Results 91 to 100 of about 24,534 (223)

Production and relevance of cosmogenic radionuclides in NaI(Tl) crystals

, 2015
The cosmogenic production of long-lived radioactive isotopes in materials is an hazard for experiments demanding ultra-low background conditions. Although NaI(Tl) scintillators have been used in this context for a long time, very few activation data were
Amare, J., Cebrian, S., Cuesta, C., de Solorzano, A. Ortiz, Garcia, E., Ginestra, C., Martinez, M., Olivan, M. A., Ortigoza, Y., Pobes, C., Puimedon, J., Sarsa, M. L., Villar, J. A., Villar, P.   +13 more
core   +1 more source

Expansion of the Eastern Tropical North Pacific Oxygen Minimum Zone During the Last Deglaciation Recorded by Planktic Foraminifera

Paleoceanography and Paleoclimatology, Volume 41, Issue 5, May 2026.
Abstract Climate change is currently driving the expansion of oxygen minimum zones (OMZs), areas of the open ocean with consistently low oxygen levels. Changes in temperature, productivity and consequent respiration, and water mass ventilation drive OMZ expansion and contraction with implications for ecosystem function and biogeochemical cycling ...
Rachel Alcorn, Jorge Feliciano Ontiveros‐Cuadras, Anjaly Govindankutty Menon, Nicolaas Glock, Eric Tappa, Janet Burke, María Luisa Machain Castillo, Catherine Davis   +7 more
wiley   +1 more source

Tryptophan Kynurenine Pathway-Based Imaging Agents for Brain Disorders and Oncology—From Bench to Bedside

Biomolecules
Tryptophan (Trp)-based radiotracers have excellent potential for imaging many different types of brain pathology because of their involvement with both the serotonergic and kynurenine (KYN) pathways.
Erik Stauff, Wenqi Xu, Heidi H. Kecskemethy, Sigrid A. Langhans, Vinay V. R. Kandula, Lauren W. Averill, Xuyi Yue   +6 more
doaj   +1 more source

Triptindane‐9,10,11‐triol: Threefold Hydride Transfer from Lithium Aluminum Hydride as the Key Step to C3‐Symmetrically Trifunctionalized Tribenzo[3.3.3]propellanes

European Journal of Organic Chemistry, Volume 29, Issue 15, 22 April 2026.
Threefold reduction of 9,10,11‐triptindanetrione with LiAlH4 or NaBH4 yields exclusively the C3‐symmetric triol, suggesting an intracomplex (“rolling”) mechanism. However, use of LiAlH4/LiAlD4 (1 : 1) reveals a preceding hydride exchange. Mechanistic implications are discussed including the reduction of the related diketone.
Thorsten Hackfort, Bernhard M. Malorny, Andreas Mix, Beate Neumann, Hans‐Georg Stammler, Dietmar Kuck   +5 more
wiley   +1 more source

Radiolabeling Strategies for Tumor-Targeting Proteinaceous Drugs

Molecules, 2014
Owing to their large size proteinaceous drugs offer higher operative information content compared to the small molecules that correspond to the traditional understanding of druglikeness.
Grant Sugiura, Helen Kühn, Max Sauter, Uwe Haberkorn, Walter Mier   +4 more
doaj   +1 more source

Metal‐Catalyzed C(sp2)–H Bond Functionalization of Indolinone‐ and Indanone‐Type Chemical Platforms En Route Toward Late‐Stage Functionalization

Advanced Synthesis &Catalysis, Volume 368, Issue 8, 15 April 2026.
An in‐depth survey dealing with the aromatic C—H bond functionalization of biologically‐relevant scaffolds featuring the indolinone and indanone core is discussed as they are unique aromatic scaffolds that are 1,2‐doubly fused with small five‐membered rings.
Vanessa Delahaye, Sylvie Dérien, Mathieu Achard, Rafael Gramage‐Doria   +3 more
wiley   +1 more source

Ion–Molecule Reaction Products as Probes and Precursors for Preparative Mass Spectrometry

Chemistry – A European Journal, Volume 32, Issue 14, 15 April 2026.
Ion–molecule reactions in the gas phase of mass spectrometers are important for preparative mass spectrometry because they (1) provide knowledge about the intrinsic reactivity of ions, helping to predict and control their reactivity at interfaces, and (2) generate new complex ions that can be mass selected and deposited on surfaces.
Markus Rohdenburg, Sebastian Kawa, Kay‐Antonio Behrend, Harald Knorke, Jonas Warneke   +4 more
wiley   +1 more source

Research Progress on Deep Removal Technologies for Iodine in Complex Low-Level Radioactive Wastewater

He huaxue yu fangshe huaxue
Radioactive iodine isotopes, particularly the long-lived 129I with its half-life of 15.7 million years and the highly radiotoxic, short-lived 131I (half-life 8.02 days), generated ubiquitously during nuclear fuel cycling and nuclear technology ...
Qiu-hong ZHU, Xue-yan REN, Guo-hao ZHANG, Ning PAN, Ping WANG, Xiao-qin NIE   +5 more
doaj   +1 more source

Investigation of 131I kinetics in the rats organism after a single intake [PDF]

Ядерна фізика та енергетика, 2012
Kinetics of 131I in the organism of the laboratory rats is investigated after a single intake of various activities of isotopes. The isotope content is measured in different organs and tissues. Half-life of 131I has been determined.
I. P. Drozd, A. I. Lypska, L. K. Bezdrobna, V. A. Shytiuk, O. A. Sova   +4 more
doaj  

Review of Past Nuclear Accidents: Source Terms and Recorded Gamma-Ray Spectra [PDF]

, 1997
Airborne gamma ray spectrometry using high volume scintillation detectors, optionally in conjunction with Ge detectors, has potential for making rapid environmental measurements in response to nuclear accidents.
Allyson, J.D., Cresswell, A., Department of the Environment: Radioactive Substances Division, McConville, P., Sanderson, D.C.W.   +4 more
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