منابع مشابه
Session: 4B
ductance of layer. These dependencies showed that hybridization appears when sheet conductance of layer (σ) exceeds some critical value σcr), the magnitude of which changes in wide range and depends on material and plate orientation. For example, for aforementioned hybrid pair A0 SH0 in potassium niobate σcr = 10−3S. If σ < σcr modes are not coupled, i.e. their dispersion curves do not repulse....
متن کامل(4bS,8aS)-1-Isopropyl-4b,8,8-trimethyl-4b,5,6,7,8,8a,9,10-octahydrophenanthren-2-yl acetate
The hemisynthesis of the title compound, C22H32O2, was carried out through direct acetyl-ation reaction of the naturally occurring diterpene totarol [systematic name: (4bS,8aS)-4b,8,8-trimethyl-1-propan-2-yl-5,6,7,8a,9,10-hexa-hydro-phen-an-thren-2-ol]. The mol-ecule is built up from three fused six membered rings, one saturated and two unsaturated. The central unsaturated ring has a half-chair...
متن کامل(4bS,8aS)-1-Isopropyl-4b,8,8-trimethyl-4b,5,6,7,8,8a,9,10-octahydrophenanthren-2-yl benzoate
The title compound, C27H34O2, was hemisynthesized through direct benzoyl-ation of the naturally occurring meroterpene totarol. The central fused six-membered ring has a half-chair conformation, whereas the terminal six-membered ring displays a chair conformation. The dihedral angle between the fused benzene ring and the benzoyl benzene ring is 73.05 (14)°. The S,S chirality of the mol-ecule is ...
متن کاملSIP Extensions for QoS support Oct - 02 Glossary SIP Session Initiation Protocol
This work describes an enhancement to SIP protocol for the interworking with QoS enabled IP networks. The proposed mechanism is simple and it fully preserves backward compatibility and interoperability with current SIP applications. The draft describes also, as an example, the application of this mechanism to a particular QoS enabled IP network, which implements Diffserv as transport mechanisms...
متن کاملSelective Phosphodiesterase 4B Inhibitors: A Review
Phosphodiesterase 4B (PDE4B) is a member of the phosphodiesterase family of proteins that plays a critical role in regulating intracellular levels of cyclic adenosine monophosphate (cAMP) by controlling its rate of degradation. It has been demonstrated that this isoform is involved in the orchestra of events which includes inflammation, schizophrenia, cancers, chronic obstructive pulmonary dise...
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ژورنال
عنوان ژورنال: Plastic and Reconstructive Surgery - Global Open
سال: 2019
ISSN: 2169-7574
DOI: 10.1097/01.gox.0000583316.51521.49