In this research work, fuzzy mathematical model using

generalized gamma distribution, a mathematical model based on fuzzy

log-logistic distribution, a fuzzy Rayleigh distributionmathematical model,

fuzzy reliability model by means of generalized Rayleigh distribution, fuzzy

mathematical model using Nadarajah and Haghighi distribution, fuzzy survival

analysis model using exponentiated Nadarajah

and Haghighi

distribution were developed. The thesis

planned to cover six chapters as follows:

In chpater

one, Literature review, mathematical models established

using fuzzy methods and the particulars about the hormone Oxytocin has been

presented.

In the

chapter two, a mathematical model developed by using fuzzy

generalized gamma distribution (FGGD) and fuzzy log-logistic distribution

(FLLD) and it is used to calculate the effect of different doses of oxytocin

has been conversed. The fuzzy mean and variance values are calculated for the changes of

hind paw with drawl latency (HWL) of normal

mature mice for dissimilar doses oxytocin 103 was analysed.

In the

Chapter three, fuzzy Rayleigh distribution (FRD) model and Fuzzy

generalaized Rayleigh distribution (FGRD) model has been debated. The parameter of Rayleigh distribution model

was find out by using maximum likelihood estrimator. The mean and variance

values are calculated for the salivary excretion of oxytocin 92 after

intransal administration of oxytocin. Using FGRD model the

haemodynamic effects 76 of oxytocin 5u was calculated by finding

the mean and variance of FGRD.

In chapter four, the fuzzy models based on FGGD,

FLLD, FGRD and FRD were used to find the haemodynamic changes caused by

oxytocin by finding the mean and variance values. The most reliable fuzzy model

among the above mentioned model was find out by using the testing of hypothesis

for the mean values of repiratory changes, heart rate, cardiac output, stroke

volume after administration 5u and 10udoses of oxytocin.

In chapter five, fuzzy reliability model was

established using generaliaed Rayleigh distribution (FGRD) and Fuzzy Nadarajah

and Haghighi (FNH) distribution. Theses models were using to measure the

reliablity or survival values and hazard rate values for the different time

interval after the administratrion of oxytocin for womens, undergoing caesarean

section 90, 100 were established.

In chapter six, Fuzzy Exponentiated

Nadarajah and Haghighi (FENH) distribution model was established. The survival

and hazard rates were measured for different time interval after the

administratrion of oxytocin for lower alpha cut

and for the upper alpha cut regarding the time intervals.