gebhart/patrepeval huggingface dataset:
Flexible and Executable Hardware/Software Interface Modeling for Multiprocessor SoC Design Using SystemC (2007)

At high abstraction level, multi-processor system-on-chip (SoC) designs are specified as assembling of IP's which can be hardware or software. The refinement of communication between these different IP's, known as hardware/software interfaces, is widely seen as the design bottleneck due to their complexity. In order to perform early design validation and architecture exploration, flexible executable models of these interfaces are needed at different abstraction levels. In this paper, we define a unified methodology to implement executable models of the hardware/software interface based on SystemC. The proposed formalism based on the concept of services gives to this approach the flexibility needed for architecture exploration and the ability to be used in automatic generation tools. A case study of hardware/software interface modeling at the transaction accurate level is presented. Experimental results show that this method allows higher simulation speed with early performance estimation.
An efficient mode launcher for arrays of longitudinal dipoles in IDG (2002)

The IDG (inset dielectric guide) has proved to be an excellent antenna medium featuring pure polarization, broadband matching, and high efficiency. Antenna characteristics, however, are affected by the feeding system. An effective feed arrangement suitable for application to multiple arrays in IDG is presented.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Improved High-Performance Liquid Chromatography Assay for Atenolol in Plasma and Urine Using Fluorescence Detection (1991)

An improved assay for racemic atenolol (AT) concentrations in human plasma and urine is described using a high-performance liquid chromatographic method with fluorescence detection. The method has a sensitivity limit of 0.5 micrograms/L in plasma with acceptable within- and between-run reproducibilities, and demonstrated linearity at concentrations up to 2,000 micrograms/L. A pilot clinical evaluation of the assay was undertaken on 56 trough plasma specimens from 36 outpatients on established AT therapy. Atenolol concentrations in these patients showed large variations at all prescribed doses, including undetectable levels in four patients (revealing unsuspected noncompliance). Because of its sensitivity and applicability to urinary analysis, the method can be used for pharmacokinetic studies and, under certain circumstances, may be valuable in clinical therapeutic drug monitoring.
Simultaneous localization, mapping, and manipulation for unsupervised object discovery (2015)

We present an unsupervised framework for simultaneous appearance-based object discovery, detection, tracking and reconstruction using RGBD cameras and a robot manipulator. The system performs dense 3D simultaneous localization and mapping concurrently with unsupervised object discovery. Putative objects that are spatially and visually coherent are manipulated by the robot to gain additional motion-cues. The robot uses appearance alone, followed by structure and motion cues, to jointly discover, verify, learn and improve models of objects. Induced motion segmentation reinforces learned models which are represented implicitly as 2D and 3D level sets to capture both shape and appearance. We compare three different approaches for appearance-based object discovery and find that a novel form of spatio-temporal super-pixels gives the highest quality candidate object models in terms of precision and recall. Live experiments with a Baxter robot demonstrate a holistic pipeline capable of automatic discovery, verification, detection, tracking and reconstruction of unknown objects.
Cutting Edge: IL-1 Receptor Signaling is Critical for the Development of Autoimmune Uveitis (2015)

IL-1β is a proinflammatory cytokine important for local and systemic immunity. However, aberrant production of this cytokine is implicated in pathogenic mechanisms of a number of inflammatory diseases, including Behçet's disease and age-related macular degeneration. In this study, we report the increased secretion of IL-1β in the retina by neutrophils, macrophages, and dendritic cells during ocular inflammation and show that loss of IL-1R signaling confers protection from experimental autoimmune uveitis. Moreover, the amelioration of experimental autoimmune uveitis in Il1r-deficient mice was associated with reduced infiltration of inflammatory cells into the retina and decreased numbers of uveitogenic Th17 cells that mediate uveitis. These findings indicate the possible utility of IL-1R-blocking agents for the treatment of ocular inflammatory diseases.
Repetitive Arg‐Gly‐Asp peptide as a cell‐stimulating agent on electrospun poly(ϵ‐caprolactone) scaffold for tissue engineering (2013)

Electrospun scaffolds derived from poly(ϵ-caprolactone) (PCL), a well known biodegradable material, have an architecture that is suitable for hosting cells. However, their biomedical applications are restricted because these scaffolds lack the bioactivity necessary to stimulate cell responses. In this work, a repetitive Arg-Gly-Asp (rRGD) peptide was produced as a cell-stimulating agent to provide the PCL scaffold with bioactivity. DNA encoding rRGD was amplified by polymerase chain reaction using overlap primers without a DNA template, and cloned into a protein expression vector to produce a His-tag fusion peptide. In an in vitro cell adhesion assay, the purified rRGD peptide, comprising 30 RGD repeats, promoted a 1.5-fold greater cell adhesion than the commercial tripeptide RGD. The rRGD peptide was immobilized onto an electrospun PCL scaffold that had been pretreated with argon plasma and graft-polymerized with acrylic acid. Fourier transform infrared (FTIR) analysis indicated that covalently linked rRGD peptide was present on the scaffold. The PCL scaffold with immobilized rRGD showed significantly changed hydrophilic properties and an enhanced adhesion and proliferation of mouse fibroblast cells by 2.3- and 2.9-fold, respectively, compared to the PCL scaffold alone. Through its ability to promote cell adhesion and proliferation, the rRGD peptide has great potential as a stimulant for improving the suboptimal cell-matrix interaction of polymeric scaffolds for tissue engineering applications.
ADSORPTIVE REMOVAL OF SULFUR COMPOUNDS FROM NAPHTHA FRACTIONS BY USING CARBON ADSORBENTS (2003)

Ultra-deep desulfurization of gasoline and diesel fuels is aimed to produce sulfur-free fuels or their sulfur contents below 10 ppm for the environmental protection in urban areas. To develop fuel cell vehicles in the future, olefin and aromatic compounds as well as sulfur compounds are to be removed to extremely low levels of less than percent levels of the former two compounds and tens of ppb levels of sulfur compounds. Hydrodesulfurization(HDS) of gasoline and diesel fuels has been widely applied in petroleum refineries for the production of such sulfur-free fuels, however, reduction of sulfur levels below 10 ppm is hardly achieved by conventional catalysts under HDS process conditions. Much higher activity and selectivity of HDS catalysts should be designed for the removal of refractory sulfur compounds in petroleum light products. Adsorptive removal processes of sulfur compounds from petroleum distillates have been also developing for the complete capture to achieve the sulfur levels below ppm order. Some of such adsorptive sulfur removal procedures are expected to produce sulfurfree gasoline and diesel fuels because of their simple and energysaving manner without hydrogen consumption. Although variable kinds of adsorbents have been screened for the achievement of sulfurfree fuel production, effects of coexisting aromatic compounds on the adsorption selectivity of sulfur compounds are not fully elucidated. Carbon adsorbents such as active carbon and active carbon fiber are one of the most promising materials for the selective removal of sulfur compounds at relatively low temperatures around room temperatures due to their extremely high surface area and very uniform pore size distribution with weak polarity. In the present study, some of mesoporous carbon adsorbents are investigated to estimate their adsorption capacity and selectivity for sulfur compounds such as benzothiophene(BT) and 2-methyl-benzothiophene(2MBT) and in their mixture with some aromatic compounds as model feedstocks. In addition, a real naphtha fraction is also treated with active carbons of different surface areas and particle sizes with or without dilution with n-hexane solvent. Mesoporous active carbons of finer particles are revealed to be preferable for the selective adsorption of two-ring sulfur compounds such as BT and 2MBT.
Comparative Thrombolytic Properties of Tissue-Type Plasminogen Activator and of a Plasminogen Activator Inhibitor-1 -Resistant Glycosylation Variant, in a Combined Arterial and Venous Thrombosis Model in the Dog (1994)

rt-PA-K, a variant of recombinant tissue-type plasminogen activator (rt-PA) with substitution of amino acids 296 to 299 with alanine (KHRR296-299AAAA) has increased fibrin-specificity and reduced sensitivity to plasminogen activator inhibitor-1; rt-PA-T, with threonine 103 replaced by asparagine has an additional glycosylation site and a reduced clearance; and rt-PA-N, with asparagine 117 mutagenized to glutamine lacks the high mannose carbohydrate side chain. We have investigated whether combination of these properties in a single molecule might yield an improved thrombolytic agent. The thrombolytic potency and fibrin-specificity of the combination mutant rt-PA-TNK was compared with that of rt-PA in a combined venous whole blood clot model and platelet-rich arterial eversion graft thrombosis model in dogs given intravenous heparin and aspirin. Infusion of 0.125 to 1.0 mg/kg over 60 min in groups of 4 to 5 dogs produced dose-dependent fibrin-specific venous clot lysis. The thrombolytic potency (percent lysis per mg compound administered per kg body weight) of rt-PA-TNK was significantly higher than that of rt-PA as evidenced by a higher maximal rate of lysis of 480 +/- 100% versus 140 +/- 40% within the 2 h observation period per mg of compound administered per kg body weight (mean +/- SEM, p = 0.004) and a significantly lower dose of 0.08 +/- 0.01 versus 0.21 +/- 0.04 mg/kg body weight at which the maximal rate of lysis was obtained (p = 0.004).(ABSTRACT TRUNCATED AT 250 WORDS)
Production of a Novel Mannosylerythritol Lipid Containing a Hydroxy Fatty Acid from Castor Oil by Pseudozyma tsukubaensis (2013)

Mannosylerythritol lipids (MELs) are glycolipid biosurfactants produced by various yeasts belonging to the genus Pseudozyma, which exhibit excellent surface activities as well as versatile biochemical activities. A study on P. tsukubaensis NBRC1940 as a mono-acetylated MEL (MEL-B) producer revealed that the yeast accumulated a novel glycolipid from castor oil at a yield of 22 g/L. Its main chemical structure was identified as 1-O-β-(2'-O-alka(e)noyl-3'-O-hydroxyalka(e)noyl-6'-O-acetyl-D-mannopyranosyl)-D-erythritol designated as "new MEL-B." The new MEL-B, comprising a hydroxy fatty acid had a reduced surface tension of 28.5 mN/m at a critical micelle concentration (CMC) of 2.2×10⁻⁵ M in water. The observed CMC was 5-fold higher than that of conventional MEL-B. When conventional MEL-B was dispersed in water, it self-assembled to form the lamellar (L(α)) phase at a wide range of concentrations. In contrast, new MEL-B formed spherical oily droplets similar to the sponge (L₃) phase, which is observed in aqueous solutions of di-acetylated MEL (MEL-A). The data suggest that the newly identified MEL-B is likely to have a different structure and interfacial properties compared to the conventional MELs, and could facilitate an increase in the application of glycolipid biosurfactants.
DSP implementation of a preambleless all-digital OQPSK demodulator for maritime and mobile data communications (1993)

The DSP implementation and synchronisation algorithms for a low-bit-rate all-digital preambleless demodulator for mobile applications are described. This demodulator has been developed and implemented for OQPSK modulation particularly but it can work equally well for BPSK and QPSK. The performance results of implemented demodulator are provided in terms of acquisition and bit-error-rate performances.<
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Feature Mining for Localised Crowd Counting (2012)

This paper presents a multi-output regression model for crowd counting in public scenes. Existing counting by regression methods either learn a single model for global counting, or train a large number of separate regressors for localised density estimation. In contrast, our single regression model based approach is able to estimate people count in spatially localised regions and is more scalable without the need for training a large number of regressors proportional to the number of local regions. In particular, the proposed model automatically learns the functional mapping between interdependent low-level features and multi-dimensional structured outputs. The model is able to discover the inherent importance of different features for people counting at different spatial locations. Extensive evaluations on an existing crowd analysis benchmark dataset and a new more challenging dataset demonstrate the effectiveness of our approach.
From the ground up: the DIMACS software security workshop (2003)

The DIMACS Software Security Workshop held in New Jersey explored issues such as security engineering, architecture and implementation risks, security analysis, mobile and malicious code, education and training, and open research issues. Many promising techniques have grown from connections between computer security, programming languages, and software engineering, and one workshop goal was to bring these communities closer together to crystallize the software security subfield.
DISCO: Distributed multi-domain SDN controllers (2014)

Software-Defined Networking (SDN) is now envisioned for Wide Area Networks (WAN) and constrained overlay networks. Such networks require a resilient, scalable and easily extensible SDN control plane. In this paper, we propose DISCO, an extensible DIstributed SDN COntrol plane able to cope with the distributed and heterogeneous nature of modern overlay networks. A DISCO controller manages its own network domain and communicates with other controllers to provide end-to-end network services. This east-west communication is based on a lightweight and highly manageable control channel. We implemented DISCO on top of the Floodlight OpenFlow controller and the AMQP protocol and we evaluated it through an inter-domain topology disruption use case.
Base accelerated degradation of polyvinyl chloride (1955)

Abstract The degradation at 150°C. of polyvinyl chloride in the presence of base is studied by means of ultraviolet, visible, and infrared spectra. The reaction of polyvinyl chloridebase systems at 150°C. is viewed as a base accelerated dehydrochlorination of polyvinyl chloride proceeding through initiation, propagation, and termination phases. Polyene units with sixteen double bonds in conjugation are considered to be the most probable component of polyene structures contributing to the longest wave length absorption maxima recorded at 550 mμu. Dichroism to polarized light is observed in a plasticized, oriented, base degraded polyvinyl chloride film. This dichroism is considered a confirmation of the assigned polyene structure. The infrared spectra obtained reveal the development, as the reaction progresses, of conjugated carbon‐carbon double bonds, conjugated carbonyl groups, bonded hydroxyl groups such as from hydroperoxides and/or alcohols, and the eventual formation of carboxyl groups. The mechanism of the oxidative degradation at 150°C. is attributed to the attack, after dehydrohalogenation, by molecular oxygen at the olefinic double bonds to form peroxide radicals which by radical chain transfer yield hydroperoxides that degrade to carbonyl containing products.
Metal complexes of rubeanic acid. 3. Large-Angle x-ray scattering studies of amorphous copper(II) and nickel(II) complexes (1985)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMetal complexes of rubeanic acid. 3. Large-Angle x-ray scattering studies of amorphous copper(II) and nickel(II) complexesMostafa Abboudi, Alain Mosset, and Jean GalyCite this: Inorg. Chem. 1985, 24, 13, 2091–2094Publication Date (Print):June 1, 1985Publication History Published online1 May 2002Published inissue 1 June 1985https://pubs.acs.org/doi/10.1021/ic00207a026https://doi.org/10.1021/ic00207a026research-articleACS PublicationsRequest reuse permissionsArticle Views304Altmetric-Citations27LEARN 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
Big Data Meets Quantum Chemistry Approximations: The Δ-Machine Learning Approach (2015)

Chemically accurate and comprehensive studies of the virtual space of all possible molecules are severely limited by the computational cost of quantum chemistry. We introduce a composite strategy that adds machine learning corrections to computationally inexpensive approximate legacy quantum methods. After training, highly accurate predictions of enthalpies, free energies, entropies, and electron correlation energies are possible, for significantly larger molecular sets than used for training. For thermochemical properties of up to 16k isomers of C7H10O2 we present numerical evidence that chemical accuracy can be reached. We also predict electron correlation energy in post Hartree-Fock methods, at the computational cost of Hartree-Fock, and we establish a qualitative relationship between molecular entropy and electron correlation. The transferability of our approach is demonstrated, using semiempirical quantum chemistry and machine learning models trained on 1 and 10% of 134k organic molecules, to reproduce enthalpies of all remaining molecules at density functional theory level of accuracy.
Sensitivity of FFT-equalised zero-padded OFDM systems to time and frequency synchronisation errors (2005)

A detailed analysis of the performance of FFT-equalised (FFT-EQ) zero-padded OFDM (ZP-OFDM) systems in the presence of time and frequency synchronisation errors is given. In order to achieve low-complexity in equalisation, FFT-based demodulation and per subcarrier channel equalisation is considered for ZP-OFDM. It is shown that, unlike in cyclic-prefix OFDM (CP-OFDM), FFT-equalised ZP-OFDM is sensitive to time synchronisation error causing ICI. An exact expression for ICI is derived in terms of time and frequency synchronisation errors for both AWGN and frequency-selective Rayleigh fading channels. Moreover, based on the Gaussian approximation for the ICI noise, expressions are derived for the symbol-error-probability (SEP) of a FFT-EQ-ZP-OFDM system with time and frequency synchronisation errors in both AWGN and frequency-selective Rayleigh fading channels. Numerical results demonstrate the sensitivity of FFT-EQ-ZP-OFDM systems to synchronisation errors.
The Protective Effect of Spermine and Other Polyamines Against Heat Denaturation of Deoxyribonucleic Acid (1962)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Protective Effect of Spermine and Other Polyamines Against Heat Denaturation of Deoxyribonucleic AcidHerbert TaborCite this: Biochemistry 1962, 1, 3, 496–501Publication Date (Print):May 25, 1962Publication History Published online1 May 2002Published inissue 25 May 1962https://doi.org/10.1021/bi00909a021RIGHTS & PERMISSIONSArticle Views241Altmetric-Citations186LEARN 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 InReddit PDF (664 KB) Get e-Alertsclose Get e-Alerts
Development of a three‐dimensional radiation dosimetry system (2002)

A radiochromic gel dosemeter in which ionizing radiation causes a color change in the visible wavelength region was produced. The roles of the dosemeter's active components were quantified with special consideration given to their effect on the system sensitivity and stability. Optimal composition was found to be 0.5 mM ferrous sulfate, 0.1 mM xylenol orange, and 25 mM sulfuric acid. The dose response is linear in the range 0.1–30 Gy and the dosemeter sensitivity was where A is the optical absorbance measured at a wavelength of 585 nm. An optical tomography scanner with parallel light beam and charged coupled device detector was designed, built, and used to interrogate cylindrical samples of the dosemeter. The current version of the scanner can cope with samples up to 10 cm in diameter limited by the width of the light beam. A maximum of 512×512 pixels per slice images are obtainable with this scanner. Slice thickness as small as 0.14 mm was achieved that is much narrower than the value of about 6 mm achieved when using the MRI method of three‐dimensional (3D) readout. The time to acquire a stack of 100 cross‐sectional images with a resolution of 128×128 pixels per slice is about 20 min. The 3D imaging performance was tested with collimated x‐ray beams, and the scanner high‐resolution presentation demonstrated.
A new non-linear electrothermal 3D spline model with charge integration for power FETs (2005)

A new 3D table-based model for microwave field effect transistors is proposed. This non-linear electrothermal model depends on three variables: the gate-source voltage Vgs, the drain-source voltage Vds and the junction temperature T of the device. These three commands drive five non-linearities: the input current source Ig, the drain current source Id and the capacities Cds, Cgs and Cgd. This paper describes the extraction of the model and its implementation in a CAD software. Its extraction from pulsed I(V) and S parameter measurements is very fast and doesn't require any optimization process. As an example, the modelling of a silicon carbide (SiC) power FET and simulation results are presented in order to show the capabilities of this model.