In this issue
p. 1930

Is Biological Diversity Act hampering biodiversity research?
p. 1931 | Shouche, Yogesh

Harold Maxwell-Lefroy and the management of pestiferous insects in urban environments in the early decades of the 20th century
p. 1933 | Raman, Anantanarayanan

Rationalization of the S. S. Bhatnagar Prizes scheme using CWTS Leiden 2019 data
p. 1934 | Prathap, Gangan

Science Last Fortnight
p. 1936

Molecular systematics
p. 1940 | Pandey, Arun K.

Challenges for effective implementation of National Resource Efficiency Policy 2019
p. 1941 | Babu, K. Lenin; Jagadeesh, S.

A wild encounter to ensure a food secure 2050
p. 1942 | Das, Basabdatta; Bhattacharya, Swati Gupta; Sengupta, Samik; Bhattacharya, Kashinath

India’s second Biennial Update Report: five key takeaways
p. 1944 | Pradhan, Shanal; Goswami, Gautam

Point source-driven seasonal hypoxia signals habitat fragmentation and ecosystem change in River Ganga
p. 1947 | Pandey, Jitendra; Jaiswal, Deepa; Pandey, Usha

Yellow pan traps as an additional gadget for collecting sandhopper amphipods
p. 1949 | Rajmohana, K.; Trivedi, J. N.

P. C. Vaidya’s contributions to mathematics and physics
p. 1951 | Shashikumara, A. A.; Kumbar, Rashmi
doi: 10.18520/cs/v117/i12/1951-1957

Need for a clear techno-legal definition of blue gold: the river floodplains in India
p. 1958 | Soni, Vikram; Shekhar, Shashank; Jain, Vikrant
doi: 10.18520/cs/v117/i12/1958-1961

Foreword
p. 1962 | Arunan, E.

A brief history of the periodic table
p. 1963 | Rao, C. N. R.
doi: 10.18520/cs/v117/i12/1963-1966

Lead kindly light: spectroscopy and the periodic table
p. 1967 | Prasad, S. Krishna
doi: 10.18520/cs/v117/i12/1967-1970

The elements of life
p. 1971 | Ghosh, Sourav; Mugesh, Govindasamy
doi: 10.18520/cs/v117/i12/1971-1985

Dmitri Mendeleev (1834–1907) – Creator of the greatest table of elements
p. 1986 | Rao, Indumati
doi: 10.18520/cs/v117/i12/1986-1989

Positron annihilation spectroscopic studies of sintering effect on sol–gel-synthesized SiO₂ wide band gap semiconductor nanocrystals
p. 1990 | Das, Anjan
doi: 10.18520/cs/v117/i12/1990-1998

Numerical analysis of the gas-particle two-phase flow in a multistep dust collector
p. 1999 | Yao, Jiafeng; Yu, Minghao; Wang, Yaoyao; Chen, Bai; Wang, Zheng; Wu, Hongtao
doi: 10.18520/cs/v117/i12/1999-2005

Carbon sequestration potential of mango orchards in India
p. 2006 | Ganeshamurthy, A. N.; Ravindra, V.; Rupa, T. R.
doi: 10.18520/cs/v117/i12/2006-2013

Carbon sequestration potential of agroforestry systems in the Indian arid zone
p. 2014 | Tanwar, S. P. S.; Kumar, Praveen; Verma, Archana; Singh, Akath; Lal, Kanhaiya; Patidar, M.; Mathur, B. K.; Bhatt, R. K.
doi: 10.18520/cs/v117/i12/2014-2022

The influence of nitrogen in nutrient solution on growth, nutrient uptake and enzymatic activity of Anacardium othonianum Rizz.
p. 2023 | Bessa, Layara A.; Moreira, Marialva A.; Silva, Fabiano G.; Vitorino, Luciana C.; Megguer, Clarice A.
doi: 10.18520/cs/v117/i12/2023-2033

Development of optimal weight algorithm for efficient application of dual tree complex wavelet transform for resolution enhancement of satellite images
p. 2034 | Garg, Akanksha; Murugan, Deepak; Singh, Dharmendra
doi: 10.18520/cs/v117/i12/2034-2039

A smoothing motion method for high-speed cable-driven parallel camera robots
p. 2040 | Wei, Huiling; Qiu, Yuanying; Su, Yu; Sheng, Ying
doi: 10.18520/cs/v117/i12/2040-2048

Numerical messages of plants under different stresses
p. 2049 | Mbezi, M. Teuma; Zachée, Ambang; Fouda, H. Ekobena; Timoleon, C. Kofané
doi: 10.18520/cs/v117/i12/2049-2052

Infusing microbial consortia for enhancing seed germination and vigour in pigeonpea (Cajanus cajan (L.) Millsp.)
p. 2052 | Raja, K.; Anandham, R.; Sivasubramaniam, K.
doi: 10.18520/cs/v117/i12/2052-2058

Who We Are And How We Got Here: Ancient DNA and the New Science of the Human Past. David Reich
p. 2059 | PITCHAPPAN, R. M.

Volcanic and Igneous Plumbing Systems: Understanding Magma Transport, Storage, and Evolution in the Earth’s Crust. Steffi Burchardt (ed.)
p. 2060 | Rao, N. V. Chalapathi

Comprehensive Remote Sensing, Volume 7: Atmosphere. Editor in Chief: Shunlin Liang, Volume Editor: Mitchell D. Goldberg
p. 2062 | Singh, R. P.; Pradhan, Rohit

T. N. Seshan (1932–2019)
p. 2064 | Siddhartha, V.; Rajan, Y. S.; Singh, Jai P.

Oliver Howe Lowry – the ‘incorrigible addict’ of micro-analytical methods
p. 2067 | Konwarh, Rocktotpal

List of Institutional Members
p. 2069

Acknowledgements
p. 2076

Faculty Recruitment - SRI SRI UNIVERSITY
p. 2081

DIRECTOR - Department of Atomic Energy
p. 2081

Call for Proposals – National Radar Meteorology Programme
p. 2082

DST Postdoctoral Fellowship in Nano Science and Technology - Jawaharlal Nehru Centre for Advanced Scientific Research
p. 2082

Visiting Scientist Programme 2020 - Indian National Science Academy
p. 2083

JNCASR invites Applications/Nominations for the following awards instituted by C. N. R. Rao Education Foundation
p. 2083

Project Fellows - University of Mysore
p. 2083

Social Innovators - Biotechnology Industry Research Assistance Council
p. 2084

CONFLUENCE - Science Gallery
p. 2085

Workshop on Science Writing 10–17 March 2020, Thiruchirappalli
p. 2088