Temperature, illumination and fluence dependence of current and voltage in electron irradiated solar cells

Emperical equations have been derived from measurements of solar cell photovoltaic characteristics relating light generated current, IL, and open circuit voltage, VO, to cell temperature, T, intensity of illumination, W, and 1 Mev electron fluence, phi both 2 ohm-cm and 10 ohm-cm cells were tested. The temperature dependency of IL is similar for both resistivities at 140mw/sq cm; at high temperature the coefficient varies with fluence as phi 0.18, while at low temperatures the coefficient is relatively independent of fluence. Fluence dependent degration causes a decrease in IL at a rate proportional to phi 0.153 for both resistivities. At all intensities other than 560 mw/sq cm, a linear dependence of IL on illumination was found. The temperature coefficient of voltage was, to a good approximation, independent of both temperature and illumination for both resistivities. Illumination dependence of VOC was logarithmic, while the decrease with fluence of VOC varied as phi 0.25 for both resistivities

Study to determine and improve design for lithium-doped solar cells Quarterly report, 1 Jan. - 31 Mar. 1971

Lithium donor density gradient measurements for prediction of lithium cell behavior after electron irradiation and recoverabilit

Microbial Analysis of Biomedical Wastes From Selected Health Facilities in Parts of Edo South and Its Public Health Implication

This study, aimed at the microbial analysis of biomedical waste (BMW) was carried out using 100 samples of 10 different BMW collected in duplicates from 5 busy primary healthcare centers (PHCs).The research findings showed a high prevalence of E.coli (39%) and S.aureus (32%) which were both statistically significant at P≤0.05, while the least isolated organisms were K. pnuemoniae (10%) and B. subtilis (4%) and were statistically not significant at P≥0.05. Samples from dressings and beddings were found to contain the highest microbial loadof 25 and 13 respectively while the least number of isolates were from expired cytotoxic drugs (2) and lancets (1).The biochemical tests showed the presence of Gram positive and negative organisms with record of both aerobic and anaerobic isolates from the BMW. The investigation revealed that BMW contains mixed bacterial community with some being pathogenic and pose a public health hazard to both health workers and other community members, therefore adequate treatment measures should be given to all BMW before disposal

The Effects of Acute Exercise and Learning Strategy Implementation on Episodic Memory Performance

Over the years, a growing body of research has shown that exercise has beneficial impacts on various types of memory function. However, most of these studies have focused on children or older adults, with less research conducted among young adults, despite research demonstrating that memory function may start to decline in early adulthood. This thesis provides background information regarding the effects of exercise on memory function, as well as different learning-based strategies to help facilitate learning and memory retention. Furthermore, the research I completed for this thesis specifically evaluated the experimental effects of acute exercise, a specific learning strategy (3-R technique), and their combined effects, on short- and long-term memory function. The results of this experiment demonstrate that memory function was enhanced, to the greatest extent, among those who engaged in an acute bout of exercise (brisk walking) and also implemented the 3-R learning technique, when compared to those who only exercised, only implemented the learning technique, or those doing neither

Drinking Motives as Potential Mediators of Associations Between Loneliness and Alcohol Use and Consequences Among College Students

College is a pivotal time when many individuals begin to cultivate social relationships and engage in heavy drinking practices, resulting in alcohol-related consequences. Two potential factors associated with college drinking behaviors are loneliness and drinking motivation. Loneliness has mixed associations with drinking behaviors, meanwhile, drinking motives have clear associations with drinking behaviors. Prior research suggests that individuals experiencing loneliness are more likely to drink to cope, yet the existing research examining loneliness, drinking motives, and drinking behaviors is limited. Thus, this study aims to examine associations between 1) loneliness and drinking behaviors; 2) loneliness and drinking motives; 3) and whether drinking motives mediate associations between loneliness and drinking behaviors. A secondary data analysis was conducted, which included 1,107 college students aged 18-25 (55.06% women), with a mean age of 21.57 years. Results showed that, controlling for anxiety and depressive symptoms, loneliness is not associated with alcohol consumption nor alcohol-related consequences. It was also found that all four drinking motives were positively associated with loneliness. Lastly, conformity motivation was the sole significant mediator, such that those who were lonely and drank for conformity motives, had fewer drinks per week; however, had more alcohol-related consequences. These results aid in our understanding of the role of loneliness in drinking and can assist in creating future prevention interventions for heavy drinking in college students

The Effects of Acute Exercise and Learning Strategy Implementation on Episodic Memory Performance

Over the years, a growing body of research has shown that exercise has beneficial impacts on various types of memory function. However, most of these studies have focused on children or older adults, with less research conducted among young adults, despite research demonstrating that memory function may start to decline in early adulthood. This thesis provides background information regarding the effects of exercise on memory function, as well as different learning-based strategies to help facilitate learning and memory retention. Furthermore, the research I completed for this thesis specifically evaluated the experimental effects of acute exercise, a specific learning strategy (3-R technique), and their combined effects, on short- and long-term memory function. The results of this experiment demonstrate that memory function was enhanced, to the greatest extent, among those who engaged in an acute bout of exercise (brisk walking) and also implemented the 3-R learning technique, when compared to those who only exercised, only implemented the learning technique, or those doing neither

Audit And Feedback For Blood Glucose Point Of Care Testing

Practice Problem: Patient identification errors in point-of-care testing (POCT) is responsible for test results being missed or transferred to the wrong patient’s chart. A hospital in Los Angeles County experienced a 50% compliance rate in patient barcode scanning prior to blood glucose POCT which affected the delivery of care. PICOT: The PICOT question that guided this project was: Among emergency room nursing staff (P), how does the implementation of audit and feedback (I), when compared to random observations (C) improve compliance of patient identification with barcode scanning before performing blood glucose check (O) within ten weeks (T)? Evidence: The evidence suggests that the implementation of an audit and feedback system decreases patient identification errors and improves staff compliance with POCT policies and procedures. Intervention: The intervention utilized for the change project was an Audit and Feedback system whereby nursing staff were monitored for their compliance in the proper identification of patients through scanning patients’ identification bands prior to blood glucose POCT. Feedback was provided to highlight any errors in patient identification. Outcome: The project results demonstrate an increase in the rate of compliance from 50% to 83% after the implementation of audit and feedback. Conclusion: The results of this project replicated the literature findings that the use of audit and feedback improve nurses’ compliance with barcode scanning prior to performing POCT. The findings of the project were very beneficial to the hospital, as they strive to provide the best patient care