gebhart/patrepeval huggingface dataset:
Ultrathin MoSe2@N-doped carbon composite nanospheres for stable Na-ion storage (2017)

Two-dimensional transition metal dichalcogenides are widely studied as anode materials for metal ion batteries. This application requires high electric conductivity which can be achieved by forming composites with conductive carbon. In this work, we demonstrate the creation of nanospheres composed of Mo-based thin nanosheets (MoS<sub>2</sub>, MoSe<sub>2</sub> and Mo<sub>2</sub>C) uniform embedded within a N-doped carbon matrix. Using MoSe<sub>2</sub>/N-doped carbon nanospheres as an example, we investigate in detail the electrochemical property in Na ion storage and reveal the advantage over previously reported MoSe<sub>2</sub> electrodes (higher capacity and improved capacity retention up to 500 cycles). Furthermore, we provide evidence by ex situ x-ray diffraction to the nominal irreversible conversion reaction during the first discharge.
A Displacement Flow Immunosensor for Explosive Detection Using Microcapillaries (1997)

In this paper, we report on the characterization of a capillary-based displacement flow immunosensor for the explosive, 2,4,6-trinitrotoluene (TNT). Anti-TNT antibody is immobilized onto the silanized inner walls of a fused-silica capillary using a heterobifunctional cross-linker followed by saturating the capillary with fluorophore-labeled antigen. To perform the assay, an aliquot of target analyte solution is injected into the capillary column. The target analyte competes for the binding pocket of the fluorophore-labeled antigen, which is detected downstream. We have demonstrated that the sensitivity of the capillary-based immunosensor is improved by at least 3 orders of magnitude compared to packed-column or membrane-based displacement flow immunosensors. We have investigated the effect of flow rate and length of the capillary on the performance of the capillary immunosensor. We have demonstrated that, by the appropriate choice of an antibody, one can prepare a capillary immunosensor for the specific detection of TNT or as a detector for both TNT and its major metabolites. The limit of detection for TNT using the capillary immunosensor is 440 amol (100 μL injection of 1 pg/mL TNT solution). The relative standard deviation (RSD) of the area under the peaks resulting from 10 back-to-back 100 μL injections of 5 ng/mL TNT to the capillary immunosensor is 4%. The RSD for column-to-column variation is observed to be 5% (n = 5). The entire assay can be performed in less than 3 min.
Illumination Normalization Based on Weber's Law With Application to Face Recognition (2011)

Weber's law suggests that for a stimulus, the ratio between the smallest perceptual change and the background is a constant, which implies stimuli are perceived not in absolute terms but in relative terms. Inspired from this, we exploit and analyze a novel illumination insensitive representation of face images under varying illuminations via a ratio image, called “Weber-face,” where a ratio between local intensity variation and the background is computed. Experimental results on both CMU-PIE and Yale B face databases show that Weber-face performs better than the existing representative approaches.
Effect of the acyl substituent on the equilibrium constant for hydration of esters (1980)

Heats of hydrolysis have been measured for the trimethyl orthoesters of isobutyric, propionic, benzoic, methoxyacetic, chloroacetic, and cyanoacetic acids using aqueous acid with an organic cosolvent where necessary, and of the corresponding esters in alkaline solution. Solubilities or free energies of transfer from gas to aqueous solution have been measured, permitting calculation of the free energies of formation of the aqueous orthoesters, and by methods which we have published previously, calculation of the free energies of formation of the covalent hydrates of the esters, and the free energy changes for hydration of these esters.Using estimated pK a values equilibrium constants were calculated for the addition of hydroxide to the esters. The data are in good agreement with the appropriate Marcus equation relating rate and equilibrium constants with a value for b of 8.99 ± 0.17. This line was used to estimate the equilibrium constant for addition of hydroxide, and thence of water, to some additional esters where only the rate constant was available. Rate constants for hydrolysis of methyl esters in aqueous solution at 25 °C were calculated from literature data, correcting for the effect of other conditions as necessary. From the equilibrium constants for addition of water we could estimate the rate constants for uncatalyzed hydrolysis; for the cases where this rate constant has been measured, the agreement was satisfactory. For acid catalyzed hydrolysis the data permit a test of the two alternative mechanisms considered previously, namely specific acid catalysis and general acid catalysis with hydronium ion acting as a general acid. For esters the mechanism is clearly specific acid catalysis, but for aldehydes and ketones it appears very likely that the mechanism is general acid catalysis.
PpSP42 nucleotide and amino acid variation. (2020)

&lt;p&gt;(A) Weblogo illustrating the relative frequencies of nucleotide polymorphisms in wild caught &lt;i&gt;P&lt;/i&gt;. &lt;i&gt;papatasi&lt;/i&gt; populations from PPAW, PPJM, and PPJS. (B) Weblogo illustrating the relative frequencies of amino acid polymorphisms in wild caught &lt;i&gt;P&lt;/i&gt;. &lt;i&gt;papatasi&lt;/i&gt; populations from PPAW, PPJM, and PPJS.&lt;/p&gt; &lt;p&gt;(PPTX)&lt;/p&gt;
Effect of Reactive Channel Functional Groups and Nanoporosity of Nanoscale Mesoporous Silica on Properties of Polyimide Composite (2006)

Novel covalently bonded nanoscale mesoporous silica (NMS)/polyimide (ODPA−BAPP) nanocomposites were synthesized through the bridge 3-aminopropyltrimethoxysilane. Abundant reactive amino functional groups inside the mesopore channels of NMS can interconnect with numerous polyimide main chains, forming multilinked and complex NMS/PI networks. These multilinkages, NMS inherent nanoporosity, and the uniform dispersion of NMS in polyimide significantly improve thermal stability, mechanical properties, elongation, moisture absorption, and dielectric constant of these novel materials over those of neat polyimide. For instance, the storage modulus is increased by 160%, the decomposition temperature by 35.7 °C, and the glass transition temperature by 14.5 °C. The maximum elongation increases by 66%, hardly observed in other polyimide nanocomposites, probably because the covalent bond and NMS nanopore can absorb more energy than pristine poyimide before failure. The nanoporosity of the core of the NH2-NMS material within the nanocomposite film is most likely responsible for the decrease of dielectric constant by 10%.
Advanced Hierarchical Vesicular Carbon Co‐Doped with S, P, N for High‐Rate Sodium Storage (2018)

Hierarchical nanoscale carbons have received wide interest as electrode materials for energy storage and conversion due to their fast mass transfer processes, outstanding electronic conductivity, and high stability. Here, heteroatom (S, P, and N) doped hierarchical vesicular carbon (HHVC) materials with a high surface area up to 867.5 m<sup>2</sup> g<sup>-1</sup> are successfully prepared using a surface polymerization of hexachloro-cyclotriphosphazene (HCCP) and 4,4'-sulfonyldiphenol (BPS) on the ZIF-8 polyhedrons. Significantly, it is the first time to achieve a controllability of the wall thickness for this unique carbon, ranging from 18 to 52 nm. When utilized as anodes for sodium ion batteries, these novel carbon materials exhibit a high specific capacity of 327.2 mAh g<sup>-1</sup> at 100 mA g<sup>-1</sup> after 100 cycles, which can be attributed to the expanded interlayer distance and enhanced conductivity derived from the doping of heteroatoms. Importantly, a high capacity of 142.6 mAh g<sup>-1</sup> can be obtained even at a high current density of 5 A g<sup>-1</sup>, assigning to fast ion/electronic transmission processes stemming from the unique hierarchical vesicular structure. This work offers a new route for the fabrication/preparation of multi-heteroatom doped hierarchical vesicular materials.
Removal of SO2 and NOx from Simulated Flue Gases by Alkalized Alumina in a Radial Flow Fixed Bed (1978)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRemoval of SO2 and NOx from Simulated Flue Gases by Alkalized Alumina in a Radial Flow Fixed BedPedro M. Medellin, Eric Weger, and Milorad P. DudukovićCite this: Ind. Eng. Chem. Process Des. Dev. 1978, 17, 4, 528–536Publication Date (Print):October 1, 1978Publication History Published online1 May 2002Published inissue 1 October 1978https://pubs.acs.org/doi/10.1021/i260068a024https://doi.org/10.1021/i260068a024research-articleACS PublicationsRequest reuse permissionsArticle Views109Altmetric-Citations8LEARN 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 options Get e-Alerts
Supplementary Figure 1 from Protein Kinase Casein Kinase 2–Mediated Upregulation of N-Cadherin Confers Anoikis Resistance on Esophageal Carcinoma Cells (2023)

&lt;p&gt;PDF file - 71K, Western blot analysis for type of cadherin expressed in TE2, TE3, HCE4, and HCE7 (A) and for epithelial or mesenchymal markers and PKB/Akt activation in TE3 and HCE7 cells (B)&lt;/p&gt;
The mixed PAL and component environment (1989)

Much equipment is now provided with a range of interfaces to different signal formats. These have been thoughtfully provided by the manufacturer and allow the equipment to be installed in many different ways. However, in some methods of interconnecting equipment the signal quality suffers more than others. The situation becomes further complicated by the need to consider the implications further downstream than where a particular interface is being installed. The paper considers some of the difficulties that might be experienced in interconnecting television studio equipment using different standards. It also points to some of the wider implications of adopting standards in various areas of television production.
Rakowiak u dzieci – opis przypadku i przegląd piśmiennictwa (2007)

Przedstawiono przypadek 16-letniej dziewczynki leczonej z powodu nawracających infekcji dróg oddechowych, u której na podstawie badań radiologicznych, bronchoskopii i badania histopatologicznego, ustalono rozpoznanie rakowiaka oskrzela płatowego górnego z niedodmą płata górnego płuca prawego. Leczeniem chirurgicznym – lobektomia płata górnego prawego z klinowym wycięciem oskrzela głównego – uzyskano trwałą remisję choroby. Autorzy przedstawiają przegląd piśmiennictwa dotyczącego rakowiaka u dzieci. We present a case report of a 16-year-old girl treated for recurrent respiratory tract infections, in whom the diagnosis of upper right lobar bronchus carcinoid associated with right upper pulmonary lobe atelectasis was established on the basis of radiology, bronchoscopy and histopathological investigations. Surgical treatment – right upper lobectomy with sleeve resection of main bronchus resulted in long-term disease remission. The authors present a review of the literature on carcinoid in childhood.
l-threonine transport in the obligate methylotrophMethylobacillus flagellatumKT (1989)

The accumulation of l-threonine by the methylotrophic bacterium Methylobacillus flagellatum KT occurs via a specific system that is capable of transporting l-threonine against a 100-fold concentration gradient. This transport system demonstrates the following kinetic parameters: Km= 0.2 mM and Vmax= 2.5 nmol/min/mg of cells (dry weight). The activity of the system is inhibited by oxidative phosphorylation uncouplers and valinomycin. Cytoplasmic l-threonine does not leak from the cell, but bacteria are capable of exchanging exogenous l-threonine for its intracellular counterpart.
ChemInform Abstract: Redox‐Switched Molecular Aggregates: The First Example of Vesicle Formation from Hydrophobic Ferrocene Derivatives. (1991)

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.
Fluorescence-lifetime imaging with a multifocal two-photon microscope (2004)

Two-photon microscopy is a powerful tool for imaging of cells or tissues. However, it presents the drawback of being a laser-scanning technique that involves a long acquisition time for f luorescence-lifetime imaging. Thus it is commonly limited to intensity images that give only indications of the location of f luorophores but do not identify the physicochemical properties and interactions between cells ’ components. To protect biological samples from experiments that are too long and to provide a more comprehensive spectroscopic tool we have developed a time-resolved multifocal multiphoton microscope. This setup allows us to speed up the acquisition while retaining the possibility of measuring both intensity and lifetime images of the sample. © 2004 Optical
Management ofMycobacterium aviumsubsp.paratuberculosisin dairy farms:Selection and evaluation of different DNA extraction methods from bovine and buffaloes milk and colostrum for the establishment of a safe colostrum farm bank (2019)

The aim of this study was to develop and validate different innovative DNA extraction methods to detect Mycobacterium avium subsp. paratuberculosis (MAP) DNA from bovine and buffalo colostrum. Paratuberculosis is a chronic inflammatory infection of domestic and wild animals, especially ruminants, caused by MAP. The primary route of disease transmission is feces, but MAP can also be excreted in milk and colostrum. In 2015, the Italian Ministry of Health has issued a voluntary control plan of MAP in order to allow risk-based certification of bovine and buffaloes farms. In addition to the annual diagnostic screening and to the clinical surveillance of animals the plan includes the adoption of biosecurity and management measures to progressively mitigate the incidence of MAP. To achieve this goal it is crucial to ensure the accuracy of the methods used to detect the presence of MAP in bovine and buffaloes milk and colostrum, in order to: (1) support a "safe colostrum farm-bank" set-up and thus prevent the main within-farm MAP transmission route and (2) to allow the MAP-free certification of milk products for export purposes. To achieve these goals, seven different DNA extraction protocols were identified from bibliography, out of which three methods were finally selected after the adoption of an evaluation procedure aimed at assessing the efficiency of extraction of DNA, the purity of DNA and the adaptability of the DNA amplification: NucleoSpin<sup>®</sup> Food Kit (Macherey-Nagel), NucleoSpin<sup>®</sup> Food Kit (Macherey-Nagel) combined with the magnetic beads, and QIAamp Cador Pathogen Mini kit (QIAGEN). In particular, the NucleoSpin<sup>®</sup> Food Kit (Macherey-Nagel) and the QIAamp Cador Pathogen Mini kit (QIAGEN) were tested on bovine and buffalo colostrum, showing a LOD between 4 × 10<sup>4</sup> (2.6 × 10<sup>6</sup> cfu/ml) and 4.08 (26.7 cfu/ml) IS900 target copies and a LOD between 5.3 × 10<sup>5</sup> (4.1 × 10<sup>6</sup> cfu/ml) and 53 (4.1 × 10<sup>3</sup> cfu/ml) IS900 target copies, respectively.
Structure–Activity Relationships and Pharmacophore Model of a Noncompetitive Pyrazoline Containing Class of GluN2C/GluN2D Selective Antagonists (2013)

Here we describe the synthesis and structure-activity relationship for a class of pyrazoline-containing dihydroquinolone negative allosteric modulators of the NMDA receptor that show strong subunit selectivity for GluN2C- and GluN2D-containing receptors over GluN2A- and GluN2B-containing receptors. Several members of this class inhibit NMDA receptor responses in the nanomolar range and are more than 50-fold selective over GluN1/GluN2A and GluN1/GluN2B NMDA receptors, as well as AMPA, kainate, GABA, glycine, nicotinic, serotonin, and purinergic receptors. Analysis of the purified enantiomers of one of the more potent and selective compounds shows that the S-enantiomer is both more potent and more selective than the R-enantiomer. The S-enantiomer had an IC50 of 0.17-0.22 μM at GluN2D- and GluN2C-containing receptors, respectively, and showed over 70-fold selectivity over other NMDA receptor subunits. The subunit selectivity of this class of compounds should be useful in defining the role of GluN2C- and GluN2D-containing receptors in specific brain circuits in both physiological and pathophysiological conditions.
Beamforming utilizing channel norm feedback in multiuser mimo systems (2007)

The problem of beamforming and rate estimation in a multi-user downlink multiple-input multiple-output (MIMO) system with limited feedback and statistical channel information at the transmitter is considered. In order to exploit the spatial properties of the channel, the norm of the channel to each receive antenna is computed. We propose to feed back the largest norm to the transmitter and derive the conditional second and fourth order channel moments in order to design the downlink beamforming weights. Similar approaches have previously been presented for multiuser multiple-input single-output (MISO) systems. Herein, these techniques are generalized to MIMO systems, by either antenna selection or receive beamforming at the receiver. Two eigenbeamform- ing strategies are proposed and shown to outperform opportunistic beamforming, based on similar feedback information.
Comprehensive structural integrity: 10 volume set (2003)

The aim of this major reference work is to provide a first point of entry to the literature for the researchers in any field relating to structural integrity in the form of a definitive research/reference tool which links the various sub-disciplines that comprise the whole of structural integrity.Special emphasis will be given to the interaction between mechanics and materials and structural integrity applications. Because of the interdisciplinary and applied nature of the work, it will be of interest to mechanical engineers and materials scientists from both academic and industrial backgrounds including bioengineering, interface engineering and nanotechnology.The scope of this work encompasses, but is not restricted to:fracture mechanics, fatigue, creep, materials, dynamics, environmental degradation, numerical methods, failure mechanisms and damage mechanics, interfacial fracture and nano-technology, structural analysis, surface behaviour and heart valves.The structures under consideration include:pressure vessels and piping, off-shore structures, gas installations and pipelines, chemical plants, aircraft, railways, bridges, plates and shells, electronic circuits, interfaces, nanotechnology, artificial organs, biomaterial prostheses, cast structures, mining... and more. Case studies will form an integral part of the work.
Selective induction of interleukin‐1 receptor antagonist and interleukin‐8 in human monocytes by normal polyspecific IgG (intravenous immunoglobulin) (1995)

We have investigated the effects of intravenous immunoglobulin (IVIg), a therapeutic preparation of normal human polyspecific IgG, on the synthesis and release of cytokines by peripheral blood monocytes. IVIg was found to selectively induce gene transcription and secretion of interleukin-1 receptor antagonist (IL-1ra) and IL-8 in cultures of normal human monocytes. The addition of IVIg to cultures of purified monocytes induced a dose-dependent secretion of IL-1ra and IL-8 without stimulating the production of IL-1 alpha, IL-1 beta, tumor necrosis factor-alpha or IL-6. The effects of IVIg required both the Fc and F(ab')2 portions of IgG. IVIg-induced production of IL-8 by monocytes was enhanced by lipopolysaccharide (LPS), although LPS inhibited the secretion of IL-1ra, suggesting that IVIg and LPS stimulate distinct intracellular pathways in monocytes. Induction of IL-1ra and IL-8 by IVIg was enhanced in the presence of autologous T lymphocytes. Our observations document the selectivity of the effects of IVIg on the synthesis of cytokines and cytokine antagonists by human monocytes. Induction of IL-1ra and IL-8 by IVIg may contribute to the anti-inflammatory effects of immunoglobulin therapy in patients with autoimmune and systemic inflammatory disorders.
Experimental Studies of Electroosmotic Flow Dynamics during Sample Stacking for Capillary Electrophoresis (2003)

Electroosmotic flow dynamics during a field-amplified sample stacking experiment have been studied experimentally using the periodic photobleaching of a dilute, neutral fluorophore added to the separation buffer. The effects of hydrodynamically injecting different sample plug lengths containing a mixture of arsenic compounds dissolved in 0.125 mM (120, 240, and 600 s) and 41.7 microM (27, 45, and 74 s) phosphate buffer with a separation buffer concentration of 12.5 mM phosphate buffer were examined. Changes in electroosmotic flow during sample stacking and separation were monitored at a rate of 1 Hz. The observed effects of increasing the sample plug length on electroosmotic flow and electrophoretic current agreed qualitatively with predictions by theoretical models presented in the literature. Electroosmotic flow changes on the order of 100% (1.6-3.3 mm/s) were observed. Broadening of the flow monitoring peaks has been used to examine parabolic flow due to the discontinuous buffer systems used for sample stacking.
Observation of the tin whisker by micro-Auger electron spectroscopy (1980)

An observation by micro-Auger electron spectroscopy has been made of the tin whisker grown on electroplated tin films. Direct experimental evidence has been obtained for the existence of zinc and oxygen impurities on tin whiskers as well as on the electroplated film surfaces when a brass or zinc-coated metal is used as a substrate. The localization of these impurities on these surfaces may be related to the growth mechanism of tin whiskers or to the driving force by lowering the surface energy.
Low-loss intracavity AlAs/AlGaAs saturable Bragg reflector for femtosecond mode locking in solid-state lasers (1995)

We introduce a new low-loss semiconductor structure for femtosecond intracavity mode locking in low-gain solidstate lasers. This monolithic device can be engineered to exhibit specif ic saturation characteristics desirable for mode locking solid-state lasers. Self-starting 90-fs pulses are obtained with Ti:sapphire and diode-pumped Cr:LiSAF lasers. We discuss mode-locking mechanisms in quantum-well passively mode-locked solid-state lasers.
Predictive values of component-specific IgE for the outcome of peanut and hazelnut food challenges in children (2014)

Ara h 2- and Cor a 14-specific IgE are useful to estimate the probability for a positive challenge outcome in the diagnostic work-up of peanut or hazelnut allergy making some food challenges superfluous.