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Copyright of Diálogos Pedagógicos is the property of Universidad Catolica de Cordoba and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Creneida is the property of Creneida and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Hipogrifo: revista de literatura y cultura del siglo de oro is the property of Hipogrifo: revista de literatura y cultura del siglo de oro and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Echinocytes are a morphological variation of red blood cells (RBC) where the erythrocyte appears smaller with spicules regularly distributed on its surface. This alteration can be seen under certain experimental conditions, as it happens when RBCs are placed on a slide for observation under a microscope and thus crenate due to glass effect. The procedure to remove noise from an image is based in the decomposition of the observed signal in Wavelets and taking threshold values to select the appropriate coefficients through which the signal can be then reconstructed. The purpose of this paper is to classify different alterations in the morphology of suspended fresh human RBC by utilizing shape descriptors and adding noise elimination by Wavelet Transform. RBCs were suspended in media consisting of physiological solution and human serum albumin at different concentrations, and the Haar wavelet was used to eliminate noise of the digital images obtained. The results are useful for the quantification of RBCs crenated due to glass effect, and the image analysis technique presented here has potential application to automatize the countdown and classification of RBCs with different morphologies, to be able to correlate them with haematological pathologies. [ABSTRACT FROM AUTHOR]

This article analyzes Delibes' diaristic trilogy, whose absolute protagonist is the caretaker Lorenzo: Diario de un cazador (1955), Diario de un emigrante (1958) and Diario de un jubilado (1995). The choice of the fictitious diary is strongly linked with the author's psychological insight into a character whose personality barely develops, with the day-to-day dimension of life and the ironical use of the colloquial register, a symbol of Lorenzo's narrow-mindedness. [ABSTRACT FROM AUTHOR]

In this paper the conditions under which fresh human red blood cells can be observed using conventional microscopy, without their morphology being altered due to "glass effect" (crenation of red blood cells in contact with the glass surface of the slide) are investigated. For this purpose, suspension media were tested with different concentrations of human serum albumin in physiological solution (from 0.002 to 20% v/v). Erythrocytes from healthy donors were previously separated by centrifuging the blood samples and suspended in these solutions. In the absence of plasma proteins, erythrocytes crenate when in contact with glass. In order to obtain a percentage of crenation of these samples, the evolution in time was captured, taking photographs of each sample under an inverted optical microscope at three minutes intervals. Graphs of the percentage of crenation of GR as a function of time for each of the concentrations studied were obtained by analysis of the digital images. Statistical analysis of the results shows that the suspension medium with final concentration of 1% v/v is the most appropriate to work with, as it has the lowest percentage of crenation which, in addition, does not increase over time. [ABSTRACT FROM AUTHOR]