1 Subjects: “...Nitrogen Cycle...”

2 “...Global biogeochemical cycles of carbon and nutrients are increasingly affected by human activities...”

3 Subjects: “...Carbon Cycle...”

4 Subjects: “...life-cycle assessment...”

5 Subjects: “...biogeochemical cycles...”

6 Subjects: “...cell cycle arrest...”

7 Subjects: “...PSII repair cycle...”

8 Subjects: “...PSII repair cycle...”

9 Subjects: “...PSII repair cycle...”

10 Subjects: “...life-cycle costing...”

11 Subjects: “...marine geochemical cycle...”

12 Subjects: “...life cycle...”

13 “... the ecological consequences of on-going, global changes in climate, land use and cover, nutrient cycling...”

14 “...Marine bacteria and archaea are key players in the biogeochemical cycling of nitrogen, carbon...”

15 “... cycle favoring persistence of the pathogen during inter-epidemic periods and enhancing disease...”

16 “... are characterized by their small size, short generation time, and high rates of reproduction, with simple life cycle...”

17