1 Fellow of Pediatric Gastroenterology, Children’s Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran 2 Assistant Professor, Pediatric Unit of Digestive Disease Research Center, Children’s Medical Center Hospital, Tehran University of Medical Sciences, Tehran, Iran 3 Associate Professor, Pediatric Unit of Digestive Disease Research Center, Children’s Medical Center Hos...

Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran, Noor Ophthalmology Research Center, Noor Eye Hospital, Tehran, Iran, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran, Department of Public Health, Shahroud University of Medical Sciences, Shahroud, Iran, Education Development Center, Tehran Univers...

1School of Traditional Medicine, Tehran University of Medical Sciences, Tehran, IR Iran 2Persian Medicine and Pharmacy Research Center, School of Traditional Medicine, Tehran University of Medical Sciences, Tehran, IR Iran 3Clinical Biochemistry, Biochemistry Department, School of Medicine, Tehran University of Medical Sciences, Tehran, IR Iran 4School of Pharmacy Shahid Beheshti University of ...

Even though SQL has become widely accepted as a language for implementing relational database schemas and querying data, there are cases where its users experience the need for new language abstractions which would allow them to express data modeling and querying solutions in a clearer and simpler manner. This paper describes the idea of language extensions to SQL:1999 that come in form of inde...

Knowledge sharing behavior in virtual communities has long been an important area of research. Prior related research has primarily focused on relational virtual community (RVC) where knowledge sharing is regarded as a social exchange behavior, heavily depending on the social concerns such as reciprocity, identification and norms. The objective of our study is to investigate knowledge contribut...

1. Dept. of Iranian Traditional Medicine, School of Traditional Medicine, Tehran University of Medical Sciences, Tehran, Iran 2. Dept. of Physiotherapy, La Trobe University, Bundoora, Victoria, Australia 3. School of Nursing and Midwifery, Tehran University of Medical Sciences, Tehran, Iran 4. Dept. of Rheumatology, Vali-asr Hospital, Imam Khomeini Hospital Complex, Tehran University of Medical...

1. International Campus, Tehran University of Medical Sciences, Tehran, Iran 2. Dept. of Epidemiology and Biostatistics, School of Public Health Tehran University of Medical Science, Tehran, Iran 3. Dept. of Disaster Public Health, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran 4. National Institute of Health Research, Tehran University of Medical Sciences, Tehran,...

It is shown that at muon colliders with the energy in the region of 100 TeV the process of coherent pair creation by the muon in the field of the opposing beam becomes important and imposes some limitations on collider parameters. One of the main advantages of muon colliders is that the muon is much heavier than the electron and therefore the radiation (beamstrahlung) in beam collisions is supp...