BACKGROUND This study examined relations among cumulative risk, nurturant and involved parenting, and behavior problems across early childhood. METHODS Cumulative risk, parenting, and behavior problems were measured in a sample of low-income toddlers participating in a family-centered program to prevent conduct problems. RESULTS Path analysis was utilized to examine longitudinal relations a...

We investigated whether the cumulative semantic inhibition effect found by Howard, Nickels, Coltheart, and Cole-Virtue (2006) provides information about semantic representations. By applying more sensitive statistical analyses to the original data set, we found a significant variation in the magnitude of the effect across categories. This variation cannot be explained by the naming speed of eac...

Henrich (2004) argued that larger populations can better maintain complex technologies because they contain more highly skilled people whom others can imitate. His original model, however, did not distinguish the effects of population size from population density or network size; a learner’s social network included the entire population. Does population size remain important when populations ar...

We study several epidemic models (with and without gender structure) that incorporate risk compensation behavior in response to a lower chance of acquiring the infection as a result of preventive measures that are only partially effective. We show that the cumulative risk compensation that occurs between a high risk susceptible and infectious individual may play an important role in whether the...

Carum copticum is a grassy and annual plant which is believed to have several therapeutic effects, including anti-asthmatic properties. We have therefore studied the bronchodilatory and anticholinergic effects of 4 rnL aqueous extract (AE), 0.0 5 mL ethanol extract (EE), and 0.0 0 5 mL essential oil (EO) of Carum copticum and 1 rnL of a 5 mM solution of its main ingredient, thymol (T), in ...

Repeated exposure to stressful events across the lifespan, referred to as cumulative adversity, is a potent risk factor for depression. Research indicates that cumulative adversity detrimentally affects emotion regulation processes, which may represent a pathway linking cumulative adversity to vulnerability to depression. However, empirical evidence that emotion dysregulation mediates the relat...

BACKGROUND Although subgroup analyses in clinical trials may provide evidence for individualised medicine, their conduct and interpretation remain controversial. METHODS Subgroup effect can be defined as the difference in treatment effect across patient subgroups. Cumulative subgroup analysis refers to a series of repeated pooling of subgroup effects after adding data from each of related tri...