General program /

Description based on: 60th (1979).

Program audit : Office of the Inspector General, Department of Human Services.

Description based on: 1998 ; title from cover.

Application of step-scan FTIR to the research of quantum cascade lasers

The principle of step-scan Fourier transform infrared （FTIR） spectroscopy is introduced. Double modulation step-scan FTIR technique is used to obtain the quantum cascade laser＇s stacked emission spectra in the time domain. Optical property and thermal accumulation of devices due to large drive current are analyzed.

Electron collision cross sections and rate coefficients for the Na-like Cu ion

Collision cross sections are calculated using the R-matrix method for excitations between the three lowest LS states for Na-like Cu ion. The complex resonance structures are investigated. The collision rate coefficients have been calculated assuming a Maxwellian distribution of electron-impact energies. The results of the collision cross sections are in good agreement with those of the other theory.

Energy levels, radiative rates and electron impact excitation rates for transitions in Fe XIV

Energies and lifetimes are reported for the lowest 136 levels of Fe XIV, belonging to the (1s(2)2s(2)2p(6)) 3s(2)3p, 3s(3)p(2), 3s(2)3d, 3p(3), 3s(3)p(3)d, 3p(2)3d, 3s(3)d(2), 3p(3)d(2) and 3s(2)4l configurations. Additionally, radiative rates, oscillator strengths and line strengths are calculated for all electric dipole (E1), magnetic dipole (M1), electric quadrupole (E2) and magnetic quadrupole (M2) transitions. Theoretical lifetimes determined from these radiative rates for most levels show satisfactory agreement with earlier calculations, a swell as with measurements. Electron impact excitation collision strengths are also calculated with the Dirac atomic R-matrix code (DARC) over a wide energy range up to 260 Ryd. Furthermore, resonances have been resolved in a fine energy mesh to determine effective collision strengths, obtained after integrating the collision strengths over a Maxwellian distribution of electron velocities. Results are listed for all 9180 transitions among the 136 levels over a wide range of electron temperatures, up to 10(7.1) K. Comparisons are made with available results in the literature, and the accuracy of the present data is assessed.

Comparison of Parallelised R-matrix codes for electron impact excitation of Cr II

A comparison of collision strengths and effective collision strengths has been undertaken for the Cr II ion based on the model of Wasson et al [2010 A & A. 524 A35]. Calculations have been completed using the Breit-Pauli, RMATRX II and DARC suites of codes.

Input quality matters: some comments on input type and age-effects in adult SLA.

In accord with the general program of researching factors relating to ultimate attainment and maturational constraints in adult language acquisition, this commentary highlights the importance of input differences in amount, type, and setting between naturalistic and classroom learners of an L2. It is suggested that these variables are often confounded with age factors. Herein, we wish to call attention to the possible deterministic role that the differences in the grammatical quality of classroom input have on development and on competence outcomes. Framing what we see as greater formal complexity of the learning task for classroom learners, we suggest that one might benefit from focusing less on difference and more on how classroom L2 learners, at least some of them, come to acquire all that they do despite crucial qualitative differences in their input.

On the typological economy of syntactic transfer: word order and relative clause high/low attachment preference in L3 Brazilian Portuguese

One central question in the formal linguistic study of adult multilingual morphosyntax (i.e., L3/Ln acquisition) involves determining the role(s) the L1 and/or the L2 play(s) at the L3 initial state (e.g., Bardel & Falk, Second Language Research 23: 459–484, 2007; Falk & Bardel, Second Language Research: forthcoming; Flynn et al., The International Journal of Multilingualism 8: 3–16, 2004; Rothman, Second Language Research: forthcoming; Rothman & Cabrelli, On the initial state of L3 (Ln) acquisition: Selective or absolute transfer?: 2007; Rothman & Cabrelli Amaro, Second Language Research 26: 219–289, 2010). The present article adds to this general program, testing Rothman's (Second Language Research: forthcoming) model for L3 initial state transfer, which when relevant in light of specific language pairings, maintains that typological proximity between the languages is the most deterministic variable determining the selection of syntactic transfer. Herein, I present empirical evidence from the later part of the beginning stages of L3 Brazilian Portuguese (BP) by native speakers of English and Spanish, who have attained an advanced level of proficiency in either English or Spanish as an L2. Examining the related domains of syntactic word order and relative clause attachment preference in L3 BP, the data clearly indicate that Spanish is transferred for both experimental groups irrespective of whether it was the L1 or L2. These results are expected by Rothman's (Second Language Research: forthcoming) model, but not necessarily predicted by other current hypotheses of multilingual syntactic transfer; the implications of this are discussed.

TV BRASIL: UMA EMISSORA PÚBLICA EM CONSTRUÇÃO Ações e controvérsias 2007-2010 Universidade Metodista

A pesquisa verifica em que medida a TV Brasil, criada no país em 2007 pelo presidente Luiz Inácio Lula da Silva, se constitui, de fato, em um modelo democrático de TV pública, com o objetivo de desenvolver a consciência crítica do cidadão, mediante programação educativa, artística, cultural, informativa, cientifica e promotora da cidadania , como determina seu Estatuto. O trabalho descreve e analisa o processo de construção da emissora no período de 2007-2010. Examina as relações de poder e o debate entre os diferentes setores do governo e da sociedade civil organizada, envolvidos no processo de democratização da radiodifusão brasileira, e na criação e implementação do modelo de televisão pública no Brasil. Discute os processos de gestão, de produção e de financiamento da emissora, incluindo o sistema de pitching1 adotado. Define como é constituído o perfil da emissora, com base na descrição da grade semanal de programação, distribuída em horários e gêneros, através de um mapeamento geral dos programas, e uma breve análise comparativa da grade entre três emissoras: TV Globo, TV Cultura e TV Brasil 2009-2010. Trata-se de uma pesquisa exploratória. A metodologia central é a de Estudo de Caso (YIN, 2005), de natureza qualitativa. Examina as mudanças e tendências apresentadas no decorrer do período estudado. Apesar de existirem dificuldades de gestão e de ordem técnica relacionadas à transmissão, abrangência e qualidade do sinal, bem como a da ausência de verbas para a divulgação e constituição de sua programação, a TV Brasil oferece um novo paradigma para o campo público de rádio e televisão. Confirma, assim, sua viabilidade como um modelo alternativo e democrático de gestão e de funcionamento da televisão pública no país, ao se transformar num agente de fomento para a integração da sociedade brasileira. Vale ressaltar, no entanto, que a emissora encontra-se, ainda, em busca de novos caminhos e deverá aperfeiçoar-se ao longo do processo de sua consolidação, seja no âmbito de sua gestão ou de sua programação.