Synthesis, spectral characterization and bioactivity evaluation of sulfonamide derivatives of p-nitrobenzene sulfonylchloride

1375-1383A simple and convenient method for the synthesis of biologically active sulfonamide derivatives of p-nitrobenzene sulfonylchloride has been achieved. All the title compounds have been characterized by spectral and elemental analysis. They have been further screened in vitro for their antibacterial and antifungal activities. All the compounds show good to moderate activity against both bacteria and fungi when compared with standard bactericide, Streptomycin and fungicide, Nystatin

Flash X-ray radiography technique to study the high velocity impact of soft projectile on E-glass/epoxy composite material

In the present paper, the high velocity impact of 9 mm soft lead projectile on 10 mm and 30 mm thick E-glass/epoxy composites was studied using a 450 kV Flash X-ray radiography (FXR) system. The basic parameters of FXR imaging, such as effect of ratio of target to film (TF) and source to target (ST) distances and X-ray penetration thickness of the composite material were optimized based on clarity and the actual dimensions of the objects. The optimized parameters were used in the FXR imaging of the ballistic event of 9 mm soft projectile on E-glass/epoxy composite. The real time deformation patterns of both the projectile and composite target during the ballistic impact were captured and studied at different time intervals. The notable failure modes of the 10 mm thick target with time include fibre breakage, bulging on the back side, delamination, recovery of the bulging, reverse bulging and its recovery. However, with increase in thickness of the target to 30 mm the only failure mechanism observed is the breaking of fibres. The ballistic impact event was also numerically simulated using commercially available LS-DYNA software. The numerically simulated deformation patterns of the projectile and target at different time intervals are closely matching with the corresponding radiographic images. Keywords: Flash X-ray radiography, E-Glass/epoxy composite, Ballistic impact, Numerical simulatio

Knowledge Attitude and Practices regarding complimentary Feeding in mothers of children between 6- 24 months in and around Tirupati

IntroductionThe level of child under-nutrition remains unacceptable throughout the world. Today more than 195 million children in developing countries are stunted. Suboptimal infant and young child feeding practices and micronutrient deficiencies are major contributors to under-nutrition, morbidity and mortality in children. Improving infant and young child feeding practices will help South Asian countries achieve the Millennium Development Goal of reducing child mortality.ObjectivesTo assess the knowledge, attitude and practices of complementary feeding and the source of information among mothers of children from 6 months to 24 months of age. To correlate the complementary feeding practices, with various factors affecting like education, occupation, parity of the mother, sex of the child, socioeconomic status, and the type of the family.MethodsIt is a cross-sectional study, including, 300 mothers with children aged 6 - 24 months, attending Pediatric Outpatient Department of Sri Venkateswara Ramnarayana Ruia government General Hospital Tirupati from February 2014 to January 2015. Data was collected using a self-administered, semi-structured questionnaire. Statistical AnalysisMean, Frequencies, Percentages, Chi-Square test and Pearson’s correlation test. ResultsMean age of knowledge of the mothers regarding complementary feeding was 4.25 months. About 40% of the mothers had knowledge that complementary feeding should be started at 6 months and 71 mothers (24%) had no knowledge. The reason quoted by most of the mothers for starting complementary feeding in this study was, not enough milk along with traditional beliefs and advices from the elderly females in the family (34%). In the present study majority of the mothers (76.3%) started complementary feeding with homemade foods.ConclusionOverall there is a predominant prevalence of early complementary feeding practices as evidenced by the results of the study

Cross-cultural variations in climate for autonomy, stress and organizational productivity relationships:A comparison of Chinese and UK manufacturing organizations

Cross-cultural researchers have questioned the extent to which European– American management practices can be transported to major markets in Asia, such as the People’s Republic of China. Applying employee involvement theory, we examined the relationships between climate for autonomy, work demands climate, employee stress and organizational productivity in a crossnational study of 51 UK and 104 Chinese manufacturing organizations. We predicted and found that climate for autonomy was positively and negatively related to stress in the Chinese and UK contexts, respectively. The interaction of climate for autonomy and work demands climate was significant: climate for autonomy was positively related to organizational productivity only when work demands climate was low

Synthesis and bioactivity evaluation of new phenyl <i>N,N′-</i>phenylphosphorodiamidates

<p></p> <p>A series of new biologically active phenyl N,N<b>^′-</b>phenyl phosphorodiamidates were synthesized by reacting phenyl phenylphosphoramidochoridate with various amines. All the newly synthesized compounds <b>3a-j</b> were tested for their antioxidant activity by 1,1-diphenyl-2-picrylhydrazyl (DPPH), hydrogen peroxide (H₂O₂) and nitric oxide (NO) methods. In all the three methods the compounds <b>3c</b> (phenyl N-(6-methoxy-1,3-benzothiazol-2-yl)-N′-phenyl-phosphorodiamidate) and <b>3e</b> (phenyl N-(5-ethyl-1,3,4-thiadiazol-2-yl)-N′-phenylphosphorodiamidate) showed good radical scavenging activity.</p