gebhart/patrepeval huggingface dataset:
Hand-held terminal antennas for personal satellite communications (1995)

This paper deals with two hand-held antenna types operating with geostationary and medium earth orbit (GEO and MEO) satellite systems. They could be applied to the low earth orbit (LEO) and highly elliptical orbit (HEO) systems respectively doing the appropriate frequency scale designs. The first one is a lambda/2 (1/2 turn) quadrifilar helix (quasi-hemispherical coverage), and the second one is a self-diplexed antenna made of a circular patch and a short-circuited ring patch in stacked configuration (zenithal coverage).
Review (1989)

THE ICONOGRAPHY OF LANDSCAPE, Denis Cosgrove & Stephen Daniels, (eds.), Cambridge University Press, 1988, 318 pp., ISBN 0–521–32437–8. Shire Publications Garden History Series: RESTORING PERIOD GARDENS, John Harvey, 1988, pp. 112. FLORISTS' FLOWERS AND SOCIETIES, Ruth Duthie, 1988, pp. 96. THE ENGLISH LANDSCAPE GARDEN, Miles Hadfield, 1977, 1988, pp. 72. THE PURE LAND: A CELEBRATION OF WILD PLACES, John Beatty, Thames & Hudson, 1988, 80 colour plates, ISBN 0–500–27530–0, £12.95. ANTHONY SALVIN, Jill Allibone, Cambridge, England: Lutterworth Press, 1988, pp. 208, £19.50. DACHGÄRTEN by Roland Stifter, published by Eugen Ulmer, Stuttgart, pp. 203, DM 78.00. SCENES OF NATURE, SIGNS OF MEN, Tony Tanner, Cambridge University Press, 1987, pp. 278, ISBN 0–521–32318–5, (H/B), £25.00. THE ALLOTMENT: ITS LANDSCAPE AND CULTURE, David Crouch and Colin Ward, Faber and Faber, 1988, pp. 322, £13.95, ISBN 0–571–15010–1 NAIRN'S LONDON: THE CLASSIC GUIDEBOOK, Ian Nairn, revisited by Peter Gasson, London: Penguin Books, 1988, £8.95. NEW MILESTONES: SCULPTURE, COMMUNITY AND THE LAND, Joanna Morland, London, Common Ground, 1988, £4.95, 110 pp, ISBN 1–870364–03–1.
THE PERFORMANCE OF TRANSIT TIME FLOWMETERS IN HEATED GAS MIXTURES (1998)

An ultrasonic transit time flowmeter was tested over Reynolds numbers from 1000 to 100 000 in a calibration facility that generates gas flows with controlled temperature and composition. The gas mixtures were composed of air, nitrogen, carbon dioxide, water vapor, and argon, and the mixture temperature ranged from 290 K to 450 K. The test program was conducted to determine the sensitivity of the flowmeter output to gas composition and temperature and to find the appropriate dimensionless quantities for the presentation of calibration results. Plots of discharge coefficient versus Reynolds number collapse the data well for all of the conditions tested. Comparisons between the experimentally measured discharge coefficients and those predicted by computer models using postulated velocity profiles are presented, and they show good qualitative agreement. The effects of thermal expansion on sound path length and pipe diameter were significant over the tested temperature range.
STRUCTURAL AND FUNCTIONAL PROPERTIES OF POLYTENE NUCLEI ISOLATED FROM SALIVARY GLANDS OF <i>DROSOPHILA HYDEI </i> (1969)

Salivary gland nuclei of Drosophila hydei, isolated by a modification of the procedure described by Boyd et al. (9), retain their normal morphology during the isolation and subsequent incubation procedure. RNA synthesis was studied in isolated nuclei by biochemical and cytological techniques. In radioautographs 70% of the nuclei displayed a distribution of labeled RNA over the nuclear constituents similar to the distribution obtained after in vivo incorporation of radioactive precursor. Chromosome puffs and the nucleoli were specifically labeled. The remaining 30% of the nuclei showed a weak to very weak incorporation of radioactive precursor. In these nuclei most of the radioautographic grains were concentrated over the nucleolus, and a few grains were randomly distributed over the chromosomes. Actinomycin D and the absence of ATP, GTP, and CTP in the medium inhibited incorporation of radioactive precursor. The radioactive product was sensitive to combined pronase and RNase digestion. Addition of E. coli RNA polymerase to the incubation medium enhanced the specific labeling over the puffed regions. The sedimentation behavior of the RNA synthesized in isolated nuclei was different from that of RNA synthesized during a 20 min pulse of radioactive precursor administered to whole glands in vivo and in vitro. Neither the steroid ecdysterone nor a temperature treatment was effective in inducing new puffs in isolated nuclei.
Effect of intracameral triamcinolone to control inflammation following cataract surgery (2005)

Journal of Cataract & Refractive Surgery: August 2005 - Volume 31 - Issue 8 - p 1670-1671 doi: 10.1016/j.jcrs.2005.07.023
Nanoscale polymer carriers to deliver chemotherapeutic agents to tumours (2005)

Nanoscale polymer carriers have the potential to enhance the therapeutic efficacy of antitumour drugs as they can regulate their release, improve their stability and prolong circulation time by protecting the drug from elimination by phagocytic cells or premature degradation. Moreover, nanoscale polymeric carriers are capable of accumulating in tumour cells and tissues due to enhanced permeability and retention effect or by active targeting bearing ligands designed to recognise overexpressed tumour-associated antigens. The diversity in the polymer structures being studied as drug carriers in cancer therapy allows an optimal solution for a particular drug to be provided regarding its delivery and efficacy, and thus the patient’s quality of life. This review is focused on the different types of nanoscale polymer carriers used for the delivery of chemotherapeutic agents and on the factors that affect their cellular uptake and trafficking.
Self-Access Center and Its Application in China (2009)

At present, many universities have funded the establishment of Self-Access Centers (SACs) in China in the hope that they can facilitate Self-Access Language Learning (SALL). In order to achieve a better use of SAC in China, it is necessary to know how SAC is applied in foreign countries. Beginning with a brief introduction to SAC in the world and in China, the paper then compares Chinese SAC with its foreign counterparts. After discussing the importance of SAC evaluation, the paper points out some potential pitfalls or problems with implementing a Chinese SAC successfully. Finally, some suggestions are presented for the purpose of applying SAC more effectively and efficiently in China.
Zur Kenntnis der Vitalischen Farbreaktion. 1. Mitt.: Über β‐Eliminierungen mit Carbanion‐Zwischenstufen (1965)

Abstract In der Vitali schen Farbreaktion entsteht beim Eindampfen von Atropin (I) mit HNO 3 neben nichtnitrierten Verbindungen der 4‐Nitroatropin‐salpetersäureester (V). Außerdem wird stets auch 4‐Nitroapoatropin (VI) gefunden, das wahrscheinlich sekundär aus V durch β‐Eliminierung von HNO 3 entsteht. Sowohl V als auch VI geben mit Basen die charakteristische blauviolette Farbe. Es wird nachgewiesen, daß es sich bei der farbigen Verbindung um ein mesomeriestabilisiertes Anion handelt, das in einem β‐Eliminierungs‐Additionsgleichgewicht die Rolle einer Zwischenstufe spielt. Die verwendete Base dient dabei als Nucleophil, außer HO − können auch andere Anionbasen genügender Nucleophilie, wie CN − oder C 3 H 7 S − Verwendung finden. Die Additionsprodukte der konjugierten Säuren der letzteren an VI wurden isoliert. Die bis zur Erreichung eines Gleichgewichts ablaufende β‐Eliminierung folgt dem E 1 cB‐Mechanismus, dessen Nachweis bisher nur in Ausnahmefällen und der extrem kurzen Lebensdauer der Anionen wegen nur indirekt gelang. Die unter den Bedingungen der Farbreaktion in hoher Konzentration vorliegenden Anionen haben dagegen eine beträchtliche Lebensdauer und sind wegen ihrer im sichtbaren Spektralbereich liegenden Lichtabsorption bequem nachzuweisen und quantitativ zu verfolgen.
Long-range intensity correlations in wave reflection from a disordered medium (1995)

We present rigorous calculations for the long-range intensity correlations in multiple wave scattering from a disordered medium. The correlation function and the spatial spectrum of intensity fluctuations are analyzed for a thick slab within the framework of the model of pointlike scatterers. In reflection, the intensity fluctuations at different points are found to be negatively correlated. This is due to the constraints imposed by conservation of the energy flux. It is shown that the spatial spectrum of reflected intensity has a triangular dip similar in shape to the peak in the angular spectrum of the coherent backscattering.
Dissertations (1993)

The following abstracts were selected from a computer search using the BRS Information Technologies retrieval services of the Dissertation Abstracts International (DAI) database produced by University Microfilms International.Unless otherwise specified, paper or microform copies of dissertations may be ordered, using the UMI order number, from University Microfilms International, Dissertation Copies, Post Office Box 1764, Ann Arbor, MI 488106; telephone for U.S. (except Michigan, Hawaii, or Alaska): 800/521-3042, for Canada: 800/268-6090. Price lists, ordering, and shipping information are in the introduction to the published DAI. An alternative source for copies is sometimes provided at the end of the abstract.The dissertation titles and abstracts contained here are published with permission of University Microfilms International, publishers of Dissertation Abstracts International (copyright 1985 by University Microfilms International), and may not be reproduced without their prior permission.
NC-Programmierung (1987)

CAP bezeichnet die rechnerunterstützte Fertigungsplanung. Aufbauend auf über CAD-Systeme definierte Werkstücksgeometrie, Qualitätsanforderungen und Materialeigenschaften oder konventionelle Konstruktionszeichnungen werden Arbeitspläne und Steuerinformationen für die Teilefertigung und die Montage erzeugt.
Three novel improved CMOS capacitance scaling schemes (2010)

Three novel CMOS capacitance scaling schemes, a comparison between them and some different classic schemes are presented. The novel topologies which use a modified second generation current conveyor, an improved current mirror and a current steering configuration of OTA provide higher values of Q and better frequency responses than the classical structures using basic current mirror schemes, as the simple current mirror and two different cascode current mirrors. Simulation results for the six different studied schemes are presented.
Photoinhibition Of Hardened And Non-hardened Rye (secale Cereale L Cv Musketeer) Studied With Isolated Thylakoids, Isolated Mesophyll Cells, And Intact Leaves (1991)

Photoinhibition of photosynthesis has been shown to be more severe when combined with other stresses. This suggests a possible correlation between the capacity to grow at low temperature and an increased resistance to photoinhibition at low temperature. Previous work has shown with chlorophyll a fluorescence that rye plants (Secale cereale L. cv Musketeer) acclimated to low temperature were more resistant to photoinhibition than non-hardened rye plants. The goal of the present study was to assess whether the morphological changes observed at the leaf level and the structural changes observed at the thylakoid level during the cold hardening process were responsible for the increased resistance of cold hardened rye to photoinhibition.;Photoinhibition was monitored in hardened and non-hardened winter rye at the leaf level, with isolated mesophyll cells, and with isolated thylakoids. They were exposed to high photon fluxes at 20 and at 5{dollar}\\sp\\circ{dollar}C and recovery from photoinhibition was assessed upon return to lower photon fluxes. Room temperature chlorophyll a fluorescence, light limited CO{dollar}\\sb2{dollar} fixation rates, electron transport rates, photoacoustic spectroscopy and atrazine binding were measured during and following photoinhibition.;Cold-hardened isolated rye cells were more resistant to photoinhibition when monitored with chlorophyll a fluorescence. However, CO{dollar}\\sb2{dollar} fixation rates showed similar extent of photoinhibition in cold hardened and non-hardened isolated rye cells. Photoinhibition was similar at 5 and at 20{dollar}\\sp\\circ{dollar}C but the recovery from photoinhibition was slower when occurring at 5{dollar}\\sp\\circ{dollar}C. Both groups of cells showed similar rates of recovery. In contrast, cold hardened isolated rye thylakoids were more susceptible to photoinhibition which mainly affected Photosystem II activity.;Leaf morphological differences and structural changes occurring at the thylakoid level during cold hardening of winter rye are not responsible for its increased resistance to photoinhibition. Photoinhibition as monitored with chlorophyll a fluorescence showed different trends and different kinetics compared to CO{dollar}\\sb2{dollar} fixation. CO{dollar}\\sb2{dollar} fixation data showed that regulatory mechanisms also play a role during photoinhibition and subsequent recovery. Therefore, CO{dollar}\\sb2{dollar} fixation should be monitored in intact leaves before the increased resistance of cold hardened winter rye is conclusively proven.
Efficient myoblast expansion for regenerative medicine use (2014)

Cellular therapy using expanded autologous myoblasts is a treatment modality for a variety of diseases. In the present study, we compared the commercial skeletal muscle cell growth medium-2 (SKGM-2) with a medium designed by our group for the expansion of skeletal myoblasts. The use of an in-house medium [DMEM/F12 medium supplemented with EGF, bFGF, HGF, insulin and dexamethasone (DFEFH)] resulted in a greater number of myoblast colonies (>50%) and a 3-, 4- and 9‑fold higher proliferation rate, eventually resulting in a 3-, 7- and 87-fold greater number of cells at the 1st, 2nd and 3rd passage, respectively, compared with the cells grown in SKGM-2 medium. The average CD56 expression level was higher in the myoblasts cultured in DFEFH than in those culturd in SKGM-2 medium. At the 3rd passage, lower expression levels of myostatin and considerably higher expression levels of myogenin were observed in the cells that were grown in DFEFH medium. The results of our study indicated that myoblasts cultured in both medium types displayed fusogenic potential at the 3rd passage. Furthermore, it was shown that cells cultured in DFEFH medium created myotubes with a considerably higher number of nuclei. Additionally, we observed that the fusion potential of the cells markedly decreased with the subsequent passages and that the morphology of the myoblasts differed between the 2 cultured media. Our data demonstrate that culture in the DFEFH medium leads to an approximately 90‑fold greater number of myoblasts, with improved morphology and greater fusion potential, compared with culture in the commercial SKGM-2 medium.
2,2î-Bipyridine Catalyzed Bleaching of Cotton Fibers with Peracetic Acid (1988)

Peracetic acid can be catalyzed to bleach cotton fibers at temperatures as low as 30°C by incorporating 2,2î-bipyridine in the bleach solution. Treatment of the fibers with HCl prior to bleaching reduces bleaching effectiveness by removing trace transition metal ions from the fibers. Sorption of individual ions (Cr +3 Mn +2 , Fe +2 , Fe +3 Co +2 , Ni +2 , Cu +2 , and Zn +2 ) by HCl treated cotton fibers prior to bleaching indicates that the ferrous ion produces the greatest catalytic effect, and it is only effective when the metal ion is in the fiber as opposed to in solution. Ferrous ions in the fibers sorb 2,2î-bipyridine from solution to form the tris-2,2î-bipyridine ferrous ion complex that is associated with the fibers, and it is the trischelate associated with the fibers that catalyzes bleaching. The effects of pH, temperature, and concentrations of 2,2î-bipyridine, sodium lauryl sulfate, and transition metal ions (in the fibers and in solution) on bleaching effectiveness and peracetic acid decomposition have been studied, and a bleaching mechanism is proposed.
The Silicon Nitride Film Formed by ECR-CVD for GaN-Based LED Passivation (2001)

Most GaN-LED epilayers are grown on sapphire, which is a kind of insulating substrate. From the top view, a GaN-based LED has two bonding pads, one for p-type conduction and the other for n-type conduction. These pads would affect the packaging yield because it is probable to touch the p-type material when a conducting wire is bonded to the n-pad. Besides, the reactive ion-etched sidewall is easily contaminated or adsorbed by moisture when exposed to the air. Consequently, a passivation layer is necessary to isolate these conduction paths. In this paper, we used electron cyclotron resonance chemical vapor deposition (ECR-CVD) to form the silicon nitride (SiNx) passivation film at room temperature. The film was patterned by lift-off process and the surface of the whole wafer was covered except the bonding pads. After passivation, no distinguishable variation was found in the statistical data of forward voltage and leakage current, but the illumination intensity was raised by at least 6%. The bonding yield and reliability would be increased much. The change of electrostatic discharge (ESD) characteristics was also investigated.
Superficial Gangrene in Adolescent Diabetes (1944)

Lymphocytes, mainly of the small variety, made up the remainder. A hyperchromic type of anaemia affected the red blood cells, the colour index being 1.4. Haematologically, therefore, the signs were those of monocytic leukaemia. Refer- ence to the literature, however, indicated that these facts alone were not conclusive' evidence in favour of such a diagnosis.
Towards tractable algebras for bags (1993)

Bags, i.e. sets with duplicates, are often used to implement relations in database systems. In this paper we study the expressive power of algebras for manipulating bags. The algebra we present is a simple extension of the nested relation algebra. Our aim is to investigate how the use of bags in the language extends its expressive power, and increases its complexity. We consider two main issues, namely (i) the relationship between the depth of bag nesting and the expressive power, and (ii) the relationship between the algebraic operations, and their complexity and expressive power. We show that the bag algebra is more expressive than the nested relation algebra (at all levels of nesting), and that the difference may be subtle. We establish a hierarchy based on the structure of algebra expressions. This hierarchy is shown to be highly related to the properties of the powerset operator.
Probe Data-based Identification of Vehicle Behaviors at Intersection (2012)

It is important to know vehicle behaviors on approach of signalized intersection when making traffic control policy.How to identify the vehicle behavior mode accurately is one of the fundamental issues to discuss the next generation traffic control theory based on vehicle infrastructure integration.Based on real-time probe data from vehicle-road experimental platform,the lane change and turning behaviors at intersection were observed and analyzed with the weighted average method at first,and then,a linear programming model was established and solved to deal with the matching error in the identification procedure.Finally,with the case study,it is concluded that with the methods mentioned above,the identification rate of vehicle turning movement behavior at intersection is 100%,and about lane change behavior,the identification error is only 8.33%,which is permitted in decision making of traffic control.
Creep Mechanism of Mg-Nd-Zn-Zr Alloy at Ambient Temperature (2007)

Magnesium alloy's creep stress exponent and creep mechanism at the room temperature were analyzed by TEM. Relationship among strain, stress and creep time was studied. The creep rate of some mechanisms were calculated. The results show that the dislocation mechanism is possible. The deformation mechanism is dislocation slipping on basal plane, and twinning improves creep deformation.
Shakemyth: The Fabrication of Shakespearean Culture (1995)

At the end of Edward Bond's play Bingo, first performed in 1973, William Shakespeare takes an overdose. The play ends with the Bard convulsing on the floor and his daughter, Judith, ransacking his bed for the final version of his will. Bond's Shakespeare is a corrupt businessman who colludes with the system of enclosure which evicts the poor and persecutes the dispossessed. In a scene earlier in the play, he drinks himself unconscious in the presence of his candid and truculent contemporary, Ben Jonson. He is tired: 'Time goes. I'm surprised how old I've got.' In reply to Jonson's questions about the meaning of The Winter's Tale and his present writings, Shakespeare can only respond with negative utterances.KeywordsNational TheatreNegative UtteranceHenry VersusRomantic SympathyIdeological State ApparatusThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
Deadlock-free and collision-free coordination of two robot manipulators (1989)

The authors describe a method for coordinating the trajectories of two robot manipulators so as to avoid collisions between them. It is assumed that the robots' environment is known and that the robots' paths can thus be planned in advance but that there may be significant variations in the execution time of some of the path segments. The goal is to allow the motions of each manipulator to be planned nearly independently and to allow the execution of the path segments to be asynchronous. The coordination is achieved by introducing explicit coordination commands into the path. The key problems in coordinating trajectories are to avoid collisions between the two robots and to avoid deadlock, that is, situations where each manipulator is waiting for the other to proceed.
Quaternary onium hexachloroplatinates: novel hydrosilylation catalysts (1987)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTQuaternary onium hexachloroplatinates: novel hydrosilylation catalystsI. G. Iovel, Y. S. Goldberg, M. V. Shymanska, and E. LukevicsCite this: Organometallics 1987, 6, 7, 1410–1413Publication Date (Print):July 1, 1987Publication History Published online1 May 2002Published inissue 1 July 1987https://pubs.acs.org/doi/10.1021/om00150a007https://doi.org/10.1021/om00150a007research-articleACS PublicationsRequest reuse permissionsArticle Views349Altmetric-Citations38LEARN 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
CARCINOMA OF CERVIX UTERI, TOGETHER WITH SEVEN MONTHS' PREGNANCY (1903)

Previous history good; nine children a t full time; no miscarriages.Patient consulted Dr. Campbell, of Young, New South Wales, early in