The idea of the restoration of spontaneously broken gauge symmetries under extreme conditions (high temperature, high fermion densities, strong external gauge elds) was intensely studied in the 1970's and is well known [1,2] (for review see [3,4]). Under these conditions spontaneously broken gauge theories undergo various phase transitions resulting, in most cases, in the restoration of the ori...

abstract aesthetic viewpoints and philosophical concepts are effective factors which can conduct artistic movements. the impact of philosophical basis on the cultural, social, historical and artistic tendencies is to extent that the mentioned philosophical basis is specified as detailed and separated chapters. among the development and exposition of the philosophical concepts of art area, there...

Stroke is the third leading cause of death and a leading cause of adult disability in the United States.1 From a global perspective, stroke is also a leading cause of death and disability. The past 20 years have seen significant improvements in stroke prevention, yet each year, 700 000 people have a new or recurrent stroke.2,3 The medical and societal costs of stroke exceed $62 billion in the U...

despite the recent developments in peri-implant surgical regenerative procedures, re-establishing the hard and soft tissue contour is still a challenge in cases with severe ridge deficiency. it becomes more difficult when incorrectly placed implants cause screw connections to come out onto the labial surfaces of the teeth. a two-part maxillary implant supported fixed restoration was constructed...

fire is one of the incorporate vegetation management practices for grasslands and semi-arid rangelands. it may affect symbiotic relationship between range plants and mycorrhiza. accordingly, this research was aimed to investigate the effects of a spring prescribed fire on the symbiotic relationships between mycorrhiza and 6 plant species. the study was conducted in a semi-arid steppe rangeland ...

background and aims. the present study evaluated the most common reasons for replacing amalgam restorations in a university clinic. materials and methods. a total of 217 restorations which needed to be replaced were clinically and radiographically evaluated in a period of 4 months. the frequencies of reasons for replacing amalgam restorations were calculated: the assessed items included recurre...

background & aim: repair or replacement of restorations is one of the main necessities for health promotion. however, it has its own physical, psychological and economical side effects. the aim of this study was to investigate the prevalence of factors causing restoration replacement or repair. methods & materials: a non probable sampling was used for this cross – sectional observational descri...

a virtual absence of palliative, preventive and restorative care characterizes juvenile oral health care in most of the developing and underdeveloped countries. consequently, carious cavities remain untreated, which leads to pain, discomfort and functional limitation. it further, impacts negatively upon general health and cognitive development apart from causing decreased masticatory efficiency...

This paper summarizes a new Bayesian method for edge-preserving image restoration from noisy measurements. The line-site method of Geman and Geman forces region boundaries to lie along pixel boundaries, which is unnatural, particularly for 3D data. Here, we augment the intensity process with a binary \mixture site" process, which has one parameter for each pixel indicating the presence of a bou...