It is generally accepted that special purpose algebraic systems are more efficient than general purpose ones, but as machines get faster this does not matter. An experiment has been performed to see if using the ideas of the special purpose algebra system CAMAL(F) it is possible to make the general purpose system REDUCE perform calculations in celestial mechanics as efficiently as CAMAL did twe...

Background It has been discussed whether emergency departments (EDs) reduce hospital admissions or not, and if the high turnover of patients results in higher readmission rates. Region Zealand was one of the first regions in Denmark to establish EDs, where all the acute patients for the hospital should be received: Køge and Holbæk (no beds, doctors employed by and working only in the ED), Nykøb...

In this paper, in order to study the impact of offshoring on sectoral and economywide rates of unemployment, we construct a two-sector, general-equilibrium model in which labor is mobile across the two sectors, and unemployment is caused by search frictions. We find that, contrary to general perception, wage increases and sectoral unemployment decreases due to offshoring. This result can be und...

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background: evidence shows that in iran alcohol abuse rate may be of concern, especially among the youth. the mental and social health and addiction department of the ministry of health and medical education has designed a plan to prevent, treat, and rehabilitate the patients abusing alcohol in a time period of 2011‑2015. methods: in a 6‑month period, three guiding committees of experts in the ...