A model circulatory system for use in undergraduate physiology laboratories.

1999 ◽  
Vol 277 (6) ◽  
pp. S92 ◽  
Author(s):  
A M Smith
Keyword(s):  
Fluid Velocity ◽  
Circulatory System ◽  
Vessel Diameter ◽  
Model System ◽  
Heart Activity ◽  
Cardiovascular Fluid Dynamics ◽  
Hands On ◽  
Reasonable Cost ◽  
Quantitative Results ◽  
Laboratory Experiences

The cardiovascular system is a central topic in physiology classes, yet it is difficult to provide undergraduates with quality laboratory experiences in this area. Thus a model circulatory system was developed to give students hands-on experience with cardiovascular fluid dynamics. This model system can be constructed from readily available materials at a reasonable cost. It has a realistic pressure drop across the different vessels. Using this system, students can investigate the effect that blood volume, vessel compliance, vessel construction, and heart activity have on blood pressure and flow. The system also demonstrates the effect of vessel diameter on resistance and fluid velocity. This model may give students a more concrete, intuitive feel for cardiovascular physiology. Another advantage is that it allows dramatic and easily controlled manipulations with quantitative results. Finally, its simple construction allows students to interchange components, giving them greater flexibility in experimentation.

An Evaluation of Students’ Practical Intelligence and Ability to Diagnose Equipment Faults

2012 ◽  
pp. 328-349 ◽  
Author(s):  
Zol Bahri Razali ◽  
James Trevelyan
Keyword(s):  
Engineering Students ◽  
Practical Knowledge ◽  
Empirical Studies ◽  
Engineering Practice ◽  
Practical Intelligence ◽  
Laboratory Equipment ◽  
Outcome Based Education ◽  
Hands On ◽  
Laboratory Experiences ◽  
Intelligence Scores

Empirical studies suggest that practical intelligence acquired in engineering laboratories is valuable in engineering practice and could also be a useful learning outcome that is a result from a laboratory experience. To prove this, the author started a project to understand further about the practical learning outcomes from traditional laboratory classes. When tools used by psychologists were applied to measure practical intelligence in an electronics laboratory class, not only could a significant gain in hands-on practical intelligence be measured, but students’ ability to diagnose equipment faults could also be predicted. For the first time, therefore, the author can demonstrate that there are real advantages inherent in hands-on laboratory classes, and supported by Outcome Based Education (OBE) method, it is possible to measure this advantage. It is possible that measurements of practical intelligence may reveal new and more powerful ways for students to acquire practical knowledge. The results firstly demonstrate the ability to devise effective ways to assess the outcomes of practical intelligence acquired by engineering students from their laboratory experiences. The results from the study show that the score on practical intelligence outcomes is proportional with the outcomes of the ability in diagnosing equipment faults. Therefore, the novel results suggest that practical intelligence scores predict the ability to diagnose experiment faults for similar laboratory equipment.

Conclusion

2019 ◽  
pp. 275-294
Author(s):  
Daniel Beunza
Keyword(s):  
Moral Disengagement ◽  
Wall Street ◽  
Personal Evaluation ◽  
Face To Face ◽  
The Social ◽  
Hands On ◽  
Organizational Norms ◽  
Quantitative Results ◽  
Emerging Themes

This concluding chapter brings together the emerging themes of the book into an overarching framework. It considers integration, organizational norms, judgment, moral disengagement, and the breakup of Wall Street banks. The chapter proposes the concept of proximate control, a hands-on approach to management that stands in contrast to what governmentality scholars such as Peter Miller and Nikolas Rose have called “government at a distance.” Proximate control calls for better supervision of quantitative traders by resisting the temptation to evaluate those employees using models. It entails a combination of the social and the technological, such as preserving face-to-face interaction on the trading floor, the use of personal evaluation of quantitative results, or the qualitative judgment of financial calculations.

Physiological Pharmacokinetic Models: Some Aspects of Theory, Practice and Potential

1988 ◽  
Vol 4 (2) ◽  
pp. 151-171 ◽  
Author(s):  
Richard W. D'souza ◽  
Harold Boxenbaum
Keyword(s):  
Circulatory System ◽  
Model System ◽  
Pharmacokinetic Models ◽  
Deep Insight ◽  
Pharmacokinetics And Pharmacodynamics ◽  
Pharmacodynamic Response ◽  
Physiological Models ◽  
And Behavior ◽  
High Degree ◽  
Insight Into

Models are intellectual constructs that pattern selected relationships among the elements of one system to correspond in some way to elements of a second system. In pharmacokinetics, physiological models provide a clearly articulated, rational, explanatory basis for the integration of empirical data; they do this by partitioning the biological system into relevant components (tissues, organs, etc.) and linking them together through the circulatory system. Unlike conventional mammillary compartment models, there is a clear correspondence between model system elements and physiological entities. By virtue of their high degree of physical and biochemical relevance, these models can help provide deep insight into structure, function and mechanism. Pharmacokinetic (and potentially pharmacodynamic) response-time relationships can thus be understood in terms of interconnections and behavior of constituent subsystems. At their worst, these models provide stale or infertile views of reality and thus frustrate and alienate us with the triviality of their insights. At their best, they allow us to understand the accumulation of thought in pharmacokinetics and pharmacodynamics, and help with the integration of data and improvement of experimental design.

scholarly journals COMPARING LIFE CYCLE IMPACT ASSESSMENT, CIRCULARITY AND SUSTAINABILITY INDICATORS FOR SUSTAINABLE DESIGN: RESULTS FROM A HANDS-ON PROJECT WITH 87 ENGINEERING STUDENTS

2021 ◽  
Vol 1 ◽  
pp. 681-690
Author(s):  
Michael Saidani ◽  
Mariia Kravchenko ◽  
François Cluzel ◽  
Daniela Pigosso ◽  
Yann Leroy ◽  
...  
Keyword(s):  
Life Cycle ◽  
Engineering Students ◽  
Environmental Indicators ◽  
Sustainability Indicators ◽  
Sustainability Performance ◽  
Hands On ◽  
Quantitative Results ◽  
Traditional Approaches ◽  
Shed Light ◽  
Do So

AbstractConsidering a growing number of metrics and indicators to assess circular economy, it is of paramount importance to shed light on how they differ from traditional approaches, such as life cycle assessment (LCA) or sustainability performance indicators. This study provides new empirical insights on the correlation between LCA, circularity, and sustainability indicator-based approaches. Specifically, the importance lies in analyzing how the results generated by these different approaches can be used to support the design of products that are not only circular, but also sustainable. A practice-based project involving 87 engineering students (divided into 20 groups) is conducted with the aim to compare and improve the circularity and sustainability performance of three product alternatives of lawn mowers (gasoline, electric, autonomous). To do so, the following resources are deployed: 18 midpoints environmental indicators calculated by LCA, eight product circularity indicators, and numerous leading sustainability indicators. Critical analyses on the usability, time efficiency, scientific soundness, and robustness of each approach are drawn, combining quantitative results generated by each group with the feedback of future engineers.

scholarly journals Authentic Student Laboratory Classes in Science Education

2018 ◽  
Author(s):  
Jurgen Schulte
Keyword(s):  
Learning Experience ◽  
Student Interactions ◽  
Minimum Requirement ◽  
Teacher Student ◽  
Laboratory Class ◽  
Hands On ◽  
Science Laboratories ◽  
Industry Engagement ◽  
Student Laboratory ◽  
Laboratory Experiences

The traditional hands-on nature in science laboratory classes creates a sense of immediacy and presence of authenticity in such learning experiences. The handling of physical objects in a laboratory class and the immediate responses provided by the experiments are certainly real-live observations, yet may be far from instilling an authentic learning experience in students. This paper explores the presence of authenticity in hands-on laboratory classes in introductory science laboratories. With our own laboratory program as backdrop we introduce four general types of hands-on laboratory experiences and assign degrees of authenticity according the processes and student engagement associated with them. In that course, we present a newly developed type of hands-on experiment which takes a somewhat different view of the concept of hands-on in a laboratory class. A proxemics-based study of teacher-student interactions in the hands-on laboratory classes presents us with some insights into the design of the different types of laboratory classes and the pedagogical presumptions we made. A step-by-step guide on how to embed industry engagement in the curriculum and the design of an authentic laboratory program is presented to highlight some minimum requirement for the sustainability of such program and pitfalls to avoid.

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