petri disease is responsible for grapevine decline and occurs wherever grapevines (vitis vinifera) are cultivated. phaeoacremonium species are among the principal hyphomycetes associated with petri disease. during 2009, a field survey was conducted throughout different vineyards in the fars province of iran in order to determine the fungal pathogens associated with the vine decline observed in ...

Concern has been raised about green discoloration of injection-site lesions in chuck muscles in modified-atmosphere packages. Objectives were: 1) to recreate green lesions, 2) to compare the severity of discoloration of injection-site lesions in chucks from carcasses of control or vitamin E-supplemented steers, and 3) to identify pigment(s) responsible for discoloration via in vitro color react...

This work is devoted to the investigation of discoloration synthetic and industrial effluent, using a quarry residue (MbP), which material naturally composed mixed oxides, compared zinc oxide (ZnO), acting as photocatalysts adsorbents. The optimization pH catalyst concentration parameters was carried out, effluent then treated by photocatalytic reactions, adsorption, photolysis. Industrial supp...

nasoohi n 1 hoorizad m1 torabzadeh tari n 2   1- assistant prof, department of operative dentistry, islamic azad university, dental branch, tehran,iran   2-dentist   corresponding author : nasoohi n: department, no 4, 10th neyestan ave, pasdaran, tehran   tel : 09125392175 email: [email protected]     background and aim: discoloration of dental composites is one of the major reasons of the...

introdouction: according to the importance of enamel discoloration and controversy regarding the effect of different orthodontic bonding materials on tooth discoloration, the aim of this study was to determine enamel discoloration following orthodontic brackets using different bonding materials. materials and methods: this in-vitro study, 30 recently extracted human premolars with intact enamel...

Antonella Tosti, Donatella Mattioli, Cosimo Misciali, Department of Dermatology, University of Bologna, Via Massarenti 1, 40138, Bologna (Italy) To the editor Green discoloration of hair is well known as a consequence of copper exposure [1-5]. It can occur in copper workers [1], and it has been described following exposure to swimming pool water containing copper [2]. The following report descr...