gebhart/patrepeval huggingface dataset:
Nature of the catalytically inactive cobalt hydride formed upon hydrogenation of aromatic substrates. Structure and characterization of the binuclear cobalt hydride [{iso-Pr2P(CH2)3PPr-iso2}Co]2(H)(.mu.-H)3 (1991)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNature of the catalytically inactive cobalt hydride formed upon hydrogenation of aromatic substrates. Structure and characterization of the binuclear cobalt hydride [{iso-Pr2P(CH2)3PPr-iso2}Co]2(H)(.mu.-H)3Michael D. Fryzuk, Jesse B. Ng, Steven J. Rettig, John C. Huffman, and Klaus JonasCite this: Inorg. Chem. 1991, 30, 10, 2437–2441Publication Date (Print):May 1, 1991Publication History Published online1 May 2002Published inissue 1 May 1991https://pubs.acs.org/doi/10.1021/ic00010a039https://doi.org/10.1021/ic00010a039research-articleACS PublicationsRequest reuse permissionsArticle Views449Altmetric-Citations16LEARN 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-AlertscloseSupporting Info (1)»Supporting Information Supporting Information Get e-Alerts
An architecture to support communities of interest using directory services capabilities (2003)

Directory services provide a mechanism to describe internal resources that can be dynamically discovered and used, and are increasingly being adopted by organizations. Despite being in an era of extensive interorganizational collaboration, relatively little attention has been given to extending directory services across organizational boundaries. In particular, resources described using directory services are either (a) constrained by description possibilities or (b) cannot be widely understood due to idiosyncratic description mechanisms. Thus, current directory services approaches are not well suited for the information requirements of groups of individuals spanning organizational boundaries: communities of interest (COIs). A COI is a virtual community that benefits from electronic communication, especially by the ability to provide structured descriptions of relevant resources. This paper describes a new approach to support COIs through directory services by enabling autonomous entities to provide structured, evolutionary descriptions of members and resources while retaining directory services' core strength: structured, semantically coherent descriptions of resources. The requirements architecture is derived, a walkthrough of the architectural elements is given, and a research prototype is briefly described.
Observations of the Ultra-compact X-Ray Binary 4U 1543-624 in Outburst with <i>NICER</i>, <i>INTEGRAL</i>,<i> Swift</i>, and ATCA (2019)

© 2019. The American Astronomical Society. All rights reserved.. We report on X-ray and radio observations of the ultra-compact X-ray binary 4U 1543-624 taken in August 2017 during an enhanced accretion episode. We obtained Neutron Star Interior Composition Explorer (NICER) monitoring of the source over a ∼10 day period during which target-of-opportunity observations were also conducted with Swift, INTErnational Gamma-Ray Astrophysics Laboratory (INTEGRAL), and the Australia Telescope Compact Array. Emission lines were measured in the NICER X-ray spectrum at ∼0.64 keV and ∼6.4 keV that correspond to O and Fe, respectively. By modeling these line components, we are able to track changes in the accretion disk throughout this period. The innermost accretion flow appears to move inwards from hundreds of gravitational radii (R g = GM/c 2) at the beginning of the outburst to &lt;8.7 R g at peak intensity. We do not detect the source in radio, but are able to place a 3σ upper limit on the flux density at 27 μJy beam-1. Comparing the radio and X-ray luminosities, we find that the source lies significantly away from the range typical of black holes in the - plane, suggesting a neutron star primary. This adds to the evidence that neutron stars (NSs) do not follow a single track in the - plane, limiting its use in distinguishing between different classes of NSs based on radio and X-ray observations alone.
Insecticide Resistance After Silent Spring (2012)

Combating insecticide resistance is a continual challenge for the preservation of both traditional and transgenic crops.
<title>Design of a dataway processor for a parallel image signal processing system</title> (1995)

Recently, demands for high-speed signal processing have been increasing especially in the field of image data compression, computer graphics, and medical imaging. To achieve sufficient power for real-time image processing, we have been developing parallel signal-processing systems. This paper describes a communication processor called 'dataway processor' designed for a new scalable parallel signal-processing system. The processor has six high-speed communication links (Dataways), a data-packet routing controller, a RISC CORE, and a DMA controller. Each communication link operates at 8-bit parallel in a full duplex mode at 50 MHz. Moreover, data routing, DMA, and CORE operations are processed in parallel. Therefore, sufficient throughput is available for high-speed digital video signals. The processor is designed in a top- down fashion using a CAD system called 'PARTHENON.' The hardware is fabricated using 0.5-micrometers CMOS technology, and its hardware is about 200 K gates.
High-temperature operation and thermal analysis of InGaAlP-based oxide-confined red VCSELs (2003)

We successfully fabricated high-performance oxide-confined red VCSELs. A low threshold current of 0.5 mA and an extremely high maximum CW lasing temperature of 75C were achieved with a room-temperature lasing wavelength of 666 nm. This low-threshold and high-temperature operation was realized, because the oxide-confined structure is advantageous for making smaller devices, compared to the proton-implanted structure.
Supplementary Figure 3 from Recruitment of Phosphorylated NPM1 to Sites of DNA Damage through RNF8-Dependent Ubiquitin Conjugates (2023)

Supplementary Figure 3 from Recruitment of Phosphorylated NPM1 to Sites of DNA Damage through RNF8-Dependent Ubiquitin Conjugates
A Perspective on Low-Temperature Water Electrolysis – Challenges in Alkaline and Acidic Technology (2018)

Water electrolysis is considered as an important technology for an increased renewable energy penetration. This perspective on low-temperature water electrolysis joins the dots between the interdisciplinary fields of fundamental science describing physicochemical processes, engineering for the targeted design of cell components and the development of operation strategies. Within this aim, the mechanisms of ion conduction, gas diffusion, corrosion and electrocatalysis are reviewed and their influence on the optimum design of separators, electrocatalysts, electrodes and other cell components are discussed. Electrocatalysts for the water splitting reactions and metals for system components are critically accessed towards their stability and functionality. On the basis of the broad scientific analysis provided, challenges for the design of water electrolyzers are elucidated with special regard to the alkaline or acidic media of the electrolyte.
A PmrB-Regulated Deacetylase Required for Lipid A Modification and Polymyxin Resistance in Acinetobacter baumannii (2015)

Emerging resistance to "last-resort" polymyxin antibiotics in Gram-negative bacteria is a significant threat to public health. We identified the Acinetobacter baumannii NaxD deacetylase as a critical mediator of lipid A modification resulting in polymyxin resistance and demonstrated that naxD is regulated by the sensor kinase PmrB. This represents the first description of a specific PmrB-regulated gene contributing to polymyxin resistance in A. baumannii and highlights NaxD as a putative drug target to reverse polymyxin resistance.
Fast FIR filtering algorithms based on overlapped block structure (2002)

The concept of overlapped block digital filtering is introduced, and the conditions for shift-invariant operation are derived. Two special types of overlapped block structures which can be used to realized finite impulse response (FIR) filters are discussed. Their efficient implementation based on fast short-length linear convolution algorithms and discrete Fourier transform (DFT) are described.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
New memory model for humanoid robots - introduction of co-associative memory using mutually coupled chaotic neural networks (2006)

Personal robots, which are expected to become popular in the future, are required to be active in joint work and community life with humans. Therefore, we have been developing new mechanisms and functions for a humanoid robot that has the ability to express emotions and to communicate with humans in a human-like manner. In 2004, we introduced the "Behavior Model" and "Consciousness Model" to the robot mental model so that the robot generated various kinds of behavior and an object of the robot's behavior became clear. We implemented the mental model in the emotion expression humanoid robot WE-4RII (Waseda Eye No.4 Refined II). Also, we have been studying a system of multiple harmonic oscillators (neurons) interacting via chaotic force since 2002. Each harmonic oscillator is driven by chaotic force whose bifurcation parameter is modulated by the position of the harmonic oscillator. In this paper, we propose an associative memory model using mutually coupled chaotic neural networks for generating an optimum behavior to a stimulus. We implemented this model in the emotional expression humanoid robot WE-4RII (Waseda Eye No.4 Refined II).
Improved sensitivity and temporal resolution in perfusion FMRI using velocity selective inversion ASL (2018)

VSI pulses can be very beneficial for perfusion weighted functional MRI because of their tracer kinetic characteristics, which allow a faster acquisition rate while maintaining an efficient labeling input function.
First Report of Bacterial Blight of Mulberries Caused by Pseudomonas syringae pv. mori in the Eastern Anatolia Region of Turkey (1999)

During spring 1999, a severe bacterial blight disease was observed on white mulberry (Morus alba L.) trees grown in the Erzincan, Erzurum, and Artvin provinces in the eastern Anatolia region of Turkey. Initial symptoms appeared as small, water-soaked spots on leaves and shoots. The spots eventually expanded and resulted in dark brown to black, elongated, stripe-like lesions on shoots. Diseased leaves wilted at the twig tips and later died. Disease incidence was close to 100% in the regions surveyed. Fluorescent bacteria were isolated consistently from lesions on diseased leaves and shoots on King's medium B. Morphological and biochemical characteristics of 16 presumptive strains tested were rod-shaped, aerobic, gram negative, oxidase negative, and catalase and levan positive. None of the strains reduced nitrate or hydrolyzed gelatin. All strains were confirmed as Pseudomonas syringae by gas-chromatography fatty acid methyl ester (GC-FAME) analysis, with a similarity index ranging from 0.82 to 0.94. The pathogen was identified as P. syringae pv. mori based on pathogenicity tests performed by spray-inoculating healthy leaves (M. alba cv. Beyaz Dut) on 1-year-old host twigs with suspensions of 10<sup>8</sup> CFU/ml each strain (2). Inoculated plants and sterile water-sprayed controls were maintained in a greenhouse at 18 to 28°C. Plants were covered with polyethylene bags for 48 h after inoculation. Within 7 to 10 days, necrotic spots typical of those found in the nursery were observed on inoculated leaves. No symptoms were seen on control plants. The pathogen was reisolated from lesions on inoculated leaves. Recovered strains were identical to initial strains, based on morphological and biochemical tests and GC-FAME analysis. To our knowledge, the occurrence and incidence of this disease in different geographic regions of Turkey, except the central Anatolia and Aegean regions, have not been studied (1). This is the first report of bacterial blight of mulberries at high incidence in the eastern Anatolia region of Turkey. References: (1) K. Türkolu and Y. E. Öktem. Plant Prot. Bull 13:19, 1973. (2) J. M. Young et al. N. Z.J. Agric. Res. 21:159, 1978.
ChemInform Abstract: Carbon—Fluorine Bond Activation for the Synthesis of Functionalized Molecules (2015)

Abstract Review: [39 refs.
Carotenogenesis Up-regulation in Scenedesmus sp. Using a Targeted Metabolomics Approach by Liquid Chromatography−High-Resolution Mass Spectrometry (2011)

Carotenoids have potent antioxidant activity as well as therapeutic value, and their formation has been seen to be induced in algae by stress, including high-salt culture conditions. A differential profiling of carotenoids was conducted using a targeted metabolomics approach with accurate mass data generated by liquid chromatography-electrospray-time-of-flight (LC-ESI-TOF) mass spectrometry followed by postacquisition filtering based on isotope patterns and mass defects to detect carotenoids up-regulated in Scenedesmus sp. exposed to high-salt conditions. Algal cultures treated with high concentrations of sodium acetate or sodium chloride were found to cause an increase in various carotenoids. On the basis of differential analysis, astaxanthin and canthaxanthin increased upon salt treatment. Astaxanthin, in its free form and as fatty acid esters, was seen to increase in Scenedesmus sp. using accurate mass MS. A few other carotenoid compounds increased upon salt treatment, including echinenone and adonirubin, involved in the pathway of astaxanthin biosynthesis from β-carotene, as well as isomers of astaxanthin and canthaxanthin. A time course study of acetate treatment was done to observe the time-dependent up-regulation of carotenogenesis.
An Increase in Endothelial Intracellular Calcium and F‐Actin Precedes the Extravasation of Interleukin‐2‐Activated Lymphocytes (1998)

ABSTRACT Objective : Interleukin‐2 (IL‐2) induces protein leakage from the microcirculation and activates lymphocytes; yet it is unclear how it alters endothelial barrier function. Here, we report of a new continuous monitoring system that allows for the continuous measurement and correlation of endothelial calcium, permeability to albumin, and extravasation of lymphocytes. Methods : IL‐2 activated lymphocytes (IL‐2 LYMPH) or unstimulated lymphocytes (LYMPH) were co‐incubated with human microvascular endothelial cells (HMVEC). Endothelial albumin permeability, lymphocyte extravasation, intracellular calcium mobilization, and f‐actin distribution were examined using a new continuous monitoring system. Results : The clearance rate of fluorescein isothiocyanate‐labeled‐human serum albumin (FITC‐HSA) in the presence of IL‐2 LYMPH peaked at 20 minutes, whereas the clearance rate of LYMPH peaked at 40 minutes. Approximately 40 minutes after the peak in the clearance rate to albumin, extravasation of carboxyfluorescein‐labeled lymphocytes was detected. Peak clearance rates for the extravasation of IL‐2 LYMPH occurred at approximately 40 minutes after the addition of the lymphocytes to the HMVEC, whereas the peak clearance rate for the LYMPH occurred at 60 minutes after their addition. Both FITC‐HSA and lymphocyte extravasation were measured concurrent to endothelial intracellular calcium mobilization by FURA‐2. There was an increase in calcium activation after the addition of IL‐2 stimulated lymphocytes (71 ± 5.1 nmol/L to 185 ± 18.9 nmol/L) compared with unstimulated lymphocytes (71 ± 5.1 nmol/L to 110 ± 12.2 nmol/L). The addition of IL‐2 had little or no effect on endothelial actin, whereas the unstimulated lymphocytes and, to a greater extent, IL‐2 LYMPH increased the presence of transversing stress fibers and decreased peripheral actin. Conclusions : The findings reported here suggest that the permeability and extravasation events that occur upon addition of lymphocytes proceeds by a calcium‐ and actin‐dependent mechanism and that incubation of lymphocytes with IL‐2 enhances normal lymphocyte mechanisms of extravasation.
Effectively minimizing redundant Internet streaming traffic to iOS devices (2013)

The Internet has witnessed rapidly increasing streaming traffic to various mobile devices. In this paper, we find that for the popular iOS based mobile devices, accessing popular Internet streaming services typically involves about 10% - 70% unnecessary redundant traffic. Such a practice not only overutilizes and wastes resources on the server side and the network (cellular or Internet), but also consumes additional battery power on users' mobile devices and leads to possible monetary cost. To alleviate such a situation without changing the server side or the iOS, we design and implement a CStreamer prototype that can transparently work between existing iOS devices and media servers. We also build a CStreamer iOS App to enable end users to access Internet streaming services via CStreamer. Experiments conducted based on this prototype running on Amazon EC2 show that CStreamer can completely eliminate the redundant traffic without degrading user's QoS.
3 kW L band mode S solid state transmitter (STX2000) (2003)

This paper describes a L band solid state pulsed transmitter which has been developed to equip a new mode S station for air traffic control in the frame of the programme POEMS (Pre-Operational European Mode S Station). The STX2000 transmitter was designed with the new available technologies to meet the mode S requirements defined by the International Civil Aviation Organisation (ICAO) but it is also compatible with the present air traffic communication system. Compared to the old generation, it typically delivers more power (3 kW peak at 1030 MHz) to a 2 channel rotating antenna: sum channel (directional propagation) and control channel (omnidirectional propagation) with the capability of a dynamic output power attenuation (0 dB to 12 dB) in order to modify the radar range according to the aircraft position. The maximum 2400 mode S interrogations per second can be transmitted on the sum channel with a duty cycle which can reach 64% during 4.8 ms (96 consecutive made S interrogations). Regarding the air traffic control application, a precise safety analysis defined tests that have to be run in operation to report any failure which may affect the system performance and to protect the transmitter itself (for instance, output RF transistor junction temperature measurements).
An intelligent vehicle architecture for automated transportation in cities (2001)

This paper presents the computer and sensor architecture of a new vehicle and the management system at the core of a new urban transport system now under development at INRIA. The system is operational since june 2001 with 5 electric vehicles developed in cooperation with Yamaha.
Interferon induced increases in c-myc expression in a human breast carcinoma cell line. (1992)

Previous studies from our laboratory have indicated that interferon-gamma inhibits the growth of a human breast carcinoma cell line, MDA 468. We measured steady state levels of c-myc mRNA to determine if the antiproliferative effect of IFN-gamma was mediated by changes in the expression of this proto-oncogene. C-myc message levels increased after 24 hours of IFN treatment, peaked at 48 hours, but remained elevated through 96 hours of treatment. The increase in c-myc mRNA was observed with as little as 10 U/ml of IFN-gamma. The stability of mRNA was enhanced in interferon treated cells. These data suggest that IFN-gamma increased expression of c-myc mRNA, but decreased cell growth, and point out the complexities of the relationship of the expression of this protooncogene to cell growth.
Wing leading-edge design concepts for airbreathing hypersonic waveriders (1994)

Wing leading-edge structural concepts are considered in this article for a specific Mach 5 waverider cruise vehicle. Design tradeoffs, such as making the leading edges sharp enough for acceptable aerodynamic and propulsion efficiency, yet blunt enough for acceptable aerodynamic heating, are discussed. Aerodynamic heating distributions are calculated for two locations on the leading edge of the vehicle. Several structural concepts are discussed and a particular concept is studied. Temperature and thermal stress distributions are calculated for a simple wing leading-edge concept consisting of an uninsulated hot structure. Techniques for reducing thermal stresses are discussed.
AEP unified power flow controller performance (1999)

The installation of the world's first unified power flow controller (UPFC) has been completed and a series of commissioning tests were conducted at the Inez Substation of American Electric Power (AEP) in eastern Kentucky. The project is a collaborative effort between AEP, the Westinghouse Electric Corporation, and the Electric Power Research Institute (EPRI). Comprising two /spl plusmn/160 MVA voltage-sourced GTO-thyristor-based inverters, this installation is the first large-scale practical demonstration of the UPFC concept, and its completion is a significant milestone in the progress of power electronics technology for flexible AC transmission system (FACTS). This paper briefly reviews the main features of the Inez installation and discusses the operation of the equipment. A collection of measured performance characteristics is presented to illustrate the unique capabilities of the UPFC. These dynamic measurements were made in the course of commissioning, and they graphically illustrate the ability of the UPFC to independently control the real and reactive power on a transmission line, while also regulating the local bus voltage. The results include a demonstration of the series inverter at Inez, operating in stand-alone mode. This test constitutes the first practical large-scale demonstration of the static synchronous series compensator (SSSC) concept.