gebhart/patrepeval huggingface dataset:
From research to practice: experiences engineering a production metadata database for a scale out file system (2014)

HP's Store All with Express Query is a scalable commercial file archiving product that offers sophisticated file metadata management and search capabilities [3]. A new REST API enables fast, efficient searching to find all files that meet a given set of metadata criteria and the ability to tag files with custom metadata fields. The product brings together two significant systems: a scale out file system and a metadata database based on LazyBase [10]. In designing and building the combined product, we identified several real-world issues in using a pipelined database system in a distributed environment, and overcame several interesting design challenges that were not contemplated by the original research prototype. This paper highlights our experiences.
Übergangsmetall-Methylen-Komplexe, X [1] Methylen-und Alkyl-Eisen-Komplexe aus Diazoalkanen. Molekülstruktur von μ-Carbonyl-μ-tert-butoxycarbonyl-methylen- bis [carbonyl(η5 -cyclopentadienyl)eisen] (Fe-Fe)/Transition Metal Methylene Complexes, X [1] Methylene and Alkyl Iron Complexes from Diazoalkanes. Molecular Structure of μ-Carbonyl-μ-tert-butoxycarbonyl-methylene- bis[carbonyl(η5-cyclopentadienyl)iron] (Fe-Fe) (1980)

Abstract The novel doubly bridged μ-methylene iron complexes μ-[C(H)CO 2 R]-μ-CO[(η 5 -C 5 H 5 )Fe(CO)] 2 (R = C 2 H 5 : 3a; R = t C 4 H 9 : 3b) have been synthesized by low-temperature photolysis of the corresponding alkyldiazoacetates 2a and 2b, resp., in the presence of [(η 5 -C 5 H 5 )Fe(CO) 2 ] 2 (1) and characterized by means of their analytical data and IR, 1 H NMR and mass spectroscopy. The geometry of 3b has been established by single crystal X-ray diffraction techniques. δ-Alkyl iron complexes of the type (η 5 -C 5 H 5 )Fe(CO) 2 [CHRRʹ] are accessible from the corresponding diazoalkanes N 2 = CRRʹ.
A novel variable power divider with continuous power division (2013)

Abstract In this article, a novel variable power divider based on varactor diodes is introduced and described in detail.Its main components are 3‐dB couplers, varactor diodes, and lumped elements. The proposed power divider is initially studied using the even‐ and odd‐mode techniques. Then, based on the derived equations and as an experimental verification, the proposed varactor‐based power divider operating at the center frequency of 2.5 GHz is fabricated and its performance is measured. It is shown that the power divider offers a maximum insertion loss of about 1.8 dB with a minimum dynamic range of over 6 dB in the frequency range from 2.3 to 2.7 GHz. The results are discussed. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1684–1686, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27603
FE Analysis on Deformation Mechanism of Strain-Rate-Sensitive Materials in Cylindrical Deep-Drawing with Combination Punch Speed and Blank Holder Control (2007)

In the sheet stamping of strain-rate-sensitive materials, the forming limit is governed by punch speed (SPD) as well as blank holding force (BHF). In previous research, a combination control algorithm for simultaneously varying SPD and BHF was proposed to achieve high-speed deep-drawing. In this study, finite element (FE) simulation is conducted for circular-cup deep-drawing with combination SPD/BHF control in order to reveal the deformation mechanism of the improvement of deep-drawability. The numerical results demonstrate that even though the blank material has a low strain-rate dependence at room temperature, the drawability and production rate can be improved by properly varying SPD/BHF. It is found, from the simulation results, that a relatively low SPD with a low BHF in the early forming stage causes less thickness reduction at the punch shoulder. In the middle-to-last stage, therefore, the remaining blank can be successfully drawn into the die cavity with SPD and BHF higher than the critical constant SPD and BHF.
Response : Transcription-Coupled DNA Repair (1993)

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Recovery of Gonadal Functions in the Adult Male Rat Following Cessation of Five‐month Daily Treatment with an LHRH Agonist (1984)

This study describes the recovery of various parameters of the pituitary-gonadal axis following five months of daily treatment of adult male rats with a potent LHRH (luteinizing hormone-releasing hormone) agonist. Two-month-old male rats were treated daily with either 250 ng or 1 microgram of [D-Ser(TBU)6, des-Gly-NH2(10)]LHRH ethylamide (LHRH-A) s.c. for five months. At the end of treatment, prostate weights were within normal limits and seminal vesicle weights were only slightly decreased. While normal values were found three months following cessation of treatment, it was observed, somewhat unexpectedly, that ventral prostate and seminal vesicle weights were increased by 66 and 54%, respectively, five months after cessation of treatment with the 1 microgram daily dose of LHRH-A. Immediately following the five-month treatment period with either dose of the LHRH agonist, basal testicular levels of pregnenolone, progesterone (P), 17-OH-progesterone (17-OH-P), androstenedione, testosterone, androstane-3 beta,17 beta-diol and androst-5-ene-3 beta, 17 beta-diol were decreased, while the concentrations of dihydrotestosterone (DHT), androstane-3 alpha, 17 beta-diol (3 alpha-diol) and 17 beta-estradiol were increased. Three months following cessation of treatment, all basal testicular steroid levels had returned to normal except pregnenolone, P, 17-OH-P and androstenedione, which were still reduced by 40 to 60%. Five months following cessation of treatment, on the other hand, basal levels of all testicular steroids were 40 to 200% increased in the animals having received either dose of the LHRH agonist. The testicular steroidogenic responsiveness was measured 2 hours following the subcutaneous administration of 10 micrograms oLH. Following five months of daily treatment with the LHRH agonist, the main findings are a decreased response of pregnenolone, P, 17-OH-P and androst-5-ene-3 beta, 17 beta-diol, and an increased DHT, 3 alpha-diol and androstane-3 beta, 17 beta-diol responsiveness. Three months post-treatment, on the other hand, particularly at the higher dose of LHRH agonist, there was an increased responsiveness of androstenedione, T, DHT and 3 alpha-diol, a finding which was maintained after two additional months of recovery. Degenerative changes were observed in most tubules following five months of LHRH-A treatment. While most tubules returned to normal five months later, some tubules still showed degenerative changes. Plasma LH measured by radioimmunoassay (RIA) was elevated after five months of treatment with the daily 1 microgram dose, but all other values were within normal limits.(ABSTRACT TRUNCATED AT 400 WORDS)
Solar Cells: Inverted Polymer Solar Cells with Reduced Interface Recombination (Adv. Energy Mater. 11/2012) (2012)

Due to intrinsic defects, zinc oxide nanoparticles may induce interfacial recombination when used as the electron extraction layer in an inverted polymer solar cell. On page 1333, Franky So, John R. Reynolds, and co-workers demonstrate that UV-ozone treatment is an effective way to passivate defects in ZnO NPs and reduce interface recombination in a polymer solar cell. As a result, the power conversion efficiency of inverted PDTGTPD: PC71BM cells is improved to 8.1%.
Steering acoustic intensity patterns generated by time-reversal, to move therapeutic particles in tissue. (2011)

Convection-enhanced delivery (CED) is used in clinical trials to enhance the distribution of therapeutic molecules directly injected into tissue. Recent time-reversal acoustics (TRA) experiments [Lewis et al., J. Acous. Soc. Am. 128 2335 (2010)] show potential to improve CED with the use of delivery of acoustic forces within the tissue. TRA was used to focus ultrasound at the location of a transducer placed within rodent brain. Methods have been proposed to modify the TRA signals to steer the high intensity spots to new sites within a refractive inhomogeneous region such as the brain. We compare theory and measurement for the non-linear interpolation scheme proposed by Raghavan et al. [J. Acous. Soc. Am. 128 2336 (2010)], first in inhomogeneous gel phantoms. We assess the accuracy as well as stability of control for intensity and placement of “hot spots.” Time permitting, we shall present results for hot spot control in brain tissue and the resulting ability to improve distribution of small molecules delivered into brain tissue by CED. The ability to reliably steer high intensity spots in inhomogeneous media will allow applications beyond enhancing CED and beyond medicine.
Super-polystyrene: a new class of engineering plastics with versatile properties (2000)

Abstract Many attempts to upgrade polystyrene have been made in the past. One of the last and most popular examples is the upgrading of polystyrene by stereo-controlled polymerization of styrene monomer, yielding a syndiotactic material. But the property profile of polystyrene can also be improved by stiffening the polymer chain with bulky groups. 1,1-Diphenylethylene (DPE) was selected as a monomer with such a bulky group and was copolymerized anionically with styrene to give an amorphous copolymer with a statistical chain structure which was called 'super-polystyrene'. In this paper the conditions of the anionic polymerization and the properties of the resulting materials are described. Depending on the DPE content, the glass transition temperature can be varied from 104°C to 180°C. Up to a DPE content of 15%, these styrene-DPE copolymers are miscible with GPPS as well as with syndiotactic polystyrene. Toughening of the transparent polymers was achieved with glass fibers and grafted rubber particles. Block copolymerization with minor amounts of butadiene yielded a tough and transparent polymer. Thermoplastic elastomers with an enhanced softening point having the block sequence S/DPE-b-Bu-b-S/DPE and S/DPE-b-EB-b-S/DPE were also prepared. Keywords: Styrene-diphenylethylene copolymerskinetic parameterspropertiesblendsS/DPE- butadiene block copolymers
Constrained Pseudo-Brownian Motion for Image Enhancement (2010)

The retinex theory of colour vision simulates certain features of the human visual system and is used as a method for image enhancement. Since its introduction in 1971 many flavours of retinex have been devised, which implement slight variations of the original concept. For example, Marini and Rizzi developed a retinex algorithm based on Brownian motion paths. However, while their approach delivers interesting results, it has a high computational complexity. We propose an efficient algorithm that generates pseudo-Brownian paths with a very important constraint: we can guarantee a lower bound to the number of visits to each pixel, as well as its average. We then present a retinex implementation that exploits the paths generated with this algorithm. In order to keep the number of visits per pixel low, we take a multi-scale approach: our path-based computation is performed at different scales of the input image and each result is averaged with the result obtained from larger scales. In doing so, we in effect combine the Brownian motion approach with the scale-space method of the McCann99 algorithm.In this paper we describe the details of our path generator, and we show some images processed with our retinex implementation compared with those obtained with the McCann99 retinex algorithm. The results show that, in general, the Brownian motion approach requires a smaller number of pixel comparisons per scale to achieve similar output images.
Biotransformation of Dydrogesterone by Cell Suspension Cultures of Azadirachta indica (2008)

Biotransformation of dydrogesterone (1) by using cell suspension cultures of Azadirachta indica yielded a metabolite 20R-hydroxy-9b ,10a-pregna-4,6-diene-3-one (2). The structure of this compound was deduced on the basis of various spectroscopic techniques.
Frame Structure Design and Analysis for Millimeter Wave Cellular Systems (2017)

The millimeter-wave (mmWave) frequencies have attracted considerable attention for fifth generation (5G) cellular communication as they offer orders of magnitude greater bandwidth than current systems. However, the medium access control (MAC) layer may need to be significantly redesigned to support the highly directional transmissions, and the demand for ultra-low latencies and high peak rates expected in mmWave communication. To address these challenges, we present a novel mmWave MAC layer frame structure with a number of enhancements, including flexible, highly granular transmission times, dynamic control signal locations, extended messaging, and the ability to efficiently multiplex directional control signals. Analytic formulas are derived for the utilization and control overhead as a function of control periodicity, number of users, traffic statistics, signal-to-noise ratio, and antenna gains. Importantly, the analysis can incorporate various front-end MIMO capability assumptions - a critical feature of mmWave. Under realistic system and traffic assumptions, the analysis reveals that the proposed flexible frame structure design offers significant benefits over designs with fixed frame structures similar to current 4G long-term evolution. It is also shown that the fully digital beamforming architectures offer significantly lower overhead compared with analog and hybrid beamforming under equivalent power budgets.
Voltage Multiplier Design for Harmonic Communication in Harvester Assisted Ultrahigh Frequency (UHF) Radio Frequency Identification(RFID) Systems (2021)

The development of low-cost environmental energy harvesters is opening new opportunities for harvester-assisted semipassive radio frequency identification (RFID) tags. In these systems, the tag to reader communication raises a design concern as it is the limiting factor of the maximum communication range. Harmonic communication is an option for enhancing this tag to reader communication in ultrahigh frequency RFID systems. In this work, different voltage multiplier (VM) configurations are evaluated at the simulation level to suggest VM design guides to increase the available harmonic power in harvesterassisted scenarios. The results show that single-ended topologies with the minimum number of stages are preferred. Regarding the diode, a proposed modified pchannel metal-oxide semiconductor (PMOS) diode has shown higher generated harmonic power than typical Schottky diodes.
ChemInform Abstract: Chelation‐Controlled Stannylacetylene Additions to β‐Alkoxy Aldehydes Promoted by Alkylaluminum Halide Lewis Acids. (1999)

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.
Drusen Detection and Quantification for Early Identification of Age Related Macular Degeneration using Color Fundus Imaging (2013)

Objective: To develop a method for detecting drusen and quantifying drusen size in macular region from standard color retinal images for early diagnosis of Age related Macular Degeneration (AMD).
Materials and methods: Color retinal images were used which were captured by Canon D60 non-mydriatic camera for genetic and epidemiology study. Local intensity distribution, adaptive intensity thresholding and edge information were used to detect potential drusen areas. For validation, we considered 50 images with various types of drusen. For the drusen area segmentation accuracy (DAA), 12 images were selected, and an expert grader marked the drusen regions in pixel level. We then quantified the areas and compute the sensitivity and specificity by comparing the drusen detected output images with the hand-labeled ground truth (GT) images.
Results: The proposed method detected the presence of any drusen with 100% accuracy (50/50 images). For drusen detection accuracy (pixel level), mean sensitivity and specificity values of 74.94% and 81.17%, respectively. For drusen subtypes we achieved 79.59% accuracy in intermediate drusen and 82.14% in soft drusen which is a highly significant result for early and intermediate AMD detection.
Conclusion: In this study, we applied a novel automated method for drusen detection and quantification which is ready to be used in initial screening of early stage of AMD and drusen area changes i.e., AMD progression. The method will also be highly suitable for telemedicine platforms in ophthalmology for selecting patient from rural areas using fundus imaging - for refereeing to an expert ophthalmologist.
Identification and measurement of pastes rheological properties — effects of water dissociation (1997)

International audience
A Spatial Modulation With Space-Phase Constellation for Spatially Correlated Channels (2017)

We design a spatial modulation (SM) scheme for spatially correlated channels under the constraints of a single radio frequency chain transmitter and open-loop transmission. To alleviate the performance degradation of the conventional SM in highly correlated channels, the proposed SM scheme adopts the antenna grouping and a new space-phase constellation, which is designed by considering the phase-only constraint and received symbol distance in fully correlated channels. In the simulation results, the proposed scheme achieves about 2.5-dB gain at bit error rate of <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$10^{-3}$ </tex-math></inline-formula> compared with the conventional SM in highly correlated channels.
Epidermal Growth Factor in Human Urine from Birth to Puberty* (1985)

The highest concentrations of epidermal growth factor (EGF) are found in urine, but the physiological role of urinary EGF is unknown. We studied human urinary EGF excretion, by measuring its concentration with a specific homologous RIA, in 265 healthy children from birth until age 16 yr. The absolute concentrations varied widely between individuals. Mean values were approximately 10 ng/ml in 1- to 30-day-old infants; 2.5-fold higher values were found in infants aged 2 to 12 months. During the second year there was a further rise to about 70 ng/ml, and urinary EGF excretion was in the same range in older subjects. The EGF/creatinine concentration ratio was less variable. The mean ratio increased 6-fold from birth to the second year of life. Thereafter, the EGF/creatinine ratio decreased gradually to one-third of the peak level at puberty. No sex difference was found.
The Effect of Post-prostatectomy Urinary Incontinence on Health-related Quality of Life in Patients with Prostate Cancer (2019)

The purpose of this study was to examine the degree of Health-Related Quality of Life (HRQoL), and determine the effect of Urinary Incontinence (UI) on HRQoL in patients after prostatectomy. Methods: The participants were 110 adults who had undergone radical prostatectomies at Severance Hospital in Seoul, Korea. The data of this crosssectional study were collected between April 10, 2015, and June 12, 2015. The questionnaire included demographic and disease-related characteristics, the International Consultation on Incontinence Questionnaire-Short Form (ICIQ-SF), and the King's Health Questionnaire (KHQ). Descriptive statistics and multiple linear regression were used. Results: The mean age was 66.277.24 years. The mean score of HRQoL was 47.37 (range 0~100). The lowest-ranked domains were "physical limitations" (M=51.21) and "role limitations" (M=49.85). The HRQoL was significantly different according to the number of post-operative day. HRQoL was significantly correlated with UI, and was affected by UI. The regression model of this study accounted for 70% of the HRQoL. Conclusion: UI might influence HRQoL in patients after prostatectomy. Nursing interventions with special consideration of UI are needed to improve their HRQoL.
Efficient dynamic routing in wide-area networks. (1999)

The tremendous growth of the global Internet has given rise to a variety of applications that require quality-of-service (QoS) beyond what is provided by the current best-effort IP packet delivery service. In addition, traditional static shortest-path routing offers little flexibility in managing the distribution of traffic in the network. Dynamic or QoS routing protocols offer the advantage of choosing paths that meet application QoS requirements and balance the load in the network. These benefits come at the cost, however, of additional consumption of computational and bandwidth resources at levels higher than conventional routing protocols. More specifically, dynamic routing performs poorly when the network state used to compute paths is out-of-date, requiring that network information be distributed very frequently to achieve good results. This dissertation undertakes a detailed study of dynamic and QoS routing with a focus on understanding and controlling the performance-overhead trade-offs inherent in these protocols. We develop a practically motivated model that clearly formulates dynamic routing in terms of a set of route computation algorithms, routing and update policies, and network and traffic configurations. The model is implemented in a custom-designed simulation environment that allows experimentation with a wide variety of configurations. We use the model and simulation environment to perform in-depth experiments that uncover the influences of a variety of policy and configuration parameters on the performance and resulting overheads. In particular, the evaluation focuses on the effects of out-of-date information about network state on routing performance. A significant contribution of this effort is a set of specific guidelines and observations that assist service providers in configuring the network and setting policies for dynamic or QoS routing. With the insights collected from the evaluation effort, the dissertation develops novel algorithms for reducing the computational overheads of QoS routing. These mechanisms allow precomputed QoS routes to efficiently capitalize on the latest state information available. As a result, precomputation is able to offer performance competitive with the much more costly on-demand computation policy. Finally, the dissertation introduces hybrid routing, a new routing scheme for IP networks that limits dynamic routing to a subset of the network traffic. By dynamically routing only long-lived flows, hybrid routing is able to improve the stability and efficiency of load-sensitive routing while also providing automated load-balancing capability that reacts to fluctuations in network traffic.
Isolation, Culture, and Characterization of Bacteriophages (2008)

Abstract Bacteriophages (phages) are viruses that infect bacteria. Phages are the most abundant biological entities on Earth, and have influential effects on every ecosystem. Phage genomes represent a vast gene pool from which bacteria can draw upon for rapid evolution. Since the co‐discovery of phages in 1915 by Frederick Twort and 1917 by Felix d'Herelle, their potential as subjects of laboratory research has been exploited to great effect. Phage research has resulted in important strides in biology, from the elucidation of the function of DNA and the discovery of messenger RNA to the study of basic molecular interactions and genetic regulation. These fascinatingly simple and diverse entities are also valuable as diagnostic tools, genetic screening vectors, and potential therapeutics. This article provides an overview of techniques essential for entering the world of bacteriophage study, and contains protocols for the propagation, maintenance, storage, and basic characterization of phages. Curr. Protoc. Essential Lab. Tech . 7:4.4.1‐4.4.33. © 2013 by John Wiley &amp; Sons, Inc.