gebhart/patrepeval huggingface dataset:
A stereo approach that handles the matting problem via image warping (2009)

We propose an algorithm that simultaneously extracts disparities and alpha matting information given a stereo image pair. Our method divides the reference image into a set of overlapping, partially transparent color segments. Each segment pixel is assigned an alpha value and color. The disparity inside the segment is modeled via a plane. The goodness of alphas, colors and disparity planes is measured by a new energy function. Its basic idea is to use the three parameters for generating artificial views representing the left and right images. If alphas, colors and disparity planes are correct, these artificial images should be very similar to the real ones. For generating the artificial right view, we warp all pixels of the left into the geometry of the right image using the disparity planes. We introduce the assumption of constant solidity in order to correctly model how pixels' alpha values are affected by the warping operation. Experimental results on the Middlebury set show that our algorithm gives good results in comparison to the state-of-the-art in stereo matching.
Mapping of linear and circular forms of mouse mammary tumor virus DNA with restriction endonucleases: evidence for a large specific deletion occurring at high frequency during circularization. (1978)

Rat hepatoma cells infected with mouse mammary tumor virus contain multiple forms of unintegrated viral DNA when grown in the presence of glucocorticoids. Using the DNA transfer procedure of Southern, we have prepared restriction endonuclease fragment maps of these forms of viral DNA. The maps indicate that: (i) the major species of viral DNA is a linear molecule of 5.9 X 10(6) Mr located in the cytoplasm; (ii) the nuclei contain covalently closed circular viral DNA of two distinct sizes (5.1 X 10(6) and 5.9 X 10(6) Mr) in addition to linear molecules (5.9 X 10(6) Mr); (iii) the linear molecule has specific termini; (iv) there is extensive homology between regions at or near termini of the linear molecule; (v) the predominant form of circular DNA lacks 1.2 kilobase pairs present in both the larger circular molecule and the linear molecule; and (vi) the sequences deleted from the majority of the circular DNA molecules are located at the ends of the linear DNA that are joined during circularization.
Synthesis and Properties of Highly Sensitive Ether Ring Fused <i>O</i>-Acyloxime Esters as Photoradical Initiator (2018)

High sensitivity of O-acyloxime ester, which is widely used as a photo radical polymerization initiator for color resist, was investigated. Introduction of an ether ring structure to the periphery of oxime was aimed at increasing rigidity of dye scaffold. As a result, the absorption spectrum at i-line (365 nm) became sharp, the absorption efficiency was greatly improved, and the sensitivity was increased by about five times as much as conventional linear type oximes by improving the radical generation quantum yield.
Tocotrienols activity in MCF‐7 breast cancer cells: Involvement of ERβ signal transduction (2010)

The term Vitamin E is utilized to describe eight molecules, subdivided into two groups, tocopherols and tocotrienols (TTs). It has been shown that specific TTs affect the growth of several lines of tumour cells, and that this activity is not shared by tocopherols. In agreement with these observations, a TTs-rich fraction from palm oil (PTRF) was reported to inhibit proliferation and induce apoptosis in several cancer cells. However, the molecular mechanism involved in TTs activity is still unclear. We have recently proposed that TTs pro-apoptotic activity involves estrogen receptor beta (ERbeta) signalling. In this study, we report that, in MCF-7 breast cancer cell, expressing both ERalpha and ERbeta, PTRF treatment increases ERbeta nuclear translocation, as demonstrated by immunofluorescence experiments and significantly inhibits ERalpha expression (-458.91-fold of change) and complete disappearing of the protein from the nucleus. Moreover, PTRF treatment induces ER-dependent genes expression (macrophage inhibitory cytokine-1, early growth response-1 and Cathepsin D) which is inhibited by the ER inhibitor, ICI 182.780, and induces DNA fragmentation. Finally, cDNA-array experiments suggest that the activation of specific pathways in cells treated with gamma-TT with respect to alpha-TT. Our data suggest a novel potential molecular mechanism for TTs activity.
Design of ultrahigh dielectric constant uHDC helmet for 3T and its intrinsic resonance modes (2023)

This investigation characterize the intrinsic resonance modes (IRM) in a helmet made from utrahigh dielectric constant (uHDC) material and their interactions with RF field produced by conventional array coils using numerical simulation. The RF field of the three lower order modes, TE, TM1 and TM2, were investigated. TM1 mode produces uniform H-field in the transverse plane inside the helmet similar to that of a birdcage coil. TM2 mode produces a strong RF field but with a large gradient. Understanding of the IRMs of large uHDC structures such as helmets provides theoretical foundation for wider applications of uHDC materials RF engineering.
Abstract C021: Validation of the interaction between a candidate compound and the intended drug target by a phenotypic rescue approach (2019)

Abstract New targets for cancer treatment frequently emerge in literature, but the thorough target validation required to consider these targets for a drug discovery program is often lacking. In pharmacological or genetic perturbation studies using complex biological assays, undesired off-target effects cannot be easily distinguished from the intended mode of action at the desired target. This is especially evident in cancer drug development where it is important to discriminate on-target effects on cell viability from off-target effects resulting in non-specific loss of cellular fitness. Neglecting the possibility of being deceived by off-target effects can have tremendous scientific and financial impact on a drug discovery program. Ideally, confidence in a preclinical drug target and a modulating compound is boosted in an early stage by more extensive analysis and validation of the actual drug-target relationship. Rescue of a disease-relevant phenotype by genetic restoration of a target mutation is a gold standard approach in drug discovery by which target validation can be achieved. We aim to follow this approach targeting the BRAF V600E mutation in a number of well described melanoma lines as well as the MAP2K1 Q56P mutation in the non-small cell lung cancer cell line H1437. Target validation for both BRAF and MAP2K1 will be addressed by assessing viability, phenotypic changes and sensitivity to compound modulation upon CRISPR/Cas9 repair of the target mutation or by exogenous re-expression of the wild type variant. Compounds tested will be Vemurafenib for BRAF and Trametinib for MAP2K1. Further investigation into target validity will be done using a physiologically relevant 3D spheroid based co-culture system. Mimicking the tumor microenvironment increases the knowledge about “drug-ability” of a target and sustainability of the target modulation at an early time point in the development process. Such early in-depth validation of the relationship between a compound and the drug target is vital to mitigate the risk of failure at later steps of drug development. Citation Format: Laure Grandmoursel, Lieke Geerts, Geraldine Servant, Miranda van der Ham, Armin Maier, Jamil Aarbiou, Marijn Vlaming, Jeroen DeGroot, Julia Schuler, Ian Waddell, Anne-Marie Zuurmond. Validation of the interaction between a candidate compound and the intended drug target by a phenotypic rescue approach [abstract]. In: Proceedings of the AACR-NCI-EORTC International Conference on Molecular Targets and Cancer Therapeutics; 2019 Oct 26-30; Boston, MA. Philadelphia (PA): AACR; Mol Cancer Ther 2019;18(12 Suppl):Abstract nr C021. doi:10.1158/1535-7163.TARG-19-C021
Technique for the Rapid Characterization of Parametric Distributions (2009)

We present a technique for fast characterization of the statistical mean and sigma of parametric variations. The technique uses a scan chain to sequentially cycle through a device array, creating a periodic waveform that can be directly measured using a multimeter. The dc and root-mean square values of the waveform directly give the mean and sigma of the parameter distribution. We show the technique is sufficiently general and can be applied to a wide range of characterization strategies. A V <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">TH</sub> characterization array was implemented in a 65-nm bulk CMOS process where we compare traditional individual device measurements for calculating statistics with the direct mean and sigma measurement technique using the multimeter.
Characterization of Mexican Strains of Avian Infectious Bronchitis Isolated during 1997 (2000)

Ten infectious bronchitis virus (IBV) isolates were recovered from broiler chickens in the states of Queretaro and Guanajuato in Mexico. The viruses were isolated from trachea, lung, kidney, and cecal tonsils of birds that showed respiratory signs in spite of vaccination with Massachusetts (Mass) and Connecticut strains of IBV. Each isolate was identified by an accession number from 1 to 10. Six of the isolates were neutralized by Mass monoclonal antibodies, whereas the other four were not. In addition, these four isolates did not produce lesions in embryos in the first five to seven passes. These four isolates were further characterized by the reverse transcriptase-polymerase chain reaction and restriction fragment length polymorphism techniques. The electrophoretic patterns for the four isolates were identical but were different from other known IBV isolates.
Weighted prediction for HEVC (2012)

HEVC is the new video coding standard developed in a joint effort (JCT-VC) by ISO MPEG and ITU-T VCEG. As other state-of-the-art block-based inter-prediction codec, it is very sensitive to illumination variations in-between frames. To cope with this limitation, the weighted prediction (WP) tool has been proposed. A comparison of the performance of WP in HEVC and MPEG-4 AVC/H.264 is carried out. The efficiency of WP is very dependent on the quality of the estimated WP parameters. The different stages of state-of-art WP parameters estimators are discussed and a new algorithm is proposed. It is based on histogram matching with global motion compensation. Several options are evaluated and comparison is made with other existing methods.
Seeing-Is-Believing: using camera phones for human-verifiable authentication (2009)

Current mechanisms for authenticating communication between devices that share no prior context are inconvenient for ordinary users, without the assistance of a trusted authority. We present and analyse Seeing-Is-Believing (SiB), a system that utilises 2D barcodes and camera-phones to implement a visual channel for authentication and demonstrative identification of devices. We apply this visual channel to several problems in computer security, including authenticated key exchange between devices that share no prior context, establishment of the identity of a TCG-compliant computing platform, and secure device configuration in the context of a smart home.
RLS Channel Estimation with Adaptive Forgetting Factor for DS-CDMA Frequency-Domain Equalization (2009)

Frequency-domain equalization (FDE) based on the minimum mean square error (MMSE) criterion can increase the downlink bit error rate (BER) performance of DS-CDMA beyond that possible with conventional rake combining in a frequency-selective fading channel. FDE requires accurate channel estimation. Recently, we proposed a pilot-assisted channel estimation (CE) based on the MMSE criterion. Using MMSE-CE, the channel estimation accuracy is almost insensitive to the pilot chip sequence, and a good BER performance is achieved. In this paper, we propose a channel estimation scheme using one-tap recursive least square (RLS) algorithm, where the forgetting factor is adapted to the changing channel condition by the least mean square (LMS)algorithm, for DS-CDMA with FDE. We evaluate the BER performance using RLS-CE with adaptive forgetting factor in a frequency-selective fast Rayleigh fading channel by computer simulation.
Interpolation with migration operators (2002)

PreviousNext No AccessSEG Technical Program Expanded Abstracts 2002Interpolation with migration operatorsAuthors: Daniel TradDaniel TradUBChttps://doi.org/10.1190/1.1817137 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Permalink: https://doi.org/10.1190/1.1817137FiguresReferencesRelatedDetailsCited ByFast and robust deblending using Apex Shifted Radon transformDaniel Trad, Risto Siliqi, Gordon Poole, and Jean-Luc Boelle25 October 2012Interpolation of near offsets using multiples and prediction-error filtersWilliam Curry and Guojian Shan22 December 2010 | GEOPHYSICS, Vol. 75, No. 6Attenuation of specular and diffracted 2D multiples in image spaceGabriel Alvarez, Biondo Biondi, and Antoine Guitton14 August 2007 | GEOPHYSICS, Vol. 72, No. 5Diffracted multiple attenuation using wavelet filter in the focused domainZhou Yu, Nurul Kabir, and Ken Matson7 December 2005Sparse inversion techniques for 3D SRME: frequency or time domain?Michel Schonewille, Rob Hegge, and Roald van Borselen3 January 2005Interpolation and multiple attenuation with migration operatorsDaniel Trad20 November 2003 | GEOPHYSICS, Vol. 68, No. 6 SEG Technical Program Expanded Abstracts 2002ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2002 Pages: 2478 publication data© 2002 Copyright © 2002 Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished: 03 Jan 2005 CITATION INFORMATION Daniel Trad, (2002), "Interpolation with migration operators," SEG Technical Program Expanded Abstracts : 2174-2177. https://doi.org/10.1190/1.1817137 Plain-Language Summary PDF DownloadLoading ...
Direct wavefront sensing in adaptive optical microscopy using backscattered light (2013)

Adaptive optics has been used to compensate the detrimental effects of aberrations in a range of high-resolution microscopes. We investigate how backscattered laser illumination can be used as the source for direct wavefront sensing using a pinhole-filtered Shack-Hartmann wavefront sensor. It is found that the sensor produces linear response to input aberrations for a given specimen. The gradient of this response is dependent upon experimental configuration and specimen structure. Cross sensitivity between modes is also observed. The double pass nature of the microscope system leads in general to lower sensitivity to odd-symmetry aberration modes. The results show that there is potential for use of this type of wavefront sensing in microscopes.
Diamond nanophotonics and applications in quantum science and technology (2012)

Abstract Diamond nanophotonics have evolved tremendously from the study of color centers in bulk single crystals and nanocrystals to their characterization in nanostructured environments. This development was facilitated by the ability to generate monolithic, sophisticated nanodevices in high quality single crystal diamond. Here, we present some recent contributions to the field of diamond nanophotonics: increase in single photon collection from nitrogen vacancy (NV) centers embedded in diamond nanowires, broadband spontaneous emission enhancement of single NV centers in plasmonic resonators, and coupling of single NV centers to planar resonators on‐chip. magnified image
Palladium-catalyzed reactions in the synthesis of 3- and 4-substituted indoles. 2. Total synthesis of the N-acetyl methyl ester of (.+-.)-clavicipitic acids (1987)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPalladium-catalyzed reactions in the synthesis of 3- and 4-substituted indoles. 2. Total synthesis of the N-acetyl methyl ester of (.+-.)-clavicipitic acidsPeter J. Harrington, Louis S. Hegedus, and Keith F. McDanielCite this: J. Am. Chem. Soc. 1987, 109, 14, 4335–4338Publication Date (Print):July 1, 1987Publication History Published online1 May 2002Published inissue 1 July 1987https://pubs.acs.org/doi/10.1021/ja00248a032https://doi.org/10.1021/ja00248a032research-articleACS PublicationsRequest reuse permissionsArticle Views1681Altmetric-Citations176LEARN 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
Reinvestigation of the Hanle Effect for the NO A 2Σ+ State (1971)

The coincidence of the CdII 2144.38-Å line with the R1(25 / 2) and the RQ21 (25 / 2) lines of the (1, 0) band of the NO γ system A 2Σ+−X 2Π is used to perform a measurement of the molecular Hanle effect on the (υ′ = 1, N′ = 13) vibration-rotation level of the excited state. A linear fit to the pressure-broadening data yields an intercept of 4.25 ± 0.3 G for the zero-pressure linewidth and a slope of 16.3 ± 0.2 mG/mtorr. This is in disagreement with the value of 5.5 ± 0.5 G reported by Gouedard and Lehmann for the half-width at half-maximum. If we assume a g value calculated for Hund's case (b) coupling, the radiative lifetime calculated from our half-width at half-maximum is in good agreement with the work of Jeunehomme. The previous results of Crosley and Zare are shown to be spurious because of mercury vapor contamination.
A comparison of serum prolactin concentrations after administration of paliperidone extended-release and risperidone tablets in patients with schizophrenia (2009)

Increases in serum prolactin concentrations after administration of risperidone have been attributed, by some, to the availability of paliperidone in plasma. This double-blind, randomized, parallel-group study in patients with schizophrenia compared serum prolactin concentrations following the administration of paliperidone extended-release and risperidone immediate-release tablets. At steady state, the doses administered resulted in a similar exposure to paliperidone and the pharmacologically active fraction of risperidone (i.e. risperidone + paliperidone), respectively. Eligible patients were randomized to either paliperidone extended-release 12 mg on days 1-6 or risperidone immediate-release 2 mg on day 1 and 4 mg on days 2-6. Mean serum prolactin concentrations increased on day 1 (C(max): 71.8 ng/ml and 89.7 ng/ml reached at 6.5 hours and 2.6 hours for paliperidone extended-release and risperidone immediate-release, respectively). On day 6, serum prolactin concentration-time profiles were similar for both treatments, with overall higher serum prolactin concentrations than on day 1 (AUC(0-24 h): 1389 and 842 ng h/ml, and 1306 and 741 ng.h/ml on day 6 and day 1 for paliperidone extended-release and risperidone immediate-release, respectively). These results indicate that paliperidone extended-release 12 mg and risperidone immediate-release 4 mg, administered over a period of 6 days, lead to similar elevations in serum prolactin concentrations.
Deploying diffserv at the network edge for tight SLA, part 2 (2004)

In the second of a two-part series, the authors review industry best practices for designing, validating, deploying, and operating IP-based services at the network edge with tight service-level agreements (SLAs). Specifically, they present a case study that shows how Diffserv can be deployed to achieve these SLAs.
Sonochemical preparation of alumina-spheres loaded with Pd nanoparticles for 2-butyne-1,4-diol semi-hydrogenation in a continuous flow microwave reactor (2018)

A novel protocol for microwave-assisted alkyne semi-hydrogenation under heterogeneous catalysis in a continuous flow reactor is reported herein. This challenging task has been accomplished using a multifaceted strategy which includes the ultrasound-assisted preparation of Pd nanoparticles (average <i>Ø</i> 3.0 ± 0.5 nm) that were synthesized on the μ-metric pores of sintered alumina spheres (<i>Ø</i> 0.8 mm) and a continuous flow reaction under H<sub>2</sub> (flow rate 7.5 mL min<sup>-1</sup>) in a microwave reactor (counter-pressure 4.5 bar). The semi-hydrogenation of 2-butyne-1,4-diol in ethanol was chosen as a model reaction for the purposes of optimization. The high catalyst efficiency of the process, in spite of the low Pd loading (Pd content 111.15 mg kg<sup>-1</sup> from ICP-MS), is due to the pivotal role of ultrasound in generating a regular distribution of Pd nanoparticles across the entire support surface. Ultrasound promotes the nucleation, rather than the growth, of crystalline Pd nanoparticles and does so within a particularly narrow Gaussian size distribution. High conversion (>90.5%) and selectivity to (<i>Z</i>)-2-butene-1,4-diol (95.20%) have been achieved at an alkyne solution flow rate of 10 mL min<sup>-1</sup>. The lead-free, alumina-stabilized Pd catalyst was fully characterized by TEM, HR-TEM, EDX, IR, XRPD and AAS. Highly dispersed Pd nanoparticles have proven themselves to be stable under the reaction conditions employed. The application of the method is subject to the dielectric properties of substrates and solvents, and is therefore hardly applicable to apolar alkynes. Considering the small volume of the reaction chamber, microwave-assisted flow hydrogenation has proven itself to be a safe procedure and one that is suitable for further scaling up to industrial application.
StrokeStyles: Stroke-based Segmentation and Stylization of Fonts (2022)

We develop a method to automatically segment a font’s glyphs into a set of overlapping and intersecting strokes with the aim of generating artistic stylizations. The segmentation method relies on a geometric analysis of the glyph’s outline, its interior, and the surrounding areas and is grounded in perceptually informed principles and measures. Our method does not require training data or templates and applies to glyphs in a large variety of input languages, writing systems, and styles. It uses the medial axis, curvilinear shape features that specify convex and concave outline parts, links that connect concavities, and seven junction types. We show that the resulting decomposition in strokes can be used to create variations, stylizations, and animations in different artistic or design-oriented styles while remaining recognizably similar to the input font.
The soluble terminal complement complex (SC5b-9) up-regulates osteoprotegerin expression and release by endothelial cells: implications in rheumatoid arthritis (2008)

Our findings demonstrate that SC5b-9 induces OPG production by endothelial cells and we propose that the SC5b-9-mediated up-regulation of OPG may be an important mechanism whereby complement contributes in promoting and/or enhancing the inflammation in RA.