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Social and Behavioral Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Life Sciences

University of Wollongong

2009

Performance

Articles 1 - 2 of 2

Full-Text Articles in Social and Behavioral Sciences

Performance Of Body Mass Index In Predicting Diabetes And Hypertension In The Eastern Province Of Saudi Arabia, Ali M. Almajwal, Nadira A. Al-Baghli, Marijka J. Batterham, Peter G. Williams, Khalid A. Al-Turki, Aqeel J. Al-Ghamdi Jan 2009

Performance Of Body Mass Index In Predicting Diabetes And Hypertension In The Eastern Province Of Saudi Arabia, Ali M. Almajwal, Nadira A. Al-Baghli, Marijka J. Batterham, Peter G. Williams, Khalid A. Al-Turki, Aqeel J. Al-Ghamdi

Faculty of Health and Behavioural Sciences - Papers (Archive)

BACKGROUND AND OBJECTIVES: BMI is the most widely used measure to diagnose obesity but its accuracy and usefulness in Saudi subjects is unknown. This study aimed to assess the validity of standard BMI cut-point values in the Saudi population. SUBJECTS/ METHODS: 197,681 adults participated in a cross-sectional study to detect diabetes and hypertension in the Saudi Eastern province in 2004/5, with blood pressure, fasting blood sugar, height and weight measurements taken. Sensitivities, specificities, areas under the curves, predictive values, likelihood ratios, false positive, false negatives and total misclassification ratios were calculated for various BMI values determined from receiver operating characteristic …


Improved Performance Of Porphyrin-Based Dye Sensitised Solar Cells By Phosphinic Acid Surface Treatment, K Sunahara, Alessandra Allegrucci, S Mori, Naomi A. Lewcenko, Leone Spiccia, Attila J. Mozer, Lynn Dennany, Pawel W. Wagner, David L. Officer Jan 2009

Improved Performance Of Porphyrin-Based Dye Sensitised Solar Cells By Phosphinic Acid Surface Treatment, K Sunahara, Alessandra Allegrucci, S Mori, Naomi A. Lewcenko, Leone Spiccia, Attila J. Mozer, Lynn Dennany, Pawel W. Wagner, David L. Officer

Faculty of Science - Papers (Archive)

Chemical surface treatment of porphyrin-sensitised titania films using bis-(4-methoxyphenyl)phosphinic acid after dye adsorption, results in large improvements in DSSC efficiencies which originate primarily from higher short circuit currents. The result was attributed to a positive shift in the TiO2 quasi-Fermi level with simultaneous retardation of charge recombination. High device performances have been achieved even using simplified electrolyte matrices devoid of the common additives, LiI and t-butylpyridine.