objective: the main objective of this research was the economic valuation of public library services using the contingent valuation. although, estimating the average willingness to pay for public library service, demographics on the willingness to pay, and economic valuation and pricing public library services were other objectives that investigated in this study. methodology: explanatory varia...

1Endocrine and Metabolism Research Centre, Doctor Shariati Hospital, Tehran University, Tehran, Islamic Republic of Iran. 2Health Research and Education Unit, Healthcare Organization, National Iranian Oil Corporation, Tehran, Islamic Republic of Iran. Received: 30/07/02; accepted: 27/03/03 ABSTRACT To estimate the direct cost of coronary heart disease (CHD) to the Iranian oil industry, we calcu...

AIM Present study calculates and analyzes Cost of illness of tuberculosis in Tehran. PATIENTS AND METHODS This study was a descriptive analytical study conducted among 121 patients in two stages in 2011. In the first stage, questionnaires were collected by reviewing patient records and phone interviews with patients. The second stage deals with the calculation of costs. For cost calculation, ...

in the present health care environment, cost-benefit analysis is extremely important. in this screening program, the minimal cost of screening dipstick urinalysis in 1601 asymptomatic school children was determined. the process of screening was similar to all the studies. the minimal cost utilizing 3 general physicians was calculated. costs were determined by using current charge for supplies o...

BACKGROUND Helicobacter pylori may cause many gastrointestinal problems in developing countries such as Iran. We aimed to analyze the cost- effectiveness and cost- utility of the test-and-treat and empirical treatment strategies in managing Helicobacter pylori infection. METHODS This was a Markov based economic evaluation. Effectiveness was defined as the symptoms free numbers and QALYs in 10...

Let p be a prime congruent to 1 modulo 4, and let t, u be rational integers such that (t + u √ p )/2 is the fundamental unit of the real quadratic field Q(√p ). The Ankeny-Artin-Chowla conjecture (AAC conjecture) asserts that p will not divide u. This is equivalent to the assertion that p will not divide B(p−1)/2, where Bn denotes the nth Bernoulli number. Although first published in 1952, this...

The incremental elimination or hydroxy functionality in an organosolv lignin by ethylalion or acetylation dramatically innuenced the state of miscibility and resulting morphology or blends prepared with hydroxypropyl cellulose (HPC). A maximum level of interaction between the blend components, as determined from melting point depression, oa:.urred where 23-40-1. or the hydroxy groups were subst...