gebhart/patrepeval huggingface dataset:
An experimental study on object recognition and enhancement in MWIR thermography (2009)

An infrared (IR) camera is one of the common tools for taking images for thermography analysis in the medical field. In this paper, object recognition using infrared images captured with a middle wave infrared (MWIR) camera is studied. By using the InSb detector, the MWIR system used in this study operates in the 3-5 μm waveband, and it is well-suited for highend research and development applications. To enhance the applicability of MWIR thermography to medical-related problems, it is important to devise reliable recognition and enhancement techniques for MWIR images. In this work, an experimental study is conducted to identify the capability of MWIR thermography in distinguishing an object (a human hand) from its background with varying emissivity and temperature levels. It is observed that object recognition becomes difficult when the emissivity difference is within 0.01 under the temperature condition of within 1°C for the object and the background. In addition, a histogram equalisation approach is utilised to enhance blurry images from the MWIR system. The results demonstrate the histogram equalisation method is able to expand the dynamic range expansion of image grey levels so that the output image becomes clear and visible for object recognition.
Li Ion Conductive Electrolytes Based on Poly(vinyl chloride) (1993)

New Li ion conductive solid electrolytes with a conductivity of about 10−3 Ω−1 · cm−1 at room temperature have been prepared. Li ion conductivity in the electrolytes has been demonstrated with the cycling of and solid‐state cells.
Sakacin B, a bacteriocin produced by Lactobacillus sake isolated from Greek dry fermented sausages (1994)

When Lactobacillus sake 251, a strain isolated from naturally fermented Greek dry sausage was grown in MRS broth it excreted an antimicrobial factor that differed from organic acids and hydrogen peroxide. The substance was proteinaceous, heat stable and inhibitory towards various lactic acid bacteria of meat origin. This suggested that a narrow spectrum bacteriocin, designated sakacin B, was present in the broth. Sakacin B displayed a bactericidal mode of action on sensitive cells without causing cell lysis. It was secreted during late logarithmic phase and was stable within a pH range 2 to 9. In vitro production of sakacin B by the producer strain in a mixed culture caused a strong biocidal effect on growing indicator cells. Sakacin B was partially purified and found not to contain unusual amino acids. That it was a hydrophobic peptide was confirmed by SDS‐PAGE electrophoresis. The molecular weight of sakacin B was estimated to be 6.3 kDa.
Ambient vibration studies for system identification of tall buildings (2002)

Abstract The performance of a building under wind and seismic loads depends on stiffness and mass distribution, and may be estimated using finite element codes. Experience has, however, shown that such finite element models often fail to predict accurately the fundamental natural frequencies. Usually the frequencies will be underestimated, that is the building will turn out to be stiffer than anticipated, meaning the design would usually be conservative. On the other hand, effects like torsional eccentricity and foundation compliance may not be correctly modelled, which could be less desirable. A full understanding of linear performance under lateral loads can be obtained through experimental evaluation of the vibration modes. Traditionally only a limited range of modal analysis procedures and software has been applied to civil applications and the ‘special case’ where no input forces can be measured has been the usual situation for large civil structures. Recent developments in system identification, which is the set of procedures to build mathematical models of the dynamic structural systems based on measured data, have added significantly to the potential of ambient vibration or ‘output only’ testing. The aim of the research reported here has been to apply and evaluate the procedures on typical buildings. The procedures are briefly explained and two experimental programmes are then described; a long‐term tremor monitoring exercise on a 280m office tower and an ambient vibration survey of a smaller office block. The different forms of response data are examined to study the performance of the analysis procedures and expose benefits and limitations in their use. There is a growing interest in output‐only modal analysis procedures in civil engineering. The experience reported in this paper has shown that quick and reliable estimation of mode shapes and frequencies can be obtained, even with small amounts of data. Judgement of modal participation and damping ratios requires more detailed study yet the results are at least as convincing as existing and relatively limited frequency domain methods. Copyright © 2002 John Wiley & Sons, Ltd.
Culture expérimentale de l'algue Undaria pinnatifida sur les côtes de France (1984)

En 1971, un ostréiculteur de l'étang de Thau (lagune méditerranéenne) découvrait dans son parc à huîtres une algue qui lui paraissait étrange pour le lieu : il s'agissait en effet de l'espèce Undaria pinnatifida (Harvey) Suringar, originaire du Japon, sans doute introduite involontairement sous forme de plantules, ou de spores en même temps que le naissain d'huîtres importé d'Extrême-Orient. Loin de disparaître, l'espèce a peu à peu étendu son aire de répartition dans l'étang en se fixant indifféremment sur les structures qui soutiennent les parcs et sur les poches à moules ou à huîtres. En 1981, elle a franchi les limites du bassin de Thau puisqu'on la signale en milieu ouvert le long des digues protégeant le port de Sète. On ne devrait pas être surpris qu'elle se répande progressivement le long du rivage méditerranéen.
Unique structural features and differential phosphorylation of the 280-kDa component (isozyme) of rat liver acetyl-CoA carboxylase. (1994)

Rat liver acetyl-CoA carboxylase (ACC, EC 6.4.1.2) exhibits major and minor subunits (M(r) of 265,000 and 280,000 respectively), the structure and function of which are compared in this study. The two subunits copurified and each contained biotin as demonstrated by avidin reactivity and direct determination of biocytin. In agreement with previous studies, the ACC subunits could be distinguished with specific monoclonal antibodies and differential tissue expression. We now report extensive differences in primary structure revealed by peptide mapping, mass spectrometric analysis of peptides following reverse phase high performance liquid chromatography, and microsequencing of selected peptides. Four peptides derived from the 265-kDa subunit were sequenced and matched sequences within the predicted structure of rat 265-kDa ACC. Although one identical peptide sequence was detected within both subunits (residues 2009-2024 of the 265-kDa subunit), 12 peptides derived from the 280-kDa subunit exhibited entirely novel sequences or matched partially (average 70% identity) with sequences within the 265-kDa subunit. The 280-kDa subunit may also exhibit distinct functional properties, since the initial rate of phosphorylation was at least 10-fold greater than that of the 265-kDa subunit in the presence of cAMP-dependent protein kinase. Two-dimensional mapping demonstrated that the tryptic phosphopeptides released from the two ACC subunits are distinct. These structural studies suggest that the 265- and 280-kDa components (isozymes) of ACC are so distinct they may be encoded by separate genes, while the differential phosphorylation observed in vitro suggests a key role for the 280-kDa subunit in regulating enzyme activity within intact cells.
Osteopontin expression and distribution in human carcinomas. (1994)

Osteopontin (OPN), a secreted adhesive glycoprotein, is significantly overexpressed in a variety of experimental models of malignancy. Moreover, increased levels of OPN have been detected in the blood of patients with metastatic carcinoma. To investigate OPN expression and distribution in human carcinomas directly, we studied a wide variety of common tumors by Northern analysis, in situ hybridization, and immunohistochemistry. All 14 tumors studied by Northern analysis showed very substantial increases in OPN messenger (m)RNA when compared to corresponding normal tissues. Moreover, intense labeling for OPN mRNA was detected in 71 of 76 carcinomas studied by in situ hybridization. In most of the carcinomas studied (colon, stomach, duodenum, pancreas, breast, lung, bladder, prostate, ovary, thyroid, and melanoma), tumor cells did not label detectably for OPN mRNA; however, macrophages intimately associated with tumor cells labeled strongly for the OPN transcript. In carcinomas of the kidney and endometrium, both tumor cells and host macrophages labeled strongly for OPN mRNA. The presence of OPN mRNA in macrophages was particularly pronounced at the edge of tumors (ie, the tumor/stroma interface) and in areas of tumor necrosis. Although in most cases tumor cells did not label detectably for OPN mRNA, both tumor cells and macrophages stained for OPN protein, suggesting that OPN secreted by macrophages may bind to tumor cells, possibly through the glycine-arginine-glycine-aspartate-serine cell binding domain in OPN. Collectively, these data suggest that OPN functions in adhesive interactions at the tumor/host interface and thereby may influence processes such as invasion and metastasis.
ChemInform Abstract: Design and Synthesis of a Conformationally Restricted trans Peptide Isostere Based on the Bioactive Conformations of Saquinavir and Nelfinavir. (2001)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Application of Peptide LC Retention Time Information in a Discriminant Function for Peptide Identification by Tandem Mass Spectrometry (2004)

We describe the application of a peptide retention time reversed phase liquid chromatography (RPLC) prediction model previously reported (Petritis et al. Anal. Chem. 2003, 75, 1039) for improved peptide identification. The model uses peptide sequence information to generate a theoretical (predicted) elution time that can be compared with the observed elution time. Using data from a set of known proteins, the retention time parameter was incorporated into a discriminant function for use with tandem mass spectrometry (MS/MS) data analyzed with the peptide/protein identification program SEQUEST. For singly charged ions, the number of confident identifications increased by 12% when the elution time metric is included compared to when mass spectral data is the sole source of information in the context of a Drosophila melanogaster database. A 3-4% improvement was obtained for doubly and triply charged ions for the same biological system. Application to the larger Rattus norvegicus (rat) and human proteome databases resulted in an 8-9% overall increase in the number of confident identifications, when both the discriminant function and elution time are used. The effect of adding "runner-up" hits (peptide matches that are not the highest scoring for a spectra) from SEQUEST is also explored, and we find that the number of confident identifications is further increased by 1% when these hits are also considered. Finally, application of the discriminant functions derived in this work with approximately 2.2 million spectra from over three hundred LC-MS/MS analyses of peptides from human plasma protein resulted in a 16% increase in confident peptide identifications (9022 vs 7779) using elution time information. Further improvements from the use of elution time information can be expected as both the experimental control of elution time reproducibility and the predictive capability are improved.
Twelve geometric essays, by H. S. M. Coxeter. Southern Illinois University Press, Carbondale, Illinois, 1968. xiii + 242 pages. U.S. $7.00. (1969)

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Layered Magnetic Structures: Evidence for Antiferromagnetic Coupling of Fe Layers across Cr Interlayers (1986)

We investigated exchange coupling of Fe layers across Au and Cr interlayers by means of light scattering from spin waves. For Au interlayers we find a continuous decrease of this coupling to zero as the Au thickness is increased from 0 to \ensuremath{\cong}20 \AA{}. For Cr interlayers of proper thickness we find antiferromagnetic coupling of the Fe layers. In small external fields such double layers order antiparallel with their magnetization perpendicular to the external field, in analogy to the spin-flop phase of antiferromagnets.
A monolithic line interface circuit for T1 terminals (1987)

The paper will cover an interface circuit capable of driving 25 ohm lines, that contains a pulse-shaping driver and a PLL for clock and data recovery. The circuit has been fabricated in 3μm CMOS.
Fractal features of soil particle size distributions and their potential as an indicator of Robinia pseudoacacia invasion1 (2018)

To study the fractal dimensions of the soil particle size distributions (PSDs) within different plantations (of Pinus densiflora, Quercus acutissima, Robinia pseudoacacia, and Larix kaempferi) and evaluate PSDs as an indicator of the likelihood of Robinia pseudoacacia invasion, the soil porosity of 0-20 cm soil layers was measured at different plantations in the Yaoxiang Forest Farm, Shandong Province, China. The results showed that the fractal dimension (D<sub>m</sub>) values varied from 2.59 to 2.70 among the different plantations and were significantly negatively correlated to sand content and positively correlated to silt content and clay content. Significant negative correlations were observed between D<sub>m</sub> and both soil organic matter (SOM) (P < 0.05) and available phosphorus (P < 0.01). The multifractal entropy dimension (D<sub>1</sub>) and entropy dimension/capacity dimension (D<sub>1</sub>/D<sub>0</sub>) parameters were not significantly correlated with SOM, although significant correlations were found between SOM and each of D<sub>0</sub>, Δα, and Δf(α). Compared with the other plantations, the Robinia pseudoacacia plantation had higher nutrient contents, higher D<sub>0</sub> and D<sub>1</sub> values and lower D<sub>m</sub> values. Based on principal component analysis (PCA) ordination, we concluded that Robinia pseudoacacia and Pinus densiflora shared a similar habitat and that Robinia pseudoacacia is more likely to invade Pinus densiflora plantations for soil.
Dorsal skinfold chamber technique for intravital microscopy in nude mice. (1993)

For many years, observation chambers, implanted in various animal species and in man, have been used for intravital microscopy of the microcirculation in granulation tissue, preformed tissue, or of the microvascularization of tissue implants. We describe herein a skinfold chamber model for the intravital microscopic investigation of striated skin muscle in immunoincompetent, nude mice over a minimum period of 2 weeks. Using fluorescent markers for contrast enhancement of plasma (fluorescein isothiocyanate-dextran) and leukocytes (acridine orange), the presented model allows the quantitative analysis of 1) the microhemodynamic parameters microvessel diameter and red blood cell velocity in arterioles (16 to 50 mu diameter), capillaries (4 to 9 mu diameter), and post-capillary venules (19 to 60 mu diameter), 2) leukocyte/endothelium interaction in these vessel segments, 3) functional capillary density and intercapillary distance, and 4) endothelial cell integrity. These parameters can be assessed in the microcirculation of the striated muscle tissue under normal or pathological conditions, as well as in the microcirculation of transplanted xenogeneic (human) neoplastic and non-neoplastic tissue grafts.
The Effect of Size-Dependent Nanoparticle Energetics on Catalyst Sintering (2002)

Calorimetric measurements of metal adsorption energies directly provide the energies of metal atoms in supported metal nanoparticles. As the metal coverage increases, the particles grow, revealing the dependence of this energy on particle size, which is found to be much stronger than predicted with the usual Gibbs-Thompson relation. It is shown that this knowledge is crucial to accurately model long-term sintering rates of metal nanoparticles in catalysts.
Learning style analysis in surgical training. (1985)

Learning style analysis is being used at many educational levels to individualize the instructional process. The Kolb Learning Style Inventory (LSI) in particular has been employed to determine the learning preferences of medical students and physicians in family practice, internal medicine, and anesthesiology. This investigation was undertaken to discover whether there exists a characteristic learning profile for surgery as a specialty. The Kolb LSI was administered to 39 surgical personnel. Kolb's Converger was the preferred learning style type of the study group (46%). Accommodator (26%) and Assimilator (20%) were next, followed by Diverger (8%). These results suggest that there is an identifiable surgical learning style that can provide a referential basis for teaching and counseling during residency training.
Microstrip Dipole Antenna Analysis with Different Width and Length at 2.4 GHz (2006)

This paper discusses the design and simulation of microstrip dipole antenna at 2.4 GHz. In this antenna design, Agilent's Advanced Design System (ADS) software using momentum simulation is employed to analyze the entire structure. Different width (W = 3, 5, 7, 9 mm) of the arm of dipole antenna is analyzed to study on the performance of frequency resonance. From the simulation, the wider the width will lower the resonance frequency of the antenna. Different width makes the frequency resonance of the antenna shifting lower or higher than 2.4 GHz. In this case, the length (L) of the dipole arm needs changes. Optimization value of the length is needed to make the frequency resonance at 2.4 GHz. The simulation result gives the bandwidth achieved of this microstrip dipole antenna is between 11 and 13 %. Three different width of dipole antenna have been fabricated and presented here in this paper. The properties of antenna such as input return loss and bandwidth have been investigated and compared between simulations.
Chemical Reactivity of Methoxy 4-<i>O</i>-Aryl Quinolines: Identification of Glutathione Displacement Products in Vitro and in Vivo (2008)

AMG 458 {1-(2-hydroxy-2-methylpropyl)-N-[5-(7-methoxyquinolin-4-yloxy)pyridin-2-yl]-5-methyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxamide} is a potent, selective inhibitor of c-Met, a receptor tyrosine kinase that is often deregulated in cancer. AMG 458 was observed to bind covalently to liver microsomal proteins from rats and humans in the absence of NADPH. When [14C]AMG 458 was incubated with liver microsomes in the presence of glutathione and N-acetyl cysteine, thioether adducts were detected by radiochromatography and LC/MS/MS analysis. These adducts were also formed upon incubation of AMG 458 with glutathione and N-acetyl cysteine in buffers at pH 7.4. In vivo, the thioether adducts were detected in bile and urine of bile duct-cannulated rats dosed with [14C]AMG 458. The two adducts were isolated, and their structures were determined by MS/MS and NMR analysis. The identified structures resulted from a thiol displacement reaction to yield a quinoline thioether structure and the corresponding hydroxyaryl moiety. The insights gained from elucidating the mechanism of adduct formation led to the design of AMG 458 analogues that exhibited eliminated or reduced glutathione adduct formation in vitro and in vivo.
Effect on Multipotency and Phenotypic Transition of Unrestricted Somatic Stem Cells from Human Umbilical Cord Blood after Treatment with Epigenetic Agents (2015)

The epigenetic mechanism of DNA methylation is of central importance for cellular differentiation processes. Unrestricted somatic stem cells (USSCs) from human umbilical cord blood, which have a broad differentiation spectrum, reside in an uncommitted epigenetic state with partial methylation of the regulatory region of the gene coding for the pluripotency master regulator OCT4. Thus we hypothesized that further opening of this "poised" epigenetic state could broaden the differentiation potential of USSCs. Here we document that USSCs drastically change their phenotype after treatment by a new elaborated cultivation protocol which utilizes the DNA hypomethylating compound 5'-aza-2-deoxycytidine (5-Aza-CdR) and the histone deacetylase inhibitor trichostatin A (TSA). This treatment leads to a new stable, spheroid-forming cell type which we have named SpheUSSC. These cells can be stably propagated over at least 150 cell divisions, express OCT4, retain the potential to undergo osteogenic differentiation, and have additionally acquired the ability to uniformly differentiate into adipocytes, unlike the source USSC population. Here we describe our treatment protocol and provide evidence that it induces a dedifferentiation step and concomitantly the acquisition of an extended differentiation capability of the new SpheUSSC type.
Revisiting [3 + 3] Route to 1,3-Cyclohexanedione Frameworks:  Hidden Aspect of Thermodynamically Controlled Enolates (2001)

We have revisited the traditional consecutive Michael-Claisen [3 + 3] process (MC-[3 + 3]) promising the synthesis of a cyclohexane-1,3-dione derivatives from nonactivated simple ketones and enoates and evaluated its potential in modern organic synthesis. Twenty to thirty examples were demonstrated to be effective. The reactions exhibited remarkable regioselectivity with the Michael addition proceeding through nucleophilic attack by the more hindered site of the ketones without exception. The subsequent Claisen condensation resulted in the formation of carbon-carbon bonds between less hindered site of the ketones and acyl carbon of the enoates. The MC-[3 + 3] process described is useful for the synthesis of Taxol A-ring synthons in multigram quantities and for the synthesis of other six-membered carbocyclic compounds. A number of control experiments have been conducted to provide strong support for the mechanism of this MC-[3 + 3].
Active Magnesia. II. Adsorption of Fluoride from Aqueous Solution (1947)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTActive Magnesia. II. Adsorption of Fluoride from Aqueous SolutionAlbert C. Zettlemoyer, Earl A. Zettlemoyer, and William C. WalkerCite this: J. Am. Chem. Soc. 1947, 69, 6, 1312–1315Publication Date (Print):June 1, 1947Publication History Published online1 May 2002Published inissue 1 June 1947https://pubs.acs.org/doi/10.1021/ja01198a023https://doi.org/10.1021/ja01198a023research-articleACS PublicationsRequest reuse permissionsArticle Views185Altmetric-Citations16LEARN 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