gebhart/patrepeval huggingface dataset:
Content adaptive quantization scheme based on visual perception for video coding (2008)

This paper proposes a new quantization scheme which fully exploits the human visual perception and the local eye sensitivity characteristic in two layers. This new quantization scheme classifies macro-blocks into different categories and classifies frequency coefficients in the same block into different frequency strips, then adjusts the quantization parameter according to different categories or strips to reserve more sensitive details of video. Experiments results show that the new quantization scheme can achieve better subjective video quality with lower bitrates.
Calibration of Housing Parameters for Underwater Stereo-Camera Rigs (2011)

When using perspective cameras underwater, the underwater housing with its glass interface between water and air causes the light rays to change their direction due to refraction. In applications where geometrical properties of images are exploited without explicitly modeling refraction, i.e. when using the perspective pinhole camera model, this leads to a systematical error. This error is depending on the housing configuration like distance between camera and glass interface and angle between glass interface normal and optical axis. In this paper, we analyze the calibration of those parameters using a camera model explicitly considering refraction. The goal is to determine those parameters without the need of handling a calibration target underwater, which is cumbersome, if not impossible.
Detecting wheels of vehicle in stereo images (2002)

A method for detecting the wheels of a vehicle in stereo image pairs is presented. The method consists of two steps: geometrical transformation and circle extraction. The geometrical transformation uses the disparity values obtained from a stereo image pair to calculate the parameters of the plane containing wheels of the vehicle. These parameters are used to transform any elliptical wheels contained in the plane to circular ones which can be extracted by the circle extraction algorithm. The circle extraction algorithm consists of template matching and the Hough transform. In order to save computation and improve the results in the Hough transform, two constraints, the neighbor-region edge connectivity and the gradient direction of each edge point, are used to eliminate noncircular edge points. Experimental results show that these two constraints do eliminate noncircular edge points and preserve any circle embedded in edges. The final results show that the proposed method can detect and locate the wheels of a vehicle successfully.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Rubber shark as user interface (2006)

This paper presents a simple means to tag real world physical objects with digital information and functions. The system is low-cost and easily distributable to allow the general public outside the laboratory and academic environments to explore and experiment with physical-digital object couplings as an interface. The system is a tool to test out conceptual physical-digital mapping and metaphor and to prototype elements of Tangible User Interface. It can simply enhance the Graphical User Interface experience.
Microwave-Assisted Polycondensation via Direct Arylation of 3,4-Ethylenedioxythiophene with 9,9-Dioctyl-2,7-dibromofluorene (2013)

For synthesis of π-conjugated polymers, polycondensation via direct arylation reactions of C–H bonds in aromatic monomers with dibromo-arylenes has attracted increasing attention as a simple synthetic method in which the preparation of organometallic reagents is unnecessary. To develop direct arylation polycondensation for practical use in the synthesis of optoelectronic polymer materials, microwave-assisted reactions were investigated and optimized in terms of a kind of base, concentration, reaction time, and amount of catalyst. Under the optimized conditions, the microwave-assisted direct arylation of 3,4-ethylenedioxythiophene with dibromofluorene for 30 min with catalyst (1 mol %) gave the corresponding polymer with an extremely high molecular weight up to 147 000. The high molecular weight of the polymer enables formation of a large and flexible self-standing film, leading to an advantage in fabricating organic thin-film devices. The elemental analysis and MALDI-TOF-MS reveal that the polymer has high purity and no bromo- and metallo-terminals. Because only microwave-assisted direct arylation provided these features in the polymer, the present method is superior to conventional methods. Therefore, microwave-assisted polycondensation via direct arylation methodology lends itself well to practical application using inherent product from economical and environmental points of view for the synthesis of pure optoelectronic materials.
Can Multi-rate Radios reduce end-to-end delay in mesh networks? A simulation case study (2005)

International audience
Polymerization Hazard (2005)

ADVERTISEMENT RETURN TO ISSUEPREVCorrespondenceNEXTPolymerization HazardDavid J. am Ende, David R. Bill, David B. Ripin, and Nancy A. SageView Author Information Chemical R&D, Eastern Point Road, Pfizer, Inc., Groton, Connecticut 06344, U.S.A. Cite this: Org. Process Res. Dev. 2005, 9, 6, 702Publication Date (Web):October 14, 2005Publication History Received20 September 2005Published online14 October 2005Published inissue 1 November 2005https://pubs.acs.org/doi/10.1021/op050175zhttps://doi.org/10.1021/op050175zletterACS PublicationsCopyright © 2005 American Chemical SocietyRequest reuse permissionsArticle Views534Altmetric-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 Other access optionsGet e-Alertsclose SUBJECTS:Addition reactions,Condensation,Polymerization,Thermal analysis,Thermal polymerization Get e-Alerts
Faculty Opinions recommendation of A herpes simplex virus type 1 mutant with gamma 34.5 and LAT deletions effectively oncolyses human U87 glioblastomas in nude mice. (2002)

OBJECTIVE: We previously constructed a novel recombinant herpes simplex virus with deletions in the gamma 34.5 and LAT genes. LAT was replaced by the gene for green fluorescent protein, to allow monitoring of viral transduction in vitro and in vivo. We previously confirmed that this virus, designated DM33, retains its oncolytic properties in vitro and is inhibited with respect to spontaneous reactivation. The objective of this study was to demonstrate the therapeutic efficiency of this virus in the treatment of human gliomas in nude mice.METHODS: Thirty BALB/c nude mice underwent stereotactic implantation of U-87 MG gliomas in the right corpus striatum. Subsequently, mice received intratumoral inoculations of either DM33 (n = 20) or virus-free medium (n = 10). Ten mice given injections of DM33 were also treated intraperitoneally with ganciclovir.RESULTS: Intratumoral administration of DM33 to nude mice bearing intracranial U-87 MG human gliomas prolonged survival times, compared with saline-treated control animals (P < 0.05). Histological analyses of treated tumors demonstrated decreased tumor size and tumor cell lysis. Control tumors averaged 7.05 +/- 0.83 mm(2) (mean +/- standard error), whereas the average for the DM33 group was 4.61 +/- 1.57 mm(2) and that for the DM33 plus ganciclovir group was 2.49 +/- 1.32 mm(2). The difference in tumor sizes between the control group and the DM33 plus ganciclovir group was statistically significant (P = 0.044). Viral infection was limited to the tumors, and replication was not observed in normal neurons or glia.CONCLUSION: The efficacy of this virus in the treatment of experimental gliomas, its safety (as confirmed by its inability to reactivate), and its attenuated neurovirulence make DM33 a promising oncolytic agent for glioma therapy. PMID: 11841729 Funding information This work was supported by: NINDS NIH HHS, United States Grant ID: NS02232 NEI NIH HHS, United States Grant ID: EY07566
Measurement of Fiber/Matrix Interfacial Shear Stress at Elevated Temperatures (1992)

An apparatus for measurement of the fiber/matrix interfacial shear stress at temperatures up to 1100° is described. Equipment was used to measure interfacial properties as a function of temperature in two ceramic‐matrix composites and one metal‐matrix composite. In the composites where the thermal expansion of the matrix was higher than that of the fiber, the interfacial shear stress decreased with temperature. The opposite trend was observed in a system with low matrix thermal expansion. The change of the interfacial shear stress with temperature of all the composites studied can be fully explained by considering the fiber/matrix expansion differences.
Hausdorff distance: A new target localization using single hydrophone (2017)

National audience
Linkage and association between serotonin 2A receptor gene polymorphisms and bipolar I disorder (2003)

Several inconsistent associations between bipolar I disorder (BD1) and polymorphisms of the genes encoding the serotonin 2A receptor (HTR2A) have been published. We conducted the Transmission Disequilibrium Test (TDT) and case-control comparisons involving nine single nucleotide polymorphisms at the serotonin 2A receptor gene (four SNPs of HTR2A exons and five flanking SNPs). Comparison of BD1 cases (n = 93) with a group of unrelated population based controls (n = 92) revealed associations with SNPs on exons 2 and 3 (516C/T and 1354C/T, respectively), consistent with haplotype-based differences. Analysis of the cases and their available parents using the TDT suggested significant linkage and associations with 1354C/T, as well as haplotypes bearing this SNP. Our results support an etiological role for HTR2A in BD1. In view of the relatively small sample, replicate studies using large samples are needed.
Entrainment and Turn-Taking in Human-Human Dialogue (2015)

Interlocutors in spoken conversations have been shown to entrain, or become similar to each other, in multiple dimensions. We investigate the relationship between entrainment and turn-taking. We show that speakers entrain on turn-taking behaviors such as the distribution of turn types and degree of latency between turns, and that entrainment at turn exchanges is related to some extent to the type of turn exchange.
Using of Wavelets for Secret Key Generation: A Measurement Based Study (2018)

For the physical layer (PHY) key generation, two distant nodes exploit the reciprocal channel coefficients as a shared secret. These nodes may obtain erroneous channel estimates and generate highly correlated but not identical secret keys. In this work, we analyze the key error rate (KER) performances when different wavelet families are utilized as a pre-processing step in PHY key generation. Measurement-based KER results show that selection of the wavelet can significantly change the performance.
Resolving the space-group ambiguity of crystals of tomato fruit polygalacturonase (2003)

The first polygalacturonase from a plant, tomato fruit PG2, has been crystallized and data have been collected to a resolution of 1.87 A. The autoindexing program strongly favors one of the primitive orthorhombic cells. A plausible molecular-replacement solution for two molecules in the asymmetric unit has been found for data assigned to space group P2(1)2(1)2(1). Although the numerical criteria and the electron-density maps are reasonable for this solution, manually adjusted models do not refine to an R factor below 0.48. Visual inspection of hkl Bragg planes does not reveal a breakdown in mm symmetry. Nevertheless, the correct space group has been determined to be P2(1), with similar unit-cell parameters, a beta angle of 90.04 degrees and four molecules in the asymmetric unit. The R(sym) of 0.053 for data processed in P2(1)2(1)2(1) is very similar to the R(sym) of 0.047 for the same data processed in P2(1). Comparisons of the intermediate results using the P2(1)2(1)2(1) and P2(1) data sets are provided and the subtle indications of an initial erroneous space-group assignment are discussed.
Preparation of Zinc Oxide Nanoparticles by Using Microwave-induced Plasma in Liquid (2010)

Abstract As a rapid and easy liquid process for preparation of ZnO nanoparticles, we propose here a microwave-induced plasma in water. Generation of plasma in liquid has been achieved at atmospheric pressure without external gas bubbling. After only several minutes of microwave irradiation, about 0.3 g of ZnO nanoparticles was obtained from an aqueous solution of zinc(II) acetate under alkaline conditions.
Near-field mapping of spectroelectrochemical properties of polyaniline (2010)

We combine in this work the measurement of local optical transmission in the near-field with the mapping of the third harmonic generation of semiconducting polymer samples. The use of a linear method with the scanning near-field optical microscope (SNOM) and a nonlinear method with the Third Harmonique Generation (THG) microscope reveal the variation and the nature of the nanomorphology of doped polyaniline thin films.
Location of Corona and Measurement of Space Charge in Transformer Oil (1985)

An investigation was made in order to develop a location technique of corona discharge in insulating oil, in view of the development of the UHV transformer. This paper describes the principle of analyzing the corona location by making use of electrostatic probes. The corona produces a space charge in the oil, and induces charges on the probes electrostatically. Thus, the location as well as the space charge of the corona can be analyzed.
Commentary on Separation, autism, and residential treatment: tapping the strengths of the ASD parent. (2008)

Our understanding of autism and PDD’s (“ASD”) has leapt forward over the last two decades, but it still confounds the most experienced clinicians. Research is beginning to provide some scientific data on ASD, but much remains unknown.

There is solid research to refute Bettelheim’s “Refrigerator Mother” hypothesis. Studies also report that most ASD children do not differ in early attachment behaviours from their typical counterparts. Although a subset may display “disorganized attachment”, even this may be more attributable to associated intellectual disabilities. The literature on the interactions between ASD and co-morbid mental health conditions is scarce. We know these children suffer a markedly higher risk for psychiatric disorders (often presenting in atypical patterns). Yet, the manifestation and impact of a psychiatric syndrome in a child with ASD remains largely speculative.

The best clinical research into improving the outcomes for children with ASD remains flawed, but points to the importance of early and meaningful support for child and parent development. Though informed pharmacological treatment can sometimes be very helpful, it does not replace adequate attention to the support needs of families. The case history of J.D. reflects the remarkable resilience of parents in spite of daunting childhood disorders, and how appropriate supports promote better outcomes for all.
Slurry-Based Processing of Solid Electrolytes: A Comparative Binder Study (2018)

Limited energy density of today's Li-ion battery technologies demands for novel cell technologies, such as the all-solid-state battery (ASSB). In order to achieve high energy densities and enable large-scale processing, thin and flexible solid electrolyte (SE) layers have to be implemented. This study focuses on slurry-based processing of the sulfidic solid electrolyte Li10SnP2S12 (LSPS). Various polymers were investigated concerning their suitability as binders for thin and freestanding SE sheets. We conducted a parameter study in order to optimize e.g. LSPS-to-binder ratio, solids content and porosity. Significant differences were found with regard to the minimum amount of binder required for mechanically stable sheets as well as the homogeneity, density and flexibility of the resulting SE layers. The impacts of binder type and weight fraction on ionic conductivity were examined through lithium diffusion measurements. Impedance analysis was conducted in comparison, proving sufficiently high ionic conductivity for potential application of the SE sheets in ASSB. This work highlights the important role of the polymeric binder in slurry-based processing of SEs and gives an impression how important a well-considered selection of parameters is to achieve good processing properties as well as desirable features for the final SE sheet.
Detection and classification of underwater acoustic transients using neural networks (1994)

Underwater acoustic transients can develop from a wide variety of sources. Accordingly, detection and classification of such transients by automated means can be exceedingly difficult. This paper describes a new approach to this problem based on adaptive pattern recognition employing neural networks and an alternative metric, the Hausdorff metric. The system uses self-organization to both generalize and provide rapid throughput while utilizing supervised learning for decision making, being based on a concept that temporally partitions acoustic transient signals, and as a result, studies their trajectories through power spectral density space. This method has exhibited encouraging results for a large set of simulated underwater transients contained in both quiet and noisy ocean environments, and requires from five to ten MFLOPS for the implementation described.
ChemInform Abstract: Bromination of exo‐ and endo‐Tricyclo(3.2.1.02,4)oct‐6‐ene. (1995)

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.
Role of Tyrosine Residues in Interactions between Casein Components (1974)

It was indicated from ultraviolet difference spectra and ultracentrifugal experiments that
Activating Thiolate‐Based Imidoalkylidene Tungsten(VI) Metathesis Catalysts by Grafting onto Silica (2015)

Abstract In view of the strong σ‐donor ability of thiolate ligands, a silica‐supported tungsten alkylidene complex was prepared. While the activity of the molecular complex in alkene metathesis was not significant, the activity of the silica‐supported analogue is greatly enhanced, thus illustrating the importance of dissymmetry at the metal center in d 0 metathesis catalysts and the specific properties of surface siloxy ligands in activating metathesis catalysts.
DTC Linearization via Mismatch-Noise Cancellation for Digital Fractional-N PLLs (2022)

Digital-to-time converter (DTC) based quantization noise cancellation (QNC) has recently been shown to enable excellent fractional- <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$N$ </tex-math></inline-formula> PLL performance, but it requires a highly-linear DTC. Known DTC linearization strategies include analog-domain techniques which involve performance tradeoffs and digital predistortion techniques which converge slowly relative to typical required PLL settling times. Alternatively, a DTC implemented as a cascade of 1-bit DTC stages can be made highly linear without special techniques, but such DTCs typically introduce excessive error from component mismatches which has so far hindered their use in low-jitter PLLs. This paper presents a background calibration technique that addresses this issue by adaptively canceling error from DTC component mismatches. The technique is entirely digital, is compatible with a large class of digital fractional- <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$N$ </tex-math></inline-formula> PLLs, and has at least an order of magnitude lower convergence time than the above-mentioned predistortion techniques. The paper presents a rigorous theoretical analysis closely supported by simulation results which quantifies the calibration technique’s convergence time and noise performance.
Naturally occurring missense mutation in the polymerase gene terminating hepatitis B virus replication (1991)

A hepatitis B virus (HBV) genome was cloned from human liver. Numerous mutations in all viral genes define this HBV DNA as a mutant, divergent from all known HBV DNA sequences. Functional analyses of this mutant demonstrated a defect blocking viral DNA synthesis. The genetic basis of this defect was identified as a single missense mutation in the 5' region of the viral polymerase gene, resulting in the inability to package pregenomic RNA into core particles. The replication defect could be trans-complemented by a full-length wild-type, but not by a full-length mutant or 3'-truncated wild-type, polymerase gene construct. Our findings indicate a critical role of the 5' polymerase gene region in the life cycle of the virus and suggest that introducing missense mutations in this region can be a strategy to terminate viral replication in vivo.
Synthesis and Study of Janus Bis(carbene)s and Their Transition‐Metal Complexes (2006)

Wilde Zweien: Von der Katalyse über Materialwissenschaften bis zur Biologie können N-heterocyclische Carbene (NHCs) als eine Art Jokerliganden angesehen werden. Eine neue Reihe „doppelgesichtiger“ (Janus-artiger) Liganden, die aus gegenüberliegenden NHCs mit einem ankondensierten Arenlinker bestehen, wurde für die Synthese diskreter Dimetallkomplexe genutzt. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2001/2006/z601583_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
Bulk Copper-Nanodiamond Nanocomposites; Processing and Properties (2008)

Copper has widespread use as engineering material, because of its structural and functional properties, notably high thermal and electrical conductivity. A major drawback of this base metal and its alloys is a relatively low hardness. This precludes its utilization in applications in which both high conductivity and high strength/hardness are needed, e.g. in injection moulds for plastics. Nanostructured metals and nanocomposites are ways to address the low hardness problem, provided the nanostructured material is thermally stable during processing and service. In the present research, composite powders, with 5 to 30 at % nanodiamond, were consolidated into bulk samples. The copper-nanodiamond composite powders were vacuum encapsulated and extruded at 600°C. A significant proportion of the initial hardness in the powders is retained after extrusion. Transmission electron microscopy (TEM) of the extruded material indicates good bonding between the nanodiamond particles and the copper matrix. Raman spectroscopy on the consolidated samples evidences the presence of graphite, possibly due to partial disintegration of ultradisperse nanodiamond agglomerates.