This note is a complement to Pusz–Woronowicz’s works on functional calculus for two positive forms from the viewpoint of operator theory. Based an elementary, self-contained and purely Hilbert space explanation their calculus, we show that any connection type operations (including perspectives) are captured by calculus.

This paper extends an arbitrary action calculus [11] to higher order, in a way which parallels the extension of the -calculus [13] to higher order by Sangiorgi [18]. Action calculi are a subclass of action structures [10], which in turn are an enriched class of monoidal categories. Each action calculus AC(K) is distinguished by its set K of controls and their reaction rules. The notion of actio...

Urolithiasis is one of the most common diseases seen by urologists. In 28% patients with kidney stones, disease symptomatic. The benefits ureteral stone extraction include minimal invasiveness, a shorter postoperative recovery time, and favourable safety profile. Aim: to compare evaluate relationship between density ureter, calculus, its localization value creatinine level predicting success ur...

Introduction: Extracorporeal shock wave lithotripsy (ESWL) and ureteroscopy (URS) are effective treatments in the management of ureteric calculus. ESWL is noninvasive, associated with less morbidity than URS. Moreover, URS requires specialized training, requires more anesthesia, and more often requires ureteral stent placement. We have analyzed the efficacy of ESWL in the management of lower ur...

Urinary calculus is a common disease. Potassium citrate is usually used to prevent lithangiuria. Urinary calculus formation is affected by sex hormone. This study investigated the preventive and therapeutic effect of potassium citrate combined estradiol on lithangiuria. SD rats were randomly divided into three groups, control group, model group established by administration of 3% melamine (Mel)...

Learning mathematics is a major focus of educational institutions at all levels and technology has long been an important teaching tool in the field of mathematics. The new technological tools such as computers and computer software have provided educators and students with more opportunities to teach and to learn mathematics in new ways. The used of multimedia interactive courseware with its a...

Identification of chemical constituents of calculus is important in the diagnosis and management of urolithiasis. The compositional variability of uroliths has different etiologies and requires various modes of treatment and prophylaxis. In the present study, we report the chemical compositional analyses of calculi recovered from buck and bullock by X-ray diffraction (XRD) and energy dispersive...

This entry explores the innovative use of lasers in non-surgical treatment periodontitis, shedding light on advantages, effectiveness, and limitations this approach. There has been a massive eruption innovations technologies to assist periodontal diseases over past 30 years. The opened new horizons possibilities that can enhance treatments. However, their is not always based validated concepts ...

This study investigated the effect of multiple representations approaches on students’ representation interpretation in learning calculus. Pretest and posttest quasi-experimental design non-equivalent groups was used. Three intact size 53, 57, 54 students from Jigjiga Kebri-Dehar Universities Ethiopia participated this study. The included a GeoGebra-supported approach (MRT) University, (MR), co...