Results 21 to 30 of about 2,001,528 (211)

Lack of correlation between constitutive and induced resistance to a herbivore in crucifer plants: real or flawed by experimental methods? [PDF]

open access: yes, 2009
The correlation between constitutive and induced resistance to herbivores in plants has long been of interest to evolutionary biologists, and various approaches to determining levels of resistance have been used in this field of research.
Dicke, M.   +4 more
core   +2 more sources

Time to task failure of the contralateral untrained limb after high load-low repetition eccentric and low load-high repetition resistance training

open access: yesMotriz: Revista de Educacao Fisica, 2017
Aims: Cross-training is the process whereby training of one limb gives rise to enhancements in the performance of the opposite, untrained limb and may be dependent on type of muscle contractions performed. The aim of this study was to investigate whether
Nosratollah Hedayatpour   +4 more
doaj   +1 more source

Drug resistance and treatment failure in leishmaniasis: A 21st century challenge [PDF]

open access: yes, 2017
Reevaluation of treatment guidelines for Old and New World leishmaniasis is urgently needed on a global basis because treatment failure is an increasing problem.
Alicia Ponte-Sucre   +8 more
core   +3 more sources

Fracture Resistance of Compromised Endodontically Treated Teeth Restored with Bonded Post and Cores: An in Vitro Study [PDF]

open access: yes, 2015
Statement of problem: It is unclear which post and core system performs best when bonded to severely compromised endodontically treated teeth. Purpose: The purpose of this study was to investigate the fracture resistance and mode of failure of severely ...
Kontogiorgos, Elias D.   +2 more
core   +2 more sources

Use of elastic stability analysis to explain the stress-dependent nature of soil strength [PDF]

open access: yes, 2015
The peak and critical state strengths of sands are linearly related to the stress level, just as the frictional resistance to sliding along an interface is related to the normal force. The analogy with frictional sliding has led to the use of a ‘friction
Hanley, KJ   +3 more
core   +3 more sources

Fire resistance of steel beam to square CFST column composite joints using RC slabs: Experiments and numerical studies [PDF]

open access: yes, 2019
In this paper, experimental investigation and numerical simulation of steel beam to square concrete-filled steel tube (CFST) column composite joints that use reinforced concrete (RC) slabs subjected to localized and global fire conditions are presented ...
Fu, F., Yang, Y-F.
core   +1 more source

The role of drug resistance in poor viral suppression in rural South Africa: findings from a population-based study. [PDF]

open access: yes, 2020
BACKGROUND:Understanding factors driving virological failure, including the contribution of HIV drug resistance mutations (DRM), is critical to ensuring HIV treatment remains effective.
Barnhart, Scott   +9 more
core  

Design of Cellular Members under Axial-Shear-Flexure Interaction [PDF]

open access: yesJournal of Applied and Computational Mechanics
Due to lack of a design resistance for cellular beam-columns under the axial-shear-flexure interaction, the design interaction resistances were investigated through a validated finite element analysis.
Pattamad Panedpojaman   +3 more
doaj   +1 more source

On the tear resistance of skin. [PDF]

open access: yes, 2015
Tear resistance is of vital importance in the various functions of skin, especially protection from predatorial attack. Here, we mechanistically quantify the extreme tear resistance of skin and identify the underlying structural features, which lead to ...
Gludovatz, Bernd   +6 more
core   +2 more sources

Failure Mechanism Study of Direct Action Solenoid Valve Based on Thermal-Structure Finite Element Model

open access: yesIEEE Access, 2020
Solenoid valves are important electromagnetic devices which are used widely in various fields. Considering the uncertainty of failure mechanisms in practical operation, a thermal-structure coupled model of a direct action solenoid valve is constructed by
Jianfeng Li   +5 more
doaj   +1 more source

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