Conversion of low-qual i ty , natural mixedpinelhardwood ecosystems, containing a mountain laurel (Kalmia latifolia L.) dominated understory, to more productive eastern white pine (Pinus strobus L.)l mixed-hardwood systems is a common prescript ion on relat ively xeric southern Appalachian forest s i tes . We examined the ef fects of mechanical release, interspeci f ic competi t ion, and annual...

Cardiovascular events are accelerated in chronic kidney disease (CKD). Although deranged nitric oxide (NO) pathways and asymmetric dimethylarginine (ADMA) cause endothelial dysfunction, no direct evidence for coronary artery endothelial dysfunction in CKD has been documented. CKD was induced in male dogs by heminephrectomy (1/2Nx) or five-sixths nephrectomy (5/6Nx). After 4 wk, renal ablation r...

BACKGROUND Increased left atrial diameter (LAD) is associated with elevated risk of atrial fibrillation (AF) and cardiovascular disease. Information is limited regarding the short- or long-term correlates of LAD. METHODS AND RESULTS We evaluated clinical correlates of LAD for a 16-year period in 4403 Framingham Study participants (mean age, 45 years; 52% women; median observations/participant...

In the present investigation the distribution of mean velocity, static pressure and total pressure are experimentally studied on a C-shape diffuser of 40° angle of turn with an area ratio of 1.278 and centerline length was chosen as three times of inlet diameter. The experimental results then were numerically validated with the help of Fluent and then a series of parametric investigations are c...

This study investigated the effect of vegetation plant roots on stability cover slopes solid waste landfills. A large direct shear test and a root tensile strength were conducted to quantify rooted soil revegetation plants increment in as method protect slope In test, an increase ground with presence was observed, reinforcement proposed literature modified by analyzing correlation between diame...

An equation was constructed to estimate the stem volume of Norway spruce (Picea abies (L.) Karst.) in 145 stands growing on former farmland in Sweden (Latitude 56–63° N). The mean total age was 40 ± 13 (range 17–91) years, the mean diameter at breast height (ob) was 15 ± 4 (range 5–27) cm and the mean density was 1621 ± 902 (range 100–7600) stems ha. The equation which fits the data best used t...

This study was conducted at a bottomland hardwood site with heavy textured soil in Akyazi, Turkey to determine the effect of initial spacing (3.0 x 3.0, 3.0 x 2.0, 2.5 x 1.6 and 2.5 x 1.2 m) and post-planting treatments (untreated check, moving, hoeing, disking, and hoeing plus disking) on early survival and growth of Fraxinus angustifolia Vahl. One-year old bare-root seedlings (70 +/- 5 cm in ...

We modelled how pre-commercial and commercial thinning affects development of merchantable timber, specifically large sawlogs (>20 cm diameter), on various site qualities at different harvest ages. Data from juvenile permanent sample plots post-harvest regenerated lodgepole pine stands in Alberta were projected using the Mixedwood Growth Model (MGM 21). Pre-commercial (PCT) levels (CT) with ...

Seedlings of Leucaena leucocephala (Lam.) de Wit. were planted in the field at The Agricultural Experiments Station of the college of Agriculture, King Saud University, Riyadh, Saudi Arabia in October 1995. Spacing between rows or trees within row was either 0.70 or 1.40 or 2.10 meter. The trees were pruned after two years of planting. Two trees from each plot were felled at time of pruning and...