gebhart/patrepeval huggingface dataset:
Out-of-band electronic gain clamping for a variable gain and output power EDFA with low dynamic gain tilt (2002)

In conclusion, the Er-doped fibre amplifier (EDFA) configuration presented allows variable gain or output power with minimal dynamic gain tilt. The use of an out-of-band probe laser and electronic feedback makes efficient use of the pump power while allowing fine control and adjustment of the EDFA gain but without sacrificing any of the EDFA transmission bandwidth.
Phase modulation in horizontal metal-insulator-silicon-insulator-metal plasmonic waveguides (2013)

An extremely compact Si phase modulator is proposed and validated, which relies on effective modulation of the real part of modal index of horizontal metal-insulator-Si-insulator-metal plasmonic waveguides by a voltage applied between the metal cover and the Si core. Proof-of-concept devices are fabricated on silicon-on-insulator substrates using standard complementary metal-oxide-semiconductor technology using copper as the metal and thermal silicon dioxide as the insulator. A modulator with a 1-μm-long phase shifter inserted in an asymmetric Si Mach-Zehnder interferometer exhibits 9-dB extinction ratio under a 6-V/10-kHz voltage swing. Numerical simulations suggest that high speed and low driving voltage could be achieved by shortening the distance between the Si core and the n(+)-contact and by using a high-κ dielectric as the insulator, respectively.
An epitope shared by the hemagglutinins of H1, H2, H5, and H6 subtypes of influenza A virus. (1999)

The membrane-inserted hemagglutinin (HA) is the most variable protein of influenza viruses. Here we describe the characterization of a shared epitope in the HA of influenza A virus H1, H2, and H5 subtypes which were completely neutralized by a monoclonal antibody (MAb), directed against this epitope. This MAb (C179) also efficiently precipitated the HAs of these viruses. In addition, MAb C179 did not neutralize H6 subtype strains despite complete amino acid homology of the epitope regions. Furthermore, only the non-glycosylated form of the HA of one of the H6 subtype strains could be precipitated by the MAb. The conformational epitope may be masked by glycosylation, although it could not be excluded that differences in the primary amino acid sequence may cause the decreased accessibility of the epitope in H6 subtype strains.
MANAGEMENT OF EYES WITH BOTH IDIOPATHIC MACULAR HOLE AND CHOROIDAL NEOVASCULARIZATION (2001)

Choroidal neovascularization can occur in association with a macular hole. In eyes with an atypical-appearing macular hole, FA should be obtained to detect CNV. Excision of the CNV can be done safely in conjunction with macular hole surgery. Final visual acuity may be limited by cumulative retinal and retinal pigment epithelium damage, especially in eyes with underlying macular disease.
Gated communities: apoplastic and symplastic signals converge at plasmodesmata to control cell fates (2013)

Due to their rigid cell walls, plant cells can only communicate with each other either by symplastic transport of diverse non-cell autonomous signalling molecules via plasmodesmata (PDs) or by endo- and exocytosis of signalling molecules via the extracellular apoplastic space. PDs are plasma membrane-lined channels spanning the cell wall between neighbouring cells, allowing the exchange of molecules by symplastic movement through them. This review focuses on developmental decisions that are coordinated by short- and long-distance communication of cells via PDs. We propose a model combining both apoplastic and symplastic signalling events via secreted ligands and their PD-localized receptor kinases which gate the symplastic transport of information molecules through PDs. Cell communities can thus coordinate cell-fate decisions non-cell autonomously by connecting or disconnecting symplastic subdomains. Here we concentrate on the establishment of such subdomains in the plant's primary meristems that serve to maintain long-lasting stem cell populations in the shoot and root apical meristems, and discuss how apoplastic signalling via transport of information molecules through PDs is integrated with symplastic feedback signalling events.
Rigsite Ions Monitoring System for Drilling Fluids (1993)

Abstract Chemical composition is a critical factor determining the performance of water-based drilling fluids. During drilling, the circulating fluid undergoes chemical changes due to additions of mud products at surface, interactions with drilled formations and losses of fluid in discharges and on drilled cuttings. Chemical changes due to interactions with drilled formations may degrade the performance of the drilling fluid. Rigsite tools to monitor chemical composition as well as functional properties are required for optimum maintenance of a fluid specification during drilling. A rigsite system to monitor and control the ionic composition of water-based drilling fluids is presented. The system consists of (i) a measurement component which provides frequent determinations of the ionic composition of the aqueous phase of the fluid during drilling and (ii) an interpretation component which includes software for calculation of filtrate density and water activity, an advisor tool for designing fluid treatments and a data storage and processing package for constructing chemical logs during drilling. The Measurement component has two units; a cross-flow filtration unit for rapid preparation of filtrate from representative samples of the fluid entering and exiting the wellbore during drilling and an ion chromatography unit for rapid and accurate analysis of filtrate composition. The ionic compositions of filtrates prepared using the cross-flow filtration unit and a standard API static filtration apparatus are compared. Further laboratory and pilot-scale tests involving controlled additions of inorganic salts to simple water-based drilling fluids simulate chemical changes in fluid composition and provide data with which to assess measurement accuracy and precision. The use of the Interpretation component for calculating water activity and as an advisor tool in designing treatments to control fluid composition is described. Results from field case studies emphasise the importance of chemical monitoring in an optimum drilling fluids engineering service. Correlations between the chemical composition and functional properties of water-based drilling fluids are discussed with particular reference to the effect of divalent cations on the efficiency of water-soluble polymers.
<title>Encoding of sign language image sequences at very low rate</title> (1990)

Sign Language is a better language used by the hearing impaired. This report offers a means of visual communication over a very—low bandwidth communication network (i.e. telephone lines) of which the purpose is to supply a visual telecommunication among the deaf community. We develop a system which consists of the edge detection, the binarization, the vectorization, the inter—frame correspondence, the component trajectory finding, and hybrid encoding. This system is able to transmit a sequence of images of the sign language at higher resolution and lower transmission rate.
Aligning Magnetic Quadrupole Lenses by the ``Grove Effect'' (1970)

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 H. W. P. M. Boreas, L. C. J. Baghuis, J. W. Broer; Aligning Magnetic Quadrupole Lenses by the ``Grove Effect''. Rev Sci Instrum 1 March 1970; 41 (3): 466–467. https://doi.org/10.1063/1.1684547 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 ContentAIP Publishing PortfolioReview of Scientific Instruments Search Advanced Search |Citation Search
Side Chain Independent Recognition of Aminoacyl Adenylates by the Hint1 Transcription Suppressor (2012)

Human Hint1 suppresses specific gene transcription by interacting with the transcription factor MITF in mast cells. Hint1 activity is connected to lysyl-tRNA synthetase (LysRS), a member of the universal aminoacyl tRNA synthetase family that catalyzes specific aminoacylation of their cognate tRNAs, through an aminoacyl adenylate (aa-AMP) intermediate. During immune activation, LysRS produces a side-product diadenosine tetraphosphate (Ap(4)A) from the condensation of Lys-AMP with ATP. The pleiotropic signaling molecule Ap(4)A then binds Hint1 to promote activation of MITF-target gene transcription. Earlier work showed that Hint1 can also bind and hydrolyze Lys-AMP, possibly to constrain Ap(4)A production. Because Ap(4)A can result from condensation of other aa-AMP's with ATP, the specificity of the Hint1 aa-AMP-hydrolysis activity is of interest. Here we show that Hint1 has broad specificity for adenylate hydrolysis, whose structural basis we revealed through high-resolution structures of Hint1 in complex with three different aa-AMP analogues. Hint1 recognizes only the common main chain of the aminoacyl moiety, and has no contact with the aa side chain. The α-amino group is anchored by a cation-pi interaction with Trp123 at the C-terminus of Hint1. These results reveal the structural basis for the remarkable adenylate surveillance activity of Hint1, to potentially control Ap(4)A levels in the cell.
The effect of UPW quality on photolithography defect (2009)

Photolithography resist process consists of priming, resist coating, post-apply bake, exposure, post-exposure bake develop, and post bake; advanced RETs and immersion photolithography has more critical resist process steps. Materials used in the resist process require the utmost in cleanliness, especially coating & develop process. In photolithography, De-Ionized Water (DIW) or Ultra Pure Water (UPW) is used during resist developing process as the pre-wet and rinsing material. UPW is supplied by a centralized auto supply system in a semiconductor fabrication; the UPW is controlled for temperature, pH, resistivity, TOC, ions, and etc. State of the art semiconductor design continues to shrink; defect control becomes essential for high yields in semiconductor fabrication. In this paper, effect of UPW quality on resist process defect is revealed. Low resistivity DIW used in resist developing process generates residue defects, which created killing block etch defect after the subsequent etching process. Different measurements for DIW quality are demonstrated; water pH, conductivity, and Total Organic Carbon (TOC) in this case reflected the quality issue of UPW. Detail study on the residue defect and the cause-and-effect with UPW's quality is shown and discussed; the hypothesis is explained with experimental results. High quality UPW is required to eliminate the residue defect, hence minimal defective wafer is obtained. Additionally, resist developing process optimization to improve process robustness is also important.
Experimental Bidirectional Subscriber Loop Transmission System (1982)

This paper describes a complete hardware implementation of an experimental two-wire digital subscriber loop transmission system using balanced pairs of wires. It is based on the time division burst mode transmission scheme (ping-pong), and provides two information channels, 64 kbits/s and 8 kbits/s, and a signaling channel both ways. The burst cycle is 2 ms and line transmission rate is 192 kbits/s. The salient feature of the system is that it is equipped with a powerful bridged tap equalizer which has the capability to compensate a large fraction of existing two-wire subscriber loops in Japan. It is realized by a fifth-order recursive filter using analog tapped delay lines, and a modified zero forcing algorithm is adopted for the adaptation of the tap coefficients. The experimental results showed that the combination of the <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">\sqrt{f}</tex> AGC and the bridged tap equalizer enables the digital transmission up to 4 km on the 0.4 mm φ subscriber line with three bridged taps each of 400 m length.
Segmental Blood Flow and Hemodynamic State of Lymphedematous and Nonlymphedematous Arms (2011)

Both arterial and venous components may be altered in the lymphedema-affected arms when compared to healthy normal arms and contralateral arms in the breast cancer survivors.
TAP expression reduces IL‐10 expressing tumor infiltrating lymphocytes and restores immunosurveillance against melanoma (2007)

Many immune therapeutic strategies are under development for melanoma to treat metastatic disease and prevent disease reoccurrence. However, human melanoma cells are often deficient in antigen processing and this appears to play a role in their expansion and escape from immunosurveillance. For example, expression of the transporters associated with antigen processing (TAP1 and TAP2) is down-regulated in the mouse melanoma cell line B16F10. This results in a lack of tumor-associated antigen processing, low surface expression of MHC Class I molecules and low immunogenicity. We observe that restoration of TAP1 expression by transfection resurrects the processing and presentation of viral antigens, and the melanoma-associated antigen, TRP-2. Immunization with irradiated B16F10/rTAP1 transfected cells generates CTLs that are capable of killing B16F10/rTAP1 transfected targets and B16F10 targets deficient in TAP1. Furthermore, B16F10/rTAP1 transfectants grow at a significantly slower rate in mice than B16F10 cells. In an experimental model that closely recapitulates the clinical situation, treatment of B16F10 tumors in mice with a vaccinia virus vector expressing TAP1 also significantly decreases tumor growth in vivo. Furthermore, tumors treated with vaccinia TAP1 had significantly reduced numbers of immunosuppressive, CD3(+)/IL-10 positive, tumor infiltrating lymphocytes. Therefore, TAP1 expression restores both antigen presentation and immunogenicity in B16F10 melanoma cells and concomitantly reduces immunosuppressive IL-10 production at the local tumor site, thereby increasing immunosurveillance mechanisms against tumors.
Pax3 cooperates with Ldb1 to direct local chromosome architecture during myogenic lineage specification (2019)

Chromatin looping allows enhancer-bound regulatory factors to influence transcription. Large domains, referred to as topologically associated domains, participate in genome organization. However, the mechanisms underlining interactions within these domains, which control gene expression, are not fully understood. Here we report that activation of embryonic myogenesis is associated with establishment of long-range chromatin interactions centered on Pax3-bound loci. Using mass spectrometry and genomic studies, we identify the ubiquitously expressed LIM-domain binding protein 1 (Ldb1) as the mediator of looping interactions at a subset of Pax3 binding sites. Ldb1 is recruited to Pax3-bound elements independently of CTCF-Cohesin, and is necessary for efficient deposition of H3K4me1 at these sites and chromatin looping. When Ldb1 is deleted in Pax3-expressing cells in vivo, specification of migratory myogenic progenitors is severely impaired. These results highlight Ldb1 requirement for Pax3 myogenic activity and demonstrate how transcription factors can promote formation of sub-topologically associated domain interactions involved in lineage specification.
Heterocycles. 8. Synthesis of oxaflozane (1980)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHeterocycles. 8. Synthesis of oxaflozanePhilip M. Weintraub, Donald R. Meyer, and Charles E. AimanCite this: J. Org. Chem. 1980, 45, 24, 4989–4990Publication Date (Print):November 1, 1980Publication History Published online1 May 2002Published inissue 1 November 1980https://pubs.acs.org/doi/10.1021/jo01312a037https://doi.org/10.1021/jo01312a037research-articleACS PublicationsRequest reuse permissionsArticle Views240Altmetric-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
In Vitro Fertilization and Embryo Transfer (1985)

It does not happen too often that one has the opportunity to review two books on the same topic by the same team of editors published in the same year, but this is the case here. I recently had had the opportunity to review another book on in vitro fertilization edited by Drs Wood and Trounson (<i>JAMA</i>1984;252:3189). One may wonder why the same editors would produce two texts within the same year on the same topic. An easy conclusion could be that the publication glut has finally also been reached in in vitro fertilization. While this may be the case, this second volume by Trounson and Wood is by no means repetitive. The first book presented the Australian view, of in vitro fertilization, which appropriately deserved an individual volume because of Australia's forefront position. The here-reviewed text represents a more worldwide look at the topic of in vitro fertilization.
Small unilamellar liposomes as a membrane model for cell inactivation by cold atmospheric plasma treatment (2016)

International audience
3‐C geophone orientation and wave modes polarization (2001)

PreviousNext No AccessSEG Technical Program Expanded Abstracts 20013‐C geophone orientation and wave modes polarizationAuthors: Saul E. GuevaraRobert R. StewartSaul E. GuevaraEcopetrol, Colombia / University of Calgary, Canada and Robert R. StewartUniversity of Calgary, Canadahttps://doi.org/10.1190/1.1816754 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InReddit Permalink: https://doi.org/10.1190/1.1816754FiguresReferencesRelatedDetailsCited byFracture prediction based on walkaround 3D3C vertical seismic profiling data: A case study from the Tarim Basin in ChinaYuyong Yang, Jun Lu, Haiying Li, Qiaomu Qi, and Huailai Zhou6 May 2022 | GEOPHYSICS, Vol. 87, No. 4Two methods for determining geophone orientations from VSP dataXiaoxian Zeng and George A. McMechan12 July 2006 | GEOPHYSICS, Vol. 71, No. 4 SEG Technical Program Expanded Abstracts 2001 ISSN (print):1052-3812 ISSN (online):1949-4645 Copyright: 2001 Pages: 2135 publication data© 2001 Copyright © 2001 Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 03 Jan 2005 CITATION INFORMATION Saul E. Guevara and Robert R. Stewart, (2001), "3‐C geophone orientation and wave modes polarization," SEG Technical Program Expanded Abstracts : 799-801. https://doi.org/10.1190/1.1816754 Plain-Language Summary PDF DownloadLoading ...
Thermal-Electric Transient analysis for Metal Line under High Frequency Pulse Direct Current (2019)

Temperature is one of the most sensitive factors for device and interconnects reliability, especially for Electromigration (EM). A 5°C temperature rise in metal line will induce a 30% EM lifetime decrease [1]. In order to achieve good EM lifetime, Root Mean Square of current (Irms) rule was designed to limit interconnects temperature rise induced by self-heating. Peak current (Ipeak) rule was also designed to prevent sudden temperature rise caused by instantaneous high current. Previous study reported [2] a high frequency pulse current (PDC) resulted in lower joule heating (JH) compared to an equivalent steady state condition. However, the effect of very high frequency (1GHz~1THz) with various duty ratios is still unclear. In this paper, both experimental measurement and finite element method (FEM) simulation approach were used to investigate the impact of temperature rise due to JH by high frequency PDC with various duty ratios. Special thermal test macros using 64nm pitch double patterning LELE technology have been implemented to study frequency and duty ratio effects on JH. Metal width effect was investigated as well. A waveform generator measurement unit was used to measure the resistance profile under different frequency waves. Temperature change was estimated using the temperature coefficient of resistance (TCR). Finite Element Model (FEM) was built based on process assumption, metal width and via profile which were verified by cross section measurement. The FEM model was validated by experimental data in intermediate frequency range, and then used to study very high frequency situation, which cannot be handled by experiment. It was found that high frequency can suppressed Joule heating in metal line. But it also limited metal line to cooling down when power is off. For very high frequency PDC, peak/bottom temperatures approach constant temperature, which is frequency independent. This constant temperature can be determined from steady state thermal model. Reducing duty ratio can control device turn on time thereby reducing peak and average temperature.
Nitrogen use efficiency. 2. Amino acid metabolism (2007)

Abstract In a previous article, we highlighted the latest developments in the isolation and characterisation of genes involved in the uptake of nitrogen from the soil, which might be used to improve the nitrogen use efficiency (NUE) of crop plants. In this article, we have concentrated on the genes controlling the enzymes of amino acid metabolism that may be involved in transferring nitrogen to the protein in the grain. Evidence is now accumulating from the use of knockout mutants, of the role of individual isoenzymes involved in amino acid metabolism, which are encoded by specific genes that are often members of a multigene family. In addition, a significant number of overexpressing plant lines have been obtained, which have increased activities of cytosol located, glutamine synthetase, asparagine synthetase and alanine aminotransferase that appear to have improved NUE.
INFORMATION-MEASURING ELECTROMECHANICAL TRANSDUCERS FOR ASSESSING THE QUALITY OF THE SURFACE OF FERROMAGNETIC METAL ITEMS BY ULTRASONIC WAVES RAYLEIGH (2017)

Разработаны варианты высокочувствительных электромагнитно-акустических преобразователей для преобразования электрической энергии в ультразвуковую и обратно. Они предназначены для возбуждения и приема в металлоизделиях высокочастотных ультразвуковых импульсов поверхностных волн путем использования магнитных и электромагнитных полей. Преобразователи могут быть применены для обнаружения дефектов изделий как с плоской, так и с криволинейной поверхностью, осуществлять производительный контроль значительных площадей поверхностей (листов, труб большого диаметра, значительного числа производимых изделий и эксплуатируемых объектов). Применение устройств такого типа целесообразно в качестве первичных преобразователей информационно-измерительных систем в электроэнергетике, металлургии, химических производствах, транспорте и других отраслях.