gebhart/patrepeval huggingface dataset:
Higher Spatial Harmonic Leaky Wave Antenna Design Based on Meandering Microstrips (2023)

A Leaky Wave Antenna (LWA) design with high scanning rate (the ratio of beam scanning range and bandwidth) is proposed in this work. The antenna is based on a periodic meandering microstrip line operating in K-Band with continuous beam scanning from backward-to-forward direction in the elevation plane. The height of the transverse lines is varied periodically in the unit cell to increase the electrical length. Hence, the antenna operates in higher spatial order which increases the scanning rate. The final antenna shows a scanning range in the elevation plane from −40° to 45° in the frequency range from 20.6 GHz to 24.6 GHz corresponding to a scanning rate of 21.25 ° GHz <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">−1</sup> . The antenna performance is compared with conventional meandering leaky wave antenna design to demonstrate notable increase in the scanning rate with very less impact on gain while also maintaining low profile.
Prenatal Exposure to Prednisone in Humans and Animals Retards Intrauterine Growth (1978)

Prednisone treatment for infertility and subsequent pregnancy maintenance in humans resulted in a significant decrease in the birth weight of full-term infants and a marked increase in the percentage of newborn infants weighing 2500 grams or less, that is, "light for dates" in comparison to control offspring. A parallel experiment with mice indicated that the reduction of birth weight was caused by exposure to corticosteroids rather than to maternal disease or malfunction.
Application of Titanium for Fixed Restorations. (1998)

Although titanium has been cast for over 50 years, it has only been recently that nearly precise casting has been attainable. Titanium is well known for its general biocompatibility and very low allergic potential. The difficulties with cast titanium for dental purposes include high melting temperature and high reactivity, low casting efficiency, inadequate expansion of investment, casting porosity, and difficulty in polishing this metal. Recently, improvements in processing techniques such as casting, computer-aided manufacturing, and spark erosion have made dental titanium restorations possible, and titanium is widely used in fixed restoration. It is expected that titanium will be applied to hard resin facing crown, ceramometal crown, post of the abutment tooth and machine-milled metal of CAD/CAM system. However, when titanium is applied with hard resin adhering metal and porcelain fusing metal, problems of strong oxidation of the metal surface and coarse oxidative adhesion arise. Therefore, how the treatment of titanium surface affected the adhesive strength between titanium and hard resin and the oxidation heat treatment affected the bonding strength for clinical applications were investigated. Because of fine mechanical strength and positive biologic properties of pure titanium, it is suited for the fabricated post of an endodontically-treated tooth. Since the CAD/CAM system utilizes a milling machine, casting is unnecessary; therefore, titanium can exhibit its original properties. The CAD/CAM system copes with pure titanium in a short time, and hard resin is adhered with it or porcelain is fused to it. Conventional soldering techniques do not work in titanium because of its passivated oxide layer and high reactivity. The laser welding technique using titanium to join the sectioned ends has demonstrated less heat affect and more accuracy than the conventional soldering technique.
Lithotripsy stimulates new bone formation and mitigates loss of bone due to disuse in aged rats (2013)

Taken as a whole, lithotripsy may offer a viable treatment method for disuse osteopenia or osteoporosis, particularly for aging individuals or for those who are limited in their weight bearing activities.
Optogenetic LED array for perturbing cardiac electrophysiology (2013)

Optogenetics is the targeted genetic introduction of light-sensitive channels, such as Channelrhodopsin, and pumps, such as Halorhodopsin, into electrically-excitable cells that enables high spatiotemporal electrical stimulation and inhibition by optical actuation. Technologies for inducing optogenetically-based electrical stimulation for investigating in vitro and in vivo neural perturbations have been described. However, modification of existing technologies or creation of new ones has not been described for chronic cardiac applications. Here, an LED array system for optogenetically perturbing cardiac electrophysiology is described. The overall layout of the system consists of an LED holder containing six LED's that deliver pulsed ∼470 nm light to pluripotent stem cell-derived cardiomyocytes cultured in a 6-well tissue culture plate. The response of the cardiomyocytes is monitored by microscopy and the system is enclosed within a standard incubator. This system is relatively simple to create and uses mostly off-the-shelf components. The overall function of the system is to deliver chronic light stimulation over days to weeks to differentiating stem cell-derived cardiomyocytes in order to investigate perturbations in their electrophysiology.
ChemInform Abstract: Transition‐Metal‐Free Conjugate Stannyl Transfer to α,β‐Unsaturated Carbonyl and Carboxyl Compounds in Basic Aqueous Media. (2008)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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.
The effect of lake browning and respiration mode on the burial and fate of carbon and mercury in the sediment of two boreal lakes (2015)

Abstract In many northern temperate regions, the water color of lakes has increased over the past decades (“lake browning”), probably caused by an increased export of dissolved organic matter from soils. We investigated if the increase in water color in two lakes in Norway has resulted in increased burial of organic carbon (OC) and mercury (Hg) in the sediments and if the Hg was prone to methylation. Lake Solbergvann experienced a threefold water color increase, and OC burial increased approximately twofold concomitant to the water color increase. This lake had prolonged periods of anoxic bottom water, and anoxic OC mineralization rates were only about half of the oxic OC mineralization rates (7.7 and 17.5 g C m −2 yr −1 , respectively), contributing to an efficient OC burial. In Lake Elvåga, where water color increase was only approximately twofold and bottom water was oxygenated, no recent increase in OC burial could be observed. Hg burial increased strongly in both lakes (threefold and 1.6‐fold in Lake Solbergvann and Lake Elvåga, respectively), again concomitant to the recent water color increase. The proportion of methylated Hg (MeHg) in surficial sediment was 1 order of magnitude higher in Lake Elvåga (up to 6% MeHg) than in Lake Solbergvann (0.2–0.6% MeHg), probably related to the different oxygenation regimes. We conclude that lake browning can result in increased OC and Hg burial in lake sediments, but the extent of browning and the dominating mode of sediment respiration (aerobic or anaerobic) strongly affect burial and fate of OC and Hg in sediments.
Assessment of Improved Motion-Sensitized Driven Equilibrium (iMSDE) for Multi-contrast Vessel Wall Screening (2014)

The iMSDE-TFE sequence is an efficient technique for vessel wall screening.
Development of effective connectivity for narrative comprehension in children (2007)

A large-scale study of narrative comprehension using functional MRI was performed involving children of ages 5-18 years old using a recently published method, multivariate autoregressive modeling, modified for multi subject analyses to investigate effective connectivity and its development with age. Feedback networks were found during a narrative processing task and involved effective connectivity from Broca's area and the medial aspect of the superior frontal gyrus to the posterior aspects of the superior temporal gyrus bilaterally. The effective connectivity from Broca's area to the superior temporal gyrus in the left hemisphere was shown to increase with age. The results demonstrate the feasibility of performing multi subject multivariate autoregressive modeling analyses to investigate effective connectivity in the absence of an a priori model.
Zwischen den Nationen (1992)

Die Uraufführung von Verdis Les Vêpres Siciliennes erfolgte gerade vier Wochen, nachdem Napoléon III auf den Champs-Elysées feierlich die »Exposition universelle« eröffnet hatte. Nach der überaus erfolgreichen Londoner Weltausstellung von 1851 handelte es sich dabei um die zweite Veranstaltung ihrer Art und die erste, die in Frankreich durchgeführt wurde. Das Zusammentreffen von Verdis Inszenierung vereinsamter Individuen und der gigantischen Selbstinszenierung einer Gesellschaft, die glaubte, Kunstwerke wie Maschinen, exotische Kultfiguren wie Fundstücke aus der Natur als Waren drapieren zu können1, war allerdings rein zufällig. Obwohl auch in neuesten Veröffentlichungen der Eindruck erweckt wird, bei Verdis Oper von 1855 habe es sich wie beim späteren Don Carlos, dessen Premiere 1867 wieder mit einer Pariser Weltausstellung zusammenfiel, um eigens zu diesem Anlaß komponierte offizielle Auftragswerke gehandelt, war diese Parallelität in beiden Fällen allein auf die unvorhersehbaren Verzögerungen zurückzuführen, die die langwierige Entstehung der Werke begleitet hatte. In Auftrag gegeben hatte die Direktion der Pariser Opéra die beiden Opern schon wesentlich früher, Les Vêpres Siciliennes am 28. Februar 1852, wobei als Aufführungstermin ausdrücklich November oder Dezember 1854 festgelegt worden war2, Don Carlos endgültig mit einem im Dezember 1865 abgeschlossenen Vertrag, der den Dezember 1866 zum Premierentermin bestimmte3.
Alternative hybrid MPI-MRI imaging system design: Superconductive field generator topology (2013)

It was shown that a hybrid MPI-MRI MFG can be realized as superconductive topology which renders the possibility of acquiring sequentially high resolution MPI and high quality MRI data with versatile soft tissue contrast of mice and rats in a single device. Furthermore, depending on the technically feasible and biologically tolerable drive field strength and/or desired field of view, the superconductive MFG can be realized in a broad range in terms of the SF gradient strength independently to the magnetic field strength of the MRI region. This can be realized by selecting a dedicated gradient enhancing coil current density. As this MFG topology depicts two separated imaging regions for MPI and MRI, respectively, the subject hast to be transported by a simple translational movement whereas the signal detector of each modality can be located closely to the imaging volume which allows in both modalities high sensitivity receiving coils.
Investigation by 360-MHz 1H-Nuclear-Magnetic-Resonance Spectroscopy and Methylation Analysis of the Single Glycan Chain of Chicken Ovotransferrin (1979)

The primary structure of two glycopeptides obtained by pronase digestion of chicken ovotransferrin has been investigated by 360-MHz proton nuclear magnetic resonance (NMR) spectroscopy and methylation analysis. The two glycopeptides differ in amino acid composition but contain the same carbohydrate moiety, viz: (formula: see text). Using the NMR data of some reference compounds the chemical shifts of the anomeric protons and mannose H-2 protons could be predicted with an accuracy of 0.01 ppm.
Machine Learning for Disease Classification: A Perspective (2022)

The daunting complexity of biological networks and the multifactorial nature of common disorders pose a significant challenge for traditional biomedical approaches to understanding and diagnosing disease. The growing volume of healthcare and “omics” data suggests machine learning techniques, which are well-adapted to finding patterns in large and complex datasets, may offer a powerful tool for improved disease classification. This review shares a perspective on the unique obstacles this field confronts, the tools available to deal with them, key precautions for the application of machine learning in healthcare, and an assessment of the future outlook for this field.
Ion acoustic waves in plasmas with light and heavy ions (1995)

The damping and dispersion of ion acoustic waves in a plasma with two ion species has been studied. We have investigated the transition from collisional to collisionless regimes using the Grad 13-moment approximation. Two branches of the ion dispersion relation have been found. The fast mode has a similar velocity as in plasmas with one ion species, but a much stronger damping rate due to the friction force between light and heavy ions. The effect of friction disappears when both ion species have the same charge-to-mass ratio. The heavy ions with a low degree of ionization strongly increase the magnitude of the fast ion acoustic wave damping. The slow ion acoustic wave is also found in the collisionless region, but this mode vanishes when its frequency approaches the ion-ion collision frequency. The stimulated Brillouin scattering from two ion species plasmas has been discussed in the context of recent experimental data. It is shown that stimulated Brillouin scattering reflectivity from the laser-produced plasma is dramatically increased when both ion species have the same charge-to-mass ratio.
Adding domain data to code profiling tools to debug workflow parallel execution (2018)

Computer simulations may be composed of several scientific programs chained in a coherent flow running in High Performance Computing and cloud environments. These runs may present different execution behavior associated to the parallel flow of data among programs. Gather insight into the parallel flow of data is important for several applications. The usual way of getting insight into code performance is by means of a code-profiler. Several parallel code-profiling tools already support performance analysis, such as Tuning and Analysis Utilities (TAU), or provide fine-grained performance statistics, e.g., System Activity Report (SAR). These tools are effective for code profiling, but are not connected to the concept of IO-intensive workflows. Analyzing the workflow execution with domain and performance data is important for users because they can identify anomalies, choose suitable machines to run their workflows, etc. This type of analysis may be performed by capturing execution data enriched with fine-grained domain data during the long-term run of a computer simulation. In this paper, we propose a monitoring data capture approach as a component that couples code-profiling tools to domain data from workflow executions. The goal is to profile and debug parallel executions of workflows through queries to a database that integrates performance, resource consumption, provenance, and domain data from simulation programs flow at runtime. We show how querying this database with domain-aware data at runtime allows to identify performance anomalies not detected by code-profiling tools. We evaluate our approach using the astronomy Montage workflow on a cluster environment and the SciPhy bioinformatics workflow on the Amazon cloud. In both cases computing time overhead imposed by our approach for gathering fine-grained domain, performance, and resource consumption data is negligible.
An Application of Boosting to Graph Classification (2004)

This paper presents an application of Boosting for classifying labeled graphs, general structures for modeling a number of real-world data, such as chemical compounds, natural language texts, and bio sequences. The proposal consists of i) decision stumps that use subgraph as features, and ii) a Boosting algorithm in which subgraph-based decision stumps are used as weak learners. We also discuss the relation between our algorithm and SVMs with convolution kernels. Two experiments using natural language data and chemical compounds show that our method achieves comparable or even better performance than SVMs with convolution kernels as well as improves the testing efficiency.
RACER Aero-acoustic Propeller Analysis and Design (2019)

This work investigates the lateral rotors of the RACER, Airbus Helicopters high-speed demonstrator. These lateral rotors also defined as propellers, provide anti-torque in hover and thrust in cruise flight. The first action was to better understand the complex aerodynamic interactions that the propellers undergo in hover and cruise flight. Then, in view of optimizing the aerodynamic and particularly the acoustic performance of the propellers, their design was adapted to exploit synergistically the installation effects. Optimization included airfoil optimization and blade design, taking into account structural and manufacturing constraints. By using a smart choice of multi-fidelity simulations, ONERA improved drastically the aerodynamic and acoustic performance of the RACER.
Evidence for transcript-specific epigenetic regulation of glucocorticoid-stimulated skeletal muscle 11β-hydroxysteroid dehydrogenase-1 activity in type 2 diabetes (2012)

Our findings of reduced methylation in the HSD11B1 P1 promoter in association with increased 11βHSD1 oxoreductase activity implicate complex multi-promoter epigenetic mechanisms in the regulation of 11βHSD1 levels in SkM.
Vol. 71, 2006 Chiral Phosphinooxazolines with a Pentamethylferrocene BackboneSynthesis and Use as Ligands in Asymmetric Catalysis. (2006)

ADVERTISEMENT RETURN TO ISSUEPREVAddition/CorrectionORIGINAL ARTICLEThis notice is a correctionVol. 71, 2006 Chiral Phosphinooxazolines with a Pentamethylferrocene BackboneSynthesis and Use as Ligands in Asymmetric Catalysis.Felix M. Geisler and Günter HelmchenCite this: J. Org. Chem. 2006, 71, 19, 7498Publication Date (Web):August 17, 2006Publication History Published online17 August 2006Published inissue 1 September 2006https://pubs.acs.org/doi/10.1021/jo0633137https://doi.org/10.1021/jo0633137correctionACS PublicationsCopyright © 2006 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 Views432Altmetric-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 (14 KB) Get e-Alertsclose Get e-Alerts
Lexical Tone Recognition with an Artificial Neural Network (2008)

The neural network can be used to evaluate the tone production of Mandarin Chinese speaking adults with human listener-like recognition accuracy. The tone 1-based normalization procedure improves the performance of the neural network to human listener-like accuracy. The success of our neural network in recognizing tones from multiple speakers supports its utility for evaluating tone production. Further testing of the neural network with hearing-impaired speakers might reveal its potential use for clinical evaluation of tone production.
Mutants of Escherichia coli hypersensitive to an antitumor protein: Neocarzinostatin. (1979)

A mutant of E. coli (MP2) sensitive to an antitumor antibiotic of high molecular weight and to proteinase was isolated and its characteristics were studied. The sensitivity of mutant MP2 to neocarzinostatin was greatly influenced by the environment in which MP2 was exposed to NCS. MP2 was also sensitive to a certain extent to some hydrolytic enzymes added exogenously such as pronase, DNase, and RNase. The sensitivity of the parental spheroplast to NCS and pronase was still lower than that of intact MP2. Proteinase-induced inactivation of ornithine transcarbamylase of the intact cells occurred only with MP2, but it did not with the parental cells, while it occurred with the spheroplasts of both strains. From the analysis of membrane proteins by polyacrylamide gel electrophoresis, MP2 seemed to have a considerable change in the outer and inner membranes. The mutations responsible for these characters located in two separate regions of chromosome; i.e., one near his locus and the other between the point of origin of Hfr AB312 and the marker lys.
Computing Possible and Necessary Equilibrium Actions (and Bipartisan Set\n Winners) (2021)

In many multiagent environments, a designer has some, but limited control\nover the game being played. In this paper, we formalize this by considering\nincompletely specified games, in which some entries of the payoff matrices can\nbe chosen from a specified set. We show that it is NP-hard for the designer to\nmake these choices optimally, even in zero-sum games. In fact, it is already\nintractable to decide whether a given action is (potentially or necessarily)\nplayed in equilibrium. We also consider incompletely specified symmetric games\nin which all completions are required to be symmetric. Here, hardness holds\neven in weak tournament games (symmetric zero-sum games whose entries are all\n-1, 0, or 1) and in tournament games (symmetric zero-sum games whose\nnon-diagonal entries are all -1 or 1). The latter result settles the complexity\nof the possible and necessary winner problems for a social-choice-theoretic\nsolution concept known as the bipartisan set. We finally give a mixed-integer\nlinear programming formulation for weak tournament games and evaluate it\nexperimentally.\n
Lichtabsorption und Struktur von Kristallverbindungen der Übergangsmetalle. I. Lichtabsorption und Stuktur der Hydroxide, Halogenide und Hydroxidhalogenide von Kobalt und Nickel (1963)

Abstract The absorption spectra of the following compounds have been measured: COX 2 , NIX, (X=Br, C1, F, OH); CoOHX, NiOHX (X=Br, Cl); Co 2 (OH) 3 X (X=Br, C1, F), and Ni 2 (OH) 3 X (X=C1, F). The observed absorption bands have been correlated with d ‐ d ‐transitions of the metal ion. The coordination polyhedron of these compounds is an octahedron or a distorted octahedron. It was found that the structural symmetry and the symmetry of the crystal field are not always identical. A moderate distortion of the octahedron does not show up in the absorption spectra. Only a strong deformation (e.g. CoOHX) causes an additional splitting of the electronic levels, whereas the spectra of the corresponding distorted Ni compounds match with those of the compounds with only one kind of ligands.