Lateral talar process fragment excision may be followed by hindfoot instability and altered biomechanics. There is controversy regarding the ideal fragment size for internal fixation versus excision and a concern that excision of a large fragment may lead to significant instability. The aim of this study was to assess the effect of a simulated large lateral talar process excision on ankle and s...

In this study we evaluated by telemetry the effects of ANG II and ANG-(1-7) infusion on the circadian rhythms of blood pressure (BP) and heart rate (HR) and on the cardiovascular adjustment resulting from restraint stress in rats. ANG II or ANG-(1-7) or vehicle were infused subcutaneously for 7 days. Restraint stress was carried out before, during, and after infusion at 7-day intervals. Paralle...

Stress cardiomyopathy—apical ballooning, tako-tsubo syndrome, or transient apical dyskinesia—is an intriguing condition of unknown etiology. It typically affects older women who, after an event causing physical or emotional stress, present chest pain and ST elevation on the anterior aspect of the ECG (although it may also show T-wave inversion, depressed ST, or normal findings). At presentation...

[1] The complex geometry of faults, seismicity, and diversity of earthquake mechanisms suggest that the stress and strength in Earth’s crust are spatially heterogeneous. We investigated the degree of heterogeneity using the following two end-member models. In one end-member model, we assumed that the orientation of stress is uniform in the crust as is assumed in many stress inversion studies. I...

The stress-tenogram is a radiological technique for the investigation of injuries to the lateral ligament of the ankle, and combines the information previously provided by inversion and anterior stress radiographs, and the peroneal tenogram. It is designed to differentiate between stable and unstable ankles, and between isolated ruptures of the anterior talofibular ligament and combined tears o...

Incorporating elasticity into wavefield extrapolation methods includes pitfalls that have no parallel in acoustic scenarios. First, coupled effects among the multiple elastic wave modes (which become three in the presence of anisotropy) often result in crosstalk contamination of the inverted reflectivity and earth model parameters. Second, conventional acquisition does not capture the full wave...

The in situ stress distribution is one of the driving factors for design and construction underground engineering. Numerical analysis methods based on artificial neural networks are most common effective inversion. However, conventional algorithms often have some drawbacks, such as slow convergence, overfitting, local minimum problem, which will directly affect inversion results. An intelligent...

Approximate higher order polynomial inversion of the top-hat filter is developed with which the turbulent stress tensor in Large-Eddy Simulation can be consistently represented using the filtered field. Generalized (mixed) similarity models are proposed which improved the agreement with the kinetic energy transfer to small scales. These similarity models are analyzed for random periodic signals...

One of the most remarkable basis of the gravity data inversion is the recognition of sharp boundaries between an ore body and its host rocks during the interpretation step. Therefore, in this work, it is attempted to develop an inversion approach to determine a 3D density distribution that produces a given gravity anomaly. The subsurface model consists of a 3D rectangular prisms of known sizes ...

CONTEXT Lateral ankle sprains can manifest into chronic mechanical joint laxity when not treated effectively. Joint laxity is often measured through the use of manual stress tests, stress radiography, and instrumented ankle arthrometers. PURPOSE To systematically review the literature to establish the influence of chronic ankle instability (CAI) on sagittal and frontal plane mechanical joint ...