gebhart/patrepeval huggingface dataset:
Catalytic Activity of Ag/SiO <sub>2</sub> and Ag/Co <sub>3</sub> O <sub>4</sub> Hierarchically Porous Monoliths for Hydrogenation of Dyes (2014)

In this work, the synthesis of silver (Ag) supported on hierarchically porous silica (SiO<sub>2</sub>), and cobalt oxide (Co<sub>3</sub>O<sub>4</sub>) monoliths and the catalytic activity of these monoliths for the hydrogenation of methylene blue (MB) and methyl orange (MO) dyes in water is reported. The SiO<sub>2</sub> monoliths were synthesized using a sol-gel technique. The Co<sub>3</sub>O<sub>4</sub> monoliths were prepared by nanocasting, using the SiO<sub>2</sub> monoliths as template. Loading of Ag nanoparticles on the SiO<sub>2</sub> and Co<sub>3</sub>O<sub>4</sub> monoliths, was done by a solution infiltration method using aqueous silver nitrate (AgNO<sub>3</sub>) solution followed by reduction with ethylene glycol. The resulting monoliths were characterized by XRD, BET-SA, and SEM, and the catalytic activity of the monoliths was studied for the hydrogenation of MB and MO by sodium borohydride (NaBH<sub>4</sub>). Careful control experiments allowed the overall rate of the Ag catalyzed reaction to be corrected for the rates of the non-catalyzed reaction and the rates of dye adsorption on the supports and Ag nanoparticles. Ag supported on SiO<sub>2</sub> gave the fastest hydrogenation for MB, Ag on Co<sub>3</sub>O<sub>4</sub> gave the fastest MO hydrogenation.
Association of heart rate variability and inflammatory response in patients with cardiovascular diseases: current strengths and limitations (2013)

Many experimental and clinical studies have confirmed a continuous cross-talk between both sympathetic and parasympathetic branches of autonomic nervous system and inflammatory response, in different clinical scenarios. In cardiovascular diseases, inflammation has been proven to play a pivotal role in disease progression, pathogenesis and resolution. A few clinical studies have assessed the possible inter-relation between neuro-autonomic output, estimated with heart rate variability analysis, which is the variability of R-R in the electrocardiogram, and different inflammatory biomarkers, in patients suffering from stable or unstable coronary artery disease (CAD) and heart failure. Moreover, different indices derived from heart rate signals' processing, have been proven to correlate strongly with severity of heart disease and predict final outcome. In this review article we will summarize major findings from different investigators, evaluating neuro-immunological interactions through heart rate variability analysis, in different groups of cardiovascular patients. We suggest that markers originating from variability analysis of heart rate signals seem to be related to inflammatory biomarkers. However, a lot of open questions remain to be addressed, regarding the existence of a true association between heart rate variability and autonomic nervous system output or its adoption for risk stratification and therapeutic monitoring at the bedside. Finally, potential therapeutic implications will be discussed, leading to autonomic balance restoration in relation with inflammatory control.
Modified Lipophilic Vitamin. II. Effect of Tocopheronolactone on Lipid-Peroxidation (1969)

1) The effect of tocopheronolactone on two lipid-peroxidation systems, one is the enzymatic system coupled to NADPH oxidation and stimulated by ADP-Fe+2 mixture (NADPH-ADP-Fe+2 system), and the other is non-enzymatic system induced by ascorbate and Fe+2 (ascorbate-Fe+2 system), were studied. 2) The quinol form of tocopheronolactone inhibited the autoxidation of unsaturated fatty acid, but quinoid form of it, unlike ubiquinone and p-benzoquinone, did not show the antioxidant activity. 3) The enzymatic reduction of tocopheronolactone was inhibited by dicoumarol which peculiarly inhibit the quinone reductase. 4) Though antioxidant activity of tocopheronolactone on the ascorbate-Fe+2 lipidperoxidation system come into effect through the prior reduction to quinol, its activity on the NADPH-ADP-Fe+2 lipid-peroxidation system seems to be caused by intact quinone. Such assumption could be introduced by taking the effect of dicoumarol on above two system into consideration. 5) Tocopheronolactone did not inhibit the NADPH-linked metabolism of aminopyrine and codeine.
Learning SQL for Database Intrusion Detection using Context-sensitive Modelling (2009)

Modern multi-tier application systems are generally based on high performance database systems in order to process and store business information. Containing valuable business information, these systems are highly interesting to attackers and special care needs to be taken to prevent any malicious access to this database layer. In this work we propose a novel approach for modelling SQL statements to apply machine learning techniques, such as clustering or outlier detection, in order to detect malicious behaviour at the database transaction level. The approach incorporates the parse tree structure of SQL queries as characteristic e.g. for correlating SQL queries with applications and distinguishing benign and malicious queries. We demonstrate the usefulness of our approach on real-world data.
Amplifier linearization using simultaneous harmonic and baseband injection (2001)

A novel linearization scheme utilizing injection of distortion signal at the input of amplifier is described. Harmonic and baseband signal generated by predistortion circuits is fed to the input of the main amplifier and by controlling the power level of the harmonic and baseband signal properly, mixing products can be made to cancel out with the FET inherent distortion signals. Unlike many other techniques, no precise phase adjustment is required for the RF signal path. For verification, the two-tone performance of a constructed linearized amplifier is measured and a reduction of the third-order IMD power level of about 27 dB is observed.
Tetra-<i>n</i>-butylammonium Borohydride Semiclathrate: A Hybrid Material for Hydrogen Storage (2009)

In this study, we demonstrate that tetra-n-butylammonium borohydride [(n-C(4)H(9))(4)NBH(4)] can be used to form a hybrid hydrogen storage material. Powder X-ray diffraction measurements verify the formation of tetra-n-butylammonium borohydride semiclathrate, while Raman spectroscopic and direct gas release measurements confirm the storage of molecular hydrogen within the vacant cavities. Subsequent to clathrate decomposition and the release of physically bound H(2), additional hydrogen was produced from the hybrid system via a hydrolysis reaction between the water host molecules and the incorporated BH(4)(-) anions. The additional hydrogen produced from the hydrolysis reaction resulted in a 170% increase in the gravimetric hydrogen storage capacity, or 27% greater storage than fully occupied THF + H(2) hydrate. The decomposition temperature of tetra-n-butylammonium borohydride semiclathrate was measured at 5.7 degrees C, which is higher than that for pure THF hydrate (4.4 degrees C). The present results reveal that the BH(4)(-) anion is capable of stabilizing tetraalkylammonium hydrates.
Dispersion map optimisation for 40 channel x 10 gb/s transmission over 3000 km using standard SMF and EDFA amplification (2003)

The dispersion properties of a 40 channel x 10 Gb/s wavelength division multiplexed (WDM) transmission link using single mode fibre with all EDFA amplification over 30 x 100 km spans have been studied using computer simulations. The dispersion map of the link was optimised by adding fibre sections with positive or negative dispersion at the transmitter, within each amplifier span, and at the receiver. Optimum combinations of these dispersive fibre lengths significantly enhance the overall transmission performance.
Deep Electron and Hole Traps in Electron-Irradiated Green GaN/InGaN Light Emitting Diodes (2017)

Deep electron and hole trap spectra and electroluminescence (EL) efficiency of green multi-quantum-well (MQW) GaN/InGaN light emitting diodes were measured before and after 6 MeV electron irradiation. Starting with a fluence of 5 × 1015 cm−2, electron irradiation increased the concentration of existing electron traps with levels at Ec−0.5 eV and introduced new electron traps with levels near Ec−1 eV. The latter are the well known radiation defects formed in the GaN barriers of the GaN/InGaN MQW region. The degradation of the EL efficiency after irradiation correlates with changes of the Ec−0.5 eV and Ec−1 eV electron trap density, suggesting these are effective non-radiative recombination centers. By sharp contrast, the concentration of the dominant hole traps with levels near Ev+0.45 eV decreased after, which eliminates these from the role of Shockley-Read-Hall defects actively participating in recombination.
Online Active Learning in Practice (2007)

We compare the practical performance of several recently proposed algorithms for active learning in the online setting. We consider two algorithms (and their combined variants) that are strongly online, in that they do not store any previously labeled examples, and for which formal guarantees have recently been proven under various assumptions. We perform an empirical evaluation on optical character recognition (OCR) data, an application that we argue to be appropriately served by online active learning. We compare the performance between the algorithm variants and show significant reductions in label-complexity over random sampling.
Durability of fire retardant treated wood products at humid and exterior conditions review of literature (2001)

Abstract Fire retardants may considerably improve the fire properties of wood products, but the durability, e.g. in exterior applications, has not been addressed fully. This paper reviews the existing knowledge and experience mainly from the USA with the aim of supporting further development in Europe. The review is concentrated on pressure impregnated fire retardant treated wood products which have the best opportunities for increased durability. Copyright © 2001 by John Wiley & Sons, Ltd.
Decline in Milk Yield from the East to the West (1949)

It is very well known that milk records show a considerable downward trend in yield from the East to the West of England and Wales. The Bureau of Records of the Milk Marketing Board have produced some admirable maps, shaded by counties according to the average yield, and these bring out the trend very clearly ; roughly the yield declines from 730 to 630 gallons, a drop of 15 per cent. This trend in yield is not a new phenomenon. Twenty-five years ago Dr. Hammond and I found the same thing with 26 counties which by 1923 had had milk recording societies functioning for five years ; the decline was approximately from 700 to 600 gallons. We selected two societies which were at that time about at the extremes and extracted lactation figures from the milk record books of the members in an effort to probe a little deeper into the difference. I hope to refer to these two again and will only say now that Norfolk milk recorded cows gave 22.8 per cent, more milk than those of Penrith, and of this difference, 6 per cent, was due to higher yield at the start of the lactation and the rest to greater persistence of yield and to longer continued milk flow.
Thermal ablation of prostate diseases: advantages and limitations (2004)

Both benign and malignant conditions affecting prostate gland are very common in elderly men.However, the conventional treatment of these conditions can be associated with significant side effects and complications, and less invasive treatment alternative has been always searched for.Because of the anatomical location and easy accessibility of prostate, many newer treatment modalities using thermal ablation have been applied to the organ.These include not only heating of the pathological tissue but also freezing.Some of such treatment techniques have shown to be effective and safe and been clinically used widely.In this review article, various tissue ablation techniques using temperature change applied to prostate gland are covered.Each procedure's advantages and disadvantages are compared and discussed.
Histochemical and electrophoretic analyses of hydrolytic enzymes during the embryogenesis of Aulocara elliotti (Thomas) (Orthoptera, Acrididae) (2015)

The ontogeny of six hydrolytic enzymes was followed throughout the embryo genes is of the grasshopper AuloaaTa elliotti (Thomas).Nonspecific esterase, lipase, acid and alkaline phosphatase, and aminopeptidase activities were demonstrated using azo dye simultaneous coupling techniques.Protease activity was demonstrated using the substrate film methods.All enzymes except the proteases were separated and identified by polyacrylamide disc microgel electrophoresis.The levels of enzymatic activity were recorded for the various organs and tissues in relation to the staging criteria of morphological development for this species (Van Horn, 1966a).A burst of acid phosphatase activity was observed in the presumptive prothorax region during stage 6.This site and time of enzyme activity correspond to the location of the physiological differentiation center reported for other species of insects.The presumptive region of subesophageal body cells exhibited a low level of aminopeptidase activity two stages prior to the morphological differentiation of these cells.Aminopeptidase activity was intense in these cells at the time of their differentiation, Neuropyle differentiation, but not neuroblast formation, was accompanied by high nonspecific esterase, lipase, acid phosphatase and aminopeptidase activities.The serosal membrane was found to be one of the most hydrolytically active tissues of the egg in contract to the amniotic and provisional dorsal closure membranes which demonstrated negligible amounts of hydrolytic activity.The pleuropodia exhibited high levels of all of the hydrolytic enzymes studied at some stage in their development but dramatic shifts in enzyme activity were observed at different stages.These and other evidences indicate the possible function of these enzymes in nutritional metabolism.Shortly before the definitive stage the pleuropodia display intense hydrolytic activity and may be a major source of the hydrolytic enzyme activity found in the extra-embryonic fluids.The embryonic molting fluids and the serosal "cap" also may contribute hydrolytic enzymes to the extra-embryonic fluids.The abundant nonspecific hydrolytic activities observed in the degenerating pleuropodia and the serosal "cap" may account for the hydrolysis of the endocuticular layers without postulating a specific hatching enzyme.Intense aminopeptidase activity was found in the stomodeal-and proctodeal-midgut junctions in late post-diapause stages and within the presumptive cerci from stage 13 to hatching.The number of nonspecific esterase-active bands, as demonstrated with electrophoresis, was found to increase during development from 4 to 12 within the embryo and from 3 to 10 bands within the yolk.The zymogram patterns for the pleuropodia and the serosa were determined.
Mass mortalities associated with viral nervous necrosis (VNN) disease in two species of hatchery‐reared grouper, <i>Epinephelus fuscogutatus</i> and <i>Epinephelus akaara</i> (Temminck & Schlegel) (1997)

Mass mortalities of hatchery‐reared juvenile groupers have occurred in southern Taiwan. The diseased fish swam in a darting, corkscrew fashion. Light microscopy revealed vacuolation in the brain tissue. Electron microscopy showed numerous non‐enveloped, cytoplasmic viral particles (20–25 nm in diameter) in the brain cells, and many virions were enclosed in the membrane‐bound organelles of the cells. Two structural proteins of the purified grouper virus, with molecular weights of 44 and 43 kDa, were revealed by SDS‐PAGE. Moreover, the results of RT‐PCR and nested PCR diagnosis using primers specific to the T2 and T4 target segments of striped jack nervous necrosis virus (SJNNV) RNA2 genes suggest that this virus is a fish nodavirus, and is designated as GNNV 9410 strain (grouper nervous necrosis virus strain 9410). This is the first case report of viral nervous necrosis among marine fish in Taiwan.
Estimation of flow activation volume of synthetic ester lubricants. (1982)

A formula was proposed to estimate the atmospheric flow activation volumes of synthetic ester lubricants from their molecular structures based on the assumption of independent movement and contribution of each flow unit of the ester molecule. The estimated activation volumes were in good agreement with those of the experimental. Data, reported by other investigators for high pressure viscosities of several hydrocarbons, were used to test the applicability of the proposed formula. Limitations in its applicability were also discussed.
Optimal rejection of persistent bounded disturbances (1986)

In this paper, we formulate the problem of optimal disturbance rejection in the case where the disturbance is generated as the output of a stable system in response to an input which is assumed to be of unit amplitude, but is otherwise arbitrary. The objective is to choose a controller that minimizes the maximum amplitude of the plant output in response to such a disturbance. Mathematically, this corresponds to requiring uniformly good disturbance rejection over all time. Since the problem of optimal tracking is equivalent to that of optimal disturbance rejection if a feedback controller is used (see [7, sect. 5.6]), the theory presented here can also be used to design optimal controllers that achieve uniformly good tracking over all time rather than a tracking error whose L <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> -norm is small, as is the case with the currently popular <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">H_{\infty}</tex> theory. The present theory is a natural counterpart to the existing theory of optimal disturbance rejection (the so-called <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">H_{\infty}</tex> theory) which is based on the assumption that the disturbance to be rejected is generated by a stable system whose input is square-integrable and has unit energy. It is shown that the problem studied here has quite different features from its predecessor. Complete solutions to the problem are given in several important cases, including those where the plant is minimum phase or when it has only a single unstable zero. In other cases, procedures are given for obtaining bounds on the solution and for obtaining suboptimal controllers.
The $W$ algebra structure of $N=2$ $CP_{n}$ coset models (1992)

We discuss the $N=2$ super $W$ algebras from the hamiltonian reduction of affine Lie superalgebras $A(n|n-1)^{(1)}$ and $A(n|n)^{(1)}$. From the quantum hamiltonian reduction of $A(n|n-1)^{(1)}$ we get the free field realization of $N=2$ $CP_{n}$ super coset models. In the case of the affine Lie superalgebras $A(n|n)^{(1)}$, the corresponding conformal field theories do not have $N=2$ superconformal symmetry. However we show that these models are twisted $N=2$ $CP_{n}$ models and may be regarded as topological conformal field theories. (Talk presented at the International Workshop on "String Theory, Quantum Gravity and the Unification of Fundamental Interactions" Rome, September 21--26, 1992)
The Photochemistry of Conformationally Rigid Benzylic Esters: 2,2-Dimethyl-1-indanyl Acetates and Pivalates (1995)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Photochemistry of Conformationally Rigid Benzylic Esters: 2,2-Dimethyl-1-indanyl Acetates and PivalatesJ. A. Pincock and P. J. WedgeCite this: J. Org. Chem. 1995, 60, 13, 4067–4076Publication Date (Print):June 1, 1995Publication History Published online1 May 2002Published inissue 1 June 1995https://pubs.acs.org/doi/10.1021/jo00118a024https://doi.org/10.1021/jo00118a024research-articleACS PublicationsRequest reuse permissionsArticle Views172Altmetric-Citations13LEARN 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 (2)»Supporting Information Supporting Information Get e-Alerts
Prodiginine (Prodigiosin-Like) Pigments from <i>Streptoverticillium rubrireticuli</i> , an Organism That Causes Pink Staining of Polyvinyl Chloride (1975)

Red pigments were extracted from Streptoverticillium rubrireticuli strain 100-19, an organism frequently incriminated in pink staining of polyvinyl chloride. These pigments were identified as undecylprodiginine and butylcycloheptylprodiginine.
<sup>13</sup>C NMR investigation of some hetero‐ring substituted 2‐ and 4‐quinolone systems (1981)

Abstract A series of 2‐ and 4‐quinolones substituted in the hetero‐ring have been evaluated using 13 C NMR techniques. Substituent effects are discussed as an aid to evaluation of potential tautomerization in the 2‐quinolone systems. The observed substituent shifts for systems having a hydroxy function at the 4‐position in the 2‐quinolones can be explained without implementing the tautomerism to a 4‐quinolone.
The Heterogeneous Systems Integration Design and Implementation for Lane Keeping on a Vehicle (2008)

In this paper, an intelligent automated lane-keeping system is proposed and implemented on our vehicle platform, i.e., TAIWAN i TS-1. This system challenges the online integrating heterogeneous systems such as a real-time vision system, a lateral controller, in-vehicle sensors, and a steering wheel actuating motor. The implemented vision system detects the lane markings ahead of the vehicle, regardless of the varieties in road appearance, and determines the desired trajectory based on the relative positions of the vehicle with respect to the center of the road. To achieve more humanlike driving behavior such as smooth turning, particularly at high levels of speed, a fuzzy gain scheduling (FGS) strategy is introduced to compensate for the feedback controller for appropriately adapting to the SW command. Instead of manual tuning by trial and error, the methodology of FGS is designed to ensure that the closed-loop system can satisfy the crossover model principle. The proposed integrated system is examined on the standard testing road at the Automotive Research and Testing Center (ARTC) <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1</sup> and extra-urban highways.