ADOPTION OF 37MM MAXIM AUTOMATIC GUNS BY RUSSIAN NAVY IN LATE 19TH TO EARLY 20TH CENTURY



Technical Drawing, Spatial Intelligence and CAD in General Education - Justifiability, Needs, Opportunities, Challenges

Technical drawing and graphic communications are an inescapable part of the development of technical creativity as well a part of general technology education.Computer-aided design (CAD) has been developing and used in the industry for almost six decades.For the past thirty years, CAD is gradually included in secondary and higher education, but als

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Microbial community diversities and taxa abundances in soils along a seven-year gradient of potato monoculture using high throughput pyrosequencing approach.

BACKGROUND: Previous studies have focused on linking soil community structure, diversity, or specific taxa to disturbances.Relatively little attention has been directed to crop monoculture soils, particularly potato monoculture.Information about microbial community changes over time between monoculture and non-monoculture treatments is lacking.Furt

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