The terminal M.S. degree is no longer appropriate for students interested in a career in clinical medical physics in the United States
Michael D. Mills, Howard R. Elson, and Colin G. Orton
Abstract not available. [Med. Phys. 38, 1737 (2011)] published Tue Mar 8, 2011.
Abundance of stable periodic behavior in a Red Grouse population model with delay: A consequence of homoclinicity
Julia Slipantschuk, Ekkehard Ullner, Murilo da Silva Baptista, Mohammed Zeineddine, and Marco Thiel
Shrimp-shaped periodic regions embedded in chaotic regions in two-dimensional parameter spaces are of specific interest for physical and biological systems. We provide the first observation of these shrimp-shaped stability regions in a parameter space of a continuous time-delayed population model, o ... [Chaos 20, 045117 (2010)] published Thu Dec 30, 2010.
Mentoring future Medical Physics reviewers
William Hendee
Abstract not available. [Med. Phys. 37, 1371 (2010)] published Mon Mar 1, 2010.
Quantum physics meets biology
Markus Arndt, Thomas Juffmann, and Vlatko Vedral
Quantum physics and biology have long been regarded as unrelated disciplines, describing nature at the inanimate microlevel on the one hand and living species on the other hand. Over the past decades the life sciences have succeeded in providing ever more and refined explanations of macroscopic phen ... [HFSP J. 3, 386 (2010)] published Wed Jan 13, 2010.
Photonic crystal fiber in the polychaete worm Pherusa sp.
Tomasz M. Trzeciak and Peter Vukusic
Setae of the polychaete worm Pherusa exhibit remarkably strong photonic effects, which arise from their two-dimensional-periodic internal structure of hexagonally packed cylindrical channels. The hexagonal order is limited to monocrystalline domains of different orientation, which results in an over ... [Phys. Rev. E 80, 061908 (2009)] published Mon Dec 14, 2009.
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.