Results 71 to 80 of about 175,846 (341)
A chemical kinetics code for modelling exoplanetary atmospheres [PDF]
, 2019 Chemical compositions of exoplanets can provide key insights into their physical processes, and formation and evolutionary histories. Atmospheric spectroscopy provides a direct avenue to probe exoplanetary compositions. However, whether obtained in transit or thermal emission, spectroscopic observations probe limited pressure windows of planetary ...
arxiv +1 more source
Aging and Cancer, EarlyView.Aging weakens the blood–brain barrier (BBB), increasing susceptibility to CNS cancers and complicating treatment. This review examines BBB deterioration, its impact on drug delivery, and potential interventions like targeting neuroinflammation and advanced therapies.
Quang La, Aiman Baloch, David F. Lo
wiley +1 more source
Evaluation of the performance of a particle concentrator for online instrumentation [PDF]
Atmospheric Measurement Techniques, 2014 The performance of the miniature Versatile Aerosol Concentration Enrichment System (m-VACES; Geller et al., 2005) was investigated in laboratory and field studies using online instruments. Laboratory tests focused on the behavior of monodisperse ammonium
S. Saarikoski +7 more
doaj +1 more source
Methods for working with problem residents in medical physics residency education
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Medical physics residency training programs may occasionally encounter residents requiring additional intervention beyond normal training efforts. In the literature, these residents are referred to as “problem” residents. While the physician literature on the subject is valuable, this paper specifically focuses on dealing with a problem ...
Christopher J. Watchman, Dandan Zheng
wiley +1 more source
Aerosol and Air Quality Research, 2021 Nanoparticles are a topic of interest because of their effects on human health and the climate, but the current options for evaluating their chemical composition—one of the key properties that determine the mechanisms of these effects—remain very limited
Sampsa Martikainen +5 more
doaj +1 more source
Ranges of Atmospheric Mass and Composition of Super Earth Exoplanets [PDF]
, 2008 Terrestrial-like exoplanets may obtain atmospheres from three primary sources: Capture of nebular gases, degassing during accretion, and degassing from subsequent tectonic activity. Here we model degassing during accretion to estimate the range of atmospheric mass and composition on exoplanets ranging from 1 to 30 Earth masses. We use bulk compositions
arxiv +1 more source
Advanced Biology, EarlyView.The paper explores the creation and characterization of vesicles through biocatalytic Polymerization‐Induced Self‐Assembly (bioPISA), focusing on achieving size uniformity using centrifugation techniques. It examines the effects of stirring speed on vesicle morphology and analyses the internal polymer‐rich structure using fluorescence correlation ...
Andrea Belluati +7 more
wiley +1 more source
Limitation of Atmospheric Composition by Combustion–Explosion in Exoplanetary Atmospheres [PDF]
The Astrophysical Journal, 2018 Abstract This work presents theoretical studies that combine aspects of combustion and explosion theory with exoplanetary atmospheric science. Super-Earths could possess a large amount of molecular hydrogen depending on disk, planetary, and stellar properties.
John Lee Grenfell +6 more
openaire +5 more sources
Advanced Biology, EarlyView.Hypoxia promotes the epithelial‐mesenchymal transition (EMT) of renal tubular epithelial cells via the SIRT1‐FoxO1‐FoxO3‐autophagy pathway, thereby resulting in the fibrosis of renal tubular epithelial cells. Activation of SIRT1 or induction of autophagy inhibits this process, alleviating hypoxia‐induced fibrosis.
Guangyu Wang +6 more
wiley +1 more source
Composition of Atmospheric Precipitation in Sweden
Tellus, 1954 Preliminary charts are presented based on two years of data, to demonstrate the geographic distribution over Sweden of the annual amounts of Na, Cl, K, Ca, NH3-N and NO3-N brought to the surface of the earth by precipitation. The ratios of these total amounts to the total amounts of Na deposited during the same time interval are shown to possess ...
Erik Eriksson, A. Emanuelsson, H. Egnér
openaire +3 more sources