A dynamic population model of parity progression in age structure
نویسندگان
چکیده
منابع مشابه
Age-dependent Population Dynamics Based on Parity Interval Progression
A controlled age-dependent population equation based on the parity interval progression is developed. The asymptotic properties for the stationary case are studied by investigating the spectrum of the corresponding population operator in the semigroup framework.
متن کاملControlled Age- Dependent Population Dynamics Based on Parity Progression
The “age-dependent parity progression model” is intended to describe the birth process of females by introducing the age distribution density of women who have a given birth order (number of births) and the ageparity-specific fertility. The idea of population dynamics based on parity progression can be traced back to Henry [I], and later Whelpton [2] and Feeney [3]. The advantage of this model ...
متن کاملA dynamic population model of disease progression in COPD.
To contribute to evidence-based policy making, a dynamic Dutch population model of chronic obstructive pulmonary disease (COPD) progression was developed. The model projects incidence, prevalence, mortality, progression and costs of diagnosed COPD by the Global Initiative for Chronic Obstructive Lung Disease-severity stage for 2000-2025, taking into account population dynamics and changes in sm...
متن کاملUncertain population model with age-structure
The partial differential equation has been vastly applied to analyzing the problems in the life sciences. However, these types of partial differential equation models are mostly deterministic. As we know, the real life is full of uncertain factors, hence the above deterministic partial differential equations are not enough to handle the problems with uncertain noises. For modelling these proble...
متن کاملthe role of thematic structure in comprehending spoken language
in fact this study is concerned with the relationship between the variation in thematice structure and the comprehension of spoken language. so the study focused on the following questions: 1. is there any relationship between thematic structure and the comprehension of spoken language? 2. which of the themes would have greated thematic force and be easier for the subjects to comprehend? accord...
15 صفحه اولذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Mathematical and Computer Modelling
سال: 1993
ISSN: 0895-7177
DOI: 10.1016/0895-7177(93)90134-k