University of Wollongong

About: University of Wollongong is a education organization based out in Wollongong, New South Wales, Australia. It is known for research contribution in the topics: Population & Context (language use). The organization has 15674 authors who have published 46658 publications receiving 1197471 citations. The organization is also known as: UOW & Wollongong University.

Homogeneous/Inhomogeneous-Structured Dielectrics and their Energy-Storage Performances.

Abstract: The demand for dielectric capacitors with higher energy-storage capability is increasing for power electronic devices due to the rapid development of electronic industry. Existing dielectrics for high-energy-storage capacitors and potential new capacitor technologies are reviewed toward realizing these goals. Various dielectric materials with desirable permittivity and dielectric breakdown strength potentially meeting the device requirements are discussed. However, some significant limitations for current dielectrics can be ascribed to their low permittivity, low breakdown strength, and high hysteresis loss, which will decrease their energy density and efficiency. Thus, the implementation of dielectric materials for high-energy-density applications requires the comprehensive understanding of both the materials design and processing. The optimization of high-energy-storage dielectrics will have far-reaching impacts on the sustainable energy and will be an important research topic in the near future.

Cognitive functioning of long-term heavy cannabis users seeking treatment.

Abstract: ContextCognitive impairments are associated with long-term cannabis use, but the parameters of use that contribute to impairments and the nature and endurance of cognitive dysfunction remain uncertain.ObjectiveTo examine the effects of duration of cannabis use on specific areas of cognitive functioning among users seeking treatment for cannabis dependence.Design, Setting, and ParticipantsMultisite retrospective cross-sectional neuropsychological study conducted in the United States (Seattle, Wash; Farmington, Conn; and Miami, Fla) between 1997 and 2000 among 102 near-daily cannabis users (51 long-term users: mean, 23.9 years of use; 51 shorter-term users: mean, 10.2 years of use) compared with 33 nonuser controls.Main Outcome MeasuresMeasures from 9 standard neuropsychological tests that assessed attention, memory, and executive functioning, and were administered prior to entry to a treatment program and following a median 17-hour abstinence.ResultsLong-term cannabis users performed significantly less well than shorter-term users and controls on tests of memory and attention. On the Rey Auditory Verbal Learning Test, long-term users recalled significantly fewer words than either shorter-term users (P = .001) or controls (P = .005); there was no difference between shorter-term users and controls. Long-term users showed impaired learning (P = .007), retention (P = .003), and retrieval (P = .002) compared with controls. Both user groups performed poorly on a time estimation task (P<.001 vs controls). Performance measures often correlated significantly with the duration of cannabis use, being worse with increasing years of use, but were unrelated to withdrawal symptoms and persisted after controlling for recent cannabis use and other drug use.ConclusionsThese results confirm that long-term heavy cannabis users show impairments in memory and attention that endure beyond the period of intoxication and worsen with increasing years of regular cannabis use.

Effectiveness of the diabetes education and self management for ongoing and newly diagnosed (DESMOND) programme for people with newly diagnosed type 2 diabetes: cluster randomised controlled trial

Abstract: Objective To evaluate the effectiveness of a structured group education programme on biomedical, psychosocial, and lifestyle measures in people with newly diagnosed type 2 diabetes Design Multicentre cluster randomised controlled trial in primary care with randomisation at practice level Setting 207 general practices in 13 primary care sites in the United Kingdom Participants 824 adults (55% men, mean age 595 years) Intervention A structured group education programme for six hours delivered in the community by two trained healthcare professional educators compared with usual care Main outcome measures Haemoglobin A 1c levels, blood pressure, weight, blood lipid levels, smoking status, physical activity, quality of life, beliefs about illness, depression, and emotional impact of diabetes at baseline and up to 12 months Main results Haemoglobin A 1c levels at 12 months had decreased by 149% in the intervention group compared with 121% in the control group After adjusting for baseline and cluster, the difference was not significant: 005% (95% confidence interval −010% to 020%) The intervention group showed a greater weight loss: −298 kg (95% confidence interval −354 to −241) compared with 186 kg (−244 to −128), P=0027 at 12 months The odds of not smoking were 356 (95% confidence interval 111 to 1145), P=0033 higher in the intervention group at 12 months The intervention group showed significantly greater changes in illness belief scores (P=0001); directions of change were positive indicating greater understanding of diabetes The intervention group had a lower depression score at 12 months: mean difference was −050 (95% confidence interval −096 to −004); P=0032 A positive association was found between change in perceived personal responsibility and weight loss at 12 months (β=012; P=0008) Conclusion A structured group education programme for patients with newly diagnosed type 2 diabetes resulted in greater improvements in weight loss and smoking cessation and positive improvements in beliefs about illness but no difference in haemoglobin A 1c levels up to 12 months after diagnosis Trial registration Current Controlled Trials ISRCTN17844016

Approaching high-performance potassium-ion batteries via advanced design strategies and engineering.

Abstract: Potassium-ion batteries (PIBs) have attracted tremendous attention due to their low cost, fast ionic conductivity in electrolyte, and high operating voltage. Research on PIBs is still in its infancy, however, and achieving a general understanding of the drawbacks of each component and proposing research strategies for overcoming these problems are crucial for the exploration of suitable electrode materials/electrolytes and the establishment of electrode/cell assembly technologies for further development of PIBs. In this review, we summarize our current understanding in this field, classify and highlight the design strategies for addressing the key issues in the research on PIBs, and propose possible pathways for the future development of PIBs toward practical applications. The strategies and perspectives summarized in this review aim to provide practical guidance for an increasing number of researchers to explore next-generation and high-performance PIBs, and the methodology may also be applicable to developing other energy storage systems.

Health benefits of herbs and spices: the past, the present, the future - Public Health

Abstract: Recommendations for intakes fo food in the Australian Guide to Healthy Eating do not yet include suggested intakes of herbs and spices, although several dietary guidelines refer to their benefits. Future consideration should be given to including more explicit recommendations about the place of herbs and spices in a healthy diet