Bøger af Shiv Nandan Sah

Careless use of antibiotics and mutations due to changing environment are the main causes of development of resistance in pathogens. Therefore, old and common diseases are not cured by use of respective antibiotics and have become new threat in the community. The emergence of drug resistant organisms in both hospital and community is subject of major concern.Antibiotic resistance complicates the treatments of various infections and is associated with a higher patient morbidity, higher costs of re-evaluations and re-treatments, higher rates of hospitalisation and greater use of broad-spectrum antibiotics.Therefore, it is necessary to search new antibiotic to solve the problems of infectious diseases. About 80 percent antibiotics are extracted from actinomycetes,this book,therefore, provides ideas for screening of antibiotic producing actinomycetes from various habitats and their characterisation as well as production of antibiotics and their extractions by using suitable organic solvents.This book can be a good friend for students and researchers who are involving in the field of antibiotics, one of the great discoveries for humankind through microbiology.

Research Paper (postgraduate) from the year 2019 in the subject Biology - Botany, grade: First, Tribhuvan University (Central Campus of Technology,Dharan,Sunsari,Nepal), course: B.Sc. Botany, language: English, abstract: This paper analyses the ethnic plants of the Tharu people in the Ramdhuni-2 Sunsari district in Nepal, their various uses and the socio-cultural aspect of Tharus and explores those plant uses. Participatory Rural Appraisal (PRA) and the Interview-Method were used for the collection of ethnobotincal data from the studied area. In the present study, 37 plants species were collected from the study area under 25 families. Out of 37 plants 32 were found to be dicot and 5 were found to be monocot. 37 species were distributed in 25 families. The indigenous Tharus were using these plant species for various purposes, such as medicine, food, fodder, ornaments, materials etc. Among those plants 25 plants are used as medicine, 21 plants are used as fodder, followed by 10 plants as food and edible fruits and so on. Among the 37 species, trees and herbs were dominant upon grasses, shrubs, climbers and creepers, followed by shrubs. 24 species were used for their leaves. 29 species were found to be useful having more than one value. Ethnobotany refers to the study of an ethnic plant of particular people living in a particular place. Ethnobotany accommodates lists, details and description of all those plants regarding their various uses. This study has been done in the Ramdhuni-2, Sunsari district in the Tharu community.