Indian Science Cruiser https://www.i-scholar.in/index.php/ISC <p>Indian Science Cruiser is a scientific journal of international standard. It is published 6 times a year, at present. Contributory articles are single-blind peer reviewed and plagiarism checked by Crossref system powered by ithenticate. Authors are invited to submit thought provoking, attractive articles on education, environment, science, lifestyle and culture with the perspective of traditional trends and trends of present-day globalization to the email ID: iseckol1980@gmail.com. There is no cost for publication of an article in this journal. Author Guideline is available at the website: www.iseckolkata.com.</p><p>Articles published in this journal are abstracted by: i-Scholar, j-Gate, Crossref-USA, Indian Science Index, etc. Institute of Science, Education and Culture (ISEC) receives financial support for publication of this journal from the Ministry of Science and Technology, Science &amp; Engineering Research Board (SERB), Govt. of India, New Delhi and also from Department of Higher Education, Science &amp; Technology and Biotechnology, Govt. of West Bengal.</p> Institute of Science, Education and Culture, Kolkata en-US Indian Science Cruiser 0970-4256 Lady Bluetooth and the Torpedoes https://www.i-scholar.in/index.php/ISC/article/view/223535 No Abstract. Anil Kumar Ghosh 2023-03-01 2023-03-01 37 River Systems of West Bengal – A Review https://www.i-scholar.in/index.php/ISC/article/view/223481 Numerous rivers flow across the state of West Bengal. The tributaries and distributaries of these rivers form a river network from north to south and from west to east all along the state. Among these rivers, which have water throughout the year, the problem is relatively less. During the dry season, pollution levels are high for factories or municipalities located along rivers with knee-dip water. Recently, 13 river stretches in West Bengal have reached such levels of water pollution that they are not suitable for outdoor bathing. It can be concluded that the water quality of most of the river stretches in West Bengal is quite poor and sometimes below permissible limit. Gautam Kumar Das 2023-03-31 2023-03-31 37 Evaluating Cooling Coil Performance under Varying Operating Conditions https://www.i-scholar.in/index.php/ISC/article/view/223482 The present work deals with an experimental analysis of the performance of a direct expansion coil under various operating conditions. Behaviour of the cooling coil vis-à-vis the input parameters and the psychrometric properties is assessed with the help of experimentation with changing ambient conditions and graphical presentation of the results. Results depict an optimum value of the by-pass factor indicating the best performance of the coil in both spring and summer. There is an upward trend of the by-pass factor with a gradual rise in the air temperature at different inlet openings. Dependence of the cooling coil performance on volume flow rate and climatic variation is found to be quite significant and needs to be kept in mind in practice. Swastika Talukder Sanchayan Mukherjee Spandan Samanta Manaswita Karmakar Priyanshu Roy 2023-03-31 2023-03-31 37 Nonparametric Tests for Potability of Damodar River from Small Sample https://www.i-scholar.in/index.php/ISC/article/view/223483 The Damodar River, originating from Jharkhand and flowing through West Bengal, is essential for the survival of the surrounding biosphere community and the population living along its banks, which includes people from different cultural and ethnic backgrounds. The government and non-governmental organizations have been working to improve the quality of the river, with the Damodar Valley Corporation instrumental in addressing the natural flow of the river and its tributaries. Biochemical Oxygen Demand (BOD) is used to indicate the organic quality of water, and the BOD values measured at regular intervals along the course of the river reveal a persistently high level of pollution, mainly caused by untreated chemical effluent dumping by multiple industrial companies located along the river. Nilabhra Rohan Das 2023-03-31 2023-03-31 37 Utilization of Fermentation Process for Production of Two Popular Classes of Antibiotics https://www.i-scholar.in/index.php/ISC/article/view/223438 The gradual resistance to existing antibiotics can be overcome with the use or clinical testing of novel natural products as continuing source of chemical diversity. Often natural products are difficult to be synthesized commercially by chemical methods since their structures are very complex with a number of asymmetric centers. Microbial fermentation remains the only way to isolate wide range of antibiotics. In this article, authors discuss about the production process of two popular classes of antibiotics, cephalosporins and glycopeptides, utilizing fermentation techniques. Yield and quality of the active pharmaceutical ingredient can be improved by using genetically engineered strains and supplying proper nutrition to the fermentation media. Santarupa Thakurta Payel Sen 2023-03-31 2023-03-31 37 A Recent Study on Various Arthropod Pests from Aquatic Plant Farms of West Bengal, India https://www.i-scholar.in/index.php/ISC/article/view/223479 The numbers of aquatic ornamental plant growers and hobbyists in India are increasing because of the introduction of new hybrid lotus (Nelumbo sp) and waterlilies (Nymphaea sp) mainly from South East Asian countries.Many insect pests are damaging different parts of the plants which are also causing economic loss.Among them the larvae of Leaf cutter moth (Elophilaobliteralis), thrips (Thrips flavus, T. tabaci), spider mites (Oligonychus spp. and Tetranychus spp.), caterpillarsare common and tough to eradicate from the aquascapes and the nursery pools of the aquatic farms. Shampa Sarkar 2023-03-31 2023-03-31 37 Environmental Deterioration of Damodar River, West Bengal https://www.i-scholar.in/index.php/ISC/article/view/223480 Among a few scattered forest patches in Damodar valley, the forest covering the entire Susunia Hills is important for its species diversity of floral assemblages. Along the river course of Damodar, the main industrial area of West Bengal has developed. Though the sewage effluent from such industries empties into the Damodar River after treatment, the water of Damodar River is unfit for use even for outdoor bathing due to the presence of faecal coliform bacteria and higher values of biochemical oxygen demand in the river water exceeding the permissible limit. Damodar river water is probably polluted by the mixing of the surface runoffs from the non-point sources. Gautam Kumar Das 2023-03-31 2023-03-31 37 Late Prof. Bikash Chandra Sinha (1945 – 2023) https://www.i-scholar.in/index.php/ISC/article/view/223536 No Abstract. Purabi Mukherji 2023-03-01 2023-03-01 37 Late Prof. C. R. Rao, F.R.S (1920 – 2023) https://www.i-scholar.in/index.php/ISC/article/view/223537 No Abstract. Purabi Mukherji 2023-03-01 2023-03-01 37 Sensors with Plants Comprehend City Climate https://www.i-scholar.in/index.php/ISC/article/view/223538 No Abstract. Anil Kumar Ghosh 2023-03-01 2023-03-01 37