59 research outputs found
Measurement and Monitoring of Pulmonary Function
No full textSeveral computerized systems that allow the collection of data for measurements of pulmonary function have been developed. Although many of these systems eliminate distorted and incomplete breaths from the analysis, there are still many possibilities for error secondary to the inexperience of the user or to patient-related factors. Training and experience with the use of these instruments is essential to obtain reliable results. A clear understanding of all the principles, the assumptions, and limitations affecting the measurements is also essential. The methodology underlying these systems is reviewed. In addition, the commercially available equipment needs to be standardized from an engineering point of view, to assure that the components used have the proper frequency response, that the signals are collected at proper rates, that calibration is simple and accurate, and that the analysis of the data is correct. Systems should be standardized against a lung model
Encapsulating tools into an EDA framework
No full textElectrical Engineering, Mathematics and Computer Scienc
Nekoliko opaski o pojmu pravne države
No full textThe author defines the state of law as a typical product of German political culture which corresponds to, but also differs from, both the experience of the English rule of law and that of the French l’ État-Nation. The author pays particular attention to the issue of the legitimacy of the state of law. He focuses on two different approaches to this issue in the works of Volker Gerhardt and Ernst Wolfgang Böckenförd. Following a critical analysis of their fundamental assumptions the author goes on to divulge the thesis on the necessity of a balance between rights and power in the functioning of modern political systems.Autor određuje pravnu državu kao tipični proizvod njemačke političke kulture koji korespondira, ali se i razlikuje, kako s iskustvom engleskog rule of law, tako i s iskustvom francuske l’ État-Nation. Osobitu pozornost autor posveć uje problemu legitimiteta pravne države. Dva različita načina razmatranja ovoga pitanja on nalazi u djelima Volkera Gerhardta i Ernsta Wolfganga Böckenförda. Nakon kritičkog razmatranja njihovih osnovnih teza, autor izlaže mišljenje o neophodnosti ravnoteže prava i moći u funkcioniranju modernih političkih poredaka
Influence of Chest Wall Distortion and Esophageal Catheter Position on Esophageal Manometry in Preterm Infants
No full textOZONE PHOTOLYSIS: STRONG ISOTOPOLOGUE/ISOTOPOMER SELECTIVITY IN THE STRATOSPHERE
No full textAuthor Institution: CTMM Institut Charles Gerhardt UMR-CNRS 5253; University of Montpellier, France; Univ. Grenoble 1 / CNRS, LIPhy UMR 5588, Grenoble, F-38041, France; Department of Information Technology, University of Debrecen, P.O. Box 12, H-4010 Debrecen, HungaryUsing the visible-UV absorption cross section (Abs. XS) of five ozone isotopologues and an averaged actinic flux, we have calculated the contribution of the atmospheric ozone photolysis to the oxygen isotope and ozone isotopologue/isotopomer enrichment. Five ozone isotopologues/isotopomers are considered among which three are symmetric, (noted 666), (676) and (686), and two are asymmetric, (667) and (668). The photolysis rates of the five ozone isotopologues have been calculated as a function of altitude. The Multi Configuration Time Dependent Hartree (MCTDH) method and the potential energy surfaces calculates by R. Schinke and {\it coworkers} have been used. We have used experimental actinic fluxes, averaged for latitude and season, for altitudes varying by step of 4km up to 80km. Below ~35km, the contribution of the Hartley band to the photolysis rates is restricted to its low energy range, named the Huggins band, which has strong isotopologue/isotopomer selectivity and then induces strong enrichment. Consequently, the isotopologue enrichment's due to ozone photolysis are strongly dependent of the altitude, with pronounced enrichment peaks around 35 km, the altitude corresponding to the maximum relative contribution of the Huggins band. \vspace{1em} We will also present some new simulations for the simulation of laser-induced quantum dynamics of the electronic and nuclear motion in the ozone molecule on the attosecond time scale. \vspace{1em
Thermotoga lettingae sp. nov., a novel thermophilic, methanol-degrading bacterium isolated from a thermophilic anaerobic reactor
No full textA novel, anaerobic, non-spore-forming, mobile, Gram-negative, thermophilic bacterium, strain TMO(T), was isolated from a thermophilic sulfate-reducing bioreactor operated at 65 degrees C with methanol as the sole substrate. The G C content of the DNA of strain TMO(T) was 39.2 molÐThe optimum pH, NaCl concentration, and temperature for growth were 7.0, 1.0°and 65 degrees C, respectively. Strain TMO(T) was able to degrade methanol to CO(2) and H(2) in syntrophic culture with Methanothermobacter thermautotrophicus DeltaH or Thermodesulfovibrio yellowstonii. Thiosulfate, elemental sulfur, Fe(III) and anthraquinone-2,6-disulfonate were able to serve as electron acceptors during methanol degradation. In the presence of thiosulfate or elemental sulfur, methanol was converted to CO(2) and partly to alanine. In pure culture, strain TMO(T) was also able to ferment methanol to acetate, CO(2) and H(2). However, this degradation occurred slower than in syntrophic cultures or in the presence of electron acceptors. Yeast extract was required for growth. Besides growing on methanol, strain TMO(T) grew by fermentation on a variety of carbohydrates including monomeric and oligomeric sugars, starch and xylan. Acetate, alanine, CO(2), H(2), and traces of ethanol, lactate and alpha-aminobutyrate were produced during glucose fermentation. Comparison of 16S rDNA genes revealed that strain TMO(T) is related to Thermotoga subterranea (98€and Thermotoga elfii (98Ž The type strain is TMO(T) (=DSM 14385(T)=ATCC BAA-301(T)). On the basis of the fact that these organisms differ physiologically from strain TMO(T), it is proposed that strain TMO(T) be classified as a new species, within the genus Thermotoga, as Thermotoga lettingae
ANÁLISE DA PRÓPRIA PRÁTICA NO ENSINO DE CIÊNCIAS POR MEIO DE SEQUÊNCIAS INVESTIGATIVAS (SI) ENVOLVENDO NOÇÕES DE FÍSICA COM ALUNOS DOS ANOS INICIAIS DO ENSINO FUNDAMENTAL
No full textThis paper brings a master's research performed by the first author who considered her own teaching and learning process as the study object. The objective was to analyze the development of two investigative sequences (IS) in the construction of students' physical knowledge about the phenomenon of the floating of bodies in the water, reflecting on their teaching practice. The research was carried out with her students from the 4th year of elementary education in the school were the teacher works and the process was recorded in video and noted in the teacher's field diary. Two investigative sequences on which the students were led to actively develop concepts related to the studied phenomena through experimentation and collective reflection, were performed. As a result it was evidenced that the participating students were able to exercise reflective thinking, to create and test their hypothesis on problem solving, to broaden everyday concepts about the phenomenon of fluctuation and to develop autonomy related to their own learning process. It was also possible for the teacher to improve her classes through analyzes, mediations and systematized reflections in the investigative process of the practice itself.
Keywords: Learning. Physical knowledge. Investigative Sequences. Reflexive practiceTrata-se de uma pesquisa da própria prática na qual a professora considerou o processo de ensino- aprendizagem de seus alunos, tomando-o como objeto de estudo. Tem como objetivo analisar o desenvolvimento de duas Sequências Investigativas (SI) na construção de conhecimentos físicos de alunos sobre o fenômeno da flutuação de corpos na água, tecendo reflexões sobre essa prática. A pesquisa foi realizada com alunos do 4º ano do Ensino Fundamental em uma escola pública onde atua a professora-pesquisadora. Na mediação do processo, os alunos foram estimulados a questionar e apreender a realidade, com vistas à construção de seus conhecimentos nas SI. Nestas, foram desenvolvidas noções conceituais relativas ao fenômeno estudado através da experimentação e reflexão coletiva, sendo todo o processo registrado em vídeo e no diário de campo da professora. Como resultado relativo aos alunos evidenciou-se o exercício do pensamento reflexivo, levantamento e teste de hipóteses na resolução de problemas, com ampliação de conceitos cotidianos sobre o fenômeno da flutuação e desenvolvimento da autonomia relativa ao próprio processo de aprendizagem. No tocante às reflexões docentes, cabe destacar as aprendizagens aprimoradas por meio de análises, mediações e reflexões sistematizadas no processo investigativo da própria prática.
Palavras-chave: Aprendizagem. Conhecimentos físicos. Sequências Investigativas. Prática reflexiv
Língua Portuguesa e Matemática: uma prática integradora empregando cantigas de roda
No full textAbstract: This is a professional master's research project in which the author investigated her own practice in an interdisciplinary project, using children's songs as an integrating axis of Portuguese language and mathematics. The article aims to analyze the results of two didactic sequences with children's songs, in a class of the 1st grade of Elementary School, seeking to articulate Portuguese language and mathematics. The study is based on contributions from Smole; Diniz (2009), Borges (2009), Moretti; Souza (2015), among others, and emerged after analyzing three diagnostics applied to the students of the participating class, using the didactic project as a means of intervention. It was found that the project, led by the didactic sequences, expanded the possibilities of learning the linguistic and mathematical skills expected for the 1st grade of Elementary School.
Resumen: Se basa en una investigación de maestría profesional en la que la autora investigó su propia práctica en un proyecto interdisciplinario, utilizando la cantiga de roda como eje integrador de la lengua portuguesa y las matemáticas. El artículo tiene como objetivo analizar los resultados de dos secuencias didácticas con canciones infantiles, en una clase de 1º año de escuela primaria, buscando articular la lengua portuguesa y las matemáticas. El estudio se basa en contribuciones de Smole; Diniz (2009), Borges (2009), Moretti; Souza (2015), entre otros y surgió luego de analizar tres diagnósticos aplicados a los estudiantes de la clase participante, teniendo el proyecto didáctico como medio de intervención. Se encontró que el proyecto, impulsado por secuencias didácticas, amplió las posibilidades de que los estudiantes aprendan las habilidades lingüísticas y matemáticas esperadas para el 1er año de la escuela primaria.
Parte-se de uma pesquisa de mestrado profissional na qual a autora investigou a própria prática em um projeto interdisciplinar, utilizando a cantiga de roda como eixo integrador de língua portuguesa e matemática. O artigo tem como objetivo analisar o resultado de duas sequências didáticas com cantigas de roda, em uma turma do 1º ano do Ensino Fundamental, buscando articular língua portuguesa e matemática. O estudo ancora-se em contribuições de Smole; Diniz (2009), Borges (2009), Moretti; Souza (2015), dentre outros e surgiu após análises de três diagnósticos aplicados com os alunos da turma participante, tendo o projeto didático como meio de intervenção. Constatou-se que o projeto, conduzido pelas sequências didáticas, ampliou as possibilidades de aprendizagens das habilidades linguísticas e matemáticas dos estudantes esperadas para o 1º ano do ensino fundamental.
 
IceCube-Gen2: A Vision for the Future of Neutrino Astronomy in Antarctica
No full text20 pages, 12 figures. Address correspondence to: E. Blaufuss, F. Halzen, C. Kopper (Changed to add one missing author, no other changes from initial version.)20 pages, 12 figures. Address correspondence to: E. Blaufuss, F. Halzen, C. Kopper (Changed to add one missing author, no other changes from initial version.)20 pages, 12 figures. Address correspondence to: E. Blaufuss, F. Halzen, C. Kopper (Changed to add one missing author, no other changes from initial version.)The recent observation by the IceCube neutrino observatory of an astrophysical flux of neutrinos represents the "first light" in the nascent field of neutrino astronomy. The observed diffuse neutrino flux seems to suggest a much larger level of hadronic activity in the non-thermal universe than previously thought and suggests a rich discovery potential for a larger neutrino observatory. This document presents a vision for an substantial expansion of the current IceCube detector, IceCube-Gen2, including the aim of instrumenting a volume of clear glacial ice at the South Pole to deliver substantial increases in the astrophysical neutrino sample for all flavors. A detector of this size would have a rich physics program with the goal to resolve the sources of these astrophysical neutrinos, discover GZK neutrinos, and be a leading observatory in future multi-messenger astronomy programs
Sociology and the nation-state : beyond methodological nationalism
No full textThe equation between society and the nation-state in sociology has been subject to
severe criticisms in recent times. This equation has been given the name of
‘methodological nationalism’ and is underpinned by a reading of the history of
sociology in which the discipline’s key concept, society, and modernity’s major sociopolitical
referent, the nation-state, allegedly converge. At the critical level, my thesis
argues that this is too restrictive a view of the history of the discipline and at the
positive level it reconstructs the conventional version of sociology’s canon in relation
to nation-states. The first part of the thesis surveys the main trends in the current
sociological mainstream, reviews the rise of the critique of methodological nationalism
and establishes a distinction between a referential and a regulative role of the idea of
society in sociology. The body of the thesis constructs a history of the sociology of the
nation-state in its classical (K. Marx, M. Weber and E. Durkheim), modernist (T.
Parsons and historical sociology) and cosmopolitan (U. Beck and M. Castells)
moments. As an essay on the history of sociology, this thesis seeks to uncover how the
conceptual ambivalences of sociology reflect the actual ambivalences in the position
and legacy of nation-states in modernity
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