Introduction: The Mars Exploration Rovers have detected distinctive suites of evaporite minerals at the Martian surface precipitated from fluids derived from basaltic weathering under low pH conditions. Orbital spectroscopic observations have confirmed the global distributions of these materials. The formation and stability of evaporite assemblages have been well modeled at Meridiani Planum for...

Trace elements are a major area of nutritional status which influence brain functioning and behavior. Recent studies have found significantly abnormal levels of trace nutritive minerals and trace toxic metals in the head hair of children from disadvantaged backgrounds. Utilizing hair element analysis, this study examined 26 trace elements in two groups of young Appalachian children: an economic...

Zinc (Zn) as a micro mineral is essential for growth, skeletal development, and immune competence in chickens (Hudson et al., 2004). Inorganic Zn salts, such as sulphate and oxide, are generally supplemented in diets to meet the Zn requirement of chickens (Cao et al., 2002). However, in the recent past Inorganic trace minerals (ITMs) have been replaced by organic trace minerals (OTMs) because o...

The purpose of this study is twofold: to examine macro (calcium, magnesium, and phosphorus) and trace mineral (iron) concentration in oriental supplements (OS), and to define OS prevalence in elite athletes. Participants of this study were 928 varsity athletes (male: 680, female: 248) with 23 sports types. Recent 3-month dietary supplements (DS) and OS practice was surveyed during training peri...

Though almost 20 years have elapsed since the introduction by the writer of the method of nutrient-solution purification for studying trace-element requirements of plants, no application of this procedure to studies with bacteria has as yet been made. For reasons readily apparent, it has long seemed desirable to the writer to obtain data affording a direct comparison of the effects of this tech...