998 research outputs found

    Planting Reconnaissance in District 1

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    Due to the great devastation to reproduction and young growth caused by fire and lumbering (the former by far the greater cause) District I of the United States Forest Service has for a number of years past, resorted to artificial regeneration or forest planting

    A new approach to automatically evaluate problems that are solved using diagrams

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    Automatic correction of problems that are solved using diagrams through educational platforms is of great importance, especially in the field of engineering studies. In this paper, we present a new strategy to automatically assess diagrams. The proposed approach is described in detail as well as its application to assess entity/relationship diagrams used in the conceptual design of databases. The results indicate that the differences between manual and automatic assessment is less than 075 points over a total of ten which confirms the validity of the proposed approach. As a conclusion, the validity of the proposed method to assess entity/relationship diagrams reducing teacher correction time and unifying applied correction criteria is corroborated

    From NCLB to ESSA: Implications for Teacher Preparation and Policy

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    With the 2001 reauthorization of the Elementary and Secondary Education Act (ESEA), the term highly qualified teacher (HQT) became an important component of teacher licensure, including for special educators. However, when ESEA was reauthorized in 2015 as the Every Student Succeeds Act (ESSA), the highly qualified regulations were removed. The purpose of this study was to look back at the historical record of policy implementation of HQT and compare the record across states to provide implications for teacher preparation and licensure policy in the era of ESSA. This was accomplished through a review of the history of special education teacher licensure and completion of a comprehensive analysis of state licensure requirements under the Individuals with Disabilities Education Improvement Act. Despite a general consistency across three domains (i.e., degree, examination, and licensure) of the highly qualified statute, inconsistencies among states at both the elementary and secondary levels of special educator licensure may yield significant challenges related to the impact of teacher quality on student outcomes. Better understanding of these challenges is important as policymakers will be better able to make decisions regarding what teachers need to know prior to entering the field to meet students’ needs and generate student achievement

    La plaqueta pintada del yacimiento epipaleolítico de Picamoixons (Alt Camp, Tarragona) : aproximación al estudio de la cadena operativa

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    En este trabajo se presenta el estudio realizado sobre una plaqueta pintada localizada en el yacimiento de Picamoixons, cuya cronología oscila entre 9.l70±80 y 11.050±90 B.P. A su vez se desarrolla una metodología referida al medio de aplicación de la pintura mediante las técnicas digital, pincel y "a crayon", en base a un programa experimental. Se describen los primeros resultados y su aplicación a la plaqueta de Picamoixons.In this work we present the study concerning a painted tablet on limestone located at the Picamoixons site, whose dating stands between 9.170±80 and 11.050±90 B.P. At the same time, a methodology is currently being developed regarding the means of application of (he painting through the digital, paintbrush and "a crayon" techniques, based on an experimental programo The frrst results and their application on the Picamoixons tablet are described

    A fast and easy approach to the simulation of binary mixtures sorption kinetics

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    Diffusivity of a component in a binary mixture is affected by the presence of a second component. The knowledge of the influence on each other component diffusivity is very useful for the prediction of sorption kinetics of binary mixtures. In this work kinetic studies of Cr(VI) and Cu(II) binary mixtures sorption onto exhausted coffee encapsulated in calcium alginate beads were carried out in both bench and pilot scale experiments. The spectroscopic analysis evidenced the complexity of the process since different mechanisms such as adsorption, redox reaction and ion exchange are involved. Experimental data were fitted to the Linear Adsorption Model (LAM). An empirical quadratic model was developed to estimate LAM parameters (De) and α = Cf/(Ci − Cf) as a function of the initial concentration of metals in the mixture. The empirical model developed enables to estimate the LAM parameters (De and α) of metal ions binary mixtures provided that the initial concentration of the metal ions is included in the range of concentrations studied. The estimated parameters introduced in LAM equation allow simulating the corresponding binary mixtures sorption kinetics. This study constitutes a fast and easy approach to the modelling of sorption kinetics of complex systems in which different processes take place simultaneously
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