There are few attempts in the education field that investigate the use of serious games as an instructional tool. In this paper, collaborative virtual environment (CVE) will be used to build up multi-players serious games (MPSGs) platform to investigate how MPSGs promotes social interaction among students. Furthermore, we extend our analysis to how significantly MPSGs affects online students’ s...

BACKGROUND Police and correctional officers face the occupational hazard of blood and body fluid exposures, which carry the risk of infection with HIV. AIMS To estimate the incidence rate (IR) of emergency department (ED) visits for blood or body fluid exposures sustained by police and corrections officers in an entire state and to quantify the utilization of HIV post-exposure prophylaxis (PE...

Unlike NICMOS and STIS, where a dataset might be constituted of a set of exposures, the WFPC2 data set’s structure was thought to be a repository of all the files belonging to a single exposure. Lacking higher level of abstraction, there is no simple way of tracing back which observation strategy (e.g., cosmic ray rejection, dithering) a WFPC2 PI decided to employ. Building associations of WFPC...

It is becoming increasingly apparent that genetic factors are inadequate to fully explain many processes that shape development and disease. For example, monozygotic twin pairs, despite sharing identical DNA sequences, are often discordant for many traits and diseases, indicating that the same genotype can give rise to distinct phenotypes. This points towards the involvement of additional facto...

Ambient monitoring of acid aerosols in four U.S. cities and in a rural region of southern Ontario clearly show distinct periods of strong acidity. Measurements made in Kingston, TN, and Steubenville, OH, resulted in 24-hr H+ ion concentrations exceeding 100 nmole/m3 more than 10 times during summer months. Periods of elevated acidic aerosols occur less frequently in winter months. The H+ determ...

The purpose of this report is to review the literature on cancer among persons employed in agriculture, to characterize the value of this line of research, and to recommend future directions. Farmers, despite a generally favorable mortality, appear to experience elevated rates for several cancers, including leukemia, non-Hodgkin's lymphoma, multiple myeloma, soft-tissue sarcoma, and cancers of ...