Results 61 to 70 of about 3,564,866 (292)

Natural Fibers Density Measurement Methods: Factors Affecting Density Result in Helium Gas Pycnometry

Journal of Natural Fibers
Fiber density can be used to estimate composite weight and to evaluate fiber content for property predictions in fiber-reinforced composites. Yet, natural fibers don’t have fixed density value given on datasheet and their density measurement is affected ...
Abebayehu Abdela, Mieraf Asfaw, Bart Buffel, Belete Sirahbizu, Frederik Desplentere   +4 more
doaj   +1 more source

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

FEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

Structure of the first order Reduced Density Matrix in three electron systems: A Generalized Pauli Constraints assisted study

, 2018
We investigate the structure of the one-body Reduced Density Matrix (1RDM) of three electron systems, i.e. doublet and quadruplet spin configurations, corresponding to the smallest interacting system with an open-shell ground state.
Helbig, Nicole, Lathiotakis, Nektarios, Theophilou, Iris   +2 more
core   +1 more source

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

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Testing one-body density functionals on a solvable model

, 2012
There are several physically motivated density matrix functionals in the literature, built from the knowledge of the natural orbitals and the occupation numbers of the one-body reduced density matrix. With the help of the equivalent phase-space formalism,
A.I. Solomon, A.J. Coleman, A.M.K. Müller, C. Amovilli, C. L. Benavides-Riveros, C.A. Coulson, C.L. Benavides-Riveros, D.A. Mazziotti, E. Lieb, G. Csányi, H.G. Laguna, I. Nagy, I. Nagy, I. Nagy, J. C. Várilly, J.P. Dahl, K. Ebrahimi-Fard, M. Moshinsky, M. Piris, M. Srednicki, M.A. Buijse, N.H. March, N.N. Lathiotakis, N.N. Lathiotakis, O. Gritsenko, P.-F. Loos, P.-O. Löwdin, P.A. Bouvrie, Ph. Blanchard, R.J. Yáñez, R.L. Frank, S. Goedecker, S. Sharma, W. Heisenberg, W. Kutzelnigg   +34 more
core   +1 more source

Natural New Inflation in Broken Supergravity [PDF]

, 1996
We consider a natural new inflationary model in broken supergravity based on an R symmetry. The model predicts a concrete relation between the amplitude of primordial density fluctuations and the scale of supersymmetry breaking. The observed value of the
Banks, Basu, Bennett, Bunn, Coughlan, de Carlos, Fukugita, Fukugita, Gell-Mann, Hotta, Izawa, Izawa, K.-I. Izawa, Kolb, Kumekawa, Liddle, Liddle, Liddle, Linde, Linde, Maiani, Nelson, Nilles, Primack, T. Yanagida, Veltman, Vilenkin, Weinberg, White, White, Yanagida   +30 more
core   +2 more sources

Radical scavenging activity of some natural tropolones by density functional theory

Bulletin of the Chemical Society of Ethiopia, 2017
The ground state neutral geometries of some natural tropolones, i.e. stipitatonic acid (AF1), stipitalide (AF2), stipitaldehydic acid (AF3) and methyl stipitate (AF4) have been optimized by using Density Functional Theory (DFT) at B3LYP/6-31G*, B3LYP/6 ...
A. G. Al-Sehemi, A. Irfan, A. al Fahad, M. Alfaifi   +3 more
doaj   +1 more source

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

Quantum Monte Carlo calculations of the one-body density matrix and excitation energies of silicon

, 1998
Quantum Monte Carlo (QMC) techniques are used to calculate the one-body density matrix and excitation energies for the valence electrons of bulk silicon.
A. J. Williamson, A. J. Williamson, A. Luchow, A. Szabo, A. Williamson, B. L. Hammond, C. Filippi, C. Greef, C. J. Umrigar, C.-J. Huang, D. Ceperley, D. M. Ceperley, G. P. Kerker, G. Rajagopal, G. Rajagopal, H. Eckstein, J. C. Grossman, J. R. Chelikowsky, L. Adamowicz, L. Mitáš, L. Mitáš, M. Caffarel, M. D. Towler, M. M. Morrell, M. Rohlfing, O. W. Day, O. W. Day, O. W. Day, P. H. Acioli, P. Löwdin, P. Löwdin, P. Löwdin, P. O. Löwdin, P. R. C. Kent, R. C. Morrison, R. J. Needs, R. McWeeny, R. P. Feynman, R. Q. Hood, Randolph Q. Hood, S. Fahy, S. Fahy, S. Tanaka, T. Kato, T. Koopmans, W. L. McMillan, W. Meyer, W. von der Linden, X. P. Li   +48 more
core   +1 more source