The Development of Quantum Mechanics

A historical account of the development of quantum mechanics, and the roles played by many outstanding physicists, their views and philosophical attitudes is presented. Ingenious and path-breaking experiments that helped this development along are highlighted. Ideas and notions that initially arose in the course of discussions on foundations of quantum mechanics and later paved the way for the emergence of the field of Quantum Information Science and Technology are briefly touched upon.     

Preliminary studies on the hypoglycemic effect of <Emphasis Type="Italic">Peganum harmala</Emphasis> L. Seeds ethanol extract on normal and streptozotocin induced diabetic rats

Peganum harmala L. (Zygophyllaceae) is a traditional medicine used for the treatment of variety of human ailments, including antidepression, hallucination, antileishmaniasis etc. We report for first time the hypoglycemic activity of the ethanolic extract of this plant at two dose levels of 150 and 250mg/kg bw in sucrose challenged normal as well as in rats with streptozotocin induced diabetes. The oral administration of ethanolic extract causes maximum fall of blood glucose level to 22.9% (p<0.05) and 29.4% (p<0.01) respectively with the two doses in normal and 30.3% (p<0.01) and 48.4% (p<0.001) in diabetic rats. The standard drug metformin treated group showed 28.0% (p<0.01) and 45.5% (p<0.001) respectively in normal and diabetic rats. The above results show that the ethanolic extract of P. harmala is as effective as metformin in reducing the blood glucose levels of normoglycemic and streptozotocin-induced diabetic rats.     

An exploratory study into work/family balance within the Australian higher education sector

The higher education landscape is undergoing major transformation, with a significant impact on the work and family practices of academics and professional staff. The purpose of this exploratory study is to examine the extent to which (1) time-related, (2) strain-related and (3) demographical variables impact on the work/family balance of academic and professional staff in Victorian universities and Technical and Further Education (TAFE) institutes. Our findings reveal that university employees experience greater work/family imbalance. The results of this research demonstrate how the three constructs contribute to work/family imbalance in academia, especially within the university sector. This paper is believed to be the first to explore work/family balance from an Australian cross-sectoral perspective. It provides an agenda for future theory and research to increase understanding of work/family balance from a cross-sectoral perspective.     

Performance Improvement in Small and Medium‐Sized Enterprises Due to Information Systems Implementation

The importance of integrated information systems in large firms is widely accepted by academicians and practitioners. The need for information systems adoption has been proved beyond a doubt for large firms. Small and medium‐sized enterprises can also improve their performance by implementing modern information systems. This case study analyzes the benefits of information systems implementation by comparatively highlighting the performance of three small and medium‐sized enterprises with varied extent and nature of information systems in them.     

A multiple cross-cultural comparison of approaches to learning

This study compares learning approaches of local English-speaking students and students from Asian countries studying at an Australian metropolitan university. The sample consists of students across 13 different countries. Unlike previous studies, students from Asian countries are subdivided into two categories: students from Confucian Heritage Cultures (CHC) and students from Asia-based non-Confucian Heritage Cultures (non-CHC). The rich diversity of student background enables meaningful comparison between cultural groups. There are three key findings. Firstly, CHC and non-CHC students are more likely to adopt a deep learning approach than local English-speaking (LES) students. Secondly, CHC students show a strong tendency to simultaneously adopt surface and deep approaches to learning. This tendency also exists with non-CHC students, albeit not as strongly as in as the former group. The LES students show the least tendency to adopt this mixed approach. Thirdly, memorisation appears correlated with deep learning across all three groups. The study is exploratory in nature but, if confirmed with larger samples, points to the need for further research beyond the traditional focus on CHC students on the role that memorisation and culture play in learning.     

Effect of short term supplementation of tomatoes on antioxidant enzymes and lipid peroxidation in type-II diabetes

The objective of the present study is to evaluate the beneficial effect of tomatoes, which are rich source of Lycopene, relatively a new carotenoid known to play an important role in human health and disease. In this study lipid peroxidation rate was measured by estimating Malondialdehyde and the levels of serum enzymes involved in antioxidant activities like Super Oxide Dismutase, Glutathione Peroxidase, Glutathione Reductase, Reduced Glutathione, in type-II diabetic group (n=40) and age matched control group (n=50), and observed significantly lower levels of antioxidant enzymes and very high lipid peroxidation rate in type-II diabetes when compared to control group (p<0.001). Short term supplementation with tomatoes (cooked) to diabetic group for a period of 30 days, showed a significant improvement in antioxidant enzyme levels (p<0.001) and decreased lipid peroxidation rate (p<0.001) suggesting the supplementation with tomato lycopene may serve as the best method of preventing the oxidative stress in diabetic patients.     

Filarial antibody and antigen detection in different clinical conditions in an endemic area

The study was conducted in filarial endemic area for various clinical presentations and diagnosis of occult filariasis. A total of 157 cases of various clinical presentations namely tropical pulmonary eosinophilia, monoarthritis, polyarthritis, glomerulonephropathy, tenosynovitis, inguinal lymphadenopathy, generalised lymphadenopathy, retroperitonial lymphadenopathy, endomyocardial fibrosis and acute conjunctivitis were screened for filarial antigen and antibody by enzyme linked immunosorbent assay (ELISA). Out of 157 cases, 107 cases were positive for antigen or antibody, suggesting the role of filarial infection in these clinical presentations. All the 107 cases were treated with diethylcarbamazine citrate (DEC) and some of the patients who were followed showed relief in signs and symptoms. Hence assay of filarial antigen and/or antibody may be useful for diagnosing occult filarial syndromes for better management and further appropriate treatment.     

Ontogenic development of adenylcyclase and phosphodiesterase in rat brain

The activities of adenylcyclase (AC) and phosphodiesterase (PDE) were determined in cerebral cortex of rats of 1 day to 18 months of postnatal age. The activity of dopamine-sensitive and serotonin-sensitive adenylcyclase was also determined in young and old rat brain. AC increased with age and attained a maximum at about 12 weeks of life which plateaued down at 5 months and remained unchanged in the later stages of life. Similarly PDE increased upto 15 weeks which later attained plateau. Dopamine-sensitive AC was not different between young and old rats. However, serotonin-sensitive AC was significantly more in old rats than in young rats. The increase in AC and PDE activity with aging is not only due to increase in protein content but might also be due to increase in cells rich in these enzymes.