JOYCE: Jülich Observatory for Cloud Evolution

Jülich hyperon - nucleon model revisited

A one-boson-exchange model for the hyperon-nucleon ( N, N ) interaction is presented. The model incorporates the standard one boson exchanges of the lowest pseudoscalar and vector meson multiplets with coupling constants fixed by SU(6) flavor symmetry relations. As the main new feature of the model, the contributions in the scalar-isoscalar (σ ) and vector-isovector (ρ) exchange channels are no...

[Forthcoming in R. Joyce (ed.) Routledge Handbook of Evolution and Philosophy] Evolution and information: An overview

Many biological processes appear to involve the storing, transmission, and processing of information. Heredity is often conceptualized as the transfer of information from parents to offspring and development as the expression of that information. Information also figures at higher levels of the biological hierarchy, e.g., in animal communication and individual decision-making. Evolutionary biol...

108-113 Joyce

Family Planning Perspectives Through the mid-1980s, Medicaid eligibility requirements included very low income thresholds established by the individual states. Between 1987 and 1991, eligibility standards for poor and near-poor pregnant women were expanded dramatically. The 1986 Omnibus Budget and Reconciliation Act (OBRA) permitted states to extend eligibility (and receive reimbursement for se...

Joyce the Playwright

Joyce - A Programming Language for Distributed Systems

This paper describes a secure programming language called Joyce based on CSP and Pascal. Joyce permits unbounded (recursive) activation of communicating agents. The agents exchange messages through synchronous channels. A channel can transfer messages of different types between two or more agents. A compiler can check message types and ensure that agents use disjoint sets of variables only. The...