gebhart/patrepeval huggingface dataset:
High Temperature Vaporization Behavior of Oxides. I. Alkali Metal Binary Oxides (1984)

In order to assess the high temperature vaporization behavior and equilibrium gas phase compositions of binary alkali metal oxides, the relevant thermodynamic and molecular constant data have been compiled and critically evaluated. Selected values of the Gibbs energy and enthalpy functions of condensed and vapor phases are given in the form of equations valid over wide temperature ranges, along with the standard entropies and enthalpies of formation. These data were used to generate plots of the equilibrium partial pressures of vapor species as functions of temperature for representative conditions ranging from reducing to oxidizing. Maximum vaporization rates have been calculated using the Hertz–Knudsen equation. Literature references are given.
Application of 3D Seismic Data Inversion to Coal Mining Prospecting (2005)

Seismic inversion is one of the most important methods for lithological prospecting . Seismic data with low resolution is converted into impedance data of high resolution which can reflect the geological structure by inversion The inversion technique of 3D seismic data is discussed from both methodological and theoretical aspects, and the inversion test is also carried out using actual logging data. The result is identical with the measured data obtained from roadway of coal mine. The field tests and research results indicate that this method can provide more accurate data for identifying thin coal seam and minor faults.
Ischemic Mitral Regurgitation: A Complex Multifaceted Disease (2008)

Ischemic mitral regurgitation (MR) is a complex multifactorial disease that involves global and regional left ventricular remodeling as well as dysfunction and distortion of the components of the mitral valve including the chordae, annulus and leaflets. This is a frequent (13–59%) complication of myocardial infarction, which is associated with a poor prognosis. The suboptimal results obtained with the most commonly used surgical strategy, that is, restrictive annuloplasty combined with coronary artery bypass graft, emphasize the need to develop alternative or concomitant surgical techniques that directly target the causal mechanisms of the disease. A comprehensive assessment of mitral valve configuration and left ventricular geometry and function prior to surgery as well as an accurate quantification of MR severity at rest and during exercise may help improve patient risk stratification and better individualize the surgical strategy based on the patient’s specific characteristics. The purpose of this review is to summarize the current state of knowledge with regard to the definition, prevalence, mechanisms, outcome and treatment of ischemic MR.
Intermetallics <i>J</i>. <i>Am</i>. <i>Chem</i>. <i>Soc</i>. <b>1996</b>, <i>118</i>, 934 (1996)

ADVERTISEMENT RETURN TO ISSUEPREVAddition/CorrectionNEXTIntermetallics J. Am. Chem. Soc. 1996, 118, 934Gerhard SauthoffCite this: J. Am. Chem. Soc. 1996, 118, 43, 10678Publication Date (Web):October 30, 1996Publication History Published online30 October 1996Published inissue 1 January 1996https://pubs.acs.org/doi/10.1021/ja965445vhttps://doi.org/10.1021/ja965445vcorrectionACS PublicationsCopyright © 1996 American Chemical Society. This publication is available under these Terms of Use. Request reuse permissions This publication is free to access through this site. Learn MoreArticle Views886Altmetric-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 PDF (20 KB) Get e-Alertsclose Get e-Alerts
Dynamic communication models in embedded system co-simulation (1997)

Many co-simulation techniques either suffer from poor performancewhen simulating communications intensive systems, or theyrepresent communications with a uniformly low level of detail.This paper presents a technique which allows communication tobe represented at multiple levels of detail and which gives a designerthe ability to dynamically choose the appropriate level fordifferent parts of the system. This paper also presents a tool whichuses this technique and experiments which show relative simulationspeedups.
Static synchronous compensators (STATCOM): a review (2009)

Fast acting static synchronous compensator (STATCOM), a representative of FACTS family, is a promising technology being extensively used as the state-of-the-art dynamic shunt compensator for reactive power control in transmission and distribution system. Over the last couple of decades, researchers and engineers have made path-breaking research on this technology and by virtue of which, many STATCOM controllers based on the self-commutating solid-state voltage-source converter (VSC) have been developed and commercially put in operation to control system dynamics under stressed conditions. Because of its many attributes, STATCOM has emerged as a qualitatively superior controller relative to the line commutating static VAR compensator (SVC). This controller is called with different terminologies as STATic COMpensator advanced static VAR compensator, advanced static VAR generator or static VAR generator, STATic CONdenser, synchronous solid-state VAR compensator, VSC-based SVC or self-commutated SVC or static synchronous compensator (SSC or S2C). The development of STATCOM controller employing various solid-state converter topologies, magnetics configurations, control algorithms, switching techniques and so on, has been well reported in literature with its versatile applications in power system. A review on the state-of-the-art STATCOM technology and further research potential are presented classifying more than 300 research publications.
WAF1 Retards S-Phase Progression Primarily by Inhibition of Cyclin-Dependent Kinases (1997)

The p21(WAF1/CIP1/sdi1) gene product (WAF1) inhibits DNA replication in vitro (J. Chen, P. Jackson, M. Kirschner, and A. Dutta, Nature 374:386-388, 1995; S. Waga, G. Hannon, D. Beach, and B. Stillman, Nature 369:574-578, 1994), but in vivo studies on the antiproliferative activity of WAF1 have not resolved G1-phase arrest from potential inhibition of S-phase progression. Here, we demonstrate that elevated WAF1 expression can retard replicative DNA synthesis in vivo. The WAF1-mediated inhibitory effect could be antagonized by cyclin A, cyclin E, or the simian virus 40 small-t antigen with no decrease in the levels of WAF1 protein in transfected cells. Proliferating-cell nuclear antigen (PCNA) overexpression was neither necessary nor sufficient to antagonize WAF1 action. Expression of the N-terminal domain of WAF1, responsible for cyclin-dependent kinase (CDK) interaction, had the same effect as full-length WAF1, while the PCNA binding C terminus exhibited modest activity. We conclude that S-phase progression in mammalian cells is dependent on continuing cyclin and CDK activity and that WAF1 affects S phase primarily through cyclin- and CDK-dependent pathways.
Mutagenesis of Ste18, a putative Gγ subunit in the <i>Saccharomyces cerevisiae</i> pheromone response pathway (1992)

The yeast STE18 gene product has sequence and functional similarity to the gamma subunits of G proteins. The cloned STE18 gene was subjected to a saturation mutagenesis using doped oligonucleotides. The populations of mutant genes were screened for two classes of STE18 mutations, those that allowed for increased mating of a strain containing a defective STE4 gene (compensators) and those that inhibited mating even in the presence of a functional STE18 gene (dominant negatives). Three amino acid substitutions that enhanced mating in a specific STE4 (G beta) point mutant background were identified. These compensatory mutations were allele specific and had no detectable phenotype of their own; they may define residues that mediate an association between the G beta and G gamma subunits or in the association of the G beta gamma subunit with other components of the signalling pathway. Several dominant negative mutations were also identified, including two C terminal truncations. These mutant proteins were unable to function in signal transduction by themselves, but they prevented signal transduction mediated by pheromone, as well as the constitutive signalling which is present in cells defective in the GPA1 (G alpha) gene. These mutant proteins may sequester G beta or some other component of the signalling machinery in a nonfunctional complex.
Profile of pridopidine and its potential in the treatment of Huntington disease: the evidence&nbsp;to&nbsp;date (2015)

Huntington disease (HD) is a chronic, genetic, neurodegenerative disease for which there is no cure. The main symptoms of HD are abnormal involuntary movements (chorea and dystonia), impaired voluntary movements (ie, incoordination and gait balance), progressive cognitive decline, and psychiatric disturbances. HD is caused by a CAG-repeat expanded mutation in the HTT gene, which encodes the huntingtin protein. The inherited mutation results in the production of an elongated polyQ mutant huntingtin protein (mHtt). The cellular functions of the Htt protein are not yet fully understood, but the functions of its mutant variant are thought to include alteration of gene transcription and energy production, and dysregulation of neurotransmitter metabolism, receptors, and growth factors. The phenylpiperidines pridopidine (4-[3-methanesulfonyl-phenyl]-1-propyl-piperidine; formerly known as ACR16) and OSU6162 ([S]-[-]-3-[3-methane [sulfonyl-phenyl]-1-propyl-piperidine) are members of a new class of pharmacologic agents known as "dopamine stabilizers". Recent clinical trials have highlighted the potential of pridopidine for symptomatic treatment of patients with HD. More recently, the analysis of HD models (ie, in vitro and in mice) highlighted previously unknown effects of pridopidine (increase in brain-derived neurotrophic factor, reduction in mHtt levels, and σ-1 receptor binding and modulation). These additional functions of pridopidine suggest it might be a neuroprotective and disease-modifying drug. Data from ongoing clinical trials of pridopidine will help define its place in the treatment of HD. This commentary examines the available preclinical and clinical evidence regarding the use of pridopidine in HD.
Mixed signal temperature control circuit for on-chip CMOS gas sensor (2009)

This paper describes a mixed signal approach to micro-hotplate temperature control technique using digital On-off control logic. The novel micro-hotplate used for this purpose is based on standard 600 nm CMOS technology and contains a metal micro-heater, a (parasitic) bipolar transistor temperature sensor and an interdigitated electrode in a dielectric membrane. The micro-hotplate and the mixed-signal controller circuit are integrated on a single chip. Typically such micro-hotplate are used in MEMS gas sensing application where we believe on-chip integration will enable accurate temperature monitoring and control with the added benefit of producing low power, low cost gas sensors.
MesoNet: a Compact Facial Video Forgery Detection Network (2018)

This paper presents a method to automatically and efficiently detect face tampering in videos, and particularly focuses on two recent techniques used to generate hyper-realistic forged videos: Deepfake and Face2Face. Traditional image forensics techniques are usually not well suited to videos due to the compression that strongly degrades the data. Thus, this paper follows a deep learning approach and presents two networks, both with a low number of layers to focus on the mesoscopic properties of images. We evaluate those fast networks on both an existing dataset and a dataset we have constituted from online videos. The tests demonstrate a very successful detection rate with more than 98% for Deepfake and 95% for Face2Face.
On the Mechanism of Constitutive Pdr1 Activator-mediated PDR5 Transcription in Saccharomyces cerevisiae (2004)

Drug resistance as a result of overexpression of drug transporter genes presents a major obstacle in the treatment of cancers and infections. The molecular mechanisms underlying transcriptional up-regulation of drug transporter genes remains elusive. Employing Saccharomyces cerevisiae as a model, we analyzed here transcriptional regulation of the drug transporter gene PDR5 in a drug-resistant pdr1-3 strain. This mutant bears a gain-of-function mutation in PDR1, which encodes a transcriptional activator for PDR5. Similar to the well studied model gene GAL1, we provide evidence showing that PDR5 belongs to a group of genes whose transcription requires the Spt-Ada-Gcn5 acetyltransferase (SAGA) complex. We also show that the drugindependent PDR5 transcription is associated with enhanced promoter occupancy of coactivator complexes, including SAGA, Mediator, chromatin remodeling SWI/SNF complex, and TATA-binding protein. Analyzed by chromatin immunoprecipitations, loss of contacts between histones and DNA occurs at both promoter and coding sequences of PDR5. Consistently, micrococcal nuclease susceptibility analysis revealed altered chromatin structure at the promoter and coding sequences of PDR5. Our data provide molecular description of the changes associated with constitutive PDR5 transcription, and reveal the molecular mechanism underlying drug-independent transcriptional up-regulation of PDR5.
Characterization of PMN:BA electroceramic plates and SELECT actuators at low temperatures (1992)

Lead magnesium niobate (PMN) has many attractive features for precision submicron control. At room temperature hysteresis is less than 1%, thermal expansion is less than 1 ppm/ degree(s)C, and the sensitivity is 375 ppm strain at 600 V/mm. There has been recent interest in using PMN actuators in applications near 0 degree(s)C, which is near the Curie temperature of the PMN material. An investigation was conducted to obtain data on PMN:BA strain response and hysteresis at lower temperatures. Results of these experiments which were conducted to characterize the longitudinal and transverse field-induced strains at temperatures between -7 degree(s)C to 24 degree(s)C are provided for SELECT multilayer actuators and electroceramic plates. Measurements were made at 1 Hz both at constant maximum field (600 V/mm) as well as constant maximum strain (300 ppm for longitudinal; 140 ppm for transverse). Data shows that hysteresis and strain sensitivity to field increase monotonically as the temperature is decreased throughout the test range. Transverse strain is shown to track the longitudinal strain closely, within a simple scale factor. A comparison is made between constant field and constant strain hysteresis for both the longitudinal and transverse cases. Finally, data is presented which shows a factor of four reduction in hysteresis using passive charge control.
On minimum-collisions assignment in heterogeneous self-organizing networks (2014)

Minimum-collisions assignment (MCA), in a wireless network, is the distribution of a finite resource set, such that the number of neighbor cells which receive common elements is minimized. In classical operator deployed networks, resources are assigned centrally. Heterogeneous networks contain user deployed cells, therefore centralized assignment is problematic. MCA includes orthogonal frequency bands, time slots, and physical cell identity (PCI) allocation. MCA is NP-complete, therefore a potential-game-theoretic model is proposed as a distributed solution. The players of the game are the cells, actions are the set of PCIs and the cost of a cell is the number of neighbor cells in collision. The price of anarchy and price of stability are derived. Moreover the paper adapts a randomized-distributed-synchronous-update algorithm, for the case, when the number of PCIs is higher than the maximum degree of the neighbor relations graph. It is proven that the algorithm converges to a optimal pure strategy Nash equilibrium in finite time and it is robust to node addition. Simulation results demonstrate that the algorithm is sub-linear in the size of the input graph, thus outperforms best response dynamics.
BIOLOGICAL ACTIVITIES of Musa SPECIES : Musa TÜRLERİNİN BİYOLOJİK AKTİVİTELERİ (2001)

Musa species (Musaceae), a tropical plant, have been consumed since many years by mankind for its nutricious and delicious fruits. In addition to this, Musa species have been reported to have various biological activities such as antiulcerogenie, antidiabetic, antiatherogenic, antidiarrheic, antitumoral, antimutagenic and have been also found to be effective in treatment of migraine, hypertension, cholesterol and hiperoxalury. In this review, general information about biological activities of Musa sp. is given
Biosynthesis and Transport of the Lantibiotic Mutacin 1140 Produced by Streptococcus mutans (2015)

Mutacin 1140 belongs to the class I lantibiotic family of ribosomally synthesized and posttranslationally modified peptides (RiPPs). The biosynthesis of mutacin 1140 is a highly efficient process which does not lead to a discernible level of production of partially modified core peptide variants. The products isolated from an extensive mutagenesis study on the leader and core peptides of mutacin 1140 show that the posttranslational modifications (PTMs) on the core peptide occur under a highly coordinated dynamic process. PTMs are dictated by the distance of the core peptide modifiable residues from PTM enzyme active sites. The formation of lanthionine rings aids in the formation of successive PTMs, as was observed in a peptide variant lacking a C-terminal decarboxylation.
Well-Defined Polymers Bearing Pendent Alkene Functionalities via Selective RAFT Polymerization (2008)

A facile synthetic approach for the preparation of well-defined (co)polymers bearing pendent alkene functionalities was established by selective reversible addition-fragmentation chain transfer (RAFT) (co)polymerization. A divinyl monomer 4-(3'-buten-1'-oxy)-2,3,5,6-tetrafluorostyrene (1) with a styrenyl group and a pendent alkene group was synthesized. Due to a very high reactivity of the styrenyl group relative to the alkene group in 1, functional fluoro(co)polymers with both well-defined structures and pendent alkene groups were prepared by RAFT polymerizations of 1 and copolymerization of 1 with pentafluorostyrene (PFS). Alkene-functionalized diblock copolymers were also prepared by RAFT copolymerization of 1 with PFS or styrene, extending from a poly(styrene-alt-maleic anhydride) macro-chain transfer agent. Hydrolysis and ammonolysis of these copolymers resulted in amphiphilic diblock fluorocopolymers with alkene-functionalized hydrophobic segments, which were shown to form internally-functionalized micelles in THF-water.
Heat Production by Bacterial Magnetosomes Exposed to an Oscillating Magnetic Field (2010)

In this work, we examined mechanisms of heat production by whole intact cells of the magnetotactic bacterium Magnetospirillum magneticum strain AMB-1, as well as by their extracted chains of magnetosomes or extracted individual magnetosomes when exposed to an oscillating magnetic field of frequency 108 kHz and field amplitudes 23 and 88 mT. In this study, magnetosomes did not contain magnetite as the magnetite oxidized to maghemite. For intact bacterial cells that contain chains of magnetosomes, heat is generated through hysteresis losses, yielding specific absorption rates (SARs) of 115 ± 12 W/gFe at 23 mT and 864 ± 9 W/gFe at 88 mT. When the chains of magnetosomes are extracted from the bacterial cells and exposed to the same magnetic field, the heat-producing mechanism includes an additional contribution that is due to their rotation in the magnetic field. This contribution appeared to result in higher observed SARs of 864 ± 13 W/gFe at 23 mT and 1242 ± 24 W/gFe at 88 mT. SAR values of 529 ± 14 W/gFe at 23 mT and 950 ± 18 W/gFe at 88 mT were obtained with individual magnetosomes whose membranes had been removed.
Use of CO2 Containing Impurities for Miscible Enhanced Oil Recovery (2010)

Abstract When conducting enhanced oil recovery (EOR) projects, utilizing CO2 as a solvent, there are three primary options for sourcing the CO2 injectant. These are naturally occurring deposits, anthropogenic flue gas capture, or recycled CO2 from an earlier stage of an EOR project. All of these sources may contain impurities that will change the properties of the injectant, potentially impacting all stages of the system. For instance, captured flue gas may contain quantities of N2, while produced or recycled sources may contain CH4 and/natural gas liquids (NGL). Either or both may contain SO2 or H2S. Each of these impurities has a different effect on the thermodynamic and fluid flow characteristics of CO2; exhibiting either beneficial or detrimental impact on miscibility, density and viscosity of the injectant and its interaction with in situ hydrocarbons. Impurities can also modify compression capacity, corrosion control and pipeline specifications. This paper describes the impact of CO2 impurities on all stages of an EOR project, from CO2 capture to flood efficiency prediction. Miscibility, density, and viscosity, along with rock properties, are the primary determinants of flood efficiency in a given rock and fluid setting. A screening tool has been developed to estimate EOR performance for different crude oils. Screening is done for miscibility, density, and viscosity and other parameters important to the efficiency of an EOR process. A key component of the screening tool is a solubility-parameter-based approach to screening CO2 injectants containing impurities for miscibility against a range of crude oils. This technology, combined with worldwide operating experience, has been used to evaluate EOR potential in reservoirs across a full range of pressure, temperature, and fluid compositions. By accurately evaluating the impact of impurities in the injectant, it is also possible to estimate an economic optimum solution for securing and utilizing an injectant supply without incurring the additional costs of treating the stream to remove and dispose of all impurities. By way of a field example, the paper discusses the impact of miscibility, density and viscosity on the efficiency of the CO2 miscible EOR process. It also presents investigations aimed at extending current light oil recovery projects into reservoirs with either residual oil zones (ROZ), viscous oils or biodegraded crudes.