gebhart/patrepeval huggingface dataset:
Quasi-ADS-B Based UAV Conflict Detection and Resolution to Manned Aircraft (2015)

A Conflict Detection and Resolution (CD&R) system for manned/unmanned aerial vehicle (UAV) based on Automatic Dependent Surveillance-Broadcast (ADS-B) concept is designed and verified in this paper. The 900 MHz XBee-Pro is selected as data transponder to broadcast flight information among participating aircraft in omnirange. Standard Compact Position Report (CPR) format packet data are automatically broadcasted by ID sequencing under Quasi-ADS-B mechanism. Time Division Multiple Access (TDMA) monitoring checks the designated time slot and reallocates the conflict ID. This mechanism allows the transponder to effectively share data with multiple aircraft in near airspace. The STM32f103 microprocessor is designed to handle RF, GPS, and flight data with Windows application on manned aircraft and ground control station simultaneously. Different conflict detection and collision avoidance algorithms can be implemented into the system to ensure flight safety. The proposed UAV/CD&R using Quasi-ADS-B transceiver is tested using ultralight aircraft flying at 100–120 km/hr speed in small airspace for mission simulation. The proposed hardware is also useful to additional applications to mountain hikers for emergency search and rescue. The fundamental function by the proposed UAV/CD&R using Quasi-ADS-B is verified with effective signal broadcasting for surveillance and efficient collision alert and avoidance performance to low altitude flights.
The influence of a microlens array on planar organic light-emitting devices (2006)

Though microlens arrays have been used to enhance luminance efficiency and luminance power efficiency of light-emitting diodes (LEDs) and organic LEDs, the influence of the parameters of a microlens array on the efficiency improvement has not been systematically discussed. In this study, the influences of the edge length and the gap of the microlens array on the luminance efficiency, CIE index and optical emitting spectrum of planar OLED devices will be explored. Additionally, a method of analyzing the performance of the luminance efficiency improvement of the device per single microlens in a microlens array of known microlens number density is to be demonstrated.
Combining person based GPS tracking and prompted recall interviews for a comprehensive investigation of travel behaviour adaptation processes during life course transitions (2007)

LASUR
An Integrated Scheme for Fully-Directional Neighbor Discovery and Topology Management in Mobile Ad hoc Networks (2006)

With directional antennas, it is extremely important that a node maintains information with regards to the positions of its neighbors. This would allow the node to "track" the neighbors as they move; otherwise, a node will have to resort to either omnidirectional or circular directional transmissions (or receptions) fairly often. This can be overhead intense and can reduce spatial reuse. Maintaining directional information with regards to a large number of neighbors can itself be expensive; therefore it is important to limit a node's degree. We propose a topology control scheme (Di-ATC) that works with fully directional communications and offers a low degree bound while preserving network connectivity. The key idea is to execute Di-ATC on the discovered neighbors to select and maintain connectivity with only a subset of these neighbors. The members of this subset are those with high angular separations. We perform extensive simulations and demonstrate that our scheme effectively limits node degree while at the same time, preserves network connectivity and achieves low path stretch
Resveratrol: A Double-Edged Sword in Health Benefits (2018)

Resveratrol (3,5,4'-trihydroxy-trans-stilbene) belongs to polyphenols' stilbenoids group, possessing two phenol rings linked to each other by an ethylene bridge. This natural polyphenol has been detected in more than 70 plant species, especially in grapes' skin and seeds, and was found in discrete amounts in red wines and various human foods. It is a phytoalexin that acts against pathogens, including bacteria and fungi. As a natural food ingredient, numerous studies have demonstrated that resveratrol possesses a very high antioxidant potential. Resveratrol also exhibit antitumor activity, and is considered a potential candidate for prevention and treatment of several types of cancer. Indeed, resveratrol anticancer properties have been confirmed by many in vitro and in vivo studies, which shows that resveratrol is able to inhibit all carcinogenesis stages (e.g., initiation, promotion and progression). Even more, other bioactive effects, namely as anti-inflammatory, anticarcinogenic, cardioprotective, vasorelaxant, phytoestrogenic and neuroprotective have also been reported. Nonetheless, resveratrol application is still being a major challenge for pharmaceutical industry, due to its poor solubility and bioavailability, as well as adverse effects. In this sense, this review summarized current data on resveratrol pharmacological effects.
25.3 A 1.35V 5.0Gb/s/pin GDDR5M with 5.4mW standby power and an error-adaptive duty-cycle corrector (2014)

The demand for high-bandwidth memories is increasing with an increase in the need for high-performance systems. Wide-I/O memory and GDDR5 are two types of high-bandwidth memories. GDDR5 is more compatible than wide I/O for contemporary systems, such as graphics cards and game consoles. The datarate of GDDR5 has reached 7Gb/s/pin. However, the power consumption and cost have increased owing to high-performance-oriented designs, die penalties, and additional test costs. DDR4 is an alternative low-cost memory with high performance in the range of 2.4 to 3.2Gb/s/pin [1]. However it is difficult for DDR4 DRAM to raise the 3.2Gb/s/pin bin portion to lower the cost. In DRAMs, the standby power and self-refresh power are more important than the operating power because DRAMs are mainly in the standby or self-refresh mode in systems. As the operating speed increases, the data window is narrowed, and the jitter increases. Therefore, a duty-cycle corrector (DCC) is employed to increase the data window when the external clock duty cycle is distorted in GDDR5 [2]. The bang-bang jitter caused by the DCC is inevitable even if the external clock duty ratio is exactly 50%. Sometimes the DCC may distort the data window because of an internal DCC offset. This paper presents a GDDR5M (mainstream) memory for graphics cards and a small-outline dual-inline memory module) (SO-DIMM). The standby power is managed by the auto-sync mode. Additionally, the architecture of GDDR5M is similar to that of DDR4, and not GDDR5. The error-adaptive DCC can remove the initial duty-cycle offset automatically and remove the bang-bang jitter when the duty cycle of the external clock is not distorted.
Validation of a Portable Electronic Visual Acuity System (2014)

Background: The use of tablet devices and smartphones in medicine as assessment tools is becoming more widespread. These devices now run mobile applications or ‘‘apps’’ that have traditionally been the domain of desktop computers or more dedicated hardware. It is important that health professionals have confidence in the accuracy of measurements obtained from these new tools. The ‘‘EyeSnellen’’ app for the iPhone/iPad (running Apple Inc’s iOS operating system) allows users to measure visual acuity using a portable Snellen chart installed on a tablet device. Aims: To compare the visual acuity measurements obtained from EyeSnellen iPad app with a standard illuminated Snellen Chart. Methods: Participants were recruited from a tertiary level eye clinic in Western Australia. Visual acuity was measured using the Snellen light box chart and a visual acuity measurement was obtained using EyeSnellen app installed on an Apple iPad mini with the use of an Apple Iphone as a remote that was connected via Bluetooth. Results: 122 eyes were tested. Bland-Altman analysis revealed a mean difference of 0.001 logMAR units between the visual acuity measurements obtained from EyeSnellen app and those taken on the light box chart with 95% limits of agreement of 0.169 to 0.171. Conclusion: The Snellen Chart function on EyeSnellen app is equivalent to the traditional Snellen chart at measuring visual acuity at a test distance of 6 metres.
Distribution of relaxation times for effect identification and modeling of impedance spectra (2014)

Impedance spectroscopy provides an increased amount of information with one measurement. The drawback is that a suitable model as well as a reliable fitting is needed for data evaluation. Therfore a suitable data representation is needed that serves two purposes. First it should help to identify processes within the device under test as a support for building a model and it should give some initial values for parameterization. The distribution of relaxation times (DRT) provides such a data representation. It transforms impedance data from the frequency domain to a time constant domain were different relaxation mechanisms can be separated more easily and sometimes their type can be identified using the shape of the DRT. In an example the DRT is used to identify mechanisms and to build a suitable model for the impedance data analysis of battery aging data.
The Fourier transform of spline-function approximations to continuous data (1971)

The transform of a spline-function approximation to continuous data is called a spline transform. In this correspondence, the spline and the discrete Fourier transforms (DFT) are compared as means for numerical computation of the Fourier integral transform. It is shown how the spline transform reduces errors introduced by the discrete transform and alleviates noise problems when the sampling rate is limited due to experimental method or hardware constraints.
The LuxM Homologue VanM from <i>Vibrio anguillarum</i> Directs the Synthesis of <i>N</i> -(3-Hydroxyhexanoyl)homoserine Lactone and <i>N</i> -Hexanoylhomoserine Lactone (2001)

Vibrio anguillarum, which causes terminal hemorrhagic septicemia in fish, was previously shown to possess a LuxRI-type quorum-sensing system (vanRI) and to produce N-(3-oxodecanoyl)homoserine lactone (3-oxo-C10-HSL). However, a vanI null mutant still activated N-acylhomoserine lactone (AHL) biosensors, indicating the presence of an additional quorum-sensing circuit in V. anguillarum. In this study, we have characterized this second system. Using high-pressure liquid chromatography in conjunction with mass spectrometry and chemical analysis, we identified two additional AHLs as N-hexanoylhomoserine lactone (C6-HSL) and N-(3-hydroxyhexanoyl)homoserine lactone (3-hydroxy-C6-HSL). Quantification of each AHL present in stationary-phase V. anguillarum spent culture supernatants indicated that 3-oxo-C10-HSL, 3-hydroxy-C6-HSL, and C6-HSL are present at approximately 8.5, 9.5, and 0.3 nM, respectively. Furthermore, vanM, the gene responsible for the synthesis of these AHLs, was characterized and shown to be homologous to the luxL and luxM genes, which are required for the production of N-(3-hydroxybutanoyl)homoserine lactone in Vibrio harveyi. However, resequencing of the V. harveyi luxL/luxM junction revealed a sequencing error present in the published sequence, which when corrected resulted in a single open reading frame (termed luxM). Downstream of vanM, we identified a homologue of luxN (vanN) that encodes a hybrid sensor kinase which forms part of a phosphorelay cascade involved in the regulation of bioluminescence in V. harveyi. A mutation in vanM abolished the production of C6-HSL and 3-hydroxy-C6-HSL. In addition, production of 3-oxo-C10-HSL was abolished in the vanM mutant, suggesting that 3-hydroxy-C6-HSL and C6-HSL regulate the production of 3-oxo-C10-HSL via vanRI. However, a vanN mutant displayed a wild-type AHL profile. Neither mutation affected either the production of proteases or virulence in a fish infection model. These data indicate that V. anguillarum possesses a hierarchical quorum sensing system consisting of regulatory elements homologous to those found in both V. fischeri (the LuxRI homologues VanRI) and V. harveyi (the LuxMN homologues, VanMN).
Pseudorandomness of ring-LWE for any ring and modulus (2017)

We give a polynomial-time quantum reduction from worst-case (ideal) lattice problems directly to decision (Ring-)LWE. This extends to decision all the worst-case hardness results that were previously known for the search version, for the same or even better parameters and with no algebraic restrictions on the modulus or number field. Indeed, our reduction is the first that works for decision Ring-LWE with any number field and any modulus.
Base and collector leakage currents and their relevance to the reliability of AlGaAs/GaAs heterojunction bipolar transistors (1994)

Base and collector leakage currents are extremely important to AlGaAs/GaAs heterojunction bipolar transistor (HBT) d.c. characteristics, and a simple model to describe such currents is presented. This study suggests that these currents are originated from the electron and hole leakage through the dielectric layer at the emitter-base and base-collector peripheries, as well as through the n/sup +/-subcollector/semi-insulating-substrate interface. The relevance of the leakage currents to the post-burn-in HBT behavior (e.g., current-gain degradation) is also investigated.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Optical plasmonic resonances in split-ring resonator structures: an improved LC model (2008)

We systematically investigate the resonant behavior of arrays of Ag nano-structures ranging from isolated simple rods, to U-shapes, to single split ring structures. We show that the lowest order plasmonic resonance associated with a rod red shifts as we create a U and SRR into the position normally associated with a simple LC mode. A second mode red shifts and grows in intensity as we extend the arms of the U-shape, and a third mode appears in the spectra as we close the arms and form a split ring structure. We performed simulations of the structures and examine the E-field and current density. The simulations show that the current path is different for these modes. We examine the behavior of the lowest order mode in detail, discuss the effects of skin depth, and present an improved LC model to describe this resonance.
SNAP-25-associated Hrs-2 protein colocalizes with AQP2 in rat kidney collecting duct principal cells (2001)

The vasopressin-induced trafficking of aquaporin-2 (AQP2) water channels in kidney collecting duct is likely mediated by vesicle-targeting proteins (N-ethylmaleimide-sensitive factor attachment protein receptors). Hrs-2 is an ATPase believed to have a modulatory role in regulated exocytosis. To examine whether Hrs-2 is expressed in rat kidney, we carried out RT-PCR combined with DNA sequence analysis and Northern blotting using a digoxigenin-labeled Hrs-2 RNA probe. RT-PCR and Northern blotting revealed that Hrs-2 mRNA is localized in all zones of rat kidney. The presence of Hrs-2 protein in rat kidney was confirmed by immunoblotting, revealing a 115-kDa protein in kidney and brain membrane fractions corresponding to the expected molecular size of Hrs-2. Immunostaining and confocal laser scanning microscopy of LLC-PK(1) cells (a porcine proximal tubule cell line) transfected with Hrs-2 DNA confirmed the specificity of the antibody and revealed that Hrs-2 is mainly localized in intracellular compartments, including cathepsin D-containing lysosomal/endosomal compartments. The cellular and subcellular localization of Hrs-2 in rat kidney was examined by immunocytochemistry and confocal laser scanning microscopy. Hrs-2 immunoreactivity was observed in collecting duct principal cells, and weaker labeling was detected in other nephron segments. The labeling was predominantly present in intracellular vesicles, but labeling was also observed in the apical plasma membrane domains of some cells. Colabeling with AQP2 revealed colocalization in vesicles and apical plasma membrane domains, suggesting a role for Hrs-2 in regulated AQP2 trafficking.
Succinate:Quinol Oxidoreductases in the Cyanobacterium <i>Synechocystis</i> sp. Strain PCC 6803: Presence and Function in Metabolism and Electron Transport (2000)

The open reading frames sll1625 and sll0823, which have significant sequence similarity to genes coding for the FeS subunits of succinate dehydrogenase and fumarate reductase, were deleted singly and in combination in the cyanobacterium Synechocystis sp. strain PCC 6803. When the organic acid content in the Deltasll1625 and Deltasll0823 strains was analyzed, a 100-fold decrease in succinate and fumarate concentrations was observed relative to the wild type. A similar analysis for the Deltasll1625 Deltasll0823 strain revealed that 17% of the wild-type succinate levels remained, while only 1 to 2% of the wild-type fumarate levels were present. Addition of 2-oxoglutarate to the growth media of the double mutant strain prior to analysis of organic acids in cells caused succinate to accumulate. This indicates that succinate dehydrogenase activity had been blocked by the deletions and that 2-oxoglutarate can be converted to succinate in vivo in this organism, even though a traditional 2-oxoglutarate dehydrogenase is lacking. In addition, reduction of the thylakoid plastoquinone pool in darkness in the presence of KCN was up to fivefold slower in the mutants than in the wild type. Moreover, in vitro succinate dehydrogenase activity observed in wild-type membranes is absent from those isolated from the double mutant and reduced in those from the single mutants, further indicating that the sll1625 and sll0823 open reading frames encode subunits of succinate dehydrogenase complexes that are active in the thylakoid membrane of the cyanobacterium.
Mass spectrometric study of benzylidenecyanoacetamides (1999)

A mass spectrometric study of several para-substituted benzylidenecyanoacetamides was performed; thus, electron impact, chemical ionization and fast atom bombardment mass spectrometric studies for each molecule were acquired and then compared in order to establish a general fragmentation pattern. In (establish) particular the electron impact pathways were investigated and confirmed by using constant B/E linked scans and high resolution data. Copyright © 1999 John Wiley & Sons, Ltd.
Modification of Paracetamol Toxicity by Antioxidants (1976)

Conference Article| April 01 1976 Modification of Paracetamol Toxicity by Antioxidants JERRY KELLEHER; JERRY KELLEHER *University Department of Medicine, St. James's Hospital, Leeds LS9 7TF, U.K. Search for other works by this author on: This Site PubMed Google Scholar BARRY E. WALKER; BARRY E. WALKER *University Department of Medicine, St. James's Hospital, Leeds LS9 7TF, U.K. Search for other works by this author on: This Site PubMed Google Scholar NIALL P. KEANEY; NIALL P. KEANEY *University Department of Medicine, St. James's Hospital, Leeds LS9 7TF, U.K. Search for other works by this author on: This Site PubMed Google Scholar MONTY S. LOSOWSKY; MONTY S. LOSOWSKY *University Department of Medicine, St. James's Hospital, Leeds LS9 7TF, U.K. Search for other works by this author on: This Site PubMed Google Scholar MICHAEL F. DIXON MICHAEL F. DIXON †University Department of Pathology, School of Medicine, Leeds LS9 9NL, U.K. Search for other works by this author on: This Site PubMed Google Scholar Biochem Soc Trans (1976) 4 (2): 292–294. https://doi.org/10.1042/bst0040292 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Facebook Twitter LinkedIn Email Cite Icon Cite Get Permissions Citation JERRY KELLEHER, BARRY E. WALKER, NIALL P. KEANEY, MONTY S. LOSOWSKY, MICHAEL F. DIXON; Modification of Paracetamol Toxicity by Antioxidants. Biochem Soc Trans 1 April 1976; 4 (2): 292–294. doi: https://doi.org/10.1042/bst0040292 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 ContentAll JournalsBiochemical Society Transactions Search Advanced Search © 1976 Biochemical Society1976 Article PDF first page preview Close Modal You do not currently have access to this content.
Dependence of quantitative accuracy of CT perfusion imaging on system parameters (2017)

Deconvolution is a popular method to calculate parametric perfusion parameters from four dimensional CT perfusion (CTP) source images. During the deconvolution process, the four dimensional space is squeezed into three-dimensional space by removing the temporal dimension, and a prior knowledge is often used to suppress noise associated with the process. These additional complexities confound the understanding about deconvolution-based CTP imaging system and how its quantitative accuracy depends on parameters and sub-operations involved in the image formation process. Meanwhile, there has been a strong clinical need in answering this question, as physicians often rely heavily on the quantitative values of perfusion parameters to make diagnostic decisions, particularly during an emergent clinical situation (e.g. diagnosis of acute ischemic stroke). The purpose of this work was to develop a theoretical framework that quantitatively relates the quantification accuracy of parametric perfusion parameters with CTP acquisition and post-processing parameters. This goal was achieved with the help of a cascaded systems analysis for deconvolution-based CTP imaging systems. Based on the cascaded systems analysis, the quantitative relationship between regularization strength, source image noise, arterial input function, and the quantification accuracy of perfusion parameters was established. The theory could potentially be used to guide developments of CTP imaging technology for better quantification accuracy and lower radiation dose.
Integration of ultrathin (1.6∼2.0 nm) RPECVD oxynitride gate dielectrics into dual poly-Si gate submicron CMOSFETs (2003)

Detailed comparisons indicates superior performance and reliability in dual poly-Si gate CMOSFETs in which oxynitride alloys have been substituted for nitrides of stacked oxide/nitride dielectrics with Tox-eq /spl sim/2 nm. Similar comparisons using CMOSFETs with optimized oxide/oxynitride stacked dielectrics (Tox-eq /spl sim/1.67 nm) which also include interface plasma-nitridation at the one monolayer level are reported. These also indicate superior performance and reliability with respect to CMOSFET devices with stacked oxide/nitride dielectrics, including an additional /spl sim/10/spl times/ decrease in direct tunneling due to the interface nitridation.