Nutrient control in water bodies: A systems approach

James S. Shortle; James R. Mihelcic; Qiong Zhang; Mazdak Arabi

doi:10.1002/jeq2.20022

Nutrient control in water bodies: A systems approach

Journal of Environmental Quality ◽

10.1002/jeq2.20022 ◽

2020 ◽

Vol 49 (3) ◽

pp. 517-533

Author(s):

James S. Shortle ◽

James R. Mihelcic ◽

Qiong Zhang ◽

Mazdak Arabi

Keyword(s):

Systems Approach ◽

Water Bodies ◽

Nutrient Control

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Optimization of load norms for transfrontier water bodies taking into account natural processes of self-purification

Linnaeus Eco-Tech ◽

10.15626/eco-tech.2001.031 ◽

2019 ◽

pp. 257-266

Author(s):

A.I. Shishkin ◽

L.A. Mosur

Keyword(s):

Natural Water ◽

Water Body ◽

Systems Approach ◽

Water Systems ◽

Water Bodies ◽

Transboundary Water ◽

Natural Systems ◽

Natural Processes ◽

Pollutant Transformation ◽

Environmental Norms

In the paper is used the systems approach to justification and optimization ofnorms of the load on the transboundary water bodies. Special attention was given to evaluation of the factors determining the norms of load on the natural water systems for individualtransboundary water bodies. The effects of the pollutant transformation in the water bodiesare taken into account. The algorithm of attribution of quotas to various kinds of man-causedload along entire length of the water body in question is offered. The concrete methods ofmeeting the environmental norms for the priority-driven types of pollutants. It is offered tointroduce the norms attribution basing on environmental and emission approaches and takinginto account the use of the best technologies for industrial and natural systems.

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A Dynamic Systems Approach to Personality

European Psychologist ◽

10.1027//1016-9040.6.3.172 ◽

2001 ◽

Vol 6 (3) ◽

pp. 172-176 ◽

Cited By ~ 14

Author(s):

Lawrence A. Pervin

Keyword(s):

Dynamic Systems ◽

Systems Approach ◽

Biological Processes ◽

Recent Advances ◽

Dynamic View ◽

The Future ◽

History Of

David Magnusson has been the most articulate spokesperson for a holistic, systems approach to personality. This paper considers three concepts relevant to a dynamic systems approach to personality: dynamics, systems, and levels. Some of the history of a dynamic view is traced, leading to an emphasis on the need for stressing the interplay among goals. Concepts such as multidetermination, equipotentiality, and equifinality are shown to be important aspects of a systems approach. Finally, attention is drawn to the question of levels of description, analysis, and explanation in a theory of personality. The importance of the issue is emphasized in relation to recent advances in our understanding of biological processes. Integrating such advances into a theory of personality while avoiding the danger of reductionism is a challenge for the future.

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