نتایج جستجو برای: resource substitution

تعداد نتایج: 267609  

Journal: :Bulletin of the World Health Organization 2011

I.P.S. Ahlawat N.K. Sharma R.J. Singh,

Of the several mechanisms that can bring about efficient resource use, the most widelyapplicable one is intercropping systems that can make better use of resources. The aim of thisstudy was to evaluate resource capture and resource use efficiency in transgenic cotton-peanutintercropping system and in their respective sole crops with using 25-50% substitution ofrecommended dose of nitrogen (RDN)...

2011
Pietro F. Peretto Simone Valente

The relative performance of open economies is analyzed in an endogenous growth model with asymmetric trade. A resource-rich country trades resource-based intermediates for final goods produced by a resource-poor economy. The effects of an increase in the resource endowment depend on the elasticity of substitution between resources and labor in intermediates’ production. Under substitution (comp...

Journal: :Bulletin of the World Health Organization 2011
Michelle Kermode Nick Crofts M Suresh Kumar Jimmy Dorabjee

Approximately 10% of new HIV infections worldwide are attributable to injecting drug use, often of an opiate such as heroin. 1 Opioid substitution therapy supplies illicit drug users with a replacement drug, a prescribed medicine such as methadone or buprenorphine, which is usually administered orally in a supervised clinical setting. The effectiveness of this therapy is recognized in developed...

2010
Pietro F. Peretto

We analyze the relative growth performance of open economies in a two-country model where di¤erent endowments of labor and a natural resource generate asymmetric trade. A resource-rich economy trades resource-based intermediates for …nal manufacturing goods produced by a resource-poor economy. Productivity growth in both countries is driven by endogenous innovations. The e¤ects of a sudden incr...

In this paper, a dynamic optimization approach for optimal choice of energy carriers in thermal power plants is proposed that analyzes the substitution of energy carriers in short-term planning of a power plant.The model is based on the linear programming method with the objective of minimizing costs under constraints of resource availability, energy balances, environmental regulations and elec...

2003
Anne Epaulard Aude Pommeret

In this short paper, uncertainties on resource stock and on technical progress are introduced into an intertemporal equilibrium model of optimal extraction of a non-renewable resource. The representative consumer maximizes a recursive utility function which disentangles between intertemporal elasticity of substitution and risk aversion. A closed-form solution is derived for both the optimal ext...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده ادبیات و زبانهای خارجی 1388

the present study was an attempt to conduct a contrastive analysis between general english (ge) and english for specific purposes (esp) texts in terms of cohesion and cohesive devices. to this end, thirty texts from different esp and ge textbooks were randomly selected. then they were analyzed manually to find the frequency of cohesive devices. cohesive devices include reference, substitution, ...

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