gebhart/patrepeval huggingface dataset:
Optimizing profit and performance for multi-homed mobile hotspots (2005)

Broadband Internet access in mobile hotspots (e.g. public transport vehicles) through high-speed on-board local area networks and mobile routers is becoming an increasingly popular area of research and development. Mobile hotspot operators can provide faster, cheaper, and more stable communication services to on-board passengers using the multi-homing technique; whereby the mobile router is connected to a diverse array of wireless access technologies (e.g., GPRS, UMTS, 802.11) through a multiplicity of wireless service providers. As the set of available access networks may change frequently during each trip, the challenge for the mobile hotspot operators is to decide on how to "best" distribute the user data traffic among the multiple access networks. In this paper, we proposed a new business model and a user traffic distribution algorithm that aims to maximize the profit for the mobile hotspot operator while providing an acceptable level of service. We also provide results from a detailed simulation study of this algorithm under various usage probability distributions.
Response by Piroth et al to Letter Regarding Article, “Prognostic Value of Fractional Flow Reserve Measured Immediately After Drug-Eluting Stent Implantation” (2017)

We thank Dr Uretsky et al for suggesting to check for potential differences in baseline characteristics and-more importantly-in outcome between patients with and patients without post-percutaneous coronary intervention fractional flow reserve (post-PCI FFR) measurements. It is indeed likely that procedural characteristics, not captured by the case record form, may have influenced the operator to decide to perform or not to perform the final FFR measurements. Checking for these differences in outcome might increase the generalizability of the conclusions. We will therefore perform this analysis in the near future.
A Method for Studying Optical Eigen Modes in Cholesteric Liquid Crystals by Using Stress Plate Modulators in Tandem (1982)

An apparatus has been constructed for the direct study of the optical eigen modes (OEM's). The apparatus consists of an He–Ne laser, a linear polarizer (LP), a stress plate modulator (SPM), another SPM, another LP and a photomultiplier tube (PMT). A sample is placed between the SPM's, and the first combination of LP and SPM acts as a dynamic elliptical polarizer and the second one constitutes the analyzer which is always perpendicular to the polarizer. The output signal from the PMT is recorded in a transient memory and is accumulated and processed by a microcomputer. Taking the OEM propagating along the cholesteric helical axis as a test example, we calculated the temporal change in the PMT output signal; it indicates the existence of an ellipticity which gives zero transmittance. The calculated dependence of the ellipticity on wavelength agrees qualitatively with that of the true OEM, except for the region near or in the characteristic reflection. By performing actual measurement with a monodomain cholesteric film at a certain wavelength, we confirmed that the apparatus works well.
Bianisotropic Metasurfaces for Optimal Polarization Control: Analysis and Synthesis (2014)

Two-dimensional metamaterials (metasurfaces) are desirable for their ability to modify electromagnetic fields--for example, producing perfect absorbers for stealth technologies. Metasurfaces reported to date, however, have demonstrated only limited control over the polarization and phase of these fields. In this work, the authors incorporate metamaterial anisotropy and chirality into calculations to derive simple, general, closed-form expressions relating constituent parameters of an arbitrary bianisotropic metasurface to its reflection and transmission behaviors.
The actor in training (1961)

This book aims to help the teacher of Acting and his pupil--the novice who aspires to become proficient in the most elusive of arts. In it no distinction is made between the amateur and professional but only between the good and bad actor.from the author's introduction
Designed Coupling of C<sub>1</sub> Ligands: Organometallic Model Reactions (1991)

With the planned synthesis of thermally stable, mononuclear bis(carbyne) complexes and the subsequent CC coupling of the two carbyne ligands to give an alkyne, F. Filippou et al. have been able to fully confirm the mechanism of C 1 + C 1 ‐coupling reactions using tungsten complexes. This mechanism could also play a role in the CC‐coupling reactions of carbonyl‐with carbonyl‐ and of carbonyl‐with isocyanide‐ligands to give the corresponding alkyne ligands (see also Communication on p. 1167ff.).
Estudo da borracha natural por meio de técnicas de caracterizaçăo de dielétricos (2006)

p 15 d -polarizabilidade dipolar; p 15 p -momento dipolar da molcula; p 15
Adjacent Satellite and Ground Station Interference (1989)

An overview of adjacent satellite interference is presented, including a discussion of national and international regulatory activity, methods of coordinating systems, and the four basic ways of reducing interference. A typical link assessment shows how this interference is included with other interference and noise sources. A comparative evaluation of systems operating in different frequency bands and within different satellite spacing environments is given as an example of the potential effect of adjacent satellite interference on satellite and ground station design. The article concludes that in the Ku-band, satellites providing a direct broadcast satellite (DBS) service in the fixed satellite service (FSS) bands require significantly larger receive antennas on the ground than Ku-band satellites in the broadcasting satellite services (BSS) bands.
Non-syntenic genes drive RTCS-dependent regulation of the embryo transcriptome during formation of seminal root primordia in maize (<i>Zea mays</i>L.) (2016)

Seminal roots of maize are pivotal for early seedling establishment. The maize mutant rootless concerning crown and seminal roots (rtcs) is defective in seminal root initiation during embryogenesis. In this study, the transcriptomes of wild-type and rtcs embryos were analyzed by RNA-Seq based on histological results at three stages of seminal root primordia formation. Hierarchical clustering highlighted that samples of each genotype grouped together along development. Determination of their gene activity status revealed hundreds of genes specifically transcribed in wild-type or rtcs embryos, while K-mean clustering revealed changes in gene expression dynamics between wild-type and rtcs during embryo development. Pairwise comparisons of rtcs and wild-type embryo transcriptomes identified 131 transcription factors among 3526 differentially expressed genes [false discovery rate (FDR) <5% and |log2Fc|≥1]. Among those, functional annotation highlighted genes involved in cell cycle control and phytohormone action, particularly auxin signaling. Moreover, in silico promoter analyses identified putative RTCS target genes associated with transcription factor action and hormone metabolism and signaling. Significantly, non-syntenic genes that emerged after the separation of maize and sorghum were over-represented among genes displaying RTCS-dependent expression during seminal root primordia formation. This might suggest that these non-syntenic genes came under the transcriptional control of the syntenic gene rtcs during seminal root evolution. Taken together, this study provides first insights into the molecular framework underlying seminal root initiation in maize and provides a starting point for further investigations of the molecular networks underlying RTCS-dependent seminal root initiation.
Residual stress modelling by experimental measurements and finite element analysis (1990)

The paper describes an experimental-numerical technique for modelling plane residual stress fields with application to steel slabs containing laser welds of different geometry. This technique is based on the analysis of the strain measured by several small-size strain gauges as a function of the depth of a narrow slot which was cut in the slab itself in small increments. This information was combined with sensitivity coefficients obtained via finite element models in order to derive initial strain distributions for the welded plates. These distributions allowed a prediction to be made of the residual stresses acting in generic bodies extracted from the original plates. The stress fields predicted for square specimens cut from the slabs were then compared with the measured values, showing a fairly good agreement.
ChemInform Abstract: Hydrogen Impurities in Chemical Bath Deposited CdS. (1999)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Assessing the Perceived Needs of Patients Attending an Outpatient Melanoma Clinic (1999)

AbstractAmong 300 randomly selected eligible patients with melanoma identified from outpatient records at a melanoma clinic, 198 signed a consent form and subsequently received a Cancer Needs Questionnaire to complete at home and return. Among these patients, 179 completed and returned the questionnaire. The questionnaire includes items pertaining to five categories of needs: psychological, health information, physical and daily living, patient care and support, and interpersonal communication. Twelve melanoma-specific items also were included. The prevalence of individual needs ranged from 14% to 43%, and 6 of the 10 highest-ranked needs concerned health information. Patients' demographic and disease and treatment variables were related to needs within each category. The findings suggest that more research is needed to measure patients' needs routinely, to identify patient groups with specific needs, and to develop methods to meet their needs effectively.Key Words: Melanomapsychological needshealth needsphysical needspatient-care needsinterpersonal communication needs
Design and fabrication of giant micromirrors using electroplating-based technology (2005)

Giant micromirrors with large scanning deflection and good flatness are required for many space and terrestrial applications. A novel approach to manufacturing this category of micromirrors is proposed. The approach combines selective electroplating and flip-chip based technologies. It allows for large air gaps, flat and smooth active micromirror surfaces and permits independent fabrication of the micromirrors and control electronics, avoiding temperature and sacrificial layer incompatibilities between them. In this work, electrostatically actuated piston and torsion micromirrors were designed and simulated. The simulated structures were designed to allow large deflection, i.e. piston displacement larger than 10 μm and torsional deflection up to 35°. To achieve large micromirror deflections, up to seventy micron-thick resists were used as a micromold for nickel and solder electroplating. Smooth micromirror surfaces (roughness lower than 5 nm rms) and large radius of curvature (R as large as 23 cm for a typical 1000×1000 μm 2 micromirror fabricated without address circuits) were achieved. A detailed fabrication process is presented. First piston mirror prototypes were fabricated and a preliminary evaluation of static deflection of a piston mirror is presented.
Anodic Stripping Voltammetry Enhancement by Redox Magnetohydrodynamics (2004)

The effect of an external magnetic field on linear scan anodic stripping voltammetry (ASV) in solutions of 10(-6)-10(-7) M concentrations of lead, cadmium, and copper at mercury films on glassy carbon electrodes has been investigated. A high concentration of Hg(2+) was added to the analyte solution to induce a large cathodic current during the deposition step. Therefore, a large Lorentz force from the net flux of charge through the magnetic field resulted in convection due to magnetohydrodynamics. The faster delivery of analytes to the mercury film electrode during deposition caused an increase in the anodic stripping peaks. The effect of varying Hg(2+) concentrations (0-60 mM) and magnetic field strengths (0-1.77 T) on the enhancement of the stripping peaks was investigated. Enhancements as large as 129% for peak currents and 167% for peak areas were observed. An enhancement of approximately 100% was observed when 60 mM Fe(3+) replaced high concentrations of Hg(2+). This method of convection exhibits promise for small-volume ASV analysis with possible improved limits of detection and decreased preconcentration times.
High power two-micron fibre-bulk hybrid lasers (2004)

The design of high-power efficient solid-state lasers with good output beam quality has long been a general goal of many researchers within the solid-state laser community. Progress towards the realization of such solid-state lasers has mainly been limited by poor brightness and limited choice of operating wavelengths of the optical sources available to pump such lasers. <br/><br/>This thesis presents the results of an investigation into a new approach for power and brightness scaling of two-micron solid-state lasers. The strategy described in this thesis is based on reduction of heat generation and heat loading within the laser medium. This was achieved by employing a fibre-bulk hybrid scheme; where a high-power diode-pumped double-clad fibre laser is used to end pump a bulk solid-state laser. Thus, the work described here is split into two related research areas. <br/><br/>The first area of research was devoted to the construction of a high-power, tunable two-micron source based on thulium(Tm)-doped silica fibre. The result was a tunable Tm fibre laser that produced a maximum output power of 10.5W at a wavelength of 1921nm for 44W of launched diode power at 790nm. The output of the laser was tunable over a wavelength range of 215nm from 1855nm to 2070nm at multi-watt power levels, and over 150nm from 1860nm to 2010nm at output power levels in excess of 9W. <br/><br/>In this part of the research results for the first wavelength-combined Tm-doped silica fibre laser system with maximum output power of 14W on four lines at wavelengths, 1926nm, 1957nm, 1980nm and 2000nm, have also been presented. The aim of this work was to explore a new concept for power scaling in fibre lasers. The beam-combined system was tunable over a range of 200nm from 1900nm to 2100nm at multi-watt power levels, and over a range of 120nm, from 1900nm to 2020nm, at power levels in excess of 10W. Beam propagation factors, M2, of the beam-combined laser system were equal to; Mx2 ~ 4.9 and My2 ~ 4, in the x-z and y-z planes, respectively. Potential sources of degradation in beam quality of the system were also investigated. <br/><br/>In the second part of the research a high-power tunable Tm-doped silica fibre laser was used to end-pump a Ho:YAG crystal. Ho:YAG has been chosen due to its robust thermo-mechanical properties and favourable spectroscopic characteristics. Highly efficient room-temperature operation of a Ho:YAG laser has been demonstrated. 5.2W of output at 2097nm in a near diffraction-limited beam from a Ho:YAG laser was achieved using 9.1W of incident pump power from a Tm-doped silica fibre laser at 1905nm. The slope efficiency with respect to incident pump power (80%) was close to the theoretical maximum taking into account the pump absorption efficiency, resonator losses and output coupling loss. The optical-to-optical efficiency of the laser was 57%. Room-temperature laser operation of Ho:YAG lasers with different Ho3+ concentrations was also investigated. The design and performance of these lasers for highly efficient continuous-wave operation is briefly discussed.
Characterization and properties of plasma polymerized 2-vinylpyridine (1979)

The chemical structure, aging, thermal, and adhesive behavior of plasma-deposited 2-vinylpyridine has been investigated. The molecular structure of the plasma polymer is significantly different from the conventional, linear polymer and is strongly dependent on plasma reactor variables. Additional cyano, methyl, and olefinic groups were identified in the plasma polymer, and aromaticity retention was reduced at the more severe (low pressure, high rf power) reactor conditions studied. Post-deposition oxidation occurred, which followed approximately first order kinetics initially (..delta..E approx. 11.6 Kcal/mole, with approx. 25% conversion of aromatic rings to an aromatic ketone in 4.5 months at 23/sup 0/C). Oxidation was significantly reduced in vacuum, inert gas, and hydrogen atmospheres. Thermal weight loss began at relatively low temperatures and appeared to accompany an exothermic, irreversible cross-linking reaction which began at about 100/sup 0/C. Principle low temperature decomposition products were low molecular weight gases (primarily, CO/sub 2/) and 2-methylpyridine. A quantitative tensile-pull adhesion test was developed. Using this technique, the plasma polymer-aluminum cohesive bond strength was found to be 480 psi and was degraded at high humidity levels.
Memoryless Discrete-Time Signal Detection in Long-Range Dependent Noise (2004)

The problem of designing optimum memoryless detectors for known signals in long-range dependent (LRD) noise is considered. In particular, under the performance criterion of asymptotic relative efficiency (ARE), optimum memoryless detection in LRD noise is investigated by exploiting the Hermite expansions. The detectors considered have the form of a nonlinearity followed by an accumulator and threshold comparator. It is shown that when the noise is LRD and Gaussian, all nonlinearities with Hermite rank one are asymptotically equivalent in terms of efficiency and are most powerful. Moreover, the optimum nonlinearities with Hermite rank greater than one are given by the corresponding Hermite polynomials. The case of non-Gaussian LRD noise that can be derived by nonlinear transformation of Gaussian noise is also considered. In this case, the globally optimum nonlinearity is very difficult to obtain in general. Instead, we proposed a suboptimal nonlinearity, which is given by a linear combination of the corresponding locally optimum detector and the inverse of the transform function generating the noise. Simulations show that the proposed detector outperforms the locally optimal detector for LRD non-Gaussian noise.
Adsorption of chitin derivatives onto liposomes: Optimization of adsorption conditions (1998)

A 2(4) factorial design is used to optimize the adsorption conditions of the hydrophilic anionic polyelectrolytes. Carboxymethylchitin (CMC) and Carboxymethyl/Glycolchitin (CO) onto liposomes at physiological ionic strength (I) and pH using phosphate buffered saline (PBS, I = 154 mM, pH = 7.4). Positive ([+]) or high surface affinity liposomes (DSPC:CHOL:DMTAP, 5:4:1), and Neutral ([N]) or low surface affinity liposomes (DSPC:CHOL, 1:1) were used as adsorption surfaces. Results of the calculations of the main effects indicate that polymer molecular weight (mwt), Surface Affinity (S), Number of Adsorption Shots (Sh), Temperature (T), and the combinations mwt x S, mwt x Sh are the most important process parameters. Results of a study conducted at T = 37 degrees C show that no loss occurs from the positive surface at the highest particle concentration, Np = 4.043 x 10(11). Finally, the extent of polymer-induced particle aggregation is decreased when the diameter of the uncoated liposomes is doubled from 0.22 to 0.45 micron. These results are as expected, given the stiffness and the dimensions of the macromolecules.
Secretory products of guinea pig epicardial fat induce insulin resistance and impair primary adult rat cardiomyocyte function (2010)

Epicardial adipose tissue (EAT) has been implicated in the development of heart disease. Nonetheless, the crosstalk between factors secreted from EAT and cardiomyocytes has not been studied. Here, we examined the effect of factors secreted from EAT on contractile function and insulin signalling in primary rat cardiomocytes. EAT and subcutaneous adipose tissue (SAT) were isolated from guinea pigs fed a high-fat (HFD) or standard diet. HFD feeding for 6 months induced glucose intolerance, and decreased fractional shortening and ejection fraction (all P < 0.05). Conditioned media (CM) generated from EAT and SAT explants were subjected to cytokine profiling using antibody arrays, or incubated with cardiomyocytes to assess the effects on insulin action and contractile function. Eleven factors were differentially secreted by EAT when compared to SAT. Furthermore, secretion of 30 factors by EAT was affected by HFD feeding. Most prominently, activin A-immunoreactivity was 6.4-fold higher in CM from HFD versus standard diet-fed animals and, 2-fold higher in EAT versus SAT. In cardiomyocytes, CM from EAT of HFD-fed animals increased SMAD2-phosphorylation, a marker for activin A-signalling, decreased sarcoplasmic-endoplasmic reticulum calcium ATPase 2a expression, and reduced insulin-mediated phosphorylation of Akt-Ser473 versus CM from SAT and standard diet-fed animals. Finally, CM from EAT of HFD-fed animals as compared to CM from the other groups markedly reduced sarcomere shortening and cytosolic Ca(2+) fluxes in cardiomyocytes. These data provide evidence for an interaction between factors secreted from EAT and cardiomyocyte function.
Effect of Heat Treatment and Alloying Element on Impact Energy Absorption of AlSi10 Casting Alloys (2014)

The automotive applications using heat-treatable aluminum cast alloys are designed for high impact energy which can be improved using specified casting process and different heat treatment. In this study an economical and convent squeeze casting machine was used to produce the u-profile with 3mm wall thickness under controlled solidification conditions. The casted samples were used for mechanical and metallographical characterization. The mechanical properties of alloys containing different amount of Fe, Mn und Mg were determined as a function of different heat treatment condition such as modified T7 and Silicon Spheroidization Treatment (SST). The microstructure of casted alloys were quantificational determined by a combination of light optical microscope and scanning electron microscope (SEM) equipped with an energy dispersive spectroscopy (EDS) module to identify the morphology and chemical composition of intermetallic eutectic phases. The results of Charpy impact test show that impact energy increases after modified T7 or SST heat treatment significantly compared with the as cast state. Furthermore the impact energy is less in the higher Mg containing alloys (0.15wt.%) compared with the less Mg containing alloy (0.07wt.%).
Comparison of Isothiocyanate Metabolite Levels and Histone Deacetylase Activity in Human Subjects Consuming Broccoli Sprouts or Broccoli Supplement (2011)

Increased consumption of cruciferous vegetables such as broccoli may reduce the risk of various cancers. Myrosinase is required to convert dietary glucosinolates from broccoli into bioactive isothiocyanates. We evaluated isothiocyanate excretion profiles in healthy subjects who consumed broccoli sprouts or broccoli supplement (no myrosinase) with equivalent glucosinolate content. Urinary metabolites of two major isothiocyanates, sulforaphane and erucin, were measured by liquid chromatography coupled with tandem mass spectrometry. Peak excretion of sulforaphane and erucin was higher and occurred sooner in subjects who consumed broccoli sprouts as compared to subjects who consumed the supplement. A subject-dependent shift in the ratio of urinary sulforaphane to erucin metabolites was observed in both groups, indicating conversion of sulforaphane to erucin. Lower histone deacetylase activity was observed in the peripheral blood mononuclear cells only in subjects consuming sprouts. Fresh broccoli sprouts differ from broccoli supplements in regards to excretion of isothiocyanates and bioactivity in human subjects.