Analysis and dynamical structure of glucose insulin glucagon system with Mittage-Leffler kernel for type I diabetes mellitus.

In this paper, we propose a fractional-order mathematical model to explain the role of glucagon in maintaining the glucose level in the human body by using a generalised form of a fractal fractional operator. The existence, boundedness, and positivity of the results are constructed by fixed point theory and the Lipschitz condition for the biological feasibility of the system. Also, global stability analysis with Lyapunov's first derivative functions is treated. Numerical simulations for fractional-order systems are derived with the help of Lagrange interpolation under the Mittage-Leffler kernel. Results are derived for normal and type 1 diabetes at different initial conditions, which support the theoretical observations. These results play an important role in the glucose-insulin-glucagon system in the sense of a closed-loop design, which is helpful for the development of artificial pancreas to control diabetes in society.

The relationship between procrastination, perceived stress, saliva alpha-amylase level and parenting styles in Chinese first year medical students.

BACKGROUND: Procrastination is prevalent among students today, and this negatively impacts upon their academic achievement. The current study aimed to explore the relationship between procrastination, perceived stress, saliva alpha-amylase (sAA) levels, and the parenting styles of Chinese first year medical students (MBBS). METHODS: We recruited 140 MBBS students aged 18-22 years. Assessments included the Procrastination Assessment Scale-Students (PASS), the Chinese version of the Perceived Stress Scale (PSS), saliva alpha-amylase level (sAA), and the Chinese version of the Egna Minnen av Barndoms Uppfostran (EMBU) which assesses parenting style. PSS and sAA levels were assessed at week 1 (baseline), then again at week 2 and week 4. RESULTS: Male students reported higher levels of procrastination and perceived stress reactions than their female counterparts. Male students reported experiencing higher punishing/severe and rejecting (ie negative) parenting styles, while female students reported experiencing higher warm and affectionate (ie positive) parenting styles. Positive parenting styles were negatively associated with to procrastination and stress reactions, while negative parenting styles were positively associated with procrastination and delayed stress reactions among MBBS students. CONCLUSION: Procrastination induced stress in MBBS students, providing further evidence that procrastination enhances stress in young adulthood. Negative parenting styles, such as being punishing and rejecting, had a positive correlation with procrastination.

The Impact of Occupational Stress on Job Burnout Among Bank Employees in Pakistan, With Psychological Capital as a Mediator.

Background: Job burnout is a major issue for workers in the banking sector. Many employees report feeling exhausted and want to leave their jobs due to the extra pressure and workload from their superiors and clients. They also report not being well compensated for their hard work, which they believe they do to provide the best service to their clients. Methods: A cross-sectional study was made in various banks in different cities of Pakistan. An adapted questionnaire, including the effort-reward imbalance scale, psychological capital, and Maslach burnout inventory general survey were used to collect data from 1,778 male and female bank employees. Results: There was a significant and positive relationship between extrinsic effort and over-commitment on the one hand, and emotional exhaustion and depersonalization on the other. It was also found that reward was negatively associated with emotional exhaustion and depersonalization. However, reward had a positive association with personal accomplishment. There was a gender difference in the mediating effect of psychological capital on stress at work and job burnout. Conclusion: Male attitudes to work tend to be motivated by reward and appreciation, whereas females tend to demand a better working environment. To reduce job, burnout suitable interventions could be introduced for bank employees, whilst management support plays an important role in increasing or decreasing stress in employees.