Publications by authors named "M Annamalai"

Unlabelled: All eukaryotes utilize regulated secretion to release molecular signals packaged in secretory granules for local and remote signaling. An anion shunt conductance was first suggested in secretory granules of bovine chromaffin cells nearly five decades ago. Biochemical identity of this conductance remains undefined.

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Background: India's oilseed economy falls short of self-sufficiency and is supplemented by huge imports every year. Increasing national productivity of the major oilseeds is confronted with yield losses due to diverse biotic and abiotic stresses. The productivity of Indian mustard (Brassica juncea Linnaeus), belonging to the family Brassicaceae, is significantly reduced due to damage caused by mustard aphids (Lipaphis erysimi Kaltenbach, Hemiptera: Aphididae).

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Article Synopsis
  • Physical activity and social engagement are essential for older adults to prevent functional decline and enhance their quality of life, yet a large percentage are physically inactive, with one in four adults globally not meeting activity guidelines.
  • The study evaluated the physical activity levels, functional status, and quality of life among 100 older patients (over 65) at a Chennai hospital, using several assessment tools to gather data.
  • Results revealed that only 17% of participants engaged in regular activity, with 81% not working on muscle strength or flexibility, and many reported disabilities, leading to challenges in daily tasks, although they had a moderate overall quality of life score.
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Yellow stem borer (YSB), , is a major rice pest causing significant yield losses worldwide. We investigated how volatile organic compounds (VOCs) released by the rice variety TN1, both before and after infestation, as well as by its companion weeds, and , influence the behavior of YSB in host selection, recognition, and establishment. Olfactometry bioassays showed that uninfested TN1 plant VOCs attracted YSB more than those from YSB-infested rice plants and weeds.

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The enzymatic biosensors' response can be monitored based on the results of nonlinear differential equations. The nonlinear reaction-diffusion equations proposed for this enzyme-based electrochemical biosensor include a nonlinear term associated with Michaelis-Menten kinetics. Herein, the system of nonlinear reaction-diffusion equations is solved using a modified homotopy perturbation method.

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