Emphasis on milk yield (MY) as well as milk yield persistency (MYP) and calving interval (CI) is necessary to achieve more sustainable productionin dairy cattle. Therefore the main objective of this study was to find an optimum regression model to estimate economic values for MY, MYP and CI.Using a deterministic bio-economic model, seventyfiveproduction states differing mainly in MY, MYPand CIw...

Abstract Although shipping is the most energy efficient method of transporting trade goods it held accountable for 2–3% global greenhouse gas (GHG) emissions. The industry exploring pathways to carbon–neutral fuels help eliminate GHG emissions by 2050. To date research on alternative has not considered public opinion; remains unclear whether will support fuels, or opposition might prevent defer...

“In actual, physical life I can turn as simply and swiftly as anyone. But mentally, with my eyes closed and my body immobile, I am unable to switch from one direction to the other. Some swivel cell in my brain does not work. I can cheat, of course, by setting aside the mental snapshot of one vista and leisurely selecting the opposite view for my walk back to my starting point. But if I do not c...

In the winter of 2002, I relocated my family from our small ranch in the southeast corner of Wyoming to the south Denver suburbs. For my hobby, it was a difficult relocation as I had to give up my antenna farm made of numerous towers, antennas and, in particular, my 4 square arrays for 40 and 80 meters. These arrays were used primarily for my own science studies regarding short and long path DX...