The demographic characteristics of Helicoverpa armigera (Hübner) reared on hybrid sweet corn (Zea mays L. variety saccharata) (hybrid super sweet corn KY bright jean) and on an artificial diet were compared by using the age-stage, two-sex life table. Because the hatch rate of eggs varies with maternal age, age-specific fecundity was calculated based on the numbers of hatched eggs to reveal the ...

Dietary uptake could be the primary route of arsenic (As) bioaccumulation in marine fish, but the bioavailability of inorganic and organic As remains elusive. In this study, we investigated the trophic transfer and bioavailability of As in herbivorous rabbitfish Siganus fuscescens and carnivorous seabass Lateolabrax japonicus. Rabbitfish were fed with one artificial diet or three macroalgae, wh...

Besides apple, its primary host, the codling moth Cydia pomonella uses walnut as a secondary host. Abundance of toxic naphthoquinones, among which juglone prevails, does not restrain this economically important pest insect from infesting walnut, but processes underlying the suitability of this host were yet unknown. Larvae feeding on an artificial diet supplemented with juglone at naturally occ...

OBJECTIVE We aimed to ascertain the factors potentially contributing to the manifestation of pressure ulcers (PU) due to poor nutritional status in a nonselected hospitalized population. SUBJECTS AND METHODS This is a prospective cohort study of 471 adult inpatients treated at our university hospital. Study parameters included anthropometric data, demographics, medical history, mood status, d...

Some methods of artificial intelligence are evaluated in relation to development of medical elementology and primary prevention of health hazards related to antropogenic changes in the natural environment and the human food chain, diet, etc. Searching for a new paradigm of the cross-disciplinary system approach to nutritional prevention of excess or deficiency of some elements is very timeand c...

The lepidopterans Platynota rostrana (Walker) (Tortricidae) and Phidotricha erigens Raganot (Pyralidae) have been found frequently in citrus groves in São Paulo State in recent years. Since in Brazil, the fertility cycle of these two species is largely unknown, as are details of the damage wrought by them in crops, this research studied these aspects of the two species, which were kept under la...

Effects of natural and artificial diets under two rearing methods (group individual) on larval pupal development survivability Spodoptera litura (Fab.) were studied. The survival rate larvae pupae was significantly affected by (P = 0.05), which higher diet when reared individually. Results this study documented the growth index from diet. indices 5.24 1.65 individual group rearing, respectively...

AIMS To determine whether artificial food colourings and a preservative in the diet of 3 year old children in the general population influence hyperactive behaviour. METHODS A sample of 1873 children were screened in their fourth year for the presence of hyperactivity at baseline (HA), of whom 1246 had skin prick tests to identify atopy (AT). Children were selected to form the following group...