63 research outputs found

    Excitonic AND Logic Gates on DNA Brick Nanobreadboards

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    A promising application of DNA self-assembly is the fabrication of chromophore-based excitonic devices. DNA brick assembly is a compelling method for creating programmable nanobreadboards on which chromophores may be rapidly and easily repositioned to prototype new excitonic devices, optimize device operation, and induce reversible switching. Using DNA nanobreadboards, we have demonstrated each of these functions through the construction and operation of two different excitonic AND logic gates. The modularity and high chromophore density achievable via this brick-based approach provide a viable path toward developing information processing and storage systems

    Relation between vitamin D serum levels with migraine

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    Background and Objective: Migraine is common worldwide. In recent years, vitamin D deficiency has been shown as a global health issue. This study was done to determine the relationship between serum levels of vitamin D with migraine. Methods: This descriptive - analytical study was carried out on 76 patients (21 males, 55 females) with migraine aged 10-61 years olds. Serum vitamin D level of each patient was measured. Adjustments were done for age, sex, waist circumference, body mass index (BMI), number of chronic diseases, and education level. The multiple linear regressions were done to determine the relationship between serum levels of vitamin D with migraine. Results: Vitamin D defeicincy was seen in 13.2 of patients.The weak positive association was shown between serum vitamin D with headache (P<0.05), but no significant association was found between serum vitamin D level with migraine severity. Conclusion: No significant association was seen between serum levels of vitamin D with migraine severity
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