gebhart/patrepeval huggingface dataset:
ChemInform Abstract: Nocardithiocin, a Novel Thiopeptide Antibiotic, Produced by Pathogenic Nocardia pseudobrasiliensis IFM 0757. (2010)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Intimate association of eosinophils to collagen bundles in eosinophilic myocarditis and ranitidine-induced hypersensitivity myocarditis. (1995)

These results suggest that some cases of eosinophilic myocarditis may be caused by the expression of novel antigens bound to collagen bundles. In one of the patients awaiting cardiac transplant, cardiac decompensation was temporally associated with ranitidine therapy, an agent not previously implicated as a cause of hypersensitivity myocarditis.
Investigating the potential of deep learning for patient-specific quality assurance of salivary gland contours using EORTC-1219-DAHANCA-29 clinical trial data (2021)

Automated DL-based contour QA is feasible but some visual inspection remains essential. The substantial number of false positives were caused by sub-optimal performance of the DL-model. Improvements to the model will increase the extent of automation and reliability, facilitating the adoption of DL-based contour QA in clinical trials and routine practice.
Sampling Rate Selection for Fractional Sampling in OFDM (2007)

Through fractional sampling, it is possible to separate multi- path components and achieve diversity. However, power consumption grows as the sampling rate increases. In this paper, a novel sampling rate selection scheme in OFDM according to multipath environments is proposed. Numerical results through computer simulation show that the proposed sampling rate selection scheme reduces power consumption by decreasing the sampling rate when delay spread is small.
Plant Responses to Bacterial N-Acyl l-Homoserine Lactones are Dependent on Enzymatic Degradation to l-Homoserine (2014)

Many bacteria use quorum sensing (QS) to regulate phenotypes that ultimately benefit the bacterial population at high cell densities. These QS-dependent phenotypes are diverse and can have significant impacts on the bacterial host, including virulence factor production, motility, biofilm formation, bioluminescence, and root nodulation. As bacteria and their eukaryotic hosts have coevolved over millions of years, it is not surprising that certain hosts appear to be able to sense QS signals, potentially allowing them to alter QS outcomes. Recent experiments have established that eukaryotes have marked responses to the N-acyl L-homoserine lactone (AHL) signals used by Gram-negative bacteria for QS, and the responses of plants to AHLs have received considerable scrutiny to date. However, the molecular mechanisms by which plants, and eukaryotes in general, sense bacterial AHLs remain unclear. Herein, we report a systematic analysis of the responses of the model plants Arabidopsis thaliana and Medicago truncatula to a series of native AHLs and byproducts thereof. Our results establish that AHLs can significantly alter seedling growth in an acyl-chain length dependent manner. Based upon A. thaliana knockout studies and in vitro biochemical assays, we conclude that the observed growth effects are dependent upon AHL amidolysis by a plant-derived fatty acid amide hydrolase (FAAH) to yield L-homoserine. The accumulation of l-homoserine appears to encourage plant growth at low concentrations by stimulating transpiration, while higher concentrations inhibit growth by stimulating ethylene production. These results offer new insights into the mechanisms by which plant hosts can respond to QS signals and the potential role of QS in interkingdom associations.
AN AMPLITUDE- AND FREQUENCY-MODULATION VOCODER FOR AUDIO SIGNAL PROCESSING (2008)

The decomposition of audio signals into perceptually meaningful modulation components is highly desirable for the development of new audio effects on the one hand and as a building block for future efficient audio compression algorithms on the other hand. In the past, there has always been a distinction between parametric coding methods and waveform coding: While waveform coding methods scale easily up to transparency (provided the necessary bit rate is available), parametric coding schemes are subjected to the limitations of the underlying source models. Otherwise, parametric methods usually offer a wealth of manipulation possibilities which can be exploited for application of audio effects, while waveform coding is strictly limited to the best as possible reproduction of the original signal. The analysis/synthesis approach presented in this paper is an attempt to show a way to bridge this gap by enabling a seamless transition between both approaches. 1.
Spektrale Hypergraphen Partitionierung und Relative Entropie (2015)

Die vorliegende Arbeit handelt vom informationstheoretischen Unterschied zwischen
Hypergraphen und ungerichteten Graphen, der sich bei spektraler Bisektion dieser
Objekte zeigt. Es werden auch die Auswirkungen allgemeinerer Losch- und Kontraktionsoperationen
von Hyperkanten in einem Hypergraphen von verschiedenen
anderen Blickwinkeln aus betrachtet. In der Arbeit schranken wir uns auf eine Klasse
von Hypergraphen ein, die strukturell etwas reichhaltiger ist: Simplizialkomplexe.
Diese ermoglichen es hoherdimensionale Laplace-Operatoren zu definieren, welche in
naturlicher Weise Laplace-Operatoren auf ungerichteten Graphen verallgemeinern.
Ebenso konnen isoperimetrische Grosen fur Graphen - kombinatorische Cheeger-
Konstanten - auf Simplizialkomplexe erweitert werden. Es wird eine neue isoperimetrische
Grose fur Simplizialkomplexe, basierend auf minimalem Interaktionsverlust,
vorgeschlagen und eine entsprechende isoperimetrische Ungleichung fur diese
Grose gezeigt. Die Kullback-Leibler Divergenz, auch bekannt als relative Entropie,
wird verwendet um den Unterschied zwischen Simplizialkomplexen und ungerichteten
Graphen aus informationstheoretischer Sicht zu betrachten. Mittels hierarchischer
Exponentialfamilien, die in naturlicher Weise von Simplizialkomplexen induziert
werden, definieren wir eine relative Entropie zwischen Simplizialkomplexen.
Zur systematischen Untersuchung dieser relativen Entropie betrachten wir deren
Verhalten bei der Ausfuhrung bestimmter Operationen, wie Losch- und Kontraktionsoperationen
von Simplizes, auf Simplizialkomplexen. Durch eine genaue Analyse
von marginalisierten Exponentialfamilien und der Verwendung von bereits bekannten
Zerlegungsformeln fur die Kullback-Leibler Divergenz, gelingt es eine Klasse von
Operationen auf Simplizialkomplexen zu identifizieren, fur welche sich zahlreiche exakte
Ausdrucke und Ungleichungen der relativen Entropie herleiten lassen. Fur allgemeinere
Operationen auf Simplizialkomplexen wird eine obere Schranke der relativen
Entropie gezeigt. Mittels einer expliziten Konstruktion von Wahrscheinlichkeitsverteilungen
lassen sich untere Schranken der relativen Entropie zwischen getrennten
und nicht getrennten Simplizialkomplexen angeben. Basierend auf der Beobachtung
aus der spektralen Graphentheorie, in welcher der kleinste nichttriviale Eigenwert
des Laplace-Operators mit einer kombinatorischen Cheeger-Konstante in Relation
gebracht wird, zeigen wir einen Zusammenhang dieses Eigenwertes mit skalierten relativen
Entropiegrosen. Dazu wird eine informationstheoretische Cheeger-Konstante
eingefuhrt, welche wir mit einer kombinatorischen Cheeger-Konstante in Verbindung
bringen. Es lassen sich dann informationstheoretische Cheeger-Ungleichungen
fur ungerichtete Graphen und fur Simplizialkomplexe herleiten. Insbesondere ist es
moglich durch eine sogenannte Entropielucke den informationstheoretischen Unterschied
zwischen Simplizialkomplexen und ungerichteten Graphen zu sehen.
Apparatus for mixing fuel in a gas turbine (2023)

A combustor nozzle includes an inlet surface and an outlet surface downstream from the inlet surface, wherein the outlet surface has an indented central portion. A plurality of fuel channels are arranged radially outward of the indented central portion, wherein the plurality of fuel channels extend through the outlet surface.
NBVC: A Benchmark for Depth Estimation from Narrow-Baseline Video Clips (2020)

We present a benchmark for online, video-based depth estimation, a problem that is not covered by the current set of benchmarks for evaluating 3D reconstruction, which focus on offline, batch reconstruction. Online depth estimation from video captured by a moving camera is a key enabling technology for compelling applications in robotics and augmented reality. Inspired by progress in many aspects of robotics due to benchmarks and datasets, we propose a new benchmark called NBVC for evaluating methods for online depth estimation from video. Our benchmark is composed of short video sequences with corresponding high-quality ground truth depth maps, derived from the recent Tanks and Temples dataset. We are hopeful that our work will be instrumental in the development of learning-based algorithms for online depth estimation from video clips, and will also lead to improvements in conventional approaches. In addition to the benchmark, we present a superpixel-based plane sweeping stereo algorithm and use it to investigate various aspects of the problem. The paper contains our initial findings and conclusions.
Broadband Wide‐Angle Multifunctional Polarization Converter via Liquid‐Metal‐Based Metasurface (2017)

Metasurfaces enable flat optical components with predesigned functionalities, including the polarization conversion using subwavelength elements. However, switching between different functionalities of the metasurface‐based optical components is extremely difficult because subwavelength elements have to be finely addressed to change the spatial phase gradient for desired functionality. Here, it is demonstrated, for the first time, a broadband wide‐angle multifunctional polarization converter via galinstan‐based metasurface with each element array actively addressed. The switching between different functionalities is realized by controlling L‐shaped galinstan resonator using microfluidic channels, which maintain the optical performances, that is, broadband and large angular tolerance, of the polarization converter. Furthermore, the galinstan‐based metasurface is also demonstrated to function as a broadband optical attenuator, which provides prospects for various applications, such as smart radar, stealth technology, and light manipulation for quantum communication.
PRORETA 3: An Integrated Approach to Collision Avoidance and Vehicle Automation : System Description, Requirements and Preliminary Results (2021)

The article describes first results of the research&#13;\nproject PRORETA 3 that aims at the development of an integral driver assistance system for collision avoidance and&#13;\nautomated vehicle guidance based on a modular system architecture. For this purpose, relevant information is extracted&#13;\nfrom a dense environment model and fed into a potential field-based trajectory planner that calculates reference&#13;\nsignals for underlying vehicle controllers. In addition, the&#13;\ndriver is supported by a human-machine interface.
Interfacing Fracturing and Sand Control Completion Strategies into Multilateral Technology; Considerations and Solutions (2003)

Abstract Multilateral technology offers the oilfield many advantages since it can deploy a completion system that can mechanically connect several lateral wellbores to a parent wellbore and will allow selective or commingled production. In most cases, these capabilities can provide more cost-effective well construction since reservoir exposure from one wellbore is increased. These advantages are particularly beneficial in offshore and deepwater environments where slot and/or sub-sea templates are limited, and rig costs are substantially higher. Because of the flexibility of this technique and its capability to offer various production options, it helps to mitigate the risks previously associated with directional/horizontal wells in new field developments as well as in revitalization of mature fields. Because of continual improvement in drilling techniques and the increase in field success, multilateral technology continues to gain in popularity; however, as with all completion techniques, it must be remembered that existing completion options must be evaluated for each case, and if needed, adapted to meet specific reservoir objectives and concerns. This paper will focus on considerations, applications, and benefits of specific tool configurations developed for interfacing sand-control fracturing stimulation with multilateral technology. The techniques discussed include existing, modified, and conceptual completion methods that can be deployed into multilateral field-development strategies. The strategies address window selection, junction isolation, fluid loss, debris management, and lateral accessibility. Several completion sequences, which include a new Technology Advancement for Multi-Lateral (TAML) level 4 single-trip, gravel-pack methods and installation of expandable screen technology, will also be presented.
Lineage-Specific Functionality of an Interferon Regulatory Factor 5 Lupus Risk Haplotype: Lack of B Cell Intrinsic Effects (2018)

Interferon regulatory factor 5 (IRF5) is widely recognized as a risk locus for systemic lupus erythematosus (SLE). Risk gene and IRF5 activation is triggered through toll-like receptor signaling. In myeloid cells, this leads to production of type I interferon and inflammatory cytokines, with enhanced production in cells of individuals harboring IRF5 risk alleles. Mouse models have also demonstrated the importance of IRF5 in B cell function, particularly plasma cell differentiation and isotype switching. Here, we evaluated the major SLE risk haplotype of IRF5 on the functional attributes of freshly isolated B cells from human subjects who do not have evidence of SLE or other forms of autoimmunity. We took this approach to avoid the complications of studying genotype-phenotype relationships in B cells that have been chronically exposed to an inflammatory disease environment before isolation. We focused on B cell endophenotypes that included gene expression, antibody secretion, class switching, and apoptotic susceptibility. We performed IRF5 overexpression studies, genetic reporter assays and electro-mobility shift assays on B and myeloid cell lines. Somewhat surprisingly, the results of our analyses indicate that IRF5 risk genotypes do not have a B cell intrinsic effect on these B cell functions. By contrast, we confirmed that the IRF5 risk and non-risk haplotypes exert differential effects in myeloid cells, including an increased susceptibility to apoptosis conferred by the risk haplotype. We also demonstrated an increased binding of the transcription factor specificity protein 1 to an insertion/deletion present in the risk haplotype. Our findings raise the specter that genetic risk alleles can have complex and unexpected lineage-specific effects, and these must be carefully considered when guiding or developing therapies based on understanding disease risk haplotypes.
Hierarchical Scheduling with FPGA-based Accelerator for Flexible 5G Mobile Networks (2020)

Towards the deployment of flexible 5G mobile networks, this paper presents a hierarchical coordinated radio-resource scheduling method along with a scheme for its practical hardware implementation in a field-programmable gate array (FPGA). The scheduler in the 5G era will have to quickly perform coordinated scheduling for a huge number of transmission antennas and support flexibility for advanced scheduling algorithms. To meet these requirements, we designed an FPGA-based scheduler that hierarchically controls the radio transmissions of all transmission antennas beyond a central unit. Experimental measurements reveal that the FPGA-based hierarchical coordinated scheduler shows comparable processing speed on the radio-frame time scale. Moreover, in numerical simulations, the overall system throughput with the hierarchical coordinated scheduler is 1.25 times higher than that obtained by the conventional method when the number of transmission antennas and mobile terminals are 32 and 256, respectively. Our proposed scheduling method will enable the deployment of flexible 5G mobile networks.
Nonlinear Adaptive Engine Speed Control Using an Instrumental Variables Approach and a Truncated Volterra Series (2005)

An instrumental variable approach to nonlinear model-based adaptive control of engine speed is investigated and implemented on a spark ignition internal combustion engine. A four-step version of the instrumental variable parameter estimation algorithm is used to identify a bias-free and noise tolerant model of the engine dynamics between the by-pass air valve voltage and engine speed. The parametric model representing the engine dynamics is a truncated Volterra series with a time delay. Model-based adaptive control is accomplished through a partitioned inversion of the engine model which is minimum phase and OL stable. The desired closed loop throttle response and disturbance rejection dynamics are introduced via a two-degree-of-freedom feedback control structure. Performance of the nonlinear model-based adaptive control algorithm is verified experimentally.
Internet Computing of Tasks with Dependencies Using Unreliable Workers (Extended Abstract) (2005)

This paper studies the problem of improving the effectiveness of computing dependent tasks over the Internet. The distributed system is composed of a reliable server that coordinates the computation of a massive number of unreliable workers. It is known that the server cannot always ensure that the result of a task is correct without computing the task itself. This fact has significant impact on computing interdependent tasks. Since the computational capacity of the server may be restricted and so may be the time to complete the computation, the server may be able to compute only selected tasks, without knowing whether the remaining tasks were computed by workers correctly. But an incorrectly computed task may render the results of all dependent tasks incorrect. Thus it may become important for the server to compute judiciously selected tasks, so as to maximize the number of correct results. In this work we assume that any worker computes correctly with proba- bility p< 1. Any incorrectly computed task corrupts all dependent tasks. The goal is to determine which tasks should be computed by the (reli- able) server and which by the (unreliable) workers, and when, so as to maximize the expected number of correct results, under a constraint d on the computation time. We show that this optimization problem is NP- hard. Then we study optimal scheduling algorithms for the mesh with the tightest deadline. We present combinatorial arguments that completely describe optimal solutions for two ranges of values of worker reliability p ,w henp is close to zero and when p is close to one.
Comments on article by Yin (2009)

Inferential methods for Generalized Linear Mixed Models (GLMMs) are under intense methodological development because they: 1) are widely applicable; and 2) raise non-trivial technical and inferential challenges. The Generalized Method of Moments (GMM)
Onset of unsteady flow in wavy walled channels at low Reynolds number (2014)

Using computational modeling, we examine the development of an unsteady laminar flow of a Newtonian fluid in a channel with sinusoidal walls. The flow is driven by a constant pressure gradient. The simulations reveal two types of unsteady flows occurring in sinusoidal channels. When the amplitude of the wavy walls is relatively small, vortices forming in the channel furrows are shed downstream. For larger wall wave amplitudes, vortices remain inside the furrows and exhibit periodic oscillations and topological changes. We present a phase diagram in terms of wall amplitude and driving pressure gradient separating different flow regimes. Our simulations establish the optimum wall amplitude and period leading to an unsteady flow at the minimum pressure gradient. The results are important for designing laminar heat/mass exchangers utilizing unsteady flows for enhancing transport processes.
Effect of spatial correlation on MMSE-based interference alignment in a multiuser MIMO MB-OFDM system (2012)

In this paper, we investigate the impact of antenna spatial correlation on the performance of K-user MIMO interference channel, in which interference alignment technique is employed to align all interferences at receivers. In order to improve the sum-rate and BER performances of the system in low SNR regimes the MMSE-based interference alignment algorithm is deployed. This paper considers a multiuser MIMO UWB system based on MB-OFDM (Multiband-Orthogonal Frequency Division Multiplexing) with two independent data streams per user and focuses mainly on spatial correlation among transmit and receive antennas. The simulation results confirm the superior BER performance of the MMSE-based interference alignment in the MIMO channels with less spatial correlation.
Synthetic Riboswitches That Induce Gene Expression in Diverse Bacterial Species (2010)

We developed a series of ligand-inducible riboswitches that control gene expression in diverse species of Gram-negative and Gram-positive bacteria, including human pathogens that have few or no previously reported inducible expression systems. We anticipate that these riboswitches will be useful tools for genetic studies in a wide range of bacteria.
ChemInform Abstract: Meta‐Topolin, a Highly Active Aromatic Cytokinin from Poplar Leaves ( Populus x canadensis Moench., cv. Robusta). (1997)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ROS Induces Anthocyanin Production Via Late Biosynthetic Genes and Anthocyanin Deficiency Confers the Hypersensitivity to ROS-Generating Stresses in Arabidopsis (2017)

Anthocyanins are known to have antioxidant activities. Their accumulation can be triggered by many chemical and environmental factors, including reactive oxygen species (ROS). However, the mechanism of ROS-induced anthocyanin accumulation and the role of anthocyanins in the response of Arabidopsis (Arabidopsis thaliana) to different stresses are largely unknown. Here, we study the cross-regulation between ROS and anthocyanin production. Ten Arabidopsis mutants covering the main anthocyanin regulatory and biosynthetic genes are systematically analyzed under ROS-generating stresses. We find that ROS triggers anthocyanin accumulation by up-regulating the anthocyanin late biosynthetic and the corresponding regulatory genes. The anthocyanin-deficient mutants have more endogenous ROS and are more sensitive to ROS-generating stresses while having decreased antioxidant capacity. Supplementation with cyanidin makes them less susceptible to ROS, with increased anthocyanin and reduced ROS accumulation. In contrast, pap1-D, which overaccumulates anthocyanins, shows the opposite responses. Gene expression analysis reveals that photosynthetic capacity is more impaired in anthocyanin-deficient mutants under high-light stress. Expression levels of ROS-scavenging enzyme genes are not correlated with the radical-scavenging activity in different mutants. We conclude that ROS are an important source signal to induce anthocyanin accumulation by up-regulating late biosynthetic and the corresponding regulatory genes and, as a feed-back regulation, anthocyanins modulate the ROS level and the sensitivity to ROS-generating stresses in maintaining photosynthetic capacity.