Results 131 to 140 of about 423,731 (370)

Tracking nitrogen losses in a greenhouse crop rotation experiment in North China using the EU-Rotate_N simulation model [PDF]

open access: yes, 2010
Vegetable production in China is associated with high inputs of nitrogen, posing a risk of losses to the environment. Organic matter mineralisation is a considerable source of nitrogen (N) which is hard to quantify.
Ad-hoc-Arbeitsgruppe Boden   +32 more
core   +1 more source

Learning Highly Dynamic Skills Transition for Quadruped Jumping Through Constrained Space

open access: yesAdvanced Robotics Research, EarlyView.
A quadruped robot masters dynamic jumps through constrained spaces with animal‐inspired moves and intelligent vision control. This hierarchical learning approach combines imitation of biological agility with real‐time trajectory planning. Although legged animals are capable of performing explosive motions while traversing confined spaces, replicating ...
Zeren Luo   +6 more
wiley   +1 more source

Behaviour and survival of wild Atlantic salmon Salmo salar captured and released while surveillance angling for escaped farmed salmon

open access: yesAquaculture Environment Interactions, 2017
In many Norwegian rivers, spawning stocks are surveyed for escaped farmed salmon with surveillance fishing by rod and reel after the recreational angling season. However, the benefits of surveillance fishing depend on the ability of wild salmon to return
Lennox, RJ   +5 more
doaj   +1 more source

The National Marine Fisheries Service’s National Bycatch Strategy [PDF]

open access: yes, 2004
The National Marine Fisheries Service (NMFS) launched its National Bycatch Strategy (NBS) in March 2003 in response to the continued fisheries management challenge posed by fisheries bycatch.
Benaka, Lee R., Dobrzynski, Tanya J.
core  

Preproteins couple the intrinsic dynamics of SecA to its ATPase cycle to translocate via a catch and release mechanism [PDF]

open access: gold, 2022
Srinath Krishnamurthy   +10 more
openalex   +1 more source

A Proof‐of‐Concept Assessment of a Novel Wearable Eyelid Muscle Device: A Pre‐Clinical Animal Cadaver Study for Eyelid Closure Restoration

open access: yesAdvanced Robotics Research, EarlyView.
This article introduces a soft wearable eyelid sling device incorporating a hydraulic soft artificial muscle (SAM) for achieving complete closure of an eyelid. The SAM is driven by a cam mechanism that provides a displacement profile closely matched with those of a healthy eyelid.
Patrick Pruscino   +7 more
wiley   +1 more source

Effect of crop management practices on the sustainability and environmental impact of organic and low input food production systems [PDF]

open access: yes, 2007
While organic farming can reduce many of the environmental problems caused by agriculture, organic farming also includes some practices which are questionable in terms of environmental effects. Organic farming practices (rotations, fertilisation regimes,
Thorup-Kristensen, K.
core  

Best practices for catch-and-release shark angling: current scientific understanding and future research

open access: hybrid, 2023
Thomas W. Horton   +8 more
openalex   +1 more source

Development of a Copper‐Free Click Reaction for Asymmetric Rh Diene Catalysis Under Confinement

open access: yesAdvanced Synthesis &Catalysis, EarlyView.
A copper‐free amino–yne click reaction enables the selective functionalization of chiral diene ligands with both soluble and immobilized amines. Substituent‐controlled stereoselectivity affords (E)‐ and (Z)‐enaminone ligands, which are converted into Rh complexes for asymmetric catalysis under homogeneous and heterogeneous conditions.
Manuel Kirchhof   +10 more
wiley   +1 more source

Improved N transfer by growing catch crops – a challenge

open access: yesJournal für Kulturpflanzen, 2019
Based on the literature amended by some unpublished data and data compilations from the literature, this review identifies the mechanisms of nitrogen (N) losses from arable land and explores the potential of growing catch crops to mitigate N loss risks ...
Klaus Sieling
doaj   +1 more source

Home - About - Disclaimer - Privacy