background: dairy products intolerance is defined by existing of gastrointestinal symptoms following dairy product consumption. its prevalence varies among different countries. this study is conducted to determine the frequencies and severities of intolerance symptoms in the consumption of different dairy products in iranian students of medical sciences. methods: in this cross-sectional study, ...

A considerable contribution to the worlds total GHG emission originates from gas flaring: According to a World Bank estimation an amount of around 150 billion cubic meters of natural gas is flared around the world annually, contaminating the environment with 400 million tons of CO2. This is equivalent to around 25 % of the United States’ gas consumption, or 30 % of gas consumption in the Europe...

The gas mass fraction of spiral galaxies is strongly correlated with the central surface brightness of their disks. There exist many dim galaxies with long gas consumption time scales and fg > 0.5. This resolves the gas consumption paradox. The surface density of gas follows the optical surface brightness, but does not vary by as large a factor. This is the signature of a critical density thres...

This paper proposes an effective model based on the least squares support vector machines (LSSVM) and the particle swarm optimization (PSO), termed PSO-LSSVM, for prediction of natural gas consumption, as an important energy resource. The salient feature of mapping nonlinear data into high dimension feature space, distinguishes LS-SVM as a powerful approach for forecasting and estimation. Optim...

This research investigates the co-movement and causality relationships between greenhouse gas emissions, energy consumption and economic growth for 16 Asian countries over the period 1990-2012. The empirical findings suggest that in the long run, bidirectional Granger causality between energy consumption, GDP and greenhouse gas emissions and between GDP, greenhouse gas emissions and energy cons...

The objective of this paper is to reinvestigate the relationship between natural gas consumption and economic growth by including foreign direct investment, capital and trade openness in Malaysia for the period of 1971-2012. The structural break unit root test is employed to investigate the stationary properties of the series. We have applied combined cointegration test to examine the relations...