gebhart/patrepeval huggingface dataset:
REALIDADES Y TIEMPOS. LA POESÍA Y EL APRENDIZAJE DE LA MULTIPLICIDAD (2010)

El texto recoge indicios de cómo la poesía nos ofrece un modo otro de participar de la realidad capaz de advertir y acoger su multiplicidad... Indicios de cómo este modo de participación es en el hombre una arriesgada actitud existencial fiel a la ausencia... indicios del movimiento de deslizamiento, horizontal e instantáneo, que lleva al otro lado al hombre inocente y extranjero... Indicios de cómo la palabra poética inventa una nueva posibilidad de vida; reinventa lo que nos puede, acontecer... Indicios de la lectura literal de ¡a realidad que a nuestro alrededor escribe... Indicios de un sin-lugar, de un espacio desprovisto del concepto- Indicios de un tiempo-otro, de un tiempo en un afuera no intemporal, de un tiempo que es el de la infancia del mundo en la aurora del lenguaje... Indicios.
The reduction of emitter-collector shorts in a high-speed all-implanted bipolar technology (1981)

One of the main yield limiting mechanisms in the fabrication of shallow-junction bipolar integrated circuits is emitter-to-collector ( <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">E-C</tex> ) leakage. This paper describes the progress made in reducing the <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">E-C</tex> leakage defect density in an all-implanted integrated circuit technology, which features emitters approximately 0.5 µm deep and bases approximately 0.3 µm wide. Tile median <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">E-C</tex> short density was reduced from approximately 2 × 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">4</sup> to approximately 200/cm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> of active emitter area in the course of this study. The processing changes that were adopted to reduce or eliminate the fatal defects include the use of both very low and very high temperature oxidation conditions to eliminate oxidation induced stacking faults (OSF's). A new epitaxial growth technique has reduced the slip dislocation density by more than an order of magnitude. The extended misfit dislocation arrays have been eliminated in both the collector contact and isolation diffusions by reducing the dopant concentrations in each region. Further, dislocation networks arising from buried layer and emitter regions, have been eliminated by limiting the oxygen concentration in their respective drive-in steps.
Mechanisms of Grignard Reactions. I. Addition to Acid Halides. Metallic Halides as Lewis Acids<sup>1</sup> (1954)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMechanisms of Grignard Reactions. I. Addition to Acid Halides. Metallic Halides as Lewis Acids1Robert T. Morrison and Marvin WishmanCite this: J. Am. Chem. Soc. 1954, 76, 4, 1059–1061Publication Date (Print):February 1, 1954Publication History Published online1 May 2002Published inissue 1 February 1954https://pubs.acs.org/doi/10.1021/ja01633a038https://doi.org/10.1021/ja01633a038research-articleACS PublicationsRequest reuse permissionsArticle Views792Altmetric-Citations9LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
具有樟脑基衍生物作为立体位阻&lt;italic&gt;&beta;&lt;/italic&gt;-二酮的环金属铂配合物: 一种有效降低分子间&pi;-&pi;相互作用和Pt-Pt相互作用的新途径 (2010)

A new series of mono-cyclometalated square planar platinum(II)complexes which have the general formula, ppyPt(O^O), where ppy is 2-phenylpyridyl, and O^O are <italic>β</italic>-diketonate ancillary ligands with acyl substituent group in 3 position of (D)-(+)-camphor, were synthesized and the single-crystal X-ray structures of complex 1 and 2 were determined. Although, like the many square-planar geometry of Pt(II) complexes, these complexes have plane stacking modes in crystal structure, the sterically bulky camphor-derived groups compel extensively slipping of the molecular stacking planes each other, resulting in the negligible overlapping of the aromatic ring fragments between molecules and the considerable Pt-Pt distance. The resolved spectra and a little shifted emissions in solid state of complexes also show that there is significant reducing of π-π interactions and Pt-Pt interactions and suggest these complexes can be as good candidates of the doped phosphorescent organic light emitting diodes (PhOLEDs)and even as candidates of the nondoped PhOLEDs.
Neurochemistry of aging. 1. Toxins for an animal mode of Alzheimer's disease (1986)

A chronic deficiency in central cholinergic function has been implicated in a number of neuropsychiatric diseases including Alzheimer's disease. Until recently, animal models that simulate the neurochemical conditions that appear to cause these diseases in humans, as a result of a direct manipulation of the central cholinergic system, were not available. Over the past few years, however, we have been successful in developing a cholinotoxin, 1-ethyl-1-(2-hydroxyethyl)aziridinium chloride (AF64A), which has the potential to serve as a novel compound in developing animal models of human brain disorders in which a cholinergic hypofunction has been implicated. In this paper are described the design, synthesis, and testing of several structural analogues of AF64A as potential cholinotoxins, by evaluating them for their ability to inhibit high-affinity choline transport and their affinity toward brain muscarinic receptors. One of the compounds, 1-cyclopropyl-1-(2-hydroxyethyl)aziridinium chloride (i.e. aziridine analogue of 13) was found to have a remarkably high affinity (about 40 times higher than AF64A) toward brain muscarinic receptors.
Occurrence and functional significance of secondary carbohydrate binding sites in glycoside hydrolases (2011)

Non-catalytic carbohydrate binding on independent carbohydrate-binding modules (CBMs) has been reported frequently for glycoside hydrolases (GHs) and reviewed thoroughly. However, various structural studies of GHs have revealed that non-catalytic carbohydrate binding sites can also occur on the surface of the structural unit comprising the active site. Here, the discovery of these sites, referred to as secondary binding sites (SBSs), and their putative roles in different GHs is reviewed for the first time. The majority of the SBSs have been discovered in starch-active enzymes, but there are also many reports of SBSs in various other enzymes. A wide variety of functions has been ascribed to these sites, including (1) targeting of the enzyme towards its substrate, (2) guiding the substrate into the active site groove, (3) substrate disruption, (4) enhancing processivity, (5) allosteric regulation, (6) passing on reaction products, and (7) anchoring to the cell wall of the parent microorganism. A lot of these putative functions are in agreement with the functions ascribed to non-catalytic binding in CBMs. Contrarily to CBMs, SBSs have a fixed position relative to the catalytic site, making them more or less suitable to take up specific functions.
Computer Vision Systems for Industrial Inspection and Assembly (1980)

Custom-designed computer vision systems are being applied to specific manufacturing tasks. Current development may lead to general-purpose systems for a broad range of industrial applications.
Eye-Model-Based Gaze Estimation by RGB-D Camera (2014)

This paper proposes a method of eye-model-based gaze estimation by RGB-D camera, Kinect sensor. Different from other methods, our method sets up a model to calibrate the eyeball center by gazing at a target in 3D space, not predefined. And then by detecting the pupil center, we can estimate the gaze direction. To achieve this algorithm, we first build a head model relying on Kinect sensor, then obtaining the 3D information of pupil center. As we need to know the eyeball center position in head model, we do a calibration by designing a target to gaze. Because the ray from eyeball center to target and the ray from eyeball center to pupil center should meet a relationship, we can have an equation to solve the real eyeball center position. After calibration, we can have a gaze estimation automatically at any time. Our method allows free head motion and it only needs a simple device, finally it also can run automatically in real-time. Experiments show that our method performs well and still has a room for improvement.
Growth Relationships of Leaves and Internodes in Viny Angiosperms with Different Modes of Attachment (1977)

The timing of leaf expansion in relation to the elongation of adjacent internodes was compared in 37 species of vines which climb by means of twining stems, tendrils, or roots. Interspecific comparisons were made with a growth index, L, defined as the fraction of the final length of a leaf when an adjacent internode reached 75 % of its final length. The index was calculated for both of the leaf positions adjacent to an internode: La for the leaf above the internode, Lb for the leaf below the internode. The value of L was low in many twiners and tendril climbers (La, Lb < 0.33 in 15 of 29 species). Four twiners formed scale leaves (La and Lb = 1.0) and in two climbers with leaf tip tendrills (Pisum, Gloriosa) the maturation of leaves was not delayed (La = 0.73, 0.94 respectively). In all five species (5/5) of monocotyledonous root climbers a leaf completed elongation together with, or before, one of the adjacent internodes. In 2/3 species of dicotyledonous root climbers the elongation of leaves was delayed in relation to both adjacent internodes, but the value of La was greater than in most twiners. The timing of adjacent internode elongation was evaluated using a second index, T, defined as the fraction of final length of an internode when the subjacent internode reached 75 % of its final length. Wide-ranging extremes were found among various species, from 0.70 in Asparagus to 0.05 in Anthurium. Root climbers exhibited generally lower T values than twiners or tendril climbers. These results are in agreement with the concept of earlier qualitative studies that the pattern of leaf and internode development in vines is related to their mode of attachment. Delayed leaf expansion has been considered important in the biology of twining and tendril climbing vines because large foliage leaves are thought to decrease the effectiveness of shoots “searching” for a support. The present study provides the first quantitative, comparative description of the timing of leaf growth in vines. The leaves of non-vines commonly mature together with, or before, the adjacent internodes.
Pathogenic mechanism of a human mitochondrial tRNA <sup>Phe</sup> mutation associated with myoclonic epilepsy with ragged red fibers syndrome (2007)

Human mitochondrial tRNA (hmt-tRNA) mutations are associated with a variety of diseases including mitochondrial myopathies, diabetes, encephalopathies, and deafness. Because the current understanding of the precise molecular mechanisms of these mutations is limited, there is no efficient method to treat their associated mitochondrial diseases. Here, we use a variety of known mutations in hmt-tRNA(Phe) to investigate the mechanisms that lead to malfunctions. We tested the impact of hmt-tRNA(Phe) mutations on aminoacylation, structure, and translation elongation-factor binding. The majority of the mutants were pleiotropic, exhibiting defects in aminoacylation, global structure, and elongation-factor binding. One notable exception was the G34A anticodon mutation of hmt-tRNA(Phe) (mitochondrial DNA mutation G611A), which is associated with MERRF (myoclonic epilepsy with ragged red fibers). In vitro, the G34A mutation decreases aminoacylation activity by 100-fold, but does not affect global folding or recognition by elongation factor. Furthermore, G34A hmt-tRNA(Phe) does not undergo adenosine-to-inosine (A-to-I) editing, ruling out miscoding as a possible mechanism for mitochondrial malfunction. To improve the aminoacylation state of the mutant tRNA, we modified the tRNA binding domain of the nucleus-encoded human mitochondrial phenylalanyl-tRNA synthetase, which aminoacylates hmt-tRNA(Phe) with cognate phenylalanine. This variant enzyme displayed significantly improved aminoacylation efficiency for the G34A mutant, suggesting a general strategy to treat certain classes of mitochondrial diseases by modification of the corresponding nuclear gene.
Modern Bacterial Taxonomy (1986)

Preface. Introduction. Classification. Deficiencies of traditional classifications. The range of classifications. Merits of phenetic versus phylogenetic classifications. The choice between phenetic and phylogenetic classifications. References. Numerical taxonomy. Introduction. Strain selection. Test selection. Data coding. Computer analyses. Determination of taxonomic structure. Presentation and interpretation of results. Concluding remarks. References. Chemosystematics and molecular biology I: Nucleic acid analyses. Introduction. Chromosomal DNA. Analysis of RNA. References. Chemosystematics and molecular biology II: Proteins, lipids, carbohydrates and whole cells. Analysis of proteins. Cell envelope analyses. End-products of metabolism. Complete cells. Conclusions. References. Phylogenetics. General considerations. Data for phylogeny. Phylogenies from macromolecular sequences. Tree reconstruction. Cladistics and phenetics. Constancy of evolutionary rates. Gene transfer. Bacterial evolution. References. Nomenclature. The species concept. References. Identification and diagnosis. Sequential identification systems: dichotomous keys. Simultaneous identification: diagnostic tables. Computer-based identification systems. Serology. Commerical kits. Bacteriophage typing. Chemosystematic methods in identification. Hybridization probes. References. Interactions between taxonomy and allied disciplines. Ecology. Pathology. Genetics and molecular biology. Biotechnology. Culture collections. References. Conclusions and outlook. Glossary. Appendix A: Classification of the bacteria - the conventional approach. Appendix B: Classification of the bacteria - the phylogenetic approach. Index.
A scalable sparse matrix-vector multiplication kernel for energy-efficient sparse-blas on FPGAs (2014)

Sparse Matrix-Vector Multiplication (SpMxV) is a widely used mathematical operation in many high-performance scientific and engineering applications. In recent years, tuned software libraries for multi-core microprocessors (CPUs) and graphics processing units (GPUs) have become the status quo for computing SpMxV. However, the computational throughput of these libraries for sparse matrices tends to be significantly lower than that of dense matrices, mostly due to the fact that the compression formats required to efficiently store sparse matrices mismatches traditional computing architectures. This paper describes an FPGA-based SpMxV kernel that is scalable to efficiently utilize the available memory bandwidth and computing resources. Benchmarking on a Virtex-5 SX95T FPGA demonstrates an average computational efficiency of 91.85%. The kernel achieves a peak computational efficiency of 99.8%, a >50x improvement over two Intel Core i7 processors (i7-2600 and i7-4770) and showing a >300x improvement over two NVIDA GPUs (GTX 660 and GTX Titan), when running the MKL and cuSPARSE sparse-BLAS libraries, respectively. In addition, the SpMxV FPGA kernel is able to achieve higher performance than its CPU and GPU counterparts, while using only 64 single-precision processing elements, with an overall 38-50x improvement in energy efficiency.
Inductorless DC-to-DC converter with high power density (1994)

A new type of switching-mode power supply containing no inductors or transformers is proposed. The controlled transfer of energy from a unregulated DC source to a regulated output voltage is realized through a switched-capacitor (SC) circuit. A duty-cycle control is used; the driving signals of the transistors in the SC circuit are determined by the feedback circuit. The absence of magnetic devices makes possible the realization of power converters of small size, low weight and high power density, able to be manufactured in IC technology. High efficiency, small output voltage ripple and good regulation for large changes in the input voltage and/or load values are other positive features of the new type of DC-to-DC power converter. The input-to-output voltage conversion ratio is flexible; the same converter structure can provide a large range of constant desired values of the output voltage for a given input voltage, by predetermining the steady-state conversion ratio. The frequency response shows good stability of the designed converter. The experimental results obtained by using a prototype of a step-down SC-based DC-to-DC converter confirmed the theoretical expectations and the computer simulation results.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Standard handbook of audio and radio engineering (2002)

Section 1: Principles of Sound and Hearing Section 2: The Audio Spectrum Section 3: Architectural Acoustic Principles and Design Techniques Section 4: Microphone Devices and Systems Section 5: Sound Reproduction Devices and Systems Section 6: Digital Coding of Audio Signals Section 7: Compression Technologies for Audio Section 8: Audio Networking Section 9: Audio Recording Systems Section 10: Production Standards, Equipment, and Facility Design Section 11: Broadcast Transmission Systems Section 12: Radio Receivers Section 13: Standards and Practices Section 14: Index Listings
Early-Onset Epilepsy and Postnatal Lethality Associated with an Editing-Deficient <i>GluR-B</i> Allele in Mice (1995)

The arginine residue at position 586 of the GluR-B subunit renders heteromeric alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionate (AMPA)-sensitive glutamate receptor channels impermeable to calcium. The codon for this arginine is introduced at the precursor messenger RNA (pre-mRNA) stage by site-selective adenosine editing of a glutamine codon. Heterozygous mice engineered by gene targeting to harbor an editing-incompetent GluR-B allele synthesized unedited GluR-B subunits and, in principal neurons and interneurons, expressed AMPA receptors with increased calcium permeability. These mice developed seizures and died by 3 weeks of age, showing that GluR-B pre-mRNA editing is essential for brain function.
Photonic Crystal Fiber (2010)

Abstract Reducing the complexity of opticalsystems emphasizes the need to increase the number of optical functions in as few modules as possible, making the system more compact and simple to operate. Optical functions such as light generation, frequency conversion, amplification, broadband transmission, wavelength filtering and interfacing to the outside environment typically needed separate, individual optical components to be chained together to comprise a system. However, with the advent of Photonic Crystal Fiber, many of these functions can be combined into multifunctional modules paving the way for simpler, turn‐key systems.
Neutrophils influence melanoma adhesion and migration under flow conditions (2003)

We have studied human melanoma cell (C8161) adhesion and migration in response to stimulation by soluble collagen IV (CIV) using a modified Boyden chamber. In this modified chamber, shear flow can be introduced over the cell-substrate interface, affecting tumor cell chemotactic migration through a microporous filter. A relatively high level of intercellular adhesion molecule-1 (ICAM-1) was found on C8161 cells. In contrast, levels of beta(2)-integrins (e.g., LFA-1 and Mac-1), the molecules that would be necessary for C8161 stable adhesion to the endothelium substrate, were found to be very low on these melanoma cells. As a result, C8161 transendothelial migration under a flow condition of 4 dyn/cm(2) decreased by 70% as compared to static migration. When human neutrophils (PMNs) were present in the tumor cell suspension, C8161 migration recovered by 85% over C8161 cells alone under the 4 dyn/cm(2) flow condition. Blocking ICAM-1 on C8161 cells or Mac-1 on PMNs significantly inhibited C8161-PMN adhesion and subsequent C8161 migration through the endothelium under flow conditions. In addition, increased interleukin-8 production and Mac-1 expression by PMNs were detected when they were co-cultured with C8161 melanoma cells. These results suggest that transmigration of C8161 cells under flow conditions can be influenced by PMNs, mediated by Mac-1/ICAM-1 adhesive interactions and enhanced by altered cytokine production.
Effect of metallisation on surface acoustic wavevelocity in GaN-on-sapphirestructures (2000)

Surface acoustic wave (SAW) velocities have been measured on the free and metallised surfaces of GaN layers grown by metal organic chemical vapour deposition on (0001) sapphire substrates. The measurements were performed using the acousto-optic diffraction technique in the frequency range 100 – 400 MHz for SAW propagation direction along the [112̄0] sapphire axis. The deposition of thin aluminium films on the GaN surface reduced the SAW velocity up to 1% as compared to that on the free surface of the GaN-on-sapphire structure. The level of reduction was found to increase linearly with the acoustic frequency and GaN layer thickness.
In the Name of Trauma: (2011)

Research Article| September 01 2011 In the Name of Trauma:Notes on Testimony, Truth Telling and the Secret of Literature in South Africa Rosalind C. Morris Rosalind C. Morris Columbia University Rosalind C. Morris is professor of anthropology at Columbia University, where she has taught since 1994. Her most recent books are Photographies East: The Camera and Its Histories in East and Southeast Asia and Can the Subaltern Speak: Reflections on the History of an Idea. She has written widely on questions of representation, translation, media, and modernity in the global south, particularly in South Africa and Southeast Asia. A collection of essays entitled Wars I Have (Not) Seen will be published by Seagull Books in 2012. Search for other works by this author on: This Site Google Comparative Literature Studies (2011) 48 (3): 388–416. https://doi.org/10.5325/complitstudies.48.3.0388 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Facebook Twitter LinkedIn Email Tools Icon Tools Permissions Cite Icon Cite Search Site Citation Rosalind C. Morris; In the Name of Trauma:Notes on Testimony, Truth Telling and the Secret of Literature in South Africa. Comparative Literature Studies 1 September 2011; 48 (3): 388–416. doi: https://doi.org/10.5325/complitstudies.48.3.0388 Download citation file: Zotero Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All Scholarly Publishing CollectivePenn State University PressComparative Literature Studies Search Advanced Search The text of this article is only available as a PDF. Copyright © 2011 by The Pennsylvania State University. All rights reserved.2011The Pennsylvania State University Article PDF first page preview Close Modal You do not currently have access to this content.