Search results for " Ear"

Planificación de la educación preescolar y EGB en la provincia de Valencia : el modelo REA-85

1985

Evaluación de la situación actual y elaborar una planificación educativa racional de la provincia de Valencia, municipio a municipio, en los niveles de Educación Preescolar y General Básica, en función de las variables demográficas, geográficas, socioeconómicas y educativas y de su incidencia en la consideración de las necesidades escolares proyectadas al futuro. Compuesta por la población de 0 a 16 años de la provincia de Valencia de 1970, 1975 y 1980. Tras un análisis geográfico, socioeconómico, demográfico y de la Educación Preescolar y de EGB en la provincia se pretende realizar, basado en el modelo REA-85: un modelo de proyección de población para la obtención de las tasas de escolariz…

Wetland Restoration with Hydrophytes: A Review

2021

Restoration cases with hydrophytes (those which develop all their vital functions inside the water or very close to the water surface, e.g., flowering) are less abundant compared to those using emergent plants. Here, I synthesize the latest knowledge in wetland restoration based on revegetation with hydrophytes and stress common challenges and potential solutions. The review mainly focusses on natural wetlands but also includes information about naturalized constructed wetlands, which nowadays are being used not only to improve water quality but also to increase biodiversity. Available publications, peer-reviewed and any public domain, from the last 20 years, were reviewed. Several countrie…

Raman Investigations to Identify Corallium rubrum in Iron Age Jewelry and Ornaments

2016

International audience; During the Central European Iron Age, more specifically between 600 and 100 BC, red precious corals (Corallium rubrum) became very popular in many regions, often associated with the so-called (early) Celts. Red corals are ideally suited to investigate several key questions of Iron Age research, like trade patterns or social and economic structures. While it is fairly easy to distinguish modern C. rubrum from bone, ivory or shells, archaeologists are confronted with ancient, hence altered, artifacts. Due to ageing processes, archaeological corals lose their intensive red color and shiny surface and can easily be confused with these other light colored materials. We pr…

Comparison of the Properties of Activated Carbons Produced in One-Stage and Two-Stage Processes

2018

Activated carbons (ACs) can be produced from biomass in a thermal process either in a direct carbonization-activation process or by first carbonizing the biomass and later activating the bio-chars into activated carbons. The properties of the ACs are dependent on the type of process used for production. In this study, the properties of activated carbons produced in one-stage and two-stage processes are considered. Activated carbons were produced by physical activation of two types of starting materials: bio chars produced from spruce and birch chips in a commercial carbonization plant and from the corresponding raw chips. The activated carbons produced were characterized regarding specific …

Effects of pyrolysis temperature on the hydrologically relevant porosity of willow biochar

2018

Biochar pore space consists of porosity of multiple length scales. In direct water holding applications like water storage for plant water uptake, the main interest is in micrometre-range porosity since these pores are able to store water that is easily available for plants. Gas adsorption measurements which are commonly used to characterize the physical pore structure of biochars are not able to quantify this pore-size range. While pyrogenetic porosity (i.e. pores formed during pyrolysis process) tends to increase with elevated process temperature, it is uncertain whether this change affects the pore space capable to store plant available water. In this study, we characterized biochar poro…

Measures of performance for the portfolio management

2012

Effect of Er3+-doping on 65GeS2-25Ga2S3-10CsCl glass probed by annihilating positrons

2019

Abstract Effect of Er3+-doping resulting in pronounced mid-IR fluorescence functionality was examined first in chalcohalide 65GeS2-25Ga2S3-10CsCl glass using positron annihilation lifetime (PAL) spectroscopy. The detected PAL spectra were reconstructed from unconstrained x2-term analysis employing two-state simple trapping model for one kind of positron trapping free-volume defects, the parameterization being performed at the example of 65GeS2-25Ga2S3-10CsCl glass doped with 0.6 at. % of Er3+. The observed decrease in positron trapping rate was proved to be primary void-evolution process in this Er-activated glass, like in many other chalcogenide glasses affected by rare earth doping. The n…

Power Line Monitoring through Data Integrity Analysis with Q-Learning Based Data Analysis Network

2022

To monitor and handle big data obtained from electrical, electronic, electro-mechanical, and other equipment linked to the power grid effectively and efficiently, it is important to monitor them continually to gather information on power line integrity. We propose that data transmission analysis and data collection from tools like digital power meters may be used to undertake predictive maintenance on power lines without the need for specialized hardware like power line modems and synthetic data streams. Neural network models such as deep learning may be used for power line integrity analysis systems effectively, safely, and reliably. We adopt Q-learning based data analysis network for anal…

Ruch w twórczości rysunkowej dzieci w wieku przedszkolnym i wczesnoszkolnym

2020

W artykule podjęto rozważania teoretyczne, ale także analizy empiryczne – na podstawie badań przeprowadzonych wśród dzieci 5–6-letnich i uczniów edukacji wczesno-szkolnej – nad zagadnieniem trudnej sztuki obrazowania ruchu w rysunku. Analiza 1471 dziecięcych rysunków dowiodła, że badane dzieci na ogół tworzą rysunki, które charakteryzuje brak dynamiki (51,3%), czasem jednak podejmują próby zobrazowania ruchu – mniej lub bardziej udane. Najczęściej dzieci czynią to poprzez zgięcie kończyny, inne ułożenie ciała, czasem stosują zróżnicowanie wielkości sylwetek i sugerują ruch za pomocą strzałek, kresek lub smug podkreślających dynamizm sytuacji, rzadziej zaznaczają ujęcie profilowe i zgięcie k…

Priming effect increases with depth in a boreal forest soil

2016

Abstract Climate warming increases labile carbon (C) inputs to soil through increased photosynthesis and C allocation belowground. This could counterintuitively lead to losses of soil C via priming effects (PE): the stimulation of soil organic matter (SOM) decomposition caused by labile C addition. Systematic quantification of PEs in different ecosystems is needed. We measured PEs of free-living soil microbes in different layers of a boreal forest soil, and found that the relative magnitude of the PE increased with soil depth. The relationship between relative PE and the added glucose amount also depended on the soil layer. Our results indicate that the decomposition of SOM in deeper soil l…