gebhart/patrepeval huggingface dataset:
Input-output theory for spin-photon coupling in Si double quantum dots (2017)

The interaction of qubits via microwave frequency photons enables long-distance qubit-qubit coupling and facilitates the realization of a large-scale quantum processor. However, qubits based on electron spins in semiconductor quantum dots have proven challenging to couple to microwave photons. In this theoretical work we show that a sizable coupling for a single electron spin is possible via spin-charge hybridization using a magnetic field gradient in a silicon double quantum dot. Based on parameters already shown in recent experiments, we predict optimal working points to achieve a coherent spin-photon coupling, an essential ingredient for the generation of long-range entanglement. Furthermore, we employ input-output theory to identify observable signatures of spin-photon coupling in the cavity output field, which may provide guidance to the experimental search for strong coupling in such spin-photon systems and opens the way to cavity-based readout of the spin qubit.
Terahertz-frequency remote-sensing of biological warfare agents (2003)

This paper presents a detailed assessment of terahertz-frequency spectroscopy as a technique for the remote detection of biological warfare agents. Design studies are presented for a differential-absorption-radar (DAR) approach that utilizes the spectral signatures of Bacillus (B.) subtillus spores within the terahertz (THz) regime as the detection mechanism. The signature data used in these studies is taken from laboratory measurements performed on uniform thin films of B. Subtillus spores and the system performance is assessed for both incoherent and coherent detector modalities. These studies consider DAR remote sensing of biological (bin) clouds at significant ranges (i.e., 1 km) and include the effects of realistic atmospheric conditions. A high-level remote-sensor design is used to estimate the probabilities of detection (p/sub d/) and false-alarm (p/sub fa/) associated with this general technique. These studies suggest useful remote-detection performance can be achieved (i.e., p/sub d/ > 0.9 & p/sub ra/ 10/sup -4/ for bio-cloud densities <10/sup 3/ cm/sup -3/) at 1 km ranges if the THz signature information remains predictably stable under varying atmospheric conditions (e.g., changes in humidity, spore activity state, etc). Furthermore, a realistic bio-agent airframe attack scenario is utilized to demonstrate standoff detection of bio-clouds with /spl sim/100% confidence while outside the threat-level concentrations. All together, these results demonstrate that standoff detection of bio-agents is feasible for threat-level concentrations in practical battlefield environments at sufficient ranges to provide for early warning.
A Resonant Gate-Drive Circuit With Optically Isolated Control Signal and Power Supply for Fast-Switching and High-Voltage Power Semiconductor Devices (2013)

This paper deals with a resonant gate-drive circuit for fast-switching and high-voltage power semiconductor devices, which is equipped with optical fibers for both gate control signal and dc power supply. A resonant inductor connected with the gate terminal makes it possible to charge or discharge the gate-to-source voltage by using the parallel resonance between the inductor and the input capacitance of the device. The optical fibers can be used to deliver the driving power to the gate-drive circuit, because the circuit theoretically causes no power consumption for driving the power device. Moreover, the proposed circuit makes it possible to suppress fluctuations in the gate voltage caused by a rapid change in the drain-to-source voltage. Experimental results are shown to verify the viability of the proposed circuit.
Autologous Corticocancellous Bone Paste for Long Bone Discontinuity Defects: An Experimental Approach (1985)

A number of materials have been used in treating long bone discontinuity defects, some with rewarding results and some without. These materials vary from autologous, allogenic, and xenogenic grafts, to bone implants. Other inorganic implants, such as plaster of Paris and gold, have been used, most inducing a strong inflammatory reaction. In this experiment, a paste of autologous corticocancellous bone particles was used to reconstitute discontinuity defects in long bones. The defects were healed to a solidified state within six months. This finding confirms our previous work; in membranous bone discontinuity defects, autologous corticocancellous bone gave best overall results either when used alone or with a template carrier for contouring purposes.
Experimental study of the relationships between the near-normal reflectance, the optical constants, and the roughness of thin silver films (1990)

Independent measurements of the rms roughness and the reflectance have been made on silver films deposited on CaF2, LiF, and MgF2 thin films of various degrees of roughness. These measurements show a linear relationship between the dip in the magnitude of the near-normal reflectance minimum at the plasma energy and the rms roughness δ of the various samples. The autocovariance length of the rough surface turns out to have little influence on the relationship between the magnitude of the reflectance and δ. The relationships between the optical constants of silver films and δ are also investigated.
IL-33 Shifts Macrophage Polarization, Promoting Resistance against<i>Pseudomonas aeruginosa</i>Keratitis (2010)

To determine the role of IL-33 in resistance to Pseudomonas aeruginosa keratitis. METHODS. Corneal IL-33 mRNA and protein levels were tested in susceptible C57BL/6 (B6) and resistant BALB/c mice. B6 mice were injected with recombinant mouse IL-33 (rmIL-33) and disease severity, bacterial load, polymorphonuclear neutrophils (PMN) infiltrate, gene expression of inflammatory, and T-helper (Th)1/Th2 cytokines were tested by RT-PCR. IL-33 signaling and macrophage (M) polarization also were examined. RESULTS. IL-33 mRNA and protein were expressed constitutively in the normal corneas of both groups and were significantly elevated at 1 to 5 days after infection in BALB/c over B6 mice. rmIL-33-treated B6 mice showed less severe disease than did PBS controls and exhibited decreased bacterial load, PMN infiltrate, and corneal mRNA levels for IL-1, MIP-2, and TNF-. Th2-type cytokines (IL-4, -5, -10) also were significantly upregulated, and protein levels for TNF- and IL-10 confirmed the mRNA data. To further investigate IL-33 in corneal inflammation, it was overexpressed in M (RAW264.7 cells). This significantly increased IL-5 and IL-10, while it decreased IFN- and other pro-inflammatory cytokines. The role of the M was further tested in infected rmIL-33 compared with PBS-injected mice. Immunostaining showed that rmIL-33 injection shifted M polarization from NO synthase 2 to arginase production. Furthermore, peritoneally elicited cells (B6 mice) treated with lipopolysaccharide and rmIL-33 exhibited elevated ST2 levels and a shift from IL-12 to IL-10 mRNA production. CONCLUSIONS. These data provide evidence that IL-33 promotes a Th2-type immune response and reduces inflammation by polarizing the M production of anti-inflammatory mediators in the cornea.
T-Regulatory Cells Shift from a Protective Anti-Inflammatory to a Cancer-Promoting Proinflammatory Phenotype in Polyposis (2009)

T-regulatory (Treg) cells play a major role in cancer by suppressing protective antitumor immune responses. A series of observations (from a single laboratory) suggest that Treg cells are protective in cancer by virtue of their ability to control cancer-associated inflammation in an interleukin (IL)-10-dependent manner. Here, we report that the ability of Treg cells to produce IL-10 and control inflammation is lost in the course of progressive disease in a mouse model of hereditary colon cancer. Treg cells that expand in adenomatous polyps no longer produce IL-10 and instead switch to production of IL-17. Aberrant Treg cells from polyp-ridden mice promote rather than suppress focal mastocytosis, a critical tumor-promoting inflammatory response. The cells, however, maintain other Treg characteristics, including their inability to produce IL-2 and ability to suppress proliferation of stimulated CD4 T cells. By promoting inflammation and suppressing T-helper functions, these cells act as a double-edged knife propagating tumor growth.
Attitude control — II (1958)

CONTROLLING THE ATTITUDE of a satellite vehicle should be a simple job. The body behaves as if it were suspended on a frictionless pivot. Control torques can be small. There usually is no need for extreme precision in measurement. And adequate response times are ridiculously low by conventional servo standards.
The RON2-AMA1 Interaction is a Critical Step in Moving Junction-Dependent Invasion by Apicomplexan Parasites (2011)

Obligate intracellular Apicomplexa parasites share a unique invasion mechanism involving a tight interaction between the host cell and the parasite surfaces called the moving junction (MJ). The MJ, which is the anchoring structure for the invasion process, is formed by secretion of a macromolecular complex (RON2/4/5/8), derived from secretory organelles called rhoptries, into the host cell membrane. AMA1, a protein secreted from micronemes and associated with the parasite surface during invasion, has been shown in vitro to bind the MJ complex through a direct association with RON2. Here we show that RON2 is inserted as an integral membrane protein in the host cell and, using several interaction assays with native or recombinant proteins, we define the region that binds AMA1. Our studies were performed both in Toxoplasma gondii and Plasmodium falciparum and although AMA1 and RON2 proteins have diverged between Apicomplexa species, we show an intra-species conservation of their interaction. More importantly, invasion inhibition assays using recombinant proteins demonstrate that the RON2-AMA1 interaction is crucial for both T. gondii and P. falciparum entry into their host cells. This work provides the first evidence that AMA1 uses the rhoptry neck protein RON2 as a receptor to promote invasion by Apicomplexa parasites.
The Dirichlet Model: Analysis of a Market and Comparison of Estimation Procedures. (2011)

This paper examines the Dirichlet model describing consumer behaviour. The model estimates brand performance measures in the case of repeat purchases over a set of brands. The Dirichlet model relies on some assumptions such as stationarity and the fact that the market is unsegmented. Its formulation derives from a combination of the Negative Binomial and the Dirichlet distributions. Various estimation methods have been proposed. The original one is an iterative procedure based on the method of moments and requires as inputs only aggregated quantities, such as brand penetrations and average purchase rates. There is also an estimation method based on likelihood maximization which requires raw individual or household panel data. The method of moments deserves attention, since raw panel data are frequently not available to researchers and/or enterprises. In this paper, the Dirichlet model is used to analyze the Italian beer market as a by-product of the main objective, which is to compare two estimation procedures available on-line for the method of moments: one based on an Excel Workbook and the other written in R. Neither procedures are very robust in the presence of atypical brands in the market.
Inhibitory effects of apigenin on the growth of gastric carcinoma SGC-7901 cells (2005)

Apigenin shows obvious inhibition on the growth and clone formation of SGC-7901 cells by inducing apoptosis.
Service provision to land mobile radio units in northern latitudes by a satellite in a non-geostationary orbit-propagation studies (1989)

To date, systems design engineers have been hindered by a lack of information about the nature of the radio channel offered to a mobile unit at L-band by a highly inclined orbit (HIO) satellite. A research project was initiated by the radiocommunications division of the Department of Trade and Industry (DTI) and placed with the University of Bradford as a means of obtaining the required data. The fundamental aims of the project were to provide a quantitative knowledge of channel parameters needed when developing land mobile satellite communications systems, and to use this data to compare and contrast aspects of the channel offered by satellites in highly inclined as opposed to geostationary orbits. >
Automated local maximum‐intensity projection with three‐dimensional vessel tracking (1992)

Despite the simplicity and widespread acceptance of the maximum-intensity-projection (MIP) technique for displaying three-dimensional (3D) magnetic resonance angiographic data, several disadvantages are associated with MIP as it is applied to all of the 3D data. These include elevated noise level, reduced contrast between small vessels and background tissue, and the inability to distinguish arteries from veins. The authors have developed a 3D vessel tracking method combined with a local MIP around a given vessel to complement conventional MIP and alleviate these problems. The method is referred to as a traveling MIP (TMIP). TMIP was evaluated in both patients and healthy volunteers. The results indicate that TMIP provides better contrast between vessels and background tissue, better lumen definition, and better vascular visualization than either MIP or vessel tracking alone.
A carbon monoxide gas sensor using oxygen plasma modified carbon nanotubes (2012)

Carbon monoxide (CO) is a highly toxic gas that can be commonly found in many places. However, it is not easily detected by human olfaction due to its colorless and odorless nature. Therefore, highly sensitive sensors need to be developed for this purpose. Carbon nanotubes (CNTs) have an immense potential in gas sensing. However, CNT-based gas sensors for sensing CO are seldom reported due to the lack of reactivity between CO and CNTs. In this work, O(2) plasma modified CNT was used to fabricate a CNT gas sensor. The plasma treated CNTs showed selectively towards CO, with the capability of sensing low concentrations of CO (5 ppm) at room temperature, while the pristine CNTs showed no response. UV spectra and oxygen reduction reaction provided evidence that the difference in sensing property was due to the elimination of metallic CNTs and enhancement of the oxygen reduction property.
Molecular Design and Optimization of <sup>99m</sup>Tc-Labeled Recombinant Affibody Molecules Improves Their Biodistribution and Imaging Properties (2011)

These results demonstrate that the biodistribution properties of recombinant (99m)Tc-labeled Affibody molecules can be optimized by modification of the C-terminal cysteine-containing chelating sequence. (99m)Tc-Z(HER2)(:V2) is a promising candidate for further development as a diagnostic radiopharmaceutical for imaging of HER2-expressing tumors. These results may be useful for the development of imaging agents based on other Affibody molecules and, hopefully, other scaffolds.
Brine-Soluble Zwitterionic Copolymers with Tunable Adsorption on Rocks (2020)

Injection of aqueous fluids into reservoirs as an enhanced oil recovery (EOR) tool has been of great interest in petroleum engineering. EOR using viscous polymer solutions improves the volumetric sweep efficiency. However, significant polymer adsorption on reservoir rock surfaces is one of the greatest challenges in polymer-flooding EOR. We have synthesized and characterized five zwitterionic copolymers and studied their static adsorption on limestone surfaces in seawater at high temperatures and salinities. Our results indicate that polymer adsorption directly correlates to a small percentage of functional co-monomers on the polymer backbone. One particular copolymer shows negligible static adsorption on limestone surfaces.
Amino-acids and peptides. Part XII. The molecular structures of the monamycins, cyclodepsipeptide antibiotics (1971)

The molecular structure of the monamycins D1(XXII) and H1(XXIX), major constituents of a mixture of fifteen related cyclohexadepsipeptides, have been determined through partial hydrolysis to di- and tri-peptides and by mass spectral studies of the methyl esters of the corresponding linear hexadepsipeptide derivatives. The related structures of the minor components were elucidated through mass spectrometry.
Increases in estrogen receptor‐α concentration in breast cancer cells promote serine 118/104/106‐independent AF‐1 transactivation and growth in the absence of estrogen (2004)

A common phenotype in breast cancer is the expansion of the estrogen receptor-alpha (ER+) cell population and an inappropriate elevation of ERalpha protein, the latter predisposing patients for a poorer prognosis than those with lower levels of the receptor. A tetracycline-inducible ERalpha overexpression model was developed in the MCF-7 cell line to assess induction of endogenous gene activation and growth in response to elevations in ERalpha protein. Heightened levels of ERalpha resulted in aberrant promoter occupancy and gene activation in the absence of hormone, which was independent of ligand and AF-2 function. This increased receptor activity required the amino-terminal A/B domain and was not inhibited by tamoxifen, which supports an enhancement of AF-1 function, yet was independent of serine-104, 106, and 118 phosphorylation. Ligand-independent transcription was accompanied by an increase in growth in the absence of hormonal stimulation. The results suggest that elevated levels of ERalpha in breast cancer cells can result in activation of receptor transcriptional function in a manner distinct from classical mechanisms that involve ligand binding or growth factor-induced phosphorylation. Further, they describe a potential mechanism whereby increases in ERalpha concentration may provide a proliferative advantage by augmenting ERalpha function regardless of ligand status.
Design Problems on Vibratory Micro-Gyroscopes (1998)

Recently, some types of micromachined gyroscopes (angular rate sensor) have been reported. Micromachined gyroscopes are suitable for familiar products such as a VTR, auto mobile and toy, where cost effective and mass production are required. However, it seems that many of problems and difficulties for designing the micro gyroscopes still remain. This study deals with such design problems on micromachined gyroscopes. The paper includes discussions about the analysis of the mass movement according to applied angular rate, optimum design respect to product of the sensitivity and response frequency, some problems in peripheral circuitry, acceleration sensitivity, a method to drive a mass, and a problems on the temperature dependence.
Determination of polycyclic aromatic hydrocarbons in atmospheric particulate matter by high pressure liquid chromatography coupled with fluorescence techniques (1976)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDetermination of polycyclic aromatic hydrocarbons in atmospheric particulate matter by high pressure liquid chromatography coupled with fluorescence techniquesMarye Anne. Fox and Stuart W. StaleyCite this: Anal. Chem. 1976, 48, 7, 992–998Publication Date (Print):June 1, 1976Publication History Published online1 May 2002Published inissue 1 June 1976https://pubs.acs.org/doi/10.1021/ac60371a002https://doi.org/10.1021/ac60371a002research-articleACS PublicationsRequest reuse permissionsArticle Views335Altmetric-Citations77LEARN 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
[Direct restoration with composite resin III. Selection and application of composite resins]. (2008)

按照材料组成及其聚合机制,直接粘接修复的主要材料包括复合树脂和玻璃离子水门汀两大类.取两类材料各自的优点,又出现了将其复合研制的复合体(compomer)、玻璃复合体(giomer)和光固化玻璃离子水门汀(light-cured glassionomer cements).复合树脂是目前临床应用最广的一类材料,具有和天然牙相似的色泽,并随着物理机械性能得以不断提高,已成为临床直接粘接修复的首要选择.大量临床实践证明,只要合理选择并使用得当,复合树脂可以获得令人满意的临床效果。
Giant tumour-like pericarditis on CT and echocardiography (2020)

"Giant tumour-like pericarditis on CT and echocardiography." Acta Cardiologica, 76(10), pp. 1137–1138
Estimation of Lithium-Ion Concentrations in Both Electrodes of a Lithium-Ion Battery Cell (2015)

For control and estimation tasks in battery management systems, the benchmark Li-ion cell electrochemical pseudo-two-dimensional (P2D) model is often reduced to the Single Particle Model (SPM). The original SPM consists of two electrodes approximated as spherical particles with spatially distributed Li-ion concentration. However, the Li-ion concentration states in these two-electrode models are known to be weakly observable from the voltage output. This has led to the prevalent use of reduced models in literature that generally approximate Li-ion concentration states in one electrode as an algebraic function of that in the other electrode. In this paper, we remove such approximations and show that the addition of the thermal model to the electrochemical SPM essentially leads to observability of the Li-ion concentration states in both electrodes from voltage and temperature measurements. Then, we propose an estimation scheme based on this SPM coupled with lumped thermal dynamics that estimates the Li-ion concentrations in both electrodes. Moreover, these Li-ion concentration estimates also enable the estimation of the cell capacity. The estimation scheme consists of a sliding mode observer cascaded with an Unscented Kalman filter (UKF). Simulation studies are included to show the effectiveness of the proposed scheme.
Possible role of prostaglandins in the regulation of mouse myoblasts (1989)

A differentiation-defective mouse myoblast subclone (DD-1), cells of which do not fuse into myotubes nor synthesize muscle-specific proteins, was employed to help define the role of eicosanoids in mouse myoblast differentiation. We observed by hplc, tlc, and radioimmunoassay that the DD-1 cells release strikingly higher levels of cyclooxygenase pathway products prostaglandin E2 and F2 alpha into the culture medium than the parental non-differentiation-defective cells (DZ). In contrast, the levels of 15-hydroxyeicosatetraenoic acid (15-HETE), a lipoxygenase product, and a putatively identified second lipoxygenase product (LLP) did not differ greatly in the two cell types. The DD-1 cells also have strikingly higher levels of cyclooxygenase activity than the parental cells as determined by intact and broken cell assays. Additional fusion-defective clones were isolated on the basis of their flattened appearance and ability to grow in "mitogen-poor" medium and these cells also released strikingly higher levels of prostaglandins E2 and F2 alpha into the growth medium. The "turn on" of the cyclooxygenase pathway in the DD-1 cells and other fusion-defective cells is consistent with the hypothesis that the products of this pathway contribute to the inability of myoblasts to fuse with one another. This hypothesis is supported by the observation that there is a dose-dependent decrease in fusion of DZ cells when PGE2 is added to commitment medium.