This study aims to investigate the adsorption characteristics of tetracycline from polluted waters using C-4-hydroxyphenylcalix[4]resorcinarene as an adsorbent. The adsorptive efficiency is optimized by adjusting various operational parameters such adsorbent dosage, pH, contact time, temperature, and initial adsorbate concentration. most efficient remediation 96% at 10.0 mg/L concentration, 0.0...

Light-emitting diode (LED) technologies are economical and efficient devices that could be considered in poultry processing as disinfection strategies. This study evaluated the efficacy of a LED-based device to reduce microbial load on chicken meat investigated it's impact selected quality parameters. Quality parameters including pH, texture color after LED-UV exposure during subsequent storage...

A legacy of coal mining in the Appalachians has provided a unique opportunity to study the ecological niches of iron-oxidizing microorganisms. Mine-impacted, anoxic groundwater with high dissolved-metal concentrations emerges at springs and seeps associated with iron oxide mounds and deposits. These deposits are colonized by iron-oxidizing microorganisms that in some cases efficiently remove mo...

The main objective of this paper was the selection of promising bacterial strains to be used as potential tools to remove phenols in olive mill wastewater (OMW) or in other food wastes. Therefore, 12 OMW samples were analyzed and 119 isolates were collected. After a preliminary screening on a medium containing vanillic and cinnamic acids, three isolates were selected to evaluate their viability...

Laccase- and peroxidase-free tyrosinase has commercial importance in the production of L-3, 4-dihydroxyphenylalanine (L-DOPA), which is mainly used in the treatment of Parkinson's disease. In the present study, isolation of an actinomycetes microbial strain capable of producing only tyrosinase is reported. Among all soil isolates, three individual colonies revealed black color around the colony...

BACKGROUND The diagnostic use of 24 hour oesophageal pH monitoring in infants is controversial because of the impact of feed buffering of gastric acidity. AIM To re-evaluate the effect of feeding on gastric pH and reflux using multipoint pH measurements. SUBJECTS Fifteen healthy premature infants fed every four hours. METHODS Oesophageal pH and intragastric pH at 3, 6, and 9 cm below the ...

The theory of strong interactions, QCD, is described in terms of a few parameters, namely the strong coupling constant αs and the quark masses. We show how these parameters can be determined reliably using computer simulations of QCD on a space-time lattice, and by employing a finite-size scaling method, which allows to trace the energy dependence of αs and quark masses over several orders of m...

The theory of strong interactions, QCD, is described in terms of a few parameters, namely the strong coupling constant αs and the quark masses. We show how these parameters can be determined reliably using computer simulations of QCD on a space-time lattice, and by employing a finite-size scaling method, which allows to trace the energy dependence of αs and quark masses over several orders of m...

We performed 796 dip-stick tests on urine from 100 wild West African chimpanzees (Pan troglodytes verus) from 4 habituated groups in the tropical rain forest of Taï National Park, Cote d'Ivoire, to establish reference values for health monitoring. Specific gravity was also measured on 359 urine samples from 62 chimpanzees. The effect of age, sex, group, month, estrus, pregnancy, meat consumptio...

In the present study, the growth of a single isolate of Candida albicans on saliva-, serum-coated or protein free (uncoated), thermocycled (4-70 degrees C for 1 min, respectively; 0, 1000 and 10 000 times) 15 commercial maxillofacial materials was investigated, by monitoring pH changes in growth media. The inhibitory effect of the tissue conditioners on fungal growth was analysed using three pa...