nowdays, production of high quality engine oils is one of the worries of our country’s engine oil industry. in this study, the behavior of four commercial polymers used in nation motor oil industry in obtaining the best viscosity index improver was investigated. in this regard, viscometric behavior, shear stability and polymers’ performance for engine cranking were compared at low temperature. ...

Maxillary and mandibular dentitions exhibit correspondences to a truly remarkable degree. Correlations of upper and lower opponents (isomeres) in both the deciduous and permanent dentitions are exceeded only slightly by right-left (antimere) correspondences, both in crown size (Garn and Burdi, J Dent Res 50:1407, 1971) and in tooth emergence timing (Garn and Smith, J Dent Res, in press, 1980). ...

Lowe syndrome and Dent-2 disease are caused by mutation of the inositol 5-phosphatase OCRL1. Despite our increased understanding of the cellular functions of OCRL1, the underlying basis for the renal tubulopathy seen in both human disorders, of which a hallmark is low molecular weight proteinuria, is currently unknown. Here, we show that deficiency in OCRL1 causes a defect in endocytosis in the...

In this study, molecularly imprinted polymers were synthesized for dibutyl phthalate as a bioactive chemical compound with antifungal activity which produced by Trichoderma Harzianum (JX1738521). The molecularly imprinted polymers were synthesized via precipitation polymerization method from methacrylic acid, dibutyl phthalate and trimetylolpropantrimethacrylate as a functional monomer, templat...

535.Ship I. I. and Mickelsen 0. 1964. The effects of calcium andphosphate on dental caries in children: a controlled clini-cal trial. J. dealt. Rcs. 43, 1144 1149.Stephen K. W., Beeley J. A., MacFadyen E. and Bowen W. H. 1973. The effect of calcium glycerophosphate tablets on the composition of plaque from school children. He/u.odont. Acta 17. 54. Abstract.Stookey G. K.,...

We report three experiments comparing con®dence judgments made by actors and by observers. In Experiment 1, actors generated qualitative answers (countries of the world) in a country-identi®cation task; in Experiment 2, actors generated quantitative answers (years) in a historical event-dating task. Both actors and observers indicated their con®dence in the actors' answers. Actors were signi®ca...

Dental trauma can result in tooth loss despite best efforts at retaining and maintaining compromised teeth (Dent Traumatol, 24, 2008, 379). Upper anterior teeth are more likely to suffer from trauma, and their loss can result in significant aesthetic and functional problems that can be difficult to manage (Endod Dent Traumatol, 9, 1993, 61; Int Dent J 59, 2009, 127). Indeed, teeth of poor progn...

Multiple Input Multiple Output (MIMO) has become one of the most exciting field in modern engineering.It has become one of the key technologies for wideband wireless communication systems.It is mainly used to increase capacity and data rate of any wireless systems.In this paper,we exploit the space and time diversity to decode the quasi and rotated quasi space time block codes (QOSTBC) based on...

Intercorrelations and communalities are now well known for tooth formation (Garn et al., J Dent Res 39:1049, 1960), crown size of the permanent teeth (Moorees and Reed, Arch Oral Biol 9:685, 1964; Garn et al., J Dent Res 44:350, 1965), the deciduous teeth (Garn et al., JDentRes 56:1214, 1977), and crown size of deciduous teeth during odontogenesis (Garn et al., J Dent Res 58:554, 1979). However...

Mutations in the OCRL gene are associated with both Lowe syndrome and Dent-2 disease. Patients with Lowe syndrome present congenital cataracts, mental disabilities and a renal proximal tubulopathy, whereas patients with Dent-2 disease exhibit similar proximal tubule dysfunction but only mild, or no additional clinical defects. It is not yet understood why some OCRL mutations cause the phenotype...