Anomalous lateral diffusion in a viscous membrane surrounded by viscoelastic media

We investigate the lateral dynamics in a purely viscous lipid membrane surrounded by viscoelastic media such as polymeric solutions. We first obtain the generalized frequency-dependent mobility tensor and focus on the case when the solvent is sandwiched by hard walls. Due to the viscoelasticity of the solvent, the mean square displacement of a disk embedded in the membrane exhibits an anomalous diffusion. An useful relation which connects the mean square displacement and the solvent modulus is provided. We also calculate the cross-correlation of the particle displacements which can be applied for two-particle tracking experiments.Comment: 6 pages, 2 figure

Marital Adjustment and Interpersonal Needs of Married Individuals

The present study was conducted to explore the dyadic adjustment and interpersonal needs of married individuals. For this purpose the responses were obtained on Revised- Dyadic Adjustment Scale and Fundamental Interpersonal Relations Orientation-Behavior Scale by 351 married individuals who were selected using snowball sampling technique. The obtained responses were scored and analyzed using ANOVA, Pearson Correlation and Multiple Regression Analysis (hierarchical stepwise). The findings of the study were that situational factors like qualifications, number of children and structure of family had statistical significant effect on dyadic adjustment. For interpersonal needs along with all these factors number of dependent family members also had significant effect. Apart from situational factors, the results also indicate that there was significant negative relationship between interpersonal needs and dyadic adjustment of married individuals. Moreover, significant impact of interpersonal need on their dyadic adjustment was also found

Hydrogen Bonding Interaction between 1-Propanol and Acrylic Esters in Non-polar Solvents: An FTIR Study

The association between 1-propanol and acrylic esters (methyl methacrylate, ethyl methacrylate and butyl methacrylate) in non-polar solvents, viz. n-heptane, CCl4, and benzene has been investigated by means of FTIR spectroscopy. The formation constants of the 1:1 complexes have been calculated using Nash’s method. The values of the formation constant and the Gibbs energy vary with ester chain length, which suggests that the strengths of the intermolecularOH…O=Cbonds are dependent on the alkyl group of the acrylic ester and the results show that the proton accepting ability of acrylic esters is in the order methyl methacrylate < ethyl methacrylate < butyl methacrylate. The results also show a significant dependence of the association constant upon the solvent used. The solvent effect on the hydrogen bond equilibria is discussed in terms of specific interactions between the solute and the solvent.KEYWORDS: FTIR spectroscopy, acrylic esters, hydrogen bonding, solvent effects

Responsible Fisheries Kerala Fish Workers Open New Path in Co-Governance

Traditional fish workers and trawl operators in Kerala, long at loggerheads, have framed a code of responsible fishing practices. The article argues that this landmark agreement between two hitherto irreconcilable groups was borne out of a crisis in pelagic fish resources. It also argues that the agreement holds important lessons for multi-stakeholder governance in the fisheries sector