Microbial contamination in groundwater supply in a cold climate and coarse soil: case study of norovirus outbreak at Lake Mývatn, Iceland

2013 ◽  
Vol 44 (6) ◽  
pp. 1114-1128 ◽  
Author(s):  
M. J. Gunnarsdottir ◽  
S. M. Gardarsson ◽  
H. O. Andradottir

This paper explores the fate and transport of microbial contamination in a cold climate and coarse aquifers. A confirmed norovirus outbreak in a small rural water supply in the late summer of 2004, which is estimated to have infected over 100 people, is used as a case study. A septic system, 80 m upstream of the water intake, is considered to have contaminated drinking water. Water samples tested were negative for coliform and strongly positive for norovirus. Modelling predicts that a 4.8-log10 removal was possible in the 8 m thick vadose zone, while only a 0.7-log10 and 2.7-log10 removal in the aquifer for viruses and Escherichia coli, respectively. The model results support that the 80 m setback distance was inadequate and roughly 900 m aquifer transport distance was needed to achieve 9-log10 viral removal. Sensitivity analysis showed that the most influential parameters on model transport removal rate are grain size diameter and groundwater velocity, temperature and acidity. The results demonstrate a need for systematic evaluation of septic systems in rural areas in lesser studied coarse strata at low temperatures, thereby strengthening data used for regulatory requirements for more confident determination on safe setback distances.

2020 ◽  
Vol 1 (2) ◽  
pp. 18-33
Author(s):  
Zarina Che Imbi ◽  
Tse-Kian Neo ◽  
Mai Neo

In the era of digital learning, multimedia-based classroom has been commonly used in higher education including Malaysian higher education institutions. A case study has been performed to evaluate web-based learning using Level 1 to 3 of Kirkpatrick's model in a multi-disciplinary course at Multimedia University, Malaysia. In this study, mixed method research was employed in which triangulation was performed from multiple sources of data collection to give deeper understanding. Students perceived that learning with multimedia was enjoyable. They were also motivated in learning and engaged through the use of web module as multimedia was perceived to motivate them and make learning fun. Students showed significant improvements in their knowledge based on the pre-test and post-test results on learning evaluation. Students were perceived to transfer the learning from web-based learning into the learning outcome. The systematic evaluation can provide the feedback that educators and institution as a whole need to improve the learning environment and programme quality. This study contributes to the research field by adding another perspective in evaluations of web-based learning. It also provides empirical evidence on student perspectives, learning and behaviour in a private university. It demonstrated that the Kirkpatrick's model is useful as an evaluation tool to be used in higher education.


Author(s):  
Ahad Nejad Ebrahimi ◽  
Farnaz Nazarzadeh ◽  
Elnaz Nazarzadeh

Throughout history, gardens and garden designing has been in the attention of Persian architects who had special expertise in the construction of gardens. The appearance of Islam and allegories of paradise taken from that in Koran and Saints’ sayings gave spirituality to garden construction. Climate conditions have also had an important role in this respect but little research has been done about it and most of the investigations have referred to spiritual aspects and forms of garden. The cold and dry climate that has enveloped parts of West and North West of Iran has many gardens with different forms and functions, which have not been paid much attention to by studies done so far. The aim of this paper is to identify the features and specifications of cold and dry climate gardens with an emphasis on Tabriz’s Gardens.  Due to its natural and strategic situation, Tabriz has always been in the attention of governments throughout history; travellers and tourists have mentioned Tabriz as a city that has beautiful gardens. But, the earthquakes and wars have left no remains of those beautiful gardens. This investigation, by a comparative study of the climates in Iran and the effect of those climates on the formation of gardens and garden design, tries to identify the features and characteristics of gardens in cold and dry climate. The method of study is interpretive-historical on the basis of written documents and historic features and field study of existing gardens in this climate. The results show that, with respect to natural substrate, vegetation, the form of water supply, and the general form of the garden; gardens in dry and cold climate are different from gardens in other climates.


2017 ◽  
Vol 16 (7) ◽  
pp. 1415-1421
Author(s):  
Yasemin Tabak ◽  
Senol Yildiz ◽  
Volkan Enc ◽  
Mustafa Kara ◽  
Emine Acet

2016 ◽  
Vol 5 (2) ◽  
Author(s):  
Vinod N. Sambrani

India is a country which is in forefront of being called a developed nation. To be a developed nation, India has to first look at its rural development, because 70 percent of the population live in rural areas, which means more than 700 million people are spread across 6,27,000 villages. Rural development is more than ever before linked to entrepreneurship. Establishments and agencies promoting rural development now look at entrepreneurship as a strategic development medium that could speed up the rural development process. Development institutions believe that rural entrepreneurship offers a huge potential for employment. In this paper a case study of a young entrepreneur who has taken up horticulture (vegetable plants nursery) as his full time profession, with a mission to help the neighbouring farmers is studied, the purpose of this paper is to understand the government role (policies and schemes), the difficulties faced by the entrepreneur during the startup time and knowledge transfer from the horticulture department, nursery management. The methodology followed is in-depth interaction with the entrepreneur. The outcome of paper will be to understand how rural entrepreneurship is helping improve the quality of life for families, communities and individuals leading to sustainable economy and environment.


Land ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 132
Author(s):  
Wei Li ◽  
Zhanwei Zhang ◽  
Yang Zhou

Previous planning for rural revival in towns has emphasized construction and government-led policies. However, we argue that the dilemmas of peri-metropolitan rural areas, such as Desakota in China, are far more complex faced with rural super village and hollowed village transformations. Rural revival planning needs to coordinate with the development of urbanized and rural areas towards multifunctional goals and plans as a whole. Therefore, we selected the town master plan of Lijia, a typical peri-metropolitan village in China, as a case study. Through a historical–interpretative approach involving analysis of planning policies, questionnaires, and in-depth interviews with the key stakeholders involved, we structured the process and mechanism of rural revival in Lijia into three phases: resource identification, capitalization, and financialization. In different phases, different stakeholders adopt different roles. The government takes a leading role in resource identification and capitalization, while firms take a leading role in the process of financialization. “Market-dominant and government-guided” planning stimulates villagers to participate in rural revival. We highlight the importance of multifunctional land-use in terms of rural revival in the master planning of peri-metropolitan villages and provide a practical reference for uniting multiple stakeholders, including governments, firms, and villagers.


Energies ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1398
Author(s):  
Xinfang Wang ◽  
Rosie Day ◽  
Dan Murrant ◽  
Antonio Diego Marín ◽  
David Castrejón Botello ◽  
...  

To improve access to affordable, reliable and sustainable energy in rural areas of the global south, off-grid systems using renewable generation and energy storage are often proposed. However, solution design is often technology-driven, with insufficient consideration of social and cultural contexts. This leads to a risk of unintended consequences and inappropriate systems that do not meet local needs. To address this problem, this paper describes the application of a capabilities-led approach to understanding a community’s multi-dimensional energy poverty and assessing their needs as they see them, in order to better design suitable technological interventions. Data were collected in Tlamacazapa, Mexico, through site visits and focus groups with men and women. These revealed the ways in which constrained energy services undermined essential capabilities, including relating to health, safety, relationships and earning a living, and highlighted the specific ways in which improved energy services, such as lighting, cooking and mechanical power could improve capabilities in the specific context of Tlamacazapa. Based on these findings, we propose some potential technological interventions to address these needs. The case study offers an illustration of an assessment method that could be deployed in a variety of contexts to inform the design of appropriate technological interventions.


Land ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 117
Author(s):  
Mireille Mizero ◽  
Aristide Maniriho ◽  
Bosco Bashangwa Mpozi ◽  
Antoine Karangwa ◽  
Philippe Burny ◽  
...  

Rwanda’s Land Policy Reform promotes agri-business and encourages self-employment. This paper aims to analyze the situation from a self-employment perspective when dealing with expropriation risk in rural areas. In this study, we conducted a structured survey addressed to 63 domestic units, complemented by focus groups of 47 participants from Kimonyi Sector. The binary logistic regression analysis revealed that having job alternatives, men heading domestic units, literacy skills in English, and owning land lease certificates (p < 0.05) are positively and significantly related to awareness of land expropriation risk. The decision of the head of the domestic unit to practice the main activity under self-employment status is positively influenced by owning a land lease certificate, number of plots, and French skills, while skills in English and a domestic unit’s size have a positive and significant influence on involvement in a second activity as self-employed. Information on expropriation risk has no significant effect on self-employment. The domestic unit survey revealed that 34.9% of the heads of domestic units only have one job, 47.6% have at least two jobs in their everyday life, 12.7% have a minimum of three jobs, and 4.8% are inactive. The focus group synthesis exposed the limits to self-employment ability and facilities.


2021 ◽  
Vol 13 (4) ◽  
pp. 2189
Author(s):  
Aurore Flipo ◽  
Madeleine Sallustio ◽  
Nathalie Ortar ◽  
Nicolas Senil

Sustainable mobility issues in rural areas, compared with urban mobility issues, have so far been poorly covered in the French and European public debate. However, local mobility issues are determining factors in territorial inequalities, regional development and ecological transition. This paper is based on preliminary findings of qualitative socio-anthropological fieldwork carried out in two rural departments of the Auvergne-Rhône-Alpes region: Drôme and Ardèche. Our objective is to highlight how the question of sustainable local mobility is linked to governance issues and multiple overlapping institutions. We argue that analyzing stakeholders’ strategies and territorial governance is key to understanding the contemporary dynamics surrounding a transition towards a more sustainable mobility in rural areas. In order to do so, we show how the debates surrounding the adoption of a law allowing for the transfer of responsibility to local authorities for the organization of mobility services reveals the complexity of local mobility governance in rural areas and provides material for the analysis of the logics of stakeholder engagement, cooperation and conflict within the field of sustainable mobility. Through the case study of the organization of a local public transport service in a rural area, we shed light on the action of multiple stakeholders and their potentially antagonistic objectives.


Sign in / Sign up

Export Citation Format

Share Document