gebhart/patrepeval huggingface dataset:
Characteristics of a-Plane Green Light-Emitting Diode Grown on r-Plane Sapphire (2009)

In this work, we have successfully grown a-plane green light-emitting diodes (LEDs) on r-plane sapphire and investigated the device characteristics of a-plane green LEDs. The apparent emission polarization anisotropy was observed and the polarization degree was as high as 67.4%. In addition, the electroluminescence (EL) spectra first revealed a wavelength blue-shift with increasing drive current to 20 mA, which could be attributed to the band-filling effect, and then the EL peak become constant. The current-voltage curve showed the forward voltage of a-plane LED grown on r-plane sapphire substrate was 3.43 V and the differential series resistance was measured to be about 24 Omega as 20-mA injected current. Furthermore, the output power was 240 muW at 100-mA drive current.
All-to-all sequenced fault detection system (2023)

An apparatus, program product and method enable nodal fault detection by sequencing communications between all system nodes. A master node may coordinate communications between two slave nodes before sequencing to and initiating communications between a new pair of slave nodes. The communications may be analyzed to determine the nodal fault.
Infection patterns in cyclosporine-treated cadaveric renal transplant patients. (1988)

Immunosuppression with Cs regimens has not significantly altered infection patterns relative to earlier modalities. However, reports of increased infection, especially with CMV/PCC, are not borne out in our experience both in numbers and timing of infections. Patients on low-dose Cs immunosuppression do continue to acquire infectious complications but, in general, rarely will lose their grafts or lives.
Slot Bow-Tie Antenna Integration in Flip-Chip and Embedded Die Enhanced QFN Package for WR8 and WR5 Frequency Bands (2022)

Antenna-in-Package (AiP) has emerged as a mainstream technology for millimeter-wave (mmWave) front-end modules driving it to meet future requirements. This paper discusses, for the first time, the design, modeling, and characterization of a slot bow-tie antenna (SBT) integrated into an embedded die enhanced quad flat no-lead (EDeQFN) package along with a comparison of a flip-chip version of the eQFN in WR8 (90GHz-140GHz) and WR5 (140GHz-220GHz) frequency bands. Further, a brief description of the design, modeling, and simulation results of mmWave chip-to-package transitions, transmission line structures, and antenna feed elements are provided. The insertion and return losses of these structures are less than 1.07dB and greater than 17dB, respectively for FCeQFN, less than 0.87dB, and greater than 22dB, respectively for EDeQFN package. The bandwidth and gain of the integrated SBT antenna in the above packages are 40GHz and 80GHz, with a peak gain of 7dBi and 7.7dBi in the WR8 and WR5 band, respectively. A brief description of the designed test vehicles, probing and measurement methodology for antenna bandwidth, and radiation pattern characterization in the WR5 frequency band is also presented.
The Y−Ӯ diagram for radial gradient systems (1988)

The properties of the Y-? diagram as applied to radial gradient lens systems are developed. It is shown that the diagram consists of elliptical arcs, which are circular arcs for certain conditions. The effects of pupil and object shifts are discussed as well as the effects of scaling the pupil size. It is shown how the constructional parameters of the system are read from the diagram. Finally, for the purpose of design, it is shown how one may obtain the Y-? diagram of a system which satisfies a certain set of design constraints.
A Markovian analysis of additive-increase multiplicative-decrease algorithms (2002)

The additive-increase multiplicative-decrease (AIMD) schemes designed to control congestion in communication networks are investigated from a probabilistic point of view. Functional limit theorems for a general class of Markov processes that describe these algorithms are obtained. The asymptotic behaviour of the corresponding invariant measures is described in terms of the limiting Markov processes. For some special important cases, including TCP congestion avoidance, an important autoregressive property is proved. As a consequence, the explicit expression of the related invariant probabilities is derived. The transient behaviour of these algorithms is also analysed.
Supplementary Materials and Methods from Actin Cytoskeleton Remodeling Drives Breast Cancer Cell Escape from Natural Killer–Mediated Cytotoxicity (2023)

&lt;p&gt;Supplementary Materials and Methods&lt;/p&gt;
Regulation of Low Density Lipoprotein Receptor Function in a Human Hepatoma Cell Line (1984)

Low density lipoprotein (LDL) processing was investigated in a human hepatoma-derived cell line, Hep G2. Hep G2 cells bound, internalized and degraded LDL via a saturable, high affinity (Kd approximately 2 X 10(-8)M) pathway similar to that present in other mammalian cells. Although 80% of the uptake and degradation of 125I-LDL was inhibited by 40-fold excess native LDL, the same concentration of methylated LDL, which cannot bind to LDL receptors, had virtually no effect on processing. When added at low concentrations, the lysosomotropic agent, chloroquine, inhibited degradation (I50 approximately 15 microM) without affecting the rate of lipoprotein internalization. Receptor activity was decreased 60% by preincubation of the cells in medium containing a source of cholesterol (LDL or unesterified cholesterol) and increased 1.7-fold by preincubation with compactin, a competitive inhibitor of 3-hydroxy-3-methylglutaryl coenzyme A reductase. The Hep G2 cell line may prove a useful system both for the further study of hepatic lipoprotein metabolism and for the evaluation of new antihypercholesterolemic agents.
THz-fingerprint coherent Raman spectroscopy at over 20,000 spectra/sec (2022)

High-speed broadband Raman spectroscopy (>1000 cm^−1 bandwidth) provides label-free molecular vibrational information with fine temporal resolution, making it valuable for biomedical applications such as vibrational imaging or detecting transient molecular dynamics. Current techniques for high-speed broadband Raman spectroscopy, such as Fourier-transform coherent anti-Stokes Raman scattering (FT-CARS) spectroscopy, can probe the Raman “fingerprint” region (500-1800 cm^−1), but lack sensitivity in the low-frequency or THz region (<200 cm^−1, <6 THz), preventing measurement of rich intermolecular vibrational information. Here we demonstrate a technique combining FT-CARS spectroscopy-like optical filtering with Sagnac interferometry for simultaneous acquisition of THz and fingerprint Raman spectra at 24,000 spectra/sec.
Cognitive behavioral therapy increases amygdala connectivity with the cognitive control network in both MDD and PTSD (2017)

We found evidence for the hypothesis that CBT treatment is associated with changes in connectivity between the amygdala and the fronto-parietal network. CBT may work by strengthening connections between the amygdala and brain regions that are involved in cognitive control, potentially providing enhanced top-down control of affective processes that are dysregulated in both MDD and PTSD.
TGF‐β1 calcium signaling in osteoblasts (2007)

Transforming growth factor-beta1 (TGF-beta1) action is known to be initiated by its binding to multiple cell surface receptors containing serine/threonine kinase domains that act to stimulate a cascade of signaling events in a variety of cell types. We have previously shown that TGF-beta1 and BMP-2 treatment of primary human osteoblasts (HOBs) enhances cell-substrate adhesion. In this report, we demonstrate that TGF-beta1 elicits a rapid, transient, and oscillatory rise in the intracellular Ca(2+) concentration, [Ca(2+)](i), that is necessary for enhancement of cell adhesion in HOBs but does not alter the phosphorylation state of Smad proteins. This rise in [Ca(2+)](i) in HOB is not observed in the absence of extracellular calcium or when the cells are treated with the L-type Ca(2+) channel blocker, nifedipine, but is stimulated upon treatment with the L-type Ca(2+) channel agonist, Bay K 8644, or under high K(+) conditions. The rise in [Ca(2+)](i) is severely attenuated after treatment of the cells with thapsigargin, a selective endoplasmic reticulum Ca(2+) pump inhibitor. TGF-beta1 enhancement of HOB adhesion to tissue culture polystyrene is also inhibited in cells treated with nifedipine. These data suggest that intracellular Ca(2+) signaling is an important second messenger of the TGF-beta1 signal transduction pathway in osteoblast function.
Improved depth propagation for 2D to 3D video conversion using key-frames (2007)

The success of introducing 3D television will depend on the availability of high-quality 3D video. A possible solution to this problem is to convert existing 2D content into 3D. We are working on methods to do this with minimal user interaction and therefore minimal cost. In this paper we improve our previous depth propagation that is based on bilateral filtering. The proposed improved method uses a two stage approach, where first a per-pixel depth estimate is done using a bilateral filter after which in a second step this estimate is corrected through a block-based motion compensation from the previous frame. The best fitting block of the previous frame thus overwrites the depth estimate based on the bilateral filtering. The proposed method raises the average Peak- Signal-To-Noise ratio of newly rendered off-centre view images. The improvement over 99 propagated frames ranges from 0.2 up to 4.3 dB depending on the image sequence. (7 pages)
UCFTAC: A Control Based Supply Chain Management Trading Agent. (2007)

We describe UCFTAC, a trading agent based on control based principles, which has participated with success in 2006 Supply Chain Management Trading Agent Competition. The UCFTAC approach uses a sophisticated procurement strategy and an aggressive price control feature. It achieved competitive results in the TAC-SCM 2006 qualification round. Our design consists of a loosely coupled set of agent-managers, which exchange hints with each other and respond to direct commands from a central controller. We discuss the results obtained by the UCFTAC agent in the qualifying round of the trading agent competition. Copyright © 2007, Association for the Advancement of Artificial Intelligence (www.aaai.org). All rights reserved.
1126: HSP27 Controls Cell Growth and Apoptosis in LNCAP Cells by Regulating the Anti-Apoptotic Phosphoprotein, PEA-15 (2007)

You have accessJournal of UrologyModerated Poster 33, Monday, May 21, 2007, 3:30 - 5:30 pm1 Apr 20071126: HSP27 Controls Cell Growth and Apoptosis in LNCAP Cells by Regulating the Anti-Apoptotic Phosphoprotein, PEA-15 Norihiro Hayashi, Eliana Beraldi, James Peacock, Amina Zoubeidi, Christopher Ong, and Martin E. Gleave Norihiro HayashiNorihiro Hayashi More articles by this author , Eliana BeraldiEliana Beraldi More articles by this author , James PeacockJames Peacock More articles by this author , Amina ZoubeidiAmina Zoubeidi More articles by this author , Christopher OngChristopher Ong More articles by this author , and Martin E. GleaveMartin E. Gleave More articles by this author View All Author Informationhttps://doi.org/10.1016/S0022-5347(18)31340-5AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail "1126: HSP27 Controls Cell Growth and Apoptosis in LNCAP Cells by Regulating the Anti-Apoptotic Phosphoprotein, PEA-15." The Journal of Urology, 177(4S), p. 372 © 2016 by American Urological AssociationFiguresReferencesRelatedDetails Volume 177Issue 4SApril 2007Page: 372 Advertisement Copyright & Permissions© 2016 by American Urological AssociationMetricsAuthor Information Norihiro Hayashi More articles by this author Eliana Beraldi More articles by this author James Peacock More articles by this author Amina Zoubeidi More articles by this author Christopher Ong More articles by this author Martin E. Gleave More articles by this author Expand All Advertisement PDF downloadLoading ...
Line edge and width roughness smoothing by plasma treatment (2014)

Smoothing effects of postlithography plasma treatments on 22-nm lines and spaces are evaluated for two types of extreme ultraviolet photoresists, using five different plasma processes (Ar, H2/Ar, HBr, H2/N2, and H2). Experimental results indicate a reduction in linewidth roughness of about 10% by using an H2 plasma smoothing process. This smoothing process is mainly triggered by the synergy of vacuum ultraviolet photons and H2 reactive species during the plasma treatment. Moreover, the smoothing process is dependent on the resist composition and the pattern dimensions. This paper shows the impact of different plasma conditions on roughness reduction for 22-nm lines.
Mechanical properties of hydrogenated amorphous silicon carbide thin films (2010)

The reliable fabrication of interconnects containing ultra low-k organosilicate dielectrics (ULK) has been a significant technological challenge. ULK's are inherently fragile with reduced elastic constants. In addition, their Si-O backbone makes organosilicate films prone to moisture-assisted cracking leading to serious reliability concerns. In this study, we investigated the mechanical properties of hydrogenated amorphous silicon carbide films (a-SiC:H) that do not contain Si-O bonds. The mechanical properties of a-SiC:H films are considered together with their enhanced fracture resistance and remarkable insensitivity to moisture assisted cracking.
A Direct Grain-Boundary-Activity Correlation for CO Electroreduction on Cu Nanoparticles (2016)

Copper catalyzes the electrochemical reduction of CO to valuable C2+ products including ethanol, acetate, propanol, and ethylene. These reactions could be very useful for converting renewable energy into fuels and chemicals, but conventional Cu electrodes are energetically inefficient and have poor selectivity for CO vs H2O reduction. Efforts to design improved catalysts have been impeded by the lack of experimentally validated, quantitative structure–activity relationships. Here we show that CO reduction activity is directly correlated to the density of grain boundaries (GBs) in Cu nanoparticles (NPs). We prepared electrodes of Cu NPs on carbon nanotubes (Cu/CNT) with different average GB densities quantified by transmission electron microscopy. At potentials ranging from −0.3 V to −0.5 V vs the reversible hydrogen electrode, the specific activity for CO reduction to ethanol and acetate was linearly proportional to the fraction of NP surfaces comprised of GB surface terminations. Our results provide a design principle for CO reduction to ethanol and acetate on Cu. GB-rich Cu/CNT electrodes are the first NP catalysts with significant CO reduction activity at moderate overpotential, reaching a mass activity of up to ∼1.5 A per gram of Cu and a Faradaic efficiency >70% at −0.3 V.
Network-centric Access Control: Models and Techniques (2010)

In both commercial and defense sectors a compelling need is emerging for rapid, yet secure, dissemination of information to the concerned actors. Traditional approaches to information sharing (such as Multi-Level Security (MLS)) adopted a node-centric model wherein each user (social subjects) and each object (information object) is treated in isolation (e.g., using clearance levels for subjects and sensitivity levels for objects in MLS). Over the last two decades information sharing models have been enriched to partially account for relationships between subjects (e.g., Role-based Access Control (RBAC)), relationships between objects (e.g., Chinese-wall model), and relationships between subjects and objects (e.g., Separation of Duty (SoD) constraints). In this paper, we present a novel network-centric access control paradigm that explicitly accounts for network-effects in information flows, and yet offers scalable and flexible risk estimation regarding access control decisions. The goal of this paper is not to prescribe a risk-model for information flows; instead we enable a class of risk-models by developing scalable algorithms to estimate prior and posterior information flow likelihood using the structure of social and information networks. For instance, our network-centric access control model answers questions of the form: Does subject s already have access (via her social network) to object o? If subject s is given access to object o, what is the likelihood that subject s ′ learns object o ′ (where the subjects s and s ′ are related via the social network and the objects o and o ′ are related via the information network)? This paper makes three contributions. First, we show that several state-of-the-art access control models can be encoded using a network-centric access control paradigm, typically by encoding relationships as network edges (subject-subject, object-object and subject-object). Second, we present a suite of composable operators over social and information networks that enable scalable risk estimation for information flows. Third, we evaluate our solutions using the IBM SmallBlue dataset that was collected over a span of one year from an enterprise social network of size over 40,000. 1
Secondary structure and interaction of phage D108 Ner repressor with a 61-base-pair operator: Evidence for altered protein and DNA structures in the complex (1994)

Ner repressors of the transposable phages Mu and D108 play a central role in regulating the expression of the early (transposase) operon and in ensuring that phage growth proceeds along a lytic pathway. The latter function is analogous to that performed by the Cro protein of phage lambda. Unlike lambda Cro, however, the structural basis of operator recognition is not known for the Ner repressors. In order to elucidate the structural features underlying operator recognition by Ner repressors, we have employed Raman spectroscopy as a probe of the solution secondary structures of both D108 Ner and Mu Ner. Additionally, we have obtained Raman spectra of the D108 Ner repressor when bound to a 61-base-pair oligodeoxynucleotide containing the 55-base-pair D108 ner binding site. Conformation-sensitive Raman bands show that both D108 and Mu Ner contain similar, highly alpha-helical (approximately 45%) secondary structures. The Raman markers also show that the substantial nonhelical secondary structure of both D108 Ner and Mu Ner is largely beta-stranded. The protein-free 61-bp D108 ner operator exhibits Raman marker bands diagnostic of an uninterrupted B DNA duplex. In the D108 Ner:DNA complex, we find the following: (i) B DNA stereochemistry is fully conserved, although with significant perturbations to the B form backbone geometry, particularly in AT-rich regions of the bound operator. (ii) The specific interactions that occur between Ner repressor and operator involve B DNA major groove sites. (iii) A small (8 +/- 3%) increase in alpha-helix content of the Ner repressor is detected upon operator binding. (iv) Finally, the local environments of many aromatic amino acids are substantially altered in the D108 Ner:DNA complex. We propose a molecular model for binding of D108 Ner to its operator that is consistent with both the present spectroscopic findings and the results of recent biochemical studies. Essential features of this model are bending of the DNA double helix and contact of operator sites with repressor domains bearing sequence homologies with the helix-turn-helix (HTH) motifs of other DNA-binding proteins. The Raman fingerprint of the Ner:DNA complex is shown to be clearly distinguishable from that of the lambda cI:DNA complex, even though both gene regulatory complexes are presumed to employ HTH recognition motifs. The unique Raman signatures observed for these repressor complexes suggest that the Raman methodology may be useful in discriminating different modes of operator recognition by the HTH motifs of regulatory proteins.
Sensing power MOSFET junction temperature using gate drive turn-on current transient properties (2014)

Junction temperature sensing for high bandwidth power MOSFET junction temperature protection is usually achieved on the power converter's high power side, by directly monitoring the power switches with additional temperature detectors. This requires special considerations for high voltage, high current, high temperature, and EMI protection. This paper presents a new method applied on the power converter's low power side (MOSFET gate drive) so that junction temperature sensing can be integrated into MOSFET gate drive. For the purpose of demonstrating MOSFET junction temperature sensing, a push-pull gate drive is applied to a switching current divider circuit. The gate drive turn-on current transient waveform is used for MOSFET junction temperature estimation. A `gate drive-MOSFET' switching dynamic model is implemented indicating the mechanisms of MOSFET gate drive output dynamics. Modeling includes gatedrive push-pull output, gate drive output parasitics, power MOSFET intrinsic parameters, PCB parasitics, and load parasitics. LTSpice simulation of this model is studied and compared with experimental results.
Laminar-turbulent transition calculations of heat transfer at hypersonic Mach numbers over sharp cones (1988)

Computations of the hypersonic flow around sharp cones were carried out using the PNS code with attention given to the heat transfer predictions around the transition region. Results of calculations performed over 5, 8, and 10 deg half-angle sharp cones in the Mach number range of 7 to 10 are presented. It is noted that calculations of this type have become an integral part of the general design procedure for hypersonic vehicles such as the National Aerospace Plane and the Space Shuttle.
Two Approaches to a Plug-and-Play Vision Architecture – CAVIAR and Psyclone (2005)

This paper compares two solutions for human-like perception using two different modular “plug-and-play” frameworks, CAVIAR (List et al, 2005) and Psyclone (Thórisson et al, 2004, 2005a). Each uses a central point of configuration and requires the modules to be auto-descriptive, auto-critical and auto-regulative (Crowley and Reignier, 2003) for fully autonomous configuration of processing and dataflow. This allows new modules to be added to or removed from the system with minimal reconfiguration. CAVIAR uses a centralised global controller (Bins et al, 2005) whereas Psyclone supports a fully distributed control architecture. We implemented a computer vision-based human behaviour tracker for public scenes in the two frameworks. CAVIAR’s global controller uses offline learned knowledge to regulate module parameters and select between competing results whereas in Psyclone dynamic multi-level control modules adjust parameters, data and process flow. Each framework results in two very different solutions to control issues such as dataflow regulation and module substitution. However, we found that both frameworks allow easy incremental development of modular architectures with increasingly complex functionality. Their main differences lie in runtime efficiency and module interface semantics.
Inclusion relations between power methods of limitation (1976)

Let p(x) = Pk k be a power series with p k (k -0,1, ) complex numbers and 0 < p p g oo its radius of convergence, and assume that P(x) 0 for 0 ^ a p ^ x < p p . The power method of limitation, P, is defined by