Abstract Inter-annual climatically driven growth variability of above-ground biomass compartments (for example, tree stems and foliage) controls the intensity carbon sequestration into forest ecosystems. However, understanding differences between climatic response stem foliage at landscape level is limited. In this study, we examined climate-growth leaf their relationship for Pinus sylvestris (...

In this paper we define a new type of rings ”almost powerhermitian rings” (a generalization of almost hermitian rings) and establish several sufficient conditions over a ring R such that, every regular matrix admits a diagonal power-reduction.

Crocus sativus L. (saffron) is a widely used food additive for its color and taste. The hypotensive effects of saffron have been shown in previous studies. The aim of this study was to evaluate the mechanism of vasodilatory effects induced by saffron on isolated rat aorta.To study the vasodilatory effects of saffron aqueous extract (0.5, 1 and 2 mg/mL), isolated rat thoracic aorta rings were co...

This study investigated the variations in tracheid length of Pseudotsuga menziesii (Mirb.) Franco from three sites Croatia relation to cambium age, within- and between-site differences, growth rate. Tracheids are main structural element P. wood, varying following different patterns that should be precisely determined. After maceration procedure, earlywood (EWTL), latewood (LWTL), annual ring (R...

We define and studyco-Noetherian dimension of rings for which the injective envelopeof simple modules have finite Krull-dimension. This  is a Moritainvariant dimension that measures how far the ring is from beingco-Noetherian. The co-Noetherian dimension of certain rings,including commutative rings, are determined. It is shown that the class ${mathcal W}_n$ of rings with co-Noetherian dimension...

Abstract Key message Larch trees respond to stand opening with an approximately 4-year delay of growth, and low precipitation in July limits radial growth after a windthrow event . Precise cross-dating disturbance events is crucial understanding the functioning forest stands, may help explain ongoing ecological processes forest. Tree rings are very often used reconstruct history disturbances st...

The bristlecone pine forests of western North America are notable for individual trees that attain great age and are used in the calibration of the radiocarbon timescale, and provide an element in millennial-scale reconstructions of temperature. But new research suggests that increasing temperature at high altitudes is fuelling a post-1950 growth spurt. Pines close to the treeline have wider an...