Introduction. Intravitreal drug injections and implants are generally safe but do carry some risk, from both the procedure itself and adverse effects of the medications. We report a case of an eccentric macular hole after dexamethasone implant (Ozurdex®) administration. Ex vitro force testing was performed to evaluate dexamethasone implant injection force. Methods. Five dexamethasone implant (O...

We studied adjustments of digit forces to changes in the friction. The subjects held a handle statically in a three-digit grasp. The friction under each digit was either high or low, resulting in eight three-element friction sets (such grasps were coined the grasps with complex friction pattern). The total load was also manipulated. It was found that digit forces were adjusted not only to the s...

The immune system is a complex multiscale multiphysical object. Understanding its functioning in the frame of systemic analysis implies use mathematical modelling, formulation data consistency criterion, estimation parameters, uncertainty analysis, and optimal model selection. In this work, we present some promising approaches to modelling multi-physics processes, i.e., cell migration lymph nod...

The symbiotic ant partners of glaucous Macaranga ant-plants show an exceptional capacity to run on the slippery epicuticular wax crystals covering the plant stem without any difficulty. We test the hypothesis that these specialised 'wax-runners' have a general, superior attachment capacity. We compared attachment on a smooth surface for 11 ant species with different wax-running capacities. The ...

Cricoid pressure to occlude the upper end of the oesophagus, also called the Sellick manoeuvre, may be used to decrease the risk of pulmonary aspiration of gastric contents during intubation for rapid induction of anaesthesia. Effective and safe use of the technique requires training and experience. Cricoid pressure is contraindicated in patients with suspected cricotracheal injury, active vomi...

BACKGROUND Despite that a mid-third simple transverse femoral shaft fracture has been traditionally treated with an unlocked reamed intramedullary nail, recently a static locked reamed intramedullary nail has been favored by some orthopedists to avoid missing extended fracture lines. A prospective comparison of both nails was conducted to investigate the superiority between the nails from biome...

Background. Quantitative ultrasound measures are influenced by multiple external factors including examiner scanning force. Force feedback may foster the acquisition of reliable morphometry measures under a variety of scanning conditions. The purpose of this study was to determine the reliability of force-feedback image acquisition and morphometry over a range of examiner-generated forces using...