gebhart/patrepeval huggingface dataset:
<title>Adaptive penetration control using infrared measured temperature gradients</title> (1993)

In this paper, the effects of shielding gases on weld penetration were studied using infrared sensors. Argon, helium and mixtures of these gases were used in the experiments. Autogenous bead-on-plate welds were made keeping all welding variables except the shielding gas composition constant. Dynamic changes in the shielding gas composition were then introduced and corresponding changes in the thermal distribution of the molten pool and surrounding region monitored. After the fact metallography was used to determine puddle dimensions. These results were then compared to the infrared surface temperature measurements. Gradients in the molten metal pool were found to dramatically change as the puddle shape changed when a different shielding gas composition was introduced. This behavior was used in implementing dynamic weld penetration control.
Designing an extended release waxy matrix tablet containing nicardipine–hydroxy propyl β cyclodextrin complex (2011)

The prepared waxy matrix tablet containing NC complexes with CD shows promising results as extended release tablets.
<title>Identification of the dynamic behavior of bridges under ambient excitation using wavelet transform</title> (1996)

This paper deals with the identification of the dynamic behavior of bridges under ambient excitation. The technique here presented allows the estimation of modal parameters using transient data excitations, i.e., the vehicle passage, without requiring any traffic limitation, this fact representing a consistent advantage of the motorway companies. In this paper, the wavelet transform as a time- frequency distribution is proposed for system identification under different traffic conditions: particularly, it is shown how the wavelet analysis of the free response of a real system allows the estimation of natural frequencies, viscous damping ratios and mode shapes with a good precision. The accuracy of this identification technique is firstly proved performing the analysis on a mathematical model of a multi-supported beam with moving loads, simulating a bridge excited by traffic; finally, the acceleration responses from a real bridge, the Queensborough Bridge in Vancouver, Canada, under ambient excitations, are successfully analyzed. The results obtained using this procedure show a good agreement with those already presented in other papers referred to the dynamic identification of the same Queensborough Bridge and reported in references.
NLRP3 Controls the Development of Gastrointestinal CD11b+ Dendritic Cells in the Steady State and during Chronic Bacterial Infection (2017)

The gastric lamina propria is largely uncharted immunological territory. Here we describe the evolution and composition of the gastric, small intestinal, and colonic lamina propria mononuclear phagocyte system during the steady state and infection with the gastric pathogen Helicobacter pylori. We show that monocytes, CX<sub>3</sub>CR1<sup>hi</sup> macrophages, and CD11b<sup>+</sup> dendritic cells are recruited to the infected stomach in a CCR2-dependent manner. All three populations, but not BATF3-dependent CD103<sup>+</sup> DCs, sample red fluorescent protein (RFP)<sup>+</sup>Helicobacter pylori (H. pylori). Mice reconstituted with human hematopoietic stem cells recapitulate several features of the myeloid cell-H. pylori interaction. The differentiation in and/or recruitment to gastrointestinal, lung, and lymphoid tissues of CD11b<sup>+</sup> DCs requires NLRP3, but not apoptosis-associated speck-like protein containing a carboxy-terminal CARD (ASC) or caspase-1, during steady-state and chronic infection. NLRP3<sup>-/-</sup> mice fail to generate Treg responses to H. pylori and control the infection more effectively than wild-type mice. The results demonstrate a non-canonical inflammasome-independent function of NLRP3 in DC development and immune regulation.
Search for<i>CP</i>violation in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="italic">D</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>decay (1995)

Using 2.7 ${\mathrm{fb}}^{\mathrm{\ensuremath{-}}1}$ of data taken with the CLEO II detector, we have searched for CP violation in the charm system. We looked for asymmetries in the number of decays of ${\mathit{D}}^{0}$'s and D${\mathrm{\ifmmode\bar\else\textasciimacron\fi{}}}^{0}$'s to the CP eigenstates ${\mathit{K}}^{+}$${\mathit{K}}^{\mathrm{\ensuremath{-}}}$, ${\mathit{K}}_{\mathit{S}}^{0}$\ensuremath{\varphi}, and ${\mathit{K}}_{\mathit{S}}^{0}$${\mathrm{\ensuremath{\pi}}}^{0}$. Confidence intervals (90%) on these asymmetries were found to be -0.020${\mathit{A}}_{\mathit{K}\mathit{K}}$0.180, -0.182${\mathit{A}}_{\mathit{K}\mathit{S}}^{0}$\ensuremath{\varphi}0.126, and -0.067${\mathit{A}}_{\mathit{K}\mathit{S}}^{0}$${\mathrm{\ensuremath{\pi}}}^{0}$0.031, respectively.
Zirconia–alumina mixing in alumina-supported zirconia prepared by impregnation with solutions of zirconium acetylacetonate (2003)

Materials containing 2–20 wt% zirconia supported on γ-alumina were prepared by multiple step incipient wetness impregnation with solutions of zirconium acetylacetonate in benzene. The materials were calcined at 823 K and were characterised by X-ray diffraction, XPS, DRS in the UV-visible region and FTIR in the regions of OH stretching and skeletal vibrations of adsorbed pyridine. The results demonstrated that the zirconium is present as isolated species at the surface and in the bulk of a mixed zirconia–alumina phase formed by migration of the zirconium ions into the subsurface layers of the support. The presence of zirconia at the alumina surface caused the appearance of basic hydroxyl groups bonded to a single zirconium ion, of weak Lewis acidic sites, probably associated with zirconium sites, and a decrease in concentration of stronger Lewis sites associated with the alumina surface.
Low cost approach to IGCC power generation (1986)

The US Department of Energy is currently sponsoring a variety of projects aimed at developing advanced systems for power generation. One of the most promising of these systems uses the integrated gasification combined-cycle concept with hot gas cleanup to control coal contaminants. It has been termed a gasification island concept by the Morgantown Energy Technology Center (METC). This paper discusses an approach that leads to this concept and the status of its development. Significant results of DOE-sponsored projects related to this concept reviewed. 5 references, 8 figures, 2 tables.
ChemInform Abstract: ANCHIMER BESCHLEUNIGTE SULFOXID‐RK. 6. MITT. 4‐, 5‐ UND 6‐GLIEDRIGE 2‐BENZYLSULFINYL‐CYCLOALKANCARBONSAEURE‐RINGSYST., KORRELATION ZWISCHEN STRUKTUR UND REAKTIVITAET (1971)

Abstract Die basenkatalysierte (Piperidin/Triton B) nucleophile Addition von Benzylmercaptan (II) an die Cycloalkene (I) liefert trennbare Gemische (75‐90% Ausbeute) der cis‐ (III) und trans‐Thiole (IV), die durch Oxidation in entsprechende Sulfoxide, bestehend jeweils aus syn‐ (V) bzw. (VIII) und anti‐ Isomeren (VI) bzw. (IX) und weiter in Sulfone (VII) bzw. (X) übergeführt werden.
An efficient implementation of the low-complexity multi-coset sub-Nyquist wideband radar electronic surveillance (2014)

The problem of efficient sampling of wideband radar signals for Electronic Surveillance (ES) using a parallel sampling structure will be investigated in this paper. Wideband radio frequency sampling, which is a necessary component of the modern digital radar surveillance systems, needs a sampling rate at least twice the maximum frequency of signals, i.e. Nyquist rate, which is generally very high. Designing an analog to digital converter which works with such a high sampling rate is difficult and expensive. The standard wideband ES receivers use the rapidly swept superheterodyne technique, which selects a subband of the spectrum at a time, while iterating through the whole spectrum sequentially. Such a technique does not explore the underlying structure of input RF signals. When the signal is sparsely structured, we can use the fact that signals do not occupy the whole spectrum. There indeed exists a parsimonious structure in the time-frequency domain in radar ES signals. We here use a recently introduced low-complexity sampling system, called LoCoMC [1], which is inspired by the compressive sampling (CS) of sparse signals and it uses the multi-coset sampling structure, while it does not involve a computationally expensive reconstruction step. A new implementation technique is here introduced, which further reduces the computational cost of the reconstruction algorithm by combining two filters, while improving the accuracy by implicitly implementing an infinite length filter. We also describe the rapidly swept superheterodyne receiver and compare it with the LoCoMC algorithm. In a contrast to the former technique, LoCoMC continuously monitors the spectrum, which makes it much more robust in the short pulse detection.
Competitive inhibition of nitric oxide synthase prevents the cortical hyperemia associated with peripheral nerve stimulation. (1992)

With combined microdialysis and hydrogen clearance techniques for simultaneous local delivery of drugs and blood-flow measurement in the rat hindlimb sensory-motor cortex, we examined the role of nitric oxide in cerebral blood-flow regulation during sciatic nerve stimulation. Infusion of 1 mM nitric oxide synthase antagonist, N eta-nitro-L-arginine methyl ester (L-NAME), blocked the cortical blood-flow response to sciatic nerve stimulation (152 +/- 43 ml.min-1.100 g-1 of tissue in controls and 73 +/- 11 ml.min-1.100 g-1 in the presence of L-NAME; P less than 0.05). Addition of 10 mM L-arginine to the dialysate containing L-NAME partially restored the hyperemic response to nerve stimulation (125 ml.min-1.100 g-1). L-NAME also produced a decrease in baseline cerebral blood flow when compared with the control (66 +/- 14 ml.min-1.100 g-1 vs. 93 +/- 25 ml.min-1.100 g-1). We conclude that nitric oxide from activated neurons participates in the local regulation of cortical blood flow in response to sciatic nerve stimulation and also in the maintenance of basal cortical blood flow.
Molecular Geometry and Bonding (2012)

This chapter presents forty-eight problems covering the subject of molecular geometry and bonding, along with the corresponding solutions.
Dampening oncogenic RAS signaling (2019)

Recent insights into the mechanism of oncogenic RAS prompt new anticancer strategies
Differentiation stage and lineage-specific inhibitor from the stroma of mouse bone marrow that restricts lymphoma cell growth. (1986)

We have examined the mechanism by which stromal cells from the microenvironment of the bone marrow restricted the in vitro growth of certain hemopoietic tumors. A series of leukemia cell lines was used to monitor biological activities of stromal cell lines representing five distinct subtypes. Only an endothelial-like clone derived from mouse stroma (MBA-2.1) was consistently found to produce a cell-surface-associated glycoprotein that selectively inhibited the growth of plasmacytomas. The factor, designated leukemia cell inhibitory activity (LCIA), was not detected in anchorage-dependent cells of nonhemopoietic origin. Tumors of the lymphoid lineage and plasmacytomas in particular were the most sensitive to LCIA. Myeloid, macrophage, and erythroleukemia tumors were resistant to the factor, as were normal hemopoietic target cells including pluripotent stem cells, myeloid progenitor cells, and mitogen-stimulated spleen cells. Fractionation of trypsin-released proteins from MBA-2.1 cells by gel filtration and affinity binding to concanavalin A-Sepharose revealed two types of inhibitors; one was the specific leukemia cell inhibitor (i.e., LCIA); the other, present at a lower titer, was non-target-cell specific. The high sensitivity of plasmacytomas to LCIA versus the resistance of normal stem cells may be utilized for selective elimination of plasma cell tumors from bone marrow inocula.
Dynamic program modification in telecommunications systems (1989)

In today's public telecommunications network, the logic of telecommunications services is typically defined in software that executes in stored program control switching systems or other network elements. Changes in network functionality require that new versions of software be installed in these network elements, a process that has proven inconvenient and error-prone. The authors expect that changes to network software will occur with increasing frequency in the future, exacerbating the software update problem. They discuss the requirements for performing software updates in the telecommunications network and describe a specific approach that allows dynamic modification of programs running in a distributed environment. They also discuss the implications of this approach for the design of telecommunications software.
Millijoule femtosecond pulses at 1937 nm from a diode-pumped ring cavity Tm:YAP regenerative amplifier (2018)

We present an infrared source operating at 1937 nm center wavelength capable of generating 1.35 mJ pulse energies with 1 kHz repetition rate and 2 GW peak power based on a diode-pumped Tm:YAP regenerative amplifier. The obtained pulses after 45 round trips have been compressed down to 360 fs. Using only a small portion (15 μJ) of the output of the system we managed to generate a white light continuum in a 3 mm YAG window that exhibits the viability of the system as a suitable candidate for a pumping source of a mid-infrared optical parametric amplifier.
Sphingosine 1‐phosphate but not Fingolimod protects neurons against excitotoxic cell death by inducing neurotrophic gene expression in astrocytes (2019)

Sphingosine 1-phosphate (S1P) is an essential lipid metabolite that signals through a family of five G protein-coupled receptors, S1PR1-S1PR5, to regulate cell physiology. The multiple sclerosis drug Fingolimod (FTY720) is a potent S1P receptor agonist that causes peripheral lymphopenia. Recent research has demonstrated direct neuroprotective properties of FTY720 in several neurodegenerative paradigms; however, neuroprotective properties of the native ligand S1P have not been established. We aimed to establish the significance of neurotrophic factor up-regulation by S1P for neuroprotection, comparing S1P with FTY720. S1P induced brain-derived neurotrophic factor (BDNF), leukemia inhibitory factor (LIF), platelet-derived growth factor B (PDGFB), and heparin-binding EGF-like growth factor (HBEGF) gene expression in primary human and murine astrocytes, but not in neurons, and to a much greater extent than FTY720. Accordingly, S1P but not FTY720 protected cultured neurons against excitotoxic cell death in a primary murine neuron-glia coculture model, and a neutralizing antibody to LIF blocked this S1P-mediated neuroprotection. Antagonists of S1PR1 and S1PR2 both inhibited S1P-mediated neurotrophic gene induction in human astrocytes, indicating that simultaneous activation of both receptors is required. S1PR2 signaling was transduced through Gα<sub>13</sub> and the small GTPase Rho, and was necessary for the up-regulation and activation of the transcription factors FOS and JUN, which regulate LIF, BDNF, and HBEGF transcription. In summary, we show that S1P protects hippocampal neurons against excitotoxic cell death through up-regulation of neurotrophic gene expression, particularly LIF, in astrocytes. This up-regulation requires both S1PR1 and S1PR2 signaling. FTY720 does not activate S1PR2, explaining its relative inefficacy compared to S1P.
META-SAS: A Suite of SAS Programs to Analyze Multienvironment (2016)

Multienvironment trials (METs) enable the evaluation of the same genotypes under a v ariety of environments and management conditions. We present META (Multi Environment Trial Analysis), a suite of 31 SAS programs that analyze METs with complete or incomplete block designs, with or without adjustment by a covariate. The entire program is run through a graphical user interface. The program can produce boxplots or histograms for all traits, as well as univariate statistics. It also calculates best linear unbiased estimators (BLUEs) and best linear unbiased predictors for the main response variable and BLUEs for all other traits. For all traits, it calculates variance components by restricted maximum likelihood, least significant difference, coefficient of variation, and broad-sense heritability using PROC MIXED. The program can analyze each location separately, combine the analysis by management conditions, or combine all locations. The flexibility and simplicity of use of this program makes it a valuable tool for analyzing METs in breeding and agronomy. The META program can be used by any researcher who knows only a few fundamental principles of SAS.
Phototropic Behavior of 4-(p-Dimethylaminobenzeneazo)-phenylmercuric Acetate (1955)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhototropic Behavior of 4-(p-Dimethylaminobenzeneazo)-phenylmercuric AcetateM. G. Horowitz and I. M. KlotzCite this: J. Am. Chem. Soc. 1955, 77, 19, 5011–5012Publication Date (Print):October 1, 1955Publication History Published online1 May 2002Published inissue 1 October 1955https://pubs.acs.org/doi/10.1021/ja01624a017https://doi.org/10.1021/ja01624a017research-articleACS PublicationsRequest reuse permissionsArticle Views27Altmetric-Citations6LEARN 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
Trace element and isotopic evidence for temporal changes of the mantle sources in the South Shetland Islands, Antarctica (2008)

We present Sr-Nd-Pb isotope data from the Paleocene-Eocene volcanic rocks in King George Island, South Shetland Islands, West Antarctica. The initial isotopic ratios of the analyzed samples display limited variations: 143Nd/144Nd, 0.512790 to 0.512905 (εNd, +4.2 to +6.5); 87Sr/86Sr, 0.703342 to 0.703877 (εSr, -15.6 to -8.0); 206Pb/204Pb, 18.48 to 18.64; 207Pb/204Pb, 15.50 to 15.64; 208Pb/204Pb, 37.99 to 38.41. We interpret these data in combination with previously published trace and isotope data for Meso-Cenozoic volcanic rocks in the South Shetland Islands to gain a better understanding of the geochemical evolution of the mantle source region. The studied rocks are from four volcanic islands and range in age from 143 to 44 Ma. They have high abundances of large ion lithophile elements and light rare earth elements relative to high field strength elements, consistent with products of subduction related magmatism. The systematic inter-island variations are recognized from a comprehensive examination of the trace elements and isotopic compositions. The degree of enrichment of Sr-Nd-Pb isotopic compositions decreases towards younger samples, while the ratios of fluid-mobile elements/HFSE (Sr/Yb, Pb/Yb and U/Yb) gradually increase. The previous studies on these volcanic rocks concluded that the compositional variations of the South Shetland Islands volcanic suites were mainly controlled by two component mixing between altered MORB and Pacific sediments. However, we here propose that the compositional trends observed in the volcanic rocks of the South Shetland Islands can be created from the addition of a relatively constant subduction component to temporally varying heterogeneous mantle sources. The higher radiogenic Pb and Sr isotopes and lower 143Nd/144Nd ratios of the older volcanic rocks from Greenwich and Livingston islands compared to younger rocks can be explained by the significant influence of enriched previously metasomatized mantle material rather than fluids or sediment melts from the subducting slab. In contrast, the geochemical nature of the youngest King George Island volcanic rocks suggests a relatively large contribution of a slab-derived fluid component to the magma generation, but a minor role of the enriched component.
Characterization of and constricted high pressure arcs by magnetic balancing (1980)

A simple method is proposed to characterize the shape of the temperature profile of the arc in high-pressure discharge lamps. The method is based on the balancing of natural convection by external magnetic forces in the horizontal burning position. Experimental results are given for some well-known lamp systems including the mercury arc, the tin halide arc and the sodium-thallium-indium iodide arc, under various conditions. The results are in accordance with the trends observed in practice. Results are also given for rare-earth iodide arcs. In these systems arc motions occur under certain conditions. The nature of these phenomena is discussed.
Optimization of X-ray sources from a high-average-power ND:Glass laser-produced plasma for proximity lithography (1996)

The concept of a laser-based proximity lithography system for electronic microcircuit production has advanced to the point where a detailed design of a prototype system capable of exposing wafers at 40 wafer levels per hr is technically feasible with high-average-power laser technology. In proximity x-ray lithography, a photoresist composed of polymethyl- methacrylate (PMMA) or similar material is exposed to x rays transmitted through a mask placed near the photoresist, a procedure which is similar to making a photographic contact print. The mask contains a pattern of opaque metal features, with line widths as small as 0.12 {mu}m, placed on a thin (1-{mu}m thick) Si membrane. During the exposure, the shadow of the mask projected onto the resist produces in the physical and chemical properties of the resist a pattern of variation with the same size and shape as the features contained in the metal mask. This pattern can be further processed to produce microscopic structures in the Si substrate. The main application envisioned for this technology is the production of electronic microcircuits with spatial features significantly smaller than currently achievable with conventional optical lithographic techniques (0.12 {micro}m vs 0.25 {micro}m). This article describes work on optimizing a laser-produced plasma x-ray source intended for microcircuit production by proximity lithography.