Journal of Science Innovations and Nature of Earth
Not a member yet
252 research outputs found
Sort by
Emotional Labor in the Food and Beverage Sector: Impacts, Challenges, and Organizational Interventions
No full textThe Food and Beverage (F&B) sector of the hospitality industry is characterized by high levels of guest interaction and performance-driven emotional expression. This research paper explores the phenomenon of emotional labor—defined as the regulation of emotional expressions to meet organizational expectations—as a central but underexamined component of F&B service roles. Drawing upon Arlie Hochschild’s foundational framework, the study investigates how surface acting, deep acting, and genuine expression affect employee mental health. Findings indicate that surface acting, the most prevalent form in fast-paced environments, is strongly correlated with emotional exhaustion, burnout, anxiety, depression, and reduced job satisfaction. The paper further examines how emotional labor contributes to high turnover rates and diminished employee retention. Through a review of empirical studies and industry case analyses, the research proposes evidence-based organizational interventions such as Emotional Intelligence training, empathetic leadership, supportive workplace culture, fair compensation, and mental health initiatives. The study concludes that recognizing and managing emotional labor is vital for sustaining employee well-being and enhancing the overall quality of service in the hospitality sector. These insights offer a strategic roadmap for organizations aiming to balance guest satisfaction with long-term workforce sustainability
Role of Chitosan as a Natural Elicitor in Inducing Systemic Resistance against Plant Pathogens
Get PDFChitosan is a biopolymer of natural origin produced by modification of chitin. Chitin is abundantly found in cell walls of fungi, shells of crustaceans and insect exoskeleton. Chitin to chitosan transformation involves removal of acetyl groups from the chitin structure. The deacetylation process converts chitin into chitosan. Chitosan is a biodegradable and nontoxic biopolymer. In agriculture, chitosan has gained popularity as a natural elicitor that stimulates the plant\u27s own defence system without directly killing pathogens. Instead of acting as a pesticide, chitosan acts as immunity booster in plants, allowing them to defend themselves against a variety of diseases. This review focusses on chitosan\u27s role in inducing systemic defence mechanisms in plants, as well as the underlying physiological and molecular responses triggered by chitosan application.
Physicochemical Profiling of Urban Water Contaminants in Aligarh: Health Risk Assessment of Emerging Environmental Pollutants
Get PDFUrban water contamination constitutes one of the most significant threats to public health and environmental sustainability, especially in rapidly growing cities like Aligarh. The present study investigates the physicochemical characteristics of urban water contaminants with Aligarh at its focus, with special focus on emerging pollutants like pharmaceuticals, personal care products, heavy metals, and industrial effluents. For the research, water samples were taken from rivers and groundwater and supplemented by municipal supply sources. The analyses were carried out considering the concentration of the given pollutants. Standard analytical techniques used in the analysis included atomic absorption spectrometry, high-performance liquid chromatography, and mass spectrometry for quantification of the contaminants. It considers various sources of pollution, including domestic sewage, industrial discharge, and agricultural runoff, and identifies their influence on water quality. Based on the risk assessment arising from the levels of pollutants detected, the activity considered their toxicity, persistence, and bioaccumulative potential. The results are alarming, ranging from the high concentration levels of heavy metals like lead and mercury to the levels of pharmaceuticals and personal care products above the permissible limits. High risks to human health and the aquatic ecosystem posed by emerging pollutants in urban water systems urgently call for integrated water management strategies and more stringent regulations. It recommends future monitoring and policy development in protecting public health and making water resources sustainable in Aligarh
Understanding Mosquito Biodiversity in India: Key Genera, Ecology, and Disease Transmission – A Review
Get PDFMosquitoes are among the most medically important insects in India, serving as vectors for a wide range of diseases, including malaria, dengue, chikungunya, filariasis, and Japanese encephalitis. The Indian subcontinent, with its diverse ecosystems ranging from Himalayan foothills to coastal plains supports a rich diversity of mosquito fauna. This review provides a comprehensive account of mosquito diversity across India, focusing on the major genera: Anopheles, Aedes, Culex, Mansonia, and Armigeres. Each genus exhibits unique ecological adaptations, breeding habitats, biting behavior, and vectorial capacities. Anopheles species are predominantly rural and forest-dwelling, while Aedes thrive in urban settings and artificial containers. Culex and Mansonia are common in polluted or semi-aquatic environments, and Armigeres are emerging as secondary vectors in some regions. The review also highlights the ecological factors influencing mosquito distribution, including climate change, deforestation, urbanization, and water management practices. Special attention is given to recent shifts in species ranges and the emergence of new vector hotspots. Despite extensive research, several regions and species remain under-studied, particularly in the northeastern and central parts of India. There is a pressing need for integrative taxonomic approaches, molecular surveillance, and ecological modeling to fully understand mosquito biodiversity and vector potential. By synthesizing current knowledge, this article aims to aid entomologists, public health officials, and policy makers in designing effective, location-specific vector surveillance and control programs. Understanding mosquito diversity is not only essential for disease prevention but also for maintaining ecological balance in India\u27s varied landscapes
Historical Evolution of Transgender Participation in Sports: Global and Indian Perspectives
Get PDFSports are a mirror of society. For many years, sports accepted only two categories – male and female. This created barriers for transgender people, who were often excluded. Slowly, athletes and courts started challenging these rules. Globally, the International Olympic Committee (IOC) and other bodies made new policies to include transgender players. In India, the Supreme Court’s 2014 judgment (NALSA case) gave legal identity to transgender people, opening doors for participation in different fields, including sports. This paper explains the history of transgender participation in sports, the challenges faced, and the progress made at both global and Indian level
Phytochemical screening of Datura metel L. extracts: A medicinal plant growing at Braj region of western Uttar Pradesh
Get PDFPlants are regarded as a chemical factory and a rich source of secondary metabolites because they contain a wide variety of beneficial chemical compounds. Medicinal plants offer a wide variety of bioactive chemicals, especially those belonging to the Solanaceae family. The major purpose of the current work was to analyze the phytochemical from the leaves, fruits, and stem extract of Datura metel and the existence of bioactive components using a range of phytochemical tests. D. metel, is a highly medicinal important, short-woody shrub plant from family Solanaceae growing at Braj region of western Uttar Pradesh. Disease free parts; leaves fruits & stem were collected, cleaned with tap water, dried in shade and coarsely powdered. Stem fractions were extracted by soxhlet extraction with acetone and water. Phytochemical analysis was examined in aqueous, ethanol, chloroform, petroleum ether and acetone extract. The significant result obtains in aqueous, ethanol, chloroform and acetone extracts of leaves, fruits and stem which was riches in alkaloids carbohydrates, glycosides, phenol, phytosteroids, flavones, terpenoids, cardioglycosides, sugar, amino acid & proteins. However, petroleum ether did not showe presence of carbohydrates, glycosides, phenol, tannins, anthraquinones, cardioglycosides, sugar, saponins, amino acid, & proteins. Chloroform extract also shows negative signal in anthraquinones, coumarins and quinones. The current study emphasizes the importance of investigating D. metel extract, which is rich source of bioactive phytochemicals and plays a significant role in its antifungal and antimicrobial properties, supporting its traditional medicinal uses and suggesting commercial applications in the pharmaceutical and nutraceutical industries, as well as further investigations for researcher
Quantum Dot and Perovskite Solar Cells: Physics of Charge Transport
Get PDFQuantum dot (QD) and halide perovskite solar cells (PSCs) represent two fast-evolving routes to high-efficiency, low-cost photovoltaics. Both systems share exceptional optical absorption and tunable bandgaps, but differ in dominant charge-transport physics: QD films usually show hopping-like, ligand-limited transport with strong effects from interparticle coupling and ligand chemistry, while perovskites often exhibit band-like transport with long diffusion lengths but are highly sensitive to ionic motion and defect-mediated trap recombination. This review synthesizes the charge-generation, transport, recombination, and interfacial processes that control device performance in QD and perovskite solar cells, summarizes common characterization methods (SCLC, TRPL, transient absorption, impedance spectroscopy, KPFM), and discusses strategies—ligand engineering, passivation, band-alignment design, and transport-layer optimization to mitigate loss mechanisms and improve collection efficiency. Key open questions and promising research directions are highlighted.
Indigenous Bio-Control Agents against Root-Knot Nematodes and Fungal Pathogens in Bundelkhand Soils
Get PDFSoil-borne pests and pathogens, particularly root-knot nematodes (Meloidogyne spp.) and phytopathogenic fungi, are major constraints to crop productivity in the semi-arid Bundelkhand region of India. The present study evaluated the potential of indigenous bio-control agents isolated from Bundelkhand soils for the sustainable management of Meloidogyne spp. and associated fungal pathogens under laboratory, greenhouse, and field conditions. A total of 36 indigenous microbial isolates were obtained from rhizosphere soils, comprising 21 fungal and 15 bacterial isolates. Among these, Trichoderma spp. (33.3%), Pochonia chlamydosporia (13.9%), Purpureocillium lilacinum (11.1%), Bacillus spp. (22.2%), and Pseudomonas spp. (19.5%) were predominant. In vitro assays revealed that P. chlamydosporia inhibited egg hatching of Meloidogyne spp. by 78.6% and caused 65.4% juvenile mortality, while Bacillus subtilis resulted in 72.9% juvenile mortality. Dual culture tests showed maximum mycelial growth inhibition of Fusarium oxysporum (71.4%), Rhizoctonia solani (66.2%), and Macrophomina phaseolina (62.8%) by Trichoderma harzianum. Greenhouse experiments demonstrated a significant reduction in root gall index in tomato from 4.6 in untreated controls to 1.2 following application of P. chlamydosporia, along with a reduction in disease incidence from 46% to 12%. Field trials in chickpea further confirmed the efficacy of indigenous isolates, where P. chlamydosporia reduced nematode populations from 980 to 420 per 200 cc soil and increased yield from 11.4 to 16.8 q ha⁻¹. These findings validate the effectiveness of indigenous bio-control agents as eco-friendly and region-specific tools for integrated management of nematode–fungal disease complexes in Bundelkhand agriculture.
Systematic Review on Indian Antidiabetic Medicinal Plants
Get PDFIncidences and related mortality are rising for diabetes mellitus, one of the world\u27s leading health issues across the world. Inadequate blood sugar control has detrimental effects on human health. Conventional antidiabetic medications are effective, but they also have unavoidable side effects. Conversely, medicinal plants might serve as a different source of antidiabetic substances. With an emphasis on preclinical and clinical research, examples of therapeutic herbs that may help lower blood sugar levels. The profile of physiologically active chemicals in each plant matrix, their coordinated and combined activity, and the possible advantages are examined
Endophytes Unveiled: Microbial Allies in Plant Growth and Stress Management
Get PDFEndophytes are microscopic creatures that live in plants\u27 inner tissues and don\u27t seem to inflict any harm there. In particular, they improve nutrient uptake, produce growth-regulating hormones, and make plants more resistant to drought, salt, and severe temperatures, all of which contribute to plant development. Moreover, these microbes help defend plants against pathogens and herbivores by generating antimicrobial substances and activating plant defense mechanisms. Their functions in nitrogen fixation, phosphate mobilization, and siderophore secretion also contribute significantly to plant growth and yield. With the advent of molecular and genomic tools, the intricate relationships between endophytes and their host plants are being increasingly understood, highlighting their potential in eco-friendly agriculture. Utilizing endophytes as natural inoculants or biological control agents offers a promising alternative to synthetic agrochemicals, paving the way for sustainable and resilient farming systems. This review highlights the pivotal role of endophytes in enhancing plant performance and supports their broader application in contemporary crop management