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  Subjects -> SCIENCES: COMPREHENSIVE WORKS (Total: 374 journals)
Showing 201 - 265 of 265 Journals sorted alphabetically
Jurnal Teknosains     Open Access  
Jurnal Udayana Mengabdi     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)
LOGIKA Jurnal Ilmiah Lemlit Unswagati Cirebon     Open Access  
Makara Journal of Science     Open Access  
Malawi Journal of Science and Technology     Open Access   (Followers: 6)
Maskana     Open Access  
MethodsX     Open Access   (Followers: 1)
Metode & Forskningsdesign     Open Access  
Mètode Science Studies Journal : Annual Review     Open Access  
Middle East Journal of Science     Open Access  
Middle European Scientific Bulletin     Open Access  
Modern Applied Science     Open Access   (Followers: 1)
Momona Ethiopian Journal of Science     Open Access   (Followers: 5)
MUST : Journal of Mathematics Education, Science and Technology     Open Access   (Followers: 4)
Mutis     Open Access  
National Academy Science Letters     Hybrid Journal   (Followers: 3)
National Science Review     Hybrid Journal   (Followers: 1)
Natural Sciences     Open Access  
Natural Sciences Education     Hybrid Journal  
Naturen     Full-text available via subscription  
Nepal Journal of Science and Technology     Open Access  
Network Science     Hybrid Journal   (Followers: 4)
New Directions in the Teaching of Physical Sciences     Open Access   (Followers: 2)
Nordic Journal of Science and Technology     Open Access   (Followers: 2)
Nordic Studies in Science Education     Open Access   (Followers: 3)
Nova     Open Access  
Nuncius     Hybrid Journal   (Followers: 2)
OmniScience : A Multi-disciplinary Journal     Full-text available via subscription  
Open Conference Proceedings Journal     Open Access  
Open Journal of Applied Sciences     Open Access  
Orbis Cógnita : Revista Científica     Open Access   (Followers: 6)
Patterns     Open Access   (Followers: 1)
PENDIPA : Journal of Science Education     Open Access  
People and Nature     Open Access   (Followers: 3)
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  
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  
RAC: Revista Angolana de Ciências     Open Access  
Rafidain Journal of Science     Open Access  
Rehabilitation Research, Policy, and Education     Hybrid Journal   (Followers: 2)
Rekayasa     Open Access  
Reportes Científicos de la FaCEN     Open Access  
Reports in Advances of Physical Sciences     Open Access  
Research     Open Access   (Followers: 2)
Research Ideas and Outcomes     Open Access  
Research Integrity and Peer Review     Open Access  
Research Policy : X     Open Access   (Followers: 2)
Respuestas     Open Access  
Reviews in Theoretical Science     Full-text available via subscription  
Revista Bases de la Ciencia     Open Access  
Revista Binacional Brasil - Argentina: Diálogo entre as ciências     Open Access  
Revista Brasileira de Iniciação Científica     Open Access  
Revista Catarinense da Ciência Contábil     Open Access  
Revista Ciencia y Tecnología     Open Access  
Revista Ciência, Tecnologia & Ambiente     Open Access  
Revista Científica de la FAREM     Open Access  
Revista Científica de la Universidad Nacional del Este     Open Access   (Followers: 5)
Revista Cientifica Guillermo de Ockham     Open Access  
Revista Científica y Tecnológica UPSE     Open Access  
Revista Conhecimento Online     Open Access  
Revista Crítica de Ciências Sociais     Open Access  
Revista de Ciencia y Tecnología     Open Access  
Revista de Información Científica     Open Access  
Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales     Open Access  
Revista de la Sociedad Científica del Paraguay     Open Access  
Revista de la Universidad del Zulia     Open Access  
Revista Eletrônica Ludus Scientiae     Open Access  
Revista Logos Ciencia & Tecnología     Open Access  
Revista MundoFesc     Open Access  
Revista Politécnica     Open Access  
Revista Saber Digital     Open Access  
Revista Sociedad y Economía     Open Access  
Revista Tecnológica     Open Access  
Revista Theoria     Open Access   (Followers: 1)
Revista UNIMAR     Open Access  
Revista UniVap     Open Access  
Revista Vivências em Ensino de Ciências     Open Access   (Followers: 1)
Rihan Journal for Scientific Publishing     Open Access  
Royal Society Open Science     Open Access   (Followers: 7)
Ruhuna Journal of Science     Open Access  
Sainstek : Jurnal Sains dan Teknologi     Open Access  
SAINSTIS     Open Access  
Sainteknol : Jurnal Sains dan Teknologi     Open Access  
Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi     Open Access  
Scholedge International Journal of Multidisciplinary & Allied Studies     Open Access  
Sci     Open Access  
Science     Full-text available via subscription   (Followers: 4371)
Science & Diplomacy     Free   (Followers: 3)
Science & Technology Studies     Open Access   (Followers: 3)
Science Advances     Free   (Followers: 28)
Science and Technology     Open Access   (Followers: 2)
Science Diliman     Open Access  
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  
Sciential     Open Access  
Scientific African     Open Access  
Scientific American     Full-text available via subscription   (Followers: 450)
Scientific American Mind     Full-text available via subscription   (Followers: 10)
Scientific Bulletin     Open Access  
Scientific Data     Open Access   (Followers: 5)
Scientific Journal of Mehmet Akif Ersoy University     Open Access  
Scientific Journal of Pure and Applied Sciences     Open Access   (Followers: 1)
Scientific Reports     Open Access   (Followers: 85)
Scientific World     Open Access  
Scientonomy : Journal for the Science of Science     Open Access   (Followers: 1)
Scienze Regionali : Italian Journal of Regional Science     Full-text available via subscription   (Followers: 18)
Selforganizology     Open Access  
Seminário de Iniciação Científica e Seminário Integrado de Ensino, Pesquisa e Extensão     Open Access  
Simbiótica     Open Access  
SINET : Ethiopian Journal of Science     Open Access   (Followers: 5)
Smart Science     Open Access  
South African Journal of Science     Open Access   (Followers: 2)
South American Sciences     Open Access  
South East European University Review (SEEU Review)     Open Access   (Followers: 2)
Springer Science Reviews     Hybrid Journal   (Followers: 2)
Studies in Science Education     Hybrid Journal   (Followers: 18)
Sultan Qaboos University Journal for Science     Open Access  
Tanzania Journal of Science     Open Access   (Followers: 4)
TD : The Journal for Transdisciplinary Research in Southern Africa     Open Access  
Technologies     Open Access   (Followers: 1)
TECNOSCIENZA: Italian Journal of Science & Technology Studies     Open Access   (Followers: 1)
Temas y Debates     Open Access  
The Innovation     Open Access  
The Scientific World Journal     Open Access  
The Social Studies     Hybrid Journal   (Followers: 3)
The Winnower     Open Access  
Theoria     Open Access   (Followers: 3)
THEORIA : An International Journal for Theory, History and Foundations of Science     Full-text available via subscription   (Followers: 1)
Transactions of Tianjin University     Full-text available via subscription  
Trilogía     Open Access  
TÜBAV Bilim Dergisi     Open Access  
Türk Bilim ve Mühendislik Dergisi     Open Access  
Tydskrif vir Geesteswetenskappe     Open Access  
Uluslararası Bilimsel Araştırmalar Dergisi (IBAD)     Open Access   (Followers: 1)
UNED Research Journal / Cuadernos de Investigación UNED     Open Access  
Uni-pluriversidad     Open Access  
Uniciencia     Open Access  
Universidad, Ciencia y Tecnología     Open Access  
Universitas (León)     Open Access  
Universitas Scientiarum     Open Access  
Unnes Science Education Journal     Open Access  
Vilnius University Proceedings     Open Access  
Walailak Journal of Science and Technology     Open Access  
WikiJournal of Science     Open Access  
World Scientific Research     Open Access  
Zeitschrift für Didaktik der Naturwissenschaften     Hybrid Journal  
Образование и наука     Open Access   (Followers: 1)
Східно-Європейський журнал передових технологій : Eastern-European Journal of Enterprise Technologies     Open Access   (Followers: 3)

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Journal of Natural Sciences Research
Number of Followers: 1  

  This is an Open Access Journal Open Access journal
ISSN (Print) 2224-3186 - ISSN (Online) 2225-0921
Published by IISTE Homepage  [37 journals]
  • Factors Affecting Production and Consumption of African Yam Bean
           (SphenostylisstenocarpaHochst. Ex. A. Rich) Harms) in South-East
           Agro-ecological Zone of Nigeria

    • Authors: Ndubuisi; Perpetua O, Micheal, Abberton T, Nwafor, Solomon C, Amadi, Charles.O
      Abstract: The study assessed factors affecting production and consumption of African yam bean, identified the socio-economic characteristics of the respondents, assessed factor affecting their production, and consumption of AYB and then identified factors affecting the adoption of African Yam Bean technologies in Imo and Enugu states. All the objectives were achieved using simple descriptive statistics such as percentages, frequencies and means. Mean score were determined using likert point scale measurement. The result revealed that African Yam Bean is cultivated majorly by women and middle aged farmers who are still within their productive age with high level of farming experience in the studied locations. Meanwhile, only a few of the farmers belonged to a cooperative societies of farmers organizations in Imo state while majority of the farmers belonged to farmers organization in Enugu state. Below revealed the factors affecting production of African Yam Bean to include high yielding ( = 4.7); early maturing (=4.2); resistant to disease (= 4.1); soil selection (=4.0); drought tolerant (=4.2); ability to maintain its colour over time (=4.0); high nutritious value (=5.0); accessibility (=3.8); affordability (=4.7); complexity (=3.6); and compatibility (=3.8). Also, factors influencing African Yam Bean technology in the studied area which include high nutrient content (=5.0); simple to process (=3.6); palatability (=4.6); less expensive (=4.5); high markatebility (=3.9); high economic value (=4.6); durability (=4.5); health benefits (=4.7); and it is demand driven (=4.3). Keywords: African Yam Bean, Effect, Production, Consumption
      DOI : 10.7176/JNSR/13-10-06 Publication date:May 31st 2022
      Issue No: Vol. 13
       
  • Journal coverpage

    • Authors: Journal Editor
      Abstract: Journal coverpage
      Issue No: Vol. 13
       
  • Comparative Assessment of the Phytochemical Composition and Antimicrobial
           Activity of Ogirisi (Newbouldia Leavis) Rootbark and Rootwood Extracts

    • Authors: OKWESILI L. C., OKENWA J. C., IHEGWUAGU N.E., UHAMA K.C., UBANWA E. D., NWAFOR C.S., ONYIA V. C.
      Abstract: The study was aimed at a comparative evaluation of the phytochemical constituents and antimicrobial activity of the rootwood and rootbark of Newbouldia leavis extracts. The powdered samples were explored using two solvents (ethanol and ethylacetate) as extractants. Phytochemical assay of the crude extracts were done following standard procedures. The results of preliminary phytochemical screening of samples revealed that carbohydrates, alkaloids, flavonoids, phenolics and terpeniods were present in all extracts; saponins and glycosides in ethanol extracts and tannins in all extracts except ethylacetate. The results also show the absence of steroids and phlobatannins in all extracts. The comparative phytochemical evaluation of the ethanol extracts of both the rootwood and rootbark samples showed the presence of these bioactive compounds in varying concentrations. Ethanol proved to be a better extractant for saponins and tannins than ethylaceate and this could be attributed to the difference in their polarities. The antimicrobial activity was carried out using the agar well diffusion method against: Escherichia coli, Staphylococus aureus, Candida albicans and Salmonella typhi. The results of the anti-microbial tests revealed that the rootbark extracts showed a broader spectrum of activity than the rootwood. The antibacterial and antifungal activities of the extracts were notably inhibitory against the test pathogens at MIC values of 2.5 – 10 mg/ml as against the MIC values of 1.25 mg/ml obtained for the standard antibiotics. In conclusion, the wide range of inhibitory zone diameter recorded could be as a result of singular or synergistic action (s) of the bioactive compounds present. Keywords: Phytochemicals, Antimicrobials, Newbouldia leavis
      DOI : 10.7176/JNSR/13-10-01 Publication date:May 31st 2022
      Issue No: Vol. 13
       
  • Growth Performance and Internal Organs of Broiler Chickens Fed Diets
           Containing Unripe Plantain Peels Meal

    • Authors: Uduak Unah, Kolawole Daniel Afolabil, Kufre Ekpo, Anietie Daniel Idio, Michael Odoh
      Abstract: This study was conducted to determine the dietary effect of graded levels of unripe plantain peel meal on the growth performance and internal organs of broiler chickens.  One hundred and five (105) day-old unsexed Arbor Acre broiler chicks were used in a56-day feeding trial. The birds were assigned to 5 dietary treatments (T1- T5) with a total of 21 birds per treatment and replicated three times with 7 birds per replicate in a completely randomized design (CRD).  T1 was the control diet which contained 0% unripe plantain peels and 100% palm kernel cake, T2 contained 25% unripe plantain peels and 75% palm kernel cake, T3 contained 50% unripe plantain peels and 50% palm kernel cake, T4 contained 75% unripe plantain peels and 25% palm kernel cake while T5 contained 100% unripe plantain peelsand 0% palm kernel cake. Feed and water were given ad libitum for 8 weeks the experiment lasted.Resultsshowed that at the starter phase diets had a significant (P<0.05) effect on live weight, daily weight gain, and daily feed intake. During the finisher phase replacement of palm kernel cake with unripe plantain peels hadno significant (P>0.05) effect on daily protein intake, protein efficiency ratio and feed conversion. The performance of birds at both the starter and finisher phases decreased as the level of unripe plantain peel meal (UPPM) increased. Unripe plantain peels did not show negative effect on the liver, bile volume and the caecum but all other parameters for internal organs were significantly (p<0.05) affected by the diet.  In conclusion, unripe plantain peel meal (UPPM) could conveniently replace 25% of Palm kernel cake in the diet of broiler chickens without any deleterious effect and is recommended. Keywords: Unripe plantain peels, Broiler Chicken, Palm Kernel Cake, Internal organs, Growth Performance
      DOI : 10.7176/JNSR/13-10-02 Publication date:May 31st 2022
      Issue No: Vol. 13
       
  • Anti-inflammatory Activity of Ethanolic Leaf Extracts of Thaumatococus
           Danielli on Iodoacetamide Treated Rats

    • Authors: Babajide Olufemi Elemo, Oluwatosin Benedict Adu, Olasunkanmi Kayode Awote, Gbemisola Morounke Saibu, Olabisi Olufunmilayo Ogunrinola, Adesegun Gideon Adeyemo, Olusegun Omolade Fajana, Muhammed Sheriff Yekini
      Abstract: Anti-inflammatory drugs such as Non-steroidal anti-inflammatory drugs (NSAIDs) are used to reduce swellings and pains caused by inflammation but, long term use of these anti-inflammatory drugs results in the damage of human biological system such as the liver, gastrointestinal tract, etc. Hence, there is need for safer, potent, anti-inflammatory drugs. Hence, the anti-inflammatory activity of ethanol leaf extract of Thaumatococcus danielli on iodoacetamide treated rats was investigated. Forty-two (42) rats were divided into seven groups of six rats each. Group 1 (positive control) received 1ml of 1% CMC; Group 2 (negative control) received 1ml of 1% CMC and 1ml of 0.1% iodoacetamide; Group 3 received 50mg/kg of extract (low dose) and 1ml of 0.1% iodoacetamide; Group 4 received 100mg/kg of extract (high dose) and 1ml of 0.1% iodoacetamide; Group 5 received 50mg/kg of extract (high dose) and 1ml of 1% CMC; Group 6 received 100mg/kg of extract (high dose) and 1ml of 1% CMC; Group 7 received 1ml 1% iodoacetamide and 2.14mg/kg diclofenac. Treatment with T. danielli extract showed no significant difference (p>0.05) in all groups in lymphocyte, RBC, granulocyte, platelet, hemoglobin concentration, hematocrit, mean corpuscular volume and mean corpuscular hemoglobin count but, a significant reduction in all groups was observed in ESR. Moreso, a significant decrease was observed in WBC in the high dose group, and a significant increase in group administered diclofenac.  Ethanolic leaves extract of Thaumaococcus danielli possess an anti-inflammatory potential, possibly due to its embedded phytoconstituents. Keywords: Thaumatococcus danielli, Anti-inflammatory activity, Hematological studies, Erythrocyte sedimentation rate, Nitric oxide concentration
      DOI : 10.7176/JNSR/13-10-03 Publication date:May 31st 2022
      Issue No: Vol. 13
       
  • Development of a Spray System for A Drone System in Nigeria

    • Authors: Aigbe O. Sunday, Suleiman I. Abubakar, Isah O. Oshiobugie
      Abstract: The application of crop production and protection materials is a crucial component in the high productivity of American agriculture. Agricultural chemical application is frequently needed at specific times and locations for accurate site‐specific management of crop pests. Piloted agricultural aircraft are typically used to treat large, unobstructed, continuous acreage crops and are not as efficient when working over small or obstructed plots. An Unmanned Aerial Vehicle (UAV), which can be remotely controlled or fly autonomously based on preprogrammed flight plans, may be used to make timely and efficient applications over these small area plots. This research developed a low volume spray system on a fully autonomous UAV to apply crop protection products to specified crop areas. This article discusses the development of the spray system and its integration with the flight control system of a fully autonomous, unmanned vertical take‐off and landing helicopter. Sprayer actuation can be triggered by preset positional coordinates as monitored by the equipped Global Positioning System (GPS). The developed spray system has the potential to provide accurate, site‐specific crop management when coupled with UAV systems. It also has great potential for vector control in areas not easily accessible by personnel or equipment. Keywords. Unmanned Aerial Vehicle, Autonomous flight, Spray system, GPS.
      DOI : 10.7176/JNSR/13-10-05 Publication date:May 31st 2022  
      Issue No: Vol. 13
       
 
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