gebhart/patrepeval huggingface dataset:
A Dual-Band Metasheet for Asymmetric Microwave Transmission With Polarization Conversion (2019)

A metamaterial-based planar polarization conversion screen is designed by exploiting the mutual interactions between two distinct types of resonators. The design starts from a unit cell comprising a subwavelength T-type resonator and a rectangular split-ring resonator (RSRR). In order to enhance the cross-polarization conversion, the unit cell is rotated by 90° to obtain a chiral geometry and the right diagonal elements are scaled down to construct a rotationally asymmetric $2\,\times \,2$ supercell. The supercells are arranged periodically on either side of the substrate. In the bottom layer, each element is rotated by 90° with respect to the corresponding element in the top layer to achieve the asymmetric transmission property and to introduce the desired phase difference between the two orthogonal linear vector components of the transmitted wave. The proposed design exhibits very good circular polarization efficiency, which is primarily achieved by transverse magnetic dipole-magnetic dipole coupling. The polarizer has an ellipticity of 44.4° and a polarization extinction ratio of 37.30 dB at 14.79 GHz. Furthermore, the polarization conversion ratio for both linear orthogonal components is identical at this frequency. At 9.15 GHz, strong orthogonal polarization rotation is observed. The electrical size of the unit cell is $0.25\lambda _{0} \times 0.25\lambda _{0} \times 0.077\lambda _{0}$ . Simulation and measurement results are presented to verify the performance of the polarization converter.
In Situ ESD Protection Structure for Variable Operating Voltage Interface Applications in 28-nm CMOS Process (2014)

A multiple-discharge-path electrostatic discharge (ESD) cell for protecting input/output (IO) pins with a variable operating voltage (0.5–3.5 V) is presented. This device is optimized for low capacitance and synthesized with the circuit IO components for in situ ESD protection in communication interface applications developed in the 28-nm high-k metal-gate CMOS technology.
ChemInform Abstract: Visible Light‐Induced Photoeletrochemical and Antimicrobial Properties of Hierarchical CuBi2O4 by Facile Hydrothermal Synthesis. (2016)

Abstract Narrow bandgap semiconductor CuBi 2 O 4 microstructures (3D hierarchical microspheres, microflowers, 1D microrods and nanorods) are fabricated by varying the conditions in hydrothermal reaction of stoichiometric amounts of Cu(NO 3 ) 2 and Bi(NO 3 ) 3 by differently concentrated NaOH additions (autoclave, 100 °C, 24 h).
Characterization of the effect of influenza virus on polymorphonuclear leukocyte membrane responses (1984)

Depressed chemotactic activity of polymorphonuclear leukocytes (PMNL) infected with influenza virus could be due to changes occurring at the plasma membrane. The present study examined the effect of unopsonized influenza virus on chemotaxis, adherence, receptor binding, shape change, membrane fluidity, and release of specific granules from PMNL. Chemotactic activity of PMNL under-agarose to the chemoattractants, zymosan-activated serum ( ZAS ) and N-formyl-methionyl-leucyl- phenylalanine (fMLP), and adherence of PMNL to a plastic surface were markedly decreased in virus-treated cells as compared to control cells. The binding of fMLP to the PMNL was increased in virus-treated cells compared with control cells. Exposure of cells to virus, ZAS , or fMLP caused 35%-50% of the cells to become bipolar in shape, whereas less than 5% of the cells exposed to buffer became bipolar. Influenza virus did not alter membrane fluidity as measured by electron spin resonance spectroscopy with the probe 5-doxyl stearate. Virus-treated PMNL stimulated with FMLP or Staphylococcus aureus exhibited a marked decrease in the amount of lactoferrin released into phagosomes, onto the cells' outer membrane, and into the extracellular medium as compared to control cells. The possible relationship between inhibition of lysosomal enzyme degranulation and decreased chemotactic activity and adherence of PMNL is discussed.
Control of Rotating Exciters for Power System Damping: Pilot Applications and Experience (1969)

Control of rotating exciters to improve system damping has been carried forward in pilot applications to evaluate practicality, effectiveness, alinement needs, and operating characteristics. The first application to this type of exciter system has been in operation since July 1967. These pilot applications include exciters with rotating amplifier regulators and with static regulators. Information yield has been high. New control requirements have been indicated and satisfied. Tests and alinement procedures, application criteria, and auxiliary techniques have been developed. Results have been gratifying.
Influence of saturation effects in a transverse flux machine (2008)

In this paper the torque density of transverse flux machines is investigated against the flux density inside the active parts with analytical calculations and FEM simulations. Especially saturation effects, which reduce the flux linkage with the coil, and core losses, are considered for both, the flux concentrating setup and the surface mounted magnets topology. The calculations are verified by measurements on an existing prototype. Finally new design guidelines are developed for the construction of TFMs with regard to the magnetic circuit.
Synergistic Effect of Bolus Exposure to Zinc Oxide Nanoparticles on Bleomycin-Induced Secretion of Pro-Fibrotic Cytokines without Lasting Fibrotic Changes in Murine Lungs (2014)

Zinc oxide (ZnO) nanoparticles are widely used in various products, and the safety evaluation of this manufactured material is important. The present study investigated the inflammatory and fibrotic effects of pulmonary exposure to ZnO nanoparticles in a mouse model of pulmonary fibrosis. Pulmonary fibrosis was induced by constant subcutaneous infusion of bleomycin (BLM). Female C57BL/6Jcl mice were divided into BLM-treated and non-treated groups. In each treatment group, 0, 10, 20 or 30 µg of ZnO nanoparticles were delivered into the lungs through pharyngeal aspiration. Bronchoalveolar lavage fluid (BALF) and the lungs were sampled at Day 10 or 14 after administration. Pulmonary exposure by a single bolus of ZnO nanoparticles resulted in severe, but transient inflammatory infiltration and thickening of the alveolar septa in the lungs, along with the increase of total and differential cell counts in BLAF. The BALF level of interleukin (IL)-1β and transforming growth factor (TGF)-β was increased at Day 10 and 14, respectively. At Day 10, the synergistic effect of BLM and ZnO exposure was detected on IL-1β and monocyte chemotactic protein (MCP)-1 in BALF. The present study demonstrated the synergistic effect of pulmonary exposure to ZnO nanoparticles and subcutaneous infusion of BLM on the secretion of pro-fibrotic cytokines in the lungs.
Transformation of neoclerodane diterpenoids into 19-norneoclerodane derivatives (1991)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTransformation of neoclerodane diterpenoids into 19-norneoclerodane derivativesGema Dominguez, Maria C. De la Torre, and Benjamin RodriguezCite this: J. Org. Chem. 1991, 56, 23, 6595–6600Publication Date (Print):November 1, 1991Publication History Published online1 May 2002Published inissue 1 November 1991https://doi.org/10.1021/jo00023a027RIGHTS & PERMISSIONSArticle Views197Altmetric-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 (796 KB) Get e-AlertsSupporting Info (1)»Supporting Information Supporting Information Get e-Alerts
Carbon-nanotube-supported POXA1b laccase and its hydrophobin chimera for oxygen reduction and picomolar phenol biosensing (2021)

The immobilization of POXA1b laccase and its hydrophobin-fused chimera was performed at pristine Multiwalled Carbon Nanotube (MWCNT) and MWCNT-modified electrodes by electrografting of a 2-diazoniumanthraquinone salt. The influence of the hydrophobin domain and the MWCNT functionalization with anthraquinone groups towards immobilization of laccase was compared by direct electrochemistry under O2 and electrochemical biosensing of phenols. The hydrophobin domain affords the stable dispersion of MWCNT in water/ethanol, while being detrimental to the direct electron transfer between POXA1b and the electrode. On the contrary, the stronger hydrophobic interactions between anthraquinone and laccase affords direct electrochemistry of POXA1b and enabled the design of a highly sensitive phenol biosensor, reaching a limit-of-detection (LOD) of 2 pM and sensitivity of 23,600 mA L mmol−1 cm−2 for catechol, and a LOD of 15 nM and sensitivity of 0.053 mA L mmol−1 cm−2 for dopamine.
Noise Effects in RTD-Fluxgate (2006)

Models and an extensive set of theoretical findings of residence times difference (RTD) fluxgate have been already presented in previous papers. A very simple sensor structure, negligible onboard power requirements and the intrinsic digital form of the readout signal are the main features of the proposed strategy. In this paper we aim to investigate main sources of uncertainty, including noise, and possible strategies to limit their effects on the devices; finally results on noise characterization are presented.
Nanomaterials produced by laser ablation techniques part I: synthesis and passivation of nanoparticles (2006)

We have formed nanoparticles of Si, C, Ti, and Fe by pulsed laser ablation and have explored the feasibility of passivating these particles during the synthesis process in order to minimize particle coarsening. Passivation was done by forming the nanoparticles in an Ar/N<sub>2</sub> background, which allowed the formation of a thin nitride layer on the nanoparticle surface. In this paper we describe the synthesis procedure for synthesizing and passivating the nanoparticles. The characterization results indicate the nanoparticle synthesis in N<sub>2</sub> does not significantly affect agglomeration.
Molecular epidemiologic analysis of hepatitis C virus infection in injecting drug users with acute hepatitis C in Japan (2004)

Hepatitis C virus of the non-1b subtype, particularly subtype 2b, seemed to be transmitted between IDUs very recently in Yamaguchi prefecture, Japan.
Amorphous optical polyimides for thermally stable, high-temperature optical components (2023)

We have investigated a select group of amorphous aromatic polyimides to determine their potential suitability in fabricating thermally stable optical components, intended for use at high temperatures. Compared to current commercial polymers, these polyimides have much higher glass transition and decomposition temperatures, and also have much lower thermo-optic and thermal expansion coefficients. This combination of characteristics makes them potentially useful in a wide range of commercial and military applications. To better understand the optical properties of these polyimides, we have investigated correlations between several aspects of their chemical structures and their thermo-optical properties. Our study consisted of synthesizing variations of these polyimides, which incorporated targeted structural modifications, and then correlating these structures with trends observed in their optical properties. The modifications studied included the substitution of a variety of side groups that affect the low-frequency vibrational modes, the substitution of structural isomers with distinct symmetries, and the introduction of functional groups that alter the monomer-level anisotropy. Furthermore, we also investigated copolymerization in compatible pairs of monomers as a means of fine-tuning the thermo-optical properties.
Mixed-sequence pyrrolidine-amide oligonucleotide mimics: Boc(Z) synthesis and DNA/RNA binding properties (2006)

Pyrrolidine-amide oligonucleotide mimics (POMs) exhibit promising properties for potential applications, including in vivo DNA and RNA targeting, diagnostics and bioanalysis. Before POMs can be evaluated in these applications it is first necessary to synthesise and establish the properties of fully modified oligomers, with biologically relevant mixed sequences. Accordingly, Boc-Z-protected thyminyl, adeninyl and cytosinyl POM monomers were prepared and used in the first successful solid phase synthesis of a mixed sequence POM, Lys-TCACAACTT-NH2. UV thermal denaturation studies revealed that the POM oligomer is capable of hybridising with sequence selectivity to both complementary parallel and antiparallel RNA and DNA strands. Whilst the duplex melting temperatures (Tm) were higher than the corresponding duplexes formed with isosequential PNA, DNA and RNA oligomers the rates of association/dissociation of the mixed sequence POM with DNA/RNA targets were noticeably slower.
ChemInform Abstract: ALKYNES AND CUMULENES. XII. THE USE OF DI‐TERT‐BUTYL ACETYLENEDICARBOXYLATE IN DIELS‐ALDER ADDITIONS (1980)

Abstract Die Titelverbindung (II) reagiert in guten Ausb. mit den Modell‐Dienen (I), (V) bzw. (X) zu den Addukten (III), (VI) bzw. (XI).
Secretion of glycoproteins during hatching of Heterodera Avenae (1997)

The study of the chemical nature of the exudates, water permeability and other changes at the time of hatching from eggs as well as from freshly hatched larvae of two ecotypes of cereal cyst nematode, Heterodera avenae showed that water content of hatched and unhatched larvae was 70%. Uptake of water by eggs and larvae inside eggs seemed to have no role in hatching process, while glycoproteins were released in the hatching media.
Development of Green Chemicals For Cleaning Operations in Platforms Decommissioning (2005)

Proposal Chemicals in decommissioning activities are not considered as an important challenge as far as all the products used are selected from the PLONOR list. Consequently, an important work has to be done to obtain safe and efficient products to facilitate cleaning operations and to limit the volumes of polluted water. The main constraint is to propose detergent formulations that are non-toxic and biodegradable. Furthermore, formulations must be compatible with cold seawater and must allow a fast separation of hydrocarbons from the aqueous phase. The objective of this paper is to present the development of a strict methodology for cleaning products selection. The innovative aspect of this methodology is firstly based on a pre-selection of safe molecules coming from a green chemistry, such as alkylpolyglycosides for instance. In a second step, formulations based on mixtures of several efficient and safe active matters are tested on different supports (glass, steel, cement…) in order to assess their detergent efficiency against several types of crude oils and weathered crude oils, the kinetics of separation of the formed emulsion, the formation of foam and the quality of the separated aqueous phase. Ecotoxicity tests on molecules are performed according to OSPARCOM guidelines (aquatic toxicity, biodegradation, and bioaccumulation). Complementary toxicity tests are also carried out on the separated water after cleaning, in order to estimate the toxicity of the aqueous phase to be discharged. The last phase of the methodology consists in a validation of formulations performances in large scale experiments performed in CEDRE (Center of Documentation, Research and Experimentations on accidental water pollutions, France), on a specific clean-up device that simulates typical operations of cleaning under pressure. The main objective is to develop green formulations for cleaning oil polluted surfaces through a rigorous methodology based on technical and environmental criteria.
J182012 Effects of Brake Starting Assistance System for Train Drivers on Running Time (2013)

This study examines effects of the brake onset assistance on running time and a safety margin to stop. The assistance system informs the driver visually of a brake onset position, which is calculated by the assumed deceleration and the present vehicle velocity. Train-driving simulator experiments are examined by changing the assumed deceleration, i.e. the brake onset timing. Obtained results show a good correlation between the assumed deceleration and the running time. It is also observed between the assumed deceleration and the safety margin to stop. We can adjust both the running time and the safety margin by changing the assumed deceleration.
Luminescent nanocrystals – Photophysics and applications for lifetime multiplexing (2019)

Bioanalytical, diagnostic, and security applications require the fast and sensitive determination of a steadily increasing number of analytes or events in parallel in a broad variety of detection formats.[1,2] Ideal candidates for spectral encoding and multiplexing schemes are luminescent nanocrystals like semiconductor quantum dots (QDs), particularly Cd-containing II/VI QDs with their narrow and symmetric emission bands. With the availability of relatively simple and inexpensive instrumentation for time-resolved fluorescence measurements, similar strategies utilizing the compound-specific parameter fluorescence lifetime or fluorescence decay kinetics become increasingly attractive.[3-5] The potential of different types of QDs like II/VI, III/V and Cd-free ternary QDs such as AgInS (AIS) QDs for lifetime-based encoding and multiplexing has been, however, barely utilized, although the lifetimes of these nanocrystals cover a time windows which is barely accessible with other fluorophores. Here we present a brief insight into the photophysics of AIS QDs and show the potential of dye- and QD-encoded beads for lifetime-based encoding and detection schemes in conjunction with flow cytometry and fluorescence lifetime imaging microscopy
Association between pericoronary adipose tissue attenuation and outcome after second-generation cryoballoon ablation for atrial fibrillation (2021)

Assessment of 3V-PCATA may identify patients at high risk of AF recurrence after CBA for AF.
Abstract PR02: “Guardians of repeats”: Novel and significant relationship of p53 and interferon (2013)

Abstract Large parts of mammalian genomes are transcriptionally inactive and enriched with various classes of interspersed and tandem repeats. Here we show that the tumor suppressor protein p53, along with DNA methylation, plays an essential role in maintaining silencing of a large portion of the mouse genome. In the absence of functional p53, hypomethylation of DNA results in massive transcription of major classes of short interspersed repeats (SINEs B1 and B2), both strands of near-centromeric satellite DNAs consisting of tandem repeats, and multiple species of non-coding RNAs. In p53-deficient mouse fibroblasts treated with the DNA demethylating agent 5-aza-2'-deoxycytidine, the abundance of these new transcripts exceeds the level of β-actin mRNA by more than 150-fold. Accumulation of these largely double-stranded transcripts, in the absence of p53, is accompanied with a strong endogenous type I interferon response that induces apoptotic cell death. Transcriptional activation of repeats and non-coding RNAs is observed in a significant proportion of spontaneous mouse tumors, presumably reflecting naturally occurring DNA hypomethylation and p53 inactivation. These observations suggest that p53 and IFN cooperate to prevent accumulation of cells with activated repeats. This model, which we have named TRAIN (Transcription of Repeats Activates INterferon), assigns a novel role to p53 as a guardian of repeats. TRAIN model provides plausible explanation for frequent deregulation of interferon pathway observed in a variety of tumors. Overall, this work highlights the cooperation between p53 and interferon as key players needed to maintain genetic stability, and even further outlines their significance in tumor progression and the evolution of the species. Citation Format: Katerina Leonova, Andrei Gudkov. “Guardians of repeats”: Novel and significant relationship of p53 and interferon. [abstract]. In: Proceedings of the Third AACR International Conference on Frontiers in Basic Cancer Research; Sep 18-22, 2013; National Harbor, MD. Philadelphia (PA): AACR; Cancer Res 2013;73(19 Suppl):Abstract nr PR02.
Reversal of end-stage renal disease after aortic dissection using renal artery stent: a case report (2004)

Percutaneous intervention provides a promising alternative for patients with Type B aortic dissections when medical treatment will not improve the likelihood of meaningful recovery and surgery entails too great a risk. Nephrologists should therefore be aggressive in the workup of ischemic renal failure associated with aortic dissection as percutaneous intervention may reverse the effects of renal failure in this population.
Offspring predisposition to obesity due to maternal‐diet‐induced obesity in rats is preventable by dietary normalization before mating (2016)

Removal of CD in obese rats before gestation, although without complete reversion of body weight excess, may prevent the expected detrimental effects in offspring associated to an excess fat accumulation in adulthood and the related metabolic disturbances.
Experimental Investigation on Rigid Rotor Balance Containing Error in Influence Coefficient. Comparison of Balancing Condition between the Least Squares Method and the Influence Coefficient Method. (1995)

This paper presents experiments for balancing a rigid rotor. The influence coefficient and least squares balancing methods are compared assuming that the influence coefficients used to calculate correction masses contain errors. The errors in the influence coefficients occur in (1) amplitude, (2) phase angle and (3) the combination of the two. In the three cases, a number of balancing experiments are carried out and comparison of balancing conditions using two balancing methods is discussed. The results show that the least squares method produces better balancing conditions than the influence coefficient method.
Interactions between pairs of DNA-specific fluorescent stains bound to mammalian cells. (1979)

The interactions between DNA-specific fluorescence stains complexed with mitotic Chinese hamster cells were studied by spectrofluorometric and flow fluorometric techniques. The degree of binding interactions and of energy transfer between stains was determined from the intensities and shapes of fluorescence emission spectra of cells complexed with pairs of stains. The stain pairs Hoechst 33258-chromomycin A3, Hoechst 33258-ethidium bromide, and chromomycin A3-ethidium bromide exhibited efficient energy transfer from the short wavelength absorber (donor) to the long wavelength absorber (acceptor), and little competitive or cooperative binding of stains. The stain pair quinacrine-ethidium bromide exhibited both energy transfer and competitive binding. None of the stain pairs showed evidence of strong electronic interactions between stains. The magnitude of energy transfer interactions was used to estimate the quantity and distribution of the stains molecules complexed to mitotic cells. The results indicate a fairly even distribution of each of these stains along the DNA of intracellular mitotic chromosomes.
Infective Endocarditis in the Elderly (2005)

This chapter contains sections titled: Introduction Incidence Demography Risk Factors Microbial Etiology Mortality Pathogenesis Prophylaxis Clinical Features Diagnosis Management Conclusion Key References References