gebhart/patrepeval huggingface dataset:
Social temporal collaborative ranking for context aware movie recommendation (2013)

Most existing collaborative filtering models only consider the use of user feedback (e.g., ratings) and meta data (e.g., content, demographics). However, in most real world recommender systems, context information, such as time and social networks, are also very important factors that could be considered in order to produce more accurate recommendations. In this work, we address several challenges for the context aware movie recommendation tasks in CAMRa 2010: (1) how to combine multiple heterogeneous forms of user feedback? (2) how to cope with dynamic user and item characteristics? (3) how to capture and utilize social connections among users? For the first challenge, we propose a novel ranking based matrix factorization model to aggregate explicit and implicit user feedback. For the second challenge, we extend this model to a sequential matrix factorization model to enable time-aware parametrization. Finally, we introduce a network regularization function to constrain user parameters based on social connections. To the best of our knowledge, this is the first study that investigates the collective modeling of social and temporal dynamics. Experiments on the CAMRa 2010 dataset demonstrated clear improvements over many baselines.
Derivatives: Markets, Valuation, and Risk Management (2006)

Preface. Acknowledgments. About the Author. PART ONE: Derivative Markets. Chapter 1: Derivative Contracts and Markets. PART TWO: Fundamentals of Valuation. Chapter 2: Assumptions and Interest Rate Mechanics. Chapter 3: Relation between Return and Risk. PART THREE: Forwards/Futures/Swap Valuation. Chapter 4: No-Arbitrage Price Relations: Forwards, Futures, Swaps. Chapter 5: Risk Management Strategies: Futures. PART FOUR: Option Valuation. Chapter 6: No-Arbitrage Price Relations: Options. Chapter 7: Valuing Standard Options Analytically. Chapter 8: Valuing Nonstandard Options Analytically. Chapter 9: Valuing Options Numerically. Chapter 10: Risk Management Strategies: Options. PART FIVE: Stock Derivatives. Chapter 11: Stock Products. Chapter 12: Corporate Securities. Chapter 13: Compensation Agreements. PART SIX: Stock Index Derivatives. Chapter 14: Stock Index Products: Futures and Options. Chapter 15: Stock Index Products: Strategy Based. PART SEVEN: Currency Derivatives. Chapter 16: Currency Products. PART EIGHT: Interest Rate Derivatives. Chapter 17: Interest Rate Products: Futures and Options. Chapter 18: Interest Rate Products: Swaps. Chapter 19: Credit Products. Chapter 20: Valuing Interest Rate Products Numerically. PART NINE: Commodity Derivatives. Chapter 21: Commodity Products. PART TEN: Lessons Learned. Chapter 22: Key Lessons 773 APPENDICES. A. Elementary Statistics. B. Regression Analysis. C. Statistical Tables. D. Glossary. ABOUT THE CD-ROM. INDEX.
Water-soluble products of UV-irradiated, autoxidized linoleic and linolenic acids (1966)

The water-soluble products of the UV-initiated autoxidation of linoleic and linolenic acids emulsified in water were separated into volatile and relatively involatile components, each of which reacted with both thiobarbituric acid (TBA) and peroxidase. The volatile TBA-reactive compound is probably malonaldehyde and the volatile peroxidase-reactive compound is hydrogen peroxide. Additional compounds which absorb UV light were present in the volatile fraction. After thin-layer chromatography of the involatile fraction, reactivity toward TBA and peroxidase was found in the same spot. Approximate molar yields of hydrogen peroxide, malonaldehyde, "hydroperoxides", and other TBA-reactive compounds were estimated. The ratio of "hydroperoxide" to TBA reactivity was lower for linoleic than for linolenic acid. The mass of relatively involatile compounds was about 20 times greater than that predicted from either peroxidase or TBA assays of water extracts of oxidized linolenic acid. The properties of the water extract were similar to those shown by others for the products of prolonged autoxidation (without UV-irradiation) of emulsified methyl linoleate.
Erythrocytes analysis with a digital holographic microscope - art. no. 66310H (2007)

Digital holographic microscopy (DHM) is a technique that allows obtaining, from a single recorded hologram, quantitative phase image of living cell with interferometric accuracy (Marquet et al., 2005). Specifically the optical phase shift induced by the specimen on the transmitted wave front can be regarded as a powerful endogenous contrast agent, depending on both the thickness and the refractive index of the sample. We have recently proposed (Rappaz et al., 2005) a new and efficient decoupling procedure allowing to directly obtain separate measurements of the thickness and the integral refractive index of a given living cell. Consequently, it has been possible, for the first time to our knowledge, to accurately measure (with a precision of 0.0003) the mean refractive index of living erythrocytes.. On the other hand, the cellular thickness measurements allow to calculate the volume and shape of erythrocytes. In addition, DHM, thanks to its subwavelength phase shift measurements, was found to yield an efficient tool to assess erythrocyte cell membrane fluctuations (ECMF). Typically, ECMF characterized by an amplitude within the range of 45 nm were observed.
Acquaintance: Language-Independent Document Categorization by N-Grams (1995)

Acquaintance is the name of a novel vector-space n-gram technique for categorizing documents. The technique is completely language-independent, highly garble-resistant, and computationally simple. An unoptimized version of the algorithm was used to process the TREC database in a very short time. Acquaintance is the name of a technique for information processing that combines the robustness of an n-gram-based algorithm with a novel vector-space model. Acquaintance gauges similarity among documents on the basis of common features, permitting document categorization based on a common language, a common topic, or common subtopics. The algorithm is completely language- and topic- independent, and is resistant to garbling even at the 10% to 15% (character) level. Acquaintance is fully described in Damashek, 1995. The TREC-3 conference provided the first public demonstration and evaluation of this new technique, and TREC-4 provided an opportunity to test its usefulness on several types of text retrieval tasks.
Complete Link Budgets for Backscatter-Radio and RFID Systems (2009)

Backscatter radio - wireless communication by modulating signals scattered from a transponder (RF tag) - is fundamentally different from conventional radio because it involves two distinct links: the power-up link for powering passive RF tags, and the backscatter link for describing backscatter communication. Because of severe power constraints on the RF tag, a thorough knowledge of the backscatter channel is necessary to maximize backscatter-radio and radio-frequency identification (RFID) system performance. This article presents four link budgets that account for the major propagation mechanisms of the backscatter channel, along with a detailed discussion of each. Use of the link budgets is demonstrated by a practical UHF RFID portal example. The benefits of future 5.8 GHz multi-antenna backscatter-radio systems are shown. An intuitive analogy for understanding the antenna polarization of RF tag systems is presented.
Possibilities for Controlling Stored-Grain Insects with RF Energy<sup>*</sup> (1972)

Prior reviews of the literature are cited concerning insect control with radiofrequency (RF) electric fields. Basic principles of dielectric heating are discussed in relation to selective heating of insects in infested grain. The influence of various physical and entomological factors is discussed as supported by experimental evidence. Experimental exposure of insects to 40-MHz and 2,450-MHz fields and measured values of dielectric properties of insects and grain indicate that selective heating advantages may be better in the lower frequency range. Consideration of practical aspects indicates that immediate application of RF methods for insect control is probably not economically feasible, but that RF methods warrant continued evaluation for future possibilities.
Cocondensation products of molybdenum trioxide vapor with methanol, water, and tetrahydrofuran (1985)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCocondensation products of molybdenum trioxide vapor with methanol, water, and tetrahydrofuranC. W. DeKock and Lyle V. McAfeeCite this: Inorg. Chem. 1985, 24, 25, 4293–4298Publication Date (Print):December 1, 1985Publication History Published online1 May 2002Published inissue 1 December 1985https://doi.org/10.1021/ic00219a019RIGHTS & PERMISSIONSArticle Views83Altmetric-Citations12LEARN 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 InReddit PDF (803 KB) Get e-Alerts Get e-Alerts
Amino Acid Homologation by the Blaise Reaction: A New Entry into Nitrogen Heterocycles (2009)

A general strategy for the amino acid homologation via Blaise reaction and subsequent reduction is presented. This strategy involves the preparation of protected alpha-amino nitriles from the corresponding amino acids, followed by the zinc-mediated condensation of tert-butyl bromoacetate, to give the imidazolidones after iminozincate cyclization. Reduction gave the saturated imidazolidinones with cis or trans stereochemistry, depending on the reduction conditions. This strategy was applied to nonfunctionalized amino acids and to functionalized amino acids such as serine and aspartic acid. Additionally, acidic hydrolysis of cis or trans imidazolidinones to the corresponding chiral 4-aminopyrrolidones is described.
A Compact 4GHz Linearizer for Space Use (2005)

A compact and lightweight 4GHz linearizer for satellite TWTA has been developed by using MIC packages with chip devices. It consists of preamplifier, predistortion linearizer and limiting amplifier. It improves the noise power ratio for FM system by 3dB and required C/N for INTELSAT TDMA system by 4.5dB. The space environmental test and aging test are successfully performed.
Measuring Size Distribution of Organic Crystals of Different Shapes Using Different Technologies (2006)

Abstract The ultrasonic attenuation (UA) technique was developed to measure not only particle size distribution (PSD) but also concentration for on‐line and off‐line analysis of high concentration dispersions. Another significant characteristic along with particle size is particle shape. Particle shape influences the apparent particle size as measured by various instruments. Shape factors have been calculated from microscopic images using conventional image analysis (IA) techniques. Particle sizing data measured by UA is more representative than by IA because much larger samples are used for analysis. In this study UA, laser diffraction (LD) and IA size measurements are compared and the influence of particle shape is investigated. Data obtained from UA has been combined with information on shape factor from imaging to obtain equivalent particle size distributions. In a previous study [1], the influence of shape on size measurement has been investigated using different sizing techniques for non‐fragile materials. These particles showed significant variation in measured PSD with their different shapes. In this paper, the same phenomenon was observed with evolving polymorphs of L‐glutamic acid crystals (α and β form), oxalic acid, sucrose and monosodium glutamate.
Use of tree-derived non-edible oils as surface protectants for stored legumes against Callosobruchus maculatus and C. chinensis. (1987)

In CD and UC, selected micronutrient deficits and loss of BCM and muscle strength are frequent in remission and cannot be detected by standard malnutrition screening.
The case for customer satisfaction (1995)

Explains why customer satisfaction has become important in the business world. Examines definitions of quality and then presents four problems which affect customer expectations. Concludes that through reaching customer expectations a company can improve quality internally.
Microstructure of Pressureless Sintered h-BN (1991)

Microstructure of pessureless sintered bodies of h-BN fabricated using an activated powder by mechanochemical treatments has been examined by SEM and TEM observations. The BN compacts obtained by the pressurless sintering showed three dimensionally bonded network structure consisted of platy BN microcrystals. The interconnected regions between two particles are continuous in microstructure without any orientational relationship between them. The interconnected network, which would improve properties of BN bodies, was characterized for the pressureless sintered bodies.
Low-Frequency Atmospheric Acoustic Energy Associated with Vortices Produced by Thunderstorms (2005)

Abstract An infrasonic observatory collocated with the Colorado State University CHILL radar during the summer of 1995 permitted unique comparisons between severe storm kinematics and detected acoustic energy at subaudible frequencies near 1 Hz. Radar observations of a velocity couplet aloft (evolving into a tornado) showed a circulation maximum descending for about 30 min while moving to the east. The detected infrasound followed the trend of these observations. A model of sound radiated from vortex systems predicts frequencies in the range observed. These data are interpreted in the context of past infrasonic observations. An ongoing study comparing regional tornado and funnel sightings with archived infrasonic data has identified over 100 cases to date where the infrasonic signals occurred at the time of, and from the direction of, the vortices. For some of these cases, the distances were greater than 100 km. The author and his associates continue to collect datasets to permit further evaluation of infrasonic detection methods.
The mechanism of the high‐pressure free radical polymerization of ethylene (1981)

Abstract The reaction path of the free radical polymerization of ethylene is usually considered identical to the polymerization mechanism of other vinyl monomers. Available experimental data on the polymerization of ethylene, however, hardly fitted the well‐established path of free radical polymerization. Obviously the mechanism of ethylene polymerization is more complex and not well understood. One reason for this, in our opinion, is insufficient knowledge of the physicochemical state of ethylene under high pressure. A model that described the behavior of ethylene under compression has been proposed. According to the model, and increase in pressure causes the formation of various supermolecular forms of ethylene, each accompanied by transition of the second order. By proposing a stereochemical shape for each supermolecular form calculation of activation volumes for each of these transitions was made. Good agreement was obtained when calculated volumes of activation were compared with corresponding experimental values in the literature.
Opposing regulatory effects of thioredoxin and eosinophil cytotoxicity-enhancing factor on the development of human immunodeficiency virus 1. (1994)

Exogenous recombinant human thioredoxin (rTRX, &gt; or = 500 nM), a dithiol reductase enzyme, inhibited the expression of human immunodeficiency virus (HIV) 1BaL in human macrophages (M phi) by 71% (range, 26-100%), as evaluated by p24 antigen production and the integration of provirus at 14 d after infection. The stoichiometric reducing agent N-acetylcysteine (NAC) also inhibited HIV production, but to a lesser degree, and only at 30,000-fold higher concentrations. Exogenous rTRX is cleaved by M phi to generate the inflammatory cytokine, eosinophil cytotoxicity-enhancing factor (ECEF). In contrast to rTRX, rECEF (concentrations from 50 pM to 2 microM) enhanced the production of HIV by 67% (range, 33-92%). Thus, whereas TRX is a potent inhibitor of the expression of HIV in human M phi, cleavage of TRX to ECEF creates a mediator with the opposite effect. TRX also inhibited the expression of integrated provirus in the chronically infected OM 10.1 cell line, showing that it can act at a step subsequent to viral infection and integration.
Thin-Film Cold Cathode Using ZnS Layer (1991)

A new thin-film cold cathode (TFCC), which is composed of a Sn-doped In 2 O 3 /Ta 2 O 5 /ZnS/Au, has been investigated. The TFCC, which is different from the cold cathodes reported so far, causes electron emissions by electrons flowing across the ZnS layer by a high ac-field. An average emission current of 28 nA/cm 2 has been obtained. To demonstrate the electron emission from the TFCC, cathodeluminescence from phosphor coated on an anode has been observed. The mechanism of the TFCC is also discussed.
Satellites and cables in the future marketplace and the role of MMIC (2003)

After a brief review of the histories of satellites and optical communications systems, the competitive aspects of satellite systems are discussed. Future satellite system architectures are described with highlights on the following technologies: narrow spot beams, fixed and hopping beams, optimized satellite transmissions, demand-assigned transmission, onboard multiplexing/demultiplexing and modulation/demodulation, onboard signal processing, onboard baseband switching, forward error correction, intersatellite links, and mixed services. The role of monolithic microwave integrated circuits (MMICs) as part of these technologies is summarized.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Quantitative assessment of spironolactone treatment in women with diffuse androgen-dependent alopecia (1990)

months with spironolactone (75 or 100 mg per day) and six remained untreated. In the untreated (control) group, mean values for total hair density (P 150 mg per day may be necessary to improve hair quality and increase hair density. However, further long-term studies are required to confirm these findings.
Oral formulation strategies to improve solubility of poorly water-soluble drugs (2011)

Today, the pharmaceutical industry has at its disposal a series of reliable and scalable formulation strategies for poorly soluble drugs. However, due to a lack of understanding of the basic physical chemistry behind these strategies, formulation development is still driven by trial and error.
Amphiphysin I Is Associated with Coated Endocytic Intermediates and Undergoes Stimulation-dependent Dephosphorylation in Nerve Terminals (1997)

Amphiphysin I is an abundant presynaptic protein that interacts via its COOH-terminal src homology 3 (SH3) domain with the GTPase dynamin I and the inositol-5-phosphatase synaptojanin. Both dynamin I and synaptojanin I have a putative role in synaptic vesicle recycling and undergo rapid dephosphorylation in rat brain synaptosomes stimulated to secrete by a depolarizing stimulus. We show here that amphiphysin I also undergoes constitutive phosphorylation and stimulationdependent dephosphorylation. Dephosphorylation of amphiphysin I requires extracellular Ca2+ and is unaffected by pretreatment of synaptosomes with tetanus toxin. Thus, Ca2+ influx, but not synaptic vesicle exocytosis, is required for dephosphorylation. Dephosphorylation of amphiphysin I, like dephosphorylation of dynamin I and synaptojanin I, is inhibited by cyclosporin A and FK-506 (0.5 microM), two drugs that specifically block the Ca2+/calmodulin-dependent phosphatase 2B calcineurin, but not by okadaic acid (1 microM), which blocks protein phosphatases 1 and 2B. We also show by immunogold electron microscopy immunocytochemistry that amphiphysin I is localized in the nerve terminal cytomatrix and is partially associated with endocytic intermediates. These include the clathrin-coated buds and dynamin-coated tubules, which accumulate in nerve terminal membranes incubated in the presence of guanosine 5'-3-O-(thio)triphosphate. These data support the hypothesis that amphiphysin I, dynamin I, and synaptojanin I are physiological partners in some step(s) of synaptic vesicle endocytosis. We hypothesize that the parallel Ca2+-dependent calcineurin-dependent dephosphorylation of amphiphysin I and of its two major binding proteins is part of a process that primes the nerve terminal for endocytosis in response to a burst of exocytosis.
Selective Irreversible Chemical Tagging of Cysteine with 3-Arylpropiolonitriles (2014)

Exquisite chemoselectivity for cysteine has been found for a novel class of remarkably hydrolytically stable reagents, 3-arylpropiolonitriles (APN). The efficacy of the APN-mediated tagging was benchmarked against other cysteine-selective methodologies in a model study on a series of traceable amino acid derivatives. The selectivity of the methodology was further explored on peptide mixtures obtained by trypsin digestion of lysozyme. Additionally, the superior stability of APN-cysteine conjugates in aqueous media, human plasma, and living cells makes this new thiol-click reaction a promising methodology for applications in bioconjugation.
Regulation of LPS induced IL-12 production by IFN-<i>γ</i>and IL-4 through intracellular glutathione status in human alveolar macrophages (2001)

Interleukin-12 (IL-12) is secreted from monocytes and macrophages; it exerts pleiotropic effects on T cells and natural killer (NK) cells, and stimulates interferon-gamma (IFN-gamma) secretion. Glutathione tripeptide regulates the intracellular redox status and other aspects of cell physiology. We examined whether IFN-gamma and IL-4 affect the balance between intracellular reduced glutathione (GSH) and oxidized (GSSG) glutathione, as this may affect IL-12 production in human alveolar macrophages (AM). We used both AM from healthy non-smokers obtained by bronchoalveolar lavage and the monocytic THP-1 cell line in this study. Incubation of AM for 2 h with the GSH precursor N-acetylcysteine (NAC) increased the intracellular GSH/GSSG ratio, and enhanced lipopolysaccharide (LPS)-induced IL-12 secretion by AM. In THP-1 cells, NAC increased the GSH/GSSG ratio and the expression of LPS-induced IL-12 mRNA, whereas L-buthionine-[S,R]-sulphoximine (BSO) decreased these. NAC and BSO offset their own effects on the intracellular GSH/GSSG ratio and the expression of LPS-induced IL-12 mRNA. Furthermore, exposure of AM to the helper T cell type 1 (Th1) cytokine IFN-gamma or the helper T cell type 2 (Th2) cytokine IL-4 for 72 h increased and decreased the GSH/GSSG ratio, respectively. Lipopolysaccharide (LPS)-induced secretion of IL-12 in AM was enhanced by IFN-gamma but inhibited by IL-4. These results suggest that IFN-gamma and IL-4 oppositely affect the GSH/GSSG balance, which may regulate IL-12 secretion from AM in response to LPS.