The approximate frequency response of semi-active systems requiring no computer     

Donald L. Margolis 《Journal of The Franklin Institute》1983,316(3):261-271

Semi-active systems are those in which a passive, dissipative element (damper, friction clutch, fluid orifice) is modulated, via low power inputs, to enhance the performance of its associated dynamic system. This type of control is inherently nonlinear, thus forcing the closed-loop response of the total system to be determined numerically using a digital computer. Although, strictly speaking, the frequency response for nonlinear systems does not exist, it is typical to simulate semi-active systems with sinusoidal input and present results as frequency transmissibilities. This paper uses energy dissipation per cycle to determine an approximate frequency response of semi-active systems requiring only a calculator for numerical analysis.  相似文献   

A semester-long student-directed research project involving enzyme immunoassay: appropriate for immunology, endocrinology, or neuroscience courses     

Ramos Goyette S  DeLuca J 《CBE life sciences education》2007,6(4):332-342

The following project aimed at promoting integrated and long-lasting learning is described for an Immunology course, but it may be adapted to other disciplines. Students were asked to develop and carry out a research project to examine the relationship between immune function and stress. The experiments were required to include the assessment of salivary cortisol and salivary IgA (sIgA) with enzyme immunoassays. All other aspects of the experiments were developed by student groups with appropriate guidance from the instructor. Data are presented for one group project that assessed the effect of music on cortisol and sIgA. Overall levels of sIgA and cortisol were consistent with reported values. Students found a significant decrease in cortisol over time. Additionally, there was a trend that supported the overall student hypothesis regarding the effect of stress and immune function. Compared with the same Immunology course that included an instructor-designed experiment using enzyme immunoassays for cortisol and sIgA, several assessments (e.g., final grades and comments on student evaluations) show that overall learning seemed to be much better in the course with the student-directed research project.  相似文献   

Wendell Berry on Education: A Cultural Inheritance of Care     

Jane M. Schreck 《Educational Studies A Journal of the American Educational Studies Association》2019,55(3):315-326

Although recognized for his wisdom on issues of agriculture, ecology, economics, and theology, writer Wendell Berry has been largely ignored for his thinking on education. Yet the same good sense and clear thinking that he applies to other areas of thought can be seen also in his writings on education. This article reviews what scholars have observed about Berry’s ideas on education, and then contextualizes his thinking through a comparison with two giants of educational theory: John Dewey and Paulo Freire. Berry’s local focus and his emphasis on community and the ecosphere create a vision for education that could lead to a healthier, more peaceable world.  相似文献   

Undergraduate Medical Students' Usage and Perceptions of Anatomical Case-Based Learning: Comparison of Facilitated Small Group Discussions and eLearning Resources     

Jane C. Holland  Teresa Pawlikowska 《Anatomical sciences education》2019,12(3):245-256

While case-based discussions can empower students to apply knowledge to contextual clinical situations, scheduling these activities is a challenge in crowded curricula. Case-based eLearning activities, derived from existing cases discussed within anatomy small group tutorials, were created incorporating principles such as interactivity, reinforcement, and feedback. Over half of the students accessed one or more of these online cases, with 18% accessing all eight online cases provided. Access increased as the semester progressed, particularly just before summative examinations, implying students used these primarily as revision aides. Students rated both formats highly, but favored the online format with regard to enjoyment (P = 0.048), learning (P = 0.101), and feedback (P = 0.086). However, more students discussed these cases in small group tutorials within the anatomy dissecting room than completed them online (122 vs. 67) and themes emerging from free text comments included a desire to have more time dedicated to these cases during small group tutorials, and an appreciation for the opportunity for discussion with staff and learning through doing. Additionally, native English speakers rated the anatomy room discussions significantly higher in all aspects than non-native English speakers, suggesting that non-native speakers may be hesitant or reluctant to fully participate in front of peers. While online case-based learning activities are a useful adjunct to anatomy teaching, particularly for revision, assumptions that “digital natives” have an innate preference for digital resources require critical evaluation, as students still place a high value on opportunities for discussion with staff during their studies.  相似文献   

Bringing computer training to rural areas     

Jane Barber 《Open Learning》2013,28(2):46-49

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Shena D. Simon and English education policy: inside/out?     

Jane Martin 《History of education》2013,42(5):477-494

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Writing for Social Scientists: How to Start and Finish Tour Thesis,Book, or Article.     

Sharon ABBEY Bev BAILEY  Jane Dubrick  Kathleen Moore  Joyce Nyhof-YOUNG  Erminia Pedretti  Ron Saranchuk 《International journal of qualitative studies in education》2013,26(1):101-102

Underlined by the belief that teachers' critical awareness of their actions is a vital issue in education, this study examines the insights that evolved from a long-term collaboration among seven doctoral students. To prepare for our comprehensive examinations, we collaborated as a study group for one and one-half years. Adopting the dual roles of listener-researcher and narrator-participant, we engaged in dialogue and narrative to convey to each other the meaning of our collaborative experiences. From grounded theory analysis, four elements of collaboration emerged: logistics, social dynamics, empowerment, and change. In order to convey the meaning of our experiences, we create a multiplicity of meanings based on our diverse and lived personal narratives. Finally, our collaborative process challenges academic administrations to examine how well their current policies encourage personal autonomy and cooperative learning approaches for students involved in preparing for their comprehensive examinations.  相似文献   

Beyond access: special education in America     

Lani Florian  Jane West 《欧洲特需教育杂志》2013,28(2):124-132

ABSTRACT

This paper seeks to examine the parallels between many aspects of conductive education and the conceptual framework of Feuerstein's theory of mediated learning. Conductive education is not a treatment administered to remedy some pathology, as is the case with many therapies, but rather a system of education aimed at developing the whole individual. How this process is achieved may be enlightened by reference to Feuerstein's model of mediated learning experience (MLE). Two key aspects of Feuerstein's theory are examined: first, structural cognitive modifiability (SCM), which maintains that every individual's cognitive structures are capable of modifiability, despite barriers of retardation ‐ very much in line with modern neuroscience and its model of the brain as a plastic and adaptable system; and secondly, mediation (MLE), which is the process whereby a more initiated individual acts as a mediator between culture and child and thereby directs the child into preparing an adequate response. A detailed examination with exemplars is then undertaken into the mediation of many different aspects of development, including the three essential mediation processes of intentionality and reciprocity, transcendence and meaning. Finally, the implications of Feuerstein's theory for models of research and evaluation are considered, particularly the need for more qualitative and interactional approaches which maintain ecological validity.  相似文献   

BOOK REVIEW     

Jane Robertson 《International Journal for Academic Development》2013,18(1):79-81

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Understanding pathological demand avoidance syndrome in children     

Jane Sinson 《Educational Psychology in Practice》2013,29(4):441-442

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