Results 81 to 90 of about 9,550 (296)

Multiple excitation fluorometer for in situ oceanographic applications

A new in situ fluorometer for the detection of oceanic photosynthetic pigment fluorescence is described. Emission spectra from 546 to 733 nm are recorded for each of three different visible excitation bands ten times a second.
Lantz, Carl, Desiderio, Russell A., Cowles, Timothy J., Moore, Casey   +3 more
core   +3 more sources

Coral photobiology studied with a new imaging pulse amplitude modulated fluorometer

, 2005
A new high-resolution imaging fluorometer (Imaging-PAM) was used to identify heterogeneity of photosynthetic activity across the surface of corals. Three species were examined: Acropora nobilis Dana (branching), Goniastrea australiensis Edwards A Haime
Ulrich Schreiber, Larkum, A, Michael Kühl, Schreiber, Ulrich, Kühl, M, Ralph, PJ, Anthony W. D. Larkum, Schreiber, U, Gademann, R, Ralph, Peter J., Kuehl, M, Larkum, AWD, Gademann, Rolf, Kühl, M., Peter J. Ralph, Rolf Gademann, Larkum, Anthony W. D.   +16 more
core   +1 more source

Spatial Transcriptomics Reveals a T Cell‐Mediated Microglial Activation Axis of Immune Checkpoint Inhibition‐Related Adverse Events in the Brain

Advanced Science, EarlyView.
Immune checkpoint inhibition (ICI) reshapes the hippocampal neuroimmune niche. Spatial transcriptomic profiling and human brain histological analyses identify neuroinflammation and altered neuronal and glial programs. Notably, T cell depletion prevents ICI‐driven microglial activation, establishing the T cell–microglia crosstalk axis as a driving ...
Devyani Swami, Sanad M. El‐Khatib, Suhas Sureshchandra, Elise Nguyen, Janaki Manoja Vinnakota, Robert Zeiser, Shivashankar Othy, Munjal M. Acharya   +7 more
wiley   +1 more source

Author Correction: Floats with bio-optical sensors reveal what processes trigger the North Atlantic bloom

Nature Communications, 2018
In the original version of this Article, the data accession https://doi.org/10.17882/42182 was omitted from the Data Availability statement. In the first paragraph of the Methods subsection entitled ‘Float data processing’, the WET Labs ECO-triplet ...
A. Mignot, R. Ferrari, H. Claustre
doaj   +1 more source

Low thermal mass fluorometer

, 2007
The present invention provides core technologies necessary for a portable, low cost, thermal-regulating LED-based handheld fluorometer. The regulated fluorometer is based on a low thermal mass infrared heater, and an orthogonal ...
Fries, David P., Farmer, Andrew, Flanery, Bill   +2 more
core  

Solvent‐Free Synthesis of Ultrabright Carbon Dots With Near‐Unity Quantum Yield for High‐Performance Light‐Emitting Diodes

Advanced Science, EarlyView.
A rational, solvent‐free synthesis utilizing 2,6‐diaminonaphthalene produces ultrabright green‐emissive carbon dots. Regulated by a self‐limiting oxidative capping mechanism, excitons undergo ultrafast intra‐particle funneling from the nitrogen‐doped carbon core to emissive surface traps.
Hyeonjin Park, Su Hwan Lee, Sejeong Seo, Soye Park, Soo min Ji, Hyunda Jo, Sehyeon Park, Young‐Hoon Kim, Woosung Kwon   +8 more
wiley   +1 more source

A Multifrequency Phase Fluorometer Using the Harmonic Content of a Mode-Locked Laser [PDF]

, 1985
A description is given of the construction and operation of a cross-correlation phase and modulation fluorometer which uses the harmonic content of a high repetition rate mode-locked laser as the excitation source.
Jameson, David M, Gratton, Enrico, Alcala, J Ricardo   +2 more
core   +1 more source

Compound Abrus cantoniensis Extract Alleviates AFB1‐Induced Liver Injury by Regulating PI3K‐AKT Pathway and Gut Microbiota/Butyrate Metabolism

Advanced Science, EarlyView.
ACCE has a good alleviating effect on AFB1‐induced liver injury, and this alleviating effect is related to the PI3K‐AKT pathway regulated by ACCE and the butyrate metabolism of gut microbiota. ABSTRACT Aflatoxin B1 (AFB1) is a potent hepatotoxin commonly ingested through contaminated food. Abrus cantoniensis Hance, a traditional Chinese medicinal herb,
Hongjie Hu, Ming cheng, Shiqi Zheng, Huixin Liu, Xiaofang Wei, Wenwen Yang, Hongchun Yang, Liuyang Yuan, Li Jiang, Jie Chen, Linglong Zhao, Yanchao Guo, Hongbin Si   +12 more
wiley   +1 more source

Allelopathic Interference of the Cyanobacterium Raphidiopsis raciborskii Exudates on Photosynthetic Traits of Photosynthesizing Microorganisms

Limnological Review
Raphidiopsis raciborskii (formerly Cylindrospermopsis raciborskii) is a bloom-forming cyanobacterium that employs the production of toxins and other secondary metabolites as a competitive and allelopathic strategy.
Camila Nader, Maria Cecília Miotto, Carlos Yure B. Oliveira, Leonardo R. Rörig   +3 more
doaj   +1 more source

Thermal Shifts Dominate Single‐Gene Responses to Transcription‐Targeting Antibiotics

Advanced Science, EarlyView.
Thermal shifts reshape bacterial responses to transcription‐targeting antibiotics. In E. coli, temperature can dominate antibiotic‐induced genome‐wide expression, particularly outside 30°C–39°C, through changes in adenosine triphosphate (ATP), nucleoid organization, and drug‐target engagement.
Rahul Jagadeesan, Amir M. Arsh, Vatsala Chauhan, Suchintak Dash, Pooja Ravaria, Andre S. Ribeiro   +5 more
wiley   +1 more source