gebhart/patrepeval huggingface dataset:
Design orientated model and application of electronic ballasts for two toroidal ferrite coupled electrodeless lamps (2005)

Based on basic theories of transformer, a simplified design orientated model of two toroidal fertile coupled electrodeless fluorescent lamps along with their electronic ballasts is proposed. Based on this model, frequency domain analysis and design of the electronic ballasts for electrodeless lamps is investigated. The effect of the exciter coils of the electrodeless lamps in electronic ballasts is investigated, and some important characteristics are formulated and compared with that in electroded lamp ballasts. Simulating results of the model are compared with and verified by experimental results
Speech Bandwidth Extension Based on GMM and Clustering Method (2015)

Conventional Gaussian mixture model (GMM) Speech Bandwidth Extension (BWE) methods often suffer from the overly smoothed problem. Thus, a method of BWE based on a cluster process and GMM whose parameters are determined by expectation-Maximization (EM) is proposed. Firstly, a cluster process is used to cluster the low frequency and high frequency parameters, and then the GMM for each cluster is established. Later on, the parameters of low frequency are transformed to the parameters of high frequency according to the learned mapping function of the corresponding GMM. Self-organization Feature Mapping (SOFM) and Vector Quantization (VQ) are applied as the cluster. It is shown by subjective evaluation and objective evaluation that, the proposed method improves the quality of the synthesized speech signals compared with the conventional GMM-based BWE method and overcomes the over-smoothed problem caused by the traditional GMM-based BWE method largely.
Studies of Structure−Activity Relationship of Nitroxide Free Radicals and Their Precursors as Modifiers Against Oxidative Damage (1998)

The protective effects of stable nitroxides, as well as their hydroxylamine and amine precursors, have been tested in Chinese hamster V79 cells subjected to H2O2 exposure at fixed concentration or exposure to ionizing radiation. Cytotoxicity was evaluated by monitoring the viability of the cells assessed by the clonogenic assay. The compounds tested at fixed concentration varied in terms of ring size, oxidation state, and ring substituents. Electrochemical studies were carried out to measure the redox midpoint potentials. The studies show that in the case of protection against H2O2 exposure, the protection was determined by the ring size, oxidation state, and redox midpoint potentials. In general the protection factors followed the order nitroxides > hydroxylamines > amines. Both the six-membered ring nitroxides and substituted five-membered ring nitroxides were efficient protectors. For six-membered ring nitroxides, the compounds exhibiting the lowest midpoint potentials exhibited maximal protection. In the case of X-radiation, nitroxides were the most protective though some hydroxylamines were also efficient. The amines were in some cases found to sensitize the toxicity of aerobic radiation exposure. The protection observed by the nitroxides was not dependent on the ring size. However, the ring substituents had significant influence on the protection. Compounds containing a basic side chain were found to provide enhanced protection. The results in this study suggest that these compounds are novel antioxidants which can provide cytoprotection in mammalian cells against diverse types of oxidative insult and identify structural determinants optimal for protection against individual types of damage.
Relationship of Student Achievement and Grade of Entry into the Intermediate School (1984)

An investigation of the effect on achievement of the timing of the transition from elementary to intermediate school was undertaken. The sixth and seventh grade achievement scores of 1140 students who entered middle school in the sixth grade were compared to those of 1158 students who entered junior high school in the seventh grade. Results indicate that achievement is affected by the transition into middle school whether it occurs at grade six or seven.
Sub-additive ionic transport across arrays of solid-state nanopores (2014)

Nanopores, either biological, solid-state, or ultrathin pierced graphene, are powerful tools which are central to many applications, from sensing of biological molecules to desalination and fabrication of ion selective membranes. However, the interpretation of transport through low aspect-ratio nanopores becomes particularly complex as 3D access effects outside the pores are expected to play a dominant role. Here, we report both experiments and theory showing that, in contrast to naïve expectations, long-range mutual interaction across an array of nanopores leads to a non-extensive, sub-linear scaling of the global conductance on the number of pores N. A scaling analysis demonstrates that the N-dependence of the conductance depends on the topology of the network. It scales like G ∼ N/log N for a 1D line of pores, and like $G\sim \sqrt{N}$G∼N for a 2D array, in agreement with experimental measurements. Our results can be extended to alternative transport phenomena obeying Laplace equations, such as diffusive, thermal, or hydrodynamic transport. Consequences of this counter-intuitive behavior are discussed in the context of transport across thin membranes, with applications in energy harvesting.
Pairing Symmetry and Flux Quantization in a Tricrystal Superconducting Ring of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="normal">Y</mml:mi><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Ba</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Cu</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">O</mml:mi></mml:mrow><mml:mrow><mml:mn>7</mml:mn><mml:mo>−</mml:mo><mml:mi>δ</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math> (1994)

We have used the concept of flux quantization in superconducting $\mathrm{Y}{\mathrm{Ba}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{7\ensuremath{-}\ensuremath{\delta}}$ rings with 0, 2, and 3 grain-boundary Josephson junctions to test the pairing symmetry in high-${T}_{c}$ superconductors. The magnetic flux threading these rings at 4.2 K is measured by employing a scanning superconducting quantum interference device microscope. Spontaneous magnetization of a half magnetic flux quantum, $\frac{{\ensuremath{\Phi}}_{0}}{2}=\frac{h}{4e}$ has been observed in the 3-junction ring, but not in the 2-junction rings. These results are consistent with $d$-wave pairing symmetry.
<title>Fabrication of thin film metallic glass and its application to microactuators</title> (1999)

Metallic glasses are kinds of amorphous alloys. They are free from defects resulting from crystalline structures. Metallic glasses soften in a certain temperature range called the supercooled liquid region, which makes metallic glasses easily be formed into a 3D shape. This paper first describes a fabrication method for a thin film metallic glass (TFMG) using RF magnetron sputtering. Secondly A micro beam of TFMG is introduced. Although the fabricated micro beams bent due to the internal stress caused by stress was related by annealing the beams in the supercooled liquid region, and straight beams were fabricated. Secondly, curved micro beams of TFMG were micro formed by heating the straight beams again into the supercooled liquid state. Finally, a new type electrostatic microactuator of a conical spring shape was made of TFMG. CSLA was capable of stepwise motion vertical to the substrate. The 10 micrometers step height and 30 micrometers total height were realized.
Phenanthro[9,10-d]imidazole as a new building block for blue light emitting materials (2011)

The blue light emitting compound, BPPI, based on a phenanthro[9,10-d]imidazole group, is prepared by a facial synthetic process and exhibits excellent thermal stability, highly efficient fluorescence and balanced carrier injection. The double-layered device based on BPPI shows a higher maximum luminance and a lower turn-on voltage than the multi-layered one with an independent electron injection layer. The results suggest that the phenanthroimidazole unit is an excellent building block for tuning the carrier injection properties as well as blue emission.
Multimodal Presentation Markup Language MPML with emotion expression functions attached (2002)

With the increase of multimedia content in the WWW multimodal presentation the use of interactive life-like agents is becoming important. However, it is not easy for many people to write such multimodal presentations, due to the complexity of describing various behaviors of the character agent and the interaction of the particular character system with the individual (often low-level) description language. In order to overcome this complexity and to allow more people to write attractive multimodal presentations easily MPML (Multimodal Presentation Markup Language) Version 1.0 has been developed to provide a medium-level description language commonly applicable to many character systems. Also, a new emotion expression function is attached to MPML. With this function, we are able to express emotion-rich behavior of the character agent in MPML Version 2.0e. We present a simple introduction to MPML Version 1.0, and present the new functions in Version 2.0e. Some multimodal presentation contents are produced in the new version of MPML to show the effectiveness of the new emotion function.
Seroepidemiology of Human Polyomaviruses (2009)

In addition to the previously characterized viruses BK and JC, three new human polyomaviruses (Pys) have been recently identified: KIV, WUV, and Merkel Cell Py (MCV). Using an ELISA employing recombinant VP1 capsid proteins, we have determined the seroprevalence of KIV, WUV, and MCV, along with BKV and JCV, and the monkey viruses SV40 and LPV. Soluble VP1 proteins were used to assess crossreactivity between viruses. We found the seroprevalence (+/- 1%) in healthy adult blood donors (1501) was SV40 (9%), BKV (82%), JCV (39%), LPV (15%), KIV (55%), WUV (69%), MCV strain 350 (25%), and MCV strain 339 (42%). Competition assays detected no sero-crossreactivity between the VP1 proteins of LPV or MCV or between WUV and KIV. There was considerable sero-crossreactivity between SV40 and BKV, and to a lesser extent, between SV40 and JCV VP1 proteins. After correcting for crossreactivity, the SV40 seroprevalence was approximately 2%. The seroprevalence in children under 21 years of age (n = 721) for all Pys was similar to that of the adult population, suggesting that primary exposure to these viruses likely occurs in childhood.
Visual Clustering in Parallel Coordinates (2008)

Abstract Parallel coordinates have been widely applied to visualize high‐dimensional and multivariate data, discerning patterns within the data through visual clustering. However, the effectiveness of this technique on large data is reduced by edge clutter. In this paper, we present a novel framework to reduce edge clutter, consequently improving the effectiveness of visual clustering. We exploit curved edges and optimize the arrangement of these curved edges by minimizing their curvature and maximizing the parallelism of adjacent edges. The overall visual clustering is improved by adjusting the shape of the edges while keeping their relative order. The experiments on several representative datasets demonstrate the effectiveness of our approach.
Guard Cell Starch Biosynthesis Regulated by Effectors of ADP-Glucose Pyrophosphorylase (1984)

ADP-glucose pyrophosphorylase catalyzes the regulated step of starch bioynthesis in mesophyll chloroplasts. This enzyme is activated by a high ratio of the concentrations of 3-P-glycerate to inorganic phosphate (Pi) in light. In contrast, starch in guard cell chloroplasts is degraded when stomata open, which usually occurs in light. We have investigated the biochemical causes for this contrasting phenomenon.Vicia faba L. leaflets were sampled in darkness and after various periods of illumination. The samples were quick-frozen and freeze-dried. Guard cells and other cells were dissected out, weighed, and assayed for ADP-glucose pyrophosphorylase activity, 3-P-glycerate, and Pi. In the pyrophosphorolytic direction, ADP-glucose pyrophosphorylase specific activity in guard cells was 2.7 moles per kilogram protein per hour, which was comparable to the values obtained for palisade and spongy cells. The specific activity in epidermal cells was 4-fold lower. Under our assay conditions, the guard cell enzyme activity was 5-fold higher in the presence of 3-P-glycerate and 5-fold lower with Pi (i.e. similar to the results obtained with extracts of fresh leaflet). During three minutes of illumination, 3-P-glycerate concentration in palisade cells increased 2.5-fold to 10 millimoles per kilogram dry mass. The concentration of 3-P-glycerate in guard cells was 20-fold lower and unaffected by illumination. The concentration of Pi was approximately 17 millimoles per kilogram dry mass in palisade cells, but was 10-fold higher in guard cells. These overall cellular Pi concentrations were unaffected by illumination. We conclude that starch biosynthesis in guard cells is not activated by light because of the low and constant 3-P-glycerate concentration there. We interpret this last to be a consequence of the absence of the photosynthetic carbon reduction pathway in chloroplasts of these cells.
Pipes and types: options for delivering broadband services to residential subscribers (2002)

As the era of multimedia applications arrives, the daunting challenge of actually delivering broadband services to residential subscribers must be met. Several technologically feasible solutions to this problem have been proposed including the use of copper, fiber, and hybrid fiber/coax transmission systems. The paper explores both the advantages and disadvantages of the technological and real-world aspects offered by each of these technologies. Conclusions and recommendations of technologies which are best-suited for real-world deployment are made based on the issues discussed.
Improving applications performance (1997)

This paper presents a memory model and architecture for synchronization of threads or tasks when accessing regions of virtual memory. Access control is defined on a memory region through a view that defines the size of access units and also the protocol in terms of a Finite State Machine (FSM). The size of access units, although fixed within a view, can vary across views and is thus customizable to applications. Variable-sized access units are obtained without altering the underlying fixed sized paging implementation. By defining access control through FSM definitions, any protocol that is decomposable into a set of states and can be expressed using an FSM can be supported.A cache-based architecture of the Protection Control Unit (PCU), which decides whether a read/write memory access to an access unit of a region/view can proceed or leads to a fault, is presented. The PCU is not invoked on each read/write memory access, but only on data cache misses and write access faults. The cache-based architecture forms flexible hardware support for access control in that by loading the caches with definitions of different FSM, different protocols can be supported. Furthermore, by providing for hardware supported changes in state of access through state transitions, frequency of context switching is reduced.Trace-driven simulation is used to examine the delay in the memory hierarchy due to inclusion of the caches in the PCU unit, and to examine delay in the memory hierarchy for a conventional software implementation of the same access control protocol. A TPC-C benchmark application under different transaction loads was traced and the results show that it is the number of TLB accesses (approximately 15 times more as compared to PCU accesses) for the modeled application that incurs the dominant delay, as compared to delay in the PCU memory hierarchy.
Sex steroids and libido (1997)

The effects of steroidal hormones on sexual desire and motivation are a question still under debate. This paper reviews up-to-date knowledge regarding physiological imprinting and activation by endogenous hormones of central nervous system areas involved in libido during intrauterine life and puberty. The endocrine environment probably continues to play a role during fertile life and the postmenopausal period, but this effect is often overridden by psychological and social factors. The impairment of sexual interest during estrogen-progestin treatment is an infrequent but relevant side-effect whose possible underlying mechanisms are discussed. Both endocrine and psychorelational elements may interact. From the biological point of view, androgen and oxytocin level modification and loss of estrogen fluctuations have been considered, but also the history of hormone-related mood changes could be a risk factor. On the psychological side, both the profound repercussions of the contraceptive choice and consequent responsibility, as well as the high value attributed to sexual experience are probably facilitating elements in the loss of libido under treatment.
The 4G/5G promotor polymorphism of the plasminogen activator inhibitor‐1 gene and late lumen loss after coronary stent placement in smoking and nonsmoking patients (2001)

The promotor polymorphism of the PAI-1 gene has a significant influence on instent restenosis after coronary stent implantation. The 5G/5G genotype predisposes nonsmoking gene carriers to less late lumen loss, whereas in smoking gene carriers this genotype is associated with the greatest late lumen loss. This might be explained by an altered expression pattern of hemostatic parameters.
The Radical Pair Yield of Ionizing Radiation in Aqueous Solutions of Formic Acid (1952)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Radical Pair Yield of Ionizing Radiation in Aqueous Solutions of Formic AcidEdwin J. HartCite this: J. Phys. Chem. 1952, 56, 5, 594–599Publication Date (Print):May 1, 1952Publication History Published online1 May 2002Published inissue 1 May 1952https://pubs.acs.org/doi/10.1021/j150497a009https://doi.org/10.1021/j150497a009research-articleACS PublicationsRequest reuse permissionsArticle Views113Altmetric-Citations36LEARN 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 options Get e-Alerts
Characterization and purification of mesentericin Y105, an anti-Listeria bacteriocin from Leuconostoc mesenteroides (1992)

A Leuconostoc mesenteroides ssp. mesenteroides was isolated from goat's milk on the basis of its ability to inhibit the growth of Listeria monocytogenes. The antimicrobial effect was due to the presence in the culture medium of a compound, named mesentericin Y105, excreted by the Leuconostoc mesenteroides Y105. The compound displayed known features of bacteriocins from lactic acid bacteria. It appeared as a proteinaceous molecule exhibiting a narrow inhibitory spectrum limited to genus Listeria. The apparent relative molecular mass, as indicated by activity detection after SDS-PAGE, was 2.5-3.0 kDa. The bacteriocin was purified to homogeneity by a simple three-step procedure: a crude supernatant obtained from an early-stationary-phase culture in a defined medium was subjected to affinity chromatography on a blue agarose column, followed by ultrafiltration through a 5 kDa cut-off membrane, and finally by reverse-phase HPLC on a C4 column. Microsequencing of the pure bacteriocin and of tryptic fragments showed that mesentericin Y105 is a 36 amino acid polypeptide whose primary structure is close to that of leucocin A-UAL 187, which contains an extra residue at the C-terminus and displays only two differences in the overlapping sequence. However, unlike leucocin A-UAL 187, mesentericin Y105 displayed a bactericidal mode of action.
What Goes Up Must Come Down: The Emerging Spectrum of Inhibitory Receptors (1997)

For much of the last few decades, investigators have concentrated on delineating the parameters that involve the direct activation of the immune system. In general, receptor engagement, by antigen, cytokine, or counterreceptor, initiates a cascade of distinct biochemical events in lymphocytes and
Web applications design evolution with UWA (2010)

This paper presents a semi-automatic approach to Web applications design evolution which leverages the Ubiquitous Web Applications (UWA) design framework, a methodology and a set of models and tools for the user-centered design of multi-channels and context-aware Web applications. The approach is based on a two-step redesign process: first a semi-automatic reverse modeling phase analyzes the html pages of the application front-end to abstract a model of the “as-is” design, according to the UWA formalism; second, a forward design phase starts from the recovered models and the (new) requirements available for the application to identify lacks and opportunities of improvements in the “as-is” design and produce the “to-be” version of it. The reverse modeling phase applies clustering and clone detection techniques and is supported by an Eclipse IDE environment. The forward design phase is supported by a set of UWA modeling tools which are built on top of the Eclipse Graphical Editing Framework (GEF) and of the Eclipse Graphical Modeling Framework (GMF) and that allow developers to evolve the recovered models. The results from a concrete case study to assess the validity of the redesign approach are also presented and discussed.
Monitoring femoral component installation using vibration testing. (2005)

With emerging minimally invasive surgical techniques in total hip arthroplasty, there has been anecdotal evidence of an increase in fractures associated with the insertion of the prosthesis into the femur. The diminished visibility associated with minimally invasive surgical techniques necessitates a greater emphasis on the surgeon's tactile and auditory senses. These senses are used to ascertain the femoral component position of maximum stability and interference fit, as well as to prevent further component impaction and subsequent fracture of the femur. The work described herein attempts to identify a means to supplement the surgeon's tactile and auditory senses by using damage identification techniques normally used in civil and mechanical structures to monitor the insertion process of the prosthesis. It is hypothesized that vibration characteristics of the impact process may be used intraoperatively to determine at what position the femoral component has reached appropriate interference fit and stability in the femur. Such information may be used to prevent further impaction of the femoral component past a threshold that could result in a periprosthetic fracture. A piezoelectric accelerometer and impact hammer will be used to monitor the impact process. The acceleration time history data were analyzed by using low and high pass filters to allow frequency analysis of the time history signals. This paper will summarize features derived from the measured data that will be used to develop an insertion process termination indicator.