Results 31 to 40 of about 29,288 (310)

Perspectives on conservation grazing: The need for monitoring and communication

Ecological Solutions and Evidence
Conservation grazing is widely used to manage open ecosystems, but inconsistent definitions and inadequate reporting of grazing patterns hinder effective communication among researchers, practitioners and policymakers, limiting the understanding and ...
Jonathan Millett, Maud A. J. vanSoest, Sally Edmondson, Peter Gahan, Natalie Hunt, Dave Mercer, James O'Brien, Barry Smith, Charlotte Webster, Ciara Dwyer   +9 more
doaj   +1 more source

Niche partitioning in tenebrionid species (Coleoptera: Tenebrionidae) inhabiting Mediterranean coastal dunes

European Journal of Entomology, 2016
We analyzed the abundance, distribution and niche overlap of species (Pianka's Ojk index) in tenebrionid beetle communities inhabiting different biotopes in Tyrrhenian and Adriatic sand dunes.
Simone FATTORINI, Davide BERGAMASCHI, Cristina MANTONI, Alicia T.R. ACOSTA, Andrea DI GIULIO   +4 more
doaj   +1 more source

Mechanisms of Dune Growth and Decay in Rivers

Geophysical Research Letters, 2021
The mechanisms responsible for dune growth and decay remain a major unknown in river dynamics. Two theories have been supported by experiments and numerical models. A hydrodynamic explanation suggests that growth and decay occur due to phase lags between
Ryan W. Bradley, Jeremy G. Venditti
doaj   +1 more source

From Materials to Medical Images: Translating Perovskite‐Based X‐Ray Detectors Toward Clinical Imaging

Advanced Science, EarlyView.
This review examines perovskite‐based X‐ray detectors from a materials‐to‐medical‐images perspective. Recent progress in perovskite‐based X‐ray detectors is discussed with emphasis on their relevance to clinical imaging. The key barriers to clinical implementation are analyzed.
Sibin Wang, Yongrui Yang, Kun Zhang, Xiaojuan Lu, Hong Yin, Yali Qiao, Xiaojia Zheng, Xiao Zhang, Yanlin Song   +8 more
wiley   +1 more source

Anthropogenic degradation of dunes within a city: a disappearing feature of the cultural landscape of Toruń (Poland)

Journal of Maps, 2021
The article presents changes in the topography of the Toruń area due to the degradation of dunes by human activity, and a reconstruction of their earlier location and morphology.
Paweł Molewski
doaj   +1 more source

Summary of the Second International Planetary Dunes Workshop: Planetary Analogs — Integrating Models, Remote Sensing, and Field Data, Alamosa, Colorado, USA, May 18–21, 2010

, 2010
The Second International Planetary Dunes Workshop took place in Alamosa, Colorado, USA from May 18–21, 2010. The workshop brought together researchers from diverse backgrounds to foster discussion and collaboration regarding terrestrial and extra ...
Tirsch, D., Lancaster, N., Lori K. Fenton, Hayward, R.K., Titus, T.N., Bishop, Marc A., Tirsch, Daniela, Andrew Valdez, Bourke, M.C., Bristow, Charles S., Bourke, Mary C., Valdez, Andrew, Michaels, T.I., Lancaster, Nicolas, Rosalyn K. Hayward, Briony H. Horgan, Horgan, B.H., Horgan, Briony H., Bishop, M.A., Mary C. Bourke, Timothy N. Titus, Timothy I. Michaels, Hayward, Rosalyn K., Michaels, Timothy I., Charles S. Bristow, Mark A. Bishop, Bristow, Charlie S., Daniela Tirsch, Fenton, L.K., Titus, Timothy N., Nicholas Lancaster, Fenton, Lori   +31 more
core   +1 more source

Disentangling the relationships between denomination of origin regulatory councils activities and Spanish wineries' export performance

Agribusiness, EarlyView.
Abstract World markets for quality differentiated agri‐food products are highly competitive, presenting significant challenges for firms aiming to compete effectively. Government agencies and business organizations often implement various export promotion policies to address these challenges.
Nicolás Depetris‐Chauvin, Marta Fernández‐Olmos   +1 more
wiley   +1 more source

Large eddy simulation of water flow over series of dunes

Water Science and Engineering, 2011
Large eddy simulation was used to investigate the spatial development of open channel flow over a series of dunes. The three-dimensional filtered Navier-Stokes (N-S) equations were numerically solved with the fractional-step method in sigma coordinates ...
Jun Lu, Ling-ling Wang, Hai Zhu, Hui-chao Dai   +3 more
doaj   +1 more source

Inferring Airflow Across Martian Dunes From Ripple Patterns and Dynamics

Frontiers in Earth Science, 2021
Large ripples form striking patterns on the slopes of martian sand dunes which can be mapped and tracked using high-resolution optical images. The ripples vary in orientation, wavelength, plan-view morphology, and rates of migration.
D. R. Hood, D. R. Hood, R. C. Ewing, K. P. Roback, K. Runyon, J.-P. Avouac, M. McEnroe   +6 more
doaj   +1 more source

The role of venture‐financed startups in innovation for US agriculture

American Journal of Agricultural Economics, EarlyView.
Abstract To evaluate the role played by startup companies in the innovation ecosystem of US agriculture, we compile a unique dataset of 6024 new entrants founded 1987–2019 that details their financing lifecycles, annual economic performance, and patenting activities.
Gregory D. Graff, Charles A. W. de Grazia, Nicholas E. Rada   +2 more
wiley   +1 more source