Support failures in mine drifts represent potential hazards that threaten underground safety and productivity. The aim of this study is to determine the reliability index associated with rock supporting elements used Ridder-Sokolny mine, an located East Kazakhstan. Numerical simulations drift support First Order Reliability Method (FORM) were employed carry out analysis. Several cases considere...

Many abiotic factors impact the yield and growth of Brassica carinata (commonly referred to as or Ethiopian mustard). Very little is known about how mineral nutrients its growth, more specifically, sufficiency values for fertility over plant’s cycle life stages. This study explored impacts that plant nutrients, specifically micronutrients, can have on development distinct stages (rosette, bolti...

BACKGROUND The effect of herbivory on plant fitness varies widely. Understanding the causes of this variation is of considerable interest because of its implications for plant population dynamics and trait evolution. We experimentally defoliated the annual herb Arabidopsis thaliana in a natural population in Sweden to test the hypotheses that (a) plant fitness decreases with increasing damage, ...