were checked twice a week and the number of adults, immatures, and eggs recorded. Results showed almost a complete rejection of eggplant by G. boliviana. No noticeable feeding damage was ever recorded on eggplant. The experiment was ended when the eggplants started to senesce or were severely damaged by whiteflies and spider mites. The results of this open-field experiment corroborate previous quarantine/laboratory host-specificity tests indicating that a host range expansion of G. boliviana to include eggplant is highly unlikely. Gratiana boliviana was approved for field release in May 2003 in the USA. To date, no non-target effects have been observed either on eggplant or native species of Solanum. (author) [Spanish] Una prueba de campo fue conducida para evaluar la especificidad del escarabajo suramericano defoliador Gratiana boliviana Spaeth para control biologico de Solanum viarum Dunal en los Estados Unidos. La prueba con berenjena se realizo en el campo experimental de la Universidad de Buenos Aires, Argentina, y una parcela control con S. viarum fue establecida a 40 km. Cien escarabajos adultos fueron liberados en cada parcela al inicio del experimento durante la fase vegetativa, y cuarenta escarabajos adicionales fueron liberados en la parcela de berenjena durante la floracion. Todas las plantas en cada parcela fueron inspeccionadas dos veces a la semana y el numero de adultos, larvas, y posturas fueron registrados. Resultados indicaron un casi completo rechazo de la berenjena por G. boliviana. Ningun dano visible de defoliacion en la berenjena fue detectado. Las pruebas concluyeron cuando las plantas de berenjena alcazaron su madurez o fueron severamente danadas por mosca blanca y acaros. Resultados corroboran previas pruebas de especificidad en laboratorio/cuarentena que indican que la berenjena no es un hospedero de G. boliviana y que la posibilidad de llegar a ser una plaga de este cultivo es muy remota. Gratiana boliviana fue aprobado para ser liberado en el campo en mayo del 2003. Ningun dano ha sido observado hasta la fecha a plantas no blanco. (author)

Gandolfo, D.; McKay, F. [USDA-ARS South American Biological Control Laboratory, Hurlingham (Argentina); Medal, J.C.; Cuda, J.P. [University of Florida, Department of Entomology and Nematology, Gainesville, FL 32611 (United States)



La investigacion sobre la calidad de los programas para ninos de hasta dos anos de edad (Research on Quality in Infant-Toddler Programs). ERIC Digest.  

ERIC Educational Resources Information Center

|Concern about the quality of infant-toddler care programs has grown recently in response to two factors. The first is the need of employed parents for such care, and the second is research emphasizing the importance of brain development in the early years. This Spanish-language Digest introduces some of the many issues related to the quality of…

Honig, Alice Sterling


TVI: Um Modelo Numerico Para Estimativa Global DA Fitomassa DOS Cerrados Brasileiros (TVI: A Mathematical Model for Global Estimation of Brazilian Cerrado Phytomass).  

National Technical Information Service (NTIS)

The main objective is to discuss the Transformed Vegetation Index (TVI) potentialities to estimate the cerrado phytomass. The ground and remote sensing data (thematic mapper/LANDSAT-5) were gathered on three selected areas: Roncador Ecological Reserve (IB...

J. R. Dossantos



SISTEMÁTICA, MORFOLOGIA E FISIOLOGIA Descrição dos Estádios Imaturos de Acrogonia sp., Dilobopterus costalimai Young e Oncometopia facialis (Signoret) (Hemiptera: Cicadellidae: Cicadellinae)  

Microsoft Academic Search

The five nymphal instars of Acrogonia sp., Dilobopterus costalimai Young and Oncometopia facialis (Signoret) are described based on external morphology. Identification keys were elaborated, for recognition of nymphal instars and for distinction between males and females of third, fourth and fifth instars of these sharpshooter leafhoppers, which are important vectors of Xylella fastidiosa in citrus. A key for identification of




Microsoft Academic Search

This paper intend to present and discuss my research in teacher education. The rese- arch is developmented in the post gradute program of music in the Universidade Federal do Rio Grande Sul. My goal is to investigate how the graduate students in inservice pro- grams desenvelop their practice in teatching music while they articulate e mobilizing their teatcher's knowledges. The

Liane Hentschke


Linfoma primario cutáneo B de célula grande difuso tipo piernas según la nueva clasificación de la OMS-EORTC. dos casos  

Microsoft Academic Search

Primary cutaneous lymphomas are a heterogeneous group of lymphoproliferative disorders characterized by skin involvement with no evidence of systemic disease at the time of diagnosis. Their clinical behavior is generally indolent, and only occasionally is the development of extracutaneous disease observed. Since the 1980s, primary cutaneous B-cell lymphomas have been considered a specific group of lymphomas, differentiated from both T-cell

Buenaventura Hernández-Machín; Ricardo Fernández-Misa; Juan L. Alfonso; Carmen Marrero; Leopoldo Borrego



Electrotransformacao de 'Pseudomonas elodea' na Clonagem dos Genes Envolvidos na Sintese do Gelano (Electrotransformation of 'Pseudomonas elodea' in the Cloning of Genes Involved in Gellan Synthesis).  

National Technical Information Service (NTIS)

Gellan gum is a exopolysaccharide produced with a high yield by Pseudomonas elodea ATCC31461. The cloning and identification of the genes of the gellan biosynthetic path can allow the development of new polysaccharides with different chemical composition ...

G. A. A. Monteiro




Microsoft Academic Search

The physical activity is a form to more improve each time the quality of life of the people, then the gym is synonymous of guided physical activity, serching to after for its practioners a service where at can, in the possible measure do, to take care of its expectations, and this study it had the objective to discover the reasons

Cristina Lúcia; Fernandes A. Albuquerque


Estudio comparativo entre dos fuentes alimentarias aportadoras de ácidos grasos poliinsaturados n-3 y su efecto sobre el timo y el perfil lipídico de ratas  

Microsoft Academic Search

SUMMARY. Comparative study between two different sources of n-3 poliunsaturated fatty acids and it effect on thymus and lipid profile in rats. In the present paper we analyzed the effect caused by different recovery diets enriched with n-3 polyunsaturated fatty acids (PUFA n-3) on thymus and serum lipid pattern. Severe depleted weanling Wistar rats (D) were divided in three groups

Inés Fernandez; Anabel N. Pallaro; Nora H. Slobodianik



32 CFR Appendix C to Part 197 - Procedures for the Department of State (DoS) Foreign Relations of the United States (FRUS) Series  

Code of Federal Regulations, 2013 CFR

...Public Law No. 102-138. b. Request authorization from the CIA, NSC, and any other non-DoD Agency not signatory to the...classified. g. Submit to the respective Agency a list of CIA and NSC documents copied and released to the State...



DoD and DOS Need Better Procedures to Monitor and Expend DoD Funds for the Afghan National Police Training Program.  

National Technical Information Service (NTIS)

We conducted this audit in response to a requirement in Public Law 111-383, 'Ike Skelton National Defense Authorization Act for Fiscal Year 2011' (the FY 2011 Act), January 7, 2011. The FY 2011 Act required that the DoD OIG, in consultation with the Depar...



Ressonancia paramagnetica eletronica dos radicais livres induzidos por raios-X em pireno. (Electronic Paramagnetic Resonance (EPR) of free radicals induced by X-rays in pyrene).  

National Technical Information Service (NTIS)

Pyrene single crystals C(sub 16)H(sub 10), irradiated by X-rays, at room temperature, were studied by EPR technique, to determine free radicals formed by radiation. The angular dependence of EPR spectra was explained by the presence of two kinds of radica...

C. S. Moya Partiti



Scavenger scattering at two contemporary open air sites in Hungary Dispersión de carroñeros en dos yacimientos contemporáneos al aire libre en Hungría  

Microsoft Academic Search

A major cause of taphonomic loss is bone destruction by scavengers. Having monitored nine sheep bone scatters and two modern sheep carcasses near a farmstead and in a nearby forest clearing, it was hypothesized that the proximity of the settlement influenced multiple non-human bone modificator activities. This observation was tested by an experiment in which the rate of transport was



Estudo do nível de desenvolvimento da coordenação motora da população escolar (6 a 10 anos de idade) da Região Autónoma dos Açores  

Microsoft Academic Search

Motor coordination level of school aged children (6-10 years) of the Azores Islands The purposes of this investigation were: (1) to characterize the develop- mental state of motor coordination in primary school children; (2) to identify differences between children of both genders; and to (3) identify the presence of insufficient motor coordination. Sample comprises 3742 children of both genders with

V. P. Lopes; R. G. Silva; A. Seabra; F. P. Morais


Nortriptyline blood levels and clinical outcome: meta- analysis of published studies Níveis sangüíneos de nortriptilina e resposta clínica: metanálise dos estudos publicados  

Microsoft Academic Search

Introduction: An optimum range has been suggested for nortriptyline blood levels, above or below which patients respond poorly or do not respond at all to treatment. Methods: A meta-analysis of published studies was performed to verify the existence of an optimal blood concentration range or therapeutic window in nortriptyline-treated depression patients. A MEDLINE search through the years 1970-1999 was carried

Mônica G Ribeiro; Eduardo LA Pereira; Rogério Santos-Jesus; Eduardo P Sena; Kátia Petribú; Irismar R Oliveira


FORMAÇÃO DOS PROFISSIONAIS DAS ÁREAS DE CIÊNCIAS AGRÁRIAS EM SEGURANÇA NO TRABALHO RURAL 1 Preparation of professionals in the area of agrarian sciences regarding safety in rural work  

Microsoft Academic Search

The present paper had the objective of checking if the professional who will be engaged in the job market had received proper orientation and training to act in rural working safety, to establish relations between professional orientation and the information which will be given to rural growers. As research instrument, a questionnaire was used and applied to 209 growers and

Adilson Luiz Seifert; Débora Cristina Santiago


Influence of Conduction States on the Electronic Properties of Doped Semiconductors Influencia DOS Estados de Conducao Sobre as Propriedades Eletronicas de Semicondutores Dopados.  

National Technical Information Service (NTIS)

A model for the calculation of electronic properties of doped semiconductors, that considers the presence of the conduction band of the host material, is proposed. The model is derived from the standard basis operator form of the extended Anderson model. ...

L. F. Perondi R. Kishore




Microsoft Academic Search

Although Brazil is the largest sugar cane producer in the world its growing culture is still expanding due to the increasing de mand for biofuels. Such demand had led to a continuous growth of the planted cane area especially in the northeast region of the state of São Paulo. The aim of this work is to evaluate the growth of

Tânia Regina; Inácio Rodrigues; Archimedes Perez Filho


Estudo Sobre a Vegetacao Aquatica e Marginal Relacionada com a Vida dos Peixes (Study on Aquatic and River Margins Vegetation Related to Fish Life).  

National Technical Information Service (NTIS)

This study is part of the Ichthyology Research Project of the Araguaia-Tocantis region. The objective was to identify the aquatic and river margins species which are directly or indirectly related to the fish life, specifically as a source of food for the...

J. E. de Paula



Análise dos Foraminíferos Bentônicos de Dois Testemunhos na Região Nordeste da Baía de Guanabara Benthic Foraminifera Analysis in Two Cores from the Northeastern Area of Guanabara Bay  

Microsoft Academic Search

Guanabara bay receives a large amount of industrial and domestic sewage, which contributes for its environmental degradation. For monitoring those environmental changes, two cores from the northeastern area of the bay were analized. They were subsampled in centimeter intervals and the laboratory treatment followed specific methodology for foramini - fera. Foraminifera are much sensitive microorganisms as to environmental changes as

Raquel Batista; Medeiros da Fonseca; Kelly Cristine; Costa de Abreu


O EFEITO DO TREINO DA VISÃO PERIFÉRICA NA ZONA DOS GOLS DO FUTSAL -TREINO DA VISÃO PERIFÉRICA The effect of the peripheral vision training of futsal goal zone  

Microsoft Academic Search

Visual perception is important for the futsal player to practice the actions of the match with good skill. The peripheral vision is important for the attack, because the sportsman has more chances of goals. The objective of the study was to determine the effect of the peripheral vision training of futsal goal zone. Ten young futsal players, with an average

Nelson Kautzner; Marques Junior; Vernon Furtado da Silva


Análisis de dos poblaciones de gallinas criollas (Gallus domesticus) utilizando RAPDs como marcadores moleculares An analysis of two native poultry populations (Gallus domesticus) using RAPD's as molecular markers  

Microsoft Academic Search

México has a great variety of native poultry but knowledge about its diversity is minimal. In this study, twenty individuals belonging to two populations of native hens (Gallus domesticus) were analyzed. They were chosen by egg production, through polymorphism identification generated by DNA random amplification (RAPD's). Amplification generated products show different sizes between 0.2 to 1.1 kb. Polymorphism was detected

Irma Morelia Soto Huipe; Guadalupe Zavala Páramoa; Horacio Cano Camacho; Joel E. López Meza



Microsoft Academic Search

The physical exercise has demonstrated to be a preventive factor for the development of chronic- degenerative diseases. The continuous aerobic physical exercise decreases the insulin resistance and the atherogenic lipid profile; however, the intermittent aerobic exercise has been less studied in relation to its effects on lipid metabolism. The metabolic response to both kinds of exercise depends on the intensity,

Rosa Patricia Hernández-Torres; Arnulfo Ramos-Jiménez; Eduardo Gómez-Gómez; Ma de Jesús Muñoz-Daw; Patricia Victoria Torres-Durán; Dieter Mascher; Carlos Posadas-Romero; Marco Antonio Juárez-Oropeza



A Educacao dos Portadores de Necessidades Especiais no Brasil no Periodo de 1910 a 1949 (Education of Those with Special Needs in Brazil from 1920 to 1949).  

ERIC Educational Resources Information Center

|Examines education given to those with special needs in Brazil from 1910-1949. Shows the dichotomy of meanings in which the education of special needs persons during that period, besides being marked by concepts related to the exclusion paradigm, already indicated signs of respect for diversity and civil rights. (BT)|

Marques, Carlos Alberto; Santiago, Mylene Cristina; de Moura, Simone Moreira




Microsoft Academic Search

EFFICIENCY OF THE PHYSIOLOGIC INSECTICIDES MIMIC 240 SC (TEBUFENOZIDE) AND INTREPID 240 SC (METHOXIFENOZIDE) IN THE CONTROL OF THE ORIENTAL MOTH Grapholita molesta (BUSCK, 1916) (LEPIDOPTERA: TORTRICIDAE) IN THE CULTURE OF THE PEAR. Seeking the control of the oriental moth, Grapholita molesta, in the culture of the pear with physiologic insecticides, an experiment was done in the municipal district of

Alci E. LOECK; Mauro S. GARCIA


A capacidade de recuperação dos preços das ações das empresas de real estate cotadas na Bovespa The share prices recovery capacity of real estate companies in Bovespa  

Microsoft Academic Search

Due to the real estate sector positive outlook between 2005 and 2007, the IPOs of real estate companies was looked as a good investment opportunity and all the offers placed in Bovespa was absorbed by the market in the volume and prices offered in IPOs. This attractiveness was a result of valuations produced by an optimistic and speculative view. What

João da Rocha; Carolina Andrea; Garisto Gregório


Evaluacion Financiera de dos sistemas de riego, goteo y gravedad en el cultivo de caña de azucar en Zapotiltic, Jalisco, Mexico  

Microsoft Academic Search

Faced with the imminent opening up of the trade in México in 2008, cultivation sugar cane (Sacchrum spp.) It has a strong competitive pressure from other producing countries that are operating with cost and low prices. Hence the need to seek production alternatives that could improve the profitability and competitiveness of this crop. For this propose was raised in this

Guadalupe Torres Sanchez; Victor Hugo Prado Vazquez; Ma. Patricia Rivera Espinoza



Utilizacao dos ensaios de raios-X e fluoroscopia na industria de armamento e municao. (Use of X-ray essay and fluoroscopy in the armament industry).  

National Technical Information Service (NTIS)

Of the nondestructive testing the process of test by radiography has a special place. With view to great variety of problems of essays in the armament industry, the X-Ray radiography has excellent possibilities of testing, that not possible, for example, ...

G. Bohnsack R. Schimidt



EFICIÊNCIA PRODUTIVA DE EMPRESAS DA INDÚSTRIA DE ALIMENTOS NO BRASIL Grupo de Pesquisa: Estrutura, Evolução e Dinâmica dos Sistemas Agroalimentares e Cadeias Agroindustriais  

Microsoft Academic Search

Resumo: A indústria de alimentos no Brasil é um setor de g rande importância para a economia brasileira com poucos estudos publicados quanto ao seu desempenho operacional. Este trabalho avalia a eficiência relativa (técnica e de escala) de uma amostra de empresas de diferentes segmentos desta indústria, utilizando-se para tanto o Método DEA. Os segmentos analisados foram: Conglomerados Alimentícios; Óleos

Apresentação Oral-Estrutura; OSCAR TUPY


Proceedings of the 6th. National Meeting of Reactor Physics and Thermohydraulic Held at San Jose dos Compos, Brazil on 3 December 1986.  

National Technical Information Service (NTIS)

The proceedings of the 6. National Meeting of Reactor Physics and Thermohydraulic - 6. ENFIR - allow to evaluate the present status of development in reactor physics and thermohydraulic fields. The mathematical models and methods for calculating neutronic...



Analise modal dos efeitos espaciais sobre os transientes de potencia num reator nuclear. (Modal analysis of spatial effects on transients in nuclear power reactor).  

National Technical Information Service (NTIS)

The solution of the linearized space dependant reactor kinetics equations with fuel and moderator temperature coefficient feed backs are obtained by modal analysis. The heat transfer from fuel to moderator is explicitly considered through the heat balance...

O. Agueda



Una controversia historica al servicio de una situacion de aprendizaje: una reconstruccion didactica basada en Dialogo sobre los dos maximos sistemas del mundo de Galileo  

Microsoft Academic Search

It is difficult for the common sense to admit that an object dropped from the top of the mast of a ship moving at a constant velocity falls down at the bottom of the mast because it keeps inside the horizontal movement of the ship. This difficulty is similar to the one faced by early scientists from the pre-classical science

Cecile de Hosson



Una controversia historica al servicio de una situacion de aprendizaje: una reconstruccion didactica basada en Dialogo sobre los dos maximos sistemas del mundo de Galileo  

Microsoft Academic Search

It is difficult for the common sense to admit that an object dropped from the\\u000atop of the mast of a ship moving at a constant velocity falls down at the\\u000abottom of the mast because it keeps inside the horizontal movement of the ship.\\u000aThis difficulty is similar to the one faced by early scientists from the\\u000apre-classical science

Cecile de Hosson




Microsoft Academic Search

In this article, we analyze the main non-wood fores t products from Brazilian savanna. We studied the behavior and the growth rates of production and prices of almond of babaçu, oil of copaiba, fiber of buriti, leaf of jaborandi, bark of barbatimão, bark of angico, fruit of mangaba, almonds of pequi, fro m 1982 to 2005. All the products exhibited

Sandra Regina Afonso; Humberto Ângelo



O papel do Principal Complexo de Histocompatibilidade (MHC) na imunobiologia dos aromas The role of the Major Histocompatibility Complex in the Immunobiology of Self-Aromas  

Microsoft Academic Search

Os autores apresentam uma revisão sobre os mecanismos imunobiológicos no processo da olfação, reunindo informações atuais e relevantes sobre os odores liberados pelo organismo de vertebrados e sua associação com o sistema imune. Algumas teorias sobre características estruturais de odores ou aromas têm sido propostas, sendo as mais importantes: a teoria estereoquímica e da vibração do odor. Diversas técnicas baseadas

Mariana Cavalheiro Magri; Adele Caterino-de-Araujo



Microsoft Academic Search

Effect of chemical and hand defoliation on the phenology and yield of two peach varieties (Prunus persica) in Costa Rica. A trial was conducted to detennine the effect of defoliation on the blooming and fruit yield of peach trees, 'Big Boston' and 'Hall's Yellow' varieties, at the Fabio Baudrit Experimental Station in Fraijanes, Alajuela, Costa Rica. The treatments consisted of

Ileana Sanchez; Claudio Javier Gamboa; Guillermo Sancho; Primo Luis Chavarrta


Avaliação dos Efeitos de uma Modalidade de Treinamento de Habilidades Sociais para Crianças Evaluation of the Effects of the Social Skills Training Method to Children  

Microsoft Academic Search

This article describes the effects of a social skills training on prosocial behavior, self concept, and peers accep- tance, in three children: P.1, female, 9 years old, aggressive behavior and difficulty of learning; P.2, male, 7 years old, aggressive behavior; P.3, male, 13 years old, extremely shy, difficulty in learning, The program was cognitive behavioral based and was conducted in

Elaine Sabino Gonçalves; Sheila Giardini Murta


Efeitos dos Exercícios Físicos Sobre o Edema Inflamatório Agudo em Ratos Wistar Effects of Physical Exercise on the Acute Inflammatory Edema in Wistar Rats  

Microsoft Academic Search

Physical exercises have been associated with important and varied benefits to health, as those related to the specific and non-specific immune function, stressing the inflammatory process in the latter. However, depending on their type, intensity, frequency and duration, exercises can also cause certain harm to the organism. Actually, previous research has demonstrated that the hypernociception of inflammatory origin in rats

Ademir da Costa Lana; Célia Aparecida Paulino; Ivair Donizeti Gonçalves


Avaliacao dos sistemas de distribuicao de energia eletrica: periodo 1984/89. (Evaluation of electric power distribution systems: period 1984/89).  

National Technical Information Service (NTIS)

The historical evolution of electric power distribution systems in Brazil, during 1984 to 1989 is described, showing the consumer market with the physical expansion of Distribution Networks and the results of quality from the services made by the companie...

W. A. Britto Filho V. G. Pinto



Observations of the F-region ionospheric irregularities in the South American sector during the October 2003 "Halloween Storms"  

NASA Astrophysics Data System (ADS)

The response of the ionospheric F-region in the South American sector during the super geomagnetic storms on 29 and 30 October 2003 is studied in the present investigation. In this paper, we present ionospheric sounding observations during the period 29-31 October 2003 obtained at Palmas (a near equatorial location) and Sao Jose dos Campos (a location under the southern crest of the equatorial ionospheric anomaly), Brazil, along with observations during the period 27-31 October 2003 from a chain of GPS stations covering the South American sector from Imperatriz, Brazil, to Rio Grande, Argentina. Also, complementary observations that include sequences of all-sky images of the OI 777.4 and 630.0 nm emissions observed at El Leoncito, Argentina, on the nights of 28-29 (geomagnetically quiet night) and 29-30 (geomagnetically disturbed night) October 2003, and ion densities observed in the South American sector by the DMSP F13, F14 and F15 satellites orbiting at about 800 km on 29 and 30 October 2003 are presented. In addition, global TEC maps derived from GPS observations collected from the global GPS network of International GPS Service (IGS) are presented, showing widespread and drastic TEC changes during the different phases of the geomagnetic disturbances. The observations indicate that the equatorial ionospheric irregularities or plasma bubbles extend to the Argentinean station Rawson (geom. Lat. 33.1° S) and map at the magnetic equator at an altitude of about 2500 km.

Sahai, Y.; Becker-Guedes, F.; Fagundes, P. R.; de Abreu, A. J.; de Jesus, R.; Pillat, V. G.; Abalde, J. R.; Martinis, C. R.; Brunini, C.; Gende, M.; Huang, C.-S.; Pi, X.; Lima, W. L. C.; Bittencourt, J. A.; Otsuka, Y.



Initial results of the Global Thermospheric Mapping Study (GTMS)  

NASA Astrophysics Data System (ADS)

The Global Thermospheric Mapping Study (GTMS) is a multi-technique experimental study of the thermosphere designed to map simultaneously its spatial and temporal morphology with a thoroughness and diversity of measurement techniques heretofore unachieved. The GTMS is designed around the Incoherent Scatter Radar Chain in the western hemisphere. The European incoherent scatter radars and the worldwide communities of Fabry-Perot interferometers, meteor wind radars, partial reflection drifts radars, MST radars, and satellite probes are included to extend the spatial coverage and types of measurements available. Theoretical and modeling support in the areas of thermospheric and ionospheric structure, tides, and electric fields are included to aid in program planning and data interpretation. Solar activity was low on the three observation days (F10.7 = 97, 98, 96) and magnetic conditions were unsettled to active (A = 10, 12, 20). All six incoherent scatter radar facilities collected data. Each collected F region data day and night while Saint Santin and Millstone Hill additionally collected E region data during daylight hours. Initial results from Sondrestrom and Millstone Hill are presented. Good quality Fabry Perot data were collected at Fritz Peak and San Jose dos Campos. Weather conditions produced poor results at Arequipa and Arecibo. Initial results from Fritz Peak are presented. Mesosphere/lower-thermosphere observations were conducted under the ATMAP organization. The magnetometer chains also were operational during this campaign. Initial thermospheric general circulation model predictions were made for assumed solar-geophysical conditions, and selected results are presented.

Oliver, W. L.; Salah, J. E.; Musgrove, R. G.; Holt, J. M.; Wickwar, V. B.; Hernandez, G. J.; Roble, R. G.



Day-to-day variability in the development of plasma bubbles associated with geomagnetic disturbances  

NASA Astrophysics Data System (ADS)

The development of equatorial ionospheric irregularities into large-scale ionospheric plasma bubbles continues to be an active area for scientific investigations. In this paper, we present simultaneous OI 630.0-nm emission all-sky imaging observations carried out at the Astrophysics National Laboratory (LNA), Brazopolis (22.5°S, 45.6°W, altitude 1860 m) and ionospheric sounding observations carried out at Palmas (10.2°S, 48.2°W located close to the magnetic equator) and Sao Jose dos Campos (23.2°S, 45.9°W located under the southern crest of equatorial ionospheric anomaly, close to Brazopolis), Brazil, to study the day-to-day variability in the development of ionospheric plasma bubbles during both geomagnetically disturbed and quiet periods in September-October 2002. Also, we present simultaneous complementary phase fluctuation (ROT) data obtained from the global position system (GPS) meridional chain operated by the Brazilian Institute of Geography and Statistic (IBGE). On the three nights studied in the present investigation (one geomagnetically quiet and two geomagnetically disturbed), it has been observed that the geomagnetic disturbances, during this spring equinox period, have a strong effect on the generation and development of ionospheric plasma bubbles.

Abalde, J. R.; Sahai, Y.; Fagundes, P. R.; Becker-Guedes, F.; Bittencourt, J. A.; Pillat, V. G.; Lima, W. L. C.; Candido, C. M. N.; de Freitas, T. F.



VIII Olimpíada Brasileira de Astronomia e Astronáutica  

NASA Astrophysics Data System (ADS)

Neste trabalho apresentamos as motivações pelas quais organizamos, em conjunto, pela primeira vez, a Olimpíada Brasileira de Astronomia incluindo a Astronáutica, em colaboração com a Agência Espacial Brasileira. Esta ampliação contribuiu para atrair ainda mais alunos, professores, escolas e patrocinadores para participarem desta Olimpíada. Em 2005 participaram da VIII Olimpíada Brasileira de Astronomia e Astronáutica (VIII OBA) 187.726 alunos distribuídos por 3.229 escolas, pertencentes a todos os estados brasileiros, incluindo o Distrito Federal. O crescimento em número de alunos participantes foi 52,4% maior do que em 2004. Em abril de 2005 organizamos, em Itapecerica da Serra, SP, um curso para os 50 alunos previamente selecionados e participantes da VII OBA e ao final selecionamos, dentre eles, uma equipe de 5 alunos, os quais representaram o Brasil na X Olimpíada Internacional de Astronomia, na China, em outubro de 2005. Ganhamos, pela primeira vez, uma medalha de ouro naquele evento. Em Agosto de 2005, organizamos a VIII Escola de Agosto para 50 alunos e respectivos professores, em Águas de Lindóia, SP, juntamente com a XXXI reunião anual da Sociedade Astronômica Brasileira (SAB). Em novembro de 2005 realizamos a I Jornada Espacial, em São José dos Campos, com 22 alunos e 22 professores selecionados dentre os participantes que melhores resultados obtiveram nas questões de Astronáutica da VIII OBA. Neste trabalho detalhamos os resultados da VIII OBA bem como as ações subseqüentes.

Garcia Canalle, João Batista; Villas da Rocha, Jaime Fernando; Wuensche de Souza, Carlos Alexandre; Pereira Ortiz, Roberto; Aguilera, Nuricel Villalonga; Padilha, Maria De Fátima Catta Preta; Pessoa Filho, José Bezerra; Soares Rodrigues, Ivette Maria



The karyotype of three Brazilian Terrarana frogs (Amphibia, Anura) with evidence of a new Barycholos species  

PubMed Central

A recent substantial rearrangement of the 882 described eleutherodactyline frog species has considerably improved the understanding of their systematics. Nevertheless, many taxonomic aspects of the South American eleutherodactyline species remain unknown and require further investigation using morphological, cytogenetic and molecular approaches. In this work, the karyotypes of the Brazilian species Ischnocnema juipoca (Atibaia and Campos do Jordão, SP), Barycholos cf. ternetzi (Uberlândia, MG, and Porto Nacional, TO), and Pristimantis crepitans (Chapada dos Guimarães and São Vicente, MT) were analyzed using Giemsa staining, Ag-NOR labeling, and C-banding techniques. All individuals had a diploid number of 22 chromosomes, but the Fundamental Numbers were different among species. The herein described low chromosome number of Pristimantis crepitans is unique within this genus, suggesting that cytogenetically this species is not closely related either to its congeneric species or to Ischnocnema. In addition, karyotype differences, mainly in the NOR position, clearly distinguished the two Barycholos populations, besides indicating the existence of a so far undescribed species in this genus. A taxonomic review could clarify the systematic position of P. crepitans and verify the hypothetic new Barycholos species.



East-west plasma bubble irregularity motion determined from spaced VHF polarimeters: Velocity shear in the zonal F-region bulk plasma motion  

NASA Astrophysics Data System (ADS)

VHF electronic polarimeters were used to monitor Faraday rotation angle and amplitude of geostationary satellite (GOES-3) beacon signals, simultaneously at two stations, Cachoeira Paulista and Sao Jose dos Campos, separated by 110km exactly in the magnetic East-West direction in Brazil. The analysis of the data for a few months in 1981-82 period shows TEC fluctuations correlated with range type spread F events in the local ionograms and amplitude scintillation in the satellite beacon signals, thereby identifying themselves as eastward propagating plasma bubbles, and structures within them, in the equatorial ionosphere. The nighttime variation pattern in these velocities is in excellent agreement with those of the eastward bulk plasma motion measured by Jicamarca radar, the irregularity patch movement obtained from closely spaced antennas over Natal, the eastward airglow patch velocities determined from all-sky 6300 A images over Ascension Island, and the thermospheric zonal winds measured by Fabry-Perot interferometer over Kwajalein Atoll. There exist, however, significant differences in the values of the eastward velocities for these different cases.

Abdu, M. A.; Kantor, I. J.; Batista, I. S.; Depaula, E. R.



Micronucleus test and observation of nuclear alterations in erythrocytes of Nile tilapia exposed to waters affected by refinery effluent.  


Micronuclei and nuclear alterations tests were performed on erythrocytes of Oreochromis niloticus (Perciformes, Cichlidae) in order to evaluate the water quality from Paraíba do Sul river, in an area affected by effluents from an oil shale processing plant, located in the city of São José dos Campos, Brazil-SP. Water samples were collected on 2004 May and August (dry season) and on 2004 November and 2005 January (rain season), in three distinct sites, comprising 12 samples. It was possible to detect substances of clastogenic and/or aneugenic potential, as well as cytotoxic substances, chiefly at the point corresponding to the drainage of oil shale plant wastes along the river. The highest incidence of micronuclei and nuclear alterations was detected during May and August, whereas the results obtained in November and January were insignificant. This work shows that the effluent treatment provided by the oil shale plant was not fully efficient to minimize the effect of cytotoxic and mutagenic substances in the test organism surveyed. PMID:16678473

da Silva Souza, Tatiana; Fontanetti, Carmem S



Atypical nighttime spread-F structure observed near the southern crest of the ionospheric equatorial ionization anomaly  

NASA Astrophysics Data System (ADS)

An atypical nighttime spread-F structure is observed at or above the F-layer, near the crest of the ionospheric equatorial ionization anomaly region (EIA). This ionospheric atypical spread-F phenomenon was observed using two closed spaced (~115 km) ionospheric soundings stations located in Sao Jose dos Campos (23.21 S, 45.97 W) and Cachoeira Paulista (22.70 S, 45.01W), Brazil, in a low-latitude station (near the southern crest of the EIA region), during nighttime, low solar activity, and quiet geomagnetic conditions. This structure, in the initial phase, appears as a faint spread-F trace above or at the F2-layer peak height. After a few minutes, it develops into a strong spread-F trace, and afterwards, it moves to altitudes below to the F2-layer peak heights. Finally, the atypical nighttime F-layer trace structure may remain for a while between the F-layer bottom side and peak height or can move to an altitude above the F-layer peak height, and then it disappears. In order to have a comprehensive view of the ionospheric environment characterizing the phenomenon under study, complementary GPS data were used to investigate the ionosphere environment conditions, during both events. The 6 GPS stations used in this study are distributed from near the equatorial region to low latitudes.

Fagundes, Paulo Roberto



Analysis of amplitude deep fades observed by a static GPS scintillation monitor located near the Equatorial Ionization Anomaly peak during high solar flux conditions  

NASA Astrophysics Data System (ADS)

Amplitude deep fades caused by ionospheric scintillation can break the carrier loop operation of a GPS receiver. As a consequence, the navigation availability and/or accuracy in the position determination can be reduced. In this work we analyzed 32 days (Dec. 14 2000 - Jan. 14 2001) of measurements of the GPS L1 (1.575 GHz) amplitude signal in order to investigate the occurrences of scintillation and deep fading events caused by low-latitude ionospheric irregularities. The observations were made during the last solar maximum by a GPS-based scintillation monitor (ScintMon) deployed in Sao Jose dos Campos, Brazil, located near the peak of the Equatorial Ionization Anomaly. The large number of observations provides the opportunity to investigate different scintillation scenarios, including extremely intense scintillation cases. We characterize the observed scintillation cases according to the amplitude scintillation index (S4) and the decorrelation time (tau0). The occurrence of amplitude deep fades is characterized by two parameters: fading depth and duration. The results of this analysis are presented and discussed. The implications of our results for GPS receiver performance are also discussed.

Paula, E. R.; Moraes, A. O.; Rodrigues, F. S.; Perrella, W.



Seasonal and solar cycle dependence of F3-layer near the southern crest of the equatorial ionospheric anomaly  

NASA Astrophysics Data System (ADS)

The occurrence of an additional F3-layer has been reported at Brazilian, Indian and Asian sectors by several investigators. In this paper, we report for the first time the seasonal variations of F3-layer carried out near the southern crest of the equatorial ionospheric anomaly (EIA) at São José dos Campos (23.2°S, 45.0°W; dip latitude 17.6°S - Brazil) as a function of solar cycle. The period from September 2000 to August 2001 is used as representative of high solar activity (HSA) and the period from January 2006 to December 2006 as representative of low solar activity (LSA). This investigation shows that during HSA there is a maximum occurrence of F3-layer during summer time and a minimum during winter time. However, during LSA, there is no seasonal variation in the F3-layer occurrence. Also, the frequency of occurrence of the F3-layer during HSA is 11 times more than during LSA.

Fagundes, P. R.; Klausner, V.; Bittencourt, J. A.; Sahai, Y.; Abalde, J. R.



Dependence of the F-region peak electron density (foF2) on solar activity observed in the equatorial ionospheric anomaly region in the Brazilian sector  

NASA Astrophysics Data System (ADS)

The long-term (solar cycle) changes in the Sun and how it affects the ionospheric F-region observed at São José dos Campos (23.2° S, 45.9° W), Brazil, a location under the southern crest of the equatorial ionospheric anomaly, have been investigated in this paper. The dependence of the F-region peak electron density (foF2) on solar activity during the descending phase of the 23rd solar cycle for the periods of high, medium, and low solar activity has been studied. The ionospheric F-region peak electron densities observed during high and medium solar activity show seasonal variations with maxima close to the equinox periods, whereas during the low solar activity the maxima during the equinox periods is absent. However, during the low solar activity only change observed is a large decrease from summer to winter months. We have further investigated changes in the different ionospheric F-region parameters (minimum virtual height of the F-region (h'F), virtual height at 0.834foF2 (hpF2), and foF2) during summer to winter months in low solar activity periods, 2006-2007 and 2007-2008. Large changes in the two ionospheric parameters (hpF2 and foF2) are observed during summer to winter months in the two low solar activity periods investigated.

Cardoso, F. A.; Sahai, Y.; Guarnieri, F. L.; Fagundes, P. R.; Pillat, V. G.; da Silva, J. V. P. R.



Effects observed in the equatorial and low latitude ionospheric F-region in the Brazilian sector during low solar activity geomagnetic storms and comparison with the COSMIC measurements  

NASA Astrophysics Data System (ADS)

The main objective of the present investigation has been to compare the ionospheric parameters (NmF2 and hmF2) observed by two ground-based ionospheric sounders (one at PALMAS- located near the magnetic equator and the other at Sao Jose dos Campos-located in the low-latitude region) in the Brazilian sector with that by the satellite FORMOSAT-3/COSMIC radio occultation (RO) measurements during two geomagnetic storms which occurred in December 2006 and July 2009. It should be pointed out that in spite of increasing the latitude (to 10°) and longitude (to 20°) around the stations; we had very few common observations. It has been observed that both the peak electron density (NmF2) and peak height (hmF2) observed by two different techniques (space-borne COSMIC and ground-based ionosondes) during both the geomagnetic storm events compares fairly well (with high correlation coefficients) at the two stations in the Brazilian sector. It should be pointed out that due to equatorial spread F (ESF) in the first storm (December 2006) and no-reflections from the ionosphere during nighttime in the second storm (July 2009), we had virtually daytime data from the two ionosondes.

Sahai, Y.; de Jesus, R.; Fagundes, P. R.; Selhorst, C. L.; de Abreu, A. J.; Tulasi Ram, S.; Aragon-Angel, A.; Pillat, V. G.; Abalde, J. R.; Lima, W. L. C.; Bittencourt, J. A.