Results 111 to 120 of about 64,717 (306)

Ratio of natural isotopes of nitrogen. I. Primary results: soils of Dombes [Translation from: Revue d'Ecologie et de Biologie du Sol 14, 279-287, 1977] [PDF]

, 1980
Utilization of the heavy isotope of nitrogen as a tracer has found numerous applications in soil biology. It allows better definition of different stages of the nitrogen cycle, in particular the immobilization-mineralization cycle.
Chalamet, A., Domenach, A. M., Pachiaudi, C.   +2 more
core  

Highly Efficient Extraction of 212 Pb/212Bi from the Decay Chain of 232Th‐Based on Anion Exchange in Bromide Medium

Advanced Science, EarlyView.
This work provides an effective strategy for selectively extracting 212Pb and 212Bi from the decay chain of 232Th as well as its mechanism illustration. Using the novel strategy, 2.07 MBq of 212Pb is successfully separated from 232Th and its daughters, which enables the supply of 212Pb/212Bi directly from the abundant natural thorium resource to be ...
Lifeng Chen, Wannian Feng, Yuezhou Wei, Xuexiang He, Shaoying Wang, Zhongyuan Zhou, Qiang Wu, Ningchao Zheng, Xiangbiao Yin, Wenlong Li, Lingling Su, Shunyan Ning   +11 more
wiley   +1 more source

Solar‐Driven Ammonia Synthesis From Nitrate Reduction Paired With CO2 Capture for Sustainable Agriculture via a Robust CuPd Heterojunction

Angewandte Chemie, EarlyView.
Laser‐assisted synthesis of CuPd amorphous/crystalline heterojunction demonstrates >80% Faradaic efficiency for nitrate‐to‐ammonia electroreduction across wide potential windows. The integrated solar‐powered electrolyzer achieves 6% solar‐to‐ammonia energy efficiency at 0.4 sun, 6–20 mg h−1 CO2 capture rate, and stability exceeding 100 h.
Weihua Guo, Xiaofeng Huang, Yangbo Ma, Yun Song, Zihao Li, Qiang Zhang, Yinger Xin, Jianjun Su, Mingming He, Ruixuan Wang, Rui Xue, Xing Li, Shibo Xi, Jian Wang, Shenlong Zhao, Siwei Zhang, Ben Zhong Tang, Alex K. Y. Jen, Ruquan Ye   +18 more
wiley   +2 more sources

Determination of ¹⁰B/¹¹B Isotopic Ratio and Concentration of Boron in Stainless Steel by ICP MS

East European Journal of Physics
The large thermal neutron absorption cross-section of the 10B enables the use of boron as a neutron absorber for reactivity control in nuclear reactors.
Inna Afanasieva, Serhii Afanasiev, Dmytro Kutnii, Dmytro Burdeinyi, Stanislav Vanzha, Nataliia Rud', Oleksandr Medvedev   +6 more
doaj   +1 more source

Impacto ambiental provocado pelo P em dietas suplementadas com enzima fitase e proteína ideal para suínos em crescimento: estudo do fluxo do P no metabolismo animal Environmental impact provoked by P in diets supplemented with phytase enzyme and ideal protein for growing pigs: study of the P flow in the animal metabolism

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2010
Avaliou-se a possibilidade de redução da concentração do fósforo inorgânico em dietas formuladas para suínos de acordo com o conceito de proteína ideal, utilizando-se um modelo experimental para o estudo do fluxo do P no metabolismo animal. Utilizaram-se
J.A. Moreira, D.M.S.S. Vitti, R.M. Patino, T.S. Silva, I.C. Bueno, B. Berenchtein   +5 more
doaj   +1 more source

Effects of Breastfeeding on Maternal Body Composition in Moroccan Lactating Women during Twelve Months after Birth Using Stable Isotopic Dilution Technique. [PDF]

Nutrients, 2021
Rabi B, Benjeddou K, Idrissi M, Rami A, Mekkaoui B, El Hamdouchi A, Benkirane H, Barkat A, Saeid N, El Kari K, Aguenaou H.   +10 more
europepmc   +1 more source

OsGSK2‐OsTCP19 Module Integrates Nitrogen and Brassinosteroid Signaling to Regulate Nitrogen Utilization and Root Growth in Rice

Advanced Science, EarlyView.
OsGSK2‐OsTCP19 module regulating nitrate response and lateral root (LR) development. Low‐nitrate condition results in reduced BR response, accumulation of OsGSK2 and phosphorylated OsTCP19, which suppresses the expression of nitrate‐responsive genes and LR‐development genes and impairs rice growth.
Yongqiang Liu, Weiwei Li, Xiaohui Ma, Xiaohan Wang, Yarong Shi, Xiahe Huang, Xinran Li, Yingchun Wang, Hongning Tong, Bin Hu, Wenbin Zhou, Chengcai Chu   +11 more
wiley   +1 more source

Synthesis of 11, 12-2H2- and 11, 12-3H2-labeled chenodeoxycholic and lithocholic acids

Journal of Lipid Research, 1976
Deuterium- and tritium-labeled chenodeoxycholic acid and lithocholic were prepared by catalytic reduction of their respective Δ11 derivatives. Structures of the intermediates and their isotopic purity were verified by chemical ionization and electron ...
A E Cowen, A F Hofmann, D L Hachey, P J Thomas, D T Belobaba, P D Klein, L Tökes   +6 more
doaj   +1 more source

Multifunctional Eutectic Mixtures Enable Integrated Recovery of U, Pu, and Sr From Nuclear Waste

Advanced Science, EarlyView.
A novel class of multifunctional eutectic mixtures, crafted from crown ether and organophosphorus molecules, achieves highly efficient, simultaneous recovery of uranium, plutonium, and strontium from nuclear waste. The material operates via a dual “coordination‐encapsulation” mechanism within self‐assembled reverse‐micelle structures, offering a ...
Yifan Wang, Yanjun Lv, Qilong Tang, Huaixin Hao, Jianfeng Jia, Gang Ye, Jing Chen, Chao Xu, Zhipeng Wang   +8 more
wiley   +1 more source

The use of isotopic carbon in a study of the metabolism of anthanilic acid in Neurospora [PDF]

, 1949
The finding by Tatum, Banner, and Beadle (l), that the tryptophanless Neurospora mutant strain 10575 accumulates anthranilic acid, which in turn can be utilized for growth of strain 40008, has provided evidence that anthranilic acid is a biochemical ...
Langham, Wright H., Leifer, Edgar, Mitchell, Herschel K., Nyc, Joseph F.   +3 more
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