Results 1 to 10 of about 455,702 (308)

Colorful Collar-Covers and Bells Reduce Wildlife Predation by Domestic Cats in a Continental European Setting

open access: yesFrontiers in Ecology and Evolution, 2022
In many areas, domestic cats are the most abundant predators of small vertebrates. Due to the potential impact on prey populations by cats, there are calls to investigate the effectiveness of visual and acoustic cues as measures to reduce the cat’s ...
Madeleine Geiger   +9 more
doaj   +1 more source

Metabolites with Antioxidant Activity from Marine Macroalgae

open access: yesAntioxidants, 2021
Reactive oxygen species (ROS) attack biological molecules, such as lipids, proteins, enzymes, DNA, and RNA, causing cellular and tissue damage. Hence, the disturbance of cellular antioxidant homeostasis can lead to oxidative stress and the onset of a ...
Leto-Aikaterini Tziveleka   +4 more
doaj   +1 more source

Scavenger receptors [PDF]

open access: yesCurrent Biology, 2020
Scavenger receptors (SRs) are a large family of cell-surface receptors that are diverse in their structure and biological function and are divided into different classes. SRs can bind to a range of ligands and enhance the elimination of altered-self or non-self targets.
Ali, Alquraini, Joseph, El Khoury
openaire   +2 more sources

To scavenge or not to scavenge: that is the question [PDF]

open access: yesActa Crystallographica Section D Biological Crystallography, 2009
Analysis of a series of diffraction data sets measured from four native as well as four nicotinic acid-soaked crystals of trypsin at 100 K shows a high variability in radiation-sensitivity among individual crystals for both nicotinic acid-soaked and native crystals.
Elzbieta, Nowak   +4 more
openaire   +2 more sources

Nozzle Design of Plug-and-Play Passive Pre-Chamber Ignition Systems for Natural Gas Engines

open access: yesApplied Sciences, 2023
To evaluate the significance of the geometrical parameters of a passive pre-chamber on engine performance, this study investigated the design of a plug-and-play passive pre-chamber in a 15 L heavy-duty natural gas engine.
Wei Li   +4 more
doaj   +1 more source

To scavenge or not to scavenge, that is STILL the question [PDF]

open access: yesJournal of Synchrotron Radiation, 2012
An extensive radiation chemistry literature would suggest that the addition of certain radical scavengers might mitigate the effects of radiation damage during protein crystallography diffraction data collection. However, attempts to demonstrate and quantify such an amelioration and its dose dependence have not yielded consistent results, either at ...
Allan, E   +3 more
openaire   +4 more sources

Scavenging of Black Carbon Aerosols by Radiation Fog in Urban Central China

open access: yesAtmosphere, 2022
Radiation fog episodes are characterized by aerosol radiative properties measured at Hefei in urban central China, which hopefully benefits numerical weather prediction and air quality improvement for local governments. In this study, a high mean aerosol
Xiaolin Zhang   +6 more
doaj   +1 more source

Chemical Compositions of Rainfall Water in Nyingchi City, Tibet

open access: yesAtmosphere, 2022
Understanding precipitation chemistry is highlighted as important worldwide due to its close relationship with air quality and impacts on ecosystems.
Wei Wang   +4 more
doaj   +1 more source

In-Cylinder Heat Transfer Model Proposal Compatible with 1D Simulations in Uniflow Scavenged Engines

open access: yesApplied Sciences, 2023
Advanced two-stroke engines are considered as powertrains for range extenders in hybrid electric vehicles due to size, simplicity, cost, and power density advantages.
Héctor Climent   +3 more
doaj   +1 more source

Exploration scavenging [PDF]

open access: yesProceedings of the 25th international conference on Machine learning - ICML '08, 2008
We examine the problem of evaluating a policy in the contextual bandit setting using only observations collected during the execution of another policy. We show that policy evaluation can be impossible if the exploration policy chooses actions based on the side information provided at each time step.
John Langford 0001   +2 more
openaire   +1 more source

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