Results 21 to 30 of about 8,389,681 (277)

Geometrical features of (4+d) gravity [PDF]

, 1998
We obtain the vacuum spherical symmetric solutions for the gravitational sector of a (4+d)-dimensional Kaluza-Klein theory. In the various regions of parameter space, the solutions can describe either naked singularities or black-holes or wormholes.
A. Davidson, A. G. Agnese, A. G. Agnese, A. G. Agnese, A. P. Billyard, D. Hochberg, D. J. Gross, E. Witten, J. M. Overduin, J. P. Baptista, M. La Camera, M. S. Morris, M. Tegmark, M. Visser, O. Klein, P. S. Wesson, T. Kaluza, W. Nahm   +17 more
core   +2 more sources

The effect of growth regulators on in vitro callus formation in cucumber and radish

Известия высших учебных заведений. Поволжский регион: Естественные науки, 2023
Background.Callus culture in vitro is a convenient model for studying physiological and biochemical manifestations at the cellular level, as well as for cell selection to stress factors.
Irina D. Mikhailova, Aleksandr S. Lukatkin   +1 more
doaj   +1 more source

Emergent universe in $$D \ge 4$$ D ≥ 4 dimensions with dynamical wormholes

European Physical Journal C: Particles and Fields, 2021
We present a flat emergent universe (EU) in Einstein gravity with non-linear equation of state (nEoS) in the usual four and in higher dimensions. The EU is assumed to evolve from an initial Einstein’s static universe (ESU) in the infinite past.
Bikash Chandra Paul
doaj   +1 more source

Plasma Cell-Free DNA in Patients with Diffuse Large B-Cell and B-Cell High-Grade (Double Hit/Triple Hit) Lymphomas

Клиническая онкогематология, 2023
Aim. To study plasma cell-free DNA (pcfDNA) concentration and B-cell clonality in patients with diffuse large B-cell (DLBCL) and B-cell high-grade lymphomas prior to and at different stages of chemotherapy as well as the correlation between the data ...
Svetlana Yurevna Smirnova, E. E. Nikulina, N. G. Gabeeva, D. A. Koroleva, S. A. Tatarnikova, A. K. Smol’yaninova, E. G. Gemdzhian, E. E. Zvonkov, A. B. Sudarikov   +8 more
doaj   +1 more source

New 4-D Imaging for Real-Time Intraoperative MRI: Adaptive 4-D Scan [PDF]

, 2006
Aiming at real-time 3-D visualization of organ motion to navigate surgical procedures in MRI-guided surgery, a new 4-D MR imaging technique called "Adaptive 4-D Scan" has been proposed. The technique is designed to acquire a time series of volumetric 3-D images (4-D image) of cyclically moving organ, even in a low-field open-configuration MR scanner. A
Junichi, Tokuda, Shigehiro, Morikawa, Hasnine A, Haque, Tetsuji, Tsukamoto, Kiyoshi, Matsumiya, Hongen, Liao, Ken, Masamune, Takeyoshi, Dohi   +7 more
openaire   +2 more sources

Blowup for Biharmonic NLS [PDF]

, 2015
We consider the Cauchy problem for the biharmonic (i.\,e.~fourth-order) NLS with focusing nonlinearity given by $i \partial_t u = \Delta^2 u - \mu \Delta u -|u|^{2 \sigma} u$ for $(t,x) \in [0,T) \times \mathbb{R}^d$, where $0 < \sigma 4/d$, we prove a ...
Boulenger, Thomas, Lenzmann, Enno
core   +2 more sources

Microsphere-assisted, nanospot, non-destructive metrology for semiconductor devices

Light: Science & Applications, 2022
As smaller structures are being increasingly adopted in the semiconductor industry, the performance of memory and logic devices is being continuously improved with innovative 3D integration schemes as well as shrinking and stacking strategies.
Soonyang Kwon, Jangryul Park, Kwangrak Kim, Yunje Cho, Myungjun Lee   +4 more
doaj   +1 more source

Supersymmetric Dyonic Black Holes in Kaluza-Klein Theory [PDF]

, 1994
We study supersymmetric, four-dimensional (4-d), Abelian charged black holes (BH's) arising in (4+n)-d (1 \le n \le 7) Kaluza-Klein (KK) theories. Such solutions, which satisfy supersymmetric Killing spinor equations (formally satisfied for any n) and ...
Abbott, Appelquist, Aragone, Arnowitt, Awada, Awada, Awada, Bardeen, Bekenstein, Bekenstein, Bekenstein, Bekenstein, Bekenstein, Berends, Bergshoeff, Bergshoeff, Bogomol'nyi, Chamseddine, Chapline, Cho, Cho, Cho, Cho, Cho, Choquet-Bruhat, Choquet-Bruhat, Cremmer, Cremmer, Cremmer, Cremmer, Curtright, Cvetič, Cvetič, Cvetič, Cvetič, Cvetič, Cvetič, Cvetič, Cvetič, D'Auria, Dobiasch, Donam Youm, Duff, Freund, Garfinkle, Gates, Gibbons, Gibbons, Gibbons, Gibbons, Gibbons, Gibbons, Gibbons, Gibbons, Gibbons, Gross, Günaydin, Günaydin, Hartle, Hawking, Hawking, Holzhey, Howe, Kallosh, Kallosh, Kaluza, Klein, Kugo, Mirjam Cvetič, Moss, Nahm, Nester, Nishino, Ortín, Parker, Pernici, Pollard, Preskil, Reula, Scherk, Sen, Shapere, Shoen, Shoen, Sorkin, Townsend, Visser, Wetterich, Wetterich, Witten   +89 more
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T-Helper Subpopulations in Acute Leukemia Patients After Allogeneic Hematopoietic Stem Cell Transplantation

Клиническая онкогематология, 2023
Aim. To identify the characteristics of T-helper subpopulations in healthy donors and to compare them with those reported in acute leukemia patients 6 months after allogeneic hematopoietic stem cell transplantation (allo-HSCT).
Yuliya Olegovna Davydova, N. M. Kapranov, K. A. Nikiforova, O. S. Karavaeva, D. V. Kamelskikh, M. Yu. Drokov, L. A. Kuzmina, T. V. Gaponova, I. V. Galtseva, E. N. Parovichnikova   +9 more
doaj   +1 more source

TIME-SYMMETRIC INITIAL DATA SETS IN 4--D DILATON GRAVITY [PDF]

, 1995
I study the time--symmetric initial--data problem in theories with a massless scalar field (dilaton), free or coupled to a Maxwell field in the stringy way, finding different initial--data sets describing an arbitrary number of black holes with arbitrary
A. Einstein, A. G. Agnese, A. Tomimatsu, A.G. Agnese, A.I. Janis, A.K.M. Masood ul Alam, C.P. Burgess, C.W. Misner, C.W. Misner, D. Garfinkle, D.R. Brill, D.R. Brill, G.W. Gibbons, G.W. Gibbons, G.W. Gibbons, J. Wojtkiewicz, L. Smarr, M. Heusler, M.W. Choptuik, P.R. Brady, R. Kallosh, R.M. Wald, R.W. Lindquist, Tomás Ortín, V. Husain, Y. Oshiro   +25 more
core   +3 more sources