gebhart/patrepeval huggingface dataset:
Isolation of Cytotoxic Compounds from the Leaves of Xanthium strumarium L. (1995)

MeOH extract of the leaves of Xanthium strumarium L. were found to have cytotoxic activities against five human tumor cell lines. Cytotoxicity-guided chromatographic fractionation led to the isolation of the containing sesquiterpenes, xanthatin, 8-epi-xanthatin and 8-epi-tomentosin. 8-epi-Xanthatin was found to be far more cytotoxic than 8-epi-tomentosin, which lacks the conjugated enone moiety present in 8-epi-xanthatin.
Non-Fermi-Liquid Behavior in Transport Through Co-Doped Au Chains (2013)

We calculate the conductance as a function of temperature G(T) through Au monatomic chains containing one Co atom as a magnetic impurity, and connected to two conducting leads with a fourfold symmetry axis. Using the information derived from ab initio calculations, we construct an effective model Ĥ(eff) that hybridizes a 3d(7) quadruplet at the Co site with two 3d(8) triplets through the hopping of 5d(xz) and 5d(yz) electrons of Au. The quadruplet is split by spin anisotropy due to spin-orbit coupling. Solving Ĥ(eff) with the numerical renormalization group we find that at low temperatures G(T)=a-b√[T] and the ground state impurity entropy is ln(2)/2, a behavior similar to the two-channel Kondo model. Stretching the chain leads to a non-Kondo phase, with the physics of the underscreened Kondo model at the quantum critical point.
Synthesis and characterization of silver nanoparticles by sol-gel route from silver nitrate; Sintesis y caracterizacion de nanoparticulas de plata por la ruta sol-gel a partir de nitrato de plata (2009)

Silver nanoparticles colloids have been synthesized by sol-gel method. This synthesis consists in silver nitrate reduction by ethylene glycol in a process called polyol. The growth of the nanoparticles have been controlled by the steric stabilization of the colloid with polyvinylpyrrolidone (PVP, M{sub w} = 40 000). The silver nanoparticle size and structure was depending on the control of parameters such as: molar concentrations ratio of silver nitrate and PVP, temperature of reaction and the reflux time. Colloids have been characterized by UV-vis spectroscopy in the range from 300 to 1000 nm. The results show that the typical peak of surface plasmon resonance is formed at 400-450 nm indicating the formation of silver nanoparticles. The presences of silver nanoparticles of spherical shape with size among 20-40 nm were observed by transmission electronic microscopy (TEM). Electron diffraction patterns confirmed that synthesized colloids contain metallic silver with a crystal structure face centered cubic FCC. (author)
Subunit III of Bovine Procarboxypeptidase A: its Relationship to Human Pancreatic Elastase 1 (1987)

This paper is a continuation of our study of various animal pancreatic enzymes which are related to human pancreatic elastase 1 (Sziegoleit, A. & Linder, D. (1986) Biol. Chem. Hoppe-Seyler, 367, 527-531). The isolation and immunological analysis of the related protein from bovine pancreas disclosed that the third subunit of the procarboxypeptidase A complex is the antibody-binding component. The similarity of this subunit to elastase 1 is affirmed by comparison of their primary structures. While the complete amino-acid sequence of bovine subunit III recently has been published (Venot, N., Sciaky, M., Puigserver, A., Desnuelle, P. & Laurent, G. (1986) Eur. J. Biochem. 157, 91-99), we here present the amino-acid sequence of the carboxy-terminal tryptic peptide of human pancreatic elastase 1 showing a high degree of homology.
Toll-Like Receptor 4 Mediates Acute Lung Injury Induced by High Mobility Group Box-1 (2013)

HMGB-1 can activate alveolar macrophages to produce proinflammatory cytokines and induce ALI through a mechanism that relies on TLR-4.
Attempts to Isolate Naturally Occurring Campylobacter, Salmonella, and Clostridium perfringens from the Ductus Deferens, Testes, and Ceca of Commercial Broiler Breeder Roosters (2005)

Recent studies have shown a significant level of Campylobacter in the semen of midlife and late-life broiler breeder roosters. The present study was conducted to determine if several foodborne pathogens (Campylobacter, Salmonella, and Clostridium perfringens) could be isolated from the ductus deferens, testes, and ceca of 45- to 65-wk-old commercial broiler breeder roosters. Five roosters from each of 3 separate commercial housed breeder farms were transported to the laboratory. An aseptic necropsy was performed to remove the ductus deferens, testes, and ceca without surface contamination from blood and other tissues. All samples were analyzed for each of the 3 previously mentioned bacteria, total aerobic bacteria, and Enterobacteriaceae. None of the 3 foodborne pathogens were isolated from the testes of the 15 commercial roosters. Clostridium perfringens was isolated from 1 of the 15 ductus deferens, whereas no Campylobacter or Salmonella were isolated from this tissue. Campylobacter was cultured from the ceca of all 15 roosters, Clostridium perfringens from 14/15, and Salmonella from 2/15. One-quarter of all commercial broiler breeder's semen samples were found to be contaminated with Campylobacter in a previous study; however, this organism as well as Salmonella and Clostridium perfringens were not found in the reproductive tissues located in the abdominal region. Escherichia coli and Enterococcus faecium were occasionally cultured from the ductus deferens. These data suggest that the contamination of semen by these foodborne pathogens is via fecal or cecal contamination as the semen passes through the cloaca and not from bacterial colonization of the testes and ductus deferens.
Development and Evaluation of Iron‐Coated Tubes that Indicate Reduction in Soils (2005)

Soil drainage conditions are important to land use decisions. Traditionally, anaerobic conditions induced by poor drainage have been evaluated by observing soil color related to Fe and Mn oxides, using α, α‐dipyridyl dye, measuring dissolved O 2 , and measuring E H We believe that there is further need for a device that is scientifically sound and easy to use. Therefore, our goals were to develop and test a device that mimics natural soil processes, visually indicates soil reduction, and is robust. Our concept was to coat a rod or tube with a colored soil mineral that dissolves on reduction, insert the device into a soil, remove it after a few weeks or longer, and observe if some of the coating had been lost. If the coating was not dissolved, no reduction occurred, but if it was dissolved, reducing conditions must have prevailed. After trying several kinds of coatings and tubes, we chose ferrihydrite (FH) coating on polyvinyl chloride (PVC) pipe. We call the device an Indicator of Reduction in Soils (IRIS). As the study progressed we added semi‐quantitative interpretations by measuring depleted areas using a digital camera and image analysis. We tested IRIS tubes in the lab and in soils in Indiana, Minnesota, and North Dakota, and concluded they performed as expected. Reduction rates increased between February and April and were related to increasing soil temperature, turnover (flux) of soil OC, and content (inventory) of OC. Reduction rates decreased after April, presumably because the nutrient supply for microbes decreased.
Arene Chromium and Manganese Tricarbonyl Analogs of the PCP Receptor Ligands 5-Methyl-10,11-dihydro-5H-dibenzo[a,d]cyclohepten-5,10-imine (MK-801) and 10,5-(Iminomethano)-10,11-dihydro-5H-dibenzo[a,d]cycloheptene (IDDC) (1994)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTArene Chromium and Manganese Tricarbonyl Analogs of the PCP Receptor Ligands 5-Methyl-10,11-dihydro-5H-dibenzo[a,d]cyclohepten-5,10-imine (MK-801) and 10,5-(Iminomethano)-10,11-dihydro-5H-dibenzo[a,d]cycloheptene (IDDC)Kyle R. Gee, Yixin Lu, Peter Barmettler, Michael R. Rhodes, N. Laxma Reddy, James B. Fischer, Ronald E. Cotter, Eckard Weber, and John F. W. KeanaCite this: J. Org. Chem. 1994, 59, 6, 1492–1498Publication Date (Print):March 1, 1994Publication History Published online1 May 2002Published inissue 1 March 1994https://pubs.acs.org/doi/10.1021/jo00085a042https://doi.org/10.1021/jo00085a042research-articleACS PublicationsRequest reuse permissionsArticle Views196Altmetric-Citations10LEARN 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-AlertscloseSupporting Info (1)»Supporting Information Supporting Information Get e-Alerts
Providing a framework for seagrass mapping in United States coastal ecosystems using high spatial resolution satellite imagery (2023)

Seagrasses have been widely recognized for their ecosystem services, but traditional seagrass monitoring approaches emphasizing ground and aerial observations are costly, time-consuming, and lack standardization across datasets. This study leveraged satellite imagery from Maxar's WorldView-2 and WorldView-3 high spatial resolution, commercial satellite platforms to provide a consistent classification approach for monitoring seagrass at eleven study areas across the continental United States, representing geographically, ecologically, and climatically diverse regions. A single satellite image was selected at each of the eleven study areas to correspond temporally to reference data representing seagrass coverage and was classified into four general classes: land, seagrass, no seagrass, and no data. Satellite-derived seagrass coverage was then compared to reference data using either balanced agreement, the Mann-Whitney U test, or the Kruskal-Wallis test, depending on the format of the reference data used for comparison. Balanced agreement ranged from 58% to 86%, with better agreement between reference- and satellite-indicated seagrass absence (specificity ranged from 88% to 100%) than between reference- and satellite-indicated seagrass presence (sensitivity ranged from 17% to 73%). Results of the Mann-Whitney U and Kruskal-Wallis tests demonstrated that satellite-indicated seagrass percentage cover had moderate to large correlations with reference-indicated seagrass percentage cover, indicative of moderate to strong agreement between datasets. Satellite classification performed best in areas of dense, continuous seagrass compared to areas of sparse, discontinuous seagrass and provided a suitable spatial representation of seagrass distribution within each study area. This study demonstrates that the same methods can be applied across scenes spanning varying seagrass bioregions, atmospheric conditions, and optical water types, which is a significant step toward developing a consistent, operational approach for mapping seagrass coverage at the national and global scales. Accompanying this manuscript are instructional videos describing the processing workflow, including data acquisition, data processing, and satellite image classification. These instructional videos may serve as a management tool to complement field- and aerial-based mapping efforts for monitoring seagrass ecosystems.
Antibiotic Discontinuation 24 h After Neonatal Late-Onset Sepsis Work-Up—A Validated Decision Tree Model (2021)

<b>Objectives:</b> Neonatal late-onset sepsis work-up is a frequent occurrence in every neonatal department. Blood cultures are the diagnostic gold standard, however, a negative culture prior to 48-72 h is often considered insufficient to exclude sepsis. We aimed to develop a decision tree which would enable exclusion of late-onset sepsis within 24 h using clinical and laboratory variables. <b>Study Design:</b> Infants evaluated for late-onset sepsis during the years 2016-2019, without major malformations, in a tertiary neonatal center were eligible for inclusion. Blood cultures and clinical and laboratory data were extracted at 0 and 24 h after sepsis work-up. Infants with bacteriologically confirmed late-onset sepsis were compared to matched control infants. Univariate logistic regression identified potential risk factors. A decision tree based on Chi-square automatic interaction detection methodology was developed and validated. <b>Results:</b> The study cohort was divided to a development cohort (105 patients) and a validation cohort (60 patients). At 24 h after initial evaluation, the best variables to identify sepsis were C-reactive protein > 0.75 mg/dl, neutrophil-to-lymphocyte ratio > 1.5 and sick-appearance at 24 h. Use of these 3 variables together with blood culture status at 24 h, enabled identification of all infants that eventually developed sepsis through the decision tree model. Our decision tree has an area under the receiver operating characteristic curve of 0.94 (95% CI: 0.90-0.98). <b>Conclusions:</b> In non-sick appearing infants with a negative blood culture at 24 h and normal laboratory values, sepsis is highly unlikely and discontinuing antibiotics after 24 h is a viable option.
SIMA: Python software for analysis of dynamic fluorescence imaging data (2014)

Fluorescence imaging is a powerful method for monitoring dynamic signals in the nervous system. However, analysis of dynamic fluorescence imaging data remains burdensome, in part due to the shortage of available software tools. To address this need, we have developed SIMA, an open source Python package that facilitates common analysis tasks related to fluorescence imaging. Functionality of this package includes correction of motion artifacts occurring during in vivo imaging with laser-scanning microscopy, segmentation of imaged fields into regions of interest (ROIs), and extraction of signals from the segmented ROIs. We have also developed a graphical user interface (GUI) for manual editing of the automatically segmented ROIs and automated registration of ROIs across multiple imaging datasets. This software has been designed with flexibility in mind to allow for future extension with different analysis methods and potential integration with other packages. Software, documentation, and source code for the SIMA package and ROI Buddy GUI are freely available at http://www.losonczylab.org/sima/.
Trajectory Optimization for Autonomous Flying Base Station via Reinforcement Learning (2018)

In this work, we study the optimal trajectory of an unmanned aerial vehicle (UAV) acting as a base station (BS) to serve multiple users. Considering multiple flying epochs, we leverage the tools of reinforcement learning (RL) with the UAV acting as an autonomous agent in the environment to learn the trajectory that maximizes the sum rate of the transmission during flying time. By applying Q-learning, a model-free RL technique, an agent is trained to make movement decisions for the UAV. We compare table-based and neural network (NN) approximations of the Q-function and analyze the results. In contrast to previous works, movement decisions are directly made by the neural network and the algorithm requires no explicit information about the environment and is able to learn the topology of the network to improve the system-wide performance.
Evaluation of Multi-Connectivity Schemes for URLLC Traffic over WiFi and LTE (2020)

Emerging applications such as wireless industrial control or robotics raise strict requirements in terms of latency and reliability on wireless communication systems. It is still an open issue which wireless communication system can be used to enable industrial applications such as closed-loop control. A promising approach to improve latency and reliability of wireless communications is multi-connectivity (MC), i.e. using multiple communication paths simultaneously. Different scheduling schemes can be used to distribute the traffic over multiple links. The characteristics of these schemes and which one is best suited to enable reliable low-latency communications in different scenarios needs to be investigated. In this paper, we evaluate the latency and reliability performance of a local Wi-Fi and a private LTE network for traffic patterns as envisioned for industrial applications. Moreover, we assess the performance of different MC scheduling schemes operating on Application Layer over these two wireless links with focus on reliability and latency metrics. For the evaluated single-user scenario, WiFi provides a lower mean latency than LTE. The evaluation of MC scheduling schemes shows that packet duplication (PD) stabilizes the latency by mitigating outliers, while load balancing (LB) reduces the latency of nearly 50 percent of packets in a scenario with bad radio conditions. Our results suggest that using links with similar mean latency would be beneficial for all scheduling schemes.
Matrix pencil: A novel approach for fast shunt compensated controlled switching (2003)

In this paper a novel and efficient approach is presented for power system switching transient analysis: The so-called Matrix Pencil Method MP, is based upon a modal decomposition of exponentially modulated sinusoids, formulated as a generalized eigen-value problem. In this paper we are interested in shunt compensated line transient voltages during auto re-closing operations. The MP method has readily proved it's efficiency in many areas (speech pattern recognition, aircraft, signal processing etc). Moreover, for such class of signals it shows better performance than many improved versions of the Prony's method such us Tufts and Kumaresan polynomial one. Many validation tests were carried out onto typical transient signals issued from EMTP/ATP simulations for different network configurations and show very satisfactory results.
Intravenous Administration of Apomorphine Does NOT Induce LongQTSyndrome: Experimental Evidence fromIn VivoCanine Models (2014)

Apomorphine is a non-selective dopamine D1/D2 receptor agonist, which has been used for patients with Parkinson's disease and reported to induce QT interval prolongation and cardiac arrest. To clarify their causal link, we assessed the cardiovascular and pharmacokinetic profile of apomorphine with the halothane-anaesthetized canine model (n = 4), whereas pro-arrhythmic potential of apomorphine was analysed with the chronic atrioventricular block canine model (n = 4). In the halothane-anaesthetized model, 0.01 mg/kg, i.v. of apomorphine hydrochloride over 10 min., providing about 10 times of its therapeutic concentration, increased the heart rate and ventricular contraction; 0.1 mg/kg over 10 min., providing about 100 times of the therapeutic, prolonged the ventricular effective refractory period; and 1 mg/kg over 10 min., providing about 1000 times of the therapeutic, decreased the ventricular contraction, mean blood pressure and cardiac output together with the intraventricular conduction delay and prolongation of the effective refractory period, whereas the left ventricular end-diastolic pressure, atrioventricular nodal conduction or ventricular repolarization were hardly affected. Meanwhile, in the atrioventricular block model, 1 mg/kg, i.v. of apomorphine hydrochloride over 10 min. neither prolonged the QT interval nor induced torsade de pointes. These results suggest that apomorphine may possess a wide margin of cardiovascular safety contrary to our expectations.
Role of Magnetic Resonance Imaging for Evaluating Shoulder Injuries in the Athlete (2000)

Summary: The introduction of magnetic resonance (MR) imaging has added significantly to our ability to diagnose injuries about the shoulder in overhead athletes. In order to direct imaging, a thorough understanding of the types of injuries incurred, mechanism of injury, and a good history and physical examination are essential. Plain MR has added to our knowledge of these shoulder injuries but has certain limitations. To improve diagnostic accuracy, scans enhanced with intra-articular contrast are recommended. In addition, understanding what might be normal findings on MR scans is crucial to making the correct diagnosis. Various anatomic variants, image artifacts and normal degenerative changes can be misinterpreted as pathology-causing symptoms and lead to an incorrect diagnosis and inappropriate treatment.
Measurement of workability of fresh concrete using a mixing truck (2005)

The main objective of this study is to evaluate the workability of fresh portland cement concrete while it is still in the mixing truck by determining fundamental rheological parameters (plastic viscosity and yield stress). Nine concrete mixtures with different values of yield stress and plastic viscosity were tested in a concrete truck. The measurements made with the truck were based on the typical method of determining the flow behavior in a traditional fluid rheometer; that is, the shear rate in the mixing truck was swept from high to low by varying the rotation speed of the drum. The results of these experiments are discussed and compared with data provided by the ICAR rheometer, a portable rheometer designed for measuring concrete rheology. The test results indicate that the mixing truck equipment is sufficiently sensitive to detect differences in yield stress, slump, and plastic viscosity. However, the plastic viscosity determined by the truck measurement did not correlate with plastic viscosity as measured by the ICAR rheometer, while the yield stress determined by the truck measurement did correlate well with the measured slump and the ICAR rheometer results Suggestions are given on how to improve the mixing truck for better use as a rheometer.
La promotion par les arts de certaines politiques de la ville (2004)

Ruby Christian. La promotion par les arts de certaines politiques de la ville. In: Raison présente, n°151, 3e trimestre 2004. Les politiques de la ville. pp. 79-90.
Crosslinking of Branched PIM-1 and PIM-Py Membranes for Recovery of Toluene from Dimethyl Sulfoxide by Pervaporation (2023)

Branched forms of the archetypal polymer of intrinsic microporosity PIM-1 and the pyridinecarbonitrile-containing PIM-Py may be crosslinked under ambient conditions by palladium(II) acetate. Branched PIM-1 can arise in polymerizations of 5,5',6,6'-tetrahydroxy-3,3,3',3'-tetramethyl-1,1'-spirobisindane with tetrafluoroterephthalonitrile conducted at a high set temperature (160 °C) under conditions, such as high dilution, that lead to a lower-temperature profile over the course of the reaction. Membranes of PIM-1 and PIM-Py crosslinked with palladium acetate are sufficiently stable in organic solvents for use in the recovery of toluene from its mixture with dimethyl sulfoxide (DMSO) by pervaporation at 65 °C. With both PIM-1 and PIM-Py membranes, pervaporation gives high toluene/DMSO separation factors (around 10 with a 77 vol % toluene feed). Detailed analysis shows that the membranes themselves are slightly selective for DMSO and it is the high driving force for toluene evaporation that drives the separation.