Spatial cognition in vertebrates is adversely affected by a lack of environmental complexity during early life.However, to our knowledge no previous studies have tested the effect of early exposure to varying degrees of environmental complexity on specific components of spatial cognition in chickens.There are two main rearing systems for laying hen
Freeze-Dried Spatial competition plays important roles in economics, which attracts extensive research.This paper addresses spatial competitions along with horizontal product differentiations and entry deterrence.By the dynamic game theory model about one firm and a potential entrant with different cost in a linear city, this paper finds that both
The instability of environmental and economic situations requires forestry companies to be more thoroughly analytical in their management decisions.They also generate additional information needs for companies.The purpose of the paper was to analyze the financial and economic activity of forestry enterprises in the conditions of economic and enviro
Introduction: Major laparotomies generally herald high pain scores postoperatively and have high intraoperative hemodynamic shifts.Traditional analgesic regimens with intravenous opioids were supplanted with the superior epidural analgesia (EA) in the mid-1980s.This was based on the perception that EA provided highly effective postoperative analges