60 research outputs found
MY FATHER BALIAH: COLONIALISM, EDUCATION AND EMPOWERMENT
No full textThis paper is a study and analysis of Y.B. Satyanarayana’s autobiographical text, My Father Baliah. It examines how the author’s family were able to negotiate the spaces of colonial modernity and its institutions, such as the railways and educational institutions, for the upliftment of their family. Historically, education and respectful employment were categorically denied to Dalits. They were denied to Dalits due to the prevailing Brahminical caste system which prohibited Dalits from either acquiring book knowledge or owning any form of wealth or assets. However, the Dalit community was able to access some resources of modernity during British colonialism. Interestingly, the author documents the positive role Muslim rulers of the times as well as the British who enabled this mobility of a downtrodden caste. The paper looks at these historical shifts which opened a liminal liberal space for the author’s forefathers during colonialism and sowed the seeds of education and empowerment for his family and an entire community. Article visualizations
Magnetic susceptibility studies of the liquid crystal N-(p-n-pentyloxybenzylidene) p-n-butylaniline
No full textThe temperature variation of the magnetic susceptibility (x) of N-(p-n-pentyloxybenzylidene) p-n-butylaniline is reported in the isotropic, nematic, smectic A, smectic AG and smectic G phases. Abrupt changes in x and Δx are observed at various phase transitions. An unusual decrease in x with decreasing temperature is observed during the smectic A-smectic AG and smectic AG-smectic G transitions
Density and ultrasonic velocity measurements in hexyloxybenzylidene phenylazoaniline
No full textThe temperature variation of density and ultrasonic velocity of the liquid crystal hexyloxybenzylidene phenylazoaniline are reported. The density across the smectic A-smectic B transition is more predominant than the other transitions. The density variation with temperature and the calculated thermal expansion coefficients suggest that the transitions isotropic liquid-nematic, nematic-smectic A and smectic A-smectic B are of first order. Anomalous behaviour of ultrasonic velocity is observed across the isotropic liquid-nematic transition and prominent dips in velocity are observed at the nematic-smectic A and smectic A-smectic B transitions. The adiabatic compressibility (βad) Rao number (Ra) and molar compressibility (B) are estimated using the experimental density and ultrasonic velocity
Evidence for Steric Enhancement of Resonance in 2-Alkylanisoles from 13C NMR T1 Relaxation Times of Methoxy-carbons and from Atomic Charges on Methoxy -oxygens
No full textH-42/8. Appu Colony. Thiruvanmiyur, Madras-600 041
Manuscript received 27 May 1991, revised 11 March 1993, accepted 31 March 1993
Evidence for Steric Enhancement of Resonance in 2-Alkylanisoles from 13C NMR T1 Relaxation Times of Methoxy-carbons and from Atomic Charges on Methoxy -oxygen
SOME ARYL NAPHTHYL SULPHIDES AND SULPHONES
No full textThe Fries isornerisation of α-naphthyl benzene-, p-toluene- and o-toluene-sulphonates is described. The resulting sulphones are shown to be o-hydroxysulphones from their ultraviolet absorption spectra as well as wet and dry melting points. Methyl α-naphthyl ether condenses with arenesulphonyl chlorides in the presence of anhydrous stannic chloride to furnish aryl 4-metboxynaphthyl sulphones
Steric enhancement of resonance
No full textThe rate constants and the activation energies for the alkaline hydrolysis of some substituted ethyl benzoates furnish evidence for the phenomenon of steric enhancement of resonance. For 3-substituted-4-alkoxybenzoic esters the rate constants calculated on the basis of the principle of additivity of substituent effects are appreciably higher than the observed values, indicating that the 3-substituent does not sterically inhibit the resonance interaction of the alkoxy and ester groups but actually enhances it. The cause of this steric enhancement of resonance is explained. The rates of quaternization of some N,N-dimethylanilines with methyl iodide have also been determined. The observed rate constants of 4-alkoxy-3-methyl-N,N-dimethylanilines are significantly higher than the values predicted on the basis of additivity of group effects. Thus there is enhanced resonance interaction of the alkoxy group with the dimethylamino group increasing the nucleophilicity of the dimethylamino group. A similar steric enhancement of resonance is observed in the case of 3-methyl-4-methylthio-N,N-dimethylaniline also
A cryoscopic study of the behaviour of <i>s</i> -trinitrobenzene and some other organic compounds in ethanolamine
No full textUltraviolet Absorption Spectra of Some Aryl Thiolacetates : A Study of the Expansion of the Valence Shell of Sulphur
No full textUltraviolet absorption spectra of Horne aryI thoIacaetates and aryl acetates haw, been recorded and analysed. The data indicate the possibility of the ezpanakni of the valence shell of sulphur in -anisyl thiolacotate and -dimethylaminophenyl thiolactate
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