gebhart/patrepeval huggingface dataset:
Atmospheric Pressure Barrier Discharge Deposition of Silica-Like Films on Polymeric Substrates (2007)

Silica-like coatings were deposited on polymer foils in APG discharge in a roll-to-roll configuration. The dependence of film structure and chemical composition on the conditions during deposition process was studied by means of SEM, ATR-FTIR, and XPS analysis. The influence of oxidant concentration on the deposited film properties is analyzed and discussed. It was observed that pulsing of the APG discharge suppresses dust formation in atmospheric plasma and, therefore, provides uniform coatings.
Superparamagnetic Nanoparticle−Polystyrene Bead Conjugates as Pathogen Capture Mimics:  A Parametric Study of Factors Affecting Capture Efficiency and Specificity (2008)

There is currently significant interest in the miniaturization of disease detection platforms. As detection platforms decrease in size there is a need for the development of sample preparation protocols by which cells or biomarkers of interest can be concentrated from large volumes down to volumes more amenable to analysis within microfluidic devices. To address this issue, we present a series of magnetic confinement assays for polystyrene (PS) beads mediated through their covalent modification with a series of superparamagnetic nanoparticles, where the PS beads have many properties similar to bacteria, but are not pathogenic. The magnetic confinement of the PS beads is investigated as a function of (1) the overall nanoparticle size, (2) the loading of superparamagnetic content within the nanoparticle matrix, and (3) the viscosity and volume of the dispersion medium. We demonstrate that the time required for the magnetic capture of the PS beads by the superparamagnetic nanoparticles (1) decreases as the loading of superparamagnetic material into the nanoparticles increases and (2) increases as the viscosity and volume of the dispersion medium are increased. However, limitations in the magnetic confinement efficiency for the PS beads labeled with nanoparticles comprised of low loadings of superparamagnetic material can be overcome through the use of magnetic columns. These magnetic columns provide a practical and fast mode of sample preparation that should facilitate the magnetic concentration of cells and biomarkers from large volumes to volumes more amenable to incorporation into a microfluidic-based analysis system, where they can be analyzed/detected.
Simultaneous multichannel time domain equalizer design based on the maximum composite shortening SNR (2003)

A time domain equalizer (TEQ) is a finite impulse response filter that shortens the channel impulse response (CIR) to mitigate intersymbol interference (ISI). P. Melsa et al. (see IEEE Trans. on Commun., vol.44, p.1662-72, 1996) minimized ISI in the time domain by maximizing the shortening signal-to-noise ratio (SSNR) of the energy in a target window to the energy outside the target window in the shortened CIR. Infinite SSNR means zero ISI. Melsa et al. also developed a joint channel shortening method to design a single TEQ to shorten a channel and a near-end echo impulse response. We extend the joint SSNR method to design a single TEQ to shorten multiple channels by maximizing the composite SSNR. The composite SSNR is a weighted sum of normalized channel SSNRs. The normalized SSNR is the ratio of the energy in the target window samples to the energy of all samples in the shortened CIR and has a range of [0, 1] so that it is better suited for numerical stability and fixed-point implementation. Our proposed method outperforms the joint channel shortening method. because it achieves higher weighted sum of SSNRs of the used channels.
Bipolar reliability optimization through surface compensation of the base profile (1992)

Increased reliability of advanced bipolar devices was achieved by compensating the surface of the base doping profile with a shallow, low-dose arsenic implant. An order of magnitude increase in lifetime was obtained without a degradation in emitter coupled logic gate delay or f/sub T/, while a 100* improvement in lifetime was exhibited with approximately a 20% degradation in gate delay and f/sub T/. This technique is applicable to non-self-aligned as well as self-aligned bipolar devices.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Harnessing thermal fluctuations for purposeful activities: the manipulation of single micro-swimmers by adaptive photon nudging (2013)

A simple scheme is presented for remotely maneuvering individual microscopic swimmers by means of on-demand photo-induced actuation, where a laser gently and intermittently pushed the swimmer along its body axis (photon nudging) through a combination of radiation-pressure force and photophoretic pull. The proposed strategy utilized rotational random walks to reorient the micro-swimmer and turned on its propulsion only when the swimmer was aligned with the target location (adaptive control). A Langevin-type equation of motion was formulated, integrating these two ideas to describe the dynamics of the stochastically controlled swimmer. The strategy was examined using computer simulations and illustrated in a proof-of-principle experiment steering a gold-coated Janus micro-sphere moving in three dimensions. The physical parameters relevant to the two actuating forces under the experimental conditions were investigated theoretically and experimentally, revealing that a ∼7 K temperature differential on the micro-swimmer surface could generate a propelling photophoretic strength of ∼0.1 pN. The controllability and positioning error were discussed using both experimental data and Langevin dynamics simulations, where the latter was further used to identify two key unitless control parameters for manipulation accuracy and efficiency; they were the number of random-walk turns the swimmer experienced on the experimental timescale (the revolution number) and the photon-nudge distance within the rotational diffusion time (the propulsion number). A comparison of simulation and experiment indicated that a near-optimal micron-precision motion control was achieved.
Cyclooxygenase 2 is a key enzyme for inflammatory cytokine‐induced angiogenesis (2004)

Cyclooxygenase1 (COX1) and COX2 mediate the rate-limiting step in arachidonic acid metabolism. Expression of COX2 mRNA and protein is often enhanced in various human cell types by inflammatory cytokines such as interleukin-1beta (IL-1beta) and tumor necrosis factor alpha (TNFalpha). IL-1beta enhanced expression of various prostanoids and this expression was blocked by COX2 selective inhibitors. IL-1beta markedly induced angiogenesis in vitro and in vivo, which was significantly inhibited by COX2 selective inhibitors but not by a vascular endothelial growth factor (VEGF) receptor tyrosine kinase inhibitor. In contrast, COX2 selective inhibitors only partially blocked VEGF-induced angiogenesis. EP2, EP4 (prostaglandin E2 receptors) agonists and thromboxane A2 (TXA2) receptor agonists induced angiogenesis in vitro and in vivo; IL-1beta-induced angiogenesis was blocked by an EP4 antagonist and a TXA2 receptor antagonist. IL-1beta induced much less angiogenesis in cornea of COX2 knockout mice than that of wild-type mice. This is the first report that COX2 and some prostanoids play a key role in IL-1beta-induced angiogenesis.
MANUFACTURE OF BULK MAGNETORHEOLOGICAL ELASTOMERS USING VACUUM ASSISTED RESIN TRANSFER MOLDING (2007)

Magnetorheological elastomers (MREs) consist of ferromagnetic particles embedded in a compliant matrix (i.e. elastomer). Due to the magnetic interaction of the ferromagnetic particles, MREs exhibit field dependent physical properties. Very significant changes in the modulus and loss factor of the elastomer can be realized. This makes MREs a promising candidate for active vibration control mechanisms. One factor currently limiting the implementation of this technology is the lack of an efficient manufacturing method that is practical for mass production. Most of the specimens created for previous MRE research were made using simple casting or mechanical mixing methods that are not ideal. In this research a new methodology for producing MREs using Vacuum Assisted Resin Transfer Molding (VARTM) was investigated. The method was used with a range of iron particles sizes and silicon elastomer systems and found to be effective within certain limits of applicability. The specimens produced were tested in compression under a range of magnetic fields to validate the presence of the MR effect. Relative changes in compressive modulus ranging from 35% to 150% (depending on volume fraction), under fields of around 0.3T were observed.
Correlation between changes in stroke volume and the paced intracardiac electrogram (2002)

The strong correlation between changes in stroke volume and R slew rate indicates that paced intracardiac electrograms reflect changes in the size and geometry of the heart. Telemetrically recorded intracardiac electrograms may thus be used non-invasively to assess key aspects of cardiac haemodynamics.
Microporous Polymeric Films (1974)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMicroporous Polymeric FilmsHarvey S. Bierenbaum, Robert B. Isaacson, Melvin L. Druin, and Steven G. PlovanCite this: Ind. Eng. Chem. Prod. Res. Dev. 1974, 13, 1, 2–9Publication Date (Print):March 1, 1974Publication History Published online1 May 2002Published inissue 1 March 1974https://pubs.acs.org/doi/10.1021/i360049a002https://doi.org/10.1021/i360049a002research-articleACS PublicationsRequest reuse permissionsArticle Views861Altmetric-Citations93LEARN 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
TEM Investigation of Multilayered Structures in Heterogeneous AuCo Alloys (1995)

The microstructure of melt-spun Au83.3Co16.7 and Au71.6Co28.4 ribbons is investigated by means of analytical and high-resolution electron microscopy. The as-quenched ribbons contain a multilayered lamellar eutectic within the grains and Co precipitates at grain boundaries. Cobalt-rich lamellae are found with growing direction 〈110〉 and an average width of 7.5 nm. The thickness of the Co-lamella parallel to [001] is larger in the sample with the higher Co-content. Annealing at 480 °C dissolves the eutectic and large Co particles are formed at grain boundaries and within the grains deteriorating the magnetic properties. Die Mikrostruktur von schnell abgekühlten Au83.3Co16.7 und Au71.6Co28.4 Bändern wird mittels analytischer und hochauflösender Elektronenmikroskopie untersucht. Die nicht wärmebehandelten Bänder bestehen aus Körnern mit einem lamellaren Eutektikum und Co-Ausscheidungen an den Korngrenzen. Die Kobalt-reichen Lamellen wachsen in 〈110〉 Richtung und weisen eine mittlere Breite von 7,5 nm auf. In der 28,4 At% Co Probe ist die Dicke der Co-Lamellen parallel zu [001] größer als in der Probe mit geringerem Co-Gehalt. Eine Wärmebehandlung bei 480 °C löst die Lamellenstruktur auf, führt zur Bildung von großen Co-Ausscheidungen an Korngrenzen und im Inneren der Körner und verschlechtert die magnetischen Eigenschaften.
A flexible graphical user interface for embedding heterogeneous neural network simulators (1996)

A graphical user interface (GUI) for heterogeneous neural network simulators proposed in this article is intended to be of use both for the novice and for the experienced neural network user. For the novice, it provides an easy-to-use neural network simulation package that insulates the user from the requirements of knowing the simulator implementation details or the configuration file syntax. For the experienced neural network professional it provides an interface that is easily extensible to include any additional neural network simulator in its binary form. To satisfy both academic and personal computer environments, the GUI has been developed by using the free TCL/TK software package, available on workstations running Unix and on PCs running the free Linux operating system. Although the GUI and the embedded simulators have been successfully tested both in neural network research and training programs, a more extensive testing in undergraduate and graduate level classes is in progress.
Hypervisor mechanisms to manage FPGA reconfigurable accelerators (2016)

In the last decade, the research on CPU-FPGA hybrid architectures has become a hot topic. One of the main challenges in this domain consists in efficiently and safely managing dynamic partial reconfiguration (DPR) resources. This paper focuses on the management of the reconfiguration by an hypervisor on an ARM-FPGA platform. Using the virtualization approach, virtual machines (VM) may access resources independently, being unaware of the existence of other VMs. The purpose of our work is to provide an abstract and transparent interface for virtual machines to access reconfigurable resources. The underlying infrastructure of partial reconfiguration management is hidden from the virtual machines, so that software developers do not need to consider the implementation details. We propose a framework where DPR accelerators are presented as virtual devices, which are universally mapped in each VM space as ordinary peripherals. The hypervisor automatically detects VM's requests for DPR resources and handles them dynamically according to a preemptive allocation mechanism. Our custom hypervisor guarantees the independent and isolation of VM domains. We also evaluate the efficiency of our framework by measuring the critical overheads during DPR management and allocations. The results demonstrate that our mechanism is implemented with low overhead.
Sphere anemometer - a faster alternative solution to cup anemometry (2007)

We present an anemometer technique characterized by an instrument in a sealed enclosure without moving parts. Measurements taken with our improved sphere anemometer in comparison to cup anemometer and hot-wire anemometer data subjected to wind gusts are discussed. The hot-wire anemometer serves as a reference with high temporal and spacial resolution. A manually driven "gust generator" produced gusts at low frequencies of about 1Hz. All measurements were carried out in the wind tunnel at the University of Oldenburg.
The Photochemical Polymerization of Acetylene (1934)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Photochemical Polymerization of AcetyleneS. C. Lind and Robert LivingstonCite this: J. Am. Chem. Soc. 1934, 56, 7, 1550–1551Publication Date (Print):July 1, 1934Publication History Published online1 May 2002Published inissue 1 July 1934https://pubs.acs.org/doi/10.1021/ja01322a502https://doi.org/10.1021/ja01322a502research-articleACS PublicationsRequest reuse permissionsArticle Views27Altmetric-Citations6LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Nutritional status and morbidity pattern of government primary school children in north Kolkata of West Bengal, India (2013)

The nutritional status of children adversely affects their physical and mental growth. This study examined the nutritional status and morbidity pattern of government primary school children in north Kolkata of West Bengal, India. A cross-sectional study was conducted among 10 primary schools using interview techniques and anthropometric and clinical examinations. Of the 502 children, 40.2% children showed poor hygiene. The upper class students showed significantly poorer hygiene than that of lower class students. Anemia rate was 22.3% in these children and class II and III students showed significantly more anemia. Dental caries were found among 29.9% children and class II and III students showed significantly higher rate. About 10.4% children were found with enlarged tonsils and class I and III students showed higher prevalence. A major group of children (39.4%) gave the history of worm expulsion and the infestations of worms were observed significantly higher among lower class students. Vitamin B-complex deficit was observed among 20.7% and the deficiency was markedly observed among class II and IV students. Under-weight children were found in one-third of study population. There was no significant difference in nutrition among the participants from the various classes. There was no case of severe under-nutrition or stunting and wasting found in this study population. The findings of various nutritional status and morbidity patterns in this study highlight the needs to undertake various initiatives in relation to health promotion and prevention in primary schools.South East Asia J Public Health | Jan-June 2012 | Vol 2 Issue 1 | 13-17 DOI: http://dx.doi.org/10.3329/seajph.v2i1.15255
Tuning the photonic band gap in cholesteric liquid crystals by temperature-dependent dopant solubility (2006)

We have investigated the physical and optical properties of the left-handed chiral dopant ZLI-811 mixed in a nematic liquid crystal (LC) host BL006. The solubility of ZLI-811 in BL006 at room temperature is ~24 wt%, but can be enhanced by increasing the temperature. Consequently, the photonic band gap of the cholesteric liquid crystal (CLC) mixed with more than 24 wt% chiral dopant ZLI-811 is blue shifted as the temperature increases. Based on this property, we demonstrate two applications in thermally tunable band-pass filters and dye-doped CLC lasers.
Evaluating fault-tolerant system designs using FAUmachine (2007)

This paper presents an elaborate framework for early evaluation of fault-tolerant behaviour of complex hardware/software systems in the presence of hardware faults. The evaluation is based on sophisticated fault injection experiments. An illustrative example for such experiments is discussed in some details.
A Comparative Study of Treatments for Positional Sleep Apnea (1991)

Sixty male patients all with apnea plus hypopnea indices (A + HI) above 12.5, who met a criterion of positionality by having two or more times the rate of these events during supine sleep in comparison to their lateral sleep rate, were randomly assigned to one of four treatments for 8 weeks. All were restudied for two nights, one with and one without treatment devices. On treatment more than half the patients in each group reduced their A + HI to within normal limits and a third remained WNL without the use of devices. Half of those trained to sleep in the lateral position with the help of an alarm maintained this learning without the alarm as did half of those who were encouraged to learn this sleep posture on their own. There is an additive effect for the positional patient from wearing a tongue retaining device (TRD) if they continue to sleep in the supine position. Factors associated with successful treatment include overall severity, severity in the lateral position, weight, weight change, nasal patency and motivation to help their condition.
A pipelined 5MHz 9b ADC (1987)

This paper will report on a 5Msamples/s 9b analog to digital converter in a 3μm CMOS process, which requires 3500 square mils, consumes 18mW, has an Input capacitance of 3pF and uses a fully differential architecture. Digital error correction makes the converter insensitive to comparator offset errors.
Functions of PI4P and Sterol Glucoside Necessary for the Synthesis of a Nascent Membrane Structure During Pexophagy (2007)

We recently showed that, in the yeast Pichia pastoris, an ergosterol glucoside synthesizing enzyme, Atg26, is recruited to the precursor of the pexophagic structure, micropexophagic membrane apparatus (MIPA), under the regulation of phosphatidylinositol 4'-monophosphate (PI4P)-signaling during pexophagy. Atg26 was found to harbor a novel PI4P-binding motif, the GRAM domain. Both lipids, PI4P and sterol glucoside, synthesized by PpPik1 and PpAtg26, respectively, were necessary for pexophagy, in the step where the MIPA was formed. In this addendum, we review these findings, and speculate on the mechanistic and physiological implications of the functions of these lipids during the autophagic process.
Retinoic Acid Induces <i>Pdx1</i>-Positive Endoderm in Differentiating Mouse Embryonic Stem Cells (2005)

We have generated an embryonic stem (ES) cell line in which sequences encoding green fluorescent protein (GFP) were targeted to the locus of the pancreatic-duodenal homeobox gene (Pdx1). Analysis of chimeric embryos derived from blastocyst injection of Pdx1(GFP/w) ES cells demonstrated that the pattern of GFP expression was consistent with that reported for the endogenous Pdx1 gene. By monitoring GFP expression during the course of ES cell differentiation, we have shown that retinoic acid (RA) can regulate the commitment of ES cells to form Pdx1(+) pancreatic endoderm. RA was most effective at inducing Pdx1 expression when added to cultures at day 4 of ES differentiation, a period corresponding to the end of gastrulation in the embryo. RT-PCR analysis showed that Pdx1-positive cells from day 8 cultures expressed the early endoderm markers Ptf1a, Foxa2, Hnf4alpha, Hnf1beta, and Hnf6, consistent with the notion that they corresponded to the early pancreatic endoderm present in the embryonic day 9.5 mouse embryo. These results demonstrate the utility of Pdx1(GFP/w) ES cells as a tool for monitoring the effects of factors that influence pancreatic differentiation from ES cells.
High-nonlinearity fiber optical parametric amplifier with periodic dispersion compensation (1999)

Theory shows that the maximum gain and bandwidth of one-pump fiber optical parametric amplifiers made from high-nonlinearity fiber, operated with a pump wavelength /spl lambda//sub p/ far from the fiber zero-dispersion wavelength /spl lambda//sub 0/ can greatly be improved by periodic dispersion compensation. We have performed experiments and obtained good agreement with theory: for /spl lambda//sub p/=1542 and /spl lambda//sub 0/=1591 nm, we have increased the bandwidth from 7 to 28 nm, and the maximum gain from 15 to 20 dB, by splicing three pieces of standard fiber at regular intervals in a 40-m long nonlinear fiber.