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1

Una aplicacion de conjuntos rugosos difusos en seleccion de caracteristicas para la mejora de metodos de  

E-print Network

empleado. De esta manera, es posible mejorar los resultados de muchas aplicaciones de miner´ia de datos´on de Caracter´isticas, Clasificador del Vecino M´as Cercano 1. Introducci´on La reducci´on de datos es un proceso que puede aplicarse en situaciones en las que haya que analizar una gran cantidad de datos

Granada, Universidad de

2

N. meningitidis 1681 is a member of the FinO family of RNA chaperones.  

SciTech Connect

The conjugative transfer of F-like plasmids between bacteria is regulated by the plasmid-encoded RNA chaperone, FinO, which facilitates sense - antisense RNA interactions to regulate plasmid gene expression. FinO was thought to adopt a unique structure, however many putative homologs have been identified in microbial genomes and are considered members of the FinO-conjugation-repressor superfamily. We were interested in determining whether other members were also able to bind RNA and promote duplex formation, suggesting that this motif does indeed identify a putative RNA chaperone. We determined the crystal structure of the N. meningitidis MC58 protein NMB1681. It revealed striking similarity to FinO, with a conserved fold and a large, positively charged surface that could function in RNA interactions. Using assays developed to study FinO-FinP sRNA interactions, NMB1681, like FinO, bound tightly to FinP RNA stem-loops with short 5-foot and 3-foot single-stranded tails but not to ssRNA. It also was able to catalyze strand exchange between an RNA duplex and a complementary single-strand, and facilitated duplexing between complementary RNA hairpins. Finally, NMB1681 was able to rescue a finO deficiency and repress F plasmid conjugation. This study strongly suggests that NMB1681 is a FinO-like RNA chaperone that likely regulates gene expression through RNA-based mechanisms in N. meningitidis.

Chaulk, S.; Lu, J.; Tan, K.; Arthur, D.; Edwards, R.; Frost, L.; Joachimiak, A.; Glover, J. (Biosciences Division); (Univ. of Alberta)

2010-11-01

3

Evaluating the silencing suppressor activity of proteins encoded by maize rayado fino virus  

Technology Transfer Automated Retrieval System (TEKTRAN)

Maize rayado fino virus (MRFV), the type member of the genus Marafivirus, family Tymoviridae, is transmitted in a persistent, circulative manner by leafhoppers of the genus Dalbulus. Symptoms of MRFV infection on leaves of its maize host are small chlorotic spots that coalesce into short stripes. T...

4

Extraction of resveratrol from the pomace of Palomino fino grapes by supercritical carbon dioxide  

Microsoft Academic Search

Resveratrol is a phenolic compound that is present in grapes and has significant benefits for human health. The development of methods to obtain concentrates of this compound is currently a major challenge in the food industry. In the work described here, resveratrol from grape seeds, stems, skin and pomace of the Palomino fino grape variety was extracted by supercritical carbon

L. Casas; C. Mantell; M. Rodríguez; E. J. Martínez de la Ossa; A. Roldán; I. De Ory; I. Caro; A. Blandino

2010-01-01

5

Maize rayado fino virus capsid proteins assemble into virus-like particles in Escherichia coli  

Technology Transfer Automated Retrieval System (TEKTRAN)

Maize rayado fino virus (MRFV; genus Marafivirus; family Tymoviridae) is a small spherical plant virus that contains two components: empty shells and complete virus particles (encapsidating the 6.3 kb genomic RNA). Virions are approximately 30 nm in diameter and composed of two serologically related...

6

Water relations, growth and yield of Fino lemon trees under regulated deficit irrigation  

Microsoft Academic Search

Fino lemon trees (Citrus limon L. Burm. fil.) on sour orange (Citrus aurantium L.), growing on a low water retention capacity soil, were submitted to three different irrigation treatments over four years: 100% ETc all year (T-0), 25% ETc all year except during the rapid fruit growth period when 100% ETc was applied (T-1) and 100% ETc all year, except

R. Domingo; M. C. Ruiz-Sfinchez; M. J. Stinchez-Blanco; A. Torrecillas

1996-01-01

7

Water relations of Fino lemon plants on two rootstocks under flooded conditions  

Microsoft Academic Search

Potted two-year-old Fino lemon plants (Citrus limon (L.) Burm. fil.) grafted on two different rootstocks: sour orange (C. aurantium) (SO), and C. macrophylla (CM) were submitted to two different treatments: non-flooded (control) and flooded for 8 days, under field conditions. Lemon\\/CM plants had lower plant plus soil resistance to water flow (R(p+s)) values for both treatments. The decrease in leaf

Ma Carmen Ruiz-Sánchez; Rafael Domingo; Donaldo Morales; Arturo Torrecillas

1996-01-01

8

Partial Characterization of Maize Rayado Fino Virus Isolates From Ecuador: Phylogenetic Analysis Supports A Central American Origin of the Virus  

Technology Transfer Automated Retrieval System (TEKTRAN)

Maize rayado fino virus (MRFV) infects maize and appears to be restricted to, yet widespread in, the Americas. MRFV was previously unreported from Ecuador. Maize plants exhibiting symptoms of MRFV infection were collected at the Santa Catalina experiment station in Quito, Ecuador. RT-PCR reactions ...

9

Vertical Structure of the Wind Speed Profile at the North Sea Offshore Measurement Platform FINO1  

NASA Astrophysics Data System (ADS)

The vertical wind speed profile in the lowest 100m of the marine atmospheric boundary layer has been characterized from data collected at the FINO1 offshore research platform in the German North Sea sector for 2005. Located in 30m of water, the platform has a dense vertical array of meteorological instrumentation to measure wind speed, air temperature, relative humidity, and atmospheric turbulence characteristics. Along measurements of the ocean temperature and surface waves, the platform is well-equipped to characterize wind properties in the near-surface boundary layer. Preliminary analysis reveals a high incidence of vertical wind speed profiles that deviate significantly from Monin-Obukhov similarity theory with wind speed inflections that suggest decoupled layers near the surface. The presentation shows how the properties of the vertical wind speed profile change mainly depending on the wind speed, wind direction, and time of year. The results are significant because there are few reports of inflections in the vertical wind speed profile over the ocean and there is an a priori assumption that the vertical wind speed profile varies smoothly according to similarity theory. There are possible consequences for the wind energy development in terms of understanding the forces acting on offshore wind turbines whose rotors sweep across heights 150-200m above the sea surface.

Kettle, A. J.

2013-12-01

10

Application of an elastic 2D tube-waveform tomography to estimate the shear modulus in the vicinity of the FINO3 offshore platform  

NASA Astrophysics Data System (ADS)

The FINO3 project is aimed at the construction of an offshore research platform in the north-sea, hosting research projects dealing with offshore wind energy topics. As part of FINO3 our sub-project deals with the development of new seismic acquisition and inversion concepts for offshore-building foundation soil analysis. We are focussed on the determination of seismic parameters and structural information of the building plot of the platform. Possible changes of the shear modulus of the sediments in the vicinity of the FINO3 monopile due to mechanic loads on the platform are estimated by a tube-waveform tomography. The tube-waves are excited by a hammer blow at the internal wall of the FINO3 monopile above the water line. The tube-waves are propagating through the water column and the sediments and are measured in situ by hydrophones at the external wall of the monopile. Homogenous long wavelength starting models for the waveform tomography are estimated using simple 2D finite difference models. Possible shear-wave velocity starting models range from 150-300 m/s. The resolution of the tube-waveform tomography is estimated by simple chequerboard and random media models. Additionally first results of the data application in the vicinity of the monopile are presented.

Köhn, D.; Wilken, D.; Rabbel, W.

2012-04-01

11

Inversor Resonante de Tres Elementos L-LC con Caracteristica Cortocircuitable para Aplicaciones de Calentamiento por Induccion  

NASA Astrophysics Data System (ADS)

Los generadores de calentamiento por induccion son puentes inversores con carga resonante, cuya mision es basicamente crear una corriente sinusoidal de gran amplitud sobre la "bobina de caldeo", que forma parte del tanque resonante. En el interior de esta bobina se introduce la pieza que se desea calentar. EI campo magnetico creado induce corrientes superficiales (corrientes de Foucault) sobre la pieza, que producen su calentamiento. Los tanques resonantes (tambien llamados osciladores) utilizados en la actualidad son el resonante serie y el resonante paralelo. Aunque ya desde hace algun tiempo se vienen construyendo generadores de alta potencia basados en estos dos osciladores, el exito nunca ha. sido completo en ninguno de los dos casos. Tal y como se explica en la introduccion de esta memoria, los puentes inversores utilizados deben operar sobre una carga inductiva (corriente retrasada) para evitar el fenomeno de la recuperacion inversa de sus diodos y la consiguiente ruptura de los transistores. De la restriccion topologica anterior se deduce que el generador paralelo debe conmutar a frecuencias inferiores a la resonancia, y el serie a frecuencias superiores. A esta restriccion topologica hay que unir otra que es exclusiva del calentamiento por induccion: La corriente por la bobina de caldeo debe ser sinusoidal. De no ser asi, resultaria imposible disponer toda la potencia de calentamiento sobre la pieza en el espesor requerido por la aplicacion. Como consecuencia, los inversores no pueden operar por debajo de la frecuencia de resonancia del oscilador, pues en ese caso se amplifican los armonicos de orden superior de la tension/corriente de entrada situados sobre la resonancia, con la consiguiente distorsion de la corriente de salida. La conjuncion de las dos restricciones anteriores obligan al inversor paralelo a funcionar a la frecuencia de resonancia del oscilador. Esto imposibilita un control por variacion de frecuencia, regulandose la potencia desde la seccion de entrada mediante un mayor o menor aporte de corriente al puente. Como consecuencia, la seccion de entrada del paralelo, ya de por si mas voluminosa que lao del serie por el uso de grandes componentes magneticos (bobinas de filtro o de "alisamiento"), result a tambien mas complicada y costosa debido a la necesidad de ser implementada mediante rectificador controlado. Ademas, la regulacion que ofrece el rectificador es pobre, dada su baja frecuencia de conmutacion. En cambio, el circuito serie puede funcionar por encima de la resonancia manteniendo una secuencia de conmutacion sin riesgos de recuperacion inversa y con una corriente de salida practicamente sinusoidal, lo que permite un control de la potencia por variacion de frecuencia. Puesto que la tarea de regulacion se realiza desde el puente inversor, la regulacion resulta mucho mas eficaz y la seccion de entrada se puede implementar mediante un simple rectificador no controlado y un condensador de filtro. (Abstract shortened by UMI.).

Espi Huerta, Jose Miguel

12

Mutations in the alpha-helical region of the amino terminus of the Maize rayado fino virus capsid protein and CP:RNA ratios affect virus-like particle encapsidation of RNAs.  

PubMed

Viral-based nanoplatforms rely on balancing the delicate array of virus properties to optimally achieve encapsidation of foreign materials with various potential objectives. We investigated the use of Maize rayado fino virus (MRFV)-virus-like particles (VLPs) as a multifunctional nanoplatform and their potential application as protein cages. MRFV-VLPs are composed of two serologically related, carboxy co-terminal coat proteins (CP1 and CP2) which are capable of self-assembling in Nicotiana benthamiana plants into 30nm particles with T=3 symmetry. The N-terminus of CP1 was targeted for genetic modification to exploit the driving forces for VLP assembly, packaging and retention of RNA in vivo and in vitro. The N-terminus of MRFV-CP1 contains a peptide sequence of 37 amino acids which has been predicted to have an alpha-helical structure, is rich in hydrophobic amino acids, facilitates CP-RNA interactions, and is not required for self-assembly. Amino acid substitutions were introduced in the 37 amino acid N-terminus by site-directed mutagenesis and the mutant VLPs produced in plants by a Potato virus X (PVX)-based vector were tested for particle stability and RNA encapsidation. All mutant CPs resulted in production of VLPs which encapsidated non-viral RNAs, including PVX genomic and subgenomic (sg) RNAs, 18S rRNA and cellular and viral mRNAs. In addition, MRFV-VLPs encapsidated GFP mRNA when was expressed in plant cells from the pGD vector. These results suggest that RNA packaging in MRFV-VLPs is predominantly driven by electrostatic interactions between the N-terminal 37 amino acid extension of CP1 and RNA, and that the overall species concentration of RNA in the cellular pool may determine the abundance and species of the RNAs packaged into the VLPs. Furthermore, RNA encapsidation is not required for VLPs stability, VLPs formed from MRFV-CP1 were stable at temperatures up to 70°C, and can be disassembled into CP monomers, which can then reassemble in vitro into complete VLPs either in the absence or presence of RNAs. PMID:25102332

Natilla, Angela; Murphy, Charles; Hammond, Rosemarie W

2015-01-22

13

Caracteristicas de discos debris en Enanas Blancas  

NASA Astrophysics Data System (ADS)

In the late '80s an infrared excess (IR) around a white dwarf star (WD) was detected; which was attributed to the presence of a dusty circumstellar disk. In recent years; thanks to Spitzer; the number of WDs with excesses has increased significantly. In this contribution we present the modeling of the spectral energy distributions (SEDs) of a sample of 29 WDs having IR excesses. This model allows us to derive the mass and the internal and external radii of the dusty disk; for a given chemical composition. The location of this ring is compared with the Habitability Zone (HZ) of each WD in the sample. In addition; the dimensions and masses of these rings are compared with those around main sequence stars; commonly known in the literature as debris disks. FULL TEXT IN SPANISH

Saker, L.; Chavero, C.; Gómez, M. N.

14

Instituto Nacional de Pesquisas Espaciais Av. dos Astronautas, 1758 So Jos dos Campos, SP.  

E-print Network

Instituto Nacional de Pesquisas Espaciais Av. dos Astronautas, 1758 ­ São José dos Campos, SP? #12;8) Num experimento de espalhamento de partículas de altas energias, verifica- se que as partículas

15

DOS: the discrete-ordinates system. [LMFBR  

SciTech Connect

The Discrete Ordinates System determines the flux of neutrons or photons due either to fixed sources specified by the user or to sources generated by particle interaction with the problem materials. It also determines numerous secondary results which depend upon flux. Criticality searches can be performed. Numerous input, output, and file manipulation facilities are provided. The DOS driver program reads the problem specification from an input file and calls various program modules into execution as specified by the input file.

Rhoades, W. A.; Emmett, M. B.

1982-09-01

16

NOVAS REGRAS CONSTRUO REABILITAO URBANAAMEAASEGURANA DOS MORADORES  

E-print Network

NOVAS REGRAS Lei ignora risco sísmico PÁG.I6 #12;CONSTRU��O ¦ REABILITA��O URBANAAMEA�ASEGURAN�A DOS MORADORES Nova lei esquece regras antissismo ¦Arquitetos e engenheiros acusam Ministério do 30 anos recuperados sob as novas regras. Quem o diz são as ordens de ar- quitetos e engenheiros, que

Instituto de Sistemas e Robotica

17

Determinacion de Caracteristicas Opticas del Telescopio OAN150  

NASA Astrophysics Data System (ADS)

En el Observatorio de Calar Alto, en Almería, España, está ubicado un telescopio de 15O-cms de diámetro -construído por REOSC- perteneciente al Observatorio Astronómico Nacional, con sede en Madrid, España. La infraestructura técnica del OAN ha sido tradicionalmente débil y actualmente se está haciendo un esfuerzo por fortalecerla. Existe una información muy limitada del telescopio en general; de su óptica en particular se conocían los valores de los parámetros principales pero sin saber si éstos corresponden a valores teóricos ó de construcción. Por ello se consideró necesario iniciar una investigación para conocer en detalle los valores reales de las componentes ópticas del telescopio, obteniéndose algunos resultados de interés. El primario del telescopio OANl5O es aproximadamente F/3 y el siste ma en su conjunto es F/8.2, con su sistema corrector de campo. En términos generales, la imagen es satisfactoria en todo el campo y, sin sistema corrector, la imagen axial también es buena. En un futuro muy cercano se piensa diseñar instrumentación adicional para este telescopio. Conocer con mayor precisión sus características puede ser de gran utilidad para tal fin, pues se efectúan los cálculos considerando conjuntamente al telescopio y al instrumento.

Galan, M. J.; Cobos, F. J.

1987-05-01

18

Subgap DOS in Pb/Ag Bilayers Brown University  

E-print Network

/Ag Bilayers Brown University Mike, Zhenyi, Por, TJ #12;Subgap DOS in Pb/Ag Bilayers Brown University LiquidSubgap DOS in Pb/Ag Bilayers Brown University Subgap Density of States in Ultrathin Superconductor-Normal Metal Bilayers Zhenyi Long, Michael Stewart, Taejoon Kouh, and Jim Valles Brown University #12;Subgap

Fominov, Yakov

19

The Heme-Based Oxygen-Sensor Phosphodiesterase Ec DOS (DosP): Structure-Function Relationships  

PubMed Central

Escherichia coli Direct Oxygen Sensor (Ec DOS, also known as Ec DosP) is a heme-based O2-sensing phosphodiesterase from Escherichia coli that catalyzes the conversion of cyclic-di-GMP to linear di-GMP. Cyclic-di-GMP is an important second messenger in bacteria, highlighting the importance of understanding structure-function relationships of Ec DOS. Ec DOS is composed of an N-terminal heme-bound O2-sensing PAS domain and a C-terminal phosphodiesterase catalytic domain. Notably, its activity is markedly enhanced by O2 binding to the heme Fe(II) complex in the PAS sensor domain. X-ray crystal structures and spectroscopic and catalytic characterization of the wild-type and mutant proteins have provided important structural and functional clues to understanding the molecular mechanism of intramolecular catalytic regulation by O2 binding. This review summarizes the intriguing findings that have obtained for Ec DOS. PMID:25586128

Shimizu, Toru

2013-01-01

20

Genesis of the Angra dos Reis and other achondritic meteorites  

NASA Technical Reports Server (NTRS)

Major, minor, and trace element abundances were determined in seven Angra dos Reis samples, which included whole rocks, fassaite (clinopyroxene), olivine, and whitlockite separates, via sequential instrumental neutron activation analysis. The rare earth element abundance patterns and the trace element abundance patterns of this achondritic meteorite are discussed. A two-stage crystal-liquid fractionation model with source material containing olivine, orthopyroxene, and clinopyroxine is presented for the genesis of Angra dos Reis. Multilinear regression analysis was used to estimate possible composition and properties of the parent magmas. Angra dos Reis was compared with other achondrites, cumulate eucrites and nakhlites in particular. It is thought that the unique Angra dos Reis could not be related to those achondrites by crystal-liquid fractionation of the same parent body.

Ma, M.-S.; Murali, A. V.; Schmitt, R. A.

1977-01-01

21

Beaver on IPSec -Protection from DoS Attacks  

E-print Network

Beaver on IPSec - Protection from DoS Attacks Oleg Romanov #12;#12;Beaver on IPSec - Protection .......................................................................................................................7 4. BEAVER'S ARCHITECTURE...................................................................................................9 4.1 SESSIONS IN BEAVER

Keidar, Idit

22

Movimentos sociais, sindicato e imigrao Um estudo sobre o movimento dos trabalhadores sem-documentos na  

E-print Network

que a autora contextualiza e problematiza a nomenclatura a partir da luta política dos trabalhadores uma data fundamental na história dos movimentos sociais e em particular das lutas dos imigrantes. Foi

Paris-Sud XI, Université de

23

Isotopic and chemical investigations on Angra dos Reis  

NASA Technical Reports Server (NTRS)

Isotope ratios and chemical abundance measurements for a variety of elements are reported for total meteorite and mineral separates of the Angra dos Reis achondrite. U-Pb, Th-Pb, and Pb-Pb ages are concordant at 4.54 eons for the total meteorite and for high-purity whitlockite, which indicates that Angra dos Reis is an early planetary differentiate that has not been disturbed for these systems since 4.54 eons ago. The implications of different ratios of Sr-87 and Sr-86 found in different components are discussed. Xe isotopic measurements show that Pu-244 was enriched in the whitlockite relative to the pyroxene by a factor of about 18. Chemical enrichment factors between the whitlockite and the fassaitic pyroxene in Angra dos Reis are presented

Wasserburg, G. J.; Tera, F.; Papanastassiou, D. A.; Huneke, J. C.

1977-01-01

24

Xenon spallation systematics in Angra dos Reis. [meteoritic evolution  

NASA Technical Reports Server (NTRS)

Literature Xe data for the Angra dos Reis meteorite have been resolved into constituent spallation, fission and trapped components. The spallation Xe compositions vary over a range wider than observed in any other samples, including lunar samples. These variations are due to the mixing of spallation Xe from Ba and rare earth element targets. It is possible to infer the Ba and rare earth spallation Xe compositions. Angra dos Reis spallation Xe compositions are systematically different from those observed in lunar samples, possibly because of differences in the irradiation conditions (geometry and shielding). Thus the Angra dos Reis data appear to be superior to lunar data for predicting spallation Xe compositions in other meteorites.

Hohenberg, C. M.; Hudson, B.; Kennedy, B. M.; Podosek, F. A.

1981-01-01

25

33 CFR 101.505 - Declaration of Security (DoS).  

Code of Federal Regulations, 2010 CFR

(b) Details as to who must complete a DoS, when a DoS must be completed, and how long a DoS must be retained are included in parts 104 through 106 of this subchapter. A DoS must, at a minimum, include the information found in the ISPS Code, part B, appendix 1 (Incorporated by reference, see §...

2010-07-01

26

Intel I/O, Floating point o DOS System Calls  

E-print Network

Intel I/O, Floating point o DOS System Calls o Floating point 2 #12; Floating Point o integer: 1, 2, 3, 4 o fixed point: 100.001, 100.002, 123.456 o floating point: 100 x 103 , 101 x 103 , 123 x 105 o in the floating point

Biagioni, Edoardo S.

27

Revision 1, 2014-01-27 Dos Pueblos High School  

E-print Network

of the DPHS Traffic/Safety Committee and the Coalition for Sustainable Transportation (COAST) January 2014; the rest drive by necessity. Introduction The car traffic around Dos Pueblos High School (DPHS) has long been a source of concern. Though the daily traffic jams are brief, occurring for the most part just 15

Janée, Greg

28

LIMITAÇÕES LOGÍSTICAS PARA EXPORTAÇÃO: O CASO DOS PRODUTOS LÁCTEOS BRASILEIROS  

Microsoft Academic Search

O propósito desta pesquisa é avaliar a estrutura do agribusiness do leite no Brasil, identificando as principais limitações logísticas para exportação. Especificamente pretende identificar as principais empresas exportadoras de produtos lácteos, os produtos mais exportados e os países de destino; relatar as maneiras mais freqüentes de inserção dos produtos no mercado externo; e mencionar as estruturas físicas utilizadas pelas empresas

Adriano Abreu Rezende; Antonio Carlos dos Santos

2008-01-01

29

Avaliação dos custos logísticos em empresas do setor alimentício  

Microsoft Academic Search

Estrategicamente, as áreas de apoio, como a logística, têm impacto sobre o desempenho e custos dos produtos e serviços das organizações. Desse modo, a avaliação e controle da função log ística são importantes para a sobrevivência e competitividade, não só da organização, mas também da cadeia na qual está inserida. Este artigo apresenta algumas soluções, encontradas na literatura, para a

Graziela Laidens; Camila Duarte Teles; Cláudio José Müller

30

Leitura Econômica dos Jogos Olímpicos: Financiamento, Organização e Resultados  

Microsoft Academic Search

Os Jogos Olímpicos são uma combinação impressionante de espetáculo e competição, heroísmo e fatalidade, nacionalismo e globalização cultural. Todavia, há outro lado grandioso, revelado quando se observa o valor econômico dos Jogos Olímpicos. Há uma racionalidade que caminha em paralelo à organização das competições e à disputa de medalhas. São razões de Estado mescladas a interesses privados que, quando bem

Marcelo Weishaupt Proni; Lucas Speranza Araujo; Ricardo L. C. Amorim

2008-01-01

31

A INICIATIVA DOS ARQUIVOS ABERTOS COMO ALTERNATIVA A PUBLICAÇÕES CIENTÍFICAS  

Microsoft Academic Search

Este trabalho é resultado de uma pesquisa em andamento que tem por objetivo investigar o histórico, a conceituação e as características da Iniciativa dos Arquivos Abertos enfocando a sua aplicabilidade em repositórios institucionais. Trata-se de uma pesquisa descritiva e analítica, com base em análise documental, que focaliza o processo de comunicação científica, especificamente o desenvolvimento e a utilização da Iniciativa

S. VIDOTTI; G. P. OLIVEIRA

32

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.

1989-04-01

33

Ideología y grotesco en dos obras recientes de Adam Guevara  

E-print Network

estado quizá entre los autores de lectura obligatoria en el curso-taller de Adam Guevara, como si lo estuvo en el caso de Poquita fe. En esta obra y su respectiva puesta en escena hubo un doble tratamiento de los materiales dramáticos. El grotesco fue... la tónica de todo el tercer acto, con su tablado de marionetas que representaban la manipulación característica del mundo político mexicano. Pero los dos actos anteriores recibieron un tratamiento decididamente realista, con los típicos personajes...

Reyes Palacios, Felipe

1998-10-01

34

MODELAGEM MATEMÁTICA DOS NÍVEIS D'ÁGUA NO RIO ARAGUAIA  

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

35

Deceiving entropy-based DoS detection  

NASA Astrophysics Data System (ADS)

Denial of Service (DoS) attacks disable network services for legitimate users. A McAfee report shows that eight out of ten Critical Infrastructure Providers (CIPs) surveyed had a significant Distributed DoS (DDoS) attack in 2010.1 Researchers proposed many approaches for detecting these attacks in the past decade. Anomaly based DoS detection is the most common. In this approach, the detector uses statistical features; such as the entropy of incoming packet header fields like source IP addresses or protocol type. It calculates the observed statistical feature and triggers an alarm if an extreme deviation occurs. However, intrusion detection systems (IDS) using entropy based detection can be fooled by spoofing. An attacker can sniff the network to collect header field data of network packets coming from distributed nodes on the Internet and fuses them to calculate the entropy of normal background traffic. Then s/he can spoof attack packets to keep the entropy value in the expected range during the attack. In this study, we present a proof of concept entropy spoofing attack that deceives entropy based detection approaches. Our preliminary results show that spoofing attacks cause significant detection performance degradation.

Özçelik, Ä.°lker; Brooks, Richard R.

2014-06-01

36

Mapeamento de Projees por Sistema Kinect-Projetor Projection Mapping for a Kinect-Projector System  

E-print Network

diversas aplicações. Chamada de Realidade Aumentada [1], essa tecnologia combina conceitos de realidade]. · Propaganda[9]. · Performances ao vivo[10]. · Lazer[11][12]. · Medicina[13]. · Quaisquer indivíduos que tecnologia. O framework proposto neste trabalho visa englobar as seguintes caracteristicas: · Compreensão dos

Barbosa, Alberto

37

Structures of Mycobacterium tuberculosis DosR and DosR?DNA Complex Involved in Gene Activation during Adaptation to Hypoxic Latency  

SciTech Connect

On encountering low oxygen conditions, DosR activates the transcription of 47 genes, promoting long-term survival of Mycobacterium tuberculosis in a non-replicating state. Here, we report the crystal structures of the DosR C-terminal domain and its complex with a consensus DNA sequence of the hypoxia-induced gene promoter. The DosR C-terminal domain contains four {alpha}-helices and forms tetramers consisting of two dimers with non-intersecting dyads. In the DNA-bound structure, each DosR C-terminal domain in a dimer places its DNA-binding helix deep into the major groove, causing two bends in the DNA. DosR makes numerous protein-DNA base contacts using only three amino acid residues per subunit: Lys179, Lys182, and Asn183. The DosR tetramer is unique among response regulators with known structures.

Wisedchaisri, Goragot; Wu, Meiting; Rice, Adrian E.; Roberts, David M.; Sherman, David R.; Hol, Wim G.J. (UWASH)

2010-07-20

38

Trace Element Distribution Between Olivine and Kirschsteinite in Angra Dos Reis  

NASA Astrophysics Data System (ADS)

Kirschsteinite occurs interstitially to olivine grains in olivine aggregates in the Angra dos Reis angrite. Trace element abundances in these two phases in Angra dos Reis are similar to trace element abundances in these phases in LEW86010.

Fittipaldo, M. M.; Jones, R. H.; Shearer, C. K.

2003-03-01

39

A natural product based DOS library of hybrid systems.  

PubMed

Here we described a natural product inspired modular DOS strategy for the synthesis of a library of hybrid systems that are structurally and stereochemically disparate. The main scaffold is a pyrroloisoquinoline motif, that is synthesized from tandem Pictet-Spengler lactamization. The structural diversity is generated via "privileged scaffolds" that are attached at the appropriate site of the motif. Screening of the library compounds for their antiplasmodial activity against chloroquine sensitive 3D7 cells indicated few compounds with moderate activity (20-50 ?M). A systematic comparison of structural intricacy between the library members and a natural product dataset obtained from ZINC(®) revealed comparable complexity. PMID:25794788

Prabhu, Ganesh; Agarwal, Shalini; Sharma, Vijeta; Madurkar, Sanjay M; Munshi, Parthapratim; Singh, Shailja; Sen, Subhabrata

2015-05-01

40

PERFIL DOS CONSUMIDORES DE TOMATE DE MESA EM UM HIPERMERCADO DE CAMPINAS - SP1  

Microsoft Academic Search

RESUMO: Atualmente é o consumidor quem detém o poder, que a partir de maiores conhecimentos e informações passa a exigir cada vez mais pela qualidade dos produtos a serem consumidos. Desta forma é ele quem sinaliza os caminhos que as empresas alimentícias devem seguir para garantir satisfação dos clientes. Os agricultores também têm responsabilidade quanto à qualidade dos produtos, devendo

CAROLINE ANDREUCCETTI; MARCOS DAVID FERREIRA; SYLVIO L. HONÓRIO; ANITA S. D. GUTIERREZ; MARCELO TAVARES

41

Detection of DoS attacks using intrusion detection sensors  

NASA Astrophysics Data System (ADS)

Intrusion detection systems have usually been developed using large host-based components. These components impose an extra load on the system where they run (sometimes even requiring a dedicated system) and are subject to tampering or disabling by an intruder. Additionally, intrusion detection systems have usually obtained information about host behavior through indirect means, such as audit trails or network packet traces. This potentially allows intruders to modify the information before the intrusion detection system obtains it and slows down the detection and prevention of DoS attacks, making it possible for an intruder to hide his activities. In this paper we propose work that will attempt to show that it is possible to perform intrusion detection mechanism of DoS attacks using small sensors embedded in a computer system. These sensors will look for signs of specific intrusions. They will perform target monitoring by observing the behavior of the through an audit trail or other indirect means in real time while the Snort IDS running. Furthermore, by being built into the computer system it could provide a flexible alert sensor which may not impose a considerable extra load on the host they monitor.

Ramakrishna, Pathmenanthan; Maarof, Mohd A.

2002-09-01

42

Dynamic crystallization experiments on the Angra DOS Reis achondritic meteorite  

NASA Astrophysics Data System (ADS)

The types of cooling histories necessary to produce the porphyritic texture and the observed mineral assemblage in Angra dos Reis (ADOR) achondritic meteorite, which, on the basis of its trace element characteristics was considered to be a cumulate with a recrystallized texture, while a recent model suggested that ADOR is a porphyry. Dynamic crystallization experiments were conducted with nucleation conditions varied by melting the starting material at different degrees of superheat. The results show that, at low pressure, a volcanic or hypabyssal history of ADOR is possible. The most likely history involved cooling from a slightly subliquidus temperature with a relatively high and irregular nucleation density resulting in a granular texture with the poikilitic fassaite growing late; accumulation of some crystal is tought to be probable.

Lofgren, G. E.; Lanier, A. B.

1992-07-01

43

Dynamic crystallization experiments on the Angra dos Reis achondritic meteorite  

NASA Technical Reports Server (NTRS)

The types of cooling histories necessary to produce the porphyritic texture and the observed mineral assemblage in Angra dos Reis (ADOR) achondritic meteorite, which, on the basis of its trace element characteristics was considered to be a cumulate with a recrystallized texture, while a recent model suggested that ADOR is a porphyry. Dynamic crystallization experiments were conducted with nucleation conditions varied by melting the starting material at different degrees of superheat. The results show that, at low pressure, a volcanic or hypabyssal history of ADOR is possible. The most likely history involved cooling from a slightly subliquidus temperature with a relatively high and irregular nucleation density resulting in a granular texture with the poikilitic fassaite growing late; accumulation of some crystal is tought to be probable.

Lofgren, G. E.; Lanier, A. B.

1992-01-01

44

Document image archive transfer from DOS to UNIX  

NASA Technical Reports Server (NTRS)

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 PC controlled bank of optical disk drives which use 12 inch WORM platters containing bitmapped images of over 200,000 pages of medical journals. Following three years of routine operation which resulted in serving patrons with articles both by mail and fax, an effort is underway to relocate the storage environment from the DOS-based system to a UNIX-based jukebox whose magneto-optical erasable 5 1/4 inch platters hold the images. This paper describes the deficiencies of the current storage system, the design issues of modifying several modules in the system, the alternatives proposed and the tradeoffs involved.

Hauser, Susan E.; Gill, Michael J.; Thoma, George R.

1994-01-01

45

Novas determinações dos parâmetros atmosféricos das estrelas anãs brancas DA  

NASA Astrophysics Data System (ADS)

Nós temos selecionado uma amostra de estrelas anãs brancas DA (atmosfera de hidrogênio) a partir dos índices de Strömgren cujos valores estão próximos a região de instabilidade das estrelas anãs brancas DA variáveis, as chamadas estrelas DAV ou ZZ Ceti. O objetivo é determinar os parâmetros fundamentais (temperatura efetiva, Teff, aceleração da gravidade, log g, e massa) destas estrelas para verificar quais os parâmetros estelares estão envolvidos com o mecanismo de pulsação das estrelas DAV. Nós obtemos, até agora, mais de 120 espectros óticos de estrelas DA. Entre as estrelas selecionadas há 20 estrelas variáveis (DAV). Assim, podemos verificar se existem ou não estrelas não variáveis dentro da faixa de instabilidade das estrelas ZZ Ceti. Neste trabalho nós apresentamos a determinação dos parâmetros atmosféricos (temperatura efetiva, Teff, e aceleração da gravidade, log g) das estrelas anãs brancas DA usando os novos modelos de atmosfera ML2/a = 0.6. Estes modelos têm sido utilizados recentemente por fornecerem uma excelente consistência interna na determinação das temperaturas nas regiões do ultra-violeta e ótico. Os parâmetros atmosféricos são determinados espectroscopicamente através da comparação do fluxo de energia das linhas de Balmer (Hb à H9) entre os espectros observados e sintéticos (gerados pelos modelos de atmosfera). As temperaturas obtidas com os novos modelos são, em geral, menores (~ 1000 K menos) que as temperaturas determinadas anteriormente, com modelos ML1. Os valores de log g não mudaram significativamente (menos de 10%). A faixa de instabilidade das DAVs está entre 11000 e 13000 K, consistente com dados de outros autores.

Giovannini, O.; Costa, A. F. M.; Kepler, S. O.

2003-08-01

46

RETROANLISE NEURAL PARA A IDENTIFICAO DOS PARMETROS ELSTICOS DA BARRAGEM CASCA DE FUNIL.  

E-print Network

1 RETROANÁLISE NEURAL PARA A IDENTIFICA��O DOS PAR�METROS ELÁSTICOS DA BARRAGEM CASCA DE FUNIL trabalho utiliza­se uma rede neural na identificação dos parâmetros elásticos dos materiais da casca e do maciço de fundação da barragem de Funil, a partir das medições efetuadas em cinco pontos instrumentados

Coutinho, Alvaro L. G. A.

47

Queda dos homicídios em São Paulo, Brasil: uma análise 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. PMID:21390415

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

2012-01-01

48

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. PMID:22544737

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

2012-01-01

49

Divulgação voluntária da demonstração dos fluxos de caixa no mercado de capitais Brasileiro  

Microsoft Academic Search

RESUMO Este trabalho avalia os motivos da divulgação voluntária da DFC, Demonstração dos Fluxos de Caixa, no mercado de capitais brasileiro. Para tal, utiliza o referencial teórico da Teoria da Divulgação Voluntária. A partir do modelo proposto por Verrecchia (2001), são elaboradas cinco hipóteses relacionando a divulgação voluntária da DFC a outras variáveis. Essas hipóteses são testadas a partir dos

Bruno Meirelles Salotti; Marina Mitiyo Yamamoto

2008-01-01

50

57918 EDUARDO LUIS FINO PINTO BASTO 8.6 58654 MARCOS ANDRE MAURICIO GOMES  

E-print Network

Farinha David Alexandre Ferreira Ivo Duarte Marques Soares Filipe Cerejo Correia Francisco Miguel Galego Lucia Isabel de Sousa Pereira Luis Pedro Santos Oliveira Mafalda Filipa Venancio Santos Maria Margarida de Moura Patricia Filipa Jones da Silva Ferreira Rodrigues Pedro David Almeida de Matos Pedro Gil

Baia, Margarida

51

The Traits of Effective Spanish Writing = Las caracteristicas de la buena escritura en espanol. Second Edition.  

ERIC Educational Resources Information Center

This English-Spanish language report includes the rationale for creating an assessment model for Spanish writing, offering an overview of the components of high quality assessment for any subject area, particularly Spanish writing. It presents the characteristics of effective Spanish writing, rubrics for scoring student performance based on the…

Flores, Will A.; Arrasmith, Dean G.

52

48 CFR 653.219-71 - DOS form DS-4053, Department of State Mentor-Protégé Program Application.  

Code of Federal Regulations, 2014 CFR

...false DOS form DS-4053, Department of State Mentor-Protégé Program...Acquisition Regulations System DEPARTMENT OF STATE CLAUSES AND FORMS FORMS...219-71 DOS form DS-4053, Department of State Mentor-Protégé Program...

2014-10-01

53

48 CFR 653.219-71 - DOS form DS-4053, Department of State Mentor-Protégé Program Application.  

Code of Federal Regulations, 2012 CFR

...false DOS form DS-4053, Department of State Mentor-Protégé Program...Acquisition Regulations System DEPARTMENT OF STATE CLAUSES AND FORMS FORMS...219-71 DOS form DS-4053, Department of State Mentor-Protégé Program...

2012-10-01

54

48 CFR 653.219-71 - DOS form DS-4053, Department of State Mentor-Protégé Program Application.  

Code of Federal Regulations, 2010 CFR

...false DOS form DS-4053, Department of State Mentor-Protégé Program...Acquisition Regulations System DEPARTMENT OF STATE CLAUSES AND FORMS FORMS...219-71 DOS form DS-4053, Department of State Mentor-Protégé Program...

2010-10-01

55

48 CFR 653.219-71 - DOS form DS-4053, Department of State Mentor-Protégé Program Application.  

Code of Federal Regulations, 2013 CFR

...false DOS form DS-4053, Department of State Mentor-Protégé Program...Acquisition Regulations System DEPARTMENT OF STATE CLAUSES AND FORMS FORMS...219-71 DOS form DS-4053, Department of State Mentor-Protégé Program...

2013-10-01

56

48 CFR 653.219-71 - DOS form DS-4053, Department of State Mentor-Protégé Program Application.  

Code of Federal Regulations, 2011 CFR

...false DOS form DS-4053, Department of State Mentor-Protégé Program...Acquisition Regulations System DEPARTMENT OF STATE CLAUSES AND FORMS FORMS...219-71 DOS form DS-4053, Department of State Mentor-Protégé Program...

2011-10-01

57

Governo apresenta reforma da rede do Superior em Maro sem contributo dos reitores  

E-print Network

Governo apresenta reforma da rede do Superior em Março sem contributo dos reitores O Ministério da a racionalização da rede do Superior que vai passar pela cria- ção de consórcios entre universida- des e

Instituto de Sistemas e Robotica

58

Calcium Isotopic Anomalies in the Allende CAIs and the Angrite Angra dos Reis  

NASA Astrophysics Data System (ADS)

Both negative 48Ca and 50Ti anomalies of the Angrite Angra dos Reis was identified in this study, and the result supported previous study of correlated negative 54Cr and 50Ti anomalies in achondrites.

Chen, H. W.; Chen, J. C.; Lee, T.; Shen, J. J.

2010-03-01

59

An integrated machine learning approach for predicting DosR-regulated genes in Mycobacterium tuberculosis  

E-print Network

Abstract Background DosR is an important regulator of the response to stress such as limited oxygen availability in Mycobacterium tuberculosis. Time course gene expression data enable us to dissect this response on the gene regulatory level. The m...

Zhang, Yi; Hatch, Kim A; Bacon, Joanna; Wernisch, Lorenz

2010-03-31

60

Anais do ZOOTEC'2005 -24 a 27 de maio de 2005 Campo Grande-MS "DOS PEIXES E DOS HOMENS: O ESTUDO DO BEM-ESTAR  

E-print Network

ESTUDO DO BEM-ESTAR ANIMAL APLICADO � PISCICULTURA" Leonor Galhardo1 , Rui Oliveira2 Introdução Os peixes acerca do bem-estar animal no grupo dos peixes é ainda muito reduzido (Braithwaite & Huntingford 2004). Nas últimas décadas os estudos de bem-estar centraram-se em mamíferos e aves nos mais variados

61

OS AEROPORTOS DE VIRACOPOS E DE SÃO JOSÉ DOS CAMPOS E AS ESTRATÉGIAS EMPRESARIAIS NO MERCADO MUNDIAL1  

Microsoft Academic Search

Resumo: neste artigo procurou-se compreender a logística dos aeroportos de Viracopos e de São José dos Campos como parte das estratégias de concorrência das grandes empresas no Brasil que atuam no mercado mundial. Enfatizou-se que os aeroportos cargueiros influenciam o desenvolvimento nacional e regional e são influenciados pela dinâmica econômica dos municípios onde estão localizados, pois o transporte aéreo de

JOSMAR CAPPA

62

Defending against path-based DoS attacks in wireless sensor networks  

Microsoft Academic Search

Denial of service (DoS) attacks can cause serious damage in resource-constrained, wireless sensor networks (WSNs). This paper addresses an especially damaging form of DoS attack, called PDoS (Path-based Denial of Service). In a PDoS attack, an adversary overwhelms sensor nodes a long distance away by flooding a multi-hop end-to-end communication path with either replayed packets or injected spurious packets. This

Jing Deng; Richard Han; Shivakant Mishra

2005-01-01

63

Evaluación de dos esquemas de inmunización para la Evaluación de dos esquemas de inmunización para la Evaluación de dos esquemas de inmunización para la Evaluación de dos esquemas de inmunización para la producción de sueros producción de sueros producción de sueros producción de sueros hiperinmunes contra hiperinmunes contra hiperinmunes contra hiperinmunes contra Leptospira Leptospira Leptospira Leptospira interrogans interrogans interrogans interrogans  

Microsoft Academic Search

Los antisueros policlonales utilizados para el serotipaje de cepas de Leptospira deben caracterizarse por un alto nivel de aglutininas específicas a un serogrupo o serovar determinado y una baja reactividad cruzada frente al resto de las serovariedades. El presente trabajo se desarrolló con el objetivo de evaluar y comparar dos de los esquemas de inmunización reportados para la obtención de

Andrés González; Niurka Batista; Manuel Ortíz; Vismark Torres; Juan F. Infante; Marta González

2002-01-01

64

Prepared by KSH/SSD/DOS 12/11/08 Services for Students with Disabilities  

E-print Network

Prepared by KSH/SSD/DOS 12/11/08 Services for Students with Disabilities Guidelines for Documenting Blindness and Low Vision Students seeking support services from Services for Students with Disabilities (SSD below. Please do not hesitate to contact SSD at (512) 471-6259 if you have any questions

Texas at Austin, University of

65

Content Analysis Schedule for Bilingual Education Programs: Programa en Dos Lenguas.  

ERIC Educational Resources Information Center

This content analysis schedule for the "Programa en Dos Lenguas" of Fort Worth, Texas, presents information on the history, funding, and scope of the project. Included are sociolinguistic process variables such as the native and dominant languages of students and their interaction. Information is provided on staff selection and the linguistic…

Ludanyi, R. P.; Shore, Marietta Saravia

66

Acoplamento de Modelo Não-Linear de Diodo com o Método dos Elementos Finitos  

Microsoft Academic Search

Resumo ? Este trabalho apresenta o acoplamento fraco de diodos com o Método dos Elementos Finitos. Os diodos são modelados através de uma equação não-linear e o acoplamento destes com o programa de elementos finitos é realizado através do MATLAB. A aplicação se faz com o estudo passo a passo no tempo de um indutor alimentado por uma fonte de

Silvio Ikuyo Nabeta; Kay Hameyer; Herbert De Gersem

67

Dos casos de intoxicación por contaminación de maíz con Datura stramonium en ganado vacuno  

Microsoft Academic Search

Resumen: Recientemente hemos observado dos intoxicaciones en ganado vacuno lechero, en granjas de Cataluña, debidas a la ingestión de estramonio (Datura stramonium). La planta había sido en ambos casos erróneamente recolectada junto con el maíz empleado para la alimentación de los animales. El cuadro fue leve y, básicamente, cursó con problemas digestivos y descenso en la producción lechera, y remitió

Bofill FX; Bofill J

2007-01-01

68

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

2004-01-01

69

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

2002-01-01

70

ANÁLISE DA QUALIDADE DOS REGISTROS NOS PRONTUÁRIOS DE GESTANTES COM EXAME DE VDRL REAGENTE  

Microsoft Academic Search

? RESUMO Este estudo tem por objetivo analisar a qualidade dos re- gistros nos prontuários de gestantes com Venereal Disease Research Laboratory- VDRL reagente, no período de 2000 a 2005, em uma unidade básica de saúde. Trata-se de um estudo descritivo retrospectivo, realizado em uma institui- ção escolar em Fortaleza, Ceará, nos meses de setembro e outubro de 2006. Foram

Maria Alix Leite Araújo; Denise Mai; Alves da Silva; Raimunda Magalhães da Silva; Marcelo Luiz Carvalho Gonçalves

71

A luta pela reduo da jornada de trabalho tem vrias frentes no movimento dos  

E-print Network

A luta pela redução da jornada de trabalho tem várias frentes no movimento dos trabalhadores política e histórica, uma "bandeira de luta" de muitos trabalhadores/as em nível nacional e internacional

Floeter, Sergio Ricardo

72

Stretching the Software Dollar: MS-DOS Shareware and Public Domain Software.  

ERIC Educational Resources Information Center

Discusses shareware and public domain software for MS-DOS systems that are available through bulletin board systems (BBS). Problems with computer viruses are discussed; shareware available for communications, database and file management, spreadsheets, word processing, and menuing software is described; and source information for software is…

Grosch, Audrey N.

1989-01-01

73

PASSADO E PRESENTE DA POLÍTICA DE GESTÃO DOS RECURSOS HÍDRICOS NO BRASIL  

Microsoft Academic Search

Resumo - Escassez hídrica, poluição dos rios e desiguais oportunidades de acesso à água são sintomas de um crescente antagonismo entre desenvolvimento eco- nómico e questões socioambientais no Brasil. Este progressivo afastamento entre economia e ambiente decorre de um processo mais amplo de acumulação de capital e inserção subordinada do país no mercado mundial. Reformas institucionais recen- tes vêm promovendo

ANTÔNIO AUGUSTO; ROSSOTTO IORIS

74

Distillation Codes and Applications to DoS Resistant Multicast Authentication  

E-print Network

Distillation Codes and Applications to DoS Resistant Multicast Authentication Chris Karlof UC We introduce distillation codes, a method for streaming and storing data. Like erasure codes, distillation codes allow information to be decoded from a sufficiently large quorum of symbols. In contrast

Perrig, Adrian

75

The dos and don'ts of distillation column control Sigurd Skogestad*  

E-print Network

The dos and don'ts of distillation column control Sigurd Skogestad* Department of Chemical discusses distillation column control within the general framework of plantwide control. In addition for distillation columns. The standard LV-configuration combined with a fast temperature loop is recommended

Skogestad, Sigurd

76

DOS VISIONES DEL HOMBRE AMERICANO. D'ORBIGNY, MARCOY Y LA ETNOLOGÍA SUDAMERICANA  

Microsoft Academic Search

Resumen La reciente publicación de los viajes por América del Sur de d'Orbigny y Marcoy invita a comparar, tanto del punto de vista científico como por su recepción frente al gran público, sus contribuciones respectivas al estudio de las sociedades indígenas de las tierras bajas. Si bien los dos viajeros se oponen en muchos aspectos, compartieron sin embargo actitudes comunes

Jean-Pierre CHAUMEIL

77

La internacionalización de dos grandes empresas constructoras españolas: FCC y Dragados (c. 1960-1992)  

Microsoft Academic Search

Este artículo analiza la trayectoria histórica de internacionalización de dos grandes empresas\\u000aconstructoras españolas (FCC y Dragados) desde la década de 1960 hasta comienzos de los años noventa del siglo pasado, un periodo que precede a la fuerte expansión internacional del sector acaecida en los últimos quince años. Tiene por objeto estudiar la forma cómo estas empresas crearon y acumularon

Eugenio Torres Villanueva

2009-01-01

78

Increasing the DoS attack resiliency in military ad hoc networks  

Microsoft Academic Search

This paper investigates resiliency of three ad hoc routing protocols against the range attack. This denial of service (DoS) attack has not been described in the literature before. It is based on modifying the transmission range of a wireless node periodically which causes continuous changes in the topology of an ad hoc network. The range attack does not require a

Jarmo V. E. Mölsä

2005-01-01

79

The intraplate Porto dos Gaúchos seismic zone in the Amazon craton — Brazil  

NASA Astrophysics Data System (ADS)

The largest earthquake observed in the stable continental interior of the South American plate occurred in Serra do Tombador, Mato Grosso state — Brazil, on January 31, 1955 with a magnitude of 6.2 mb. Since then no other earthquake has been located near the 1955 epicentre. However, in Porto dos Gaúchos, 100 km northeast of Serra do Tombador, a recurrent seismicity has been observed since 1959. Both Serra do Tombador and Porto dos Gaúchos are located in the Phanerozoic Parecis basin. Two magnitude 5 earthquakes occurred in Porto dos Gaúchos, in 1998 and 2005, with intensities up to VI and V, respectively. These two main shocks were followed by aftershock sequences lasting more than three years each. Local seismic stations have been deployed by the Seismological Observatory of the University of Brasilia since 1998 to study the "Porto dos Gaúchos" seismic zone (PGSZ). A local seismic refraction survey was carried out with two explosions to help define the seismic velocity model. Both the 1998 and 2005 earthquake sequences occurred in the same WSW-ENE oriented fault zone with right-lateral strike-slip mechanisms. The epicentral zone is in the Parecis basin, near its northern border where there are buried grabens, generally trending WNW-ESE, such as the deep Mesoproterozoic Caiabis graben which lies partly beneath the Parecis basin. However, the epicentral distribution indicates that the 1998 and 2005 sequences are related to a N60°E fault which probably crosses the entire Caiabis graben. The 1955 earthquake, despite the uncertainty in its epicentre, does not seem to be directly related to any buried graben either. The seismicity in the Porto dos Gaúchos seismic zone, therefore, is not directly related to rifted crust. The probable direction of the maximum horizontal stress near Porto dos Gaúchos is roughly E-W, consistent with other focal mechanisms further south in the Pantanal basin and Paraguay, but seems to be different from the NW-SE direction observed further north in the Amazon basin. The recurrent seismicity observed in Porto dos Gaúchos, and the large 1955 earthquake nearby, make this area of the Parecis basin one of the most important seismic zones of Brazil.

Barros, Lucas Vieira; Assumpção, Marcelo; Quintero, Ronnie; Caixeta, Daniel

2009-04-01

80

Supplemental Material In Figure 7 we monitored the DOS transition in the 3d period, and in Figure 8 total DOS  

E-print Network

of DOS, placing a gap of states at the EF of PtN2. Figure A. Total density of states of pyrite-type IrN2 ZrN2 and HfN2 are semiconductors. #12;Figure B. Total density of states of pyrite-type NiN2, PdN2 and PtN2. Figure C. Total density of states of pyrite-type TiN2, ZrN2 and HfN2. Summarizing the above

Khare, Sanjay V.

81

Dos comunicaciones.  

E-print Network

lenguaje se me han ido desinflando, cayendo por el camino. En lenguaje costumbrista, el lenguaje como expresión psicologista, las formas más o menos habituales del lenguaje coloquial, el lenguaje culto de exposición de ideas, etc., se han ido...

Dí az, Jorge

1970-10-01

82

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

2011-12-01

83

Qual o Papel da Escola e da Mídia na Obtenção dos Conhecimentos Astronômicos?  

NASA Astrophysics Data System (ADS)

É amplamente reconhecido que as pessoas em geral têm grande fascínio e interesse pela Astronomia. Por outro lado, o conteúdo dessa área incluído no ensino formal está longe de ser abrangente e suficiente para suprir a demanda. Esse interesse permite aperfeiçoar a divulgação e o ensino não formal de Astronomia através da mídia aliando a adequação do conteúdo à expectativa das pessoas. A reforma do Currículo Básico da Escola Pública da maioria dos Estados brasileiros tem introduzido Astronomia desde a pré-escola até o Ensino Médio. Num estudo realizado com 1180 alunos do Ensino Médio de seis escolas estaduais, revelou-se através da aplicação de um formulário contendo questões que abordavam conhecimentos básicos em Astronomia, como foram adquiridos tais conhecimentos e à infra-estrutura da escola. Para 66,1% dos entrevistados o professor já fez alguma apresentação a respeito de Astronomia. O presente estudo revelou também que 54,4% dos alunos entrevistados adquiriram seus conhecimentos astronômicos na escola, 18,4% através da televisão e 27,1% afirmaram que seus conhecimentos foram obtidos através de outros tipos de mídia (internet, livros didáticos, filmes e revistas). Embora o estudo revele claramente que há certo equilíbrio no meio em que os alunos obtiveram seus conhecimentos astronômicos, a mídia busca não somente sua difusão, mas a disponibilização desse conhecimento de maneira correta, que às vezes, não é atingido, apresentando conceitos sem fundamentação e incorretos. Por outro lado, no dia-a-dia escolar, é comum encontrar professores que vêm para as aulas com concepções prévias, que podem diferir substancialmente das idéias a serem ensinadas, dificultando o aprendizado de futuros conceitos científicos. Uma avaliação criteriosa, avaliando as dificuldades dos professores em determinar o sentido correto dos conceitos e observando a metodologia que utilizam no ensino, poderá proporcionar uma melhor compreensão sobre as concepções alternativas, presentes no ensino de Astronomia.

da Cunha, W. S.; Voelzke, M. R.; Amaral, L. H.

2007-08-01

84

Identifying changes in tropical vegetation coverage productivity at Cueva Dos Ojos, Puerto Rico using IKONOS, ETM+, and OLI  

E-print Network

1 Identifying changes in tropical vegetation coverage productivity at Cueva Dos Ojos, Puerto Rico climates. Identifying changes in tropical vegetation productivity at Cueva Dos Ojos, Puerto Rico could aid in the evaluation of the carbon isotope signature. Normalized Difference Vegetation Indices (NDVI) were calculated

Gilbes, Fernando

85

Influência da presença de endossimbionte em Brevipalpus phoenicis na aquisição e transmissão do vírus da leprose dos citros.  

Technology Transfer Automated Retrieval System (TEKTRAN)

A leprose dos citros destaca-se como uma fitovirose de grande impacto econômico e ambiental à citricultura, elevando o custo de produção para o controle do vetor B. phoenicis. É conhecido que a presença de endossimbiontes do gênero Cardinium em ácaros Brevipalpus spp. causa a feminilização dos ácaro...

86

Models that Teach about the Computer: AppleWorks and ProDOS, the Computer's Memory and Disk Storage.  

ERIC Educational Resources Information Center

This final article in a series on creating models for teaching about computer memory and disk storage and retrieval focuses on AppleWorks software and the Professional Disk Operating System (ProDOS). Instructions for creating a paper model of the AppleWorks menu system and the ProDOS disk file are given. (LRW)

Niess, Margaret L.

1989-01-01

87

O CONTEXTO ESCOLAR EM CRIANÇAS COM SÍNDROME NEFRÓTICO E COM DOENÇA CELÍACA: PERCEPÇÕES DOS PROFESSORES EM ÁREAS ESPECÍFICAS  

Microsoft Academic Search

RESUMO: No âmbito de um estudo mais vasto dirigido para o impacto do Síndrome Nefrótico e da Doença Celíaca na infância, pretende-se avaliar as percepções dos professores face às crianças em áreas específicas do contexto escolar. Para tal utilizam-se dois questionários: o primeiro, construído para o efeito, contempla conteúdos como a adaptação da criança à escola, a reacção dos professores

Salomé Vieira Santos

88

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

PubMed

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

2011-07-01

89

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. PMID:24031739

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

2011-01-01

90

DOS, a Novel Pleckstrin Homology Domain–Containing Protein Required for Signal Transduction between Sevenless and Ras1 in Drosophila  

Microsoft Academic Search

The specification of the R7 photoreceptor cell in the developing eye of Drosophila is dependent upon activation of the Sevenless (SEV) receptor tyrosine kinase. By screening for mutations that suppress signaling via a constitutively activated SEV protein, we have identified a novel gene, daughter of sevenless (dos). DOS is required not only for signal transduction via SEV but also in

Thomas Raabe; Xiangdong Liu; Burkhard S Bausenwein; Peter Deak; Peter Maröy; Ernst Hafen

1996-01-01

91

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 (http://hamilton.dm.unipi.it/cgi-bin/astdys/astibo). 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.

2003-08-01

92

An alternate hypothesis for the origin of Angra dos Reis - Porphyry, not cumulate  

NASA Technical Reports Server (NTRS)

The Angra dos Reis achondrite is a unique meteorite of potentially great importance for understanding the origins of the solar system and of the terrestrial planets. It is proposed that the meteorite, which consists of megacrysts of Al-Ti augite (fassaite) in skeletal or cellular shapes, olivine, and possibly whitlockite in a fine-grained groundmass of the same materials plus spinel, is a porphyritic igneous rock modified by metamorphism. In this interpretation, the megacrysts represent cellular-textured phenocrysts, and the fine-grain groundmass represents crystallized or devitrified magma. Phase equilibria suggest that Angra dos Reis-like compositions could grow phenocrysts of fassaite pyroxene, olivine, and whitlockite. These same compositions could crystallize, without crystal sorting or accumulation, to an almost monomineralic fassaite pyroxenite.

Treiman, A. H.

1989-01-01

93

An alternate hypothesis for the origin of Angra DOS Reis - Porphyry, not cumulate  

NASA Astrophysics Data System (ADS)

The Angra dos Reis achondrite is a unique meteorite of potentially great importance for understanding the origins of the solar system and of the terrestrial planets. It is proposed that the meteorite, which consists of megacrysts of Al-Ti augite (fassaite) in skeletal or cellular shapes, olivine, and possibly whitlockite in a fine-grained groundmass of the same materials plus spinel, is a porphyritic igneous rock modified by metamorphism. In this interpretation, the megacrysts represent cellular-textured phenocrysts, and the fine-grain groundmass represents crystallized or devitrified magma. Phase equilibria suggest that Angra dos Reis-like compositions could grow phenocrysts of fassaite pyroxene, olivine, and whitlockite. These same compositions could crystallize, without crystal sorting or accumulation, to an almost monomineralic fassaite pyroxenite.

Treiman, A. H.

94

Trace Element Distribution Between Olivine and Kirschsteinite in Angra Dos Reis  

NASA Technical Reports Server (NTRS)

The angrites are a small and enigmatic group of basaltic achondrites that possess unique mineralogical and chemical properties. The dominant mineralogy of the seven angrite members (Angra dos Reis, LEW 86010, LEW 87051, Asuka 881371, Sahara 99555, D Orbigny, and a new Moroccan member) is fassaite, olivine, and plagioclase. Angrites display a wide range of thermal histories, with Angra dos Reis (AdoR) exhibiting a cooling history different from that of the rapidly cooled members and from LEW86010, a more slowly cooled member. AdoR could represent either a cumulate or a porphyritic igneous rock that was later altered by metamorphism. We are re-examining the thermal history of AdoR in light of the more recently described angrite members. Our emphasis is a trace element study of low-Ca olivine, which we refer to as olivine, and high-Ca olivine, which we refer to as kirschsteinite, in AdoR.

Fittipaldo, M. M.; Jones, R. H.; Shearer, C. K.

2003-01-01

95

livro de reclamaes dos estudantes do superior j tem milhares de pginas  

E-print Network

livro de reclamações dos estudantes do superior já tem milhares de páginas Das dificuldades em. Depois, as reclamações vão ser reuni- das em livro e enviadas ao Presidente da República e ao Governo num livro, que será enviado ao Presidente da República, Cavaco Silva, ao primeiro-ministro, Pedro

Instituto de Sistemas e Robotica

96

Contribuição dos fatores de risco psicossociais para o transtorno de déficit de atenção\\/hiperatividade  

Microsoft Academic Search

RESUMO - Objetivo: Analisar a contribuição dos fatores psicossociais para a ocorrência do transtorno de déficit de atenção\\/hiperatividade (TDAH).M é t o d o:Este é um estudo retrospectivo de casos-controles que analisou 403 alunos de uma escola pública primária. Preencheram-se o questionário de sintomas do DSM- IV e um questionário psicossocial específico e realizaram-se anamnese e exames físico e neurológico

Marcio M. Vasconcelos; Ana Flávia de A. Malheiros; Jairo Werner Jr.; Adriana R. Brito; Jane Bardawil Barbosa; Ítalo S. Oliveira Santos; Daniel Fampa N. Lima

2005-01-01

97

Investigação dos perfís temporais de alta resolução de explosões solares tipo-III decimétricas  

NASA Astrophysics Data System (ADS)

Explosões solares tipo-III indicam a presença de feixes de elétrons acelerados durante "flares" solares. Sua investigação fornece informações tanto sobre os processos de aceleração de partículas quanto das características do agente causador e do local de aceleração. Explosões tipo-III decimétricas são geradas por feixes de elétrons viajando através de arcos magnéticos densos da baixa coroa solar. Os perfís temporais destes fenômenos, quando tomados com alta resolução, informam sobre os mecanismos de aceleração de partículas do feixe e o meio de transporte da energia liberada a partir da região de aceleração. Usando o Brazilian Solar Spectroscope (BSS), em operação no INPE, foram registradas dezenas de explosões tipo-III decimétricas, dentro da faixa de 2050-2250 MHz com alta resolução temporal (20 ms), em 13 de setembro de 2001, entre 13:00 e 16:10 UT. Foram selecionadas 10 explosões isoladas para uma investigação estatística detalhada de seus perfís temporais, em todos os cerca de 50 canais de freqüência. Os resultados indicam que cerca de 70% dos perfís temporais são complexos tanto durante a subida quanto descida. Os 30% restantes indicam que os perfís da subida podem ser bem representados, na maioria dos casos, por um processo não-linear e uma parcela significativa por processos lineares. Os perfís temporais da descida são dominados por um decaimento não-linear. Neste trabalho, será efetuada uma análise dos perfís temporais, tanto durante a subida quanto descida do fluxo, para as explosões selecionadas, em termos dos prováveis mecanismos de aceleração e relaxamento. 2

Cecatto, J. R.; Fernandes, F. C. R.; Sawant, H. S.; Madsen, F. R. H.

2003-08-01

98

FlexyDos3D: a deformable anthropomorphic 3D radiation dosimeter: radiation properties  

NASA Astrophysics Data System (ADS)

Three dimensional radiation dosimetry has received growing interest with the implementation of highly conformal radiotherapy treatments. The radiotherapy community faces new challenges with the commissioning of image guided and image gated radiotherapy treatments (IGRT) and deformable image registration software. A new three dimensional anthropomorphically shaped flexible dosimeter, further called ‘FlexyDos3D’, has been constructed and a new fast optical scanning method has been implemented that enables scanning of irregular shaped dosimeters. The FlexyDos3D phantom can be actuated and deformed during the actual treatment. FlexyDos3D offers the additional advantage that it is easy to fabricate, is non-toxic and can be molded in an arbitrary shape with high geometrical precision. The dosimeter formulation has been optimized in terms of dose sensitivity. The influence of the casting material and oxygen concentration has also been investigated. The radiophysical properties of this new dosimeter are discussed including stability, spatial integrity, temperature dependence of the dosimeter during radiation, readout and storage, dose rate dependence and tissue equivalence. The first authors Y De Deene and P S Skyt made an equivalent contribution to the experimental work presented in this paper.

De Deene, Y.; Skyt, P. S.; Hil, R.; Booth, J. T.

2015-02-01

99

FlexyDos3D: a deformable anthropomorphic 3D radiation dosimeter: radiation properties.  

PubMed

Three dimensional radiation dosimetry has received growing interest with the implementation of highly conformal radiotherapy treatments. The radiotherapy community faces new challenges with the commissioning of image guided and image gated radiotherapy treatments (IGRT) and deformable image registration software.A new three dimensional anthropomorphically shaped flexible dosimeter, further called 'FlexyDos3D', has been constructed and a new fast optical scanning method has been implemented that enables scanning of irregular shaped dosimeters. The FlexyDos3D phantom can be actuated and deformed during the actual treatment. FlexyDos3D offers the additional advantage that it is easy to fabricate, is non-toxic and can be molded in an arbitrary shape with high geometrical precision.The dosimeter formulation has been optimized in terms of dose sensitivity. The influence of the casting material and oxygen concentration has also been investigated. The radiophysical properties of this new dosimeter are discussed including stability, spatial integrity, temperature dependence of the dosimeter during radiation, readout and storage, dose rate dependence and tissue equivalence. PMID:25615261

De Deene, Y; Skyt, P S; Hil, R; Booth, J T

2015-02-21

100

A Influência da Escola e da Mídia na Obtenção dos Conhecimentos Astronômicos  

NASA Astrophysics Data System (ADS)

O universo em que vivemos possui segredos jamais imaginados pelo homem, fruto da pequena proporção que ocupamos diante de um cosmos infinito. A astronomia funciona como um instrumento que sacia a sede humana em desvendar esses segredos, estudando as galáxias, quasares, pulsares além da existência de todos os elementos que preenchem o espaço cósmico, o vácuo, não mais vazio como se pensou em outros tempos. A mídia explora esse campo de forma mística e também científica. A difusão adequada e dentro dos padrões educacionais vigentes, de conceitos astronômicos, se faz necessária, devido sua presença nos conteúdos escolares, centros de ciência e na mídia, de modo geral. A reforma do Currículo Básico da Escola Pública da maioria dos Estados brasileiros introduziu conceitos astronômicos desde a pré-escola até o Ensino Médio. Num estudo realizado com 1.032 alunos do Ensino Médio de seis escolas estaduais, revelou-se através da aplicação de um questionário que abordava conheciment os básicos em astronomia, como estes foram adquiridos e qual era a infra-estrutura oferecida pela escola: para 66,2% dos entrevistados o professor já fez alguma apresentação a respeito de astronomia. O presente estudo revelou também que 44,5% dos alunos entrevistados adquiriram seus conhecimentos astronômicos na escola, 28,1% através da televisão e 27,4% afirmaram que seus conhecimentos foram obtidos através de outros tipos de mídia (internet, filmes e revistas). Embora o estudo revele claramente que há certo equilíbrio na forma em que os alunos obtiveram seus conhecimentos astronômicos, a mídia ainda explora e muitas vezes desperta o interesse pela astronomia com assuntos que não fazem parte de nosso cotidiano como, por exemplo, o homem na Lua, os projetos espaciais e a primeira viagem de um astronauta brasileiro no espaço. Porém, em certos casos, a mídia pode promover conhecimentos incompletos ou mesmo equivocados sobre os conceitos que envolvam a astronomia, como por exemplo a propagação do som no vácuo observado na maioria dos filmes de f icção científica ou da existência das estações do ano em função da distância da Terra ao Sol, em conformidade com o questionário aplicado.

da Cunha, W. S.; Voelzke, M. R.; Amaral, L. H.

2006-08-01

101

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, 2011 CFR

... Procedures for the Department of State (DoS) Foreign Relations of the United States (FRUS) Series C... National Defense Department of Defense (Continued...Procedures for the Department of State (DoS) Foreign...

2011-07-01

102

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, 2012 CFR

... Procedures for the Department of State (DoS) Foreign Relations of the United States (FRUS) Series C... National Defense Department of Defense (Continued...Procedures for the Department of State (DoS) Foreign...

2012-07-01

103

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, 2014 CFR

... Procedures for the Department of State (DoS) Foreign Relations of the United States (FRUS) Series C... National Defense Department of Defense (Continued...Procedures for the Department of State (DoS) Foreign...

2014-07-01

104

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

... Procedures for the Department of State (DoS) Foreign Relations of the United States (FRUS) Series C... National Defense Department of Defense (Continued...Procedures for the Department of State (DoS) Foreign...

2013-07-01

105

DoS detection in IEEE 802.11 with the presence of hidden nodes.  

PubMed

The paper presents a novel technique to detect Denial of Service (DoS) attacks applied by misbehaving nodes in wireless networks with the presence of hidden nodes employing the widely used IEEE 802.11 Distributed Coordination Function (DCF) protocols described in the IEEE standard [1]. Attacker nodes alter the IEEE 802.11 DCF firmware to illicitly capture the channel via elevating the probability of the average number of packets transmitted successfully using up the bandwidth share of the innocent nodes that follow the protocol standards. We obtained the theoretical network throughput by solving two-dimensional Markov Chain model as described by Bianchi [2], and Liu and Saadawi [3] to determine the channel capacity. We validated the results obtained via the theoretical computations with the results obtained by OPNET simulator [4] to define the baseline for the average attainable throughput in the channel under standard conditions where all nodes follow the standards. The main goal of the DoS attacker is to prevent the innocent nodes from accessing the channel and by capturing the channel's bandwidth. In addition, the attacker strives to appear as an innocent node that follows the standards. The protocol resides in every node to enable each node to police other nodes in its immediate wireless coverage area. All innocent nodes are able to detect and identify the DoS attacker in its wireless coverage area. We applied the protocol to two Physical Layer technologies: Direct Sequence Spread Spectrum (DSSS) and Frequency Hopping Spread Spectrum (FHSS) and the results are presented to validate the algorithm. PMID:25685510

Soryal, Joseph; Liu, Xijie; Saadawi, Tarek

2014-07-01

106

DoS detection in IEEE 802.11 with the presence of hidden nodes  

PubMed Central

The paper presents a novel technique to detect Denial of Service (DoS) attacks applied by misbehaving nodes in wireless networks with the presence of hidden nodes employing the widely used IEEE 802.11 Distributed Coordination Function (DCF) protocols described in the IEEE standard [1]. Attacker nodes alter the IEEE 802.11 DCF firmware to illicitly capture the channel via elevating the probability of the average number of packets transmitted successfully using up the bandwidth share of the innocent nodes that follow the protocol standards. We obtained the theoretical network throughput by solving two-dimensional Markov Chain model as described by Bianchi [2], and Liu and Saadawi [3] to determine the channel capacity. We validated the results obtained via the theoretical computations with the results obtained by OPNET simulator [4] to define the baseline for the average attainable throughput in the channel under standard conditions where all nodes follow the standards. The main goal of the DoS attacker is to prevent the innocent nodes from accessing the channel and by capturing the channel’s bandwidth. In addition, the attacker strives to appear as an innocent node that follows the standards. The protocol resides in every node to enable each node to police other nodes in its immediate wireless coverage area. All innocent nodes are able to detect and identify the DoS attacker in its wireless coverage area. We applied the protocol to two Physical Layer technologies: Direct Sequence Spread Spectrum (DSSS) and Frequency Hopping Spread Spectrum (FHSS) and the results are presented to validate the algorithm. PMID:25685510

Soryal, Joseph; Liu, Xijie; Saadawi, Tarek

2013-01-01

107

76 FR 25733 - 60-Day Notice of Proposed Information Collection: DS-7001 and DS-7005, DOS-Sponsored Academic...  

Federal Register 2010, 2011, 2012, 2013, 2014

...Collection: DOS-Sponsored Academic Exchange Program Application...Respondents: Applicants for the Academic Exchange Program. Estimated...is necessary for the proper performance of our functions. Evaluate...sponsored by the Office of Academic Exchange Programs....

2011-05-05

108

A Bayesian Change point model for differential gene expression patterns of the DosR regulon of Mycobacterium tuberculosis  

E-print Network

Abstract Background Low oxygen availability has been shown previously to stimulate M. tuberculosis to establish non-replicative persistence in vitro. The two component sensor/regulator dosRS is a major mediator in the transcriptional response of M...

Zhang, Yi; Hatch, Kim A; Wernisch, Lorenz; Bacon, Joanna

2008-02-22

109

OptaDOS: A tool for obtaining density of states, core-level and optical spectra from electronic structure codes  

NASA Astrophysics Data System (ADS)

We present OptaDOS, a program for calculating core-electron and low-loss electron energy loss spectra (EELS) and optical spectra along with total-, projected- and joint-density of electronic states (DOS) from single-particle eigenenergies and dipole transition coefficients. Energy-loss spectroscopy is an important tool for probing bonding within a material. Interpreting these spectra can be aided by first principles calculations. The spectra are generated from the eigenenergies through integration over the Brillouin zone. An important feature of this code is that this integration is performed using a choice of adaptive or linear extrapolation broadening methods which we show produces higher accuracy spectra than standard fixed-width Gaussian broadening. OptaDOS may be straightforwardly interfaced to any electronic structure code. OptaDOS is freely available under the GNU General Public licence from http://www.optados.org.

Morris, Andrew J.; Nicholls, Rebecca J.; Pickard, Chris J.; Yates, Jonathan R.

2014-05-01

110

Volcanic and structural controls of mineralization in the Dos Cabezas Mountains of southeastern Arizona  

SciTech Connect

A combination of geophysical, geochemical, and geological features suggests that a central part of the Dos Cabezas Mountains probably has considerable potential for blind deposits, chiefly base metals. The area exposes the root zone of a Paleocene( ) volcanic complex and its underlying granitic stocks, which were emplaced next to a major northwest-trending, much reactivated fault zone. The new data, combined with the knowledge of past mining activity in the area, lead them to propose several exploration targets that may lead to ore bodies in breccia pipes along the base of the volcanic pile and along a possible concealed fault or caldera margin.

Drewes, H.; Klein, D.P.; Birmingham, S.D.

1988-01-01

111

Studies of Brazilian meteorites. III - Origin and history of the Angra dos Reis achondrite  

NASA Technical Reports Server (NTRS)

The mineral composition of the Angra dos Reis meteorite, which fell in 1869, is described. This achondrite contains phases reported in a meteorite for the first time. Petrofabric analysis shows that fassaite has a preferred orientation and lineation, which is interpreted as being due to cumulus processes, possibly the effect of post-depositional magmatic current flow or laminar flow of a crystalline mush. The mineral chemistry indicates crystallization from a highly silica-undersaturated melt at low pressure. Several aspects of the mineral composition are discussed with reference to the implications of crystallization conditions.

Prinz, M.; Keil, K.; Hlava, P. F.; Berkley, J. L.; Gomes, C. B.; Curvello, W. S.

1977-01-01

112

Use of Remote Sensing and Local Knowledge for Geoconservation of Regiao dos Lagos, Brazil  

NASA Astrophysics Data System (ADS)

A series of lagoons can be found along the coastline of Rio de Janeiro, in the so-called Regiao dos Lagos. The lagoons differ in size, physicochemical, sedimentological and biological characteristics. Rare examples of litifying microbialites that produce stromatolites, the oldest fossils on Earth, can be found living in this lagoon system. The occurrence of stromatolites in the region is of great scientific interest because it enables the study of possible analogues of the earliest life on Earth. However, this region has been suffering from intense human activities and degradations. Geoconservation planning requires an assessment of the characteristics of the region and its potential threats. The primary goal of this study is to assess physical environmental changes and anthropogenic impacts over the last four decades in Regiao dos Lagos. Using a broad integrative assessment combining remote sensing, GIS, field studies and local knowledge of communities, land-cover and land-use classes were identified, as well as the main human activities impacting the environment. The seasonal and weekend tourism and urban sprawl in this coastal area of Rio de Janeiro triggers the occupation of new areas and the removal of natural vegetation, especially on lagoon margins. This disorderly occupation by an ever increasing population, with both legal and illegal constructions and the subsequent overload of the local infrastructure, e.g. increase of electrical energy consumption, volume of vehicles, pollution in air, water and soil and problems with water supply and wastewater treatment, are hastening the gradual degradation of the lake ecosystem. The main driving forces to environmental changes over the last four decades in Regiao dos Lagos were the change of dense vegetation, saline and bare soil classes into built-up areas, adding to the poor waste treatment and inadequate sewage disposal. This analysis provides a basis for a better control of anthropogenic impacts and geoconservation activities of the ';Geopark Costoes e Lagunas do Rio de Janeiro', which includes Regiao dos Lagos. The goals of the geopark are the conservation of a healthy environment, education in the Earth sciences and the fostering of local, sustainable economic development. It is essential that the local government and population support the geoconservation work and are involved in the planning and implementation of activities. The local knowledge about natural, cultural and economical particularities of the region and awareness on environmental issues are taken into consideration, in order to assist the development of specific geoconservation activities according to community needs.

Avelar, S.; Vasconcelos, G.; Mansur, K. L.; Anjos, S. C.

2013-12-01

113

John Dos Passos' theme of individual freedom in American society in the novel Midcentury  

E-print Network

. icated his disgust for the military way of life in which the individual was regarded only as a machine to do work or an animal to be slaughtered. During the twenties Dos passos was greatly' influenced by Marxism, although he neve- became e. Communist... Party member. He worked with the Communists in the United States, notably, in a theatrical venture in New York City, and in 1928 he traveled to the Soviet Union to see for himself the results of the socialist revolution. During the early 1930's he...

Rundt, Antoinette Hasselbach

1967-01-01

114

Normas provisionais para a instrucin e resolucin dos expedientes disciplinarios abertos a estudantes da UDC (aprobadas no Consello de  

E-print Network

ámbitos da actividade administrativa das Universidades onde a inseguridade xurídica é maior é no campo do procedemento disciplinario dos estudantes. Ainda hoxe, trinta e tres anos despois da aprobación da Constitución ano1 . Entrementres, a tipificación de infraccións e sancións, así como a tramitación dos expedientes

Fraguela, Basilio B.

115

A Evoluo dos Computadores: do ENIAC ao Siang Wun Song -IME/USP e Universidade Federal do ABC  

E-print Network

A Evolução dos Computadores: do ENIAC ao Jaguar Siang Wun Song - IME/USP e Universidade Federal do ABC setembro de 2010 Siang Wun Song - IME/USP e Universidade Federal do ABCA Evolução dos Computadores.C.) Ábaco romano (1.o século D.C.) Source: Museo Nazionale Romano Siang Wun Song - IME/USP e Universidade

Song, Siang Wun

116

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.

2010-02-01

117

Reproductive Dynamics of Sterna hirundinacea Lesson, 1831 in Ilha dos Cardos, Santa Catarina, Brazil.  

PubMed

In this work, we intend to describe the reproductive dynamics of Sterna hirundinacea in an island from South Brazil. We studied the reproductive biology of this species in its natural environment and provide data on their growth, survival, and reproductive success in Ilha dos Cardos, Santa Catarina, South Brazil. Samplings were carried out daily on the island throughout the reproductive seasons of 2003, 2005, and 2006 and the different stages of development of the chicks were characterized according to age, length of the beak, and plumage characteristics. We provide a basic equation Lm = 167.91?(1 - e (-0.062t-(-0.23))) to determine the approximate age of individuals using their body mass. The main cause of chick mortality on the island was natural (63.17% in 2003, 81.41% in 2005, and 79.96% in 2006), whereas predation contributed to mortality in a proportion of 38.83% in 2003, 18.59% in 2005, and 20.04% in 2006. The absence in the area of the chicks' main predator, Kelp gull (Larus dominicanus), the large number of chicks that reached the final stages of development, and their reproductive success demonstrate that Ilha dos Cardos is an important breeding site for the species in southern Brazil. PMID:24977100

Fracasso, Hélio Augusto Alves; Branco, Joaquim Olinto; Efe, Márcio Amorim; Barreiros, João Pedro

2014-01-01

118

Electron spin resonance dating of megafauna from Lagoa dos Porcos, Piauí, Brazil.  

PubMed

Excavations performed at Lagoa dos Porcos site revealed a vast amount of extinct mammal fossil remains, becoming one of the richest palaeontological occurrences in the Serra da Capivara National Park region, a UNESCO World Heritage. Although anatomic and taxonomic aspects of extinct Quaternary mammals are relatively well known, chronologic information for deposits is rare. In this context, electron spin resonance (ESR) dating of megafauna samples provides important information for establishing a chronological background. This work presents the ESR dating of two teeth, one of Gomphotheriidae and other of Toxodontinae. Dose-response curves of each sample were constructed using spectra acquired with a JEOL FA-200 X-Band spectrometer resulting in equivalent dose (De) of 220 ± 40 Gy and 39 ± 2 Gy for Toxodontinae and Gomphotheriidae tooth, respectively. The conversion of De in age was made using ROSY ESR dating software resulting in 26 ± 4 and 22 ± 3 ka. These results place Lagoa dos Porcos fossil assemblage within the Late Pleistocene. These dates overlap with a period of abrupt increase in rainfall in northeast Brazil, and it is possible that this environmental change is related to the formation of this deposit. PMID:24891406

Kinoshita, Angela; Mayer, Elver; Ribau Mendes, Vinícius; Figueiredo, Ana Maria G; Baffa, Oswaldo

2014-06-01

119

RighTime: A real time clock correcting program for MS-DOS-based computer systems  

NASA Technical Reports Server (NTRS)

A computer program is described which effectively eliminates the misgivings of the DOS system clock in PC/AT-class computers. RighTime is a small, sophisticated memory-resident program that automatically corrects both the DOS system clock and the hardware 'CMOS' real time clock (RTC) in real time. RighTime learns what corrections are required without operator interaction beyond the occasional accurate time set. Both warm (power on) and cool (power off) errors are corrected, usually yielding better than one part per million accuracy in the typical desktop computer with no additional hardware, and RighTime increases the system clock resolution from approximately 0.0549 second to 0.01 second. Program tools are also available which allow visualization of RighTime's actions, verification of its performance, display of its history log, and which provide data for graphing of the system clock behavior. The program has found application in a wide variety of industries, including astronomy, satellite tracking, communications, broadcasting, transportation, public utilities, manufacturing, medicine, and the military.

Becker, G. Thomas

1993-01-01

120

Reproductive Dynamics of Sterna hirundinacea Lesson, 1831 in Ilha dos Cardos, Santa Catarina, Brazil  

PubMed Central

In this work, we intend to describe the reproductive dynamics of Sterna hirundinacea in an island from South Brazil. We studied the reproductive biology of this species in its natural environment and provide data on their growth, survival, and reproductive success in Ilha dos Cardos, Santa Catarina, South Brazil. Samplings were carried out daily on the island throughout the reproductive seasons of 2003, 2005, and 2006 and the different stages of development of the chicks were characterized according to age, length of the beak, and plumage characteristics. We provide a basic equation Lm = 167.91?(1 ? e?0.062t?(?0.23)) to determine the approximate age of individuals using their body mass. The main cause of chick mortality on the island was natural (63.17% in 2003, 81.41% in 2005, and 79.96% in 2006), whereas predation contributed to mortality in a proportion of 38.83% in 2003, 18.59% in 2005, and 20.04% in 2006. The absence in the area of the chicks' main predator, Kelp gull (Larus dominicanus), the large number of chicks that reached the final stages of development, and their reproductive success demonstrate that Ilha dos Cardos is an important breeding site for the species in southern Brazil. PMID:24977100

Fracasso, Hélio Augusto Alves; Branco, Joaquim Olinto; Efe, Márcio Amorim

2014-01-01

121

Maize rayado fino virus-like particles expressed in tobacco plants: a new platform for cysteine selective bioconjugation peptide display  

Technology Transfer Automated Retrieval System (TEKTRAN)

The ability of plant virus coat proteins to self-assemble into virus-like particles (VLPs), coupled with unique properties including three-dimensional structures, orthogonal reactivities, suitability for genetic manipulation and chemical bio-conjugation, provide potential utility in nanotechnology a...

122

A laboratory screening technique for evaluating the reaction of selected maize cultivars (Zea mays L.) to maize rayado fino virus  

E-print Network

, 5 days at 25 C in the vector before it can be transmitted to healthy plants (9). Inoculation of test plants then occurs after a minimum of 8 hr of feed. 'ng by the infective leafhoppers. As the temperature is increased from 20 to 30 C... adults on sweet corn seedlings for approximately one week and then growing the seedlings to maturity in a greenhouse. The plants were observed for disease symptoms with negative results. The leafhopper population was also confirmed to be free of virus...

Skinner, Glenn Earl

1979-01-01

123

CRL4-like Clr4 complex in Schizosaccharomyces pombe depends on an exposed surface of Dos1 for heterochromatin silencing  

PubMed Central

Repressive histone H3 lysine 9 methylation (H3K9me) and its recognition by HP1 proteins are necessary for pericentromeric heterochromatin formation. In Schizosaccharomyces pombe, H3K9me deposition depends on the RNAi pathway. Cryptic loci regulator 4 (Clr4), the only known H3K9 methyltransferase in this organism, is a subunit of the Clr4 methyltransferase complex (CLRC), whose composition is reminiscent of a CRL4 type cullin-RING ubiquitin ligase (CRL) including its cullin Cul4, the RING-box protein Pip1, the DNA damage binding protein 1 homolog Rik1, and the DCAF-like protein delocalization of Swi6 1 (Dos1). Dos2 and Stc1 have been proposed to be part of the complex but do not bear similarity to canonical ubiquitin ligase components. CLRC is an active E3 ligase in vitro, and this activity is necessary for heterochromatin assembly in vivo. The similarity between CLRC and the CRLs suggests that the WD repeat protein Dos1 will act to mediate target recognition and substrate specificity for CLRC. Here, we present a pairwise interaction screen that confirms a CRL4-like subunit arrangement and further identifies Dos2 as a central component of the complex and recruiter of Stc1. We determined the crystal structure of the Dos1 WD repeat domain, revealing an eight-bladed ?-propeller fold. Functional mapping of the putative target-binding surface of Dos1 identifies key residues required for heterochromatic silencing, consistent with Dos1’s role as the specificity factor for the E3 ubiquitin ligase. PMID:24449894

Kuscu, Canan; Zaratiegui, Mikel; Kim, Hyun Soo; Wah, David A.; Martienssen, Robert A.; Schalch, Thomas; Joshua-Tor, Leemor

2014-01-01

124

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.

2009-05-26

125

Caracteristicas de la Instruccion Programada como Tecnica de Ensenanza (Characteristics of Programed Instruction as a Teaching Technique).  

ERIC Educational Resources Information Center

This discussion of programed instruction begins with the fundamental psychological aspects and learning theories behind this teaching method. Negative and positive reinforcement, conditioning, and their relationship to programed instruction are considered. Different types of programs, both linear and branching, are discussed; criticism of the…

Dorrego, Maria Elena

126

Modos de produccion cientifica: Culturas y metodologias de investigacion en la Universidad de Cadiz  

NASA Astrophysics Data System (ADS)

Este trabajo de investigacion supone un modelo teorico de caracter aplicado, que proporciona la oportunidad de evaluar la produccion cientifica de los investigadores. Se encuadra dentro de la tradiccion de la estadistica aplicada y la sociologia del conocimiento. Atiende especialmente a dos conjuntos de temas de interes, por una parte, las caracteristicas principales que determinan el nivel y tipo de produccion academica producida por las unidades de investigacion y por los propios investigadores; por otra, la utilizacion que se hace de los metodos y tecnicas de investigacion puesto que de ello tambien depende el modo de produccion cientifica. Los puntos novedosos de esta tesis son: la medicion cuantitativa del objeto de estudio, la suma de los productos y las condiciones externas a la produccion del conocimiento mas otros elementos internos como las caracteristicas de los investigadores y la metodologia utilizada para desarrollar sus trabajos; y, finalmente, el uso de las nuevas tecnologias. El aprovechamiento de los recursos estadisticos y las fuentes de informacion secundarias se complementan con el diseno propio de una encuesta donde se implementa las caracteristicas descritas en un capitulo anterior sobre los metodos cientificos mas idoneos descritos en los principales manuales y articulos cientificos desde distintas disciplinas de conocimiento. Dicha encuesta ha sido desarrollada como un programa propio y en base a los mas innovadores usos de la tecnologia en la metodologia de encuestas.

Gonzalez Ramos, Ana M.

2004-12-01

127

Development and evaluation of a driving observation schedule (DOS) to study everyday driving performance of older drivers.  

PubMed

This paper describes the development and evaluation of an on-road procedure, the Driving Observation Schedule (DOS), for monitoring individual driving behavior. DOS was developed for use in the Candrive/Ozcandrive five-year prospective study of older drivers. Key features included observations in drivers' own vehicles, in familiar environments chosen by the driver, with start/end points at their own homes. Participants were 33 drivers aged 75+ years, who drove their selected route with observations recorded during intersection negotiation, lane-changing, merging, low speed maneuvers and maneuver-free driving. Driving behaviors were scored by a specialist occupational therapy driving assessor and another trained observer. Drivers also completed a post-drive survey about the acceptability of DOS. Vehicle position, speed, distance and specific roadways traveled were recorded by an in-vehicle device installed in the participant's vehicle; this device was also used to monitor participants' driving over several months, allowing comparison of DOS trips with their everyday driving. Inter-rater reliability and DOS feasibility, acceptability and ecological validity are reported here. On average, drivers completed the DOS trip in 30.48min (SD=7.99). Inter-rater reliability measures indicated strong agreement between the trained and the expert observers: intra-class correlations (ICC)=0.905, CI 95% 0.747-0.965, p<0.0001; Pearson product correlation, r (18)=.83, p<0.05. Standard error of the measurement (SEM), method error (ME) and coefficient of variation (CV) measures were consistently small (3.0, 2.9 & 3.3%, respectively). Most participants reported being 'completely at ease' (82%) with the driving task and 'highly familiar with the route' (97%). Vehicle data showed that DOS trips were similar to participants' everyday driving trips in roads used, roadway speed limits, drivers' average speed and speed limit compliance. In summary, preliminary findings suggest that DOS can be scored reliably, is of feasible duration, is acceptable to drivers and representative of everyday driving. Pending further research with a larger sample and other observers, DOS holds promise as a means of quantifying and monitoring changes in older drivers' performance in environments typical of their everyday driving. PMID:23639887

Vlahodimitrakou, Z; Charlton, J L; Langford, J; Koppel, S; Di Stefano, M; Macdonald, W; Mazer, B; Gelinas, I; Vrkljan, B; Porter, M M; Smith, G A; Cull, A W; Marshall, S

2013-12-01

128

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

NASA Astrophysics Data System (ADS)

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, U, Ca, and Ti were measured to allow a detailed appraisal to be made of the relations between, and the geneology of, these two angrites. LEW proves to be severely contaminated with modern terrestrial Pb, which is shown to result from terrestrial weathering. Concordant Pb-Pb model ages of pyroxene separates are obtained; uranium isotopic compositions are normal within error. Overall, striking age and isotopic similarities between LEW and ADOR were found, suggesting almost simultaneous production on the same asteroid, even though recent experimental studies imply that the two are not comagmatic.

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

1992-04-01

129

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

NASA Technical Reports Server (NTRS)

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 of the Nd isotopes in phosphates. The effect of Pu-244 on the fission xenon components in pyroxene and phosphate is examined. The ratios of Pu-244 to Nd, U-238, and Th-232 are compared for pyroxene and phosphate separates. The exposure age of the meteorite, as obtained by the Kr-81 to Kr-83 method, was found to be 55.5 plus or minus 1.2 million years.

Lugmair, G. W.; Marti, K.

1977-01-01

130

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

NASA Technical Reports Server (NTRS)

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, U, Ca, and Ti were measured to allow a detailed appraisal to be made of the relations between, and the geneology of, these two angrites. LEW proves to be severely contaminated with modern terrestrial Pb, which is shown to result from terrestrial weathering. Concordant Pb-Pb model ages of pyroxene separates are obtained; uranium isotopic compositions are normal within error. Overall, striking age and isotopic similarities between LEW and ADOR were found, suggesting almost simultaneous production on the same asteroid, even though recent experimental studies imply that the two are not comagmatic.

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

1992-01-01

131

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

NASA Technical Reports Server (NTRS)

Measurements of the oxygen fugacity, f(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(O2)-T relationship of the iron-wustite assemblage and 1.2 log atm units above iron-wustite. Interpretation of the data indicates that, throughout most of the cooling history of the meteorite, f(O2) values were defined by equilibria involving iron-bearing species at values close to the f(O2) of the assemblage iron-wustite. Measured f(O2) data are compatible with crystallization and cooling at pressures greater than 50 bars.

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

1977-01-01

132

On securing wireless sensor network--novel authentication scheme against DOS attacks.  

PubMed

Wireless sensor networks are generally deployed for collecting data from various environments. Several applications specific sensor network cryptography algorithms have been proposed in research. However WSN's has many constrictions, including low computation capability, less memory, limited energy resources, vulnerability to physical capture, which enforce unique security challenges needs to make a lot of improvements. This paper presents a novel security mechanism and algorithm for wireless sensor network security and also an application of this algorithm. The proposed scheme is given to strong authentication against Denial of Service Attacks (DOS). The scheme is simulated using network simulator2 (NS2). Then this scheme is analyzed based on the network packet delivery ratio and found that throughput has improved. PMID:25106827

Raja, K Nirmal; Beno, M Marsaline

2014-10-01

133

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.

1989-09-07

134

The Secret List of Dos and Don'ts for Filmmaking  

NASA Astrophysics Data System (ADS)

Science is a massive black box to billions of people who walk the streets. However, the process of filmmaking can be equally as mystifying. As with the development of many scientific experiments, the process starts on a napkin at a restaurant…but then what? The road to scientific publication is propelled by a canonical list of several dos and don't that fit most situations. An equally useful list exists for up-and-coming producers. The list streamlines efforts, optimizes your use of the tools at your fingertips and enhances impact. Many fundamentals can be learned from books, but during this talk we will project and discuss several examples of best practices, from honing a story, to identifying audience appeal, filming, editing and the secrets of inexpensively acquiring expert help. Whether your goal is a two-minute webisode or a 90 minute documentary, these time-tested practices, with a little awareness, can give life to your films.;

Kramer, N.

2012-12-01

135

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.

1977-01-01

136

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. PMID:19276084

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

2009-01-01

137

TRIBUNAL REGIONAL FEDERAL DA 1 REGIO Edital de divulgao de Sesso Pblica para julgamento dos recursos interpostos da 1  

E-print Network

TRIBUNAL REGIONAL FEDERAL DA 1ª REGIÃO Edital de divulgação de Sessão Pública para julgamento dos de Juiz Federal Substituto da 1ª Região O Presidente da Comissão do XIV Concurso Público para Provimento de Cargo de Juiz Federal Substituto da 1ª Região, no uso de suas atribuições, comunica que

Maier, Rudolf Richard

138

Mamíferos terrestres e aves da Terra Indígena Sapukai (Aldeia Guarani do Bracui), Angra dos Reis, RJ, Brasil  

Microsoft Academic Search

Terrestrial mammals and birds of Sapukai Indigenous Area (Aldeia Guarani do Bracui), Angra dos Reis, RJ, Brazil. Species composition and distribution in the Brazilian Atlantic Forest are still poorly known, although the area has been studied by naturalists since the 16th century. The Serra do Mar region between the states of São Paulo and Rio de Janeiro concentrates one of

André A. Cunha; Henrique Rajão

139

Rv3133c/dosR is a transcription factor that mediates the hypoxic response of M. tuberculosis  

E-print Network

1 Rv3133c/dosR is a transcription factor that mediates the hypoxic response of M. tuberculosis Heui tuberculosis can persist for years within humans in a clinically latent state. Latency is often linked to hypoxic conditions within the host. Among M. tuberculosis genes induced by hypoxia is a putative

Tompa, Martin

140

Avaliação de permeabilidade dentinária relacionada à dinâmica de substituição das substâncias químicas auxiliares do preparo dos canais radiculares  

Microsoft Academic Search

RESUMO As substâncias químicas auxiliares do preparo biomecânico dos canais radiculares devem atuar sobre a permeabilidade dentinária no decorrer da terapêutica endodôntica. O objetivo desse experi- mento foi comparar a variação de permeabilidade provocada pela associação Dakin + Endo PTC, segundo a dinâmica de substituições distintas de substância química, pela avaliação de infiltração de corante indicador. Foram utilizadas 30 raízes

ELIANA BARBOSA DE SOUZA; CRYSTIANE VENDITI GOMES DE AMORIM; JOSE LUIZ LAGE-MARQUES

141

A COBRANÇA PELO USO DA ÁGUA NAS BACIAS DOS RIOS PARAÍBA DO SUL E PCJ EM 2006: avaliação e evolução  

Microsoft Academic Search

RESUMO --- A Lei federal 9.433\\/97 instituiu a Política Nacional de Recursos Hídricos, com fundamentos na gestão descentralizada e participativa, tendo como unidade territorial de planejamento a bacia hidrográfica. A cobrança pelo uso da água é um dos instrumentos previstos para execução da política, cabendo ao Comitê da Bacia estabelecer os mecanismos de cobrança e sugerir os valores. O artigo

Giordano Bruno; Moema Versiani Acselrad; Patrick Thadeu Thomas

142

Actividades de Inovação e a Capacidade Inovadora das Empresas Portuguesas: Evidências Empíricas ao Nível do sector dos Serviços  

Microsoft Academic Search

Esta investigação visa analisar o grau de importância das actividades de inovação na capacidade inovadora empresarial, no âmbito das empresas de serviços portuguesas. A revisão da literatura considera três abordagens fundamentais ao nível da inovação dos serviços: assimilação, demarcação e síntese. Adicionalmente, apresenta-se a abordagem sistémica com o objectivo de identificar os principais determinantes da inovação, ao nível das actividades

Maria José Silva; Gastão Sousa e Jacinta Moreira

2010-01-01

143

Environmental discrimination among soft-bottom mollusc associations off Lagoa dos Patos, South Brazil  

NASA Astrophysics Data System (ADS)

Sublittoral benthic molluscs established in the outlet of Lagoa dos Patos (South Brazil) were sampled with a rectangular dredge and the malacological associations delineated by cluster analysis (WPGA) using the Baroni-Urbani and Buser similarity index. Three main associations were characterized in bands parallel to the beach with relative concordance with specific sedimentological facies. The multiple discriminant analysis showed that there was a high correlation between these associations and the following environmental parameters: depth, average grain size, skewness of the sediment, medium sand, coarse sand, total sand and total mud. The effect of reducing the multidimensionality of the data to two factors, ecologically explained, brings out the importance of depth, average grain size, total sand and total mud. The first appears to be a bathymetric gradient of stability/disturbance; the disturbance from storms becomes less frequent with increasing depth. This is partially supported by the results of the Caswell neutral model, and is in agreement with the intermediate disturbance hypothesis predictions. The second sedimentological factor is the relative percentages of sand and mud in determining the specific composition of these associations.

Absalão, R. S.

1991-01-01

144

Open Cluster Radial Velocity determination from observations at Observatório Pico Dos Dias  

NASA Astrophysics Data System (ADS)

In studies of the dynamics of the Galactic disk, such as the determination of the speed of the spiral pattern and the permanence of stars in the spiral arms, it is crucial to know orbits obtained from proper motions, radial velocities and the potential of the Galaxy. Aiming to improve the statistics of our catalog of open clusters, maintained by our research group, we determined the radial velocity of stars belonging to a group of open clusters using spectra with a resolution of 4000, obtained at the Pico dos Dias Observatory (LNA) with the 1.60 m telescope and the Coudé spectrograph. We observed the open cluster's member stars and calculated their radial speeds using standard techniques. The stars were selected from our own database based on relevant information concerning the clusters, obtained by statistical analysis of their proper motions and/or their position in the HR's diagram. In this work, we present the detailed analysis of the data reduction and radial velocity determination using synthetic spectra from different libraries. Finally we present the open cluster's radial (and spacial) velocities.

Faria, M. A. F.; Monteiro, H.; Dias, W. S.; Lépine, J. R. D.

2014-10-01

145

Creating a Global Fiducials Program (GFP) Site: Lago Cachet Dos example in Chile  

NASA Astrophysics Data System (ADS)

The USGS has been acquiring remotely sensed imagery from all over the world, collecting thousands of images at more than 200 sites, and creating Literal Image Derived Products (LIDPs) as part of the Global Fiducials Program (GFP). The GFP program enables scientists to use these images to study our rapidly changing planet at carefully selected locations around the world. New GFP Sites are created and added each year. Researchers at the University of Alaska, for instance, added areas susceptible to coastal erosion for monitoring the long-term effects of high tides and storms. This presentation will guide you through the process of creating a new GFP site for your area of interest. We will describe the components of the GFP and its archive, the Global Fiducials Library. The Global Fiducials Program—Initial Site Proposal form will be presented and we will show you how to complete each component in order to propose a new site. Lago Cachet Dos, a glacier-dammed lake in southern Chile, is currently being proposed as a new GFP site and will be used as the example for this exercise. In addition, USGS web sites will be used to illustrate how a long-term imagery record can tell a story and to demonstrate viewing and downloading the type of data that will be available online and free of charge through the GFP.

Friesen, B. A.; Nimick, D. A.; Wilson, E. M.

2012-12-01

146

Nature of the displaceable heme-axial residue in the EcDos protein, a heme-based sensor from Escherichia coli.  

PubMed

The EcDos protein belongs to a group of heme-based sensors that detect their ligands with a heme-binding PAS domain. Among these various heme-PAS proteins, EcDos is unique in having its heme iron coordinated at both axial positions to residues of the protein. To achieve its high affinities for ligands, one of the axial heme-iron residues in EcDos must be readily displaceable. Here we present evidence from mutagenesis, ligand-binding measurements, and magnetic circular dichroism, resonance Raman, and electron paramagnetic resonance spectroscopies about the nature of the displaceable residue in the heme-PAS domain of EcDos, i.e., EcDosH. The magnetic circular dichroism spectra in the near-infrared region establish histidine-methionine coordination in met-EcDos. To determine whether in deoxy-EcDos coordination of the sixth axial position is also to methionine, methionine 95 was substituted with isoleucine. This substitution caused the ferrous heme iron to change from an exclusively hexacoordinate low-spin form (EcDosH) to an exclusively pentacoordinate high-spin form (M95I EcDosH). This was accompanied by a modest acceleration of the dissociation rates of ligands but a dramatic increase (60-1300-fold) in the association rate constants for binding of O(2), CO, and NO. As a result, the affinity for O(2) was enhanced 10-fold in M95I EcDosH, but the partition constant M = [K(d)(O(2))/K(d)(CO)] between CO and O(2) was raised to about 30 from the extraordinarily low EcDosH value of 1. Thus a major consequence of the increased O(2) affinity of this sensor was the loss of its unusually strong ligand discrimination. PMID:12081490

Gonzalez, Gonzalo; Dioum, Elhadji M; Bertolucci, Craig M; Tomita, Takeshi; Ikeda-Saito, Masao; Cheesman, Myles R; Watmough, Nicholas J; Gilles-Gonzalez, Marie-Alda

2002-07-01

147

Geology, hydrology, and water quality of the Tracy-Dos Palos area, San Joaquin, California  

USGS Publications Warehouse

The Tracy-Dos Palos area includes about 1,800 square miles on the northwest side of the San Joaquin Valley. The Tulare Formation of Pliocene and Pleistocene age, terrace deposits of Pleistocene age, and alluvium and flood-basin deposits of Pleistocene and Holocene age constitute the fresh ground-water reservoir Pre-Tertiary and Tertiary sedimentary and crystalline rocks, undifferentiated, underlie the valley and yield saline water. Hydrologically most important, the Tulare Formation is divided into a lower water-bearing zone confined by the Corcoran Clay Member and an upper zone that is confined, semiconfined, and unconfined in different parts of the area. Alluvium and flood-basin deposits are included in the upper zone. Surficial alluvium and flood-basin deposits contain a shallow water-bearing zone. Lower zone wells were flowing in 1908, but subsequent irrigation development caused head declines and land subsidence. Overdraft in both zones ended in 1951 with import of surface water. Bicarbonate water flows into the area from the Sierra Nevada and Diablo Range. Diablo Range water is higher in sulfate, chloride, and dissolved solids. Upper zone water averages between 400 and 1,200 mg/l (milligrams per liter) dissolved solids and water hardness generally exceeds 180 mg/l as calcium carbonate. Nitrate, fluoride, iron, and boron occur in excessive concentrations in water from some wells. Dissolved constituents in lower zone water generally are sodium chloride and sodium sulfate with higher dissolved solids concentration than water from the upper zone. The foothills of the Diablo Range provide favorable conditions for artificial recharge, but shallow water problems plague about 50 percent of the area and artificial recharge is undesirable at this time.

Hotchkiss, W.R.; Balding, G.O.

1971-01-01

148

Propagao das ondas martimas e dos tsunami CCADERNOADERNO BBRASILEIRORASILEIRO DEDE EENSINONSINO DEDE FFSICASICA,, VV. 22,. 22, NN. 2:. 2: PP. 190-215, 2005. 190-215, 2005  

E-print Network

Propagação das ondas marítimas e dos tsunami CCADERNOADERNO BBRASILEIRORASILEIRO DEDE EENSINONSINO tratamos da propagação das ondas marítimas em geral (ondas de gravidade) e dos tsunami em especial. Mostra podem ser entendidos e previstos. Palavras-chave: ondas marítimas, tsunami. Abstract. The propagation

dos Santos, C.A.

149

A PRODUÇÃO E INDUSTRIALIZAÇÃO DO CAFÉ DOS PRINCIPAIS PRODUTORES BRASILEIROS E A ECONOMIA NACIONAL: SIMULAÇÕES SOB UM MODELO INTER-REGIONAL DE INSUMO-PRODUTO  

Microsoft Academic Search

Este trabalho tem como objetivo analisar o comportamento e a importância atual dos setores de produção agrícola e de industrialização de café de cada um dos principais Estados produtores brasileiros (Minas Gerais, Espírito Santo, São Paulo, Paraná, Bahia e Rondônia) em relação às respectivas economias estaduais e em relação aos demais setores da economia nacional. Para tanto, foi construído um

Fernando Malateaux Sakon; Joaquim Jose Martins Guilhoto; Flavia Maria De Mello Bliska; Denise Imori; Fernanda Sartori De Camargo

2008-01-01

150

Católicos, 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. PMID:21765650

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

2009-01-01

151

The Relationship between Older Drivers’ Performance on the Driving Observation Schedule (eDOS) and Cognitive Performance  

PubMed Central

Research question/Objective: The Driving Observation Schedule (eDOS) was developed for use in the Candrive/Ozcandrive five-year prospective study of older drivers to observe the driving behavior of older drivers and monitor changes in driving behaviors over time. The aim of this study is to describe participants’ driving performance during the eDOS driving task and investigate the association between driving performance and cognitive measures. Methods: A subset of Ozcandrive participants (n = 144, 104 male [72%], 40 female [28%], Mean age = 81.49 years, SD = 3.58 years, Range: 76 – 96 years) completed the eDOS driving task. Participants drove to their selected destinations (up to 4 locations), with observations of driving behaviors (both inappropriate and appropriate) recorded for specific driving maneuvers: intersection negotiation, lane-changing, merging, low speed maneuvers and maneuver-free driving. Driving behaviors (e.g. signalling, speed regulation, gap acceptance, lane position, ‘critical errors’) were scored by a trained observer and participants received an overall eDOS driving task score (Maximum = 100 points). Participants also completed a series of cognitive assessments as part of the Year 2 Candrive/Ozcandrive assessment protocols. Results: The overall eDOS driving task score was very high (M = 95.77; SD = 5.15; Range = 65.63 – 100). Detailed analyses of participants’ driving behavior revealed a high level of appropriate driving behavior (96%, n = 5,935 maneuvers), with few errors (4%, n = 252 maneuvers). While most participants’ performance on the cognitive assessments was high, some scores were below the criteria for cogntive impairment (BIC) according to conventional benchmarks: (MoCA: M = 26.56, SD = 2.12, Range = 19 – 30, % BIC = 28%; MMSE: M = 29.10, SD = 1.01, Range = 26–30, %BIC = 0%; Trails B: M = 111.66, SD = 43.53, Range = 50 – 301, %BIC = 6%). There was no significant relationship observed between participants’ overall eDOS driving task scores and age (r (144) = ?0.17, p > 0.05), and performance on various cognitive assessments including: MoCA (r (144) = 0.07, p > 0.1), MMSE (r (144) = 0.03, p > 0.5), Trail Making Test B (r (144) = 0.09, p > 0.1). Implications: Preliminary analyses of the eDOS driving task revealed a high level of appropriate driving behavior among Ozcandrive older drivers. Despite some participants’ cognitive performance suggesting impairment, participants’ overall eDOS driving task scores were not significantly related to cognitive performance. This finding is consistent with previous research suggesting some older drivers are able to compensate well for age-related cognitive impairment. PMID:24406947

Koppel, Sjaan; Charlton, Judith; Langford, Jim; Vlahodimitrakou, Zafiroula; Di Stefano, Marilyn; Macdonald, Wendy; Mazer, Barbara; Gelinas, Isabelle; Vrkljan, Brenda; Marshall, Shawn

2013-01-01

152

AVALIA?ˆO DA FERTILIDADE DOS SOLOS DE SISTEMAS AGROFLORESTAIS COM CAFEEIRO (Coffea arabica L.) EM LAVRAS-MG  

Microsoft Academic Search

RESUMO ñ Com o objetivo de avaliar a fertilidade dos solos em um sistema agroflorestal composto por cafeeiros (Coffea arÆbica L. ñ Mundo Novo), ingazeiros (Inga vera Willd) e grevÌleas (Grevilea robusta A. Cunn), situado em Lavras, Minas Gerais, foi instalado o presente experimento. Usou-se um delineamento experimental inteiramente casualizado com trŒs tratamentos e sete repetiÁies. Os tratamentos foram: a)

Bruno Grandi Salgado; Renato Luiz Grisi Macedo; Maria InŒs; Nogueira Alvarenga; Nelson Venturin

2006-01-01

153

En la búsqueda de características en eyecciones coronales de masa que discriminen entre dos paradigmas físicos en modelos de ECMs  

NASA Astrophysics Data System (ADS)

Se conocen tres diferentes fenómenos de gran escala que ocurren en la atmósfera solar, denominados eyecciones coronales de masa (ECMs), protuberancias eruptivas y grandes fulguraciones de dos bandas. Estos fenómenos están estrechamente relacionados y podrían ser distintas manifestaciones de un único proceso físico. Las ECMs son definidas como eyecciones de gran escala de masa y flujo magnético desde la baja corona al espacio interplanetario. Desde su descubrimiento en los '70, muchos modelos han sido propuestos para explicar su origen y evolución. La explicación física de las ECMs es un tema de debate intenso. No obstante, los modelos pueden sintetizarse en dos grandes grupos: 1) los modelos de inyección de flujo y 2) los modelos de almacenamiento y liberación. En este trabajo, se presentan los estudios realizados con una serie de eventos observados con el coronógrafo MICA (Mirror Coronograph for Argentina), el telescopio en H-alfa HASTA (H-alpha Solar Telescope for Argentina) y los coronógrafos C2 y C3 de la sonda SOHO (Solar and Heliospheric Observatory). Los eventos que pudieron ser identificados como ECMs son contrastados dentro del esquema de los dos paradigmas teóricos propuestos.

Paissan, G.; Stenborg, G.; Rovira, M.

154

DOS(Ec), a heme-regulated phosphodiesterase, plays an important role in the regulation of the cyclic AMP level in Escherichia coli.  

PubMed

Heme-regulated phosphodiesterase from Escherichia coli (DOS(Ec)) catalyzes the hydrolysis of cyclic AMP (cAMP) in vitro and is regulated by the redox state of the bound heme. Changes in the redox state result in alterations in the three-dimensional structure of the enzyme, which is then transmitted to the functional domain to switch catalysis on or off. Because DOS(Ec) was originally cloned from E. coli genomic DNA, it has not been known whether it is actually expressed in wild-type E. coli. In addition, the turnover number of DOS(Ec) using cAMP as a substrate is only 0.15 min(-1), which is relatively low for a physiologically relevant enzyme. In the present study, we demonstrated for the first time that the DOS(Ec) gene and protein are expressed in wild-type E. coli, especially under aerobic conditions. We also developed a DOS(Ec) gene knockout strain (Deltados). Interestingly, the knockout of dos caused excess accumulation of intracellular cAMP (26-fold higher than in the wild-type strain) under aerobic conditions, whereas accumulation of cAMP was not observed under anaerobic conditions. We also found differences in cell morphology and growth rate between the mutant cells and the wild-type strain. The changes in the knockout strain were partially complemented by introducing an expression plasmid for dos. Thus, the present study revealed that expression of DOS(Ec) is regulated according to environmental O2 availability at the transcriptional level and that the concentration of cAMP in cells is regulated by DOS(Ec) expression. PMID:16166529

Yoshimura-Suzuki, Tokiko; Sagami, Ikuko; Yokota, Nao; Kurokawa, Hirofumi; Shimizu, Toru

2005-10-01

155

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. PMID:22163475

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

2010-01-01

156

(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.

1991-10-01

157

Rare earth elements in Angra DOS Reis and Lewis Cliff 86010, two meteorites with similar but distinct magma evolutions  

NASA Astrophysics Data System (ADS)

Data are presented on ion microprobe measurements of REE and selected trace element abundances in individual grains of merrillite, fassaite, olivine, kirschsteinite, and plagioclase of Lewis Cliff 86010 (LEW 86010) meteorite and in merrillite and fassaite grains of Angra dos Reis (ADOR). Results show a close relationship between the two meteorites and support a magmatic origin for LEW 86010. However, the measurements indicate that, despite numerous common characteristics, the two meteorites must have been produced in separate magmatic events involving similar but distinct processes and parent melts.

Crozaz, G.; McKay, G.

1990-03-01

158

Rare earth elements in Angra dos Reis and Lewis Cliff 86010, two meteorites with similar but distinct magma evolutions  

NASA Technical Reports Server (NTRS)

Data are presented on ion microprobe measurements of REE and selected trace element abundances in individual grains of merrillite, fassaite, olivine, kirschsteinite, and plagioclase of Lewis Cliff 86010 (LEW 86010) meteorite and in merrillite and fassaite grains of Angra dos Reis (ADOR). Results show a close relationship between the two meteorites and support a magmatic origin for LEW 86010. However, the measurements indicate that, despite numerous common characteristics, the two meteorites must have been produced in separate magmatic events involving similar but distinct processes and parent melts.

Crozaz, Ghislaine; Mckay, Gordon

1990-01-01

159

PERCEPÇÃO E COMPORTAMENTOS RELACIONADOS COM A SAÚDE DOS ADOLESCENTES PORTUGUESES - UMA ANÁLISE EM FUNÇÃO DO SEXO E DA IDADE Perceived health and health related behaviours of Portuguese adolescents: an analysis by sex and age  

Microsoft Academic Search

RESUMO Objectivos: i) comparar a percepção do estado de saúde dos adolescentes em função do seu sexo e da idade; ii) analisar as relações existentes entre a percepção do estado de saúde dos adolescentes e os seus comportamentos, em cada um dos sexos e diferentes escalões etários. Métodos: Foi utilizado o \\

Nuno Corte-Real; Isabel Balaguer; Cláudia Dias; Rui Corredeira; António Manuel Fonseca

160

On the effectiveness of route-based packet filtering for distributed DoS attack prevention in power-law internets  

Microsoft Academic Search

Denial of service (DoS) attack on the Internet has become a pressing problem. In this paper, we describe and evaluate route-based distributed packet filtering (DPF), a novel approach to distributed DoS (DDoS) attack prevention. We show that DPF achieves proactiveness and scalability, and we show that there is an intimate relationship between the effectiveness of DPF at mitigating DDoS attack

Heejo Lee

2001-01-01

161

Didelphidae marsupials (Mammalia, Didelphimorphia) from the Late Pleistocene deposit of the Gruta dos Moura Cave, northern Brazil.  

PubMed

The present study acknowledges the diversity of fossil marsupials from the Gruta dos Moura cave, as well as environmental and climatic aspects during the Quaternary. The results show that this is the largest diversity of Pleistocene marsupials recorded in a single cave: Didelphis albiventris, D. aurita, Gracilinanus agilis, G. microtarsus, Marmosa murina, Monodelphis brevicaudata, M. domestica and Sairadelphys tocantinensis. Furthermore, the described specimens are also part of the only fossil assemblage unequivocally referable to the late Pleistocene. Paleontological studies suggest an intimate association with dry and open environments with high abundance of water sources. Since most of the identified taxa are characteristic of open forests and gallery forests, this could represent the actual environment around the Gruta dos Moura cave. Recent studies identified sympatric occurrences between species from open and dry environments and species from humid forests that were identified among our material and are characteristic of humid regions. Therefore, these species could inhabit gallery forests and capons, or even ecotones, inside a dry and open environment. Moreover, the extinction of Sairadelphys could also indicate that the climatic and environmental conditions changed or that the past environment was more heterogeneous than the current environment of the region. PMID:25806985

Nova, Patricia Villa; Avilla, Leonardo S; Oliveira, Édison V

2015-03-01

162

Factores socio-económicos asociados a la percepción de situación socioeconómica entre adultos mayores de dos países latinoamericanos  

PubMed Central

El objetivo principal del artículo es estudiar la asociación entre la percepción subjetiva sobre la situación económica propia y una serie de medidas objetivas de bienestar socioeconómico –fuentes de ingresos, tenencia de vivienda, nivel educativo y transferencias familiares informales de dinero- entre adultos mayores de dos países Latinoamericanos: México y Costa Rica. Los datos se obtienen de las primeras rondas de dos encuestas sobre envejecimiento: CRELES para Costa Rica y ENASEM para México. La variable dependiente más importante se obtiene de las respuestas a las pregunta “¿Cómo califica su situación económica actual?” en Costa Rica y “¿Diría usted que su situación económica es…?” en México. Para ambas encuestas, las respuestas se codificaron en forma binaria; el código 0 representa las categorías Excelente, Muy buena y Buena, y el código 1 representa a las categorías Regular y Mala. Se encontró que el ingreso por jubilación es un importante determinante de la percepción de bienestar en ambos países. En Costa Rica, el ingreso del cónyuge y la tenencia de vivienda son importantes predictores de la percepción de bienestar, mientras que en México, los ingresos por transferencias están fuertemente asociados con dicha percepción. PMID:25360057

Brenes-Camacho, Gilbert

2014-01-01

163

Effect of Meteorological Phenomena in Measures of Background Radiation X and Gamma Rays in São José dos Campos, SP, Brazil  

NASA Astrophysics Data System (ADS)

The objective of this work was to perform a study on the influence of meteorological phenomena on the background radiation X and gamma rays in São José dos Campos, SP, Brazil on the last three years. For this, we performed the monitoring of the integrated radiations and also of the main meteorological parameters (rainfall, relative humidity, temperature and pressure) daily without interruptions and time resolution of one minute. Measurements of X and gamma radiation in the range of energies from 30 keV to 10 MeV, were carried out using a scintillator crystal of sodium iodide activated with Tallium [NaI(Tl)] coupled to a photomultiplier, with energy resolution of 15%. Rainfall, atmospheric pressure, temperature, and relative humidity were recorded using sensors coupled to a five-channel specific data logger. By correlating the data from the measurements of intensity of X and gamma radiations with the meteorological parameters, it was found that atmospheric precipitation with or without electric discharges phenomenon that was affected more in the spectrum of background radiation profile. Some of the reasons why these changes occur in the background profile are due the presence of environmental radon gas that is drawn to the surface during the occurrences of local rainfall. During dry periods, the spectra of X and gamma radiations showed a daily cycle (24 hour). In relation to relative humidity, temperature and pressure, it was found that these parameters had negligible influence on the profile changes of the background radiation in São José dos Campos, SP, Brazil.

Gomes, Marcelo; Spjeldvik, Walther; Gusev, Anatoly; Alves, Mauro; Martin, Inacio; Pinto, Marcos; Ferro, Marco A.; Concei, Flavio

164

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.

165

Seismogenic sources and crustal structure near the seismological station of Angra dos Reis (ESAR), southeastern region of Brazil  

NASA Astrophysics Data System (ADS)

The seismological station of Angra dos Reis (ESAR) is operating since the end of year 2000 located near to the nuclear power plants of Angra dos Reis, in the southern portion of Rio de Janeiro state, southeastern Brazil. The main objective of ESAR is defining the level of seismic activity in the area where those plants are installed, using data from a broadband seismograph that operates in a 100 cps continuous format. Epicentral determination of local seismic events is done through the back azimuth calculated with the P wave amplitude in the three component seismograms, and epicentral distance induced from the S-P time difference. Crustal structure for relating the S-P time and epicentral distance was obtained through a seismic refraction experiment using controlled sources, complemented with a detailed study of crustal structure beneath ESAR using teleseimic data and the receiver function method processed in the time domain. Since the beginning of operation ESAR has detected many local and near regional seismic events with magnitude lower than mb 4.0, most of them below mb 2.0, and not included in the Brazilian Seismic Catalogue. Epicenters of those events are spread in both oceanic and continental areas, in some cases forming clusters of different size, some of them, especially those located in the continent could belong to explosions made in stone-quarry, whereas, clusters and isolated epicenters located in the oceanic area could belong to natural earthquakes. Two of these oceanic clusters, located in the continental platform, may belong to seismogenic sources that are active near ESAR, and need further study to define its nature.

Romero, T.; Berrocal, J.; Fernandes, C.; de Lima, M. V.; Dos Reis, E.

2007-05-01

166

Identificabilidade e estabilidade dos parâmetros no método Grade of Membership (GoM): considerações metodológicas e práticas  

PubMed Central

O método Grade of Membership (GoM) tem sido cada vez mais utilizado por demógrafos brasileiros e tem a vantagem de possuir um parâmetro que mensura a heterogeneidade individual, com base nas correlações não-observáveis entre as categorias de resposta das variáveis de interesse, gerando um medida do grau de pertencimento de cada indivíduo a perfis extremos. Alguns autores, contudo, chamam atenção para questões importantes na calibragem dos modelos finais que utilizam o programa GoM versão 3.4, como o problema de identificabilidade – soluções múltiplas para parâmetros estimados. Neste artigo, é sugerido um procedimento capaz de identificar um modelo final com solução única que descreva os tipos puros mais fidedignos à base de dados, em uma tentativa de otimização. Para ilustrar esse processo, utilizou-se uma base de dados correspondente a um levantamento econômico e sociodemográfico de uma população de pequenos agricultores residentes ao longo da Rodovia Transamazônica, no Estado do Pará. Também identificou-se a existência de instabilidade nos parâmetros estimados pelo programa GoM 3.4, sendo proposto um método de estabilização de seus valores. Com esses procedimentos combinados, os usuários do programa GoM 3.4 poderão descrever sua base de dados de forma mais adequada e responder às críticas sobre questões de identificabilidade e estabilidade dos modelos resultantes. Essas soluções empíricas são relevantes por afetarem cálculos de prevalência e de incidência de eventos de interesse, além de trazerem consequências importantes sobre o ponto e o momento corretos para intervenções de políticas públicas ou de planejamento prospectivo em análises de projeção. PMID:21709732

Guedes, Gilvan Ramalho; Caetano, André Junqueira; Machado, Carla Jorge; Brondízio, Eduardo Sonewend

2011-01-01

167

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

PubMed

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

2012-08-01

168

Cari Colleghi e Colleghe, come noto da domani 20 Ottobre fino al 30 p.v. si svolgeranno le elezioni per il rinnovo delle  

E-print Network

cambiamenti. Durante il mio precedente mandato di rappresentante della macroarea 6 in Senato Accademico ho avuto modo di meglio comprendere i meccanismi di gestione del nostro ateneo ed ho cercato di mettere a disposizione dei colleghi questi elementi di conoscenza. Più recentemente ho vissuto con entusiasmo ed

Di Pillo, Gianni

169

VARIAÇÃO DA DENSIDADE BÁSICA DA MADEIRA DE ESPÉCIES E PROCEDÊNCIAS DE PINUS CENTRO-AMERICANOS EM TRÊS LOCAIS NA REGIÃO DOS CERRADOS  

Microsoft Academic Search

RESUMO Procedências de Pinus oocarpa Shiede, Pinus caribaea Morelet \\/var. hondurensis (Senecl.) Barret & Golfari, Pinus caribaea Morelet var. bahamensis (Griseb). Barret & Golfari e Pinus patula Schiede & Deppe subsp. tecunumanii (Eguiluz & Perry) Styles foram avaliadas quanto à densidade básica da madeira, e parâmetros de crescimento em Planaltina (DF), Serranópolis (GO) e Jaciara (MT) dentro da região dos

Vicente Pongitory; Gifone Moura; Maria Luiza Spinelli Parca; Marco Aurélio Silva

170

Notes on Use of VecTor Programs: The VecTor analysis programs operate in a DOS-environment. Various input files are created or  

E-print Network

three types of input files: 1. A job file (*.job), in which job parameters, analysis parameters, load). Prior to execution of an analysis, the *.job file should be copied to the file 'vector.job'. AnalysisNotes on Use of VecTor Programs: The VecTor analysis programs operate in a DOS-environment. Various

Vecchio, Frank J.

171

Los orígenes y las trayectorias empresariales de dos laboratorios argentinos a lo largo del siglo XX: La Fármaco Argentina y Roux Ocefa  

Microsoft Academic Search

En este trabajo se analiza las trayectorias empresariales de dos laboratorios argentinos a lo largo del siglo XX: La Fármaco Argentina S.A. y Roux Ocefa S.A. El propósito es estudiar el desenvolvimiento de ambas firmas durante ese período, para identificar y comparar el comportamiento de los principales indicadores con que hemos definido la cultura empresarial. La capacidad para mantenerse en

Ana Pfeiffer; Mónica Campins

1999-01-01

172

A low-cost localization system based on Artificial Landmarks Claudio dos S. Fernandes, Mario F. M. Campos and Luiz Chaimowicz  

E-print Network

A low-cost localization system based on Artificial Landmarks Cl´audio dos S. Fernandes, Mario F. M in the environment ceiling. Although the use of artificial landmarks restricts the applicability of this methodology is a complicating factor in terms of problem complexity. The use of computer vision techniques for aiding mobile

Chaimowicz, Luiz

173

65Cidades Comunidades e Territrios, n. 19, 2009, pp. 65 -80 Sociologia dos Conflitos Locais contra os Rom e os Sinti em Itlia  

E-print Network

contra os Rom e os Sinti em Itália Pluralidade de contextos e variedade de instrumentos políticos Tommaso instrumentos e objectivos políticos. Observando os casos de Milão e Roma, sublinha-se um tipo de modalidade diferentes tipos de mediação e (2) de envolvimento dos beneficiários Rom no planeamento de instrumentos

Paris-Sud XI, Université de

174

ETNOECOLOGIA DOS CÁGADOS-D'ÁGUA PHRYNOPS SPP. (TESTUDINOMORPHA: CHELIDAE) ENTRE PESCADORES ARTESANAIS NO AÇUDE BODOCONGÓ, CAMPINA GRANDE, PARAÍBA, NORDESTE DO BRASIL 1  

Microsoft Academic Search

4 Professora da Rede Particular de Ensino no estado do Maranhão. (Etnoecologia dos cágados-d'água Phrynops spp. (Testudinomorpha: Chelidae) entre pescadores artesanais no Açude Bodocongó, Campina Grande, Paraíba, Nordeste do Brasil) - Bodocongó é um açude urbano localizado em Campina Grande, Paraíba, Nordeste do Brasil (07°13'11\\

ÂNGELO G. C. ALVES; FRANCISCO JOSÉ B. SOUTO; ARACÉLIA M. LEITE

175

Un estudio de los Institutos Nacionales de la Salud indica que dos dosis de vacuna contra los VPH pueden proteger tanto como el tratamiento completo  

Cancer.gov

Dos dosis de Cervarix, la vacuna contra virus del papiloma humano (VPH), fueron tan efectivas como la pauta normal actual de tres dosis después de cuatro años de seguimiento. El estudio de vacuna en Costa Rica, patrocinado por el NCI, fue diseñado para evaluar la eficacia de Cervarix en una población determinada.

176

The ethnocategory ''insect'' in the conception of the inhabitants of Tapera County, São Gonçalo dos Campos, Bahia, Brazil.  

PubMed

This article deals with the construction of the "insect" ethnozoological dominium by the inhabitants of Tapera County, which is located in the municipality of São Gonçalo dos Campos, Bahia State. Data were obtained from March to May 2005 through open-ended interviews carried out with 23 men and 8 women, whose ages ranged from 6 to 66 years old. Interviewees were asked about how they perceived and defined the animals considered as "insects", which types they knew, and if they used them as food resource. Most of the interviews were tape-recorded, and semi-literal transcriptions are kept at the Ethnobiology Laboratory of the Universidade Estadual de Feira de Santana. Considering the ethnozoological classification system of the inhabitants of Tapera, the term "insect" is a broad semantic category that brings together animals of different and not systematically related taxonomic groups. Apparently, these animals are culturally perceived and categorized as "insects" because they are usually considered as noxious, disgusting, and disease carrier creatures. True insects can be excluded from this ethnocategory due to the perception people have that such animals do not cause "injuries" or because they are useful. Perceptions toward these animals imply ambiguous behavior and feelings, which range from more positive attitudes (conservative) to more negative (destructive). PMID:17625679

Costa-Neto, Eraldo M; Magalhães, Henrique F

2007-06-01

177

MprA and DosR Coregulate a Mycobacterium tuberculosis Virulence Operon Encoding Rv1813c and Rv1812c  

PubMed Central

Mycobacterium tuberculosis remains a significant global pathogen, causing extensive morbidity and mortality worldwide. This bacterium persists within granulomatous lesions in a poorly characterized, nonreplicating state. The two-component signal transduction systems MprAB and DosRS-DosT (DevRS-Rv2027c) are responsive to conditions likely to be present within granulomatous lesions and mediate aspects of M. tuberculosis persistence in vitro and in vivo. Here, we describe a previously uncharacterized locus, Rv1813c-Rv1812c, that is coregulated by both MprA and DosR. We demonstrate that MprA and DosR bind to adjacent and overlapping sequences within the promoter region of Rv1813c and direct transcription from an initiation site located several hundred base pairs upstream of the Rv1813 translation start site. We further show that Rv1813c and Rv1812c are cotranscribed, and that the genomic organization of this operon is specific to M. tuberculosis and Mycobacterium bovis. Although Rv1813c is not required for survival of M. tuberculosis in vitro, including under conditions in which MprAB and DosRST signaling are activated, an M. tuberculosis ?Rv1813c mutant is attenuated in the low-dose aerosol model of murine tuberculosis, where it exhibits a lower bacterial burden, delayed time to death, and decreased ability to stimulate proinflammatory cytokines interleukin-1? (IL-1?) and IL-12. Interestingly, overcomplementation of these phenotypes is observed in the M. tuberculosis ?Rv1813c mutant expressing both Rv1813c and Rv1812c, but not Rv1813c alone, in trans. Therefore, Rv1813c and Rv1812c may represent general stress-responsive elements that are necessary for aspects of M. tuberculosis virulence and the host immune response to infection. PMID:22689819

Bretl, Daniel J.; He, Hongjun; Demetriadou, Crystalla; White, Mark J.; Penoske, Renee M.; Salzman, Nita H.

2012-01-01

178

Structural and electronic properties of protein/thiolate-protected gold nanocluster with "staple" motif: A XAS, L-DOS, and XPS study.  

PubMed

Following the recent breakthrough of total structural determination of a Au-thiolate nanocluster [P. Jadzinsky et al., Science 318, 430 (2007)], extensive interests have been stimulated to unveil (or revisit) the structure-property relationship of various thiolate-Au nanostructures in light of the new finding of -SR-(Au-SR)(x)- "staple" motif. Here, we present experimental x-ray absorption spectroscopy (XAS) and x-ray photoelectron spectroscopy (XPS) results on the local structure and electronic properties of thiolate-protected Au nanocluster encapsulated in bovine serum albumin (Au-BSA) together with theoretical calculation of projected local density of states (l-DOS) of Au(25)(SR)(18) model cluster. Analysis of the Au L(3)-edge extended x-ray absorption fine structure (EXAFS) of Au-BSA suggested that the nanocluster is Au(25) with Au-thiolate "staple" motif. X-ray absorption near-edge structure (XANES) and Au 4f XPS were used to probe the electronic behavior of Au-BSA. The Au d-electron density of Au-BSA was found to decrease by 0.047 e(-) relative to that of the bulk. A self-consistent real space Green's function approach implemented in ab initio FEFF8 program was used to calculate the l-DOS of Au(25)(SR)(18) and other model clusters from a site-specific perspective. The theoretical results are in good agreement with the experimental d-DOS data of Au-BSA and, importantly, systematically illustrate the effect of Au-thiolate "staple" motif on the electronic behavior of Au(25)(SR)(18). The present work sheds light on the structure-property relationship of thiolate-protected Au(25) from both experimental and theoretical perspectives and illustrates the usefulness of XAS/l-DOS method in such studies. PMID:19968356

Simms, Gordon A; Padmos, J Daniel; Zhang, Peng

2009-12-01

179

Structural and electronic properties of protein/thiolate-protected gold nanocluster with ``staple'' motif: A XAS, L-DOS, and XPS study  

NASA Astrophysics Data System (ADS)

Following the recent breakthrough of total structural determination of a Au-thiolate nanocluster [P. Jadzinsky et al., Science 318, 430 (2007)], extensive interests have been stimulated to unveil (or revisit) the structure-property relationship of various thiolate-Au nanostructures in light of the new finding of -SR-(Au-SR)x- "staple" motif. Here, we present experimental x-ray absorption spectroscopy (XAS) and x-ray photoelectron spectroscopy (XPS) results on the local structure and electronic properties of thiolate-protected Au nanocluster encapsulated in bovine serum albumin (Au-BSA) together with theoretical calculation of projected local density of states (l-DOS) of Au25(SR)18 model cluster. Analysis of the Au L3-edge extended x-ray absorption fine structure (EXAFS) of Au-BSA suggested that the nanocluster is Au25 with Au-thiolate "staple" motif. X-ray absorption near-edge structure (XANES) and Au 4f XPS were used to probe the electronic behavior of Au-BSA. The Au d-electron density of Au-BSA was found to decrease by 0.047 e- relative to that of the bulk. A self-consistent real space Green's function approach implemented in ab initio FEFF8 program was used to calculate the l-DOS of Au25(SR)18 and other model clusters from a site-specific perspective. The theoretical results are in good agreement with the experimental d-DOS data of Au-BSA and, importantly, systematically illustrate the effect of Au-thiolate "staple" motif on the electronic behavior of Au25(SR)18. The present work sheds light on the structure-property relationship of thiolate-protected Au25 from both experimental and theoretical perspectives and illustrates the usefulness of XAS/l-DOS method in such studies.

Simms, Gordon A.; Padmos, J. Daniel; Zhang, Peng

2009-12-01

180

Colegio de Yale 20112012 En el momento de su fundacin en 1701 Yale consista en un estudiante, un profesorado de dos  

E-print Network

Yale Colegio de Yale 2011­2012 En el momento de su fundación en 1701 Yale consistía en un estudiante, un profesorado de dos miembros y un simple edificio de madera. Hoy día Yale es una de las mejores universidades de investigación, con una población de más de 11.000 estudiantes--incluyendo el `Colegio de Yale

181

Calculo Numerico -Segunda Prova -29/11/05 Considere a populac~ao dos E.U.A. em milhares de pessoas dada pela tabela seguinte  

E-print Network

Segunda Ordem para estimar a popula¸c~ao ap´os 1 e ap´os 2 anos. [2, 0 pts] (b) Explique os conceitos deC´alculo Num´erico - Segunda Prova - 29/11/05 1 Considere a popula¸c~ao dos E.U.A. em milhares de pessoas dada pela tabela seguinte: Ano 1930 1960 1990 Popula¸c~ao 132, 2 179, 3 249, 6 (a) Utilize

Sussner, Peter

182

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

2013-04-01

183

DRK/DOS/SOS converge with Crk/Mbc/dCed-12 to activate Rac1 during glial engulfment of axonal debris  

PubMed Central

Nervous system injury or disease leads to activation of glia, which govern postinjury responses in the nervous system. Axonal injury in Drosophila results in transcriptional up-regulation of the glial engulfment receptor Draper; there is extension of glial membranes to the injury site (termed activation), and then axonal debris is internalized and degraded. Loss of the small GTPase Rac1 from glia completely suppresses glial responses to injury, but upstream activators remain poorly defined. Loss of the Rac guanine nucleotide exchange factor (GEF) Crk/myoblast city (Mbc)/dCed-12 has no effect on glial activation, but blocks internalization and degradation of debris. Here we show that the signaling molecules downstream of receptor kinase (DRK) and daughter of sevenless (DOS) (mammalian homologs, Grb2 and Gab2, respectively) and the GEF son of sevenless (SOS) (mammalian homolog, mSOS) are required for efficient activation of glia after axotomy and internalization/degradation of axonal debris. At the earliest steps of glial activation, DRK/DOS/SOS function in a partially redundant manner with Crk/Mbc/dCed-12, with blockade of both complexes strongly suppressing all glial responses, similar to loss of Rac1. This work identifies DRK/DOS/SOS as the upstream Rac GEF complex required for glial responses to axonal injury, and demonstrates a critical requirement for multiple GEFs in efficient glial activation after injury and internalization/degradation of axonal debris. PMID:25099352

Lu, Tsai-Yi; Doherty, Johnna; Freeman, Marc R.

2014-01-01

184

Geochemistry and petrogenesis of the Mesoarchean granites from the Canaã dos Carajás area, Carajás Province, Brazil: Implications for the origin of Archean granites  

NASA Astrophysics Data System (ADS)

Four Mesoarchean (2.93 to 2.83 Ga) granite units, which encompass the Canaã dos Carajás, Bom Jesus, Cruzadão and Serra Dourada granites, were recognized in the Canaã dos Carajás area of the Archean Carajás Province. The Mesoarchean units are composed dominantly of biotite leucomonzogranites. They are compared with the Neoarchean Planalto suite (2.73 Ga) which encompasses biotite-hornblende monzogranites to syenogranites. The Canaã dos Carajás, Bom Jesus and the variety of the Cruzadão granite with higher (La/Yb)N are geochemically more akin to the calc-alkaline granites, whereas the other varieties of the Cruzadão granite are transitional between calc-alkaline and alkaline granites. The Serra Dourada granite has an ambiguous geochemical character with some features similar to those of calc-alkaline granites and other peraluminous granites. The Planalto granites have ferroan character, are similar geochemically to reduced A-type granites and show a strong geochemical contrast with the Mesoarchean studied granites. The Mesoarchean granites described in the Canaã dos Carajás area are geochemically distinct to those of the Rio Maria domain of the Carajás Province. The Canaã dos Carajás and Bom Jesus granites are similar to the high-Ca granites, whereas the Cruzadão and Serra Dourada are more akin to the low-CaO granites of the Yilgarn craton. The geochemical characteristics of the Mesoarchean studied granites approach those of the biotite granite group of Dharwar but the latter are enriched in HFSE and HREE compared to the Canaã dos Carajás granites. The Neoarchean Planalto suite granite has no counterpart in the Mesoarchean Rio Maria domain of the Carajás Province, neither in the Yilgarn and Dharwar cratons. Geochemical modeling suggests that partial melting of a source similar in composition to an Archean basaltic andesite of the Carajás Province could give origin to the Bom Jesus and Cruzadão granites. In the case of the Bom Jesus granite the residue of melting contained, in similar proportions, plagioclase, clinopyroxene, amphibole, and garnet, with subordinate ilmenite. The variations in (La/Yb)N and Sr/Y of the Cruzadão granite are controlled by changes in the residual melting phases. Garnet and amphibole are abundant in the residue of the variety with higher (La/Yb)N, whereas in the rocks with moderate to lower (La/Yb)N garnet is absent, magnetite appears in the residue and amphibole initially increases but is replaced by orthopyroxene in the rocks with the lowest (La/Yb)N. In the Canaã dos Carajás and Serra Dourada granites garnet was probably an absent phase in the residue of melting and the influence of amphibole was also apparently limited. A crustal environment and a variable pressure from 10 to 7-8 kbar are estimated for the generation of the granite magmas. The Bom Jesus and Cruzadão granites of Carajás derived from basaltic andesite sources and not of TTG and their geochemical contrasts can be explained by variation in the pressure of melting. The sources of Archean granite magmas are more diversified and could be more mafic than generally admitted.

Feio, G. R. L.; Dall'Agnol, R.

2012-12-01

185

2.3 Å 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. PMID:18980385

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

2009-01-01

186

[Species from genus Eimeria observed in domestic rabbit (Oryctolagus cuniculus) feces raised at the Municipality of Campos dos Goytacazes in the State of Rio de Janeiro, Brazil].  

PubMed

This study was designed to identify species of the genus Eimeria from eleven rabbit meat breeders from Campos dos Goytacazes. Fecal samples were collected from rabbits with different health conditions and consintence of feces. The following species of Eimeria were identified: E. perforans; E. magna; E. coecicola; E. irresidua; E. media; E. flavescens; E. nagpurensis; E. intestinalis, E. exigua and E. stiedae. Parasites from this genus were detected in 81.82% (9) of the rabbit meat production sites, regardless of the management and hygiene conditions. In all cases the infection was always caused from more than one species of Eimeria. PMID:17196120

de Almeida, Adriana J; Mayen, Friederike L; de Oliveira, Francisco C R

2006-01-01

187

Consentimiento informado: una praxis dialogica para la investigacion  

PubMed Central

El consentimiento informado es un proceso, en el que una persona acepta participar en una investigation, conociendo los riesgos, beneficios, consecuencias o problemas que se puedan presenter durante el desarrollo de la misma. El objetivo de este trabajo es reunir las caracteristicas del proceso de consentimiento informado (PCI) pare que su discernimiento y cumplimiento posibilite el ejercicio etc° dialogico, reflexivo y responsable del investigador. Se presentan los resultados de una extensa revision de les elementos del PCI, desde sus cornponentes hasta su fundamento etico y legal, incluyendo los mites y realidades que existen sobre el formato de consentimiento informado come recurso legal de protection. El consentimiento informado no es un formato establecido que los investigadores repliquen, se trata de que la praxis del PCI sea una tarea cotidiana dentro de la investigation con seres humanos, como comunicaciOn deliberative y critica, responsable y comprometida entre dos agentes morales, investigador-investigado. PMID:19507477

Mondragon-Barrios, Liliana

2009-01-01

188

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

2010-01-01

189

ASPECTS OF THE ECOLOGY OF PHLEBOTOMINES (Diptera: Psychodidae: Phlebotominae) IN AN AREA OF CUTANEOUS LEISHMANIASIS OCCURRENCE, MUNICIPALITY OF ANGRA DOS REIS, COAST OF RIO DE JANEIRO STATE, BRAZIL  

PubMed Central

Over a complete two-year period, phlebotomine specimens were caught in an area of cutaneous leishmaniasis occurrence in the municipality of Angra dos Reis. A manual suction tube was used to catch phlebotomines on house walls, and also light traps in domestic and peridomestic settings and in the forest. This yielded 14,170 specimens of 13 species: two in the genus Brumptomyia and eleven in the genus Lutzomyia. L. intermedia predominantly in domestic and peridomestic settings, with little presence in the forest, with the same trend being found in relation to L. migonei, thus proving that these species have adapted to the human environment. L. fischeri appeared to be eclectic regarding location, but was seen to be proportionally more endophilic. L. intermedia and L. migonei were more numerous in peridomestic settings, throughout the year, while L. fischeri was more numerous in domestic settings except in March, April, May and September. From the prevalence of L. intermedia, its proven anthropophily and findings of this species naturally infected with Leishmania (Viannia) braziliensis, it can be incriminated as the main vector for this agent of cutaneous leishmaniasis in the study area, especially in the peridomestic environment. L. fischeri may be a coadjuvant in carrying the parasite. PMID:24626417

de Aguiar, Gustavo Marins; de Azevedo, Alfredo Carlos Rodrigues; de Medeiros, Wagner Muniz; Alves, João Ricardo Carreira; Rendeiro, Vanessa

2014-01-01

190

Observation of a Gamma-Ray Pulse at Ground Level Produced by an Atmospheric Lightning Discharge in São José dos Campos, SP, Brazil  

NASA Astrophysics Data System (ADS)

We have used a gamma scintillator (Ludlum, USA; Model 44-20) consisting of NaI(Tl) crystal (diameter, 7.6 cm; length, 7.6 cm) optically coupled to a photomultiplier tube (diameter, 7.6 cm) to measure local background gamma radiation in the energy range of 60 keV to 2 MeV. Data are collected one-minute intervals. The scintillator was housed in an air-conditioned room and measurements have been made almost continuously for more than three years at the same location in São José dos Campos, SP, Brazil (23° 12’ 45” S, 45° 52’ 0 W). During a summer thunderstorm that occurred on January 13, 2014 at 18:44 h (local time) a lightning stroke a nearby lightning rod installed in the same building and was observed by one of us (I.M.M.). Simultaneously to the occurrence of the lightning strike, the scintillator recorded a pulse of gamma-rays which lasted for only one minute (count integration time) and whose amplitude was approximately twice as large as that of the normal background count. Data from the World Wide Lightning Location Network (WWLLN) confirms that at the time of the pulse there was intense electrical activity in the area. Since spurious signals, malfunctioning equipment or electromagnetic transients were not responsible for the pulse we are led to believe that we recorded a gamma-ray pulse produced by the lightning discharge.

Alves, Mauro; Spjeldvik, Walther; Gusev, Anatoly; Martin, Inacio; Gomes, Marcelo

191

Dos tardes con Carlos Solórzano  

E-print Network

para vivir ni mucho menos para morir. Y claro, cuando uno tiene un pensamiento filosófico, abstracto, más o menos literario, que viene a ser confirmado por un hecho de la realidad, forzosamente se acendra como una vivencia casi inseparable de la... Camus, de Ghelderode; el teatro del absurdo de Beckett, de Ionesco? Empezando por el final de su pregunta, el teatro abstracto, descarnado, un tanto deshumanizado de Beckett y de Ionesco, realmente lo admiro, pero no creo haber tomado nada de eso. En...

Mé ndez-Faith, Teresa

1984-10-01

192

Molecular Characterization of Human Pathogenic Bunyaviruses of the Nyando and Bwamba/Pongola Virus Groups Leads to the Genetic Identification of Mojuí dos Campos and Kaeng Khoi Virus  

PubMed Central

Background Human infection with Bwamba virus (BWAV) and the closely related Pongola virus (PGAV), as well as Nyando virus (NDV), are important causes of febrile illness in Africa. However, despite seroprevalence studies that indicate high rates of infection in many countries, these viruses remain relatively unknown and unstudied. In addition, a number of unclassified bunyaviruses have been isolated over the years often with uncertain relationships to human disease. Methodology/Principal Findings In order to better understand the genetic and evolutionary relationships among orthobunyaviruses associated with human disease, we have sequenced the complete genomes for all 3 segments of multiple strains of BWAV (n?=?2), PGAV (n?=?2) and NDV (n?=?4), as well as the previously unclassified Mojuí dos Campos (MDCV) and Kaeng Khoi viruses (KKV). Based on phylogenetic analysis, we show that these viruses populate 2 distinct branches, one made up of BWAV and PGAV and the other composed of NDV, MDCV and KKV. Interestingly, the NDV strains analyzed form two distinct clades which differed by >10% on the amino acid level across all protein products. In addition, the assignment of two bat-associated bunyaviruses into the NDV group, which is clearly associated with mosquito-borne infection, led us to analyze the ability of these different viruses to grow in bat (RE05 and Tb 1 Lu) and mosquito (C6/36) cell lines, and indeed all the viruses tested were capable of efficient growth in these cell types. Conclusions/Significance On the basis of our analyses, it is proposed to reclassify the NDV strains ERET147 and YM176-66 as a new virus species. Further, our analysis definitively identifies the previously unclassified bunyaviruses MDCV and KKV as distinct species within the NDV group and suggests that these viruses may have a broader host range than is currently appreciated. PMID:25188437

Groseth, Allison; Mampilli, Veena; Weisend, Carla; Dahlstrom, Eric; Porcella, Stephen F.; Russell, Brandy J.; Tesh, Robert B.; Ebihara, Hideki

2014-01-01

193

Rb-Sr and Sm-Nd whole rock analyses of basalts of the Grao Para Group, Serra dos Carajas, Brazil  

SciTech Connect

The Grao Para Group at Serra dos Carajas in the Guapore Shield of Brazil is a 6 km thick sequence of bimodal metavolcanic rock with interbedded iron formations. Rhyolites are a minor part of the low grade meta-volcanic section, with the bulk consisting of subalkaline basalt, basaltic andesite, and shoshonite. Rb-Sr whole rock analyses of 7 basalts yield an age of 2687 +/- 54 Ma. This agrees well with an age of 2758 +/- 39 Ma from zircon U-Pb analyses of the interbedded rhyolites. Except for the allocthonous Imataca Complex of Venezuela, these dates for the Grao Para Group are the first well-constrained Archean ages from the Amazonian Craton. An even older age for the basement to the Grao Para Group is also implied. Sm-Nd whole-rock analyses of four of these basalts did not yield an isochron because of the limited range of /sup 147/Sm//sup 144/Nd values, but element of/sub Nd/ values relative to CHUR were calculated using the Rb-Sr age. The typical LREE-enrichment, lack of Ce depletion or spilitic alteration of alkalies, and the high Sr initial ratios, may indicate that these isotopic patterns were derived by incorporation of some older continental crust in the mafic melts. These data together with an element of/sub Sr/ of +63.6 might indicate significant seawater exchange with volcanic rocks derived from mantle with chondritic REE patterns. This demonstrates the presence of significant continental crust in the Archean and seawater-volcanic rock interaction in a rifting environment similar to modern analogs.

Olszewski, W.J. Jr.; Gibbs, A.K.; Wirth, K.R.

1985-01-01

194

An interdisciplinary knowledge translation intervention in long-term care: Study protocol for the vitamin D and osteoporosis study (ViDOS) pilot cluster randomized controlled trial  

PubMed Central

Background Knowledge translation (KT) research in long-term care (LTC) is still in its early stages. This protocol describes the evaluation of a multifaceted, interdisciplinary KT intervention aimed at integrating evidence-based osteoporosis and fracture prevention strategies into LTC care processes. Methods and design The Vitamin D and Osteoporosis Study (ViDOS) is underway in 40 LTC homes (n?=?19 intervention, n?=?21 control) across Ontario, Canada. The primary objectives of this study are to assess the feasibility of delivering the KT intervention, and clinically, to increase the percent of LTC residents prescribed ?800?IU of vitamin D daily. Eligibility criteria are LTC homes that are serviced by our partner pharmacy provider and have more than one prescribing physician. The target audience within each LTC home is the Professional Advisory Committee (PAC), an interdisciplinary team who meets quarterly. The key elements of the intervention are three interactive educational sessions led by an expert opinion leader, action planning using a quality improvement cycle, audit and feedback reports, nominated internal champions, and reminders/point-of-care tools. Control homes do not receive any intervention, however both intervention and control homes received educational materials as part of the Ontario Osteoporosis Strategy. Primary outcomes are feasibility measures (recruitment, retention, attendance at educational sessions, action plan items identified and initiated, internal champions identified, performance reports provided and reviewed), and vitamin D (?800?IU/daily) prescribing at 6 and 12?months. Secondary outcomes include the proportion of residents prescribed calcium supplements and osteoporosis medications, and falls and fractures. Qualitative methods will examine the experience of the LTC team with the KT intervention. Homes are centrally randomized to intervention and control groups in blocks of variable size using a computer generated allocation sequence. Randomization is stratified by home size and profit/nonprofit status. Prescribing data retrieval and analysis are performed by blinded personnel. Discussion Our study will contribute to an improved understanding of the feasibility and acceptability of a multifaceted intervention aimed at translating knowledge to LTC practitioners. Lessons learned from this study will be valuable in guiding future research and understanding the complexities of translating knowledge in LTC. Trial registration ClinicalTrials.gov NCT01398527. PMID:22624776

2012-01-01

195

Caracteristicas de los Estudiantes de Ciencias Agricolas y de Economia Domestica de la Universidad de Puerto Rico (Characteristics of the Agricultural Science and Home Economics Students of the University of Puerto Rico). Publicacion 135.  

ERIC Educational Resources Information Center

As part of a U.S. Department of Agriculture research project on young adults, a questionnaire was distributed in the fall of 1977 to all agriculture science and home economics students at the University of Puerto Rico in order to determine their personal and parental backgrounds; work, college, and high school experiences; life goals and attitudes…

Lube, Edna Droz; Calero, Reinaldo

196

Identification of familial clustering for cancer through the family health strategy program in the municipality of Angra dos Reis, Rio de Janeiro, Brazil.  

PubMed

Identification of families with history of cancer in the municipality of Angra dos Reis, Rio de Janeiro (Brazil), through the Brazilian Unified Primary Health Care System was explored based in the Community Health Agents (CHA) program. This study was divided into two phases: a descriptive one with a cross-sectional epidemiological data of families with history of cancer based on CHA-collected data from home visits in four primary health care units. The second phase consisted in identifying familial clustering of three or more individuals with cancer through construction of a three-generation pedigree and revisited by an itinerant group of medical geneticists. Genetic counseling was carried out with the intent of selecting potential families at risk for hereditary familial cancers. In the first phase of the study, 1,581 families were interviewed by the CHA at their homes. A positive history for cancer was present in 42.3 % of families, comprising 22.3 % with only one case per family, 11.2 % with two cases, and 8.6 % with three or more cases in the family. The informant reported that 15 % of the cases were from the father lineage, 12 % from the mother lineage, and 12.1 % within siblings. In the remaining 60.9 % families, cancer was present in both sides of the family. The types of cancer reported were uterus 8.7 % (n?=?137), stomach 7.7 % (n?=?122), breast 6.9 % (n?=?109), throat 6.8 % (n?=?99), prostate 5.4 % (n?=?85), lung 5.6 % (n?=?88), bowel 3.7 % (n?=?59), and unspecified sites in 6.8 % (n?=?108) of families. No statistical differences were noted between the data collected on each primary care unit. In the second phase of the study, 136 families (2.9 %) from the total of families interviewed in phase 1 were selected due to the presence of three or more individuals with cancer in the family. Among those, only 73 families attended genetic counseling. Comparison between the data obtained by the CHA and the medical geneticists shows complete agreement in 36 cases (49.3 %), partial agreement in 25 cases (34.2 %) with more detailed information in the CHA sheets, discordance in 4 cases (5.5 %), and not possible to correlate in 8 cases due to identification inconsistency. Risk assessment for cancer was calculated based on the criteria adopted by Scheuner et al. (Genet Med 12(11):726-735, 2010) and revealed that 50.0 % of the families were classified as having a weak risk, 36.1 % a moderate risk, and 13.8 % were considered of high risk. Concerning known hereditary cancer syndromes, we found one family that met the criteria for breast and ovary hereditary cancer (1.4 %) and one family with non-polyposis hereditary colon cancer as revised by Bethesda protocol. Such preliminary results indicated that the Brazilian Primary Health Care system based on the CHA framework can be an effective entrance into the Unified Brazilian Health Care System (SUS-Brazil) for individuals with genetically determined diseases, such as familial cancer. Families with a history of three or more cases of cancer and considered of high risk for familial cancer could be referred to a tertiary health center for proper oncogenetic counseling. PMID:25063732

Vieira, Daniela Koeller Rodrigues; Attianezi, Margareth; Esposito, Ana Carolina; Barth, Anneliese; Sequeira, Cecília; Krause, Nathália; Oliveira, Vivian; Lucidi, Alexandre; Serao, Cassio; Llerena, Juan C

2015-01-01

197

Dipartimento di Storia dell'arte e Spettacolo. Arti visive, teatro, cinema, danza, spettacolo digitale e musicale, patrimoni culturali.  

E-print Network

disegni di Michelangelo e dei suoi seguaci, dai fondatori fino alla dispersione ". VISTO il decreto n. 2 disegni di Michelangelo e dei suoi seguaci, dai fondatori fino alla dispersione ". presso il Dipartimento

Guidoni, Leonardo

198

Evolution of the Astronomy Concepts Along Basic Education Cycle. (Breton Title: Evolução dos Conceitos de Astronomia no Decorrer da Educação Básica.) La Evolución de los Conceptos de Astronomía Durante la Educación Básica  

NASA Astrophysics Data System (ADS)

Although astronomy is considered one of the older sciences of humanity and that the understanding of its concepts has brought tremendous advances to Science and therefore, to society, it is observed that a significant portion of people live outside of this kind of knowledge. According to the Parâmetros Curriculares Nacionais for basic education, it is the school responsibility the dissemination of scientifically correct concepts, including those related to astronomy. Concerning this issue, we present a survey of 140 students of ninth grade of elementary school and 120 third-grade high-school students from four schools in the region of Passo Fundo/RS. We sought to determine, through a questionnaire consisting of open and multiple choice questions, the knowledge of this group of students about the basic terms and astronomical phenomena, and also verify that the hit rate increases as they advance through the different and progressive grades of primary and secondary education. Overall, the results show that the teaching of astronomy in basic education is facing problems. Of the 20 issues investigated, in 17 the indicators are similar in the correct answers given by students for elementary and middle school, revealing that many misconceptions still remain along basic education. This demonstrates that such issues are not - or are rarely - covered during these two school levels. Thus, we conclude that the discussion of concepts related to astronomy should receive greater emphasis on approaching different subjects, requiring a national action in support of their teaching. It is believed that a national action should be supported by a triple pillar of collective actors: the scientific community, semi-professional astronomy community and the school community. Finally, this pillar would be the basis for future discussions related to the performance of these protagonists as a means to promote active changes in the curricular structure, providing, in more effective ways, the learning of astronomy in basic education. Embora a astronomia seja considerada uma das ciências mais antigas da humanidade e ainda que a compreensão de seus conceitos tenha trazido enormes avanços para a Ciência e, consequentemente, para a sociedade, observa-se que uma parcela significativa de pessoas encontra-se à margem desses conhecimentos. De acordo com os Parâmetros Curriculares Nacionais para a Educação Básica, cabe à escola a difusão dos conceitos cientificamente corretos, entre eles os relacionados à área de astronomia. Pertinente a essa questão, apresenta-se uma pesquisa realizada com 140 estudantes do nono ano do ensino fundamental e com 120 estudantes da terceira série do ensino médio de quatro escolas da região de Passo Fundo/RS. Buscou-se averiguar, por meio de um questionário composto de questões abertas e de múltipla escolha, o conhecimento desse grupo de estudantes acerca de termos e fenômenos astronômicos básicos e, também, verificar se o índice de acertos cresce à medida que eles avançam nas diferentes e gradativas séries dos ensinos fundamental e médio. De modo geral, os resultados apresentados demonstram que o ensino de astronomia na educação básica enfrenta deficiências. Das 20 questões investigadas, em 17 os índices de acertos são semelhantes nas respostas dadas por estudantes de nível fundamental e médio, revelando que muitas concepções equivocadas permanecem ao longo da educação básica. Isso evidencia que tais temas não são – ou são pouco – abordados durante esses dois níveis de escolarização. Assim, conclui-se que a discussão dos conceitos relacionados com a astronomia deve receber maior ênfase na abordagem dos diferentes conteúdos, sendo necessária uma ação nacional em prol do seu ensino. Acredita-se que essa ação nacional deve estar apoiada em um pilar triplo de atores coletivos: comunidade científica, comunidade astronômica semiprofissional e comunidade escolar. Por fim, esse pilar seria a base para futuras discussões relacionadas à atuação dessas instâncias como meio

Darroz, Luiz Marcelo; da Rosa, Cleci Werner; Becker da Rosa, Álvaro; Samudio Pèrez, Carlos Ariel

2014-07-01

199

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.

2010-03-01

200

Não ao sedentarismo, sim à saúde: contribuições da Educação Física escolar e dos esportes No to sedentarianism, yes to health: contributions of school physical education and sports No al sedentarismo, sí a la salud: contribuciones de la educación física en la escuela y de los deportes  

Microsoft Academic Search

RESUMO: Um dos grandes problemas enfrentados pelos povos no mundo se refere ao sedentarismo. Associado a ele, a obesidade, as cardiopatias, a diabetes e tantas outras doenças aparecem com índices muito preocupantes principalmente nas populações de jovens em idade escolar. A tecnologia parece agravar mais ainda este quadro. Entretanto, a prática da atividade física regular, com orientação, com vestimenta e

Ubiratan Silva Alves

201

Tritium ((3)H) as a tracer for monitoring the dispersion of conservative radionuclides discharged by the Angra dos Reis nuclear power plants in the Piraquara de Fora Bay, Brazil.  

PubMed

Presently, two nuclear power plants operate in Brazil. Both are located at Itaorna beach, Angra dos Reis, approximately 133 km from Rio de Janeiro city. The reactor cooling circuits require the input of seawater, which is later discharged through a pipeline into the adjacent Piraquara de Fora Cove. The radioactive effluents undergo ion-exchange treatment prior to their release in batches, causing the enrichment of (3)H relative to other radionuclides in the discharged waters. Under steady state conditions, the (3)H gradient in the Piraquara de Fora waters can be used to determine the dependence of the dilution factor on the distance from the discharge point. The present work describes experiments carried out at the reactor site during batch release episodes, including time series sampling at the discharge point and surface seawater sampling every 250 m to a distance of 1250 m, after a double distillation, the (3)H concentration was measured by liquid scintillation counting applying a Quantulus liquid scintillation spectrometer. The obtained results showed a linear relationship between the (3)H concentration and distance from the discharge point. At 1250 m from the discharge point a dilution index of 1:15 was measured which fits the expected value based on modeling. PMID:24959753

de Carvalho Gomes, Franciane; Godoy, José Marcus; de Carvalho, Zenildo Lara; de Souza, Elder Magalhães; Rodrigues Silva, José Ivan; Tadeu Lopes, Ricardo

2014-10-01

202

DevR (DosR) mimetic peptides impair transcriptional regulation and survival of Mycobacterium tuberculosis under hypoxia by inhibiting the autokinase activity of DevS sensor kinase  

PubMed Central

Background Two-component systems have emerged as compelling targets for antibacterial drug design for a number of reasons including the distinct histidine phosphorylation property of their constituent sensor kinases. The DevR-DevS/DosT two component system of Mycobacterium tuberculosis (M. tb) is essential for survival under hypoxia, a stress associated with dormancy development in vivo. In the present study a combinatorial peptide phage display library was screened for DevS histidine kinase interacting peptides with the aim of isolating inhibitors of DevR-DevS signaling. Results DevS binding peptides were identified from a phage display library after three rounds of panning using DevS as bait. The peptides showed sequence similarity with conserved residues in the N-terminal domain of DevR and suggested that they may represent interacting surfaces between DevS and DevR. Two DevR mimetic peptides were found to specifically inhibit DevR-dependent transcriptional activity and restrict the hypoxic survival of M. tb. The mechanism of peptide action is majorly attributed to an inhibition of DevS autokinase activity. Conclusions These findings demonstrate that DevR mimetic peptides impede DevS activation and that intercepting DevS activation at an early step in the signaling cascade impairs M. tb survival in a hypoxia persistence model. PMID:25048654

2014-01-01

203

A terD domain-encoding gene (SCO2368) is involved in calcium homeostasis and participates in calcium regulation of a DosR-like regulon in Streptomyces coelicolor.  

PubMed

Although Streptomyces coelicolor is not resistant to tellurite, it possesses several TerD domain-encoding (tdd) genes of unknown function. To elucidate the function of tdd8, the transcriptomes of S. coelicolor strain M145 and of a tdd8 deletion mutant derivative (the ?tdd8 strain) were compared. Several orthologs of Mycobacterium tuberculosis genes involved in dormancy survival were upregulated in the deletion mutant at the visual onset of prodiginine production. These genes are organized in a putative redox stress response cluster comprising two large loci. A binding motif similar to the dormancy survival regulator (DosR) binding site of M. tuberculosis has been identified in the upstream sequences of most genes in these loci. A predicted role for these genes in the redox stress response is supported by the low NAD(+)/NADH ratio in the ?tdd8 strain. This S. coelicolor gene cluster was shown to be induced by hypoxia and NO stress. While the tdd8 deletion mutant (the ?tdd8 strain) was unable to maintain calcium homeostasis in a calcium-depleted medium, the addition of Ca(2+) in ?tdd8 culture medium reduced the expression of several genes of the redox stress response cluster. The results shown in this work are consistent with Tdd8 playing a significant role in calcium homeostasis and redox stress adaptation. PMID:25535276

Daigle, François; Lerat, Sylvain; Bucca, Giselda; Sanssouci, Édith; Smith, Colin P; Malouin, François; Beaulieu, Carole

2015-03-01

204

DOS/Russian - US program overview  

SciTech Connect

This paper describes the organization and describes the objectives for the science and technology agreements between the U.S.A. and Russia. The Gore-Chernomyrdin Commission objectives and the Civilian Research and the Development Foundation for the Independent States of the former Soviet Union (CRDF) are discussed.

Pifer, M.L.

1996-04-01

205

Geometria muito alm dos Gregos Jairo Bochi  

E-print Network

.C.), . . . · René DESCARTES (1596­1650) · Isaac NEWTON (1643­1727), Gottfried LEIBNIZ (1646­1716) Jairo Bochi (Depto­1727), Gottfried LEIBNIZ (1646­1716) · Carl F. GAUSS (1777­1855) Jairo Bochi (Depto. de Matemática) Geometria muito.C.), . . . · René DESCARTES (1596­1650) · Isaac NEWTON (1643­1727), Gottfried LEIBNIZ (1646­1716) · Carl F. GAUSS

Lewiner, Thomas (Thomas Lewiner)

206

Marx y Keynes: ¿dos teoría incompatibles?  

Microsoft Academic Search

En 1642, el mismo año en que moría el destacado astrónomo italiano Galileo Galilei, nacía en Inglaterra el genial matemático y fisico Isaac Newton. Esta rara coincidencia marcaría el desplazamiento del centro de la actividad académica en las ciencias fisicas del mediterráneo a la Europa septentrional, pero también señalaría la continuidad del desarrollo científico y el incontenible y acelerado avance

Jairo Sánchez

1984-01-01

207

GESTÃO DOS RECURSOS HÍDRICOS E HIDROVIAS  

Microsoft Academic Search

A sectional Project may induce future needs on a way that they make it be treated like a component of a system that deals with multiplying purposes. Helping the transportation section, the project of a waterway may induce the appearance of new needs of water like for example the domestic supply of new urban populations, the generation of hydroeletric power,

Dilaelson Rego Tapajós

208

A CONTINUIDADE TÓPICA NA LINGUAGEM DOS QUADRINHOS  

Microsoft Academic Search

This study focuses on the management of t he discoursive topic in sequences of comic strips a nd it is inscribed within the research area dedicated to continuum oral\\/ written. Taking a funcionalist perspective, in special that od Textual Linguistics , the study considers the topic not a simple, discr ete function, but a complex functional domain, a scalin g

Maria da Penha; Pereira LINS

209

Privatized Housing Dos and Don'ts.  

ERIC Educational Resources Information Center

Offers tips for higher education institutions on navigating the relationship with a privatized student housing developer: don't assume the project costs nothing, do understand the difference between your goals and the developer's, do create a feasibility study, don't treat every relationship the same, do put the student first, and don't forget the…

Milshtein, Amy

2003-01-01

210

POTENCIAL PARA A UTILIZAÇÃO DE SITEMAS DE WETLANDS NO TRATAMENTO DE ÁGUAS RESIDUÁRIAS: UMA CONTRIBUÍÇÃO A SUSTENTABILIDADE DOS RECURSOS HÍDRICOS NO BRASIL1 Potential for the Use of Wetland Systems in Wastewater Treatment: A Contribution to Sustainability of Water Resources in Brazil  

Microsoft Academic Search

4 D.S. - DEC\\/UFV, . Resumo: Há uma estreita relação entre qualidade de vida, sustentabilidade dos recursos hídricos e controle de cargas poluidoras. Uma gama de doenças está relacionada à qualidade da água utilizada; estima-se que até 10% do tempo útil de trabalho no mundo seja desperdiçado devido às condições da água utilizada. O grande déficit nos serviços de saneamento

Aníbal da Fonseca Santiago; Maria Lúcia Calijuri

211

PICHAÇÃO: A EFICÁCIA DOS TRATAMENTOS PREVENTIVOS NA LIMPEZA DOS REVESTIM ENTOS CERÂMICOS DE FACHADA  

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

212

INVESTIGAÇÃO DIGITAL DOS PROJETOS DO MESP: A BUSCA DOS VESTÍGIOS DO MODERNISMO BRASILEIRO  

Microsoft Academic Search

This paper aims to demonstrate how the design process analysis of an important architectural icon of the city of Rio de Janeiro - the Ministry of Education and Public Health, MESP - allows the understanding of how the decisions taken during the design process synthesizes a way those involved in the project see the world, through an architectural artifact. This

José Ripper Kós; José Barki; Roberto Segre; Andréa Borde; Naylor Vilas Boas

213

Actividad Solar Desde EL Espacio  

NASA Astrophysics Data System (ADS)

RESUMEN. Se describen los principales descubrimientos realizados por los arti+iciales con instrumentos dedicados a la observaci6n del Sol, durante los dos ultimos ciclos de su acti vi dad. La observaci6n el espacio ha permitido cubrir todas las zonas del espectro no observables desde tierra1 desde el ultravioleta hasta la radiaci6n gamma. Se hace referencia, en particular, a los resultados producidos por los dos grandes observatorios: el Skylab y el SMM. Este ultimo incluy6 un conjunto de instrumentos especialmente coordinados para observar en detalle las fulguraciones solares. Es un resumen para astr6nomos no especializados en la fisica solar, en el que se muestra que la gran riqueza del material observacional acumulado ha resuelto problemas preexistentes y, al mismo tiempo, ha abierto numerosos interrogantes a los que se buscar respuesta con la instrumentaci6n en desarrollo. Finalmente, se mencionan las caracteristicas de los proyectados para la pr6xima decada. : The main discoveries performed by artificial satellites instrumented for the observation of the Sun, during the last two cycles of its activity, are described. The space observations allowed of almost all the spectral regions which are not observable from the ground, from the ultraviolet to the gamma radiation. In particular, we ref er' to the two large solar space observatories: the Skylab and the SMM. The last one included a set 0+ coordinated instruments to observe in detail the solar flares. This is a summary for astronomers not dedicated to solar physics, where we show that the of observational material have solv# d many of the preexistent problems but, at the ame time, it opened many new questions to which the improved instrumentation will try to answer. , the characteristics of the satellites planned the next decade are mentioned. Key : SUN-ACTIVITY - SUN-CORONA - SUN-X-RAYS

Rovira, M. G.

1990-11-01

214

Capacitacion de educadores para areas marginales--I: Caracteristicas y necesidades educativas de los ninos, jovenes y adultos en las poblaciones menos favorecidas, rurales y urbanas. Tercera edicion (Preparation of Educators for Marginal Areas--I: Educational Needs and Characteristics of Children, Youth and Adults in Disadvantaged Populations, Rural and Urban. Third Edition).  

ERIC Educational Resources Information Center

Forty percent of the families in Latin America have an income which does not provide essential necessities. Two-thirds of poor families live in the countryside, while the remainder reside in urban slums. The key variable in explaining poverty is education. Without education these families have irregular, unstable, and low paying employment…

Tedesco, Juan Carlos

215

Establishing the Empirical Relationship Between Non-Science Majoring Undergraduate Learners' Spatial Thinking Skills and Their Conceptual Astronomy Knowledge. (Spanish Title: Estableciendo Una Relación Empírica Entre el Razonamiento Espacial de los Estudiantes de Graduación de Carreras no Científicas y su Conocimento Conceptual de la Astronomía.) Estabelecendo Uma Relação Empírica Entre o RacioCínio Espacial dos Estudantes de Graduação EM Carreiras Não Científicas e Seu Conhecimento Conceitual da Astronomia  

NASA Astrophysics Data System (ADS)

The astronomy education community has tacitly assumed that learning astronomy is a conceptual domain resting upon spatial thinking skills. As a first step to formally identify an empirical relationship, undergraduate students in a non-major introductory astronomy survey class at a mediumsized, Ph.D. granting, mid-western US university were given pre- and post-astronomy conceptual diagnostics and spatial reasoning diagnostics, Instruments used were the "Test Of Astronomy Standards" and "What Do You Know?" Using only fully matched data for analysis, our sample consisted of 86 undergraduate non-science majors. Students' normalized gains for astronomy surveys were low at .26 and .13 respectively. Students' spatial thinking was measured using an instrument designed specifically for this study. Correlations between the astronomy instruments' pre- to post-course gain scores and the spatial assessment instrument show moderate to strong relationships suggesting the relationship between spatial reasoning and astronomy ability can explain about 25% of the variation in student achievement. La comunidad de educación en astronomía ha supuesto de forma tácita que el aprendizaje de la astronomía consiste en un dominio conceptual fundamentado en el razonamiento espacial. Como un primer paso para identificar formalmente una relación empírica entre estas dos cosas, utilizamos como muestra los estudantes de graduación de carreras no científicas de un curso experimental en una universidad norteamericana del medioeste de porte mediano con programa de Doctorado em curso, en el cual estos estudiantes se sometieron a un diagnóstico de razonamiento espacial y conceptos astronómicos antes e después del mismo. Las herramientas utilizadas fueron el Test Of Astronomy Standards (TOAST) y el cuestionario What do you know? Utilizando solo los datos completamente consistentes para este análisis, nuestra muestra consistió en 86 estudantes de graduación. Las mejoras, depués de normalizadas, en el desempeño de los estudiantes en estos dos asuntos foram pequenas, 0.26 e 0.13 respectivamente. El razonamiento espacial de los estudiantes fue medido utilizando un instrumento específico desarrollado para este trabaljo. Las correlaciones entre los resultados de los tests astronómicos y este instrumento específico, antes y después del curso mostraron una relación entre moderada y fuerte, sugiriendo que la relación entre el razonamiento espacial y el conocimiento astronómico puede explicar hasta un 25% de la variación em el desempeño de los estudiantes. A comunidade da educação em astronomia tem suposto de forma implícita que o aprendizado da astronomia consiste em um domínio conceitual fundamentado no raciocínio espacial. Como um primeiro passo para identificar formalmente uma relação empírica entre estas duas coisas, utilizamos como amostra os estudantes de graduação de carreiras não científicas de um curso exploratório em uma universidade norte-americana do meio-oeste de médio porte com programa de Doutorado em andamento, onde estes estudantes foram submetidos a um diagnóstico de raciocino espacial e conceitos astronômicos antes e depois do mesmo. As ferramentas utilizadas foram o Test Of Astronomy Standards (TOAST) e o questionário What do you know? Utilizando somente dados completamente consistentes para esta análise, nossa amostra consistiu de 86 estudantes de graduação. As melhoras, depois de normalizadas, do desempenho dos estudantes nos dois quesitos foram pequenas, 0.26 e 0.13 respectivamente. O raciocínio espacial dos estudantes foi medido utilizando um instrumento específico desenhado para este trabalho. As correlações entre os resultados dos testes astronômicos e este instrumento específico antes e depois do curso mostraram uma relação entre moderada e forte, sugerindo que a relação entre o raciocínio espacial e o conhecimento astronômico pode explicar até um 25% na variação no desempenho dos estudantes.

Heyer, Inge; Slater, Stephanie J.; Slater, Timothy F.

2013-12-01

216

Estudo em microondas do aprisionamento e precipitação de elétrons em explosões solares  

NASA Astrophysics Data System (ADS)

Uma explosão solar é uma variação rápida e intensa do brilho que ocorre nas chamadas regiões ativas da atmosfera, constituídas por um plasma magnetizado com intensa indução magnética. Os modelos de explosões solares atuais, discutidos na literatura, apresentam características de aprisionamento e precipitação de elétrons em ambientes magnéticos simplificados. Neste trabalho, nos propusemos a separar a emissão dos elétrons aprisionados da emissão dos elétrons em precipitação apenas a partir da emissão em microondas, melhorando portanto o controle sobre o conjunto de parâmetros inferidos. A emissão em microondas da população em precipitação é bastante fraca e portanto da nossa base de dados de 130 explosões observadas pelo Rádio Polarímetro de Nobeyama, em sete freqüências, apenas para 32 foi possível separar as duas componentes de emissão com uma boa razão sinal/ruído. A partir de estudos das escalas de tempo das emissões devidas à variação gradual da emissão no aprisionamento e da variação rápida da emissão dos elétrons em precipitação foi possível obter a separação utilizando um filtro temporal nas emissões resultantes. Em nossa análise destas explosões estudamos os espectros girossincrotrônicos da emissão gradual, a qual associamos provir do topo dos arcos magnéticos e da emissão de variação rápida associada aos elétrons em precipitação. Estes espectros foram calculados e dos quais inferimos que a indução magnética efetiva do topo e dos pés foi em média, Btopo = 236 G e Bpés = 577 G, inferidas das freqüências de pico dos espectros em ntopo = 11,8 GHz e npés = 14,6 GHz com leve anisotropia (pequeno alargamento espectral). O índice espectral da distribuição não-térmica de elétrons d, inferido do índice espectral de fótons da emissão em regime opticamente fino, foi de dtopo = 3,3 e dpés = 3,9. Estes parâmetros são típicos da maioria das análises realizadas em ambiente único de emissão e a relação dos índices espectrais, dpés > dtopo prioriza as interpretações com difusão em ângulo de passo devida a colisões Coulombianas. Nesta difusão o déficit de elétrons energéticos na precipitação seria uma conseqüência natural da dependência em e-3/2 das colisões elétron-próton (onde e é a energia dos elétrons).

Rosal, A. C.; Costa, J. E. R.

2003-08-01

217

Dos and Don'ts for a Fabulous Pedicure  

MedlinePLUS

... much skin is removed. use a pumice stone, foot file or exfoliating scrub when eliminating thick, dead skin build-up, also known as calluses, on the heel, ball and sides of the feet. Be sure to ...

218

Tratamento das complicações de fraturas diafisárias dos ossos do antebraço  

Microsoft Academic Search

SUMMARY Treatment of complications of diaphyseal fractures of the forearm bones The results of the treatment of 41 cases with complica- tions of the diaphyseal fractures of the forearm bones are presented. The lesions of both bones or isolated bones are analysed separately and the several options of treatment are discussed. The authors followed the basic principle of rees- tablishing

ORTOPEDIA GERAL; ARLINDO G. PARDINI JR; MAURÍCIO P. CALAIS OLIVEIRA

219

Dos and Don'ts of Writing Presidential Contracts  

ERIC Educational Resources Information Center

In the not-so-distant past, an employment agreement between a university president and a governing board was often nothing more than a handshake. Today, formal contracts are requirements for presidents, with boards and presidents typically relying on lawyers to extensively document terms of employment, salary and benefits, and, perhaps most…

Fain, Paul

2006-01-01

220

Web-Based Mathematics: Some "Dos" and "Don'ts"  

ERIC Educational Resources Information Center

This case study describes an "out of field" teacher's use of the Internet to teach a range of mathematical topics in a modified Year 8 mathematics class. It highlights the importance of three factors for implementing a discernible web-based teaching strategy: appropriate choice of web objects, effective "virtual" pedagogy, and technical support…

Loong, Esther Yook-Kin

2011-01-01

221

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.

Dr. Charles Ward

222

Comit Organizador Coordenadores dos Programas de Ps-Graduao  

E-print Network

Patologia Coordenação: Profa. Karin S. Gonçalves Cunha e@vm.uff.br Site: www.patologia.pos.uff.br Programa de Pós-Graduação em Odontologia Coordenação-Graduação em Patologia Bruno Leal Programa de Pós-Graduação em Patologia Julio Borges

Souza, Max O.

223

www.uh.edu/dos/hdbk Student Handbook  

E-print Network

. Hollingsworth, Secretary Jacob M. Monty Nandita V. Berry Tilman J. Fertitta Spencer D. Armour, III Roger F Khator, Chancellor John J. Antel, Senior Vice Chancellor for Academic Affairs Carl Carlucci, Executive, Senior Vice President for Academic Affairs and Provost Carl Carlucci, Executive Vice President

Azevedo, Ricardo

224

VII SEMINRIO TCNICO CIENTFICO DE ANLISE DOS DADOS DO DESMATAMENTO  

E-print Network

MonitoramentoMonitoramentoMonitoramento ---- MoratMoratMoratMoratóóóória da soja (Palsar + Landsat )ria da soja (Palsar + Landsat )ria da soja (Palsar + Landsat )ria da soja (Palsar + Landsat ) #12;Monitoramento: MoratMonitoramento: MoratMonitoramento: MoratMonitoramento: Moratóóóória da soja (2008)ria da soja (2008)ria da soja (2008)ria da soja (2008

225

Exercise beyond menopause: Dos and Don'ts.  

PubMed

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

2011-07-01

226

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:\\/\\/www.biotaneotropica.org.br\\/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

227

Exercise beyond menopause: Dos and Don’ts  

PubMed Central

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

2011-01-01

228

Divorce Matters: Visitation Dos and Don'ts  

MedlinePLUS

... N.Y. . . . and justice for all The Iowa Cooperative Extension Service’s programs and policies are consistent with ... formats for ADA clients. Issued in furtherance of Cooperative Extension work, Acts of May 8 and June ...

229

Lus Carlos dos Santos Marujo Language Technologies Institute  

E-print Network

University, August 2011 ­ Present Graduate Research Assistant Advisors: Anatole Gershman, Jaime Carbonell 2011 Graduate Research Assistant Advisor: Anatole Gershman, Jaime Carbonell, and João P. Neto of clicks during an hour in Sapo portal (Most visited Portuguese Web Portal ­ www.sapo.pt) - 4th out of 26th

230

RELAO DOS CARGOS / LOTAES CARGO LOTAO NOME OBSERVAO  

E-print Network

Analista de Tecnologia da Informação SRH Analista de Tecnologia da Informação SPL Analista de Tecnologia da Informação UAB Analista de Tecnologia da Informação UAB Analista de Tecnologia da Informação CME Analista de Tecnologia da Informação DEG Alex Dantas Arquiteto e Urbanista PRC Camila Duarte Veras Arquiteto e Urbanista

Maier, Rudolf Richard

231

Darío y Lugones: Dos visiones modernistas de Pierrot  

E-print Network

con epifonemas que se traducen como correlatos de los paradigmas en oposición hasta ahora analizados: "¡Pícara Colombina!" en contraste con "¡Pobre Pierrot!" En el cuadro IV continúa el Carnaval en una profusión de dis fraces y caretas a modo de...

Sarabia, Rosa

1987-10-01

232

A Temática dos Resíduos no Comércio Internacional Agroindustrial  

Microsoft Academic Search

The Sanitary and Phytosanitary Measures applicatio n is tracked by the WTO through the SPS Agreement. Currently, they are a ve ry important way to restrict international trade of several products. In general , they are justified by the the goal of guaranteeing minimum condition for consumption or utilization, ensuring the human,

MONA LISA MENDES DA SILVA; SÍLVIA HELENA; GALVÃO DE MIRANDA

233

GEOMETRIA DIFERENCIAL -FICHA 7 JOO PEDRO MARTINS DOS SANTOS  

E-print Network

1, · · · , vd} uma base para TpM e seja {v 1, · · · , v d} a respectiva base dual para T p M. Seja : TpM T p M o isomorfismo dado por (v) = iv para v TpM. Seja A a matriz que representa nas bases. Identifique-se os espaços TpM e T p M com R2n identificando as bases {v1, · · · , v2n} e {v 1, · · · , v 2n

Natário, José

234

Democracia e participação na gestão dos recursos hídricos no Brasil  

Microsoft Academic Search

This article analyzes the strengthening of public space and the opening of public management to participation of civil society in the preparation of public policies. It also analyzes the always complex and contradictory institutionalization of innovative practices that establish ruptures with the predominant dynamic in areas and sectors of administration, specifically in environmental management. It analyzes the shared public management

Pedro Roberto Jacobi; Fabiana Barbi

235

La teoría económica y financiera del precio: dos enfoques complementarios  

Microsoft Academic Search

resumen El análisis de los precios ha sido abordado desde varios enfoques y por ello su tratamiento difiere. No puede decirse que éstos son excluyentes; por el contrario, existe una fuerte relación entre ellos, la que, sin embargo, poco se reconoce en el ámbito académico y empresarial de los teóricos de las finanzas y el marketing, por desconocer la fundamentación

Javier Bernardo Cadena Lozano

2011-01-01

236

Freqüência dos insetos na polinização e produção de algodão  

Microsoft Academic Search

Pollinators frequency on cotton flowers and production. Insects frequency on cotton pollination and production. The present experiment was conducted at University Centre Moura Lacerda, Ribeirão Preto, state of São Paulo, and had the aim of studying the insects frequency and behaviour on cotton flowers (Gossypium hirsutum L.) as well as the collection type (nectar and\\/or pollen) of these insects and

Engenheiro Agrônomo

237

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

2007-01-01

238

Resampling the peak, some dos and don'ts.  

PubMed

Resampling techniques are used widely within the ERP community to assess statistical significance and especially in the deception detection literature. Here, we argue that because of statistical bias, bootstrap should not be used in combination with methods like peak-to-peak. Instead, permutation tests provide a more appropriate alternative. PMID:25308501

Zoumpoulaki, Alexia; Alsufyani, Abdulmajeed; Bowman, Howard

2015-03-01

239

vibrant v.9 n.1 julie a. cavignac Propomos avaliar a importncia dos estudos americanistas e o papel dos pes-  

E-print Network

trabalhos ame- ricanistas no Brasil e na França. É ainda possível definir os limites de uma antropologia que índios. Palavras-chave: Americanismo; Antropologia francesa; Museologia Resumé Il s'agit évaluer l

Paris-Sud XI, Université de

240

CATALOGO ILUSTRADO DE LOS MELOIDAE (COLEOPTERA) DE NICARAGUA Y OTRAS ESPECIES CONTENIDAS EN LAS COLECCIONES DEL MUSEO ENTOMOLOGICO DE LEON  

Microsoft Academic Search

Se conocen alrededor de 3000 especies de Meloidae a nivel mundial. Los Meloidae son en general alargados, de elitros blandos. El pronoto es más estrecho que la cabeza y más estrecho que los élitros, lo que le da una forma muy caracteristica. Miden de 10 a 40 mm. Algunos Meloidae adultos son plagas menores de cultivos, algunos Epicauta comen las

Por Jean-Michel MAES; Jeffrey P. HUETHER

241

PROGRAMA PARA LA VERIFICACION DE LA TECNOLOGIA AMBIENTAL - CULTIVANDO ASOCIACIONES PARA EL INCREMENTO DE LAS SELECCIONES DE TECNOLOGIAS AMBIENTALES A LOS SECTORES PUBLICO Y PRIVADO EN LOS ESTADOS UNIDOS Y EN EL EXTERIOR (EPA/600/F-97/005A)  

EPA Science Inventory

La meta del ETV es verificar, a travs de una evaluacin de informacin objectiva y de calidad, las caracteristicas del desempeo de tecnologas comerciales ambientales. As el ETV proporciona a los compradores y los licenciadores potenciales una valoracin imparcial y creble d...

242

Con il contributo della Compagnia di San Paolo Graduate Conference  

E-print Network

e Reggio Emilia) Gaslighting: The Case of Epistemic Oppression 11-11.30 Coffee Break: Aula Leoni 11'Doherty (University of South Wales/Università di Milano) Piet Goemans (FINO/Università di Pavia) Political Liberalism

Segatti, Antonio

243

Modelizacion, control e implementacion de un procesador energetico paralelo para aplicacion en sistemas multisalida  

NASA Astrophysics Data System (ADS)

Cualquier sistema electronico que incluya un procesado o tratamiento de la senal, y ademas, algun tipo de actuador mecanico generalmente necesita, como minimo, dos tensiones diferentes de alimentacion. Excluyendo los sistemas de alimentacion distribuida, la solucion tecnica mas utilizada para proporcionar dos o mas tensiones consiste en las fuentes de alimentacion multisalida. En una fuente de alimentacion multisalida los diferentes circuitos que conforman cada salida comparten un mismo transformador de potencia optimizando coste, masa, y volumen. Las ventajas obtenidas con este procedimiento tienen en su contra el efecto que sobre cada salida individual provocan las demas en su conjunto debido, principalmente, a los efectos de los elementos parasitos de los componentes. Un cambio de carga en una de las salidas produce un transitorio que es visto por todas las demas como un efecto de impedancia cruzada, y al final del transitorio, la tension de cada salida es diferente respecto a la que tenian antes del transitorio. Este ultimo resultado se conoce como regulacion cruzada. La disminucion de los efectos de la regulacion cruzada ha sido objeto de estudio durante los ultimos anos. El objetivo ha sido el desarrollo de distintas estrategias que permiten, desde disminuir los efectos de la regulacion cruzada hasta los niveles deseables, a eliminarla completamente. El resultado final suele suponer una penalizacion sobre el diseno del sistema directamente proporcional al grado de regulacion a conseguir en las distintas salidas. Entre las soluciones propuestas para eliminar la regulacion cruzada las tecnicas de post-regulacion se han consolidado como la opcion mas aceptada ya que, pueden aplicarse a cualquier convertidor y no suponen ninguna complejidad adicional a la hora de plantear el diseno. En esta Tesis Doctoral se abordara el estudio de la tecnica conocida como postregulacion mediante transformador controlado, que si bien se ha empleado en convertidores resonantes, su modelizacion, y aplicacion en convertidores PWM, esta aun por estudiar y valorar. El primer Capitulo consiste en una breve introduccion al problema de la regulacion cruzada y la impedancia cruzada para posteriormente describir las tecnicas de post-regulacion actualmente mas empleadas, con especial atencion al post-regulador con transformador controlado. El Capitulo segundo trata del estudio de las caracteristicas estaticas del postregulador con transformador controlado. Partiendo de los estudios disponibles sobre el postregulador se plantean mejoras en su modo de actuacion y se discuten tres alternativas diferentes para controlar el transformador. Las dos primeras consisten en emplear un convertidor auxiliar Boost en sus dos modos de funcionamiento, continuo y discontinuo. La tercera consiste en controlar el transformador con una tension PWM directamente, sin filtrado. Finalmente se comprueba experimentalmente, para el estado estacionario, el funcionamiento del post-regulador para cada uno de los tres metodos de control. El Capitulo tercero trata de la dinamica de la salida controlada con el post-regulador cuando este emplea un convertidor auxiliar tipo Boost. Mediante la tecnica de promediado de variables de estado se propone el modelo de pequena senal, tanto para el modo continuo como para el modo discontinuo de funcionamiento del convertidor auxiliar. Los resultados mas significativos de esta seccion son las expresiones analiticas de las impedancias cruzadas y de la impedancia de la salida post-regulada. Como complemento al modelo de pequena senal se plantea un modelo de gran senal implementado sobre el simulador Pspice. Con este nuevo modelo se reproducen los resultados obtenidos con el modelo de pequena senal y ademas es posible simular los transitorios en las tensiones de salida ante cambios de carga. La modelizacion del convertidor cuando el transformador se controla con una tension PWM sin filtrar es el objetivo del Capitulo 4. En las secciones siguientes del Capitulo se plantea el correspondiente modelo de gran senal aplicado a un nuevo prototipo exper

Ferreres Sabater, Agustin

244

Título do artigo: A Visão dos Experts e dos Operadores de Varejo sobre a Ambientação de Loja de Auto-serviço Alimentar para o Consumidor da Terceira Idade  

Microsoft Academic Search

The store environment has been deserving more attention from marketing scholars, since the understanding about its influence in the decision-making process for consumers remains a challenge, both within academic, and business environments. From the theoretical basis of the evidence that showed that the retail store environment can shape the behavior of customers, this study seeks to investigate its influence on

Joana Boesche Tomazelli; Marise Mainieri de Ugalde

245

Modelizacion de bosques mediante diagramas de Voronoi Bego~na Abellanas  

E-print Network

Ingenier´ia Forestal, Universidad de C´ordoba, ir1aboab@uco.es Facultad de Inform´atica, Universidad Polit sentidos. Los usos m´as habituales para los gestores son la obtenci´on de predicciones de la producci´on de a la producci´on de madera como a las caracter´isticas futuras del propio bosque as´i como el impacto

Llanos, Diego R.

246

Desarrollo de un mecanismo de serializacion en J2ME  

Microsoft Academic Search

En 1999 aparece Java 2 Micro Edition (J2ME) con el proposito de permitir que aplicaciones Java se ejecuten en dispositivos con capacidad de proceso limitada, como telefonos moviles, pagers, palm pilots, set-top boxes, etc. Debido a limitaciones de recursos y al modelo de seguridad en J2ME, parte de las caracter´isticas propias de Java han desaparecido en la version de Java

Celeste Campo Vazquez; Rosa Ma Garc; Guillermo Diez-Andino

247

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

2010-01-01

248

ANÁLISIS DEL DISCURSO DE UN ENTRENADOR DE FÚTBOL. COMPARACIÓN ENTRE DOS SITUACIONES DIFERENTES DE COMPETICIÓN  

Microsoft Academic Search

We show the analysis of the speech of a soccer trainer during 2 different situations in competition: On one hand, we study the instructions offered before a situation of favorable competition (opposing classified in an inferior position), and on the other hand, a situation of adverse competition (adversary classified in a superior position). We expose categories of analyses used in

J. Viciana

249

To cite this document: Gerbaud, Vincent and Teles dos Santos, Moises and Carrillo Le Roux, Galo  

E-print Network

texture shine Flavor Natural sources End-user The molecular scale 5 #12;Vegetable Oil modeling - Datas Vegetable oil modeling applied for the formulation of structured lipids. (2012) In: Journées chevreul 2012 be sent to the repository administrator: staff-oatao@inp-toulouse.fr #12;Vegetable oil modeling applied

Mailhes, Corinne

250

Francisco regressa a Macau com a Quidgest, 30 anos depois dos pais  

E-print Network

documen- tal, gestão financeira --, o segmento que mais lhe tem interessado em Ma- cau. "Fazemos de raiz, a Quidgest já está a ganhar di- nheiro em Macau. A.C. A Quidgest faz de raiz "todo o sistema de gestão de

Instituto de Sistemas e Robotica

251

Dos médicos y una causa: Len Crome y Reginald Saxton en las Brigadas Internacionales  

Microsoft Academic Search

Una de las dimensiones más impresionantes, más duraderas y menos conocidas de las Brigadas Internacionales era la aportación de sus servidos médicos. Las aportaciones de los distintos médicos, españoles e internacionales, fueron de una importancia colosal en el desarrollo posterior de la medicina traumatològica, en guerra y en paz. Menos conocida fue la labor abnegada de conductores de ambulancias, enfermeras

Paul Preston

2004-01-01

252

Conflictos culturales y estrategias discursivas en dos textos de la América colonial hispana  

Microsoft Academic Search

Nueva crónica by Guamán Poma de Ayala and Rethorica Christiana by Diego de Valadés constitute politically opposite texts, while remaining both very representative of the cultural interactions and conflicts characteristic of the colonial context from which western universalism emerged. In Ayala numerous forms of discursive subversion can be recognized, as well as a protest defying both colonial wisdom and power

Gonzalo Abril

253

Controle químico da cigarrinha-do-milho e incidência dos enfezamentos causados por molicutes  

Microsoft Academic Search

Resumo - O objetivo deste trabalho foi verificar a eficiência do tratamento inseticida de sementes de milho no controle de Dalbulus maidis e na redução da incidência de enfezamentos em viveiro telado e em campo. Foram realizados dois experimentos; no experimento 1, em viveiro telado, sementes de milho foram tratadas com imidacloprid e thiamethoxan e, nessas plantas, cigarrinhas sadias, cigarrinhas

Charles Martins de Oliveira; Elizabeth de Oliveira; Marcus Canuto; Ivan Cruz

2007-01-01

254

Classificação Contextual de Imagens utilizando Campos Aleatórios Markovianos e Teoria dos Jogos  

Microsoft Academic Search

A classificação de imagens é uma tarefa de fundamental importância em diversas aplicações nas áreas de processamento de imagens, reconhecimento de padrões e visão computacional, dentre as quais é possível citar: sensoriamento remoto, auxílio a diagnóstico de doenças a partir da análise de imagens médicas, detecção de objetos, entre outras. Basicamente, a proposta deste trabalho consiste na classificação de imagens

Alexandre L. M. Levada; Nelson D. A. Mascarenhas; Alberto Tannús

255

Ortopedia funcional dos maxilares, respiração bucal e distúrbios respiratórios do sono em  

Microsoft Academic Search

SUMMARY The relationship between facial morphology oral breathing and sleep breathing disorder has been discussed, but the relation does not have been supported scientifically yet. The article's objectives are: actualize the knowledge about the relationship between oral breathing, sleep breathing disorder and several malocclusions; to emphasize the importance of the treatment among the several disciplines looking for the best prognostic

Débora Aparecida Lentini-Oliveira; Fernando Rodrigues Carvalho; Marco Antônio Cardoso Machado; Lucila Bizari; Fernandes Prado; Gilmar Fernandes

256

A Review of MS-DOS Bulletin Board Software Suitable for Long Distance Learning.  

ERIC Educational Resources Information Center

This paper describes the advantages of using computer bulletin boards systems (BBS) for distance learning, including the use of the New York City Education Network (NYCENET) to access various databases and to communicate with individuals or the public. Questions to be answered in order to determine the most appropriate software for running a BBS…

Sessa, Anneliese

257

ABSORCION DE NITROGENO POR CEBADA CERVECERA EN DOS SUELOS DEL SUR BONAERENSE, ARGENTINA  

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,

MA LAZZARI; MA CANTAMUTTO; RA ROSELL; FE MÖCKEL; ME ECHAGÜE

258

PERDIDA DE NUTRIENTES POR EROSION HIDRICA EN DOS SUELOS DEL CALDENAL PAMPEANO  

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.

EO ADEMA; FJ BABINEC; N PEINEMANN

259

Projeto do sistema anti-ressonante da fiação dos transdutores para o detector Mario Schenberg  

NASA Astrophysics Data System (ADS)

O detector de ondas gravitacionais Mario Schenberg está sendo projetado e construído pelo grupo Gráviton. Sua construção está ocorrendo no Laboratório de Estado Sólido e Baixas Temperaturas (LESBT) da Universidade de São Paulo, na cidade de São Paulo. Esse detector possui uma massa ressonante esférica de cobre-alumínio, com 65 cm de diâmetro, pesando aproximadamente 1150 Kg, suspensa por um sistema de isolamento vibracional, que se encontra em fase de testes preliminares. A real eficácia desse sistema, entretanto, só poderá ser comprovada quando o detector estiver aparelhado com, pelo menos, um transdutor eletromecânico de altíssima sensibilidade acoplado à massa ressonante. Neste momento, não só este sistema de isolamento vibracional será posto em teste, como o do projeto da fiação que transporta os sinais de microondas até os transdutores e destes para a pré-amplificação. Apesar dessa fiação ter sido projetada para não apresentar nenhum contato com a superfície esférica da antena, de maneira a não haver nenhuma transmissão de ruído vibracional do laboratório para esta, deve-se minimizar o ruído microfônico produzido nessa fiação por oscilações mecânicas, uma vez que ela não utiliza nenhum sistema de isolamento vibracional. Com o intuito de resolver este problema, projetamos uma estrutura, formada por pequenos cilindros conectados por barras, a qual não terá nenhuma ressonância mecânica na faixa de freqüências de interesse para detecção (3000 - 3400 Hz). Desta forma, as vibrações nessa faixa não serão amplificadas. O projeto foi feito usando iterativamente, de maneira a otimizar os resultados obtidos, o programa de elementos finitos Msc/Nastran. Através de simulações feitas neste programa, determinamos os parâmetros geométricos ideais a serem utilizados, os quais proporcionam a maior região espectral de interesse livre de ressonâncias.

Vieira, S. J.., Jr.; Melo, J. L.

2003-08-01

260

ANÁLISE MULTIDIMENSIONAL DOS PARÂMETROS DE PROCESSO E PROPRIEDADES MECÂNICAS DE BOBINAS A QUENTE 1  

Microsoft Academic Search

The aim of this work was to identify the correlations between mechanical properties of C-Mn and microalloyed steel hot coils and its chemical composition and hot strip mill process parameters through statistical multidimensional analysis. In both cases it was verified that the influence of chemical composition was greater than the hot rolling process parameters, specially in the case of microalloyed

Antonio Augusto Gorni

261

Propriedades mecânicas dos grãos de soja em função do teor de água  

Microsoft Academic Search

This work aimed to determine the effect of the soybean grain moisture content in the maximum compression force values for a fixed deformation (2 mm) and the proportional deformity modulus under different compression positions. Soybean grains varying from 0.58 to 0.093 (d.b.) of moisture content were compressed uniaxialy between two parallel plates towards its three main dimensions under compression speed

Deise M. Ribeiro; Paulo C. Corrêa; Bruno F. Furtado; André L. D. Goneli; Osvaldo Resende

2007-01-01

262

The Puerto Ricans--Two Communities, One Culture. (Los Puertorriquenos--Dos Comunidades, Una Cultura.)  

ERIC Educational Resources Information Center

Puerto Rican roots stem from the ethnic mixture of Indians, Europeans, and Africans. This article describes the advent of each of the groups on the island, the historical and cultural impact each made, and the retention of heritage among Puerto Rican migrants to the U.S. (DS)

Vivo, Paquita

1980-01-01

263

Buscando Su Voz en Dos Culturas = Finding Your Voice in Two Cultures.  

ERIC Educational Resources Information Center

An administrator/former teacher ponders difficulties of living in two cultures: a professional world that respects her degrees and credentials and a Latina world that questions pursuit of the "American dream." Although she used her American voice to coax a Latina student back to school, she sympathized with the mother's family-centered aspirations…

Cline, Zulmara

1998-01-01

264

Unidad: Las influencias culturales en el arte mexicana (Unit: Cultural Influences in Mexican Art). Dos semanas.  

ERIC Educational Resources Information Center

This two-week unit, appropriate for bilingual education settings as well as foreign language programs, deals with the three primary cultural influences found in Mexican contemporary art. The multisensory materials, pragmatic focus, and direct creative student involvement are designed to make it a microcosmic, real-life experience. The first part…

Finere, Neal

265

CRECIMIENTO DE PLANTAS INJERTADAS JÓVENES DE DOS CULTIVARES DE NÍSPERO DESPUÉS DEL PRENDIMIENTO  

Microsoft Academic Search

Growth of young grafted plants of two cultivars of sapodilla after the healing The grafting, growth and branching of the main axis of sapodilla (Manilkara zapota van Royen) was studied in the cvs. Santiago and Delfina. The trial was carried out in the experimental field of the Graduate School of Horticulture, in Tarabana, Lara State (10º 01' N, 500 masl),

Norkys Mez; Dámaso Bautista

266

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.

2003-08-01

267

A ruptura dos direitos humanos na filosofia política de Hannah Arendt  

Microsoft Academic Search

The aim of this paper is to discuss Hannah Arendt's critique of human rights according to the Western tradition. With this objective, we analyze its foundations from the social contract philosophers such as Hobbes, Locke, and Rousseau, as well as its implementation in policy statements of the American and French revolutions. Human rights tended to be confused with the rights

Fausto Brito

2010-01-01

268

Instrumentos Integradores Do Ensino, Pesquisa E Extensão: O Caso Dos Grupos De Pesquisa  

Microsoft Academic Search

Resumo: A pesquisa é a mola propulsora para a construção de conhecimento e, por isso mesmo, é essencial para o professor-pesquisador compreender e refletir sobre o objeto teórico-prático que vivencia na docência. Além disso, estabelece uma conexão com o aluno de graduação, fazendo com que ele aprenda a pensar e refletir sobre as questões inerentes a área de formação. Nesse

Marta Valentim

269

RERSE DE LA GUERRA: IRO A Y DECO STRUCCI DEL MITO E DOS OVELAS AMERICA AS  

E-print Network

Sapienza"­Università di Roma diletta.paladini@gmail.com Jorge Ibargüengoitia y E.E. Cummings participaron y vehículo expresivo de tal sistema. E.E. Cummings e Jorge Ibargüengoitia son hijos de un entorno habitación" de Cummings. A nivel sustancial se individua un bagaje común lo suficientemente amplio y

Boyer, Edmond

270

Land disposal of San Luis drain sediments, Panoche Water District, South Dos Palos, California  

SciTech Connect

Lawrence Berkeley National Laboratory (LBNL), LFR Levine-Fricke (LFR), the U.S. Bureau of Reclamation (USBR) and the Panoche Water District, have completed a pilot-scale test of the viability of land application of selenium- (Se-) enriched San Luis Drain (SLD) sediments. The project was initiated in October 1998 by LBNL. LFR assumed the role of primary subcontractor on the project in July 2001. Substantial portions of this report, describing work performed prior to November 2000, were previously prepared by LBNL personnel. The data set, findings, and recommendations are herein updated with information collected since November 2000. Local land disposal is an attractive option due to its low cost and the proximity of large areas of available land. Two modes of disposal are being tested: (1) the application to a nearby SLD embankment, and (2) the application to and incorporation with nearby farm soils. The study of these options considers the key problems that may potentially arise from this approach. These include disturbance of SLD sediments during dredging, resulting in increased downstream Se concentrations; movement of the land-applied Se to groundwater; reduced productivity of farm crops; and Se uptake by wild and crop plants. This report describes field and laboratory activities carried out from 1998 through February 2002, and results of these investigations.

Zawislanski, Peter; Benson, Sally; TerBerg, Robert; Borglin, Sharon

2002-07-01

271

33 CFR 106.250 - Declaration of Security (DoS).  

Code of Federal Regulations, 2010 CFR

...signed. (d) At MARSEC Levels 2 and 3, the FSOs...section. (e) At MARSEC Levels 1 and 2, FSOs of OCS facilities that frequently interface with the same...for a specific MARSEC Level; (2) The effective...MARSEC Level 1 does not exceed 90 days; and...

2010-07-01

272

33 CFR 104.255 - Declaration of Security (DoS).  

Code of Federal Regulations, 2010 CFR

... (d) At MARSEC Levels 2 and 3, the Master... (e) At MARSEC Levels 1 and 2, VSOs of vessels that frequently interface with the...the specific MARSEC Level; (2) The effective...MARSEC Level 1 does not exceed 90 days; and...

2010-07-01

273

33 CFR 105.245 - Declaration of Security (DoS).  

Code of Federal Regulations, 2010 CFR

... (d) At MARSEC Levels 2 and 3, the FSOs... (e) At MARSEC Levels 1 and 2, FSOs of facilities that frequently interface with the...a specific MARSEC Level; (2) The effective...MARSEC Level 1 does not exceed 90 days; and...

2010-07-01

274

NASA Glen Steady-State Heat Pipe Code Users Manual, DOS Input. Version 2  

NASA Technical Reports Server (NTRS)

The heat pipe code LERCHP has been revised, corrected, and extended. New features include provisions for pipes with curvature and bends in "G" fields. Heat pipe limits are examined in detail and limit envelopes are shown for some sodium and lithium-filled heat pipes. Refluxing heat pipes and gas-loaded or variable conductance heat pipes were not considered.

Tower, Leonard K.

2000-01-01

275

A ACÇÃO DOS PIPKRAKES NA MORFOGÉNESE ACTUAL NA SERRA DO GERÊS  

Microsoft Academic Search

NEEDLE ICE EROSION IN THE SERRA DO GERÊS (N W PORTUGAL ) - After a short review of the studies on needle ice in the world, its morphogenetic significance in the Serra do Gerês is discussed. Several needle ice induced morphological features were identified in the field. Nevertheless, cryogenic features are in most cases ephemeral, being destroyed by the action

GONÇALO TELES VIEIRA

276

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

277

Produção de clones de taro em função dos tipos de mudas  

Microsoft Academic Search

Yield of taro clones as a function of cutting types Fresh mass yield of plants of two taro clones (Chinês and Macaquinho) was evaluated to obtain a better gross income for producers in Dourados, Brazil. The taro clones were propagated through four cutting types (small cormel (RFP), half RFP, big cormel (RFG) and half RFG), arranged as a 2x4 factorial

Néstor A. Heredia Zárate; Maria do Carmo Vieira

2003-01-01

278

"Being Present in the World": A Conversation with Professor Jose Marques dos Santos  

ERIC Educational Resources Information Center

The University of Porto was awarded the European University Information Systems (EUNIS) Elite Award for its innovative application of information technology to a European university. This university--nearly one hundred years old--is pressing hard, on a number of fronts, to place itself in the top rank of European universities. The Rector of the…

Katz, Richard N.; Dodds, Ted

2008-01-01

279

Ion Specificity and Micellization of Ionic Surfactants: A Monte Carlo Alexandre P. dos Santos,*,  

E-print Network

based on the previously developed theory of the interfacial tensions of hydrophobic interfaces. INTRODUCTION Micelles are important for various applications, such as drug carriers for the treatment of tumors a hydrophobic surface, kosmotropes remain strongly hydrated and are repelled from the interface. On the other

Levin, Yan

280

Zooarqueologia dos mamferos aquticos e semi-aquticos da Ilha de Santa Catarina, sul do Brasil  

E-print Network

, moluscos e vegetais (SCHEEL-YBERT 2000). Os cetáceos em especial eram utilizados como fonte de alimento no processamento do animal, novas formas de distribuição do produto dentro das comunidades, economia e relação

Simões-Lopes, Paulo César

281

Bases morfofisiológicas para maior tolerância dos híbridos modernos de milho a altas densidades de plantas  

Microsoft Academic Search

RESUMO O lançamento de híbridos de milho tolerantes ao aumento da densidade de plantas contribuiu para o incremento do potencial produtivo da cultura na segunda metade do século XX. Objetiva-se com esta revisão de literatura discutir características morfológicas, fisiológicas, fenológicas e alométricas que contribuíram para maior adaptação do milho a elevadas densidades de plantas. Os processos de seleção utilizados pelos

Luís Sangoi; Milton Luiz de Almeida; Paulo Regis Ferreira da Silva; Gilber Argenta

2002-01-01

282

Manejo integrado de Hypothenemus hampei bajo dos modelos de capacitación y difusión en México  

Microsoft Academic Search

Integrated pest management of Hypothenemus hampei under two training and extension models in mexico. The quest for alternative training and extension models on integrated pest management for farmers is on the agenda of research institutions and universities. We compared two training and extension models of integrated management of the coffee berry borer Hypothenemus hampei (Ferrari), known as Institutional and Participatory

Ramón Jarquín-Gálvez; Juan F. Barrera; Luis Garcia-Barrios; Falguni Guharay; Leobardo Jiménez-Sánchez

283

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.

1994-01-01

284

ANÁLISIS COMPARATIVO DE LA ALIMENTACIÓN DEL GATO MONTÉS (LYNX RUFUS) EN DOS DIFERENTES AMBIENTES DE MÉXICO  

Microsoft Academic Search

Feeding habits of the bobcat (Lynx rufus) in two different localities of Mexico were studied by the analysis of 197 and 922 scats. Lagomorphs, and rodents were the more important prey items in both places. At El Plomito, state of Sonora, we found 18 different prey species, and the most important were Sylvilagus audubonii (35.5%), Lepus sp. (31.5%), Neotoma albigula

Marcelo ARANDA; Octavio ROSAS; Francisco I. Madero

2002-01-01

285

Metathesis Cascade Strategies (ROM-RCM-CM): A DOS approach to Skeletally Diverse Sultams  

PubMed Central

The development of a ring-opening metathesis/ring-closing metathesis/cross metathesis (ROM-RCM-CM) cascade strategy to the synthesis of a diverse collection of bi- and tricyclic sultams is reported. In this study, functionalized sultam scaffolds derived from intramolecular Diels-Alder (IMDA) reactions undergo metathesis cascades to yield a collection tricyclic sultams. Additional appendage based diversity was achieved by utilizing a variety of CM partners. PMID:20161277

Jeon, Kyu Ok; Rayabarapu, Dinesh; Rolfe, Alan; Volp, Kelly; Omar, Iman

2009-01-01

286

Morfologia dos dentes do bicho-preguiça de coleira (Bradypus torquatus), Illiger, 1811  

Microsoft Academic Search

Tooth morphology of the maned sloth (Bradypus torquatus). The sloths are exclusively herbivores, feeding from leaves, flowers, sprouts, green stalks and fruits, just from two types of tree. The aim of this research was to

Eli Grassi; Rici Azarias

287

Ensuring the relocatability of programs in the operational system DOS YeS  

NASA Technical Reports Server (NTRS)

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 all the programs recorded in the core image library is presented. The modified linkage editor can be included in a relocation dictionary containing data about each address constant at the assembly stage at the request of the programmer. The relocation dictionary increases the dimension of the RL-phase in comparison with the dimension of this same phase when edited by the standard method, making possible the creation of multiphase program complexes. Generation and use of the modified system using Assembly language is described. An example of the use of the system is given, and limitations of the use of the relocatable programs in the modified system are outlined.

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

1979-01-01

288

SNAr-based DOS Strategies for the Facile Synthesis of Benzofused Sultam Libraries  

E-print Network

The overarching goal of this dissertation is the development of strategies and methodologies aimed at the diversity-oriented synthesis of benzofused sultam libraries utilizing the ability of ?-fluorobenzenesulfonamides to ...

Samarakoon, Thiwanka Bandara

2010-01-27

289

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

2006-01-01

290

OBJECIÓN DE CONCIENCIA Y SALUD REPRODUCTIVA EN CHILE: DOS CASOS PARADIGMÁTICOS  

Microsoft Academic Search

This paper meditates upon conscientious objection and reproductive health in two paradigmatic cases: emergency contraception and voluntary sterilization. Several questions arise regarding conscientious objection towards reproductive health and its ethical (and political) dilemma. As a democratic society we should be concerned about both of them..

Lidia Casas Becerra; Claudia Dides Castillo

2007-01-01

291

SEGREGACIÓN SOCIO-URBANA Y REPRESENTACIONES SOCIALES DE INSEGURIDAD EN DOS COMUNAS DE SANTIAGO DE CHILE  

Microsoft Academic Search

The present article shows some results and reflections derived from a qualitative re- search on the social perceptions of the urban insecurity in Santiago of Chile. The study takes as a base the particular situation of the city that, in spite of having one of the minor rates of victimization to Latin-American level, he presents one of the major indexes

Rosa Maria Guerrero Valdebenito

292

DINAMICA ESPACIAL DA CLOROSE VARIEGADA DOS CITROS EM TRES REGIOES DO ESTADO DE SAO PAULO  

Technology Transfer Automated Retrieval System (TEKTRAN)

CVC is considered the most important disease of the Brazilian citrus industry but many aspects of its epidemiology are still unknown. This work aimed to characterize the spatial pattern of CVC affected trees in three regions (Northwest, Center and South) of Sao Paulo state, Brazil. Three orchards ...

293

TÉCNICA E ÉTICA DA FOTOGRAFIA DO COMPORTAMENTO ANIMAL: DOS PIONEIROS À ERA DIGITAL  

Microsoft Academic Search

TECHNICAL AND ETHICS OF ANIMAL BEHAVIOR PHOTOGRAPHY: FROM PIONEER TO THE DIGITAL AGE. Photography is of extraordinary value to the study of animal behavior, as it enables capturing images of the animals in their natural habitat conditions with their behaviors. since the earliest ethological studies, the pioneers of behavioral science made use of photographic tools with expertise, and their finds

José Sabino

2009-01-01

294

Human skeletal remains of the ancient Maya in the caves of Dos Pilas, Guatemala  

E-print Network

of several individuals (Rue et al. 1989:398). An analysis of the skeletal material estimated 68 individuals: 22 adults and 46 juveniles. More than half of these subadults (24) were less than one year of age (Rue et al. 1989:398). 20 The Copan... as an ossuary was not limited to the third chamber (Brady 1995:36). Furthermore, Brady (1995) interprets the uncremated remains of several children six years and younger as possible offerings for the cremated adults deposited in this third chamber...

Minjares, Amador, Jr.

2004-09-30

295

COMPORTAMENTO DA IMPEDÂNCIA ELÉTRICA DOS TECIDOS BIOLÓGICOS DURANTE ESTIMULAÇÃO ELÉTRICA TRANSCUTÂNEA  

Microsoft Academic Search

Electrical impedance behavior of biological tissues during transcutaneous electrical stimulation Objective: To analyze the electrical impedance of biological tissues during electrical stimulation in relation to different segments, surfaces and current frequencies, with increasing distance between electrodes. Method: 20 female volunteers of mean age 23 ± 2.25 years and mean body mass index 20.65 ± 1.44 kg\\/m2 were positioned in decubitus

MONTEBELO MIL E GUIRRO

296

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

2006-01-01

297

99129-5/2002-DR/SC O $alto dos orgnicos  

E-print Network

: Moacir Loth - SC 00397 JP Coord. de Divulgação e Marketing/ Redação: Artemio R. de Souza (Jornalista´El Rei S. S. Martins Romilda de Assis (Apoio) Impressão: Jojafe Comunicação e Marketing Ltda " Frase

Floeter, Sergio Ricardo

298

The "Dos and Don'ts" of Writing a Journal Article  

ERIC Educational Resources Information Center

Purpose: During work as reviewers and editors of journals authors are often faced the same types of problems in many articles. The purpose of this piece is to give some guidelines on typical problems that lead to rejection, and how to avoid these. Design/methodology/approach: The paper discusses journal article design and offers some methodology…

Kekale, Tauno; de Weerd-Nederhof, Petra; Cervai, Sara; Borelli, Massimo

2009-01-01

299

TRANSTORNO DO DÉFICIT DE ATENÇÃO\\/HIPERATIVIDADE: INFLUÊNCIA DOS PADRÕES MOTORES E DE EQUILÍBRIO ESTÁTICO  

Microsoft Academic Search

RESUMO: O transtorno do Déficit de Atenção\\/Hiperatividade (TDAH) representa umas das principais causas de procura em centros de saúde mental e neurologia de crianças e adolescentes. Pode-se destacar como sendo as principais características de crianças com TDHA a desatenção, a hiperatividade e impulsividade. O presente artigo tem como objetivo demonstrar que a criança com TDAH apresenta um padrão motor e

Adriana Garcia

300

PETROBRAS R&D CENTER (CENPES) Luciano Pereira dos Reis CENPES / PDP /GR  

E-print Network

and Ultra-deep Waters Fuel Innovation Refining Climate Changes Transportation Enhanced Oil Recovery Pre TECHNOLOGICAL PROGRAMS New Exploratory Frontiers Basin Modeling Heavy Oil Optimization & Reliability Deep of Computational Mechanics in the Oil and Gas Industry Visualization Projects: - Outdoors Augmented Reality (COPPE

Lewiner, Thomas (Thomas Lewiner)

301

Resisting SYN Flood DoS Attacks with a SYN Cache  

Microsoft Academic Search

Machines that provide TCP services are often susceptibleto various types of Denial of Service attacks fromexternal hosts on the network. One particular type ofattack is known as a SYN flood, where external hostsattempt to overwhelm the server machine by sending aconstant stream of TCP connection requests, forcing theserver to allocate resources for each new connection untilall resources are exhausted. This

Jonathan Lemon

2002-01-01

302

Preventing DoS attacks in peer-to-peer media streaming systems  

NASA Astrophysics Data System (ADS)

This paper presents a framework for preventing both selfishness and denial-of-service attacks in peer-to-peer media streaming systems. Our framework, called Oversight, achieves prevention of these undesirable activities by running a separate peer-to-peer download rate enforcement protocol along with the underlying peer-to-peer media streaming protocol. This separate Oversight protocol enforces download rate limitations on each participating peer. These limitations prevent selfish or malicious nodes from downloading an overwhelming amount of media stream data that could potentially exhaust the entire system. Since Oversight is based on a peer-to-peer architecture, it can accomplish this enforcement functionality in a scalable, efficient, and decentralized way that fits better with peer-to-peer media streaming systems compared to other solutions based on central server architectures. As peer-to-peer media streaming systems continue to grow in popularity, the threat of selfish and malicious peers participating in such large peer-to-peer networks will continue to grow as well. For example, since peer-to-peer media streaming systems allow users to send small request messages that result in the streaming of large media objects, these systems provide an opportunity for malicious users to exhaust resources in the system with little effort expended on their part. However, Oversight addresses these threats associated with selfish or malicious peers who cause such disruptions with excessive download requests. We evaluated our Oversight solution through simulations and our results show that applying Oversight to peer-to-peer media streaming systems can prevent both selfishness and denial-of-service attacks by effectively limiting the download rates of all nodes in the system.

Conner, William; Nahrstedt, Klara; Gupta, Indranil

2006-01-01

303

ATIVIDADE ELETROMIOGRÁFICA DOS MÚSCULOS MASSETER E TEMPORAL ANTERIOR DE CRIANÇAS COM MORDIDA CRUZADA POSTERIOR UNILATERAL (MCPu)  

Microsoft Academic Search

EMG activity of Masseter and Anterior Temporalis muscles in children with unilateral posterior crossbite Background: Unilateral posterior crossbite (UPCB) may be related to the development of neuromuscular alterations of the stomatognathic system. However, no pattern has yet been determined in the literature for the electrical activity of the mastica tory muscles in children with UPCB. Objective: To compare the electromyographic

T. C. Chaves; Débora Bevilaqua Grossi

304

Perfil perinatal dos recém-nascidos de um hospital universitário da região Sul do Brasil  

Microsoft Academic Search

Introduction: We have analyzed the data concerning the delivery of 766 newborns at the maternity ward of a school hospital in order to assess the perinatal conditions surrounding all births, with an emphasis on gestational age, birth weight, mode of delivery, birth conditions, and childbirth and newborn care. The study also aimed at identifying such pregnancy-related maternal variables as more

José Aparecido Granzotto

305

Es necesario analizarlos desde dos aspectos distintos: la calidad de los resultados obtenidos  

E-print Network

obtenidos: Los metodos que incorporan el comportamiento selectivo producen mayores ingresos (en promedio produce mejoras de hasta el 10% en muchas de los casos considerados. el tiempo de resolución requerido administrar la capacidad de un conjunto de recursos en un hori- zonte finito de tiempo, con el objetivo de

Figueira, Santiago

306

Salivary cortisol in ambulatory assessment--some dos, some don'ts, and some open questions.  

PubMed

The impact of stress on health and disease is an important research topic in psychosomatic medicine. Because research on hypothalamic-pituitary-adrenal (HPA) axis regulation under controlled laboratory studies lacks ecological validity, it needs to be complemented by a research program that includes momentary ambulatory assessment. The measurement of salivary cortisol offers the possibility to trace the free steroid hormone concentrations in ambulant settings. Therefore, in this article, we first discuss the role of salivary cortisol in ambulatory monitoring. We start with a brief description of HPA axis regulation, and we then consider cortisol assessments in other organic materials, followed by a presentation of common salivary markers of HPA axis regulation suitable for ambulatory assessment. We further provide an overview on assessment designs and sources of variability within and between subjects (intervening variables), acknowledge the issue of (non)compliance, and address statistical aspects. We further give an overview of associations with psychosocial and health-related variables relevant for ambulatory assessment. Finally, we deal with preanalytical aspects of laboratory salivary cortisol analysis. The relative simplicity of salivary cortisol assessment protocols may lead to an overoptimistic view of the robustness of this method. We thus discuss several important issues related to the collection and storage of saliva samples and present empirical data on the stability of salivary cortisol measurements over time. PMID:22582339

Kudielka, Brigitte M; Gierens, Andrea; Hellhammer, Dirk H; Wüst, Stefan; Schlotz, Wolff

2012-05-01

307

Conditions of Collaboration: A Dean's List of Dos and Don'ts.  

ERIC Educational Resources Information Center

Presents relational and structural conditions necessary to successful collaboration between college faculty and administrators. Relational conditions include "refuse to play zero-sum games" and "the most important power in a college is the power to persuade." Structural conditions include "clarify the roles of players" and "prefer a matrix…

Glotzbach, Philip A.

2001-01-01

308

Comparative bioactivity studies on two Mimosa species (Estudios comparativos de dos especies de Mimosa)  

Microsoft Academic Search

Comparative antioxidant, antibacterial activities and general toxicity studies on the n-hexane, dichloromethane (DCM) and methanol (MeOH) extracts of Mimosa pudica and Mimosa rubicaulis, two Bangladeshi medicinal plants, were carried out, using the 2,2-diphenyl- 1-picryl-hydrazyl (DPPH) assay, the resazurin microtitre plate based assay, and the brine shrimp lethality assay, respectively. The DCM and MeOH extracts of both M. pudica and M.

Samuel GENEST; Conor KERR; Ankit SHAH; M. Mukhlesur RAHMAN; Gadria M. M. SAIF-E-NASER; Poonam NIGAM; Lutfun NAHAR; Satyajit D. SARKER

2008-01-01

309

Portos Brasileiros 2009: Ranking, Área de Influência, Porte e Valor Agregado Médio dos Produtos Movimentados  

Microsoft Academic Search

Tendo como motivação o forte crescimento do comércio internacional brasileiro, a retomada de investimentos públicos e privados na infraestrutura econômica e os resultados positivos apresentados no Texto para Discussão, n. 1.164, intitulado Portos brasileiros: área de influência, ranking, porte e os principais produtos movimentados (Campos Neto, 2006), considerou-se relevante a atualização desse trabalho em termos temporal e metodológico. A movimentação

Carlos Alvares da Silva Campos Neto; Bolívar Pêgo Filho; Alfredo Eric Romminger; Iansã Melo Ferreira

2009-01-01

310

Nmero Ttulo Autor(a) 2004 TEORIA DOS JOGOS, EXTERNALIDADE E BENS PBLICOS.  

E-print Network

INTERNACIONAL E SUBDESENVOLVIMENTO: CONSIDERAÇÕES TEÓRICAS. EVERALDO I. LEVARTOSKI DE ARAÚJO #12;ECONOMIA Número COMERCIO DAS AMÉRICAS EDUARDO MORAIS 2004 UMA ABORDAGEM SOBRE A DINÂMICA URBANA COM ÊNFASE NO DESEMPENHO DA

Floeter, Sergio Ricardo

311

Avaliação da qualidade microbiológica e dos parâmetros enzimáticos da pasteurização de leite tipo \\  

Microsoft Academic Search

The aim of this study was to evaluate the microbiological quality and pasteurization enzymatic parameters in 80 samples of pasteurized milk produced in the north of Paraná state - Brazil from January , 2004 to December, 2005. The obtained results were compared with legislation established in the Regulation of Industry and Sanitary Federal Inspection of Food of Animal Origin. The

Ronaldo Tamanini; Livia Cavaletti; Alexandre Amorim Monteiro

312

A UTILIZAÇÃO DOS SISTEMAS DE INFORMAÇÃO GEOGRÁFICA COMO AUXÍLIO PARA UMA FERTILIZAÇÃO MAIS RACIONAL  

Microsoft Academic Search

A utilização de matérias fertilizantes de forma pouco correcta, quer quantitativa quer qualitativamente, apresenta-se hoje em dia como uma das principais ameaças em termos ambientais aos ecossistemas agrícolas. De facto a aplicação de nutrientes sem ter em conta as existências no solo ou o potencial produtivo das culturas a que se destinam, conduz a aplicações por defeito ou por excesso

S. Dias; M. P. Rasquilha

313

A ROTINA NAS PEDAGOGIAS DA EDUCAÇÃO INFANTIL: dos binarismos à complexidade  

Microsoft Academic Search

This paper presents a discussion about routines in Early Childhood Education pedagogies. This article was elaborated through bibliographic revision of Early Childhood Education pedagogies and empirical work in nurseries and preschools. The main argument of the article is to replace a discussion of routine that emphasizes an antinomic conception - positivity or negativity - for an understanding of routine within

Maria Carmen Silveira Barbosa

314

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

PubMed

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

2012-12-01

315

A model generating shell for mapping SIMAN to MOR/DOS  

E-print Network

A MODEL GENERATING SHELL FOR MAPPING SIMAN TO MOR/DS A Thesis by RAMESH VENKATA PERUMAL Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE... August 1991 Major Subject: Industrial Engineering A MODEL GENERATING SHELL FOR MAPPING SIMAN TO MOR/DS A Thesis by RAlVKSH VENKATA PERUMAL Approved as to style and content by: Don T. Phillips (Chair of Committee) Don R. Smith (Member) ~('. 8...

Venkata Perumal, Ramesh

1991-01-01

316

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

2008-01-01

317

A social media primer for professionals: digital dos and don'ts.  

PubMed

Social media sites have become powerful and important tools for health education, promotion, and communication activities as they have dramatically grown in popularity. Social media sites also offer many features that can be used for professional development and advancement. When used wisely and prudently, social media sites and platforms offer great potential for professional development by building and cultivating professional networks, as well as sharing information to increase one's recognition and improve one's reputation. They also provide a medium for increasing one's knowledge and awareness of timely news and trends by following important organizations, opinion leaders, and influential professionals. When used unwisely and imprudently, there is the potential to delay, damage, or even destroy one's professional and personal life. In this commentary, we offer recommendations for using Facebook, LinkedIn, and Twitter for professional development and caution against online behaviors that may have negative professional consequences. In summary, we believe that the strengths and benefits of social media for professional advancement and development far outweigh the risks and encourage health promotion professionals to properly engage these powerful tools. PMID:24396119

Bernhardt, Jay M; Alber, Julia; Gold, Robert S

2014-03-01

318

CenterTrack: An IP Overlay Network for Tracking DoS Floods  

Microsoft Academic Search

Finding the source of forged Internet Protocol (IP) datagrams in a large, high-speed network is di- cult due to the design of the IP protocol and the lack of sucient capability in most high-speed, high- capacity router implementations. Typically, not enough of the routers in such a network are capa- ble of performing the packet forwarding diagnostics required for this.

Robert Stone

2000-01-01

319

O ACARO VETOR DA LEPROSE DOS CITROS (BREVIPALPUS PHOENICIS)E A INTERACAO COM ENDOSSIMBIONTES  

Technology Transfer Automated Retrieval System (TEKTRAN)

Citrus leprosis, caused by citrus leprosis virus (CiLV) and transmitted by Brevipalpus phoenicis (Geijskes) (Acari: Tenuipalpidae), is currently the most important viral disease affecting the culture in Brazil, causing significant yield and economical losses of millions of dollars annually for the c...

320

CONFIANZA Y DESCONFIANZA: DOS FACTORES NECESARIOS PARA EL DESARROLLO DE LA CONFIANZA SOCIAL  

Microsoft Academic Search

Recent investigations argue that distrust is the absence of trust and it would be assumed that both attitudes are independent; that would allow to distinguish between the naïve attitude and the wise attitude in the trust. It has been built a scale to measure the disposition to trust and the relationship has been examined among naïve and wise attitude when

RODRIGO YÁÑEZ GALLARDO; LUIS AHUMADA FIGUEROA

321

INFLUÊNCIA DOS PROPRIETÁRIOS E\\/OU GESTORES NAS DECISÕES DE FINANCIAMENTO DAS PM E  

Microsoft Academic Search

Recent entrepreneurship research has moved away from perfect capital market assumptions about firm's financing decisions toward recognition of the role of individuals and their interactions in investment decisions. The Small and Medium-Sized Enterpr ises (SMEs) owners' preferences for capital sources may provide a useful basis for understanding the financing practices of small firms. This paper aims to understand the influence

Zélia Serrasqueiro

322

The Mystery of Dos Bocas Reservoir, Puerto Rico: Explaining Extreme Spatial Heterogeneity in Largemouth Bass Distribution  

E-print Network

in Largemouth Bass Distribution J. WESLEY NEAL 1,3 *, NATHAN M. BACHELER 1 , RICHARD L. NOBLE 1 , DAMIAN SHEA 2 almost no largemouth bass (Micropterus salmoides) in Basin 1 (0.5 fish/h), moderate catch rates distributions. When radio-tagged naive largemouth bass (n = 6) from another reservoir were released in Basin 1

Cope, W. Gregory

323

O Uso do Orçamento no Sistema de Gestão dos Supermercados e Hipermercados do Distrito Federal.1  

Microsoft Academic Search

Nowadays a lot of organizations have a structured management system in which decisions are taken in a step process of planning, executing and controlling. The purpose of this papers is to identify if the supermarkets and hypermarkets located in the Brazil Distrito Federal region use a formal budgeting process in their decision management system. Budget is a tool that can

Luciana Moura Gerônimo; Paulo Roberto; Barbosa Lustosa

324

PRELIMINARY EXPERIMENTAL INVESTIGATION ON THE FRP\\/MASONRY INTERFACE DEBONDING  

Microsoft Academic Search

Sommario L'utilizzo di materiali compositi (FRP) per il rinforzo esterno di strutture storiche è divenuto pratica diffusa in Italia. La principale causa di inefficacia del rinforzo esterno con materiali compositi è il debonding del composito che consiste in una progressiva separazione del composito dalla muratura fino al completo distacco. Il progressivo debonding viene studiato come la propagazione in Modo-II di

C. Carloni; K. V. Subramaniam

325

Complete genome sequence of switchgrass mosaic virus, a member of a proposed new species in the genus Marafivirus  

Technology Transfer Automated Retrieval System (TEKTRAN)

The complete genome sequence of a virus recently detected in switchgrass (Panicum virgatum) was determined and was found to be closely related to Maize rayado fino virus (MRFV), genus Marafivirus, family Tymoviridae. The genomic RNA is 6408 nucleotides long, excluding the poly (A) tail, and encodes...

326

INVESTIAMO NEL VOSTRO FUTURO Comunicato stampa  

E-print Network

intelligenti" promosso da Università e Fondazione Kessler Trento, 25 gennaio 2010 ­ C'è tempo fino al prossimo'Università di Trento e dalla Fondazione Bruno Kessler e finanziato dal Fondo Sociale Europeo (Programma Scienze matematiche, fisiche e naturali e i laboratori della Fondazione Bruno Kessler. Il Master prevede

327

Reti di Calcolatori Informatica e Tecnologie per la Produzione del Software  

E-print Network

rete di collegamenti e commutatori di pacchetto rame, fibra ottica, onde elettromagnetiche, satellite limitato (o inesistente) di server dedicati es.: Skype, Bit Torrent #12;NDM @ Reti di Calcolatori, 2011 residenziale: modem via cavo HFC: hybrid fiber coax asimmetrico: fino a 30 Mbps in downstream, 2 Mbps

Di Mauro, Nicola

328

Decreto n. 8773 IL RETTORE dipartimento risorse umane e organizzazione  

E-print Network

.07.2008, con cui il prof. Matteo Cirulli è stato nominato il Direttore del Dipartimento di Biologia e Patologia ancora afferenti al Dipartimento di Biologia e Patologia Vegetale che ha avviato le procedure di "Biologia e Patologia Vegetale " fino alla disattivazione dello stesso. Bari, lì 29.11.2010 IL RETTORE #12;

Malerba, Donato

329

EWEC2006 Scientific Track Offshore Meteorology for Multi-Mega-Watt Turbines  

E-print Network

that were measured at the two met masts Horns Rev (62m high) and FINO1 (103m) in the North Sea. We found to 30m height above the sea surface. Key words: Offshore Wind Resource Assessment; Marine Meteorology-wave interaction leads to a variable, but small surface roughness. 2) The large heat capacity of the water strongly

Heinemann, Detlev

330

Misure di outcome: il ruolo della qualità di vita GRUPPO DI STUDIO QUALITÀ DELLA VITA  

Microsoft Academic Search

Riassunto La valutazione esterna dei risultati dell'atto medico era fino a poco fa ritenuta incompatibile col ruolo professionale, nel frattempo, anche in sanità, il cliente esige soluzioni, insiste sui risultati e considera il proprio punto di vista quello essenziale. Ciò ha spinto economisti, psicologi ed infine epidemiologi a sviluppare costrutti teo- rici e misure esplicite per le utilità non quantificabili

R. Schoenhuber

2006-01-01

331

Ris DTU Dec.3 2009WindScanner.eu 1 Ris DTU, Technical University of Denmark  

E-print Network

IWES (onshore sites, Alpha Ventus ­ FINO 1- 3 offshore) · Norway: SINTEF (offshore technology, floating degree steerable scan heads. QQ2 QQ3 QQ1 #12;Risø DTU Dec.3 2009WindScanner.eu 6 Risø DTU, Technical of wind power technology · EU Governments wish to maintain the lead Internationally on the wind power

332

Il supercomputer "Piz Daint", che prende il nome da un'imponente montagna della Val Monastero  

E-print Network

banda larga e una bassa latenza, è ora possibile per simulazioni reali sostenere una potenza su scala calcolo ad alta potenza si può solo pensare a un cambiamento radicale dell'architettura dei computer predecessore, il Cray XE6 "Monte Rosa", Piz Daint offre una potenza di calcolo fino a 20 volte superio- re con

333

Master's thesis: "Wind speed measurements in an offshore wind farm by remote sensing: Comparison of radar satellite TerraSAR-X and ground-based  

E-print Network

of the Offshore wind farm alpha ventus with 12 wind turbines, substation and met mast Fino1. Southerly winds cause fascinating new opportunities to measure atmospheric quantities like the wind speed from a distant location.g. COSMO by DWD). Special focus will be on the detection of wakes caused by the wind turbines and the wind

Peinke, Joachim

334

Universit degli Studi di Roma "La Sapienza" Dipartimento Medicina Sperimentale  

E-print Network

preliminare pubblicata suo sito web della Sapienza e del Dipartimento in data 15 ottobre 2010 non sono emerse il 110/110; 15 punti per le votazioni comprese tra il 100/110 ed il 109/110"; · Fino a 30 punti per

Guidoni, Leonardo

335

Universit degli Studi di Roma "La Sapienza" Dipartimento Medicina Sperimentale  

E-print Network

preliminare pubblicata suo sito web della Sapienza e del Dipartimento in data 15 ottobre 2010 non sono emerse/110; 15 punti per le votazioni comprese tra il 100/110 ed il 109/110"; · Fino a 30 punti per la comprovata

Guidoni, Leonardo

336

Universit degli Studi di Roma "La Sapienza" CF 80209930587 PI 02133771002  

E-print Network

: 15 punti per le votazioni comprese tra il 106/110 ed il 110 e lode/110; 10 punti per le votazioni comprese tra il 100/110 ed il 105/110; 5 punti per le votazioni fino a 99/110; · Dottorato di ricerca 15 riviste e libri nazionali). I requisiti prescritti devono essere posseduti entro la data di scadenza del

Guidoni, Leonardo

337

1. Lo `straniero avventuroso' sulle tracce delle tavolette Anni '40 CALTABELLOTTA (Agrigento). Pastori di MonteAdranone avrebbero do-  

E-print Network

realizzate in forma anonima a Ginevra o a Londra. primavera 1977 LILLE. M. Frederiksen, studioso neozelandese tavolette al Getty Museum continueranno fino ai primi anni '90. primavera 1979 ROCCA D'ENTELLA (Palermo). G americana. primavera 1982 PISA. Discussione e contatti epistolari fra Nenci e Daux: quest'ultimo, infatti

Abbondandolo, Alberto

338

Lekking behavior of Anastrepha Fraterculus (Diptera: Tephritidae)  

SciTech Connect

Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae) displays a lek mating system. Males form groups in which they simultaneously display signals (acoustical, visual, or chemical) to attract females with the purpose of mating. Females visit the lek and choose among signaling and courting males to mate. Scarce information is available in A. fraterculus about the main factors involved in female choice and the behavior of displaying males. This information could be important within the context of pest control programs with a sterile insect technique (SIT) component, because departures from normal sexual behavior caused by artificial rearing could affect males' performance in the field. In this study we assessed A. fraterculus male behavior within the leks and analyzed the importance of behavioral and morphological traits on their copulatory success. The existence of preferred places for lek formation was evaluated in field cages with trees inside and analyzed by dividing the trees in sectors according to a 3-dimensional system. Males were individually weighed, marked, and observed every 15 min. Morphometric and behavioral characteristics of successful and unsuccessful males were compared. Most successful males grouped in a region of the tree characterized by the highest light intensity in the first 2 h of the morning. Results showed that pheromone calling activity is positively associated with copulatory success. Copulations were more frequent for males calling inside the lek, indicating that pheromone calling activity and presence in the lek are key factors for copulatory success. A positive association between copulatory success and eye length was found; some characteristics of the face were also associated with copula duration and latency. (author) [Spanish] Anastrepha fraterculus (Wiedemann) (Diptera: Tephritidae) presenta un sistema de apareamiento tipo lek. Los machos forman grupos y, en forma conjunta, emiten senales (acusticas, visuales, o quimicas) para atraer a las hembras con el proposito de aparearse. Las hembras visitan el lek y eligen entre los machos para copular. La informacion acerca de los principales factores involucrados en la eleccion de la hembra y de la influencia del comportamiento de los machos en los leks en esta eleccion es escasa para A. fraterculus . Esta informacion es importante en el contexto de programas de control que incluyen la Tecnica del Insecto Esteril. En el presente estudio se evaluo el comportamiento sexual de machos de A. fraterculus dentro de los leks, y la asociacion de su comportamiento y de rasgos morfometricos con el exito copulatorio. El lugar preferido de agrupamiento de los machos fue evaluado en jaulas de campo con arboles en su interior y dividiendo el arbol en sectores de acuerdo a un sistema de tres dimensiones. Los machos fueron individualmente pesados, marcados y observados cada quince minutos. Luego de finalizado el ensayo se midieron los rasgos morfometricos. El mayor exito correspondio a machos agrupados en una region del arbol caracterizada por tener la mayor intensidad de luz en las dos primeras horas de la manana. Los resultados mostraron que la actividad de llamado con feromonas esta asociada con el exito copulatorio. Las copulas fueron mas frecuentes para machos que llamaron dentro del lek, indicando que la actividad de llamado con feromonas y la presencia dentro del lek son factores importantes en la obtencion de la copula. Los analisis morfometricos revelaron una asociacion positiva entre el exito copulatorio y el largo del ojo, y que algunas caracteristicas de la cara estan asociadas ademas con la duracion de la copula y la latencia. (author)

Segura, D.; Petit-Marty, N.; Cladera, J. [Instituto de Genetica, Instituto Nacional de Tecnologia Agropecuaria, Castelar CC 25, 1712 Castelar (Argentina); Sciurano, R.; Calcagno, G.; Gomez Cendra, P.; Vilardi, J. [Departamento de Ecologia, Genetica y Evolucion, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires (Argentina); Vera, T. [Estacion Experimental Agroindustrial Obispo Colombres, Tucuman (Argentina); Allinghi, A. [Comision Nacional de Energia Atomica, Buenos Aires (Argentina)

2007-03-15

339

Contextualization of four exemplary models of contemporary Venezuelan narrative: Contextualizacion de cuatro pautas para la narritiva Venezolana contemporanea  

E-print Network

aproximaci6n a la realidad, comparten las siguientes caracteristicas: el hombre se convierte en el centro de la vision del mundo, la naturaleza ya no interesa corno entidad aut6noma, sino que sirve para explicar al hombre en su medio ambiente ( , de Jose... ofrecen una vision personal y directa de la realidad. Ahora bien, desde el punto de vista literario es antiromhntica y dramatica. Predomina la atenci6n dada a los problemas de fondo pero tambien presta atenci6n a los de forma, alcanzando cierta...

Sanchez Borjas, Gladys Margarita

1992-01-01

340

Ensenanza de la Astronomia a Traves de Metodos no Tradicionales  

NASA Astrophysics Data System (ADS)

REUMEN: Se presentan los aspects pri nc ipales de a ense? anza de la astronor:. a para -; s. En esta cc .unicaci #n, 5 ha especial mfasis em Ia descripci':"n de las caracteristicas y las posibi lidades peda gicas de los no tradicionales de aprendiZaje. E' : In the following the principal aspects of teaching of astrono ..y for children) are oresented. In this paper, special emphasis has been given to desc rib the characteristics and pedagogical possibilities of the non traditional methods of learning. : TEACHING

Tignanelli, H. L.

1990-11-01

341

Influence of residue management and soil tillage on second rotation Eucalyptus growth Influência do manejo dos resíduos e dos sistemas de preparo do solo no crescimento de eucaliptos em segunda rotação  

Microsoft Academic Search

Harvesting residue management can change many soil chemical and physical properties, considering the mechanical operations involved and the impact on the organic matter content of the soil. Soil tillage sys- tems and the use of paper and pulp sludge and wood ash as fertilizers can help maintain productivity and reduce the effect of the harvesting system being used. This work

Renato Antonio Dedecek; Antonio Francisco Jurado Bellote; Osmar Menegol

342

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

343

ATIVIDADE ANTIMICROBIANA IN VITRO DO RIZOMA EM PÓ, DOS PIGMENTOS CURCUMINÓIDES E DOS ÓLEOS ESSENCIAIS DA Curcuma longa L. In vitro antimicrobial activity of the ground rhizome, curcuminoid pigments and essential oil of Curcuma longa L  

Microsoft Academic Search

The objective of this work was to investigate the antimicrobial activity of ground turmeric, commercially available curcumin, purified curcuminoid pigments and turmeric essential oils. The samples were analyzed for the levels of curcuminoid pigments by high performance liquid chromatography. The essential oil was also analyzed for density, refractive index and profile of volatile compounds by gas chromatography-flame ionization detection. The

Lúcia Péret-Almeida; Cristina da Cunha Naghetini; Elzíria de Aguiar Nunan; Roberto Gonçalves Junqueira; Maria Beatriz Abreu Glória

344

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.

1990-10-01

345

accf_smtp: FreeBSD kernel protection measures against SMTP DDoS and DoS attacks  

Microsoft Academic Search

This paper is about a smtp accept filter (1) kernel module to protect mail gateways against overload- and downtime-situations, most notably against DDoS-attacks. The system only affects the smtp protocol and protocols based on top of the SMTP protocol like SMTPS or TLS (STARTTLS). Heavy load situations caused by those DDoS attacks, or many simultaneous connections from different originating IP-addresses

Martin Blapp

346

Prevalence of dyslipidemia and risk factors in Campos dos Goytacazes, in the Brazilian State of Rio de Janeiro  

Microsoft Academic Search

(P<0.001), male sex (P<0.001), low familial income (P<0.001), familial history (P<0.01), overweight\\/obesity (P<0.001), waist measure (P<0.001), high blood pressure (P<0.001), and diabetes mellitus (P<0.001). The following variables had no influence on dyslipidemias: ethnicity, edu- cational level, smoking habits, and sedentary lifestyle. Conclusion - The frequency of lipid changes in the population studied was high, suggesting that measures for the early

Luiz José de Souza; João Tadeu Damian Souto Filho; Thiago Ferreira de Souza; Aldo Franklin Ferreira Reis; Carlos Gicovate Neto; Diogo Assed Bastos; Vitor Azevedo Côrtes; Félix Elias Barros Chalita; Cláudio Luiz Teixeira

2003-01-01

347

Two Robust Techniques for Segmentation of Biomedical Images Dos Técnicas Robustas para la Segmentación de Imágenes Biomédicas  

Microsoft Academic Search

Image segmentation plays an important role in many systems of computer vision. According to criterions of many authors the segmentation finishes when it satisfies the goals of the observer. For that reason, an only method there is not able of solving all the problems that exists in the present time. In this work, we carry out a comparison between two

Roberto Rodríguez; Patricio J. Castillo; Valia Guerra; Ana G. Suárez; Ebroul Izquierdo

2006-01-01

348

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.

Qaissaunee, Michael

349

EL PARADIGMA DE ELECCIÓN CON BARRERA: EVALUACIÓN DEL HALOPERIDOL CON OCHO ALTERNATIVAS DE RESPUESTAS Y DOS REQUISITOS DE TRASLADO  

Microsoft Academic Search

Research has shown that the same doses of a dopamine antagonist that cause de suppression of lever pressing for a preferred meal, facilitate the consumption of another non-preferred meal freely available in the choice situation. This finding suggests that dopamine antagonists change the organism's preferences in favor of alternatives that require less physical effort. These ideas were assessed in a

CARLOS F. A PARICIO; Y FRANCISCO VELASCO

2003-01-01

350

VARIACIÓN EN LA COMPOSICIÓN DE LAS COMUNIDADES DE AVES DE SOTOBOSQUE DE DOS BOSQUES EN EL NORTE DE VENEZUELA  

Microsoft Academic Search

In order to compare the composition and structure of two understory bird communities and their possible relationships, mist-net samples of avifauna were taken weekly in two forest types: a deciduous for- est and a gallery forest, during 11 months in north-central Venezuela. Both samples were somewhat similar (Sorensen Index = 54), showing a high monthly variability of its similarity index

Carlos Verea; Alberto Fernández-Badillo; Alecio Solorzano

351

A Novel Cloud Computing Security Model to Detect and Prevent DoS and DDoS Attack  

Microsoft Academic Search

Cloud computing has been considered as one of the crucial and emerging networking technology, which has been changed the architecture of computing in last few years. Despite the security concerns of protecting data or providing continuous service over cloud, many organisations are considering different types cloud services as potential solution for their business. We are researching on cloud computing security

Masudur Rahman; Wah Man Cheung

2014-01-01

352

Einstein apaixonado: A cincia mal-contada de um mito bem-traado Carlos Alberto dos Santos  

E-print Network

"a nova teoria das ondas de luz de James Clerk Maxwell" e a controvérsia em torno da natureza da luz inapropriados acumulam-se ao longo do livro. Por exemplo, como é possível dizer que Maxwell "derivou quatro

dos Santos, C.A.

353

ESTIMACIÓN DEL ÁREA FOLIAR EN PLANTAS JÓVENES DE NÍSPERO (Manilkara achras (Miller) Fosberg) SOMETIDAS A DOS AMBIENTES DE LUZ1  

Microsoft Academic Search

Leaf area determination on sapodilla (Manilkara achras (Miller) Fosberg) young seedlings at two light environments Leaf area was determined for two groups of 15 young seedlings of sapodilla (Manilkara achras (Miller) Fosberg). The first group was located under a lath-house and the second one under a rain-shelter with transparent roof. The length width and leaf area were measured in each

Norkys Meza

354

Publications of A. Spencer Tomb Cornejo, Xavier, H. H. Iltis , A. S. Tomb 2008. Anisocapparis y Monilicarpa: Dos  

E-print Network

studies of fossil and extant compositae pollen. Scanning Electron Microscopy, 1977. Vol. 2, 653. Tomb, A. Spencer. 1999. Pollen Morphology and Relationships of Setchellanthus caeruleus (Scrophulariaceae) and the Myoporaceae. Sys. Bot. 8: 29-32. Tomb, A. S. 1982. A new method for isolating pollen

Kaufman, Glennis A.

355

Spatial distribution of metals in sediments of the Ribeira Bay, Angra dos Reis, Rio de Janeiro, Brazil.  

PubMed

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

2010-04-01

356

The DOS 1 neutron dosimetry experiment at the HB-4-A key 7 surveillance site on the HFIR pressure vessel  

SciTech Connect

A comprehensive neutron dosimetry experiment was made at one of the prime surveillance sites at the High Flux Isotope Reactor (HFIR) pressure vessel to aid radiation embrittlement studies of the vessel and to benchmark neutron transport calculations. The thermal neutron flux at the key 7, position 5 site was found, from measurements of radioactivation of four cobalt wires and four silver wires, to be 2.4 {times} 10{sup 12} n{center_dot}m{sup {minus}2}{center_dot}s{sup {minus}1}. The thermal flux derived from two helium accumulation monitors was 2.3 {times} 10{sup 12} n{center_dot}m{sup {minus}2}{center_dot}{sup {minus}1}. The thermal flux estimated by neutron transport calculations was 3.7 {times} 10{sup 12} n{center_dot}m{sup {minus}2}s{sup {minus}1}. The fast flux, >1 MeV, determined from two nickel activation wires, was 1.5 {times} 10{sup 12} n{center_dot}m{sup {minus}2}{center_dot}s{sup {minus}1}, in keeping with values obtained earlier from stainless steel surveillance monitors and with a computed value of 1.2 {times} 10{sup 13} n{center_dot}m{sup {minus}2}{center_dot}{sup {minus}1}. The fast fluxes given by two reaction-product-type monitors, neptunium-237 and beryllium, were 2.6 {times} 10{sup 13} n{center_dot}m{sup {minus}2}{center_dot}s {sup {minus}1} and 2.2 {times} 10{sup 13} n{center_dot}m{sup {minus}2}s{sup {minus}1}, respectively. Follow-up experiments indicate that these latter high values of fast flux are reproducible but are false; they are due to the creation of greater levels of reaction products by photonuclear events induced by an exceptionally high ratio of gamma flux to fast neutron flux at the vessel.

Farrell, K.; Kam, F.B.; Baldwin, C.A. [and others

1994-01-01

357

AVALIA��O MULTICRITERIAL DOS IMPACTOS AMBIENTAIS DA SUINOCULTURA NO DISTRITO FEDERAL: UM ESTUDO DE CASO  

Microsoft Academic Search

In this work a multicriterial evaluation system to select the best alternative for swine waste treatment considering the social, economic and environmental conditions of Brazilian Federal District is presented. The environmental impacts were established and quantified through Rapid Impact Assessment Matrix (RIAM) and aggregated through Analytic Hierarchy Process (AHP). The results show that the combination of RIAM and AHP methods

Ivan Ricardo Gartner; Marcio Luiz da Silva Gama

2005-01-01

358

Nome do aluno(a) Curso do aluno Cidade/Estado Douglas Anderson dos Santos Filosofia So Paulo/SP  

E-print Network

Fisioterapia Curitiba/PR Guilherme Wilhelms Tavares Quimica Santiago/Chile Leticia Nagao Antropologia Pelotas/BA Brisly Freitas Mesquita Geografia Porto Alegre/RS Mariana Cruz de Almeida Lima Antropologia Belém/PA Guilherme Moura Fagundes Antropologia Belém/PA Noé Geraldo Rocha de Melo Filho Engenharia Mecânica Viçosa

Lucero, Jorge Carlos

359

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.

360

ESTUDO DOS PARÂMETROS DO MODELO DE VAZAMENTOS DE UM SETOR DA REDE DE DISTRIBUIÇÃO DE ÁGUA DE PIRACICABA-SP  

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

361

Cytogenetic map of common bean (Phaseolus vulgaris L.) Artur Fonsca & Joana Ferreira & Tiago Ribeiro Barros dos Santos &  

E-print Network

clones was proposed to identify the 11 chromosome pairs of the standard cultivar BAT93. Three of Plant Cytogenetics, Department of Botany, Federal University of Pernambuco, Recife, PE 50670-420, Brazil

Gepts, Paul

362

Jean-Jacques Rousseau y Karl Marx: estudio comparativo de dos críticas a la economía de mercado  

Microsoft Academic Search

We present a comparison between the works of two great critics of the market economy: Rousseau and Marx. It shows their similarities and divergences, most important of which is the place they give to economic analysis in their intellectual and political theories. Whereas Marx built his political and scientific criticism on economic analysis, Rousseau believed this analysis could not be

Andrés Álvarez; Jimena Hurtado

2008-01-01

363

MONITOREO DE ZORROS COLORADOS (PSEUDALOPEX CULPAEUS) Y GRISES (PSEUDALOPEX GRISEUS) EN PATAGONIA: DISEÑO Y COMPARACIÓN DE DOS MÉTODOS ALTERNATIVOS  

Microsoft Academic Search

Monitoring Culpeo (Pseudalopex culpaeus) and Gray foxes (Pseudalopex griseus) in Patagonia: Design and comparison between two alternative methods. We developed and compared two alternative monitoring programs for wild foxes in Patagonia. Monitoring programs were based on two methods to estimate relative abundance, one on square plot survey (sign searching) and the other on bait station visits. To detect a 50%

Alejandro Travaini; Javier Pereira; Rolando Martínez-Peck; Sonia C. Zapata

364

Pgina Inicial Economia Tribolet: "Um conselho de ministros dois dias connosco ficava a perceber o pas" Ministrio dos Negcios  

E-print Network

nacional" Shot Ponto final: O que fará a cimeira... A revista norte-americana publicar mais uma... E os formação Por Ana Rita Guerra ShareShare Gosto 32 mil PUB ... 19/10/2012 | 17:20 | MOBILE | RSS TWITTER

Instituto de Sistemas e Robotica

365

El método Delphi: cuando dos cabezas piensan más que una en el desarrollo de guías de práctica clínica  

Microsoft Academic Search

Introducción: Las guías de práctica clínica deben basarse en la mejor evidencia disponible para formular recomendaciones aplicables y específi cas a la práctica clínica. Objetivos: Revisar la técnica Delfos para lograr consenso entre los expertos y presentar recomendaciones basadas en la evidencia a fi n de mejorar el desarrollo de una guía clínica. Método: Este artículo revisa la estructuración necesaria

Marisol Carreño Jaimes

2009-01-01

366

O eixo hipotálamo-pituitária-adrenal, a função dos receptores de glicocorticóides e sua importância na depressão  

Microsoft Academic Search

Abstract Objective: Changes in the hypothalamic-pituitary-adrenocortical (HPA) system are characteristic of depression. Because the effects of glucocorticoids are mediated by intracellularreceptors including, most notably, the glucocorticoid receptor (GR), several studies have examined the number and\\/or function of GRs in depressed patients. Methods: Review scientific evidences have consistently demonstrated that GR function is impaired in major depression, resulting in reduced GR-me-

Mario F Juruena; Anthony J Cleare; Carmine M Pariante

2004-01-01

367

Analisando livros didáticos na perspectiva dos Estudos do Discurso: compartilhando reflexões e sugerindo uma agenda para a pesquisa  

Microsoft Academic Search

Resumo: Neste artigo, apÛs uma breve revisªo de pesquisas que tomam o livro didÆtico como objeto, delineamos os pressupostos teÛrico-metodolÛgicos de abordagens identificadas com os Estudos do Discurso e que tŒm fundamentado nossas investigaÁies sobre o livro didÆtico de ciŒncias. Em seguida, apresentamos nossas investigaÁies, que significam o livro didÆtico de ciŒncias em relaÁªo ‡s suas condiÁies sociais de produÁªo,

Isabel Martins

2006-01-01

368

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

2008-01-01

369

CARACTERÍSTICAS ANATÓMICAS DE LA HOJA Y EL TALLO DEL SEMERUCO (Malpighia emarginata DC) CULTIVADO EN DOS LOCALIDADES DEL ESTADO LARA  

Microsoft Academic Search

Anatomical characteristics of leaves and stem of Malpighia emarginata in two orchards of Lara state, Venezuela The anatomical structure of leaves and stem from M. emarginata are described. Samples were collected from two orchards at Lara state, Venezuela, with different horticultural management and environment. Standard procedures of vegetal microtechniques were followed to make sectioning. A common anatomical arrangement was observed.

Libia E. Laskowski

2000-01-01

370

Análise dos Fragmentos da Cobertura Arbórea na Bacia do Rio da Várzea utilizando imagens CBERS-2 e Fragstats  

Microsoft Academic Search

This paper presents a pixel based forest coverage evaluation of the river Várzea watershed by FRAGSTATS metrics and CBERS-2 images. For the classification were used six parameters of the Class Metrics category and five parameters from the Land Metrics category. The area has 13,271.29 km2 with a forest coverage of 27,03%. The area is highly fragmented and consists of 90,219

Nelson Zang

371

CLASSIFICAES DOS EXAMES, SRIES E CLASSIFICAO FINAL N Nome Exame 1 2 3 4 5 6 Mdia srie Mdia final  

E-print Network

.3 16 46555 JOÃ?O FILIPE NETO VIEGAS NUNES 16 18 16 16 18 17 16 16.8 16 46566 JOÃ?O PAULO TEN JUA GASPAR RODRIGUES 14 18 17 15 14 10.7 13 49455 PEDRO EMANUEL DIOGO AGOSTINHO 18 18 17 18 18 18 18 17.8 18 49465

Instituto de Sistemas e Robotica

372

El seminario consta de dos partes: Una primera parte (terica) sobre la Optimizacin delTDA-H desde una  

E-print Network

manera práctica,tutorizada por un profesional en ejercicio especialista enTDAH.III Seminario sobre realización de ambos, llevará a la inclusión en un grupo de colaboradores con formación específica enTDAH: · AnalizarlarealidaddelossujetosconTDAH,desdesuprimera infancia hasta la entrada en la edad adulta

Escolano, Francisco

373

A luta pela cidadania dos meninos do Movimento Nacional de Meninos e Meninas de Rua: uma ideologia reconstrutora  

Microsoft Academic Search

This research investigated the relationship between the ideology of the National Movement of Street Children (NMSC) and the experiences and actions of a group of children linked with it. documents produced from the NMSC and twenty interviews conducted with children between the ages of 12 and 17 years who belonged to the National Movement of Street Children from Campina Grande,

Maria Joacineide de Macêdo; Suerde Miranda de Oliveira Brito

1998-01-01

374

New Power Electronics Converter Interfacing a Hybrid Dc/Ac Microgrid M. Alibeik, E. C. dos Santos Jr.  

E-print Network

Jr. Department of Electrical and Computer Engineering, School of Engineering and Technology Indiana switch and drive circuitry. However the proposed circuit maintains the same features of the conventional, (ii) independent control in both ac and dc parts, and (iii) different operation conditions using

Zhou, Yaoqi

375

Uma Metodologia para a Avaliação dos Gradientes de Tenacidade à Fratura ao Longo da Camada Cementada do Aço SAE 5115  

Microsoft Academic Search

The purpose of this work is to propose a model for evaluating the fracture toughness along the SAE 5115 steel carburized layer. Due to the small thickness of those layers, it is impossible to machine specimens from those layer in accordance with standards. For simulating the microstructures of the carburized layer in order to get samples for tensile and the

Leonardo Taborda Sandor; Itamar Ferreira

376

ROEDORES EN LA DIETA DE DOS AVES RAPACES NOCTURNAS (BUBO VIRGINIANUS Y TYTO ALBA) EN EL NORESTE DE DURANGO, MÉXICO  

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

377

A DECADÊNCIA DOS INSTINTOS VITAIS NA MORAL DO RESSENTIMENTO (The Decay of Vital Instincts in the Moral of Resentment)  

Microsoft Academic Search

The purpose of the present paper, according to interpretation carried through of Nietzsche on the history of the culture occidental person, one of the main symptoms of its decay would inhabit in the resentment, been that if manifest in the life of the individual incapable to create affirmative values of the existence, way that, in the plain concrete, when suffering

Renato Nunes Bittencourt

378

Lichenochora epinashii sp. nov. y L. sinapispermae sp. nov. ( Phyllachorales, ascomicetes), dos nuevos hongos liquenícolas sobre Caloplaca  

Microsoft Academic Search

Description of two new species of Lichenochora (Phyllachorales, lichenicolous fungi): Lichenochora epinashii Nav.-Ros. et Etayo sp. nov. and L. sinapispermae Etayo et Nav.-Ros. sp. nov. L. epinashii is so far known from Baja California (Mexico), growing on thallus of Caloplaca nashii Nav. Ros., Gaya et Hladun which occurs on caliche (desertic soil encrustment), and L. sinapispermae is described from Navarra

Pere Navarro-Rosinés; Javier Etayo

2001-01-01

379

DETERMINAÇÃO DE ÁREAS COM RISCO DE DEGRADAÇÃO DOS RECURSOS HÍDRICOS NO MUNICÍPIO DE ITATIBA\\/SP\\/BRASIL  

Microsoft Academic Search

This paper presents the results of the determination of the areas with degradation risk of the water resources in County of Itatiba\\/SP. Itatiba is situated at 46° 40' W and 22° 55' S, covering an area of 323 Km 2 , with 34 km of Atibaia river and estimated population 71,644 people (89% urban and 11% rural). Based on information

José Teixeira Filho

380

LOCALIZAÇÃO DAS REDES DE PESCA DE CAMARÃO (SAQUINHO) UTILIZANDO AEROFOTOS GEORREFERENCIADAS: REGIÃO ESTUARINA DA LAGUNA DOS PATOS, RS, BRASIL  

Microsoft Academic Search

Location of fisheries shrimps nets (saquinho) using georreferenced aerophotos: Patos Lagoon estuary, southern Brazil Information obtained from aircrafts with sensor of small format (35mm) has been used with success to get information of the environment. Shrimps fishery is an important economic activity for Rio Grande and surroundings. The shrimp fishery net used is fike nets known as \\

CARLOS HARTMANN; Arquenatol Dei Svaldi

2001-01-01

381

DISTRIBUIÇÃO ESPACIAL E TEMPORAL DOS ANUROS EM UM BREJO DA RESERVA BIOLÓGICA DE DUAS BOCAS, SUDESTE DO BRASIL 1  

Microsoft Academic Search

Spatial and temporal distribution of anurans in a swamp of Reserva Biológica de Duas Bocas, Southeastern Brazil. This study aimed to investigate space and time partitioning related to reproductive activity of anuran species in a swamp of Reserva Biológica de Duas Bocas, State of Espírito Santo, Southeastern Brasil. We evaluate space use distribution through vertical distribution, obtained by the measurement

GUSTAVO M. PRADO; JOSÉ P. POMBAL JR

382

A psicologia feminista e a violência contra as mulheres na intimidade: a (re)construção dos espaços terapêuticos  

Microsoft Academic Search

RESUMO: O presente documento constitui uma reflexão crítica so- bre os pressupostos gerais das metodologias feministas aplicados ao exercício da Psicologia especificamente em contextos terapêuticos. É feita uma breve alusão ao enquadramento histórico que esteve subjacente à emergência da Psicologia feminista, bem como aos prin- cípios que estiveram na base do desenvolvimento de novas e inovado- ras práticas terapêuticas dirigidas,

Sofia Neves; Conceição Nogueira

2003-01-01

383

A Gateway-based Defense System for Distributed DoS Attacks in High-Speed Networks  

Microsoft Academic Search

In this paper, we describe a defense system to contain DDoS ?ooding attacks in high-speed networks. We aim at protecting TCP friendly tra-c, which occupies the main body of the Internet tra-c. DDoS ?ooding attacks tend to establish large numbers of malicious tra-c ?ows to congestnetwork. These?owsaremarkedasTCP?ows,and use spoofed source identiflers to hide their identities. The currentnetworkequipmentsarelackofthecountermeasure capacitytosuchkindofDDoSattackanddonotprovidethe mechanisms to

Dong Xuan; Riccardo Bettati; Wei Zhao

2001-01-01

384

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

385

CapMan: Capability-based Defense against Multi-Path Denial of Service (DoS) Attacks in  

E-print Network

) are increasingly being deployed in both military and civil operations for emergency rescue and disaster reliefS) and resilience, multi-path routing provides better load balancing, improved fault tolerance, and more efficient

Stavrou, Angelos

386

Colombian Creole horse breeds: Same origin but different diversity.  

PubMed

In order to understand the genetic ancestry and mitochondrial DNA (mtDNA) diversity of current Colombian horse breeds we sequenced a 364-bp fragment of the mitocondrial DNA D-loop in 116 animals belonging to five Spanish horse breeds and the Colombian Paso Fino and Colombian Creole cattle horse breeds. Among Colombian horse breeds, haplogroup D had the highest frequency (53%), followed by haplogroups A (19%), C (8%) and F (6%). The higher frequency of haplogroup D in Colombian horse breeds supports the theory of an ancestral Iberian origin for these breeds. These results also indicate that different selective pressures among the Colombian breeds could explain the relatively higher genetic diversity found in the Colombian Creole cattle horse when compared with the Colombian Paso Fino. PMID:23271940

Jimenez, Ligia Mercedes; Mendez, Susy; Dunner, Susana; Cañón, Javier; Cortés, Oscar

2012-12-01

387

Colombian Creole horse breeds: Same origin but different diversity  

PubMed Central

In order to understand the genetic ancestry and mitochondrial DNA (mtDNA) diversity of current Colombian horse breeds we sequenced a 364-bp fragment of the mitocondrial DNA D-loop in 116 animals belonging to five Spanish horse breeds and the Colombian Paso Fino and Colombian Creole cattle horse breeds. Among Colombian horse breeds, haplogroup D had the highest frequency (53%), followed by haplogroups A (19%), C (8%) and F (6%). The higher frequency of haplogroup D in Colombian horse breeds supports the theory of an ancestral Iberian origin for these breeds. These results also indicate that different selective pressures among the Colombian breeds could explain the relatively higher genetic diversity found in the Colombian Creole cattle horse when compared with the Colombian Paso Fino. PMID:23271940

Jimenez, Ligia Mercedes; Mendez, Susy; Dunner, Susana; Cañón, Javier; Cortés, Óscar

2012-01-01

388

Efficacia della fisioterapia per pazienti affetti da ernia discale: uno studio osservazionale  

Microsoft Academic Search

Fino ad alcuni anni fa, la lombosciatalgia dovuta a un’ernia discale radiologicamente comprovata era un’indicazione sicura per la rimozione chirurgica dell’ernia (discectomia), ma oggi non è più così e spesso i pazienti affetti da questo problema vengono indirizzati verso la riabilitazione fisioterapica. Ma la fisioterapia è veramente efficace? Mostriamo qui i risultati di uno studio prospettico osservazionale su un campione

Alessandra Giovagnoli; Johnny Marzialetti

2010-01-01

389

Sulla teoria dell’accensione della scarica elettrica in campo magnetico trasversale  

Microsoft Academic Search

Riassunto  Si espone una teoria sufficientemente completa del potenziale di scarica in campo magnetico trasversale dalla quale risultano\\u000a chiaramente precisate le variazioni che subisce il diagramma rappresentativo della legge diPaschen al crescere dell’intensità del campo magnetico da zero fino a valori comunque elevati e vengono stabiliti i limiti entro\\u000a i quali la scarica può soltanto adescarsi per la presenza del campo

G. Valle

1950-01-01

390

Effects of Surfaces Nanocrystallization induced by Shot Peening on material properties : a Review  

Microsoft Academic Search

RIASSUNTO. Si presenta una breve descrizione del processo di nanocristalizzazione delle superfici per mezzo di deformazioni plastiche severe. In particolare, si concentra l'attenzione sui processi di pallinatura che fino ad oggi si sono dimostrati efficaci per ottenere superfici nano strutturate e se ne descrive lo stato dell'arte. L'influenza del processo utilizzato sul comportamento del materiale in relazione alle differenti proprietà

Sara Bagheri Fard; Mario Guagliano

2009-01-01

391

In vitro germination of cherimoya ( Annona cherimola Mill.) seeds  

Microsoft Academic Search

An in vitro germination procedure for cherimoya (Annona cherimola Mill.) seeds, cv. ‘Fino de Jete’, is described. Intact seeds were sterilized and soaked for 24h and subsequently cultured in the dark at 30°C, on paper bridges in liquid medium supplemented with 8.67?M gibberellic acid. With this procedure, on average more than 80% of the seeds germinated after 6 weeks all

I. M. G Padilla; C. L Encina

2003-01-01

392

Trace-element characteristics of different pyrite types in Mesoarchaean to Palaeoproterozoic placer deposits  

Microsoft Academic Search

A comparative in situ LA-ICP MS trace-element study on pyrite from three different, variably auriferous, Archaean to Palaeoproterozoic\\u000a palaeoplacer deposits in the Ouro Fino Syncline (Quadrilátero Ferrífero; Brazil), the Elliot Lake area north of Lake Huron\\u000a (SE Canada) and several deposits within the Witwatersrand Basin (South Africa) revealed systematic differences between morphologically\\u000a different pyrite types and between the various palaeoplacer

Nikola Koglin; Hartwig E. Frimmel; W. E. Lawrie Minter; Helene Brätz

2010-01-01

393

Ciática: tratamiento con ozono intradiscal y radiofrecuencia del ganglio de la raíz dorsal frente a cada una de estas dos técnicas  

Microsoft Academic Search

ObjectiveWe performed a prospective, comparative study that evaluated the effectiveness of intradiscal ozone administration associated with pulsed radiofrequency of the compromised lumbar root versus the isolated use of each of these two techniques in the management of radicular pain secondary to a herniated disc.

L. Cánovas; M. Castro; J. Martínez-Salgado; S. Vila; J. Centeno; F. Rocha

2009-01-01

394

Atividade antioxidante e captora de radicais livres dos extratos de Achyrocline alata (Kunth.) DC. em comparação com extratos de Achyrocline satureioides (Lam.) DC  

Microsoft Academic Search

RESUMO: Achyrocline alata (Kunth.) DC. e Achyrocline satureioides (Lam.) DC., espécies pertencentes à família Asteraceae, são utilizadas na medicina popular de Campo Grande, Mato Grosso do Sul, como plantas sucedâneas. O presente trabalho teve com objetivo comparar os extratos obtidos dessas espécies através de ensaios químicos simples destinados a testar as atividades antioxidante e captora de radicais livres, utilizando como

Rafaela F. Grassi-Zampieron; Maria C. Vieira; João M. de Siqueira

2009-01-01

395

Análise temporal dos campos de concentração da clorofila-a e temperatura da superfície do mar obtidos por satélites na Plataforma Continental Sudeste Brasileira  

Microsoft Academic Search

The objective of this work was to analyze the temporal variability of the chlorophyll-a concentration (Chl) and the sea surface temperature (SST) in the Brazilian Southeast Continental Shelf (BSCS), between January 1998 and December 2006. Images from Sea-viewing Wide Fidel-of-view Sensor (SeaWiFS) and Advanced Very High Resolution Radiometer (AVHRR) were used for the extraction of the Chl and SST data

Caroline Leão

396

EVALUATION OF PHYTOMASS PRODUCTIVITY AND N, P AND K ACCUMULATION OF SHRUB LEGUMES IN ALLEY CROPPING SYSTEM IN CAMPOS DOS GOYTACAZES (RJ)  

Microsoft Academic Search

RESUMO ñ O objetivo deste trabalho foi avaliar a produtividade de fitomassa da parte aØrea e o acœmulo de N, P e K nas leguminosas arbÛreas em sistemas agroflorestais de alØias, bem como verificar o efeito da adiÁªo de fÛsforo sobre as leguminosas. Foram realizados experimentos de campo com a utilizaÁªo de leguminosas, com e sem adiÁªo de P, por

Luciano Rodrigues Queiroz; Cunha Coelho; Deborah Guerra Barroso; Aparecida Vieira

2007-01-01

397

Infecciones tardías en el tratamiento quirúrgico de la escoliosis idiopática del adolescente. A propósito de dos casos Delayed infections in the surgical treatment of adolescent idiopathic scoliosis  

Microsoft Academic Search

Two patients who had been managed with posterior spi- nal fusion and TSRH instrumentation developed a delayed infection at 29 and 45 months after operation. Patients had pain in the back for some weeks before, they were a good cli- nical conditions with no fever and laboratory investigation proved a sedimentation rate and white blood count slightly elevated. Plain roentgenograms

Servicio de Ortopedia; Vives E. Gene

2001-01-01

398

RUA DOS FUNCIONRIOS, 1540 JUVEV CURITIBA PR 80.035-050 hv@ufpr.br 41 3350-5785 UNIVERSIDADE FEDERAL DO PARAN  

E-print Network

do curso. Serão oferecidas vagas nas áreas; Patologia Animal Medicina de animais selvagens (no Beto ­ UFPR ­ 40 horas DE Mestre ­ Universidade Federal de Santa Maria. Área de atuação ­ Patologia

Paraná, Universidade Federal do

399

Neodymium, strontium and chromium isotopic studies of the LEW86010 and Angra DOS Reis meteorites and the chronology of the angrite parent body  

NASA Astrophysics Data System (ADS)

Neodymium, strontium, and chromium isotopic studies of the LEW86010 angrite established its absolute age and the formation interval between its crystallization and condensation of Allende CAIs from the solar nebula. Pyroxene and phosphate were found to contain approximately 8% of its Sm and Nd inventory. A conventional Sm-147-Nd-143 isochron yielded an age of 4.53 +/- 0.04 Ga (2 sigma and EpsilonNd143 = 0.45 +/- 1.1. An Sm-146-Nd-142 isochron gives initial Sm-146/Sm-144 = 0.0076 +/- 0.0009 and Epsilon Nd142 = -2.5 +/- 0.4. The Rb-Sr analyses give initial Sr-87/Sr-86 IotaSr87 = 0.698972 +/- 8 and 0.698970 +/- 18 for LEW and ADOR, respectively, relative to Sr-87/Sr-86 = 0.71025 for NBS987. The difference, Delta IotaSr87, between Iota sr87 for the angrites and literature values for Allende CAIs, corresponds to approximately Ma of growth in a solar nebula with a CI chondrite value of Rb-87/Sr-86 = 0.91, or approximately 5 Ma in a nebula with solar photospheric Rb-87/Sr-86 = 1.51. Excess Cr-53 from extinct Mn-53(t1/2 = 3.7 Ma)in LEW86010 corresponds to initial Mn-53/Mn-55 = 4.4 +/- 1.0 x 10-5 for the inclusions as previously reported by the Paris group (Birck and Allegre, 1988). The Sm-146/Sm-144 value found for LEW86010 corresponds to solar system initial (Sm-146/Sm-144) = 0.0080 +/- 0.0009 for crystallization 8 Ma after Allende, the difference between Pb-Pb ages of angrites and Allende, or 0.0086 +/- 0.0009 for crystallation 18 Ma after Allende, using the Mn-Cr formation interval. The isotopic data are discussed in the context of a model in which an undifferentiated 'chondritic' parent body formed from the solar nebula approximately Ma after Allende CAIs and subsequently underwent differentiation accompanied by loss of volatiles. Parent bodies with Rb/Sr similar to that of CI, CM, or CO chondrites could satisfy the Cr and Sr isotopic systematics. If the angrite parent body had Rb/Sr similar to that of CV meteorites, it would have to form slightly later, approximately 2.6 Ma after the CAIs, to satisfy the Sr and CR isotopic systematics.

Nyquist, L. E.; Bansal, B.; Wiesmann, H.; Shih, C.-Y.

1994-11-01

400

Validação de método para determinação de resíduos dos antibióticos oxitetraciclina, tetraciclina, clortetraciclina e doxiciclina, em leite, por cromatografia líquida de alta eficiência  

Microsoft Academic Search

As tetraciclinas são compostos antibacterianos utilizados no gado leiteiro para tratamento de doenças infecciosas, como a mastite e também como aditivos em ração animal para melhorar a conversão alimentar. O uso das tetraciclinas pode acarretar a presença de resíduos destes fármacos no leite, principalmente se não forem utilizados de acordo com as indicações e se não for respeitado o período

Michela Denobile; Elizabeth de Souza Nascimento

401

Clinical Awareness of Do’s and Don’ts of Cardiopulmonary Resuscitation (CPR) Among University Medical Students-A Questionnaire Study  

PubMed Central

Background: Medical students today are tomorrow’s future doctors. One of the key skills that students should develop during their graduation training is to be prepared for emergency life saving measures like cardiopulmonary resuscitation (CPR) anytime, anywhere. The students play integral role in learning, mastering and inculcating the most pragmatic clinical skill of CPR. Objectives: a) To evaluate the CPR awareness among undergraduate medical students. b) To screen the knowledge regarding accurate, effective CPR procedural techniques and various barriers of CPR failure in clinical practice from student perspective. c) To ascertain interest in CPR training programs and also inculcating CPR as an active part of clinical practice in future. Materials and Methods: The questionnaire comprised of three parts, first one dealing with general questions to know the importance of CPR in clinical practice, second one comprised of the main goal and accuracy of CPR intervention and the last segment consisted of questions targeting the indications, methods and effectiveness of CPR. Statistical Analysis: Descriptive statistics and multiple response analyses were done by using SPSS 17. Results: The students had good knowledge about the importance of CPR in clinical practice and stand average in knowing its indications and effectiveness. Whereas, only 1.2% of them were completely aware about the universal compression ventilation ratio, and 20.4% were aware of the current order of CPR being compression, airway and breathing. Conclusion: Though, CPR awareness is good among the students but skills of CPR have to be mastered by proper certified training programs at regular intervals and knowledge has to be updated with the changing trends in CPR. PMID:25177588

Amberkar, Mohan babu; Alur S, Suhas; Bhat, Pavan Madhukar; Bansal, Siddharth

2014-01-01

402

El comercio electrónico B2C desde el punto de vista de las empresas. Comparación de dos contextos diferentes (España y Japón)  

Microsoft Academic Search

E-commerce is a relatively new phenomena in Spain. Its adoption by consumers and firms has grown nociceably in the recent years. Although it still hasn’t spread as much as forecasts of different institutions stated. Anyway many companies have adapted to the new situation and have defined their on-line selling strategies. The aim of this paper is to understand the new

Sonia San Martín Gutiérrez; Carlos Hernández Carrión; Lluís Valls Campà

2009-01-01

403

How Do You Say "Twos" in Spanish, if "Two" Is "Dos"? Language as Means and Object in a Bilingual Kindergarten Classroom  

ERIC Educational Resources Information Center

In this essay Naomi Mulvihill uses vignettes from her bilingual kindergarten classroom to explore the dynamic processes by which young children make sense of language, focusing on instances in which she asks her students to compare texts presented in English and Spanish. Using Piaget's concept of disequilibrium as a guiding framework,…

Mulvihill, Naomi

2014-01-01

404

EL BEOWULFO DE J.R.R. TOLKIEN Y EL BEOWULFO DE HEANEY: DOS PUNTOS DE INFLEXIÓN EN LA RECEPCIÓN DEL POEMA ÉPICO ANGLOSAJÓN  

Microsoft Academic Search

Beowulf is not only the one extant epic poem in Teutonic literature which is preserved complete but also the oldest. The reading of the poem is mediated by translation since the language in which it is written proves now to be incomprehensible to an English reader. Notwithstanding, Beowulf has been for decades a set text in English syllabuses. The purpose

Silvana N. Fernández

2002-01-01

405

Efeito dos tratamentos silviculturais sobre a deformação residual longitudinal em clones de Eucalyptus Effect of forestry treats on the growth stresses in Eucalyptus  

Microsoft Academic Search

The objective of this paper was to verify the spacing and age influence in the longitudinal residual strain (DRL) in clones of Eucalyptus associated to the growth stresses. The material was collected at Vazante and Paracatu regions, Northwest of Minas Gerais State, Brazil. An extensometer CIRAD-Forêt was used for determining the DRL. Two experiments were evaluated: the first one with

Antonio Américo; Cardoso Júnior; Paulo Fernando Trugilho; Sebastião Carlos da Silva

406

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

2000-01-01

407

Senso comum, ciência e filosofia - elo dos saberes necessários à promoção da saúde Common sense, science and philosophy - the links of knowledge necessary for promoting health care  

Microsoft Academic Search

In its evolution, humanity has accu- mulated data which were systematized as knowl- edge. Philosophy through self examination helps us in its practical and theoretical functions to reach a concept of the universe. Common sense helps sci- ence evolve. People's daily difficulties stir up the need for research, for deepening data interpreta- tion and to propose solutions to overcome the

Ediara Rabello Girão Rios; Raimunda Magalhães da Silva; Rosendo Freitas de Amorim; Nhandeyjara de Carvalho Costa

408

Ocorrência sazonal e reprodução do socó-caranguejeiro Nyctanassa violacea no estuário da Lagoa dos Patos (RS, Brasil), novo limite sul da sua distribuição geográfica  

Microsoft Academic Search

Seasonal occurrence and breeding of the Yellow Crowned Night Heron Nyctanassa violacea in the Patos Lagoon estuary (RS, Brazil): the new southern geographic range of the species. The aim of this note is to report the seasonal occurrence and breeding of Nyctanassa violacea in the Patos Lagoon estuary, southern Brazil, its new southernmost area of occurrence. The Pólvora Island, located

Dimas Gianuca

409

O PAPEL DE INDICADORES SÓCIO-ECONOMICOS E AMBIENTAIS NO MONITORAMENTO DOS EFEITOS DE UM PROJETO DE PASTOREIO-ZERO NA TANZÂNIA  

Microsoft Academic Search

Resumo Este artigo documenta os eventos que levaram ao iminente colapso de uma tentativa de reabilitar um ecossistema degradado na Tanzânia central, concentrando-se nas conseqüências do fracasso em monitorar sistematicamente os indicadores sócio-econômicos e ambientais. Em 1979, tomou-se uma decisão de retirar todo os animais de produção em pastoreio de uma área semi-árida na Tanzânia central devido a seu efeito

R. Brian Ogle

410

Considerações a respeito da ansiedade em jovens atletas a partir dos estágios psicossociais do desenvolvimento Considerations about the anxiety in young athletes from stages of psychosocial development  

Microsoft Academic Search

This review aims to consider the process of structu ring the anxiety within the theory of Psychosocial Development Erik Erikson and discuss the issue of l imitation of the studies of anxiety in sports. Thus , it is understood that the mechanisms of anxiety in the sp orting context can influence the performance of athletes and therefore a methodology for

Robério Silva de Paiva; Thaísa Vilhena Silva

411

A physics-based scheme for potentials of a-Si:H TFT with symmetric dual gate considering deep Gaussian DOS distribution  

NASA Astrophysics Data System (ADS)

Taking deep Gaussian and tail exponential distribution of the density of states into account, a novel scheme for potentials of amorphous silicon thin film transistor using symmetric dual gate has been present. The proposed scheme, valid from below to above threshold regimes, provides a completed solution of the potentials at the surface and mid of the layer without solving any transcendental equation. Validity of the work has been verified by extensive comparison to the rigorous numerical simulations. The calculation efficiency has finally been demonstrated. A significant promotion is obtained.

Qin, Jian; Yao, R. H.

2014-05-01

412

Neodymium, strontium and chromium isotopic studies of the LEW86010 and Angra dos Reis meteorites and the chronology of the angrite parent body  

NASA Technical Reports Server (NTRS)

Neodymium, stontium, and chromium isotopic studies of the LEW86010 angrite established its absolute age and the formation interval between its crystallization and condensation of Allende CAIs from the solar nebula. Pyroxene and phosphate were found to contain approximately 8% of its Sm and Nd inventory. A conventional Sm-147-Nd-143 isochron yielded an age of 4.53 +/- 0.04 Ga (2 sigma and Epsilon(sub Nd sup 143)) = 0.45 +/- 1.1. An Sm-146-Nd-142 isochron gives initial Sm-146/Sm-144 = 0.0076 +/- 0.0009 and Epsilon (sub Nd sup 142) = -2.5 +/- 0.4. The Rb-Sr analyses give initial Sr-87/Sr-86 Iota(sub Sr sup 87) = 0.698972 +/- 8 and 0.698970 +/- 18 for LEW and ADOR, respectively, relative to Sr-87/Sr-86 = 0.71025 for NBS987. The difference, Delta Iota(sub Sr Sup 87), between Iota (sub sr sup 87) for the angrites and literature values for Allende CAIs, corresponds to approximately Ma of growth in a solar nebula with a CI chondrite value of Rb-87/Sr-86 = 0.91, or approximately 5 Ma in a nebula with solar photospheric Rb-87/Sr-86 = 1.51. Excess Cr-53 from extinct Mn-53(t(sub 1/2) = 3.7 Ma)in LEW86010 corresponds to initial Mn-53/Mn-55 = 4.4 +/- 1.0 x 10(exp -5) for the inclusions as previously reported by the Paris group (Birck and Allegre, 1988). The Sm-146/Sm-144 value found for LEW86010 corresponds to solar system initial (Sm-146/Sm-144) = 0.0080 +/- 0.0009 for crystallization 8 Ma after Allende, the difference between Pb-Pb ages of angrites and Allende, or 0.0086 +/- 0.0009 for crystallation 18 Ma after Allende, using the Mn-Cr formation interval. The isotopic data are discussed in the context of a model in which an undifferentiated 'chondritic' parent body formed from the solar nebula approximately Ma after Allende CAIs and subsequently underwent differentiation accompanied by loss of volatiles. Parent bodies with Rb/Sr similar to that of CI, CM, or CO chondrites could satisfy the Cr and Sr isotopic systematics. If the angrite parent body had Rb/Sr similar to that of CV meteorites, it would have to form slightly later, approximately 2.6 Ma after the CAIs, to satisfy the Sr and CR isotopic systematics.

Nyquist, L. E.; Bansal, B.; Wiesmann, H.; Shih, C.-Y.

1994-01-01

413

NA analticamente, es una ecuacin de segundo grado con dos varia-bles. Ahora bien, no toda ecuacin de este tipo representa siempre una circunferencia; solo  

E-print Network

centro (h, y radio r es - ( y- = r2. Si el centro es el origen de coordenadas, ecuación toma la forma. Una circunferencia queda completamente determinada si se conocen su centro y su radio. ECUACION de +(. + ;) 4. - . y el radio r = 4 d\\/o"+ - Si D2 +E2- > O, la circunferencia es real. Si D2+E2-

Bor, Gil

414

Aplicação de técnicas de Processamento Digital de Imagens para a caracterização do padrão dos lineamentos frágeis na região de Santana do Acaraú - CE  

Microsoft Academic Search

This work focused the brittle deformation of a siliciclastic body (sandstone with conglomeration) outcropping near Santana do Acaraú city (Ceará-state, Brasil), and it basement (mainly gneissic rocks). By using Landsat images the lineaments were identified and classified according to their directions. A terrain digital model was built and stressed the information of the faults controlling the geometry of the siliciclastic

Julio Alexandre Almeida de Carvalho; Fernando César; Alves da Silva

415

El seminario consta de dos partes independientes: Una primera parte o Seminario terico con el ttulo Comprendiendo elTDA-H y una segunda  

E-print Network

realizará de manera práctica, tutorizada por un profesional en ejercicio especialista en TDAH con el título.La realización de ambos,llevará a la inclu- sión en un grupo de colaboradores con formación específica enTDAH: · AnalizarlarealidaddelossujetosconTDAH,desdesuprimera infancia hasta la entrada en la edad adulta

Escolano, Francisco

416

A luta dos anarquistas contra o sistema penal e a emergência da ação global de associações que compõem a Cruz Negra Anarquista (CNA)  

Microsoft Academic Search

The prison, this recent creation, is thought by the existence of several anarchists associations- Anarchist Black Cross- which dedicates themselves for the struggle against penal system. The urgency in thinking prisons in a way that to privilege liberty, finds in anarchists brave partners. Those, during the search for uthopical free society, generate freedom experiences that rocks the sorrowed logic of

Acácio Augusto; Michel Foucault

417

Influence of respiratory function parameters on the quality of life of COPD patients* Influência dos parâmetros funcionais respiratórios na qualidade de vida de pacientes com DPOC  

Microsoft Academic Search

Objective: To determine the quality of life of COPD patients by using the Medical Outcomes 36-item Short-Form Survey (SF-36) and the Saint George's Respiratory Questionnaire (SGRQ), correlating the scores with respiratory function parameters. Methods: This was a cross-sectional study involving 42 COPD patients. We used the SGRQ (a specific questionnaire) and the SF-36 (a general questionnaire), together with their component

Eanes Delgado; Barros Pereira; Renata Pinto; Marcelo Alcantara; Marta Medeiros; Rosa Maria Salani Mota

418

Dos Idiomas, Un Mundo Dual Language Project Title VII Third-Year Evaluation Report, 1997-98. Publication Number 97.21.  

ERIC Educational Resources Information Center

An evaluation was conducted of the third year of a 5-year comprehensive bilingual education grant funded by Title VII of the Improving America's Schools Act of 1994. The grant funds a program of developmental bilingual education at two elementary schools in the Austin Independent School District (Texas). More than 25% of the students at each…

Liberty, Paul; Gonzalez, Rosa Maria

419

Low-Frequency Noise in High-K and SiO2 UTBOX SOI nMOSFETS S. D. dos Santos1  

E-print Network

-k materials based on Hafnium result in a dielectric/silicon interface with defects which compromise the device, Kasteelpark Arenberg 10, B-3001 Leuven, Belgium The impact of different gate dielectrics on the low front and back- channels. Despite the improvement of process steps for obtaining good dielectric layers

Paris-Sud XI, Université de

420

Submitted to special issue ChERD. This version revised 22 Nov. 2006 The dos and don'ts of distillation column control  

E-print Network

'ts of distillation column control Sigurd Skogestad* Department of Chemical Engineering Norwegian University of Science and Technology N-7491 Trondheim, Norway Abstract The paper discusses distillation column control recommendations to assist the engineer in designing control systems for distillation columns. The standard LV

Skogestad, Sigurd

421

Environmental factors affecting the distribution of land snails in the Atlantic Rain Forest of Ilha Grande, Angra dos Reis, RJ, Brazil.  

PubMed

The distribution and abundance of terrestrial molluscs are affected by environmental factors, but data are lacking for Brazilian land snails. The aim of this study was to understand the relationship between measured environmental factors and the land-snail species composition of two hillsides covered with Atlantic Rain Forest on Ilha Grande. On each hillside, five plots located at 100 m intervals between 100 to 500 m asl were chosen. Each plot was sampled by carrying out timed searches and collecting and sorting litter samples from ten quadrats of 25 × 75 cm. A range of environmental data was measured for each of the quadrats in a plot. A Cluster Analysis was carried out for the richness and abundance data. The environmental variables were analysed using a Pearson Correlation Matrix and Discriminant Analysis. Our results show that the two mountains are similar in species richness, but species composition and abundance are different, probably reflecting observed differences in environmental conditions. The environmental factors associated with compositional variation between the two mountains were: atmospheric temperature, soil temperature, litter depth, and relative air humidity. Distinct luminosity and canopy closure conditions were related to the composition of the land-snail community of one hillside. PMID:22437388

Nunes, G K M; Santos, S B

2012-02-01

422

COMPARAÇÃO DOS RESULTADOS DE UTILIZAÇÃO DE ANÁLISE POR ENVOLTÓRIA DE DADOS E REGRESSÃO LOGÍSTICA EM MODELOS DE PREVISÃO DE INSOLVÊNCIA: UM ESTUDO APLICADO A EMPRESAS BRASILEIRAS  

Microsoft Academic Search

Many studies on models of bankruptcy prediction can be found in the literature of management. These studies are created using mathematical techniques and employed to analyse accounting indicators originated from financial statements of companies. The present study explores the creation of bankruptcy prediction models using Data Envelopment Analysis (DEA) and Logistic Regression, and compares the results obtaining by both techniques.

Luciana Massaro ONUSIC; Silvia KASSAI; Adriana Backx; Noronha VIANA

423

Observações simultâneas no óptico e infravermelho próximo dos BL Lacs PKS 2005-489 e PKS 2155-304 em diversas escalas de tempo  

NASA Astrophysics Data System (ADS)

A existência de variações rápidas de brilho em alguns blazares é um fenômeno bem comprovado, mas até agora não sabemos ao certo quais são os mecanismos físicos envolvidos. A maior dificuldade é a ausência de observações multibanda simultâneas que poderiam fornecer vínculos aos modelos. Buscando colaborar com a discussão estudamos o comportamento de dois BL Lacs, PKS 2005-489 e PKS 2155-304, em relação à variabilidade em diversas escalas de tempo, de poucos minutos até vários meses, com observações simultâneas em seis bandas espectrais (óptico e infravermelho próximo). Para tanto dois telescópios do LNA foram utilizados em conjunto nas campanhas observacionais realizadas em 2001 e 2002, cujos resultados são apresentados aqui. As duas fontes apresentaram características bastante diferentes, inclusive em relação à existência de variabilidade nos índices espectrais. Particularmente, registramos a primeira detecção de variações em escalas de tempo da ordem de poucos minutos em PKS 2005-489, com evidências da presença de um atraso entre as curvas de luz nas bandas V e R e a variação em R ocorrendo antes (o contrário do esperado no modelo de shock-in-jet). Em PKS 2155-304 detectamos pela primeira vez variabilidade em escalas de tempo de poucos minutos no infravermelho em um AGN. As observações indicam que as variações de brilho em blazares são o resultado da ação de mais de um fenômeno, especialmente em escalas de tempo muito curtas. Alguns cenários físicos são sugeridos para explicar os resultados observacionais.

Dominici, T. P.; Abraham, Z.; Galo, A. L.

2003-08-01

424

Fsica da UFRGS conquista Prmio L'Oral-Unesco O Brasil um dos vencedores do 15o Prmio L'Oral-Unesco  

E-print Network

, do Instituto Nacional de Padrões e Tecnologia e da Universidade de Colorado em Boulder, nos Estados a medicina ou para novas fontes de energia". Marcia Barbosa, por sua vez, entrou na seleta lista por

Barbosa, Marcia C. B.

425

A Non Parametric Model for the Forecasting of the Venezuelan Oil Prices  

E-print Network

A neural net model for forecasting the prices of Venezuelan crude oil is proposed. The inputs of the neural net are selected by reference to a dynamic system model of oil prices by Mashayekhi (1995, 2001) and its performance is evaluated using two criteria: the Excess Profitability test by Anatoliev and Gerko (2005) and the characteristics of the equity curve generated by a trading strategy based on the neural net predictions. ----- Se introduce aqui un modelo no parametrico para pronosticar los precios del petroleo Venezolano cuyos insumos son seleccionados en base a un sistema dinamico que explica los precios en terminos de dichos insumos. Se describe el proceso de recoleccion y pre-procesamiento de datos y la corrida de la red y se evaluan sus pronosticos a traves de un test estadistico de predictibilidad y de las caracteristicas del Equity Curve inducido por la estrategia de compraventa bursatil generada por dichos pronosticos.

Costanzo, Sabatino; Dehne, Wafaa; Prato, Hender

2007-01-01

426

Analisis del contenido curricular de los Documentos Normativos del Programa de Ciencias en el area de biologia para la escuela superior del sistema de educacion publica de Puerto Rico: 1993-2012  

NASA Astrophysics Data System (ADS)

Esta investigacion de naturaleza cualitativa se ocupo de realizar un analisis de contenido documental de los Documentos Normativos del Programa de Ciencias en el area de biologia de la escuela superior del sistema de educacion publica de Puerto Rico del periodo 1993-2012. Los documentos analizados fueron: Guia Curricular, 1995; Marco Curricular, 2003; Estandares de Excelencia, 1996, 2000 y Estandares de Contenido y Expectativas de Grado, 2007. Se indago si hubo cambios en significados en los Componentes Estructurales: Naturaleza de la ciencia, Paradigmas para la ensenanza de la ciencia, Funcion del curriculo formal, Mision de la ensenanza de la ciencia; Contenidos, destrezas y competencias, Estrategias de ensenanza y Evaluacion/Assessment del aprendizaje. El analisis sugiere que no hubo cambios sustanciales en los significados de los Componentes Estructurales. Los documentos estudiados muestran mayormente caracteristicas similares, aunque los documentos mas recientes eran mas descriptivos, explicativos y especificos.

Davila Montanez, Melissa

427

Estimating Climate Resilience for Conservation across Geophysical Settings  

PubMed Central

Conservationists need methods to conserve biological diversity while allowing species and communities to rearrange in response to a changing climate. We developed and tested such a method for northeastern North America that we based on physical features associated with ecological diversity and site resilience to climate change. We comprehensively mapped 30 distinct geophysical settings based on geology and elevation. Within each geophysical setting, we identified sites that were both connected by natural cover and that had relatively more microclimates indicated by diverse topography and elevation gradients. We did this by scoring every 405 ha hexagon in the region for these two characteristics and selecting those that scored >SD 0.5 above the mean combined score for each setting. We hypothesized that these high-scoring sites had the greatest resilience to climate change, and we compared them with sites selected by The Nature Conservancy for their high-quality rare species populations and natural community occurrences. High-scoring sites captured significantly more of the biodiversity sites than expected by chance (p < 0.0001): 75% of the 414 target species, 49% of the 4592 target species locations, and 53% of the 2170 target community locations. Calcareous bedrock, coarse sand, and fine silt settings scored markedly lower for estimated resilience and had low levels of permanent land protection (average 7%). Because our method identifies—for every geophysical setting—sites that are the most likely to retain species and functions longer under a changing climate, it reveals natural strongholds for future conservation that would also capture substantial existing biodiversity and correct the bias in current secured lands. Identificación de Sitios Duraderos para la Conservación Usando la Diversidad del Paisaje y las Conexiones Locales para Estimar la Capacidad de Recuperación al Cambio Climático Resumen Los conservacionistas necesitan un método mediante el cual poder conservar la diversidad biológica mientras permiten que las especies y las comunidades se reorganicen con respecto al clima cambiante. Desarrollamos y probamos tal método, el cual basamos en características físicas asociadas con la diversidad ecológica y la capacidad de recuperación del sitio con respecto al cambio climático, en el noreste de Norteamérica. Mapeamos comprensivamente 30 escenarios geofísicos distintos basados en la geología y la elevación. Dentro de cada escenario geofísico identificamos sitios que estaban conectados por una cubierta natural y que tenían relativamente más microclimas indicados por la topografía diversa y los gradientes de elevación. Hicimos esto al puntuar cada hexágono de 450 ha en la región con estas dos características y al seleccionar aquellos que tuvieron una puntuación >SD 0.5 por encima del puntaje combinado promedio para cada escenario. Nuestra hipótesis fue que estos sitios con altas puntuaciones tuvieron la mayor capacidad de recuperación. Los comparamos con los sitios seleccionados por The Nature Conservancy por sus poblaciones de alta calidad de especies raras y sus ocurrencias de comunidades naturales. Los sitios con altos puntajes capturaron significativamente más de los sitios de biodiversidad de lo que se esperaba por casualidad (p < 0.0001): 75% de las 414 especies objetivo, 49% de las 4592 localidades de especies objetivo y 53% de las 2710 localidades de comunidades objetivo. Los escenarios de lecho rocoso calcáreo, arena gruesa y limo fino tuvieron puntos marcadamente más bajos para la capacidad de recuperación estimada y tuvieron niveles bajos de protección permanente de suelo (en promedio 7%). Ya que nuestro método identifica – para cada escenario geofísico – sitios que tienen mayor probabilidad de retener especies y funciones más tiempo bajo un clima cambiante, revela baluartes naturales para la con

ANDERSON, MARK G; CLARK, MELISSA; SHELDON, ARLENE OLIVERO

2014-01-01

428

Artigo Original Avaliação dos valores sérico e pleural dos marcadores tumorais CEA, CYFRA21-1 e CA 15-3 em portadores de derrame pleural* Evaluation of serum and pleural levels of the tumor markers CEA, CYFRA21-1 and CA 15-3 in patients with pleural effusion  

Microsoft Academic Search

Objective: To determine the levels of the tumor markers carcinoembryonic antigen (CEA), cytokeratin 19 fragment (CYFRA21-1) and carbohydrate antigen 15-3 (CA 15-3) in the blood and pleural fluid of patients with benign or malignant pleural effusion, evaluating the sensitivity of each marker in these fluids. Methods: We prospectively evaluated 85 patients with pleural effusion. The study of the pleural fluid

Isabella Coimbra Wagner; Murilo José de Barros; Lilian Karine; Neves da Silva; Francisco Montenegro de Melo; Maria Tereza Cartaxo Muniz

2007-01-01

429

B4. RESPUESTA DEL CULTIVO DE GYPSOPHILA (Gypsophila paniculata variedad New Love ) A LA IMPLEMENTACIÓN DE DOS FORMULACONES DE FERTIRRIEGO Y A LA IMPLEMENTACIÓN DE DOS COBERTURAS PLÁSTICAS. GUAYLLABAMBA - PICHINCHA * RESPONSE OF GYPSOPHILA (Gypsophila paniculata variedad New love) TO TWO FERTI-IRRIGATION FORMULATIONS AND TWO PLASTIC COVER S. GUAYLLABAMBA - PICHINCHA  

Microsoft Academic Search

SUMMARY The company Latinflor, located in Guayllabamba, Pichincha, was evaluated in two growing cycles response of gypsophila ( Gypsophila paniculata var. New Love) to two ferti-irrigation formulations (f 1= dynamic fertilization according to the phenologic stage of the plant (vegetative stage and productive stage ) and f 2= static fertilization currently used in the farm) and two plastic covers (c

Mónica Rocha; Arturo Orquera

430

Plasma Technology as a New Preservation Technique  

NASA Astrophysics Data System (ADS)

The preliminary results of using the surface wave discharge at the atmospheric pressure on groups of lentils and sherry Fino wine samples are presented. In this research, the capability of active species and UV radiation from the plasma, has been assessed on preservation of food. Besides, the generation and emission of both excited molecules in a metastable state N2}(B3? {g-> A3}? u{+) and the de-excitation of species NO(A2}? {+) producing UV radiation have been also studied.

Rincón, R.; Calzada, M. D.

431

11 E J E M P LO S D E P R O G R A M A S O C A M L En esta seccin ilustraremos los conceptos presentados hasta ahora, con dos aplicacio-  

E-print Network

# validar RaizCuadrada ;; 8 Characters 8-20: 9 validar RaizCuadrada ;; 10 ^^^^^^^^^^^^ 11 Unbound constructor RaizCuadrada 12 # validar 9 ;; 13 Characters 8-9: 14 validar 9 ;; 15 ^ 16 This expression has type

Guerra Hernández, Alejandro

432

Mycoplasma pneumoniae en exacerbación de asma refractaria a tratamiento convencional en pacientes pediatricos de dos hospitales de Lima y Callao Mycoplasma pneumoniae IN ACUTE ASTHMA NOT SOLVED BY STANDARD TREATMENT IN PEDIATRIC PATIENTS OF TWO HOSPITALS OF LIMA AND CALLAO  

Microsoft Academic Search

Objective: to determine the prevalence of acute Mycoplasma pneumoniae infection in children with asthma exacerbations not solved by standard treatment. Methods: an analityc-descriptive study was developed from June 2000 through June 2003, on children between 2 and 13 years old, with asthma exacerbations not solved by standard treatment, attended at pediatric services at Hospital for Pediatric Emergencies and Alberto Sabogal

JUAN GARCÍA GUERRERO; GIAN MENDIOLA BARRIOS; TANIA SOLÍS MEZARINO

433

Insucessos no tratamento da vertigem posicional paroxística benigna: utilidade dos exercícios complementares de reeducação vestibular Failures in the treatment of benign positional paroxysmal vertigo: usefulness of complementary vestibular rehabilitation exercises  

Microsoft Academic Search

Purpose: Evaluation of the efficacy of therapeutic manoeuvres performed and the analysis of the efficacy of complementary exercises of vestibular rehabilitation (VR) in patients suffering from BPPV, presenting with persistent vertigo or disequilibrium after performing these manoeuvres. Method: 175 patients, both sexes, were included in this analysis. All suffered from benign positional paroxysmal vertigo (BPPV) and were treated with therapeutic

Fernando Moreno; Vaz Garcia

2005-01-01

434

Geoprocessamento aplicado ao mapeamento dos impactos socioambientais decorrentes das formas de uso da terra nas Áreas de Preservação Permanente (APPs) da Represa de Salto Grande no município de Americana (SP)  

Microsoft Academic Search

The Dam of Salto Grande, occupying an area of 10.5 km2, is located in the hydrographical basin of the Atibaia River, important tributary of the Piracicaba River, in the State of São Paulo. It takes care of, in the present time, to the inhabitants of the cities of Americana, Paulínia and Nova Odessa, that also use the source for activities

Joyce Rodrigues da Cruz

435

Perfil da atividade de pesquisa publicada nos anais dos congressos brasileiros de pneumologia e tisiologia nos últimos vinte anos* Profile of research published in the annals of the Brazilian Pulmonology and Phthisiology Conferences held over the last twenty years  

Microsoft Academic Search

Objective: To increase the knowledge base regarding pulmonology research in Brazil. Methods: A retrospective, observational study of the abstracts published in the Annals of the Brazilian Pulmonology and Phthisiology Conferences held from 1986 to 2004, quantifying the institutions of origin by geographic distribution and type, as well as categorizing the abstracts by study design and topic. Results: A total of

ALEXANDRE TODOROVIC FABRO; HYUNG BOK YOO; HELENA ABRAHÃO; THOMAZ QUELUZ

2006-01-01

436

CONCENTRACIÓN E INTERRELACIÓN MINERAL EN SUELO, FORRAJE Y SUERO DE OVINOS DURANTE DOS ÉPOCAS EN EL VALLE DE TOLUCA, MÉXICO MINERAL CONCENTRATION AND INTERRELATIONSHIP IN SOIL, FORAGE AND BLOOD SERUM OF SHEEP DURING TWO SEASONS IN THE TOLUCA VALLEY, MÉXICO  

Microsoft Academic Search

To identify mineral imbalances and their interrelationships, a sampling was made of soil, forage, water and blood of lambs and ewes, in June and October 1991, in six sheep production units (PU) of the valley of Toluca, México. The mineral content in the soil and forage was affected (p?0.05) by the PU, time period and their interaction. The soils were

Ignacio A. Domínguez-Var; Maximino Huerta-Bravo; Esta Toluca

437

Effects of resistance training exercise on cognitive performance in elderly individuals with memory impairment: results of a controlled trial Efeitos dos exercícios resistidos no desempenho cognitivo de idosos com comprometimento da memória: resultados de um estudo controlado  

Microsoft Academic Search

Objective: To detect the effects of a resistance training program on cognitive performance and muscle strength in sedentary elderly individuals with memory impairment. Methods: Thirty-one sedentary elderly persons with no dementia or depression were randomly distributed into two groups: Physical Activity Group and Control Group. The resistance training exercise program lasted nine months and consisted of three series of six

Alexandre Leopold Busse; Wilson Jacob Filho; Regina Miskian Magaldi; Venceslau Antônio Coelho; Antônio César Melo; Rosana Aparecida Betoni; José Maria Santarém

438

Efeitos dos exercícios resistidos no desempenho cognitivo de idosos com comprometimento da memória: resultados de um estudo controlado Effects of resistance training exercise on cognitive performance in elderly individuals with memory impairment: results of a controlled trial  

Microsoft Academic Search

objective: To detect the effects of a resistance training program on cognitive performance and muscle strength in sedentary elderly individuals with memory impairment. Methods: Thirty-one sedentary elderly persons with no dementia or depression were randomly distributed into two groups: Physical Activity Group and Control Group. The resistance training exercise program lasted nine months and consisted of three series of six

Alexandre Leopold Busse; Wilson Jacob Filho; Regina Miskian Magaldi; Venceslau Antônio Coelho; Antônio César Melo; Rosana Aparecida Betoni; José Maria Santarém

439

Utilització d’un mètode de codificació per l’estudi i seguiment epidemiològic de la patologia esportiva. Avaluació de dos períodes olímpics amb l’equip nacional de taekwondo  

Microsoft Academic Search

Introduction and purposeThe epidemiological study of sports injuries is essential to assess their causes and consequences on the athlete. The Orchard Sports Injury Classification System (OSICS) model was chosen to determine its usefulness to manage and evaluate sports injury epidemiology, using as a handy reference, the medical care offered to the Taekwondo national athletes team who resided in the Olympic

Albert Altarriba-Bartés; José Luis Nieto Hornes; Antoni Turmo Garuz; Franchek Drobnic; José Manuel Vela Fernández; Lluís Til-Pérez

2011-01-01

440

Estudo da evolução dinâmica fluvial dos rios do Amazonas com base em imagens de RADAR e satélite nos últimos 30 anos, balanço entre área de erosão e deposição e possíveis conseqüências para a ocupação humana  

Microsoft Academic Search

The Amazon region as resultant of geologic history and the climate, shelters a more extensive fluvial system and of bigger liquid mass of the Land. The analysis of products of remote sensing in the Amazônia is the technique that still persists as the main tool to assist in the execution of diverse scientific works. The agreement of the fluvial dynamics

Amaro Luiz Ferreira

441

Habitat Requirements of Breeding Black-Backed Woodpeckers (Picoides arcticus) in Managed, Unburned Boreal Forest Besoins en termes d'habitat chez le Pic à dos noir (Picoides arcticus) nichant en forêt boréale non brûlée et sous aménagement  

Microsoft Academic Search

We investigated home-range characteristics and habitat selection by Black-backed Woodpeckers (Picoides arcticus) in an unburned, boreal forest landscape managed by mosaic harvesting in Quebec, Canada. Habitat selection by this species was specifically examined to determine home-range establishment and foraging activities. We hypothesized that Black-backed Woodpeckers would respond to harvesting by adjusting their home-range size as a function of the amount

Junior A. Tremblay; Jacques Ibarzabal; Christian Dussault; Jean-Pierre L. Savard

442

Fatores determinantes da atividade dos motoristas de caminhão e repercussões à saúde: um olhar a partir da análise coletiva do trabalho* Determinant factors of truck drivers' work and repercussions on their health from the collective analysis of work perspective  

Microsoft Academic Search

The objective of this study was to characterize truck drivers' activity concerning their work demands and challenges resulting from their work organization. The method applied was Collective Analysis of Work, which describes the activity based on the workers' statements during their meetings with the researchers, focusing on factors that could be determinant for accidents and work-related diseases. A total of

Claudia Roberta de Castro; Lúcia Rotenberg

443

MODELO PROMEDIO DE DOS REGIONES PARA EL FLUJO BIFASICO SOLIDO-LIQUIDO HORIZONTAL CON UN LECHO MOVIL A TWO-REGION AVERAGING MODEL FOR SOLID-LIQUID FLOW WITH A MOVING BED IN HORIZONTAL PIPES  

Microsoft Academic Search

In this paper a methodology to obtain a two-region averaging model is presented. The model was applied to study a two-region two-phase flow system in horizontal pipes. The analysis considers a moving bed of drilling cuttings (? -region) below of a two-phase dispersed flow (? -region). To derive a rigorous mathematical model in which each variable is precisely defined, the

R. Salazar-Mendoza; A. Vázquez-Rodríguez; J. R. Ramos-Alcántara

2004-01-01

444

LAS DIMENSIONES ÉTICAS DE LA ENSEÑANZA EN LA CARRERA “CIENCIA Y TECNOLOGÍA DE LOS ALIMENTOS” ETHICAL DIMENSIONS OF TEACHING IN THE CAREER “FOOD SCIENCE AND TECHNOLOGY” AS DIMENSIÓNS ÉTICAS DA ENSEÑANZA NA CARREIRA “CIENCIA E TECNOLOXÍA DOS ALIMENTOS”  

Microsoft Academic Search

The overall purpose of this research was to analyse the ethical dimensions of the deontological codes of the university career «Food Science and Technology». We studied the relations between the real and the ideal, between that specified in the deontological codes and the classroom reality of those students undertaking courses pertaining to the aforementioned degree in the University of Granada.

P. S. De Vicente Rodríguez; M. J. Latorre Medina

2003-01-01

445

The politicisation of traditional Polish Jewry: Orthodox German rabbis and the founding of Agudas Ho?Ortodoksim and Dos yidishe vort in Gouvernement?General Warsaw, 1916–18  

Microsoft Academic Search

In 1916, in the midst of the First World War, Orthodox German rabbis Dr Emanuel Carlebach and Dr Pinchas Kohn played a crucial role in founding and developing the organisation of an Orthodox party in Poland named Agudas Ho?Ortodoksim. These attempts to politicize traditional Polish Jewry were opposed by a significant part of Polish Jewry. While some circles of traditional

Tobias Grill

2009-01-01

446

A Dynamical Study of the Formation of Peculiar Galaxies  

NASA Astrophysics Data System (ADS)

RESUMEN. Un estudlo de la formaci6n de diferentes tipos de galaxias peculiares (interactuantes) es conducido en base de la dina'mioa de la colisi6n lievando a su formaci6n usando la aproximaci6n impulsiva. Los resultados indican la existencia de una relaci6n caracteristica en base del camblo de la energia interna durante la colisi6n, cual determina el tipo de la galaxia peculiar formado. La relacion es analisada y valores criticos del camblo de Ia energia interna, ilevando a la interacci6n entre galaxias de varias intensidades y la formaci6n consecuente de varios tipos de sistemas peculiares es discutido. ABSTRACT. A study of the formation of different types of peculiar (interacting) galaxies is conducted based on the dynamics of the collision leading to their formation, using the impulsive approximation. Results indicate the existance of a characteristic relationship, based on the internal energy changes during the collision, governing the type of peculiar galaxy formed. The relationship is analysed and critical values of internal energy changes, leading to galaxy interaction of varying intensities and consequent formation of different types of peculiar galaxies is discussed. Key words: GALAXIES-DYNAMICS -- GALAXIES-FORMATION

Chatterjee, T. K.

1990-11-01

447

Sea surface wind measurement over offshore wind farm using TerraSAR-X data  

NASA Astrophysics Data System (ADS)

A TerraSAR-X Stripmap image over the North Sea shows significant spatial variations of sea surface wind field over the offshore wind farm Alpha Ventus. In the present study, we demonstrate the tempting potential of using high resolution SAR to investigate spatial variations of sea surface wind field over the offshore wind farms. A newly developed X-band Geophysical Model Function (GMF) XMOD2 is applied on the TS-X data to retrieve sea surface wind speed. By comparing the TS-X retrieved sea surface wind field to results of the DWD wind field, in situ observations on the FiNO platform, as well as the satellite measurement derived from the polarimetric microwave radiometer WindSat, it is found that the SAR estimated wind field not only agrees well with other measurements, but also presents the fine-scale features of sea surface wind field over the offshore wind farm.

Li, Xiao-Ming; Lehner, Susanne; Brusch, Stephan; Ren, Yong-Zheng

2011-11-01

448

Calcification associated with the nasolacrimal system of a horse: case report and mineralogic composition.  

PubMed

A 12-year-old Paso Fino mare was evaluated for a chronic nasal and ocular discharge. A calcification was identified eroding through the nasal mucosa of the middle meatus. Differential considerations for this mass included dacryolith, nasal calculus, or calcified tooth root abscess. Anatomical location and case history and progression supported a dacryolith. Following removal, the calculus was submitted for mineralogic analysis. The calculus was primarily carbonate hydroxylapatite (Ca10(PO4)3(CO3)3(OH)2) with a minor NaCl halite constituent. Dacryoliths, or nasolacrimal calculi, are an uncommon occurrence in animals, and sparsely reported in humans. The etiopathogenesis of dacryolith formation is unknown. The objective of this article was to report the first case report of an equine nasolacrimal system dacryolith and its mineralogic composition. PMID:16634933

Cassotis, Nicholas J; Schiffman, Peter

2006-01-01

449

Correlation equation for the marine drag coefficient and wave steepness  

NASA Astrophysics Data System (ADS)

This work questions, starting from dimensional considerations, the generality of the belief that the marine drag coefficient levels off with increasing wind speed. Dimensional analysis shows that the drag coefficient scales with the wave steepness as opposed to a wave-age scaling. A correlation equation is employed here that uses wave steepness scaling at low aspect ratios (inverse wave steepnesses) and a constant drag coefficient at high aspect ratios. Invoked in support of the correlation are measurements sourced from the literature and at the FINO1 platform in the North Sea. The correlation equation is then applied to measurements recorded from buoys during the passage of hurricanes Rita, Katrina (2005) and Ike (2008). Results show that the correlation equation anticipates the expected levelling off in deeper water, but a drag coefficient more consistent with a Charnock type relation is also possible in more shallower water. Some suggestions are made for proceeding with a higher-order analysis than that conducted here.

Foreman, Richard J.; Emeis, Stefan

2012-09-01

450

Quantification of mass loading to Strawberry Creek near the Gilt Edge mine, Lawrence County, South Dakota, June 2003  

USGS Publications Warehouse

Although remedial actions have taken place at the Gilt Edge mine in the Black Hills of South Dakota, questions remain about a possible hydrologic connection along shear zones between some of the pit lakes at the mine site and Strawberry Creek. Spatially detailed chemical sampling of stream and inflow sites occurred during low-flow conditions in June 2003 as part of a mass-loading study by the U.S. Geological Survey to investigate the possible connection of shear zones to the stream. Stream discharge was calculated by tracer dilution; discharge increased by 25.3 liters per second along the study reach, with 9.73 liters per second coming from three tributaries and the remaining increase coming from small springs and dispersed, subsurface inflow. Chemical differences among inflow samples were distinguished by cluster analysis and indicated that inflows ranged from those unaffected by interaction with mine wastes to those that could have been affected by drainage from pit lakes. Mass loading to the stream from several inflows resulted in distinct chemical changes in stream water along the study reach. Mass loading of the mine-related metals, including cadmium, copper, nickel, and zinc, principally occurred from the discharge from the Gilt Edge mine, and those metals were substantially attenuated downstream. Secondary loadings of metals occurred in the vicinity of the Oro Fino shaft and from two more inflows about 200 m downstream from there. These are both locations where shear zones intersect the stream and may indicate loading associatedwith these zones. Loading downstream from the Oro Fino shaft had a unique chemical character, high in base-metal concentrations, that could indicate an association with water in the pit lakes. The loading from these downstream sources, however, is small in comparison to that from the initial mine discharge and does not appear to have a substantial impact on Strawberry Creek.

Kimball, Briant A.; Runkel, Robert L.; Walton-Day, Katherine; Williamson, Joyce E.

2006-01-01

451

Desarrollo de un instrumento para medir percepciones sobre el contexto de construccion del conocimiento cientifico de estudiantes universitarios de nuevo ingreso  

NASA Astrophysics Data System (ADS)

En esta investigacion, se desarrollo un instrumento que permite medir percepciones relacionadas al contexto de constriccion del conocimiento cientifico. Se examinaron instrumentos existentes y se encontro que el VOSTS (Views on science, technology, and society), instrumento desarrollado empiricamente en Canada por Aikenhead, Ryan y Fleming, podia traducirse y validarse en el contexto cultural puertorriqueno. El instrumento es extenso, consta de 113 reactivos, cada uno con una premisa basica relacionada a la tematica ciencia, tecnologia y sociedad y un numero de alternativas relacionadas a la premisa que oscila entre siete y trece. Se delimito su utilizacion a los quince reactivos identificados por los autores como relacionados a la construccion social del conocimiento cientifico. Metodologicamente, se procedio a utilizar el modelo de adaptacion intercultural, que permite que el instrumento desarrollado satisfaga las dimensiones de equivalencia semantica, de contenido, tecnica, de criterio y conceptual, atemperado asi al instrumento original. Se cumplio con este proposito mediante la traduccion de la version original en ingles al espanol y viceversa. Se utilizaron comites para examinar la traduccion y la retro-traduccion del instrumento. Se realizo una prueba piloto con estudiantes universitarios de nuevo ingreso, utilizando el instrumento traducido para asegurar su intelegibilidad. La confiabilidad del instrumento se determino mediante la intervencion de un panel de expertos quienes clasificaron las distintas posiciones dentro de cada reactivo en: realista, con merito e ingenua; se transformaron estas opciones en valores numericos lo que permitio establecer una escala Likert para cada una. Se suministro el instrumento a una muestra de estudiantes universitarios de nuevo ingreso con caracteristicas similares a las de la poblacion puertorriquena en cuanto a ejecucion en las pruebas de aptitud verbal y matematica del College Board. Los resultados de sus contestaciones fueron transformados numericamente para poder obtener el coeficiente de correlacion de Spearman-Brown para el instrumento (0.661, p < 0.01). El analisis de las contestaciones de los estudiantes refleja percepciones diversas y, en algunos casos, contradictorias con respecto al contexto de construccion del conocimiento cientifico.

Garcia-Ramirez, Jaime Antonio

452

Eixo temático : Gestão de Bacias Hidrográficas e a Dinâmica Hidrológica. CARACTERIZAÇÃO GEOAMBIENTAL E MORFOMÉTRICA DE UM TRECHO DO MÉDIO CURSO DA BACIA HIDROGRÁFICA DO RIO PACOTI\\/CE  

Microsoft Academic Search

RESUMO As alterações ocorridas a partir da Revolução Industrial intensificaram o uso dos recursos naturais, propiciando novas formas de apropriação dos territórios, acelerando o esgotamento de elementos da natureza e do ambiente, tornando as riquezas naturais cada vez mais escassas, raras e caras. O uso dos recursos hídricos e sua conservação é um dos principais desafios do desenvolvimento sustentável, devido

Marta Celina

453

Lo que Piensan los Estudiantes y Profesores Sobre la Calidad de la Educacion Superior. Estudio Comparativo en 5 Instituciones de Educacion Superior--dos publicas y tres privadas--en Guadalajara, Jalisco, Mexico (What Students and Faculties Think about the Quality of Higher Education. Comparative Study of 5 Higher Education Institutions--Two Public and Three Private--in Guadalajara, Jalisco, Mexico).  

ERIC Educational Resources Information Center

This study, written in Spanish, compared attitudes of students (N=302) and faculty (N=28) at five institutions of higher education (two public and three private) in Guadalajara, Jalisco, Mexico. The study explored first, whether respondents believed there are significant quality differences between private and public universities and, second, what…

Yanez, Maria Lorena Hernandez

454

REVISIÓN SERRADELA AMARILLA (Ornithopus compressus) Y SERRADELA ROSADA (O. sativus): DOS NUEVAS ESPECIES DE LEGUMINOSAS FORRAJERAS ANUALES PARA LA ZONA MEDITERRÁNEA DE CHILE Yellow serradella (Ornithopus compressus) and pink serradella (O. sativus): two new species of annual legumes for the Mediterranean climate zone of Chile  

Microsoft Academic Search

A B S T R A C T Yellow serradella (Ornithopus compressus L.) and pink serradella (Ornithopus sativus Brot.) are two new annual forage legume species for infertile, acidic, and light texture soils, in dryland areas of the Mediterra- nean zone of Chile. Seven cultivars of yellow serrade- lla and one cultivar of pink serradella, developed by the Center for

455

Equipamentos interativos: uma contribui»c~ao dos centros e museus de ci^encias contempor^aneos para a educa»c~ao cient¶‡flca formal (Interactive equipments: a contribution of contemporary centers and museums of science for the formal scientiflc education)  

Microsoft Academic Search

Este artigo descreve um processo de pesquisa que buscou encontrar, nos centros e museus de ci^encias, con- tribui»c~oes para a educa»c~ao cient¶‡flca formal. Foi realizado na forma de pesquisa-a»c~ao com a participa»c~ao, como pesquisadores, de 10 (dez) estudantes de cursos de Licenciatura (em f¶‡sica, qu¶‡mica e matematica) que procu- raram identiflcar, nos equipamentos interativos dispon¶‡veis nesses espa»cos, aqueles que permitissem

Maura Ventura Chinelli; Grazielle Rodrigues Pereira; Luiz Edmundo; Vargas de Aguiar

456

Avaliação da qualidade de vida geral de agentes comunitários de saúde: a contribuição relativa das variáveis sociodemográficas e dos domínios da qualidade de vida Evaluation of overall quality of life of community health agents: the relative contribution of sociodemographic variables and domains of quality of life  

Microsoft Academic Search

Objective: This study aimed at evaluating the relative contribution of each life quality domain (physical, psychological, social relationships and environment) and of sociodemographic variables to overall quality of life of community health agents from a municipality located in the State of Paraná, Brazil. Methods: A descriptive and cross-sectional study was carried out using a quantitative approach. The sample was composed

Cláudia G. C. Kluthcovsky; Angela Maria Magosso Takayanagui; Claudia Benedita dos Santos; Fábio Aragão Kluthcovsky

457

Communicacion Expresiva: Como los ninos nos envian mensajes [and] Comunicacion Receptiva: Como los ninos entienden nuestros mensajes [and] Interacciones de Comunicacion: Hacen falta dos. Hojas informativa de DB-LINK (Communication Interactions: It Takes Two [and] Receptive Communication: How Children Understand Your Messages to Them [and] Expressive Communication: How Children Send Their Messages to You. DB-LINK Fact Sheets).  

ERIC Educational Resources Information Center

This document consists of three separately published fact sheets combined here because of the close relationship of their subject matter. The first fact sheet, "Communication Interactions: It Takes Two" (Kathleen Stremel), defines communication; suggests ways to find opportunities for interactive communication; offers specific suggestions for…

Stremel, Kathleen

458

|61|Trabalho & Educao | Belo Horizonte | v.23 | n.1 | p. 61-74| jan-abr | 2014 O retOrnO de experincia e O lugar dOs espaOs de discussO sObre O  

E-print Network

organizações (DE LA GARZA; FADIER, 2007) e uma das maneiras de melhorar a sua qualidade está baseada na inefficient in several organizations (DE LA GARZA; FADIER, 2007) and one of the ways to improve their quality maneira, o retorno de experiência se torna fragilizado (DE LA GARZA; FADIER, 2007). O conhecimento que os

Boyer, Edmond

459

ESTIMATIVA DA MAGNITUDE DOS DESCRITORES AFETIVOS DE DOR POR MÉDICOS, ENFERMEIRAS E PACIENTES DE UM SERVIÇO DE ONCOLOGIA: UM ENFOQUE DA PSICOFÍSICA CLÍNICA The estimation of the magnitude of affective descriptors of pain by doctors, nurses and patients of an oncology service: a clinical psychophysics approach  

Microsoft Academic Search

The aim of this experimental study was to validate a psychophysical scale of language perception and to rank the pain intensity associated to each one of the descriptors, verifying its consistency-reliability and inter-subjective agreement among professionals and patients. The research was held at the Clinics Hospital of Ribeirão Preto Medical School, from January to June, 2005, with 41 professionals and

Catarina Nívea Bezerra

460

A UNIVERSIDADE COMO ESPAÇO PROMOTOR DE QUALIDADE DE VIDA: VIVÊNCIAS E EXPRESSÕES DOS ALUNOS DE ENFERMAGEM1 THE UNIVERSITY AS A PLACE THAT PROMOTES QUALITY OF LIFE: PERCEPTIONS AND EXPERIENCES OF NURSING STUDENTS LA UNIVERSIDAD COMO UN ESPACIO PROMOTOR DE LA CALIDAD DE VIDA: VIVENCIAS Y EXPRESIONES DE LOS ALUMNOS DE ENFERMERÍA  

Microsoft Academic Search

The objective of this study was to know how graduation students from nursing school perceive their quality of life. The approach used was the qualitative mode. The data were collected through individual interviews with five students: to you what means having quality of life; report about personal experiences or experiences that you have observed in your daily routine as a

Oliveira RA; Ciampone MHT; Raquel Aparecida de Oliveira; Maria Helena Trench Ciampone

461

Adaptação dos Testes de Lactato Mínimo, Potência Crítica e Limiar Anaeróbio para Avaliação da Transição Anaeróbia-Anaeróbia em Protocolo Específico para o Tênis de Mesa Adaptation of the Lactate Minimum, Critical Power and Anaerobic Threshold Tests for Assessment of the Aerobic\\/Anaerobic Transition in a Protocol Specific for Table Tennis  

Microsoft Academic Search

The aims of the present study were to adapt the lactate minimum, critical power model and anaerobic threshold tests for assessment of the aerobic-anaerobic transition in specific test for table tennis; to verify the reproducibility of the lactate minimum test and to verify the relationship between these specific procedures with the anaerobic threshold determined in running on treadmill (AnTTR). Eleven

Érika Alves Morel; Alessandro Moura Zagatto

462

Utilização dos sistemas de informação orientados para a mensuração da rentabilidade individual de clientes: uma pesquisa empírica no setor hoteleiro do nordeste brasileiro. Usage of information systems guided towards the measurement of customers' individual profitability: an empiric research in the hotel sector of Brazilian northeast  

Microsoft Academic Search

The present article aims at discussing the importance of an information system guided for the measurement of individual customer profitability, through a research in the hotel sector of Brazilian Northeast. The works deals with the problems that can be caused by the absence of information on customers' profitability, discusses some aspects that involve its measurement and it presents the usefulness

Carla Renata Silva Leitão; José Dionísio Gomes da Silva; Aldo Leonardo Cunha Callado

463

Prática alimentar no primeiro ano de vida de crianças atendidas pelo Serviço Público de Saúde no Município de Teresina-PI Food practice in the first year of life on children attended by the Public Health Service in the municipal district of Teresina-PI REGILDA SARAIVA DOS  

Microsoft Academic Search

This study was carried out to depict the feeding habits of children assisted by the public health services in the city of Teresina-PI in their first year of life. The data were collected from April to August 2001 in the three biggest infant health centers. During the interview with a nutritionist, a form with the identification data was filled out.

REIS MOREIRA ARAÚJO; DÉBORA SILMARA; SILVA MOURA; ANTÔNIO DA MOTA; BUONGERMINO SOUZA; SOPHIA CORNBLUTH

464

Comunicação Preliminar Entero-omentectomia adaptativa: Bases fisiológicas e evolucionárias de uma proposta cirúrgica auxiliar no tratamento de diabetes tipo 2 Relato dos dois primeiros casos Preliminary Report Adaptive entero-omentectomy: Physiological and evolutionary bases of an auxiliary treatment to type 2 diabetes A report on the first two cases  

Microsoft Academic Search

Objective: The objective of this article is to report on a new surgical strategy specifically designed to treat type 2 diabetes: adaptive entero-omentectomy (AEO), and present its rationale and preliminary results. Some techniques used in bariatric surgery are capable of producing fast improvement in type 2 Diabetes Mellitus, before significant loss of weight, due to metabolic changes that are currently

Sérgio Santoro; Manoel Carlos; Prieto Velhote; Carlos Eduardo Malzoni; Alexandre Sérgio Garcia Mechenas

465

Preliminary Report Adaptive entero-omentectomy: Physiological and evolutionary bases of an auxiliary treatment to type 2 diabetes A report on the first two cases Comunicação Preliminar Entero-omentectomia adaptativa: Bases fisiológicas e evolucionárias de uma proposta cirúrgica auxiliar no tratamento de diabetes tipo 2 Relato dos dois primeiros casos  

Microsoft Academic Search

Objective: The objective of this article is to report on a new surgical strategy specifically designed to treat type 2 diabetes: adaptive entero-omentectomy (AEO), and present its rationale and preliminary results. Some techniques used in bariatric surgery are capable of producing fast improvement in type 2 Diabetes Mellitus, before significant loss of weight, due to metabolic changes that are currently

Sérgio Santoro; Manoel Carlos; Prieto Velhote; Carlos Eduardo Malzoni; Alexandre Sérgio Garcia Mechenas

466

RENDIMENTO DA PUPUNHEIRA EM FUNÇÃO DA DENSIDADE DE PLANTIO, DIÂMETRO DE CORTE E MANEJO DOS PERFILHOS NO VALE DO SÃO FRANCISCO Effect of density, cut-off diameter classes and shoot number on production and yield of irrigated plant peach palm at San Francisco River Valley  

Microsoft Academic Search

The objective of this experiment was to evaluate the effect of planting density, cut-off diameter classes and shoot number on heart of palm production on irrigated peach palm. The experimental layout was a randomized split-plot design with a factorial arrangement in the split-plot with four replicates. The whole plots were plant spacing S¹ - 2 x 1 m and S²

José Egidio Flori; Geraldo Milanez de Resende; Marcos Antônio Drumond

467

A Powerful Method of Measuring Sea Wave Spectra and their Direction  

NASA Astrophysics Data System (ADS)

Besides the need of precise measurements of water levels of the sea, there is an increasing demand for assessing waves in height and direction for different purposes like sea-wave modelling and coastal engineering. The design of coastal structures such as piles, breakwaters, and offshore structures like wind farms must take account of the direction of the impacting waves. To date, records of wave directions are scarce. The reason for this might be the high costs of purchasing and operating such measuring devices. These are usually buoys, which require regular maintenance. Against this background, the German Federal Institute of Hydrology (BfG) developed a low-cost directional sea-wave monitoring system that is based on commercially available liquid-level radar sensors. These sensors have the advantage that they have no contact to the fluid, i.e. the corrosive sea water. The newly developed device was tested on two sites. One is the tide gauge 'Borkum Südstrand' that is located in the southern North Sea off the island of Borkum. The other one is the 'Research Platform FINO1' approximately 45 km north of the island of Borkum. The main focus of these tests is the comparison of the data measured by the radar-based system with those of a conventional Directional Wave Rider Buoy. The general conditions at the testing sites are good for the tests. At the tide gauge 'Borkum Südstrand' waves propagate in different directions, strongly influenced by the morphological conditions like shallow waters of the Wadden Seas and the coast of the island of Borkum. Whereas on the open sea, at the site FINO1, the full physical conditions of the sea state, like heavy storms etc. play an important role. To determine and measure the direction of waves, the device has to be able to assess the wave movements in two dimensions. Therefore, an array of several radar sensors is required. Radar sensors are widely used and well established in measuring water levels, e.g. in tanks and basins. They operate by emitting a chain of electromagnetic pulses at a frequency of 26 GHz twice per second and, in turn, detect the backscatter information from the water surface. As the travelling time of each pulse is proportional to the distance between water surface and sensor, the height of the water surface can be easily calculated. To obtain the directional information of the sea state, all four radar sensors in the array have to collect simultaneously the wave profiles at fixed points. The Wave Rider Buoy works in a completely different way. Here, the wave height is calculated by the double integration of the measured vertical acceleration. By correlating the three-dimensional motion data, which are gained from gravity-stabilized vertical and horizontal accelerometers, the directional wave spectrum can be derived. Data of both devices were collected and analysed. During the hurricane Xaver, extreme water levels and heavy sea hit the North Sea coast on 5 and 6 December 2013. The radar array at the testing site FINO1 measured wave heights in the order of 15.5 meters. Furthermore, it was possible to detect significant wave heights, the mean wave direction, and the spread of the sea state. For the first time the accuracy of the wave height distribution could be determined as well.

Blasi, Christoph; Mai, Stephan; Wilhelmi, Jens; Zenz, Theodor; Barjenbruch, Ulrich

2014-05-01

468

Analysis of modified MYJ and YSU boundary layer schemes in WRF-Chem with respect to simulated boundary layer heights and pollutant concentrations  

NASA Astrophysics Data System (ADS)

To improve the performance of boundary layer schemes currently applied within WRF-Chem (Grell et al., 2005), the Mellor-Yamada-Janjic (MYJ) model (Mellor and Yamada 1982) and the Yonsei University (YSU) PBL scheme (Hong et al. 2006) have been updated using data from a 100 m high offshore measurement tower called FINO1. The turbulence intensity in the Mellor-Yamada-Janjic model has been enhanced as described in Foreman and Emeis (2012). An alternative to the exchange coefficient for stable stratification in the YSU scheme is described in Foreman et al. (2014). These modifications to the two schemes have been applied and are compared with the existing schemes. For example, the updated MYJ scheme results in an improved representation of the turbulent kinetic energy throughout the boundary layer as compared with the measurements at FINO1. The modified MYJ and YSU schemes, which have been originally developed for wind energy applications, have been implemented into version 3.5 of the WRF model. Simulations with WRF-Chem were carried out for Europe and the region of Augsburg in order to evaluate the effect of the modified PBL schemes on simulated PBL heights, gas phase pollutant and aerosol concentrations. Foreman, R.J. and S. Emeis, 2012. A method for increasing the turbulent kinetic energy in the Mellor-Yamada-Janjic boundary layer parametrization. Boundary Layer Meteorology 145:329-349. Foreman, R.J. S. Emeis and B. Canadillas, 2014. Stable boundary layer parametrization without eddy viscosity or turbulent kinetic energy equation approaches. Submitted to Boundary Layer Meteorology 2014. Grell, G. A., Peckham, S. E., Schmitz, R., McKeen, S. A., Frost, G., Skamarock,W. C., and Eder, B., 2005. Fully Coupled Online Chemistry within the WRF Model. Atmospheric Environment 39, 6957-6975. Hong S, Noh Y, Dudhia J 2006. Nonlocal boundary layer vertical diffusion in a medium-range forecast model. Mon Wea Rev 124:2322-2339. Mellor GL, Yamada T 1982. Development of a turbulence closure model for geophysical fluid problems. Rev. Geophys. Space Phys 20:851-875.

Forkel, Renate; Foreman, Richard; Emeis, Stefan

2014-05-01

469

Melatonin is formed during winemaking at safe levels of biogenic amines.  

PubMed

The European Food Safety Authority (EFSA) has accepted health claims for the food constituent melatonin because scientific evidence shows that it is effective at reducing sleep onset latency, and that it alleviates subjective feelings of jet lag. According to risk assessment data published by EFSA in 2011, histamine and tyramine are the most toxic biogenic amines and the ones that most affect food safety. The potential formation of biogenic amines is a concern in fermented foods because of the intense microbial activity. Conversely, Saccharomyces cerevisiase produces melatonin during fermentation in the winemaking process. This study aims to evaluate the production of potentially healthy melatonin and toxic biogenic amines during the winemaking process. To this end, 11 biogenic amines (agmatine, cadaverine, histamine, methylamine, 2-phenylethylamine, putrescine, spermidine, spermine, tyramine, tryptamine and melatonin) have been monitored during the making of 5 monovarietal wines (Merlot, Palomino Fino, Syrah, Tempranillo and Tintilla de Rota). This paper shows that alcoholic and malolactic fermentation plays a crucial role in the formation of these compounds. Bioactive melatonin is formed at safe levels of the other biogenic amines. PMID:23531627

Rodriguez-Naranjo, M Isabel; Ordóñez, José L; Callejón, Raquel M; Cantos-Villar, Emma; Garcia-Parrilla, M Carmen

2013-07-01

470

Application of sequence-independent amplification (SIA) for the identification of RNA viruses in bioenergy crops.  

PubMed

Miscanthus x giganteus, energycane, and Panicum virgatum (switchgrass) are three potential biomass crops being evaluated for commercial cellulosic ethanol production. Viral diseases are potentially significant threats to these crops. Therefore, identification of viruses infecting these bioenergy crops is important for quarantine purposes, virus resistance breeding, and production of virus-free planting materials. The application is described of sequence-independent amplification, for the identification of RNA viruses in bioenergy crops. The method involves virus partial purification from a small amount of infected leaf tissue (miniprep), extraction of viral RNA, amplification of randomly primed cDNAs, cloning, sequencing, and BLAST searches for sequence homology in the GenBank. This method has distinct advantage over other virus characterization techniques in that it does not require reagent specific to target viruses. Using this method, a possible new species was identified in the genus Marafivirus in switchgrass related to Maize rayado fino virus, its closest relative currently in GenBank. Sugarcane mosaic virus (SCMV), genus Potyvirus, was identified in M.xgiganteus, energycane, corn (Zea mays), and switchgrass. Other viruses identified were: Maize dwarf mosaic virus (MDMV), genus Potyvirus, in johnsongrass (Sorghum halepense); Soil borne wheat mosaic virus (SBWMV), genus Furovirus, in wheat (Triticum aestivum); and Bean pod mottle virus (BPMV), genus Comovirus, in soybean (Glycine max). The method was as sensitive as conventional RT-PCR. This is the first report of a Marafivirus infecting switchgrass, and SCMV infecting both energycane and M. x giganteus. PMID:20638415

Agindotan, Bright O; Ahonsi, Monday O; Domier, Leslie L; Gray, Michael E; Bradley, Carl A

2010-10-01

471

Estimate of significant wave height from non-coherent marine radar images by multilayer perceptrons  

NASA Astrophysics Data System (ADS)

One of the most relevant parameters to characterize the severity of ocean waves is the significant wave height ( H s ). The estimate of H s from remotely sensed data acquired by non-coherent X-band marine radars is a problem not completely solved nowadays. A method commonly used in the literature (standard method) uses the square root of the signal-to-noise ratio (SNR) to linearly estimate H s . This method has been widely used during the last decade, but it presents some limitations, especially when swell-dominated sea states are present. To overcome these limitations, a new non-linear method incorporating additional sea state information is proposed in this article. This method is based on artificial neural networks (ANNs), specifically on multilayer perceptrons (MLPs). The information incorporated in the proposed MLP-based method is given by the wave monitoring system (WaMoS II) and concerns not only to the square root of the SNR, as in the standard method, but also to the peak wave length and mean wave period. Results for two different platforms (Ekofisk and FINO 1) placed in different locations of the North Sea are presented to analyze whether the proposed method works regardless of the sea states observed in each location or not. The obtained results empirically demonstrate how the proposed non-linear solution outperforms the standard method regardless of the environmental conditions (platform), maintaining real-time properties.

Vicen-Bueno, Raúl; Lido-Muela, Cristina; Nieto-Borge, José Carlos

2012-12-01

472

Courtship behavior of different wild strains of Ceratitis Capitata (Diptera: Tephritidae)  

SciTech Connect

This study documents differences in the courtship behavior of wild strains of Ceratitis capitata (Wiedemann) from Madeira (Portugal), Hawaii (U.S.A.), Costa Rica, and Patagonia (Argentina). Some traits showed large variations and others substantial overlaps. The angle at which the male faced toward the female at the moment of transition from continuous wing vibration and intermittent buzzing changed very little during the course of courtship in all strains, but males from Madeira tended to face more directly toward the female than other males. Females tended to look more, and more directly, toward the males as courtship progressed in all strains. The distance between male and female tended to decrease as courtship proceeded in all strains, but the distances at which males initiated continuous vibration, intermittent buzzing, and jumped onto the female were relatively less variable between strains, except for the strain from Costa Rica. Flies of Madeira courted for longer and the male moved his head and buzzed his wings longer than the other strains. (author) [Spanish] Este estudio documenta diferencias en el comportamiento de cortejo de cepas silvestres de Ceratitis capitata (Wied.) provenientes de Madeira (Portugal), Hawaii (Estados Unidos de Norte America), Costa Rica y Patagonia (Argentina). Algunas caracteristicas mostraron grandes variaciones y traslape substancial. Los angulos a los cuales los machos miraron hacia las hembras cambiaron muy poco en el momento de la transicion de la vibracion continua al zumbido intermitente durante el curso del cortejo en todo las cepas, pero los machos de Madeira tendieron a enfrentar mas directamente a la hembra que otros machos. Los angulos de las hembras disminuyeron claramente durante el cortejo en todas las cepas. La distancia entre el macho y la hembra tendio a disminuir conforme el cortejo continuaba en todas las cepas, pero las distancias a las cuales los machos iniciaron la vibracion continua, el zumbido intermitente, y el salto sobre la hembra eran relativamente menos variables entre cepas excepto la cepa de Costa Rica. Moscas de Madeira cortejaron mas tiempo y el macho moviosu cabeza y zumbaba sus alas mas prolongadamente que las otras cepas. (author)

Briceno, D. [Escuela de Biologia, Universidad de Costa Rica, Ciudad Universitaria (Costa Rica); Eberhard, W. [Escuela de Biologia, Universidad de Costa Rica, Ciudad Universitaria and Smithsonian Tropical Research Institute (Costa Rica); Vilardi, J. [Dpto. de Ciencias Biologicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires (Argentina); Cayol, J.-P. [Technical Cooperation Division, IAEA, Wagramerstrasse 5, P.O. Box 100 A-1400, Vienna (Austria); Shelly, T. [A. C. , D. , E. USDA/APHIS/CPHST, 41-650 Ahiki St. Waimanalo, HI 96795 (United States)

2007-03-15

473

48 CFR 652.219-71 - Section 8(a) Direct Awards.  

Code of Federal Regulations, 2011 CFR

...under the purchase order or contract. The DOS contracting officer shall also coordinate with SBA prior to processing any novation agreement. The DOS contracting officer may assign contract administration functions to a contract administration...

2011-10-01

474

48 CFR 652.219-71 - Section 8(a) Direct Awards.  

Code of Federal Regulations, 2010 CFR

...under the purchase order or contract. The DOS contracting officer shall also coordinate with SBA prior to processing any novation agreement. The DOS contracting officer may assign contract administration functions to a contract administration...

2010-10-01

475

Asunción Garden  

USGS Multimedia Gallery

Colonial style courtyard in Asunción with various ornamentals, including exotic species. Se ven dos ejemplares de Palmera Imperial (especie exótica), una la que está en primer plano, con una orquídea Cattleya sp., dos Cocoteros o Mbocayá (Acrocomia totai). La ...

476

702014-15 Suggested Course Plan Ise (Info. sYsTems)track: OperatiOnS  

E-print Network

of Digital Bus. Innovation DOS 433: Bus. Info. Sys. Analysis and Design DOS 435: Enterprise Data Architecture Statistics I ISE 310l: Prod. I: Facilities & Logistics ISE 330: Intro. to Operations Research I ISE 410: Prod

Zhou, Chongwu

477

Osteopathic Medicine: About Osteopathic Medicine  

MedlinePLUS

... Advancing the distinctive philosophy and practice of osteopathic medicine Inside the AOA About the AOA AOA Annual ... DOs Licensed? How Are DOs Certified? About Osteopathic Medicine Page Content You are more than just the ...

478

PrmioSecil2ol2 UNIVERSIDADES  

E-print Network

os autores dos projectos vencedores dos Prémios Secil Universidades Arquitectura e Engenharia Civil. Universidades Arquitectura Cláudio Crespo Gonçalves Universidade Autónoma de Lisboa Projecto: Mergulho Ana Rita Faculdade de Arquitectura da Universidade do Porto Projecto: Academia de Dança David Gonçalves Monteiro

Instituto de Sistemas e Robotica

479

ADMINISTRAO CENTRAL DA UFSC Prof. Lcio Jos Botelho  

E-print Network

.............................................................................................................. 27 4.9 Distribuição dos candidatos inscritos e classificados por sexo ................................. 28 4.10 Distribuição dos candidatos inscritos e classificados por curso e sexo

Floeter, Sergio Ricardo

480

Paradojas del Infinito. El Teorema de Banach-Tarski. Julio Bernus.  

E-print Network

de giros y traslaciones, pueden ser ensambladas para formar dos bolas disjuntas de idéntico radio descomposición finita entre dos conjuntos: La circunferencia unidad de centro el origen C es equivalente por

Bernués, Julio

481

DOG Nm. 114 Luns, 17 de xuo de 2013 Px. 23073 ISSN1130-9229 Depsito legal C.494-1998 http://www.xunta.es/diario-oficial-galicia  

E-print Network

, coa experiencia e cos resultados acumulados desde a posta en mar- cha e a execución dos instrumentos e industrial xunto co deseño dos instrumentos necesarios para iso, e considérase esencial impulsar a innovación

Fraguela, Basilio B.

482

A .--A ention has recently been focused on microbes that occur in the plum-age of wild birds and can degrade feathers under laboratory conditions and in poultry-  

E-print Network

. licheniformis degraded wing feathers of Northern Cardinals (Cardinalis cardinalis) when applied twice (with licheniformis, Cardinalis cardinalis, European Starling, feather- degrading bacteria, keratin, Northern Cardinal Cardinalis cardinalis tras ser aplicada dos veces durante el invierno (con un intervalo de dos semanas

Forsyth, Mark

483

Amiga for Sale Erste Amiga-Messe in Deutschland 90/ 1, S. 22 aktu ...  

E-print Network

... DOS Systeme mit System Personalcomputer von Low-Cost bis High-Tech 90/ ..... Mac Barfuß in die Library Ein wenig bekanntes Feature des AmigaDOS 90/ 6, .... Know Auf dem Präsentierteller Programmierung des Presentation Managers, ...

484

Matthew Melissa Physics 141A Spring 2013 1 Giant Magnetoresistance  

E-print Network

(more overlap) · 3d DOS at EF larger for minority-spin electrons than majority-spin electrons · Higher DOS of 3d states Stronger scattering : Figure 8. Ferromagnetic DOS and Spin-Dependent Scattering #12 Deskstar 16GP Titan: 16.8 GB · 2000: Used in 100% of hard drives · Advantages ­ Incre

Budker, Dmitry

485

Second Life: contextualização e inserção social do ensino da informática  

Microsoft Academic Search

Resumo - Desde 2006, realizam-se na UTAD ensaios de utilização do mundo virtual Second Life® no ensino de programação de computadores. Nestes dois anos foram identificados problemas no uso da plataforma para este fim, mas também vantagens, nem sempre provenientes dos locais esperados: a imersão social e cultural dos alunos foi factor importante de compreensão dos conceitos informáticos. A imersão

Leonel Morgado

2008-01-01

486

Aplicação clínica das resinas de nanotecnologia Nanotechnology resins clinical application  

Microsoft Academic Search

Key-words A aparência do sorriso tem grande impacto na vida dos indivíduos, afetando desde o convívio social até relações profissionais. Assim a Odontologia Estética, com o passar do tempo, tem evoluído em busca de materiais e técnicas restauradoras que mimetizem o aspecto natural dos elementos dentários. Um dos saltos qualitativos foi conseguido com o emprego da nanotecnologia aos compósitos restauradores

Renan Menezes Cardoso; George Henrique; Santos Maia; Clênio Alves Melo; Renata Pedrosa Guimarães; Paulo Fonseca

487

Utilização da metodologia REML\\/BLUP na seleção de clones de eucalipto The application of the REML\\/BLUP methodology for eucalypt clones selection  

Microsoft Academic Search

E. urograndis instalado em Eunápolis, BA. Utilizaram-se a Metodologia de Modelos Mistos para a obtenção da Melhor Predição Linear não Viesada (BLUP) dos efeitos genotípicos e o processo da Máxima Verossimilhança Restrita (REML) para a estimação dos componentes de variância e dos parâmetros genotípicos. O processamento foi realizado pelo programa SELEGEN, desenvolvido pela Embrapa, cujo vetor de soluções apresenta os

Carlos Henrique Garcia; Maria Cristina Stolf Nogueira

488

Correlation between critical pitting temperature and degree of sensitisation on alloy 2205 duplex stainless steel  

Microsoft Academic Search

In this study effect of different ageing conditions on intergranular corrosion, pitting corrosion and relation between critical pitting temperature (CPT) and degree of sensitisation (DOS) was investigated by potentiostatic polarisation and double loop-EPR methods. The results showed by increasing sensitisation time, DOS increased and measured CPT value decreased. In addition the values of DOS and CPT of specimens aged at

N. Ebrahimi; M. Momeni; M. H. Moayed; A. Davoodi

2011-01-01

489

SLAMM Source Code Attribute VB_Name = "CalcMainModule".................................................................................................................................2  

E-print Network

pLUCurbRatio(15) As Single Private mRv(9, 17) As Single ' R sub v value from Runoff Coefficient Parameter File, DOS == Rv() Private mRainAr(17) As Single ' Rainfall Array values from Runoff Coef. parameter file, DOS == RainAr() Private mDEC(12, 17) As Single ' Drainage Efficiency Coefficient, DOS == DEC

Pitt, Robert E.

490

UNIVERSIDADE FEDERAL DE SANTA CATARINA PR-REITORIA DE ENSINO DE GRADUAO  

E-print Network

da avaliação institucional - PAIUFSC 15 Figura 2: Estrutura das questões dos instrumentos de auto-avaliação 22 Figura 3: Movimento de construção dos instrumentos de auto-avaliação 23 Figura 4: Movimento interno de construção dos instrumentos de auto- avaliação nas unidades 24 Quadro 1: Diretrizes para o

Floeter, Sergio Ricardo

491

Whenever You Use a Computer You Are Using a Program Called an Operating System.  

ERIC Educational Resources Information Center

Examines design, features, and shortcomings of eight disk-based operating systems designed for general use that are popular or most likely to affect the future of microcomputing. Included are the CP/M family, MS-DOS, Apple DOS/ProDOS, Unix, Pick, the p-System, TRSDOS, and Macintosh/Lisa. (MBR)

Cook, Rick

1984-01-01

492

TerraLib: An Open Source GIS Library for Large-Scale Environmental  

E-print Network

, Brazil's national database for monitoring deforestation in the Amazon rainforest, which manages more than´e dos Campos, Brazil, e-mail: gilberto@dpi.inpe.br L´ubia Vinhas National Institute for Space Research (INPE), Av dos Astronautas 1758, 12227-010, S~ao Jos´e dos Campos, Brazil, e-mail: lubia

Camara, Gilberto

493

Enhancing the prediction of turbulent kinetic energy in the marine atmospheric boundary layer  

NASA Astrophysics Data System (ADS)

A recent study by Shaikh and Siddiqui (2010) has shown definitively that the turbulent structure of boundary layer flows over water is fundamentally different compared with that over a smooth surface and with that over a solid wavy surface whose wave amplitude is similar to that of dynamically wind-generated waves. In light of this new information, the constants of the Mellor-Yamada boundary layer model, which are based on laboratory data over solid walls, are re-evaluated to suit the turbulent dynamics of a dynamic, wavy surface. The constants are based on the principal that the enhanced turbulent production in the vicinity of waves is redistributed among the normal stress components by virtue of the enhanced pressure-velocity covariances also found in the vicinity of waves. There is then a feedback mechanism whereby enhanced normal stresses modify the dynamic surface. The net effect of this is that in the marine boundary layer, one can expect an enhancement of turbulent kinetic energy due to the enhancement of normal stresses at the expense of shear stresses. The constants in the Mellor-Yamada-Janjic planetary boundary layer scheme within the Weather Research and Forecasting (WRF) model are changed to fit this principal. Simulations are then performed and compared with data (wind speed and turbulent kinetic energy) from the FINO1 platform in the North Sea. It is found that while predictions of the wind speed are barely changed, the magnitude of the tke error (RMS) is reduced by up to 50%. This is expected to be practically relevant for the estimation of blade fatigue of wind energy converters, where the tke is an important parameter in this assessment. It could also be relevant for pollution dispersion in marine boundary layers.

Foreman, R. J.; Emeis, S.

2010-09-01

494

Statistical assessment of ocean observing networks - A study of water level measurements in the German Bight  

NASA Astrophysics Data System (ADS)

A set of tools for the statistical assessment of ocean observing networks is presented and applied for the analysis of different instrumentation scenarios in the German Bight. An optimal linear estimator is used to re-construct ocean state parameters from observations taking into account both the prior distribution of the state and measurement errors. The proposed method enables a re-construction of any scalar parameter or vector field with linear relationship to the state. The performance of the observing network is quantified in terms of the re-construction quality. Apart from the capability of the network to provide estimates of state parameters at the time of the observations, the potential of the measurements for forecasts is investigated as well. Furthermore, a generic method to compare single measurements with continuous observations is presented. Finally, a technique is described to quantify the relative importance of different components of an observational network. The proposed methods are applied to water level measurements in the German Bight. A numerical model is used to estimate the background statistics. Synthetic measurements provided by tide gauges, satellite altimeters, and HF radar are considered in the analysis. The estimation of the complete water level field in the German Bight is compared for altimeter and tide gauge measurements. It is shown that the orientation of the satellite track with respect to the coastline is of high relevance. The importance of water level measurements taken in deeper water, e.g., at the FINO-1 platform, is demonstrated. It is shown that continuous tide gauge measurements provide more information on the area mean water level in the German Bight than altimeter observations taken by ENVISAT and JASON-1/2. It is furthermore shown how the information provided by a tide gauge propagates with the Kelvin wave. Implications for the design of an assimilation scheme are discussed.

Schulz-Stellenfleth, J.; Stanev, E. V.

495

Salinity-Dependent Impacts of ProQ, Prc, and Spr Deficiencies on Escherichia coli Cell Structure  

PubMed Central

ProQ is a cytoplasmic protein with RNA chaperone activities that reside in FinO- and Hfq-like domains. Lesions at proQ decrease the level of the osmoregulatory glycine betaine transporter ProP. Lesions at proQ eliminated ProQ and Prc, the periplasmic protease encoded by the downstream gene prc. They dramatically slowed the growth of Escherichia coli populations and altered the morphologies of E. coli cells in high-salinity medium. ProQ and Prc deficiencies were associated with different phenotypes. ProQ-deficient bacteria were elongated unless glycine betaine was provided. High-salinity cultures of Prc-deficient bacteria included spherical cells with an enlarged periplasm and an eccentric nucleoid. The nucleoid-containing compartment was bounded by the cytoplasmic membrane and peptidoglycan. This phenotype was not evident in bacteria cultivated at low or moderate salinity, nor was it associated with murein lipoprotein (Lpp) deficiency, and it differed from those elicited by the MreB inhibitor A-22 or the FtsI inhibitor aztreonam at low or high salinity. It was suppressed by deletion of spr, which encodes one of three murein hydrolases that are redundantly essential for enlargement of the murein sacculus. Prc deficiency may alter bacterial morphology by impairing control of Spr activity at high salinity. ProQ and Prc deficiencies lowered the ProP activity of bacteria cultivated at moderate salinity by approximately 70% and 30%, respectively, but did not affect other osmoregulatory functions. The effects of ProQ and Prc deficiencies on ProP activity are indirect, reflecting their roles in the maintenance of cell structure. PMID:24443528

Kerr, Craig H.; Culham, Doreen E.; Marom, David

2014-01-01

496

Improving Public Reporting and Data Validation for Complex Surgical Site Infections After Coronary Artery Bypass Graft Surgery and Hip Arthroplasty  

PubMed Central

Background ?Deep and organ/space surgical site infections (D/OS SSI) cause significant morbidity, mortality, and costs. Rates are publicly reported and increasingly used as quality metrics affecting hospital payment. Lack of standardized surveillance methods threaten the accuracy of reported data and decrease confidence in comparisons based upon these data. Methods ?We analyzed data from national validation studies that used Medicare claims to trigger chart review for SSI confirmation after coronary artery bypass graft surgery (CABG) and hip arthroplasty. We evaluated code performance (sensitivity and positive predictive value) to select diagnosis codes that best identified D/OS SSI. Codes were analyzed individually and in combination. Results ?Analysis included 143 patients with D/OS SSI after CABG and 175 patients with D/OS SSI after hip arthroplasty. For CABG, 9 International Classification of Diseases, 9th Revision (ICD-9) diagnosis codes identified 92% of D/OS SSI, with 1 D/OS SSI identified for every 4 cases with a diagnosis code. For hip arthroplasty, 6 ICD-9 diagnosis codes identified 99% of D/OS SSI, with 1 D/OS SSI identified for every 2 cases with a diagnosis code. Conclusions ?This standardized and efficient approach for identifying D/OS SSI can be used by hospitals to improve case detection and public reporting. This method can also be used to identify potential D/OS SSI cases for review during hospital audits for data validation. PMID:25734174

Calderwood, Michael S.; Kleinman, Ken; Murphy, Michael V.; Platt, Richard; Huang, Susan S.

2014-01-01

497

Eigenvalue decomposition of spectral features in density of states curves  

NASA Astrophysics Data System (ADS)

The purpose of this paper is to show a computational strategy based on pattern recognition methods to extract features from density of states (DOS) curves that can be traced back to crystal chemistry and structure. We show how the knowledge base developed by eigenvalue decomposition of DOS curves derived from accurate DFT calculations for a few simple metals can serve as a training set for computing DOS spectra of other simple metals without requiring a separate set of DFT calculations. The comparison of these derived DOS curves are shown to agree with DFT calculations. The implications of this data-driven approach to model DOS curves of new materials as a way to generate approximations of DOS spectra prior to full scale DFT calculations in a high throughput fashion are also discussed.

Broderick, S. R.; Rajan, K.

2011-09-01

498

Teaching Materials! 1. PROGRAMS OF STUDY ! ! ! ! ! ! ! ! !  

E-print Network

, Teaching or Support.! GRADE BASIC TEXT & CURRICULUM LAB # 7 (9 Y) Avancemos 2 Dos 468.24 Ava Glencoe Spanish 1 438.25 Gle 8 (9Y) Avancemos 2 Dos 468.24 Ava Glencoe Spanish 1 438.25 Gle 9 (9Y) Avancemos 2 Dos 468.24 Ava Glencoe Spanish 1 438.25 Gle 10 (9Y) Aventura 2 468.24 Ave Glencoe Spanish 2 438.25 Gle

Burg, Theresa

499

Electrospun Carbon Nanofiber Webs with Controlled Density of States for Sensor Applications  

E-print Network

Electrospun carbon nanofiber (CNF) webs with controlled density of states (DOS) are synthesized through varying the carbonization conditions to manipulate the concentration of nanosized graphite domains. These materials ...

Mao, Xianwen

500

Nome Candidato Adriano Elias  

E-print Network

Ernandes Gomes Ferreira Everton Luis Backes Felipe Ayres do Nascimento Felipe dos Anjos Afonso Flora Ferreira Holderbaum Frederico Goncalves Pedrosa Igor Mendes Kruger Jairo João Taporisky Junior Kleber

Paraná, Universidade Federal do