Spontaneous chirality through mixing achiral components : A twist-bend nematic phase driven by hydrogen-bonding between unlike components

Acknowledgments: The work was supported by the National Science Centre (Poland) under the grant no. 2016/22/A/ST5/00319. RW gratefully acknowledges the Carnegie Trust for the Universities of Scotland for funding the award of a PhD scholarship.Peer reviewedPostprin

The interactions of disability and impairment

Theoretical work on disability is going through an expansive period, built on the growing recognition of disability studies as a discipline and out of the political and analytical push to bring disability into a prominent position within accounts of the intersecting social categories that shape people's lives. A current debate within critical disability studies is whether that study should include impairment and embodiment within its focus. This article argues it should and does so by drawing from symbolic interactionism and embodiment literatures in order to explore how differences in what bodies can do-defined as impairments-come to play a role in how people make sense of themselves through social interaction. We argue that these everyday interactions and the stories we tell within them and about them are important spaces and narratives through which impairment and disability are produced. Interactions and stories are significant both in how they are shaped by wider social norms, collective stories and institutional processes, and also how they at times can provide points of resistance and challenges to such norms, stories and institutions. Therefore, the significance of impairment and interaction is the role they play in both informing self-identity and also broader dynamics of power and inequality

Demystifying disability: A review of the International Classification of Functioning, Disability and Health

The paper describes and evaluates the theoretical underpinnings of the International Classification of Functioning, Disability and Health (ICF), and develops the proposition that its conceptual framework provides a coherent, if uneven, steer through the competing conceptions of disability. However, to date, there has been little evaluation of the theoretical efficacy of the ICF. In seeking to redress this, the paper develops the argument that the ICF fails to specify, in any detail, the content of some of its main claims about the nature of impairment and disability. This has the potential to limit its capacity to educate and influence users about the relational nature of disability. The paper develops the contention that three parts of the ICF require further conceptual clarification and development: (a). (re) defining the nature of impairment; (b). specifying the content of biopsychosocial theory; and, (c). clarifying the meaning and implications of universalisation as a principle for guiding the development of disability policies

Utilising Saturated Hydrocarbon Isosteres of para Benzene in the Design of Twist-Bend Nematic Liquid Crystals

The nematic twist-bend (NTB) liquid crystal phase possesses a local helical structure with a pitch length of a few nanometres and is the first example of spontaneous symmetry breaking in a fluid system. All known examples of the NTB phase occur in materials whose constituent mesogenic units are aromatic hydrocarbons. It is not clear if this is due to synthetic convenience or a bona fide structural requirement for a material to exhibit this phase of matter. In this work we demonstrate that materials consisting largely of saturated hydrocarbons can also give rise to this mesophase

Impairment, disability and loss: reassessing the rejection of loss.

Psychological theories of loss and grief, which suggest that people must go through stages such as shock, anger, denial, and despair before finally reaching a recovered stage of acceptance, have often been applied to understanding the experience of disability. However, this has also been firmly rejected within the U.K. disability studies literature, which draws on the experience of disabled people from a critical perspective. The result is not just a rejection of ways of understanding loss but a high level of caution in exploring disability from a psychological perspective. This article explores these debates and then considers if more recent theorizing about loss and grief has in any way addressed these criticisms. The disenfranchised grief, dual process, and meaning reconstruction models are each considered and questions are raised about their potential to contribute to disability studies