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EN
Seismic hazard assessment for Quetta is carried out using probabilistic seismic hazard analysis technique based on area sources and augmented by line source used for the first time in Pakistan. Seismic data has been collected and analyzed in spatial and temporal domains. Five Seismic Zones have been modeled in line with tectonics of the region with b-value of 1.14 using regression. The b-value is slightly higher, which is attributed to the fact that aftershocks were not removed as it distorted the dataset. Five fault sources are modeled, with three as reverse and two as strike-slip with 7.8 as maximum magnitude. Mach Structure is included in the tectonics for the first time. The attenuation relation used in the present study is recommended by various researchers. The expected Peak Ground Acceleration for 500-year return period is 4.79 m/s2 for rock outcrop and characterized as very high. Furthermore, variation in spectral acceleration within Quetta city is observed, for which spectral curves are developed for four different places.
EN
The synthesis and characterization of new coordination compounds of some organotin(IV) chlo rides with fexofenadine are reported; the ligand molecules appear to be bound to the tin atom through carbonyl oxygen atom. The structure of the synthesized compounds has been characterized by elemental analyses, and bonding in these complexes is discussed in terms of their IR, 1H NMR and through Mössbauer studies. The spectroscopic results obtained are in full agreement with the proposed 1:1 stoichiometry. The synthesized complexes have been screened for anti-inflammatory effect. The results obtained showed that triphenyltin(IV) derivatives of fexofenadine exhibited promising anti-inflammatory effect as compared to the other tin(IV) derivatives of the same ligand.
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