Results 61 to 70 of about 34,122 (236)

Cherenkov Telescope Array Observatory: Die Zukunft der Gammaastronomie

Physik in unserer Zeit, EarlyView.
Im Jahr 1989 hat das Wipple‐Observatorium die erste Quelle hochenergetischer Gammastrahlung entdeckt. 2002 waren dann sechs Quellen bekannt, 2024 schon mehr als 300. Und das ist immer noch lediglich die Spitze des Eisbergs in der jungen Geschichte der Gammaastronomie.
Daniela Hadasch, Daniel Mazin
wiley   +1 more source

Powers and Magnetization of Blazar Jets

Galaxies, 2016
In this work I review the observational constraints imposed on the energetics and magnetisation of quasar jets, in the context of theoretical expectations.
Marek Sikora
doaj   +1 more source

Incidence of MgII absorbers towards Blazars and the GRB/QSO puzzle

, 2010
In order to investigate the origin of the excess of strong MgII systems towards GRB afterglows as compared to QSO sightlines, we have measured the incidence of MgII absorbers towards a third class of objects: the Blazars.
Abdo, Angel, B. Ménard, Bartelmann, Becker, Bergeron, Bergeron, Bergeron, Blades, Choi, Cohen, Collinge, Conselice, Drinkwater, Ellison, Elvis, Falle, Fan, Fan, Fragile, Frank, Gehrels, Giovannini, Hall, Hao, Heidt, Impey, Impey, J. Bergeron, Jannuzi, Kaiser, Kanekar, Komissarov, Londish, Londish, Mellema, Mukherjee, Ménard, Ménard, Narayan, Nestor, P. Boissé, Padovani, Padovani, Pian, Piner, Piner, Plotkin, Pontzen, Porciani, Prochter, Prochter, Rao, Rao, Rector, Sbarufatti, Sbarufatti, Scranton, Smith, Steidel, Steidel, Steidel, Stickel, Stocke, Sudilovsky, Sudilovsky, Tavecchio, Tejos, Tejos, Vergani, Wild, Wolfe, Young   +72 more
core   +2 more sources

Regulatory T Cells and Nanomaterials: Dual Perspectives in Therapeutics and Immunomodulation

Small Science, EarlyView.
Tregs control immune tolerance but can also enable tumor escape. Nanomaterials can now expand or stabilize Tregs to treat autoimmunity and support transplantation or conversely disrupt tumor Tregs to boost antitumor immunity. We also discuss unintended Treg modulation by nanoparticles, safety and manufacturing challenges, and future translational ...
Yiyin Chen, Haibo Huang, Xiang Wang, Xinghao Yu, Ziyan Huang, Zhou Jin, Chen Chen, Yan Chen, Bruce R. Blazar, Yang Xu, Yunjie Lu   +10 more
wiley   +1 more source

Characterising the Long-Term Variability of Blazars in Leptonic Models

Galaxies, 2019
Most research on blazar variability focuses on individual flares to explain acceleration and radiation mechanisms and improve on current models. These short-time events (being minutes, hours, or days) might not be representative of the underlying ...
Hannes Thiersen, Michael Zacharias, Markus Böttcher   +2 more
doaj   +1 more source

Optical Intraday Variability Studies of Ten Low Energy Peaked Blazars

, 2011
We have carried out optical (R band) intraday variability (IDV) monitoring of a sample of ten bright low energy peaked blazars (LBLs). Forty photometric observations, of an average of ~ 4 hours each, were made between 2008 September and 2009 June using ...
Abraham, Aller, Alok C. Gupta, Angione, Bindu Rani, Blandford, Blandford, Böttcher, Böttcher, Camenzind, Carswell, Chakrabarti, Ciprini, Ciprini, Clements, Cohen, Corso, Corso, Dai, Dai, de Diego, Edelson, Efimov, Elvis, Emmanoulopoulos, Falomo, Fan, Fan, Fan, Fan, Fan, Fan, Fiorucci, Foschini, Fossati, Ghisellini, Ghisellini, Ghosh, Ghosh, Gopal-Krishna, Gu, Gupta, Gupta, Gupta, Gupta, Gupta, Gupta, Hamuy, Heidt, Hovatta, Hufnagel, Hughes, Impey, Krawczynski, Lanzetta, Lichti, Liller, Lu, Mangalam, Marscher, Marscher, Marscher, Massaro, Mead, Miller, Moles, Montagni, Nieppola, Nieppola, Nilsson, Nilsson, Ostorero, Paul J. Wiita, Pollock, Qian, Raiteri, Raiteri, Raiteri, Raiteri, Raiteri, Raiteri, Rani, Rani, Rani, Rickett, Romero, S. Ganesh, Sbarufatti, Schmidt, Shen, Sikora, Sillanpää, Sillanpää, Sillanpää, Sillanpää, Simonetti, Sitko, Sitko, Smith, Smith, Spinrad, Stetson, Stetson, Striani, Takalo, Takalo, Takalo, Takalo, Takalo, Teräsranta, Tommasi, U. C. Joshi, Urry, Valtaoja, Valtaoja, Valtaoja, Valtonen, Villata, Villata, Villata, Villata, Villata, Villata, Wagner, Wagner, Webb, Webb, Webb, Wills, Wu, Xie, Xie, Xie, Xie, Xie, Zhang   +135 more
core   +1 more source

Collagen organisation in the fibrous joint capsules in the digits of the human hand

Journal of Anatomy, EarlyView.
The function of the finger joints is important for daily life. In this review of the literature, we consider the role of collagen and its organization within the fibrous finger joint capsules of the interphalangeal (IP) joints and investigate the relationships between collagen orientation and joint function. Abstract Normal function of the hand and, in
Fiona R. Saunders, Ronald G. Coutts, Richard M. Aspden, Flora Gröning   +3 more
wiley   +1 more source

Testing the Blazar Sequence with Spectra of Recently Discovered Dim Blazars from the Fermi Unassociated Catalog

The Astrophysical Journal, 2023
Recent works have developed samples of blazars from among the Fermi Large Area Telescope unassociated sources via machine-learning comparisons with known blazar samples. Continued analysis of these new blazars tests the predictions of the blazar sequence
Stephen Kerby, Abraham D. Falcone
doaj   +1 more source

On the Nature of MeV Blazars

The Astrophysical Journal, 2002
Accepted for publication in the Astrophysical ...
Sikora, Marek, Blazejowski, Michal, Moderski, Rafal, Madejski, Greg   +3 more
openaire   +2 more sources

Increasing Latinx migratory high school students' engineering interest and self‐efficacy beliefs: A culturally responsive gamified engineering design activity

Journal of Engineering Education, Volume 115, Issue 1, January 2026.
Abstract Background The ongoing underrepresentation of Latinx students, particularly girls, in engineering calls for new approaches to broaden participation. The present study aims to address this disparity by implementing a culturally responsive gamified engineering activity for migratory high school students, an often‐overlooked subset of Latinx ...
Dina Verdín, Timothy Wells, Ulises Trujillo Garcia   +2 more
wiley   +1 more source