Results 71 to 80 of about 168,387 (313)

Heated aquatic microcosms for climate change experiments [PDF]

, 2000
Ponds and shallow lakes are likely to be strongly affected by climate change, and by increase in environmental temperature in particular. Hydrological regimes and nutrient cycling may be altered, plant and animal communities may undergo changes in both ...
Atkinson, David, Collings, Sally, Eaton, John, Harvey, Ian, Hatton, Keith, Heyes, Tom, McKee, Dermot, Moss, Brian, Wilson, Dave, Wolstenholme, Leander   +9 more
core  

Challenges and Opportunities in Multi‐Method Integrated Geophysical Prospection of Buried Building Remains at the Sanctuary of Olympia

Archaeological Prospection, EarlyView.
ABSTRACT Ancient Olympia was one of the most important sanctuaries and the venue for the Olympic Games in Greek and Roman times. Its remains are located in the Olympia Terrace (Peloponnese, Greece) at the present‐day confluence of the rivers Alpheios and Kladeos at the base of Mount Kronos.
Sarah Bäumler, Dennis Wilken, Peter Fischer, Lena Slabon, Timo Willershäuser, Birgitta Eder, Hans‐Joachim Gehrke, Erofili‐Iris Kolia, Franziska Lang, Oliver Pilz, Andreas Vött   +10 more
wiley   +1 more source

Mini Review on the Structure and Properties (Photocatalysis), and Preparation Techniques of Graphitic Carbon Nitride Nano-Based Particle, and Its Applications

Nanoscale Research Letters, 2018
Graphite carbon nitride (g-C3N4) is well known as one of the most promising materials for photocatalytic activities, such as CO2 reduction and water splitting, and environmental remediation through the removal of organic pollutants.
Williams Kweku Darkwah, Yanhui Ao
doaj   +1 more source

Distribution and Density of Vegetative Hydrilla Propagules in the Sediments of Two New Zealand Lakes [PDF]

, 1999
The distribution and density of hydrilla (Hydrilla verticillata (L.f.)Royle) turions and tubers in two New Zealand lakes were assessed by sampling cores of sediment from Lakes Tutira and Waikapiro each year from 1994 to 1997.
Champion, P.D., Clayton, J.S., Green, J.D., Hofstra, D.E.   +3 more
core  

Development of an empirical model for chlorophyll-a and Secchi Disk Depth estimation for a Pampean shallow lake (Argentina) [PDF]

, 2017
Shallow Pampean lakes are located in the most productive plain of Argentina. They are highly variable in salinity, turbidity and surface area. Laguna Chascomús has been monitored as a representative example of them.
Bohn, Vanesa Yael, Carmona, Facundo, Diovisalvi, Nadia Rosalia, Lagomarsino, Leonardo, Rivas, Raúl Eduardo, Zagarese, Horacio Ernesto   +5 more
core   +1 more source

Percutaneous Double‐Loaded All‐Suture Knotless Anchor at the 6‐O'Clock Position for Shoulder Instability

Arthroscopy Techniques, EarlyView.
Abstract Glenohumeral instability is a common condition encountered by orthopaedic sports surgeons, particularly in young, active athletes. Initial management is nonoperative, consisting of physical therapy, but some patients may still require surgical intervention.
Benjamin Sanderford, Kelly Wolfe, Brandon Pham, Bennett Janeski, Guy Ball   +4 more
wiley   +1 more source

Physical Constraints to Aquatic Plant Growth in New Zealand Lakes [PDF]

, 2003
The nature of aquatic plant communities often defines benthic habitat within oligotrophic and mesotrophic lakes and lake management increasingly recognizes the importance of maintaining plant diversity in order to sustain biological diversity and ...
Flanagan, M., Hawes, Ian, Riis, T., Sutherland, D.   +3 more
core  

Omnivory by planktivores stabilizes plankton dynamics, but may either promote or reduce algal biomass [PDF]

, 2010
Classical models of phytoplankton–zooplankton interaction show that with nutrient enrichment such systems may abruptly shift from limit cycles to stable phytoplankton domination due to zooplankton predation by planktivorous fish.
Araujo, A.I.L., Attayde, J.L., Corso, G., Nes, E.H., van, Scheffer, M.   +4 more
core   +2 more sources

Instability mechanism and failure characteristics of underground cavern in block system under the action of seismic waves

Deep Underground Science and Engineering, EarlyView.
Seismic waves with tensile stress, high amplitude, and low frequency are most likely to trigger block instability and sliding. Blocks with a single sliding surface are more prone to movement than those with multiple constraints, and roof‐positioned blocks are especially vulnerable to slide.
Xiao Wang, Jinxiao Liu, Gaoshuo Zhang, Wenxin Li, Changdi He   +4 more
wiley   +1 more source

Elevated atmospheric CO2 impact on carbon and nitrogen transformations and microbial community in replicated wetland

Ecological Processes, 2020
Background Elevated atmospheric CO2 has direct and indirect influences on ecosystem processes. The impact of elevated atmospheric CO2 concentration on carbon and nitrogen transformations, together with the microbial community, was evaluated with water ...
Dawei Jiang, Lifei Chen, Nan Xia, Eyram Norgbey, Desmond Ato Koomson, Williams Kweku Darkwah   +5 more
doaj   +1 more source