scholarly journals l-6. Experimental Studies on the Metabolism in Head Injury

1968 ◽  
Vol 10 ◽  
pp. 234-234
Author(s):  
Nobuo MORIYASU ◽  
Kohten SATO ◽  
Yuji KOIKE ◽  
Shiro IZAWA ◽  
Shunichi MURAI
Keyword(s):  
Head Injury ◽  
Experimental Studies

scholarly journals 64. Experimental Studies on Hepatic Circulation and Functions in Head Injury

1963 ◽  
Vol 5 (0) ◽  
pp. 93b-94
Author(s):  
Nobuo MORIYASU ◽  
Kohten SATOW ◽  
Torao FUJII ◽  
Masakazu HONMA ◽  
Fumio MIYAUCHI ◽  
...  
Keyword(s):  
Head Injury ◽  
Experimental Studies ◽  
Hepatic Circulation

scholarly journals A NEW BIOMECHANICAL HEAD INJURY CRITERION

2006 ◽  
Vol 06 (04) ◽  
pp. 349-371 ◽  
Author(s):  
CHARLES F. BABBS
Keyword(s):  
Head Injury ◽  
High Speed ◽  
Compressive Strain ◽  
Experimental Studies ◽  
Closed Head Injury ◽  
Lumped Parameter Model ◽  
Viscoelastic Deformation ◽  
Head Injury Criterion ◽  
Closed Head ◽  
The Brain

This paper presents a new analysis of the physics of closed head injury caused by intense acceleration of the head. At rest a 1 cm gap filled with cerebrospinal fluid (CSF) separates the adult human brain from the skull. During impact, whole head acceleration induces artificial gravity within the skull. Because its density differs slightly from that of CSF, the brain accelerates, strikes the inner aspect of the rigid skull, and undergoes viscoelastic deformation. Analytical methods for a lumped parameter model of the brain predict internal brain motions that correlate well with published high-speed photographic studies. The same methods predict a truncated hyperbolic strength-duration curve for impacts that produce a given critical compressive strain. A family of such curves exists for different critical strains. Each truncated hyperbolic curve defines a head injury criterion (HIC) or threshold for injury, which is little changed by small offsetting corrections for curvature of the brain and for viscous damping. Such curves predict results of experimental studies of closed head injury, known limits for safe versus dangerous falls, and the relative resistance of smaller versus larger animals to acceleration of the head. The underlying theory provides improved understanding of closed head injury and better guidance to designers of protective equipment and to those extrapolating research results from animals to man.

Experimental studies in head injury

1966 ◽  
Vol 3 (2) ◽  
pp. 174-180 ◽  
Author(s):  
Sten Lindgren ◽  
Lennart Rinder
Keyword(s):  
Head Injury ◽  
Experimental Studies

3-D reconstruction and analysis of mammalian mitotic spindle structure

1992 ◽  
Vol 50 (1) ◽  
pp. 578-579
Author(s):  
Kent McDonald ◽  
David Mastronarde ◽  
Rubai Ding ◽  
Eileen O'Toole ◽  
J. Richard McIntosh
Keyword(s):  
Cross Sections ◽  
Mitotic Spindle ◽  
Experimental Studies ◽  
Video Camera ◽  
Three Dimensions ◽  
Mitotic Spindles ◽  
Black And White ◽  
Reconstruction Methods ◽  
Spindle Structure ◽  
Tissue Culture Line

Mammalian spindles are generally large and may contain over a thousand microtubules (MTs). For this reason they are difficult to reconstruct in three dimensions and many researchers have chosen to study the smaller and simpler spindles of lower eukaryotes. Nevertheless, the mammalian spindle is used for many experimental studies and it would be useful to know its detailed structure.We have been using serial cross sections and computer reconstruction methods to analyze MT distributions in mitotic spindles of PtK cells, a mammalian tissue culture line. Images from EM negatives are digtized on a light box by a Dage MTI video camera containing a black and white Saticon tube. The signal is digitized by a Parallax 1280 graphics device in a MicroVax III computer. Microtubules are digitized at a magnification such that each is 10-12 pixels in diameter.

Neurosurgical Management of Head Injury

2000 ◽  
Vol 10 (2) ◽  
pp. 16-20
Author(s):  
Ahmad Khaldi ◽  
Woodford Beach ◽  
Tobias Clausen ◽  
Ross Bullock
Keyword(s):  
Head Injury
Sign in / Sign up

Export Citation Format

Share Document