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441
مدل پیامدهای تحصیلی دانشآموزان دوره متوسطه با توجه به اثرات روابط معلم- شاگرد و معلم-والدین با نقش میانجی آگاهی فراشناختی...
Published 2023-03-01“…تعداد 392 نفر به همراه یکی از والدینشان به عنوان مشارکتکنندگان، پرسشنامههای ارتباط معلم- شاگرد (Murray & Zvoch, 2010)، ارتباط معلم- والدین (Vickers & Minke, 1995)، آگاهی فراشناختی (Schraw & Dennison, 1994)، سرزندگی تحصیلی (Dehghanizadeh & Chari, 2013)، خردهمقیاس یادگیری ادراکشده (Alavi, 1994 و Marks, 2000)، خردهمقیاس طرحریزی برای فارغالتحصیل شدن پرسشنامه ملی درگیری دانشآموزی (NSSE)، آمادگی برای ورود به دانشگاه خردهمقیاس دانشآموز (Sokol, 2000) و خردهمقیاس شادی و رفتار در کلاس پرسشنامه ارزیابی ملی پیشرفتتحصیلی (Blazar & Kraft, 2015) را تکمیل نمودند. تحلیل دادهها با روشهای آمار توصیفی و روش مدلیابی معادلات ساختاری با استفاده از نرمافزارهایSPSS22 و LISREL8.8 نشان داد که مدل پیشنهادی با دادههای پژوهش برازش مناسب دارد. …”
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442
The Power of (Near) Simultaneous Multi-Frequency Observations for mm-VLBI and Astrometry
Published 2017-01-01“…These shocks could be responsible for the γ-ray emission in blazar jets.…”
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443
Untangling Cosmic Magnetic Fields: Faraday Tomography at Metre Wavelengths with LOFAR
Published 2018-11-01“…Other detected source types include an FRI radio galaxy and at least eight blazars. Most sources display simple Faraday spectra, but we highlight one blazar that displays a complex Faraday spectrum, with two close peaks in the Faraday dispersion function.…”
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444
Constraining the PG 1553+113 Binary Hypothesis: Interpreting Hints of a New, 22 yr Period
Published 2024-01-01“…PG 1553+113 is a well-known blazar exhibiting evidence of a ∼2.2 yr quasiperiodic oscillation (QPO) in the radio, optical, X-ray, and γ -ray bands. …”
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445
Hadronic Processes at Work in 5BZB J0630−2406
Published 2023-01-01“…In this study, we focus on one object, 5BZB J0630−2406, which is among the blazars recently proposed as associated with neutrino emission during the first 7 yr of IceCube observations. …”
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446
Revisiting a Core–Jet Laboratory at High Redshift: Analysis of the Radio Jet in the Quasar PKS 2215+020 at <i>z</i> = 3.572
Published 2024-02-01“…These values qualify PKS 2215+020 as a blazar, with rather typical jet properties in a small sample of only about 20 objects at <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>z</mi><mo>></mo><mn>3.5</mn></mrow></semantics></math></inline-formula> that have similar measurements to date. …”
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447
CHANDRA AND HST IMAGING OF THE QUASARS PKS B0106+013 AND 3C 345: INVERSE COMPTON X-RAYS AND MAGNETIZED JETS
Published 2015“…We present results from deep (~70 ks) Chandra/ACIS observations and Hubble Space Telescope (HST) Advanced Camera for Surveys F475W observations of two highly optically polarized quasars belonging to the MOJAVE blazar sample, viz., PKS B0106+013 and 1641+399 (3C 345). …”
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448
Search for steady point-like sources in the astrophysical muon neutrino flux with 8 years of IceCube data
Published 2019“…The IceCube Collaboration has observed a highenergy astrophysical neutrino flux and recently found evidence for neutrino emission from the blazar TXS 0506+056. These results open a new window into the high-energy universe. …”
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449
Discovery of Hydrogen Radio Recombination Lines at z = 0.89 toward PKS 1830-211
Published 2023-01-01“…The RRL emission originates in a galaxy that intercepts and strongly lenses the radio blazar PKS 1830−211 ( z = 2.5). This is the second detection of RRLs outside of the local Universe and the first clearly associated with hydrogen. …”
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450
Polarization and Spectral Energy Distribution in OJ 287 during the 2016/17 Outbursts
Published 2017-11-01“…We report optical photometric and polarimetric observations of the blazar OJ 287 gathered during 2016/17. The high level of activity, noticed after the General Relativity Centenary flare, is argued to be part of the follow-up flares that exhibited high levels of polarization and originated in the primary black hole jet. …”
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451
RadioAstron Space VLBI Imaging of the Jet in M87. I. Detection of High Brightness Temperature at 22 GHz
Published 2023-01-01“…Therefore, this can be evidence for more extreme Doppler boosting due to a blazar-like small jet viewing angle or highly efficient particle acceleration processes occurring already at the base of the outflow.…”
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452
Search for steady point-like sources in the astrophysical muon neutrino flux with 8 years of IceCube data
Published 2021“…Abstract The IceCube Collaboration has observed a high-energy astrophysical neutrino flux and recently found evidence for neutrino emission from the blazar TXS 0506 $$+$$ + 056. …”
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453
Classification of unassociated fermi-LAT sources
Published 2022-01-01“…Among them, 271 have been associated to pulsars, 3436 to blazars, and 1782 remain unassociated sources. Unassociated sources are object for which there is not a clear counterpart in other wavelengths. …”
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454
X-Ray Polarization of BL Lacertae in Outburst
Published 2023-01-01“…Our contemporaneous X-ray data suggest that the IXPE energy band is at the crossover between the low- and high-frequency blazar emission humps. The source displays significant variability during the observation, and we measure polarization in three separate time bins. …”
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455
ВЕЙВЛЕТ–АНАЛИЗ АКТИВНОСТИ СИСТЕМЫ "ЯДРО-ДЖЕТ" КВАЗАРОВ И БЛАЗАРОВ В САНТИМЕТРОВОМ ДИАПАЗОНЕ
Published 2011-12-01“…Long monitoring of fluxes of a radio emission blazars on centimetric and millimetric waves to be carring out since 1965 on РТ-26 the Radioastronomical observatory of Michigan university (UMRAO) in the USA (4.8, 8 and 14.5 Ggts) and since 1980 on РТ-22 scientific research institute «Crimean astrophysical observatory» (22 and 36.8 Ggts). …”
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456
Photons to axion-like particles conversion in Active Galactic Nuclei
Published 2015-05-01“…We first remark that AGN which can be detected above 100 GeV are blazars, namely AGN with jets, with one of them pointing towards us. …”
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457
X-RAY EMISSION OF ICRF SOURCES
Published 2018-10-01“…Extragalactic frames of the ICRF system are mostly quasars , radio galaxies , blazars and Seyfert galaxies i.e. different types of the active galaxy nuclei (AGN) . …”
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458
The Radio/Gamma-Ray Connection from 120 MHz to 230 GHz
Published 2016-09-01“…Radio loud active galactic nuclei are composed of different spatial features, each one characterized by different spectral properties in the radio band. Among them, blazars are the most common class of sources detected at gamma-rays by Fermi, and their radio emission is dominated by the flat spectrum compact core. …”
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459
Czech Participation in INTEGRAL: 1996–2011
Published 2011-01-01“…The results of the first 8 years of investigations of various scientific targets are briefly presented and discussed here, with emphasis on cataclysmic variables and blazars with the ESA INTEGRAL satellite with Czech participation.…”
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460
Czech Participation in the INTEGRAL Satellite: A Review
Published 2011-01-01“…The results of the first 7 years of investigations of various scientific targets e.g. cataclysmic variables, blazars, X-ray sources, and GRBs with the ESA INTEGRAL satellite with Czech participation are briefly presented and discussed.…”
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