Results 51 to 60 of about 11,026 (264)

Thermal, radioactive and magnetic properties of the lavas of the Mt Melbourne Volcanic Field (Victoria Land, Antarctica)

Annals of Geophysics, 2009
We present the results of measurements of physical properties carried out on mafic lavas from the Mt Melbourne<br />Volcanic Field, useful for interpretation of geophysical surveys designed to shed light on the structure of the<br />crust ...
Egidio Armadillo, Paolo Chiozzi, Massimo Verdoya, Vincenzo Pasquale,   +3 more
doaj   +1 more source

SEPARATION OF POTASSIUM ISOTOPES IN VALONIA AND NITELLA [PDF]

Journal of General Physiology, 1940
The ratio of K39 ÷ K41 appears to be lower in the sap of Valonia and Nitella than in the environment, indicating that the living cell can separate these isotopes to some extent. Experiments with a mixture of guaiacol and p-cresol suggest that a similar separation may occur here but further experiments are needed.
openaire   +2 more sources

Mechanisms of Aristolochic Acid Resistance in Specialist Butterflies and Evolutionary Insights for Potential Protective Pathways

Advanced Science, EarlyView.
The study provides an extreme example of insect adaptation to highly toxic defenses of host plants, and investigates the complex strategies to resist carcinogenic aristolochic acids, including physical isolation, metabolic detoxification, and DNA repair.
Yang Luan, Yubo Zhang, Jingjing Li, Jianqing Zhu, Yuyang Lei, Yushi Hu, Zhenqiang Xin, Tianpei Xie, Jiang Zheng, Yuanyuan Lin, Jingjing Shen, Yiyi Cao, Xinyue You, Jing Xi, Jiaying Wu, Weiying Liu, Xinyu Zhang, Yuanting Zheng, David J. Lohman, Leming Shi, Wei Zhang   +20 more
wiley   +1 more source

POTASSIUM-ARGON ANALYSIS OF DOMAL SALT BY STEPWISE DISSOLUTION [PDF]

Journal of Sciences, Islamic Republic of Iran, 1995
Potassium-argon analysis by stqwise dissolution provides a way to measure in detail the distribution of argon isotopes and potassium in rock salt. The method can be used for salt that contains only trace amounts of potassium, because the potassium and ...
doaj  

The Nuclear Structure for Exotic Neutron-Rich of 42, 43, 45,47K Nuclei

مجلة بغداد للعلوم, 2016
In this paper the proton, neutron and matter density distributions and the corresponding root mean square (rms) radii of the ground states and the elastic magnetic electron scattering form factors and the magnetic dipole moments have been calculated for ...
Baghdad Science Journal
doaj   +1 more source

The Maize ZmbHLH118 Transcription Factor Regulates Vacuolar Nitrate Loading by the NO3− Transporter ZmCLCa

Advanced Science, EarlyView.
In maize, the bHLH transcription factor ZmbHLH118 directly binds to the promoter of ZmCLCa and inhibits its expression. Tonoplast‐localized ZmCLCa mediates NO3− influx into the vacuole to regulate intracellular NO3− homeostasis, modulating nitrate uptake and metabolism, plant growth, and grain yield.
Chaonan Zhang, Elsa Demes‐Causse, Xujian Li, Zhenhui Guo, Hanshu Zhao, Huairong Cao, Yajing Song, Lijun Mu, Kaikai Zhang, Jing Zhang, Zhongtao Jia, Lixing Yuan, Alexis De Angeli, Jingbo Zhang   +13 more
wiley   +1 more source

Therapeutic Gases in Biomedicine: Updates on Nitric Oxide and Beyond

Advanced Science, EarlyView.
Therapeutic gases, including NO, CO, H2S, H2, CO2, O2, and Xe, play vital roles in cellular signaling and repair. This review highlights the emerging carriers and delivery systems that enable controlled, localized gas release for diagnostic and therapeutic applications.
Syed Muntazir Andrabi, Navatha Shree Sharma, Imran Ibn Gani Rather, S. M. Shatil Shahriar, Jingwei Xie   +4 more
wiley   +1 more source

Polydopamine‐Encapsulated Probiotics Restore Gut Homeostasis and Reinstate Macrophage Efferocytosis in Systemic Lupus Erythematosus

Advanced Science, EarlyView.
Polydopamine‐encapsulated probiotics restore gut homeostasis and reinstate macrophage efferocytosis, thereby reestablishing immune tolerance and mitigating systemic autoimmunity, highlighting a bioengineered microbiota‐based therapeutic strategy for SLE.
Ruimiao Wu, Mei Liu, Changxing Gao, Cheng Zhao, Feijie Zhao, Shuqing Dong, Bo Zhang, Qianmei Liu, Wenqian Zhang, Ming Zhao, Qianjin Lu   +10 more
wiley   +1 more source

Marine clay maturation induces systematic silicon isotope decrease in authigenic clays and pore fluids

Communications Earth & Environment
Marine silicate alteration exerts a major influence on marine carbon and cation cycles, but has proven difficult to quantify. In this context, silicon isotopes of marine pore fluids became an important tracer.
Sonja Geilert, Daniel A. Frick, April N. Abbott, Stefan C. Löhr   +3 more
doaj   +1 more source

Evidence of the Uyunbulak Salt Lake Water Recharge in the Kumish Basin, Xinjiang, China, from Boron Isotopes

Geofluids, 2023
The reserves of nitrate (NO3-) mineral resources in the Turpan-Hami Basin in Xinjiang rank second after those in the Atacama Desert in Chile, South America.
Xuehai Ma, Yunqi Ma, Huaide Cheng, Changzhong Li, Huanen Gu, Haiyun Zhang, Qingyu Hai   +6 more
doaj   +1 more source