ORCID Profile
0000-0001-8652-0039
Current Organisations
Macquarie University
,
Charles Darwin University
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Publisher: Institute for Operations Research and the Management Sciences (INFORMS)
Date: 02-2023
Abstract: Every convex homogeneous polynomial (or form) is nonnegative. Blekherman has shown that there exist convex forms that are not sums of squares via a nonconstructive argument. We provide an explicit ex le of a convex form of degree 4 in 272 variables that is not a sum of squares. The form is related to the Cauchy-Schwarz inequality over the octonions. The proof uses symmetry reduction together with the fact (due to Blekherman) that forms of even degree that are near-constant on the unit sphere are convex. Using this same connection, we obtain improved bounds on the approximation quality achieved by the basic sum-of-squares relaxation for optimizing quaternary quartic forms on the sphere. Funding: This work was supported by the Australian Research Council [Grant DE210101056].
Publisher: Informa UK Limited
Date: 20-02-2022
Publisher: Walter de Gruyter GmbH
Date: 2019
Abstract: Family planning programs have made significant contributions to lowering fertility levels in several developing nations. These advances often focus on women as the main agents of population control, ignoring the important role of men. However, in many countries/cultures decisions about fertility are highly embedded in social relationships at all levels, which make it imperative to investigate men’s position in the social structure. This study explores the relationship structures between men in Bangladesh using social network analysis to explore new possibilities for cost-effective healthcare strategies that have more far-reaching effects than the status quo. The results of this research show that men are embedded in un-fragmented and diffuse communication structures, formed across age and educational ide, beyond the bounds of kinship relations and village boundaries. Not only do men not shy away from discussion of contraceptives, but also approve and support their use. Men’s networks, thus, provide a potentially rich, but untapped, channel of communication for effectively and efficiently disseminating population control initiatives.
Publisher: Emerald
Date: 11-06-2018
DOI: 10.1108/IJSSP-10-2017-0120
Abstract: Social capital has become a general tool for policy interventions in developing countries – often put forward as empowering and improving women’s socioeconomic position. Using the framework of gendered manifestations of networks in patriarchal setting of Bangladesh, the authors argue that while networks are crucial building blocks of social capital they are bound to manifest differently depending on the context in which they are embedded. The paper aims to discuss this issue. By combining methods of social networks and spatial analysis, this study provides insights into the embeddedness of networks in gender norms. The authors conduct the study in the context of reproductive health networks in rural Bangladesh. The findings suggest that networks mirror the structure of the society in which they evolve, reproducing rather than challenging disadvantage. The authors call for a more nuanced view of social capital leading to policy design that is sensitive to different manifestations of networks. This study is the first to combine novel methods of social networks and spatial analysis to quantify the complex interplay between social networks and gender norms. This study further contributes to the diffusion literature by providing the first comparative view of women’s and men’s reproductive health networks that extend beyond actors’ direct tie.
Publisher: Elsevier BV
Date: 05-2023
Publisher: Wiley
Date: 22-04-2021
DOI: 10.1002/BSD2.169
Abstract: This paper brings insights to Fair Trade exchanges by casting commodities beyond material and pecuniary gains to include interpersonal relations. Although numerous studies have highlighted that Fair Trade brings benefits beyond the economic, the process through which ‘material things’ may become imbued with non‐pecuniary value remains under‐explored. Our analysis of interviews with Fairtrade certified smallholder farmers in Vietnam and in India provides insight into the discursive constructs of their participation in Fair Trade exchanges. Social exchange theory enables us to reconceptualise exchanges in the Fairtrade market to take into account interpersonal processes and long‐term relations of exchange between actors. We find that Fair Trade is associated with benefits to both community and in iduals and that these are intertwined and linked to participation in a democratic process in the cooperative. The pecuniary and non‐pecuniary value generated and sustained by farmer democratic organizations needs to be recognised by Fairtrade importing businesses.
Publisher: Informa UK Limited
Date: 22-07-2021
No related grants have been discovered for Bhanu Bhatia.