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  Subjects -> SCIENCES: COMPREHENSIVE WORKS (Total: 374 journals)
Showing 1 - 200 of 265 Journals sorted alphabetically
Accountability in Research: Policies and Quality Assurance     Hybrid Journal   (Followers: 19)
Acta Nova     Open Access   (Followers: 2)
Acta Scientifica Malaysia     Open Access   (Followers: 1)
Acta Scientifica Naturalis     Open Access   (Followers: 4)
Adıyaman University Journal of Science     Open Access  
Advanced Science     Open Access   (Followers: 16)
Advanced Science, Engineering and Medicine     Partially Free   (Followers: 8)
Advanced Theory and Simulations     Hybrid Journal   (Followers: 5)
Advances in Research     Open Access  
Advances in Science and Technology     Full-text available via subscription   (Followers: 18)
African Journal of Science, Technology, Innovation and Development     Hybrid Journal   (Followers: 7)
Afrique Science : Revue Internationale des Sciences et Technologie     Open Access   (Followers: 1)
AFRREV STECH : An International Journal of Science and Technology     Open Access   (Followers: 3)
Alfarama Journal of Basic & Applied Sciences     Open Access   (Followers: 12)
American Academic & Scholarly Research Journal     Open Access   (Followers: 4)
American Journal of Applied Sciences     Open Access   (Followers: 22)
American Journal of Humanities and Social Sciences     Open Access   (Followers: 13)
Anales del Instituto de la Patagonia     Open Access  
Applied Mathematics and Nonlinear Sciences     Open Access   (Followers: 2)
Arab Journal of Basic and Applied Sciences     Open Access  
Arabian Journal for Science and Engineering     Hybrid Journal   (Followers: 1)
Archives Internationales d'Histoire des Sciences     Partially Free   (Followers: 5)
Archives of Current Research International     Open Access  
ARPHA Conference Abstracts     Open Access   (Followers: 1)
ARPHA Proceedings     Open Access  
Asian Journal of Advanced Research and Reports     Open Access  
Asian Journal of Scientific Research     Open Access   (Followers: 2)
Asian Journal of Technology Innovation     Hybrid Journal   (Followers: 5)
Australian Field Ornithology     Full-text available via subscription   (Followers: 1)
Australian Journal of Social Issues     Hybrid Journal   (Followers: 6)
Bangladesh Journal of Scientific Research     Open Access  
Beni-Suef University Journal of Basic and Applied Sciences     Open Access   (Followers: 1)
Berichte Zur Wissenschaftsgeschichte     Hybrid Journal   (Followers: 11)
Bilge International Journal of Science and Technology Research     Open Access  
Bioethics Research Notes     Full-text available via subscription   (Followers: 15)
BJHS Themes     Open Access   (Followers: 1)
Bulletin de la Société Royale des Sciences de Liège     Open Access  
Bulletin of the National Research Centre     Open Access  
Chain Reaction     Full-text available via subscription  
Ciencia Amazónica (Iquitos)     Open Access  
Ciencia en su PC     Open Access   (Followers: 1)
Ciencia Ergo Sum     Open Access  
Ciência ET Praxis     Open Access  
Communications Faculty of Sciences University of Ankara Series A2-A3 Physical Sciences and Engineering     Open Access  
Comunicata Scientiae     Open Access  
Conference Papers in Science     Open Access  
Configurations     Full-text available via subscription   (Followers: 11)
COSMOS     Hybrid Journal   (Followers: 1)
Crea Ciencia Revista Científica     Open Access  
Current Issues in Criminal Justice     Hybrid Journal   (Followers: 14)
Current Research in Geoscience     Open Access   (Followers: 6)
Data     Open Access   (Followers: 4)
Dhaka University Journal of Science     Open Access  
Discover Sustainability     Open Access   (Followers: 5)
Einstein (São Paulo)     Open Access  
Ekaia : EHUko Zientzia eta Teknologia aldizkaria     Open Access  
Emergent Scientist     Open Access  
Enhancing Learning in the Social Sciences     Open Access   (Followers: 7)
Enseñanza de las Ciencias : Revista de Investigación y Experiencias Didácticas     Open Access  
Entramado     Open Access  
Entre Ciencia e Ingeniería     Open Access  
Epiphany     Open Access   (Followers: 1)
Ethiopian Journal of Education and Sciences     Open Access   (Followers: 5)
European Online Journal of Natural and Social Sciences     Open Access   (Followers: 4)
European Scientific Journal     Open Access   (Followers: 7)
Evidência - Ciência e Biotecnologia - Interdisciplinar     Open Access  
Exchanges : the Warwick Research Journal     Open Access   (Followers: 1)
Experimental Results     Open Access   (Followers: 2)
Fides et Ratio : Revista de Difusión Cultural y Científica     Open Access  
Fontanus     Open Access   (Followers: 1)
Forensic Science Policy & Management: An International Journal     Hybrid Journal   (Followers: 252)
Frontiers in Climate     Open Access   (Followers: 5)
Frontiers in Science     Open Access   (Followers: 1)
Fundamental Research     Open Access  
Futures & Foresight Science     Hybrid Journal   (Followers: 1)
Gaudium Sciendi     Open Access  
Ghana Studies     Full-text available via subscription   (Followers: 15)
Global Journal of Pure and Applied Sciences     Full-text available via subscription  
Globe, The     Full-text available via subscription   (Followers: 4)
HardwareX     Open Access  
Heidelberger Jahrbücher Online     Open Access  
Heliyon     Open Access   (Followers: 1)
History of Science and Technology     Open Access   (Followers: 6)
Hoosier Science Teacher     Open Access  
Indian Journal of History of Science     Hybrid Journal   (Followers: 3)
Instruments     Open Access  
Interciencia     Open Access  
International Annals of Science     Open Access  
International Journal of Advanced Multidisciplinary Research and Review     Open Access  
International Journal of Applied Science     Open Access  
International Journal of Engineering, Science and Technology     Open Access  
International Journal of Network Science     Hybrid Journal   (Followers: 3)
International Journal of Social Sciences and Management     Open Access   (Followers: 2)
International Journal of Technology Policy and Law     Hybrid Journal   (Followers: 10)
International Science and Technology Journal of Namibia     Open Access   (Followers: 2)
International Scientific and Vocational Studies Journal     Open Access  
Investiga : TEC     Open Access  
Investigación Joven     Open Access  
Investigacion y Ciencia     Open Access   (Followers: 1)
Iranian Journal of Science and Technology, Transactions A : Science     Hybrid Journal  
iScience     Open Access   (Followers: 2)
Issues in Science & Technology     Free   (Followers: 8)
Ithaca : Viaggio nella Scienza     Open Access  
J : Multidisciplinary Scientific Journal     Open Access  
Jaunujų mokslininkų darbai     Open Access   (Followers: 3)
Journal de la Recherche Scientifique de l'Universite de Lome     Full-text available via subscription  
Journal of Chromatography & Separation Techniques     Open Access   (Followers: 9)
Journal of Advanced Research     Open Access   (Followers: 2)
Journal of Analytical Science & Technology     Open Access   (Followers: 5)
Journal of Applied Science and Technology     Full-text available via subscription   (Followers: 1)
Journal of Applied Sciences and Environmental Management     Open Access   (Followers: 1)
Journal of Big History     Open Access   (Followers: 4)
Journal of Composites Science     Open Access   (Followers: 4)
Journal of Diversity Management     Open Access   (Followers: 4)
Journal of Indian Council of Philosophical Research     Hybrid Journal  
Journal of Institute of Science and Technology     Open Access  
Journal of King Saud University - Science     Open Access  
Journal of Mathematical and Fundamental Sciences     Open Access  
Journal of Negative and No Positive Results     Open Access  
Journal of Responsible Technology     Open Access  
Journal of Science and Technology     Open Access   (Followers: 2)
Journal of Science and Technology     Open Access   (Followers: 1)
Journal of Science and Technology (Ghana)     Open Access   (Followers: 3)
Journal of Science and Technology Policy Management     Hybrid Journal   (Followers: 1)
Journal of Science Foundation     Open Access   (Followers: 1)
Journal of Scientific Research and Reports     Open Access   (Followers: 1)
Journal of Shanghai Jiaotong University (Science)     Hybrid Journal  
Journal of Social Science Research     Open Access   (Followers: 2)
Journal of Taibah University for Science     Open Access  
Journal of the Ghana Science Association     Full-text available via subscription   (Followers: 3)
Journal of the History of Ideas     Full-text available via subscription   (Followers: 168)
Journal of the Indian Institute of Science     Hybrid Journal   (Followers: 4)
Journal of the Royal Society of New Zealand     Hybrid Journal   (Followers: 49)
Journal of the South Carolina Academy of Science     Open Access  
Journal of Unsolved Questions     Open Access  
Jurnal Sains Dasar     Open Access  
Jurnal Teknosains     Open Access  
Karaelmas Science and Engineering Journal     Open Access  
Karbala International Journal of Modern Science     Open Access  
Kennedy Institute of Ethics Journal     Full-text available via subscription   (Followers: 10)
Logo STI Science, Technology and Innovation     Open Access   (Followers: 14)
Malawi Journal of Science and Technology     Open Access   (Followers: 6)
Maskana     Open Access  
MethodsX     Open Access  
Mètode Science Studies Journal : Annual Review     Open Access  
Modern Applied Science     Open Access   (Followers: 1)
Momona Ethiopian Journal of Science     Open Access   (Followers: 5)
National Academy Science Letters     Hybrid Journal   (Followers: 3)
National Science Review     Hybrid Journal   (Followers: 1)
Natural Sciences     Open Access  
Natural Sciences Education     Hybrid Journal   (Followers: 1)
Naturen     Full-text available via subscription  
Nepal Journal of Science and Technology     Open Access  
Network Science     Hybrid Journal   (Followers: 4)
Nordic Journal of Science and Technology     Open Access   (Followers: 2)
Nordic Studies in Science Education     Open Access   (Followers: 3)
Nova     Open Access  
Open Conference Proceedings Journal     Open Access  
Open Journal of Applied Sciences     Open Access  
Orbis Cógnita : Revista Científica     Open Access   (Followers: 2)
Patterns     Open Access   (Followers: 9)
People and Nature     Open Access   (Followers: 4)
Población y Desarrollo - Argonautas y caminantes     Open Access  
Politique et Sociétés     Full-text available via subscription   (Followers: 1)
Portal de la Ciencia     Open Access  
Proceedings of the Indian National Science Academy     Full-text available via subscription   (Followers: 5)
Proceedings of the Linnean Society of New South Wales     Full-text available via subscription   (Followers: 2)
Proceedings of the Royal Society of Queensland, The     Full-text available via subscription  
QScience Connect     Open Access  
Quantum Science and Technology     Hybrid Journal   (Followers: 15)
Rafidain Journal of Science     Open Access  
Rehabilitation Research, Policy, and Education     Hybrid Journal   (Followers: 2)
Reportes Científicos de la FaCEN     Open Access  
Reports in Advances of Physical Sciences     Open Access  
Research Ideas and Outcomes     Open Access  
Research Integrity and Peer Review     Open Access  
Research Policy : X     Open Access   (Followers: 3)
Respuestas     Open Access  
Revista Bases de la Ciencia     Open Access  
Revista Cientifica Guillermo de Ockham     Open Access  
Revista Conhecimento Online     Open Access  
Revista Crítica de Ciências Sociais     Open Access  
Revista de Ciencia y Tecnología     Open Access  
Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales     Open Access  
Revista de la Universidad del Zulia     Open Access  
Revista Politécnica     Open Access  
Revista Tecnológica     Open Access  
Revista UniVap     Open Access  
SAINSTIS     Open Access  
Sainteknol : Jurnal Sains dan Teknologi     Open Access  
Sci     Open Access  
Science     Full-text available via subscription   (Followers: 5080)
Science & Diplomacy     Free   (Followers: 3)
Science Advances     Free   (Followers: 44)
Science and Technology     Open Access   (Followers: 2)
Science Heritage Journal     Open Access  
Science World Journal     Open Access  
Science, Technology and Arts Research Journal     Open Access   (Followers: 1)
ScienceRise     Open Access  
Sciences du jeu     Open Access  

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Journal of Institute of Science and Technology
Number of Followers: 0  

  This is an Open Access Journal Open Access journal
ISSN (Print) 2467-9240
Published by Nepal Journals Online Homepage  [155 journals]
  • In-situ Assessment of Natural Radioactivity Concentrations and Hazard
           Indicators in the Mining Area of Lalitpur, Nepal

    • Authors: Devendra Raj Upadhyay, Pramod Adhikari, Bal Vikram Khatri, Suffian Mohamad Tajudin, Himali Kalakhety, Raju Khanal
      Pages: 1 - 11
      Abstract: Urban construction materials predominantly originate from mining sites, raising concerns about the associated natural radioactivity and its potential health impacts. This work focuses on assessing the distribution of three natural radionuclides and associated radiological indicators in the South Lalitpur mining area in Nepal. A portable gamma spectrometer information system (PGIS-2) was employed for in-situ measurement of natural radionuclide concentrations. The mean activity concentrations of 238U, 232Th, and 40K were found to be 85.82 ± 40.63 Bq kg−1, 104.87 ± 30.42 Bq kg−1, and 1257.47 ± 304.36 Bq kg−1, respectively. Radiological hazard parameters were computed and compared with global averages, revealing a radium equivalent activity (Raeq) mean of 332.62 ± 63.08 Bq kg−1, slightly below the global average. The average absorbed gamma radiation dose rate in the air was 155.94 ± 29.09 nSv hr-1, over twice the world average. Indoor and outdoor annual effective dose rates, excess lifetime cancer risks, and annual gonadal dose equivalents were slightly higher than world averages. Additional radiological indices were computed, indicating that most estimated parameters exceeded global averages. Multivariate statistical analysis was applied to the dataset. The study suggests that in-situ measurements of these radiological parameters in mining areas are essential, as most mean values were above global averages, emphasizing the need for environmental safety and awareness in mining regions.
      PubDate: 2024-07-12
      DOI: 10.3126/jist.v29i1.60793
      Issue No: Vol. 29, No. 1 (2024)
       
  • Seasonal Variations in Macroinvertebrate Diversity and Community
           Composition in Kamala River of Churia Range, Nepal

    • Authors: Ram Devi Tachamo-Shah, Deep Narayan Shah, Anusha Pandey, Junu Maharjan, Tanya M Doody, Susan Cuddy
      Pages: 13 - 24
      Abstract: Macroinvertebrates have long been utilized in the ecological assessment of streams and rivers as they respond to multiple stressors present in aquatic environments. However, the application of macroinvertebrates as bioindicators in the assessment of hydro-morphologically degraded rivers in Nepal is limited. Therefore, we studied the macroinvertebrate diversity and community composition in 10 sites along the Kamala River and its tributaries, one of the hydro-morphologically degraded rivers in the Churia range of central Nepal, during the winter and spring seasons of 2019. The elevation of the sites ranges from 60 m asl to 636 m asl. Twelve water quality parameters and three hydrological parameters were measured for each site in addition to macroinvertebrates data. Water temperature (winter- 19.3 ± 2.2 ⁰ C; spring- 31.3 ± 2.3 ⁰ C), pH (winter- 8.7 ± 0.5, spring- 7.4 ± 0.5), turbidity (winter-3.0 ± 3.8 NTU, spring- 22.9 ± 22.8 NTU), total alkalinity (winter-156 ± 70.7 mg/L, spring- 33.8 ± 6.0 mg/L), phosphate (winter-3.0 ± 1.8 mg/L, spring- 0.4 ± 0.3 mg/L) and river discharge (winter- 2.01 ± 0.75 m3/s, spring- 0.77 ± 0.28 m3/s) differed significantly between seasons (p<0.05). In total 62 taxa representing 42 families and 13 orders for winter season and 69 taxa representing 49 families and 18 orders of macroinvertebrates were recorded for spring season. NMDS revealed two distinct clusters based on macroinvertebrates abundance data for the river. Ephemeroptera, in particular Baetis spp., Torleya coheri and Caenis sp., and Trichoptera- Chuematopsyche spp. were the major taxa contributing to dissimilarity across sites between seasons.
      PubDate: 2024-07-12
      DOI: 10.3126/jist.v29i1.52941
      Issue No: Vol. 29, No. 1 (2024)
       
  • Structural Asymmetry in two Thallium-based Alloys: Tl-Mg and Tl-Na

    • Authors: Narayan Panthi, Indra Bahadur Bhandari, Ishwar Koirala
      Pages: 25 - 33
      Abstract: Different modelled equations are used to analyze the variation of the thermodynamic, microscopic and surface characteristics between the Tl-Mg and Tl-Na liquid alloys at 1000 K by considering TlNa2 and TlMg2 complexes. The Thermodynamic properties are studied under Quasi-Chemical Approximation and the agreement between theoretical and experimental results of thermodynamic properties about their melting temperatures verifies the validity of model. The transport and surface properties of the alloys are studied by Kaptay and Butler models respectively. From the theoretical observations, it is shown that the Tl-Mg alloy is more interacting than that of the Tl-Na alloy and exhibits an ordering nature below 0.3 concentration of Tl, but above this concentration Tl-Na alloy shows more ordering tendency. The Tl-Mg has a higher viscosity than the Tl-Na alloy within whole concentration of Tl. On the basis of surface properties, Na segregates on the surface within entire concentration of Tl in Tl-Na alloy whereas Mg segregates on the surface below 0.35 concentration of Tl in Tl-Mg alloy.
      PubDate: 2024-07-12
      DOI: 10.3126/jist.v29i1.53511
      Issue No: Vol. 29, No. 1 (2024)
       
  • Intensifying Haze and Disappearing Dense Fog in Winter at Tribhuvan
           International Airport, Kathmandu: Impacts in Aviation

    • Authors: Bhogendra Kathayat, Arnico Kumar Panday, Binod Pokharel, Narayan Prasad Chapagain
      Pages: 35 - 45
      Abstract: In winter, Tribhuvan International Airport (TIA) in Kathmandu, Nepal, is badly affected by poor visibility conditions due to the occurrence of thick haze and dense fog. In this study, we examined the microclimatic behaviors (e.g., consecutive duration and onset/dispersal) of the winter fog. Alongside, we analyzed the trend in the occurrence of fog, dense fog, and winter haze in TIA from a historic global hourly climatological dataset (1976–2022) from TIA. We found that radiation fog in the valley is mostly short spells having a consecutive duration of less than an hour (~86% of fog, ~95% of dense fog). The onset of fog starts most favorably in the early morning (05:45–09:00 am) and disperses mostly before noon. To ascertain the synergetic effect of enhanced natural and anthropogenic forcing, urbanization, and meteorological changes on winter haze and fog, we assessed their trend for the same period. There was a marked change in visibility around the year 2000 together with important changes in humidity and dew point depression. We observed an upward trend of winter haze frequency (2.36% day/year, at 0.001 level of significance (α)) and fog frequency (0.46% day/year, at α = 0.05) in regime-I (1976–2000). Whereas the trend of winter haze flattened to 0.36% day/year (at α = 0.05) and dense fog declined at the rate of 1.28% day per annum (at α = 0.01) in regime-II (2001–2022). By careful examination of all plausible climatological drivers of the change (relative humidity, temperature, wind speed, and dew point depression), we found strong evidence of decreasing humidity and increasing dew point depression after the year 2000. Effective air pollution and urbanization control measures are imminent to lessen the adverse impact of the increased frequency of haze and fog at the country’s major international airport, TIA.
      PubDate: 2024-07-12
      DOI: 10.3126/jist.v29i1.56933
      Issue No: Vol. 29, No. 1 (2024)
       
  • Biological Activities and Annotation of Bioactive Principle by Mass
           Spectrometry in the Root Extract of Boerhavia diffusa

    • Authors: Keshav Bhattarai, Indira Pandey, Khaga Raj Sharma
      Pages: 47 - 58
      Abstract: Boerhavia diffusa is a well-known plant for ethnomedical uses. The plant is well known for its antioxidant and antidiabetic properties. Therefore, in addition to the antioxidant and antidiabetic properties of this plant, the present study focuses on exploring antibacterial properties, and metabolites present in Boerhavia diffusa. The preliminary phytochemistry was studied by the colour differentiation method. The phenolic and flavonoid content of the plant extracts was calculated using the Folin-Ciocalteu phenol and aluminum chloride colorimetry methods. Similarly, to find out the radical scavenging capacity of the available samples, one of the reliable methods (DPPH assay) was conducted. To evaluate the antidiabetic property, α-amylase and α-glucosidase inhibition were conducted by colorimetry methods. Results of phytochemical screening indicate that the plant is rich in metabolites including alkaloids, flavonoids, and terpenoids. Along with this, root extracts were found to be rich in total phenolic and flavonoid content with calculated values of 40.84±1.90 mg GAE/g and 37.01±1.61 mg QE/g, respectively. Similarly, among three methanolic extracts of root, stem, and leaf; the root showed the highest antioxidant activity with IC50 value 152.83±4.85 µg/mL. Among different solvent fractions of the stem of the same plant, the most potential antioxidant activity was shown by ethyl acetate fractions with an IC50 value of 82.96 ± 2.23 µg/mL. Additionally, no extracts and fractions were significantly active against α-amylase and α-glucosidase inhibition except ethyl acetate fraction. This fraction exhibited the enzyme inhibition property with IC50 value of 493.91±2.53 µg/mL for α-amylase and 96.31±10.65 µg/mL for α-glucosidase. To identify the chemical composition, mass spectrometry-based isolation and molecular annotation were carried out and metabolites like 3,9,10-trimethoxy-13-methyl-5,6-dihydroisoquinoline[2,1-b]isoquinolin-7-ium-2-olate, (E)-3-(4-hydroxy-3-methoxyphenyl)-N-[2-(4-hydroxyphenyl)ethyl]prop-2-enamide, 11,12-dihydro-2,3-(methylenedioxy)-7,8-dimethoxybenzo[c]phenanthridine, and (E)-3-(4-hydroxy-3-methoxyphenyl)-N-[2-(4-hydroxy-3-methoxyphenyl)ethyl]prop-2-enamide were reported. These results provide strong support for the ethnomedical uses of Boerhavia diffusa since the ancient period against diabetes and to cure infections. However, the evaluation of biological activities from the active compounds is not performed in this study.
      PubDate: 2024-07-12
      DOI: 10.3126/jist.v29i1.61075
      Issue No: Vol. 29, No. 1 (2024)
       
  • Landslide Susceptibility Mapping and Vulnerability Assessment in the
           Badigad Watershed of Western Nepal

    • Authors: Suwash Bhandari, Motilal Ghimire, Purusottam Mahat
      Pages: 59 - 73
      Abstract: The landslide is a major and common natural hazard in the Nepalese Himalayas. This phenomenon is because of its active tectonic setting, extensively deformed rock formation, steep mountain terrain, frequent seismic events, high-intensity rainfall during monsoons, and high rate of weathering it occurs every year, especially during the monsoon season. The landslide susceptibility assessment using the Geographic Information System (GIS) and remote sensing tools helps to display the hazards, and vulnerable zones providing the required knowledge of the susceptibility of landslides in a specific region. Landslide susceptibility with vulnerability assessment covering the comprehensive parameters provides an important understanding of the areas that are more likely to the damaging effect of the landslide hazards and is useful for mitigation, management, and avoiding threats. A total of 339 landslides were identified in the Badigad watershed from the satellite images on Google Earth, out of which 20% were used for model validation. The study was carried out using the Weight of Evidence (WoE) model. Eleven factors were considered as possible causative factors for the hazard assessment. Based on the landslide susceptibility map, 11% to 29 % of the study area is found to be in the range of very high to shallow landslide susceptibility. From the final map prepared it is found that many areas of Satyawati Rural Municipality (RM), Ruru RM, Chandrakot RM, and Chhatrakot RM, along with Musikot Municipality in Gulmi and Badigad RM in Baglung district, exhibit a notable high hazard level. The Receiver Operating Characteristics (ROC) graph with the Area under the curve (AUC) value was used to check the performance of the WoE model which shows that the model has 80.4% prediction accuracy for future events which means, the model shows very good performance. The vulnerability within the study area is assessed by obtaining vulnerability scores. To obtain the vulnerability score, fourteen indicators were analyzed following the Local Disaster and Climate Resilience Planning (LDCRP) guideline. The result obtained from the vulnerability assessment showed that two wards, namely Thulolumpek in Satyawati RM of Gulmi and Bobang in Dhorpatan Municipality of Baglung are highly vulnerable. By analyzing and comparing the vulnerability obtained from susceptibility mapping (using GIS) and social methods (using LDCRP guideline), it is observed that they do not converge based on the factors studied.
      PubDate: 2024-07-12
      DOI: 10.3126/jist.v29i1.66351
      Issue No: Vol. 29, No. 1 (2024)
       
  • Evaluation of Antioxidant, Toxicity, and Antidiabetic Activities of Young
           Sprouts of Hordeum vulgare, Triticum aestivum, and Zea mays

    • Authors: Surya Kant Kalauni, Gita Bhattarai, Lekha Nath Khanal
      Pages: 75 - 84
      Abstract: The germination of dormant seeds triggers various metabolic reactions, resulting in the production of essential phytochemicals with diverse biological activities. This contributes to the inclination to consume sprout juices among individuals seeking to enhance their immune system, manage oxidative stress, and prevent complaints associated with metabolic disorders. In this study, we evaluated the antioxidant, toxicity, and antidiabetic activity of young sprout extracts of Hordium vulgare, Triticum aestivum, and Zea mays by 2, 2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging, brine shrimp lethality assay, and α-amylase inhibition methods, respectively. The ethanolic extracts showed the presence of alkaloids, flavonoids, tannins, and polyphenols. The extracts showed moderate antioxidant activity, with Z. mays having the highest capacity, followed by T. aestivum and H. vulgare. Their half-maximal concentration (IC50) values were 54.24±3.35, 95.94±3.29, and 129.26±5.97 μg/mL, respectively. The same trend of toxicity against brine shrimp nauplii was obtained with half-maximal lethal concentration (LC50) values of 326.41, 473.61, and 6768.75 mg/mL respectively. The antioxidant activity across various extracts displayed a positive correlation with the total phenolic and total flavonoid contents. The extracts demonstrated moderate activity in the α-amylase inhibition assay conducted through the starch-iodine method. The outcomes of this study underscore the presence of significant phytochemicals in the young sprouts of commonly consumed cereals, suggesting their potential use as immune boosters and in treating diseases associated with free radicals.
      PubDate: 2024-07-12
      DOI: 10.3126/jist.v29i1.63637
      Issue No: Vol. 29, No. 1 (2024)
       
  • Breeding Habitat Preference of Aedes aegypti (Linnaeus, 1762) and Aedes
           albopictus (Skuse, 1895) along an Altitudinal Gradient in Mid-Western
           Nepal

    • Authors: Buddhi Ram Oli, Manoj Sharma, Pramod Shrestha, Meghnath Dhimal, Ishan Gautam
      Pages: 85 - 93
      Abstract: Aedes aegypti and Aedes albopictus are vectors of many viral diseases including dengue. They prefer different types of wet containers for breeding which differ according to season and region. Hence, their distribution range and preferred breeding containers should be known for their control. To fulfill the information gap, an intensive survey of potential larval breeding sites was conducted in different altitudinal gradients of mid-western Nepal. A total of 2056 wet containers of 11 different types in 1540 household’s premises were inspected. Among them, 3.35% (n=69) containers of eight different types were positive for larvae and/or pupae of A. aegypti whereas 11 types of total 6.32 % (n=130) wet containers were positive for larvae and/or pupae of A. albopictus. Discarded tires and earthen pots were the most preferred breeding containers for A. aegypti and A. albopictus although the habitat preference was found to be different in different altitudinal gradients and seasons. The proportion of different types of available wet containers and the Aedes infested containers varied across the study sites and seasons. The dengue vectors show their presence up to 2438 m above sea level increasing the risk of Aedes borne diseases up to the high mountain region of mid-western Nepal. Hence, the extensive vector survey and change in breeding habitats either through public health education or by some form of law enforcement is essential.
      PubDate: 2024-07-12
      DOI: 10.3126/jist.v29i1.64658
      Issue No: Vol. 29, No. 1 (2024)
       
 
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  Subjects -> SCIENCES: COMPREHENSIVE WORKS (Total: 374 journals)
Showing 1 - 200 of 265 Journals sorted alphabetically
Accountability in Research: Policies and Quality Assurance     Hybrid Journal   (Followers: 19)
Acta Nova     Open Access   (Followers: 2)
Acta Scientifica Malaysia     Open Access   (Followers: 1)
Acta Scientifica Naturalis     Open Access   (Followers: 4)
Adıyaman University Journal of Science     Open Access  
Advanced Science     Open Access   (Followers: 16)
Advanced Science, Engineering and Medicine     Partially Free   (Followers: 8)
Advanced Theory and Simulations     Hybrid Journal   (Followers: 5)
Advances in Research     Open Access  
Advances in Science and Technology     Full-text available via subscription   (Followers: 18)
African Journal of Science, Technology, Innovation and Development     Hybrid Journal   (Followers: 7)
Afrique Science : Revue Internationale des Sciences et Technologie     Open Access   (Followers: 1)
AFRREV STECH : An International Journal of Science and Technology     Open Access   (Followers: 3)
Alfarama Journal of Basic & Applied Sciences     Open Access   (Followers: 12)
American Academic & Scholarly Research Journal     Open Access   (Followers: 4)
American Journal of Applied Sciences     Open Access   (Followers: 22)
American Journal of Humanities and Social Sciences     Open Access   (Followers: 13)
Anales del Instituto de la Patagonia     Open Access  
Applied Mathematics and Nonlinear Sciences     Open Access   (Followers: 2)
Arab Journal of Basic and Applied Sciences     Open Access  
Arabian Journal for Science and Engineering     Hybrid Journal   (Followers: 1)
Archives Internationales d'Histoire des Sciences     Partially Free   (Followers: 5)
Archives of Current Research International     Open Access  
ARPHA Conference Abstracts     Open Access   (Followers: 1)
ARPHA Proceedings     Open Access  
Asian Journal of Advanced Research and Reports     Open Access  
Asian Journal of Scientific Research     Open Access   (Followers: 2)
Asian Journal of Technology Innovation     Hybrid Journal   (Followers: 5)
Australian Field Ornithology     Full-text available via subscription   (Followers: 1)
Australian Journal of Social Issues     Hybrid Journal   (Followers: 6)
Bangladesh Journal of Scientific Research     Open Access  
Beni-Suef University Journal of Basic and Applied Sciences     Open Access   (Followers: 1)
Berichte Zur Wissenschaftsgeschichte     Hybrid Journal   (Followers: 11)
Bilge International Journal of Science and Technology Research     Open Access  
Bioethics Research Notes     Full-text available via subscription   (Followers: 15)
BJHS Themes     Open Access   (Followers: 1)
Bulletin de la Société Royale des Sciences de Liège     Open Access  
Bulletin of the National Research Centre     Open Access  
Chain Reaction     Full-text available via subscription  
Ciencia Amazónica (Iquitos)     Open Access  
Ciencia en su PC     Open Access   (Followers: 1)
Ciencia Ergo Sum     Open Access  
Ciência ET Praxis     Open Access  
Communications Faculty of Sciences University of Ankara Series A2-A3 Physical Sciences and Engineering     Open Access  
Comunicata Scientiae     Open Access  
Conference Papers in Science     Open Access  
Configurations     Full-text available via subscription   (Followers: 11)
COSMOS     Hybrid Journal   (Followers: 1)
Crea Ciencia Revista Científica     Open Access  
Current Issues in Criminal Justice     Hybrid Journal   (Followers: 14)
Current Research in Geoscience     Open Access   (Followers: 6)
Data     Open Access   (Followers: 4)
Dhaka University Journal of Science     Open Access  
Discover Sustainability     Open Access   (Followers: 5)
Einstein (São Paulo)     Open Access  
Ekaia : EHUko Zientzia eta Teknologia aldizkaria     Open Access  
Emergent Scientist     Open Access  
Enhancing Learning in the Social Sciences     Open Access   (Followers: 7)
Enseñanza de las Ciencias : Revista de Investigación y Experiencias Didácticas     Open Access  
Entramado     Open Access  
Entre Ciencia e Ingeniería     Open Access  
Epiphany     Open Access   (Followers: 1)
Ethiopian Journal of Education and Sciences     Open Access   (Followers: 5)
European Online Journal of Natural and Social Sciences     Open Access   (Followers: 4)
European Scientific Journal     Open Access   (Followers: 7)
Evidência - Ciência e Biotecnologia - Interdisciplinar     Open Access  
Exchanges : the Warwick Research Journal     Open Access   (Followers: 1)
Experimental Results     Open Access   (Followers: 2)
Fides et Ratio : Revista de Difusión Cultural y Científica     Open Access  
Fontanus     Open Access   (Followers: 1)
Forensic Science Policy & Management: An International Journal     Hybrid Journal   (Followers: 252)
Frontiers in Climate     Open Access   (Followers: 5)
Frontiers in Science     Open Access   (Followers: 1)
Fundamental Research     Open Access  
Futures & Foresight Science     Hybrid Journal   (Followers: 1)
Gaudium Sciendi     Open Access  
Ghana Studies     Full-text available via subscription   (Followers: 15)
Global Journal of Pure and Applied Sciences     Full-text available via subscription  
Globe, The     Full-text available via subscription   (Followers: 4)
HardwareX     Open Access  
Heidelberger Jahrbücher Online     Open Access  
Heliyon     Open Access   (Followers: 1)
History of Science and Technology     Open Access   (Followers: 6)
Hoosier Science Teacher     Open Access  
Indian Journal of History of Science     Hybrid Journal   (Followers: 3)
Instruments     Open Access  
Interciencia     Open Access  
International Annals of Science     Open Access  
International Journal of Advanced Multidisciplinary Research and Review     Open Access  
International Journal of Applied Science     Open Access  
International Journal of Engineering, Science and Technology     Open Access  
International Journal of Network Science     Hybrid Journal   (Followers: 3)
International Journal of Social Sciences and Management     Open Access   (Followers: 2)
International Journal of Technology Policy and Law     Hybrid Journal   (Followers: 10)
International Science and Technology Journal of Namibia     Open Access   (Followers: 2)
International Scientific and Vocational Studies Journal     Open Access  
Investiga : TEC     Open Access  
Investigación Joven     Open Access  
Investigacion y Ciencia     Open Access   (Followers: 1)
Iranian Journal of Science and Technology, Transactions A : Science     Hybrid Journal  
iScience     Open Access   (Followers: 2)
Issues in Science & Technology     Free   (Followers: 8)
Ithaca : Viaggio nella Scienza     Open Access  
J : Multidisciplinary Scientific Journal     Open Access  
Jaunujų mokslininkų darbai     Open Access   (Followers: 3)
Journal de la Recherche Scientifique de l'Universite de Lome     Full-text available via subscription  
Journal of Chromatography & Separation Techniques     Open Access   (Followers: 9)
Journal of Advanced Research     Open Access   (Followers: 2)
Journal of Analytical Science & Technology     Open Access   (Followers: 5)
Journal of Applied Science and Technology     Full-text available via subscription   (Followers: 1)
Journal of Applied Sciences and Environmental Management     Open Access   (Followers: 1)
Journal of Big History     Open Access   (Followers: 4)
Journal of Composites Science     Open Access   (Followers: 4)
Journal of Diversity Management     Open Access   (Followers: 4)
Journal of Indian Council of Philosophical Research     Hybrid Journal  
Journal of Institute of Science and Technology     Open Access  
Journal of King Saud University - Science     Open Access  
Journal of Mathematical and Fundamental Sciences     Open Access  
Journal of Negative and No Positive Results     Open Access  
Journal of Responsible Technology     Open Access  
Journal of Science and Technology     Open Access   (Followers: 2)
Journal of Science and Technology     Open Access   (Followers: 1)
Journal of Science and Technology (Ghana)     Open Access   (Followers: 3)
Journal of Science and Technology Policy Management     Hybrid Journal   (Followers: 1)
Journal of Science Foundation     Open Access   (Followers: 1)
Journal of Scientific Research and Reports     Open Access   (Followers: 1)
Journal of Shanghai Jiaotong University (Science)     Hybrid Journal  
Journal of Social Science Research     Open Access   (Followers: 2)
Journal of Taibah University for Science     Open Access  
Journal of the Ghana Science Association     Full-text available via subscription   (Followers: 3)
Journal of the History of Ideas     Full-text available via subscription   (Followers: 168)
Journal of the Indian Institute of Science     Hybrid Journal   (Followers: 4)
Journal of the Royal Society of New Zealand     Hybrid Journal   (Followers: 49)
Journal of the South Carolina Academy of Science     Open Access  
Journal of Unsolved Questions     Open Access  
Jurnal Sains Dasar     Open Access  
Jurnal Teknosains     Open Access  
Karaelmas Science and Engineering Journal     Open Access  
Karbala International Journal of Modern Science     Open Access  
Kennedy Institute of Ethics Journal     Full-text available via subscription   (Followers: 10)
Logo STI Science, Technology and Innovation     Open Access   (Followers: 14)
Malawi Journal of Science and Technology     Open Access   (Followers: 6)
Maskana     Open Access  
MethodsX     Open Access  
Mètode Science Studies Journal : Annual Review     Open Access  
Modern Applied Science     Open Access   (Followers: 1)
Momona Ethiopian Journal of Science     Open Access   (Followers: 5)
National Academy Science Letters     Hybrid Journal   (Followers: 3)
National Science Review     Hybrid Journal   (Followers: 1)
Natural Sciences     Open Access  
Natural Sciences Education     Hybrid Journal   (Followers: 1)
Naturen     Full-text available via subscription  
Nepal Journal of Science and Technology     Open Access  
Network Science     Hybrid Journal   (Followers: 4)
Nordic Journal of Science and Technology     Open Access   (Followers: 2)
Nordic Studies in Science Education     Open Access   (Followers: 3)
Nova     Open Access  
Open Conference Proceedings Journal     Open Access  
Open Journal of Applied Sciences     Open Access  
Orbis Cógnita : Revista Científica     Open Access   (Followers: 2)
Patterns     Open Access   (Followers: 9)
People and Nature     Open Access   (Followers: 4)
Población y Desarrollo - Argonautas y caminantes     Open Access  
Politique et Sociétés     Full-text available via subscription   (Followers: 1)
Portal de la Ciencia     Open Access  
Proceedings of the Indian National Science Academy     Full-text available via subscription   (Followers: 5)
Proceedings of the Linnean Society of New South Wales     Full-text available via subscription   (Followers: 2)
Proceedings of the Royal Society of Queensland, The     Full-text available via subscription  
QScience Connect     Open Access  
Quantum Science and Technology     Hybrid Journal   (Followers: 15)
Rafidain Journal of Science     Open Access  
Rehabilitation Research, Policy, and Education     Hybrid Journal   (Followers: 2)
Reportes Científicos de la FaCEN     Open Access  
Reports in Advances of Physical Sciences     Open Access  
Research Ideas and Outcomes     Open Access  
Research Integrity and Peer Review     Open Access  
Research Policy : X     Open Access   (Followers: 3)
Respuestas     Open Access  
Revista Bases de la Ciencia     Open Access  
Revista Cientifica Guillermo de Ockham     Open Access  
Revista Conhecimento Online     Open Access  
Revista Crítica de Ciências Sociais     Open Access  
Revista de Ciencia y Tecnología     Open Access  
Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales     Open Access  
Revista de la Universidad del Zulia     Open Access  
Revista Politécnica     Open Access  
Revista Tecnológica     Open Access  
Revista UniVap     Open Access  
SAINSTIS     Open Access  
Sainteknol : Jurnal Sains dan Teknologi     Open Access  
Sci     Open Access  
Science     Full-text available via subscription   (Followers: 5080)
Science & Diplomacy     Free   (Followers: 3)
Science Advances     Free   (Followers: 44)
Science and Technology     Open Access   (Followers: 2)
Science Heritage Journal     Open Access  
Science World Journal     Open Access  
Science, Technology and Arts Research Journal     Open Access   (Followers: 1)
ScienceRise     Open Access  
Sciences du jeu     Open Access  

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