gebhart/patrepeval huggingface dataset:
Efficient burst image compression using H.265/HEVC (2014)

New imaging use cases are emerging as more powerful camera hardware is entering consumer markets. One family of such use cases is based on capturing multiple pictures instead of just one when taking a photograph. That kind of a camera operation allows e.g. selecting the most successful shot from a sequence of images, showing what happened right before or after the shot was taken or combining the shots by computational means to improve either visible characteristics of the picture (such as dynamic range or focus) or the artistic aspects of the photo (e.g. by superimposing pictures on top of each other). Considering that photographic images are typically of high resolution and quality and the fact that these kind of image bursts can consist of at least tens of individual pictures, an efficient compression algorithm is desired. However, traditional video coding approaches fail to provide the random access properties these use cases require to achieve near-instantaneous access to the pictures in the coded sequence. That feature is critical to allow users to browse the pictures in an arbitrary order or imaging algorithms to extract desired pictures from the sequence quickly. This paper proposes coding structures that provide such random access properties while achieving coding efficiency superior to existing image coders. The results indicate that using HEVC video codec with a single reference picture fixed for the whole sequence can achieve nearly as good compression as traditional IPPP coding structures. It is also shown that the selection of the reference frame can further improve the coding efficiency.
Fluorescence topography in biology. III: Characteristic deviations of tryptophan fluorescence in sera of patients with gynecological tumors. (1986)

The near-ultraviolet region of the total fluorescence (excitation-emission matrix) of human serum reflects essentially the fluorescence of protein-bound tryptophan. We examined topographically the tryptophan fluorescence of human serum. In comparison with fluorescence topograms from sera of healthy donors, sera of patients with gynecological malignancies showed significantly different patterns of tryptophan fluorescence, the major deviations being at 325 and 365 nm. In healthy donors, the tryptophan fluorescence intensity at 365 nm, expressed as percent of the maximum fluorescence intensity (i.e., at 337 nm) varied little, but was markedly lower for sera from patients with malignancies. We found no clear correlation between the extent of the fluorescence deviations and the relative concentration of the protein fractions as determined by electrophoresis. Furthermore, we could rule out inflammation in tumor patients as an explanation for this effect.
Transgenic Mice with Antisense RNA against the Nucleocapsid Protein mRNA of Mouse Hepatitis Virus. (1993)

In this study transgenic mice which expressed antisense RNA against the nucleocapsid protein gene of mouse hepatitis virus (MHV) under the control of RSV LTR were produced. These transgenic mice were able to transmit the foreign gene to their progeny in a Mendelian fashion. Antisense RNA was detected in various tissues from the transgenic mice including liver and brain, the target organs of MHV infection. One strain of transgenic mice derived from founder mouse No. 19 was more resistant to the lethal challenge of MHV than non-transgenic mice. The results of the present study show the ability of antisense RNA against the viral gene to protect against viral infection in vivo.
Simulating Quantum Computation by Contracting Tensor Networks (2008)

The treewidth of a graph is a useful combinatorial measure of how close the graph is to a tree. We prove that a quantum circuit with $T$ gates whose underlying graph has treewidth $d$ can be simulated deterministically in $T^{O(1)}\exp[O(d)]$ time, which, in particular, is polynomial in $T$ if $d=O(\log T)$. Among many implications, we show efficient simulations for log-depth circuits whose gates apply to nearby qubits only, a natural constraint satisfied by most physical implementations. We also show that one-way quantum computation of Raussendorf and Briegel (Physical Review Letters, 86:5188--5191, 2001), a universal quantum computation scheme with promising physical implementations, can be efficiently simulated by a randomized algorithm if its quantum resource is derived from a small-treewidth graph.
Effects of Ligand Substituents (F for H; OR for R) on Mesogenic Properties of M(Salen) Derivatives (M = Cu, Ni, VO). New Fluoro-Substituted Complexes and Crystal Structure of the Mesogen Ni(5-hexylSalen) (1995)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEffects of Ligand Substituents (F for H; OR for R) on Mesogenic Properties of M(Salen) Derivatives (M = Cu, Ni, VO). New Fluoro-Substituted Complexes and Crystal Structure of the Mesogen Ni(5-hexylSalen)Antony B. Blake, John R. Chipperfield, Wasif Hussain, Reinhard Paschke, and Ekkehard SinnCite this: Inorg. Chem. 1995, 34, 5, 1125–1129Publication Date (Print):March 1, 1995Publication History Published online1 May 2002Published inissue 1 March 1995https://pubs.acs.org/doi/10.1021/ic00109a020https://doi.org/10.1021/ic00109a020research-articleACS PublicationsRequest reuse permissionsArticle Views256Altmetric-Citations52LEARN 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 (2)»Supporting Information Supporting Information Get e-Alerts
Canada: Government exploits random violence (2014)

The Vancouver Sun published a description on October 24 of the troubled man who killed a guard in Ottawa two days before and then entered Canada's parliament building carrying his gun. The 32-year-old man, Michael Zehaf-Bibeau, was shot and killed by police.
Recent advances in GaAs/Ge solar cells (1991)

By growing the GaAs cell on a Ge substrate, the advantages of GaAs cells can be retained and the higher mechanical strength of the Ge makes larger, thinner GaAs cells possible. To conform to immediate user requirements, GaAs growth conditions were modified to eliminate the additional PV output at GaAs/Ge interface. To demonstrate acceptable cell manufacturing technology, the major areas in cell manufacture were analyzed and developed, and efficiency combined. Also the cells were successfully assembled on current lightweight arrays. The main areas of effort are discussed.
A High-Performance Hardwired CABAC Decoder (2007)

We present a high-performance hardwired context-based adaptive binary arithmetic decoder (CABAD) for H.264/AVC. Based on an analysis of decoding time for different types of syntax elements, we propose three parallel processing techniques. Our decoder takes 309 clock cycles to decode a typical I-type macroblock. It needs to run at only 45 MHz for 1080HD application. Therefore, our architecture is suitable for low power mobile applications.
Predication of multi-dimensional photonic crystal structures generated by multi-beam interference in holographic lithography (2005)

Photonic crystals (PCs) are synthetic micro-structures which have periodical refraction index variations and produce photonic band gaps similar to electronic band gaps produced by the crystal potentials of semiconductors. Different methods have been proposed and demonstrated to fabricate two- or three-dimensional photonic crystal structures. Among them, the holographic lithography method, in which multi-beam interference is employed, offers a number of advantages, including its ability to create large volume of periodic structures through an irradiation process, the uniformity of period, and more degrees of freedom to control the structures. In this study, a multi-beam interference model is presented for predicting the mulit-dimensional photonic crystal structures. Various parameters, including beam propagation and polarization directions, beam intensities, and phase shifts are considered. Calculations have been carried out to simulate two four-beam configurations which have been popularly used in the fabrication of photonic crystals. It has been demonstrated that the contours of the interference pattern are related to the polarization states, the intensity ratios among the four beams, and the phase delays. Therefore, by controlling the beam intensities, polarization directions, and phase delays, different structures can be obtained. The results presented in this study provide a useful guide for choosing various optical parameters and selecting proper photoresists to fabricate 2D and 3D photonic crystal structures.
Evaluation of a Published in Silico Model and Construction of a Novel Bayesian Model for Predicting Phospholipidosis Inducing Potential (2007)

The identification of phospholipidosis (PPL) during preclinical testing in animals is a recognized problem in the pharmaceutical industry. Depending on the intended indication and dosing regimen, PPL can delay or stop development of a compound in the drug discovery process. Therefore, for programs and projects where a PPL finding would have adverse impact on the success of the project, it would be desirable to be able to rapidly identify and screen out those compounds with the potential to induce PPL as early as possible. Currently, electron microscopy is the gold standard method for identifying phospholipidosis, but it is low-throughput and resource-demanding. Therefore, a low-cost, high-throughput screening strategy is required to overcome these limitations and be applicable in the drug discovery cycle. A recent publication by Ploemen et al. (Exp. Toxicol. Pathol. 2004, 55, 347-55) describes a method using the computed physicochemical properties pKa and ClogP as part of a simple calculation to determine a compound's potential to induce PPL. We have evaluated this method using a set of 201 compounds, both public and proprietary, with known in vivo PPL-inducing ability and have found the overall concordance to be 75%. We have proposed simple modifications to the model rules, which improve the model's concordance to 80%. Finally, we describe the development of a Bayesian model using the same compound set and found its overall concordance to be 83%.
Update on punctal plugs. (2007)

Punctal plugs have offered a safe and often reversible treatment for aqueous-deficient dry eye for over three decades. However, they represent only one tool in our armamentrarium to help patients with dry eyes, and plugs do have limitations. This article briefly reviews the history of occlusive treatments for aqueous tear deficiency and provides an update of recent advancements in punctal and canalicular occlusive materials and techniques.
Synthesis and Antiproliferative Activity of Novel 3-(Indazol-3-yl)-quinazolin-4(3H)-one and 3-(Indazol-3-yl)-benzotriazin-4(3H)-one Derivatives (1999)

Several new 3-(indazol-3-yl)-quinazolin-4(3H)-one and 3-(indazol-3-yl)-benzotriazin-4(3H)-one derivatives 5 and 6 were synthesized and tested for their in vitro antiproliferative activity against Raji, K562, and K562-R cell lines. The pharmacological screening showed that some 2, 6, or 7-substituted quinazolinones 5 posses a significant antiproliferative activity, with a percentage growth inhibition ranging from 44.8% to 100% at 50 microM, which was higher than that showed by the unsubstituted derivative 5a previously synthesized. For the most active compounds 5d, 5f, and 5g the IC50 were recorded.
Optical Wave Propagation in Kerr Media (2013)

Optical wave propagation and interaction are important effects usable in designing and implementing various photonic devices ranging from passive splitters to active switches to light amplifiers. The material aspects are crucial as strong effects are desirable for efficient and robust devices. Electronics has its silicon that is an amazing rather universal material that makes it possible to implement microelectronics chips of unthinkable performance and functionalities. Photonics does not have such a common material, and therefore one has to choose suitable material system for a given application. However, with silicon being the best technologically mastered material, attempts have been made to employ it also in the implementation of photonic functions. Examples include electro-optic modulators and, of course, high speed photodetectors.
Haptic Telepresent Control Technology Applied to Disposal of Explosive Ordnances: Principles and Experimental Results (2005)

This paper presents a novel approach for performing disposal of explosive ordnances by application of bimanual haptic telepresent control technology. For improved task execution the proposed system enables an operator to perceive multimodal feedback, especially de- tailed kinesthetic feedback, from a remote task environment. Details of a developed experimental setup, comprising a two-handed human system interface and a corresponding two-arm teleoperator, are reported. In particular a novel structure adapting architecture for control of the display and manipulator is introduced. Human-system performance is enhanced by means of stereo visualization of the remote task environment with overlayed Augmented Reality assis- tance. In addition, an algorithm for avoidance of dangerous manipulator configurations is supported by augmented force feedback. The usability and effectiveness of the developed bimanual telepresence system are demonstrated by focusing execution of demining operations in a remote environment
Drag reduction in the turbulent flow of fiber suspensions (1974)

Abstract An analysis of the velocity profile and pressure drop relationships for turbulent flow of fiber suspensions through smooth tubes was evaluated experimentally over a range of flow rates, tube sizes, fiber concentrations, and fiber geometries (aspect ratios). This work shows that drag reduction in these systems, in marked contrast to that in viscoelastic polymeric fluids, involves processes in the turbulent core of the velocity field. As a result the drag reduction achieved is independent of the scale of the system. The implications of these results with respect to rates of heat and mass transport are considered in a preliminary way. The measurement of such transport rates, and of the turbulent velocity profiles in dilute suspensions, is seen to be of mechanistic interest.
Modeling Well Inflow Control with Flow in Both Annulus and Tubing (2009)

Abstract We present a model for well inflow control devices (ICDs) that includes the effects of an annulus in which the flow between the ICDs is open or partially obstructed by the presence of packers, and we describe the application of this model in a full-field simulator. Flow in an open or partially obstructed annulus requires looped flowpaths to be modeled within the well. We describe the extension to the formulation of the well model together with considerations to ensure that the resulting equations have a Jacobian matrix that is invertible and explain the necessary modifications to the techniques used to solve the resulting linear system. The effect of simulating flow in both the annulus and the tubing was investigated in two case studies involving ICDs: a synthetic case and a sector of a North Sea field model. Results showing significant differences between the inflow profiles of horizontal wells with and without packers in the annulus are presented.
Orientation Estimation Using a Quaternion-Based Indirect Kalman Filter With Adaptive Estimation of External Acceleration (2010)

This paper is concerned with orientation estimation using inertial and magnetic sensors. A quaternion-based indirect Kalman filter structure is used. The magnetic sensor output is only used for yaw angle estimation using two-step measurement updates. External acceleration is estimated from the residual of the filter and compensated by increasing the measurement noise covariance. Using the direction information of external information, the proposed method prevents unnecessarily increasing the measurement noise covariance corresponding to the accelerometer output, which is not affected by external acceleration. Through numerical examples, the proposed method is verified.
Lymphocyte Proliferative Response to P6 of <i>Haemophilus influenzae</i> Is Associated with Relative Protection from Exacerbations of Chronic Obstructive Pulmonary Disease (2002)

Chronic obstructive pulmonary disease (COPD) is characterized by periodic exacerbations, some of which are caused by nontypeable Haemophilus influenzae (NTHI). P6 is an outer membrane lipoprotein that is highly conserved among strains of NTHI. We hypothesized that lymphocytes from patients with COPD who have exacerbations due to NTHI have a decreased ability to recognize P6. The in vitro lymphocyte proliferative response to P6 in 36 patients with COPD and 12 healthy control subjects was studied. Ten patients who had exacerbations due to NTHI in the previous 12 months showed statistically significant lower proliferation to P6 (stimulation index, log transformed mean +/- standard error 0.82 +/- 0.17) compared with 26 patients who had no exacerbations due to NTHI in the previous 12 months (1.42 +/- 0.13) and to 12 healthy control subjects (1.61 +/- 0.16). These three groups had no significant difference in the lymphocyte proliferative response to tetanus toxoid. There was no difference in serum antibody levels to P6 in the two groups with COPD. These results indicate that decreased proliferation of T cells to P6 is associated with exacerbations of COPD and suggest that the ability of T cells to recognize P6 is associated with relative protection from exacerbations due to NTHI.
Porphyrin−Cyclodextrin Conjugates as a Nanosystem for Versatile Drug Delivery and Multimodal Cancer Therapy (2009)

The porphyrin-cyclodextrin conjugates were prepared and tested for selective and effective multifunctional drug delivery and therapy. The porphyrin receptor system combines efficient binding of the selected drug to the cyclodextrin cavity and photosensitizing properties of the porphyrin moiety with high accumulation of the whole complex in cancer tissue. The combined effect of chemotherapy and photodynamic therapy is demonstrated by in vitro and in vivo studies.
Probing Intermetallic Coupling in Dinuclear N-Heterocyclic Carbene Ruthenium(II) Complexes (2011)

A series of bimetallic N-heterocyclic carbene (NHC) ruthenium(II) complexes were synthesized, which comprise two [RuCl(2)(cymene)(NHC)] units that are interlinked via the NHC nitrogens by alkyl chains of different length. Electrochemical characterization revealed two mutually dependent oxidation processes for the complex with a methylene linker, indicating moderate intramolecular electronic coupling of the two metal centers (class II system). The degree of coupling decreases rapidly upon increasing the number of CH(2) units in the linker and provides essentially decoupled class I species when propylene or butylene linkers are used. Electrochemical analyses combined with structural investigations suggest a through-bond electronic coupling. Replacement of the alkyl linker with a p-phenylene group afforded cyclometalated complexes, which were considerably less stable. The electronic coupling in the methylene-linked complex and the relatively robust NHC-ruthenium bond may provide access to species that are switchable on the molecular scale.
Organic Functionalized Carbon Nanotubes (2002)

A well documented methodology based on the 1,3 dipolar cycloaddition of azomethine ylides for solubilizing carbon nanotubes is reported. The products, organic functionalized carbon nanotubes, were characterized by analytical techniques as well as transmission electron microscopy.
Modeling the effect of subsurface interface defects on contact stiffness for ultrasonic atomic force microscopy (2004)

We present a model predicting the effects of mechanical defects at layer interfaces on the contact stiffness measured by ultrasonic atomic force microscopy (AFM). Defects at subsurface interfaces result in changes at the local contact stiffness between the AFM tip and the sample. Surface impedance method is employed to model the imperfections and an iterative algorithm is used to calculate the AFM tip-surface contact stiffness. The sensitivity of AFM to voids or delaminations and disbonds is investigated for film-substrate combinations commonly used in microelectronic structures, and optimum defect depth for maximum sensitivity is defined. The effect of contact force and the tip properties on the defect sensitivity are considered. The results indicate that the ultrasonic AFM should be suitable for subsurface detection and its defect sensitivity can be enhanced by adjusting the applied force as well as by judicious choice of the AFM tip material and geometry.
Successes and Failures of Bacteriophage Treatment of Enterobacteriaceae Infections in the Gastrointestinal Tract of Domestic Animals (2012)

found bacteriophages to be the second most abundant uncultured biological group in their analysis of human feces and Furhman (1999) suggests that bacteriophages could be responsible for as much as 50% of bacterial death in surface waters. It has been suggested that bacteriophages in cattle help maintain microbial diversity and balance, allowing the ecology of the gut, particularly the rumen, to adapt to changes in feed and water intake Bacteriophages lytic for E. coli and Salmonella were isolated from cattle feedlots with no correlation between presence of E. coli O157:H7 or Salmonella and bacteriophages against the specific pathogen ( Salmonella targeted bacteriophages were isolated from Salmonella-positive poultry farms, with bacteriophages found at only one Salmonella-negative farm. A total of seven bacteriophages were isolated from farms that were Salmonella-positive, and two bacteriophages from the single Salmonella-negative chicken house This might suggest that as environmental Salmonella increased, a near-simultaneous increase in bacteriophages may have also occurred. The hypothesis corresponds with other reports where it was found that bacteriophages within treated animals remained in the animal for the duration of the infection, but once the bacterial host was no longer present, the presence of bacteriophages also rapidly dropped (Barrow et al.,
Performance of a digital stereo FM modulator with reduced output resolution (1997)

A digital stereo FM modulator has been built using a direct digital synthesiser (DDS). The system incorporates a digital stereo generator to provide the modulating signal. The stereo generator was sampled at 228 kHz and interpolation by 2 was carried out to move the unwanted FM sidebands further away from the FM carrier, in order to facilitate filtering. The paper presents the effects of quantisation noise on the system output by reduction in output resolution. Demodulation has been carried out so that the signal to noise and distortion ratios (SINAD) could be measured for all spectral components /spl les/53 kHz with different monotone modulation frequencies and varying output resolution. An FM simulation of this process has been developed and the FM spectra produced by it are shown to match the experimental spectra almost exactly. These spectra complied with broadcast standards even with as little as a 6 bit output. The experimental system, with a 10 bit output, gives a SINAD performance which is /spl ges/77 dB.