gebhart/patrepeval huggingface dataset:
Formation of deposits from thin films of mineral oil base stocks on cast iron (1987)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFormation of deposits from thin films of mineral oil base stocks on cast ironSpyros I. Tseregounis, James A. Spearot, and Deborah J. KiteCite this: Ind. Eng. Chem. Res. 1987, 26, 5, 886–894Publication Date (Print):May 1, 1987Publication History Published online1 May 2002Published inissue 1 May 1987https://pubs.acs.org/doi/10.1021/ie00065a006https://doi.org/10.1021/ie00065a006research-articleACS PublicationsRequest reuse permissionsArticle Views150Altmetric-Citations20LEARN 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
Research for Suitable Position of Small Wind Turbine System above Building (2004)

This paper describes the results of the performance analysis on a small WTGS (wind turbine generator system) installed above a building, which recently attracts attention as a local power station. The effect of the turbine location above the building and the neighboring buildings on the power output has been examined by a series of detailed field test and the numerical analysis based on the turbulent flow model. Using a conditional sampling technique the measurement results has been analyzed carefully, and examined the optimum location for the installation of the small WTGS above the building in relation to the building's height.
Synthesis, Characterization, and Antifungal Activity of Pyridine-Based Triple Quaternized Chitosan Derivatives (2018)

In this study, a series of triple quaternized chitosan derivatives, including 6-<i>O</i>-[(2-hydroxy-3-trimethylammonium)propyl]-2-<i>N</i>-(1-pyridylmethyl-2-ylmethyl)-<i>N</i>,<i>N</i>-dimethyl chitosan chloride (<b>7</b>), 6-<i>O</i>-[(2-hydroxy-3-trimethylammonium)propyl]-2-<i>N</i>-(1-pyridylmethyl-3-yl- methyl)-<i>N</i>,<i>N</i>-dimethyl chitosan chloride (<b>8</b>), and 6-<i>O</i>-[(2-hydroxy-3-trimethylammonium)propyl]- 2-<i>N</i>-(1-pyridylmethyl-4-ylmethyl)-<i>N</i>,<i>N</i>-dimethyl chitosan chloride (<b>9</b>) were successfully designed and synthesized via reacting epoxypropyl trimethylammonium chloride with the <i>N</i>-pyridinium double quaternized chitosan derivatives. Detailed structural characterization was carried out using FT-IR and ¹H-NMR spectroscopy, and elemental analysis. Besides, the activity of the triple quaternized chitosan derivatives against three common plant pathogenic fungi, <i>Watermelon fusarium</i>, <i>Fusarium oxysporum</i>, and <i>Phomopsis asparagi</i>, was investigated in vitro. The results indicated that the triple quaternized chitosan derivatives had enhanced antifungal activity when compared to double quaternized chitosan derivatives and chitosan, especially at 1.0 mg/mL, which confirmed the theory that the higher density of positive charge contributed to the antifungal activity. Moreover, <b>8</b> with an almost 99% inhibitory index showed the better antifungal activity against <i>Watermelon fusarium</i>. Moreover, the cytotoxicity of the products was also evaluated in vitro on 3T3-L1 cells and all the triple quaternized chitosan derivatives exhibited low cytotoxicity. These results suggested that triple quaternized chitosan derivatives may be used as good antifungal biomaterials.
Coexpression of dynorphin and neurokinin B immunoreactivity in the rat hypothalamus: Morphologic evidence of interrelated function within the arcuate nucleus (2006)

Considerable evidence suggests that dynorphin and neurokinin B (NKB) neurons in the hypothalamic arcuate nucleus participate in the sex-steroid regulation of reproduction. In the present study, we used dual-label immunofluorescence to explore the distribution of prodynorphin and proNKB immunoreactivity in the rat hypothalamus. Additionally, we investigated whether arcuate prodynorphin-ir (immunoreactive) neurons expressed the neurokinin 3 receptor (NK3R) or nuclear estrogen receptor-alpha (ERalpha). We found that the majority of prodynorphin-ir neurons in the rat arcuate nucleus expressed proNKB, whereas nearly all (99%) of the proNKB neurons were immunoreactive for prodynorphin. The arcuate nucleus was the only site in the hypothalamus where neuronal somata coexpressing prodynorphin and proNKB-immunoreactivity were identified. A dense plexus of double-labeled prodynorphin/proNKB-ir fibers was found within the arcuate nucleus extending to the median eminence and throughout the periventricular zone of the hypothalamus. Prodynorphin/proNKB fibers were also identified in the paraventricular nucleus, anterior hypothalamic area, medial preoptic area, median preoptic nucleus, anteroventral periventricular nucleus, and bed nucleus of the stria terminalis in a distribution consistent with previously described arcuate nucleus projections. Interestingly, the majority of prodynorphin-ir neurons in the arcuate nucleus expressed NK3R, and nearly 100% of the prodynorphin-ir neurons contained nuclear ERalpha. Our results suggest that there is a close functional relationship between dynorphin and NKB peptides within the arcuate nucleus of the rat, which may include an autofeedback loop mediated through NK3R. The diverse hypothalamic projections of fibers expressing both prodynorphin and proNKB provide evidence that these neurons may participate in a variety of homeostatic and neuroendocrine processes.
Red cells from the original JAL+ proband are also DAK+ and STEM+ (2011)

J.Allen's RBCs express the low-prevalence Rh antigens, JAL, V/VS (extremely weakly), STEM, and DAK. The presence of JAL on the variant Rhce, RhceJAL (16Cys, 114Trp, 245Val), STEM on the variant Rhce, RhceBI (16Cys, 238Val, 273Val, 378Val), and DAK on the variant RhD (170Thr, 223Val), encoded by RHD*DOL in trans to RHCE*ceBI is consistent with expression of these antigens. When J. Allen RBCs are used to detect and identify an anti-JAL, it is important to remember that they also express STEM and DAK.
High-order harmonic generation in a capillary discharge (2023)

A pre-ionized medium created by a capillary discharge results in more efficient use of laser energy in high-order harmonic generation (HHG) from ions. It extends the cutoff photon energy, and reduces the distortion of the laser pulse as it propagates down the waveguide. The observed enhancements result from a combination of reduced ionization energy loss and reduced ionization-induced defocusing of the driving laser as well as waveguiding of the driving laser pulse. The discharge plasma also provides a means to spectrally tune the harmonics by tailoring the initial level of ionization of the medium.
Stainless Steel Fiber Reinforcement of Polymethylmethacrylate (1977)

The reinforcement of polymethylmethacrylate with small caliber stainless steel fibers can significantly improve its mechanical properties. While maintaining all the advantages of unreinforced polymethylmethacrylate, it can be demonstrated that compression, flexural tension, tension and impact parameters of cement reinforced with one quarter inch long steel fibers are dramatically enhanced. Careful cement preparation further improves these properties. The polymerizing composite is easily prepared within the operating room and the exothermic reaction is not as severe as the unreinforced material. Furthermore, the metal fiber reinforcement provides the potential for core heating, the capability of depolymerization to facilitate cement removal, and invites research on new prosthetic stem designs.
Molecular chaperones (TrxA, SUMO, Intein, and GST) mediating expression, purification, and antimicrobial activity assays of plectasin in Escherichia coli (2014)

Plectasin (PS) is the first defensin to be isolated from a fungus, the saprophytic ascomycete Pseudoplectania nigrella, and active against Streptococcus pneumoniae and S. aureus, including antibiotic-resistant pathogens. To establish a bacterium-based production system, we compared the efficiency of four molecular chaperones and corresponding cleavage to the expression and purification of plectasin. The results showed that the yield of plectasin combined with thioredoxin A (TrxA) and small ubiquitin-related modifier (SUMO) was at a higher level (0.0356 and 0.0358 g L(-1), respectively) than that with intein (0.0238 g L(-1)) and glutathione-S-transferase (GST) (0.0243 g L(-1)). TrxA-plectasin, SUMO-plectasin, and 2-plectasin were cleaved at the correct site and purified, but their considerable amount was not cleaved and remained as a fusion peptide. The antimicrobial activity of plectasin cleaved from SUMO--plectasin against methicillin-resistant Staphylococcus aureus (MRSA), penicillin-resistant S. pneumoniae (PRSP), and vancomycin-resistant enterococci (VRE)--was stronger than ampicillin (Amp) for the same amount of substance (P ≤ 0.05). This is the first study to complete and compare the effect of different molecular chaperones and corresponding cleavage with the expression and purification of plectasin in the Escherichia coli expression system, which laid the foundation for future research and may develop the application and production of plectasin.
VALIDATION AND REFINEMENT OF A SURVIVAL MODEL FOR LIVER RETRANSPLANTATION (1999)

948 Because of extreme organ shortage, high resource utilization, and diminished survival, liver retransplantation (ReTx) is controversial. A recent model (Hepatology Feb 1999) based on UNOS data of American patients undergoing ReTx appears to accurately predict survival. Aim: To validate the survival model using an independent cohort of foreign patients and to determine if other variables for which the UNOS Registry Data were incomplete (immunosuppression and specific etiologies of non-PNF graft failure) could provide additional prognostic information. Methods: 200 adult pts undergoing ReTx (between 7/86 and 12/97) at 5 foreign transplant centers comprised the validation cohort. Results: 1-yr pt survival rates in the low, intermediate, and high risk groups were 82%, 71%, and 37%, respectively (p < .0001, below). Immunosuppression and causes of non-PNF graft failure did not contribute independently to estimation of prognosis. American pts were older, had greater pre-ReTx risk scores and mortality. The final model, based on 1580 pts undergoing ReTx worldwide: R score = .019(recipient age) + .097(sq root bilirubin) + 0.384 logeCr−.476(PNF) + UNOS status coefficient. (Figure)FigureConclusions: 1) ReTx in low-risk patients is associated with longterm survival rates comparable to primary OLT. 2) This analysis confirms the generalizability of our 5 variable model. 3) Prospective validation and use of this model as an adjunct to clinical decision-making are warranted.
Carbapenem Resistance in Acinetobacter nosocomialis and Acinetobacter junii Conferred by Acquisition of bla OXA-24/40 and Genetic Characterization of the Transmission Mechanism between Acinetobacter Genomic Species (2022)

Carbapenem resistance is increasing among Gram-negative bacteria, including the genus Acinetobacter. This study aimed to characterize, for the first time, the development of carbapenem resistance in clinical isolates of Acinetobacter junii and Acinetobacter nosocomialis conferred by the acquisition of a plasmid-borne <i>bla</i><sub>OXA-24/40</sub> gene and also to characterize the dissemination of this gene between species of Acinetobacter. Carbapenem-resistant A. nosocomialis HUAV-AN66 and A. junii HUAV-AJ77 strains were isolated in the Arnau de Vilanova Hospital (Spain). The genomes were sequenced, and <i>in silico</i> analysis were performed to characterize the genetic environment and the OXA-24/40 transmission mechanism. Antibiotic MICs were determined, and horizontal transfer assays were conducted to evaluate interspecies transmission of OXA-24/40. Carbapenems MICs obtained were ≥64 mg/L for HUAV-AN66 and HUAV-AJ77. Genome analysis revealed the presence in both strains of a new plasmid, designated pHUAV/OXA-24/40, harboring the carbapenem-resistance gene <i>bla</i><sub>OXA-24/40</sub> and flanked by sequences XerC/XerD. pHUAV/OXA-24/40 was successfully transferred from A. nosocomialis and A. junii to a carbapenem-susceptible A. baumannii strain, thus conferring carbapenem resistance. A second plasmid (pHUAV/AMG-R) was identified in both clinical isolates for the successful horizontal transfer of pHUAV/OXA-24/40. <i>bla</i><sub>OXA-24/40-</sub>carrying plasmids of the GR12 group and showing high identity with pHUAV/OXA-24/40 were identified in at least 8 Acinetobacter species. In conclusion the carbapenemase OXA-24/40 is described for the first time in A. nosocomialis and A. junii. In both isolates the <i>bla</i><sub>OXA-24/40</sub> gene was located in the GR12 pHUAV/OXA-24/40 plasmid. GR12 plasmids are implicated in the dissemination and spread of carbapenem resistance among Acinetobacter species. <b>IMPORTANCE</b> Acinetobacter baumannii is one of the most relevant pathogens in terms of antibiotic resistance. The main resistance mechanisms are the carbapenem-hydrolyzing class D β-lactamases (CHDLs), especially OXA-23 and OXA-24/40. In addition to A. baumannii, there are other species within the genus Acinetobacter, which in general exhibit much lower resistance rates. In this work we characterize for the first time two clinical isolates of Acinetobacter nosocomialis and Acinetobacter junii, isolated in the same hospital, carrying the carbapenemase OXA-24/40 and displaying high resistance rates to carbapenems. By means of bioinformatics analysis we have also been able to characterize the mechanism by which this carbapenemase is horizontally transferred interspecies of Acinetobacter spp. The dissemination of carbapenemase OXA-24/40 between non-<i>baumannii</i> Acinetobacter species is concerning since it prevents the use of most β-lactam antibiotics in the fight against these resistant isolates.
Construction of optimal frequency hopping sequences for minimizing bit errors in selective fading channels characteristic to digital cellular systems (2002)

The problem of constructing frequency hopping patterns for use in time division multiple access-frequency division multiple access (TDMA-FDMA) cellular systems that employ frequency diversity to minimize bursty errors occurring due to the fading channel is discussed. Conditions under which two frequency and time channels fade independently in a mobile fading channel are reviewed. The construction of a family of effective frequency hop sequences for achieving maximum diversity is given. The construction is based on the theory of linear congruences, and the number of sequences for every integer is established. It is shown that when sequences are constructed using prime numbers they are also orthogonal. Examples of constructed sequences applicable to the Groupe Speciale Mobile (GSM) cellular system are given.
Detection of xanthine oxidase in human atherosclerotic specimens and arterialized vein grafts (1997)

Xanthine oxidase is an essential enzyme in the formation of uric acid and has been previously identified by immunohistochemistry in liver, intestine and capillary endothelial cells. The purpose of this study was to investigate the presence of xanthine oxidase in human atherosclerotic plaques. Atherosclerotic plaques from carotid endarterectomy pathology specimens were snap frozen in liquid nitrogen, placed in an OCT block, and cut to a thickness of 6 microns with a cryotome. Slides were stored at -120° C until ready for staining Immunohistochemical staining, using a polyclonal rabbit anti-xanthine oxidase antibody (Fitzgerald, Concord MA), was performed on 17 specimens which included 14 carotid endarterectomy plaques, 2 transplant donors and 1 arterialized saphenous vein graft. The staining for xanthine oxidase was found to be positive in carotid artery from transplant donors, carotid artery plaques and the arterialized vein graft. The carotid artery of donors was found to have positive staining in the intima that was less than the staining of smooth muscle cells in the media. Occasional cells the adventitia also stained positive. The carotid plaques were found to be irregularly stained, with endothelial cells and smooth muscle cells staining positive in the intima. The thickened intimal and medial areas of the plaques had cholesterol clefts whose periphery stained more intensively than the rest of the plaque. Additional staining using an antibody against uric acid crystals was, likewise, positive in these areas. In the arterialized vein graft, endothelial cells and smooth muscle cells, likewise, stained positive for xanthine oxidase in the thickened intima. The layers beyond the elastic lamina were negative. These results suggest that xanthine oxidase is expressed in smooth muscle cells and endothelial cells. The identification of xanthine oxidase in the plaque of disease arteries and arterialized vein graft suggest a possible relationship between the presence of xanthine oxidase and the development of atherosclerosis and/or intimai hyperplasia.
Vibrational Relaxation in Metalloporphyrin CO Complexes (1996)

ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTVibrational Relaxation in Metalloporphyrin CO ComplexesDana D. Dlott, M. D. Fayer, Jeffrey R. Hill, C. W. Rella, Kenneth S. Suslick, and Christopher J. ZieglerView Author Information Department of Chemistry University of Illinois at Urbana-Champaign Urbana, Illinois 61801 Department of Chemistry Stanford University Stanford, California 94305 Cite this: J. Am. Chem. Soc. 1996, 118, 33, 7853–7854Publication Date (Web):August 21, 1996Publication History Received6 May 1996Published online21 August 1996Published inissue 1 January 1996https://pubs.acs.org/doi/10.1021/ja961494whttps://doi.org/10.1021/ja961494wrapid-communicationACS PublicationsCopyright © 1996 American Chemical SocietyRequest reuse permissionsArticle Views308Altmetric-Citations28LEARN 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 SUBJECTS:Carbonyls,Metals,Oscillation,Pyrroles,Solvents Get e-Alerts
<title>Stepped-frequency ground-penetrating radar for detection of small nonmetallic buried objects</title> (1997)

A monostatic amplitude and phase stepped-frequency radar approach have been proposed to detect small non-metallic buried anti-personnel (AP) mines. An M-56 AP-mine with a diameter of 54 mm and height of 40 mm, only, has been successfully detected and located in addition to small metallic mine-shaped objects. 2D probe-correction and addition signal processing are applied to the raw probe- data. The probe used in this experiment was an open-ended waveguide operating at S-band. The movements of the probe are controlled by two stepmotors via an RS-232 interface. The probe is connected to an HP8753C Network Analyzer through a 5 m long Sucoflex coaxial cable. The data are collected automatically using an HPIB interface. The collected data contains both the amplitude and phase information of the reflection coefficient.Data are measured at up to a maximum of 401 different frequencies at each measurement point using a mesh-grid with a resolution down to 1 mm by 1 mm. The size of the scan area is 1410 mm by 210 mm. Measurements have been performed on loamy soil containing a buried M-56, a non-metallic AP-mine, and various other mine-like objects made of solid plastic, brass, aluminum, steel, and wood. The presented results are based on probe-data measured at 100 different frequencies at each measurement point and a coarser mesh-grid of 10 mm by 10 mm, since it is found that less probe-data is needed. Our experiments show that even less amount of probe-data may be necessary.
Path planning for mobile robots in the real world: handling multiple objectives, hierarchical structures and partial information (2018)

Autonomous robots in real-world environments face a number of challenges even to accomplish apparently simple tasks like moving to a given location. We present four realistic scenarios in which robot navigation takes into account partial information, hierarchical structures, and multiple objectives. We start by discussing navigation in indoor environments shared with people, where routes are characterized by effort, risk, and social impact. Next, we improve navigation by computing optimal trajectories and implementing human-friendly local navigation behaviors. Finally, we move to outdoor environments, where robots rely on uncertain traversability estimations and need to account for the risk of getting stuck or having to change route.
Modelling the RF source in GDOES (2003)

An equivalent model of an asymmetric radiofrequency (RF) powered glow discharge (GD) plasma is combined with an equivalent circuit of the stray cell capacitance, coaxial cable connection, matching box and power generator needed to drive it, to provide an electrical model of the impedance-matched RF source commonly used in GDOES. Component values in the matching circuit are determined in situ using procedures provided. The resulting model is then used to calculate plasma resistances based on the matching box settings. As a test of the model, these plasma resistances are then used as emission yield corrections in a multi-matrix calibration, and compared with the more familiar VDC corrections.
A Study of Flotation Column Performance for the Recovery of Fine Particles (1990)

Abstract The performance of a laboratory-scale flotation column has been experimentally investigated for the recovery of fine particles (-200 mesh). The column operation has been found to be exceptionally stable, and the solid particles (calcite) recovery to depend upon the pulp, gas, and washwater flow rates. An optimum performance can be achieved for a range of operating variables which depends upon the physical-chemical characteristics of the mineral system and also the geometrical features of the particular column in use.