gebhart/patrepeval huggingface dataset:
Quality improving techniques for free-viewpoint DIBR (2010)

Interactive free-viewpoint selection applied to a 3D multi-view signal is a possible attractive feature of the rapidly developing 3D TV media. This paper explores a new rendering algorithm that computes a free-viewpoint based on depth image warping between two reference views from existing cameras. We have developed three quality enhancing techniques that specifically aim at solving the major artifacts. First, resampling artifacts are filled in by a combination of median filtering and inverse warping. Second, contour artifacts are processed while omitting warping of edges at high discontinuities. Third, we employ a depth signal for more accurate disocclusion inpainting. We obtain an average PSNR gain of 3 dB and 4.5 dB for the 'Breakdancers' and 'Ballet' sequences, respectively, compared to recently published results. While experimenting with synthetic data, we observe that the rendering quality is highly dependent on the complexity of the scene. Moreover, experiments are performed using compressed video from surrounding cameras. The overall system quality is dominated by the rendering quality and not by coding.
Quantifying Volume Changing Perturbations to a Wave Chaotic System (2012)

Bulletin of the American Physical Society - APS March Meeting 2012 - Volume 57, Number 1.\nThe Loschmidt Echo and Fidelity decay are used to measure perturbations on a quantum wave chaotic system. We extended these concepts to classical waves to detect perturbations. [1]. In this work, we show that volume changing perturbations to a classical wave chaotic cavity can be quantified with a sub-wavelength sensitivity. This is demonstrated both numerically and experimentally. A wave chaotic quasi-1D star graph model [2], was initially used to show the results. The quantification of electrical-volume changing perturbations to a one cubic meter aluminum box will be demonstrated experimentally; the experimental results are also supported by a finite difference time domain simulation of the box. Finally, the approach to quantify these perturbations will be shown to apply to a generic wave chaotic system by using a time domain version of our Random Coupling Model.
A <i>Leishmania</i> protein that modulates interleukin (IL)‐12, IL‐10 and tumor necrosis factor‐α production and expression of B7‐1 in human monocyte‐derived antigen‐presenting cells (1997)

LeIF, a gene homologue of the eukaryotic initiation factor 4A was first described as a leishmanial antigen that induced a Th1-type T cell response in peripheral blood mononuclear cells (PBMC) from leishmaniasis patients. Moreover, the interferon (IFN)-gamma production by PBMC was found to be interleukin (IL)-12 dependent. Herein, we characterize the effects of LeIF on cytokine production and expression of surface molecules by normal human monocytes as well as by monocyte-derived macrophages and dendritic cells (MoDC). LeIF was a strong inducer of IL-12 and, to a lesser extent, of IL-10 and tumor necrosis factor (TNF)-alpha in macrophages and MoDC. IL-12 production did not require CD40 triggering, confirming that the ability of LeIF to induce IL-12 was not mediated through an effect on T cells. However, addition of soluble CD40 ligand (L) synergistically augmented IL-12 production in macrophages and MoDC. The cytokine-inducing activity of LeIF is located in the N-terminal portion of the molecule and was both proteinase K sensitive and polymyxin B resistant. LeIF, lipopolysaccharide and fixed Staphylococcus aureus all induced comparable amounts of IL-12, validating the potent cytokine-inducing effects of LeIF. Moreover, of these stimuli, LeIF had the highest IL-12/IL-10 and IL-12/TNF-alpha ratio demonstrating the preference of LeIF for IL-12 induction. Studies investigating the expression of surface molecules showed that LeIF up-regulated B7-1 and CD54 (ICAM-1) on macrophages and MoDC. To our knowledge this is the first report describing IL-12 production, up-regulation of co-stimulatory and intercellular adhesion molecules by monocytic antigen-presenting cells in response to a protein from a pathogenic microorganism. These immunomodulatory characteristics of LeIF might be excellent properties for a Th1-type adjuvant.
Skin detection using spatial analysis with adaptive seed (2013)

This paper introduces a new method for adaptive skin detection in color images combined with spatial analysis of skin pixels. It has been reported in many works that adaptation of a skin color model to a particular image may decrease the false positives, however the false negatives are considerably high unless a local model is combined with the global one. Another possibility for improvement is to analyze spatial properties of the pixels classified as skin, but this operation strongly depends on the seed extraction technique. Our contribution lies in using a local dynamic skin model learned from the detected faces to extract seeds for the spatial analysis. We present an extensive experimental study confirming that our method outperforms alternative skin detection techniques.
[Effects of clenbuterol on the metabolism of nitrogen and IGF-I level in isolated perfused rat liver]. (2002)

It is suggested that clenbuterol may improve growth metabolism by means of increasing nitrogen retention and enhancing IGF-I production and secretion of rat liver.
Developing Social Work Practice in a 'Peak Oil' Scenario (2009)

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High level modelling and performance evaluation of address mapping in NAND flash memory (2009)

Flash memory has several particularities compared to other types of memory. First, a write operation should be preceded by an erase operation. Second, erase operations can only be performed in a unit much larger than the write unit. Finally, each erasable unit has a limit number of possible erase operations. To address these problems, an intermediate software layer called flash translation layer is used to perform address translation based on a mapping algorithm. The used mapping scheme is very important in deciding the performance and lifetime of flash memories. In this paper, we present a high level model for flash memory system allowing evaluating the impact of the address mapping algorithm on the performance of flash memory. We show the applicability of the performance estimation on one of the most popular and sophisticated address mapping scheme.
Synthesis of some s-triazoles with potential analgesic and antiinflammatory activities (1971)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis of some s-triazoles with potential analgesic and antiinflammatory activitiesThomas George, D. V. Mehta, R. Tahilramani, Joy David, and P. K. TalwalkerCite this: J. Med. Chem. 1971, 14, 4, 335–338Publication Date (Print):April 1, 1971Publication History Published online1 May 2002Published inissue 1 April 1971https://pubs.acs.org/doi/10.1021/jm00286a016https://doi.org/10.1021/jm00286a016research-articleACS PublicationsRequest reuse permissionsArticle Views312Altmetric-Citations75LEARN 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
Flexible heat pipes for CCD cooling on the Advanced Camera for Surveys (1998)

The Advanced Camera for Surveys (ACS) is an instrument containing two charged-coupled device (CCD) cameras and a multi-anode multi-channel array (MAMA) detector being built by Ball Aerospace and Technologies Corporation for NASA's Goddard Space Flight Center. The instrument is scheduled to be installed in the Hubble Space Telescope during a space shuttle mission in December of 1999. The CCD detectors need to operate at a temperature below -80 degrees C in order to avoid unacceptable dark current. This cooling is achieved with thermo-electric coolers (TEC) mounted in evacuated assemblies that contain the detectors. Heat that is generated by the TECs must be dissipated to space. Since the CCd assemblies are centrally located within the instrument enclosure, a method must be provided for transferring this heat to a heat rejection surfaces. Heat pipes have been selected for this purpose since they are frequently used in space applications for passively transferring heat from sources to remotely located radiating panels. The alignment of the CCDs is critical, however, so the loads induced into the detectors and the optical bench containing the sensor assemblies through heat pipes must be minimized. Consequently, the CCD heat pipes have been designed with a flexible section to minimize either thermally generated or launch induced structural loads. Structural and thermal testing has shown that these heat pipes will allow the ACS detectors to attain their operating temperature while meeting alignment stability requirements. This paper presents the design of and test results from the ACS flexible heat pipes.
Lightweight High-Pressure Ratio Centrifugal Compressor For Vehicles-Investigation Of Pipe Diffuser Designs By Means Of Cfd (2016)

The subject of this paper is the investigation of the<br> best efficiency design of a compressor diffuser applied in new<br> lightweight, ultra efficient micro-gas turbine engines for vehicles. The<br> Computational Fluid Dynamics (CFD) results are obtained utilizing<br> steady state simulations for a wedge and an ”oval” type pipe diffuser<br> in an effort to identify the beneficial effects of the pipe diffuser<br> design. The basic flow features are presented with particular focus<br> on the optimization of the pipe diffuser leading to higher efficiencies<br> for the compressor stage. The optimised pipe diffuser is designed to<br> exploit the 3D freedom enabled by Selective Laser Melting, hence<br> purposely involves an investigation of geometric characteristics that<br> do not follow the traditional diffuser concept.
Melanocortin 4 Receptor Becomes an ACTH Receptor by Coexpression of Melanocortin Receptor Accessory Protein 2 (2013)

Melanocortin 2 receptor (MC2R) is the only canonical ACTH receptor. Its functional expression requires the presence of an accessory protein, known as melanocortin receptor 2 accessory protein 1 (MRAP1). The vertebrate genome exhibits a paralogue gene called MRAP2, which is duplicated in zebrafish (MRAP2a and MRAP2b), although its function remains unknown. In this paper, we demonstrate that MRAP2a enables MC4R, a canonical MSH receptor, to be activated by ACTH with a similar sensitivity to that exhibited by MC2R. Both proteins physically interact and are coexpressed in the neurons of the preoptic area, a key region in the control of the energy balance and hypophyseal secretion in fish. ACTH injections inhibit food intake in wild-type zebrafish but not in fish lacking functional MC4R. Both MRAP1 and MRAP2a are hormonally regulated, suggesting that these proteins are substrates for feed-back regulatory pathways of melanocortin signaling. Fasting has no effect on the central expression of MRAP2a but stimulates MRAP2b expression. This protein interacts and is colocalized with MC4R in the tuberal hypothalamic neurons but has no effect on the pharmacologic profile of MC4R. However, MRPA2b is able to decrease basal reporter activity in cell lines expressing MC4R. It is plausible that MRAP2b decreases the constitutive activity of the MC4R during fasting periods, driving the animal toward a positive energy balance. Our data indicate that MRAP2s control the activity of MC4R, opening up new pathways for the regulation of melanocortin signaling and, by extension, for the regulation of the energy balance and obesity.
Development of a polyvinyl alcohol cryogel covered stent (2010)

Atherosclerosis is the number one cause of death in the United States and one of the most common treatments is the implantation of a stent. In order to eliminate the two most common complications - restenosis and thrombosis - a novel covered stent is investigated. A covered stent membrane should be able to undergo large stretch, prevent restenosis, and be relatively non-thrombogenic. Polyvinyl alcohol (PVA) cryogels are examined as a candidate material for covered stent membranes. Mechanical testing included uniaxial tensile testing, puncture testing, and the fabrication and expansion of PVA cryogel covered stents. Uniaxial testing showed PVA cryogels to have sufficient ultimate stretch which was similar to bare metal stents during deployment. Puncture testing revealed that PVA cryogels are not likely to puncture in vivo. No tears were seen in the PVA cryogel membrane after expansion of the covered stents. Finite element analysis was used to determine a PVA cryogel membrane's effect on artery wall stress. PVA cryogel covered stents reduced both artery wall stress and tissue prolapse when compared to equivalent uncovered stents. Migration assays were used to determine if PVA cryogels are able to block the smooth muscle cell migration seen during restenosis. PVA cryogels significantly reduced cellular migration in modified Boyden chambers - suggesting that they would be able to prevent restenosis in vivo. Thrombogenicity was tested in vitro with a gravity-fed flow loop using porcine blood and in vivo with a sheep model. PVA cryogels were found to be less thrombogenic than polyester controls with the flow loop system. The sheep study demonstrated the feasibility of implanting PVA cryogel covered stents and good early patency. After explantation, the PVA cryogel membranes were intact - providing in vivo evidence for the durability of PVA cryogel covered stents. Overall, this work provides evidence that covered stents made with PVA cryogels are a feasible device in terms of their mechanics, ability to prevent restenosis, and low thrombogenicity. This work represents a major advancement in the development of PVA cryogel covered stents and provides necessary safety and feasibility data for future clinical trials.
Wide-sense nonblocking network made of square switches (1981)

An example of theoretical interest is given, of a connecting network with no expansion which is nonblocking in the wide sense, i.e. if and only if the right routing algorithm is used.
Cardiac Surgery : Perioperative Patient Care (1994)

FOUNDATIONS OF CARDIAC SURGICAL NURSING . Historical Development of Cardiac Surgery . The Perioperative Nurse and the Cardiac Team . Structural Elements of Cardiac Surgery . Assessment of the Cardiac Patient . Diagnoses, Outcomes, and Plans of Care . Implementation of CareEvaluation of Outcomes Achievement . Anatomy Physiology . SURGICAL INTERVENTIONS . Basic Cardiac Procedures . urgery for Coronary Artery Disease . Mitral Valve Surgery . Aortic Valve Surgery . Tricuspid and Pulmonary Valve Procedures . Thoracic Aneurysms and Dissections . Mechanical and Biological Circulatory Assistance . Transplantation of the Heart and Lungs . Cardiac Dysrhythmia Procedures . Adult Congenital Heart Disease . Trauma and Emergency Surgery . Miscellaneous Procedures
High quality SiGe epitaxial layer grown by RPCVD using dichlorosilane (2002)

The evolution of defect density in non-selective Si/SiGe structures grown with SiH/sub 2/Cl/sub 2/ as Si source has been studied. High-resolution reciprocal lattice mapping has been performed to characterize the epitaxial quality of the layers. The surface morphology and the density of dislocations were also investigated by using atomic force microscopy. The results showed that a minimum defect density could be obtained for a certain SiH/sub 2/Cl/sub 2/ partial pressure. A high partial pressure of SiH/sub 2/Cl/sub 2/ results in a large amount of Cl-based molecules, which saturates the growth rate. A low partial pressure of SiH/sub 2/Cl/sub 2/ causes a too low growth rate and the incorporation of impurities in Si lattice increases. Both the above cases lead to a poor epitaxial quality and an optimum value can be obtained in the transit between these two regions in the growth rate vs. SiH/sub 2/Cl/sub 2/ partial pressure diagram. Applying the optimized SiH/sub 2/Cl/sub 2/ partial pressure value to grow Si/SiGe layers on the patterned substrate causes a higher defect density than on blanket substrates, which also increases with decreasing the size of the oxide-openings. This is due to injection of the defects from the poly Si/SiGe into the single crystalline region.
N‐Type Colloidal‐Quantum‐Dot Solids for Photovoltaics (2012)

N-type PbS colloidal-quantum-dot (CQD) films are fabricated using a controlled halide chemical treatment, applied in an inert processing ambient environment. The new materials exhibit a mobility of 0.1 cm(2) V(-1) s(-1) . The halogen ions serve both as a passivating agent and n-dope the films via substitution at surface chalcogen sites. The majority electron concentration across the range 10(16) to 10(18) cm(-3) is varied systematically.
Surface grafting of polymer onto carbon thin film (1995)

Abstract The surface grafting of polymers onto carbon thin film deposited on a glass plate was achieved by two methods: the graft polymerization initiated by initiating groups introduced onto the surface; and the trapping of polymer radicals by surface aromatic rings of the thin film. It was found that the radical and cationic graft polymerization of vinyl monomers are initiated by azo and acylium perchlorate groups introduced onto the surface, respectively, and the corresponding polymers are grafted onto the surface: the surface grafting of polymers were confirmed by the contact angle of the surface with water. In addition, the anionic ring‐opening alternating copolymerization of epoxides with cyclic acid anhydrides was found to be initiated by potassium carboxylate groups on the carbon thin film to give the corresponding polyester‐grafted carbon thin film. On the other hand, polymer radicals formed by the decomposition of azo polymer, such as poly(polydimethylsiloxane‐azobiscyanopentanoate) and poly(polyoxyethylene‐azobiscyanopentanoate), were successfully trapped by the surface aromatic rings of carbon thin film and polydimethylsiloxane and polyoxyethylene were grafted onto the surface. © 1995 John Wiley & Sons, Inc.
Improved fluorescent cycle sequencing protocol allows reading nearly 1000 bases. (1994)

Recently available thermostable DNA polymerases result in enhanced resolution and accuracy compared to thermal enzymes used previously in fluorescent cycle sequencing. These new enzymes produce less variations in peak intensities, enhance gel resolution and are less sensitive to unspecific termination caused by either DNA structure or impurities in the DNA preparation. Optimization of nucleotide ratios and the usage of high concentrations of detergents in the sequencing reaction result in sequence readings up to 1000 bases and improve overall reliability of the sequencing protocol; this works successfully in about 90% of cases.
Applications and societal benefits of plastics (2009)

This article explains the history, from 1600 BC to 2008, of materials that are today termed 'plastics'. It includes production volumes and current consumption patterns of five main commodity plastics: polypropylene, polyethylene, polyvinyl chloride, polystyrene and polyethylene terephthalate. The use of additives to modify the properties of these plastics and any associated safety, in use, issues for the resulting polymeric materials are described. A comparison is made with the thermal and barrier properties of other materials to demonstrate the versatility of plastics. Societal benefits for health, safety, energy saving and material conservation are described, and the particular advantages of plastics in society are outlined. Concerns relating to littering and trends in recycling of plastics are also described. Finally, we give predictions for some of the potential applications of plastic over the next 20 years.
<i>ENOD12</i>Gene Expression as a Molecular Marker for Comparing Rhizobium-Dependent and -Independent Nodulation in Alfalfa (1994)

International audience
The Economics of Slotting Contracts (2007)

Slotting fees, per‐unit‐time payments made by manufacturers to retailers for shelf space, have become increasingly prevalent in grocery retailing. Shelf space contracts are shown to be a consequence of the normal competitive process when retailer shelf space is promotional, in the sense that the shelf space induces profitable incremental individual manufacturer sales without drawing customers from competing stores. In these circumstances, retailer and manufacturer incentives do not coincide with regard to the provision of promotional shelf space, and manufacturers must enter shelf space contracts with retailers. Retailers are compensated for supplying promotional shelf space at least partially with a per‐unit‐time slotting fee when interretailer price competition on the particular product makes compensation with a lower wholesale price a more costly way to generate equilibrium retailer shelf space rents. Our theory implies that slotting will be positively related to manufacturer incremental profit margins, a fact that explains both the growth and the incidence across products of slotting contracts in grocery retailing.
Appearance of Gold, Silver and Copper Colors of Glossy Object Surface (2016)

We investigated categorical regions and appearances of gold, silver and copper color, and glossiness for CG spheres with various chromaticities, lightnesses, and contrast glosses. It was found that the chromaticity regions of brown and yellow changed into gold color, those of gray and black into silver color, and a part of brown region changed into copper color with increase of contrast gloss. The magnitude estimates of gold, silver and copper color increased in high saturation chromaticity regions, achromatic regions, and medium saturation regions, respectively as the contrast gloss increased. As lightness levels increase gold and silver color estimates showed almost no change although copper color estimates decreased. It is suggested that the visual system would independently process glossiness and chromaticness of a surface in a lower level, and then, yield appearances of gold, silver and copper colors by combining them in a higher level.