Results 51 to 60 of about 1,793,599 (278)

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Induction heating and performance evaluation of steel wool/brucite fiber modified asphalt mixture

open access: yesFrontiers in Materials
The application of brucite fiber in asphalt mixtures utilizes solid waste, protects the environment, and improves the road performance of asphalt mixtures.
Deming Han   +4 more
doaj   +1 more source

Effect of Fractionation Process and Addition of Composite Crumb Rubber-Modified Asphalt on Road Performance Variability of Recycled Asphalt Mixtures with High Reclaimed Asphalt Pavement (RAP) Content

open access: yesBuildings, 2023
The application of reclaimed asphalt pavement (RAP) can help reduce resource waste and environmental pollution in road construction. However, so far, only a small percentage of RAP materials can be used in road construction.
Wenwu Wei   +6 more
doaj   +1 more source

Laboratory Procedure for Measuring the Effectiveness of Dust Control Palliatives [PDF]

open access: yes, 2017
Creation of fugitive dust on unpaved roads results in the loss of up to 25 mm (one inch) of surface aggregate annually (FHWA, 1998). On these roads, shearing forces created by vehicles dislodge the fine aggregate fraction (silt and clay) that binds the ...
Barnes, David, Connor, Billy
core  

Uncertainty-dependent data collection in vehicular sensor networks

open access: yes, 2012
Vehicular sensor networks (VSNs) are built on top of vehicular ad-hoc networks (VANETs) by equipping vehicles with sensing devices. These new technologies create a huge opportunity to extend the sensing capabilities of the existing road traffic control ...
Płaczek, Bartłomiej
core   +1 more source

Sequels to the Chicago Aviation Conference [PDF]

open access: yes, 1946
This research aims to explore and propose a more effective management of rail and road infrastructure and the possibility of a more resource-efficient road and rail infrastructure by applying business models based on performance and a life-cycle ...
Waldo, Richard Kermit
core   +2 more sources

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

open access: yesFEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel   +13 more
wiley   +1 more source

Experimental study on the road performance of reduced density fly ash–clayey sand subgrade mixtures from the Yellow River floodplain

open access: yesFrontiers in Mechanical Engineering
To address challenges in subgrade construction using Yellow River floodplain soils, this study developed a reduced density filler by mixing aged fly ash with locally sourced clayey sand. The research aimed to establish a robust framework for bridging the
Xiuru Jia   +3 more
doaj   +1 more source

The recycling of construction waste asphalt mixes – study case [PDF]

open access: yesArchives of Civil Engineering
Construction waste (CW) has become one of the main factors exacerbating regional environmental damage, and how to recycle and utilize CW as a resource is also a key focus of future urban construction in China.
Mengya Jiang, Xiaoqing Cai
doaj   +1 more source

A Grotian Tradition of Theory and Practice: Grotius, Law, and Moral Skepticism in the Thought of Hedley Bull [PDF]

open access: yes, 1997
This paper describes a system that incrementally constructs an increasingly accurate road map from GPS traces from a single vehicle. The resulting road map contains information about the road such as road gradient which can be used by functions in a ...
Kingsbury, Benedict
core   +1 more source

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