Mostrando recursos 101 - 120 de 8.894

  1. Nebular Emission Line Ratios in z ≃ 2–3 Star-forming Galaxies with KBSS-MOSFIRE: Exploring the Impact of Ionization, Excitation, and Nitrogen-to-Oxygen Ratio

    Strom, Allison L.; Steidel, Charles C.; Rudie, Gwen C.; Trainor, Ryan F.; Pettini, Max; Reddy, Naveen A.
    We present a detailed study of the rest-optical (3600–7000 Å) nebular spectra of ~380 star-forming galaxies at z ≃ 2–3, obtained with Keck/Multi-object Spectrometer for Infrared Exploration (MOSFIRE) as part of the Keck Baryonic Structure Survey (KBSS). The KBSS-MOSFIRE sample is representative of star-forming galaxies at these redshifts, with stellar masses M_* = M^9 – M^(11.5) M_⊙ and star formation rates SFR = 3–1000 M_⊙ yr^(-1). We focus on robust measurements of many strong diagnostic emission lines for individual galaxies: [O II]λλ3727, 3729, [Ne III]λ3869, Hβ, [O III]λλ 4960, 5008, [N II]λλ 6549, 6585, Hα, and [S II]λλ6718, 6732. Comparisons...

  2. Effect of education on the recording of medicines on admission to hospital.

    Chan, AHY; Garratt, E; Lawrence, B; Turnbull, N; Pratapsingh, P; Black, PN
    BACKGROUND: The inaccurate recording of medicines on admission to hospital is an important cause of medication error. Medication reconciliation has been used to identify and correct these errors. OBJECTIVE: To determine if a multimodal intervention involving medication reconciliation with real-time feedback and education would reduce the number of errors made by medical staff when recording medicines at the time of admission to hospital. DESIGN: Observational study. PARTICIPANTS: Patients admitted to the general medical wards of a teaching hospital were studied prospectively. Patients > or =75 years of age and on > or =5 medications were identified as the 'target group.'...

  3. Deconstructing the divided city identity, power and space in Skopje

    Veron, O
    This thesis makes two main contributions. Based on fieldwork in Skopje, it first adds an original case study to the literature on urban divisions and draws attention to overlooked cities where processes of division may not be immediately obvious in the urban landscape, but which nonetheless exist. Second, it adds to an emerging line of research that seeks to find new ways to think about urban divisions and reflects on the use of static and dynamic concepts to describe urban processes. Instead of regarding divided cities as ontologically-given and focusing on a few cities elevated to the status of paradigmatic...

  4. Chemistry and Kinematics of the Late-Forming Dwarf Irregular Galaxies Leo A, Aquarius, and Sagittarius DIG

    Kirby, Evan N.; Rizzi , Luca; Held, Enrico V.; Cohen, Judith G.; Cole, Andrew A.; Manning, Ellen M.; Skillman, Evan D.; Weisz, Daniel R.
    We present Keck/DEIMOS spectroscopy of individual stars in the relatively isolated Local Group dwarf galaxies Leo A, Aquarius, and the Sagittarius dwarf irregular galaxy. The three galaxies—but especially Leo A and Aquarius—share in common delayed star formation histories (SFHs) relative to many other isolated dwarf galaxies. The stars in all three galaxies are supported by dispersion. We found no evidence of stellar velocity structure, even for Aquarius, which has rotating H i gas. The velocity dispersions indicate that all three galaxies are dark-matter-dominated, with dark-to-baryonic mass ratios ranging from 4.4_(-0.8)^(+1.0) (SagDIG) to 9.6_(-1.8)^(+2.5) (Aquarius). Leo A and SagDIG have lower...

  5. Architecture of the Vibrio cholerae toxin-coregulated pilus machine revealed by electron cryotomography

    Chang, Yi-Wei; Kjær, Andreas; Ortega, Davi R.; Kovacikova, Gabriela; Sutherland, John A.; Rettberg, Lee A.; Taylor, Ronald K.; Jensen, Grant J.
    Type IV pili (T4P) are filamentous appendages found on many Bacteria and Archaea. They are helical fibres of pilin proteins assembled by a multi-component macromolecular machine we call the basal body. Based on pilin features, T4P are classified into type IVa pili (T4aP) and type IVb pili (T4bP). T4aP are more widespread and are involved in cell motility, DNA transfer, host predation and electron transfer. T4bP are less prevalent and are mainly found in enteropathogenic bacteria, where they play key roles in host colonization. Following similar work on T4aP machines, here we use electron cryotomography to reveal the three-dimensional in...

  6. Estudo PAI: estudo da pressão arterial em Idanha-a-Nova/Pt

    Bernardes, Tiago; Coelho, Patrícia; Pereira, Alexandre
    Objetivos: Determinar a prevalência de Hipertensão Arterial na população adulta do concelho de Idanha-a-Nova, assim como verificar as suas taxas de tratamento e controlo e discriminar quais os fatores de risco associados. Métodos: Trata-se de um estudo transversal, analítico, observacional e prospetivo que se realizou nas várias freguesias do concelho, sendo a amostra constituída por 992 indivíduos, dos quais 52,4% são do género feminino e 47,6% do masculino, com idades compreendidas entre os 18 e 95 anos. A recolha de dados decorreu entre junho e julho de 2013, tendo consistido na avaliação dos valores de pressão arterial e realizadas três avaliações com um intervalo regular de 5...

  7. Governação e (re)educação institucional da infância portuguesa errante e infratora nos começos do séc. XX

    Martins, Ernesto
    Tenim la intenció de fer un «cop d’ull sobre aquella infància» en dificultats socials i/o conflicte social, en el camp de la Història (Social) de l’Educació i/o la Història Social de la Infància. Analitzar historiogràficament aquesta «altra infància», que estava en els marges de la normalitat social i del sistema educatiu, a principis del segle xx a Portugal. Hi havia qüestions de regeneració i (re)educació d’aquesta infància i les modalitats de govern en els internats (reformatoris) que obeïen a formes de racionalitat i a contextos temporals propis, inserits en un moviment de reforma social, a partir de finals del segle xix. Tenint en compte els dispositius legals...

  8. Fatores Explicativos da Apreciação de Filmes Cómicos em Pessoas com Doença Renal Crónica

    Sousa, LM; Marques-Vieira, C; Severino, S; Pozo Rosado, JL; José, HM
    Objetivos: Identificar os factores que influenciam a apreciação de filmes humorosos em pessoas com doença renal crónica e conhecer os filmes humorosos mais apreciados por estas pessoas durante a sessão de hemodiálise. Métodos: Pesquisa descritiva e correlacional de delineamento transversal. Amostra randomizada composta por pessoas com doença renal crónica submetidas a hemodiálise numa clínica. A colheita de dados foi por meio de entrevista individual e questionário autopreenchido, utilizando-se os instrumentos: caracterização dos sujeitos e o formulário do sentido de humor. Os dados foram analisados recorrendo a procedimentos da estatística descritiva como média, desvio padrão e frequência simples e relativa e...

  9. Fatores Explicativos da Apreciação de Filmes Cómicos em Pessoas com Doença Renal Crónica

    Sousa, LM; Marques-Vieira, C; Severino, S; Pozo Rosado, JL; José, HM
    Objetivos: Identificar os factores que influenciam a apreciação de filmes humorosos em pessoas com doença renal crónica e conhecer os filmes humorosos mais apreciados por estas pessoas durante a sessão de hemodiálise. Métodos: Pesquisa descritiva e correlacional de delineamento transversal. Amostra randomizada composta por pessoas com doença renal crónica submetidas a hemodiálise numa clínica. A colheita de dados foi por meio de entrevista individual e questionário autopreenchido, utilizando-se os instrumentos: caracterização dos sujeitos e o formulário do sentido de humor. Os dados foram analisados recorrendo a procedimentos da estatística descritiva como média, desvio padrão e frequência simples e relativa e...

  10. Impacto dos fatores de risco numa população do interior e sua relação com a hipertensão arterial

    Bernardes, T. J. R.; Coelho, Patrícia; Pereira, Alexandre
    Introdução: A Hipertensão Arterial (HTA) define-se como uma doença multifactorial, sendo considerada um importante problema de saúde pública mundial. Diversos estudos relativos à prevalência de HTA têm vindo a ser realizados, pelo que cada vez mais se chama a atenção para os resultados alarmantes neles obtidos. Objetivo: Determinar a prevalência de HTA na população adulta num concelho do interior, e discriminar quais os fatores de risco associados na amostra estudada. Materiais e métodos: Trata-se de um estudo transversal, analítico, observacional e prospetivo que se realizou nas várias freguesias do concelho estudado. A recolha de dados decorreu entre junho e julho de 2013, tendo...

  11. Zeki Müren, a prince from outer space : reading Turkey's gender-bending pop legend as a transmedia star

    Boyacioğlu, Beyza
    Zeki Müren is Turkey's beloved queer pop star whose career spans a period between his first radio emission in 1951 and his death during a live television program in 1996. He is a pioneer of 'Turkish Art Music', a trailblazer in utilizing novel mass communication tools, a proud nationalist who donated half of his estate to Military Veterans Organization, and an LGBTQ solidarity symbol whose gender-bending image has been an inspiration to queer individuals in Turkey. Müren's artistic production and his star image contain multiplicity of meanings that have rendered him accessible to publics from various backgrounds, subcultures, and generations....

  12. Mapping technology space by normalizing patent networks

    Yan, Bowen; Luo, Jianxi; Alstott, Jeffrey D; Triulzi, Giorgio
    Technology is a complex system with technologies relating to each other in a space that can be mapped as a network. The technology network’s structure can reveal properties of technologies and of human behavior, if it can be mapped accurately. Technology networks have been made from patent data using several measures of proximity. These measures, however, are influenced by factors of the patenting system that do not reflect technologies or their proximity. We introduce a method to precisely normalize out multiple impinging factors in patent data and extract the true signal of technological proximity by comparing the empirical proximity measures...

  13. O texto livre em crianças do 2º ano de escolaridade: A enunciação e a predicação

    Amante, Lúcia da Graça
    Neste trabalho pretendeu-se estudar as características dos textos livres produzidos ao longo de um ano lectivo por um grupo de crianças do 2º Ano de Escolaridade. Esta análise centrou-se em dois aspectos: A Enunciação (estudo das relações que se estabelecem entre o enunciador e o enunciado por ele produzido) e a Predicação (estudo do tipo de acções desenvolvidas no enunciado pelo sujeito principal). Na Enunciação os resultados obtidos mostraram que as crianças desta idade (7/8 anos) e deste nível escolar escrevem essencialmente textos do tipo DISCURSO embora ao longo do ano lectivo se verifique uma tendência acentuada para o aumento da produção de textos tipo HISTÓRIA. Viu-se ainda que as crianças denotam preferência por...

  14. Hipertensão arterial: principal fator de risco em doentes com fibrilhação auricular

    Coelho, Patrícia; Sánchez Quintana, Damián; Gañán Presmanes, Yolanda
    Introdução: A Fibrilhação Auricular(FA) é uma arritmia que cada vez mais está presente na nossa sociedade. Além da repercussão hemodinâmica, a importância desta arritmia está intimamente relacionada com a presença do acidente vascular cerebral. O objetivo deste estudo foi relacionar a Fibrilhação Auricular com os fatores de risco. Métodos: Este estudo realizou-se consultando todas as histórias clínicas que foram codificadas com FA entre 2009 e 2011. Incluíram-se todos os pacientes que estavam de acordo com os critérios de inclusão: ter FA documentada (por eletrocardiograma ou Holter). De todos os indivíduos selecionados obtivemos 315 pacientes, 47,9% do género masculino e 52,1% do feminino com idades entre 24 a 102...

  15. A conservation trade-off? Interspecific differences in seahorse responses to experimental changes in fishing effort

    Curtis, Janelle M. R.; Ribeiro, Joaquim; Erzini, Karim; Vincent, Amanda C. J.
    1. A 2-year experimental seining programme and underwater visual censuses were undertaken to quantify the direct effects of active demersal fishing on the population structure and relative abundance of two sympatric seahorse species of conservation concern: the European long-snouted seahorse, Hippocampus guttulatus Cuvier 1829 and the short-snouted seahorse, Hippocampus hippocampus L. The influence of habitat preference on population-level responses to changes in habitat structure following a reduction in fishing effort was also investigated. 2. It was predicted that the benthic habitat would be more structurally complex after fishing ceased and that seahorse densities would increase in response to reduced fishing...

  16. Combining multispecies home range and distribution models aids assessment of MPA effectiveness

    Abecasis, D.; Afonso, P.; Erzini, Karim
    Marine protected areas (MPAs) are today's most important tools for the spatial management and conservation of marine species. Yet, the true protection that they provide to individual fish is unknown, leading to uncertainty associated with MPA effectiveness. In this study, conducted in a recently established coastal MPA in Portugal, we combined the results of individual home range estimation and population distribution models for 3 species of commercial importance and contrasting life histories to infer (1) the size of suitable areas where they would be fully protected and (2) the vulnerability to fishing mortality of each species. Results show that the...

  17. Os investimentos públicos em São Miguel no último quartel do século XIX

    Reis, Vitor Emanuel Tavares
    Dissertação de Mestrado, História Insular e Atlântica (Séculos XV-XX), 17 de Novembro de 2016, Universidade dos Açores.

  18. Fact and sanctity : authenticating laudianism in the English Monasticon anglicanum's architectural prints (1655)

    Murphy, Caroline (Caroline Elizabeth)
    This thesis takes as its focus the set of illustrated plates of monastic churches and cathedrals that interleave the first volume of the Monasticon Anglicanun, a monumental Latin antiquarian tome on England's dissolved monastic establishments published in 1655. It was arranged by the antiquaries William Dugdale and Roger Dodsworth from compiled transcriptions of monastic foundation charters, and was illustrated in the early 1650s by the engraver Daniel King with over fifty full-page plates of dissolved monastic churches and cathedrals. The etcher Wenceslaus Hollar also contributed a few etchings to the project. The ambitions of this antiquarian endeavor were articulated in...

  19. To discover Hashima Island

    Lee, Dohyun, S.B. Massachusetts Institute of Technology
    From 1916 to 1945, Japanese governments recruited Korean laborers from South Korea for coal mining. The laborers ranged from thirteen to nineteen years old-most of them were still middle school or high school students. Hoping to earn money as the government promised, but unaware of the hostility and danger to which they would be exposed, 600 young Korean laborers were sent to an island called Hashima Island. Hashima Island has been desolate since 1974 after its coal resources were depleted. Although the island is no longer in use, the current condition of the architecture of Hashima Island speaks the truth...

  20. An improved procedure for generating standardised load-time histories for marine structures

    Li, S; Cui, W; Paik, JK
    The load sequence effect has been proved from laboratory tests to be an influencing factor that cannot be neglected in the fatigue analysis of marine structures. To take account of this significant factor, fatigue life prediction should be based on fatigue crack propagation theory rather than the currently used cumulative fatigue damage theory. Accordingly, fatigue loading needs to be provided as the load-time history in the time domain rather than the load spectrum in the frequency domain. A general procedure for generating the standardised load-time history for marine structures based on a short-term load measurement has been proposed by the...

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