Results 41 to 50 of about 242,031 (247)

Determination of the [¹⁵N]-Nitrate/[¹⁴N]-Nitrate Ratio in Plant Feeding Studies by GC–MS

Molecules, 2019
Feeding experiments with stable isotopes are helpful tools for investigation of metabolic fluxes and biochemical pathways. For assessing nitrogen metabolism, the heavier nitrogen isotope, [15N], has been frequently used.
Sebastian Schramm, Maria Fe Angela Comia Boco, Sarah Manzer, Oliver König, Tong Zhang, Fatima Tuz Zohora Mony, Adebimpe Nafisat Adedeji-Badmus, Brigitte Poppenberger, Wilfried Rozhon   +8 more
doaj   +1 more source

Nitrate Regeneration and Loss in the Central Yellow Sea Bottom Water Revealed by Nitrogen Isotopes

Frontiers in Marine Science, 2022
The Yellow Sea (YS) is an epicontinental sea framed by the densely populated mainland of China and the Korean peninsula. Human activities over the last decades resulted in heavily increasing discharge of reactive nitrogen into the YS, which created ...
Shichao Tian, Birgit Gaye, Jianhui Tang, Yongming Luo, Yongming Luo, Niko Lahajnar, Kirstin Dähnke, Tina Sanders, Tianqi Xiong, Weidong Zhai, Kay-Christian Emeis, Kay-Christian Emeis   +11 more
doaj   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

The hidden danger: prolonged exposure to inorganic contaminants and kidney health in adolescents

Renal Failure
Research on the impact of prolonged exposure to inorganic contaminants, such as perchlorate, nitrate, and thiocyanate (PNT), on the kidney health of individuals in the 12 ∼ 19 age range is lacking.
Xiaoran Xue, Zaiqiu Zhang, Marady Hun, Min Wen, Mingyi Zhao, Qingnan He   +5 more
doaj   +1 more source

A comparative evaluation of surface water quality standards for lakes and fish ponds from Bucharest and vicinity

Romanian Journal of Ecology & Environmental Chemistry, 2020
Monitoring of lakes and ponds water quality parameters is important to evaluate the interactions between quality and effects on aquatic organisms’ growth and health.
Gina Vasile Scaeteanu, Roxana Maria Madjar, Mala-Maria Stavrescu-Bedivan   +2 more
doaj   +1 more source

Possible Effects of Beetroot Supplementation on Physical Performance Through Metabolic, Neuroendocrine, and Antioxidant Mechanisms: A Narrative Review of the Literature

Frontiers in Nutrition, 2021
Athletes often seek to use dietary supplements to increase performance during exercise. Among various supplements, much attention has been paid to beetroot in recent years.
Hamid Arazi, Ehsan Eghbali
doaj   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

Integrating Raman spectroscopy and optical meters for nitrogen management in broccoli seedlings

Frontiers in Plant Science
Raman spectroscopy enables non-destructive detection of nitrates and other nitrogen-related biochemical markers, including chlorophyll and polyphenols, with unparalleled specificity and sensitivity.
Lorenza Tuccio, Sonia Cacini, Giulia Arati, Carmelo Distefano, Silvia Traversari, Giacomo Fontanelli, Gina Rosalinda De Nicola, Paolo Matteini, Paolo Matteini   +8 more
doaj   +1 more source

Cell wall target fragment discovery using a low‐cost, minimal fragment library

FEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan, Mathew Stanley, Olawale Raimi, Andrew T. Ferenbach, Helge C Dorfmueller, Daan M. F. van Aalten   +5 more
wiley   +1 more source

Norfloxacinium nitrate

IUCrData
In the title salt [systematic name: 4-(3-carboxy-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinolin-7-yl)piperazin-1-ium nitrate], C16H19FN3O3 +·NO3 −, proton transfer from nitric acid to the N atom of the piperazine ring of norfloxacin has occurred to form a molecular salt.
Abdusamat Rasulov, Batirbay Torambetov, Bekmurod Alimnazarov, Shakhnoza Kadirova, Jabbor Suyunov, Yusufjon Nazarov, Jamshid Ashurov   +6 more
openaire   +3 more sources