Both bottom-up and top-down processes contribute to plant diversity maintenance in an edaphically heterogeneous ecosystem

Top-Down, Bottom-Up, or Both

Operations strategy is formed via complex processes that transpire in multiple directions at multiple organizational levels. While most previous studies focus on the “macro-level” process of strategy formation from the dominant top-down perspective, this study investigates the “micro-level” process of strategy formation that governs interactions among competitive priorities, objectives, and act...

Bottom-up, top-down

Climate-induced changes in bottom-up and top-down processes independently alter a marine ecosystem.

Climate change has complex structural impacts on coastal ecosystems. Global warming is linked to a widespread decline in body size, whereas increased flood frequency can amplify nutrient enrichment through enhanced run-off. Altered population body-size structure represents a disruption in top-down control, whereas eutrophication embodies a change in bottom-up forcing. These processes are typica...

Top-down and bottom-up processes in speech comprehension.

Speech comprehension includes both bottom-up and top-down processes, and imaging studies have isolated a frontal-temporal network of brain areas active during speech perception. However, the precise role of the various areas in this network during normal speech comprehension is not yet fully understood. In the present fMRI study, the signal-to-noise ratio (SNR) of spoken sentences was varied in...

Implementing collaborative improvement - top-down, bottom-up or both?

The research presented in this paper was aimed at increasing the current understanding of the process of developing collaborative improvement in Extended Manufacturing Enterprises (EME). Based on action research and action learning of three EMEs involving a total of thirteen companies from five European countries, the present study identifies three different approaches to collaborative improvem...