Absolute Cross Sections
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. Violence against health personnel before and during the COVID-19 pandemic
SUMMARY OBJECTIVE: Violence in the workplace has been an alarming phenomenon around the world. The aim of this study was to analyze the frequency of violence against health personnel in urgent and emergency departments, before and during the COVID-19 pandemic. METHODS: This is an exploratory cross-sectional study including a structured online survey with t
Revista da Associação Médica Brasileira. Publicado em: 2022
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2. A Variable-Length Beam Element Incorporating the Effect of Spinning
Abstract This paper proposes a novel variable-length beam element that takes into account the effect of beam spinning. This is the first such beam element of variable length based on the absolute nodal coordinate formulation. In addition to the position and slope vectors, the angles of rotation around the element axis of cross sections that contain two nodes
Lat. Am. j. solids struct.. Publicado em: 2017-08
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3. Estudo da interação de elétrons com moléculas relevantes à atmosfera
In this work, we present Absolute Elastic Differential (SCDE), Integral Elastic (SCIE) and Momentum-Transfer (SCTM) Cross Sections for electron scattering by n-Butane (C4H10), Benzene (C6H6), Methanol (CH3OH), Ethanol (C2H5OH), 1-propanol (C3H7OH) and 2-propanol (C3H7OH). The measurements were performed for incident energies of electron in the range of 200 e
Publicado em: 2008
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4. FRAGMENTAÇÃO DA MOLÉCULA DE ÁGUA POR IMPACTO DE ÍONS DE HE(+) / WATER MOLECULE FRAGMENTATION BY IMPACT OF HE(+) ions
Neste trabalho são apresentadas, pela primeira vez, seções de choque absolutas para a ionização e a fragmentação da molécula de vapor d´água em colisões com He(+), para as energias de 1,0, 1,5 e 2,0 MeV, totais e parciais nos processos de ionização pura, perda eletrônica (ionização do projétil) e captura eletrônica pelo projétil. Essas se�
Publicado em: 2006
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5. Avaliação de parametros cardiovasculares em pacientes portadores de doença arterial coronariana, submetidos a anestesia local
The purpose of this study was to evaluate the changes of cardiovascular parameters in 15 volunteers with acute CAD (instable angina and previous myocardial infarction) during dental treatment under local anesthesia with epinephrine and felypressine. Ambulatory monitoring (BPAM) and ECG were utilized to evaluate systolic (SBP) and diastolic (OBP) blood pressu
Publicado em: 2005
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6. Estudos de ionização de moléculas poliatômicas de interesse tecnológico.
Complex polyatomic compounds are increasingly being used for modern technological applications, e.g., those related to the semiconductor industry, generation of new materials etc. However, there is a big lack of knowledge of the fundamental properties of such relevant chemical species, and more investigations of them are highly desirable. In the above contex
Publicado em: 2004
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7. A desigualdade regional da renda no Brasil: uma anÃlise da hipÃtese de convergÃncia / The regional inaquality of the income in Brazil: an analysis of the convergence hypothesis
This paper analyses the convergence hypothesis among per capita income of Brazilian states and counties from 1970 to 2000. By means of cross-sections regressions, temporal analysis of dispersion, non-parametric estimates of probability distribution, as well as, Markovâs matrices of transition, the hypothesis of absolute convergence among state and municipal
Publicado em: 2004
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8. Two-center electron-electron correlation within the independent event model
The Independent Event Model (IEVM) is used to analyze collision processes for systems with three and four electrons, in situations where up to three active electrons are involved and dynamical correlation effects play a major role. The model is applied to single electron loss and loss-ionization processes. All the possible ionization mechanisms for both coll
Brazilian Journal of Physics. Publicado em: 2003-06
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9. Calculation of the Reaction Cross Section from a Rate Constant by the Method of Steepest-Descent
The reaction cross section of a bimolecular reaction has been calculated from the corresponding rate constant by the inverse Laplace transform. In carrying out the inverse Laplace transform, the method of steepest-descent has been used. As applications, the reaction cross sections for the rate constant of k(T) = k′ Tne-E0/kT and for the rate constant of th
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10. Functional improvement of damaged adult mouse muscle by implantation of primary myoblasts.
1. Myoblasts from expanded primary cultures were implanted into cryodamaged soleus muscles of adult BALB/c mice. One to four months later isometric tension recordings were performed in vitro, and the male donor cells implanted into female hosts were traced on histological sections using a Y-chromosome-specific probe. The muscles were either mildly or severel
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11. Morphometric study on the uterine horn and thyroid gland in hypothyroid, and thyroxine treated hypothyroid rats.
A wide range of reproductive disorders such as irregular menstruation and frank infertility is found in women with hypothyroidism. Most research done on these patients has focused on steroid and gonadotropin hormone profiles, whilst there has been little work on uterine morphology. Studies on hypothyroid animals have also demonstrated increases in fetal wast
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12. Analysis of the dental morphology of Plio-Pleistocene hominids. II. Mandibular molars--study of cusp areas, fissure pattern and cross sectional shape of the crown.
Accurate measurements of the absolute and relative size of individual cusps, the arrangement of the primary fissure system and the shape of coronal cross sections of the tooth crown have been used to investigate the pattern of variation in Plio-Pleistocene hominid mandibular molar teeth. Teeth were either grouped into one of six taxonomic categories or consi