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"The aim of the study was to evaluate the marginal adaptation and shrinkage stress development of a micro hybrid restorative composite as a function of energy density. Linear displacement and shrinkage forces were measured with custom-made devices for energies of 4,000, 8,000, 16,000 and 32,000 mJ/cm2 at a constant power density of 800 mW/cm2. Marginal adaptation of composite restorations cured with the same energy desinty was evaluated before and after mechanical loading with 300,000 cycles at 70 N. The group "4,000 mJ/cm2" showed the lowest shrinkage force [2.9(0.2)kg] and linear displacement [23.5(0.7)um] but led to the worst marginal adaptation after loading [46.4(23.5)%CM] probably due to under-curing. When the maximum energy of 32,000 mJ/cm2 was applied, a slight increase in shrinkage forces [3.6(0.2) kg and 29.2 (0.8) um], and a slight decrease in marginal adaptation after loading [75.4(11.5) %CM] were observed, but these changes were not significantly different in comparison to groups cured with energies of 8,000 and 16,000 mJ/cm2. For the resin composite tested in this study, no differences in marginal adaptation could be detected above the energy threshold of 8,000 mJ/cm2."

"Abstract:While cancers of the oral cavity and oropharynx were overwhelming found in smokers and drinkers, a dramatic shift is occurring with a dramatic rise in the incidence of HPV-associated oropharyngeal cancers while oral cavity cancers and HPV-negative oropharyngeal cancers appear to be declining in incidence, reflecting the reduction in cigarette smoking. These trends also have implications for how Otolaryngologists prevent, diagnose, workup, treat, and follow these patients. The focus of information in this issue is on oral cavity and oropharyngeal cancer and the implications of the HPV epidemic."

"Sebuah laporan sejarah jurnalistik berdasarkan pengalaman penulis mengikuti Revolusi Iran mengikuti kegiatan Ayatulloh Khomeinin ketika berada di pengasingan sampai kembali dan berkuasa di negrinya (Iran) dan permasalahan lainnya."

"Study on mineralogical characteristics and physic-chemical properties of the mineral from 19 localities have been performed to assess its potential for industrial application. Zeolite rocks are considered to be applicable for industrial application as either adsorbent for water treatment or soil improvement. It is found that its adsorbent has a good adsorption to metal ions and high physical and mechanical strength in water. Moreover, a quartered composite adsorbent shows absorbability for bacteria such as E. Coli. It might be anticipated that those new adsorbent will have many applications including municipal waste treatment and biotechnology."