gebhart/patrepeval huggingface dataset:
New digital calibrator with impressed current pulses for partial discharge measurements (2002)

In this paper, a new digital calibrator for partial discharge (PD) measurements is presented. This generator works with impress well specified charges. Thus, in difference to conventional calibrators used until now, the generated calibration pulses show only minimal dependencies both from the interior electronic realisation of the calibrator as well as from the measuring object. Because of the digital storage, the pulse shapes are adaptable to nearly every measuring system. A comparison of real PD pulses injected in a transformer coil with the pulse shapes of both the new calibrator and of conventional generators injected in the same coil shows, that the signals from the new generator are much more similar to the real PD pulses. Thus, with the new generator pulses with nearly any shape and charge adjustable in wide range can be injected in high voltage devices.
Synthesis of Pyrrolnitrin and Related Halogenated Phenylpyrroles (2009)

A general approach to halogenated arylpyrroles, including the antifungal natural product pyrrolnitrin, is described using newly synthesized halogenated pyrroles and 2,6-disubstituted nitrobenzenes or 2,6-disubstituted anilines.
Listeria monocytogenes exists in at least three evolutionary lines: evidence from flagellin, invasive associated protein and listeriolysin O genes (1995)

Regions of the genes encoding flagellin (flaA), the invasive associated protein (iap), listeriolysin O (hly) and 23S rRNA were sequenced for a range of Listeria monocytogenes isolates of different origin and serotypes. Several nucleotide sequence variations were found in the flaA, iap and hly genes. No differences were found for the rRNA genes, but our approach does not exclude the existence of differences between single copies of these genes. Based on the sequence differences, the L. monocytogenes strains can be divided into three distinct sequence types. Further, the presence of only a small number of sequence differences within each group indicates a strong degree of conservation within the groups. There was a complete correspondence among the groups of strains formed according to the analysis of the flaA, iap and hly genes, and the grouping correlates with serotype, pulsed field gel electrophoretic and multilocus enzyme electrophoretic data. Analysis of the region encoding the threonine-asparagine repeat units in the iap gene revealed some striking features. Sequence type 1 strains were found to have 16-17 repeats, sequence type 2 strains had 16-20 repeats whereas the two sequence type 3 strains analysed had only 11 repeats. Furthermore, within a 19 bp segment there was a 37% difference between the sequences of type 1 and 2 strains and that segment was absent in type 3 strains. Within the threonine-asparagine repeat region the nucleotide differences gave rise to four amino acid changes; however, all were changes among the three amino acids present in the repeat structure indicating a strong selective pressure on the composition of this region.
Manipulating Nanoscale Light Fields with the Asymmetric Bowtie Nano-Colorsorter (2009)

We present a class of devices called Asymmetric Bowtie nano-Colorsorters. These devices are specifically engineered to not only capture and confine optical fields, but also to spectrally filter and steer them while maintaining nanoscale field distributions. We show that spectral properties and localized spatial mode distributions can be readily tuned by controlled asymmetry. Nano-Colorsorters can control light's spatial and spectral distributions at the nanoscale and thus significantly impact applications ranging from broadband light harvesting to ultrafast wavelength-selective photodetection.
Regional Hemodynamics in 1-Day-Delayed Rodent Island Flaps (1994)

We have studied the recovery of microvascular function in ischemic epigastric skin flaps by characterizing the regional hemodynamics in the axial and random portions of double- and single-pedicle island skin flaps in the rat. Blood flows were measured with radiolabeled microspheres 1 day after bipedicle flaps were elevated and at 4 hr, 72 hr, and 1 week after ligation of one of the pedicles. These hemodynamic measurements were correlated with assessments of angiogenesis and skin necrosis performed by lectin histochemistry and histopathology. Twenty-four hours after the skin flap elevation, the mean blood flow was 0.26 ml.min-1.g-1. After the ligation of one pedicle, the blood flow in the axial portion of the skin flap was unchanged at 4 hr (0.22 ml.min-1.g-1), declined insignificantly at 72 hr (0.15 ml.min-1.g-1), and remained normal at 1 week. In the random portion of the skin flap very little collateral blood flow was present at 4 hr (0.06 ml.min-1.g-1) and 72 hr (0.09 ml.min-1.g-1). Blood flow in the random skin flap returned to normal by 1 week (0.27 ml.min-1.g-1). Reelevation of the skin flap at 1 week caused an insignificant decline (10%) in total blood flow to the skin flap. Skin necrosis was detected histologically at 72 hr only in the lateral portion of the random skin flap, where blood flow was less than 0.03 ml.min-1.g-1. Increased areas of lectin binding to vascular endothelium were seen in the subdermal layers of the skin flap by 1 week, presumably due to angiogenesis.(ABSTRACT TRUNCATED AT 250 WORDS)
ORing loss data for square law detectors followed by an ORing device and an accumulator (1982)

A mathematical model is developed to compute the ORing loss for square law detectors followed by an ORing device and an accumulator. The ORing loss is computed for a deterministic signal in Gaussian noise for a detection probability of 0.5 and false alarm probabilities of 10−2, 10−3, 10−4, and 10−6. The ORing loss is computed as a function of the number of channels ORed and the number of samples in the accumulator. It is concluded that the ORing loss increases with an increase in the false alarm probability and with an increase in the number of channels ORed.
NIWI 2000: issues and opportunities. (2001)

The Nurse in Washington Internship (NIWI) is a four-day annual program sponsored by the National Federation of Specialty Nursing Organizations (NFSNO). Aside from presenting a dynamic educational experience, NIWI enables nurses to actively participate in the legislative process by spending a day on Capitol Hill. The 2000 NIWI focused on several issues of importance to nurses and nursing practice. This article discusses those issues.
Substrate Stiffness Adjustable PDMS Device/array For Understanding Its Effect On Cell Growth, Differentiation And Migration (2011)

The mechanical properties of the cellular environment play an important role in the functioning of the cell. Cells attach to the extracellular matrix or other surrounding cells, thus sensing their mechanical properties and tune their own internal mechanical properties accordingly. A number of in vitro studies have been performed to study various cellular mechanical phenomena, but most of them employ a very stiff substrate such as glass or plastic that does not encompass the physiologically relevant range. Also, for tissues of the nervous system, the relationship between the substrate stiffness and the cellular behavior is less understood. In this study, we report the fabrication of a novel device having a cell growing substrate with adjustable elastic moduli ranging from 20kPa to 2.2MPa and systematically study the effects of substrate elasticity on cell behavior. The substrate can be further tuned to obtain a wider range of moduli for the intended applications. Also, the substrate has a thickness of 50 µm which is suitable for monitoring the cells at high magnifications. To study the effects of the varying stiffness on cell behavior, mouse neural stem cells, rat embryo derived cortical neurons, and human glioblastoma multiforme cells were cultured on these devices and monitored. We observed a significant difference in the outgrowth, differentiation, and migration of these cells based on the stiffness of the substrates, indicating that cells respond differently to substrate stiffness. For NSCs, it was seen that there was an increase in the proliferation and differentiation of these cells into astrocytes with increase in the substrate stiffness. Cortical neurons displayed increased outgrowth with stiffer substrates whereas for GBM too, migration of the cell from their clusters was seen to increase with the underlying substrate stiffness. In order to further improve the efficiency of the device and study two or more factors that could affect cell behavior simultaneously, a PDMS array has been fabricated having substrates of different stiffness, assembled on a 48X65 mm glass slide and coated with different ECM proteins. Human gliobastoma multiforme cells were cultured on the array to examine the effects of both the stiffness and the underlying ECM protein at the same time and it was observed that substrate stiffness strongly controlled cell migration for majority of the coated proteins. In conclusion, the device/array can be easily tuned for making substrates of varying stiffness over the entire physiologically relevant range on a single glass slide to mimic the in vivo substrate of the cells and to test cellular behavior on the differing substrates.
Partial purification and properties of a microsomal lysophosphatidic acid acyltransferase from oilseed rape (1989)

Conference Article| August 01 1989 Partial purification and properties of a microsomal lysophosphatidic acid acyltransferase from oilseed rape EIRA WYN EDWARDS; EIRA WYN EDWARDS 1Oilseeds Research Group, Department of Biological Sciences, University of Durham DH1 3LE, U.K. Search for other works by this author on: This Site PubMed Google Scholar DENIS J. MURPHY DENIS J. MURPHY 1Oilseeds Research Group, Department of Biological Sciences, University of Durham DH1 3LE, U.K. Search for other works by this author on: This Site PubMed Google Scholar Biochem Soc Trans (1989) 17 (4): 684–685. https://doi.org/10.1042/bst0170684 Article history Received: November 24 1988 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Facebook Twitter LinkedIn MailTo Cite Icon Cite Get Permissions Citation EIRA WYN EDWARDS, DENIS J. MURPHY; Partial purification and properties of a microsomal lysophosphatidic acid acyltransferase from oilseed rape. Biochem Soc Trans 1 August 1989; 17 (4): 684–685. doi: https://doi.org/10.1042/bst0170684 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 ContentAll JournalsBiochemical Society Transactions Search Advanced Search Keywords: LPA, AT, acyl-CoA: lysophosphatidic acid acyltransferase, PEG, polyethylene glycol This content is only available as a PDF. © 1989 Biochemical Society1989 Article PDF first page preview Close Modal You do not currently have access to this content.
Integrated Proteomic Analysis of Human Cancer Cells and Plasma from Tumor Bearing Mice for Ovarian Cancer Biomarker Discovery (2009)

Integrated proteomic analysis of cancer mouse models and human cancer cell populations provides an effective approach to identify potential circulating protein biomarkers.
Ordered arrays of polymeric nanopores by using inverse nanostructured PTFE surfaces (2012)

We present a simple, efficient, and high-throughput methodology for the fabrication of ordered nanoporous polymeric surfaces with areas in the range of cm(2). The procedure is based on a two-stage replication of a master nanostructured pattern. The process starts with the preparation of an ordered array of poly(tetrafluoroethylene) (PTFE) free-standing nanopillars by wetting self-ordered porous anodic aluminum oxide templates with molten PTFE. The nanopillars are 120 nm in diameter and approximately 350 nm long, while the array extends over cm(2). The PTFE nanostructuring process induces surface hydrocarbonation of the nanopillars, as revealed by confocal Raman microscopy/spectroscopy, which enhances the wettability of the originally hydrophobic material and facilitates its subsequent use as an inverse pattern. Thus, the PTFE nanostructure is then used as a negative master for the fabrication of macroscopic hexagonal arrays of nanopores composed of biocompatible poly(vinylalcohol). In this particular case, the nanopores are 130-140 nm in diameter and the interpore distance is around 430 nm. Features of such characteristic dimensions are known to be easily recognized by living cells. Moreover, the inverse mold is not destroyed in the pore array demolding process and can be reused for further pore array fabrication. Therefore, the developed method allows the high-throughput production of cm(2)-scale biocompatible nanoporous surfaces that could be interesting as two-dimensional scaffolds for tissue repair or wound healing. Moreover, our approach can be extrapolated to the fabrication of almost any polymer and biopolymer ordered pore array.
A novel method for the measurement of acoustic speed (1990)

Traditional methods for measuring acoustic speed require knowledge of either the specimen thickness or the distances between the transducers and the specimen. In general, the accuracy in measuring these quantities determines the accuracy of the experimental technique for measuring speed. This problem is particularly acute in measuring sound speed in biological specimens. A new method for measuring acoustic speed of materials, which eliminates the need for determining these quantities, has been developed. The technique, which necessitates the use of only one transducer, requires measurement of four times of flight of a sound pulse and the knowledge of the speed of sound in a reference fluid medium in which the specimen is placed. Ultrasonic speed in stainless steel and Plexiglas was measured using this method to verify its validity. Results on measurements on porcine liver, myocardium, and soft fat are also reported.
Construction and characterization of a Yersinia enterocolitica O:8 high-temperature requirement (htrA) isogenic mutant (1996)

The high-temperature requirement (HtrA) family of stress response proteins are induced by different environmental stress conditions in a variety of bacteria and have been shown to contribute to the pathogenicity of some of these species. In this study, the htrA gene from Yersinia enterocolitica O:8 was amplified, cloned, and sequenced. Analysis of the deduced amino acid sequence predicted that the putative HtrA homolog contains a serine protease active site and a catalytic triad characteristic of trypsin-like serine proteases, structural features characteristic of previously described HtrA proteins. In order to evaluate the biological functions of Y. enterocolitica HtrA, an isogenic mutant was constructed by a reverse-genetics PCR-based approach. Characterization of the mutant provided evidence supporting a stress response function for the Y. enterocolitica htrA gene product. In contrast to the parent strain, the mutant showed increased sensitivity to killing by H2O2, O2- and temperature stress (50 degrees C). The mutant was avirulent in the murine yersiniosis injection model and offered partial protection to mice challenged with the parent strain. Further studies with the Y. enterocolitica htrA mutant should increase our knowledge of the host-pathogen interactions which occur during Yersinia infections.
Electro-Spark Deposited Coatings for Replacement of Chrome Electroplating (2005)

Abstract : Electro-spark deposited (ESD) coating processes were investigated for line-of-sight (LOS) and non-line-of-sight (NLOS) applications under this Strategic Environmental Research and Development Program Task PP-1147. Apparatus necessary for NLOS ESD applications were developed by Pacific Northwest National Laboratories. Fatigue debits due to application of ESD coatings on reduced section specimens were investigated. A follow-on Environmental Science and Technology Certification Program task resulted from this work and ESD has now been used and is now available for use at Anniston Army Depot, but so far only for LOS applications.
SiGe differential transimpedance amplifier with 50 GHz bandwidth (2003)

In this paper, we demonstrate a fully differential transimpedance amplifier (TIA) with 49 dB-ohm transimpedance, greater than 50 GHz bandwidth, and input-referred current noise less than 30pA//spl radic/(Hz).
Reassessments of Park Jung-Hee Administration's Diplomacy towards Non-aligned Nations: Focusing on 1973-1976 UN General Assembly (2021)

The purpose of this study is to shed new light on the inter-Korean diplomatic war in the UN with the nominal end of inter-Korean detente since the 6.23 declaration. Changes in the landscape of the UN with U.S-China detente and non-aligned movement offered favorable conditions for North Korea to raise its voice in international society. Instead of revealing its offensiveness, North Korea carried out a peace offensive strategy by improving its relations with non-aligned nations and raising issues of UNCURK, withdraw of USFK and peace treaty to UN general assembly. In response, the Park Jung-hee administration made a full commitment and diplomatic efforts to deter North Korea s attempt to get the upper hand in the UN. Inter-Korean diplomatic war has been escalated since the 28th UN general assembly and culminated in the 30th assembly in 1975 with North Korea s joining the NAM(Non-Aligned Movement). However, continuous diplomatic efforts of the Park Jung-hee governments to extend its relations with non-aligned nations and strengthen its alliances with the U.S. and other neighboring countries have successfully deterred diplomatic challenges posed by North Korea. Furthermore, it became an asset for South Korea to continue carrying out Nothern politics in the 1980s. As the stark reality that Korean issues are inextricably linked to the international order still linger today, assessments of diplomatic war between North and South within the UN give new insights in designing a roadmap to peaceful unification.
Emotion controllable speech synthesis using emotion-unlabeled dataset with the assistance of cross-domain speech emotion recognition (2020)

Neural text-to-speech (TTS) approaches generally require a huge number of high quality speech data, which makes it difficult to obtain such a dataset with extra emotion labels. In this paper, we propose a novel approach for emotional TTS synthesis on a TTS dataset without emotion labels. Specifically, our proposed method consists of a cross-domain speech emotion recognition (SER) model and an emotional TTS model. Firstly, we train the cross-domain SER model on both SER and TTS datasets. Then, we use emotion labels on the TTS dataset predicted by the trained SER model to build an auxiliary SER task and jointly train it with the TTS model. Experimental results show that our proposed method can generate speech with the specified emotional expressiveness and nearly no hindering on the speech quality.
Pipelines with internal buffers (1978)

Concurrent or overlapped processing of more than one task is a common technique used in many computer architectures to increase the throughput. A pipeline is one such form consisting of a set of hardware segments which can be operated in an overlapped fashion. The existing and many proposed pipelines assume that a task must flow synchronously, without wait or preemption, from segment to segment for its execution. In this paper we propose a pipeline model in which priority buffers are provided at every segment to control the flow of tasks. Several different priority implementations are analyzed assuming periodic arrivals of tasks. The characteristics studied are, queue size, wait time and throughput. It is shown that the theoretical maximum throughput of a pipeline is attainable with the use of internal buffers. Moreover, it is shown that a substantial degree of freedom in scheduling of tasks is achieved by these methods.
A 36-kilodalton tumor-derived factor with myeloid immunomodulatory activity. (1993)

The conditioned medium from the epidermal carcinoma cell line A431 is shown to inhibit the growth of three human myeloid leukemic cell lines. We have purified to homogeneity from this conditioned medium a 36-kDa protein, as measured by sodium dodecyl sulfate-polyacrylamide gel electrophoresis, which inhibits [3H]thymidine incorporation into the DNA and induces cell surface expression of CD11b, the alpha chain of the adhesion receptor MAC-1, on the human promyelocytic leukemic cell line HL-60. This factor was purified by sequential anion exchange, hydrophobic interaction, and gel permeation chromatography. Amino acid sequence analysis of two tryptic fragments of the purified material showed greater than 95% homology with sequences 179-194 and 319-328 of the M chain of human L-lactate dehydrogenase. Although the tetrameric L-lactate dehydrogenase alone exhibits no activities associated with the purified 36-kDa protein, brief acid treatment which has been shown to yield predominantly monomeric lactate dehydrogenase-M1 results in about 50% of the maximal antiproliferative activity of that induced by this factor. The role of soluble factors of tumor origin in modulating myeloid function as part of an immunosurveillance network is discussed.
Group Reputation, Anonymous Matching, and External Monitoring in a Model of Corruption (2010)

We explore what group reputation is and model its formation and evolution. Based solely on group signals, we define a player’s group reputation as the belief that others have about the characteristics of the group the player belongs to. A model of group reputation of civil servants with anonymous matching and external monitoring is constructed to characterize the strategic behavior of potential bribers and civil servants, the corresponding levels of corruption, possible anti-corruption policies, and the effects of these policies. Our results indicate that as there are two types of corruption behavior of civil servants: accepting bribes and dereliction of duty, anti-corruption should work along both lines. JEL classification: C73, D72, D83
Electrospray ionization of porphyrins using a quadrupole ion trap for mass analysis (1991)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectrospray ionization of porphyrins using a quadrupole ion trap for mass analysisGary J. Van Berkel, Scott A. McLuckey, and Gary L. GlishCite this: Anal. Chem. 1991, 63, 11, 1098–1109Publication Date (Print):June 1, 1991Publication History Published online1 May 2002Published inissue 1 June 1991https://pubs.acs.org/doi/10.1021/ac00011a009https://doi.org/10.1021/ac00011a009research-articleACS PublicationsRequest reuse permissionsArticle Views899Altmetric-Citations140LEARN 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