Results 41 to 50 of about 711,454 (295)

Response of a phage modification factor to enhanced production of its target molecule [PDF]

open access: yesJournal of Virology, 1985
Escherichia coli cells with plasmids bearing the valS gene were constructed from the Clark-Carbon collection. Their increased valyl-tRNA synthetase (EC 6.1.1.9) activity was not matched by commensurate production of a modifying peptide during T4 infection.
N J, Olson, G L, Marchin
openaire   +2 more sources

The Response Modification Factor for Seismic Design of Integral Abutment Bridges

open access: yesJournal of Civil Engineering and Construction, 2021
The response modification factor (R factor) is a crucial parameter for calculating the design seismic forces applied to a bridge structure. This factor considers the nonlinear performance of bridges during strong ground motions. Conventional bridge structures rely on the substructure components to resist earthquake forces.
Shervin Maleki, Alireza Siadat
openaire   +2 more sources

Force Reduction Factor R for Shear Dominated Low-Rise Brick Masonry Structures [PDF]

open access: yesNumerical Methods in Civil Engineering, 2018
This paper presents investigation carried out, including experimental and numerical studies, on low-rise shear-dominated brick masonry structures for the calculation of force reduction factor R.
N. Ahmad, Q. Ali, M. Javed
doaj   +1 more source

Factors responsible for biomaterials modification in the electron-beam plasma

open access: yesJournal of Physics: Conference Series, 2007
The modification of some biomaterials by the Electron-Beam Plasma was studied experimentally. The powder of the fibrin-monomer (the natural protein which is contained in the blood of mammalians) was treated in the plasma generated by injecting the continuous electron beam in gaseous or vapor media.
T Vasilieva, S Lysenko
openaire   +1 more source

The Effect of Easy-Going Steel on KBF's Seismic Behavior [PDF]

open access: yesCivil Engineering Infrastructures Journal, 2013
The knee bracing steel frame (KBF) is a new type of energy dissipating frame which enjoys exceptional ductility and lateral stiffness. Rather than the beam-column joint, one end of the diagonal brace in KBF is attached to the knee element.
Mussa Mahmoudi   +2 more
doaj   +1 more source

A role for SUMO modification in transcriptional repression and activation [PDF]

open access: yes, 2007
Since the discovery of the SUMO (small ubiquitin-related modifier) family of proteins just over a decade ago, a plethora of substrates have been uncovered including many regulators of transcription.
Lyst, M J, Stancheva, I
core   +1 more source

Response Modification Factor of High-Strength Steel Frames with D-Eccentric Brace Using the IDA Method

open access: yesBuildings
The design innovation of high-strength steel frames paired with D-eccentric bracing exhibits remarkable resistance to plastic deformation during seismic events.
Yan Ma, Jun Yang, Xiaotong Ma
doaj   +1 more source

Evaluating Equivalent Damping and Response Modification Factors of Frames Equipped by Pall Friction Dampers [PDF]

open access: yesJournal of Rehabilitation in Civil Engineering, 2013
A study on the evaluating equivalent damping and response modification factors of frames equipped by Pall Friction Dampers is presented. To do so, buildings with various stories were considered. Nonlinear and linear dynamic time history analysis has been
M. Mahmoudi, A. Mirzaei, S. Vosough
doaj   +1 more source

Ductility Evaluation of inverted V-bracing and concentrically bracing systems [PDF]

open access: yesJournal of Structural and Construction Engineering, 2019
The current design philosophy for buildings located in zones with high seismic risks is that the buildings must have sufficient strength and stiffness to remain elastic and serviceable under moderate but frequently occurring earthquakes and to have ...
Abazar Asghari
doaj   +1 more source

Clinical and Biological Features of Response in Resistant Neuroblastoma to 131I‐Metaiodobenzylguanidine Radiotherapy in the Anti‐GD2 Immunotherapy Era

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background 131I‐metaiodobenzylguanidine (131I‐MIBG) radiotherapy is a key treatment for relapsed and refractory (R/R) neuroblastoma (NB). Patients with R/R disease treated in the modern era are increasingly exposed to anti‐GD2 immunotherapy, which exerts selective pressure and may modify both tumor cell state and microenvironment.
Benjamin J. Lerman   +7 more
wiley   +1 more source

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