Results 81 to 90 of about 5,801,750 (300)

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

On the prime power factorization of n!

open access: yesJournal of Number Theory, 2003
In this paper we prove two results. The first theorem uses a paper of Kim \cite{K} to show that for fixed primes $p_1,...,p_k$, and for fixed integers $m_1,...,m_k$, with $p_i\not|m_i$, the numbers $(e_{p_1}(n),...,e_{p_k}(n))$ are uniformly distributed modulo $(m_1,...,m_k)$, where $e_p(n)$ is the order of the prime $p$ in the factorization of $n ...
Luca, Florian, Stănică, Pantelimon
openaire   +3 more sources

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Factorization of powers in C-monoids

open access: yesJournal of Algebra, 2006
For commutative, cancellative monoids \(H\) the authors consider the set of lengths of a given \(a\in H\) \[ L(a)=\{n\in\mathbb{N}\mid a\text{ has a factorization into \(n\) irreducible elements of }H\}. \] If \(L(a)\) is nonempty for every non-unit \(a\in H\), then \(H\) is called atomic. By a result of \textit{D. F. Anderson} and \textit{P.
Foroutan, Andreas, Hassler, Wolfgang
openaire   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Rectificador monofásico con corrección del factor de potencia usando un convertidor Boost

open access: yesTecnura, 2012
This paper shows a mathematical model and corresponding controller design of a 24W DC-DC Boost converter used for power factor correction. Modeling and simulations are shown (using Matlab) together with experimental results.
Lenny Andrés Hernández Fonseca   +2 more
doaj  

Thermoelectric characteristics of Co3(BO3)2 and NaF-substituted Bi2Sr2Co2Oy prepared via a sol-gel route

open access: yesJournal of Physics Communications
The discovery of thermoelectric cobaltites initiated a systematic exploration of these materials for potential applications in thermoelectric generators, which convert waste heat into electricity.
Nikoloz Margiani   +6 more
doaj   +1 more source

Large enhancement of the thermoelectric power factor in disordered materials through resonant scattering

open access: yes, 2019
In the search for more efficient thermoelectric materials, scientists have placed high hopes in the possibility of enhancing the power factor using resonant states.
Adessi, Christophe   +2 more
core   +3 more sources

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

open access: yesFEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai   +9 more
wiley   +1 more source

Five-phase travelling wave induction heater for continuous heating of flat material

open access: yesThe Journal of Engineering, 2016
This study proposed a novel travelling wave induction heating system with five-phase exciting current. The proposed system used special exciting current to obtain a homogeneous eddy current density, which affects the temperature pattern over the material
Ali K. Al-Shaikhli   +2 more
doaj   +1 more source

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