Results 41 to 50 of about 4,725,478 (361)

Tris(ethylenediamine-κ2N,N′)nickel(II) bis(dimethyl phosphate)

Acta Crystallographica Section E, 2012
In the title compound, [Ni(C2H8N2)3][O2P(OCH3)2]2, the NiII atom is six-coordinated in a distorted octahedral geometry by six N atoms from three ethylenediamine ligands. The P atoms of the anions adopt a distorted tetrahedral geometry.
Masoud Rafizadeh, Hamid Reza Saadati Moshtaghin, Vahid Amani   +2 more
doaj   +1 more source

Translation-Based Embeddings with Octonion for Knowledge Graph Completion

Applied Sciences, 2022
Knowledge representation learning achieves the automatic completion of knowledge graphs (KGs) by embedding entities into continuous low-dimensional vector space.
Mei Yu, Chen Bai, Jian Yu, Mankun Zhao, Tianyi Xu, Hongwei Liu, Xuewei Li, Ruiguo Yu   +7 more
doaj   +1 more source

PRE-SERVICE TEACHERS PERFORMANCE IN GEOMETRY IN THE COLLEGES OF EDUCATION, GHANA

JETEN, 2022
Studies indicate that geometry enables pre-service teachers to link mapping objects in the classroom to real-life situations. Additionally, studies indicated that the proficiency development of the participants is a challenge.
Puotier Zutaah, Marguerite Khakasa Miheso-O’Connor, Samson Rosana Ondigi   +2 more
doaj  

catena-Poly[di-μ3-bromido-hexa-μ2-bromido-dibromidobis(O-methyl pyridine-2-carboximidate-κ2N,N′)pentamercury(II)]

Acta Crystallographica Section E, 2012
The title compound, [Hg5Br10(C7H8N2O)2]n, contains two μ3-bridging Br atoms, six μ2-bridging Br atoms and two terminal Br atoms. One HgII atom, lying on an inversion center, adopts a distorted octahedral geometry defined by six Br atoms.
Sadif A. Shirvan, Moayad Hossaini Sadr
doaj   +1 more source

Diiodido{2-(morpholin-4-yl)-N-[1-(2-pyridyl)ethylidene]ethanamine-κ3N,N′,N′′}zinc

Acta Crystallographica Section E, 2011
In the title compound, [ZnI2(C13H19N3O)], the ZnII ion is five-coordinated in a distorted square-pyramidal geometry, in which the basal plane is defined by three N atoms from the Schiff base ligand and one iodide ion.
Nura Suleiman Gwaram, Hamid Khaledi, Hapipah Mohd Ali   +2 more
doaj   +1 more source

Shape matters: the relationship between cell geometry and diversity in phytoplankton

bioRxiv, 2020
Organisms’ size and shape profoundly influence their ecophysiological performance and evolutionary fitness, suggesting a link between morphology and diversity.
A. Ryabov, O. Kerimoglu, E. Litchman, I. Olenina, L. Roselli, A. Basset, E. Stanca, B. Blasius   +7 more
semanticscholar   +1 more source

The size of triangulations supporting a given link [PDF]

, 2000
Let T be a triangulation of S^3 containing a link L in its 1-skeleton. We give an explicit lower bound for the number of tetrahedra of T in terms of the bridge number of L.
Armentrout, Burde, Furch, Gabai, Goodrick, Haken, Hemion, Kneser, Lickorish, Matveev, Mijatović, Rubinstein, Scharlemann, Schrijver, Simon A King, Thompson   +15 more
core   +5 more sources

2-(5-Bromo-2-methylphenyl)propan-2-ol

Acta Crystallographica Section E, 2010
The title compound, C10H13BrO, crystallizes with four independent molecules of similar geometry in the asymmetric unit. The crystal packing is stabilized by intermolecular O—H...O hydrogen bonds, which link the molecules into tetramers.
Hui Zeng, Xin-Lin Liu
doaj   +1 more source

Stochastic Thermodynamic Interpretation of Information Geometry. [PDF]

Physical Review Letters, 2017
In recent years, the unified theory of information and thermodynamics has been intensively discussed in the context of stochastic thermodynamics. The unified theory reveals that information theory would be useful to understand nonstationary dynamics of ...
Sosuke Ito
semanticscholar   +1 more source

Bis(μ2-quinoline-2-carboxylato)-κ3N,O1:O1;κ3O1:N,O1-bis[(acetato-κO)(ethanol-κO)lead(II)]

Acta Crystallographica Section E, 2011
In the centrosymmetric dinuclear title compound, [Pb2(C10H6NO2)2(CH3COO)2(C2H5OH)2], one O atom of the carboxylate group of the quinoline-2-carboxylate anion connects the two PbII atoms.
Ezzatollah Najafi, Mostafa M. Amini, Seik Weng Ng   +2 more
doaj   +1 more source