gebhart/patrepeval huggingface dataset:
ChemInform Abstract: Addition Reactions of Cyclic s‐trans‐Enaminones with Grignard Reagents. (1997)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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.
Small internal antennas for indoor UMTS base station with WLAN access point (2006)

In this paper the use of small internal mobile terminal type of antennas in a typically-sized indoor mobile communication base station is studied. The covered radio systems are 2 GHz UMTS and 2.45 GHz WLAN with diversity path for both thereby leading to four antenna elements placed at the corners of the printed wiring board (PWB). Separate solutions based on a planar loop and a PWB IFA -type of antenna elements are presented with optimal antenna arrangements and orientations. Simulated impedance bandwidths, isolations, radiation properties and estimated envelope correlations are shown. Based on the results, sufficient performances are achievable with both antenna types leading to at least 15 dB isolations and correlations less than 0.1 between the antenna elements. The proposed approach thereby offers a lightweight and a low-cost solution for the application, although the resulting radiation patterns are more irregular compared with a typical sleeve-dipole solution.
Enhanced radical-scavenging activity of naturally-oriented artepillin C derivatives (2007)

More than two-fold augmentation in the radical-scavenging activity of artepillin C could be achieved via altering the O–H bond dissociation enthalpy of artepillin C by means of structural modifications.
Self-Assembled Palmitoyl-Glycine-Histidine as a Permeation Enhancer for Transdermal Delivery (2021)

The stratum corneum (SC) covers the outer surface of the skin and prevents the permeation of unwanted materials; however, the SC barrier also inhibits the desired permeation of active pharmaceutical ingredients (APIs). Therefore, the development of a novel method to enhance the permeation of APIs through the skin has been the focus of significant attention. Palmitoyl-glycine-histidine (Pal-GH)-comprising palmitic acid, glycine, and histidine-can be co-assembled with various additives to form a thixotropic hydrogel. Self-assembled Pal-GH enhances the permeation of ivermectin through the skin; however, the permeation mechanism is unclear and has not yet been discussed in detail. In the present study, the self-assembled structure of Pal-GH was analyzed using X-rays and infrared, and its permeation enhancement effect was verified. There was a correlation between the amount of Pal-GH in the skin and permeation enhancement, suggesting the involvement of the Pal-GH molecule. The presence of Pal-GH in the skin was confirmed by liquid chromatography-mass spectrometry and fluorescence labeling (labeling with Thioflavin T, a fluorescent dye that responds to β-sheets). The self-assembled Pal-GH permeated the SC without disrupting its organization. However, the structure of the Pal-GH caused changes to the lipid organization of the SC. The findings indicated that self-assembled Pal-GH is an effective permeation enhancer for transdermal delivery and does not induce skin irritation.
A Comparison of Near-Infrared Diode Laser Techniques for Airborne Hygrometry (1998)

High-frequency wavelength modulation spectroscopy and dual beam absorption noise canceler methods are compared for near-infrared laser detection of moisture at levels relevant to airborne hygrometry. Both techniques exhibit sensitivities exceeding −85°C frost point, with subsecond time response. The application of these techniques to airborne hygrometric instrumentation is discussed.
Abstract 19690: Towards the Exhaustive Analysis of Left Ventricle Dysfunctions in Ischemic Cardiomyopathy: Integrating Mr-derived Wall Kinetics, Scar Transmurality and Fluid Dynamics (2017)

Introduction: Post-ischemic dilated cardiomyopathy (DCM) is a complex clinical condition characterized by adverse left ventricular (LV) remodeling with impairment of systolic and diastolic function. Standard analyses of DCM include the assessment of LV function through CINE and late gadolinium enhancement (LGE) MRI. Only recently, 4D Flow was proposed to characterize LV function measuring in vivo 3D intraventricular flow. Hypothesis: Integrating CINE, LGE and 4D Flow analysis to comprehensively characterize the pathophysiology of post-ischemic DCM Methods: LV 3D geometry and volumes were obtained from CINE images. Location, extent and transmurality of scar tissue were quantified from LGE images (Fig.1a). LV hemodynamics were described from 4D Flow in terms of Wall Shear Stress (WSS) distribution on each of the 16 segments of the LV wall (Fig.1b) and diastolic vortices (Fig.1c).Study population included 19 patients (all males, age=66±10 years) with post-ischemic DCM and severe LV dysfunction (EF<35%). MRI ...
ChemInform Abstract: REACTIONS OF HETEROCYCLES WITH THIOPHOSGENE. PART VII. REACTIONS OF BENZOXAZOLE, BENZOTHIAZOLE, AND BENZIMIDAZOLE DERIVATIVES (1979)

Abstract Die Reaktion der Benzoheterocyclen (I) bzw. (V) mit Thiophosgen (II) in Gegenwart einer Base verläuft unter Ringspaltung zu den orthosubstituierten Phenylisothiocyanaten (III) bzw. (VI); aus (Ia) wird auch das tetracyclische Thion (IV) (3% Ausb.) gebildet.
A Uniquely Accessible Route to the Diastereoselective Synthesis of Azetine Derivatives (2004)

In the diastereoselective additions of chlorotitanium enolate of Npropionylthiazolidine-2-thione (2) to nitriles via the corresponding Nmetalloaldimines (Al, B, Zr as metals), thiazolidine-2-thioneazetines (3) are preferentially formed over the dihydropyrimidinones (4), with the ratios of compounds (3/4) ranging from 5:1 to 17:1 (for R = phenyl, 1-naphthyl and 2thienyl).Recently, our research group reported the thiazolidine-2-thione directed diastereoselective additions of
Low-cost high temporal resolution diffuse correlation spectroscopy (Conference Presentation) (2019)

Diffuse correlation spectroscopy (DCS) is an optical method for non-invasive measurements of blood flow in deep tissue microvasculature, such as the brain, without the need for tracers or ionizing radiation. The technique relies on determining temporal autocorrelations of light intensity fluctuations which arise due to time changing speckle patterns of moving scatterers when illuminated by a long coherence length laser. Measurements of blood flow using DCS have extensively been validated and have found some clinical translation already. High temporal resolution by fast sampling of the autocorrelation curves has recently been achieved by software based correlators. Here we demonstrate a new software correlator approach which uses components that are an order of magnitude cheaper than current approaches. We will present on the instrument design, as well as measurements of pulsatile blood flow on healthy volunteers. We will show blood flow measurements with a signal bandwidth of 50Hz and present on signal to noise ratios (SNR) of extracted pulse waveforms as a function of sampling rate. We will show how using an EKG based timing of the signal for averaging increases the fidelity of extracting the blood flow waveform even in low SNR environments. We will further present results of the pulsatile waveforms and the latency of the dicrotic notch as affected by posture changes in healthy volunteers.
Introduction (1997)

Introductions| October 30 2008 Introduction Subject Area: Nephrology Claudio Ronco; Claudio Ronco Search for other works by this author on: This Site PubMed Google Scholar Antonio Artigas; Antonio Artigas Search for other works by this author on: This Site PubMed Google Scholar Rinaldo Bellomo Rinaldo Bellomo Search for other works by this author on: This Site PubMed Google Scholar Blood Purif (1997) 15 (4-6): 217–218. https://doi.org/10.1159/000170338 Article history Published Online: October 30 2008 Content Tools Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Cite Icon Cite Search Site Citation Claudio Ronco, Antonio Artigas, Rinaldo Bellomo; Introduction. Blood Purif 31 December 1997; 15 (4-6): 217–218. https://doi.org/10.1159/000170338 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 ContentAll JournalsBlood Purification Search Advanced Search This content is only available via PDF. 1997Copyright / Drug Dosage / DisclaimerCopyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher.Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug.Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements. Article PDF first page preview Close Modal You do not currently have access to this content.
Enacting protocols by commitment concession (2007)

Commitment protocols formalize interactions among autonomous, heterogeneous agents, leaving the agents' local policies unspecified. This paper studies the problem of agents enacting commitment protocols, which inherently requires that their policies cohere with the given protocols. Specifically, in many important settings, if agents incautiously create and discharge commitments, they can expose themselves to certain risk; conversely, if the agents are (excessively) cautious, a protocol enactment may deadlock. This paper adopts the well-known idea of monotonic concession, but specializes and enhances it with the particular features of commitments. Specifically, this paper formulates inference rules for commitment concession that respect the nature of commitments. Next, it shows how commitments can be systematically revised as the agents incrementally engage each other in enacting their protocol. This paper demonstrates how such rules can be applied in practice, and identifies conditions under which progress and termination of protocol enactment can be guaranteed.
Temporal Characteristics of Audiovisual Information Processing (2008)

In complex natural environments, auditory and visual information often have to be processed simultaneously. Previous functional magnetic resonance imaging (fMRI) studies focused on the spatial localization of brain areas involved in audiovisual (AV) information processing, but the temporal characteristics of AV information flow in these regions remained unclear. In this study, we used fMRI and a novel information-theoretic approach to study the flow of AV sensory information. Subjects passively perceived sounds and images of objects presented either alone or simultaneously. Applying the measure of mutual information, we computed for each voxel the latency in which the blood oxygenation level-dependent signal had the highest information content about the preceding stimulus. The results indicate that, after AV stimulation, the earliest informative activity occurs in right Heschl's gyrus, left primary visual cortex, and the posterior portion of the superior temporal gyrus, which is known as a region involved in object-related AV integration. Informative activity in the anterior portion of superior temporal gyrus, middle temporal gyrus, right occipital cortex, and inferior frontal cortex was found at a later latency. Moreover, AV presentation resulted in shorter latencies in multiple cortical areas compared with isolated auditory or visual presentation. The results provide evidence for bottom-up processing from primary sensory areas into higher association areas during AV integration in humans and suggest that AV presentation shortens processing time in early sensory cortices.
(/sup 3/H)-SK and F 101926, a novel radiolabeled vasopressin antagonist (1986)

Vasopressin receptor binding studies have been carried out with radiolabeled agonists. They have labeled SK and F 101926 (desGlyd(CH2)5D-Tyr(Et)VAVP), a potent antagonist of vascular (V1) and renal (V2) vasopressin receptors, with (/sup 3/H)-Phe (37 Ci/mmol). They studied V1 receptors of cultured smooth muscle cells of rat aorta (A-10) and liver, and V2 receptors of pig kidney. (/sup 3/H)-SK and F 101926 binding to plasma membranes of A-10 cells was specific (non-specific binding with 10 ..mu..M AVP), saturable, and of high affinity. At 0.4nM, the specific binding was 50%. A linear Scatchard plot indicated one antagonist affinity (KD = 0.4nM; Bmax = 100-150 fmol/10/sup 6/ cells). In contrast, the Scatchard plot of (/sup 3/H)-AVP binding was curvilinear. Specific (/sup 3/H)-SK and F 101926 binding was inhibited by AVP and vasopressin antagonists d(CH2)5Tyr(Me)AVP > d(CH2)5DTyr(Et)VAVP > d(CH2)5Tyr(Et)VAVP > d(CH2)5D-IleVAVP. The rank orders of the antagonists for vasopressin receptors of rat liver and A-10 cells determined with (/sup 3/H)-SK and F 101926 and (/sup 3/H)-AVP were the same. GppNHp did not affect (/sup 3/H)-SK and F 101926 binding. In competition experiments with cell and liver membranes, GppNHp decreased the affinity of AVP but not of the antagonist d(CH2)5Tyr(Me)AVP. (/sup 3/H)-SK and F 101926more » also appeared to bind specifically to crude membranes of pig kidney medulla. In conclusion, the antagonist (/sup 3/H)-SK and F 101926 binds specifically and with high affinity to vasopressin receptors and is, thus, a powerful new tool to study vasopressin receptors.« less
Aluminosilicate Zeolite EMM-28 Containing Supercavities Determined by Continuous Rotation Electron Diffraction (2022)

A new aluminosilicate zeolite, denoted EMM-28, has been successfully synthesized on a large scale using 1,1-(3,3-(1,3-phenylene)bis(propane-3,1-diyl))bis(1-methylpyrrolidinium) hydroxide as an organic structure directing agent (OSDA), which was scaled up to an ∼20 g scale with a yield of 77%. It crystallizes as thin plates (40-100 nm in thickness), and the corresponding powder X-ray diffraction (PXRD) pattern shows significant peak broadening which makes it insufficient for structure determination. Continuous rotation electron diffraction (cRED) data collected from 13 crystals were successfully used to solve and refine the structure of EMM-28. This illustrates that cRED data are capable of performing structure determination despite limited PXRD data quality. EMM-28 has a unique framework structure containing supercavities, >21 Å in size, connected by one-dimensional 10-ring channels. High-resolution transmission electron microscopy (HRTEM) confirmed the structure model. The structure of EMM-28 is related to several known zeolite structures with large cavities.
Spotforming by NMF Using Multiple Microphone Arrays (2022)

Sound source separation is a method to extract a target sound source from a mixture of various sound sources and noises. One of the typical sound source separation methods is beamforming, which can separate sound sources by direction based on the phase difference between channels from the recorded signal of a microphone array, a multi-channel recording system. However, beamforming is a direction-based method and cannot separate multiple sources in the same direction. In this paper, we propose a method for separating sources in the same direction using multiple microphone arrays. The proposed method performs beamforming using multiple microphone arrays and extracts only the target sound source from the separated sound by the Non-negative Matrix Factorization (NMF), thus reducing the influence of other sources in the same direction. In this paper, to investigate the effectiveness of the proposed method, experiments were conducted assuming the presence of another sound source in the same direction from an arbitrary microphone array. The results show that the proposed method outperforms the delay-sum method in a simulation environment. In addition, experiments were conducted in a real environment to verify the effect of reverberation.
Activity of the rat liver-specific aldolase B promoter is restrained by HNF3 (1994)

Although it contains binding sites for HNF1, NFY and C/EBP/DBP, the proximal promoter of the aldolase B gene is surprisingly weak when tested by transient transfection in differentiated hepatoma cells. This low activity could be due to overlapping between HNF1 and HNF3 binding sites in element PAB, from -127 to -103 bp with respect to the cap site. Replacement of the PAB region by a consensus HNF1 binding site unable to bind HNF3, results in a 30 fold activation of the promoter, in accordance with the hypothesis that activity of the wild-type promoter is normally restrained by HNF3 binding to PAB competitively with HNF1. Consistently, transactivation of the wild-type promoter by excess HNF1 is very high, most likely due to the displacement of HNF3, while the construct with the exclusive HNF1 binding site is weakly transactivated by HNF1. The inhibitory effect of HNF3 on HNF1-dependent transactivation is clearly due to competition between these two factors for binding to mutually exclusive, overlapping sites; indeed, when HNF1 and HNF3 sites are contiguous and not overlapping, the resulting promoter is as active as the one containing an exclusive HNF1 binding site. A construct in which PAB has been replaced by an exclusive HNF3 binding site is weakly expressed and is insensitive to HNF3 hyperexpression. DBP-dependent transactivation, finally, is independent of the nature of the element present in the PAB region.
<title>Phase-space formalism and ray-tracing modeling of photometric quantities</title> (1997)

coherence and Fourier formalism, Radiometric Ray Tracing (R2T) has been proposed by the author [l3] The R2Tfacilitates the provision of input ray-tracing based on quasi-homogeneous source optical intensity and spatialcoherence. In this paper, we expand this model to a four-dimensional (4-D) phase-space defined by Cartesiancoordinates (x,y) and directional unit vector components (kx, ky). While the first ones define surface area, the secondone (1) defines the so-called Fourier area.The fundamental connection between photometric quantities and 4-D
Enhanced quantum oscillatory magnetization and nonequilibrium currents in an interacting two-dimensional electron system in MgZnO/ZnO with repulsive scatterers (2014)

Torque magnetometry at low temperature and in high magnetic fields $B$ is performed on MgZnO/ZnO heterostructures incorporating high-mobility two-dimensional electron systems. We find a sawtoothlike quantum oscillatory magnetization $M(B)$, i.e., the de Haas-van Alphen (dHvA) effect. At the same time, nonequilibrium currents and unexpected spikelike overshoots in $M$ are observed which allow us to identify the microscopic nature and density of the residual disorder. The acceptorlike scatterers give rise to a magnetic thaw down effect which enhances the dHvA amplitude beyond the electron-electron interaction effects being present in the MgZnO/ZnO heterostructures.
Anthropogenic Carbon Nanotubes Found in the Airways of Parisian Children (2015)

Compelling evidence shows that fine particulate matters (PMs) from air pollution penetrate lower airways and are associated with adverse health effects even within concentrations below those recommended by the WHO. A paper reported a dose-dependent link between carbon content in alveolar macrophages (assessed only by optical microscopy) and the decline in lung function. However, to the best of our knowledge, PM had never been accurately characterized inside human lung cells and the most responsible components of the particulate mix are still unknown. On another hand carbon nanotubes (CNTs) from natural and anthropogenic sources might be an important component of PM in both indoor and outdoor air. We used high-resolution transmission electron microscopy and energy dispersive X-ray spectroscopy to characterize PM present in broncho-alveolar lavage-fluids (n = 64) and inside lung cells (n = 5 patients) of asthmatic children. We show that inhaled PM mostly consist of CNTs. These CNTs are present in all examined samples and they are similar to those we found in dusts and vehicle exhausts collected in Paris, as well as to those previously characterized in ambient air in the USA, in spider webs in India, and in ice core. These results strongly suggest that humans are routinely exposed to CNTs.
Determination of the Structure of [Os(.eta.2-H2)en2CH3CO2]PF6 by X-ray and Neutron Diffraction (1994)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDetermination of the Structure of [Os(.eta.2-H2)en2CH3CO2]PF6 by X-ray and Neutron DiffractionTai Hasegawa, Zaiwei Li, Sean Parkin, Haakon Hope, Richard K. McMullan, Thomas F. Koetzle, and Henry TaubeCite this: J. Am. Chem. Soc. 1994, 116, 10, 4352–4356Publication Date (Print):May 1, 1994Publication History Published online1 May 2002Published inissue 1 May 1994https://doi.org/10.1021/ja00089a024RIGHTS & PERMISSIONSArticle Views144Altmetric-Citations74LEARN 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 InReddit PDF (574 KB) Get e-AlertscloseSupporting Info (3)»Supporting Information Supporting Information Get e-Alerts