SHELTON, M. Cl. AND M. D. CAIN (USDA Forest Service, Southern Research Station, Monticello, AR 716563516). Structure and short-term dynamics of the tree component of a mature pine-oak forest in southeastern Arkansas. J. Torrey Bot. Sot. 126:32-48. 1999.-The R.R. Reynolds Research Natural Area is a 32.ha secondgrowth forest with little human intervention for nearly 60 years. In this paper, we ch...

Better information regarding the spatial variability of height, Diameter at Breast Height (DBH) and stocking could improve inventory estimates at the operational Planning Unit since these parameters are used extensively in allometric equations, including stem volume, biomass and carbon calculations. In this study, the influence of stand stocking on height and DBH of two even aged radiata pine (...

Five contrasting deciduous forest stands were studied to characterise the spatial structural 23 variability in human-influenced forests. These stands are representative of cultural forest types 24 widely represented in western Europe: one plantation, two coppices, one wood-pasture, and one 25 high forest stand. All stems with DBH > 5 cm were measured and mapped, and stem DBH 26 distributions, s...

The transcription factor Gata3 is essential for the development of sympathetic neurons and adrenal chromaffin cells. As Gata3 expression is maintained up to the adult stage, we addressed its function in differentiated sympathoadrenal cells at embryonic and adult stages by conditional Gata3 elimination. Inactivation of Gata3 in embryonic DBH-expressing neurons elicits a strong reduction in neuro...

Airborne laser scanning is now widely used for forest inventories. An essential part of inventory is a collection of field reference data including measurements of tree stem diameter at breast height (DBH). Traditionally this is acquired through manual measurements. The recent development of terrestrial laser scanning (TLS) systems in terms of capacity and weight have made these systems attract...

The monoamine-synthesizing enzymes tyrosine hydroxylase (TH), dopamine-beta-hydroxylase (DBH) and tryptophan hydroxylase (TrH) were immunocytochemical localized in dopaminergic, noradrenergic and serotonergic neurons of rat brain by light and electron microscopy. In dopaminergic and serotonergic neurons, the respective synthesizing enzymes. TH and TrH, were distributed throughout the cytoplasm ...

In order to characterize the specificity of expression of the neurotransmitter biosynthetic gene dopamine beta-hydroxylase (DBH), the identification of proteins that interact with the DB1 enhancer was initiated. A homeobox-containing cDNA was isolated from a PC12 expression cDNA library screened with the DB1 enhancer. The homeodomain is a member of the paired-like class, and is encoded by sever...

With the emergence of big graphs in a variety of real applications like social networks, machine learning based on distributed graph-computing (DGC) frameworks has attracted much attention from big data machine learning community. In DGC frameworks, the graph partitioning (GP) strategy plays a key role to affect the performance, including the workload balance and communication cost. Typically, ...

the aim of study was to evaluate qualitative and quantitative characteristics of old trees in pattom and namkhaneh districts in the nowshahr, northern iran. the trees quantitative characteristics of dbh, total height, slenderness coefficient, trunk height, crown length, buttress height, and canopy cover area and qualitative characteristics of crown and trunk, i.e., health, vitality, and concurr...

I investigated the ecological correlates of abundance in the Tana mangabey (Cercocebus galeritus), one of the world's most endangered primates, with the goal of recommending management strategies. I systematically selected 31 forest fragments throughout the mangabey's 60-km distribution along the lower Tana River in southeastern Kenya. Within the 31 fragments, I measured vegetation structure, f...