Results 81 to 90 of about 1,154,828 (344)

Topographic Development History of the Alaska Range [PDF]

, 2013
he overall goal of this project is to use variations in sediment source through time as a proxy for deciphering the uplift history of the Alaska Range (Fig. 1).
Davis, Kailyn
core  

Anomalous luminescence of subglacial sediment at Haut glacier d'Arolla, Switzerland - a consequence of resetting at the glacier bed? [PDF]

, 2010
<p>Luminescence has the potential to elucidate glacial geomorphic processes because primary glacial sediment sources and transport pathways are associated with contrasting degrees of exposure to light.
Aitken, Aitken, Alley, Alley, Armitage, Bailey, Bateman, Bateman, Berger, Blair, Blake, Boulton, Burbidge, Copland, Dreimanis, Fischer, Fuchs, Fukuchi, Galbraith, Gemmell, Gemmell, Goodsell, Grenfell, Grum, Gurnell, Harbor, Hubbard, Krbetschek, Lee, Lian, Liritzis, Lukas, Murray, Nienow, Pegau, Rhodes, Rhodes, Rink, Sanderson, Sanderson, Sanderson, Sharp, Singhvi, Stone, Swift, Swift, Thomas, Toyoda, Tranter, Wallinga, Wallinga, Wintle, Wintle, Zöller   +53 more
core   +2 more sources

The nicotinamide hypothesis revisited—plant defense signaling integrating PARP, nicotinamide, nicotinic acid, epigenetics, and glutathione

FEBS Letters, EarlyView.
Nicotinamide (NIC) and nicotinic acid (NIA) are proposed as stress signaling compounds in plants. Oxidative stress may lead to single strand breaks (SSB) in DNA, which activate poly(ADP‐ribose) polymerase (PARP). NIC and NIA are then formed from NAD. NIC and NIA can promote epigenetic changes leading to the expression of defense genes specific for the ...
Torkel Berglund, Anna B. Ohlsson
wiley   +1 more source

Geochemistry of reduced inorganic sulfur, reactive iron, and organic carbon in fluvial and marine surface sediment in the Laizhou Bay region, China [PDF]

, 2015
Understanding the geochemical cycling of sulfur in sediments is important because it can have implications for both modern environments (e.g., deterioration of water quality) and interpretation of the ancient past (e.g., sediment C/S ratios can be used ...
Bottrell, S, Mortimer, R, Sheng, Y, Shi, W, Sun, Q   +4 more
core   +1 more source

Single cis‐elements in brassinosteroid‐induced upregulated genes are insufficient to recruit both redox states of the BIL1/BZR1 DNA‐binding domain

FEBS Letters, EarlyView.
Phytohormone brassinosteroid‐induced gene regulation by the transcription factor BIL1/BZR1 involves redox‐dependent DNA‐binding alternation and interaction with the transcription factor PIF4. The reduced BIL1/BZR1 dimer binds preferred cis‐elements, while oxidation alters its oligomerization state and disrupts DNA‐binding ability.
Shohei Nosaki, Masae Ohtsuka, Takeshi Nakano, Masaru Tanokura, Takuya Miyakawa   +4 more
wiley   +1 more source

A review of reservoir carbon Cycling: Key Processes, influencing factors and research methods

Ecological Indicators
Based on the focus on the role of reservoirs as carbon sources and sinks, this article explores their impact on the global carbon cycle. Reservoirs, which are “artificial lakes” created by human activities in rivers, are reviewed in terms of the key ...
Chunhui Li, Yihan Wang, Yujun Yi, Xuan Wang, Celso Augusto Guimarães Santos, Qiang Liu   +5 more
doaj   +1 more source

Bioturbation experiments in the Venice Lagoon [PDF]

, 2003
Short experiments (14–21 days) were carried out during autumn 1998 and spring 1999 at one selected site of the Venice Lagoon to measure bioturbation activities and mixing rates, as well as to obtain quantitative information on benthos functionality ...
Bellucci, Luca Giorgio, Frignani, Mauro, Gérino, Magali, Mugnai, Cristian, Sauvage, Sabine   +4 more
core   +5 more sources

Researches on sedimentation [PDF]

Geological Society of America Bulletin, 1920
Purpose of this Symposium The purpose of this symposium is not to give an inventory of present information on sedimentation, nor is it to lay before you the definite solution of specific problems; but it is rather to discuss certain needs in the light of what we now know, and to consider ways and means of filling those needs.
openaire   +3 more sources

C9orf72 ALS‐causing mutations lead to mislocalization and aggregation of nucleoporin Nup107 into stress granules

FEBS Letters, EarlyView.
Mutations in the C9orf72 gene represent the most common genetic cause of amyotrophic lateral sclerosis (ALS), a fatal neurodegenerative disease. Using patient‐derived neurons and C. elegans models, we find that the nucleoporin Nup107 is dysregulated in C9orf72‐associated ALS. Conversely, reducing Nup107 levels mitigates disease‐related changes.
Saygın Bilican, Yara Nabawi, William Hongyu Zhang, Dunja Petrovic, Markus Wehrmann, Sara Muñoz‐García, Seda Koyuncu, David Vilchez   +7 more
wiley   +1 more source

Hydrological changes in the Upper Yellow River under the impact of upstream cascade reservoirs over the past 70 years

Journal of Hydrology: Regional Studies
Study region: The Upper Yellow River Basin (UYRB), China. Study focus: In this study, a variety of mathematical statistical methods, the Indicators of Hydrologic Alteration—Range of Variability (IHA-RVA) method, and the newly proposed Flow Surplus ...
Jing Hu, Xiong Zhou, Yujun Yi, Chunhui Li, Xuan Wang, Qiang Liu, Jiansu Mao   +6 more
doaj   +1 more source