11B nuclear magnetic resonance study of boron nitride nanotubes prepared by mechano-thermal method

We reported ¹¹B nuclear magnetic resonance studies of boron nitride (BN) nanotubes prepared by mechano-thermal route. The NMR lineshape obtained at 192.493 MHz (14.7 T) was fitted with two Gaussian functions, and the ¹¹B nuclear magnetization relaxations were satisfied with the stretched–exponential function, exp[-(tlT₁)^(D+1)/6] (D: space dimension) at all temperatures. In addition, the temperature dependence of spin–lattice relaxation rates was well described by T_i^-1 = aT (a: constant, T: temperature) and could be understood in terms of direct phonon process. All the 11BNMR results were explained by considering the inhomogeneous distribution of the paramagnetic metal catalysts, such as α-Fe, Fe–N, and Fe₂ B, that were incorporated during the process of high-energy ball milling of boron powder and be synthesized during subsequent thermal annealing. X-ray powder diffraction as well as electron paramagnetic resonance (EPR) on BN nanotubes were also conducted and the results obtained supported these conclusions.

Birds, buffers and bicycles : a review and case study of wetland buffers

Wetland buffers separate wetlands from surrounding land uses that are incompatible with wetland values. Buffers are established to fulfil a variety of needs. However, not all functions which are attributed to buffers are mutually compatible. In particular, their use as major recreational zones is not necessarily compatible with reducing disturbance to wetland wildlife, such as birds. This paper examines the buffer around an urban wetland at Altona, Victoria, which is extensively used by recreationists. The presence of a bicycle trail within the buffer might effectively reduce its size and effectiveness, and cause ‘buffer creep’ whereby the effective separation distance between people and birds is reduced. It might also unintentionally facilitate unauthorised access into an otherwise ‘off-limits’ wetland. While social support is critical for wetland conservation, the existence of recreation in buffers does not automatically confer high awareness of local wetlands. The success of buffers as a conservation tool will depend upon setting a clear objective for buffers, careful design and management, and evaluation of effectiveness to optimise the potential benefits for wetlands and their fauna.

Integration of market research and customer analytics : a study of CRM manager perspectives

The study examined key relationships between two overlapping customer knowledge systems, Market Research (MR) and Customer Analytics (CA). Their integration can provide valuable new marketing insights. However a survey of 286 US CRM and CA managers showed that many companies do not fully integrate MR and CA. Organisations with a Prospector strategic orientation were more likely to integrate the two and judge the CA system a success. Trust between the two functions enhanced knowledge integration. This in turn was shown to make a strong contribution to the value of CA and a modest indirect contribution to firm success.

Integrating sociological concepts into the study of accounting : yielding the benefits of team teaching

In response to recent criticisms of business and accounting education, a team of educators introduced a new course in social and critical perspectives on accounting. The course sought to integrate sociological concepts into the study of accounting, with key themes of social construction and social power forming a core of the course. The express intention was to raise student awareness of the nature and functions of accounting in contemporary society. The core teaching strategy involved team teaching, which was used to enhance learning and develop higher order generic skills. Feedback from two diverse cohorts of students vindicated the approach undertaken and reinforced the importance of linking teaching and research in accounting programs. Change in accounting education can be directed towards regaining and rebuilding social relevance for a discipline too often associated with a narrow economic imperative rather than the broader public interest.

Closed vs open corporate social networking communities : a case study of the Victoria Police and Dairy Australia.

The availability of affordable, user-friendly audio-visual equipment, software and the Internet, allows anyone to become a content creator or media outlet. This exploratory case study examines the adoption of social networking by Victoria Police and Diary Australia, a non-media and non-profit organization respectively, in corporate communication, public infmmation and community relations. The paper initiates discussions on the implications for traditional media and audiences of this phenomenon. It content analyzed the two websites during a two-week period and conducted interviews with their moderators about the sites' content, functions and efficacy. The purpose, role and community acceptance of these sites are examined, along with organizational motivations for establishing these channels to reach audiences, bypassing traditional media's gatekeeping function. It highlights how these organizations may set both media and public agendas when traditional media use this web content in their news gathering and reporting, similar to using press releases in the past.

A discourse study of Persian ra

The object marker râ in Persian has been studied extensively in the domain of sentence level syntax. It has been claimed that it functions as a definiteness marker, a specificity marker, and a topicalization marker. This paper focuses on the way it signals identifiability of discourse referents. It is argued that the identifiabilty phenomenon, an aspect of the theory of information flow, can adequately explain the role of this particle as used in actual discourse.