gebhart/patrepeval huggingface dataset:
A Solvent-Free Process for Preparing Conductive Elastomers by an In Situ Polymerization of Pyrrole (2002)

A solvent-free method for preparing electrically conductive polyurethane foams and elastomeric films is described. The method consists of impregnation of the oxidant into the foam through the sublimation of iodine, followed by in situ polymerization of pyrrole using pyrrole vapors to obtain a polypyrrole/polyurethane foam composite. Iodine serves as both the oxidant in the oxidative polymerization of pyrrole and the dopant for the resulting polypyrrole by forming a charge-transfer complex with the polymer. The conductivities of the composite foams ranged from 10-1 to 10-7 S/cm depending on the concentration of the oxidant incorporated in the iodine sorption step.
Terahertz filters based on frequency selective surfaces for high-speed terahertz switch (2013)

We design and fabricate two terahertz (THz) filters based on frequency selective surfaces' structures (FSSs) on single crystal sapphire substrate, which show high and low transmissivities to THz electromagnetic waves, respectively. The difference of THz transmissivity between two filters reaches up to 72% at the resonance frequency of 1.35 THz. The THz filtering effect is due to the resonant coupling between THz wave and periodic metallic elements and the filter operating frequency can be tuned systematically by the geometry of FSSs. The good agreement between experiments and finite difference time domain simulation indicates that a high-speed THz switch could be realized for THz active devices based on the FSSs.
Carlos de Grunenbergh e le città ioniche del Teatro geografico antiguo y moderno del Reyno de Sicilia (1686) (2008)

Ritratti di citta Uno dei significati attribuiti al lemma theatro dal Diccionario de Autoridades (1737) riferisce: «Metaphoricamente se llama el lugar, donde alguna cosa esta expuesta a la estimacion o censura universal». Non so se oggi chiameremmo «Atlante» il Teatro geografico, pur riconoscendovi, sebbene parzialmente, «una coleccion de mapas geograficos en un volumen» 1 . Il nostro Teatro geografico di fine secolo XVII non e infatti soltanto un semplice atlante: nasconde in se la consapevolezza di un rapporto progettato nell’intenzione politica di rappresentare, di mostrare una sintesi che, di fatto, deve essere valutata “a distanza”, non puo che essere apprezzata “da lontano”. E su tale «lontananza» si fa grande affidamento. Chi partecipa a una rappresentazione teatrale ha due scelte di campo: o sta sulla scena e incarna la figura di un attore, indossando i costumi di un personaggio, oppure e spettatore di una sintesi scenica che richiede una minima distanza ottica la cui soglia non puo essere oltrepassata, come aveva dimostrato il cono ottico del Teatro Olimpico di Palladio. Giulio Camillo Delminio tra gli anni trenta e i quaranta del secolo XVI aveva chiarito, nel suo L’idea del Teatro, che se si fosse rimasti dentro al bosco non si sarebbe potuto percepirlo nella sua interezza: bisognava allontanarsene e soprattutto guadagnare un’altura da dove cogliere l’«intiero» 2 . Ma questa percezione di interezza percepita dall’alto, altro non e che mera interpretazione delle superfici: e autentica maschera che nasconde gli intrighi, i labirinti molteplici del
Long‐Term Testing in Dynamic Mode of HT‐PEMFC H<sub>3</sub>PO<sub>4</sub>/PBI Celtec‐P Based Membrane Electrode Assemblies for Micro‐CHP Applications (2010)

Abstract High temperature proton exchange membrane fuel cells (HT‐PEMFC) have a promising market in micro‐combined heat and power (μ‐CHP) applications. Operating above 150 °C, they would better cope with return temperatures of typical heating systems than conventional PEMFCs and would allow simplification of system regulations dedicated to failure prevention. Single cell and 500 W e HT‐PEMFC stack integrating Celtec P 1000 MEAs were fed with synthetic reformate and air and successfully operated at 160 °C under accelerated typical annual μ‐CHP profile. The single cell was unaffected by 500 h of current cycling while stop/start cycles induced some voltage loss. After 658 h of cumulated operation, stack performance loss was limited at 7.6%: its electrical efficiency (LHV) decreased from 30.6 to 28.3%. Moreover, four initial stop/start cycles weakly impacted its performance, indicating that selected shutdown/restart protocol is convenient for field application. Conversely, after additional start/stop cycles, degradation rate was increased by stop/start cycling and some specific cells (mostly associated with lower initial OCV) exhibited significantly higher degradation rates. Finally, voltage transient evolution during current step exhibits undershoot which magnitude is strongly depends on cell location in the stack: it increased at stack dead‐end and for cells exhibiting highest degradation rates.
Improved synthesis of alumina-pillared montmorillonite by surfactant modification (1992)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTImproved synthesis of alumina-pillared montmorillonite by surfactant modificationLaurent J. Michot and Thomas J. PinnavaiaCite this: Chem. Mater. 1992, 4, 6, 1433–1437Publication Date (Print):November 1, 1992Publication History Published online1 May 2002Published inissue 1 November 1992https://pubs.acs.org/doi/10.1021/cm00024a054https://doi.org/10.1021/cm00024a054research-articleACS PublicationsRequest reuse permissionsArticle Views284Altmetric-Citations40LEARN 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
25-Hydroxyvitamin D transport in human plasma. Isolation and partial characterization of calcifidiol-binding protein. (1976)

The binding protein for 25-hydroxycholecalciferol (25-OH-D3 or calcifidiol) in human plasma has been purified from Cohn Fraction IV. Following in vitro labeling with 25-OH-[3H]D3, the isolation sequence of procedures included: DEAE-cellulose chromatography; gel filtration on Sephadex G-200; chromatography on DEAE-Sephadex; preparative polyacrylamide gel electrophoresis. These procedures resulted in a calcifidiol-binding protein (Cal-BP) which had been purified approximately 170-fold, and which was homogeneous by physical and immunological criteria. The purified Cal-BP had inter-alpha mobility, a sedimentation constant (S20, w) of 3.46 S, and a molecular weight of approximately 59,000. Sucrose gradient ultracentrifugation of Cal-BP and ligand incubations indicated that there was apparently one binding site for either cholecalciferol, calcifidiol or 1,25-dihydroxycholecalciferol per molecule of human Cal-BP. The protein had highest affinity for calcifidiol, displaying an apparent dissociation constant (Kd) of 6.4 X 10(-8) M for this sterol. Specific anti-human Cal-BP antisera were prepared in rabbits, and produced precipitate lines of identity between Cal-BP and human serum. Specific binding of vitamin D3,25-OH-D3, and 1,25-(OH)2D3 by human serum was completely neutralized after immunoprecipitation of the serum with the gamma globulin fraction of anti-Cal-BP antiserum, indicating a common transport protein for these sterols in human plasma. There was no immunological cross-reactivity between Cal-BP and rat or chicken sera, indicating that the Cal-BP in these three sera are immunologically completely distinct. Purified human Cal-BP and human sera also produced lines of identity with commercial anti-human group-specific component (Gc) antisera in radial immunodiffusion experiments. This finding supports an earlier report of the identity of calciferol/calcifidiol-binding protein and group-specific component in human serum. The Cal-BP content of human serum is approximately 10(-5) M, whereas the calcifidiol content is approximately 10(-7) M. Normally, the dominant moiety of human plasma Cal-BP is the apoprotein.
Design and implementation of HNPG gait characteristics database management system (2012)

In order to strengthen the evaluation and reliability of gait recognition algorithm and accelerate gait recognition technology,in view of the actual application process of unstructured data management and current small sample gait of the short-comings of the database,using object-oriented data management model based on the platform,a open data support platform based gait is designed.Application development and design system solutions are put forward including data standard,data acquisition,data processing and management mode.Practice shows that the data acquisition system standard,sample quantity,gait data of clarity,foundation platform and openness index is better than the same type of database,the system has strong scalability,safety and reliability,and reach the expected goal.
The seismologic service of Chile (1911)

Book Review| March 01, 1911 The seismologic service of Chile J. C. B. J. C. B. Search for other works by this author on: GSW Google Scholar Bulletin of the Seismological Society of America (1911) 1 (1): 25–26. https://doi.org/10.1785/BSSA0010010025B Article history first online: 03 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Tools Icon Tools Get Permissions Search Site Citation J. C. B.; The seismologic service of Chile. Bulletin of the Seismological Society of America 1911;; 1 (1): 25–26. doi: https://doi.org/10.1785/BSSA0010010025B Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search nav search search input Search input auto suggest search filter All ContentBy SocietyBulletin of the Seismological Society of America Search Advanced Search This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not currently have access to this article.
Mosaic based representations of video sequences and their applications (2002)

Recently, there has been a growing interest in the use of mosaic images to represent the information contained in video sequences. The paper systematically investigates how to go beyond thinking of the mosaic simply as a visualization device, but rather as a basis for efficient representation of video sequences. We describe two different types of mosaics called the static and the dynamic mosaic that are suitable for different needs and scenarios. We discuss a series of extensions to these basic mosaics to provide representations at multiple spatial and temporal resolutions and to handle 3D scene information. We describe techniques for the basic elements of the mosaic construction process, namely alignment, integration, and residual analysis. We describe several applications of mosaic representations including video compression, enhancement, enhanced visualization, and other applications in video indexing, search, and manipulation.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Breaking Down the Reactivity of λ<sup>3</sup>-Iodanes: The Impact of Structure and Bonding on Competing Reaction Mechanisms (2014)

The functionalization of arenes via diaryliodonium salts has gained considerable attention in synthesis, as these compounds react under mild conditions. Mechanistic studies have shown that the formation of corresponding λ(3)-iodane intermediates takes a key role, as they determine the course and selectivity of the reaction. Bridged diaryliodonium salts, featuring a heterocyclic moiety involving the iodine atom, were shown to exhibit a distinctly different reactivity, leading to different products. These products are not just the result of reductive elimination reactions but may also arise via radical mechanisms. Our quantum chemical calculations reveal that the λ(3)-iodane intermediate is also the "gateway" for reactions that are observed only for strained bridged systems. At the same time, we find a remarkable affinity of the hypervalent region to planarity for all reaction mechanisms. This also explains the correlation between the size of the bridge connecting the aryl groups and the reaction products observed. Furthermore, the energetics of these competing reactions are examined by analysis of the mechanisms. Finally, using model compounds, some of the basic features governing the reactivity of λ(3)-iodanes are discussed.
Epidemiological study on porcine circovirus type 2 (PCV2) infection in the European wild boar (<i>Sus scrofa</i>) (2004)

Porcine circovirus type 2 (PCV2) is considered as the causative agent of postweaning multisystemic wasting syndrome (PMWS) in domestic pigs, where the virus is ubiquitous as evidenced by serological surveys. We present the results of the first nationwide sero-survey on the presence of PCV2 antibodies in European wild boars, and report the first PMWS case in a wild boar from Spain. Sera from 656 hunter harvested wild boars from 45 different geographical sites and 22 additional imported animals were analysed by means of an immunoperoxidase monolayer assay (IPMA). We also examined the tissues from 55 healthy and one diseased wild boars for the presence of PCV2 nucleic acid and PMWS lesions by in situ hybridisation and histopathology, respectively. Additionally, abundance estimates of wild boars and field interviews were carried out on 30 sampling sites. The prevalence of medium to high PCV2 serological titres among the examined wild boars was 47.89 1.9%. Seropositive wild boars appeared in all but one of the geographical regions analysed. Seroprevalence and titre of PCV2 antibodies were closely related to the management of the wild boar populations. Wild boars from intensively managed, farm-like populations had higher prevalence than wild boars living in more natural situations. The effect of wild boar abundance and management on PCV2 antibody prevalence was further evidenced by the high correlation existing between the relative abundance estimates of animals and the percentage of wild boars with medium to high levels of PCV2 antibodies. PCV2 nucleic acid was detected in the tissues of three wild boars. One of these was diagnosed as PMWS. The results, in addition to information on piglet mortalities, suggest a potential role of PMWS in piglet mortality in intensively managed wild boar populations.
ChemInform Abstract: Baeyer‐Villiger Reaction in the Solid State. (1989)

Abstract The oxidation of the ketones (I) and (III) with m‐chloroperbenzoic acid, yielding the carboxylates (II) or (IV) and (V), is investigated in the solid state or in solution.
Toroviruses: replication, evolution and comparison with other members of the coronavirus-like superfamily (1993)

General introduction. Based on their morphological and physicochemical characteristics, the Toroviridae were initially proposed to constitute a new family of enveloped RNA viruses (Horzinek & Weiss, 1984; Horzinek et al., 1987). However, recent analysis of the genetic information and replication strategy of the prototype Berne virus (BEV) (Snijder et al., 1988, 1990a, c) has revealed that toroviruses are not unique: they are clearly related to the Coronaviridae and, more distantly, to the arteriviruses (den Boon et al., 1991b). This information has led to the reclassification of the toroviruses as a new genus in the coronavirus family (Pringle, 1992) and to the introduction of the unofficial term ‘coronavirus-like superfamily’ to indicate the evolutionary ties between the three virus groups mentioned above. The history of torovirus research not only illustrates the taxonomic consequences present-day molecular analysis may have; the BEV genome has also turned out to be a showcase for the two driving forces in RNA virus evolution: divergence from a common ancestor and RNA recombination (Snijder et al., 1991a).
Reserve Determination with Stochastic Optimal Power Flow (2009)

This paper presents a methodology to determine the energy and reserve schedules with consideration of power system uncertainties. Unlike contingency analysis, the requirements of operating reserves based on the stochastic optimal power flow are not predefined. Instead, the reserve requirement is generated to meet both the system reliability and economic efficiency under system uncertainties. The stochastic optimal power flow with reserve determination is proposed and studied with different types of uncertainties, including variation of system demand, outages of transmission lines and generation units, and intermittent generation. This study emphasizes the impact of the intermittent generation on the energy schedule and reserve determination, and so provides a new methodology for addressing emerging system issues with the emergence of renewable energy. Exploring a variety of cases reveals the differences between contingency analysis and risk-based motivations for reserve.
Insulin action, effects on gene expression and regulation, and glucose transport (1994)

Section I: Molecular and Cellular Aspects of Insulin Action. 1. Mutations in the Insulin Receptor Gene in Patients with Genetic Syndromes of Extreme Insulin Resistance. 2. The Insulin Receptor: Structure/Function Relationship. 3. Identification of Diabetes-Related Genes by Subtraction Cloning. 4. The Insulin Receptor-Related. 5. Structure of Insulin Receptor Substrate 1 and Role in Insulin Signaling as a Docking Protein for SH2 Domain-Containing Proteins. 6. Phosphatidylinositol 3'-Kinase and Insulin Action. 7. The Role of p21ras in Insulin Signaling. 8. MAP Kinase Pathways and Insulin Action. 9. Raf-1 Kinase. 10. Role of Phosphoprotein Phosphatase 1 (PP-1) in the Mechanism of Insulin Action. 11. The Role (or Lack Thereof) of Protein Kinase C in Insulin Action. 12. Regulation of the Phosphoenolpyruvate Carboxykinase Gene by Insulin. 13. Regulation of Gene 33 Expression by Insulin. 14. Distinct Elements in the PEPCK and Amylase Genes Mediate the Diabetes and Carbohydrate Response: Potential Role of IRE-ABP in Mediating the Dietary Response. 15. Molecular Aspects of Insulin-Regulated Hepatic Growth. 16. Endocytosis and Cellular Processing of Insulin- Receptor Complexes: Mechanisms and Biological Functions. 17. Chiroinositol Deficiency and Insulin Resistance: A Clinical Perspective. 18. Regulation of c-fos Gene Expression by Insulin in Neurons. 19. Molecular Comparison of the Insulin and IGF-I Receptors. 20. Insulin-Like Growth Factor-I and Insulin- Like Growth Factor Binding Proteins in Diabetes. 21. Structure-Function Properties of Insulin/IGF-I Hybrid Receptors. Section II: Molecular Mechanisms of the Insulin-Regulatable Glucose Transport. 22. GLUT-4 Glucose Transporters and Insulin Action in Humans: Regulation at the Level of Gene Expression and Cellular Trafficking. 23. Mutant GLUT-4 and the Role of GLUT-4 Phosphorylation in Controlling Glucose Transport. 24. GLUT-4 Phosphorylation: Effects of Phosphorylation on Glucose Transport and Intrinsic Activity. 25. Glucose Transporters of Muscle Cells in Culture: Developmental Regulation and Modulation by Lipoic Acid an Anti-Hyperglycemic Agent. 26. Expression of the GLUT-4 Glucose Transporter in Diabetes. Index.
Drug information specialists (2006)

Journal Article Drug information specialists Get access K. Alicia Brand, Pharm.D., K. Alicia Brand, Pharm.D. Drug Information Coordinator Clinical Information Center, MedAssets Supply Chain Systems 3221 McKelvey Road, Suite 301 Bridgeton, MO 63044 abrand@medassets.com Search for other works by this author on: Oxford Academic Google Scholar Michelle L. Kraus, Pharm.D. Michelle L. Kraus, Pharm.D. Director Clinical Information Center, MedAssets Supply Chain Systems 3221 McKelvey Road, Suite 301 Bridgeton, MO 63044 Search for other works by this author on: Oxford Academic Google Scholar American Journal of Health-System Pharmacy, Volume 63, Issue 8, 15 April 2006, Pages 712–714, https://doi.org/10.2146/ajhp050242 Published: 15 April 2006
Subintimal distal anchor technique for "balloon-uncrossable" chronic total occlusions. (2013)

Percutaneous coronary intervention (PCI) of chronic total occlusion (CTO) presents unique challenges and potential complications. The two most common failure modes are inability to cross the lesion with a guidewire and failure to cross the CTO with a balloon after successful guidewire crossing ("balloon-uncrossable" CTO). We present a creative solution to assist crossing of balloon-uncrossable CTOs that entails use of a balloon placed over a wire that has been advanced though the subintimal space to "anchor" the guidewire that has crossed through the CTO true lumen enabling lesion crossing with a balloon.
Research on tourist satisfaction and dissatisfaction: Overcoming the limitations of a positivist and quantitative approach (2001)

The study of satisfaction and dissatisfaction on long-haul tours leads to a methodological appraisal regarding the strengths of a phenomenological, qualitative research approach and, in particular, the technique of participant observation. This is contrasted with the potential limitations of a positivist quantitative approach centred on customer service questionnaires (CSQs). The participant observation is illustrated with reference to a case study of tourists on a long-haul tour to Malaysia and Singapore from Britain.
Protein engineering of a disulfide bond in a .beta./.alpha.-barrel protein (1992)

A disulfide bond has been introduced in the beta/alpha-barrel enzyme N-(5'-phosphoribosyl)anthranilate isomerase from Saccharomyces cerevisiae. The design of this disulfide bond was based on a model structure of this enzyme, built from the high-resolution crystal structure of the N-(5'-phosphoribosyl)anthranilate isomerase domain from Escherichia coli. The disulfide cross-link is spontaneously formed in vitro between residues 27 and 212, located in the structurally adjacent alpha-helices 1 and 8 of the outer helical ring of the beta/alpha-barrel. It creates a loop of 184 residues that account for 83% of the sequence of this enzyme, thus forming a quasi circular protein. The cross-linked mutant enzyme displays wild-type steady-state kinetic parameters. Measurements of the equilibrium constant for the reduction of this disulfide bond by 1,4-dithiothreitol show that its bond strength is comparable to that of other engineered protein disulfide bonds. The oxidized, cross-linked N-(5'-phosphoribosyl)anthranilate isomerase mutant is about 1.0 kcal/mol more stable than the wild-type enzyme, as estimated from its equilibrium unfolding transitions by guanidine hydrochloride.
Synthesis and X-Ray Analysis of 1-Benzyl-6-chlorouracil (1990)

1-Benzyl-6-chlorouracil (3) was prepared by benzylation of 6-chlorouracil (2) which was obtained by alkaline hydrolysis of 2,4,6-trichloropyrimidine (1)