Results 41 to 50 of about 3,604,186 (292)

A Black Start Scheme Based on Modular Multilevel Control-High Voltage Direct Current

Energies, 2018
Modern society’s need for power and its dependence on power sources is increasing with its development. As a result the consequences of blackout accidents have become more serious. At present, only three sources can be regarded as black-start power
Zecheng Li, Guojun Tan
doaj   +1 more source

Conformal hairy black holes of quartic quasi-topological gravity with power-Yang–Mills source

European Physical Journal C: Particles and Fields, 2023
We study higher dimensional hairy black holes of quartic quasi-topological gravity in the framework of non-abelian power-Yang–Mills theory. It is shown that real solutions of the gravitational field equations exist only for positive values of quartic ...
Askar Ali, Khalid Saifullah
doaj   +1 more source

Ricci flat rotating black branes with a conformally invariant Maxwell source

, 2010
We consider Einstein gravity coupled to an $U(1)$ gauge field for which the density is given by a power of the Maxwell Lagrangian. In $d$-dimensions the action of Maxwell field is shown to enjoy the conformal invariance if the power is chosen as $d/4 ...
A. Chamblin, A.M. Awad, A.M. Awad, A.M. Ghezelbash, A.N. Aliev, B.M.N. Carter, C.J. Hunter, D. Bailin, D. Birmingham, D. Horvat, D. Ida, D.R. Brill, E. Witten, G. Clement, G.W. Gibbons, G.W. Gibbons, H. Ishihara, H. R. Rastegar-Sedehi, J. Maldacena, J.D. Beckenstein, J.D. Brown, J.P.S. Lemos, M. Cvetic, M. Cvetic, M. Cvetic, M. Hassaine, M. Hassaine, M. Hennigson, M.H. Dehghani, M.H. Dehghani, M.H. Dehghani, M.H. Dehghani, M.H. Dehghani, M.H. Dehghani, M.H. Dehghani, M.M. Caldarelli, O. Aharony, P.G.O. Freund, P.V. Nieuwenhuizen, R.B. Mann, R.B. Mann, R.C. Myers, R.G. Cai, R.G. Cai, R.G. Cai, S. H. Hendi, S. Nojiri, S. Nojiri, S.W. Hawking, S.W. Hawking, S.W. Hawking, S.W. Hawking, S.W. Hawking, S.W. Hawking, T. Thiemann, V. Balasubramanian   +55 more
core   +1 more source

The high frequency power spectrum of Markarian 766 [PDF]

, 2003
An analysis is presented of the power spectrum of X-ray variability of the bright Seyfert 1 galaxy Mrk 766 as observed by XMM-Newton. Over the 0.2-10 keV energy range the power spectral density (PSD) is well-represented by a power-law with a slope of ...
A. C. Fabian, Belloni, Benlloch, Boller, Boller, Churazov, Edelson, Edelson, Edelson, Fabian, Frank, Green, Haardt, Herrero, Jansen, Lawrence, Lawrence, Lin, Markowitz, Mason, McHardy, Nandra, Nowak, Nowak, Papadakis, Papadakis, Papadakis, Papadakis, Pounds, Press, Rees, S. Vaughan, Strüder, Timmer, Turner, Uttley, van der Klis, van der Klis, van der Klis, Vaughan, Vaughan, Wandel, Wandel   +42 more
core   +3 more sources

Targeted modulation of IGFL2‐AS1 reveals its translational potential in cervical adenocarcinoma

Molecular Oncology, EarlyView.
Cervical adenocarcinoma patients face worse outcomes than squamous cell carcinoma counterparts despite similar treatment. The identification of IGFL2‐AS1's differential expression provides a molecular basis for distinguishing these histotypes, paving the way for personalized therapies and improved survival in vulnerable populations globally.
Ricardo Cesar Cintra, Lucca Paolo Hsu Helmich, Daniel Rodrigues de Bastos, Laura Sichero, Patrícia Savio de Araujo‐Souza, Fabio Passetti, Luisa Lina Villa   +6 more
wiley   +1 more source

Black theology in South Africa – A theology of human dignity and black identity

HTS Teologiese Studies/Theological Studies, 2016
Black theology in South Africa is still relevant 20 years after the apartheid regime ended. It is a theology that gave to Black South Africans human dignity and a black identity.
Timothy van Aarde
doaj   +1 more source

Chasing Stars: Racial Tasking of Recruiting Responsibilities among Power-5 Football Coaches

Journal of Intercollegiate Sport, 2023
During the 2022 National Collegiate Athletic Association (NCAA) college football season, eight of the 65 Power-5 head coaches were Black. The racial composition of assistant coaches, however, was nearly 50% Black and 50% White. While the head coach of a
Chris Corr, Trevor Bopp, Christopher Atwater, Calvin Nite   +3 more
doaj   +1 more source

Attempt to find a correlation between the spin of stellar-mass black hole candidates and the power of steady jets: relaxing the Kerr black hole hypothesis

, 2012
The rotational energy of a black hole can be extracted via the Blandford-Znajek mechanism and numerical simulations suggest a strong dependence of the power of the produced jet on the black hole spin.
Cosimo Bambi, I. D. Novikov, R. D. Blandford   +2 more
core   +1 more source

Pre‐analytical optimization of cell‐free DNA and extracellular vesicle‐derived DNA for mutation detection in liquid biopsies

Molecular Oncology, EarlyView.
Pre‐analytical handling critically determines liquid biopsy performance. This study defines practical best‐practice conditions for cell‐free DNA (cfDNA) and extracellular vesicle–derived DNA (evDNA), showing how processing time, storage conditions, tube type, and plasma input volume affect DNA integrity and mutation detection.
Jonas Dohmen, Lucrezia De Santis, Bret M. Stephens, Vincent Bernard, Jörg C. Kalff, Lara Braun, Phillipp Leyendecker, Johannes Röttgen, Daniel Weissinger, Anirban Maitra, Paola A. Guerrero, Alexander Semaan   +11 more
wiley   +1 more source

The Mass Distribution of Stellar-Mass Black Holes [PDF]

, 2010
We perform a Bayesian analysis of the mass distribution of stellar-mass black holes using the observed masses of 15 low-mass X-ray binary systems undergoing Roche lobe overflow and five high-mass, wind-fed X-ray binary systems.
Abadie, Andrew Cantrell, Bailyn, Cantrell, Casares, Charles D. Bailyn, Farr, Fragos, Fragos, Fryer, Fryer, Gelino, Gelino, Gelino, Gies, Greene, Harlaftis, Ilya Mandel, Kalogera, Khargharia, Laura Kreidberg, Niharika Sravan, Orosz, Orosz, Orosz, Orosz, Ozel, Prestwich, Raftery, Raftery, Silverman, Vicky Kalogera, Weinberg, Will M. Farr   +33 more
core   +2 more sources