Diversity in the College Composition Classroom: A case study on second-language writers and early college entrants

Student populations in post-secondary institutions in the United States have increasingly become more diverse in the past several decades. This diversity includes students from distinct ethnic groups, of various linguistic backgrounds, and from a wide age range. English as a second language students have largely populated these classes, creating an exigency for modifications in the political, social, administrative, and pedagogical practices of these universities and colleges. Some higher education institutions have also diversified their student body by creating early acceptance programs for gifted students. Like second-language students, they might too present peculiarities that require changes in the way the university functions. Early college entrance programs also admit international students, which might result in a classroom space with precocious gifted learners who also have diverse cultural and linguistic backgrounds. With this in mind, and in the attempt to bridge the scholarship on second-language writers in composition classes and on early college entrance programs, this case study investigates a first-year composition (FYC) classroom to identify the pedagogical practices adopted by the instructor to deal with this complex student demographics. The data collection was based on ethnographic methods, such as class observations, analysis of course material, and a semi-structured interview. The data was gathered and analyzed using Constructivist Grounded Theory (Charmaz, 2001). The analysis was also framed utilizing the concepts of negotiation and accommodation from ii Intercultural Rhetoric Theory (Connor, 2011). The results showed that the complexity of the classroom requires subtle adaptations to the teacher’s practices and beliefs, which is largely discussed by Intercultural Rhetoric Theory researchers. This study hopes to modestly contribute to the fields of second-language writing and early-college entrants as it attempts to bring these two contexts together within the discussion on writing pedagogies and composition studies

Magnitude e data do nível mínimo anual do Rio Paraguai em Ladário com base no MODELAD.

O nível do Rio Paraguai constitui excelente indicador das condições hidrológicas do Pantanal. O presente Boletim de Pesquisa tem por objetivo apresentar a aplicação dos conceitos do MODELAD (Modelo para previsão do nível do Rio Paraguai em Ladário, MS) para também projetar a data e a magnitude do nível mínimo anual. Os melhores resultados do MODELAD aplicado ao nível mínimo apresentam erro médio da magnitude de ± 22 cm para previsões realizadas em outubro e erro médio da data de ocorrência de ±12 dias para previsões realizadas em agosto.bitstream/CPAP-2009-09/57061/1/BP85.pd

A new method for quantification of hepatobiliary scintigraphy using 99mTc-mebrofenin. A comparative study

A method based upon the application of mathematical techniques of deconvolution on the classical compartmental model for the quantitative study of liver function from hepatobiliary scintigraphy using 99mTc-mebrofenin data is proposed. The theory in which the method is based upon is presented and a comparison with a published methodology of obtaining the hepatic extraction after scintigraphic sudies has been performed using the results on 36 rats studies obtained with the two methods. A highly significant correlation between the two techniques was verified. The characteristics of the two methodologies, the proposed one based upon a theoretical approach and the other one on an empirical approximation are discussed. Comments are made on the interest and limitations of the presented technique that may be an useful tool for the evaluation of hepatic insufficiency

On Useful Conformal Tranformations In General Relativity

Local conformal transformations are known as a useful tool in various applications of the gravitational theory, especially in cosmology. We describe some new aspects of these transformations, in particular using them for derivation of Einstein equations for the cosmological and Schwarzschild metrics. Furthermore, the conformal transformation is applied for the dimensional reduction of the Gauss-Bonnet topological invariant in $d=4$ to the spaces of lower dimensions.Comment: 17 pages, LaTeX. The paper is intended mainly for pedagogical purposes and represents a collection of exercises concerning local conformal transformations and dimensional reduction. To be published in "Gravitation and Cosmology

A semiquantitative approach to the impurity-band-related transport properties of GaMnAs nanolayers

We investigate the spin-polarized transport of GaMnAs nanolayers in which a ferromagnetic order exists below a certain transition temperature. Our calculation for the self-averaged resistivity takes into account the existence of an impurity band determining the extended ("metallic" transport) or localized (hopping by thermal excitation) nature of the states at and near the Fermi level. Magnetic order and resistivity are inter-related due to the influence of the spin polarization of the impurity band and the effect of the Zeeman splitting on the mobility edge. We obtain, for a given range of Mn concentration and carrier density, a "metallic" behavior in which the transport by extended carriers dominates at low temperature, and is dominated by the thermally excited localized carriers near and above the transition temperature. This gives rise to a conspicuous hump of the resistivity which has been experimentally observed and brings light onto the relationship between transport and magnetic properties of this material

Estrutura de uma área de caatinga invadida por algarobeira na Fazenda Gavião, Petrolina-PE.

Objetivando a análise dessas formações vegetais no município de Petrolina-PE, comparou-se duas vegetações de caatinga, sendo uma invadida por algarobeira (Prosopis juliflora (S w) DC)

Investigating annual and monthly trends in precipitation structure: an overview across Portugal

This work investigates recent changes in precipitation patterns manifested in long annual and monthly precipitation time series recorded in Portugal. The dataset comprises records from 14 meteorological stations scattered over mainland Portugal and the Portuguese North Atlantic Islands of Madeira and Azores; some of the time series date back to the 19th century. The data were tested for trends using the Mann-Kendall non-parametric test and Sen's non-parametric method, searching both for full monotonic trends over the record period and for partial trends. Results provide no evidence for rejecting the null hypothesis of no trend in annual precipitation, when a monotonic linear model was used. Nevertheless, the analyses of 50 years' moving averages showed an increase over time, in the recent past, for many of the series in mainland Portugal and the Islands. For the longest time series this behaviour was preceded by a decrease over time. The analyses of partial trends in the time series suggested a sequence of alternately decreasing and increasing trends in annual and monthly precipitation, which are sometimes statistically significant. The trend changing points were identified

Derivative F-Terms from Heterotic M-Theory Five-brane Instantons

We study non-perturbative effects due to a heterotic M-theory five-brane wrapped on Calabi-Yau threefold. We show that such instantons contribute to derivative F-terms described recently by Beasley and Witten rather than to the superpotential.Comment: 10 pages, Latex, minor correction

Influência da posição do tronco nas características do carvão de Eucalyptus benthamii.

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