gebhart/patrepeval huggingface dataset:
Micromanipulation using a microcoil array (2002)

A method of micromanipulation using a microcoil array is proposed. Active coils drive permanent magnets on a work platform. The magnets can push mechanical parts to perform 2-dimensional assembly. Three-dimensional operation may be achieved from 2D magnet motion when the permanent magnets are part of a closed loop spatial linkage. Manipulation on a 4 cm/spl times/4 cm coil array was tested. Based on this large scale experiment, we fabricated a microcoil array using IC-based processes. A 4/spl times/4 microcoil array with 8 turns per coil was fabricated. The chip area including bonding pads, is 3.6 mm/spl times/3.6 mm. The minimum current necessary to attract a magnet and its speed were evaluated. A 0.6 mm/spl times/0.6 mm/spl times/0.3 mm magnet moved at 79 mm/s. The top speed for a magnet to follow a square trajectory was evaluated, and it was demonstrated that a 1.1 mg magnet could push a 13.4 mg object out of microcoil array.
LONG-TERM ALTERNATE DAY STEROID THERAPY IN RENAL TRANSPLANTATION (1982)

Seventy-six adult renal allograft recipients were allocated 5 months post-transplantation to daily or alternate day maintenance methylprednisolone therapy. All 15 recipients of living related kidneys and 23 recipients of cadaver kidneys were placed on the alternate day regimen, while 38 patients with cadaveric grafts remained on daily methylprednisolone. In patients on alternate day methylprednisolone, serum creatinine concentrations, frequency of acute rejection episodes, and prevalence of chronic rejection were similar to those of patients on daily steroids. Furthermore, no differences were noted in the rate of loss of graft function between recipients of cadaver kidneys on daily versus alternate day steroids. There were no differences in body weight, blood pressure, degree of hyperglycemia, or hyperlipidemia between patients on the daily or alternate day schedules. However, the prevalence of clinical osteonecrosis and the rate of infectious complications requiring hospitalization were significantly decreased in patients on alternate day methylprednisolone. We conclude that alternate day methylprednisolone therapy is as effective as daily steroids for the maintenance of graft function in renal transplant recipients. The decreased incidence of osteonecrosis and the lower frequency of infectious complications represent a strong argument in favor of alternate day steroid therapy.
Cloud overbooking through stochastic admission controller (2014)

Cloud providers apply overbooking to increase utilization of data center resources, which is associated with the risk of overloading cloud resources. In this paper, we study an admission control technique that permits cloud overbooking with bounded probability of resource over-utilization. The objective is to achieve a specified quality-of-service related to the probability of resource over-utilization in an uncertain loading condition, while maintaining high resource utilizations. Our method relies on estimating the probability of over-utilization based on approximating the probability distribution of the total resource demand on hosts as Beta. We perform a qualitative study to investigate the efficiency of using our method on Google Compute Cluster where we disclose some empirical observations on how well the resource utilization can be estimated as Beta Distribution. We also report results on the performance of the stochastic admission controller by estimating the mean and the standard deviation of the usage data.
Spatially uniform enhancement of single quantum dot emission using plasmonic grating decoupler (2015)

We demonstrate a spatially uniform enhancement of individual quantum dot (QD) fluorescence emission using plasmonic grating decouplers on thin gold or silver films. Individual QDs are deposited within the grating in a controlled way to investigate the position dependency on both the radiation pattern and emission enhancement. We also describe the optimization of the grating decoupler. We achieve a fluorescence enhancement ~3 times higher than using flat plasmon film, for any QD position in the grating.
Multiuser MIMO Beamforming with Full-duplex Open-loop Training (2015)

In this paper, full-duplex radios are used to continuously update the channel state information at the transmitter, which is required to compute the downlink precoding matrix in MIMO broadcast channels. The full-duplex operation allows leveraging channel reciprocity for open-loop uplink training to estimate the downlink channels. However, the uplink transmission of training creates interference at the downlink receiving mobile nodes. We characterize the optimal training resource allocation and its associated spectral efficiency, in the proposed open-loop training based full-duplex system. We also evaluate the performance of the half-duplex counterpart to derive the relative gains of full-duplex training. Despite the existence of inter-node interference due to full-duplex, significant spectral efficiency improvement is attained over half-duplex operation.
Science requirements and the design of cabled ocean observatories (2006)

The ocean sciences are beginning a new phase in which scientists will enter the ocean environment and adaptively observe the Earth-Ocean system through remote control of sensors and sensor platforms. This new ocean science paradigm will be implemented using innovative facilities called ocean observatories which provide unprecedented levels of power and communication to access and manipulate real-time sensor networks deployed within many different environments in the ocean basins. Most of the principal design drivers for ocean observatories differ from those for commercial submarine telecommunications systems. First, ocean observatories require data to be input and output at one or more seafloor nodes rather than at a few land terminuses. Second, ocean observatories must distribute a lot of power to the seafloor at variable and fluctuating rates. Third, the seafloor infrastructure for an ocean observatory inherently requires that the wet plant be expandable and reconfigurable. Finally, because the wet communications and power infrastructure is comparatively complex, ocean observatory infrastructure must be designed for low life cycle cost rather than zero maintenance. The origin of these differences may be understood by taking a systems engineering approach to ocean observatory design through examining the requirements derived from science and then going through the process of iterative refinement to yield conceptual and physical designs. This is illustrated using the NEPTUNE regional cabled observatory power and data communications sub-systems.
Trusted sensors and remote sensing (2010)

Remote trusted operation is essential for many types of sensors in an even greater number of applications. It is often crucial to secure guarantees that a particular sensor sample is taken by a specific sensor at a particular time and stated location. We present the first generic system architecture and security protocol that provides low cost, low power, and low latency trusted remote sensing. The approach employs already known randomized challenges and public physically unclonable function with a new concept of interleaved operational and security circuitry.
Correction to Semibatch Terpolymerization of Ethylene, Propylene, and 5-Ethylidene-2-norbornene: Heterogeneous High-Ethylene EPDM Thermoplastic Elastomers (2021)

ADVERTISEMENT RETURN TO ISSUEPREVAddition/CorrectionNEXTORIGINAL ARTICLEThis notice is a correctionCorrection to Semibatch Terpolymerization of Ethylene, Propylene, and 5-Ethylidene-2-norbornene: Heterogeneous High-Ethylene EPDM Thermoplastic ElastomersGiuseppe LeoneGiuseppe LeoneMore by Giuseppe Leonehttp://orcid.org/0000-0001-6977-2920, Giorgia ZanchinGiorgia ZanchinMore by Giorgia Zanchinhttp://orcid.org/0000-0003-0161-4963, Rocco Di GirolamoRocco Di GirolamoMore by Rocco Di Girolamohttp://orcid.org/0000-0001-8815-2997, Fabio De StefanoFabio De StefanoMore by Fabio De Stefanohttp://orcid.org/0000-0002-5724-2292, Christian LorberChristian LorberMore by Christian Lorberhttp://orcid.org/0000-0003-1361-5373, Claudio De RosaClaudio De RosaMore by Claudio De Rosahttp://orcid.org/0000-0002-5375-7475, Giovanni RicciGiovanni RicciMore by Giovanni Riccihttp://orcid.org/0000-0001-8586-9829, and Fabio BertiniFabio BertiniMore by Fabio Bertinihttp://orcid.org/0000-0003-0199-4767Cite this: Macromolecules 2021, 54, 3, 1574Publication Date (Web):January 25, 2021Publication History Published online25 January 2021Published inissue 9 February 2021https://pubs.acs.org/doi/10.1021/acs.macromol.1c00105https://doi.org/10.1021/acs.macromol.1c00105correctionACS PublicationsCopyright © 2021 American Chemical Society. This publication is available under these Terms of Use. Request reuse permissions This publication is free to access through this site. Learn MoreArticle Views751Altmetric-Citations-LEARN 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 PDF (455 KB) Get e-Alertsclose Get e-Alerts
Characteristics of a Falling Liquid Film Flow Using Periodic Jetting Flow (2019)

This work tried to form a falling thin film by supplying liquid to the disk attached to the upper part of the device, rotating the disk and jetting liquid onto the wall surface in order to develop a new falling film evaporator without contamination. Heat transfer enhancement is expected by the surface renewal effect of unsteady and/or periodical flow due to the rotating disk with ditches. The influence of the shape and rotation speed of the disk on the flow of the falling thin film was investigated. Four kinds of rotating disk having small two or four ditches with a depth of 1 mm were used. The apparatus consists of a rotating disk, a cylindrical glass tube and a reservoir. An aqueous solution of uranine is supplied from the reservoir to the upper part of the rotating disk by a pump. The flow rate of the aqueous solution was 88 L/h, and the rotation speed of the disk was set at 200 or 300 rpm. The time-dependent flow condition was observed by irradiating a UV lamp from the side of the apparatus and photographing the front test section with the vertical length of 200 mm by a digital camera. The correlation between film thickness distribution and heat transfer characteristics suggested that thinner film thickness, nonuniform film thickness distribution with higher intensity due to large-scale waves, and higher circumferential velocity of liquid film were three major factors to enhance heat transfer.
Binaural room simulation (1993)

Research in binaural and spatial hearing is of particular interest to the Air Force. Applications in cockpit communication, target recognition, and aircraft navigation are being explored. This thesis examines human auditory localization cues and develops a mathematical model for the transfer function of a sound signal traveling from an isotropic point source through a rectangular room to both ears of a listener. Using this model as a guide, non-head coupled binaural sound signals are generated in a binaural room simulation. Reflection and attenuation cues included in the computer generated signals are varied in order to determine which cues enhance the listener's degree of extracranialization. Results of this research indicate that the addition of three or more attenuated reflections into a non-head coupled binaural signal provide the listener with a binaural sound that is localized extracranially.
Conception and Fabrication of GaAs Schottky Diodes for Mixers (2009)

Patients with ascending aortic aneurysm undergoing complex surgical procedures are at increased risk of early postoperative excessive blood loss. The aim of this study was to analyze safety and efficacy of routine transfusions of platelet (PLT) concentrates in reduction of hemorrhagic postoperative complications. The study involved 396 consecutive patients (289 males and 107 females) with the mean age of 55.9 ± 13.6 years who underwent elective operations for aortic aneurysms. They were divided retrospectively into two groups, without (group A; n = 123) or with the routine use of PLTs (group B; n = 273). PLTs were transfused intraoperatively just after completion of cardiopulmonary bypass. Twelve patients in group A (9.8%) and 10 (3.7%) in group B required re-thoracotomy due to hemorrhage (p = 0.027). Routine transfusions of PLT concentrates reduced postoperative incidence of excessive pericardial effusion from 24.1% in group A to 2.1% in group B (p = 0.002). In a consequence, significantly less units (p < 0.0001) of red blood concentrates and fresh frozen plasma were transfused in group B than in group A. The rates of other adverse events in the early postoperative period did not differ between groups. Patients with pericardial effusion required 6.3 ± 2.7 additional days of hospitalization due to surgical re-intervention. Neither blood transfusion-related infections nor adverse reactions were noted. In conclusion, routine intraoperative transfusions of PLT concentrates in patients with ascending aortic aneurysms significantly reduced a need for re-intervention due to both early bleeding and late cardiac tamponade.
Confinement of long-lived interlayer excitons in WS$_2$/WSe$_2$\n heterostructures (2020)

Interlayer excitons in layered materials constitute a novel platform to study\nmany-body phenomena arising from long-range interactions between quantum\nparticles. The ability to localise individual interlayer excitons in potential\nenergy traps is a key step towards simulating Hubbard physics in artificial\nlattices. Here, we demonstrate spatial localisation of long-lived interlayer\nexcitons in a strongly confining trap array using a WS$_{2}$/WSe$_{2}$\nheterostructure on a nanopatterned substrate. We detect long-lived interlayer\nexcitons with lifetime approaching 0.2 ms and show that their confinement\nresults in a reduced lifetime in the microsecond range and stronger emission\nrate with sustained optical selection rules. The combination of a permanent\ndipole moment, spatial confinement and long lifetime places interlayer excitons\nin a regime that satisfies one of the requirements for observing long-range\ndynamics in an optically resolvable trap lattice.\n
The FcRγ Chain Is Not Essential for Induction of Experimental Allergic Encephalomyelitis (EAE) or Anti-Myelin Antibody-Mediated Exacerbation of EAE (2005)

Macrophages are considered essential mediators in multiple sclerosis (MS) pathogenesis, presumably through myelin phagocytosis and release of inflammatory mediators. Macrophages and microglia express activating Fcgamma receptors (FcgammaRI and FcgammaRIII), which depend on the FcRgamma chain for surface expression and signaling. In MS lesions, crosslinking of FcgammaR by immunoglobulins (IgG) directed against myelin may enhance myelin phagocytosis and inflammation. We studied the role of FcgammaR and anti-myelin antibodies in MOG35-55-induced experimental allergic encephalomyelitis (EAE) in C57BL/6 mice, a model of MS-like disease. Incidence and severity of EAE were similar in FcRy chain-/- (FcRgamma-/-) and wild-type (wt) mice, albeit with delayed onset in FcRgamma-/- mice. This demonstrates that the FcRy chain is not essential for induction of EAE, but that FcRgamma signaling may contribute to the preclinical phase. The role of FcgammaR in antibody-mediated demyelination was addressed by injection of anti-myelin antibodies (Z12 mAb) at onset of MOG35-55-induced EAE. Injection of Z12 mAb rapidly reduced survival time in both wt and FcRgamma-/- mice, demonstrating that antibody-mediated exacerbation of EAE is independent of the FcRgamma chain. Interestingly, Z12-induced exacerbation of inflammation and demyelination persisted longer in wt than FcRgamma-/- mice, suggesting that IgG-FcgammaR interactions may contribute to a sustained pathologic effect of anti-myelin antibodies in the CNS.
Catalytic Asymmetric Dearomatization by Visible‐Light‐Activated [2+2] Photocycloaddition (2018)

Abstract A novel method for the catalytic asymmetric dearomatization by visible‐light‐activated [2+2] photocycloaddition with benzofurans and one example of a benzothiophene is reported, thereby providing chiral tricyclic structures with up to four stereocenters including quaternary stereocenters. The benzofurans and the benzothiophene are functionalized at the 2‐position with a chelating N ‐acylpyrazole moiety which permits the coordination of a visible‐light‐activatable chiral‐at‐rhodium Lewis acid catalyst. Computational molecular modeling revealed the origin of the unusual regioselectivity and identified the heteroatom in the heterocycle to be key for the regiocontrol.
<title>Observed precursor of pulsed radio waves</title> (1994)

Experimental and theoretical analysis on pulsed radio wave propagation measurements, obtained through a series of time domain experiments in open space as well as in a waveguide, indicate that the precursor or the very early wavefront onset, slightly above the noise level, propagates with a speed equal to the phase velocity. Since it is observable, it may be useful for radio messages. Basic principles and experimental support are presented.
Leader selection in multi-agent systems for smooth convergence via fast mixing (2012)

In a leader-follower multi-agent system (MAS), a set of leader nodes receive state updates directly from the network operator. The follower nodes then compute their states based on the inputs from the leader nodes. In this paper, we study the problem of selecting a set of leader nodes in order to minimize the time required for the distributed coordination law used by the MAS to converge. We first represent the convergence time of a MAS in terms of the mixing time of a random walk on the underlying network graph. We then study two leader selection problems as convex optimization problems of fast mixing. First, we formulate the problem of selecting a fixed number of leaders in order to minimize the convergence time. We then study the problem of finding the minimumsize set of leaders in order to satisfy a constraint on the convergence time. We develop leader selection algorithms based on supergradient descent methods for static network topologies as well as a MAS experiencing random link failures and a MAS that switches between predefined topologies. We compare our leader selection algorithms with random and degree-based leader selection for both static and dynamic networks through simulation study. From the simulation comparisons, we note that the convergence rate of fast mixing is faster than that of degree-based methods. We also note that the fast mixing requires smallest number of leaders to achieve a given bound on the convergence time.
Development of Dual PLD1/2 and PLD2 Selective Inhibitors from a Common 1,3,8-Triazaspiro[4.5]decane Core: Discovery of ML298 and ML299 That Decrease Invasive Migration in U87-MG Glioblastoma Cells (2013)

An iterative parallel synthesis effort identified a PLD2 selective inhibitor, ML298 (PLD1 IC50 > 20000 nM, PLD2 IC50 = 355 nM) and a dual PLD1/2 inhibitor, ML299 (PLD1 IC50 = 6 nM, PLD2 IC50 = 20 nM). SAR studies revealed that a small structural change (incorporation of a methyl group) increased PLD1 activity within this classically PLD2-preferring core and that the effect was enantiospecific. Both probes decreased invasive migration in U87-MG glioblastoma cells.
Novel method to automatically identify medial node correspondences between two images (2004)

Many modern forms of segmentation and registration require manual input, making them tedious and time-consuming processes. There have been some successes with automating these methods, but these tend to be unreliable due to inherent variations in anatomical shapes and image quality. It is toward this goal that we have developed methods of identifying correspondences in two images between medial nodes; image features related to anatomical structures. Medial based image features are used because they have proven robust against image noise and shape variation, and provide rotationally invariant properties of dimensionality and scale, while preserving orientation information independently. We have introduced several novel metrics for comparing the medial and geometric relationships between medial nodes and different cliques of medial nodes (a clique is a set of multiple medial nodes). These metrics overcome problems introduced by symmetry between cliques and provide increasing discriminability with the size of the clique. In this paper, we demonstrate medial-based correspondences and validate their specificity with standard Receiver Operator Characteristic (ROC) analysis. It is believed that our method of locating corresponding medial features may be useful for automatically locating anatomical structures or generating landmarks for registration.
Radical Cyclizations of Cyclic Ene Sulfonamides Occur with β-Elimination of Sulfonyl Radicals to Form Polycyclic Imines (2013)

Radical cyclizations of cyclic ene sulfonamides provide stable bicyclic and tricyclic aldimines and ketimines in good yields. Depending on the structure of the precursor, the cyclizations occur to provide fused and spirocyclic imines with five-, six-, and seven-membered rings. The initial radical cyclization produces an α-sulfonamidoyl radical that undergoes elimination to form the imine and a phenylsulfonyl radical. In a related method, 3,4-dihydroquinolines can also be produced by radical translocation reactions of N-(2-iodophenylsulfonyl)tetrahydroiso-quinolines. In either case, very stable sulfonamides are cleaved to form imines (rather than amines) under mild reductive conditions.
Wind tunnel investigation of an unswept airfoil with a 0.098-chord blowing flap (1972)

An investigation of the longitudinal aerodynamic characteristics of an aspect ratio 4.735 airfoil having a 9.8 percent chord blowing flap has been made in an out of ground influence over the endless moving belt ground plane in the 5.18 meter test section of the former Langley 300 MPH 7 by 10 foot wind tunnel. For flap deflections of 30 deg or less, at a height of 0.25 span, ground effect was negligible; but at this ground height, at a flap deflection of 60 deg and a lift coefficient of 8.0, the lift loss was 27 percent. The lift loss for this same condition becomes negligible at a height of one span.
ChemInform Abstract: Construction of 2,3‐ and 3,4‐Functionalized Silacyclopentanes: Synthesis of 6‐Aza‐2,2‐diphenyl‐2‐silabicyclo[3.1.0]hexane and 6‐Aza‐3,3‐diphenyl‐3‐silabicyclo[3.1.0]hexane Derivatives. (1998)

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.