Exploring allelochemicals for cleaner and sustainable agriculture: A bibliometric review on research trends, challenges and future prospective.

Allelopathic research is not getting the intended consideration because of the complexities involved in their isolation, identification, understanding their modes of action, interactions with other environmental factors, impacts on non-target organisms and exploration of their utility in diverse fields. Additionally, their variability and trace availability have presented hurdles in establishing future research utilities and their field applications. Exploring the historical context of allelopathic research is essential for obtaining a more profound understanding of the progression in this research domain and to identify the research gaps and potential future prospectives. Therefore, the current bibliometric review aims to examine the research advancements, trends, hotspots, research gaps and to identify future prospectives in allelopathic research. A Scopus database search was carried out to collect the bibliometric data using the combination of multiple search strings in advance search option. The outcomes of this study revealed a total of 5427 published articles, with an average of 19.12 citations per article. Despite the increasing trend in research and publications on allelopathy/allelochemicals over the last decade, the majority of allelopathic research remains focused on investigating novel allelochemicals and their potential for weed management. Other crucial considerations like their phytotoxicity and ecotoxicity, selectivity for crop growth, interactions with herbicides and their derivatives, biochemical signalling, identification of germplasm in allelopathic plants, inducing allelopathic trait into enhanced cultivars, their ultimate fate in the open environment are sparsely investigated. It is anticipated that this review will draw greater attention to some overlooked domains within allelopathic research.

Ultimate fate and possible ecological risks associated with atrazine and its principal metabolites (DIA and DEA) in soil and water environment.

Atrazine (AT) is a triazine herbicide widely used to control weeds in several crops. De-isopropylatrazine (DIA) and de-ethylatrazine (DEA) are two of the eight primary metabolites produced by AT breakdown in soil and water. The physico-chemical properties of the soil determine their final fate. So, this study aimed to assess the function of clay loam and sandy loam soils in determining their ultimate fate and the potential ecological risks to non-target species during their persistence in soil and transportation to water bodies. The soil in pots was spiked with standard solutions of AT, DEA, and DIA at 0.3 and 0.6 mg/kg for the persistence study. The leaching potential was determined by placing soils in Plexi columns and spiking them with 50 and 100 µg standard solutions. Liquid-liquid extraction was used to prepare the samples, which were then analyzed using GC-MS/MS. The dynamics of dissipation were first-order. AT, DEA and DIA disappeared rapidly in sandy loam soil, with half-lives ranging from 6.2 to 8.4 days. AT and its metabolites had a significant amount of leaching potential. In sandy loam soil, leaching was more effective, resulting in maximal residue movement up to 30-40 cm soil depth. The presence of a notable collection of residues in leachate fractions suggests the potential for surface and groundwater contamination. In particular, DEA and DIA metabolites caused springtail Folsomia candida and earthworm Eisenia fetida to have longer and greater unacceptable risks. If the residues comparable to the amount acquired in leachate fractions reach water bodies, they could cause toxicity to a variety of freshwater fish, aquatic arthropods, amphibians, and aquatic invertebrates. Future studies should take a more comprehensive approach to evaluate ecological health and dangers to non-target species.

Study of internet addiction and its association with depression and insomnia in university students.

INTRODUCTION: Use of internet has increased exponentially worldwide with prevalence of internet addiction ranging from 1.6% to 18 % or even higher. Depression and insomnia has been linked with internet addiction and overuse in several studies. AIMS AND OBJECTIVES: Present study has looked in to pattern and prevalence of internet addiction in university students. This study has also explored the association of internet addiction with depression and insomnia. MATERIAL AND METHODS: In this cross sectional study 954 subjects were enrolled who had been using internet for past 6 months. Information regarding pattern of use and socio demographic characteristics were recorded. Internet addiction Test (IAT), PHQ-9,and insomnia Severity Index (ISI) were applied to measure internet addiction, depression and insomnia respectively. RESULTS: Among 954 subjects, 518 (60.59%) were male and 376 (39.41%) were female with mean age of 23.81 (SD ± 3.72). 15.51% study subjects were internet addicts and 49.19% were over users. Several parameters including graduation level, time spent per day on line, place of internet use, smoking and alcohol had significant association with internet addiction. Internet addiction was predominantly associated with depression and insomnia. CONCLUSION: Internet addiction is a rising concern among youth. Several parameters including gender, time spent on line, alcohol, smoking predicts higher risk of internet addiction. Depression and insomnia are more common in internet addicts and overusers.

The usefulness of crossword puzzle as a self-learning tool in pharmacology.

INTRODUCTION: Pharmacology is perceived as a volatile subject as it's difficult to recall and recite the core of the subject. Enriching the learning environment through incorporation of a variety of teaching and learning strategies and methods yields enhanced learning. Crossword puzzles provide expansion of vocabulary, stimulate thinking capacity, boost confidence, and fasten up the learning capacity; hence, the present study was conducted to investigate the usefulness of crossword puzzle as an innovative self-learning tool in pharmacology. METHODS: This prospective study was conducted among 5th semester students of the second professional MBBS course. A total of 139 students participated in this study and were evaluated with formative examination and feedback questionnaire. Permission was taken from Institutional Ethics Committee for the study. A crossword puzzle consisting of 32 questions on endocrine pharmacology was prepared and divided into two sections: the across section had 17 questions and the down section contained 15 questions. The data were analyzed, using Graph Pad Software and presented as percentage of the responses. RESULTS: On average, out of 32 questions, one mark each, the students scored 52.69% and all students responded correctly on questions on the topic of hormonal contraceptives. 75.5% of the students had an enjoyable experience and the majority of them agreed that it helped them enhance their knowledge of drugs, remember diseases and drug names, and overall learning about the topic. They were also of the opinion that this should be inculcated in pharmacology curriculum. CONCLUSION: Incorporation of crossword puzzles, as an adjunct tool, was useful as majority of the students reported that this improved their attitude of learning, thereby improving their performance.