gebhart/patrepeval huggingface dataset:
Robust Feature Detection Using 2D Wavelet Transform under Low Light Environment (2007)

The paper presents a local feature detection method for vSLAM-based self-localization of mobile robots. Extraction of strong feature points enables accurate self-localization under various conditions. We first proposed NAST pre-processing filter to enhance low light-level input images. The SIFT algorithm was modified by adopting wavelet transform instead of Gaussian pyramid construction. The wavelet-based pyramid outperformed the original SIFT in the sense of processing time and quality of extracted keypoints. A more efficient local feature detector and a compensation scheme of noise due to the low contrast images are also proposed. The proposed scene recognition method is robust against scale, rotation, and noise in the local feature space.
O1325 BIOACTIVE GLASS-POLYMETHYLMETACRYLATE AS BULK PROSTHESIS IN TREATMENT OF EXPERIMENTAL LONG BONE DEFECT (2004)

Aims: To develope a prosthesis with porous surface based on polymer technology of metacrylates, bioactive glass S53P4 and glassfiber reinforcement to treat segmental bone defects. Methods: A sylindrical prosthesis matching anatomically shape of the rabbits tibia was prepared from bioactive glass S53P4 (granule size 90–315 μm) and polymethylmetacrylate (PMMA). The polymerization was perfomed extracorporally thus reducing the amount of toxic monomers introduced into the body. Three groups of prosthesis were made: 1. Surface of the bulk grinded to expose glass granules at its surface 2. Surface prepared porotic, porediameter 50–300 μm and biomechanical properties increased by glass fiber reinforcement 3. Prosthesis made from PMMA serving as control group. A 12 mm segmental defect was sawed in the tibia and replaced with the prosthesis. Prosthesis was fixed with DCP-plate. Evaluation was made after 4, 8 and 20 weeks by plain radiographs, CT, histology, histometry and SEM. Results: Bone incorporation at the interface was evident in areas where good tissue contact was obtained. Porotic surface structure enhanced bone ingrowth. Histometry revealed 16–30% bone contact at the interface in groups 1 and 2. Conclusions: Study illustrates views on biotechnical innovations combining bioactive materials to be used for bone reconstruction. This composite material has potentials to be used as new prosthesis material and artificial bone substitute.
Blends of Dissimilar Rubbers—Cure-Rate Incompatibility (1988)

Abstract The mechanical properties of a vulcanizate of a blend which comprises both a high-diene rubber such as NR and an ozone-resisting concentration (at least 30 to 40 wt.% of the polymers) of EPDM can be greatly improved if the EPDM is chemically modified by the action of maleic anhydride. The effect of the EPDM modification of the vulcanizate properties is to give increased tensile strength, improved fatigue resistance, and reduced hysteresis and set. The excellent ozone resistance which results from the presence of about 30 to 40% unmodified EPDM is also obtained when the modified EPDM is used. Good results are obtained when only 1 to 2% (as a wt.% of EPDM) of maleic anhydride is used in the modification of the EPDM. Good results are obtained when only part of the EPDM is modified by the action of maleic anhydride. However, best results are obtained when all of the EPDM is treated with maleic anhydride. The ozone-resisting effect provided by the incorporation of a para -phenylenediamine antidegradant into a 60/40 NR/EPDM blend vulcanizate is overwhelmed and made obscure by the very large beneficial effect due to the presence of the EPDM. However, the use of an antidegradant such as 6PPD is still necessary because of its ability to impart a great improvement in fatigue life.
A new optical method for measuring surface temperature at large incident probe angles (1997)

A novel thermoreflectance technique has been developed for noncontact temperature measurements using laser light incident at large angles on solid materials and devices. The method involves measuring the differential reflectance from a polarization modulated laser beam. The polarization differential reflectance technique is demonstrated on single-crystal Si wafers and on a polycrystalline carbon thin film over a temperature range of 20–60 °C. The method is shown to be an extremely sensitive temperature probe for near grazing angle measurements, which could be useful for monitoring the surface temperature of closely stacked silicon wafers used in batch processing in the microelectronics industry.
Correction: Pigment Epithelium-Derived Factor (PEDF) Expression Induced by EGFRvIII Promotes Self-renewal and Tumor Progression of Glioma Stem Cells (2016)

<p>Correction: Pigment Epithelium-Derived Factor (PEDF) Expression Induced by EGFRvIII Promotes Self-renewal and Tumor Progression of Glioma Stem Cells</p>
Multiple trellis coded modulation (MTCM) (1986)

The authors demonstrate a trellis coded modulation technique referred to as multiple trellis coded modulation (MTCM) wherein more than one channel symbol per trellis branch is transmitted. They have found simple two-state trellis codes for symmetric MPSK multiple phase-shift keying and AM modulations that can achieve 3-dB gain over uncoded modulation at very high signal-to-noise ratios without bandwidth expansion or reduction in information bit rate. The gain of these codes with respect to previously reported two-state trellis codes is between 1 and 2 dB at very high signal-to-noise ratios, depending on the number of bits per Hertz transmitted. These gains are achieved for those of the equivalent conventional trellis codes with the same number of states in the trellis diagram. The authors note that additional computations per branch are needed for the multiple trellis coding scheme. The concept can be extended to a higher number of states and other types of modulations. >
Comparison of the coordination chemistry and inductive transfer through the metal-metal bond in adducts of dirhodium and dimolybdenum carboxylates (1982)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTComparison of the coordination chemistry and inductive transfer through the metal-metal bond in adducts of dirhodium and dimolybdenum carboxylatesRussell S. Drago, John R. Long, and Richard CosmanoCite this: Inorg. Chem. 1982, 21, 6, 2196–2202Publication Date (Print):June 1, 1982Publication History Published online1 May 2002Published inissue 1 June 1982https://pubs.acs.org/doi/10.1021/ic00136a013https://doi.org/10.1021/ic00136a013research-articleACS PublicationsRequest reuse permissionsArticle Views340Altmetric-Citations49LEARN 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 overview of regression techniques for knowledge discovery (1999)

Predicting or learning numeric features is called regression in the statistical literature, and it is the subject of research in both machine learning and statistics. This paper reviews the important techniques and algorithms for regression developed by both communities. Regression is important for many applications, since lots of real life problems can be modeled as regression problems. The review includes Locally Weighted Regression (LWR), rule-based regression, Projection Pursuit Regression (PPR), instance-based regression, Multivariate Adaptive Regression Splines (MARS) and recursive partitioning regression methods that induce regression trees (CART, RETIS and M5).
Pluralité culturelle et modernité (2006)

Ce texte est un essai géographique sur la gestion de la diversité culturelle dans les sociétés modernes. La principale difficulté à laquelle nous faisons face, qui est plus généralement celle de l’analyse culturelle, est le piège essentialiste. C’est-à-dire le fait de donner a priori un sens aux groupes ou aux lieux dans lesquels on se trouve ou de supposer que l’on pourra le découvrir aux termes d’une exploration ou d’une analyse. Aussi, plutôt que de partir de l’essence et de considérer son étendue « jusqu’à une limite », c’est-à-dire là où l’étendue cesse, il convient de concevoir tes limites comme ce qui révèle l’essence et, surtout, ce par quoi les essences sont constituées. Dans cette perspective, j’analyse la notion du « vivre ensemble » et le concept de nation, le cadre par excellence de la gestion du sens (par les normes, les valeurs) et de la différence dans le monde moderne. Pour les fins de la démonstration, je me penche sur la limite existant entre l’espace de réalisation et l’espace de projection (l’horizon) et, dans l’espace de réalisation des nations, à la limite entre l’espace sensible (culturel) et l’espace citoyen.
Composite versus multichannel binary phase-only filtering (1997)

Multichannel filtering and its inherent capacity for the implementation of data-fusion algorithms for high-level image processing, as well as composite filtering and its capacity for distortion-invariant pattern-recognition tasks, are discussed and compared. Both approaches are assessed by use of binary phase-only filters to simplify implementation issues. We discuss similarities and differences of these two solutions and demonstrate that they can be merged efficiently, giving rise to a new category of filters that we call composite-multichannel filters. We illustrate this comparison and the new filter design for the case of rotation-invariant fingerprint recognition. In particular, we show that the gain in terms of encoding capacity in the case of the composite-multichannel approach can be used efficiently to introduce multichannel-filter reconfigurability.
Preparation of Stable Electroneutral Nanoparticles of Sodium Dodecyl Sulfate and Branched Poly(ethylenimine) in the Presence of Pluronic F108 Copolymer (2011)

Mixing of polyelectrolyte solutions with solutions of oppositely charged surfactants usually leads to phase separation in a certain concentration range. However, since the charge-neutralized polyelectrolyte/surfactant nanoparticles might be utilized as versatile nanocarriers of different substances, it would be desirable to prevent their aggregation for some applications. As it was revealed in earlier investigations, the complete suppression of precipitation may be achieved only in mixtures of ionic surfactants and appropriate copolymer polyelectrolytes with nonionic and ionic blocks. In this work, we present a method that could prevent phase separation in mixtures of homopolyelectrolytes and oppositely charged surfactants. Specifically, it is shown that nonaggregating electroneutral nanocomplexes of branched poly(ethylenimine) (PEI) and sodium dodecyl sulfate (SDS) can be prepared in the presence of the amphiphilic triblock copolymer Pluronic F108, provided that an adequate mixing protocol is used for preparation of the PEI/SDS/F108 mixtures.
Phase I Study of Rigosertib, an Inhibitor of the Phosphatidylinositol 3-Kinase and Polo-like Kinase 1 Pathways, Combined with Gemcitabine in Patients with Solid Tumors and Pancreatic Cancer (2012)

The RPTD established in this study is rigosertib 1,800 mg/m(2) and gemcitabine 1,000 mg/m(2). This regimen is well tolerated with a toxicity profile of the combination similar to the profile of gemcitabine alone. Antitumor efficacy was observed in patients who previously progressed on gemcitabine-based therapy.
TaNAC69 from the NAC superfamily of transcription factors is up-regulated by abiotic stresses in wheat and recognises two consensus DNA-binding sequences (2006)

NAC proteins are one of the largest families of plant transcription factors and have recently been implicated in diverse physiological processes. To elucidate their role in gene regulation, we determined the DNA-binding specificity of a drought- and cold-inducible NAC protein, TaNAC69 from wheat, and analysed its homologues from other species. Two consensus DNA-binding sequences (spanning 23-24 bp) of TaNAC69 were identified through binding site selection and both consisted of two half sites. Comprehensive data on the DNA-binding specificity of TaNAC69 were generated through extensive base substitution mutagenesis. TaNAC69 and its homologue in Arabidopsis, NAP, sharing 75% sequence identity in the NAC domain, exhibited similar DNA-binding specificity. TaNAC69 was able to homodimerise through its NAC domain. The NAC domain consists of five conserved subdomains. Subdomain mutation showed that a loss or reduction in TaNAC69 dimerisation capacity was accompanied with abolition or decrease in its DNA-binding activity. These data suggest that all subdomains are necessary to maintain a functional NAC domain structure required for interaction with DNA and dimerisation.
Magneto-Solid Mechanics (1986)

REVIEWSpresented in this section begin with two papers which sketch how to calculate the forces in hydrodynamic journal bearings and tilting pad bearings.Six papers then address instabilities due to: internal energy dissipation; asymmetries (such as bearing stiffnesses or inertias) which introduce time dependent parameters (solution by Floquet theory); fluid film bearings; gas seals; transverse-torsional coupling; and internal fluid flow.Particularly helpful are the two papers by Rieger (Ch.2.5 and 2.6) which give a concise history of these stability problems, explain quantitatively the physics of the instabilities using a simple rotor, and describe methods for suppression of instabilities.The section concludes with two papers on the interaction of rotating machinery with the surrounding support structure/ground.Part III -Balancing of Flexible Rotors.This section consists of a single paper which overviews the two methods for balancing: the modal approach; and the influence coefficient method.Part IV -Measurement and Identification.The six papers in this section begin with one on common vibration instruments and their uses on rotating machinery.The remaining papers deal with various aspects of the identification problem (how to deduce from measurements what the hard to predict rotor parameters are).
Novel antipsychotics activate recombinant human and native rat serotonin 5-HT1A receptors: affinity, efficacy and potential implications for treatment of schizophrenia (2005)

Serotonin 5-HT1A receptors are promising targets in the management of schizophrenia but little information exists about affinity and efficacy of novel antipsychotics at these sites. We addressed this issue by comparing binding affinity at 5-HT1A receptors with dopamine rD2 receptors, which are important targets for antipsychotic drug action. Agonist efficacy at 5-HT1A receptors was determined for G-protein activation and adenylyl cyclase activity. Whereas haloperidol, thioridazine, risperidone and olanzapine did not interact with 5-HT1A receptors, other antipsychotic agents exhibited agonist properties at these sites. E(max) values (% effect induced by 10 microM of 5-HT) for G-protein activation at rat brain 5-HT1A receptors: sarizotan (66.5), bifeprunox (35.9), SSR181507 (25.8), nemonapride (25.7), ziprasidone (20.6), SLV313 (19), aripiprazole (15), tiospirone (8.9). These data were highly correlated with results obtained at recombinant human 5-HT1A receptors in determinations of G-protein activation and inhibition of forskolin-stimulated adenylyl cyclase. In binding-affinity determinations, the antipsychotics exhibited diverse properties at r5-HT1A receptors: sarizotan (pK(i)=8.65), SLV313 (8.64), SSR181507 (8.53), nemonapride (8.35), ziprasidone (8.30), tiospirone (8.22), aripiprazole (7.42), bifeprunox (7.19) and clozapine (6.31). The affinity ratios of the ligands at 5-HT1A vs. D2 receptors also varied widely: ziprasidone, SSR181507 and SLV313 had similar affinities whereas aripiprazole, nemonapride and bifeprunox were more potent at D2 than 5-HT1A receptors. Taken together, these data indicate that aripiprazole has low efficacy and modest affinity at 5-HT1A receptors, whereas bifeprunox has low affinity but high efficacy. In contrast, SSR181507 has intermediate efficacy but high affinity, and is likely to have more prominent 5-HT1A receptor agonist properties. Thus, the contribution of 5-HT1A receptor activation to the pharmacological profile of action of the antipsychotics will depend on the relative 5-HT1A/D2 affinities and on 5-HT1A agonist efficacy of the drugs.
Effect of Crosslinking Agents on Water Repellency of Cotton Fabrics Treated with Fluorocarbon Resin (1994)

Cotton fabrics and cellulose films treated with fluorocarbon resin (Asahi Guard AG-480 ) with and without crosslinking agents (isocyanate blocked copolymer and aziridine) were washed and subsequently heat treated. Water repellency of the fabrics decreased with washing and recovered with heat treatment. The decreased water re pellency with washing was controlled by using the resin with a crosslinking agent. To investigate surface tension and surface chemical composition of the fabrics after washing and subsequent heat treatment, the contact angle to water and critical surface tension of the films were measured along with an ESCA analysis of the fabrics. Adding cross linking agents to the fluorocarbon resin treatment controlled the decrease in F 1s intensity and the increase in O 1s intensity with subsequent washing.
Photoemission study of K on graphite (1999)

The physical and electronic structure of the dispersed and $(2\ifmmode\times\else\texttimes\fi{}2)$ phases of K/graphite have been characterized by valence and core-level photoemission. Charge transfer from K to graphite is found to occur at all coverages, and includes transfer of charge to the second graphite layer. A rigid band description is reasonably successful in describing important aspects of the data, and our results are consistent with a shift of approximately $0.4 \mathrm{eV}$ in the surface graphite layer for both phases. The C $1s$ line shape and binding-energy shift as a function of charge transfer can be understood qualitatively by taking into account rigid band effects and the effects of a core hole on the density of states. For the $(2\ifmmode\times\else\texttimes\fi{}2)$ phase the metallic overlayer contributes extrinsic satellites to the C $1s$ line shape. The K $3p$ spectrum is strongly affected by the overlayer phase, and in addition indicates very little variation in the substrate charge distribution as a function of coverage in the dispersed phase. The lack of an interface K $3p$ binding-energy shift for a K bilayer or multilayer is ascribed to a weak K-graphite bond for metallic overlayers. The results have implications for the interpretation of photoelectron spectra of alkali graphite intercalation compounds (GIC's).
Comprehensive microRNA profiling of prostate cancer cells after ionizing radiation treatment (2014)

MicroRNAs (miRNAs) are small, non-coding RNAs that negatively regulate gene expression and have emerged as potential biomarkers in radiation response to human cancer. Only a few miRNAs have been identified in radiation response to prostate cancer and the involvement of the radiation-associated miRNA machinery in the response of prostate cancer cells to radiation is not thoroughly understood. Therefore, the purpose of the present study was to comprehensively investigate the expression levels, arm selection preference and isomiRs of radiation-response miRNAs in radiation-treated PC3 cells using a next-generation sequencing (NGS) approach. Our data revealed that the arm selection preference and 3' modification of miRNAs may be altered in prostate cancer after radiation exposure. In addition, the proportion of AA dinucleotide modifications at the end of the read gradually increased in a time-dependent manner after PC3 radiation treatment. We also identified 6 miRNAs whose expression increased and 16 miRNAs whose expression decreased after exposure to 10 Gy of radiation. A pathway enrichment analysis revealed that the target genes of these radiation-induced miRNAs significantly co-modulated the radiation response pathway, including the mitogen-activated protein kinase (MAPK), Wnt, transforming growth factor-β (TGF-β) and ErbB signaling pathways. Furthermore, analysis of The Cancer Genome Atlas (TCGA) database revealed that the expression of these radiation-induced miRNAs was frequently dysregulated in prostate cancer. Our study identified radiation-induced miRNA candidates which may contribute to radiosensitivity and can be used as biomarkers for radiotherapy.
<title>An Introduction To Photogrammetry</title> (1974)

The science of photogrammetry relies on some kind of a photographic record as the source of data. Such a record represents a two-dimensional registration of, in general, a three dimensional object. After certain reduction, each photograph may be regarded as a central perspective projection of the object. This reduction is warranted because the original light ray from an object point, which is represented by a straight line in the perspective theory, is in fact a curve. In addition, the position of the latent image on the photographic emulsion undergoes shifts due to variation in environment from exposure to processing and measurement. All such effects are termed "systematic" since they can be modelled mathematically. They include: 1. Atmospheric refraction 2. Earth curvature (due to mapping a spheroidal surface on a plane, that of the photograph). 3. Lens distortion, both radial and tangential 4. Image deformation due to emulsion and base instabilities. 5. Systematic errors due to characteristics of imaging and measuring equipment.
Partially Reduced Holey Graphene Oxide as High Performance Anode for Sodium‐Ion Batteries (2018)

Abstract The current Na + storage performance of carbon‐based materials is still hindered by the sluggish Na + ion transfer kinetics and low capacity. Graphene and its derivatives have been widely investigated as electrode materials in energy storage and conversion systems. However, as anode materials for sodium‐ion batteries (SIBs), the severe π–π restacking of graphene sheets usually results in compact structure with a small interlayer distance and a long ion transfer distance, thus leading to low capacity and poor rate capability. Herein, partially reduced holey graphene oxide is prepared by simple H 2 O 2 treatment and subsequent low temperature reduction of graphene oxide, leading to large interlayer distance (0.434 nm), fast ion transport, and larger Na + storage space. The partially remaining oxygenous groups can also contribute to the capacity by redox reaction. As anode material for SIBs, the optimized electrode delivers high reversible capacity, high rate capability (365 and 131 mAh g −1 at 0.1 and 10 A g −1 , respectively), and good cycling performance (163 mAh g −1 after 3000 cycles at a current density of 2 A g −1 ), which is among the best reported performances for carbon‐based SIB anodes.