An American option is a derivative security that can be exercised at any time before expiration.Under standard hypotheses it can be shown that its arbitrage-free price is the solution of an optimal stopping problem.Usually, if the underlying asset follows a diffusion, 3 Piece Sectional with Chaise the stopping time problem does not have a closed fo
AC-DC electric locomotive generally used feedback-resistor braking mode, which took energy from traction power network to Lingerie ensure the cooling fan working, resulting in great resources waste and environmental pollution.So, a kind of energy feedback solution applied to the braking Skateboards mode of AC-DC electric locomotive was presented.Pr
Although previous research has identified that consumers are willing to pay for traceability, it remains unknown which types of traceability information might have the highest value, and whether consumers have an intrinsic value for blockchain technology above and beyond the instrumental value of providing traceability.A choice experiment was condu
INTRODUCTION.Forced migration is one of the most difficult global problems.There is a clear interdependence between the problem of refugees and the issue of human rights, since human rights violations are one of the main reasons for the mass copyright of people from their countries of origin.It is also clear that counties that provide asylum have a
Adenoid cystic carcinoma (ACC) is a rare neoplasm that usually arises from minor salivary glands.It is characteristically locally infiltrative, exhibiting perineural invasion, has a tendency for local recurrence and prolonged clinical course.A 60 year old male, chronic smoker presented with swelling of the left cervical lymph node since two months.