Results 1 to 10 of about 242,934 (307)

Calcium carbonate corrosivity in an Alaskan inland sea [PDF]

Biogeosciences, 2014
Ocean acidification is the hydrogen ion increase caused by the oceanic uptake of anthropogenic CO2, and is a focal point in marine biogeochemistry, in part, because this chemical reaction reduces calcium carbonate (CaCO3) saturation states (Ω) to levels ...
W. Evans, J. T. Mathis, J. N. Cross
doaj   +1 more source

Assessing net community production in a glaciated Alaskan fjord [PDF]

Biogeosciences, 2015
The impact of deglaciation in Glacier Bay has been observed to seasonally influence the biogeochemistry of this marine system. The influence from surrounding glaciers, particularly tidewater glaciers, has the potential to affect the efficiency and ...
S. C. Reisdorph, J. T. Mathis
doaj   +1 more source

Study on the Flow Mechanism of Shale Oil with Different Injection Media

Advances in Civil Engineering, 2021
Chinese shale oil has high recoverable resources and great development potential. However, due to the limitation of development technology, the recovery rate of shale oil is not high.
Lanlan Yao, Zhengming Yang, Haibo Li, Bo Cai, Chunming He, Debin Xia   +5 more
doaj   +1 more source

Faulty autolysosome acidification in Alzheimer’s disease mouse models induces autophagic build-up of Aβ in neurons, yielding senile plaques

Nature Neuroscience, 2022
Autophagy is markedly impaired in Alzheimer’s disease (AD). Here we reveal unique autophagy dysregulation within neurons in five AD mouse models in vivo and identify its basis using a neuron-specific transgenic mRFP-eGFP-LC3 probe of autophagy and pH ...
Ju-Hyun Lee, Dun-Sheng Yang, C. Goulbourne, Eunju Im, Philip H. Stavrides, Anna Pensalfini, Han Chan, C. Bouchet‐Marquis, C. Bleiwas, M. Berg, Chunfeng Huo, James Peddy, M. Pawlik, E. Levy, Ma-La V. Rao, Mathias Staufenbiel, R. Nixon   +16 more
semanticscholar   +1 more source

Soil acidification and the liming potential of biochar.

Environmental Pollution, 2022
Soil acidification in managed ecosystems such as agricultural lands principally result from increased releasing of protons (H+) from the transformation reactions of carbon (C), nitrogen (N) and sulphur (S) containing compounds.
N. Bolan, A. Sarmah, Sanandam Bordoloi, Shankar Bolan, L. Padhye, L. van Zwieten, Prasanthi Sooriyakumar, B. Khan, Mahtab Ahmad, Z. Solaiman, Jeorg Rinklebe, Hailong Wang, B. Singh, K. Siddique   +13 more
semanticscholar   +1 more source

Acidification suppresses the natural capacity of soil microbiome to fight pathogenic Fusarium infections

Nature Communications, 2023
Soil-borne pathogens pose a major threat to food production worldwide, particularly under global change and with growing populations. Yet, we still know very little about how the soil microbiome regulates the abundance of soil pathogens and their impact ...
Xiao-Gang Li, Dele Chen, V. Carrión, Daniel Revillini, Shan Yin, Yuan-Hua Dong, Tao-lin Zhang, Xing-Xiang Wang, M. Delgado-Baquerizo   +8 more
semanticscholar   +1 more source

Lysosomal acidification dysfunction in microglia: an emerging pathogenic mechanism of neuroinflammation and neurodegeneration

Journal of Neuroinflammation, 2023
Microglia are the resident innate immune cells in the brain with a major role in orchestrating immune responses. They also provide a frontline of host defense in the central nervous system (CNS) through their active phagocytic capability.
Joseph D. Quick, Cristian Silva, J. Wong, Kah-Leong Lim, R. Reynolds, A. Barron, Jia-Liu Zeng, Chih-Hung Lo   +7 more
semanticscholar   +1 more source

Synthesis of Amorphous Silica from Rice Husk Ash: Comparing HCl and CH3COOH Acidification Methods and Various Alkaline Concentrations

International Journal of Technology, 2020
High purity silica has been successfully synthesized from rice husk ash (RHA) by alkaline extraction using the reflux process followed by acidification.
Donanta Dhaneswara, Jaka Fajar Fatriansyah, Frans Wensten Situmorang, Alfina Nurul Haqoh   +3 more
doaj   +1 more source

Restoration of lysosomal acidification rescues autophagy and metabolic dysfunction in non-alcoholic fatty liver disease

Nature Communications, 2023
In NAFLD, high levels of fatty acids in the liver impair lysosomal acidification. Here, the authors report the synthesis of novel biodegradable acid-activated acidifying nanoparticles that re-acidify lysosomes, restore autophagy, and reverse fasting ...
Jia-Liu Zeng, R. Acín-Pérez, Essam A. Assali, Andrew Martin, A. Brownstein, A. Petcherski, Lucía Fernández-Del-Río, Ruiqing Xiao, Chih-Hung Lo, Michael Shum, M. Liesa, Xue Han, O. Shirihai, M. Grinstaff   +13 more
semanticscholar   +1 more source

Assessment of sustainable land use: linking land management practices to sustainable land use indicators

International Journal of Agricultural Sustainability, 2022
Land degradation threatens food production especially in smallholder farming systems predominant in sub-Saharan Africa. Monitoring the effects of agricultural land uses is critical to guide sustainable intensification (SI).
Generose Nziguheba, Julius Adewopo, Cargele Masso, Nsharwasi Leon Nabahungu, Johan Six, Haroon Sseguya, Godfrey Taulya, Bernard Vanlauwe   +7 more
doaj   +1 more source