The decision-making process of conserving biodiversity within the confines of sustainable livelihoods and development is examined. It is one of the greatest dilemmas facing the conservation community because of the multifaceted nature of activities involved. The case of the conservation of coastal wetlands in Ghana (from 1993 to 1999) is utilised in developing a 'community conservation interface' (CCI) model for the active participation of local communities. The ethical basis of the model is to promote accountability, transparency and responsibility throughout a (...) project's planning and implementation process. Additionally, the CCI model seeks to provide a forum, the CCI seat, for resolving conflicts, developing further partnership and building capacity. It is a decision-making model that is applicable to community-based conservation and partnerships in protected area management. As an adaptive management initiative built on the concept of community conservation, the model is vital for decision-making forums for managing biodiversity at a broad-scale level. Finally it attempts to unravel the true meaning of participation, and the creation of institutional interfaces for the setting of common goals and indicators. (shrink)
We have investigated the exclusive, radiative B meson decays to K 2* in 89 × 106 BB̄ events with the BABAR detector at the PEP-II storage ring. We measure the branching fractions B0γ) = × 10-5 and B+γ) = × 10-5, where the first error is statistical and the second systematic. In addition, we measure the CP-violating asymmetry A CP[B0 → K2* 0γ] = -0.08 ± 0.15 ± 0.01.
Branching fraction measurements using B-meson decays to Ks0π+π- are presented. These measurements were obtained by analyzing a data sample of 88.9 × 106 Υ → BB̄ decays collected with the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. Using a maximum likelihood fit, the following branching fraction results were obtained: B = × 10 -6, B × 10-6, and Bπ+) = × 10-6. The CP violating charge asymmetry AK*π for the decay B0 → K*+π- was measured to be AK*π (...) = 0.23 ± 0.18-0.06+0.09. For all these measurements the first error is statistical and the second is systematic. (shrink)
In  it is proved the categorical isomorphism of two varieties: bounded commutative BCK-algebras and MV -algebras. The class of MV -algebras is the algebraic counterpart of the infinite valued propositional calculus L of Lukasiewicz . The main objective of the present paper is to study that isomorphism from the perspective of logic. The B-C-K logic is algebraizable and the quasivariety of BCKalgebras is the equivalent algebraic semantics for that logic . We call commutative B-C-K logic, briefly cBCK, to the (...) extension of B-C-K logic associated to the variety of commutative BCK–algebras. Moreover, we present the extension Boc of cBCK obtained by adding the axiom of “boundness”. We prove that the deductive system Boc is equivalent to L. We observe that cBCK admits two interesting extensions: the logic Boc, treated in this paper, which is equivalent to the system L of Lukasiewicz, and the logic Co that is naturally associated to the system Balo of `-groups . This constructions establish a link between L and Balo , that would be a logical approach to the categorical relationship between MV–algebras and `-groups. (shrink)