Search results for "Design"
showing 10 items of 5885 documents
Everolimus eluting bioresorbable vascular scaffolds in patients with acute coronary syndromes: Two‐year results from the German‐Austrian ABSORB regis…
2021
Abstract Objectives To identify potential differences in 2‐year outcome between patients who underwent coronary revascularization using bioresorbable vascular scafffolds (BVS) in stable coronary artery disease (CAD) and acute coronary syndromes (ACS). Background Data from randomized trials suggest a significantly higher event rate following coronary revascularization using everolimus‐eluting BVS as compared to new generation drug eluting stents. Whether particular patient subgroups are at increased risk for scaffold thrombosis and target lesion failure (TLF) has not clearly been demonstrated. Methods German‐Austrian ABSORB RegIstRy is a prospective all‐comer multi‐center observational study…
Sampling Design in SHARE Wave 8 and Recruitment of Refreshment Samples until the Suspension of Fieldwork
2022
The aim of the SHARE survey design is to be able to draw inferences about the population of people aged 50 years or older across countries by using probability-based sampling. This chapter documents the sampling design adopted in the eighth wave of SHARE that had to be suspended due to COVID-19 in March 2020. Starting with a definition of the SHARE target population, we describe the protocol for harmonizing and documenting the sampling procedure and present the sampling frames used by the countries that recruited a baseline or refreshment sample in Wave 8. We then discuss some important aspects of the SHARE sampling designs, such as stratification, clustering, variation in selection probabi…
A probabilistic condensed representation of data for stream mining
2014
Data mining and machine learning algorithms usually operate directly on the data. However, if the data is not available at once or consists of billions of instances, these algorithms easily become infeasible with respect to memory and run-time concerns. As a solution to this problem, we propose a framework, called MiDEO (Mining Density Estimates inferred Online), in which algorithms are designed to operate on a condensed representation of the data. In particular, we propose to use density estimates, which are able to represent billions of instances in a compact form and can be updated when new instances arrive. As an example for an algorithm that operates on density estimates, we consider t…
Tasks for enriching the understanding of the concept of linear span
2018
International audience; The concept of linear span is one of the first abstract notions that students encounter in a course on Linear Algebra. Using the theoretical construct of concept image and concept definition (Tall & Vinner, 1981) along with observations about teaching and learning Linear Algebra, we present two tasks designed to enrich students' concept image regarding linear span. These tasks could be included in a problem workshop of an introductory university course on Linear Algebra. Each task is carefully created and/or selected so as to foster the ground for potential conflict factors to arise and be confronted. A preliminary evaluation shows that the tasks are well received by…
Testing relations between group cohesion and satisfaction in project teams: A cross-level and cross-lagged approach
2014
Based on a two-dimensional perspective of group cohesion, this study examines the emergence of task cohesion and interpersonal cohesion in project teams and their roles in changes in members’ individual satisfaction with the team. Specifically, we tested a direct-effect and mediation model of the cross-level relationship between team task and interpersonal cohesion and individual satisfaction with the team over time. With a sample of 74 newly created project teams, the hypotheses were tested using a two-wave panel design. Results indicate that task cohesion emerges more strongly than interpersonal cohesion during the first stages of work in project teams. Moreover, the cross-lagged relation…
Team climate, climate strength and team performance: a longitudinal study
2009
We tested the hypothesis that the relationship between team climate and team performance is moderated by climate strength. The study sample was composed of 155 bank branches, and a two-wave panel design was implemented. We measured four team climate facets (support, innovation, goal achievement and enabling formalization). We obtained two subjective indicators of team performance (ratings provided by team members and by team managers) and a financial indicator of team performance. Seven out of the 12 interaction effects tested were statistically significant and showed the expected sign. When financial team performance was the criterion, only the interaction term was significant. This sugges…
Facilitating organisational learning through teamwork-based knowledge management: evidence from Spain
2015
[EN] In the context of organisational learning optimisation through knowledge management policies, it is essential to pay careful attention to teamwork design and dynamics. Having these ideas in mind, the aim of our paper is to empirically study whether a number of knowledge management policies related to team design and dynamics facilitate organisational learning processes across the different ontological levels (individual, group, and organisational-institutional). Hence, we propose a model linking teamwork-design based on knowledge management policies (including the sub-dimensions of team composition, team bonding, and team bridging) and organisational learning. We test this model in a s…
A Teaching Laboratory in Analog Electronics: Changes to Address the Bologna Requirements
2008
Training new electronics engineers presents several major challenges. This paper proposes a new approach for practical lessons in second-level analog electronics, where students get a closer view of real-world practices in electronic engineering. The authors describe and evaluate a more dynamic way of teaching practical lessons in analog electronics in the first year of an electronic engineering degree. The method consists of creating a virtual company that contracts students to develop prototypes. The design process involves theoretical concepts from the students' lessons, and poses challenges with respect to costs and teamwork. The method brings the students closer to the working environm…
Incorporating Sustainability and Green Design Concepts into Engineering and Technology Curricula
2016
Human society is facing an uncertain future due to the present day unsustainable use of natural resources and the growing imbalance with our natural environment. Sustainability is an endeavour with uncertain outcomes requiring collaboration, teamwork, and abilities to work with respect and learn from other disciplines and professions, as well as with governments, local communities, political and civic organizations. The creation of a sustainable society is a complex and multi-stage endeavour that will dominate twenty first century. Sustainability has four basic aspects: environment, technology, economy, and societal organization. Schools with undergraduate engineering or engineering techno…
De‐bureaucratising organisational culture at a public university: A mixed‐method study of the implementation of a liberal arts programme
2020
Artykuł przedstawia analizę procesu zaprojektowania i zaimplementowania nowego programu studiów Liberal Arts w polskiej uczelni publicznej. Studium implementacji tego in-nowacyjnego rozwiązania zostało oparte na różnych meto-dach badawczych, jak analiza sieci aktorów, analiza dyskursu i etnografia. W artykule zidentyfikowano aspekty kultury organizacyjnej uczelni publicznej ułatwiające wprow-adzenie nowego programu studiów. Analiza dotyczyła trzech płaszczyzn funkcjonowania uczelni jako organizacji „uczącej się”: (1) relacji władzy i odpowiedzialności (styl przywództwa) podczas kreowania innowacji instytucjon-alnej, (2) (nie)formalnych norm i praktyk komunikacyjnych zapewniających ewolucję …