Essays eSnips Folder
Essays
Documents I've written on various topics, including Ajax, mathematics, synesthesia, virtual environments / virtual reality, implications of the Internet, presence, motion sickness, vection, cyber-defense, website usability, Parkinson's disease, software development methodology...
jprothero
 
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Tags: ajax , mathematics , synesthesia , memory , psychology , security , vr , virtual , software , political
 
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Jerrold Prothero essays
Posted on Mar. 6 2007
 

Blog: http://jerroldprothero.blogspot.com/ 

 

(As of July, 2009 the below documents are in the top ten Google search results for the terms 'Ajax best practices', 'Ajax usability benefits', 'ambulatory cues', 'anchor effect', 'applied synesthesia', 'background manipulations', 'basal ganglia components', 'basal ganglia disease', 'basal ganglia functionality', 'basal ganglia pathways', 'compelling fables', 'composing epic poetry', 'confirmation phase', 'contrast gradient screen', 'control reversals', 'convenience overshoot', 'cross-over amplitude', 'curvature polynomial', 'customer confusion website', 'display angles', 'dissertation experiment', 'Embedded Figures Test', 'Euler's formula fractional powers', 'Euler's formula functional decomposition', 'Euler's formula Taylor polynomials', 'field of view requirements', 'foreground occlusion', 'general brain anatomy', 'goodness measures', 'Homeric method', 'induced motion measure', 'inertial detection threshold', 'inertial dominance', 'inertial nulling', 'inertial stimuli', 'inside-out displays', 'interface sickness', 'kinesia paradoxa', 'learn synesthesia', 'luning effect', 'methods experiment', 'Malcolm horizon', 'motion sickness presence', 'motor control hierarchy', 'non-dominant eye', 'nulling measures', 'occlusion experiments', 'outside-in displays', 'physiological measures', 'positive boredom', 'presence hypothesis', 'presence manipulations', 'presence measure', 'principles literature', 'psychological measures', 'quantitative experiment', 'quantitative measure', 'quantitative presence', 'reported presence', 'rest frame', 'robust presence', 'rotating chair', 'simulator sickness experiments', 'simulator sickness questionnaire', 'simulator side-effects', 'spatial illusions', 'spatial stabilization', 'sustaining ambulation', 'treatment akinesia', 'ucd rup', 'vection', 'virtual image cues', 'visual background', 'visual foreground', 'visual inertial', and 'visual manipulations'.)

 

Letter to the Financial Times on the financial crisis, evolutionary biology, and government regulation.
(April 21, 2008)
http://www.ft.com/cms/s/0/4dbff6f4-0f3c-11dd-9646-0000779fd2ac.html?nclick_check=1
 
Letter to the Economist on digital security and technology history.
(November 14, 2002)
http://www.economist.com/opinion/displaystory.cfm?story_id=1441631

 

cosh(x/sqrt(2))cos(x/sqrt(2)) = 1 - x^4/4! + x^8/8! - ... 

 

Oa krido le monza - One must believe in the morning.

 

 
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Ajax Usability Benefits and Best Practices 2006.pdf
Rated #2 free Ajax document on the web by Intelligentedu http://www.intelligentedu.com/blogs/post/best_new_training_sites/3562/top-14-free-docs-on-ajax-web-design-and-strategy
By jprothero on Mar. 6 2007
Size: 368.2kb
Source: www.jackbe.com
1024 View(s)
Tags: Ajax , usability , benefits
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Applied Synesthesia 2005.pdf
Method for inducing synesthesia (mixing of the senses), and its application to language learning. Introduced "emotionally-compelling fables" as a framework for understanding human long-term memory.
By jprothero on Mar. 6 2007
Size: 116kb
689 View(s) , "Favorited" by 1 user
Tags: synesthesia , language , psychology , memory , memorization , fables , visualization
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The Political Science of the Internet.pdf
Predictive essay on the political and social consequences of the Internet, based on underlying trends (1996)
By jprothero on Mar. 6 2007
Size: 87.2kb
Source: http://www.hitl.washington.edu
660 View(s)
Communities: Current Affairs
Tags: politics , social , internet , futurology , political , science , nation
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Euler's Formula for Fractional Powers of i.pdf
Introduces an extension of Euler's formula to include fractional powers of i. Generates an infinite family of functions that collectively define an orthogonal basis for the Taylor polynomials. A functional decomposition technique is discussed that is similar to Fourier analysis, but more general in that it provides a balanced view of both periodic and exponential characteristics, and is simpler to compute. Also covers the inner product, identities, curvature, polynomial roots, etc.
By jprothero on Apr. 14 2007
Size: 338.9kb
617 View(s)
Tags: Euler , formula , geometry , taylor , series , algebra , mathematics , curvature , polynomial
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JackBe Application Methodology.pdf
A software development methodology integrating User-Centered Design (UCD) with a light-weight version of the Rational Unified Process (RUP). The goal is to help ensure both that software development targets real user needs, and that it finishes successfully.
By jprothero on May. 31 2007
Size: 285kb
Source: http://www.jackbe.com
429 View(s)
Tags: Software , development , user-centered , design , UCD , RUP , rational , unified , process , iterative
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Cyber Defense 2001.pdf
A strategic approach to national cyber security policy. Introduced the term "convenience overshoot" to describe a recurring pattern of safety failures in the adoption of new technologies.
By jprothero on Mar. 6 2007
Size: 162.6kb
419 View(s)
Tags: cyber , defense , computer , strategic , security , national , policy , information
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Interface Goodness Measures 1994.pdf
Survey of methods to measure the quality of a human-computer interface.
By jprothero on Mar. 6 2007
Size: 116.3kb
Source: www.hitl.washington.edu
348 View(s)
Tags: interface , computer , measure
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Customer Confusion Can Kill a Website 2001.pdf
How to avoid losing a website, product or company from poor usability and product life-cycle management.
By jprothero on Mar. 6 2007
Size: 51kb
314 View(s)
Tags: usability , website , economics , vc , ucd , user-centered , design , software , development , methodology
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The Treatment of Akinesia Using Virtual Images.pdf
Master's thesis (1993). Treating Parkinson's disease akinesia ("freezing") using virtual images displayed in a head-mounted display. The first formal research study to show this approach is viable.
By jprothero on Oct. 28 2007
Size: 379.8kb
Source: http://www.hitl.washington.edu
290 View(s)
Tags: akinesia , treatment , virtual , images , parkinson , disease , hmd , head , mounted , display
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The Role of Rest Frames in Vection, Presence, & Motion Sickness.pdf
Ph.D. dissertation (1998). The psychology of virtual environments. Borrowed from physics to introduce a unified framework for understanding different aspects of spatial perception. Based on the framework, developed an "objective" measure for the sense of "being in" virtual environments, based on sensory conflict; a technique for reducing simulator sickness through visual background manipulations; and a technique for increasing presence with foreground occlusions.
By jprothero on Mar. 5 2007
Size: 725.2kb
Source: www.hitl.washington.edu/publications/r-98-11/
257 View(s)
Tags: Presence , vection , physics , VR , virtual , interfaces , motion , sickness , rest , frame
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Foreground Background Manipulations Affect Presence 1995.pdf
Manipulation of the sense of presence in a virtual environment by altering what appears to be the visual background. Introduced the "rest frame hypothesis" for understanding human spatial perception, since adopted by many researchers.
By jprothero on Mar. 6 2007
Size: 56.5kb
Source: www.hitl.washington.edu
244 View(s)
Tags: presence , VR , virtual , background , hitl , rest , reference , frame
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Do Visual Background Manipulations Reduce Simulator Sickness? 1997.pdf
Introduced the use of visual background manipulations to reduce simulator sickness, a major problem for simulators and electronic games. First use of the phrase "Independent Visual Background." Related patent: USP #6,497,649 (2002) "Alleviating motion, simulator, and virtual environmental sickness by presenting visual scene components matched to inner ear vestibular sensations."
By jprothero on Mar. 6 2007
Size: 28.7kb
Source: http://www.hitl.washington.edu
189 View(s)
Tags: independent , visual , background , simulator , sickness , rest , frame
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The Principles of Literature - 2009.pdf
There are valuable lessons to be learned about literature by repeating the Homeric technique of composing epic poems entirely in memory. This process is described from personal experience.
By jprothero on Jun. 21 2009
Size: 323.7kb
155 View(s)
Communities: Prose , Poetry
Tags: principles , literature , epic , poetry , Homer , memory
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Jerrold Prothero bibliography.pdf
Bibliography through end of 2006
By jprothero on Mar. 6 2007
Size: 29.8kb
151 View(s)
Tags: Prothero , bibliography
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Towards a Robust Quantitative Measure for Presence 1995.pdf
An early, short paper outlining how to measure the sense of presence ("being in") virtual environments effectively, and the relation between presence and other psychological effects such as vection and situation awareness. (There is a more complete discussion in my dissertation.)
By jprothero on Nov. 5 2007
Size: 71.9kb
Source: http://www.hitl.washington.edu
139 View(s)
Tags: presence , vection , virtual , reality , situation , awareness
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