Development of Nickel Based Multifunctional Additive & Performance Evaluation of Photo Biodegradation

Nickel Based Multifunctional additive (Ni-MFA) different compositions (1, 2 & 3 wt %) of Ni-MFA Electron Microscopy (SEM), mechanical properties by Differential Scanning Calorimetry (DSC). incubated in the presence of the microbes such as asspergillus dump. Both living organism were capable of degrading polypropylene. was biodegraded within 45 days, %

Prevalence of hypertension and associated cardiovascular risk factors in Central India

Objectives: To study the difference in the prevalence of hypertension and associated risk factors in urban and rural populations and the association of hypertension with various determinants. Materials and Methods: A community-based cross-sectional study was conducted in 48 villages and 15 urban wards of Jabalpur District of Central India. Nine hundred and thirty-nine individuals aged 20 years and above (624 from rural areas and 315 from urban areas) were included in the study. The prevalence of hypertension and associated cardiovascular risk factors was assessed in the urban and rural populations. A pretested questionnaire was used to collect data on socio-demographic, behavioral, and dietary factors. Anthropometric measurements of weight, height, waist and hip circumference, and blood pressure measurements were taken using the standard methodology. The glucose oxidase-peroxidase and cholesterol oxidase-cholesterol peroxidase methods were used to measure plasma glucose and serum cholesterol, respectively. Bivariate analysis was followed by multivariate analysis to detect the odds of getting hypertension with various risk factors for the urban and rural populations separately. Hypertension was defined as per Joint National Committee (JNC) - VII criteria. Results: The response rate was 97%. Overall prevalence of hypertension was 17%, with 21.4% in the urban population and 14.8% in the rural population. Significantly higher mean values of weight, height, body mass index (BMI), hip circumference (HC), waist circumference (WC), waist hip ratio (WHR), systolic blood pressure (SBP), fasting blood sugar (FBS), and serum cholesterol levels were mapped in the urban population in comparison with the rural population. Multivariate logistic regression analysis identified increasing age, parental history of hypertension, tobacco smoking, tobacco chewing, physical inactivity, high estimated per capita salt consumption, and BMI ≥27.5 kg/m 2 as independent predictors for hypertension in the urban population, while in the rural population, increasing age, physical inactivity, central obesity, tobacco chewing and tobacco smoking were independent predictors for hypertension. Conclusion: The prevalence of hypertension and other cardiovascular risk factors was high in both urban and rural communities. Therefore, there is a need for comprehensive health promotion programs to encourage lifestyle modification

Study on Harmonic Analysis of Functionally Graded Plates Using Fem

This paper presents the harmonic and vibration analysis of functionally graded plates using the finite element method. Initially, the plates are assumed isotropic and the material properties of it are assumed to vary continuously through their thickness direction according to a power-law distribution of the volume fractions of the plate constituents. The four noded shell element is used to analyse the functionally graded plates. Four functionally graded plates-Al/Al2O3, Al/ZrO2, Ti–6Al–4V/Aluminium oxide, and SUS304/Si3N4 are considered in the study, and their results are obtained so that the right choice can be made in applications in high temperature environment and in reducing the vibration amplitudes in applications such as aircrafts, rockets, missiles, etc. Numerical results for the natural frequency and harmonic response amplitude are presented. Results are compared and validated with available results in the literature. Effects of boundary conditions, material and damping on natural frequency and harmonic response of the functionally graded plates are also investigated

Crescimento e absorção de fósforo em plantas de Eucalyptus grandis associadas a fungos micorrízicos em diferentes doses de fósforo e potenciais de água do solo

Avaliaram-se a produção de parte aérea (MS), a absorção (CP) e a eficiência de utilização de fósforo (EUP) por plantas de Eucalyptus grandis inoculadas com Glomus etunicatum (Ge) e, ou, Pisolithus tinctorius (Pt), em diferentes combinações entre doses de P e potenciais hídricos do solo (ψ), utilizando-se técnica de raízes subdivididas em vasos geminados, em casa de vegetação. Um dos vasos do conjunto geminado continha os tratamentos em arranjo fatorial de duas doses de P (P60 e P120, correspondentes a adições de 60 e 120 mg dm-3 de solo), três ψ (-10, -40 e -300 kPa) e quatro tratamentos com inóculos fúngicos (não inoculado, Ge, Pt, Ge + Pt). Outro vaso do conjunto continha 4,5 litros de solução nutritiva, sem P. Independentemente da dose de P adicionada, a colonização por Ge foi reduzida com a diminuição do ψ. Quanto à colonização por Pt, observou-se ausência de resposta a ψ em P60 e aumento em P120. A colonização ectomicorrízica foi reduzida quando Pt foi inoculado concomitantemente a Ge. Aumentos do CP, em função do incremento do ψ, foram observados em P60 e P120. No entanto, MS e EUP responderam positivamente à elevação de ψ apenas em P120. A inoculação isolada com Ge não apresentou efeito sobre as plantas, nas combinações entre ψ e P. A colonização por Pt apresentou efeitos diferenciados sobre as plantas, dependendo das condições de ψ e P no solo. Na combinação P60 e -300 kPa, correspondente à situação de menor disponibilidade de P, observou-se efeito deletério da colonização por Pt, isolada ou concomitantemente com Ge, sobre a EUP das plantas. Efeitos positivos da inoculação isolada com Pt sobre o CP foram observados nas combinações entre P120 e ψ de -10 kPa e -40 kPa, embora apenas na segunda situação este maior CP tenha sido acompanhado de incremento da MS