173,437 research outputs found
Castaneda, C.
No full textCentro Asturiano membership record of C. Castaneda; Socio Number: 99265.https://digitalcommons.usf.edu/asturiano_membership/1836/thumbnail.jp
DInSAR measurements of ground deformation by sinkholes, mining subsidence, and landslides, Ebro River, Spain
No full textDifferential Interferometric Synthetic Aperture Radar (DInSAR) has been applied to detect and measure ground deformation in a stretch of the Ebro River valley (Spain) excavated in salt-bearing evaporites. The capability of the Small Baseline Subset (SBAS) DInSAR technique to detect ground displacement is analyzed comparing the DInSAR results with the available geomorphological information. The deformation map derived from 27 European Remote Sensing (ERS) satellite images covering more than five years provides sub-centimeter displacement measurements in zones coinciding with known active sinkholes and landslides. Moreover the map provides the first account of mining subsidence in the area. The measured deformation rates reach 1.68 cm/y for the sinkholes, 0.80 cm/y for the landslides and 1.45 cm/y for the area affected by mining subsidence. The SBAS DInSAR technique provided deformation measurements in a small proportion (5-10%) of the known active sinkholes and landslides. This limitation is mainly due to the lack of coherence in agricultural areas, the spatial resolution of the deformation map (pixel size of 90 m), and the parallelism between the ERS satellite line of sight and the linear escarpment on which most of the landslides occur. Despite this, the interferometric technique provides valuable data that complement traditional geomorphological studies including the quantification of the deformation phenomena, the identification of mining subsidence otherwise only recognizable by geodetic methods, and the detection of creep deformation which might correspond to premonitory indicators of catastrophic sinkholes and landslides capable of causing the loss of lives. Detailed DInSAR studies combined with field data would be required to improve the analysis of each deformation area. Copyright (C) 2009 John Wiley & Sons, Ltd. RI Castaneda, Carmen/E-7588-201
El antropólogo como aprendiz.A propósito de Carlos Castaneda y Las enseñanzas de don Juan, cuarenta años después [The anthropologist as an apprentice: Carlos Castaneda and The Teachings of Don Juan, forty years later]
No full textSince the publication in 1968 of his first and best known book, The Teachings of Don Juan, Carlos Castaneda has evoked many kinds of opposing reaction. Looking beyond his contested ethnographic rigour, his texts –mainly his early ones— relate the development of an educational process, that of his own at the hands of a Yaqui shaman called Don Juan. This article describes this apprenticeship with the goal of characterizing the anthropological-educational model that underlies it. A rereading of the writings of Castaneda, from the distance of the time that has elapsed, suggests to us the necessity for social science to explore other horizons, other modes of thought, based on the awareness of the error and the insufficiency of the epistemologies governed by technological reason.Desde la publicación de su primera y más conocida obra, Las enseñanzas de don Juan, en 1968, Carlos Castaneda ha despertado de todo tipo reacciones contrapuestas. Al margen de su discutible rigor etnográfico, sus textos -fundamentalmente los primeros- relatan el desarrollo de un proceso educativo, el suyo propio, de la mano de un chamán yaqui llamado don Juan. Este artículo pretende describir ese proceso de aprendizaje, a fin de caracterizar el modelo antropológico-educativo que lo sustenta. La relectura, con la distancia del tiempo transcurrido, de los escritos de Castaneda, nos sugiere la necesidad de que la ciencia social explore otros horizontes, otros modos de conocimiento, basados en la conciencia del error y de la insuficiencia de las epistemologías regidas por la razón tecnológica
Independent component analysis and source analysis of auditory evoked potentials for assessment of cochlear implant users
No full textSource analysis of the Auditory Evoked Potential (AEP) has been used before to evaluate the maturation of the auditory system in both adult and children; in the same way, this technique could be applied to ongoing EEG recordings, in response to acoustic specific frequency stimuli, from children with cochlear implants (CI). This is done in oder to objectively assess the performance of this electronic device and the maturation of the child?s hearing. However, these recordings are contaminated by an artifact produced by the normal operation of the CI; this artifact in particular makes the detection and analysis of AEPs much harder and generates errors in the source analysis process. The artifact can be spatially filtered using Independent Component Analysis (ICA); in this research, three different ICA algorithms were compared in order to establish the more suited algorithm to remove the CI artifact. Additionally, we show that pre-processing the EEG recording, using a temporal ICA algorithm, facilitates not only the identification of the AEP peaks but also the source analysis procedure. From results obtained in this research and limited dataset of CI vs normal recordings, it is possible to conclude that the AEPs source locations change from the inferior temporal areas in the first 2 years after implantation to the superior temporal area after three years using the CIs, close to the locations obtained in normal hearing children. It is intended that the results of this research are used as an objective technique for a general evaluation of the performance of children with CIs
Gα/GSA-1 works upstream of PKA/KIN-1 to regulate calcium signaling and contractility in the Caenorhabditis elegans spermatheca
No full textTime-lapse movies of animals expressing GCaMP3 in the C. elegans spermatheca
ALS-linked mutations affect UBQLN2 oligomerization and phase separation in a position- and amino acid-dependent manner. Dao, Martyniak et al.
No full textMicroscopy data for ALS-linked mutations in the UBQLN2 450-624 background. Imaging data for Figures 1, 2, and 6 are provided
Ubiquitin modulates liquid-liquid phase separation of UBQLN2 via disruption of multivalent interactions. Dao et al.
No full textThis dataset contains the original microscopy and gel images for Dao et al. main figures and supplementary info
C. Castaneda, L'Herbe du diable et la petite fumée. Une voie yaqui de la connaissance — Voir. Les enseignements d'un sorcier yaqui
No full textLizot Jacques. C. Castaneda, L'Herbe du diable et la petite fumée. Une voie yaqui de la connaissance — Voir. Les enseignements d'un sorcier yaqui. In: L'Homme, 1973, tome 13 n°4. pp. 162-163
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Convenient synthesis of multifunctional EDTA-based chiral metal chelates substituted with an S-mesylcysteine
No full textWe describe the synthetic route to ethylenediaminetetra acetic acid (EDTA) derivatives that can be attached to surface-exposed thiol functional groups of cysteine residues in proteins, via a methylthiosulfonate moiety that is connected in a stereochemically unique way to the C-1 carbon atom of EDTA. Such compounds can be used to align proteins in solution without the need to add liquid crystalline media, and are, therefore, of great interest for the NMR spectroscopic analysis of biomolecules. The binding constant for the paramagnetic tag to lanthanide ions was determined by measuring luminescence. For the Tb+3-ligand complex, a K-b value of 6.5 x 10(17) m(-1) was obtained. This value is in excellent agreement with literature values for the related EDTA compound. In addition, it could be shown that there is no significant reduction in the luminescence intensity upon addition of a 10(4) excess of Ca2+ ions, indicating that this paramagnetic tag is compatible with buffers containing high concentrations of divalent alkaline earth ions
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