abstract the purpose of this study is investigating factors affect on probability of willingness to pay sugar beet farmers for taking of agricultural extension services. logit model was used for cross sectional data in 2009 between 150 sugar beet farmers that were selected by random sampling in the city of mashhad. in addition, tobit model was used to analyse factors affecting on willingness to...

Recent research has indicated that university students sometimes use caffeine pills for neuroenhancement (NE; non-medical use of psychoactive substances or technology to produce a subjective enhancement in psychological functioning and experience), especially during exam preparation. In our factorial survey experiment, we manipulated the evidence participants were given about the prevalence of ...

The premise of this paper is to promote the results from a small study which sought to evaluate the effectiveness of three different prototype mobile applications, in promoting well being by the reminiscing of positive memories. Interviews were carried out with mental health professionals, including psychotherapists and psychiatric nurses, who were questioned on their opinions as to the effecti...

This paper provides experimental and simulation tools to characterize a Photo-Voltaic (PV) panel. To achieve this objective, we start from a PV electrical model and we propose a circuit using Diode-based-equivalent PV (DBEPV) panel. This circuit is presented as a prototype of an equivalent PV panel. It is designed to emulate a real PV module in different climatic conditions (irradiance and temp...

The point of departure for this paper is the familiar prototype fisheries model where a fictitious sole owner harvests a fish population to maximize present discounted profits. The paper answers analytically the following question. “What happens to a policy when the sole owner also values biodiversity, as well as profits?” It turns out that the size of the steady-state stock and the number of s...

the purpose of this paper is to analyze the willingness of clergymen towards their participation in agriculture and natural resources extension and education programs (anreep). the population of the study consisted of all the clergymen who dialed anreep. using coronbach alpha formula along with stratified random sampling techniques a number of 260 clergymen were selected. a questionnaire, desig...