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Demethylfruticuline A and fruticuline A, the most abundant compounds from the surface extract of Salvia corrugata Vahl., have shown antibacterial, antitumor and cytotoxic activities. In order to obtain these icetexane diterpenes from in vitro cultures of S. corrugata, protocols were developed for callus production, micropropagation and shoot regeneration. Analysis of the regenerated shoots showed the presence of both icetexanes, micropropagated plants contained only fruticuline A, while the callus contained trace amounts of both diterpenes. The yield of fruticuline A was higher in the methanolic extract of regenerated shoots than in those of fresh leaves and fresh shoot tips. In addition to these diterpenes, the regenerated shoot and micropropagated plant extracts afforded seven other diterpenes, one icetexane and six abietanes, identified by UV, IR, 1D- and 2D-NMR and HR-MS analysis. Five compounds (19-acetoxy-7α-hydroxyroyleanone, 7β,20-epoxy-11,12,19-trihydroxyabieta-8,11,13-triene, 7,20-dihydrofruticuline A, 7β-acetoxy-20-hydroxy-19,20-epoxyroyleanone, 7β-ethoxy-6β,20:19,20-diepoxyroyleanone) were previously undescribed. Although the crude plant surface extract did not possess any antibacterial activity, methanolic extracts of in vitro tissues and two compounds, namely 7β-acetoxy-20-hydroxy-19,20-epoxyroyleanone and 7β-ethoxy-6β,20:19,20-diepoxyroyleanone, isolated in suitable amounts, were active in varying degrees against multidrug resistant clinical strains of Staphylococcus aureus, Staphylococcus epidermidis, Enterococcus faecalis and Enterococcus faecium, displaying MIC values ranging from 32, 64 to 128μg/mL.

ABSTRACTIntraguild interactions among carnivores have long held the fascination of ecologists. Ranging from competition to facilitation and coexistence, these interactions and their complex interplay influence everything from species persistence to ecosystem functioning. Yet, the patterns and pathways of such interactions are far from understood in tropical forest systems, particularly across countries in the Global South. Here, we examined the determinants and consequences of competitive interactions between dholes Cuon alpinus and the two large felids (leopards Panthera pardus and tigers Panthera tigris) with which they most commonly co‐occur across Asia. Using a combination of traditional and novel data sources (N = 118), we integrate information from spatial, temporal, and dietary niche dimensions. These three species have faced catastrophic declines in their extent of co‐occurrence over the past century; most of their source populations are now confined to Protected Areas. Analysis of dyadic interactions between species pairs showed a clear social hierarchy. Tigers were dominant over dholes, although pack strength in dholes helped ameliorate some of these effects; leopards were subordinate to dholes. Population‐level spatio‐temporal interactions assessed at 25 locations across Asia did not show a clear pattern of overlap or avoidance between species pairs. Diet‐profile assessments indicated that wild ungulate biomass consumption by tigers was highest, while leopards consumed more primate and livestock prey as compared to their co‐predators. In terms of prey offtake (ratio of wild prey biomass consumed to biomass available), the three species together harvested 0.4–30.2% of available prey, with the highest offtake recorded from the location where the carnivores reach very high densities. When re‐examined in the context of prey availability and offtake, locations with low wild prey availability showed spatial avoidance and temporal overlap among the carnivore pairs, and locations with high wild prey availability showed spatial overlap and temporal segregation. Based on these observations, we make predictions for 40 Protected Areas in India where temporally synchronous estimates of predator and prey densities are available. We expect that low prey availability will lead to higher competition, and in extreme cases, to the complete exclusion of one or more species. In Protected Areas with high prey availability, we expect intraguild coexistence and conspecific competition among carnivores, with spill‐over to forest‐edge habitats and subsequent prey‐switching to livestock. We stress that dhole–leopard–tiger co‐occurrence across their range is facilitated through an intricate yet fragile balance between prey availability, and intraguild and conspecific competition. Data gaps and limitations notwithstanding, our study shows how insights from fundamental ecology can be of immense utility for applied aspects like large predator conservation and management of human–carnivore interactions. Our findings also highlight potential avenues for future research on tropical carnivores that can broaden current understanding of intraguild competition in forest systems of Asia and beyond.

{"references": ["Ebrahim Hajidavalloo (2007), \"Application of evaporative cooling on the condenser of window-air-conditioner\", Appl. Therm. Eng., Volume 27, Issue 11-12, pp. 1937-1943, Available at https://doi.org/10.1016/j.applthermaleng.2006.12.014 .", "Chainarong Chaktranond and Peachrakha Doungsong (2010), \"An Experimental evaluation of energy saving in a split type air conditioner with evaporative cooling system\" Int. Transac. J.of Eng. Mgmt and Appl. Sci and Technol., Volume 1, Issue 1, pp. 9-18, Available at https://www.slideshare.net/drboon/01-01009018itjemast-chainarong .", "Vrachopoulos, M.G., Filios, A.E., Kotsiovelos, G.T. and Kravaritis, E.D (2005), \"Incorporated evaporative condenser\" Appl. Therm. Eng., Volume 27, Issue 5-6, pp. 823-828, Available at https://doi.org/10.1016/j.applthermaleng.2006.09.021.", "T. T. Chow, Zang Lin and X.Y. Yang (2002), \"Placement of condensing units of split-type air conditioners at low-rise residences\", Appl. Therm. Eng., Volume 22, Issue 13, pp. 1431-1444,Available at https://doi.org/10.1016/S1359-4311(02)00068-6", "Reshap Arora and Rajesh Sharma (2017), \"Experimental Investigation of Evaporative Condenser with Two Cooling Pads for Window Air-Conditioner\", An International Int. Journal J. of Eng. Sci., ISSN: 2320-0332, 2017; Volume 25, pp. 11-16, Available at http://ijoes.vidyapublications.com/paper/Vol25/02-Vol25.pdf", "M.M. Kulkarni, A.V. Khandagale, P.V. Singh, S.S. Choudhary, R.D. Sharma (2016), \"Experimental Investigations of Evaporative-Cooled Condenser Split Air Conditioner\", Int. J. of Eng. Sci. and Comput., ISSN: 2321 3361, Volume 6, Issue 5, pp. 5407-5411, DOI: 10.4010/2016.1324", "K. R. Aglawe, M. S. Matey and N. P. Gudadhe (2013), \"Experimental Analysis of Window Air Conditioner using Evaporative Cooling\", International Journal of Engineering Research & Technology, ISSN: 2278-0181, Volume 2, Issue 2, pp. 1-6, Available at https://www.ijert.org/research/experimental-analysis-of-window-air-conditioner-using-evaporative-cooling-IJERTV2IS2319.pdf"]} A unit for evaporative cooling in condenser of domestic air conditioner and its performance testing on effectiveness and reduction in power consumption. Evaporative cooling in condenser of Split A.C is achieved by spraying water on the fins of condensing unit at regular interval of time. Evaporative cooling will increase the rate of heat transfer and thus further sub cooled refrigerant will be obtained at the exit of condenser. Due to this sub cooling, refrigeration effect increases which results in increase in COP and reduces power consumption.

The amphipod crustaceans are an essential taxonomic group in the marine biodiversity assessment and response to environmental pollution or climate change. They play an important role in benthic food webs due to their high biomass, abundance and highly variable modes of feeding. However, our knowledge of the amphipod fauna is somehow incomplete and literature shows shortcomings regarding misidentification or lack of identification to species-level. A case of misidentification is herein reported and solved. The present paper aims at allocating Cheiriphotis geniculata K.H. Barnard, 1916 to the correct taxon Photis. The observations herein presented demonstrate that Cheiriphotis geniculata does fit the genus Photis and its nomenclature should be revised in future checklists and updated in the World Amphipoda Database. Photis geniculata is characterized by a gnathopod 2 with three processes on the palm of propodus and a geniculated dactylus. The present paper recommends Cheiriphotis geniculata is considered a nomen nudum and changed to the valid name Photis geniculata Barnard, 1935.

The study aims to identify the policy and practice discordance of ecotourism policy initiatives in India and to understand its implications. Field and participant observation were adopted for collecting data and reviewing secondary sources. Fennel's definition analysis was used to identify the discordance in definition leading to policy and practice of ecotourism based on destinations from five provincial states of India. The study could identify several implications of these discordances, such as the unbalanced emphasis on conservation, less emphasis on local benefits, less effective monitoring, the poor linkage between conservation and incentives, pressure on the local community, democratic deficit, minimal community involvement, reduced ecosystem benefits and meager enhancement in community building. The study made a few suggestive measures to overcome these discordances in tune with constitutional provisions, national development priorities, and sustainable development goals. The study found significance in the context of sustainable development parlance to strengthen ecotourism's policy framework and garner more appropriate development that suits the local conditions.