Yingjuan Ma
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Detection of Zwan-Wolf effect in the ionosphere of Mars
Abstract At planets that possess strong dipole magnetic fields, the Zwan-Wolf effect acts to squeeze plasma along magnetic flux tubes, aiding in the deflection of the solar wind flow about the planet. While the effect has been most studied at Earth, candidate observations have also been made at the outer planets. Here we present observations of the Zwan-Wolf effect occurring at Mars, an unmagnetized planet that lacks a dipole magnetic field.
Frontiers | Astragalus polysaccharides: structure-immunomodulation relationships, multi-target pharmacological activities, and cutting-edge applications in immune modulation
1 Introduction Plant-derived polysaccharides constitute a major class of biological response modifiers, renowned for their ability to interact with the immune system to either enhance host defenses or restore immunological homeostasis (1, 2). Among these, Astragalus polysaccharide (APS), a key bioactive component from Astragalus membranaceus, has garnered significant attention due to its demonstrated immunomodulatory, antitumor, anti-inflammatory, and metabolic-regulatory properties (3).
Frontiers | Recent advances in Bletilla striata polysaccharide research: extraction methodologies, structural elucidation, pharmacological mechanisms, structure-activity relationships, and therapeutic delivery applications
1 Introduction Bletilla striata (Thunb. ex A. Murray) Rchb. f. represents a perennial herbaceous species within the Orchidaceae family. Globally distributed, this species exhibits diverse vernacular nomenclature: in China, Baiji, Gangen, Zhulan, or Zilan; in Korea, Jaran; in Japan, Shiran; in Denmark, Mikodoblomst; in Sweden, Mikadoblomma; and in Germany, Japanorchidee (He et al., 2017).
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