Líbano: um dos maiores receptores de refugiados do mundo

II Semana Acadêmica de Relações Internacionais foi realizada de 05 a 09 denovembro de 2017, na Universidade Federal da Integração Latino-Americana (UNILA)O artigo tem por objetivo analisar quais fatores fizeram do Líbano, um dos maiores receptores de refugiados do mundo, nos últimos dois séculos. Para isso, analisou-se três grandes ondas de refúgio, a armênica, a palestina e a síria. Defende-se que o Líbano é um importante destino de refúgio por alguns fatores determinantes, sua localização estratégica, estar situado em uma região "caótica" que convive com muitos conflitos armados, sua grande diversidade religiosa, a falta de políticas de imigração rigorosas para adentrar o país e seu sistema político interno que ampara a participação de grupos minoritários na vida política do paí

Six degrees of freedom vibration isolation using electromagnetic suspension

Experimental data are presented for modeling an electromagnet. Control laws are considered with and without flux feedback and with position and orientation information of the suspended body. Base motion and sensor noise are the principal disturbances. Proper selection of the geometrical operating point minimizes the passive coupling above the bandwidth of the control and filtering can attenuate the high frequency content of sensor noise. Six electromagnets are arranged in a configuration which optimizes the load support and provides control over all six degrees of freedom of the suspended body. The design is based on experimental data generated with a specially designed test facility. Application for suspension of a gravity wave antenna is discussed

Implementation and Evaluation of Computer-Assisted Science Vocabulary Modules With Students With an Intellectual Disability and Autism: An Action Research Study

Students with disabilities are struggling to meet expectations in science at the national and local level. Many studies have linked difficulties with science content to difficult and technical vocabulary, and this has been evident at the local level, too. To try to improve science instruction for students with disabilities, the purpose of this study was to evaluate the implementation of computer-assisted science vocabulary modules with students with an intellectual disability and autism in an adapted environmental science class. This study aimed to answer how the implementation of computer-assisted vocabulary modules, which adhere to evidence-based practices of special education vocabulary instruction, affected the acquisition and application of science vocabulary terms with students with an intellectual disability and autism in an adapted environmental science class, as well as how the students were engaged in the computer-assisted instruction activities. This study implemented an action research design. The participants in this study included three students (n = 3) who were diagnosed with a moderate intellectual disability, autism, and a speech/language impairment who attended a weekly adapted environmental science class at their self-contained school. The students participated in computer-assisted vocabulary modules which included computer-assisted instruction features, vocabulary strategies including keyword mnemonics and graphic organizers, and the special education evidence-based practice of explicit instruction. The modules were developed surrounding the topic of photosynthesis, using Gagne’s nine events of instruction, psycholinguistic/schema theory, and dual coding theory, as well as South Carolina-Alt performance level descriptors. The effectiveness of the computer-assisted vocabulary modules was measured through data collection which included a pre- and posttest, formative assessments in each module, the Classroom Measurement of Achievement Engagement, and a researcher’s journal. The data collected were analyzed using a convergent parallel mixed methods design. The findings of this study suggested the use of computer-assisted instruction and evidence-based explicit vocabulary instruction could improve science vocabulary acquisition and active engagement in instruction for students with an intellectual disability and autism

Containment Basins And Bird Exclusion-A Historical Perspective

Most facility engineers with responsibility for hazing birds on containment basins use agricultural crop protection techniques. This approach is appropriate for basins with non-hazardous solutions. Basins containing toxic solutions require an entirely different approach. Detoxification, or exclusion with floating membranes, netting or Bird Balls™ are the best options

Characterization of High-Speed Flyer Evolution by Multi-Probe Photon Doppler Velocimetry

In this paper, the shape evolution of an aluminium flyer is characterized by a 16-probe Photonic Doppler Velocimeter while being impulsed by a Vaporizing Foil Actuator. For high-speed manufacturing, understanding the shape evolution of a flyer can advance the understanding of the characteristics of the applied pressure as well as the dynamics of the material; however, shock-driven process conditions often make it difficult to perform an in-situ study due to its rapidity and high non-equilibrium nature. Characterization of flyer evolution is also essential for comprehending the mechanism of impact welding, as it can enable measuring the process parameters at the time of collision, thus allowing for the prediction of the weld interface structure. An example is provided with an Al-Mg weld interface, showing the process-microstructure relationship of an impact welding process

Developing a hypothetical multi-dimensional learning progression for the nature of matter

We describe efforts toward the development of a hypothetical learning progression (HLP) for the growth of grade 7–14 students' models of the structure, behavior and properties of matter, as it relates to nanoscale science and engineering (NSE). This multi-dimensional HLP, based on empirical research and standards documents, describes how students need to incorporate and connect ideas within and across their models of atomic structure, the electrical forces that govern interactions at the nano-, molecular, and atomic scales, and information in the Periodic Table to explain a broad range of phenomena. We developed a progression from empirical data that characterizes how students currently develop their knowledge as part of the development and refinement of the HLP. We find that most students are currently at low levels in the progression, and do not perceive the connections across strands in the progression that are important for conceptual understanding. We suggest potential instructional strategies that may help students build organized and integrated knowledge structures to consolidate their understanding, ready them for new ideas in science, and help them construct understanding of emerging disciplines such as NSE, as well as traditional science disciplines. © 2009 Wiley Periodicals, Inc. J Res Sci Teach 47:687–715, 2010Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/77521/1/20324_ftp.pd

Hypercomplex quantum mechanics

The fundamental axioms of the quantum theory do not explicitly identify the algebraic structure of the linear space for which orthogonal subspaces correspond to the propositions (equivalence classes of physical questions). The projective geometry of the weakly modular orthocomplemented lattice of propositions may be imbedded in a complex Hilbert space; this is the structure which has traditionally been used. This paper reviews some work which has been devoted to generalizing the target space of this imbedding to Hilbert modules of a more general type. In particular, detailed discussion is given of the simplest generalization of the complex Hilbert space, that of the quaternion Hilbert module.Comment: Plain Tex, 11 page

Nonenzymatic lipid mediators, neuroprostanes, exert the antiarrhythmic properties of docosahexaenoic acid

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Enantioselective synthesis of trans-2,3-Dihydro-1H-indoles through C-H Insertion of a-Diazocarbonyl compounds

A stereoselective synthesis of 2,3-dihydro-1H-indoles with a RhII-catalyzed C–H insertion is reported. The α-diazo carbonyl intermediates can be obtained by a diazo-transfer reaction of 2-aminophenylacetic acids. Optimization and kinetic studies were performed, which resulted to increased yields of the diazo transfer after mechanistic evaluation of the side-product formation. trans-2,3-Dihydro-1H-indoles were obtained in high diasteromeric excesses (up to 94 % de) and enantiomeric excesses (up to 94 % ee)