نتایج جستجو برای: spatial organization and structure

تعداد نتایج: 17026767  

Journal: :Bulletin of the Psychonomic Society 1974

Journal: :اقتصاد و توسعه کشاورزی 0
فاطمه کشیری کلایی سید علی حسینی یکانی سید مجتبی مجاوریان

introduction: market power is an important factor affecting welfare. existence of market power on the purchase side reduces supplier welfare. however, existence of market power on the sales side reduces supplier welfare. some believe that the agricultural market structure is a monopoly. in fact, most of the agricultural products can be purchased by small firms and then delivered to consumers be...

Journal: :Science 2008
Johan van de Koppel Joanna C Gascoigne Guy Theraulaz Max Rietkerk Wolf M Mooij Peter M J Herman

Spatial self-organization is the main theoretical explanation for the global occurrence of regular or otherwise coherent spatial patterns in ecosystems. Using mussel beds as a model ecosystem, we provide an experimental demonstration of spatial self-organization. Under homogeneous laboratory conditions, mussels developed regular patterns, similar to those in the field. An individual-based model...

Journal: :Current Opinion in Microbiology 2014

Journal: :Izvestiya Rossiiskoi akademii nauk. Seriya geograficheskaya 2019

Hashem Dadashpoor, Nasim Ghasemi

Migration and quality of redistribution of population across country is one of the main factors that planners take into account to control population and guide its movements to economic poles. Scientific recognition of migration phenomenon is important for managing and policy making in the country. These movements change migration pattern, in a way that along with increase in population and the...

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