gebhart/patrepeval huggingface dataset:
Extracting Social Power Relationships from Natural Language (2011)

Sociolinguists have long argued that social context influences language use in all manner of ways, resulting in lects 1. This paper explores a text classification problem we will call lect modeling, an example of what has been termed computational sociolinguistics. In particular, we use machine learning techniques to identify social power relationships between members of a social network, based purely on the content of their interpersonal communication. We rely on statistical methods, as opposed to language-specific engineering, to extract features which represent vocabulary and grammar usage indicative of social power lect. We then apply support vector machines to model the social power lects representing superior-subordinate communication in the Enron email corpus. Our results validate the treatment of lect modeling as a text classification problem – albeit a hard one – and constitute a case for future research in computational sociolinguistics. 1
Seeding Specificity in Amyloid Growth Induced by Heterologous Fibrils (2004)

Over residues 15-36, which comprise the H-bonded core of the amyloid fibrils it forms, the Alzheimer's disease plaque peptide amyloid beta (Abeta) possesses a very similar sequence to that of another short, amyloidogenic peptide, islet amyloid polypeptide (IAPP). Using elongation rates to quantify seeding efficiency, we inquired into the relationship between primary sequence similarity and seeding efficiency between Abeta-(1-40) and amyloid fibrils produced from IAPP as well as other proteins. In both a solution phase and a microtiter plate elongation assay, IAPP fibrils are poor seeds for Abeta-(1-40) elongation, exhibiting weight-normalized efficiencies of only 1-2% compared with Abeta-(1-40) fibrils. Amyloid fibrils of peptides with sequences completely unrelated to Abeta also exhibit poor to negligible seeding ability for Abeta elongation. Fibrils from a number of point mutants of Abeta-(1-40) exhibit intermediate seeding abilities for wild-type Abeta elongation, with differing efficiencies depending on whether or not the mutation is in the amyloid core region. The results suggest that amyloid fibrils from different proteins exhibit structural differences that control seeding efficiencies. Preliminary results also suggest that identical sequences can grow into different conformations of amyloid fibrils as detected by seeding efficiencies. The results have a number of implications for amyloid structure and biology.
Metal nanoparticles as efficient catalysts for organic reactions (2009)

Abstract Pd(0) nanoparticles have been demonstrated to be very efficient catalysts for C–C bond-forming reactions. These include coupling of vicinal -diiodoalkenes and acrylic esters and nitriles leading to the stereoselective synthesis of 2-alkene-4-yn-esters and nitriles, allylation of active methylene compounds by allyl acetate, and Hiyama cross-coupling of aryliodides with arylsilanes. Cu(0) nanoparticles catalyze aryl-sulfur bond formation, accomplishing the synthesis of functionalized aryl sulfides and aryl- and vinyl dithiocarbamates. Cu nanoparticles have also been used for the chemoselective reduction of aromatic nitro compounds.
Semiconducting-polymer-based position-sensitive detectors (2004)

We demonstrate the utility of the organic semiconducting polymers as active media for light-sensitive position-sensitive detectors (PSDs). The characteristics of these PSDs include reasonable linearity and photoresponsivity over a large range of distance, photovoltaic mode of operation, and other advantages such as nonrigid substrates and absence of any other transporting-conducting coating layer. These devices utilize the formation of Al-polymer Schottky-type photoactive interface as a common backcontact. We demonstrate results for poly(3-hexylthiophene)-based PSDs of different interelectrode spacings where the photovoltaic signals as a function of incident-beam position are linear over the entire range.
Microsoft SQL Server 2000 DBA Survival Guide with Cdrom (2001)

From the Publisher:
Microsoft SQL Server 2000 DBA Survival Guide is organized into several parts that comprise the various jobs and tasks the DBA performs. Each chapter is presented with the goal of providing knowledge and know-how to Database Administrators of a SQL Server database. The chapters also offer real world insight and experience by passing on tips, tricks, and suggestions based on what the authors have learned the hard way. The book also takes time to provide checklists and examples for various SQL Server DBA tasks. The book also provide insight into the tasks that make up a DBA's job including discussions of topics such as the creation of naming standards and conventions which are essential for efficient administration.
Animal virus receptors (1999)

The term 'receptor' is generally accepted as the cell-surface component that participates in virus binding and facilitates subsequent viral infection. Recent advances in technology have permitted the identification of several virus receptors, increasing our understanding of the significance of this initial virus-cell and virus-host interaction. Virus binding was previously considered to involve simple recognition and attachment to a single cell surface molecule by virus attachment proteins. The classical concept of these as single entities that participate in a lock-and-key-type process has been superseded by new data indicating that binding can be a multistep process, often involving different virus-attachment proteins and more than one host-cell receptor.
Cell‐substratum adhesion strength as a determinant of hepatocyte aggregate morphology (1997)

Cultured hepatocytes typically form multicellular aggregates which are either monolayered or spheroidal in morphology. We propose that the aggregate morphology resulting from a particular cell-substratum interaction has a biophysical basis: when cell contractile forces are greater than cell-substratum adhesion forces, spheroidal aggregates form; when cell contractile forces are weaker than cell-substratum adhesion forces, cells remain essentially spread and form monolayered aggregates. We tested this hypothesis by systematically varying the morphology of hepatocellular aggregates formed on substrata coated with a series of different concentrations of Matrigel, and correlating aggregate morphology with the cell-substratum adhesion strength measured in a shear flow detachment assay. Aggregate morphology was binary—spheroidal aggregates formed at low Matrigel concentrations and monolayered aggregates formed at high Matrigel concentrations. Cell-substratum adhesion strength was similarly binary, with low adhesion strengths correlated with spheroidal aggregates and high adhesion strengths correlated with formation of monolayered aggregates. © 1997 John Wiley & Sons, Inc. Biotechnol Bioeng 53: 415–426, 1997.
Side-View Type of Waveguide Flow Cells for Fluorimetry as a Detector for Flow Injection Analysis of Lead (1992)

Several types of cells made of Pyrex® ( n D 20 = 1.474) capillaries were constructed for fluorimetry from the standpoint of waveguiding of the excitation source. Fluorescence intensity detected from a vortex cell is virtually linearly dependent on the refractive index of the solvent containing the fluorophore. This type of cell is applied as the fluorimctric detector for the flow injection analysis of the lead(II) ion. The lead ion was incorporated into a macrocyclic ligand, cryptand 2.2.2, and the resulting compound was ion-paired with eosine (fluorescent dye). This complex ([Pb(cryptand 2.2.2)]eosine) was extracted into chlorobenzene ( n D 20 = 1.5248) and was introduced into the above vortex cell. An Ar + laser operated at 514.5 nm was used as the light source, and the fluorescence of eosine at 600 nm was detected. Two ng/mL of Pb(II) ion was obtained as the detection limit.
Fibroblast Heterogeneity of Signal Transduction Mechanisms to Complement‐C1q. Analyses of Calcium Mobilization, Inositol Phosphate Accumulation, and Protein Kinases‐C Redistribution (1998)

Fibroblasts of healthy and granulation gingiva are phenotypically heterogeneous with regard to binding C1q collagen-like (cC1qR) or C1q globular-heads (gC1qR) regions, respectively. Here, isolated fibroblast subsets, expressing either the cC1qR or the gC1qR phenotype, were stimulated with C1q, and assessed for changes in cytosolic free calcium [Ca2+]i, accumulation of inositol trisphosphate (IP3), and redistribution of Ca2+-dependent protein kinases-C (cPKCs) from cytosol to membranes. Changes in [Ca2+]i were determined using Indo-1 fluorescence in combination with adhering cell analysis and sorting (ACAS) cytometry. Accumulation of IP3 was quantified using a competitive radioreceptor binding assay. Redistribution of cPKCs was evaluated by immunoblotting with antibodies to PKCalpha/betaI-betaII/gamma. Subsets manifested different fluctuations in [Ca2+]i levels 20 seconds after C1q-stimulation in the presence of millimolar concentrations of external calcium. Whereas cC1qR fibroblasts responded with a 38% over baseline [Ca2+]i increase which was sustained for 20 to 30 minutes, gC1qR fibroblasts responded with a higher (264% over baseline) and more rapid (2 to 3 minutes) transient. Likewise, subsets exhibited different kinetics of IP3 accumulation. Whereas cC1qR fibroblasts responded with an IP3 increase of 32 +/- 3 pmol/10(4) cells over baseline after 5 seconds stimulation, gC1qR fibroblasts responded after 15 to 20 seconds with a lower increase (13 +/- 0.8 IP3 pmol/10(4) cells over baseline). Subsets differed in cPKCs redistribution which peaked in gC1qR-membranes 30 seconds after stimulation and remained sustained between 10 and 30 minutes. No cPKC redistribution was detectable in stimulated cC1qR-cells. We conclude that fibroblasts are heterogeneous in phosphoinositide-Ca2+ signaling and cPKC redistribution to C1q, and suggest that these differences may affect activities of normal and granulation gingiva.
Reactions of nitrate esters in acetic acid containing sulfuric acid (1968)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTReactions of nitrate esters in acetic acid containing sulfuric acidSidney David Ross, E. Robert Coburn, and Manuel FinkelsteinCite this: J. Org. Chem. 1968, 33, 2, 585–587Publication Date (Print):February 1, 1968Publication History Published online1 May 2002Published inissue 1 February 1968https://pubs.acs.org/doi/10.1021/jo01266a025https://doi.org/10.1021/jo01266a025research-articleACS PublicationsRequest reuse permissionsArticle Views166Altmetric-Citations11LEARN 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
Constitutionalism in Kenya (2002)

A brief look at the constitutional reform process in Kenya - the main players, their strategies and roles, as well as the prospects and obstacles to constitution-making.
Protein quality of high-yielding rice and its improvement by supplementation of lysine and threonine. (1990)

The protein quality of hybridized high-grain yielding varieties, between japonica and indiea type rices, Chugoku 91, Nanjing ll and Milyang 30, was examined. The contents of protein and amino acids of Nanjing 1 1, especially lysine, were highest among these three varieties. The food intake, weight gain and feed efficiency of rats given a Nanjing ll diet also showed the highest values amongthese three varieties. The supplementation of lysine and threonine to a Milyang 30 diet brought about increases of ll, 44 and 30 %in the food intake, weight gain and feed efficiency, together with 20 and 25%increases in the biological value and net protein utilization, as compared with those in rats that received the Milyang 30 alone as the protein source. These results suggested that it is possible to select a variety for concomitant increases in grain yield and protein with good quality, and showed that the supplementation of lysine and threonine to this variety can bring about economically significant improvement of the biological quality.
ElectRelease – electrically disbonding epoxy adhesive (2002)

ElectRelease was originally developed to temporarily bond monitoring instruments to supersonic fighter aircraft permitting subsequent disbonding without surface damage or marking. ElectRelease is an electrically disbonding epoxy adhesive. Article describes the development of the adhesive and its properties and applications.
New Method for Estimating Receiver Orientation in Marine CSEM Data (2009)

We present a new method to estimate receiver orientation angle from electric and magnetic data measured during a controlled source electromagnetic (CSEM) survey. By combining field responses at a receiver for pairs of equidistant source-receiver offsets,
Measurement of the absolute neutron efficiency for a NE-102A scintillator in the energy range 2--7 MeV using the associated particle technique (1991)

This paper describes the absolute neutron detection efliciency calibration of a NE- 102A1 scintillator detector in the energy range 2-7 MeV. The neutrons were obtained by means of the D(d, n) 3He reaction, and the neutron beam characteristics were determined using the asso- ciated particle technique (APT). The efliciency measurements are compared with the calculations from a Monte Carlo code (SAN REMO). RESUMEN. Este articulo presenta la calibracion absoluta a neutrones de un detector NE-l02A en el intervalo de energia 2-7 Mev. El haz de neutrones monoenergetico se obtuvo usando la reaccion D(d, n) 3He, y las caracteristicas del mismo fueron determinadas usando la tecnica de la particula asociada (APT). Las medidas de eficiencia se comparan con las obtenidas mediante el calculo de un programa Monte CarIo (SAN REMO).
Runtime verification and monitoring of embedded systems (2007)

Ensuring the correctness of software applications is a difficult task. The area of runtime verification, which combines the approaches of formal verification and testing, offers a practical but limited solution that can help in finding many errors in software. Runtime verification relies upon tools for monitoring software execution. There are particular difficulties with regard to monitoring embedded systems. The concerns for arranging non-intrusive monitoring of embedded systems in a way that is suitable for use in runtime verification methods are considered here. A number of existing runtime verification tools are referenced, highlighting their requirement for monitoring solutions. Established and emerging approaches for the monitoring of software execution using execution monitors are reviewed, with an emphasis on the approaches that are best suited for use with embedded systems. A suggested solution for non-intrusive monitoring of embedded systems is presented. The conclusions summarise the possibilities for arranging non-intrusive monitoring of embedded systems, and the potential for runtime verification to utilise such monitoring approaches.
Inhibition of Inducible Nitric Oxide Synthase Expression by an Acetonic Extract from<i>Feijoa sellowiana</i>Berg. Fruits (2007)

Feijoa sellowiana Berg. fruits and especially the acetonic extract have been shown to possess biological activities, although the responsible compounds have never been identified. The present study was designed to evaluate the anti-inflammatory activity of an acetonic extract from F. sellowiana Berg. fruits on the nitric oxide (NO) pathway, which plays an important role in inflammation. To this aim the J774 cell line, which expresses inducible nitric oxide synthase (iNOS) following stimulation with lipopolysaccharide (LPS), has been utilized, and the effects of this extract and its fractions on NO production, iNOS protein expression, and signal pathways involved in its regulation have been evaluated. This study demonstrates that at least some part of the anti-inflammatory activity of the acetonic extract is due to the suppression of NO production by flavone and stearic acid. The mechanism of this inhibition seems to be related to an action on the expression of the enzyme iNOS through the attenuation of nuclear factor kappaB (NF-kappaB) and/or mitogen-activated protein kinase (MAPK) activation.
A burst GFSK-modem for wireless LAN systems (2002)

In this paper, we present a GFSK modem for use in spread spectrum wireless LAN systems. The proposed digital GFSK modem includes open loop automatic frequency control (AFC) to capture burst data completely. The transmission rate is 1 Mbps. It uses a frequency discriminator for detection and an A/D converter for digital processing. We explain the configuration and the operation of the GFSK modem and show the experimental BER and AFC performance results. The AFC's performance was evaluated for frequency offsets in both static and Rayleigh fading environments. We found that our demodulator with AFC synchronized within 8 symbols when the frequency shift was more than /spl plusmn/240 kHz. A digital GFSK modem circuit can be fabricated as a digital integrated circuit using only 3,000 gates.
QUINONES BY THE PEROXIDE OXIDATION OF AROMATIC COMPOUNDS (1940)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTQUINONES BY THE PEROXIDE OXIDATION OF AROMATIC COMPOUNDSRICHARD T. ARNOLD and RAYMOND LARSONCite this: J. Org. Chem. 1940, 05, 3, 250–252Publication Date (Print):May 1, 1940Publication History Published online1 May 2002Published inissue 1 May 1940https://pubs.acs.org/doi/10.1021/jo01209a006https://doi.org/10.1021/jo01209a006research-articleACS PublicationsRequest reuse permissionsArticle Views412Altmetric-Citations32LEARN 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
Myocardial tomography using technetium-99m-tetrofosmin to evaluate coronary artery disease. (1994)

Stress tetrofosmin perfusion tomography is a valuable method to detect coronary artery disease and to assess tissue viability with accuracy similar to that of stress 201Tl tomography.
Colorimetric Characterization of Digital Cameras Preserving Hue Planes (2005)

In this paper we present a colorimetric characterization method for digital color cameras, based on hue plane and white point preservation. The present implementation of the method incorporates a series of 3 by 3 matrices, each responsible for the transformation of a subset of camera RGB-values to colorimetric XYZ-values. The method is compared to a choice of three other common characterization methods based on least squares fitting. These other methods are an unconstrained 3 by 3 matrix, a white point preserving 3 by 3 matrix and a second order polynomial.The methods have been evaluated on real camera signals coming from an Imacon Ixpress professional digital CCD camera, under flash light. The Gretag MacBeth Color Checker and the Color Checker DC charts have been used as test set and training set (respectively). The method is evaluated in combination with a noise susceptibility estimation of the training set samples and a preliminary subdivision of the hue domain, that reduces the amount of test samples needed in the characterization. The noise estimation is based on a geometric analysis in camera chromaticity space.
Transcriptional regulation of bioluminesence genes from <i>Vibrio fischeri</i> (1995)

The phenomenon of cell-density-dependent control of gene expression, called autoinduction, has long been a subject of interest and investigation in bioluminescent marine bacteria. It is now becoming clear that many other bacteria, including animal and plant pathogens, use an autoinduction mechanism to regulate a variety of functions. Cell-density-dependent gene expression provides an excellent example of multicellular behaviour in the prokaryotic kingdom where a single cell is able to communicate and sense when a minimal population unit, a 'quorum' of bacteria, is achieved in order for certain behaviour of the population to be performed efficiently. Regulation of bacterial bioluminescence has been studied for many years and represents the best model system for understanding the mechanism of cell-density-dependent gene expression. This review will focus on transcriptional regulation of the Vibrio fischeri luminescence genes emphasizing the role of the transcriptional activator LuxR and possible autoinduction mechanisms that occur in E. coli. Alternative views and opinions regarding the molecular details of the autoinduction mechanism will be discussed.
Cation-dependent mannose 6-phosphate receptor contains two internalization signals in its cytoplasmic domain. (1990)

The signals required for rapid internalization of the bovine cation-dependent mannose 6-phosphate receptor have been localized to two distinct regions of the 67-amino acid cytoplasmic domain. One signal includes phenylalanine 13 and phenylalanine 18, while the other involves tyrosine 45. The former signal is more potent than the latter, but both must be present for the maximal rate of receptor internalization. Each signal shares similarities with the known internalization signals of other recycling receptors.