gebhart/patrepeval huggingface dataset:
High-Selectivity Bis(imino)pyridine Iron Catalysts for the Hydrosilylation of 1,2,4-Trivinylcyclohexane (2012)

Aryl-substituted bis(imino)pyridine iron dinitrogen complexes are active for the hydrosilylation of 1,2,4-trivinylcyclohexane with tertiary alkoxy silanes, a process used in the manufacture of low rolling resistance tires. The iron compounds exhibit unprecedented selectivity for the monohydrosilylation of the desired 4-alkene that far exceeds results obtained with commercially used platinum compounds.
Uppsalamodellen och socialbidragstagarna. : En effektutvärdering. (1998)

Between 1990 and 1992/1993 there was a dramatic change in the Swedish labor market, resulting in an increased number of unemployed and social assistance recipients. As a response to this situation, many municipalities developed local activation programs. One of these programs, the “Uppsala model” – practiced in the City of Uppsala and characterized by a “paternalistic discourse” with sharp means tests, control and sanctions – was quite controversial. The general purpose of this dissertation is to study the effects of this activation method on the claimants and to study these effects with regard to the intentions underlying the method. The central questions are whether this method contributed to a greater number of claimants leaving the system for work or education, after a shorter period of time and on a more permanent basis compared to an alternative and more “traditional” method characterized by a “redistributive discourse”. Another central question is whether the method was effective under different economic conditions. The data used in the analyses were taken from two social welfare offices and included 509 able-bodied individuals who applied for allowances in either 1990 or 1992, reporting unemployment as the main reason. The main results indicated no systematic differences between the two methods with respect to outcome variables such as length of time on social assistance, probability of obtaining a regular job or an education. There were some indications (non-significant) of an increased probability of returning with claims for social assistance and after a shorter period of time, associated with the paternalist Uppsala model. The great importance of the labor market to recipients` possibilities to leave the social assistance system for work, irrespective of working method, was also shown in the study.
Novel zafirlukast derivatives exhibit selective antibacterial activity against<i>Porphyromonas gingivalis</i> (2019)

Periodontal disease is an oral chronic immune-inflammatory disease highly prevalent worldwide that is initiated by specific oral bacterial species leading to local and systemic effects. The development of new preventive/therapeutic strategies to specifically target oral periodontopathogens without perturbing oral microbiome species normally colonizing the oral cavity is needed. The fast and affordable strategy of repositioning of already FDA-approved drugs can be an answer to the development of novel treatments against periodontal pathogens such as <i>Porphyromonas gingivalis</i>. Herein, we report the synthesis and antibacterial activity of novel zafirlukast derivatives, their bactericidal effect, and their cytotoxicity against oral epithelial cell lines. Many of these derivatives exhibited superior antibacterial activity against <i>P. gingivalis</i> compared to the parent drug zafirlukast. The most promising compounds were found to be selective against <i>P. gingivalis</i> and they were bactericidal in their activity. Finally, we demonstrated that these potent derivatives of zafirlukast provided a better safety profile against oral epithelial cells compared to zafirlukast.
Wireless Fast-Scan Cyclic Voltammetry to Monitor Adenosine in Patients With Essential Tremor During Deep Brain Stimulation (2012)

Essential tremor is often markedly reduced during deep brain stimulation simply by implanting the stimulating electrode before activating neurostimulation. Referred to as the microthalamotomy effect, the mechanisms of this unexpected consequence are thought to be related to microlesioning targeted brain tissue, that is, a microscopic version of tissue ablation in thalamotomy. An alternate possibility is that implanting the electrode induces immediate neurochemical release. Herein, we report the experiment performing with real-time fast-scan cyclic voltammetry to quantify neurotransmitter concentrations in human subjects with essential tremor during deep brain stimulation. The results show that the microthalamotomy effect is accompanied by local neurochemical changes, including adenosine release.
Corrosion of several metals in supercritical steam at 538/sup 0/C. [85 alloys] (1977)

The corrosion of several iron- and nickel-base alloys in supercritical steam at 24.1 MPa (3500 psi) and 538/sup 0/C was measured to 7.92 x 10/sup 7/ s (22,000 h). The experiments were carried out in TVA's Bull Run Steam Plant. Corrosion was measured almost entirely by weight change and visual appearance; a few samples were evaluated by more descriptive analytical techniques. The corrosion rates of low-alloy ferritic steels containing from 1.1 to 8.7 percent Cr and 0.5 to 1.0 percent Mo differed by less than a factor of 2 in steam. Several modified compositions of Hastelloy N were evaluated and found to corrode at about equivalent rates. Of the alloys studied, the lowest weight gain in 3.6 x 10/sup 7/ sec (10,000 hr) was 0.01 mg/cm/sup 2/ for Inconel 718 and the highest 10 mg/cm/sup 2/ for the low-alloy ferritic steels. 25 figures, 3 tables.
Phenazine production enhances extracellular DNA release via hydrogen peroxide generation in<i>Pseudomonas aeruginosa</i> (2013)

In Pseudomonas aeruginosa eDNA is a crucial component essential for biofilm formation and stability. In this study we report that release of eDNA is influenced by the production of phenazine in P. aeruginosa. A ∆phzA-G mutant of P. aeruginosa PA14 deficient in phenazine production generated significantly less eDNA in comparison with the phenazine producing strains. The relationship between eDNA release and phenazine production is bridged via hydrogen peroxide (H2O2) generation and subsequent H2O2 mediated cell lysis and ultimately release of chromosomal DNA into the extracellular environment as eDNA.
Properties of perimetric threshold estimates from Full Threshold, SITA Standard, and SITA Fast strategies. (2002)

SITA Standard may be superior to the Full Threshold strategy for monitoring patients with visual field loss. The greater test-retest variability of SITA Fast in areas of low sensitivity is likely to offset the benefit of even shorter test durations with this strategy. The sensitivity differences between the SITA and Full Threshold strategies may relate to factors other than reduced fatigue. They are, however, small in comparison to the test-retest variability.
Doping-induced type-II to type-I transition and interband optical gain in InAs/AlSb quantum wells (2003)

We show that proper doping of the barrier regions can convert the well-known type-II InAs/AlSb quantum wells (QWs) to type I, producing strong interband transitions comparable to regular type-I QWs. The interband gain for TM mode is as high as 4000 1/cm, thus providing an important alternative material system in the midinfrared wavelength range. We also study the TE and TM gain as functions of doping level and intrinsic electron–hole density.
High-field effects in silicon nitride passivated GaN MODFETs (2003)

This paper presents a detailed study of high-field effects in GaN MODFETs. Degradation of DC characteristics and change of flicker noise due to hot electron and high-reverse current stresses in Si/sub 3/N/sub 4/ passivated GaN MODFETs have been investigated. The authors observe that during hot electron stress, electron trapping in the barrier layer and interface state creation occur. These cause a positive shift of V/sub t/, reduce I/sub D/, skew the transfer characteristics, and degrade g/sub m/. Flicker noise (1/f) measurements show that after hot electron stress, the scaled drain current noise spectrum (S/sub I(D)//I/sub D//sup 2/) decreases in depletion, but increases only slightly in strong accumulation, corroborating the creation of interface states but only a small creation of transition-layer tunnel traps that contribute to 1/f noise. During high-reverse current stress, electron trapping dominates for the first 50-60 s and then hole trapping and trap creation begin to manifest. However, there still is net electron trapping under the gate after one hour of stress. The degradation processes bring about a positive shift of V/sub t/, degrade I/sub D/ and g/sub m/, and increase reverse leakage. After high-reverse current stress, S/sub I(D)//I/sub D//sup 2/ increases substantially in strong accumulation, indicating the creation of transition layer tunnel traps.
<i>O</i> <sup>6</sup> -(Benzotriazol-1-yl)inosine Derivatives:  Easily Synthesized, Reactive Nucleosides (2007)

A novel class of O6-(benzotriazol-1-yl)inosine as well as the corresponding 2'-deoxy derivatives can be conveniently prepared by a reaction between sugar-protected or -unprotected inosine or 2'-deoxyinosine nucleosides and 1H-benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphate (BOP). The reaction appears to proceed via a nucleoside phosphonium salt, and in the absence of any additional nucleophile, the released 1-hydroxybenzotriazole undergoes reaction with the formed phosphonium salt leading to the requisite O6-(benzotriazol-1-yl)inosine or 2'-deoxyinosine derivatives. Isolation and characterization of the phosphonium salt as well as analysis by 31P{1H} NMR appear to be consistent with this reaction pathway. The resulting O6-(benzotriazol-1-yl)inosine derivatives are effective as electrophilic nucleosides, undergoing facile reactions with a variety of nucleophiles such as alcohols, phenols, amines, and a thiol. Unusual and challenging nucleoside derivatives such as an aryl-bridged dimer, a nucleoside-amino acid conjugate, and a nucleoside-nucleoside dimer have also been synthesized from the O6-(benzotriazol-1-yl)-2'-deoxyinosine derivative. Finally, a fully protected DNA building block, the O6-(benzotriazol-1-yl)-2'-deoxyinosine 5'-O-DMT 3'-O-phosphoramidite, has been prepared and a preliminary evaluation of its use for DNA modification has been performed. Results from these studies indicate several important facts: A single, simple methodological approach provides a class of stable, isolable ribo and 2'-deoxyribonucleoside derivatives that possess excellent reactivity for SNAr chemistry with a wide range of nucleophiles. Also, a benzotriazolyl nucleoside phosphoramidite appears to be a suitable reagent for incorporation into DNA for purposes of site-specific DNA modification.
Brillouin scattering in liquids (1965)

The development of monochromatic, intense, and highly directional laser light sources has made it possible to measure accurately the velocity, the frequency, and the lifetimes of thermally excited hypersonic sound waves. The technique employed is to study the spectrum of the light scattered from the thermally generated sound waves in the medium. A theory is presented which demonstrates explicitly the information contained in the intensity, the spectral positions, and spectral widths of the scattered light. An experimental system is also described to measure the spectrum. Preliminary data is presented on the velocity and lifetimes of ∼6 Gc/s sound waves in water and toluene.
Fragments de la ville infinie. Fragmentos de La ciudad infinita (2009)

Le premier livre de Catherine François fut écrit à partir de ses parcours dans les rues de Madrid, quelques années après s'être établie dans cette ville, au milieu des années soixante-dix. Il s'inscrit, en quelque sorte, à la suite des promenades urbaines de Baudelaire ou de Rilke, combinées avec la densité onirique du jeune Artaud. Joignant les impressions du trajet quotidien aux fragments de rêves dans lesquels la ville réapparaît de façon obsessive, l'auteur provoque l'émergence de l'inconscient de la ville: sa géométrie proliférante, "de tout temps contaminée par l'absence". Dans le discours en parallèle de la pensée et de la marche dans la ville, la vision de l'espace intérieur se superpose à l'image de l'espace réel, mettant en question son apparence. La "ville déserte" qui se révèle comme substrat de celle habitée par la foule anonyme trouve sa contrepartie dans le "corps volé", envahi par les fantômes de l'espace extérieur, porteur de traits qui ne lui sont jamais propres. L'intime relation entre l'espace urbain et l'esprit sera de nouveau le sujet d'un autre livre de Catherine François: L'arbre absent.
Genetic engineering of glycinebetaine synthesis in plants: current status and implications for enhancement of stress tolerance (2000)

Metabolic acclimation via the accumulation of compatible solutes is regarded as a basic strategy for the protection and survival of plants in extreme environments. Certain plants accumulate significant amounts of glycinebetaine (betaine), a compatible quaternary amine, in response to high salinity, cold and drought. It is likely that betaine is involved in the protection of macrocomponents of plant cells, such as protein complexes and membranes, under stress conditions. Genetic engineering of the biosynthesis of betaine from choline has been the focus of considerable attention as a potential strategy for increasing stress tolerance in stress-sensitive plants that are incapable of synthesizing this compatible/protective solute. Three distinct pathways for the synthesis of betaine have been identified in spinach, Escherichia coli and Arthrobacter globiformis, and various genes and cDNAs for the proteins involved are available. Moreover, each of the pathways has been exploited to a greater or lesser extent in efforts to convert betaine-deficient plants to betaine accumulators. In this review, the potential of several recent examples of transgenic approaches to the enhancement of stress tolerance in plants is summarized and discussed.
Architecture Design for H.264/AVC Integer Motion Estimation with Minimum Memory Bandwidth (2007)

Motion estimation (ME) is the most critical component of a video coding system, and it also dominates the major part of computation complexity and memory bandwidth. For H.264/AVC integer motion estimation (IME), this paper presents a novel memory-access and computation efficient full-search block-matching hardware architecture. With the highest level of on-chip data reuse, one-access for off-chip reference pixels is achieved, and the off-chip memory bandwidth is thus minimized. By distributed data caching and virtual connection of reference picture boundaries, the data traffic scheduling is simple, regular and efficient. The computation engine employs a two-dimensional (2-D) systolic processor array to calculate the absolute differences in single-instruction multiple-data (SIMD) manner, and 2-D adder trees to sum up the absolute differences, all with 100% utilization. The proposed architecture fully supports variable block-size matching of H.264/AVC, and can produce 41 sums of absolute differences (SADs) for one search point every cycle without bubble. The architecture is described in parameterized design, and an implementation for standard-definition digital TV encoding applications is presented. Theoretical analysis and experimental results show that, the proposed architecture can achieve the minimum off-chip memory bandwidth and the maximum computational performance.
Evaluating performance of Android platform using native C for embedded systems (2010)

The Android platform used for mobile devices can be applied to embedded systems, such as robot control systems. Developers should create applications by using Java language provided by Android SDK for embedded systems operated via Android platforms. However, in many existing embedded systems, developers have written applications for controlling the system by using C language. Android NDK makes it possible for developers to easily reuse such legacy code written in C/C++ languages. In this paper, we show the difference in terms of performance between an Android application using native code library from C source and an Android application using the same algorithm written in Java language only. We conducted an experiment on five parts: JNI communication delay, integer calculation, floating-point calculation, memory access algorithm, and heap memory allocation algorithm. This paper presents a guideline for an effective way to use native code libraries in Android applications.
Eosinophil major basic protein induces degranulation and IL-8 production by human eosinophils. (1995)

Eosinophil granule proteins, such as major basic protein (MBP), eosinophil peroxidase (EPO), and eosinophil cationic protein (ECP), possess a wide range of biologic activities including the ability to activate other cells, such as basophils, neutrophils, and platelets. Here we have analyzed the effects of these proteins on eosinophils themselves. MBP and EPO, at concentrations as low as 0.1 micrograms/ml, induced eosinophil degranulation as measured by release of eosinophil-derived neurotoxin (EDN); in contrast, ECP, at 1 micrograms/ml, was inactive. MBP (10 micrograms/ml) and EPO (0.1 micrograms/ml) induced EDN release comparable with one of the strongest agonists for eosinophils, secretory IgA. Pretreatment of cells with dibutyryl cAMP or cytochalasin B completely abolished the EDN release induced by MBP and EPO, suggesting that the effects of MBP and EPO are not due to cytotoxic lysis of the cells. Degranulation induced by MBP was only partially dependent on calcium, and no elevation of intracellular Ca2+ concentration ([Ca2+]i) was observed in eosinophils stimulated with MBP. MBP stimulated the production, up to eightfold, of IL-8 by eosinophils in a dose-dependent manner. The MBP-stimulated expression of IL-8 mRNA by eosinophils was confirmed by reverse transcription-PCR. The MBP-stimulated production of IL-8 was inhibited by actinomycin D, but not by cyclosporin A. Furthermore, MBP and calcium ionophore ionomycin synergistically induced production of leukotriene C4 from eosinophils. Thus, MBP and EPO may act as autocrine mediators in the pathogenesis of eosinophil-associated diseases, such as bronchial asthma.
Surface Wave Versus Body-Wave Magnitude (1971)

Research Article| October 01, 1971 Surface Wave Versus Body-Wave Magnitude David W. Gordon David W. Gordon Earth Sciences Laboratories, National Oceanic & Atmospheric Administration, Boulder, Colorado Search for other works by this author on: GSW Google Scholar Seismological Research Letters (1971) 42 (3-4): 21–28. https://doi.org/10.1785/gssrl.42.3-4.21 Article history first online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation David W. Gordon; Surface Wave Versus Body-Wave Magnitude. Seismological Research Letters 1971;; 42 (3-4): 21–28. doi: https://doi.org/10.1785/gssrl.42.3-4.21 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search nav search search input Search input auto suggest search filter All ContentBy SocietySeismological Research Letters Search Advanced Search This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not currently have access to this article.
A new approach for active control of sound transmission through an elastic plate backed by a rectangular cavity (1993)

A new technique for controlling noise transmission into a cavity using piezoelectric actuators on an elastic plate is discussed. This study involves construction of a fully coupled acoustics/plate interaction model. This model is used to guide development of a new active noise control method. In real implementation, this approach does not require adaptive signal processing such as the least-mean squares (LMS) method to minimize the acoustic energy in the cavity for control [Pan et al., J. Acoust. Soc. Am. 87, 2098–2108 (1990)]. It shares a similar concept with the plate velocity feedback control. However, the plate velocity feedback control is effective only for the plate controlled modes, whereas the new method is effective for both the plate and cavity controlled modes. A comparison of the simulations using the velocity feedback and the least mean squares method with the new technique will be discussed.
Evidence for nanoscale phase separation of stressed–rigid glasses (2003)

Ternary (Ge2X3)x(As2X3)1−x glasses with X = S or Se are of interest because they span a mean coordination number r in the 2.40 < r < 2.8 range that is characteristic of stressed–rigid glasses. We have examined X = S glasses in Raman scattering and T-modulated differential scanning calorimetry measurements over the 0 < x < 1.0 range. Glass transition temperatures, Tg(x), increase monotonically in the 0 < x < 0.8 range and decrease thereafter (0.8 < x < 1) to display a global maximum near x = 0.8. Raman scattering provides evidence of sharp modes of As4S4 and As4S3 monomers, with scattering strength of these modes showing a global maximum near x = 0.3 and 0.5 respectively. The results suggest that at low x (0 < x < 1/2), addition of Ge2S3 to the As2S3 base glass results in insertion of Ge(S1/2)4 tetrahedra in the As(S1/2)3-based backbone as compensating As-rich monomers segregate from the backbone to deliver the requisite S. At higher x (0.4 < x < 0.8), the Ge2S3 additive continues to enter the glass in a majority (As2S3)(GeS2) backbone and several minority nanophases including an ethane-like Ge2(S1/2)6 and a distorted rock-salt-like GeS. In the 0.8 < x < 1 range, the nanophases grow qualitatively at the expense of the backbone as Tg values decrease and the end-member composition (x = 1) is realized. Heterogeneity of glasses near x = 1/2 or mean coordination, r = 2.60 derives intrinsically from the presence of several minority nanophases and a majority backbone showing that stressed–rigid networks usually phase separate on a nanoscale.
Fusing Landsat and MODIS Data for Vegetation Monitoring (2015)

Crop condition and natural vegetation monitoring require high resolution remote sensing imagery in both time and space - a requirement that cannot currently be satisfied by any single Earth observing sensor in isolation. The suite of available remote sensing instruments varies widely in terms of sensor characteristics, spatial resolution and acquisition frequency. For example, the Moderate-resolution Imaging Spectroradiometer (MODIS) provides daily global observations at 250m to 1km spatial resolution. While imagery from coarse resolution sensors such as MODIS are typically superior to finer resolution data in terms of their revisit frequency, they lack spatial detail to capture surface features for many applications. The Landsat satellite series provides medium spatial resolution (30m) imagery which is well suited to capturing surface details, but a long revisit cycle (16-day) has limited its use in describing daily surface changes. Data fusion approaches provide an alternative way to utilize observations from multiple sensors so that the fused results can provide higher value than can an individual sensor alone. In this paper, we review the Spatial and Temporal Adaptive Reflectance Fusion Model (STARFM) and two extended data fusion models (STAARCH and ESTARFM) that have been used to fuse MODIS and Landsat data. The fused MODISLandsat results inherit the spatial details of Landsat (30 m) and the temporal revisit frequency of MODIS (daily). The theoretical basis of the fusion approach is described and recent applications are presented. While these approaches can produce imagery with high spatiotemporal resolution, they still rely on the availability of actual satellite images and the quality of ingested remote sensing products. As a result, data fusion is useful for bridging gaps between medium resolution image acquisitions, but cannot replace actual satellite missions.
Application of Accelerators in Research and Industry (1997)

Abstracts of individual items from the conference were prepared separately for the data base. (GHT)