Results 81 to 90 of about 1,117,135 (403)

Plastic Debris in 29 Great Lakes Tributaries: Relations to Watershed Attributes and Hydrology.

open access: yesEnvironmental Science and Technology, 2016
Plastic debris is a growing contaminant of concern in freshwater environments, yet sources, transport, and fate remain unclear. This study characterized the quantity and morphology of floating micro- and macroplastics in 29 Great Lakes tributaries in six
A. Baldwin, S. Corsi, S. Mason
semanticscholar   +1 more source

Phagocytosis of Necrotic Debris at Sites of Injury and Inflammation

open access: yesFrontiers in Immunology, 2020
Clearance of cellular debris is required to maintain the homeostasis of multicellular organisms. It is intrinsic to processes such as tissue growth and remodeling, regeneration and resolution of injury and inflammation.
J. Westman, S. Grinstein, P. E. Marques
semanticscholar   +1 more source

STar-DETR: A Lightweight Real-Time Detection Transformer for Space Targets in Optical Sensor Systems

open access: yesSensors
Optical sensor systems are essential for space target detection. However, previous studies have prioritized detection accuracy over model efficiency, limiting their deployment on resource-constrained sensors.
Yao Xiao   +5 more
doaj   +1 more source

Origin and abundance of beach debris in the Balearic Islands

open access: yesScientia Marina, 2007
The abundance, nature and possible sources of litter on 32 beaches on the Balearic Islands (Mediterranean Sea) were investigated in 2005. Mean summer abundances in the Balearics reached approximately 36 items m-1, with a corresponding weight of 32±25 g m-
Lorena Martinez-Ribes   +3 more
doaj   +1 more source

Chemical-Physical Model of Gaseous Mercury Emissions from the Demolition Waste of an Abandoned Mercury Metallurgical Plant

open access: yesApplied Sciences, 2023
Soils from decommissioned Hg mine sites usually exhibit high levels of total mercury concentration. This work examines the behavior of mercury in the atmosphere on samples of contaminated debris of a demolished metallurgical plant present in La Soterraña
Rafael Rodríguez   +3 more
doaj   +1 more source

An Ontological Architecture for Orbital Debris Data [PDF]

open access: yesEarth Science Informatics (Aug 2015) 9:67, pp.67-82, Springer, 2017
The orbital debris problem presents an opportunity for inter-agency and international cooperation toward the mutually beneficial goals of debris prevention, mitigation, remediation, and improved space situational awareness (SSA). Achieving these goals requires sharing orbital debris and other SSA data. Toward this, I present an ontological architecture
arxiv   +1 more source

Debris Disks: Structure, Composition, and Variability [PDF]

open access: yesAnnual Review of Astronomy and Astrophysics, 2018
Debris disks are tenuous, dust-dominated disks commonly observed around stars over a wide range of ages. Those around main sequence stars are analogous to the Solar System's Kuiper Belt and zodiacal light.
A. Hughes   +4 more
semanticscholar   +1 more source

Planetesimals in Debris Disks [PDF]

open access: yes, 2017
Planetesimals form in gas-rich protoplanetary disks around young stars. However, protoplanetary disks fade in about 10 Myr. The planetesimals (and also many of the planets) left behind are too dim to study directly. Fortunately, collisions between planetesimals produce dusty debris disks.
George H. Rieke, Andrew N. Youdin
openaire   +3 more sources

Integrative analysis of circulating tumor cells (CTCs) and exosomes from small‐cell lung cancer (SCLC) patients: a comprehensive approach

open access: yesMolecular Oncology, EarlyView.
This study simultaneously investigated circulating tumor cells (CTCs) and exosomes from small‐cell lung cancer (SCLC) patients. The elevated expression of JUNB and CXCR4 in CTCs was a poor prognostic factor for SCLC patients, whereas exosomal overexpression of these biomarkers revealed a high discrimination ability of patients from healthy individuals,
Dimitrios Papakonstantinou   +13 more
wiley   +1 more source

Separation of microplastics from deep-sea sediment using an affordable, simple to use, and easily accessible density separation device

open access: yesMicroplastics and Nanoplastics
Microplastics accumulate in the environment but methods to extract particles from sediment for quantification and identification often lack accuracy and reproducibility.
Katherine R. Shaw   +7 more
doaj   +1 more source

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