نتایج جستجو برای: social behaviour

تعداد نتایج: 770801  

Journal: :Research in Transportation Economics 2018

Journal: :Zoologica Africana 1972

2015
Stein Kaartvedt Karl I. Ugland Thor A. Klevjer Anders Røstad Josefin Titelman Ingrid Solberg

Gelatinous organisms apparently play a central role in deep pelagic ecosystems, but lack of observational methodologies has restricted information on their behaviour. We made acoustic records of diel migrating jellyfish Periphylla periphylla forming small, ephemeral groups at the upper fringe of an acoustic scattering layer consisting of krill. Groups of P. periphylla were also documented photo...

Journal: :Ethology 2021

In July 2020, Michael Taborsky officially retired as Professor in Behavioural Ecology at the University of Bern, Switzerland. His scientific life has been, and still is devoted to revealing fundamental principles social evolution by natural selection, based on conflict cooperation among individuals. Colleagues, collaborators students celebrate this occasion with a symposium behaviour September ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی 1387

چکیده ندارد.

Journal: :تحقیقات اقتصادی 0
قهرمان عبدلی دانشیار دانشکده ی اقتصاد دانشگاه تهران مهدی موحدی بکنظر مهدی موحدی بکنظر دانشجوی دکتری علوم اقتصادی دانشگاه امام صادق(ع)

credence goods market is one of the markets that the asymmetric information has transformed it to a missing market. those goods and services that the applicant cannot determine the exact amount of their expenses due to the asymmetric information are called credence goods. from the economists' perspective, transaction in a market where participants are ignorant about each other is a game wi...

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