gebhart/patrepeval huggingface dataset:
A model and a visual query language for structured text (2002)

We present a new model to query document databases by content and structure. The main merits of the model are: it allows rich structure in the documents; the query algebra is intuitive (moreover, complemented by a visual query language) and powerful; it is efficiently implementable; it can be built on top of a traditional indexing system or even with no index at all; it is strongly oriented to user-definable relevance ranking instead of boolean logic; and it allows flexible visualization of results in terms of structure, contents and highlighting of user-defined important parts in the query.
Electropolymerized cobalt tetrakis(o-aminophenyl)porphyrin film mediated enzyme electrode for amperometric determination of glucose (1988)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectropolymerized cobalt tetrakis(o-aminophenyl)porphyrin film mediated enzyme electrode for amperometric determination of glucoseNoboru. Oyama, Takeo. Osaka, and Masaya. MizunumaCite this: Anal. Chem. 1988, 60, 22, 2534–2536Publication Date (Print):November 15, 1988Publication History Published online1 May 2002Published inissue 15 November 1988https://pubs.acs.org/doi/10.1021/ac00173a021https://doi.org/10.1021/ac00173a021research-articleACS PublicationsRequest reuse permissionsArticle Views173Altmetric-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
Lewis Acid Mediated α-Thioalkylation of Ketones (1981)

Abstract Lewis acid mediated α-alkylation of carbonyl compounds via silyl enol ethers is turning out to be a powerful synthetic method. For example, SN1 reactive alkylating agents such as tertiary and aryl activated secondary alkyl halides, which are known to undergo undesired HX-elimination with lithium enolates or enamines, react regiospecifically and chemoselectively with the less basic silyl enol ethers1. Related processes include Mukaiyamas version of the aldol condensation2 as well as the addition of silyl enol ethers to tricarbo-
Dense Reconstruction Using 3D Object Shape Priors (2013)

We propose a formulation of monocular SLAM which combines live dense reconstruction with shape priors-based 3D tracking and reconstruction. Current live dense SLAM approaches are limited to the reconstruction of visible surfaces. Moreover, most of them are based on the minimisation of a photo-consistency error, which usually makes them sensitive to specularities. In the 3D pose recovery literature, problems caused by imperfect and ambiguous image information have been dealt with by using prior shape knowledge. At the same time, the success of depth sensors has shown that combining joint image and depth information drastically increases the robustness of the classical monocular 3D tracking and 3D reconstruction approaches. In this work we link dense SLAM to 3D object pose and shape recovery. More specifically, we automatically augment our SLAM system with object specific identity, together with 6D pose and additional shape degrees of freedom for the object(s) of known class in the scene, combining image data and depth information for the pose and shape recovery. This leads to a system that allows for full scaled 3D reconstruction with the known object(s) segmented from the scene. The segmentation enhances the clarity, accuracy and completeness of the maps built by the dense SLAM system, while the dense 3D data aids the segmentation process, yielding faster and more reliable convergence than when using 2D image data alone.
Sub-wavelength diffractive optics (1998)

This report represents the completion of a three-year Laboratory-Directed Research and Development (LDRD) program to investigate sub-wavelength surface relief structures fabricated by direct-write e-beam technology as unique and very high-efficiency optical elements. A semiconductor layer with sub-wavelength sized etched openings or features can be considered as a layer with an effective index of refraction determined by the fraction of the surface filled with semiconductor relative to the fraction filled with air or other material. Such as a layer can be used to implement planar gradient-index lenses on a surface. Additionally, the nanometer-scale surface structures have diffractive properties that allow the direct manipulation of polarization and altering of the reflective properties of surfaces. With this technology a single direct-write mask and etch can be used to integrate a wide variety of optical functions into a device surface with high efficiencies; allowing for example, direct integration of polarizing optics into the surface with high efficiencies; allowing for example, direct integration of polarizing optics into the surfaces of devices, forming anti-reflection surfaces or fabricating high-efficiency, high-numerical aperture lenses, including integration inside vertical semiconductor laser cavities.
Applications and limitations of deuterium labeling methods to neutron scattering studies of polymers (1988)

Abstract Deuterium labeling techniques have been widely used to study polymer chain configuration and motion, based on the assumption that the H‐ and D‐ chains are thermodynamically identical and that the interaction parameter between them, X HD is zero. By an appropriate choice of the degree of polymerization and temperature, both critical scattering and phase separation can be made to occur, due solely to the small but finite thermodynamic differences between protonated and deuterated molecules. These experiments helped delineate the range of validity of the assumptions which had been used hitherto in neutron scattering studies of polymers. The majority of previous experiments, carried out at modest molecular weights, have been shown to be in large part unaffected by such effects.
Use of polarized light to discriminate short-path photons in a multiply scattering medium (1992)

We describe a method for discriminating short- and long-path photons transmitted through a multiply scattering medium that is based on the relationship between the polarization states of the incident and forward-scattered light. Results of Monte Carlo simulations and experiments show that if the scattering anisotropy of the scatterers is sufficiently small, absorbing barriers embedded in optically dense suspensions of polystyrene spheres can be resolved with good contrast by selectively detecting a component of the scattered-light intensity that has preserved its incident circular polarization state. The principles of operation of a polarization-modulation system capable of measuring small polarization fractions are explained. Using this system we were able to measure polarized light in a depolarized background over 1000 times as large.
Identification and molecular characterization of a transcriptional regulator from <i>Pseudomonas aeruginosa</i> PAO1 exhibiting structural and functional similarity to the FNR protein of <i>Escherichia coli</i> (1991)

A gene library of chromosomal DNA from Pseudomonas aeruginosa contained a DNA fragment which was able to restore anaerobic growth to an Escherichia coli fnr deletion mutant on glycerol/nitrate medium. The cloned gene (termed anr) was sequenced and shown to encode a protein of 244 amino acids with a calculated molecular weight of 27,129. The deduced amino acid sequence of the anr gene product showed considerable similarity to the FNR protein from E. coli. Expression of the anr gene in a T7 promoter/polymerase system identified ANR as a 31 kDa protein. Transcriptional analysis of the anr gene showed that it is monocistronic but apparently lacks the equivalent sites for negative autoregulation which have been shown to be present in the promoter region of the E. coli fnr gene. The ANR protein was shown to activate transcription of the pfl gene in E. coli in response to anaerobiosis, as well as being able to restore the activity of three anaerobically inducible enzymes. A P. aeruginosa mutant incapable of growing anaerobically with nitrate or on arginine was fully complemented by the anr gene, indicating that it probably has a function in controlling anaerobic gene expression in Pseudomonas. Further corroboration for this assumption was provided by S1 nuclease analysis of transcription of the multiple promoters of the E. coli pfl operon in P. aeruginosa. Transcription was induced by oxygen limitation and was completely ANR-dependent in both aerobic and anaerobic cells. Removal of the upstream regulatory sequence of the pfl operon, which includes the sequences required for FNR-dependent regulation in E. coli, removed ANR-dependent transcriptional control of the remaining pfl promoters, irrespective of the cellular oxygen status. These results imply that the mechanisms by which ANR and FNR regulate transcription are fundamentally similar.
Chemical generation of excited-state radicals: succinimidoyl (1979)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChemical generation of excited-state radicals: succinimidoylTimothy ClarkCite this: J. Am. Chem. Soc. 1979, 101, 26, 7746–7747Publication Date (Print):December 1, 1979Publication History Published online1 May 2002Published inissue 1 December 1979https://pubs.acs.org/doi/10.1021/ja00520a035https://doi.org/10.1021/ja00520a035research-articleACS PublicationsRequest reuse permissionsArticle Views74Altmetric-Citations10LEARN 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-AlertscloseSupporting Info (1)»Supporting Information Supporting Information Get e-Alerts
The Mars Science Laboratory <i>Curiosity</i> rover Mastcam instruments: Preflight and in‐flight calibration, validation, and data archiving (2017)

Abstract The NASA Curiosity rover Mast Camera (Mastcam) system is a pair of fixed‐focal length, multispectral, color CCD imagers mounted ~2 m above the surface on the rover's remote sensing mast, along with associated electronics and an onboard calibration target. The left Mastcam (M‐34) has a 34 mm focal length, an instantaneous field of view (IFOV) of 0.22 mrad, and a FOV of 20° × 15° over the full 1648 × 1200 pixel span of its Kodak KAI‐2020 CCD. The right Mastcam (M‐100) has a 100 mm focal length, an IFOV of 0.074 mrad, and a FOV of 6.8° × 5.1° using the same detector. The cameras are separated by 24.2 cm on the mast, allowing stereo images to be obtained at the resolution of the M‐34 camera. Each camera has an eight‐position filter wheel, enabling it to take Bayer pattern red, green, and blue (RGB) “true color” images, multispectral images in nine additional bands spanning ~400–1100 nm, and images of the Sun in two colors through neutral density‐coated filters. An associated Digital Electronics Assembly provides command and data interfaces to the rover, 8 Gb of image storage per camera, 11 bit to 8 bit companding, JPEG compression, and acquisition of high‐definition video. Here we describe the preflight and in‐flight calibration of Mastcam images, the ways that they are being archived in the NASA Planetary Data System, and the ways that calibration refinements are being developed as the investigation progresses on Mars. We also provide some examples of data sets and analyses that help to validate the accuracy and precision of the calibration.
Review article: tolevamer, a novel toxin‐binding polymer: overview of preclinical pharmacology and physicochemical properties (2006)

These preclinical results are consistent with the effectiveness and safety profile of tolevamer observed in clinical studies in patients with C. difficile-associated diarrhoea.
Towards Genoelectronics: Electrochemical Biosensing of DNA Hybridization (1999)

Innovative strategies for DNA diagnostics based on the interface of electronic and nucleic acid recognition systems are described. Particular attention is given to new routes for the direct electrical detection of hybridization events (illustrated here), and to the use of electrochemical fields for modulating DNA interactions. The new genoelectronic schemes offer great promise for large-scale genetic testing.
Tunable Bragg filters with a phase transition material defect layer (2016)

We propose an all-solid-state tunable Bragg filter with a phase transition material as the defect layer. Bragg filters based on a vanadium dioxide defect layer sandwiched between silicon dioxide/titanium dioxide Bragg gratings are experimentally demonstrated. Temperature dependent reflection spectroscopy shows the dynamic tunability and hysteresis properties of the Bragg filter. Temperature dependent Raman spectroscopy reveals the connection between the tunability and the phase transition of the vanadium dioxide defect layer. This work paves a new avenue in tunable Bragg filter designs and promises more applications by combining phase transition materials and optical cavities.
Toward realizing talking quantum movies: Synchronization of audio and visual content (2019)

With the ubiquity and primacy of image- and video-processing, a new subdiscipline ensuring a smooth transition from digital to quantum image-processing has emerged. This study proposes a framework to synchronize audio and visual content to realize talking quantum movies. This framework segments a movie into frame, audio, and time components. A multichannel representation for quantum images (MCQI) is used to encode the still images that make up movie frames. In addition, the amplitude content of the flexible representation of the quantum audio (FRQA) signal is recorded at each instant of time. The synchronization of audio and frames in the movie is accomplished through a quantum sequence of time. The feasibility of this framework is demonstrated by a simple simulation, and some possible applications are discussed.
A real-time equipment monitoring and fault detection system (2002)

In semiconductor fabrication processes, real-time equipment monitoring and fault detection become critical as most problems reveal themselves first on the equipment performance and much later on the wafer quality. The sooner we can detect the problem, the lower the production loss. The goal of this paper is to present an integrated equipment monitoring approach for a PECVD tool. The approach will include: (1) simultaneous monitoring scheme: a dartboard display of real-time data that provides an easy reading of the equipment's overall status, (2) system health index: an index that evaluates the equipment's overall health, and (3) analysis functions that include various charting functions, real-time SPC, run-to-run SPC, and other advanced SPC functions. The system has been implemented in TSMC FAB IV for testing. The preliminary results show that the proposed system is an effective tool for real-time monitoring and fault detection.
A Novel Precoder Design for MIMO Multicasting with MMSE-DFE Receivers (2014)

A novel precoding scheme is proposed for MIMO multicasting systems, using the criterion of maximizing the minimal signal-to-interference-plus- noise ratio (SINR) among multiple data streams, while considering the minimum mean-squared-error decision feedback equalizer (MMSE-DFE) at each user side. We decompose the precoding matrix into a transformation matrix multiplied by a unitary matrix, and perform the design process within two steps. In the first step, the transformation matrix is obtained by solving a convex optimization and using Gaussian randomization. In the second one, the unitary matrix is iteratively optimized by decomposing the original multiple-stream problem into several simplified dual-stream sub-problems. At each iteration, the dual-stream sub-problem is converted into a real-valued optimization problem equivalently, which can be solved by an iterative approach based on the Lozano's algorithm. Simulation results indicate that the proposed scheme achieves better performance in terms of both achievable rate and symbol error rate than the other existing schemes.
Association of Choroidal Neovascularization and Central Serous Chorioretinopathy With Optical Coherence Tomography Angiography (2015)

This study suggests that OCT alone (OCTA and coregistered OCT B-scans) features sensitivity and specificity comparable with FA for the detection of CNV in eyes with chronic CSCR.
Towards federated Web2.0 sites: the TAGMAS approach (2007)

The success of Web2.0 is draining user’s resources from the desktop to the Web. An increasing number of users are keeping their pictures at flickr, their bookmarks at del.icio.us, their documents at googleDocs and so on. There are important advantages to be gained, but this dissemination of user’s resources should go handby-hand with tooling that permits users to keep a global view of their resources regardless of where they are kept. Unfortunately, heterogeneity on API’s, tag conventions and message protocols hinders interoperability. Consequently, this work promotes a looselycoupled federated view of Web2.0 sites which powers traditional desktops with tagging and searching capabilities that expand over the desktop folders to transparently account for Web2.0 sites. This federation is achieved in a user basis: the Web2.0 sites to be integrated are those that keep resources of the user at hand. The paper introduces the current status of TAGMAS, a TAG MAnagement System that provides an interface to deal with multiple, autonomous Web2.0 sites from the desktop.
kIP: a Measured Approach to IPv6 Address Anonymization (2017)

Privacy-minded Internet service operators anonymize IPv6 addresses by truncating them to a fixed length, perhaps due to long-standing use of this technique with IPv4 and a belief that it's "good enough." We claim that simple anonymization by truncation is suspect since it does not entail privacy guarantees nor does it take into account some common address assignment practices observed today. To investigate, with standard activity logs as input, we develop a counting method to determine a lower bound on the number of active IPv6 addresses that are simultaneously assigned, such as those of clients that access World-Wide Web services. In many instances, we find that these empirical measurements offer no evidence that truncating IPv6 addresses to a fixed number of bits, e.g., 48 in common practice, protects individuals' privacy. To remedy this problem, we propose kIP anonymization, an aggregation method that ensures a certain level of address privacy. Our method adaptively determines variable truncation lengths using parameter k, the desired number of active (rather than merely potential) addresses, e.g., 32 or 256, that can not be distinguished from each other once anonymized. We describe our implementation and present first results of its application to millions of real IPv6 client addresses active over a week's time, demonstrating both feasibility at large scale and ability to automatically adapt to each network's address assignment practice and synthesize a set of anonymous aggregates (prefixes), each of which is guaranteed to cover (contain) at least k of the active addresses. Each address is anonymized by truncating it to the length of its longest matching prefix in that set.
[Comparative study on risk factors and family history of familial and sporadic nasopharyngeal carcinoma patients]. (2009)

Familial nasopharyngeal carcinoma was 9.64% in the observed subjects. In the familial nasopharyngeal carcinoma, the time interval at diagnosis was shorter between proband and siblings as compared with parents. Most of the patients were at advanced stage. So, we recommend the first-degree relatives of nasopharyngeal carcinoma patients, especially siblings, should be screened regularly according to the specific conditions.
Artificial Neural Networks Applied to Image Steganography (2016)

This paper presents a technique for transmitting information efficiently and securely, hiding confidential messages on seemingly innocent messages using steganography. The insertion technique in the least significant bit is used to insert images into digital pictures or other secret watermark. Artificial Neural Networks are used in the process of withdrawal of encrypted information acting as keys that determine the existence of hidden information.
Latency Based Dynamic Grouping Aware Cloud Scheduling (2012)

In a multi-cloud environment, distributed application may need to have minimal inter-node latency to improve their performance. In this paper, We propose a model for the grouping of nodes with respect to network latency. The application scheduling is done on the basis of network latency. This model is a part of our proposed Cloud Scheduler module, which helps the scheduler in scheduling decisions on the basis of different criteria. Network latency and resultant node grouping on the basis of this latency is one of those criteria. The main essence of the paper is that our proposed latency grouping algorithm not only have no additional network traffic for algorithm computation but also works well with incomplete latency information and performs intelligent grouping on the basis of latency. This paper addresses an important problem in cloud computing, which is locating communicating virtual machines for minimum latency between them and group them with respect to inter-node latency.
Energy savings through thermostat setback with residential heat pumps (1978)

The effects of thermostat setback on energy consumption by residential heat pumps were studied using a computer simulation based on laboratory and field data. A fixed reduction in room thermostat setpoints was shown to be a very effective and essentially foolproof means for reducing energy consumption with a residential heat pump system. For the severe northern climate (Minneapolis) chosen for the present study, approximately 8% savings in seasonal input energy (kWh) can be achieved with a typical system for each 1/sup 0/C setpoint reduction (4% per /sup 0/F). It was found that nighttime setbacks of 5/sup 0/F or more can lead to increased energy consumption by the heat pump, high morning power demand, and poor indoor comfort; therefore, the general use of thermostat setback with residential air-source heat pump systems is not recommended. (LCL)