Results 101 to 110 of about 627,250 (388)

Marine Aerosols and Clouds.

Annual Review of Marine Science, 2018
The role of marine bioaerosols in cloud formation and climate is currently so uncertain that even the sign of the climate forcing is unclear. Marine aerosols form through direct emissions and through the conversion of gas-phase emissions to aerosols in ...
S. Brooks, D. Thornton
semanticscholar   +1 more source

Dual‐Functional Polyphosphoesters for Gene Delivery: Synergistic Effects of Guanidinium and Hydrophobic Side Chains in Degradable Polymers

Advanced Healthcare Materials, EarlyView.
This study presents guanidinium‐ and indole‐functionalized polyphosphoesters as degradable, non‐viral gene delivery vectors. Through precise tuning of charge density and hydrophobicity, these polymers form stable polyplexes with low toxicity. Remarkably, minor structural changes yield up to 200‐fold differences in transfection efficiency, highlighting ...
Markus Kötzsche, Andreas Dzierza, Jan Egger, Timo Rheinberger, Christin Weilandt, Frederik R. Wurm, Ivo Nischang, Dagmar Fischer, Kalina Peneva   +8 more
wiley   +1 more source

Marine stratocumulus cloud characteristics from multichannel satellite measurements [PDF]

, 1990
Understanding the effects of aerosols on the microphysical characteristics of marine stratocumulus clouds, and the resulting influence on cloud radiative properties, is a primary goal of FIRE.
Durkee, Philip A., Mineart, Gary M.
core   +1 more source

Climate model simulation of winter warming and summer cooling following the 1991 Mount Pinatubo volcanic eruption

, 1999
We simulate climate change for the 2-year period following the eruption of Mount Pinatubo in the Philippines on June 15, 1991, with the ECHAM4 general circulation model (GCM).
Antuna, J., Graf, H., Kirchner, I., Robock, A., Stenchikov, G.   +4 more
core   +1 more source

Global climate impacts of country-level primary carbonaceous aerosol from solid-fuel cookstove emissions

Environmental Research Letters, 2015
Cookstove use is globally one of the largest unregulated anthropogenic sources of primary carbonaceous aerosol. While reducing cookstove emissions through national-scale mitigation efforts has clear benefits for improving indoor and ambient air quality ...
Forrest Lacey, Daven Henze
doaj   +1 more source

Enriching particles on a bubble through drainage: Measuring and modeling the concentration of microbial particles in a bubble film at rupture

Elementa: Science of the Anthropocene, 2017
The concentration of microbes and other particulates is frequently enriched in the droplets produced by bursting bubbles. As a bubble rises to the ocean surface, particulates in the bulk liquid can be transported to the sea surface microlayer by ...
Peter L. L. Walls, James C. Bird
doaj   +1 more source

Scattering and absorbing aerosols in the climate system

Nature Reviews Earth & Environment, 2022
Jing Li, B. Carlson, Y. Yung, Daren Lv, James Hansen, J. Penner, H. Liao, V. Ramaswamy, R. Kahn, Peng Zhang, O. Dubovik, A. Ding, A. Lacis, Lu Zhang, Yueming Dong   +14 more
semanticscholar   +1 more source

Contrasting effects on deep convective clouds by different types of aerosols

Nature Communications, 2018
Convective clouds produce a significant proportion of the global precipitation and play an important role in the energy and water cycles. We quantify changes of the convective cloud ice mass-weighted altitude centroid (ZIWC) as a function of aerosol ...
J. Jiang, H. Su, Lei Huang, Y. Wang, S. Massie, Bin Zhao, A. Omar, Zhien Wang   +7 more
semanticscholar   +1 more source

Artificial Symbiosis for Bulk Production of Bacterial Cellulose Composites

Advanced Materials, EarlyView.
Co‐cultivation of the cellulose‐producing bacterium with the microalga enables bulk formation of bacterial cellulose under static incubation, with photosynthetically active oxygen‐generating sites throughout the medium. This symbiotic platform supports 3D cellulosic constructs with geometries dictated by the vessel shape.
Kui Yu, Sing Teng Chua, Ran Zhao, Alyssa Smith, Michael Kühl, Alison G. Smith, Tom Ellis, Silvia Vignolini   +7 more
wiley   +1 more source

Clustering, Chaos and Crisis in a Bailout Embedding Map

, 2007
We study the dynamics of inertial particles in two dimensional incompressible flows. The particle dynamics is modelled by four dimensional dissipative bailout embedding maps of the base flow which is represented by 2-d area preserving maps.
B. V. Chirikov, N. Nirmal Thyagu, Neelima Gupte   +2 more
core   +1 more source