the aim of this study was to analyze the impact of green tea on dentin erosion.twelve extracted sound human premolars were immersed in coca cola with a ph of 2.8 for 5 minutes. the surface microhardness was measured with a knoop diamond under a load of 50gr/10s. the teeth were immersed in green tea (camellia sinensis) solution for one minute. the microhardness values were measured again and com...

With increasing interest in the use of urban green space to promote human health, there is a need to understand the extent to which park users conceptualize these places as a resource for health and well-being. This study sought to examine park users' own reasons for and benefits from green space usage and compare these with concepts and constructs in existing person-environment-health theories...

The Stern-Stiglitz Report on carbon pricing emphasizes that environmental policy must not only cope with market failures, but also government and organizational failures. Focusing the latter, this paper investigates how some practices central to human resource management – employee selection training, performance appraisal rewards, discretion empowerment can be jointly deployed direct manageria...

the purpose of this research was to assess the role of educational factors in protecting urbanlandscapes in tehran metropolitan. this is a quantitative research, applied and descriptivecorrelationmethod was used. the research population consisted of all participants in educationalcourses held by tehran municipality (n=300) and 172 of them selected by using simple randomsampling method. to gathe...

This paper presents a new decision making approach for group multi-criteria evaluation for green supply chain management strategies, which clubs green procurement , manufacturing , green service to customer and environmental management process with order allocation for dynamic supply chains to cope market variations. More specifically, the developed approach imitates the knowledge acquisition a...

Abstract The impact of COVID-19 on university students’ utilization campus’ green spaces and its need in the post-epidemic era was studied this research. Data were collected from Chinese Japanese students using an online questionnaire. findings show that induced campus lockdown affected motivation to go school, reduced time spent campus, school frequency. encouraged explore despite their inabil...