Báo cáo khoa học: "Border effects and size inequality in experimental even-aged stands of poplar clones (Populus)" pptx

... origin of size hierarchies of individuals. The con- cept of size inequality (Weiner and Solbrig, 1984) can be used for describing these size hierarchies. The increasingly ... a growing size inequality. The objectives of this paper are twofold: (1) to characterize a number of poplar cul- tivars by some statistical parameters (ie size i...

Ngày tải lên: 08/08/2014, 19:21

... range of stands. In these conditions, the relative error is acceptable for stands with a biomass over 250 tperha (about 20% of the mean value), but is too high for stands with low biomass (50% of ... root system of a Douglas-fir stand were calculated using the regression technique. Nine trees, evenly distributed in the girth classes of the stand, were felled for measurement...

Ngày tải lên: 08/08/2014, 14:21

... the highest IR index was found at the beginning of autumn and the lowest in spring. Accordingly, the periods showing the highest percent- ages of N may be intimately correlated with those in which ... Decomposition of needle litter in Pinus contorta and Pinus sulvestris, Scand. J. For. Res. 2 (1987) 3–12. I. Santa Regina and T. Tarazona 306 aboveground biomass in Mg ha –1...

Ngày tải lên: 08/08/2014, 14:21

... (ÆÆÆÆ) TMA-DPH incorporated into spores of F. solani in the absence of VtA 3 (n) and in the presence of 1.5 l M VtA 3 (s )and3 lM VtA 3 (n). Insert in (B) shows the evolution of the scattering peak (membrane ... vis- cotoxins, by examining the interaction of VtA 3 with fungal cells. We describe a detailed investigation of the cellular and signalling characteristics of...

Ngày tải lên: 19/02/2014, 07:20

... more in WAT of TG mice than in WAT of WT mice. Serum levels of triglyceride, glucose, leptin and insulin, and insulin sensitivity, in TG mice After 6 weeks of normal or HF diet, serum levels of triglyceride, ... WT and TG mice (S55) were stained with antibody against human H-PGDS. Bars: 100 lm. (D) PGDS activity in liver of WT and S41, S55 and S66 TG mice. Roles...

Ngày tải lên: 16/02/2014, 09:20

... degrees of instantiation in LTFS, however, corresponding to long subtyping chains that terminate in ⊥. A more general and useful primitive in a typed language with such chains is suspending until ... unsuspend the Finiteness Marking Principle on a sign-typed TFS that contains this substructure. 4 Measuring the cost of delaying How much of a cost do we pay for using delay- ing?...

Ngày tải lên: 20/02/2014, 15:21

... lines of text and the average comment or page is about 20 lines of text. EIES offers the user a complete set of differing inter- faces including menus, commands, self-defined commands and ... progra,,m4ng of interfaces for individuals and groups. In addition to the standard message, confer- ence and notebook features, EIES has been designed with the incorporation of...

Ngày tải lên: 21/02/2014, 20:20

... Restructuring Verbs in Italian HPSG Grammar. In Proceedings of the 29th Regional Meeting of the Chicago Lin- guistic Society, 1993. To appear. [Pollard andSag, 1987] C. Pollard and I. Sag. Information-Based ... and such combination should be accounted for in the morphological mod- ule. An account in terms of template morphology as in [Simpson and Withgott, 1986]...

Ngày tải lên: 22/02/2014, 10:20

... including creating it, storing it, editing it, com- paring it with other stored models, finding it again in a principled way, visualizing it, sharing it, running it, analysing the results of the ... serial arrangements of kinases and kinase kinases (etc.) in signalling cascades, since amplification alone could (have evolved to) be effected simply by increasing the rate constants of...

Ngày tải lên: 07/03/2014, 12:20

... imposing a continuous load of calcium to the neuron. The turning point upon which the cell looses the ability to buffer the incoming calcium resulting in an abrupt, sustained and irreversible increase ... increase in the amount of ROS [21]; (b) loss of cytochrome c impairs the flow of electrons in the respiratory chain inducing over- reduction of the complexes, favouring the...

Ngày tải lên: 07/03/2014, 12:20