gebhart/patrepeval huggingface dataset:
Stabilization of Model Beverage Cloud Emulsions Using Protein−Polysaccharide Electrostatic Complexes Formed at the Oil−Water Interface (2006)

The potential of utilizing interfacial complexes, formed through the electrostatic interactions of proteins and polysaccharides at oil-water interfaces, to stabilize model beverage cloud emulsions has been examined. These interfacial complexes were formed by mixing charged polysaccharides with oil-in-water emulsions containing oppositely charged protein-coated oil droplets. Model beverage emulsions were prepared that consisted of 0.1 wt % corn oil droplets coated by beta-lactoglobulin (beta-Lg), beta-Lg/alginate, beta-Lg/iota-carrageenan, or beta-Lg/gum arabic interfacial layers (pH 3 or 4). Stable emulsions were formed when the polysaccharide concentration was sufficient to saturate the protein-coated droplets. The emulsions were subjected to variations in pH (from 3 to 7), ionic strength (from 0 to 250 mM NaCl), and thermal processing (from 30 or 90 degrees C), and the influence on their stability was determined. The emulsions containing alginate and carrageenan had the best stability to ionic strength and thermal processing. This study shows that the controlled formation of protein-polysaccharide complexes at droplet surfaces may be used to produce stable beverage emulsions, which may have important implications for industrial applications.
Production of haploid maize plants by anther culture (1981)

Embryos were produced at a low frequency from anthers of Seneca 60 and 2 Chinese genotypes cultured on agar medium. A further 10 genotypes failed to respond. The best results were achieved with anthers cultured at the uninucleate vacuolate stage of pollen development on medium containing activated charcoal. Twenty-two of 21,638 anthers responded, and 53 embryos were obtained of which 14 developed to give plants. Haploid mitotic figures (10 chromosomes) were observed in root-tip squashes of 5 plants. The anther culture technique is compared with other available methods for generating haploid maize plants.
Millimeter-wave radar phenomenology of power lines and a polarimetric detection algorithm (1999)

The radar phenomenology of high-voltage power lines and cables is studied for examining the feasibility of detecting power lines along the path of a low-flying aircraft using a millimeter-wave radar system. For this purpose, polarimetric backscatter measurements of power line samples of different diameters and strand arrangements were performed over a wide range of incidence angles with very fine increments at 94 GHz. Also, similar polarimetric backscatter measurements were conducted for cylinders of the same radii and lengths as the power line samples for identifying the scattering features caused by the braiding structure of the power lines. In addition, the effects of a thin layer of water and a layer of ice over the power line surface on its polarimetric scattering behavior are studied by repeating the polarimetric backscatter measurements. Based on this phenomenological study, a polarimetric detection algorithm that makes use of the scattering features caused by the braided structure of power lines is proposed. It is shown that the proposed algorithm is capable of detecting power lines in a relatively strong clutter background with a poor signal-to-clutter ratio. The performance of the algorithm is demonstrated experimentally using a rough asphalt surface and a vegetation foliage as sample clutter backgrounds.
Pseudo 2D String Matching Technique for High Efficiency Screen Content Coding (2015)

This paper proposes a pseudo 2D string matching (P2SM) technique for high efficiency screen content coding (SCC). The technique uses a primary reference buffer (PRB) and a secondary reference buffer (SRB) for string matching and string copying. In the encoder, optimal reference string searching is performed in both PRB and SRB, and either a PRB or an SRB string is selected as an optimal reference string on a string-by-string basis. If no reference string of at least one pixel is founded for a current pixel, then the current pixel is coded as an unmatched pixel. Compared with HM-16.4${+}$SCM-4.0 reference software, the proposed P2SM technique achieves up to 37.7% Y BD-rate reduction for a screen snapshot of a spreadsheet. On average, using HEVC SCC common test condition and YUV test sequences in text and graphics with motion category, the proposed technique achieves Y BD-rate reduction of 7.7%, 5.0%, 2.6% for all intra (AI), random access (RA) and low-delay B (LB) configurations, respectively in lossy coding with both intra block copy (IBC) and P2SM having the same 4 coding tree units (CTUs) searching range, and bit-rate saving of 6.0%, 3.9%, 3.1% for AI, RA, LB configurations, respectively in lossless coding with IBC having full frame searching range while P2SM having only 2 CTUs searching range, at very low additional encoding and decoding complexity.
Norepinephrine Directly Activates Adult Hippocampal Precursors via β<sub>3</sub>-Adrenergic Receptors (2010)

Adult hippocampal neurogenesis is a critical form of cellular plasticity that is greatly influenced by neural activity. Among the neurotransmitters that are widely implicated in regulating this process are serotonin and norepinephrine, levels of which are modulated by stress, depression and clinical antidepressants. However, studies to date have failed to address a direct role for either neurotransmitter in regulating hippocampal precursor activity. Here we show that norepinephrine but not serotonin directly activates self-renewing and multipotent neural precursors, including stem cells, from the hippocampus of adult mice. Mechanistically, we provide evidence that beta(3)-adrenergic receptors, which are preferentially expressed on a Hes5-expressing precursor population in the subgranular zone (SGZ), mediate this norepinephrine-dependent activation. Moreover, intrahippocampal injection of a selective beta(3)-adrenergic receptor agonist in vivo increases the number of proliferating cells in the SGZ. Similarly, systemic injection of the beta-adrenergic receptor agonist isoproterenol not only results in enhancement of proliferation in the SGZ but also leads to an increase in the percentage of nestin/glial fibrillary acidic protein double-positive neural precursors in vivo. Finally, using a novel ex vivo "slice-sphere" assay that maintains an intact neurogenic niche, we demonstrate that antidepressants that selectively block the reuptake of norepinephrine, but not serotonin, robustly increase hippocampal precursor activity via beta-adrenergic receptors. These findings suggest that the activation of neurogenic precursors and stem cells via beta(3)-adrenergic receptors could be a potent mechanism to increase neuronal production, providing a putative target for the development of novel antidepressants.
A scheme for high performance real-time BER measurement (1992)

A statistically based method of bit error rate (BER) which does not necessitate the transmission of test patterns or the interruption of data for measurement purposes is presented. It is demonstrated that the method allows accurate estimation of BER several orders of magnitude faster than the Monte Carlo method. Design of an optimal BER estimator based on the maximum-likelihood principle is proposed. The performance of the technique is demonstrated by simulations for the case of QPSK modulation in AWGN and for a live Rayleigh-fading HF link. The ability of the method to accurately predict BER using relatively few samples means that it is particularly suitable for high-speed BER estimation.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Energy-Efficient Multiprocessor Systems-on-Chip for Embedded Computing: Exploring Programming Models and Their Architectural Support (2007)

In today's multiprocessor SoCs (MPSoCs), parallel programming models are needed to fully exploit hardware capabilities and to achieve the 100 Gops/W energy efficiency target required for ambient intelligence applications. However, mapping abstract programming models onto tightly power-constrained hardware architectures imposes overheads which might seriously compromise performance and energy efficiency. The objective of this work is to perform a comparative analysis of message passing versus shared memory as programming models for single-chip multiprocessor platforms. Our analysis is carried out from a hardware-software viewpoint: we carefully tune hardware architectures and software libraries for each programming model. We analyze representative application kernels from the multimedia domain, and identify application-level parameters that heavily influence performance and energy efficiency. Then, we formulate guidelines for the selection of the most appropriate programming model and its architectural support
Pan-European optical networking using wavelength division multiplexing (1997)

The development of the information society will require the introduction of high-capacity transport networks with high performance and low cost. There are currently two ACTS (Advanced Communications Technologies and Services program launched by the European Commission) projects addressing specifically the problem of trans-European optical transport networks using WDM (wavelength division multiplexing). Important issues addressed are the high capacity transmission on existing fiber infrastructure and the introduction of flexibility in the network through the use of optical cross-connects. If these networks become a reality, they could drastically change the evolution of both telecommunication and computer networking because of their transparency and the abundance of inexpensive bandwidth.
Chronic beta-adrenergic antagonist treatment affects human T lymphocyte responsiveness "in vitro". (1990)

The aim of the present study was the evaluation of the effect of long-term propranolol treatment on some immune parameters in humans. The subjects were 12 duodenal ulcer patients, aged 19-23 years. They were given propranolol in a dose of 40 mg three times a day orally. Blood samples were drawn before and after one-month propranolol treatment. The drug did not significantly affect mitogen (PHA, Con A, PWM)- induced lymphoproliferative response, although a tendency of a slight inhibition of proliferation was observed. In all patients treated with propranolol absolute peripheral blood lymphocyte counts increased. Propranolol did not significantly influence one-way MLR, while it enhanced proliferation in the AMLR test in all patients. The drug increased spontaneous and PHA-induced IL-2R expression as well as IL-2 generation. The study showed that chronic beta-adrenoceptor blockade with propranolol may modify some immune functions in humans.
A survey of media processing approaches (2002)

Multimedia processing is becoming increasingly important with a wide variety of applications ranging from multimedia cellphones to high-definition interactive television. Media processing involves the capture, storage, manipulation and transmission of multimedia objects such as text, handwritten data, audio objects, still images, 2D/3D graphics, animation, and full-motion video. A number of implementation strategies have been proposed for processing multimedia data. These approaches can be broadly classified based on the evolution of processing architectures and the functionality of the processors. In order to provide media processing solutions to different consumer markets, designers have combined some of the classical features from both the functional and evolution-based classifications resulting in many hybrid solutions. We propose a categorization of existing microprocessors based on a combination of both architectural and functional flavors with examples of each approach from the latest multimedia processing families. The varying processing requirements in multimedia computing for reconfigurable multimedia processing are presented.
Interactive analysis and display of tabular data (1977)

A program for simple data analysis and report design is described. The design emphasizes flexibility, ease of use, and rapid interactive response. These considerations are discussed in relation to the choices that may be made in the analysis and display design process. The analysis may be directed and monitored at several points - data selection and calibration, binning, choice of data scaling, choice of graphic variable, and scaling of the graphic variable. Table rows and columns can be re-organized by operators such as ranking, sequencing and grouping, and re-computed from arithmetic combinations of existing rows and columns. Where the raw data represents different cases scored over the same attributes, profile tables can be computed in a systematic fashion. Interactive report design is supported by a variety of page layout and chart annotation directives, which can be used to embellish and adjust the default line, bar and pie charts. The program can be used interactively as well as driven from a prepared script, and uses a device independent graphic system. Although intended to be used primarily with a graphics terminal, at least half the actual use has been conventional report generation on both alphanumeric and graphic terminals.
Methylation-capture and Next-Generation Sequencing of free circulating DNA from human plasma (2014)

Our optimized methods provide high-quality methylated fcDNA suitable for whole-genome sequencing, and allow good library complexity and accurate sequencing, despite using less than half of the recommended minimum input DNA.
Industrial New Product Launch Strategies and Product Development Performance (1997)

Just as reporters must answer a few fundamental questions in every story they write, decision‐makers in the new product development (NPD) process must address five key issues: what to launch, where to launch, when to launch, why to launch, and how to launch. These decisions involve significant commitments of time, money, and resources. They also go a long way toward determining the success or failure of any new product. Deeper insight into the tradeoffs these decisions involve may help to increase the likelihood of success for product launch efforts. Erik Jan Hultink, Abbie Griffin, Susan Hart, and Henry Robben present the results of a study that examines the interplay between these product launch decisions and NPD performance. Noting that previous launch studies focus primarily on the tactical decisions (that is, how to launch) rather than on the strategic decisions (what, where, when, and why to launch), they explore not only which decisions are important to success, but also the associations between the two sets of decisions. Because the strategic launch decisions made early in the NPD process affect the tactical decisions made later in the process, their study emphasizes the importance of launch consistency—that is, the alignment of the strategic and tactical decisions made throughout the process. The survey respondents—managers from marketing, product development, or general management in U.K. firms—provided information about 221 industrial new products launched during the previous five years. The responses identify associations between various sets of strategic and tactical decisions. That is, the responses suggest that the strategic decisions managers make regarding product innovativeness, market targeting, the number of competitors, and whether the product is marketing‐ or technology‐driven are associated with subsequent tactical decisions regarding branding, distribution expenditure and intensity, and pricing. The study also suggests that different sets of launch decisions have differing effects on performance of industrial new products. In this study, the greatest success was enjoyed by a small group of respondents categorized as Niche Innovators. Their launch strategy involves a niche focus, targeting innovative products into markets with few competitors. Tactical decisions made by this group include exclusive distribution, a skimming pricing strategy, and a broad product assortment.
MicroRNA and Mechanisms of Impaired Angiogenesis in Diabetes Mellitus (2011)

D iabetes mellitus impairs physiological angiogenesis, which may be manifested as nonhealing foot ulcers or refractory angina. Multiple molecular mechanisms have been proposed. Hyperglycemia induces the generation of reactive oxygen species that cause endothelial derangements, 1 including the reduced synthesis 2 and accelerated degradation 3 of endothelium-derived nitric oxide (NO). The bioactivity of NO is critical for angiogenic processes such as the survival, proliferation, and migration of endothelial cells. The impairment in NO bioactivity may also explain in part the reduced expression of a major angiogenic cytokine, vascular endothelial growth factor (VEGF), in hyperglycemic states, because NO and VEGF have a reinforcing and reciprocal relationship. Glucose intolerance also reduces the number and function of bone marrow-derived endothelial progenitor cells, 6 circulating cells that participate in the angiogenic response. In addition to generating reactive oxygen species, hyperglycemia may impair cytoprotective mechanisms against oxidative stress. In particular, the thioredoxins play a key role in angiogenic processes by maintaining endothelial redox homeostasis, with favorable effects on protein folding, activity of reductive and metabolic enzymes, energy utilization, and transcription factor activity. Emerging evidence indicates that hyperglycemia upsets this cytoprotective mechanism by increasing the expression of the endogenous inhibitor thioredoxin-interacting protein (TXNIP).
Integrate Liveness Detection with Iris Verification to Construct Support Biometric System (2016)

The probabilities for the technology to be spoofed are widely acknowledged in biometric verification system. Important efforts have been conducted to study such threats and to develop countermeasures to direct attacks to the biometric verification system to ensure the security of these systems against spoof attacks and reduce this risk, by using another module that is added to the biometric verification system called the “liveness detection” which uses different anatomical properties to distinguish between real and fake traits. Thus, the robustness of the system against direct attacks can be improved through increasing the security level offered to the final user. This paper is an attempt to construct support biometric security system to protect the iris biometric verification system from spoof attacks, through integrating the iris verification system with addition module called liveness detection which composed of two sub-modules (static and dynamic). A test has been performed, for iris verification phase performed on two types of database (MMU DB) for 180 samples and (CASIA DB) for 90 samples, and gave accuracy (99.44%) with FAR of (0.0277) and FRR (0.0055) for MMU DB, and accuracy (97.77%) with FAR of (0.0333) and FRR (0.0222) for CASIA DB.
Map learning and high-speed navigation in RHINO (1998)

This chapter surveys basic methods for learning maps and high speed autonomous navigation for indoor mobile robots. The methods have been developed in our lab over the past few years, and most of them have been tested thoroughlyin various indoor environments. The chapter is targeted towards researchers and engineers who attempt to build reliable mobile robot navigation software. 1
Synthesis and .alpha.2-adrenoceptor effects of substituted catecholimidazoline and catecholimidazole analogs in human platelets (1990)

It is known that the steric requirements for the interactions of catecholamines and catecholimidazolines with alpha 1- and alpha 2-adrenoceptors are different. New analogues of desoxycatecholimidazoline (1), desoxycatecholimidazole (3), benzylic hydroxyl substituted imidazole (4), and the aromatic fluorine substitution analogues of 1 at the 2 (5), 5 (6), and 6 (7) positions, and a set of asymmetric 4-substituted catecholimidazolines, S-8 and R-8, were prepared and tested for interaction with alpha 2-adrenoceptors in human platelets. With the exception of 3, all compounds were selective for alpha-adrenoceptor-mediated responses in human platelets. Introduction of a double bond in imidazoline 1 to give an imidazole 3 or the introduction of a benzylic hydroxyl group to 3, as in 4, reduced the inhibition of platelet aggregation with a rank order potency of 1 greater than 3 greater than 4. Fluorine atom substitution at the 2-, 5-, or 6-positions only slightly modified the inhibitory activity of 1. Each analogue (1, 3-7) produced alpha 2-mediated inhibition of platelet adenylate cyclase and can be classified as a partial agonist. The inhibition potency of S-8 and R-8 against epinephrine-induced aggregatory responses were greatly different, and only R-8 and 4 were alpha 2-agonists on human platelet function. Our studies provide further evidence for the differential interaction of catecholamines and catecholimidazolines in alpha 1- and alpha 2-adrenoceptor systems.
Cleavage of carbon-carbon bonds. Copper(II)-induced oxygenolysis of o-benzoquinones, catechols, and phenols. On the question of nonenzymic oxidation of aromatics and activation of molecular oxygen (1978)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCleavage of carbon-carbon bonds. Copper(II)-induced oxygenolysis of o-benzoquinones, catechols, and phenols. On the question of nonenzymic oxidation of aromatics and activation of molecular oxygenMilorad M. Rogic and Timothy R. DemminCite this: J. Am. Chem. Soc. 1978, 100, 17, 5472–5487Publication Date (Print):August 1, 1978Publication History Published online1 May 2002Published inissue 1 August 1978https://pubs.acs.org/doi/10.1021/ja00485a035https://doi.org/10.1021/ja00485a035research-articleACS PublicationsRequest reuse permissionsArticle Views624Altmetric-Citations103LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts