gebhart/patrepeval huggingface dataset:
Posttranslational Modifications of Cardiac and Skeletal Muscle Proteins by Reactive Oxygen Species After Burn Injury in the Rat (1999)

These observations suggest that the loss of proteins modified by reactive oxygen species may contribute to the burn-induced protein wasting in respiratory and other muscles by a proteolytically driven mechanism.
Optoelectronic Properties of Single‐Wall Carbon Nanotubes (2012)

Single-wall carbon nanotubes (SWCNTs), with their uniquely simple crystal structures and chirality-dependent electronic and vibrational states, provide an ideal laboratory for the exploration of novel 1D physics, as well as quantum engineered architectures for applications in optoelectronics. This article provides an overview of recent progress in optical studies of SWCNTs. In particular, recent progress in post-growth separation methods allows different species of SWCNTs to be sorted out in bulk quantities according to their diameters, chiralities, and electronic types, enabling studies of (n,m)-dependent properties using standard macroscopic characterization measurements. Here, a review is presented of recent optical studies of samples enriched in 'armchair' (n = m) species, which are truly metallic nanotubes but show excitonic interband absorption. Furthermore, it is shown that intense ultrashort optical pulses can induce ultrafast bandgap oscillations in SWCNTs, via the generation of coherent phonons, which in turn modulate the transmission of a delayed probe pulse. Combined with pulse-shaping techniques, coherent phonon spectroscopy provides a powerful method for studying exciton-phonon coupling in SWCNTs in a chirality-selective manner. Finally, some of the basic properties of highly aligned SWCNT films are highlighted, which are particularly well-suited for optoelectronic applications including terahertz polarizers with nearly perfect extinction ratios and broadband photodetectors.
All-fiber mode selective couplers for mode-division-multiplexed optical transmission (2017)

All-fiber mode selective coupler (MSC) is comprised of a few mode fiber (FMF) and a single mode fiber (SMF), coupling the LP<sub>01</sub> mode of the SMF to a specific higher-order mode (HOM) of the FMF. In order to achieve high coupling ratio and low insertion loss, phase-matching condition between the LP<sub>01</sub> mode of SMF arm and the HOM of FMF arm should be satisfied. A polished-type MSC is made by getting their cores into intimate contact. Prism coupling with a polished coupler block can measure the effective refractive index of the mode accurately. We propose and demonstrate three kinds of allfiber mode multiplexer that is composed of consecutive MSCs. 4-mode multiplexer can multiplex 4 modes of LP<sub>01</sub>, LP<sub>11</sub>, LP<sub>21</sub>, and LP<sub>02</sub> by cascading LP<sub>11</sub>, LP<sub>21</sub>, and LP<sub>02</sub> MSCs. It is used for MDM transmission of three modes with 120 Gb/s DP-QPSK signals. In order to enhance the signal transmission performance by receiving degenerate LP modes simultaneously, a mode multiplexer to utilize two-fold degenerate LP<sub>11</sub> modes is proposed. It is composed of two consecutive LP<sub>11</sub> MSCs that allows the multiplexing of LP01 mode and two orthogonal LP<sub>11</sub> modes. We demonstrates WDM transmission of 30 wavelength channels with 33.3 GHz spacing, each carrying 3 modes, over 560 km of FMF. 6- mode multiplexer can multiplex 6 modes of LP<sub>01</sub>, LP<sub>11a</sub>, LP<sub>11b</sub>, LP<sub>21a</sub>, LP<sub>21b</sub>, LP<sub>02</sub> modes. We demonstrated WDM-MDM transmission with the all-fiber 6-mode multiplexer. In this paper, the manufacturing method and the recent advancements of the all-fiber mode multiplexer based on the MSCs are reviewed. Long-distance mode division multiplexing (MDM) optical signal transmissions with the all-fiber mode multiplexer are experimentally demonstrated.
Intersymbol Interference Investigations Using a 3D Time-Dependent Traveling Wave Tube Model (2002)

For the first time, a physics based computational model has been used to provide a direct description of the effects of the TWT (Traveling Wave Tube) on modulated digital signals. The TWT model comprehensively takes into account the effects of frequency dependent AM/AM and AM/PM conversion; gain and phase ripple; drive-induced oscillations; harmonic generation; intermodulation products; and backward waves. Thus, signal integrity can be investigated in the presence of these sources of potential distortion as a function of the physical geometry of the high power amplifier and the operational digital signal. This method promises superior predictive fidelity compared to methods using TWT models based on swept amplitude and/or swept frequency data. The fully three-dimensional (3D), time-dependent, TWT interaction model using the electromagnetic code MAFIA is presented. This model is used to investigate assumptions made in TWT black box models used in communication system level simulations. In addition, digital signal performance, including intersymbol interference (ISI), is compared using direct data input into the MAFIA model and using the system level analysis tool, SPW (Signal Processing Worksystem).
Efficient decision feedforward equalizer with parallelizable architecture (2013)

This paper presents an improved decision feedforward equalizer (DFFE) for high speed receivers operating on highly dispersive channels. The DFFE has been recently proposed for multigigabit communication receivers, where the use of parallel processing is required. Well-known parallel architectures for the traditional decision feedback equalizer (DFE) have a complexity which grows exponentially with the channel memory. Instead, the new DFFE avoids that exponential increase in complexity by using tentative decisions to iteratively cancel intersymbol interference (ISI). Additional complexity reduction can be achieved by improving the reliability of the initial tentative decisions. To provide more reliable initial tentative decisions to the DFFE, a simple reduced-state Viterbi algorithm (VA) is proposed in this work. Computer simulations demonstrate that the combination of DFFE and VA not only allows a similar performance to the typical DFE to be achieved, but it also results in a significant complexity reduction.
Lattice Mismatch in Crystalline Nanoparticle Thin Films (2017)

For atomic thin films, lattice mismatch during heteroepitaxy leads to an accumulation of strain energy, generally causing the films to irreversibly deform and generate defects. In contrast, more elastically malleable building blocks should be better able to accommodate this mismatch and the resulting strain. Herein, that hypothesis is tested by utilizing DNA-modified nanoparticles as “soft,” programmable atom equivalents to grow a heteroepitaxial colloidal thin film. Calculations of interaction potentials, small-angle X-ray scattering data, and electron microscopy images show that the oligomer corona surrounding a particle core can deform and rearrange to store elastic strain up to ±7.7% lattice mismatch, substantially exceeding the ±1% mismatch tolerated by atomic thin films. Importantly, these DNA-coated particles dissipate strain both elastically through a gradual and coherent relaxation/broadening of the mismatched lattice parameter and plastically (irreversibly) through the formation of dislocations or vacancies. These data also suggest that the DNA cannot be extended as readily as compressed, and thus the thin films exhibit distinctly different relaxation behavior in the positive and negative lattice mismatch regimes. These observations provide a more general understanding of how utilizing rigid building blocks coated with soft compressible polymeric materials can be used to control nano- and microstructure.
Malignant pleural mesothelioma with long-term tumor disappearance of a local relapse after surgery: a case report (2009)

This is the first report describing a malignant pleural mesothelioma patient in Japan showing long-term complete disappearance of a local relapse after surgery. This event was a tumor regression possibly due to an immunological effect of combined complementary and alternative therapy.
Performance Analysis of SWIPT Relaying Systems in the Presence of\n Impulsive Noise (2020)

We develop an analytical framework to characterize the effect of impulsive\nnoise on the performance of relay-assisted simultaneous wireless information\nand power transfer (SWIPT) systems. We derive novel closed-form expressions for\nthe pairwise error probability (PEP) considering two variants based on the\navailability of channel state information (CSI), namely, blind relaying and\nCSI-assisted relaying. We further consider two energy harvesting (EH)\ntechniques, i.e., instantaneous EH (IEH) and average EH (AEH). Capitalizing on\nthe derived analytical results, we present a detailed numerical investigation\nof the diversity order for the underlying scenarios under the impulsive noise\nassumption. For the case when two relays and the availability of a direct link,\nit is demonstrated that the considered SWIPT system with blind AEH-relaying is\nable to achieve an asymptotic diversity order of less than 3, which is equal to\nthe diversity order achieved by CSI-assisted IEH-relaying. This result suggests\nthat, by employing the blind AEH relaying, the power consumption of the network\ncan be reduced, due to eliminating the need of CSI estimation. This can be\nachieved without any performance loss. Our results further show that placing\nthe relays close to the source can significantly mitigate the detrimental\neffects of impulsive noise. Extensive Monte Carlo simulation results are\npresented to validate the accuracy of the proposed analytical framework.\n
ChemInform Abstract: Preparation and Trapping of Lithium 3‐Lithiophenoxide. (1993)

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.
ULTRAHIGH SPEED SWEPT SOURCE OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY OF RETINAL AND CHORIOCAPILLARIS ALTERATIONS IN DIABETIC PATIENTS WITH AND WITHOUT RETINOPATHY (2016)

The ability of optical coherence tomography angiography to visualize retinal and CC microvascular abnormalities suggests it may be a useful tool for understanding pathogenesis, evaluating treatment response, and earlier detection of vascular abnormalities in patients with diabetes.
DCT and DST Filtering With Sparse Graph Operators (2022)

Graph filtering is a fundamental tool in graph signal processing. Polynomial graph filters (PGFs), defined as polynomials of a fundamental graph operator, can be implemented in the vertex domain, and usually have a lower complexity than frequency domain filter implementations. In this paper, we focus on the design of filters for graphs with graph Fourier transform (GFT) corresponding to a discrete trigonometric transform (DTT), i.e., one of 8 types of discrete cosine transforms (DCT) and 8 discrete sine transforms (DST). In this case, we show that multiple sparse graph operators can be identified, which allows us to propose a generalization of PGF design: <i>multivariate polynomial graph filter (MPGF)</i>. First, for the widely used DCT-II (type-2 DCT), we characterize a set of sparse graph operators that share the DCT-II matrix as their common eigenvector matrix. This set contains the well-known connected line graph. These sparse operators can be viewed as graph filters operating in the DCT domain, which allows us to approximate any DCT graph filter by a MPGF, leading to a design with more degrees of freedom than the conventional PGF approach. Then, we extend those results to all of the 16 DTTs as well as their 2D versions, and show how their associated sets of multiple graph operators can be determined. We demonstrate experimentally that ideal low-pass and exponential DCT/DST filters can be approximated with higher accuracy with similar runtime complexity. Finally, we apply our method to transform-type selection in a video codec, AV1, where we demonstrate significant encoding time savings, with a negligible compression loss.
Correction: A brain-specific PGC1a fusion transcript affects gene expression and behavioral outcomes in mice (2021)

It came to our attention that the Gene Chip utilized for microarray analysis wrongly indicated the Human GeneChip. Instead, the microarrays used the Affymetrix Mouse GeneChip as below. We apologize for the inconvenience; this correction bears no impact on the microarray results obtained. Article:
Reaction of diphenylketene with some cyclohexa-3,5-diene-1,2-cis-diol derivatives: conversion of chlorobenzene into optically active 2-oxabicyclo[2.2.2]octen-3-one (1994)

The dienes 11–15 react with diphenylketene to give mixtures of the corresponding [2 + 2]-adducts 16–20 and [4 + 2]-adducts 21–25: the isomers 19/24 were converted into the optically active lactone 26 in two steps.
Exact Recovery Threshold in Dynamic Binary Censored Block Model (2022)

This paper considers community detection in the dynamic binary censored block model. Under this model, the graph is observed at successive times (snapshots), and the node label in the current snapshot is dependent on the same node label in the previous τ snapshots. In this paper, the maximum likelihood estimator of the current node labels is obtained under this model, subject to the observation of the graph in the present and past snapshots, and the exact recovery conditions are derived. Relaxing the maximum likelihood estimator, a semidefinite programming algorithm is proposed for community detection. In the asymptotic regime, a sufficient condition for exact recovery is obtained using the semidefinite programming estimator, which is shown to asymptotically match the sufficient conditions for exact recovery.
ChemInform Abstract: Al(OTf)3‐Catalyzed SN2′ Substitution of the β‐Hydroxy Group in Morita—Baylis—Hillman Adducts with Indoles. (2015)

Abstract A simple, efficient, and cost‐effective process for the synthesis of C3‐alkylated indole derivatives by S N 2′ substitution of the hydroxy group in β‐hydroxyketones with indoles, is described.
Characterization of the sucrose ester fraction from Nicotiana glutinosa (1990)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCharacterization of the sucrose ester fraction from Nicotiana glutinosaRichard F. Arrendale, Ray F. Severson, Verne A. Sisson, Catherine E. Costello, Julie A. Leary, David S. Himmelsbach, and Herman Van HalbeekCite this: J. Agric. Food Chem. 1990, 38, 1, 75–85Publication Date (Print):January 1, 1990Publication History Published online1 May 2002Published inissue 1 January 1990https://pubs.acs.org/doi/10.1021/jf00091a015https://doi.org/10.1021/jf00091a015research-articleACS PublicationsRequest reuse permissionsArticle Views296Altmetric-Citations37LEARN 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
De Novo Lipogenesis Alters the Phospholipidome of Esophageal Adenocarcinoma (2020)

The incidence of esophageal adenocarcinoma is rising, survival remains poor, and new tools to improve early diagnosis and precise treatment are needed. Cancer phospholipidomes quantified with mass spectrometry imaging (MSI) can support objective diagnosis in minutes using a routine frozen tissue section. However, whether MSI can objectively identify primary esophageal adenocarcinoma is currently unknown and represents a significant challenge, as this microenvironment is complex with phenotypically similar tissue-types. Here, we used desorption electrospray ionization-MSI (DESI-MSI) and bespoke chemometrics to assess the phospholipidomes of esophageal adenocarcinoma and relevant control tissues. Multivariate models derived from phospholipid profiles of 117 patients were highly discriminant for esophageal adenocarcinoma both in discovery (AUC = 0.97) and validation cohorts (AUC = 1). Among many other changes, esophageal adenocarcinoma samples were markedly enriched for polyunsaturated phosphatidylglycerols with longer acyl chains, with stepwise enrichment in premalignant tissues. Expression of fatty acid and glycerophospholipid synthesis genes was significantly upregulated, and characteristics of fatty acid acyls matched glycerophospholipid acyls. Mechanistically, silencing the carbon switch <i>ACLY</i> in esophageal adenocarcinoma cells shortened glycerophospholipid chains, linking <i>de novo</i> lipogenesis to the phospholipidome. Thus, DESI-MSI can objectively identify invasive esophageal adenocarcinoma from a number of premalignant tissues and unveils mechanisms of phospholipidomic reprogramming. SIGNIFICANCE: These results call for accelerated diagnosis studies using DESI-MSI in the upper gastrointestinal endoscopy suite, as well as functional studies to determine how polyunsaturated phosphatidylglycerols contribute to esophageal carcinogenesis.
Hydrogen from steam methane reforming by catalytic nonthermal plasma using a dielectric barrier discharge reactor (2019)

Abstract A scaled‐up dielectric barrier discharge (DBD) reactor has been developed and demonstrated for the production of hydrogen from steam methane reforming (SMR) by catalytic nonthermal plasma (CNTP) technology. Compared to SMR, CNTP offers conversion at ambient pressure (101.325 kPa), low temperature with better efficiency, making it suitable for distributed hydrogen production with small footprint. There have been several lab‐scale DBD reactors reported in the literature. Dimension of the scaled‐up DBD reactor is about six times the lab‐scale version and can produce 0.9 kg H 2 /day. The scale‐up is, however, nonlinear; several technical innovations were required including spray nozzle for homogeneous introduction of steam, perforated tube central electrodes for generation of homogeneous plasma. Conversion efficiency of the scaled‐up DBD reactor is 70–80% at 550°C and 500 W. A continuous run of 8 hr was demonstrated with typical product gas composition of 69% H 2 , 6% CO 2 , 15% CO, 10% CH 4 .
Optically pumped coherent mechanical oscillators: the laser rate equation theory and experimental verification (2012)

We develop a theory describing the operation of an opto-mechanical oscillator as a phonon laser using a set of coupled equations that is analogous to the standard set of laser rate equations. We show that laser-like parameters that characterize gain, stored energy, threshold, efficiency, oscillation frequency linewidth, and saturation power can be introduced for an opto-mechanical oscillator driven by photo-thermal or radiation pressure forces. We then apply the theoretical model to the experimental results for photo-thermally driven oscillations in a Si waveguide opto-mechanical resonator and show good agreement between the theory and experiments. We also consider the microscopic mechanism that transforms the energy of incoherent thermal phonons into coherent oscillations of a single phonon mode and show remarkable parallels with the three-wave parametric interactions in optics and also with opto-electronic oscillators used in microwave photonics.
A practical investigation of a high power, bidirectional charging system for electric vehicles (2014)

In the last few years, there has been a very high interest in inductive charging systems for electric vehicles, as they have many advantages compared to cable connected solutions. The power rating of most of these systems is kept around 3.3 kW, which leads to very long charging times. The following paper presents an inductive charging system rated for a high power level of 22 kW. A series-series resonant circuit proves to be very efficient, as high circulating currents, present in parallel compensated systems, are avoided. To reduce switching and conduction losses, but also the size of the whole system, SiC-MOSFETs are used. For the control of the inductive transmission path, several methods are presented and a pulse density modulation (PDM) is investigated and experimentally evaluated.
Optimization of energy levels by molecular design: evaluation of bis-diketopyrrolopyrrole molecular donor materials for bulk heterojunction solar cells (2013)

We report a series of solution-processable, small-molecule, donor materials based on an architecture consisting of two diketopyrrolopyrrole (DPP) cores with different aromatic π-bridges between the DPP units and different end-capping groups. In general, this architecture leads to desirable light absorption and electronic levels for donor materials. Out of the compounds investigated, a material with a hydrolyzed dithieno(3,2-b;2′,3′-d)silole (SDT) core and 2-benzofuran (BFu) end capping groups leads to the most favorable properties for solar cells, capable of generating photocurrent up to 800 nm while producing an open-circuit voltage of over 850 mV, indicating a small loss in electrical potential compared to other bulk heterojunction systems. Device properties can be greatly improved through the use of solvent additives such as 2-chloronaphthalene and initial attempts to optimize device fabrication have resulted in power conversion efficiencies upwards of 4%.
Analysis of the effects of nonidealities of power components and mains voltage unbalance on the operating behavior of a three-phase/switch buck-type unity power factor PWM rectifier (2003)

According to the experimental analysis of a 5 kW wide input voltage range three-phase three-switch buck-derived unity power factor PWM rectifier, the ideally constant DC output current does show a low-frequency distortion for open-loop control operation which is translated into low-frequency harmonics of the mains current. This distortion cannot be eliminated completely by closed-loop control since the controller bandwidth has to be limited for stability reasons and/or in order to avoid an excitation of the LC input filter. In this paper the parasitic effects being responsible for the low-frequency distortions of DC output voltage and/or current are analyzed analytically and quantified for different operating conditions. Furthermore, the minimization of the influence of the parasitic effects by proper pre-control is discussed. All theoretical considerations are confirmed by digital simulations.
New human urine biomarkers associated with hydroxytyrosol consumption and olive-based products (2021)

Hydroxytyrosol (HT) is one of the most characteristic compound of olive products and a highly potent compound with proven positive impact to human health [1]. Moreover, HT is also an endogenous metabolite produced from dopamine. The release of many HT-based products in the market directed the current research efford to the exploration of HT effect in obesity and investigation of its ADMET properties based on a human intervation study.