Results 191 to 200 of about 23,523 (302)

A novel approach to estimate non‐algal particle absorption for improved retrieval of pigment concentrations in coastal waters

Limnology and Oceanography: Methods, EarlyView.
Abstract Phytoplankton play a central role in ocean biogeochemistry and understanding their composition and variability is critical for monitoring marine ecosystem dynamics. Continuous spectrophotometric measurements (using a Seabird Sci. AC‐S) along ship tracks enable high‐resolution measurements of particle spectral absorption (apλ$$ {a}_p\left ...
Margherita Costanzo, Vittorio E. Brando, Emmanuel Boss, Alison Chase, David Doxaran   +4 more
wiley   +1 more source

Photosynthetic pigments in developing seeds of Acer platanoides and Acer pseudoplatanus. [PDF]

Sci Rep
Mokhtari AM, Wojciechowska N, Kowalski A, Kalemba EM.   +3 more
europepmc   +1 more source

Sodium sulfite can reliably induce chemical hypoxia without toxic effects in the model sea anemone species, Exaiptasia diaphana

Limnology and Oceanography: Methods, EarlyView.
Abstract Climate change is accelerating the deoxygenation of aquatic ecosystems, so understanding its effects on biological processes is increasingly critical. An emerging method for inducing hypoxia during experimentation utilizes sodium sulfite (SSI) to scavenge oxygen; however, it remains unclear if hypoxia‐inducing concentrations of SSI are toxic ...
Zhen Qin, Lorenzo Vassura, Bianca A. Parodi, Elise M. J. Laetz   +3 more
wiley   +1 more source

Unexplored Bioactive, Antioxidant, Antimicrobial, and Nematicidal Potential of the Flowers, Leaves, and Roots of 'Yellow Chicory' (<i>Hypochaeris sessiliflora</i>). [PDF]

Pharmaceuticals (Basel)
Coyago-Cruz E, Méndez G, Zúñiga-Miranda J, Porras A, Barba-Ostria C, Sarabia I, Guamán LP, Coello C, Heredia-Moya J, Naranjo B, Segovia-Salcedo MC.   +10 more
europepmc   +1 more source

Flow cytometric phytoplankton concentration and optical properties across instruments and laboratories

Limnology and Oceanography: Methods, EarlyView.
Abstract Flow cytometry measures the optical properties of individual cells and has become essential for enumerating and characterizing marine phytoplankton. Yet systematic comparison of measurements across instruments remains limited, hampering data comparison across laboratories and long‐term time series.
Francois Ribalet, Anne W. Thompson, E. Virginia Armbrust, Raffaella Casotti, Josep M. Gasol, Emily Peacock, Massimo C. Pernice, Nicole J. Poulton, Heidi M. Sosik, Angelicque E. White, Zackary Johnson   +10 more
wiley   +1 more source

Organ-Specific Distribution of Bioactive Compounds in <i>Valeriana microphylla</i> and Their Antioxidant, Antimicrobial, Haemolytic, and Nematicidal Activities. [PDF]

Antioxidants (Basel)
Coyago-Cruz E, Méndez G, Zúñiga-Miranda J, Porras A, Barba-Ostria C, Zambrano J, Recillo S, Guamán LP, Heredia-Moya J, Naranjo B, Segovia-Salcedo MC.   +10 more
europepmc   +1 more source

Intercomparison of carbon‐13 and carbon‐14 tracer approaches for estimating marine calcification and net primary production

Limnology and Oceanography: Methods, EarlyView.
Abstract Accurate measurements of phytoplankton net primary production (NPP) and calcification are essential for quantifying marine carbon cycling, yet in situ calcification rates remain poorly constrained. We compared 13C‐ and 14C‐based tracer methods for NPP in laboratory cultures of the diatom Chaetoceros tenuissimus and the coccolithophore ...
Chloe L. Smith, Austin Grubb, Kay D. Bidle, Kimberlee Thamatrakoln, Adam V. Subhas   +4 more
wiley   +1 more source

Macroalgal-Derived Bioactive Compounds as Anti-Inflammatory and Antioxidant Ingredients for Food and Nutraceutical Industry: Mechanisms, Functional Applications, and Challenges. [PDF]

Mar Drugs
Pedisić S, Dukić J, Cegledi E, Dobrinčić A, Zorić Z, Pelaić Z, Garofulić IE, Repajić M, Dragović-Uzelac V.   +8 more
europepmc   +1 more source

Attosecond‐Stable Two‐Dimensional Spectroscopy by a Sagnac‐Based Modulating System and a Sub‐4‐fs Continuum Source

Laser &Photonics Reviews, EarlyView.
A novel optical platform integrates a Sagnac‐based interferometer with a high‐brightness multiple‐plate continuum source to advance two‐dimensional electronic spectroscopy. The robust system delivers octave‐spanning, 3.7‐femtosecond pulses and achieves intrinsic attosecond‐level phase stability without active feedback.
Wei‐Chung Feng, Bo‐Han Chen, Chih‐Hsuan Lu, Howe‐Siang Tan, Shang‐Da Yang, Kai Chen   +5 more
wiley   +1 more source

Microalgae as a Source of Photosensitizers: Analytical Strategies and Biomedical Use in Photodynamic Therapy. [PDF]

Pharmaceuticals (Basel)
Kuanyshbay A, Iskakova Z, Aibuldinov Y, Kolpek A, Tashenov Y, Tursynova N, Tekebayeva Z, Rakhymzhan Z, Temirbekova A, Kulzhanova K, Zhantokov B, Bazarkhankyzy A.   +11 more
europepmc   +1 more source