Numerical solution of Q^2 evolution equation for the transversity distribution Delta_T q

We investigate numerical solution of the Dokshitzer-Gribov-Lipatov-Altarelli- Parisi (DGLAP) Q^2 evolution equation for the transversity distribution Delta_T q or the structure function h_1. The leading-order (LO) and next-to- leading-order (NLO) evolution equations are studied. The renormalization scheme is MS or overline{MS} in the NLO case. Dividing the variables x and Q^2 into small steps, we solve the integrodifferential equations by the Euler method in the variable Q^2 and by the Simpson method in the variable x. Numerical results indicate that accuracy is better than 1% in the region 10^{-5}<x<0.8 if more than fifty Q^2 steps and more than five hundred x steps are taken. We provide a FORTRAN program for the Q^2 evolution and devolution of the transversity distribution Delta_T q or h_1. Using the program, we show the LO and NLO evolution results of the valence-quark distribution Delta_T u_v + Delta_T d_v, the singlet distribution sum_i (Delta_T q_i + Delta_T qbar_i), and the flavor asymmetric distribution Delta_T ubar - Delta_T dbar.They are also compared with the longitudinal evolution results.Comment: 1+29 pages, LaTeX2e, epsfig.sty, amsmath.sty, 6 eps figures. Submitted for publication. Complete postscript file is available at ftp://ftp.cc.saga-u.ac.jp/pub/paper/riko/quantum1 or at http://www.cc.saga-u.ac.jp/saga-u/riko/physics/quantum1/structure.html Our evolution program may be obtained upon email request. (See the WWW home page for the details.) Email: [email protected], [email protected], [email protected]

Mapping Hong Kong’s Atlas

Rooted in the broader project of representing Hong Kong through the visual and literary arts, the Hong Kong Atlas book series seeks to build a set of heritage-based networks through a literary series consisting primarily of paperback and digital editions, including bilingual poetry collections. The individual voices of the authors and translators combine to reorient the complexities of memory in relation to Hong Kong’s constantly shifting pasts

The Evolution of Strategic and Coordinated Bargaining Campaigns in the 1990s: The Steelworkers’ Experience

With the refocusing of attention of the labor movement on organizing, an increasing number of scholars have been directing their research toward the nature and practice of current union organizing efforts. These scholars have begun updating a literature that had grown sorely out of touch with the organizing experience of America’s unions and have provided the foundation for a more sophisticated understanding of the organizing process. While we applaud this resurgence in organizing research, there has not been a comparable resurgence in research on collective bargaining

Potency by Name? ‘Medicine Buddha Plant’ and Other Herbs in the Japanese \u3ci\u3eScroll of Equine Medicine\u3c/i\u3e (\u3ci\u3eBa’i sōshi emaki\u3c/i\u3e, 1267)

Buddhist ritual healing and medical therapies included care for domestic animals, such as the horse. In pre-modern Japan, equine medicine (ba’i 馬医) was not restricted to the treatment of military horses; it was also practiced in a religious context. The Scroll of Equine Medicine (Ba’i sōshi emaki 馬医草紙絵 巻, 1267) is an enigmatic picture scroll held by the Tokyo National Museum. It extends to more than six meters and contains images of ten divine figures related to the healing of horses, followed by seventeen pictures of plants, and a postscript emphasizing that the content of the scroll should be kept secret. Many of the plants listed in the scroll are either associated with the world of Buddhism, e.g. Yakushi-sō 薬 師草, ‘Medicine Buddha plant,’ or with horses, e.g. metsu-sō 馬頭草, ‘horsehead plant.’ Previous analyses of the scroll largely focused on the botanical identification of the sketches of the plants. This article reviews current interpretations of the scroll and explores the question of whether the plant names were thought to empower the plants to be used as potent materia medica for veterinary purposes. Based on earlier analyses, I suggest a new interpretation of the scroll from a study of religions perspective taking into consideration that some of the plant names in the scroll indicate both health-related and salvific potency. I also address the possible use of the scroll. The scarcity of textual information and the choice of textual detail and imagery in this ‘secret’ scroll suggests that it was used in the context of an oral transmission and empowerment ritual. The scroll itself seems to have been an object of ritual empowerment, rather than a compendium of materia medica for practical daily use when caring for horses

An experimental evaluation of the relative effectiveness of two methods of composition assignments in stimulating ideas

Thesis (Ed.M.)--Boston University, 1947. This item was digitized by the Internet Archive

Seventeen Famous Economists Weigh in on Copyright: The Role of Theory, Empirics, and Network Effects

The case of Eldred v. Ashcroft, which sought to have the Copyright Term Extension Act (CTEA, aka Sonny Bono Copyright Act) declared unconstitutional, was recently decided by the Supreme Court. A remarkable group of seventeen economists including five Noble laureates, representing a wide spectrum of opinion in economics, submitted an amicus curie brief in support of Eldred. The economists condemned CTEA on the grounds that the revenues earned during the extension are so heavily discounted that they have almost no value, while the extended protection of aged works creates immediate monopoly deadweight losses and increases the costs of creating new derivative works. More important, we believe, than the particulars of this case, is the articulation of the economic issues involved in copyright extension. These issues are not fully developed in the brief, nor is the case as one sided as the Eldred economists claimed. First, private ownership of creative works may internalize potentially important externalities with respect to the use of existing works and the creation of derivative works. Second, the Eldred economists neglect the elasticity of the supply of creative works in their analysis, focusing instead solely on the benefits received by authors. Consequently, they may underestimate the potential for additional creativity, which confers benefits immediately. Third, the Eldred economists neglect certain features of copyright law, such as fair use, the distinction between idea and expression, and the parody exemption, which mitigate the costs of copyright. Finally, we present data that counters a common claim that copyright extension so far out in the future can have little effect on creativity. The small fraction of books that have the majority of commercial value when they are new appear to remain valuable for periods of time that are consistent with the expanded term of copyright under CTEA.Technology and Industry