Passiflora species were known by their anticonvulsant, anxiolytic and sedative activities. The aim of this study was to investigate the chemical composition of the most active leaf extract of Passiflora caerulea L. grown in Egypt. The ethanolic extract of the leaves exhibited higher activity than aqueous extract as anticonvulsant (63% potency relative to carbamazepine), analgesic (70% potency r...

511 commercial emails from four asian countries, namely china, pakistan, india, and iran have been analyzed in a mixed-method design. the focus of the study is on the two features of politeness and intimacy. in the quantitative analysis, the model proposed by brown & levinson (1987) and that of coulmas (2005) which have drawn upon the features of indirectness in requesting and the length of...

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The Lyα absorption systems observed in the spectra of QSOs are likely to possess bulk peculiar velocities. The free electrons in these systems scatter the microwave background and distort its spectrum through the kinematic Sunyaev-Zel’dovich effect. I calculate the temperature fluctuations of the microwave sky due to variations in the number of Lyα systems along different lines-of-sight through...

A diffuse and approximately isotropic high-energy photon background has been known to exist in the xray regime since 1962 [1] and a similar background was observed by the SAS-2 satellite at high energies [2]. Generally, isotropic or nearly isotropic emission may arise from extragalactic sources or an extended halo around the galaxy. It may result from superposition of many unresolved point sour...

In this Letter we present a summary of the spatial properties of the cosmic microwave background radiation based on the full 4 yr of COBE Differential Microwave Radiometer (DMR) observations, with additional details in a set of companion Letters. The anisotropy is consistent with a scale-invariant power-law model and Gaussian statistics. With full use of the multifrequency 4 yr DMR data, includ...