Feature Article

Evidence has accumulated in recent decades on the drastic impact of climate change on biodiversity. Warming temperatures have induced changes in species physiology, phenology, and have decreased body size. Such modifications can impact population dynamics and could lead to changes in life cycle and demography. More specifically, conceptual frameworks predict that global warming will severely threaten tropical ectotherms while temperate ectotherms should resist or even benefit from higher temperatures.

Old soil carbon (C) respired to the atmosphere as a result of permafrost thaw has the potential to become a large positive feedback to climate change. As permafrost thaws, quantifying old soil contributions to ecosystem respiration (Reco) and understanding how these contributions change with warming is necessary to estimate the size of this positive feedback. We used naturally occurring C isotopes (δ13C and Δ14C) to partition Reco into plant, young soil and old soil sources in a subarctic air and soil warming experiment over three years.

A human body may be able to adapt to extremes of dry-bulb temperature (commonly referred to as simply temperature) through perspiration and associated evaporative cooling provided that the wet-bulb temperature (a combined measure of temperature and humidity or degree of ‘mugginess’) remains below a threshold of 35 °C. (ref. 1). This threshold defines a limit of survivability for a fit human under well-ventilated outdoor conditions and is lower for most people.

In October, 2015, 22 scientists from ten countries met at the International Agency for Research on Cancer (IARC) in Lyon, France, to evaluate the carcinogenicity of the consumption of red meat and processed meat. The Working Group assessed more than 800 epidemiological studies that investigated the association of cancer with consumption of red meat or processed meat in many countries, from several continents, with diverse ethnicities and diets.

Concentrated solar power (CSP) plants have invited wide attention in various sunlight-rich regions around the world, including India. Under sponsorship of the Ministry of New and Renewable Energy, Government of India, the Indian Institute of Technology Bombay, Mumbai has conceptualized and carried out the basic engineering design, installation, commissioning and operation of a 1 MW(e) CSP plant on the campus of the National Institute of Solar Energy at Gwalpahari, near Gurgaon, Haryana, India.

The study examines the distribution and factors regulating the sloth bear in a fragmented hills of Meghamalai in Western Ghats through occupancy framework. Indirect evidences were sought over 133 grids of 4 sq. km size between December 2011 and December 2012. Indirect evidences were recorded in 58 of 133 sampled grids that estimated naїve occupancy of 0.43 (p = 0.3180).

Original Source

North East India (NEI) has 17.2 M ha under forest cover, which is ~25% of India’s total forest area. Of the total forest cover, 1.5 M ha is currently managed by shifting cultivation in NEI. Shifting cultivation, an integral part of culture and tradition of tribes of NEI, is presently unsustainable because of the populationdriven reduction in the duration of the fallow cycle (3–5 years).

Original Source

For improving the current pricing mode of medical services, the present study seeks to explore the pricing elements and processes, and establish the dynamic pricing model of involving both the government and hospitals. The pricing process and mathematical model show the logical relationships between medical prices and pricing elements. The causal relationship model reveals how to accomplish dynamic equilibrium between elements. The simulation model has been built based on system dynamics theory.

The outrageous price rise of the 62-year-old drug, Daraprim (Pyrimethamine) has sent the United States medical fraternity into a dizzy. The price of the drug was raised from USD 13.50 to USD 750 per pill in just over a month. This obnoxious price rise of over 5,000% came after the New York-based pharmaceutical company Turing Pharmaceuticals acquired the patent for the drug from Impax Laboratories. (Editorial)

Original Source

Exotic organisms introduced into non-native ecosystems may invade and affect the native biodiversity, which might lead to serious ecological, economic and sociological threats. Among the various pathways of introduction of non-native species, on-line pet trading is the most recently emerging method which facilitates rapid introduction of exotic species. Though on-line trading has become an influential factor for the growth of world economy in the current scenario, its role in the introduction of exotic species and their subsequent consequences in countries like India is least studied.