Urban Internal Structure of China's Cities

Understanding the Internal Structure of Self-Organizing Cities

Lucas and Rossi-Hansberg (2002) and Fujita and Ogawa (1982, 1989) develop urban models in which economic activity self-organizes due to spillovers in production. However, Fujita and Ogawa (1982, 1989) show that rents and employment density are flat or falling as the city center is approached, while in the simulations of Lucas and Rossi-Hansberg (2002) rents rise at an increasing rate towards th...

Urban Landscapes and Sustainable Cities

Ecological research targeting sustainable urban landscapes needs to include findings and methods from many lines of ecological research, such as the link between biodiversity and ecosystem function, the role of humans in ecosystems, landscape connectivity, and resilience. This paper reviews and highlights the importance of these issues for sustainable use of ecosystem services, which is argued ...

The Structure of Cities

Investigating Factors Affecting Urban Growth of Large Cities in Iran

The present paper focuses on determining the most important factors affecting urban growth in large cities of Iran through modeling and comparing the common and diverse points of urban growth obtained from other studies. For this purpose, by reviewing the theoretical concepts associated with urban growth, quantities and measurable variables are developed as proper frameworks to study the influe...

Changing spectrum of malnutrition in urban cities.

We read with interest the recent study published in [1] regarding persistent levels of undernutrition in city like Chandigarh. The authors have concluded that the prevalence of underweight among under-five year old children remained almost stagnant in the last one decade from 51.6% (1997) to 50.4% (2007). We would like to point out that sampling frame and design of the published study pose limi...