This study was made to clarify the retentive force of a denture retainer, i.e., a cone-type stud and sleeve attachment. In order to measure the wearing effect, an engaging and disengaging cycle test of 1,000 times was performed. The effects of taper angle (cone angle), sleeve height and thrusting force at engaging stud and sleeve on retentive force were also analyzed. 1. The cycle test had litt...

BACKGROUND Although acupuncture manipulation has been regarded as one of the important factors in clinical outcome, it has been difficult to train novice students to become skillful experts due to a lack of adequate educational program and tools. OBJECTIVES In the present study, we investigated whether newly developed phantom acupoint tools would be useful to practice-naïve acupuncture studen...

OBJECTIVE To assess the safety and efficacy of a recruitment maneuver, the Open Lung Tool, in pediatric patients with acute lung injury and acute respiratory distress syndrome. DESIGN Prospective cohort study using a repeated-measures design. SETTING Pediatric intensive care unit at an urban tertiary children's hospital. PATIENTS Twenty-one ventilated pediatric patients with acute lung in...

Animals show impulsiveness when they prefer a smaller more immediate option, even though a larger more delayed option produces a higher intake rate. This impulsive behavior has implications for several behavioral problems including social cooperation. This paper presents two experiments using captive blue jays (Cyanocitta cristata) that consider the effects of payoff accumulation and temporal c...

In 1981 Bibby and Preston commented on the uniqueness of the anatomic relationships of the hyoid bone, notably that it was not fixed in space by bony articulations. This fact alone makes it a potential indicator of certain individual features of importance in orthodontic diagnosis and treatment. This study investigates the effect of mouth breathing and tongue-thrusting on the hyoid bone positio...

This paper studied the maneuverability of the pure electric propulsion all-direction vector thrusting ship called “Century myth”, which also is the first one of its kind in inland rivers in China. Abilities such as turning, stop, changing of course and course keeping are studied. The main research method is by test and comparison, the result shows that the maneuverability of this kind of ship i...

Fractional differential equations have been of great interest recently. This is because of both the intensive development of the theory of fractional calculus itself and the applications of such constructions in various scientific fields such as physics, mechanics, chemistry, engineering, etc. Differential equations with impulsive effects arising from the real world describe the dyn...

UNLABELLED Benign Paroxysmal Positional Vertigo (BPPV) is a frequent cause of dizziness and despite of the excellent results with its treatment, there is some controversy about management. AIM To assess the efficacy of Epley Maneuver with and without post-maneuver restrictions. STUDY DESIGN Prospective randomized. MATERIAL AND METHOD Fifty patients presenting BPPV of the posterior semicir...