Results 131 to 140 of about 370,158 (282)

Effect of population reinforcement method, site, and plant characteristics on early establishment of the rare endemic plant species Minuartia smejkalii

open access: yesNordic Journal of Botany, EarlyView.
Many habitat‐specialist plant species have been endangered by fragmentation or destruction of their habitats. Minuartia smejkalii is a serpentinophyte endemic to the Czech Republic. It is highly threatened by recent habitat destruction and fragmentation, calling for effective conservation measures.
Alrun Siebenkäs   +3 more
wiley   +1 more source

Update on Ouratea cidiana Sastre (Ochnaceae), a microendemic species from the Amazon: enlightening the identity and conservation status

open access: yesNordic Journal of Botany, EarlyView.
Ouratea cidiana (Ochnaceae) is a microendemic shrub species from the Brazilian Amazonia, occurring along the banks of the Trombetas River and restricted to the Cachoeira Porteira region, in western Pará State. Since the original collection nearly forty years ago, no additional records have been made, which is concerning given the continuous decline in ...
Clebiana de Sá Nunes   +4 more
wiley   +1 more source

Safe Tractor Operations: Road Safety for Tractors and Farm Machinery

open access: yesEDIS
The Safe Tractor Operations series contains six articles devoted to tractor safety. This publication discusses practical tips to help prevent collisions involving tractors and other farm machinery on public roads.
Serap Gorucu   +2 more
doaj   +1 more source

Congestion Relief: Assessing the Case for Road Tolls in Canada [PDF]

open access: yes
Experience with road pricing generally — and congestion pricing specifically — is growing around the world. Research and planning in Canada should begin now on road pricing for heavily congested highways and streets.road pricing, traffic ...
Robin Lindsey
core  

Implications of heterogeneous embankment conditions for geoelectrical investigations on dams: A case study at Mactaquac Dam, Canada

open access: yesNear Surface Geophysics, EarlyView.
Abstract Electrical resistivity tomography (ERT) has been shown to be effective for surveying and monitoring dams, due to the method's sensitivity to moisture content and relevant physical properties (e.g., porosity). Automated ERT systems, capable of time‐lapse monitoring, can be used to detect variations in ground conditions.
John S. Ball   +4 more
wiley   +1 more source

Spatial heterogeneity of KRAS mutations in colorectal cancers in northern France

open access: yesCancer Management and Research, 2019
Anthony Turpin,1–3 Michael Genin,4 Mohamed Hebbar,1,2 Florent Occelli,5 Caroline Lanier,5 Francis Vasseur,4 Clotilde Descarpentries,6 Diane Pannier,7 Anne Ploquin1 1Medical oncology unit, Hôpital Claude Huriez, F-59000 Lille, France; 2Lille ...
Turpin A   +8 more
doaj  

Green pathways to mental health: Relationships between treescapes and well‐being and distress

open access: yesPeople and Nature, EarlyView.
Abstract We aimed to evaluate the mental health benefits and possible mechanisms of objective and subjective treescape exposures whilst also accounting for relationships with residential area greenspace in general. Independent variables were objective measures of residential neighbourhood tree cover density and woody linear features, and a subjective ...
Ian Alcock   +5 more
wiley   +1 more source

The limits to competition in urban bus services in developing countries [PDF]

open access: yes
The authors make the case for the return of regulation in the organization of urban bus services in developing countries. During the past three decades urban public transport policy has gone through several phases.
Estache, Antonio, Gomez-Lobo, Andres
core  

Permafrost Mass Wasting in Ice‐Rich Landscapes: Recent Advances (2013 to 2024) on Mechanisms, Dynamics and Impacts

open access: yesPermafrost and Periglacial Processes, EarlyView.
ABSTRACT Across circumpolar permafrost regions, climate change is destabilizing ice‐rich hillslopes, increasing the frequency and magnitude of thaw‐driven mass wasting. This paper reviews recent studies (2013–2024) on thaw‐driven mass wasting, focusing on the processes, morphology and trajectories of geomorphic change and their implications for ...
J. M. Young   +5 more
wiley   +1 more source

Permafrost Terrain Disturbance Susceptibility in the Nacho Nyäk Tagé (Stewart River) Watershed, Yukon, Canada

open access: yesPermafrost and Periglacial Processes, EarlyView.
ABSTRACT The Nacho Nyäk Tagé (Stewart River) watershed in central Yukon (Canada) is characterized by discontinuous permafrost that is locally highly sensitive to thaw. This study aims to map the spatial distribution of permafrost terrain disturbances (PTDs) in the watershed and model thaw susceptibility to support community‐led land‐use planning by the
Frederic Brieger   +2 more
wiley   +1 more source

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