Results 31 to 40 of about 861,339 (283)

Hybrid and modular multilevel converter designs for isolated HVDC–DC converters [PDF]

open access: yes, 2018
Efficient medium and high-voltage dc-dc conversion is critical for future dc grids. This paper proposes a hybrid multilevel dc-ac converter structure that is used as the kernel of dc-dc conversion systems.
Adam, G.P.   +4 more
core   +1 more source

An intracellular transporter mitigates the CO2‐induced decline in iron content in Arabidopsis shoots

open access: yesFEBS Letters, EarlyView.
This study identifies a gene encoding a transmembrane protein, MIC, which contributes to the reduction of shoot Fe content observed in plants under elevated CO2. MIC is a putative Fe transporter localized to the Golgi and endosomal compartments. Its post‐translational regulation in roots may represent a potential target for improving plant nutrition ...
Timothy Mozzanino   +7 more
wiley   +1 more source

Efficient LDO-Assisted DC/DC buck converter for integrated power management system [PDF]

open access: yes, 2016
DC-DC Switching Converters; Voltage Linear Regulators; Linear-Assisted DC-DC Voltage Regulators.Postprint (published ...
Martínez García, Herminio
core  

DC fault isolation study of bidirectional dual active bridge DC/DC converter for DC transmission grid application [PDF]

open access: yes, 2015
Fast isolation and detection of DC faults is currently a limiting factor in high power DC transmission grid development. Recent research has shown that the role of DC/DC converters is becoming increasingly important in solving various DC grid challenges ...
Aboushady, Ahmed A.   +2 more
core   +2 more sources

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

ICTERÍCIA NEONATAL: QUANDO DEVEMOS PENSAR EM ESFEROCITOSE?

open access: yesHematology, Transfusion and Cell Therapy
Introdução: A estrutura da membrana eritrocitária é dividida em interações verticais, que são responsáveis pela estabilidade da bicamada de lipídeos, e interações horizontais que conferem a integridade das estruturas da membrana. Na esferocitose há lesão
LG Oliveira, DC Barros
doaj   +1 more source

Association of Hypertension Mortality Rates with Geographic Concentrations of Chiropractors and Medical Doctors in the U.S., 2008

open access: yesDose-Response, 2013
As concentration (dose) of health care providers increases, health outcomes (responses) are expected to be favorable (e.g., decrease in mortality rates). Accordingly, this data-driven, ecological study compares hypertension mortality rates in the U.S. by
John Hart DC, MHSc
doaj   +1 more source

Honeybees and caterpillars: epidemiology of accidents involving these animals in the Criciúma region, southern Santa Catarina State, Brazil

open access: yesJournal of Venomous Animals and Toxins including Tropical Diseases, 2008
The present study aimed to acquire knowledge regarding some aspects of the epidemiology and injuries provoked by honeybees and caterpillars in southern Santa Catarina State, Brazil.
MP Cristiano, DC Cardoso
doaj   +1 more source

Inductor losses estimation in DC-DC converters by means of averaging technique [PDF]

open access: yes, 2015
A suitable inductor modeling for power electronic DC-DC converters is presented in this paper. It is developed with the aim of improving inductor losses estimation achievable by averaged models, which inherently neglect inductor current ripple.
GATTO, GIANLUCA   +4 more
core   +1 more source

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

open access: yesFEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani   +4 more
wiley   +1 more source

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