Results 21 to 30 of about 3,550,619 (297)

Running Experiments on Amazon Mechanical Turk

open access: yesJudgment and Decision Making, 2010
Although Mechanical Turk has recently become popular among social scientists as a source of experimental data, doubts may linger about the quality of data provided by subjects recruited from online labor markets.
Gabriele Paolacci   +2 more
semanticscholar   +1 more source

Life’s Mechanism

open access: yesLife, 2023
The multifarious internal workings of organisms are difficult to reconcile with a single feature defining a state of ‘being alive’. Indeed, definitions of life rely on emergent properties (growth, capacity to evolve, agency) only symptomatic of intrinsic functioning. Empirical studies demonstrate that biomolecules including ratcheting/rotating enzymes,
openaire   +5 more sources

Structural, Mechanical, and Dielectric Properties of Polydimethylsiloxane and Silicone Elastomer for the Fabrication of Clinical-Grade Kidney Phantom

open access: yesApplied Sciences, 2021
This study aimed to introduce an alternative, inexpensive, and straightforward polymer with specific mechanical and dielectric properties suitable for the fabrication of a clinical-grade kidney phantom.
Kamal Izdihar   +5 more
doaj   +1 more source

Tendon mechanobiology in small-animal experiments during post-transection healing [PDF]

open access: yesEuropean Cells & Materials, 2021
Ruptures to tendons are common and costly, and no clinical consensus exists on the appropriate treatment and rehabilitation regimen to promote their healing as well as full recovery of functionality.
T Notermans   +3 more
doaj   +1 more source

Universal mechanical exfoliation of large-area 2D crystals [PDF]

open access: yesNature Communications, 2020
Two-dimensional materials provide extraordinary opportunities for exploring phenomena arising in atomically thin crystals. Beginning with the first isolation of graphene, mechanical exfoliation has been a key to provide high-quality two-dimensional ...
Yu’an Huang   +30 more
semanticscholar   +1 more source

Boron Monochalcogenides; Stable and Strong Two-Dimensional Wide Band-Gap Semiconductors

open access: yesEnergies, 2018
In this short communication, we conducted first-principles calculations to explore the stability of boron monochalcogenides (BX, X = S, Se or Te), as a new class of two-dimensional (2D) materials.
Bohayra Mortazavi, Timon Rabczuk
doaj   +1 more source

Significance of Intermittent Mixing in Mesophilic Anaerobic Digester

open access: yesFermentation, 2022
The mixing of slurry in an anaerobic digester (AD) is one of many key parameters, which have a significant effect on specific biogas yield (BY) and volatile solid (VS) removal rate.
Buta Singh   +6 more
doaj   +1 more source

2D MXenes: Tunable Mechanical and Tribological Properties

open access: yesAdvances in Materials, 2021
2D transition metal carbides, nitrides, and carbonitrides, known as MXenes, were discovered in 2011 and have grown to prominence in energy storage, catalysis, electromagnetic interference shielding, wireless communications, electronic, sensors, and ...
Brian C. Wyatt   +2 more
semanticscholar   +1 more source

Mechanism of Pain

open access: yesWorld Journal of Biological and Pharmaceutical Research, 2023
Word "pain" derives its origin from the Indo-European root aleg meaning to suffer. Word "pain" is later and comes from the Latin word "poena" meaning punishment. Since ancient times there has been disagreement regarding the perception of pain and its evaluation.
openaire   +2 more sources

Synthesis of nano-alumina and their effect on structure, mechanical and thermal properties of geopolymer

open access: yesJournal of Asian Ceramic Societies, 2019
This paper reports on a study of the effects of nano-alumina on the structural, mechanical and thermal properties of geopolymer matrices. Sample composites were produced by mixing metakaolin, an alkaline solution and nano-alumina (1%, 2% and 3%) with a ...
Z. Zidi   +3 more
doaj   +1 more source

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