Results 41 to 50 of about 174,511 (298)

Glacial/interglacial changes in mineral dust and sea-salt records in polar ice cores: sources, transport, and deposition [PDF]

, 2007
Sea salt and mineral dust records as represented by Na+ and Ca2+ concentrations, respectively, in Greenland and Antarctic ice cores show pronounced glacial/interglacial variations. For the Last Glacial Maximum (LGM) mineral dust (sea salt) concentrations
Fischer, Hubertus, Ruth, Urs, Röthlisberger, Regine, Siggaard-Andersen, Marie-Louise, Wolff, Eric   +4 more
core   +1 more source

Effect of chemical mixing state on the hygroscopicity and cloud nucleation properties of calcium mineral dust particles [PDF]

Atmospheric Chemistry and Physics, 2009
Atmospheric mineral dust particles can alter cloud properties and thus climate by acting as cloud condensation nuclei (CCN) that form cloud droplets. The CCN activation properties of various calcium mineral dust particles were studied experimentally to ...
R. C. Sullivan, M. J. K. Moore, M. D. Petters, S. M. Kreidenweis, G. C. Roberts, K. A. Prather   +5 more
doaj  

Estimation of the atmospheric flux of nutrients and trace metals to the Eastern Tropical North Atlantic Ocean [PDF]

, 2015
Atmospheric deposition contributes potentially significant amounts of the nutrients iron, nitrogen and phosphorus (via mineral dust and anthropogenic aerosols) to the oligotrophic tropical North Atlantic Ocean.
A. R. Baker, Adams, Baker, Baker, Baker, Baker, Baker, Ben-Ami, Bristow, Buck, C. F. Powell, C. Yodle, Chiapello, Chou, Croot, Crutzen, Duce, Duce, Duce, ECMWF, Fomba, Fomba, Ganzeveld, H. W. Bange, Helmers, Jickells, Johansen, Johnson, Kaufman, Kim, Krishnamurthy, Lesworth, Luo, Mahowald, Mahowald, Mills, Moore, Okin, Prospero, Prospero, Prospero, Prospero, Pye, R. J. Chance, Real, Savoie, Schlosser, Sedwick, Stuut, Sunda, T. D. Jickells, Ternon, Tian, Ussher, Xie, Zamora   +55 more
core   +1 more source

Incorporated constraints on mineral abundances and complex refractive indices for mineral dust components simulation

GIScience & Remote Sensing
The sources, transport, and optical properties of various mineral dust components vary significantly. However, most simulations treat dust as a homogeneous mixture, failing to differentiate between individual components.
Liang Li, Keqin Duan, Ting Yang, Yuhan Qi, Junhua Yang, Rong Chen, Peihong Shi   +6 more
doaj   +1 more source

Characterization of Modern and Fossil Mineral Dust Transported to High Altitude in the Western Alps: Saharan Sources and Transport Patterns

Advances in Meteorology, 2012
Mineral dust aerosols recently collected at the high-altitude Jungfraujoch research station (N, E; 3580 m a.s.l.) were compared to mineral dust deposited at the Colle Gnifetti glacier (N, E; 4455 m a.s.l.) over the last millennium.
Florian Thevenon, Massimo Chiaradia, Thierry Adatte, Christoph Hueglin, John Poté   +4 more
doaj   +1 more source

On the spectral depolarisation and lidar ratio of mineral dust provided in the AERONET version 3 inversion product [PDF]

, 2018
Knowledge of the particle lidar ratio (Sγ) and the particle linear depolarisation ratio (δγ) for different aerosol types allows for aerosol typing and aerosol-Type separation in lidar measurements.
Kezoudi, Maria, Kim, Kwanchul, Mueller, Detlef, Noh, Youngmin, Shin, Sung-Kyun, Tatarov, Boyan, Tesche, Matthias   +6 more
core   +3 more sources

Aerosol-type classification based on AERONET version 3 inversion products [PDF]

, 2019
© Author(s) 2019. This work is distributed under the Creative Commons Attribution 4.0 License.This study proposes an aerosol-type classification based on the particle linear depolarization ratio (PLDR) and single-scattering albedo (SSA) provided in the ...
Mueller, Detlef, Now, Youngmin, Shin, Sung-Kyun, Tesche, Matthias   +3 more
core   +2 more sources

Mechanisms of Mineral Dust-Induced Emphysema

Environmental Health Perspectives, 1997
Mineral dust exposure can result in emphysema and chronic airflow obstruction. We postulated that dust-induced emphysema has a pathogenesis similar to that in cigarette smoke-induced emphysema, namely, excess release of proteolytic enzymes from dust-evoked inflammatory cells, and inactivation of alpha-1-antitrypsin (A1AT) by dust-catalyzed formation of
A, Churg, K, Zay, K, Li
openaire   +2 more sources

TEM analysis of the internal structures and mineralogy of Asian dust particles and the implications for optical modeling [PDF]

Atmospheric Chemistry and Physics, 2014
Mineral dust interacts with incoming/outgoing electromagnetic radiation in the atmosphere. This interaction depends on the microphysical properties of the dust particles, including size, mineral composition, external morphology, and internal structure ...
G. Y. Jeong, T. Nousiainen
doaj   +1 more source

Calcium‐sensing receptor induces the apoptosis of chondrocytes in cooperation with phosphate transporter

FEBS Open Bio, EarlyView.
Excess Ca2+ ions activate the Calcium‐Sensing Receptor (CaSR), which subsequently drives the uptake of excess inorganic phosphate (Pi) via the Pi transporter (Pit−1) in chondrocytes. This mechanism causes a toxic increase in intracellular Pi concentration, ultimately leading to chondrocyte apoptosis and pathological mineralization. Excess extracellular
Sachie Nakatani, Hiroya Ueda, Ayumi Kawata, Yuki Sato, Kotomi Inomata, Hiroshi Mano, Masahiro Wada, Kenji Kobata   +7 more
wiley   +1 more source