The paper discusses some problems of finding and qualitative investigation of diverse-level invariant manifolds of mechanical systems having first algebraic integrals. The proposed scheme of the investigation is mainly oriented to employing computer algebra. A problem of motion of a mechanical...

During recent decades numerous feminist scholars have scrutinized the two-sex model and questioned its status in Western societies and medicine. Along the same line, increased attention has been paid to individuals' experiences of atypical sex development, also known as intersex or ‘disorders...

The derived structural estimates of the system βY=γZ+δU impose identifying restrictions on the reduced form estimates ex post. Some or all of the derived structural estimates are presented as evidence of the model's efficacy. In fact, the reduced form inherits a great deal of information from...

The authors of the paper together with their colleagues have developed and applied a software complex based on the computer algebra system (CAS) “Mathematica” [S. Wolfram, Mathematica: A System for Doing Mathematics by Computer, Addison-Wesley, Reading, MA, 1988], which allows to model...

Successful sustainable land management efforts rely on stakeholder support and integration of stakeholder knowledge. This study explored the views of sustainable land management expressed by land use stakeholders and how these views contribute to land users’ self-perceptions. We examined...

The evaluation of interventions is becoming increasing common and now often seeks to involve managers in the process. Such practical participatory evaluation (PPE) aims to increase the use of evaluation results through the participation of stakeholders. This study focuses on the propensity of...

In recent years, a few health economists have begun to question the ethical underpinnings of the standard practice of QALY maximisation as a ubiquitous decision rule in the allocation of health care resources. Prominent among these is Erik Nord, who conjectures that QALY maximisation...

HIV-positive refugees confront a variety of challenges in accessing and adhering to antiretroviral therapy (ART) and attaining durable viral suppression; however, there is little understanding of what these challenges are, how they are navigated, or how they may differ across humanitarian...

Recently, Chinese carriers entered the Australia–Europe route, a market currently served by several established airlines. The paper aims to explore and identify the contextual factors affecting the choice of China-based carriers for long-haul travel. The paper's innovation is in the way...

</titre> This paper studies the impact of social networks on the resilience of micro and small entrepreneurs of the informal urban Africa. It is based on an original method of analysis of life stories mixing qualitative and quantitative approaches. The study shows the effect of network composition on...