statement of problem: primary teeth discoloration can cause mentally and socially unpleasant effects in children. this can also be a sign of systemic disease. despite the importance of this subject, a comprehensive study has not been performed yet. purpose: the aim of this study was determining the frequency of different types of primary teeth discoloration. materials and methods: in this cross...

ophiocoma erinaceus muller &troschel; (ophiocomidae) is part of the extensive group of echinoderm that contains bioactive metabolites. as, the anti cancer potential of brittle star saponin has not been reported against cervical cancer, the present study was conducted to evaluate the anticancer effect of extracted crude saponin. saponin extraction was conducted using conventional method such as ...

this study seek to examine performance of feltham - ohlsen (1995)valuation model at the tehran stock exchange and is trying to identify relation between intrinsic company value and return. this model is trying to determine the intrinsic value of company using their book value. statistical community of this study includes all tse accepted companies and statistical sample is including 37 tse acce...

trissolcus grandis (thomson) (hymenoptera: scelionidae) is the most important egg parasitoid of the common sunn pest, eurygaster integriceps puton (hemiptera: scutelleridae) in iran. demographic characteristics may be used for preliminary screening of parasitoid species or populations as well as for predicting their efficiency under different physical conditions in the field. in this study, the...

life table gives the most comprehensive explanation of the survivorship, development, and reproduction of a population. the life table parameters of an aphidophagous midge, aphidoletes aphidimyza were studied on different densities (5, 10, 20, 40, 60, 80) of third instar nymphs of aphis gossypii as prey in a growth chamber (25 ± 1 °c, 70 ± 5% rh and a photoperiod of 16l: 8d h). the pre-oviposit...

considerable attention has been given to the identification of key forms of reward and its linkage to employee engagement. for this purpose following study aims to uncover the influence of extrinsic and intrinsic rewards on employee engagement in the public sector of uganda. a sample of 184 public sector employees was randomly selected and taken from gulu district. a quantitative approach based...

the effects of some synthetic sweeteners on the rheological and physical properties of guar gum in dilute solutions were investigated.measurements include the determination of intrinsic viscosity and the particle size, surface weighted mean [d3, 2], volume weighted mean [d4,3] and specificsurface area ofguar gum andsyntheticsweeteners mixtures. the concentration of these sweeteners were 0, 0.1,...

The effects of some synthetic sweeteners on the rheological and physical properties of guar gum in dilute solutions were investigated.Measurements include the determination of intrinsic viscosity and the particle size, surface weighted mean [D3, 2], volume weighted mean [D4,3] and specificsurface area ofguar gum andsyntheticsweeteners mixtures. T...

Much IS adoption research has examined factors related to one’s intrinsic interests in IT, such as computer playfulness and personal innovativeness, and their various implications for adoption and use. But why are certain people more playful and innovative with technology than others in the first place? Prior IS research provides few answers as to the origins of these intrinsic motivators. Buil...

We find the first examples of triply periodic minimal surfaces of which the intrinsic symmetries are all of horizontal type.