Subjects -> CHEMISTRY (Total: 986 journals)
    - ANALYTICAL CHEMISTRY (59 journals)
    - CHEMISTRY (713 journals)
    - CRYSTALLOGRAPHY (23 journals)
    - ELECTROCHEMISTRY (28 journals)
    - INORGANIC CHEMISTRY (45 journals)
    - ORGANIC CHEMISTRY (47 journals)
    - PHYSICAL CHEMISTRY (71 journals)

CHEMISTRY (713 journals)                  1 2 3 4 | Last

Showing 1 - 200 of 735 Journals sorted alphabetically
Accreditation and Quality Assurance: Journal for Quality, Comparability and Reliability in Chemical Measurement     Hybrid Journal   (Followers: 29)
ACS Applied Polymer Materials     Hybrid Journal   (Followers: 9)
ACS Catalysis     Hybrid Journal   (Followers: 51)
ACS Chemical Neuroscience     Hybrid Journal   (Followers: 21)
ACS Combinatorial Science     Hybrid Journal   (Followers: 21)
ACS Macro Letters     Hybrid Journal   (Followers: 25)
ACS Materials Letters     Open Access   (Followers: 2)
ACS Medicinal Chemistry Letters     Hybrid Journal   (Followers: 43)
ACS Nano     Hybrid Journal   (Followers: 187)
ACS Photonics     Hybrid Journal   (Followers: 14)
ACS Symposium Series     Full-text available via subscription   (Followers: 3)
ACS Synthetic Biology     Hybrid Journal   (Followers: 28)
Acta Chemica Malaysia     Open Access  
Acta Chimica Slovaca     Open Access   (Followers: 2)
Acta Chimica Slovenica     Open Access   (Followers: 2)
Acta Chromatographica     Full-text available via subscription   (Followers: 7)
Acta Metallurgica Sinica (English Letters)     Hybrid Journal   (Followers: 8)
Acta Scientifica Naturalis     Open Access   (Followers: 2)
adhäsion KLEBEN & DICHTEN     Hybrid Journal   (Followers: 7)
Adhesion Adhesives & Sealants     Hybrid Journal   (Followers: 9)
Adsorption Science & Technology     Open Access   (Followers: 7)
Advanced Electronic Materials     Hybrid Journal   (Followers: 5)
Advanced Functional Materials     Hybrid Journal   (Followers: 70)
Advanced Journal of Chemistry, Section A     Open Access   (Followers: 3)
Advanced Journal of Chemistry, Section B     Open Access   (Followers: 1)
Advanced Science Focus     Free   (Followers: 5)
Advanced Theory and Simulations     Hybrid Journal   (Followers: 2)
Advanced Therapeutics     Hybrid Journal   (Followers: 1)
Advances in Chemical Engineering and Science     Open Access   (Followers: 104)
Advances in Chemical Science     Open Access   (Followers: 50)
Advances in Chemistry     Open Access   (Followers: 34)
Advances in Chemistry     Full-text available via subscription   (Followers: 4)
Advances in Colloid and Interface Science     Full-text available via subscription   (Followers: 16)
Advances in Environmental Chemistry     Open Access   (Followers: 9)
Advances in Enzyme Research     Open Access   (Followers: 10)
Advances in Heterocyclic Chemistry     Full-text available via subscription   (Followers: 8)
Advances in Materials Physics and Chemistry     Open Access   (Followers: 31)
Advances in Nanoparticles     Open Access   (Followers: 17)
Advances in Organometallic Chemistry     Full-text available via subscription   (Followers: 18)
Advances in Polymer Science     Hybrid Journal   (Followers: 50)
Advances in Protein Chemistry and Structural Biology     Full-text available via subscription   (Followers: 18)
Advances in Quantum Chemistry     Full-text available via subscription   (Followers: 6)
Advances in Science and Technology     Full-text available via subscription   (Followers: 16)
Aerosol Science and Engineering     Hybrid Journal  
African Journal of Bacteriology Research     Open Access  
African Journal of Chemical Education     Open Access   (Followers: 5)
African Journal of Pure and Applied Chemistry     Open Access   (Followers: 6)
Aggregate     Open Access  
Agrokémia és Talajtan     Full-text available via subscription   (Followers: 2)
Al-Kimia : Jurnal Penelitian Sains Kimia     Open Access  
Alchemy : Journal of Chemistry     Open Access   (Followers: 3)
Alchemy : Jurnal Penelitian Kimia     Open Access  
Alotrop     Open Access  
AMB Express     Open Access   (Followers: 1)
Ambix     Hybrid Journal   (Followers: 3)
American Journal of Biochemistry and Biotechnology     Open Access   (Followers: 42)
American Journal of Biochemistry and Molecular Biology     Open Access   (Followers: 18)
American Journal of Chemistry     Open Access   (Followers: 37)
American Journal of Plant Physiology     Open Access   (Followers: 7)
Analyst     Hybrid Journal   (Followers: 36)
Analytical Science Advances     Open Access   (Followers: 1)
Angewandte Chemie     Hybrid Journal   (Followers: 152)
Angewandte Chemie International Edition     Hybrid Journal   (Followers: 223)
Annales Universitatis Mariae Curie-Sklodowska, sectio AA – Chemia     Open Access   (Followers: 1)
Annals of Clinical Chemistry and Laboratory Medicine     Open Access   (Followers: 6)
Annual Reports in Computational Chemistry     Full-text available via subscription   (Followers: 4)
Annual Review of Chemical and Biomolecular Engineering     Full-text available via subscription   (Followers: 12)
Annual Review of Food Science and Technology     Full-text available via subscription   (Followers: 13)
Antiviral Chemistry and Chemotherapy     Open Access   (Followers: 1)
Applied Organometallic Chemistry     Hybrid Journal   (Followers: 7)
Applied Spectroscopy     Full-text available via subscription   (Followers: 25)
Applied Surface Science     Hybrid Journal   (Followers: 30)
Arabian Journal of Chemistry     Open Access   (Followers: 4)
ARKIVOC     Open Access   (Followers: 1)
Asian Journal of Applied Chemistry Research     Open Access   (Followers: 1)
Asian Journal of Biochemistry     Open Access   (Followers: 2)
Asian Journal of Chemical Sciences     Open Access  
Asian Journal of Chemistry and Pharmaceutical Sciences     Open Access  
Asian Journal of Physical and Chemical Sciences     Open Access   (Followers: 2)
Atomization and Sprays     Full-text available via subscription   (Followers: 7)
Australian Journal of Chemistry     Hybrid Journal   (Followers: 7)
Autophagy     Hybrid Journal   (Followers: 7)
Avances en Quimica     Open Access  
Biochemical Pharmacology     Hybrid Journal   (Followers: 11)
Biochemistry     Hybrid Journal   (Followers: 200)
Biochemistry Insights     Open Access   (Followers: 6)
Biochemistry Research International     Open Access   (Followers: 5)
BioChip Journal     Hybrid Journal  
Bioinorganic Chemistry and Applications     Open Access   (Followers: 5)
Biointerface Research in Applied Chemistry     Open Access  
Biointerphases     Open Access   (Followers: 1)
Biology, Medicine, & Natural Product Chemistry     Open Access   (Followers: 2)
Biomacromolecules     Hybrid Journal   (Followers: 22)
Biomass Conversion and Biorefinery     Partially Free   (Followers: 10)
Biomedical Chromatography     Hybrid Journal   (Followers: 6)
Biomolecular NMR Assignments     Hybrid Journal   (Followers: 3)
BioNanoScience     Partially Free   (Followers: 3)
Bioorganic & Medicinal Chemistry     Hybrid Journal   (Followers: 93)
Bioorganic & Medicinal Chemistry Letters     Hybrid Journal   (Followers: 66)
Bioorganic Chemistry     Hybrid Journal   (Followers: 9)
Biopolymers     Hybrid Journal   (Followers: 15)
Biotechnic and Histochemistry     Hybrid Journal   (Followers: 1)
Bitácora Digital     Open Access  
Boletin de la Sociedad Chilena de Quimica     Open Access  
Bulletin of Institute of Chemistry and Chemical Technology, Mongolian Academy of Sciences     Open Access  
Bulletin of the Chemical Society of Ethiopia     Open Access   (Followers: 1)
Bulletin of the Chemical Society of Japan     Full-text available via subscription   (Followers: 24)
Bulletin of the Korean Chemical Society     Hybrid Journal   (Followers: 1)
Cakra Kimia (Indonesian E-Journal of Applied Chemistry)     Open Access  
Canadian Association of Radiologists Journal     Full-text available via subscription   (Followers: 1)
Canadian Journal of Chemistry     Hybrid Journal   (Followers: 12)
Canadian Mineralogist     Full-text available via subscription   (Followers: 5)
Carbohydrate Polymer Technologies and Applications     Open Access  
Carbohydrate Polymers     Hybrid Journal   (Followers: 8)
Carbohydrate Research     Hybrid Journal   (Followers: 24)
Carbon     Hybrid Journal   (Followers: 65)
Carbon Capture Science & Technology     Open Access   (Followers: 4)
Catalysis Reviews: Science and Engineering     Hybrid Journal   (Followers: 9)
Catalysis Science and Technology     Hybrid Journal   (Followers: 9)
Catalysis Surveys from Asia     Hybrid Journal   (Followers: 4)
Cell Reports Physical Science     Open Access  
Cellulose     Hybrid Journal   (Followers: 8)
Cereal Chemistry     Full-text available via subscription   (Followers: 4)
Chem     Hybrid Journal   (Followers: 6)
Chem Catalysis     Hybrid Journal   (Followers: 5)
ChemBioEng Reviews     Full-text available via subscription   (Followers: 3)
ChemCatChem     Hybrid Journal   (Followers: 8)
Chemical and Engineering News     Free   (Followers: 21)
Chemical Bulletin of Kazakh National University     Open Access  
Chemical Communications     Hybrid Journal   (Followers: 80)
Chemical Engineering Research and Design     Hybrid Journal   (Followers: 25)
Chemical Physics Impact     Full-text available via subscription   (Followers: 4)
Chemical Research in Chinese Universities     Hybrid Journal   (Followers: 4)
Chemical Research in Toxicology     Hybrid Journal   (Followers: 22)
Chemical Reviews     Hybrid Journal   (Followers: 173)
Chemical Science     Open Access   (Followers: 39)
Chemical Science International Journal     Open Access  
Chemical Technology     Open Access   (Followers: 74)
Chemical Thermodynamics and Thermal Analysis     Open Access   (Followers: 6)
Chemical Vapor Deposition     Hybrid Journal   (Followers: 4)
Chemie in Unserer Zeit     Hybrid Journal   (Followers: 54)
Chemie-Ingenieur-Technik (Cit)     Hybrid Journal   (Followers: 21)
ChemInform     Hybrid Journal   (Followers: 5)
Chemistry & Biodiversity     Hybrid Journal   (Followers: 7)
Chemistry & Industry     Full-text available via subscription   (Followers: 6)
Chemistry - A European Journal     Hybrid Journal   (Followers: 123)
Chemistry - An Asian Journal     Hybrid Journal   (Followers: 19)
Chemistry Africa : A Journal of the Tunisian Chemical Society     Hybrid Journal  
Chemistry and Materials Research     Open Access   (Followers: 17)
Chemistry Central Journal     Open Access   (Followers: 4)
Chemistry Education Research and Practice     Free   (Followers: 6)
Chemistry Education Review     Open Access   (Followers: 1)
Chemistry in Education     Open Access   (Followers: 3)
Chemistry Letters     Full-text available via subscription   (Followers: 44)
Chemistry of Heterocyclic Compounds     Hybrid Journal   (Followers: 5)
Chemistry of Materials     Hybrid Journal   (Followers: 158)
Chemistry of Natural Compounds     Hybrid Journal   (Followers: 10)
Chemistry World     Hybrid Journal   (Followers: 20)
Chemistry-Didactics-Ecology-Metrology     Open Access  
ChemistryOpen     Open Access   (Followers: 1)
ChemistrySelect     Hybrid Journal   (Followers: 1)
Chemistry–Methods     Open Access   (Followers: 1)
Chemkon - Chemie Konkret, Forum Fuer Unterricht Und Didaktik     Hybrid Journal  
ChemNanoMat     Hybrid Journal   (Followers: 1)
Chemoecology     Hybrid Journal   (Followers: 2)
Chemometrics and Intelligent Laboratory Systems     Hybrid Journal   (Followers: 13)
ChemPhotoChem     Hybrid Journal  
ChemPhysChem     Hybrid Journal   (Followers: 12)
ChemPhysMater     Full-text available via subscription   (Followers: 5)
ChemPlusChem     Hybrid Journal   (Followers: 2)
Chempublish Journal     Open Access  
ChemSystemsChem     Hybrid Journal   (Followers: 1)
ChemTexts     Hybrid Journal   (Followers: 1)
CHIMIA International Journal for Chemistry     Open Access   (Followers: 2)
Chinese Journal of Chemistry     Hybrid Journal   (Followers: 6)
Chinese Journal of Polymer Science     Hybrid Journal   (Followers: 9)
Chromatographia     Hybrid Journal   (Followers: 22)
Chromatography Research International     Open Access   (Followers: 4)
Ciencia     Open Access  
Clay Minerals     Hybrid Journal   (Followers: 7)
Cogent Chemistry     Open Access   (Followers: 3)
Colloid and Interface Science Communications     Open Access  
Colloid and Polymer Science     Hybrid Journal   (Followers: 6)
Colloids and Surfaces B: Biointerfaces     Hybrid Journal   (Followers: 8)
Combinatorial Chemistry & High Throughput Screening     Hybrid Journal   (Followers: 2)
Combustion Science and Technology     Hybrid Journal   (Followers: 26)
Comments on Inorganic Chemistry: A Journal of Critical Discussion of the Current Literature     Hybrid Journal   (Followers: 1)
Communications Chemistry     Open Access   (Followers: 2)
Communications Materials     Open Access  
Composite Interfaces     Hybrid Journal   (Followers: 6)
Comptes Rendus : Chimie     Open Access  
Comptes Rendus : Physique     Open Access   (Followers: 2)
Computational and Theoretical Chemistry     Hybrid Journal   (Followers: 11)
Computational Biology and Chemistry     Hybrid Journal   (Followers: 13)
Computational Chemistry     Open Access   (Followers: 4)
Computers & Chemical Engineering     Hybrid Journal   (Followers: 11)
Coordination Chemistry Reviews     Full-text available via subscription   (Followers: 6)
Corrosion Communications     Open Access   (Followers: 4)
Critical Reviews in Biochemistry and Molecular Biology     Hybrid Journal   (Followers: 17)
Croatica Chemica Acta     Open Access  

        1 2 3 4 | Last

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Asian Journal of Chemical Sciences
Number of Followers: 0  

  This is an Open Access Journal Open Access journal
ISSN (Online) 2456-7795
Published by Science-res Publishing Homepage  [5 journals]
  • An Overview of Chemistry Teaching Transformation during COVID-19 Pandemic:
           An Experience from University of Botswana

    • Authors: Girija S. Singh
      Pages: 1 - 6
      Abstract: COVID-19-related disruption in teaching in the University of Botswana led the school to prepare new strategies for running classes and to design innovative way of instruction.  The most notable change was to replace face-to-face lectures with online teaching at least partially (blended teaching and learning). This posed many challenges, especially in the teaching of science and technology subjects. In a laboratory-based discipline such as chemistry the problems encountered were especially daunting.  Moreover, writing mathematical equations, chemical reactions and reaction mechanisms posed their own difficulties.  The present communication provides a brief overview of how chemistry education at the University, the premier national university of Botswana, has been transformed during the last three semesters.  It is based on experience of the author and as judged by the feed-back received from colleagues and the students. Admittedly, the experience is limited and much discussion is still in progress to meet the unresolved challenges. Theory classes at undergraduate levels are now mostly taught online using packages such as Moodle and MS Teams. The tutorial and laboratory sessions have faced the greatest disruptions and the instructors continue to explore ways to conduct these virtually.  Online examinations were found to be limited in their effectiveness, especially in the assessment of drawing chemical structure and reaction mechanisms as well as the students’ ability in scientific writing.
      PubDate: 2021-10-25
      DOI: 10.9734/ajocs/2021/v10i419097
       
  • A Review on Synthesis and Biological Activity of Curcumin and Curcumin
           Derivatives

    • Authors: . RinaIkhar, Prafulla Sabale, Pravin Kadam
      Pages: 7 - 23
      Abstract: Curcumin is a common polyphenolic composite and is the main chemical component of Curcuma longa linn.commonlyknown as turmeric. It is a well-known natural herbal herb traditionally utilized as a flavoring and coloring agent in Indian cooking. Curcumin chemically is diferuloyl methane unit [1,7-bis (4-hydroxy-3- methoxyphenyl)-1,6 heptadiene-3,5-dione] including two ferulic acid residues linked by a methylene bridge. An aromatic o-methoxy phenolic group, α,β-unsaturated β-diketo moiety and a seven carbon linker are essential for the activity. Extensive research gave proof for the role of these various functional groups in its significant biological activities. Due to physiochemical properties such as solubility, stability, bioavailability issues its use is limited in the therapy. To widen its use, various curcumin derivatives and analogs were summarized and assessed for its biological influence. The present review summarisesthe different ways of synthesis of curcumin derivatives with its potential activities that are now in development for the enhancement of bioavailability and therapeutic activity.
      PubDate: 2021-10-30
      DOI: 10.9734/ajocs/2021/v10i419099
       
  • Analysis of Pollution Levels of Heavy Elements Using Fractionation Pattern
           of Street Soils of Langtang North, Plateau State, Nigeria

    • Authors: Lungfa Collins Wuyep, U. F. Hassan, A. A. Mahmoud, T. M. Gudam, M. Siman, Lumi Zakka, Habila Yusuf Thomas
      Pages: 24 - 33
      Abstract: Soil Pollution is a serious environmental challenge around the world today. Anthropogenic activities and population explosion have continued to pose great danger to our environment most especially land resources which are fixed. It is against this backdrop that this study assessed the levels of some selected heavy elements (As, Cd, Co, Cr, Cu, Fe, Mn, Ni and Zn). To achieve this, various fractions of exchangeable bound metals, carbonate bound metals, manganese oxide bound metals, iron/manganese bound metals, organic/sulphide bound metals and residual bound metals in soils of Bala, Gantang, She–for, Walang and Yangang Streets as well as Intorok Street which serves as control, Langtang North, Plateau State, Nigeria were assayed using Atomic Absorption Spectrophotometry. The results show that the bioavailable/soluble fractions ranges in (mg/kg) are for: As (BDL – 34.00), Cd (3.00 - 45.00), Co (BDL – 70.00), Cr (42.00 – 155.00), Cu (47.00 – 73.00), Fe (48.00 – 116.00), Mn (46.00 – 119.00), Ni (42.00 – 108.00), Pb (30.00 – 292.00) and Zn (45.00 – 207.00) in all the Streets investigated. The residual/ insoluble fraction ranges in (mg/kg) are for: As (BDL – 5.00), Cd (1.00 – 11.00), Co (BDL – 25.00), Cr (9.00 – 56.00), Cu (11.00 – 19.00), Fe (11.00 – 28.00), Mn (10.00 – 25.00), Ni (10.00 – 21.00), Pb (11.00 – 68.00) and Zn (9.00 – 47.00). The residual fraction is associated with minimal toxicity since migration and transformation of this fraction under general conditions are limited because of being tightly bound to Fe and Mn oxides and hydroxides. The bioavailable fraction is generally observed to be predominant in all the soil, it is usually associated with anthropogenic factors. Higher heavy element concentrations in these streets were recorded in points where there are evidences of organic load discharge and domestic effluents as in the case of Gantang, Yangang, and Bala streets. The fractionation pattern for the six streets assayed showed the northern (hill) part of Langtang North has no potential risk of contamination. However, the plain or southern part of the study area showed high potential risk that if not monitored will result in serious contamination. Topography plays an important role in the risk factor of heavy element contamination in the study area. The overall results showed evidence of some heavy metal pollution in all the Street soils assayed with possible cumulative effect over time.
      PubDate: 2021-11-02
      DOI: 10.9734/ajocs/2021/v10i419100
       
  • Research Progress in the Application of Artificial Neural Networks in
           Catalyst Optimization

    • Authors: Zhiqiang Liu, Wentao Zhou
      Pages: 34 - 46
      Abstract: The catalyst can speed up the chemical reaction and increase the selectivity of the target product, playing an important role in the chemical industry. By improving the performance of the catalyst, the economic benefits can be greatly improved. Artificial Neural Network (ANN), as one of the most popular machine learning algorithms, has parallel processing and self-learning capabilities as well as good fault tolerance, and has been widely used in various fields. By optimizing the catalyst through ANN, time and resource consumption can be greatly reduced, and greater economic benefits can be obtained. This article reviews how CNN technology can help people solve highly complex problems and accelerate progress in the catalytic world.
      PubDate: 2021-11-08
      DOI: 10.9734/ajocs/2021/v10i419101
       
  • Evaluation of Major and Trace Elements Present in Extracted Humic Acid
           from Bog Peat

    • Authors: K. Gm´eling, T. Kocsis, J. Osan, Z. Kis, M. A. Pocsai, K. Tok´esi, I. F. Barna, Gy. Padi
      Pages: 47 - 55
      Abstract: The human consumption of humic acid is increasingly relevant therefore the knowledge of exact composition is essential. To make a step in that direction we present gap filling results obtained from three different element analytical investigations of humic acid extracted from fen peat examined in the Carpathian Basin. Prompt-gamma activation (PGAA), neutron activation analytical method (NAA) and X-ray fluorescence (XRF) analysis was carried out. After presenting and explaining the essence of used analytical methods we show some collected spectra and a table where all the concentration of the iden- tified elements are presented with the corresponding measurement errors. All together 42 elements were  identified. PACS.78.70.En, 78.70. Nx,78. 90.+t X-ray emission spectra and fluorescence, Neutroninelastic scattering, Other topics in optical properties, condensed matter aspect.
      PubDate: 2021-12-10
      DOI: 10.9734/ajocs/2021/v10i419102
       
  • Chemical and Medicinal Properties of Rauwolfia vomitoria (AFZEL) Harvested
           from the South Eastern Nigeria

    • Authors: Iwu Irenus Chinonye, Chinonye Chijioke, C. Samuel Iwuji, Obiagwu Ifeoma, Uchenna Onu Lynda, Ukaoma Adanma Augusta, Chijioke-Okere Maureen, Ezekoye. Miracle Oluchukwu
      Pages: 56 - 71
      Abstract: Aim: This work was carried out to evaluate the chemical constituents of the leaf of Rauwolfia vomitoria and to determine the activities of the extract on some selected human pathogens Study Design: The study was designed to characterize the compounds in the extract and to determine their medicinal applications Place and Duration of Study: The work was done at the Department of Chemistry Federal University of Technology Owerri Methodology: Standard assay technique was used to evaluate the phytochemical content of the sample. GC-MS analysis was carried out on the chloroform extract of the sample. The anti microbial activities were determines using the well agar diffusion method Results: The analysis of the components of the leaf extract of Rauwolfia vomitoria Afzel revealed the presence of 34 compounds with their molecular masses  molecular weights and structures, all elucidated. The initial phytochemical screening revealed the presence of alkaloids 1.92%, saponins 1.12% , flavonoids 1.15% and cardiac glycosides, the extract showed marked inhibition of the growth of certain human pathogens with inhibition diameters recorded against Klebsiella pnuemonia, 22 mm, Pseudomonas aeruginosa 18 mm,Aspergillis niger 24 mm and Mucor specie 9 mm but was resistant to Streptococcus specie.The extract contain anti cancer,anti-tumuor antioxidant, anti-inflammatory ,cardioprotectives compounds which inludes phytol, Vitamin E, Campestrol, sistosterol, squalene, lupeol and vaccenic acid. Conclusion: Owing to the identified properties of the sample ,Rauwofia vomitoria leaf is excellent ingredient for the treatment of diaeases related to Klebsiella pnuemonia, Pseudomonas aeruginosa Aspergillis niger and Mucor specie and also for the treatment cancer, tumuor, inflammation, arthritis,beingn prostate hyperplasia, fibromyalgia, allergies, coronary heart.
      PubDate: 2021-12-13
      DOI: 10.9734/ajocs/2021/v10i419103
       
  • Synthesis and Characterization of Barium-Iron Oxide Based Neodymium,
           Gadolinium and Praseodymium Doped Ceramic Materials

    • Authors: Arda Aytimur, Serhat Koçyiğit, Ibrahim Uslu
      Pages: 72 - 79
      Abstract: Neodymium, gadolinium, and praseodymium doped barium-iron oxide ceramic materials were synthesized by polymeric precursor method. No carbon contents or the moisture was observed in infrared spectra of the ceramics. Neodymium and gadolinium doped ceramics were crystallized in cubic lattice form, while praseodymium doped ceramic was formed in hexagonal lattice. Same results were observed from SEM images, Neodymium and gadolinium doped ceramics had similar morphological structures, but praseodymium doped ceramics had slightly different morphology. Neodymium and gadolinium doped ceramics consisted of grain-like structure, while praseodymium doped ceramic material consisted of both grain-like and pillar-like crystal structures.
      PubDate: 2021-12-14
      DOI: 10.9734/ajocs/2021/v10i419105
       
  • Relationship between Vitamin D Status, Dyslipaedemia and Antioxidant
           Status in Children with Idiopathic Nephrotic Syndrome in South West,
           Nigeria

    • Authors: Ayobola Sonuga, Mary Adeyanju, Oyebola Sonuga, Ibikunle Akinlua, Ayokunle Makanjuola
      Pages: 80 - 89
      Abstract: Dysregulated lipid metabolism and oxidative stress are strong factors that are implicated in the development of proteinuria and glomerular injury in Nephrotic Syndrome (NS). Vitamin D seems to be a promising tool in influencing lipid metabolism and antioxidant status in NS. Aim: This study aims at investigating the relationship between Vitamin D, dyslipaedemia and oxidative stress in NS. Study Design: This is a case-control study. Place and Duration of Study: Children’s Outpatient Clinic (CHOP) of University College Hospital (UCH) Ibadan, Nigeria between year 2019-2021. Methods: This study involves fifty children aged 5 to 12 years, freshly diagnosed with Idiopathic NS and fifty apparently healthy children as control. Blood samples were taken from them and analytes quantified by standard laboratory methods. Students’ t test and Pearson correlation were used to compare variables between the two groups respectively. Results: Results showed significant decrease (P <.001) in Vit. D levels, GPX, SOD and CAT in NS. A significant decrease (P<.001) occurred in HDL, a significant increase (P <.001) in TG, TC and LDL levels in children with NS when compared with the control. There was a strong significant positive relationship between Catalase and Vit. D, SOD and Vit. D (r= 0.896, 0.869 respectively, P<.001) in NS. While a weak non significant positive relationship occurred between HDL and Vit. D, GPX and Vit D (r=0.0585, 0.0236 respectively, P >.001). A weak negative relationship occurred between TG and Vit. D, TC and Vit. D, LDL and Vit. D (r=-0.0432,-0.219, -0.231 respectively, P>.001), in NS. Thus, vitamin D insufficiency influences serum lipid profiles and antioxidants in paediatric Idiopathic NS.  
      PubDate: 2021-12-19
      DOI: 10.9734/ajocs/2021/v10i419107
       
  • Research on Application of Artificial Neural Network in Fault Diagnosis of
           Chemical Process

    • Authors: Haonan Wang, Yijia Chen
      Pages: 90 - 97
      Abstract: Chemical processes are usually toxic, corrosive, flammable and explosive. If the process fails, the danger is extremely high. Traditional model-based fault diagnosis methods need to establish an accurate mathematical model of the system, while modern engineering processes are usually large in scale and complex, and it is difficult to establish an accurate mathematical model. Artificial neural network has been widely used in chemical process because of its advantages of parallel processing, self-adaptation, robustness, learnability and fault tolerance. Artificial neural networks based on "deep learning" have been successfully applied to fault diagnosis in various chemical processes. This article summarizes the principle and development process of artificial neural networks, and analyzes the research progress and application status of deep neural networks in chemical process fault diagnosis based on cases. Finally, it is pointed out that deep neural network in the field of chemical process fault diagnosis is of great significance in solving the impact of less fault data and system state changes on the fault detection rate, and promoting the industrial application of fault diagnosis models.
      PubDate: 2021-12-19
      DOI: 10.9734/ajocs/2021/v10i419108
       
  • Metal Complexes of Gatifloxacin: Synthesis, Characterization and
           Evaluation of Biological Activity

    • Authors: Nikunj Dave, Hardik Bhatt
      Pages: 98 - 107
      Abstract: The antibiotic agent Gatifloxacin is well known for its drug design and coordinating ability towards metal ions. In this paper, synthesis and biological activity of Mn(II), Co(II), Ni(II), Cu(II) and Mg(II) complexes of gatifloxacin is reported. Ligand is itself prepared using o-phenylenediamine (OPD) and 3-acetyl coumarin. The structure of complexes has been investigated using some physiochemical and spectroscopic techniques. In vitro evaluation of these complexes was also carried out for antibacterial and antimicrobial activity. Some complexes exhibited promising anti-bacterial and antimicrobial activity compared to gatifloxacin drug.
      PubDate: 2021-12-21
      DOI: 10.9734/ajocs/2021/v10i419109
       
 
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