Search results for "Trie"
showing 10 items of 4468 documents
Circular Economy and Value Creation: Sustainable Finance with a Real Options Approach
2021
This paper presents a methodological proposal that integrates the circular economy concept and financial valuation through real options analysis. The Value Hill model of a circular economy provides a representation of the course followed by the value of an asset. Specifically, after the primary use, the life of an asset may be extended by going through four phases: the 4R phases (Reuse, Refurbish, Remanufacture and Recycle). Financial valuation allows us to quantify value creation from firms’ asset circularity under uncertainty, modelled by binomial trees. Furthermore, the 4R phases are valued as real options by applying no-arbitrage opportunity arguments. The major contribution of this pap…
5-6 GADUS VECU BĒRNU RADOŠUMA ATTĪSTĪBA MĀKSLAS NODARBĪBĀS
2018
Diplomdarba nosaukums: 5-6 gadus vecu bērnu radošuma attīstība mākslas nodarbībās. Darba autore: Irina Dmitrijeva Zinātniskais vadītājs: Ilze Briška Diplomdarba apjoms: 79 lpp, attēli, pielikumi, izmantoti literatūras avoti. Pētījuma mērķis: pētīt skolotāju iespējas sekmēt bērnu radošumu vizuālās mākslas nodarbībās. Pētījuma hipotēze: Veikt pētījumu 5-6 gadus vecu bērnu radošumu attīstībā, izstrādāt uzdevumus bērniem radošuma vecināšanai, aprobēt izstrādātos uzdevumus, apkopot un analizēt rezultātus. Teorētiskajā daļā apkopotas un analizētas Roberta Fišera, Birutas Frīdenbergas, Valentīnas Hibneres, un daudzu citu autoru atziņas par radošumu. Praktiskajā daļā tika izmantotas Birutas Frīdenb…
Effects of Biochar on Irrigation Management and Water Use Efficiency for Three Different Crops in a Desert Sandy Soil
2020
This paper aimed at investigating if the application of biochar (BC) to desert sand (DS) from the United Arab Emirates (UAE), characterized by a very poor soil-water retention (SWR) and by a very low value of the maximum water available for crops (AWmax), could positively affect soil water balance, by reducing the irrigation needs (VIRR) and improving the irrigation water use efficiency (IWUE) and the water use efficiency (WUE). The analysis was performed for three crops, i.e., wheat (Triticum aestivum), sorghum (Sorghum vulgare) and tomato (Lycopersicon esculentum). BC was applied to the DS at different fractions, fBC (fBC = 0, 0.091, 0.23 and 0.33). Drip irrigation was adopted as a highly…
Effects of Saline and Deficit Irrigation on Soil-Plant Water Status and Potato Crop Yield under the Semiarid Climate of Tunisia
2019
Water supplies have been decreasing in several semi-arid regions, and it is therefore necessary to adopt irrigation strategies aimed at maximizing water use efficiency. In this paper, the effects of saline and deficit irrigation on water use efficiency and on potato crop response, based on observations of soil and plant water status, were investigated. Experiments were carried out in Central Tunisia, by monitoring potato crop growth during two seasons in four distinct treatments (T1&ndash
Efecto del consumo de soja en la longevidad de ratones OF1 machos
2013
Encontrar buenos modelos de envejecimiento es un objetivo importante de la Gerontología. La diferencia de género en la longevidad, es decir, el hecho de que las hembras viven alrededor del 10% más que los machos en muchas especies, incluida la especie humana, ofrece una oportunidad única para estudiar los aspectos fundamentales del envejecimiento. En el contexto de la teoría mitocondrial de radicales libres en el envejecimiento, estudios realizados por nuestro grupo de investigación han encontrado que la producción de especies reactivas de oxígeno es aproximadamente el doble en los machos en comparación con las hembras (Borras et al., 2003). Así, dichas diferencias de longevidad entre macho…
Reducing the Human Effort in Text Line Segmentation for Historical Documents
2021
Labeling the layout in historical documents for preparing training data for machine learning techniques is an arduous task that requires great human effort. A draft of the layout can be obtained by using a document layout analysis (DLA) system that later can be corrected by the user with less effort than doing it from scratch. We research in this paper an iterative process in which the user only supervises and corrects the given draft for the pages automatically selected by the DLA system with the aim of reducing the required human effort. The results obtained show that similar DLA quality can be achieved by reducing the number of pages that the user has to annote and that the accumulated h…
A relevance feedback CBIR algorithm based on fuzzy sets
2008
CBIR (content-based image retrieval) systems attempt to allow users to perform searches in large picture repositories. In most existing CBIR systems, images are represented by vectors of low level features. Searches in these systems are usually based on distance measurements defined in terms of weighted combinations of the low level features. This paper presents a novel approach to combining features when using multi-image queries consisting of positive and negative selections. A fuzzy set is defined so that the degree of membership of each image in the repository to this fuzzy set is related to the user's interest in that image. Positive and negative selections are then used to determine t…
Programm des städtischen Realgymnasiums zu Riga
1867
Inhalt: 1. Hannibal und Scipio, eine historisch kritische Abhandlung / vom Gimnasial Lehrer W. Maczewski -- 2. Schulnachrichten / vom Director.
Kapitāla augļi kā ražošanas izmaksa
1933
Saturs (nodaļas): I. Ievads. II. Vai kapitāla augļi ir izmaksas sastāvdaļa? III. Kapitāla augļi pašizmaksas un rezultātu aplēsēs. IV. Kapitāla augļu kā izmaksas sastāvdaļas aplēšana un grāmatošana. V. Slēdziens. Die Kapitalzinsen als Produktionskosten (Zusammenfassung)
Interactions, spillovers de connaissance et croissance des villes européennes. Faut-il préférer la géographie, le climat institutionnel ou les réseau…
2013
Knowledge spillovers within urban economies are also sources of spillovers between cities. We examine how knowledge spillovers influenced the economic growth of 82 European metropolises over the 1990-2005 period. We model knowledge spillovers between cities on the basis of five specific interaction patterns based on geography, networks of multinational firms in advanced services, institutional climate and two combinations of these factors. Spatial models are estimated to detail the effects of growth factors in terms of spillovers and externalities. We show that spillovers are local rather than global and that interactions among cities accelerate the convergence process based on gross value …