Science.gov

Sample records for um velho problema

  1. Metaheuristicas e um Problema de Cobertura de custo unico Douglas S. Goncalves,

    E-print Network

    Gomes, Francisco A. M.

    de uma aplica¸c~ao real que aparece em jogos de azar. O desempenho das heur´isticas foi testado em^o, aposentado, passa boa parte de seu tempo imaginando uma forma de ganhar na loteria. Um dos jogos que tem despertado interesse de meu av^o ´e a lotomaluca. Na lotomaluca, voc^e deve em cada jogo marcar n dentre m n

  2. Lista de Problemas da Area II 1. Modelo de Blume-Capel I (Salinas): Considere um modelo unidimensional

    E-print Network

    Stariolo, Daniel Adrin

    N 2 , u( , )f( )f( ) e S NkB = - f() ln f() respectivamente. Minimizando a energia livre U - TS . 6. Ponto tricrtico (Pathria): Considere um sistema descrito por uma energia livre de Landau da transferncia. (b) Calcule expresses para a energia interna e a entropia por spin. (c) Qual o estado

  3. Scalable Motion-Aware Panoramic Videos Leonardo Sacht Luiz Velho

    E-print Network

    de Figueiredo, Luiz Henrique

    Scalable Motion-Aware Panoramic Videos Leonardo Sacht Luiz Velho Diego Nehab Marcelo Cicconet IMPA perceptually natural panoramic videos, that is, videos composed of wide-angle frames, where straight lines videos. By panoramic videos we mean videos where each frame is a wide-angle image. The notion

  4. Col^onia de Formigas: Uma Abordagem Para Resoluc~ao De Problemas De Layout

    E-print Network

    Gomes, Francisco A. M.

    Col^onia de Formigas: Uma Abordagem Para Resoluc~ao De Problemas De Layout Daniele Costa Silva formigas e propomos seu uso para resoluc~ao de problemas de layout. Palavras-Chaves. Col^onia de Formigas. Problemas de Layout. Metodos Heuristicos. 1 Introduc~ao O problema de layout e um problema antigo e ap

  5. The Cariris Velhos tectonic event in Northeast Brazil

    NASA Astrophysics Data System (ADS)

    dos Santos, Edilton Jos; Van Schmus, William Randall; Kozuch, Marianne; Neves, Benjamim Bley de Brito

    2010-01-01

    The Borborema Province in northeastern South America is a typical Brasiliano-Pan-African branching system of Neoproterozoic orogens that forms part of the Western Gondwana assembly. The province is positioned between the So Luis-West Africa craton to the north and the So Francisco (Congo-Kasai) craton to the south. For this province the main characteristics are (a) its subdivision into five major tectonic domains, bounded mostly by long shear zones, as follows: Mdio Corea, Cear Central, Rio Grande do Norte, Transversal, and Southern; (b) the alternation of supracrustal belts with reworked basement inliers (Archean nuclei + Paleoproterozoic belts); and (c) the diversity of granitic plutonism, from Neoproterozoic to Early Cambrian ages, that affect supracrustal rocks as well as basement inliers. Recently, orogenic rock assemblages of early Tonian (1000-920 Ma) orogenic evolution have been recognized, which are restricted to the Transversal and Southern domains of the Province. Within the Transversal Zone, the Alto Paje terrane locally includes some remnants of oceanic crust along with island arc and continental arc rock assemblages, but the dominant supracrustal rocks are mature and immature pelitic metasedimentary and metavolcaniclastic rocks. Contiguous and parallel to the Alto Paje terrane, the Riacho Gravat subterrane consists mainly of low-grade metamorphic successions of metarhythmites, some of which are clearly turbiditic in origin, metaconglomerates, and sporadic marbles, along with interbedded metarhyolitic and metadacitic volcanic or metavolcaniclastic rocks. Both terrane and subterrane are cut by syn-contractional intrusive sheets of dominantly peraluminous high-K calc-alkaline, granititic to granodioritic metaplutonic rocks. The geochemical patterns of both supracrustal and intrusive rocks show similarities with associations of mature continental arc volcano-sedimentary sequences, but some subordinate intra-plate characteristics are also found. In both the Alto Paje and Riacho Gravat terranes, TIMS and SHRIMP U-Pb isotopic data from zircons from both metavolcanic and metaplutonic rocks yield ages between 1.0 and 0.92 Ga, which define the time span for an event of orogenic character, the Cariris Velhos event. Less extensive occurrences of rocks of Cariris Velhos age are recognized mainly in the southernmost domains of the Province, as for example in the Poo Redondo-Maranc terrane, where arc-affinity migmatite-granitic and meta-volcano-sedimentary rocks show U-Pb ages (SHRIMP data) around 0.98-0.97 Ga. For all these domains, Sm-Nd data exhibit TDM model ages between 1.9 and 1.1 Ga with corresponding slightly negative to slightly positive ?Nd( t) values. These domains, along with the Borborema Province as a whole, were significantly affected by tectonic and magmatic events of the Brasiliano Cycle (0.7-0.5 Ga), so that it is possible that there are some other early Tonian rock assemblages which were completely masked and hidden by these later Brasiliano events. Cariris Velhos processes are younger than the majority of orogenic systems at the end of Mesoproterozoic Era and beginning of Neoproterozoic throughout the world, e.g. Irumide belt, Kibaride belt and Namaqua-Natal belt, and considerably younger than those of the youngest orogenic process (Ottawan) in the Grenvillian System. Therefore, they were probably not associated with the proposed assembly of Rodinia. We suggest, instead, that Cariris Velhos magmatism and tectonism could have been related to a continental margin magmatic arc, with possible back-arc associations, and that this margin may have been a short-lived (<100 m.y.) leading edge of the newly assembled Rodinia supercontinent.

  6. AFFINE SKELETONS AND MONGE-AMPRE EQUATIONS MOACYR ALVIM SILVA, RALPH TEIXEIRA AND LUIZ VELHO

    E-print Network

    de Figueiredo, Luiz Henrique

    AFFINE SKELETONS AND MONGE-AMPRE EQUATIONS MOACYR ALVIM SILVA, RALPH TEIXEIRA AND LUIZ VELHO Abstract. An important question about ane skeletons is the existence of dierential equations that are related to the Ane Distance and the Area Distance (hence to ane skeletons) in the same way the Eikonal

  7. A Virtual Environment for 3D-Photography VICTOR BOGADO, ASLA S, LUIZ VELHO

    E-print Network

    de Figueiredo, Luiz Henrique

    A Virtual Environment for 3D-Photography VICTOR BOGADO, ASLA S, LUIZ VELHO IMPA - Instituto de describes a virtual environment for 3D photography developed at the VISGRAF Lab. 1- Introduction 3D Photography is one of the "hot" areas of research due to its wide range of applicability and the diversity

  8. Space Filling Curve Dither with Adaptive Clustering Luiz Velho 1;2

    E-print Network

    de Figueiredo, Luiz Henrique

    , introduced in (Velho & Gomes, 1991), to change the size of pixel clusters according to local characteristics resolution in the reproduction of gray scale images. We dis cuss the control of pixel aggregation black and white pixels are evenly distributed throughout the image area. Clustered dot dithering methods

  9. MUAN: Animation for the rest of us Margareth Catoia Varela Luiz Velho Hedlena Bezerra Bruno Madeira

    E-print Network

    de Figueiredo, Luiz Henrique

    MUAN: Animation for the rest of us Margareth Catoia Varela Luiz Velho Hedlena Bezerra Bruno Madeira Janeiro, RJ. 22280-060 Abstract MUAN is a Stop Motion Animation System. The MUAN system allows animation, and con- sists of programs to create, edit, manipulate and visualize animations. 1. Introduction Although

  10. SEASONAL DISTRIBUTION OF MALARIA VECTORS (DIPTERA: CULICIDAE) IN RURAL LOCALITIES OF PORTO VELHO, RONDNIA, BRAZILIAN AMAZON

    PubMed Central

    GIL, Luiz Herman Soares; RODRIGUES, Moreno de Souza; de LIMA, Alzemar Alves; KATSURAGAWA, Tony Hiroshi

    2015-01-01

    We conducted a survey of the malaria vectors in an area where a power line had been constructed, between the municipalities of Porto Velho and Rio Branco, in the states of Rondnia and Acre, respectively. The present paper relates to the results of the survey of Anopheles fauna conducted in the state of Rondnia. Mosquito field collections were performed in six villages along the federal highway BR 364 in the municipality of Porto Velho, namely Porto Velho, Jaci Paran, Mutum Paran, Vila Abun, Vista Alegre do Abun, and Extrema. Mosquito captures were performed at three distinct sites in each locality during the months of February, July, and October 2011 using a protected human-landing catch method; outdoor and indoor captures were conducted simultaneously at each site for six hours. In the six sampled areas, we captured 2,185 mosquitoes belonging to seven Anopheles species. Of these specimens, 95.1% consisted of Anopheles darlingi, 1.8% An. triannulatus l.s., 1.7% An. deaneorum, 0.8% An. konderi l.s., 0.4 An. braziliensis, 0.1% An. albitarsis l.s., and 0.1% An. benarrochi. An. darlingi was the only species found in all localities; the remaining species occurred in sites with specific characteristics. PMID:26200969

  11. Brazilian mosquito (Diptera: Culicidae) fauna: I. Anopheles species from Porto Velho, Rondnia state, western Amazon, Brazil.

    PubMed

    Morais, Sirlei Antunes; Urbinatti, Paulo Roberto; Sallum, Maria Anice Mureb; Kuniy, Adriana Akemi; Moresco, Gilberto Gilmar; Fernandes, Aristides; Nagaki, Sandra Sayuri; Natal, Delsio

    2012-12-01

    This study contributes to knowledge of Anopheles species, including vectors of Plasmodium from the western Brazilian Amazon in Porto Velho, Rondnia State. The sampling area has undergone substantial environmental changes as a consequence of agricultural and hydroelectric projects, which have caused intensive deforestation and favored habitats for some mosquito species. The purpose of this study was to diagnose the occurrence of anopheline species from collections in three locations along an electric-power transmission line. Each locality was sampled three times from 2010 to 2011. The principal adult mosquitoes captured in Shannon trap were Anopheles darlingi, An. triannulatus, An. nuneztovari l.s., An.gilesi and An. costai. In addition, larvae were collected in ground breeding sites for Anopheles braziliensis, An. triannulatus, An. darlingi, An. deaneorum, An. marajoara, An. peryassui, An. nuneztovari l.s. and An. oswaldoi-konderi. Anopheles darlingi was the most common mosquito in the region. We discuss Culicidae systematics, fauna distribution, and aspects of malaria in altered habitats of the western Amazon. PMID:23152319

  12. Problemas sexuales y de fecundidad (hombres)

    Cancer.gov

    Muchos tratamientos del cncer y algunos tipos de cncer pueden causar efectos secundarios relacionados con la sexualidad y con la fecundidad. Ya sea que usted tenga o no estos problemas depende del tipo de tratamiento que recibe, de su edad al tiempo del tratamiento y del tiempo que ha pasado desde el tratamiento.

  13. Resolver o problema do armazenamento de energia

    E-print Network

    Instituto de Sistemas e Robotica

    Resolver o problema do armazenamento de energia OS SUPERCONDENSADORES CHARGE2CHANGE (C2C) PROMETEM EM SEGUNDOS, COM ENERGIA PARA HORAS, PODE SER UMA REALIDADE PRXIMA. Passaram dois sculos sobre muita energia mas demoram a carregar, ou a supercondensadores, que apesar de terem menor capacidade de

  14. Espaos de Escala Discretos Anderson Cunha, Ralph Teixeira e Luiz Velho

    E-print Network

    de Figueiredo, Luiz Henrique

    observável. Se observamos uma oresta e diminuímos a escala, vamos observar uma árvore dessa oresta. Diminuindo a escala, observamos um galho dessa árvore. Diminuindo ainda mais a escala, observamos uma folha apropriada. Para a localização dessa casa no planeta a escala 1:1.000.000 é apropriada. A escolha apropriada

  15. The geology of the Morro Velho gold deposit in the Archean Rio das Velhas greenstone belt, Quadriltero Ferrfero, Brazil

    USGS Publications Warehouse

    Vial, Diogenes Scipioni; DeWitt, Ed; Lobato, Lydia Maria; Thorman, Charles H.

    2007-01-01

    The Morro Velho gold deposit, Quadriltero Ferrfero region, Minas Gerais, Brazil, is hosted by rocks at the base of the Archean Rio das Velhas greenstone belt. The deposit occurs within a thick carbonaceous phyllite package, containing intercalations of felsic and intermediate volcaniclastic rocks and dolomites. Considering the temporal and spatial association of the deposit with the Rio das Velhas orogeny, and location in close proximity to a major NNW-trending fault zone, it can be classified as an orogenic gold deposit. Hydrothermal activity was characterized by intense enrichment in alteration zones of carbonates, sulfides, chlorite, white micabiotite, albite and quartz, as described in other Archean lode-type gold ores. Two types of ore occur in the deposit: dark gray quartz veins and sulfide-rich gold orebodies. The sulfide-rich orebodies range from disseminated concentrations of sulfide minerals to massive sulfide bodies. The sulfide assemblage comprises (by volume), on average, 74% pyrrhotite, 17% arsenopyrite, 8% pyrite and 1% chalcopyrite. The orebodies have a long axis parallel to the local stretching lineation, with continuity down the plunge of fold axis for at least 4.8km. The group of rocks hosting the Morro Velho gold mineralization is locally referred to aslapa seca. These were isoclinally folded and metamorphosed prior to gold mineralization. Thelapa secaand the orebodies it hosts are distributed in five main tight folds related to F1 (the best examples are the X, Main and South orebodies, in level 25), which are disrupted by NE- to E-striking shear zones. Textural features indicate that the sulfide mineralization postdated regional peak metamorphism, and that the massive sulfide ore has subsequently been neither metamorphosed nor deformed. Lead isotope ratios indicate a model age of 2.820.05Ga for both sulfide and gold mineralization. Thelapa secaare interpreted as the results of a pre-gold alteration process and may be divided into carbonatic, micaceous and quartzose types. The carbonaticlapa secais subdivided into gray and brown subtypes. Non-mineralized, gray carbonaticlapa secaforms the hanging wall to the orebodies, and is interpreted as the product of extreme CO2metasomatism during hydrothermal alteration. This dolomiticlapa secaranges in composition from relatively pure limestone and dolomite to silty limestone and dolomite. The brown carbonatic and micaceouslapa secasare the host rocks to gold. These units are interpreted to correspond to the sheared and hydrothermal products of metamorphosed volcaniclastic and/or volcanic rocks of varying composition from dacitic to andesitic, forming various types of schists and phyllites. The high-grade, massive sulfide orebodies occur at the base of the gray carbonaticlapa seca. Both disseminated mineralization and quartz veins are hosted by micaceouslapa seca. The data are consistent with a model of epigenetic mineralization for thelapa seca, from a hydrothermal fluid derived in part from the Archean basement or older crust material.

  16. Risk factors and prevalence of newborn hearing loss in a private health care system of Porto Velho, Northern Brazil

    PubMed Central

    de Oliveira, Juliana Santos; Rodrigues, Liliane Barbosa; Aurlio, Fernanda Soares; da Silva, Virgnia Braz

    2013-01-01

    OBJECTIVE: To determine the prevalence of hearing loss and to analyze the results of newborn hearing screening and audiological diagnosis in private health care systems. METHODS Cross-sectional and retrospective study in a database of newborn hearing screening performed by a private clinic in neonates born in private hospitals of Porto Velho, Rondnia, Northern Brazil. The screening results, the risk for hearing loss, the risk indicators for hearing loss and the diagnosis were descriptively analyzed. Newborns cared in rooming in with their mothers were compared to those admitted to the Intensive Care Unit regarding risk factors for hearing loss. RESULTS: Among 1,146 (100%) enrolled newborns, 1,064 (92.8%) passed and 82 (7.2%) failed the hearing screening. Among all screened neonates, 1,063 (92.8%) were cared in rooming and 83 (7.2%) needed intensive care; 986 (86.0%) were considered at low risk and 160 (14.0%) at high risk for hearing problems. Of the 160 patients identified as having high risk for hearing loss, 83 (37.7%) were admitted to an hospitalized in the Intensive Care Unit, 76 (34.5%) used ototoxic drugs and 38 (17.2%) had a family history of hearing loss in childhood. Hearing loss was diagnosed in two patients (0.2% of the screened sample). CONCLUSIONS: The prevalence of hearing loss in newborns from private hospitals was two cases per 1,000 evaluated patients. The use of ototoxic drugs, admission to Intensive Care Unit and family history of hearing loss were the most common risk factors for hearing loss in the studied population. PMID:24142311

  17. The prevalence of norovirus, astrovirus and adenovirus infections among hospitalised children with acute gastroenteritis in Porto Velho, state of Rondnia, western Brazilian Amazon

    PubMed Central

    Amaral, Maria Sandra Costa; Estevam, Grecy Kelli; Penatti, Marilene; Lafontaine, Roger; Lima, Ian Carlos Gomes; Spada, Paula Katharine Pontes; Gabbay, Yvone Benchimol; Matos, Najla Benevides

    2015-01-01

    Although viruses are well-established causes of acute gastroenteritis, few data on the circulation of these pathogens in Porto Velho, state of Rondnia, Brazil, are available. Thus, faecal samples from hospitalised diarrhoeic children, under six years of age, were collected and tested for the presence of norovirus (NoV), adenovirus (AdV) and astrovirus (AstV) from February 2010-February 2012. Specimens were screened by reverse-transcription polymerase chain reaction and viruses were found in 10.7% (63/591) of the cases. NoV, AdV and AstV were detected in 7.8%, 2% and 0.8% of the samples, respectively. NoV infection was observed at all ages and was most prevalent in zero-18-month-old children (84.7%; p = 0.002). A higher incidence of NoV was detected from February-April 2010, when it was found in 52.2% of the cases. Co-infections involving these viruses, rotavirus and enteropathogenic bacteria were detected in 44.4% (28/63) of the children with viral diarrhoea. Nosocomial infections were demonstrated in 28.6% (18/63) of the cases in which viruses were detected. The present paper reports, for the first time, the circulation of NoV and AstV among the paediatric population of Porto Velho and it contributes to our understanding of the roles of these pathogens in gastrointestinal infections. PMID:25946245

  18. The prevalence of norovirus, astrovirus and adenovirus infections among hospitalised children with acute gastroenteritis in Porto Velho, state of Rondnia, western Brazilian Amazon.

    PubMed

    Amaral, Maria Sandra Costa; Estevam, Grecy Kelli; Penatti, Marilene; Lafontaine, Roger; Lima, Ian Carlos Gomes; Spada, Paula Katharine Pontes; Gabbay, Yvone Benchimol; Matos, Najla Benevides

    2015-04-01

    Although viruses are well-established causes of acute gastroenteritis, few data on the circulation of these pathogens in Porto Velho, state of Rondnia, Brazil, are available. Thus, faecal samples from hospitalised diarrhoeic children, under six years of age, were collected and tested for the presence of norovirus (NoV), adenovirus (AdV) and astrovirus (AstV) from February 2010-February 2012. Specimens were screened by reverse-transcription polymerase chain reaction and viruses were found in 10.7% (63/591) of the cases. NoV, AdV and AstV were detected in 7.8%, 2% and 0.8% of the samples, respectively. NoV infection was observed at all ages and was most prevalent in zero-18-month-old children (84.7%; p = 0.002). A higher incidence of NoV was detected from February-April 2010, when it was found in 52.2% of the cases. Co-infections involving these viruses, rotavirus and enteropathogenic bacteria were detected in 44.4% (28/63) of the children with viral diarrhoea. Nosocomial infections were demonstrated in 28.6% (18/63) of the cases in which viruses were detected. The present paper reports, for the first time, the circulation of NoV and AstV among the paediatric population of Porto Velho and it contributes to our understanding of the roles of these pathogens in gastrointestinal infections. PMID:25946245

  19. (continuao das responsabilidades) um estudo em que voc talvez se inscreva, possvel

    E-print Network

    (continuao das responsabilidades) um estudo em que voc talvez se inscreva, possvel tambm que(locais) do estudo. Seguir as instrues dos pesquisadores. Certificar-se de que suas informaes sobre passado/presente, se for relevante para o estudo. Buscar a assistncia sade para qualquer problema

  20. O Problema da Ambigidade Lexical de Sentido na Comunicao Multilinge

    E-print Network

    Specia, Lucia

    , demonstrar a importância de um módulo dessa natureza em um sistema de comunicação multilingüe inglês normalmente emprega um módulo dessa natureza para identificar a tradução correta de um dado termo de busca nas língua-fonte (LF). Ambigüidades dessa natureza caracterizam sempre uma escolha imprescindível e cujos

  1. El problema de la imagen y la palabra

    E-print Network

    Martí nez de la Vega, Juan

    1988-04-01

    stream_size 15184 stream_content_type text/plain stream_name latr.v21.n2.041-046.pdf.txt stream_source_info latr.v21.n2.041-046.pdf.txt Content-Encoding UTF-8 Content-Type text/plain; charset=UTF-8 SPRING 1988 41 El... problema de la imagen y la palabra Juan Martnez de la Vega Nuestro teatro est lleno de problemas, y uno, definitivo, que complica por igual a la gente de teatro y al crtico, es su lujuriosa juventud. Nuestra panormica teatral de apenas cinco dcadas...

  2. Simulating deforestation and carbon loss in Amazonia: impacts in Brazil's Roraima state from reconstructing Highway BR-319 (Manaus-Porto Velho).

    PubMed

    Barni, Paulo Eduardo; Fearnside, Philip Martin; Graa, Paulo Maurcio Lima de Alencastro

    2015-02-01

    Reconstruction of Highway BR-319 (Manaus-Porto Velho) would allow for access from the "arc of deforestation" in the southern part of Brazil's Amazon region to vast blocks of forests in central and northern Amazonia. Building roads is known to be a major driver of deforestation, allowing entry of squatters, and other actors. Rather than deforestation along the highway route, here we consider the road's potential for stimulating deforestation in a separate location, approximately 550 km north of BR-319's endpoint in Manaus. Reconstructing BR-319 has great potential impact to start a new wave of migration to this remote region. The southern portion of the state of Roraima, the focus of our study, is already connected to Manaus by Highway BR-174. We modeled deforestation in southern Roraima and simulated carbon emissions between 2007 and 2030 under four scenarios. Simulations used the AGROECO model in DINAMICA-EGO software. Two scenarios were considered with reconstruction of BR-319 and two without this road connection. For each of the two possibilities regarding BR-319, simulations were developed for (1) a "conservation" (CONSERV) scenario that assumes the creation of a series of protected areas, and (2) a "business-as-usual" (BAU) scenario that assumes no additional protected areas. Results show that by 2030, with BR-319 rebuilt, deforestation carbon emissions would increase between 19% (CONSERV) and 42% (BAU) over and above those corresponding to no-road scenarios. PMID:25472831

  3. STUDY OF THE PREVALENCE OF Capillaria hepatica IN HUMANS AND RODENTS IN AN URBAN AREA OF THE CITY OF PORTO VELHO, RONDNIA, BRAZIL

    PubMed Central

    da Rocha, Elierson Jos Gomes; Basano, Srgio de Almeida; de Souza, Mrcia Maria; Honda, Eduardo Resende; de Castro, Mrcio Botelho; Colodel, Edson Moleta; Silva, Jssica Carolinne Damasceno e; Barros, Lauro Prado; Rodrigues, Elisa Sousa; Camargo, Lus Marcelo Aranha

    2015-01-01

    Introduction: Hepatic capillariosis, caused by Capillaria hepatica (Calodium hepaticum) (Bancroft, 1893), Travassos, 1915 (Nematoda, Trichinelloidea, Capillariidae), is a common zoonosis in rodents but is rare in humans. Seventy-two cases in humans have been reported worldwide since the first case was described by MACARTHUR in 192417,27. This study aimed to determine the prevalence of Capillaria hepatica in humans and rodents in an urban area of Porto Velho, the capital of Rondnia, in Brazil. Methods: After conducting a census of the area, 490 residents were randomly selected, and, after signing a term of consent, provided blood samples that were screened for anti-Capillaria hepatica antibodies. Simultaneously, rats were captured to assess the prevalence of this parasite in rodents by histopathological examination in liver sections. Results: A prevalence of 1.8% was found among residents who had specific antibodies at a dilution of 1:150, indicating exposure to parasite eggs; 0.8% of the subjects also had positive titers at a dilution of 1:400, indicating true infection. The prevalence in rats was 2%. Conclusions: The prevalence of infection with this parasite among humans and rats was low. While the prevalence encountered among humans was within the limits reported in the literature, the prevalence among rodents was much lower. PMID:25651325

  4. Simulating Deforestation and Carbon Loss in Amazonia: Impacts in Brazil's Roraima State from Reconstructing Highway BR-319 (Manaus-Porto Velho)

    NASA Astrophysics Data System (ADS)

    Barni, Paulo Eduardo; Fearnside, Philip Martin; Graa, Paulo Maurcio Lima de Alencastro

    2015-02-01

    Reconstruction of Highway BR-319 (Manaus-Porto Velho) would allow for access from the "arc of deforestation" in the southern part of Brazil's Amazon region to vast blocks of forests in central and northern Amazonia. Building roads is known to be a major driver of deforestation, allowing entry of squatters, and other actors. Rather than deforestation along the highway route, here we consider the road's potential for stimulating deforestation in a separate location, approximately 550 km north of BR-319's endpoint in Manaus. Reconstructing BR-319 has great potential impact to start a new wave of migration to this remote region. The southern portion of the state of Roraima, the focus of our study, is already connected to Manaus by Highway BR-174. We modeled deforestation in southern Roraima and simulated carbon emissions between 2007 and 2030 under four scenarios. Simulations used the AGROECO model in DINAMICA-EGO software. Two scenarios were considered with reconstruction of BR-319 and two without this road connection. For each of the two possibilities regarding BR-319, simulations were developed for (1) a "conservation" (CONSERV) scenario that assumes the creation of a series of protected areas, and (2) a "business-as-usual" (BAU) scenario that assumes no additional protected areas. Results show that by 2030, with BR-319 rebuilt, deforestation carbon emissions would increase between 19 % (CONSERV) and 42 % (BAU) over and above those corresponding to no-road scenarios.

  5. Um sistema de cache preditivo para o processamento em tempo-real de grandes volumes de dados graficos

    E-print Network

    de Figueiredo, Luiz Henrique

    Um sistema de cache preditivo para o processamento em tempo-real de grandes volumes de dados gr, 225, Rio de Janeiro, Brasil Abstract. Para visualizar objetos graficos em tempo-real e necessario superar com dois tipos de problema: tempo limitado de para efetuar o processo de rendering e espa

  6. UTILIZAO DE UM MODELO DE CONTORNO ATIVO PARA EXTRAO DE ARESTAS EM IMAGENS

    E-print Network

    de Figueiredo, Luiz Henrique

    se deseja extrair, dessa forma a função de energia passa a funcionar como uma função objetivo de um mínima quando a Snake se encontre sobre as arestas da imagem. Dessa maneira o problema de extração de por Cohen. Dessa forma a Snake apresenta uma dinâmica interna que pode ser utilizada para "inflar" ou

  7. Serie de problemas de Mec^anica Geometrica Jose Natario

    E-print Network

    Natário, José

    ´icula em queda livre num potencial gravitacional (t, x, y, z) ´e uma solu¸c~ao das equa¸c~oes d2x dt2, ) ´e uma variedade pseudo-Riemanniana e c : I Q ´e uma curva C define-se a energia de c em [a, b] I c ´e um ponto cr´itico da energia. 8. Caracterize todas as geod´esicas da m´etrica de Poincar´e ds2

  8. 2 a Serie de problemas de Mecanica Geometrica Jose Natario

    E-print Network

    Natário, José

    uma part??�cula em queda livre num potencial gravitacional #(t, x, y, z) ??e uma solu?c?ao das equa ??e uma curva C # define­se a energia de c em [a, b] # I atrav??es de E = # b a 1 2 (t) > dt Mostre que c ??e uma geod??esica da conex?ao de Levi­Civita sse c ??e um ponto cr??�tico da energia. 8

  9. APROXIMACIONES EFICIENTES PARA PROBLEMAS DE VIBRACIONES EN SISTEMAS FLUIDO-ESTRUCTURA

    E-print Network

    Armentano, María Gabriela

    APROXIMACIONES EFICIENTES PARA PROBLEMAS DE VIBRACIONES EN SISTEMAS FLUIDO-ESTRUCTURA Mario Scheblea , Maria Gabriela Armentanob y Claudio Padraa aGrupo de Mec´anica Computacional, Centro At, garmenta@mate.dm.uba.ar Palabras Clave: Vibraciones. Interacci´on fluido-estructura. Adaptividad hp

  10. Scholarship Appeal Form Name: UM ID#:790-

    E-print Network

    Vonessen, Nikolaus

    Scholarship Appeal Form Name: UM ID#:790- E-Mail: Phone#: Will this be your first year attending UM? Yes No 2015/16 Grade Level: Freshman Sophomore Junior Senior I. Scholarship Information: Name of Renewable Scholarship: Full-time continuous enrollment (autumn/spring) is required for your scholarship. See

  11. UM STUDENTS HELP DEMO NOAA HURRICANE BALLOONS

    E-print Network

    Miami, University of

    balloons to the launch site. #12;WWW.RSMAS.MIAMI.EDU (Continued from page 1) SOUNDINgS IS FOR golfUM STUDENTS HELP DEMO NOAA HURRICANE BALLOONS Meteorology and Physical Oceanography students, with the launch of new hurricane balloons to be used for improving hurricane track and intensity forecasts

  12. Isomeric-to-prompt fission ratios for the uranium fission isomers 236Um and 238Um

    NASA Astrophysics Data System (ADS)

    Tischler, R.; Kleinrahm, A.; Kroth, R.; Gnther, C.

    1980-07-01

    Fission isomers in 236U and 238U have been populated in 235U(d, p)236Um, 236U(d, pn)236Um, and the 238U(d, pn)238Um reactions. Time spectra of fission fragments with respect to the cyclotron beam pulses have been measured. From these measurements the isomeric-to-prompt fission ratios are derived for deuteron energies ranging from 17 to 25 MeV. The isomeric-to-prompt ratios show a distinct maximum around 20 MeV for the (d, pn) reactions, whereas a monotonic decrease is observed for the 235U(d, p)236Um reaction. NUCLEAR REACTIONS, FISSION 235U(d, pf) and 236,238U(d, pnf), measured delayed fission fragment time spectra, deduced isomeric-to-prompt fission ratios.

  13. Um Guia de Estudo 4 a Edicao

    E-print Network

    Cabral, Marco

    a grande dificuldade dos alunos compreende­ rem os conceitos principais: Classes de Equival??encia, Anel define­se Im(f) = {b # B; b = f(a) com a # A}. Defini?c?ao: IMAGEM INVERSA -- Denota­se e define­se: f -1 (C) = {a # A; f(a) # C} . A imagem inversa ??e um subconjunto do dom??�nio. Obs: N?ao confundir com fun

  14. The rich 6 to 9 um spectrum of interstellar PAHs

    E-print Network

    E. Peeters; S. Hony; C. Van Kerckhoven; A. G. G. M. Tielens; L. J. Allamandola; D. M. Hudgins; C. W. Bauschlicher

    2002-05-23

    Here, we present 6-9 um spectra of a sample of RNe, HII regions, YSOs, evolved stars and galaxies that show strong unidentified infrared bands, obtained with the ISO-SWS. The IR emission features show pronounced variations. 1) The 6.2 um feature shifts and clearly shows profile variations. 2) The 7.7 um complex is comprised of at least two subpeaks peaking at 7.6 and one longwards of 7.7 um. In some cases the main peak can apparently shift up to 8 um. Two sources do not exhibit a 7.7 um complex but instead show a broad emission feature at 8.22 um. 3) The 8.6 um feature has a symmetric profile in all sources and some sources exhibit this band at slightly longer wavelengths. For the 6.2, 7.7 and 8.6 um features, the sources have been classified independently based on their profile and peak position. The classes derived for these features are directly linked with each other. Furthermore, the observed 6--9 um spectrum depends on the type of object. We attribute the observed 6.2 um profile and peak position to the combined effect of a PAH family and anharmonicity with pure PAHs representing the 6.3 um component and substituted/complexed PAHs representing the 6.2 um component. The 7.6 um component is well reproduced by both pure and substituted/complexed PAHs but the 7.8 um component remains an enigma. In addition, the exact identification of the 8.22 um feature remains unknown. The observed variations in the characteristics of the IR emission bands are linked to the local physical conditions. Possible formation and evolution processes that may influence the interstellar PAH class are highlighted.

  15. Problema comunic?rii ?tiin?ifice: de ce este necesar accesul liber (Open Access)? O perspectiv? transatlantic?

    E-print Network

    Greenberg, Marc L.; Emmett, Ada

    2011-01-01

    =UTF-8 83punctul pe i Marc L. Greenberg Ada Emmett Problema comunic?rii ?tiin?ifice: de ce este necesar accesul liber (Open Access)? O perspectiv? transatlantic? Rezumat Articolul dore?te s? atrag? aten?ia asupra tendin?elor spre Accesul Liber... (Open Access), oferind exemple rezultate din experien?a acumulat? la Universi- tatea din Kansas care a pornit, acum c?iva ani, pe calea implement?rii unei politici de acces liber la comunicarea ?tiin?ific?. Articolul subliniaz? aspecte pe care, n...

  16. ARTIGO INTERNET Um milho de euros para estudar buracos negros

    E-print Network

    Instituto de Sistemas e Robotica

    NewsSearch ARTIGO INTERNET Um milho de euros para estudar buracos negros in http estudar buracos negros Vtor Cardoso , investigador do Departamento de Fsica do Instituto Superior milho de euros, para estudar a coliso de buracos negros - um processo fundamental em Relatividade Geral

  17. "Uh" and "Um" Revisited: Are They Interjections for Signaling Delay?

    ERIC Educational Resources Information Center

    O'Connell, Daniel C.; Kowal, Sabine

    2005-01-01

    Clark and Fox Tree (2002) have presented empirical evidence, based primarily on the London-Lund corpus (LL; Svartvik & Quirk, 1980), that the fillers "uh" and "um" are conventional English words that signal a speaker's intention to initiate a minor and a major delay, respectively. We present here empirical analyses of "uh" and "um" and of silent

  18. Um Primeiro Curso sobre Teoria Ergdica com Aplicaes

    E-print Network

    Moreira, Carlos Gustavo

    Um Primeiro Curso sobre Teoria Ergdica com Aplicaes #12;#12;Publicaes Matemticas Um Primeiro Curso sobre Teoria Ergdica com Aplicaes Krerley Oliveira UFAL impa 25o Colquio Brasileiro de Software Livre/Gratuito - Alejandro C. Frery e Francisco Cribari-Neto Espaos de Hardy no Disco Unitrio

  19. Traccia di soluzione della II prova parziale 12/06/15 L'energia cinetica `e identica al problema 23 delle dispense, svolto anche in aula: due masse m/2 al

    E-print Network

    Benettin, Giancarlo

    Traccia di soluzione della II prova parziale ­ 12/06/15 Problema I L'energia cinetica `e identica al problema 23 delle dispense, svolto anche in aula: due masse m/2 al posto di un'unica massa m. L'energia infinit`a di punti, tutti instabili). Problema II L'energia potenziale `e V (s, ) = 1 2 ks2 + 1 2 k (s + l

  20. Commercial Motor Vehicle Roadside Technology Consor um (CMVRTC)

    E-print Network

    Commercial Motor Vehicle Roadside Technology Consor um (CMVRTC) The Commercial Motor Vehicle, evaluation, and showcase innovative commercial motor vehicle (CMV) safety technologies under real; Support the development of functional specifications for a Smart Infrared Inspection System (SIRIS

  1. Priorities, Themes, & Strategic Objectives President Wolfe's UM System Priorities

    E-print Network

    Missouri-Rolla, University of

    Priorities, Themes, & Strategic Objectives President Wolfe's UM System Priorities I. Strategic, stimulating Missouri's economy with the creation of new businesses and jobs. VI. Effective Communication of our Value and Importance: Improve communication outreach by relaying how the university reaches every

  2. Uh and um revisited: are they interjections for signaling delay?

    PubMed

    O'Connell, Daniel C; Kowal, Sabine

    2005-11-01

    Clark and Fox Tree (2002) have presented empirical evidence, based primarily on the London-Lund corpus (LL; Svartvik & Quirk, 1980), that the fillers uh and um are conventional English words that signal a speaker's intention to initiate a minor and a major delay, respectively. We present here empirical analyses of uh and um and of silent pauses (delays) immediately following them in six media interviews of Hillary Clinton. Our evidence indicates that uh and um cannot serve as signals of upcoming delay, let alone signal it differentially: In most cases, both uh and um were not followed by a silent pause, that is, there was no delay at all; the silent pauses that did occur after um were too short to be counted as major delays; finally, the distributions of durations of silent pauses after uh and um were almost entirely overlapping and could therefore not have served as reliable predictors for a listener. The discrepancies between Clark and Fox Tree's findings and ours are largely a consequence of the fact that their LL analyses reflect the perceptions of professional coders, whereas our data were analyzed by means of acoustic measurements with the PRAAT software (www.praat.org). A comparison of our findings with those of O'Connell, Kowal, and Ageneau (2005) did not corroborate the hypothesis of Clark and Fox Tree that uh and um are interjections: Fillers occurred typically in initial, interjections in medial positions; fillers did not constitute an integral turn by themselves, whereas interjections did; fillers never initiated cited speech, whereas interjections did; and fillers did not signal emotion, whereas interjections did. Clark and Fox Tree's analyses were embedded within a theory of ideal delivery that we find inappropriate for the explication of these phenomena. PMID:16341914

  3. Computadors Problemas de ARP

    E-print Network

    hace un ping del PC1 al S2. Sabiendo que todas las tablas ARP de los hosts y de los routers estn ping complete por lo menos dos recorridos de ida y vuelta. Usar una tabla del tipo: Eth ARP IP ICMP Tabla ARP PC1 IP MAC b. Se para el ping anterior pero no se borran las tablas ARP y se hace un ping de

  4. Problemas para dormir

    Cancer.gov

    Dormir bien es importante para su salud fsica y mental. Un buen sueo en la noche no solo le ayuda a pensar claramente, tambin le baja su presin arterial, ayuda su apetito y fortalece su sistema inmunitario.

  5. Landscape Specification Resizing Leandro Cruz, Luiz Velho and Djalma Lucio

    E-print Network

    de Figueiredo, Luiz Henrique

    of the landscape. Figure 2b and 2c illustrates this situation. On the other hand, a content-aware shrinking obtains of the objects. It is based on a removal or insertion of paths in the grid created over the scene space using in the pixel space. This technique is an adaptation of the Seam Carving for the context of vector landscapes

  6. Luiz Velho CIBERCULTURA 04 1 A Panoramic View

    E-print Network

    de Figueiredo, Luiz Henrique

    -virtual devices Can be used like these devices Augmented reality Virtual reality Familiar interaction invalid operations No motion feedback required Simple and intuitive interaction Easy determination

  7. UM05 -Personalization for e-Health Handheld computing

    E-print Network

    Grasso, Floriana

    , Roberto Valenti Universit Campus Bio-Medico, Rome #12;UM05 - Personalization for e-Health Contents Design. Currently it includes the Faculty of Medicine and the Faculty of Engineering. The University Hospital (15 departments - 124 beds) is close to the didactic seat it includes an out patients Clinic, a day-hospital unit

  8. Universal Monitor (UM) for OTEC compact heat exchangers

    SciTech Connect

    Kuzay, T.M.

    1981-09-01

    Universal Monitor (UM), is a device-independent concept to measure, with precision, the initiation and progression of fouling in any given OTEC Compact Heat Exchanger model with or without the application of countermeasures. Design description and supporting analyses for the Universal Monitor for OTEC Compact Heat Exchangers are presented.

  9. RESEARCH ARTICLE QuorUM: An Error Corrector for Illumina

    E-print Network

    Yorke, James

    RESEARCH ARTICLE QuorUM: An Error Corrector for Illumina Reads Guillaume Marais*, James A. Yorke@umd.edu (GM) Abstract Motivation Illumina Sequencing data can provide high coverage of a genome by relatively coverage Illumina data on average has an error in some read at every base in the genome. These errors make

  10. UM-AR-GPS-ROVER AUGMENTED REALITY PLATFORM VISUALIZATION OF

    E-print Network

    Kamat, Vineet R.

    UM-AR-GPS-ROVER AUGMENTED REALITY PLATFORM VISUALIZATION OF CONSTRUCTION GRAPHICS IN OUTDOOR AUGMENTED REALITY By Amir H. Behzadan and Vineet R. Kamat UMCEE Report No. 05-09 Civil and Environmental the project objective and flows to the current state-of-the-art in Augmented Reality followed by a number

  11. The International Space Station Urine Monitoring System (UMS)

    NASA Technical Reports Server (NTRS)

    Feeback, Daniel L.; Cibuzar, Branelle R.; Milstead, Jeffery R.; Pietrzyk,, Robert A.; Clark, Mark S.F.

    2009-01-01

    A device capable of making in-flight volume measurements of single void urine samples, the Urine Monitoring System (UMS), was developed and flown on seven U.S. Space Shuttle missions. This device provided volume data for each urine void from multiple crewmembers and allowed samples of each to be taken and returned to Earth for post-flight analysis. There were a number of design flaws in the original instrument including the presence of liquid carry-over producing invalid "actual" micturition volumes and cross-contamination between successive users from residual urine in "dead" spots". Additionally, high or low volume voids could not be accurately measured, the on-orbit calibration and nominal use sequence was time intensive, and the unit had to be returned and disassembled to retrieve the volume data. These problems have been resolved in a new version, the International Space Station (ISS) UMS, that has been designed to provide real-time in-flight volume data with accuracy and precision equivalent to measurements made on Earth and the ability to provide urine samples that are unadulterated by the device. Originally conceived to be interfaced with a U.S.-built Waste Collection System (WCS), the unit now has been modified to interface with the Russian-supplied Sanitary Hygiene Device (ASY). The ISS UMS provides significant advantages over the current method of collecting urine samples into Urine Collection Devices (UCDs), from which samples are removed and returned to Earth for analyses. A significant future advantage of the UMS is that it can provide an interface to analytical instrumentation that will allow real-time measurement of urine bioanalytes allowing monitoring of crewmember health status during flight and the ability to provide medical interventions based on the results of these measurements. Currently, the ISS UMS is scheduled to launch along with Node-3 on STS-130 (20A) in December 2009. UMS will be installed and scientific/functional verification completed prior to placing the instrument into operation. Samples collected during the verification sequence will be returned for analyses on STS-131 (19A) currently scheduled for launch in March 2010. The presence of a UMS on ISS will provide the capability to conduct additional collaborative human life science investigations among the ISS International Partners.

  12. Um Guia de Estudo Marco Aurelio Palumbo Cabral

    E-print Network

    Cabral, Marco

    compreende- rem os conceitos principais: Classes de Equival^encia, Anel Quociente, Teorema do Homomorfismo}. Defini¸c~ao: IMAGEM INVERSA ­ Denota-se e define-se: f-1 (C) = {a A; f(a) C} . A imagem inversa ´e um subconjunto do dom´inio. Obs: N~ao confundir com fun¸c~ao inversa, que associa ele- mentos de B a A. A imagem

  13. STS-40 Exp. No. 192 urine monitoring system (UMS) on OV-102's middeck

    NASA Technical Reports Server (NTRS)

    1991-01-01

    STS-40 Experiment No. 192, Fluid-Electrolyte Regulation During Space Flight, urine monitoring system (UMS) is set up on the middeck of Columbia, Orbiter Vehicle (OV) 102, at the side hatch. The UMS is attached to OV-102's waste collection system (WCS). The urine specimen tray with sample tubes appears to the right of the UMS equipment.

  14. On Um -numbers with small transcendence measure Kamil Alnia cik, Yusuf Avci (Istanbul)

    E-print Network

    Bugeaud, Yann

    ) The purpose of the present note is to present a new, e#11;ective method for constructing real Um -numbers #24 Proposition 1 below is e#11;ective. It is expected that there exist Um -numbers #24; with w #3; n (#24;) = nOn Um -numbers with small transcendence measure Kamil Alnia#24;cik, Yusuf Avci (Istanbul) & Yann

  15. UM Computer Science 2014-2015 Health History Form & Permission to Receive First Aid

    E-print Network

    Chu, Xi

    UM Computer Science 2014-2015 Health History Form & Permission to Receive First Aid Name of an accident while participating in the UM Computer Science program. Therefore, before you fill out this form permission for any representatives of the UM Computer Science program or The University of Montana to render

  16. UM Computer Science 2014-2015 Parent/Guardian Consent & Contact Form

    E-print Network

    Chu, Xi

    UM Computer Science 2014-2015 Parent/Guardian Consent & Contact Form Print Child's Name: __________ I/we give our son/daughter permission to participate in the UM Computer Science workshop to the provision of any necessary emergency treatment to my son/daughter during the program by UM Computer Science

  17. Usina do Trabalho do Ator: um teatro canibal

    E-print Network

    Icle, Gilberto

    1999-10-01

    , tomam os seus corpos e, juntos, danam uma dana dramtica. Contam a histria de amor de um homem e de uma mulher. O casal enamorado surpreendido por Anhang-Pit, demnio formado pelo resto da natureza, que faz cair a noite despertando a cobra de... fogo conhecida como Boitat. A grande cobra devora os olhos da mulher e a dor do seu amado comove a Salamanca: uma Princesa Moura transformada em Lagartixa. A Salamanca revela ao homem as tres provas mgicas que faro nascer o dia e cessar todos os...

  18. STAR CLUSTER COMPLEXES AND THE HOST GALAXY IN THREE H II GALAXIES: Mrk 36, UM 408, AND UM 461

    SciTech Connect

    Lagos, P.; Telles, E.; Nigoche-Netro, A.

    2011-11-15

    We present a stellar population study of three H II galaxies (Mrk 36, UM 408, and UM 461) based on the analysis of new ground-based high-resolution near-infrared J, H, and K{sub p} broadband and Br{gamma} narrowband images obtained with Gemini/NIRI. We identify and determine the relative ages and masses of the elementary star clusters and/or star cluster complexes of the starburst regions in each of these galaxies by comparing the colors with evolutionary synthesis models that include the contribution of stellar continuum, nebular continuum, and emission lines. We found that the current star cluster formation efficiency in our sample of low-luminosity H II galaxies is {approx}10%. Therefore, most of the recent star formation is not in massive clusters. Our findings seem to indicate that the star formation mode in our sample of galaxies is clumpy, and that these complexes are formed by a few massive star clusters with masses {approx}>10{sup 4} M{sub Sun }. The age distribution of these star cluster complexes shows that the current burst started recently and likely simultaneously over short timescales in their host galaxies, triggered by some internal mechanism. Finally, the fraction of the total cluster mass with respect to the low surface brightness (or host galaxy) mass, considering our complete range in ages, is less than 1%.

  19. ComFiM -Um Jogo Colaborativo para Estimular a Comunicao de Crianas com Autismo

    E-print Network

    Barbosa, Alberto

    ComFiM - Um Jogo Colaborativo para Estimular a Comunicação de Crianças com Autismo Paula Ceccon desenvolvimento e a avalia¸c~ao de um jogo colaborativo chamado ComFiM, para interfa- ces m´oveis tang´iveis. O jogo foi desenvolvido com base nos requisitos de um grupo de crian¸cas com autismo, visando estimular

  20. Recovery Act: Novel Kerf-Free PV Wafering that provides a low-cost approach to generate wafers from 150um to 50um in thickness

    SciTech Connect

    Fong, Theodore E.

    2013-05-06

    The technical paper summarizes the project work conducted in the development of Kerf-Free silicon wafering equipment for silicon solar wafering. This new PolyMax technology uses a two step process of implantation and cleaving to exfoliate 50um to 120um wafers with thicknesses ranging from 50um to 120um from a 125mm or 156mm pseudo-squared silicon ingot. No kerf is generated using this method of wafering. This method of wafering contrasts with the current method of making silicon solar wafers using the industry standard wire saw equipment. The report summarizes the activity conducted by Silicon Genesis Corporation in working to develop this technology further and to define the roadmap specifications for the first commercial proto-type equipment for high volume solar wafer manufacturing using the PolyMax technology.

  1. F589 -QUINTA LISTA DE EXERCICIOS 1. Mostre, para um atomo de Thompson, que um eletron que esta em movimento em

    E-print Network

    de Aguiar, Marcus A. M.

    dada por = 2|E|/hn onde E e a energia total do eletron. 6. (a)Mostre que no estado fundamental de umc~ao do eletron, (i) a energia cinetica, (j) a energia potencial e (k) a energia total? Como as quantias (b) e (k) variam com os numeros qu^anticos? 8. Quanta energia e necessaria para remover um el

  2. Fu-Hao Chen 12/22/2014 Fabrication of small apertures (diameter of 10~30um) on 25 um-thick Teflon using

    E-print Network

    Movileanu, Liviu

    (Olympus IX51), a tip holder, a plastic film holder, and a tip. Micro tips are purchased from Signatone holder, loose the screw, put the 3.5 um tip in the groove, and screw at the middle of the tip. 2. Turn a rectangular Teflon film, whose dimension is 2.8 cm x 2.8 cm x 25 um. 8. Take the plastic film holder, loose

  3. F 415 Mec^anica Geral II Lista 3 1. Problems 10.1, 10.2, 10.8, 10.9, 10.10, and 10.12 Marion, 5.ed.: problemas para o teste.

    E-print Network

    de Aguiar, Marcus A. M.

    .ed.: problemas para o teste. 2. Problem 10.15 Marion, 5ed. 3. A particle moves in the xyplane under. Find the possible motions of the particle by solving the equations of motion in this coordinate system to a weak uniform magnetic field B, the effect of B is to make the ellipse precess slowly - an effect known

  4. September 2012 Help Sheet: Using "UM Jobs" to Hire Tenure-Track Faculty

    E-print Network

    Chu, Xi

    September 2012 Help Sheet: Using "UM Jobs" to Hire Tenure-Track Faculty Human Resource Services has. Prepare two versions of the job announcement. The first follows a standardized format and is posted on the UM Jobs website. An example can be found on the HR Recruitment page: http

  5. Um framework para renderizaes foto-realistas de cenas com realidade aumentada

    E-print Network

    de Figueiredo, Luiz Henrique

    CLE 2011 Um framework para renderizaes foto-realistas de cenas com realidade aumentada Aldo Ren aumentada foto-realista conseguir um resultado foto realista a traves de uma nica renderizao direta.elsevier.nl/locate/entcs #12;1 Introduo Para a industria do cinema e outras que dependem de imagens foto-realistas,

  6. No vamos ser devorados por um buraco negro p26/27 Pode estar descansado

    E-print Network

    Instituto de Sistemas e Robotica

    No vamos ser devorados por um buraco negro p26/27 #12;Pode estar descansado: no vamos ser devorados -'buraco negroTrs cientistas em Lisboa quiseram ver se todos os astros acabam um dia em buracos negros, objectos to densos e macios que atraem tudo o que est volta. Para tal, fizeram clculos num

  7. Armazenar energia mais rapidamente O armazenamento de energia um desafio tecnolgico ainda por vencer. Os supercondensadores

    E-print Network

    Instituto de Sistemas e Robotica

    Armazenar energia mais rapidamente O armazenamento de energia um desafio tecnolgico ainda por: armazena muita energia e de forma muito rpida. Alm de ser fabricado atravs de um processo sim- ples, com de supercondensadores com elevada densidade de energia e potncia, o que vem resolver a desvantagem

  8. Paramecium swimming in capillary tube Saikat Jana, Soong Ho Um, and Sunghwan Jung

    E-print Network

    Jung, Sunghwan "Sunny"

    velocity fields due to swimming algae Phys. Fluids 23, 091112 (2011) Extensibility enables locomotion underParamecium swimming in capillary tube Saikat Jana, Soong Ho Um, and Sunghwan Jung Citation: Phys swimming in capillary tube Saikat Jana,1 Soong Ho Um,2 and Sunghwan Jung1 1 Department of Engineering

  9. Common Correlations between 60, 100 and 140 um Intensities in the Galactic Plane and Magellanic Clouds

    E-print Network

    Yasunori Hibi; Hiroshi Shibai; Mitsunobu Kawada; Takafumi Ootsubo; Hiroyuki Hirashita

    2006-04-11

    We investigate the far-infrared SED of the Galaxy and the Magellanic Clouds by using the COBE (COsmic Background Explorer) / DIRBE (Diffuse InfraRed Background Experiment) ZSMA (Zodi - Subtracted Mission Average) maps at wavelengths of 60 um, 100 um and 140 um. We analyze three regions: the Galactic plane region with the Galactic latitude |b|much smaller in the far-infrared than in the visible, we may observe cumulative far-infrared radiation from regions with various interstellar radiation field (IRSF) in a line of sight. As consequence of considering such an effect, we find a common far-infrared color correlation between the 140 - 100 um and 60 - 100 um intensity ratios in all the three galaxies. Although this color correlation cannot be explained by any existing model, it fits very well the far-infrared color of nearby star forming galaxies.

  10. Problema mundial de la crtica

    E-print Network

    Potenze, Jaime

    1984-04-01

    de Frank Sinatra, que cobr una fortuna en dlares por venir a Buenos Aires . . . pero llen el Luna Park, que es el estadio ms grande de Buenos Aires. Por otro lado (los crticos no cultivamos la antipata pero a veces no tenemos ms remedio que...

  11. UM,CP Dive Manual Exam Page 1 Rev. 3/15/2012 Diving Safety Diving Manual Exam

    E-print Network

    Boynton, Walter R.

    UM,CP Dive Manual Exam Page 1 Rev. 3/15/2012 Diving Safety Diving Manual Exam 1. AAUS records of dives equipment inspection and testing records all of the above #12;UM,CP Dive Manual Exam Page 2 Rev. 3/15/2012 8. Before conducting any diving operation under the auspices of the UM,CP

  12. 2 um Narrow-Band Imaging of the Sagittarius D H II region

    E-print Network

    R. D. Blum; A. Damineli

    1998-09-27

    We present 2 um narrow-band images of the core H II region in the Galactic star forming region Sagittarius D. The emission-line images are centered on 2.17 um (Brgamma) and 2.06 um (He I). The H II region appears at the edge of a well defined dark cloud, and the morphology suggests a blister geometry as pointed out in earlier radio continuum work. There is a deficit of stars in general in front of the associated dark cloud indicating the H II region is located in-between the Galactic center and the sun. The lesser spatial extent of the He I line emission relative to Brgamma places the effective temperature of the ionizing radiation field below 40,000 K. The He I 2.06 um to Brgamma ratio and Brgamma / far infrared dust emission put Teff at about 36,500 K to 40,000 K as derived from ionization models.

  13. 2.2um BSI CMOS image sensor with two layer photo-detector

    NASA Astrophysics Data System (ADS)

    Sasaki, H.; Mochizuki, A.; Sugiura, Y.; Hasumi, R.; Eda, K.; Egawa, Y.; Yamashita, H.; Honda, K.; Ohguro, T.; Momose, H. S.; Ootani, H.; Toyoshima, Y.; Asami, T.

    2015-03-01

    Back Side Illumination (BSI) CMOS image sensors with two-layer photo detectors (2LPDs) have been fabricated and evaluated. The test pixel array has green pixels (2.2um x 2.2um) and a magenta pixel (2.2um x 4.4um). The green pixel has a single-layer photo detector (1LPD). The magenta pixel has a 2LPD and a vertical charge transfer (VCT) path to contact a back side photo detector. The 2LPD and the VCT were implemented by high-energy ion implantation from the circuit side. Measured spectral response curves from the 2LPDs fitted well with those estimated based on light-absorption theory for Silicon detectors. Our measurement results show that the keys to realize the 2LPD in BSI are; (1) the reduction of crosstalk to the VCT from adjacent pixels and (2) controlling the backside photo detector thickness variance to reduce color signal variations.

  14. Die Leopold-Franzens-Universitt Innsbruck trauert um Ass.-Prof. Mag. Dr. Peter Mayrhofer

    E-print Network

    Nawratil, Georg

    Die Leopold-Franzens-Universität Innsbruck trauert um Ass.-Prof. Mag. Dr. Peter Mayrhofer Hilfsbereitschaft und nicht zuletzt auch seinen Humor schätzten. Die Leopold-Franzens-Universität betrauert den

  15. Um plano de rev italizao e propostas para travar a "degradao" do Areeiro

    E-print Network

    Instituto de Sistemas e Robotica

    definido "um plano de re- vitalizao" para o territrio da an- tiga freguesia de So Joo de Deus. O pelo territrio da antiga freguesia de So Joo de Deus, que se fundiu com a do Alto do Pina, ganhando

  16. Fu-Hao Chen 12/22/2014 Fabrication of small apertures (diameter of 30~40um) on 25 um-thick Teflon using

    E-print Network

    Movileanu, Liviu

    electrodes are aligned into a straight line. 3. Loose the two screws which fix the two electrodes, so the two of the two arms are equal. After the length is correct, tighten the two screws to fix the electrodes. 5. Take um. 7. Squeeze the rectangular Teflon film in the cartridge holder, which are two plastic plates

  17. 31.5um imaging observations of AGN using SOFIA/FORCAST

    NASA Astrophysics Data System (ADS)

    Fuller, Lindsay; Lopez-Rodriguez, Enrique; Packham, Christopher C.; Los Piratas Team

    2016-01-01

    The unified model of active galactic nuclei (AGN) requires a toroidal region of optically and geometrically thick dust obscuring a central engine, accounting for various observed spectral features. Our aim is to investigate the overall torus properties to obtain analytical results for its physical parameters. We present 31.5um photometric observations of 12 nearby Seyfert galaxies from the 2.5m SOFIA telescope using the FORCAST camera. We used Clumpy torus models and a Bayesian approach to fit the IR (1.2-31.5um) nuclear SEDs and high angular resolution mid-IR (8-13um) spectroscopy. We found that the turnover of the torus emission does not occur at wavelengths <31.5um, which we interpret as a lower-limit for the peak torus emission. Including the 31.5um nuclear flux 1) reduces the dispersion of Clumpy torus models at wavelengths >30um, which better constrains the model parameters, 2) generally decreases the radial extent of the torus. We find torus radii ranging from ~1 - 8.5pc, with an average radius of 2.6pc, which is consistent with interferometric and high-spatial resolution observations.

  18. Spitzer Mid-Infrared Spectroscopy of 70um-Selected Distant Luminous Infrared Galaxies

    E-print Network

    Kate Brand; Dan W. Weedman; Vandana Desai; Emeric Le Floc'h; Lee Armus; Arjun Dey; Jim R. Houck; Buell T. Jannuzi; Howard A. Smith; B. T. Soifer

    2007-09-20

    We present mid-infrared spectroscopy obtained with the Spitzer Space Telescope of a sample of 11 optically faint, infrared luminous galaxies selected from a Spitzer MIPS 70um imaging survey of the NDWFS Bootes field. These are the first Spitzer IRS spectra presented of distant 70um-selected sources. All the galaxies lie at redshifts 0.3um silicate absorption features and no significant PAH emission features (6.2um equivalent widths < 0.03um). The large infrared luminosities and low f70/f24 flux density ratios suggests that these sources have AGN as the dominant origin of their large mid-infrared luminosities, although deeply embedded but luminous starbursts cannot be ruled out. If the absorbed sources are AGN-dominated, a significant fraction of all far-infrared bright, optically faint sources may be dominated by AGN.

  19. 1. Espacos de Baire Definic~ao e Proposic~ao 1.1. Um espaco topologico X e um espaco de Baire sse

    E-print Network

    Santos, João

    . Mostremos que U An = . U A1 = logo, como X ´e regular existe uma bola B1 tal que ¯B1 U A1. Podemos escolher B1 tal que diam B1 tal que ¯B2 B1 A2 e diam B2 aberto A X tal que o conjunto {f(x) : x A, I} ´e limitado. Demonstra¸c~ao. Fixemos um ponto y Y

  20. UM-PRS: An implementation of the procedural reasoning system for multirobot applications

    NASA Technical Reports Server (NTRS)

    Lee, Jaeho; Huber, Marcus J.; Durfee, Edmund H.; Kenny, Patrick G.

    1994-01-01

    The Procedural Reasoning System (PRS) is used in applications where predetermined situations might arise. The UM-PRS provides a reasoning system that represents robotic applications even in unpredictable domains, such as the robotic reconnaissance task domain outlined here. UM-PRS incorporates a changing context, rather than relying solely on a prearranged plan. The UM-PRS here provides representation important in the reasoning and interface between a mission plan and the executable map of an outdoor vehicle that changes its behavior based on what it comes in contact with in its environment. PRS is thus used in the dynamic control of such a vehicle, providing the basis for coordinating the joint task of multiple robotic vehicles by the their individual observations and representation.

  1. A Func~ao Zeta de um Corpo de Func~oes e o Teorema de Hasse-Weil

    E-print Network

    Torres, Fernando

    dependendo exclusivamente do g^enero g de F/Fq e de q. Este sera o Teorema da Cota de Hasse-Weil. A func~ao substancial provando para o caso particular de um corpo de func~oes com g^enero um, isto e, para curvas el propriedades. Em todo texto F denota um corpo de func~oes algebricas de g^enero g cujo corpo de constantes 1

  2. Gerhard Fischer 1 UM'99, June 1999 Wisdom is not the product of schooling

    E-print Network

    Fischer, Gerhard

    - claim: in many cases, it is not the preferred mode of communication claims (Lucy Suchman, 1987 make use of linguistic, nonverbal, and inferential resources in finding the intelligibility of actions communication channel explicit communication channel #12;Gerhard Fischer 8 UM'99, June 1999 Knowledge

  3. Lamper, Karen Teresa From: UM Research Listserv on behalf of Lamper,

    E-print Network

    Shyu, Mei-Ling

    : Internal Competition for NIOSH, Occupational Safety and Health Education and Research Centers (T42): UM Institute for Occupational Safety and Health (NIOSH), Occupational Safety and Health Education and Research for Occupational Safety and Health (NIOSH), Centers for Disease Control and Prevention (CDC), invites grant

  4. 532. Jahrgang DezemberInhalt Nr. 5 rund um die Kugel

    E-print Network

    Schubart, Christoph

    532. Jahrgang DezemberInhalt Nr. 5 rund um die Kugel siehe Seite 2 2007R e g e n s b u r g e r U-Fachexkursion 10 Kooperationen 11 aus der Forschung 13 Die UNO im Blick 14 Lebensraum Universitt 15 Uni Regensburg Telegramm Jubilums-Ausstellung DieAusstellung "40 Jahre Forschung und Lehre an der Universitt

  5. Automating the Hunt for Volcanoes on Venus , U.M. Fayyad

    E-print Network

    Smyth, Padhraic

    Automating the Hunt for Volcanoes on Venus M.C. Burl ¢¡ , U.M. Fayyad ¡ , P. Perona , P. Smyth in the Magellan SAR database of Venus. Training for the specific volcano-detection task is obtained% of the surface of Venus with synthetic aperture radar (SAR), has provided planetaryscientists witha virtual

  6. Directions to U-M Occupational Health Services (3rd floor, Med Inn Building)

    E-print Network

    Kamat, Vineet R.

    Directions to U-M Occupational Health Services (3rd floor, Med Inn Building) C380 Med Inn Building a space designated for Occupational Health parking. FROM CENTRAL CAMPUS Head east on South University.1 a space designated for Occupational Health parking. FROM DEARBORN CAMPUS Take Southfield Freeway South

  7. 2.1 um CW Raman Laser in GeO2 Fiber

    E-print Network

    Cumberland, B A; Medvedkov, O I; Popov, S V; Taylor, J R; Vasilev, S A

    2007-01-01

    We report on 33 % efficient generation of the first Stokes in a high concentration GeO2 fiber Raman laser pumped by a 22 W Thulium doped fiber laser. An output power of 4.6 W at 2.105 um is demonstrated.

  8. Use of "um" in the Deceptive Speech of a Convicted Murderer

    ERIC Educational Resources Information Center

    Villar, Gina; Arciuli, Joanne; Mallard, David

    2012-01-01

    Previous studies have demonstrated a link between language behaviors and deception; however, questions remain about the role of specific linguistic cues, especially in real-life high-stakes lies. This study investigated use of the so-called filler, "um," in externally verifiable truthful versus deceptive speech of a convicted murderer. The data

  9. Die Taufliege (Drosophila melanogaster) steht den Forschern um Bill Hansson in der Geruchsforschung Modell.

    E-print Network

    Falge, Eva

    Die Taufliege (Drosophila melanogaster) steht den Forschern um Bill Hansson in der Geruchsforschung Untersuchungsobjekt ist natrlich kein Zufall: ,,Kein Tier gibt uns so viele Mglichkeiten wie Drosophila", sagt Riechen bei Drosophila als Ganzes ver- stehen", sagt Hansson mit leicht schwe- dischem Akzent, also den

  10. Novas estratgias comunicativas como fator de qualidade na interao de surdos em um sistema organizacional

    E-print Network

    Barbosa, Alberto

    122 Novas estratgias comunicativas como fator de qualidade na interao de surdos em um sistema formulrio web e verificar se o uso de novas estratgias comunicativas melhora a interao dos surdos. Foram (MAC), uma com a interface original do sistema, e outra com o uso de novas estratgias comunicativas

  11. Widefield Microwave Imaging in Alkali Vapor Cells with sub-100 um Resolution

    E-print Network

    Horsley, Andrew; Treutlein, Philipp

    2015-01-01

    We report on widefield microwave vector field imaging with sub um resolution using a microfabricated alkali vapor cell. The setup can additionally image dc magnetic fields, and can be configured to image microwave electric fields. Our camera-based widefield imaging system records 2D images with a 6x6 mm2 field of view at a rate of 10 Hz. It provides up to 50 um spatial resolution, and allows imaging of fields as close as 150 um above structures, through the use of thin external cell walls. This is crucial in allowing us to take practical advantage of the high spatial resolution, as feature sizes in near-fields are on the order of the distance from their source, and represents an order of magnitude improvement in surface-feature resolution compared to previous vapor cell experiments. We present microwave and dc magnetic field images above a selection of devices, demonstrating a microwave sensitivity of 1.4 uT/sqrt-Hz per 50x50x140 um3 voxel, at present limited by the speed of our camera system. Since we image ...

  12. 1/4 CBEB 2008 CITOMETRIA PTICO-MAGNTICA DE ROTAO: EXEMPLO DE UM

    E-print Network

    Alencar, Adriano Mesquita

    . Palavras-chave: Citometria ptico-magntica de oscilao, reologia celular, mecnica celular, viscoelasticidade. Introduo O esqueleto celular formado por uma rede de fibras de actina que determina do esqueleto celular [8]. Nesse mtodo, um sistema de aquisio/processamento de imagens integrado

  13. Del Rio, Karen T From: UM Research Listserv on behalf of Del Rio,

    E-print Network

    Shyu, Mei-Ling

    -L@LISTSERV.MIAMI.EDU Subject: Internal Competition for NEA, ART WORKS: UM Deadline 4/7/15 The University's internal deadline for the limited submission competition for the National Endowment for the Arts (NEA), Art Works is 4/7/15. If you are interested, please read on for details. Program Announcement: http://arts

  14. DOKBOT: UM AVATAR SEMI-AUT^ONOMO PARA APLICAC~OES TELE IMERSIVAS Kayran G. R. S. Domingos

    E-print Network

    Chaimowicz, Luiz

    DOKBOT: UM AVATAR SEMI-AUT^ONOMO PARA APLICAC~OES TELE IMERSIVAS Kayran G. R. S. Domingos , Ot avatar. O sistema desenvolvido e semi-aut^onomo e e tele-operado por um usuario remotamente localizado. Para melhor percepc~ao do ambiente remoto, o avatar envia ao usuario audio e video streams

  15. Convertendo um Documento do Word (doc/docx) para Se voc possuir Microsoft Office Word 2007 ou 2010

    E-print Network

    Paraná, Universidade Federal do

    Convertendo um Documento do Word (doc/docx) para PDF. Se você possuir Microsoft Office Word 2007 ou arquivo já estará pronto para ser utilizado. Se você possuir Microsoft Office Word 97 ou 2003: Primeiro 2010: Crie ou abra um Documento qualquer de Word, vá no menu e clique em "salvar como" (se preferir

  16. Observations of the new gravitational lens system UM 673 = Q 0142-100

    NASA Astrophysics Data System (ADS)

    Surdej, J.; Magain, P.; Swings, J.-P.; Borgeest, U.; Courvoisier, T. J.-L.; Kayer, R.; Kellermann, K. I.; Kuhr, H.; Refsdal, S.

    1988-06-01

    The authors have recently initiated a high resolution direct imaging survey of a selected sample of highly luminous quasars (HLQs). The observations are carried out with the 2.2 m telescope at ESO, and with the VLA at the NRAO, New Mexico. Following the first observing run at ESO, the authors have reported the discovery of a new gravitational lens system for the HLQ UM 673 = Q 0142-100. Additional observations supporting this interpretation are discussed here. Application of gravitational optometry to this system is given: a value of M0 = 2.41011M_sun; is derived for the mass of the lensing galaxy located between UM 673 A and B and a most likely estimate of ?t = 7 weeks is found for the expected delay between the arrival times of a similar variability event in the two lensed images of the quasar (H0 = 75 km s-1Mpc-1, q0 = 0).

  17. Um Projeto de Interveno nos Espaos de Exposies do Planetrio do Parque do Ibirapuera

    NASA Astrophysics Data System (ADS)

    Elias, D. S.; Amaral, L. H.; de Arajo, C. F., Jr.; Matsuura, O. T.; Voelzke, M. R.

    2005-08-01

    Cada vez mais a humanidade, em sua imensa maioria, est alheia s prprias conquistas. A insatisfao com esta realidade tem levado muitos pesquisadores, instituies, empresas e governos a procurar formas alternativas de acompanhar e transmitir todo este acervo cientfico cultural sociedade, buscando a melhoria da qualidade da divulgao cientfica e contribuindo para o processo de cultura e alfabetizao cientfica. No h tempo nem espao nos limitados planos curriculares do ensino mdio e mesmo nos programas de ensino que propiciem a cultura cientfica e o acompanhamento do vertiginoso progresso cientfico e tecnolgico atual. Neste sentido, a educao formal escolar precisa ser complementada ou acrescida de uma educao informal, extra-escolar, que possa oferecer sociedade o que a escola no pode oferecer. A interao do pblico com museus, feiras de cincias, planetrios, exposies cientficas e/ou culturais de grande importncia para a aquisio e difuso de conhecimentos relacionados ao mundo cientfico. Reconhecidamente como um modelo de alfabetizao cientfica esses ambientes promovem uma interao social capaz de propiciar de forma efetiva uma melhor relao ensino-aprendizagem com o pblico. Partindo desta realidade a Universidade Cruzeiro do Sul e a Escola Municipal de Astronomia (EMA) vm desenvolvendo um projeto de interveno no espao em torno do Planetrio do Parque do Ibirapuera com o objetivo de se implantar um ambiente de aprendizagem motivador e desafiador que promova a popularizao de contedos relacionados astronomia, astrofsica e cosmologia. Busca-se, tambm, a aproximao e interao do pblico com exposies que esto sendo implementadas no planetrio. Considerando que se trata de um projeto de mestrado em fase inicial o objetivo do presente trabalho apresentar a concepo bsica e os critrios que esto sendo utilizados do ponto de vista pedaggico para as indicaes dos objetos e experimentos que sero expostos, procurando formas de construir, expor e apresen! t-los d e maneira mais eficiente em termos de uma aprendizagem significativa. (Apoio: Fundao Vitae, CNPq)

  18. JAVARRAY UM ARRAY RECONFIGURVEL PARA REDUO DE CONSUMO DE ENERGIA EM ARQUITETURAS JAVA

    E-print Network

    Wagner, Flávio Rech

    JAVARRAY ­ UM ARRAY RECONFIGURÁVEL PARA REDU??O DE CONSUMO DE ENERGIA EM ARQUITETURAS JAVA João energia. Com a verificação das necessidades computacionais dos trechos mais relevantes de aplicações Java economizando-se energia. Mais de 50% do código pode ser executado no JavArray, acelerando-se portanto

  19. Um enfoque antropolgico para o ensino de astronomia no nvel mdio

    NASA Astrophysics Data System (ADS)

    Costa, G. B.; Jafelice, L. C.

    2003-08-01

    H uma enorme carncia de materiais didtico-pedaggicos em astronomia para professores do ensino mdio, sobretudo materiais que explorem tambm aspectos humansticos. A origem do Universo um bom exemplo desta constatao central. Embora tal origem teve explicaes culturais diversas, os professores no tm informaes sobre isso e muito menos material que trabalhe diferentes vises de mundo e treinamento que os capacite a abord-las devidamente. Conseqentemente o ensino de astronomia costuma ser tecnicista e dissociado do aspecto humano que alimenta o grande interesse e curiosidade que esses temas despertam. Aqui apresentamos propostas visando contribuir para reverter esse quadro e trabalhamos distintas vises de Universo: espontneas, autctones e cientficas. Desenvolvemos prticas, materiais instrucionais e textos para viabilizar a adoo de um enfoque antropolgico para o ensino de astronomia no nvel mdio, no qual as culturas humanstica e cientfica sejam integradas de uma maneira contextualizada e eficaz para aquele ensino. Estas propostas foram aplicadas em um curso de treinamento para professores da rede pblica de diferentes disciplinas. A receptividade dos professores abordagem proposta e os resultados alcanados foram muito estimulantes. Destes, destacamos: produo de roteiros de atividades; desenvolvimento de prticas didtico-pedaggicas especficas (e.g., encenao de mitos; dana primordial guarani; "criao" de constelaes e interpretaes pluriculturais; etc.); e sugestes concretas para a efetiva realizao de um ensino interdisciplinar contextualizado, onde questes cosmognicas servem de mote para iniciar tal ensino. Discutimos estes resultados e como o enfoque adotado pode instrumentalizar os professores para leituras de mundo que incluem naturalmente aspectos culturais, sociais e histricos associados aos temas estudados. (PPGECNM/UFRN; PRONEX/FINEP; NUPA/USP; Temticos/FAPESP)

  20. MyGFT: um Mdulo de Integrao entre MySQL e Google Fusion Tables

    E-print Network

    Hara, Carmem Satie

    MyGFT: um Módulo de Integração entre MySQL e Google Fusion Tables Alexandre Savaris1,2 , Carmem@inf.ufsc.br Abstract. This work presents MyGFT, a storage engine for integrating MySQL DBMS and Google Fusion Tables to MySQL and how its use can be a viable alternative to data retrieval for controlled and structured

  1. Fermentation optimization for the production of bioactive polysaccharides from Cordyceps sinensis fungus UM01.

    PubMed

    Wang, Lan-Ying; Cheong, Kit-Leong; Wu, Ding-Tao; Meng, Lan-Zhen; Zhao, Jing; Li, Shao-Ping

    2015-08-01

    The optimal fermentation conditions and medium for the production of bioactive polysaccharides from the mycelium of Cordyceps sinensis fungus UM01 were investigated by using orthogonal design and high performance size exclusion chromatography coupled with multi-angel laser light scattering and refractive index detector (HPSEC-MALLS-RID). Results showed that the optimal temperature, initial pH, rotation speed, medium capacity (ratio of medium volume to the volume of flask bottle) and inoculums volume for the mycelium growth were 15 C, pH 6.0, 150 rpm, 2/5 (v/v), and 3% (v/v), respectively. Furthermore, bioactive polysaccharides from the mycelium of C. sinensis fungus UM01 were determined as polysaccharide fractions with the molecular weight above 10 kDa. The optimal fermentation medium was determined as a composition of glucose 30.0 g/L, sucrose 30.0 g/L, KH2PO4 1.0 g/L, CaCl2 0.5 g/L, yeast extract 3.0 g/L, and MgCl2 0.1g/L according to the maximum amount of the bioactive polysaccharides (486.1619.60 mg/L) measured by HPSEC-MALLS/RID. Results are helpful to establish an efficient and controllable fermentation process for the industrial production of bioactive polysaccharides from C. sinensis UM01, and beneficial to develop a unique health and functional product in future. PMID:25936285

  2. Improving Object Extraction With Depth-Based Fabian Prada, Leandro Cruz, Luiz Velho

    E-print Network

    de Figueiredo, Luiz Henrique

    these works aboard each problem from a machine learning perspective, where the accessibility to high quality images was hardly explored due to technical limitations on attain- ing real time and high quality depth.impa.br/{faprada, lcruz, lvelho} Fig. 1. Our inputs are the color and depth of a RGBD image. In the processing stage

  3. Expression Transfer between Photographs through Multilinear AAM's Ives Mac^edo Emilio Vital Brazil Luiz Velho

    E-print Network

    de Figueiredo, Luiz Henrique

    , we propose a novel approach for ex- pression transfer based on color images. We attack this problem, playing a ma- jor role in conveying identity and emotion. Developing a computational model is a quite with color image synthesis. Zhang et al. [15] proposes a technique to map a facial expression using

  4. Real-Time Image Processing manuscript Luis Pe~naranda Luiz Velho

    E-print Network

    de Figueiredo, Luiz Henrique

    of a scene in a way which is more natural for the human eye but, on the other hand, they introduce artifacts field of view (FOV, in photography, is the part of the world which is visible through the camera). Some techniques were also developed [5,16]; however, they need long human interaction or optimization methods

  5. Projective Texture Atlas and Applications Luiz Velho and Jonas Sossai Jr.

    E-print Network

    de Figueiredo, Luiz Henrique

    - tion to both surface shape and reflectance attributes. Most high-end 3D scanners Conference Title 1 of attribute maps for 3D surfaces is an important issue in Geometric Modeling, Visualization and Simulation of building and manipu- lating texture atlases for 3D photography applications. We adopt a variational

  6. A Topological Framework for Advancing Front Triangulation ESDRAS MEDEIROS, LUIZ VELHO, HELIO LOPES

    E-print Network

    de Figueiredo, Luiz Henrique

    been stimulated mainly by 3D Photography applications that be- came popular with advances in three dimensional range scanner technology. Typically, surface reconstruction methods generate a continuous surface front methods [2, 3], the mesh is constructed by progressively attaching tri- angles to the mesh

  7. Point Cloud Denoising Boris Mederos Luiz Velho Luiz Henrique de Figueiredo

    E-print Network

    de Figueiredo, Luiz Henrique

    algorithm for mesh denoising. 1 Introduction With the increasing use of 3D scanner and the growth adaptive Wiener filtering has been used successfully for 3D meshes by Peng et al [13], Pauly and Gross et on a projection procedure. The method construct a local reference and a local mapping for each point near

  8. Silhouette Enhanced Point-Based Rendering Jose Luiz Luz, Luiz Velho, Paulo Cezar P. Carvalho

    E-print Network

    de Figueiredo, Luiz Henrique

    {josell, lvelho, pcezar}@visgraf.impa.br ABSTRACT With the recent advances in the 3D scanning field Data Structures, Texture Mapping. 1 INTRODUCTION The problem of handling 3D datasets obtained from real ones are especially noticeable at the object's silhouette. Keywords: Point-based Rendering, Graphics

  9. Realistic Shadows on Mobile Augmented Reality Tassio Castro, Luiz Henrique de Figueiredo, Luiz Velho

    E-print Network

    de Figueiredo, Luiz Henrique

    Realistic Shadows on Mobile Augmented Reality Tassio Castro, Luiz Henrique de Figueiredo, Luiz of these platforms. Keywords-Mobile Augmented Reality, Rendering, Smooth Shadows; I. INTRODUO O uso de sombras

  10. GROUP FITNESS PROGRAM PARENTAL RELEASE AND INFORMED CONSENT STATEMENT-UM STUDENT / SPECIAL PROGRAM PARTICIPANT UNDER 18 YEARS OF AGE

    E-print Network

    Hill, Wendell T.

    GROUP FITNESS PROGRAM PARENTAL RELEASE AND INFORMED CONSENT STATEMENT- UM, for participation in RecWell Group Fitness program activities, including the use of Rec. I understand that my child's participation in the RecWell Group Fitness

  11. Design of a ROIC with 15um pitch for MWIR FPAs

    NASA Astrophysics Data System (ADS)

    Liang, Qinghua; Jiang, Dazhao; Chen, Honglei; Zhang, Qiwen; Ding, Ruijun

    2015-10-01

    A 640512 readout integrated circuit (ROIC) with 15um pixel pitch for middle-wave infrared focal plane arrays (MWIR FPAs) is designed in this paper. The 15um pixel pitch presents several challenges to the ROIC design, such as achieving the required charge storage capacity to preserve the high SNR and reading or processing the pixel signals correctly to achieve the required frame rate. A novel structure that four neighboring pixels share one integration capacitor is presented as a feasible approach to getting a large charge capacity in the limited pixel area. Meanwhile, the pixel circuit chooses the direct injection (DI) which occupies the small layout area as the input stage for MW and contains two sample and hold modules to further increase the charge capacity. Moreover,the peripheral analog signal chain circuit, which is composed of a PMOS source follower, a column amplifier and the complementary output stage, is designed to transfer the signals from unit cell with less voltage loss,lower power consumption, lower noise and higher linearity. More importantly, in our design, only half chain circuit are required therefore the corresponding power consumption will be reduced greatly. In order to accommodate this design, two kinds of pixel signal readout sequences are compared. By adopting the 0.18um 1P6M mixed signal CMOS process, the circuit architecture can make the effective charge capacity of 13Me- per pixel with 1.38V final output range. The 44 circuit layout will be fulfilled as a whole and in this way the effective integration capacitor can be increased. According to the simulation results, this circuit works well under 3.3V power supply and achieves 10MHZ readout rate and less than 0.1% nonlinearity.

  12. The UM-Dearborn Observatory: Variable-object Research from an Urban Site

    NASA Astrophysics Data System (ADS)

    Clyne, Elisabeth; Clarkson, William I.; Rasmussen, Eric J; Bord, Donald J.; Dage, Kristen; Matzke, David; Swift, Carrie

    2014-06-01

    Since its construction in 2007, the UM-Dearborn Observatory has provided a valuable educational tool both for students at UM-Dearborn and our neighbor-institution the Henry Ford Community College, and for the public at-large. We have recently (Jan 2014) added a systematic long-term research program with our 0.4m main telescope, to photometrically monitor a number of bright variable objects, including X-ray binaries and chemically-peculiar metal-poor stars over long timescales. We ultimately envision assembling a photometric database of (at least) four-color photometry over years-decades (i.e., many hundreds of orbital timescales for close binaries), with the preponderance of datapoints taken by undergraduates. To conduct this program, we have had to overcome a number of site challenges, the solutions of which will be useful to many programs using small telescopes at urban sites. The 0.4m telescope lies on a shared building within UM-Dearborn's main Fairlane campus - i.e., is about 20 meters above sea level, near several sources of water vapor (including an active steam vent less than 15 meters away), experiences significant mechanical vibrations from other building functions, and lies about 6 miles from central Detroit, well within the Detroit-Ann Arbor conurbation. Observing conditions are thus highly variable, with 5 arcsecond seeing typical and significant transparency variations observed even during a clear night. Nevertheless, we are now able to make scientifically useful observations in a semi-automatic way, to which our chosen scientific niche is well-suited. We present here our solutions to these challenges, along with initial results from our ongoing monitoring program.

  13. Uma Viso do Universo Segundo um Grupo de Alunos do Ensino Mdio de So Paulo

    NASA Astrophysics Data System (ADS)

    Elias, D. S.; Arajo, M.; Amaral, L. H.; Voelzke, M. R.; Arajo, M.

    2005-08-01

    A astronomia, embora seja uma cincia popular, com inmeras descobertas de interesse pblico, ainda apresentada desconsiderando-se os aspectos histricos e cientficos relacionados ao seu desenvolvimento, sendo geralmente veiculada nos meios de comunicao de maneira pouco esclarecedora e no raro com imprecises. Neste trabalho analisou-se a concepo de um grupo de estudantes de Ensino Mdio sobre conceitos de astronomia, visando identificar sua viso de mundo a respeito do Universo, envolvendo idias sobre espao e tempo. Para issso, foi aplicado um questionrio em trs escolas da grande So Paulo em um espao amostral de 270 alunos. Constatou-se que, embora o ensino de astronomia esteja previsto nos PCNEM, os resultados obtidos na pesquisa mostram que h grande deficincia no conhecimento dos temas investigados. Nesse sentido, verificou-se que apenas 20% dos alunos eram capazes de relacionar a sucesso das semanas com as fases da lua, enquanto 28% associaram as estaes do ano inclinao do eixo de rotao da Terra. Por outro lado, somente 23% dos alunos tinham noes das distncias entre os objetos celestes prximos da Terra e 56% conseguiram relacionar o Big Bang com a origem do Universo. Finalmente, constatou-se que 37% reconheciam o ano-luz como uma unidade de distncia e 60% reconheciam o Sol como sendo uma estrela. Apesar de 60% dos alunos indicarem que a escola a principal fonte para aquisio dos conhecimentos de astronomia, conclui-se que seus conceitos nessa rea ainda so inadequados, havendo necessidade de ampliao e aprimoramento da abordagem desses contedos nos ambientes escolares.

  14. Comparing the genomes of Helicobacter pylori clinical strain UM032 and Mice-adapted derivatives

    PubMed Central

    2013-01-01

    Background Helicobacter pylori is a Gram-negative bacterium that persistently infects the human stomach inducing chronic inflammation. The exact mechanisms of pathogenesis are still not completely understood. Although not a natural host for H. pylori, mouse infection models play an important role in establishing the immunology and pathogenicity of H. pylori. In this study, for the first time, the genome sequences of clinical H. pylori strain UM032 and mice-adapted derivatives, 298 and 299, were sequenced using the PacBio Single Molecule, Real-Time (SMRT) technology. Result Here, we described the single contig which was achieved for UM032 (1,599,441bp), 298 (1,604,216bp) and 299 (1,601,149bp). Preliminary analysis suggested that methylation of H. pylori genome through its restriction modification system may be determinative of its host specificity and adaptation. Conclusion Availability of these genomic sequences will aid in enhancing our current level of understanding the host specificity of H. pylori. PMID:23957912

  15. RAPID/RAM/UM - An integrated computer environment for performing system reliability assessments

    SciTech Connect

    Chu, B.B.; Rumble, E.T.; Stevens, C.R.

    1987-01-01

    Many nuclear utility companies have now performed plant-specific system reliability assessments (SRAs) for a variety of applications, such as determination of alternative system design modifications, assessment of testing and maintenance strategies, examination of procedural changes, responding to regulatory inquiries, etc. Manually updating the SRA logic models and component reliability data to keep them up-to-date is a tedious, time-consuming, man-power-intensive, and sometimes impractical task. The amount of information as well as the lack of adequate computer software for automated updating makes it difficult to keep the SRAs current. RAPID's RAM and UM software, which are part of the Electric Power Research Institute (EPRI's) RAPID software development effort under the risk assessment program of the Nuclear Power Division, are designed to overcome many of these difficulties and to provide a productive environment for performing various system reliability engineering activities. This paper summarizes the development and demonstration of the RAPID/RAM-UM software at Arizona Nuclear Power Project (ANPP's) Palo Verde Nuclear Generation Station.

  16. Otimizao de procedimento de manobra para induo de reentrada de um satlite retornvel

    NASA Astrophysics Data System (ADS)

    Schulz, W.; Suarez, M.

    2003-08-01

    Veculos espaciais que retornam Terra passam por regimes de velocidade e condies de vo distintos. Estas diferenas dificultam sua concepo aerodinmica e o planejamento de seu retorno. A partir de uma proposta de um veculo orbital retornvel (satlite SARA, em desenvolvimento no IAE/CTA) para realizao de experimentos cientficos e tecnolgicos em ambiente de baixa gravidade, surge a necessidade de realizarem-se estudos considerando-se os aspectos relativos sua aerodinmica. Aps o lanamento, o veculo deve permanecer em rbita pelo tempo necessrio para a conduo de experimentos, sendo depois direcionado Terra e recuperado em solo. A concepo aerodinmica de importncia para o vo em suas diversas fases e deve considerar aspectos relativos estabilizao Aerodinmica e ao arrasto atmosfrico, sendo este ltimo de importncia crucial na anlise do aquecimento a ser enfrentado. A manobra de retorno inclui consideraes sobre as condies atmosfricas e dinmica de reentrada, devendo ser calculada de forma mais precisa possvel. O trabalho proposto avalia estudos da dinmica de vo de um satlite recupervel considerando aspectos relativos determinao orbital com GPS, tcnica utilizada com sucesso na CONAE, e seu comportamento aerodinmico em vo balstico de retorno, com nfase em sua fase de reentrada atmosfrica. Busca-se otimizar a manobra de reentrada de tal forma que a utilizao do sistema GPS garanta minimizar a rea de impacto com o solo.

  17. VizieR Online Data Catalog: XMM survey of 12um selected galaxies (Brightman+, 2011)

    NASA Astrophysics Data System (ADS)

    Brightman, M.; Nandra, K.

    2011-11-01

    We present an X-ray spectral analysis of 126 galaxies of the 12um galaxy sample (Rush et al. 1993, Cat. VII/157). By studying this sample at X-ray wavelengths, we aim to determine the intrinsic power, continuum shape and obscuration level in these sources. We improve upon previous works by the use of superior data in the form of higher signal-to-noise ratio spectra, finer spectral resolution and a broader bandpass from XMM-Newton. We pay particular attention to Compton thick active galactic nucleus (AGN) with the help of new spectral fitting models that we have produced, which are based on Monte Carlo simulations of X-ray radiative transfer, using both a spherical and torus geometry, and taking into account Compton scattering and iron fluorescence. (8 data files).

  18. Infrared Luminosities and Aromatic Features in the 24um Flux Limited Sample of 5MUSES

    E-print Network

    Wu, Yanling; Armus, Lee; Cormier, Diane; Shi, Yong; Dale, Daniel; Dasyra, Kalliopi; Smith, J D; Papovich, Casey; Draine, Bruce; Rahman, Nurur; Stierwalt, Sabrina; Fadda, Dario; Lagache, G; Wright, Edward L

    2010-01-01

    We study a 24\\,$\\mu$m selected sample of 330 galaxies observed with the Infrared Spectrograph for the 5\\,mJy Unbiased Spitzer Extragalactic Survey. We estimate accurate total infrared luminosities by combining mid-IR spectroscopy and mid-to-far infrared photometry, and by utilizing new empirical spectral templates from {\\em Spitzer} data. The infrared luminosities of this sample range mostly from 10$^9$L$_\\odot$ to $10^{13.5}$L$_\\odot$, with 83% in the range 10$^{10}$L$_\\odot ur sample than the ratios measured from the nuclear spectra of nearby normal galaxies, most probably indicating a difference in the ionization state or grain size distribution between the nuclear regions and the entire galaxy. Finally, we provide a calibration relating the monochromatic 5.8, 8, 14 and 24um continuum or Aromatic Feature luminosity to L$_{\\rm IR}$ for different types of objects.

  19. Comparative genomic analysis of Mycobacterium iranicum UM_TJL against representative mycobacterial species suggests its environmental origin

    PubMed Central

    Tan, Joon Liang; Ngeow, Yun Fong; Wee, Wei Yee; Wong, Guat Jah; Ng, Hien Fuh; Choo, Siew Woh

    2014-01-01

    Mycobacterium iranicum is a newly reported mycobacterial species. We present the first comparative study of M. iranicum UM_TJL and other mycobacteria. We found M. iranicum to have a close genetic association with environmental mycobacteria infrequently associated with human infections. Nonetheless, UM_TJL is also equipped with many virulence genes (some of which appear to be the consequence of transduction-related gene transfer) that have been identified in established human pathogens. Taken all together, our data suggest that M. iranicum is an environmental bacterium adapted for pathogenicity in the human host. This comparative study provides important clues and forms the basis for future functional studies on this mycobacterium. PMID:25417557

  20. Un problema resonante para un sistema

    E-print Network

    De Npoli, Pablo Luis

    solucin si se asumen las condiciones de Landesman-Lazer conditions, que fueron introducidas en el trabajo: E. Landesman and A. Lazer: Nonlinear perturbations of linear elliptic boundary value problems, bajo condiciones de Dirichlet. #12;Un survey sobre condiciones de Landesman-Lazer: J. Mawhin: Landesman-Lazer

  1. Soluciones a Problemas de Ingenieria de Rios

    E-print Network

    Julien, Pierre Y.

    Mississippi River basinSheet erosion in the Upper Mississippi River basin #12;12 Crop field area of the Imha of the Yellow River Basin #12;17 #12;18 3. Riverbed Degradation Bank Caving in Mississippi #12;19 Headcutting;Slide 63 PGC2 Typical dike construction on the Mississippi River Phil Combs, 8/29/2002 #12;33 Example 3

  2. JORNADAS SOBRE LOS PROBLEMAS DEL MILENIO

    E-print Network

    Rotger, Vctor

    iculos. Me sugirio que a lo mejor podria introducirme en la teoria de numeros a traves del estudio de~neros del grupo de teoria de numeros de la Universitat Polit`ecnica de Catalunya, la Universitat de ecuaciones diofanticas. Y ese juego se lleva practicando desde hace muchos siglos, sin duda mucho antes que

  3. Problemas de Topologia. Espacios Funcionales (Hoja 7)

    E-print Network

    Martín Peinador, Elena

    (X) el mismo espacio dotado de la topolog´ia de la convergencia puntual. Sea Y un subespacio de X, y sea(I, R) el conjunto de las funciones continuas f : I = [0, 1] R dotado de la m´etrica uniforme, (f, g cerrado en el espacio Y X dotado de la topolog´ia de la convergencia uniforme en los compactos. 9. Sea X

  4. Tesis de Licenciatura Problemas en grafos interseccion

    E-print Network

    Lin, Min Chih

    del circulo. Esta clase de grafos no ha sido muy estudiada en la literatura, siendo introducidos por literatura lo hacian en O(n2 ) [21]. iv #12;Indice 1 Introduccion 1 1.1 Definiciones basicas y notaci

  5. Evidence for Misaligned Disks in the T Tauri Triple System: 10 um Super-Resolution with MMTAO and Markov Chains

    E-print Network

    Andrew Skemer; Laird Close; Philip Hinz; William Hoffmann; Matthew Kenworthy; Douglas Miller

    2007-12-10

    Although T Tauri is one of the most studied young objects in astronomy, the nature of its circumstellar environment remains elusive due, in part, to the small angular separation of its three components (North-South and South a-b are separated by 0.68" and 0.12" respectively). Taking advantage of incredibly stable, high Strehl, PSFs obtained with Mid-IR adaptive optics at the 6.5 meter MMT, we are able to resolve the system on and off the 10um silicate dust feature (8.7um, 10.55um, and 11.86um; 10% bandwidth), and broad N. At these wavelengths, South a-b are separated by only ~0.3 lambda/D. This paper describes a robust Markov Chain Monte Carlo technique to separate all three components astrometrically and photometrically, for the first time, in the mid-IR. Our results show that the silicate feature previously observed in the unresolved T Tau South binary is dominated by T Tau Sa's absorption, while Sb does not appear to have a significant feature. This suggests that a large circumbinary disk around Sa-Sb is not likely the primary source of cool dust in our line-of-sight, and that T Tau Sa is enshrouded by a nearly edge-on circumstellar disk. Surprisingly, T Tau Sb does not appear to have a similarly oriented disk.

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

    E-print Network

    dos Santos, C.A.

    Einstein apaixonado: A cincia mal-contada de um mito bem-traado Carlos Alberto dos Santos Universidade Federal do Rio Grande do Sul, Instituto de Fsica O pargrafo de abertura de Einstein Apaixonado Einstein ser revelado em toda a sua complexidade psicolgica. Overbye manipula bem as palavras e constri

  7. Avda. Teniente Flomesta, 5. Edif. Convalecencia. 30003 Murcia T. 868 883 000 F. 868 883 603 www.um.es

    E-print Network

    Acacio, Manuel

    , dependiente directamente del Rector y destinada a desarrollar las polticas de igualdad en materia de gnero la igualdad de gnero que se desarrollen tanto por iniciativa de la propia Universidad como por la de.um.es REGLAMENTO DE LA UNIDAD PARA LA IGUALDAD ENTRE MUJERES Y HOMBRESDELAUNIVERSIDADDEMURCIA (APROBADO EN CONSEJO

  8. Origin and characteristics of yardangs in the Um Al-Rimam depressions (N Kuwait)

    NASA Astrophysics Data System (ADS)

    Al-Dousari, Ali. M.; Al-Elaj, Maraheb; Al-Enezi, Eqbal; Al-Shareeda, Abdulaziz

    2009-03-01

    Although Arabia hosts one of the largest deserts in the world, studies regarding aeolian erosional features in general and yardangs in particular are rare. The principal aim of this study is to delineate and investigate the various forms of yardangs in the Um Al-Rimam depressions in the northern part of Kuwait. The study area consists of two main depressions connected by neck area made up of continental sediments. Both depressions are surrounded by a dissected escarpment and their floors host muddy playas. On lithological bases, three main types of yardang have been identified: 7 yardangs are sculptured in sandstones of Lower Fars Formation (Lower to Middle Miocene), 23 are carved in calcretic rocks of Ghar Formation (Oligocene to Lower Miocene), and 11 yardangs are developed in Quaternary sediments. Their mean orientation NW (297) coincides with the prevailing direction of the strong local northwesterly wind called the shamal. The average length/width ratio is 1.5:1. The wide geographic distribution of yardangs around the margins of the northern depression is due to sand blasting. This is explained by the annual sand accumulation measured in the study area where the northern depression shows 143 times higher accumulation than the southern depression, the neck area and the platform above the depressions. Also, the field measurements for annual erosional rates show that the sides of the yardangs are more affected by erosion compared to their middle parts. Remarkably slight mineralogical variations were detected within the surface sediments of Um Al-Rimam depressions and the Quaternary muddy yardangs which indicate a common origin. The age of yardangs is unknown but annual erosional rates on a small Quaternary muddy yardang suggest that they range in age between 44 and 1500 years depending on yardang size. It is believed, as indicated from field observation and interpretation of aerial photos, that the majority of yardangs are pre-existing bedrock forms. These forms were developed by paleo-surface hydrological processes which were modified by wind action in latter phase.

  9. Lens or Binary? Chandra Observations of the Wide-Separation Broad Absorption Line Quasar Pair UM 425

    NASA Astrophysics Data System (ADS)

    Aldcroft, Thomas L.; Green, Paul J.

    2003-08-01

    We have obtained a 110 ks Chandra ACIS-S exposure of UM 425, a pair of QSOs at z=1.47 separated by 6.5", which show remarkably similar emission and broad absorption line (BAL) profiles in the optical/UV. Our 5000 count X-ray spectrum of UM 425A (the brighter component) is well fitted with a power law (photon spectral index ?=2.0) partially covered by a hydrogen column of 3.81022 cm-2. The underlying power-law slope for this object and for other recent samples of BALQSOs is typical of radio-quiet quasars, lending credence to the hypothesis that BALs exist in every quasar. Assuming the same ? for the much fainter image of UM 425B, we detect an obscuring column 5 times larger. We search for evidence of an appropriately large lensing mass in our Chandra image and find weak diffuse emission near the quasar pair, with an X-ray flux typical of a group of galaxies at redshift z~0.6. From our analysis of archival HST WFPC2 and NICMOS images, we find no evidence for a luminous lensing galaxy, but note a 3 ? excess of galaxies in the UM 425 field with plausible magnitudes for a z=0.6 galaxy group. However, the associated X-ray emission does not imply sufficient mass to produce the observed image splitting. The lens scenario thus requires a dark (high M/L ratio) lens or a fortuitous configuration of masses along the line of sight. UM 425 may instead be a close binary pair of BALQSOs, which would boost arguments that interactions and mergers increase nuclear activity and outflows.

  10. An evaluation of China's water cycle in the MetUM-GC2 coupled model

    NASA Astrophysics Data System (ADS)

    Rodriguez, Jose; Marzin, Charline

    2015-04-01

    There is a general consensus in climate projections that the global hydrological cycle is likely to experience significant changes in the future, in response to increased concentrations of greenhouse gases. At the regional scale, model simulations show large variations in the predictions of changes in the components of the water cycle. Increasing confidence in regional prediction of the water cycle is at the top of the NWP and climate research agenda, requiring a comprehensive evaluation of the physical processes which may play an important role. Here we present preliminary results of an evaluation of the capacity of the MetUM-GC2 coupled model to reproduce the characteristics of the water cycle in the region of China. Using water budget techniques in the atmospheric and terrestrial branches we test the water cycle components and the model's ability to replicate the climatological annual cycle and its interannual variability. Recent drought and flood events are evaluated and various metrics are employed to compare the role played by the atmospheric general circulation including the boreal summer and winter monsoon regimes and soil moisture feedback in model and observations.

  11. Diagnosing resolution sensitivity over the Maritime Continent in the MetUM

    NASA Astrophysics Data System (ADS)

    Woolnough, S. J.; Bush, S. J.; Schiemann, R.; Turner, A. G.; Martin, G.

    2014-12-01

    The Maritime Continent, with over 25,000 islands ranging from hundreds to 780,000 square kilometers, is a key challenge for cumulus-convection and coastal parameterizations in climate resolution GCMs. We studied the resolution sensitivity of precipitation over the Maritime Continent in the MetUM AGCM at horizontal resolutions ranging from approximately 200 to 40 km. We found robust increases in summer precipitation over the Maritime Continent Islands and decreases in summer precipitation over the northern Maritime Continent seas, similar to the resolution sensitivity seen in other studies. These precipitation changes near the Maritime Continent can be large, exceeding 5 mm/day, and are the largest changes in tropical precipitation as resolution is increased. To explore the source of these changes, we present novel experiments to diagnose the role of increased resolution of different components of the AGCM, such as the orography, coastlines and atmospheric dynamics, in the Maritime Continent domain. Our results suggest that total orographic precipitation in the Maritime Continent domain is resolution dependent at these scales. While increased precipitation associated with the higher resolution of the mean orography (see Figure 1) is compensated for by decreasing precipitation associated with changes in the subgrid orography and its effect on parameterized drag, the total orographic precipitation is not equal across resolutions. Changes in moisture convergence, precipitation and circulation due to improved resolution of the orography then affect precipitation in the wider Indo-Pacific region.

  12. Diagnosing resolution sensitivity over the Maritime Continent in the MetUM

    NASA Astrophysics Data System (ADS)

    Bush, Stephanie; Scheimann, Reinhard; Woolnough, Steve; Turner, Andrew; Martin, Gill

    2015-04-01

    The Maritime Continent, with over 25,000 islands ranging from hundreds to 780,000 square kilometers, is a key challenge for cumulus-convection and coastal parameterizations in climate resolution GCMs. We studied the resolution sensitivity of precipitation over the Maritime Continent in the MetUM AGCM at horizontal resolutions ranging from approximately 200 to 40 km. We found robust increases in summer precipitation over the Maritime Continent Islands and decreases in summer precipitation over the northern Maritime Continent seas, similar to the resolution sensitivity seen in other studies. These precipitation changes near the Maritime Continent can be large, exceeding 5 mm/day, and are the largest changes in tropical precipitation as resolution is increased. To explore the source of these changes, we present novel experiments to diagnose the role of increased resolution of different components of the AGCM, such as the orography, coastlines and atmospheric dynamics, in the Maritime Continent domain. Our results suggest that total orographic precipitation in the Maritime Continent domain is resolution dependent at these scales. While increased precipitation associated with the higher resolution of the mean orography is compensated for by decreasing precipitation associated with changes in the subgrid orography and its effect on parameterized drag, the total orographic precipitation is not equal across resolutions. Experiments are in progress to determine the impact of better resolving other boundary conditions, such as coastlines.

  13. 4/5/2014 Turbinados | Um canceriano sem lar. http://edsonjnovaes.wordpress.com/2014/04/02/turbinados/ 1/3

    E-print Network

    Chiao, Jung-Chih

    4/5/2014 Turbinados | Um canceriano sem lar. http://edsonjnovaes.wordpress.com/2014 canceriano sem lar. http://edsonjnovaes.wordpress.com/2014/04/02/turbinados/ 2/3 Technology uses micro Internet" Em "Arte" #12;4/5/2014 Turbinados | Um canceriano sem lar. http://edsonjnovaes.wordpress.com/2014

  14. Project UM-HAUL: A self-unloading reusable lunar lander

    NASA Technical Reports Server (NTRS)

    1991-01-01

    The establishment of a lunar base is technologically and financially challenging. Given the necessary resources and political support, it can be done. In addition to the geopolitical obstacles, however, there are logistical problems involved in establishing such bases that can only be overcome with the acquisition of a significant transportation and communications network in the Earth-Moon spatial region. Considering the significant number of payloads that will be required in this process, the mass-specific cost of launching these payloads, and the added risk and cost of human presence in space, it is clearly desirable to automate major parts of such an operation. One very costly and time-consuming factor in this picture is the delivery of payloads to the Moon. Foreseeable payloads would include atmospheric modules, inflatable habitat kits, energy and oxygen plant elements, ground vehicles, laboratory modules, crew supplies, etc. The duration of high-risk human presence on the Moon could be greatly reduced if all such payloads were delivered to the prospective base site in advance of crew arrival. In this view, the idea of a 'Self-Unloading Reusable Lunar Lander' (SURLL) arises naturally. The general scenario depicts the lander being brought to low lunar orbit (LLO) from Earth atop a generic Orbital Transfer Vehicle (OTV). From LLO, the lander shuttles payloads down to the lunar surface, where, by means of some resident, detachable unloading device, it deploys the payloads and returns to orbit. The general goal is for the system to perform with maximum payload capability, automation, and reliability, while also minimizing environmental hazards, servicing needs, and mission costs. Our response to this demand is UM-HAUL, or the UnManned Heavy pAyload Unloader and Lander. The complete study includes a system description, along with a preliminary cost analysis and a design status assessment.

  15. The response of chemistry and climate to the 11-year solar cycle in UM-UKCA

    NASA Astrophysics Data System (ADS)

    Bednarz, Ewa; Telford, Paul; Maycock, Amanda; Abraham, Luke; Braesicke, Peter; Pyle, John

    2014-05-01

    It is now generally agreed that the UV variability associated with the 11-year solar cycle leads to changes in ozone and temperature in the upper stratosphere. In addition, a range of observational and modelling studies suggest that such changes are the starting point for a chain of processes (including feedbacks) resulting in circulation changes in many areas of the atmosphere. However, precise details of the interactions between chemistry and meteorology induced by solar variability remain under question. In our study, we use a version of the UM-UKCA chemistry-climate model with consistent spectrally-resolved solar variability. While the solar cycle in heating rates has been applied with the method used in HadGEM2-ES, fine spectrally-resolved solar variability has been uniquely incorporated into the Fast-JX photolysis scheme. We perform two 50-year-long perpetual year solar maximum and solar minimum integrations and complement them with a three member ensemble of a transient 1960-2010 integration in which boundary conditions correspond by and large to the CCMI Ref-C1 scenario. We show how the inferred solar signals vary between the individual experiments. This indicates high natural variability and the resulting contamination of the solar signal with contributions from other processes as well as the existence of possible non-linearities between the solar cycle and other atmospheric forcings. Therefore, we highlight that long data series are needed to ensure correct attribution of the modelled and observed anomalies. In addition, we present results from two perpetual year experiments in which the solar cycle was applied exclusively in either short-wave heating or photolysis. We find large non-linearities in the modelled anomalies as compared to the realistic integration with both modulations included. This highlights the subtle nature of the dynamical response to the solar cycle forcing and indicates the need for interactive chemistry with a detailed photolysis scheme for modelling the solar-climate interactions fully.

  16. Black phosphorus mode-locked Er-doped ZBLAN fiber laser at 2.8 um wavelength

    E-print Network

    Qin, Zhipeng; Zhao, Chujun; Wen, Shuangchun; Yuan, Peng; Qian, Liejia

    2015-01-01

    Mid-infrared saturable absorber mirror is successfully fabricated by transferring the mechanically exfoliated black phosphorus onto the gold-coated mirror. With the as-prepared black phosphorus saturable absorber mirror, a continuous-wave passively mode-locked Er:ZBLAN fiber laser is demonstrated at the wavelength of 2.8 um, which delivers a maximum average output power of 613 mW, a repetition rate of 24 MHz and a pulse duration of 42 ps. To the best of our knowledge, it is the first time to demonstrate black phosphorus mode-locked laser at 2.8 um wavelength. Our results demonstrate the feasibility of black phosphorus flake as a new two-dimensional material for application in mid-infrared ultrafast photonics.

  17. Metforas de Perspectivas Culturais na (re) definio de padres de colaborao de um jogo de multi-toque para

    E-print Network

    Barbosa, Alberto

    112 Metáforas de Perspectivas Culturais na (re) definição de padrões de colaboração de um jogo de usuários com autismo. Inicialmente, concebemos padrões de colaboração no jogo colaborativo multi-toque PAR usuários a adoção dos mecanismos colaborativos do jogo e aproximá-los aos poucos à cultura colaborativa

  18. UM 625 REVISITED: MULTIWAVELENGTH STUDY OF A SEYFERT 1 GALAXY WITH A LOW-MASS BLACK HOLE

    SciTech Connect

    Jiang Ning; Dong Xiaobo; Yang Huan; Wang Junxian; Ho, Luis C. E-mail: xbdong@ustc.edu.cn

    2013-06-10

    UM 625, previously identified as a narrow-line active galactic nucleus (AGN), actually exhibits broad H{alpha} and H{beta} lines whose width and luminosity indicate a low black hole (BH) mass of 1.6 Multiplication-Sign 10{sup 6} M{sub Sun }. We present a detailed multiwavelength study of the nuclear and host galaxy properties of UM 625. Analysis of Chandra and XMM-Newton observations suggests that this system contains a heavily absorbed and intrinsically X-ray weak ({alpha}{sub ox} = -1.72) nucleus. Although not strong enough to qualify as radio loud, UM 625 does belong to a minority of low-mass AGNs detected in the radio. The broadband spectral energy distribution constrains the bolometric luminosity to L{sub bol} Almost-Equal-To (0.5-3) Multiplication-Sign 10{sup 43} erg s{sup -1} and L{sub bol}/L{sub Edd} Almost-Equal-To 0.02-0.15. A comprehensive analysis of Sloan Digital Sky Survey and Hubble Space Telescope images shows that UM 625 is a nearly face-on S0 galaxy with a prominent, relatively blue pseudobulge (Sersic index n = 1.60) that accounts for {approx}60% of the total light in the R band. The extended disk is featureless, but the central {approx}150-400 pc contains a conspicuous semi-ring of bright, blue star-forming knots, whose integrated ultraviolet luminosity suggests a star formation rate of {approx}0.3 M{sub Sun} yr{sup -1}. The mass of the central BH roughly agrees with the value predicted from its bulge velocity dispersion but is significantly lower than that expected from its bulge luminosity.

  19. Design, fabrication and testing of 17um pitch 640x480 uncooled infrared focal plane array detector

    NASA Astrophysics Data System (ADS)

    Jiang, Lijun; Liu, Haitao; Chi, Jiguang; Qian, Liangshan; Pan, Feng; Liu, Xiang

    2015-10-01

    Uncooled infrared focal plane array (UIRFPA) detectors are widely used in industrial thermography cameras, night vision goggles, thermal weapon sights, as well as automotive night vision systems. To meet the market requirement for smaller pixel pitch and higher resolution, we have developed a 17um pitch 640x480 UIRFPA detector. The detector is based on amorphous silicon (a-Si) microbolometer technology, the readout integrated circuit (ROIC) is designed and manufactured with 0.35um standard CMOS technology on 8 inch wafer, the microbolometer is fabricated monolithically on the ROIC using an unique surface micromachining process developed inside the company, the fabricated detector is vacuum packaged with hermetic metal package and tested. In this paper we present the design, fabrication and testing of the 17um 640x480 detector. The design trade-off of the detector ROIC and pixel micro-bridge structure will be discussed, by comparison the calculation and simulation to the testing results. The novel surface micromachining process using silicon sacrificial layer will be presented, which is more compatible with the CMOS process than the traditional process with polyimide sacrificial layer, and resulted in good processing stability and high fabrication yield. The performance of the detector is tested, with temperature equivalent temperature difference (NETD) less than 60mK at F/1 aperture, operability better than 99.5%. The results demonstrate that the detector can meet the requirements of most thermography and night vision applications.

  20. VizieR Online Data Catalog: 12um ISOCAM survey of the ESO-Sculptor field (Seymour+, 2007)

    NASA Astrophysics Data System (ADS)

    Seymour, N.; Rocca-Volmerange, B.; de Lapparent, V.

    2007-11-01

    We present a detailed reduction of a mid-infrared 12um (LW10 filter) ISOCAM open time observation performed on the ESO-Sculptor Survey field (Arnouts et al., 1997A&AS..124..163A). A complete catalogue of 142 sources (120 galaxies and 22 stars), detected with high significance (equivalent to 5{sigma}), is presented above an integrated flux density of 0.31mJy. Star/galaxy separation is performed by a detailed study of colour-colour diagrams. The catalogue is complete to 1mJy and, below this flux density, the incompleteness is corrected using two independent methods. The first method uses stars and the second uses optical counterparts of the ISOCAM galaxies; these methods yield consistent results. We also apply an empirical flux density calibration using stars in the field. For each star, the 12um flux density is derived by fitting optical colours from a multi-band {chi}2 to stellar templates (BaSel-2.0) and using empirical optical-IR colour-colour relations. This article is a companion analysis to our 2007 paper (Rocca-Volmerange et al. 2007A&A...475..801R) where the 12um faint galaxy counts are presented and analysed per galaxy type with the evolutionary code PEGASE.3. (1 data file).

  1. Microwave window breakdown experiments and simulations on the UM/L-3 relativistic magnetron.

    PubMed

    Hoff, B W; Mardahl, P J; Gilgenbach, R M; Haworth, M D; French, D M; Lau, Y Y; Franzi, M

    2009-09-01

    Experiments have been performed on the UM/L-3 (6-vane, L-band) relativistic magnetron to test a new microwave window configuration designed to limit vacuum side breakdown. In the baseline case, acrylic microwave windows were mounted between three of the waveguide coupling cavities in the anode block vacuum housing and the output waveguides. Each of the six 3 cm deep coupling cavities is separated from its corresponding anode cavity by a 1.75 cm wide aperture. In the baseline case, vacuum side window breakdown was observed to initiate at single waveguide output powers close to 20 MW. In the new window configuration, three Air Force Research Laboratory-designed, vacuum-rated directional coupler waveguide segments were mounted between the coupling cavities and the microwave windows. The inclusion of the vacuum side power couplers moved the microwave windows an additional 30 cm away from the anode apertures. Additionally, the Lucite microwave windows were replaced with polycarbonate windows and the microwave window mounts were redesigned to better maintain waveguide continuity in the region around the microwave windows. No vacuum side window breakdown was observed in the new window configuration at single waveguide output powers of 120+MW (a factor of 3 increase in measured microwave pulse duration and factor of 3 increase in measured peak power over the baseline case). Simulations were performed to investigate likely causes for the window breakdown in the original configuration. Results from these simulations have shown that in the original configuration, at typical operating voltage and magnetic field ranges, electrons emitted from the anode block microwave apertures strike the windows with a mean kinetic energy of 33 keV with a standard deviation of 14 keV. Calculations performed using electron impact angle and energy data predict a first generation secondary electron yield of 65% of the primary electron population. The effects of the primary aperture electron impacts, combined with multiplication of the secondary populations, were determined to be the likely causes of the poor microwave window performance in the original configuration. PMID:19791954

  2. User's manual (UM) for the enhanced logistics intratheater support tool (ELIST) database utility segment version 8.1.0.0 for solaris 7.

    SciTech Connect

    Dritz, K.

    2002-03-06

    This document is the User's Manual (UM) for the Enhanced Logistics Intratheater Support Tool (ELIST) Database Utility Segment. It tells how to use its features to administer ELIST database user accounts.

  3. ON THE COMPACT H II GALAXY UM 408 AS SEEN BY GMOS-IFU: PHYSICAL CONDITIONS

    SciTech Connect

    Lagos, Patricio; Telles, Eduardo; Munoz-Tunon, Casiana; Tenorio-Tagle, Guillermo E-mail: etelles@on.br E-mail: rcarrasco@gemini.edu E-mail: gtt@inaoep.mx

    2009-06-15

    We present Integral Field Unit GMOS-IFU data of the compact H II galaxy UM 408, obtained at the Gemini South telescope, in order to derive the spatial distribution of emission lines and line ratios, kinematics, plasma parameters, and oxygen abundances as well the integrated properties over an area of 3''x4.''4 equivalent with {approx}750 pc x 1100 pc located in the central part of the galaxy. The starburst in this area is resolved into two giant regions of about 1.''5 and 1'' ({approx}375 and {approx}250 pc) diameter, respectively and separated 1.5-2'' ({approx}500 pc). The extinction distribution concentrate its highest values close but not coincident with the maxima of H{alpha} emission around each one of the detected regions. This indicates that the dust has been displaced from the exciting clusters by the action of their stellar winds. The ages of these two regions, estimated using H{beta} equivalent widths, suggest that they are coeval events of {approx}5 Myr with stellar masses of {approx}10{sup 4} M {sub sun}. We have also used [O III]/H{beta} and [S II]/H{alpha} ratio maps to explore the excitation mechanisms in this galaxy. Comparing the data points with theoretical diagnostic models, we found that all of them are consistent with excitation by photoionization by massive stars. The H{alpha} emission line was used to measure the radial velocity and velocity dispersion. The heliocentric radial velocity shows an apparent systemic motion where the east part of the galaxy is blueshifted, while the west part is redshifted, with a relative motion of {approx}10 km s{sup -1}. The velocity dispersion map shows supersonic values typical for extragalactic H II regions. We derived an integrated oxygen abundance of 12+log(O/H) = 7.87 summing over all spaxels in our field of view. An average value of 12+log(O/H) = 7.77 and a difference of {delta}(O/H) = 0.47 between the minimum and maximum values (7.58 {+-} 0.06-8.05 {+-} 0.04) were found, considering all data points where the oxygen abundance was measured. The spatial distribution of oxygen abundance does not show any significant gradient across the galaxy. On the other hand, the bulk of data points are lying in a region of {+-}2{sigma} dispersion (with {sigma} = 0.1 dex) around the average value, confirming that this compact H II galaxy, like other previously studied dwarf irregular galaxies, is chemically homogeneous. Therefore, the new metals processed and injected by the current star formation episode are possibly not observed and reside in the hot gas phase, whereas the metals from previous events are well mixed and homogeneously distributed through the whole extent of the galaxy.

  4. 42 | dec 2014 | north american | SPectrUm.ieee.orG A MetAl MAnicure: the iHY hand picks

    E-print Network

    Haller, Gary L.

    ,DARPAaskedteamstodevelopmulti- fingered robotic hands that could com- plete a variety of tasks, like picking up a telephone handset42 | dec 2014 | north american | SPectrUm.ieee.orG A MetAl MAnicure: the iHY hand picks up a ball flat surfaces and form a cage to hold them. #12;All pHotogrApHs bY iRobot SPectrUm.ieee.orG | north

  5. Imagens do cu ontem e hoje - um multimdia interativo de astronomia e uma nova exposio no MAST

    NASA Astrophysics Data System (ADS)

    Caretta, C. A.; Lima, F. P.; Requeijo, F.; Vieira, G. G.; Alves, F.; Valente, M. E. A.; de Almeida, R.; de Garcia, G. C.; Quixad, A. C.

    2003-08-01

    "Imagens do Cu Ontem e Hoje" o ttulo de uma nova exposio que est sendo inaugurada no Museu de Astronomia e Cincias Afins (MCT), que inclui experimentos interativos, maquetes, rplicas e 8 terminais de computador com um multimdia interativo sobre Astronomia para consulta dos visitantes. O multimdia apresenta um contedo bastante extenso, que engloba quase todos os temas em Astronomia, consistindo numa fonte de divulgao e pesquisa para um pblico que vai das crianas at estudantes universitrios. O contedo est distribudo em mais de 500 pginas de texto divididas em 4 mdulos: "O Universo", "Espectroscopia", "Telescpios" e "Observando o Cu". Cada mdulo subdividido em 5 sees, em mdia, cada uma iniciada por uma animao que ilustra os temas a serem abordados na seo. Ao final da animao, uma lista de temas apresentada sob o ttulo "Saiba Mais". Para exemplificar, o mdulo "O Universo" contm as seguintes sees: "O Universo visto pelo homem", "Conhecendo o Sistema Solar", "Indo alm do Sistema Solar", "Nossa Galxia, a Via-Lctea" e "Indo mais alm, a imensido do Universo". A seo "Conhecendo o Sistema Solar", por sua vez, tem os seguintes temas: "A origem do Sistema Solar", "O Sol", "Os planetas", "Satlites, asterides, cometas e outros bichos..." e "O Sistema Solar em nmeros". Cada texto repleto de imagens, quadros, desenhos, esquemas, etc, alm de passatempos ao final de cada seo, incluindo jogos interativos, quadrinhos e curiosidades, que auxiliam o aprendizado de forma divertida. Apresentamos neste trabalho as idias gerais que permearam a produo da exposio, e uma viagem pelo multimdia para exemplificar sua estrutura e contedo. O multimdia ser posteriormente disponibilizado para o pblico externo pela pgina eletrnica do MAst e/ou por intermdio de uma publicao comercial.

  6. Community Structure and Activity of a Highly Dynamic and Nutrient-Limited Hypersaline Microbial Mat in Um Alhool Sabkha, Qatar

    PubMed Central

    Al-Thani, Roda; Al-Najjar, Mohammad A. A.; Al-Raei, Abdul Munem; Ferdelman, Tim; Thang, Nguyen M.; Shaikh, Ismail Al; Al-Ansi, Mehsin; de Beer, Dirk

    2014-01-01

    The Um Alhool area in Qatar is a dynamic evaporative ecosystem that receives seawater from below as it is surrounded by sand dunes. We investigated the chemical composition, the microbial activity and biodiversity of the four main layers (L1L4) in the photosynthetic mats. Chlorophyll a (Chl a) concentration and distribution (measured by HPLC and hyperspectral imaging, respectively), the phycocyanin distribution (scanned with hyperspectral imaging), oxygenic photosynthesis (determined by microsensor), and the abundance of photosynthetic microorganisms (from 16S and 18S rRNA sequencing) decreased with depth in the euphotic layer (L1). Incident irradiance exponentially attenuated in the same zone reaching 1% at 1.7-mm depth. Proteobacteria dominated all layers of the mat (24%42% of the identified bacteria). Anoxygenic photosynthetic bacteria (dominated by Chloroflexus) were most abundant in the third red layer of the mat (L3), evidenced by the spectral signature of Bacteriochlorophyll as well as by sequencing. The deep, black layer (L4) was dominated by sulfate reducing bacteria belonging to the Deltaproteobacteria, which were responsible for high sulfate reduction rates (measured using 35S tracer). Members of Halobacteria were the dominant Archaea in all layers of the mat (92%97%), whereas Nematodes were the main Eukaryotes (up to 87%). Primary productivity rates of Um Alhool mat were similar to those of other hypersaline microbial mats. However, sulfate reduction rates were relatively low, indicating that oxygenic respiration contributes more to organic material degradation than sulfate reduction, because of bioturbation. Although Um Alhool hypersaline mat is a nutrient-limited ecosystem, it is interestingly dynamic and phylogenetically highly diverse. All its components work in a highly efficient and synchronized way to compensate for the lack of nutrient supply provided during regular inundation periods. PMID:24658360

  7. The U. S. Geological Survey, Digital Spectral Library: Version 1 (0.2 to 3.0um)

    USGS Publications Warehouse

    Clark, Roger N.; Swayze, Gregg A.; Gallagher, Andrea J.; King, Trude V.V.; Calvin, Wendy M.

    1993-01-01

    We have developed a digital reflectance spectral library, with management and spectral analysis software. The library includes 498 spectra of 444 samples (some samples include a series of grain sizes) measured from approximately 0.2 to 3.0 um . The spectral resolution (Full Width Half Maximum) of the reflectance data is <= 4 nm in the visible (0.2-0.8 um) and <= 10 nm in the NIR (0.8-2.35 um). All spectra were corrected to absolute reflectance using an NIST Halon standard. Library management software lets users search on parameters (e.g. chemical formulae, chemical analyses, purity of samples, mineral groups, etc.) as well as spectral features. Minerals from borate, carbonate, chloride, element, halide, hydroxide, nitrate, oxide, phosphate, sulfate, sulfide, sulfosalt, and the silicate (cyclosilicate, inosilicate, nesosilicate, phyllosilicate, sorosilicate, and tectosilicate) classes are represented. X-Ray and chemical analyses are tabulated for many of the entries, and all samples have been evaluated for spectral purity. The library also contains end and intermediate members for the olivine, garnet, scapolite, montmorillonite, muscovite, jarosite, and alunite solid-solution series. We have included representative spectra of H2O ice, kerogen, ammonium-bearing minerals, rare-earth oxides, desert varnish coatings, kaolinite crystallinity series, kaolinite-smectite series, zeolite series, and an extensive evaporite series. Because of the importance of vegetation to climate-change studies we have include 17 spectra of tree leaves, bushes, and grasses. The library and software are available as a series of U.S.G.S. Open File reports. PC user software is available to convert the binary data to ascii files (a separate U.S.G.S. open file report). Additionally, a binary data files are on line at the U.S.G.S. in Denver for anonymous ftp to users on the Internet. The library search software enables a user to search on documentation parameters as well as spectral features. The analysis system includes general spectral analysis routines, plotting packages, radiative transfer software for computing intimate mixtures, routines to derive optical constants from reflectance spectra, tools to analyze spectral features, and the capability to access imaging spectrometer data cubes for spectral analysis. Users may build customized libraries (at specific wavelengths and spectral resolution) for their own instruments using the library software. We are currently extending spectral coverage to 150 um. The libraries (original and convolved) will be made available in the future on a CD-ROM.

  8. Geodesic Bezier Curves: a Tool for Modeling on Triangulations Dimas Martinez Morera Paulo Cezar Carvalho Luiz Velho

    E-print Network

    de Figueiredo, Luiz Henrique

    , Jardim Bot^anico, Rio de Janeiro, RJ. 22460-320 Figure 1. Modeling on the surface of a cow. From left overview of the state of the art of Discrete Geodesic computation and present a simple description

  9. Content-Based Projections for Panoramic Images and Videos Leonardo K. Sacht, Paulo C. Carvalho, Luiz Velho

    E-print Network

    de Figueiredo, Luiz Henrique

    capture FOVs beyond the human eye. Also, a panoramic image allows us to better represent an entire scene capture just a limited field of view (FOV), usually up to 90 degrees, while our eyes see a wider FOV, since there may be important parts in a scene that could not be seen under a limited FOV. B. The Viewing

  10. An Overview on Virtual Sets Antonia Lucinelma Pessoa Albuquerque 1;2 , Jonas Gomes 2 , and Luiz Velho 2

    E-print Network

    de Figueiredo, Luiz Henrique

    of integration. Note that this is distinct from virtual reality or augmented reality applications. In virtual set, there is the possibility of remote operation. Real--time virtual sets is a very recent area in computer graphics, which has

  11. The challenge and scientific application of the CO2 4.3 um atmospheric limb emission of Mars

    NASA Astrophysics Data System (ADS)

    Lopez-Valverde, M. A.; Piccialli, A.; Giuranna, M.; Funke, B.; Lpez-Puertas, M.; Jurado-Navarro, A. A.; Garca-Comas, M.; Gonzlez-Galindo, F.; Lpez-Moreno, J. J.; Jimnez-Monferrer, S.

    2015-10-01

    The atmospheric fluorescent emissions of CO2 at 4.3- um have been observed in the daytime upper atmosphere of Mars from a limb geometry by the instruments OMEGA and PFS on board Mars Express [1, 8]. Initial analysis using non-local thermodynamic equilibrium (NLTE) models show that the emissions are well understood [7, 3, 6]. Yet they have not been exploited to derive important thermospheric parameters, like CO2 densities and temperatures. Our major goals are to improve current NLTE models with a joint study of OMEGA and PFS data, and to build an ambitious state-of-the-art NLTE retreival scheme for Mars. Recent progress has been made in these directions on Mars, Venus and Earth. We will present a summary of these efforts and the difficulties and expectatives for its application to the Mars Express data

  12. Integration of geophysical and geological data for delimitation of mineralized zones in Um Naggat area, Central Eastern Desert, Egypt

    NASA Astrophysics Data System (ADS)

    Gaafar, Ibrahim

    2015-06-01

    An integrated approach for geophysical, geological and mineralogical data was followed for Um Naggat area, Central Eastern Desert, Egypt, in order to delineate its mineralized zones. The albitized granites are well-defined on the Th- and U-channel images, by their anomalous shapes, reaching 150 ppm and 90 ppm respectively, beside low K content. Interpretations of the aeromagnetic maps delineated four regional structural trends oriented due NNW, NW, ENE and E-W directions. They are identified as strike-slip faults, which coincide well with field observations, where NW-trending faults cut and displace right laterally ENE-trending older ones. The interaction between these two strike-slip fault systems confining the albite granite is easily identified on the regional data presenting longer wavelength anomalies, implying deep-seated structures. They could represent potential pathways for migration of enriched mineralized fluids. Geochemically, albite granites of peraluminous characteristics that had suffered extensive post-magmatic metasomatic reworking, resulted into development of (Zr, Hf, Nb, Ta, U, Th, Sn) and albite-enriched and greisenized granite body of about 600 m thick, and more than 3 km in strike length. The albite granite is characterized by sharp increase in average rare metal content: Zr (830 ppm), Hf (51 ppm), Nb (340 ppm), Ta (44 ppm), and U (90 ppm). Thorite, uranothorite, uraninite and zircon are the main uranium-bearing minerals of magmatic origin within the enclosing granite. However, with respect to Zr, Nb, and Ta, the albitized granite can be categorized as rare metal granite. The integration of airborne geophysical (magnetic and ?-ray spectrometric), geological, geochemical and mineralogical data succeeded in assigning the albite granite of Um Naggat pluton as a mineralized zone. This zone is characterized by its high thorium and uranium of hydrothermal origin as indicated by its low Th/U ratio, with rare metals mineralization controlled by two main structural trends in the NW- and ENE-directions.

  13. Attitudes of Psychiatric Nurses about the Request for Euthanasia on the Basis of Unbearable Mental Suffering(UMS)

    PubMed Central

    Wampers, Martien; De Lepeleire, Jan; Correll, Christophe U.

    2015-01-01

    Introduction When psychiatric patients express a wish for euthanasia, this should first and foremost be interpreted as a cry for help. Due to their close day-to-day relationship, psychiatric nurses may play an important and central role in responding to such requests. However, little is known about nurses attitudes towards euthanasia motivated by unbearable mental suffering. Objectives The aim of this study was to provide insight into the attitudes and actions taken by psychiatric nurses when confronted with a patients euthanasia request based on unbearable mental suffering (UMS). Method A questionnaire was sent to 11 psychiatric hospitals in the Flemish part of Belgium. Results The overall response rate was 70% (N = 627). Psychiatric nurses were frequently confronted with a request for euthanasia, either directly (N = 329, 53%) or through a colleague (N = 427, 69%). A majority (N = 536, 84%) did not object to euthanasia in a psychiatrically ill population with UMS. Confounding factors were the psychiatric diagnosis and the type of ward where the nurses were working. Most participants acknowledged a lack of knowledge and skills to adequately address the euthanasia request (N = 434, 71%). Nearly unanimously (N = 618, 99%), study participants indicated that dealing with euthanasia requests and other end-of-life issues should be part of the formal training of nurses. Conclusion The results highlight the need for ethically sound and comprehensive provision of care. Psychiatric nurses play an important role in dealing with the complex issue of requests for euthanasia. There is also a need for education, training and clear guidelines on the level of health care organizations. PMID:26700007

  14. Mental health problems of undocumented migrants (UMs) in the Netherlands: a qualitative exploration of help-seeking behaviour and experiences with primary care

    PubMed Central

    Teunissen, Erik; Sherally, Jamilah; van den Muijsenbergh, Maria; Dowrick, Chris; van Weel-Baumgarten, Evelyn; van Weel, Chris

    2014-01-01

    Objective To explore health-seeking behaviour and experiences of undocumented migrants (UMs) in general practice in relation to mental health problems. Design Qualitative study using semistructured interviews and thematic analysis. Participants 15 UMs in the Netherlands, varying in age, gender, country of origin and education; inclusion until theoretical saturation was reached. Setting 4 cities in the Netherlands. Results UMs consider mental health problems to be directly related to their precarious living conditions. For support, they refer to friends and religion first, the general practitioner (GP) is their last resort. Barriers for seeking help include taboo on mental health problems, lack of knowledge of and trust in GPs competencies regarding mental health and general barriers in accessing healthcare as an UM (lack of knowledge of the right to access healthcare, fear of prosecution, financial constraints and practical difficulties). Once access has been gained, satisfaction with care is high. This is primarily due to the attitude of the GPs and the effectiveness of the treatment. Reasons for dissatisfaction with GP care are an experienced lack of time, lack of personal attention and absence of physical examination. Expectations of the GP vary, medication for mental health problems is not necessarily seen as a good practice. Conclusions UMs often see their precarious living conditions as an important determinant of their mental health; they do not easily seek help for mental health problems and various barriers hamper access to healthcare for them. Rather than for medication, UMs are looking for encouragement and support from their GP. We recommend that barriers experienced in seeking professional care are tackled at an institutional level as well as at the level of GP. PMID:25416057

  15. The c2d Spitzer Spectroscopic Survey of Ices Around Low-Mass Young Stellar Objects: I. H2O and the 5-8 um Bands

    E-print Network

    A. Boogert; K. Pontoppidan; C. Knez; F. Lahuis; J. Kessler-Silacci; E. van Dishoeck; G. Blake; J. Augereau; S. Bisschop; S. Bottinelli; T. Brooke; J. Brown; A. Crapsi; N. Evans II; H. Fraser; V. Geers; T. Huard; J. Jorgensen; K. Oberg; L. Allen; P. Harvey; D. Koerner; L. Mundy; D. Padgett; A. Sargent; K. Stapelfeldt

    2008-01-08

    With the goal to study the physical and chemical evolution of ices in solar-mass systems, a spectral survey is conducted of a sample of 41 low luminosity YSOs using 3-38 um Spitzer and ground-based spectra. The long-known 6.0 and 6.85 um bands are detected toward all sources, with the Class 0-type YSOs showing the deepest bands ever observed. In almost all sources the 6.0 um band is deeper than expected from the bending mode of pure solid H2O. The depth and shape variations of the remaining 5-7 um absorption indicate that it consists of 5 independent components, which, by comparison to laboratory studies, must be from at least 8 different carriers. Simple species are responsible for much of the absorption in the 5-7 um region, at abundances of 1-30% for CH3OH, 3-8% for NH3, 1-5% for HCOOH, ~6% for H2CO, and ~0.3% for HCOO- with respect to solid H2O. The 6.85 um band likely consists of one or two carriers, of which one is less volatile than H2O because its abundance relative to H2O is enhanced at lower H2O/tau_9.7 ratios. It does not survive in the diffuse interstellar medium (ISM), however. The similarity of the 6.85 um bands for YSOs and background stars indicates that its carrier(s) must be formed early in the molecular cloud evolution. If an NH4+ salt is the carrier its abundance with respect to solid H2O is typically 7%, and low temperature acid-base chemistry or cosmic ray induced reactions must have been involved in its formation. Possible origins are discussed for the carrier of an enigmatic, very broad absorption between 5 and 8 um. Finally, all the phenomena observed for ices toward massive YSOs are also observed toward low mass YSOs, indicating that processing of the ices by internal ultraviolet radiation fields is a minor factor in the early chemical evolution of the ices. [abridged

  16. PRIMEIRA LISTA -FI002 -Teorias de Perturbac~ao 1. Uma particula esta aprisionada em um poco de potencial nulo para

    E-print Network

    de Aguiar, Marcus A. M.

    perturbac~ao V (x) = -g(x - L/2). Calcule a correc~ao nos niveis de energia ate segunda ordem no par uma transic~ao para o estado de um eletron no nivel (1s) e outro livre. Aproxime o estado livre por

  17. Technology Development for High-Efficiency Solar Cells and Modules Using Thin (<80 um) Single-Crystal Silicon Wafers Produced by Epitaxy: June 11, 2011 - April 30, 2013

    SciTech Connect

    Ravi, T. S.

    2013-05-01

    Final technical progress report of Crystal Solar subcontract NEU-31-40054-01. The objective of this 18-month program was to demonstrate the viability of high-efficiency thin (less than 80 um) monocrystalline silicon (Si) solar cells and modules with a low-cost epitaxial growth process.

  18. VizieR Online Data Catalog: 70um-1.2mm and N2H+ maps of IRDC18454 (W43) (Beuther+,

    NASA Astrophysics Data System (ADS)

    Beuther, H.; Tackenberg, J.; Linz, H.; Henning, T.; Krause, O.; Ragan, S.; Nielbock, M.; Launhardt, R.; Schmiedeke, A.; Schuller, F.; Carlhoff, P.; Nguyen-Luong, Q.; Sakai, T.

    2011-11-01

    The cloud complex with a size of ~6'x6' was observed with PACS on Herschel on 2010 March 9. Maps at 250, 350, and 500um were obtained with SPIRE 2010) on 2010 March 11. We observed IRDC18454-1 with the Plateau de Bure Interferometer during five nights in October and November 2009 at 93GHz in the C and D configurations. The N2H+ data has been observed using the BEARS receiver at the NRO 45m telescope in Nobeyama, Japan. The different velocity components have been observed one in April 2010 with an average system temperature of Tsys=206K, the second in June, at slightly lower Tsys. The MIPS 24um data (from MIPSGAL) as well as the IRAC 8um observations (from GLIMPSE) are taken from the Spitzer archive. The 1.2mm continuum data were first presented in Beuther et al. (2002, Cat. J/ApJ/566/945) and the APEX 870um data are part of the ATLASGAL survey of the Galactic plane (Schuller et al., 2009A&A...504..415S). (2 data files).

  19. 48 SBA Controle & Automao Vol. 10 no. 01 / Jan., Fev., Mar, Abril de 1999 OTIMIZAO DE UM SISTEMA DE GERAO DE ENERGIA ELICA

    E-print Network

    Simes, Marcelo Godoy

    SISTEMA DE GERAO DE ENERGIA ELICA ATRAVS DE CONTROLE FUZZY M. Godoy Simes, N.N. Franceschetti, Bimal lgica e controle fuzzy visando melhorias no desempenho de um sistema de gerao de energia elica, em paralelizao de sistemas. Esforos governamentais esto incentivando a utilizao de energia gerada de fontes

  20. Instrues de utilizao O badge do Centenrio do IST --que se apresenta e configura como um hyperlink para o respectivo website comemorativo

    E-print Network

    Instituto de Sistemas e Robotica

    como um hyperlink para o respectivo website comemorativo --, ser a forma oficial de associao dos diversos websites dos servios e/ou iniciativas do IST ao mesmo, por forma a assegurar uma consistncia no canto superior direito do website. Assegure-se --atravs do visionamento do cdigo-fonte-- que est

  1. Request for Crystal Structure Determination UM# ________ Peter Y. Zavalij X-ray Crystallographi Center 091 Chemistry Bldg. / College Park, MD 20742

    E-print Network

    Thirumalai, Devarajan

    Request for Crystal Structure Determination UM# ________ Peter Y. Zavalij X-ray Crystallographi/Division: Address: UMD FRS# CreditCard/PO# Expiration date: PI signature: Billing contact: Graphic/Structural formula: Check Preliminary Structure Temp.[-123C] Solvents, Full Structure Determination max 2 [55

  2. The dependence of land-atmosphere interactions on atmospheric parametrizations in the JULES/UM modelling system

    NASA Astrophysics Data System (ADS)

    Johnson, Helen; Best, Martin

    2015-04-01

    It has been understood for a while now that atmospheric behaviour is affected by land surface processes, modelling this relationship however still presents challenges. Most numerical weather prediction (NWP) models couple an atmospheric model to a land surface model in order to forecast the weather and/or climate. The Global Land-Atmosphere Coupling Experiment (GLACE) demonstrated that soil moisture variability has considerable control over atmospheric behaviour, particularly impacting on precipitation and temperature variability. The study also suggested that differences in coupling strengths between models may be due to differences in atmospheric parametrizations. There have since been other studies which support this claim but it is not yet clear which parameters control the land-atmosphere coupling strength or indeed what it should be. In this study we investigate whether certain atmospheric parameters hold more control than others over model sensitivity to land surface changes. We focus on the interaction of the JULES (Joint UK Land Environment Simulator) land surface model with the Met Office Unified Model (UM) that is used for operational NWP and climate prediction. For computational efficiency we ran the UM at a single site using a single column model (SCM) rather than running a global model simulation. A site in the Sahel region of West Africa was chosen as this is an area that was identified by GLACE as being especially responsive to changes in soil moisture. JULES was run several times with various different initial soil moisture profiles to create an ensemble of surface sensible and latent heat fluxes that could be used to force a set of different SCM runs in order to simulate a range of different atmospheric conditions. Various atmospheric parameters in the SCM were then perturbed to create additional sets of SCM runs with different sensitivities to soil moisture changes. By analysing the difference in spread between the standard configuration and the perturbed parameter sets of SCM runs, we gain insight into which atmospheric parameters have the most control over land-atmosphere interactions. The methodology for this experiment shall be introduced and initial results presented. This work is distributed under the Creative Commons Attribution 3.0 Unported License together with an author copyright. This license does not conflict with the regulations of the Crown Copyright.

  3. Protocolo Tolerante a Faltas Bizantinas para Bases de Dados Transacionais

    E-print Network

    Correia, Miguel

    ~oes e um problema bastante discutido na literatura, onde ele e referenciado como confirmac~ao at~ao de novos protocolos para sistemas confiaveis. Na literatura, e encontrado um vasto conjunto de

  4. Calcareous benthonic foraminifera across the Cretaceous/Paleocene transition of Gebel Um El-Ghanayem, Kharga Oasis, Egypt

    NASA Astrophysics Data System (ADS)

    Orabi, Orabi H.; Khalil, Hamza M.

    2014-08-01

    The studies of benthic calcareous foraminifera of the Maastrichtian-early Paleocene Dakhla Formation in Gebel Um El-Ghanayem (Western Desert, Egypt), improve reconstruction of depositional environments of these successions. In total, 68 taxa of benthic foraminifera were identified in the studied succession. The late Maastrichtian assemblages (Zone CF3) are dominated by calcareous foraminifera with tapered tests, this tapered taxon Loxostomum applinae, Lox. tegulatum various dentalinid taxa, and Buliminella cushmani dominate in CF3 Biozone. We thus interpret these faunas as being dominated by infaunal morphogroups, suggesting a moderately eutrophic environment. Danian assemblages are characterized by abundant epifaunal trochospiral species, such as Cibicidoides abudurbensis, Cibicidoides farafraensis, and Gyroidinoides girardanus. The infaunal morphogroups make up 25-47% of fauna in the Danian, in contrast to 62-76% in the Upper Maastrichtian. This dominance of the Danian benthic foraminiferal assemblages by epifaunal or mixed epifaunal/infaunal morphogroups suggests that the food supply to the benthos was less abundant than in the latest Cretaceous. The Cretaceous/Paleocene boundary (K/Pg) is within the upper unit of the Lower Kharga Member and marked by a hiatus in at least the top of CF3 Zone of the Upper Maastrichtian to the Lower Paleocene (base Plc Zone).

  5. Rund um die Wirtschaftswissenschaftliche

    E-print Network

    Rossak, Wilhelm R.

    Governance: Management and Corporate Control / Decision & Risk / Education, Labour Relations and Employment / Strategy, Management and Marketing / Supply Chain Management / Managing International Enterprises BWL fr

  6. YFIRLITSKORT UM BYGGINGUNA

    E-print Network

    Karlsson, Brynjar

    WC M.1.13 M.1.16 3 1 2 4 5 6 7 9 8 10 11 12 13 14 16 18 15 101 102 103 104 105 106 107 108 112 M113 M111 M114 M115 M119 M120 M121 M122 M118 V104 V105 V106 V118 V117 V114 V115 V113 V112 V111 V

  7. NOTAS DISPERSAS SOBRE FILTRAGEM DE KALMAN

    E-print Network

    Ribeiro,Isabel

    . O problema da estima¸c~ao do estado de um Sistema Linear estoc'astico 'e tratado como um problema de (n~ao tratado nestas notas) ?? x(jjk); j = k ­ Filtragem #12; Notas Dispersas sobre Filtragem de

  8. 161. Anthony Skjell um, Lawrence Livermore Nati onal Laboratory, 7000 East Ave. , L-316, P. O. Box 808 Li vermore, CA94551

    E-print Network

    Dongarra, Jack

    , 69364 Lyon cedex 07, France 167. Hank Van der Vorst, Dept. of Techn. Mathemati cs and Computer Sci ence versi ty of Namur, FUNOP, 61 rue de Bruxel l es, B-Namur, Bel gi um 166. Bernard Tourancheau, LIP, ENS-Lyon Rockmont Ci rcl e Boul der, CO80303 180. Mary F. Wheel er, Ri ce Uni versi ty, Department of Mathemati cal

  9. Charged particle detection performances of CMOS pixel sensors produced in a 0.18 um process with a high resistivity epitaxial layer

    E-print Network

    Serhiy Senyukov; Jerome Baudot; Auguste Besson; Gilles Claus; Loic Cousin; Andrei Dorokhov; Wojciech Dulinski; Mathieu Goffe; Christine Hu-Guo; Marc Winter

    2013-03-07

    The apparatus of the ALICE experiment at CERN will be upgraded in 2017/18 during the second long shutdown of the LHC (LS2). A major motivation for this upgrade is to extend the physics reach for charmed and beauty particles down to low transverse momenta. This requires a substantial improvement of the spatial resolution and the data rate capability of the ALICE Inner Tracking System (ITS). To achieve this goal, the new ITS will be equipped with 50 um thin CMOS Pixel Sensors (CPS) covering either the 3 innermost layers or all the 7 layers of the detector. The CPS being developed for the ITS upgrade at IPHC (Strasbourg) is derived from the MIMOSA 28 sensor realised for the STAR-PXL at RHIC in a 0.35 um CMOS process. In order to satisfy the ITS upgrade requirements in terms of readout speed and radiation tolerance, a CMOS process with a reduced feature size and a high resistivity epitaxial layer should be exploited. In this respect, the charged particle detection performance and radiation hardness of the TowerJazz 0.18 um CMOS process were studied with the help of the first prototype chip MIMOSA 32. The beam tests performed with negative pions of 120 GeV/c at the CERN-SPS allowed to measure a signal-to-noise ratio (SNR) for the non-irradiated chip in the range between 22 and 32 depending on the pixel design. The chip irradiated with the combined dose of 1 MRad and 10^13 n_eq/cm^2 was observed to yield a SNR ranging between 11 and 23 for coolant temperatures varying from 15 C to 30 C. These SNR values were measured to result in particle detection efficiencies above 99.5% and 98% before and after irradiation respectively. These satisfactory results allow to validate the TowerJazz 0.18 um CMOS process for the ALICE ITS upgrade.

  10. Explaining the [CII]158um Deficit in Luminous Infrared Galaxies - First Results from a Herschel/PACS Study of the GOALS Sample

    E-print Network

    Diaz-Santos, T; Charmandaris, V; Stierwalt, S; Murphy, E J; Haan, S; Inami, H; Malhotra, S; Meijerink, R; Stacey, G; Petric, A O; Evans, A S; Veilleux, S; van der Werf, P P; Lord, S; Lu, N; Howell, J H; Appleton, P; Mazzarella, J M; Surace, J A; Xu, C K; Schulz, B; Sanders, D B; Bridge, C; Chan, B H P; Frayer, D T; Iwasawa, K; Melbourne, J; Sturm, E

    2013-01-01

    We present the first results of a survey of the [CII]158um emission line in 241 luminous infrared galaxies (LIRGs) comprising the Great Observatories All-sky Survey (GOALS) sample, obtained with the PACS instrument on board Herschel. The [CII] luminosities of the LIRGs in GOALS range from ~10^7 to 2x10^9 Lsun. We find that LIRGs show a tight correlation of [CII]/FIR with far-IR flux density ratios, with a strong negative trend spanning from ~10^-2 to 10^-4, as the average temperature of dust increases. We find correlations between the [CII]/FIR ratio and the strength of the 9.7um silicate absorption feature as well as with the luminosity surface density of the mid-IR emitting region (Sigma_MIR), suggesting that warmer, more compact starbursts have substantially smaller [CII]/FIR ratios. Pure star-forming (SF) LIRGs have a mean [CII]/FIR ~ 4x10^-3, while galaxies with low 6.2um PAH equivalent widths (EWs), indicative of the presence of active galactic nuclei (AGN), span the full range in [CII]/FIR. However, we...

  11. Conv^enio IMPA-Univ. Pierre et Marie Curie (Jussieu, Paris) Foi assinado recentemente um conv^enio entre o IMPA e a Universidade Pierre et Marie Curie

    E-print Network

    Moreira, Carlos Gustavo

    Conv^enio IMPA-Univ. Pierre et Marie Curie (Jussieu, Paris) Foi assinado recentemente um conv^enio entre o IMPA e a Universidade Pierre et Marie Curie (UPMC, Jussieu, Paris). Est~ao previstas atividades

  12. FIS01020 -TERMODIN^AMICA A Lista de problemas 4

    E-print Network

    Arenzon, Jeferson J.

    a equac~ao fundamental na representac~ao de Helmholtz. b) Verifique se a energia livre de Helmholtz eermica para este sistema. 17. Considere a energia livre de Landau G = 1 2 a2 + 1 4 b4 + 1 6 c6 onde c e uma

  13. Algoritmo genetico para o problema de rotas de cobertura multiveiculo

    E-print Network

    Gomes, Francisco A. M.

    boa solu¸c~ao para a dif´icil tarefa de distribui¸c~ao adequada de viaturas. Tais rotas poderiam ser. Para que o tempo computacional na obten¸c~ao de uma boa solu¸c~ao seja satisfat´orio, vamos consi

  14. Busqueda dispersa aplicada al problema del paso de banda

    E-print Network

    Duarte, Abraham

    Estadistica, Universi- dad Rey Juan Carlos, Mostoles, Spain. E-mail: {jesus.sanchezoro,abraham.duarte}@urjc.es 2Dpto. de Estadistica e Investigacion Operativa, Universi- dad de Valencia, Burjassot, Spain. E

  15. I quaderni del Marconi La Biomatematica in un problema

    E-print Network

    Zuccher, Simone

    ;3 Presentazione L'ITIS Marconi stato scelto, per l'a.s. 2005/2006, come scuola Polo per l'attua- zione del Gabriela Freddo Giorgia Marchetto Giacomo Banterle Marco Furlani Dimitri Ruffo Massimiliano Battiston Mattia Gaiga Michele Segna Tommaso Benasi Plinio Longo Marco Scandola Luca Castellani Federico Lorenzi

  16. Tiesioginio matomumo problema enklinant Lietuvos Respublikos valstyb?s sien?

    NASA Astrophysics Data System (ADS)

    Sliien?, Graina

    2009-01-01

    Lietuvos Respublikos valstyb?s sienai, ypa? iorin?s Europos S?jungos sienos daliai, efektyviai apsaugoti ir eksploatuoti svarbu, kad tarp gretim? sienos enkl? b?t? tiesioginis matomumas. Daniausiai matomumas priklauso nuo vietov?s reljefo, atstumo tarp enkl?, augalijos i pasienio juostos paalinimo. Atstumus tarp sienos enkl? lemia delimituotos (redelimituotos) sienos pos?kio ta\\vsk? id?stymas, konkre?ios fizin?s-geografin?s s?lygos, tarpvalstybiniai susitarimai. Lietuva, enklindama valstyb?s sien? su Latvija, Baltarusija ir Lenkija, susid?r? su skirtingais tiesioginio matomumo problemos sprendimo b?dais. Vienu atveju buvo ?rengiami tarpiniai sienos enklai, perkeliami jau ?tvirtinti sienos enklai arba net nukasamos kalv? vir?n?s, kitu atveju - niveliuojamos sienos atkarpos, sudaromi sienos linijos profiliai ir, atsivelgiant ? vietov?s reljef?, projektuojami nauji sienos enklai. Demarkuojant Lietuvos ir Rusijos valstybi? sien?, i patirtis leis pasirinkti racionaliausi? problemos sprendimo b?d?.

  17. Problemas de Topologia. Espacios Metricos: Compacidad. (Hoja 6)

    E-print Network

    Martín Peinador, Elena

    entrelazada como el conjunto R de los reales, dotado de la topolog´ia cuyas bases de entornos (x) en cada metrizables: a) El producto numerable de l´ineas, R , dotado de la topolog´ia de cajas. b) El producto de una cantidad no numerable de l´ineas, Rc dotado de la topolog´ia producto. c) La l´inea de Sorgenfrey. 5. Un

  18. Problemas de topologia. Hoja 7 (Espacios Funcionales) 15-Enero-2007

    E-print Network

    Martín Peinador, Elena

    (X) el mismo espacio dotado de la topolog´ia de la convergencia puntual. Sea Y un subespacio de X, y sea a la topolog´ia son acotadas. 7. Sea C(I, R) el conjunto de las funciones continuas f : I R dotado de intervalo unidad [0, 1] dotado de la topolog´ia usual. Consideremos en II la topolog´ia producto. Estudiar

  19. O Problema do Escalonamento de Enfermeiros Isabel Cardoso dos Santos

    E-print Network

    Soares, João Luís Cardoso

    Departamento de Matemática, Faculadade de Ciências e Tecnologia, Universidade de Coimbra 1 #12;CONTE?DO 2. Actualmente, nas unidades do Hospital Pediátrico do Centro Hospitalar de Coimbra são elaboradas escalas de Universidade de Coimbra, na Unidade de Cirurgia/Queimados do Hospital Pediátrico de Coimbra. Este estágio

  20. Captulo 20 Alguns Problemas Selecionados de Interesse Fsico

    E-print Network

    Barata, João Carlos Alves

    .3.1 A Evolu?c?ao da Temperatura de uma Barra Finita . . . . . . . . . . . . . . . . . . . . . . . . . 894 20.3.2 A Evolu?c?ao da Temperatura de uma Barra Infinita . . . . . . . . . . . . . . . . . . . . . . . . 898 20.3.3 A Evolu?c?ao da Temperatura de uma Barra Semi­Infinita . . . . . . . . . . . . . . . . . . . . . 903 20

  1. Capitulo 20 Alguns Problemas Selecionados de Interesse Fisico

    E-print Network

    Barata, João Carlos Alves

    .3.1 A Evolu¸c~ao da Temperatura de uma Barra Finita . . . . . . . . . . . . . . . . . . . . . . . . . 894 20.3.2 A Evolu¸c~ao da Temperatura de uma Barra Infinita . . . . . . . . . . . . . . . . . . . . . . . . 898 20.3.3 A Evolu¸c~ao da Temperatura de uma Barra Semi-Infinita . . . . . . . . . . . . . . . . . . . . . 903 20

  2. Un Sistema Inmune Artificial para Solucionar Problemas de Optimizacion Multiobjetivo

    E-print Network

    Coello, Carlos A. Coello

    concepto importante es el de optimalidad de Pareto [2], el cual fue propuesto por Vilfredo Pareto [1] en el sigue: Decimos que un punto XW`Y (Y es la zona factible) es un optimo de Pareto si para toda a

  3. 3.6-7.9 um Photometry of L and T Dwarfs and the Prevalence of Vertical Mixing in their Atmospheres

    E-print Network

    S. K. Leggett; D. Saumon; M. S. Marley; T. R. Geballe; D. A. Golimowski; D. Stephens; X. Fan

    2006-10-06

    We present new L' (3.75 um) photometry of six L and T dwarfs, and M' (4.70 um) photometry of ten L and T dwarfs, observed at Gemini Observatory, and new 3.55, 4.49, 5.73 and 7.87 um photometry of nine L and T dwarfs, obtained with the Spitzer Space Telescope. The sample includes unusually blue and red dwarfs from our near-infrared studies. The data are combined with published L', M' and Spitzer photometry of L and T dwarfs, and trends of colors with spectral type and other colors are examined. Model atmospheres by Marley and Saumon are used to generate synthetic colors for ranges of effective temperature, gravity, grain sedimentation efficiency, metallicity and vertical mixing efficiency. We explore how these parameters affect the mid-infrared colors of L and T dwarfs and find that the data are modelled satisfactorily only if substantial vertical mixing occurs in both L- and T-dwarf atmospheres. The location and range of the L and T dwarf sequences in IRAC color-color and color - magnitude diagrams is also only reproduced if this mixing occurs, with a range of efficiency described by K_zz ~ 10^2-10^6 cm^2/s. The colors of the unusually red dwarfs are best reproduced by non-equilibrium models with low sedimentation efficiency, i.e. thick cloud decks, and those of the unusually blue dwarfs by non-equilibrium models with high sedimentation efficiency, i.e. thin cloud decks. The K-L' and Spitzer [3.55]-[4.49] colors can be used as indicators of effective temperature for L and T dwarfs, but care must be taken to include gravity and metallicity effects for late-T dwarfs and vertical mixing for both late-L and T dwarfs.

  4. Vnculos sobre um modelo de quartessncia de Chaplygin usando observaes do satlite chandra da frao de massa de gs em aglomerados de galxias

    NASA Astrophysics Data System (ADS)

    de Souza, R. S.

    2003-08-01

    Observaes de Supernovas do tipo Ia mostram que a expanso do Universo est acelerando. Segundo as equaes de Einstein uma componente com presso negativa (energia escura) necessria para explicar a acelerao csmica. Alm da energia escura usualmente admitido que no Universo h tambm uma matria extica com presso zero, que chamada de matria escura. Essa componente possui um papel fundamental na formao de estruturas no Universo. Recentemente tem se explorado a possibilidade de que matria e energia escura poderiam ser unificadas atravs de uma nica componente, que tem sido denominada de quartessncia. Um exemplo de fluido com essas caractersticas o Gs de Chaplygin Generalizado, que possui uma equao de estado da forma p = -A/ra. Inicialmente consideramos o caso especial a = 1 (gs de Chaplygin) e vinculamos parmetros do modelo utilizando observaes em raios-X do satlite Chandra da frao de massa de gs em aglomerados de galxias. Uma comparao dos vnculos obtidos com esse teste com outros testes, tais como supernovas e idade do Universo, mostra que esse teste bastante restritivo. Exibiremos ainda resultados para o caso em que a curvatura nula e o parmetro a est compreendido no intervalo -1 < a 1.

  5. Motion Cyclification by Time \\Theta Frequency Warping FERNANDO WAGNER DA SILVA 1;2 LUIZ VELHO 1 JONAS GOMES 1 SIOME GOLDENSTEIN 3

    E-print Network

    de Figueiredo, Luiz Henrique

    of articulated figure motion is presented. keywords: motion capture, computer animation, motion processing the overall time and, consequently, cost of the capturing process. Animators should be able to manipulate applications arise from the use of this method. In the entertainment industry, computer games such as FIFA99

  6. Motion Cyclification by Time Frequency Warping FERNANDO WAGNER DA SILVA1 2 LUIZ VELHO1 JONAS GOMES1 SIOME GOLDENSTEIN3

    E-print Network

    de Figueiredo, Luiz Henrique

    is presented. keywords: motion capture, computer animation, motion processing techniques, motion control, consequently, cost of the capturing process. Animators should be able to manipulate and reuse the captured data of this method. In the entertainment industry, computer games such as FIFA99 [33] use cyclification to create

  7. Teaching Computer Graphics in Brazil M. WALTER1, A. FRERY2, CARLA M.D.S. FREITAS3, LEO P. MAGALH ~AES4, LUIZ VELHO5

    E-print Network

    de Figueiredo, Luiz Henrique

    Teaching Computer Graphics in Brazil M. WALTER1, A. FRERY2, CARLA M.D.S. FREITAS3, L´EO P. MAGALH about computer graphics teaching and education in Brazil. We hope this discussion will further The activities related with Computer Graphics Teaching in Brazil have received relatively little attention

  8. User's manual (UM) for the enhanced logistics intratheater support tool (ELIST) software segment version 8.1.0.0 for solaris 7.

    SciTech Connect

    Dritz, K.

    2002-03-06

    This document is the User's Manual (UM) for the Enhanced Logistics Intratheater Support Tool (ELIST) Software Segment. It tells how to use the end-user and administrative features of the segment. The instructions in Sections 4.2.1, 5.3.1, and 5.3.2 for the end-user features (Run ELIST and Run ETEdit) only cover the launching of those features in the DII COE environment; full details on the operation of ELIST and ETEdit in any environment can be found in the documents listed in Section 2.1.3 and referenced elsewhere in this document. On the other hand, complete instructions for the administrative features (Add Map Data and Delete Map Data) are presented in Sections 4.2.2, 5.3.3, and 5.3.4 of this document.

  9. Anlise sobre o Conhecimento de um Grupo de Alunos do Ensino Mdio da Rede Estadual de So Paulo sobre Termos e Fenmenos Astronmicos do Cotidiano

    NASA Astrophysics Data System (ADS)

    de Oliveira, E. F.; Voelzke, M. R.; Amaral, L. H.

    2007-08-01

    Embora os Parmetros Curriculares Nacionais do Ensino Mdio (PCN-EM) e as orientaes complementares a esses Parmetros (PCN+) apontem a importncia de uma abordagem significativa de conceitos relacionados astronomia nas aulas de Fsica, muitos estudantes terminam o Ensino Mdio (EM) sem compreender a razo de certos acontecimentos de origem celeste, ainda que estes faam parte de seu cotidiano. Este trabalho tem por objetivo analisar os conhecimentos bsicos em astronomia dos alunos de EM da escola estadual Batista Renzi, bem como investigar os meios atravs dos quais estes conhecimentos foram adquiridos. Para tanto foi elaborado um questionrio de mltipla escolha aplicado a 310 alunos distribudos entre as trs sries do EM dos perodos matutino e noturno. Dessa forma, observou-se que apenas 34,5% relacionaram as estaes do ano inclinao do eixo de rotao da Terra, 21,3% indicaram a influncia gravitacional da Lua e do Sol como responsveis pelo fenmeno das mars, 24,5% indicaram corretamente quais so os objetos celestes mais prximos da Terra, 36,1% identificaram ano-luz como uma medida de distncia e 34,2% reconheceram uma estrela cadente como meteoro. Em contrapartida, 67,1% compreendiam a sucesso entre dia e noite, 73,9% identificaram o Sol como estrela e 52,3% relacionaram o Big Bang origem do Universo. Alm disso, foram comparadas as respostas de alunos de diferentes sries e perodos, observando-se, dentre outras coisas, que os estudantes do terceiro ano apresentam um percentual de acertos semelhante ao dos alunos do primeiro, caracterizando que a abordagem de tpicos relacionados astronomia no EM no tem contribudo para uma maior compreenso dos fenmenos e conceitos.

  10. Automating the Hunt for Volcanoes on Venus M.C. Burl yz , U.M. Fayyad z , P. Perona y , P. Smyth z , and M.P. Burl z

    E-print Network

    Smyth, Padhraic

    Automating the Hunt for Volcanoes on Venus M.C. Burl yz , U.M. Fayyad z , P. Perona y , P. Smyth z database of Venus. Training for the specific volcano­detection task is obtained by synthesizing feature% of the surface of Venus with synthetic aperture radar (SAR), has provided planetary scientists witha virtual

  11. BEAR BUCKS: Beginning Fall Semester 2013, all students including students on UM Dining Meal Plans, will have access to the Bear Bucks Program. Bear Bucks is a declining balance account offering campus-wide

    E-print Network

    Chu, Xi

    BEAR BUCKS: Beginning Fall Semester 2013, all students including students on UM Dining Meal Plans, will have access to the Bear Bucks Program. Bear Bucks is a declining balance account offering campus-wide dining flexibility. New Bear Bucks accounts can be opened with as little as $20! FEATURES OF BEAR BUCKS

  12. Project UM-HAUL (UnManned Heavy pAyload Unloader and Lander): The design of a reusable lunar lander with an independent cargo unloader

    NASA Technical Reports Server (NTRS)

    1991-01-01

    Project UM-Haul is the preliminary design of a reusable lunar transportation vehicle that travels between a lunar parking orbit and the lunar surface. This vehicle is an indispensible link in the overall task of establishing a lunar base as defined by the NASA Space Exploration Initiative. The response to this need consists of two independent vehicles: a lander and an unloader. The system can navigate and unload itself with a minimum amount of human intervention. The design addresses structural analysis, propulsion, power, controls, communications, payload handling and orbital operations. The Lander has the capacity to decend from low lunar orbit (LLO) to the lunar surface carrying a 7000 kg payload, plus the unloader, plus propellant for ascent to LLO. The Lander employs the Unloader by way of a motorized ramp. The Unloader is a terrain vehicle capable of carrying cargoes of 8,500 kg mass and employs a lift system to lower payloads to the ground. The system can perform ten missions before requiring major servicing.

  13. UM ID NUMBER RSMAS General

    E-print Network

    Miami, University of

    , State, Zip Code City, State, Zip Code ( ) - ( ) - Mobile Phone Fee: OFFICE USE ONLY Hardtop Convertible APPLICATION Campus Address Entered By: Sale Replacement Exchange Payment: Credit Card Check Money Order Other

  14. FSICA MODERNA I -2o SEMESTRE 2008

    E-print Network

    Ribas, Roberto Vicençotto

    vibrando considerada no problema anterior. (b) A partir dessa estimativa, determine a energia do fóton? Qual o valor esperado da energia se é efetuada a medida dessa no instante t=0? 4.- Mostre que um

  15. Universidade de Coimbra Faculdade de Cincias e Tecnologia

    E-print Network

    Grilo, Carlos

    A extraco de padres um problema que se coloca em vrias reas como, por exemplo, a biologia molecular ou Pattern extraction is a problem that occurs in several areas like, for example, molecular biology

  16. Age-related changes in auditory nerve-inner hair cell connections, hair cell numbers, auditory brain stem response and gap detection in UM-HET4 mice.

    PubMed

    Altschuler, R A; Dolan, D F; Halsey, K; Kanicki, A; Deng, N; Martin, C; Eberle, J; Kohrman, D C; Miller, R A; Schacht, J

    2015-04-30

    This study compared the timing of appearance of three components of age-related hearing loss that determine the pattern and severity of presbycusis: the functional and structural pathologies of sensory cells and neurons and changes in gap detection (GD), the latter as an indicator of auditory temporal processing. Using UM-HET4 mice, genetically heterogeneous mice derived from four inbred strains, we studied the integrity of inner and outer hair cells by position along the cochlear spiral, inner hair cell-auditory nerve connections, spiral ganglion neurons (SGN), and determined auditory thresholds, as well as pre-pulse and gap inhibition of the acoustic startle reflex (ASR). Comparisons were made between mice of 5-7, 22-24 and 27-29 months of age. There was individual variability among mice in the onset and extent of age-related auditory pathology. At 22-24 months of age a moderate to large loss of outer hair cells was restricted to the apical third of the cochlea and threshold shifts in the auditory brain stem response were minimal. There was also a large and significant loss of inner hair cell-auditory nerve connections and a significant reduction in GD. The expression of Ntf3 in the cochlea was significantly reduced. At 27-29 months of age there was no further change in the mean number of synaptic connections per inner hair cell or in GD, but a moderate to large loss of outer hair cells was found across all cochlear turns as well as significantly increased ABR threshold shifts at 4, 12, 24 and 48 kHz. A statistical analysis of correlations on an individual animal basis revealed that neither the hair cell loss nor the ABR threshold shifts correlated with loss of GD or with the loss of connections, consistent with independent pathological mechanisms. PMID:25665752

  17. 3D Photography:3D Photography: A Structured Light ApproachA Structured Light Approach

    E-print Network

    de Figueiredo, Luiz Henrique

    3D Photography:3D Photography: A Structured Light ApproachA Structured Light Approach Luiz Velho of 3D PhotographyOverview of 3D Photography Luiz Velho IMPA -Instituto de Matemtica Pura e Aplicada @ Luiz Velho - IMPA SIBGRAPI 2002 5 3D Photography Applications3D Photography Applications The BIG

  18. Computer Animation IMPA Instituto de Matemtica Pura e Aplicada

    E-print Network

    de Figueiredo, Luiz Henrique

    1 Computer Animation Luiz Velho IMPA Instituto de Matemtica Pura e Aplicada Luiz Velho 2 Outline Wireframe Animation Motion Graphics Procedural Animation Motion Capture Facial Animation Ray Tracing Blobby Shapes 3D Cartoon Shading Luiz Velho 3 Wireframe Animation My First Steps

  19. Advancements in the Retrieval of CO2 from an Airborne IM-CW Lidar operating in 1.57-um Region

    NASA Astrophysics Data System (ADS)

    Harrison, F.; Browell, E.; Dobler, J.; Kooi, S.; McGregor, D.; Choi, Y.

    2012-04-01

    Accurate understanding of carbon balance in the environment is critical to projections of the future evolution of the Earth's climate. Uncertainties in the modeling of carbon sources and sinks remain large due to the limited set of observations from the current network of in-situ and surface measurements. Global, spaceborne measurements of atmospheric CO2 can reduce these uncertainties. As a result, the NRC Decadal Survey (DS) of Earth Science and Applications from Space identified Active Sensing of CO2 Emissions over Nights, Days, and Seasons (ASCENDS) as an important mid-term (Tier II) mission. The active space remote measurement of the column CO2 mixing ratio (XCO2) that is called for by the NRC in the ASCENDS mission requires the simultaneous measurement of the CO2 number density column and the O2 number density column to derive the average XCO2 column. The NRC recommendation calls for XCO2 to be measured to a precision of less than 2 ppm and must be made without bias from aerosols, dust, or clouds. This paper discusses the latest flight test results from the Multi-Functional Fiber Laser Lidar (MFLL), a laser absorption spectrometer (LAS) system under developed by ITT Exelis under evaluation by NASA LaRC for the ASCENDS mission. The MFLL is a multi-frequency intensity-modulated continuous-wave (IM-CW) LAS operating near 1.57 um to obtain remote CO2 column measurements. During these tests, encoded modulation techniques for minimizing the impact of thin clouds on CO2 measurements were demonstrated and the MFLL remote CO2 column measurements were evaluated against airborne in situ CO2 profile measurements under a wide variety of surface and atmospheric conditions. This paper describes the modulation techniques employed and presents algorithms minimizing bias from thin clouds on CO2 retrievals. MFLL and in situ CO2 data comparisons are presented and observations of CO2 column enhancements in the Four Corner's power plant plumes and CO2 uptake over the cornfields in Nebraska and Iowa are discussed.

  20. UNIVERSIDADE TCNICA DE LISBOA INSTITUTO SUPERIOR TCNICO

    E-print Network

    Instituto de Sistemas e Robotica

    Viso para Robtica Mvel: Deteco de Obstculos sobre Pavimento Plano Jos Antnio da Cruz Pinto. A hiptese de deslocao do robot sobre um pavimento plano usada explicitamente na caracterizao do problema perceptual. Um obstculo definido como qualquer ponto no pertencente ao plano do pavimento

  1. Optimizac~ao e Algoritmos (2004/2005) Instituto Superior Tecnico Engenharia Electrotecnica e de Computadores

    E-print Network

    Instituto de Sistemas e Robotica

    resolver (1) aproximadamente. Ou seja, basta localizar um ponto "aceitavel". O algoritmo para localizac~ao de pontos aceitaveis (introduzido na serie de problemas anterior) esta reproduzido na tabela 2. 1c~ao de um ponto aceitavel Comentarios: Iremos usar sempre a regra de Wolfe A = { t > 0 : (t) (0

  2. 28 Mdulo do Programa de Aperfeioamento para Professores de Matemtica do Ensino Mdio (PAPMEM) -Parceria UFMG/IMPA

    E-print Network

    Procacci, Aldo

    .sbm.org.br/index.php/temas-e-problemas-elementares.html). O curso gratuito e os candidatos nono anos (7 e 8 sries) do Ensino Fundamental ou licenciados em Matemtica. O curso se realizar em frequentes recebero um certificado de Curso de Atualizao emitido pela Pr-Reitoria de Extenso da UFMG, um

  3. Muchos adolescentes y adultos jvenes supervivientes de cncer tienen problemas crnicos de salud

    Cancer.gov

    Artculo sobre los resultados de un estudio realizado en 2012 que subrayan la importancia de abordar las necesidades especiales e inquietudes de los adolescentes y adultos jvenes supervivientes de cncer.

  4. Para muchos jvenes supervivientes de cncer, los efectos tardos representan problemas duraderos

    Cancer.gov

    Artculo sobre los efectos tardos en la salud que afectan a ciertos adolescentes y adultos jvenes supervivientes de cncer, y la necesidad de aumentar la concientizacin y la vigilancia de estos efectos tardos.

  5. Problema: Merzbacher 18.11 Aplique teoria de perturbao em segunda ordem para o potencial peridico

    E-print Network

    de Aguiar, Marcus A. M.

    exp 2i L x (n - n + mN) dx = + m=- Vm sin ( (n - n + mN)) (n - n + mN) = Vr, em que r = n -n N pois os outros termos so zero. Assim E(2) n = r=0 |Vr| 2 En - En+rN = - mN2 22 2 r=0 |Vr| 2 r (2n + r no subespao degenerado de n (x) e -n (x) se torna ~H = En + Vn,n V-n,n Vn,-n E-n + V-n,-n = En + V0 Vr Vr En

  6. Problema Terico No. 2 XIII Olimpiada Iberoamericana de Fsica, 2008, Morelia, Michoacn, Mxico

    E-print Network

    Rodriguez, Luis F.

    del fotn se ajusta a un cuerpo negro con temperatura T de 2.7 K. La radiacin de cuerpo negro tiene negro de fondo y calcule esta longitud de onda. [0.3 puntos] (I.b) Calcule la energa de un fotn tpico

  7. Colonias: Problems and Promise. Desperate Situations, Local Innovations = Colonias: Problemas y Promesa. Situaciones Dificiles, Innovaciones Locales.

    ERIC Educational Resources Information Center

    Borderlines, 1998

    1998-01-01

    Colonias--unincorporated, low-income settlements endemic to the U.S. borderlands--have inadequate infrastructure and dismal living conditions, but also provide a creative solution to the housing dilemma faced by many border families. Colonias are most common in Texas and New Mexico, primarily as a result of weak rural planning laws, and are

  8. Interpoladores Espaciais para Gerao de Superfcies de Densidade Populacional na Amaznia Brasileira: problemas e perspectivas.

    E-print Network

    Camara, Gilberto

    . QUINTANILHA 2 1 INPE--Instituto Nacional de Pesquisas Espaciais, Caixa Postal 515, 12201-097 So Jos dos density surfaces generation in the Amazonia region. The main problems related to the spatial representation of population distribution over Amazonia are identified. Interpolation methods frequently used

  9. Sistemas de ecuaciones lineales Comenzamos este primer tema con un problema de motivacion.

    E-print Network

    Hurtado, Ana

    de ox´igeno y un 1 por ciento de arg´on. Para poder realizar un experimento en el planeta Marte se forma de rect´angulo, que usualmente se delimitan por medio de par´entesis. Si una matriz tiene n filas

  10. Energy transient growth in the TaylorCouette problema... A lvaro Meseguerb)

    E-print Network

    Meseguer, Alvaro

    Couette problem has been an experimental, theoretical, and numerical benchmark problem for bifurcation termed catastrophic transition, cannot be explained by means of eigenvalue analysis of the linearized

  11. A novel solution to the gated x-ray detector gain droop problema)

    NASA Astrophysics Data System (ADS)

    Oertel, J. A.; Archuleta, T. N.

    2014-11-01

    Microchannel plate (MCP), microstrip transmission line based, gated x-ray detectors used at the premier ICF laser facilities have a drop in gain as a function of mircostrip length that can be greater than 50% over 40 mm. These losses are due to ohmic losses in a microstrip coating that is less than the optimum electrical skin depth. The electrical skin depth for a copper transmission line at 3 GHz is 1.2 ?m while the standard microstrip coating thickness is roughly half a single skin depth. Simply increasing the copper coating thickness would begin filling the MCP pores and limit the number of secondary electrons created in the MCP. The current coating thickness represents a compromise between gain and ohmic loss. We suggest a novel solution to the loss problem by overcoating the copper transmission line with five electrical skin depths (6 ?m) of Beryllium. Beryllium is reasonably transparent to x-rays above 800 eV and would improve the carrier current on the transmission line. The net result should be an optically flat photocathode response with almost no measurable loss in voltage along the transmission line.

  12. Estimacin de pequeas perturbaciones en satlites geocntricos como un problema inverso

    NASA Astrophysics Data System (ADS)

    Zadunaisky, P. E.

    El movimiento geocntrico de un satlite artificial es simulado automticamente por un sistema de ecuaciones diferenciales de segundo orden que incluyen dos funciones perturbadoras. La primera representa el segundo trmino del potencial gravitatorio de la Tierra y la segunda corresponde al frenado atmosfrico. Asumiendo como conocidas, por hiptesis o por mediciones, la posicin y velocidad del satlite en instantes sucesivos se estiman las perturbaciones a intervalos sucesivos por un mtodo determinstico. Para ilustrar el mtodo y comprobar la precisin de nuestros resultados hemos simulado dos ejemplos incluyendo valores conocidos de las perturbaciones que luego comparamos con los resultados de nuestro mtodo. El mtodo puede aplicarse por ejemplo para el intervalo de una revolucin satelital lo cual permitira el diseo inmediato de una maniobra correctiva de la rbita satelital.

  13. Solucion de Problemas y Procesos Cognoscitivos (Problem Solving and Cognitive Processes). Publication No. 41.

    ERIC Educational Resources Information Center

    Rimoldi, Horacio J. A.

    The study of problem solving is made through the analysis of the process that leads to the final answer. The type of information obtained through the study of the process is compared with the information obtained by studying the final answer. The experimental technique used permits to identify the sequence of questions (tactics) that subjects ask

  14. La historia de la Literatura: sus problemas y methodos (The History of Literature: Problems and Methods)

    ERIC Educational Resources Information Center

    Dopico, Blanca

    1975-01-01

    In order to achieve its goals, the study of literary history should follow a "programmed process." Such a process would help solve problems in the following areas: bibliography, text criticism, interpretation and explanation, dates and chronology, authenticity, source and origin etc. (Text is in Spanish.) (DS)

  15. Geometria III, Problemas 7 Segundo semestre, 2009/10. 1. Conteste a los siguientes apartados

    E-print Network

    Guijarro, Luis

    + dz2 y la carta es (U, (x, y, z) = (x, y), donde U = { (x, y, z) : z > 0}. 2. Consideremos el disco). Se llama disco hiperb´olico (o disco de Poincar´e) a la variedad Riemanniana D = (u, v) R2 : u2 + v2 el disco de Poincar´e, y deduzca que es de Killing. 2 #12;

  16. 0.5setgray00.5setgray1 Problemas da Fisica-Matematica

    E-print Network

    Cipolatti, Rolci

    de Saint V´enant ­ p. 6/13 #12;x y z (a) x y z (b) ­ p. 7/13 #12;Módulo de Rigidez à Torção Barra cil;Módulo de Rigidez à Torção Barra cil´idrica circular homog^enea de sec¸~ao reta IR2 : M = 4µ |U(x, y

  17. El Ruido: Un Problema para la Salud (Noise: A Health Problem).

    ERIC Educational Resources Information Center

    Environmental Protection Agency, Washington, DC. Office of Noise Abatement and Control.

    This booklet contains nine sections describing ways in which noise may endanger health and well-being. Sections are included on: (1) hearing loss; (2) heart disease; (3) other reactions by the body; (4) effects on the unborn; (5) special effects on children; (6) intrusion at home and work; (7) mental and social well-being; and (8) danger to life

  18. TERCEIRA PROVA -FI002 1. As componentes E()

    E-print Network

    de Aguiar, Marcus A. M.

    problema anterior com energia positiva e spin +h/2. Aplique uma transformac~ao de Lorentz para um novo. Considere a soluc~ao do problema 2 com energia negativa e spin positivo, R(r, t). (a) Calcule = 2 [R(r, tc~ao representa? Responda essa per- gunta indicando sua energia, spin e direc~ao de propagac~ao. 4 #12;F

  19. 3D FACIAL EXPRESSION ANALYSIS BY USING 2D AND 3D WAVELET TRANSFORMS S. C. D. Pinto1, J. P. Mena-Chalco1, F. M. Lopes1,2, L. Velho3 and R. M. Cesar Junior1

    E-print Network

    de Figueiredo, Luiz Henrique

    3D FACIAL EXPRESSION ANALYSIS BY USING 2D AND 3D WAVELET TRANSFORMS S. C. D. Pinto1, J. P. Mena of Pure and Applied Mathematics, Brazil ABSTRACT This work presents a new approach for the 3D human fa- cial expressions analysis. Our methodology is based on 2D and 3D wavelet transforms, which are used

  20. UmSistema Sistema AnimaoBaseado

    E-print Network

    de Figueiredo, Luiz Henrique

    of information between system's modules. #12; l Basic entities -- virtual actor: skeletal structure. -- motionsCapturado (AMotion Capture BasedAnimation System) (AMotion Capture BasedAnimation System) FernandoWagner Fernando obtained from traditional methods -- a specific approach is required. l Traditional animation systems

  1. Ensino superior perdeu quase um quinto

    E-print Network

    Instituto de Sistemas e Robotica

    , a inteno era pagar as propinas com o dinheiro dos subsdios de frias e de Natal. Como entretanto esse dinheiro foi cortado deixou de ter condies", conta. O presidente do Conselho Coorde- nador dos Institutos

  2. UM Ventures Director November 16, 2012

    E-print Network

    Zeng, Ning

    Development as director of technology and international business, and as executive are writing to inform you of the latest positive development in the University across both institutions. Technology transfer policies and procedures

  3. UM Taubman College Metals Lab Handbook

    E-print Network

    Papalambros, Panos

    of welding technologies including MIG, TIG, stick welding as well as high and low temperature brazing and tool introductions are scheduled at the beginning of each semester. Welding tutorials are provided for unsupervised use. #12;5 Welding Tutorials and Tool Introductions A major goal of the Metals Lab is to empower

  4. UM Space REU Final Report Eric Haengel

    E-print Network

    De Roo, Roger

    Appendix B: RF tone generation and ADC12 code. 8 7 Appendix C: Data collection via arduino. 15 8 Appendix D to resonate in the ISM band. When this resonator is immersed in a dielectric material, the change in resonant microprocessor capable of controlling an ISM band RF transmitter was necessary. After some shopping around

  5. Halema'um'ua Lava Activity

    USGS Multimedia Gallery

    This ponded lava begins to drain away, forming a vortex on the lava surface. The curved streaks around the spattering point at the bottom of the image show where lava is beginning to move in a clockwise direction. ...

  6. The Shadow of a Gnomon Along a Year: Routine Observations and Teaching of Apparent Motion of the Sun and the Four Seasons. (Spanish Title: La Sombra de un Gnomon lo Largo de un Ao: Observaciones de Rutina y la Enseanza del Movimiento Aparente del Sol y Las Cuatro Estaciones.) A Sombra de um Gnmon ao Longo de um Ano: Observaes Rotineiras e o Ensino do Movimento Aparente do Sol E das Quatro Estaes

    NASA Astrophysics Data System (ADS)

    Trogello, Anderson Giovani; Danhoni Neves, Marcos Cesar; de Carvalho Rutz da Silva, Sani

    2013-12-01

    Many misconceptions are recognized among the various groups of students, especially in the elementary school. Among them, the apparent motion of the Sun, in spite of its daily occurrence, is subject to varied interpretations. Thus, the observation and recording of the motion of the stars in the celestial vault is a necessary task for astronomy education. The work presented here proposes the presentation of the results of observations of the apparent movement of the sun by marking the shadow of a vertical gnomon by the students in a class of sixth graders of elementary rural school of Paran. The project itself was conducted in four stages, on dates near the March equinox, the June solstice, the September equinox and the December solstice. In addition, lectures were developed in the classroom. Such methods sought to build concepts around the apparent movement of the Sun and the alternation of the seasons. Given the results of the activities, an evaluation was applied and the data demonstrated a desired student learning such as: the recognition of the cardinal points, the description of the apparent solar motion and the occurrence of the seasons and their alternation from astronomical observations at naked eye. Muchos conceptos aternativos son conocidos entre los distintos grupos de alumnos, sobre todo en la educacin bsica. Entre ellos, el movimiento aparente del Sol, por ms cotidiano que sea, se presta a interpretaciones variadas. Por lo tanto, observar y registrar el movimiento de las estrellas en la bveda celeste se torna una tarea necesaria para la educacin en astronoma. El trabajo que aqu se presenta propone la presentacin de los resultados de la observacin del movimiento aparente del sol a travs de la marcacin de la sombra del gnomon vertical a cargo de los estudiantes en una divisin de sexto grado de de la escuela primaria rural de Paran. El proyecto en s se llev a cabo en cuatro etapas, en fechas cercanas al equinoccio de marzo, al solsticio de junio, al equinoccio de septiembre y al solsticio de diciembre. Adems, se dictaron clases tericas en la sala de aula. Estos mtodos buscaron construir conceptos en torno al movimiento aparente del Sol y la sucesin de las estaciones. Teniendo en cuenta los resultados de las actividades se aplic una evaluacin cuyos datos demuestran la existencia de un aprendizaje deseado por los estudiantes en cuanto a: el reconocimiento de los puntos cardinales, la descripcin del movimiento solar aparente y la aparicin de las estaciones y su alternancia a partir de observaciones astronmicas visuales sin instrumentos. Muitas concepes alternativas so reconhecidas entre os diversos grupos de estudantes, em especial nos da educao bsica. Dentre elas, o movimento aparente do Sol, por mais quotidiano que seja, proporciona variadas interpretaes. Deste modo, observar e registrar o movimento dos astros na abboda celeste uma tarefa necessria ao ensino de Astronomia. O trabalho que ora se apresenta prope a apresentao dos resultados da observao do movimento aparente do Sol por intermdio da marcao da sombra de um gnmon vertical por alunos de uma turma do sexto ano do ensino fundamental de uma escola do campo do Paran. O projeto em si ocorreu em quatro etapas, em datas prximas do equincio de maro, do solstcio de junho, do equincio de setembro e do solstcio de dezembro. Alm disso, foram desenvolvidas aulas tericas em sala de aula. Tais mtodos buscaram construir conceitos em torno da movimentao aparente do Sol e da alternncia das estaes do ano. Diante dos resultados provenientes das atividades desenvolvidas foi aplicada uma avaliao e os dados demonstraram um aprendizado desejado dos alunos quanto: ao reconhecimento dos pontos cardeais; descrio do movimento solar aparente e a ocorrncia das estaes do ano e sua alternncia a partir de observaes astronmicas a olho nu.

  7. Treatment of precious metal bearing recycled materials at UM`s Hoboken smelter

    SciTech Connect

    Vanbellen, F.

    1995-12-31

    In Union Miniere`s Hoboken smelter and refinery for complex non-ferrous materials, the treatment of recycling products, containing precious metals, occupies a dominant place. For all feed materials, the first step, prior to their treatment, is to classify them in order to select an accurate and economical procedure for sampling as well as to dispatch them to the optimal process scheme. More than 150 different procedures for sampling are commonly used. The most important ones are briefly discussed in the paper. Precious metals bearing recycling materials vary widely with respect to their physical aspect, their chemical composition and the value of their precious metal content. All these parameters are taken into consideration to select the most appropriate process among the multiple possibilities of Union Miniere`s flexible integrated flow-sheet. Different stages of the operations as well as the main flow-sheets are described. Specific hydrometallurgical and pyrometallurgical processes have been developed for the extraction and the refining of: precious metals -- Ag, Au, Pt, Pd, Rh; base metals -- Pb, Cu, Sb, Sn, Bi; and special metals -- Se, In, Te.

  8. The Mathematics of Visual Computing

    E-print Network

    de Figueiredo, Luiz Henrique

    Velho 12 Putting it All Together Ex: 3d Object (Diana statue) Shape: Scanned 3D Surface Solid AnimationMotion Analysis Motion Control Video Processing OBS: Dynamic objects t #12;2 Luiz Velho 7 8 Graphical Objects Shape U Geometric Support Properties f Attribute Function o = (U, f

  9. Cultural Heritage ApplicationsCultural Heritage Applications Vision and GraphicsVision and Graphics

    E-print Network

    de Figueiredo, Luiz Henrique

    powerful tools Capture Analysis Archiving 3D artifact Model Results @ Luiz Velho - IMPA XI Congresso Application Dependent Capture Analysis Archiving 3D artifact Model Results #12;@ Luiz Velho - IMPA XI Brasileiro de Arqueologia 2001 8 Case StudiesCase Studies Archeological Excavations GeoScape (MIT Media

  10. The Teaching of Astronomy in Uruguay. (Spanish Title: La Enseanza de la Astronoma en Uruguay.) O Ensino da Astronomia no Uruguai

    NASA Astrophysics Data System (ADS)

    Pintos Gann, Reina; Fernndez, Julio Angel

    2008-07-01

    We present in this work the development of astronomy in Uruguay since the colony times up to the present, stressing in particular those aspects related to the formal as well as informal teaching of astronomy. The first antecedents of astronomical studies in our country go back to the beginnings of the XVIIIth century related to the scientific expeditions from Europe coming to our shores. The teaching of astronomy was generalized at the high school level as soon as the end of the XIXth century, while itsintroduction at the university level happened much later, around the middle of the last century. We analyze the current situation of this subject, its problems, and some measures to strengthen its development. Se presenta en este trabajo el desarrollo de la astronoma en el Uruguay desde la poca colonial hasta el presente, destacando en particular los aspectos vinculados a su enseanza tanto formal como informal. Los primeros antecedentes de estudios astronmicos datan de la poca colonial relacionados con las expediciones cientficas del Viejo Mundo que llegaban a nuestras costas. La enseanza de la Astronoma se generaliz en el mbito de los estudios secundarios ya a fines del siglo XIX, mientras que en la Universidad su arribo fue mucho ms tardo, a mediados del siglo pasado. Se analiza la situacin actual de esta disciplina, sus problemas, y algunas medidas para fortalecer su desarrollo. Apresentamos, neste trabalho, o desenvolvimento da Astronomia no Uruguai desde a poca colonial at o presente, destacando em particular os aspectos vinculados ao seu ensino tanto formal quanto informal. Os primeiros antecedentes de estudos astronmicos em nosso pas datam da poca colonial relacionados com as expedies cientficas do Velho Mundo que chegavam s nossas costas. O ensino da Astronomia se generalizou no mbito dos estudos secundrios j no final do sculo XIX, enquanto que sua introduo na universidade foi muito mais tardia, em meados do sculo passado. Se analisa a situao atual dessa disciplina, seus problemas, e algumas medidas para fortalecer seu desenvolvimento.

  11. Optimizac~ao e Algoritmos (2004/2005) Instituto Superior Tecnico Engenharia Electrotecnica e de Computadores

    E-print Network

    Instituto de Sistemas e Robotica

    ) aproximadamente, ou seja, basta encontrar em R+ = (0, +) um ponto t que seja "aceitavel". O criterio de conjuntos t^em o seguinte significado: o conjunto A e o conjunto dos pontos "aceitaveis"; D e o conjunto [Problema 1(a)] C1 e com (0) aceitavel" no intervalo

  12. 29 Mdulo do Programa de Aperfeioamento para Professores de Matemtica do Ensino Mdio (PAPMEM) -Parceria UFMG/IMPA

    E-print Network

    Procacci, Aldo

    gratuito e os candidatos frequentes recebero um certificado de Curso de Atualizao emitido pela Pr nos oitavo e nono anos (7 e 8 sries) do Ensino Fundamental ou licenciados em Matemtica. O curso se://loja.sbm.org.br/index.php/colecao-do-professor-de-matematica/temas-e- problemas.html). O curso

  13. Lista de problemas da rea I 1. Superfcie e volume no espao de fase: Com as definies usuais de su-

    E-print Network

    Stariolo, Daniel Adrin

    a energia livre, a energia interna, a entropia e a magnetizao por stio m = i i /N, em funo de T e H su- perfcie no espao de fase (E, V, N) e volume (E, V, N), se uma pequena faixa de energias tal qunticos de frequncia . Os 3N osciladores so independentes e a energia total da rede H = h 3N i=1 ni

  14. Temas y problemas del idioma espanol en la prensa (Spanish Language Topics and Problems in the Press).

    ERIC Educational Resources Information Center

    El Brocense; And Others

    1980-01-01

    This section consists of reprints on the following topics: (1) the misuse of "en"; (2) anglicisms; (3) widespread use of vulgar language; (4) an interview with Emilio Criado on Spanish language variation; (5) use of the feminine in professional titles; and (6) Spanish, the national language of Latin American countries. (AMH)

  15. The airbag problema potential culprit for bench-to-bedside translational efforts: relevance for Alzheimers disease

    PubMed Central

    2013-01-01

    For the last 20years, the amyloid cascade hypothesis has dominated research aimed at understanding, preventing, and curing Alzheimers disease (AD). During that time researchers have acquired an enormous amount of data and have been successful, more than 300 times, in curing the disease in animal model systems by treatments aimed at clearing amyloid deposits. However, to date similar strategies have not been successful in human AD patients. Hence, before rushing into further clinical trials with compounds that aim at lowering amyloid-beta (A?) levels in increasingly younger people, it would be of highest priority to re-assess the initial assumption that accumulation of A? in the brain is the primary pathological event driving AD. Here we question this assumption by highlighting experimental evidence in support of the alternative hypothesis suggesting that APP and A? are part of a neuronal stress/injury system, which is up-regulated to counteract inflammation/oxidative stress-associated neurodegeneration that could be triggered by a brain injury, chronic infections, or a systemic disease. In AD, this protective program may be overridden by genetic and other risk factors, or its maintenance may become dysregulated during aging. Here, we provide a hypothetical example of a hypothesis-driven correlation between car accidents and airbag release in analogy to the evolution of the amyloid focus and as a way to offer a potential explanation for the failure of the AD field to translate the success of amyloid-related therapeutic strategies in experimental models to the clinic. PMID:24252346

  16. Aportes del Aprendizaje Basado en Problemas (ABP) en la ensenanza de la Fisiologia Animal en un programa de Zootecnia

    NASA Astrophysics Data System (ADS)

    Reinartz-Estrada, Monica

    Based on difficulties observed on the subject of technical-scientific conceptualization and the integration of theory and practice in learning animal physiology for students in the Animal Science program at the National University of Colombia in Medellin, this research paper proposes a problem-based learning strategy founded on the method of Problem Based Learning (PBL), applied specifically to the issues of thermoregulation and physiological stress in domestic animals. In this case study, a sample size of eight students was presented with a pedagogical problem during the first session that would then be solved during the course. In order to evaluate the process, three surveys were conducted called Level Test Formulations (NF) performed at different times of the trial: one before beginning the topic (NF 1), one after three theoretical classes had been given and before beginning the fieldwork (NF 2), and another one after the end of the process (NF 3). Finally, individual interviews were conducted with each student to know the students' perceptions regarding the method. The information obtained was subjected to a qualitative analysis and categorization, using the QDA Miner program which reviewed and coded texts from the surveys and individual interviews, supplemented in turn, by field observation, analyzing the conceptual change, the theory-practice relationship and the correlation between the variables and categories established. Among the main results obtained, it should be noted that following the implementation of PBL in this Animal Physiology course, support for conceptual change was demonstrated and the formulated problem served as a connector between theory and practice. Moreover, there was a fusion of prior knowledge with newly acquired knowledge, meaningful learning, improvement in the level of conceptualization and an increase in the scientificness of definitions; it also led to problem-solving and overcoming epistemological obstacles such as multidisciplinarity and nonlinearity. As a result of this research, it is recommended that this method be evaluated in other topics related to Animal Physiology, in other sciences, in larger sample sizes, as well as to address the issue of evaluation applied directly to this method. Key words: Problem Based Learning (PBL), conceptual change, integration of theory and practice, significatif learning, animal physiology, thermoregulation, physiological stress.

  17. Problemas de topologia. Hoja 6 1. Sea {Ai; i I} una familia localmente finita de subconjuntos de un espacio topologico

    E-print Network

    Martín Peinador, Elena

    paracompactos: a) El plano de Niemytzki. b) El espacio X = R2 dotado de la topolog´ia , cuya base de entornos en propiedad multiplicativa. 6. Sea S el conjunto de los reales dotado de la topolog´ia cuyos abiertos son los

  18. Decision e Informacion en Solucion de Problemas. Publicacion No. 77 (Information and Decision Making in Problem Solving. Publication No. 77).

    ERIC Educational Resources Information Center

    Rimoldi, Horacio J. A.; And Others

    A technique using information and decision-making theories to evaluate problem solving tactics is presented. In problem solving, the process of solution is evaluated by investigating the questions that the subject doing the problem solving asks. The sequence of questions asked is called a tactic. It is assumed that: (1) tactics are the observable

  19. Examen Final de Bioestadistica (14-09-2002) Puntuacion. 2'5 puntos por cada problema resuelto correcta y completamente.

    E-print Network

    Quirós, Fernando

    (elegidos al azar) de una ciudad con la siguiente distribuci´on, seg´un el grupo sangu´ineo y el factor Rh independencia del factor Rh del grupo sangu´ineo para esta ciudad (al nivel de significaci´on = 0 05)? #12;: O A B AB Rh+ 357 317 81 39 Rh- 96 82 18 10 Seg´un estos datos, ¿puede aceptarse la hip´otesis de

  20. Solar Physics Topics in High School: Analysis of a Course with Practical Activities at Dietrich Schiel Observatory. (Spanish Title: Temas de Fsica Solar Para Estudiantes de Escuelas Secundarias: un Anlisis de un Curso con Enfoque Prctico en el Observatorio Dietrich Schiel.) Tpicos de Fsica Solar no Ensino Mdio: Anlise de um Curso com Atividades Prticas no Observatrio Dietrich Schiel

    NASA Astrophysics Data System (ADS)

    Calbo Aroca, Silvia; Donizete Colombo, Pedro, Jr.; Celestino Silva, Cibelle

    2012-12-01

    This work analyses results obtained in a solar physics course for high school students promoted at the Dietrich Schiel Observatory of the University of So Paulo (USP). The course was elaborated by the authors with the intention of investigating student's concepts about the Sun, teaching topics of modern physics related to the Sun and providing students with knowledge about our star as well. The methodology of data gathering consisted of audio and video records of classes and of semi-structured interviews, and analysis of answers to written questionnaires. The results showed that most high school students conceived the Sun as made of fire, while sunspots were thought to be holes in the Sun. Even though some students did know that a spectrum is formed using a prism or diffraction grating, most of them ignored the nature of the observed spectral lines. Through the course, this topic was developed by means of a practical approach with solar and lamp spectra observations. The results obtained in the course point to the importance of science centers as partners in formal education. In this specific case, the Solar Room at the Dietrich Schiel Observatory is as a favorable environment for teaching modern physics in high school. Este artculo analiza los resultados obtenidos en un curso sobre la fsica solar, auspiciado por el Observatorio Dietrich Schiel de la USP para estudiantes de las escuelas secundarias. El curso fue diseado por los autores con la intencin de investigar las concepciones sobre el sol, ensear temas relacionados con la fsica moderna del Sol y conocimientos generales sobre el astro rey. La metodologa utilizada para la recoleccin de datos consisti en grabar, en audio y video, las clases, las entrevistas semi-estructuradas y las respuestas a los cuestionarios escritos. Los resultados mostraron que la mayora de los participantes conciben el Sol como constituido por fuego y las manchas solares en la superficie solar como agujeros. Aunque algunos estudiantes saban que un espectro puede estar formado por un prisma o red de difraccin, la mayor parte de ellos desconoca la naturaleza de las lneas espectrales. A lo largo del curso, esta cuestin fue trabajada con un enfoque prctico mediante la observacin del espectro solar y de las lmparas durante clases expositivas/dialogadas. Los resultados obtenidos en el curso mustran la importancia de los centros de ciencia como un apoyo en la educacin formal. En este caso en particular, la Sala Solar del Observatorio Dietrich Schiel se destaca como un entorno favorable para la enseanza de la fsica moderna en la escuela secundaria. Este trabalho analisa resultados obtidos em um curso sobre fsica solar para alunos do ensino mdio promovido pelo Observatrio Dietrich Schiel da USP. O curso foi elaborado pelos autores com a inteno de investigar concepes sobre o Sol, ensinar tpicos de fsica moderna relacionados ao Sol e conhecimentos gerais sobre o astro rei. A metodologia de coleta de dados consistiu em gravao em udio e vdeo das aulas e das entrevistas semi-estruturadas, e respostas a questionrios escritos. Os resultados mostraram que a maioria dos participantes concebeu o Sol como constitudo por fogo e as manchas solares como buracos na superfcie solar. Embora alguns alunos soubessem que um espectro pode ser formado por um prisma ou rede de difrao, a maior parte deles desconhecia a natureza das linhas espectrais. Ao longo do curso, este tema foi trabalhado com uma abordagem prtica com observao do espectro solar e de lmpadas e em aulas expositivo-dialogadas. Os resultados obtidos no curso apontam para a importncia dos centros de cincias como parceiros da educao formal. Neste caso especfico, a Sala Solar do Observatrio Dietrich Schiel um ambiente propcio para o ensino de fsica moderna no ensino mdio.

  1. Astronomy Teaching and Teachers Continuing Education: the Interdisciplinarity during a Total Lunar Eclipse. (Spanish Title: Enseanza de la Astronoma y la Formacin Continua de Profesores: la Interdisciplinariedad Durante un Eclipse Total de Luna.) Educao EM Astronomia E Formao Continuada de Professores: a Interdisciplinaridade Durante um Eclipse Lunar TOTAL

    NASA Astrophysics Data System (ADS)

    Langhi, Rodolfo

    2009-07-01

    This paper describes how 67 teachers from 23 cities, could awaken, in students, the scientific interest, using a natural astronomical phenomenon: a total lunar eclipse. Before and after of eclipse, meetings for continuing education were characterized by interdisciplinarity of astronomy and the importance of these observations. Working groups were formed by teachers and students, who organized the survey data, mobilizing the people in their cities. The results point ways about how to provide the scientific culture and the motivation to learn science in students, using approaches between the following communities: scientific, amateur and school. En este artculo se describe cmo 67 profesores de 23 ciudades, despert el inters cientfico en los estudiantes mediante un fenmeno astronmico: un eclipse total de Luna. Antes y despus del eclipse, reuniones para la formacin continua se centraron en la interdisciplinariedad de la astronoma, y la importancia de las observaciones de este tipo de fenmeno. Profesores y estudiantes formaron grupos de trabajo para investigar datos durante el eclipse, con el participacin de la comunidad en sus ciudades. Los resultados apuntan a las opciones que conducen a la cultura cientfica y la motivacin para aprender la ciencia, utilizando las relaciones de los siguientes grupos: cientficos, aficionados y la escuela. Este texto relata como 67 professores, provenientes de 23 cidades, puderam despertar, nos alunos, o interesse cientfico utilizando um fenmeno natural astronmico: um eclipse lunar total. O evento foi precedido e procedido por encontros de formao continuada, onde se caracterizou a interdisciplinaridade da astronomia e a importncia das observaes de fenmenos como estes. Grupos de trabalho foram formados por professores e alunos, que se organizaram para o levantamento conjunto de dados durante o fenmeno, alm do envolvimento da comunidade em suas respectivas cidades. Os resultados apontam para caminhos que podem proporcionar a motivao e a cultura cientfica, atravs de aproximaes entre as comunidades cientfica, amadora e escolar.

  2. Providing Meaningful Learning for Students of the Sixth Grade of Middle School: a Study on the Moon Phases. (Breton Title: Propiciando Aprendizagem Significativa Para Alunos do Sexto Ano do Ensino Fundamental: um Estudo sobre as Fases da Lua.) Propiciando el Aprendizaje Significativo Para Alumnos del Sexto Nivel de la Educacin General Bsica: un Estudio sobre Las Fases de la Luna

    NASA Astrophysics Data System (ADS)

    Darroz, Luiz Marcelo; Samudio Prez, Carlos Ariel; da Rosa, Cleci Werner; Heineck, Renato

    2012-07-01

    We relate in this article a didactic experience studying the moon phases with a group of middle school students of a private school of the municipality of Passo Fundo, RS. Based on David Ausubel's Meaningful Learning Theory, we have sought to develop a proposal following a didactic model which simulates the phases of the Moon, as based on the previous conceptions of the students. The signs of learning were evidenced by means of memory registries of the activity. From the obtained results we believe that the proposal achieved its goals, since the students were able to identify, differentiate and transfer the phenomenon of the moon phases to new contexts. Thus, it is concluded that a methodology focused on a meaningful content for the students is fundamental to the construction and genuine grasping of what is being learned. Neste artigo, relata-se uma experincia didtica de estudo das fases da Lua com uma turma do 6 ano do Ensino Fundamental, de uma escola privada do municpio de Passo Fundo, RS. Tendo como fundamentao terica a Teoria da Aprendizagem Significativa de David Ausubel, buscou-se desenvolver a proposta a partir de um modelo didtico que simula as fases da Lua e com base nas concepes prvias dos estudantes. Os indcios da aprendizagem foram constatados atravs de registros de memrias da atividade. Pelos resultados apresentados, acredita-se que a proposta alcanou seus objetivos, uma vez que os estudantes conseguiram identificar, diferenciar e transferir o fenmeno das fases da Lua para novos contextos. Assim, conclui-se que uma metodologia com enfoque em um contedo significativo ao estudante fundamental para a construo e compreenso genuna do que est sendo aprendido. En este artculo se relata una experiencia didctica de estudio de las fases de la Luna con una clase de 6 ao de la educacin general bsica de una escuela privada del municipio de Passo Fundo, RS. Teniendo como fundamentacin terica la Teora del Aprendizaje Significativo de David Ausubel, se busc desenvolver la propuesta a partir de un modelo didctico que simula las Fases de la Luna, usando como base las concepciones previas de los estudiantes. Los indicios del aprendizaje fueron verificados a travs de registros de memorias de la actividad. Por los resultados obtenidos creemos que la propuesta alcanz sus objetivos, una vez que los estudiantes consiguieron identificar y transferir el fenmeno de las fases de la Luna para nuevos contextos. As, se concluye que una metodologa con enfoque en un contenido significativo para el estudiante es fundamental para la construccin y comprensin genuina de lo que est siendo aprendido.

  3. Approved as UM Policy September 1994 Revised April 2002

    E-print Network

    Thirumalai, Devarajan

    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 MEDICAL CONSULTATION AND EXAMINATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 FIRE EMERGENCY PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix I LAB-SPECIFIC PRIOR APPROVALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix II LAB

  4. um schnelles Rechnen (das Rechnen wollte der kleine

    E-print Network

    Nejdl, Wolfgang

    verblüf- fend zu beobachten, dass die Als der gro?e Mathematiker Carl Friedrich Gau? (1777 ­ 1855) noch ein kleiner Junge war, unterrichtete sein Lehrer Büttner, wie damals üblich, alle Kinder der ersten schon nach kurzer Zeit rief Carl Friedrich: »Da ligget se!« ­ nämlich die Zahl, die Lösung 5050. Dem

  5. Antonia Lucinelma Pessoa Albuquerque Cenarios Virtuais com um Estudo de

    E-print Network

    de Figueiredo, Luiz Henrique

    A maioria das refer^encias usadas neste trabalho, tanto livros quanto artigos, est~ao em ingl^es. Natural- mente, no decorrer dos anos formou-se uma terminologia t´ecnica da ´area, em ingl^es. A traduc¸~ao destes termos para o portugu^es, j´a largamente usados em ingl^es, ao inv´es de contribuir para

  6. UC Davis alUms drive "clean" vehicle breakthroughs

    E-print Network

    California at Davis, University of

    , "to make a car that would drive like all the others on the road, while getting 100 miles to the gallon--for the batteries--was missing; so was the technology for the necessary transmission. So that's where my work went he brought along to UC Davis in 1985. ("A flywheel is essentially a mechanical battery," he explains

  7. Strategien, um sicher ans Ziel zu kommen Orientierung

    E-print Network

    Analysis of Sensations, which was published in 1886, physicist Ernst Mach made the following success by Johannes Muller, has also assumed an al- most exclusively physical character." When Ernst Mach in this issue describe the interplay of such disparate sensory faculties for navigation. Ernst Mach continued

  8. TO: UM/RSMAS Divers FR: Diving Safety Officer

    E-print Network

    Miami, University of

    their expenses in the event of a scuba diving accident requiring Recompression/Hyperbaric Oxygen Therapy to the claims department of your insurance company and be sure to specify "SCUBA diving accidents requiring certify this insurance policy covers Hyperbaric Oxygen Therapy in a recompression chamber for SCUBA diving

  9. Spatial deconvolution of IRAS galaxies at 60 UM

    NASA Technical Reports Server (NTRS)

    Low, Frank J.

    1987-01-01

    Using IRAS in a slow scan observing mode to increase the spatial sampling rate and a deconvolution analysis to increase the spatial resolution, several bright galaxies were resolved at 60 micron. Preliminary results for M 82, NGC 1068, NGC 3079 and NGC 2623 show partially resolved emission from 10 to 26 arcsec., full width at half maximum, and extended emission from 30 to 90 arcsec. from the center. In addition, the interacting system, Arp 82, along with Mark 231 and Arp 220 were studied using the program ADDSCAN to average all available survey mode observations. The Arp 82 system is well resolved after deconvolution and its brighter component is extended; the two most luminous objects are not resolved with an upper limit of 15 arcsec. for Arp 220.

  10. U-M AFRICAN PRESIDENTIAL SCHOLARS PROGRAM RESEARCH SYMPOSIUM II

    E-print Network

    Kamat, Vineet R.

    | RACKHAM ASSEMBLY HALL DETERMINING TRACE ELEMENTS IN IRON ORE BY METHODS OF ICP-MS AND XRD Abstract: CA study of trace element of iron ore samples from Tokada Mines in northeastern Liberia in two acid. The major elements in the iron ore include: Fe, Al, Si, Ti and O. Some traces of V, Ni, Zn, Cu, Co, Mn and Y

  11. Instructions for Completing the Employee Expense Worksheet (UM 1612)

    E-print Network

    Weiblen, George D

    ) 1. Employee ID: Enter the employee ID number. 2. Name: Enter employee's name. 3. Email: Enter the employee's email address. 4. Address: Enter the employee's home address. 5. City/State/Zip: Enter the city, state, and zip of the employee's home address. 6. Travel Destination, Purchase Location: Enter

  12. Um Olhar sobre "Beleza Americana" (A Look at "American Beauty").

    ERIC Educational Resources Information Center

    Bissoto, Maria Luisa

    2000-01-01

    Discusses the film "American Beauty" in light of a reading of Karl Marx. Finds that the film shows the circularity which marks bourgeois society, even though the rhythm of industry and renovation of the society masks it. States that Marx praises the industry, invention, and innovation of the bourgeoisie. (BT)

  13. Procedural and Multiscale Models in Computer Graphics

    E-print Network

    de Figueiredo, Luiz Henrique

    Tracks System Architecture Extension Language Distributed Computation Multiple Windows (X111 Procedural and Multiscale Models in Computer Graphics: a Personal Perspective Luiz Velho IMPA SIBGRAPI So Paulo, Nov 1978 1 SIACG Organized by Industry ACM / SIGGRAPH Local Group Bourne

  14. Learning about the Sky from the Environment: An Experience Working Along One Year with Students of Elementary Education. (Spanish Title: Aprendiendo sobre EL Cielo Desde el Entorno: Una Experiencia Trabajando Durante un Ao Junto a Estudiantes del Primario.) Aprendendo sobre o Cu a Partir do Entorno: Uma Experincia de Trabalho ao Longo de um Ano com Alunos de Ensino Fundamental

    NASA Astrophysics Data System (ADS)

    Longhini, Marcos Daniel; Gomide, Hanny Angeles

    2014-12-01

    Research developed with 95 students of the 6th year of elementary education in a public school of Uberlndia, Minas Gerais. It was a continuous work from February to December 2013, which led the students to participate in activities of observation of the environment, specifically the sky, analyzing the changes occurred. We focused on the study of variations in temperature, rainfall, day length, variations in the size of the shadows and changes in the aspect of the Moon. Our focus of analysis targeted the discussion of the knowledge that these students had about the topics indicated and as they entered the stage during the implementation of the proposal. The results showed a limited perception that students have of their environment, however, lately expanded due to the undertaken activities, especially in relation to the Moon. Working with systematic measure procedures reveals the careful handling of data so that they become understandable to students, and working with the shadows points towards the students first understand how shadows are formed, and then apply this knowledge to Astronomy. Finally, we conclude that the lived process consisted of an initial step of a work that should be encouraged for the subsequent years of training of these students. Proyecto de investigacin desarrollado con 95 alumnos del sexto ao de primaria en una escuela pblica de Uberlndia, Minas Gerais. Fue un trabajo continuo, de febrero a diciembre de 2013, que llev a los estudiantes a participar en actividades de observacin de su entorno, entre ellas, el cielo, analizando los cambios ocurridos. Nos centramos en el estudio de las variaciones en la temperatura, las precipitaciones, la duracin del da, las variaciones en el tamao de las sombras y los cambios en los aspectos de la Luna. Nuestro foco de anlisis se centr en discutir el conocimiento que estos estudiantes tenan sobre los temas indicados al inicio y trmino de la propuesta. Los resultados mostraron una percepcin limitada que los estudiantes tienen de su alrededor la cual, sin embargo, se expandi debido a las actividades llevadas a cabo, sobre todo en relacin con la Luna. Trabajar con medidas sistemticas revela el manejo cuidadoso de los datos para que sean comprensibles para los estudiantes, as como el trabajo con las sombras para que comprendan primero como se forman estas para despus trabajarlas en Astronoma. Por ltimo, llegamos a la conclusin de que el proceso desarrollado consisti en una etapa inicial de una obra que debe ser profundizado en los aos posteriores de la formacin de estos estudiantes. Projeto de pesquisa desenvolvido com 95 alunos do 6 ano do Ensino Fundamental de uma escola pblica estadual de Uberlndia, Minas Gerais. Foi um trabalho contnuo, de fevereiro a dezembro de 2013, o qual levou os alunos a participarem de atividades de observao do entorno, dentre ele, o cu, analisando as mudanas ocorridas. Focamos no estudo das variaes de temperaturas, chuvas, durao do dia, variaes do tamanho das sombras e mudanas nos aspectos da Lua. Nosso foco de anlise centrou-se em discutir os conhecimentos que os referidos alunos tinham acerca dos temas indicados no incio e ao trmino da implementao da proposta. Os resultados mostraram a percepo limitada que os estudantes possuem de seu entorno, todavia, ampliada em funo das atividades desenvolvidas, principalmente no que se refere Lua. O trabalho com medidas sistemticas revela o cuidado no tratamento dos dados para que eles se tornem compreensveis aos alunos, assim como o trabalho com as sombras sinaliza para que os alunos primeiramente compreendam como as sombras so formadas para depois trabalhar isso em Astronomia. Por fim, conclumos que o processo vivido constituiu-se em uma etapa inicial de um trabalho que deve ser estimulado para os anos subsequentes da formao desses alunos.

  15. Astronomy in High School: Using a Mini-Planetarium to Understand Details of the Apparent Movement of Stars. (Spanish Title: Astronoma en la Escuela Secundaria: Comprendiendo los Detalles del Movimiento Aparente de Las Estrellas con un Miniplanetario.) Astronomia no Ensino Mdio: Compreendendo Detalhes do Movimento Aparente das Estrelas com um Miniplanetrio

    NASA Astrophysics Data System (ADS)

    dos Santos Leo, Demetrius

    2013-07-01

    The aim of this article is to present part of the results obtained by the intervention made from the author's Master degree project, which consisted in the development of a set of Astronomy classes for first year of High School students from a private school in the "Distrito Federal", Brasilia, Brazil, making use of a didactical material called mini-planetarium (MP) as the main resource. Using Paulo Freire's contextualization and dialogicity ideas as a theoretical framework guided by these lessons, it was proposed to the students the assembly and application of that resource in a planetarium session. During the project, some subjects such as the apparent trajectory of stars through Brasilia's sky, the location of the cardinal points beginning from the Southern Cross constellation, the color of stars and the stars being seen from a particular place were emphasized. It was found that the students showed an improvement of their understanding about these subjects, as well as a significant excitement with the developed methodology. El objetivo de este trabajo es presentar algunos de los resultados obtenidos en el proyecto de la tesis de maestra del autor, que incluy el desarrollo de algunas clases de Astronoma, con estudiantes del primer ao del bachillerato de una escuela privada del Distrito Federal (Brasilia, Brasil), utilizando como materia prima didctica el recurso llamado miniplanetario (MP). Utilizando como base terica orientadora de esas clases las ideas de contextualizacin y dialgica de Paulo Freire, fue propuesto a los estudiantes el montaje y la utilizacin de este recurso en una funcin de planetario. Durante el proyecto, se enfatizaron asuntos tales como la trayectoria aparente de las estrellas del cielo de Brasilia, la ubicacin de los puntos cardinales a partir de la constelacin de la Cruz del Sur, los colores de las estrellas y las estrellas vistas desde una localidad determinada. Se constat que los estudiantes mostraron una mejora en la comprensin de estas cuestiones y demostraron un gran inters por esta metodologa. O objetivo deste artigo apresentar parte dos resultados obtidos com a interveno feita como projeto da dissertao de mestrado do autor, que consistiu no desenvolvimento de um conjunto de aulas de Astronomia, com alunos do 1 Ano do Ensino Mdio de uma escola da rede privada do Distrito Federal (Braslia, Brasil), empregando como recurso principal um material didtico chamado miniplanetrio (MP). Utilizando como pressuposto terico norteador dessas aulas as ideias de contextualizao e dialogicidade de Paulo Freire, foi proposta aos estudantes a montagem e utilizao desse recurso em uma sesso de planetrio. Durante o projeto, enfatizaram-se assuntos como a trajetria aparente das estrelas para o cu de Braslia, a localizao dos pontos cardeais a partir da constelao do Cruzeiro do Sul, as cores das estrelas e as estrelas vistas de uma determinada localidade. Apurou-se que os alunos apresentaram melhoria na compreenso desses assuntos, bem como demonstraram expressiva empolgao com essa metodologia desenvolvida.

  16. UmUm SistemaSistema dede Animao BaseadoAnimao Baseado emem Movimento CapturadoMovimento Capturado

    E-print Network

    de Figueiredo, Luiz Henrique

    of information between system's modules. #12;q Basic entities virtual actor: skeletal structure. motionsMovimento Capturado (A Motion Capture Based Animation System)(A Motion Capture Based Animation System) Fernando Wagner from traditional methods a specific approach is required. q Traditional animation systems treat

  17. High-resolution superconducting x-ray spectrometers with an active area of 282 um x 282 um

    SciTech Connect

    Mears, C.A.; Labov, S.E.; Frank, M.; Netel, H.; Hiller, L.J.; Lindeman, M.A.; Chow, D.; Barfknecht, A.T.

    1996-09-11

    Superconducting tunnel junctions coupled to superconducting absorbers may be used as high-resolution, high-efficiency X-ray spectrometers. We have tested devices with niobium X-ray absorbing layers coupled to aluminum layers that serve as quasiparticle traps. In this work we measured the current pulses from a large area tunnel junction using an amplifier based on an array of 100 SQUIDs. Using this amplifier and a 282 micron X 282 micron junction, we have measured an energy resolution of 19 eV FWHM for 1.5 keV X rays and 21 eV for 2.6 keV X rays. The area of this junction is eight times the area of any junction previously measured to have such high energy resolution.

  18. Discussions about the Nature of Science in a Course on the History of Astronomy. (Spanish Title: Discusiones sobre la Naturaleza de la Ciencia en un Curso sobre Historia de la Astronoma.) Discusses sobre a Natureza da Cincia em um Curso sobre a Histria da Astronomia

    NASA Astrophysics Data System (ADS)

    Pires de Andrade, Victria Flrio; L'Astorina, Bruno

    2010-07-01

    There are an increasing number of researches in science education that affirm the importance of discussions on the "nature of science" in basic education level as well as in teacher training. The history of science applied to education is a way to contextualize epistemological discussions, allowing both the understanding of scientific content and learning about science concepts. We present some reasonably consensual definitions on the nature of science that have been widely discussed by the academic community. We show also some episodes in the history of astronomy which can lead to discussions involving some aspects of the nature of science, and how they can do it. Hay un nmero creciente de investigaciones en la enseanza de las ciencias que afirman la importancia de debates sobre la "naturaleza de la ciencia" en la educacin bsica y formacin del profesorado. La historia de la ciencia aplicada a la educacin es una manera de contextualizar los debates de la epistemologa, lo que permite tanto la comprensin de los contenidos cientficos como el aprendizaje de conceptos cientficos. En esto trabajo, presentamos algunas definiciones bastante consensuales sobre la naturaleza de la ciencia que han sido ampliamente discutidas por la comunidad acadmica y mostramos cmo algunos episodios en la historia de la astronoma pueden llevar a discusiones sobre algunos aspectos de la naturaleza de la ciencia. H um nmero crescente de pesquisas na rea de ensino de cincias que afirmam a importncia de discusses sobre a "natureza da cincia" na educao bsica e na formao de professores. A histria da cincia aplicada ao ensino uma maneira de contextualizar discusses epistemolgicas, permitindo tanto a compreenso de contedos cientficos quanto o aprendizado de noes sobre as cincias. Neste trabalho apresentamos algumas definies razoavelmente consensuais sobre a natureza da cincia que foram amplamente discutidas pela comunidade acadmica e mostramos como alguns episdios da histria da astronomia podem levar a discusses envolvendo alguns dos aspectos da natureza da cincia.

  19. Festival Report: Festival Internacional de Londrina

    E-print Network

    1990-10-01

    teatral brasileira, que teria na cidade um local de intercmbio e troca de experincias,H ressalta Fernando. Os principais problemas surgidos durante o evento foram todos decorrentes da falta de dinheiro. "O resultado foi bom em detrimento das... condies de trabalho da equipe que produziu o Festival," afirma Maria Fernanda Coelho, chefe da equipe de produo. "Tivemos que trabalhar triplicado para compensar a falta de dinheiro," diz ela. Setenta voluntrios integraram a equipe de produo do...

  20. Astronomical Perception of the Secondary School's Students in So Paulo's State School in Suzano City. (Spanish Title: Percepcin Astronmica de Alumnos de la Enseanza Media de la Red Estatal de San Pablo en la Ciudad de Suzano.) Percepo Astronmica de um Grupo de Alunos do Ensino Mdio da Rede Estadual de So Paulo da Cidade de Suzano

    NASA Astrophysics Data System (ADS)

    Frana de Oliveira, Edilene; Voelzke, Marcos Rincon; Amaral, Luis Henrique

    2007-12-01

    Although Astronomy is one of the oldest Sciences in the world and many of its concepts are popular, it is possible to observe that a major part of the students do not know about them. This work aims to analyse the basic knowledge of the secondary school's students of a state school in the city of Suzano, related to the astronomical phenomena, which surround them. It was carried out a questionnaire of multiple choice to 34 students from the first grade, night classes, of the state school Batista Renzi. From the sample, 34 students, only 29.4% of them could understand the succession of the days; 20.6% could explain the seasons of the year and 20.6% had some idea about celestial objects nearer to the Earth. In turn, 67.6% correctly classified the Sun as a star; 55.9% related the Big Bang to the origin of Universe; only 20.6% identified the light-year as an unit of distance and 32.4% recognized a falling star as a meteor. The actual analysis was expanded to more 310 students of other classes, grades and periods of the same school. In this first stage, it can be noted the students' little discernment of the astronomical events and mainly the great confusion about the appropriate meaning of popular astronomical terms. Aunque la Astronoma es una de las ciencias ms antiguas de la humanidad y muchos de los conceptos astronmicos son populares, se observa que una parcela significativa de los estudiantes se encuentra al margen de estas informaciones. El presente trabajo pretende analizar el nivel de conocimiento bsico de los alumnos de la Enseanza Media de la Red Estatal de la ciudad de Suzano con relacin a los fenmenos astronmicos que los rodean. Con este objetivo fue elaborado un formulario constando de preguntas de seleccin mltipla, aplicado en el primer ao nocturno de la Escuela Estatal Batista Renzi. En un universo de 34 alumnos se constat que solamente 29,4% comprendan la sucesin de los das; 20,6% explicaron correctamente las estaciones del ao y 20,6% tenan la idea de cuales son los objetos celestes ms cercanos de la Tierra. En contraposicin, 67,6% clasificaron correctamente el Sol como una estrella; 55,9% relacionaron el Big Bang al origen del Universo; solamente 20,6% identificaron un ao-luz como unidad de distancia y 32,4% reconocieron una estrella fugaz como meteoro. El presente anlisis fue expandido para otros grupos de la Enseanza Media, no solamente del perodo nocturno, sino tambin diurno de la misma escuela. En esta primera fase se nota el pequeo conocimiento de los alumnos sobre eventos astronmicos y principalmente la gran confusin sobre el significado correcto de los trminos astronmicos populares. Embora a Astronomia seja uma das cincias mais antigas da humanidade e muitos dos conceitos astronmicos serem populares, observa-se que uma parcela significativa dos estudantes encontra-se margem dessas informaes. O presente trabalho visa analisar o nvel de conhecimento bsico dos alunos do Ensino Mdio da Rede Estadual da cidade de Suzano quanto aos fenmenos astronmicos que os rodeiam. Para tanto foi elaborado um formulrio constando de questes de mltipla escolha, aplicado no primeiro ano noturno da Escola Estadual Batista Renzi. Num espao amostral de 34 alunos constatou-se que apenas 29,4% compreendiam a sucesso dos dias; 20,6% explicaram corretamente as estaes do ano e 20,6% tinham idia de quais so os objetos celestes mais prximos da Terra. Em contraposio, 67,6% classificaram corretamente o Sol como estrela; 55,9% relacionaram o Big Bang origem do Universo; apenas 20,6% identificaram um ano-luz como unidade de distncia e 32,4% reconheceram uma estrela cadente como meteoro. A presente anlise foi expandida para mais 310 alunos de outras classes de Ensino Mdio, no somente do perodo noturno, mas tambm diurno da mesma escola. Nesta primeira fase nota-se o pequeno discernimento dos alunos sobre eventos astronmicos e principalmente a grande confuso sobre o significado correto de termos astronmicos populares.

  1. The Practice of Research of a Basic Education Teacher Involving Mental Models of the Phases of the Moon and Eclipses. (Spanish Title: La Prctica de Investigacin de un Maestro de Educacin Bsica con El Uso de los Modelos Mentales de Las Fases de la Luna Y Eclipses.) A Prtica de Pesquisa de um Professor do Ensino Fundamental Envolvendo Modelos Mentais de Fases da Lua e Eclipses

    NASA Astrophysics Data System (ADS)

    Pessa Queiroz, Glria; Jubitipan Borges de Sousa, Carlos; Auxiliadora Delgado Machado, Maria

    2009-12-01

    The inclusion of basic education teachers in the survey domain is a controversial issue and fully debated in the academy. The opportunity for a collective work that incorporated school teachers from a public school to a university's group of physics teaching at university allowed us to glimpse the redefinition of the function of a science teacher (a coauthor of this paper) by himself, such that now he includes research on the knowledge construction by students in his teacher practice. The formation of inter-institutional groups for action planning and research in these areas has proved productive for the task of knowledge construction to support educational processes in school, while the university enriches its collection of experiences critically validated, and can consider the results in teachers initial and continued education. The active participation of the teacher in a research group at the university led him to reflect on the possible didactical ways to be described, analyzed and communicated to other teachers. The construction of a pedagogy that took into account the mental models of students on the basic topics of astronomy, and the changes developed resulting from the lessons taught, led to far-reaching consequences on the pedagogy adopted by the teacher, who incorporates now a new vision of science and alternative forms to dialogue with students, essential components for a researcher in Science Education. La inclusin de los maestros de la escuela bsica en el universo de la investigacin es polmica y est en amplio debate en el mundo acadmico. La oportunidad de trabajo colectivo de los maestros de una escuela pblica en Ro de Janeiro con un grupo universitario de enseanza de la fsica nos ha permitido vislumbrar la redefinicin de la funcin de un maestro de ciencias (uno de los coautores de este documento) por l mismo, ahora para incluir la investigacin sobre la construccin del conocimiento por los alumnos en su prctica como docente. La formacin de grupos interinstitucionales para la planificacin de la accin y la investigacin ha resultado productiva para el trabajo de construccin de conocimiento de apoyo a los procesos educativos en la escuela, mientras que la universidad enriquece su coleccin de experiencias validadas, considerando los resultados de la educacin inicial y continua de maestros. La participacin activa del maestro en un grupo de investigacin en la universidad lo llev a reflexiones sobre los posibles caminos didcticos que pueden ser descriptos, analizados y comunicados a los dems docentes. La construccin de una pedagoga propia, que tuvo en cuenta los modelos mentales de los estudiantes sobre los temas bsicos de astronoma, y los cambios desarrollados a partir de las lecciones que ense, trajeron consecuencias de largo alcance sobre la pedagoga adoptada por el maestro, que ahora incorpora una nueva visin de la ciencia y formas alternativas al dilogo con los estudiantes, los componentes esenciales para un investigador en Educacinen Ciencias. A incluso do professor da escola bsica no universo da pesquisa questo controvertida e em pleno debate no meio acadmico. A oportunidade de trabalho coletivo que incorporou professores de uma escola municipal no Rio de Janeiro a um grupo de ensino de Fsica da universidade nos possibilitou vislumbrar a ressignificao da funo de um professor de Cincias (co-autor deste trabalho) por ele prprio, agora passando a incluir a pesquisa sobre a construo de conhecimento pelos alunos em sua prtica como docente. A formao de grupos interinstitucionais para o planejamento de aes e de pesquisas tem-se mostrado produtiva para um trabalho de construo de conhecimentos a fim de subsidiar processos educativos na escola, ao mesmo tempo em que a universidade enriquece seu acervo de experincias validadas criticamente, podendo considerar seus resultados na formao inicial e continuada de professores. A participao ativa do professor num grupo de pesquisa na universidade o

  2. Datirovka zvezdnogo kataloga Ptolemeya po sobstvennym dvizheniyam: tysyacheletnyaya problema reshena %t Dating Ptolemy's star catalogue based on proper motions: the thousand-year-old problem solved

    NASA Astrophysics Data System (ADS)

    Dambis, A. K.; Efremov, Yu. N.

    The thousand-year-old problem of the origin of the star catalogue included in Ptolemy's "Almagest" is considered. The dilemma whether stellar coordinates were based on Hipparchus' or Ptolemy's observations has arisen long ago, because the 1 degree error in ecliptic longitudes may be explained either by Ptolemy's error in the initial longitudes of the Sun, or by the fact that Ptolemy adopted the original Hipparchus' coordinates and transformed them to a 265-year later epoch using an erroneous constant for precession. In fact, only indirect evidence for the Hipparchan origin of most of the coordinates was available so far, and most specialists considered the issue still to be resolved. We have successfully applied a new approach based on stellar proper motions. The time-dependent mutual distances in the configurations including 8 fast stars yield an epoch of -53 130 B.C., whereas the bulk method based on an analysis of the Almagest minus computed coordinate differences for 40 fastest stars yields an epoch of -90 120 B.C. Standard errors in the ancient ecliptic longitudes and latitudes are found to be ?(?cos?) = 18' and ?? = 13', respectively. It is concluded that the stellar coordinates in the Almagest catalogue were observed during Hipparchus' lifetime and that Ptolemy's authorship claim can be rejected at a 94% significance level. Ptolemy's assertion that "we observed as many stars as we could sight down to the sixth magnitude" might simply imply that he found each star of the original catalogue to be near its position in the sky given by Hipparchus, and then adopted Hipparchus' coordinates as measured by a more skilled observer.

  3. Temas y Problemas del idioma espanol en la prensa: El lenguaje, arma peligrosa (Themes and Problems of the Spanish Language in the Press: Language, a Dangerous Weapon).

    ERIC Educational Resources Information Center

    de Senillosa, Antonio

    1979-01-01

    Discusses the important role that language has in our society and compares human communication to animal group communication. Gives specific examples of corruption in the Spanish language today. (NCR)

  4. "Mastery Learning" Como Metodo Psicoeducativo para Ninos con Problemas Especificos de Aprendizaje. ("Mastery Learning" as a Psychoeducational Method for Children with Specific Learning Problems.)

    ERIC Educational Resources Information Center

    Coya, Liliam de Barbosa; Perez-Coffie, Jorge

    1982-01-01

    "Mastery Learning" was compared with the "conventional" method of teaching reading skills to Puerto Rican children with specific learning disabilities. The "Mastery Learning" group showed significant gains in the cognitive and affective domains. Results suggested Mastery Learning is a more effective method of teaching reading skills to children

  5. Hacia Una Pedagogia de Solucion de Problemas en La Educacion Ambiental. Serie Educacion Ambiental 15 (Pedagogy of Solutions and Problems in Environmental Education. Environmental Education Series 15.

    ERIC Educational Resources Information Center

    United Nations Educational, Scientific, and Cultural Organization, Santiago (Chile). Regional Office for Education in Latin America and the Caribbean.

    This document discusses the teaching of problem solving in environmental education. From an interdisciplinary viewpoint, this study describes some strategies for teaching that can favor the practice of educational activities oriented toward solving the concrete problems of the surrounding environment. The volume is divided into seven chapters. The

  6. EL FINO POLVO, que se pegaba en todo el cuerpo, haba sido un problema durante la ltima parte del largo recorrido, en especial para la seccin de

    E-print Network

    Nacional Autnoma de Mxico, Universidad

    horizonte las montaas de la Sierra de San Luis, en la frontera entre Nuevo Mxico, y Chihuahua y Sonora en Chihuahua y Sonora. La coloracin de los perros lla- neros vara entre pardo amarillento y pardo rojizo, y

  7. Una propuesta para el dise~no de m'etodos de Jacobi unilaterales por bloques para el Problema Sim'etrico de Valores Propios \\Lambda

    E-print Network

    Gimnez, Domingo

    esta secci'on estudiaremos m'etodos de Jacobi bilaterales con el fin de poder compararlos con los trabaja construyendo una secuencia de matrices fA l g por medio de \\Lambda Parcialmente subvencionado por

  8. ANLISE DA INSERO DOS TEMAS DE HUMANIDADES E TICA, COM METODOLOGIA DE APRENDIZAGEM BASEADA EM PROBLEMAS, EM CURRICULO MDICO INTEGRADO EM ESCOLA PBLICA NO DISTRITO FEDERAL, BRASIL

    PubMed Central

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

    2009-01-01

    Objetivo Realizar uma anlise da insero da tica e humanidades no currculo do Curso de Medicina da Escola Superior em Cincias da Sade - ESCS, escola pblica do Distrito Federal, Brasil, de forma a contribuir com o processo de gesto curricular. Metodologia O Estudo de coorte e documental. Foram pesquisados 37 termos relacionados tica e 36 referentes humanizao nos objetivos educacionais e contedo dos mdulos temticos, habilidades e atitudes e interao ensino-servio-comunidade, de 1a a 4a srie e no programa do internato no currculo (ano 2006) e no projeto pedaggico do Curso de Medicina (2001). Resultados Maior insero da humanizao, tica e biotica na 1a e 2a srie, quando comparado insero na 3a e 4a srie e no internato, (IC95%-?=0,034, pvalue=0,007). Unidade de habilidades e atitudes: freqncia das 3 temticas no currculo da 1a a 4a sries (IC95%-?=0,026, pvalue=0,013). Quando comparada a insero entre o internato e as quatro primeiras sries, observa-se que nestas a insero da temtica humanizao superior (IC95%-?=0,042, pvalue=0,029). Concluso O currculo desenvolvido no ano de 2006 na ESCS apresentou correlao com o projeto pedaggico do curso e contemplou a temtica de forma abrangente, em todas as sries e internato. PMID:20396594

  9. Problemas de topologia. (Espacios normales) Hoja 5 1. Probar que la linea de Sorgenfrey Rs es normal, pero Rs Rs no lo es, (por tanto

    E-print Network

    Martín Peinador, Elena

    normal? 9. Se define la linea entrelazada como el conjunto R de los reales, dotado de la topolog siguientes espacios no son metrizables: a) El producto numerable de l´ineas, R , dotado de la topolog´ia de cajas. b) El producto de una cantidad no numerable de l´ineas, Rc dotado de la topolog´ia producto. #12;

  10. Problemas de topologia. Hoja 8 1. Sea X un espacio topologico compacto y T2 y C(X) el conjunto de las funciones

    E-print Network

    Martín Peinador, Elena

    continuas dotado de la topolog´ia uniforme. Probar que todo miembro de C(T, C) puede aproximarse(x) = 0 en I. 1 #12;7. (Del examen de 2007) Sea C(R, R) el espacio de funciones continuas de R en R dotado] dotado de la topolog´ia usual, en s´i mismo. Comparar la topolog´ia de la convergencia puntual con la

  11. PROBLEMAS PARA A AULA PRATICA, SEMANA 14 Exercicio 1. Mostre que a func~ao definida por (u, v) = f(x, y) com

    E-print Network

    Santos, João

    ) = f(x, y) com u = exy + 1 v = exy + y2 possui, numa bola Br(0, 1), uma inversa local de classe C1 . Sendo g(u, v) esta inversa, calcule g2 u no ponto (2, 2). Exerc´icio 2. Mostre que, numa vizinhan¸ca do¸c~oes de x de classe C1 . Calcule dy dx (1) e dz dx (1) Exerc´icio 3. Mostre que o sistema exy - u + log

  12. Passaremos agora ao estudo de sistemas com mais de um grau de liberdade. Existe a um salto qualitativo muito grande devido ao fato de que, em geral, sistemas com mais de um grau de liberdade so

    E-print Network

    de Aguiar, Marcus A. M.

    uma condio inicial ( ) ( ) q R q,0 = , a soluo dessa equao diferencial [22] [ ]dt no tempo t. Os momentos inicial e final so dados por p R q 0 0 = e p q = . Dessa forma, a evoluo do tempo. Solues completas dessa equao diferencial s existem quando o Hamiltoniano integrvel

  13. Comparing the use of 4.6 um lasers versus 10.6 um lasers for mitigating damage site growth on fused silica surfaces

    SciTech Connect

    Yang, S T; Matthews, M J; Elhadj, S; Cooke, D; Guss, G M; Draggoo, V G; Wegner, P J

    2010-10-21

    The advantage of using mid-infrared (IR) 4.6 {micro}m lasers, versus far-infrared 10.6 {micro}m lasers, for mitigating damage growth on fused silica is investigated. In contrast to fused silica's high absorption at 10.6 {micro}m, silica absorption at 4.6 {micro}m is two orders of magnitude less. The much reduced absorption at 4.6 {micro}m enables deep heat penetration into fused silica when it is heated using the mid-IR laser, which in turn leads to more effective mitigation of damage sites with deep cracks. The advantage of using mid-IR versus far-IR laser for damage growth mitigation under non-evaporative condition is quantified by defining a figure of merit (FOM) that relates the crack healing depth to laser power required. Based on our FOM, we show that for damage cracks up to at least 500 {micro}m in depth, mitigation using a 4.6 {micro}m mid-IR laser is more efficient than mitigation using a 10.6 {micro}m far-IR laser.

  14. Representaes Qunticas no Espao de Fases Uma funo de onda abstrata | > um vetor em um espao de Hilbert. Esse vetor pode ser expresso

    E-print Network

    de Aguiar, Marcus A. M.

    espaço de Hilbert. Esse vetor pode ser expresso em termos de uma infinidade de representações ortonormais. Assim nenhuma função das coordenadas (q,p) pode ser definida de forma a ser interpretada como" dado o Princípio da Incerteza. Uma excelente revisão desse formalismo pode ser encontrado em [13,14]. 2

  15. Avda. Teniente Flomesta, 5. Edif. Convalecencia. 30003 Murcia Tfs. 86 888 3695/96 Fax. 86 888 3603 sgeneral@um.es -www.um.es

    E-print Network

    Acacio, Manuel

    ,O=FNMT,C=ES; Cdigo seguro de verificacin: RUxFMo4j-jp4g3GL5-3X9Ih/dx-4fiVqJWv COPIA ELECTRNICA - Pgina 1 de 2 Esta: RUxFMo4j-jp4g3GL5-3X9Ih/dx-4fiVqJWv COPIA ELECTRNICA - Pgina 2 de 2 Esta es una copia autntica

  16. Computao de Superfcies Mnimas Discretas JOO PAULO BENTO

    E-print Network

    de Figueiredo, Luiz Henrique

    energia, além da tensão superficial [Brakke (1992)]. Um método recente para o problema de Plateau foi R 2 ® R 3 a parametrização de uma superfície S = f(W). A área A(f(W)) de S e a energia de Dirichlet+1 ? R 3 superfícies com fronteira G, tais que a energia de Dirichlet de f M : S i ® S i+1 é mínima

  17. Um Modelo de Gest~ao E ciente de Recursos Computacionais Marcos Castilho Renato Carmo

    E-print Network

    Hexsel, Roberto A

    ~ao. A implementa#24;c~ao da solu#24;c~ao exposta, fortemente baseada no uso de Software Livre e no rea compatibilidade, seguran#24;ca, atualiza#24;c~ao, desempenho, etc, que acabam por consumir todas as energias dos

  18. Development of extended red (1.0- to 1.3-um) image intensifiers

    NASA Astrophysics Data System (ADS)

    Estrera, Joseph P.; Sinor, Timothy W.; Passmore, Keith T.; Rector, M. K.

    1995-09-01

    We present the development of extended near infrared based image intensifiers with InGaAs semiconductor and multi-alkali based photocathodes having 1.0-1.3 micrometers and 1.0-1.1 micrometers spectral sensitivities, respectively. For the InGaAs based image intensifiers, we study their material characteristics using transmission, photoluminescence, micro-Raman, and scanning Auger spectroscopies. Direct spectral comparison of the InGaAs image intensifiers are made to standard Generation II and III image intensifiers. Then we study the sealed NEA InGaAs image tube performance parameters such as spectral sensitivity, whitelight photoresponse, equivalent background illumination, signal-to-noise, modulation transfer function, and optical system-image intensifier field performance data. For the multi-alkali based image intensifiers, we present a direct spectral comparison of it to our NEA InGaAs and standard super Gen II image tubes. Finally, we examine the advancement of our near infrared devices into the 1.5-2.0 micrometers spectral regime.

  19. Lamper, Karen Teresa From: UM Research Listserv on behalf of Lamper,

    E-print Network

    Shyu, Mei-Ling

    the George E. Brown, Jr. Network for Earthquake Engineering Simulation (NEES). NEES was established by NSF Coordination Office (NCO), Computational Modeling and Simulation Center (SimCenter), and Post-Disaster, Rapid as a distributed, multi-user, national research infrastructure for earthquake engineering through a facility

  20. Thomas/Fischer 1 UM-96 Using Agents to Improve the

    E-print Network

    Fischer, Gerhard

    of the system. Keywords: intelligent/adaptive user interfaces, information retrieval and information filtering it is located, and how to use the information when it is retrieved. For many computer systems of the WWW will not be realized if users cannot retrieve information easily and efficiently. The principal

  1. 4.13.12 cml UM Electrical Engineering and Computer Science Fall 2012

    E-print Network

    Cafarella, Michael J.

    ): EECS 498-001: Advanced Embedded Systems (4 cr.) Meeting Time: MW 3:00-4:30 Instructor(s): Mark Brehob.umich.edu/eecs/about/articles/Hands-On-Robotics-EECS498-Revzen.pdf Course (Cr Hrs): EECS 598-001: Network Info Theory (3 cr.) Meeting Time: 12 598-002: Power Sys Dynamics and Control (3 cr.) Meeting Time: WF 10:30-12:00 Instructor(s): Ian

  2. 09.06.12 cml UM Electrical Engineering and Computer Science Fall 2012

    E-print Network

    Cafarella, Michael J.

    instructor CS: Upper Level CS Elec. Course (Cr Hrs): EECS 498-001: Advanced Embedded Systems (4 cr.) U.umich.edu/eecs/about/articles/Hands-On-Robotics-EECS498-Revzen.pdf CS: Flex. Tech. Elec. Course (Cr Hrs): EECS 598-001: Network Info Theory (3 cr.) U Dynamics and Control (3 cr.) U/G Requirement: Instructor(s): Ian Hiskens EE: ULEE Elec. Prerequisite

  3. Del Rio, Karen T From: UM Research Listserv on behalf of Del Rio,

    E-print Network

    Shyu, Mei-Ling

    such risks, so this award includes a mentoring component. Potential Scholars should have a promising track that builds stronger theory and empirical evidence in these two areas. We intend for the research we support to inform change. While we do not expect that any one study will create that change, the research should

  4. Lamper, Karen Teresa From: UM Research Listserv on behalf of Lamper,

    E-print Network

    Shyu, Mei-Ling

    -L@LISTSERV.MIAMI.EDU Subject: Internal Competition for NSF, Collections in Support of Biological Research (CSBR): Deadline 7/27/15 The University's internal deadline for the limited submission competition for the National Science Foundation and DNA libraries. Note: In a single round of the CSBR competition, only one proposal may be submitted

  5. VizieR Online Data Catalog: Chamaeleon III 870um sources maps (Belloche+, 2011)

    NASA Astrophysics Data System (ADS)

    Belloche, A.; Parise, B.; Schuller, F.; Andre, P.; Bontemps, S.; Menten, K. M.

    2011-06-01

    The 870 micron dust continuum emission map of the Chamaeleon III molecular cloud displayed in Fig. 2 is available at CDS in FITS format. The data were obtained with the bolometer camera LABOCA at the APEX telescope. They were calibrated, reduced, co-added, gridded, smoothed to an effective angular resolution of 21.2" (FWHM), and written in FITS format with the BoA software. The flux density unit is Jy/21.2"-beam. The coordinates are equatorial (J2000) and the offsets are in RADIO projection. (1 data file).

  6. VizieR Online Data Catalog: Chamaeleon I 870um sources (Belloche+, 2011)

    NASA Astrophysics Data System (ADS)

    Belloche, A.; Schuller, F.; Parise, B.; Andre, P.; Hatchell, J.; Jorgensen, J. K.; Bontemps, S.; Weiss, A.; Menten; K. M.; Muders, D.

    2011-01-01

    Table 2 lists the sources extracted with GAUSSCLUMPS from the filtered 870 micron continuum emission map of Chamaeleon I obtained with the bolometer camera LABOCA at the APEX telescope. These sources are listed in the order in which they were found by GAUSSCLUMPS, i.e. roughly in order of decreasing peak flux density. The 870 micron dust continuum emission map of the Chamaeleon I molecular cloud is available in FITS format. The data were obtained with the bolometer camera LABOCA at the APEX telescope. They were calibrated, reduced, co-added, gridded, smoothed to an effective angular resolution of 21.2" (FWHM), and written in FITS format with the BoA software. The flux density unit is Jy/21.2"-beam. The coordinates are equatorial (J2000) and the offsets are in RADIO projection. (6 data files).

  7. Zum Auf und Ab des Meeresspiegels in Skandinavien: Langer Streit um Eustasie oder Isostasie

    NASA Astrophysics Data System (ADS)

    Seibold, Eugen; Seibold, Ilse

    2012-03-01

    The phenomenon of the rise of the Scandinavian shield during the Holocene and the concomitant fall in level of the Baltic Sea has been investigated for centuries. Already in medieval times, there were reports about the coastlines of the Gulf of Bothnia that are full of relevant observations. During the eighteenth century, scientists such as Celsius and Linnaeus collected observations such as these. The result was that the search for the possible explanations of this rise-and-fall phenomenon intensified. The generally favoured explanation was that there was an active sinking of sea level in the Baltic rather than an active rising of the land surface in Fennoscandia. This was because water was seen as mobile, in contrast to a terra firma". The relevant discussion was often emotional, and here, we try to illustrate it using material from the Geologenarchiv Freiburg (von Hoff, von Buch and Goethe). No more than a few decades later, it became obvious by the theory of Ice Age that both the sea level and the land could be mobile (eustatic sea level changesglacial isostasy). Additionally, of course, plate tectonics had some influence: Norway is situated at the western end of the Eurasian plate and is part of a passive continental margin. There are still open research problems, many of which can be addressed using modern methods of satellite-based geophysics and geodesy. Some other aspects as the permanent uplift trend of Scandinavia since the Cambrium or the rhythmic to and fro of magma in the upper mantle during the Pleistocene are mentioned.

  8. Mix-and-match lithography processes for 0.1-um MOS transistor device fabrication

    NASA Astrophysics Data System (ADS)

    Yew, Jen Y.; Chen, Lih J.; Nakamura, Kazumitsu; Chao, Tien S.; Lin, Horng-Chih

    1996-05-01

    The mix-and-match method is an effective method to meet the requirements of minimizing the exposure time and the feature size, in which only the critical gate layer is exposed by electron beam lithography system, and the other ones by conventional g-line stepper. The negative type chemically amplified resist SAL601, made by Shipley, has been used for gate fabrication. The optimum conditions for the electron beam lithography including mark dimension, resist process and etching process have been investigated. The accelerating voltage and the beam current were fixed to be 40 kV and 0.25 nA, respectively. The mark of the electron beam lithography has the trench cross shape of 0.5 micrometers in depth, 20 micrometers in length and 3 micrometers in width. The sensitivity of SAL601 resist has been 20 (mu) C/cm2 for 0.1 micrometers patterning at 40 kV accelerating voltage. The polysilicon gate was etched by electron cyclotron resonance with SiO2 thin mask in HBr/O2 gas, for the appropriate anisotropy of etching and for the polysilicon-to-oxide selectivity of HBr/O2 gas plasma. The well defined profile of polysilicon gate with 0.1 micrometers width has been obtained successfully.

  9. Eye-safe coherent lidar detection using a 1.5-um Raman laser

    NASA Astrophysics Data System (ADS)

    Monarski, Timothy W.; Hannon, Stephen M.; Gatt, Philip

    2001-09-01

    We present data on a novel short-pulse eyesafe lidar transceiver for utilization in high-resolution heterodyne detection Doppler wind sensing. Operating at 20 Hz, the transmitter is a 1.3 micrometers pumped solid state Raman laser running at 1.556 micrometers , and is injection seeded using a direct diode master oscillator. This system is coupled to a hemispherical scanner to measure atmospheric winds, with the data validated against a commercially-available 2 micrometers lidar system. We typically measured atmospheric returns from greater than 2 km, with range resolution less than 6 m.

  10. Lamper, Karen Teresa From: UM Research Listserv on behalf of Lamper,

    E-print Network

    Shyu, Mei-Ling

    and Engineering (DESE); proposals are encouraged also on any non-DESE interdisciplinary research theme submits only one Traineeship Track proposal, it can be on either DESE or another theme. If an institution submits two Traineeship Track proposals, at least one must be a DESE proposal. In either case (DESE or non-DESE

  11. Molecular interaction between parkin and PINK1 in mammalian neuronal cells Ji Won Um a

    E-print Network

    Lbbert, Hermann

    Available online 8 January 2009 Keywords: Parkinson's disease Parkin PINK1 Lewy bodies Proteasome Parkinson Elsevier Inc. All rights reserved. Introduction Parkinson disease (PD) is a devastating neurodegenerative disease characterized by a distinct set of motor symptoms, including muscle rigidity, tremor, postural

  12. Kinase Reference Description Labeling SiteSequence Torin1 1uM Torin1

    E-print Network

    Sabatini, David M.

    /threonine-protein kinase [Homo sapiens (Human)]Lys2 DLkSNNIFLHEDLTVK3.2 4.9 -15.1 >10 -16.9 15.2 BTK UniRef100_Q06187Tyrosine-protein kinase BTK [Homo sapiens]Activation LoopYVLDDEYTSSVGSkFPVR10.0 5.2 8.8 >10 35.1 -4.5 CaMK1

  13. Lamper, Karen Teresa From: UM Research Listserv on behalf of Lamper,

    E-print Network

    Shyu, Mei-Ling

    , and current protection and prevention measures); (2) appropriate application of controls and worker protection-L@LISTSERV.MIAMI.EDU Subject: Internal Competition for NIEHS, Ebola Biosafety and Infectious Disease Response Training (UH4 for the National Institute of Environmental Health Sciences (NIEHS), Ebola Biosafety and Infectious Disease

  14. Del Rio, Karen T From: UM Research Listserv on behalf of Del Rio,

    E-print Network

    Shyu, Mei-Ling

    healthy choices Housing and Affordability $185,000 prevent homelessness by addressing housing and economic issues create pathways to economic stability for residents who are homeless and lowincome residents atrisk of becoming homeless provide lowincome or homeless residents access to basic needs (food

  15. Teaching Advanced Concepts in Computer Networks: VNUML-UM Virtualization Tool

    ERIC Educational Resources Information Center

    Ruiz-Martinez, A.; Pereniguez-Garcia, F.; Marin-Lopez, R.; Ruiz-Martinez, P. M.; Skarmeta-Gomez, A. F.

    2013-01-01

    In the teaching of computer networks the main problem that arises is the high price and limited number of network devices the students can work with in the laboratories. Nowadays, with virtualization we can overcome this limitation. In this paper, we present a methodology that allows students to learn advanced computer network concepts through

  16. Effect of impurity concentration on 1.54 um emission from GaN:Er

    NASA Astrophysics Data System (ADS)

    Abernathy, Cammy R.; Overberg, Mark J.; Mackenzie, John D.; Hoemmerich, Uwe; Pearton, Stephen J.; Wilson, R. G.; Zavada, John M.

    2000-04-01

    The surface morphology and the room temperature 1.54 micrometers photoluminescence (PL) intensity have been investigated as a function of Er flux in GaN:Er grown by gas source molecular beam epitaxy using below bandgap excitation energy. Unlike AlN, GaN:Er showed improved surface smoothness as evidenced by atomic force microscopy and scanning electron microscopy, with RMS roughness values improving from 18.1 to 2.0 nm as the Er concentration is increased. Similarly the PL emission increased with increasing Er concentration and showed no evidence of saturation or concentration quenching. Even further improvements in 1.54 micrometers PL intensity from GaN:Er have been obtained through the introduction via ion implantation of carbon or oxygen, with carbon appearing to produce the greatest increase. Increasing the C concentration through the use of CBr4 during growth initially improved the surface smoothness, with RMS roughness improving by a factor of seven over undoped GaN. The PL also improved dramatically. However, the highest amounts of C investigated produced a decrease in the PL as well as a roughening of the film surface. These effects indicate that the GaN:Er had reached its C solubility limit, producing an increased amount of defect induced nonradiative recombination.

  17. Lamper, Karen Teresa From: UM Research Listserv on behalf of Lamper,

    E-print Network

    Shyu, Mei-Ling

    and non-allergic), chronic rhinosinusitis, atopic dermatitis, food allergy, and drug allergy Institute of Allergy and Infectious Diseases (NIAID), Asthma and Allergic Diseases Cooperative Research. The program will support centers that integrate clinical and basic research to conduct studies

  18. Modelling Expectation in the Self-Repair Processing of Annotat-, um, Listeners

    E-print Network

    Purver, Matthew

    Queen Mary University of London {j.hough,m.purver}@qmul.ac.uk Abstract This paper describes ] repair Mary continuation In addition to this structural vocabulary, from here on we consider the repair parallelism. The interpretation of self-repairs by both an- notators assigning bracketing on transcripts

  19. 30 | dec 2014 | north american | SPectrUm.ieee.orG DEstruCtion

    E-print Network

    Cortes, Corinna

    , and solar thermal power systems, which capture the sun's energy as heat. For us, designing and building- mistic assumptions about cost reductions in solar power, wind power, energy stor- age, and electricR&D.Itsaspirationalgoal:toproduce a gigawatt of renewable power more cheaply than a coal-fired plant could, and to achieve this in years

  20. Robust and fast OPC approach for metal interconnects of 0.13um logic devices

    NASA Astrophysics Data System (ADS)

    Park, Ji-Soong; Kim, Dong-Hyun; Park, Chul-Hong; Kim, Yoo-Hyon; Yoo, Moon-Hyun; Kong, Jeong-Taek; Kim, Hyun-Woo; Yoo, Sun-Il

    2002-03-01

    Insufficient metal overlaps over contacts and/or vias impact serious yield loss especially in the borderless-contact- style random logic devices. Vias which are not fully covered by interconnects cause not only the functional error due to the high via resistance but also the reliability problem such as electro migration. It is not sufficient to compensate only optical proximity effects such as line-end shortening and corner rounding for the overlap margin. Since mis-alignment between interconnects and over/underlying features is not negligible even using an advanced alignment system of step and scanner. Therefore, the need for aggressive OPC is increased to cope with the proximity effect and overlay error in metal interconnects. The proposed OPC approach gives a robust metal overlap with fast runtime and allowable data complexity by selective correction for the improperly overlapped contacts and vias. Experimental results for the test design show that the correction time of the metal interconnects takes 11 hours at HP5600 system by applying the proposed correction algorithm.

  1. Mec^anica Estatistica Lista 1 1. Considere um modelo de N ions magne-

    E-print Network

    Levin, Yan

    iveis para uma dada energia E. (b) Calcule a entropia por particula. (c) Calcule o calor especifico poriculas que podem ser encontradas em dois estados com energia 0 ou . Calcule: (a) (E, N). (b) A entropia s(u). (c) A temperatura T(u). (d) A energia u(T). (e) Para uma dada temperatura T, qual frac~ao de part

  2. Mec^anica Estatistica Lista 2 1. Considere um modelo de N ions magne-

    E-print Network

    Levin, Yan

    iveis para uma dada energia E. (b) Calcule a entropia por particula. (c) Calcule o calor especifico poriculas que podem ser encontradas em dois estados com energia 0 ou . Calcule: (a) (E, N). (b) A entropia s(u). (c) A temperatura T(u). (d) A energia u(T). (e) Para uma dada tem- peratura T, qual frac~ao de part

  3. Synchronous and asynchronous multiplexer circuits for medical imaging realized in CMOS 0.18um technology

    NASA Astrophysics Data System (ADS)

    D?ugosz, R.; Iniewski, K.

    2007-05-01

    Multiplexers are one of the most important elements in readout front-end ASICs for multi-element detectors in medical imaging. The purpose of these ASICs is to detect signals appearing randomly in many channels and to collect the detected data in an ordered fashion (de-randomization) in order to send it to an external ADC. ASIC output stage functionality can be divided into two: pulse detection and multiplexing. The pulse detection block is responsible for detecting maximum values of signals arriving from the shaper, sending a flag signal indicating that the peak signal has been detected and storing the pulse in an analog memory until read by ADC. The multiplexer in turn is responsible for searching for active flags, controlling the channel that has detected the peak signal and performing reset functions after readout. There are several types of multiplexers proposed in this paper, which can be divided into several classes: synchronous, synchronized and asynchronous. Synchronous circuits require availability of the multiphase clock generator, which increases the power dissipation, but simultaneously provide very convenient mechanism that enables unambiguous choice of the active channel. This characteristics leads to 100% effectiveness in data processing and no data loss. Asynchronous multiplexers do not require clock generators and because of that have simpler structure, are faster and more power efficient, especially when data samples occur seldom at the ASIC's inputs. The main problem of the asynchronous solution is when data on two or more inputs occur almost at the same time, shorter than the multiplexer's reaction time. In this situation some data can be lost. In many applications loss of the order of 1% of the data is acceptable, which makes use of asynchronous multiplexers possible. For applications when the lower loss is desirable a new hierarchy mechanism has been introduced. One of proposed solutions is a synchronized binary tree structure, that uses many simple asynchronous clock generators. This circuit joins advantages of synchronous and asynchronous solutions resulting in low power dissipation, high speed of operation and 100% effectiveness.

  4. LASER-UND QUANTENOPTIKSEMINAR Freitag, 06.02.2015, um 10:00 Uhr

    E-print Network

    Kaus, Boris

    of artificial micro- and nano- structures with unique magnetic configurations. To this end, by engineering Institute for Integrative Nanosciences, IFW Dresden Curved magnetic nanomembranes Fundamental and applied aspects of magnetism on curved surfaces will be presented with emphasize on the design and understanding

  5. UM-HSRI-BI-75-5 FINAL REPORT MAY 31, 1975

    E-print Network

    of a three-year study designed t o collect analyze, and reduce selected anthropometric data on 4027 infants data was recorded automatically by a portable NOVA 1220 mini-computer system. Center of gravity i n diameters, hand clearance, and grip size dimensions. Data are presented i n both tabular and graphical

  6. Educacao Fisica Escolar: A Construcao de um Conceito (School Physical Education: The Construction of a Concept).

    ERIC Educational Resources Information Center

    Colpas, Ricardo Ducatti

    2000-01-01

    Seeks to understand school physical education praxis in light of the human development theories of Lev Vygotsky. Develops a methodology of teaching and a conception of learning that enables students to recognize physical education as a school discipline connected to a dynamic curriculum. (BT)

  7. Mezi folklorem a um?nm, mezi zem?mi a existenc

    E-print Network

    Pavera, Libor

    2009-01-01

    najdeme nejvrazn?ji zastoupeny u F. L. ?elakovskho (Ohlas psn ruskch, 1829; Ohlas psn ?eskch, 1839), K. S. najdra, J. V. Kamarta, J. K. Chmelenskho nebo V. J. Picka-Podsvijanskho, kte? byli v podstat? epigony ohlasov tvorby ?elakovskho. V... najdeme nejvrazn?ji zastoupeny u F. L. ?elakovskho (Ohlas psn ruskch, 1829; Ohlas psn ?eskch, 1839), K. S. najdra, J. V. Kamarta, J. K. Chmelenskho nebo V. J. Picka-Podsvijanskho, kte? byli v podstat? epigony ohlasov tvorby ?elakovskho. V...

  8. Tipps und Infos rund ums Studium Wo geht`s lang?

    E-print Network

    Berlin,Technische Universitt

    Beratung: Mo 9.30 - 12.30 Uhr Di - 14.00 - 18.00 Uhr Mi - - Do 9.30 - 12.30 Uhr 14.00 - 16.00 Uhr Fr 9 Sprechzeit: Mo - Do 9.00 - 17.00 Uhr Fr 9.00 - 14.00 Uhr telefonservice@tu-berlin.de Psychologische Beratung Sprechstunde: Di 15.00 - 17.00 Uhr Do 10.30 - 12.30 Uhr Telefonische Sprechzeiten: Mo, Mi, Do 14.00 - 14.30 Uhr

  9. The impact of atmospheric waves on the O2 1.27-um nightglow distribution

    NASA Astrophysics Data System (ADS)

    Hoshino, Naoya; Fujiwara, Hitoshi; Takagi, Masahiro; Kasaba, Yasumasa; Takahashi, Yukihiro

    O2 -1.27m nightglow is the indicator of the general circulation at about 95 km in Venus. Recent nightglow observations reported that the nightglow emission showed the temporal variations with a timescale of a few hours and days [e.g.,Gerard et al., 2008]. The temporal variations are thought to be caused by wind fluctuations due to atmospheric waves propagating from the lower atmosphere. In recent years, the importance of planetary-scale waves on the general circulation of the Venusian atmosphere has been recognized. Forbes and Konopliv [2007] suggested the propagation of planetary-scale waves originated in the cloud deck into the upper atmosphere. However, the impact of the planetary-scale waves on the Venusian upper atmosphere has not been investigated yet. In this study, we have performed numerical simulations with a general circulation model (GCM), which includes the altitude region of 80 -about 200 km in order to understand the impact of atmospheric waves on the nightglow distribution. Our model considers the chemical processes and calculates the O2 -1.27m nightglow intensity. The planetary-scale waves (thermal tides, Kelvin wave, and Rosbby wave) are imposed at the lower boundary. The amplitudes and phase velocities of the waves are assumed from the study by Del Genio and Rossow [1990]. The simulation results show dominance of the Kelvin wave at about 80 -120 km with a vertical wavelength of about 40 -50 km. The amplitude of the zonal wind fluctuation caused by the Kelvin wave has a maximum value of about 9 m/s at about 95 km. Our results suggest that the Kelvin wave would cause the wind variation of the nightglow emission region between the 00:00LT -00:40LT with a period of 4 days. In this presentation, we will show the details of our simulation results considering the planetary-scale waves. In addition, we will present the initial results of a simulation considering the small-scale gravity wave.

  10. Com criatividade e alguns conhecimentos, j possvel criar um aparelho eletrnico

    E-print Network

    Instituto de Sistemas e Robotica

    as informaes pretendidas. A primeira placa eletrnica sobre a qual se debruaram foi o Arduino, tendo sido desenho prprio mas inspirado no Arduino, que superava os constrangimen- tos encontrados. Nascia o Bl Arduino, o facto de poder adquirir sinais mltiplos sem grandes complicaes, graas a uma eficaz

  11. Isolation of UmRrm75, a gene involved in dimorphism and virulence of Ustilago maydis

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Ustilago maydis displays dimorphic growth, alternating between a saprophytic haploid yeast form and a filamentous dikaryon, generated by mating of haploid cells and which is an obligate parasite. Induction of the dimorphic transition of haploid strains in vitro by change in ambient pH has been used...

  12. Application of 2-um wavelength holmium lasers for treatment of skin diseases

    NASA Astrophysics Data System (ADS)

    Shcherbakov, Ivan A.; Klimov, Igor V.; Tsvetkov, Vladimir B.; Nerobeev, Alexander I.; Sadovnikova, Lija B.; Eliseenko, Vladimir I.

    1994-09-01

    Theoretical and experimental analysis of the efficiency of application of 2 micrometers pulsed holmium laser for cosmetic and plastic surgery and dermatology is carried out. Preliminary experiments were carried out on rats. Solid state 2 micrometers pulsed laser was allowed to operate in free running mode with pulse energy up to 1.5 J and pulse repetition rate up to 5 Hz. To deliver emission to the object a flexible quartz fiber without further focusing of 2.5 m in length and 400 micrometers of the core diameter was used. The effect of the different power density emission on the skin was studied. The second stage was the study of the influence of 2 micrometers emission on human skin. The results of the removal of hemangioma, papilloma, telangiectasia, nevus, nevus acantholytic, xanthelasma palpebral, verruca, chloasma, pigmental spots, tattoos, etc. are presented. Precision, simplicity, efficiency, and the high cosmetic effect of these operations is noted.

  13. "I May Be Crackin', But Um Fackin": Racial Humor in "The Watsons Go To Birmingham--1963"

    ERIC Educational Resources Information Center

    McNair, Jonda C.

    2008-01-01

    This article examines the utilization of racial humor in Christopher Paul Curtis' novel, "The Watsons Go To Birmingham--1963." The theoretical perspectives that inform the analysis include critical race theory and humor theory. The results of the analysis reveal that the use of humor in this book is influenced to a significant degree by race and

  14. Distribution of benthic foraminifers (>125 um) in the surface sediments of the Arctic Ocean

    USGS Publications Warehouse

    Osterman, Lisa E.; Poore, Richard Z.; Foley, Kevin M.

    1999-01-01

    Census data on benthic foraminifers (>125 ?m) in surface sediment samples from 49 box cores are used to define four depth-controlled biofacies, which will aid in the paleoceanographic reconstruction of the Arctic Ocean. The shelf biofacies contains a mix of shallow-water calcareous and agglutinated species from the continental shelves of the Beaufort and Chukchi Seas and reflects the variable sedimentologic and oceanic conditions of the Arctic shelves. The intermediate-depth calcareous biofacies, found between 500 and 1,100 meters water depth (mwd), contains abundant Cassidulina teretis , presumably indicating the influence of Atlantic-derived water at this depth. In water depths between 1,100 and 3,500 m, a deepwater calcareous biofacies contains abundant Oridorsalis umbonatus . Below 3,500 mwd, the deepwater mixed calcareous/agglutinated biofacies of the Canada, Makarov, and Eurasian Basins reflects a combination of low productivity, dissolution, and sediment transport. Two other benthic foraminiferal species show specific environmental preferences. Fontbotia wuellerstorfi has a depth distribution between 900 and 3,500 mwd, but maximum abundance occurs in the region of the Mendeleyev Ridge. The elevated abundance of F. wuellerstorfi may be related to increased food supply carried by a branch of Atlantic water that crosses the Lomonosov Ridge near the Russian Continental Shelf. Triloculina frigida is recognized to be a species preferring lower slope sediments commonly disturbed by turbidites and bottom currents. INTRODUCTION At present, our understanding of the Arctic Ocean lags behind our understanding of other oceans, and fundamental questions still exist about its role in and response to global climate change. The Arctic Ocean is particularly sensitive to climatic fluctuations because small changes in the amounts of sea-ice cover can alter global albedo and thermohaline circulation (Aagaard and Carmack, 1994). Numerous questions still exist regarding the nature and timing of paleoclimatic events in the Arctic Ocean. In order to attempt to answer some of these questions, baseline studies are imperative. This report discusses the distribution of benthic foraminifers in surface sediment samples from 49 box cores (figs. 1 and 2, table 1) collected by the U.S. Geological Survey (USGS) with the assistance of the U.S. Coast Guard (USCG). A modern data set of benthic foraminiferal distribution is necessary for interpreting the paleoclimatic and oceanographic history of the Arctic Ocean.

  15. O PAPEL DE UM INTELECTUAL: INSERO SOCIAL NA CIDADE DO RIO DE JANEIRO

    E-print Network

    Díaz, Lorenzo J.

    meio ambiente . Equipe do Grupo de Estudos sobre Cotidiano, Educação e Cultura(s) (GECEC) no Complexo produção de conhecimento sobre o tema, mas atua por diversos meios tentando emancipar as instituições suas pesquisas nas áreas econômica e de meio ambiente. Atua junto à sociedade civil na conscientização

  16. Um Framework para Proviso de QoS em Redes Mveis Sem Fio1

    E-print Network

    Colcher, Srgio

    proviso de QoS em redes mveis sem fio integrando solues isoladas encontradas na literatura. Esses gerenciamento de suas localizaes. Pode-se encontrar na literatura uma gama de trabalhos propondo solues para

  17. Optical properties of dental enamel at 9 to 11 um derived from time-resolved radiometry

    NASA Astrophysics Data System (ADS)

    Zuerlein, Michael J.; Fried, Daniel; Seka, Wolf D.; Featherstone, John D. B.; Konkol, Kent

    1997-05-01

    Accurate determination of the optical properties of dental enamel is important for modeling the energy redistribution of laser radiation incident on the tissue. The high absorption coefficients of dental enamel in the mid-IR preclude the use of conventional transmission methods for the determination of optical properties, therefore non- conventional methods must be used. Enamel was irradiated with 9.3 micrometers , 9.6 micrometers , 10.3 micrometers , and 10.6 micrometers light from a CO2 laser with a pulse duration of approximately 100 microsecond(s) . Samples were irradiated with fluences up to 2 J/cm2. These fluences produce temperature excursions below the melting point for the tissue. Surface temperatures were monitored using time resolved radiometric measurements with 1 microsecond(s) temporal resolution. A 1D heat conduction model was used to estimate the temperature increase in enamel. By varying the absorption coefficient, the model temperature versus time profile was fitted to the experimental profile. The absorption coefficients of enamel were found to fall well below values in the literature determined using angular-resolved reflectance measurements at the same wavelengths. The new absorption coefficients were used in our heat conduction model to determine temperature excursions below the surface of the tooth. This study is a vital step in determining the optimum laser parameters for caries preventive treatments.

  18. Thermal response of hard dental tissues to 9- through 11- um CO2-laser irradiation

    NASA Astrophysics Data System (ADS)

    Fried, Daniel; Seka, Wolf D.; Glena, Richard E.; Featherstone, John D.

    1996-07-01

    The morphology and the chemistry of dental enamel and dentin can be modified by irradiation with a CO2 laser to increase the acid resistance of the intrinsic mineral. The changes induced in hard dental tissues after laser irradiation are predominantly determined by the photothermally induced temperature rise in the tissue. Therefore the temperature rise in the irradiated enamel and dentin must be determined under controlled laser conditions. Surface and subsurface temperatures were monitored after multiple-pulse CO2-laser irradiation at (lambda) equals 9.3, 9.6, 10.3, and 10.6 micrometers with 1- and 20-J/cm2 pulses of 50- to 500-microsecond(s) duration using radiometry and microthermocouples. Surface temperatures were significantly higher after 9.3- and 9.6-micrometers irradiation than for the more commonly utilized 10.6-micrometers CO2-laser wavelength. Permanent changes in the temperature response of enamel and dentin were observed at fluences greater than 2 J/cm2 and 100-microsecond(s) duration for dentin and 5 J/cm2 for enamel. CO2-laser irradiation changes the thermal and the optical properties of these tissues, substantially changing the energy deposition for subsequent laser pulses. These changes affect both the amount of energy absorbed and the depth of absorption. The more efficient absorption at (lambda) equals 9.3 and 9.6 micrometers may be advantageous for both caries-preventive treatments and ablation of exposed hard dental tissues while minimizing heat deposition in the tooth.

  19. Lamper, Karen Teresa From: UM Research Listserv on behalf of Lamper,

    E-print Network

    Shyu, Mei-Ling

    deficit/hyperactivity disorder and autism spectrum disorder, cerebral palsy and mental illnesses) using, inflammatory bowel disease, sickle cell disease, malnutrition, developmental disabilities including attention

  20. Modelamento, Construo, Instrumentao, Localizao, Simulao e Controle de um Veculo Areo

    E-print Network

    Williams, Brian C.

    matemtico Formalismo de Euler-Lagrange (Lagrangiano) Leis de Newton Isaac Newton Leonhard Euler Joseph matemtico Formalismo de Euler-Lagrange (Lagrangiano) Leis de Newton Isaac Newton Leonhard Euler Joseph.H.R.Q.A. Santana, M.A. Braga 29 3. Modelamento matemtico Lagrangiano 2 Lei de Newton #12;Braslia, 09 de julho de

  1. MRC-SPECT: A Sub-500 um Resolution MR-Compatible SPECT System for Simultaneous Dual-

    E-print Network

    Arizona, University of

    Detector hybrids Wire-bonding Copper heat sink Connector for receiving external trigger signal High.3 cm x 4.5 cm x 2 mm Four 2048-channel readout ASICs Copper Heat sink Rapid prototyping supporting copper heat sink Current Detector for the SPECT-MRI System Rapid prototyping supporting frame FPGA

  2. Anlise dos Conceitos Astronmicos Apresentados por Professores de Algumas Escolas Estaduais Brasileiras

    NASA Astrophysics Data System (ADS)

    Voelzke, Marcos Rincon; Gonzaga, Edson Pereira

    2011-12-01

    A razo para o desenvolvimento deste trabalho baseia-se no fato de que muitos professores da Educao Bsica (EB) no lidam com conceitos relacionados astronomia, e quando o fazem eles simplesmente seguem livros didticos que podem conter erros conceituais. Como de conhecimento geral a astronomia um dos contedos a serem ensinados na EB fazendo parte dos Parmetros Curriculares Nacionais e das Propostas Curriculares do Estado de So Paulo, mas um fato, que vrios pesquisadores apontam, a existncia de muitos problemas no ensino da astronomia. Com o propsito de minimizar algumas dessas deficincias foi realizado um trabalho de pesquisa com a utilizao de questionrios pr e ps pesquisa, para tanto foi desenvolvido um Curso de Extenso Universitria para professores da Diretoria de Ensino Regional (DE) que abrange Mau, Ribeiro Pires e Rio Grande da Serra (no Estado de So Paulo) com os seguintes objetivos: levantar concepes alternativas; subsidiar os professores por meio de palestras, debates e workshops, e verificar o sucesso da aprendizagem aps o curso, adotando-se como referncia, para a anlise dos resultados, os dicionrios de Lngua Portuguesa (FERREIRA, 2004) e Enciclopdico de Astronomia e Astronutica (MOUR?O, 1995). Portanto, dezesseis questes foram aplicadas antes e aps o curso, assim pode-se verificar aps a pesquisa que 100,0% dos professores sabiam os nomes das fases da Lua, 97,0% entenderam que o Sistema Solar composto por oito planetas, 78,1% foram capazes de explicar como ocorre um eclipse lunar, um eclipse solar e um solstcio, 72,7% sabiam como explicar a ocorrncia das estaes do ano; 64,5% explicaram corretamente a ocorrncia do equincio, 89,7% foram capazes de definir adequadamente o termo cometa; 63,6% definiram asteride, 54,5% meteoro, 58,1% galxia, e 42,4% planeta. Os resultados obtidos indicam uma aprendizagem significativa por parte dos participantes.

  3. The Aripuana Park and the Polonoroeste Programme. IWGIA Document No. 59.

    ERIC Educational Resources Information Center

    Junqueira, Carmen; Mindlin, Betty

    The Polonoroeste program is a World Bank-funded colonization project in central Brazil. This document looks at the indigenous peoples of the Aripuana Park which lies in the path of the development plan. The main objective of the $1.5 billion project is to pave a highway from Cuiaba to Porto Velho. The project consists of the highway, colonization

  4. Motion Processing Using Variable Harmonic Components

    E-print Network

    de Figueiredo, Luiz Henrique

    Motion Processing Using Variable Harmonic Components Jonas Gomes1 Luiz Velho1 Fernando Wagner da discusses the problem of motion processing and proposes the use of a mathematical model, which describes a motion signal as a path with variable har- monic components. We show that this model is quite suited

  5. 3D human face reconstruction using principal components spaces

    E-print Network

    de Figueiredo, Luiz Henrique

    3D human face reconstruction using principal components spaces Jess P. Mena-Chalco1 , Luiz Velho2 subdivisions (c)-(d), producing a new 3D face model (e)-(f). Abstract--In this work we propose a new method of 3D face computational photography based on a facial expressions training dataset composed of both

  6. Biodiversity offsets: from current challenges to harmonized metrics

    E-print Network

    Pereira, Henrique Miguel

    Biodiversity offsets: from current challenges to harmonized metrics Ba rbara Goncalves1,2,3 , Alexandra Marques2,3 , Amadeu Morta gua Velho Da Maia Soares1 and Henrique Miguel Pereira2,3,4 Biodiversity activities. We review the scientific literature on biodiversity offsets, published between 1999 and 2014. We

  7. Brazil: Into the Interior Jerry R. Hobbs

    E-print Network

    Hobbs, Jerry R.

    Cuiab??a to Porto Velho, through the state of Rondonia, once a rain forest but now logged and burned. The others lined up at the door of an o#ce. I looked in the door. A nurse was giving people malaria shots

  8. Development of Mobile Applications

    E-print Network

    de Figueiredo, Luiz Henrique

    Development of Mobile Applications for New Media Luiz Velho IMPA 1 Outline Meta-Media Mobile Kinds Portability Miniaturization Connectivity Multimodal Design Form and Function 7 Meta Satisfaction Social and Cultural Insertion Business Models 9 Mobile Applications 10 What's Different Now

  9. A shading pipeline for 2D animation techniques HEDLENA BEZERRA

    E-print Network

    de Figueiredo, Luiz Henrique

    A shading pipeline for 2D animation techniques HEDLENA BEZERRA 1 , LUIZ VELHO 2 , BRUNO FEIJ 1 1] Normals; [O] Orientation; [S] Smoothing; [M] Mask; [I] Interpolation 1. Introduction Traditional animation is often leaded by 2D cartoons where each frame is hand draw. Throughout the history of cartoon

  10. Laboratorio VISGRAF Instituto de Matematica Pura e Aplicada

    E-print Network

    de Figueiredo, Luiz Henrique

    surface shape and reflectance attributes. Most high-end 3D scanners sample the surface shape at a high Luiz Velho & Jonas Sossai Jr. Abstract. The use of attribute maps for 3D surfaces is an important issue, such as the type of mapping. An example is 3D photography, where the texture comes from images of the object

  11. Government policies and deforestation in Brazil's Amazon region

    SciTech Connect

    Mahar, D.J.

    1989-01-01

    Contents include: Brazil's Amazonian Forests (biological diversity, the magnitude and rate of deforestation, proximate causes of deforestation); and the evolution of regional policies (operation Amazonia, the Belem-Brasilia Highway, incentives for livestock development, the National Integration Program, the Cuiaba-Porto Velho Highway and Polonoroeste, the era of big projects).

  12. Digital Video, Digital TV IMPA -Instituto de Matemtica Pura e

    E-print Network

    de Figueiredo, Luiz Henrique

    1 Digital Video, Digital TV and Beyond Luiz Velho IMPA - Instituto de Matemtica Pura e Aplicada 2 Outline Video in the Digital Age Deployment of Digital Video Enabling Technologies Research @ VISGRAF Laboratory Trends and the Future... 3 Evolution of Digital Video 1st Generation - Analog / Digital Conversion

  13. Color Halftoning with Stochastic Screening and Adaptive Clustering

    E-print Network

    de Figueiredo, Luiz Henrique

    Color Halftoning with Stochastic Screening and Adaptive Clustering Luiz Velho Jonas Gomes Instituto for color halftoning using stochastic screening. This algorithm has three distinguished features: it uses according to the variation of the image color values. Therefore, the method incorporates fea- tures from

  14. Developing Mobile Multimedia Apps, Botanic: A Case Study

    E-print Network

    de Figueiredo, Luiz Henrique

    Developing Mobile Multimedia Apps, Botanic: A Case Study Luiz Velho IMPA - Instituto de Matematica of creating this type of App, going through all the stages of its lifecycle, from initial concept to final, Vision, Image Processing, and HCI. In order to be effective, mobile multimedia apps make use

  15. A Platform for Spatial Augmented Reality Julio Lucio Martin

    E-print Network

    de Figueiredo, Luiz Henrique

    A Platform for Spatial Augmented Reality Julio Lucio Martin IMPA juliolucio@gmail.com Luiz Velho. The technique of spa- tially augmented reality has its origins in the seminal work "Office of the Future, the refraction and lighting properties. The traditional computer graphics or traditional head augmented reality

  16. Informativo Ano 1 n 06 outubro/2013 Oficina de Preveno e Controle do Desmatamento na Trplice Fronteira

    E-print Network

    na Trplice Fronteira O Ministrio do Meio Ambiente, por meio do Departamento de Polticas de Combate meio ambiente do Acre, Amazonas e Rondnia, realizou em Porto Velho a Oficina de Preveno e Controle Secretaria de Estado de Meio Ambiente do Par. O INPE como instituio participante do COGES foi representado

  17. An Architecture for Motion Capture Based Animation FERNANDO WAGNER DA SILVA1;2

    E-print Network

    de Figueiredo, Luiz Henrique

    An Architecture for Motion Capture Based Animation FERNANDO WAGNER DA SILVA1;2 LUIZ VELHO1 PAULO Abstract. This paper proposes an architecture for motion capture based animation systems, which works interface is proposed to perform an intuitive visualization of the animation main elements. A prototype

  18. An image-based shading pipeline for 2D animation Hedlena Bezerra1

    E-print Network

    de Figueiredo, Luiz Henrique

    An image-based shading pipeline for 2D animation Hedlena Bezerra1 Bruno Feijo1 Luiz Velho2 1 PUC 110 22460-320 Rio de Janeiro, RJ, Brazil lvelho@impa.br Abstract Shading for cel animation based on images is a recent research topic in computer-assisted animation. This paper proposes an image

  19. An Architecture for Motion Capture Based Animation Fernando Wagner da Silva 1,2

    E-print Network

    de Figueiredo, Luiz Henrique

    An Architecture for Motion Capture Based Animation Fernando Wagner da Silva 1,2 Luiz Velho 1 Paulo Postal 68511 Abstract. This paper proposes an architecture for motion capture based animation systems operations. Also, a user interface is proposed to perform an intuitive visualization of the animation main

  20. MUAN: A Stop Motion Animation System Margareth Catoia Varela1

    E-print Network

    de Figueiredo, Luiz Henrique

    MUAN: A Stop Motion Animation System Margareth Catoia Varela1 , Luiz Velho1 , Bruno Madeira1,lvelho,madeira,hedlena }@impa.br, marcos@animamundi.com.br Abstract. MUAN is a Stop Motion Animation System for Education. The MUAN system allows animation movie production offering an integrated kit of hardware and software

  1. An Architecture for Motion Capture Based Animation FERNANDO WAGNER DA SILVA 1;2

    E-print Network

    de Figueiredo, Luiz Henrique

    An Architecture for Motion Capture Based Animation FERNANDO WAGNER DA SILVA 1;2 LUIZ VELHO 1 PAULO 68511 Abstract. This paper proposes an architecture for motion capture based animation systems, which. Also, a user interface is proposed to perform an intuitive visualization of the animation main elements

  2. Lunnoe zatmenie -330, sept. 20 i problema izmereniya dolgoty v antichnoj geografii %t The -330, Sept. 20 lunar eclipse and the problem of the determination of longitude in ancient geography

    NASA Astrophysics Data System (ADS)

    Shcheglov, D. A.

    The attempt to reconstruct the Hipparchus system of is proposed. The offered analysis of certain passages in the treatises of Ptolemy, Pliny, and Strabo allows to trace the latent semantic connection between them and to advance a hypothesis to clarify it. Ptolemy's passage (sect. 3) states Hipparchus to propose in his geography a certain system of meridians and to use the -330, Sept. 20 eclipse to determine the relative longitudes of Arbela and Carthage. Pliny's evidence (4) shows that Hipparchus must have known about the observation of this eclipse from Sicily, which demands to situate this island far eastward of Carthage. Strabo's data (5) confirm that Hipparchus, while criticising Eratosthenes, suggested situating Sicily far eastward of Carthage. Ptolemy's data (6) show that Marinus, whose work Ptolemy's geography was based on, in his early redaction, must situate Sicily farther eastward than in the final variant. Posidonius' passage (7) demonstrates the latitude of Sicily in Ptolemy's geography to go back to Hipparchus. In "Almagest" (9) the longitude of Babylon (relative to Alexandria) is directly ascribed to Hipparchus and the longitude of Rome agrees with that of Sicily in Pliny's evidence. The data of Ptolemy's geography (9.3-9.5) permit that Arbela and Babylon were situated on the same meridian initially. All these enable us to suggest that Hipparchus determined the longitudes not only of Arbela and Babylon, but also of Babylon and Sicily, Alexandria and Rome.

  3. M\\'{e}todos para la Selecci\\'{o}n y el Ajuste de Caracter\\'{i}sticas en el Problema de la Detecci\\'{o}n de Spam

    E-print Network

    Lorenzetti, Carlos M; Maguitman, Ana G; Benczr, Andrs A

    2010-01-01

    It is used daily by millions of people to communicate around the globe and is a mission-critical application for many businesses. Over the last decade, unsolicited bulk email has become a major problem for email users. An overwhelming amount of spam is flowing into users' mailboxes daily. In 2004, an estimated 62% of all email was attributed to spam. Not only is spam frustrating for most email users, it strains the IT infrastructure of organizations and costs businesses billions of dollars in lost productivity. In recent years, spam has evolved from an annoyance into a serious security threat, and is now a prime medium for phishing of sensitive information, as well the spread of malicious software. Therefore we propose an algorithm that uses a classifier as one of its components. Our proposal does not include the development of a classifier itself, instead of that it plans an adjustment in the classifier training set data in order to improve their performance.

  4. PubMed

    Guedes, Gilvan Ramalho; Caetano, Andr Junqueira; Machado, Carla Jorge; Brondzio, Eduardo Sonewend

    2010-01-01

    O mtodo Grade of Membership (GoM) tem sido cada vez mais utilizado por demgrafos brasileiros e tem a vantagem de possuir um parmetro que mensura a heterogeneidade individual, com base nas correlaes no-observveis entre as categorias de resposta das variveis de interesse, gerando um medida do grau de pertencimento de cada indivduo a perfis extremos. Alguns autores, contudo, chamam ateno para questes importantes na calibragem dos modelos finais que utilizam o programa GoM verso 3.4, como o problema de identificabilidade - solues mltiplas para parmetros estimados. Neste artigo, sugerido um procedimento capaz de identificar um modelo final com soluo nica que descreva os tipos puros mais fidedignos base de dados, em uma tentativa de otimizao. Para ilustrar esse processo, utilizou-se uma base de dados correspondente a um levantamento econmico e sociodemogrfico de uma populao de pequenos agricultores residentes ao longo da Rodovia Transamaznica, no Estado do Par. Tambm identificou-se a existncia de instabilidade nos parmetros estimados pelo programa GoM 3.4, sendo proposto um mtodo de estabilizao de seus valores. Com esses procedimentos combinados, os usurios do programa GoM 3.4 podero descrever sua base de dados de forma mais adequada e responder s crticas sobre questes de identificabilidade e estabilidade dos modelos resultantes. Essas solues empricas so relevantes por afetarem clculos de prevalncia e de incidncia de eventos de interesse, alm de trazerem consequncias importantes sobre o ponto e o momento corretos para intervenes de polticas pblicas ou de planejamento prospectivo em anlises de projeo. PMID:21709732

  5. Identificabilidade e estabilidade dos parmetros no mtodo Grade of Membership (GoM): consideraes metodolgicas e prticas

    PubMed Central

    Guedes, Gilvan Ramalho; Caetano, Andr Junqueira; Machado, Carla Jorge; Brondzio, Eduardo Sonewend

    2011-01-01

    O mtodo Grade of Membership (GoM) tem sido cada vez mais utilizado por demgrafos brasileiros e tem a vantagem de possuir um parmetro que mensura a heterogeneidade individual, com base nas correlaes no-observveis entre as categorias de resposta das variveis de interesse, gerando um medida do grau de pertencimento de cada indivduo a perfis extremos. Alguns autores, contudo, chamam ateno para questes importantes na calibragem dos modelos finais que utilizam o programa GoM verso 3.4, como o problema de identificabilidade solues mltiplas para parmetros estimados. Neste artigo, sugerido um procedimento capaz de identificar um modelo final com soluo nica que descreva os tipos puros mais fidedignos base de dados, em uma tentativa de otimizao. Para ilustrar esse processo, utilizou-se uma base de dados correspondente a um levantamento econmico e sociodemogrfico de uma populao de pequenos agricultores residentes ao longo da Rodovia Transamaznica, no Estado do Par. Tambm identificou-se a existncia de instabilidade nos parmetros estimados pelo programa GoM 3.4, sendo proposto um mtodo de estabilizao de seus valores. Com esses procedimentos combinados, os usurios do programa GoM 3.4 podero descrever sua base de dados de forma mais adequada e responder s crticas sobre questes de identificabilidade e estabilidade dos modelos resultantes. Essas solues empricas so relevantes por afetarem clculos de prevalncia e de incidncia de eventos de interesse, alm de trazerem consequncias importantes sobre o ponto e o momento corretos para intervenes de polticas pblicas ou de planejamento prospectivo em anlises de projeo. PMID:21709732

  6. Uma Comparao entre Tcnicas de Propagao de Erros em Astrofsica: Monte Carlo x Bootstrap

    NASA Astrophysics Data System (ADS)

    Zabot, Alexandre; Baptista, Raymundo

    2005-07-01

    Neste trabalho feito um estudo comparativo entre dois algoritmos numricos usados para propagao de erros em dados experimentais. Um deles conhecido por Mtodo de Monte carlo e o outro por Mtodo de Bootstrap. Recentemente, Dhullon & Watson argiram que a aplicao do mtodo de Monte Carlo introduz rudo nos dados, e propuseram ento a utilizao do Bootstrap como alternativa capaz de produzir resultados superiores. O objetivo deste trabalho testar a validade dessa afirmao. As duas tcnicas foram aplicadas a trs problemas diferentes: o ajsute de modelos de emisso LTE simples e atmosfera estelar a espectros estelares observados e o ajuste de curvas de luz de eclipses de Variveis Cataclsmicas para a detemrinao da distribuio radial de brilho dos seus discos de acrscimo. Os mtodos foram testados quanto sua robusteza, ou seja, a capacidade de prover resultados coerentes enre si. Alm disso, as solues dos mtodos foram comparadas. Os resultados indicam que no existe evidncia de superioridade de um mtodos em relao ao outro.

  7. Estudo comparativo entre estrelas centrais de nebulosas planetrias deficientes em hidrognio

    NASA Astrophysics Data System (ADS)

    Marcolino, W. L. F.; de Arajo, F. X.

    2003-08-01

    Apresentamos neste trabalho o resultado de um estudo das principais caractersticas espectrais das estrelas centrais de nebulosas planetrias (ECNP) deficientes em hidrognio. A origem e a evoluo dessas estrelas ainda constitui um problema em aberto na evoluo estelar. Geralmente esses objetos so divididos em [WCE], [WCL] e [WELS]. Os tipos [WCE] e [WCL] apresentam um espectro tpico de uma estrela Wolf-Rayet carbonada de populao I e as [WELS] apresentam linhas fracas de carbono e oxignio em emisso. Existem evidncias que apontam a seguinte sequncia evolutiva : [WCL] = > [WCE] = > [WELS] = > PG 1159 (pr an-branca). No entanto, tal cenrio apresenta falhas como por exemplo a falta de ECNP entre os tipos [WCL] e [WCE]. Baseados em uma amostra de 24 objetos obtida no telescpio de 1.52m em La Silla, Chile (acordo ESO/ON), ao longo do ano 2000, apresentamos os resultados da comparao das larguras equivalentes de diversas linhas relevantes entre os tipos [WCL], [WCE] e [WELS]. Verificamos que nossos dados esto de acordo com a sequncia evolutiva. Baseado nas linhas de C IV, conseguimos dividir pela primeira vez as [WELS] em dois grupos principais. Alm disso, os dados reforam a afirmao de que as [WCE] so as estrelas que possuem a maior temperatura entre as ECNP deficientes em hidrognio. Discutimos ainda, a escassez de dados disponveis na literatura e a necessidade da obteno de parametros fsicos para estes objetos.

  8. Controle orbital de satlites artificiais com propulso e uso de gravidade lunar

    NASA Astrophysics Data System (ADS)

    Torres, K. S.; de Almeida Prado, A. F. B.

    2003-08-01

    A reduo do custo de combustvel de uma manobra atualmente a grande prioridade de todos os programas espaciais existentes no mundo. As manobras assistidas pela gravidade so uma tima forma de se contornar o problema pois proporcionam economias com vasto impacto no custo final da misso. Neste trabalho feito um estudo particular do controle orbital de um satlite artificial da Terra usando a gravidade da Lua. O objetivo estudar uma tcnica econmica para uma mudana de plano de um satlite que est em rbita em volta da Terra. A idia principal desta abordagem enviar primeiramente o veculo espacial em direo Lua usando uma manobra mono-impulsiva para que assim o campo gravitacional da Lua possa fazer a mudana de plano desejada (sem custo de combustvel) e s ento retornar o veculo aos valores iniciais de semi-eixo e excentricidade usando uma manobra bi-impulsiva tipo Hohmann. Para tanto, assumido que a espaonave inicia em uma rbita circular coplanar rbita da lua em torno da Terra e a meta coloc-la em uma rbita similar que difere da rbita inicial somente pela inclinao. So usadas equaes analticas baseadas na abordagem Patched Conics para se calcular a variao na velocidade, momento angular, energia e inclinao do veculo espacial que realiza esta manobra. Vrias simulaes so feitas para se avaliar as economias de combustvel envolvidas.

  9. Laser activity at 1.18 um, 1.07 um, and 0.97 umin the low phonon energy crystalline hosts KPb2Br5 and RbPb2Br5 doped with Nd3+

    SciTech Connect

    Rademaker, K; Heumann, E; Payne, S A; Huber, G; Krupke, W F; Isaenko, L I; Burger, A

    2004-09-15

    For the first time laser activity has been achieved in the low phonon energy, moisture-resistant bromide host crystals, neodymium-doped potassium lead bromide (Nd{sup 3+}:KPb{sub 2}Br{sub 5}) and rubidium lead bromide (Nd{sup 3+}:RbPb{sub 2}Br{sub 5}). Laser activity at 1.07 {micro}m was observed for both crystalline materials. Laser operation at the new wavelengths 1.18 {micro}m and 0.97 {micro}m resulting from the {sup 4}F{sub 5/2} + {sup 2}H{sub 9/2} {yields} {sup 4}I{sub J} transitions (J=13/2 and 11/2) in Nd:RPB was achieved for the first time in a solid state laser material. Rare earth- doped MPb{sub 2}Br{sub 5} (M=K, Rb) is a promising candidate for long wavelength infrared applications because of its low phonon frequencies and other favorable features. In principle, Nd{sup 3+}:MPb{sub 2}Br{sub 5} has high potential for laser operation at new wavelengths as well as for the realization of short-wavelength lasing due to upconversion processes.

  10. A 2.4 GHz Phase Modulator for a WLAN OFDM Polar Transmitter in 0.18 um CMOS

    E-print Network

    Arbabi, Shokoufeh

    2014-09-11

    provides a constant envelope phase modulated signal to the Power amplifier(PA) , operating in nonlinear high efficient switching mode. The core design of the phase modulator is based on linear vector-sum phase shifting topology to differential quadrature...

  11. DETERMINATION OF THE STRONG ACIDITY OF ATMOSPHERIC FINE PARTICLES (<2.5 UM) USING ANNULAR DENUDER TECHNOLOGY

    EPA Science Inventory

    This report is a standardized methodology description for the determination of strong acidity of fine particles (less than 2.5 microns) in ambient air using annular denuder technology. his methodology description includes two parts: art A - Standard Method and Part B - Enhanced M...

  12. Regulamento do 3 AnimaCatarina O evento 3 AnimaCatarina visa promover um espao de discusso sobre

    E-print Network

    Hanazaki, Natalia

    principal a apresentao de obras estudantis e valorizao das melhores animaes e games (jogos digitais.2 Game: Sero aceitos jogos digitais que trabalhem com elementos interativos que possuam metas ou animaes e jogos digitais inscritos pela comisso de especialistas. 16 de novembro - Divulgao, atravs do

  13. An Upper Bound on the Flux Ratio of rho CrB's Companion at 1.6um

    E-print Network

    C. Bender; M. Simon; L. Prato; T. Mazeh; S. Zucker

    2004-09-17

    We use high resolution infrared spectroscopy to investigate the 2001 report by Gatewood and colleagues that rho CrB's candidate extrasolar planet companion is really a low-mass star with mass 0.14+-0.05 Msun. We do not detect evidence of such a companion; the upper bounds on the (companion/primary) flux ratio at 1.6 microns are less than 0.0024 and 0.005 at the 90 and 99% confidence levels, respectively. Using the H-band mass-luminosity relationship calculated by Baraffe and colleagues, the corresponding upper limits on the companion mass are 0.11 and 0.15 Msun. Our results indicate that the infrared spectroscopic technique can detect companions in binaries with flux ratios as low as 0.01 to 0.02.

  14. The relationship between English language learning strategies and gender among pre-university students: An overview of UMS

    NASA Astrophysics Data System (ADS)

    Kiram, Johannah Jamalul; Sulaiman, Jumat; Swanto, Suyansah; Din, Wardatul Akmam

    2014-06-01

    This study aims to analyze the effects psychological gender differences on the relationship between language learning strategies and their proficiency in English language for pre-university students. Previous researchers found that the more employment of language learning strategies, the more successful the learners are and those with higher level of strategy use are female rather than male. In this study, fifty-six pre-university students (22 males, 34 females) of University Malaysia Sabah participated in this study. Oxford's Strategy Inventory for Language Learning (SILL) self-report questionnaire was adopted to identify the students' language learning strategies, whereas their proficiencies were based on their Malaysian University English Test (MUET) results. Pearson's correlation coefficient, one-way analysis of variance (ANOVA) and the t-test were utilized to make statistical interpretation about the relationship. The knowledge obtained from this study will be helpful for future studies on how to improve the quality of learning and proficiency in English.

  15. Observation of nonlinear optical phenomena in fused silica and air using a 100 GW, 1.54 um source.

    SciTech Connect

    Rudd, James Van; Law, R. J.; Luk, Ting Shan; Naudeau, Madeline L.; Nelson, Thomas Robert; Cameron, Stewart M.

    2006-02-01

    A 100-GW optical parametric chirped-pulse amplifier system is used to study nonlinear effects in the 1.54 {micro}m regime. When focusing this beam in air, strong third-harmonic generation (THG) is observed, and both the spectra and efficiency are measured. Broadening is observed on only the blue side of the third-harmonic signal and an energy conversion efficiency of 0.2% is achieved. When propagated through a 10-cm block of fused silica, a collimated beam is seen to collapse and form multiple filaments. The measured spectral features span 400-2100 nm. The spectrum is dominated by previously unobserved Stokes emissions and broad emissions in the visible.

  16. VizieR Online Data Catalog: 24um fluxes of GOODS-S AGN (Garcia-Gonzalez+, 2015)

    NASA Astrophysics Data System (ADS)

    Garcia-Gonzalez, J.; Alonso-Herrero, A.; Perez-Gonzalez, P. G.; Hernan-Caballero, A.; Sarajedini, V. L.; Villar, V.

    2015-06-01

    We compiled all the data taken around the GOODS South field with the MIPS instrument at 24?m by querying the Spitzer Heritage Archive.1 This field was observed by Spitzer during several campaigns from 2004 January to 2007 March. We focused our study on a region around RA=03:32:36 (J2000) and DE=-27:48:39 (J2000). These data correspond to different observing proposals from different PI, including the Guaranteed Time Observations programme (GTO, PI: G. Rieke) and the GOODS programme (PI: M. Dickinson). We have obtained 151 AORs (Astronomical Observation Request) but only downloaded 127 because the others were from the SWIRE (Spitzer Wide-area InfraRed Extragalactic) survey and were not sufficiently deep. (2 data files).

  17. VizieR Online Data Catalog: 867um image of SBS 0335-052 with ALMA (Hunt+, 2014)

    NASA Astrophysics Data System (ADS)

    Hunt, L. K.; Testi, L.; Casasola, V.; Garcia-Burillo, S.; Combes, F.; Nikutta, R.; Caselli, P.; Henkel, C.; Maiolino, R.; Menten, K. M.; Sauvage, M.; Weiss, A.

    2013-11-01

    The observations were carried out in five separate sessions from Jul. 30 through Aug. 14, 2012 with the ALMA observatory as part of Early Science Cycle 0. The average number of antennas was 24 and the array was in the Early Science extended configuration providing baselines up to 400m. SBS 0335-052 was observed with Band 7, simultaneously in the continuum and in the 12CO(3-2) transition, with a rest frequency of 345.79599GHz. The central sky frequencies of the upper and lower sidebands were ~352GHz and ~340GHz, respectively. The observations were done as 6 executions of the same scheduling block. The unresolved extragalactic source J0339-017 was used for complex gain calibration, while Callisto or Uranus were used as flux calibrators. The measured fluxes of J0339-017 during the various observing sessions were consistently found to be ~0.98Jy and ~0.95Jy at 340GHz and 352GHz, respectively. The flux density scale accuracy is expected to be better than 5%. (2 data files).

  18. Room temperature continuous wave InGaAsN quantum well vertical cavity lasers emitting at 1.3 um

    SciTech Connect

    CHOQUETTE,KENT D.; KLEM,JOHN F.; FISCHER,ARTHUR J.; SPAHN,OLGA B.; ALLERMAN,ANDREW A.; FRITZ,IAN J.; KURTZ,STEVEN R.; BREILAND,WILLIAM G.; SIEG,ROBERT M.; GEIB,KENT M.; SCOTT,J.W.; NAONE,R.L.

    2000-06-05

    Selectively oxidized vertical cavity lasers emitting at 1294 nm using InGaAsN quantum wells are reported for the first time which operate continuous wave at and above room temperature. The lasers employ two n-type Al{sub 0.94}Ga{sub 0.06}As/GaAs distributed Bragg reflectors each with a selectively oxidized current aperture adjacent to the optical cavity, and the top output mirror contains a tunnel junction to inject holes into the active region. Continuous wave single mode lasing is observed up to 55 C. These lasers exhibit the longest wavelength reported to date for vertical cavity surface emitting lasers grown on GaAs substrates.

  19. Chemical optimization of resist/developer systems tuned for sub-0.4-um process window expansion

    NASA Astrophysics Data System (ADS)

    Toukhy, Medhat A.; Schlicht, Karin R.; Tarbox, Kimberly

    1997-07-01

    In order to perform 0.2 micrometer processes, one needs to study the diffusion of photoacid generators within the photoresist system, since diffusion during post exposure bake time has an influence on the critical dimension (CD). We have developed a new method to study the diffusion of photoacid generators within a polymer film. This new method is based on monitoring the change of the fluorescence intensity of a pH- sensitive fluorescent dye caused by the reaction with photoacid. A simplified version of this experiment has been conducted by introducing acid vapor to quench the fluorescence intensity of this pH sensor. A thin polymer film is spin cast onto the sensor to create a barrier to the acid diffusion process. During the acid diffusion process, the fluorescence intensity of this pH sensor is measured in situ, using excitation and emission wavelengths at 466 nm and 516 nm, respectively. Fluoresceinamine, the pH sensitive fluorescent dye, is covalently bonded onto the treated quartz substrate to form a single dye layer. Poly(hydroxystyrene) (Mn equals 13k, Tg equals 180 degrees Celsius) in PGMEA (5% - 18% by weight) is spin cast onto this quartz substrate to form films with varying thickness. The soft bake time is 60 seconds at 90 degrees Celsius and a typical film has a thickness of 1.4 micrometers. Trifluoroacetic acid is introduced into a small chamber while the fluorescence from this quartz window is observed. Our study focuses on finding the diffusion constant of the vaporized acid (trifluoroacetic acid) in the poly(hydroxystyrene) polymer film. By applying the Fick's second law, (It - Io)/(I(infinity ) - Io) equals erfc [L/(Dt)1/2] is obtained. The change of fluorescence intensity with respect to the diffusion time is monitored. The above equation is used for the data analysis, where L represents the film thickness and t represents the average time for the acid to diffuse through the film. The diffusion constant is calculated to be at the order of 10-10 cm2/s to 10-12 cm2/s. All the experiments are conducted at room temperature and are valid only for acid vapor. With different film thickness, it was found that the acid diffuses through the film with a similar diffusion constant. The diffusion is faster with increased solvent residue in the film (controlled by spin coating speed). The theoretical computer modeling of the local acid concentration with respect to acid diffusion is also performed.

  20. Please print or type. Please do not staple. Social Security or UM ID Number: Date of Birth _______ / _______ / _______________

    E-print Network

    Shyu, Mei-Ling

    ___ Lighting ___ Technical Direction Stage Management Theatre Management 2. High School Drama Teacher SAT Score the Common Application. #12;4. Please list any training outside of your high school/current college (attach rsum if you wish). 5. Please list any other theatre experience from high school, summer stock

  1. High-speed laser diagnostics at 1.06 um with simultaneous percussion hole drilling of aerospace materials

    NASA Astrophysics Data System (ADS)

    Cunningham, Philip R.; Fahndrich, Marc; Oliver, Jeffrey W.; Bertlesen, Thomas S.; Frye, Richard W.

    1993-06-01

    A diagnostic system was designed, fabricated and tested for measuring a Nd:YAG laser's performance using a five-axis laser machining center. Far field beam profile, beam quality, beam tilt and beam power were measured at high frequencies while holes were simultaneously percussion drilled in aerospace materials used in gas turbine engines. The system allowed determination of effects of varying laser and machine operating parameters on materials processing performance. Variations were made in laser pulse length, pulse energy, pulse repetition rate, drilling standoff distances from part, incident angles and other parameters. Measured laser beam performance was compared directly with drilled holes. A number of identically drilled holes provided hole-to-hole variance, allowing the machine center operators to optimize materials processing by tuning the laser operating parameters. The results also gave the operator additional understanding of variations of processing performance.

  2. Simplifying strong electronic correlations in uranium: Localized uranium heavy-fermion UM2Zn20 (M=Co,Rh) compounds

    E-print Network

    Lawrence, Jon

    into their underlying physics. Uranium-based heavy-fermion HF metals share charac- teristic behavior with rare-earth This common scaling behavior obscures an important underlying difference: the rare-earth 4f orbitals. The local-moment character of rare-earth HF compounds allows for detailed fits of the spe- cific heat

  3. Avda. Teniente Flomesta, 5. Edif. Convalecencia. 30003 Murcia T. 968 363 000 F. 968 363 506 www.um.es

    E-print Network

    Acacio, Manuel

    ejercicio de mi derecho a no aportar datos y documentos que obren en poder de las Administraciones Pblicas datos y documentos exigibles en este procedimiento por medios electrnicos y los incorpore a sus ficheros para su tratamiento. Autorizo a la Universidad de Murcia a recabar a travs de medios electrnicos

  4. Espectroscopia infravermelha para a determinacao de carbono do solo: Perspectiva de um metodo economicamente viavel e ambientalmente seguro

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The Kyoto Protocol is an agreement among many of the worlds nations to, among other things, reduce atmospheric carbon dioxide concentrations in order to reduce global warming. One potential method to do so is to sequester carbon in soils. This has had the effect of stimulating the establishment of ...

  5. Research at the University of Virginia School of Engineering & Applied Science VolUmE12,NUmbER2

    E-print Network

    Huang, Wei

    Web Site Security More-Flexible Processors High-Resolution Ultrasound Genetic Debugging 3 4 5 6 7 8 9 with undergraduates, work- ing together in conference rooms, grabbing a bite at Einstein's Ba- gels and studying

  6. The relationship between English language learning strategies and proficiency of pre-university students: A study case of UMS

    NASA Astrophysics Data System (ADS)

    Kiram, Johannah Jamalul; Sulaiman, Jumat; Swanto, Suyansah; Din, Wardatul Akmam

    2014-07-01

    This paper seeks to investigate the relationship between language learning strategies and proficiency in English. Fifty-six pre-university students (22 males, 34 females) of University Malaysia Sabah participated in this study. Oxford's Strategy Inventory for Language Learning (SILL) self-report questionnaire was adopted to identify the students' language learning strategies, whereas their proficiencies were judged based on their Malaysian University English Test (MUET) Results. Pearson's correlation coefficient, Spearman's rank correlation coefficient and the t-test were utilized to make statistical interpretation about the relationship. The knowledge obtained from this study will be helpful for future studies on how to improve the quality of learning and proficiency in English.

  7. Photoablation with the free-electron laser between 10 and 15 um in biological soft tissue (cornea)

    NASA Astrophysics Data System (ADS)

    Walker, Rudolf; Ostertag, Manfred; van der Meer, Alexander F.; Bende, Thomas; Schmiedt, Karl C.; Jean, Benedikt J.

    1997-04-01

    The ablation depth and collateral thermal damage for pulsed IR photoablation as a function of wavelength with the free- electron laser (FEL) at 10.1, 11.8, 12.8, and 14.5 micrometers wavelengths is investigated. FEL data are compared with the blow-off and the continuous ablation models. Porcine cadaver corneas were used as target material. The experimental data are compared with theoretical calculations for both models. At low water absorption the additional absorption of the cornea was taken into account. FEL data were: energy per pulse between 15.6 and 17.8 mJ, ablation zone around 0.2 mm2, and pulse length 4 microsecond(s) . In this wavelength range an effective photoablation of biological materials with a high water content can be achieved. The measured FEL data of ablation depth fail to confirm the blow-off model, describing ablation depth sufficiently well. The wavelength, collagen absorption contributes to the overall absorption of corneal tissue. The ablation depth can only be described by the continuous ablation model; however, the collateral thermal damage pattern can be described by both models.

  8. Spectrally Consistent Scattering, Absorption, and Polarization Properties of Atmospheric Ice Crystals at Wavelengths from 0.2 to 100 um

    NASA Technical Reports Server (NTRS)

    Yang, Ping; Bi, Lei; Baum, Bryan A.; Liou, Kuo-Nan; Kattawar, George W.; Mishchenko, Michael I.; Cole, Benjamin

    2013-01-01

    A data library is developed containing the scattering, absorption, and polarization properties of ice particles in the spectral range from 0.2 to 100 microns. The properties are computed based on a combination of the Amsterdam discrete dipole approximation (ADDA), the T-matrix method, and the improved geometric optics method (IGOM). The electromagnetic edge effect is incorporated into the extinction and absorption efficiencies computed from the IGOM. A full set of single-scattering properties is provided by considering three-dimensional random orientations for 11 ice crystal habits: droxtals, prolate spheroids, oblate spheroids, solid and hollow columns, compact aggregates composed of eight solid columns, hexagonal plates, small spatial aggregates composed of 5 plates, large spatial aggregates composed of 10 plates, and solid and hollow bullet rosettes. The maximum dimension of each habit ranges from 2 to 10,000 microns in 189 discrete sizes. For each ice crystal habit, three surface roughness conditions (i.e., smooth, moderately roughened, and severely roughened) are considered to account for the surface texture of large particles in the IGOM applicable domain. The data library contains the extinction efficiency, single-scattering albedo, asymmetry parameter, six independent nonzero elements of the phase matrix (P11, P12, P22, P33, P43, and P44), particle projected area, and particle volume to provide the basic single-scattering properties for remote sensing applications and radiative transfer simulations involving ice clouds. Furthermore, a comparison of satellite observations and theoretical simulations for the polarization characteristics of ice clouds demonstrates that ice cloud optical models assuming severely roughened ice crystals significantly outperform their counterparts assuming smooth ice crystals.

  9. CONTINUOUS MEASUREMENT OF PARTICLES (0.01-20.0 UM) IN AN OCCUPIED HOME, REED AND WALLACE, AAAR.

    EPA Science Inventory

    To better understand the contribution of outdoor and indoor sources to particle concentrations found in residential indoor air, an extensive monitoring effort has been undertaken in a three-story townhouse located in Reston, VA. Of particular interest was the determination of i...

  10. Optimization of <= 200 um pitch CZT detectors for future high-resolution X-ray instrumentation in astrophysics

    E-print Network

    Zajczyk, Anna; Dowkontt, Paul; Guo, Qingzhen; Kislat, Fabian; Krawczynski, Henric; De Geronimo, Gianluigi; Li, Shaorui; Beilicke, Matthias

    2015-01-01

    Cadmium Zinc Telluride and Cadmium Telluride are the detector materials of choice for the detection of X-rays in the X-ray energy band E >= 5keV with excellent spatial and spectral resolution and without cryogenic cooling. Owing to recent breakthroughs in grazing incidence mirror technology, next-generation hard X-ray telescopes will achieve angular resolution between 5 and 10 arc seconds - about an order of magnitude better than that of the NuSTAR hard X-ray telescope. As a consequence, the next generation of X-ray telescopes will require pixelated X-ray detectors with pixels on a grid with a lattice constant of science drivers for a high angular-resolution X-ray mission include studies and measurements of black hole spins, the cosmic evolution of super-massive black holes, active galactic nuclei feedback, and the behaviour of matter at very high densities. In this...

  11. Modeling the language learning strategies and English language proficiency of pre-university students in UMS: A case study

    NASA Astrophysics Data System (ADS)

    Kiram, J. J.; Sulaiman, J.; Swanto, S.; Din, W. A.

    2015-10-01

    This study aims to construct a mathematical model of the relationship between a student's Language Learning Strategy usage and English Language proficiency. Fifty-six pre-university students of University Malaysia Sabah participated in this study. A self-report questionnaire called the Strategy Inventory for Language Learning was administered to them to measure their language learning strategy preferences before they sat for the Malaysian University English Test (MUET), the results of which were utilised to measure their English language proficiency. We attempted the model assessment specific to Multiple Linear Regression Analysis subject to variable selection using Stepwise regression. We conducted various assessments to the model obtained, including the Global F-test, Root Mean Square Error and R-squared. The model obtained suggests that not all language learning strategies should be included in the model in an attempt to predict Language Proficiency.

  12. Practical Astronomical Activities during Daytime. (Spanish Title: Actividades Astronmicas Prcticas Diurnas.) Atividades Astronmicas Prticas Diurnas

    NASA Astrophysics Data System (ADS)

    Jackson, Eric

    2009-12-01

    These daytime astronomy activities arose from research done in New Zealand by a group of teachers and astronomers into the problems of teaching astronomy. This showed that it was generally regarded as a difficult subject to take, traditionally relying on books, films and models. The fortunate may have had a visit to an observatory or planetarium, the adventurous may have attempted an outdoor evening viewing session, which sometimes had weather-related difficulties. The problem of not having many 'hands-on' activities, the feelings of inadequate knowledge, the felt need for astronomical equipment and expertise become too daunting for many teachers to do the subject justice. If astronomy was to be taught then a way around these difficulties needed to be found. Our group, working with teachers and children using the constructivism teaching approach, found that the principles of astronomy could be discovered during the day when the students are at school. Working co-operatively they measured and recorded observations of their shadows caused by the motions and interactions of the nearest star, the Sun (Sol), and our planet, Earth. Because children were involved so personally they were much more interested in the results of the study. Astronomy became enthralling and challenging for both teacher and class after applying their daytime experiences to night time viewing at home and reporting back to class. Estas actividades astronmicas diurnas surgieron de una investigacin hecha en NuevaZelandia por un grupo de maestros y astrnomos sobre los problemas de la enseanza de la Astronoma. Este trabajo mostr que la Astronoma es generalmente considerada una disciplina difcil de ensear, y tradicionalmente basada en libros, filmes y modelos. Los ms afortunados pueden haber efectuado alguna visita a un observatorio o planetario, y los ms aventajados pueden tal vez haber intentado una sesin de observacin nocturna, las cuales sufren a veces de dificultades relacionadas al mal tiempo. El problema de no tener suficientes actividades prcticas, la sensacin de poseer conocimientos inadecuados, la necesidad de disponer de equipamiento astronmico y experiencia suelen ser demasiado intimidantes para que los profesores introduzcan la materia en sus clases. Si la Astronoma iba a ser introducida, entonces era preciso encontrar una forma de resolver estas dificultades. Nuestro grupo, trabajando con maestros y alumnos dentro de un marco constructivista, encontr que los principios de la Astronoma pueden ser descubiertos durante el da, en cuanto los alumnos estn en la escuela. Trabajando de forma cooperativa los alumnos midieron y registraron observaciones de sus propias sombras causadas por los movimientos de la estrella ms prxima, el Sol, y nuestro planeta Tierra. Debido a que los alumnos se involucraran tan personalmente en las actividades, estuvieron mucho ms interesados en los resultados del estudio. La Astronoma pas a ser un desafo para el maestro y sus alumnos cuando aplicaron sus experiencias diurnas a la observacin nocturna desde sus casas, reportada despus en clase. Estas atividades astronmicas diurnas surgiram de uma investigao feita na Nova Zelndia por um grupo de professores e astrnomos a respeito dos problemas do ensino da Astronomia. Este trabalho mostrou que a Astronomia geralmente considerada uma disciplina difcil de ensinar, tradicionalmente baseada em livros, filmes e modelos. Os mais afortunados podem ter feito alguma visita a um observatrio ou planetrio, e os mais avanados podem talvez ter tentado uma sesso de observao noturna, as quais sofrem s vezes de dificuldades relacionadas ao tempo. O problema de no dispor de suficientes atividades prticas, a sensao de possuir conhecimentos inadequados, a necessidade de dispor de equipamento astronmico e experincia tem sido, em geral, demasiado intimidante para que os professores introduzam a matria nas suas aulas. Se a Astronomia ia ser introduzida, ento era preciso encontrar uma forma de resol

  13. Los Hispanos: Problemas y Oportunidades. Resumen de la Actual Situacion Demografica, Economica, Social y Politica de los Hispanos en los Estados Unidos y de las Iniciativas Tomadas por la Fundacion Ford Para Hacer Frente a las Necesidades de esta Poblacion en Aumento y Determinar sus Efectos Sobre la Sociedad Estadounidense. Documento de Trabajo de la Fundacion Ford, No. 436.

    ERIC Educational Resources Information Center

    Ford Foundation, New York, NY.

    The Hispanic population's growing impact on American society has caused the Ford Foundation to explore new Foundation initiatives. The 1980 census revealed 14.6 million Hispanics: 60% Mexican American; 14% Puerto Rican; 6% Cuban, and 20% Other. The Hispanic population in the United States is growing and is characterized by diversity; rapid growth

  14. Tratamiento del alcoholismo

    E-print Network

    Rau, Don C.

    problemas en el trabajo o en la escuela? Continu bebiendo aun cuando le causaba problemas con su familia sentirse mal por haber bebido-- a menudo interfiri con el cuidado de su hogar o familia, o le caus

  15. Intellectual Disability

    MedlinePLUS

    ... funcionar normalmente en la vida cotidiana. En los nios, los niveles de discapacidad intelectual varan ampliamente, desde problemas muy leves hasta problemas muy graves. Los nios con discapacidad intelectual puede que tengan dificultad para ...

  16. Floaters

    MedlinePLUS

    ... eye Floaters Problemas de la vista de los nios Refractive error (myopia, hyperopia, astigmatism) Retinal tears and ... de posibles problemas con los ojos de los nios The Glaucoma Learning Center Uveitis Women's Healthy Eyes ...

  17. '~nd'Vf {1 R f 0 10 A I 1 (I N ISP:tUm~ UHP:M~ UIYI~UJt4 ANN ARBOR,MICH

    E-print Network

    Rathbun, Julie A.

    processing, and input/output. The executive also decommutates the main frarne sync pattern, housekeeping count1 mode ID, and in addition, processes word 3 3 {Central Station Housekeeping) and word 46 {command the housekeeping subcom is in lock, {after two complete 90 word passes}, automatic printing will occur when either

  18. Confusion about a little observatory: the history of the first high school observatory (German Title: Verwirrung um eine kleine Sternwarte: Die Geschichte der ersten Chemnitzer Schulsternwarte )

    NASA Astrophysics Data System (ADS)

    Pfitzner, Elvira

    By means of a small watercolor, painted by a musicologist, the existence of the highschool observatory of Chemnitz was rediscovered. The small observatory was build in 1893 by means of funds and a donation: after WW I it was also used for popular education. During Nazi times, the observatory fell into neglect, and the mechanical damage made it impossible to put it back into operation after WW II The building was torn down in 1964 and forgotten.

  19. Prolegomenos a um estudo da lingua brasileira nos terreiros de origem africana (Prolegomena to a Study of the Brazilian Language of the Voodoo Rites of African Origin).

    ERIC Educational Resources Information Center

    Megenney, William W.

    Determination of the authenticity of lexical items with Sub-Saharan origin in the voodoo rites of candomble and umbanda in Brazil requires establishing a socio-historical basis for the African diaspora and the current configuration of terreiros. The terreiros demonstrate varying linguistic repertoires according to their affiliation with candomble

  20. University of Massachusetts, Department of Computer Science, Technical Report UM-CS-1999-065 Logically Central, Physically Distributed Control in a Process

    E-print Network

    Cass, Aaron G.

    -065 Logically Central, Physically Distributed Control in a Process Runtime Environment Aaron G. Cass Barbara of process definition languages. Keywords Process, Workflow, Distribution, Static Analysis, Dynamic Execution An effective process definition language must be powerful, yet clear. It must also have well defined semantics

  1. Um Sistema de Simulao 3D de Evacuao de Emergncia em Plataformas de A 3D Simulation System for Emergency Evacuation in Offshore Platforms

    E-print Network

    Barbosa, Alberto

    arquitetura uma engine de jogos (Unity). A solução desenvolvida foi testada em modelos de plataformas reais; Multidão; Engine de Jogos; Petróleo e Gás; 3D Abstract--An application for evacuation simulation using

  2. Derivation of a Large Isotopic Diffuse Sky Emission Component at 1.25 and 2.2um from the COBE/DIRBE Data

    NASA Astrophysics Data System (ADS)

    Sano, K.; Kawara, K.; Matsuura, S.; Kataza, H.; Arai, T.; Matsuoka, Y.

    2015-10-01

    Using all-sky maps obtained with COBE/DIRBE, we reanalyzed the diffuse sky brightness at 1.25 and 2.2 ? {{m}}, which consists of zodiacal light, diffuse Galactic light (DGL), integrated starlight (ISL), and isotropic emission including the extragalactic background light. Our new analysis including an improved estimate of the DGL and the ISL with the 2MASS data showed that deviations of the isotropic emission from isotropy were less than 10% in the entire sky at high Galactic latitude (| b| \\gt 35^\\circ ). We derived the DGL to 100 ?m brightness ratios of 4.79 and 1.49 n W m-2 MJy-1 at 1.25 and 2.2 ?m, respectively. The result of our analysis revealed a significantly large isotropic component at 1.25 and 2.2 ? {{m}} with intensities of 60.15 16.14 and 27.68+/- 6.21 {{n}} {{W}} {{{m}}}-2 {{sr}}-1, respectively. This intensity is larger than the integrated galaxy light, upper limits from ?-ray observation, and potential contribution from exotic sources (i.e., Population III stars, intrahalo light, direct collapse black holes, and dark stars). We therefore conclude that the excess light may originate from the local universe: the Milky Way and/or the solar system.

  3. 2011-2012 (Updated: 11/11/14 km) UM-EECS: CS-Eng Page 1 of 10 (2004-) Winter'2012 Computer Science Program -Engineering

    E-print Network

    Cafarella, Michael J.

    and be in good standing (3) Have completed or earned credit by exam or transfer for at least one course in each with the CS-Eng Chief Program Advisor (CPA) to discuss your situation. Getting Advice and Information If you

  4. Fall 2009 Summer 2013 (Updated: 6/24/14 cml) UM-EECS: Electrical Engineering 1 Fall 2009 -Summer 2013 Electrical Engineering Program

    E-print Network

    Cafarella, Michael J.

    and be in good standing (3) Have completed or earned credit by exam or transfer for at least one course in each with the EE Chief Program Advisor (CPA) to discuss your situation. Getting Advice and Information: If you

  5. 2012-2015 (Updated 11/11/14 km) UM-EECS: CS-Eng Page 1 of 8 Computer Science Program-Engineering

    E-print Network

    Cafarella, Michael J.

    by exam or transfer for at least one course in each of these categories a. Calculus (e.g. Math 115, 116 Advisor (CPA) to discuss your situation. Getting Advice and Information If you are a CS-Eng Major

  6. Updated 7/27/15 clf U-M EECS: DS-Eng Page 1 of 4 Data Science Program Engineering

    E-print Network

    Awtar, Shorya

    ) Have completed or earned credit by exam or transfer for at least one course in each of these categories with the DS-Eng Chief Program Advisor (CPA) to discuss your situation. THIS DOCUMENT DESCRIBES THE DATA

  7. Updated 4/9/15 clf U-M EECS: DS-Eng Page 1 of 4 Data Science Program Engineering

    E-print Network

    Cafarella, Michael J.

    ) Have completed or earned credit by exam or transfer for at least one course in each of these categories with the DS-Eng Chief Program Advisor (CPA) to discuss your situation. THIS DOCUMENT DESCRIBES THE DATA

  8. 2012-2016 (Updated 7/27/15 clf) UM-EECS: CS-Eng Page 1 of 8 Computer Science Program-Engineering

    E-print Network

    Awtar, Shorya

    by exam or transfer for at least one course in each of these categories: a. Calculus (e.g. Math 115, 116 Advisor (CPA) to discuss your situation. Getting Advice and Information If you are a CS-Eng Major

  9. 2015 2016 (Updated: 6/2/15 cml) UM-EECS: Electrical Engineering Page 1 of 9 (2013-)2016 Electrical Engineering Program

    E-print Network

    Cafarella, Michael J.

    and be in good standing (3) Have completed or earned credit by exam or transfer for at least one course in each with the EE Chief Program Advisor (CPA) to discuss your situation. Getting Advice and Information: If you

  10. Rtsel um Sauerstoff drfte gelst sein http://derstandard.at/druck/?id=2037748 1 of 2 5/6/2005 9:08 AM

    E-print Network

    Fennel, Katja

    Stickstoffverbindungen, einem Grundnahrungsmittel der Lebewesen, meinen Katja Fennel und Paul Falkowski von der Rutgers diesem Teufelskreis? Fennel und Falkowski meinen, die Ursache liege unter dem Meeresboden. Nach einiger

  11. A Synchrotron-Based Facility for the in-situ Location, Chemical and Mineralogical Characterization of ~10 um Particles Captured in Aerogel

    SciTech Connect

    Flynn, G.; Sutton, S; Lanzirotti, A

    2009-01-01

    NASA's Stardust mission collected dust from the coma of Comet Wild-2 on January 2nd, 2004, by direct capture into aerogel cells that flew through the dust coma at 6 km/s. Stardust collected several hundred comet particles >10 {mu}m in size. These comet samples were delivered to Earth on January 15th, 2006. We developed a facility at the National Synchrotron Light Source at Brookhaven National Laboratory (Upton, NY, USA) for the in-situ characterization of 10 {mu}m particles collected in aerogel. These analytical instruments allow us to perform extensive chemical, mineralogical, and size-frequency characterization of particles captured in aerogel. These analyses are conducted without any invasive extraction, minimizing the possibility of contamination or particle loss during preparation. This facility was used to determine the chemical composition, the oxidation state, the mineralogy and to provide an indication of the grain size of the Wild-2 particles before they were removed from the aerogel. This information provides a catalog of particle types, allowing a more reasoned allocation of the particles to subsequent investigators based on a relatively detailed knowledge of the chemical composition and mineralogy of each particle. These measurements allowed a comparison of the chemical and mineralogical properties of the Wild-2 particles with other types of extraterrestrial materials, including interplanetary dust particles and meteorites. The success of in-situ analysis for Wild 2 particles demonstrates that synchrotron-based facilities will be important for the analysis of particles collected in aerogel on future earth-orbiting satellites and spacecraft.

  12. Heavy-ion broad-beam and microprobe studies of single-event upsets in 0.20 um SiGe heterojunction bipolar transistors and circuits.

    SciTech Connect

    Fritz, Karl; Irwin, Timothy J.; Niu, Guofu; Fodness, Bryan; Carts, Martin A.; Marshall, Paul W.; Reed, Robert A.; Gilbert, Barry; Randall, Barbara; Prairie, Jason; Riggs, Pam; Pickel, James C.; LaBel, Kenneth; Cressler, John D.; Krithivasan, Ramkumar; Dodd, Paul Emerson; Vizkelethy, Gyorgy

    2003-09-01

    Combining broad-beam circuit level single-event upset (SEU) response with heavy ion microprobe charge collection measurements on single silicon-germanium heterojunction bipolar transistors improves understanding of the charge collection mechanisms responsible for SEU response of digital SiGe HBT technology. This new understanding of the SEU mechanisms shows that the right rectangular parallele-piped model for the sensitive volume is not applicable to this technology. A new first-order physical model is proposed and calibrated with moderate success.

  13. [Inhibition of decomposing leaf litter of Cinnamomum camphora on growth of Capsicum annu- um and the alleviation effect of nitrogen application].

    PubMed

    Chen, Hong; Hu, Ting-xing; Wang, Qian; Hu, Hong-ling; Jiang, Xue; Zhou, Guang-liang; Chen, Gang

    2015-02-01

    Effects of decomposing leaf litter of Cinnamomum camphora on growth, physiological and phenological traits of Capsicum annuum, and modification of these effects by nitrogen application were investigated using a pot experiment. C. camphora leaf litter was applied at rate of 0, 25, 50 100 g per pot, resulting into four treatments, i.e., CK (the control), L25, L50, and L100. Nitrogen application was firstly performed on the 39th d of decomposition (3.0 g urea was added to each pot six times). Leaf area, plant height, basal diameter and biomass production of C. annuum were all inhibited sharply by exposure to the leaf litter, and the inhibition effect increased with the increasing leaf litter in terms of both the intensity and the stability. Treated with L25, budding number reduced by 88.7% averagely during 55th-75th d, and the rate of fructification plant decreased by 40% on the 96th d of decomposition, while neither buds nor fruits were observed when exposed to L50 and L100 at that time. Pigment contents and net photosynthetic rate (Pn) were impacted due to leaf litter addition, and malonaldehyde (MDA) was only markedly promoted by L100. Inhibition on growth and development of C. annuum caused by leaf litter decomposition could be alleviated by nitrogen application. Leaf area treated with leaf litter recovered to the control level on the 52nd d after nitrogen application, and similar results appeared on the 83rd d after nitrogen application for other growth traits. Budding and fructification status were also visibly improved. PMID:26094461

  14. 860 nature neuroscience volume 3 no 9 september 2000 um-dependent refilling is reported as well9. One possibility is

    E-print Network

    Makous, Walter

    of the releasable pool. Relevant findings in adrenal chromaffin cells indicate that retrieval of vesicle mem- branes into the plasma membrane. Addi- tional work will address the mechanism of fast synaptic fatigue in shi. The pre- sent finding that shi synapses exhibit rapid synaptic fatigue sup- ports a role for dynamin

  15. Ascher, U.M. & Petzold, L.R., 1998. Computer Methods for Ordinary Differential Equations and DifferentialAlgebraic Equations, SIAM, Philadelphia.

    E-print Network

    Hanyk, Ladislav

    --428. 50 #12; References 51 Gasperini, P. & Sabadini, R., 1990. Finite element modeling of lateral. A Practical Guide to Pseudospectral Methods, Cambridge University Press, New York. Gasperini, P. & Sabadini, R. The viscoelastic relaxation of a realistically stratified earth, and a further analysis of postglacial rebound

  16. Ascher, U.M. & Petzold, L.R., 1998. Computer Methods for Ordinary Differential Equations and Differential-Algebraic Equations, SIAM, Philadelphia.

    E-print Network

    Hanyk, Ladislav

    428. 50 #12;References 51 Gasperini, P. & Sabadini, R., 1990. Finite element modeling of lateral viscosity. A Practical Guide to Pseudospectral Methods, Cambridge University Press, New York. Gasperini, P. & Sabadini, R relaxation of a realistically stratified earth, and a further analysis of postglacial rebound, Geophys. J

  17. Historia Oral, Experiencias de Aprendizagem e Enraizamento Sociocultural--Um Projeto em Curso (Oral History, Learning Experiences, and Sociocultural Setting--A Project in Process).

    ERIC Educational Resources Information Center

    Vidigal, Luis

    1995-01-01

    Examines education and childhood in Portugal. Uses oral history methods in an educational context, exploring oral statements pedagogically. Considers these statements especially suitable to maintaining aspects of collective memory and social identity, reinforcing students' national and regional identities. Suggests this is very important in

  18. Our Day-Care Centers Respect Children: Quality Criteria for Day-Care = Criterios para um Atendimento em Creches que Respeite os Direitos Fundamentais das Criancas.

    ERIC Educational Resources Information Center

    Campos, Maria Malta; Rosemberg, Fulvia

    Prepared as part of an effort to attain minimum quality standards for Brazilian day care centers, this document focuses on day-to-day provision of day care services for children from birth to 6 years old as well as broader day care administrative concerns. The first version of this document was prepared as part of a training project for day care

  19. 1.06-um optically addressable liquid crystal spatial light modulator for an HV target of the indoor laser radar system

    NASA Astrophysics Data System (ADS)

    Itoh, Hideo; Yamamoto, Yoshinov; Yamamoto, Sachiko; Iwata, Mitsuru; Nishiyama, Eiji; Matsuda, Toyonori; Watanabe, Masanobu

    2000-05-01

    Research and development project of an indoor laser radar communication system has been going on to establish one of wireless communication network environments. In the project, corner-reflecting laser communicating target `the Hyper Versatile (HV) target', is used for a free-space laser data communication with low power consumption and for accurate position detection of the target. Reflective-type Liquid Crystal Spatial Light Modulator (LC SLM) is a possible attractive component of the HV target to solve the above subjects. The indoor laser radar system should operate at eye-safe wavelength region, however, no infrared operating SLM has been released because conventional SLMs have been designed and manufactured only for visible light operations. In this paper, infrared (1.06 micrometers ) operating Parallel Aligned nematic Liquid-crystal Spatial Light Modulator (PAL- SLM) is described for an application for the indoor laser radar system. Characteristics of the SLM and numerical simulations for corner-reflecting operations are indicated.

  20. Johannes Kepler Universitt Linz, Altenberger Strae 69, 4040 Linz, sterreich, www.jku.at, DVR 0093696 JKU Pond-Race: Das verrckte Rennen um den Uni-Teich

    E-print Network

    Hochreiter, Sepp

    Johannes Kepler Universitt Linz, Altenberger Strae 69, 4040 Linz, sterreich, www.jku.at, DVR-Race ging am 11. Juni 2014 eine Benefizveranstaltung der besonderen Art an der Johannes Kepler Universitt

  1. "O Ensaio como Forma" ou Um Ensaio acerca da Teoria Critica da Sociedade ("The Essay as Form" or An Essay about the Critical Theory of Society).

    ERIC Educational Resources Information Center

    Giordano, Rosely

    2000-01-01

    Illuminates the critical theory project, with themes permeating the theoretical constructions of Frankfurt (Germany). Debates the predominance of positivism in the production of knowledge. Speculates that "the essay as form" constitutes itself as a representation of the concept of the Enlightenment. Concludes with a dialogue between Theodor Adorno

  2. I Workshop de Tec. da Inf. Apl. ao Meio Ambiente -CBComp 2003 Sis. de Apoio Tomada de Deciso DESIGN DE UM SISTEMA DE SUPORTE DECISO BASEADO

    E-print Network

    Cengarle, María Victoria

    I Workshop de Tec. da Inf. Apl. ao Meio Ambiente - CBComp 2003 Sis. de Apoio à Tomada de Decisão Workshop de Tec. da Inf. Apl. ao Meio Ambiente - CBComp 2003 Sis. de Apoio à Tomada de Decisão 1895 de conhecimento com base em modelos fornecem meios para tornar disponível o conhecimento de

  3. IV JORNADA DE EDUCAO EM SENSORIAMENTO REMOTO NO MBITO DO MERCOSUL "Um novo desafio na Educao: Preparar o cidado do Sculo 21"

    E-print Network

    Educao: Preparar o cidado do Sculo 21" 11 A 13 DE AGOSTO DE 2004 Pr-Cursos 9 e 10 de agosto de 2004 Acesso Gratuito via Internet - Potencialidade dos Dados CBERS Lus Geraldo Ferreira Hermann Teixeira, Norberto Dani, Nelson Amoreti Lisboa 15:35-15:55 25 O ENSINO DO SENSORIAMENTO NO CURSO DE GRADUAO EM

  4. Long-range micro-pulse aerosol lidar at 1.5 um with an up-conversion single-photon detector

    E-print Network

    Haiyun Xia; Guoliang Shentu; Mingjia Shangguan; Xiuxiu Xia; Xiaodong Jia; Chong Wang; Jun Zhang; Qiang Zhang; Xiankang Dou; Jianwei Pan

    2014-12-09

    A micro-pulse lidar at eye-safe wavelength is constructed based on an up-conversion single-photon detector. The ultralow noise detector enables using integration technique to improve the signal-to-noise ratio of the atmospheric backscattering even at daytime. With the pulse energy of 110uJ, the pulse repetition rate of 15 kHz, the optical antenna diameter of 100 mm and integration time of 5 minutes, a horizontal detection range of 7 km is realized. In the demonstration experiment, atmospheric visibility over 24 hours is monitored continuously, with results in accordance with the weather forecasts.

  5. Dental hard tissue modification and removal using sealed transverse excited atmospheric-pressure lasers operating at lambda=9.6 and 10.6 um

    NASA Astrophysics Data System (ADS)

    Fried, Daniel; Ragadio, Jerome N.; Akrivou, Maria; Featherstone, John D.; Murray, Michael W.; Dickenson, Kevin M.

    2001-04-01

    Pulsed CO2 lasers have been shown to be effective for both removal and modification of dental hard tissue for the treatment of dental caries. In this study, sealed transverse excited atmospheric pressure (TEA) laser systems optimally tuned to the highly absorbed 9.6 micrometers wavelength were investigated for application on dental hard tissue. Conventional TEA lasers produce an initial high energy spike at the beginning of the laser pulse of submicrosecond duration followed by a long tail of about 1 - 4 microsecond(s) . The pulse duration is well matched to the 1 - 2 microsecond(s) thermal relaxation time of the deposited laser energy at 9.6 micrometers and effectively heats the enamel to the temperatures required for surface modification at absorbed fluences of less than 0.5 J/cm2. Thus, the heat deposition in the tooth and the corresponding risk of pulpal necrosis from excessive heat accumulation is minimized. At higher fluences, the high peak power of the laser pulse rapidly initiates a plasma that markedly reduces the ablation rate and efficiency, severely limiting applicability for hard tissue ablation. By lengthening the laser pulse to reduce the energy distributed in the initial high energy spike, the plasma threshold can be raised sufficiently to increase the ablation rate by an order of magnitude. This results in a practical and efficient CO2 laser system for caries ablation and surface modification.

  6. Impa, um centro de estudos que faz bonito no Rio Publicada em 23/05/2009 s 18h04m

    E-print Network

    de Figueiredo, Luiz Henrique

    ) no mesmo ano, refora como o instituto mantm o pas entre os melhores do gnero: 1,50, em p de igualdade Aplicada (Impa) faz bonito na escala mundial de entidades do gnero. Segundo indicadores de produo

  7. Lauric Acid/Wood Fiber Blends for Shape Stable Phase Change Material

    E-print Network

    Collins, Gary S.

    in preparing wood fiber (WF) composites. The goal in developing this material is to produce a shape stabilized.) Thermal mechanical pulp of softwood fiber (Plum Creek) Wood Fiber Particle Size 23% 51% 4% 4% 3% 3% 12% 833 um 833 um 425 um 250 um 180 um 150 um 125 um Method Wood fiber (WF) was oven dried with a 2

  8. Melhoramentos no cdigo Wilson-Devinney para binrias eclipsantes

    NASA Astrophysics Data System (ADS)

    Vieira, L. A.; Vaz, L. P. R.

    2003-08-01

    A anlise de curvas de luz e velocidades radiais de sistemas binrios eclipsantes pode ser feita por meio de vrios modelos. Um desses o Modelo Wilson-Devinney (WD). Ao longo dos anos, esse modelo sofreu vrias alteraes em seus cdigos principais, com a finalidade de torn-lo mais consistente tanto fisica como numericamente. O Modelo WD tem sido melhorado de vrias maneiras em seus dois cdigos: um para a predio das curvas de luz terica e de velocidade radiais e outra para as solues destas curvas. Teoricamente, na fsica do modelo, ns introduzimos a possibilidade de levar em conta os efeitos do movimento apsidal. Numericamente, ns introduzimos a possibilidade de usar o Mtodo SIMPLEX no procedimento da soluo, como uma alternativa para o j implementado Mtodo de Mnimos Quadrados (Least Squares Method). Estas modificaes, juntamente com outras j introduzidas pelo nosso grupo anteriormente, tornam o cdigo mais eficiente na soluo das curvas de luz e de velocidade radiais de binrias eclipsantes. Como o modelo tem sido usado para analisar sistemas com componentes pr-sequncia principal (TY CrA, Casey et al. 1998, Vaz et al. 1998), SM 790, Stassun et al. 2003), este melhoramento beneficiar estes casos tambm. Apresentamos os resultados obtidos com a modificao do cdigo WD por meio do uso de dados da estrela GL Carinae, comprovando, (1) que os parmetros orbitais calculados por ns so coerentes com os obtidos anteriormente na literatura (Gimnez & Clausen, 1986) e com os obtidos por Faria (1987), e (2) que a implementao do Mtodo SIMPLEX torna o cdigo mais lento mas completamente consistente internamente e evita os problemas gerados pelo uso do Mtodo de Mnimos Quadrados, tais como impreciso no clculo das derivadas parciais e convergncia para mnimos locais.

  9. Projeto do sistema anti-ressonante da fiao dos transdutores para o detector Mario Schenberg

    NASA Astrophysics Data System (ADS)

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

    2003-08-01

    O detector de ondas gravitacionais Mario Schenberg est sendo projetado e construdo pelo grupo Grviton. Sua construo est ocorrendo no Laboratrio de Estado Slido e Baixas Temperaturas (LESBT) da Universidade de So Paulo, na cidade de So Paulo. Esse detector possui uma massa ressonante esfrica de cobre-alumnio, com 65 cm de dimetro, pesando aproximadamente 1150 Kg, suspensa por um sistema de isolamento vibracional, que se encontra em fase de testes preliminares. A real eficcia desse sistema, entretanto, s poder ser comprovada quando o detector estiver aparelhado com, pelo menos, um transdutor eletromecnico de altssima sensibilidade acoplado massa ressonante. Neste momento, no s este sistema de isolamento vibracional ser posto em teste, como o do projeto da fiao que transporta os sinais de microondas at os transdutores e destes para a pr-amplificao. Apesar dessa fiao ter sido projetada para no apresentar nenhum contato com a superfcie esfrica da antena, de maneira a no haver nenhuma transmisso de rudo vibracional do laboratrio para esta, deve-se minimizar o rudo microfnico produzido nessa fiao por oscilaes mecnicas, uma vez que ela no 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 no ter nenhuma ressonncia mecnica na faixa de freqncias de interesse para deteco (3000 - 3400 Hz). Desta forma, as vibraes nessa faixa no sero amplificadas. O projeto foi feito usando iterativamente, de maneira a otimizar os resultados obtidos, o programa de elementos finitos Msc/Nastran. Atravs de simulaes feitas neste programa, determinamos os parmetros geomtricos ideais a serem utilizados, os quais proporcionam a maior regio espectral de interesse livre de ressonncias.

  10. The Influence of Changes in Lifestyle and Mercury Exposure in Riverine Populations of the Madeira River (Amazon Basin) near a Hydroelectric Project

    PubMed Central

    Hacon, Sandra S.; Drea, Jos G.; Fonseca, Mrlon de F.; Oliveira, Beatriz A.; Mouro, Dennys S.; Ruiz, Claudia M. V.; Gonalves, Rodrigo A.; Mariani, Carolina F.; Bastos, Wanderley R.

    2014-01-01

    In the Amazon Basin, naturally occurring methylmercury bioaccumulates in fish, which is a key source of protein consumed by riverine populations. The hydroelectric power-plant project at Santo Antnio Falls allows us to compare the Hg exposure of riverine populations sparsely distributed on both sides of the Madeira river before the area is to be flooded. From 2009 to 2011, we concluded a population survey of the area (N = 2,008; representing circa 80% of community residents) that estimated fish consumption and mercury exposure of riverine populations with different degrees of lifestyle related to fish consumption. Fish samples from the Madeira river (N = 1,615) and 110 species were analyzed for Hg. Hair-Hg was significantly lower (p < 0.001) in less isolated communities near to the capital of Porto Velho (median 2.32 ppm) than in subsistence communities in the Cuni Lake, 180 km from Porto Velho city (median 6.3 ppm). Fish Hg concentrations ranged from 0.01 to 6.06 g/g, depending on fish size and feeding behavior. Currently available fish in the Madeira river show a wide variability in Hg concentrations. Despite cultural similarities, riparians showed hair-Hg distribution patterns that reflect changes in fish-eating habits driven by subsistence characteristics. PMID:24577285

  11. Experincias internacionais da aplicao de sistemas de apoio deciso clnica em gastroenterologia

    PubMed Central

    Tenrio, Josceli Maria; Hummel, Anderson Diniz; Sdepanian, Vera Lucia; Pisa, Ivan Torres; de Ftima Marin, Heimar

    2015-01-01

    Objetivo Descrever as experincias recentes com a aplicao de sistemas de apoio deciso clnica em gastroenterologia, de forma a estabelecer o nvel de desenvolvimento, testes e vantagens conferidas prtica mdica com a introduo desses softwares. Mtodos Foi realizada busca nas bases de dados PubMed, LILACS e ISI Web of Knowledge, utilizando termos relacionados sistemas de apoio deciso e gastroenterogia, incluindo artigos originais publicados no perodo entre 2005 e 2010. Foram recuperadas 104 publicaes, na busca inicial e, aps a aplicao dos critrios de incluso e excluso, foram eleitos nove estudos para leitura do texto completo. Resultados Os sistemas de apoio deciso clnica apresentam grande multiplicidade de problemas clnicos e investigao de doenas. Em 89% dos casos, so descritos modelos experimentais para o desenvolvimento de sistemas de apoio deciso clnica. A descrio dos resultados obtidos por tcnicas de inteligncia artificial em 78% das publicaes. Em dois dos estudos foram realizadas comparaes com o mdico e em apenas uma publicao um estudo controlado foi descrito, mostrando evidncias de melhorias na prtica mdica. Concluso Os estudos mostram potenciais benefcios dos sistemas de apoio deciso clnica prtica mdica, porm, estudos controlados em ambiente real devem ser realizados para comprovar esta perspectiva. PMID:26491625

  12. Ediacaran to Cambrian magmatic suites in the Rio Grande do Norte domain, extreme Northeastern Borborema Province (NE of Brazil): Current knowledge

    NASA Astrophysics Data System (ADS)

    do Nascimento, Marcos Antonio Leite; Galindo, Antonio Carlos; de Medeiros, Vladimir Cruz

    2015-03-01

    The Ediacaran-Cambrian plutonic activity is one of the most important geological features of the Rio Grande do Norte Domain (Borborema Province, NE Brazil). It is represented by several batholiths, stocks and dykes. Based on the petrographic, geochemical and geochronological characteristic of different rocks, this plutonic activity can be grouped in six separate suites: shoshonitic (Shos), porphyritic high-K calc-alkaline (PHKCalcAlk), equigranular high K calc-alkaline (EHKCalcAlk), calc-alkaline (CalcAlk), alkaline (Alk) and charnockitic alkaline (ChAlk). Geochemically, the Shos, CalcAlk and Alk suites are differentiated from the others, while ChAlc can be distinguished from the others in some diagrams. The greatest difficulty lies in distinguishing between the chemically similar PHKCalcAlk and EHKCalcAlk. To this end, existing geochronological data as well as related petrographic and textural field aspects may be used to distinguish the two mentioned suites (PHKCalcAlk and EHKCalcAlk). Petrographically, the Shos suite has composition between gabbro/diorite and quartz monzonite. Monzogranites (with subordinate granodiorites and quartz monzonites) predominate in both PHKCalcAlk and EHKCalcAlk. Calc is composed of granodiorites to tonalites. Alc is formed by alkali feldspar granites (with subordinate alkali feldspar quartz syenites and syenogranites), whereas ChAlc has quartz mangerites and charnockites. The suites were emplaced between the Ediacaran (635-541Ma) and Cambrian (541-485Ma), predominantly in the Ediacaran, based on 34 U-Pb datings (zircon, titanite, monazite and columbite-tantalite), 17 Rb-Sr (whole rock) and 1 Sm-Nd (total rock and mineral) internal isochrons. The Shos suite has U-Pb ages varying from 59916 (Poo Verde pluton) to 5797 (Acari and So Joo do Sabugi plutons), slightly older than those of the PHKCalcAlk suite, which ranges between 5914Ma (Totor pluton) and 5447Ma (So Jos de Espinharas pluton). The CalcAlk Suite has only one dated body, aged 5983Ma (Serra da Garganta pluton). The EHKCalcAlk suite U-Pb dating is younger than the aforementioned suites, ranging from 5825Ma (dykes in Dona Ins pluton) and 5278 (Cerro Cor pluton). The Alk suite was dated at 57814Ma (Caxexa pluton, Sm-Nd internal isochron) and at 5974Ma (Japi pluton, U-Pb zircon), while ChAlc U-Pb zircon ages of 60110Ma and 5935Ma (Umarizal pluton). The magmatism of Cambrian age in the Rio Grande do Norte Domain is represented by pegmatite dykes with U-Pb dating between 515 and 510Ma. xml:lang="pt" Petrograficamente, a Sute Shos possui composio entre gabros/dioritos e quartzo monzonitos. Na CalcAlcAKP predomina monzogranitos (com granodioritos e quartzo monzonitos, subordinados), semelhante a CalcAlcAKE. A CalcAlc formada por granodioritos a tonalitos. A Alc formada por lcali-feldspato granitos (com quartzo lcali-feldspato sienitos e sienogranitos, subordinados), enquanto que a AlcCh tem quartzo mangeritos e charnoquitos. As sutes foram alojadas entre o Ediacarano (635-541Ma) e o Cambriano (541-485Ma), predominando no Ediacarano, com base em 34 idades U-Pb (zirco, titanita, monazita e columbita-tantalita), 17 Rb-Sr (rocha total) e 1 iscrona interna Sm-Nd (rocha total e mineral). A Sute Shos tem idades U-Pb variando de 59916 (Plton Poo Verde) a 5797 (pltons Acari e So Joo do Sabugi). Esses valores so um pouco mais velhos do que as idades da Sute CalcAlcAKP que possui valores entre 5914Ma (Plton Totor) e 5447Ma (Plton So Jos de Espinharas). A Sute CalcAlc possui apenas um corpo datado, com idade de 5983Ma (Plton Serra da Garganta). A Sute CalcAlcAKE possui idades U-Pb mais jovens que as sutes anteriores, com valores entre 5825Ma (diques no Plton Dona Ins) e 5278 (Plton Cerro Cor). A Sute Alc foi datada em 57814Ma (Plton Caxexa, iscrona interna Sm-Nd) e 5974Ma (Plton Japi, U-Pb em zirco),

  13. Apparent Motion of the Sun, Shadows of Objects and Measurement of Time in the View of Seventh Grade Students of Middle School. (Breton Title: Movimento Aparente do Sol, Sombras dos Objetos e Medio do Tempo na Viso de Alunos do Stimo Ano do Ensino Fundamental.) Movimiento Aparente del Sol, Sombras de los Objetos y Medicin del Tiempo en la Visin de Estudiantes del Sptimo Grado del Ciclo Pirmario

    NASA Astrophysics Data System (ADS)

    Iria Machado, Daniel

    2013-07-01

    The apparent motion of the Sun on the celestial sphere and the behavior of the shadows of objects over time are observable phenomena in everyday life. However, students often do not have a proper understanding of such occurrences, and can even display misconceptions about them. Therefore, we performed a research in order to know students' notions about these subjects and to evaluate the contribution to their understanding brought about by an activity performed with an interactive sundial in an informal learning environment. We investigated the ideas of 43 students from the seventh grade of middle school by applying a test with open questions before and after an activity with an analemmatic sundial, conducted by a monitor. A significant proportion of students were initially unaware of most of the phenomena treated. The intervention performed helped the students to assimilate new concepts, providing the contact with new phenomena and to a lesser degree, the development of explanations about them, indicating an educational potential of this action. However, the contribution to the understanding of some of the ideas explored was small, pointing to the need to make additional observations, studies and discussions. O movimento aparente do Sol na esfera celeste e o comportamento das sombras dos objetos com o passar do tempo so fenmenos observveis no dia a dia. No entanto, muitas vezes os estudantes no possuem uma compreenso adequada de tais ocorrncias, podendo inclusive exibir concepes alternativas a seu respeito. Por isso, efetuou-se uma pesquisa com o intuito de conhecer as noes dos alunos sobre esses temas e avaliar a contribuio para seu entendimento propiciada por uma atividade feita com um relgio de Sol interativo, em um ambiente de ensino informal. Foram investigadas as ideias de 43 alunos do stimo ano do Ensino Fundamental mediante a aplicao de um teste com questes abertas antes e depois de uma atividade com um relgio de Sol analemtico, conduzida por um monitor. Uma proporo significativa de estudantes desconhecia inicialmente a maioria dos fenmenos tratados. A interveno realizada colaborou para uma parte dos alunos assimilar novos conceitos, propiciando o contato com novos fenmenos e, em menor grau, a elaborao de explicaes a respeito destes, indicando um potencial educativo dessa ao. Porm, a contribuio para o entendimento de algumas das ideias exploradas foi pequena, apontando para a necessidade de se fazer observaes, estudos e discusses complementares. El movimiento aparente del Sol en la esfera celeste y el comportamiento de las sombras de los objetos a lo largo del tiempo son fenmenos observables en la vida cotidiana. Sin embargo, los estudiantes a menudo no tienen una adecuada comprensin de dichos problemas, e incluso pueden mostrar conceptos errneos acerca de ellos. Por lo tanto, se realiz una investigacin a fin de conocer las nociones de los estudiantes acerca de estas cuestiones y evaluar la contribucin a su comprensin proporcionada por una actividad realizada con un reloj de Sol interactivo, en un entorno informal de aprendizaje. Se investigaron las ideas de 43 estudiantes del sptimo grado del ciclo primario mediante la aplicacin de un test con preguntas abiertas antes y despus de una actividad con un reloj de Sol analemtico, dirigida por un monitor. Una proporcin significativa de los estudiantes inicialmente desconoca la mayora de los fenmenos tratados. La intervencin realizada contribuy para que los estudiantes asimilasen nuevos conceptos, proporcionando el contacto con nuevos fenmenos y, en menor medida, desarrollasen explicaciones acerca de estos, lo que indica un potencial educativo de esta accin. Sin embargo, la contribucin a la comprensin de algunas de las ideas exploradas fue pequea, lo que apunta a la necesidad de hacer observaciones, estudios y debates adicionales.

  14. Astrophysics in Schools: Playing with Observational Data. (Spanish Title: Astrofsica Escolar: Jugando con Datos Observacionales.) Astrofsica Escolar: Brincando com Dados Observacionais

    NASA Astrophysics Data System (ADS)

    Navone, Hugo D.; Scancich, Miriam; Vzquez, Rubn A.

    2011-07-01

    The use of observational records in the design of teaching sequences in Astrophysics in High Schools is quite uncommon. It is also uncommon the thematic approach within the context provided by Nature of Science. Besides these shortcomings, we should also consider the lack of proposals to use the computer as a laboratory from which nature is studied. These aspects expose the existence of a disconnection between school science and scientist's science, establishing the need for simple educational projects that promote interdisciplinary dialogue between the two fields of knowledge. Based on these assumptions, this paper presents the school reformulation of the redshift-distance problem as addressed by Hubble in his diagram, and explores the main educational dimensions emerging from it. The proposal is directed not only for senior students of high school and/or early 1st year students at University level, but also for students and teachers from teacher training colleges. Practical evidence shows that this proposal is viable, mobilizes interests about issues of Astrophysics and promotes a ludic and cooperative character among students. La utilizacin de registros observacionales en el diseo de secuencias didcticas en Astrofsica Escolar no es algo usual en el mbito de la escuela media. Tampoco lo es el abordaje de temticas desde el contexto que provee Naturaleza de la Ciencia. A estas carencias se le suma la falta de propuestas que hagan intervenir a la computadora como un laboratorio desde el cual se interpela a la naturaleza. Los aspectos mencionados exponen la existencia de un desajuste entre ciencia escolar y ciencia experta estableciendo la necesidad de elaborar proyectos educativos sencillos que promuevan el dilogo interdisciplinar entre ambos campos del conocimiento. Partiendo de estos presupuestos, en este trabajo se presenta la reformulacin escolar del problema abordado por Hubble -que diera lugar al diagrama que lleva su nombre- y se exploran las principales dimensiones educativas que emergen del mismo. La propuesta est destinada a alumnos del ltimo ao de nivel medio y primeros aos de la universidad, y a estudiantes y profesores de Institutos de Formacin Docente. Las puestas en prctica realizadas muestran que la propuesta es viable, que moviliza inquietudes en torno a temticas de Astrofsica y que se fortalece al adquirir un carcter ldico y cooperativo. A utilizao de registros observacionais na construo de seqncias didticas em Astrofsica Escolar no algo usual no ensino mdio. Tampouco o uma abordagem de temticas dentro do contexto da Natureza da Cincia. Agrega-se a estas carncias a falta de propostas que estimulem a utilizao do computador como um laboratrio para estudar a natureza. Os aspectos mencionados expem a existncia de um desajuste entre cincia escolar e cincia avanada, estabelecendo a necessidade de elaborar projetos educativos simples que promovam o dilogo interdisciplinar entre ambos campos do conhecimento. Partindo destes pressupostos, este trabalho apresenta a reformulao escolar do problema abordado por Hubble -a relao entre redshift e distncia das galxias- e se exploram as principais dimenses educativas que emergem do mesmo. A proposta est destinada a alunos do ltimo ano do nvel mdio, primeiros anos do curso superior e a estudantes e professores de Institutos de Formao Docente. As atividades prticas realizadas mostram que a proposta vivel, que mobiliza inquietudes em torno da temtica e da Astrofsica e que se fortalece ao adquirir um carter ldico e cooperativo.

  15. CMNE/CILAMCE 2007 Porto, 13 a 15 de Junho, 2007

    E-print Network

    Colominas, Ignasi

    ´oviles para la simulaci´on de problemas de mec´anica de fluidos con superficie libre. Asimismo se presentan fluidos en astrof´isica [4],[5], y su extensi´on a problemas en la mec´anica de s´olidos fue iniciada por PART´ICULAS PARA LA SIMULACI´ON DE PROBLEMAS EN DIN´AMICA DE FLUIDOS: COMPARACI´ON CON RESULTADOS DE

  16. Complicaciones gastrointestinales (PDQ)Versin para pacientes

    Cancer.gov

    Resumen de informacin revisada por expertos acerca del estreimiento, impaccin, obstruccin intestinal y diarrea como complicaciones del cncer o su tratamiento. Se discute el manejo de estos problemas.

  17. O mtodo WKB exposto no ltimo captulo no pode ser aplicado diretamente a sistemas genricos com mais de um grau de liberdade. A razo para isso ficar mais clara no captulo 6, onde trataremos de

    E-print Network

    de Aguiar, Marcus A. M.

    ¢¡ £¢¤¦¥§¡©¨ ¢¢ ¢¡ ©¨©§¢¢¢ ¢©¨ O método WKB exposto no último capítulo não pode ser aplicado) quanto sobre as funções de onda (os resíduos). Como discutimos no capítulo 1, G± pode ser obtida da intervalo de tempo finito pode ser expresso em termos de propagadores infinitesimais. O intervalo t é

  18. Spectral reflectance properties (0.4-2.5 um) of secondary Fe-oxide, Fe-hydroxide, and Fe-sulfate-hydrate minerals associated with sulfide-bearing mine waste

    USGS Publications Warehouse

    Crowley, J.K.; Williams, D.E.; Hammarstrom1, J.M.; Piatak, N.; Mars, J.C.; Chou, I-Ming

    2006-01-01

    Fifteen Fe-oxide, Fe-hydroxide, and Fe-sulphate-hydrate mineral species commonly associated with sulphide bearing mine wastes were characterized by using X-ray powder diffraction and scanning electron microscope methods. Diffuse reflectance spectra of the samples show diagnostic absorption features related to electronic processes involving ferric and/or ferrous iron, and to vibrational processes involving water and hydroxyl ions. Such spectral features enable field and remote sensing based studies of the mineral distributions. Because secondary minerals are sensitive indicators of pH, Eh, relative humidity, and other environmental conditions, spectral mapping of these minerals promises to have important applications to mine waste remediation studies. This report releases digital (ascii) spectra (spectral_data_files.zip) of the fifteen mineral samples to facilitate usage of the data with spectral libraries and spectral analysis software. The spectral data are provided in a two-column format listing wavelength (in micrometers) and reflectance, respectively.

  19. The controversy between Alexander Friedmann and Albert Einstein about the possibility of a non-static world (German Title: Die Kontroverse zwischen Alexander Friedmann und Albert Einstein um die Mglichkeit einer nichtstatischen Welt)

    NASA Astrophysics Data System (ADS)

    Singer, Georg

    Einstein's treatment of the cosmological problem as well as his unshakeable adherence to his own static solution of the complete field equations was throughout determined by Ernst Mach's idea of relativity of inertia. Friedmann, however, like Eddington, Weyl and others did not consider Mach's principle to be a part of general relativity, and so he regarded a time dependent developing spatial geometry as being consistent with world matter at relative rest. In his final statement to the controversy, Einstein acknowledged just formal correctness of Friedmann's results. Actually his criticism was not due ``to a miscalculation'', as he was ready to admit, but was owed to a fundamental fixed idea which continued to exist and which was the cause of his disavowal of physical significance of dynamical solutions.

  20. The UM students from Montana listed below made the spring semester 2015 Dean's List. Double asterisks after a name indicate the student earned a GPA of 4.0. A single asterisk

    E-print Network

    Vonessen, Nikolaus

    Nygaard,* Shareena O'Dell* ANACONDA: Ashley Flachmeyer,* Kiernan Gallagher,* Carly Johns,* Lisa Laslovich,* Kaitlin Wagner,* Katy Warner,* McKenzie Watterson,* Chrislin Webb,**Phoebe Webb,** Carter Webber,* Ryan

  1. Michael Mstlin's role in the polemic against the calendar reform of pope Gregor XIII. (German Title: Die Rolle Michael Mstlins in der Polemik um die Kalenderreform von Papst Gregor XIII)

    NASA Astrophysics Data System (ADS)

    Hamel, Jrgen

    Because of theological resistance, the calendar reform of 1582 was introduced only in countries under catholic rule. Michael Mstlin is found among the spokesmen of opposition against this feared attempted of the pope to gain influence in the protestant church, nevertheless, Mstlin had no doubt that a calendar reform was necessary. This article retraces Mstlin's argumentation and puts it into context with contemporary discussions about a calendar reform.

  2. [Malaria and hematological aspects among residents to be impacted by reservoirs for the Santo Antnio and Jirau Hydroelectric Power Stations, Rondnia State, Brazil].

    PubMed

    Katsuragawa, Tony Hiroshi; Cunha, Roberto Penna de Almeida; de Souza, Daniele Cristina Apoluceno; Gil, Luiz Herman Soares; Cruz, Rafael Bastos; Silva, Alexandre de Almeida E; Tada, Mauro Shugiro; da Silva, Luiz Hildebrando Pereira

    2009-07-01

    In Rondnia State, Brazil, two new hydroelectric plants, Santo Antnio and Jirau, are scheduled for construction on the Madeira River, upriver from the State capital, Porto Velho. The current study analyzes malaria prevalence before the construction and provides information on the possible impacts of malaria burden related to the influx of thousands of persons attracted by direct and indirect employment opportunities. According to the findings, malaria is present throughout the region, with varying prevalence rates. The existence of potential asymptomatic malaria carriers among the local population may be epidemiologically relevant and should be considered in the malaria control programs organized by public authorities and companies responsible for building the power plants, aimed at early diagnosis and treatment, vector control, water supply, and infrastructure in the urban areas. PMID:19578569

  3. Uso de modelos mecnicos em curso informal de astronomia para deficientes visuais. Resgate de uma experincia

    NASA Astrophysics Data System (ADS)

    Tavares, E. T., Jr.; Klafke, J. C.

    2003-08-01

    O presente trabalho prope-se a resgatar uma experincia que teve lugar no Planetrio de So Paulo nos anos 60. Em 1962, o Sr. Accio, ento com 37 anos, deficiente visual desde os 27, passou a assistir s aulas ministradas pelo Prof. Aristteles Orsini aos integrantes do corpo de servidores do Planetrio. O Sr. Accio era o nico deficiente da turma e, embora possusse conhecimentos bsicos e relativamente avanados de matemtica, enfrentava dificuldades na compreenso e acompanhamento da exposio, como tambm em estudos posteriores. Com o intuito de auxili-lo na superao desses problemas, o Prof. Orsini solicitou a construo de modelos mecnicos que, atravs do sentido do tato, permitissem o acompanhamento das aulas e a transposio do modelo para o "constructo" mental. Essa prtica mostrou-se to eficaz que facilitou sobejamente o aprendizado da matria pelo sujeito. O Sr. Accio passou a integrar o corpo de professores do Planetrio/Escola Municipal de Astrofsica, tendo ficado responsvel pelo curso de "Introduo Astronomia" por vrios anos. Alm disso, a experincia foi to bem sucedida que alguns dos modelos tiveram seus elementos constitutivos pintados diferencialmente para serem utilizados em cursos regulares do Planetrio, tornando-se parte integrante do conjunto de recursos didticos da instituio. pensando nessa eficcia, tanto em seu objetivo original permitir o aprendizado de um deficiente visual quanto no subsidirio recurso didtico sistemtico da instituio que decidimos resgatar essa experincia. Estribados nela, acreditamos ser extremamente produtivo, em termos educacionais, o aperfeioamento dos modelos originais, agora resgatados e restaurados, e a criao de outros que pudessem ser utilizados no ensino dessa cincia a deficientes visuais.

  4. Carla Guerrini 2008/11/18 Integrazione numerica

    E-print Network

    Guerrini, Carla

    base di funzioni per tale spazio, chiamate funzioni CARDINALI, per cui vale i(xj) = 1 se i = j 0 se i = j Le funzioni cardinali risolvono il problema di interpolazione per i punti (xi, yi), i = 0, 1'interpolante espresso nella base delle funzioni cardinali permette di esprimere banalmente la soluzione di un problema

  5. Carla Guerrini 1 -3 -2 -1 0 1 2 3

    E-print Network

    Guerrini, Carla

    funzioni per tale spazio, chiamate funzioni CARDINALI, per cui vale i(xj) = 1 se i = j 0 se i = j Le funzioni cardinali risolvono il problema di interpolazione per i punti (xi, yi), i = 0, 1, . . . , n'interpolante espressa nella base delle funzioni cardinali permette di esprimere ba- nalmente la soluzione di un problema

  6. Automi e Linguaggi Formali Problemi intrattabili, classi P e NP

    E-print Network

    Sperduti, Alessandro

    Automi e Linguaggi Formali Problemi intrattabili, classi P e NP A.A. 2014-2015 Alessandro Sperduti-2015 Docente: Alessandro Sperduti 2 of 30 #12;Classe P Una Tm M ha complessit`a in tempo T(n) se, dato un input-2015 Docente: Alessandro Sperduti 3 of 30 #12;Esempio di problema in P Problema: trovare un albero di copertura

  7. Diofanto y Fermat Diofanto vivio en el siglo III, de su Aritmetica nos han llegado seis libros de un total

    E-print Network

    Cilleruelo, Javier

    Diofanto y Fermat Diofanto vivio en el siglo III, de su Aritmetica nos han llegado seis libros de un total de trece que componian la obra. Este libro consiste en una sucesion de problemas en losumero lo que hoy llamamos numeros racionales positivos. Como ejemplos de problemas del libro de Diofanto

  8. La Gaceta de la RSME, Vol. 00 (0000), Num. 0, Pags. 19 1 El diablo de los numeros

    E-print Network

    Waldschmidt, Michel

    Pietro Mengoli en 1644 y Leonhard Euler encontro en 1735 la respuesta correcta, la impresionante fon no rigurosa de Euler para el problema de Basilea. Euler empleo el desarrollo de Taylor de sen(x) para problema de Basilea. Parece dificil completar el razonamiento no riguroso de Euler, incluso moviendo- nos

  9. Parte de Algoritmos de la asignatura de Programacin

    E-print Network

    Gimnez, Domingo

    que pueda aplicarse la tcnica divide y vencers necesitamos: El problema original debe poder(Origen,Destino): Si (Origen y Destino en columnas consecutivas) Devolver LCS de Origen a Destino en otro caso Medio=ndice medio entre Origen y Destino LCS(Origen,Medio) LCS(Medio,Destino) El problema es que no conocemos el

  10. Universidad Autnoma de Madrid Cursos de Formacin en Competencias Profesionales 2015-2016

    E-print Network

    Autonoma de Madrid, Universidad

    Universidad Autnoma de Madrid UAM Cursos de Formacin en Competencias Profesionales 2015.cursosformacion@uam.es CURSO DE SOLUCIN CREATIVA DE PROBLEMAS PRESENTACIN Estamos acostumbrados a resolver problemas de colaboracin. Durante el curso se trabajarn herramientas y procesos para (1) comprender situaciones

  11. Mixed-Methods Study that Examines Nine Science Teachers' Perceptions of Slooh Robotic Telescope for Teaching Astronomy. (Breton Title: Mtodos Mistos de Estudo que Examinam a Percepo de Nove Professores de Cincias sobre o Telescpio Robtico Slooh Para Ensino de Astronomia.) Mtodos Mixtos de Estudio que Examinan la Percepcion de Nueve Profesores de Ciencias sobre EL Telescopio Robtico Slooh Para la Enseanza de la Astronoma

    NASA Astrophysics Data System (ADS)

    Gershun, Daniel C.; Slater, Timothy F.; Berryhill, Katie J.

    2014-07-01

    Although previous studies show that robotic telescopes have the potential to enhance student learning, there is comparatively little research that focuses on teacher perceptions of this technology. This study investigates: "what is the academic merit of using SLOOH robotic telescopes to teach astronomy as perceived by science teachers?" Our sample consists of nine science teachers of students aged 13-18 years. Pre- and post-tests, interviews, and surveys were collected during two weeks of a summer online course about robotic telescopes. While pre and post-tests do not reveal a statistically significant gain in astronomy content knowledge, analysis of qualitative data reveals five themes which describe the most important aspects of using SLOOH according to participants: "Images," "Interface," "Classroom Application," "Instructor Impact," and "Logistical Issues." Analysis of these themes suggests that SLOOH can provide an interactive and social learning environment with capabilities to incorporate crossdisciplinary themes. Embora estudos anteriores mostram que os telescpios robticos tm o potencial de melhorar a aprendizagem dos alunos, h relativamente pouca investigao focada nas percepes de professores a respeito desta tecnologia. Este estudo investiga: "qual o mrito acadmico da utilizao de telescpios robticos Slooh para ensinar astronomia, tal como percebido pelos professores de cincias?" Nossa amostra composta por nove professores de cincias de estudantes com idades entre 13-18 anos pr e ps-testes, entrevistas, e levantamentos foram coletados durante duas semanas de um curso on-line de vero sobre telescpios robticos. Enquanto os testes pr e ps no revelaram um ganho estatisticamente significativo no conhecimento do contedo astronomia, a anlise de dados qualitativos revela cinco temas que descrevem os aspectos mais importantes da utilizao Slooh de acordo aos participantes: "Imagens", "Interface", "Aplicao em sala de aula", "Impacto no Instrutor" e "Questes logsticas". A anlise desses temas sugere que Slooh pode proporcionar um ambiente de aprendizagem interativo e social com capacidade de incorporar temas interdisciplinares. Aunque estudios previos muostraron que los telescopios robticos tienen el potencial de mejorar el aprendizaje del estudiante, hay relativamente poca investigacin centrada en las percepciones de ls profesores respecto de esta tecnologa. Este estudio investiga: "cul es el mrito acadmico de la utilizacin de telescopios robticos SLOOH para ensear astronoma segn la percepcin de los profesores de cincias?" Nuestra muestra est formada por nueve profesores de ciencias de estudiantes entre 13 a 18 aos pre-y post-tests, entrevistas, y. encuestas se recogieron durante dos semanas de un curso on-line de verano sobre los telescopios robticos. Si bien ls tests antes y despus de las pruebas no revelaron un aumento estadsticamente significativo en el conocimiento de contenido astronmico, el anlisis de ls datos cualitativos revel cinco temas que describen los aspectos ms importantes de la utilizacin de SLOOH de acuerdo con los participantes:. "Imgenes", "Interface", "aplicacin en el aula", "Impacto en el Instructor" y "problemas logsticos" . El anlisis de estos temas sugiere que SLOOH puede proporcionar un ambiente de aprendizaje interactivo y social, con capacidad para incorporar temas transversales.

  12. Resonances and Tides in Natural Satellites Systems. (Breton Title: Ressonncias e Mars em Sistemas de Satlites Naturais.) Resonancias y Mareas en Sistemas de Satlites Naturales

    NASA Astrophysics Data System (ADS)

    Callegari, Nelson, Jr.

    2006-12-01

    In this work we describe some aspects of the dynamics of the mean-motion resonances. Emphasis to the case of resonances between regular satellites of the giant planets will be given, even so some aspects of the physics of the resonances in extra-solar planetary systems are also briefly treated. The role of the resonances in satellites systems is discussed through examples, showing how certain resonances, and its relations with the tidal dissipation effects, can be the key of the explanation of some phenomena still not explained in the Solar System. Amongst some examples we highlight the problem of the resurfacing of Enceladus, the existence of active volcanoes in Io, and the possible existence of the subsurface ocean in Europe. This work has as objective the divulgation of some topics in Celestial Mechanics and Planetary Sciences for an undergraduate public in exact sciences, as Astronomy and Physics, and not their detailed description. Neste trabalho descrevemos alguns aspectos da dinmica de ressonncias de movimentos mdios. Ser dada nfase maior ao caso de ressonncias entre satlites regulares dos planetas gigantes, embora alguns aspectos da fsica das ressonncias em sistemas planetrios extra-solares tambm sejam discutidos brevemente. A importncia do estudo de ressonncias em sistemas de satlites discutida mais detalhadamente atravs de exemplos, mostrando como certas ressonncias e suas relaes com efeitos de dissipao de mar podem ser a chave de parte da explicao de alguns fenmenos ainda no explicados no Sistema Solar. Dentre vrios exemplos destacamos o problema da remodelagem da superfcie do satlite Enceladus, a existncia de vulces ativos em Io, e a possvel existncia do oceano subterrneo em Europa. Este trabalho tem como objetivo a divulgao de alguns tpicos de Mecnica Celeste e Planetologia para um pblico de nvel de graduao em disciplinas na rea de exatas, em especial Astronomia e Fsica, e no a descrio detalhada dos conceitos aqui discutidos. Describimos en este trabajo algunos aspectos de la dinmica de resonancias de movimientos promedio. Ser dado un nfasis mayor al caso de las resonancias entre satlites regulares de los planetas gigantes, aunque tambin son discutidos brevemente algunos aspectos de la fsica de resonancias en sistemas panetarios extrasolares. La importancia del estudio de las resonancias en sistemas de satlites es discutida ms detalladamente atravs de ejemplos, mostrando cmo ciertas resonancias y los efectos de disipacin por mareas pueden ser la clave de parte de la explicacin de algunos fenmenos an no comprendidos en el Sistema Solar. Entre varios ejemplos se destacan el problema de la superficie remodelada del satlite Enceladus, la existencia de volcanes activos en Io y la posible existencia de un ocano subterrneo en Europa. Este trabajo tiene como objetivo la divulgacin de algunos tpicos en Mecnica Celeste y Planetologa para un pblico universitario de ciencias exactas, en particular Astronoma y Fsica, y no la descripcin detallada de los conceptos aqu discutidos.

  13. Reviving Erathostenes. (Breton Title: Revivendo Eratstenes.) Reviviendo a Eratstenes.

    NASA Astrophysics Data System (ADS)

    Pereira, Paulo Cesar R.

    2006-12-01

    As part of the commemorations of the International Year of the Physics and having as its main objective to introduce students to the scientific method, the Rio de Janeiro Planetarium Foundation, in partnership with many institutions of Brazil and Europe, coordinated the activity "Reviving Eratosthenes" whose objective was the determination of the Earth's circumference. We used the famous procedure adopted by Eratosthenes more than 2000 years ago, with some adaptations. This work considers and analyzes the method used by us, aiming the application in schools. The use of places in different meridians allows a better understanding of the abstract concepts such as geographic coordinate and time zones. We obtained reasonably precise results, which improve for pairs of distant cities. Finally, one of the most important conclusions achieved by the students involved is the importance of the cooperation (international in this case) to solve problems. Fazendo parte das comemoraes do Ano Internacional da Fsica e tendo como principal objetivo introduzir estudantes do ensino mdio ao mtodo cientfico, a Fundao Planetrio da Cidade do Rio de Janeiro, em parceria com diversas instituies do Brasil e da Europa, coordenou a atividade "Revivendo Eratstenes" cujo objetivo foi a determinao da circunferncia da Terra. Para isso, utilizou-se um procedimento semelhante ao empregado pelo sbio Eratstenes h mais de 2.000 anos, com algumas adaptaes. Este trabalho prope e analisa o mtodo que empregamos, visando a aplicao em escolas. A possibilidade de se trabalhar com locais em diferentes meridianos permite uma melhor compreenso dos conceitos mas abstratos, como coordenadas e fusos horrios. A preciso dos resultados bastante razovel, melhorando para cidades bem afastadas. Finalmente, uma das concluses mais importantes a percepo, por parte dos estudantes, da importncia da colaborao (neste caso, internacional) para resolver problemas. Como parte de las conmemoraciones del Ao Internacional de la Fsica y con el objetivo principal de introducir a los estudiantes secundarios al mtodo cientfico, la Fundacin Planetario Rio de Janeiro, en conjunto con diversas instituciones de Brasil y de Europa, coordin la actividad denominada "Reviviendo a Eratstenes" cuyo objetivo consisti en la determinacin de la cincunferencia de la Tierra. Para esto se utiliz un procedimiento semejante al empleado por Eratstenes hace ms de 2.000 aos, con algunas adaptaciones. Este trabajo expone y analiza el mtodo empleado, con la intencin de aplicarlo en las escuelas. La posibilidad de trabajar en lugares situados en diferentes meridianos permite una mejor comprensin de los conceptos ms abstractos, tales como coordenadas y husos horarios. La precisin de los resultados result razonable, mejorando para aquellas ciudades mas apartadas. Finalmente, una de las conclusiones ms importantes es la de la percepcin, por parte de los estudiantes, de la importancia de la colaboracin (en este caso internacional) para resolver problemas.

  14. Application of Three-Dimensional Models for the Teaching of Time Zones. (Breton Title: Aplicao de Modelos Tridimensionais Para o Ensino de Fusos Horrios.) Aplicacin de Modelos Tridimensionales Para la Enseanza de Husos Horarios

    NASA Astrophysics Data System (ADS)

    Azevedo Sobreira, Paulo Henrique

    2012-07-01

    There are several interesting astronomical topics that must be addressed in the High School and Elementary/Middle School in the disciplines of Geography and of Sciences. Among them, the topic of time zones which is one of the most important to understand the correlation of the Earth's rotation and its implications on daily activities of citizens in local scale, regional and global scales which involve problems of time differences. For the teaching of time zones in the lessons of Geography, for example, there are bi-dimensional representations of thematic maps of world time zones, textbooks and atlas. It happens that teachers face some difficulties to permit its students to view three-dimensionally this astronomical phenomenon from the textbooks available in schools. The aim of this paper is to present two proposals with low-cost materials, which allow the preparation of three-dimensional models for the teaching of time zones. H vrios temas astronmicos interessantes que devem ser trabalhados nos Ensinos Mdio e Fundamental, nas disciplinas de Geografia e de Cincias. Entre eles, o tema dos fusos horrios que um dos mais importantes para se correlacionar a rotao da Terra e suas implicaes nas atividades cotidianas dos cidados em escala local, regional e global, que envolvem problemas de diferenas horrias. Para o ensino dos fusos horrios nas aulas de Geografia, por exemplo, h representaes bidimensionais de mapas temticos de fusos horrios mundiais, nos livros didticos e nos atlas. Ocorre que os professores enfrentam algumas dificuldades para possibilitar aos seus alunos a viso tridimensional deste fenmeno astronmico, a partir dos materiais didticos disponveis nas escolas. O objetivo deste trabalho apresentar duas propostas para a confeco de materiais de baixo custo, que possibilitem a elaborao de modelos tridimensionais para o ensino dos fusos horrios. Hay algunos temas astronmicos interesantes que se deben trabajar en la enseanza media y bsica, en las asignaturas de Geografa y de Ciencias. Entre ellos, el de los husos horarios que es uno de los ms importantes para correlacionar la rotacin de la Tierra y sus implicaciones en las actividades diarias de los ciudadanos en escala local, regional y global, y en general, cuestiones que implican problemas de las diferencias horarias. Para la enseanza de los husos horarios en las clases de Geografa, por ejemplo, hay representaciones bidimensionales de los mapas temticos de husos horarios mundiales, en libros y atlas didcticos. Sin embargo, los profesores se enfrentan con algunas dificultades para hacer posible que sus alumnos tengan una visin tridimensional de este fenmeno astronmico, usando los materiales didcticos disponibles en las escuelas. El objetivo de este trabajo es presentar la construccin de dos propuestas de materiales de bajo costo, que hacen posible la elaboracin de modelos tridimensionales para la enseanza de los husos horarios.

  15. ASIGNATURA DE Gestin de ecosistemas acuticos

    E-print Network

    Murcia, Universidad de

    profesional: Profesora Titular de Universidad E-mail: jvelasco@um.es Pginas Web: http://www.um.es/ecoaqua El, Dep. Ecologa, ala izquierda 2 cuatrimestre L, Ma y Mi 10 11 868887009, Fac. Biologa, 4 planta, Dep@um.es Pginas Web: http://www.um.es/ecoaqua El profesor est adscrito a las tutoras electrnicas. Horario de

  16. FORMA DE REGISTRO INDIVIDUAL Primer Nombre: Apellido

    E-print Network

    actividad fsica de Camine a Travs de Tejas! por el propsito de la salud personal. Entiendo que debo tener aprobacin mdica de mi profesional de salud si yo: * tengo problemas crnicos de la salud como

  17. Observaciones: -Recuerde redactar el examen solo. Utilice un procesador de palabras o un formateador de texto.

    E-print Network

    Meza, Oscar J.

    soluciones a los problemas deben ser razonadas detalladamente. 1) Conteo: a) Tenemos n libros azules y m número de maneras de colocar alineados en un estante los n+m libros. (La idea de aplicar los principios

  18. Preventing Diabetes Problems: What You Need to Know

    MedlinePLUS

    ... tambin conocida como glucosa en la sangre, con el tiempo puede causar problemas de diabetes. Un nivel ... conducir a ataques al corazn y derrames cerebrales. El dao a los ojos puede provocar prdida de ...

  19. Overactive Thyroid: What You Need to Know

    MedlinePLUS

    ... descubrir los problemas de la tiroides? Qu es el hipertiroidismo? El hipertiroidismo, una afeccin llamada tambin tiroides hiperactiva, ocurre ... tiroides produce ms hormona tiroidea de lo que el cuerpo necesita. La tiroides es una glndula en ...

  20. Complicaciones gastrointestinales (PDQ)Versin para profesionales de salud

    Cancer.gov

    Resumen de informacin revisada por expertos acerca del estreimiento, la retencin fecal, la obstruccin intestinal y la diarrea como complicaciones del cncer o su tratamiento. Se discute el manejo de estos problemas.

  1. An Open-Source Learning Content Management and Assessment System

    E-print Network

    of randomizing online problems ( distintos problemas gerados online ) Shared Resource Library #12;Shared Resource Course Management #12;Resource Assembly "Supermarket" Shopping Cart Selecionando e Colecionando sharing effectiveness of online homework online student discussions gender differences #12;Resource

  2. Introduzione LA MATEMATICA PRESSO I GRECI

    E-print Network

    Gerla, Giangiacomo

    omogenee (al posto dei numeri reali) ... 25 8. La teoria delle proporzioni (al posto delle operazioni .................................................. 127 9. I numeri reali tramite le sezioni .................................................... 130 10. I numeri reali tramite le successioni di Cauchy .......................... 133 11. Il problema della

  3. UNIVERSIT DI BRESCIA FACOLT DI INGEGNERIA

    E-print Network

    Cassinis, Riccardo

    interfacciato con una videocamera Philips SPC1005NC con risoluzione di 1.3 MP reali e 5 MP virtuali ottenuti affrontato Segue un'analisi teorica del problema della localizzazione con vincoli reali, quali i limiti

  4. REFLEXIONES DE UN MATEMATICO SOBRE LA DIALECTICA

    E-print Network

    problemas importantes de la relacion entre la dialectica y las ciencias. 2.1. G.G.Granger, citando a Hegel absoluto de Hegel. Puedo tambien estar de acuerdo (al menos a grandes rasgos) con la opinion de que \\el

  5. Gli interpreti degli interpreti

    E-print Network

    Horvath, Agnes; Szakolczai, Arpad

    2008-05-25

    catena; non possiede creativit?, non genera, recita solo, non sapendo neanche che cosa fa esattamente e perch?. ? un uomo vuoto e vacuo che pu? solamente fare la parte di maschi ed impersonare figure e ruoli singoli, ignorando l?insieme e l?armonia di un... HORVATH E ARPAD SZAKOLCZAI............................... 5 IL PROBLEMA DI PLATONE: LA CRISI DELLA DEMOCRAZIA.......................................................................6 IL PROBLEMA TEORETICO DI PLATONE: L...

  6. Contreras-M., A. & Spooner, D.M. (1999). Revision of Sola~um section Etuberosum (subgenus Potatoe).In: M. Nee, D.E. Symon, R.N. Lester &J.P. Jessop (editors). Solanaceae IV, pp. 227-245.

    E-print Network

    Spooner, David

    1999-01-01

    ).In: M. Nee, D.E. Symon, R.N. Lester &J.P. Jessop (editors). Solanaceae IV, pp. 227-245. Royal and Intrageneric Relationships The genus Solanum is the largest genus in the Solanaceae, with 1,000-1,100 species), described from plants grown in Scotland from seed 227 ~ #12;Solanaceae IV 70" ..;.--,..,~ ... ~/ " ' :..132

  7. Essays on Eclipses, Transits and Occultations as Teaching Tools in the Introductory Astronomy College Course. (Spanish Title: Ensayos sobre Eclipses, Trnsitos y Ocultaciones Como Herramientas de Enseanza en el Curso Universitario Introductorio a la Astronoma.) Ensaios sobre Eclipses, Trnsitos e Ocultaes Como Ferramentas de Ensino em um Curso Universitrio Introdutrio de Astromomia

    NASA Astrophysics Data System (ADS)

    Dcruz, Noella L.

    2014-07-01

    We occasionally include projects in our learner-centered introductory astronomy college course to enable non-science major students explore some astronomical concepts in more detail than otherwise. Such projects also highlight ongoing or upcoming astronomical events. We hope that students will feel more interested in astronomy through projects tied to astronomical events. In Spring 2012, we offered short essays focused on eclipses, transits and occultations to promote the rare transit of Venus that occurred on June 5th, 2012. We asked students to write two short essays from three that were offered. The essays contained descriptive and conceptual parts. They were meant to serve as teaching tools. 62% of 106 essays from 55 students earned A, B or C grades. 21% of 47 feedback survey respondents felt the essays increased their interest in astronomy. 49% of respondents felt that the essays were not educationally beneficial and should not be offered again. The most common written response to our survey indicated that students need more guidance and better preparation in writing successful essays. Since students found the conceptual parts of the essays difficult, in the future we will provide relevant activities prior to essay deadlines to help students create successful essays. Ocasionalmente, incluimos proyectos en nuestro curso de introduccin a la astronoma universitario centrado en el alumno para permitir que los estudiantes de carreras no cientficas exploren algunos conceptos astronmicos en ms detalle que lo habitual. Estos proyectos tambin ponen en relevancia eventos astronmicos en curso o futuros. Esperamos que los estudiantes se sientan ms interesados en la astronoma a travs de proyectos vinculados a eventos astronmicos. En el perodo de primavera de 2012 (EUA), propusimos breves ensayos centrados en los eclipses, trnsitos y ocultaciones para promover el raro trnsito de Venus que se produjo el 5 de junio de 2012. Le pedimos a los estudiantes que escribieran dos ensayos cortos de tres que se proponan. Los ensayos contenan partes descriptivas y conceptuales. Los mismos estaban destinados a servir como herramientas de enseanza. 62% de los 106 ensayos de 55 estudiantes obtuvo grados A, B o C. 21% de los 47 encuestados que respondieron al cuestionario posterior consider que los ensayos aumentaron su inters por la astronoma. 49% de los encuestados consider que los ensayos no eran educacionalmente tiles y que no deben ser propuestos de nuevo. Las respuestas escritas ms comunes a nuestra encuesta indicaran que los estudiantes necesitan ms orientacin y una mejor preparacin en la redaccin de ensayos exitosos. Dado que los estudiantes encontraron las piezas conceptuales de los ensayos difciles, en el futuro vamos a ofrecer actividades pertinentes antes de los plazos de redaccin para ayudar a los estudiantes a crear ensayos de mayor calidad. Ns ocasionalmente inclumos projetos em nosso curso universitrio introdutrio centrado no aluno para permitir aos estudantes que pertencem s carreiras no cientficas explorar alguns conceitos astronmicos em mais detalhes do que o normal. Tais projetos tambm enfatizam eventos astronmicos em curso ou futuros. Esperamos que os alunos se sintam mais interessados na astronomia atravs de projetos ligados a eventos astronmicos. No termo de Primavera de 2012 (EUA), propomos ensaios curtos focados em eclipses, trnsitos e ocultaes para promover o raro trnsito de Vnus que ocorreu no dia 5 de junho de 2012. Pedimos aos alunos que escrevessem dois ensaios curtos dentre trs que foram propostos. Os ensaios continham partes descritivas e conceituais. Eles foram feitos para servir como ferramentas de ensino. 62% de 106 ensaios de 55 alunos ganhou graus A, B ou C. 21% dos 47 entrevistados que responderam ao levantamento posterior sentiu que os ensaios aumentaram seu interesse na astronomia. 49% dos inquiridos consideraram que os ensaios no eram benficos para a educao e que no devem ser propostos novamente. As resp

  8. Clinical Outcomes in Patients with Intermediate Coronary Stenoses: MINIATURE Investigators (Korea MultIceNter TrIal on Long-Term Clinical Outcome According to the Plaque Burden and Treatment Strategy in Lesions with MinimUm Lumen ARea lEss Than 4 mm2 Using Intravascular Ultrasound)

    PubMed Central

    Hong, Young Joon; Choi, Yun Ha; Park, Soo Young; Nam, Chang Wook; Cho, Jang Hyun; Kang, Won Yu; Lee, Sang Rok; Lee, Sung Yun; Kim, Sang Wook; Lim, Sang Yeob; Yun, Kyung Ho; Kim, Jung Sun; Kim, Jin Won; Kang, Woong Chol; Kim, Ki Seok; Choi, Jin Ho; Chung, Joong Wha; Kim, Soo Joong; Ahn, Youngkeun

    2014-01-01

    Background and Objectives We evaluated the two-year clinical outcomes in patients with angiographically intermediate lesions according to the plaque burden and treatment strategy. Subjects and Methods We prospectively enrolled patients with angiographically intermediate lesions (diameter stenosis 30-70%) with an intravascular ultrasound (IVUS) minimum lumen area (MLA) <4 mm2 with 50-70% plaque burden of 16 Korean percutaneous coronary intervention centers. Patients were divided into medical therapy group (n=85) and zotarolimus-eluting stent group (ZES; Resolute) group (n=74). We evaluated the incidences of two-year major adverse cardiovascular events (MACE). Results A two-year clinical follow-up was completed in 143 patients and MACE occurred in 12 patients. There were no significant differences in the incidences of death (1.3% vs. 3.0%, p=0.471), target vessel-related non-fatal myocardial infarction (0.0% vs. 0.0%, p=1.000) and target vessel revascularizations (7.8% vs. 4.5%, p=0.425) between medical and ZES groups. Independent predictors of two-year MACE included acute myocardial infarction {odds ratio (OR)=2.87; 95% confidence interval (CI) 1.43-6.12, p=0.014}, diabetes mellitus (OR=2.46; 95% CI 1.24-5.56, p=0.028) and non-statin therapy (OR=2.32; 95% CI 1.18-5.24, p=0.034). Conclusion Medical therapy shows comparable results with ZES, and myocardial infarction, diabetes mellitus and non-statin therapy were associated with the occurrence of two-year MACE in patients with intermediate lesion with IVUS MLA <4 mm2 with 50-70% of plaque burden. PMID:24876855

  9. Resolving the Youngest Episode of Zircon Rim Growth with High-Spatial Resolution SIMS: U-Pb Ages and Trace Element Analyses from <1 um Thick Metamorphic Zircon Rims from the Zanskar Shear Zone and Tso Morari UHP Complex, NW Himalaya

    NASA Astrophysics Data System (ADS)

    Coble, M. A.; Leech, M. L.

    2014-12-01

    Dating the youngest phase of metamorphic or magmatic zircon growth by in-situ techniques on sectioned zircons can be challenging when rims are only a few microns thick; in the worst case, geologically meaningless measurements result from mixing between different age and/or compositional growth domains. This is especially true for zircons from the Zanskar Shear Zone and Tso Morari UHP Complex, NW Himalaya, which contain Eocene to Miocene rims that grew over Paleozoic and Proterozoic protolith cores during peak and retrograde metamorphism. These metamorphic rims are typically only 0.5 to 3.0 microns thick and require high-spatial resolution to resolve. We used the SHRIMP-RG ion-microprobe to perform new U-Pb depth-profiling analyses on zircon surfaces (non-polished) pressed into indium metal. Zircons from a leucogranite dike from Malung Tokpo along the Zanskar Shear Zone, which have 2000-5000 ppm U rims, were selected for detailed depth-profiling to evaluate the depth-resolution by SIMS for U-Pb and trace element analyses. Due to the high U concentration, we were able to decrease the primary beam intensity (sputter rate) and the count times for U and Pb isotopes, and increase the number of cycles through the run-table (45 peak-hopping scans). As a result, each cycle yielded a 0.04 micron depth-resolved zircon age and trace element composition. The youngest 13 scans yielded a U-Pb age of 21.3 0.5 Ma, representing a 0.6 micron rim with uniform U, Th, and Hf concentrations. At 1.15 microns, the primary beam sputtered into a ~600 Ma core; this older age is complicated by the fact that it reflects mixing between the bottom of the sputter volume and the Miocene ages of the pit margins and rim, because the diameter of the spot tends to increase with time. Trace element analyses on zircon surfaces from the Tso Morari UHP Complex are highly reproducible, showing enriched HREE profiles with negative Eu anomalies - a result that is difficult to reproduce by analyses of sectioned crystals.

  10. Evaluation of the Naturally Acquired Antibody Immune Response to the Pv200L N-terminal Fragment of Plasmodium vivax Merozoite Surface Protein-1 in Four Areas of the Amazon Region of Brazil

    PubMed Central

    Storti-Melo, Luciane M.; Souza-Neiras, Wanessa C.; Cassiano, Gustavo C.; Taveira, Leonardo C.; Cordeiro, Antnio J.; Couto, Vanja S. C. A.; Pvoa, Marinete M.; Cunha, Maristela G.; Echeverry, Diana M.; Rossit, Andra R. B.; Arvalo-Herrera, Myriam; Herrera, Scrates; Machado, Ricardo L. D.

    2011-01-01

    Frequency and levels of IgG antibodies to an N-terminal fragment of the Plasmodium vivax MSP-1 (Pv200L) protein, in individuals naturally exposed to malaria in four endemic areas of Brazil, were evaluated by enzyme-linked immunosorbent assay. Plasma samples of 261 P. vivax-infected individuals from communities of Macap, Novo Repartimento, Porto Velho, and Plcido de Castro in the Amazonian region with different malaria transmission intensities. A high mean number of studied individuals (89.3%) presented with antibodies to the Pv200L that correlated with the number of previous malaria infections; there were significant differences in the frequency of the responders (71.998.7) and in the antibody levels (1:2001:51,200) among the four study areas. Results of this study provide evidence that Pv200L is a naturally immunogenic fragment of the PvMSP-1 and is associated with the degree of exposure to parasites. The fine specificity of antibodies to Pv200L is currently being assessed. PMID:21292879

  11. Adherence and virulence genes of Escherichia coli from children diarrhoea in the Brazilian Amazon

    PubMed Central

    Benevides-Matos, Najla; Pieri, Fabio A.; Penatti, Marilene; Orlandi, Patrcia P.

    2015-01-01

    The bacterial pathogen most commonly associated with endemic forms of childhood diarrhoea is Escherichia coli . Studies of epidemiological characteristics of HEp-2 cell-adherent E. coli in diarrhoeal disease are required, particularly in developing countries. The aim of this study was evaluate the presence and significance of adherent Escherichia coli from diarrhoeal disease in children. The prevalence of LA, AA, and DA adherence patterns were determined in HEp-2 cells, the presence of virulence genes and the presence of the O serogroups in samples obtained from 470 children with acute diarrhoea and 407 controls in Porto Velho, Rondnia, Brazil. E. coli isolates were identified by PCR specific for groups of adherent E. coli . Out of 1,156 isolates obtained, 128 (11.0%) were positive for eae genes corresponding to EPEC, however only 38 (29.6%) of these amplified bfpA gene . EAEC were isolated from 164 (14.1%) samples; of those 41(25%), 32 (19%) and 16 (9.7%) amplified eagg , aggA or aafA genes, respectively and aggA was significantly associated with diarrhoea ( P = 0.00006). DAEC identified by their adhesion pattern and there were few isolates. In conclusion, EAEC was the main cause of diarrhoea in children, especially when the aggA gene was present, followed by EPEC and with a negligible presence of DAEC. PMID:26221098

  12. The extreme 2014 flood in south-western Amazon basin: the role of tropical-subtropical South Atlantic SST gradient

    NASA Astrophysics Data System (ADS)

    Carlo Espinoza, Jhan; Marengo, Jos Antonio; Ronchail, Josyane; Molina Carpio, Jorge; Noriega Flores, Lus; Loup Guyot, Jean

    2014-12-01

    Unprecedented wet conditions are reported in the 2014 summer (December-March) in South-western Amazon, with rainfall about 100% above normal. Discharge in the Madeira River (the main southern Amazon tributary) has been 74% higher than normal (58 000 m3 s-1) at Porto Velho and 380% (25 000 m3 s-1) at Rurrenabaque, at the exit of the Andes in summer, while levels of the Rio Negro at Manaus were 29.47 m in June 2014, corresponding to the fifth highest record during the 113 years record of the Rio Negro. While previous floods in Amazonia have been related to La Nia and/or warmer than normal tropical South Atlantic, the 2014 rainfall and flood anomalies are associated with warm condition in the western Pacific-Indian Ocean and with an exceptionally warm Subtropical South Atlantic. Our results suggest that the tropical and subtropical South Atlantic SST gradient is a main driver for moisture transport from the Atlantic toward south-western Amazon, and this became exceptionally intense during summer of 2014.

  13. HBV/HDV co-infection in the Western Brazilian Amazonia: an intriguing mutation among HDV genotype 3 carriers.

    PubMed

    Kay, A; Melo da Silva, E; Pedreira, H; Negreiros, S; Lobato, C; Braga, W; Muwonge, R; Dny, P; Reis, M; Zoulim, F; Trepo, C; D'Oliveira, A; Salcedo, J M; Schinoni, M I; Parana, R

    2014-12-01

    HDV infection still remains a serious public health problem in Amazonia. There are few data regarding the biomolecular aspects of HBV/HDV co-infection in this region. We studied 92 patients HBsAg(+) /anti-HDV IgG(+) followed at the Hepatitis Referral Centers of Porto Velho (RO), Rio Branco and Cruzeiro do Sul (AC), Brazil, from March 2006 to March 2007 for whom the HDV and/or the HBV genotype could be determined. The HDV genotype could be determined in 90 patients, while the HBV genotypes could be positively determined in 74. HBV subgenotype F2 is the most prevalent (40.2%), followed by the subgenotypes A1 (15.2%) and D3 (8.7%), while 16.4% were other subgenotypes or genotypes, 4.3% were discordant and 15.2% were unamplifiable. Surprisingly, HDV genotype 3 (HDV-3) was found in all of the HBV/HDV-infected patients that could be genotyped for HDV, confirming that HDV-3 can associate with non-F HBV genotypes. However, a HDV-3 mutant was found in 29.3% of patients and was more frequently associated with non-F HBV genotypes (P<0.001) than were nonmutant strains, suggesting that the mutation may facilitate association of HDV-3 with non-F HBV genotypes. PMID:25040045

  14. Distribution of the CCR5delta32 allele (gene variant CCR5) in Rondnia, Western Amazonian region, Brazil.

    PubMed

    de Farias, Josileide Duarte; Santos, Marlene Guimares; de Frana, Andonai Krauze; Delani, Daniel; Tada, Mauro Shugiro; Casseb, Almeida Andrade; Simes, Aguinaldo Luiz; Engracia, Vera

    2012-01-01

    Since around 1723, on the occasion of its initial colonization by Europeans, Rondonia has received successive waves of immigrants. This has been further swelled by individuals from northeastern Brazil, who began entering at the beginning of the twentieth century. The ethnic composition varies across the state according to the various sites of settlement of each wave of immigrants. We analyzed the frequency of the CCR5?32 allele of the CCR5 chemokine receptor, which is considered a Caucasian marker, in five sample sets from the population. Four were collected in Porto Velho, the state capital and the site of several waves of migration. Of these, two, from the Hospital de Base were comprised of HB Mothers and HB Newborns presenting allele frequencies of 3.5% and 3.1%, respectively, a third from the peri-urban neighborhoods of Candelria/Bate-Estaca (1.8%), whereas a fourth, from the Research Center on Tropical Medicine/CEPEM (0.6%), was composed of malaria patients under treament. The fifth sample (3.4%) came from the inland Quilombola village of Pedras Negras. Two homozygous individuals (CCR5?32/CCR5?32) were detected among the HB Mother samples. The frequency of this allele was heterogeneous and higher where the European inflow was more pronounced. The presence of the allele in Pedras Negras revealed European miscegenation in a community largely comprising Quilombolas. PMID:22481870

  15. Distribution of the CCR5delta32 allele (gene variant CCR5) in Rondnia, Western Amazonian region, Brazil

    PubMed Central

    de Farias, Josileide Duarte; Santos, Marlene Guimares; de Frana, Andonai Krauze; Delani, Daniel; Tada, Mauro Shugiro; Casseb, Almeida Andrade; Simes, Aguinaldo Luiz; Engracia, Vera

    2012-01-01

    Since around 1723, on the occasion of its initial colonization by Europeans, Rondonia has received successive waves of immigrants. This has been further swelled by individuals from northeastern Brazil, who began entering at the beginning of the twentieth century. The ethnic composition varies across the state according to the various sites of settlement of each wave of immigrants. We analyzed the frequency of the CCR5?32 allele of the CCR5 chemokine receptor, which is considered a Caucasian marker, in five sample sets from the population. Four were collected in Porto Velho, the state capital and the site of several waves of migration. Of these, two, from the Hospital de Base were comprised of HB Mothers and HB Newborns presenting allele frequencies of 3.5% and 3.1%, respectively, a third from the peri-urban neighborhoods of Candelria/Bate-Estaca (1.8%), whereas a fourth, from the Research Center on Tropical Medicine/CEPEM (0.6%), was composed of malaria patients under treament. The fifth sample (3.4%) came from the inland Quilombola village of Pedras Negras. Two homozygous individuals (CCR5?32/CCR5?32) were detected among the HB Mother samples. The frequency of this allele was heterogeneous and higher where the European inflow was more pronounced. The presence of the allele in Pedras Negras revealed European miscegenation in a community largely comprising Quilombolas. PMID:22481870

  16. Pego do Diabo (Loures, Portugal): Dating the Emergence of Anatomical Modernity in Westernmost Eurasia

    PubMed Central

    Zilho, Joo; Davis, Simon J. M.; Duarte, Cidlia; Soares, Antnio M. M.; Steier, Peter; Wild, Eva

    2010-01-01

    Background Neandertals and the Middle Paleolithic persisted in the Iberian Peninsula south of the Ebro drainage system for several millennia beyond their assimilation/replacement elsewhere in Europe. As only modern humans are associated with the later stages of the Aurignacian, the duration of this persistence pattern can be assessed via the dating of diagnostic occurrences of such stages. Methodology/Principal Findings Using AMS radiocarbon and advanced pretreatment techniques, we dated a set of stratigraphically associated faunal samples from an Aurignacian IIIIV context excavated at the Portuguese cave site of Pego do Diabo. Our results establish a secure terminus ante quem of ca.34,500 calendar years ago for the assimilation/replacement process in westernmost Eurasia. Combined with the chronology of the regional Late Mousterian and with less precise dating evidence for the Aurignacian II, they place the denouement of that process in the 37th millennium before present. Conclusions/Significance These findings have implications for the understanding of the emergence of anatomical modernity in the Old World as a whole, support explanations of the archaic features of the Lagar Velho child's anatomy that invoke evolutionarily significant Neandertal/modern admixture at the time of contact, and counter suggestions that Neandertals could have survived in southwest Iberia until as late as the Last Glacial Maximum. PMID:20111705

  17. Resilience in aging: literature review.

    PubMed

    Fontes, Arlete Portella; Neri, Anita Liberalesso

    2015-05-01

    Psychological resilience is comprised of an adaptive functioning standard before the current and accumulated risks of life. Furthermore, it has a comprehensive range of psychological resources which are essential to overcome adversities, such as personal competences, self-beliefs and interpersonal control which interact with the social networks support. The objectives are to show the concepts of psychological resilience in elderly, relative to dominant theoretical models and the main data about psychological resilience in aging, found in an international and Brazilian review from 2007 to 2013. The descriptors "resilience, psychological resilience and aging", "resilincia e envelhecimento, velhice e velho", were used in PubMed, PsychInfo, SciELO and Pepsic databases. Fifty three international and eleven national articles were selected. The international articles were classified in four categories: psychological and social coping resources, emotional regulation before stressing experiences, successful resilience and aging and correlates, and resilience measures. The Brazilian articles were grouped in three: psychological and social resources, resilience in carers and theory review. Articles on psychological resources and on emotional regulation prevailed as key factors associated with psychological resilience in aging. PMID:26017950

  18. The genetic basis of uveal melanoma.

    PubMed

    Nielsen, M; Dogrusz, M; Bleeker, J C; Kroes, W G; van Asperen, C A; Marinkovic, M; Luyten, G P M; Jager, M J

    2015-06-01

    Uveal melanoma (UM) is the most common intraocular malignancy in adults with an incidence of about 1/100,000 new cases per year in the Western world. Risk factors are having a light skin, blond hair and blue eyes. As some UM patients have a young age at diagnosis or an affected family history for UM or other malignancies, there may be an underlying genetic basis. This review discusses known or suspected risk factors for UM, the cancer risk in UM patients and their family members, and the genes that have been reported to predispose to UM (germline mutations) and tumor development (somatic mutations). PMID:25976137

  19. Chad Chandler Oral History

    E-print Network

    Chandler, Chad; Brown, Diana

    2014-01-01

    to be extremely careful about who you're gonna trust in doing something and in fact, um, you know, in shamanism you see a lot of, um, hallucinogenic drug use, um, because they're trying to achieve a higher plane and they use hallucinogenics as a tool to help... of the '60s, um, and, and very open minded, and continues to impress me on that front because like all the changes within the last two years, she has just totally rolled with and is cool with. Um, her husband now is, um, a recovering alcoholic and drug...

  20. Michael Kraft MEMS Research at ECS with contributions from

    E-print Network

    Kraft, Michael

    : no out of plane warping + spring constant depends only on applied voltages + online trade-off between #12;Michael Kraft MEMS Research at ECS Development Batch: Progress SOI wafer Base: 400 um BOX: 0.8 um

  1. Interplanetare Raumfahrt Vorgeschichte Flyby-Anomalie Zusammenfassung Ein kosmisches Mysterium

    E-print Network

    Aste, Andreas

    durch Venus, ermoglichte Umlaufbahn um Merkur. 3 / 15 Ein kosmisches Mysterium: Die Flyby-Anomalie bei durch Venus, ermoglichte Umlaufbahn um Merkur. Vorteile Kosten-, Zeit- und Treibstoffeinsparungen. H

  2. Subatomic Physics Detector Laboratory J.W. Martin

    E-print Network

    Martin, Jeff

    : Nanosystems Fabrication Lab at UM EE (CFI, C. Shafai) Detector Lab at UM Physics (CFI, M. Gericke) PET;Benefits to Canada My science is discovery science. Basic discoveries are the cornerstone of every

  3. Instituto Nacional de Pesquisas Espaciais Exame para o curso de ps-graduao em Astrofsica

    E-print Network

    for Extraterrestrial Intelligence), afirmava que o grande radiotelescpio de Arecibo, em Porto Rico, "pode detectar um magntico? b) A que acelerao ele submetido? #12;6. Frank Drake, um dos criadores do projeto SETI (Search

  4. Development of an Enterprise-wide Energy Information and Utility Monitoring System in a Major Hotel Chain: The Hyatt Hotels Corporation Experience

    E-print Network

    Burke, B.; McBride, J.; Kimble, K.

    2003-01-01

    consumption data is automatically summarized for the web reports. Hotels without the UMS enter monthly utility data manually on the website. The base UMS at the hotels consists of electric, gas and domestic water consumption and local temperature and relative...

  5. The Journey from Classical to Quantum Thinking: An Analysis of Student Understanding Through the Lens of Atomic Spectra

    E-print Network

    Rao, Sandhya Kolla

    2012-01-01

    piece of paper with table] Um, I think first piece of paper with table] S: um I think first first step I: 08:44 Can you draw an energy level diagram of Hydrogen? [hand piece of paper

  6. Freshwater Community Responses to Mixtures of Agricultural Pesticides: Synergistic Effects of Atrazine and Bifenthrin

    E-print Network

    Hoagland, Kyle D.; Drenner, Ray W.

    1991-01-01

    , chlorophyll, green colonies, Bosmina, rotifers, and particulate phosphorus (>200 um and 20-200 um) on day 7. Bifenthrin had a negative impact on Bosmina, copepod nauplii, rotifers, primary productivity, chlorophyll, green colonies, and all particulate...

  7. Saldo Capitalizavel e Saldo N~ao Capitalizavel: Novos Algoritmos para o Regime de Juros Simples

    E-print Network

    Forger, Frank Michael

    investidor que se compromete a investir um determinado capital C durante um determinado tempo, este expresso (Capitalizac~ao Simples ou Linear): Em cada periodo T, o investidor recebe juros sobre o capital investido

  8. VizieR Online Data Catalog: IAS Stacking Library in IDL (Bethermin+, 2010)

    NASA Astrophysics Data System (ADS)

    Bethermin, M.; Dole, H.; Beelen, A.; Aussel, H.

    2010-04-01

    Number counts reach 35uJy, 3.5mJy and 40mJy at 24um, 70um, and 160um, respectively. We reach deeper flux densities of 0.38mJy at 70, and 3.1 at 160um with a stacking analysis. Products (point spread function, counts, CIB, contributions, software) are publicly available for download at http://www.ias.u-psud.fr/irgalaxies/ (2 data files).

  9. Resumos de Mec^anica Geometrica 10 de Julho de 2003

    E-print Network

    Natário, José

    locais, f vi xi = yi xj vj yi . 6. Um difeomorfismo ´e uma bijec¸c~ao de classe C cuja inversa ´e tamb classe C f : Q R. Se U Q ´e um aberto com p U e xi : U R (i = 1, . . . , n) ´e um sistema de Einstein de subentender uma soma sobre todos os´indices repetidos). Dado um caminho c : R Q de classe C

  10. Precificac~ao via arbitragem Modelo Binomial

    E-print Network

    Zubelli, Jorge Passamani

    , . . . , sN e M possiveis estados. Um investidor toma uma posic~ao inicial e, apos um periodo, um estado e escolhido e a posic~ao do investidor e liquidada. O modelo fica totalmente especificado ativos e um vetor = (1, . . . , N)t RN , onde i > 0 significa que o investidor esta comprado no ativo

  11. The effect of increased convective entrainment on Asian monsoon biases in

    E-print Network

    Wirosoetisno, Djoko

    The effect of increased convective entrainment on Asian monsoon biases in the MetUM General) The effect of increased convective entrainment on Asian monsoon biases in the MetUM General Circulation Model The effect of increased convective entrainment on Asian monsoon biases in the MetUM general circulation model

  12. The effect of increased convective entrainment on Asian monsoon biases in

    E-print Network

    Wirosoetisno, Djoko

    The effect of increased convective entrainment on Asian monsoon biases in the MetUM General entrainment on Asian monsoon biases in the MetUM General Circulation Model. Quarterly Journal of the Royal on Asian monsoon biases in the MetUM General Circulation Model Stephanie J. Bushab, Andrew G. Turnera

  13. REDUCTIVE DEHALOGENATION OF HEXACHLOROETHANE, CARBON TETRACHLORIDE, AND BROMOFORM BY ANAHYDROQUINONE DISULFONATE AND HUMIC ACID

    EPA Science Inventory

    The reductive dehalogenation of hexachloroethane (C2CI6), carbon tetrachloride (CC14), and bromoform (CHBr3) was examined at 50 degrees C in aqueous solutions containing either (1) 500 uM of 2,6-anthrahydroquinone disulfonate (AHQDS), (2) 250 uM Fe2+, or (3) 250 uM HS. The pH ran...

  14. DESIGN AND EVALUATION OF A HIGH FLOW RATE DICHOTOMOUS AEROSOL SAMPLER

    EPA Science Inventory

    Two prototype high flow dichotomous samplers, each simultaneously collecting fine (0.0-2.5 um), coarse (2.5-10.0 um), and total (0.0-10.0 um) particle samples from a single air stream, have been designed and evaluated. eries of tests were conducted to estimate the prototype sampl...

  15. WETLANDS, Vol. 23, No. 4, December 2003, pp. 897910 2003, The Society of Wetland Scientists

    E-print Network

    Afton, Alan D.

    of an infaunal class of invertebrates (Nematoda, 63 to 199 m) was greater in UM marsh ponds than in those of IM marsh ponds than in those of UM marshes. The observed reduction in Nematoda due to SMM also, sediment hardness, carbon, and C:N. Nematoda, Foraminifera, and Copepoda generally were associated with UM

  16. Visit us on the web: www.umich.edu/~umarc

    E-print Network

    Cafarella, Michael J.

    Visit us on the web: www.umich.edu/~umarc The University of Michigan Amateur Radio Club Information is Amateur Radio? Amateur Radio is also known as "Ham Radio". Amateur radio operators use radio to talk. Our Station: W8UM Amateur radio station W8UM is the center of club activity. The W8UM radio "shack

  17. 16 dcembre 2014 Facult de Mdecine RTH Laennec Amphi 3 JOURNE SCIENTIFIQUE DE LA SFR SANTE LYON-EST

    E-print Network

    Maume-Deschamps, Véronique

    INSERM 1 #12;Introduction de la journée 2UMS 3453 CNRS - US 7 INSERM Germain Gillet Guy Mouchiroud #12 INSERM 5 #12;UMS 3453 CNRS - US 7 INSERM 6 Sophie Rome #12;UMS 3453 CNRS - US 7 INSERM 7 Olivier

  18. c Lerche, Uni. Freiburg, 1 Statistik: Zwischen

    E-print Network

    Lerche, Hans Rudolf

    . Datenerhebung #12;c Lerche, Uni. Freiburg, 13 Strittige Sozialstatistiken I. Verbreitung der Prostitution um Prostitution um 1850 in New York a) Schatzung des Bischofs der Methodistenkirche (1866): 11 000 12 000 b Sozialstatistiken I. Verbreitung der Prostitution um 1850 in New York a) Schatzung des Bischofs der

  19. c Lerche, Uni. Freiburg, 1 Statistik: Zwischen

    E-print Network

    Lerche, Hans Rudolf

    Sozialstatistiken I. Verbreitung der Prostitution um 1850 in New York a) Schatzung des Bischofs der Sozialstatistiken I. Verbreitung der Prostitution um 1850 in New York a) Schatzung des Bischofs der Lerche, Uni. Freiburg, 13 Strittige Sozialstatistiken I. Verbreitung der Prostitution um 1850 in New York

  20. Portal Monitor Future Development Work: Hardware Improvements

    SciTech Connect

    Browne, Michael C.

    2012-07-03

    LANL portal monitor was a modification of a previously installed (permanent) unattended monitoring system (UMS). Modifications to the UMS to make the portal were sometimes based on mistaken assumptions about exercise-specific installation and access. Philosophical approach to real-time portal differs in some areas from UMS.

  1. Uma equipa de investigadores portugueses pretende fazer o mapeamento 3D das Ilhas

    E-print Network

    Instituto de Sistemas e Robotica

    da Pennsula Antrtica. Na bagagem, leva um drone por Hugo Sneca m 50 anos, a temperatura mdia da cartografia de Marte, uma campanha de crowdfunding e um drone que promete acelerar a capacidade de mapeamento de um drone EBEE, da fabricante SenseFly, para o mapeamento 3D da pennsula Antr- Os investigadores

  2. Classification of Change: Associated Action and Form Requirements /Approval Form Required

    E-print Network

    Minnesota, University of

    Request (UM1648) Major revision to a policy (e.g., whole new direction) X X X Comp Review or Change Request (UM1648) One or more new requirements - policy X X X Comp Review or Change Request (UM1648) Change on final classification New Exception X Depends on final classification New or Revised Definitions X None

  3. IOV&T OTM MrOYtXt^CLl Nas universidades portuguesas nasceram ou esto a surgir tecnologias capazes de conquistar o interesse de todo o mundo. Das criaes que salvam vidas,

    E-print Network

    Instituto de Sistemas e Robotica

    incontinentes, passando por meios de reutilizar excedentes da agricultura como combustíveis ou testes deADNà uva " à frente de um hambúrguer e de uma cer- veja", não foi um fim em si mas um meio para continuar

  4. Theatre Notes: Segunda Muestra Paraguaya de Teatro

    E-print Network

    1975-04-01

    problema, y su validez naca de la profundizacin en el anlisis de esa modalidad. Pero el grupo dio un paso ms. Con unas leves modificaciones rompi la barrera de la temporalidad que ubicaba a la obra en el pasado (con lo cual la conciencia de culpa... problema, y su validez naca de la profundizacin en el anlisis de esa modalidad. Pero el grupo dio un paso ms. Con unas leves modificaciones rompi la barrera de la temporalidad que ubicaba a la obra en el pasado (con lo cual la conciencia de culpa...

  5. Como Lo Hago Yo: Anomalas del Tubo Neural en Guatemala Mielomeningocele Unidad de Espina Bfida e Hidrocefalia

    PubMed Central

    Manucci, Graciela; von Quednow, Enzo

    2014-01-01

    En Guatemala nacen por a 786 nios con defectos de tubo neural. Operamos 65 a 70 nios con mielomenigocele por ao. Tenemos equipo multidisciplinario. Recomendamos parto por cesrea. Infeccin antes de la ciruga es un problema mayor. Derivacin tarda es un problema. Disecamos la plaqueta con la tcnica clsica. Suturamos la plaqueta para restituir la forma de la mdula. Corpectoma en casos de cifsis. Hidrocefala: Operamos el 80% de los nios. Chiari II: Operamos basados en los sntomas, primero nos aseguramos que la vlvula funciona bien. Mdula anclada: Operamos basados en los sntomas. PMID:24791216

  6. The unusual silicate dust around HV 2310, an evolved star in the LMC

    E-print Network

    Sloan, G C; Bernard-Salas, J; Wood, P R; Houck, J R

    2006-01-01

    The spectrum of HV 2310, an evolved star in the Large Magellanic Cloud, taken with the Infrared Spectrograph (IRS) on the Spitzer Space Telescope reveals the presence of an optically thin shell of silicate dust with unusual spectral structure in the 10 um feature, with an emission peak at 9.7 um, a saddle at 10.4 um, and an extended shoulder to 11.2 um. This structure is similar to spectra from crystalline silicate grains, and of the available optical constants, forsterite provides the best fit. The spectrum also shows structure at 14 um which may arise from an unidentified dust feature.

  7. Spitzer 70 and 160-micron Observations of the Extragalactic First Look Survey

    E-print Network

    D. T. Frayer; D. Fadda; L. Yan; F. R. Marleau; P. I. Choi; G. Helou; B. T. Soifer; P. N. Appleton; L. Armus; R. Beck; H. Dole; C. W. Engelbracht; F. Fang; K. D. Gordon; I. Heinrichsen; D. Henderson; T. Hesselroth; M. Im; D. M. Kelly; M. Lacy; S. Laine; W. B. Latter; W. Mahoney; D. Makovoz; F. J. Masci; J. E. Morrison; M. Moshir; A. Noriega-Crespo; D. L. Padgett; M. Pesenson; D. L. Shupe; G. K. Squires; L. J. Storrie-Lombardi; J. A. Surace; H. I. Teplitz; G. Wilson

    2005-09-21

    We present Spitzer 70um and 160um observations of the Spitzer extragalactic First Look Survey (xFLS). The data reduction techniques and the methods for producing co-added mosaics and source catalogs are discussed. Currently, 26% of the 70um sample and 49% of the 160um-selected sources have redshifts. The majority of sources with redshifts are star-forming galaxies at z<0.5, while about 5% have infrared colors consistent with AGN. The observed infrared colors agree with the spectral energy distribution (SEDs) of local galaxies previously determined from IRAS and ISO data. The average 160um/70um color temperature for the dust is Td~= 30+/-5 K, and the average 70um/24um spectral index is alpha~= 2.4+/-0.4. The observed infrared to radio correlation varies with redshift as expected out to z~1 based on the SEDs of local galaxies. The xFLS number counts at 70um and 160um are consistent within uncertainties with the models of galaxy evolution, but there are indications that the current models may require slight modifications. Deeper 70um observations are needed to constrain the models, and redshifts for the faint sources are required to measure the evolution of the infrared luminosity function.

  8. On the Formation of a Study Group to the Realization of Workshops for Teachers: Astronomy in Basic Education in Umuarama-Pr (Spanish Title: De la Formacin de un Grupo de Estudios a la Realizacin de los Talleres Para los Profesores: la Astronoma en la Educacin Bsica en Umuarama-Pr ) Da Formao de um Grupo de Estudos Realizao de Oficinas Para Professores: a Astronomia na Educao Bsica em Umuarama-Pr

    NASA Astrophysics Data System (ADS)

    Belusso, Diane; Akira Sakai, Otvio

    2013-12-01

    In this article, we aimed to present the activities developed by the Astronomy Study Group (ASG) to contribute to the dissemination and improvement of the astronomy teaching-learning. The results of a research carried out in schools of Umuarama-PR are shown, with the intention of checking the students' knowledge and interest in relation to Astronomy. It is reported the realization of workshops for Science teachers linked to the Education Regional Nucleus. The research and the workshop execution promoted the direct contact of the study group with the community; the results were used to diagnose the state of astronomy teaching-learning, in the basic education in Umuarama-PR. En este artculo se intenta presentar las actividades desarrolladas por el Grupo de Estudios de Astronoma (GEA) y contribuir para la divulgacin y mejora de la enseanza-aprendizaje de la Astronoma. Se presentan los resultados de una investigacin realizada en las escuelas de Umuarama-PR, con la intencin de determinar el grado de conocimiento y el inters de los estudiantes en relacin a la astronoma. Se relata la realizacin de talleres de capacitacin para los profesores de ciencias vinculados al Ncleo Regional del Educacin. La ejecucin de la investigacin y de los talleres promovi el contacto directo del grupo de estudios con la comunidad; los resultados sirvieron de diagnstico de la enseanza aprendizaje de la astronoma en la educacin bsica en Umuarama-PR. Neste artigo, objetiva-se apresentar as atividades desenvolvidas pelo Grupo de Estudos de Astronomia (GEA) e contribuir para a divulgao e melhoria do ensino-aprendizagem de astronomia. So apresentados os resultados de uma pesquisa realizada nas escolas de Umuarama-PR, com o intuito de averiguar o conhecimento e o interesse dos estudantes em relao astronomia. Relata-se a realizao de oficinas de capacitao para professores de cincias vinculados ao Ncleo Regional de Educao. A execuo da pesquisa e das oficinas promoveu o contato direto do grupo de estudos com a comunidade; os resultados serviram de diagnstico do ensino-aprendizagem de astronomia, na educao bsica, em Umuarama-PR.

  9. High School Students' Previous Knowledge about the Stars. (Spanish Title: Conocimientos Previos de Estudiantes de Secundaria Acerca de Las Estrellas.) O Conhecimento Prvio de Alunos do Ensino Mdio sobre as Estrelas

    NASA Astrophysics Data System (ADS)

    Iachel, Gustavo

    2011-12-01

    Based on the readings of articles related to Astronomy Education published in Brazil, it was noticed a lack of research on previous knowledge of students about the physical characteristics of stars, a fact that motivated us to develop this study. Previous knowledge of 125 students (approximated 15 years old) constituted the study sample; data was collected through written questionnaires (Appendix A) for analysis. From the content analysis of these responses it was possible to achieve some inferences as, for example, many students have some difficult to develop an explanatory model on the functioning of a star; there are few who say that the stars have a certain length of existence; some students have said that stars have tips; few recognize that a star is formed by a mass of gas; some previous knowledge come from purely visual aspects; furthermore, some students do not have the habit of observing nature in detail. We see this research as a reference in which science teachers can recognize the importance of previous knowledge for practice teaching and acquire resources for planning their lessons. De la lectura de artculos relacionados con la Educacin en Astronoma publicados en el Brasil, se encuentra una falta de investigaciones acerca del conocimiento previo de los estudiantes sobre las caractersticas fsicas de las estrellas, hecho que nos motiv a desarrollar este estudio. Los datos analizados se obtuvieron al aplicar un cuestionario a 125 estudiantes de secundaria, para posteriormente realizar un anlisis de contenido, tal cuestionario se presenta en el Anexo A. Al realizar el anlisis de contenido de las respuestas obtenidas, fue posible hacer algunas inferencias, como por ejemplo; muchos estudiantes tienen dificultades para desarrollar un modelo explicativo acerca del funcionamiento de una estrella; pocos estudiantes dicen que las estrellas tienen un cierto tiempo de vida; algunos estudiantes imaginan que las estrellas tienen puntas; pocos reconocen que una estrella es formada por una masa de gas; varios conocimientos previos parten de aspectos puramente visuales; por otro lado, los estudiantes no tienen el hbito de observar la naturaleza detalladamente, entre otros problemas. Vemos esta investigacin como una probable fuente de referencia en la que los profesores de ciencias pueden reconocer la importancia del conocimiento previo, y la forma como interfieren con su prctica de enseanza, adems de la adquisicin de recursos para la planificacin de sus clases. Com base em leituras de artigos relacionados ao ensino de Astronomia publicados no Brasil, verificou-se a inexistncia de investigaes sobre o conhecimento prvio de estudantes acerca das caractersticas fsicas das estrelas, fato que nos motivou a desenvolver a pesquisa apresentada. Os conhecimentos prvios de 125 estudantes do primeiro ano do ensino mdio constituram os dados do estudo, os quais foram inferidos atravs da anlise das respostas cedidas em questionrios impressos (Apndice A). A partir da anlise de contedo dessas respostas tornou-se possvel realizar algumas inferncias como, por exemplo: vrios estudantes possuem dificuldade em elaborar um modelo explicativo sobre o funcionamento de uma estrela; so poucos os que dizem que as estrelas possuem certo tempo de existncia; alguns alunos as imaginam com pontas; poucos reconhecem que uma estrela formada por uma massa de gs; vrios conhecimentos prvios partem de aspectos meramente visuais; ainda assim, os estudantes no possuem o hbito de observar a natureza mais detalhadamente, entre outras. Vemos essa pesquisa como uma provvel fonte de consulta na qual os professores de cincias podero, alm de reconhecer a importncia dos conhecimentos prvios para o ensino e como eles interferem em sua prtica, adquirir subsdios para o planejamento de suas aulas.

  10. The restart of meteorological observations in the 19th century in Lisbon: the contribution of Marino Miguel FRANZINI (1779-1861)

    NASA Astrophysics Data System (ADS)

    Alcoforado, Maria-Joao; Nunes, Fatima

    2013-04-01

    After the early meteorological observations of the 1770s to the 1790s in continental Portugal (including a 5 year daily series by J. Velho), there were hardly any until 1815. In December 1815, a meteorological station was set up in Lisbon by Marino Miguel Franzini (1779-1861), an engineer who was also actively involved in Politics (liberal party). Following the tradition of the 18th century enlightenment movement, he took a keen interest in Nature and Sciences, particularly in the "influence" of weather and climate on health and agriculture. Franzini started his observations by request of a physician who sought to understand the reasons why the maximum mortality occurred on the summer months, unlike in northern countries of Europe where maximum mortality occurred in winter (as it happens nowadays in Portugal). The deterministic background of the two scientists is clear. Franzini was a member of the Lisbon Academy of Sciences (founded in 1799) and had contact with foreign Academies and foreign scientists. His instruments were carefully constructed and described, including graduation scales, and stations' location was indicated. Data from two years observations (several meteorological variables) was published in the Academy of Sciences Memoirs. From 1818 until 1826 and from 1835 until 1856 data was divulged in journals and newspapers, such as the "Journal of Medical Sciences", together with data on necrology in some of Lisbon parishes (illustrating the interest of physicians on weather); meteorological data and information about agriculture was also published in the "Lisbon Gazette". Unfortunately, there are hardly any daily data, as Franzini grouped his records according to weather types, as will be explained. Franzini's series will be presented in our talk. The gap between 1826 and 1835 was due to the political activities in which Franzini was involved: the civil war (liberals against absolutist) disruptedscientific research in Portugal. Official meteorological observations began in Lisbon,in December 1854, in a site not far away from Franzini's station. The long series of Lisbon includes the 1835-54 Franzini's series.

  11. The Neoproterozoic Cear Group, Cear Central domain, NE Brazil: Depositional age and provenance of detrital material. New insights from U-Pb and Sm-Nd geochronology

    NASA Astrophysics Data System (ADS)

    Arthaud, M. H.; Fuck, R. A.; Dantas, E. L.; Santos, T. J. S.; Caby, R.; Armstrong, R.

    2015-03-01

    From the Archean to the end of the Neoproterozoic the Borborema Province, northeast Brazil went through a complex polycyclic geologic evolution, ending, between 660 and 570 Ma, with the Brasiliano/Pan-African orogeny that led to West Gondwana amalgamation. Evolution of the metasedimentary covers of the Province, from the beginning of their deposition up to their involvement in the Brasiliano/Pan-African collision, is a key element in understanding formation of Gondwana and in attempts in pre-drift correlation between South America and West Africa. One of these covers, the Cear Group, is exposed in the Cear Central domain. Aiming to unravel the history of the Cear Group, we carried out a geochronologic study of representative samples, combining Sm-Nd isotopic data, conventional U-Pb TIMS dating of zircon and U-Pb SHRIMP age determination of detrital zircon grains. Our results show that sedimentation of the Cear Group started around 750 Ma, following rifting of the Archean/Paleoproterozoic basement, associated with bimodal volcanism. The interlayered basic volcanic rocks, re-crystallized into garnet amphibolites, show a concordant age of 749 5 Ma interpreted as the age of crystallization. About 90% of calculated Sm-Nd TDM model ages of metasedimentary rocks are Paleoproterozoic and more than 50% of the analyzed samples have TDM between 1.95 and 2.4 Ma, with strongly negative ?Nd, consistent with provenance mainly from the Paleoproterozoic basement. Strong contrast between Paleoproterozoic TDM with negative ?Nd and young TDM (Mesoproterozoic) with slightly positive ?Nd is interpreted as a consequence of changes in detritus provenance induced by geomorphologic alterations resulting from tectonic activity during rifting. Ages of detrital zircon grains obtained by SHRIMP U-Pb analyses show three main groups: about 1800 Ma, 1000-1100 Ma and ca. 800 Ma which corresponds to the bimodal magmatism associated, respectively to the Ors-Jaguaribe domain, Cariris Velhos event and Independncia Group.

  12. Examen de Programacion Matematica 4 de febrero de 2011

    E-print Network

    Rocha, Jairo

    . 1. En una construcci´on hay que realizar n tareas una despu´es de la otra y en el orden fijado. Hay´atica 4 de febrero de 2011 Resolver los problemas. Tiempo total 2 h. 1. En una construcci´on hay que

  13. CUBO A Mathematical Journal 02, (137146). July 2008

    E-print Network

    Leito, Antonio

    , Tomography, Medical Imaging, Inverse Problems. Math. Subj. Class.: ?????? 1 Introduction Magnetic Resonance problems related to Magnetic Resonance Imaging (MRI). Our goal is to extend the recent convergence results convergente para un problema inverso en MRI. Key words and phrases: Magnetic Resonance Imaging, MRI

  14. Measuring Student Success

    ERIC Educational Resources Information Center

    Baldwin, Christopher; Bensimon, Estela Mara; Dowd, Alicia C.; Kleiman, Lisa

    2011-01-01

    Student success is at the heart of both institutional effectiveness and the community college mission, yet measuring such success at community colleges is problematic. This article highlights three efforts to grapple with this problem--a multistate work group of system- and state-level policymakers to create an improved set of student success

  15. Usando Performance Relativa para Avaliar Desempenho em Supercomputadores Paralelos

    E-print Network

    Cirne, Walfredo

    nos resultados: a métri­ ca de performance [2] [4] [5]. Acreditamos que boa parte do problema desta inclui a análise de toda a distribuição e não usa sumarização dos dados. Possibilita também uma boa

  16. COMUNICATO STAMPA Drone Vision Cup 2015

    E-print Network

    Costagliola, Gennaro

    COMUNICATO STAMPA Drone Vision Cup 2015 I Proff. Mario Vento e Gennaro Percannella, docenti del), presentano la quinta edizione del contest di visione artificiale: la Drone Vision Cup 2015. Otto squadre di studenti del corso si sfideranno su un problema complesso di visione artificiale, utilizzando un drone

  17. Candidato a Presidente de la Sociedad Internacional de Mecnica de Suelos e Ingeniera Geotcnica ISSMGE

    E-print Network

    Briaud, Jean Louis

    Candidato a Presidente de la Sociedad Internacional de Mecnica de Suelos e Ingeniera Geotcnica sus labores como Presidente de la Sociedad Internacional de Mecnica de Suelos y de Ingeniera la mecnica de suelos, mecnica de rocas, pruebas experimentales de campo y de laboratorio, problemas

  18. Una cinta transportadora de longitud l se mueve con velocidad v respecto al suelo. Por su extremo derecho se introduce un bloque de masa m que se mover en contra de la cinta

    E-print Network

    Chang, Mark J. L.

    Problema 2 Una cinta transportadora de longitud l se mueve con velocidad v respecto al suelo. Por). Determine la velocidad vo (respecto al suelo) con la cual es necesario impulsar el bloque contra el, y que ah se detenga respecto al suelo. En tal punto, con el bloque en reposo respecto al suelo

  19. BDE-TRANS 1 Gestione di transazioni concorrenti

    E-print Network

    De Antonellis, Valeria

    BDE-TRANS 1 Gestione di transazioni concorrenti #12;BDE-TRANS 2 Controllo di concorrenza La, z Problema Anomalie causate dall'esecuzione concorrente, che quindi va governata #12;BDE-TRANS 3 (scrittura w1) #12;BDE-TRANS 4 Lettura sporca t1 t2 bot r1(x) x = x + 1 w1(x) bot r2(x) abort commit

  20. Lexical Connection: Semiterm Grammatical Patterns in Spanish

    ERIC Educational Resources Information Center

    Ferrero, Carmen Lopez

    2012-01-01

    The aim of this article is to describe the grammatical patterns of a set of nouns frequently used in Spanish specialized discourse: the so-called "semiterms". The following nouns were selected for the study: "problema" "problem", "resultado" "result", "motivo" "motive/reason", "razon" "reason", and "consecuencia" "consequence". Apart from