familiarity with the normal and abnormal anatomy of the root canal system is essential for successful root canal treatment. the possibility of concomitant three-rooted and three- canalled maxillary and mandibular premolars are extremely rare. the purpose of this paper was to report a case with a three-rooted maxillary first premolar and two three-rooted mandibular premolars.

Working Papers are produced in order to bring the results of research in progress to a wider audience and to facilitate discussion. They will normally be published in a revised form subsequently and the agreement of the authors should be obtained before referring to its contents in other published works. Abstract In this paper we explore the factors which determine the profile of innovation by ...

PURPOSE To develop and validate an intermittent match-fitness test for water-polo players. METHODS Eight male junior players performed the Water Polo Intermittent Shuttle Test (WIST) twice to assess test reliability. To assess test sensitivity and validity, 104 male and female players from different competition standards and playing positions were tested. Eighteen players performed the WIST 5...

due to its domestic problems, russia failed to pay significant attention to central asia and the caucasus after the collapse of the soviet :union:. this resulted in a geopolitical vacuum in the region followed by extensive activities done by regional actors including iran, turkey, pakistan and israel as well as world players such as nato. defining central asia and the caucasus as 'near abr...

The aim of our study was to determine the differences in some anthropometric and physical performance variables of young Croatian female volleyball players (aged 13 to 15) in relation to playing position (i.e., independent variable) and performance level within each position (i.e., independent variable). Players were categorized according to playing position (i.e., role) as middle blockers (n=2...

Effectively managing training intensity is important to optimize the health and performance of elite athletes. However, limited research has been conducted on relationship between wellness status in young football players. This study included 123 players 8 coaches from Malta Football Regional Centers (MFRH) U12/13 U14 groups. Participation was based voluntary basis each age group underwent two ...

This paper mainly studies the problems related to evaluation of high slope intelligent area under rainfall conditions and, through unified design method, saturation unsaturation theory, marginal equilibrium neural network and GIS, based on Fengjie area, low stability in area. provides a positive research practice way for GIS intelligence is establishing an regional system platform. As goal cond...

The US Global Positioning System (GPS) and the USSR (and later Russian) system Glonass have existed for decades. Europe is developing Galileo and China launched Beidou which was the first Regional Navigation Satellite System (RNSS) and then announced Compass, a Global Navigation Satellite System (GNSS). Japan is planning its own regional augmentation to GPS and Galileo known as the Quasi-Zenith...