VOLUME 8 ISSUE 9, 2020 VOLUME 8 ISSUE 9, 2020 1. An evaluation study onthe efficacy of Carica Papaya Leaf juice extract juice in the improvement of platelet count among selected Dengue patients. PAGE NO: 1-11 DOI:10.37897.QUADERNS.2020.V8I9.20.40068 2. Time-Cost Trade-off Analysis for Building Construction Projects Varun Pratap Singh, B.P.Mudgal IPS College of Technology & Management, Gwalior (India) PAGE NO: 12-22 DOI:10.37897.QUADERNS.2020.V8I9.20.40069 3. A simple PDF Converter using Android with built in editing features Anas Abbas, Safdar Tanweer, Syed Sibtain Khalid, Naseem Rao SEST, Jamia Hamdard, New Delhi, India. PAGE NO: 23-31 DOI:10.37897.QUADERNS.2020.V8I9.20.40070 4. IOT BASED COVID-19 SAFETY SYSTEM Abhinav Gulati, Pratik Chaudhary, Nikhil Yadav, Tapan Rajput Ghaziabad , Uttar Pradesh , India. Tania Gupta, Shailendra Bisariya ABES Engineering College, Ghaziabad , Uttar Pradesh , India. PAGE NO: 32-38 DOI:10.37897.QUADERNS.2020.V8I9.20.40071 5. The Vibrational Spectroscopy of 8OCB (4-n-octyloxy-4′- cyanobiphenyl) and 9OCB (4'-nonyloxy-biphenyl-4-carbonitrile) Liquid Crystal Molecules study using Density Functional Theory Vinod Kumar Singh1, Shivpati Degree College,ShohratGarh,SiddharthNagar (U.P.) 272205 INDIA R.K.Singh, A.K. Dwivedi M. L. K. P. G. College Balrampur (U.P.) 271201 INDIA Mirtunjai Mishra Babasaheb Bhimrao Ambedkar University, VidyaVihar, Raebareli Road, Lucknow (U.P.) 226025 INDIA PAGE NO: 39-44 DOI:10.37897.QUADERNS.2020.V8I9.20.40072