5,179 research outputs found
PC Beanie
No full textNavy and Gold felt beanie with PC cutout letters. Navy blue small visor.https://digitalcommons.georgefox.edu/museum_gfu/1084/thumbnail.jp
PC-CUBE: A Personal Computer Based Hypercube
No full textPC-CUBE is an ensemble of IBM PCs or close compatibles connected in the hypercube topology with ordinary computer cables. Communication occurs at the rate of 115.2 K-band via the RS-232 serial links. Available for PC-CUBE is the Crystalline Operating System III (CrOS III), Mercury Operating System, CUBIX and PLOTIX which are parallel I/O and graphics libraries. A CrOS performance monitor was developed to facilitate the measurement of communication and computation time of a program and their effects on performance. Also available are CXLISP, a parallel version of the XLISP interpreter; GRAFIX, some graphics routines for the EGA and CGA; and a general execution profiler for determining execution time spent by program subroutines. PC-CUBE provides a programming environment similar to all hypercube systems running CrOS III, Mercury and CUBIX. In addition, every node (personal computer) has its own graphics display monitor and storage devices. These allow data to be displayed or stored at every processor, which has much instructional value and enables easier debugging of applications. Some application programs which are taken from the book Solving Problems on Concurrent Processors (Fox 88) were implemented with graphics enhancement on PC-CUBE. The applications range from solving the Mandelbrot set, Laplace equation, wave equation, long range force interaction, to WaTor, an ecological simulation
Lapel Pin
No full textCelluloid lapel button with picture of Pacific College. Letters PC and Newberg on front, Pat. July 24, 1900.https://digitalcommons.georgefox.edu/museum_gfu/1040/thumbnail.jp
A PC parallel port button box provides millisecond response time accuracy under Linux
No full textFor psychologists, it is sometimes necessary to measure people's reaction times to the nearest millisecond. This article describes how to use the PC parallel port to receive signals from a button box to achieve millisecond response time accuracy. The workings of the parallel port, the corresponding port addresses, and a simple Linux program for controlling the port are described. A test of the speed and reliability of button box signal detection is reported. If the reader is moderately familiar with Linux, this article should provide sufficient instruction for him or her to build and test his or her own parallel port button box. This article also describes how the parallel port could be used to control an external apparatus
Australian PC-6 Porter
No full textAustralian PC-6 Porter. Left to right: James Dodds, Wing Commander Rindle, and Al Fox
Cerebral atrophy in mild cognitive impairment and Alzheimer disease: rates and acceleration.
No full textOBJECTIVE: To quantify the regional and global cerebral atrophy rates and assess acceleration rates in healthy controls, subjects with mild cognitive impairment (MCI), and subjects with mild Alzheimer disease (AD). METHODS: Using 0-, 6-, 12-, 18-, 24-, and 36-month MRI scans of controls and subjects with MCI and AD from the Alzheimer's Disease Neuroimaging Initiative (ADNI) database, we calculated volume change of whole brain, hippocampus, and ventricles between all pairs of scans using the boundary shift integral. RESULTS: We found no evidence of acceleration in whole-brain atrophy rates in any group. There was evidence that hippocampal atrophy rates in MCI subjects accelerate by 0.22%/year2 on average (p = 0.037). There was evidence of acceleration in rates of ventricular enlargement in subjects with MCI (p = 0.001) and AD (p < 0.001), with rates estimated to increase by 0.27 mL/year2 (95% confidence interval 0.12, 0.43) and 0.88 mL/year2 (95% confidence interval 0.47, 1.29), respectively. A post hoc analysis suggested that the acceleration of hippocampal loss in MCI subjects was mainly driven by the MCI subjects that were observed to progress to clinical AD within 3 years of baseline, with this group showing hippocampal atrophy rate acceleration of 0.50%/year2 (p = 0.003). CONCLUSIONS: The small acceleration rates suggest a long period of transition to the pathologic losses seen in clinical AD. The acceleration in hippocampal atrophy rates in MCI subjects in the ADNI seems to be driven by those MCI subjects who concurrently progressed to a clinical diagnosis of AD
[Fort Worth & Denver City, Chair Car 400, 'Silver Fox']
No full textNegative sleeve: 82:232:18577; [typed] Fort Worth & Denver City, PC 400, 'Silver Fox' [Everett DeGolyer, Jr.'s Notes] Passenger Car 'Silver Fox', Fort Worth & Denver Railway, No. 400, Excellent, HW, 232:18577, 2 1/4 x 2 1/4 - 3/4 view, coupled. Weeds. No. 400 'Silver Fox' Chair car, stainless, air conditioned, Budd Company November 1937. Held for conversion to Maintenance of Way service, still there August 1975, Childress, Texas, August 1974, Everett L. DeGolyer, Jr
Millisecond accuracy video display using OpenGL under Linux
No full textTo measure people’s reaction times to the nearest millisecond, it is necessary to know exactly when
a stimulus is displayed. This article describes how to display stimuli with millisecond accuracy on a
normal CRT monitor, using a PC running Linux. A simple C program is presented to illustrate how this
may be done within X Windows using the OpenGL rendering system. A test of this system is reported
that demonstrates that stimuli may be consistently displayed with millisecond accuracy. An algorithm
is presented that allows the exact time of stimulus presentation to be deduced, even if there are relatively
large errors in measuring the display time
Frontmatter (Titlepage, Table of Contents, Author List, PC List, Reviewer List)
No full textFront matter including table of contents, author list, PC list, and reviewer list
Demon girl power: Regimes of form and force in videogames primal and Buffy the Vampire Slayer
No full text'There's nothing like a spot of demon slaughter to make a girl's night'. Since the phenomenal success of the Tomb Raider (1996) videogame series a range of other videogames
have used carefully branded animated female avatars. As with most other media, the game industry tends to follow and expand on established lucrative formats to secure an established market share. Given the capacity
of videogames to create imaginary worlds in 3D that can be interacted with, it is not perhaps surprising that pre-established worlds are common in videogames, as is the case with Buffy the Vampire Slayer (there are currently three videogames based on the cult TV show 2000-2003), but in other games worlds have to be built from scratch, as is the case with Primal (2003). With the mainstream media's current romance with kickass action heroines, the advantage of female animated game avatars is their potential to broaden the appeal of games across genders. This is however a double-edged affair: as well as appealing to what might be a termed a post-feminist market, animated forms enable hyper-feminine proportions and impossible vigour.
I argue that becoming demon - afforded by the plasticity of animation – in these games troubles the representational qualities ordinarily afforded to female avatars in videogames. But I also argue that theories of representation are insufficient for a full understanding of the formal particularities of videogames and as
such it is crucial to address the impact of media-specific attributes of videogames on the interpellation of players into the game space and the way that power regimes are organised. While theories of gender representation can go someway towards understanding the ideological construction of game characters, they
are not developed sufficiently to accommodate the particular nature of player participation intrinsic to playing digital games. The fact that players are interpolated into the game worlds of the Buffyverse and Primal in ways quite different to other media forms is significant and I offer the concept of 'being-in-the-world-of-thegame'
to illustrate how theories of representation alone are not sufficient to the task of analysing videogame forms. This paper focuses on the ways in which the interactive and spatial features of videogame formats affect narrative structure, characterisation and themes (particularly agency and power) and I argue that an address of the ways that videogames operate structurally is essential if we are to understand how they take
animation into the realms of interactivity and how videogames generate meaning and pleasure
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