Abstract Impacts of climate warming on forests vigour are forecasted to increase in magnitude. Yet it remains unclear how stand characteristics and competition modulate the relationship between tree growth gross primary production with drought. Here, we studied spatial variation density, basal area height modulates (Basal Area Increment, BAI growth), summer NDVI, as well their responses drought...

three hundred eighteen young holstein bulls (initial bw = 375 ± 17.5 kg) were randomly allotted to one of six treatments in a completely randomized design for 56 d the treatments of which consisted of 1) the basal diet (control); 2) basal diet plus 30 mg of cu/kg of dm as cuso4; 3) basal diet plus 150 mg of zn/kg of dm as znso4; 4) basal diet plus chlortetracycline (200 mg/animal/d; ctc); 5) ba...

Climate change has significant effects on forest ecosystems around the world. Since tree diameter increment determines volume and ultimately production, an accurate estimate of this variable under future climate is great importance for sustainable management. In study, we modeled current expected change, using multilayer perceptron (MLP) artificial neural networks linear mixed-effect model in t...

Introduction: Previous studies have been shown that low frequency stimulation (LFS) has an inhibitory effect on kindling acquisition. However, the mechanism of this effect has not been completely determined. In the present study, the effect of LFS of the perforant path on seizures induced by rapid perforant path kindling was investigated. Methods: Animals were kindled by electrical stimulatio...

background: the mechanisms underlying cerebral hypercapnic vasodilatation are not fully understood.   objective: to investigate the role of nitric oxide (no) and atp-sensitive potassium (k atp ) channels in basal blood flow regulation and hypercapnia-induced vasodilatation in rabbit cerebral blood vessels.   methods: the change in cerebral blood flow was measured by a laser doppler flowmeter in...