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1 ημέρα πριν · A Gram point is a point on the critical line 1/2 + it where the zeta function is real and non-zero. Using the expression for the zeta function on the critical line, ζ(1/2 + it) = Z(t)e − iθ(t), where Hardy's function, Z, is real for real t, and θ is the Riemann–Siegel theta function, we see that zeta is real when sin(θ(t)) = 0.
1 ημέρα πριν · Illustration of the general phases of a life cycle assessment, as described by ISO 14040. Life cycle assessment (LCA), also known as life cycle analysis, is a methodology for assessing environmental impacts associated with all the stages of the life cycle of a commercial product, process, or service.For instance, in the case of a manufactured product, environmental impacts are assessed from ...
1 ημέρα πριν · Phosphorus is an essential mineral for humans listed in the Dietary Reference Intake (DRI). Food-grade phosphoric acid (additive E338 [105]) is used to acidify foods and beverages such as various colas and jams, providing a tangy or sour taste. The phosphoric acid also serves as a preservative. [106]
1 ημέρα πριν · Educational research. Educational technology (commonly abbreviated as edutech, or edtech) is the combined use of computer hardware, software, and educational theory and practice to facilitate learning. [1] [2] When referred to with its abbreviation, "EdTech", it often refers to the industry of companies that create educational technology.
