Vehicular emissions and concentrations in school zones: A case study

2016 ◽  
Vol 23 (7) ◽  
pp. 1778-1785 ◽  
Author(s):  
Ali Alzuhairi ◽  
Mustafa Aldhaheri ◽  
Zhan-bo Sun ◽  
Jun-Seok Oh ◽  
Valerian Kwigizile
2020 ◽  
Vol 79 (ET.2020) ◽  
pp. 1-15
Author(s):  
Bhavesh Dhonde

Various research efforts are undertaken to reduce the ill-effects of urban freight transport on the city’s environment. Replacing conventional freight vehicles with electric commercial vehicles (ECVs) is considered as the most effective solution; however, this transition is facing several technological and infrastructural challenges. In developing countries, where cities are already struggling to manage with their present infrastructure, they would find it even more difficult. This paper highlights the opportunity for sharing of in-use freight vehicles as an immediate solution to reduce vehicular emissions. Case study of Surat city, India is taken to assess the use of small-sized commercial vehicles for urban freight transport. A detailed study has been carried out to determine the extent of under-utilized or unutilized capacities of these vehicles. Reductions in emissions due to the sharing of trips are estimated. Propositions are made to strategize and develop policies that promote sharing of urban freight trips.


2021 ◽  
Vol 10 (1) ◽  
pp. 135-152
Author(s):  
M. Hanif Satria Budi

The acceptance of new students (PPDB) using the zoning system was first implemented in Yogyakarta in 2018/2019. This zoning system aims to equalize education and improve the quality of education. This research was conducted to find out how the zoning system policy in Yogyakarta city under the auspices of the Yogyakarta City Education Office. This research uses qualitative approach with case study method. The results of the study showed that the zoning system in Yogyakarta has changed from the previous year. In 2019/2020 the zoning system provides a 10% chance of superior seeds, 30% of school zones, 10% of poor learners, 40% of quality pathways, 5% of out-of-school zoning pathways, and 5% of special pathways such as prospective learners whose parents moved from other regions to Yogyakarta. With this zoning system, the whole community has the opportunity to get a good quality education.


2014 ◽  
Vol 38 (01) ◽  
pp. 102-129
Author(s):  
ALBERTO MARTÍN ÁLVAREZ ◽  
EUDALD CORTINA ORERO

AbstractUsing interviews with former militants and previously unpublished documents, this article traces the genesis and internal dynamics of the Ejército Revolucionario del Pueblo (People's Revolutionary Army, ERP) in El Salvador during the early years of its existence (1970–6). This period was marked by the inability of the ERP to maintain internal coherence or any consensus on revolutionary strategy, which led to a series of splits and internal fights over control of the organisation. The evidence marshalled in this case study sheds new light on the origins of the armed Salvadorean Left and thus contributes to a wider understanding of the processes of formation and internal dynamics of armed left-wing groups that emerged from the 1960s onwards in Latin America.


2020 ◽  
Vol 43 ◽  
Author(s):  
Michael Lifshitz ◽  
T. M. Luhrmann

Abstract Culture shapes our basic sensory experience of the world. This is particularly striking in the study of religion and psychosis, where we and others have shown that cultural context determines both the structure and content of hallucination-like events. The cultural shaping of hallucinations may provide a rich case-study for linking cultural learning with emerging prediction-based models of perception.


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