This paper presents techniques to integrate the use of variable latency units in a high-level synthesis design methodology. Components used as building blocks (e.g., functional units) in conventional high-level synthesis techniques are assumed to have fixed latency values. Variable latency units exhibit the property that the number of cycles taken to compute their outputs varies depending on th...

Complete interaction testing of components is too costly in all but the smallest systems. Yet component interactions are likely to cause unexpected faults. Recently, design of experiment techniques have been applied to software testing to guarantee a minimum coverage of all -way interactions across components. However, is always fixed. This paper examines the need to vary the size of in an indi...

of challenges. Much of classical ecological theory originates from very simple differential equations in which a single variable represents population densities. Researchers typically analyze the solutions mathematically and then compare them to abundance estimates from field or lab observations. Although highly influential in ecological theory, the models’ aggregated form is particularly diffi...

The characterisation of the risk of (new) chemicals to species/communities, when both the exposure/environmental concentration and effects (species sensitivity) are variable and uncertain, is the central issue in Probabilistic Environmental Risk Assessment. The spatial variability is one of the largest components of the total variability. This paper tries to explicitly account for this spatial ...

Ecological community assembly is governed by a combination of (i) selection resulting from among-taxa differences in performance; (ii) dispersal resulting from organismal movement; and (iii) ecological drift resulting from stochastic changes in population sizes. The relative importance and nature of these processes can vary across environments. Selection can be homogeneous or variable, and whil...

ecological destruction in human-dominated landscapes has significant impacts on environment sustainability internationally. landscape planning can play a role in mitigating the effects of human-related activities. one element of landscape planning involves the analysis of the biological, spatial and social arrangement of areas in an urban environment and identifying characteristics that are und...

BACKGROUND Exposure to particulate matter has been associated with increased risk of cardiovascular and respiratory diseases. We evaluated the ecological correlation between standardized hospital discharges with diabetes in Italian provinces and fine particulate matter (PM2.5) adjusting for common risk factors, socioeconomic factors and differences in hospitalization appropriateness. METHODS ...