gebhart/patrepeval huggingface dataset:
Fully automated calcium detection using optical coherence tomography (2013)

Optical Coherence Tomography (OCT) is a new invasive technology for performing high-resolution cross-sectional imaging of the coronary arteries. In OCT images only Calcified plaque (CA) components can be accurately depicted as light penetrates hard tissue. In this work we present an automated method for detecting CA in OCT images. The method is fully automated as no user intervention is needed and includes three steps. In the first step the region between the lumen and the maximum penetration depth of OCT from the lumen border is determined. In the second step the region is classified into 3 clusters using the K-means algorithm. CA is identified using the results of k-means. The method was validated using experts' annotations on 27 images. The sensitivity of the method is 83% with Positive predictive value (PVV) 74 %.
Miniature fiber optic pressure sensor for turbomachinery applications (1999)

Development of pressure sensors for the instrumentation of experimental aerodynamic facilities has traditionally concentrated on electrical techniques. An improvement in the currently attainable temporal and spatial resolution in pressure measurement would be beneficial in the characterization of turbulent flows behind turbine rotor stages, for example. We present results obtained in a turbine test rig from a fiber optic pressure sensor based upon the interferometric response of an extrinsic cavity formed between the interrogation fiber and a reflective diaphragm. We discuss the design trade offs, optical interrogation and temperature sensitivity of such a configuration, and demonstrate the success of the design in small-scale shock tube experiments. We then describe the application of the sensor in a full scale turbine test facility in which pressure signals with frequency components exceeding 200 kHz were obtained.
A Microparticle/Hydrogel Combination Drug-Delivery System for Sustained Release of Retinoids (2012)

Sustained release of therapeutic levels of 9-cis-retinoids was achieved in Lrat(-/-) mice by subcutaneous injection in a microparticle/hydrogel drug-delivery system. Both subcutaneous and intravitreal injections of drug-loaded microparticles into Lrat(-/-) mice improved visual function and retinal structure.
Adaptive controller design for a sensorless IPMSM drive system with a maximum torque control (2006)

An advanced controller design for a sensorless interior permanent-magnet synchronous motor control system is proposed. A maximum torque/ampere control algorithm is used to improve the torque performance of the drive system. In addition, an adaptive controller combined with the maximum torque/ampere control is proposed to obtain a good transient response and a good load disturbance rejection capability. The proposed control method can be applied to both a sensorless adjustable speed control system and a sensorless position control system. Using the Lyapunov stability theory and Barbalat’s lemma it is shown that the closed-loop sensorless control system is an asymptotical stable system. A 32-bit digital signal processor is used to execute the rotor position estimation algorithm and the control algorithm. Experimental results validate the theoretical analysis and show the correctness and feasibility of the proposed system.
Activation of Divergent Neuronal Cell Death Pathways in Different Target Cell Populations during Neuroadapted Sindbis Virus Infection of Mice (2000)

Infection of adult mice with neuroadapted Sindbis virus (NSV) results in a severe encephalomyelitis accompanied by prominent hindlimb paralysis. We find that the onset of paralysis parallels morphologic changes in motor neuron cell bodies in the lumbar spinal cord and in motor neuron axons in ventral nerve roots, many of which are eventually lost over time. However, unlike NSV-induced neuronal cell death found in the brain of infected animals, the loss of motor neurons does not appear to be apoptotic, as judged by morphologic and biochemical criteria. This may be explained in part by the lack of detectable caspase-3 expression in these cells.
Arrow of time and its reversal on the IBM quantum computer (2019)

Uncovering the origin of the "arrow of time" remains a fundamental scientific challenge. Within the framework of statistical physics, this problem was inextricably associated with the Second Law of Thermodynamics, which declares that entropy growth proceeds from the system's entanglement with the environment. This poses a question of whether it is possible to develop protocols for circumventing the irreversibility of time and if so to practically implement these protocols. Here we show that, while in nature the complex conjugation needed for time reversal may appear exponentially improbable, one can design a quantum algorithm that includes complex conjugation and thus reverses a given quantum state. Using this algorithm on an IBM quantum computer enables us to experimentally demonstrate a backward time dynamics for an electron scattered on a two-level impurity.
Detection of proteolytic (C 3‐cleaving) activity on mouse mastocytoma (P815) cells and other mouse cell lines by formation of cell contact with C 3‐carrying mouse lymphocytes (1979)

Mouse mastocytoma cells (P 815) formed rosettes with normal mouse spleen lymphocytes which had been coated with uncleaved human C 3; this interaction was clearly dependent on the amount of C 3. Lymphocytes treated with C 3 b or buffer alone were ineffective. Formation of cell contact could be inhibited by the presence of protease inhibitors such as diisopropyl fluorophosphate, phenyl methyl sulfonyl fluoride and tosyllysyl chloromethyl ketone. Seve n out of 13 different cell lines behaved like P 815 cells. The results strongly suggested that a proteolytic activity on mouse tumor cells led to a cooperation with uncleaved C 3 on a carrier cell to connect these two cells. We interpreted these data in analogy to the complement-dependent bridge formation mechanism (M. P. Dierich and B. Landen, J. Exp. Med. 1977. 146: 1484): uncleaved C 3, attached to mouse spleen lymphocytes as carriers, becomes cleaved by enzymes associated with the tumor cells tested; by this cleavage, the labile binding site is released on C 3 (nascent C 3 b) and anchors the C 3-carrying cell to the protease-carrying cell; since this labile binding site is short-lived, this process can be induced by membrane-associated proteases only. The nature of the proteases and the biological implications of this process are as yet uncertain.
Effect of the Regiochemistry of Butyl Amide Substituents on the Solution-State Structures of Lanthanide(III) DOTA-Tetraamide Complexes (2009)

The coordination geometry adopted by the lanthanide complexes of DOTA-tetraamides is a critical factor in determining their water exchange kinetics. Controlling the water exchange kinetics of DOTA-tetraamide complexes, and by extension their coordination geometry, is of particular interest because of the potential application of this class of complex as PARACEST MRI contrast agents. To facilitate the maximum CEST effect at the lowest pre-saturation powers much slower exchange kinetics are required than are commonly observed with these types of chelates. Complexes that adopt the more slowly exchanging square antiprismatic coordination geometry are therefore preferred; however, the factors that govern which coordination geometry is preferred remain unclear. A series of DOTA-tetraamide complexes with butyl amide substituents in different regioisomeric configurations provides some insight into these factors. The population of each coordination geometry was found to vary substantially depending upon the regiochemistry of the butyl amide substituent. It was observed that the twisted square antiprism coordination geometry, usually favored in complexes with the larger lanthanide ions only, is also increasingly favored for certain DOTA-tetraamide complexes with the smaller lanthanides. This is in marked contrast to simple DOTA-tetraamide complexes such as DOTAM. The effect was more prevalent in complexes formed with more bulky and more electron donating amide butyl substituents. It is also associated with loss of an inner-sphere water molecule from the complexes of later lanthanides that adopt the twisted square antiprismatic geometry. The complexes with sec-butyl substituents are inherently more complicated because of the introduction of a stereochemical center into each pendant arm. Unlike chiral complexes with larger amide substituents there is no "locking" effect of the orientation of the pendant arms in these complexes and up to four diastereoisomeric coordination isomers can be observed.
Novel polyamide composite membranes for gas separation prepared by interfacial polycondensation (1997)

Interfacial polycondensed composite membranes are well known for reverse osmosis. This study describes the preparation of interfacial polymerized composite membranes for gas separation obtained from new polyamides. The polymers were synthesized by derivates of terephthaloylchloride and commercially available multifunctional amines. The membrane polymers consist of linear or crosslinked chains. A high flux of carbon dioxide, 0.3 m3m−2h−1bar−1, was observed, combined with a carbon dioxide/nitrogen selectivity up to 30. The permeability to hydrocarbons increased with hydrocarbon vapor concentrations. The synthesis of the thin polyamide layer was transmitted to a continuous production. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 63: 1557–1563, 1997
A new method of optically reading domains in Bismuth Titanate for display and memory applications (1971)

Three previously proposed methods of optically detecting ferroelectric domains in bismuth titanate (Bi <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">4</inf> Ti <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> O <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">12</inf> ) are reviewed and the merits of each discussed. A fourth method which is introduced involves a tilt of a natural crystal plate about the b axis and utilizes the difference in birefringence between domains. The major advantages of the new read method are its high efficiency and contrast and its insensitivity to the optical degradation or "depoling" which occurs after repeated polarization reversals. Resolution test patterns written into Bi <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">4</inf> Ti <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> O <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">12</inf> crystals via a photoconductor film show up to 90 lines/mm resolution. In addition, photographic images have been stored, demonstrating a gray-scale capability.
A Current Copying Structure for Current-mode monotonic Digital-to-Analog converters (2006)

This paper describes a 12-bit current mode digital to analog converter. Circuit topology uses two arrays of 64 equal current sources, each one generating both the current associated to six bits, corresponding to either MSB or LSB parts. The main novelty of that topology is the method used to limit the maximum current provided by the LSB block, which ensures a monotonic behavior of the system. The circuit has been designed and fabricated using a 0.35 mum CMOS process and occupies an area of 0.17 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup>
Artemisia in Herodotus (1988)

Research Article| April 01 1988 Artemisia in Herodotus Rosaria Vignolo Munson Rosaria Vignolo Munson Search for other works by this author on: This Site PubMed Google Scholar Classical Antiquity (1988) 7 (1): 91–106. https://doi.org/10.2307/25010881 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Cite Icon Cite Search Site Citation Rosaria Vignolo Munson; Artemisia in Herodotus. Classical Antiquity 1 April 1988; 7 (1): 91–106. doi: https://doi.org/10.2307/25010881 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentClassical Antiquity Search This content is only available via PDF. Copyright 1988 The Regents of the University of California Article PDF first page preview Close Modal You do not currently have access to this content.
Effects of the Soluble Fiber Complex PolyGlycopleX? on Glucose Homeostasis and Body Weight in Young Zucker Diabetic Rats (2011)

Dietary fiber can reduce insulin resistance, body weight, and hyperlipidemia depending on fiber type, water solubility, and viscosity. PolyGlycopleX(®) (PGX(®)) is a natural, novel water soluble, non-starch polysaccharide complex that with water forms a highly viscous gel compared to other naturally occurring dietary fiber. We determined the effect of dietary PGX(®) vs. cellulose and inulin on the early development of insulin resistance, body weight, hyperlipidemia, and glycemia-induced tissue damage in young Zucker diabetic rats (ZDFs) in fasted and non-fasted states. ZDFs (5 weeks old) were fed a diet containing 5% (wgt/wgt) cellulose, inulin, or PGX(®) for 8 weeks. Body weight, lipids, insulin, and glucose levels were determined throughout the study and homeostasis model assessment (HOMA) was used to measure insulin sensitivity throughout the study in fasted animals. At study termination, insulin sensitivity (oral glucose tolerance test, OGTT) and kidney, liver, and pancreatic histopathology were determined. Body weight and food intake were significantly reduced by PGX(®) vs. inulin and cellulose. Serum insulin in fasted and non-fasted states was significantly reduced by PGX(®) as was non-fasted blood glucose. Insulin resistance, measured as a HOMA score, was significantly reduced by PGX(®) in weeks 5 through 8 as well as terminal OGTT scores in fed and fasted states. Serum total cholesterol was also significantly reduced by PGX(®). PGX(®) significantly reduced histological kidney and hepatic damage in addition to reduced hepatic steatosis and cholestasis. A greater mass of pancreatic β-cells was found in the PGX(®) group. PGX(®) therefore may be a useful dietary additive in the control of the development of the early development of the metabolic syndrome.
Salivary-agglutinin-mediated adherence of Streptococcus mutans to early plaque bacteria (1991)

Interspecies binding is important in the colonization of the oral cavity by bacteria. Streptococcus mutans can adhere to other plaque bacteria, such as Streptococcus sanguis and Actinomyces viscosus, and this adherence is enhanced by saliva. The salivary and bacterial molecules that mediate this interaction were investigated. Salivary agglutinin, a mucinlike glycoprotein known to mediate the aggregation of many oral streptococci in vitro, was found to mediate the adherence of S. mutans to S. sanguis or A. viscosus. Adherence of S. mutans to saliva- or agglutinin-coated S. sanguis and A. viscosus was inhibited by antibodies to the bacterial agglutinin receptor. Expression of the S. sanguis receptor (SSP-5) gene in Enterococcus faecalis increased adhesion of this organism to saliva- or agglutinin-coated S. sanguis and A. viscosus. This interaction could be inhibited by antibodies to the agglutinin receptor. The results suggest that salivary agglutinin can promote adherence of S. mutans to S. sanguis and A. viscosus through interactions with the agglutinin receptor on S. mutans.
2005-2006 Our Performance Highlights -- Table of Contents (2007)

An overview of Canada Revenue Agency (CRA) performance for 2005-2006, including a regional perspective. The information is drawn from the Annual Report, the Annual Corporate Survey of taxpayers and benefit recipients, and our triennial Employee Survey.
Summarising complex ICU data in natural language. (2008)

It has been shown that summarizing complex multi-channel physiological and discrete data in natural language (text) can lead to better decision-making in the intensive care unit (ICU). As part of the BabyTalk project, we describe a prototype system (BT-45) which can generate such textual summaries automatically. Although these summaries are not yet as good as those generated by human experts, we have demonstrated experimentally that they lead to as good decision-making as can be achieved through presenting the same data graphically.
Afghan Percutaneous Osteotomy (1993)

An alternate technique to corticotomy for osteotomies to be used with external fixation is described. Percutaneous subperiosteal dissection is followed by passage of a Gigli saw and bone division. In contrast to corticotomy, the endosteum is divided, but the surrounding soft tissue envelope is less disrupted. In > 50 percutaneous Afghan osteotomies of the distal femur or proximal tibia, prompt healing has occurred in all cases, with no neurovascular complications. Two patients who had previously undergone corticotomy reported less pain after Afghan osteotomy. The technique is not applicable to the mid-femur because of the proximity of the profunda femoral artery.
Ant colony optimization for microgrid multi-objective power management (2009)

Steadily increasing needs for electrical power, progress in power deregulation, tight construction constraints on new high voltage lines for long distance power transmission, and global environmental concerns have created increased interest in alternative energy (AE) generation. Hybrid combination of AE sources can significantly improve their reliability and better deliver power to customer loads without reliance on centralized electricity production. It is expected that alternative energy distributed generation (AEDG) microgrids that capitalize on diverse energy sources, are controlled in a decentralized way, and reduce the burden on the utility grid by generating power close to the consumer will penetrate the existing grid-infrastructure in the near future. This paper presents a framework for an intelligent supervisory controller that utilizes ant colony optimization (ACO) methods for AEDG microgrid dispatch control. The novelty of this work is the application of ACO to the rapid microgrid power management problem given complex constraints and objectives including: environmental, fuel/resource availability, and economic considerations. Given the compound nature of the multi-objective, multi-constraint energy management problem for integrated AEDG systems, this paper develops a constraint satisfaction problem (CSP) algorithm capable of finding Pareto optimal dispatch solutions. Microgrid power management control is not an easy problem, but its development is critical for widespread AEDG system implementation.
An SMS-Based e-Government Model (2010)

Delivering public services through SMS (SMS-based e-government) is becoming popular in developed and developing countries as a strategy to engage more citizens in using e-government services. Current advances in SMS-based e-government applications by local authorities in developed and developing countries are investigated to determine what extent SMS-based e-government could deliver existing Internet-based e-government services and whether these services can fulfil the actual needs of e-government services users. The currently available SMS-based e-government services are presented as a model with six levels: Listen, Notification, Pull-based Information, Communication, Transaction, and Integration levels. The model classifies the SMS-based e-government services into levels based on the direction of communication, the complexity of the services and the benefits received by citizens; the higher the level the more complex the services and the more benefits received by citizens. The SMS-based e-government model is compared to Internet-based e-government models and typical e-government use to show SMS-based e-government can deliver almost all of the service offerings of Internet-based e-government and meet the requirements of e-government users except for downloading forms. The outcome justifies the development of SMS-based e-government services.
Next-Generation Sequencing of Pulmonary Sarcomatoid Carcinoma Reveals High Frequency of Actionable <i>MET</i> Gene Mutations (2015)

Mutational events of MET leading to exon 14 skipping are frequent and potentially targetable events in PSC.
Johann Rudolph Glauber (1604-70). His chemical and human philosophy (1942)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTJohann Rudolph Glauber (1604-70). His chemical and human philosophyEva V. Armstrong and Claude K. Deischer Cite this: J. Chem. Educ. 1942, 19, 1, 3Publication Date (Print):January 1, 1942Publication History Received3 August 2009Published online1 January 1942Published inissue 1 January 1942https://doi.org/10.1021/ed019p3RIGHTS & PERMISSIONSArticle Views125Altmetric-Citations2LEARN 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 InReddit PDF (6 MB) Get e-Alerts Get e-Alerts
High-voltage planar devices using field plate and semi-resistive layers (1991)

An improved high-voltage technique based on the use of a field plate combined with semiresistive layers (SIPOS) on oxide is proposed. The field plate and SIPOS (semi-insulating polycrystalline silicon) are shown to have complementary functions. Junction curvature electric field effects are reduced by the presence of the field plate. The silicon surface potential is linearized by a primary SIPOS layer on oxide, thereby reducing the peak electric field at the edge of the field plate. A second high-resistivity SIPOS layer provides an excellent passivation, and also prevents the dielectric breakdown of the underlayer SIPOS film. Moreover, the savings in chip area is about 20% compared to the standard mesa termination. The global yield is 94% for the SIPOS planar transistors and 86% for equivalent devices in mesa technology. The complete fabrication, design, electrical characteristics, and reliability of high-voltage planar transistors are described.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
High precision edge prediction for intra coding (2008)

In the current video coding standard H.264/AVC, eight directional intra prediction modes are defined to predict edges in a block by using the already coded surrounding reference pixels. The H.264/AVC intra prediction scheme offers a limited set of prediction directions. Therefore, edges of certain directions cannot be accurately predicted. In the case of sharp edges, the inaccurate prediction leads to high frequency coefficients in the prediction error, that are expensive to code. To improve the prediction of edges, a new edge prediction method is introduced. This method detects the presence of an edge in the surrounding blocks and uses an extension of it along its exact direction for the prediction. Since this proposed method allows prediction in any direction without any additional overhead, bitrate reductions of 8% for sequences containing a lot of edges are achieved.