gebhart/patrepeval huggingface dataset:
Trimethyl Aconitate (2009)

[20820-77-3] C9H12O6 (MW 216.19) (reagent used as enolate, Michael acceptor, and dienophile in an array of reactions) Physical Data: bp 95–96 °C (0.4 Torr),1 , R f = 0.67 (petroleum ether/diethyl ether 1:3). Solubility: sol ethanol, diethyl ether, and most organic solvents. Reduction Potential: −1.25, −1.78, −2.35 V in 0.1 M tetraethyl ammonium bromide in DMF at a hanging mercury drop vs. Ag/AgCl, sat. LiCl in MeOH.2 Preparative Methods: (E)-aconitic acid is prepared from citric acid by dehydration with sulfuric acid.2, 3 The acid is converted into (E)-trimethyl aconitate by refluxing with sulfuric acid in methanol.2, 4 Trialkyl (C3–C12) aconitates can be prepared from concentrated alkaline earth aconitate, which is obtained from sugarcane molasses.5 A mixture of (E)- and (Z)-trimethyl aconitate (73%) is produced from propynyl alcohol in a palladium-catalyzed carbonylation.6
8-(Heteroaryl)phenalkyl-1-Phenyl-1,3,8-triazaspiro[4.5]decan-4-ones as Opioid Receptor Modulators (2005)

A series of N-biarylalkyl-1-phenyl-1,3,8-triazaspiro[4.5]decan-4-ones were prepared and evaluated for biological activity at opioid (mu, delta, kappa) and opioid receptor like-1 (ORL-1) G-protein coupled receptors. Substitution on the biaryl moiety produced enhanced affinity for the mu-opioid receptor.
Can Serum Iron Concentrations in Early Healthy Pregnancy Be Risk Marker of Pregnancy-Induced Hypertension? (2019)

The aim of this study was to assess the relationship between serum iron concentrations in early healthy pregnancy and the risk of pregnancy-induced hypertension. The data comes from our prospective cohort study in which we recruited healthy women in week 10-14 of single pregnancy. We examined a study group (<i>n</i> = 121) consisting of women subsequently developing pregnancy-induced hypertension and a control group (<i>n</i> = 363) of matched women remaining normotensive. We measured iron concentrations in the serum collected in 10-14 gestational week, using the ICP-MS technique (mass spectrometry with inductively coupled plasma). The odds ratios of the disease (95% confidence intervals) for iron concentrations were assessed in multivariate logistic regression. We found that the mean microelement concentration was lower in the case group compared to normotensive controls (<i>p</i> = 0.011). Women in the lowest quartile of iron (≤801.20 µg/L) had a 2.19-fold increase in pregnancy-induced hypertension risk compared with women in the highest quartile (>1211.75 µg/L) (odds ratio (OR) = 2.19; 95% CI: 1.24-3.88; <i>p</i> = 0.007). This result was sustained after adjusted for all the accepted confounders. Women in the higher Q<sub>2</sub> quartile (801.20-982.33 µg/L) had a 17% lower risk, compared with those in the highest quartile (OR = 0.83; 95% CI: 0.65-2.32; <i>p</i> = 0.519).
Subnanosecond Pulses from an Nd Liquid Laser (1970)

Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Ernst E. Fill; Subnanosecond Pulses from an Nd Liquid Laser. J. Appl. Phys. 1 October 1970; 41 (11): 4749–4750. https://doi.org/10.1063/1.1658531 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAIP Publishing PortfolioJournal of Applied Physics Search Advanced Search |Citation Search
Broad Antiviral Activity of Carbohydrate-Binding Agents against the Four Serotypes of Dengue Virus in Monocyte-Derived Dendritic Cells (2011)

The CBAs exerted broad spectrum antiviral activity against the four DENV serotypes, laboratory-adapted viruses and low passage clinical isolates, evaluated in Raji/DC-SIGN(+) cells and in primary MDDC.
Formamide Synthesis through Borinic Acid Catalysed Transamidation under Mild Conditions (2016)

A highly efficient and mild transamidation of amides with amines co-catalysed by borinic acid and acetic acid has been reported. A wide range of functionalised formamides was synthesized in excellent yields, including important chiral α-amino acid derivatives, with minor racemisation being observed. Experiments suggested that the reaction rely on a cooperative catalysis involving an enhanced boron-derived Lewis acidity rather than an improved Brønsted acidity of acetic acid.
Evidence for Positronium-Like States in NaF and NaCl (1977)

The angular correlation of photons from positrons annihilating in NaF and NaCl at 300 K and 84 K has been measured. Narrow component which is characteristic of the annihilation of electron-positron pairs in a positronium-like statel has been observed on the angular correlation curves for the two alkali halides at 84 K.
Fate of alachlor and propachlor in a model ecosystem (1975)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFate of alachlor and propachlor in a model ecosystemChing-Chieh. Yu, Gary M. Booth, Dale J. Hansen, and Joseph R. LarsenCite this: J. Agric. Food Chem. 1975, 23, 5, 877–879Publication Date (Print):May 1, 1975Publication History Published online1 May 2002Published inissue 1 May 1975https://pubs.acs.org/doi/10.1021/jf60201a044https://doi.org/10.1021/jf60201a044research-articleACS PublicationsRequest reuse permissionsArticle Views54Altmetric-Citations9LEARN 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
Correlation between catalytic activity and secondary structure of subtilisin dissolved in organic solvents (1997)

Fourier-transform infrared (FTIR) spectroscopy has been used to quantify the alpha-helix and beta-sheet contents of subtilisin Carlsberg dissolved in several nonaqueous, as well as aqueous, solvents. Independently, the catalytic activity of the enzyme has been measured in the same solvents. While our previous FTIR studies revealed no connection between the secondary structure and enzymatic activity for subtilisin suspended in various organic solvents, a very different situation is observed herein for the dissolved enzyme. Specifically, if either the alpha-helix or beta-sheet content in a given solvent is higher or lower than in water, no appreciable enzymatic catalysis is observed. Conversely, when the secondary structure of subtilisin dissolved in a given nonaqueous solvent is similar to that in water, so is the enzymatic activity. (c) 1997 John Wiley & Sons, Inc. Biotechnol Bioeng 56: 485-491, 1997.
Discussion on the Stewart Platform Apparatus for Measuring the Six-dimensional Force (2000)

A new apparatus based on the Stewart platform structure for measuring six-dimensional force is introduced in this paper.On the basis of the statics of Stewart,a mathematical model of the apparatus for measuring six-dimensional force is set up.The relation between the six-dimensional force on the platform over the Stewart platform and the tensile and compressive forces on the six supporting legs is given,and also the structure design and measuring system design are carried out.
A dynamically reconfigurable ECG analog front-end with a 2.5 × data-dependent power reduction (2017)

This work addresses a fundamental drawback of conventional bio-signal acquisition interfaces by incorporating a reconfigurable analog front-end (AFE) that can be configured to always operate in an optimal power mode through digital assistance. Implemented in 65 nm CMOS, the AFE has tunable noise performance exhibiting an input-referred noise ranging from 1.90-2.91 μV <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">RMS</sub> while consuming 307-769 nW power from a 0.8 V supply. The low activity and quasi-periodicity of bio-signals are exploited using an LMS-based adaptive linear predictive filter for power reduction. An agile, on-the-fly dynamic noise-power reconfiguration strategy is used to achieve data-dependent power savings of 2.5× without compromising the system's anomaly detection capability or ability to extract pristine ECG features.
Initial corrosion of amalgams in vitro (1984)

Abstract – The amounts of copper, mercury, silver or zinc released from two brands of freshly prepared, lathe cut amalgams and from one brand of dispersed phase type amalgam into artificial saliva have been measured. Samples were immersed in the solution a few minutes after the end of trituration and exposed statically for periods of up to about 4 days. The initial mercury release from such specimens could exceed the long term mercury release from old amalgams by more than two orders of magnitude. The measurements indicate that during the first day after insertion of two amalgam fillings, each with an assumed surface area of 1 cm 2 and under presumably static conditions, mercury at the level of more than twice the mercury food and drink intake could be released in the oral cavity. This is, however, a situation which appears infrequently, e.g. following dental treatment once a year. The amounts of copper and zinc released initially were considerably lower than the corresponding food and drink intake values, while silver might be on the same level. The measurements were conducted using nuclear tracer techniques.
Imaging Effects of Radiation Therapy in the Abdomen and Pelvis: Evaluating “Innocent Bystander” Tissues (2013)

Accurate interpretation of posttherapeutic images obtained in radiation oncology patients requires familiarity with modern radiation therapy techniques and their expected effects on normal tissues. Three-dimensional conformal external-beam radiation therapy techniques (eg, intensity-modulated radiation therapy, stereotactic body radiation therapy), although they are designed to reduce the amount of normal tissue exposed to high-dose radiation, inevitably increase the amount of normal tissue that is exposed to low-dose radiation, with the potential for resultant changes that may evolve over time. Currently available internal radiation therapy techniques (eg, arterial radioembolization for hepatic malignancies, brachytherapy for prostate cancer and gynecologic cancers) also carry risks of possible injury to adjacent nontargeted tissues. The sensitivity of tissues to radiation exposure varies according to the tissue type but is generally proportional to the rate of cellular division, with rapidly regenerating tissues such as intestinal mucosa being the most radiosensitive. The characteristic response to radiation-induced injury likewise varies according to tissue type, with atrophy predominating in epithelial tissue whereas fibrosis predominates in stromal tissue. Moreover, changes in irradiated tissues evolve over time: In the liver, decreased attenuation at computed tomography and increased signal intensity at T2-weighted magnetic resonance imaging reflect hyperemia and edema in the early posttherapeutic period; later, veno-occlusive changes alter the hepatic enhancement pattern; and finally, fibrosis develops in some patients. In the small bowel, wall thickening and mucosal hyperenhancement predominate initially, whereas luminal narrowing is the most prominent feature of chronic enteropathy. Correlation of posttherapeutic images with images used for treatment planning may be helpful when interpreting complex cases.
Support recovery with sparsely sampled free random matrices (2011)

Consider a Bernoulli-Gaussian complex n-vector whose components are X <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">i</sub> B <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">i</sub> , with B <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">i</sub> ~Bernoulli-q and X <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">i</sub> ~ CN(0; σ <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> ), iid across i and mutually independent. This random q-sparse vector is multiplied by a random matrix U, and a randomly chosen subset of the components of average size np, p ∈ [0; 1], of the resulting vector is then observed in additive Gaussian noise. We extend the scope of conventional noisy compressive sampling models where U is typically the identity or a matrix with iid components, to allow U that satisfies a certain freeness condition, which encompasses Haar matrices and other unitarily invariant matrices. We use the replica method and the decoupling principle of Guo and Verdú, as well as a number of information theoretic bounds, to study the input-output mutual information and the support recovery error rate as n → ∞.
Target Detection with Adaptive Power Regression Thresholding for HF Radar (2006)

High frequency (HF) radars are capable to detect and track targets at extremely long ranges. But the signal environment that includes external noise, different kinds of clutter and interference will significantly limit the detection performance and system capability. This paper considers a new approach to solve the target detection problem in a complex HF radar signal environment. It uses a conventional constant false-alarm-rate (CFAR) detection procedure but the thresholding scheme is based on regression analysis of power spectrum values along range and Doppler cells. The CFAR detection test rule was combined with a local peak determination procedure. The proposed detection scheme has been tested using real HF radar data and gave very promising results
Aeroacoustic Source of a Shallow Cavity in a Pipeline (2011)

The flow-induced acoustic source of an axisymetric shallow cavity, coupled to longitudinal acoustic modes in a pipeline is characterized experimentally for circular pipes conveying fully developed turbulent flow. This aeroacoustic source is generated due to the interaction of the cavity shear layer oscillation with the resonant acoustic field in the pipe. The distributed aeroacoustic source is modeled by a lumped acoustic dipole source which is dependent on the Strouhal number and the acoustic particle velocity at the cavity. The amplitude and phase of this source are determined experimentally and presented in the form of a dimensionless complex source term.
F Centres (2016)

This glossary of terms covers phenomena considered under the very wide terms photocatalysis and radiation catalysis. A clear distinction is made between phenomena related to either photochemistry and photocatalysis or radiation chemistry and radiation catalysis. The term “radiation” is used here as embracing electromagnetic radiation of all wavelengths, but in general excluding fast-moving particles. Consistent definitions are given of terms in the areas mentioned above, as well as definitions of the most important parameters used for the quantitative description of the phenomena. Terms related to the up-scaling of photocatalytic processes for industrial applications have been included. This Glossary should be used together with the Glossary of terms used in photochemistry, 3rd edition, IUPAC Recommendations 2006: (doi:10.1351/pac200779030293) as well as with the IUPAC Compendium of Chemical Terminology, 2nd ed. (the “Gold Book” 2006–; doi:10.1351/goldbook), because many terms used in photocatalysis are defined in these documents.
Identification de systemes lineaires : reflexions et contributions (1987)

Les resultats enonces portent principalement sur: l'identification correcte de la reponse impulsionnelle d'un systeme excite par des sequences de longueur maximale; l'identification par comparaison de la reponse d'un systeme du monde avec un ensemble de systemes du modele; la resolution de systemes lineaires et la solution de probleme aux valeurs/vecteurs propres de matrices symetriques quand les donnees sont des intervalles
Noninvasive measurement of the pH of the endoplasmic reticulum at rest and during calcium release (1998)

The pH within individual organelles of the secretory pathway is believed to be an important determinant of their biosynthetic activity. However, little is known about the determinants and regulation of the pH in the secretory organelles, which cannot be readily accessed by [H+]-sensitive probes. We devised a procedure for the dynamic, noninvasive measurement of pH in the lumen of the endoplasmic reticulum in intact mammalian cells. A recombinant form of the B subunit of Shiga toxin, previously modified to include a carboxyl-terminal KDEL sequence and a pH-sensitive fluorophore, was used for a two-stage delivery strategy. Retrograde traffic of endogenous lipids was harnessed to target this protein to the Golgi complex, followed by retrieval to the endoplasmic reticulum (ER) by KDEL receptors. Immunofluorescence and immunoelectron microscopy were used to verify the subcellular localization of the modified B fragment. Fluorescence ratio imaging and two independent calibration procedures were applied to determine the pH of the ER in situ. We found that the pH of the endoplasmic reticulum is near neutral and is unaffected during agonist-induced release of calcium. The ER was found to be highly permeable to H+ (equivalents), so that the prevailing [H+] is susceptible to alterations in the cytosolic pH. Plasmalemmal acid-base transporters were shown to indirectly regulate the endoplasmic reticulum pH.
Liquid-Phase Deposition of TiO2 on Polystyrene Latex Particles Functionalized by the Adsorption of Polyelectrolytes (2005)

The adsorption of polyelectrolyte layers on polystyrene latex particles was used as a method of surface functionalization for the nucleation and growth of a TiO2 shell on the lattices by liquid-phase deposition. Surface modification by adsorption of a single layer or a bilayer of polyelectrolytes was traced by zeta potential measurements. The TiO2 film formation is very sensitive to the nature of the adsorbed polyelectrolytes, and material deposition in an aqueous latex dispersion ranges from an exclusively homogeneous precipitation of TiO2 particles to a complete coating of the polymer surface with a smooth inorganic shell. An incomplete, patchy TiO2 deposition at the early stage of the coating process leads to a rapid growth of uneven shells, whereas uniform coverage of the substrate at the initial stage leads to the growth of smooth shells at a reduced deposition rate, suggesting that the shell growth rate and the extent of homogeneous precipitation is dependent on the interaction of the substrate with the deposition solution.
Distributed lifetime maximisation in wireless sensor networks using cooperation techniques (2011)

This paper is concerned with the lifetime maximisation of wireless sensor networks (WSNs) in the context of slow-fading communication channels. The problem is first formulated as a decomposable convex optimisation problem. Dual decomposition is presented as a way to decompose the problem into smaller subproblems that can be solved locally by the nodes. Particular attention is paid to networks using cooperative communication techniques. As illustrative examples, formulations of the network lifetime maximisation problem are provided in the presence of (i) single-relay cooperation and (ii) broadcast-cooperative beamforming operations exploiting the spacial diversity of WSNs.
Media transports and distributed multimedia flows (1992)

Abstracti The flow requirements of distributed multimedia are discussed, and some necessary transport features are proposed in this paper.
Deep Neural Network-Based Click-Through Rate Prediction using Multimodal Features of Online Banners (2019)

As the online advertisement industry continues to grow, by 2020, it will account for over 40% of global advertisement spending. Thus, predicting the click-through rates (CTRs) of various advertisements is increasingly crucial for companies. Many studies have addressed CTR prediction. How-ever, most tried to solve the problem using only metadata and excluded information such as advertisement images or texts. Using deep learning techniques, we propose a method to predict CTRs for online banners, a popular form of online advertisements, using all these features. We show that multimedia features of advertisements are useful for the task at hand. The proposed learning architecture outperforms a previous method that uses the three features mentioned above. We also present an attention-based model, which enables visualization of contributions of each feature to the prediction. We analyze how each feature affects CTR prediction with visualization and detailed studies.
Survey in the Emergency Department of Parents’ Understanding of Cough and Cold Medication Use in Children Younger Than 2 Years (2012)

The majority of caregivers were not aware of the FDA guidelines on CCM use in children younger than 2 years. Most thought CCMs were safe and effective.
Per-Round Knapsack-Constrained Linear Submodular Bandits (2016)

Linear submodular bandits has been proven to be effective in solving the diversification and feature-based exploration problem in information retrieval systems. Considering there is inevitably a budget constraint in many web-based applications, such as news article recommendations and online advertising, we study the problem of diversification under a budget constraint in a bandit setting. We first introduce a budget constraint to each exploration step of linear submodular bandits as a new problem, which we call per-round knapsack-constrained linear submodular bandits. We then define an [Formula: see text]-approximation unit-cost regret considering that the submodular function maximization is NP-hard. To solve this new problem, we propose two greedy algorithms based on a modified UCB rule. We prove these two algorithms with different regret bounds and computational complexities. Inspired by the lazy evaluation process in submodular function maximization, we also prove that a modified lazy evaluation process can be used to accelerate our algorithms without losing their theoretical guarantee. We conduct a number of experiments, and the experimental results confirm our theoretical analyses.
Emulation-based robustness assessment for automotive smart-power ICs (2014)

In this paper we present a concept for assessing the robustness of automotive smart power ICs through lab measurements with respect to application variance and parameter spread. Classical compliance to the product specification, where only minimum and maximum values are defined, is not enough to assess device robustness since complex transients of application components cannot be defined within single specification parameters. That is why application fitness becomes a necessary task to reduce device failures, which may occur in the application. One solution would be to enhance traditional lab verification methods with a concept that considers application and parameter spread. This innovative concept is demonstrated on an electronic throttle control application. It has been emulated in real-time, including power amplification and application-relevant parameters. Monte Carlo experiments were carried out within the application space to evaluate the influence of parameter spread on selected system characteristics. Finally, an appropriate metric was used to quantify the robustness of the micro-electronic device within its application.