Results 141 to 150 of about 51,001 (265)

Spectroscopic study of late-type emission-line stars using the data from LAMOST DR6

Low-mass emission-line stars belong to various evolutionary stages, from pre-main-sequence young stars to evolved stars. In this work, we present a catalog of late-type (F0 to M9) emission-line stars from the LAMOST Data Release 6.
Nidhi, S., Shridharan, B., Bhattacharyya, Suman, Edwin, D., Valsan, Vineeth, Robin, T., Mathew, Blesson, Kartha, Sreeja S.   +7 more
core  

Benchmark stars for mean stellar density and surface gravity estimates of solar-type stars

Adding an independent estimate of the mean stellar density, , as a constraint in the analysis of stars that host transiting exoplanets can significantly improve the precision of the planet radius estimate in cases where the light curve is too noisy to ...
Maxted, P F L
core   +1 more source

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

FEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj, Eline M. F. de Lange, Klaas A. Sjollema, Ben N. G. Giepmans   +3 more
wiley   +1 more source

Decoding environmental regimes and spring phytoplankton bloom occurrence in the central Yellow Sea. [PDF]

Sci Rep
Baek JY, Shin J, Yang HJ, Zhang Y, Hu C, Jo YH.   +5 more
europepmc   +1 more source

Mycobacterial cell division arrest and smooth‐to‐rough envelope transition using CRISPRi‐mediated genetic repression systems

FEBS Open Bio, EarlyView.
CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point, Wafaa Achache, Janïs Laudouze, Eliana Sepulveda Ramos, Mickaël Maziero, Céline Crauste, Stéphane Canaan, Pierre Santucci   +7 more
wiley   +1 more source

Depression as a prognostic factor for conversion from mild cognitive impairment to all-cause dementia and Alzheimer's disease: a systematic review and meta-analysis of longitudinal studies. [PDF]

Front Public Health
Kassymzhanova M, Shonbay K, Shikhova OM, Raspopova N, Karibayeva I.   +4 more
europepmc   +1 more source

Nuclear pore links Fob1‐dependent rDNA damage relocation to lifespan control

FEBS Open Bio, EarlyView.
Damaged rDNA accumulates at a specific perinuclear interface that couples nucleolar escape with nuclear envelope association. Nuclear pores at this site help inhibit Fob1‐induced rDNA instability. This spatial organization of damage handling supports a functional link between nuclear architecture, rDNA stability, and replicative lifespan in yeast.
Yamato Okada, Mina Iwaki, Kyosuke Hagiri, Rei Izumi, Masahiko Harata, Chihiro Horigome   +5 more
wiley   +1 more source

Carbon stars in populations of different metallicity

, 1998
Our current knowledge of carbon stars in the local group and beyond, is discussed. Although many carbon stars and late M-stars have been identified in external galaxies a coherent understanding in terms of the chemical evolution-and star formation rate ...
Groenewegen, M.A.T., Max-Planck-Institut fuer Astrophysik, Garching (Germany)   +1 more
core  

Upper Atmosphere Dynamics and Drivers of Volatiles Loss from Terrestrial-Type (Exo)Planets. [PDF]

Space Sci Rev
Kubyshkina D, Way MJ, Dandouras I, Lammer H, Lanza AF, Lingam M, Nakamura R, Persson M, Scherf M, Seki K.   +9 more
europepmc   +1 more source

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

FEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn, Barbara Seroka, Ryszard Lazny, Zenon Lotowski, Thore Rohwerder   +4 more
wiley   +1 more source