Results 61 to 70 of about 1,193,818 (298)

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

FEBS 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, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

Analysis of Kinetic Properties and Tunnel-Coupled States in Asymmetrical Multilayer Semiconductor Structures

East European Journal of Physics
This study investigates the kinetic properties of both symmetrical and asymmetrical multilayer and nano-sized semiconductor structures. We develop a theoretical framework using various models and mathematical methods to solve the Schrödinger matrix ...
Rustam Y. Rasulov, Vokhob R. Rasulov, Kamolakhon K. Urinova, Islombek A. Muminov, Bakhodir B. Akhmedov   +4 more
doaj   +1 more source

New methodological approaches to the simultaneous measurement of the 90Sr and 137Cs activity in environmental samples [PDF]

Ядерна фізика та енергетика, 2012
Nonradiochemical method of measurement of 90Sr and137Cs activity in environmental samples is proposed. This method is based on spectrometrical investigation of electrons accompanied the decay of the 90Sr and137Cs.
M. V. Zheltonozhska, N. V. Kulich, A. I. Lypska, V. I. Nikolaev, M. V. Strilchuk   +4 more
doaj  

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Influence of 2 MeV electrons irradiation on gallium phosphide light-emitting diodes reverse currents

Ядерна фізика та енергетика, 2015
Results of reverse electrophysical characteristics study of red and green LEDs, initial and irradiated with 2 MeV electrons were given. It was found that reverse current was predominantly caused by carriers tunneling at Urev ≤ 9 V, and by the avalanche ...
V. G. Vorobiov, O. V. Konoreva, Ye. V. Malyi, M. B. Pinkovska, V. P. Tartachnyk, V. V. Shlapatska   +5 more
doaj  

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Superconductor-insulator transition in Coulomb disorder

, 2007
Superconductor-insulator transition driven by the decreasing concentration of electrons $n$ is studied in the case of the disorder potential created by randomly positioned charged impurities.
A. Leggett, A. M. Finkelshtein, B. I. Shklovskii, B. I. Shklovskii, B. I. Shklovskii, B. I. Shklovskii, B. I. Shklovskii, B. I. Shklovskii   +7 more
core   +1 more source

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

FEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas, Porter L. Tomsick, Alicia M. Pickrell, Paul D. Morton   +3 more
wiley   +1 more source

High resolution threshold photoelectron spectroscopy by electron attachment [PDF]

, 1979
A system is provided for determining the stable energy levels of a species ion, of an atomic, molecular, or radical type, by application of ionizing energy of a predetermined level, such as through photoionization.
Ajello, J. M., Chutjian, A.
core   +1 more source

Tunneling spectroscopy of Luttinger-liquid structures far from equilibrium

, 2009
We develop a theory of tunneling spectroscopy of interacting electrons in a non-equilibrium quantum wire coupled to reservoirs. The problem is modelled as an out-of-equilibrium Luttinger liquid with spatially dependent interaction.
Gefen, Yuval, Gutman, D. B., Mirlin, A. D.   +2 more
core   +1 more source