منابع مشابه
The Re-refining of Used Lubricating Oils
Re-refined lubricants have been produced in New Zealand for over 50 years. However, their acceptance as a high quality lubricant has been a gradual process, largely because of the scepticism of the public that the product can be re-refined to its original condition. In New Zealand Dominion Oil rerefines about 7 million litres per year, while an older acid clay method is used at Turua near Thame...
متن کاملStudy of Polyaromatic Hydrocarbons in Current Used Motor Oils
Used motor oils (UMO) are a remarkable commodity arousing interest of each new generation of researchers. UMO also include used gear oils, but their degree of use is much lower. The primary role of motor oil is to reduce friction and prevent corrosion. It also serves to dissipate heat and hold in suspension by-products of engine wear, combustion and degradation products. Motor oil originates fr...
متن کاملGenotoxicity of Some Essential Oils Frequently Used in Aromatherapy
Genotoxic properties of the essential oils extracted from Artemisia dracunculus (tarragon), Ocimum basilicum (basil), Cinnamomum loureirii (cinnamon), Laurus nobilis (laurel), Satureja montana (savory) and Rosmarinus officinallis (rosemary) are studied by Drosophila melanogaster Somatic Mutation and Recombination Test (SMART). The high bioactivation crossed with a high cytochrome P450-dependent...
متن کاملPapanicolaou smear cell recovery techniques used by primary care physicians.
Nine hundred Tennessee-based internists, family physicians, and obstetrician-gynecologists were randomly selected and surveyed to identify Papanicolaou smear cell recovery methods used in their practices. This 16-item survey also requested typical laboratory reporting procedures on Papanicolaous smears. The most frequently reported cell sampling technique was the combination cotton-tipped appli...
متن کاملTackling Tuberculosis in Latvia
0380 With a forceful gesture, the delicate blond unlocks the heavy door of a cell in Riga’s Central Prison clinic (Figure 1). Her name is Dr. Inga Nagele. She is the head of the clinic’s tuberculosis (TB) unit. She opens the door to check on three female prisoners who have just been admitted. The conditions in the cell are bleak. Washing hangs on a line that stretches from one wall to the other...
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ژورنال
عنوان ژورنال: Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference
سال: 2001
ISSN: 2256-070X,1691-5402
DOI: 10.17770/etr2001vol1.1927