This work presents an investigation on Improved Extended Kalman Filter (IEKF) performance for induction motor drive without a speed sensor. The of direct sensorless vector-controlled system through simulation and experimental is tested. proposed observer focuses estimating rotor flux mechanical from the stationary axis components. Filters' estimation depends matrix's proper value ( Q) measureme...

OBJECTIVE To compare antimüllerian hormone (AMH) and antral follicle count (AFC) as predictors of ovarian response to controlled ovarian stimulation at individual fertility clinics. DESIGN Retrospective analysis of individual study center data in two multicenter trials. Centers that provided >10 patients were included in the analysis. SETTING A total of 19 (n = 519 patients) and 18 study ce...

Thanks to an impressive R&D effort, three vaccines for Covid-19 have been conditionally approved by stringent regulators as of February 2021, and sixteen entered the WHO evaluation process. However, they all need keep on being evaluated in clinical trials. The Ad Hoc Expert Group Next Steps Vaccine suggested that countries with limited or no access effective vaccine could ethically permit p...

comes in men with obstructive sleep apnoea–hypopnoea with or without treatment with continuous positive airway pressure: an observational study. Lancet 2005;365:1046–1053. 13. Mansfield DR, Gollogly NC, Kaye DM, Richardson M, Bergin P, Naughton MT. Controlled trial of continuous positive airway pressure in obstructive sleep apnea and heart failure. Am J Respir Crit Care Med 2004;169:361–366. 14...

Responding to an article by R. Burkhardt and G. Kienle in the same issue of the Journal of Medical Ethics, Vere strongly disputes their criticisms of the controlled clinical trial. He maintains that the proper use of the statistical method in a randomized trial provides the 'best, most precise, and most conservative way' for a medical researcher to decide among alternative therapies, and that ...

BACKGROUND Evaluating the long term benefit of therapy in multiple sclerosis (MS) is challenging. Although randomised controlled trials (RCTs) demonstrate therapeutic benefits on short term outcomes, the relationship between these outcomes and late disability is not established. METHODS In a patient cohort from the pivotal interferon β-1b trial, the value of clinical and MRI measures were ana...

700 Emerging Infectious Diseases • www.cdc.gov/eid • Vol. 12, No. 4, April 2006 9. Monath TP, Caldwell JR, Mundt W, Fusco J, Johnson CS, Buller M, et al. ACAM2000 clonal Vero cell culture vaccinia virus (New York City Board of Health strain): a second-generation smallpox vaccine for biological defense. Int J Infect Dis. 2004;8S2: S31–44. 10. Graham BS, Belshe RB, Clements ML, Dolin R, Corey L, ...

BACKGROUND Osteoarthritis of the first metatarsophalangeal joint (MPJ) of the foot, termed hallux limitus, is common and painful. Numerous non-surgical interventions have been proposed for this disorder, however there is limited evidence for their efficacy. Intra-articular injections of hyaluronan have shown beneficial effects in case-series and clinical trials for the treatment of osteoarthrit...