gebhart/patrepeval huggingface dataset:
Experimental research and design of microwave power transmission system for SSPS application (2018)

Microwave power transmission (MPT) is the core technology of the Space Solar Power Satellite (SSPS). Experimental research and design of a MPT system considering the proposed limit for the center-of-beam power densities to assure environmental health and safety for microwave transmission was presented in this paper. Under the power density limit, an experimental system with solid power amplifier at 5.8 GHz was constructed and tested. In addition, to solve the problem of efficiency decline because of impedance mismatch in different interface between antenna output and rectifier circuit input, meanwhile to block harmonic re-radiation caused by nonlinearity of rectifier circuit, rectifying surface was researched based on sub-wavelength element in rectenna. By changing structure conjugated match between antenna output impedance and rectifier circuit input impedance, the rectifying surface exhibits a strong restrain to high-order harmonics and eliminating the need for RF filter which is an important element for the traditional rectenna, so the circuit structure is simple and high conversion efficiency can realize. In experiment, the measured maximum conversion efficiency of RF to DC is 57.7 %. The results show that the designed microwave power transmission system is benefit for ground demonstration testing in miniature version and building of SSPS in future.
Hybridoma anti-DNA autoantibodies from patients with rheumatoid arthritis and systemic lupus erythematosus demonstrate similar nucleic acid binding characteristics. (1985)

Hybridoma anti-DNA antibodies have been generated from the fusion of the GM 4672 lymphoblastoid line with peripheral blood lymphocytes from four normal subjects, nine patients with rheumatoid arthritis (RA), and 13 patients with systemic lupus erythematosus (SLE). A total of 441 hybridoma clones were obtained, of which 37 secreted anti-DNA autoantibodies. The nucleic acid binding characteristics of the anti-DNA antibodies produced by two hybridomas from normal subjects, nine hybridomas from RA patients, and 18 hybridomas from SLE patients are reported. The hybridoma anti-DNA antibodies from all three groups showed similar antigen-binding characteristics for denatured DNA (dDNA), native DNA (nDNA), poly(I), poly(dT), and cardiolipin, by both direct binding and competitive binding analyses. One difference noted between normal-derived anti-DNA antibodies and autoimmune-derived antibodies was the inability of the former to react with z-DNA. However, this requires further substantiation with larger numbers of normal-derived clones. The broad overlap of reactivity to nucleic acid antigens among individual anti-DNA autoantibodies found in two clinically different autoimmune diseases, namely RA and SLE, suggests that the pathogenicity of anti-DNA autoantibodies may bear no relationship to their nucleic acid antigen-binding characteristics.
Transgenic Expression of Insulin Receptor Substrate 2 in Murine B Cells Alters the Cell Density-Dependence of IgE Production In Vitro and Enhances IgE Production In Vivo (2004)

Previous studies have shown that insulin receptor substrate (IRS)1 and IRS2 mediate proliferative and antiapoptotic signaling through the IL-4R in 32D cells; however their role in regulating normal B cell responses is not clear. To investigate the role of IRS2 in normal B cell function, we developed IRS2 transgenic (Tg) mice on the C57BL/6 background. Western blot analysis revealed a 2-fold elevation in IRS2 protein levels in Tg(+) mice compared with littermate controls and a 3-fold increase in basal tyrosine phosphorylated IRS2 in the absence of IL-4 stimulation. IL-4-induced tyrosine phosphorylation of IRS2 was elevated in Tg(+) B cells, whereas IL-4-induced phosphorylation of STAT6 was similar between Tg(+) and Tg(-) B cells. Tg expression of IRS2 had little effect on IL-4-mediated proliferation and no effect on protection from apoptosis. However, production of IgE and IgG1 by Tg(+) B cells using standard in vitro conditions was diminished 50-60%. Because Ig production in vitro is known to be highly cell concentration-dependent, we performed experiments at different cell concentrations. Interestingly, at very low B cell concentrations (1000-5000 B cells/well), IgE and IgG1 production by Tg(+) B cells was greater than that of controls, whereas at higher cell concentrations (10,000-20,000 cells/well) Ig production by Tg(+) B cells was less than controls. Furthermore, in vivo immunization with OVA-alum or goat anti-IgD resulted in elevated serum IgE levels in the Tg(+) mice. These results indicate that overexpression of IRS2 alters the B cell intrinsic density-dependence of IgE and IgG1 production in vitro and enhances IgE responses in vivo.
Cellular and Molecular Physiology of Cell Volume Regulation (2020)

Fundamental Principles and Physiological Roles of Cell Volume Regulation: Principles of Cell Volume Regulation (K.R. Hallows and P.A. Knauf). Volume Regulation in Epithelia: Transcellular Transport and Cross-Talk (L. Reuss and C.U. Cotton). Volume Regulation in Renal Medullary Nephron Segments (A.M. Sun and S.C. Hebert). Clinical Significance of Cellular Osmoregulation (M.L. McManus and K.B. Churchwell). Organic Osmolytes: Compatible and Counteracting Solutes (P.H. Yancey). Regulation of Cellular Amino Acid Levels (J.S. Ballantyne and M.E. Chamberlin). The Role and Regulation of Methylamines in the Response of Cells to Osmotic Stress (J. Dragolovich and S.K. Pierce). Regulation of Intracellular Polyols and Sugars in Response to Osmotic Stress (J.M. Sands). Volume Sensing and Signal Transduction: Cellular Signal Transduction Mechanisms (T. Force and J.V. Bonventre). Influence of Macromolecular Crowding on Intracellular Association Reactions: Possible Role in Volume Regulation (A.P. Minton). How an Epithelial Cell Swells is a Determinant of the Signalling Pathways that Activate RVD (R.J. Macleod). Protein Phosphorylation Control in the Activity of Volume-Sensitive Transport Systems (H.C. Palfrey). Stretch-Activated Ion Channels (H. Sackin). The Cytoskeleton and Cell Volume Regulation (J.W. Mills, E.M. Schwiebert, and B.A. Stanton). The Role of Calcium in the Control of Volume Regulatory Transport Pathways (J.K. Foskett). Eicosanoids and Cell Volume Regulation (I.H. Lambert). Involvement of a G Protein in the Shrinkage-Induced Activation of Na-H Exchange in Barnacle Muscle Fibers (W.F. Boron, E.M. Hogan, and B.A. Davis). Coordinated Regulation of Volume-Activated Transport Pathways (J.C. Parker). Role of Gene Expression in Cell Volume Control: Regulation of Eukaryotic Gene Expression (A. Garcia-Perez). Gene Expression and Osmoregulation in Bacteria (H.H. Yim and M.R. Villarejo). Genetic Control of Osmoregulation in Plants (D. Rhodes and Y. Samaras). Transcription Factors and Stress Proteins in Renal Epithelial Cell Adaptation to Hyperosmotic Stress (D.M. Cohen and S.R. Gullans). Aldose Reductase Gene Expression and Osmoregulation in Mammalian Renal Cells (A. Garcia-Perez and J.D. Ferraris). Molecular Regulation of Mammalian Osmolyte Transporters (H.M. Kwon).
Noniterative Phase Retrieval from a Single Diffraction Intensity Pattern by Use of an Aperture Array (2007)

A noniterative method for retrieving the phase of a wave field from a diffraction intensity measurement in a coherent wave field is proposed. In this method, the phase can be calculated from analytic equations based on the properties of entire functions by use of Fourier transforms. This method requires only a single measurement of the intensity of a diffracted wave through an array filter of rectangular apertures and then does not need to use any lens systems and coherent reference waves. Therefore, it provides a potentially useful means for coherent imaging in a wide class of wave fields such as optical, x ray, electron, and atomic waves.
<i>The Plant Cell</i>: 20 Years Young (2009)

Imagine a time when you actually had to go to a library to read journals and spend hours copying articles and/or mailing out reprint postcards to keep up-to-date with new scientific advances. Imagine a time when you submitted your latest research results for publication and you actually had to send
A versatile quantum-inspired evolutionary algorithm (2007)

This study points out some weaknesses of existing quantum-inspired evolutionary algorithms (QEA) and explains in particular how hitchhiking phenomena can slow down the discovery of optimal solutions and encourage premature convergence. A new algorithm, called versatile quantum- inspired evolutionary algorithm (vQEA), is proposed. With vQEA, the attractors moving the population through the search space are replaced at every generation without considering their fitness. The new algorithm is much more reactive. It always adapts the search toward the last promising solution found thus leading to a smoother and more efficient exploration. In this paper, vQEA is tested and compared to a classical genetic algorithm CGA and to a QEA on several benchmark problems. Experiments have shown that vQEA performs better than both CGA and QEA in terms of speed and accuracy. It is a highly scalable algorithm as well. Finally, the properties of the vQEA are discussed and compared to estimation of distribution algorithms (EDA).
On the low-pressure mode transition in electron cyclotron heated plasmas (1991)

The properties of plasmas created and sustained by electron cyclotron heating (ECH) have often been found to undergo an abrupt change as the ambient gas pressure is reduced below a value that is typically around 10−5–10−4 Torr. A model is presented in which ambipolar transport of particles and energy are balanced by electron impact ionization and microwave power absorption, respectively. In the absence of magnetic-mirror confinement of high energy electrons, the equilibria predicted by the model exist only for gas pressures greater than a value determined by the ionization rate constant, the average ion mass, and the axial length (along the steady magnetic field) of the discharge. At the critical pressure, the equilibria bifurcate into high-temperature/low-density and low-temperature/high-density branches. Magnetic-mirror confinement of high-energy electrons can lower the critical pressure and modify the bifurcation somewhat. In all cases the equilibrium electron temperature is governed primarily by gas pressure while the plasma density is proportional to the microwave power density absorbed by the plasma.
Mobilization of CD34-Positive Bone Marrow–Derived Cells After Coronary Stent Implantation (2007)

Stent implantation may induce differentiation of bone marrow cells into endothelial or smooth muscle cells. Endothelial cells may participate in reendothelialization, a protective reaction against vascular injury, whereas smooth muscle cells may participate in neointimal thickening and restenosis. Sirolimus-eluting stents appear to inhibit the mobilization and differentiation of bone marrow cells.
1.5 μm DFB semiconductor laser spectroscopy of HCN (1988)

Near-infrared DFB (distributed feedback) semiconductor lasers have been extensively applied to molecular spectroscopy for the first time. The overtone band of three isotopic species of HCN has been recorded from 6420 to 6590 cm−1 without any frequency gaps, and three hot bands of H12C14N have also been observed. The molecular constants of the observed bands and the dipole moment for the (0 00 2) state of H12C14N are obtained.
Molecular and supermolecular origins of enhanced electric conductivity in template-synthesized polyheterocyclic fibrils. 1. Supermolecular effects (1991)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMolecular and supermolecular origins of enhanced electric conductivity in template-synthesized polyheterocyclic fibrils. 1. Supermolecular effectsZhihua Cai, Junting Lei, Wenbin Liang, Vinod Menon, and Charles R. MartinCite this: Chem. Mater. 1991, 3, 5, 960–967Publication Date (Print):September 1, 1991Publication History Published online1 May 2002Published inissue 1 September 1991https://pubs.acs.org/doi/10.1021/cm00017a036https://doi.org/10.1021/cm00017a036research-articleACS PublicationsRequest reuse permissionsArticle Views781Altmetric-Citations179LEARN 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
Generation of Coherent Multicarrier Signals by Gain Switching of Discrete Mode Lasers (2011)

The authors demonstrate the generation of a highly coherent multicarrier signal that consists of eight clearly resolved 10.7-GHz coherent sidebands generated within 3 dB of the spectral envelope peak and with an extinction ratio in excess of 45 dB by gain switching a discrete mode (DM) laser. The generated spectral comb displays a corresponding picosecond pulse train at a repetition rate of 10.7 GHz with a pulse duration of 24 ps and a temporal jitter of ~450 fs. The optical spectra and associated pulses of the gain-switched DM laser are subsequently compared with a gain-switched distributed feedback (DFB) laser that generates a spectrum with no discernible sidebands and corresponding pulses with ~3 ps of temporal jitter. By means of external injection, the temporal jitter of the gain-switched DFB laser is then reduced to <; 1 ps, resulting in visible tones on the output spectrum. Finally, a nonlinear scheme is employed and initially tailored to compress the optical pulses, after which, the setup is slightly altered to expand the original frequency comb from the gain-switched DM laser.
Anaphylaxis due to Red Imported Fire Ant sting (2002)

The invasive Red Imported Fire Ant (Solenopsis invicta Buren) is well established at two locations in the Brisbane area, and we report a patient with anaphylaxis after a sting. The potential for anaphylactic events in Australia due to S. invicta will be greater than for native ants because of its unusual venom, its habit of forming supercolonies in grassy areas, and its aggressive group territorial defence, which can result in multiple stings.
Session aware network controlled interface selection for multihomed hosts (2004)

This paper proposes network-controlled architecture to enable multihomed devices-devices that have multiple network interfaces independently connected to different networks - to effectively use all the available interfaces. The salient features of our approach are that it is session aware, i.e. the choice of network interface is based on the network state and session characteristics. Furthermore, it does so without exposing a user's location and preferences to the correspondent nodes thereby preserving user privacy. Network control using a middle-box as opposed to an end-to-end mechanism ensures fast response, optimal network use, minimal changes to end hosts and support for legacy applications and provides a detailed instantiation in the context of a SIP based call model. This paper also discusses deployment issues and details of our implementation.
Alcohol Consumption during Adolescence and Risk of Diabetes in Young Adulthood (2014)

Heavy alcohol use during adolescence may increase the risk of diabetes in young adulthood. The Significant finding of the Study.
Predicting failures of computer systems: a case study for a telecommunication system (2006)

The goal of online failure prediction is to forecast imminent failures while the system is running. This paper compares similar events prediction (SEP) with two other well-known techniques for online failure prediction: a straightforward method that is based on a reliability model and dispersion frame technique (DFT). SEP is based on recognition of failure-prone patterns utilizing a semi-Markov chain in combination with clustering. We applied the approaches to real data of a commercial telecommunication system. Results are presented in terms of precision, recall, F-measure and accumulated runtime-cost. The results suggest a significantly improved forecasting performance.
Conformational analysis of the immunodominant epitopes of the circumsporozoite protein of <i>Plasmodium falciparum</i> and <i>knowlesi</i> (1990)

All of the coat proteins of the sporozoite and merozoite stages of Plasmodium, determined to date, contain tandem repeats and most of these contain at least one proline residue. These tandemly repeated segments of the circumsporozite (CS) proteins of P. falciparum and P. knowlesi have been shown to constitute an immunodominant epitope. Antibodies to these peptide segments have been shown to be protective and cause the shedding of the CS protein, known as the CSP reaction. In this study, four synthetic peptides were prepared by solid-phase peptide synthesis. The first peptide corresponds to the tetrapeptide tandem repeat in the CS protein of P. falciparum, repeated eight times, (NANP)8. The second peptide is an analogue of the first in which glycine is substituted for proline, (NANG)8. The third peptide corresponds to the tandem repeat of P. knowlesi, PK(1-24), which is repeated twice (QAQGDGANAGQP)2. The fourth peptide is a tetrapeptide repeat, corresponding to the C-terminal tetrapeptide of PK(1-24) and is repeated eight times, (AGQP)8. It is shown by CD measurements that the presence of proline in these repeats induces an increase in beta-sheet (beta-turn) content in the (NANP)8 peptide relative to the repeat of (NANG)8 and PK(1-24) peptide in aqueous media. The (AGQP)8 peptide has the highest beta-sheet (beta-turn) content of all peptides studied. The Chou-Fasman predictive algorithm indicates a high beta-turn content in the synthetic peptides. It is concluded that this increase in defined structure correlates well with and hence may contribute to the increased antigenicity in these repeats.
Faraday research article. Structure and composition of adsorbed protein layers and the relationship to emulsion stability (1992)

Factors affecting the stability of oil-in-water emulsions with respect to coalescence, creaming and flocculation are critically reviewed with emphasis on the role of adsorbed protein and free polysaccharide. Crucial differences in structure between adsorbed layers of a disordered protein (β-casein) and a globular protein are described with particular reference to recent results obtained by specular neutron reflectance. Based on parallel experiments in emulsions and at planar oil/water interfaces, information is now becoming available on the structure and composition of layers adsorbed from mixtures of proteins or mixtures of protein + surfactant. Some of the general features of competitive and cooperative adsorption in mixed systems containing protein can be described by a new lattice-based Monte Carlo computer simulation model. In this regard, the statistical description of how covalent linkage to polysaccharide affects the surface and emulsifying behaviour of protein is especially noteworthy.
Fluor‐organische Synthesen, I. Die Fluorolyse metallorganischer Bindungen durch Perchlorylfluorid (1969)

Abstract Metallorganyle von Alkyl‐, Cycloalkyl‐, Vinyl‐, Aryl‐, Benzyl‐ und Enolat‐Typ tauschen unter der Einwirkung von Perchlorylfluorid (FClO 3 ) das Metall gegen Fluor aus. Damit wird eine Reihe fluorierter Derivate, die z. T. auch vom biochemisch‐medizinischen Standpunkt aus Interesse verdienen, präparativ zugänglich.
Histologic changes in the hypoxic brain. (1984)

Two animal models were used for the morphologic study of hypoxic or ischemic cerebral injury. In the first model ("Levine preparation") rats were subjected to a unilateral carotid artery ligation, followed by intermittent exposure to pure nitrogen. Damage, which was examined 24 h after this bypoxic insult, was largely restricted to the ipsilateral cerebral cortex. In the second model ("Pulsinelli preparation") severe bilateral transient ischemia was induced by permanent occlusion of both vertebral arteries, followed by temporary ligation of both carotid arteries. Damage was examined after short recirculation times and after a 3-day survival period. Injury was largely confined to the CA1 layer of the hippocampus. In both experimental models two types of cell change were prominent: coagulative cell change which was restricted to neurons, and edematous cell change which was largely confined to astrocytes. Studies on cerebral microcirculation revealed a close relationship between areas of reduced flow and areas with structural damage. Cytochemical demonstration of subcellular calcium indicated an early and important redistribution of this cation, indicative for toxic calcium overload in the cytosol. Data on therapeutic intervention with Ca2+-overload blocker flunarizine are included.
Clinical impact of bleeding in patients taking oral anticoagulant therapy for venous thromboembolism: a meta-analysis. (2003)

The clinical impact of anticoagulant-related major bleeding in patients with venous thromboembolism is considerable, and clinicians should take this into account when deciding whether to continue long-term oral anticoagulant therapy in an individual patient.
Overdiagnosis in Cancer (2010)

This article summarizes the phenomenon of cancer overdiagnosis-the diagnosis of a "cancer" that would otherwise not go on to cause symptoms or death. We describe the two prerequisites for cancer overdiagnosis to occur: the existence of a silent disease reservoir and activities leading to its detection (particularly cancer screening). We estimated the magnitude of overdiagnosis from randomized trials: about 25% of mammographically detected breast cancers, 50% of chest x-ray and/or sputum-detected lung cancers, and 60% of prostate-specific antigen-detected prostate cancers. We also review data from observational studies and population-based cancer statistics suggesting overdiagnosis in computed tomography-detected lung cancer, neuroblastoma, thyroid cancer, melanoma, and kidney cancer. To address the problem, patients must be adequately informed of the nature and the magnitude of the trade-off involved with early cancer detection. Equally important, researchers need to work to develop better estimates of the magnitude of overdiagnosis and develop clinical strategies to help minimize it.