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This rich collection of case studies by design educators critically explores the current practice of service-learning in architecture, landscape design, and urban planning, radically revising the standard protocol for university-community collaborations. The pedagogical framework advanced by the authors offers a set of examples, ideas, and guidelines that… (More)
A coupled channel model is used to study the nature of the f 0 (980) resonance. It is shown that the existence of two poles close to K ¯ K threshold, as found in many data fits and confirmed here, can be reconciled with the K ¯ K molecular origin of the f 0 (980). Due to a strong coupling between channels the number of the S-matrix poles close to the… (More)
We study pp annihilation at rest into πφ and γφ. and ρ + ρ − for pp → πφ states is sizable, of order (0.90 to 2.6) × 10 −4 in the branching ratio, but smaller than experiment. For pp → γφ the rescattering contributions are negligible, but the γφ channel is well explained by a ρφ intermediate state combined with vector meson dominance.
We evaluate three meson doorway mechanisms for nucleon-antinucleon annihilation at rest for the first time. Detailed results are presented for the final state φπ 0 originating from the 3 S 1 initial state and for the φρ channel originating from 1 S 0. The results presented also include the improved contributions from two meson doorway states and from the… (More)
The φπ + π − production in p¯ p annihilation at rest is strongly enhanced by a two step mechanism with intermediate K ¯ Kππ states. The relative yield of the φ production due to the resonant final state interaction decreases with increasing total energy of the p¯ p system.
Two lipase methods, the method for the aca (DuPont) and the method according to Myrick (1976) Thesis, Birmingham Al.) (Calbiochem-Behring), were compared with the lipase method of Rick (1969) Z. Klin. Chem. Klin. Biochem. 7, 530--539) and with the amylase determination. The diagnostic value of the aca method, the amylase and the lipase method of Rick were… (More)