This study aimed to evaluate the performance of the unified high-rate anaerobic digestion (UHAD) system treating co-substrate of sewage sludge and food waste. A 24-hr operating sequence consisted of four steps including fill, react, settle, and draw. The effects of co-substrate and organic loading rate (OLR) on the performance were investigated to verify the system applicability. In each OLR, t...

D IGESTION experiments with cattle fed simplified rations produced results in this laboratory indicating that efficiency of roughage dry matter digestion was dependent upon the presence or absence of certain ration nutrients or feed components needed by rumen microorganisms. The nutrients or feed components which favorably influenced roughage digestion in cattle experiments were protein (N X6.~...

Cell death occurs by apoptosis during programmed deletion of cells and following exposure to cytotoxic agents. Central to the mechanism of apoptosis is internucleosomal DNA digestion by an endogenous endonuclease which is thought to mediate cell death. An axiom of apoptosis is that the endonuclease involved is a Ca2+/Mg(2+)-dependent endonuclease. During purification of endonucleases from Chine...

To investigate the potential limiting steps of peak metabolic rates, we examined gas exchange rates ( vdot (O2), vdot (CO2)), respiratory exchange ratio (RER), breathing frequency, tidal volume, minute ventilation volume (V.e) as well as the heart rate, systemic blood flow and stroke volume of Burmese pythons (Python molurus) while fasting at rest, exercising, digesting and exercising while dig...

Full-scale anaerobic digestion of pig manure often resulted in liquid effluents with considerably high organic matter, ammonia and phosphates content. If not enough agricultural land is available, the disposal of this effluent requires additional treatment. Different process scheme for reduction of the organic matter and nutrients from thermofilically digested pig manure were tested in full-sca...

Enhanced green fluorescent protein (EGFP) was fused with staphylococcal protein A (SpA) and used as a substrate for proteases. An SpA-EGFP assay was done in three steps: (i) digestion of SpA-EGFP by proteases, (ii) addition of rabbit IgG immobilized on Sepharose beads, and (iii) measurement of the fluorescence intensity of supernatant. The assay was sensitive enough to measure picogram levels o...