Background: Matrix-producing carcinoma (MPC) is a rare tumor accounting for 0.1% of all breast cancers. Although MPC is usually triple-negative breast cancer, there have been few reports of preoperative chemotherapy for MPC that is considered chemotherapy-resistant.
View Article and Find Full Text PDFIn this study, we investigated the cooperative molecular dynamics of poly(vinylpyrrolidone) (PVP), ice, and uncrystallized water (UCW) in partially crystallized PVP-water mixtures by means of broadband dielectric spectroscopy. Three relaxation processes, denoted I, II, and III, were observed at temperatures ranging from immediately below the crystallization temperature () to approximately 200 K. At temperatures of 173-193 K, processes I and II cannot be distinguished.
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