In this paper we study algorithms for pricing of financial contracts using a lattice process of interest rates. If the cash-flows generated by the contract depend on the history of the interest rates (path dependent contracts), then the pricing algorithms are typically of exponential complexity. We demonstrate that for some models, there exist polynomial algorithms for path dependent contracts....

Individual substances are the ground of Aristotle’s ontology. Taking a liberal approach to existence, Aristotle accepts among existents entities in such categories other than substance as quality, quantity and relation; and, within each category, individuals and universals. As I will argue, individual substances are ontologically independent from all these other entities, while all other entiti...

We formulate a procedure to obtain gauge-invariant tunneling rate at zero temperature using the recently developed potential approach. This relies on consistent power counting in gauge coupling and derivative expansion. The approach, while numerically more efficient than standard bounce solution method, inherits gauge-dependence of latter when naively implemented. Using Abelian Higgs model, we ...

The connection of Zagreb polynomials and indices to chemical graph theory is a bifurcation mathematical chemistry, which has had crucial influence on the development sciences. Nowadays, study topological become vast effective research area in theory. In this article, we add up eight different for Silicate Network Chain Network. From these polynomials, catch degree-based indices. We also provide...

repetitive transcranial magnetic stimulation (rtms) has been used widely in various psychiatric disorders like depression and schizophrenia. there have been some reports of its usefulness in alcohol dependence and substance use disorders. the present paper reviews the studies done using rtms in substance use disorders including alcohol and nicotine dependence. various studies done have been rev...

the tutte polynomial of a graph g, t(g, x,y) is a polynomial in two variables defined for every undirected graph contains information about how the graph is connected. in this paper a simple formula for computing tutte polynomial of a benzenoid chain is presented.

Background: Many psychiatric patients have nicotine and other substance dependence. Objective: To determine the prevalence of nicotine and opium dependence among psychiatric in-patients inKerman, a city in southwesternIran. Methods: Three groups of psychiatric inpatients, chronic medical patients and a sample from local population, each including 400 subjects were selected.  Nicotine dependence...

conclusions the significant difference between groups 1 and 3 permits to establish a correlation between degree of nicotine addiction and hearing loss. however, further studies are needed to identify the mechanisms leading to hearing loss. patients and methods the study recruited smokers (100) and non-smokers as a reference group (100) aged 21 to 50 years living in noisy or quiet areas of beiru...

a recent study indicates that the incidence of smoking cessation varies with age. although nicotine dependence (nd) has been regarded as one of the most significant barriers of successful smoking cessation, few researches have focused on the relationship between nicotine dependence and age.a cross-sectional study (conducted in 2013) with 596 chinese rural male current smokers was performed to s...

objectives: dependence and tolerance are major restricting factors in the clinical use of opioid analgesics. in the present study, the effects of thymoquinone, the major constituent of nigella sativa seeds, on morphine dependence and tolerance were investigated in mice. materials and methods: male adult nmri mice were made tolerant and dependent by repeated injections of morphine (50, 50, and 7...