abstract in this research by using a synchronous equivalents system, the functions of supply and demand of any kind of meat and corn in fars province, iran are considered. the purpose of this study is to predict the functions of supply and the price of meat and corn, recognition and analysis of effective issued on supply and price of this sections, considering the effect of shocks and the cross...

productivity shocks are one of the most important factors that influence the firms ‘ decisions on he optimal consumption of production inputs. unobservable productivity shocks create selection and simultaneity problems causing biased estimates of production function by ordinary least squares. however, to estimate coefficients associated with production function by levinsohn and petrin technique...

in this paper, we examine influence oil shocks on macroeconomic variables and dutch disease phenomena when these variables encountered positive oil revenue shocks. statistical model which is copula approach is used to show when iran's macroeconomic variables encountered positive oil revenue casus dutch disease and oil revenue has non-symmetric influence on the growth economic. in another w...

It has been shown consistently in the literature that early life exposure to extreme weather events affects children’s nutritional status and related long-term health well-being outcomes. The effects of shocks other than rainfall, as well heterogeneous among population subgroups moderators this relationship, however, are less understood. By combining a rich three-wave representative household p...

We investigate the formation of GMCs in spiral galaxies through both agglomeration of clouds in the spiral arms, and self gravity. The simulations presented include twofluid models, which contain both cold and warm gas, although there is no heating or cooling between them. We find agglomeration is predominant when both the warm and cold components of the ISM are effectively stable to gravitatio...

Opioid neurotransmission modulates pain and negative affect during psychological stress. To determine whether these effects differ between men and women, the opioid receptor antagonist naltrexone or placebo was administered double-blind to 21 men and 22 women before they completed 30 min of difficult mental arithmetic. To heighten negative affect, participants received seven moderately noxious ...

I review what is known about the temperature of the plasma within stellar wind bubbles and superbubbles. Classical theory suggests that it should be hot, with characteristic temperatures of order a million degrees. This temperature should be set by the balance between heating by the internal termination shocks of the central stellar winds and supernovae, which expand at thousands of km s, and c...

The cold diffuse interstellar medium must harbor pockets of hot gas to produce the large observed abundances of molecular species, the formation of which requires much more energy than available in the bulk of its volume. These hot spots have so far escaped direct detection but observations and modeling severely constrain their phase-space structure i.e. they must have a small volume filling fa...