gebhart/patrepeval huggingface dataset:
A Path from Device-to-Device to UAV-to-UAV Communications (2020)

As of today, UAV-to-UAV communication standards do not exist. IEEE VTS recently established a working group, IEEE P1920.2 to fill this gap. UAV-to-UAV communications can be established in three different ways: using satellite communications (SATCOM), cellular networks (4G or 5G), or direct UAV-to-UAV communications such as WiFi or Dedicated Short Range Communications (DSRC) without any infrastructure support. Each has its own advantages and disadvantages. This paper focusses on cellular network supported strategy. It outlines how some of the important concepts of Device-to-Device communications can be extended to UAV-to-UAV communications.
Authentication of JPEG Images on the Blockchain (2018)

Image authentication importance increases as image acquisition becomes easier with the help of new technologies. Today, almost any phone has a camera with decent performances and sharing images is encouraged by social media. Image tampering is also decreasing in difficulty because of the advances in image editing software. Today's signature-based image authentication techniques rely on storing the image signature until the authentication is needed. This is a disadvantage because the storage support is usually unique, controlled by one entity and could fail. Also, this centralized approach is not fundamentally trustworthy. To solve these problems, the paper proposes a signature-based image authentication method resistant to JPEG compression which makes use of new blockchain technology to store the image signature. With this method, the signature is stored in a decentralized network, significantly increasing the security.
Differential Competition with Cytotoxic Agents: An Approach to Selectivity in Cancer Chemotherapy (1979)

An approach to increasing the selectivity of cancer chemotherapeutic agents is presented in which noncytotoxic competitive substrates are used to discern the differences in structural requirements for transport of cytotoxic agents between tumor cells and a sensitive host tissue, the hematopoietic precursor cells of the bone marrow. Examples are given for two such systems, one responsible for the transport of nucleosides and another for the transport of amino acids. Cytidine is twice as effective in reducing the toxicity of showdomycin for murine bone marrow cells in culture as it is for murine L1210 leukemia cella. Conversely, homoleucine is twice as effective in reducing the toxicity of melphalan for L1210 cells as it is for bone marrow cells. These observations can serve as a basis for the development of bone marrow protective agents and for the design of cytotoxic agents that may be preferentially transported into tumor cells.
The fellow eye in retinal detachment: findings from the Scottish Retinal Detachment Study (2011)

Rhegmatogenous pathology in the fellow eye represents an important threat to vision. Fellow-eye detachments are more common in pseudophakic individuals and those with a more myopic refractive error. Fellow-eye RRD has a greater likelihood of prompt presentation.
Dynamic evolution of clonal epialleles revealed by methclone (2014)

We describe methclone, a novel method to identify epigenetic loci that harbor large changes in the clonality of their epialleles (epigenetic alleles). Methclone efficiently analyzes genome-wide DNA methylation sequencing data. We quantify the changes using a composition entropy difference calculation and also introduce a new measure of global clonality shift, loci with epiallele shift per million loci covered, which enables comparisons between different samples to gauge overall epiallelic dynamics. Finally, we demonstrate the utility of methclone in capturing functional epiallele shifts in leukemia patients from diagnosis to relapse. Methclone is open-source and freely available at https://code.google.com/p/methclone .
OVER-EXPRESSION OF INDUCIBLE NITRIC OXIDE SYNTHASE IN ETHANOL-INDUCED FATTY LIVERS AFTER TRANSPLANTATION: ITS RELATION TO MITOCHONDRIAL DYSFUNCTION AND GRAFT INJURY (2010)

Rehman, H.1; Ramshesh, V. K.1; Theruvath, T. P.1; Lemasters, J. J.1; Zhong, Z.2 Author Information
A 24-Gb/s source-series terminated driver with inductor peaking in 28-nm CMOS (2012)

We designed and tested a 24-Gb/s source-series terminated (SST) driver in 28-nm CMOS. The driver is composed of four segments with different weights to achieve an adjustable tap-weight finite-impulse-response (FIR) filter. The driver consists of nine slices, each of which contains four driver units. Each driver unit has a minimum-sized output stage regardless of the tap weight to reduce the power consumption of the preceding pre-driver stages. Series inductors connected to the output terminal of the driver are used to form a π-network circuit to enhance the bandwidth. The driver consumes 27.8 mW off a 0.85-V single supply. The total output jitter is 14.9 ps, which includes an input jitter of 11.1 ps. The core area is 330 × 330 μm2 with bumps.
114 Damage detection of the aluminum plate based on the vibration measurement using laser excitation (2014)

This paper proposes a health monitoring system for damage detection on plate structures based on the vibration measurement using laser excitation. Ideal impulse force can be applied to a plate by laser excitation. By this ideal impulse force, vibration measurement can be accomplished in wide frequency range. Mode shape is locally changed at the damaged position. In this study, mode shapes are extracted through the vibration measurement using two LDVs. Then, the location of damage is identified by applying wavelet transform to the mode shapes because the wavelet transform can detect a local change of the mode shapes.
Thermal Stability of Interconnect of TiN/Cu/TiN Multilayered Structure (1994)

The etching process for a Cu interconnect with self-aligned deposition of a thick sidewall film has been developed. This sidewall film acts as a barrier layer to prevent Cu from corrosion and oxidation during the subsequent process, such as formation of a passivation film. Using this etching process, the Cu interconnect of a TiN/Cu/TiN multilayered structure in a submicron feature is formed. Resistivity for the Cu interconnects is about 2 µ Ω ·cm, and it does not change on annealing up to 700° C. Diffusion of impurities into Cu is not observed up to 800° C annealing. Therefore, the structure of the Cu interconnect, that is, Cu covered with TiN and the thick sidewall film, is suitable for the ULSI process.
Breeding for Salinity Resistance in Crop Plants: Where Next? (1995)

Soil salinity is widely reported to be a major agricultural problem, particularly in irrigated agriculture, and research on salinity in plants has produced a vast literature. However, there are only a handful of instances where cultivars have been developed which are resistant to saline soils. Reasons for the lack of success in developing salt-resistant genotypes, and for the low impact that plant physiological research has made, are explored. We conclude that soil salinity has not yet become a sufficient agricultural problem, other than on a local scale, to make salt resistance a high priority objective for plant breeders. The limited success of simple selection, where this has been practised in breeding programs, can be accounted for by the fact that research has consistently shown salt resistance is a complex character controlled by a number of genes or groups of genes and involves a number of component traits which are likely to be quantitative in nature. We also conclude that the results of physiological research have been poorly marketed by physiologists and, understandably, have failed to impress plant breeders. We anticipate that the importance of salinity as a breeding objective will increase in the future. Our assessment of reports of the degradation of irrigation systems, together with projections of the future demands of irrigated agriculture, is that enhancing the salt resistance of at least some crops will be necessary. Salinity resistance will both help provide stability of yield in subsistence agriculture and, through moderating inputs, help limit salinisation in irrigation systems with inadequate drainage. It is emphasised that plant improvement and drainage engineering should be seen as partners and not alternatives. We conclude with a personal view of one way forward for developing salt-resistant genotypes, through the pyramiding of physiological characters.
Collagenase-Induced Degradation of Rat Tail Tendon (1998)

Abstract Tissue grafts are widely used in the repair of damaged tendons and ligaments. However, studies have shown that these grafts rapidly lose their strength shortly after implantation [1]. One possible mechanism for such behavior is the degradation of the extracellular matrix (ECM) due to the action of collagenase, a matrix metalloprotenase. Studies investigating the effects of water content and uniaxial tension on collagen degradation by bacterial collagenase have been performed in the rabbit model [2]. However, results obtained using bacterial collagenase cannot be extrapolated to mammalian collagenase due to their differences in activity. In addition, the limited availability of mammalian collagenase makes it difficult to use in the relatively large rabbit model. The purpose of this study was to replicate bacterial collagenase experiments [2] using rat tail tendons in order to determine the feasibility of using the smaller rat model to study the effects of mammalian collagenase on tendon degradation.
Characterization and Isolation of Structural Polypeptides in Haemagglutinating Encephalomyelitis Virus (1980)

Haemagglutinating encephalomyelitis virus (HEV), a member of the coronavirus family, was purified and analysed by SDS-polyacrylamide gel electrophoresis. It was shown to contain eight polypeptides, seven of which were glycosylated. They had apparent mol. wt. of 180,000 (GP 180), 130,0000 (GP 130), 120,000 (GP 120) 76,000 (GP 76), 64,000 (VP 64), 54,000 (GP 54), 32,000 (GP 32) and 31,000 (GP 31). Electrophoresis of virus samples dissociated under varying conditions showed that GP 54 and GP 120 could be interpreted as larger products of GP 31 and GP 32 and of GP 76, respectively. GP 76 also appeared as a dimer with a mol. wt. of 140,000 (GP 140) in the absence of beta-mercaptoethanol. Subviral particles, obtained by treatment with bromelain, banded at a slightly lower density than the intact virus and lacked surface projections. Analysis of these particles indicated that GP 180, GP 130 and GP 76 are associated with the virus projections. A small part of GP 31 and GP 32 also appeared to protrude from the lipid envelope since 20% of each molecule was sensitive to digestion. Two glycoproteins, GP 130 and GP 76, were solubilized with the detergent Triton X-100 and separated by rate zonal centrifugation. According to its activity-in indirect haemagglutination tests, GP 76 was considered to be a monovalent haemagglutinin subunit.
Caleidoscopio: Cuadernos de viaje por la Venezuela pretérita (II) (1993)

Resena critica sobre la exposicion Artistas y cronistas extranjeros en Venezuela (1825-1899), organizada por la Galeria de Arte Nacional, Caracas.
Fracture Initiation from Inclined Wellbores in Anisotropic Formations (1995)

ABSTRACT This paper presents a wellbore stability design code that can be used to optimally drill, complete and stimulate inclined wells. The design code was developed for the most general case where the borehole, in-situ stress, and rock property coordinate frames are totally independent of each other. It essentially consists of a three-dimensional linear elastic stress analysis in anisotropic formations. Although this particular paper is only limited to tensile failure, based on the minimum normal stress theory, the numerical model is also able to consider shear failure by involving a generalized three-dimensional anisotropic yield criterion. The design code enables the selection of the most optimum borehole orientation and wellbore fluid gradient to avoid fracture initiation. It is also useful in conducting sensitivity studies, particularly when the data is scanty. A remarkable finding by exercising such code was that fracture initiation is strongly dependent on the formation anisotropy; a contradiction to the current industry thinking.
A randomized controlled study comparing pain experience between a newly designed needle with a thin tip and a standard needle for oocyte aspiration (2011)

Oocyte aspiration performed with the newly designed thinner-tipped needle resulted in significantly less overall pain and less vaginal bleeding, without prolonging the retrieval procedure or influence the oocyte recovery rate, when compared with a SN. Clinicaltrials.gov: NCT00924885.
On-chip sine wave frequency multiplier for 40-GHz signal generator (2009)

This paper presents a novel signal frequency multiplier for very high speed applications. The proposed circuit is based on a simple but effective folding cell and it is able to generate an output at four times the frequency of the differential sine wave input. The circuit has been designed and optimized for a 40-nm CMOS technology and it has been fully simulated at the transistor level. Possible fabrication and timing mismatches are corrected with foreground calibration. Simulation results shows that the multiplier can provide an output signal at 40 GHz starting from a 10-GHz input signal consuming about 5 mW.
Priming Drivers before Handover in Semi-Autonomous Cars (2017)

Semi-autonomous vehicles occasionally require control to be handed over to the driver in situations where the vehicle is unable to operate safely. Currently, such handover requests require the driver to take control almost instantaneously. We investigate how auditory pre-alerts that occur well before the handover request impact the success of the handover in a dual task scenario. In a study with a driving simulator, drivers perform tasks on their phone while the car is in an autonomous mode. They receive a repeated burst audio pre-alert or an increasing pulse audio pre-alert preceding the standard warning for immediate handover. Results show that pre-alerts caused people to look more at the road before the handover occurred, and to disengage from the secondary task earlier, compared to when there was no pre-alert. This resulted in safer handover situations. Increasing pulse pre-alerts show particular promise due to their communication of urgency. Our detailed analysis informs the design and evaluation of alerts in safety-critical systems with automation.
Pancréatite aiguë compliquant la cholanglo-pancréatographie rétrograde endoscopique (CPRE) et la ponction dirigée sous échoendoscopie (2002)

La pancréatite aiguë est une préoccupation importante pour les endoscopistes qu’ils soient cathétériseurs ou échoendoscopistes, en raison de la gravité potentielle de cette complication. La fréquence et la sévérité de cette complication impose une information éclairée du patient. Certains facteurs de risque sont désormais bien établis et permettent de mettre en œuvre une prévention efficace. Néanmoins, l’absence de chimioprophylaxie efficace se fait toujours cruellement sentir, particulièrement dans certaines indications à risque élevé et un effort de recherche doit être effectué dans ce sens.
Glass Forming Ability and Mechanical Properties of Quinary Zr-Based Bulk Metallic Glasses (2007)

Quinary Zr-based alloy compositions with improved glass forming criteria have been sought and the glass forming ability (GFA), thermal stability and mechanical properties of these alloys have been investigated. Monolithic amorphous structure has been confirmed for all compositions in 5 mm rods prepared by a Cu-mold casting method. They also show large plastic strain maximum of about 12% under uniaxial compression test with yield stress of about 2000 MPa. The compressive plasticity of the cast rods was found to be influenced by the casting temperature to a great extent.
Extraordinary optical reflection resonances and bound states in the continuum from a periodic array of thin metal plates (2018)

The creation of artificial structures with very narrow spectral features in the terahertz range has been a long-standing goal, as they can enable many important applications. Unlike in the visible and infrared, where compact dielectric resonators can readily achieve a quality factor (Q) of 10<sup>6</sup>, terahertz resonators with a Q of 10<sup>3</sup> are considered heroic. Here, we describe a new approach to this challenging problem, inspired by the phenomenon of extraordinary optical transmission (EOT) in 1D structures. In the well-studied EOT problem, a complex spectrum of resonances can be observed in transmission through a mostly solid metal structure. However, these EOT resonances can hardly exhibit extremely high Q, even in a perfect structure with lossless components. In contrast, we show that the inverse structure, a periodic array of very thin metal plates separated by air gaps, can exhibit non-trivial bound states in the continuum (BICs) reflection resonances, with arbitrarily high Q, and with peak reflectivity approaching 100% even for a vanishingly small metal filling fraction. Our analytical predictions are supported by numerical simulations, and also agree well with our experimental measurements. This configuration offers a new approach to achieving ultra-narrow optical resonances in the terahertz range, as well as a new experimentally accessible configuration for studying BICs.
Unsteady Flow Computations of a Slat with a Blunt Trailing Edge (2000)

A detailed computational study of a high-lift configuration was conducted to understand the source mechanism behind a dominant acoustic tone observed in recent experiments on slat noise. The unsteady Reynolds-averaged Navier-Stokes computations focused on accurate simulation of the local flowfield of a slat with a blunt trailing edge. At a slat deflection angle of 30 deg relative to the main element, the simulations revealed the presence of strong vortex shedding behind the slat trailing edge. The resulting flow unsteadiness produced large-amplitude acoustic waves propagating away from the trailing-edge region. The local spatial resolution of the computed solution was sufficiently fine to capture both the near-field structure and propagation direction of the generated sound. The calculated shedding frequency is in good agreement with the measured acoustic frequencies obtained at NASA Langley Research Center's Low Turbulence Pressure Tunnel. In contrast, computational results at a slat deflection angle of 20 deg indicated that the shedding process was severely damped, and, therefore, in agreement with the corresponding acoustic measurements during the experiment. There was no evidence of a strong acoustic source near the trailing edge at this lower slat deflection.
Novel Models of Image Permutation and Diffusion Based on Perturbed Digital Chaos (2020)

Most of chaos-based cryptosystems utilize stationary dynamics of chaos for the permutation and diffusion, and many of those are successfully attacked. In this paper, novel models of the image permutation and diffusion are proposed, in which chaotic map is perturbed at bit level on state variables, on control parameters or on both. Amounts of perturbation are initially the coordinate of pixels in the permutation, the value of ciphered word in the diffusion, and then a value extracted from state variables in every iteration. Under the persistent perturbation, dynamics of chaotic map is nonstationary and dependent on the image content. The simulation results and analyses demonstrate the effectiveness of the proposed models by means of the good statistical properties of transformed image obtained after just only a single round.
A bi-dimensional model of a Cu-HBr laser plasma (2003)

Summary form only given. A two dimensional (radial and longitudinal) model is developed in order to simulate the behaviour of the plasma column constituting the active medium of a CuHBr laser. Species taken into account by the code are Cu, Ne, Br, H atoms and H/sub 2/, HBr and CuBr molecules. We take all this species and Cu/sub 3/Br/sub 3/ to assess their densities at the thermal equilibrium.
Kinetics of Transformation of 2-Ketopolyhydroxy Acids (1944)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTKinetics of Transformation of 2-Ketopolyhydroxy AcidsPeter P. Regna and B. P. CaldwellCite this: J. Am. Chem. Soc. 1944, 66, 2, 246–250Publication Date (Print):February 1, 1944Publication History Published online1 May 2002Published inissue 1 February 1944https://pubs.acs.org/doi/10.1021/ja01230a027https://doi.org/10.1021/ja01230a027research-articleACS PublicationsRequest reuse permissionsArticle Views102Altmetric-Citations13LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Web publishing: speed changes everything (1996)

Information on the Internet travels at the speed of light, but we've not yet felt the full impact of near-instantaneously transmitted information. To understand this impact, the perspective of media is important. From speed emerges interactivity, which, among other things, leads to hypertext. Except for specialists, few seem to have noticed the significance of this fact. Many research journals are gradually migrating online, in effect participating in a new medium. Because information is the lifeblood of professionals, any change will significantly affect readers as well as publishers. By understanding a new medium's effects, we can anticipate and exploit the change; however, we must also recognize that our ability to control such change is not straightforward.
Analysis of Quantitative Interactions between Two Species of Arbuscular Mycorrhizal Fungi,Glomus mosseaeandG. intraradices, by Real-Time PCR (2006)

Arbuscular mycorrhizal fungi (AMF) are obligate biotrophs, known to play an important role in ecological processes. Conventional light microscopy is the most common method used to detect their presence in planta, but this method fails to discern the presence of multiple AMF species and is not quantitative. These two factors are critically important in ecological studies, where the symbiotic contribution of each isolate needs to be defined. This paper describes the use of quantitative real-time PCR (qRT-PCR) as a detection system to address this issue. We used two Glomus spp., namely, G. intraradices and G. mosseae, to show that it is possible to study the interactions between these two isolates during the cocolonization of a single root system. Three different physiological studies were set up to assess how the interactions affected the occupancy of these fungi intraradically on a temporal basis. These treatments included saline and phosphorus stress, spatial distribution in the root zone, and preference for a particular host. qRT-PCR could prove a valuable tool in the area of AMF field ecology, where such data are critically important for defining the role of each species in the community structure.