Results 21 to 30 of about 2,341 (249)

A composite bow from Yaroslavl

open access: yes, 2021
В публикации рассматривается находка составного лука, обнаруженного в коллективном захоронении, которое относилось к эпохе монгольского нашествия. Данное погребение было совершено в колодце. Колодец был расположен вблизи от внешних укреплений средневекового Ярославля.
openaire   +1 more source

Milestones of dental history

open access: yesCHRISMED Journal of Health and Research, 2017
Since ages, human beings suffer from the dental problems. With the journey as time elapsed the person treating the teeth changed (i.e., from barbers and monks to present dentists), equipment changed (i.e., from bow drills to airotor and laser handpieces),
Rajesh Mahant   +3 more
doaj   +1 more source

The June 2012 North American Derecho: A Testbed for Evaluating Regional and Global Climate Modeling Systems at Cloud‐Resolving Scales

open access: yesJournal of Advances in Modeling Earth Systems, 2023
In this paper, we introduce a testbed for evaluating and comparing climate modeling systems at cloud resolving scales using hindcasts of the June 2012 North American derecho. To demonstrate its utility for model intercomparison, the testbed is applied to
W. Liu   +6 more
doaj   +1 more source

Repeated stage exposure reduces music performance anxiety

open access: yesFrontiers in Psychology, 2023
BackgroundHigh heart rate (HR) and restlessness are two important features of music performance anxiety (MPA). In a case report of a cellist suffering from this condition, we showed that HR and restlessness decreased after repeated live performances of ...
Victor Candia   +4 more
doaj   +1 more source

Seismic Behaviour of Hybrid Precast Shear Walls with Partially Connected Vertically Distributed Reinforcements

open access: yesAdvances in Civil Engineering, 2022
This paper presents a joint mode for a vertical grouting sleeve and a partially distributed reinforced composite connection. The seismic performance of four hybrids precast shear walls with a shear span ratio of 1.83, an axial compression ratio of 0.20 ...
Henglin Lv   +4 more
doaj   +1 more source

Expounding structures of roller compacted concrete dam specimens by means of hard conventional X-ray inspection

open access: yesHeliyon, 2019
A simple solution to improve the contrast between the different concrete composites in X-ray imaging (radiography and tomography) of a highly compressed composite sample of real size roller compacted concrete (RCC) specimens is presented. This is made by
W.C. Godoi   +8 more
doaj   +1 more source

Forecasting the Dialysis Burden in Japan: Validation‐Based Projections of Prevalence and Incidence Through 2050

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Japan has one of the highest dialysis prevalence rates worldwide and a shrinking, aging population. Whether dialysis burden has entered a sustained post‐peak phase or whether recent declines partly reflect pandemic‐related disruptions remains uncertain.
Hatice Şahin   +2 more
wiley   +1 more source

Effect of flake graphite content on wear between behavior between P/M copper-based pantograph slide and contact wire

open access: yesMaterials Research Express, 2020
In this work, chromium-containing copper matrix com0posites with different flake graphite content (1.8 wt%, 2 wt%, 2.5 wt%) were fabricated by inexpensive powder metallurgy method, and the mechanical properties, friction properties and microstructure of ...
Jianxiang Huang   +8 more
doaj   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

ABL kinase‐dependent phosphorylation of SH proteins promotes their direct interaction with CRK family SH2 domains

open access: yesFEBS Letters, EarlyView.
CT10 regulator of kinase (CRK) and CRK‐Like (CRKL) are signaling adaptors driving cell adhesion, motility, differentiation, and proliferation. SH2‐domain containing (SH) proteins are enriched in YXXP motifs which when phosphorylated create preferred binding sites for CRK family SH2 domains.
Phoebe M. Cousens   +8 more
wiley   +1 more source

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