Many CSPs can be effectively represented and efficiently solved using matrix models, in which the matrices may have symmetry between their rows and/or columns. Eliminating all such symmetry can be very costly as there are in general exponentially many symmetries. Cost-effective methods have been proposed to break much of the symmetry, if not all. In this paper, we continue with this line of res...

We review research on the ̄uency heuristic as a basis for the subjective experience of familiarity. Then, we explore the links between the construct of ̄uency and the automatic versus consciously controlled memory processes that are estimated using the process dissociation procedure, and the phenomenological experiences studied using ``Remember'' and ``Know'' judgements. Although the ̄uency tha...

There is an emerging consensus among macro-economists that differences in technology across countries account for the major differences in per-capita GDP and the wages of workers with similar skills across countries. Accounting for differences in technology levels across countries thus can go a long way towards understanding global inequality. One mechanism by which poorer countries can catch u...

The adoption of service-oriented architectures based on web services in industrial automation promises increased interoperability and flexibility. Since the development and deployment of web services requires in-depth programming knowledge, adequate tools to ease the work of automation engineers are required. In particular, the orchestration of existing web services to workflows is a challengin...

In this paper constraints on technology choice and credit access are introduced into the Melitz (2003) model in a dynamic setting in order to explain the factors that limit the benefits to a firm from trade liberalization. Theoretical analysis shows that firms face credit constraints depending on their initial productivity and the cost of the credit. As a result, credit constrained firms may ne...

OBJECTIVE Electronic health record (EHR) adoption is encouraged by health plans, government agencies, and both the American Academy of Family Physicians and the Washington Academy of Family Physicians (WAFP), but rates of EHR adoption by family physicians in Washington were previously unknown. This study measured current rates of EHR adoption by family physicians in Washington State, as well as...

Climate change is one of the most serious challenges confronting agriculture, particularly, in rural Nigeria. This study examined the perception, adaptation strategies and challenges of climate change among rural households in Kogi State, Nigeria. A two stage sampling techniques was used in the study. The first stage involves the purposive selection of six (6) rural farming communities, followe...

The study assessed farmers’ perception of effectiveness of agricultural extension agents in Anambra State, Nigeria. The population of the study comprised all contact farmers and extension agents in Anambra State. Multi-stage, purposive and simple random sampling techniques were used to select 200 respondents comprising 160 farmers and 40 extension agents. Data for the study were collected throu...

Soil erosion is one of the most important forms of land degradation that threatens continued and sustained agricultural production in Ghana. The most severely affected areas are the three northern regions especially Upper East Region, where large tracts of land have been destroyed by water erosion leading to soil depth reduction and decline in soil fertility. This study was carried out in Talen...