Results 61 to 70 of about 9,700 (199)

Use of Fluorescence Spectroscopy and Chemometrics to Visualise Fluoroquinolones Photodegradation Major Trends: A Confirmation Study with Mass Spectrometry

Molecules, 2023
In this work, we employed EEM-PARAFAC (fluorescence excitation-emission matrices-parallel factor analysis) as a low-cost tool to study the oxidation pathways of (fluoro)quinolones. Amounts of 12.5 μM of enrofloxacin (ENR), ciprofloxacin (CIP), ofloxacin (
Iván Sciscenko, Paula García-Negueroles, Ana María Amat, Isabel Oller, Carlos Escudero-Oñate, Laura Ferrando-Climent, Antonio Arques   +6 more
doaj   +1 more source

MACH: Fast Randomized Tensor Decompositions

, 2009
Tensors naturally model many real world processes which generate multi-aspect data. Such processes appear in many different research disciplines, e.g, chemometrics, computer vision, psychometrics and neuroimaging analysis.
Tsourakakis, Charalampos E.
core   +2 more sources

Composition characteristics and metal binding capacity of dissolved organic matter in the agriculture‐dominated Tuhai River

River, Volume 5, Issue 1, Page 82-95, February 2026.
Abstract An essential part of river ecosystems, dissolved organic matter (DOM) has an enormous effect on the transport and variability of heavy metals. Nonetheless, our understanding of how the DOM affects heavy metal behavior in agricultural rivers remains limited.
Dongling Sang, Xin Yao, Weiwei Lü, Zhaoli Sun, Shanshan Wang, Jinye Wang, Na Jiang, YingHao Zhang, Huanguang Deng   +8 more
wiley   +1 more source

Dissolved Organic Matter Composition in the Laurentian Great Lakes Ice and Its Contribution to Spring Melt

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 2, February 2026.
Abstract Dissolved organic matter (DOM) plays a vital role in lakes, but its behavior in winter is poorly understood. This study examined the differences in DOM between lake ice and the upper water column across 18 sites in the Laurentian Great Lakes, integrating in situ sampling and remotely sensed ice data to create a mass budget model to estimate ...
Anthony J. Arsenault, Nolan J. T. Pearce, Ted Ozersky, Sarah C. D’Amario, Kirill Shchapov, Hunter J. Carrick, Justin D. Chaffin, Maureen L. Coleman, Warren J. S. Currie, Jonathan P. Doubek, Rachel Eveleth, Casey M. Godwin, R. Michael McKay, Michael D. Rennie, Michael R. Twiss, Donald Uzarski, Henry A. Vanderploeg, Trista Vick‐Majors, Arthur Zastepa, Marguerite A. Xenopoulos   +19 more
wiley   +1 more source

Identifying the sources and sinks of CDOM/FDOM across the Mauritanian Shelf and their potential rolein the decomposition of Superoxide (O2-)

Frontiers in Marine Science, 2016
Superoxide (O2-) is a short lived reactive oxygen species (ROS) formed in seawater by photochemical or biological sources, it is important in the redox cycling of trace elements and organic matter in the ocean.
Maija Iris Heller, Maija Iris Heller, Kathrin Wuttig, Kathrin Wuttig, Peter Leslie Croot, Peter Leslie Croot   +5 more
doaj   +1 more source

Joint Tensor Factorization and Outlying Slab Suppression with Applications

, 2015
We consider factoring low-rank tensors in the presence of outlying slabs. This problem is important in practice, because data collected in many real-world applications, such as speech, fluorescence, and some social network data, fit this paradigm.
Bro, Rasmus, Fu, Xiao, Huang, Kejun, Ma, Wing-Kin, Sidiropoulos, Nicholas D.   +4 more
core   +1 more source

Colored Plastic Pollution Reshapes Aquatic Microbial Community and Resistance Profile via Divergent Pseudonatural Dissolved Organic Matter

Advanced Science, Volume 13, Issue 3, 14 January 2026.
By altering the quantity and chemical composition of polyethylene‐derived dissolved organic matter, plastic color dynamically regulates bacterial metabolic interactions, thereby reshaping community resistance expression and facilitating the dissemination of antibiotic resistance.
Shuting Fang, Shuqin Liu, Jingui Huang, Yiquan Huang, Chao Chen, Qijun Ruan, Pengran Guo, Gangfeng Ouyang   +7 more
wiley   +1 more source

Fluorescence quantum yields of natural organic matter and organic compounds: Implications for the fluorescence-based interpretation of organic matter composition

Frontiers in Marine Science, 2015
Absorbance and fluorescence spectroscopy are economical tools for tracing the supply, turnover and fate of dissolved organic matter (DOM). The colored and fluorescent fractions of DOM (CDOM and FDOM, respectively) are linked by the apparent fluorescence ...
Urban Johannes Wünsch, Kathleen R Murphy, Colin Andrew Stedmon   +2 more
doaj   +1 more source

Multi-Aspect Incremental Tensor Decomposition Based on Distributed In-Memory Big Data Systems

Journal of Data and Information Science, 2020
We propose InParTen2, a multi-aspect parallel factor analysis three-dimensional tensor decomposition algorithm based on the Apache Spark framework. The proposed method reduces re-decomposition cost and can handle large tensors.
Yang Hye-Kyung, Yong Hwan-Seung
doaj   +1 more source

Comparative Binding Studies of the Chelators Methylolanthanin and Rhodopetrobactin B to Lanthanides and Ferric Iron

ChemBioChem, Volume 27, Issue 1, January 2026.
The synthesis and the investigation of the lanthanide (Ln) and Fe‐binding properties of the putative lanthanophore methylolanthanin (MLL) and the siderophore rhodopetrobactin B (RPB B) are reported. While both chelators bind Lns, they unexpectedly precipitate with Lns under biologically relevant conditions and thereby challenge the proposed classic ...
Sophie M. Gutenthaler‐Tietze, Michael Mertens, Manh Tri Phi, Patrick Weis, Björn Drobot, Alexander Köhrer, Robin Steudtner, Uwe Karst, N. Cecilia Martinez‐Gomez, Lena J. Daumann   +9 more
wiley   +1 more source