24,182 research outputs found
Teaching About Magnetism
No full textThis web page, created by author David P. Stern, are the lecture notes for a presentation to middle and high school teachers to help teach magnetism. The lectures includes a brief history of the study of magnetism from its beginnings in ancient Greece and China to the present day, and three classroom demonstrations. This is part of a larger web site on "The Earth's Magnetosphere." Additionally, the author provides links to a glossary and expanded timeline to help better contextualize the theories addressed in these lecture notes
Newton's Laws
No full textAuthored and curated by David P. Stern, this series of web pages, part of "From Stargazers to Starships," describes Newton's three laws of motion and the two concepts on which they are based, force and inertia. The author breaks down the page in this fashion: the concept of force, motion against outside resistance, and motion with significant resistance. The author also provides additional links for further study on the life of Issac Newton. A lesson plan for instructors is also provided
Flight to Mars
No full textCreated by David P. Stern, this set of three web pages provides a calculation of paths, times, and distances for a flight to Mars and back. The author uses a Hohmann transfer ellipse between two circular orbits. This is an example and application of Kepler's Laws, which are explained in related web pages. Only algebra is used with Kepler's laws and the equation for the energy of Kepler motion. This is part of an extensive work, "From Stargazers to Stars that uses space science as an introduction to basic physics principles. Also available in French
Discovery of the Magnetic Compass
No full textFirst of several linked files, telling the early history of the compass (discovered in China) and how Robert Norman in 1581 showed the magnetic force was not horizontal but slanted downwards, followed by William Gilbert's demonstration that the Earth behaved like a giant magnet; two reviews of Gilbert's 1600 book "De Magnete" follow, as well as a modern version of one of Gilbert's experiments. The web collection also includes several sections for science teachers. The page is a subset of a larger collection of articles of the history of magnetism created by author David P. Stern
Ratings of Perceived Exertion-Lactate Association During Actual Singles Tennis Match Play
No full textMendez-Villanueva, A, Fernandez-Fernández, J, Bishop, D, and Fernandez-Garcia, B. Ratings of perceived exertion-lactate association during actual singles tennis match play. J Strength Cond Res 24(1): 165-170, 2010-To examine the relationship between metabolic (i.e., blood lactate concentration) and perceptual (ratings of perceived exertion, RPE) responses and their association with variables describing the characteristics of the singles tennis match play. Eight trained and internationally ranked (Association of Tennis Professionals rankings) male tennis players were studied during singles matches (best of 3 sets) played on an outdoor clay court surface during a professional invitational tournament. Ratings of perceived exertion and blood lactate concentrations were determined at selected changeovers during the game. The variables describing the characteristics of the matches, (a) duration of rallies (DR), (b) rest time, (c) effective playing time, and (d) strokes per rally (SR), were determined from video recordings. Significant correlations (r = 0.57-0.48; p < 0.01) were found for RPE-blood lactate responses during the games. Both RPE and blood lactate concentration values were significantly correlated with SR and DR (r = 0.80-0.61; p < 0.001) in service games. Average RPE was significantly higher (p < 0.05) following service games (13.5 ± 1.9; n = 24) than following receiving games (12.2 ± 2.0; n = 22). Mean blood lactate concentrations were significantly higher (p < 0.05) following service games (4.4 ± 2.4 mmol·L−1; n = 24) than following receiving games (3.0 ± 1.3 mmol·L−1; n = 22). These results indicate that monitoring RPE may be a useful technique for regulating on-court tennis training intensity. Moreover, blood lactate may mediate the relation between RPE and tennis match play intensity
E-book : Industrial Transformation In The Developing World (author: Michael T. Rock & David P. Angel)
No full textArsip Kuliah Online 2010: E-book : Industrial Transformation In The Developing World (author: Michael T. Rock & David P. Angel
E-book : "industrial Transformations In The Developing World (author: Michael T. Rock & David. P Angel)
No full textArsip Kuliah Online 2010: E-book : "industrial Transformations In The Developing World (author: Michael T. Rock & David. P Angel
sj-docx-1-sph-10.1177_19417381221083319 – Supplemental material for The Association Between Chronological Age and Maturity Status on Lower Body Clinical Measurements and Asymmetries in Elite Youth Tennis Players
No full textSupplemental material, sj-docx-1-sph-10.1177_19417381221083319 for The Association Between Chronological Age and Maturity Status on Lower Body Clinical Measurements and Asymmetries in Elite Youth Tennis Players by Alejandro Lopez-Valenciano, Francisco Ayala, Mark B.A. De Ste Croix, David Barbado, Víctor Moreno-Perez, David Sanz-Rivas and Jaime Fernandez-Fernandez in Sports Health: A Multidisciplinary Approach</p
First release of VMStatAnal: a software to support the statistical analysis of variability models
No full text<p>The first release of the C++ implementation of the algorithms described on the paper:</p>
<p>Ruben. Heradio, David Fernandez-Amoros, Christoph Mayr-Dorn, and Alexander Egyed. Supporting the Statistical Analysis of Variability Models. In 41st ACM/IEEE International Conference on Software Engineering (ICSE), Montreal, QC, Canada, 2019.</p>
Cult: A Composite Novel
No full textCult (redacted)
The first component of the thesis is a composite novel called Cult which falls into two parts with seven narratives in each. Part 1 tracks the protagonist, Ellen, from her first involvement with the cult through to her eventually leaving it. Although fiction, the first half of the book answers the kinds of questions the author is asked when people discover that she was once a sannyasin (a follower of the guru Bhagwan Shree Rajneesh). While the experiences of meditation, group therapy and communal living are all faithfully rendered within the stories, the need for strong characters, narrative drive and a lightness of touch takes precedence.
Part 2 picks up Ellen’s story some twenty or so years later and explores what becomes of her in middle age. It also looks at other groups in society, such as academia, the law and the internet dating community which each have their own jargon, hierarchies, rituals and rules but are not considered to be cults.
The book examines the question raised in the Epigraph, ‘how do we be together when we feel so alone’ with a focus on relationships other than the familial and the romantic.
Collisions, Chasms and Connections: a Performative Exploration of the Composite Novel Form
The second part of the thesis is both a critical and creative response to three contemporary American books: Olive Kitteridge by Elizabeth Strout; A Visit from the Goon Squad by Jennifer Egan; and Legend of a Suicide by David Vann. The critical element comprises a close reading of the three books; a chronological reconstruction of their overarching storylines; and a consideration of what their authors have said about writing the books. It concludes that, in the composite novel, the simultaneous presentation of multiple views and storylines operate much like a 3D image to give the impression of depth to the characters and situations rendered. The creative element of the essay is a playful and personal response to the texts
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