Publications by authors named "J S Whitehead"

The explosive growth in computation and energy cost of artificial intelligence has spurred interest in alternative computing modalities to conventional electronic processors. Photonic processors, which use photons instead of electrons, promise optical neural networks with ultralow latency and power consumption. However, existing optical neural networks, limited by their designs, have not achieved the recognition accuracy of modern electronic neural networks.

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Background: Māori are less likely to survive their lung cancer once diagnosed, but it remains unclear whether this is partially driven by poorer access to best-practice diagnostic services.

Methods: We examined all lung cancer registrations in Aotearoa New Zealand between 2007-2019 (n=27,869) linked to national administrative health datasets and further stratified by ethnicity, tumour type and stage of disease. Using descriptive and regression analyses, we compared ethnic groups in terms of the basis of diagnosis (e.

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Rubrobacter radiotolerans nerolidol synthase (NerS) and trans-α-bergamotene synthase (BerS) are among the first terpene synthases (TPSs) discovered from thermotolerant bacteria, and, despite sharing the same substrate, make terpenoid products with different carbon scaffolds. Here, the potential thermostability of NerS and BerS was investigated, and NerS was found to retain activity up to 55 °C. A library of 22 NerS and BerS variants was designed to probe the differing reaction mechanisms of NerS and BerS, including residues putatively involved in substrate sequestration, cation-π stabilisation of reactive intermediates, and shaping of the active site contour.

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Systemic lupus erythematosus (SLE) is a heterogenous autoimmune disease that affects multiple organs, including the heart. The mechanisms of myocardial injury in SLE remain poorly understood. In this study, we engineered human cardiac tissues and cultured them with IgG from patients with SLE, with and without myocardial involvement.

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Background: Lung cancer is a deadly cancer. Early diagnosis and access to timely treatment are essential to maximizing the likelihood of survival. Indigenous peoples experience enduring disparities in lung cancer survival, and disparities in access to and through lung cancer services is one of the important drivers of these disparities.

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