gebhart/patrepeval huggingface dataset:
Tomography of the optical polarization rotation induced by a single quantum dot in a cavity (2017)

We introduce a tomography approach to describe the optical response of a cavity quantum electrodynamics device, by analyzing the polarization density matrix of the reflected photons in the Poincar\'e sphere. Applying this approach to an electrically-controlled quantum dot-cavity device, we show that the superposition of emitted single photons with directly-reflected photons leads to a large rotation of the output polarization, by 20º in latitude and longitude in the Poincaré sphere, with a polarization purity remaining above 84%. This polarization tomography illustrates how incoherent processes have to be included, in the framework of solid-state quantum technologies, to describe the optical response of a device beyond the semiclassical image.
Glucose-Insulin-Potassium Reduces the Incidence of Low Cardiac Output Episodes After Aortic Valve Replacement for Aortic Stenosis in Patients With Left Ventricular Hypertrophy (2011)

Perioperative treatment with GIK was associated with a significant reduction in the incidence of low cardiac output state and the need for inotropic support. This benefit was associated with increased signaling protein phosphorylation and O-GlcNAcylation. Multicenter studies and late follow-up will determine whether routine use of GIK improves patient prognosis.
Detecting and Counteracting Atmospheric Effects (2012)

Satellite imagery systems often encounter problems with analysis and clarity of original images due to atmospheric conditions. Visual spectrum, photometric images are very susceptible to atmospheric effects. The vehicle detection algorithm is applied potentially multiple times in the iteration loop of restoration, detection and repeat. The system is interesting in that it has an iterative correction algorithm that includes an object detection subsystem that looks to find regions containing cars. Heuristic and non-physics-based approaches represent the other paradigm of atmospheric detection and correction algorithms. The algorithm accounts for horizontally varying atmospheric conditions and also includes the height dependence of the atmospheric radiance and transmittance functions to simulate the simplified properties of a three-dimensional atmosphere. Infrared (IR) light can be absorbed by water-based molecules in the atmosphere but imaging using IR sensors yields better results than visible spectrum cameras.
Nitric Oxide as a Pro-apoptotic as well as Anti-apoptotic Modulator (2002)

Nitric oxide (NO), synthesized from L-arginine by NO synthases, is a small, lipophilic, diffusible, highly reactive molecule with dichotomous regulatory roles in many biological events under physiological and pathological conditions. NO can promote apoptosis (pro-apoptosis) in some cells, whereas it inhibits apoptosis (anti-apoptosis) in other cells. This complexity is a consequence of the rate of NO production and the interaction with biological molecules such as metal ion, thiol, protein tyrosine, and reactive oxygen species. Long-lasting overproduction of NO acts as a pro-apoptotic modulator, activating caspase family proteases through the release of mitochondrial cytochrome c into cytosol, up-regulation of the p53 expression, and alterations in the expression of apoptosis-associated proteins, including the Bcl-2 family. However, low or physiological concentrations of NO prevent cells from apoptosis that is induced by the trophic factor withdrawal, Fas, TNFalpha/ActD, and LPS. The anti-apoptotic mechanism is understood on the basis of gene transcription of protective proteins. These include: heat shock protein, hemeoxygenase, or cyclooxygenase-2 and direct inhibition of the apoptotic executive effectors caspase family protease by S-nitrosylation of the cysteine thiol group in their catalytic site in a cell specific way. Our current understanding of the mechanisms by which NO exerts both pro- and anti-apototic action is discussed in this review article.
Evaluation of Three-Phase Transformerless Photovoltaic Inverter Topologies (2009)

This paper analyzes and compares three transformerless photovoltaic inverter topologies for three-phase grid connection with the main focus on the safety issues that result from the lack of galvanic isolation. A common-mode model, valid at frequencies lower than 50 kHz, is adopted to study the leakage current paths. The model is validated by both simulation and experimental results. These will be used to compare the selected topologies, and to explain the influence of system unbalance and the neutral conductor inductance on the leakage current. It will be demonstrated that the later has a crucial influence. Finally, a comparison of the selected topologies is carried out, based on the adopted modulation, connection of the neutral and its inductance, effects of unbalance conditions, component ratings, output voltage levels, and filter size.
Distributed Kalman filtering based on quantized innovations (2008)

We consider state estimation of a Markov stochastic process using an ad hoc wireless sensor network (WSN) based on noisy linear observations. Due to power and bandwidth constraints present in resource- limited WSNs, the observations are quantized before transmission. We derive a distributed recursive mean-square error (MSE) optimal quantizer-estimator based on the quantized observations. The resultant Kalman-like algorithm based on quantized observations exhibits MSE performance and computational complexity comparable to the Kalman filter based on un-quantized observations even for 2-3 bits of quantization per observation.
FloReMi: Flow density survival regression using minimal feature redundancy (2015)

Advances in flow cytometry bioinformatics have resulted in a wide variety of clustering, classification and visualization techniques. To objectively evaluate the performance of such methods, common benchmarks such as the FlowCAP initiative have proven to be of great value. In this work, we report on a novel method, FloReMi, which was developed to tackle the most recent FlowCAP IV challenge. This challenge was formulated as a survival modeling problem, where participants were expected to design a model to predict the time until progression to AIDS for HIV patients. It is known that variability in progression rate cannot be fully predicted by simple CD4(+) T cell counts. However, it is hypothesized that the immunopathogenesis established early in HIV already indicates the course of future disease. Adequately estimating the progression rate of HIV patients is crucial in their treatment. Using an automated pipeline to preprocess the data, and subsequently identify and select informative cell subsets, a survival regression method based on random survival forests was built, which obtained the best results of all submitted approaches to the FlowCAP IV challenge.
Further Investigations of Racemic and Chiral Molecular Sieves of the STW Topology (2021)

Large single crystals of pure-silica STW-type molecular sieves are prepared using 1,2,3,4,5-pentamethylimidazolium (12345PMI) and 2-ethyl-1,3,4-trimethylimidazolium (2E134TMI) as organic structure-directing agents (OSDAs) and α-amino acid additives. The effects of the amount and type of amino acid on the crystallization of pure-silica STW materials are investigated. Room-temperature single-crystal X-ray diffractometry shows that 12345PMI better fits the STW cage than 2E134TMI and is fully consistent with computed simulations. The synthesis of an enantioenriched R-STW-type molecular sieve having a Si/Ge ratio of 2.2 is achieved using a chiral, dicationic OSDA that contains two stereocenters. The conformation of the chiral OSDA in the chiral framework has been obtained from a Rietveld refinement using synchrotron powder diffraction data and is the first structure refinement of an enantioenriched, inorganic molecular sieve prepared from a pure, asymmetric OSDA.
Utilização de Redes Neurofuzzy para Previsão Mensal de Vazão de Água (2014)

A agua e um recurso natural muito importante em muitas areas da vida do ser humano. Aplicacoes em consumo proprio, irrigacao, producao de energia e previsao de enchentes em cidades ribeirinhas impactam diretamente na qualidade de vida da sociedade. O Brasil, por exemplo, e um pais que depende fortemente da geracao de energia a partir de usinas hidroeletricas. Segundo dados da ANEEL (Agencia Nacional de Energia Eletrica), cerca de 64% da energia eletrica produzida no pais e gerada a partir desta fonte. Este mesmo grau de dependencia nao e visto na maioria dos demais paises. O principal agente motivador deste fato e o potencial hidrico do Brasil, atraves de rios que proporcionam elevada vazao de agua e o relevo favoravel a este tipo de geracao. Apesar da geracao de energia eletrica estar crescendo a partir de fontes alternativas como a eolica, possivelmente, a producao de energia a partir das usinas hidroeletricas devera permanecer como a mais importante ainda nos proximos anos. Diante disto, terem-se estimativas de vazao dos rios que alimentam as usinas hidroeletricas torna-se muito importante para o sucesso deste tipo de geracao de energia, inclusive, identificando possiveis riscos de baixa producao em algumas regioes, possibilitando acoes preventivas para suprimento da demanda. Neste contexto, a qualidade do processo de previsao influencia diretamente em um melhor planejamento energetico. Segundo KASABOV, sistemas hibridos compostos por redes neurais com logica fuzzy incluida dentro da arquitetura, sao boas aplicacoes em problemas de previsao e classificacao, pois une as caracteristicas de capacidade de generalizacao (da rede neural) com precisao no resultado (da logica fuzzy). Portanto, este projeto visa melhorar as estimativas de previsao mensal de vazao de agua a partir do uso de redes neurais com caracteristicas fuzzy, tambem conhecidas como redes neurofuzzy.
Low Output Offset, 8-bit Signal Driver ICs for XGA/SVGA TFT-LCDs (1997)

Two types of low output offset 8-bit signal driver ICs for XGA/SVGA TFT-LCDs are described. These driver ICs generate 256 gray-scale levels using 11 reference voltages. One type incorporates a DAC using a capacitor array (C-DAC) and the other a DAC using a resistive divider(R-DAC). Using a fast offset-cancel circuit, the output-offset voltage of each driver has been reduced to within ±5mV (1/2 LSB) with the settling time of 10μsec for 150pF load capacitance. These driver ICs can operate at up to 55MHz at 3.3V. Both driver ICs have 309/300 outputs. They were fabricated using standard 0.6μm CMOS technology for logic ICs. The die areas of the drivers are 38.9mm2 for the C-DAC, type and 47.6mm2 for the R-DAC type; it is found that the C-DAC type is more cost-effective than the R-DAC type.
Alkaloids from Croton species. Part IV. The isolation and structure of a new proaporphine derivative from Croton linearis Jacq. (1966)

A new proaporphine is isolated from Croton linearis Jacq. as its OO-diacetate, which can be converted into D-(+)-NO-dimethyldeoxyhexahydrocrotonosine methiodide by standard procedures involving hydrogenolysis. Spectroscopic and other studies show the new compound to be the 8,9- or 11,12-dihydro-derivative of the dienol derived from “isocrotonosine”.
Structure and stability of CaH2surfaces: on the possibility of electron-rich surfaces in metal hydrides for catalysis (2017)

Thermally activated CaH<sub>2</sub>hosts a high concentration of localized electrons which can promote reactions that require multi-electron transfer to break or make chemical bonds.
Acoustic radiation force on non-spherical objects in a liquid (2016)

Macro-scale acoustophoretic separation has applications in oil/water separation and biopharmaceutical cell clarification. Interesting phenomena include deformation of oil droplets and clustering of cells into cylindrical shapes. Particle and cluster size are not necessarily small relative to the wavelength. A general computational framework is needed to calculate the acoustic radiation force on particles, clusters, and cells of various shapes. Ilinskii et al. presented a method to evaluate an acoustic radiation force on spherical objects, based on expansion of incident and scattered field in spherical waves. The acoustic force is given by the incident wave amplitudes and dimensionless scattering coefficients. This method is generalized for particle shapes which are not spherical. The incident acoustic and scattered field are expanded with respect to spherical waves. An evaluation of the scattering amplitudes for non-spherical objects can be done numerically. Analytically, scattering amplitudes are calculated from boundary conditions for spheroidal functions that are solutions of a wave equation in spheroidal coordinates ξ, η, φ. Boundary conditions are defined at surface ξ= constant, i.e. on an ellipsoid surface. Solutions for prolate and oblate ellipsoids have been estimated. The asymptotic values of spheroidal solutions are determined for ξ large enough to obtain required amplitudes of scattered field. Ilinskii et al. POMA, 19 (2013).
SOFT-TISSUE BALANCE IN REVISION TOTAL KNEE ARTHROPLASTY (2003)

Corresponding author: Michael D. Ries, MD Department of Orthopaedic Surgery, University of California at San Francisco, 500 Parnassus Avenue (MU 320-W), San Francisco, CA 94143. E-mail address: [email protected]
Nitrogen Fixation by Borabenzene (1988)

Borabenzene is stabilized in an extremely mild fashion in the matrix-isolated borabenzene–nitrogen adduct 4, which was identified by IR spectroscopy. In general, boraarenes and boraethenes can only be isolated when the electron deficiency on boron is satisfied by a donor. Compound 4 is formed via 3 upon flash pyrolysis of 1 in N2 as carrier gas.
CCDC 606085: Experimental Crystal Structure Determination (2007)

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
Functional coverage - is your design exposed? (2005)

We prove the correctness of an original method for generating components that capture the occurrence of events, and monitor logical and temporal properties of hardware/software embedded systems. The properties are written in PSL, under the form of assertions in declarative form. The method is based on a library of primitive digital components for the PSL temporal operators. These building blocks are interconnected to construct complex properties, resulting in a synthesizable digital module that can be properly linked to the digital system under scrutiny. The proof reported in this paper applies to the weak version of all foundation language operators.
Atmospheric Pressure Plasma Polymerization of In Situ Doped Polypyrrole (2013)

The conjugated polymer polypyrrole can be useful in a lot of applications such as LEDs, solar cells, organic thin film transistors, (bio)sensors, corrosion protection and antistatic layers. However, today, large area coating is still difficult. For this reason, plasma deposition at atmospheric pressure is presented as an alternative synthesis method, because of its possibility for inline processing and in situ doping. Furthermore, plasma polymerization is a more environmental friendly dry technique. Injection of a pyrrole aerosol into a nitrogen plasma and in situ doping by coinjection of NOBF4 or iodine, results in polymerization and coating deposition. The so formed coatings are analyzed with XPS, FTIR, UV/VIS, and resistance measurements. Conductivities up to 10 -3 S/cm were reached.
Cytokine production by mononuclear cells from patients with chronic renal failure. (1993)

The interleukins play a central role in the regulation of the immune system function. In the present study we compared the ability of peripheral blood mononuclear cells (PBMC) from three groups of uremic patients and 15 healthy controls to release interleukin-2 (IL-2) and interleukin-3-like activity (IL-3-LA). In the first group, 11 patients with chronic renal failure (CRF) not yet on dialysis treatment, IL-2 and IL-3-LA were similar to those of the controls. The finding of an increased IL-2 activity in the CRF group suggests that factors other than membrane blood interactions are involved in its production. In the second group, 15 patients on hemodialysis (HD), Il-2 activity measured pre-HD was higher than in the control group (P < 0.005) but decreased slightly post-HD; and IL-3-LA pre-HD was higher than in the controls but decreased post-HD. The pre-HD high levels of IL-2 and IL-3-LA support the role of membrane blood interactions in inducing cytokine activity. In the third group, 13 patients on continuous ambulatory peritoneal dialysis (CAPD), IL-2 and IL-3-LA were similar to the controls. The normal values found in the CAPD group suggest that this modality of dialysis leads to a more normal cytokine production and thus may prevent complications observed in acute and chronic hemodialysis.
BurnAR: Feel the heat (2012)

Augmented Reality systems that run interactively and in real time, using high quality graphical displays and sensational cues, can create the illusion of virtual objects appearing to be real. This paper presents the design and implementation of BurnAR, a demonstration which enables users to experience the illusion of seeing their own hands burning, which we achieve by overlaying virtual flames and smoke on their hands. Surprisingly, some users reported an involuntary warming sensation of their hands.
Gas permeation and sorption studies on stereoregular polynorbornene (1997)

Advances in the field of membrane gas separation over the past decade have encouraged the search for even better polymers and membranes for gas separation. They also have motivated studies on the relationship between the structure and the gas transport properties of different classes of polymers. Interest has recently been demonstrated in the literature in norbornene polymers with different side groups. These polymers can easily be prepared via ring-opening metathesis polymerization (ROMP) of norbornene (bicyclo[2.2.1]hept-2-ene) derivatives. So far, information on the microstructure of the polymers is scarce, so little is known about the influence of stereochemistry and tacticity of the polymer on gas separation properties. In this work, we present gas permeability and selectivity data for stereoregular unsubstituted polynorbornene. It will be shown that a high order of tacticity has a positive effect on both permeation and separation results. © 1997 John Wiley & Sons, Inc.
Heteroatomic biradicals. Electron spin resonance spectroscopy of a nitrogen analog of 1,8-naphthoquinodimethane (1979)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHeteroatomic biradicals. Electron spin resonance spectroscopy of a nitrogen analog of 1,8-naphthoquinodimethaneMatthew S. Platz and John R. BurnsCite this: J. Am. Chem. Soc. 1979, 101, 15, 4425–4426Publication Date (Print):July 1, 1979Publication History Published online1 May 2002Published inissue 1 July 1979https://doi.org/10.1021/ja00509a086RIGHTS & PERMISSIONSArticle Views65Altmetric-Citations18LEARN 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 InReddit PDF (235 KB) Get e-Alerts Get e-Alerts
Programmable Real-Time Cancellation ofGLONASSInterference with the Green Bank Telescope (2005)

A programmable, real-time, digital signal processing (DSP), least-mean-squares (LMS) interference canceler was developed and demonstrated as a successful method of excising the GLONASS satellite L-band downlink signals from the 100 m Green Bank Telescope (GBT). This canceler has the potential for aiding the observation of redshifted OH lines near 1600 MHz in the presence of GLONASS signals. Our canceler approach is similar to experiments reported by Barnbaum and Bradley, Baan et al., and Kesteven et al. for mitigating ground-based radio frequency interference (RFI), but we add the new features of a tracking dish antenna to follow the satellite for improved cancellation performance, complex adaptive filter coefficients that reduce the required filter length, and a programmable delay line for bulk time delay correction. An analysis of LMS tracking performance for moving satellites is presented, and effective use of a reference antenna distantly located from the telescope is demonstrated. As is expected from the known properties of LMS cancelers, larger filter orders are shown to yield more reliable cancellation and are less sensitive to data time misalignment. GLONASS interference seen by the GBT was suppressed below the noise floor without corrupting a signal that simulated an astronomical source, even with rapid orbital transits and long integration times.
Simultaneous Purification and Fractionation of Nucleic Acids and Proteins from Complex Samples Using Bidirectional Isotachophoresis (2014)

We report on our efforts to create an on-chip system to simultaneously purify and fractionate nucleic acids and proteins from complex samples using isotachophoresis (ITP). We have developed this technique to simultaneously extract extracellular DNA and proteins from human blood serum samples and deliver these to two separate output reservoirs on a chip. The purified DNA is compatible with quantitative polymerase chain reaction (qPCR), and proteins can be extracted so as to exclude albumin, the most abundant protein in serum. We describe significant remaining challenges in making this bidirectional method a robust and efficient technique. These challenges include managing channel surface adsorption of proteins, identifying the cause of observed reductions in low molecular weight proteins, and dealing with nonspecific binding of proteins and DNA.
Visualization of the contact area between PVA brush and a surface using total reflection light (2018)

Scrub cleaning with PVA brushes is widely used in the post CMP cleaning process for semiconductor device manufacturing. PVA brushes are hydrophilic porous sponges, and the PVA brush scrubbing is a complex system in which a gas-liquid-solid interface exists. To elucidate the lubrication condition between a PVA brush and contacting surface, we observed the real contact area of the brush using a total reflection optical device. We investigated the real contact area of the brush by applying a normal load and sliding with various speeds. As a result, the real contact area increased with the increase of brush compression, however the increase was non-linear. It was also confirmed that contact points concentrated in the front part for moving direction and detached in the rear part on surfaces. Additionally, stick-slip motion was observed under low rotating speed by observing the contact surface of PVA roller brushes.