Uncertainty tolerance among experts involved in drug reimbursement recommendations: Qualitative evidence from HTA committees in Canada and Poland

Author(s):  
Wiesława Dominika Wranik ◽  
Liesl Gambold ◽  
Stuart Peacock
Author(s):  
F. A. Heckman ◽  
E. Redman ◽  
J.E. Connolly

In our initial publication on this subject1) we reported results demonstrating that contrast is the most important factor in producing the high image quality required for reliable image analysis. We also listed the factors which enhance contrast in order of the experimentally determined magnitude of their effect. The two most powerful factors affecting image contrast attainable with sheet film are beam intensity and KV. At that time we had only qualitative evidence for the ranking of enhancing factors. Later we carried out the densitometric measurements which led to the results outlined below.Meaningful evaluations of the cause-effect relationships among the considerable number of variables in preparing EM negatives depend on doing things in a systematic way, varying only one parameter at a time. Unless otherwise noted, we adhered to the following procedure evolved during our comprehensive study:Philips EM-300; 30μ objective aperature; magnification 7000- 12000X, exposure time 1 second, anti-contamination device operating.


2011 ◽  
Author(s):  
Anthony Watt ◽  
Juha Kokkonen ◽  
Maretha Claasen

Author(s):  
Ben Cislaghi

How can we best empower people living in the most economically disadvantaged areas of the world to improve their lives in ways that matter to them? This book investigates work of the NGO Tostan as a working model of human development. The study is grounded in the ethnographic study of the actual change that happened in one West African village. The result is a powerful mix of theory and practice that questions existing approaches to development and that speaks to both development scholars and practitioners. Divided into three parts, the book firstly assesses why top-down approaches to education and development are unhelpful and offers a theoretical understanding of what constitutes helpful development. Part two examines Tostan's community-based participatory approach as an example of a helpful development intervention, and offers qualitative evidence of its effectiveness. Part three builds a model of how community-led development works, why it is helpful, and what practitioners can do to help people at the grassroots level lead their own human development.


2018 ◽  
Vol 40 (1) ◽  
pp. 25-53 ◽  
Author(s):  
David MacInnes

The nature of social organization during the Orcadian Neolithic has been the subject of discussion for several decades with much of the debate focused on answering an insightful question posed by Colin Renfrew in 1979. He asked, how was society organised to construct the larger, innovative monuments of the Orcadian Late Neolithic that were centralised in the western Mainland? There are many possible answers to the question but little evidence pointing to a probable solution, so the discussion has continued for many years. This paper takes a new approach by asking a different question: what can be learned about Orcadian Neolithic social organization from the quantitative and qualitative evidence accumulating from excavated domestic structures and settlements?In an attempt to answer this question, quantitative and qualitative data about domestic structures and about settlements was collected from published reports on 15 Orcadian Neolithic excavated sites. The published data is less extensive than hoped but is sufficient to support a provisional answer: a social hierarchy probably did not develop in the Early Neolithic but almost certainly did in the Late Neolithic, for which the data is more comprehensive.While this is only one approach of several possible ways to consider the question, it is by exploring different methods of analysis and comparing them that an understanding of the Orcadian Neolithic can move forward.


Author(s):  
Luiza Hoga ◽  
Juliana Rodolpho ◽  
Bruna Gonçalves ◽  
Bruna Quirino

Sign in / Sign up

Export Citation Format

Share Document