1,107 research outputs found
De la liberalidad del indio
Continuation of a paper entitled 'De la naturaleza del indio', commenting on the circumstances, prosperity, and personal attributes of the indigenous populations of Mexico following the liberalisation of the state. Includes the following sections: 'De la discreccion y elegancia del indio'; 'De la agudeza y prontitud del indio' and 'De la industria del indio'. Possible author, Juan de Palafox y Mendoza. See also 9770.bb.4.(59.
De la naturaleza del indio
Extracts from the work entitled 'Virtudes del indio', commenting on the circumstances, treatment, and personal attributes of the indigenous populations of Mexico since Spanish colonisation. Includes the following sections: 'Del valor y esfuerzo de los indios'; 'Cuan dignos son los indios de la proteccion real, por las utilidades que han causado a la corona de España' and 'De la paciencia del indio'. Possible author, Juan de Palafox y Mendoza. See also 9770.bb.4.(7.
The prediction of organelle-targeting peptides in eukaryotic proteins with Grammatical-Restrained Hidden Conditional Random Fields.
MOTIVATION:
Targeting peptides are the most important signal controlling the import of nuclear encoded proteins into mitochondria and plastids. In the lack of experimental information, their prediction is an essential step when proteomes are annotated for inferring both the localization and the sequence of mature proteins.
RESULTS:
We developed TPpred a new predictor of organelle-targeting peptides based on Grammatical-Restrained Hidden Conditional Random Fields. TPpred is trained on a non-redundant dataset of proteins where the presence of a target peptide was experimentally validated, comprising 297 sequences. When tested on the 297 positive and some other 8010 negative examples, TPpred outperformed available methods in both accuracy and Matthews correlation index (96% and 0.58, respectively). Given its very low-false-positive rate (3.0%), TPpred is, therefore, well suited for large-scale analyses at the proteome level. We predicted that from ∼4 to 9% of the sequences of human, Arabidopsis thaliana and yeast proteomes contain targeting peptides and are, therefore, likely to be localized in mitochondria and plastids. TPpred predictions correlate to a good extent with the experimental annotation of the subcellular localization, when available. TPpred was also trained and tested to predict the cleavage site of the organelle-targeting peptide: on this task, the average error of TPpred on mitochondrial and plastidic proteins is 7 and 15 residues, respectively. This value is lower than the error reported by other methods currently available.
AVAILABILITY:
The TPpred datasets are available at http://biocomp.unibo.it/valentina/TPpred/. TPpred is available on request from the authors
The murals of Estrada Courts. Leopard crouching in a tree, Los Angeles, 1975
The murals of Estrada Courts. Leopard crouching in a tree, Los Angeles, 1975, 3281 East Olympic Boulevard (walkway). In acrylic on stucco, 32' x 24' by Indio and V. Cholo -- Dunitz, Street gallery, p. 298, #28 T. "The murals were produced by a number of Chicano artists from Los Angeles, San Diego, and Northern California between 1972 and 1978, during the height of the Chicano civil rights and art movements" -- Estrada Courts at http://www.heritagepreservation.org/RPM/archive.html (viewed on Dec. 2, 2012)
Al indio constitucional, un ciudadano español intimo suyo
Response to 'El indio constitucional', which urges indigenous populations and Creoles alike to support the Spanish Constitution and its attendant freedoms from tyranny, with a focus on the points raised by 'El indio constitucional', in particular the liberty of the press, openness in political debates, and restraint when dealing with questions of religion and morality. See also 9770.bb.3.(54.
MemPype: a pipeline for the annotation of eukaryotic membrane proteins
MemPype is a Python-based pipeline including previously published methods for the prediction of signal peptides (SPEP), glycophosphatidylinositol (GPI) anchors (PredGPI), all-alpha membrane topology (ENSEMBLE), and a recent method (MemLoci) that specifically discriminates the localization of eukaryotic membrane proteins in: 'cell membrane', 'internal membranes', 'organelle membranes'. MemLoci scores with accuracy of 70% and generalized correlation coefficient (GCC) of 0.50 on a rigorous homology-unbiased validation set and overpasses other predictors for subcellular localization. The annotation process is based both on inheritance through homology and computational methods. Each submitted protein first retrieves, when available, up to 25 similar proteins (with sequence identity ≥50% and alignment coverage ≥50% on both sequences). This helps the identification of membrane-associated proteins and detailed localization tags. Each protein is also filtered for the presence of a GPI anchor [0.8% false positive rate (FPR)]. A positive score of GPI anchor prediction labels the sequence as exposed to 'Cell surface'. Concomitantly the sequence is analysed for the presence of a signal peptide and classified with MemLoci into one of three discriminated classes. Finally the sequence is filtered for predicting its putative all-alpha protein membrane topology (FPR <1%). The web server is available at: http://mu2py.biocomp.unibo.it/mempype
The Identity of PDGFRA D842V-Mutant Gastrointestinal Stromal Tumors (GIST)
The majority of gastrointestinal stromal tumors (GIST) carry a sensitive primary KIT mutation, but approximately 5% to 10% of cases harbor activating mutations of platelet-derived growth factor receptor (PDGFRA), mainly involving the A-loop encoded by exon 18 (~5%), or more rarely the JM domain, encoded by exon 12 (~1%), or the ATP binding domain encoded by exon 14 (<1%). The most frequent mutation is the substitution at position 842 in the A-loop of an aspartic acid (D) with a valine (V) in exon 18, widely recognized as D842V. This mutation, as well known, provides primary resistance to imatinib and sunitinib. Thus, until few years ago, no active drugs were available for this subtype of GIST. Conversely, recent years have witnessed the development of a new specific inhibitor—avapritinib—that has been studied in in vitro and clinical setting with promising results. In light of this primary resistance to conventional therapies, the biological background of D842V-mutant GIST has been deeply investigated to better understand what features characterize this peculiar subset of GIST, and some promising insights have emerged. Hereinafter, we present a comprehensive overview on the clinical features and the molecular background of this rare subtype of GIST
La guerra perdida del Indio Lorenzo, de Rafael Baena: ¿novela indigenista o con indios?
Resumen:
Este artículo analiza la manera en que se da cuenta de lo indígena en La guerra perdida del indio Lorenzo (2015), la última novela publicada en vida por el escritor colombiano Rafael Baena (1956-2015). El pretendido carácter indigenista de la obra, anunciado ya desde el título epónimo, no se correspondería con el protagonismo apenas relativo del personaje de Victoriano Lorenzo ni con otros elementos que problematizan la reivindicación de una cuestión indígena particular.
Palabras clave: Rafael Baena, La guerra perdida del indio Lorenzo, novela colombiana, indios en la literatura, indigenismo literario.
Abstract:
This article analyzes the manner we become aware of the indigenous theme in La guerra perdida del indio Lorenzo (2015), the last novel published by the Colombian author, Rafael Baena (1956-2105) during his lifetime. The presumptive indigenist character of the work, announced starting with the eponymic title, does not correspond with the barely reletive protagonism of the character Victoriano Lorenzo or to with other elements that problematize the vindication of a particular indigenous issue.
Keywords: Rafael Baena, La guerra perdida del indio Lorenzo, Colombian novel, Indians in literature, Literary indigenism
V. Lombardo Toledano, El problema del indio. Selección de textos de Marcela Lombardo, con una introducción de G. Aguirre Beltrán
Dehouve Danièle. V. Lombardo Toledano, El problema del indio. Selección de textos de Marcela Lombardo, con una introducción de G. Aguirre Beltrán. In: L'Homme, 1976, tome 16 n°1. pp. 168-169
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