gebhart/patrepeval huggingface dataset:
BASE-CATALYZED REARRANGEMENT OF HYDRIDE ION FROM SILICON TO CARBON WITH DISPLACEMENT OF HALIDE ION AT THE MIGRATION TERMINUS (1959)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTBASE-CATALYZED REARRANGEMENT OF HYDRIDE ION FROM SILICON TO CARBON WITH DISPLACEMENT OF HALIDE ION AT THE MIGRATION TERMINUSL. H. Sommer, W. P. Barie Jr., and D. R. WeyenbergCite this: J. Am. Chem. Soc. 1959, 81, 1, 251Publication Date (Print):January 1, 1959Publication History Published online1 May 2002Published inissue 1 January 1959https://pubs.acs.org/doi/10.1021/ja01510a065https://doi.org/10.1021/ja01510a065research-articleACS PublicationsRequest reuse permissionsArticle Views82Altmetric-Citations-LEARN 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
HIGHEFFICIENCYPLANAR FREQUENCY MULTIPLIERAT MILLIMETRE WAVES AND QUASI-OPTICALINVESTIGATIONS FOR (SUB)MILLIMETREAPPLICATIONS (1999)

* LESTUMR CNRSn °6616 - ENSTdeBretagne - BP832 - 29285BRESTCEDEX E-mail: Daniel.Bourreaugenst-bretagne.fr - Tel:332980013 14- Fax:332980013 43 ** lRESTE - LaChantrerie - rueChristian Pauc -BP60601 -44306NANTESCedex 03 Abstract - Thispaperpresents thedesign and measurement of a hybridvaractorfrequency multiplier inthemillimetre waverangeandthefirst investigations ona quasi-optical frequency doubler. Fortheplanar circuit, a multilayer technology was usedforthesynthesis ofthesourceandload impedances ofthevaractor. Theconversion losses are about12dB at62GHz withan outputpowerof 10.8 dBm. The measurement testbenchand results on passive circuits in quasi-optical technology are presented. A quasi-optical doublerhasalsobeen investigated anddesigned andthefirst results are presented.
Arbitrage, Continuous Trading, and Margin Requirements (1987)

This paper studies the impact that margin requirements have on both the existence of arbitrage opportunities and the valuation of call options. In the context of the Black-Scholes economy, margin restrictions are shown to exclude continuous-trading arbitrage opportunities and, with two additional hypotheses, still to allow the Black-Scholes call model to apply. The Black-Scholes economy consists of a continuously traded stock with a price process that follows a geometric Brownian motion and a continuously traded bond with a price process that is deterministic.
The use of 1.5 /spl mu/m infrared light from a cooled scintillator for optical fiber based system (1996)

The scintillation mechanism in scintillators is affected by the operating temperature. Therefore we can control to some extent the scintillation property by controlling the temperature. Recently we developed an optical fiber based radiation measurement system in a nuclear facility. To utilize the full ability of optical fibers, the wavelength of conventional scintillators is too short. Thus we investigated the scintillation property at different temperatures. After a series of experiments, we have found infrared light emission around 1.5 /spl mu/m from a cooled CsI(Tl) scintillator. Although the intensity of this emission is less than 1/10 of the visible light intensity, this wavelength matches the minimum loss in silica optical fibers. It also matches partly the amplification band of the erbium doped fiber amplifier (EDFA). This interesting coincidence might lead us to the possibility of using this material as an /spl psi/infrared scintillator".
Solvent effects in deamination reactions (1986)

Abstract Nitrous acid deaminations of ( S )‐2‐butanamine, (2 R ,3S)‐3‐methyl‐2‐pentanamine ( 8 ), cyclopropananmine ( 17 ) and 4,4‐dimethyl‐2‐adamantanamine ( 30 ) have been studied in water and in a series of carboxylic acids of decreasing polarity (acetic, 3,3‐dimethylbutyric, 2‐ethylhexanoic acid). The stereochemistry of aqueous deaminations varies from predominant inversion to predominant retention, depending upon the structure of the substrate (steric hindrance, neighbouring‐group participation, etc.). In carboxylic acid media, alcohols arise with predominant retention, i.e. by front‐side attack of the “internal” nucleophile (water). Inverting displacement of nitrogen by the “external” nucleophile (carboxylic acid/carboxylate) increases with decreasing polarity of the solvent. Even cyclopropanamine yields cyclopropyl esters (2‐10%) of inverted configuration, as shown with the aid of deuterium labels. Current mechanistic concepts are modified to account for these results.
ChemInform Abstract: PHOTOADDITION VON CARBONSAEUREESTERN AN DIPHENYLACETYLEN (1970)

Abstract Bei der Bestrahlung von Diphenylacetylenlösungen in Benzol in Anwesenheit eines dreifachen Überschusses an Dimethylterephthalat (II), p‐Cyanobenzoesäuremethylester (IV) oder Oxalsäurediäthylester (VI) mit einer Quecksilberhochdrucklampe entstehen die Additionsverbindungen (III), (V) und (VII) in Ausbeuten von 25 ‐ 86%.
Purification and properties of N-benzoyl-L-alanine amidohydrolase from Corynebacterium equi. (1986)

N-Benzoyl-L-alanine amidohydrolase was purified from a cell-free extract of Corynebacterium equi H-7 which was grown in a medium containing hippuric acid as the sole carbon source. The purified enzyme was homogeneous on polyacrylamide gel electrophoresis and SDS-polyacrylamide gel electrophoresis. The molecular weight was 230, 000 and the enzyme consisted of six subunits, identical in molecular weight (approximately 40, 000). The isoelectric point of the enzyme was pH 4.6. The optimum pH of the enzyme reaction was 8.0 and the enzyme was stable from pH 7.0 to 8.0. The enzyme hydrolyzed N-benzoyl-L-alanine, N-benzoylglycine, and N-benzoyl-L-aminobutyric acid. The Km values for these substrates were 4.3mM, 6.7mM, and 4.3mM, respectively. The enzyme was activated by Co2+.
2538 Electrochemical Properties of Polymer Actuators based on Ionic-Liquid Gels Containing Dispersed Carbon Nanotubes (2007)

We have reported a novel low-voltage driven dry polymer actuators based on single-walled carbon nanotube gels (bucky gels) of ionic liquids. The actuator has a bimorph structure composed of polymer-supported bucky gel electrodes and a polymer-supported ionic-gel electrolyte. In order to improve the performance of the actuator, we further explored the preparation method of the bucy-gel electrode and internal ionic liquid species. Herein we report details of improved response of our bucky gel actuator.
Identifying the Ideal Number Q- Components of the Bayesian Principal Component Analysis Model for Missing Daily Precipitation Data Treatment (2018)

The grassroots of the presence of missing precipitation data are due to the malfunction of instruments, error of recording and meteorological extremes. Consequently, an effective imputation algorithm is indeed much needed to provide a high quality complete time series in assessing the risk of occurrence of extreme precipitation tragedy. In order to overcome this issue, this study desired to investigate the effectiveness of various Q-components of the Bayesian Principal Component Analysis model associates with Variational Bayes algorithm (BPCAQ-VB) in missing daily precipitation data treatment, which the ideal number of Q-components is identified by using The Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) algorithm. The effectiveness of BPCAQ-VB algorithm in missing daily precipitation data treatment is evaluated by using four distinct precipitation time series, including two monitoring stations located in inland and coastal regions of Kuantan district, respectively. The analysis results rendered the BPCA5-VB is superior in missing daily precipitation data treatment for the coastal region time series compared to the single imputation algorithms proposed in previous studies. Contrarily, the single imputation algorithm is superior in missing daily precipitation data treatment for an inland region time series rather than the BPCAQ-VB algorithm.
An androgenic gland membrane-anchored gene associated with the crustacean insulin-like androgenic gland hormone (2013)

Crustacean male sexual differentiation is governed by the androgenic gland (AG) and specifically by the secreted insulin-like AG hormone (IAG), thus far identified in several decapod species including the Australian red claw crayfish Cherax quadricarinatus (termed Cq-IAG). While a few insulin-like AG genes have been identified in crustaceans, other AG-specific genes have not been documented until now. In the present study, we describe the recent identification of a non-IAG AG-specific transcript obtained from the C. quadricarinatus AG cDNA library. This transcript, termed C. quadricarinatus membrane-anchored AG-specific factor (Cq-MAG), was fully sequenced and found to encode a putative product of 189 amino acids including a signal anchoring peptide. Expression of a recombinant GFP fusion protein lacking the signal anchor encoding sequence dramatically affected recombinant protein localization pattern. While the expression of the deleterious fusion protein was observed throughout most of the cell, the native GFP::Cq-MAG fusion protein was observed mainly surrounding the periphery of the nucleus, demonstrating an endoplasmic reticulum (ER)-like localization pattern. Moreover, co-expression of the wild-type Cq-MAG (fused to GFP) and the Cq-IAG hormone revealed that these peptides indeed co-localize. This study is the first to report a protein specifically associated with the insulin-like AG hormone in addition to the finding of another AG-specific transcript in crustaceans. Previous knowledge suggests that insulin/insulin-like factor secretion involves tissue-specific transcripts and membrane-anchored proteins. In this regard, Cq-MAG's tissue specificity, anchoring properties and intracellular co-localization with Cq-IAG suggest that it may play a role in the processing and secretion of this insulin-like AG hormone.
Prolonged survival of mice with established intracerebral glioma receiving combined treatment with peroxisome proliferator-activated receptor–γ thiazolidinedione agonists and interleukin-2–secreting syngeneic/allogeneic fibroblasts (2007)

The data indicate the beneficial effects of combination therapy using pioglitazone and immunotherapy in mice harboring intracerebral glioma.
The proton bound association of large multifunctional group molecules: Tartaric acid esters (1992)

Abstract The kinetics fo production of proton‐bound dimers of dimethyl‐ and diisopropyl‐tartrate were analyzed were analyzed by the method of initial slopes. From the pressure dependence of the apparent bimolecular rate constatn, the back‐dissociation rate and radiative stabilization of the intermediate excited collision complex was calculated. The back‐dissociation (10.3 and 2.8 × 10 3 s −1 ) and radiative (8.2 and 7.1 s −1 ) rates are compared to literature values for functionally similar acetone. In contrast to acetone these dimers exhibit a back‐dissociation reaction to regenerate the monomer species. These results can be taken to imply a lower binding energy in these dimers due to steric effects. Competing reactions to form ions of m / z 145 and 235 were also observed for the dimethyl and diisopropyl ester, respectively.
Neonatal hypoxic-ischemic encephalopathy: detection with diffusion-weighted MR imaging. (2000)

Diffusion-weighted imaging, performed with the technical parameters in this study, may have a lower correlation with clinical evidence of HIE than does conventional MR imaging. The sensitivity of diffusion-weighted imaging in detecting neonatal HIE appears to be affected by the pattern of ischemic damage, with a lower sensitivity if the deep gray matter is affected as compared with isolated cerebral cortex involvement.
Fresh Breeze (2003)

It is well-known that multiprocessor systems are vastly more difficult to program than systems that support sequential programming models. In a 1998 paper[11] this author argued that six important principles for supporting modular software construction are often violated by the architectures proposed for multiprocessor computer systems. The Fresh Breeze project concerns the architecture and design of a multiprocessor chip that can achieve superior performance while honoring these six principles.The envisioned multiprocessor chip will incorporate three ideas that are significant departures from mainstream thinking about multiprocessor architecture: (1) Simultaneous multithreading has been shown to have performance advantages relative to contemporary superscalar designs. This advantage can be exploited through use of a programming model that exposes parallelism in the form of multiple threads of computation. (2) The value of a shared address space is widely appreciated. Through the use of 64-bit pointers, the conventional distinction between "memory" and the file system can be abolished. This can provide a superior execution environment in support of program modularity and software reuse, as well as supporting multi-user data protection and security that is consistent with modular software structure. (3) No memory update; cycle-free heap. Data items are created, used, and released, but never modified once created. The allocation, release, and garbage collection of fixed-size chunks of memory will be implemented by efficient hardware mechanisms. A major benefit of this choice is that the multiprocessor cache coherence problem vanishes: any object retrieved from the memory system is immutable. In addition, it is easy to prevent the formation of pointer cycles, simplifying the design of memory management support.
Epitope localization defines the quality of CD8 T-cell responses. (2016)

<p>(<b>A</b>) Representative dot plots of intracellular IFNγ expression at 7 and 180 dpi upon HGIRNASFI peptide stimulation. (<b>B</b>) Grouped means +/- SEM of cells responding to the HGIRNASFI peptide at 7, 14, 28, 60, 90, 120, 180 dpi. (<b>C</b>) Representative dot plots of the surface expression of CD127 and KLRG1 on HGIRNASFI specific CD8 T cells at 7 and 180 dpi with MCMV<sup>WT</sup> or MCMV<sup>M45Cterm</sup>. The staining was used to define the CM (CD127<sup>+</sup>KLRG1<sup>-</sup>) and the EM (CD127<sup>-</sup>KLRG1<sup>+</sup>) subsets. (<b>D, E</b>) Grouped means +/- SEM of the percentage of EM (<b>D</b>) or CM (<b>E</b>) cells in the HGIRNASFI-responding subset at indicated time points p.i‥ The experiment was performed twice, at 5 mice per group in each experiment, and pooled results are shown. Significance on day 180 p.i. was assessed by a Mann—Whitney <i>U</i> test. *p<0.05, ***<i>p</i> < 0.001.</p>
ChemInform Abstract: SELECTIVE REDUCTION OF DIETHYL HOMOPHTHALATE WITH DIISOBUTYLALUMINIUMHYDRIDE (1973)

Abstract Homophthalester (I) liefert mit Diisobutylaluminiumhydrid das Reduktionsprodukt (IIa), das mit Ameisensäureorthoester das gemischte Acetal (IIb) liefert und mit Chromsäure zum Lacton (III) oxidiert wird.
Combined Hydrogen Production and Storage with Subsequent Carbon Crystallization (2006)

We provide evidence of low-temperature hydrogen evolution and possible hydrogen trapping in an anthracite coal derivative, formed via reactive ball milling with cyclohexene. No molecular hydrogen is added to the process. Raman-active molecular hydrogen vibrations are apparent in samples at atmospheric conditions (300 K, 1 bar) for samples prepared 1 year previously and stored in ambient air. Hydrogen evolves slowly at room temperature and is accelerated upon sample heating, with a first increase in hydrogen evolution occurring at approximately 60 degrees C. Subsequent chemical modification leads to the observation of crystalline carbons, including nanocrystalline diamond surrounded by graphene ribbons, other sp2-sp3 transition regions, purely graphitic regions, and a previously unidentified crystalline carbon form surrounded by amorphous carbon. The combined evidence for hydrogen trapping and carbon crystallization suggests hydrogen-induced crystallization of the amorphous carbon materials, as metastable hydrogenated carbons formed via the high-energy milling process rearrange into more thermodynamically stable carbon forms and molecular hydrogen.
Grain boundary sliding associated with low strain rate at 1000 °C in recrystallized ODS ferritic steel (2016)

The high-temperature deformation process of the recrystallized 16CrODS ferritic steel was investigated at 1000 °C for the stress loading perpendicular to the elongated grain structure. The strain rate was varied in the range from 1.0 × 10−2 to 1.0 × 10−5 s−1. At the strain rate over 1.0 × 10−4 s−1, deformation is dominated by the conventional dislocation creep. Decreasing strain rate from 1.0 × 10−4 s−1, grain boundary sliding becomes prominent. Accommodation process for the localized stress induced by grain boundary sliding could be dislocation creep at 1.0 × 10−4 s−1, and by diffusional creep at 1.0 × 10−5 s−1 or less. These were verified through the observation of void formation and localized strain accumulation by KAM map.
Polymerization and processing of organic polymers in a magnetic field (1995)

The use of magnetic fields to affect the structure and properties of polymeric materials remains an area of great promise. Liquid crystalline polymers have been actively studied over the past 20 years for use in high performance structural applications. In particular, highly oriented fibers can exhibit remarkable increases in strength to weight performance compared to conventional materials. For example, the fibers marketed by DuPont under the tradename Kevlar are 20 times stronger than steel on an equivalent weight basis. However, larger bulk parts do not exhibit the same increases in strength due to a lack of orientation of the polymer molecules. Magnetic field processing of polymers remains an attractive solution to this problem.
Les martyrs du Môle (1914)

Klein Henri. Les martyrs du Môle. In: Les Feuillets d'El-Djezaïr, volume 7, 1914. Visites et excursions des années 1912 et 1913. Monographies. Écrits divers. pp. 167-168.
A danish perspective on problem based learning in space education (2006)

This describes the goals of the Student Satellite Program at Aalborg University (AAU), and the means for implementing it, namely a concept called problem based learning, which is the cornerstone in education at AAU. AAU has, within the last decade, chosen to focus strongly on education in space technology, not because the country lacks aerospace engineers, but because space projects require the students to think about systems rather than individual modules, while providing problems that are technically challenging for the students to solve. This combination makes the graduates very attractive for industry in general, and not only for the space industry
GATA2 deficiency: flesh and blood (2014)

In this issue of Blood , Spinner et al and Dickinson et al describe a surprising breadth of clinical and laboratory findings associated with germ-line mutation of the gene encoding the GATA2 transcription factor.[1][1],[2][2]

![Figure][3] 

Protean manifestations of germ-line, heterozygous
Results compared for tricyclic antidepressants as assayed by liquid chromatography and enzyme immunoassay. (1988)

The tricyclic antidepressants amitriptyline, nortriptyline, imipramine, and desipramine in serum of patients taking one of the drugs were quantified in two laboratories by high-performance liquid chromatography (HPLC) and enzyme-multiplied immunoassay (EMIT; Syva). Results for split samples were highly correlated, but EMIT gave higher results in most cases, and the slopes of the correlation lines for each analyte were greater than 1. Detection limits for the two procedures were such that 18% of the EMIT results for the drug(s) were considered negative, as compared with 4% of the HPLC results. Additional assay of desmethyl or hydroxy antidepressant metabolites by HPLC did not explain the higher EMIT results. The relatively high detection limit for EMIT greatly limits its use in therapeutic drug monitoring, where low concentrations of tricyclic antidepressants are as important as high ones for dose adjustment or determination of compliance. Other problems with EMIT measurement of tricyclic antidepressants are discussed.
Experimental Evaluation of the Activities of Some Local Anaesthetics with Particular Reference to a New Derivative : Chloroparidocaine (1961)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTExperimental Evaluation of the Activities of Some Local Anaesthetics with Particular Reference to a New Derivative : ChloroparidocaineB. Taccardi, G. Rapuzzi, and G. FerrariCite this: J. Med. Chem. 1960, 3, 3, 525–531Publication Date (Print):May 1, 1961Publication History Published online1 May 2002Published inissue 1 May 1961https://pubs.acs.org/doi/10.1021/jm50016a010https://doi.org/10.1021/jm50016a010research-articleACS PublicationsRequest reuse permissionsArticle Views48Altmetric-Citations2LEARN 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 options Get e-Alerts
ChemInform Abstract: Crystal Structure Determination of Rb2Cr5F17. (1990)

Abstract Single crystals of the title compound are prepared by annealing a stoichiometric mixture of RbF and CrF 3 at 1000 °C (sealed Pt‐tube, one week).
Selective Nontemplated Adsorption of Organic Molecules on Nanofacets and the Role of Bonding Patterns (2006)

A key element of functionalizing nanocrystals with organic molecules is the nontemplated selective adsorption of different molecules on different facets. Here we report scanning-tunneling-microscopy images of perylene-3,4,9,10-tetracarboxylic-dianhydride and 2,5-dimethyl-N,N'-dicyanoquinonediimine on silver, demonstrating selective adsorption on different facets. We also report first-principles calculations that account for the data and show that bonding, which controls selectivity, occurs via the end atoms, while the molecule's midregion arches away from the substrate. The results are also consistent with data that have been interpreted in terms of bonding via the midregion.
Comparative Study of Intravitreal Bevacizumab (Avastin) versus Ranibizumab (Lucentis) in the Treatment of Neovascular Age-Related Macular Degeneration (2009)

Bevacizumab and ranibizumab treatments resulted in similar gains in visual acuity and reduction in macular thickness, documented each month following injection. Intravitreal bevacizumab appears to be as safe and effective as intravitreal ranibizumab in the treatment of exudative AMD.