Search results for "orf"
showing 10 items of 1406 documents
Valdorfa pedagoģija darbā ar apdāvinātiem bērniem
2022
Neraugoties uz to, ka termini “Valdorfpedagoģija” un “apdāvinātība”, vēl nav definēti Izglītības likumā, tomēr šie izglītības procesi tiek pētīti jau sen – filozofijas, psiholoģijas un pedagoģijas teorijās, un izmantoti skolu praksē. Apdāvinātības un Valdorfpedagoģijas loma Izglītības nozarē ir nozīmīga, jo par ģenialitāti, talantiem, mācību disciplīnu un akadēmiskiem sasniegumiem tiek pētīts daudz, un tie ir noteicošie faktori izglītības kvalitātes uzlabošanai un pedagogu profesionālās kompetences paaugstināšanai darbā ar apdāvinātiem skolēniem. Izglītības sistēma ir jāveido tā, lai sniegtu atbilstošu un iekļaujošu izglītību visiem bērniem, taču daļai bērnu vienmēr būs speciālas mācīšanās …
A note on topological dimension, Hausdorff measure, and rectifiability
2020
The purpose of this note is to record a consequence, for general metric spaces, of a recent result of David Bate. We prove the following fact: Let $X$ be a compact metric space of topological dimension $n$. Suppose that the $n$-dimensional Hausdorff measure of $X$, $\mathcal H^n(X)$, is finite. Suppose further that the lower n-density of the measure $\mathcal H^n$ is positive, $\mathcal H^n$-almost everywhere in $X$. Then $X$ contains an $n$-rectifiable subset of positive $\mathcal H^n$-measure. Moreover, the assumption on the lower density is unnecessary if one uses recently announced results of Cs\"ornyei-Jones.
Norm or numerical radius attaining polynomials on C(K)
2004
Abstract Let C(K, C ) be the Banach space of all complex-valued continuous functions on a compact Hausdorff space K. We study when the following statement holds: every norm attaining n-homogeneous complex polynomial on C(K, C ) attains its norm at extreme points. We prove that this property is true whenever K is a compact Hausdorff space of dimension less than or equal to one. In the case of a compact metric space a characterization is obtained. As a consequence we show that, for a scattered compact Hausdorff space K, every continuous n-homogeneous complex polynomial on C(K, C ) can be approximated by norm attaining ones at extreme points and also that the set of all extreme points of the u…
Visible parts and dimensions
2003
We study the visible parts of subsets of n-dimensional Euclidean space: a point a of a compact set A is visible from an affine subspace K of n, if the line segment joining PK(a) to a only intersects A at a (here PK denotes projection onto K). The set of all such points visible from a given subspace K is called the visible part of A from K. We prove that if the Hausdorff dimension of a compact set is at most n−1, then the Hausdorff dimension of a visible part is almost surely equal to the Hausdorff dimension of the set. On the other hand, provided that the set has Hausdorff dimension larger than n−1, we have the almost sure lower bound n−1 for the Hausdorff dimensions of visible parts. We al…
One-dimensional families of projections
2008
Let m and n be integers with 0 < m < n. We consider the question of how much the Hausdorff dimension of a measure may decrease under typical orthogonal projections from onto m-planes provided that the dimension of the parameter space is one. We verify the best possible lower bound for the dimension drop and illustrate the sharpness of our results by examples. The question stems naturally from the study of measures which are invariant under the geodesic flow.
Continuous images of arcs: Extensions of Cornette's Theorem
2015
In [J.L. Cornette “Image of a Hausdorff arc” is cyclically extensible and reducible Trans. Am. Math. Soc., 199 (1974), pp. 253–267], Cornette proved that a locally connected Hausdorff continuum X is the continuous image of an arc if and only if each of its cyclic elements is the continuous image of an arc. Cyclic elements form a closed null cover of X by retracts of X. We generalize Cornette's result to closed null covers of X with a dendritic structure. We give examples to show that some of our conditions are necessary and we pose some open questions.
Anthropogenic soils are the golden spikes for the Anthropocene
2011
We propose that the Anthropocene be defined as the last c. 2000 years of the late Holocene and characterized on the basis of anthropogenic soils. This contrasts with the original definition of the Anthropocene as the last c. 250 years (since the Industrial Revolution) and more recent proposals that the Anthropocene began some 5000 to 8000 years ago in the early to mid Holocene (the early-Anthropocene hypothesis). Anthropogenic soil horizons, of which several types are recognized, provide extensive terrestrial stratigraphic markers for defining the start of the Anthropocene. The pedosphere is regarded as the best indicator of the rise to dominance of human impacts on the total environment b…
The Vuelo Ruiz de Alda (1929-30): an exceptional cartographic document. Again about Ilici
2015
Se presenta en este artículo una primera valoración de las posibilidades que para la arqueología, y más concretamente para la estratigrafía del paisaje, encierra un soberbio documento como es la serie fotográfica conocida como Vuelo Ruiz de Alda (1929-30), una vez que los fotogramas han sido ampliamente puestos al alcance de la investigación. Para ello se ponen a prueba las imágenes aplicándolas a dos establecimientos de época ibérica antigua (El Oral y El Molar). Igualmente, se ha retomado una línea de investigación a propósito de la red caminera que afecta al enclave de La Alcudia-Ilici, lo que lleva implícitamente a tratar sobre su catastro romano y la trama parcelaria de todo su entorno…
Materia y forma en Agudeza y arte de ingenio
2009
[Resumen] Este trabajo se propone estudiar la importancia del esquema hilemórfico en la descripción del proceso de creación de las agudezas. Al acudir al marco teórico del compuesto de materia y de forma que domina la metafísica de Aristóteles, Gracián procura definir con la mayor precisión posible la génesis del sentido: cada concepto creado es un acto único que se apoya en un proceso de individuación. La forma confiere sabrosa y a veces lúdicamente a los objetos del lenguaje su unicidad. Sin embargo, la Agudeza, por la jerarquización de formas discursivas que presenta a su lector, impide toda lectura unívoca y reductora de la utilización de estos dos conceptos: cada forma creada parece so…
Passus super universalia Porphyrii, super praedicamenta et perihermeneias Aristotelis
1490
Sign.: A-H8, I6. - Data completa, 20 setembre, 1490 L. gòt. - 2 mides. - 2 col. - 39-40 lín. - Esp. o min. p. inic. - Filigr.: guant o mà