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Papers by zeinab amin

Research paper thumbnail of Quantification of Operational Risk: A Scenario-Based Approach

North American Actuarial Journal, 2016

Research paper thumbnail of On designing an acceptance sampling plan for the Pareto lifetime model

Research paper thumbnail of Some prediction problems concerning samples from the pareto distribution

Http Dx Doi Org 10 1080 03610929808832155, Jun 27, 2007

Research paper thumbnail of A note on the parameter estimation for the lognormal distribution based on progressively type I interval censored samples

Model Assisted Statistics and Applications, 2008

Page 1. Model Assisted Statistics and Applications 3 (2008) 169–176 169 IOS Press A note on the p... more Page 1. Model Assisted Statistics and Applications 3 (2008) 169–176 169 IOS Press A note on the parameter estimation for the lognormal distribution based on progressively Type I interval censored samples Zeinab H. Amin ...

Research paper thumbnail of Operational Risk Modelling and Management

Journal of Risk and Insurance, Dec 1, 2014

... Reasonable efforts have been made to publish reliable data and information, but the author an... more ... Reasonable efforts have been made to publish reliable data and information, but the author and publisher cannot assume responsibility for the validity of all materials or the consequences of their use. ... 4 1.2 A corporate governance structure . . ... 249 4.4 Social index example . . ...

Research paper thumbnail of Bayesian inference for the Pareto lifetime model under progressive censoring with binomial removals

Http Dx Doi Org 10 1080 09537280802187634, Oct 9, 2008

Page 1. Journal of Applied Statistics Vol. 35, No. 11, November 2008, 1203–1217 Bayesian inferenc... more Page 1. Journal of Applied Statistics Vol. 35, No. 11, November 2008, 1203–1217 Bayesian inference for the Pareto lifetime model under progressive censoring with binomial removals Zeinab H. Amin ∗ Department of Mathematics ...

Research paper thumbnail of Estimation of the Burr-XII distribution for partially accelerated life tests using censored data

Model Assisted Statistics and Applications

Page 1. Model Assisted Statistics and Applications 3 (2008) 317–334 317 IOS Press Estimation of t... more Page 1. Model Assisted Statistics and Applications 3 (2008) 317–334 317 IOS Press Estimation of the Burr-XII distribution for partially accelerated life tests using censored data Abdalla A. Abdel-Ghaly, Zeinab H. Amin and Dalia A. Omar ∗ ...

Research paper thumbnail of Bayesian modelling of health insurance losses

Journal of Applied Statistics, 2014

ABSTRACT The purpose of this paper is to build a model for aggregate losses which constitutes a c... more ABSTRACT The purpose of this paper is to build a model for aggregate losses which constitutes a crucial step in evaluating premiums for health insurance systems. It aims at obtaining the predictive distribution of the aggregate loss within each age class of insured persons over the time horizon involved in planning employing the Bayesian methodology. The model proposed using the Bayesian approach is a generalization of the collective risk model, a commonly used model for analysing risk of an insurance system. Aggregate loss prediction is based on past information on size of loss, number of losses and size of population at risk. In modelling the frequency and severity of losses, the number of losses is assumed to follow a negative binomial distribution, individual loss sizes are independent and identically distributed exponential random variables, while the number of insured persons in a finite number of possible age groups is assumed to follow the multinomial distribution. Prediction of aggregate losses is based on the Gibbs sampling algorithm which incorporates the missing data approach.

Research paper thumbnail of On designing an acceptance sampling plan for the Pareto lifetime model

Journal of Statistical Computation and Simulation, 2012

Abstract In this paper, the design of reliability sampling plans for the Pareto lifetime model un... more Abstract In this paper, the design of reliability sampling plans for the Pareto lifetime model under progressive Type-II right censoring is considered. Sampling plans are derived using the decision theoretic approach with a suitable loss or cost function that consists of ...

Research paper thumbnail of Bayesian inference for the Pareto lifetime model under progressive censoring with binomial removals

Journal of Applied Statistics, 2008

Page 1. Journal of Applied Statistics Vol. 35, No. 11, November 2008, 1203–1217 Bayesian inferenc... more Page 1. Journal of Applied Statistics Vol. 35, No. 11, November 2008, 1203–1217 Bayesian inference for the Pareto lifetime model under progressive censoring with binomial removals Zeinab H. Amin ∗ Department of Mathematics ...

Research paper thumbnail of Tests for the Validity of the Assumption that the Underlying Distribution of Life is Pareto

Journal of Applied Statistics, 2007

Page 1. Journal of Applied Statistics Vol. 34, No. 2, 195–201, March 2007 Tests for the Validity ... more Page 1. Journal of Applied Statistics Vol. 34, No. 2, 195–201, March 2007 Tests for the Validity of the Assumption that the Underlying Distribution of Life is Pareto ZEINAB H. AMIN Faculty of Economics and Political Science, Cairo University, Egypt ...

Research paper thumbnail of Some prediction problems concerning samples from the pareto distribution

Communications in Statistics - Theory and Methods, 1998

Page 1. COMMUN. STATIST.-THEORY METH., 27(5), 1221-1238 (1998) SOME PREDICTION PROBLEMS CONCERNIN... more Page 1. COMMUN. STATIST.-THEORY METH., 27(5), 1221-1238 (1998) SOME PREDICTION PROBLEMS CONCERNING SAMPLES FROM THE PARETO DISTRIBUTION Ian R Dunsmore School of Mathematics and Statistics ...

Research paper thumbnail of SDS-PAGE heat-shock protein profiles of environmental Aeromonas strains

Polish Journal of Microbiology Polskie Towarzystwo Mikrobiologow the Polish Society of Microbiologists, 2011

Aeromonas microorganisms normally grow at temperatures between 5 degrees C and 45 degrees C and t... more Aeromonas microorganisms normally grow at temperatures between 5 degrees C and 45 degrees C and therefore should have high thermotolerance. Thus it was of interest to find out whether A. hydrophila, A. caviae and A. veronii biovar sobria serovars respond to abrupt temperature changes with a heat shock-like response. To this end the present study was undertaken to determine whether Aeromonas species exhibits a heat shock response to different temperatures and time factors. The response of Aeromonas serovars to 24 h and 48 h of thermal stress at 25 degrees C, 42 degrees C and 50 degrees C involved the synthesis of 12-18 heat shock proteins (HSPs) bands with molecular weights ranging between 83.5-103.9 kDa in the high HSP molecular mass and 14.5-12.0 as low molecular mass HSP. Electrophoretic analysis of the HSPs showed that the serovars do not cluster very tightly and also that they are distinct from each other.

Research paper thumbnail of Exploring Self-Regulation Based Virtual Learning Environments Using Diary

Neuroscience and Biomedical Engineering, 2015

Research paper thumbnail of Consequences to international trade of chicken hatchlings: Salmonella enterica and its public health implications

Research paper thumbnail of Occurrence of Yersinia enterocolitica in birds

Research paper thumbnail of SDS-PAGE heat-shock protein profiles of environmental Aeromonas strains

Polish journal of microbiology / Polskie Towarzystwo Mikrobiologów = The Polish Society of Microbiologists, 2011

Aeromonas microorganisms normally grow at temperatures between 5 degrees C and 45 degrees C and t... more Aeromonas microorganisms normally grow at temperatures between 5 degrees C and 45 degrees C and therefore should have high thermotolerance. Thus it was of interest to find out whether A. hydrophila, A. caviae and A. veronii biovar sobria serovars respond to abrupt temperature changes with a heat shock-like response. To this end the present study was undertaken to determine whether Aeromonas species exhibits a heat shock response to different temperatures and time factors. The response of Aeromonas serovars to 24 h and 48 h of thermal stress at 25 degrees C, 42 degrees C and 50 degrees C involved the synthesis of 12-18 heat shock proteins (HSPs) bands with molecular weights ranging between 83.5-103.9 kDa in the high HSP molecular mass and 14.5-12.0 as low molecular mass HSP. Electrophoretic analysis of the HSPs showed that the serovars do not cluster very tightly and also that they are distinct from each other.

Research paper thumbnail of Quantification of Operational Risk: A Scenario-Based Approach

North American Actuarial Journal, 2016

Research paper thumbnail of On designing an acceptance sampling plan for the Pareto lifetime model

Research paper thumbnail of Some prediction problems concerning samples from the pareto distribution

Http Dx Doi Org 10 1080 03610929808832155, Jun 27, 2007

Research paper thumbnail of A note on the parameter estimation for the lognormal distribution based on progressively type I interval censored samples

Model Assisted Statistics and Applications, 2008

Page 1. Model Assisted Statistics and Applications 3 (2008) 169–176 169 IOS Press A note on the p... more Page 1. Model Assisted Statistics and Applications 3 (2008) 169–176 169 IOS Press A note on the parameter estimation for the lognormal distribution based on progressively Type I interval censored samples Zeinab H. Amin ...

Research paper thumbnail of Operational Risk Modelling and Management

Journal of Risk and Insurance, Dec 1, 2014

... Reasonable efforts have been made to publish reliable data and information, but the author an... more ... Reasonable efforts have been made to publish reliable data and information, but the author and publisher cannot assume responsibility for the validity of all materials or the consequences of their use. ... 4 1.2 A corporate governance structure . . ... 249 4.4 Social index example . . ...

Research paper thumbnail of Bayesian inference for the Pareto lifetime model under progressive censoring with binomial removals

Http Dx Doi Org 10 1080 09537280802187634, Oct 9, 2008

Page 1. Journal of Applied Statistics Vol. 35, No. 11, November 2008, 1203–1217 Bayesian inferenc... more Page 1. Journal of Applied Statistics Vol. 35, No. 11, November 2008, 1203–1217 Bayesian inference for the Pareto lifetime model under progressive censoring with binomial removals Zeinab H. Amin ∗ Department of Mathematics ...

Research paper thumbnail of Estimation of the Burr-XII distribution for partially accelerated life tests using censored data

Model Assisted Statistics and Applications

Page 1. Model Assisted Statistics and Applications 3 (2008) 317–334 317 IOS Press Estimation of t... more Page 1. Model Assisted Statistics and Applications 3 (2008) 317–334 317 IOS Press Estimation of the Burr-XII distribution for partially accelerated life tests using censored data Abdalla A. Abdel-Ghaly, Zeinab H. Amin and Dalia A. Omar ∗ ...

Research paper thumbnail of Bayesian modelling of health insurance losses

Journal of Applied Statistics, 2014

ABSTRACT The purpose of this paper is to build a model for aggregate losses which constitutes a c... more ABSTRACT The purpose of this paper is to build a model for aggregate losses which constitutes a crucial step in evaluating premiums for health insurance systems. It aims at obtaining the predictive distribution of the aggregate loss within each age class of insured persons over the time horizon involved in planning employing the Bayesian methodology. The model proposed using the Bayesian approach is a generalization of the collective risk model, a commonly used model for analysing risk of an insurance system. Aggregate loss prediction is based on past information on size of loss, number of losses and size of population at risk. In modelling the frequency and severity of losses, the number of losses is assumed to follow a negative binomial distribution, individual loss sizes are independent and identically distributed exponential random variables, while the number of insured persons in a finite number of possible age groups is assumed to follow the multinomial distribution. Prediction of aggregate losses is based on the Gibbs sampling algorithm which incorporates the missing data approach.

Research paper thumbnail of On designing an acceptance sampling plan for the Pareto lifetime model

Journal of Statistical Computation and Simulation, 2012

Abstract In this paper, the design of reliability sampling plans for the Pareto lifetime model un... more Abstract In this paper, the design of reliability sampling plans for the Pareto lifetime model under progressive Type-II right censoring is considered. Sampling plans are derived using the decision theoretic approach with a suitable loss or cost function that consists of ...

Research paper thumbnail of Bayesian inference for the Pareto lifetime model under progressive censoring with binomial removals

Journal of Applied Statistics, 2008

Page 1. Journal of Applied Statistics Vol. 35, No. 11, November 2008, 1203–1217 Bayesian inferenc... more Page 1. Journal of Applied Statistics Vol. 35, No. 11, November 2008, 1203–1217 Bayesian inference for the Pareto lifetime model under progressive censoring with binomial removals Zeinab H. Amin ∗ Department of Mathematics ...

Research paper thumbnail of Tests for the Validity of the Assumption that the Underlying Distribution of Life is Pareto

Journal of Applied Statistics, 2007

Page 1. Journal of Applied Statistics Vol. 34, No. 2, 195–201, March 2007 Tests for the Validity ... more Page 1. Journal of Applied Statistics Vol. 34, No. 2, 195–201, March 2007 Tests for the Validity of the Assumption that the Underlying Distribution of Life is Pareto ZEINAB H. AMIN Faculty of Economics and Political Science, Cairo University, Egypt ...

Research paper thumbnail of Some prediction problems concerning samples from the pareto distribution

Communications in Statistics - Theory and Methods, 1998

Page 1. COMMUN. STATIST.-THEORY METH., 27(5), 1221-1238 (1998) SOME PREDICTION PROBLEMS CONCERNIN... more Page 1. COMMUN. STATIST.-THEORY METH., 27(5), 1221-1238 (1998) SOME PREDICTION PROBLEMS CONCERNING SAMPLES FROM THE PARETO DISTRIBUTION Ian R Dunsmore School of Mathematics and Statistics ...

Research paper thumbnail of SDS-PAGE heat-shock protein profiles of environmental Aeromonas strains

Polish Journal of Microbiology Polskie Towarzystwo Mikrobiologow the Polish Society of Microbiologists, 2011

Aeromonas microorganisms normally grow at temperatures between 5 degrees C and 45 degrees C and t... more Aeromonas microorganisms normally grow at temperatures between 5 degrees C and 45 degrees C and therefore should have high thermotolerance. Thus it was of interest to find out whether A. hydrophila, A. caviae and A. veronii biovar sobria serovars respond to abrupt temperature changes with a heat shock-like response. To this end the present study was undertaken to determine whether Aeromonas species exhibits a heat shock response to different temperatures and time factors. The response of Aeromonas serovars to 24 h and 48 h of thermal stress at 25 degrees C, 42 degrees C and 50 degrees C involved the synthesis of 12-18 heat shock proteins (HSPs) bands with molecular weights ranging between 83.5-103.9 kDa in the high HSP molecular mass and 14.5-12.0 as low molecular mass HSP. Electrophoretic analysis of the HSPs showed that the serovars do not cluster very tightly and also that they are distinct from each other.

Research paper thumbnail of Exploring Self-Regulation Based Virtual Learning Environments Using Diary

Neuroscience and Biomedical Engineering, 2015

Research paper thumbnail of Consequences to international trade of chicken hatchlings: Salmonella enterica and its public health implications

Research paper thumbnail of Occurrence of Yersinia enterocolitica in birds

Research paper thumbnail of SDS-PAGE heat-shock protein profiles of environmental Aeromonas strains

Polish journal of microbiology / Polskie Towarzystwo Mikrobiologów = The Polish Society of Microbiologists, 2011

Aeromonas microorganisms normally grow at temperatures between 5 degrees C and 45 degrees C and t... more Aeromonas microorganisms normally grow at temperatures between 5 degrees C and 45 degrees C and therefore should have high thermotolerance. Thus it was of interest to find out whether A. hydrophila, A. caviae and A. veronii biovar sobria serovars respond to abrupt temperature changes with a heat shock-like response. To this end the present study was undertaken to determine whether Aeromonas species exhibits a heat shock response to different temperatures and time factors. The response of Aeromonas serovars to 24 h and 48 h of thermal stress at 25 degrees C, 42 degrees C and 50 degrees C involved the synthesis of 12-18 heat shock proteins (HSPs) bands with molecular weights ranging between 83.5-103.9 kDa in the high HSP molecular mass and 14.5-12.0 as low molecular mass HSP. Electrophoretic analysis of the HSPs showed that the serovars do not cluster very tightly and also that they are distinct from each other.