Results 81 to 90 of about 2,666,833 (318)

Environmental dependence of stellar velocity dispersion in the Main galaxy sample of SDSS DR10

Open Physics, 2014
The aim of this work is to examine the environmental dependence of stellar velocity dispersion in local galaxies. In studies that likely suffer from the radial selection effect, one has a preference for the use of volumelimited samples.
Deng Xin-Fa
doaj   +1 more source

The Caenorhabditis elegans DPF‐3 and human DPP4 have tripeptidyl peptidase activity

FEBS Letters, EarlyView.
The dipeptidyl peptidase IV (DPPIV) family comprises serine proteases classically defined by their ability to remove dipeptides from the N‐termini of substrates, a feature that gave the family its name. Here, we report the discovery of a previously unrecognized tripeptidyl peptidase activity in DPPIV family members from two different species.
Aditya Trivedi, Rajani Kanth Gudipati
wiley   +1 more source

The Fundamental Stellar Parameters of FGK Stars in the SEEDS Survey

, 2017
Large exoplanet surveys have successfully detected thousands of exoplanets to-date. Utilizing these detections and non-detections to constrain our understanding of the formation and evolution of planetary systems also requires a detailed understanding of
Abe, Lyu, Akiyama, Eiji, Brandner, Wolfgang, Brandt, Timothy D., Cargile, Phillip, Carson, Joseph C., Currie, Thayne M, Egner, Sebastian, Feldt, Markus, Fukagawa, Misato, Goto, Miwa, Grady, Carol A., Guyon, Olivier, Hashimoto, Jun, Hayano, Yutaka, Hayashi, Masahiko, Hayashi, Saeko S., Hebb, Leslie, Helminiak, Krzysztof G., Henning, Thomas, Hodapp, Klaus W., Ishii, Miki, Iye, Masanori, Janson, Markus, Kandori, Ryo, Knapp, Gillian R., Kudo, Tomoyuki, Kusakabe, Nobuhiko, Kuzuhara, Masayuki, Kwon, Jungmi, Matsuo, Taro, Mayama, Satoshi, McElwain, Michael W., Miyama, Shoken, Momose, Munetake, Morino, Jun-Ichi, Moro-Martin, Amaya, Nakagawa, Takao, Nishimura, Tetsuo, Oh, Daehyeon, Okamoto, Yoshiko K., Pyo, Tae-Soo, Rich, Evan A., Schlieder, Joshua, Serabyn, Eugene, Sitko, Michael L., Suenaga, Takuya, Suto, Hiroshi, Suzuki, Ryuji, Takahashi, Yasuhiro H., Takami, Hideki, Takami, Michihiro, Takato, Naruhisa, Tamura, Motohide, Terada, Hiroshi, Thalmann, Christian, Tomono, Daigo, Turner, Edwin L., Usuda, Tomonori, Watanabe, Makoto, Wisniewski, John P., Yamada, Toru   +61 more
core   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Estimation of Physical Stellar Parameters from Spectral Models Using Deep Learning Techniques

Mathematics
This article presents a new algorithm that uses techniques from the field of artificial intelligence to automatically estimate the physical parameters of massive stars from a grid of stellar spectral models.
Esteban Olivares, Michel Curé, Ignacio Araya, Ernesto Fabregas, Catalina Arcos, Natalia Machuca, Gonzalo Farias   +6 more
doaj   +1 more source

Spectral Analysis Via the Virtual Observatory: The Service Theossa

Open Astronomy, 2012
In the framework of the Virtual Observatory, the newly developed service TheoSSA provides access to theoretical stellar spectral energy distributions. In a pilot phase, this service is based on the well-established Tübingen NLTE Model-Atmosphere Package ...
Ringat E., Rauch T., Werner K.
doaj   +1 more source

The evolutionary state and fundamental parameters of metallic A-F giants [PDF]

, 1998
Using Hipparcos parallaxes, we show that the metallic A-F giants found by Hauck (1986) on the basis of their high Delta m_2 index in Geneva photometry are on average more evolved than their non-metallic counterparts.
Erspamer, D., Kuenzli, M., North, P.
core   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

FEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang, Grace Du, Charity Yongo‐Luwawa, Angelina Lu, Brett Kinrade, Kim Munro, Karl E. Klose, William D. Lubell, Peter Davies, Shuaiqi Guo   +9 more
wiley   +1 more source

Wide Field Multicolor CCD Photometry of the Open Cluster NGC752

Open Astronomy, 2010
The results of CCD photometry in the seven-color Vilnius system of 3058 stars down to V ~ 18.0 mag in a 1.5 square degree field around the cluster NGC 752 are presented.
Zdanavičius J., Bartašiutė S., Zdanavičius K.   +2 more
doaj   +1 more source

S-PLUS: LEnticular Galaxies in Stripe 82 (LEGS82) [PDF]

Anais da Academia Brasileira de Ciências
This work is a Brazilian-Indian collaboration. It aims at investigating the structural properties of Lenticular galaxies in the Stripe 82 using a combination of S-PLUS (Southern Photometric Local Universe Survey) and SDSS data.
ARIANNA CORTESI, KANAK SAHA, FABRICIO FERRARI, GEFERSON LUCATELLI, CLAUDIA M. DE OLIVEIRA, SURAJ DHIWAR, CLECIO R. BOM, LUCIANA OLIVIA DIAS   +7 more
doaj   +2 more sources