Results 21 to 30 of about 23,828 (200)
XMM-Newton observation of the Seyfert 1 ESO 198-G24 [PDF]
Astronomy & Astrophysics, 2004 We present the results from an XMM-Newton observation (January 24, 2001) of the bright Seyfert 1 galaxy ESO 198-G24 (z=0.045). We found that this Seyfert has an intrinsic 2-10 keV luminosity of about 10^44 erg s-1. This source shows no intrinsic absorption in addition to the Galactic absorption (N_{H}~3 x 10^20 cm-2).
Porquet, D. +5 more
openaire +4 more sources
Quantum phase transitions with Photons and Polaritons [PDF]
, 2007 We show that a system of polaritons - combined atom and photon excitations - in an array of coupled cavities, under an experimental set-up usually considered in electromagnetically induced transparency, is described by the Bose-Hubbard model.
Brandao, Fernando G. S. L. +2 more
core +2 more sources
Venture Capital and Private Equity Funds as Source of Financing Enterprises in Poland
Studia Ekonomiczne i Regionalne, 2020 Subject and purpose of work: The main issue of the work is to present the essence of venture capital, i.e. Venture Capital funds and Private Equity funds.
Janicka-Michalak Teresa
doaj +1 more source
A new rating of sustainability based on the Morningstar Sustainability Rating
European Research on Management and Business Economics, 2023 Nowadays, investors seek beyond the financial performance of their investments, including Environmental, Social, and Governance (ESG) criteria in the decision-making process. To this effect, there are currently suppliers who offer different methodologies
Maria-Teresa Sorrosal-Forradellas +3 more
doaj +1 more source
Plant-Environment Interactions, 2022 Cowpea is one of the most important grain legumes for human consumption and animal feeding. Despite this importance, its production is hampered by biotic and abiotic constraints.
Yirga Kindie +2 more
doaj +1 more source
Borsa Istanbul Review, 2022 We examine the effect of venture capital investments on health sector growth, using a macro sample data from EVCA (now Invest Europe), World Bank, OECD and Eurostat databases covering 23 EU/EEA countries between 2000 and 2019.
Fauna Atta Frimpong +2 more
doaj +1 more source
Infall of gas as the formation mechanism of stars up to 20 times more massive than the Sun [PDF]
, 2006 Theory predicts and observations confirm that low-mass stars (like the Sun) in their early life grow by accreting gas from the surrounding material.
C Codella +35 more
core +2 more sources
On the origin of the featureless soft X-ray excess emission from the Seyfert 1 galaxy ESO~198--G24 [PDF]
, 2013 We present medium and high resolution X-ray spectral study of a Seyfert 1 galaxy ESO~198--G24 using a long (122 ks) XMM-Newton observation performed in February 2006. The source has a prominent featureless soft X-ray excess below $2\kev$.
Dewangan, Gulab C. +2 more
core +1 more source
Identification of High-Yielding Genotypes of Barley in the Warm Regions of Iran
Plants, 2023 One of the most important effects of climatic changes is increasing temperatures and expanding water deficit stress in tropical and subtropical regions.
Alireza Pour-Aboughadareh +8 more
doaj +1 more source
Field Theoretic Branes and Tachyons of the QCD String [PDF]
, 1998 Dvali and Shifman have proposed a field-theoretic mechanism for localizing gauge fields to "branes" in higher dimensional spaces using confinement in a bulk gauge theory.
Carroll +4 more
core +4 more sources