Results 101 to 110 of about 11,026 (264)

Isotopic Studies of the Body Potassium Content in Thyrotoxicosis.

Experimental Biology and Medicine, 1953
Summary1. A radioactive isotope of potassium (K42) was used to determine the exchangeable potassium content (Ke) in 13 subjects with untreated thyrotoxicosis. The Ke values were lower in untreated thyrotoxic males than in normal male subjects. It is concluded that the low Ke values could be attributed to a decrease in the total muscle mass of the body,
openaire   +2 more sources

Decoupling climate and human impacts on the nitrogen cycle during the Irish Bronze Age

Journal of Quaternary Science, EarlyView.
ABSTRACT Disentangling climate variability and human activity in past nitrogen cycling is key to understanding ecosystems. Previous studies in Ireland observed a widespread, permanent shift in terrestrial nitrogen cycling during Later Prehistory, potentially linked to intensifying land‐use.
Sarah Ferrandin, Gill Plunkett, Neil Ogle   +2 more
wiley   +1 more source

CLINOPTILOLITE WITH CESIUM IMMOBILIZATION TO POTASSIUM MAGNESIUM PHOSPHATE MATRIX

East European Journal of Physics, 2017
The possibility of potassium magnesium phosphate (PMP) matrix application for immobilization of clinoptilolite with simulator of radioactive cesium isotopes was investigated.
S. Yu. Sayenko, V. A. Shkuropatenko, N. P. Dikiy, R. V. Tarasov, K. A. Ulybkina, O. Y. Surkov, L. M. Litvinenko   +6 more
doaj  

RADIONUCLIDES IN THE FOOD CHAIN: FOCUS ON ANIMAL - DERIVED FOOD

Journal of Agriculture and Plant Sciences
The paper presents an analytical overview of the occurrence, movement, and accumulation of both natural and anthropogenic radionuclides in food of animal origin.
Aleksandra Angeleska, Ljupco Angelovski, Risto Uzunov, Radmila Chrcheva Nikolovska, Igor Esmerov, Dimitar Nakov, Elizabeta Dimitrieska-Stojkovikj   +6 more
doaj   +1 more source

Does Palsa Thaw in Northern Finland Contribute to Remobilisation of Metals Accumulated in Peat Into Surface Waters?

Land Degradation &Development, EarlyView.
ABSTRACT Permafrost is rapidly degrading in the sporadic zone, including palsa mires in Scandinavia. Peatlands in the area have likely accumulated heavy metals from atmospheric deposition of industrial contaminants in the wider region. As the palsa mire chemical composition is not well known, and in other permafrost regions the permafrost thaw may ...
Joanna Katarzyna Jóźwik, Krystyna Kozioł, Marcin Frankowski, Marta Jakubiak, Kamil Nowiński, Mariusz Jędrysek, Danuta Szumińska, Żaneta Polkowska   +7 more
wiley   +1 more source

Impact of Nitrogen Deposition on Carbon and Nitrogen Cycling in Peatlands Under Land‐Use Change

Land Degradation &Development, EarlyView.
ABSTRACT Increasing nitrogen (N) deposition significantly alters carbon and N dynamics in peatlands by affecting microbial processes, enhancing greenhouse gas emissions and nutrient leaching into adjacent waters. However, how peatland conversion for agriculture and forestry influences the fate of added N under elevated atmospheric deposition remains ...
Yujing Deng, Kyle S. Boodoo, Klaus‐Holger Knorr, Stephan Glatzel   +3 more
wiley   +1 more source

Mass spectrometry imaging of N‐linked glycans: Fundamentals and recent advances

Mass Spectrometry Reviews, EarlyView.
Abstract With implications in several medical conditions, N‐linked glycosylation is one of the most important posttranslation modifications present in all living organisms. Due to their nontemplate synthesis, glycan structures are extraordinarily complex and require multiple analytical techniques for complete structural elucidation.
Tana V. Palomino, David C. Muddiman
wiley   +1 more source

Nutritional Composition and Safety Aspects of Deep-Sea Whelks (Buccinum tenuissimum Kuroda)

Foods
The deep-sea whelk Buccinum tenuissimum Kuroda is highly sought-after as food in East Asian countries, notably, Korea and Japan. However, it lacks official recognition as a food product in Korea. This study aimed to assess its nutritional composition and
Sana Mansoor, Jin-Hwa Lee, Khawaja Muhammad Imran Bashir, Jae-Hak Sohn, Jae-Suk Choi   +4 more
doaj   +1 more source

Impacts of reindeer grazing on phosphorus sorption and nutrient availability in a tundra site

Oikos, EarlyView.
Reindeer Rangifer tarandus, a large circumpolar herbivore, can influence whether nitrogen (N) or phosphorus (P) is the primary limiting nutrient in tundra plant communities. Specifically, findings from a site in northern Scandinavia suggest that under conditions where reindeer grazing stimulates inorganic N availability, grazing may drive ecosystems ...
Jerzy Szejgis, Johan Olofsson, Henni Ylänne, Michael J. Gundale, Reiner Giesler, Maja K. Sundqvist   +5 more
wiley   +1 more source

Mineral Speciation for CO2 Captured by Potassium Hydroxide

ChemistryOpen, EarlyView.
Multimodal and deconvolution analysis of the crystalline and amorphous mineral products from the rapid capture of CO2 in aqueous, aqueous‐ethanol, and aqueous‐acetone solutions of potassium hydroxide by complementary single‐crystal and powder X‐ray diffraction, and high field 1H, 13C, and 39K NMR, provides new insight into the speciation of both KHCO3‐
Ehsan Ezzatpour Ghadim, Stephanie Bachmann, Rodrigo S. Correa, Dinu Iuga, Joanna F. Collingwood, Peter J. Sadler   +5 more
wiley   +1 more source