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Given the important role of lake ecosystems in social and economic development, and the current severe environmental degradation in China, a systematic diagnosis of the ecological security of lakes is essential for sustainable development. A Driving-force, Pressure, Status, Impact, and Risk (DPSIR) model, combined with data screening for lake ecological security assessment was developed to over...
abstract this paper discusses several commonly used models for strategic marketing¹ including market environmental analysis methods (i.e. swot and pest analysis) and strategic marketing tools and techniques (i.e. boston matrix and shell directional policy matrix)and shows how these models may help a firm to achieve its strategic goals. at first, the main reason for doing this research is de...
This paper presents an original approach to Strategic Environmental Assessment (SEA) for supporting decision-making processes in Local Land-Use Planning (LLUP) which integrates a set of frameworks and methodologies into technologies based on the use of Geographic Information. The technologies embrace the domain of Planning Support Systems (PSS), whose architecture is based on the Geodesign fram...
in this thesis, we consider a mathematical model of cancer with completely unknown parameters. we study the stability of critical points which are biologically admissible. then we consider a control on the system and introduce situations at which solutions are attracted to critical points and so the cancer disease has auto healing. the lyapunov stability method is used for estimating the un...
In the framework of periodic update Sardinian River Basin Management and Water Protection Plans (Italian Law 152/2006, transposition 2000/60/EC Directive), we investigated AQUATOX model feasibility as a tool for assessing relationships between Driving forces, Pressures, States, Impacts Responses (DPSIR scheme). To do this, applied to forecast response (Italy) river quality status set different ...
Important Agricultural Heritage Systems (IAHS) are complex adaptive systems that multidimensional and exhibit strategic values of sustainability. In the context modernization, IAHS have been increasingly challenged. Thus, heritage sites must explore dynamic conservation approaches formulate management strategies. However, few studies provided either theoretical methods or practical cases as sup...
rivers and runoff have always been of interest to human beings. in order to make use of the proper water resources, human societies, industrial and agricultural centers, etc. have usually been established near rivers. as the time goes on, these societies developed, and therefore water resources were extracted more and more. consequently, conditions of water quality of the rivers experienced rap...
over the past decades a number of approaches have been applied for forecasting mortality. in 1992, a new method for long-run forecast of the level and age pattern of mortality was published by lee and carter. this method was welcomed by many authors so it was extended through a wider class of generalized, parametric and nonlinear model. this model represents one of the most influential recent d...
There is a pressing need to integrate biophysical and human dimensions science to better inform holistic ecosystem management supporting the transition from single species or single-sector management to multi-sector ecosystem-based management. Ecosystem-based management should focus upon ecosystem services, since they reflect societal goals, values, desires, and benefits. The inclusion of ecosy...
abstract the present study was conducted to investigate the effect of using model essays on the development of writing proficiency of iranian pre-intermediate efl learners. to fulfill the purpose of the study, 55 pre- intermediate learners of parsa language institute were chosen by means of administering proficiency test. based on the results of the pretest, two matched groups, one as the expe...
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