Results 91 to 100 of about 4,169 (241)

Archaeometric Characterization of Submerged Sasanian Stucco From Ghaleh Guri, Western Iran

open access: yesArchaeometry, EarlyView.
ABSTRACT The Ghaleh Guri archaeological site, a late Sasanian site with a building complex dated to 591–628 ce, lies along an ancient road linking the western Zagros to Mesopotamia. Its architectural remains, adorned with stucco, faced annual river floods yet remained stable for centuries.
Atefeh Shekofteh   +2 more
wiley   +1 more source

Evaporation Duct Modelling for a Wave-Propagation Simulator

open access: yes, 2022
Long-range communication proves to be a challenge due to the Earth’s curvature, since electromagnetic waves propagate away from the Earth’s surface in a free atmosphere. A possible solution to beyond line-of-sight communication is the atmospheric phenomenon known as the evaporation duct.
openaire   +1 more source

“Flames Over Persepolis”: New Scientific Evidence Supporting Historical Perspectives

open access: yesArchaeometry, EarlyView.
ABSTRACT This study investigates the burning of Persepolis Terrace, historically attributed to Alexander III in 330 bce. A review of classical accounts and excavation reports, combined with diagnostic surveys, confirms the fire's historicity and provides novel insights.
Maria Letizia Amadori   +10 more
wiley   +1 more source

Fecal Steroids as Tracers of Human Population and Waste Management Practices at the Ancient Maya City of Ucanal, Guatemala

open access: yesArchaeometry, EarlyView.
ABSTRACT Geochemical data compiled from dried sediments from three water reservoirs at the ancient Maya city of Ucanal, Petén, Guatemala, reveal low to undetectable fecal biomarker concentrations. These low concentrations may be the result of the aerobic decay of sterols combined with well‐managed waste disposal practices.
Jean D. Tremblay   +3 more
wiley   +1 more source

Maritime Communication in Evaporation Duct Environment With Ship Trajectory Optimization

open access: yesIEEE Transactions on Vehicular Technology
In maritime wireless networks, the evaporation duct effect has been known as a preferable condition for long-range transmissions. However, how to effectively utilize the duct effect for efficient communication design is still open for investigation. In this paper, we consider a typical scenario of ship-to-shore data transmission, where a ship collects ...
Gao, Ruifeng   +7 more
openaire   +2 more sources

The influence of age and the presence of prostate cancer on prostate volume, PSA and PSA density

open access: yesBJU International, EarlyView.
Objective To assess prostate volume (PV) changes with age in symptomatic and asymptomatic men with and without clinically significant prostate cancer (csPCa). In symptomatic patients, we additionally analysed the effect of age and csPCa on PSA and PSA‐density (PSA‐D) and compared these to current National Institute for Health and Care Excellence (NICE)
Jill Rusbridge   +4 more
wiley   +1 more source

Loss of Tooth Structure After Successive Removal of Temporary Restorative Materials by Dental Students Between Endodontic Treatment Sessions: An In Vitro Study

open access: yesEuropean Journal of Dental Education, EarlyView.
ABSTRACT Objective The aim of this study was to evaluate the loss of tooth structure after the removal of temporary restorative materials between endodontic treatment sessions performed by undergraduate students. Methods Twenty human molar teeth underwent endodontic coronal access and were randomly divided into two groups.
Márcia Cunha   +5 more
wiley   +1 more source

Continuous observation of evaporation ducts in Super Typhoon Koinu (202314) using clustered wave gliders: mechanisms and maritime communication implications

open access: yesFrontiers in Marine Science
Formed by humidity stratification in the marine atmospheric boundary layer, evaporation ducts serve as critical natural channels for maritime over-the-horizon (OTH) wireless communication.
Shuwen Wang   +19 more
doaj   +1 more source

Human IDO2 exhibits unique binding affinities distinct to those of human IDO1

open access: yesThe FEBS Journal, EarlyView.
Although indoleamine 2,3‐dioxygenase 2 (IDO2) is highly homologous to IDO1, it displays markedly lower catalytic activity. We found that IDO2 binds L‐tryptophan (L‐Trp) in a flipped orientation stabilized by the IDO2‐specific residue His143. Replacement of His143 with the IDO1‐equivalent tyrosine restored an IDO1‐like binding mode and increased ...
Shunsuke Nogi   +8 more
wiley   +1 more source

Modeling Assessment of Aquifer Contamination by Sulfate and Uranium in the Upper Arkansas River Corridor in Kansas

open access: yesGroundwater Monitoring &Remediation, EarlyView.
Abstract Groundwater in the upper Arkansas River corridor has been contaminated by elevated concentrations of dissolved solids in Arkansas River water. Most of the dissolved solids originate from the soils and bedrock in eastern Colorado, where river water is diverted for irrigation and storage systems, and evapotranspiration significantly increases ...
Gaisheng Liu   +5 more
wiley   +1 more source

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