Results 41 to 50 of about 1,653,589 (294)

Detailed Investigation of a W UMa Contact Binary with an Ultralow Mass Ratio and a Third Body as a Potential Merger Candidate

The Astrophysical Journal
The lower limit of the mass ratio in contact binaries remains uncertain, with observations suggesting systems exist below theoretical predictions. The stability of such very-low-mass-ratio systems is still debated.
Atila Poro, Ehsan Paki, Fahri Alicavus, Raul Michel   +3 more
doaj   +1 more source

Gravitational Waves from Black Hole Emission

Universe
Using adiabatic point-particle black hole perturbation theory, we simulate plausible gravitational wave (GW) signatures in two exotic scenarios (i) where a small black hole is emitted by a larger one (‘black hole emission’) and (ii) where a small black ...
Tousif Islam, Gaurav Khanna, Steven L. Liebling   +2 more
doaj   +1 more source

A type system for certified binaries [PDF]

ACM SIGPLAN Notices, 2002
A certified binary is a value together with a proof that the value satisfies a given specification. Existing compilers that generate certified code have focused on simple memory and control-flow safety rather than more advanced properties.
Zhong Shao 0001, Valery Trifonov, Bratin Saha, Nikolaos Papaspyrou   +3 more
openaire   +1 more source

Clinical and Biological Features of Response in Resistant Neuroblastoma to 131I‐Metaiodobenzylguanidine Radiotherapy in the Anti‐GD2 Immunotherapy Era

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background 131I‐metaiodobenzylguanidine (131I‐MIBG) radiotherapy is a key treatment for relapsed and refractory (R/R) neuroblastoma (NB). Patients with R/R disease treated in the modern era are increasingly exposed to anti‐GD2 immunotherapy, which exerts selective pressure and may modify both tumor cell state and microenvironment.
Benjamin J. Lerman, Katherine K. Matthay, Fabienne Hollinger, Catriona Black, Ann A. Lazar, Miguel Pampaloni, Steven G. DuBois, Kieuhoa T. Vo   +7 more
wiley   +1 more source

Representation of reaction abilities for Al-Ti binary melts based on the atom-molecule coexistence theory

工程科学学报, 2016
A thermodynamic model is proposed for calculating the mass action concentration of structural units in the Al-Ti binary melt system based on the atom-molecule coexistence theory.
DUAN Sheng-chao, CHEN Hu-bing, GUO Han-jie, LIAN Yun-fei   +3 more
doaj   +1 more source

Shaping Planetary Nebulae with Jets and the Grazing Envelope Evolution

Galaxies, 2020
I argue that the high percentage of planetary nebulae (PNe) that are shaped by jets show that main sequence stars in binary systems can accrete mass at a high rate from an accretion disk and launch jets.
Noam Soker
doaj   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

FEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Unusually Wide Binaries: Are They Wide or Unusual? [PDF]

, 2009
We describe an astrometric and spectroscopic campaign to confirm the youth and association of a complete sample of candidate wide companions in Taurus and Upper Sco.
Adam L. Kraus, Adams, Ahmic, Ardila, Artigau, Baraffe, Boden, Bouy, Briceno, Burgasser, Cameron, Cameron, Carpenter, Chabrier, Close, Close, de Zeeuw, Dhital, Duchene, Duquennoy, Durisen, Epchtein, Furlan, Ghez, Hartigan, Hillenbrand, Hillenbrand, Itoh, Kraus, Kraus, Kraus, Kraus, Kraus, Kunkel, Köhler, Leggett, Leinert, Luhman, Luhman, Luhman, Luhman, Luhman, Luhman, Luhman, Luhman, Luhman, Lynne A. Hillenbrand, Martín, Martín, Massarotti, Metchev, Monet, Padgett, Patience, Peebles, Prato, Prato, Prato, Preibisch, Preibisch, Preibisch, Radigan, Reid, Reipurth, Salim, Scalo, Schaefer, Schlegel, Scholz, Simon, Simon, Sirianni, Skrutskie, Slesnick, Slesnick, Slesnick, Stapelfeldt, Steffen, Torres, White, White, White, Wing, Zuckerman   +83 more
core   +2 more sources

Ultra-short Period Binaries from the Catalina Surveys [PDF]

, 2014
We investigate the properties of 367 ultra-short period binary candidates selected from 31,000 sources recently identified from Catalina Surveys data. Based on light curve morphology, along with WISE, SDSS and GALEX multi-colour photometry, we identify ...
Abraham, S., Catelan, M., Christensen, E., Djorgovski, S. G., Donalek, C., Drake, A. J., Garcia-Alvarez, D., Graham, M. J., Larson, S., Mahabal, A. A., Prieto, J. L., Torrealba, G., Williams, R.   +12 more
core   +2 more sources