Results 51 to 60 of about 270,750 (256)

Heterotropic regulation and negative homotropic cooperativity

open access: yesFEBS Open Bio, EarlyView.
We identified a structural module common to some proteins that couple negative cooperativity with heterotropic regulation, two features that rarely coexist. These proteins are ring‐like and present an ordered asymmetry whereby noncontacting subunits are symmetric, and their tertiary structure differs from that of contacting subunits.
Veronica Morea   +5 more
wiley   +1 more source

Comparative assessment of crystallographic and cryo‐EM models in the Protein Data Bank

open access: yesFEBS Open Bio, EarlyView.
Raw data obtained by X‐ray crystallography or cryo‐EM result in experimental maps, ultimately fitted by atomic models. Although the physical principles are different, the final results can be viewed, compared, and evaluated in the same way. With cryogenic electron microscopy (cryo‐EM) on track to surpass X‐ray crystallography as the preferred method ...
Alexander Wlodawer   +7 more
wiley   +1 more source

Waveform Agile Sensing Approach for Tracking Benchmark in the Presence of ECM using IMMPDAF [PDF]

open access: yesRadioengineering, 2017
This paper presents an efficient approach based on waveform agile sensing, to enhance the performance of benchmark target tracking in the presence of strong interference.
G. S. Satapathi, S. Pathipati
doaj  

Modeling of the output current of a photovoltaic grid-connected system using random forests technique

open access: yesEnergy Exploration & Exploitation, 2018
This study presents a prediction technique for the output current of a photovoltaic grid-connected system by using random forests technique. Experimental data of a photovoltaic grid-connected system are used to train and validate the proposed model ...
Ibrahim A Ibrahim   +3 more
doaj   +1 more source

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

open access: yesFEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey   +4 more
wiley   +1 more source

An effective parameter estimation on thermoelectric devices for power generation based on multiverse optimization algorithm

open access: yesResults in Engineering
This study explores using the Multiverse Optimization Algorithm to estimate the material properties of thermoelectric generators used for power generation. The modeling of these modules is complex due to nonlinear differential equations and the challenge
Luis Fernando Grisales-Noreña   +4 more
doaj   +1 more source

Comparison of Entropy Methods for an Optimal Rain Gauge Network: A Case Study of Daegu and Gyeongbuk Area in South Korea

open access: yesApplied Sciences, 2020
To reduce hydrological disasters, it is necessary to operate rain gauge stations at locations where the spatio-temporal characteristics of rainfall can be reflected.
Taeyong Kwon   +3 more
doaj   +1 more source

Rapid determination of tannin in Danshen and Guanxinning injections using UV spectrophotometry for quality control [PDF]

open access: yesJournal of Innovative Optical Health Sciences, 2018
A technique for the determination of tannin content in traditional Chinese medicine injections (TCMI) was developed based on ultraviolet (UV) spectroscopy.
Hongxia Huang   +5 more
doaj   +1 more source

A minimal cellulosome‐like system in Cellulosilyticum lentocellum

open access: yesFEBS Open Bio, EarlyView.
Cellulose‐degrading bacteria typically use cellulosomes, large multi‐enzyme complexes on a scaffold protein. In Cellulosilyticum lentocellum, we characterise a far smaller arrangement, a single scaffold bound to one cellulase through a single cohesin‐dockerin interaction.
John Allan   +2 more
wiley   +1 more source

Quantum root-mean-square error and measurement uncertainty relations

open access: yes, 2013
This second version has been substantially edited to ensure a balanced comparison of the two proposed quantum generalizations of the Gauss rms error concept.
Busch, Paul   +2 more
openaire   +2 more sources

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