Results 31 to 40 of about 2,936,123 (351)

Differences in Stable Isotopes in Precipitation between Day and Night: A Case Study of Changsha

Redai dili, 2021
The relative abundance of stable isotopes in precipitation plays a vital role in the water cycle analyses and diagnosing atmospheric circulation patterns.
Chang Xin, Zhang Xinping, Liu Zhongli, Wang Rui   +3 more
doaj   +1 more source

Comparison of different methods to determine the degree of peat decomposition in peat bogs [PDF]

Biogeosciences, 2014
Peat humification or decomposition is a frequently used proxy to extract past time changes in hydrology and climate from peat bogs. During the past century several methods to determine changes in peat decomposition have been introduced.
H. Biester, K.-H. Knorr, J. Schellekens, A. Basler, Y.-M. Hermanns   +4 more
doaj   +1 more source

Iterative systems, a topological and categorial approach

Journal of Numerical Analysis and Approximation Theory, 1973
Not available.
M. Jalobeanu
doaj   +2 more sources

A stable isotope method using a [2H5]glycerol bolus to measure very low density lipoprotein triglyceride kinetics in humans

Journal of Lipid Research, 1999
We have developed a method using a bolus of [2H5]glycerol to determine parameters of VLDL-triglyceride (VLDL-TG) turnover and have compared the data to that obtained using simultaneously a bolus of [2-3H]glycerol in six young normolipidemic men.
Simone Lemieux, Bruce W. Patterson, André Carpentier, Gary F. Lewis, George Steiner   +4 more
doaj   +1 more source

The Complexity of Moisture Sources Affects the Altitude Effect of Stable Isotopes of Precipitation in Inland Mountainous Regions

Water Resources Research
From a global perspective, the stable isotope altitude effect is crucial for understanding climate information. However, the intensity of this effect can be influenced by the source of moisture, particularly in inland mountainous regions where the ...
Longhu Chen, Guofeng Zhu, Xinrui Lin, Rui Li, Siyu Lu, Yinying Jiao, Dongdong Qiu, Gaojia Meng, Qinqin Wang   +8 more
semanticscholar   +1 more source

Stable Isotopes of Precipitation in China: A Consideration of Moisture Sources

Water, 2019
An accurate representation of the spatial distribution of stable isotopes in modern precipitation is vital for interpreting hydrological and climatic processes.
Yanlong Kong, Ke Wang, Jie Li, Z. Pang
semanticscholar   +1 more source

Centrifugal Separation of Titanium Isotopes Using Titanium Tetrachloride as Processing Gas

Journal of Isotopes, 2020
Stable isotope techniques have been widely used in modern agriculture, ecological environment, medical diagnosis, nuclear industry, fundamental physics research, and so on. Natural titanium has 5 stable isotopes.
PEI Gen;PAN Jianxiong;ZHOU Mingsheng;JIAN Conghui
doaj   +1 more source

The Preparation of Carbon and Nitrogen Stable Isotopes Reference Materials Using Sediments from the Bohai and East China Seas

Yankuang ceshi, 2017
The stable isotope of carbon and nitrogen (δ13C and δ15N) in marine sediments have received much attention as they can be used to trace the sources of organic matter and are helpful in understanding the carbon cycle, climate change and the transformation
QIN De-di, HE Xing-liang, ZHANG Yuan-yuan, LI Feng, CHEN Yu-feng, ZHANG Pei-yu   +5 more
doaj   +1 more source

Ideas and perspectives: Tracing terrestrial ecosystem water fluxes using hydrogen and oxygen stable isotopes – challenges and opportunities from an interdisciplinary perspective

Biogeosciences, 2018
. In this commentary, we summarize and build upon discussions that emerged during the workshop “Isotope-based studies of water partitioning and plant–soil interactions in forested and agricultural environments” held in San Casciano in Val di Pesa, Italy,
D. Penna, L. Hopp, F. Scandellari, S. Allen, P. Benettin, M. Beyer, J. Geris, J. Klaus, J. Marshall, L. Schwendenmann, T. Volkmann, Jana von Freyberg, Anam Amin, N. Ceperley, M. Engel, J. Frentress, Y. Giambastiani, J. McDonnell, G. Zuecco, P. Llorens, R. Siegwolf, T. Dawson, J. Kirchner   +22 more
semanticscholar   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source