gebhart/patrepeval huggingface dataset:
The Active Viewer and the Problem of Interpretation: Reconciling Traditional and Critical Research (1992)

(1992). The Active Viewer and the Problem of Interpretation: Reconciling Traditional and Critical Research. Annals of the International Communication Association: Vol. 15, Communication Yearbook 15, pp. 91-106.
Projective translations and affine stereo calibration (2002)

This paper investigates the structure of projective translations-rigid translations expressed as homographies in projective space. A seven parameter representation is proposed, which explicitly represents the geometric entities constraining and defining the translation. A practical algebraic method for estimating these parameters is developed. It provides affine calibration of a stereo rig, determines the translation axis, and allows projective translations to be composed. The practical effectiveness of the calibration is evaluated on synthetic and real image data.
Formation of Enzymes of Autotrophic Metabolism During Heterotrophic Growth of Alcaligenes eutrophus (1981)

Alcaligenes eutrophus strain H16 formed key enzymes of autotrophic metabolism during heterotrophic growth. The formation of the soluble and membrane-bound hydrogenases, ribulose-5-phosphate kinase and ribulosebisphosphate carboxylase were investigated. In addition, selected enzymes shared by autotrophic and heterotrophic carbon metabolism were examined. Key enzymes of autotrophic metabolism were not detected during exponential growth on succinate, pyruvate or acetate, but were found at intermediate activities in cells grown on fructose, gluconate or citrate. Growth with succinate at a suboptimal pH of 7·7 resulted in a decreased growth rate and a marked increase of enzyme activities. Oxygen-limited growth with succinate also led to a derepression of the synthesis of the hydrogenases and the key enzymes of the Calvin cycle. During growth on glycerol or formate, the activities of these enzymes were comparable with those found under autotrophic conditions with H2 and CO2. The results indicate that both the hydrogenases and the key enzymes of the Calvin cycle were formed under conditions of limited availability of energy. Molecular hydrogen was not required for the formation of the hydrogenases. The regulation of the gluconeogenetic enzymes, common to both autotrophic and heterotrophic carbon metabolism, was more balanced. An increase of enzyme activities was observed under autotrophic conditions, in accord with the physiological role of these enzymes under autotrophic and heterotrophic growth conditions.
Polyfluoro Alkyl Ethers and their Preparation (1948)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPolyfluoro Alkyl Ethers and their PreparationJ. D. Park, D. K. Vail, K. R. Lea, and J. R. LacherCite this: J. Am. Chem. Soc. 1948, 70, 4, 1550–1552Publication Date (Print):April 1, 1948Publication History Published online1 May 2002Published inissue 1 April 1948https://pubs.acs.org/doi/10.1021/ja01184a076https://doi.org/10.1021/ja01184a076research-articleACS PublicationsRequest reuse permissionsArticle Views141Altmetric-Citations20LEARN 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
Dual-function remote plasma etching/cleaning system applied to selective etching of SiO2 and removal of polymeric residues (1993)

A dual-function chamber integrating (i) remote rf plasma-enhanced etching with low energy, &amp;lt;100 eV, ion bombardment and (ii) in situ Si surface cleaning and passivation is described. This plasma-assisted processing system is applied to the etching of SiO2 layers on Si(100) wafers, followed by the removal of the polymeric residues and the passivation of the exposed Si surface. A SiO2 etch rate of ∼5 nm/min was obtained at a CF4 partial pressure as low as 0.25 mTorr. An etching yield with respect to a single ion bombardment was estimated to be 0.38 (SiO2 unit/ion) at a substrate bias of −100 V. Combining in situ mass spectroscopy for end-point detection via the SiF+3 signal, and on-line Auger electron spectroscopy, we have followed the changes in the sample surface as the SiO2 layer was first removed, and the exposed Si surface was eventually contaminated with polymeric residues comprised of C and F. We discuss the effectiveness of in situ exposures to plasma-generated atomic H and/or reactive O in removing these polymeric residues.
Partial Charge Transfer in the Shortest Possible Metallofullerene Peapod, La@C82⊂[11]Cycloparaphenylene (2014)

[11]Cycloparaphenylene ([11]CPP) selectively encapsulates La@C82 to form the shortest possible metallofullerene-carbon nanotube (CNT) peapod, La@C82 ⊂[11]CPP, in solution and in the solid state. Complexation in solution was affected by the polarity of the solvent and was 16 times stronger in the polar solvent nitrobenzene than in the nonpolar solvent 1,2-dichlorobenzene. Electrochemical analysis revealed that the redox potentials of La@C82 were negatively shifted upon complexation from free La@C82 . Furthermore, the shifts in the redox potentials increased with polarity of the solvent. These results are consistent with formation of a polar complex, (La@C82 )(δ-) ⊂[11]CPP(δ+) , by partial electron transfer from [11]CPP to La@C82 . This is the first observation of such an electronic interaction between a fullerene pea and CPP pod. Theoretical calculations also supported partial charge transfer (0.07) from [11]CPP to La@C82 . The structure of the complex was unambiguously determined by X-ray crystallographic analysis, which showed the La atom inside the C82 near the periphery of the [11]CPP. The dipole moment of La@C82 was projected toward the CPP pea, nearly perpendicular to the CPP axis. The position of the La atom and the direction of the dipole moment in La@C82 ⊂[11]CPP were significantly different from those observed in La@C82 ⊂CNT, thus indicating a difference in orientation of the fullerene peas between fullerene-CPP and fullerene-CNT peapods. These results highlight the importance of pea-pea interactions in determining the orientation of the metallofullerene in metallofullerene-CNT peapods.
TiO2-Photocatalyzed As(III) Oxidation in a Fixed-Bed, Flow-Through Reactor (2006)

Compliance with the U.S. drinking water standard for arsenic (As) of 10 microg L(-1) is required in January 2006. This will necessitate implementation of treatment technologies for As removal by thousands of water suppliers. Although a variety of such technologies is available, most require preoxidation of As(III) to As(V) for efficient performance. Previous batch studies with illuminated TiO2 slurries have demonstrated that TiO2-photocatalyzed AS(III) oxidation occurs rapidly. This study examined reaction efficiency in a flow-through, fixed-bed reactor that provides a better model for treatment in practice. Glass beads were coated with mixed P25/sol gel TiO2 and employed in an upflow reactor irradiated from above. The reactor residence time, influent As(III) concentration, number of TiO2 coatings on the beads, solution matrix, and light source were varied to characterize this reaction and determine its feasibility for water treatment. Repeated usage of the same beads in multiple experiments or extended use was found to affect effluent As(V) concentrations but not the steady-state effluent As(III) concentration, which suggests that As(III) oxidation at the TiO2 surface undergoes dynamic sorption equilibration. Catalyst poisoning was not observed either from As(V) or from competitively adsorbing anions, although the higher steady-state effluent As(III) concentrations in synthetic groundwater compared to 5 mM NaNO3 indicated that competitive sorbates in the matrix partially hinder the reaction. A reactive transport model with rate constants proportional to incident light at each bead layer fit the experimental data well despite simplifying assumptions. TiO2-photocatalyzed oxidation of As(III) was also effective under natural sunlight. Limitations to the efficiency of As(III) oxidation in the fixed-bed reactor were attributable to constraints of the reactor geometry, which could be overcome by improved design. The fixed-bed TiO2 reactor offers an environmentally benign method for As(III) oxidation.
The Self-Association and Oxygen Equilibrium of Hemoglobin from the Lamprey, Entosphenus japonicus (1973)

Abstract Quantitative studies were made on the association of hemoglobin from the lamprey, Entosphenus japonicus, in a wide range of concentrations (0.01 to 3.4 mm) and pH values (5.6 to 8.0) with the aids of sedimentation equilibrium, sedimentation velocity, and diffusion measurements. Oxygen equilibrium was determined also in a wide range of concentrations by colorimetry and manometry. Molecular weights of the monomer and the largest aggregate were calculated to be 17,300 and 67,300, respectively, which correspond to that of the subunit of human hemoglobin and that of tetrameric human hemoglobin, respectively. The data of the sedimentation velocity and sedimentation equilibrium were computer analyzed assuming the rapid equilibrium of the monomer-dimer-tetramer, and the association constants for both deoxygenated and oxygenated lamprey hemoglobin were obtained. The association-dissociation equilibrium was dependent on pH. For the deoxygenated hemoglobin, the maximum value of 8.1 x 104 m-1 for K2, the constant for the monomer-dimer equilibrium, and 6.5 x 103 m-1 for K4, the constant for the dimer-tetramer equilibrium, were obtained at pH 5.9, and the values of both association constants decreased at higher pH. The association constants for oxyhemoglobin were much smaller than those for deoxyhemoglobin. The fractions of the dimers and tetramers, calculated for the lamprey deoxygenated hemoglobin under the physiological conditions in red cells, were 10% and 85%, respectively, and those for oxyhemoglobin were 36% and 15%, respectively. In the oxygen equilibrium of lamprey hemoglobin, it was shown that the oxygen partial pressure at half-saturation, p½ increased with increasing concentrations of hemoglobin, namely from 5 mm Hg at 2 µm to 350 mm Hg at 7.5 mm at pH 5.9, and that the heme-heme interaction constant, n, increased from 1.1 at very low concentration of hemoglobin to 1.6 at 0.6 mm, and then decreased to 1.0 at 7.5 mm. An assumption was made that monomers and tetramers each have a different constant affinity for oxygen which we determined experimentally from the oxygen equilibrium at a very low concentration and a very high concentration of hemoglobin, respectively. Oxygen equilibrium curves for lamprey hemoglobin were calculated from these two oxygen equilibrium constants and the association-dissociation constants determined both for deoxyhemoglobin and oxyhemoglobin. The results agreed well with those obtained experimentally, and the model was shown to be able to account for the characteristic oxygen binding properties of lamprey hemoglobin, namely heme-heme interaction, oxygen affinity, and the Bohr effect.
Wideband piezoelectric energy harvester for low-frequency application with plucking mechanism (2015)

Wireless sensor networks need energy harvesting from vibrational environment for their power supply. The conventional resonance type vibration energy harvesters, however, are not always effective for low frequency application. The purpose of this paper is to propose a high efficiency energy harvester for low frequency application by utilizing plucking and SSHI techniques, and to investigate the effects of applying those techniques in terms of the energy harvesting efficiency. First, we derived an approximate formulation of energy harvesting efficiency of the plucking device by theoretical analysis. Next, it was confirmed that the improved efficiency agreed with numerical and experimental results. Also, a parallel SSHI, a switching circuit technique to improve the performance of the harvester was introduced and examined by numerical simulations and experiments. Contrary to the simulated results in which the efficiency was improved from 13.1% to 22.6% by introducing the SSHI circuit, the efficiency obtained in the experiment was only 7.43%. This would due to the internal resistance of the inductors and photo MOS relays on the switching circuit and the simulation including this factor revealed large negative influence of it. This result suggested that the reduction of the switching resistance was significantly important to the implementation of SSHI.
Disparities in the Delivery of Pediatric Trauma Care (2009)

Although this analysis does not provide a definitive answer to the question as to which type of trauma center provides better care for injured pediatric patients, it identifies current gaps and disparities in the care of injured children that can be remedied through education and training.
Trained immunity and perspectives for shrimp aquaculture (2020)

Abstract The global production of cultured crustaceans for 2018 is predicted to be ~8.63 million tonnes, and shrimp represents a significant portion of cultured crustaceans. Demands for shrimp are raising, also in developing countries as consumer preferences have evolved with rising incomes. Shrimp is mainly produced for consumption but during processing economically valuable products are being generated such as chitosan, which is used in cosmetics, food and beverages, agrochemicals and pharmaceuticals. However, the potential and sustainability of shrimp aquaculture production currently suffer from high mortality rates, losses due to especially bacterial and viral infections, and hence suboptimal yields. Vibrio parahaemolyticus acute hepatopancreatic necrosis and white spot syndrome virus (WSSV) disease outbreaks are examples of economically devastating disease outbreaks in shrimp. There is a need for prophylaxis of infectious diseases and for finding novel strategies for conditioning economically important shrimp broods so that they can produce more robust progenies and develop tolerance against biotic (pathogens) and abiotic stressors. Training the innate immune system of shrimp could be a possible avenue for improving animal’s health, and it might serve as potential unique strategy for conditioning the brood stock to have more robust progenies. The current review provides an overview on innate immune responses in shrimp after exposure to bacteria, viruses and abiotic stressors and on the possibilities to train the innate immune system of shrimp in order to improve health, not only of the animal itself but also of its progeny.
Capacitive sensor array for localization of bioparticles in CMOS lab-on-a-chip (2004)

Fully-electronic detection of cells and microbeads is achieved on a 320x320 array of capacitive sensors in 0.35/spl mu/m 2P3M CMOS technology that also integrates particle actuation by dielectrophoresis. Particle-associated equivalent input capacitance variations larger than 0.42fF are measured with 39dB SNR. Output noise is /spl les/1.6mV, the resolution of the 12b ADC.
Automating customized computing (2014)

Summary form only given. Customized computing has been of interest to the research community for over three decades. The interest has intensified in the recent years as the power and energy become a significant limiting factor to the computing industry. For example, the energy consumed by the datacenters of some large internet service provides is well over 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">9</sup> Kilowatt-hours. FPGA-based acceleration has shown 10-1000X performance/energy efficiency over the general-purpose processors in many applications. However, programming FPGAs as a computing device is still a significant challenge. Most of accelerators are designed using manual RTL coding. The recent progress in high-level synthesis (HLS) has improved the programming productivity considerably where one can quickly implement functional blocks written using high-level programming languages as C or C++ instead of RTL. But in using the HLS tool for accelerated computing, the programmer still faces a lot of design decisions, such as implementation choices of each module and communication schemes between different modules, and has to implement additional logic for data management, such as memory partitioning, data prefetching and reuse. Extensive source code rewriting is often required to achieve high-performance acceleration using the existing HLS tools. In this talk, I shall present the ongoing work at UCLA to enable further automation for customized computing. One effort is on automated compilation to combining source-code level transformation for HLS with efficient parameterized architecture template generations. I shall highlight our progress on loop restructuring and code generation, memory partitioning, data prefetching and reuse, combined module selection, duplication, and scheduling with communication optimization. These techniques allows the programmer to easily compile computation kernels to FPGAs for acceleration. Another direction is to develop efficient runtime support for scheduling and transparent resource management for integration of FPGAs for datacenter-scale acceleration, which is becoming a reality (for example, Microsoft recently used over 1,600 servers with FPGAs for accelerating their search engine and reported very encouraging results). Our runtime system provides scheduling and resource management support at multiple levels, including server node-level, job-level, and datacenter-level so that programmer can make use the existing programming interfaces, such as MapReduce or Hadoop, for large-scale distributed computation.
Joint analysis of differential mobility spectrometer and mass spectrometer features for tuberculosis biomarkers (2008)

In this article, we present results of recent efforts to identify biomarkers for tuberculosis using a differential mobility spectrometer (DMS). We focus specifically on the capability of exploiting a data collection system that employs a DMS in parallel with a mass spectrometer. This system permits previously developed algorithms for DMS to be used in conjunction with a device considered a gold-standard for chemical identification, making it a unique discovery tool for the determination of biomarkers.
Vaginal colonization with Gardnerella vaginalis and anaerobic curved rods. (1984)

Ninety-four women colonized with anaerobic curved rods (CR) and/or Gardnerella vaginalis, were studied. Of these women, 34 were culture-positive for the long variant of CR. Eight of these latter women also harboured the short variant of these bacteria. In women colonized with CR, none had a predominance of lactobacilli in their vaginal flora, which was the case in 26 of the 60 women not harbouring CR. G. vaginalis was isolated from all 94 women. Mycoplasma hominis occurred significantly more often in women colonized with CR and G. vaginalis as compared with women not harbouring CR, but who were colonized with G. vaginalis (p less than 0.0005). The recovery rate of chlamydiae and gonococci was remarkably low, i.e. the organisms were isolated from one case each. Women colonized with CR complained of foul-smelling vaginal discharge significantly more often than women not found to harbour such organisms (p less than 0.001). In all women with CR, the number of leukocytes per high-power field of vaginal secretion exceeded that of 'clue cells'. Such cells were found in all patients with CR, but not in women with a lactobacilli-dominated flora, despite the fact that they all harboured G. vaginalis. Bacterial vaginosis might be due to a symbiotic infection with G. vaginalis and CR, possibly in conjunction with other anaerobes and/or M. hominis.
Supplementary Figure 3 from TWEAK–Fn14–RelB Signaling Cascade Promotes Stem Cell–like Features that Contribute to Post-Chemotherapy Ovarian Cancer Relapse (2023)

&lt;p&gt;Mouse TWEAK activates NF-κB pathway in human ovarian cancer cells.&lt;/p&gt;
Application and optimization of PML ABC for the 3-D wave equation in the time domain (2003)

A three-dimensional algorithm with the perfectly matched layer (PML) absorbing boundary condition (ABC) for the scalar wave equation in the time domain is presented for general inhomogeneous lossy or loss-free problems. The proposed PML ABC is applicable to practical finite difference schemes treating the time-domain wave equation, such as the time-domain wave-potential (TDWP) technique and the time-domain scalar wave equation approaches to the analysis of optical structures. The time-domain wave equation for lossy media is expressed in terms of stretched coordinate variables. The algorithm is tested for homogeneous and inhomogeneous media. We demonstrate applications to open (radiation) problems and to port terminations in high-frequency circuit problems. New PML conductivity profiles are developed for use with the second order wave equation, which offer lower reflections in a wider frequency band in comparison with the commonly used (in finite-difference time-domain (FDTD) algorithms) profiles. The effect of the termination walls on the overall PML performance is studied and the best choices are singled out.
The Atrioventricular Node, his Bundle and Bundle Branches-a New Histologic Technique (1977)

A technique for examination of the conducting system of the heart is described. A block of tissue embracing the ostium of the coronary sinus, the pars membranacea, the septal leaflet of the tricuspid valve, and appropriate amounts of interatrial and interventricular septum is flattened and fixed in a Kaiserling I solution. Blocks are subsequently cleared in methyl salicylate and trimmed. Sections are cut from the blocks after paraffin embedding beginning from the endocardial surfaces of the right heart chambers. The sections are mounted and stained on 35 mm unperforated leader film and covered with an acrylic preservative. For examination of the conducting system many fewer sections are required than with previous techniques.
Crystal and molecular structure of (2–3‐η‐2‐Butyne‐1,4‐diol)‐bis‐(triphenylphosphan)‐nickel(O) Ni{[(C6H5)3P]2 (C4H6O2)} (1988)

Abstract The crystal and molecular structure of (2–3‐η‐2‐Butyne‐1,4‐diol)‐bis‐(triphenylphosphan)‐nickel(O) has been determined by X‐ray structure analysis. It crystallizes in the tetragonal space group 1 4 with the cell parameters a = b = 22.277(3), and c = 15.118 (4) Å. The structure was solved by the heavy atom method and refined to R = 0.0716. The coordination geometry about the nickel atom is trigonal‐planar. Each molecule is hydrogen bonded to two neighbours. The result is an eight‐membered oxygen ring.
Process Modeling of a Novel Biomass Upgrading Plant as a Renewable Source of Added-Value Chemicals (2018)

International audience