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Re-recognized universality of Kozai oscillation on three-body dynamics.
Proc Jpn Acad Ser B Phys Biol Sci
March 2025
National Astronomical Observatory of Japan, Mitaka, Tokyo, Japan.
In 1962, Yoshihide Kozai reported his findings on the secular dynamics of asteroids moving in orbits with high inclination and eccentricity. In contrast to the classic understanding of the stability of planetary motion in the solar system, Kozai showed that asteroids can significantly change their orbital shape over a long timescale in an oscillatory manner between nearly circular orbits and highly elliptic orbits. An anti-correlated variation between orbital inclination and eccentricity characterizes this oscillation.
View Article and Find Full Text PDFNetwork pharmacology combines cellular experiments to investigate the anti-inflammatory phytochemicals of vine of Pueraria montana var. lobata and their mechanism.
J Ethnopharmacol
March 2025
Jiangxi Province Key Laboratory of Pharmacology of Traditional Chinese Medicine, National Engineering Research Center for Modernization of Traditional Chinese Medicine - Hakka Medical Resources Branch, School of Pharmacy, Gannan Medical University, Ganzhou, Jiangxi 341000, China. Electronic address:
Ethnopharmacological Relevance: Pueraria montana var. lobata (PM) has the effects of relieving muscle stiffness and fever, generating body fluids and quenching thirst, resolving rashes, raising yang and stopping diarrhea, unblocking meridians, and detoxifying alcohol. It is commonly used for the management of conditions including stiff neck and back pain, thirst, diabetes, unresolved measles, external fever with headache, dysentery, diarrhea, dizziness and headache, stroke with hemiplegia, chest and heart pain, and alcohol poisoning.
View Article and Find Full Text PDFPost-lactation mass recovery and metabolic hormone dynamics in adult female Weddell seals.
Gen Comp Endocrinol
March 2025
Department of Biological Sciences, Texas Tech University, Box 43131, Lubbock, TX 79409, USA. Electronic address:
Weddell seal (Leptonychotes weddellii) females lose substantial body mass across an intensive, nutritionally restricted lactation period and then must rapidly recover mass during the short Antarctic summer. In this study, we examined endocrine dynamics associated with mass loss across lactation and subsequent realimentation in Weddell seals, comparing patterns between seals that recently gave birth and demographically similar non-reproductive females (skip females) in McMurdo Sound, Antarctica. Postpartum seals near weaning (∼35 days postpartum, n = 64) and skip females (n = 32) were handled during early austral summer (November/December) and rehandled in late summer (January/February).
View Article and Find Full Text PDFMicrobial diversity, enzyme activity, metal contamination, and their responses to environmental drivers in an Indo-Burmese freshwater wetland.
Environ Res
March 2025
Enviromental Chemistry Laboratory, Resource Management and Environmental Section, Life Science Division, Institute of Advanced Study in Science and Technology, Guwahati 781035, Assam, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India. Electronic address:
Seasonal fluctuations can influence many biotic and abiotic parameters in wetland environments. Present research on wetlands do not serve as a comprehensive model for understanding these seasonal influences, especially in Northeast India, where wetland ecosystems remain understudied. That being, our study investigated the seasonal, spatial, depth-wise variations of enzyme activity (xylanase, invertase, and cellulase), microbial community, and heavy metal concentrations [chromium (Cr), cadmium (Cd), lead (Pb), and iron (Fe)] in the sediments of Deepor Beel.
View Article and Find Full Text PDFSpatiotemporal variations, source apportionment, and cross-regional impacts of microplastics in surface seawater of Chinese Marginal Seas.
Mar Pollut Bull
March 2025
Department of Environmental Engineering, Hanseo University, Seosan City 356-706, Republic of Korea.
Microplastics (MPs) are widely distributed as a global pollutant, with dynamic patterns driven by horizontal diffusion and vertical mixing in marine ecosystems across different hydrological seasons and regions. This study employed MATLAB for image processing and interactive operations to extract data from existing studies on the Chinese Marginal Seas conducted from 2016 to 2022, focusing on the distribution, sources, and transport processes of MPs. The results revealed that the Bohai Sea exhibited the highest pollution levels during both the rainy (9328.
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