sandén, hans
The growth of forest trees in the relatively young soils of Europe has historically been limited by nitrogen (N). The high anthropogenic N deposition and intense forest management during the last century, however, have caused forest trees in large areas to show signs of being limited by phosphorus (P) or base cations. This indicates that the curren...
Hasemer, Heath Borevitz, Justin Buss, Wolfram
Published in
Frontiers in Climate
The removal of atmospheric carbon dioxide (CO2) is now essential to meet net zero goals and limit the impacts of climate change. Enhanced weathering is a method of sequestering CO2 that involves the distribution of finely ground silicate rocks over agricultural land. The weathering of these silicate rocks releases cations into solution which can ba...
beisenova, raikhan tussupova, kamshat tazitdinova, rumiya tulegenova, symbat rakhymzhan, zhanar orkeyeva, ainur alkhanova, yerkenaz myrzagaliyeva, anar nugmanov, askar zhupysheva, aktoty
...
Water quality in rural areas of developing countries is a notable problem. In this article, drinking water quality from eleven villages in the Pavlodar and the Akmola region of Kazakhstan was analyzed. Questionnaires of village respondents and chemical components of drinking water were analyzed to identify the quality of drinking water. In each of ...
devi, ningombam linthoingambi yadav, ishwar chandra kumar, amrendra
Despite extensive research on particulate matter (PM) pollution in India’s Indo-Gangetic Plain (IGP), source apportionment remains challenging. This study investigates the effect of particulate matter (PM10)-associated water soluble inorganic ions (WSIIs) on ambient air concentration across the middle IGP from January to December 2018. Moreover, th...
chao, li zhongren, wu zhihang, wu chen, xianggen cao, yijun
The significance of froth rheology in affecting flotation performance is widely acknowledged. Clays could deteriorate flotation performance by altering froth rheology. The presence of cations further complicates the flotation system. Thus far, the interaction between clay minerals and cations and their impact on froth rheology remains unclear. The ...
Parra-Terraza, Saúl
Abstract The methodology for mixture design can be used to optimize the proportions of ions in nutrient solution, thereby maximizing crop yield; however, it is rarely used. The aim of this work was to apply a mixture design to evaluate nutrient solutions with different proportions of K+, Ca2+ and Mg2+ on the average weight, number and yield of frui...
Choudhury, Dipanjana Lam, Ching Ching Farag, Nadia L Slaughter, Jonathan Bond, Andrew D Goodman, Jonathan M Wright, Dominic S
Published in
Chemistry (Weinheim an der Bergstrasse, Germany)
Owing to its high natural abundance compared to the commonly used transition (precious) metals, as well as its high Lewis acidity and ability to change oxidation state, aluminium has recently been explored as the basis for a range of single-site catalysts. This paper aims to establish the ground rules for the development of a new type of cationic a...
Giles, Jason B Martinez, Kiana L Steiner, Heidi E Klein, Andrew Ooi, Aikseng Pryor, Julie Sweitzer, Nancy Fuchs, Deborah Karnes, Jason H
Published in
Research square
Heparin-induced thrombocytopenia (HIT) is an antibody-mediated immune response against complexes of heparin and platelet factor 4 (PF4). The electrostatic interaction between heparin and PF4 is critical for the anti-PF4/heparin antibody response seen in HIT. The binding of metal cations to heparin induces conformational changes and charge neutraliz...
a. cary, francesca c. deamer, david w. damer, bruce f. fagents, sarah a. ruttenberg, kathleen c. donachie, stuart p.
Early Mars was likely habitable, but could life actually have started there? While cellular life emerged from prebiotic chemistry through a pre-Darwinian selection process relevant to both Earth and Mars, each planet posed unique selection ‘hurdles’ to this process. We focus on drivers of selection in prebiotic chemistry generic to Earth-like world...
Schmid, Jonas R. Wiesner, Anja Voßnacker, Patrick Jansen, Martin Riedel, Sebastian
Published in
Zeitschrift für Naturforschung B
The compounds [Me3N(C6H3(CF3)2)][BF4] and [Me3N(C6H3(CH3)2)][BF4] were synthesized from commercially available starting materials and fully characterized by single-crystal X-ray diffraction, NMR, IR and Raman spectroscopy, as well as mass spectrometry. Both ammonium cations show potential for applications in crystal engineering due to their structu...
