Ecosystem services: A bridging concept of ecology and economics

Nature is bountiful to all living organisms on Earth including human beings. Human, throughout the life, obtained various benefits from ecosystem for the sustenance on planet Earth. Ecosystem service is a linking concept between ecology and econom- ics recently paying attention worldwide. Economic and social development critically depends on the natural capital although at the environmental cost but need bridging of nature components. In the current scenario, due to increasing anthropogenic interferences ecosystem is under great threat. It is time to include ecosystem services agenda in the framework of policy to human and sustainable development

Some Sociological Reflections on Development in the Eastern Himalayas

Occasional Papers in Sociology and Anthropology - Volume 2, 199

Commercialization unsustainable to Himalayan environment

Indigenous people of north western Himalayan region of India utilize a wide range of biological resources for subsistence. The age-old practices of resource utilization have supported the rural economy with equity and social justice and conservation of resources since generations. However, in recent times, due to market demand, the biological resources are subjected to premature and frequent harvesting of ruthless exploitation by unskilled people particularly from outskirt of people. In addition to this, unfavorable government forest policy and ignoring people’s participation in decision-making and changing climatic conditions are some of the prime factors responsible for changing traditional resource management practices. Over increasing population pressure demand lead for market oriented commercial demand has resulted in over-exploitation of some of the plant resources at alarming pace. This calls for the development of resource management techniques built up on traditional knowledge capable of meeting the challenges of conservation on the one hand and socio-economic development of the local people on the other. Changing indigenous resource management practices in north western Himalaya imperils herbal based health care system and livelihood pattern

Weak-antilocalization and Surface Dominated Transport in Topological Insulator Bi2Se2Te

We explore the phase coherence of thin films of the topological insulator material Bi2Se2Te grown through pulsed laser deposition (PLD) technique. The films were characterised using various techniques for phase and composition. The films were found to be of good quality. We carried out extensive magneto-transport studies of these films and found that they exhibit two dimensional weak antilocalization behaviour. A careful analysis revealed a relatively high phase coherence length (58nm at 1.78K) for a PLD grown film. Since PLD is an inexpensive technique, with the possibility to integrate with other materials, one can make devices which can be extremely useful for low power spintronics and topological quantum computation.Comment: 16 page

Solute-Solvent Interaction in Dimethyl Sulphoxide (DMSO) from Viscosity Data: Viscosities of Iodides of Li, Na, IZ, Rb & Cs & of Some Tetraalkylammonium Iodides in DMSO

388-39

A Study of Ion-Solvent Interaction in Propylene Carbonate from Viscosity Data

1013-101

Spatial Noise Reduction by Optical Filters in Mercury Cadmium Telluride Hybrid Focal Plane Arrays

This paper discusses the role of optical filters in the reduction of spatial noise in Hgl-xCdxTe hybrid focal plane arrays (FPAs). It is shown that optical filters of appropriate cut-off wavelength can cause considerable reduction in the spatial noise of both mid-wavelength infrared (MWIR) and long-wavelength infrared (LWIR) arrays. These filters can result in considerable improvement in the NETD performance of a MWIR HgCdTe FPA, whereas in LWJR FPAs, these can also be used to trade-off the requirement of composition uniformity of the HgCdTe substrate, depending upon the relative magnitude of temporal and spatial noise component