Results 21 to 30 of about 28,366 (275)

Enhanced Stability of Superheavy Nuclei due to High-Spin Isomerism [PDF]

open access: yes, 2004
Configuration-constrained calculations of potential-energy surfaces in even-even superheavy nuclei reveal systematically the existence at low excitation energies of multi-quasiparticle states with deformed axially symmetric shapes and large angular ...
E. G. Zhao   +8 more
core   +2 more sources

Splenic Infarct with Polysplenia Syndrome

open access: yesJournal of the Belgian Society of Radiology, 2022
A rare case of spontaneous splenic infarction with polysplenia is presented. The diagnosis was made by confirmed by enhanced computed tomography (CT), which showed multiple spleens in the left abdomen and one of the spleen showing low attenuation areas ...
Qin Ling Zhu, Wenjun Zhu
doaj   +1 more source

SYNTESIS AND CRYSTALLINE STRUCTURE OF THE EXO-3,6-DIMETHYL-3,6-EPOXI-1,2,3,6-TETRAHYDROPHTLALIMIDE AND ITS N-BROMODECYL ANALOG: TWO THERMALLY LABILE DIELS-ALDER ADDUCTS [PDF]

open access: yes, 2014
Indexación: Web of Science; Scielo.The molecular structure of the exo-3,6-dimethyl-3,6-epoxi-1,2,3,6-tetrahydrophthalimide (1), determined by X-ray diffraction analysis, as well as, its complete spectroscopic characterization and the synthesis and ...
ARAYA-FUENTES, EYLEEN   +4 more
core   +2 more sources

Arterial desaturation due to pulmonary arteriovenous malformations after the Kawashima Operation

open access: yesAnnals of Pediatric Cardiology, 2016
Arterial desaturation may occur after the Kawashima procedure and, in the absence of venovenous collaterals is usually due to pulmonary arteriovenous malformations.
Rohit S Loomba
doaj   +1 more source

Photochemistry of Furyl- and Thienyldiazomethanes: Spectroscopic Characterization of Triplet 3-Thienylcarbene [PDF]

open access: yes, 2012
Photolysis (λ \u3e 543 nm) of 3-thienyldiazomethane (1), matrix isolated in Ar or N2 at 10 K, yields triplet 3-thienylcarbene (13) and α-thial-methylenecyclopropene (9). Carbene 13 was characterized by IR, UV/vis, and EPR spectroscopy. The conformational
Albers R.   +67 more
core   +3 more sources

Polymerization Isomerism in Co-M (M = Cu, Ag, Au) Carbonyl Clusters: Synthesis, Structures and Computational Investigation

open access: yesMolecules, 2021
The reaction of [Co(CO)4]− (1) with M(I) compounds (M = Cu, Ag, Au) was reinvestigated unraveling an unprecedented case of polymerization isomerism.
Cristiana Cesari   +7 more
doaj   +1 more source

Coordination polymers and isomerism; a study using silver(I) and a ∏-stacked ligand [PDF]

open access: yes, 2001
The ligand 2,5-bis(2-pyridylmethylsulfanylmethyl)pyrazine (L) was prepared by the base coupling of 2-(sulfanylmethyl)pyridine and 2,5-bis(chloromethyl)pyrazine. This new ligand was treated with AgClO₄ in a 1 1 metal-to-ligand ratio and with AgNO₃in a 2
Caradoc-Davies, Paula L.   +2 more
core   +2 more sources

Left Right Patterning, Evolution and Cardiac Development

open access: yesJournal of Cardiovascular Development and Disease, 2014
Many aspects of heart development are determined by the left right axis and as a result several congenital diseases have their origins in aberrant left-right patterning.
Iain M. Dykes
doaj   +1 more source

Design of a structure model set for inorganic compounds based on ping-pong balls linked with snap buttons

open access: yesChemistry Teacher International, 2021
Structure model sets for inorganic compounds are generally expensive; their distribution to all students in a class is therefore usually impractical. We have therefore developed a structure model set to illustrate inorganic compounds.
Horikoshi Ryo   +3 more
doaj   +1 more source

Structural evolution in the neutron-rich nuclei 106Zr and 108Zr [PDF]

open access: yes, 2011
The low-lying states in 106Zr and 108Zr have been investigated by means of {\beta}-{\gamma} and isomer spectroscopy at the RI beam factory, respectively. A new isomer with a half-life of 620\pm150 ns has been identified in 108Zr. For the sequence of even-
Baba, H.   +46 more
core   +2 more sources

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