Results 21 to 30 of about 36,240 (210)

First Calibration and Application of Leaf Wax n-Alkane Biomarkers in Loess-Paleosol Sequences and Modern Plants and Soils in Armenia

Geosciences, 2019
Interpreting paleoenvironmental conditions by means of n-alkane biomarker analyses is challenging because results depend on different influencing factors.
Yesmine Trigui, Daniel Wolf, Lilit Sahakyan, Hayk Hovakimyan, Kristina Sahakyan, Roland Zech, Markus Fuchs, Tilmann Wolpert, Michael Zech, Dominik Faust   +9 more
doaj   +1 more source

Leaf wax n-alkane distributions record ecological changes during the Younger Dryas at Trzechowskie paleolake (northern Poland) without temporal delay [PDF]

Climate of the Past, 2018
While of higher plant origin, a specific source assignment of sedimentary leaf wax n-alkanes remains difficult. In addition, it is unknown how fast a changing catchment vegetation would be reflected in sedimentary leaf wax archives. In particular, for
B. Aichner, F. Ott, F. Ott, M. Słowiński, A. M. Noryśkiewicz, A. Brauer, D. Sachse   +6 more
doaj   +1 more source

N-alkane shape distinctive microbial patterns in Kuroshio Extension

Environment International
Marine microorganisms are primary drivers of the elemental cycling. The interaction between heterotrophic prokaryotes and biomarker (n-alkane) in Kuroshio Extension (KE) remains unclear.
Xin Hu, Shanshan Zhao, Haoshuai Li, Yaping Pan, Zhongxiang Fan, Jinren Lu, Yiming Li, Guodong Song, Honghai Zhang, Qian Liu, Mutai Bao   +10 more
doaj   +1 more source

Quantitative and Qualitative Evaluation of Plant Intake in Laying Hens: n-Alkanes as Predictive Fecal Markers for Dietary Composition Assessment

Animals
The shift in animal welfare standards towards free-range housing for laying hens in the EU has raised questions about changes in dietary composition. Accurate assessment of outdoor plant material intake is crucial for effective feeding strategies.
Laid Dardabou, José Carlos Martínez-Ávila, Markus Werner Schmidt, Károly Dublecz, Christiane Schwarz, Miguel Angel Ibáñez, Martin Gierus   +6 more
doaj   +1 more source

ALKYLARYLKETONE HOMOLOGOUS SERIES FOR DETERMINATION OF KOVATS RETENTION INDICES WITH RP-HPLC USING ACETONITRILE/WATER SYSTEM

Indonesian Journal of Chemistry, 2010
Some factors such as the changes of the stationary phase, temperature, pH-value, mobile-phase composition and flow rate play a crucial role in effecting the sensitivity of retention times in high performance liquid chromatography (HPLC) system. Utilizing
Rinaldi Idroes
doaj   +1 more source

Modeling n-alkane solubility in supercritical CO2 via intelligent methods

Journal of Petroleum Exploration and Production Technology, 2020
Injection of carbon dioxide is a familiar, cost-effective and influential technology of enhancing oil recovery whose application has been limited owing to the low n-alkane solubility in supercritical CO2.
Reza Songolzadeh, Khalil Shahbazi, Mohammad Madani   +2 more
doaj   +1 more source

Partial depletion of plasminogen activator inhibitor‐1 decreases subcutaneous fat cell hypertrophy and liver cholesterol in high‐fat‐fed female mice

FEBS Letters, EarlyView.
Obesity raises blood levels of PAI‐1, a protein linked to metabolic dysfunction‐associated steatotic liver disease in people with obesity. In female mice fed a high‐fat diet, partially lowering PAI‐1 led to smaller subcutaneous fat cells and lower liver cholesterol, without changing body weight or insulin sensitivity.
Claudia E. Ramirez Bustamante, Robert Sharp, Pradip K. Saha, Elizabeth S. Anaya, Elizabeth L. Lieu, Evelyn L. de Groot, Pooja Patel, Mi Jeong Heo, Aaron R. Cox, Kang Ho Kim, Sean M. Hartig   +10 more
wiley   +1 more source

Leaf wax n‐alkane patterns of six tropical montane tree species show species‐specific environmental response

Ecology and Evolution, 2019
It remains poorly understood how the composition of leaf wax n‐alkanes reflects the local environment. This knowledge gap inhibits the interpretation of plant responses to the environment at the community level and, by extension, inhibits the ...
Milan Lana Teunissen van Manen, Boris Jansen, Francisco Cuesta, Susana León‐Yánez, William Daniel Gosling   +4 more
doaj   +1 more source

Leaf wax biomarkers of a high-mountain lake area in western iberia—Implications for environmental reconstructions

Frontiers in Environmental Science, 2022
Leaf wax n-alkane biomarkers are widely used to infer past vegetation dynamics and hydroclimate changes. The use of these compounds strongly relies on the characterization of modern plants.
Ricardo N. Santos, Ricardo N. Santos, Ricardo N. Santos, Enno Schefuß, Lívia Gebara M. S. Cordeiro, Lívia Gebara M. S. Cordeiro, Dulce Oliveira, Dulce Oliveira, Armand Hernández, Alexandre M. Ramos, Alexandre M. Ramos, Teresa Rodrigues, Teresa Rodrigues   +12 more
doaj   +1 more source

Translophagy—A potential link between autophagy impairment and translational errors

FEBS Letters, EarlyView.
Neurodegenerative diseases are characterised by the accumulation of abnormal proteins and protein aggregates, but their origin often remains unknown. We propose that selective autophagy removes damaged protein‐making machinery, preventing errors during protein synthesis.
Mykola V. Korolchuk, Gailing Ma, Robin Antrobus, Diego Manni, Marco Trevisan‐Herraz, Mustafa Khwaja, Max Brown, Gavin D. Richardson, Masaaki Komatsu, Daniel Erskine, Viktor I. Korolchuk, Tetsushi Kataura   +11 more
wiley   +1 more source