Results 11 to 20 of about 94,545 (265)

Bonding and fractographic characterization of universal adhesives applied to dentin in multimode strategies: an in vitro study [PDF]

open access: yesRestorative Dentistry & Endodontics
Objectives Universal adhesives (UAs) are marketed as versatile systems for both self-etch (SE) and total-etch (TE) modes. While their bond strength has been widely investigated, evidence linking fracture characteristics to bonding performance remains ...
Samaa M. Morsy   +5 more
doaj   +1 more source

Low-Risk Foot and Ankle Stress Fractures in The Pediatric Population: A Case Series

open access: yesOrthopaedic Journal of Sports Medicine, 2022
Background: Stress fractures are a common overuse injury in the pediatric population. Distal fibular and calcaneal stress fractures are considered low-risk stress fractures.
Matthew Gremillion BS   +3 more
doaj   +1 more source

Tarsal navicular stress fracture in a female gymnast

open access: yesLiječnički vjesnik, 2023
Stress fractures should be considered in any athlete presenting with the insidious onset of pain, especially in the setting of a sudden change in activity or training level. Tarsal navi-cular stress fractures are high-risk stress fractures typically seen
Branimir Šušak   +4 more
doaj   +1 more source

Laws of multi-fracture coupling initiation during blasting induced hydraulic fracturing

open access: yesNatural Gas Industry B, 2019
For figuring out the stress interference of multiphase fracture combinations and its effect on the fracture initiation pressure of subsequent hydraulic fracturing, a calculation model for the coupled stress field with multiple induced fractures ...
Feipeng Wu   +5 more
doaj   +1 more source

Stress background and rock fractures revealed by ultrasonic borehole television in the Fankou Lead-Zinc Mine

open access: yesFrontiers in Earth Science, 2023
The stress background and rock fractures are essential factors affecting the stability of mines. In order to better understand the in situ stress background and rock fractures in the Guangdong Fankou Mine, we use ultrasonic borehole television scanning ...
Yi Du   +7 more
doaj   +1 more source

Stress fractures

open access: yesActa Orthopaedica et Traumatologica Turcica, 2021
Stress fractures, resulting from phyical exercise have been recognized since l855 when Breithaup: documented foot pain and swelling in a gruoupol Porussıan soldeiers foot. This chaacteristically occurs in a normal bone that is subjected to repeated cylic
Mehmet Altinmakas
doaj  

Case report: A rare Salter–Harris V metaphyseal fatigue fracture of the knee in an adolescent patient with obesity

open access: yesFrontiers in Pediatrics, 2023
Stress fractures are rare, occurring in 1.5/100,000 high school athletes. High impact, repetitive loading participation in woman's sports, and being a white athlete have been identified as risk factors for stress fractures. Mostly treated conservatively,
Chao Gao   +4 more
doaj   +1 more source

Research on the propagation mechanism of hydraulic fractures in infill horizontal wells

open access: yesFrontiers in Earth Science, 2022
In recent years, infill horizontal well technology has been used to develop oil and gas in the remaining oil areas of unconventional low-permeability reservoirs. However, the initial fractures in parent wells will affect the hydraulic fractures formed by
Erhu Liu   +5 more
doaj   +1 more source

Bilateral Proximal Tibia Stress Fractures through Persistent Physes

open access: yesCase Reports in Orthopedics, 2018
Introduction. Fatigue fractures are stress fractures resulting from repetitive trauma in areas of stress concentration. Prior case reports and studies have described stress fractures through persistent physes about the olecranon and distal fibula, as ...
John J. Carroll   +4 more
doaj   +1 more source

Seepage Behavior of Fractures in Paleogene Sandstone Reservoirs in Nanpu Sag, Bohai Bay Basin, Eastern China

open access: yesFrontiers in Earth Science, 2021
Natural fractures play an important role in the seepage system of Paleogene sandstone reservoirs at Nanpu Sag. Characteristics and formation mechanisms of natural fractures and stress-sensitivity permeability are comprehensively investigated and their ...
Zhaosheng Wang   +8 more
doaj   +1 more source

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