Results 41 to 50 of about 999,597 (267)

Intermediate Resolution Near-Infrared Spectroscopy of 36 late-M Dwarfs

, 2012
We present observations of 36 late-M dwarfs obtained with the KeckII/NIRSPEC in the J-band at a resolution of \sim20,000. We have measured projected rotational velocities, absolute radial velocities, and pseudo-equivalent widths of atomic lines.
Allen, Anglada-Escudé, Basri, Basri, Bean, Burrows, C. del Burgo, Caballero, Claret, Close, Cruz, Cruz, Cruz, Cushing, Delfosse, E. L. Martín, F. Rodler, Gizis, Gizis, Gray, H. Bouy, Hauschildt, Henry, Jenkins, Konopacky, Kupka, M. M. Montgomery, M. R. Zapatero Osorio, Marcy, Martin, McLean, Mohanty, N. Phan Bao, Pavlenko, Pravdo, R. Deshpande, R. Tata, Reid, Reid, Reiners, Reiners, Reiners, Rice, Rivera, Schmidt, Tody, Tody, West, West, White, Y. Lyubchik, Y. Pavlenko, Zapatero Osorio, Zapatero Osorio, Zapatero Osorio   +54 more
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Simple spectroscope used with solid state image amplifier over wide spectral range [PDF]

, 1971
Prism plus image amplifier panel provides visual image of many infrared spectral lines from carbon arc impregnated with metal compound. Different metal compounds generate various desired spectra.
Brown, R. L., Sr.
core   +1 more source

Radial dependence of line profile variability in seven O9--B0.5 stars

, 2014
Massive stars show a variety of spectral variability: presence of discrete absorption components in UV P-Cygni profiles, optical line profile variability, X-ray variability, radial velocity modulations.
Bouret, J. -C., Donati, J. -F., Hillier, D. J., Marcolino, W., Martins, F.   +4 more
core   +5 more sources

A spectral line survey of Orion KL in the bands 486-492 and 541-577 GHz with the Odin satellite I. The observational data [PDF]

, 2007
Spectral line surveys are useful since they allow identification of new molecules and new lines in uniformly calibrated data sets. Nonetheless, large portions of the sub-millimetre spectral regime remain unexplored due to severe absorptions by H2O and O2
A. Lecacheux, A. Nummelin, A. O. H. Olofsson, Aa. Sandqvist, Amano, B. Larsson, Beuther, Beuther, Blake, C. M. Persson, Cernicharo, Civis, Comito, E. S. Wirström, Frisk, Genzel, Goldsmith, Goldsmith, J. H. Black, Lee, M. Olberg, McCarthy, Melnick, Müller, N. Koning, Olofsson, Olofsson, P. Bergman, P. F. Bernath, Pagani, Pardo, Pardo, Persson, Pickett, Rodríguez-Franco, S. Kwok, Saito, Schilke, Schilke, Sempere, Senekowitsch, Siringo, T. I. Hasegawa, Takano, Turner, Turner, U. Frisk, Ungerechts, W. Geppert, White, Wirström, Wright, Yamamura, Zuckerman, Å. Hjalmarson   +54 more
core   +2 more sources

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Stark broadening of B IV spectral lines

, 2016
Stark broadening parameters for 157 multiplets of helium like boron (B IV) have been calculated using the impact semiclassical perturbation formalism. Obtained results have been used to investigate the regularities within spectral series.
Andjelka Kovačević, Boiko, Cunha, Dimitrijevic, Dimitrijević, Dimitrijević, Dimitrijević, Doyle, Dufour, Duncan, Iglesias, Kernahan, Kolk, Kramida, Källne, Lanz, Magdalena Christova, McKenzie, Milan S. Dimitrijević, Milovanović, Nicolosi, Popović, Popović, Proffitt, Sahal-Bréchot, Sahal-Bréchot, Sahal-Bréchot, Sahal-Bréchot, Sahal-Bréchot, Sahal-Bréchot, Sahal-Bréchot, Simić, Simić, Sylvie Sahal-Bréchot, Thomas, Van Regemorter, Vangioni-Flam, Vangioni-Flam, Wang, Zoran Simić   +39 more
core   +2 more sources

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Absorption coefficients, frequency shifts and absorption cross sections measurements versus pressure at room temperature, for hydro-chlorofluorocarbon HCFC-141b using a tunable CW CO2 laser

Results in Optics, 2023
Infrared (IR) absorption in the spectral ranges of 10P (934.92-952.89 cm−1), 10R (969.15-982.13 cm−1), 9P (1037.43-055.62cm−1) and 9R (1071.88-084.62 cm−1) in Freon of HCFC-141b (CH3CCl2F) was studied by measuring the laser output power at each emitted ...
Sh. Al-Hawat, Y. Balloul
doaj   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source