Publications by authors named "F El Ktaibi"
Herein, we discuss an optimal control problem (OC-P) of a stochastic delay differential model to describe the dynamics of tumor-immune interactions under stochastic white noises and external treatments. The required criteria for the existence of an ergodic stationary distribution and possible extinction of tumors are obtained through Lyapunov functional theory. A stochastic optimality system is developed to reduce tumor cells using some control variables.
View Article and Find Full Text PDFIntroduction: COVID-19 is a virus that has spread rapidly and brought economic and social crises all around the world. The current study aimed to investigate the impact of COVID-19 quarantine on dietary habits, physical activity, food purchasing, smoking, and sleeping patterns in the United Arab Emirates.
Methods: A cross-sectional study was conducted using an online questionnaire between November 1st, 2020 and the end of January 2021.
The literature shows that grand multipara mothers are major contributors to poor maternal and perinatal health compared to multipara mothers. Data regarding parity profiles are essential, especially in rapidly transforming countries such as the United Arab Emirates (UAE). This study aimed to investigate the prevalence and factors associated with multipara mothers compared to multipara mothers in Abu Dhabi, UAE.
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- Breastfeeding is crucial for infant nutrition and has positive effects on maternal health, with psychosocial factors like breastfeeding intentions and self-efficacy influencing outcomes.
- A study conducted in Abu Dhabi with 1,799 mothers found a strong link between prenatal intention to breastfeed and the initiation and duration of breastfeeding practices.
- Providing knowledge about breastfeeding benefits and support from family significantly correlated with a longer duration of exclusive breastfeeding, highlighting the need for targeted education during prenatal care.
We introduce a new family of bivariate exponential distributions based on the counter-monotonic shock model. This family of distribution is easy to simulate and includes the Fréchet lower bound, which allows to span all degrees of negative dependence. The construction and distributional properties of the proposed bivariate distribution are presented along with an estimation of the parameters involved in our model based on the method of moments.
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