scholarly journals Introduction of Hypermatrix and Operator Notation into a Discrete Mathematics Simulation Model of Malignant Tumour Response to Therapeutic SchemesIn Vivo. Some Operator Properties

2009 ◽  
Vol 7 ◽  
pp. CIN.S2712 ◽  
Author(s):  
Georgios S. Stamatakos ◽  
Dimitra D. Dionysiou
Keyword(s):  
Simulation Model ◽  
Tumour Response ◽  
Malignant Tumour ◽  
Discrete Mathematics ◽  
Operator Notation

A four-dimensional simulation model of tumour response to radiotherapy in vivo: parametric validation considering radiosensitivity, genetic profile and fractionation

2004 ◽  
Vol 230 (1) ◽  
pp. 1-20 ◽  
Author(s):  
Dimitra D. Dionysiou ◽  
Georgios S. Stamatakos ◽  
Nikolaos K. Uzunoglu ◽  
Konstantina S. Nikita ◽  
Antigoni Marioli
Keyword(s):  
Simulation Model ◽  
Tumour Response ◽  
Genetic Profile ◽  
Dimensional Simulation

Surface Ultrastructure of Human Ectocervix in Certain Pathological Conditions

1985 ◽  
Vol 43 ◽  
pp. 570-571
Author(s):  
S. Mukherjee ◽  
T. Guha ◽  
B. Chakrabarti ◽  
P. Chakrabarti
Keyword(s):  
Epithelial Cells ◽  
Marked Reduction ◽  
Squamous Epithelium ◽  
Malignant Tumour ◽  
Surface Ultrastructure ◽  
Normal Tissues ◽  
Pathological Conditions ◽  
Hexagonal Shape ◽  
Columnar Cells ◽  
Scanning Electron

The cervix is an important organ in reproduction. Its malfunction is frequently a factor for infertility. Ectocervix region does not appear to have received much attention although many studies have been reported on the endocervix. We report here our SEM observations on ectocervix in certain pathological conditions compared to normal ectocervix.Ectocervix specimens from human females with specific pathological disorders were processed for Scanning Electron Microscopy by conventional method and they were examined in a Philips SEM.The normal ectocervix is lined by flat layer of squamous epithelial cells with microridges (Fig. 1). These cells are known to be formed from columnar cells through metaplastic transformation. The cells of carcinoma-bearing ectocervix show a disorganised appearance (Fig. 2). In non-malignant tumour surface some cuboidal and few columnar cells were seen (Fig. 3). A cyst appears like an overgrowth on the surface of the squamous epithelium (Fig. 4). In ulcerated ectocervix a marked reduction of epithelial cells are observed (Fig. 5); the cells are devoid of microridges and, the large polygonal cells, as observed in normal tissues, have somehow acquired comparatively small hexagonal shape

Novel simulation model for many-body multipole dispersion interactions

1998 ◽  
Vol 94 (3) ◽  
pp. 417-433 ◽  
Author(s):  
MARTIN VAN DER HOEF ◽  
PAUL MADDEN
Keyword(s):  
Simulation Model ◽  
Dispersion Interactions ◽  
Many Body

Partition Coefficient Ratios and Tumour Perfusion Studied with 85mKr and 133Xe

1987 ◽  
Vol 26 (06) ◽  
pp. 253-257
Author(s):  
M. Mäntylä ◽  
J. Perkkiö ◽  
J. Heikkonen
Keyword(s):  
Partition Coefficient ◽  
Partition Coefficients ◽  
Regional Blood Flow ◽  
Blood Perfusion ◽  
Compartmental Analysis ◽  
Malignant Tumour ◽  
Mean Value ◽  
Perfusion Rate ◽  
Biological Variables ◽  
The Mean

The relative partition coefficients of krypton and xenon, and the regional blood flow in 27 superficial malignant tumour nodules in 22 patients with diagnosed tumours were measured using the 85mKr- and 133Xe-clearance method. In order to minimize the effect of biological variables on the measurements the radionuclides were injected simultaneously into the tumour. The distribution of the radiotracers was assumed to be in equilibrium at the beginning of the experiment. The blood perfusion was calculated by fitting a two-exponential function to the measuring points. The mean value of the perfusion rate calculated from the xenon results was 13 ± 10 ml/(100 g-min) [range 3 to 38 ml/(100 g-min)] and from the krypton results 19 ± 11 ml/(100 g-min) [range 5 to 45 ml/(100 g-min)]. These values were obtained, if the partition coefficients are equal to one. The equations obtained by using compartmental analysis were used for the calculation of the relative partition coefficient of krypton and xenon. The partition coefficient of krypton was found to be slightly smaller than that of xenon, which may be due to its smaller molecular weight.

A Research on Tension Determination and Morphological Simulation Model of Mooring Lines

ICTIS 2013 ◽  
2013 ◽  
Author(s):  
Shengli Li ◽  
Zhengwei He ◽  
Jia Shi ◽  
Youqin Zheng ◽  
Xiaoqiao Geng ◽  
...  
Keyword(s):  
Simulation Model ◽  
Mooring Lines
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