Article
Green & Sustainable Science & Technology
Tarun Sharma, Tapas Kumar Das, Pragati Pramanik Maity, Sunanda Biswas, Susama Sudhishri, Prabhu Govindasamy, Rishi Raj, Suman Sen, Teekam Singh, Amrit Kumar Paul, Arkaprava Roy, Subhash Babu, Neelmani Rathi
Summary: Wheat cultivation in India occupies a total area of 31.1 million hectares, with the major share in the North-western Indo-Gangetic Plains (IGP). To address the declining resource-use efficiency in the existing rice-wheat cropping system, the potential of a pigeon pea-wheat system (PWS) in the IGP is being considered. However, there is a lack of information on the impact of conservation agriculture (CA)-based PWS on weed dynamics, productivity, profitability, and resource-use efficiencies. A long-term study was conducted to investigate these aspects in wheat under different treatments. The results showed that CA-based treatments had a positive effect on weed diversity, grain yield, and net returns compared to the conventional till flatbed (CT) treatment.
Article
Agronomy
Qiushi Ning, Liangchao Jiang, Guoxiang Niu, Qiang Yu, Jushan Liu, Ruzhen Wang, Sha Liao, Jianhui Huang, Xingguo Han, Junjie Yang
Summary: The effects of mowing on soil microbial biomass under nitrogen enrichment are still not clear.
Article
Green & Sustainable Science & Technology
Yonghui Wang, Jin Li, Kaixuan Qian, Mao Ye
Summary: This study quantitatively analyzed the effects of flooding on the growth and species diversity of riparian forests along the Yarkant River and the Tarim River in northwest China. The results showed that flooding significantly increased indices for the lower reaches of the rivers and led to the appearance of new plant species. Flooding also improved the regeneration capacity and species diversity of desert riparian forests. These findings provide important information for water resource management in arid regions.
Article
Microbiology
Andre Moreira-Rosario, Claudia Marques, Helder Pinheiro, Joao Ricardo Araujo, Pedro Ribeiro, Rita Rocha, Ines Mota, Diogo Pestana, Rita Ribeiro, Ana Pereira, Maria Jose de Sousa, Jose Pereira-Leal, Jose de Sousa, Juliana Morais, Diana Teixeira, Julio Cesar Rocha, Marta Silvestre, Nuno Principe, Nuno Gatta, Jose Amado, Lurdes Santos, Fernando Maltez, Ana Boquinhas, Germano de Sousa, Nuno Germano, Goncalo Sarmento, Cristina Granja, Pedro Povoa, Ana Faria, Conceicao Calhau
Summary: This study found that hospitalized patients with moderate and severe COVID-19 have microbial signatures of gut dysbiosis, with gut microbiota diversity highlighted as a prognostic biomarker of COVID-19 severity. The results emphasize the importance of gut microbiota in determining the severity of COVID-19.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Environmental Sciences
Divesh Pangtey, Hitendra Padalia, Rahul Bodh, Ishwari Datt Rai, Subrata Nandy
Summary: Global decline in biodiversity requires systematic monitoring. This study assessed the performance of Rao's Q index derived from multi-date Sentinel-2 NDVI in estimating tree diversity in seasonal tropical forests. The approach showed good correlation with tree diversity, especially during the leaf flushing period.
GEOCARTO INTERNATIONAL
(2023)
Article
Environmental Sciences
Peng Dou, Xuan Wang, Yan Lan, Baoshan Cui, Junhong Bai, Tian Xie
Summary: Building inland waterways has significant impacts on the natural structure and ecosystem of riverbeds and riparian zones. Evaluating the damage to biological communities through the study of benthic macroinvertebrate communities can provide insights into the extent of these anthropogenic modifications.
Article
Forestry
Alejandra Alfaro Pinto, Juan J. Castillo Mont, David E. Mendieta Jimenez, Alex Guerra Noriega, Jorge Jimenez Barrios, Andrea Clavijo McCormick
Summary: This study characterized riparian tree communities along the Acome riverbank in Guatemala by identifying four main riparian communities and 115 tree species. The study emphasized the crucial role of these riparian tree communities in maintaining water quality, providing habitats for wildlife, and facilitating the movement and dispersal of species. This information is vital for the development of restoration strategies and management plans in the region.
Article
Environmental Sciences
Song Zhang, Kexin Li, Jinming Hu, Fang Wang, Danhong Chen, Zejin Zhang, Ting Li, Linfeng Li, Juan Tao, Dong Liu, Rongxiao Che
Summary: This study aimed to examine the assembly mechanisms of microbial communities and the sub-communities with different rarity along the Nu River. The results showed that the assembly of microbial sub-communities was mainly driven by drift and homogenizing dispersal with an increase in rarity. The contribution of stochastic and deterministic processes to the microbial community assembly was correlated with geographic distance and environmental factors, respectively.
JOURNAL OF SOILS AND SEDIMENTS
(2022)
Article
Water Resources
Anjana Ekka, Saket Keshav, Saket Pande, Pieter van der Zaag, Yong Jiang
Summary: This study examines the hydrological alterations resulting from reservoir construction and water abstraction in the upper Cauvery river basin in India. Using a landscape-based hydrological model, the study analyzes the impacts of dams on river flow regimes. The results show that reservoir impoundment and water abstractions have modified the natural flow regimes, particularly in terms of median monthly flow, 1-day minimum flow, and low pulses. These findings provide valuable insights for water managers to sustain natural flow regimes and contribute to the sustainable management of river basins in India.
JOURNAL OF HYDROLOGY-REGIONAL STUDIES
(2022)
Article
Forestry
Zezhi Yang, Qingtai Shu, Liangshi Zhang, Xu Yang
Summary: By combining satellite-based LiDAR and optical remote sensing, the method proposed in this research improves the accuracy of monitoring forest tree species diversity while considering data cost. The findings demonstrate that the synergistic approach increased the prediction accuracy of tree species diversity compared to single remote sensing variation models.
Article
Biodiversity Conservation
James L. Tsakalos, Stefano Chelli, Giandiego Campetella, Roberto Canullo, Enrico Simonetti, Sandor Bartha
Summary: This paper presents comspat, an R package that measures the number and diversity of species combinations, and helps to detect and interpret spatial associations and assembly mechanisms. The package provides two commonly used null models to analyze the observed spatial patterns.
Article
Forestry
Xin Jin, Xiaoxin Sun, Haixing Li, Danhui Zhao, Dong Li, Lei Wang, Xiuling Man
Summary: Wetland restoration efforts in Sanjiang Nature Reserve in Northeast China have shown that plant species composition and diversity can gradually recover through natural succession. However, a 25-year restoration is still insufficient for complete vegetation restoration, with only a 56% similarity index to the natural marsh.
JOURNAL OF FORESTRY RESEARCH
(2021)
Article
Fisheries
Thi K. L. Nguyen, Van H. Au, Thi C. T. Phan, Trung G. Tran, Truong G. Huynh, Ngoc U. Vu, Thanh P. Nguyen
Summary: A study was conducted to examine the seasonal variation of phytoplankton composition in the My Thanh River, which is an important water source for aquaculture. Monthly qualitative and quantitative samples of phytoplankton were collected at high and low tide. The results showed a diverse composition of 171 phytoplankton species, with diatoms being the most abundant and highest in species number. The algae composition varied with salinity and the water quality was moderately polluted.
ISRAELI JOURNAL OF AQUACULTURE-BAMIDGEH
(2023)
Article
Environmental Sciences
Xiaodong Zhang, Zhaoliang Song, Dongbo Zhang, Yuntao Wu, Lukas Van Zwieten, Shaobo Sun, Wenying Wang, Hongyan Liu, Yidong Wang, Hailong Wang
Summary: By conducting extensive field investigation and utilizing multiple statistical approaches, we mapped the distribution of soil organic carbon (SOC) in northern China's grasslands and explored its correlations with climatic factors, biological factors, human activity intensity (HAI), and soil physicochemical factors. Our findings revealed that soil chemical factors and soil physical factors were strongly correlated with SOC, while HAI had a significant negative impact on SOC. Unlike previous studies, we found that climatic factors indirectly affected SOC through their influence on biological factors. Soil physicochemical properties and HAI were identified as the dominant factors influencing SOC distribution in northern China's grasslands.
LAND DEGRADATION & DEVELOPMENT
(2023)
Article
Environmental Sciences
Agnieszka Nobis, Dominika Chmolowska, Tomasz H. Szymura, Arkadiusz Nowak, Marcin Nobis
Summary: This study investigates the influence of physicochemical properties of soil on the distribution of river corridor plant species in the large river valleys of Central Europe. The findings suggest that plots located in closer proximity to the river, characterized by higher soil exchangeable potassium content and lower altitudes, exhibit higher coverage of river corridor plant species. Meanwhile, in plots situated along anthropogenic linear landscape elements, higher coverage of river corridor plant species is associated with higher soil exchangeable potassium content and pH values.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Chemical
B. S. Madhukar, D. G. Bhadre Gowda, K. Hemalatha, R. Somashekar, Siddaramaiah
ADVANCES IN POLYMER TECHNOLOGY
(2018)
Article
Materials Science, Paper & Wood
Ranjitha Kempaiah, Gayathri Gurappa, Ritu Tomar, Matheus Poletto, Heitor Luiz Ornaghi Junior, Venkatasamy Annadurai, Rudrappa Somashekar
CELLULOSE CHEMISTRY AND TECHNOLOGY
(2020)
Article
Engineering, Electrical & Electronic
Mohammed Irfan, A. Manjunath, S. S. Mahesh, R. Somashekar, T. Demappa
Summary: Solid polymer electrolyte films composed of poly(vinyl alcohol) (PVA)/polyvinylpyrrolidone (PVP) doped with sodium fluoride (NaF) at different weight ratios were prepared and characterized. The addition of NaF salt decreased the crystallinity of the samples and increased the conductivity, while the dielectric constant decreased with frequency increase. Optical constants were found to depend on NaF concentration in the polymer blend system. Transference number measurement revealed that charge transport in the polymer blend films was predominantly due to ions. Electrochemical cells were fabricated and various cell parameters were determined for the samples.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Polymer Science
Guttikatte Kariappa Gowtham, Hanumanthappa Somashekarappa, Karthik Bharath, Rudrappa Somashekar
Summary: This study introduces a novel performance measure for polymer composites based on physical parameters, with the optimal dopant concentration determined through joint analysis of non-trivial correlations between physical parameters at different concentration levels. The measure is versatile for any chosen physical parameters and can be used for performance evaluation.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Nanoscience & Nanotechnology
Shameer Ahmed, Gunjan Baijal, Rudrappa Somashekar, Subramania Iyer, Vijayashree Nayak
Summary: Gold nanoparticles are emerging as promising radiosensitizers due to their high biocompatibility. Bimetallic nanoparticles, such as PEG-coated Au-Ag alloy nanoparticles, have shown enhanced anticancer activity compared to monometallic nanoparticles. These nanoparticles demonstrate potent in vitro radiosensitization and better CT contrast enhancement ability, suggesting their potential dual function as radiosensitizer and CT contrast agent against oral cancers.
INTERNATIONAL JOURNAL OF NANOMEDICINE
(2021)
Article
Physics, Multidisciplinary
G. K. Gowtham, G. Thejas Urs, S. Raghavendra, D. Mahadevaiah, H. Somashekarappa, R. Somashekar
Summary: Different forms of silk exhibit different nonlinear optical behaviors at 1064 nm, with cocoon and fiber forms showing saturable absorption and film form showing reverse saturable absorption. Functional data analysis reveals correlations between silk varieties and optical parameters, aiding in the identification of samples with the best properties.
Article
Materials Science, Multidisciplinary
V. V. Manju, Vinayakprasanna Narayan Hegde, S. Divakara, R. Somashekar
Summary: The structural and elastic properties of Suvin and MCU-5 cotton fibres were investigated using wide-angle X-ray data and various statistical methods in this study. The elastic constants were estimated and compared with experimental results, showing an acceptable correlation for both cotton varieties. Spatial images of elastic constants were obtained using the ELATE web application tool to explain the anisotropic properties of the fibres.
ADVANCES IN MATERIALS AND PROCESSING TECHNOLOGIES
(2022)
Article
Physics, Multidisciplinary
R. Akarsh, D. G. Raghavendra, M. Mahadevaiah, H. Somashekarappa, R. Somashekar
Summary: Polyvinyl alcohol/polyvinylpyrrolidone (PVA/PVP) composite films were prepared with copper nanoparticles, and their AC conductivity, dielectric permittivity, UV-visible, FTIR, and X-ray diffraction analyses were conducted. The study estimated DC conductivity, hopping potential, hopping length, and thermal conductivity using the power law of frequency-dependent AC conductivity. Functional analysis was also used to establish the structure-property relation in these composites.
INDIAN JOURNAL OF PHYSICS
(2021)
Proceedings Paper
Physics, Condensed Matter
G. K. Gowtham, Thejas G. Urs, H. Somashekarappa, R. Somashekar
DAE SOLID STATE PHYSICS SYMPOSIUM 2019
(2020)
Proceedings Paper
Physics, Condensed Matter
V. V. Manju, S. Divakara, Vinayakprasanna Narayan Hegde, R. Somashekar
DAE SOLID STATE PHYSICS SYMPOSIUM 2019
(2020)
Article
Multidisciplinary Sciences
B. N. Anantha Kumar, M. Ramegowda, M. B. Nandaprakash, H. Somashekarappa, R. Somashekar
SN APPLIED SCIENCES
(2020)
Article
Materials Science, Textiles
V. V. Manju, S. Divakara, Divakaran Karthik, R. Somashekar
INDIAN JOURNAL OF FIBRE & TEXTILE RESEARCH
(2020)
Proceedings Paper
Physics, Applied
V. V. Manju, S. Divakara, K. Byrappa, R. Somashekar
DAE SOLID STATE PHYSICS SYMPOSIUM 2018
(2019)
Article
Physics, Multidisciplinary
S. R. Madhuri, N. S. Namitha, M. B. Kusuma Urs, G. K. Gowtham, Thejas G. Urs, R. Somashekar
INDIAN JOURNAL OF PHYSICS
(2018)
Proceedings Paper
Nanoscience & Nanotechnology
K. S. Prashanth, S. S. Mahesh, M. B. Nanda Prakash, R. Somashekar, B. M. Nagabhushana
2018 6TH INTERNATIONAL CONFERENCE ON NANO AND MATERIALS SCIENCE (ICNMS 2018)
(2018)