Estimation of the threat of IEMI to complex electronic systems

The threat of ultra wideband (UWB) sources is interesting for military issues. This paper summarizes information concerning the voltages generated from some commercially available UWB generator systems and their produced electromagnetic fields. The paper focuses on the coupling of UWB fields into electronic equipment and discusses possible modeling and measurement techniques to estimate such a threat for modern ships. An evaluation procedure for the determination of the induced voltage at the input of an electronic component is presented. This method is based on the computation of the internal electric field and the measurements on a test network, which is similar to the structure of the steering control cabling. It allows the estimation of the potential threat for the ship's electronic equipment due to the exposal to UWB emitting sources

The Dutch EPS Registry:increasing the knowledge of encapsulating peritoneal sclerosis

Encapsulating peritoneal sclerosis (EPS) is a rare condition characterised by fibrotic thickening of the visceral peritoneum, leading to encapsulating of the intestines with partial or total intestinal obstruction. EPS is a serious complication of peritoneal dialysis (PD) with high morbidity and a mortality exceeding 50%. At present, there is uncertainty concerning the incidence and the risk factors involved in the development of EPS. To address these questions a nationwide registry has been initiated. The primary goals of the registry are to record the incidence of EPS and investigate the association of different variables, such as PD duration, medication, dialysis solutions and kidney transplantation with EPS. The registry will improve the knowledge of EPS and will serve to develop guidelines and necessary management strategies. From the registry different research activities can be initiated. A major challenge lies in the establishment of criteria that allow a timely diagnosis of EPS. At present, there are no diagnostic tools that can accurately detect EPS at an early stage. For this reason, besides patients with proven EPS, the clinical suspicion of EPS will be a sufficient criterion for inclusion in the registry. This nationwide EPS registry is currently enrolling patients

Choosing a Life of Impact: A Grounded Theory Approach to Describe the Career Choice of Becoming a High School Agriculture Teacher

The purpose of this grounded theory qualitative research was to identify the influences on students’ decisions to pursue a career as a high school agriculture teacher and develop a proposed theoretical model to conceptualize this career decision. Two samples of students – one sample of high school students and one sample of college students – were the participants in this study. Each participant included in the two samples was either considering teaching as a career or was currently enrolled in a university teacher licensure program. Data were collected from individual interviews, focus groups, and writing samples. The findings from this study suggested that when participants were motivated by role models with whom they could socially identify, became familiar with the profession through relevant experiences, and were affirmed of their career capabilities through people in their social environment to whom they were emotionally connected, they pursued a career path to become a high school agriculture teacher