177,582 research outputs found
On strong laws for generalized L-statistics with dependent data
Full text linksummary:It is pointed out that a strong law of large numbers for L-statistics established by van Zwet (1980) for i.i.d. sequences, remains valid for stationary ergodic data. When the underlying process is weakly Bernoulli, the result extends even to generalized L-statistics considered in Helmers et al. (1988)
Helmers measuring soil moisture and temperature with use of Coleman units and meter
No full textHelmers measuring soil moisture and temperature with use of Coleman units and meter
Detectability of Self-Lensing Supermassive Black Hole Binaries in Quasars
No full text2022Active galactic nuclei (AGN) or quasars are distant and luminous objects thought to be powered accretion into supermassive black holes (SMBHs) whose luminosity rivals that of their local galaxy. Since most galaxies are thought to contain SMBHs and galaxies commonly merge, it is likely that some AGN contain two SMBHs. While a few dual-AGN or supermassive black hole binaries (SMBHB) have been discovered at parsec (pc) and kiloparsec separations, there are currently no unambiguous detection of SMBHBs (Tremblay et al. 2016; Bansal et al. 2017)[1][2]. One promising new detection technique is through gravitational self-lensing events which may be possible with upcoming observing programs. This thesis develops a method to predict the probability that a given SMBHB system will generate a detectable lensing event by varying the geometric parameters defined by gravitational lensing geometry. The probability that a SMBHB is located at a given separation is calculated by comparing timescales of the different phases of the SMBHB’s lifespan with its total lifespan. This is then combined with the lensing probability to create a probability distribution of lensing events at different separations and masses. This paper explores the effects of different parameters on the probability distribution, focusing primarily on the mass of the SMBHB, its separation distance, the inclination of the system, and the mass ratio of the two black holes. The detectable lensing events from each parameter combination are then combined to determine the overall rate of detectable lensing events that could be detected in a given population. A method is developed to predict lensing characteristics of corresponding magnification and orbital period for different system conditions. Combining the observables with the probability function allows the number of lensing events that are likely to be detected by the upcoming Vera C. Rubin observatory to be determined. Based on this study, the Rubin observatory, will detect up to ∼ 1.9 × 104 lensing events over a 10-year period. This methodology can be adapted to the specification of other datasets and is hereby presented to the quasar research community
Not Russian Enough? Nationalism and Cosmopolitanism in Nineteenth-Century Russian Opera
No full textIn the nineteenth century, Russian composers and critics were encouraged to cultivate a national style to distinguish their music from the dominant Italian, French, and German traditions. Not Russian Enough? explores this aspiration for a nationalist musical tradition as it was carried out in the cosmopolitan world of opera. Rutger Helmers analyzes the cultural context, music, and reception of four important operas: Glinka's A Life for the Tsar (1836), Serov's Judith (1863), Tchaikovsky's The Maid of Orléans (1881), and Rimsky-Korsakov's The Tsar's Bride (1899). He discusses such issues as the influence of Italian and French opera, the use of foreign subjects, the application of local color, and the adherence to the classics, and considers how these related to a sense of "Russianness." Besides yielding new insights for each of these works, this study offers a fresh perspective on the function of nationalist thought in the nineteenth-century Russian opera world
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
Full text linkBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Business R&D expenditure and capital in Europe
Full text linkThis study presents new estimates of business R&D capital stocks for 22 countries at the aggregate and industry levels. At 9 percent of GDP, the EU business R&D capital stock falls short of its US and Japanese counterparts. Within the EU, R&D capital stocks are much lower in the southern and the new member states, reflecting large and persistent disparities in R&D expenditure. There was hardly any convergence over the past decade. The R&D capital stock is concentrated on three technologyintensive manufacturing industries and is positively correlated with growth in total factor productivity across countries and industries. Finally, the ratios between the stocks of R&D capital and tangible capital suggest marked differences in how R&D and tangible capital are combined in production.R&D capital stock; R&D expenditure; tangible capital stock; R&D intensity; high-tech manufacturing
Conflict & Compassie: een hedendaagse blik op Wagner en een wagneriaanse blik op onszelf.
Full text link(text in Dutch) Mediated by the so-called Dream-organ ('Traumorgan') which opera composer Richard Wagner mentions in his writings, the author engages in a fictitious dialogue with Wagner. Their dialogue focuses on a few topics related to the conference theme 'Conflict and compassion' that were of concern to Wagner in his days and which have undergone some serious changes since his death. The author discusses with Wagner the 'death of tragedy', sexuality and desire after the sexual revolution, the attractivity of musical genres like film and dance music, and the role of travel
Letter from R. R. Zellick, Assistant Trust Officer, Anglo California National Bank of San Francisco, to Joseph R. Goodman, October 2, 1942
No full textLetter from R. R. Zellick, Assistant Trust Officer at The Anglo California National Bank of San Francisco, to Joseph R. Goodman, regarding property owned by Dave Tatsuno. Zellick mentions a dispute between current tenants and Tatsuno, and that Tatsuno has asked Goodman to help locate trustworthy tenants.Personal correspondence, organizational records, government documents, publications, and other papers created or collected by Joseph R. Goodman documenting the forced removal and incarceration of Japanese Americans during World War II, as well as organized resistance to incarceration. Included in the collection are records of the Japanese Young Men's Christian Association and the Japanese American Citizens' League in San Francisco, including papers of the Japanese YMCA's executive secretary Lincoln Kanai; Sakai family papers; Goodman's correspondence to and from Japanese American incarcerees, organizations opposing forced removal and incarceration of Japanese Americans, the War Relocation Authority, and others; publications, photographs, and ephemera from the Topaz Relocation Center, where Goodman taught high school; War Relocation Authority records and publications; and newspaper clippings, pamphlets, and reports about forced removal and incarceration created by various government, religious, and civic organizations, in California and nationwide
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