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COVID-19 Pandemic in the Indo-Pacific: How the Countries are Dealing Amidst Changing Geopolitics (NIAS/CSS/ISSSP/U/RR/15/2020)
Get PDFThe COVID-19 (Coronavirus) pandemic is defining global response to the greatest challenge we faced since World War Two. It has significant bearing on social, economic, political and security of the nations as well global. People have lost jobs and income, with no way of knowing when normality will return, migrants within the country and the expatriates are forced to return to the home. The nations, those are heavily dependent on consumer economy, manufacturing, and tourism, etc. have nearly insolvent. Every country prepares to reopen and hoping to recover as much as possible. But there are multiple challenges. Apart from containing the spread of the virus and treating infected patients, there are related economy, political and security issues, and questions about the future regional and world order. The report analysis how the countries in the region are coping up with the pandemic amidst the changing geopolitics
The Elephant in the Room: Methods, Challenges and Concerns in the Monitoring of Asian Elephant Populations
No full textIncreasing anthropogenic pressures has led to the fragmentation of Asian elephant habitats, affecting their numbers, demography and ranging patterns across their
range. Baseline information on the demography and population dynamics of free-ranging Asian elephants is often unavailable. Population monitoring at the landscape level has many constraints, including those of visibility, habitat, terrain and field logistics, among several others. While knowing elephant numbers may be important for managing local populations, demographic parameters and distribution patterns are perhaps more crucial to ascertain long-term trends for conservation
Dialogue with dissent: Maoist movement
Get PDFThe outlaws must come up with clear demands concerning the people they claim to represen
Social Decision Making is influenced by size of shoal but not boldness, sociability or familiarity in Deccan Mahseer (Tor Khudree)
No full textMany piscine species form fission-fusion societies where decisions to leave or join a shoal are influenced by factors such as shoal size, familiarity and species. Individuals exhibit distinct shoaling preferences based on behavioural traits such as boldness and sociability. In this study, we examined the link between shoaling decisions and behavioural traits in a hatchery reared population of an endangered megafish, the Deccan mahseer (Tor khudree). We found that this fish exhibits preference for larger shoals when presented with choices of 2 vs 4 and 2 vs 8 shoal sizes. However, no preference for isolated familiar or unfamiliar conspecifics over invasive heterospecifics was observed. Moreover, individual shoaling preferences did not correlate with their boldness or sociability. These results suggest that juvenile hatchery reared mahseers reintroduced into natural habitats may shoal with invasive species and modifying their social behaviour by amending rearing practices could improve outcomes of restocking interventions
Microbial Communication: Mathematical Modeling, Synthetic Biology and the Role of Noise
No full textThis book introduces the concept of bacterial communication systems from a mathematical modeling point of view. It sheds light on the research undertaken in the last three decades, and the mathematical models that have been proposed to understand the underlying mechanism of such systems. These communication systems are related to quorum sensing mechanisms and quorum sensing regulated processes such as biofilm formation, gene expression, bioluminescence, swarming and virulence
Effect of varying extent of PCM capsule filling on thermal stratification performance of a storage tank
No full textAmong the different pathways of improving the energy storage and energy utilization in a thermal energy storage system, the formation of thermal stratification in hot water tanks is a promising technology. In this study, we developed a novel numerical model to assess the thermal stratification performance in a hot water tank due to addition of encapsulated phase change material (PCM) by varying the bed height, bed porosity and the encapsulation diameter. The formulation of the present numerical model is devoid of complicated momentum and energy equations. A set of simplified energy balance equations is developed to account for heat transfer between the heat transfer fluid (HTF) and the PCM considering local thermal non-equilibrium. The temperature profile at the outlet of the storage tank during charging process demonstrates an enhancement in the Richardson number by 58.3%, at the end of the charging process, upon doubling the PCM bed height, and the corresponding improvement in the charging efficiency is found to be 54.6%. The melting point of PCM plays a pivotal role on the extent of stratification and storage efficiency, as it dictates the amount of heat diffusion towards the bottom section of TES. During discharge phase, if the HTF flow rate is doubled from the nominal value of 2 L/min, the extraction efficiency is enhanced by ∼16.7%
