Results 81 to 90 of about 4,857,649 (284)

Purification and preparation of Marchantia polymorpha Auxin Response Factor 2 for phase separation studies

open access: yesFEBS Open Bio, EarlyView.
We describe detailed protocols for the purification and preparation of Marchantia polymorpha Auxin Response Factor 2 (MpARF2). This protein is fused to an MBP solubility tag and an mNG fluorescent tag and is purified from Escherichia coli. The presented procedures make it possible to study MpARF2 assemblies, which could arise from phase separation ...
Bas Janssen   +5 more
wiley   +1 more source

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

A direct A.C. to A.C. regenerative frequency and voltage converter [PDF]

open access: yes, 1980
Includes bibliographical references.The reliable variable speed operation of an a. c. machine over a wide speed range is a problem that has received attention for some time.
Case, Michael James
core   +1 more source

Design of bridgeless Cuk PFC converter based on one-cycle control

open access: yesDianzi Jishu Yingyong, 2019
For the power factor correction converter circuit structure contains low-frequency rectifier bridge causing the problem of low efficiency, Boost PFC converter can only boost the pressure but can not step down,the proposed bridgeless Cuk PFC converter can
Yu Zhong′an, Ge Tingyu, Liang Jianwei
doaj   +1 more source

Cost and losses associated with offshore wind farm collection networks which centralise the turbine power electronic converters [PDF]

open access: yes, 2013
Costs and losses have been calculated for several different network topologies, which centralise the turbine power electronic converters, in order to improve access for maintenance.
Anaya-Lara, Olimpo, Parker, Max
core   +1 more source

Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level

open access: yesAging and Cancer, EarlyView.
This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley   +1 more source

Organic laser power converter for efficient wireless micro power transfer. [PDF]

open access: yesNat Commun, 2023
Wang Y   +8 more
europepmc   +1 more source

Longitudinal Assessment of Biomarkers in ALS: Discriminative Biomarkers for Disease Progression and Survival

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To assess the association and discriminative performance of serum biomarkers with clinical disease progression and survival in patients with amyotrophic lateral sclerosis (ALS). Methods This retrospective study, conducted at Houston Methodist Hospital, Houston, TX, used longitudinal serum samples collected between January 2018 and ...
David R. Beers   +7 more
wiley   +1 more source

An approach of power loss measurement for converter station and its key equipment

open access: yesDiance yu yibiao
At present, the commonly used power loss calculation method for converter station is mainly based on an analysis and calculation method which needs a large number of system operation and equipment performance parameters, so it is cumbersome and ...
ZHENG Xin   +5 more
doaj   +1 more source

Power Converter Resonant Control for an Unbalanced and Non-Constant Frequency Supply. [PDF]

open access: yesSensors (Basel), 2023
Rohten J   +6 more
europepmc   +1 more source

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