BACKGROUND Previous surveys of psychological strain in the Naval Service (NS) have shown higher than expected levels of strain when compared to the general population. AIM To repeat the survey last carried out in 2004 and to obtain further information on the nature of the occupational stressors associated with strain. METHODS General Health Questionnaire-12 strain rates and job/life stresso...

The nutrient balancing hypothesis proposes that, when sufficient food is available, the primary goal of animal diet selection is to obtain a nutritionally balanced diet. This hypothesis can be tested using the Geometric Framework for nutrition (GF). The GF enables researchers to study patterns of nutrient intake (e.g. macronutrients; protein, carbohydrates, fat), interactions between the differ...

OBJECTIVES Longitudinal studies have linked stress at work with a higher incidence of musculoskeletal pain. We aimed to explore the extent to which musculoskeletal pain is a cause as opposed to a consequence of perceived occupational stress. METHODS As part of the international cultural and psychosocial influences on disability study, we collected information from 305 Italian nurses, at basel...

OBJECTIVES The study has aimed to identify the relations between the supplementary person-organization fit (P-O fit) and the perceived stress among managerial staff, with special regard to the mediating role of the effort-reward balance. MATERIAL AND METHODS The study sample consisted of 715 middle-level managers, aged 25-64 years old, employed in large companies. To measure the selected vari...

Autophagy is a pathway in which a cell degrades part of its cytoplasm in vacuoles or lysosomes. To identify the physiological functions of autophagy in plants, we disrupted ATG5, an autophagy-related gene, in Physcomitrella, and confirmed that atg5 mutants are deficient in the process of autophagy. On carbon or nitrogen starvation medium, atg5 colonies turned yellow earlier than the wild-type (...

BACKGROUND Natural selection has had < 1% of hominid evolutionary time to eliminate the inevitable maladaptations consequent to the profound transformation of the human diet resulting from the inventions of agriculture and animal husbandry. OBJECTIVE The objective was to estimate the net systemic load of acid (net endogenous acid production; NEAP) from retrojected ancestral preagricultural di...

Iron (Fe) and manganese (Mn) are essential nutrients for plants. Application of high levels of either Fe or Mn is often accompanied by relatively low levels of uptake for the other nutrient. The antagonistic relationship of these nutrient elements may occur either during absorption by roots or during translocation from roots to shoot. A greenhouse study was carried out to study the effect of so...