gebhart/patrepeval huggingface dataset:
Evidence of the Thermo-Electric Thomson Effect and Influence on the Program Conditions and Cell Optimization in Phase-Change Memory Cells (2007)

We present physical and electrical evidence of the Thomson thermo-electric effect in line-type phase-change memory cells. This causes a shift of the molten zone during RESET programming towards the anode contact, and as a consequence the phase change material (PCM) design at the contact area has a significant influence on the program conditions. First statistical studies showed a reduction of minimum Reset currents by 5% and Set voltages by 28% when PCM extensions around the anode are used instead of fine line contacts. This Thomson effect remains important with further cell scaling.
Recycling Subspace Information for Diffuse Optical Tomography (2006)

We discuss the efficient solution of a long sequence of slowly varying linear systems arising in computations for diffuse optical tomographic imaging. The reconstruction of three-dimensional absorption and scattering information by matching computed solutions from a parameterized model to measured data leads to a nonlinear least squares problem that we solve using the Gauss--Newton method with a line search. This algorithm requires the solution of a long sequence of linear systems. Each choice of parameters in the nonlinear least squares algorithm results in a different matrix describing the optical properties of the medium. These matrices change slowly from one step to the next, but may change significantly over many steps. For each matrix we must solve a set of linear systems with multiple shifts and multiple right-hand sides. For this problem, we derive strategies for recycling Krylov subspace information that exploit properties of the application and the nonlinear optimization algorithm to significantly reduce the total number of iterations over all linear systems. Furthermore, we introduce variants of GCRO that exploit symmetry and that allow simultaneous solution of multiple shifted systems using a single Krylov subspace in combination with recycling. Although we focus on a particular application and optimization algorithm, our approach is applicable generally to problems where sequences of linear systems must be solved. This may guide other researchers to exploit the opportunities of tunable solvers. We provide results for two sets of numerical experiments to demonstrate the effectiveness of the resulting method.
99 deduplication problems (2016)

Deduplication is a widely studied capacity optimization technique that replaces redundant regions of data with references. Not only is deduplication an ongoing area of academic research, numerous vendors have deduplicated storage products. Historically, most deduplication-related publications focus on a narrow range of topics: maximizing deduplication ratios and read/write performance. While future research will continue to optimize these areas, we believe that there are numerous novel, deduplication-specific problems that have been largely ignored in the academic community. Based on feedback from customers as well as internal architecture discussions, we present new deduplication problems that will hopefully spur the next generation of research.
A DC-to-12.5 Gb/s 9.76 mW/Gb/s All-Rate CDR With a Single <italic>LC</italic> VCO in 90 nm CMOS (2017)

A dual-lane DC-to-12.5 Gb/s all-rate clock and data recovery (CDR) IC with a single LC voltage-controlled oscillator is fabricated in a 90 nm CMOS. An all-rate clock divider with an asynchronous phase calibration scheme is employed to generate all-rate clock signals without a phase mismatch or duty cycle distortion. The IC features an automatic loop gain control scheme that adjusts the bandwidth of a CDR in the background for optimal bit error rate (BER) performance by monitoring the phase difference between the incoming data and the recovered clock signal. The proposed CDR consumes 244 mW at 12.5 Gb/s under dual-lane operation with an input sensitivity of 12 mVpp,diff. The CDR supports referenceless allrate operation with a BER <; 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-12</sup> on PRBS31 and compensates for 20 dB of channel loss using a continuous-time linear equalizer (CTLE), a one-tap decision feedback equalizer (DFE), and a three-tap pre-emphasis filter. The power efficiency of the test chip is 9.76 mW/Gb/s.
THE MEDITERRANEAN CABLES (2012)

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Interaction of phencyclidine ("angel dust") with a specific receptor in rat brain membranes. (1979)

[3H]Phencyclidine binds to synaptic membranes from rat brain in a saturable, reversible, and selective fashion, with a dissociation constant Kd of 0.25 microM and a maximal binding capacity of 2.4 pmol/mg of membrane protein--i.e., 250 pmol/g of brain. The binding activity is concentrated in synaptosomal fractions, is higher in cerebral cortex and corpus striatum than in other parts of the rat brain, and is not detectable in the spinal cord. Only molecules of the phencyclidine series and ketamine are able to bind to the phencyclidine receptor. [3H]Phencyclidine bound to its receptor is not displaced by the classical neurotransmitters or neuromodulators. There is a good correlation between the apparent affinities of a series of phencyclidine analogs for the phencyclidine receptor and the pharacological activities of these analogs as measured by the rotarod assay.
ISOLATION OF A GLYCEROL-UTILIZING MUTANT OF <i>NICOTIANA TABACUM</i> (1978)

Although normal tobacco cell cultures cannot grow on glycerol as the sole carbon source, a spontaneous mutant cell line capable of utilizing glycerol has been isolated. Plants have been regenerated from this mutant cell line, and the results of preliminary genetic analyses are reported. The mutation appears to be specific for glycerol in that it does not alter the capability for callus growth on several other sugars tested.
<title>Scanning near-field optical microscope with a superfluorescent source</title> (1999)

A superfluorescent source used for scanning near-field optical microscope (SNOM) has been developed in this paper. The superfluorescent source originates from an amplified spontaneous emission (ASE) produced by an Er-doped fiber, with a relatively wide spectrum from 1531 nm to 1537 nm. This kind of superfluorescent fiber probe has relatively high photon flux over an ordinary probe. Different image qualities are obtained by the SNOM system with the superfluorescent source and the laser source respectively. Experimental result shows that the coherent noise of the SNOM image is dramatically reduced with the superfluorescent source.
Real-Time Fracture Mapping from the "Live" Treatment Well (2001)

Abstract The recent and dramatic increase in direct fracture mapping has profoundly altered our understanding of how fractures really do grow. New fracture-mapping technologies have allowed us to often directly measure what we could previously only model or assume. However, perhaps the greatest limitation of these new direct fracture-mapping technologies (tilt and microseismic) is the need for a nearby offset well in which to deploy instruments. In many environments, most notably offshore, there is often no feasible way to employ an offset observation well. Treatment well tilt mapping uses the fracture (injection) well itself as the "observation" well. The goal, quite simply, is to expand the range of environments where direct fracture mapping can be performed. The concept is simple: if fracture-induced deformation can be measured thousands of feet away at the surface or in offset wells, then it most certainly can be measured in the fracture well itself. The measurement of fracture-induced tilt versus time and depth (via an array of 4 to 20 tiltmeters) can allow robust real-time mapping of fracture height and width. Fracture length is then "modeled" based on observed height and width, and inferred fracture fluid efficiency. Treatment well tilt measurements can also provide direct measurement of mechanical fracture closure aiding, among other things, the estimation of formation closure stress. Mapping from the treatment well brings its own set of limitations and challenges. One is conducting minute wellbore movement measurements in the midst of a highvelocity flow stream. We have solved this challenge. Field data shows that the fracture-induced tilt signals in the treatment well are several orders of magnitude higher than those measured in offset wells, and they are much greater than the fluid-motion noise. The trickier challenge is deploying tools in a well during the pumping of proppant. So far we have performed real-time treatment well mapping only on fractures with clean fluid (i.e., no proppant), however, efforts are underway to overcome the difficulties with proppant. This paper provides an overview of the basic concepts, shows some real-data from treatment well applications, and presents one brief case study.
Neighborhoods are good communities (2011)

The communities of a social network are sets of vertices with more connections inside the set than outside. We theoretically demonstrate that two commonly observed properties of social networks, heavy-tailed degree distributions and large clustering coefficients, imply the existence of vertex neighborhoods (also known as egonets) that are themselves good communities. We evaluate these neighborhood communities on a range of graphs. What we find is that the neighborhood communities often exhibit conductance scores that are as good as the Fiedler cut. Also, the conductance of neighborhood communities shows similar behavior as the network community profile computed with a personalized PageRank community detection method. The latter requires sweeping over a great many starting vertices, which can be expensive. By using a small and easy-to-compute set of neighborhood communities as seeds for these PageRank communities, however, we find communities that precisely capture the behavior of the network community profile when seeded everywhere in the graph, and at a significant reduction in total work.
Mitochondrial diseases represent a risk factor for valproate‐induced fulminant liver failure (2000)

We report on 3 siblings (2 females and 1 male) with chronic progressive external ophthalmoplegia (CPEO), compatible with inherited mitochondrial cytopathy. The younger of the two sisters died at the age of 37 due to progressive respiratory failure. The older one presented with a status epilepticus at the age of 39 and was treated with valproate. Five months after the start of treatment, she developed fulminant liver failure and died. The brother has suffered from CPEO since early childhood but has had so far no other symptoms of a mitochondrial disease. A muscle biopsy from the younger sister revealed ragged-red fibers and decreased activities of complex I and IV of the respiratory chain but no pathogenic mutations in the mitochondrial tRNA genes or in several locations in the coding region of the mitochondrial genome. In the older sister's liver (obtained post-mortem), mitochondrial DNA was fragmented and could not be investigated. The clinical presentation and the biochemical findings suggest that all 3 siblings suffered from a mitochondrial cytopathy. Since mitochondrial cytopathies and valproate-induced fulminant liver failure are both rare events, an association between them is likely. Mitochondrial diseases should therefore be considered as a risk factor for valproate-induced liver failure and be excluded before treatment with valproate.
Automatic Mixing and Tracking of On-Pitch Football Action for Television Broadcasts (2011)

For the television broadcast of football in Europe, the sound engineer will typically have an arrangement of 12 shotgun microphones around the pitch to pick up on-pitch sounds such as whistle blows, players talking and ball kicks etc. Typically, during a match, the sound engineer will increase and decrease the levels of these microphones manually in accordance with where the action is on the pitch at a given time to prevent the final mix being awash with crowd noise. As part of the EU funded project, FascinatE, we have developed an automatic mixing algorithm that intelligently seeks key events on the pitch and turns on the corresponding microphones, the algorithm picks out the key events and automatically tracks the action eliminating the need for manual tracking. 1.
Microbial degradation and detoxification of high molecular weight polycyclic aromatic hydrocarbons by Stenotrophomonas maltophilia strain VUN 10,003 (2000)

The ability of Stenotrophomonas maltophilia strain VUN 10,003 to degrade and detoxify high molecular weight polycyclic aromatic hydrocarbons (PAHs) was evaluated in a basal liquid medium. Using high cell density inocula of strain VUN 10,003, the concentration of pyrene, fluoranthene, benz[a]anthracene, benzo[a]pyrene, dibenz[a, h]anthracene and coronene decreased by 98, 45, 26, 22, 22 and 55% over periods ranging from 5 to 42 d. When a PAH mixture containing three- to seven-ring compounds was used, degradation of both low and high molecular weight compounds occurred concurrently. Mutagenicity assays (Ames Test) demonstrated a decrease in the mutagenic potential of dichloromethane culture extracts from all cultures containing single PAH over the incubation period, corresponding to the decrease in the concentration of the PAH. These observations indicate that strain VUN 10,003 could be used for the detoxification of PAH-contaminated wastes.
Neurophysiological workload assessment in flight (2008)

Over the past few years, we developed a neurocognitive assessment system called the cognitive avionics tool set (CATS). This system has been used in fixed and rotary wing aircraft and in automobiles to assess operator workload using physiological and neurocognitive markers. Sensors that we used in the past include dense array electroencephalogram (EEG), electrocardiogram (ECG), galvanic skin response (GSR), pulse oximetry (sPO2), respiration (amplitude and frequency), and non-contact measures such as facial feature point location, facial temperature differences, and eye tracking. We recently integrated a new sensor called the PhotrodeTM manufactured by SRICO. The Photrode is an optical device that detects electrical fields. The device operates by sending a beam of light through a Mach-Zehnder Interferometer (MZI). An electric field modulates the light in a way that can be detected by an optical receiver. Because bio-electrical fields travel through clothing, the Photrode can detect ECG activity remotely, eliminating the need for wires being directly attached to the individual. The Photrode is capable of detecting EEG activity remotely through clothing. This paper provides an overview of CATS.
Complete Amino Acid Sequence of Luffin-a, a Ribosome-inactivating Protein from the Seeds of Sponge Gourd (<i>Luffa cylindrica</i>) (1990)

The complete amino acid sequence of luffin-a has been determined. Twenty-two peptides were isolated from the tryptic digest of luffin-a and sequenced employing the DABITC/PITC double coupling method. Overlaping of these peptides was achieved by analyzing the chymotryptic peptides or CNBr-fragments of luffin-a and their S. aureus V8 protease peptides. Luffin-a consists of 248 amino acid residues and its relative molecular mass is calculated to be 27,021 Da, excluding the attached sugar chains reasoned to be present at each Asn residue of positions 28, 33, 77, 84, 206, and 227. A comparison with the sequence of ricin A-chain showed 33% sequence identity indicating that these proteins are homologous.
Metabolism of carcinogenic heterocyclic and aromatic amines by recombinant human cytochrome P450 enzymes (1997)

The N-hydroxylation of carcinogenic arylamines represents an initial step in their metabolic activation. Animal studies have shown that this reaction is catalyzed by the cytochrome P450 (P450) enzymes P450 1A1 and P450 1A2. In this study, utilizing enzymes expressed in Escherichia coli (and purified) or in human B-lymphoblastoid cells, the catalytic activities of recombinant human P450 1A1, P450 1A2, and P450 3A4 for N-hydroxylation of several carcinogenic arylamines were determined. P450 1A2 from both expression systems catalyzed the N-hydroxylation of 4-aminobiphenyl and the heterocyclic amines, 2-amino-3-methylimidazo[4,5-f/quinoline (IQ), 2-amino-3,8-dimethylimidazo[4,5-f]quinoxaline (MeIQx), and 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP). Rates were similar, with values of 1.1-7.8 nmol/min/nmol P450. In contrast, P450 1A1 catalyzed N-hydroxylation of only PhIP, and no activity was observed with P450 3A4. Further kinetic analysis with purified P450 1A2 showed similar Km and Vmax values for N-hydroxylation of the arylamines. Furafylline and fluvoxamine, inhibitors of P450 1A2 activity in human liver microsomes, were found to be inhibitory of the recombinant P450 1A2 N-hydroxylation activity. Results from this study are supportive of a major role for human P450 1A2 in the metabolic activation of arylamines.
The Chemistry of Protons in Ambient-Temperature Ionic Liquids: Solubility and Electrochemical Profiles of HCl in HCl:ImCl:AlCl3 Ionic Liquids as a Function of Pressure (295 K) (1995)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Chemistry of Protons in Ambient-Temperature Ionic Liquids: Solubility and Electrochemical Profiles of HCl in HCl:ImCl:AlCl3 Ionic Liquids as a Function of Pressure (295 K)John L. E. Campbell and Keith E. JohnsonCite this: J. Am. Chem. Soc. 1995, 117, 29, 7791–7800Publication Date (Print):July 1, 1995Publication History Published online1 May 2002Published inissue 1 July 1995https://pubs.acs.org/doi/10.1021/ja00134a026https://doi.org/10.1021/ja00134a026research-articleACS PublicationsRequest reuse permissionsArticle Views749Altmetric-Citations44LEARN 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-AlertscloseSupporting Info (2)»Supporting Information Supporting Information Get e-Alerts
Ethnographic study of incidence and severity of intravenous drug errors (2003)

The rate of intravenous drug errors was high. Although most errors would cause only short term adverse effects, a few could have been serious. A combination of reducing the amount of preparation on the ward, training, and technology to administer slow bolus doses would probably have the greatest effect on error rates.
Real-time avionics in Ada 83 (1995)

Article Free Access Share on Real-time avionics in Ada 83 Author: Don K. Silvasi-Patchin Systems Software Specialist, Lockheed Martin Engineering and Sciences, Houston, TX and Lockheed Martin Tactical Aircraft Systems, Fort Worth, TX Systems Software Specialist, Lockheed Martin Engineering and Sciences, Houston, TX and Lockheed Martin Tactical Aircraft Systems, Fort Worth, TXView Profile Authors Info & Claims TRI-Ada '95: Proceedings of the conference on TRI-Ada '95: Ada's role in global markets: solutions for a changing complex worldNovember 1995 Pages 118–126https://doi.org/10.1145/376503.376548Published:01 November 1995Publication History 1citation142DownloadsMetricsTotal Citations1Total Downloads142Last 12 Months2Last 6 weeks1 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my AlertsNew Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteeReaderPDF
<i>Coupe</i><i>d</i><i>u Roi</i>Bisection of Proteins. Spontaneous Tetramerization of Two Peptides That Span the Sequence of the Rabbit Uteroglobin Monomer (2005)

The study of dividing objects into isometric segments has yielded novel approaches to the synthesis of high-symmetry organic compounds. Reported herein is the first application of this concept to a protein, rabbit uteroglobin (UG). Bisection of UG into two identical homochiral segments led to the design of the heterodimeric 70mer peptide alpha(1,2)-S-S-alpha(3,4) that spans the sequence of the native UG monomer. The ability of this compound to form a globular 140mer tetramer consisting of two noncovalently bound heterodimers was assessed by ultracentrifugation at sedimentation equilibrium and by fluorescent spectroscopy. On the other hand, the monomeric peptides alpha(1,2)-SH and alpha(3,4)-SH were shown to selectively form the alpha(1,2)-S-S-alpha(3,4) heterodimer via spontaneous air oxidation in phosphate buffer at neutral pH.
Exploratory Study for the Upgrading of Transport Properties of Heavy Oil by Slurry-Phase Hydrocracking (2014)

The partial hydrocracking of a crude oil of 13° American Petroleum Institute (API) gravity and viscosity of 6100 cSt at 37.8 °C was carried out in a batch reactor using a dispersed catalyst. The operating conditions were varied in the following ranges: hydrogen pressure of 40–100 kg/cm2, temperature of 360–400 °C, and reaction time of 3–5 h. Molybdenum trioxide of analytical grade was employed as a dispersed catalyst, and its concentration was modified from 0 to 2 wt %. The obtained results showed that the most favorable reaction conditions to obtain an upgraded crude oil with the required specifications for transportation by pipeline are 40 kg/cm2, 380 °C, 4 h of reaction, and a catalyst concentration of 0.75 wt %. At these operation conditions, no coke formation was observed.
A 256X256 CMOS BRIGHTNESS ADAPTIVE IMAGING ARRAY WITH COLUMN-PARALLEL DIGITAL OUTPUT (1998)

This paper describes a television camera chip which is suitable for intelligent transportation systems (ITS) applications such as adaptive cruise control and traffic monitoring. A technique is described which increases the dynamic range of the image sensor. This method does not require any further components beyond those that are normally presented in a standard active pixel sensor array.
Microsoft Excel 4 Companion (1992)

Completely updated for Excel 4.0, this book provides tutorials, examples and pragmatic advice on using virtually every feature of Microsoft Excel for the Macintosh version 4.0. The organizational structure of the previous editions will be maintained featuring information on using Excel's worksheets, charts, databases and macros, with step-by-step tutorials and many screen illustrations appropriate for the novice or the advanced user.