Results 101 to 110 of about 2,259,814 (348)

Period-doubling events in the light curve of R Cygni: evidence for chaotic behaviour

, 2002
A detailed analysis of the century long visual light curve of the long-period Mira star R Cygni is presented and discussed. The data were collected from the publicly available databases of the AFOEV, the BAAVSS and the VSOLJ.
Akima, Broomhead, Buchler, Buchler, Cadmus, Canizzo, Choi, Eddington, Fraser, Goupil, Grassberger, Gál, Hegger, Icke, Isles, Jorissen, K. Szatmáry, Kennel, Koen, Koen, Koen, Kolláth, Kolláth, L. L. Kiss, Lebzelter, Lloyd, Mennessier, Percy, Saitou, Sano, Serre, Serre, Seya, Sterken, Sterne, Szatmáry, Vauclair, Wallerstein, Wood   +38 more
core   +1 more source

First robotic monitoring of a lensed quasar: intrinsic variability of SBS 0909+532 [PDF]

, 2007
To go into the details about the variability of the double quasar SBS 0909+532, we designed a monitoring programme with the 2 m Liverpool Robotic Telescope in the r Sloan filter, spanning 1.5 years from 2005 January to 2006 June.
A. Ullán, A.P. Zheleznyak, Aretxaga, Balbus, Beskin, Burud, Chartas, Cid Fernandes, Collier, de Vries, E. Koptelova, Edelson, Gaskell, Gil-Merino, Gil-Merino, Giveon, Goicoechea, Hawkins, Kawaguchi, Kerins, Kochanek, Kochanek, Koptelova, Krolik, Kundić, L.J. Goicoechea, Lehár, Lehár, Lubin, Manmoto, Mediavilla, Mineshige, Negoro, Ofek, Oknyanskij, Oscoz, Oscoz, Page, Paraficz, R. Gil-Merino, Refsdal, Schmidt, Serra-Ricart, Shakura, Shakura, Simonetti, Steele, Ullán, Uttley, V.N. Shalyapin, Vanden Berk, Wambsganss   +51 more
core   +1 more source

Escape from TGF‐β‐induced senescence promotes aggressive hallmarks in epithelial hepatocellular carcinoma cells

Molecular Oncology, EarlyView.
Chronic TGF‐β exposure drives epithelial HCC cells from a senescent state to a TGF‐β resistant mesenchymal phenotype. This transition is characterized by the loss of Smad3‐mediated signaling, escape from senescence, enhanced invasiveness and metastatic potential, and upregulation of key resistance modulators such as MARK1 and GRM8, ultimately promoting
Minenur Kalyoncu, Dilara Demirci, Sude Eris, Bengisu Dayanc, Ece Cakiroglu, Merve Basol, Merve Uysal, Gulcin Cakan‐Akdogan, Fang Liu, Mehmet Ozturk, Gökhan Karakülah, Serif Senturk   +11 more
wiley   +1 more source

Photometrical observations and shape modeling of space debris in medium Earth orbits

Solar-Terrestrial Physics
The circular medium Earth orbits with a period of about half a day in the inclination range from 50° to 70° are used by various global navigation satellite systems (GNSS), such as GLONASS, GPS, Beidou, Galileo.
Korobtsev I. V., Mishina M. N., Karavaev Y. S., Eselevich M. V., Goryashin V. E.   +4 more
doaj   +1 more source

Light Curve Variations of AR Lacertae [PDF]

Journal of Astronomy and Space Sciences, 1991
Sixteen unitary Light curves of AR Lac in B and V are made at Yonsei University Observatory in the period of 1980-1988. Some overview findings of light variations are made.
Il-Seong Nha
doaj  

LIGHT CURVE TYPES OF CLASSIC T TAURI STARS

Odessa Astronomical Publications, 2016
By using the archive photometric data’s obtained for a long time intervals we have carried out a master light curves of 28 classical T Tauri type stars. For the physical character of variability mainly 5 type light curves can be separated.
N. Z. Ismailov, H. N. Adygezalzade
doaj   +1 more source

Targeting the AKT/mTOR pathway attenuates the metastatic potential of colorectal carcinoma circulating tumor cells in a murine xenotransplantation model

Molecular Oncology, EarlyView.
Dual targeting of AKT and mTOR using MK2206 and RAD001 reduces tumor burden in an intracardiac colon cancer circulating tumor cell xenotransplantation model. Analysis of AKT isoform‐specific knockdowns in CTC‐MCC‐41 reveals differentially regulated proteins and phospho‐proteins by liquid chromatography coupled mass spectrometry. Circulating tumor cells
Daniel J. Smit, Thais Pereira‐Veiga, Helena Brauer, Michael Horn, Paula Nissen, Thomas Mair, Bente Siebels, Hannah Voß, Ruimeng Zhuang, Marie‐Therese Haider, Desiree Loreth, Margarita Iskhakova, Bele Lindemann, Julian Kött, Laure Cayrefourcq, Jasmin Wellbrock, Hartmut Schlüter, Klaus Pantel, Catherine Alix‐Panabières, Manfred Jücker   +19 more
wiley   +1 more source

The optical light curve of GRB 970228 refined

, 1997
We present the R and V light curves of the optical counterpart of GRB 970228. A critical analysis of all the available data is made in light of the results achieved in the recent GRB Symposium held in Huntsville and by considering the latest information ...
A. Guarnieri, A. Piccioni, Bartolini, C. Bartolini, Fox, Fruchter, Fruchter, Galama, Groot, Guarnieri, Margon, Metzger, N. Masetti, Pedichini, Sahu, van Paradijs   +15 more
core   +2 more sources

Evidence for the disintegration of KIC 12557548 b [PDF]

, 2012
Context. The Kepler object KIC 12557548 b is peculiar. It exhibits transit-like features every 15.7 hours that vary in depth between 0.2% and 1.2%. Rappaport et al.
C. U. Keller, Claret, Draine, Gelman, Hastings, Henyey, I. A. G. Snellen, Lamers, M. A. Kenworthy, M. Brogi, M. de Juan Ovelar, M. Min, R. J. de Kok, Rappaport   +13 more
core   +3 more sources

Chemoresistome mapping in individual breast cancer patients unravels diversity in dynamic transcriptional adaptation

Molecular Oncology, EarlyView.
This study used longitudinal transcriptomics and gene‐pattern classification to uncover patient‐specific mechanisms of chemotherapy resistance in breast cancer. Findings reveal preexisting drug‐tolerant states in primary tumors and diverse gene rewiring patterns across patients, converging on a few dysregulated functional modules. Despite receiving the
Maya Dadiani, Gilgi Friedlander, Gili Perry, Nora Balint‐Lahat, Shlomit Gilad, Dana Morzaev‐Sulzbach, Anjana Shenoy, Noa Bossel Ben‐Moshe, Anya Pavlovsky, Rinat Bernstein‐Molho, Eytan Domany, Iris Barshack, Tamar Geiger, Bella Kaufman, Einav Nili Gal‐Yam   +14 more
wiley   +1 more source