نتایج جستجو برای: economic systems

تعداد نتایج: 1464925  

A. A. Ediang E. Uyigue O. A. Ediang

Climate change and its possible impacts on the environment and socio-economic systems now constitute the most important environmental problem facing mankind in the 21st century. Climate change will increase poverty and hardship, endanger food security, destabilize economies, decrease food and water and create social insecurity in many countries and undermine our goals for achieving sustainable ...

Journal: :علوم دامی ایران 0
محمود وطن¬خواه محمد علی طالبی محسن باقری

production, reproduction, management and economic parameters resulted from recordings of 5 flocks comprised of 720 heads of native goats during annual cycle of reproduction in transhumance, village and farming systems were employed to determine the performance of traits, cost-profit analysis as well as breeding objective. the overall mean for number of salable kid per goat in transhumance, vill...

Journal: تعلیم و تربیت 2015
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The Effect of Educational Expenditure on Economic Productivity: A Comparison of the Situations in Iran, India, Japan, Germany, and Australia A. Abbaaspoor, Ph.D. E. Jahaangard, Ph.D. E. Misaaghifar Different countries may differ in their educational systems, but they are the same as far as their educational systems interacting with their socio-economic systems.  From a ...

 This paper addresses the link between payment systems development and Economic growth and also investigates the role of technological growth and especially digital adoption status in this relationship. In this order, we use cross country data to compare Iranian payment systems situation with other countries in different aspects. Data analysis shows that Iran's payment systems are weaker in som...

ژورنال: انرژی ایران 2020

Residential and commercial sectors are the main consumers of energy. According to available data, these two sectors account for more than one-third of total energy use. Moreover, heating and cooling systems contribute to the major share of energy use in a building. The current research economically evaluates the radio-frequency heating systems for use in residential buildings. A building in Dis...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - دانشکده علوم اقتصادی و سیاسی 1385

چکیده ندارد.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه لرستان - دانشکده ادبیات و علوم انسانی 1391

abstract governing was disorganized for years, when mongols attached to iran and it caused to clearing way for interference of mongols princes. dispatching of holaku to the west culminated in establishing iilkhanan government. holakus activities in destruction of abbaasis government and activities which shows his staying in iran, made force oulus juji to comparison against iilkhanis gover...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده مدیریت و اقتصاد 1391

abstract nowadays, industries cannot play a crucial role in national and international competitions. the tourism industry is no exception. tourism industry development as the most important economic sector and income generation is one of the key challenges of economic development in the world. therefore, countries were successful that take advantage of the capabilities of tourism sector using ...

2006
CARLOS PASCUAL JENNIFER WIDNER ISABEL SAWHILL THOMAS MANN

Economists have long believed that investments in education, or “human capital,” are an important source of economic growth. Over the last 40 years output has grown about 3.5 percent a year and the productivity of labor has grown about 2.4 percent per year. The contribution of education to labor productivity growth is estimated to be between 13 and 30 percent of the total. Further, many people ...

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