Potassium is one of the most important elements for crop growth and development. However, potassium deficiencies are common in cultivated land oil crops world, which limits increase their yields. The photosynthesis, fluorescence, physiological indexes peanut plants were affected by low K stress to varying degrees, finally yield decreased. effect on photosynthetic mechanism remains unclear. In t...

We will develop algorithms that can approximate Fk by making one pass of the stream and using a small amount of memory o(n+m). Frequency moments have a number of applications. F0 represents the number of distinct elements in the streams (which the FM-sketch from last class estimates using O(log n) space. F1 is the number of elements in the stream m. F2 is used in database optimization engines t...

We will develop algorithms that can approximate Fk by making one pass of the stream and using a small amount of memory o(n+m). Frequency moments have a number of applications. F0 represents the number of distinct elements in the streams (which the FM-sketch from last class estimates using O(log n) space. F1 is the number of elements in the stream m. F2 is used in database optimization engines t...

Abstract With sufficiently light up and down quarks the isovector (a0) and isosinglet (f0) scalar meson propagators are dominated at large distance by two-meson states. In the staggered fermion formulation of lattice quantum chromodynamics, taste-symmetry breaking causes a proliferation of two-meson states that further complicates the analysis of these channels. Many of them are unphysical arti...

Generating and calibrating forces that are transferable across a range of state-points 6 remains a challenging task in coarse-grained (CG) molecular dynamics (MD). In 7 this work, we present a coarse-graining workflow, inspired by ideas from uncertainty 8 quantification and numerical analysis, to address this problem. The key idea behind 9 our approach is to introduce a Bayesian correction algo...

Salinity is one of major stresses which can severely limit plant production, especially in the arid and semi-arid regions. The present study was carried out to evaluate the impact of salinity stress on some physio-biochemical parameters in nitre bush plants (Nitraria schoberi). Thus, an experiment was carried out under natural conditions and salinity stress was induced by a combination of diffe...

The effects of artificially applied acid rain on functional activity of PS2 and oxygen evolution of bean plants (Phaseolus vulgaris L.) were investigated. The plants were subjected to single treatment with acid rain of different pH – pH 5.6 (control) and 2.4, 2.2, 2.0 and 1.8. Measurements were carried out in dynamics – at time intervals of 3–168 hours. The results showed that the treatment of ...