this paper presents future trends of urban wastes and their impacts on the environment of african cities using plausible mitigation scenarios. to accomplish this, an integrated dynamic model for urban waste flows was developed, tested, calibrated and validated. its parameter sensitivity was analyzed. using population projection up to 2052 with different levels of technological implementation, p...

The paper explores the pricing policies and green strategies in a duopoly green supply chain with vertical and horizontal competition, which includes a green manufacturer, a traditional manufacturer and a common retailer. The purpose of the paper is to address the following research problems: (1) How manufacturers’ market power influences the pricing policies and green strategies of supply chai...

Scientific research exploring ocean acidification has grown significantly in past decades. However, little science education research has investigated the extent to which undergraduate science students understand this topic. Of all undergraduate students, one might predict science students to be best able to understand ocean acidification. What conceptions and misconceptions of ocean acidificat...

abstract background: emotional intelligence as the ability to understand one and others, to communicate with people, to adapt and cope with environmental stress is defined. skills such as self-awareness, self-management, emotional awareness, emotional intelligence, relationship management as a recognized are four skills methods: this descriptive cross-sectional correlation in the 92-91 school y...

In the last few decades, awareness of environmental issues has increased significantly. Little has changed, however, in human activities contributing to environmental damage. Why is it so difficult for us to change our behavior in a domain that is clearly so important to the future of humanity? Here we propose and test the possibility that self-signaling, the way we view ourselves based on our ...

18 The growing environmental awareness and the apparent conflicts between economic and 19 environmental objectives turn energy planning problems naturally into multi-objective 20 optimization problems. In the current study, mixed fuel combustion is considered as an option to 21