Population growth rates: issues and an application

Sunflower summer-planting yield as affected by plant population and nitrogen application rates

an investigation about the relationship between insurance lines and economic growth; the case study of iran

مطالعات قبلی بازار بیمه را به صورت کلی در نظر می گرفتند اما در این مطالعه صنعت بیمه به عنوان متغیر مستفل به بیمه های زندگی و غیر زندگی شکسته شده و هم چنین بیمه های زندگی به رشته های مختلف بیمه ای که در بازار بیمه ایران سهم قابل توجهی دارند تقسیم میشود. با استفاده از روشهای اقتصاد سنجی داده های برای دوره های 48-89 از مراکز ملی داده جمع آوری شد سپس با تخمین مدل خود بازگشتی برداری همراه با تعدادی ...

An Analysis of Population Growth and Physical Growth of Shahrood City

Following the complex economic and technological changes after the industrial revolution, there was a dramatic change in the size of the cities and the proportion of the population living there which has led to socio-economic damage and adverse environmental impacts, including destruction and alteration of agricultural land use, pollution of air, water and soil. In the meantime, the physical de...

Population ecology issues in tumor growth.

Mathematical models developed from population ecology are applied to tumor-host interactions and demonstrate the importance of increased efficiency in substrate absorption as a mechanism enabling tumor cells to (a) proliferate despite inefficient energy production and (b) compete successfully for resources with the numerically superior host cells. As with many biological invasions observed in n...

Design issues for population growth models.

We briefly review and discuss design issues for population growth and decline models. We then use a flexible growth and decline model as an illustrative example and apply optimal design theory to find optimal sampling times for estimating model parameters, specific parameters and interesting functions of the model parameters for the model with two real applications. Robustness properties of the...