gebhart/patrepeval huggingface dataset:
Shaping Indirect Flight Control System Properties for General Aviation Aircraft (2010)

This paper describes calculations and computer simulations concerning handling qualities of general aviation aircraft equipped with an indirect (fly-by-wire) control system. The main idea of this proposal is shaping small aircraft dynamic characteristics in a way that enables all general aviation aircraft to exhibit similar user-friendly properties from the pilot’s point of view. The natural solution of this problem is modifying aircraft dynamic properties to comply with the “ideal model” of a safe and easily controllable airplane. We can improve the handling qualities of an aircraft using the indirect flight control system. In this paper, the model following method was used for controller synthesis, with the purpose of obtaining qualitatively new handling properties and simplifying the control system for pilots with limited professional training. However, a control system designer has to assume responsibility for proper functioning of complex flight control systems. The properties of the optimal controller were calculated applying the indirect (implicit) model following method. In particular, the modified version based on the computer simulations was used. Model following method allows shaping properties of the flight control systems that satisfactorily approximate those of the desired model of controlled aircraft. In this way, the expected handling qualities can be reached.
Advances in the Treatment of Organic Erectile Dysfunction (1997)

Nonsurgical measures have replaced penile prostheses as first-line treatment. In addition to intracavernous injection therapy and vacuum/constriction devices, options now include urethral suppositories.
Adenosine Release and Uptake in Cerebellar Granule Neurons Both Occur via an Equilibrative Nucleoside Carrier that Is Modulated by G Proteins (1996)

These is debate about the mechanisms mediating adenosine release from neurons. In this study, the release of adenosine evoked by depolarizing cultured cerebellar granule neurons with 50 mM K+ was inhibited by 49 +/- 7% in Ca2+-free medium. The remaining release was blocked by dipyridamole (IC50 = 6.4 x 10(-8) M) and nitrobenzylthioinosine (IC50 = 3.6 x 10(-8) M), inhibitors of adenosine uptake. Ca2+-dependent release was reduced by 78 +/- 9% following a 21-h pretreatment of the cells with pertussis toxin, which ADP-ribosylates Gi/Go G proteins, thereby preventing their dissociation. The nucleoside transporter-mediated component of K+-induced adenosine release also was inhibited by 62 +/- 8% by pertussis toxin and was potentiated by 78 +/- 11% following cholera toxin treatment, which permanently activates Gs. Uptake of [3H]adenosine into cultured cerebellar granule neurons over a 10-min period was not dependent on extracellular Na+ but was reduced by dipyridamole (IC50 = 3.2 x 10(-8) M) and nitrobenzylthioinosine (IC50 = 2.6 x 10(-8) M). Thus, adenosine uptake likely occurs via the same transporter mediating Ca2+-independent adenosine release. Adenosine uptake was potentiated by cholera toxin pretreatment (152 +/- 15% of control), but pertussis toxin had no statistically significant effect. It is possible that Gs, Gi/Go, or free Gbetagamma dimer modulate the equilibrative, inhibitor-sensitive nucleoside carrier to enhance adenosine transport.
Log-based directory resolution in the Coda file system (2002)

A key problem in optimistic replication, namely, using semantic knowledge of objects to resolve concurrent updates from multiple partitions, is addressed. The authors describe how the Coda file system resolves partitioned updates to directories. The central result is that logging of updates is a simple yet efficient and powerful technique for directory resolution in Unix file systems. Measurements show that the time for resolution is typically less than 10% of the time for performing the original set of partitioned updates. Analysis based on file traces indicates that a log size of 2 MB per hour of partition should be ample for typical services.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Evaluation of head pose features for stress detection and classification (2018)

This paper investigates variations in head pose features in response to specific stressors. A proper experiment consisting of neutral and stressful states was performed aiming to cover different types of stress affect. Then, features related to head movements and pose were computationally estimated and analyzed. Towards this direction, facial landmarks were fitted using Active Appearance Models (AAM). Using the 2D AAM facial landmarks, a 3D head pose model was estimated revealing head inclinations. Results indicate that specific stress conditions increase head mobility and mobility velocity, in both translational and rotational features. Even though stress modulates head movements and velocities, the most prominent increases are presented during tasks that include participant's speech. The degree and the intensity of the interaction effect between speech and stress should be investigated in more detail. The analysis reports that specific head pose features can be significant stress indicators that could contribute among other facial cues in reliable stress recognition.
Extraction of Am(III) and Eu(III) from Nitrate Solution with Purified Cyanex 301 (1996)

ABSTRACT The extraction of tracer amounts of Am(III) and Eu(III) from nitrate medium with purified Cyanex 301™ in kerosene was studied. The slopes of logD/pH dependencies for Am and Eu are close to 3 and the logD/extractant concentration dependencies for Am and Eu are close to 2, respectively. The calculated extraction constants are 10−7.85 for Am and 10−11.62 for Eu at 25°C. Both the extraction constants and the separation factor of Am/Eu decrease with increasing extraction temperature. The extraction enthalpies of Am and Eu are 18.10 kJmol−1 and 43.65 kJmol−1, respectively. This extraction system provides a high selectivity for Am(III) over Eu(III) (at 25°C, separation factor SF=5.9×l03) which arises from greater covalent bonding tendency between sulfur donor atom and Am(III) in comparison with Eu(III).
Determination of Traces of Glycols by Gas Chromatography (1964)

Journal Article Determination of Traces of Glycols by Gas Chromatography Get access Abram Davis, Abram Davis Search for other works by this author on: Oxford Academic PubMed Google Scholar Arthur Roaldi, Arthur Roaldi Search for other works by this author on: Oxford Academic PubMed Google Scholar Lewis E. Tufts Lewis E. Tufts Hooker Chemical Corporation, Niagara Falls, New York Search for other works by this author on: Oxford Academic PubMed Google Scholar Journal of Chromatographic Science, Volume 2, Issue 9, September 1964, Pages 306–308, https://doi.org/10.1093/chromsci/2.9.306 Published: 01 September 1964 Article history Received: 05 June 1964 Published: 01 September 1964
Baseband-pulse-antenna techniques (1994)

Frequency-domain concepts and terminology are commonly used to describe antennas. These are very satisfactory for a CW or narrowband application. However, their validity is questionable for an instantaneous wideband excitation. Time-domain and/or wideband analyses can provide more insight and more effective terminology. Two approaches for this time-domain analysis have been described. The more complete one uses the transfer function, a function which describes the amplitude and phase of the response over the entire frequency spectrum. While this is useful for evaluating the overall response of a system, it may not be practical when trying to characterize an antenna's performance, and trying to compare it with that of other antennas. A more convenient and descriptive approach uses time-domain parameters, such as efficiency, energy pattern, receiving area, etc., with the constraint that the reference or excitation signal is known. The utility of both approaches, for describing the time-domain performance, was demonstrated for antennas which are both small and large, in comparison to the length of the reference signal. The approaches have also been used for other antennas, such as arrays, where they also could be applied to measure the effects of mutual impedance, for a wide-bandwidth signal. The time-domain ground-plane antenna range, on which these measurements were made, is suitable for symmetric antennas. However, the approach can be readily adapted to asymmetric antennas, without a ground plane, by using suitable reference antennas.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Neue Anwendungen für ionische Flüssigkeiten in der Technik und Medizintechnik (2013)

Es wurden zunächst die Toxizität und der pH-Wert ionischer Flüssigkeiten untersucht. Cetylpyridiniumsalicylat löst den zu beschichtenden Wirkstoff Paclitaxel gut auf und ermöglicht eine gleichmäßige Beschichtung. Die IL zeigt zudem außergewöhnliches Verhalten beim Schmelzen, und die wässrige Lösung besitzt thixotrope Eigenschaften. Desweiteren wurde mit Hilfe von ILs die Verbesserung eines Verfahrens zur Wärmebehandlung von Metallen untersucht.
Determination of Decarborane (1955)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDetermination of DecarboraneW. H. Hill and M. S. JohnstonCite this: Anal. Chem. 1955, 27, 8, 1300–1305Publication Date (Print):August 1, 1955Publication History Published online1 May 2002Published inissue 1 August 1955https://pubs.acs.org/doi/10.1021/ac60104a027https://doi.org/10.1021/ac60104a027research-articleACS PublicationsRequest reuse permissionsArticle Views53Altmetric-Citations12LEARN 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
The photodynamic effect of chlorpromazine, promazine, and hematoporphyrin on lens protein. (1984)

Calf lens protein was irradiated with near ultraviolet (UV) light in the presence of the drugs chlorpromazine, promazine, and hematoporphyrin. It then was analyzed by SDS-polyacrylamide gel electrophoresis and amino acid analysis. Marked increases in protein photopolymerization (other than S-S bond formation) and histidine destruction were noted in the presence of these drugs. In all cases, these effects were reduced in the presence of a singlet oxygen quencher, thus suggesting that these photodynamic effects are due, at least in part, to a Type II mechanism.
Functionalization of single-walled carbon nanotubes: Chemistry and characterization (2017)

Abstract This article examines the chemical functionalization and structural alteration of single-walled carbon nanotubes (SWCNTs). It describes the covalent functionalization of the SWCNT framework that is the covalent attachment of functional entities onto the CNT scaffold. In particular, it considers the chemical modification and reactivity of SWCNTs in the context of the reactivity of graphite and fullerenes. It also discusses the defect and sidewall functionalization of SWCNTs, along with various techniques used in the characterization ofSWCNTs upon functionalization, namely: thermogravimetric analysis, spectroscopic techniques such as UV-Vis-NIR spectroscopy and Raman spectroscopy, and microscopic techniques like transmission electron microscopy, atomic force microscopy and scanning tunnelling microscopy.
This Issue (2011)

This Issue George Brosi The United States Library of Congress website still notes that its classification, “Mountain People” is a “change from ‘Mountain Whites.’” Many have worked diligently to overcome this bias. On the forefront of efforts to recognize the cultural and racial diversity of our region is Frank X Walker, this issue’s featured author. He coined the term “Affrilachian,” to refer to the African-Americans of this area, and our biographical sketch of Walker is written by his fellow “Affrilachian Poet,” Bianca Spriggs. Her close associate, Angel Clark, is the featured photographer for this issue. We include two insightful essays about Walker’s poetry, one by Susan Virginia Mead and the other by Leah Bachmann, as well as an enjoyable anecdotal piece by Jim Minick. Dr. William H Turner’s essay puts Frank X Walker’s contribution in the context of previous efforts to move beyond “Mountain Whites.” We are proud that we have four outstanding short stories in this issue by a wide range of authors from one of the most widely published regional writers - Fred Chappell - to Sandra Van Pelt Hogue, a West Virginia coal miner’s daughter and retired psychotherapist whose very first published story appears here. Another of our stories is by a thirty-four year veteran of the coal mines, Gordon Lloyd Swartz III. Brian Hyer works as a professor. Having that many powerful stories hasn’t left much room for non-fiction, but we are happy to share with you the announcement of the upcoming International Ethnobotony Conference to be held next June in Frostburg, Maryland. Our poets represent a wide range as well, from MFA student Staci R. Schoenfeld to Jesse Graves, who has only taught a few years at East Tennessee State, to veteran teacher, Susan O’Dell Underwood, to the seasoned and well-published Michael Chitwood, a professor at the University of North Carolina, Chapel Hill to Maurice Manning, a finalist for the Pulitzer Prize in Poetry. Sherri L. Wright is an editor, and Wayne Caldwell works for an interior decoration firm but is best known as a novelist. Amy Clark, a professor at the University of Virginia at Wise, reviews a Ballad Novel by Sharyn McCrumb, The Devil Amongst the Lawyers, which is set in the county where she lives and teaches. [End Page 10] Copyright © 2011 Berea College
Geohelminth infections: a review of the role of IgE and assessment of potential risks of anti‐IgE treatment (2008)

Geohelminth infections are major parasitic infections with a worldwide distribution. Immunoglobulin E (IgE) is considered to play a central role in protective immunity against these parasites although the evidence from experimental animal models infected with helminth parasites and treated with anti-IgE antibodies and from observational studies in human populations of the immunologic correlates of protective immunity against helminths do not support a critical role for IgE in mediating protection against helminths. Anti-IgE treatment of human allergic disorders using a humanized monoclonal IgE antibody (omalizumab, Xolair) has been approved for clinical use in the USA and Europe and there is concern that this treatment may be associated with increased morbidity in populations exposed to helminth infections. A recently published randomized controlled trial investigating the risk of geohelminth infections in allergic patients receiving omalizumab in Brazil has provided some evidence that omalizumab may not be associated with increased morbidity attributable to these parasites. This review examines the evidence for a role of IgE in protective immunity against helminth parasites, discusses the findings of the randomized controlled trial, assesses the potential risks and provides recommendations for anti-IgE treatment in groups of allergic patients with different exposure risks for helminth infections.
Extended DLNA protocol: Sharing protected pay TV contents (2010)

DLNA can be considered as a good candidate for sharing protected contents among authorized devices. There is a important penetration of DLNA certified devices, and it offers link protection. We identify problems on DLNA's link protection, DTCP-IP, and we propose to improve the authentication and key derivation mechanism. DLNA sharing can be extended to include pre and post acquisition protection content at the price of inexpensive descrambler.
A statistical approach for trajectory analysis and motion segmentation for freely moving cameras (2015)

This paper examines the problem of motion segmentation by analyzing trajectories with statistical approach. We propose a statistical framework for motion segmentation, which makes no assumption on camera motion, camera model, number of moving objects and scene complexity. Long range trajectories are traced across frames and clustered by DTW metric. Various descriptors can be used to construct a weighted neighbor graph for the resulted clusters, following by spectral clustering to retrieve trajectories associated with motion. This framework is highly extensive because different descriptors can be combined into the bag-of-features, to build a more accurate neighbor graph to achieve better result. The algorithm is evaluated mainly with the Hopkins 155 database.
Analysis of the Indices for Economic Effects through Informatization According to Industry Types (2001)

The economic effects of informatization are differently occurred according to industry types. Thus an evaluation methodology which reflects the industry type characteristics of informatization is needed. In this paper, we develop and analyze the indices for evaluating economic effects through informatization according to industry types, such as manufacturing, construction, financial services and marketing services. The factors related to performance of enterprise informatization can be defined as cost factors, effect factors, risk factors and influence factors. Effect factors are defined as quantitative or qualitative performance of informatization and classified into operational effect factors and strategic effect factors. The influence factor is defined as characteristics of informatization for industry types, that is, value chain of business and business products or services. Economic effect indices are classified according to the activity of business value chain. Economic effects indices of this research can be expected to play a role of general and standardized factors for economic evaluation of industry informatization.
Comparison of 2‐methoxyestradiol‐induced, docetaxel‐induced, and paclitaxel‐induced apoptosis in hepatoma cells and its correlation with reactive oxygen species (2000)

BACKGROUND Previously, the authors observed that paclitaxel treatment of hepatoma cells resulted in differential cytotoxicity. Whether other antimicrotubule agents (docetaxel and 2-methoxyestradiol) are more effective than paclitaxel is not clear. Moreover, whether the modulation of reactive oxygen species (ROS) is involved in the drug-induced growth inhibition of hepatoma cells is not known. METHODS The authors examined the effects of 2-methoxyestradiol, paclitaxel, and docetaxel on HepG2, Hep3B, HA22T/VGH, and Hepa1-6 hepatoma cell lines. The parameters examined included cell viability, cell membrane permeability, cell cycle distribution, DNA fragmentation, and ROS generation. RESULTS Docetaxel and paclitaxel inhibited the growth of hepatoma cells at submicromolar concentrations, whereas that of 2-methoxyestradiol was within a micromolar range. This drug-induced growth inhibition was cell cycle dependent. 2-Methoxyestradiol-treated (10–50 μM) cells resulted in G2/M block prior to apoptosis. High dose (0.1 μM) docetaxel- and paclitaxel-treated cells resulted in a G2/M arrest followed by generation of polyploidy or apoptosis; however, low dose (0.01 μM) treatment induced apoptosis without G2/M arrest. The low dose effect was more significant in docetaxel-treated cells than in paclitaxel-treated cells. Although these antimicrotubule agents increased the formation of ROS, antioxidant treatment did not block drug-induced cell cycle and growth inhibition effects. CONCLUSIONS The current results suggest that the growth inhibition of hepatoma cells induced by 2-methoxyestradiol, paclitaxel, and docetaxel was mediated through G2/M-phase arrest, caspase activation, and DNA fragmentation. The drug-induced apoptosis was independent of ROS formation. Docetaxel was more effective than paclitaxel in killing hepatoma cells. The potential of using 2-methoxyestradiol and docetaxel for the treatment of patients with hepatoma is worthy of further study. Cancer 2000;89:983–94. © 2000 American Cancer Society.
Sulfonyl Fluorides as Inhibitors of Esterases. II. Formation and Reactions of Phenylmethanesulfonyl α-Chymotrypsin<sup>*</sup> (1964)

ADVERTISEMENT RETURN TO ISSUEPREVarticleNEXTSulfonyl Fluorides as Inhibitors of Esterases. II. Formation and Reactions of Phenylmethanesulfonyl α-Chymotrypsin*Allen M. Gold and David FahrneyCite this: Biochemistry 1964, 3, 6, 783–791Publication Date (Print):June 1, 1964Publication History Published online1 June 1964Published inissue 1 June 1964https://pubs.acs.org/doi/10.1021/bi00894a009https://doi.org/10.1021/bi00894a009research-articleACS PublicationsRequest reuse permissionsArticle Views989Altmetric-Citations240LEARN 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
Image scanning through the acousto−optical effect produced by acoustic surface waves (1975)

The scanning of a transparency is done by letting a collimated light wave front illuminate it and be diffracted by very short pulses of ultrasonic surface waves. Detection of diffracted light follows a time dependence that equals the transparency brightness along each line that is successively scanned. 94−MHz wave trains, about 10 wavelengths long, give a potential number of resolved spots per second almost equal to 107. Interaction geometry by back−surface reflection has been used, which greatly enhances the diffraction efficiency and yet retains the large acousto−optical bandwidth proper to surface waves.
Stereoscopic imaging camera with simultaneous vergence and focus control (2004)

We present the development of a parallel-axis stereoscopic imaging camera (PASIC) for teleoperation and depth measurement. To reduce the vergence focus decoupling problem, which could cause cybersickness, we design a mechanism to control the vergence and the focus of the camera simultaneously. We analyze the relationship between parallel and orthogonal motions of the camera lens system with respect to the image plane. Under the condition that the lateral disparity in stereo images remains constant, the parallel motion causing vergence and the vertical motion causing focus show linear relationship. The camera is calibrated to a reference distance, and the depth to an object is computed by a triangulation technique and a calibration lookup table. We analyze the accuracy of depth measurement with the consideration of radial distortion. Then the calibration table is refined accordingly.