Results 51 to 60 of about 287,123 (361)

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

open access: yesFEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Earth observation for monitoring and mapping of cyanobacteria blooms. Case studies on five Italian lakes

open access: yesJournal of Limnology, 2016
Cyanobacterial blooms occur in many parts of the world as a result of entirely natural causes or human activity. Due to their negative effects on water resources, efforts are made to monitor cyanobacteria dynamics.
Mariano Bresciani   +10 more
doaj   +1 more source

River Streamflow, Remotely Sensed Water Quality, and Benthic Composition of Previously Undescribed Nearshore Coral Reefs in Northern Puerto Rico

open access: yesFrontiers in Marine Science, 2021
Land-based sediment stress represents a threat to many coral reefs in Puerto Rico primarily as a result of unrestricted land cover/land use changes and poor best management practices.
Juan L. Torres-Pérez   +7 more
doaj   +1 more source

Investigating periphyton biofilm response to changing phosphorus concentrations in UK rivers using within-river flumes [PDF]

open access: yes, 2010
The excessive growth of benthic algal biofilms in UK rivers is a widespread problem, resulting in loss of plant communities and wider ecological damage.
Bowes, Michael J.   +3 more
core   +1 more source

YlmG1 is localized exclusively to the chloroplast envelope membrane and is involved in preprotein translocation in Arabidopsis thaliana

open access: yesFEBS Open Bio, EarlyView.
Cytosolically synthesized chloroplast preproteins are translocated across the outer and inner envelope membranes through translocons called TOC and TIC, respectively. In green algae and plants, the TIC core is composed of essential membrane proteins, Tic12, Tic20, and Tic214.
Mengyi Li, Xueyang Zhao, Masato Nakai
wiley   +1 more source

Impacts of Tropical Cyclone Seroja on the Phytoplankton Chlorophyll-a and Sea Surface Temperature in the Savu Sea, Indonesia

open access: yesIEEE Access, 2021
Tropical cyclone (TC) Seroja was a rare climatic event in the Indonesian Seas, particularly in the Savu Sea. This unprecedented event, which occurred on April 4, 2021, caused fatalities and severe damage to the region’s infrastructure and economy.
Riza Yuliratno Setiawan   +6 more
doaj   +1 more source

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

open access: yesAdvanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He   +5 more
wiley   +1 more source

Semi-analytical inversion modelling of Chlorophyll a variability in the U.S. Virgin Islands

open access: yesFrontiers in Remote Sensing, 2023
Coral reef health in the U.S. Virgin Islands (USVI) is in decline due to land-based sources of pollution associated with watershed development and global climate change.
K. Adem Ali   +4 more
doaj   +1 more source

Chlorophyll lasers: Stimulated light emission by chlorophylls and Mg-free chlorophyll derivatives [PDF]

open access: yesProceedings of the National Academy of Sciences, 1977
Stimulated emission and lasing have been demonstrated for chlorophyll a , chlorophyll b , and bacteriochlorophyll a as well as for the Mg-free chlorophyll derivatives pheophytin a and methyl pheophorbide a .
J C, Hindman   +3 more
openaire   +2 more sources

Impact of single and repeated applications of the insecticide chlorpyrifos on tropical freshwater plankton communities [PDF]

open access: yes, 2008
This paper describes the effects of a single and a repeated application of the organophosphorus insecticide chlorpyrifos on zooplankton and phytoplankton communities in outdoor microcosms in Thailand.
Brink, P.J., van den   +2 more
core   +3 more sources

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