Estimation of Asymmetric Spatial Autoregressive Dependence on Irregular Lattices

In spatial econometrics, we usually assume that the spatial dependence structure is known and that all information about it is contained in a spatial weights matrix W. However, in practice, the structure of W is unknown a priori and difficult to obtain, especially for asymmetric dependence. In this paper, we propose a data-driven method to obtain W, whether it is symmetric or asymmetric. This is achieved by calculating the area overlap of the adjacent regions/districts with a given shape (a pizza-like shape, in our case). With W determined in this way, we estimate the potentially asymmetric spatial autoregressive dependence on irregular lattices. We verify our method using Monte Carlo simulations for finite samples and compare it with classical approaches such as Queen’s contiguity matrices and inverse-distance weighting matrices. Finally, our method is applied to model the evolution of sales prices for building land in Brandenburg, Germany. We show that the price evolution and its spatial dependence are mainly driven by the orientation towards Berlin

A percepção de adolescentes e de pais sobre decisão e autonomia

This study attempted to investigate decisional autonomy in Turkish adolescents from 12 to 18 years. The Perspectives on Adolescent Decision Making (PADM) questionnaire was administered to 372 middle class adolescents who attend middle and high schools and to their parents. The PADM assess if adolescents decide for themselves, or parents impose restrictions or adolescents and parents have arguments about the topic. MANOVA analyzes were used. Results showed that affirmative answers increased with age. From adolescent and parents' perspectives adolescent decisional autonomy grows with age, parental control decreases, conflicts between them tended to decrease, on the perspective of parents. There was minor gender differences: girls have higher level of decisional autonomy; boys experience more conflict. Adolescents' decisional autonomy expectations tended to be higher than those of parents. Fathers' and mothers' perspectives on decisional autonomy were very similar. The results support the new family model proposed by Kaðýtçýbaþý.Estudo objetivou investigar autonomia de decisão de adolescentes turcos de 12-18 anos de idade. Questionário PADM (Perspectivas na Tomada de Decisões por Adolescentes) foi administrado a 372 adolescentes de classe média, alunos de ensino fundamental e médio e a seus pais. O PADM verifica se adolescentes decidem por si mesmos ou se os pais impõem restrições, também se discutem o assunto. Foram usadas análises MANOVA. Os resultados mostraram que respostas afirmativas aumentam com a idade. Na perspectiva de pais e adolescentes a autonomia para tomada de decisões aumenta com a idade, o controle parental diminui, conflitos tendem a diminuir. Houve pequena diferença de gênero: meninas têm maior nível de autonomia decisional, meninos experimentam mais conflitos. As expectativas de autonomia decisional dos adolescentes tendem a ser maiores que as dos pais. Perspectivas de pais e mães sobre autonomia foram bastante similares; os resultados suportam o modelo de família proposto por Kaðýtçýbaþý

Infrared Jntensities of Liquids IV: Recent Measurements of Infrared Optical Constants and Absolute Infrared Absorption Intensities of Liquids by Multiple Attenuated Total Reflectance

Recent refinements are described to the CIRCLE, multiple attenuated total reflection method for measuring infrared optical and dielectric constants, absolute integrated intensities and, hence, molecular dipole derivatives. Attention is focussed on the accuracy of the method, which is estimated from measurements on H20 (1) and D20 (1).The real and imaginary optical constants agree with literature values to < 1.5% and about 6%, respectively, which is about the agreement of the literature values. The integrated areas agree with literature values to < 2%, and OH and OD bond dipole derivatives for H20 and D20 agree to < 10f0. pATR, refractive index, dielectric constant, and absorption cross section spectra are reported from 8000to 350 cm? for 2-butanol, and integrated absolute absorption intensities and bond dipole derivatives are presented for 2-butanol, 2-hexanol, and 2-octanol and compared with those for primary alcohols and water

Infrared Jntensities of Liquids IV: Recent Measurements of Infrared Optical Constants and Absolute Infrared Absorption Intensities of Liquids by Multiple Attenuated Total Reflectance

Recent refinements are described to the CIRCLE, multiple attenuated total reflection method for measuring infrared optical and dielectric constants, absolute integrated intensities and, hence, molecular dipole derivatives. Attention is focussed on the accuracy of the method, which is estimated from measurements on H20 (1) and D20 (1).The real and imaginary optical constants agree with literature values to < 1.5% and about 6%, respectively, which is about the agreement of the literature values. The integrated areas agree with literature values to < 2%, and OH and OD bond dipole derivatives for H20 and D20 agree to < 10f0. pATR, refractive index, dielectric constant, and absorption cross section spectra are reported from 8000to 350 cm? for 2-butanol, and integrated absolute absorption intensities and bond dipole derivatives are presented for 2-butanol, 2-hexanol, and 2-octanol and compared with those for primary alcohols and water

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Laser-controlled fluorescence in two-level systems

The ability to modify the character of fluorescent emission by a laser-controlled, optically nonlinear process has recently been shown theoretically feasible, and several possible applications have already been identified. In operation, a pulse of off-resonant probe laser beam, of sufficient intensity, is applied to a system exhibiting fluorescence, during the interval of excited- state decay following the initial excitation. The result is a rate of decay that can be controllably modified, the associated changes in fluorescence behavior affording new, chemically specific information. In this paper, a two-level emission model is employed in the further analysis of this all-optical process; the results should prove especially relevant to the analysis and imaging of physical systems employing fluorescent markers, these ranging from quantum dots to green fluorescence protein. Expressions are presented for the laser-controlled fluorescence anisotropy exhibited by samples in which the fluorophores are randomly oriented. It is also shown that, in systems with suitably configured electronic levels and symmetry properties, fluorescence emission can be produced from energy levels that would normally decay nonradiatively. © 2010 American Chemical Society

Design and Bolometer Characterization of the SPT-3G First-year Focal Plane

During the austral summer of 2016-17, the third-generation camera, SPT-3G, was installed on the South Pole Telescope, increasing the detector count in the focal plane by an order of magnitude relative to the previous generation. Designed to map the polarization of the cosmic microwave background, SPT-3G contains ten 6-in-hexagonal modules of detectors, each with 269 trichroic and dual-polarization pixels, read out using 68x frequency-domain multiplexing. Here we discuss design, assembly, and layout of the modules, as well as early performance characterization of the first-year array, including yield and detector properties.Comment: Conference proceeding for Low Temperature Detectors 2017. Accepted for publication: 27 August 201