scholarly journals A pixel level evaluation of five multitemporal global gridded population datasets: a case study in Sweden, 1990–2015

2020 ◽  
Vol 42 (2) ◽  
pp. 255-277
Author(s):  
Maria Francisca Archila Bustos ◽  
Ola Hall ◽  
Thomas Niedomysl ◽  
Ulf Ernstson
Keyword(s):  
High Resolution ◽  
Human Activity ◽  
Human Population ◽  
Population Distribution ◽  
Swedish Population ◽  
Policy Makers ◽  
Modeling Techniques ◽  
Global Population ◽  
Over Time

Abstract Human activity is a major driver of change and has contributed to many of the challenges we face today. Detailed information about human population distribution is fundamental and use of freely available, high-resolution, gridded datasets on global population as a source of such information is increasing. However, there is little research to guide users in dataset choice. This study evaluates five of the most commonly used global gridded population datasets against a high-resolution Swedish population dataset on a pixel level. We show that datasets which employ more complex modeling techniques exhibit lower errors overall but no one dataset performs best under all situations. Furthermore, differences exist in how unpopulated areas are identified and changes in algorithms over time affect accuracy. Our results provide guidance in navigating the differences between the most commonly used gridded population datasets and will help researchers and policy makers identify the most suitable datasets under varying conditions.

scholarly journals Inter-organizational collaboration for energy efficiency in the maritime sector: the case of a database project

2019 ◽  
Vol 12 (8) ◽  
pp. 2201-2213
Author(s):  
Josefin Borg ◽  
Hannes von Knorring
Keyword(s):  
Energy Efficiency ◽  
Knowledge Sharing ◽  
Energy Efficient ◽  
Observational Research ◽  
Collaborative Network ◽  
Policy Makers ◽  
Efficiency Measures ◽  
New Knowledge ◽  
Over Time

AbstractThis article explores the complexities of establishing knowledge-sharing practices between organizations through a case study of the creation of a database for energy efficiency measures relevant to the shipping sector. As researchers and policy-makers tend to point towards knowledge sharing and collaboration as means towards a more energy-efficient society, there is a need to better understand the knowledge sharing practices in such initiatives. The study is based upon extensive fieldwork where the first author was recruited to a collaborative network on energy efficiency in the shipping sector, to aid in the development of the collaboration while carrying out participatory-observational research in an ethnographic tradition. The study highlights the need to maintain realistic expectations for new knowledge-sharing collaborations, and the necessity to allow such arrangements to develop over time.

scholarly journals Global and country-level estimates of human population at high altitude

2021 ◽  
Vol 118 (18) ◽  
pp. e2102463118
Author(s):  
Joshua C. Tremblay ◽  
Philip N. Ainslie
Keyword(s):  
High Altitude ◽  
Human Population ◽  
Population Distribution ◽  
Disease Prevalence ◽  
Country Level ◽  
Elevation Data ◽  
Terrain Elevation ◽  
Global Population ◽  
Absolute Population ◽  
Epidemiology And Public Health

Estimates of the global population of humans living at high altitude vary widely, and such data at the country level are unavailable. Herein, we use a geographic information system (GIS)-based approach to quantify human population at 500-m elevation intervals for each country. Based on georeferenced data for population (LandScan Global 2019) and elevation (Global Multiresolution Terrain Elevation Data), 500.3 million humans live at ≥1,500 m, 81.6 million at ≥2,500 m, and 14.4 million at ≥3,500 m. Ethiopia has the largest absolute population at ≥1,500 m and ≥2,500 m, while China has the greatest at ≥3,500 m. Lesotho has the greatest percentage of its population above 1,500 m, while Bolivia has the greatest at ≥2,500 m and ≥3,500 m. High altitude presents a myriad of environmental stresses that provoke physiological responses and adaptation, and consequently impact disease prevalence and severity. While the majority of high-altitude physiology research is based upon lowlanders from western, educated, industrialized, rich, and democratic countries ascending to high altitude, the global population distribution of high-altitude residents encourages an increased emphasis on understanding high-altitude physiology, adaptation, epidemiology, and public health in the ∼500 million permanent high-altitude residents.

scholarly journals Global Flood Exposure from Different Sized Rivers

2021 ◽  
Author(s):  
Mark V. Bernhofen ◽  
Mark A. Trigg ◽  
P. Andrew Sleigh ◽  
Christopher C. Sampson ◽  
Andrew M. Smith
Keyword(s):  
High Resolution ◽  
Flood Risk ◽  
Population Distribution ◽  
Flood Hazard ◽  
Population Data ◽  
Flood Exposure ◽  
Model Independent ◽  
Further Development ◽  
Global Population

Abstract. There is now a wealth of data to calculate global flood exposure. Available datasets differ in detail and representation of both global population distribution and global flood hazard. Previous studies of global flood risk have used datasets interchangeably without addressing the impacts using different datasets could have on exposure estimates. By calculating flood exposure to different sized rivers using a model independent geomorphological approach, we show that limits placed on the size of river represented in global flood models result in global flood exposure estimates that differ by greater than a factor of 2. The choice of population dataset is found to be equally important and can have enormous impacts on national flood exposure estimates Up-to-date, high resolution population data is vital for accurately representing exposure to smaller rivers and will be key in improving the global flood risk picture. Our results inform the appropriate application of these datasets and where further development and research is needed.

Empowering Women Entrepreneurs Through Microfinance - A Case of Rural Bangladesh

2017 ◽  
Vol 3 (2) ◽  
pp. 7
Author(s):  
Saida Parvin
Keyword(s):  
Women's Empowerment ◽  
Assessment Tools ◽  
Women’S Empowerment ◽  
Case Study Method ◽  
Policy Makers ◽  
Theoretical Contribution ◽  
Donor Agencies ◽  
Definition Of ◽  
The Impact

Women’s empowerment has been at the centre of research focus for many decades. Extant literature examined the process, outcome and various challenges. Some claimed substantial success, while others contradicted with evidence of failure. But the success remains a matter of debate due to lack of empirical evidence of actual empowerment of women around the world. The current study aimed to address this gap by taking a case study method. The study critically evaluates 20 cases carefully sampled to include representatives from the entire country of Bangladesh. The study demonstrates popular beliefs about microfinance often misguide even the borrowers and they start living in a fabricated feeling of empowerment, facing real challenges to achieve true empowerment in their lives. The impact of this finding is twofold; firstly there is a theoretical contribution, where the definition of women’s empowerment is proposed to be revisited considering findings from these cases. And lastly, the policy makers at governmental and non-governmental organisations, and multinational donor agencies need to revise their assessment tools for funding.

Effects of Financial Inclusion on Startup Establishment in OECD Countries

2018 ◽  
Vol 34 (1) ◽  
Author(s):  
Dinh Thi Thanh Van ◽  
Nguyen Thuc Trang
Keyword(s):  
Success Factors ◽  
Oecd Countries ◽  
Financial Inclusion ◽  
Economic Research ◽  
Mobile Banking ◽  
Policy Makers ◽  
Academic Researchers ◽  
Financial Index ◽  
Enterprise Survey

Financial inclusion and startup are two topics, which recently get attention of academic researchers and policy makers in Vietnam. One of the important factors for setting up a successful startup is the financial capability of the owners. Therefore, financial inclusion has a strong correlation with startup establishment. This article tested the effects of several factors in financial index (findex) developed by World Bank on startup establishment in some OECD countries. The result showed that borrowing from friends and relatives along with from credit institutions and opening a debit account at banks have  significant impacts on startup establishment in these countries. Finally, the article presented several recommendations for policy makers to stimulate the startup growth in Vietnam in the next time. Key words startup, financial inclusion, startup establishment References 1. Colman Msoka (2015), “Financial inclusion and microfinance in Tanzania”, Inclusive growth: Tanzania Country Report2. Endeavor-GEM, 2011, “High-Impact Entrepreneurship Global Report”3. Eric Ries, 2012, “The Lean Startup” book”, http://www.stpia.ir/files/The%20Lean%20Startup%20.pdf 4. European Startup Monitor, 2015, “European Startup Monitor 2015”, http://europeanstartupmonitor.com/fileadmin/presse/download/esm_2015.pdf 5. Jennifer Dahlin Ivarsson (2014), “Mobile-banking and entrepreneurship: Is there a link? A case study on South Africa”, Nationalekonomiska Institutionen, Box 7082, ISSN 0283 – 15896. Maher Al-Mahouq (2010), “Success factors of small and medium-sized enterprises(SMEs): The case of Jordan”, Anadol University jourmal of social sciences, Cilt/Vol.: 10 – Say/No:1-16 (2010)7. Mohammed S.Chowdhury (2013), “Success factors of entrepreneurs of small and medium sized enterprises: Evidence from Banladesh”, Business and Economic Research, ISSN 2162 – 4860, 2013, Vol.3, No.2.8. OECD, 2015, “Entrepreneurship at a Glance 2015”9. Roman Angela, 2011, “SME’s sector access to finance: An overview”10. Yao Wang, 2014, “What are the biggest obstacles to growth of SMEs in developing countries? An empirical evidence from an enterprise survey”, JED 210 Paper

When Culturally Significant Songs are Decontextualised: The Initiation Song Somagwaza, A Case Study

2018 ◽  
Vol 28 (2) ◽  
Author(s):  
T Dowling ◽  
Somikazi Deyi ◽  
Anele Gobodwana
Keyword(s):  
Qualitative Research ◽  
Comparative Method ◽  
Popular Song ◽  
Focus Group Discussions ◽  
Group Discussions ◽  
Ritual Music ◽  
Constant Comparative Method ◽  
Small Focus ◽  
Over Time

While there have been a number of studies on the decontextualisation and secularisation of traditional ritual music in America, Taiwan and other parts of the globe, very little has been written on the processes and transformations that South Africa’s indigenous ceremonial songs go through over time. This study was prompted by the authors’ interest in, and engagement with the Xhosa initiation song Somagwaza, which has been re-imagined as a popular song, but has also purportedly found its way into other religious spaces. In this article, we attempted to investigate the extent to which the song Somagwaza is still associated with the Xhosa initiation ritual and to analyse evidence of it being decontextualised and secularised in contemporary South Africa. Our methodology included an examination of the various academic treatments of the song, an analysis of the lyrics of a popular song, bearing the same name, holding small focus group discussions, and distributing questionnaires to speakers of isiXhosa on the topic of the song. The data gathered were analysed using the constant comparative method of analysing qualitative research.

Sign in / Sign up

Export Citation Format

Share Document