Results 121 to 130 of about 70,069 (298)

Characterizing Dissolved Organic Matter and Other Water-Soluble Compounds in Ground Ice of the Russian Arctic: A Focus on Ground Ice Classification within the Carbon Cycle Context

Geosciences
Climate-induced changes contribute to the thawing of ice-rich permafrost in the Arctic, which leads to the release of large amounts of organic carbon into the atmosphere in the form of greenhouse gases, mainly carbon dioxide and methane.
Petr Semenov, Anfisa Pismeniuk, Anna Kil, Elizaveta Shatrova, Natalia Belova, Petr Gromov, Sergei Malyshev, Wei He, Anastasiia Lodochnikova, Ilya Tarasevich, Irina Streletskaya, Marina Leibman   +11 more
doaj   +1 more source

Persistence of viable but non-culturable bacteria during the production and distribution of drinking water [PDF]

, 1997
The direct measurement of in situ respiring bacteria using 5-cyano-2,3-ditolyl tetrazolium chloride (CTC) shows that, especially for Gram-negative bacteria, large numbers of viable but non-culturable (VBNC) bacteria are present in finished water from a ...
Cervantes, P., de Roubin, M.R., Joret, J.C., Mennecart, V., Robert, C.   +4 more
core  

Coupling bioturbation activity to metal (Fe and Mn) profiles in situ [PDF]

, 2013
This work was supported by a University of Aberdeen 6th century scholarship (awarded to L. T.), CEFAS Lowestoft (DP204), NERC NFSD support (08/02) and a SAMS research bursary (awarded to L.
Parker, E. R., Solan, M., Teal, L. R.
core   +4 more sources

One‐Step Microfluidic Manufactured Fucose‐Decorated Sweetosomes Choose the Time and the Road for Their Intracellular Journey to Cancer Treatment

Advanced Healthcare Materials, EarlyView.
Sweetosomes, a new class of fucose‐decorated liposomes, are developed via a one‐step microfluidic process without surface chemistry. This study elucidates their main caveolae‐mediated entry and distinct endosomal trafficking. These nanostructures demonstrate superior endosomal escape, organelle acidity modulation, and prolonged plasma persistence ...
Mattia Tiboni, Mariele Montanari, Shiva Khorshid, Michele Verboni, Andrea Duranti, Simone Lucarini, Daniele Lopez, Annalisa Aluigi, Gianluca Morganti, Michele Menotta, Giovanna Panza, Daniel J. Klionsky, Barbara Canonico, Luca Casettari   +13 more
wiley   +1 more source

Estimating phytoplankton group abundances in an agricultural pond from in situ sensed data with machine learning: use of the SHAP analysis for ecological assessments

Frontiers in Environmental Science
Phytoplankton are a crucial component of aquatic ecosystems and are closely tied to water quality. Direct counts of phytoplankton abundances are resource-demanding, but the indirect estimation of those abundances has proven to be beneficial when ...
Jaclyn E. Smith, Jaclyn E. Smith, Jaclyn E. Smith, Seok Min Hong, Jennifer L. Wolny, Matthew D. Stocker, Robert L. Hill, Yakov Pachepsky   +7 more
doaj   +1 more source

Emerging patterns in the global distribution of dissolved organic matter fluorescence

Analytical Methods, 2019
The spectra responsible for natural dissolved organic matter fluorescence in 90 peer-reviewed studies have been compared using new similarity metrics.
Urban J. Wünsch, Rasmus Bro, Colin A. Stedmon, Philip Wenig, Kathleen R. Murphy   +4 more
openaire   +4 more sources

A Physiological Microfluidic Blood–Brain‐Barrier Model for In Vitro Study of Nanoparticle Trafficking and Accumulation

Advanced Healthcare Materials, EarlyView.
A human microfluidic blood‐brain barrier (mBBB) model enables spatially resolved comparison of nanoparticle trafficking. Extracellular vesicles (EVs), liposomes, and nanoplastics exhibit distinct transport and disruption behaviors, revealing that membrane composition and uptake pathways govern BBB interaction.
Bryan B. Nguyen, Neona M. Lowe, Sophia Kellogg, Kuan‐Wei Huang, Hannah O'Toole, Elizabeth J. Hale, Venktesh S. Shirure, Bhupinder S. Shergill, Steven C. George, Randy P. Carney   +9 more
wiley   +1 more source

Fluorescent dissolved organic matter in the dark ocean

, 2012
A dissolved organic matter (DOM) fraction absorbs ultraviolet and visible radiation that partially also emits fluorescence when irradiated with ultraviolet light. To identify the most relevant fluorophores present in deep waters, 429 excitation-emission matrixes (EEMs) from the bathypelagic layer of the Atlantic, Indian and Pacific oceans were recorded
Catalá, T.S. (Teresa S.), Reche, I. (Isabel), Fuentes-Lema, A., Romera-Castillo, C. (Cristina), Nieto-Cid, M. (Mar), Ortega-Retuerta, E. (Eva), Álvarez, M. (Marta), Marrasé, C. (Cèlia), Stedmon, C.A., Álvarez-Salgado, X.A.   +9 more
openaire   +2 more sources

3D Soft Hydrogels Induce Human Mesenchymal Stem Cells “Deep” Quiescence

Advanced Healthcare Materials, EarlyView.
Three‐dimensional soft hydrogels mimicking the bone marrow niche induce deep quiescence in human mesenchymal stem cells. Unlike 2D culture, 3D matrices halt proliferation, regulate cell‐cycle and quiescence markers, and downregulate mTORC1 signaling, preserving stem cell phenotype and therapeutic potential ex vivo.
David Boaventura Gomes, Timo Rademakers, Ana Filipa Henriques Lourenço, Andrea Calore, Clarissa Tomasina, Denis van Beurden, Jinjie Venema, Bryan Chömpff, Hong Liu, Nicole Bouvy, Sandra Camarero‐Espinosa, Lorenzo Moroni   +11 more
wiley   +1 more source

Bank Filtration as a Robust Pretreatment of Gravity-Driven Membrane Filtration: Performance Enhancement and Mechanistic Insights

Engineering
A gravity-driven membrane (GDM) system is a cleaning-free ultrafiltration (UF) process for decentralized water purification. However, GDM has a poor permeate quality and low stable flux when the feed water contains high levels of particulates, organic ...
Na Li, Chu Zhou, Fang Xu, Danting Shi, Fanxi Zeng, Liang Luo, Zheng Fang, Senlin Shao   +7 more
doaj   +1 more source