Results 91 to 100 of about 2,704,038 (287)

Big bang nucleosynthesis as a probe of fundamental "constants"

, 2007
Big Bang nucleosynthesis (BBN) is the earliest sensitive probe of the values of many fundamental particle physics parameters. We have found the leading linear dependences of primordial abundances on all relevant parameters of the standard BBN code ...
Christof Wetterich, Dent T Stern S Wetterich C, Levshakov S A, Levshakov S A Centurion M Molaro P D'Odorico S, Murphy M T, Murphy M T Webb J K Flambaum V V, Murphy M T Webb J K Flambaum V V, Steffen Stern, Thomas Dent   +8 more
core   +1 more source

Fundamental stellar parameters

, 2004
I present a discussion of fundamental stellar parameters and their observational determination in the context of interferometric measurements with current and future optical/infrared interferometric facilities. Stellar parameters and the importance of their determination for stellar physics are discussed.
openaire   +2 more sources

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

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

Fundamental Geodetic Parameters 1999 [PDF]

Highlights of Astronomy, 2002
AbstractThe present (2000) set of primary “constants” and “current best estimates” is being reviewed. The emphasis within IUGG is on the consideration and numerical evaluation of temporal changes of relevant parameters. The accuracy of many parameters has been substantially improved, but many numerical values did not change significantly. Therefore, to
openaire   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

FEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura, Shin‐ichi Tate, Kyota Yasuda   +2 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

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

Fundamental stellar parameters of zeta Pup and gamma^2 Vel from HIPPARCOS data

, 1997
We report parallax measurements by the HIPPARCOS satellite of zeta Puppis and gamma^2 Velorum. The distance of zeta Pup is d=429 (+120/ -77) pc, in agreement with the commonly adopted value to Vela OB2.
Arenou F., Baade D., Bruhweiler F. C., Daniel Schaerer, Diehl R., Eenens P. R. J., Franco G. A. P., Hanbury Brown R., Howarth I. D., Howarth I. D., Koesterke L., Langer N., Lindegren L., Liseau R., Mathys G., Meynet G., Michel Grenon, Pauldrach A. W. A., Pike C. D., Schaerer D., Schaerer D., Schild H., Schmutz W., Schmutz W., Schmutz W., Smith L. F., Smith L. F., Stevens I. R., van der Hucht K., van Rensbergen W., Werner Schmutz   +30 more
core   +1 more source

Transcriptional network analysis of PTEN‐protein‐deficient prostate tumors reveals robust stromal reprogramming and signs of senescent paracrine communication

Molecular Oncology, EarlyView.
Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice, Jose I. Lopez, Aitziber Ugalde‐Olano, Maite Zufiaurre, Ianire Astobiza, Natalia Martin‐Martin, Laura Bozal‐Basterra, Saioa Garcia‐Longarte, Amaia Zabala‐Letona, Sofia Rey, Aida Santos‐Martin, Miguel Unda, Ana Loizaga‐Iriarte, Mariona Graupera, Paolo Nuciforo, Arkaitz Carracedo, Isabel Mendizabal   +16 more
wiley   +1 more source