Piano at the ground level

Radiation and COTS at ground level

Single Event Upset at Ground Level

Ground level upsets have been observed in computer systems containing large amounts of random access memory (RAM). Atmospheric neutrons are most likely the major cause of the upsets based on measured data using the Weapons Neutron Research (WNR) neutron beam.

From the ground up: strengthening health systems at district level

Introduction This supplement introduces the African Health Initiative (AHI), a research program comprised of five unique district health system-strengthening activities in Ghana, Mozambique, Rwanda, Tanzania, and Zambia that began in 2009 (Figure 1). This supplement should be of interest to all engaged in improving delivery of district primary health care — whether ministries of health, service...

Solar ultraviolet radiation on the ground level of Isfahan

Introduction: Ultraviolet (UV) radiation affects human organs such as skin, eyes and immune system, as well as animals and plants. The main natural source of UV radiation is the Sun. To study the effects of solar UV radiation there is a need to quantify variations of solar energy received on the earth surface at different intervals. Materials and Methods: To measure UV radiation a broadband fib...

asset pricing anomalies at the firm level

Anomaly is deviation from common rules and in finance it can be defined as a pattern in the average of stock return that is not consistent with the prevailing asset pricing models literature. For anomaly investigation two common methods are used: portfolio approach and individual firm approach. This paper wants to shed light on anomalies of capital asset pricing model at the individual firm lev...