gebhart/patrepeval huggingface dataset:
58.5L: <i>Late‐News Paper</i> : Engineering a Retinal Scanning Laser Display with Integrated Accommodative Depth Cues (2003)

Abstract A deformable membrane mirror (DMM) dynamically varies image focus in a retinal scanning laser display. The display presents variable accommodation cues with the goal of matching the vergence cues generated by stereo images. This study examines the effects of the DMM on beam diameter and power at the exit pupil of the display.
Chris Johnson. <i>Essays on George F. Walker: Playing with Anxiety</i> (2000)

"Chris Johnson. Essays on George F. Walker: Playing with Anxiety." Theatre Research in Canada, 21(2), pp. 207–209
The new method of license key management for content distribution system $key management for grouping content (2003)

The importance of copyright protection has increased with the rapid spread of content distribution services. In one means of copyright protection, contents are protected by encryption. In this method, license keys are essential and distributed to decrypt contents. The paper presents a new method of license key management that can manage contents as groups. It uses some group keys in addition to license keys for decrypting content. Each of the group keys can decrypt all contents belonging to each group. As an example of applying the proposed method, a cooking recipe distribution system is introduced.
Control of Grain Insects by Microwave Power<sup>*</sup> (1968)

AbstractA method is presented for the detection and control of insects in samples of wheat and flour. Experimental arrangements are described for evaluating the scattering coefficients, dielectric constant and loss tangent of wheat and flour at 10 GHz. These results are presented in graphical form and used in the design of equipment for testing penetration and mortality at 2.45 GHz. It is shown that the moisture content in wheat drops by less than l% for exposure times greater than that corresponding to total mortality of three common types of wheat insects (Tribolium confusum, Sitophilus granarius and Cryptolestes ferrugineus). Finally it is concluded that the illumination of bulk wheat by micro-wave power is not adequate for practical treatment unless the infested wheat is circulated in a region of high electric field. Notes* Presented at the 1968 Symposium on Micro- wave Power, Boston, Massachusetts, March 22, 1968, paper E4. Final manuscript received June 21, 1968.
On the Mechanism of Multiple Lysine Methylation by the Human Mixed Lineage Leukemia Protein-1 (MLL1) Core Complex (2009)

Transcription in eukaryotic genomes depends on enzymes that regulate the degree of histone H3 lysine 4 (H3K4) methylation. The mixed lineage leukemia protein-1 (MLL1) is a member of the SET1 family of H3K4 methyltransferases and is frequently rearranged in acute leukemias. Despite sequence comparisons that predict that SET1 family enzymes should only monomethylate their substrates, mono-, di-, and trimethylation of H3K4 has been attributed to SET1 family complexes in vivo and in vitro. To better understand this paradox, we have biochemically reconstituted and characterized a five-component 200-kDa MLL1 core complex containing human MLL1, WDR5, RbBP5, Ash2L, and DPY-30. We demonstrate that the isolated MLL1 SET domain is a slow monomethyltransferase and that tyrosine 3942 of MLL1 prevents di- and trimethylation of H3K4. In contrast, a complex containing the MLL1 SET domain, WDR5, RbBP5, Ash2L, and DPY-30, displays a marked approximately 600-fold increase in enzymatic activity but only to the dimethyl form of H3K4. Single turnover kinetic experiments reveal that the reaction leading to H3K4 dimethylation involves the transient accumulation of a monomethylated species, suggesting that the MLL1 core complex uses a non-processive mechanism to catalyze multiple lysine methylation. We have also discovered that the non-SET domain components of the MLL1 core complex possess a previously unrecognized methyltransferase activity that catalyzes H3K4 dimethylation within the MLL1 core complex. Our results suggest that the mechanism of multiple lysine methylation by the MLL1 core complex involves the sequential addition of two methyl groups at two distinct active sites within the complex.
CYCLOADDITION REACTION OF HEXAFLUOROTHIOACETONE DIMER IN THE PRESENCE OF FLUORIDE ION (1973)

Abstract 2,2,4,4-Tetrakis(trifluoromethyl)-1,3-dithietane [1] in KF/DMF system reacted with dienes such as anthracene and styrene , and with monoenes such as cyclohexene and dimethyl maleate, to give corresponding cycloadducts of these alkenes with hexafluorothioacetone [2].
Strategies for Rapid GC Impurity Analysis of High-Purity Solvents I: Instrumentation and Procedures (1991)

Timing considerations are discussed for an instrumentation system designed for the rapid determination of impurities at part-per-million (ppm) levels in high-purity solvents. Isothermal retention times in the range from a few seconds to about 20 s are obtained using 2–4-m lengths of 0.25-mm i.d. fused-silica capillary columns. The use of a cryofocusing inlet with flow direction control for performing solvent flush and backflush operations is described. A model is presented for the operation of the cryofocusing inlet system. The system can be used to collect a vapor sample at either end of the cryofocusing trap and reinject it as a relatively narrow plug. The effects of inlet system injection temperature on retention time are considered for samples injected from both the upstream and downstream ends of the trap.
Electrical and thermoelectric properties of nanocrystal substitutional semiconductor alloys Mg<sub>3</sub>(Bi<sub><i>x</i></sub>Sb<sub>1−<i>x</i></sub>)<sub>2</sub>prepared by mechanical alloying (2006)

Nanocrystal substitutional semiconductor alloys Mg3(BixSb1−x)2 (nano-Mg3(BixSb1−x)2) with a mean grain size of ∼30 nm were prepared by mechanical alloying plus hot-pressing, and their dc electrical and thermoelectric properties were investigated from room temperature down to 20 K. The results indicated that lattice parameters a and c of nano-Mg3(BixSb1−x)2 increased linearly with increasing Bi content x, in agreement with Vegard's law. The dc resistivity ρ of nano-Mg3(BixSb1−x)2 decreased monotonically with increasing x, and a drop of over five orders of magnitude was reached at 300 K when x increased from 0 to 1. Moreover, the temperature behaviour of the resistivity of nano-Mg3(BixSb1−x)2 changed sensitively with x, and a transition from the semiconducting state (i.e. dρ/dT < 0) to the metallic state (dρ/dT > 0) occurred between x = 0.7 and 0.8. Meanwhile, this transition was verified by the measurements of the temperature behaviour of the Seebeck coefficient S of nano-Mg3(Bi1−xSbx)2 with different x. In addition, Mott's ρ ∝ T−1/4 law was observed at lower temperature regimes for the nano-Mg3(BixSb1−x)2 (x ≠ 0), suggesting the occurrence of hopping conduction. Although experiments showed that the Seebeck coefficient of nano-Mg3(Bi1−xSbx)2 decreased monotonically with x, their thermoelectric power factors PF changed non-monotonically, and a maximum PF of 1.4 µW cm−1 K−2 was achieved at room temperature for x = ∼0.8, which was more than three orders magnitude greater than that of monolithic Mg3Sb2.
Synthesis and Reactions of 4-Dimethylsulfuranylidene-2,3-dioxotetrahydrofuran Derivatives (1974)

Abstract The cyclic sulfonium ylides, 4-dimethylsulfuranylidene-2,3-dioxotetrahydrofuran derivatives (8), were synthesized in good yields by reactions of methyl and ethyl dimethylsulfuranylidenepyruvates (3 and 4) with carbonyl compounds. The reactions of 8 with p-toluenesulfonyl chloride and benzoyl chloride gave 4-methylthio-3-(p-toluenesulfonyloxy)- and 4-methylthio-3-benzoyloxy-2-oxo-2,5-dihydrofuran derivatives respectively in high yields. The ylides (8) reacted with mercaptans to afford 4-substituted products (14–16), whereas, on the reactions with thiourea, the demethylation of the dimethylsulfonium group proceeded exclusively.
Establishing a Secure Peer Identity Association Using IMS Architecture (2008)

The advent of ubiquitous computing and the convergence of the heterogeneous networks provide new opportunities for the new players to enter the operator market. While network access will be available everywhere, the multitude and diversity of the access operators makes it hard to rely on the old paradigms of static operator relationships guaranteeing the identity of the users end-to-end. Therefore, there is need for mechanisms that allow the endpoints get assurance about the identity of their counterparts. This paper investigates the possibility of taking advantage of IP multimedia subsystem (IMS) in a roaming scenario to signal the needed identity parameters between two communication endpoints, which are basing their trust evaluation on their own home operators. This allows establishing a host identity protocol (HIP) style identity association, which can be used to protect any subsequent communication between the same entities.
Gut microbiota density influences host physiology and is shaped by host and microbial factors (2019)

This article has been through an editorial process in which the authors decide how to respond to the issues raised during peer review. The Reviewing Editor's assessment is that all the issues have been addressed (see decision letter).
Acetylene Reduction (Nitrogen Fixation) by <i>Enterobacteriaceae</i> Isolated from Paper Mill Process Waters (1976)

Using selective media containing galactitol, over 130 Enterobacteriaceae have been isolated from paper mill process waters collected from different localities. These bacteria were extensively characterized and tested for acetylene-reducing (nitrogen-fixing) activity under anaerobic conditions. High activity was found in representatives of Klebsiella pneumoniae, Enterobacter aerogenes, Enterobacter cloacae, Erwinia herbicola, Citrobacter freundii, Citrobacter intermedius, and Escherichia coli. Under argon, nitrogenase synthesis was generally not repressed by 5 mM l-glutamate, l-aspartate, l-leucine or Casamino Acids (0.5 g/liter). In many strains, both the specific activities (nanomoles of C(2)H(4) per minute per milligram of protein) and the activities (nanomoles of C(2)H(4) per minute) had considerably declined after 24 h. In three selected strains, activity in intact cells grown under nitrogen was unaffected by the presence during assay of 10 mM l-amino acids or ammonium acetate. All of the strains examined were tolerant towards inactivation of nitrogen-fixing activity by 1.8% (vol/vol) oxygen during assay, and inactivation by up to 10% oxygen was partly reversible. Representatives of the six taxa synthesized nitrogenase in stirred aerobic cultures, though the protein concentrations attained were lower than under anaerobic conditions. It seems reasonable to suggest that under natural conditions, nitrogen fixation is able to contribute significantly to the nitrogen economy of the cells.
Microsystem for Field-Amplified Electrokinetic Trapping Preconcentration of DNA at Poly(ethylene terephthalate) Membranes (2009)

In electrokinetic trapping (EKT), the electroosmotic velocity of a buffer solution in one area of a microfluidic device opposes the electrophoretic velocity of the analyte in a second area, resulting in transport of DNA to a location where the electrophoretic and electroosmotic velocities are equal and opposite and DNA concentrates at charged nanochannels. The method does not require an optical plug localization, a considerable advantage as compared to preconcentration techniques previously presented. In the work reported here, the trapping process is preceded by a field-amplification in the sample reservoir to reduce trapping time, as field-amplified EKT is shown to be an effective technique to preconcentrate samples from larger volumes. A theoretical model explaining the principle of field-amplified EKT considers different ionic strengths and cross-sectional areas in the microchip segments. The model is supported by experimental data using nucleic acids and fluorescein as sample analytes. An incorporated poly(ethylene terephthalate) (PET) membrane provides anion exclusion due to a negatively charged surface. A fluidic counter flow supports the trapping process in 100 nm pores due to anion exclusion. An analysis of Joule heating gives evidence that temperature gradient focusing effects are negligible and charge exclusion is responsible for trapping. The theoretical model developed and experimentally demonstrated can be exploited for the preconcentration of cell free fetal DNA circulating in maternal plasma and other rare nucleic acid species present in large sample volumes.
New agents and approaches to the treatment of B-cell non-Hodgkin lymphoma (2010)

This review highlights advancements and the current state of knowledge by presenting clinical trial results as well as preclinical data and advances in prognostic and predictive factors that will pave the way to further progress in NHL.
Excimer laser writing of submicrometre period fibreBragggratings using phase-shifting mask projection (1995)

Submicrometre period, first-order Bragg gratings have been written in optical fibre, for the first time to the authors' knowledge, by projecting a phase-shifting mask. Gratings with a peak reflectivity of 85% at a Bragg wavelength of 1530 nm were recorded using single pulses from a broadband KrF excimer laser.
Error Minimized Extreme Learning Machine With Growth of Hidden Nodes and Incremental Learning (2009)

One of the open problems in neural network research is how to automatically determine network architectures for given applications. In this brief, we propose a simple and efficient approach to automatically determine the number of hidden nodes in generalized single-hidden-layer feedforward networks (SLFNs) which need not be neural alike. This approach referred to as error minimized extreme learning machine (EM-ELM) can add random hidden nodes to SLFNs one by one or group by group (with varying group size). During the growth of the networks, the output weights are updated incrementally. The convergence of this approach is proved in this brief as well. Simulation results demonstrate and verify that our new approach is much faster than other sequential/incremental/growing algorithms with good generalization performance.
Comparative analysis of the influence of nano- and microfillers of oxidized Al on the frictional-mechanical characteristics of UHMWPE (2010)

The influence of nano- and microfillers, including nanofibers and powder of Al2O3 and aluminum oxyhydrides AlO(OH) on the mechanical and tribological characteristics of ultrahigh-molecular-weight polyethylene (UHMWPE) is studied. It is found that modification of UHMWPE with nanofibers of Al2O3 within 0.1–0.5 wt % ensures a considerable increase in its hardness and multifold increase in its wear resistance. Modification with ultradisperse powders of Al2O3 (200–500 nm) in the same amounts has an insignificant effect on the polymer characteristics. Filling of UHMWPE with micron-sized particles (3–50 μm) in amounts of 20 wt % results in increased wear resistance of the original polymer, comparable with the wear resistance at low nanofiber content. X-ray diffraction analysis, IR spectroscopy, and electron microscopy are used to show that incorporation of Al2O3 nanofibers into UHMWPE results in the formation of a fundamentally different supermolecular structure in comparison with the use of microfillers.
Efficient construction of binary moment diagrams for verifying arithmetic circuits (1995)

BDD-based approaches cannot handle some arithmetic functions such as multiplication efficiently, while Binary Moment Diagrams proposed by Bryant and Chen (1994) provide compact representations for those functions. They reported a BMD-based polynomial-time algorithm for verifying multipliers. This approach requires high-level information such as specifications to subcomponents. This paper presents a new technique called backward construction which can construct BMDs directly from circuit descriptions without any high-level information. The experiments show that the computation time for verifying for n-bit multipliers is approximately n/sup 4/. We have successfully verified 64-bit multipliers of several type in 3-6 hours with 46 Mbyte of memory on SPARCstation 10/51. This result outperforms previous BDD-based approaches for verifying multipliers.
Development of the binocular-vision-enhanced mobile robot navigation (2011)

Active map learning for autonomous robots exploring in unknown environments is an essential and vital issue for robot navigation. However, many factors limit a robot's ability to learn accurate map models in practice. To enhance its learning capability, this paper proposed a binocular vision system, developed using IP web cameras and MATLAB image processing toolbox. It integrates knowledge from computer vision and robot navigation. Through the binocular vision system, binocular images are captured and analysed so that feature objects or shapes are identified. Together with sonar readings, this information is used in collision avoidance and map building. It is shown that the capability of active map learning is effectively realised by adopting this binocular vision system.
<title>Multiscale approach to the control of smart materials</title> (1995)

The development of control technology specifically for smart materials has lagged substantially behind that of the base materials, transducers and embedding techniques. Still, development of materials with ever- greater numbers of embedded elements continues, spurred by potential uses that require large arrays of sensors and actuators. No control technology suitable for such large arrays exists, however, and this presents a barrier to future applications. In this paper we report on work aimed at developing and demonstrating technology capable of controlling hundreds or thousands of sensors and actuators embedded in the base material. We have dubbed this the 'KIKO control problem' (Kilo- Input/Kilo-Output) for smart materials. This paper focuses on a new multiscale/multirate theory of hierarchical design based on the wavelet transform. In the context of this theory, we develop efficient and highly scalable implementations of control systems using multiprocessor architectures. The paper covers: a description of our multiscale control approach, simulation results on an Euler-Bernoulli beam, and open issues.
Semantic Tag-based Profile Framework for Social Tagging Systems (2012)

Journal Article Semantic Tag-based Profile Framework for Social Tagging Systems Get access I-Ching Hsu I-Ching Hsu * Department of Computer Science and Information Engineering, National Formosa University, No. 64, Wunhua Rd., Huwei Township, Yunlin County 632, Taiwan *Corresponding author: hsuic@nfu.edu.tw Search for other works by this author on: Oxford Academic Google Scholar The Computer Journal, Volume 55, Issue 9, September 2012, Pages 1118–1129, https://doi.org/10.1093/comjnl/bxs040 Published: 26 April 2012 Article history Received: 05 June 2011 Revision received: 15 March 2012 Published: 26 April 2012
Characterization of urease from Campylobacter pylori (1988)

Campylobacter pylori, a suspected agent of gastritis and peptic ulceration, rapidly hydrolyzes urea. Because urease serves as the basis of detection of the organism in gastric biopsies and may represent an important virulence factor, biochemical characteristics of the enzyme were determined. C. pylori was isolated from antral biopsies from 10 patients with complaints of abdominal pain or history of peptic ulcer disease. All isolates were urease positive, with an average rate of hydrolysis by cell lysates being 36 +/- 28 mumol of NH3 per min per mg of protein, more than twice that of Proteus mirabilis and 10 times that of other urinary tract isolates. The enzyme had an apparent molecular weight of 625,000 +/- 15,000 by column chromatography, an isoelectric point of 5.9, a Km of 0.8 +/- 0.1 mM urea, an optimal temperature of 45 degrees C, and an optimal pH of 8.2. Ten isolates tested produced ureases with identical electrophoretic mobilities on nondenaturing 5% polyacrylamide activity gels. Acetohydroxamic acid (100 micrograms/ml), hydroxyurea (85 micrograms/ml), flurofamide (0.05 micrograms/ml), and EDTA (8 mM) inhibited enzyme activity by 50%. Cell lysates retained 50% of initial urease activity after 6 days and 40% activity after 18 days when stored at 4 degrees C in 20 mM sodium phosphate, pH 6.8. At -70 degrees C for 18 days, 1 mM EDTA or 15% glycerol preserved 40 or 34%, respectively, of initial activity. The urease of C. pylori appears to be biochemically unique from the enzymes of other common urease-producing species.
Real-time adaptable and coherent rendering for outdoor augmented reality (2018)

This paper describes the development and evaluation of a color estimation method that is able to create more natural lighting conditions for outdoor-purposed augmented reality (AR) technology. In outdoor AR systems, the real outdoor light source (i.e., the sun) illuminates real objects, while a virtual light source illuminates the augmented virtual objects. These two light sources result in color differentials, with the real object and virtual object being visualized as a mixture of the colors induced by the two light sources. As such, there is a visible difference in color between the real object and the virtual object. Consequently, this visible color difference will vitiate the sense of immersion felt by the AR user. Thus, to overcome this problem, we have defined each RGB color channel value by analyzing the color generated by the outdoor light source and applied the defined values to the virtual light source to reduce the visibility of the color differential between the two light sources, thereby reducing the visualized incompatibility between the virtual object and the real background. In addition, using virtual objects to express weather events, in combination with the color estimation method, we were able to demonstrate that the proposed method can adequately adapt to and manage the weather changes that affect outdoor AR. The proposed method has the potential to improve the visual coincidence between the real outdoor background and virtual objects.
Using fuzzy relational databases to represent agricultural and environmental information. An example within the scope of olive cultivation in Granada. (2001)

A query system for several types of users and for information retrieval about olive cultivation and its environmental support in the province of Granada (Spain) is introduced. The system is based on fuzzy data and is flexible. The main problems which this model solves are those relating to uncertain and imprecise data processing (as in the case of environmental and cultivation information), spatial and punctual data representation, and fusion of cultivation-resulting and scientific-experimental data.