中国科学院机构知识库网格系统: 检索

Progress towards the synthesis of shagene A via ring-closing metathesis cascade 期刊论文 OAI收割
TETRAHEDRON, 2024, 卷号: 154, 页码: 8
作者: Bai, Mengmeng; Wang, Xinyu; Li, Qi

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Shagene A and B Antileishimanial agent Ring -closing metathesis cascade Cyclopropanation

Expression characteristics of Hsd3b7 in the gonads of Paralichthys olivaceus 期刊论文 OAI收割
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY B-BIOCHEMISTRY & MOLECULAR BIOLOGY, 2023, 卷号: 266, 页码: 10
作者: Zou, Congcong; Wang, Wenxiang; Shu, Chang; Liang, Shaoshuai; Zou, Yuxia

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Flounder Hsd3b7 Expression Gonadal differentiation and development Sox9a

Anti-inflammatory and PTP1B inhibitory sesquiterpenoids from the twigs and leaves of Aglaia lawii 期刊论文 OAI收割
FITOTERAPIA, 2022, 卷号: 162, 页码: 7
作者: Xia, Ming-Jun; Zhang, Meng; Li, Song-Wei; Cai, Zhe-Fei; Zhao, Tian-Sheng

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Aglaia lawii Sesquiterpenoids Amouanglienoids A and B X-ray diffraction Anti-inflammatory activity PTP1B inhibitory activity

Phytochemical and biological studies on rare and endangered plants endemic to China. Part XXII. Structurally diverse diterpenoids from the leaves and twigs of the endangered conifer Torreya jackii and their bioactivities 期刊论文 OAI收割
PHYTOCHEMISTRY, 2022, 卷号: 198, 页码: 113161
作者: Li, Hao; Tang, Yu; Liang, Kai-Yuan; Zang, Yi; Osman, Ezzat E. A.

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Torreya jackii Taxaceae Rare and endangered plants (REPs) Torreyins Diterpenoids Acetyl-coenzyme A carboxylase 1 (ACC1) Protein tyrosine phosphatase 1B (PTP1B) 11 12-Seco-abietane

Phytochemical and biological studies on rare and endangered plants endemic to China. Part XXII. Structurally diverse diterpenoids from the leaves and twigs of the endangered conifer Torreya jackii and their bioactivities
期刊论文 OAI收割
PHYTOCHEMISTRY, 2022, 卷号: 198, 页码: 9
作者: Li, Hao; Tang, Yu; Liang, Kai-Yuan; Zang, Yi; Osman, Ezzat E. A.

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收藏 | 浏览/下载：43/0 | 提交时间：2022/08/16

Torreya jackii Taxaceae Rare and endangered plants (REPs) Torreyins Diterpenoids Acetyl-coenzyme A carboxylase 1 (ACC1) Protein tyrosine phosphatase 1B (PTP1B) 11 12-Seco-abietane

Synergistic strengthening mechanisms of rhenium in nickel-based single crystal superalloys 期刊论文 OAI收割
INTERMETALLICS, 2021, 卷号: 132, 页码: 7
作者: Yue En-Lai; Yu Tao; Wang YJ(王云江); Wang Chong-Yu

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A Intermetallics B Plastic deformation mechanisms B Solid-solution hardening D Dislocation geometry and arrangement E Molecular dynamics simulation

Hyperterpenoids A and B: Two pairs of unprecedented 6/6/4/6/6 polycyclic cyclobutane meroterpenoids with potent neuroprotective and anti-inflammatory activities from Hypericum beanii 期刊论文 OAI收割
CHINESE CHEMICAL LETTERS, 2021, 卷号: 32, 期号: 7
作者: Zhen, Bo; Suo, Xinyue; Dang, Jun; Yue, Huilan; Tao, Yanduo

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Hypericum beanii Meroterpenoids (+/-)-Hyperterpenoid A and B Anti-inflammatory activity Neuroprotective activity

基于适配体结构转换检测AFB1、OTA 和ATP的新方法 学位论文 OAI收割
北京: 中国科学院生态环境研究中心, 2020
作者: 李亚飘

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核酸适配体、结构转换、小分子、黄曲霉毒素 B1 、赭曲霉毒素 a 、三磷酸腺苷、环境分析、生物分析 aptamer , Structure Switch , Small Molecule s, Aflatoxin B1, Ochratoxin a, Adenosine Triphosphate , Environmental Analysis, And bioAnalysis

Hyperinoids A and B, two polycyclic meroterpenoids from Hypericum patulum 期刊论文 OAI收割
CHINESE CHEMICAL LETTERS, 2020, 卷号: 31, 期号: 5, 页码: 1263-1266
作者: Jia, Xinyu; Wu, Yongmei; Lei, Chun; Yu, Yanyan; Li, Jianqi

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Meroterpenoids Hyperinoids A and B Anti-inflammation Hypericum patulum Guttiferae

The braking index of PSR B0540-69 and the associated pulsar wind nebula emission after spin-down rate transition 期刊论文 OAI收割
Monthly Notices of the Royal Astronomical Society, 2020, 卷号: 494, 页码: 1865-1870
作者: HXMT

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stars: magnetic field stars: neutron pulsars: general Astrophysics - High Energy Astrophysical Phenomena Abstract: In 2011 December, PSR B054-69 experienced a spin-down rate transition (SRT), after which the spin-down power of the pulsar increased by $\sim 36{{\ \rm per\ cent}}$. About 1000 d after the SRT, the X-ray luminosity of the associated pulsar wind nebula (PWN) was found to brighten by $32\pm 8{{\ \rm per\ cent}}$. After the SRT, the braking index n of PSR B0540-69 changes from n = 2.12 to 0.03 and then keeps this value for about five years before rising to n = 0.9 in the following years. We find that most of the current models have difficulties in explaining the measured braking index. One exceptive model of the braking index evolution is the increasing dipole magnetic field of PSR B0540-69. We suggest that the field increase may result from some instabilities within the pulsar core that enhance the poloidal component at the price of toroidal component of the magnetic field. The increasing dipole magnetic field will result in the X-ray brightening of the PWN. We fit the PWN X-ray light curve by two models: one assumes a constant magnetic field within the PWN during the brightening and the other assumes an enhanced magnetic field proportional to the energy density of the PWN. It appears that the two models fit the data well, though the later model seems to fit the data a bit better. This provides marginal observational evidence that magnetic field in the PWN is generated by the termination shock. Future high-quality and high-cadence data are required to draw a solid conclusion.