introduction dental trauma is one of the most serious oral conditions especially among children. it frequently occurs in children from 6 to 13 years old, often involving teeth with incomplete root formation. the most common dental injury at this age is crown fracture. arguments to provide this clinical guide, pubmed and scopus were searched using the following keywords: immature, incisor and pu...

Thyroid nodules are common, occurring in almost two-thirds of some populations; among these only about 7% are malignant. The most important question with any new discovered thyroid nodule is, “is this malignant?” The main arbiter of malignancy or benignity remains fine needle aspiration and the mainstay of treatment surgery. But given the resources involved, doing an FNAC or surgery in every di...

The gradual development of the US missile defense shield from Europe to the Persian Gulf region over the past decade and the deployment of radar components and defenses of this project, both in the Persian Gulf region and in its floating zone, have plenty implications for regional and international systems and has aggravated the fragile security of the Persian Gulf region. Some issues such as t...

Persian Gulf and its coastal areas are the world's largest source of crude oil and related industries govern the region. One of the contaminants in this area is heavy metals associated with oil spill. More importantly, vanadium, nickel and zinc can be named in this regard. In this study, the contamination of northern coasts of Persian Gulf is selected to investigate for trace metals of V, Ni, C...

Because of the paramount importance of job satisfaction and due to its main consequences such as reduction of work absence and resignation, personnel promotion and society’s health, and more importantly, its role in achievement of organization goals, this study aimed at investigating the effects of six social factors including personnel’s belief, salary and benefits, participation in organizati...

Mestastatic prostate cancer cells (MPCCs) frequently metastasize to bone, which is a “favorite soil” for colonization and proliferation of MPCCs. Prostate cancer bone mestastasis is tightly associated with tumor-induced bone lesions, most commonly caused from the etiological imbalance between osteoblastic bone formation and osteoclastic bone resorption, and from the anti-tumor immune response. ...

Reliably modelling and monitoring the climate requires robust data that can be used to feed meteorological models, and, most importantly, independently validate those models [...]