Doaba College, Jalandhar is a multifaculty postgraduate co-educational institution of Northern India which serves the Doaba region. The college has been accredited by the National Assessment and Accreditation Council, an autonomous body of the University Grants Commission of India (UGC).Doaba College, Jalandhar was established on 1 January 1941 by Sh. Bindraban Sondhi, Rai Bahadur Badri Dass, Sh. Jagan Nath Mittal and Acharaya Lajja Vati. They followed Arya Samaj and the Spartan Freedom Fighters who laid the foundation of Doaba College to promote the study of classical Sanskrit, Hindi and the teachings of Vedic Dharma, Gandhian values and to promote the philosophy of Maharishi Dayanand Saraswati.Mehta Jaiminee Jee of Arya Samaj laid the foundation of Doaba college in 1897 and converted the Doaba school into the Doaba College, however because of financial reasons, it did not continue after unknown period .Mehta Jaiminee Jee was the first principal.Their mission was to impart education to the less-privileged and economically weaker section of students of this area. A small building was constructed in 1941 and thereafter the expansion of the college was undertaken in 1943. Sh. Bindraban Sondhi collected funds for the college. Ever since, the institution has been under the leadership of earlier Rai Bahadur Badri Das, Seth Stya Paul, and now Sh. Chander Mohan.Chief-Editor, Daily Vir Pratap and the President of Arya Shiksha Mandal. The college provides courses in Computer Education & I.T. Biotechnology, Commerce & Management, Journalism & Mass Communication, Tourism and Hotel Management in addition to traditional courses in the faculties of Science, Commerce and the Arts.This college has a Commerce and Business Management block, Media and I.T. block, Audio-Video Media Studio, an English Language Lab, Arts block, postgraduate block, laboratories (Computer Science, Physics, Chemistry, Bio-technology and Food technology labs)..
We investigate the partonic structure of the $ρ$ meson, the lightest spin-$1$ vector meson, within the light-front quark model (LFQM). To explore the sensitivity to model assumptions, we employ two distinct types of spin wave functions in the LFQM. Using light-front helicity wave functions, we derive explicit expressions for the leading-twist and subleading-twist quark parton distribution functions (PDFs), and evolve the leading-twist PDFs to higher scales with next-to-leading order (NLO) Dokshitzer--Gribov--Lipatov--Altarelli--Parisi (DGLAP) evolution. We have also calculated the Mellin moment from the evolved PDFs using a simple neural network frame and compared with available theoretical predictions. Furthermore, we compute the full set of nine leading-twist transverse-momentum-dependent distributions (TMDs) for the valence quark in the $ρ$ meson, including three tensor TMDs that arise from spin-$1$ tensor polarization of the hadron. Positivity constraints for the PDFs and TMDs are examined within this framework. Our findings highlight the crucial role of tensor polarization in shaping the three-dimensional partonic structure of vector mesons.
In this paper, we study the internal structure of light pseudoscalar mesons using spin-improved power-law wave functions. We chose the pion and the kaon for our work. We use the standard quark-quark correlation functions to calculate the distribution amplitudes (DAs), parton distribution functions (PDFs), transverse momentum parton distribution functions (TMDs), and generalized parton distribution functions (GPDs) at zero skewness and form factors. We present all the above distribution functions through the overlap of light-front wave functions (LFWFs). We use leading-order Efermov-Radyushkin-Brodksy-Lepage (ERBL) equations for DAs and next-to-leading-order (NLO) Dokshitzer-Gribov-Lipatov-Altarelli-Parisi (DGLAP) equations for PDFs to evolve them to higher scales. We find that only 41% of the longitudinal momentum fraction is carried by the quark and antiquark of both pion and kaon at 16GeV2. The vector form factors for both the pion and the kaon are found to be in good agreement with the experimental data. Similarly, the electromagnetic charge radii are found to be 0.668fm and 0.704fm for pion and kaon, respectively.
Abstract Heavy metal pollution in soils poses serious environmental challenges, and conventional remediation methods are often expensive and harmful to ecosystems. Chelate-assisted phytoremediation offers a greener alternative by using plants, enhanced with chelating agents, to extract metals from contaminated sites. Among candidate plants, Brassica species such as B. juncea and B. napus stand out for their fast growth, high biomass, and tolerance to metal stress. This review explores the effectiveness of Brassica in chelate-assisted phytoremediation, focusing on their ability to absorb metals and other contaminants. It examines the role of commonly reported chelating agents in enhancing metal uptake and discusses associated morphological and physiological changes in Brassica plants. The paper highlights key findings and current challenges to optimize the use of Brassica species in sustainable soil remediation. This paper also identifies gaps in current research, including limited field studies and potential ecological risks associated with chelate use, and proposes directions for future studies.
The present study reports the potential of flavonoid biosynthesis pathway intermediate metabolite naringin for salt-stress mitigation of radish (Raphanus sativus L.). We have earlier reported naringenin, another flavonoid intermediate metabolite, mediated enhanced growth and stress mitigation in mungbean. In the present study, 50, 100, and 150 mM NaCl exposure was noticed to significantly inhibit the shoot-root elongation, carbohydrate, and protein content in radish. The exposure of 0.8 and 1.0 mM naringin was observed to rescue the morphological and biochemical traits of salt-stressed radish significantly. Naringin supplementation evidently enhanced the antioxidant potential of NaCl-treated radish to regulate the H2O2 and MDA accumulation, thus mitigating oxidative stress. The present study, thus, for the first time documents the abiotic stress-tolerance potential of naringin. Further, naringin-mediated abiotic stress mitigating studies can be investigated to identify naringin as a potent alternative to chemical fertilizers.
Atrazine (ATZ), a widely used broad-leaved weed management chemical in agriculture, with a half-life of 30-740 days, poses a threat to the ecosystem. Its residue is found in various levels of soil and aquatic ecosystems. In this study, three new strains were identified and used to treat effectively, thereby reducing toxicity and rapid degradation. Bacillus mycoides strain (P2), Pseudomonas sp. strain(P3), and Pseudomonas furukawaii (P6). The degradation efficiency was found to follow the order P3 > P2 > P6. Over a twelve-day experiment, all strains demonstrated atrazine utilization, with a half-life period ranging from 65.53 to 102.32 days by using pseudo-first-order kinetics. Response surface methodology was employed to optimize the biodegradation parameters, including atrazine dosage, pH, and temperature, for all three strains. The investigation revealed that the optimum conditions for atrazine degradation by all strains were pH 7.4, temperature 32 +/- 2 degrees C, and concentration 100 mg/L. Gas chromatography-mass spectrometry results identified the major degradation products of atrazine, including Deisopropylatrazine (DIA), Deethylatrazine (DEA), and Cyanuric acid (CNA) at RT 6.46, 12.22, and 14.22, respectively, also closely align with the predicted statistical design model. All three isolated strains exhibited hydrolysis of Atrazine, suggesting the presence of intracellular Atrazine chlorohydrolase enzymes. Genotoxicity studies on the degradation products depicted toxicity in the order Atrazine>DEA>DIA>CNA. These atrazine-biodegrading isolates show promise as effective remediators for atrazine-contaminated agricultural soils and crop fields in terms of laboratory efficacy and practical application, as well as for environmental cleaning processes involving other pesticides.
