Publications by authors named "Joanna Kubacka"
Article Synopsis
- Researchers aimed to develop environmentally friendly polyurethane foams by using modified used cooking oils (UCO) to create bio-polyols through transesterification with diethylene glycol and triethanolamine.
- By replacing varying percentages of traditional petrochemical polyol with these bio-polyols, they synthesized open-cell PUR foams, discovering that up to 60% bio-polyol content increased closed cell formation, while higher amounts led to cell opening.
- The bio-foams displayed lower thermal conductivity and greater compressive strength compared to traditional foams, demonstrating promising dimensional stability at elevated temperatures.
Universal recipients in the G2 phase of mitotic cell cycle (preactivated oocytes, zygotes, blastomeres) accept embryonic nuclei in all the stages of their cell cycle. To test if recipients in the G2 of meiotic cycle (immature oocytes) are universal recipients, mouse germinal vesicle (GV) oocytes were enucleated and reconstructed with blastomere nuclei in the G1, S, or G2 stages. Analysis of their maturation has shown that about 30% of the G1 nuclei and 60% of G2 nuclei allow for normal metaphase II (MII), both in the oocytes with and without the first polar body (1st PB).
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