Results 51 to 60 of about 34,551 (219)

Building an Acceleration Ladder with Tidal Streams and Pulsar Timing

open access: yesThe Astrophysical Journal Letters, 2023
We analyse stellar streams in action-angle coordinates combined with recent local direct acceleration measurements to provide joint constraints on the potential of our galaxy.
Peter Craig   +3 more
doaj   +1 more source

Enterprises Communication in e-Environment: Case Study of Latvia and Kazakhstan

open access: yesEconomics and Culture, 2018
The performed scientific studies show that proper and skilful use of modern technologies can contribute to significant development of companies. Growth of technologies occurs rapidly, and the electronic environment continuously develops and improves ...
Stige-Skuskovnika Vita   +3 more
doaj   +1 more source

Molecular Gas Properties in Young Stellar Clusters with a Suppressed Star Cluster Wind

open access: yesThe Astrophysical Journal Letters, 2023
In compact and dense star-forming clouds a global star cluster wind could be suppressed. In this case stellar feedback is unable to expel the leftover gas from the cluster. Young massive stars remain embedded in a dense residual gas and stir it by moving
Sergiy Silich   +3 more
doaj   +1 more source

Rejuvenated Accretors Have Less Bound Envelopes: Impact of Roche Lobe Overflow on Subsequent Common Envelope Events

open access: yesThe Astrophysical Journal Letters, 2023
Common envelope (CE) evolution is an outstanding open problem in stellar evolution, critical to the formation of compact binaries including gravitational-wave sources.
M. Renzo   +7 more
doaj   +1 more source

Vacuum Neutrino Oscillations of Solar Neutrinos and Lepton Mass Matrices [PDF]

open access: yes, 1998
We consider the case that the solar neutrino deficit is due to the vacuum oscillation. The lepton mass matrices with nearly bi-maximal mixings are needed in order to explain both solar and atmospheric neutrino deficit.
Tanimoto, Morimitsu
core   +4 more sources

Magnetar Central Engines in Gamma-Ray Bursts Follow the Universal Relation of Accreting Magnetic Stars

open access: yesThe Astrophysical Journal Letters, 2023
Gamma-ray bursts (GRBs), both long and short, are explosive events whose inner engine is generally expected to be a black hole or a highly magnetic neutron star (magnetar) accreting high-density matter.
Simone Dall’Osso   +4 more
doaj   +1 more source

Prenatal hyperandrogenism induces alterations that affect liver lipid metabolism [PDF]

open access: yes, 2016
Prenatal hyperandrogenism is hypothesized as one of the main factors contributing to26 the development of polycystic ovary syndrome (PCOS). PCOS patients have high risk27 of developing fatty liver and steatosis.
Abruzzese, Giselle Adriana   +6 more
core   +2 more sources

Discovery of the Closest Ultra-stripped Supernova: SN 2021agco in UGC 3855

open access: yesThe Astrophysical Journal Letters, 2023
We present the discovery and studies of the helium-rich, fast-evolving supernova (SN) 2021agco at a distance of ∼40 Mpc. Its early-time flux is found to rise from half peak to the peak of −16.06 ± 0.42 mag in the r band within ${2.4}_{-1.0}^{+1.5}$ days,
Shengyu Yan   +18 more
doaj   +1 more source

Sylos Labini e l’impresa pubblica (Paolo Sylos Labini and public enterprises)

open access: yesMoneta e Credito, 2016
L'articolo analizza il pensiero di Paolo Sylos Labini sulle imprese pubbliche e ricorda la storia della privatizzazione della holding pubblica italiana IRI ("Institute for Industrial Reconstruction").
Pierliuigi Ciocca
doaj   +1 more source

Due culture, due concezioni dell'impresa pubblica (Two Cultures, Two Ideas of Public Enterprises)

open access: yesMoneta e Credito, 2016
L'articolo analizza il pensiero di Paolo Sylos Labini sulle imprese pubbliche e ricorda la definizione di impresa pubblica come un mix di potere contrattuale e strumento di politica economica.
Salvatore Biasco
doaj   +1 more source

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