Results 71 to 80 of about 1,229,399 (284)

Ecological values of Hamilton urban streams (North Island, New Zealand): constraints and opportunities for restoration [PDF]

, 2009
Urban streams globally are characterised by degraded habitat conditions and low aquatic biodiversity, but are increasingly becoming the focus of restoration activities.
Aldridge, Brenda Michelle Te Aroha, Collier, Kevin J., Hicks, Brendan J., Kelly, Johlene, Macdonald, Amy, Smith, Brian J., Tonkin, Jonathan D.   +6 more
core  

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

Advanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies, Marcos Eduardo G. Carmo, Gonçalves J. Marrenjo, Stephan Reuther, Patrick Ganswindt, Antonio Otavio T. Patrocinio, Thomas Bein, Osmando F. Lopes, Jenny Schneider   +8 more
wiley   +1 more source

Fish community composition differs in rural and urban Neotropical streams [PDF]

Acta Limnologica Brasiliensia
: Aquatic ecosystems have a great diversity of habitats, including streams that are of extreme ecological and economic importance but have undergone impacts, such as the input of domestic and industrial waste and deforestation of riparian forest. However,
Eduarda Samantha Ribeiro, Tatiane Mantovano, Dyego Leonardo Ferraz Caetano, Luana Gabriela Marques da Silva, Leandro da Silva, Thiago Rodrigues Barbosa, Fernando Emmanuel Gonçalves Vieira   +6 more
doaj   +1 more source

Continuous Monitoring of Distributed Data Streams over a Time-based Sliding Window [PDF]

, 2010
The past decade has witnessed many interesting algorithms for maintaining statistics over a data stream. This paper initiates a theoretical study of algorithms for monitoring distributed data streams over a time-based sliding window (which contains a ...
Chan, Ho-Leung, Lam, Tak-Wah, Lee, Lap-Kei, Ting, Hing-Fung   +3 more
core   +3 more sources

Enhancing CoFe Catalysts with V2CTX MXene‐Derived Materials for Anion Exchange Membrane Electrolyzers

Advanced Functional Materials, EarlyView.
MXene dervied CoFe composites show increased initial Oxygen Evolution Reaction (OER) activity compared to the pure CoFe and MXene in an Anion Exchange Membrane device. Vanadium vacancies in the MXene plays a role in increased OER activity and hinders Fe leaching in the AEM device over using the pure V2C MXene as a support material for the CoFe ...
Can Kaplan, Karuppasamy Dharmaraj, Thorsten Schultz, Leiqiang Qin, Ningjun Chen, Danielle A. Douglas‐Henry, Bastian Schmiedecke, Merve Buldu‐Akturk, Axel Zuber, Iris Dorbandt, Maximilian Reinhardt, Yael Rodriguez‐Ayllon, Yan Lu, Valeria Nicolosi, Norbert Koch, Johanna Rosen, Michelle P. Browne   +16 more
wiley   +1 more source

Responses of salmonids to habitat changes [PDF]

, 1991
Streams in western North America provide spawning and rearing habitats for several species of salmon and trout that are of substantial economic importance in the region.
Bisson, P. A., Hall, James D., Hicks, Brendan J., Sedell, J. R.   +3 more
core   +1 more source

Headwaters are critical reservoirs of microbial diversity for fluvial networks [PDF]

, 2013
Streams and rivers form conspicuous networks on the Earth and are among nature's most effective integrators. Their dendritic structure reaches into the terrestrial landscape and accumulates water and sediment en route from abundant headwater streams to a
Altermatt F, Gordon ND, Holyoak M, Leopold LB, R Development Core Team, Tilman D, Wheeler B   +6 more
core   +2 more sources

Unassisted Photoelectrochemical Hydrogen Production Coupled with Selective Glucose Oxidation Using Metal Halide Perovskite Photoanodes

Advanced Functional Materials, EarlyView.
A metal halide perovskite‐based photoanode integrated with a CoNiFe layered double hydroxide (LDH) cocatalyst is reported for selective glucose oxidation reaction (GOR), achieving simultaneous and unassisted photoelectrochemical hydrogen production. This system delivers high photocurrent density, excellent Faradaic efficiency of GOR, and strong techno ...
Shujie Zhou, Xu Liu, Michael Gunawan, Yihao Shan, Ming Zhang, Shaine Lucas, Adhi Satriyatama, Denny Gunawan, Ao Wang, Xiaojie Yuan, Kaiwen Sun, Rose Amal, Xiaojing Hao   +12 more
wiley   +1 more source

Kinematically Detected Halo Streams

, 2016
Clues to the origins and evolution of our Galaxy can be found in the kinematics of stars around us. Remnants of accreted satellite galaxies produce over- densities in velocity-space, which can remain coherent for much longer than spatial over-densities ...
Smith, Martin C.
core   +1 more source

Streams of Consciousness

Journal of Cognitive Neuroscience, 2002
When investigating the neural correlates of consciousness, neuroscientists distinguish between ‘‘conscious state’’ (being awake as opposed to asleep or in a coma), which is regulated by brainstem and thalamic nuclei, and ‘‘conscious representation’’ (awareness of specific phenomenal experience).
openaire   +3 more sources