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CAE Stress Field Analysis by Shape Factor of Artificial Organs for Aortic Root Replacement
Aortic valve Valsalva sinus artificial valve CAD/CAE
2009/8/24
The sinuses of Valsalva are known to contribute to the normal function. Therefore, the Valsalva graft is being widely used in the aortic root replacement. On the other hand, the artificial valve is de...
The relation between gleason score,and nuclear size and shape factors in prostatic adenocarcinoma
Gleason score nuclear size nuclear shape prostatic adenocarcinoma
2009/7/6
Aim: The aim of this study was to assess the size and shape characteristics of prostatic adenocarcinoma cell nuclei using a computer-assisted analysis system, and to compare the results with the Gleas...
Morphometric Evaluation of the Foramen Magnum and Variations in its Shape:A Study on Computerized Tomographic Images of Normal Adults
Foramen magnum Measurements Variations
2009/6/24
The purpose of this study was to evaluate the radiological measurements of the foramen magnum (FM) and their relation to sex as well as to note variations in the shape of the FM. Cranial computerized ...
Shape Optimization of THA Hip Stem using Genetic Algorithm
Total hip arthroplasty Optimization Genetic Algorithm
2009/6/1
Mechanical failure of the cemented hip stem is mainly caused by several cement mantle problems such as cement fracture. Geometries of the cement mantle and the stem are important factors of failure ri...
The Influence of Activation Time on Left Ventricular Wall Motion—Simulation Study of Ring Shape Left Ventricular Model—
left ventricular wall motion simulation activation time excitation propagation simulation myocardial cell model ejection fraction biosimulation
2009/6/1
The heart is an organ with highly complex structure and its pump function is affected by various factors. Many reports showed the strong relation between the excitation-propagation phenomenon in the h...
Genetic Factors in the Shape of the Craniofacial Complex
Genetic Factors Craniofacial Complex
2009/3/9
Genetic Factors in the Shape of the Craniofacial Complex.
Genetic and Environmental Influences on the Shape of the Adult Dog Skull
Genetic and Environmental Influences Adult Dog Skull
2009/3/9
Taken in part from a doctoral thesis, Department of Anatomy, Queen's University, Belfast, Northern Ireland. Supported by a research grant from the Northern Ireland Hospitals' authority. Presently ...
The nuclear status of human sperm cells by TEM image cytometry：nuclear shape and chromatin texture in semen samples from fertile and infertile men
human sperm cells TEM image cytometry nuclear shape chromatin texture semen samples
2009/2/12
Changes in nuclear size, shape, and chromatin texture during spermiogenesis and epididymal transport of human sperm were recently analyzed using transmission electron microscopy (TEM) image cytome...
Shape of the craniofacial complex in patients with Klinefelter syndrome
Craniofacial dimensions Klinefelter syndrome Sex chromosomes
2009/1/12
The shape and size of the craniofacial complex in 35 adults with Klinefelter syndrome (47,XXY) were analyzed cephalometrically and compared with 60 control males. Twenty-four angular and 18 linear...
Clinicians have long suspected that tongue shape differs between obstructive sleep apnea (OSA) patients and normal subjects. The purpose of this study was to determine whether such differences exist...
Relationship of bull fertility to sperm nuclear shape
Relationship bull sperm nuclear shape
2008/12/29
The relationship between sperm nuclear shape and bull fertility was determined. Two groups of bulls, 3 per group, were selected. Bulls differed in fertility based on lifetime nonreturn rates. Digita...
Measurement of bovine sperm nuclear shape using Fourier harmonic amplitudes
bovine sperm nuclear shape
2008/12/29
An objective method for measuring bovine sperm nuclear shape was developed. Digital images of bovine sperm stained with propidium iodide were collected and Fourier functions used to describe the per...
Morphologically distinct sperm subpopulations defined by Fourier shape descriptors in fresh ejaculates correlate with variation in boar semen quality following cryopreservation
sperm subpopulations Fourier shape descriptors fresh ejaculates boar semen quality
2008/12/26
This study investigated two hypotheses: 1) that consistent between-boar variation in frozen semen quality exists and is genetically determined, and 2) that morphologically distinct subpopulations...
Maxillary Arch Size and Shape in American Blacks and Whites
Arch size Arch form Ethnic differences Sex differences
2008/12/26
American blacks have larger teeth than whites, but they less frequently exhibit crowding—apparently because of larger arch dimensions. This study quantified differences in arch size and shape in t...
Assessment of Root Resorption and Root Shape：Periapical vs Panoramic Films
Radiographic examination Diagnosis and treatment planning Risk factors Root resorption
2008/12/26
A radiographic examination is an essential part of the diagnostic process in orthodontics. However, what radiographs are needed to properly evaluate root shape and position? Most clinicians order ...