Results 71 to 80 of about 185,610 (340)

Spatial distribution of surface-sediment diatom assemblages from 45 Tibetan Plateau lakes and the development of a salinity transfer function

Ecological Indicators, 2023
The Tibetan Plateau (TP) is often referred to as the “Asian Water Tower”, as it plays a crucial role in supplying water for ∼1.9 billion people.
Siwei Yu, Junbo Wang, Kathleen M. Rühland, Liping Zhu, Jianting Ju, Chong Liu, Qingfeng Ma, John P. Smol   +7 more
doaj   +1 more source

Automated Diatom Classification (Part B): A Deep Learning Approach

, 2017
Diatoms, a kind of algae microorganisms with several species, are quite useful for water quality determination, one of the hottest topics in applied biology nowadays. At the same time, deep learning and convolutional neural networks (CNN) are becoming an
Aníbal Pedraza, G. Bueno, O. Deniz, G. Cristóbal, S. Blanco, M. Borrego-Ramos   +5 more
semanticscholar   +1 more source

Benthic Diatom Based Indices for Water Quality Assessment in Two Subtropical Streams

Frontiers in Microbiology, 2017
Benthic diatoms have been universally used as indicators to assess water quality in lotic ecosystems. However, most diatom-based indices developed in Europe have not been widely used or tested in other continents such as Asia or Oceania.
X. Tan, Quanfa Zhang, M. Burford, F. Sheldon, S. Bunn   +4 more
semanticscholar   +1 more source

Understanding Decoherence of the Boron Vacancy Center in Hexagonal Boron Nitride

Advanced Functional Materials, EarlyView.
State‐of‐the‐art computations unravel the intricate decoherence dynamics of the boron vacancy center in hexagonal boron nitride across magnetic fields from 0 to 3 T. Five distinct regimes emerge, dominated by nuclear spin interactions, revealing optimal coherence times of 1–20 µs in the 180–350 mT range for isotopically pure samples.
András Tárkányi, Viktor Ivády
wiley   +1 more source

Factors influencing the stable carbon isotopic composition of suspended and sinking organic matter in the coastal Antarctic sea ice environment [PDF]

, 2011
A high resolution time-series analysis of stable carbon isotopic signatures in particulate organic carbon (δ¹³C_POC) and associated biogeochemical parameters in sea ice and surface waters provides an
Annett, A.L., Carson, D.S., Clarke, A., Crosta, X., Dougans, J., Fallick, A.E., Ganeshram, R.S., Henley, S.F., Tait, A., Weston, K.   +9 more
core   +7 more sources

Engineering Relative Spatial Structure of Dual Atomic Sites with Asymmetric Coordination for High‐Performance Hydrogen Evolution Activity

Advanced Functional Materials, EarlyView.
Dual‐atom catalysts featuring varying spatial configurations of metal sites (Pt1Fe1 DACs) are employed to systematically investigate the influence of spatial arrangements on the electronic structure and catalytic activity of active sites. Notably, the 3D asymmetric Pt1Fe1‐TAC dimer, featuring strong interatomic interactions, demonstrates superior ...
Yi Guan, Xiaozhang Yao, Chuang Xue, Zhongxin Song, Xiangzhong Ren, Tsun‐Kong Sham, Li‐Min Liu, Lei Zhang, Xueliang Sun   +8 more
wiley   +1 more source

Silicon consumption and population density changes of dominant planktonic diatoms in Lake Constance [PDF]

, 1983
(1) Interactions between silicon concentration and diatom growth have been studied in Lake Constance with data on number and volume of cells per unit volume of water and concentration of dissolved reactive silicon. (2) Concentration of dissolved reactive
Sommer, Ulrich, Stabel, H.-H.
core   +1 more source

Bioinspired Stabilization of Fluorescent Au@SiO2 Tracers for Multimodal Biological Imaging

Advanced Functional Materials, EarlyView.
This study demonstrates a bioinspired stabilization strategy for fluorescent gold‐silica nanoparticles. Inspired by natural biosilica maturation, high‐temperature calcination transforms the silica shells, preventing dissolution in cell culture media and intracellular environments.
Wang Sik Lee, Henry Lee, Patricia Taladriz‐Blanco, Dimitri Vanhecke, Barbara Rothen‐Rutishauser, Alke Petri‐Fink   +5 more
wiley   +1 more source

In-vitro assessment and characterization of anticancer, antibacterial, and antioxidant activity of diatom-derived metabolites

Scientific Reports
Microalgae are known to produce a spectrum of highly valuable metabolites with substantial nutritional content and pharmacogenetic properties. To explore the antioxidant, antibacterial, as well as anticancer activity of five such microalgal strains ...
Raya Bhattacharjya, Rashi Tyagi, Sangita Dey, Ankita Dutta, Anoop Kumar, Mostafa M. El-Sheekh, Subha Rastogi, Nutan Kaushik, Archana Tiwari   +8 more
doaj   +1 more source

A polyphasic method for the characterization of epiphytic diatoms growing on Gelidium corneum

MethodsX
Epiphytic diatoms associated with marine macroalgae play vital ecological roles in nutrient cycling and primary production, yet their study remains limited due to the lack of standardized methodologies. This study focuses on diatom communities growing on
María Borrego-Ramos, Raquel Viso, Saúl Blanco, Begoña Sánchez-Astráin, Camino F. de la Hoz, José A. Juanes   +5 more
doaj   +1 more source