gebhart/patrepeval huggingface dataset:
Ionically Conductive Thin Polymer Films Prepared by Plasma Polymerization: V . Preparation and Characterization of Solid Polymer Electrolyte Composed of Plasma Polymerized Complex (1990)

Ultrathin, uniform, pinhole‐free solid polymer electrolyte films of approximately 1 μm thickness were prepared by the complexation of plasma‐polymerized tris(2‐methoxyethoxy)vinylsilane (TMVS) with . The results of FT‐IR, 1H NMR, and 13C NMR measurements indicate that the structure of the plasma polymer is very similar to poly(TMVS), except for the presence of a small amount of what is probably a cyclic group impurity. The glass transition temperature and ionic conductivity of the solid polymer electrolyte depend on the content, and the variation of the ionic conductivity with temperature can be described exactly by using a WLF type of equation. Room temperature conductivities greater than 10−6 S cm−1 (102 Ω cm2 resistance per unit area) were observed.
Hepatic Hemorrhage/Infarction and Arterial Thrombosis Secondary to Antiphospholipid Syndrome: A Therapeutic Dilemma (1995)

26-year-old woman with antiphospholipid syndrome presented with pregnancy-induced hypertension at 25 weeks gestation. At cesarean section her liver was noted to have numerous small subcapsular hemorrhages. Her postoperative recovery was complicated by arterial thrombosis, hepatic infarction, and prolonged thrombocytopenia which responded to plasmapheresis and intravenous steroid therapy.
Lipase-catalyzed asymmetric hydrolysis of esters having remote chiral/prochiral centers (1990)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLipase-catalyzed asymmetric hydrolysis of esters having remote chiral/prochiral centersDavid L. Hughes, J. J. Bergan, J. S. Amato, M. Bhupathy, J. L. Leazer, J. M. McNamara, D. R. Sidler, P. J. Reider, and E. J. J. GrabowskiCite this: J. Org. Chem. 1990, 55, 26, 6252–6259Publication Date (Print):December 1, 1990Publication History Published online1 May 2002Published inissue 1 December 1990https://pubs.acs.org/doi/10.1021/jo00313a010https://doi.org/10.1021/jo00313a010research-articleACS PublicationsRequest reuse permissionsArticle Views508Altmetric-Citations72LEARN 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
Substituted azopurines. 1. Synthesis of 8,8'-dioxo-6,6'-azopurine (1974)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSubstituted azopurines. 1. Synthesis of 8,8'-dioxo-6,6'-azopurineJoseph R. Davis, Arun L. Jadhav, and Jawed FareedCite this: J. Med. Chem. 1974, 17, 6, 639–642Publication Date (Print):June 1, 1974Publication History Published online1 May 2002Published inissue 1 June 1974https://pubs.acs.org/doi/10.1021/jm00252a014https://doi.org/10.1021/jm00252a014research-articleACS PublicationsRequest reuse permissionsArticle Views81Altmetric-Citations4LEARN 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
South African Railways, Table Bay Harbour (1911)

Plan shows Table Bay harbour area including Victoria Basin, Alfred Basin, the graving dock, Craig's Battery, R.N.V.R. Drill Battery, Fort Knocke, Military Hospital, City Corporation fruit and vegetable market, African Location, the Prestwich Street burial grounds, Green Point Common, Corporation Athletic Ground, feather market, the Seamen's Institute, Adderley Pier, the convict station, the electric power station, traffic offices, Somerset Hospital, Fort Wynyard, the disused lighthouse at Mouille Point and the municipality of Woodstock as well as the Sea Point railway, Cape Town railway station and contour areas in the Bay. The reference key gives details of the breakwater light, the noonday time signal and soundings in the Bay.
Protein and Molecular Characterization of a Clinically Compliant Amniotic Fluid Stem Cell-Derived Extracellular Vesicle Fraction Capable of Accelerating Muscle Regeneration Through Enhancement of Angiogenesis (2017)

The secretome of human amniotic fluid stem cells (AFSCs) has great potential as a therapeutic agent in regenerative medicine. However, it must be produced in a clinically compliant manner before it can be used in humans. In this study, we developed a means of producing a biologically active secretome from AFSCs that is free of all exogenous molecules. We demonstrate that the full secretome is capable of promoting stem cell proliferation, migration, and protection of cells against senescence. Furthermore, it has significant anti-inflammatory properties. Most importantly, we show that it promotes tissue regeneration in a model of muscle damage. We then demonstrate that the secretome contains extracellular vesicles (EVs) that harbor much, but not all, of the biological activity of the whole secretome. Proteomic characterization of the EV and free secretome fraction shows the presence of numerous molecules specific to each fraction that could be key regulators of tissue regeneration. Intriguingly, we show that the EVs only contain miRNA and not mRNA. This suggests that tissue regeneration in the host is mediated by the action of EVs modifying existing, rather than imposing new, signaling pathways. The EVs harbor significant anti-inflammatory activity as well as promote angiogenesis, the latter may be the mechanistic explanation for their ability to promote muscle regeneration after cardiotoxin injury.
The effects of forage preservation method and proportion of concentrate on nitrogen digestion and rumen fermentation in cattle (1993)

Abstract A 6 × 6 Latin square experiment with a 2 × 3 factorial arrangement of treatments was used to study forage preservation method and level of concentrate in a diet on organic matter (OM) and N digestion and rumen fermentation. Six bulls, each fitted with ruminal and duodenal cannulae, were given unwilted silage (S) or barndried grass (G) prepared simultaneously from the same timothy sward. The forages were fed together with 250 (L), 500 (M) or 750(H)g concentrate dry matter (DM)kg ‐1 total diet DM. The concentrate consisted of barley (875 gkg ‐1 ) and rapeseed meal (125g kg ‐1 ). The feeding level was 80g DMkg ‐1 live weight 0·75 . The apparent digestibility of OM was similar for S and G diets, and increased linearly ( P < 0·001) with increasing level of concentrate. The flow of microbial N at the duodenum and the apparent efficiency of microbial protein synthesis in the rumen were higher ( P < 0·05) with S than with G diets. Increasing the concentrate level increased linearly ( P < 0·05) the amounts of total N and microbial N at the duodenum, whereas the synthetic efficiency was not significantly affected. The mean rumen pH decreased linearly ( P < 0·001) from 6·43 to 6·03 with increasing concentrate level. The molar proportion of acetate (Ac) in the rumen volatile fatty acids (VFA) showed a linear ( P < 0·001) and quadratic ( P < 0·01) decrease, and that of butyrate (Bu) a linear ( P < 0·001) increase when the level of concentrate was increased. The proportion of propionate decreased slightly with both forages when the amount of concentrate was increased from level L to M. A further increase to level H increased propionate from 157 to 170 mmol mol ‐1 of total VFA with S and from 157 to 188 mmol mol ‐1 with G, the effect of concentrate level being not significant. The number of protozoa increased linearly ( P < 0·001) as the level of concentrate increased. The changes in the rumen fermentation patterns during the feeding cycle were greater for S than for G diets.
Modern techniques in reflectance measurements (1974)

Summary In the field of quantitative investigation of microscopic images reflectance measurements with the aid of photoelectric equipment play an important role. Reflectances can be used for the identification of various components in a polished specimen, for chemical analysis and for the determination of the refractive index of a specimen as well as for a determination of the various absorption parameters of reflecting solid material. The parameters involved are: reflectances at given wavelengths, spectral reflectance curves in the visible, UV‐, and near IR‐spectral range, reflectances of optically anisotropic surfaces at varying orientations of the vibration plane of linearly polarized light, reflectances in air and in an immersion liquid (mainly in standard immersion oil). From spectral curves, quantitative expressions of colour can be derived. Due to improvements in reflectance standard materials and technical design of apparatus the measurements and calculations can be carried out very conveniently, quickly and precisely.
Oxidation of a Phospholipid at an Electrode Modified with an Electrochemically Formed Sol‐Gel Film Doped with Cyclodextrin (2006)

Abstract In aqueous, un‐buffered solution at a potential where H + is generated in a tetraethylorthosilicate sol, nm‐scale deposits of silica on electrodes are formed. Inclusion of β‐cyclodextrin in the sol promotes electrochemical activity, presumably by producing channels in the otherwise‐passivating film. With the additional provision of inclusion of a redox mediator, Rh II , the electrochemical oxidation of a representative phospholipid (PL), phosphatidylcholine (PC), is demonstrated; the process occurs without the passivation that otherwise precludes the voltammetric determination of PLs. By cyclic voltammetry, current proportional to PC concentration in the range 1–100 μM is achieved with the described electrode.
A novel method for high precision aortic constriction that allows for generation of specific cardiac phenotypes in mice (2018)

Here, we introduce a novel method for high precision aortic constriction in mice with high intra- and inter-surgeon reproducibility and low post-operative mortality that allows generation of specific cardiac disease phenotypes.
Augmented Reality and the Future of Virtual Workspaces (2008)

Until recently, Augmented Reality (AR) technology has rarely been discussed outside of the computer science world. It has taken years for this technology to become closer to a stable existence, and will most likely take several more years before it will be used by average citizens. However, the technology does exist, it has been applied in several areas, and research is being done to create even more stable systems that are adaptable to various environments. For this reason, it is necessary for decision-makers in establishments where education and training, knowledge distribution, and individual and collaborative task completion are essential to be aware of this technology, its abilities, and the possible impacts to common workspaces and workers. The purpose of this chapter is to inform decision-makers of AR’s history, the completed research and current applications of AR, possible impacts to managers and workers, and the future trends of the technology.
Modeling self-heating effects in 10nm channel length nanowire transistors (2010)

In this work we focus on investigation of self-heating effect in 10 nm wide, 7 nm thick and 10 nm long channel of a silicon nanowire transistor, shown in Fig. 1. The difference between this structure and the previously investigated 2D fully depleted SOI transistors is that the SiO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> is now all around the structure, not just at the top and the bottom. Because SiO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> has very low thermal conductivity, and the nanowire itself has low thermal conductivity (because of phonon boundary scattering in the rectangular cross section), it was expected that self heating effects are more pronounced in the nanowire transistor when compared to the same channel length fully-depleted SOI device. Indeed, our extrapolation of the results at hand for fully depleted SOI devices with 10 nm channel length were expected to be on the order of 4.4%.
The relative importance of individual DR binding motif positions as defined by peptide anchor analysis of influenza hemagglutinin peptide 306–318 and human myelin basic protein peptide 152–165 binding to several DR molecules: definition of a common extended DR binding motif (1996)

Definition of peptide binding motifs for DR molecules has proven difficult as the peptides that bind to a DR molecule have shown extensive variability at putative motif positions. Recent studies suggest that specific peptide anchor residues (motif positions) and specific DR residues can differ in importance for peptide binding to a DR molecule. To assess further the relevance of individual peptide anchor residues, the binding of serial alanine-substituted analogs of influenza virus hemagglutinin (HA) 306-318 and human myelin basic protein (MBP) 152-165 to a panel of transfected wild-type DR molecules was examined. This analysis included DR molecules from a wide range of allelic families and, unlike most earlier studies, multiple members of single DR allelic families. The data show that different peptide residues serve as critical anchors for binding to different DR molecules. For example, MBP binding to DR(alpha, beta 1*0303) required peptide residues F154 (i), R159 (i + 5) and R162 (i + 8). In contrast, MBP binding to DR(alpha, beta 1*0102) required peptide residues I153 (i) and L156 (i + 3). More importantly, the combination of critical anchor residues in HA and MBP differed for binding to a single DR molecule [e.g. V309 (i) for HA and I153 (i) and L156 (i + 3) for MBP binding to DR(alpha, beta 1*0102)]. Although the location of the binding pocket in each DR molecule compared to the DR (alpha, beta 1 *0101) crystal is expected to be similar and suggests a common extended DR binding motif, the present results suggest that the relative importance of individual peptide anchor residues and of the corresponding DR binding pockets will differ for each DR/peptide complex.
Role of adsorbed nitrogen in the catalytic reduction of NO on rhodium surfaces (1999)

The role of surface nitrogen in the kinetics of the NO+CO conversion reaction on Rh(111) under steady-state catalytic conditions was explored by using collimated molecular beams and mass spectrometry detection. Two types of kinetically different nitrogen atoms were identified on the surface. The buildup of a critical nitrogen coverage was determined to be required for the start of the nitrogen recombination step to N2. This threshold coverage is quite large at low temperatures, amounting to over half a monolayer around 400 K, but decreases abruptly with increasing reaction temperature, and becomes almost insignificant above 600 K. The actual value of this coverage is quite insensitive to the ratio of NO to CO in the reaction mixture, but displays an inverse correlation with the steady-state reaction rate under most conditions. An additional small amount of nitrogen appears to be present on the surface during catalysis but to desorb rapidly after the removal of the gas-phase reactants. The NO reduction rate displays an approximately first-order dependence on the coverage of these labile N atoms. Isotope switching experiments indicated that the two types of kinetically different nitrogens are not likely to represent different adsorption sites, but rather similar adsorption states with adsorption energetics modified by their immediate surrounding environment on the surface. The data are explained here by a model in which the nitrogen atoms form surface islands and where the atoms at the perimeter of those islands react preferentially via N+N recombination to N2.
Evidence for and Characterization of Specific High Affinity Binding Sites for the Gastric Inhibitory Polypeptide in Pancreatic<i>β</i>-Cells* (1984)

High affinity binding sites have been found in membrane preparations from hamster beta-cell tumors by using radiolabeled gastric inhibitory polypeptide (125I-GIP). HPLC of 125I-GIP resulted in two major peaks (A III and B III), with identical specific binding. It was verified that peaks A III and B III stimulate insulin release from the isolated perfused rat pancreas to an extent at least equal to that obtained with unlabeled GIP at 10(-9) M. Natural GIP competitively inhibited the binding of 125I-GIP in the range of 10(-10) -10(-6) M and half-maximal inhibition was observed at 1.9 +/- 0.19 X 10(-9) M GIP. The number of high affinity sites was 219 +/- 8 fmol/mg protein and the dissociation constant was 2.05 +/- 0.1 X 10(-9) M. None of 10 regulatory peptides tested exhibited any effect on the 125I-GIP binding at concentrations in the range of 10(-6) -10(-4) M. Consequently, saturable, high affinity and specific binding sites for the GIP have been found and characterized in the plasma membranes of beta-cells. This model can be of use in studying the interaction of GIP with its preponderant target tissue.
A novel approach for coupling slag infiltration to metal flow, solidification and mold oscillation on a 3d model for continuous casting of slabs (2012)

This work presents a novel modeling methodology which allows one to predict slag infiltration in a 3D slab model by coupling the slag behavior with the metal flow, heat transfer, oscillation and so ...
An iterative frequency-domain layered space-time receiver for SDMA systems with single-carrier transmission (2004)

The use of multiple antennas at the BS (base station) allows significant improvements on the spectral efficiency of wireless communication systems by increasing the number of simultaneous users in a given cell. We introduce a new iterative multiuser detection scheme for systems requiring high-rate transmission in severe time-dispersive channels. We consider the use of single-carrier modulation combined with frequency-domain equalization techniques, which are known to be excellent candidates for severe time-dispersive channels. The BS employs multiple antennas and consists of an iterative LST (layered space-time) receiver combined with frequency-domain equalization techniques. Our performance results show that the proposed receiver structure has excellent performance, which can be very close to the matched filter bound, even for severe time-dispersive channels and in the presence of strongly interfering channels.
The Dynamic Characteristics of Oil Hydraulic Control Valve (1969)

This paper presents a new method for the calculation of the fluid flow forces acting on a valve. Its theory is based on the momentum theory and can explain the inertial force of fluid which was not considered in the former momentum theory. As an example, the dynamics of a single stage relief valve was studied analytically and experimentally. The transient response of the valve was calculated with the original nonlinear form and with a linearized form. Numerical results show the linearization does not carry much error and the linearized equations show that which are useful to explain experimental results.
Abstract 14888: Extracellular Matrix Quantification of Fully Regenerated Neochorade After Bio-scaffold Mitral Valve Implantation in a Juvenile Non-human Primate Model (2020)

Introduction: To investigate enhanced treatment options for critical mitral valve disease in children, we implanted a bio-scaffold mitral valve comprising of porcine small intestinal submucosa (PSIS) in a juvenile baboon model. Hypothesis: New tissue formation would be accelerated at physical connections between the replacement bio-scaffold valve and native cardiac tissues, due to direct extracellular matrix (ECM) communications. Methods: Juvenile baboons (n=2) were implanted with a hand-made bicuspid PSIS (Cormatrix, Roswell, GA) mitral valve. The PSIS valves were excised at 11- and 20-months post-implantation. Images of histological stains (Movat’s Pentachrome; Alizée Pathology, Inc., Thurmont, MD) were subsequently spatially mapped for ECM quantification (MATLAB; Mathworks, Natick, MA). Results: PSIS bio-scaffold mitral valves (11- and 20-months post-implantation) facilitated complete regeneration of neochordae. The neochordae seamlessly integrated into the papillary muscles and left ventricular insertion sites ( Figure 1A, E ). We also found that with an increase in implantation duration of ~ 9 months, the collagen, proteoglycan and elastin content (per mm 2 ; Figure 1B-D, F-H ) had a fold-change of 6.96, 18.42 and 4.94, respectively. Conclusions: Our findings suggest that the PSIS bio-scaffold mitral valve apparatus can regenerate neochordae without the need for any biochemical or biomechanical treatment. Nonetheless, other valve spatial areas of importance (e.g. leaflets) will require additional strategies. As a next step, we will produce oscillatory flow-conditioned, stem cell-derived ECM, to accelerate tissue regeneration. The mechanical parameters that we computed to permit physiological oscillatory flow conditions are an oscillatory shear index (OSI) of 0.23 and time averaged bio-scaffold shear stress (TAB-SSS) of 4.6 dynes/cm 2 . Acknowledgements: AHA Award ID: 16GRNT31090009; The Miami Research Heart Institute; FIU-UGS DYF.
Overrun Discharge Current Operation of Low Power Cylindrical Hall Thrusters (2007)

Illustration shows President Taft speaking from the back of a railroad caboose to a large crowd of skeptical mid-westerners that also includes Jonathan P. Dolliver, Robert M. La Follette, and Albert B aird Cummins. One man is holding a sign that states, "We're from Missouri also Wisconsin, Minnesota, Nebraska, Dakota & Iowa. Show us!" Taft is holding papers behind his back that state ,"Notes for speech how new tariff will benefit the West".