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Seyda T. Gunday,Emre Cevik,Ismail Anil,Omar Alagha,Hussein Sabit,Ayhan Bozkurt 한국고분자학회 2020 Macromolecular Research Vol.28 No.12
The current research aimed to produce anhydrous gel organic electrolytes with superior performance for high-temperature supercapacitor applications. Within this scope, anhydrous electrolytes were designed by the termination of 1,4- butanediol diglycidyl ether (BDE) with 5-aminotetrazole (AT). The BDE(AT)2 was further doped with phosphoric acid (PA) and 1-Ethyl-3-methylimidazolium tetrafluoroborate (EMT, as an ionic liquid) at varied ratios. The structure of fabricated electrolytes was elucidated with various spectroscopic techniques, and thermal studies confirmed high thermal stabilities and low glass transition temperatures, suggesting that they could be used in a wide temperature range. Different supercapacitor systems, in combination with carbon-based electrodes and BDE(AT)2, BDE(AT)2-0.1EMT, and BDE(AT)2-PA-0.1EMT electrolytes, were constructed. The supercapacitor device in combination with BDE(AT)2-PA-0.1EMT electrolyte, showed the highest ionic conductivity value of 1.2×10-4 S cm-1. The electrode/electrolyte combination demonstrated a maximum specific capacitance (80.4 F g-1), the highest specific energy (2.91 Wh kg-1), and highly effective electrochemical reversibility (up to 2.250 cycles). The supercapacitor device illustrated a better performance at higher temperatures in terms of its specific capacitance value.
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Gamal Layaly,Noshy Magda M.,Aboul-Naga A. M.,Sabit Hussein,El-Shorbagy Haidan M. 한국유전학회 2024 Genes & Genomics Vol.46 No.1
Background DNA methylation is an epigenetic mechanism that takes place at gene promoters and a potent epigenetic marker to regulate gene expression. Objective The study aimed to improve the milk production of Zaraibi goats by addressing the methylation pattern of two milk production-related genes: the growth hormone receptor (GHR) and the growth differentiation factor-9 (GDF-9). Methods 54 and 46 samples of low and high milk yield groups, respectively, were collected. Detection of methylation was assessed in two CpG islands in the GDF-9 promoter via methylation-specific primer assay (MSP) and in one CpG island across the GHR promoter using combined bisulfite restriction analysis (COBRA). Results A positive correlation between the methylation pattern of GDF-9 and GHR and their expression levels was reported. Breeding season was significantly effective on both peak milk yield (PMY) and total milk yield (TMY), where March reported a higher significant difference in PMY than November. Whereas single birth was highly significant on TMY than multiple births. The 3rd and 4th parities reported the highest significant difference in PMY, while the 4th parity was the most effective one on TMY. Conclusion These results may help improve the farm animals' milk productive efficiency and develop prospective epigenetic markers to improve milk yield by epigenetic marker-assisted selection (eMAS) in goat breeding programs.
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