Results 111 to 120 of about 10,661,924 (343)

The damping system for floating caisson of С-1 navigation pass of St.-Petersburg flood protection barrier [PDF]

open access: yesИнженерно-строительный журнал, 2012
Floating caisson of navigation pass C-1 is designed for shutdown in case of threat of flooding the main ship canal in St.-Petersburg flood protection barrier.
A.S. Bolshev   +3 more
doaj  

EFFECTIVENESS OF UTILIZING STICKER ON READING RESISTOR COLOR CODE AT SMP NEGERI 15 YOGYAKARTA [PDF]

open access: yes, 2013
Research objective is to determine the difference between the learning outcomes of students who utilize stickers and who doesn’t utilize stickers with magnetic board to help read resistor color code, and also determine the effectiveness of utilizing the ...
Rezky, Ariananda
core  

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy   +4 more
wiley   +1 more source

Experimental Aerodynamic Characteristics of a Joined-wing Research Aircraft Configuration [PDF]

open access: yes
A wind-tunnel test was conducted at Ames Research Center to measure the aerodynamic characteristics of a joined-wing research aircraft (JWRA). This aircraft was designed to utilize the fuselage and engines of the existing NASA AD-1 aircraft. The JWRA was
Smith, Stephen C., Stonum, Ronald K.
core   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

A Conceptual Framework for Religiousity Survey in Iran [PDF]

open access: yesIslām va ̒ulūm-i ijtimā̒ī
In analyzing the complex issue of religion, social science researchers require an operational definition aside from the logical and conceptual definitions of religion and religiousity.
Mohammad Reza Taleban
doaj  

Research and Application of a Proppant Transport Experimental Device for Complex Fractures in the Unconventional Reservoir [PDF]

open access: bronze, 2022
Huan Peng   +8 more
openalex   +1 more source

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

SOME APPROACHES TO THE EXPERIMENTAL METHOD IN THE SCIENTIFIC ECONOMIC RESEARCH [PDF]

open access: yes
Used on a wide scale in the natural sciences, the experimental method was accepted and used in the research field of the economic sciences much later and with a lot of restraint.
Camelia Dragomir STEFANESCU
core  

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