Structural and Electronic Properties of Dipyridamole and Derivatives

Quantum mechanical calculations at the B3LYP theory level, together with the 6-31G* basis set, were employed to obtain the energy, ionization potential, and polarizabilites for dipyridamole and derivatives, which are compared with their biological activity. Density functional calculations of the spin densities were performed for radical formed by electron abstraction of dipyridamole and derivatives. The unpaired electron remains in dipyridamole is localized on the nitrogen atoms in the substituent positions 1, 3, 5, 7, 11, 12, 13, 14, with participation of the 9 and 10 carbons in the pyrimido-pyrimidine ring. The antioxidant activity is related with ionization potential, polarizability and Log P.

Ethics and electronic commerce

Ethics is an important element in all aspects of computing, but proves to be a real problem in the development and delivery of electronic commerce systems. There are many aspects of ethics that can affect electronic commerce systems, but perhaps the most notable and worrying to both consumers and developers is that of trust.

In a world where so much information is transmitted and shared electronically, ethical standards that in general society are applied to this medium, are often ignored or forgotten. This paper will discuss some of the ethical considerations that should be considered in electronic commerce and offer the possible solutions that can encourage developers to consider ethical considerations and prove excellence and trust to the consumer.

Steric and electronic factors influencing recognition by a simple, charge neutral norbornene based anion receptor

Based on 1H NMR studies, subtle electronic factors rather than pre-organisation dictate the binding stoichiometry of the new, norbornene based, anion hosts 1 and 2 with acetate, however, the binding of dihydrogenphosphate appears to be based solely on steric constraints.

Stability of television viewing and electronic game/computer use in a prospective cohort study of Australian children: relationship with body mass index

Background
While much cross-sectional data is available, there have been few longitudinal investigations of patterns of electronic media use in children. Further, the possibility of a bi-directional relationship between electronic media use and body mass index in children has not been considered. This study aimed to describe longitudinal patterns of television viewing and electronic game/computer use, and investigate relationships with body mass index (BMI).
Methods
This prospective cohort study was conducted in elementary schools in Victoria, Australia. 1278 children aged 5–10 years at baseline and 8–13 years at follow-up had their BMI calculated, from measured height and weight, and transformed to z-scores based on US 2000 growth data. Weight status (non-overweight, overweight and obese) was based on international BMI cut-off points. Weekly television viewing and electronic game/computer use were reported by parents, these were summed to generate total weekly screen time. Children were classified as meeting electronic media use guidelines if their total screen time was ≤14 hrs/wk.
Results
Electronic media use increased over the course of the study; 40% met guidelines at baseline but only 18% three years later. Television viewing and electronic game/computer use tracked moderately and total screen time was positively associated with adiposity cross-sectionally. While weaker relationships with adiposity were observed longitudinally, baseline z-BMI and weight status were positively associated with follow-up screen time and baseline screen time was positively associated with z-BMI and weight status at follow-up. Children who did not meet guidelines at baseline had significantly higher z-BMI and were more likely to be classified as overweight/obese at follow-up.

Conclusion
Electronic media use in Australian elementary school children is high, increases with age and tracks over time. There appears to be a bi-directional association suggesting that interventions targeting reductions in either screen time or adiposity may have a positive effect on both screen time and adiposity.

Environmental management system and electronic communication : Is it the need of the hour?

Implementation and certification of Environmental Management Systems (EMS) is a reality for many businesses. Communication with an organisation’s stakeholders is a required element of any EMS. In the last five years companies have steadily moved towards integrating their different management systems, such as quality, environmental, and occupational health and safety, in an attempt to reduce their costs and increase efficiency. Legislation requires extensive reporting in each of these areas, so compliance is another important driver. During this period, communication by digital technology, or electronic communication, has gained prominence and acceptance amongst all groups of people including businesses primarily as a means to disseminate crucial EMS information to geographically diverse employees in a cost effective and instantaneous manner. Some perspectives have emerged to suggest that change processes in organisations may be hindered or helped in various ways through the application of digital technology in EMS. There are, however, gaps in the literature that document the impact and effectiveness of electronic communication amongst EMS stakeholders. In this paper we will discuss employees as one of the major stakeholders and whether the move to electronic communication has been assisting or hindering transformations in awareness and understanding of issues amongst employees. We highlight opportunities and challenges presented by an increased use of electronic communication in light of the environmental and climate change debates, which underpin EMS.

Aura, real-time motion capture dance and 3D stereoscopic dance

Aura explored the potential of motion capture and 3D stereo projection to visualize 1950's dance philosopher, Susanne K. Langer's notion of 'virtual force'.

Capturing dance and choroetopography : analyzing and visualizing complexity

 Motion capture provides 'snapshots' of the complexity of movement patterning.  This presentation explores how this complexity can be mapped to specific variables for analysis, and what such analyses both reveal and mask in relation to the choreographic practices involved, drawing on my three-year collaboration with mathematician Vicky Mak-Hau and biomechanist Richard Smith at the Deakin Motion.Lab in Melbourne, Australia.  The paper explores how these analyses can potentially drive creative processes in dance, and, through a discussion of performance project Choreotopography, how real-time motion capture can visualize and enhance spatial pathways using 3D stereoscopic projection.

(Electronic music) beginnings (full length)

This is an optimistic, full length pop instrumental featuring piano, dub-step styled drums, synth bass, muted trumpet, Hollywood styled strings and vibraphone. The break is touched with the melancholy.

(Electronic music) through the past (moody)

(Short 02) An eighties styled ambient piece that uses synth strings modelled on the late seventies-early eighties synths. Evoking the aural objects of that era. Instruments used in this composition are synths only.

(Positive electronic music) mighty boom (full length)

An uplifting, energetic dance styled composition with dirty synth, booming drums, piano and arpeggios.

Allelujah (dance version)

Allelujah Dance Version is a dance piece that also fits well with projects of a religious or spiritual theme; Christmas and Easter included. It centers on a female vocal singing Alleluia, with violin, cello, piano, harp, drums and bass.

Amazing drum and arp

Amazing Drum and Arp is a short instrumental featuring drum and synth.

Amazing ELECTRONIC LOOP

Amazing Loop is a loop ready file featuring synths and drums and in the style of ambient music.

Bass and breaks loop

A cool electro loop featuring bass and beats.