Results 71 to 80 of about 1,830,967 (340)

A Density Functional Theory Study of Raman Modes of Hydrogenated Cadmium Sulphide Nanoparticles

Nanomaterials and Nanotechnology, 2012
Raman scattering investigations based on density functional theory (DFT) calculations were performed to explore the vibrational modes of wurtzite structured CdS nanoparticles (NPs).
Abdul Majid, Raees Ahmad, Azeem Nabi, Abdul Shakoor, Najmul Hassan   +4 more
doaj   +1 more source

Temperature dependence of the surface plasmon resonance in small electron gas fragments, self consistent field approximation

, 2017
The temperature dependence of the surface plasmon resonance in small metal spheres is calculated using an electron gas model within the Random Phase Approximation. The calculation is mainly devoted to the study of spheres with diameters up to at least 10
Fasolato, Claudia, Petrillo, Caterina, Sacchetti, Francesco, Tozzi, Pietro   +3 more
core   +1 more source

The apo LETM1 F‐EF‐hand adopts a closed conformation that underlies a multi‐modal sensory role in mitochondria

FEBS Letters, Volume 599, Issue 7, Page 971-988, April 2025.
We present the first solution structure of the Ca2+‐depleted LETM1 F‐EF‐hand through a D676A/N678A Ca2+ binding‐deficient mutant, revealing a closed hydrophobic cleft caused by a unique F1‐helix pivot. The apo LETM1 F‐EF‐hand exhibits regiospecific hot and cold unfolding, sensitivity to physiological pH changes and potential for promiscuous heterotypic
Qi‐Tong Lin, Danielle M. Colussi, Peter B. Stathopulos   +2 more
wiley   +1 more source

Defect Modes Generated in a Stack of Spin-Coated Chiral Liquid Crystal Layers

Crystals
Nematic chiral liquid crystals (CLCs) are characterized by a helical arrangement of nematic LC molecules. A layer of CLC typically exhibits an optical reflection band due to Bragg reflection in the helical structure.
Frederik Van Acker, Bo-Han Lin, Chun-Ta Wang, Kristiaan Neyts, Jeroen Beeckman   +4 more
doaj   +1 more source

Emission Characteristics of Lasing From all Organic Mirrorless Quasicrystal

IEEE Photonics Journal, 2016
We demonstrate the emission characteristics, including polarization property and temperature effect, of lasing from all organic mirrorless quasicrystal fabricated by seven-beam interference.
Zongdai Liu, Dan Luo, Qingguo Du, Yong Li, Haitao Dai   +4 more
doaj   +1 more source

Absorption Properties of Polyvinyl Alcohol Films Filled with Nanoparticles Doped with Acridine Orange Dye

Al-Mustansiriyah Journal of Science, 2022
Polyvinyl Alcohol (PVA) polymer/ Acridine Orange (AO) dye films prepared via casting technique at room temperature. The effect of adding (Acridine Orange (AO) dye solution, Magnesium Oxide (MgO), and Aluminum Oxide (Al2O3) NPs) to the PVA polymer matrix ...
Fairooz Faeq Kareem, Mahasin F. Hadi, Asrar Abdulmunem Saeed   +2 more
doaj   +1 more source

Water Maser Emission from the Active Nucleus in M51 [PDF]

, 2001
22 GHz water vapor `kilomaser' emission is reported from the central region of the Whirlpool galaxy M 51 (NGC 5194). The red-shifted spectral features (Vlsr ~ 560 km/s), flaring during most of the year 2000, originate from a spatially unresolved maser spot of size < 30 mas (< 1.5 pc), displaced by < 250 mas from the nucleus.
arxiv   +1 more source

The Bimodal Galaxy Stellar Mass Function in the COSMOS Survey to z~1: A Steep Faint End and a New Galaxy Dichotomy [PDF]

, 2009
We present a new analysis of stellar mass functions (MF) in the COSMOS field to fainter limits than has been previously probed to z~1. Neither the total nor the passive or star-forming MF can be well fit with a single Schechter function once one probes ...
A. Leauthaud, Bell, Bell, Bell, Bell, Benson, Blanton, Bolzonella, Bouwens, Brinchmann, Bruzual, Bundy, Bundy, Bundy, C. J. Willott, Calzetti, Capak, Carlberg, Cen, Cen, Chapman, Cohen, Cole, Conroy, Conroy, Conselice, D. B. Sanders, D. Thompson, Daddi, Davé, Dickinson, Driver, Drory, Drory, Drory, Drory, Drory, Dunkley, Faber, Fontana, Grebel, H. J. McCracken, Haines, Hopkins, Hopkins, Ilbert, Ilbert, J. P. Kneib, J. S. Kartaltepe, K. Bundy, Kannappan, Kannappan, Kauffmann, Leauthaud, Lilly, Lilly, M. Salvato, Maraston, Marchesini, Mayer, McCracken, McGaugh, McGaugh, Moster, N. Drory, N. Scoville, O. Ilbert, P. Capak, Pannella, Pannella, Polletta, Pozzetti, Pérez-González, Pérez-González, Rees, Robertson, Robin, Rudnick, Rudnick, Springel, Stark, Stewart, Tully, Tully, White, Williams, Yan, Zehavi   +87 more
core   +3 more sources

Insertion of the FeB cofactor in cNORs lacking metal inserting chaperones

FEBS Letters, Volume 599, Issue 9, Page 1269-1284, May 2025.
Nitric oxide reductase is an enzyme found in the bacterial denitrification pathway. The NOR active site contains a non‐heme iron, often, but not always inserted with the assistance of chaperones. Here, we study the insertion of FeB in the subfamily of cNORs lacking chaperones and found a putative channel, conserved in the family, perhaps enabling the ...
Sofia Appelgren, Pia Ädelroth
wiley   +1 more source

Halogen Bonding and CO-Ligand Blue-Shift in Hybrid Organic—Organometallic Cocrystals [CpFe(CO)₂X] (C₂I₄) (X = Cl, Br)

Crystals, 2022
This work is focused on the complex interplay of geometry of I⋯X halogen bonds (HaB) and intermolecular interaction energy in two isomorphic cocrystals [CpFe(CO)2X] (C2I4) (X = Cl (1), Br (2)).
Yury Torubaev, Ivan Skabitskiy, Sergey Shapovalov, Olga Tikhonova, Anna Popova   +4 more
doaj   +1 more source