Results 21 to 30 of about 147,922 (292)

Unnatural Amino Acid and Emerging Chemistry Approaches to Map RNA–Protein Interactions

open access: yesAngewandte Chemie, EarlyView.
This review highlights emerging chemistries for mapping RNA–protein interactions, including genetically encoded unnatural amino acids, novel photocrosslinkers, and non‐photoactivatable crosslinking systems. We compare their mechanisms, reactivity and applications, outlining how these next‐generation tools enable higher‐resolution, site‐specific ...
Eryn Lundrigan   +3 more
wiley   +2 more sources

Cyclotron Production of Unconventional Radionuclides for PET Imaging: the Example of Titanium-45 and Its Applications

open access: yesInstruments, 2018
Positron emitting radionuclides are used to label different compounds, allowing the study of the major biological systems using PET (positron emission tomography) imaging.
Pedro Costa   +3 more
doaj   +1 more source

The activity concentrations of 40K, 226Ra, 232Th, 238U and 7Be in moss from spas in eastern Serbia in the period 2000-2012 [PDF]

open access: yesArchives of Biological Sciences, 2014
In this work we present the activity concentrations of natural radionuclides 40K, 226Ra, 232Th, 238U and 7Be in mosses. One hundred and sixty-seven moss samples were collected between 2001 and 2012 from the territory of the Sokobanja, Banja ...
Čučulović Ana   +2 more
doaj   +1 more source

The Study of Food Safety of the National Product «Kurt», Produced at the Enterprises of the East Kazakhstan Region

open access: yesАлматы технологиялық университетінің хабаршысы, 2022
The article presents the results of a study of the national product "Kurt" produced at the enterprises of the East Kazakhstan region. A huge danger for humans is the entry of xenobiotics into the body together with plant, animal food and water, which ...
Sh. K. Shakupbekova   +4 more
doaj   +1 more source

18F‐Radiopharmaceutical Diversification Enabled by Deaminative Cross‐Electrophile Couplings

open access: yesAngewandte Chemie, EarlyView.
A general Ni‐mediated (C)sp2–(C)sp3 cross‐coupling expedites access to 18F‐radiopharmaceuticals, essential for positron emission tomography imaging and drug discovery. This late‐stage diversification approach was implemented across three user‐friendly automated protocols affording 18F‐radiotracers in sufficient quantities for imaging.
Isabella F. Ogilvy   +13 more
wiley   +2 more sources

Elemental concentrations and soil-to-moss transfer factors of radionuclides in the environment of North Kosovo and Metohija [PDF]

open access: yesBulletin of Natural Sciences Research, 2020
This paper deals with investigations of elemental concentrations and soil-to-moss transfer factors of radionuclides in area of municipalities Kosovska Mitrovica and Zubin Potok. Twelve samples of soil and moss Hypnum cupressiforme Hedw.
Gulan Ljiljana   +3 more
doaj  

Exploring New Frontiers in Marine Radioisotope Tracing – Adapting to New Opportunities and Challenges

open access: yesFrontiers in Marine Science, 2020
Radioisotopes have been used in earth and environmental sciences for over 150 years and provide unique tools to study environmental processes in great detail from a cellular level through to an oceanic basin scale.
Tom Cresswell   +8 more
doaj   +1 more source

Effects of Ionizing Radiation on Flora Ten Years after the Fukushima Dai-ichi Disaster

open access: yesPlants, 2022
The aim of this work is to analyze the effects of ionizing radiation and radionuclides (like 137Cs) in several higher plants located around the Fukushima Dai-ichi Nuclear Power Plant (FNPP), evaluating both their adaptive processes and evolution.
Gian Marco Ludovici   +5 more
doaj   +1 more source

Extreme value theory applied to the millennial sunspot number series [PDF]

open access: yes, 2018
In this work, we use two decadal sunspot number series reconstructed from cosmogenic radionuclide data (14C in tree trunks, SN-14C and 10Be in polar ice, SN-10Be) and the Extreme Value Theory to study variability of solar activity during the last 9 ...
Acero, F. J.   +4 more
core   +2 more sources

Study of the 2H(3He, p0)4He nuclear reaction for deuterium depth profiling

open access: yesNuclear Materials and Energy
The differential cross sections of the 2H(3He, p0)4He reaction have been determined at six detection angles (120°, 130°, 140°, 150°, 160° and 170°) in the energy range between 300 and 4000  keV, with steps of 30 to 100 keV.
Varvara Foteinou   +7 more
doaj   +1 more source

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