gebhart/patrepeval huggingface dataset:
Transcatheter aortic valve implantation in a patient with mechanical mitral prosthesis: A lesson learned from an intraventricular clash (2013)

We hereby present the case of a patient with severe aortic stenosis who underwent in her previous medical history a mitral valve replacement with a mechanical valve (Omnicarbon 27), and progressively developed a severe aortic stenosis. This patient was judged inoperable and then scheduled for CoreValve Revalving System implantation. Despite a good positioning of the CoreValve, an acute, severe mitral regurgitation developed soon after implantation as a consequence of the impaired movement of the mitral prosthesis leaflet. A condition of cardiogenic shock quickly developed. A good mitral prosthesis function was restored disengaging the CoreValve from the aortic annulus. After few months, the patients underwent successful Edwards-Sapien valve implantation through the Corevalve. This case strongly demonstrates how much a careful evaluation of the features of the mitral prosthesis and patient anatomy is crucial to select which specific transcatheter bioprosthesis would better perform.
Dynamic coordination of movies according to popularity index and resource availability within a hierarchical VOD system (2002)

We have designed and implemented a video on demand (VOD) system over heterogeneous wide area networks (WAN). The hierarchical architecture is an effective way to build such a system. One of the most important and still open issues in a hierarchical VOD system is how to arrange system resources for better performance corresponding to various applications. Our approach is to coordinate movie files dynamically according to their popularity index and resource availability. We present our system and protocol designs to support the dynamic coordination. We also describe our experimental results. Our approach gives a practical solution to VOD services on current network architecture such as the Internet.
Differentiation as a requirement for simian virus 40 gene expression in F-9 embryonal carcinoma cells. (1979)

Infection of differentiated mouse embryo cells by simian virus 40 (SV40) leads to the production of the early mRNAs and the tumor (T) antigens that they encode. In contrast, undifferentiated F-9 murine teratocarcinoma cells do not support these early stages of the SV40 cycle. This block results from the inability to accumulate stable processed early SV40 mRNAs. It has recently been shown that vitamin A and its derivatives can induce in vitro differentiation of stem cells. Undifferentiated F-9 cells, upon treatment with a low concentration of retinoic acid, exhibited pronounced morphologic changes as well as the appearance of the H-2 surface antigens. After differentiation, the susceptibility of F9 cells to SV40 infection could be demonstrated by the appearance of large T and small T antigens, as shown by immunofluorescence and immunoprecipitation. Furthermore, SI nuclease mapping of early SV40 transcripts confirmed the presence of the two spliced early mRNAs. These results indicate that the undifferentiated F-9 stem cells contain the genetic information needed for generating stable processed early SV40 mRNAs but are blocked in the production of functional species.
Golay Code Decoder Using Auto Encoder (2019)

This paper proposes a method to improve the performance of channel coding by using Auto Encoder. The channel coding technique used in this paper is the Golay code. The proposed method is to combine the Golay code with the Auto Encoder. The output from the Auto Encoder is corrected by the Golay code using the syndrome. Auto Encoder use models that increase the number of nodes in the hidden layer, unlike the typical Auto Encoder. If the Auto Encoder and the Golay code are combined, they show better performance than if only the Golay code is used. Therefore, we believe that even if we combine the techniques of different channel coding with the Auto Encoder, we can improve the performance of channel coding.
Genetic Analysis of H1, the Structural Gene for Phase-1 Flagellin in Salmonella (1975)

Summary: For the mapping of HI, the structural gene for phase-1 flagellin in Salmonella, spontaneous non-flagellate HI mutants were isolated from a phase-1 stable derivative, SJ925 HI-g1g2g3t, of Salmonella abortusequi. First, mapping was carried out with the deletion mutants among them by P22 phage-mediated transduction. Mutants of flaA1 and flaL, adjoining opposite sides of HI, were also included in the mapping. As the result, HI was divided into 16 segments by 15 deletions. Mapping by recombination frequencies was then carried out using representative HI mutants. Comparison of the two maps showed that 14 consecutive segments near flaL covered about 70% of the non-flagellate HI mutational sites, although they were confined to a quarter of HI in the recombination map. The other two segments were found to occupy the remaining three quarters of HI. By use of the deletion map, the sites of three phase-1 curly and three ah1 mutations were determined. The curly mutational sites were mapped in the segment second from the flaA1 side and the ahi mutational sites in the segments near the flaL side. To ascertain approximate positions of the areas determining the phase-1 antigen specificities, their arrangement relative to a curly mutational site, curly-2, and HI-linked fla genes was examined by three-point crosses. From the results, all the antigenic specificity-determining areas examined were located between flaA1 and curly-2 in the following order: flaA1--g2-g1-g4-(g3,g5,f,m,t)-curly-2---flaL.
An oxalic acid oxidase in the leaves of <i>Bougainvillea spectabilis</i> (1962)

Research Article| October 01 1962 An oxalic acid oxidase in the leaves of Bougainvillea spectabilis SK SRIVASTAVA; SK SRIVASTAVA Search for other works by this author on: This Site PubMed Google Scholar PS KRISHNAN PS KRISHNAN Search for other works by this author on: This Site PubMed Google Scholar Biochem J (1962) 85 (1): 33–38. https://doi.org/10.1042/bj0850033 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Facebook Twitter LinkedIn MailTo Cite Icon Cite Get Permissions Citation SK SRIVASTAVA, PS KRISHNAN; An oxalic acid oxidase in the leaves of Bougainvillea spectabilis. Biochem J 1 October 1962; 85 (1): 33–38. doi: https://doi.org/10.1042/bj0850033 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 JournalsBiochemical Journal Search Advanced Search This content is only available as a PDF. © 1962 The Biochemical Society1962 Article PDF first page preview Close Modal You do not currently have access to this content.
Synthesis and Applications of Boronic Acid-Containing Polymers: From Materials to Medicine (2015)

ADVERTISEMENT RETURN TO ISSUEPREVReviewNEXTSynthesis and Applications of Boronic Acid-Containing Polymers: From Materials to MedicineWilliam L. A. Brooks and Brent S. Sumerlin*View Author Information George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States*E-mail: [email protected]Cite this: Chem. Rev. 2016, 116, 3, 1375–1397Publication Date (Web):September 14, 2015Publication History Received18 May 2015Published online14 September 2015Published inissue 10 February 2016https://pubs.acs.org/doi/10.1021/acs.chemrev.5b00300https://doi.org/10.1021/acs.chemrev.5b00300review-articleACS PublicationsCopyright © 2015 American Chemical SocietyRequest reuse permissionsArticle Views27773Altmetric-Citations725LEARN 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 SUBJECTS:Carbohydrates,Diols,Hydrogels,Organic compounds,Polymers Get e-Alerts
Characterization of band offsets in AlxIn1-xAsySb1-y alloys with varying Al composition (2019)

The unprecedented wide bandgap tunability (∼1 eV) of AlxIn1-xAsySb1-y lattice-matched to GaSb enables the fabrication of photodetectors over a wide range from near-infrared to mid-infrared. In this paper, the valence band-offsets in AlxIn1-xAsySb1-y with different Al compositions are analyzed by tight binding calculations and X-ray photoelectron spectroscopy measurements. The observed weak variation in valence band offsets is consistent with the lack of any minigaps in the valence band, compared to the conduction band.
Oscillating bubbles: a versatile tool for lab on a chip applications (2012)

With the fast development of acoustic and multiphase microfluidics in recent years, oscillating bubbles have drawn more-and-more attention due to their great potential in various Lab on a Chip (LOC) applications. Many innovative bubble-based devices have been explored in the past decade. In this article, we first briefly summarize current understanding of the physics of oscillating bubbles, and then critically summarize recent advancements, including some of our original work, on the applications of oscillating bubbles in microfluidic devices. We intend to highlight the advantages of using oscillating bubbles along with the challenges that accompany them. We believe that these emerging studies on microfluidic oscillating bubbles will be revolutionary to the development of next-generation LOC technologies.
Inhibition of cholesterol synthesis and esterification regulates high density lipoprotein interaction with isolated epithelial cells of human small intestine (1990)

The effect of two inhibitors of 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase, lovastatin and monacolin L, and an inhibitor of acyl coenzyme A:cholesterol acyltransferase (ACAT), Sandoz compound 58-035, on the interaction of 125I-labeled high density lipoprotein-3 (HDL3) with isolated human enterocytes was studied. Both HMG-CoA reductase inhibitors inhibited cholesterol synthesis and 125I-labeled HDL3 binding and degradation by enterocytes; a strong correlation between changes in cholesterol synthesis and interaction of 125I-labeled HDL3 with cells was observed. Lovastatin caused reduction of the apparent number of 125I-labeled HDL3 binding sites without affecting the binding affinity. No changes of cell cholesterol content were observed after incubation of cells with lovastatin. Mevalonic acid reversed the effect of lovastatin on 125I-labeled HDL3 binding. Lovastatin blocked up-regulation of the HDL receptor in response to loading of cells with nonlipoprotein cholesterol and modified cholesterol-induced changes of 125I-labeled HDL3 degradation. Lovastatin also reduced HDL-mediated efflux of endogenously synthesized cholesterol from enterocytes. The ACAT inhibitor caused a modest increase of 125I-labeled HDL3 binding to enterocytes and significantly decreased its degradation; both effects correlated with inhibition of cholesteryl ester synthesis. The results allow us to assume that the intracellular free cholesterol pool may play a key role in regulation of the HDL receptor.
Carcinoid heart disease: presentation, diagnosis, and management (2004)

ricuspid and pulmonary valve regurgitation usually occurs as a secondary phenomenon caused by dilatation of the valve ring secondary to right ventricular failure or pulmonary hypertension, respectively. Primary diseases of the tricuspid or pulmonary valves are uncommon, but the more likely causes might include congenital abnormalities, rheumatic heart disease, or infective endocarditis. Carcinoid heart disease is a rare, but interesting and important cause of intrinsic tricuspid and pulmonary valve disease leading to significant morbidity and mortality caused by right heart failure. When treated medically, and in appropriate cases surgically, significant benefits in overall quality of life and long term survival can be achieved. We review the current literature regarding the pathophysiological basis of the disease, the cardiovascular complications, and the currently available treatment strategies.
Hydrogenolysis of carbohydrate acetals, ketals, and cyclic orthoesters with lithium aluminium hydride – aluminium trichloride (1969)

The reduction of hexofuranose and hexopyranose acetals with LiAlH 4 –AlCl 3 (1:1, probably AlH 2 Cl) to the corresponding ethers proceeds in similar fashion as that of simple acetals and ketals (Scheme I) (refs. 1–7). Certain O-methyl and O-benzyl derivatives, not readily obtainable otherwise, are conveniently synthesized from appropriate acetals in this way. Cyclic orthoesters of glucofuranose may be selectively reduced to acetals; the steric course of such reduction has been shown unequivocally in the case of orthoformates (Scheme II). Of several cleavable groups, the ease of hydrogenolysis is (a) cyclic orthoester > isopropylidene ketal, cyclohexylidene ketal > benzylidene acetal > ethylidene acetal > formal and (b) 5,6-O-linked or 3,5-O-linked acetal or ketal > 1,2-O-linked acetal or ketal.
Depression and Hippocampal Neurogenesis: A Road to Remission? (2012)

Adult-generated hippocampal neurons are required for mood control and antidepressant efficacy, raising hopes that someday we can harness the power of new neurons to treat mood disorders such as depression. However, conflicting findings from preclinical research--involving stress, depression, and neurogenesis--highlight the complexity of considering neurogenesis as a road to remission from depression. To reconcile differences in the literature, we introduce the "neurogenic interactome," a platform from which to consider the diverse and dynamic factors regulating neurogenesis. We propose consideration of the varying perspectives--system, region, and local regulation of neurogenesis--offered by the interactome and exchange of ideas between the fields of learning and memory and mood disorder research to clarify the role of neurogenesis in the etiology and treatment of depression.
The Effects of Multidimensional Navigational Aids and Individual Differences on WWW Hypertext Navigation (1998)

The most common application of hypertext today is found on the World Wide Web, with the numbers of sites and potential users increasing continually. Hypertext systems are characterized by hyperlinks that allow users nonsequential access to the documents contained within them. Because users are not constrained to read through these documents in a linear manner, new problems may arise not found in traditional paper versions. These problems are generally characterized by a sense of being “lost ” within a hypertext system. The user may not know exactly where they are or how to get where they want to be. They have lost many of the visual cues that indicate position found in ordinary texts like books. Navigational aids or overview maps have been suggested as a means to help counteract this problem. These navigational aids can take a standard table-of-contents and extend it dynamically or provide a completely new paradigm of browsing. To that extent, many new varieties of maps (including three-dimensional ones) have been developed but not thoroughly studied. As well, it may be theorized that users of differing cognitive abilities may be helped or hindered by such devices. An empirical study was performed to investigate the effect of multidimensional maps.
Synthesis of poly(3, 4-ethylenedioxythiophene) coating on textiles by the vapor phase polymerization method (2014)

In this article, plain weave fabrics of polyester were functionalized by means of a polymeric coating synthesized for high conductivity, using the vapor phase polymerization method. The method is considerably more efficient and sustainable than traditional wet methods and has been previously applied to synthesize poly(3, 4-ethylenedioxythiophene) in yarns and fabrics, using oxidant agents with organic solvents. In this article, aqueous oxidant solutions were used in addition to those based in ethanol, providing textile substrates with high electrical conductance. The effect of the concentration of the oxidant solution on the electrical and mechanical characteristics of the samples was investigated and correlated to their morphology, analyzed by electron microscopy imaging. A strong decrease of the sheet resistivity of the samples with the concentration of oxidant increase was obtained, while the fabrics’ original mechanical tenacity remained unchanged. The sheet resistivity of the samples could be further decreased by a factor of 5 by the application of multiple polymerization layers and was a function of the conjugated polymer content. The effect of washing/drying cycles on the electrical conductance of the samples is presented. The electrical and mechanical characteristics obtained have potential for smart textile applications such as electromagnetic shielding and physiological sensing.
Irrigation Scheduling Based on Soil Moisture Sensors and Evapotranspiration (2015)

Irrigation scheduling is crucial to effectively manage water resources and optimize profitability of an irrigated operation. Tools that can be customized to a field’s characteristics can greatly facilitate irrigation scheduling decisions. Soil moisture sensors and the evapotranspiration (ET)-based KanSched are two of the tools that could be implemented in an irrigated farm. Focusing on the installation of soil moisture sensors, demonstration set-ups were established at the Southwest Research-Extension Center plots in Garden City, Kansas, and in a producer’s field, each with three types of moisture sensors at different depths. Among others, this project validates the importance of moisture sensors being installed as early as possible in a representative location with good soil-sensor contact. The moisture sensors, at the least, help in determining when irrigation water should be applied or scheduled. Furthermore, in implementing an irrigation schedule, the irrigation manager considers the irrigation system capacity, the amount that can be efficiently applied, the soil intake rate, and other relevant factors.
Evaluation of the chromatin for cell images (1986)

Abstract This paper describes a method of evaluating the difference in chromatin content of cervical cancer cells and normal cells by applying image processing techniques. Among the various methods for texture analysis, this paper adopts structural analysis to achieve high accuracy. The analysis procedure is as follows. (1) The location of chromatin is determined by extracting the pixel where the gray level is locally maximum. (2) The image is segmented by any of Volonoi neighborhood, area expansion by a difference direction, or directed tree. (3) Threshold processing is applied to the segmented subimages. (4) The size and gray level of the extracted areas are determined. A feature extraction experiment for the cell is perormed by the above procedure. From these results, the following observations are obtained. (i) The method of local maximum is useful in determining the chromatin location. (ii) The extraction can be improved by local thresholding. (iii) The mean, variance and mean gray level of the cell in the extracted chromatin area, as well as the mean and variance of the minimum distance among local maxima, are seen to be useful feature parameters in the discrimination of normal and malingnat chromatins.
A distributed discrete event dynamic model for supply chain of business enterprises (2003)

We treat supply chain of business enterprises as a distributed system of collaborative processes, where the system dynamics is governed by the events that occur within each enterprise and/or across several enterprises. While each enterprise has its own middleware for handling business transactions, we argue that there is also need for a meta-middleware across the whole supply chain. We present a formalism to build the control structure, which must be embedded in such a meta-middleware. We provide an illustrative example.
Identification of the LIV-I/LS System as the Third Phenylalanine Transporter in <i>Escherichia coli</i> K-12 (2003)

In Escherichia coli, the active transport of phenylalanine is considered to be performed by two different systems, AroP and PheP. However, a low level of accumulation of phenylalanine was observed in an aromatic amino acid transporter-deficient E. coli strain (DeltaaroP DeltapheP Deltamtr Deltatna DeltatyrP). The uptake of phenylalanine by this strain was significantly inhibited in the presence of branched-chain amino acids. Genetic analysis and transport studies revealed that the LIV-I/LS system, which is a branched-chain amino acid transporter consisting of two periplasmic binding proteins, the LIV-binding protein (LIV-I system) and LS-binding protein (LS system), and membrane components, LivHMGF, is involved in phenylalanine accumulation in E. coli cells. The K(m) values for phenylalanine in the LIV-I and LS systems were determined to be 19 and 30 micro M, respectively. Competitive inhibition of phenylalanine uptake by isoleucine, leucine, and valine was observed for the LIV-I system and, surprisingly, also for the LS system, which has been assumed to be leucine specific on the basis of the results of binding studies with the purified LS-binding protein. We found that the LS system is capable of transporting isoleucine and valine with affinity comparable to that for leucine and that the LIV-I system is able to transport tyrosine with affinity lower than that seen with other substrates. The physiological importance of the LIV-I/LS system for phenylalanine accumulation was revealed in the growth of phenylalanine-auxotrophic E. coli strains under various conditions.
A Photovoltaic Generation System with Improvement of Power Degradation Caused by Non-Uniform Insolation (2006)

This paper proposes a new photovoltaic generation system which effectively uses generated power of shadowed cells. In this system, a capacitor is connected to the solar cell module in parallel. The generated power of the shadowed cells is charged into the capacitor. This charged power is added to the solar cell array output power. The proposed system needs no external power supplies and is very compact and cost-effective. The energy efficiency of the system is much better than that of the bypass diode method. The experiment shows the usefulness of this system.
GPU-based parallel algorithm for generating massive scale-free networks using the preferential attachment model (2017)

A novel parallel algorithm is presented for generating random scale-free networks using the preferential-attachment model. The algorithm, named cuPPA, is custom-designed for single instruction multiple data (SIMD) style of parallel processing supported by modern processors such as graphical processing units (GPUs). To the best of our knowledge, our algorithm is the first to exploit GPUs, and also the fastest implementation available today, to generate scale-free networks using the preferential attachment model. A detailed performance study is presented to understand the scalability and runtime characteristics of the cuPPA algorithm. In one of the best cases, when executed on an NVidia GeForce 1080 GPU, cuPPA generates a scale-free network of two billion edges in less than 3 seconds.