gebhart/patrepeval huggingface dataset:
Multicore-Optimized Wavefront Diamond Blocking for Optimizing Stencil Updates (2015)

The importance of stencil-based algorithms in computational science has focused attention on optimized parallel implementations for multilevel cache-based processors. Temporal blocking schemes leverage the large bandwidth and low latency of caches to accelerate stencil updates and approach theoretical peak performance. A key ingredient is the reduction of data traffic across slow data paths, especially the main memory interface. In this work we combine the ideas of multicore wavefront temporal blocking and diamond tiling to arrive at stencil update schemes that show large reductions in memory pressure compared to existing approaches. The resulting schemes show performance advantages in bandwidth-starved situations, which are exacerbated by the high bytes per lattice update case of variable coefficients. Our thread groups concept provides a controllable trade-off between concurrency and memory usage, shifting the pressure between the memory interface and the CPU. We present performance results on a contemporary Intel processor.
Optothermal Molecule Trapping by Opposing Fluid Flow with Thermophoretic Drift (2006)

Thermophoresis moves molecules along temperature gradients, typically from hot to cold. We superpose fluid flow with thermophoretic molecule flow under well-defined microfluidic conditions, imaged by fluorescence microscopy. DNA is trapped and accumulated 16-fold in regions where both flows oppose each other. Strong 800-fold accumulation is expected, however, with slow trapping kinetics. The experiment is equally described by a three-dimensional and one-dimensional analytical model. As an application, we show how a radially converging temperature field confines short DNA into a 10 microm small spot.
Estimation of Uncertainty in Feature Based Metrology. (1st Report). Uncertainty from Systematic Errors in Calibration Process. (2001)

In coordinate metrology, a feature (Gaussian associated feature) is calculated from a measured data set of CMM (Coordinate Measuring Machine) using a least squares method. This data processing flow is called as "feature based metrology". In the feature based metrology, it is a key technique to estimate the uncertainty of measurement in the specific measuring strategy. The estimation method for uncertainties of measured parameters has been already proposed when the only random errors are put in the consideration. In this paper, the effects of systematic errors are theoretically analyzed to estimate the uncertainties in feature based metrology. The center position error and the diameter error of the ball probe are occurred from the random errors of probing in calibration process. These errors propagate as unknown systematic errors to the uncertainties of measured parameters such as the center position and the diameter of a measured circle. The method to calculate the error matrix was derived when the center position and the diameter of the circle are measured. Using this method, the uncertainties of the measured parameters can also be calculated in the complex measuring strategy. The series of simulations for this method in statistical way directly implies that the concept and the basic data processing method in this paper are useful to the feature based metrology.
<i>In vitro</i> susceptibility of <i>Brachyspira hyodysenteriae</i> to organic acids and essential oil components (2015)

The antibacterial potential of organic acids and essential oil components against Brachyspira hyodysenteriae, the causative pathogen of swine dysentery, was evaluated. Minimum inhibitory concentrations (MIC) of 15 compounds were determined at pH 7.2 and pH 6.0, using a broth microdilution assay. In addition, possible synergism was determined. MIC values for the three tested strains were similar. For organic acids, MIC values at pH 6.0 were lower than at pH 7.2. B. hyodysenteriae was most sensitive to cinnamaldehyde and lauric acid, with MIC values <1.5 mM. Most antibacterial effects of binary combinations were additive, however, for thymol and carvacrol, synergism could be observed. In vitro results demonstrate the antibacterial action of certain essential oil components and organic acids against B. hyodysenteriae.
Sustainable Archiving and Storage Management of Audiovisual Digital Assets (2009)

With the advent of end-to-end tapeless production and distribution, the concept of what it means to archive audiovisual content is being challenged. The traditional role of the archive as a repository for material after broadcast is changing as a result of digital file-based technologies and high-speed networking. Rather than being at the end of the production chain, the archive is becoming an integral part of the production process and is being absorbed into wider digital storage environments, including those distributed or used across organizational boundaries. This paper presents some of the work done in the U.K. AVATARm project on service-oriented approaches to digital permanence and preservation of audiovisual content. The main focus is how to specify and govern federated storage services to ensure the long-term safety, security, and accessibility of audiovisual assets in a managed and cost-effective way.
Heuristic Authorship Obfuscation (2019)

Authorship verification is the task of determining whether or not two texts were written by the same author. This paper deals with the adversary task, called authorship obfuscation: Preventing verification by altering a tobe-obfuscated text. We introduce an approach that (1) models writing style difference as the Jensen-Shannon distance between the character n-gram distributions of texts, and (2) manipulates an author's subconsciously encoded writing style in a sophisticated manner using heuristic search. To obfuscate, we explore the huge space of textual variants in order to find a paraphrased version of the to-be-obfuscated text that has a sufficient Jensen-Shannon distance at minimal costs in terms of text quality loss. We analyze, quantify, and illustrate the rationale of this approach, define paraphrasing operators, derive obfuscation thresholds, and develop an effective obfuscation framework. Our authorship obfuscation approach defeats state-of-the-art verification approaches, including unmasking and compression models, while keeping text changes at a minimum.
Ultra-wideband slot-loaded antipodal Vivaldi antenna array (2011)

A slot loading exploited as a novel termination of conventional Vivaldi antennas is introduced. This named slot-loaded Vivaldi antenna has been demonstrated to have the impedance bandwidth of over 25:1. In addition, an 1×4 H-plane phased array is constructed to demonstrate maximum 30 degree scan angle operated at the ultra-wide bandwidth of 4-16 GHz.
Current Status and Directions of IEEE 802.11be, the Future Wi-Fi 7 (2020)

While customers rivet their eyes on Wi-Fi 6, in the bowels of the IEEE 802.11 Working Group that creates Wi-Fi standards, the next generation Wi-Fi is being developed. At the very first sight, the new IEEE 802.11be amendment to the Wi-Fi standard is nothing but scaled 11ax with doubled bandwidth and the increased number of spatial streams, which together provide data rates as high as 40 Gbps. A bit deeper dive into the 802.11 activities reveals that 11be will support real-time applications. In reality, 11be introduces many more revolutionary changes to Wi-Fi, which will form a basement for further Wi-Fi evolution. Although by now (May 2020), the development process is at the very early phase without any draft specification, the analysis of the discussion in the 802.11 Working Group gives insights into the main innovations of 11be. In addition to the ones above, they include native multi-link operation, channel sounding optimization that opens the door for massive MIMO, advanced PHY and MAC techniques, the cooperation of various access points. The paper analyzes hundreds of features proposed for the new technology, focusing on the open problems that can be solved by the researchers who want to contribute to the development of 802.11be.
Surface antigens of<i>Toxoplasma gondii</i> (1988)

Monoclonal antibodies reacting with pellicular antigens of Toxoplasma gondii tachyzoites have been selected among hybridomas produced against this organism by immunofluorescence assay. These antigens have been further characterized by immunofluorescence on living zoites, Western immunoblotting and immunoprecipitation of lactoperoxidase surface radio-iodinated tachyzoite lysates. The simultaneous characterization of 5 different surface antigens (P43, P35, P30, P23, P22) some of which have already been studied individually allowed a better definition of these antigens and the characterization of a yet undescribed surface molecule (P23).
Prostate-specific expression of the diphtheria toxin A chain (DT-A): studies of inducibility and specificity of expression of prostate-specific antigen promoter-driven DT-A adenoviral-mediated gene transfer. (2002)

Diphtheria toxin (DT) is a potent inhibitor of protein synthesis. As little asa single molecule of DT can result in cell-cycle independent cell death. This profound potency has led to difficulties in the development of DT as a suicide gene in cancer gene therapy, because toxicity appears to be related primarily to the fidelity of basal gene expression and the yield of viral titer. We evaluated the feasibility of prostate-specific DT gene therapy by cloning the catalytic domain (A chain) of DT under the control of the prostate-specific antigen (PSA) promoter, the PSA promoter and enhancer, or the cytomegalovirus promoter. The data on expression of DT from the plasmid constructs demonstrate that the basal level of DT gene expression determines the toxicity. To better test the potential therapeutic efficacy of DT suicide gene therapy, we first developed a DT-resistant adenoviral packaging line (293DTR). This allowed us to manufacture a relatively high titer adenoviral vector encoding the DT-A gene under the control of the PSA promoter and enhancer (Ad5PSE-DT-A) as well as an attenuated DT-A virus (Ad5PSE-tox176). In vitro studies showed that our viral constructs preferentially kill PSA-positive prostate cancer cells in the presence of exogenous androgen (R1881). In vivo studies showed that the nu/nu mice with PSA-positive cancer cell LNCaP xenograft treated with wild-type DT-A virus had a rapid regression of tumors and survived over a year without tumor progression, whereas the attenuated DT-A virus restricted tumor growth for only 1 month. The same constructs had no significant effect on the non-PSA-secreting cell line DU-145. These encouraging results suggest that DT-A viral gene transfer may ultimately have a therapeutic role in the treatment of advanced human prostate cancer.
`Trapped Rainbow' in Graphene (2008)

We theoretically report that, at a sharp electrostatic step potential in graphene, massless Dirac fermions can obtain Goos-Hanchen-like shifts under total internal reflection. Based on these results, we study the coherent propagation of the quasiparticles along a sharp graphene \emph{p-n-p} waveguide and derive novel dispersion relations for the guided modes. Consequently, coherent graphene devices (e.g. movable mirrors, buffers and memories) induced only by the electric field effect can be proposed.
The effectiveness of loop unrolling for modulo scheduling in clustered VLIW architectures (2002)

Clustered organizations are becoming a common trend in the design of VLIW architectures. In this work we propose a novel modulo scheduling approach for such architectures. The proposed technique performs the cluster assignment and the instruction scheduling in a single pass, which is shown to be more effective than doing first the assignment and later the scheduling. We also show that loop unrolling significantly enhances the performance of the proposed scheduler especially when the communication channel among clusters is the main performance bottleneck. By selectively unrolling some loops, we can obtain the best performance with the minimum increase in code size. Performance evaluation for the SPECfp95 shows that the clustered architecture achieves about the same IPC (Instructions Per Cycle) as a unified architecture with the same resources. Moreover when the cycle time is taken into account, a 4-cluster configurations is 3.6 times faster than the unified architecture.
Geostatistical Reservoir Modeling Accounting for Precision and Scale of Seismic Data (1996)

An approach to model the detailed 3-D distribution of lithofacies and porosity constrained to seismic data is presented. The simulated annealing-based approach explicitly honors the relatively coarse vertical resolution, from a reservoir modeling perspective, and the less than perfect correlation of seismic with lithofacies proportions and effective porosity. Conventional geostatistical procedures such as co-located cokriging or the Markov-Bayes model assume that the seismic attribute has the same volumetric support as the geological modeling cells. The conventional techniques are reviewed, details of the proposed methodology are presented, and a reservoir case study is shown.
Scalable VANET content routing using hierarchical bloom filters (2014)

Abstract In this paper, we discuss scalable content‐oriented routing that enables storing, sharing, and searching data totally within the urban VANET. We introduce a scalable proactive content discovery scheme, hierarchical bloom‐filter routing (HBFR), to tackle mobility, large population, and rich content challenges of VANETs. Our simulation results show that HBFR achieves low latency and high content availability with relatively low overhead in practical VANET scenarios. In particular, HBFR improves the response time by up to 45% compared with the conventional Content Centric Networking (CCN) and reduces the traffic by up to 85% compared with timer‐based intelligent content search. HBFR suits the popular private data services the best and also achieves low response time comparable with that of flooding‐based content discovery when applying to popular public data services.Copyright © 2014 John Wiley & Sons, Ltd.
Microencapsulation Technology: A Powerful Tool for Integrating Expansion and Cryopreservation of Human Embryonic Stem Cells (2011)

The successful implementation of human embryonic stem cells (hESCs)-based technologies requires the production of relevant numbers of well-characterized cells and their efficient long-term storage. In this study, cells were microencapsulated in alginate to develop an integrated bioprocess for expansion and cryopreservation of pluripotent hESCs. Different three-dimensional (3D) culture strategies were evaluated and compared, specifically, microencapsulation of hESCs as: i) single cells, ii) aggregates and iii) immobilized on microcarriers. In order to establish a scalable bioprocess, hESC-microcapsules were cultured in stirred tank bioreactors.The combination of microencapsulation and microcarrier technology resulted in a highly efficient protocol for the production and storage of pluripotent hESCs. This strategy ensured high expansion ratios (an approximately twenty-fold increase in cell concentration) and high cell recovery yields (>70%) after cryopreservation. When compared with non-encapsulated cells, cell survival post-thawing demonstrated a three-fold improvement without compromising hESC characteristics.Microencapsulation also improved the culture of hESC aggregates by protecting cells from hydrodynamic shear stress, controlling aggregate size and maintaining cell pluripotency for two weeks.This work establishes that microencapsulation technology may prove a powerful tool for integrating the expansion and cryopreservation of pluripotent hESCs. The 3D culture strategy developed herein represents a significant breakthrough towards the implementation of hESCs in clinical and industrial applications.
Deep Active Contours (2016)

We propose a method for interactive boundary extraction which combines a deep, patch-based representation with an active contour framework. We train a class-specific convolutional neural network which predicts a vector pointing from the respective point on the evolving contour towards the closest point on the boundary of the object of interest. These predictions form a vector field which is then used for evolving the contour by the Sobolev active contour framework proposed by Sundaramoorthi et al. The resulting interactive segmentation method is very efficient in terms of required computational resources and can even be trained on comparatively small graphics cards. We evaluate the potential of the proposed method on both medical and non-medical challenge data sets, such as the STACOM data set and the PASCAL VOC 2012 data set.
Coalescence of Oil-in-Water Suspensions by Flow through Porous Media (1977)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCoalescence of Oil-in-Water Suspensions by Flow through Porous MediaLloyd A. Spielman and Yeang-Po SuCite this: Ind. Eng. Chem. Fundamen. 1977, 16, 2, 272–282Publication Date (Print):May 1, 1977Publication History Published online1 May 2002Published inissue 1 May 1977https://pubs.acs.org/doi/10.1021/i160062a018https://doi.org/10.1021/i160062a018research-articleACS PublicationsRequest reuse permissionsArticle Views406Altmetric-Citations50LEARN 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
A convenient method for O-alkylation of N-substituted tyrosines using a crown ether (1981)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA convenient method for O-alkylation of N-substituted tyrosines using a crown etherAleksander M. Kolodziejczyk and Maurice ManningCite this: J. Org. Chem. 1981, 46, 9, 1944–1946Publication Date (Print):April 1, 1981Publication History Published online1 May 2002Published inissue 1 April 1981https://pubs.acs.org/doi/10.1021/jo00322a049https://doi.org/10.1021/jo00322a049research-articleACS PublicationsRequest reuse permissionsArticle Views514Altmetric-Citations26LEARN 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
Overview of the requirements and implementations of bidirectional isolated AC-DC converters for automotive battery charging applications (2015)

This paper is divided into three main parts. In the first part, i.e. Section II, a general outline of the system level aspects regarding battery chargers (power converters) for plug-in electric vehicles (PEVs) is given. Thereby, the different charging modes of the converters, the corresponding power levels, and the infrastructural facilities are discussed. Moreover, Vehicle-to-Grid (V2G) operation by means of grid-forming, grid-feeding, and grid-supporting converter functionality is briefly explained, and the input power quality and electromagnetic compatibility requirements are summarized. In the second part, i.e. Section III, the mutually coupled indices that determine the overall performance of the system, such as power losses (efficiency), volume (power density), weight (specific power), failure rate (reliability), and costs (relative cost), are outlined. In this context, the role that wide band-gap power semiconductors (e.g. SiC, GaN) can play in order to further improve the system performance is highlighted. In the third part, i.e. Section IV, a concise overview of the possible topological implementations for the mentioned power converters is provided. The focus is on conductive, isolated AC-DC converter topologies with high AC input power quality in terms of power factor correction (PFC) and harmonic distortion, and with bidirectional power flow capability in order to facilitate V2G operation.
C3a, TNF-α and interleukin myocardial expression in a case of fatal sudden cardiac failure during clinic reactivation of systemic lupus erythematosus (2010)

Isolated myocarditis, or dilated cardiomyopathy, is a rare and usually late clinical manifestation of systemic lupus erythematosus (SLE). Increased levels of complement split products are associated with disease activity. Injury of the vascular endothelium due to complement activation and immune complexes may contribute to the vasculopathy in SLE. We present a case of sudden cardiac failure and death in a 28-year-old Caucasian man, during reactivation of SLE. To explain the sudden cardiac failure, we looked for anti-tumour necrosis factor (TNF)- proportional, variant and anti-interleukin (IL) expression in cardiac cells, and anti-complement (anti-C)3a in small cardiac vessels. The immunohistochemical examination of heart specimens revealed a strong positive reaction in cardiac myocytes for antibodies anti-TNF- proportional, variant and IL-8, and a milder positive reaction for antibodies anti-IL-15 and IL-10. A strong positive reaction of C3a in small cardiac vessels was observed in all specimens. Furthermore, the expression of CD4 and CD8 showed a strong positive reaction in pericardium and valvular endocardium, and a lesser positivity in myocardial specimens. TNF appears to have played a major proinflammatory role in this fatal case.
IFM receiver with capability of detecting simultaneous signals (1989)

Abstract A method for detecting many simultaneous signals in an IFM receiver is described. The method uses correlation lags to calculate the frequencies of the input signals. Practical considerations and performance are discussed.
Review of Eurasian Steppes. Ecological Problems and Livelihoods in a Changing World, edited by Marinus J A Werger and Marja A van Staalduinen (2012)

Werger, Marinus JA; and van Staalduinen, Marja A (editors) Eurasian Steppes. Ecological Problems and Livelihoods in a Changing World. Dordrecht, Heidelberg, New York, London: Springer; 2012. 565 pages, ISBN 978-94-007-3885-0, ISBN 978-94-007-3886-7