gebhart/patrepeval huggingface dataset:
Imferon Agar:Improved MediumforIsolation of Pathogenic Neisseria (1977)

Imferon, an iron-dextran complex, enhances thegrowth ofNeisseria gonorrhoeaeandN.meningitidis. Theuse ofImferon as a replacement forferric nitrate, ina defined supplement forGC.agar,significantly increased theaveragecolony sizes ofbothgonococci andmenixgococci. Incomparison withThayerMartinmedium,Imferon agar increased thespeedandrateofisolation of gonococci fromclinical specimens. Theincidence ofgonorrhea hascurrently reached epidemic proportions: intheUnited States last year,onemillion newcaseswere reported, andthis isonlyafraction oftheincidenceofinfection withNeisseria gonorrhoeae (3). Control ofthedisease iscomplicated bythe large reservoir ofasymptomatic carriers (5,11). Detection ofasymptomatic, aswellassymptomatic, infections necessitates theuseofasuitableculture medium. Themostwidely usedmedium,Thayer-Martin medium(12), isless than 100%efficient inisolation ofN.gonorrhoeae. Various reports suggest thatisolation rates rangefrom40%(6)toapproximately 90%(2), i.e., that10to60%ofinfected individuals would remainunrecognized after asingle culture. Improvements intheefficacy ofdiagnostic media couldgreatly assist efforts tointerrupt the spread ofgonorrhea. Speedandaccuracy are evenmoreimportant inthediagnosis ofinfections withN.meningitidis, apotentially lifethreatening pathogen forwhichThayer-Martin mediumisalsoused. Alterations intheavailability oftheessential element ironhavepreviously beenshown toaffect boththegrowth (7)andthevirulence (10) ofthegonococcus. During ourstudies on theeffects ofirononvirulence ofgonococcal colony types (10), itwasobserved thatcolonies ofgonococci, plated bya modification ofthe droptechnique ofMilesandMisra(9), were larger whentheinocula contained addediron intheformofaniron-dextran complex (Imferon). Accordingly, weevaluated theeffects of Imferon ongrowth ofthepathogenic Neisseria invitro andextended theobservations bycomparisons oftheefficacies ofvarious isolation mediaindetecting N.gonorrhoeae.
Solvato-morphologically controlled photo-responsive hydrogels for micro-valve applications (2015)

In recent literature, photo-responsive hydrogels have been synthesised by co-polymerisation of N-isopropylacrylamide (NIPAAM) with spiropyran (SP) derivatives. This process demands external protonation of the hydrogels to induce re-swelling, typically by immersing the hydrogel in strong acidic environments. Also the re-swelling times are long, typically up to several hours. These disadvantages have restricted the use of photo-actuated hydrogels to single-use applications.\n\tRecently, we reported that the addition of acrylic acid (AA), copolymerised within the hydrogel, provides an internal source of protons that allows photo-actuation in neutral pH environments. [Bartosz, et al. 1]\nThe polymerisation solvent influences the morphology of the hydrogel, by producing porous hydrogels of different pore sizes. This impacts the diffusion path length for water molecules moving in/out of the hydrogel matrix, thus altering the swelling and shrinking kinetics of the hydrogel.[2] \n\tIn this study photo-actuated hydrogels were generated using p(NIPAAM-co-SP-co-AA) copolymer, in a 100-1-5 mole ratio. Different ratios of water: organic solvent (tetrahydrofran (THF), dioxane and acetone) were used as the polymerisation solvent. This resulted in hydrogels with different pore sizes and different swelling/shrinking and actuation kinetics. By using THF:water (4:1 v:v) as the polymerization solvent, a remarkable contraction in hydrogel size of up to 50% was obtained after four minutes of white light irradiation. Optimising these hydrogels by varying the polymerization solvent has resulted in faster and reproducible shrinking and reswelling cycles.\nUsing the different polymerisation solvents, hydrogel microstructures were photo-polymerised around pillars in-situ inside PDMS/glass microfluidic channels for valve applications. When actuated, the valve contracted thus opening the channel and allowing fluid to flow. The opposite was seen when the valve was kept in the dark. Thus demonstrating successful photo-controlled valves in microfluidic systems.
Dynamic Buffering Control Scheme for Mobile Handoff (2006)

In a mobile environment, as a mobile node moves from one point of attachment to another during an ongoing application session it is subjected to packet loss due to network and link layer transition. Such packet loss affects the quality of ongoing communication session such as interactive VoIP traffic and streaming media. We provide a solution to this scenario by buffering packets for the mobile node at an access router or network node near the edge of the network where mobile may be moving away from or moving towards. The buffered packets are then forwarded to the mobile node once the handoff process completes. The buffering scheme is used in conjunction with existing mobility protocols, access protocols or as an independent network or link layer mechanism. Ability to control the buffer dynamically provides a reasonable trade-off between delay and packet loss which is within the threshold limit for real-time communication. The overview and mechanisms of such schemes are described and comparisons on existing buffering schemes are also provided
Polygon Signature And Motor Hunt Correction (1984)

Scan velocity variation in a flying spot laser scanner is a major contributor to pixel placement errors. Two sources of scan velocity variation are Motor Hunt and Polygon Signature. Since the incremental change in frequency needed to correct scan velocity variation may be very small, a highly accurate method is required to both measure the facet-dependent velocity differences and correct them.' An all-digital system which has the required high accuracy has been successfully demonstrated for the correction of these effects. The system employs a crystal time base and adjusts the frequency of a bit clock by fractional control of its phase. The accuracy of the measurements of the polygon characteristics is augmented by averaging many measurements.
Defect Tolerance Based on Coding and Series Replication in Transistor-Logic Demultiplexer Circuits (2007)

We present a family of defect tolerant transistor-logic demultiplexer circuits that can defend against both stuck-ON (short defect) and stuck-OFF (open defect) transistors. Short defects are handled by having two or more transistors in series in the circuit, controlled by the same signal. Open defects are handled by having two or more parallel branches in the circuit, controlled by the same signals, or more efficiently, by using a transistor-replication method based on coding theory. These circuits are evaluated, in comparison with an unprotected demultiplexer circuit, by: 1) modeling each circuit's ability to tolerate defects and 2) calculating the cost of the defect tolerance as each circuit's redundancy factor R, which is the relative number of transistors required by the circuit. The defect-tolerance model takes the form of a function giving the failure probability of the entire demultiplexer circuit as a function of the defect probabilities of its component transistors, for both defect types. With the advent of defect tolerance as a new design goal for the circuit designer, this new form of performance analysis has become necessary.
Spindle retracting mechanism for disk record player (1982)

Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Larry M. Hughes, Kenneth L. George; Spindle retracting mechanism for disk record player. J. Acoust. Soc. Am. 1 September 1982; 72 (3): 1100. https://doi.org/10.1121/1.388287 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 ContentAcoustical Society of AmericaThe Journal of the Acoustical Society of America Search Advanced Search |Citation Search
Capillary networks - bridging the cellular and IoT worlds (2015)

The Internet of Things (IoT) represents a new revolutionary era of computing technology that enables a wide variety of devices to interoperate through the existing Internet infrastructure. The potential of this era is boundless, bringing in new communication opportunities in which ubiquitous devices blend seamlessly with the environment and embrace every aspect of our lives. Capillary networks will be a fundamental part of the IoT development, enabling local wireless sensor networks to connect to and efficiently use the capabilities of cellular networks through gateways. As a result, a vast range of constrained devices equipped with only short-range radio can utilize the cellular network capabilities to gain global connectivity, supported with the security, management and virtualization services of the cellular network. This paper introduces a new Capillary Network Platform and describes the rich set of functionalities that this platform enables. To show their practical value, the functionalities are applied to a set of typical scenarios. The aim of this paper is to give the reader insight about the Capillary Network Platform and illustrate how this work can be used to enhance the existing IoT networks and tackle their problems.
Characterization of voltage-sensitive sodium channel gene coding sequences from insecticide-susceptible and knockdown-resistant house fly strains (1996)

The kdr insecticide resistance trait of the house fly (Musca domestica .L.), which confers reduced neuronal sensitivity to DDT and pyrethroid insecticides, was previously shown to exhibit tight genetic linkage to restriction fragment length polymorphism markers lying within a voltage-sensitive sodium channel gene that is homologous to the para gene of Drosophila melanogaster. In the present study, the 6315 nucleotide coding sequences of this voltage-sensitive sodium channel gene from insecticide-susceptible (NAIDM strain) and kdr (538ge strain) house flies were determined by automated direct DNA sequencing of PCR fragments obtained by amplification on first strand cDNA from adult heads. The deduced 2105-residue amino acid sequence from each strain exhibited overall structure and organization typical of sodium channel alpha subunit genes and was 90.0% identical to that of the D. melanogaster para gene product. We did not detect any splice variants among voltage-sensitive sodium channel cDNAs obtained from adult house fly head preparations. Comparison of the coding sequence of the voltage-sensitive sodium channel gene of the kdr house fly strain to that of the NAIDM strain revealed 12 amino acid differences in the 538ge strain. The significance of these polymorphisms as candidate resistance-conferring mutations is discussed.
Properties of Ag-Sheathed Bi-Pb-Sr-Ca-Cu-O Superconducting Tapes Prepared by the Intermediate Pressing Process (1990)

The influence of an intermediate pressing process on the superconducting properties of Ag-sheathed Bi-Pb-Sr-Ca-Cu-O superconducting tapes has been investigated. The critical current density ( J c ) was improved by the effect of the uniaxial pressing and by a sintering process after the initial sintering. The maximum transport J c at 77.3 K under zero magnetic field was indicated as 2.36×10 4 A/cm 2 , and that at 4.2 K under zero magnetic field was indicated as 1.5×10 5 A/cm 2 . The magnetic field dependence on the J c at 4.2 K was summarized as follows: 5×10 4 A/cm 2 ( I ⊥ H , C -axis⊥ H , 10 T) and 3×10 4 A/cm 2 ( I ⊥ H , C -axis// H , 10 T).
Methods for efficient certificate revocation list compression (2010)

A method for providing efficient management of certificate revocation may comprise storing a list of identifiers of digital certificates including a revocation list defining a list of revoked certificates in an accumulator, storing a witness value in association with at least some entries in the revocation list in which the witness value provides proof of the membership or non-membership of an identifier in the revocation list, enabling generation of a new accumulator and a new witness value responsive to each insertion or deletion of an entry in the revocation list, and enabling batch updates to the revocation list using a reduced bit length value generated based on to a ratio of a value generated based on elements added to the revocation list to a value generated based on elements deleted from the revocation list. A corresponding apparatus is also provided. A method for certificate authorities (CA) that use Bloom filters for certificate revocation list (CRL) compression that enables the CA to hash only the entry that is to be un-revoked so that a good compression rate may be provided while avoiding computation of the entire CRL for each un-revocation.
Polyvinyl Acetate as a High‐gloss Edible Coating (1999)

ABSTRACT Edible coating formulations were made with food‐grade polyvinyl acetate (PVA) dissolved in alcohol‐water mixtures. PVA coatings had high gloss and relatively high permeance to O 2 and water vapor, and they formed glossy surfaces on chocolate candy, citrus fruit, and apples. Addition of propylene glycol helped to retain coating gloss when the alcohol content of the solvent was reduced to less than 70%. Fresh apples or citrus fruit with PVA coatings had higher internal O 2 than fruit with shellac and resin coatings and, consequently, less tendency to ferment and produce alcohol during storage. Fruit with PVA coatings did not whiten or ‘blush’ after contact with water.
Evidence Against a Role for Human Papillomavirus in Colon Neoplasms (1991)

<i>To the Editor</i>. —In the article by Kirgan et al<sup>1</sup>in the July 1990 issue of theArchives, the authors note that human papillomavirus (HPV) antigen and DNA were present in a large percentage of colon carcinomas, normal colonic mucosa, and benign colon tumors. These findings are the opposite of what has been described by others in the genital tract and colon. Human papilloma-virus DNA and HPV antigens are rarely found in normal genital tract tissues using in situ hybridization or immunohistochemistry.<sup>2,3</sup>Further, when the antigen is detected, the DNA is invariably also detected. Using more sensitive techniques (Southern blot analysis and the polymerase chain reaction, which can detect as few as 10 viral particles<i>per million cells</i>compared with 10 viruses<i>per cell</i>with the in situ method), several investigators have not been able to detect HPV DNA in colon tumors.<sup>4,5</sup>When the results from these
Whispering gallery microcavity lasers (2012)

Abstract Whispering gallery mode (WGM) optical microresonators have attracted intense interests in the past decades. The combination of high quality factors ( Q ) and small mode volumes of modes in WGM resonators significantly enhances the light‐matter interactions, making them excellent cavities for achieving low threshold and narrow linewidth lasers. In this Review, the progress in WGM microcavity lasers is summarized, and the laser performance considering resonator geometries and materials as well as lasing mechanisms is discussed. Label‐free detection using WGM resonators has emerged as highly sensitive detection schemes. However, the resolution is mainly limited by the cavity Q factor which determines the mode linewidth. Microcavity lasers, due to their narrow laser spectral width, could greatly improve the detection resolution. Some recent developments in sensing using microcavity lasers are discussed.
Initial investigation of strengthening agents for lanthanide halide scintillators (2007)

Lanthanide halide alloys have recently enabled scintillating gamma ray spectrometers comparable to room-temperature semiconductors (< 3% FWHM energy resolutions at 662keV). However brittle fracture of these materials hinders the growth of large volume crystals. Efforts to improve the strength through non-lanthanide alloy substitution, while preserving scintillation, are being pursued. Isovalent alloys nominal Ce<sub>0.9</sub>Al<sub>0.1</sub>Br<sub>3</sub>, Ce<sub>0.9</sub>Ga<sub>0.1</sub>Br<sub>3</sub>, Ce<sub>0.9</sub>Sc<sub>0.1</sub>Br<sub>3</sub>, Ce<sub>0.9</sub>In<sub>0.1</sub>Br<sub>3</sub> and Ce<sub>0.8</sub>Y<sub>0.2</sub>Br<sub>3</sub>, as well as aliovalent alloys nominal (CeBr<sub>3</sub>)<sub>0.99</sub>(CdCl<sub>2</sub>)<sub>0.01</sub>, (CeBr<sub>3</sub>)<sub>0.99</sub>(CdBr<sub>2</sub>)<sub>0.01</sub>, (CeBr<sub>3</sub>)<sub>0.99</sub>(ZnBr<sub>2</sub>)<sub>0.01</sub>, (CeBr<sub>3</sub>)<sub>0.99</sub>(CaBr<sub>2</sub>)<sub>0.01</sub>, (CeBr<sub>3</sub>)<sub>0.99</sub>(SrBr<sub>2</sub>)<sub>0.01</sub>, (CeBr<sub>3</sub>)<sub>0.99</sub>(PbBr<sub>2</sub>)<sub>0.01</sub>, (CeBr<sub>3</sub>)<sub>0.99</sub>(ZrBr<sub>4</sub>)<sub>0.01</sub>, (CeBr<sub>3</sub>)<sub>0.99</sub>(HfBr<sub>4</sub>)<sub>0.01</sub> were prepared. All of these alloys exhibit bright fluorescence under UV excitation, with varying shifts in the spectral peaks and intensities relative to pure CeBr<sub>3</sub>. Further, these alloys scintillate when coupled to a photomultiplier tube (PMT) and exposed to <sup>137</sup>Cs gamma rays. These data and the potential for improved crystal growth will be discussed.
Reduced-complexity ML decodable STBCs: Revisited design criteria (2015)

In this work, we revisit the structure of weight matrices for Linear Dispersion STBCs to admit ML decoding with low-complexity. We first propose novel sufficient design criteria for linear STBCs considering an arbitrary number of antennas and an arbitrary coding rate. Then we apply the derived criteria to three families of codes, multi-group decodable, fast decodable, and fast-group decodable codes. We provide analytical proofs showing that the ML-decoding complexity of such codes depends only on the weight matrices and their ordering and not on the channel gains or the number of antennas and explaining why the so far used Hurwitz-Radon theory-based approaches do not exactly determine the complexity of all classes of STBCs under ML decoding.
A Comparison of MAC Protocols for Ultrasonic Intra-body Sensor Networks (2014)

Wireless intra-body networks of implantable biomedical devices have the potential to enable revolutionary healthcare and clinical applications. In our previous work we investigated the use of ultrasonic waves as an alternative to RF waves as physical carrier of information, and proposed Ultrasonic W
Comparison of the <i>in vivo</i> autologous skin test with <i>in vitro</i> diagnostic tests for diagnosis of chronic autoimmune urticaria (2009)

Previous studies indicate that 30-50% of chronic urticaria patients have an autoimmune etiology. Clinical diagnosis of autoimmune urticaria is supported with the autologous serum skin test. The purpose of this study was to compare two laboratory tests for measurement of IgG autoantibodies to IgE or IgE receptors and compare the results with the autologous serum and plasma skin tests. We performed skin tests and two functional in vitro tests, basophil histamine release, and CD63 up-regulation to detect autoantibodies relevant to autoimmune urticaria. Both sera and citrated plasma were evaluated in the autologous skin test and histamine release assay. Thyroid autoantibodies were also measured. Basophils were incubated with patient plasma, sera, buffer, or anti-IgE. The cells were analyzed for CD63 expression and the supernatants were recovered for histamine analysis. There was high correlation between CD63 up-regulation and histamine release assays, but histamine release was more sensitive. There was a high concordance between sera and citrated plasma for the skin test. Sera from chronic urticaria patients produced higher mean histamine release (23%) compared with citrated plasma (12%). Thirty-one percent of patients positive in the histamine release assay were also positive for thyroid autoantibodies. This compares with 12% who were negative in the histamine release assay. These data show that in vitro basophil histamine release can be used to measure antibodies to FceRI, FceRII/CD23, or IgE and identify patients with autoimmune urticaria.
Toward Creating a Coherent, Next-Generation Light Source with special emphasis on nonlinear harmonic generation in single-pass, high-gain free-electron lasers (2001)

In this work, we describe the separation of embryonic mouse hippocampal neurons from glial cells using a positive dielectrophoresis (DEP) process. Here, we have implemented a cell trapping-favorable, cell suspension solution with low conductivity. It enables positive dielectrophoresis for hippocampal neurons (thereby attracting them to the electrodes), while resulting in negative dielectrophoresis for glial cells (repelling them from the electrodes). We have systematically performed a mathematical simulation and analysis to anticipate the DEP frequency at which hippocampal neurons and glial cells are separated. Simulated DEP crossover frequencies have been experimentally verified, and new, refined glial dielectric and physical properties are suggested that better reflect the experimental results obtained. DEP movements of neurons and glial cells in targeted separation media were experimentally analyzed, under the specified electric signal. Additionally, we have confirmed our modeling results by selectively trapping neurons over electrodes on a custom-made, multi-electrode array (MEA), resulting in active recruitment of neurons over the stimulation and recording sites. This technique is a valuable addition to the toolbox for creating more functional and versatile multi-electrode arrays.
Study for the Arc Phenomena of TIG-MIG Hybrid Welding Process by 3D Numerical Analysis Model (2012)

Hybrid welding process is effective technique to solve the problem of the welding execution by combining the merit of various heat sources. However, the hybrid welding process is complicated by interaction of the heat sources and selection of the suitable welding condition is difficult. The numerical analysis enables to investigate an influence of each parameter on hybrid arc phenomena theoretically. In this study, we simulated the influence of the hybridization condition such as TIG current and torch angles on the TIG-MIG hybrid arc phenomena. The main results are as follows: (1) Repulsion between TIG and MIG arc depends on the distance between the tip of both electrodes. (2) More than certain degree of TIG and MIG torches that is cross each other causes formation of direct current path between both electrodes. (3) The direct current does not increase so much with TIG current and reaches upper limit in certain value. When the TIG current is over the limit value, all increase current flow forward the base metal, and contributes to heat input.
Transient radiation modeling of short-pulse laser detection of tumors in animal model (2009)

The objective of this paper is to perform a comprehensive experimental and numerical analysis of the short pulse laser interaction with tissue medium with the goal of tumor / cancer diagnostics. For a short pulse laser source, the shape of the output signal is a function of the optical properties of the medium and hence the scattered temporal optical signal helps in understanding of the medium characteristics. In this paper the scattered reflected optical signals from the tissue medium are modeled using the transient radiative transport equation (RTE) solved by the discrete ordinates technique. In vivo imaging was performed on anaesthetized rats with tumorogenic agents injected inside skin tissues and on anaesthetized mouse with mammary tumors. The numerical results are compared with the experimental data to validate the model and demonstrate the feasibility of the time-resolved technique in detecting tumors in animal model.