gebhart/patrepeval huggingface dataset:
In-situ timing monitoring methods for variation-resilient designs (2014)

With technology scaling, process, voltage, and temperature (PVT) variations pose great challenges on integrated circuit designs. Conventionally, LSI circuits are designed by adding pessimistic timing margin to guarantee "always correct" operations even under worst-case conditions. However, due to the increasing PVT variations, unacceptable larger design guard band should be reserved to avoid timing errors on critical paths of circuits, which will therefore lead to very inefficient designs in terms of power and performance. For this reason, in-situ timing monitoring technique has gained great research interest. In this paper, we will review existing variation-resilient design techniques with particular emphasis on in-situ timing monitoring techniques including both detection and prediction-based methods. The effectiveness of in-situ timing monitoring techniques will be discussed. Finally, we show an example of in-situ timing monitoring technique called STEP with applications to general pipeline designs.
An ontology for bioinformatics applications. (1999)

The TAMBIS system, which uses a subset of the TaO described here, is accessible over the Web via http://img.cs.man.ac.uk/tambis (although in the first instance, we will use a password mechanism to limit the load on our server). The complete model is also available on the Web at the above URL.
Stabilization of Planar Collective Motion: All-to-All Communication (2007)

This paper proposes a design methodology to stabilize isolated relative equilibria in a model of all-to-all coupled identical particles moving in the plane at unit speed. Isolated relative equilibria correspond to either parallel motion of all particles with fixed relative spacing or to circular motion of all particles with fixed relative phases. The stabilizing feedbacks derive from Lyapunov functions that prove exponential stability and suggest almost global convergence properties. The results of the paper provide a low-order parametric family of stabilizable collectives that offer a set of primitives for the design of higher-level tasks at the group level
A modified TLS-Prony method using data decimation (1994)

The paper introduces a modified TLS-Prony method that incorporates data decimation. The use of data decimation results in the reduction in the computational complexity because one high-order estimation is replaced by several low-order estimations. The authors present an analysis of pole variance statistics for this modified TLS-Prony method. This analysis provides a quantitative comparison of the parameter estimation accuracy as a function of decimation factors. The authors show that by using decimation, one can obtain comparable statistical performance results at a fraction of the computational cost, when compared with the conventional TLS-Prony algorithm.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
On the relationship between the protein structure and protein dynamics (2008)

Recently, we have developed a method (Shih et al., Proteins: Structure, Function, and Bioinformatics 2007;68: 34-38) to compute correlation of fluctuations of proteins. This method, referred to as the protein fixed-point (PFP) model, is based on the positional vectors of atoms issuing from the fixed point, which is the point of the least fluctuations in proteins. One corollary from this model is that atoms lying on the same shell centered at the fixed point will have the same thermal fluctuations. In practice, this model provides a convenient way to compute the average dynamical properties of proteins directly from the geometrical shapes of proteins without the need of any mechanical models, and hence no trajectory integration or sophisticated matrix operations are needed. As a result, it is more efficient than molecular dynamics simulation or normal mode analysis. Though in the previous study the PFP model has been successfully applied to a number of proteins of various folds, it is not clear to what extent this model will be applied. In this article, we have carried out the comprehensive analysis of the PFP model for a dataset comprising 972 high-resolution X-ray structures with pairwise sequence identity <or=25%. We found that in most cases the PFP model works well. However, in case of proteins comprising multiple domains, each domain should be treated separately as an independent dynamical module with its own fixed point; and in case of the protein complex comprising a number of subunits, if functioning as a biological unit, the whole complex should be considered as one single dynamical module with one fixed point. Under such considerations, the resultant correlation coefficient between the computed and the X-ray structural B-factors for the data set is 0.59 and 75% (727/972) of proteins with a correlation coefficient >or=0.5. Our result shows that the fixed-point model is indeed quite general and will be a useful tool for high throughput analysis of dynamical properties of proteins.
OPTIMAL TRIGGERING OF AN AIRBAG (1993)

This paper describes how to determine the optimal triggering timing of an airbag and presents a new and straightforward algorithm based upon the concept of prediction. The optimal timing is determined by estimating and predicting the motion of the occupant after collision by using a model of the occupant. The authors introduce the one-mass model to describe the occupant's motion after collision. Observation of the motion of the occupant rather than the crashing automobile makes the problem straightforward.
Synthesis and infrared properties of ethylenedioxythiophene and octylthiophene based copolymers (1998)

The control of the structural parameters and doping conditions of PATs lead to quasi-metallic materials. We have developed the synthesis of copolymers and PAT to enhance the metallic properties with conservation of the solubility.
An Instrument for the Direct Measurement of Intense Thermal Radiation (1953)

A new type of radiometer is described that is suitable for the measurement of the intensity of thermal radiation in the range of 1–100 cal/cm2 sec. The instrument is a simple one. It produces an emf directly proportional to intensity and can be made to have a time-constant of the order of 0.001 sec. Equations are derived to predict the performance of the instrument, and their results are compared with experimental data obtained from three prototypes.
Effects of External Silicon Dioxide and Surface Roughness on the Radiative Melting of Silicon (1987)

Radiative melting of silicon surfaces on one side, with an incandescent source is examined as a function of external silicon dioxide film thickness and surface topography. Surface emissivities incorporating these variables are related to silicon melt depth by employing an optical cavity model. Experimental agreement with the model is good, demonstrating that careful consideration of film thickness, surface topography, and spectral output of incident radiation is required in order to optimally control silicon melt depths. Melt depth is profoundly influenced by surface emissivities which are shown to be, themselves, functions of external oxide thickness and surface topography. Not only do sharp differences exist between the optical properties of polished and sandblasted surfaces, but the data demonstrate that differences in the "degree" of sandblasting can also result in markedly different melt profiles. Furthermore, since radiative heating is from one side, while radiative cooling occurs from all sides, specific preparations of irradiated surfaces resulting in enhanced incident energy coupling, and increased melt depths, have an opposite effect when applied to nonirradiated surfaces. This allows for controlling melt profiles of irradiated surfaces of silicon wafers by patterning the nonirradiated side—an approach which could have application when patterning of irradiated surfaces is precluded or less desirable. We find that silicon melt depth displays a gross functional dependence on external silicon dioxide film thickness, and that an oscillatory finely‐structured dependence exists when film thicknesses are varied on the irradiated side of silicon wafers.
The Effects of Cosmopolitanism on Consumer Ethnocentrism, Brand Origin Identification and Foreign Product Purchases (2013)

Current research paper examines cosmopolitanism as a factor underlying consumer decisions to purchase foreign rather than domestic products in three categories of products: alcohol, clothes and furniture. In conceptual model two other theoretical constructs for measuring foreign product purchases are included. These are consumer ethnocentrism and brand origin identification. The measurement model is examined using a data set of 271 and 261 adult consumers inEstoniaandSlovenia. Data is tested via structural equation modeling. The study results confirm the strong and direct effect of consumer cosmopolitanism in foreign product purchases and brand origin identification is confirmed as a mediating variable between consumer ethnocentrism and foreign product purchases. On the other hand, direct relationship between cosmopolitanism and brand origin identification is not supported by conducted study.
Electro‐Induced Mechanical and Thermal Responses of Carbon Nanotube Fibers (2014)

The electromechanical and electrothermal responses of carbon nanotube fibers provide new ways to use energy conversion, including the modulation of assembly structures by alternative densification and relaxation. The most efficient way to strengthen the tensile strength up to 2.32-2.50 GPa is shown as well as a microscale, nanotube-based Chinese calligraphy brush.
Global impact of mature biofilm lifestyle on <i>Escherichia coli</i> K‐12 gene expression (2003)

The formation of biofilm results in a major lifestyle switch that is thought to affect the expression of multiple genes and operons. We used DNA arrays to study the global effect of biofilm formation on gene expression in mature Escherichia coli K-12 biofilm. We show that, when biofilm is compared with the exponential growth phase, 1.9% of the genes showed a consistent up- or downregulation by a factor greater than two, and that 10% of the E. coli genome is significantly differentially expressed. The functions of the genes induced in these conditions correspond to stress response as well as energy production, envelope biogenesis and unknown functions. We provide evidence that the expression of stress envelope response genes, such as the psp operon or elements of the cpx and rpoE pathways, is a general feature of E. coli mature biofilms. We also compared biofilm with the stationary growth phase and showed that the biofilm lifestyle, although sharing similarities with the stationary growth phase, triggers the expression of specific sets of genes. Using gene disruption of 54 of the most biofilm-induced genes followed by a detailed phenotypic study, we validated the biological relevance of our analysis and showed that 20 of these genes are required for the formation of mature biofilm. This group includes 11 genes of previously unknown function. These results constitute a comprehensive analysis of the global transcriptional response triggered in mature E. coli biofilms and provide insights into its physiological signature.
Correction - "Fracture of Non-Newtonian Fluids at High Shear Stresses" (1959)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCorrection - "Fracture of Non-Newtonian Fluids at High Shear Stresses"A. B. MetznerCite this: Ind. Eng. Chem. 1959, 51, 2, 225Publication Date (Print):February 1, 1959Publication History Published online26 September 2005Published inissue 1 February 1959https://pubs.acs.org/doi/10.1021/ie50590a600https://doi.org/10.1021/ie50590a600research-articleACS PublicationsRequest reuse permissionsArticle Views11Altmetric-Citations-LEARN 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 options Get e-Alerts
Quel droit pour l'œuvre à l'ère de la copie numérique ? (2000)

Forest David. Quel droit pour l'œuvre à l'ère de la copie numérique ?. In: Quaderni, n°41, Été 2000. Utopie II : les territoires de l'utopie. pp. 17-26.
Rendered path (2007)

Sensor positioning is a crucial part of many location-dependent applications that utilize wireless sensor networks (WSNs). Current localization approaches can be divided into two groups: range-based and range-free. Due to the high costs and critical as-sumptions, the range-based schemes are often impractical for WSNs. The existing range-free schemes, on the other hand, suffer from poor accuracy and low scalability. Without the help of a large number of uniformly deployed seed nodes, those schemes fail in anisotropic WSNs with possible holes. To address this issue, we propose the Rendered Path (REP) protocol. To the best of our knowledge, REP is the only range-free protocol for locating sen-sors with constant number of seeds in anisotropic sensor net-works.
SCOTfluors: Small, Conjugatable, Orthogonal, and Tunable Fluorophores for In Vivo Imaging of Cell Metabolism (2019)

The transport and trafficking of metabolites are critical for the correct functioning of live cells. However, in situ metabolic imaging studies are hampered by the lack of fluorescent chemical structures that allow direct monitoring of small metabolites under physiological conditions with high spatial and temporal resolution. Herein, we describe SCOTfluors as novel small-sized multi-colored fluorophores for real-time tracking of essential metabolites in live cells and in vivo and for the acquisition of metabolic profiles from human cancer cells of variable origin.
Object saliency using a background prior (2016)

What makes an object salient? Almost all the works so far determine object saliency based on the amount of the contrast of a patch or super pixel with it's surrounding. Due to this approach, objects consisting of multiple colors, which is usually the case with a majority of natural objects, are allocated varying saliency values. Hence, post-processing for it's application is another problem. Taking note of this and keeping in mind the ease of extension to different applications, we provide a new perspective to this problem. We propose a simple yet powerful method for modelling the background for salient object detection. As a corollary of "Rule of Thirds" we model the background as the most occurring super pixels lying along the image border. Saliency is determined based on the distance of other super pixels from the background super pixels. Comparison of the proposed approach with the state of the art shows how our approach can provide more consistent saliency values throughout an object.
Prostaglandin I <sub>2</sub> Contributes to the Vasodepressor Effect of Baicalein in Hypertensive Rats (1998)

Lipoxygenase inhibitors reduce blood pressure in hypertensive rats. The vasodepressor effect of lipoxygenase inhibitors may be related to increased production of prostaglandin (PG) I2 since lipoxygenase-derived fatty acid hydroperoxides inhibit PGI2 synthase. This hypothesis was examined in rats made hypertensive by infusion of angiotensin II (200 ng/min i.p.) for 12 to 14 days. In hypertensive but not in normotensive rats, the lipoxygenase inhibitor baicalein (60 mg/kg s.c.) increased (P<.05) the conversion of exogenous PGH2 to PGI2 by aortic segments, the release of 6-keto-PGF1alpha by aortic rings, the concentration of 6-keto-PGF1alpha in blood, and the renal excretion of 6-keto-PGF1alpha. Treatment with baicalein did not affect the blood pressure of normotensive rats but decreased the blood pressure of hypertensive rats from 177+/-8 to 133+/-9 mm Hg after 120 minutes (P<.05). Also, the lipoxygenase inhibitor cinnamyl-3,4-dihydroxy-alpha-cyanocinnamate (8 mg/kg s.c.) was without effect on the blood pressure of normotensive rats but decreased the blood pressure of hypertensive rats from 182+/-4 to 139+/-8 mm Hg (P<.05). However, the blood pressure of hypertensive rats pretreated with indomethacin (5 mg/kg i.v.) was affected by neither baicalein nor cinnamyl-3,4-dihydroxy-alpha-cyanocinnamate. Moreover, in hypertensive rats in which baicalein had decreased blood pressure to 148+/-6 mm Hg, the administration of rabbit serum containing antibodies against 5,6-dihydro-PGI2 (0.3 mL i.v.) partially reversed the response to baicalein, increasing blood pressure to 179+/-7 mm Hg within 20 minutes (P<.05). The antibodies also were shown to block the vasodepressor effect of PGI2 but not of PGE2. Collectively, these data suggest contribution of PGI2 to the acute antihypertensive effect of baicalein in rats with angiotensin II-induced hypertension.
Distribution of monomer configurations in polypropylene as determined with <sup>13</sup>C NMR (1974)

Abstract An amorphous polypropylene sample was examined by using 13 C NMR at 25.2 MHz and all ten possible methyl resonances from monomer pentads were observed. Assignments were made through a consideration of an additivity relationship among the methyl resonances. Confirmation for the assignments was obtained through observed conformity of the methyl resonance intensity distribution with second‐order Markov statistics. The relative intensity distribution of the methyl resonances can be used to characterize the structure of polypropylenes with confidence, since experimentally it is shown that an equal nuclear Overhauser effect exists for each of the methyl resonances.
Fundamental mechanisms of host immune responses to infection (2006)

Chronic inflammatory periodontal disease is caused by host immune responses to periodontal microorganisms. Although periodontal disease seems to progress locally in the oral cavity, the actual immune responses proceed at two sites, one being the local area peripheral to the periodontium, and the other being in secondary lymphoid tissues, such as lymph nodes and the spleen. To investigate the pathogenesis of periodontal diseases, it is essential to understand exactly how the immune system works against microbial infections. The past decade has produced remarkable advances in our understanding of host immune responses. This review highlights two of these developments: cross-talk between innate and adaptive immunity mediated by dendritic cells via toll-like receptors; and antigen-specific immune regulation by dendritic cells and T cells.
Isolation and Identification of Methylcitrate, a Major Metabolic Product of Propionate in Patients with Propionic Acidemia (1972)

Abstract The metabolic products of propionate metabolism in man were studied by determining the pattern of isotope in the urine following the intravenous injection of [1-14C]propionate. A major peak of radioactivity not present in control subjects was found in an organic acid in two patients with propionic acidemia and a patient with methylmalonic acidemia. This labeled compound was characterized as methylcitrate. Methylcitrate excretion was appreciable in patients with defective propionic acid metabolism and could be detected without administration of isotope. Methylcitrate is considered to be formed from the condensation of propionyl-CoA and oxalacetate. It could be involved in the pathogenesis of the clinical manifestations of these conditions.
The biologic half‐life of heparin (1979)

Half-lives (t1/2s) varying from 23 min to 2.48 hr have been reported for heparin. It is shown that much of the discrepancy between authors can be attributed to methods used to analyze data. It is suggested that three terms should be carefully used, the t1/2 of bioassayed heparin concentration, the t1/2 of the extension of the clotting time, and the t 1/2 of the clotting time to differentiate among the various methods of analyzing the raw data.
Efficiency of enhanced oil recovery using polymer-augmented low salinity flooding (2017)

Oil recovery from heavy oil resources has always been a challenging task. This work is aimed at investigating the recovery efficiency of polymer-augmented low salinity waterflooding in heavy oil reservoirs. The main recovery mechanism behind low salinity waterflooding is wettability alteration to more water-wet state. On the other hand, polymer flooding is performed to control fluids mobility and hence improve displacement efficiency. Combining both recovery methods is expected to add to recovery efficiency obtained by individual methods, and the aim of this work is to explore this experimentally. In this study, several laboratory experiments were conducted using Berea and Bentheimer sandstone cores starting with base runs of continuous secondary seawater and tertiary twice and 10 times diluted seawaterflooding (low salinity). Significant incremental oil recovery was obtained when flooded with low salinity water, and 10 times diluted seawater was determined to be used as low salinity water. Contact angle and Zeta potential measurements indicate wettability alteration due to clay detachment as the main recovery mechanism. Synergy of water secondary flooding and polymer tertiary flooding at different water salinity levels proved the efficiency of hybrid low salinity polymer flooding process in Berea sandstone. Low water salinity during secondary injection mode played a major role on ultimate recovery with less contribution to tertiary polymer slug injection. High salinity waterflooding provided lower secondary recovery leaving more residual oil for polymer slug to act on at that cycle. Smaller polymer slug of 0.1 pore volume was found to be sufficient in tertiary flooding with low salinity water but with slightly slower recovery rate. Bentheimer sandstones known for its low clay content were subjected to polymer-augmented waterflooding at high and low salinity levels. Close secondary and tertiary recoveries were obtained for the two salinity levels with slower recovery rate for low salinity run. Minute clay content and water-wet characteristic as determined by contact angle measurements may explain the lack of water salinity effect on recovery. The lack of salinity role and the two shock fronts with connate water bank in between known to exist during low salinity flooding may explain the slower recovery rate encountered. Comparison of both sandstones indicates that less ultimate recovery from Berea rocks, and this can be attributed to their initial intermediate wet state in contrast to the water-wet Bentheimer sandstone rocks.