Condensation cyclization reactions of electron deficient aromatics. 4: Tricyclic nitropropene nitronates from the reaction of phloroglucinol and cycloalkanones with sym-trinitrobenzene

Interesting similarities have been shown between the reactions of sym-trinitrobenzene with cycloalkanones, and with phloroglucinol. Previously unsuspected common intermediates have been shown to intervene. The structurally similar products in each case are tricyclic nitropropene nitronates. Protonation of these yields the corresponding nitronic acids in certain instances

Absorption spectrum in the wings of the potassium second resonance doublet broadened by helium

We have measured the reduced absorption coefficients occurring in the wings of the potassium 4S-5P doublet lines at 404.414 nm and at 404.720 nm broadened by helium gas at pressures of several hundred Torr. At the experimental temperature of 900 K, we have detected a shoulder-like broadening feature on the blue wing of the doublet which is relatively flat between 401.8 nm and 402.8 nm and which drops off rapidly for shorter wavelengths, corresponding to absorption from the X doublet Sigma+ state to the C doublet Sigma+ state of the K-He quasimolecule. The accurate measurements of the line profiles in the present work will sharply constrain future calculations of potential energy surfaces and transition dipole moments correlating to the asymptotes He-K(5p), He-K(5s), and He-K(3d).Comment: 2 figure

The interaction of a magnetoelastic shear wave with longitudinal cavities in a conducting layer

We study the influence of a strong magnetic field on the interaction of a shear wave with longitudinal cylindrical cavities in an elastic ideally conducting layer. The resulting singular integral equation of the boundary-value problem under consideration is implemented numerically for the case of a single cavity. We present the results of computation of the stresses on the edge of a circular cavity and an elliptical cavity. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/2163

Rapid zygosity determination in mice by SYBR Green real-time genomic PCR of a crude DNA solution

The original publication is available at www.springerlink.com.ArticleTRANSGENIC RESEARCH. 17(1): 149-155 (2008)journal articl

Employed Parents of Children With Mental Health Disorders: Achieving Work–Family Fit, Flexibility, and Role Quality

Extensive interviews with 60 employed parents of school-age children treated for mental health problems explored work–family fit, flexibility, family support, and work–life strategies in relation to role quality. Role quality was measured as employment and parenting rewards and concerns. Work–family fit was positively related to family flexibility but not work flexibility. Higher flexibility in work and family predicted lower job concerns, and work flexibility and work–family fit were predictors of job rewards. Parental concerns were dependent on flexibility and work–family strategies. Single parents had significantly fewer sources of family support and used fewer work–family strategies than caregivers with partners. Human services providers should collaborate with families by jointly exploring new flexibility and support strategies in work and family domains