نتایج جستجو برای: research design

تعداد نتایج: 2168191  

2006
Rama B. Radhakrishna

Competitive events are a major component of 4-H programs in the United States. Each year hundreds of youth participate in 4-H competitive events. Literature on competitions indicates both positive and negative effects on participants. The purpose of this study was to determine the educational value of 4-H competitive events as perceived by parents of 4-H participants. A secondary purpose was to...

2014
Nerida Hyett Amanda Kenny Virginia Dickson-Swift

Despite on-going debate about credibility, and reported limitations in comparison to other approaches, case study is an increasingly popular approach among qualitative researchers. We critically analysed the methodological descriptions of published case studies. Three high-impact qualitative methods journals were searched to locate case studies published in the past 5 years; 34 were selected fo...

2015
Sónia R. Cardoso Ana Paula Barbosa-Póvoa Susana Relvas Augusto Q. Novais

The design and planning of resilient supply chains is a major challenge due to the increasing complexity of these systems that operate in a global market and therefore are more exposed to disruptions. In the present work a design and planning model that integrates demand uncertainty is applied to five supply chain structures that are submitted to different types of disruptions. Disruptions are ...

2002
Maria MELETIOU-MAVROTHERIS

The paper describes how the transformative and conjecture-driven research design, a research model that utilizes both theory and common core classroom conditions, was employed in a study examining introductory statistics students’ understanding of the concept of variation. It describes how the approach was linked to classroom practice and was employed in terms of research design, data collectio...

2005
Henrik Jansson Håkan Hjalmarsson

In this contribution we extend a recently developed framework for open loop input design to closed loop experiment design. More specifically, for the very common situation of a fixed controller during the identification experiment, the framework is extended to the design of an optimal reference signal spectrum and also to cope with closed loop signal constraints. In a further extension also the...

2010
Daniel Fallman Erik Stolterman

Interaction design research has rapidly evolved into a unique discipline embracing practicing professionals, design educators, and academic researchers. As with many evolving disciplines, attracting attention from a large number of people with different backgrounds, interests, and ways of seeing tends to cause ‘disciplinary anxiety’, which inevitably leads to the question of what constitutes ‘g...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1389

abstract: country’s fiber optic network, as one of the most important communication infrastructures, is of high importance; therefore, ensuring security of the network and its data is essential. no remarkable research has been done on assessing security of the country’s fiber optic network. besides, according to an official statistics released by ertebatat zirsakht company, unwanted disconnec...

Journal: :The Australasian medical journal 2013
Joyce Thomas Deana McDonagh

This paper explores the role of empathy within new product development from the perspective of human-centred design. The authors have developed a range of empathic design tools and strategies that help to identify authentic human needs.For products and services to be effective, they need to satisfy both functional and emotional needs of individuals. In addition, the individual user needs to fee...

2003
Alison Carr-Chellman Michael Savoy Francis Bacon

The purpose of this chapter is to describe the state of research and theory in the area of user design in instructional and informational sciences. In recent decades the importance of the learner and user has increased considerably. However, a comprehensive consideration of the underlying theories that contribute to user design as a construct, as well as a careful explication of the research th...

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