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5 Result For : Journal of Forensic Biomechanics
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Method to Investigate Contusion Mechanics in
Living Humans
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By
Geoffrey T. Desmoulin and GailS. Anderson
© 2011. Ashdin Publishing
Journal of Forensic Biomechanics, Volume 2
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 Table of Contents
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1-10 Page(s)
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Abstract
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The method utilizes equipment designed to
determine variables, which influence bruising mechanics
in living human subjects. The device allows weights to be
dropped in a controlled manner onto an impactor lying on
the skin surface to measure and analyze bruise mechanics.
Measured impact characteristics included peak force, peak
pressure, impact displacement, tissue stiffness, impact
velocity, pressure impulse, force impulse, kinetic energy
and the energy transmitted through the limb. Using kinetic
energy, transmitted energy and area in contact with the
skin we estimated energy absorbed by the limb and energy
density (J/m2). Only energy absorbed by the limb varied
signi?cantly according to logistic regression in the subject
that was tested and could therefore be used to determine
contusion tolerance in that speci?c case. Hence, the method
may be used to determine mechanical parameters required
by a striking implement to induce contusions in a particular
individual during crime scene reconstructions. |
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Keywords
Forensic science; contusion; bruise; biomechanics
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2. |
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Fratricide in a Person with Intellectual
Disabilities
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By
Lino Faccini and Marie A. Saide
© 2010. Ashdin Publishing
Journal of Forensic Biomechanics, Volume 1
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Table of Contents
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1-3 Page(s)
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Abstract
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Fratricide is an area within forensic psychology
that ha sreceived little attention.Even less attention has been
given to fratricide with persons with Intellectual Disabilities.
There are very few studies that have identified risk factors
and essential dynamics. Even less attention is given to a
typology of fratricide. This case study highlights the possibilityofathirdcategoryandanintegratedcategory,andalso
proposes another set of intergenerational dynamics occurring
within an adult person with Intellectual Disabilities. |
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Keywords
Fratricide; adults with intellectual disabilities
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3. |
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Abstract
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The imaginary companion phenomena has been
well studied in children and adolescents but less so in
adults. A comprehensive review of the research suggested
thatadultswithDownSyndromehaveahigherprevalenceof
adults having imaginary companions than nonintellectually
disabled populations. The present study examined the
prevalence and characteristics of the imaginary companion
experience in adults with intellectual disabilities via
surveying their treating psychologists. Out of 1914 adults
with intellectual disabilities, only seven individuals were
identi... |
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Keywords
Imaginary companions, persons with intellectual
disabilities and imaginary companions
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4. |
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Gait Recognition Using Joint Moments, Joint
Angles, and SegmentAngles
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By
P. K. Larsen, N. Lynnerup, M. Henriksen, T. Alkjar, and Erik B. Simonsen
© 2010. Ashdin Publishing
Journal of Forensic Biomechanics, Volume 1
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Table of Contents
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views |
1-7 Page(s)
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Abstract
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Recognition of gait patterns has been studied only
moderately during the last decades. Different gait strategies
have been described by applying different waveform analysis
techniques to biomechanical gait data and it has been
shown that individuals can be identified using joint angles
in the sagittal plane. However, little is known about additional
variables for gait recognition. We examined which
biomechanical variables (joint moments, joint angles, and
segment angles from the lower extremities) obtained in a
gait lab could be used to distinguish between 21 subjects on
two different days. A systematic "dc-offset" between days
was often observed. This could be removed by taking the
first derivative to the displacement data.Especially the joint
angular and segment angular "velocities" (first derivative)
in the sagittal and frontal planes provided high recognition
rates and 100% subjects could be recognized by combining
three of these variables. |
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Keywords
Correlation analysis, intraclass correlation, clinical
gait analysis, forensic medicine
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Abstract
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Biomechanics testimony was sought to assess
the feasibility of a claim made by the defendant that a
fatal head injury sustained by the victim arose as a result
of the defendant throwing a child's bicycle a horizontal
distance of 7m which accidentally struck the victim. The
method of projection was claimed to involve pushing the
bicycle from the chest equally with both hands from a
stationary upright standing position in a manner similar to
a chest pass in basketball. A further consideration in the
case was that the maximum height of the projectile during...
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Keywords
Release speed, head injury, biomechanics testimony
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