gebhart/patrepeval huggingface dataset:
Alcoholysis of carbon monoxide borane (1968)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAlcoholysis of carbon monoxide boraneLeo J. Malone Jr.Cite this: Inorg. Chem. 1968, 7, 5, 1039–1040Publication Date (Print):May 1, 1968Publication History Published online1 May 2002Published inissue 1 May 1968https://pubs.acs.org/doi/10.1021/ic50063a046https://doi.org/10.1021/ic50063a046research-articleACS PublicationsRequest reuse permissionsArticle Views70Altmetric-Citations6LEARN 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
Triazoles: A New Class of Precursors for the Synthesis of Negatively Charged Carbon Nitride Derivatives (2015)

Carbon nitride polymers were prepared for the first time by the pyrolysis of 3,5-disubstituted-1,2,4-triazole derivatives, namely, 3,5-diamino-1,2,4-triazole [1] and 3-amino-1,2,4-triazole-5-thiol [2], in bulk as well as in LiCl/KCl salt melts. The reaction of [1] and [2] in bulk yields condensed heptazine-based polymers, while in LiCl/KCl eutectics it leads to the formation of well-defined potassium poly(heptazine imides), according to the results of 13C NMR and XPS investigations, whose formation resembles that of emeraldine salts of polyaniline. The density functional calculations supported the structural model suggested for potassium poly(heptazine imide) polymer. Owing to the specific reaction path, the products obtained from triazoles therefore show electronic properties rather different to known carbon nitrides, such as band gap and conduction and valence bands positions. With the degree of crystallinity of the reference materials, triazole-derived carbon nitrides are characterized by almost complete absence of steady photoluminescence, since charge separation and delocalization upon excitation seem to be improved. As a consequence, photocatalysts prepared from [2] outperform classical carbon nitrides in a model dye degradation reaction and mesoporous graphitic carbon nitride in hydrogen evolution reaction under visible light irradiation. On its turn, [1] can be conveniently used as a comonomer in order to prepare carbon nitrides with improved visible light absorption.
Modelling the world with objects (1993)

The Object Oriented Paradigm and its Origins. Object Oriented Development an Economically Useful Style of Development. An Object Oriented Notation. Systems Analysis and the Object Oriented Paradigm Modelling Systems. Approaches to the Development of Object Oriented Solutions. The Syntheses Approach, the Tools and the Models. The Direct Approach to Objects. Modelling Human Activity Systems with the Object Notation. Modelling Knowledge Based Systems with the Object Notation. Object Oriented Implementation Units. Object Oriented Programming Languages. Rapid Prototyping of Objects. Human Factors and an Object Oriented Approach. Object Oriented Databases. Documentation of Objects. Case Tools for Effective Development. Conclusions.
Experimental Infection of Tupaia belangeri (Tree Shrews) with Herpes Simplex Virus Types 1 and 2 (1978)

The susceptibility of Tupaia belangeri (tree shrews, which are primitive prosimian primates) to infection with herpes simplex virus (HSV) and the pathogenesis of HSV in these animals were investigated. Juvenile (28--45 days old) and adult (150 days old) animals were inoculated intravenously, intraperitoneally, or subcutaneously with HSV type 1 or 2 (25--10(5) plaque-forming units per animal). Clinical illness usually appeared in juvenile animals on the second day after inoculation, and the animals died between two and 14 days after inoculation. High titers of infectious HSV were recovered from liver and spleen. The histopathologic examination always showed severe liver changes with numerous necrotic areas. The morphologic events in the liver were designated as herpetic hepatitis. The next most common morphologic findings were encephalitis and fibrosis in the spleen. These results demonstrate the high pathogenicity of HSV types 1 and 2 in juvenile T. belangeri. In contrast, adult animals did not develop acute clinical disease and survived the HSV infection.
HIGHLY SENSITIVE III-V NITRIDE BASED PIEZORESISTIVE MICROCANTILEVER USING EMBEDDED ALGAN/GAN HFET (2012)

In this article, for the first time, a high gauge factor of 3532 is reported using AlGaN/GaN Heterostructure Field Effect Transistor (HFET) embedded GaN piezoresistive microcantilever. In addition, deflection transduction signal from the HFET was used to determine dynamic bending (up to 40 Hz frequency) and AC response of the cantilever, and also reported for the first time.
106. Evidence for the isonitrile and nitrile structures of Hantzsch's aryl syn- and anti-diazocyanides (1944)

H. H. Hodgson and E. Marsden, J. Chem. Soc., 1944, 395 DOI: 10.1039/JR9440000395
Drug latentiation by .gamma.-glutamyl transpeptidase (1982)

The N-gamma-glutamyl derivatives of L-thiazolidine-4-carboxylic acid, 4-aminobutyric acid, 1-aminocyclopentanecarboxylic acid, 2-aminophenol, and p-fluoro-L-phenylalanine (compounds 6, 8, 9, 10, and 12, respectively) were synthesized using the synthon phthaloylglutamic anhydride. Their relative rates of cleavage by the enzyme gamma-glutamyl transpeptidase (gamma-GT) were determined in order to evaluate the possibility for their selective release by this enzyme which is elevated in certain pathological conditions. Compounds 6, 8, and 9 were not readily solvolyzed by gamma-GT, but compounds 10 and 12, as well as the N-gamma-glutamylated derivatives of 3- and 4-aminophenol, were readily cleaved.
Agonist-sensitive calcium pool in the pancreatic acinar cell. I. Permeability properties (1988)

45Ca2+ fluxes and free cytosolic Ca2+ [( Ca2+]i) were used to describe the Ca2+ permeability and Ca2+ reloading of the agonist-sensitive pool at rest, during stimulation, and at termination of stimulation. A sequence of stimulation with carbachol, inhibition with atropine (cycling), and restimulation with cholecystokinin octapeptide (CCK-8) was used to follow Ca2+ reloading. Reloading of the pool required extracellular Ca2+ and was measured as an increased rate and extent of 45Ca2+ uptake into the acini. The 45Ca2+ incorporated into cycled acini could be completely released with CCK-8. The dose-response curves for 45Ca uptake and release were identical to those of the hormonally evoked [Ca2+]i increase. The increased 45Ca2+ uptake during reloading was not due to an expansion of any intracellular pool size but reflects the labeling of the pool to isotopic equilibrium in cycled acini. The rate constant of Ca2+ efflux from the pool of resting cells was approximately 0.67 +/- 0.01/h. With stimulation, the Ca2+ permeability of the pool membrane rapidly increased, resulting in Ca2+ release into the cytosol and an increase in [Ca2+]i. With termination of stimulation, the Ca2+ permeability of the pool membrane rapidly decreased while the pool continued to reload with extracellular Ca2+. Labeling of the pool to isotopic equilibrium allowed determination of the amount of Ca2+ released from the pool, which was 2.94 +/- 0.06 nmol/mg protein. This indicates that total Ca2+ concentration in the pool is in the millimolar range.
Analyzing multiprocessor cache behavior through data reference modeling (1993)

This paper develops a data reference modeling technique to estimate with high accuracy the cache miss ratio in cache-coherent multiproeessors. The technique involves analyzing the dynamic data referencing behavior of parallel algorithms. Data referenee modeling first identifies different types of shared data blocks accessed during the execution of a parallel algorithm, then captures in a few parameters the cache behavior of each shared block as a function of the problem size, number of processors, and cache line size, and finally constructs an analytical expression for each algorithm to estimate the cache miss ratio. Because the number of processors, problem size, and cache line size are included as parameters, the expression for the each miss ratio can be used to predict the performance of systems with different configurations. Six parallel algorithms are studied, and the analytical results compared against previously published simulation results, to establish the confidence level of the data reference modeling technique. It is found that the average prediction error for four out of six algorithms is within five percent and within ten percent for the other two. The paper also derives from the model several results on how cache miss rates scale with system size.
Microwave spectroscopy (1961)

The scope of microwave spectroscopy and its relationship to other branches of spectroscopy are briefly indicated, attention being especially directed to those aspects which are important in the design of spectrometers. The factors determining spectrometer sensitivity are discussed. The basis of molecular modulation is presented with special reference to Stark modulation. A survey is made of the various types of spectrometer and their relative merits are discussed. The application of the method to chemical analysis is considered and indications are given of the directions in which further experimental work is required.
Elevated serum progastrin‐releasing peptide (31–98) in metastatic and androgen‐independent prostate cancer patients* (2002)

The clinical results demonstrated the existence of a regulatory mechanism for GRP, which to date had only been observed in cell lines. These findings suggest that GRP is a growth factor potentially upregulated by androgen but that does not rely principally on androgen modulation. The large overlap in levels of ProGRP among the groups limits the use of this value as a monitoring tool. Measurement of ProGRP, however, does have potential as an independent parameter to evaluate androgen-independent progression and to facilitate a new therapeutic strategy that may compensate for current limitations of diagnosis based on PSA alone.
Lead titanate ceramics for high frequency resonator (2002)

High frequency piezoelectric resonators with multilayered structure of lead titanate and lead zirconate titanate ceramics were prepared to evaluate high frequency piezoelectric properties. By using high order harmonic vibration, a single resonant characteristics were obtained around 60MHz with no spurious between the resonance and the antiresonance frequency. The high frequency resonator of lead titanate showed high electromechanical coupling factor and low mechanical loss compared with that of lead zirconate titanate. The mechanical loss of these resonators increased with the resonance frequency. These results can be explained by the classical damping theory of a propagating wave with internal friction of piezoelectric ceramics.
End-to-end ASR-free keyword search from speech (2017)

End-to-end (E2E) systems have achieved competitive results compared to conventional hybrid hidden Markov model (HMM)-deep neural network based automatic speech recognition (ASR) systems. Such E2E systems are attractive due to the lack of dependence on alignments between input acoustic and output grapheme or HMM state sequence during training. This paper explores the design of an ASR-free end-to-end system for text query-based keyword search (KWS) from speech trained with minimal supervision. Our E2E KWS system consists of three sub-systems. The first sub-system is a recurrent neural network (RNN)-based acoustic auto-encoder trained to reconstruct the audio through a finite-dimensional representation. The second sub-system is a character-level RNN language model using embeddings learned from a convolutional neural network. Since the acoustic and text query embeddings occupy different representation spaces, they are input to a third feed-forward neural network that predicts whether the query occurs in the acoustic utterance or not. This E2E ASR-free KWS system performs respectably despite lacking a conventional ASR system and trains much faster.
Secure Function Evaluation Using an FPGA Overlay Architecture (2017)

Secure Function Evaluation (SFE) has received considerable attention recently due to the massive collection and mining of personal data over the Internet, but large computational costs still render it impractical. In this paper, we leverage hardware acceleration to tackle the scalability and efficiency challenges inherent in SFE. To that end, we propose a generic, reconfigurable implementation of SFE as a coarse-grained FPGA overlay architecture. Contrary to tailored approaches that are tied to the execution of a specific SFE structure, and require full reprogramming of an FPGA with each new execution, our design allows repurposing an FPGA to evaluate different SFE tasks without the need for reprogramming. Our implementation shows orders of magnitude improvement over a software package for evaluating garbled circuits, and demonstrates that the circuit being evaluated can change with almost no overhead.
Determination of binding affinities of retinoids to retinoic acid-binding protein and serum albumin (1978)

Binding affinities of retinoic acid and its synthetic analogues to intracellular retinoic acid-binding protein, which is a possible candidate for mediating their biological function, and to serum albumin, the plasma transport protein, were evaluated. A quantitative method involving elimination of interfering serum albumin by immunoprecipitation was developed to measure the binding efficiency of these retinoids, some of which are active in modifying epithelial differentiation and preventing tumorigenesis. Two cyclopentenyl analogues of retinoic acid and 13-cis-retinoic acid showed, like retinoic acid, a binding efficiency of 100% for the cellular binding protein. With the phenyl, dichlorophenyl and trimethylmethoxyphenyl analogues of retinoic acid, the binding efficiency increased as the substituents on the aromatic ring increased; thus the trimethylmethoxyphenyl analogue binds almost as efficiently as retinoic acid itself. However, the trimethylmethoxyphenyl analogue with a sulphur atom on the side chain has a much decreased binding affinity. The correlation noticed between the binding efficiency of these retinoids and their biological activity in differentiation and/or in the control of tumorigenesis particularly enhances the confidence in the present method of determining the relative binding efficiencies. None of the vitamins, hormones and cofactors tested, showed appreciable affinity for the retinoic acid-binding site. Studies on binding of retinoic acid and its analogues to serum albumin indicate that no correlation exists between binding affinity for albumin and their biological potency.
CCCXCII.—Colloidal phenoxides. Part I. The relation between constitution and colloidal properties in benzo-γ-pyrones (1929)

W. Baker and F. M. Eastwood, J. Chem. Soc., 1929, 2897 DOI: 10.1039/JR9290002897
Ferritin Contributes to Melanoma Progression by Modulating Cell Growth and Sensitivity to Oxidative Stress (2005)

These data suggest that high ferritin expression can enhance cell growth and improve resistance to oxidative stress in metastatic melanoma cells by interfering with their cellular antioxidant system. The potential significance of these findings deserves to be validated in a clinical setting.
Securing Multiparty Online Services Via Certification of Symbolic Transactions (2015)

The prevalence of security flaws in multiparty online services (e.g., Single-sign-on, third-party payment, etc.) calls for rigorous engineering supported by formal program verification. However, the adoption of program verification faces several hurdles in the real world: how to formally specify logic properties given that protocol specifications are often informal and vague, how to precisely model the attacker and the runtime platform, how to deal with the unbounded set of all potential transactions. We introduce Certification of Symbolic Transaction (CST), an approach to significantly lower these hurdles. CST tries to verify a protocol-independent safety property jointly defined over all parties, thus avoids the burden of individually specifying every party's property for every protocol, CST invokes static verification at runtime, i.e., It symbolically verifies every transaction on-the-fly, and thus (1) avoids the burden of modeling the attacker and the runtime platform, (2) reduces the proof obligation from considering all possible transactions to considering only the one at hand. We have applied CST on five commercially deployed applications, and show that, with only tens (or 100+) of lines of code changes per party, the original implementations are enhanced to achieve the objective of CST. Our security analysis shows that 12 out of 14 logic flaws reported in the literature will be prevented by CST. We also stress-tested CST by building a gambling system integrating four different services, for which there is no existing protocol to follow. Because transactions are symbolic and cacheable, CST has near-zero amortized runtime overhead. We make the source code of these implementations public, which are ready to be deployed for real-world uses.
Idiopathic Sudden Sensorineural Hearing Loss (2008)

A healthy 58-year-old woman answers the telephone and realizes that her hearing is diminished on the left side. She notices aural fullness and loud tinnitus in the affected ear. Self-administered ear cleaning with the use of an over-the-counter kit does not relieve the symptoms. How should she be evaluated and treated?
Acetylene Cyclotrimerization on Supported Size-Selected Pd<i><sub>n</sub></i>Clusters (1 ≤<i>n</i>≤ 30): One Atom Is Enough! (2000)

We studied the cyclotrimerization of acetylene on size-selected Pdn clusters (1 ≤ n ≤ 30) supported on thin MgO(100) films by thermal desorption and Fourier transform infrared spectroscopy. Surprisingly, the production of benzene is already observed on a single palladium atom at low temperature (300 K). Using density functional theory (DFT) calculations we show that free inert Pd atoms are activated by charge transfer from defect sites of the MgO substrate upon deposition. For larger clusters (7 ≤ n ≤ 30) benzene is additionally produced at a temperature of 430 K and our results suggest the existence of a critical ensemble of seven palladium atoms for this high-temperature reaction mechanism.
ChemInform Abstract: Combinatorial Chemistry — Challenge and Chance for the Development of New Catalysts and Materials (1999)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Organic solar cells of hydroxy squarylium (1976)

The photovoltaic properties of Schottky barrier solar cells made from thin films (100–1000 Å) of the organic dye hydroxy squarylium have been studied. Amorphous and polycrystalline films, prepared by evaporation and solution casting, have strong absorption over the entire visible spectrum. The highest power conversion efficiency measured under AMO white light was 0.1% (0.14 mW/cm2 input intensity); this decreased to 0.02% at 135 mW/cm2. The decrease in η with intensity is characteristic of organic materials, but is usually much more pronounced. For 8500-Å monochromatic light the quantum efficiency was as high as 2.3% and the conversion efficiency was 0.2% (1 mW/cm2).
Adaptive signal processing method using PRML for high density optical disks (2003)

Numerous types of DVD recording equipment have emerged on the market, and there is much demand for such optical storage systems with high speed and large capacity for digital high definition broadcasts. However, it becomes difficult to maintain data reliability with increasing recording speed and density, because the signal to noise ratio degrades and recording control of the phase changed mark becomes difficult. To improve the error rate of reproduced data, PRML (partial response maximum likelihood) decoding is expected to be used. We have developed a more advanced method of PRML, where the difference of the reproduced waveform is analyzed and the PRML decoder is compensated. In this paper we report the analysis of the reproduced waveform and the effect of the developed PRML algorithm.
Role of Stress, Arousal, and Coping Skills in Primary Insomnia (2003)

The findings suggest that the appraisal of stressors and the perceived lack of control over stressful events, rather than the number of stressful events per se, enhance the vulnerability to insomnia. Arousal and coping skills play an important mediating role between stress and sleep. The main implication of these results is that insomnia treatments should incorporate clinical methods designed to teach effective stress appraisal and coping skills.
Validation of a Numerical Quasi-One-Dimensional Model for Wave Rotor Turbines With Curved Channels (2019)

Abstract A wave rotor is a shock-driven pressure exchange device that, while relatively rarely studied or indeed, employed, offers significant potential efficiency gains in a variety of applications including refrigeration and gas turbine topping cycles. This paper introduces a quasi-one-dimensional (Q1D) wave action model implemented in matlab for the computation of the unsteady flow field and performance characteristics of wave rotors of straight or cambered channel profiles. The purpose here is to introduce and validate a rapid but reliable method of modeling the performance of a power-generating wave rotor where little such insight exists in open literature. The model numerically solves the laminar one-dimensional (1D) Navier–Stokes equations using a two-step Richtmyer time variation diminishing (TVD) scheme with minmod flux limiter. Additional source terms account for viscous losses, wall heat transfer, flow leakage between rotor and stator endplates as well as torque generation through momentum change. Model validation was conducted in two steps. First of all, unsteady and steady predictive capabilities were tested on three-port pressure divider rotors from open literature. The results show that both steady port flow conditions as well as the wave action within the rotor can be predicted with good agreement. Further validation was done on an in-house developed and experimentally tested four-port, three-cycle, throughflow microwave rotor turbine featuring symmetrically cambered passage walls aimed at delivering approximately 500 W of shaft power. The numerical results depict trends for pressure ratio, shaft power, and outlet temperature reasonably well. However, the results also highlight the need to accurately measure leakage gaps when the machine is running in thermal equilibrium.