gebhart/patrepeval huggingface dataset:
A Three-Phase Inverter with Reactive Power Control (1973)

A new type of self-commutated inverter for fixed or moderately variable frequency has been developed. The inverter is characterized by an extremely uncomplicated main circuit. In its basic form the inverter contains two converter circuits: a principal converter circuit and an auxiliary converter circuit. The principal converter circuit transfers power from the input dc side to the output ac side, and the auxiliary converter circuit generates an inductive current to balance the reactive current of a three-phase capacitor on the ac side. This capacitor has the combined function of a phase compensator, a filter capacitor, and is also the source of the commutating voltage. Both converter circuits are of the line commutated type, meaning that at power frequencies normal converter thyristors can be employed. This makes it possible to build high-power inverters without series or parallel connected thyristors. All filter reactors are smoothing reactors placed on the dc side of the converter circuits. Thus the inverter has a very good efficiency even at the higher frequencies. The ability of a converter circuit to generate a negative sequence current when unsymmetrically controlled makes the inverter insensitive to unbalanced loads. The transient behavior of the inverter is similar to that obtained from a conventional self-commutated inverter with an output filter.
Compilation and analysus of<i>Bacillus Subtilis</i>σ<sup>A</sup>-dependent promoter sequences: evidence for extended contact between RNA polymerse and upstream promoter DNA (1995)

Sequence analysis of 236 promoters recognized by the Bacillus subtilis sigma A-RNA polymerase reveals an extended promoter structure. The most highly conserved bases include the -35 and -10 hexanucleotide core elements and a TG dinucleotide at position -15, -14. In addition, several weakly conserved A and T residues are present upstream of the -35 region. Analysis of dinucleotide composition reveals A2- and T2-rich sequences in the upstream promoter region (-36 to -70) which are phased with the DNA helix: An tracts are common near -43, -54 and -65; Tn tracts predominate at the intervening positions. When compared with larger regions of the genome, upstream promoter regions have an excess of An and Tn sequences for n > 4. These data indicate that an RNA polymerase binding site affects DNA sequence as far upstream as -70. This sequence conservation is discussed in light of recent evidence that the alpha subunits of the polymerase core bind DNA and that the promoter may wrap around RNA polymerase.
Polymers with tertiary amino groups obtained by the reaction between chloromethylated polystyrene and 3‐alkylaminopropionitrile (1986)

Abstract Polymers with tertiary amino groups were obtained by reaction of chloromethylated polystyrene (CMPS) with 3‐alkylaminopropionitriles ( 2a — e ). The resulting polymers 3a — e were characterized by elemental analyses, IR and 1 H NMR spectra. Kinetic investigation showed that the reaction is characterized by two rate constants, the rate change taking place at a conversion of 45–50%. Viscosimetric studies of the hydrochlorides of polymers 3a — e in water and methanol showed that they behave as polyelectrolytes only in methanol. The abnormal behaviour of water solutions was explained by hydrolysis reaction. To prove the conclusions on the molecular structures of 3a — e and the reactivity of CMPS, a study of the reaction of benzyl chloride with the same amines was performed.
Enhanced high thermal conductivity and low permittivity of polyimide based composites by core-shell Ag@SiO2 nanoparticle fillers (2012)

A kind of polymer based composites was prepared by embedding the fillers of core-shell Ag@SiO2 nanoparticles into the polyimide (PI) matrix. The obtained Ag@SiO2/PI (50% vf of fillers) composites show remarkably improved high thermal conductivity and low relative permittivity. The maximum value of the thermal conductivity of composites is 7.88 W/(mK) and the relative permittivity and dielectric loss are about 11.7 and 0.015 at 1 MHz, respectively. Compared with self-passivated nanometer Al* particles composites, core-shell Ag@SiO2 nano-composite is beneficial to increase the thermal conductivity and reduce the permittivity of the composites. The relative mechanism was studied and discussed.
A 10.6-um terrestrial communication link (1974)

An experimental one-way 8-Mb/s 10.6-μm laser communication system that utilizes optical FM and heterodyne detection has been engineered to allow continuous operation through a variety of weather conditions. Performance over paths of 3 mi and 20 mi is described. Nearly 2000 h of data have been accumulated, including one continuous run of 1320 h with less than 5 percent downtime due to weather.
Ion-selective electrodes (1974)

Glass electrodes for pH measurement; glass electrodes for measurements of ions other than hydrogen ions; solid-state electrodes; liquid ion-exchanger membrane electrodes; analytical applicability the selectivity, precision, sensitivity, response time, and lifetime of electrode.
High-frequency electric field measurement using a toroidal antenna (1997)

In this paper the author describes an innovative method of measuring high-frequency electric fields using a toroid. For typical geophysical applications the new sensor will detect electric fields for a wide range of spectrum starting from 1.0 MHz. This window, in particular the lower frequency range between 1.0 to 100 MHz, has not been used for existing electromagnetic or radar systems to detect small objects in the upper few meters of the ground. Ground penetrating radar (GPR) can be used successfully in this depth range if the ground is resistive but most soils are, in fact, conductive (0.01 to 1.0 S/m) rendering GPR inefficient. Other factors controlling the resolution of GPR system for small objects is the spatial averaging inherent in the electric dipole antenna and the scattering caused by soil inhomogeneities of dimensions comparable to the wavelength (and antenna size). For maximum resolution it is desirable to use the highest frequencies but the scattering is large and target identification is poor. Time-varying magnetic fields induce an emf (voltage) in a toroid. The electric field at the center of the toroid is shown to be linearly related to this induced voltage. By measuring the voltage across a toroid one can easily and accurately determine the electric field. The new sensor will greatly simplify the cumbersome procedure involved with GPR measurements with its center frequency less than 100 MHz. The overall size of the toroidal sensor can be as small as a few inches. It is this size advantage that will not only allow easy fabrication and deployment of multi-component devices either on the surface or in a borehole, but it will render greatly improved resolution over conventional systems.
Fused polished singlemode fibre couplers (1992)

The successful fabrication of stable low-loss fused polished couplers with standard singlemode fibres is reported for the first time. The ease of fabrication is comparable to that of tapered couplers and should lead to low-cost devices.
A new latch-based threshold logic family (2002)

This paper presents a new low-power threshold logic family with self lock-out property. The simulated results have shown that, the proposed threshold logic dissipates between 10% and 79% less power and between 57% and 71% less energy, at V/sub DD/=5 V, when compared with previous similar threshold logic families. Moreover, at V/sub DD/=3.3 V, it has between 12% and 48% less energy and between 34% and 60% less dissipated power in the worst case.
Periodic shift-invariant multiresolution analysis (2002)

The Shannon multiresolution analysis and two methods of its periodization are considered. The class of all shift-invariant multiperiodic analyses with complex-valued scaling functions is described. All weakly shift-invariant periodic analogues of the Shannon scaling function are found. Among them, two shift-invariant periodic analogues of the sine function are revealed. A wavelet packet transform that generalizes the discrete Fourier transformation is found. An application of the shift-invariant periodic wavelet packet bases for time-frequency analysis of speech signals is discussed and illustrated.
The use of caproic acid to prevent aerobic deterioration of silages after opening, with special reference to the amounts and time of application (1977)

Abstract The effectiveness of caproic acid (hexanoic acid) addition to silages prepared from Italian ryegrass or cocksfoot (dry matter 16.3–34.5%) in preventing aerobic deterioration after opening was investigated in five experiments with varying amounts and times of application. Silages prepared in PVC bag silos were transferred to expanded polystyrene containers and left in a room at 25°C for 7 days with access to air. Aerobic deterioration was judged by rise in temperature, increase in pH and changes in the counts of yeasts and moulds. A low dry matter silage containing a fairly large amount of butyric acid was stable, and another low dry matter silage was relatively stable. Silages made from wilted grass deteriorated. Application of 50 mmol/kg grass at ensiling prevented deterioration in all cases. The effect was also observed with 50 mmol addition at opening, 10 mmol at ensiling and 10 mmol at opening in that order.
Real-Time Artificial Intelligence Control and Optimization of a Full Scale WTP (2007)

This study shows that advanced artificial neural network (ANN) model-based control systems can be used for drinking water treatment process control. ANN technology, an artificial intelligence technology that has the ability to learn patterns and relationships contained in sets of data, is the most powerful modeling tool currently available to the drinking water treatment industry. ANN predicts the output of a process given the values of process inputs and process control variables. The results of this project have the potential to revolutionize the way in which drinking water utilities optimize and control their unit processes to efficiently and consistently supply high quality drinking water
A novel PEGylation of chitosan nanoparticles for gene delivery (2007)

CS (chitosan) has emerged as a promising non-viral vector for gene delivery because of its ability to form complexes with pDNA (plasmid DNA) and enhance its transport across cellular membranes through endocytosis. Complexes of CS and pDNA may improve transfection efficiency; however, they are not capable of sustained DNA release and prolonging gene transfer. In order to achieve prolonged delivery of CS-DNA complexes, we prepared CS NP (nanoparticle) and CS-DNA complexes. alpha-Methoxy-omega-succinimidylpoly(ethylene glycol) was then conjugated to the surface of CS-DNA complexes using an active ester scheme; finally, the potential of PEGylation [poly(ethylene glycol)ylation] of CS NP as a non-viral gene-delivery vector to transfer exogenous genes in vitro and in vivo were examined. Electrophoretic analysis suggested that CS NPs could protect the DNA from nuclease degradation. The pDNA carried by CS NPs could enter and be expressed in HepG2 cells. However, the transfection efficiency was very low and the highest dose of DNA transferred was 1.6 microg. The transfection activities of CS-DNA-PEG were preserved and a higher dose (2.4 microg) of pDNA was transferred. This indicated that the transfection efficiency of the PEGylated complexes had been improved. In vivo experiments also showed that CS-DNA-PEG complexes mediated higher gene expression in tissues than did CS-DNA complexes, and that gene expression in tumours induced by CS-DNA-PEG complexes was the highest of all. These results suggested that PEGylation of CS-DNA complexes improves non-viral gene delivery in vitro or in vivo and has the potential to deliver therapeutic genes directly into hepatoma tissues.
No need for a large belly to have NASH (2011)

It has been recognized that some lean individuals unexpectedly present with non-alcoholic steatohepatitis (NASH) [1] and in contrast, morbidly obese individuals present NASH in only about 14–37% of cases [2]. Although this situation is seemingly paradoxical, the discrepancy has been mostly attributed to the pattern of obesity being predominantly visceral/truncal, or peripheral/subcutaneous. Obesity, and particularly visceral fat (VF), is considered a key player in the development of the metabolic syndrome and its complications, namely cardiovascular risk and non-alcoholic fatty liver disease (NAFLD). Indeed, waist circumference, considered an indirect measurement of VF, is one criterion in the metabolic syndrome definition.
A media agent for automatically building a personalized semantic index of Web media objects (2001)

A novel idea of media agent is briefly presented, which can automatically build a personalized semantic index of Web media objects for each particular user. Because the Web is a rich source of multimedia data and the text content on the Web pages is usually semantically related to those media objects on the same pages, the media agent can automatically collect the URLs and related text, and then build the index of the multimedia data, on behalf of the user whenever and wherever she accesses these multimedia data or their container Web pages. Moreover, the media agent can also use an off-line crawler to build the index for those multimedia objects that are relevant to the user's favorites but have not accessed by the user yet. When the user wants to find these multimedia data once again, the semantic index facilitates text-based search for her.
Spironolactone in Addition to ACE Inhibition to Reduce Proteinuria in Patients with Chronic Renal Disease (2001)

To the Editor: Angiotensin-converting–enzyme (ACE) inhibitors have been shown to reduce proteinuria and slow the progression of renal disease.1 Although to date angiotensin II has been the focus of...
LaTiO3/KTaO3 interfaces: A new two-dimensional electron gas system (2015)

We report a new 2D electron gas (2DEG) system at the interface between a Mott insulator, LaTiO3, and a band insulator, KTaO3. For LaTiO3/KTaO3 interfaces, we observe metallic conduction from 2 K to 300 K. One serious technological limitation of SrTiO3-based conducting oxide interfaces for electronics applications is the relatively low carrier mobility (0.5-10 cm2/V s) of SrTiO3 at room temperature. By using KTaO3, we achieve mobilities in LaTiO3/KTaO3 interfaces as high as 21 cm2/V s at room temperature, over a factor of 3 higher than observed in doped bulk SrTiO3. By density functional theory, we attribute the higher mobility in KTaO3 2DEGs to the smaller effective mass for electrons in KTaO3.
New latex agglutination test for rapid determination of rubella immune status (1982)

A prototype rubella latex agglutination card assay (Hynson, Westcott and Dunning, Baltimore, Md.) was compared with a standard hemagglutination inhibition test for the detection of rubella antibodies in 500 sera. The sensitivity and specificity of the latex agglutination assay were 100% and 94%, respectively. This assay did not require pretreatment of serum, and the entire assay could be performed in 10 min.
Recent trends in dental emergency department visits in the United States – 1997/1998 to 2007/2008 (2012)

Although dental-related ED visits account for a relatively small percentage of total ED visits, both the number and the percentage of such visits grew from 1997/1998 to 2007/2008. Young adults 20-34 years old were most likely to present at an ED with a dental problem.
Signal level interpolation for coverage area prediction (2005)

Predicting the received signal level is important in the design of cellular communication systems. In this paper, signal level interpolation around measured signal levels is introduced as a means to predict coverage areas. For signal level interpolation, surface fitting methods are required and three methods have, been evaluated: moving least squares (MLS), Delaunay triangulation and averaging for interpolation (AFI). The first two methods interpolate signal level values over a wide area with samples from only a few measurement points, while AFI requires closely spaced, evenly scattered points. MLS and Delaunay triangulation are described in the literature while AFI is a novel method developed by the author. The interpolated signal levels have been compared with measurements. The mean of the standard deviation of the error for seven test cases is 6.1 dB with the MLS method and 5.1 dB with triangulation. A comparison between all three methods revealed that in cases of closely spaced, evenly scattered points AFI gives the smallest mean value of the standard deviation (3.0 dB) for four cases.
Unmasking social anxiety disorder. (2001)

Shyness and self-consciousness are related constructs describing a tendency for some people to fear and avoid the scrutiny of others. In some cases, these characteristics are so pronounced that the individual shuns most forms of interpersonal contact or endures these encounters only with intense discomfort. Such people suffer from what is alternately referred to as “social anxiety disorder” or “social phobia.” Once largely neglected by the medical community, social anxiety disorder is now garnering increased attention and recognition as a serious but treatable condition.
Transmural Dispersion of Repolarization in Failing and Nonfailing Human Ventricle (2010)

We present for the first time direct experimental evidence of a transmural APD gradient in the human heart. HF results in the heterogeneous prolongation of APD, which significantly reduces the transmural and local APD gradients.
Microdevices for manipulation and accumulation of micro‐ and nanoparticles by dielectrophoresis (2003)

Microfluidic devices with three-dimensional (3-D) arrays of microelectrodes embedded in microchannels have been developed to study dielectrophoretic forces acting on synthetic micro- and nanoparticles. In particular, so-called deflector structures were used to separate particles according to their size and to enable accumulation of a fraction of interest into a small sample volume for further analysis. Particle velocity within the microchannels was measured by video microscopy and the hydrodynamic friction forces exerted on deflected particles were determined according to Stokes law. These results lead to an absolute measure of the dielectrophoretic forces and allowed for a quantitative test of the underlying theory. In summary, the influence of channel height, particle size, buffer composition, electric field, strength and frequency on the dielectrophoretic force and the effectiveness of dielectrophoretic deflection structures were determined. For this purpose, microfluidic devices have been developed comprising pairs of electrodes extending into fluid channels on both top and bottom side of the microfluidic channels. Electrodes were aligned under angles varying from 0 to 75 degrees with respect to the direction of flow. Devices with channel height varying between 5 and 50 microm were manufactured. Fabrication involved a dedicated bonding technology using a mask aligner and UV-curing adhesive. Particles with radius ranging from 250 nm to 12 microm were injected into the channels using aqueous buffer solutions.
Immunohistochemical markers associated with brain metastases in patients with nonsmall cell lung carcinoma (2008)

The results of the current study indicated that patients with NSCLC who had high Ki-67 expression, low caspase-3 expression, high VEGF-C expression, and low E-cadherin expression in their tumors may benefit from close surveillance because they may have an increased risk of developing brain metastases.
Fraud prevention by government auditors (2017)

This paper analyzes the classification of the violations found by the activities of the government auditing bodies and marked methodological problems in this classification and qualification. The solution of methodological problems in the fraud classification led to increased productivity and efficiency of the government auditing bodies. This paper has provided an overview of research on government auditor's responsibility to prevent fraud in the public sector. There is also presented a framework for identifying potential areas for future fraud research, highlighting open questions with regard to fraudsters' characteristics, understanding combinations of characteristics as antecedents to fraud, and recognizing the effects of these characteristics on the probability of fraud.
An introduction to the Study of a priori Christology (1985)

The whole subject of a priori or transcendental christology is not one that is much dealt with in Christian systematic theology. Yet, as I hope to make clear in this paper, it is a subject to which those who engage in the study of christology today could tum with profit. I fIrst became inerested in a priori or transcendental christology because of my contact with the writings of Karl Rahner, the one contemporary theologian who has dealt with the subject in detail. The aim of this paper is to introduce the reader to a priori christology as an area of study and to point to some of the consequences of such a study for the understanding of christology as a whole.
SULFONIUM COMPOUNDS. III. THE REACTION OF ORGANIC SULFIDES WITH ORGANIC SULFATES<sup>1</sup> (1943)

ADVERTISEMENT RETURN TO ISSUEArticleNEXTSULFONIUM COMPOUNDS. III. THE REACTION OF ORGANIC SULFIDES WITH ORGANIC SULFATES1FRANCIS EARL RAY and JOSSELYN LISZNIEWSKA FARMERCite this: J. Org. Chem. 1943, 08, 5, 391–396Publication Date (Print):September 1, 1943Publication History Published online1 May 2002Published inissue 1 September 1943https://doi.org/10.1021/jo01193a001Request reuse permissionsArticle Views195Altmetric-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 InReddit PDF (453 KB) Get e-Alertsclose Get e-Alerts
Sophocles, <i>Oedipus Tyrannus</i>, 1512 f (1927)

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