Results 51 to 60 of about 17,786 (304)

Metal-Nonmetal Transition in Rubidium Tungsten Bronze RbxWOy [PDF]

open access: yes, 2013
An oxygen concentration dependent metal–nonmetal (MN) transition was observed for Rb0.23WO y with 2.80 3.04, the ρRT of the Rb0.23WO y exhibits a four orders of magnitude increase with a value of 5 Ω cm.
Ting, L. C.; Hsieh, H. H.; Huang, C. T.; Wang, C. B.; Ling, D. C.; Huang, K. J.; Chang, S. J.; Kang, H. H.; Chien, F. Z.; Hor, P. H.
core   +1 more source

The 288.2 K Isothermal Evaporation Experiment of Potassium Precipitation Brine in West Taijinair Salt Lake

open access: yesSeparations
Rubidium and cesium are important strategic resources, and West Taijinar Salt Lake is rich in rubidium and cesium reserves, while the concentration is low and the relationship with coexisting potassium and magnesium ions is complex.
Yousheng Yang   +6 more
doaj   +1 more source

Investigation of an Ultra High Signal-to-noise Ratio Physics Package for the Rubidium Atomic Clock

open access: yesChinese Journal of Magnetic Resonance, 2023
Driven by the demand for satellite navigation and deep space exploration, the performance of lamp-pumped rubidium atomic clock has been greatly improved, and its short-term frequency stability has reached the level of a small coefficient of 10-13τ -1/2 ...
CUI Jiaqi   +7 more
doaj   +1 more source

Heterotropic regulation and negative homotropic cooperativity

open access: yesFEBS Open Bio, EarlyView.
We identified a structural module common to some proteins that couple negative cooperativity with heterotropic regulation, two features that rarely coexist. These proteins are ring‐like and present an ordered asymmetry whereby noncontacting subunits are symmetric, and their tertiary structure differs from that of contacting subunits.
Veronica Morea   +5 more
wiley   +1 more source

Pattern-based optical memory with low power switching in rubidium vapor [PDF]

open access: yes, 2013
We report optical pattern bistability switched with ∼2 μW power beam for two waves counterpropagating in warm rubidium vapor in presence of longitudinal magnetic ...
NIKOLAI KORNEEV ZABELLO   +1 more
core  

Rubidium bis(2-methyllactato)borate monohydrate

open access: yesIUCrData, 2019
The asymmetric unit of the inorganic–organic hybrid salt, poly[aqua[μ4-bis(2-methyllactato)borato]rubidium], [Rb(C8H12BO6)(H2O)]n, comprises a rubidium cation, a bis(2-methyllactato)borate anion, and a water molecule of crystallization.
Govindharajan Gokila   +2 more
doaj   +1 more source

Rubidium-rich feldspars and associated minerals from the Luolamäki pegmatite, Somero, Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 1998
Rubidium feldspar occurs near the core zone of the highly fractionated petalite-subtype Luolamäki granitic pegmatite in intimate intergrowth with other feldspars which are part of a characteristic sequence of alteration of pollucite.
D.K. Teertstra   +2 more
doaj   +1 more source

Rubidium Uptake in Chest Tumors on PET/CT

open access: yesWorld Journal of Nuclear Medicine, 2022
Background Chest tumors are often found incidentally on cardiac scans; we aimed to describe the findings of rubidium (Rb) in incidentally discovered extracardiac tumors.
Jorge D. Oldan   +3 more
doaj   +1 more source

Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level

open access: yesAging and Cancer, EarlyView.
This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley   +1 more source

Rubidium doped nano-hydroxyapatite with cytocompatibility and antibacterial

open access: yesJournal of Asian Ceramic Societies, 2021
Hydroxyapatite (HAp) is a widely used biomaterial because it is the main inorganic component of human bone and teeth. Rubidium (Rb) is a vital trace metal element in human body, and has been reported to possess antibacterial ability and can promote ...
Yanjun Liu, Yanni Tan, Jiangsong Wu
doaj   +1 more source

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