Nitrogen losses during composting processes lead to emissions problems and reduce the compost fertilizer value. Gas-permeable membranes (GPM) are a promising approach address challenge of reducing nitrogen in processes. This study investigated applicability two GPM membrane systems recover N released closed process laying hen manure. The ammonia (NH3) capture was performed using different over ...

Methods A 66-year-old man was admitted to our hospital on November 11, 2012. He had a painful, pulseless, and cold below-knee in right lower extremity. He had previous right cross-over composite sequential femoropopliteal bypass. Angiography showed acute occlusion of cross-over composite femoro-popliteal bypass graft and stent graft used in treatment of pseudoaneurysm developing in popliteal an...

The Food and Drug Administration (FDA) is announcing that it has issued an order in the form of a letter to W.L. Gore and Associates, Inc., reclassifying the nonabsorbable expanded polytetrafluoroethylene (ePTFE) surgical suture intended for use in soft tissue approximation and ligation, including cardiovascular surgery, from class III (premarket approval) to class II (special controls). Accord...