OBJECTIVE To evaluate the role of zinc and vitamin A supplementation in the recovery of Indigenous children hospitalised for acute diarrhoea. DESIGN A randomised controlled 2 by 2 factorial trial of supplementation with zinc and vitamin A. SETTING AND PARTICIPANTS Aboriginal children (aged < 11 years) hospitalised for acute diarrhoea at Alice Springs Hospital, Northern Territory, April 2001...

Bioreduction of ferric iron-rich wastes is a rapidly emerging technology for the extraction/ recovery of metals from low-grade ores and metallurgical wastes. However, despite studies being successful, they have only been demonstrated at laboratory scale and issues relating to economic, industrial scale application have yet to be studied. Using bioreduction as a pre-treatment to increase recover...

Zinc filter cakes (ZFCs) have economic values as secondary sources, but also are classified hazardous waste and negative effects on human health the environment because they contain several heavy metals. Especially extraction recovery of lead zinc metals from ZFCs will provide environmental benefits. Therefore, in this study, with a weak acid (ammonium acetate, AmAc) leaching was investigated, ...

OBJECTIVE Children in developing countries are at a high risk for zinc deficiency. Supplemental zinc has previously been shown to provide therapeutic benefits in diarrhea. The objective of this study was to examine the efficacy and safety of supplemental oral zinc therapy during recovery from acute or persistent diarrhea. METHODS We conducted a meta-analysis of randomized, controlled trials t...

OBJECTIVE To evaluate the impact of zinc supplementation on the clinical course, stool weight, duration of diarrhoea, changes in serum zinc, and body weight gain of children with acute diarrhoea. DESIGN Randomised double blind controlled trial. Children were assigned to receive zinc (20 mg elemental zinc per day) containing multivitamins or control group (zinc-free multivitamins) daily in thr...

Diarrhea is a worldwide problem facing both developing countries and developed countries, especially in pediatric population. Because of shortage of health facilities and lack of good food in developing countries, it is known fact that developing countries are facing this death taking problem more. The main purpose of this study was to examine the various factors which affect the recovery time ...

This study was performed in two phases of work. In the first stage, alkaline leaching of lead and zinc from an Iranian low-grade oxide ore was examined and the influence of the operating variables including stirring speed, leaching temperature, NaOH concentration and liquid to solid ratio was determined experimentally. The optimum condition was found to be NaOH concentration of 4 M, liquid to s...

We looked at how zinc transporter 3 ZnT-3) mRNA expression in the rat retina is affected by low dietary zinc. Groups of 12 four-week-old male Sprague Dawley rats were fed on a low-zinc diet for 2, 4 or 6 weeks. Half of each group was then fed with a normal-zinc content diet and the other half was given a low-zinc content diet. The expression of ZnT-3, carbonic anhydrase 2 (CA2) and 14 (CA14) we...

Objectives. Pneumonia is one of the common mortality causes in young children. Some studies have shown beneficial effect of zinc supplements on treatment of pneumonia. The present study aimed to investigate the effects of short courses of zinc administration on recovery from this disease in hospitalized children. Methods. In a parallel Double-Blind Randomized Controlled Trial at Ayatollah Golpa...