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  2. Transcatheter aortic valve replacement - Wikipedia

    en.wikipedia.org/wiki/Transcatheter_aortic_valve...

    Transcatheter aortic valve replacement (TAVR) is the implantation of the aortic valve of the heart through the blood vessels without actual removal of the native valve (as opposed to the aortic valve replacement by open heart surgery, surgical aortic valve replacement, AVR).

  3. Tissue engineering of heart valves - Wikipedia

    en.wikipedia.org/wiki/Tissue_engineering_of...

    One animal trial combined the transcatheter aortic valve replacement (TAVR) procedure with tissue engineered heart valves (TEHVs). A TAVR stent integrated with human cell-derived extracellular matrix was implanted and examined in sheep, in which the valve upheld structural integrity and cell infiltration, allowing the potential clinical ...

  4. Aortic valve replacement - Wikipedia

    en.wikipedia.org/wiki/Aortic_valve_replacement

    Aortic valve replacement is a cardiac surgery procedure whereby a failing aortic valve is replaced with an artificial heart valve.The aortic valve may need to be replaced because of aortic regurgitation (back flow), or if the valve is narrowed by stenosis.

  5. Geotechnical investigation - Wikipedia

    en.wikipedia.org/wiki/Geotechnical_investigation

    A USBR soil scientist advances a Giddings Probe direct push soil sampler.. Geotechnical investigations are performed by geotechnical engineers or engineering geologists to obtain information on the physical properties of soil earthworks and foundations for proposed structures and for repair of distress to earthworks and structures caused by subsurface conditions; this type of investigation is ...

  6. Grounding resistance tester - Wikipedia

    en.wikipedia.org/wiki/Grounding_resistance_tester

    The first soil resistance measuring instrument was invented in the 1950s by Evershed & Vignoles Meggers who made the first insulation and earth resistance testers. [2] One of the most used analog grounding testers in USSR were М416. [3] From the 21st century several companies produced digital earth resistance meters and testers.

  7. I'm a Trainer & Give These 10 Strength Training Tips to All ...

    www.aol.com/im-trainer-10-strength-training...

    A trainer outlines his best strength training tips for men over 40 to maximize workout results and stay strong, capable, and healthy.

  8. Soil liquefaction - Wikipedia

    en.wikipedia.org/wiki/Soil_liquefaction

    Soil liquefaction occurs when a cohesionless saturated or partially saturated soil substantially loses strength and stiffness in response to an applied stress such as shaking during an earthquake or other sudden change in stress condition, in which material that is ordinarily a solid behaves like a liquid.

  9. NFL Winners and Losers: If NFL cares about player safety ...

    www.aol.com/sports/nfl-winners-losers-nfl-cares...

    It was the type of hit the NFL has been trying to remove from the game for years. Daryl Johnston, the former Dallas Cowboys fullback and longtime Fox analyst, said the hit showed disrespect for a ...

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