Results 51 to 60 of about 2,615,185 (246)

Channel branching and zigzagging in negative cloud-to-ground lightning

Scientific Reports, 2017
A fundamental question in lightning flash concerns why the discharge channel propagates in a zig-zag manner and produces extensive branches. Here we report the optical observation of two negative cloud-to-ground lightning discharges with very high ...
Rubin Jiang, Xiushu Qie, Hongbo Zhang, Mingyuan Liu, Zhuling Sun, Gaopeng Lu, Zhichao Wang, Yu Wang   +7 more
doaj   +1 more source

Cloud Properties under Different Synoptic Circulations: Comparison of Radiosonde and Ground-Based Active Remote Sensing Measurements

Atmosphere, 2016
In this study, long-term (10 years) radiosonde-based cloud data are compared with the ground-based active remote sensing product under six prevailing large-scale synoptic patterns, i.e., cyclonic center (CC), weak pressure pattern (WP), the southeast ...
Jinqiang Zhang, Jun Li, Xiangao Xia, Hongbin Chen, Chao Ling   +4 more
doaj   +1 more source

Continuous measurements of atmospheric oxygen and carbon dioxide on a North Sea gas platform [PDF]

, 2010
A new atmospheric measurement station has been established on the North Sea oil and gas production platform F3, 200 km north off the Dutch coast (54°51' N, 4°44' E).
S. van der Laan, Meijer, H. A. J., R. E. M. Neubert, Laan-Luijkx, I.T., van der, Laan, S., van der, Laan-Luijkx, I.T. van der, Laan, S. van der, van der Laan, S., I. T. van der Laan-Luijkx, H. A. J. Meijer, Meijer, H.A.J., van der Laan-Luijkx, I. T., Meijer, H.A.J.; id_orcid, Neubert, R.E.M., Neubert, R. E. M.   +14 more
core   +2 more sources

p190A/ARHGAP35 and p190B/ARHGAP5 proteins in endometrial cancer: a novel cancer‐relevant paralog interplay

Molecular Oncology, EarlyView.
This study identifies ARHGAP5, in addition to the frequently mutated ARHGAP35, as significantly mutated in endometrial cancer. Mutations in both genes co‐occur and are associated with their correlated downregulation. Functional CRISPR studies show that both paralogs regulate similar pathways, including actin cytoskeleton organization.
Mathilde Pinault, Capucine Heraud, Mélissa Correia de Oliveira, Véronique Neaud, Valérie Valesco, Valérie Prouzet‐Mauleon, Béatrice Turcq, Jean‐William Dupuy, Anne‐Aurélie Raymond, Sabrina Croce, Frédéric Saltel, Valérie Lagrée, Violaine Moreau   +12 more
wiley   +1 more source

Observation of sulphate aerosols and SO2 from volcanic eruptions using data from the Atmospheric Chemistry Experiment (ACE) [PDF]

, 2011
Infrared spectra measured by the Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS) on board of the SCISAT satellite were used to analyse the temporal and spatial evolution of volcanic aerosols from the Kasatochi (August 2008 ...
Doeringer, Debora
core   +3 more sources

Characterization of West African Jet Streams and Their Association to ENSO Events and Rainfall in ERA-Interim 1979–2011

Advances in Meteorology, 2014
The interannual variability of West African jet streams and their association with rainfall are reexamined using European Reanalysis ERA-Interim 1979–2011.
Churchill Okonkwo, Belay Demoz, Sium Tesfai   +2 more
doaj   +1 more source

Four-dimensional variational data assimilation for inverse modeling of atmospheric methane emissions: Analysis of SCIAMACHY observations [PDF]

, 2008
Recent observations from the Scanning Imaging Absorption Spectrometer for Atmospheric Chartography (SCIAMACHY) instrument aboard ENVISAT have brought new insights in the global distribution of atmospheric methane.
Bergamaschi, P., Krol, M.C., Meirink, J., Luciana V. Gatti, KROL Maarten, Dlugokencky, Edward J., Maarten C. Krol, FRANKENBERG. C., DLUGOKENCKY Edward, Sander Houweling, M. Gabriella Villani, GATTI Luciana, Gatti, Luciana V., Bergamaschi, Peter, D"AMELIO Monica, ROECKMANN Thomas, Peter Bergamaschi, HOUWELING Sander, VILLANI Maria Gabriella, Frankenberg, Christian, John B. Miller, MILLER John, Villani, M. Gabriella, Christian Frankenberg, Jan Fokke Meirink, Edward J. Dlugokencky, BERGAMASCHI Peter, Monica T. S. d'Amelio, Miller, John B., Houweling, Sander; id_orcid, MEIRINK Jan Fokke, d'Amelio, Monica T. S., Krol, Maarten C., Meirink, Jan Fokke, Roeckmann, Thomas, Thomas Röckmann   +35 more
core   +1 more source

Aquaporin‐3 and aquaporin‐5 impact the development of pancreatic ductal adenocarcinoma spheroids

FEBS Open Bio, EarlyView.
Schematic representation of the role of aquaporin‐3 (AQP3) and aquaporin‐5 (AQP5) in pancreatic ductal adenocarcinoma (PDAC). Both proteins are upregulated in PDAC and are associated with tumor progression and metastatic potential. Silencing AQP3 or AQP5 in PDAC spheroids results in decreased diameter, area, and overall growth, underscoring their key ...
Catarina Pimpão, Diogo M. Engrácia, Graça Soveral, Filipa Mendes   +3 more
wiley   +1 more source

Identification of Snowfall Riming and Aggregation Processes Using Ground-Based Triple-Frequency Radar

Remote Sensing
Riming and aggregation are critical ice-phase microphysical processes in winter clouds, but their overlapping signatures and dynamic transitions pose challenges for conventional single-frequency radar detection.
Danyang Wang, Wenying He, Yongheng Bi, Xiangao Xia, Hongbin Chen   +4 more
doaj   +1 more source

Characteristics of Lake Chad Level Variability and Links to ENSO, Precipitation, and River Discharge

The Scientific World Journal, 2014
This study used trend, correlation, and wavelet analysis to characterize Lake Chad (LC) level fluctuations, river discharge, El Niño Southern Oscillation (ENSO), and precipitation regimes and their interrelationships.
Churchill Okonkwo, Belay Demoz, Sium Gebremariam   +2 more
doaj   +1 more source