gebhart/patrepeval huggingface dataset:
MMSE-based linear parallel interference cancellation in CDMA (2002)

We mathematically describe the linear parallel interference canceller (PIC) using matrix algebra. It is shown that the linear PIC, whether conventional or weighted, can be seen as a linear matrix filter applied directly to the received chip-matched filtered signal vector. It is then possible to get an analytical expression for the exact bit error rate and to derive necessary conditions on the eigenvalues of the code correlation matrix and the weighting factors to ensure convergence. The close relationship between the steepest descent method for minimising the mean squared error (MSE) and linear PIC is demonstrated and a modified PIC structure is suggested which converges to the PMMSE detector rather than the decorrelator. Following the principles of the steepest descent method techniques are devised for optimising the choice of weighting factors with respect to the mean squared error. It is shown that only K (the number of users) PIC stages are required for the equivalent matrix filter to be identical to the MMSE filter. For fewer stages, m<K, one unique optimal choice of weighting factors exists which will lead to the minimum achievable MSE at the last stage.
Residual‐based turbulence models for moving boundary flows: hierarchical application of variational multiscale method and three‐level scale separation (2013)

SUMMARY This paper presents residual‐based turbulence models for problems with moving boundaries and interfaces. The method is developed via a hierarchical application of variational multiscale ideas and the models are cast in an arbitrary Lagrangian–Eulerian (ALE) frame to accommodate the deformation of domain boundaries. An overlapping additive decomposition of velocity and pressure fields into coarse and fine scale components leads to coarse and fine scale mixed‐field problems. The problem governing fine scales is subjected to a further decomposition of the fine scale velocity into overlapping components termed as fine scales level I and level II. In turn, in the bottom‐up integration of scales, the model for level II fine scales serves to stabilize the problem governing level I fine scales, and model for level I fields yields the turbulence models. From the computational perspective, the coarse scales are represented in terms of the standard Lagrange shape functions, whereas level I and level II scales are represented via quadratic and fourth order polynomial bubbles, respectively. Because of the bubble functions approach employed in the consistently derived fine scale models, the resulting method is free of any embedded or tunable parameters. The proposed turbulence models share a common feature with the LES models in that the largest scales in the flow are numerically resolved, whereas the subgrid scales are modeled. The method is applied to flow around a plunging airfoil at Re = 40,000, and results are compared with experimental and numerical data published in the literature. Also presented are the results for the plunging airfoil at Re = 60,000 to show the robustness and range of applicability of the method. Copyright © 2013 John Wiley &amp; Sons, Ltd.
Combining System Properties: A Cautionary Example and Formal Examination (2005)

This report presents a simple example to demonstrate that the composition of a &amp;quot;fault-tolerant&amp;quot; service and a &amp;quot;secure&amp;quot; service does not necessarily provide a secure and fault-tolerant service. The example is originally due to Peleska, who argues that to achieve the combined service, it is necessary to strengthen one of the individual services to address both concerns. In contrast, I argue that the individual services should be &amp;quot;deconstructed &amp;quot; into smaller and weaker components that can be reassembled in different ways, and I show that the combined service can be achieved by composing the fault-tolerant service with a weaker version of the secure service. The report also provides an introduction to the use of mechanized formal state exploration methods (specifically, the MurOE system from Stanford) for the purpose of examining and debugging protocols. Contents 1 Introduction 1 2 Informal Description and Analysis 3 2.1 Fault Tolerance: The Alternating Bit Protocol : : : : : : : : : ...
Comparison of media used to evaluateRhizobium leguminosarumbivarviciaefor phosphate-solubilizing ability (2009)

Rhizobium leguminosarum is well known for its ability to fix nitrogen (N). In addition, its capacity to solubilize phosphate (Ph) has been receiving attention in recent years. Our ultimate objective was to select a R. leguminosarum bv. viciae isolate with superior Ph-solubilizing ability. The first step was to identify a culture medium that is sensitive and effective in identifying the ability of R. leguminosarum bv. viciae isolates to solubilize Ph. Thirty isolates were evaluated for Ph solubilization in broth and on solid formulations of three media: yeast mannitol extract (YEM), National Botanical Research Institute phosphate nutrient medium (MNBRI), and Pikovskaya phosphate medium (PVK). All media contained 5 g/L CaHPO4 as the only phosphorus (P) source. All 30 isolates increased the Ph concentration in liquid cultures, but the amount of Ph released into solution by individual isolates varied from one medium to another. In contrast, only a subset of the 30 isolates solubilized Ph on the solid cultures. Furthermore, some of the isolates that were able to solubilize Ph were only able to do so on a single medium. Regression analysis revealed no relationship between the Ph concentration in the liquid media and the zones of clearing on the solid media (p > 0.05). Although the pH of all of the liquid media dropped after 12 days of growth of the isolates, a relationship between Ph concentration and pH existed only for the MNBRI medium (r2 = 0.485, p < 0.001). Increasing the amount of N in the MNBRI medium from 0.1 g/L of (NH4)2SO4 to 0.5 g/L of (NH4)2SO4 did not affect the amount of Ph in solution, but it profoundly reduced the survival of the R. leguminosarum by approximately 50-fold. Consequently, the surviving bacteria were either more efficient at solubilizing Ph in the high N media or organic acids released from the lysis of the dead cells solubilized the CaHPO4 source.
Information-packaging constructions (2009)

The study whose findings are reported in this chapter compares the frequencies and uses of five “information-packaging” constructions across four Englishes (Australian, New Zealand, British and American) and a range of registers (informal dialogue, learned writing, news reportage, editorials and fiction). antipodean practices are found to pattern more closely with British English (with New Zealanders even more conservative than the British in various respects) than with American English, which displayed resistance to the constructions in the written language but acceptance of them in spoken language. The findings are discussed in the light of recent diachronic trends in British English.
A utility and accurate electrical loss model and application for induction motors utilizing 2-D finite element analysis (2015)

The estimation of electrical losses is a basic requirement for motor design based on efficiency optimization. A utility and accurate electrical loss calculation method for induction motors utilizing 2-D finite element analysis is proposed in this paper. The stator copper losses are directly calculated on the basis of Joule's Law; the rotor copper losses are expressed as the integration of current density; the Bertotti loss separation model is used to predict the fundamental core loss; the surface core losses and pulsating core losses are calculated according to the FFT of air-gap flux density, while the high-frequency stray copper losses are classified into the rotor copper losses. The influence of magnetic wedge on the motor performance is presented during the method. Three experiments are implemented on 450kW, 710kW and 1250kW motors and the validity of the calculation method is proved. An application of the proposed method is carried out on the machine with sinusoidal windings.
Dual actions of A2A adenosine receptor antagonists on motor dysfunction and neurodegenerative processes (2001)

Abstract Of the four known adenosine receptors, the A 2A receptor has received much attention over the last few years. The discovery of high‐affinity and selective A 2A adenosine receptor antagonists, together with the development of different genetic lines of mice lacking A 2A receptors, have greatly contributed to the new insights into the mechanisms whereby A 2A receptors modulate central nervous system functions. Efforts made using the prototypic A 2A receptor antagonists, e.g., the 8‐styrylxanthine KW 6002 and the pyrazolotriazolopyrimidine SCH 58261, have shown that these drugs are effective in different models of motor impairment mimicking the main features of Parkinson’s disease. Moreover, these drugs show neuroprotective properties in models of brain injury. Consistent with pharmacology, A 2A receptor knockout mice have been found to be less sensitive to both motor impairment and neurochemical changes relevant to neurodegenerative disorders. The main effect of A 2A receptor blockade or inactivation is related to selective interaction with dopamine‐mediated function in the striatum. However, there are responses which appear to be independent of dopamine receptors while the mechanisms underlying neuroprotection remain to be elucidated. Overall, there are now compounds that appear to be promising for treatment of Parkinson’s disease and related neurodegenerative disorders. The efforts currently ongoing to understand their efficacy in patients will make it possible to assess whether A 2A receptor blockers are a new interesting class of antiparkinsonian agents. Drug Dev. Res. 52:379–386, 2001. © 2001 Wiley‐Liss, Inc.
Evaluation of Stem Cell Concentrate Prepared From Bone Marrow Aspirate Using the Res-QTM system. (2009)

Abstract Abstract 4232 BACKGROUND The Res-Q System is a point of care device intended for the preparation of cell concentrates from bone marrow by centrifugation. Stem cell concentrates from bone marrow aspirate (BMA) were prepared in less than 15 minutes. The bone marrow concentrate was collected in the device funnel and extracted in a harvesting syringe. The cellular components of samples were analyzed pre- and post processing. STUDY DESIGN For this study 4 anticoagulated bone marrows were processed. All samples were evaluated for cell recovery, hematocrit, total nucleated cells (TNC), mononuclear cells (MNC), CD34+ cells, cell viability and colony forming units before and after Res-Q60 processing. The Res Q processed post samples were cultured and cells characterized by flow cytometry using cell surface markers. RESULTS The Res-Q60 process achieved MNC fraction volumes of 6.7 ± 0.1 ml with a final average hematocrit of 17± 0.6%. The post-processing recovery of CD34+ cells was 90 ±12.7%, of MNC was 85 ± 4% and of TNC was 64 ± 13%. No change in cell viability was observed using the Res-Q60 device. Res-Q derived cell concentrate cultured in mesenchymal stem cells basal media followed by immunophenotyping measured by flow cytometry were ≥ 95% positive for CD73, CD90 and CD105. The same cells lack (≤ 5%) expression of CD31 and CD34. CONCLUSIONS In conclusion, Res-Q60 system provides a new simple method for preparation of cell concentrates from bone marrow at the point of care. Disclosures: Kumar: Thermogenesis Corp.: Employment. Chapman:Thermogenesis Corp.: Employment.
Direct measurement of spatial electron density oscillations in a dual frequency capacitive plasma (2008)

The spatio-temporal electron density oscillation in a narrow gap dual frequency (27.12 and 1.937 MHz) capacitive discharge has been measured for the first time by using a floating microwave hairpin resonance probe. By measuring the probe’s resonance frequency in a space and phase-resolved manner, we observe significant oscillation in electron density at both drive frequencies throughout the region between the parallel plate electrodes. The observed phenomenon is attributed to the influence of presheath electric fields of the opposing electrodes in alternate fashion.
Update on the NASA Glenn PSL Ice Crystal Cloud Characterization (2016) (2016)

NASA Glenn's Propulsion Systems Laboratory (PSL) is an altitude engine research test facility capable of producing ice-crystal and supercooled liquid clouds. The cloud characterization parameter space is fairly large and complex, but the phase of the cloud seems primarily governed by wet bulb temperature. The presentation will discuss some of the issues uncovered through four cloud characterization efforts to date, as well as some of instrumentation that has been used to characterize cloud parameters including cloud uniformity, bulk total water content, median volumetric diameter and max-diameter, percent freeze-out, relative humidity, and an update on the NASA Glenn PSL Ice Crystal Cloud Characterization (2016).
Student Self-Motivation: Lessons Learned from Teaching First Year Computing (2006)

This paper describes a study that profiled student participation in a CS1 course to identify key performance indicators and improve student learning experiences. Existing research has provided many novel teaching strategies while other research has produced findings that argue for stronger links between learning outcomes and teaching and assessment. Prior research generally used surveys as the principal mechanism for metric gathering. The study reported here used a survey instrument but additionally monitored lecture and tutorial attendance, web site access and email traffic as well as employing demographic data to examine students' learning experiences. The learning experience was improved by enhancing the student/teacher interaction in both the lectures and tutorials, mapping learning outcomes to both assessment and teaching and decoupling assessment from feedback. The results suggest that the major factor in determining whether a student passed or failed was self-motivation and willingness to engage in the range of learning activities provided for them
CLOE: Cross-Layer Design for Wireless Networks (2007)

Cross-layer optimization is an effective mechanism to improve wireless system and network performance and efficiency. Cross-layer optimization is not a new technique, but it can be applied effectively to different wireless technologies to handle different problems without violating the wireless standards. Utility functions are constructed from measurements of the different OSI layers to provide input into our cross-layer optimization engine. ZigBee technology was chosen as the test platform to demonstrate our proposed mechanism.
Elektrolumineszierende Textilien für die Heimdekoration (2021)

C2 ist die einzige weltweit verbreitete Fachzeitschrift für die Coating- und Converting-Branche mit unterschiedlichen Landesausgaben.
Plant photoreceptors and their signaling components compete for binding to the ubiquitin ligase COP1 using their VP-peptide motifs (2019)

SUMMARY Plants sense different parts of the sun’s light spectrum using specialized photoreceptors, many of which signal through the E3 ubiquitin ligase COP1. Photoreceptor binding modulates COP1’s ubiquitin ligase activity towards transcription factors. Here we analyze why many COP1-interacting transcription factors and photoreceptors harbor sequence-divergent Val-Pro (VP) peptide motifs. We demonstrate that VP motifs enable different light signaling components to bind to the WD40 domain of COP1 with various binding affinities. Crystal structures of the VP motifs of the UV-B photoreceptor UVR8 and the transcription factor HY5 in complex with COP1, quantitative binding assays and reverse genetic experiments together suggest that UVR8 and HY5 compete for the COP1 WD40 domain. Photoactivation of UVR8 leads to high-affinity cooperative binding of its VP domain and its photosensing core to COP1, interfering with the binding of COP1 to its substrate HY5. Functional UVR8 – VP motif chimeras suggest that UV-B signaling specificity resides in the UVR8 photoreceptor core, not its VP motif. Crystal structures of different COP1 – VP peptide complexes highlight sequence fingerprints required for COP1 targeting. The functionally distinct blue light receptors CRY1 and CRY2 also compete with downstream transcription factors for COP1 binding using similar VP-peptide motifs. Together, our work reveals that photoreceptors and their components compete for COP1 using a conserved displacement mechanism to control different light signaling cascades in plants.
Beat wave launch of lower-hybrid wave for alpha particle diagnostic (1996)

By use of nonlinear mixing of oppositely‐directed pump waves of frequency f0±δf≫fpe,fce, a beat wave of frequency f12=2δf and velocity v12=cδf/f0 may be launched deeply into the interior of a confined plasma. For launch perpendicular to magnetic field at a beat frequency in the lower‐hybrid range, fci≪f12≪fce, wave damping is proportional to the local derivative of the fast ion distribution function, ∂fα/dv‖v12, thus providing (in combination with a wave‐scattering diagnostic) a potential means for direct, noninvasive measurement of the local alpha‐particle distribution. Present experiments on the Davis Divertor Torus (DDT) are aimed at developing quantitative agreement between computed and actual Langmuir probe measurements of spatial and temporal beat‐wave distributions in a three‐dimensional plasma volume.
Purification and properties of extracellularβ-fructofuranosidases fromAureobasidium sp. ATCC 20524 (1992)

Two extracellular/Lfructofuranosidases (E-1 and E-2) from Aureobasidium sp. ATCC 20524, producing 1-kestose (1F-~-fructofuranosyl-sucrose) from sucrose, were purified to homogeneity. Molecular weights of the enzymes were estimated to be about 304 000 (E-1) and 315 000 (E-2) Da by gel filtration. The enzymes contained 33 % (w/w) (E-1) and 27 % (w/w) (E-2) carbohydrate, The K m values for sucrose of E-1 and E-2 were 0.34 and 0.28 M, respectively. The enzymatic profiles of these enzymes were almost identical to intracellular enzymes P-1 and P-2 except for the differences in carbohydrate content and K m values of E-2 and P-2.
Stamp and logo detection from document images by finding outliers (2015)

Stamps and logos are generally used for authenticating the source of a document. For automatic document processing, identification and segmentation of stamps and logos are essential. In the past, methods to detect stamps and logos were limited to specific shapes, colors, or training data. However, stamps and logos can be of any shape or color. In this paper, we have proposed a novel stamp and logo detection technique. Our approach is based on the fact that stamps and logos, in general, are not the primary contents of a document. This fact motivates us to propose an outlier detection technique for the same purpose in a feature space. Based on some geometric features, the detected outliers are classified as stamps and logos. Our method shows good performance in case of separating them from text. Moreover, this technique is capable of detecting logos as well as chromatic and achromatic stamps.
Clinical response of dermatitis herpetiformis skin lesions to a gluten-free diet (1976)

Patients with dermatitis herpetiformis have been studied prospectively for 2 years to assess the effect of a gluten-free diet (GFD) on control of the skin lesions. Daily requirements for oral medication with sulphapyridine or dapsone were reduced by GFD treatment and if complete clinical remission of the skin disease occurred, it was maintained while the diet was strictly observed. However, complete remission did not occur significantly more often in GFD-treated patients than in patients taking a normal diet. Many of the latter group exhibited variation in their drug dose requirements during the period of study. GFD treatment seems desirable for the majority of patients with dermatitis herpetiformis, not only to correct the intestinal abnormality but also to minimize the dose of drugs necessary to control the skin lesions.
The platforms enabling wireless sensor networks (2004)

All emphasize low-cost components operating on shoestring power budgets for years at a time in potentially hostile environments without hope of human intervention.
Formation, chemistry, and thermochemistry of primary amide complexes of iron(I) and cobalt(I) in the gas phase (1987)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFormation, chemistry, and thermochemistry of primary amide complexes of iron(I) and cobalt(I) in the gas phaseSteven W. Buckner and Ben S. FreiserCite this: J. Am. Chem. Soc. 1987, 109, 15, 4715–4716Publication Date (Print):July 1, 1987Publication History Published online1 May 2002Published inissue 1 July 1987https://pubs.acs.org/doi/10.1021/ja00249a042https://doi.org/10.1021/ja00249a042research-articleACS PublicationsRequest reuse permissionsArticle Views135Altmetric-Citations31LEARN 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
Effect of Diuretics, Channel Modulators and Signal Interceptors on Contractility of the Trabecular Meshwork (1997)

Measurements of isometric tension were performed on isolated trabecular meshwork (TM) and ciliary muscle (CM) strips of the bovine eye. Anterior segments of bovine eyes with well-preserved TM were perfused to measure outflow rate. (1) Bumetanide (10(-4) mol/l) and hydrochlorothiazide (10(-4) mol/l) did not change the contractility of TM and CM strips in the presence or absence of carbachol. Ethacrynic acid dose-dependently relaxed TM and CM strips precontracted either by carbachol or endothelin. (2) Cytochalasin D totally relaxed TM and CM strips precontracted by carbachol. The outflow rate almost doubled after application of cytochalasin D. (3) The effects of various modulators of K+ and Ca2+ channels are summarized. Carbachol and endothelin are postulated to modify nonselective cation channels. An effective blocker of nonselective cation channels (flufenamic acid) relaxed TM and CM precontracted by carbachol or endothelin. These relaxing effects were independent of the relaxing effects of ethacrynic acid and isosorbide dinitrate. (4) Evidence for the presence of various transporters and receptors in TM cells is summarized. (5) The TM per se is a contractile element which is involved in the regulation of aqueous humor outflow. The contractility of TM and CM cells is differently modulated.