gebhart/patrepeval huggingface dataset:
<title>Active object recognition using appearance-based representations derived from solid geometric models</title> (1998)

We present new test results for our active object recognition algorithms. The algorithms are used to classify and estimate the pose of objects in different stable rest positions and automatically re-position the camera if the class or pose of an object is ambiguous in a given image. Multiple object views are now used in determining both the final object class and pose estimate; previously, multiple views were used for classification only. A feature space trajectory (FST) in eigenspace is used to represent 3D distorted views of an object. FSTs are constructed using images rendered from solid models. We discuss lighting and material settings for photorealism in the rendering process. The FSTs are analyzed to determine the camera positions that best resolve ambiguities. Real objects are recognized from intensity images using the FST representation derived from rendered imagery.
Synthesis of amphiphilic block copolymers bearing stable nitroxyl radicals (2010)

Abstract We present here the synthesis of two kinds of amphiphilic block copolymers, a diblock copolymer MPEG‐ b ‐PTAm and a triblock copolymer MPEG‐ b ‐PLA‐ b ‐PTAm, which can self‐assemble into micelles with nitroxyl radicals‐containing PTAm segment in the core. The structure of the block copolymers was characterized by 1 H NMR and GPC. Dynamic laser light scattering and transmission electron microscopy were used to study the micellar behavior of the two block copolymers in aqueous solution. The micelles carrying nitroxyl radicals in the core can generate electron paramagnetic resonance, which is stable for a period of time up to 8 min even in the presence of reducing reagent such as ascorbic acid. The enhanced stability against the reducing agent was ascribed to the inaccessibility of the nitroxyl radical core placed in the interior of the micelles. Combined with the biocompatibility, these micelles were promising to be used as the EPR probes for bioimaging in vivo . © 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2010
?- and ?-Relaxations in neat and antiplasticized polybutadiene (2000)

Dielectric spectroscopy was carried out to measure the α-relaxation (local segmental motion) and the higher frequency, secondary relaxation (β-mode) in 1,4-polybutadiene, both neat and containing a nonpolar diluent, mineral oil. The α-relaxation shifted to lower frequencies (antiplasticization) in the presence of the diluent, suggesting the glass temperature of the latter is higher than the Tg of the polymer (i.e., >187K). The Tg of neat mineral oil cannot be determined directly, due to crystallization. While the diluent increased the magnitude of the α-relaxation times, it had no effect on the β-relaxation. Moreover, neither the shape of the α-relaxation function nor its temperature dependence was influenced by the diluent. From this we conclude that the main effect of the mineral oil was to increase the local friction, without changing the degree of intermolecular cooperativity of the molecular motions. We also find that near the glass temperature, there is rough agreement between the time scale of the secondary relaxation process and the value of a noncooperative relaxation time estimated from theory. This approximate correspondence between the two relaxation times also holds for 1,2 polybutadiene. However, the β-process cannot be identified with the noncooperative α-relaxation, and the relationship between them is not quantitative. © 2000 John Wiley & Sons, Inc.* J Polym Sci B: Polym Phys 38: 1841–1847, 2000
A framework for visual saliency detection with applications to image thumbnailing (2009)

We propose a novel framework for visual saliency detection based on a simple principle: images sharing their global visual appearances are likely to share similar salience. Assuming that an annotated image database is available, we first retrieve the most similar images to the target image; secondly, we build a simple classifier and we use it to generate saliency maps. Finally, we refine the maps and we extract thumbnails. We show that in spite of its simplicity, our framework outperforms state-of-the-art approaches. Another advantage is its ability to deal with visual pop-up and application/task-driven saliency, if appropriately annotated images are available.
Identification of the A3 adenosine receptor in rat retinal ganglion cells. (2006)

Retinal ganglion cells express A3 adenosine receptor mRNA. Stimulation of this receptor can reduce the Ca2+ overload following excessive activation of P2X7 receptors.
High damage threshold meter-scale optical components for multi-PW lasers (2016)

Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text A. Hervy, L. Gallais, G. Chériaux, D. Mouricaud, S. Djidel, A. Fréneaux, J. Chambaret, C. Leblanc, M. Somekh, F. Mathieu, N. Bonod, A. Cotel, F. Desserouer, O. Uteza, R. Clady, and M. Sentis, "High damage threshold meter-scale optical components for multi-PW lasers," in Optical Interference Coatings 2016, OSA Technical Digest (online) (Optica Publishing Group, 2016), paper ThA.7. Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article
Vascular Endothelial Growth Factor (VEGF) Is a Growth and Survival Factor in Waldenstrom’s Macroglobulinemia. (2004)

Abstract Waldenstrom’s macroglobulinemia (WM) is a B-cell disorder characterized by excess of bone marrow (BM) IgM secreting lymphoplasmacytic cells (LPC). In previous studies, we and others have demonstrated that VEGF within the BM micro-environment plays a role in the growth, survival and migration of myeloma plasma cells. Conversely, we demonstrated that BM mast cells (MC), which produce and secrete VEGF (Boesiger, J Exp Med, 1998) support growth and survival of WM LPC (Tournilhac et al, JCO2004; 22:517S). In the present studies we therefore explored the role of VEGF in WM pathogenesis. Using RT-PCR analysis, we detected VEGF receptors R1 (Flt-1) and R2 (flk1/KDR) transcripts in sorted LPC from 4/4 (100%) and 15/16 (94%) WM patients respectively. Moreover, we showed functionality for VEGF as a growth and survival factor in WM. Specifically, recombinant human VEGF (rh-VEGF) at 25 ng/ml induced dose dependent proliferation of sorted LPC from WM patients and prevented serum starvation- induced apoptosis. Inhibition of VEGF signaling pathways both induced apoptosis and blocked mast cell- induced proliferation of sorted WM LPCs in 4 of 6 and 4 of 4 patients, respectively. Besides the known MC-derived WM LPC growth and survival factors CD40 ligand (CD40L) (JCO2004; 22;517S) and B-lymphocyte stimulator protein (BLYS) (Ditzel Santos et al, ASH 2004 submitted), the present study demonstrates also a role of VEGF in WM pathogenesis. We therefore suggest VEGF as an additional therapeutic target in WM treatment regimens.
RAPAMYCIN SYNERGIZES WITH DST PLUS ANTI-CD154 TO BLOCK AUTO AND ALLO-IMMUNE RESPONSE AND INDUCE ISLET ALLOGRAFT ENGRAFTMENT IN SPONTANEOUS AUTOIMMUNE DIABETIC NOD RECIPIENTS (1999)

491 Attempts to use islet cell transplants for the long term delivery of insulin have failed to induce islet iso- and allograft engraftment in human IDDM as well as murine NOD recipients due to rapid graft destruction by both auto- and allo-immune responses. Combined pre-transplant donor specific transfusion (DST) with anti-CD154 treatment has proved to be a powerfully tolerizing therapy in non-autoimmune murine islet allograft recipients. However, it fails to prevent acute islet allograft rejection in autoimmune diabetic NOD mice. Since the high early success rate of whole pancreas engraftment with conventional treatment in the clinic, it would be desirable to use an effective conventional immunosuppressive regimen in low doses or for a short course as an adjunct. We believe that IL-2 dependent activation induced cell death (AICD), are required for induction of transplantation tolerance induced by costimulation blockade. We hypothesize that rapamycin, which inhibits T cell proliferation trigged by T-cell growth factors but preserve IL-2 mediated AICD, will synergize with pre-transplant DST plus anti-CD154 to block auto- and alloimmune response thus permitting islet allograft engraftment in spontaneous autoimmune NOD recipients. Crude islets were harvested from DBA/2 (H-2d) and C3H (H-2k) donor and transplanted into spontaneous diabetic NOD (H-2d,b) recipient mice. NOD recipients received (i) no treatment; (ii) pre-transplant DST plus anti-CD154; (iii) rapamycin; (iv) combined pre-transplant DST plus anti-CD154 with rapamycin initiated at the day of islet transplantation; (v) combined pre-transplant DST plus anti-CD154 with rapamycin initiated three days prior transplantation. Results:(Table) Rapamycin treatment started at the day of transplantation. ** Rapamycin treatment started at three days prior transplantation. *** Two NOD recipients received second DBA/2 islet grafts 5 days after primary graft rejection, (#) indicate second graft survival time. TableConclusion: Rapamycin synergizes with pre-transplant DST plus anti-CD154 to block auto- and alloimmune response thus permitting islet allograft engraftment in spontaneous autoimmune NOD recipients.
Comparative genomic hybridization analysis of chromosomal changes occurring during development of acquired resistance to cisplatin in human ovarian carcinoma cells (1997)

The genetic changes underlying the development of resistance to the platinum-containing drugs are poorly defined. We analyzed six resistant cell lines using comparative genomic hybridization (CGH) in order to screen and identify possible genetic changes in common. We compared parental 2008 and A2780 human ovarian cancer cells to sublines selected for resistance to cisplatin (DDP) (2008/C8, 2008/C13*5.25, 2008/A, A2780/CP); we also compared 2008 cells to sublines selected for resistance to antimonite (2008/H) and arsenite (2008/I) which demonstrated cross-resistance to DDP. DNA samples from the resistant cell lines were hybridized against DNA from the parental cells rather than from normal human cells to permit detection of only those changes associated with the development of resistance. The DNA sequence copy number changes were surprisingly numerous in the DDP, antimony, and arsenite-resistant variants of the 2008 cell line and most of the chromosomes were affected. On the other hand, in the A2780/CP subline only a few changes were found and these were limited to just four chromosomes. The most common findings among the DDP-resistant cell lines were gains of material from chromosomes or chromosome arms 2q (5 out of 6 lines), 4 (4/6), 6q (5/6), and 8q (4/6). Deletions were observed on chromosomes or chromosome arms 2p (4/6), X (4/6), 7p (5/6), 11p (4/6), and 13 (4/6). The most frequently involved chromosomal regions, affected in the majority of cell lines, were: gain of 2q14.1-q33, 4p15.2-p13, 4q22-q25, 4q31.1-q34, 6q13-q16, 8q12-q21.2, and loss of Xp22.2-q21, 7p21-p14, 11cen-p14 in sublines of 2008, and loss of 2pter-p22 and 13q21 in sublines of 2008 and A2780. The results suggest that the acquired resistance and cross-resistance to DDP in these cell lines was associated with substantial genomic instability, quite unlike the changes observed in association with the development of resistance to drugs participating in the multidrug resistance phenotype.
On discretization of continuous-time LPV control solutions (2022)

In recent years, the Linear Parameter-Varying (LPV) framework has become increasingly useful for analysis and control of time-varying systems. Generally, LPV control synthesis is performed in the continuous-time (CT) domain due to significantly more intuitive performance shaping methods in CT. However, the main complication of CT synthesis approaches is the successive implementation of the resulting CT control solutions on physical hardware. In the literature, several discretization methods have been developed for LPV systems. However, most of these approaches necessitate heavy nonlinear operations introduced by the discretization of these time-varying matrices or can introduce significant approximation error, thereby severely limiting implementation capabilities of CT LPV control solutions. Alternatively, the $w'$ discretization approach has been introduced in the LTI case to allow for preservation of the CT control. Based on these observations, this paper aims at extending the $w'$ discretization approach to LPV systems, such that implementation of CT LPV control solutions on physical hardware is simplified.
BIOGEOCHEMICAL CONTROLS ON MAGNETIC SUSCEPTIBILITY VARIATIONS ACROSS A HYDROCARBON CONTAMINATED SITE (2013)

Biogeophysical investigations over the last decade have provided evidence documenting that geophysical technique can be used to assess in-situ biogeochemical processes. Here we present new results demonstrating the potential of magnetic susceptibility (c) as a viable technique for investigating iron reduction and iron mineral cycling during remediation. In this study, we investigated a site contaminated by crude oil at Bemidji, Minnesota where intrinsic bioremediation is known to occur and iron is the dormant electron acceptor process. Our goal was to characterize the variations in c and microbial communities in contaminated and pristine locations. We performed borehole c logging using a Bartington c probe at the field site and cores were retrieved for microbial analysis and iron mineralogy. Molecular techniques were applied, including denaturing gradient gel electrophoresis (DGGE) to evaluate the overall community composition and the polymerase chain reaction (PCR) to detect iron-reducing bacterial populations. Our results show the following: (1) an enhanced zone of c within the hydrocarbon smear zone, straddling the water table at the contaminated locations, not observed at the background locations; (2) cvalues within the free product plume are higher compared to values within the dissolved product plume; (3) high c coincides with zones of elevated Fe (II) and Fe (III) solid concentrations and low permeability (4) the presence of Geobacter species in the zones of elevated magnetic susceptibility, (5) siderite, goethite, and magnetite were the dominant biominerals but with magnetite dominating the MS response. The mineral dominating the c response is magnetite. Under high organic carbon concentration and high rates of Fe2+ production, Fe2+ directly sorbs to ferrihydrite forming magnetite. We conclude that c measurements are a: (1) low cost, rapid monitoring tool for assessing the extent of hydrocarbon contamination and (2) proxy for the presence of intrinsic bioremediation related to iron reduction.
Interpenetrating Network Metal-Ceramic FGM – Preparation and Properties (2009)

A new method for processing large flat compositionally graded metal-ceramic parts with connected interpenetrating metal and ceramic network is described. Based on powder metallurgical methods, a metal foam is obtained by slip casting of metal powder slurries on a polyurethane foam, and used as preform to achieve a metallic interpenetration within the composite. The porous metallic preform is infiltrated with a ceramic slip and co-sintered. The metallic part is made from Ni-Cr-alloy, or the P/M superalloy Saratherm 2 and Nimonic 90, the ceramic consists of pure 8Y-ZrO2 or zirconia mixed with ZrSiO4. Composites of nominal same composition sintered without the metal foam preform show no metallic interpenetration.
Stepwise Catheter Ablation of Chronic Atrial Fibrillation:Importance of Discrete Anatomic Sites for Termination (2006)

Background: Chronic atrial fibrillation (CAF) can be acutely terminated using a combination of approaches targeting thoracic veins, left atrial areas showing rapid/heterogeneous electrical activity, and by linear ablation. This observational study emphasizes the crucial role for conventional endocardial mapping to identify discrete anatomical sites, ablation of which is indispensable for the achievement of atrial fibrillation (AF) termination. Methods : Eighty consecutive patients with CAF underwent catheter ablation using the stepwise approach. Pulmonary vein isolation and roof‐line ablation were performed as the initial two steps in all patients. In the presence of locally rapid or heterogeneous activity, ablation was then performed at all sites within the left atrium and coronary sinus (CS) region with the endpoint of local organization or slowing. If AF persisted, the mitral isthmus was targeted. Patients in whom AF terminated during one of these five ablation steps were differentiated from those in whom AF was terminated by radiofrequency ablation at a single discrete anatomic site within 1 minute. Electrograms at discrete anatomic sites of termination were classified according to morphology. Results: Termination of AF was achieved in 69 (86%) patients by ablation alone. In 50 patients (72%), this occurred while following the predetermined ablation schema. In the remaining 19 patients (28%), ablation targeting a discrete site (preferentially located at the CS, the base of left atrial appendage, and the interatrial septum) terminated AF. Such sites were identified by (1) continuous electrical activity and fractionation and (2) bursts of short cycle activity (130–160 msec), centrifugal activation or local activation gradients, indicating sources perpetuating AF. Conclusion: In 28% of patients with termination of CAF, the final successful ablation site is anatomically discrete and displays electrophysiological characteristics that can be effectively identified by point and activation mapping. Failure to identify these sites may significantly reduce the likelihood of termination of CAF by catheter ablation.
Proteomics and HUPO: A Great Future Ahead (2007)

ADVERTISEMENT RETURN TO ISSUEEDITORIALNEXTProteomics and HUPO: A Great Future AheadYoung Mok Park, Jong Shin Yoo, and and Kyung-Hoon KwonCite this: J. Proteome Res. 2007, 6, 10, 3869Publication Date (Web):October 5, 2007Publication History Published online5 October 2007Published inissue 1 October 2007https://pubs.acs.org/doi/10.1021/pr0707861https://doi.org/10.1021/pr0707861newsACS Publications. This publication is available under these Terms of Use. Request reuse permissions This publication is free to access through this site. Learn MoreArticle Views185Altmetric-Citations1LEARN 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 (82 KB) Get e-Alertsclose SUBJECTS:Proteomics Get e-Alerts
<title>Heliradar: the pilot's eye for flights in adverse weather conditions</title> (1996)

In 1992 Eurocopter Deutschland and Daimler-Benz Aerospace started a research program to investigate the feasibility of a piloting radar based on the so-called ROSAR technology: HELIRADAR. While available radar instruments are not capable of guiding a helicopter pilot safely under poor visibility conditions due to lack of resolution and lack of height information, ROSAR technology, a Synthetic Aperture Radar based on ROtating antennas, has been the promise to overcome these deficiencies. Based on ROSAR technology HELIRADAR has been designed to provide a video-like image whose resolution is good enough to safely guide a helicopter pilot under poor visibility conditions to the target destination. To yield very high resolution a similar effect as for Synthetic Aperture Radar systems can be achieved by means of a rotating antenna. This principle is especially well suited for helicopters, since it allows for a stationary carrier platform. Additional rotating arms with antennas integrated in their tips are mounted on top of the rotating rotor head. While rotating, the antenna scans the environment from various visual angles without assuming a movement of the carrier platform itself. The complete transmitter/receiver system is fixed mounted on top of the rotating axis of the helicopter. The antennas are mounted at the four ends of a cross and rotate at the same speed as the rotor. The received radar signals are transferred through the center of the rotor axis down into the cabin of the helicopter, where they are then processed in the PolyCluster type high performance digital signal processor.
Broken Rotor Bar Detection in Line-Fed Induction Machines Using Complex Wavelet Analysis of Startup Transients (2007)

Fault detection of line-connected induction machines using complex vector wavelets to analyze the transient stator currents during startup is proposed in this paper. When a machine is connected to the line, the startup transient is characterized by large stator (and rotor) currents, as well as by large slips (i.e., rotor speed significantly smaller than the excitation frequency). The stator current of machines with damaged rotors include large rotor speed dependent components during the startup transient. Such components, however, fade away or coincide with components not containing fault related information (e.g., saturation-induced components) once the machine reaches steady-state. Because of this, the startup transient provides an opportunity for performing diagnostics on the machine. The paper shows that the information contained in the startup transient signal can be effectively separated and detected using a complex vector wavelet transform.
Spatio-temporal interactions in anisometropic and strabismic amblyopia. (1977)

Contrast sensitivity functions for sinusoidal gratings of different spatial frequencies and stimulus durations have been determined for both eyes of amblyopic subjects. For both long and short stimulus durations, the entire contrast sensitivity function of the amblyopic eyes is lower than that of the nonamblyopic eyes. When the gratings were flickered at 10 Hz, the sensitivity for pattern and flicker detection were similar for both eyes at low spatial frequencies. Possible neural mechanisms for the differences in contrast sensitivity are considered with respect to recent psychophysical and electrophysiological evidence for channels with different spatio-temporal properties in the mammalian visual system.
Analysis, Design, And Evaluation Of Avcs For Heavy-duty Vehicles With Actuator Delays (1998)

This report focuses on the design of longitudinal control algorithms for commercial heavy vehicles (CHVs). The algorithms use nonlinear spacing policies, backstepping control design, and aggressive prediction schemes to deal with the presence of significant delays and saturations in the fuel and brake actuators. The algorithms can also deal with delays both in the presence and in the absence of intervehicle communication. A by-product on this research is the development of two software packages, Platoon-Builder and TruckVis, for simulation and animation of CHV platoons. Additionally, another important result of this project is a new simplified framework for evaluating the longitudinal string stability properties of platoons of automated vehicles.