gebhart/patrepeval huggingface dataset:
Bulk and microscopic properties of surfactant-bridged hydrogels made from an amphiphilic graft copolymer (1991)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTBulk and microscopic properties of surfactant-bridged hydrogels made from an amphiphilic graft copolymerAbdulkadir J. Dualeh and Carol A. SteinerCite this: Macromolecules 1991, 24, 1, 112–116Publication Date (Print):January 1, 1991Publication History Published online1 May 2002Published inissue 1 January 1991https://pubs.acs.org/doi/10.1021/ma00001a018https://doi.org/10.1021/ma00001a018research-articleACS PublicationsRequest reuse permissionsArticle Views214Altmetric-Citations53LEARN 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 analysis of the power law parameters for viscosity of some engineering fluids (2017)

Knowledge and estimation of transport properties of fluids which are sensitive to temperature variation like viscosity are necessary in mass flow and heat transfer computation. In the present work, based on the use of econometric and statistical techniques for regression analysis and correlation tests, we propose an original equation modelling the relationship between the two parameters of viscosity power law equation. Empirical validation using data set of some pure fluids provided from the literature gives excellent statistical results which allow us to redefine the power law equation using only a single parameter. This result is important in fluids engineering since the validation of the proposed equation simplifies the estimation of viscous behaviour and the ensuing calculations by reducing the number of viscosity equation parameters and facilitating manipulations for fluids with low and moderate viscosity in engineering data which permits to estimate one unavailable parameter when the second one is available.
Novel 3D printing concept for the fabrication of time-controlled drug delivery systems (2018)

Abstract Three-dimensional (3D) printing has become a popular technique in many areas. One emerging field is the use of 3D printing for the development of 3D drug delivery systems (DDS) and drug-loaded medical devices. This article describes a novel concept for the fabrication of timecontrolled drug delivery systems based on stereolithography combined with inkjet printing. An inkjet printhead and an UV-LED light source have been integrated into an existing stereolithography system. Inkjet printing is used to selectively incorporate active pharmaceutical ingredients (API) during a stereolithographic 3D printing process. In an initial experimental study, poly (ethylene glycol) diacrylate (PEGDA) was used as polymer whereas 2-Hydroxy-4´-(2- hydroxyethoxy)-2-methylpropiophenone (Irgacure 2959) and Lithium phenyl-2,4,6-trimethylbenzoylphosphinate (LAP) were used as photoinitiators. Basic structures could be manufactured successfully by the new hybrid 3D printing system.
Handbook of deposition technologies for films and coatings (1994)

Deposition Technologies: An Overview * Plasmas in Deposition Processes * Surface Preparation For Film and Coating Deposition Processes * Evaporation: Processes, Bulk Microstructures And Mechanical Processes * Sputter Deposition Processes * Ion Plating * Chemical Vapor Deposition * Plasma-Enhanced Chemical Vapor Deposition * Plasma-Assisted Vapor Deposition Processes: Overview * Deposition from Aqueous Solutions: An Overview * Advanced Thermal Spray Deposition Techniques * Non-Elemental Characterization of Films and Coatings * Film Growth and Structure of PVD Deposits * Metallurgical Applications * Characterization of Thin Films And Coatings.
What Is the Test-Retest Reliability of Common Task-Functional MRI Measures? New Empirical Evidence and a Meta-Analysis (2020)

Identifying brain biomarkers of disease risk is a growing priority in neuroscience. The ability to identify meaningful biomarkers is limited by measurement reliability; unreliable measures are unsuitable for predicting clinical outcomes. Measuring brain activity using task functional MRI (fMRI) is a major focus of biomarker development; however, the reliability of task fMRI has not been systematically evaluated. We present converging evidence demonstrating poor reliability of task-fMRI measures. First, a meta-analysis of 90 experiments (<i>N</i> = 1,008) revealed poor overall reliability-mean intraclass correlation coefficient (ICC) = .397. Second, the test-retest reliabilities of activity in a priori regions of interest across 11 common fMRI tasks collected by the Human Connectome Project (<i>N</i> = 45) and the Dunedin Study (<i>N</i> = 20) were poor (ICCs = .067-.485). Collectively, these findings demonstrate that common task-fMRI measures are not currently suitable for brain biomarker discovery or for individual-differences research. We review how this state of affairs came to be and highlight avenues for improving task-fMRI reliability.
Coulometric determination of americium in acetonitrile solution of phosphoric acid (1986)

A procedure was developed for the coulometric determination of americium using the electrochemical couple Am(IV)-Am(III). An acetonitrile solution of 0.3-0.2 M H/sub 3/PO/sub 4/ was used as the electrolyte. Americium can be determined in the presence of large amounts of Cm, Pu, Ce, and other impurities; limit of detection approx. 10 ..mu..g.
Effect of B, C, N, and Ne ion implantation on the oxidation of polycrystalline Cu (1976)

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 H. M. Naguib, R. J. Kriegler, J. A. Davies, J. B. Mitchell; Effect of B, C, N, and Ne ion implantation on the oxidation of polycrystalline Cu. J. Vac. Sci. Technol. 1 January 1976; 13 (1): 396–400. https://doi.org/10.1116/1.568928 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 ContentAVS: Science & Technology of Materials Interfaces and ProcessingJournal of Vacuum Science and Technology Search Advanced Search |Citation Search
Photothermoelectric p–n Junction Photodetector with Intrinsic Broadband Polarimetry Based on Macroscopic Carbon Nanotube Films (2013)

Light polarization is used in the animal kingdom for communication, navigation, and enhanced scene interpretation and also plays an important role in astronomy, remote sensing, and military applications. To date, there have been few photodetector materials demonstrated to have direct polarization sensitivity, as is usually the case in nature. Here, we report the realization of a carbon-based broadband photodetector, where the polarimetry is intrinsic to the active photodetector material. The detector is based on p-n junctions formed between two macroscopic films of single-wall carbon nanotubes. A responsivity up to ~1 V/W was observed in these devices, with a broadband spectral response spanning the visible to the mid-infrared. This responsivity is about 35 times larger than previous devices without p-n junctions. A combination of experiment and theory is used to demonstrate the photothermoelectric origin of the responsivity and to discuss the performance attributes of such devices.
Synthetic peptides and domains of metallothionein for structure function studies: rabbit liver peptide MT-IIA 49–61 and lobster MT βN βC and βC→N domains (1999)

Mammalian and crustacean metallothioneins are complex proteins which form two independent domains with 3 or 4 metal ions (Cd+2 or Zn+2) in the native domains. Synthesis of the individual domains and even smaller fragments allows investigation of specific structure-function questions that can not be addressed easily with site-directed mutagenesis of the entire two-domain structure. Residues 49–61 of mammalian MTs, which include the only sequential four cysteines bound to the same metal ion (CdI), are a putative nucleation site. We have synthesized rabbit liver MT-II49–61 (Ac-Ile-Cys-Lys-Gly-Ala-Ser-Asp-Lys-Cys-Ser-Cys-Cys-Ala-COOH) and examined its binding to Cd+2 and other metal ions. Physiochemical studies (113Cd NMR, UV-vis, CD, ES-MS, LSIMS and chemical reactions) of Cd-Pep49–61 demonstrate that it exhibits properties consistent with a role in Cd-induced MT folding. To examine the possible influence of (1) the position of the cysteine residues and (2) the steric and electrostatic effects of neighboring amino acids on the folding and stability of MT clusters, the stable lob-ster βC and βN domains (each having 9 cysteines and binding 3 M+2 ions) and a modified domain βC→N (in which the cysteines of the C-terminal domain are relocated so they are spaced as in the N-terminal domain) have been synthesized and characterized. The synthetic native domains (Cd3-βC and Cd3-βN) show metal binding properties and reactivity similar to the holo-protein, but the modified Cd3-βC→N domain is unusually reactive and in the presence of Chelex aggregates to a Cd5(βC→N)2 dimer. These differences in structure and reactivity demonstrate that the requirements for formation of a stable beta cluster are more stringent than simply the sequential positions of the cysteines along the peptide chain and include specific interactions with neighboring amino acids.
Phase cooperation in oxidation catalysis. Structural studies of the iron antimonate–antimony oxide system (1985)

The compositions FeSb2O6 and FeSb5O12 of the two-phase FeSbO4–α-Sb2O4 system, an active and selective catalyst for the oxidation and ammoxidation of propylene, have been structurally characterized by Rietveld analysis of powder neutron-diffraction data. Results of the analysis indicate that the presence of Sb2O4 has no effect on the bulk structural parameters of FeSbO4. Specifically (a) the unit cell of FeSbO4 does not depend upon the presence of Sb2O4 or calcination temperature, (b) antimony atoms are not found in the intersticies of the coexisting iron antimonate and (c) the apparent Sb/Fe ratio is 1 in iron antimonate. Additionally, the Sb/Fe occupancy in the rutile FeSbO4 structure is random as no supercell reflections were observed. Results of scanning electron microscope and X-ray photoelectron spectroscopy experiments have been interpreted to show that Sb enrichment occurs on coprepared samples of the two-phase mixture. Based on this evidence and the lack of alteration of the bulk structures of both phases it is suggested that surface alteration in this two-phase system is the key to enhanced selective catalytic oxidation activity.
Mission Overview of Engineering Test Satellite, KITSAT-3 (2025)

SaTReC has developed and operated two micro-satellites, KITSAT-1 and 2 successfully. Since middle of 1994, the third satellite, KITSAT-3, has been being developed. Its main mission is to perform onorbit engineering tests of core technologies for high performance small satellite. This includes 3- axis stabilization, high speed data transmission and solar panel deployment. In addition to engineering tests, there are 3 payloads; Earth Observation System (EOS) using a linear CCD camera with 17m resolution and 3 spectral bands, Space Environment Scientific Experiment (SENSE) and KITSAT Data Collection System (KDCS). KITSAT-3 is planned to be launched in middle of 1997. This paper briefly describes its mission, system configuration and operation plans for payloads and bus system of KITSAT-3.
Platelet function in HIV plus dengue coinfection associates with reduced inflammation and milder dengue illness (2019)

HIV-infected subjects under virological control still exhibit a persistent proinflammatory state. Thus, chronic HIV infection changes the host homeostasis towards an adapted immune response that may affect the outcome of coinfections. However, little is known about the impact of HIV infection on inflammatory amplification and clinical presentation in dengue. Platelets have been shown to participate in immune response in dengue and HIV. We hypothesized that altered platelet responses in HIV-infected subjects may contribute to altered inflammatory milieu and disease progression in dengue. We prospectively followed a cohort of 84 DENV-infected patients of whom 29 were coinfected with HIV under virological control. We report that dengue and HIV coinfection progress with reduced inflammation and milder disease progression with lower risk of vascular instability. Even though the degree of thrombocytopenia and platelet activation were similar between dengue-infected and HIV plus dengue-coinfected patients, plasma levels of the platelet-derived chemokines RANTES/CCL5 and PF4/CXCL4 were lower in coinfection. Consistently, platelets from coinfected patients presented defective secretion of the stored-chemokines PF4 and RANTES, but not newly synthesized IL-1β, when cultured ex vivo. These data indicate that platelets from HIV-infected subjects release lower levels of chemokines during dengue illness, which may contribute to milder clinical presentation during coinfection.
A convex optimization approach to cancer treatment to address tumor heterogeneity and imperfect drug penetration in physiological compartments (2016)

The clinical success of targeted cancer therapies is limited by the emergence of drug resistance often due to pre-existing tumor genetic heterogeneity and acquired, therapy-induced resistance. Targeted therapies have varied success in addressing metastatic disease, due to their ability to penetrate certain physiological compartments. This paper considers an evolutionary cancer model that incorporates tumor cell growth, mutation and compartmental migration and leverages recent results on the optimal control of monotone and convex systems to synthesize switching treatment strategies where a single drug or a predetermined combination of drugs is used at a given time. The need for switching is motivated by clinical considerations such as the limited effectiveness of any single targeted therapy against multiple resistance mechanisms arising in a single patient and the inability to design drug combinations at effective doses due to toxicity constraints. An optimal and clinically feasible switching therapy is obtained as the solution of a convex optimization problem that exploits the diagonally-dominant structure of the model. We demonstrate that this method yields an effective strategy in mitigating disease evolution in the presence of imperfect drug penetration in two compartments on an experimentally identified model of anaplastic lymphoma kinase (ALK)-rearranged lung carcinoma.
Multiple keywords assignment to images using SVM (2008)

Use of semantic content is one of the important tasks in image analysis, which needs to be addressed for improving image retrieval effectiveness. We present a method to assign multiple keywords to image using SVMs. Images are divided into three-level regions called global image, semi-global images and sub-images. For each of them, color, texture and edge features are extracted. Then, the trained SVMs are employed and the results of classification are added based on the weight of the levels. The keywords are assigned according to the total of the results. Experiment results show the method is helpful to represent main contents of images.
Geometry Modeling for Unstructured Mesh Adaptation (2019)

The quantification and control of discretization error is critical to obtaining reliable simulation results. Adaptive mesh techniques have the potential to automate discretization error control, but have made limited impact on production analysis workflow. Recent progress has matured a number of independent implementations of flow solvers, error estimation methods, and anisotropic mesh adaptation mechanics. However, the poor integration of initial mesh generation and adaptive mesh mechanics to typical sources of geometry has hindered adoption of adaptive mesh techniques, where these geometries are often created in Mechanical Computer- Aided Design (MCAD) systems. The difficulty of this coupling is compounded by two factors: the inherent complexity of the model (e.g., large range of scales, bodies in proximity, details not required for analysis) and unintended geometry construction artifacts (e.g., translation, uneven parameterization, degeneracy, self-intersection, sliver faces, gaps, large tolerances be- tween topological elements, local high curvature to enforce continuity). Manual preparation of geometry is commonly employed to enable fixed-grid and adaptive-grid workflows by reducing the severity and negative impacts of these construction artifacts, but manual process interaction inhibits workflow automation. Techniques to permit the use of complex geometry models and reduce the impact of geometry construction artifacts on unstructured grid workflows are models from the AIAA Sonic Boom and High Lift Prediction are shown to demonstrate the utility of the current approach. \n
DIEFUSION OF DISPERSE DYES IN POLYVINYLACETATE: TEMPERATURE DEPENDENCE OF DIFFUSION COEFFICIENT (1978)

The temperature dependence of diffusion coefficients of three disperse dyes, p-nitro-aniline, p-amino-azobenzene, and C. I. Disperse Yellow 7, in polyvinylacetate has been investigated by means of a sublimative desorption method over the temperature range 60 to 150°C. Films used for desorption experiments were prepared by mixing the dyes and the polymer using a hot roll heated at 135°C. When the glass transition temperature of this polymer was taken as a reference temperature, the change in the diffusion coefficients with temperature could be expressed by the WLF relation having the constant Cgd2 which was quite close to the universal value of Cg2 (=51.6) in the free volume theory of viscosity. On the other hand, the diffusion parameter Bd obtained from the constant Cgd1 varied from 0.74 to 0.94, and was related linearly to the logarithmic rotational volumes of these dye molecules.
Enhanced Recovery after Surgery: Benefits for the Fetal Surgery Patient (2021)

Establishing an ERAS protocol for fetoscopic in utero repair of NTDs approach is feasible with the advantages of decreased postoperative LOS, reduced oxygen requirements, lower duration of magnesium sulfate infusion, and facilitation of earlier oral intake without compromising the pain scores.
Detectability of interaural phase shift as a function of frequency (1982)

Previous research [S. M. Abel and H. Kunov, J. Acoust. Soc. Am. Suppl. 1 69, S63 (1981)] indicated that the envelope cue contributed by rise/decay (R/D) of sinusoidal signals had little effect above 1500 Hz but affected lateralization below 1250 Hz. The relationship between R/D and frequency was studied in detail. Binaural signals were presented 180° out of phase, and the entire signal was delayed randomly to the left or right ear. Plots of P(C) versus the reciprocal of R/D on normal probability paper indicate a linear relationship between 20 and 700 ms. The slopes show that the use of the envelope cue peaks at approximately 1000 Hz, falling to near 0 before 2000 Hz. In a subsequent experiment, using R/D sufficiently long (700 ms) to eliminate the envelope cue, the effect of frequency on phase detection was examined, especially between 1200 and 1700 Hz. Psychometric functions were determined for interaural phase shifts (θ) close to 0° and 180°. At 1000 Hz, their slopes were approximately 8 %/deg and −2 %/deg, respectively, both falling linearly to 0 around 1600 Hz. The data from these two experiments provide quantification of the use of envelope and phase cues with frequency.
Accuracy of Glycemic Measurements in the Critically Ill (2008)

In critically ill adult patients, measurement of blood glucose using arterial samples is recommended. Using arterial blood, the Abbott FreeStyle blood glucose meter and the point-of-care blood gas analyzer (Bayer Chiron 865) were shown to be highly accurate instruments to measure arterial blood glucose.
Building the Safety Case for UAS Operations in Support of Natural Disaster Response (2014)

A framework supporting the systematic development of cases for Unmanned Aircraft System (UAS) operations in a broad range of civil and commercial applications is presented. The case study application is the use of UAS for disaster response. In those States where regulations do not preclude UAS operations altogether, approvals for UAS operations can be granted on a case-by-case basis contingent on the provision of a case acceptable to the relevant National Airworthiness Authority (NAA). A case for UAS operations must show how the risks associated with the hazards have been managed to an acceptable level. The foundational components necessary for structuring and assessing these cases have not yet been proposed. Barrier-bow-tie models are used in this paper to structure the case for the two primary hazards of 1) a ground impact, and 2) a Mid-Air Collision (MAC). The models establish the set of Risk Control Variables (RCVs) available to reduce the risk. For the ground-impact risk model, seven RCVs are identified which in combination govern the probability of an accident. Similarly, ten RCVs are identified within the MAC model. The effectiveness of the RCVs and how they can implemented in terms of processes, policies, devices, practices, or other actions for each of the case-study applications are discussed. The framework presented can provide for the more systematic and consistent regulation of UAS through a safety target approach.
Electron transport through thin layers of alkali halides (1970)

The mean electron attenuation length in layers of some alkali halides was determined by measuring the photoelectron absorption coefficient. The results obtained are compared with theoretical predictions for the mechanism of electron scattering by phonons. Die mittlere Reichweite von Elektronen wird in Schichten einiger Alkalihalogenide durch Messung des Photoelektronen-Absorptionskoeffizienten bestimmt. Die erhaltenen Ergebnisse werden mit theoretischen Voraussagen über die Elektronenstreuung an Phononen verglichen.