We obtain existence and uniqueness fixed point theorems as well approximation results for some classes of mappings defined by symmetric contractive type conditions in a convex metric space the sense Takahashi. By using new approach, i.e., technique enrichment mappings, we general which extend known Banach contraction mapping principle from spaces other corresponding enriched on spaces. To indic...

In this paper we investigate the role played by one aspect of context, namely encyclopedic knowledge, to the interpretation of clause arguments. We discuss cases where the assignment of a specific semantic role of a predicate to a clause argument is not determined by the grammar alone, but requires extragrammatical resources (in particular, world knowledge), and then present a formally explicit...

Easy access to external information is essential to the performance of many information-intensive activities conducted in computer application systems. However, information repository systems that support the retrieval of external information are researched as a self-contained problem with no consideration of the context where the information is applied. We propose the concept of information-en...

[18F]KF, considered as a reference standard for positron emission tomography of the skeletal system, was produced by the bombardment of enriched water ([18O]H2O>95%) with high energy protons in NRCAM cyclotron. After the extraction of fluoride from enriched water as KF, and passing it through microbial filter and fine adjustment of acidity and osmolality, it was converted into an injectab...

introduction: the aim of this in vitro study was to evaluate the effect of various irrigants on the push-out bond strength of calcium-enriched mixture (cem) cement and mineral trioxide aggregate (mta). methods and materials: a total of 140 dentin disks with a thickness of 1.5±0.2 mm and lumen size of 1.3 mm, were randomly divided into 12 groups ( n =10) and 4 control groups ( n =5). the lumen o...

introduction: the aim of this in vitro study was to evaluate the tooth discoloration induced by calcium-enriched mixture (cem) cement and mineral trioxide aggregate (mta). methods and materials: forty five endodontically treated human maxillary central incisors were selected and divided into three groups ( n =15) after removing the coronal 3 mm of the obturating materials. in the mta group, whi...

introduction : teeth with irreversible pulpitis usually undergo root canal therapy (rct). this treatment modality is often considered disadvantageous as it removes vital pulp tissue and weakens the tooth structure. a relatively new concept has risen which suggests vital pulp therapy (vpt) for irreversible pulpitis. vpt with calcium enriched mixture (vpt/cem) has demonstrated favorable treatment...

introduction : this in vitro study was designed to evaluate the effect of smear layer removal on push-out bond strength of white mineral trioxide aggregate (wmta) and calcium-enriched mixture cement (cem). materials and methods: dentin discs with 3 mm thicknesses were divided into 4 groups ( n =15): group 1: irrigation of the canal with normal saline and filling with wmta; group 2: irrigation w...