Results 51 to 60 of about 84,041 (333)

Novel Technique for Ultra-sensitive Determination of Trace Elements in Organic Scintillators [PDF]

, 2003
A technique based on neutron activation has been developed for an extremely high sensitivity analysis of trace elements in organic materials. Organic materials are sealed in plastic or high purity quartz and irradiated at the HFIR and MITR.
A. Piepke, Andersson, Angloher, B. Tipton, Boger, D. Glasgow, De Soete, Eguchi, Hentig, Hentig, Ishimori, Kim, L.-W. Hu, R. Swinney, R.D. McKeown, Z. Djurcic   +15 more
core   +3 more sources

Indoleamine 2,3‐dioxygenase 1 inhibition reverses cancer‐associated fibroblast‐mediated immunosuppression in high‐grade serous ovarian cancer

FEBS Open Bio, EarlyView.
CAF‐mediated immunosuppression in ovarian cancer is driven by IDO1, reducing T‐cell function. Inhibiting IDO1 restores T‐cell proliferation and cytotoxicity, increases cancer cell apoptosis, and may help overcome CAF‐induced immune suppression in high‐grade serous ovarian cancer. Targeting IDO1 may improve antitumor immunity.
Hyewon Lee, Jung Yoon Ho, In Sun Hwang, Youn Jin Choi   +3 more
wiley   +1 more source

The Thorium Molten Salt Reactor : Moving on from the MSBR [PDF]

, 2005
A re-evaluation of the Molten Salt Breeder Reactor concept has revealed problems related to its safety and to the complexity of the reprocessing considered.
A. Nuttin, C. Garzenne, C. Le Brun, D. Heuer, D. Lecarpentier, E. Liatard, E. Merle-Lucotte, E. Walle, J. Wilson, J.-M. Loiseaux, L. Mathieu, Nuttin, O. Méplan, R. Brissot, Rosenthal   +14 more
core   +2 more sources

Domain associated with zinc fingers‐containing NF90‐NF45 complex inhibits m6A modification of primary microRNA by suppressing METTL3/14 activity

FEBS Open Bio, EarlyView.
NF90–NF45 functions as a negative regulator of methyltransferase‐like 3/14 (METTL3/14)‐mediated N6‐methyladenosine (m6A) modification on primary microRNAs (pri‐miRNAs). NF90–NF45 binds to anti‐oncogenic pri‐miRNAs and inhibits their m6A modification, thereby suppressing the biogenesis of anti‐oncogenic miRNAs.
Takuma Higuchi, Shunsuke Morioka, Keiko Morisawa, Kazutsugu Matsukawa, Shingo Ashida, Takeshi Suzuki, Shuji Sakamoto   +6 more
wiley   +1 more source

Synthesis of thorium tetrafluoride (ThF4) by ammonium hydrogen difluoride (NH4HF2)

Nuclear Engineering and Technology, 2019
The present study aims to investigate the fluorination of thorium oxide (ThO2) by ammonium hydrogen difluoride (NH4HF2). Fluorination was performed at room temperature by mixing ThO2 and NH4HF2 at different molar ratios, which was then left to react for ...
Che Nor Aniza Che Zainul Bahri, Aznan Fazli Ismail, Amran Ab. Majid   +2 more
doaj   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Reflux Dissolution of Thorium Dioxide in Nitric Acid

He huaxue yu fangshe huaxue
This study aims to investigate the reflux dissolution process of thorium dioxide in nitric acid, seeking an alternative to the current fluoride ion-dependent dissolution methods to prevent corrosion of stainless steel dissolvers and subsequent processing
Zong-hui LU, Ting YU, Bin LI, Hui HE, Ye ZHANG   +4 more
doaj   +1 more source

Comparison of neutronic behavior of UO2, (Th-233U)O2 and (Th-235U)O2 fuels in a typical heavy water reactor

Nuclear Engineering and Technology, 2015
The research carried out on thorium-based fuels indicates that these fuels can be considered as economic alternatives with improved physical properties and proliferation resistance issues.
Seyed Mohammad Mirvakili, Masoomeh Alizadeh Kavafshary, Atiyeh Joze Vaziri   +2 more
doaj   +1 more source

Prospects for a Nuclear Optical Frequency Standard based on Thorium-229

, 2009
The 7.6-eV-isomer of Thorium-229 offers the opportunity to perform high resolution laser spectroscopy of a nuclear transition. We give a brief review of the investigations of this isomer.
Okhapkin, M., Peik, E., Tamm, Chr., Zimmermann, K.   +3 more
core   +1 more source

A radiometric airborne geophysical survey of the Isle of Wight [PDF]

, 2011
A high resolution airborne geophysical survey across the Isle of Wight and Lymington area conducted in 2008 provided the first modern radiometric survey across the geological formations that characterise much of southern England.
Beamish, David, White, James C.
core   +1 more source