gebhart/patrepeval huggingface dataset:
Antisense to LOX-1 Inhibits Oxidized LDL–Mediated Upregulation of Monocyte Chemoattractant Protein-1 and Monocyte Adhesion to Human Coronary Artery Endothelial Cells (2000)

These observations with the first use of a specific antisense to human LOX-1 mRNA suggest that LOX-1 is a key factor in ox-LDL-mediated monocyte adhesion to HCAECs.
60.1: Invited Paper : AMLCD and AMOLEDs: How do They Compare for Green Energy Efficiency? (2010)

Abstract In this paper we will review the power consumption of both AMLCD and AMOLED display technologies, outline roadmaps for future power savings, and discuss the technologies required to implement these savings. We will also analyze fundamental limits to the power consumption of these flat panel displays.
Fabrication of TiO2 and SiO2 Thin Films by Room Temperature Liquid Phase Deposition (2007)

Mesoporous and dense titanium dioxide (TiO2) and silicon dioxide (SiO2) films were deposited directly from nanoparticle colloidal suspensions on quartz using a liquid phase deposition technique. The quartz surface was pre-treated with an -OH group to activate the deposition surface for crack-free adhesion. The deposited films were characterized with the help of scanning electron microscope for microstructural evaluation. An optical profilometer was used to measure the optical properties of the SiO2 film. The reflectance and transmittance patterns of the film were analyzed to determine the index of refraction of the film.
Radiation-induced luminescence properties of Sn-doped hafnium aluminosilicate glass ceramics prepared by using a xenon image furnace (2022)

Abstract In this study, Sn-doped 10HfO 2 –10Al 2 O 3 –80SiO 2 glasses were prepared using a xenon imaging furnace and their physical, optical, and scintillation properties were investigated. At the composition ratio, the specimens did not completely vitrify, and they were crystallized glasses that contained nanocrystals of c-HfO 2 . Raman spectra show the absorption bands due to Si–O–Hf bonds, and the band clearly indicated an effective molecular mingling of SiO 2 and HfO 2 components in the glass. Moreover, the energy dispersive X-ray spectroscopy maps suggested that the elemental distribution of this glass specimen is heterogeneous. In terms of optical properties of the glass, all the specimens showed emission due to Sn 2+ , and their tendency to increase photoluminescence quantum yield with increasing Sn concentration. The estimated luminescence from pulse height spectrum measurements under alpha irradiation was ∼2500 ph MeV −1 , approximately 35% of the GS-20 glass scintillator counterpart.
The Pushshift Telegram Dataset (2020)

Messaging platforms, especially those with a mobile focus, have become increasingly ubiquitous in society. These mobile messaging platforms can have deceivingly large user bases, and in addition to being a way for people to stay in touch, are often used to organize social movements, as well as a place for extremists to congregate.In this paper, we present a dataset from one such mobile messaging platform: Telegram. Our dataset is made up of over 27.8K channels and 317M messages from 2.2M unique users. To the best of our knowledge, our dataset comprises the largest and most complete of its kind. In addition to the raw data, we also provide the source code used to collect it, allowing researchers to run their own data collection instance. We believe the Pushshift Telegram dataset can help researchers from a variety of disciplines interested in studying online social movements, protests, political extremism, and disinformation.
Nanostructured mesoporous materials for lithium-ion battery applications (2011)

The Energy crisis happens to be one of the greatest challenges we are facing today. In this view, much effort has been made in developing new, cost effective, environmentally friendly energy conversion and storage devices. The performance of such devices is fundamentally related to material properties. Hence, innovative materials engineering is important in solving the energy crisis problem. One such innovation in materials engineering is porous materials for energy storage. Porous electrode materials for lithium-ion batteries (LIBs) offer a high degree of electrolyte-electrode wettability, thus enhancing the electrochemical activity within the material. Among the porous materials, mesoporous materials draw special attention, owing to shorter diffusion lengths for Li<sup>+</sup> and electronic movement. Nanostructured mesoporous materials also offer better packing density compared to their nanostructured counterparts such as nanopowders, nanowires, nanotubes etc., thus opening a window for developing electrode materials with high volumetric energy densities. This would directly translate into a scenario of building batteries which are much lighter than today's commercial LIBs. In this article, the authors present a simple, soft template approach for preparing both cathode and anode materials with high packing density for LIBs. The impact of porosity on the electrochemical storage performance is highlighted.
Beam distortion due to carrier refraction in ZnSe at 532 nm (1989)

We report intensity-dependent self-defocusing in polycrystalline ZnSe via beam distortion measurements using 30-ps frequency-doubled Nd:YAG laser pulses. The dominant mechanism is nonlinear refraction due to carriers created by two-photon absorption (2PA). This sequential X (3) :X (1) process is equivalent to a fifth-order process. The numerical fitting to the experimental results gives the refractive index change per carrier of 3.3 × 10 −21 cm 3 using a 2PA coefficient of 5.5 cm/GW. 1 We interpret these measurements in combination with DFWM and Z-scan (a method for n 2 measurements) experimental results, 2 where a fast third-order followed by a slower fifth-order nonlinearity are detected. The magnitude of the third-order nonlinearity given by the Z-scan experiment was n 2 = −3.5 × 10 −11 esu. At low irradiance levels where the third-order nonlinearity governs the nonlinear process, this value is too small to cause any observable change in the beam shape. For this reason, we can conclude that only the carrier induced nonlinearity is important in passive semiconductor optical limiters. 1 While this highlights the insensitivity of beam distortion measurements to phase distortions of less than λ/4, the technique remains useful for quantifying large refractive nonlinearities, such as those required for optical limiting.
Resource allocation in a Quantum Key Distribution Network with LEO and GEO trusted-repeaters (2021)

Quantum Key Distribution (QKD) is a technology that enables the exchange of private encryption keys between two legitimate parties, using protocols that involve quantum mechanics principles. The rate at which secret keys can be exchanged depends on the attenuation that is experienced. Therefore, it is more convenient to replace many terrestrial fiber segments (and repeaters) by just few optical satellite links that would enable flexible global coverage. Then, the satellite nodes can take the role of trusted-relays, forwarding the secret keys from source to destination. However, since the rate at which secret keys can be generated in each quantum link is limited, it is very important to select the intermediate satellite nodes to inter-connect ground stations efficiently. This paper studies the most convenient allocation of resources in a QKD network that combines complementary connectivity services of GEO and LEO satellites. The aim of the centralized routing algorithm is to select the most convenient trusted-relays to forward the secret keys between pairs of ground stations, verifying the constraints that satellite-to-ground and inter-satellite quantum channels have.
An Information-Theoretic-Cluster Visualization for Self-Organizing Maps (2017)

Improved data visualization will be a significant tool to enhance cluster analysis. In this paper, an information-theoretic-based method for cluster visualization using self-organizing maps (SOMs) is presented. The information-theoretic visualization (IT-vis) has the same structure as the unified distance matrix, but instead of depicting Euclidean distances between adjacent neurons, it displays the similarity between the distributions associated with adjacent neurons. Each SOM neuron has an associated subset of the data set whose cardinality controls the granularity of the IT-vis and with which the first- and second-order statistics are computed and used to estimate their probability density functions. These are used to calculate the similarity measure, based on Renyi's quadratic cross entropy and cross information potential (CIP). The introduced visualizations combine the low computational cost and kernel estimation properties of the representative CIP and the data structure representation of a single-linkage-based grouping algorithm to generate an enhanced SOM-based visualization. The visual quality of the IT-vis is assessed by comparing it with other visualization methods for several real-world and synthetic benchmark data sets. Thus, this paper also contains a significant literature survey. The experiments demonstrate the IT-vis cluster revealing capabilities, in which cluster boundaries are sharply captured. Additionally, the information-theoretic visualizations are used to perform clustering of the SOM. Compared with other methods, IT-vis of large SOMs yielded the best results in this paper, for which the quality of the final partitions was evaluated using external validity indices.
Photonic topological semimetals in bianisotropic metamaterials (2019)

We analyze the photonic topological phases in bianisotropic metamaterials characterized by a chirality tensor with zero trace. We found that the strength of chirality component determines the topological character of the metamaterial. The underlying medium can be considered as a topological semimetal with the nontrivial band gap in the momentum space. The topological properties are described by the spin-orbit Hamiltonians with spin 1 and characterized by the nonzero topological invariants. In particular, photonic quantum Hall states exist when the longitudinal chirality component exceeds the permittivity, whereas photonic quantum spin Hall states are present when the chiral nihility occurs. Considering the dispersion in the frequency domain, the bianisotropic metamaterial is regarded as a photonic Weyl system that supports the Weyl points and Fermi arcs. The topological features are further illustrated with the robust transport of edge states at an irregular boundary of the metamaterial.
Optimizing the Stoichiometry of Ga2O3 Grown by RF‐Magnetron Sputter Deposition by Correlating Optical Properties and Growth Parameters (2019)

β‐Ga 2 O 3 thin films are deposited by radiofrequency (RF)‐magnetron sputtering on quartz and c‐sapphire substrates using a ceramic stoichiometric Ga 2 O 3 target and a constant flux of argon process gas. Oxygen flux, heater power, and sputtering power are varied in the synthesis of the layers. The resulting Ga 2 O 3 layers are analyzed in terms of their structural and optical properties. Based on this analysis, the process parameters leading to the formation of an optimized β‐Ga 2 O 3 layer are identified. The main challenge in obtaining the stoichiometric β‐Ga 2 O 3 thin films by sputter deposition is to overcome the influence of a strong preferential sputtering of Ga from the ceramic target. This can be achieved by adding a suitable fraction of oxygen to the argon process gas used in the deposition process. Furthermore, it is demonstrated that the refractive index dispersion of β‐Ga 2 O 3 depends strongly on its composition. Thus, a combined analysis of refractive index dispersion and optical bandgap position may serve as a valuable preliminary probe of the thin film's composition.
Compact modeling of SiC Schottky barrier diode and its extension to junction barrier Schottky diode (2018)

A compact model applicable for both Schottky barrier diode (SBD) and junction barrier Schottky diode (JBS) structures is developed. The SBD model considers the current due to thermionic emission in the metal/semiconductor junction together with the resistance of the lightly doped drift layer. Extension of the SBD model to JBS is accomplished by modeling the distributed resistance induced by the p+ implant developed for minimizing the leakage current at reverse bias. Only the geometrical features of the p+ implant are necessary to model the distributed resistance. Reproduction of 4H-SiC SBD and JBS current–voltage characteristics with the developed compact model are validated against two-dimensional (2D) device-simulation results as well as measurements at different temperatures.
Effect of shade, opacity and layer thickness on light transmission through a nano‐hybrid dental composite during curing (2017)

Composites demonstrate increased light transmittance as curing progress, which may improve depth of cure. The thicker composite showed the least increase in light transmission within the same shade. The increase in translucency is enhanced for composites with great lightness and lower contrast ratio.
Inorganic-organic ZnO Based Heterostructures for Lighting (2009)

Here we present results on different organic and inorganic light emitting diodes (LED). The use of n-ZnO nanorods grown on different substrates forms the base of this new technology. p-type semiconducting as well as polymeric based substrates were used. The combination of n-ZnO nanorods and light emitting polymer(s) will lead to a LED with a broad emission spectrum and hence the possibility of producing white LEDs. Different issues regarding this hybrid new technology for lighting are to be discussed. Among them, we will present electrical, optical and electro-optical characteristics of different configurations of this hybrid technology regarding the polymer layer(s) choice. The light quality of the fabricated n-ZnO nanorods/p-type substrates LEDs will be shown and analyzed. Finally a comparison between this hybrid technology and other LEDs based on ZnO nanorods in combination with other inorganic p-type semiconductor is to be discussed.
In Vitro Fermentation Characteristics of Native Soluble Fiber Sources by Human Colonic Bacteria (2008)

Fermentation of 20 soluble fibers (alginate [ALG], apple pectin [AP], arabinogalactan [AG], carrageenan [CG], carboxymethylcellulose [CMC], citrus pectin [CP], gellan gum [GLG], guar gum [GUG], gum Arabic [GA], gum ghatti [GGH], gum karaya [GK], hydrolyzed guar gum [HGG], konjac flour [KF], locust bean gum [LBG], methylcellulose [MC], oat‐β‐glucan [OBG], psyllium [PS], tomato pectin [TP], tragacanth gum [TG], and xanthan gum [XG]) was evaluated in vitro using three human fecal inocula. Serum bottles (n = 1,008; 125 mL each) were used in a completely randomized design experiment with treatments being arranged as a 20 (substrates) × 8 (incubation times; 1.5, 3, 4.5, 6, 9, 12, 18, and 24 h) factorial. At 24 h, in vitro dry matter disappearance varied ( P &lt; 0.05) as it was lowest (20.3%) for GK, moderate (40.1 to 70.6%) for AP, CP, GLG, GGH, and PS, and highest (≥ 91.0%) for the others. At 24 h, gas production also varied ( P &lt; 0.05) and was highest (≥ 74.0 mL) for GUG, HGG, KF, LBG, OBG, PS, TP, and TG. Of the remaining substrates, four (AP, AG, CG, and CP) had moderate amounts (30.5 to 58.7 mL), four (ALG, GA, GGH, and XG) had very small amounts (≤ 26 mL), and four (CMC, GLG, GK, and MC) had no gas produced. Several soluble fiber sources appear to have high potential in supporting human colon health. The concern with high gas production by some of these fiber sources, however, may limit their supplementation.
Summary Abstract: Optical, Raman, and photoemission results on amorphous ‘‘diamondlike’’ carbon films (1984)

Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation David Mathine, Rodney O. Dillon, A. Azim Khan, George Bu‐Abbud, John A. Woollam, David C. Liu, Bruce Banks, Stan Domitz; Summary Abstract: Optical, Raman, and photoemission results on amorphous ‘‘diamondlike’’ carbon films. Journal of Vacuum Science & Technology A 1 April 1984; 2 (2): 365–366. https://doi.org/10.1116/1.572742 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAVS: Science & Technology of Materials Interfaces and ProcessingJournal of Vacuum Science & Technology A Search Advanced Search |Citation Search
The influence of prednisolone on the secretion of MUC5AC from TH29-MTX cell culture (2000)

INTRODUCTION: Glucocorticoids have been used in the treatment of otitis media with effusion with promising but inconsistent resluts. The HT29-MTX cell line is a completely differentiated and almost exclusively mucous secreting cell line, which therefore has the potential to act as an ideal model for the study of mucus-secreting epithelia. To assess this potential of steroids in suppressing mucin secretion we have studied the response of the cell culture to prednisolone. METHODS: Confluent cell cultures were trypsinized, subcultured in six-well plates and incubated with four doses of prednisolone from 10-5 M to 10-11 M and over varying time courses from 12 to 36 h. ELISA was performed using a monoclonal mouse antibody to human gastric mucin by dot-blot ELISA. RESULTS: Prednisolone caused a reduction in mucin production from the cell line consistently. Media control values ranged from 3495 to 3559 compared with untreated controls of 18 998-27 176 and steroid treatment values of 12 244-27 792. Increasing concentrations of prednisolone result in increasing suppression of MUC5AC (P = 0.005). There was no independent time-related effect. CONCLUSION: There does appear to be a genuine suppression of mucus production by prednisolone and this appears to be dose-dependent but not time-dependent at the times studied. The effect size was small.
Meta-Analysis of Genome-Wide Association Studies in > 80 000 Subjects Identifies Multiple Loci for C-Reactive Protein Levels (2011)

C-reactive protein (CRP) is a heritable marker of chronic inflammation that is strongly associated with cardiovascular disease. We aimed to identify genetic variants that are associated with CRP levels.
Multi-domain feature selection in auditory MisMatch Negativity via PARAFAC-based template matching approach (2016)

MisMatch Negativity (MMN) is a small event-related potential (ERP) that provide an index of sensory learning and perceptual accuracy for the cognitive research. Group-level analysis plays an important role for detecting differences at group or condition level, especially when the signal-to-noise ratio is low. Tensor factorization has provided a framework for group-level analysis of ERPs by exploiting more information of brain responses in more domains simultaneously. A 4-way ERP tensor of time × frequency × channel × subjects/condition is generated and decomposed via PARAFAC. A crucial step after PARAFAC decomposition is to select the component that corresponds to the event of interest and moreover differentiates the two groups\conditions. This is usually done manually, which is tedious when the number of components is high. Here we propose a technique to select the multi-domain feature of an ERP among all extracted features by a template matching approach, that uses the MMN temporal and spectral signatures. Following a statistical test, the selected feature significantly discriminated subjects for the two experimental conditions.
Erratum: The Role of Tissue Factor Pathway Inhibitor in Tumor Growth and Metastasis (2007)

Correction to: The Role of Tissue Factor Pathway Inhibitor in Tumor Growth and MetastasisSemin Thromb Hemost 2007; 33(07): 643-652DOI: 10.1055/s-2007-991531
Analysis of the Genome and Transcriptome of Cryptococcus neoformans var. grubii Reveals Complex RNA Expression and Microevolution Leading to Virulence Attenuation (2014)

Cryptococcus neoformans is a pathogenic basidiomycetous yeast responsible for more than 600,000 deaths each year. It occurs as two serotypes (A and D) representing two varieties (i.e. grubii and neoformans, respectively). Here, we sequenced the genome and performed an RNA-Seq-based analysis of the C. neoformans var. grubii transcriptome structure. We determined the chromosomal locations, analyzed the sequence/structural features of the centromeres, and identified origins of replication. The genome was annotated based on automated and manual curation. More than 40,000 introns populating more than 99% of the expressed genes were identified. Although most of these introns are located in the coding DNA sequences (CDS), over 2,000 introns in the untranslated regions (UTRs) were also identified. Poly(A)-containing reads were employed to locate the polyadenylation sites of more than 80% of the genes. Examination of the sequences around these sites revealed a new poly(A)-site-associated motif (AUGHAH). In addition, 1,197 miscRNAs were identified. These miscRNAs can be spliced and/or polyadenylated, but do not appear to have obvious coding capacities. Finally, this genome sequence enabled a comparative analysis of strain H99 variants obtained after laboratory passage. The spectrum of mutations identified provides insights into the genetics underlying the micro-evolution of a laboratory strain, and identifies mutations involved in stress responses, mating efficiency, and virulence.
Exploiting the Impact of Database System Configuration Parameters: A Design of Experiments Approach. (2008)

Tuning database system configuration parameters to proper values according to the expected query workload plays a very important role in determining DBMS performance. However, the number of configuration parameters in a DBMS is very large. Furthermore, typical query workloads have a large number of constituent queries, which makes tuning very time and effort intensive. To reduce tuning time and effort, database administrators rely on their experience and some rules of thumb to select a set of important configuration parameters for tuning. Nonetheless, as a statistically rigorous methodology is not used, time and effort may be wasted by tuning those parameters which may have no or marginal effects on the DBMS performance for the given query workload. Database administrators also use compressed query workloads to reduce tuning time. If not carefully selected, the compressed query workload may fail to include a query which may reveal important performance bottleneck parameters. In this article, we provide a systematic approach to help the database administrators in tuning activities. We achieve our goals through two phases. First, we estimate the effects of the configuration parameters for each workload query. The effects are estimated through a design of experiments-based PLACKETT &amp;amp; BURMAN design methodology where the number of experiments required is linearly proportional to the number of input parameters. Second, we exploit the estimated effects to: 1) rank DBMS configuration parameters for a given query workload based on their impact on the DBMS performance, and 2) select a compressed query workload that preserves the fidelity of the original workload. Experimental results using PostgreSQL and TPC-H query workload show that our methodologies are working correctly. 1
Josephson Effect in YBa2Cu3O7/Au-Ag/Pb Junctions (1992)

A comprehensive study was carried out on the Josephson effect in YBCO/Au-Ag/Pb SNS junctions prepared on YBCO thin films with various crystal orientations. Most of the fabricated junctions showed a dc Josephson current with a clear Fraunhofer pattern dependence on the applied magnetic field, which ensured the uniformity of the fabricated junction structure. Experimental results were quantitatively compared with the conventional junction theory based on the Usadel equation. The junction characteristics were confirmed to be reasonably explained by a junction model in which a thin insulating or highly resistive layer was assumed to exist at the YBCO-Au interface.