gebhart/patrepeval huggingface dataset:
GRNN with Double Clustering (2006)

The hybrid combination of three techniques has yielded a pattern recognition and estimation technique with greatly improved training speed, orders-of-magnitude speed improvement for testing and readout, and sometimes improved accuracy as well. It is useful for problems with high dimensionality and noisy data. The techniques used are clustering, kernel regression with adaptive parameters, a second level of clustering, and the formation of a binary decision tree. When previous versions of general regression neural networks have been used as the system identification component for control systems, the most important problem has been that the estimation speed limits the iteration time in the feedback loop. The new hybrid technique was designed specifically to overcome this limitation.
Estimation of Solvent Activities in Polymer Solutions Using a Group-Contribution Method (1978)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEstimation of Solvent Activities in Polymer Solutions Using a Group-Contribution MethodTakeru Oishi and John M. PrausnitzCite this: Ind. Eng. Chem. Process Des. Dev. 1978, 17, 3, 333–339Publication Date (Print):July 1, 1978Publication History Published online1 May 2002Published inissue 1 July 1978https://pubs.acs.org/doi/10.1021/i260067a021https://doi.org/10.1021/i260067a021research-articleACS PublicationsRequest reuse permissionsArticle Views1712Altmetric-Citations399LEARN 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
COPACC: An Architecture of Cooperative Proxy-Client Caching System for On-Demand Media Streaming (2006)

Proxy caching is a key technique to reduce transmission cost for on-demand multimedia streaming. The effectiveness of current caching schemes, however, is limited by the insufficient storage space and weak cooperation among proxies and their clients, particularly considering the high bandwidth demands from media objects. In this paper, we propose COPACC, a cooperative proxy-and-client caching system that addresses the above deficiencies. This innovative approach combines the advantages of both proxy caching and peer-to-peer client communications. It leverages the client-side caching to amplify the aggregated cache space and rely on dedicated proxies to effectively coordinate the communications. We propose a comprehensive suite of distributed protocols to facilitate the interactions among different network entities in COPACC. It also realizes a smart and cost-effective cache indexing, searching, and verifying scheme. Furthermore, we develop an efficient cache allocation algorithm for distributing video segments among the proxies and clients. The algorithm not only minimizes the aggregated transmission cost of the whole system, but also accommodates heterogeneous computation and storage constraints of proxies and clients. We have extensively evaluated the performance of COPACC under various network and end-system configurations. The results demonstrate that it achieves remarkably lower transmission cost as compared to pure proxy-based caching with limited storage space. On the other hand, it is much more robust than a pure peer-to-peer communication system in the presence of node failures. Meanwhile, its computation and control overheads are both kept in low levels
Plethysmographic recordings of skin pulses. V. Piezoelectric and photoelectric measurements in venous leg ulcers (1972)

No abstract available
Current-mode all-pass filters using current differencing buffered amplifier and a new high-Q bandpass filter configuration (2000)

A new configuration realizing first-order canonical current processing all-pass filters based on current differencing buffered amplifier, a recently introduced active element, is proposed. Using this configuration, two types of first-order current-mode all-pass filters are derived. They employ only a single active element and a bare minimum number of passive components. No component-matching constrains are required. Because of the high performance of the current differencing buffered amplifier, they are suitable for wideband applications. The derived filters are cascadable because of their high output impedances and they use fewer active and/or passive components compared to their previously reported counterparts. As an application of the proposed first-order all-pass networks, a new current-mode high-Q bandpass filter, which offers a number of advantages over its counterparts, is also given.
Improved single image dehazing using dark channel prior (2010)

Atmospheric conditions induced by suspended particles, such as fog and haze, severely degrade image quality. Haze removal from a single image of a weather-degraded scene remains a challenging task, because the haze is dependent on the unknown depth information. In this paper, we introduce an improved single image dehazing algorithm which based on the atmospheric scattering physics-based models. We apply the local dark channel prior on selected region to estimate the atmospheric light, and obtain more accurate result. Experiments on real images validate our approach.
EptC of Campylobacter jejuni Mediates Phenotypes Involved in Host Interactions and Virulence (2012)

Campylobacter jejuni is a natural commensal of the avian intestinal tract. However, the bacterium is also the leading cause of acute bacterial diarrhea worldwide and is implicated in development of Guillain-Barré syndrome. Like many bacterial pathogens, C. jejuni assembles complex surface structures that interface with the surrounding environment and are involved in pathogenesis. Recent work in C. jejuni identified a gene encoding a novel phosphoethanolamine (pEtN) transferase, EptC (Cj0256), that plays a promiscuous role in modifying the flagellar rod protein, FlgG; the lipid A domain of lipooligosaccharide (LOS); and several N-linked glycans. In this work, we report that EptC catalyzes the addition of pEtN to the first heptose sugar of the inner core oligosaccharide of LOS, a fourth enzymatic target. We also examine the role pEtN modification plays in circumventing detection and/or killing by host defenses. Specifically, we show that modification of C. jejuni lipid A with pEtN results in increased recognition by the human Toll-like receptor 4-myeloid differentiation factor 2 (hTLR4-MD2) complex, along with providing resistance to relevant mammalian and avian antimicrobial peptides (i.e., defensins). We also confirm the inability of aberrant forms of LOS to activate Toll-like receptor 2 (TLR2). Most exciting, we demonstrate that strains lacking eptC show decreased commensal colonization of chick ceca and reduced colonization of BALB/cByJ mice compared to wild-type strains. Our results indicate that modification of surface structures with pEtN by EptC is key to its ability to promote commensalism in an avian host and to survive in the mammalian gastrointestinal environment.
Affine Model Based Motion Compensation Prediction for Zoom (2012)

Zoom motion is classified into two categories, i.e., global zoom motion and local zoom motion. A simple affine motion model with four parameters is utilized to describe zoom motion efficiently based on the analyses of camera imaging principles. Based on the motion model, a basic candidate motion vector (BCMV) of a block could be derived when model parameters are confirmed. Then a set of candidate motion vectors (CMVs) could be obtained by modifying the BCMV. Thereafter, template matching is used to choose the optimal CMV (OCMV). Finally, the block is coded with the optimal CMV as an independent mode, and a rate distortion (RD) criterion is used to determine whether to use the mode or not. Experimental results demonstrate that by implementing the proposed method into Key Technology Area test platform version 2.6r1 (KTA2.6r1), a maximum -21.99% and average -8.72% bit rate savings can be achieved for videos involving zoom motion, while maintaining the same quality (evaluated by PSNR) of reconstructed videos when IPPPP coding structure is used. When Hierarchical B coding structure is employed, the maximum and average bit rate savings are - 10.48% and - 5.575% when the qualities of reconstructed videos remain unchanged. Besides, for videos involving camera rotation, translation, etc., an average -2.04% bit rate savings could also be achieved; while for videos containing common motions, an average -1.19% bit rate saving could be achieved at the same quality of reconstructed videos.
Algorithm for pitch extraction using zero-crossing interval sequence (1977)

A novel digital computer algorithm for pitch period analysis of connected speech is presented. The principal idea employed is to find the periodic-like portions of the speech, from its zero-crossing interval (ZCI) sequence, by an adaptive search. The algorithm requires only additions and comparisons, no multiplication. An implementation of the algorithm on a 1.5 μs memory-cycle computer (PDP-8) performs the analysis in real time, as accurately as manually performed pitch measurements from a plot of the speech waveform low-pass filtered to a bandwidth of 900 Hz in such a way that each pitch boundary is marked on a zero-crossing. Although 12 threshold values are used for decision making, only two of them, the upper and lower limits of the speaker's one octave pitch range, are speaker dependent. However, these two threshold values of a speaker are easily extracted and set by the algorithm from a sample of only 4-5 s duration of his (or her) normal speech.
IMAGE ACQUISITION AND MODEL SELECTION FOR MULTI-VIEW STEREO (2013)

Abstract. Dense image matching methods enable efficient 3D data acquisition. Digital cameras are available at high resolution, high geometric and radiometric quality and high image repetition rate. They can be used to acquire imagery for photogrammetric purposes in short time. Photogrammetric image processing methods deliver 3D information. For example, Structure from Motion reconstruction methods can be used to derive orientations and sparse surface information. In order to retrieve complete surfaces with high precision, dense image matching methods can be applied. However, a key challenge is the selection of images, since the image network geometry directly impacts the accuracy, as well as the completeness of the point cloud. Thus, the image stations and the image scale have to be selected according carefully to the accuracy requirements. Furthermore, most dense image matching solutions are based on multi-view stereo algorithms, where the matching is performed between selected pairs of images. Thus, stereo models have to be selected from the available dataset in respect to geometric conditions, which influence completeness, precision and processing time. Within the paper, the selection of images and the selection of optimal stereo models are discussed according to to photogrammetric surface acquisition using dense image matching. For this purpose, impacts of the acquisition geometry are evaluated for several datasets. Based on the results, a guideline for the acquisition of imagery for photogrammetric surface acquisition is presented. The simple and efficient capturing approach with "One panorama each step" ensures complete coverage and sufficiently redundant observations for a surface reconstruction with high precision and reliability.
Identification of plant promoter constituents by analysis of local distribution of short sequences (2007)

LDSS was successfully applied to plant genomes and hundreds of putative promoter elements have been extracted as LDSS-positive octamers. Identified promoter architecture of monocot and dicot are well conserved, but there are moderate variations in the utilized sequences.
Cyclic AMP-elevating agents block chemoattractant activation of diradylglycerol generation by inhibiting phospholipase D activation (1991)

Agents which elevate cellular cAMP (prostaglandin E2, theophylline, and forskolin) or mimic cAMP action (dibutyryl cAMP) are known to inhibit human neutrophil activation (superoxide generation and secretion) by receptor-linked agonists such as formyl-methionyl-leucyl-phenylalanine (fMLP). Herein, we show that these agents also markedly inhibit fMLP-stimulated diradylglycerol generation (assayed by mass methods). The magnitude of inhibition correlated with the ability of a given agent or combination of agents to elevate cAMP. Both 1,2-diacylglycerol and 1-O-alkyl,2-acyl glycerol generation were affected. Effects on the latter species, as well as a lack of effect on fMLP-stimulated inositol phosphate release, implied that cAMP affected diradylglycerol generation from a source other than phospholipase C-dependent phosphoinositide hydrolysis, since phosphatidylinositols do not contain appreciable quantities of the 1-O-alkyl linkage. In cells in which the phosphatidylcholine pool was prelabeled using 1-O-[3H]octadecyl-2-lyso-sn-glycero-3-phosphocholine, prostaglandin E2 plus theophylline inhibited the fMLP-activated rapid generation of [3H]phosphatidic acid and its subsequent conversion to [3H]diradylglycerol, implying an effect at the level of phospholipase D. In the presence of ethanol, the fMLP-activated transphosphatidylation of [3H]phosphatidylcholine to generate [3H]phosphatidylethanol (a phospholipase D-dependent reaction) was also markedly inhibited. In contrast, when phorbol 12-myristate 13-acetate was used to activate cells, cAMP-related agents had no effect on phospholipase D activity, diradylglycerol generation, or superoxide generation. The data indicate an inhibitory effect of cyclic AMP on receptor-mediated phospholipase D activation at a site proximal to phospholipase D (e.g., the receptor or G protein). These studies provide a new example of "cross-talk" among signal transduction systems.
Continuous poly(2-oxazoline) triblock copolymer synthesis in a microfluidic reactor cascade (2015)

Cationic ring-opening polymerizations of 2-oxazolines were investigated in continuous microflow reactors. Fast homopolymerizations of 2-ethyl-2-oxazoline (EtOx) and 2-n-propyl-2-oxazoline (nPropOx) were carried out up to 180 °C, yielding well-controlled polymers. Also well-defined diblock and triblock copolymers were produced in a microfluidic reactor cascade, demonstrating the high value of microflow synthesis for the built-up of advanced poly(2-oxazoline)-based polymers.
Tooth structure removal associated with various preparation designs for posterior teeth. (2002)

The amount of tooth structure removed for various innovative and conventional preparation designs for fixed prosthodontics was quantified. Four Typodont resin teeth representing maxillary and mandibular premolars and molars were prepared in various abutment designs: adhesive, box (A2); adhesive, wing and groove (A3); mesioocclusal or distoocclusal inlay; mesio-occlusodistal inlay (13); mesio-occlusodistal onlay; partial crown; half crown (only molars); complete crown, 0.8-mm circumferential tapered chamfer (F1); complete crown, 1.0-mm circumferential rounded shoulder; and complete crown, 1.4-mm axial reduction facial shoulder, 0.7-mm lingual chamfer (F3). After tooth preparation (10 per group), the root was separated from the anatomic crown at the cementoenamel junction. Removal of tooth structure was measured by gravimetric analysis in a high-precision balance. Preparations A3 and F3 were assigned as abutments for metal-supported restorations, whereas all other preparations were used for all-ceramic restorations. When the mean structure removal of all teeth tested was compared, the adhesive and inlay abutments were the least invasive preparation designs, ranging from approximately 5.5% (A2) to 27.2% (13) tooth structure removal. Complete crowns required the most invasive preparations, ranging from 67.5% (F1) to 75.6% (F3) tooth structure removal. The tooth structure removal required for F3 retainers was almost 14 times greater than for an A2 preparation. Tooth structure removal was also influenced by the morphology of the tooth. The first comprehensive tooth preparation design classification system was introduced. The measurement system used in this study provides an accurate method of quantifying tooth structure removal for fixed prosthodontic preparations. The innovative preparation designs studied conserved significant amounts of tooth structure, yielding a better prognosis for the restored tooth.
Bioremediation Field Experience (1994)

Introduction. Environmental Regulations: Bioremediation: Environmental Regulations and Resulting Market Opportunities. Factors for Selection of Bioremediation: Selection of Bioremediation for Site Cleanup: Decision Factors. Laboratory Treatability Testing for Assessment of Field Applicability. Shoreline Treatment Following Crude Oil Spill: Engineering Approaches Using Bioremediation to Treat Crude Oil-Contaminated Shoreline Following the Exxon Valdez Accident in Alaska. Land Treatment of Soil: Reclaiming Contaminated Land: In Situ/Ex Situ Bioremediation of Creosote- and Petroleum Hydrocarbon-Contaminated Sites. Biological Land Treatment of Diesel Fuel-Contaminated Soil: Emergency Response Through Closure. Full-Scale Bioremediation of No. 6 Fuel Oil-Contaminated Soil: Six Months of Active and Three Years of Passive Treatment. Solid-Phase Bioremediation of Petroleum Hydrocarbon-Contaminated Soil: Laboratory Treatability Study Through Site Closure.Treatment of Surface Impoundment S ludges: In Situ Liquid/Solids Treatment of Petroleum Impoundment Sludges: Engineering Aspects and Field Applications. Closure of an RCRA Surface Impoundment by Employing a Modified Biological Treatment Approach. Aqueous Waste Treatment: The Use of Submerged Fixed-Film Bioreactors to Treat Aqueous Wastes. Powdered Activated Carbon Treatment of Aqueous Wastes at Superfund Sites. Hydrogeological Modeling for Optimization of In Situ Treatment: Modeling of Hydrogeologic Field Data for Design and Optimization of In Situ Bioremediation of Contaminated Aquifers. Hydrogen Peroxide and Nitrate for Enhanced In Situ Treatment: Oxygen Sources for In Situ Bioremediation. A Full-Scale Field Demonstration on the Use of Hydrogen Peroxide for In Situ Bioremediation of an Aviation Gasoline-Contaminated Aquifer. Nitrate-Mediated Biodegradation of BETX in JP-4-Contaminated Soil and Groundwater: A Field Pilot-Scale Demonstration Project. In Situ Treatment of Subsurface Soil and Groundwater: A Laborat ory and Field Evaluation of Enhanced In Situ Bioremediation of Trichloroethylene, cis- and trans-Dichloroethylene, and Vinyl Chloride by Methanotrophic Bacteria. In Situ Bioremediation: Site Characterization, System Design, and Full-Scale Field Remediation of Petroleum Hydrocarbon- and Trichloroethylene-Contaminated Groundwater. An Integrated System Approach for In Situ Bioremediation of Petroleum Hydrocarbon-Contaminated Soil and Groundwater. In Situ Bioremediation of Petroleum Hydrocarbon-Contaminated Soil and Groundwater in a Low-Permeability Aquifer. Treatment of Subsurface Soil and Groundwater: Remediation of Soil and Groundwater Contaminated with Petroleum Hydrocarbons Using the PetroCleanO Bioremediation System. Bioremediation of Ethylene Glycol-Contaminated Groundwater at the Naval Air Warfare Center in Lakehurst, New Jersey. Vapor-Phase Treatment of Volatile Organic Compounds: Field Pilot-Scale Vapor-Phase Treatment of Styrene Using Biofiltration. List of Authors. List of Peer Reviewers.
Brief comparison of the pharmacokinetics and pharmacodynamics of the traditional and newer antipsychotic drugs (1995)

The pharmacokinetics and pharmacodynamics of chlorpromazine, haloperidol, clozapine, and risperidone are described. Most traditional antipsychotic drugs have similar pharmacokinetic profiles that differ from the newer agents in several key respects. Traditional agents tend to be completely absorbed and undergo extensive presystemic elimination, but clearance tends to be almost exclusively by hepatic-enzyme metabolism. The volume of distribution is large, steady-state plasma concentrations are highly variable, and many traditional antipsychotic drugs have pharmacologically active metabolites. The newer antipsychotic agents clozapine and risperidone are also well absorbed and undergo extensive presystemic elimination. They are cleared mostly through hepatic-enzyme metabolism, but a small portion of risperidone is cleared renally. Steady-state plasma concentrations of clozapine and risperidone exhibit large interpatient differences at therapeutic dosages. The primary metabolite of risperidone, 9-hydroxyrisperidone, has activity equipotent to that of the parent drug. It is not clear whether clozapine produces active metabolites. Basic information on the pharmacokinetics and pharmacodynamics of clozapine and risperidone is known; however, more information is needed.
Inhibition of Calcium Uptake via the Sarco/Endoplasmic Reticulum Ca2+-ATPase in a Mouse Model of Sandhoff Disease and Prevention by Treatment with N-Butyldeoxynojirimycin (2003)

Gangliosides are found at high levels in neuronal tissues where they play a variety of important functions. In the gangliosidoses, gangliosides accumulate because of defective activity of the lysosomal proteins responsible for their degradation, usually resulting in a rapidly progressive neurodegenerative disease. However, the molecular mechanism(s) leading from ganglioside accumulation to neurodegeneration is not known. We now examine the effect of ganglioside GM2 accumulation in a mouse model of Sandhoff disease (one of the GM2 gangliosidoses), the Hexb-/- mouse. Microsomes from Hexb-/- mouse brain showed a significant reduction in the rate of Ca2+-uptake via the sarco/endoplasmic reticulum Ca2+-ATPase (SERCA), which was prevented by feeding Hexb-/- mice with N-butyldeoxynojirimycin (NB-DNJ), an inhibitor of glycolipid synthesis that reduces GM2 storage. Changes in SERCA activity were not due to transcriptional regulation but rather because of a decrease in Vmax. Moreover, exogenously added GM2 had a similar effect on SERCA activity. The functional significance of these findings was established by the enhanced sensitivity of neurons cultured from embryonic Hexb-/- mice to cell death induced by thapsigargin, a specific SERCA inhibitor, and by the enhanced sensitivity of Hexb-/- microsomes to calcium-induced calcium release. This study suggests a mechanistic link among GM2 accumulation, reduced SERCA activity, and neuronal cell death, which may be of significance for delineating the neuropathophysiology of Sandhoff disease.