Whistle blowing and research integrity: Potential remedy for research misconduct in Malaysian institutions of higher education

This study found that less than half of the respondents are willing to blow the whistle. The results reveal that a lack of protection with regard to the whistleblower’s identity, the tedious investigative process, and the notion of avoiding confrontation, which is more apparent in Asian cultures as compared to the West, are among the reasons why individuals who witnessed misconduct chose to remain silent. Adhering to the Asian cultural upbringing where the young must respect the old, those of lower rank must obey those with higher authority, and subordinates do not question the actions of their superior, has become a norm even in the working environment. Therefore, emphasize the need for better protection for whistleblowers including using experienced individuals with a research ethics background to handle allegations from whistleblowers. In addition, established guidelines and procedures for whistleblowers with regard to voicing their allegations against colleagues engaged in research misconduct is still lacking or, to a certain extent, is still unknown to researchers. Thus, the concern indicates a need for institutions to create awareness among researchers regarding the existing platform for whistleblowers, or to develop a systematic and clear procedure which is reliable and independent to promote professionalism in academia.     

Constructive and Destructive Marital Conflict,Parenting, and Children's School and Social Adjustment

This study addresses the links between destructive and constructive marital conflict and mothers' and fathers' parenting to understand associations with children's social and school adjustment. Multi‐method, longitudinal assessments of 235 mothers, fathers, and children (129 girls) were collected across kindergarten, first, and second grades (ages 5–7 at time 1; ages 7–9 at time 3). Whereas constructive marital conflict was related to both mothers' and fathers' warm parenting, destructive marital conflict was only linked to fathers' use of inconsistent discipline. In turn, both mothers' and fathers' use of psychological control was related to children's school adjustment, and mothers' warmth was related to children's social adjustment. Reciprocal links between constructs were also explored, supporting associations between destructive marital conflict and mothers' and fathers' inconsistent discipline. The merit of examining marital conflict and parenting as multidimensional constructs is discussed in relation to understanding the processes and pathways within families that affect children's functioning.     

The permutation flow shop problem with just in time production considerations

This research presents a variation to the permutation flow shop problem where Just In Time (JIT) production requirements are taken into account. The model developed in this research employs dual objectives. In addition to the traditional objective of minimizing the production makespan, minimization of Miltenburg's material usage rate is also incorporated. In this model, multiple units of any product are permitted in the production sequence. However, the minimization of material usage rates attempts to prevent batch scheduling of products and allows unit flow of products as required in demand flow manufacturing. A solution method is proposed for determining an optimal production sequence via an efficient frontier approach and Simulated Annealing (SA). Test problems and specific performance criteria are used to assess the solutions generated by the proposed method. Experimental results presented in this paper show that the use of the efficient frontier and SA provide solutions that approach the optimal solution for the performance measures used in this research.     

Estimation in Regressive Logistic Regression Analyses of Familial Data with Missing Outcomes

This paper examines a number of methods of handling missing outcomes in regressive logistic regression modelling of familial binary data, and compares them with an EM algorithm approach via a simulation study. The results indicate that a strategy based on imputation of missing values leads to biased estimates, and that a strategy of excluding incomplete families has a substantial effect on the variability of the parameter estimates. Recommendations are made which depend, amongst other factors, on the amount of missing data and on the availability of software.     

On Multiprocessor System Scheduling

We show that there is a good algorithm for scheduling the average completion time of a set of unknown DAGs (i.e., data dependency relation graphs of programs) on a multiprocessor in the PRAM model (Karp and Ramachandran, 1990) (orother similar shared memory models.) Then, we show that a large class ofparallel jobs can be scheduled with near-optimal average completion time in the BSP model (Valiant, 1990a) though this is not possible for theclass of all unknown DAGs (Deng and Koutsoupias, 1993) (the same holds forother similar distributed memory models.)     

Use of Quality-Adjusted Life Year Weights with Dose-Response Models for Public Health Decisions: A Case Study of the Risks and Benefits of Fish Consumption

Risks associated with toxicants in food are often controlled by exposure reduction. When exposure recommendations are developed for foods with both harmful and beneficial qualities, however, they must balance the associated risks and benefits to maximize public health. Although quantitative methods are commonly used to evaluate health risks, such methods have not been generally applied to evaluating the health benefits associated with environmental exposures. A quantitative method for risk-benefit analysis is presented that allows for consideration of diverse health endpoints that differ in their impact (i.e., duration and severity) using dose-response modeling weighted by quality-adjusted life years saved. To demonstrate the usefulness of this method, the risks and benefits of fish consumption are evaluated using a single health risk and health benefit endpoint. Benefits are defined as the decrease in myocardial infarction mortality resulting from fish consumption, and risks are defined as the increase in neurodevelopmental delay (i.e., talking) resulting from prenatal methylmercury exposure. Fish consumption rates are based on information from Washington State. Using the proposed framework, the net health impact of eating fish is estimated in either a whole population or a population consisting of women of childbearing age and their children. It is demonstrated that across a range of fish methylmercury concentrations (0-1 ppm) and intake levels (0-25 g/day), individuals would have to weight the neurodevelopmental effects 6 times more (in the whole population) or 250 times less (among women of child-bearing age and their children) than the myocardial infarction benefits in order to be ambivalent about whether or not to consume fish. These methods can be generalized to evaluate the merits of other public health and risk management programs that involve trade-offs between risks and benefits.