gebhart/patrepeval huggingface dataset:
FPGA implementation of phase shedding with time-optimal controller in multi-phase buck converters (2009)

This paper proposes a time-optimal digital controller for the phase-shedding in multi-phase buck converters. Phase shedding is an established technique to improve the efficiency of multi-phase converters at light load, by changing the active number of phases depending on the load current level. In order to minimize the output voltage deviation due to phase shedding and the transient time required to recover the nominal operating conditions, a minimum time algorithm is investigated. The proposed technique is insensitive to the power stage parameters, as its operation relies only on the steady-state duty-cycle and the number of phases to be turned-on or turned-off. The minimum response time is achieved through a feedforward action undertaken as soon as the phase shedding command is received. The proposed approach is validated through experimental tests on a synchronous buck converter prototype. For the purpose of rapid-prototyping, the proposed digital controller is implemented in FPGA.
Stimulation of protein kinase C (PKC) activity in resting Swiss 3T3 cells by prostaglandin F<sub>2α</sub> (1992)

Prostaglandin F2 alpha (PGF2 alpha), a mitogen for resting Swiss 3T3 cells, rapidly stimulates phosphorylation of an 80 kDa protein (80 K). 1-Oleoyl-2-acetylglycerol (OAG) and 12-O-tetradecanoyl phorbol-13-acetate (TPA) both protein kinase C (PKC) activators, also elicit 80 K phosphorylation. In contrast PGE1, PGE2 or PGF2 beta, which are non-mitogenic in these cells, had little or no action on this event. However PGE1 and PGE2 potentiate the PGF2 alpha proliferative effect but do not enhance its action on 80 K phosphorylation. These results suggest that PGF2 alpha mitogenic induction involves PKC signalling pathway activation while its enhancement by PGE1 or PGE2 occurs through a different mechanism(s).
An evaluation of the management of patients with cerebral metastases from malignant melanoma (1972)

In an attempt to evaluate the response to whole-brain irradiation with chemotherapy and/or corticosteroids, the results of 41 patients with cerebral metastases from malignant melanoma were analyzed. Patients received a median tumor dose of 3000 rads delivered to the entire brain over a 2-week period. Twenty-four patients received concomitant chemotherapy and corticosteriods, and 14 others received either chemotherapy or corticosteroids. The median and mean survival from completion of irradiation for all patients were 86.5 and 103+ days, respectively (range: 4 to 436+ days). Sixteen patients (39%) showed definite neurologic improvement and had a median survival of 131 days. The median survival of the 25 nonresponding patients was only 17 days (p < .002). The median duration of improvement was 60 days (range: 30–465 days). The most frequently seen responses included return of limb function, disappearance of confusion, somnolence and coma, and cessation of headaches, nausea, and vomiting. Patients with neurologic improvement tended to have more indolent disease than those who did not respond.
Using Bloom’s Taxonomy to Gauge Students’ Reading Comprehension Performance (2010)

Assessment is an essential part of the teaching-learning process. Students’ learning can be measured by different procedures. Despite a significant increase in test procedures, numerous issues surrounding testing of comprehension remain unresolved. This paper investigates the relationship between the level of thinking processes in comprehension questions and the students` performance. The findings indicate that the level of questions designed according to Bloom’s Taxonomy influence the students’ performance in answering comprehension questions. The findings conclude that there’s a relationship between the level of thinking processes needed and the students’ ability to answer these questions correctly. This paper provides a common base for further discussionsont the undergraduates’ competence in English Language as well as the recommendations on the techniques that could be used to handle higher order level questions. Keywords: Level of thinking process; Reading Comprehension Questions; Performance; Bloom’s Taxonomy; Multiple choice questions (MCQs) Resume: L'evaluation est une partie essentielle du processus de l'enseignement-apprentissage. L'apprentissage des eleves peut etre mesure par des procedures differentes. Malgre un accroissement significatif dans les procedures de test, de nombreuses questions concernant les tests de comprehension restent non resolues. Cet article etudie la relation entre le niveau des processus de pensee dans les questions de comprehension et de la performance des etudiants. Les resultats indiquent que le niveau de questions concues selon la taxonomie de Bloom influence sur la performance des eleves dans leurs reponses aux questions de comprehension. Les resultats concluent qu'il y a une relation entre le niveau de processus de pensee necessaire et la capacite des eleves a repondre a ces questions correctement. Ce document fournit une base commune pour des discussions plus approfondies sur la competence de l'anglais des eleves de premier cycle, ainsi que les recommandations sur les techniques qui pourraient etre utilisees pour traiter des questions d'un plus haut niveau.Mots-cles: niveau de processus de pensees; questions sur la comprehension ecrite; performance; taxonomie de Bloom; questions de choix multiple (MCQs)
Circulating monocytes from healthy individuals and COPD patients (2003)

The basal and LPS-stimulated secretion of specific pro-inflammatory molecules from circulating monocytes differs between healthy and COPD subjects. These findings may be valuable for further studies on the mechanisms involved in recruitment and activation of inflammatory cells in COPD.
Visual object categorization with new keypoint-based adaBoost features (2009)

We present promising results for visual object categorization, obtained with adaBoost using new original "keypoints-based features". These weak-classifiers produce a Boolean response based on presence or absence in the tested image of a "keypoint" (a kind of SURF interest point) with a descriptor sufficiently similar (i.e. within a given distance) to a reference descriptor characterizing the feature. A first experiment was conducted on a public image dataset containing lateral-viewed cars, yielding 95% recall with 95% precision on test set. Preliminary tests on a small subset of a pedestrians database also gives promising 97% recall with 92% precision, which shows the generality of our new family of features. Moreover, analysis of the positions of adaBoost-selected keypoints show that they correspond to a specific part of the object category (such as "wheel" or "side skirt" in the case of lateral-cars) and thus have a "semantic" meaning. We also made a first test on video for detecting vehicles from adaBoost-selected keypoints filtered in real-time from all detected keypoints.
Septic Sinus Thrombosis: Its Diagnosis and Treatment (1923)

An abstract is not available for this content so a preview has been provided. Please use the Get access link above for information on how to access this content.
Delta coding of LPC parameters (2005)

This paper presents an improvement in the quality of the LPC-coded speech at low bit rates (2400 bits/second and below), achieved by reducing the "warbliness" of the steady-state portions of the speech signal. This reduction is made possible by increasing the fineness of quantization of the LPC parameters without increasing the bit rate. The technique used is to transmit the frame-to-frame differences of the encoded parameters whenever the parameters have not changed significantly from one frame to the next.
A New Item Response Theory Modeling Approach with Applications to Unidimensionality Assessment and Ability Estimation (1990)

Using an infinite item test framework, it is argued that the usual assumption of local independence be replaced by a weaker assumption, essential independence . A fortiori, the usual assumption of unidimensionality is replaced by a weaker and arguably more appropriate statistically testable assumption of essential unidimennsionality. Essential unidimennsionnality implies the existence of a “unique” unidimensional latent ability. Essential unidimensionality is equivalent to the “consistent” estimation of this latnet ability in an ordinal scaling sense using any Balanced empirical scaling. A variation of this estimation approach allows consistent estimation of ability on the given latent ability scale.
The <scp>P</scp> harmacologic and <scp>C</scp> linical <scp>E</scp> ffects of <scp>M</scp> edical <scp>C</scp> annabis (2013)

Cannabis, or marijuana, has been used for medicinal purposes for many years. Several types of cannabinoid medicines are available in the United States and Canada. Dronabinol (schedule III), nabilone (schedule II), and nabiximols (not U.S. Food and Drug Administration approved) are cannabis-derived pharmaceuticals. Medical cannabis or medical marijuana, a leafy plant cultivated for the production of its leaves and flowering tops, is a schedule I drug, but patients obtain it through cannabis dispensaries and statewide programs. The effect that cannabinoid compounds have on the cannabinoid receptors (CB(1) and CB(2) ) found in the brain can create varying pharmacologic responses based on formulation and patient characteristics. The cannabinoid Δ(9) -tetrahydrocannabinol has been determined to have the primary psychoactive effects; the effects of several other key cannabinoid compounds have yet to be fully elucidated. Dronabinol and nabilone are indicated for the treatment of nausea and vomiting associated with cancer chemotherapy and of anorexia associated with weight loss in patients with acquired immune deficiency syndrome. However, pain and muscle spasms are the most common reasons that medical cannabis is being recommended. Studies of medical cannabis show significant improvement in various types of pain and muscle spasticity. Reported adverse effects are typically not serious, with the most common being dizziness. Safety concerns regarding cannabis include the increased risk of developing schizophrenia with adolescent use, impairments in memory and cognition, accidental pediatric ingestions, and lack of safety packaging for medical cannabis formulations. This article will describe the pharmacology of cannabis, effects of various dosage formulations, therapeutics benefits and risks of cannabis for pain and muscle spasm, and safety concerns of medical cannabis use.
Menadione-induced apoptosis: roles of cytosolic Ca2+elevations and the mitochondrial permeability transition pore (2002)

In normal pancreatic acinar cells, the oxidant menadione evokes repetitive cytosolic Ca(2+) spikes, partial mitochondrial depolarisation, cytochrome c release and apoptosis. The physiological agonists acetylcholine and cholecystokinin also evoke cytosolic Ca(2+) spikes but do not depolarise mitochondria and fail to induce apoptosis. Ca(2+) spikes induced by low agonist concentrations are confined to the apical secretory pole of the cell by the buffering action of perigranular mitochondria. Menadione prevents mitochondrial Ca(2+) uptake, which permits rapid spread of Ca(2+) throughout the cell. Menadione-induced mitochondrial depolarisation is due to induction of the permeability transition pore. Blockade of the permeability transition pore with bongkrekic acid prevents activation of caspase 9 and 3. In contrast, the combination of antimycin A and acetylcholine does not cause apoptosis but elicits a global cytosolic Ca(2+) rise and mitochondrial depolarisation without induction of the permeability transition pore. Increasing the cytosolic Ca(2+) buffering power by BAPTA prevents cytosolic Ca(2+) spiking, blocks the menadione-elicited mitochondrial depolarisation and blocks menadione-induced apoptosis. These results suggest a twin-track model in which both intracellular release of Ca(2+) and induction of the permeability transition pore are required for initiation of apoptosis.
Semex - An Efficient Music Retrieval Prototype. (2000)

[TODO] Add abstract here.
InfoTouch (2008)

We report on a design exploration into how a large multi-touch tabletop display can be used for information visualization. We designed an interface where users explored a tagged photo collection by bi-manual manipulation of the collections' tag cloud. User feedback showed that despite the availability of multi-touch most of the actual interactions were single-touch. However, some particular natural actions, such as grabbing the tag cloud and partitioning it into two parts, were often carried with both hands. Thus our user study indicates that multi-touch can act as a useful complementary interaction method in information visualization interfaces.
Macroscopic Modeling and Identification of the Human Neuromuscular Network (2006)

In this paper, we build a mathematical model of the whole-body neuromuscular network and identify its parameters by optical motion capture, inverse dynamics computation, and statistical analysis. The model includes a skeleton, a musculotendon network, and a neuromuscular network. The skeleton is composed of 155 joints representing the inertial property and mobility of the human body. The musculotendon network includes more than 1000 muscles, tendons, and ligaments modeled as ideal wires with any number of via points. We also develop an inverse dynamics algorithm to estimate the muscle tensions required to perform a given motion sequence. Finally, we model the relationship between the spinal nerve signals and muscle tensions by a neural network. The resulting parameters match well with the agonist-antagonist relationships of muscles. We also demonstrate that we can simulate the patellar tendon reflex using the neuromuscular model. This is the first attempt to build and identify a macroscopic model of the human neuromuscular network based only on non-invasive motion measurements, and the result implies that the activation commands from the motor neurons can be considerably simple compared with the number of muscles to be controlled.
On the cost of mixed language programming (1984)

A simple model for estimating the cost of mixed language programming (MLP) is considered. It is based on the empirical information concerning the expense of learning and practically using inter-language communication facilities available in commercial high-level language compiler environments and some static models for inter and intra-language conversion costs and the cost of producing new software. Calculations show that MLP can be very cost effective and compiler manufacturers should be encouraged to incorporate good (and perhaps standardized) inter-language communication facilities into new versions of their high-level language environments.
Fault Detection in Induction Machines Using Power Spectral Density in Wavelet Decomposition (2008)

<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> Motor-current-signature analysis has been successfully used in induction machines for fault diagnosis. The method, however, does not always achieve good results when the speed or the load torque is not constant, because this causes variations on the motor-slip and fast Fourier transform problems appear due to a nonstationary signal. This paper proposes a new method for motor fault detection, which analyzes the spectrogram based on a short-time Fourier transform and a further combination of wavelet and power-spectral-density (PSD) techniques, which consume a smaller amount of processing power. The proposed algorithms have been applied to detect broken rotor bars as well as shorted turns. Besides, a merit factor based on PSD is introduced as a novel approach for condition monitoring, and a further implementation of the algorithm is proposed. Theoretical development and experimental results are provided to support the research. </para>
Broad-band waveforms and robust processing for marine CSEM surveys (2010)

In the marine controlled-source electromagnetic method, the Earth response varies in frequency; therefore, using a wide range of frequencies may better constrain geological structure than using a single frequency or only a few closely spaced frequencies. Binary waveforms, such as the square wave, provide a number of frequencies, though many are limited in usefulness because of the rapid decline of amplitude with frequency. Binary waveform design can be improved by recognizing that the class of doubly symmetric waveforms has special properties: they are compact, have controlled phase, are never polarizing and can be described by a simple closed-form mathematical solution. Using this solution, we discovered a compact waveform in which the amplitudes of the third and seventh harmonics are maximized and which has a signal-to-noise advantage at higher frequencies over several other common waveforms. Compact waveforms make possible improved methods for time-series processing. Using short time windows and a first-difference pre-whitener lessens spectral contamination from magnetotelluric signal and oceanographic noise; robust stacking reduces bias from time-series noise transients; and accurate variance estimates may be derived from averages of waveform-length Fourier transform windows of the time-series.
PACER (2010)

Data races indicate serious concurrency bugs such as order, atomicity, and sequential consistency violations. Races are difficult to find and fix, often manifesting only after deployment. The frequency and unpredictability of these bugs will only increase as software adds parallelism to exploit multicore hardware. Unfortunately, sound and precise race detectors slow programs by factors of eight or more and do not scale to large numbers of threads. This paper presents a precise, low-overhead sampling-based data race detector called Pacer. PACER makes a proportionality guarantee: it detects any race at a rate equal to the sampling rate, by finding races whose first access occurs during a global sampling period. During sampling, PACER tracks all accesses using the dynamically sound and precise FastTrack algorithm. In nonsampling periods, Pacer discards sampled access information that cannot be part of a reported race, and Pacer simplifies tracking of the happens-before relationship, yielding near-constant, instead of linear, overheads. Experimental results confirm our theoretical guarantees. PACER reports races in proportion to the sampling rate. Its time and space overheads scale with the sampling rate, and sampling rates of 1-3% yield overheads low enough to consider in production software. The resulting system provides a "get what you pay for" approach that is suitable for identifying real, hard-to-reproduce races in deployed systems.
Serum interleukin-6 in systemic sclerosis and its correlation with disease parameters and cardiopulmonary involvement. (2016)

IL-6 level is increased in patients with SSc and significantly correlates with EUSTAR score, IRS, DLCO, 6MWD, HRCT scores, and echocardiographic abnormalities of the right side of the heart. These results support the role of IL-6 in the disease activity and in the development of cardiopulmonary manifestations in SSc patients.
Design, development and tests of high-performance silicon vapor chamber (2012)

This paper presents a novel triple stack process to develop an all-silicon thermal ground plane (TGP) vapor chamber that enables fabrication of compact, large scale, low thermal expansion coefficient mismatch and high-performance heat transfer devices. The TGP vapor chamber is formed through bonding three etched silicon wafers. On both the top and bottom wafers, microscale and high aspect ratio wick structures are etched for liquid transport. The 1.5 mm thick middle layer contains the cavities for vapor flow. To achieve hermetic seal, glass frit with four sealing rings, approximately 300 ?m wide and 30 ?m thick, is used to bond the edges and supporting posts. For experimental evaluations, 3 mm???38 mm???38 mm TGP vapor chambers are developed. The volume density of the heat transfer device is approximately 1.5???103?kg m?3. Measurement of mass loss and stability studies of heat transfer indicates that the vapor chamber system is hermetically sealed. Using ethanol as the operating liquid, high heat transfer performance is demonstrated. Effective thermal conductivity reaches over 2500 W m?1???K?1. Under high g environment, experimental results show good liquid transport capabilities of the wick structures.
Discoloration of human teeth by a combination of chlorhexidine and aldehydes or ketones in vitro (1971)

abstract – The ability of chlorhexidine to form colored reaction products with various aldehydes and ketones and the capacity of these products to discolor human teeth in vitro were studied. A number of the substances examined are intermediates normally occurring in oral microbial metabolism. Many of the substances proved to react with chlorhexidine to produce colored products. Acetaldehyde, glyceraldehyde‐3‐phosphoric acid, glyceraldehyde, and α‐ketoglutaric acid were the most marked chromogens. Pure hydroxyapatite as well as extracted human teeth were discolored by the reactions. In this respect, acetaldehyde exhibited by far the greatest capacity.
A novel and convenient method to immunize animals: Inclusion bodies from recombinant bacteria as antigen to directly immunize animals (2011)

Purified recombinant protein has been routinely used to immunize rabbits to produce polyclonal antibodies. The process of the purification of recombinant proteins from bacterial inclusion bodies is both labor intensive and time consuming. To determine whether whole inclusion bodies can be used as antigen in polyclonal antibody production, we amplified Gallus gallus phospholipase A2 gene by RT-PCR, fused with glutathione-S-transferase (GST), and expressed recombinantEscherichia coli strain Rosseta (DE3) in the form of inclusion bodies. The inclusion bodies isolated from the bacteria cells were directly injected into rabbits and hens at 300 μg dose four times. Western blot was performed to detect antibodies in serum and in egg yolk, which revealed strong immunoreactions. The results suggested that using recombinant protein-containing inclusion bodies as antigen is a novel and convenient method to immunize animals for polyclonal antibody production.   Key words: Polyclonal antibodies, inclusion bodies, antigen, recombinant phospholipase A2.
THE ACTIVATION OF OXYGEN BY ELECTRON IMPACT (1929)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTHE ACTIVATION OF OXYGEN BY ELECTRON IMPACTRobert H. DaltonCite this: J. Am. Chem. Soc. 1929, 51, 8, 2366–2374Publication Date (Print):August 1, 1929Publication History Published online1 May 2002Published inissue 1 August 1929https://pubs.acs.org/doi/10.1021/ja01383a009https://doi.org/10.1021/ja01383a009research-articleACS PublicationsRequest reuse permissionsArticle Views27Altmetric-Citations4LEARN 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