Patliputra University (PPU) is a collegiate public state university located in Patna, Bihar, India. It was established by an act of the state legislature in 2018. As a collegiate university, its main functions are divided between the academic departments of the university and affiliated colleges. The university has 125 affiliated colleges including twenty-five constituent colleges, two engineering colleges and a dozen pharmacy colleges spread over Patna and Nalanda district.
Light pollution which results from excessive nighttime artificial lighting has become a major environmental threat that damages aquatic ecosystems. Urban areas together with residential spaces and commercial buildings create constant light which interrupts natural light and dark cycles that especially harm fish species which use vision to find food and escape danger and mate. The research investigates how artificial light at night (ALAN) impacts Oryzias melastigma through a controlled experimental design which measures their behavior and stress responses and overall health. The researchers established four treatment groups which included a control group that operated under a natural photoperiod of 13 hours light and 11 hours dark together with three experimental groups which consisted of a low-intensity ALAN group that received 10 lux white LED light and a high-intensity group that received 50 lux and a spectral ALAN group that received 10 lux blue light (450 nm) from 10:00 pm to 6:00 am. The study demonstrates how different light conditions affect fish behavior and physiological responses by comparing various light conditions which help develop sustainable methods to manage aquatic ecosystems.
Chromene–sulfonamide derivatives have attracted significant interest for their promising antimicrobial properties. In this study, a series of N-substituted chromene–aryl sulfonamides were synthesized using a green and efficient two-step protocol. In the first step, multifunctional amino chromenes were obtained via a one-pot, three-component reaction under solvent-minimized conditions. This reaction involved substrates containing –OH, –CHO, and –CN groups, catalyzed by l-proline, a biodegradable and non-toxic organocatalyst. In the second step, the amino chromenes were converted to sulfonamide derivatives by reaction with p-toluenesulfonyl chloride using pyridine as both catalyst and solvent. The synthesized compounds were evaluated for antibacterial activity against Escherichia coli, Salmonella typhimurium, and Staphylococcus aureus. Several derivatives exhibited notable antibacterial potency, particularly against both Gram-negative and Gram-positive strains. Structure–activity relationship analysis revealed that electron-donating and -withdrawing substituents on the aryl aldehyde ring significantly influenced biological activity. Molecular docking studies further supported the experimental results, demonstrating strong binding affinities of key compounds with bacterial targets. Among them, CS6 and CS10 showed the highest binding energies, with ΔG values ranging from − 7.56 to − 40.56 kcal/mol. This work highlights an environmentally benign synthetic approach for producing bioactive chromene-based sulfonamide derivatives. The combination of green chemistry and pharmacological relevance suggests potential applications in antimicrobial drug development.
In the present study, the electric modulus and dielectric properties of Ce-doped CoFe2O4 are investigated over a wide frequency range (100-10(6) Hz) and temperature range (50-300 degrees C). The electric modulus analysis of all samples reveals a grain boundary effect at higher temperatures. The stretching parameter (beta) for all samples increases with increasing temperature suggests homogenous nature of all samples is increased with increasing temperature. The variable-range hopping (VRH) conduction is confirmed by the temperature-dependent relaxation frequency calculated from the frequency-dependent imaginary part of the electric modulus in all samples. The characteristic temperature increases from 3.35 & times; 10(8) to 5.15 & times; 10(8) K as the Ce content increases from x = 0.05 to 0.15. The high characteristic temperature (similar to 10(8) K) indicates strong localization of charge carriers and a low density of states near the Fermi level. The frequency-dependent dielectric constant is described by the universal dielectric response (UDR). The temperature-dependent exponent (s) in the UDR suggest dielectric relaxation followed by the small-polaron tunneling mechanism. The frequency-dependent dielectric loss and tangent loss show similar behavior for all samples.
ABSTRACT This manuscript summarises the 5‐year journey of the International Microbiology Literacy Initiative (IMiLI) and its South Asian Regional Centre (IMiLI‐SAC). The main focus of the centre has been to propagate microbiology literacy and at the same time translate microbiome science into society. IMiLI‐SAC played an important role in engaging audiences from diverse backgrounds across India and beyond by conducting lectures, organising workshops and outreach programs. In addition, it has also translated many educational resources in regional and cultural languages for wider presentation. IMiLI‐SAC played a pivotal role in connecting microbial science with real‐world issues like sustainable development, human health, dietary choices, lifestyle, preventive healthcare and planetary health. This initiative practically translates the role of microbes in different contexts using examples like microbiome studies in India, extremophiles and their biotechnological applications, and bioremediation of contaminated sites. It emphasises the important role of microbes as essential players to sustain life on earth, and changing the perception of society that views microbes as harmful or pathogens. It also supports the concept of ‘food as medicine’ and ‘antibiotic stewardship’. However, there are certain challenges like financial constraints, resources limitations and not as much awareness. Yet, IMiLI‐SAC proposes that coordinated and multilingual community engagement will address this gap between science and society. The long‐lasting vision of IMiLI‐SAC is to incorporate microbiology literacy into school curricula, policies and public health to have a sustainable and healthy world.
ABSTRACT Advancement in developing smart electronic devices is the need of modern civilization. Schottky diodes, these days, are considered to be one those smart devices due to their enormous applications in diverse field. Metal–ligand coordination compounds having hybrid behavior appeared as an excellent member to serve the field of semiconductor. Structural consistency, unique electronic behavior, and tunable band gap are the key aspects of such compounds. In this perspective, fabrication of Schottky diodes utilizing Zn(II)‐based coordination complexes can be considered as highly significant. Owing to the high abundance of zinc, which makes the implementations of zinc‐based materials cost‐effective, Zn(II)‐complexes can be widely utilized to construct of Schottky diodes. Moreover, coordination complexes based on zinc do not impart high toxicity. Due to these reasons, construction of Schottky diode with Zn(II)‐based coordination complexes can be commercially viable.
