gebhart/patrepeval huggingface dataset:
Improved results with single-stage total correction of Taussig–Bing anomaly☆ (2007)

The Taussig-Bing anomaly is complex and often associated with other cardiac anomalies (arch obstruction, RVOTO, unusual coronary pattern). Advances in perioperative care have significantly mitigated mortality. In our experience with single-stage total repair, event-free survival, especially freedom from RVOT re-operation, has significantly improved.
Acrylonitrile Copolymers Using Cobalt Acetylacetonate Triethylaluminum Initiator System. IV. Copolymerization with Styrene (1983)

Abstract The copolymerization of acrylonitrile with styrene was studied using homogeneous Ziegler-Natta initiator containing cobalt acetylacetonate and triethylaluminum in benzene at 50°C. The overall rate of polymerization shows an interesting dependence on triethylaluminum, monomer, and initiator concentrations. The overall activation energy for the polymerization was found to be 10 kcal/mol. The polymerization was susceptible to inhibition by added hydroquinone. These observations are explained based on a mechanism wherein acrylonitrile competes for complexation with both the catalyst sites and the Lewis acid. The catalyst sites appear to possess both coordinate anionic and free radical characteristics.
Direct Electron Transfer from the FAD Cofactor of Cellobiose Dehydrogenase to Electrodes (2015)

Cellobiose dehydrogenase (CDH) is employed in the construction of biosensors and biofuel cells. The flavin adenine dinucleotide (FAD) containing, catalytic dehydrogenase domain (DH) of the enzyme oxidizes carbohydrates, while the cytochrome b containing domain (CYT) acts as an electron mediator and shuttles the electrons to the electrode. Here we demonstrate for the first time in an unequivocal manner direct electron transfer (DET) between the FAD and electrodes by showing clear nonturnover voltammetric waves in the absence and turnover waves in the presence of substrate by using cyclic voltammetry and square wave voltammetry. Results were obtained by entrapping CDH under a dialysis membrane on alkanethiol-modified, polycrystalline gold electrodes. DET from the FAD cofactor occurs at potentials 130 mV more negative than those previously reported and established DET from the electron-mediating CYT domain. However, direct electrochemistry was only observed for two types of basidiomycete class I CDHs from Trametes villosa and Phanerochaete sordida at pH values below 5 and not for ascomycete class II CDHs investigated under the same experimental conditions. The present findings are of high interest for the development of biosensors and biofuel cells featuring a lower substrate oxidation potential, which decreases the occurrence of interfering reactions and increases the cell voltage in biofuel cells. Furthermore, these findings may also be transferrable to structurally related enzymes such as glucose oxidase and glucose dehydrogenase.
High-Efficiency Bifacial Dye-Sensitized Solar Cells for Application under Indoor Light Conditions (2019)

High-efficiency, stable bifacial dye-sensitized solar cells (DSSCs) are prepared for application under indoor light conditions. A 3-methoxypropionitrile solvent and cobalt redox couples are utilized to prepare the electrolytes. To obtain the best cell performance, the components of the DSSCs, including electrolytes, photoanodes, and counter electrodes (CEs), are regulated. The experimental results indicate that an electrolyte comprising a Co (II/III) ratio of 0.11/0.025 M, 1.2 M 4-<i>tert</i>-butylpyridine, Y123 dye, a CE with the platinum (Pt) layer thickness of 0.16 nm, and a photoanode with titanium dioxide (TiO<sub>2</sub>) layer thickness of 10 μm (6 μm main layer and 4 μm scattering layer) are the best conditions under which to achieve a high power conversion efficiency. It is also found that the best cells have high recombination resistance at the photoelectrode/electrolyte interface and low charge transfer resistance at the counter electrode/electrolyte interface, which contributes to, respectively, the high current density and open-circuit voltage of the corresponding cells. This DSSC can achieve efficiencies of 22.66%, 23.48%, and 24.52%, respectively, under T5 light illumination of 201.8, 607.8, and 999.6 lx. For fabrication of bifacial DSSCs with a semitransparent property, photoanodes without the TiO<sub>2</sub> scattering layer, as well as an ultrathin Pt film, are utilized. The thicknesses of the TiO<sub>2</sub> main layer and Pt film are reregulated. This shows that a Pt film with 0.55 nm thickness has both high transmittance (76.01%) and catalytic activity. By using an 8 μm TiO<sub>2</sub> main layer, optimal cell efficiencies of 20.65% and 17.31% can be achieved, respectively, for the front-side and back-side illuminations of 200 lx T5 light. The cells are highly stable during a long-term performance test at both 35 and 50 °C.
The Sintering Residual Stress of WC-Ni Cemented Carbide Alloy (2005)

Cemented carbide alloy is widely used for high strength and hardness. The tips of cemented carbide alloy are sintered from the WC powder and often brazed on the wide sliding surface. Although welding is better than brazing, the welding crack occurs sometimes because the cemented carbide alloy has low contents of the bonding metal. Functionally gradient composite material will be expected to improve the weldability. One of the factors of the crack is the residual stress existed in the material. This paper describes an X-ray measurement method of both residual stress in WC and Ni phase of the cemented carbide alloy. Six kinds of specimen with bonding material Ni from 10% to 60% weight contents were made by spark plasma sintering (SPS) system. The stresses of the specimen were measured by X-ray diffractometer. As a result, the average residual stress between WC and Ni phase was approximately 500 MPa in compression, while the stress was released considerably after annealing.
Simultaneous-Perturbation-Stochastic-Approximation Algorithm for Parachute Parameter Estimation (2005)

This paper presents an algorithm to estimate unknown parameters of parachute models from flight-test data. The algorithm is based on the simultaneous-perturbation-stochastic-approximation method to minimize the prediction error (difference between model output and test data). The algorithm is simple to code and requires only the model output. Analytical gradients are not necessary. The algorithm is used to estimate aerodynamic and apparent mass coefficients for an existing parachute model. Nomenclature A = apparent mass tensor B, C, D = points on parachute Cd = drag coefficient Cm = moment coefficient cref = reference length e0, e1, e2, e3 = quaternions Fx, Fy, Fz = force along x, y, and z directions H = cost function Ixx, Iyy, Izz = moment of inertia about x, y, and z axes Mx, My, Mz = moment about x, y, and z axes m = mass p = roll rate q = pitch rate r = yaw rate Sref = reference area U = velocity along X direction u, v, w = velocity along the x, y, and z axes V = velocity, velocity along Y direction X, Y, Z = inertial coordinates x, y, z = body coordinates α = angle of attack αT = total angle of attack β = angle of sideslip θ = pitch angle ϑ = unknown parameters ρ = density of air φ = roll angle ψ = yaw angle (model) evaluations at each iteration. Hence, execution time per iteration does not increase with the number of parameters. The method can handle nonlinear dynamic models, nonequilibrium transient test conditions, and data obtained in closed loop. For this reason, this method is suitable for the estimation of parameters in guided parachute models. The present paper has three main sections. The first section describes the model whose parameters are to be determined. The model is for a G-12 parachute, and it was developed at the Naval Postgraduate School (NPS). 3,4 The second section explains the basic parameter estimation approach. This section includes a simple description of the SPSA algorithm. In the third section we give the numerical results corresponding to the determination of three aerodynamic coefficients, four apparent mass coefficients, and the initial states for the G-12 parachute model. Conclusions and recommendations for further work are the end of the paper.
Toward routine measurement and calculation of spectrally corrected DNI for CPV systems (2019)

In this work, we demonstrate the capabilities of the SolarSIM-D2 in deriving the spectrally corrected DNI for a hypothetical concentrating photovoltaic (CPV) mono-module consisting of Azur Space’s 3C42 triple-junction solar cell with a silicone on glass Fresnel lens. The annual spectrally corrected and measured DNI sums in Ottawa, Canada were 1114.7 kWh/m2 and 1145.6 kWh/m2, respectively, representing a difference of 2.8% - which is significant in the context of developing a CPV powerplant.
Graphene as a p-type metal for ultimate miniaturization (2015)

We report macroscopic sheets of highly conductive bilayer graphene with exceptionally high hole concentrations of ~ $10^{15}$ $cm^{-2}$ and unprecedented sheet resistances of 20-25 Ω per square over macroscopic scales, and obtained in-situ over a thin cushion of molecular oxygen on a silicon substrate. The electric and electronic properties of this specific configuration remain stable upon thermal anneals and months of exposure to air. We further report a complementary ab-initio study, predicting an enhancement of graphene adhesion energy of up to a factor 20, also supported by experimental fracture tests. Our results show that the remarkable properties of graphene can be realized in a reliable fashion using a high-throughput process. In addition to providing exceptional material properties, the growth process we employed is scalable to large areas so that the outstanding conduction properties of graphene can be harnessed in devices fabricated via conventional semiconductor manufacturing processes. We anticipate that the approach will provide the necessary scalability and reliability for future developments in the graphene nanoscience and technology fields, especially in areas where further miniaturization is hampered by size effects and electrical reliability of classical conductors.
Cellular Deformations in Microintegrated Electrospun Poly (Ester Urethane) Urea Scaffolds Under Biaxial Stretch (2007)

Recently, vascular smooth muscle cells (SMCs) have been electrosprayed concurrently with electrospun biodegradable elastomeric poly (ester urethane) urea (PEUU) to form cell-microintegrated scaffolds [1]. These scaffolds exhibit soft tissue-like elastomeric mechanical properties [2], and are thus promising candidates for repair or replacement of diseased cardiovascular tissues. The level of cellular deformation during in vitro mechanical training will likely influence the extracellular matrix formation. However, these deformations are likely complex and dependent upon both scaffold properties and the cellular interactions with the local fibers. Our objective is to quantify microintegrated cellular deformations in response to biaxial scaffold stretches, using the nuclear aspect ratio (NAR) as an index of overall cellular deformation.
High Precision Measurement Of Phosphorus In Thin Glass Films Using X-Ray Fluorescence (1990)

Use of sapphire substrates instead of silicon for measurement of phosphorus in BPSGs and PSGs can improve the precision of the phosphorus measurement from 3&sigma; = 0.32 wt.% to 3o = 0.05 wt.%. Improvement in precision results from elimination of the background silicon counts, elimination of film thickness as a factor in phosphorus calculations, use of peak intensity ratios rather than absolute intensities, and elimination of wafer reloading effects.
Supplementary Figure 4 from TLR2 Agonist PSK Activates Human NK Cells and Enhances the Antitumor Effect of HER2-Targeted Monoclonal Antibody Therapy (2023)

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Diminished In Vitro Production of Interleukin-1 and Tumor Necrosis Factor-α during Acute Visceral Leishmaniasis and Recovery after Therapy (1992)

Disturbance of T cell-mediated immunity has been reported in acute visceral leishmaniasis (AVL). In a study of 16 patients with AVL, defective production of interleukin-1 (IL-1) by peripheral blood mononuclear cells was demonstrated in response to leishmania antigens, heat-killed Listeria organisms, and lipopolysaccharide when compared to posttherapy values or controls. This global defect in IL-1 production was corrected after successful therapy. Twelve of 16 patients responded with a greater than or equal to 2.5-fold increase in IL-1 production that correlated with clinical cure, P less than .01. Depressed production of tumor necrosis factor (TNF) was leishmania antigen-specific and similarly recovered after therapy. In vitro TNF production during the follow-up period did not correlate with clinical status but high serum levels were associated with AVL. Since T cells are activated by processed antigens presented on class II major histocompatibility molecules and by newly synthesized IL-1, defective IL-1 production may contribute to the immunosuppression observed in AVL.
Fluorescence incoherent color holography (2007)

We present a new imaging method to record multicolor digital holograms from objects emitting fluorescent light. The fluorescent light specific to the emission wavelength of various fluorescent dyes after excitation of three dimensional (3D) objects is recorded on a digital monochrome camera after reflection from a diffractive optical element (DOE). For each wavelength of fluorescent emission, the camera sequentially records three holograms reflected from the DOE, each with a different phase factor of the DOE's function. The three holograms are superposed in a computer to create a complex valued Fresnel hologram of each fluorescent emission. The holograms for each fluorescent color are further combined in a computer to produce a multicolored fluorescence hologram and 3D color image.
IL-12 and IL-18 induce MAP kinase-dependent adhesion of T cells to extracellular matrix components (2002)

Cytokines and chemokines play an essential role in recruiting leukocytes from the circulation to the peripheral sites of inflammation by modulating cellular interactions with endothelial cell ligands and extracellular matrix (ECM). Herein, we examined regulation of T cell adhesion to ECM ligands by two major proinflammatory cytokines, interleukin (IL)-12 and IL-18. IL-12 and IL-18 induced T cell adhesion to fibronectin (FN) and hyaluronic acid at low (pM) concentrations that were mediated by specific adhesion molecules expressed on the T cell surface, namely, beta(1) integrins and CD44, respectively. The induction of adhesion by IL-12 and IL-18 was inhibited by extracellular signal-regulated kinase and p38 mitogen-activated protein kinase inhibitors (PD098059 and SB203580, respectively). In contrast, IL-12- and IL-18-induced interferon-gamma (INF-gamma) secretion from T cells was inhibited by SB203580, but not by PD098059. It is interesting that low concentrations of IL-12 and IL-18 induced T cell adhesion to FN in a synergistic manner. Thus, in addition to the regulation of late inflammatory functions such as INF-gamma production, IL-12 and IL-18, alone or in combination, regulate early inflammatory events such as T cell adhesion to inflamed sites.
XAS and XES Techniques Shed Light on the Dark Side of Ziegler–Natta Catalysts: Active‐Site Generation (2015)

Abstract The local structure and the electronic properties of the active Ti sites in heterogeneous Ziegler–Natta catalysts, generated in situ by interaction of the precatalyst with different Al‐alkyl activators, were investigated by combining X‐ray absorption and valence‐to‐core X‐ray emission spectroscopy (XAS and vtc‐XES), coupled with UV/Vis, FTIR, and DFT theoretical calculations. Irrespective of the activator used, the active system was found to be a highly dispersed TiCl 3 ‐like phase in which the Ti sites are surrounded, not only by bridged chlorine ligands (with the same bond length of bulk TiCl 3 ), but also by terminal chlorine ligands, at a much shorter distance. These results set Ziegler–Natta catalysts in the category of complex nanomaterials. Despite the observation that the investigated catalysts polymerize ethylene, cutting‐edge XAS and XES techniques do not yet offer unequivocal proof for the presence of any alkyl chain attached to the Ti sites, as a consequence of the small fraction of the active sites.
Laser ablation sample transfer for localized LC‐MS/MS proteomic analysis of tissue (2016)

Imaging mass spectrometry (IMS) has shown great potential as a tool to increase proteomic information obtained from tissue sections in a spatially resolved manner. One of the bottlenecks of the technology is rapid protein identification. Extraction of spatially localized regions of interest from tissue samples followed by protein analysis by LC-MS/MS is a strategy that has shown potential in this regard. Further, analyzing tissue extracts has the advantage of providing identification of a large number of proteins. In this Special Feature article, Kermit Murray and colleagues demonstrate the potential of IR laser ablation sample transfer (IR LAST) for extraction of biological material from tissue sections mounted on a microscope slide by irradiation in transmission geometry for capture in a solvent located below the area of interest. They provide a comparison with UV laser capture microdissection and demonstrate that the captured material can be further processed for high throughput LC-MS/MS proteomic analysis. Kermit Murray is professor of Chemistry at Louisiana State University (Baton Rouge, LA). His research is primarily aimed at MS instrument development.
An Object-Pose Estimation Acceleration Technique for Picking Robot Applications by Using Graph-Reusing k-NN Search (2019)

An object-pose estimation acceleration technique for picking robot applications by using hierarchical-graph-reusing k-nearest-neighbor search (k-NN) has been developed. The conventional picking robots suffered from low picking throughput due to a large amount of computation of the object-pose estimation, especially the one for k-NN search, which determines plural neighboring points for every data point. To accelerate the k-NN search, this work introduces a hierarchical graph to the object-pose estimation for the first time instead of a conventional K-D tree since the former enables simultaneous acquisition of plural neighboring points. To save generation time of the hierarchical graph, a reuse of the generated graph is also proposed. Experiments of the proposed accelerating technique using Amazon Picking Contest data sets and Arm Cortex-A53 CPU have confirmed that the object-pose estimation takes 1.1 seconds (improved by a factor of 2.6), and the entire picking process (image recognition, object-pose estimation, and motion planning) takes 2.5 seconds (improved by a factor of 1.7).
Acoustic Metamaterials with Conical Dispersions (2017)

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Fast Global Labeling for Real-Time Stereo Using Multiple Plane Sweeps. (2008)

This work presents a real-time, data-parallel approach for global label assignment on regular grids. The labels are selected according to a Markov random field energy with a Potts prior term for binary interactions. We apply the proposed method to accelerate the cleanup step of a real-time dense stereo method based on plane sweeping with multiple sweeping directions, where the label set directly corresponds to the employed directions. In this setting the Potts smoothness model is suitable, since the set of labels does not possess an intrinsic metric or total order. The observed run-times are approximately 30 times faster than the ones obtained by graph cut approaches. 1
High Quantum Efficiency OLED Lighting Systems (2011)

The overall goal of the program was to apply improvements in light outcoupling technology to a practical large area plastic luminaire, and thus enable the product vision of an extremely thin form factor high efficiency large area light source. The target substrate was plastic and the baseline device was operating at 35 LPW at the start of the program. The target LPW of the program was a >2x improvement in the LPW efficacy and the overall amount of light to be delivered was relatively high 900 lumens. Despite the extremely difficult challenges associated with scaling up a wet solution process on plastic substrates, the program was able to make substantial progress. A small molecule wet solution process was successfully implemented on plastic substrates with almost no loss in efficiency in transitioning from the laboratory scale glass to large area plastic substrates. By transitioning to a small molecule based process, the LPW entitlement increased from 35 LPW to 60 LPW. A further 10% improvement in outcoupling efficiency was demonstrated via the use of a highly reflecting cathode, which reduced absorptive loss in the OLED device. The calculated potential improvement in some cases is even larger, ~30%, and thus there is considerable room for optimism in improving the net light coupling efficacy, provided absorptive loss mechanisms are eliminated. Further improvements are possible if scattering schemes such as the silver nanowire based hard coat structure are fully developed. The wet coating processes were successfully scaled to large area plastic substrate and resulted in the construction of a 900 lumens luminaire device.
Molecular identification of a novel prostaglandin‐specific organic anion transporter (OAT‐PG) that is colocalized with prostaglandin producing enzyme Cox‐2 in the distal tubular cells. (2006)

Since Prostaglandins (PGs) are charged organic anions at physiological pH, PGs transport across the plasma membrane is a carrier-mediated process. In the kidney, especially at the distal tubules, prostaglandinE2 (PGE2) contributes to renal hemodynamics, renin release, and tubular sodium and water level regulation. In this study, we isolated a cDNA encoding a novel prostaglandin-specific transporter from mouse kidney. Because this transporter belongs to organic anion transporter (OAT) family (SLC22) structurally distinct from PGT (SLC0), we named it prostaglandin-specific organic anion transporter (OAT-PG). OAT-PG specifically mediated a transport of PGs, whereas other organic anions (para-aminohippurate, estrone sulfate, taurocholate), organic cations (TEA, choline), and zwitterion (carnitine) were not transported by OAT-PG. OAT-PG mRNA is expressed only in kidney. Immunohistochemical analysis showed that OAT-PG and cyclooxygenase-2 (cox-2) protein were colocalized at the renal distal tubular cells. We speculate OAT-PG and cox-2 would be functionally coupled in distal tubular cells for releasing PGE2 and contribute to renal physiological functions involving in PGE2 metabolism and signaling.