Results 61 to 70 of about 1,797,053 (297)
Use of depot medroxyprogesterone acetate and fracture risk [PDF]
, 2010 Depot medroxyprogesterone acetate (DMPA), which has a high rate of use among teenagers in Europe and the United States, has been associated with impaired bone mineral acquisition during adolescence and accelerated bone loss in later life.
Kraenzlin, Marius E. +14 more
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Arthritis Care &Research, EarlyView.Objective Hospitalization, particularly for surgery, represents a period of heightened stress. We evaluated how frailty attenuates the association of rheumatoid arthritis (RA) with negative health outcomes after elective noncardiac surgery. Methods We conducted a cross‐sectional study using the National Inpatient Sample (2018 to 2020), including adults
Ali Yazdanyar +5 more
wiley +1 more source
Field emissions caused by fracture and yielding
, 2022 S.221-235Two effects, magnetic and electric emission, have been observed and used in fracture tests to detect and analyse onset and progress of plastic deformation and fracture.
Winkler, S.R.
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Observer‐Based Adaptive Event‐Triggered Tracking Control for Fuzzy TS Systems With Premise Mismatch
International Journal of Adaptive Control and Signal Processing, EarlyView.This paper presents an adaptive logistic event‐triggered observer‐based tracking controller for Takagi‐Sugeno fuzzy systems under constrained inputs and network delays. Leveraging a hybrid LMI and Secretary Bird Optimization approach, this strategy significantly minimizes communication overhead and computational burden while ensuring optimal reference ...
Oussama Djadane +3 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt +8 more
wiley +1 more source
Performance of progressive and constant tapered instruments rotary systems at canal preparation
RGO: Revista Gaúcha de Odontologia, 2018 Objective: The aim of this study was to compare the performance of two nickel-titanium rotary systems regarding the preparation time, final shape of canal, incidence of aberration, transportation, and fracture of instrument.
Bruna GENARI +5 more
doaj +1 more source
Instrument fracture: mechanisms, removal of fragments, and clinical outcomes
, 2007 Instrument fracture can be an unpleasant mishap during non-surgical root canal treatment. While most stainless-steel instruments appear to fail by excessive amounts of torque, the combined action of torsional stress and cyclic loading (i.e. fatigue, as a
Cheung, GSP, GARY S.P. CHEUNG
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Advanced Engineering Materials, EarlyView.Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar +2 more
wiley +1 more source
Restorative Dentistry & Endodontics, 2013 During root canal preparation procedures, the potential for instrument breakage is always present. When instrument breakage occurs, it leads to anxiety of the clinician and as well as a metallic obstruction of the canal which hinders further cleaning and
Syed Mukhtar-Un-Nisar Andrabi +3 more
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Energy Science & Engineering, 2021 The deformation and fracture of surrounding rock in deep underground engineering have the characteristics of time mutation and space continuity. In order to monitor and provide early warning of the dynamic deformation and fracture characteristics of deep
Rui Zhou +3 more
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