UNLABELLED Due to the high cost of conducting field measurements, questionnaires are usually preferred for the assessment of physical workloads and musculoskeletal disorders (MSDs). This study compares the physical workloads of whole-body vibration (WBV) and awkward postures by direct field measurements and self-reported data of 45 occupational drivers. Manual materials handling (MMH) and MSDs ...

The nonperturbative aspects of string theory are explored for noncritical string in two distinct formulations, loop equations and matrix models. The effects corresponding to the D-brane in these formulations are especially investigated in detail. It is shown that matrix models can universally yield a definite value of the chemical potential for an instanton while loop equations cannot. This imp...

The nonperturbative aspects of string theory are explored for noncritical string in two distinct formulations, loop equations and matrix models. The effects corresponding to the D-brane in these formulations are especially investigated in detail. It is shown that matrix models can universally yield a definite value of the chemical potential for an instanton while loop equations cannot. This imp...

The paper presents and defends a Bayesian theory of trust in social networks. In the first part of the paper, we provide justifications for the basic assumptions behind the model, and we give reasons for thinking that the model has plausible consequences for certain kinds of communication. In the second part of the paper we investigate the phenomenon of overconfidence. Many psychological studie...

Although we have made great strides in reducing the burden of cardiovascular disease over the past 50 years, blacks in the United States still face increased cardiovascular mortality, along with a disproportionate burden of risk factors.1–3 However, if race-based comparisons become the basis for action, it is essential that they be measured and interpreted accurately. Blacks experience higher m...

Much work in behavioral ecology has shown that animals fight over resources such as food, and that they make strategic decisions about when to engage in such fights. Here, we examine the evolution of one, heretofore unexamined, component of that strategic decision about whether to fight for a resource. We present the results of a computer simulation that examined the evolution of over- or under...

The short report by Gunawardana et al 1 succinctly argues that a short inter-pregnancy interval, a proxy for fetal undernutrition and stress, increases the offspring's risk of later schizophrenia. The authors hint at a causal relationship. This is compelling because it suggests that an affordable public health intervention via the promotion of dietary supplements in the postpartum period may la...

I agree with the analysis in the preliminary evaluation as regards the limitations of LOS. However, I wanted to point out some of the challenges with several of the alternatives on the list. In particular, measures such as "Automobile Trips Generated" generated do not account for the fact that most trips are not "new," at least as these measures are typically calculated by planners and engineer...