Results 61 to 70 of about 73,680 (311)

European aerosol phenomenology − 8: Harmonised source apportionment of organic aerosol using 22 Year-long ACSM/AMS datasets

open access: yesEnvironment International, 2022
Organic aerosol (OA) is a key component of total submicron particulate matter (PM1), and comprehensive knowledge of OA sources across Europe is crucial to mitigate PM1 levels.
Gang Chen   +69 more
doaj   +1 more source

Mesoscale Recovery of Microglial and Neuronal Dynamics After Craniotomy Across Wide Cortex in Transgenic Mice

open access: yesAdvanced Science, EarlyView.
This study employs longitudinal fluorescence imaging in transgenic mice to map post‐craniotomy cortical recovery. We identify distinct neuroimmune recovery phases: microglial structural inflammation peaks at ∼10 days, neuronal structural intensity peaks at ∼14 days and correlates with microglial activity, and functional network modularity is most ...
Guihua Xiao   +13 more
wiley   +1 more source

Analysis of Composition Differences between Huazhou Citri Grandis Exocarpium and Guangxi Citri Grandis Exocarpium Based on Portable GC-MS and HS/SPME-GC×GC-TOF MS

open access: yesZhipu Xuebao
The volatile components of Citri Grandis Exocarpium from Huazhou (CGEH) and Guangxi (CGEG) were analyzed by portable gas chromatography-mass spectrometry (GC-MS) and comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry (GC×GC-
Kai-xuan LI   +6 more
doaj   +1 more source

Modeling and source apportionment of diesel particulate matter [PDF]

open access: yesEnvironment International, 2008
The fine and ultra fine sizes of diesel particulate matter (DPM) are of greatest health concern. The composition of these primary and secondary fine and ultra fine particles is principally elemental carbon (EC) with adsorbed organic compounds, sulfate, nitrate, ammonia, metals, and other trace elements.
L A, Díaz-Robles, J S, Fu, G D, Reed
openaire   +2 more sources

Diffusion‐MRI‐Based Estimation of Cortical Architecture via Machine Learning (DECAM) in Primate Brains

open access: yesAdvanced Science, EarlyView.
We present Diffusion‐MRI‐based Estimation of Cortical Architecture via Machine Learning (DECAM), a deep‐learning framework for estimating primate brain cortical architecture optimized with best response constraint and cortical label vectors. Trained using macaque brain high‐resolution multi‐shell dMRI and histology data, DECAM generates high‐fidelity ...
Tianjia Zhu   +7 more
wiley   +1 more source

The Constitutionality of a National Wealth Tax [PDF]

open access: yes, 2018
Economic inequality threatens America’s constitutional democracy. Beyond obvious harms to our nation’s social fabric and people’s lives, soaring economic inequality translates into political inequality and corrodes democratic institutions and values. The
Dellinger, Walter E., III, Johnsen, Dawn
core   +3 more sources

Convergent and Divergent Connectivity Patterns of the Arcuate Fasciculus in Macaques and Humans

open access: yesAdvanced Science, EarlyView.
This study employs viral‐based single‐neuron tracing and dMRI‐based whole‐brain tractography to investigate arcuate fasciculus (AF) trajectories in macaque monkeys, and compares with the human AF connectome using spectral embedding. Results demonstrate conserved AF topography spanning temporoparietal‐auditory‐frontal pathways across primates, with ...
Jiahao Huang   +17 more
wiley   +1 more source

Year-round radiocarbon-based source apportionment of carbonaceous aerosols at two background sites in South Asia [PDF]

open access: yes, 2012
Atmospheric Brown Clouds (ABC), regional-scale haze events, are a significant concern for both human cardiopulmonary health and regional climate impacts. In order to effectively mitigate this pollution-based phenomenon, it is imperative to understand the
Andersson, A   +8 more
core   +1 more source

Dual‐Site Synergistic Mechanism via Single‐Atom and Vacancy Drives Lattice Oxygen Activation in Layered Double Hydroxides

open access: yesAdvanced Science, EarlyView.
A strategy utilizing high‐energy ion beam technology to engineer defects in layered double hydroxide (LDH) nanosheets enables the high loading of non‐noble metal Mo single atoms. The synergistic effect between oxygen vacancies and single atoms promotes a novel mechanism for lattice oxygen activation, thereby significantly enhancing the oxygen evolution
Shixin Wu   +9 more
wiley   +1 more source

Primary and secondary organic aerosol origin by combined gas-particle phase source apportionment [PDF]

open access: yesAtmospheric Chemistry and Physics, 2013
Secondary organic aerosol (SOA), a prominent fraction of particulate organic mass (OA), remains poorly constrained. Its formation involves several unknown precursors, formation and evolution pathways and multiple natural and anthropogenic sources. Here a
M. Crippa   +14 more
doaj   +1 more source

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