Instructional Approaches That Increase Reading Achievement for Boys, Grades 3-6

An achievement gap persists in many educational settings with females outperforming males in reading. In a Southern California school district, reading scores for boys average 10 percentile points below those of girls. A qualitative case study was conducted to explore which instructional approaches can help close this gender gap. The conceptual framework for this study was based on engagement theory, which proposes that students who are engaged in learning tasks achieve at higher levels. The guiding question asked how reading achievement for boys in Grades 3-6 could be improved in the district under study. Semistructured individual interviews were conducted with 4 teachers from different schools and grade levels who\u27s boys, according to district officials, had demonstrated a strong increase in reading achievement. Content analysis of interview transcripts used a 2-cycle coding method to find emerging themes. Participants indicated 5 instructional approaches that contributed to an increase in reading achievement for boys: differentiated reading instruction, collaborative learning, motivation, goal setting and monitoring, and positive teacher-student relationships. Understanding how teachers can improve reading achievement for boys may contribute knowledge about how to improve achievement for all students in other grades in this district, help close achievement gaps, and improve the chance of getting into college for all students

Submersed sensing electrode used in fuel-cell type hydrogen detector

Electrode has silicone rubber diffusion barrier with fixed permeation constant for hydrogen. Barrier controls flow of hydrogen to anode and Faraday relationship establishes upper limit for current through cell. Electrode fabrication is described

Improved fuel-cell-type hydrogen sensor

Modified hydrogen sensor replaces oxygen cathode with a cathode consisting of a sealed paste of gold hydroxide and a pure gold current collector. The net reaction which occurs during cell operation is the reduction of the gold hydroxide to gold and water, with a half-cell potential of 1.4 volts

ONATE, A. M. Ficção e tempo na filosofia de Edmund Husserl . Tomo II. Porto Alegre: Editora Fi, 2019, 174p.

No segundo volume de Ficção e tempo na filosofia de Edmund Husserl o professorAlberto M. Onate prossegue com as análises iniciadas no volume anterior de sua obra(este publicado em 2016) centrando-se em duas obras: Ideias para uma fenomenologiapura e uma filosofia fenomenológica I – Introdução geral na fenomenologia pura (1976) e Ideiaspara uma fenomenologia da consciência interna do tempo (1893-1917)

ONATE, A. M. Ficção e tempo na filosofia de Edmund Husserl . Tomo I. Porto Alegre: EdiPUCRS, 2016, 198p.

Ficção e tempo na filosofia de Edmund Husserl é um trabalho investigativo pelo qualo autor Alberto Marcos Onate se propõe analisar a totalidade da obra husserliana como intuito de obter uma compreensão decisiva do papel que a ficção e o tempodesempenham em cada etapa do pensamento de Husserl

Regulation of estuarine primary production by watershed rainfall and river flow

Enhanced phytoplankton production and algal blooms, symptoms of eutrophication, are frequently caused by elevated nutrient loading, usually as nitrogen, to coastal waters. This nitrogen is derived primarily from anthropogenic sources (urban, industrial, and agricultural) but is delivered to coastal waters through meteorological and hydrological means. We utilized a 4 yr monthly data set to investigate the effect of these upstream physical forces upon primary productivity of the Neuse River Estuary (North Carolina, USA), a large temperate coastal plain estuary. Our results indicate that the magnitude of estuarine primary production and the periodicity of algal blooms can be directly related to variations in upper watershed rainfall and its subsequent regulation of downstream river flow. Future changes in precipitation patterns for coastal regions may thus lead to substantial alterations in coastal primary productivity rates and patterns

Consistency checks of results from a Monte Carlo code intercomparison for emitted electron spectra and energy deposition around a single gold nanoparticle irradiated by X-rays

Organized by the European Radiation Dosimetry Group (EURADOS), a Monte Carlo code intercomparison exercise was conducted where participants simulated the emitted electron spectra and energy deposition around a single gold nanoparticle (GNP) irradiated by X-rays. In the exercise, the participants scored energy imparted in concentric spherical shells around a spherical volume filled with gold or water as well as the spectral distribution of electrons leaving the GNP. Initially, only the ratio of energy deposition with and without GNP was to be reported. During the evaluation of the exercise, however, the data for energy deposition in the presence and absence of the GNP were also requested. A GNP size of 50 nm and 100 nm diameter was considered as well as two different X-ray spectra (50 kVp and 100 kVp). This introduced a redundancy that can be used to cross-validate the internal consistency of the simulation results. In this work, evaluation of the reported results is presented in terms of integral quantities that can be benchmarked against values obtained from physical properties of the radiation spectra and materials involved. The impact of different interaction cross-section datasets and their implementation in the different Monte Carlo codes is also discussed

Imaging Molecular Structure through Femtosecond Photoelectron Diffraction on Aligned and Oriented Gas-Phase Molecules

This paper gives an account of our progress towards performing femtosecond time-resolved photoelectron diffraction on gas-phase molecules in a pump-probe setup combining optical lasers and an X-ray Free-Electron Laser. We present results of two experiments aimed at measuring photoelectron angular distributions of laser-aligned 1-ethynyl-4-fluorobenzene (C8H5F) and dissociating, laseraligned 1,4-dibromobenzene (C6H4Br2) molecules and discuss them in the larger context of photoelectron diffraction on gas-phase molecules. We also show how the strong nanosecond laser pulse used for adiabatically laser-aligning the molecules influences the measured electron and ion spectra and angular distributions, and discuss how this may affect the outcome of future time-resolved photoelectron diffraction experiments.Comment: 24 pages, 10 figures, Faraday Discussions 17