It is a striking fact that differential calculus exists not only in analysis (based on the real numbers R), but also in algebraic geometry, where no limit processes are available. In algebraic geometry, one rather uses the idea of nilpotent elements in the “affine line” R; they act as infinitesimals. (Recall that an element x in a ring R is called nilpotent if xk = 0 for suitable non-negative i...

AIM The aim of this study is to evaluate the dimensional accuracy of heat polymerized acrylic resin denture base clamped by the conventional method and by new-press technique and cured by long curing cycle. MATERIALS AND METHODS In this study, a total of 60 standardized maxillary record bases were fabricated with seven reference points as follows: Point A: Incisive papilla, Point B and C: Can...

Centralization of vowel formants has been associated with reduced intelligibility in healthy speakers and those with motor speech disorders [1-3]. Hence, estimations of speakers’ vowel space area (VSA) provide a promising avenue for assessing speech motor control. However, VSA measurements have traditionally demonstrated limited success in distinguishing healthy and disordered speech [1, 3]. On...

BACKGROUND AND OBJECTIVES The precise location of the adductor canal remains controversial among anesthesiologists. In numerous studies of the analgesic effect of the so-called adductor canal block for total knee arthroplasty, the needle insertion point has been the midpoint of the thigh, determined as the midpoint between the anterior superior iliac spine and base of patella. "Adductor canal b...