We show that a class of cases that has been previously studied in terms of learning of abstract phonological underlying representations (URs) can be handled by a learner that chooses URs from a contextually conditioned distribution over observed surface representations. We implement such a learner in a Maximum Entropy version of Optimality Theory, in which UR learning is an instance of semisupe...

A retrospective evaluation of attitudinal, behavioural and knowledge change among diverse stakeholder groups was conducted in Limpopo Province of South Africa to assess the effectiveness of a series of values clarification (VC) interventions. Telephone and face-to-face interview (193) results revealed that over two-thirds (70.2%) reported behavioural changes and 93.2% reported increased compass...

Flow past the opening of a deep cavity can excite and sustain longitudinal acoustic modes resulting in large pressure fluctuations and loud tone generation. An analytic model of the interaction of the free stream with the acoustic flow field using concentrated vortices in the shear layer is proposed. The model includes a computation of the power transferred by the traveling vortices to the acou...

For P ∈ F2[z] with P (0) = 1 and deg(P ) ≥ 1, let A = A(P ) be the unique subset of N such that ∑ n≥0 p(A, n)zn ≡ P (z) (mod 2), where p(A, n) is the number of partitions of n with parts in A. Let p be an odd prime number, and let P be irreducible of order p ; i.e., p is the smallest positive integer such that P divides 1+ zp in F2[z]. N. Baccar proved that the elements of A(P ) of the form 2km...

INRA, AgroParisTech, UMR1313, Animal Genetics and Integrative Biology, 78350 Jouy-en-Josas, France; Wageningen UR Livestock Research, POB 65, 8200 AB, Lelystad, The Netherlands; Lohmann Tierzucht GmbH, 27454 Cuxhaven, Germany; The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush, Midlothian, EH25 9RG, Scotland; Institute of Farm Animal Genetic...

The urease inhibitor N-(n-butyl) thiophosphoric triamide (NBPT) reduces NH3 losses from urea (UR) surface-applied to soils, but its efficacy may be lower in acidic soils. period when inhibition occurs efficaciously change with soil pH. This needs clarified tropical soils which are commonly acidic. study evaluated the effectiveness of NBPT-treated delay and reduce ammonia volatilization two at t...