gebhart/patrepeval huggingface dataset:
Reactions of phosphorus compounds. XIX. Reactions of 3-(o-formylphenoxy)propyltriphenylphosphonium bromide and 3-(p-formylphenoxy)propyltriphenylphosphonium bromide (1969)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTReactions of phosphorus compounds. XIX. Reactions of 3-(o-formylphenoxy)propyltriphenylphosphonium bromide and 3-(p-formylphenoxy)propyltriphenylphosphonium bromideEdward E. Schweizer, Carl J. Berninger, Dale M. Crouse, Roger A. Davis, and Rosemary S. LogothetisCite this: J. Org. Chem. 1969, 34, 1, 207–212Publication Date (Print):January 1, 1969Publication History Published online1 May 2002Published inissue 1 January 1969https://pubs.acs.org/doi/10.1021/jo00838a045https://doi.org/10.1021/jo00838a045research-articleACS PublicationsRequest reuse permissionsArticle Views191Altmetric-Citations14LEARN 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
Immobilized enzyme–single-wall carbon nanotube composites for amperometric glucose detection at a very low applied potential (2008)

The behaviour of support electrodes modified with randomly dispersed single-wall carbon nanotube meshes containing adsorbed glucose oxidase with respect to amperometric glucose detection at a low potential is demonstrated.
3D spatial layout extraction of indoor images using RGB-D data (2013)

In this paper we present a new method for 3d spatial layout extraction of indoor images. First, we get room orientation and major planes by using color and depth data. Then, we find potential wall planes that form the room boundaries and evaluate them with geometric room hypothesises. In the experiments with dataset which is collected using Microsoft Kinect sensor, we observe that our approach is successful to extract room wall surfaces and corner edges. The experimental results show that the proposed method can improve the performance of image analysis stages by decreasing the complexity of image and the problem space.
The k-traveling repairman problem (2003)

We consider the k-traveling repairman problem, a generalization of the metric traveling repairman problem, also known as the minimum latency problem, to multiple repairmen. We give an 8.497α-approximation algorithm for this generalization, where α denotes the best achievable approximation factor for the problem of finding the least cost rooted tree spanning i vertices (i-MST) problem. This can be compared with the best known approximation algorithm for the case k = 1, which is 3.59α. We are aware of no previous work on the approximability of the present problem.In addition, we give a simple proof of the 3.59αapproximation result which can be extended to the case of multiple repairmen.
UFLS program to ensure stable island operation (2005)

This work highlights an introduction of UFLS (Under Frequency Load Shedding) program TEPCO (The Tokyo Electric Power Company, Inc.) has applied for more than 20 years and our experiences of dynamic simulation to determine the UFLS settings. The study concluded that the island separated from main grid where load - generation imbalance is greater than 30% can be saved by our unique UFLS scheme. Coordination with UFLS settings and over-excitation protection are critical to keep secure system performance.
Aesthetic Facial Plastic Surgery (2000)

Aesthetic facial plastic surgery , Aesthetic facial plastic surgery , کتابخانه دیجیتال جندی شاپور اهواز
Auto-Redox Reaction:  Tin(II) Chloride-Mediated One-Step Reductive Cyclization Leading to the Synthesis of Novel Biheterocyclic 5,6-Dihydro-quinazolino[4,3-<i>b</i>]quinazolin-8-ones with Three-Point Diversity (2005)

[reaction: see text] A tin(II) chloride-mediated short, efficient, and practical regioselective synthesis of biheterocyclic 5,6-dihydro-quinazolino[4,3-b]quinazolin-8-ones with three-point diversity is reported. A one-step reductive transformation of 2-(2-nitrophenyl)-3H-quinazolin-4-one in various alcohols furnished the desired tetracyclic product in good yields with high purity.
4-Oxo-2,3,5,6-tetrafluorocyclohexa-2,5-dienylidene—A Highly Electrophilic Triplet Carbene (2000)

The 4-oxocyclohexa-2,5-dienylidenes are an interesting class of highly electrophilic carbenes. We investigated the reactivity of the 2,3,5,6-tetrafluorinated and -tetrachlorinated derivatives 1b and 1c with small molecules under conditions of matrix isolation. The reactions with molecular oxygen and with carbon monoxide produce the expected carbonyl O-oxides and ketenes, respectively. As a result of the extreme electrophilicity of 1b and c both carbenes insert with no or very small activation barriers into H2 or the CH bonds of hydrocarbons. Obviously, spin restrictions for these formally spin-forbidden reactions do not result in substantial thermal activation barriers.
A Ring Transducer System for Medical (2006)

An ultrasonic ring transducer system has been developed for experimental studies of scattering and imaging. The transducer consists of 2048 rectangular elements with a 2.5-MHz center frequency, a 67% -6 dB bandwidth, and a 0.23-mm pitch arranged in a 150-mm-diameter ring with a 25-mm elevation. At the center frequency, the element size is 0.30lambda x 42lambda and the pitch is 0.38lambda. The system has 128 parallel transmit channels, 16 parallel receive channels, a 2048:128 transmit multiplexer, a 2048:16 receive multiplexer, independently programmable transmit waveforms with 8-bit resolution, and receive amplifiers with time variable gain independently programmable over a 40-dB range. Receive signals are sampled at 20 MHz with 12-bit resolution. Arbitrary transmit and receive apertures can be synthesized. Calibration software minimizes system nonidealities caused by noncircularity of the ring and element-to-element response differences. Application software enables the system to be used by specification of high-level parameters in control files from which low-level hardware-dependent parameters are derived by specialized code. Use of the system is illustrated by producing focused and steered beams, synthesizing a spatially limited plane wave, measuring angular scattering, and forming b-scan images.
Pattern recognition in capillary electrophoresis data using dynamic programming in the wavelet domain (2008)

A novel approach for CE data analysis based on pattern recognition techniques in the wavelet domain is presented. Low-resolution, denoised electropherograms are obtained by applying several preprocessing algorithms including denoising, baseline correction, and detection of the region of interest in the wavelet domain. The resultant signals are mapped into character sequences using first derivative information and multilevel peak height quantization. Next, a local alignment algorithm is applied on the coded sequences for peak pattern recognition. We also propose 2-D and 3-D representations of the found patterns for fast visual evaluation of the variability of chemical substances concentration in the analyzed samples. The proposed approach is tested on the analysis of intracerebral microdialysate data obtained by CE and LIF detection, achieving a correct detection rate of about 85% with a processing time of less than 0.3 s per 25,000-point electropherogram. Using a local alignment algorithm on low-resolution denoised electropherograms might have a great impact on high-throughput CE since the proposed methodology will substitute automatic fast pattern recognition analysis for slow, human based time-consuming visual pattern recognition methods.
Different Enzyme Cocktail Conditions Successfully Establish Primary Brain Tumor Cell Line Derived from Pilomyxoid Astrocytoma Patient (2015)

Background and Objective : Pediatric brain tumor is the second most common cancer after leukemia. Multidrug resistance is a problematic issue worldwide resulting in poor prognosis. Molecular and biological research on cancer cells is essentially required to understand the nature of cancer cells but the most effectiveness of different enzyme cocktail conditions for primary cell line establishment has not been conclusive. This study tests the hypothesis that different enzyme cocktail conditions differently affect the quality of cell line establishment.   Materials and Methods : Primary cell line establishment of pilomyxoid astrocytoma tissues was performed using 7 different enzyme cocktail conditions (C: collagenase, H: hyaluronidase, D: DNase I, C+D: collagenase + DNase I, C+H: collagenase + hyaluronidase, D+H: DNase I + hyaluronidase, and C+D+H: collagenase + DNase I + hyaluronidase) for cell dissociation. To compare the effectiveness of 7 enzyme cocktail conditions, a degree of cell dissociation, clump cell size, percentage of live cells, cell proliferation rate and time of 80% cell confluency from each condition were investigated. Results : All of the 7 enzyme cocktail conditions provided similarly effective cell dissociation. All conditions displayed a high percentage of live cells after dissociation, ranging from 80-95%. Although, most of studied conditions could proliferate to reach 1.5x10 5 cells within 96 hours after seeding. D, H and C+D conditions could not proliferate to reach the expected number within 120 hours. However, all conditions effectively grew to produce 80% cell confluency within 120 hours. Conclusion : The present data indicate that in primary cell line establishment of brain pilomyxoid astrocytoma, different standard enzyme cocktail conditions similarly provide the effectiveness of cell line establishment.
The concept of POSER (Plankton Observation with Simultaneous Enclosures in Rosfjorden) (1983)

Enclosures with diameters of 0.75 and 1.0 m and depths to 40 m were used to investigate the phytoplankton spring bloom in southern Norway. Development of natural plankton populations was analyzed in parallel experiments supplemented by monocultures of the main phytoplankton species and in pollution experiments using mercury and Ekofisk oil. A brief account is presented of preinvestigations and enclosure design, and the objectives of POSER are outlined.
Innovation IGCT main drives (2003)

The paper introduces the new IGCT drives which feature three-level NPC full regenerative power converters-the initial 3300 V product is rated up to 10 MVA. The drives utilize IGCT devices-new hard driven GTOs achieving unprecedented switching performance and effective PWM carrier frequencies up to 1 kHz. The converters use diodes formulated for soft recovery and efficient clamp snubbers to allow commutation of up to 4000 A. Under development is a 6600 V drive employing series connected IGCT elements to achieve up to a 20 MVA rating. These high performance drives, targeted at heavy-duty rolling mill applications, employ a DSP based three-level space vector modulation algorithm with active charge balance neutral point control. The drive system includes a high bandwidth feed forward synchronous motor control algorithm achieving unprecedented torque performance at these power levels. The PWM load converter is capable of achieving output frequencies up to 75 Hz. A mill resonance compensation algorithm has been developed to take advantage of the available torque response for mill stand control. The IGCT PWM source converter technology eliminates the need for the expensive VAr compensation and harmonic filtering required by cycloconverter main drives. The source converter controls feature synchronous reference frame current regulators that maintain a nominal unity power factor grid interface. The controls offer the opportunity to fix mill power quality issues by adding features such as VAr compensation, harmonic optimization, active damping of grid resonances, and flicker control.
737. The use of the Spekker photoelectric absorptiometer for the determination of pH (1952)

T. B. Smith, C. A. White, P. Woodward and P. A. H. Wyatt, J. Chem. Soc., 1952, 3848 DOI: 10.1039/JR9520003848
A polynomial-time algorithm for statistical machine translation (1996)

We introduce a polynomial-time algorithm for statistical machine translation. This algorithm can be used in place of the expensive, slow best-first search strategies in current statistical translation architectures. The approach employs the stochastic bracketing transduction grammar (SBTG) model we recently introduced to replace earlier word alignment channel models, while retaining a bigram language model. The new algorithm in our experience yields major speed improvement with no significant loss of accuracy.
From p63 to p53 across p73 (2001)

Most genes are members of a family. It is generally believed that a gene family derives from an ancestral gene by duplication and divergence. The tumor suppressor p53 was a striking exception to this established rule. However, two new p53 homologs, p63 and p73, have recently been described [1-6]. At the sequence level, p63 and p73 are more similar to each other than each is to p53, suggesting the possibility that the ancestral gene is a gene resembling p63/p73, while p53 is phylogenetically younger [1,2].The complexity of the family has also been enriched by the alternatively spliced forms of p63 and p73, which give rise to a complex network of proteins involved in the control of cell proliferation, apoptosis and development [1,2,4,7-9]. In this review we will mainly focus on similarities and differences as well as relationships among p63, p73 and p53.
Ultrashort pulse reflection from fiber gratings: a numerical investigation (1997)

We consider the linear reflection of ultrashort broadband pulses by uniform and nonuniform narrowband fiber gratings. We examine the effects of grating characteristics, including peak reflectivity, bandwidth, phase response (dispersion and chirp), and apodization on the reflection of such pulses from various gratings. A symmetric transform-limited 1-ps Gaussian pulse is assumed as the ultrashort broadband input to the gratings; the reflected pulses take on significantly different shapes and vary in duration. The prominent features observed are qualitatively explained in order to gain physical insight into the nature of the ultrashort pulse response and corresponding interaction. The results of this study indicate that there is the potential for a new class of applications, including temporal pulse shaping and novel devices for optical communications systems, by combining ultrashort broadband pulses with narrowband fiber gratings.
Magnetic microactuation of polysilicon flexure structures (1995)

A microactuator technology that combines magnetic thin films with polysilicon flexural structures is described. Devices are constructed in a batch-fabrication process that combines electroplating with conventional lithography, materials, and equipment. A microactuator consisting of a 400/spl times/(47-40)/spl times/7 /spl mu/m/sup 3/ rectangular plate of NiFe attached to a 400/spl times/(0.9-1.4)/spl times/2.25 /spl mu/m/sup 3/ polysilicon cantilever beam has been displaced over 1.2 mm, rotated over 180/spl deg/, and actuated with over 0.185 nNm of torque. The microactuator is capable of motion both in and out of the wafer plane and has been operated in a conductive fluid environment. Theoretical expressions for the displacement and torque are developed and compared to experimental results.
Item recommendation on monotonic behavior chains (2018)

'Explicit' and 'implicit' feedback in recommender systems have been studied for many years, as two relatively isolated areas. However many real-world systems involve a spectrum of both implicit and explicit signals, ranging from clicks and purchases, to ratings and reviews. A natural question is whether implicit signals (which are dense but noisy) might help to predict explicit signals (which are sparse but reliable), or vice versa. Thus in this paper, we propose an item recommendation framework which jointly models this full spectrum of interactions. Our main observation is that in many settings, feedback signals exhibit monotonic dependency structures, i.e., any signal necessarily implies the presence of a weaker (or more implicit) signal (a 'review' action implies a 'purchase' action, which implies a 'click' action, etc.). We refer to these structures as 'monotonic behavior chains,' for which we develop new algorithms that exploit these dependencies. Using several new and existing datasets that exhibit a variety of feedback types, we demonstrate the quantitative performance of our approaches. We also perform qualitative analysis to uncover the relationships between different stages of implicit vs. explicit signals.
Advanced ANSI COBOL with Structured Programming: For VS COBOL II and Microsoft Micro Focus COBOL (1992)

Criteria. General Language Rules. Basic COBOL Statements. Structured Programming. Numeric Data. Character Data. Data Descriptions and Records. Tables. ACCEPT and DISPLAY Statements. Input/Output Concepts and Devices. Sequential Input/Output. Printed Output. Relative and Indexed Files. Special Processing for Input/Output. MVS/ESA Job Control Language. Compile, Link, and Run Procedures. Program Organization. Subprograms. Advanced Character Manipulation. Sorting. Double Byte Character Set (Not in ANSI Standard). Pointer Data (Not in ANSI Standard). Reading Programs. Beyond COBOL. Mainframe/PC Application Considerations. Appendices. Index.
How activists can challenge double standards (2015)

Activists often encounter double standards: powerful groups make a huge outcry about a problem, meanwhile ignoring their own greater role in exactly the same problem. For example, governments with major nuclear arsenals raise the alarm about the possibility that others might acquire nuclear weapons. Powerful groups use a variety of tactics to reduce awareness and concern about their own actions while raising the alarm about others; activists can try to counter these tactics. As a general rule, it is better for campaigners to choose methods that highlight and accentuate double standards and make it more difficult for opponents to adopt the high ground.
An Epidemiologic Investigation of Reproductive Hormones in Men with Occupational Exposure to Perfluorooctanoic Acid (1998)

Perfluorooctanoic acid (PFOA), a potent synthetic surfactant used in industrial applications, is a peroxisome proliferator that has resulted in dose-related increases in hepatic, pancreatic acinar, and Leydig cell adenomas in laboratory animals. In addition, PFOA increased serum estradiol levels through the induction of hepatic aromatase activity. In 1993 and 1995, we conducted two cross-sectional studies of 111 and 80 production workers, respectively, and specifically measured their serum PFOA in relation to several reproductive hormones to determine whether such an effect occurs in humans. PFOA was not significantly associated with estradiol or testosterone in either year's study. A 10% increase in mean estradiol levels was observed among employees who had the highest levels of serum PFOA, although this association was confounded by body mass index. Neither was PFOA consistently associated with the other measured hormones. Our results provide reasonable assurance that, in this production setting, there were no significant hormonal changes associated with PFOA at the serum levels measured. Limitations of this investigation include its cross-sectional design, the few subjects exposed at the highest levels, and the lower levels of serum PFOA measured, compared with those levels reported to cause effects in laboratory animal studies.
Rhythm self-quiz (2013)

In Brief Test your rhythm strip interpretation using a five-step analysis method. Identify the mystery dysrhythmia, and learn about its causes and management.
석유시장 구조의 국제정치역학 연계성: 2015년 유가변동의 요인 분석 (2015)

This paper is focused on the recent decline in oil prices in linkage with international political and economic clout to maintain hegemony over the current situation on the oil-for-arms as strategies. Global markets remained oversupplied by the end of 2014. The international oil prices have fallen low enough to press OPEC’s rivals into cutting sufficiently and increasingly efficient shale that producers could restore output in North America. Saudi Arabia within OPEC has sought to allow prices falling to curb U.S. and other non-OPEC output that is based on the dynamics and future outlook of the market for oil. A recovery in oil prices is hard to expect when there is a supply glut, while demand cannot be caught up in near future. And it expects a lower new normal for prices and oil has further downside risk. The actual situation in oil market can be described as fighting for market share. The real story is the shale revolution and the fact that Saudi Arabia refuses to be the one to make the cut to support prices. And oil producing country is fighting for market share this time. The market’s oversupply is not an issue that could be solved in the short term being affected by Gulf security. This paper is focusing on the regional security complex framework within global hegemony for the analysis which is divided into multi levels: security interdependencies within each level were deeper and more diverse than those across the complex as a whole. And Korea``s future energy resources management should be rechecked on their direction.
Hydrogen Spillover on Carbon-Supported Metal Catalysts Studied by Inelastic Neutron Scattering. Surface Vibrational States and Hydrogen Riding Modes (2003)

Hydrogen spillover on carbon-supported precious metal catalysts has been investigated with inelastic neutron scattering (INS) spectroscopy. The aim, which was fully realized, was to identify spillover hydrogen on the carbon support. The inelastic neutron scattering spectra of Pt/C, Ru/C, and PtRu/C fuel cell catalysts dosed with hydrogen were determined in two sets of experiments: with the catalyst in the neutron beam and, using an annular cell, with carbon in the beam and catalyst pellets at the edge of the cell excluded from the beam. The vibrational modes observed in the INS spectra were assigned with reference to the INS of a polycyclic aromatic hydrocarbon, coronene, taken as a molecular model of a graphite layer, and with the aid of computational modeling. Two forms of spillover hydrogen were identified: H at edge sites of a graphite layer (formed after ambient dissociative chemisorption of H2), and a weakly bound layer of mobile H atoms (formed by surface diffusion of H atoms after dissociative chemisorption of H2 at 500 K). The INS spectra exhibited characteristic riding modes of H on carbon and on Pt or Ru. In these riding modes H atoms move in phase with vibrations of the carbon and metal lattices. The lattice modes are amplified by neutron scattering from the H atoms attached to lattice atoms. Uptake of hydrogen, and spillover, was greater for the Ru containing catalysts than for the Pt/C catalyst. The INS experiments have thus directly demonstrated H spillover to the carbon support of these metal catalysts.
老徐秀的不是平胸，是“丰满”的心 (2010)

由徐静蕾自导自演的《杜拉拉升职记》的首款预告片中，除了丰富的色彩和令人眩目的时装，更有饰演杜拉拉的徐静蕾与扮演王伟的黄立行在海滩“宽衣解带”的场景。徐静蕾不但穿着白色内衣大胆出镜，并且特意给黄立行加了句台词儿：“就你这身材还敢穿比基尼”。公开自我解嘲。（3月13日《生活新报》）