Intensive site-based surveys and peat evaluation at local or project levels are essential for spatial planning or land management purposes due to the uncertainties of peat presence and thickness at the project scale.
Regardless of the specific demands of the task, it has been found that the hippocampal formation is essential for spatial alternation behavior (Roberts et al., 1962; Olton and Papas, 1979; Rawlins and Olton, 1982; Bannerman et al., 1999).
Studies in transgenic mice suggest that the D1 receptor (El-Gundi et al. 1999) and not the D3 or D5 receptor are essential for spatial learning (Granado et al. 2008; Xing et al. 2010).
Nevertheless, the hippocampus is one brain area that is essential for spatial short-term memory (e.g., Deacon et al. 2002; Sanderson et al. 2007), and performance is likely to involve extended neural circuits, which include the hippocampus as one component.
These findings indicate that CaMKIV might not be essential for fear memory or spatial memory, although it is possible that the activities of other neural mechanisms or signaling pathways compensate for the CaMKIV deficiency.
Precise spatial relationships may be essential for assembly of functional ribosomes, constraining ribosomal RNA genes from drastic change [1].
Such flexibility will be essential for supporting and encouraging management at larger spatial scales, promoting and enabling partnerships across agencies and organizations, and making logical adjustments to policies, goals, and plans for meeting the challenges posed by climate change.
Furthermore, due to its low spatial distribution, accurate delivery of cells which may be essential for subsequent migration into nearby lymph nodes cannot be properly evaluated using scintigrapy.
To understand complex patterning processes quantitatively, spatial-temporal modeling has been proven to be essential, for example in Drosophila.
Multipoint observations of plasma waves are essential for separating spatial and temporal variations of a plasma turbulence.
