Exoskeleton Solutions to Bone and Muscle Atrophy Within Microgravity Environments
V. Tiruvadi and C. Lessard
Weakening of muscle and bone tissue after merely a week of exposure to a microgravity environment has been demonstrated to adversely affect the physiological health of astronauts . Innovative solutions meant to replace traditionally bulky resistance-based devices are highly sought by burgeoning priv ... [J. Med. Devices 3, 027540 (2009)] published Thu Jul 9, 2009.
Science and Human Life
J. A. V. Butler and R. Bruce Lindsay
Abstract not available. [Phys. Today 11, 32 (2009)] published Wed Jan 14, 2009.
Physics and life prolongation
Gerald Feinberg
SCIENCE AND TECHNOLOGY in the 20th century have made real many dreams of men in earlier ages. Among these are transmutation of elements and manned space flight. Another dream of many men in different places and times, that of elimination of aging and death, remains unfulfilled by us. Scientists who ... [Phys. Today 19, 45 (2009)] published Wed Jan 14, 2009.
Le Signal du Sourcier
Y. Rocard and D. J. Montgomery
Abstract not available. [Phys. Today 17, 54 (2009)] published Wed Jan 14, 2009.
Physics of Plant Environment
W. R. Van Wijk and Joseph G. Hoffman
Abstract not available. [Phys. Today 17, 76 (2009)] published Wed Jan 14, 2009.
Mechanical Man: The Physical Basis of Intelligent Life
Dean E. Wooldridge and Sanborn C. Brown
Abstract not available. [Phys. Today 21, 89 (2009)] published Wed Jan 14, 2009.
Code of Ethics for the American Association of Physicists in Medicine: Report of Task Group 109
Christopher F. Serago, Nabil Adnani, Morris I. Bank, Jose A. BenComo, Jun Duan et al.
A comprehensive Code of Ethics for the members of the American Association of Physicists in Medicine (AAPM) is presented as the report of Task Group 109 which consolidates previous AAPM ethics policies into a unified document. The membership of the AAPM is increasingly diverse. Prior existing AAPM e ... [Med. Phys. 36, 213 (2008)] published Mon Dec 22, 2008.
Binary and multi-category ratings in a laboratory observer performance study: A comparison
David Gur, Andriy I. Bandos, Jill L. King, Amy H. Klym, Cathy S. Cohen et al.
The authors investigated radiologists, performances during retrospective interpretation of screening mammograms when using a binary decision whether to recall a woman for additional procedures or not and compared it with their receiver operating characteristic (ROC) type performance curves using a s ... [Med. Phys. 35, 4404 (2008)] published Thu Sep 11, 2008.
Elastic and contractile properties of muscle
Willem Klip
The introduction of a special class of materials, called ''contractile'' into nonlinear continuum mechanics to represent muscular tissue is suggested and the general constitutive equation is given. For application to different muscles, transversely isotropic contractile material is considered, and f ... [J. Appl. Phys. 47, 3341 (2008)] published Thu Aug 28, 2008.
Application of nonlinear stability theory to the study of the effects of diffusion on predator-prey interactions
Lee A. Segel and Simon A. Levin
In the basic predator-prey model under investigation, growth rates of both species are influenced by both predator and prey population levels. Random dispersal is modelled by diffusion-like terms in both discrete and continuous situations. Application of a combined successive-approximations multiple ... [AIP Conf. Proc. 27, 123 (2008)] published Mon Jul 7, 2008.
Periodic orbit analysis demonstrates genetic constraints, variability, and switching in Drosophila courtship behavior
Ruedi Stoop and Benjamin I. Arthur, Jr.
We use symbolic dynamics to describe Drosophila courtship communication. We posit that behavior should be defined in terms of irreducible periodic orbits of fundamental acts. This leads to a first operational definition of behavior, which allows for a fine grained quantitative analysis of behavior. ... [Chaos 18, 023123 (2008)] published Wed Jun 18, 2008.
A physicist's view of biology
Ivar Giaever
Abstract not available. [AIP Conf. Proc. 169, 110 (2008)] published Wed Jun 4, 2008.
Surface analysis for biomaterials and biological systems
Buddy D. Ratner and David G. Castner
Abstract not available. [AIP Conf. Proc. 378, 524 (2008)] published Mon May 12, 2008.
Random and chaotic oscillations in a model of childhood epidemics caused by seasonal variations of the contact rate
Polina S. Landa and Alexei A. Zaikin
We consider an alternative approach to a standard model for seasonal oscillations of childhood infections by introducing a noisy variation of control parameter instead of periodic one. Chaotic and noise-induced oscillations are compared and the problem of distinguishing between these two kinds of os ... [AIP Conf. Proc. 411, 321 (2008)] published Wed Apr 23, 2008.
Verifax: Biometric instruments measuring neuromuscular disorders/performance impairments
George W. Morgenthaler, Ruth Shrairman, and Alexander Landau
VeriFax, founded in 1990 by Dr. Ruth Shrairman and Mr. Alex Landau, began operations with the aim of developing a biometric tool for the verification of signatures from a distance. In the course of developing this VeriFax Autograph technology, two other related applications for the technologies unde ... [AIP Conf. Proc. 420, 736 (2008)] published Thu Apr 10, 2008.
Investigation of PACE software and VeriFax's Impairoscope device for quantitatively measuring the effects of stress
George W. Morgenthaler, German R. Nunez, Aaron M. Botello, Jose Soto, Ruth Shrairman et al.
Many reaction time experiments have been conducted over the years to observe human responses. However, most of the experiments that were performed did not have quantitatively accurate instruments for measuring change in reaction time under stress. There is a great need for quantitative instruments t ... [AIP Conf. Proc. 420, 609 (2008)] published Thu Apr 10, 2008.
Formal conceptual structure in language
Janos J. Sarbo
Conceptual structures like conceptual graphs and concept lattices are formal representations of knowledge, e.g. structure or information content. In this paper, it is argued that, based on Peirce's semeiotic theory of signs and linguistic knowledge about syntactic clusters, conceptual structures can ... [AIP Conf. Proc. 465, 289 (2008)] published Thu Mar 27, 2008.
A diagnostic process extended in time as a fuzzy model
Elisabeth Rakus-Andersson and Tadeusz Gerstenkorn
The paper refers to earlier results obtained by the authors and constitutes their essential complement and extension by introducing to a diagnostic model the assumption that the decision concerning the diagnosis is based on observations of symptoms carried out repeatedly, by stages, which may have e ... [AIP Conf. Proc. 465, 283 (2008)] published Thu Mar 27, 2008.
Medical physicists should seek employment elsewhere when resources are insufficient for quality patient care
Wlad T. Sobol, Ivan A. Brezovich, and Colin G. Orton
Abstract not available. [Med. Phys. 34, 4073 (2007)] published Fri Oct 5, 2007.
Intrabeam viewing of extended-source lasers with telescopes
Wesley J. Marshall, E. Christopher Brumage, and David H. Sliney
Magnifying optics can increase the hazards for intrabeam viewing of lasers. Although it is rather straightforward to evaluate these increased hazards for point-source lasers at distance, limited information is available for determining the hazards from viewing extended-source lasers from within the ... [J. Laser Appl. 19, 89 (2007)] published Tue Mar 6, 2007.
Light scattering regimes along the optical axis in turbid media
S. D. Campbell, A. K. O'Connell, S. Menon, Q. Su, and R. Grobe
We inject an angularly collimated laser beam into a scattering medium of a nondairy creamer-water solution and examine the distribution of the scattered light along the optical axis as a function of the source-detector spacing. The experimental and simulated data obtained from a Monte Carlo simulati ... [Phys. Rev. E 74, 061909 (2006)] published Tue Dec 26, 2006.
Genetic Code and Number Theory. (arXiv:0911.4014v1 [q-bio.OT])
ePrint arXiv http://arXiv.org/