gebhart/patrepeval huggingface dataset:
Hybrid bioinorganic approach to solar-to-chemical conversion (2015)

Natural photosynthesis harnesses solar energy to convert CO2 and water to value-added chemical products for sustaining life. We present a hybrid bioinorganic approach to solar-to-chemical conversion in which sustainable electrical and/or solar input drives production of hydrogen from water splitting using biocompatible inorganic catalysts. The hydrogen is then used by living cells as a source of reducing equivalents for conversion of CO2 to the value-added chemical product methane. Using platinum or an earth-abundant substitute, α-NiS, as biocompatible hydrogen evolution reaction (HER) electrocatalysts and Methanosarcina barkeri as a biocatalyst for CO2 fixation, we demonstrate robust and efficient electrochemical CO2 to CH4 conversion at up to 86% overall Faradaic efficiency for ≥ 7 d. Introduction of indium phosphide photocathodes and titanium dioxide photoanodes affords a fully solar-driven system for methane generation from water and CO2, establishing that compatible inorganic and biological components can synergistically couple light-harvesting and catalytic functions for solar-to-chemical conversion.
New algorithms for 2D and 3D point matching (1998)

A fundamental open problem in computer vision—determining pose and correspondence between two sets of points in space—is solved with a novel, fast, robust and easily implementable algorithm. The technique works on noisy 2D or 3D point sets that may be of unequal sizes and may differ by non-rigid transformations. Using a combination of optimization techniques such as deterministic annealing and the softassign, which have recently emerged out of the recurrent neural network/statistical physics framework, analog objective functions describing the problems are minimized. Over thirty thousand experiments, on randomly generated points sets with varying amounts of noise and missing and spurious points, and on hand-written character sets demonstrate the robustness of the algorithm.
Range meter using M-sequence bar cord for a marker. (2000)

The M-sequence is used in the field of the time domain information theory because of sharp auto-correlation characteristic. We proposed to use the sequence in a spatial domain such as a bar-cord maker for a range meter. It could be confirmed that the M-sequence bar-cord could be used with range meter as a result.
Sacroiliac Arthrodesis Using a Posterior Midline Fascial Splitting Approach and Pedicle Screw Instrumentation: A New Technique (2001)

Many techniques for sacroiliac arthrodesis have been described. No single technique is universally accepted as the standard. The current report describes a new technique using a midline fascial-splitting approach and pedicle screw instrumentation. Four consecutive patients with nontraumatic disorders of the sacroiliac joint who have undergone successful arthrodesis by the described technique are presented. One patient had a spontaneous sacroiliac disruption secondary to rheumatoid arthritis, and was returned to her previous ambulatory status after fusion of the disrupted joint. Her fusion remained stable for 9 years postoperatively. The others had degeneration of the sacroiliac joint that was symptomatically improved by arthrodesis. The described method of sacroiliac arthrodesis may be an attractive option for surgeons who are familiar with pedicle screw instrumentation techniques.
Function of gene 49 of bacteriophage T4. I. Isolation and biochemical characterization of very fast-sedimenting DNA (1976)

Very fast-sedimenting DNA was isolated from cells after infection with gene 49 defective phage T4. This DNA appeared membrane bound throughout the time after infection and could be isolated either in the membrane-bound form (M-DNA) or free of membrane (released DNA) depending on the lysis procedure. Released DNA formed complexes of marked stability with sedimentation velocities between 1,400S and 2,100S. These complexes did not seem to contain material other than DNA. This was concluded from the results of RNA, protein, and membrane labeling experiments and density analysis. In addition, these complexes were resistant against treatment with n-butanol, phenol. chloroform-methanol, sodium dodecyl sulfate, Sarkosyl, Pronase, RNase, or lysozyme. The observation that more then 90% of the purified very fast-sedimenting DNA is retrapped by magnesium-Sarkosyl crystals (M-band) suggests that the M-band technique may not be sufficient as a test for DNA-membrane attachment.
Automatic verification of timed concurrent constraint programs (2006)

The language Timed Concurrent Constraint (tccp) is the extension over time of the Concurrent Constraint Programming (cc) paradigm that allows us to specify concurrent systems where timing is critical, for example reactive systems . Systems which may have an infinite number of states can be specified in tccp. Model checking is a technique which is able to verify finite-state systems with a huge number of states in an automatic way. In the last years several studies have investigated how to extend model checking techniques to systems with an infinite number of states. In this paper we propose an approach which exploits the computation model of tccp. Constraint based computations allow us to define a methodology for applying a model checking algorithm to (a class of) infinite-state systems. We extend the classical algorithm of model checking for LTL to a specific logic defined for the verification of tccp and to the tccp Structure which we define in this work for modeling the program behavior. We define a restriction on the time in order to get a finite model and then we develop some illustrative examples. To the best of our knowledge this is the first approach that defines a model checking methodology for tccp.
Integrating Proteomic, Transcriptional, and Interactome Data Reveals Hidden Components of Signaling and Regulatory Networks (2009)

Cellular signaling and regulatory networks underlie fundamental biological processes such as growth, differentiation, and response to the environment. Although there are now various high-throughput methods for studying these processes, knowledge of them remains fragmentary. Typically, the majority of hits identified by transcriptional, proteomic, and genetic assays lie outside of the expected pathways. These unexpected components of the cellular response are often the most interesting, because they can provide new insights into biological processes and potentially reveal new therapeutic approaches. However, they are also the most difficult to interpret. We present a technique, based on the Steiner tree problem, that uses previously reported protein-protein and protein-DNA interactions to determine how these hits are organized into functionally coherent pathways, revealing many components of the cellular response that are not readily apparent in the original data. Applied simultaneously to phosphoproteomic and transcriptional data for the yeast pheromone response, it identifies changes in diverse cellular processes that extend far beyond the expected pathways.
Fast Inter-Mode Selection in the H.264/AVC Standard Using a Hierarchical Decision Process (2008)

A complexity reduction algorithm tailored for the H.264/AVC encoder is described. It aims to alleviate the computational burden imposed by Lagrangian rate distortion optimization in the inter-mode selection process. The proposed algorithm is described as a hierarchical structure comprising three levels. Each level targets different types of macroblocks according to the complexity of the search process. Early termination of mode selection is triggered at any of the levels to avoid a full cycle of Lagrangian examination. The algorithm is evaluated using a wide range of test sequences of different classes. The results demonstrate a reduction in encoding time of at least 40%, regardless of the class of sequence. Despite the reduction in computational complexity, picture quality is maintained at all bit rates.
Toward a Theory of Shape from Specular Flow (2007)

The image of a curved, specular (mirror-like) surface is a distorted reflection of the environment. The goal of our work is to develop a framework for recovering general shape from such distortions when the environment is neither calibrated nor known. To achieve this goal we consider far-field illumination, where the object-environment distance is relatively large, and we examine the dense specular flow that is induced on the image plane through relative object-environment motion. We show that under these very practical conditions the observed specular flow can be related to surface shape through a pair of coupled nonlinear partial differential equations. Importantly, this relationship depends only on the environment's relative motion and not its content. We examine the qualitative properties of these equations, present analytic methods for recovery of the shape in several special cases, and empirically validate our results using captured data. We also discuss the relevance to both computer vision and human perception.
Case 52-1982 (1982)

Case Records of the Massachusetts General Hospital from The New England Journal of Medicine — Case 52-1982 — A 50-Year-Old Man with Hairy-Cell Leukemia, Recurrent Fever, and Variable Pulmonary Infiltrates
Internet Resources for Gene Expression Analysis in Arabidopsis thaliana (2008)

The number of online databases and web-tools for gene expression analysis in Arabidopsis thaliana has increased tremendously during the last years. These resources permit the database-assisted identification of putative cis-regulatory DNA sequences, their binding proteins, and the determination of common cis-regulatory motifs in coregulated genes. DNA binding proteins may be predicted by the type of cis-regulatory motif. Further questions of combinatorial control based on the interaction of DNA binding proteins and the colocalization of cis-regulatory motifs can be addressed. The database-assisted spatial and temporal expression analysis of DNA binding proteins and their target genes may help to further refine experimental approaches. Signal transduction pathways upstream of regulated genes are not yet fully accessible in databases mainly because they need to be manually annotated. This review focuses on the use of the AthaMap and PathoPlant((R)) databases for gene expression regulation analysis and discusses similar and complementary online databases and web-tools. Online databases are helpful for the development of working hypothesis and for designing subsequent experiments.
Electrochemical Removal of Tannins from Aqueous Solutions (2000)

The applicability of electrochemical methods to remove tannins from wastewater was investigated. Gallotannic acid was used as the reference substance. Electrochemical experiments were performed using platinum electrodes. Macroscale potentiostatic or galvanostatic electrolyses were carried out with sodium sulfate or sodium chloride as supporting electrolytes, to analyze direct and indirect oxidation processes. Operating variables such as pH and chloride concentration were considered to determine their influence on the efficiency and energy consumption of the process. The simulation of a pilot plant was carried out with a mathematical model, the parameters of which were determined by fitting of experimental profiles. The results of a preliminary investigation on the oxidation−coagulation process using sacrificial electrodes are also reported.
Compact and rugged all-fibre coupler for wavelength division multiplexing (1982)

A very compact and rugged all-fibre coupler for wavelength division multiplexing has been realised. The advantages of this type of coupler are low insertion loss (1 dB–1.5 dB), high crosstalk attenuation (> 35 dB for duplexing), simple and cheap fabrication and excellent stability against environmental factors.
Left Atrial Size and the Risk of Stroke and Death (1995)

After multivariable adjustment, LA enlargement remained a significant predictor of stroke in men and death in both sexes. The relation of LA enlargement to stroke and death appears to be partially mediated by LV mass.
Internet radio and excellent audio quality: dreamboat or reality? (1997)

Audio via the Internet gets more and more attention for program production as a contribution medium, for business to business distribution as a useful alternative to courier services, as well as a direct to home multi-media broadcasting service. Unfortunately the Web is still very narrow which means that in the case of a 28.8 kbps modem, the bit rate of the audio program is by a factor of 50 reduced compared with the bit rate used for CD. This means that high sophisticated compression techniques have to be applied to the audio signal before transmitting via the Internet. Subjective listening tests are presently the only tool to evaluate the audio quality of the compression schemes. Such tests with different type of typical broadcast material were performed at bit rates which are suitable for a 14.4 and 28.8 kbps modem, as well as for 1 B-channel ISDN with five different Internet radio audio coding systems. The background and the results of these tests, which have been conducted within the EBU B/IR (Broadcast Management: Internet Radio Project Group) according to ITU-T Recommendation P.80, are presented and discussed.
Distributed CBR using XML (1998)

. CBR (case-based reasoning) has considerable potential for developing intelligent assistants for the World Wide Web. Several case-based intelligent applications already exist on the web but these applications follow a thin client model with the intelligence located at the server side. In this paper we explore the advantages of making these applications more distributed. We illustrate the kinds of application where the dialogue with the case-base is long-lived and network latency or server load would suggest that some of the processing should be distributed to the client side. We present an architecture for such a distributed CBR system and describe how a case-representation language based on XML can facilitate this distribution. The advantages of adopting an XML case-representation language are interoperability and flexibility of reuse and these are discussed in the second half of the paper. 1. Introduction Several web based intelligent assistants that use CBR (case-based reasoning) ...
Promoting Avionic Tests System as Productivity Enablers: The EASI Case Study (2010)

The present paper discusses the strategic evolution of avionics tests systems at Eurocopter requested by virtualization turn. Until now considered as a necessary evil in the global avionics product lifecycle, tests systems are taking the path to be promoted as key productivity enablers. Industry competitiveness pushes avionics actors to revisit and strengthen their Verification & Validation capabilities. To satisfy more and more demanding Time to Market constraints while being strongly innovative, product lifecycle can no longer be apprehended as a series of light inheritance knowledge operations in a delivery perspective. Therefore next Eurocopter's tests systems shall be both designed as an I/O manager and as a model integrator supporting: system concepts validation, knowledge capitalization, models reusing and inheritance between lifecycle steps. This massive turn impacts test system department which role will move to more component integration oriented expertise covering the whole product lifecycle. Only critical parts will remain Eurocopter internal, the other parts shall be open source ones or delegated to third parties. This major change is the baseline of the EASI (EADS Avionic System Ide) Project. EASI is introduced in the present paper to illustrate the near virtualization impact at Eurocopter.
CD38 Antibodies in Multiple Myeloma: Mechanisms of Action and Modes of Resistance (2018)

MM cells express high levels of CD38, while CD38 is expressed at relatively low levels on normal lymphoid and myeloid cells, and in some non-hematopoietic tissues. This expression profile, together with the role of CD38 in adhesion and as ectoenzyme, resulted in the development of CD38 antibodies for the treatment of multiple myeloma (MM). At this moment several CD38 antibodies are at different phases of clinical testing, with daratumumab already approved for various indications both as monotherapy and in combination with standards of care in MM. CD38 antibodies have Fc-dependent immune effector mechanisms, such as complement-dependent cytotoxicity (CDC), antibody-dependent cellular cytotoxicity (ADCC), and antibody-dependent cellular phagocytosis (ADCP). Inhibition of ectoenzymatic function and direct apoptosis induction may also contribute to the efficacy of the antibodies to kill MM cells. The CD38 antibodies also improve host-anti-tumor immunity by the elimination of regulatory T cells, regulatory B cells, and myeloid-derived suppressor cells. Mechanisms of primary and/or acquired resistance include tumor-related factors, such as reduced cell surface expression levels of the target antigen and high levels of complement inhibitors (CD55 and CD59). Differences in frequency or activity of effector cells may also contribute to differences in outcome. Furthermore, the microenvironment protects MM cells to CD38 antibody-induced ADCC by upregulation of anti-apoptotic molecules, such as survivin. Improved understanding of modes of action and mechanisms of resistance has resulted in rationally designed CD38-based combination therapies, which will contribute to further improvement in outcome of MM patients.
Noise generation by the interaction between ingested turbulence and a rotating fan (1998)

An important criterion in the development of modern aeroengines is the identification of the dominant noise sources under typical aircraft take-off and approach conditions, and also in ground-based tests in which the engine is stationary. In this paper, we develop a theoretical model for unsteady distortion noise , which results from the interaction of ingested atmospheric turbulence with the rotating fan, with a view to providing a better understanding of the important physical mechanisms in this particular aspect of sound generation. The theory, developed in the frequency domain, is applicable for any arbitrary spectral form of atmospheric turbulence upstream of the fan, and as a simple model we take the von Kármán spectra for isotropic turbulence. The key fluid dynamical process in unsteady distortion is the deformation of turbulent eddies into long, narrow filaments as they enter the engine, due to the strong streamtube contraction experienced by the steady, non-uniform mean flow generated by the fan. Simple models of the steady flow fields are provided for both open and ducted rotor geometries. The distorted turbulent field at the fan face can be obtained using rapid distortion theory, and considerable simplification is made here by noting that the number of blades in typical aeroengine fans is large, allowing the application of asymptotic analysis and the derivation of closed-form expressions for those parts of the turbulence spectrum at the fan face which dominate the radiation. The unsteady forces exerted on the rotating fan blades are then calculated via a strip-theory approach. The resulting sound scattered to the far field is then evaluated using asymptotic theory for open and ducted rotors. Results are presented in the form of frequency spectra for the turbulent field at the fan face, the blade forces and the radiated sound for typical testing and aircraft operating conditions. High tonal noise levels are obtained under static conditions, whereas the sound is generally broadband in flight. The dependence on turbulence parameters such as the integral lengthscale is highlighted.
Information encoding with two-dimensional bar codes (1992)

Various schemes proposed for storing more information in the bar code label are reviewed. The concept of information density is introduced. The constraints imposed by the reading technology are addressed, and various recently proposed stacked bar codes are surveyed. Certain non-bar-code solutions are discussed.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Determinations of total carotenoids and chlorophylls <i>a</i> and <i>b</i> of leaf extracts in different solvents (1983)

Conference Article| October 01 1983 Determinations of total carotenoids and chlorophylls a and b of leaf extracts in different solvents HARTMUT K. LICHTENTHALER; HARTMUT K. LICHTENTHALER *Botanisches Institut der Universitat, Kaiserstraße 12, Postfach 6380. Karlsruhe, Federal Republic of Germany Search for other works by this author on: This Site PubMed Google Scholar ALAN R. WELLBURN ALAN R. WELLBURN †Department of Biological Sciences, University of Lancaster, Bailrigg, Lancaster LA1 4YQ, U.K. Search for other works by this author on: This Site PubMed Google Scholar Biochem Soc Trans (1983) 11 (5): 591–592. https://doi.org/10.1042/bst0110591 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Facebook Twitter LinkedIn MailTo Cite Icon Cite Get Permissions Citation HARTMUT K. LICHTENTHALER, ALAN R. WELLBURN; Determinations of total carotenoids and chlorophylls a and b of leaf extracts in different solvents. Biochem Soc Trans 1 October 1983; 11 (5): 591–592. doi: https://doi.org/10.1042/bst0110591 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsBiochemical Society Transactions Search Advanced Search This content is only available as a PDF. © 1983 Biochemical Society1983 Article PDF first page preview Close Modal You do not currently have access to this content.
Optimizing optical systems with active components (2012)

The increasing requirement on the performance of optical instruments leads to more complex optical systems including active optical components. The role of these components is to correct for environmental influences on the instrument and reduce manufacturing and alignment residuals. We describe a method that can be used to design and operate instruments with active components that are not necessarily located in the pupil. After the optical system is designed, the next step is to analyse the available degrees of freedom (DOF), select the best set and include them in the active component. By performing singular value decomposition (SVD) and regularization of the sensitivity matrix, the most efficient DOF for the active component can be calculated. In operation of the instrument, the wavefront at the pupil plane is reconstructed from phase diversity (PD); a metrology having minimal impact on instrument design. Information from SVD, forward and reverse optimization are used to model the process, explore the parameter space and acquire knowledge on convergence. The results are presented for a specific problem.
Digital Time-Base Error Compensator for Wideband Telemetry Recorder/Reproducers (1969)

International Telemetering Conference Proceedings / September 15-17, 1969 / Sheraton Park Hotel, Washington, D.C.