Results 91 to 100 of about 1,879,895 (298)

4,4′,6,6′-Tetra-tert-butyl-2,2′-[1,2-phenylenebis(nitrilomethylidyne)]diphenol acetone solvate

Acta Crystallographica Section E, 2008
In the Schiff base molecule of the title compound, C36H48N2O2·C3H6O, the central benzene ring makes dihedral angles of 46.64 (10) and 49.34 (10)° with the two outer benzene rings, and the two outer benzene rings form an angle of 39 ...
Rohana Adnan, Hoong-Kun Fun, Suchada Chantrapromma, Siang Guan Teoh, Naser Eltaher Eltayeb   +4 more
doaj   +1 more source

Observation of interacting Josephson vortex chains by magnetic force microscopy

Physical Review Research, 2020
The ability to control Josephson vortices is instrumental for development of superconducting cryoelectronics. However, direct visualization of multivortex states in Josephson junctions is a challenging task.
Sergey Yu. Grebenchuk, Razmik A. Hovhannisyan, Viacheslav V. Dremov, Andrey G. Shishkin, Vladimir I. Chichkov, Alexander A. Golubov, Dimitri Roditchev, Vladimir M. Krasnov, Vasily S. Stolyarov   +8 more
doaj   +1 more source

Rings with divisibility on ascending chains of ideals

International Electronic Journal of Algebra
According to Dastanpour and Ghorbani, a ring $R$ is said to satisfy divisibility on ascending chains of right ideals ($A C C_{d}$) if, for every ascending chain of right ideals $I_{1} \subseteq I_{2} \subseteq I_{3} \subseteq I_{4} \subseteq \ldots $ of $R$, there exists an integer $k \in \mathbb{N}$ such that for each $i \geq k$, there exists an ...
SAFI, Oussama Aymane Es, MAHDOU, Najib, YOUSIF, Mohamed   +2 more
openaire   +3 more sources

The ubiquitin system in normal and infected germinal center B cells

FEBS Letters, EarlyView.
The ubiquitin system plays a central role in germinal center (GC) B cells, influencing differentiation to long‐lived memory B cells. Oncogenic gammaherpesviruses gain access to memory B cells by establishing latency in GC B cells. Mapping ubiquitin mechanisms in normal and infected GC B cells will define specific molecular circuits in B cells germane ...
Destiny Davis, Lesly Mejia, Emily K Moser   +2 more
wiley   +1 more source

Normality in group rings [PDF]

, 2008
Let KG be the group ring of a group G over a commutative ring K with unity. The rings KG are described for which xx(sigma)=x(sigma)x for all x=∑(g∈G)alfa(g)g∈KG, where x↦x(sigma)=∑(g∈G)alfa(g)f(g)sigma(g) is an involution of KG; here f:G→U(K) is a ...
Bódi, Viktor, Siciliano, S.
core   +1 more source

A NON-COMMUTATIVE GENERALIZATION OF MTL-RINGS [PDF]

Journal of Algebraic Systems
The current work extends the class of commutative MTL-rings established by the authors to the non-commutative ones. That class of rings will be named generalized MTL-rings since they are not necessary commutative. We show that in the non-commutative case,
Samuel Mouchili, Surdive Atamewoue, Selestin Ndjeya   +2 more
doaj   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

(7R,8S,9S,12S)-1-Benzyloxy-13,14-didehydro-12-hydroxy-2,13-dimethoxy-N-methylmorphinane

Acta Crystallographica Section E, 2011
In the title compound, C26H31NO4, a sinomenine derivative, the angle between the two aromatic rings is 53.34 (4)°. The N-containing ring is in a chair conformation, while the other two non-planar rings are in a half-boat conformation ...
Ai-Shun Ding, Hong-Sheng Gao, Dan Luo, Ning-Fei Jiang, Xing-Liang Zheng   +4 more
doaj   +1 more source

Metastasis on pause: How dormant tumor cells stay hidden within the tumor microenvironment and evade immune surveillance

Molecular Oncology, EarlyView.
Dormant cancer cells can hide in distant organs for years, evading treatment and the immune system. This review highlights how signals from the surrounding tissue and immune environment keep these cells inactive or trigger their reawakening. Understanding these mechanisms may help develop therapies to eliminate or control dormant cells and prevent ...
Kanishka Tiwary, Jose Javier Bravo‐Cordero   +1 more
wiley   +1 more source

4,8,9,10-Tetrakis(4-fluorophenyl)-1,3-diazatricyclo[3.3.1.1]decan-6-one

Acta Crystallographica Section E, 2009
In the title compound, C32H24F4N2O, all four six-membered rings that constitute the diazaadamantanone cage adopt chair conformations. Two of the four fluorophenyl substituents occupy axial positions and the other two occupy equatorial positions relative ...
S. Natarajan, V. Sudha Priya, V. Vijayakumar, J. Suresh, P. L. Nilantha Lakshman   +4 more
doaj   +1 more source